Shell assembly and electronic equipment

Abstract

The embodiment of the invention provides a shell assembly and electronic equipment. The shell assembly is arranged to be of a relative movement structure, that is, the rear cover can move relative to the shell, so that the rear cover can be switched between the closing position and the lifting position. A display screen in the host end is arranged on the shell to display information, and the heating element is arranged between the shell and the rear cover. When the rear cover is switched to the lifting position, the volume of the heat dissipation channel between the rear cover and the shell is large, the air cooling resistance of the heat dissipation channel is small, the air cooling heat dissipation efficiency can be improved, and efficient heat dissipation of the heating element is facilitated. The support provides a supporting function for the shell assembly, so that the display screen is supported. When the host end is not used or the heating element does not need to be efficiently cooled, the rear cover is switched to the closed position, the rear cover is stacked on the shell, and the shell and the rear cover which are stacked are integrally light, thin and portable. Through the lifting mechanism, movement of the rear cover relative to the shell is achieved, switching of the rear cover between the closing position and the lifting position is achieved, and the user experience is improved.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of two-in-one electronic devices, and more particularly to a housing assembly and an electronic device. Background Art

[0002] A two-in-one electronic device (such as a two-in-one tablet computer) of the related art includes a host end and a keyboard end. The host end has a display screen for displaying information. The host end has a bracket integrated with the host body to provide a support function. The host end and the keyboard end can be used together, similar to the office use of a laptop computer. The host end and the keyboard end can be separated, and the host end can be used alone, similar to the handheld use of a conventional tablet computer.

[0003] Some components in the host end (such as the central processing unit and the graphics processing unit) will generate relatively high heat when working, and a heat dissipation channel can be set in the host end to realize air cooling of the heat-generating components. As the working performance of the host end is improved, the heat generated by the heat-generating components in the host end tends to increase, and accordingly, a more efficient heat dissipation solution is needed. In conventional technology, efficient heat dissipation can be achieved by increasing the thickness of the host end body and reducing the internal resistance of air cooling. This solution is not conducive to the requirements of lightness and portability of the body. Related technology It is difficult for the host end in two-in-one electronic devices to have both lightness and portability and efficient heat dissipation of the heat-generating components, which has become a technical problem that the industry urgently needs to solve. Summary of the invention

[0004] The embodiments of the present application provide a housing assembly and an electronic device, which solve the technical problem that the host end of the two-in-one electronic device in the related art is difficult to achieve both a light and thin body and high efficiency in heat dissipation of the heating element.

[0005] The embodiment of the present application adopts the following technical solution:

[0006] In a first aspect, an embodiment of the present application provides a shell assembly, comprising: a shell, a back cover, a lifting mechanism and a bracket. The back cover can be movably mounted on the shell so that the back cover can switch between a closed position and a lifted position. A heating element can be arranged between the shell and the back cover. When the back cover is in the closed position, the back cover and the shell are stacked. When the back cover is in the lifted position, the back cover and the shell are separated, and a heat dissipation channel for air cooling and heat dissipation of the heating element is formed between the shell and the back cover. The lifting mechanism is arranged on the shell, and is used to drive the back cover to switch between a closed position and a lifted position. The bracket is connected to the shell.

[0007] The shell assembly provided in the embodiment of the present application is configured as a relatively movable structure, that is, the back cover can move relative to the outer shell, so that the back cover can be switched between a closed position and a raised position. The heating element is arranged between the outer shell and the back cover. When the back cover is switched to the raised position, the volume of the heat dissipation channel between the back cover and the outer shell is larger, and the air cooling resistance of the heat dissipation channel is smaller, which can improve the air cooling efficiency and facilitate the efficient heat dissipation of the heating element. The bracket provides a supporting function for the shell assembly. When there is no need to dissipate heat efficiently for the heating element, the back cover is switched to the closed position, and the back cover is stacked on the outer shell. The stacked outer shell and back cover are thin and portable as a whole. The movement of the back cover relative to the outer shell is achieved by a lifting mechanism, and the switching of the back cover between the closed position and the raised position is achieved, thereby improving the user experience.

[0008] In an optional implementation, the rear cover is rotatably connected to the outer shell, so that the rear cover can move relative to the outer shell, and the rear cover can be switched between a closed position and a raised position.

[0009] In an optional implementation, the rear cover is connected to the housing in a linearly movable manner, so that the rear cover can move relative to the housing, so that the rear cover can be switched between a closed position and a raised position.

[0010] In an optional implementation, the rear cover and the bracket are located on the same side of the housing; when the rear cover is in a closed position, the bracket can be stacked on the housing so that the rear cover and the bracket are flush, so that the housing assembly presents a thinner structure with a better appearance.

[0011] In an optional implementation, the housing, the back cover and the bracket are all roughly plate-shaped, and the back cover and the bracket are set to a size that matches the housing. When the back cover and the bracket are stacked on the housing, the back cover and the bracket do not exceed the edge range of the housing, and the housing assembly is similar to the appearance of a tablet computer, so that the tablet computer mode can be used. The display screen is set on the front of the housing, and the back cover and the bracket are set on the back of the housing. By adjusting the position of the bracket relative to the housing, the host end can switch between the laptop mode and the tablet mode.

[0012] In an optional implementation, the back cover is rotatably connected to the housing, the bracket is rotatably connected to the housing, the back cover and the bracket are located on the same side of the housing, and the rotation axis of the back cover and the rotation axis of the bracket are parallel and arranged in the middle of the housing. When the back cover and the bracket are both rotated relative to the housing, the back cover and the bracket are similar to the opening and closing movement of the two wings of a butterfly. When the back cover is switched from the closed position to the raised position, the back cover rotates around the rotation axis by a predetermined angle, increasing the volume of the space between the back cover and the housing, facilitating heat convection around the back cover, and realizing efficient air cooling and heat dissipation of the heating element between the housing and the back cover. By adjusting the angular position of the bracket relative to the housing, the bracket is in an expanded state, and the ends of the bracket and the housing away from the back cover serve as supporting parts, thereby realizing the supporting function of the shell assembly.

[0013] In an optional implementation, the back cover and the outer shell are rotationally connected via a back cover pivot assembly, which includes a first arcuate portion provided on the outer shell and a second arcuate portion provided on the back cover, the axis of the first arcuate portion and the axis of the second arcuate portion coincide with each other, and the first arcuate portion and the second arcuate portion are slidably matched to enable the back cover to be rotationally connected to the outer shell.

[0014] The first arc portion and the second arc portion can be understood as an arc wall and an arc groove that are slidably matched. The arc wall is slidably installed in the arc groove, so that the outer shell and the back cover can be rotatably connected. The back cover shaft assembly adopts the form of a virtual axis shaft, so that the back cover shaft assembly between the outer shell and the back cover does not protrude outside the outer shell and the back cover, and the structure has a good appearance.

[0015] In an optional implementation, the first arc portion is provided on the base, the second arc portion is provided on the movable member, the base is fixed on the housing, and the movable member is fixed on the back cover. The first arc portion and the second arc portion are slidably matched, so that the movable member is rotatably connected to the base, thereby realizing the rotatable connection between the back cover and the housing.

[0016] In an optional implementation, the base has two first arc-shaped portions facing each other, the movable part has two second arc-shaped portions facing each other, and the two first arc-shaped portions are slidably installed on the two second arc-shaped portions in a one-to-one correspondence to achieve a stable rotational connection between the outer shell and the back cover.

[0017] In an optional implementation, when the back cover and the bracket are both stacked on the back of the housing, most of the structure of the movable part is stored in the base, the rotation axis of the movable part relative to the base is higher than the surface of the base, the movable part and the base are shielded by the back cover and the bracket, and will not protrude outside the back cover and the bracket, and the shell assembly as a whole presents a thin plate-like shape, with a good appearance in terms of structure. The movable part rotates at a predetermined angle relative to the base, and part of the structure of the movable part is located outside the base, and the movable part and the base are shielded by the back cover and the bracket, and will not protrude outside the back cover and the bracket.

[0018] In an optional implementation, the back cover and the outer shell are rotationally connected via a back cover pivot assembly, which includes a physical pivot assembly. One of the structures of the outer shell and the back cover is provided with a pivot hole, and the other structure is fixed with a physical pivot. The physical pivot is rotationally connected to the pivot hole, thereby realizing the rotational connection between the back cover and the outer shell.

[0019] In an optional implementation, the rear cover is connected to the outer shell in a linearly movable manner, and the rear cover can move linearly along the thickness direction of the outer shell. When the rear cover switches from the closed position to the raised position, the rear cover moves backward along the thickness direction of the outer shell by a predetermined displacement, thereby increasing the space volume between the rear cover and the outer shell.

[0020] In an optional implementation, the back cover may be arranged to move linearly at a predetermined angle relative to the surface where the outer shell is located, which can also realize the movement of the back cover relative to the outer shell.

[0021] In an optional implementation, the rear cover is connected to the housing in a linearly movable manner, and the rear cover and the housing are connected by a scissor mechanism. The scissor mechanism can realize a linearly movable connection between the rear cover and the housing, and realize the switching of the rear cover between the closed position and the raised position.

[0022] In an optional implementation, one end of the scissor mechanism is connected to the middle of the rear cover, and the other end is connected to a corresponding position of the outer shell, so that the rear cover can move linearly stably relative to the outer shell.

[0023] In an optional implementation, the bracket and the housing are rotatably connected via a bracket shaft assembly, and the bracket shaft assembly can provide a torque to suspend the bracket relative to the housing, so that the user can adjust the angle between the bracket and the housing, and the torque provided by the bracket shaft assembly keeps the bracket at the adjusted angle.

[0024] In an optional implementation, the support shaft assembly can be implemented in the form of a virtual axis shaft or a physical shaft.

[0025] In an optional implementation, the bracket shaft assembly includes a fixed seat and a rotating member; the rotating member has a first arc structure, the fixed seat has a second arc structure, the axis of the first arc structure coincides with the axis of the second arc structure, the first arc structure and the second arc structure are slidably matched to enable the rotating member to be rotatably connected to the fixed seat, the fixed seat is connected to the outer shell, and the rotating member is connected to the bracket.

[0026] The first arc structure and the second arc structure can be understood as an arc wall and an arc groove that are slidably matched. The arc wall is slidably installed in the arc groove to realize the rotation connection between the bracket and the housing. The bracket shaft assembly adopts the form of a virtual axis shaft, so that the bracket shaft assembly between the housing and the bracket does not protrude outside the back cover and the bracket, and the structure has a good appearance.

[0027] In an optional implementation, the rotating member includes a rotating part and a mounting part connected to each other, and the first arc structure is arranged on the rotating member. The rotating member and the fixed seat are connected to each other by a virtual axis rotating shaft. In an optional implementation, the bracket shaft assembly includes a fixed seat and a rotating member; the rotating member has a first arc structure, the fixed seat has a second arc structure, and the rotating member is connected to the bracket; the fixed seat includes a main body and an accessory part, the accessory part has a third arc structure, the main body has a fourth arc structure, the axis of the second arc structure, the axis of the third arc structure and the axis of the fourth arc structure coincide, the third arc structure and the fourth arc structure are slidably matched to make the accessory part rotatably connected to the main body, the main body is fixed to the shell, the second arc structure is arranged on the side of the accessory part facing away from the third arc structure, and the rotating member is rotatably connected to the accessory part; when the rotating member rotates to a predetermined angle, the accessory part rotates with the rotating member. It can realize the large-angle rotation of the bracket connected to the rotating member, and avoid the situation where the rotating member is separated from the fixed seat when the bracket rotates at a large angle.

[0028] In an optional implementation, the first arc-shaped structure, the second arc-shaped structure, the third arc-shaped structure and the fourth arc-shaped structure have the same axis and can be arranged in sequence along the axial direction.

[0029] In an optional implementation, when the back cover and the bracket are both stacked on the back of the outer shell, the rotating part and the accessory part are both housed in the main body part, the rotating part is housed in the accessory part, the rotation axis of the rotating part and the rotation axis of the accessory part coincide with and are higher than the surface of the main body part, the rotating part, the accessory part and the main body part are blocked by the back cover and the bracket, and will not protrude outside the back cover and the bracket, and the shell assembly as a whole presents a thin plate-like shape, and has a good structural appearance.

[0030] In an optional implementation, the first arc structure of the rotating member is set as an arc groove, the second arc structure of the accessory part is set as an arc wall, the arc wall is embedded in the arc groove and the arc wall can slide around the arc groove, so as to realize the rotation connection between the rotating member and the accessory part. The third arc structure of the accessory part is set as an arc groove, the fourth arc structure of the main body is set as an arc wall, the arc wall is embedded in the arc groove and the arc wall can slide around the arc groove, so as to realize the rotation connection between the accessory part and the main body. The second arc structure and the third arc structure facing each other on the accessory part are respectively in the form of an arc wall and an arc groove, so that the axial dimension of the accessory part can be made small.

[0031] In an optional implementation, the rotating member has a first limiting portion, and the accessory portion has a second limiting portion circumferentially arranged opposite to the first limiting portion; when the angle between the bracket and the back cover is 0°, the first limiting portion and the second limiting portion are circumferentially spaced apart; during the rotation of the rotating member, the circumferential distance between the first limiting portion and the second limiting portion gradually decreases until the first limiting portion abuts against the second limiting portion, and the rotating member will drive the accessory portion to rotate, and also prevent the rotating member from separating from the accessory portion.

[0032] In an optional implementation, the accessory part has a third limiting part, and the main body part has a fourth limiting part which is circumferentially arranged relative to the third limiting part; in the process of the rotating member driving the accessory part to rotate, the circumferential distance between the third limiting part and the fourth limiting part gradually decreases until the third limiting part abuts against the fourth limiting part, and the accessory part cannot continue to rotate, thereby limiting the maximum rotation position of the accessory part relative to the main body part and preventing the accessory part from separating from the main body part.

[0033] In an optional implementation, when a virtual axis rotation axis is realized on the rotating member, the accessory part and the main body part, the first arc structure can be symmetrically arranged at the opposite ends of the rotating member, the second arc structure and the third arc structure can be symmetrically arranged at the opposite ends of the accessory part, and the fourth arc structure can be symmetrically arranged at the opposite ends of the main body part. The arc structures are configured accordingly, so that the rotational connection between the rotating member and the accessory part, and the rotational connection between the accessory part and the main body part are more stable and reliable.

[0034] In an optional implementation, the bracket shaft assembly also includes a torsion connector and a torsion sliding member; the torsion connector has a first end and a second end that are relatively arranged, the first end of the torsion connector is rotatably connected to the rotating member, and the rotation axis of the first end of the torsion connector and the rotation axis of the rotating member are arranged in parallel and spaced apart; the torsion sliding member is slidably installed in the limiting groove of the fixed seat, and the second end of the torsion connector and the torsion sliding member are interference fit; during the rotation of the rotating member relative to the fixed seat, the torsion connector moves with the rotating member, the torsion sliding member slides in the limiting groove with the torsion connector, the second end of the torsion connector rotates relative to the torsion sliding member, and the friction between the torsion sliding member and the second end of the torsion connector generates a torque that causes the rotating member to suspend relative to the fixed seat.

[0035] The fixed seat, rotating member, torsion connector and torsion slide can be understood as a crank slider mechanism. After adjusting any angle of the rotating member, the friction between the second end of the torsion connector and the torsion slide will generate torque or friction torque, so that the torque of the crank slider mechanism is balanced, the crank slider mechanism as a whole maintains the same posture, and the rotating member maintains the adjusted angle position. By adjusting the angle position of the bracket relative to the housing, the user can change the angle position of the rotating member relative to the fixed seat, so that the rotating member and the bracket remain in a suspended position relative to the housing, thereby realizing the bracket angle adjustment and support functions.

[0036] In an optional implementation, a connecting shaft is provided at the first end of the torsion connector, and the connecting shaft is rotatably connected to the connecting hole of the rotating member, so that the torsion connector rotates around the axis of the connecting hole, thereby realizing the rotational connection between the torsion connector and the rotating member.

[0037] In an optional implementation, two connecting holes arranged opposite to each other may be provided on the rotating member, and a connecting shaft is provided on both sides of the first end of the torque connector respectively. The two connecting shafts are coaxial and connected to the two connecting holes one by one, so that the torque connector can be stably rotatably connected to the rotating member.

[0038] In an optional implementation, the second end of the torsion connector has a torsion bag, the torsion slide includes a pin, the length direction of the pin is parallel to the rotation axis of the rotating member, and the torsion bag is sleeved outside the pin and has an interference fit. When the torsion bag and the pin rotate relative to each other, the inner side surface of the torsion bag and the outer peripheral surface of the pin contact and rub, which can generate torsion or friction torque, which is conducive to realizing the function of the rotating member to remain suspended relative to the fixed seat.

[0039] In an optional implementation, the mating portion of the pin and the torque pack can be set as a round shaft, and the inner cross-section of the torque pack can also be set as a circle, which is conducive to the rotational connection and frictional fit between the pin and the torque pack to generate torque.

[0040] In an optional implementation, the torque pack may have a notch running through the axial direction of the torque pack. The torque pack is easy to produce elastic deformation, which is beneficial to the contact friction between the inner side of the torque pack and the outer peripheral surface of the pin shaft, and can generate a large torque or friction moment.

[0041] In an optional implementation, the limiting groove can be set as a linear groove, and the length direction of the limiting groove is perpendicular to the rotation axis of the rotating member. When the rotating member rotates relative to the fixed seat, the torsion connecting member can follow the movement of the rotating member, and the torsion sliding member can follow the second end of the torsion connecting member to slide in the limiting groove.

[0042] In an optional implementation, the extension direction of the linear groove is parallel to the surface of the housing, so that the thickness of the fixing seat with the limiting groove can be reduced.

[0043] In an optional implementation, the extension route of the limit groove can also be set to an arc or other shape. In an optional implementation, the limit grooves are arranged in pairs and spaced apart, and the torsion sliding member includes a pin shaft, and the two ends of the pin shaft are respectively slidably installed in the limit grooves arranged in pairs and spaced apart, so that the torsion sliding member stably slides along the limit grooves of the fixed seat.

[0044] In an optional implementation, a connecting portion is provided on the torsion sliding member, and the connecting portion is slidably mounted on the limiting groove so that the torsion sliding member slides along an extension route of the limiting groove.

[0045] In an optional implementation, two opposite side surfaces of the connecting portion and two opposite side surfaces of the limiting groove are correspondingly slidably matched, so that the torsion sliding member can be reliably moved along the extension route of the limiting groove.

[0046] In an optional implementation, the limiting groove is a linear groove, and the connecting part includes a rectangular portion. The opposite side surfaces of the rectangular portion and the opposite side surfaces of the linear groove correspond to each other in a sliding fit. The rectangular portion can slide along the length direction of the linear groove. The rectangular portion will not rotate during the sliding process, so that the torque sliding part slides along the length direction of the linear groove.

[0047] In an optional implementation, a profile connection can be adopted between the torsion sliding member and the connecting part. One of the structural members of the torsion sliding member and the connecting part is provided with a profile hole, and the other structural member is provided with a profile segment. The profile segment is inserted into the profile hole. The torsion sliding member and the connecting part are connected, and the two are relatively stationary in the circumferential direction of the torsion sliding member.

[0048] In an optional implementation, a profile segment with a rectangular cross-section is provided at the end of the torsion sliding member, and a profile hole with a rectangular cross-section is provided at the connecting portion. The profile segment and the profile hole are adapted to each other, and the profile segment can be inserted into the profile hole to achieve a profile connection between the torsion sliding member and the connecting portion.

[0049] In an optional implementation, a profile hole is provided at the end of the torsion sliding member, and a profile segment is provided on the connecting portion, so that a profile connection between the torsion sliding member and the connecting portion can be achieved.

[0050] In an optional implementation, the lifting mechanism and the bracket shaft are linked, the bracket and the shell are rotationally connected through the bracket shaft assembly, the bracket shaft assembly is connected to the lifting mechanism, and the lifting mechanism is configured to be driven by the bracket shaft assembly during the process of the bracket rotating relative to the shell by a predetermined angle, so that the back cover can switch between the closed position and the lifted position.

[0051] The lifting mechanism realizes the coupled movement of the back cover and the bracket. When the user rotates and opens the bracket to support the host end, the bracket shaft assembly drives the lifting mechanism to move, and the lifting mechanism drives the back cover to move relative to the shell, so that the back cover switches from the closed position to the lifted position. The host end opens the bracket and the back cover in one step, providing users with a convenient operation experience.

[0052] In an optional implementation, the support shaft assembly includes a fixed seat, a rotating member, a torsion connector and a torsion slide member, the first end of the torsion connector is rotatably connected to the rotating member, the rotation axis of the rotating member and the rotation axis of the torsion connector are arranged in parallel and spaced apart, the second end of the torsion connector and the torsion slide member are interference fit, and the torsion slide member can slide along the limit groove of the fixed seat. The rotating member is connected to the support, the fixed seat is connected to the shell, and the rotating member rotates relative to the fixed seat to realize the rotation of the support relative to the shell.

[0053] The lifting mechanism includes a swinging member and a connecting rod; the swinging member is rotatably connected to the outer shell, and the swinging member has a first end and a second end arranged opposite to each other, the first end of the swinging member is arranged to face away from the bracket shaft assembly and connected to the back cover, and the second end of the swinging member is arranged toward the bracket shaft assembly and has a guide groove extending along a predetermined route; one end of the connecting rod is connected to the torsion sliding member of the bracket shaft assembly to follow the movement of the torsion sliding member, and the other end of the connecting rod has a sliding shaft, which is passed through the guide groove and can move along the guide groove; in the process of the bracket rotating at a predetermined angle relative to the outer shell, the connecting rod follows the torsion sliding member to move along the limiting groove, the sliding shaft can drive the swinging member to rotate relative to the outer shell, and the back cover follows the movement of the swinging member.

[0054] When the bracket rotates relative to the housing, the movable torsion sliding part in the bracket shaft assembly is used to make a motion connection through the connecting rod and the swinging part. The movable torsion sliding part drives the connecting rod, the swinging part and the back cover to move in turn, thereby realizing the linkage effect that the back cover follows the movement of the bracket.

[0055] In an optional implementation, the swing member and the connecting rod can be roughly configured as a strip, which is convenient for arrangement between the outer shell and the back cover, so that the thickness of the entire structure can be reduced to meet the transmission requirements of the connecting rod and the swing member.

[0056] In an optional implementation, the end of the connecting rod and the torsion sliding member may be connected via a connecting portion, and the connecting portion is slidably mounted in a limiting groove of the fixing seat.

[0057] In an optional implementation, a connecting portion is respectively provided at both ends of the torsion sliding member, and the end of the connecting rod close to the torsion sliding member has two first connecting ears arranged at intervals, and the torsion sliding member is located between the two first connecting ears. The two ends of the torsion sliding member correspond one-to-one to the two first connecting ears and are connected through different connecting portions, so that the torsion sliding member and the connecting rod are reliably connected.

[0058] In an optional implementation, the connecting rod has two spaced-apart second connecting ears at one end close to the swinging member, the second end of the swinging member is located between the two second connecting ears, the two ends of the sliding shaft pass through the two sides of the guide groove of the swinging member, and the two ends of the sliding shaft are respectively fixed on the two second connecting ears, so that the connecting rod and the swinging member are reliably connected.

[0059] In an optional implementation, a support seat is provided on the housing, the support seat has a mounting hole, a fixed shaft is provided at the rotation axis of the swinging member, the fixed shaft passes through the mounting hole and can rotate around the axis of the mounting hole. The fixed shaft and the mounting hole are clearance-matched to realize the swinging member being rotatably connected to the housing.

[0060] In an optional implementation, the swinging member has coaxial fixed shafts on both sides, the housing is provided with two spaced-apart support seats, and the fixed shafts on both sides are installed in the mounting holes of the corresponding support seats to achieve stable rotation of the swinging member.

[0061] In an optional implementation, a locking member is fixed on the rear cover, and a gap is formed between the rear cover and the locking member for accommodating the first end of the swinging member, and the first end of the swinging member is located between the rear cover and the locking member. The swinging member and the rear cover are movably connected instead of being fixedly connected, and the first end of the swinging member is arranged in the gap between the rear cover and the locking member. When the swinging member drives the rear cover to move, the first end of the swinging member can move within the gap, thereby ensuring the reliability of the connection between the swinging member and the rear cover.

[0062] In an optional implementation, the locking member and the back cover may be connected by means of a fastener or the like, and the fastener is passed through the first ends of the locking member and the swing member and fixed to the back cover.

[0063] In an optional implementation, the guide groove includes a connected climbing section and a retaining section, and the climbing section and the retaining section are arranged along the direction from the first end to the second end of the swing member; when the sliding shaft slides against the climbing section, the sliding shaft can drive the swing member to rotate, and the rear cover follows the movement of the swing member; when the sliding shaft slides against the retaining section, the swing member remains stationary relative to the rear cover, and the rear cover remains in the lifted position.

[0064] In an optional implementation, the climbing section can be set as a straight line with a predetermined angle. When the extension route of the limit slot of the fixing seat is set as a straight line, the holding section can be set as a straight line, and when the rear cover is in the raised position, the extension route of the holding section is parallel to the extension route of the limit slot.

[0065] In an optional implementation, the first angle range is set to 0° to 40°, and the second angle range is set to 40° to 165°. The angle between the back cover and the outer shell when the back cover is in the lifted position, that is, the maximum lifting angle of the back cover relative to the outer shell is set to 2°. During the process of the bracket opening and rotating within the first angle range, the back cover follows the bracket to lift from 0° to the maximum lifting angle of 2°. As the bracket continues to open and enter the second angle range, the back cover remains unchanged at the maximum lifting angle of 2°. During the process of the bracket folding and rotating from 40° back to 0° to overlap the outer shell, the back cover follows the bracket from the maximum lifting angle of 2° back to the closed position of 0°.

[0066] In an optional implementation, the guide groove further includes a virtual position segment, and one end of the climbing segment away from the holding segment is connected to the virtual position segment, so as to overcome the virtual axis rotation axis virtual position problem of the bracket rotation axis assembly, so that the rear cover is lifted to a desired height position at a predetermined bracket angle.

[0067] In an optional implementation, when the swing member and the connecting rod are applied to a solution in which both the rear cover and the bracket are rotatably connected to the housing, the rear cover has a pivot end and a free end that are arranged opposite to each other. The connecting rod and the swing member can be arranged along the direction from the pivot end to the free end of the rear cover, and the connection position of the swing member and the rear cover can be arranged close to the free end of the rear cover, so that a relatively small force can be used to drive the rear cover to rotate.

[0068] In an optional implementation, the pivot end of the back cover is arranged near the middle of the shell, and the connection position between the swing member and the back cover is close to the free end of the back cover, so that the back cover can be driven to rotate relative to the shell more conveniently through the bracket shaft assembly, connecting rod and swing member.

[0069] In an optional implementation, when the swinging member and the connecting rod are used in a scheme where the back cover and the outer shell are linearly movable and connected, and the bracket and the outer shell are rotationally connected, the connecting rod can be set close to the rotation axis of the bracket, and the swinging member is set at a position far away from the rotation axis of the bracket. The back cover can be driven to move linearly relative to the outer shell through the bracket shaft assembly, the connecting rod and the swinging member.

[0070] In an optional implementation, the back cover is configured to move linearly in the thickness direction relative to the outer shell, and the connection position between the swinging member and the back cover is arranged near the middle of the back cover. In the process of the swinging member driving the back cover to move linearly, the swinging member can smoothly drive the back cover to move linearly relative to the back side of the outer shell.

[0071] In an optional implementation, the lifting mechanism includes a rotating drive member and a first transmission assembly, the output end of the rotating drive member is connected to the input end of the first transmission assembly, and the output end of the first transmission assembly is connected to the rear cover so that the rear cover moves following the output end of the first transmission assembly.

[0072] When the rotating drive member is working, the rotating drive member drives the first transmission assembly to move, and the first transmission assembly drives the rear cover to move relative to the housing, so as to realize the switching of the rear cover between the closed position and the raised position. The combination of the rotating drive member and the first transmission assembly occupies a small space and has a stable and reliable structure.

[0073] In an optional implementation, a temperature sensor for detecting the temperature of the heating element is provided on the housing assembly, and the lifting mechanism is configured to drive the rear cover to move when the temperature detected by the temperature sensor exceeds the rear cover lifting temperature value, so that the rear cover switches from the closed position to the lifting position. When the temperature exceeds the predetermined temperature value, the lifting mechanism is activated, and the lifting mechanism drives the rear cover to move to the lifting position, thereby achieving efficient heat dissipation of the heating element.

[0074] In an optional implementation, a trigger element may be configured on the shell assembly, and the rotating drive member in the lifting mechanism is configured to enable the rotating drive member to operate when the trigger element is triggered, so that the rotating drive member and the first transmission assembly cooperate to achieve switching of the rear cover between the closed position and the lifted position.

[0075] In an optional implementation, the trigger element is a button arranged on the shell assembly, the button is electrically connected to the rotating drive member, and the button is configured to cause the rotating drive member to rotate forward or reverse when pressed and drive the first transmission assembly to switch the rear cover between the closed position and the raised position.

[0076] In an optional implementation, the trigger element is a virtual button displayed on the display screen, and the virtual button is configured to cause the rotating drive member to rotate forward or reverse when pressed and drive the first transmission assembly to switch the rear cover between the closed position and the raised position.

[0077] In an optional implementation, the first transmission assembly may adopt different transmission modes that can convert rotation into linear movement, such as a cam mechanism that converts cam rotation into push rod linear movement, and a gear-rack mechanism that converts gear rotation into rack linear movement.

[0078] In an optional implementation, the first transmission assembly includes a worm gear assembly, a gear rack assembly and a slideway assembly; the worm gear assembly includes a worm and a worm wheel in meshing transmission, and the worm serves as the input end of the first transmission assembly. The gear rack assembly includes a first gear, a second gear and a rack, the worm wheel and the first gear are synchronously rotated and connected, the first gear and the second gear are matched for transmission, the second gear and the rack are meshed for transmission, and the rack is slidably mounted on the housing. The slideway assembly includes a first slide bar and a first sliding member, the first slide bar is fixed on the rack, the first sliding member has a first slideway extending along a predetermined route, the first sliding member serves as the output end of the first transmission assembly, the first slide bar is inserted into the first slideway and can slide along the first slideway to drive the first sliding member to move relative to the housing, and the rear cover follows the movement of the first slide member.

[0079] The first transmission component adopts the form of a combination of multiple transmission structures, which can convert the rotation of the rotating drive member into the up and down movement of the first sliding member, so as to drive the back cover to move relative to the outer shell to realize the switching between the closed position and the raised position. The first transmission component is relatively small in the thickness direction of the outer shell, so it is convenient to be arranged between the outer shell and the back cover.

[0080] In an optional implementation, a gear box is provided on the housing, and the worm wheel, the worm, the first gear and the second gear are mounted on the gear box, so that each part is kept in a predetermined position, the influence of the outside on the related parts is reduced, and the reliability of the first transmission assembly is improved.

[0081] In an optional implementation, the gear box may include a base body and a cover body, and parts such as gears may be arranged on the base body. The cover body is fixed to the base body to protect the internal parts.

[0082] In an optional implementation, a first guide rod extending along the length direction of the rack is provided on the housing, the rack has a first groove extending along the length direction of the rack, and the first guide rod is embedded in the first groove to enable the rack to slide along the length direction of the first guide rod.

[0083] The first guide rod guides the rack, so that the rack keeps sliding in a predetermined direction, thereby achieving stable meshing transmission between the second gear and the rack, and stable sliding cooperation between the first slide rod of the rack and the first slide groove of the first sliding member.

[0084] In an optional implementation, a first groove may be provided on opposite sides of the rack, each first groove is provided with a first guide rod, and the two first guide rods are arranged at intervals and fixed on the shell, so as to facilitate the stable sliding of the rack relative to the shell. In an optional implementation, the back cover includes a first plate body, the first slide groove is a linear groove, the first slide groove has a first end and a second end relative to each other, the first end of the first slide groove is arranged toward the bracket and the first plate body, and the second end of the first slide groove is arranged away from the bracket and the first plate body; when the first slide rod is located at the first end of the first slide groove, the back cover is in a closed position; when the first slide rod is located at the second end of the first slide groove, the back cover is in a raised position. During the forward and backward movement of the rack, the first slide rod can drive the first sliding member to move up and down relative to the shell, thereby driving the back cover to switch between the closed position and the raised position.

[0085] In an optional implementation, the rotation drive member and the first transmission assembly are applied to a solution in which the rear cover and the bracket are both rotatably connected to the housing, and the rear cover has a pivot end and a free end arranged opposite to each other. The output end of the first transmission assembly can be arranged close to the free end of the rear cover, and a relatively small force can be used to drive the rear cover to rotate.

[0086] In an optional implementation, the pivot end of the rear cover is arranged near the middle of the outer shell, and the output end of the first transmission assembly is arranged near the free end of the rear cover, so that the rear cover can be driven to rotate relative to the outer shell more conveniently by rotating the driving member and the first transmission assembly.

[0087] In an optional implementation, the rotating drive member and the first transmission assembly are applied to a solution in which the back cover and the outer shell are linearly movable and connected, and the bracket and the outer shell are rotationally connected. The first transmission assembly can be set at different positions of the back cover, and the back cover can be driven to move linearly relative to the outer shell through the rotating drive member and the first transmission assembly.

[0088] In an optional implementation, the back cover is configured to move linearly in the thickness direction relative to the outer shell, and the output end of the first transmission component is arranged near the middle of the back cover. In the process of the first transmission component driving the back cover to move linearly, the first transmission component can smoothly drive the back cover to move linearly relative to the back side of the outer shell.

[0089] In an optional implementation, the lifting mechanism includes a sliding key and a second transmission assembly, the sliding key is slidably mounted on the housing, the sliding key is connected to the input end of the second transmission assembly, the output end of the second transmission assembly is connected to the rear cover, and the output end of the second transmission assembly is connected to the rear cover, so that the rear cover moves with the output end of the second transmission assembly. When the sliding key is toggled, the sliding key drives the second transmission assembly to move, and the second transmission assembly drives the rear cover to move relative to the housing, so as to switch the rear cover between the closed position and the lifted position.

[0090] In an optional implementation, the sliding key can be arranged at the frame position of the housing, and a strip groove is provided at the frame position to install the sliding key, which occupies less space.

[0091] In an optional implementation, the second transmission component may adopt a transmission method that can change the direction of linear motion, and the linear motion directions of the input and output are nearly vertical.

[0092] In an optional implementation, the second transmission component includes a second sliding rod and a second sliding member, the second sliding rod serves as the input end of the second transmission component, the second sliding member has a second sliding groove extending along a predetermined route, the second sliding member serves as the output end of the second transmission component, the second sliding rod is passed through the second sliding groove and can slide along the second sliding groove to drive the second sliding member to move relative to the housing, and the back cover follows the movement of the second sliding member.

[0093] The second transmission component can convert the linear movement of the sliding key into the up and down movement of the second sliding member, so as to drive the back cover to move relative to the outer shell to realize the switching between the closed position and the raised position. Moreover, the second transmission component is smaller in the thickness direction of the outer shell, so it is convenient to be arranged between the outer shell and the back cover.

[0094] In an optional implementation, the sliding key and the second slide bar are connected by a connecting structure, and the connecting structure is slidably mounted on the housing, and each part is easy to process and assemble. The connecting structure can be set to a predetermined shape to facilitate the connection between the sliding key and the second slide bar.

[0095] In an optional implementation, the housing is provided with a second guide rod extending in a predetermined direction, the connecting structure has a second groove extending in the predetermined direction, and the second guide rod is embedded in the second groove to enable the connecting structure to slide along the length direction of the second guide rod. The second guide rod guides the connecting structure, so that the connecting structure keeps sliding in the predetermined direction, thereby achieving stable sliding of the sliding key on the housing, and stable sliding cooperation between the second sliding rod and the second sliding groove of the second sliding member.

[0096] In an optional implementation, a second groove may be provided on opposite sides of the connection structure, each second groove is provided with a second guide rod, and the two second guide rods are spaced apart and fixed on the shell, so as to facilitate stable sliding of the connection structure relative to the shell.

[0097] In an optional implementation, the rear cover includes a first plate body, the second slide groove is a linear groove, the second slide groove has a first end and a second end opposite to each other, the first end of the second slide groove is arranged toward the bracket and the first plate body, and the second end of the second slide groove is arranged away from the bracket and the first plate body; when the second slide rod is located at the first end of the second slide groove, the rear cover is in a closed position; when the second slide rod is located at the second end of the second slide groove, the rear cover is in a raised position. During the forward and backward movement of the connecting structure, the second slide rod can drive the second sliding member to move up and down relative to the housing, thereby driving the rear cover to switch between the closed position and the raised position.

[0098] In an optional implementation, the sliding key and the second transmission assembly are applied to a solution in which the rear cover and the bracket are both rotatably connected to the housing, and the rear cover has a pivot end and a free end arranged opposite to each other. The output end of the second transmission assembly can be arranged close to the free end of the rear cover, so that a relatively small force can be used to drive the rear cover to rotate.

[0099] In an optional implementation, the pivot end of the rear cover is disposed near the middle of the housing, and the second transmission assembly is disposed near the free end of the rear cover, so that the rear cover can be driven to rotate relative to the housing more conveniently through the sliding key and the second transmission assembly.

[0100] In an optional implementation, the sliding key and the second transmission assembly are applied to a solution in which the back cover and the outer shell are linearly movable and connected, and the bracket and the outer shell are rotationally connected. The second transmission assembly can be set at different positions of the back cover, and the sliding key and the second transmission assembly can drive the back cover to move linearly relative to the outer shell.

[0101] In an optional implementation, the back cover is configured to move linearly in the thickness direction relative to the outer shell, and the output end of the second transmission component is arranged near the middle of the back cover. In the process of the second transmission component driving the back cover to move linearly, the second transmission component can smoothly drive the back cover to move linearly relative to the back side of the outer shell.

[0102] In an optional implementation, a plurality of lifting mechanisms may be arranged at intervals on the outer shell, and the plurality of lifting mechanisms drive the rear cover to move relative to the outer shell, so that the movement of the rear cover is more stable and reliable.

[0103] In an optional implementation, a lifting mechanism is arranged at the two opposite ends of the shell corresponding to the back cover area. The two lifting mechanisms are configured to provide a stable driving force for the back cover, so that the movement of the back cover is more stable and smooth, and a larger installation space is formed between the two lifting mechanisms, which makes it convenient to concentrate more devices between the two lifting mechanisms and to arrange devices such as circuit boards with a larger area.

[0104] In an optional implementation, a lifting mechanism is arranged at one end of the shell corresponding to the back cover area. The use of a lifting mechanism can also realize the movement of the back cover relative to the shell, realize the switching of the back cover between the closed position and the lifted position, and also facilitate the arrangement of the device on the shell.

[0105] In an optional implementation, an air-cooling heat dissipation module is provided between the housing and the rear cover, the air-cooling heat dissipation module is installed on the inner side of the housing, and the air-cooling heat dissipation module is connected to the heating element to dissipate air cooling of the heating element. The heating element and the circuit board assembly connected to the heating element are also on the housing. When the rear cover is in the raised position, the heat dissipation channel formed between the housing and the rear cover has a larger volume, the internal resistance of air cooling is smaller, and the air cooling efficiency is improved.

[0106] In an optional implementation, an air-cooling heat dissipation module is provided between the outer shell and the back cover, and the air-cooling heat dissipation module is installed on the inner side of the back cover, and the air-cooling heat dissipation module is connected to the heating element to dissipate heat from the heating element by air. The heating element and the circuit board assembly connected to the heating element are also on the back cover. During the switching of the back cover between the closed position and the raised position, the air-cooling heat dissipation module, the heating element and the circuit board assembly can move relative to the outer shell following the back cover. When the back cover is in the raised position, the air-cooling heat dissipation module and the heating element are away from the display screen on the front of the outer shell, and the heat generated by the heating element will not be excessively conducted to the display screen, so that the user will not overheat when touching and using the display screen, which is more comfortable. The heat dissipation channel formed between the outer shell and the back cover has a large volume, a small internal resistance for air cooling, and improved air cooling efficiency.

[0107] In an optional implementation, the air-cooling heat dissipation module includes a fin heat sink and a fan, the fin heat sink is connected to the heating element, and the fan and the fin heat sink are arranged relative to each other to cool the fin heat sink. The heat generated by the heating element is transferred to the fin heat sink, and the airflow generated by the fan passes through the fin heat sink, quickly taking the heat of the fin heat sink out of the housing and the back cover, achieving an efficient heat dissipation effect, so that the heating element can work normally in a good temperature environment.

[0108] In an optional implementation, the air-cooled heat dissipation module further includes a heat-dissipating member, which has an evaporation zone and a condensation zone arranged at intervals, the evaporation zone is connected to the heating element, and the fin heat sink is connected to the condensation zone. The heat generated by the heating element is thermally transferred to the heat-dissipating member, and the heat is transferred to the fin heat sink over a large area through the heat-dissipating member, and the fin heat sink is air-cooled by a fan, so that high-power heating elements such as processors can be efficiently cooled.

[0109] In an optional implementation, the heat-distributing member is extended along the left and right opposite sides of the housing assembly, the middle of the heat-distributing member is used as the evaporation zone, and the opposite ends of the heat-distributing member are used as condensation zones, the evaporation zone is in contact with the heating element, and each condensation zone is equipped with a fin heat sink and a fan. Correspondingly, the housing assembly is provided with air inlet holes and air outlet holes connected to the heat dissipation channel to achieve air cooling and heat dissipation of the heating element.

[0110] In an optional implementation, a temperature sensor for detecting the temperature of the heating element is provided on the housing assembly, and the fan is configured to start working when the temperature detected by the temperature sensor exceeds the fan start temperature value. When the temperature exceeds the predetermined value, the fan in the air-cooling heat dissipation module is started, and the air-cooling heat dissipation module forms air cooling and heat dissipation for the heating element, so that the heating element with higher heat generation can work normally at a suitable temperature.

[0111] In an optional implementation, the back cover includes a first plate body and a first edge wall connected to each other, the first edge wall having a first air inlet and a first air outlet; the outer shell includes a second plate body and a second edge wall connected to each other; the first plate body and the second plate body are arranged opposite to each other, and the first edge wall and the second edge wall are arranged opposite to each other; when the back cover is in a closed position, the first edge wall is located on the inner side of the second edge wall as a whole; when the back cover is in a raised position, the first edge wall is at least partially exposed to allow the first air inlet and the first air outlet to be exposed.

[0112] When the rear cover is in the closed position, the rear cover is stacked on the outer shell, the first plate body and the second plate body are arranged close to each other, and the first edge wall is located on the inner side of the second edge wall, which can present a thinner appearance similar to a tablet computer. When the rear cover is in the raised position, a heat dissipation channel with a large volume is formed between the first plate body and the second plate body, and the air cooling internal resistance is small. The first air inlet and the first air outlet are both connected to the heat dissipation channel, and the air flow can enter the heat dissipation channel through the first air inlet and then be discharged from the first air outlet, so that the heat generating element in the heat dissipation channel is efficiently cooled by air.

[0113] In an optional implementation, the first edge wall and the second edge wall can be set to a smaller thickness, so that when the back cover is stacked on the shell, related devices such as a circuit board and a processor can be accommodated between the first plate body and the second plate body.

[0114] In an optional implementation, a first air inlet and a first air outlet are provided on the first edge wall of the back cover, and when the back cover is in a closed position, the first edge wall is located on the inner side of the second edge wall; the second edge wall has a second air inlet and a second air outlet; when the back cover is in a closed position, the first air inlet and the second air inlet are connected along the air flow direction, and the first air outlet and the second air outlet are connected along the air flow direction; when the back cover is in a raised position, the first air inlet and the first air outlet are both exposed, and the second air inlet and the second air outlet are both exposed.

[0115] When the back cover is in the closed position, the air flow can pass through the second air inlet and the first air inlet in sequence, enter between the outer shell and the back cover, and then be discharged from the first air outlet and the second air outlet, so as to cool the heat generating components between the outer shell and the back cover, so that heat convection heat dissipation can be achieved when the back cover is stacked on the outer shell.

[0116] In an optional implementation, the back cover and the outer shell are both provided with an air inlet and an air outlet, the effective cross-sectional area of ​​the first air inlet is larger than the effective cross-sectional area of ​​the second air inlet, and the effective cross-sectional area of ​​the first air outlet is larger than the effective cross-sectional area of ​​the second air outlet.

[0117] When the rear cover is in the closed position, the first edge wall is located on the inner side of the second edge wall, and only the second air inlet and the second air outlet of a smaller area can be seen from the outside of the shell assembly, and the overall shape of the shell assembly is more beautiful. When the rear cover is in the raised position, the first edge wall is at least partially exposed, the first air inlet and the first air outlet are exposed, the first air inlet and the second air inlet both take in air, and the first air outlet and the second air outlet both discharge air, which increases the air inlet and outlet efficiency, and the air discharge is smooth and the noise is low.

[0118] In an optional implementation, when the back cover is stacked on the outer shell, heat conduction can be used to dissipate heat. There is no need to set air inlet and outlet holes on the outer shell. The heat generated by the heating element can be conducted to the outer shell or the back cover through a heat conductor (such as a heat pipe), and the heat is dissipated by the outer shell or the back cover.

[0119] In an optional implementation, the back cover includes a first plate body and a first edge wall connected to each other, and the outer shell includes a second plate body and a second edge wall connected to each other, the second edge wall has a second air inlet and a second air outlet; the first plate body and the second plate body are arranged opposite to each other, and the first edge wall and the second edge wall are arranged opposite to each other; when the back cover is in a closed position, the second edge wall is located on the inner side of the first edge wall as a whole; when the back cover is in a raised position, the second edge wall is at least partially exposed to allow the second air inlet and the second air outlet to be exposed.

[0120] When the back cover is in the raised position, a heat dissipation channel with a large volume is formed between the first plate body and the second plate body, and the air cooling internal resistance is small. The second air inlet and the second air outlet are both connected to the heat dissipation channel. The air flow can enter the heat dissipation channel through the second air inlet and then be discharged from the second air outlet, thereby performing efficient air cooling and heat dissipation on the heat generating components in the heat dissipation channel.

[0121] In an optional implementation, the second edge wall of the shell has a second air inlet and a second air outlet, and the first edge wall has a first air inlet and a first air outlet; when the back cover is in a closed position, the first air inlet and the second air inlet are connected along the air flow direction, and the first air outlet and the second air outlet are connected along the air flow direction; when the back cover is in a raised position, the first air inlet and the first air outlet are both exposed, and the second air inlet and the second air outlet are both exposed.

[0122] When the back cover is in the closed position, the air flow can pass through the first air inlet and the second air inlet in sequence, enter between the outer shell and the back cover, and then be discharged from the second air outlet and the first air outlet, so as to cool the heat generating components between the outer shell and the back cover, so that heat convection heat dissipation can be achieved when the back cover is stacked on the outer shell.

[0123] In an optional implementation, when the back cover is in a closed position, the first plate body and the second plate body are parallel, so that when the back cover is stacked on the outer shell, a thinner plate-like shape similar to a tablet computer is formed, forming a better appearance.

[0124] In an optional implementation, when the rear cover is in the raised position, the first edge wall is away from the first plate body and the second edge wall is away from the second plate body, so that the internal components such as the circuit board and the processor between the rear cover and the housing are shielded by the first edge wall and the second edge wall, and the internal components are effectively protected.

[0125] In an optional implementation, a first barrier wall is provided on the first edge wall, and a second barrier wall is provided on the second edge wall. When the back cover is in a closed position, the first barrier wall and the second barrier wall are spaced apart from each other. During the process of the back cover being lifted relative to the outer shell, the first barrier wall and the second barrier wall approach each other until the first barrier wall and the second barrier wall abut against each other so that the back cover cannot continue to move relative to the outer shell, thereby keeping the back cover in the lifted position and better limiting the maximum movement position of the back cover relative to the outer shell.

[0126] In an optional implementation, in a scheme in which the back cover is rotatably connected to the outer shell, the first edge wall includes two first side walls and one second side wall, the two first side walls are spaced apart along the rotation axis of the back cover, and the second side wall is located between the two first side walls and spaced apart from the rotation axis of the back cover.

[0127] When the bracket supports the shell and the back cover is in the raised position, the first air inlet, the heat dissipation channel and the first air outlet are connected in sequence, the air-cooling heat dissipation module starts to work, and the air flow enters the heat dissipation channel from the first air inlet located next to the back cover to take away the heat generated by the heating element. The air flow is discharged from the first air outlet located on the upper side of the back cover, realizing the method of cold air flowing next to and hot air flowing above, which is conducive to the realization of air-cooling heat dissipation.

[0128] In an optional implementation, the second edge wall includes two third side walls and one fourth side wall, the two third side walls are spaced apart along the rotation axis direction of the rear cover, and the fourth side wall is located between the two third side walls and spaced apart from the rotation axis of the rear cover. The second air inlet is provided on the third side wall, and the second air outlet is provided on the fourth side wall. When the rear cover is in the closed position, the first edge wall is located on the inner side of the second edge wall, that is, the first side wall is located on the inner side of the third side wall, and the second side wall is located on the inner side of the fourth side wall.

[0129] When the back cover is in the closed position, the air-cooling heat dissipation module starts working, and the air flows into the heat dissipation channel through the second air inlet hole next to the outer shell and the first air inlet hole next to the back cover, taking away the heat generated by the heating element, and the air flows out through the first air outlet hole on the back cover and the second air outlet hole on the outer shell, realizing the mode of cold air flowing next to and hot air flowing above, which is conducive to the realization of air-cooling heat dissipation.

[0130] In an optional implementation, a temperature sensor for detecting the temperature of the heating element is provided on the housing component, and the host end is configured to switch to the frame and frequency limit mode when the temperature detected by the temperature sensor exceeds the frame and frequency limit temperature value. When the predetermined temperature value is exceeded, the host end enters the frame and frequency limit mode, that is, the low-performance operation mode, to reduce the heat generated by the heating element and prevent the heating element from continuing to work at high temperature.

[0131] In an optional implementation, the back cover has a first air inlet and a first air outlet, the housing has a second air inlet and a second air outlet, and an air cooling and heat dissipation module is provided between the housing and the back cover. When the back cover is in a closed position or a raised position, air cooling and heat dissipation can be performed through the air cooling and heat dissipation module. A temperature sensor for detecting the temperature of the heating element is provided on the housing assembly. According to different temperature values ​​of the heating element, the host end can perform air cooling and heat dissipation, rear cover lifting or performance mode control.

[0132] In an optional implementation, a first temperature value and a second temperature value are set for the host end, and the first temperature value is less than the second temperature value. When the detected temperature of the temperature sensor is greater than or equal to the first temperature value, the fan is started, and the air cooling and heat dissipation module performs air cooling and heat dissipation on the heating element, and air inlet and outlet are realized through the second air inlet and the second air outlet of the housing.

[0133] The increased system load causes the temperature to continue to rise. When the detected temperature of the temperature sensor is greater than or equal to the second temperature value, the air inlet and outlet efficiency of the second air inlet and second air outlet of the casing cannot support the high-load heat dissipation work. The host side can be set to enter a high-performance operation mode or a low-performance operation mode, or the two operation modes are displayed on the user interface of the display screen for the user to choose.

[0134] In an optional implementation, when entering the high-performance operation mode, the lifting mechanism is turned on to drive the movement of the back cover, so that the back cover switches from the closed position to the lifted position. On the basis of the air inlet and outlet of the second air inlet and the second air outlet of the outer shell, the first air inlet and the first air outlet of the back cover are involved in the air inlet and outlet. The heat dissipation channel formed between the outer shell and the back cover has a larger volume, a smaller internal air cooling resistance, and an improved air cooling efficiency. The heat-generating components are efficiently cooled by air, so that the host end remains in the high-performance operation mode.

[0135] In an optional implementation, when entering the low-performance operating mode, the lifting mechanism does not move, the back cover remains in the closed position, and the system temperature is high. In order to protect the internal components of the host from heat damage and the user's high-temperature usage experience, the system adopts a low-performance operating mode with limited frames and frequencies to reduce the heat generated by the heating elements to lower the temperature.

[0136] In a second aspect, an embodiment of the present application provides an electronic device, including a host end, the host end includes the above-mentioned shell assembly and a display screen, the display screen is arranged on the front side of the shell, the bracket and the back cover are both arranged on the back side of the shell, and the heating element is arranged between the shell and the back cover.

[0137] The electronic device provided in the embodiment of the present application sets the housing assembly as a relatively movable structure, that is, the back cover can move relative to the shell, so that the back cover can switch between the closed position and the raised position. The display screen in the host end is arranged on the shell to display information, and the heating element is arranged between the shell and the back cover. When the back cover is switched to the raised position, the volume of the heat dissipation channel between the back cover and the shell is large, and the air cooling resistance of the heat dissipation channel is small, which can improve the air cooling efficiency and facilitate the efficient heat dissipation of the heating element. The bracket provides a supporting function for the housing assembly so that the display screen is supported. When the host end is not used or the efficient heat dissipation of the heating element is not required, the back cover is switched to the closed position, and the back cover is stacked on the shell. The stacked shell and back cover are thin and portable as a whole. The movement of the back cover relative to the shell is realized by the lifting mechanism, and the switching of the back cover between the closed position and the raised position is realized, thereby improving the user experience.

[0138] In an optional implementation, the housing may include a middle frame and a rear housing fixed to the back of the middle frame, and devices such as a battery, a circuit board, and a sensor may be disposed between the middle frame and the rear housing. The rear cover may be disposed on the back of the middle frame and serve as a component that can move relative to the middle frame. Devices such as a circuit board, a sensor, and a processor may be accommodated between the housing and the rear cover. The bracket may be disposed at a position corresponding to the rear housing.

[0139] In an optional implementation, the housing and the back cover may be roughly plate-shaped, such as a roughly rectangular plate-shaped structure. The stacked housing and the back cover are thin plate structures with a relatively small overall thickness.

[0140] In an optional implementation, when the rear cover is rotatably connected to the back of the housing, the spacing between different areas of the rear cover and the housing in the raised position increases to varying degrees compared to when the rear cover is in the closed position.

[0141] In an optional implementation, when the back cover moves linearly along the thickness direction of the shell to connect to the back of the shell, compared with the back cover being in the closed position, the distance between the back cover and the shell in each area in the raised position increases to approximately the same extent.

[0142] In an optional implementation, the heat dissipation channel has an air inlet and an air outlet, which realizes the air inlet and outlet of the heat dissipation channel, and cools the heat-generating components inside the housing assembly. The air inlet and the air outlet can be arranged on the housing or the back cover of the housing assembly, so that the airflow enters the heat dissipation channel from the air inlet, passes through the heat-generating components in the heat dissipation channel to take away the heat, and then is discharged through the air outlet.

[0143] In an optional implementation, the host side can be set to a high-performance operation mode and a low-performance operation mode. When the host side adopts the high-performance operation mode, the operating frequency of the processor and the frame rate of the picture are relatively high. The back cover is switched to the raised position, and a heat dissipation channel with a small air-cooling internal resistance is formed between the outer shell and the back cover, which is conducive to the heat convection of the air around the heating element, thereby achieving efficient heat dissipation of the heating element. When the host side adopts the low-performance operation mode, the host side is frequency-limited and frame-limited, and the operating frequency of the processor and the frame rate of the picture are relatively low.

[0144] In an optional implementation, the bracket and the shell are movably connected so that the bracket can be stacked on the back of the shell. The bracket is integrally arranged on the shell for easy use.

[0145] In an optional implementation, the bracket and the housing are detachably connected, and the bracket can be directly separated from the housing. The bracket and the housing are detachably connected by a buckle, and the back of the housing is provided with a plurality of slots spaced at predetermined angles, and the bracket has a buckle. When the buckle is connected to different slots, the bracket can be connected to the housing at different angles, thereby meeting the multi-angle support of the housing.

[0146] In an optional implementation, a keyboard is also included, and the host end and the keyboard end are detachably connected. When the host end and the keyboard end are connected, information is input through the keyboard end, and the information is displayed on the display screen of the host end, realizing a usage mode similar to that of a laptop computer. After the host end and the keyboard end are detached, the host end can be used as an independent device, realizing a usage mode similar to that of a tablet computer.

[0147] In an optional implementation, the host side may include a display screen, a battery, a processor, etc. The display screen may be configured with a touch layer for detecting touch operations, thereby forming a touch display screen.

[0148] In an optional implementation, the host side is also provided with contacts or connector interfaces that match the external device, such as spring pins, universal serial bus and other connector interfaces, to achieve wired connection between the host side and the external device. The host side can also be provided with modules such as Bluetooth and Wi-Fi to achieve wireless connection between the host side and the external device.

[0149] In an optional implementation, the keyboard end may include a keyboard part and a support part. The keyboard part is arranged on the support part, and can provide a keyboard input function for the host end. The support part has a supporting function for the host end. The support part is placed on a supporting surface, the end of the housing in the host end is supported on the support part, and the bracket is supported on the supporting surface, so that the host end can be stably supported, and a usage mode similar to that of a laptop computer can be realized.

[0150] In an optional implementation, a touch control unit may be provided on the support unit to provide a touch input function. A battery may be provided in the support unit to supply power to components such as the keyboard unit and the touch control unit.

[0151] In an optional implementation, a wireless connection can be used between the host side and the keyboard side, and the host side and the keyboard side can be used at a certain distance without connecting the host side and the keyboard side, so that users have a variety of usage methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0152] Figure 1 A schematic diagram of the structure of a host terminal in an electronic device provided in an embodiment of the present application;

[0153] Figure 2 for Figure 1 A schematic diagram of the structure of the host end when the rear cover and the bracket are both stacked on the housing;

[0154] Figure 3 for Figure 1 A schematic diagram of the structure of the host end when the rear cover is raised and the bracket is opened;

[0155] Figure 4 (a) to (c) are Figure 1 A side view of the host end when the back cover and the bracket are both stacked on the housing, a side view when the back cover is raised and the bracket is opened at a small angle, and a side view when the back cover is raised and the bracket is opened at a large angle;

[0156] Figure 5 for Figure 2 The three-dimensional exploded view of the host side;

[0157] Figure 6 (a) to (c) are respectively a side view of a host end provided by another embodiment of the present application when the back cover and the bracket are both stacked on the housing, a side view when the back cover is raised and the bracket is opened at a small angle, and a side view when the back cover is raised and the bracket is opened at a large angle;

[0158] Figure 7 A schematic diagram of the structure of a host end and a keyboard end in an electronic device provided in an embodiment of the present application;

[0159] Figure 8 for Figure 2 A partial side view of the host end at the support shaft;

[0160] Fig. 9 for Figure 3 A partial side view of the host end at the support shaft;

[0161] Fig.10 for Figure 5 A three-dimensional exploded view of a rear cover shaft assembly in a host end;

[0162] Fig.11 for Fig.10 An assembly diagram of a rear cover shaft assembly;

[0163] Fig.12 (a) and (b) are schematic diagrams of the structure in which the movable parts in the rear cover shaft assembly rotate to different positions relative to the base;

[0164] Fig.13 for Figure 3 A partial cross-sectional view of the host end along line AA;

[0165] Fig.14 A schematic diagram of the structure of a host terminal in an electronic device provided in another embodiment of the present application;

[0166] Fig.15 for Figure 5 A schematic diagram of the structure of the support shaft assembly in the host end;

[0167] Fig.16 for Fig.15 A schematic diagram of the structure of the support shaft assembly when the rotating member rotates to a predetermined position relative to the fixed seat;

[0168] Fig.17 for Fig.15 A three-dimensional exploded view of a bracket shaft assembly;

[0169] Fig.18 for Figure 3 A schematic diagram of the structure of the host end when the bracket is opened relative to the housing;

[0170] Fig.19 (a) to (c) are Fig.15 A schematic diagram of the structure of the support shaft assembly when the rotating member rotates to different positions;

[0171] Fig. 20 for Fig.15 A front view of the bracket shaft assembly;

[0172] Fig.21 for Fig. 20 A cross-sectional view of the support shaft assembly along line BB;

[0173] Fig. 22 for Fig.16 A cross-sectional view of the support shaft assembly along line CC;

[0174] Fig.23 for Figure 5 A schematic diagram of the assembly of the lifting mechanism, the support shaft assembly and the housing in the host end;

[0175] Fig.24 for Fig.23 A three-dimensional exploded view of the lifting mechanism;

[0176] Fig.25 for Figure 2 A partial cross-sectional view of the host end along line DD;

[0177] Fig.26 for Figure 3 A partial cross-sectional view of the host end along line EE;

[0178] Fig. 27 (a) and (b) are Fig.25 and Fig.26 A schematic diagram of the structure of the swing member in the lifting mechanism;

[0179] Fig.28 A schematic diagram of the structure of a host terminal in an electronic device provided in another embodiment of the present application;

[0180] Fig.29 A schematic diagram of the structure of a host terminal in an electronic device provided in another embodiment of the present application;

[0181] Fig.30 for Fig.29 A schematic diagram of the structure of the host end when the back cover is removed;

[0182] Fig.31 for Fig.30 Schematic diagram of the assembly of the lifting mechanism and the housing;

[0183] Fig.32 for Fig.31 A three-dimensional exploded view of the lifting mechanism and the housing;

[0184] Fig.33 for Fig.32 A three-dimensional exploded view of the lifting mechanism;

[0185] Fig.34 for Fig.29 A schematic diagram of the structure of the host end with the rear cover in a closed position;

[0186] Fig.35 for Fig.29 A schematic diagram of the structure of the host end with the rear cover in the raised position;

[0187] Fig.36 A schematic diagram of the structure of a host terminal in an electronic device provided in another embodiment of the present application;

[0188] Fig.37 for Fig.36 The three-dimensional exploded view of the host side;

[0189] Fig.38 for Fig.37 A schematic diagram of the assembly of the housing and the lifting mechanism in the host end;

[0190] Fig.39 for Fig.37 A three-dimensional exploded view of the lifting mechanism;

[0191] Fig.40 A schematic diagram of the structure of a host terminal in an electronic device provided in another embodiment of the present application;

[0192] Fig.41 This is a schematic diagram of the structure of the air-cooling heat dissipation module in the host end of the embodiment of the present application;

[0193] Fig.42 A schematic diagram of the assembly of the air-cooling heat dissipation module and the housing provided in the embodiment of the present application when the rear cover is raised;

[0194] Fig.43 A schematic diagram of the assembly of an air-cooling heat dissipation module and a housing provided by another embodiment of the present application when the rear cover is lifted;

[0195] Fig.44 for Figure 1 The three-dimensional exploded view of the host side;

[0196] Fig.45 for Fig.44 The enlarged view of F;

[0197] Fig.46 The operation flow chart of the host side provided in the embodiment of the present application.

[0198] Description of reference numerals:

[0199] 1-electronic device; 1000-host terminal;

[0200] 100-housing assembly; 101-heat dissipation channel;

[0201] 110-housing; 110a-front; 110b-back; 110c-inner side; 111-middle frame; 111a-strip groove; 112-rear housing; 113-second plate; 114-second edge wall; 1141-third side wall; 1141a-second air inlet; 1142-fourth side wall; 1142a-second air outlet; 1143-second baffle wall;

[0202] 120-rear cover; 120a-rotation axis; 121-locking member; 120b-gap; 120c-pivot end; 120d-free end; 120e-inner side; 122-first plate; 123-first edge wall; 1231-first side wall; 1231a-first air inlet; 1232-second side wall; 1232a-first air outlet; 1233-first baffle wall;

[0203] 130-lifting mechanism; 131-swinging member; 131a-first end; 131b-second end; 131c-rotation axis; 1311-guide groove; 1311a-climbing section; 1311b-holding section; 1311c-dummy section; 1312-fixed shaft; 1313-support seat; 1313a-mounting hole; 132-connecting rod; 1321-sliding shaft; 1322-first connecting ear; 1323-second connecting ear;

[0204] 133-rotating driving member; 134-first transmission assembly; 134a-input end; 134b-output end; 1341-worm gear assembly; 1341a-worm; 1341b-worm wheel; 1342-gear rack assembly; 1342a-first gear; 1342b-second gear; 1342c-rack; 1342d-first groove; 1342e-first guide rod; 1343-slideway assembly; 1343a-first slide rod; 1343b-first sliding member; 1343c-first slideway; 1343d-first end; 1343e-second end; 1344-gear box; 1344a-seat; 1344b-cover;

[0205] 135-sliding key; 136-second transmission assembly; 136a-input end; 136b-output end; 1361-second sliding rod; 1362-second sliding member; 1362a-second sliding groove; 1362b-first end; 1362c-second end; 1362d-second guide rod; 137-connecting structure; 1371-second groove;

[0206] 140- bracket; 140a- rotation axis; 150- rear cover rotation axis assembly; 151- base; 1511- first arc portion; 152- movable part; 1521- second arc portion; 152a- rotation axis; 160- scissor mechanism;

[0207] 170-bracket shaft assembly; 171-fixing seat; 1711-main body; 1711a-fourth arc structure; 1711b-fourth limiting portion; 1711c-limiting groove; 1712-accessory part; 1712a-rotation axis; 1712b-second arc structure; 1712c-third arc structure; 1712d-second limiting portion; 1712e-third limiting portion; 172-rotating member; 172a-rotation axis; 1721-rotating part; 1721a -first arc structure; 1721b-first limit portion; 1721c-connecting hole; 1722-mounting portion; 173-torsion connector; 173a-first end; 173b-second end; 173c-rotation axis; 1731-connecting shaft; 1732-through hole; 1733-torsion bag; 1734-notch; 174-torsion sliding member; 1741-pin shaft; 1741a-profile segment; 175-connecting portion; 1751-rectangular parallelepiped portion; 1751a-profile hole;

[0208] 180-air cooling module; 181-fin heat sink; 182-fan; 183-heating element; 183a-evaporation zone; 183b-condensation zone; 190-temperature sensor;

[0209] 200-display screen; 300-heating element; 310-circuit board assembly;

[0210] 2000-keyboard end; 2001-keyboard part; 2002-support part; 2003-touch part. DETAILED DESCRIPTION

[0211] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. Although the description of the present application will be introduced in conjunction with some embodiments, this does not mean that the features of this application are limited to the implementation mode. On the contrary, the purpose of combining the implementation mode as an application introduction is to cover other options or modifications that may be extended based on the claims of the present application. In order to provide a deep understanding of the present application, many specific details will be included in the following description. The present application can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present application, some specific details will be omitted in the description. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0212] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0213] It should be understood that in the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0214] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0215] In the embodiments of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0216] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear at different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0217] There are some heating components (such as central processing units, graphics processing units, etc.) inside the two-in-one electronic devices of the related technology. These heating components will generate high heat when working. The heat dissipation components can be configured to dissipate the heat of these heating components to meet the normal operation of the electronic equipment and achieve a comfortable user experience. At present, the thermal design power (TDP) of two-in-one electronic devices is insufficient, which will limit the improvement of the working performance of electronic devices. Among them, the thermal design power refers to the indicator of heat release when the processor reaches the maximum load, and the unit is watt (W). It is the maximum limit that the heat dissipation component must be able to dissipate the heat, but it is not the power of the processor to release heat.

[0218] With the improvement of the working performance of electronic devices and the popularization of WOA, the heat generated by the heating components inside the devices is increasing, and accordingly, more efficient heat dissipation solutions are needed. Among them, the full name of WOA is Windows on ARM, which refers to the introduction of Microsoft Windows operating system to laptops and tablets driven by ARM processors.

[0219] The current two-in-one electronic devices use air cooling modules to achieve efficient heat dissipation, and the thermal design power consumption is 10 watts to 18 watts, which cannot meet the needs of users who have high performance requirements for the device. If you want to further improve the performance of the device, you can use a high-performance processor, but a high-performance processor will generate more heat, so you need to increase the thermal design power consumption (for example, greater than or equal to 30 watts).

[0220] In conventional technology, efficient heat dissipation can be achieved by increasing the thickness of the host body and reducing the internal resistance of air cooling, but this solution is not conducive to the requirements of lightness and portability of the body. Alternatively, efficient heat dissipation can be achieved by increasing the area of ​​the air inlet and outlet holes of the body and improving the air inlet and outlet efficiency, which will affect the product appearance of the body. In addition, the use of other new heat dissipation solutions requires a long design and verification process.

[0221] In order to solve the technical problem that the host end of the two-in-one electronic device in the related art is difficult to have both a light and thin body and efficient heat dissipation of the heating element, refer to Figures 1 to 3 The present application embodiment provides an electronic device 1, including a host end 1000, the host end 1000 includes a housing assembly 100 and a display screen 200, combined with Figure 4In (a) to (c), the housing assembly 100 includes a housing 110, a rear cover 120, a lifting mechanism 130 and a bracket 140. The display screen 200 is disposed on the front 110a of the housing 110, the bracket 140 and the rear cover 120 are both disposed on the rear 110b of the housing 110, and the heating element 300 is disposed between the housing 110 and the rear cover 120. The rear cover 120 is movably mounted on the housing 110 so that the rear cover 120 can be switched between a closed position and a raised position. Figure 2 , Figure 4 In (a), when the rear cover 120 is in the closed position, the rear cover 120 and the housing 110 are overlapped. Figure 3 , Figure 4 In (b) and (c), when the rear cover 120 is in the raised position, the rear cover 120 and the housing 110 are separated, and a heat dissipation channel 101 for air cooling and heat dissipation of the heating element 300 is formed between the housing 110 and the rear cover 120. The lifting mechanism 130 is provided on the housing 110, and is used to drive the rear cover 120 to switch between the closed position and the raised position.

[0222] The host end 1000 can be set as a tablet computer, a personal digital assistant (PDA), etc. The housing assembly 100 serves as a mounting carrier for the display screen 200, the processor and other devices, and also as an appearance structural part. The heating element 300 (such as a central processing unit, a graphics processor) is arranged between the housing 110 and the back cover 120. The heating element 300 generates a certain amount of heat when working, and the heat can be dissipated by heat conduction and heat convection.

[0223] The front side 110a and the back side 110b of the housing 110 are opposite sides. The front side 110a of the housing 110 may be provided with a display screen 200 for displaying information. Figure 3 , Figure 5 The housing 110 may include a middle frame 111 and a rear housing 112 fixed to the back of the middle frame 111, and devices such as batteries, circuit boards, and sensors may be disposed between the middle frame 111 and the rear housing 112. The rear cover 120 may be disposed on the back of the middle frame 111 and serve as a component that can move relative to the middle frame 111. Devices such as circuit boards, sensors, and processors may be accommodated between the housing 110 and the rear cover 120. The bracket 140 may be disposed at a position corresponding to the rear housing 112.

[0224] The housing 110 and the back cover 120 may be substantially plate-shaped, such as a substantially rectangular plate-shaped structure. Figure 2 , Figure 4 In (a), the stacked housing 110 and the back cover 120 are thin plate structures with a relatively small overall thickness. Figure 4In (b), the state in which the back cover 120 and the outer shell 110 are separated from each other is that the back cover 120 moves away from the outer shell 110 (for example, rotates or moves linearly) to a predetermined position from the state in which the back cover 120 and the outer shell 110 are overlapped, and the distance between the back cover 120 and the outer shell 110 increases, so that the space volume between the outer shell 110 and the back cover 120 increases.

[0225] See also Figure 4 When the rear cover 120 is rotatably connected to the back side 110b of the housing 110, the distances between the rear cover 120 and the housing 110 in the raised position increase to different degrees compared to when the rear cover 120 is in the closed position. Figure 4 As shown in (a) of FIG. 1 , when the rear cover 120 is in the closed position and overlapped with the housing 110, the thickness of the host end 1000 is X. Figure 4 As shown in (b) and (c) of FIG. 1 , when the rear cover 120 is in the raised position and opened relative to the housing 110 , a gap X′ is formed between the rear cover 120 and the housing 110 .

[0226] See also Figure 6 When the rear cover 120 moves linearly along the thickness direction of the housing 110 to connect to the back side 110b of the housing 110, the distance between the rear cover 120 and the housing 110 in the raised position increases to approximately the same degree compared to when the rear cover 120 is in the closed position. Figure 6 As shown in (a) of FIG. 1 , when the rear cover 120 is in the closed position and overlapped with the housing 110, the thickness of the host end 1000 is X. Figure 6 As shown in (b) and (c) of FIG. 1 , when the rear cover 120 is in the raised position and is opened relative to the housing 110 , a gap X′ is formed between the rear cover 120 and the housing 110 .

[0227] The heat dissipation channel 101 has an air inlet and an air outlet, which realize the air inlet and outlet of the heat dissipation channel 101, and the heat dissipation of the heating element 300 inside the housing assembly 100. The air inlet and the air outlet can be set on the shell 110 or the back cover 120 of the housing assembly 100, so that the airflow enters the heat dissipation channel 101 from the air inlet, takes away the heat from the heating element 300 in the heat dissipation channel 101, and then is discharged through the air outlet.

[0228] The electronic device 1 provided in the embodiment of the present application has the housing assembly 100 configured as a relatively movable structure, that is, the back cover 120 can move relative to the housing 110, so that the back cover 120 can switch between a closed position and a raised position. The display screen 200 in the host end 1000 is arranged on the housing 110 to display information, and the heating element 300 is arranged between the housing 110 and the back cover 120. Figure 3 , Figure 4As shown in (b) and (c) of FIG. 1 , when the rear cover 120 is switched to the raised position, the heat dissipation channel 101 between the rear cover 120 and the housing 110 has a larger volume, and the air cooling resistance of the heat dissipation channel 101 is smaller, which can improve the air cooling efficiency and facilitate the efficient heat dissipation of the heating element 300. The bracket 140 provides a supporting function for the housing assembly 100, so that the display screen 200 is supported. Figure 2 , Figure 4 As shown in (a), when the host end 1000 is not in use or the heat dissipation of the heating element 300 is not required, the back cover 120 is switched to the closed position, and the back cover 120 is stacked on the outer shell 110. The stacked outer shell 110 and the back cover 120 are light and portable as a whole. The lifting mechanism 130 is used to realize the movement of the back cover 120 relative to the outer shell 110, and the back cover 120 is switched between the closed position and the lifted position, thereby improving the user experience.

[0229] When setting the host end 1000, the host end 1000 can be set to a high-performance operation mode and a low-performance operation mode. When the host end 1000 adopts the high-performance operation mode, the operating frequency of the processor and the frame rate of the screen operation are high, providing a smooth system operation environment, and the heat generation of the processor and other heat generating components 300 is high. Figure 3 , Figure 4 As shown in (b) and (c), the back cover 120 is switched to the raised position, and a heat dissipation channel 101 with a small air-cooling internal resistance is formed between the housing 110 and the back cover 120, which is beneficial to the heat convection of the air around the heating element 300, and realizes efficient heat dissipation of the heating element 300. While meeting the high-performance operation of the host end 1000, the user will not feel excessively high temperatures, and the user experience is better. When the host end 1000 adopts the low-performance operation mode, the host end 1000 is frequency-limited and frame-limited, the operating frequency of the processor and the picture running frame rate are low, and the system operating environment is poor, which can only meet the general use needs of users, and the user experience is poor.

[0230] There are multiple optional implementations for connecting the bracket 140 and the housing 110. The first connection method between the bracket 140 and the housing 110: Figure 2 , Figure 3 The bracket 140 and the housing 110 are movably connected, so that the bracket 140 can be stacked on the back side 110b of the housing 110. The bracket 140 is integrally arranged on the housing 110, which is convenient to use. Exemplarily, the bracket 140 is rotatably connected to the housing 110. When the rear cover 120 is switched to the closed position, the bracket 140 is stacked on the housing 110, and the stacked housing 110, the rear cover 120 and the bracket 140 have a thin and light appearance that is roughly plate-shaped.

[0231] The second connection method between the bracket 140 and the housing 110: the bracket 140 and the housing 110 are detachably connected, and the bracket 140 can be directly separated from the housing 110. Exemplarily, the bracket 140 and the housing 110 are detachably connected by a buckle, and the back 110b of the housing 110 is provided with a plurality of slots spaced at predetermined angles, and the bracket 140 has a buckle. When the buckle is snapped into different slots, the bracket 140 is connected to the housing 110 at different angles, so as to meet the multi-angle support of the housing 110. When the back cover 120 is switched to the closed position, the bracket 140 is separated from the housing 110 or overlapped on the housing 110, and the overlapped housing 110 and the back cover 120 have a thin and light appearance that is roughly plate-shaped.

[0232] In order to configure the keyboard input function for the host 1000, in some embodiments, refer to Figure 7 , and also includes a keyboard end 2000, and the host end 1000 and the keyboard end 2000 are detachably connected. When the host end 1000 and the keyboard end 2000 are connected, information is input through the keyboard end 2000, and the display screen 200 of the host end 1000 displays the information, realizing a usage mode similar to that of a laptop computer. After the host end 1000 and the keyboard end 2000 are detached, the host end 1000 can be used as an independent device, realizing a usage mode similar to that of a tablet computer.

[0233] The host end 1000 may include a display screen 200, a battery, a processor, etc. The display screen 200 may be configured with a touch layer (such as a capacitive touch sensor) for detecting touch operations, thereby forming a touch display screen. The host end 1000 is also provided with contacts or connector interfaces that match the external device, such as a pogo pin, a universal serial bus (USB), and other connector interfaces to achieve a wired connection between the host end 1000 and the external device. The host end 1000 may also be provided with modules such as Bluetooth and Wi-Fi to achieve a wireless connection between the host end 1000 and the external device.

[0234] See also Figure 7 , the keyboard end 2000 may include a keyboard part 2001 and a support part 2002. The keyboard part 2001 is arranged on the support part 2002, and can provide a keyboard input function for the host end 1000. The support part 2002 has a supporting function for the host end 1000. The support part 2002 is placed on a supporting surface (such as a desktop), the end of the shell 110 in the host end 1000 is supported on the support part 2002, and the bracket 140 is supported on the supporting surface, so that the host end 1000 can be stably supported and a usage mode similar to that of a laptop computer can be achieved. A touch part 2003 can also be arranged on the support part 2002, which can provide a touch input function. A battery can be arranged in the support part 2002 to power components such as the keyboard part 2001 and the touch part 2003.

[0235] The host end 1000 and the keyboard end 2000 can be connected wirelessly, and the host end 1000 and the keyboard end 2000 can be used at a certain distance. There is no need to connect the host end 1000 and the keyboard end 2000, so that users have a variety of usage methods.

[0236] See also Figures 1 to 5 The embodiment of the present application provides a housing assembly 100, comprising: a housing 110, a rear cover 120, a lifting mechanism 130 and a bracket 140. The rear cover 120 is movably mounted on the housing 110 so that the rear cover 120 can switch between a closed position and a raised position. A heating element 300 can be arranged between the housing 110 and the rear cover 120. Figure 4 In (a), when the rear cover 120 is in the closed position, the rear cover 120 and the housing 110 are overlapped. Figure 4 In (b) and (c), when the rear cover 120 is in the raised position, the rear cover 120 and the housing 110 are separated, and a heat dissipation channel 101 for air cooling and heat dissipation of the heating element 300 is formed between the housing 110 and the rear cover 120. The lifting mechanism 130 is provided on the housing 110, and is used to drive the rear cover 120 to switch between the closed position and the raised position. The bracket 140 is connected to the housing 110.

[0237] The housing assembly 100 can be applied to the host end 1000 of the two-in-one electronic device 1 as a mounting carrier for devices such as a display screen 200 on the host end 1000. The display screen 200 can be set on the housing 110. Devices such as circuit boards, sensors, and processors can be accommodated between the housing 110 and the back cover 120. The heating element 300 (such as a central processing unit, a graphics processor) can be set between the housing 110 and the back cover 120.

[0238] The housing assembly 100 provided in the embodiment of the present application is configured as a relatively movable structure, that is, the back cover 120 can move relative to the outer shell 110, so that the back cover 120 can switch between the closed position and the raised position. The heating element 300 is arranged between the outer shell 110 and the back cover 120. When the back cover 120 is switched to the raised position, the heat dissipation channel 101 between the back cover 120 and the outer shell 110 has a larger volume, and the air cooling resistance of the heat dissipation channel 101 is smaller, which can improve the air cooling heat dissipation efficiency and facilitate the efficient heat dissipation of the heating element 300. The bracket 140 provides a supporting function for the housing assembly 100. When there is no need to efficiently dissipate heat for the heating element 300, the back cover 120 is switched to the closed position, and the back cover 120 is stacked on the outer shell 110. The stacked outer shell 110 and the back cover 120 are thin and portable as a whole. The lifting mechanism 130 enables the rear cover 120 to move relative to the housing 110, thereby enabling the rear cover 120 to switch between a closed position and a lifted position, thereby improving the user experience.

[0239] There are many optional implementations for realizing that the back cover 120 is movably mounted on the housing 110. For example, Figure 4 As shown, the rear cover 120 is rotatably connected to the housing 110; or, as shown Figure 6 As shown, the rear cover 120 is connected to the housing 110 so as to be linearly movable.

[0240] These methods can realize the movement of the rear cover 120 relative to the housing 110, so that the rear cover 120 can be switched between the closed position and the raised position. Figure 4 (b) and (c) in Figure 6 As shown in (b) and (c) of FIG. 1 , when the rear cover 120 is switched to the raised position, the space between the housing 110 and the rear cover 120 has a larger volume, so that the air cooling internal resistance is smaller, which is conducive to efficient air cooling and heat dissipation of the heating element 300 between the housing 110 and the rear cover 120. Figure 4 (a) Figure 6 As shown in (a), when the housing 110 is switched to the closed position, the housing 110 and the rear cover 120 are arranged close to each other, the overall structural thickness of the housing assembly 100 is relatively small, and the heating element 300 between the housing 110 and the rear cover 120 can achieve heat dissipation through heat conduction (and heat convection). Compared with the rear cover 120 and the housing 110 in the closed position, the heat dissipation channel 101 with a larger volume between the rear cover 120 and the housing 110 in the raised position has a smaller air cooling internal resistance and a better heat dissipation effect.

[0241] When the rear cover 120 and the bracket 140 are arranged on the housing 110, refer to Figure 2 , Figure 4 In (a), the rear cover 120 and the bracket 140 are located on the same side of the housing 110; when the rear cover 120 is in the closed position, the bracket 140 can be stacked on the housing 110 so that the rear cover 120 and the bracket 140 are flush. The rear cover 120 and the bracket 140 are arranged flush on the same side of the housing 110, so that the housing assembly 100 presents a thinner structure with a better appearance.

[0242] When the housing 110, the back cover 120 and the bracket 140 are all roughly plate-shaped, the back cover 120 and the bracket 140 are set to a size that matches the housing 110. When the back cover 120 and the bracket 140 are both stacked on the housing 110, the back cover 120 and the bracket 140 do not exceed the edge range of the housing 110. The housing assembly 100 has an appearance similar to that of a tablet computer, and is used in tablet computer mode. When applied to the host end 1000 of the two-in-one electronic device 1, refer to Figures 1 to 3The display screen 200 is disposed on the front side 110a of the housing 110, and the rear cover 120 and the bracket 140 are disposed on the rear side 110b of the housing 110. By adjusting the position of the bracket 140 relative to the housing 110, the host end 1000 can switch between the laptop mode and the tablet mode.

[0243] When the rear cover 120 and the bracket 140 are arranged on the housing 110, in some embodiments, refer to Figure 2 , Figure 8 , Fig. 9 The rear cover 120 is rotatably connected to the housing 110, the bracket 140 is rotatably connected to the housing 110, the rear cover 120 and the bracket 140 are located on the same side of the housing 110, and the rotation axis 120a of the rear cover 120 and the rotation axis 140a of the bracket 140 are parallel and are located in the middle of the housing 110. Figure 8 As shown, the bracket 140 is stacked on the housing 110, the angle between the bracket 140 and the housing 110 is 0°, and the rear cover 120 is stacked on the housing 110 in a closed position. Fig. 9 As shown, the bracket 140 is open, and the angle between the bracket 140 and the housing 110 is a°; the back cover 120 is in the raised position, and the angle between the back cover 120 and the housing 110 is b°.

[0244] The middle of the housing 110 is any position between the two opposite ends of the housing 110, and is not limited to the absolute middle position of the housing 110. The rotation axis 120a of the rear cover 120 and the rotation axis 140a of the bracket 140 can be close to each other, and the two axes are approximately coincident. The rotation axis 120a of the rear cover 120 and the rotation axis 140a of the bracket 140 can also be separated by a predetermined distance.

[0245] The rotation axis 120a of the rear cover 120 and the rotation axis 140a of the bracket 140 are arranged in the middle of the same side of the housing 110. Figure 4 When the back cover 120 and the bracket 140 are both rotated relative to the housing 110, the back cover 120 and the bracket 140 are similar to the opening and closing movement of the two wings of a butterfly. When the back cover 120 and the bracket 140 are respectively opened at a certain angle relative to the housing 110, the back cover 120 and the bracket 140 are similar to the shape of the two wings of a butterfly spreading out. When the back cover 120 is switched from the closed position to the raised position, the back cover 120 rotates around the rotation axis 120a by a predetermined angle (such as 2° to 10°, etc.), increasing the volume of the space between the back cover 120 and the housing 110, facilitating heat convection around the back cover 120, and realizing efficient air cooling and heat dissipation of the heating element 300 between the housing 110 and the back cover 120. By adjusting the angular position of the bracket 140 relative to the housing 110, the bracket 140 is in an unfolded state, and the ends of the bracket 140 and the housing 110 away from the back cover 120 are used as supporting parts to realize the supporting function of the housing assembly 100.

[0246] When the rear cover 120 is rotatably connected to the housing 110 , it can be realized by using a virtual axis rotation shaft or a physical axis rotation shaft.

[0247] In some embodiments, see Figure 5 , Figures 10 to 12 The rear cover 120 and the housing 110 are rotatably connected via a rear cover shaft assembly 150, which includes a first arc-shaped portion 1511 disposed on the housing 110 and a second arc-shaped portion 1521 disposed on the rear cover 120. Figures 11 to 13 The axis of the first arc portion 1511 coincides with the axis 152a of the second arc portion 1521 (ie, the rotation axis 120a of the rear cover 120 ), and the first arc portion 1511 and the second arc portion 1521 are slidably matched to enable the rear cover 120 to be rotatably connected to the housing 110 .

[0248] The first arc portion 1511 is provided on the housing 110, and the second arc portion 1521 is provided on the back cover 120. The first arc portion 1511 and the second arc portion 1521 can be understood as an arc wall and an arc groove that are slidably matched, and the axes 152a of the arc wall and the arc groove coincide with each other. One of the arc portions of the first arc portion 1511 and the second arc portion 1521 is an arc wall, and the other arc portion is an arc groove. The arc wall is slidably installed in the arc groove, so that the housing 110 and the back cover 120 can be rotatably connected. The arc angles corresponding to the first arc portion 1511 and the second arc portion 1521 can be 75°, 90°, 180°, etc., without limitation.

[0249] like Figure 2 , Figure 3 As shown, the rear cover hinge assembly 150 adopts the form of a virtual axis hinge, so that the rear cover hinge assembly 150 between the outer shell 110 and the rear cover 120 will not protrude outside the outer shell 110 and the rear cover 120, and the structure has a better appearance.

[0250] When setting the rear cover shaft assembly 150, refer to Fig.10 , Fig.12 , Fig.13 The first arc portion 1511 is provided on the base 151, the second arc portion 1521 is provided on the movable member 152, the base 151 is fixed on the housing 110, and the movable member 152 is fixed on the rear cover 120. The first arc portion 1511 and the second arc portion 1521 are slidably matched, so that the movable member 152 is rotatably connected to the base 151, and the rotatable connection between the rear cover 120 and the housing 110 can be realized. In this way, each part is easy to process and assemble.

[0251] In order to ensure a stable rotation connection between the housing 110 and the rear cover 120, refer to Fig.10 , Fig.11The base 151 has two first arc-shaped portions 1511 facing each other, and the movable member 152 has two second arc-shaped portions 1521 facing each other. The two first arc-shaped portions 1511 are slidably mounted on the two second arc-shaped portions 1521 in a one-to-one correspondence, so as to realize a stable rotation connection between the housing 110 and the rear cover 120. Figure 5 By configuring a plurality of rear cover shaft assemblies 150 , the rear cover 120 can be reliably and stably rotatably connected to the housing 110 .

[0252] When the rear cover 120 and the bracket 140 are both stacked on the back side 110b of the housing 110, as shown in FIG. Fig.12 As shown in (a) of FIG. 1 , most of the structure of the movable member 152 is accommodated in the base 151, and the rotation axis 152a of the movable member 152 relative to the base 151 (i.e., the rotation axis 120a of the rear cover 120) is higher than the surface of the base 151, as shown in FIG. Figure 2 As shown, the movable part 152 and the base 151 are shielded by the back cover 120 and the bracket 140 and do not protrude outside the back cover 120 and the bracket 140. The shell assembly 100 as a whole presents a thin plate shape and has a good structural appearance.

[0253] like Fig.12 As shown in (b), the movable member 152 rotates relative to the base 151 at a predetermined angle, and part of the movable member 152 is located outside the base 151. Figure 3 The movable member 152 and the base 151 are shielded by the rear cover 120 and the bracket 140 , and will not protrude outside the rear cover 120 and the bracket 140 .

[0254] In other embodiments, the back cover 120 and the outer shell 110 are rotatably connected via a back cover hinge assembly 150. The back cover hinge assembly 150 includes a physical hinge. One of the structures of the outer shell 110 and the back cover 120 is provided with a pivot hole, and the other structure is fixed with a physical hinge. The physical hinge is rotatably connected to the pivot hole, thereby realizing the rotatable connection between the back cover 120 and the outer shell 110.

[0255] See also Figure 6 When the rear cover 120 is connected to the housing 110 in a linearly movable manner, in some embodiments, the rear cover 120 can move linearly along the thickness direction of the housing 110. When the rear cover 120 is switched from the closed position to the raised position, the rear cover 120 moves backward along the thickness direction of the housing 110 by a predetermined displacement (e.g., 5 mm to 10 mm, etc.), increasing the volume of the space between the rear cover 120 and the housing 110, facilitating heat convection around the rear cover 120, and realizing efficient heat dissipation of the heating element 300 between the housing 110 and the rear cover 120.

[0256] In addition, the back cover 120 can be arranged to move linearly at a predetermined angle relative to the surface where the outer shell 110 is located, which can also realize the movement of the back cover 120 relative to the outer shell 110.

[0257] See also Figure 6 When the rear cover 120 is connected to the housing 110 in a linearly movable manner, in some embodiments, the rear cover 120 and the housing 110 are connected via a scissor mechanism 160. The scissor mechanism 160 enables the rear cover 120 and the housing 110 to be connected in a linearly movable manner, and enables the rear cover 120 to switch between the closed position and the raised position.

[0258] For example, see Fig.14 One end of the scissor mechanism 160 is connected to the middle of the rear cover 120, and the other end is connected to the corresponding position of the housing 110, so that the rear cover 120 can stably move linearly relative to the housing 110. Each scissor mechanism 160 can be in the form of a double scissor, so that the rear cover 120 can have a large displacement relative to the housing 110.

[0259] When realizing the rotation connection between the bracket 140 and the housing 110, refer to Figure 5 , Fig.15 The bracket 140 and the housing 110 are rotatably connected via a bracket shaft assembly 170 , and the bracket shaft assembly 170 can provide a torque to make the bracket 140 suspend relative to the housing 110 .

[0260] The bracket 140 is rotatably connected to the housing 110 through the bracket shaft assembly 170, so that the user can adjust the angle between the bracket 140 and the housing 110 (for example, 0° to 160° or other ranges). The torque provided by the bracket shaft assembly 170 keeps the bracket 140 at the adjusted angle. Figure 4 Notebook computer mode as shown in (b) or Figure 4 The handwriting mode with large angle support shown in (c) also facilitates stacking the bracket 140 on the housing 110 to achieve Figure 4 Tablet mode as shown in (a).

[0261] When setting the support shaft assembly 170, a virtual shaft or a physical shaft can be used. The following mainly introduces the solution of the virtual shaft. Figures 15 to 18The support shaft assembly 170 includes a fixed seat 171 and a rotating member 172; the rotating member 172 has a first arc structure 1721a, the fixed seat 171 has a second arc structure 1712b, the axis of the first arc structure 1721a coincides with the axis of the second arc structure 1712b (i.e., the rotation axis 172a of the rotating member 172), the first arc structure 1721a and the second arc structure 1712b are slidably matched to make the rotating member 172 rotatably connected to the fixed seat 171, the fixed seat 171 is connected to the housing 110, and the rotating member 172 is connected to the support 140. The rotation axis 172a of the rotating member 172 is the rotation axis 140a of the support 140.

[0262] The first arc structure 1721a is disposed on the rotating member 172, and the second arc structure 1712b is disposed on the fixed seat 171. The first arc structure 1721a and the second arc structure 1712b can be understood as an arc wall and an arc groove that are slidably matched, and the axes of the arc wall and the arc groove coincide. One of the arc structures in the first arc structure 1721a and the second arc structure 1712b is an arc wall, and the other arc structure is an arc groove. The arc wall is slidably installed in the arc groove, so that the rotational connection between the bracket 140 and the shell 110 can be achieved. The arc angles corresponding to the first arc structure 1721a and the second arc structure 1712b can be 75°, 90°, 180°, etc., without limitation. The fixed seat 171 and the shell 110, and the rotating member 172 and the bracket 140 can be connected by fasteners or the like. Figure 2 and Figure 3 As shown, the bracket shaft assembly 170 adopts the form of a virtual axis shaft, so that the bracket shaft assembly 170 between the housing 110 and the bracket 140 will not protrude outside the rear cover 120 and the bracket 140, and the structure has a better appearance.

[0263] When setting the rotating member 172, refer to Figures 15 to 17 The rotating member 172 includes a rotating portion 1721 and a mounting portion 1722 connected to each other, and a first arc structure 1721a is disposed on the rotating portion 1721. A virtual axis rotation shaft is used to realize rotation connection between the rotating portion 1721 and the fixing seat 171. The mounting portion 1722 is fixedly connected to the bracket 140, such as a screw connection.

[0264] In order to realize a large angle (such as 100° to 160° or other ranges) rotation of the bracket 140 under the condition of a virtual axis rotation axis, in some embodiments, refer to Fig.15 , Fig.17 , Fig.19The support shaft assembly 170 includes a fixed seat 171 and a rotating member 172; the rotating member 172 has a first arc structure 1721a, the fixed seat 171 has a second arc structure 1712b, and the rotating member 172 is connected to the support 140; the fixed seat 171 includes a main body 1711 and an accessory part 1712, the accessory part 1712 has a third arc structure 1712c, the main body 1711 has a fourth arc structure 1711a, the axis of the second arc structure 1712b, the axis of the third arc structure 1712c and the fourth arc structure 1711a. The axes of the third arc structure 1712c and the fourth arc structure 1711a coincide with each other (i.e., the rotation axis 172a of the rotating member 172), the third arc structure 1712c and the fourth arc structure 1711a are slidably matched to make the accessory part 1712 rotationally connected to the main body part 1711, the main body part 1711 is fixed on the shell 110, the second arc structure 1712b is arranged on the side of the accessory part 1712 facing away from the third arc structure 1712c, and the rotating member 172 is rotationally connected to the accessory part 1712; when the rotating member 172 rotates to a predetermined angle, the accessory part 1712 rotates with the rotating member 172.

[0265] The fixed seat 171 is split into a main body portion 1711 and an accessory portion 1712. The accessory portion 1712 and the main body portion 1711 are rotationally connected by a virtual axis rotation axis. The rotating member 172 and the accessory portion 1712 are also rotationally connected by a virtual axis rotation axis. The accessory portion 1712 is configured to rotate with the rotating member 172 when the rotating member 172 rotates to a predetermined angle. In this way, the bracket 140 connected to the rotating member 172 can be rotated at a large angle, thereby preventing the rotating member 172 from being separated from the fixed seat 171 when the bracket 140 rotates at a large angle.

[0266] The matching relationship between the third arc structure 1712c and the fourth arc structure 1711a is similar to the matching relationship between the first arc structure 1721a and the second arc structure 1712b, which will not be repeated here. The first arc structure 1721a, the second arc structure 1712b, the third arc structure 1712c and the fourth arc structure 1711a have the same axis and can be arranged in sequence along the axial direction. The arc angles corresponding to the various arc structures can be 75°, 90°, 180°, etc., without limitation.

[0267] like Fig.19 In (a), the angle between the rotating member 172 and the attachment portion 1712 is 0°, and the angle between the attachment portion 1712 and the main body portion 1711 is 0°. Fig.19 In (b), the rotating member 172 rotates counterclockwise relative to the accessory portion 1712, and the accessory portion 1712 also rotates counterclockwise relative to the main body portion 1711, so the rotating member 172 opens from 0° to the middle angle a relative to the main body portion 1711, that is, the bracket 140 opens from 0° to the middle angle a relative to the housing 110. Fig.19In (c), the rotating member 172 continues to rotate counterclockwise relative to the accessory portion 1712, and the accessory portion 1712 continues to rotate counterclockwise relative to the main body portion 1711, then the rotating member 172 continues to open from the middle angle a to the maximum angle θ, that is, the bracket 140 continues to open from the middle angle a to the maximum angle θ.

[0268] When the rear cover 120 and the bracket 140 are both stacked on the back side 110b of the housing 110, Fig.15 The rotating member 172 and the accessory part 1712 are both received in the main body 1711, and the rotating member 172 is received in the accessory part 1712. Fig.19 In (a), the rotation axis 172a of the rotating member 172 coincides with the rotation axis 1712a of the attachment portion 1712 and is higher than the surface of the main body portion 1711, see Figure 2 The rotating member 172, the accessory portion 1712 and the main body portion 1711 are blocked by the rear cover 120 and the bracket 140, and do not protrude outside the rear cover 120 and the bracket 140. The shell assembly 100 as a whole presents a thin plate-like shape and has a good structural appearance.

[0269] For example, see Fig.17 , the first arc structure 1721a of the rotating member 172 is set as an arc groove, the second arc structure 1712b of the accessory part 1712 is set as an arc wall, the arc wall is embedded in the arc groove and the arc wall can slide around the arc groove, so as to realize the rotation connection between the rotating member 172 and the accessory part 1712. The third arc structure 1712c of the accessory part 1712 is set as an arc groove, and the fourth arc structure 1711a of the main body 1711 is set as an arc wall, the arc wall is embedded in the arc groove and the arc wall can slide around the arc groove, so as to realize the rotation connection between the accessory part 1712 and the main body 1711. The second arc structure 1712b and the third arc structure 1712c on the accessory part 1712, which are opposite to each other, are respectively in the form of an arc wall and an arc groove, so that the axial dimension of the accessory part 1712 can be made small and the structure is compact.

[0270] In order to realize that the attachment portion 1712 follows the rotation of the rotating member 172 when the rotating member 172 rotates to a predetermined angle, in some embodiments, refer to Fig.17The rotating member 172 has a first limiting portion 1721b, and the accessory portion 1712 has a second limiting portion 1712d circumferentially arranged opposite to the first limiting portion 1721b; when the angle between the bracket 140 and the back cover 120 is 0°, the first limiting portion 1721b and the second limiting portion 1712d are circumferentially spaced apart; during the rotation of the bracket 140, that is, during the rotation of the rotating member 172, the circumferential distance between the first limiting portion 1721b and the second limiting portion 1712d gradually decreases until the first limiting portion 1721b abuts against the second limiting portion 1712d, and the rotating member 172 will drive the accessory portion 1712 to rotate, and also prevent the rotating member 172 from separating from the accessory portion 1712.

[0271] In order to limit the maximum rotation position of the attachment portion 1712 relative to the main body portion 1711, in some embodiments, refer to Fig.17 The accessory part 1712 has a third limiting part 1712e, and the main body 1711 has a fourth limiting part 1711b circumferentially arranged opposite to the third limiting part 1712e; when the rotating member 172 drives the accessory part 1712 to rotate, the circumferential distance between the third limiting part 1712e and the fourth limiting part 1711b gradually decreases until the third limiting part 1712e abuts against the fourth limiting part 1711b, and the accessory part 1712 cannot continue to rotate, thereby limiting the maximum rotation position of the accessory part 1712 relative to the main body 1711 and preventing the accessory part 1712 from separating from the main body 1711.

[0272] When a virtual axis rotation axis is realized on the rotating member 172, the attachment part 1712 and the main body 1711, refer to Fig.17 , the first arc structure 1721a can be symmetrically arranged at the opposite ends of the rotating member 172, the second arc structure 1712b and the third arc structure 1712c can be symmetrically arranged at the opposite ends of the accessory part 1712, and the fourth arc structure 1711a can be symmetrically arranged at the opposite ends of the main body part 1711. The corresponding configuration of each arc structure makes the rotation connection between the rotating member 172 and the accessory part 1712, and the rotation connection between the accessory part 1712 and the main body part 1711 more stable and reliable. Figure 5 By configuring a plurality of bracket shaft assemblies 170 , the bracket 140 can be reliably and stably rotatably connected to the housing 110 .

[0273] In order to realize the hovering function of the bracket 140 when it is opened at any angle, in some embodiments, refer to Fig.15 , Fig.17 The support shaft assembly 170 also includes a torsion connector 173 and a torsion slide 174; Figure 20 to Figure 22The torsion connecting member 173 has a first end 173a and a second end 173b which are arranged opposite to each other. The first end 173a of the torsion connecting member 173 is rotatably connected to the rotating member 172. The rotation axis 173c of the first end 173a of the torsion connecting member 173 and the rotation axis 172a of the rotating member 172 are arranged in parallel and spaced apart. The torsion sliding member 174 is slidably installed in the limiting groove 1711c of the fixing seat 171. The second end 173b of the torsion connecting member 173 and the torsion sliding member 174 is an interference fit; during the rotation of the rotating member 172 relative to the fixed seat 171, the torque connector 173 moves with the rotating member 172, the torque sliding member 174 slides in the limiting groove 1711c following the torque connector 173, and the second end 173b of the torque connector 173 rotates relative to the torque sliding member 174. The friction between the torque sliding member 174 and the second end 173b of the torque connector 173 generates a torque that causes the rotating member 172 to suspend relative to the fixed seat 171.

[0274] The first end 173a of the torsion connector 173 is rotatably connected to the rotating member 172, the rotation axis 172a of the rotating member 172 and the rotation axis 173c of the first end 173a of the torsion connector 173 are arranged in parallel and spaced apart, the second end 173b of the torsion connector 173 and the torsion sliding member 174 are interference fit, and the torsion sliding member 174 can slide along the limiting groove 1711c of the fixed seat 171. The fixed seat 171, the rotating member 172, the torsion connector 173 and the torsion sliding member 174 can be understood as a crank slider mechanism, the fixed seat 171 is used as a fixed frame, the rotating member 172 is used as a crank, the torsion connector 173 is used as a connecting rod, and the torsion sliding member 174 is used as a slider that slides on the limiting groove 1711c of the fixed seat 171 but cannot rotate, and the interference fit between the second end 173b of the torsion connector 173 and the torsion sliding member 174 is equivalent to the rotational connection between the connecting rod and the slider.

[0275] After adjusting any angle of the rotating member 172, the friction between the second end 173b of the torque connector 173 and the torque sliding member 174, which have a tendency to rotate or rotate relative to each other, will generate torque or friction torque, so that the above-mentioned crank slider mechanism torque is balanced, the crank slider mechanism as a whole maintains the same posture, and the rotating member 172 is maintained at the adjusted angular position. When the user applies a torque to the bracket 140 connected to the rotating member 172, the rotating member 172 and the bracket 140 rotate relative to the fixed seat 171, the angular position of the bracket 140 is changed, and the crank slider mechanism as a whole changes its posture. The torque applied by the user to the bracket 140 can overcome the friction torque between the torque connector 173 and the torque sliding member 174. After adjusting the angular position of the bracket 140, the user no longer applies a torque to the bracket 140, the above-mentioned crank slider mechanism as a whole maintains a torque balance, and the bracket 140 can be maintained at the adjusted position.

[0276] In the housing assembly 100, refer to Fig.18 The rotating member 172 is connected to the bracket 140, and the fixed seat 171 is connected to the shell 110. The user can change the angular position of the rotating member 172 relative to the fixed seat 171 by adjusting the angular position of the bracket 140 relative to the shell 110, so that the rotating member 172 and the bracket 140 maintain a suspended position relative to the shell 110, thereby realizing the angle adjustment and support functions of the bracket 140.

[0277] When the torsion connector 173 is connected to the rotating member 172, refer to Fig.17 , Fig. 20 , Fig.21 The first end 173a of the torsion connector 173 is provided with a connecting shaft 1731, and the connecting shaft 1731 is rotatably connected to the connecting hole 1721c of the rotating member 172, so that the torsion connector 173 rotates around the axis of the connecting hole 1721c. By matching the connecting shaft 1731 of the torsion connector 173 and the connecting hole 1721c of the rotating member 172, the torsion connector 173 and the rotating member 172 are rotatably connected, which is easy to assemble and reliable. The first end 173a of the torsion connector 173 can be provided with a through hole 1732, and the connecting shaft 1731 and the through hole 1732 can be connected by a profile connection or the like.

[0278] Two connecting holes 1721c arranged opposite to each other can be set on the rotating member 172, and a connecting shaft 1731 is respectively provided on both sides of the first end 173a of the torsion connecting member 173. The two connecting shafts 1731 are coaxial and connected to the two connecting holes 1721c one by one, so that the torsion connecting member 173 can be stably rotated and connected to the rotating member 172, thereby improving reliability.

[0279] When the torsion connector 173 and the torsion slide 174 are connected, refer to Fig.17 , Fig.21 , Fig. 22 , the second end 173b of the torque connector 173 has a torque bag 1733, and the torque sliding member 174 includes a pin 1741. The length direction of the pin 1741 is parallel to the rotation axis 172a of the rotating member 172, and the torque bag 1733 is sleeved outside the pin 1741 and is interference fit. This method has a simple structure and is easy to assemble. When the torque bag 1733 and the pin 1741 rotate relative to each other, the inner side surface of the torque bag 1733 and the outer peripheral surface of the pin 1741 contact and rub, which can generate torque or friction torque, which is conducive to realizing the function of the rotating member 172 to keep hovering relative to the fixed seat 171. The matching part of the pin 1741 and the torque bag 1733 can be set as a round shaft, and the inner cross section of the torque bag 1733 can also be set as a circle, which is conducive to the rotation connection and friction fit between the pin 1741 and the torque bag 1733 to generate torque.

[0280] When setting the torque pack 1733 and the pin 1741, refer to Fig.17 , Fig.21 , Fig. 22 The torque pack 1733 may have a notch 1734 that runs through the axial direction of the torque pack 1733. The torque pack 1733 with the notch 1734 covers the pin 1741, and the torque pack 1733 is easy to produce elastic deformation, which is beneficial to the contact friction between the inner side surface of the torque pack 1733 and the outer peripheral surface of the pin 1741, and can generate a large torque or friction moment.

[0281] When setting the shape of the limiting groove 1711c, refer to Fig.15 , Fig.17 The limiting groove 1711c can be set as a linear groove, and the length direction of the limiting groove 1711c is perpendicular to the rotation axis 172a of the rotating member 172. The limiting groove 1711c adopts the form of a linear groove, so that when the rotating member 172 rotates relative to the fixed seat 171, the torsion connecting member 173 can follow the movement of the rotating member 172, and the torsion sliding member 174 can follow the second end 173b of the torsion connecting member 173 to slide in the limiting groove 1711c.

[0282] The extension direction of the linear groove can be set as needed, for example, the extension direction of the linear groove is parallel to the surface of the housing 110, so that the thickness of the fixing seat 171 with the limiting groove 1711c can be reduced. Fig.19 As shown in (a) and (b) in FIG. 1 , the rotating member 172 is opened from 0° to the middle angle a relative to the main body 1711, and the sliding stroke of the torsion sliding member 174 is L1. Fig.19 In (c), the rotating member 172 continues to open from the middle angle a to the maximum angle θ, and the sliding stroke of the torsion sliding member 174 is L2. In addition, the extension route of the limiting groove 1711c can also be set to an arc shape or other shapes.

[0283] In order to make the torsion sliding member 174 move smoothly relative to the fixing seat 171, in some embodiments, refer to Fig.15 , Fig.17 The limiting grooves 1711c are arranged in pairs and at intervals, and the torsion sliding member 174 includes a pin shaft 1741. The two ends of the pin shaft 1741 are respectively slidably installed in the limiting grooves 1711c arranged in pairs and at intervals, so that the torsion sliding member 174 can stably slide along the limiting grooves 1711c of the fixed seat 171. After the torsion sliding member 174 moves back and forth along the limiting grooves 1711c for many times, the extension directions of the torsion sliding member 174 and the limiting grooves 1711c remain vertical and not skewed, thereby improving the reliability of the bracket shaft assembly 170.

[0284] In order to prevent the torsion sliding member 174 from rotating when sliding on the limiting groove 1711c, in some embodiments, see Fig.15 , Fig.17 The torsion sliding member 174 is provided with a connecting portion 175, which is slidably mounted on the limiting groove 1711c, so that the torsion sliding member 174 slides along the extension route of the limiting groove 1711c. This method is easy to process and assemble parts. The two opposite side surfaces of the connecting portion 175 and the two opposite side surfaces of the limiting groove 1711c are correspondingly slidably matched, so that the torsion sliding member 174 can be reliably moved along the extension route of the limiting groove 1711c.

[0285] For example, see Fig.17 The limiting groove 1711c is a linear groove, and the connecting portion 175 includes a rectangular portion 1751. The opposite side surfaces of the rectangular portion 1751 and the opposite side surfaces of the linear groove correspond to each other in a sliding fit. The rectangular portion 1751 can slide along the length direction of the linear groove. The rectangular portion 1751 will not rotate during the sliding process, so that the torque sliding member 174 slides along the length direction of the linear groove.

[0286] When connecting the torsion slide 174 and the connecting portion 175, refer to Fig.17 The torsion sliding member 174 and the connecting portion 175 can be connected by a profile connection, that is, one of the structural members of the torsion sliding member 174 and the connecting portion 175 is provided with a profile hole 1751a, and the other structural member is provided with a profile segment 1741a, and the profile segment 1741a is inserted into the profile hole 1751a, and the torsion sliding member 174 and the connecting portion 175 are connected, and the two are relatively stationary in the circumferential direction of the torsion sliding member 174, which is convenient for parts processing and assembly.

[0287] Exemplarily, a profile segment 1741a with a rectangular cross section is provided at the end of the torsion sliding member 174, and a profile hole 1751a with a rectangular cross section is provided at the connecting portion 175. The profile segment 1741a and the profile hole 1751a are adapted to each other, and the profile segment 1741a can be inserted into the profile hole 1751a to achieve a profile connection between the torsion sliding member 174 and the connecting portion 175. In addition, a profile hole is provided at the end of the torsion sliding member 174, and a profile segment is provided on the connecting portion 175. This method can also achieve a profile connection between the torsion sliding member 174 and the connecting portion 175.

[0288] The rear cover 120 can move relative to the housing 110 by rotation or linear movement, and accordingly, the lifting mechanism 130 can drive the rear cover 120 to move in a predetermined manner. When the rear cover 120 is connected to the housing 110 in a rotational manner or the rear cover 120 is connected to the housing 110 in a linearly movable manner, the lifting mechanism 130 can drive the rear cover 120 to move relative to the housing 110 accordingly.

[0289] There are multiple optional implementations when setting the lifting mechanism 130. The first implementation of the lifting mechanism 130 is: a scheme in which the lifting mechanism 130 and the bracket 140 are linked by a rotating shaft. During the rotation of the bracket 140 relative to the housing 110, the rotating shaft of the bracket 140 moves, and the lifting mechanism 130 is linked to drive the back cover 120 to move, so that the back cover 120 switches between the closed position and the lifted position. The second implementation of the lifting mechanism 130 is: a scheme of rotating the driving member and the transmission assembly (such as electric drive), and the transmission assembly is driven by the rotating driving member to drive the back cover 120 to move, so that the back cover 120 switches between the closed position and the lifted position. The lifting mechanism 130 can be configured with a temperature sensor 190 to detect the temperature of the heating element 300 to realize the temperature-sensing self-lifting function. The third implementation of the lifting mechanism 130 is: a manual drive scheme, and the user operates to realize the switching of the back cover 120 between the closed position and the lifted position. The following introduces various implementations of the lifting mechanism 130 in turn.

[0290] The first implementation method of the lifting mechanism 130 is that the lifting mechanism 130 and the bracket 140 are linked to each other. Figures 3 to 5 The bracket 140 and the housing 110 are rotatably connected via a bracket pivot assembly 170, and the bracket pivot assembly 170 is connected to the lifting mechanism 130. The lifting mechanism 130 is configured to be driven by the bracket pivot assembly 170 during the process of the bracket 140 rotating relative to the housing 110 by a predetermined angle, so that the back cover 120 switches between the closed position and the lifted position.

[0291] The coupling movement of the back cover 120 and the bracket 140 is realized by the lifting mechanism 130. When the user rotates and opens the bracket 140 to support the host end 1000, the bracket shaft assembly 170 drives the lifting mechanism 130 to move, and the lifting mechanism 130 drives the back cover 120 to move relative to the shell 110, so that the back cover 120 is switched from the closed position to the lifted position, and a heat dissipation channel 101 with a small air-cooling internal resistance is formed between the shell 110 and the back cover 120, which can efficiently cool the heating element 300 between the shell 110 and the back cover 120. The host end 1000 opens the bracket 140 and the back cover 120 in one step, which can realize a high-performance operation mode and provide users with a convenient operation experience.

[0292] Compared to related technology laptops (such as gaming laptops) that use the rotation of the screen end shaft to drive the keyboard top cover or keyboard bottom cover to lift, the embodiment of the present application realizes the lifting function of the back cover 120 of the host end 1000 on a thin body with a tablet-like shape. The lifting mechanism 130 and the bracket 140 are coupled with the shaft for linkage, which is ingeniously designed and provides a good user operating experience.

[0293] When implementing the linkage scheme of the lifting mechanism 130 and the support shaft assembly 170, refer to Fig.15 , Fig.16The support shaft assembly 170 includes a fixed seat 171, a rotating member 172, a torsion connector 173 and a torsion slide 174. This solution can be understood as a crank slider mechanism. The first end 173a of the torsion connector 173 is rotatably connected to the rotating member 172. The rotation axis 172a of the rotating member 172 and the rotation axis 173c of the torsion connector 173 are arranged in parallel and spaced apart. The second end 173b of the torsion connector 173 and the torsion slide 174 are interference fit, and the torsion slide 174 can slide along the limiting groove 1711c of the fixed seat 171. Fig.18 The rotating member 172 is connected to the bracket 140 , the fixing seat 171 is connected to the housing 110 , and the rotating member 172 rotates relative to the fixing seat 171 , so that the bracket 140 rotates relative to the housing 110 .

[0294] See also Figure 23 to Figure 26 The lifting mechanism 130 includes a swinging member 131 and a connecting rod 132; the swinging member 131 is rotatably connected to the housing 110, and the swinging member 131 has a first end 131a and a second end 131b that are arranged opposite to each other, the first end 131a of the swinging member 131 is arranged away from the support shaft assembly 170 and connected to the rear cover 120, and the second end 131b of the swinging member 131 is arranged toward the support shaft assembly 170 and has a guide groove 1311 extending along a predetermined route; one end of the connecting rod 132 is connected to the support shaft assembly The connecting rod 132 is mounted on the torsion sliding member 174 of the component 170 to follow the movement of the torsion sliding member 174. The other end of the connecting rod 132 has a sliding shaft 1321, which is passed through the guide groove 1311 and can move along the guide groove 1311; when the bracket 140 rotates relative to the shell 110 by a predetermined angle, the connecting rod 132 follows the torsion sliding member 174 to move along the limiting groove 1711c, and the sliding shaft 1321 can drive the swinging member 131 to rotate relative to the shell 110, and the back cover 120 follows the movement of the swinging member 131.

[0295] This solution utilizes the movable torsion sliding member 174 in the bracket shaft assembly 170 when the bracket 140 rotates relative to the housing 110, and is connected to the connecting rod 132 and the swinging member 131 for movement. The movable torsion sliding member 174 drives the connecting rod 132, the swinging member 131 and the back cover 120 to move in turn, thereby achieving a linkage effect in which the back cover 120 follows the movement of the bracket 140.

[0296] See also Fig.25 , Fig.26During the process of the bracket 140 unfolding and rotating relative to the housing 110 (rotating counterclockwise in the figure), the torsion sliding member 174 slides forward in the limiting groove 1711c of the fixing seat 171 (moving downward in the figure), and the torsion sliding member 174 drives one end of the connecting rod 132 to move forward (moving downward in the figure), and the sliding shaft 1321 at the other end of the connecting rod 132 and the guide groove 1311 at one end of the swinging member 131 slide and abut with each other, and the sliding shaft 1321 drives the swinging member 131 to swing forward (rotate clockwise in the figure), so that the other end of the swinging member 131 drives the rear cover 120 to lift relative to the housing 110 until the rear cover 120 switches to the position as shown in the figure. Fig.26 Shown in raised position.

[0297] During the process of the bracket 140 being retracted and rotated relative to the housing 110 (clockwise rotation in the figure), the torsion sliding member 174 slides in the reverse direction (moves upward in the figure) in the limiting groove 1711c of the fixing seat 171, and the torsion sliding member 174 drives one end of the connecting rod 132 to move in the reverse direction (move upward in the figure), and the sliding shaft 1321 at the other end of the connecting rod 132 and the guide groove 1311 at one end of the swinging member 131 slide and abut with each other, and the sliding shaft 1321 drives the swinging member 131 to swing in the reverse direction (counterclockwise rotation in the figure), so that the other end of the swinging member 131 drives the rear cover 120 to close relative to the housing 110 until the rear cover 120 switches to the position as shown in the figure. Fig.25 Shown in closed position.

[0298] When setting the swing member 131 and the connecting rod 132, refer to Fig.24 The swing member 131 and the connecting rod 132 can be roughly set to a strip shape, which is convenient for arrangement between the housing 110 and the back cover 120, so that the thickness of the entire structure can be reduced to meet the transmission of the connecting rod 132 and the swing member 131.

[0299] When the torsion slide 174 and the connecting rod 132 are connected, refer to Fig.15 , Fig.23 The end of the connecting rod 132 and the torsion sliding member 174 can be connected through a connecting portion 175, and the connecting portion 175 is slidably mounted in the limiting groove 1711c of the fixing seat 171. The connecting portion 175 and the connecting rod 132 can be fixed by means of pin riveting or the like.

[0300] The torsion sliding member 174 has a connecting portion 175 at each end. Fig.24 The end of the connecting rod 132 close to the torsion sliding member 174 has two first connecting ears 1322 arranged at intervals, and the torsion sliding member 174 is located between the two first connecting ears 1322. The two ends of the torsion sliding member 174 correspond to the two first connecting ears 1322 one by one and are connected through different connecting parts 175, so that the torsion sliding member 174 and the connecting rod 132 are reliably connected.

[0301] When the sliding shaft 1321 is arranged on the connecting rod 132, refer to Fig.23 , Fig.24 The end of the connecting rod 132 close to the swinging member 131 has two second connecting ears 1323 arranged at intervals, the second end 131b of the swinging member 131 is located between the two second connecting ears 1323, the two ends of the sliding shaft 1321 pass through the two sides of the guide groove 1311 of the swinging member 131, and the two ends of the sliding shaft 1321 are respectively fixed on the two second connecting ears 1323, so that the connecting rod 132 and the swinging member 131 are reliably connected.

[0302] When the swing member 131 is rotatably connected to the housing 110, refer to Fig.23 , Fig.24 The housing 110 is provided with a support seat 1313, and the support seat 1313 has a mounting hole 1313a. A fixed shaft 1312 is provided at the rotation axis 131c of the swinging member 131, and the fixed shaft 1312 is passed through the mounting hole 1313a and can rotate around the axis of the mounting hole 1313a. The swinging member 131 is installed in the mounting hole 1313a of the support seat 1313 by the fixed shaft 1312, and the fixed shaft 1312 and the mounting hole 1313a are matched with the gap 120b, so that the swinging member 131 is rotatably connected to the housing 110, which is easy to assemble and has reliable connection. The swinging member 131 has coaxial fixed shafts 1312 on both sides, and the housing 110 is provided with two support seats 1313 arranged at intervals. The fixed shafts 1312 on both sides are installed in the mounting holes 1313a of the corresponding support seats 1313, so that the swinging member 131 can rotate stably.

[0303] When the swing member 131 and the rear cover 120 are connected, refer to Fig.24 , Fig.25 A locking member 121 is fixed on the rear cover 120 , and a gap 120 b is formed between the rear cover 120 and the locking member 121 for accommodating the first end 131 a of the swinging member 131 . The first end 131 a of the swinging member 131 is located between the rear cover 120 and the locking member 121 .

[0304] This method can realize that the swing member 131 and the back cover 120 are movably connected instead of being fixedly connected. The first end 131a of the swing member 131 is set in the gap 120b between the back cover 120 and the locking member 121. When the swing member 131 drives the back cover 120 to move, the first end 131a of the swing member 131 can move within the gap 120b, which meets the reliability of the connection between the swing member 131 and the back cover 120. When the swing member 131 swings, it can drive the back cover 120 to move, so that the back cover 120 can switch between the closed position and the raised position.

[0305] The locking member 121 and the rear cover 120 may be connected by means of fasteners (such as screws), and the fasteners are passed through the locking member 121 and the first end 131 a of the swing member 131 and are fixed to the rear cover 120 .

[0306] In order to make the rear cover 120 follow the movement when the bracket 140 rotates within a predetermined angle range, in some embodiments, refer to Fig. 27 In (a) and (b), the guide groove 1311 includes a climbing section 1311a and a holding section 1311b that are connected, and the climbing section 1311a and the holding section 1311b are arranged along the direction from the first end 131a to the second end 131b of the swing member 131; combined Fig.26 When the sliding shaft 1321 slides against the climbing section 1311a, the sliding shaft 1321 can drive the swinging member 131 to rotate, and the back cover 120 moves with the swinging member 131; when the sliding shaft 1321 slides against the retaining section 1311b, the swinging member 131 remains stationary relative to the back cover 120, and the back cover 120 remains in the lifted position.

[0307] The bracket 140 stacked on the housing 110 is unfolded and rotated within the first angle range, the bracket shaft assembly 170, the connecting rod 132 and the swinging member 131 are linked, and the sliding shaft 1321 of the connecting rod 132 is slidably abutted against the climbing section 1311a to drive the swinging member 131 to rotate, so as to gradually lift the back cover 120 in the closed position until the back cover 120 switches to the lifting position. When the bracket 140 exceeds the first angle range and continues to unfold and rotate within the second angle range, the sliding shaft 1321 of the connecting rod 132 is abutted against the retaining section 1311b, and the sliding shaft 1321 no longer drives the swinging member 131 to rotate, and the back cover 120 remains in the lifting position.

[0308] When the extension route of the limiting groove 1711c of the fixing seat 171 is set as a straight line, the holding section 1311b can be set as a straight line, and when the rear cover 120 is in the raised position, the extension route of the holding section 1311b is parallel to the extension route of the limiting groove 1711c.

[0309] The first angle range and the second angle range of the bracket 140 relative to the housing 110, as well as the angle between the rear cover 120 and the housing 110 when the rear cover 120 is in the raised position, are set as needed and are not specifically limited. Figure 4 As shown in (a) of FIG. 1 , when the bracket 140 is stacked on the housing 110, the angle between the bracket 140 and the housing 110 is 0°. Figure 4 As shown in (b) , the bracket 140 gradually unfolds and rotates, and the angle between the bracket 140 and the housing 110 gradually increases.

[0310] Exemplarily, the first angle range is set to 0° to 40°, and the second angle range is set to 40° to 165°. When the rear cover 120 is in the raised position, the angle between the rear cover 120 and the housing 110, that is, the maximum lifting angle of the rear cover 120 relative to the housing 110, is set to 2°. Figure 4As shown in (b), when the bracket 140 is opened and rotated within the first angle range (0° to 40°), the back cover 120 follows the bracket 140 to be lifted from 0° to a maximum lifting angle of 2°.

[0311] like Figure 4 As shown in (c) of FIG. 1 , when the bracket 140 continues to open and enter the second angle range (40° to 165°), the rear cover 120 remains at the maximum lifting angle of 2°. Figure 4 As shown in (b), when the bracket 140 is folded and rotated from 40° to 0° to be overlapped on the housing 110, the back cover 120 follows the bracket 140 from the maximum lifting angle of 2° to the closed position of 0°.

[0312] When the support shaft assembly 170 uses a virtual axis shaft, there may be a virtual position problem, which is mainly caused by the assembly tolerance of the parts. In order to overcome the virtual position problem of the support shaft assembly 170, in some embodiments, refer to Fig. 27 In (a) and (b), the guide groove 1311 further includes a virtual position segment 1311c, and one end of the climbing segment 1311a away from the retaining segment 1311b is connected to the virtual position segment 1311c.

[0313] When the bracket 140 is stacked on the housing 110, a virtual position section 1311c is set before the climbing section 1311a, so that the sliding shaft 1321 of the connecting rod 132 slides against the virtual position section 1311c, and the sliding shaft 1321 does not drive the swinging member 131 to rotate until the sliding shaft 1321 enters the climbing section 1311a and drives the swinging member 131 to swing, thereby overcoming the virtual axis rotation axis virtual position problem of the bracket rotation shaft assembly 170, so that the back cover 120 is lifted to the required height position at a predetermined bracket 140 angle.

[0314] The swing member 131 and the connecting rod 132 are applied to Fig.25 , Fig.26 When the rear cover 120 and the bracket 140 are both rotatably connected to the housing 110, refer to Fig.25 , Fig.26 The rear cover 120 has a pivot end 120c and a free end 120d that are arranged opposite to each other. The pivot end 120c of the rear cover 120 is the end of the rotation axis 120a of the rear cover 120. The connecting rod 132 and the swing member 131 can be arranged along the direction from the pivot end 120c to the free end 120d of the rear cover 120. The connection position of the swing member 131 and the rear cover 120 can be arranged close to the free end 120d of the rear cover 120, so that the rear cover 120 can be driven to rotate with a smaller force.

[0315] Exemplarily, the pivot end 120c of the back cover 120 is arranged near the middle of the outer shell 110, and the connection position between the swing member 131 and the back cover 120 is close to the free end 120d of the back cover 120, so that the back cover 120 can be driven to rotate relative to the outer shell 110 more conveniently through the bracket shaft assembly 170, the connecting rod 132 and the swing member 131.

[0316] The swing member 131 and the connecting rod 132 are applied to Fig.28 In the scheme shown in which the back cover 120 and the outer shell 110 are connected in a linear movement manner and the bracket 140 and the outer shell 110 are rotationally connected, the connecting rod 132 can be set close to the rotation axis 140a of the bracket 140, and the swinging member 131 is set at a position far away from the rotation axis 140a of the bracket 140. The back cover 120 can be driven to move linearly relative to the outer shell 110 through the bracket shaft assembly 170, the connecting rod 132 and the swinging member 131.

[0317] Exemplarily, the back cover 120 is configured to move linearly in the thickness direction relative to the outer shell 110, and the connection position between the swing member 131 and the back cover 120 is set near the middle of the back cover 120. In the process of the swing member 131 driving the back cover 120 to move linearly, the swing member 131 can smoothly drive the back cover 120 to move linearly relative to the back side of the outer shell 110.

[0318] The second method of implementing the lifting mechanism 130 is to rotate the driving member and the transmission assembly, see Figure 29 to Figure 32 The lifting mechanism 130 includes a rotating driving member 133 and a first transmission assembly 134. The output end of the rotating driving member 133 is connected to the input end 134a of the first transmission assembly 134. The output end 134b of the first transmission assembly 134 is connected to the rear cover 120 so that the rear cover 120 moves following the output end 134b of the first transmission assembly 134.

[0319] The rotation drive member 133 is used to provide rotational power, and the first transmission assembly 134 is used to convert the output rotation of the rotation drive member 133 into the movement required by the rear cover 120. The input end 134a of the first transmission assembly 134 is connected to the output end of the rotation drive member 133 to receive the power of the rotation drive member 133. The output end 134b of the first transmission assembly 134 is connected to the rear cover 120 so that the power acts on the rear cover 120 to move it. When the rotation drive member 133 is working, the rotation drive member 133 drives the first transmission assembly 134 to move, and the first transmission assembly 134 drives the rear cover 120 to move relative to the housing 110, so as to realize the switching of the rear cover 120 between the closed position and the raised position. The rotation drive member 133 can be a micro motor with a small volume, which is convenient for being arranged between the housing 110 and the rear cover 120. The output end of the rotation drive member 133 is the output shaft of the motor. The combination of the rotation drive member 133 and the first transmission assembly 134 occupies a small space and has a stable and reliable structure.

[0320] In order to enable the host end 1000 to automatically start the efficient heat dissipation function in a high temperature environment, in some embodiments, refer to Figure 4 A temperature sensor 190 for detecting the temperature of the heating element 300 is provided on the shell assembly 100, and the lifting mechanism 130 is configured to drive the back cover 120 to move when the detected temperature of the temperature sensor 190 exceeds the back cover lifting temperature value, so that the back cover 120 switches from the closed position to the lifted position.

[0321] The temperature sensor 190 on the housing assembly 100 detects the operating temperature of the heating element 300. When the temperature exceeds a predetermined value, the lifting mechanism 130 is activated, and the lifting mechanism 130 drives the rear cover 120 to move to the lifting position, thereby realizing efficient heat dissipation of the heating element 300. When the heating element 300 of the host end 1000 generates high heat, efficient heat dissipation is performed, so that the host end 1000 can be maintained in a high-performance operating mode to meet user needs.

[0322] The temperature sensor 190 and the lifting mechanism 130 are both electrically connected to the processor. The temperature value detected by the temperature sensor 190 is fed back to the processor, and the processor determines the comparison between the detected temperature value and the preset rear cover lifting temperature value. When the detected temperature value is greater than or equal to the rear cover lifting temperature value, the processor outputs a start signal to the lifting mechanism 130 to make the lifting mechanism 130 work. The combination of the temperature sensor 190 and the lifting mechanism 130 can intelligently lift the rear cover 120 according to the temperature change, which is highly flexible. The lifting mechanism 130 can be electrically driven, such as the rotation drive member 133 (such as a motor) combined with the first transmission assembly 134 to realize the lifting and resetting movement of the rear cover 120.

[0323] In order to control the operation of the rotating drive member 133, in other embodiments, a trigger element may be configured on the housing assembly 100, and the rotating drive member 133 in the lifting mechanism 130 is configured to operate the rotating drive member 133 when the trigger element is triggered, so that the rotating drive member 133 and the first transmission assembly 134 cooperate to realize the switching of the rear cover 120 between the closed position and the lifted position. There are many ways to implement the trigger element.

[0324] Exemplarily, the trigger element is a button disposed on the shell assembly 100, the button is electrically connected to the rotating drive member 133, and the button is configured to cause the rotating drive member 133 to rotate forward or reverse when pressed and drive the first transmission assembly 134 to switch the rear cover 120 between the closed position and the raised position.

[0325] Exemplarily, the trigger element is a virtual button displayed on the display screen 200, which is configured to cause the rotating drive member 133 to rotate forward or reverse when pressed and drive the first transmission assembly 134 to switch the rear cover 120 between the closed position and the raised position.

[0326] When setting the first transmission assembly 134, different transmission modes that can convert rotation into linear movement can be used, such as a cam mechanism that converts cam rotation into push rod linear movement, a gear rack mechanism that converts gear rotation into rack linear movement, and so on.

[0327] The following is a detailed description of the first transmission assembly 134. Figure 31 to Figure 33 The first transmission assembly 134 includes a worm gear assembly 1341, a gear rack assembly 1342 and a slideway assembly 1343; the worm gear assembly 1341 includes a worm 1341a and a worm wheel 1341b for meshing transmission, and the worm 1341a serves as the input end 134a of the first transmission assembly 134. The gear rack assembly 1342 includes a first gear 1342a, a second gear 1342b and a rack 1342c, the worm wheel 1341b and the first gear 1342a are synchronously rotated and connected, the first gear 1342a and the second gear 1342b are in transmission cooperation, the second gear 1342b and the rack 1342c are meshed for transmission, and the rack 1342c is slidably mounted on the housing 110. The slide assembly 1343 includes a first slide bar 1343a and a first sliding member 1343b. The first slide bar 1343a is fixed on the rack 1342c. The first sliding member 1343b has a first slide slot 1343c extending along a predetermined route. The first sliding member 1343b serves as the output end 134b of the first transmission assembly 134. Fig.34 , Fig.35 The first sliding rod 1343a is disposed in the first sliding groove 1343c and can slide along the first sliding groove 1343c to drive the first sliding member 1343b to move relative to the housing 110, and the back cover 120 moves with the first sliding member 1343b.

[0328] The first transmission assembly 134 adopts a combination of multiple transmission structures, which can convert the rotation of the rotating driving member 133 into the up and down movement of the first sliding member 1343b, so as to drive the rear cover 120 to move relative to the housing 110 to realize the switching between the closed position and the raised position. In addition, the first transmission assembly 134 is small in the thickness direction of the housing 110, which is convenient for being arranged between the housing 110 and the rear cover 120, occupies a small space, and operates stably and reliably. During operation, the rotating driving member 133 drives the worm 1341a to rotate, the worm 1341a and the worm wheel 1341b are meshed for transmission, and the first gear 1342a rotates following the worm wheel 1341b. The first gear 1342a and the second gear 1342b can be directly meshed for transmission, or a gear set can be configured between the first gear 1342a and the second gear 1342b to realize gear transmission. The second gear 1342b and the rack 1342c are meshed for transmission to drive the rack 1342c to slide along a predetermined direction. The first slide bar 1343a on the rack 1342c and the first slide groove 1343c of the first sliding member 1343b are slidably abutted and matched, driving the first sliding member 1343b to move relative to the housing 110. By changing the rotation direction of the output end of the rotating driving member 133, the second transmission assembly 136 can be operated in both positive and negative directions, so that the rear cover 120 can be switched between the closed position and the raised position. The rack 1342c and the first slide bar 1343a can be connected by welding or the like. The first sliding member 1343b and the rear cover 120 can be connected by fasteners or the like.

[0329] When installing gears and other related parts on the housing 110, refer to Fig.32 , Fig.33 A gear box 1344 is provided on the housing 110 , and a worm wheel 1341 b , a worm 1341 a , a first gear 1342 a and a second gear 1342 b are installed on the gear box 1344 .

[0330] The gears in the worm gear assembly 1341 and the rack and pinion assembly 1342 are arranged in a gear box 1344, and the gear box 1344 is mounted on the housing 110, so that each part is kept in a predetermined position, reducing the impact of the outside on the related parts, and improving the reliability of the first transmission assembly 134. The gear box 1344 may include a seat body 1344a and a cover body 1344b, and parts such as gears may be arranged on the seat body 1344a, and the cover body 1344b is fixed on the seat body 1344a to protect the internal parts.

[0331] When the rack 1342c is mounted on the housing 110, refer to Fig.32 , Fig.33The housing 110 is provided with a first guide rod 1342e extending along the length direction of the rack 1342c, the rack 1342c has a first groove 1342d extending along the length direction of the rack 1342c, and the first guide rod 1342e is embedded in the first groove 1342d to enable the rack 1342c to slide along the length direction of the first guide rod 1342e.

[0332] The first guide rod 1342e guides the rack 1342c, allowing the rack 1342c to keep sliding in a predetermined direction, thereby achieving stable meshing transmission between the second gear 1342b and the rack 1342c, and stable sliding cooperation between the first sliding rod 1343a of the rack 1342c and the first sliding groove 1343c of the first sliding member 1343b.

[0333] A first groove 1342d may be provided on opposite sides of the rack 1342c, each of which is provided with a first guide rod 1342e. The two first guide rods 1342e are arranged at intervals and fixed on the housing 110, so as to facilitate the stable sliding of the rack 1342c relative to the housing 110. The cross sections of the first groove 1342d and the first guide rod 1342e may be provided in matching shapes, such as a rectangle.

[0334] When the first sliding groove 1343c is provided on the first sliding member 1343b, refer to Fig.34 , Fig.35 The back cover 120 includes a first plate body 122, the first slide groove 1343c is a linear groove, the first slide groove 1343c has a first end 1343d and a second end 1343e opposite to each other, the first end 1343d of the first slide groove 1343c is arranged toward the bracket and the first plate body 122, and the second end 1343e of the first slide groove 1343c is arranged away from the bracket and the first plate body 122; when the first slide rod 1343a is located at the first end 1343d of the first slide groove 1343c, the back cover 120 is in a closed position; when the first slide rod 1343a is located at the second end 1343e of the first slide groove 1343c, the back cover 120 is in a raised position.

[0335] The first slide groove 1343c of the first sliding member 1343b is set as a linear groove, and the extension route of the linear groove is set to extend obliquely relative to the first plate body 122 of the rear cover 120. The first slide bar 1343a on the rack 1342c is slidably installed in the first slide groove 1343c, and when the rack 1342c moves forward and backward, the first slide bar 1343a can drive the first sliding member 1343b to move up and down relative to the housing 110, thereby driving the rear cover 120 to switch between the closed position and the raised position.

[0336] The above-mentioned rotating driving member 133 and the first transmission assembly 134 are applied to Figure 29 to Figure 35In the solution where the rear cover 120 and the bracket 140 are both rotatably connected to the housing 110, the rear cover 120 has a pivot end 120c and a free end 120d that are arranged opposite to each other, and the pivot end 120c of the rear cover 120 is the end of the rotation axis of the rear cover 120. The output end 134b of the first transmission assembly 134 can be arranged close to the free end 120d of the rear cover 120, so that a relatively small force can be used to drive the rear cover 120 to rotate.

[0337] Exemplarily, the pivot end 120c of the rear cover 120 is arranged near the middle of the outer shell 110, and the output end 134b of the first transmission assembly 134 is arranged near the free end 120d of the rear cover 120, so that the rear cover 120 can be driven to rotate relative to the outer shell 110 more conveniently by rotating the driving member 133 and the first transmission assembly 134.

[0338] The above-mentioned rotating driving member 133 and the first transmission assembly 134 are applied to Fig.14 In the scheme shown in which the rear cover 120 and the outer shell 110 are connected in a linearly movable manner and the bracket 140 and the outer shell 110 are connected in a rotational manner, the first transmission assembly 134 can be set at different positions of the rear cover 120, and the rear cover 120 can be driven to move linearly relative to the outer shell 110 by rotating the driving member 133 and the first transmission assembly 134.

[0339] Exemplarily, the back cover 120 is configured to move linearly in the thickness direction relative to the outer shell 110, and the output end of the first transmission component 134 is arranged near the middle of the back cover 120. In the process of the first transmission component 134 driving the back cover 120 to move linearly, the first transmission component 134 can smoothly drive the back cover 120 to move linearly relative to the back side of the outer shell 110.

[0340] The third implementation mode of the lifting mechanism 130 is manual drive, see Figure 36 to Figure 39 The lifting mechanism 130 includes a sliding key 135 and a second transmission assembly 136. The sliding key 135 is slidably installed on the housing 110. The sliding key 135 is connected to the input end 136a of the second transmission assembly 136. The output end 136b of the second transmission assembly 136 is connected to the back cover 120. The output end 136b of the second transmission assembly 136 is connected to the back cover 120, so that the back cover 120 moves with the output end 136b of the second transmission assembly 136.

[0341] The sliding key 135 is used for the user to operate by toggling, and the second transmission assembly 136 is used to convert the sliding displacement of the sliding key 135 into the required movement of the back cover 120. The input end 136a of the second transmission assembly 136 is connected to the sliding key 135 to follow the movement of the sliding key 135. The output end 136b of the second transmission assembly 136 is connected to the back cover 120 so that the power acts on the back cover 120 to move it. When the sliding key 135 is toggled, the sliding key 135 drives the second transmission assembly 136 to move, and the second transmission assembly 136 drives the back cover 120 to move relative to the housing 110, so as to realize the switching of the back cover 120 between the closed position and the raised position. The sliding key 135 can be arranged at the frame position of the housing 110, and a strip groove 111a is arranged at the frame position to install the sliding key 135, which occupies less space.

[0342] When the second transmission assembly 136 is provided, a transmission method capable of changing the direction of linear motion may be adopted, and the directions of linear motion of the input and output are nearly vertical.

[0343] The second transmission assembly 136 is described in detail below. Fig.38 , Fig.39 The second transmission assembly 136 includes a second sliding rod 1361 and a second sliding member 1362. The second sliding rod 1361 serves as an input end 136a of the second transmission assembly 136. The second sliding member 1362 has a second sliding groove 1362a extending along a predetermined route. The second sliding member 1362 serves as an output end 136b of the second transmission assembly 136. The second sliding rod 1361 is inserted into the second sliding groove 1362a and can slide along the second sliding groove 1362a to drive the second sliding member 1362 to move relative to the housing 110, and the back cover 120 moves following the second sliding member 1362.

[0344] The second transmission assembly 136 has a simple structure and can convert the linear movement of the sliding key 135 into the up and down movement of the second sliding member 1362, so as to drive the rear cover 120 to move relative to the housing 110 to realize the switching between the closed position and the raised position. Moreover, the second transmission assembly 136 has a small size in the thickness direction of the housing 110, so it is convenient to be arranged between the housing 110 and the rear cover 120, occupies a small space, and operates stably and reliably. During operation, the sliding key 135 drives the second slide bar 1361 to move, and the second slide bar 1361 and the second slide groove 1362a of the second slide member 1362 slide in abutment and cooperate, driving the second slide member 1362 to move relative to the housing 110. By changing the moving direction of the sliding key 135, the second transmission assembly 136 can be realized to work in both directions, so that the rear cover 120 can be switched between the closed position and the raised position.

[0345] When the sliding key 135 and the second sliding rod 1361 are connected, refer to Fig.38 , Fig.39The sliding key 135 and the second sliding rod 1361 are connected by a connecting structure 137, and the connecting structure 137 is slidably mounted on the housing 110, and each part is easy to process and assemble. The connecting structure 137 can be set to a predetermined shape to facilitate the connection between the sliding key 135 and the second sliding rod 1361.

[0346] The housing 110 is provided with a second guide rod 1362d extending in a predetermined direction, and the connecting structure 137 has a second groove 1371 extending in the predetermined direction. The second guide rod 1362d is embedded in the second groove 1371 so that the connecting structure 137 slides along the length direction of the second guide rod 1362d. The second guide rod 1362d guides the connecting structure 137, so that the connecting structure 137 keeps sliding in the predetermined direction, thereby realizing the stable sliding of the sliding key 135 on the housing 110, and the stable sliding cooperation between the second slide rod 1361 and the second slide groove 1362a of the second slide member 1362.

[0347] A second groove 1371 may be provided on opposite sides of the connection structure 137, each second groove 1371 is provided with a second guide rod 1362d, and the two second guide rods 1362d are arranged at intervals and fixed on the housing 110, so as to facilitate the stable sliding of the connection structure 137 relative to the housing 110. The cross-sections of the second groove 1371 and the second guide rod 1362d may be provided in matching shapes, such as a rectangle.

[0348] When the second sliding groove 1362a is provided on the second sliding member 1362, refer to Fig.37 , Fig.38 The back cover 120 includes a first plate body 122, the second slide groove 1362a is a linear groove, the second slide groove 1362a has a first end 1362b and a second end 1362c opposite to each other, the first end 1362b of the second slide groove 1362a is set toward the bracket 140 and the first plate body 122, and the second end 1362c of the second slide groove 1362a is set back to the bracket 140 and the first plate body 122; when the second slide rod 1361 is located at the first end 1362b of the second slide groove 1362a, the back cover 120 is in a closed position; when the second slide rod 1361 is located at the second end 1362c of the second slide groove 1362a, the back cover 120 is in a raised position.

[0349] The second slide groove 1362a of the second sliding member 1362 is set as a linear groove, and the extension route of the linear groove is set to extend obliquely relative to the first plate 122 of the rear cover 120. The second slide bar 1361 on the connecting structure 137 is slidably installed in the second slide groove 1362a. When the connecting structure 137 moves forward and backward, the second slide bar 1361 can drive the second sliding member 1362 to move up and down relative to the housing 110, thereby driving the rear cover 120 to switch between the closed position and the raised position.

[0350] The sliding key 135 and the second transmission assembly 136 are applied to Figure 37 to Figure 39 In the solution where the rear cover 120 and the bracket 140 are both rotatably connected to the housing 110, the rear cover 120 has a pivot end 120c and a free end 120d arranged opposite to each other, and the pivot end 120c of the rear cover 120 is the end of the rotation axis of the rear cover 120. The output end 136b of the second transmission assembly 136 can be arranged close to the free end 120d of the rear cover 120, so that a relatively small force can be used to drive the rear cover 120 to rotate.

[0351] Exemplarily, the pivot end 120c of the rear cover 120 is disposed near the middle of the housing 110, and the second transmission assembly 136 is disposed near the free end 120d of the rear cover 120, so that the rear cover 120 can be driven to rotate relative to the housing 110 more conveniently through the sliding key 135 and the second transmission assembly 136.

[0352] The sliding key 135 and the second transmission assembly 136 are applied to Fig.40 In the scheme shown in which the back cover 120 and the outer shell 110 are connected in a linearly movable manner and the bracket 140 and the outer shell 110 are rotationally connected, the second transmission assembly 136 can be set at different positions of the back cover 120, and the back cover 120 can be driven to move linearly relative to the outer shell 110 through the sliding key 135 and the second transmission assembly 136.

[0353] Exemplarily, the back cover 120 is configured to move linearly in the thickness direction relative to the outer shell 110, and the output end of the second transmission component 136 is arranged near the middle of the back cover 120. In the process of the second transmission component 136 driving the back cover 120 to move linearly, the second transmission component 136 can smoothly drive the back cover 120 to move linearly relative to the back side 110b of the outer shell 110.

[0354] For the above three lifting mechanisms 130, in order to make the rear cover 120 move stably under the driving of the lifting mechanism 130, refer to Figure 5 , Fig.30 , Fig.37 A plurality of lifting mechanisms 130 may be arranged at intervals on the housing 110 , and the plurality of lifting mechanisms 130 drive the rear cover 120 to move relative to the housing 110 , so that the rear cover 120 is more stable and reliable when moving.

[0355] In some embodiments, a lifting mechanism 130 is arranged at the two opposite ends of the outer shell 110 corresponding to the back cover 120 area. The two lifting mechanisms 130 are configured to provide a stable driving force for the back cover 120, so that the movement of the back cover 120 is more stable and smooth. In addition, a larger installation space is formed between the two lifting mechanisms 130, which makes it convenient to concentrate more devices between the two lifting mechanisms 130 and to arrange devices such as circuit boards with a larger area.

[0356] In other embodiments, a lifting mechanism 130 is arranged at one end of the outer shell 110 corresponding to the area of ​​the back cover 120. The use of a lifting mechanism 130 can also realize the movement of the back cover 120 relative to the outer shell 110, realize the switching of the back cover 120 between the closed position and the lifted position, and also facilitate the arrangement of devices on the outer shell 110.

[0357] In order to achieve the air cooling and heat dissipation function of the heating element 300 between the housing 110 and the back cover 120, in some embodiments, refer to Fig.41 , an air cooling heat dissipation module 180 is provided between the housing 110 and the rear cover 120, Fig.42 The air cooling module 180 is mounted on the inner side 110c of the housing 110, or combined with Fig.43 The air-cooling heat dissipation module 180 is installed on the inner side surface 120 e of the rear cover 120 , and the air-cooling heat dissipation module 180 is connected to the heating element 300 to dissipate heat from the heating element 300 through air cooling. Figure 41 to Figure 43 The arrows in the diagram indicate the direction of airflow.

[0358] The inner side surface 110c of the housing 110 refers to a side surface of the housing 110 facing the rear cover 120. The inner side surface 120e of the rear cover 120 refers to a side surface of the rear cover 120 facing the housing 110. The air-cooling heat dissipation module 180 is arranged between the housing 110 and the rear cover 120 and connected to the heating element 300, and performs air-cooling heat dissipation on the heating element 300 between the housing 110 and the rear cover 120.

[0359] See also Fig.42 When the air-cooling heat dissipation module 180 is installed on the inner side 110c of the housing 110, the heating element 300 and the circuit board assembly 310 connected to the heating element 300 are also on the housing 110. When the rear cover 120 is in the raised position, the heat dissipation channel 101 formed between the housing 110 and the rear cover 120 has a larger volume, a smaller air-cooling heat dissipation internal resistance, and an improved air-cooling efficiency, thereby achieving an efficient air-cooling heat dissipation effect.

[0360] See also Fig.43When the air-cooling heat dissipation module 180 is installed on the inner side 110c of the rear cover 120, the heating element 300 and the circuit board assembly 310 connected to the heating element 300 are also on the rear cover 120. In the process of switching between the closed position and the raised position of the rear cover 120, the air-cooling heat dissipation module 180, the heating element 300 and the circuit board assembly 310 can follow the rear cover 120 to move relative to the housing 110. When the rear cover 120 is in the raised position, the air-cooling heat dissipation module 180 and the heating element 300 are away from the display screen 200 on the front side 110a of the housing 110, and the heat generated by the heating element 300 will not be too much transferred to the display screen 200. When the user touches and uses the display screen 200, it will not be overheated, which is more comfortable. The heat dissipation channel 101 formed between the housing 110 and the rear cover 120 has a large volume, a small air-cooling internal resistance, and an improved air-cooling efficiency, thereby achieving an efficient air-cooling heat dissipation effect.

[0361] For example, by providing an air-cooling heat dissipation module 180 between the housing 110 and the back cover 120, when the heating element 300 between the housing 110 and the back cover 120 generates a large amount of heat, the back cover 120 is switched to the raised position, and the heating element 300 is efficiently dissipated by the air-cooling heat dissipation module 180. The thermal design power consumption of the host end 1000 of the embodiment of the present application can be greater than or equal to 30 watts, which has a stronger heat dissipation performance than the host end of the two-in-one electronic device or the tablet computer in the related art.

[0362] When setting up the air cooling module 180, refer to Fig.41 The air-cooling heat dissipation module 180 includes a fin heat sink 181 and a fan 182 . The fin heat sink 181 is connected to the heating element 300 . The fan 182 and the fin heat sink 181 are arranged opposite to each other to dissipate heat from the fin heat sink 181 by air cooling.

[0363] The fin heat sink 181 and the heating element 300 may be in direct contact or indirectly connected. The heat generated by the heating element 300 is transferred to the fin heat sink 181, and the airflow generated by the fan 182 passes through the fin heat sink 181, quickly taking the heat of the fin heat sink 181 out of the housing 110 and the back cover 120, achieving an efficient heat dissipation effect, so that the heating element 300 can work normally in a good temperature environment.

[0364] In order to improve the heat dissipation capability of the air-cooled heat dissipation module 180, in some embodiments, refer to Fig.41 The air-cooled heat dissipation module 180 further includes a uniform heat member 183, which has an evaporation zone 183a and a condensation zone 183b arranged at intervals. The evaporation zone 183a is connected to the heating element 300, and the fin heat sink 181 is connected to the condensation zone 183b.

[0365] The heat generated by the heating element 300 is conducted to the uniform heat member 183, and the heat is conducted to the fin heat sink 181 over a large area through the uniform heat member 183, and the fin heat sink 181 is cooled by air by the fan 182, so that the high-power heating element 300 such as the processor can be efficiently cooled. The uniform heat member 183 can be set to multiple condensation areas 183b to arrange more fin heat sinks 181 and fans 182 to improve the air cooling and heat dissipation capacity.

[0366] The heat spreader 183 can be a vacuum chamber (VC) heat spreader. The VC heat spreader is a two-phase fluid device formed by injecting a coolant (such as pure water) into a container covered with microstructures. During operation, external heat enters the plate through heat conduction, and the coolant in the evaporation area 183a quickly absorbs heat and vaporizes into steam. The steam diffuses to the entire inner cavity, and the steam contacts the inner wall of the condensation area 183b with a lower temperature. The steam quickly condenses into liquid and releases heat energy. The condensed water flows back to the evaporation area 183a by the capillary action of the microstructure, realizing a two-way heat cycle of water and steam.

[0367] For example, see Fig.41 The uniform heat member 183 is extended along the left and right opposite sides of the housing assembly 100, the middle of the uniform heat member 183 is used as the evaporation zone 183a, and the opposite ends of the uniform heat member 183 are used as condensation zones 183b respectively. The evaporation zone 183a is in contact with the heating element 300, and each condensation zone 183b is provided with a fin heat sink 181 and a fan 182. Accordingly, the housing assembly 100 is provided with an air inlet and an air outlet connected to the heat dissipation channel 101 to achieve air cooling and heat dissipation of the heating element 300.

[0368] In order to enable the host end 1000 to automatically start the air cooling module 180 in a high temperature environment, in some embodiments, refer to Fig.41 The housing assembly 100 is provided with a temperature sensor 190 for detecting the temperature of the heating element 300 , and the fan 182 is configured to start working when the temperature detected by the temperature sensor 190 exceeds a starting temperature value of the fan 182 .

[0369] The operating temperature of the heating element 300 is detected by the temperature sensor 190 on the housing assembly 100. When the temperature exceeds a predetermined value, the fan 182 in the air-cooling heat dissipation module 180 is started, and the air-cooling heat dissipation module 180 forms air-cooling heat dissipation for the heating element 300, so that the heating element 300 with a higher heat generation can work normally at a suitable temperature. When the heating element 300 of the host end 1000 generates a higher heat, efficient heat dissipation is performed, so that the host end 1000 is maintained in a high-performance operating mode to meet the user's use needs.

[0370] The temperature sensor 190 and the fan 182 are both electrically connected to the processor. The temperature value detected by the temperature sensor 190 is fed back to the processor, and the processor determines the size of the detected temperature value and the preset fan 182 start temperature value. When the detected temperature value is greater than or equal to the fan 182 start temperature value, the processor outputs a start signal to the fan 182 start temperature to enable the air-cooled heat dissipation module 180 to work.

[0371] When setting the air inlet and outlet holes on the housing assembly 100, refer to Fig.44 , Fig.45 The back cover 120 includes a first plate body 122 and a first edge wall 123 connected to each other, and the first edge wall 123 has a first air inlet 1231a and a first air outlet 1232a; the housing 110 includes a second plate body 113 and a second edge wall 114 connected to each other; Fig.25 , Fig.26 The first plate body 122 and the second plate body 113 are arranged opposite to each other, and the first edge wall 123 and the second edge wall 114 are arranged opposite to each other; when the rear cover 120 is in the closed position, the first edge wall 123 is located as a whole on the inner side of the second edge wall 114; when the rear cover 120 is in the raised position, the first edge wall 123 is at least partially exposed, so that the first air inlet 1231a and the first air outlet 1232a are exposed.

[0372] The back cover 120 and the housing 110 are roughly set to be plate-shaped, and the circuit board, processor and other devices arranged between the housing 110 and the back cover 120 are surrounded by the housing 110 and the back cover 120, so as to improve the reliability of the internal devices. The first plate body 122 and the second plate body 113 can be roughly rectangular, or can be set to other shapes. When the back cover 120 is in the closed position, the back cover 120 is stacked on the housing 110, the first plate body 122 and the second plate body 113 are arranged close to each other, and the first edge wall 123 is located on the inner side of the second edge wall 114, which can present a thinner appearance similar to a tablet computer. When the rear cover 120 is in the raised position, a large heat dissipation channel 101 is formed between the first plate 122 and the second plate 113, and the air cooling internal resistance is small. The first air inlet hole 1231a and the first air outlet hole 1232a are both connected to the heat dissipation channel 101, and the air flow can enter the heat dissipation channel 101 through the first air inlet hole 1231a and then be discharged from the first air outlet hole 1232a, so as to efficiently cool the heating element 300 in the heat dissipation channel 101. A plurality of first air inlet holes 1231a and a plurality of first air outlet holes 1232a can be arranged at appropriate positions of the first edge wall 123.

[0373] The first edge wall 123 and the second edge wall 114 can be set to have a smaller thickness dimension, so that when the back cover 120 is stacked on the housing 110 , related components such as a circuit board and a processor can be accommodated between the first plate body 122 and the second plate body 113 .

[0374] In order to achieve heat convection heat dissipation when the back cover 120 is stacked on the housing 110, in some embodiments, refer to Figure 41 to Figure 43 The second edge wall 114 has a second air inlet hole 1141a and a second air outlet hole 1142a; when the rear cover 120 is in a closed position, the first air inlet hole and the second air inlet hole 1141a are connected along the airflow direction, and the first air outlet hole 1232a and the second air outlet hole 1142a are connected along the airflow direction; when the rear cover 120 is in a raised position, the first air inlet hole and the first air outlet hole 1232a are both exposed, and the second air inlet hole 1141a and the second air outlet hole 1142a are both exposed.

[0375] On the basis that the first edge wall 123 of the rear cover 120 is provided with the first air inlet and the first air outlet 1232a, when the rear cover 120 is in the closed position, the first edge wall 123 is located at the inner side of the second edge wall 114, the second edge wall 114 is provided with the second air inlet 1141a and the second air outlet 1142a, the first air inlet and the second air inlet 1141a are connected, and the first air outlet 1232a and the second air outlet 1142a are connected. When the rear cover 120 is in the closed position, the airflow can pass through the second air inlet 1141a and the first air inlet in sequence, enter between the housing 110 and the rear cover 120, and then be discharged from the first air outlet 1232a and the second air outlet 1142a, so as to cool the heating element 300 between the housing 110 and the rear cover 120, so that the rear cover 120 can achieve heat convection heat dissipation when it is stacked on the housing 110. A plurality of second air inlet holes 1141 a and a plurality of second air outlet holes 1142 a may be disposed at appropriate positions of the second edge wall 114 .

[0376] When both the back cover 120 and the housing 110 are provided with air inlets and air outlets, the effective cross-sectional area of ​​the first air inlet is greater than the effective cross-sectional area of ​​the second air inlet 1141a, and the effective cross-sectional area of ​​the first air outlet 1232a is greater than the effective cross-sectional area of ​​the second air outlet 1142a. The effective cross-sectional area of ​​the first air inlet refers to the sum of the cross-sectional areas of all the first air inlets in the direction of airflow. The definition of the effective cross-sectional area of ​​other air inlets or air outlets is similar.

[0377] When the rear cover 120 is in the closed position, the first edge wall 123 is located on the inner side of the second edge wall 114, and only the second air inlet hole 1141a and the second air outlet hole 1142a with a smaller area can be seen from the outside of the housing assembly 100, and the overall shape of the housing assembly 100 is more beautiful. When the rear cover 120 is in the raised position, the first edge wall 123 is at least partially exposed, the first air inlet hole 1231a and the first air outlet hole 1232a are exposed, the first air inlet hole and the second air inlet hole 1141a both take in air, and the first air outlet hole 1232a and the second air outlet hole 1142a both discharge air, thereby increasing the air inlet and outlet efficiency, improving the air cooling and heat dissipation capacity, and the air discharge is smooth and the noise is low.

[0378] In other embodiments, see Fig.25 , Fig.44 When the back cover 120 is stacked on the outer shell 110, heat conduction can be used to dissipate heat. There is no need to set air inlet holes and air outlet holes on the outer shell 110. The heat generated by the heating element 300 can be conducted to the outer shell 110 or the back cover 120 through a heat conducting member (such as a heat pipe), and heat is dissipated by the outer shell 110 or the back cover 120.

[0379] In other embodiments, the back cover 120 includes a first plate body 122 and a first edge wall 123 connected to each other, and the outer shell 110 includes a second plate body 113 and a second edge wall 114 connected to each other, and the second edge wall 114 has a second air inlet hole 1141a and a second air outlet hole 1142a; the first plate body 122 and the second plate body 113 are arranged opposite to each other, and the first edge wall 123 and the second edge wall 114 are arranged opposite to each other; when the back cover 120 is in a closed position, the second edge wall 114 is located as a whole on the inner side of the first edge wall 123; when the back cover 120 is in a raised position, the second edge wall 114 is at least partially exposed so that the second air inlet hole 1141a and the second air outlet hole 1142a are exposed.

[0380] When the rear cover 120 is in the closed position, the rear cover 120 is stacked on the housing 110, the first plate 122 and the second plate 113 are arranged close to each other, and the second edge wall 114 is located on the inner side of the first edge wall 123, which can present a thinner appearance similar to a tablet computer. When the rear cover 120 is in the raised position, a heat dissipation channel 101 with a large volume is formed between the first plate 122 and the second plate 113, and the air cooling internal resistance is small. The second air inlet 1141a and the second air outlet 1142a are both connected to the heat dissipation channel 101, and the air flow can enter the heat dissipation channel 101 through the second air inlet 1141a and then be discharged from the second air outlet 1142a, so as to efficiently cool the heating element 300 in the heat dissipation channel 101. A plurality of second air inlet holes 1141a and a plurality of second air outlet holes 1142a can be arranged at appropriate positions of the second edge wall 114.

[0381] In some embodiments, based on the second edge wall 114 of the housing 110 having a second air inlet hole 1141a and a second air outlet hole 1142a, the first edge wall 123 has a first air inlet hole 1231a and a first air outlet hole 1232a; when the back cover 120 is in a closed position, the first air inlet hole 1231a and the second air inlet hole 1141a are connected along the airflow direction, and the first air outlet hole 1232a and the second air outlet hole 1142a are connected along the airflow direction; when the back cover 120 is in a raised position, the first air inlet hole 1231a and the first air outlet hole 1232a are both exposed, and the second air inlet hole 1141a and the second air outlet hole 1142a are both exposed. When the rear cover 120 is in the closed position, the airflow can pass through the first air inlet hole 1231a and the second air inlet hole 1141a in sequence, enter between the housing 110 and the rear cover 120, and then be discharged from the second air outlet hole 1142a and the first air outlet hole 1232a, so as to cool the heating element 300 between the housing 110 and the rear cover 120, so that the rear cover 120 can achieve heat convection heat dissipation when it is stacked on the housing 110. A plurality of first air inlet holes 1231a and a plurality of first air outlet holes 1232a can be set at appropriate positions of the first edge wall 123.

[0382] When setting the first plate 122 and the second plate 113, refer to Fig.25 When the rear cover 120 is in the closed position, the first plate 122 and the second plate 113 are parallel, so that when the rear cover 120 is stacked on the housing 110, it forms a thinner plate-like shape similar to a tablet computer, forming a better appearance.

[0383] When setting the first edge wall 123 and the second edge wall 114, refer to Fig.26 When the rear cover 120 is in the raised position, the first edge wall 123 is away from the first plate 122 and the second edge wall 114 is away from the second plate 113. The internal components such as the circuit board and the processor between the rear cover 120 and the housing 110 are shielded by the first edge wall 123 and the second edge wall 114, and the internal components are effectively protected.

[0384] In order to define the relative position of the rear cover 120 and the housing 110 when the rear cover 120 is in the raised position, in some embodiments, refer to Fig.25 , Fig.26The first edge wall 123 has a first blocking wall 1233, and the second edge wall 114 has a second blocking wall 1143. When the back cover 120 is in the closed position, the first blocking wall 1233 and the second blocking wall 1143 are arranged at intervals. When the back cover 120 is lifted relative to the outer shell 110, the first blocking wall 1233 and the second blocking wall 1143 approach each other until the first blocking wall 1233 and the second blocking wall 1143 abut against each other, so that the back cover 120 cannot continue to move relative to the outer shell 110, so that the back cover 120 is kept in the lifted position, and the maximum movement position of the back cover 120 relative to the outer shell 110 is better limited.

[0385] When arranging the air inlet and outlet holes on the rear cover 120, refer to Fig.44 , Fig.45 In the scheme where the rear cover 120 is rotatably connected to the housing 110, the first edge wall 123 includes two first side walls 1231 and a second side wall 1232, the two first side walls 1231 are spaced apart along the direction of the rotation axis 120a of the rear cover 120, and the second side wall 1232 is located between the two first side walls 1231 and spaced apart from the rotation axis 120a of the rear cover 120. The first air inlet 1231a is provided on the first side wall 1231, the first air outlet 1232a is provided on the second side wall 1232, and the air outlet side of the fan 182 is arranged opposite to the second side wall 1232. Fig.44 The arrows in the diagram indicate the direction of airflow. Figure 4 In (b), when the bracket 140 supports the housing 110 and the back cover 120 is in the raised position, the first air inlet 1231a, the heat dissipation channel 101 and the first air outlet 1232a are connected in sequence, and the air-cooling heat dissipation module 180 starts to work. The airflow enters the heat dissipation channel 101 from the first air inlet 1231a located next to the back cover 120, takes away the heat generated by the heating element 300, and is discharged from the first air outlet 1232a located above the back cover 120, realizing a method in which the cold air flows next to and then the hot air flows out from the top, which is conducive to the realization of air-cooling heat dissipation.

[0386] In the case where the housing 110 is also provided with air inlet and air outlet holes, see Fig.41 Similarly, the second edge wall 114 includes two third side walls 1141 and a fourth side wall 1142. The two third side walls 1141 are spaced apart along the rotation axis of the rear cover, and the fourth side wall 1142 is located between the two third side walls 1141 and spaced apart from the rotation axis of the rear cover. The second air inlet 1141a is provided on the third side wall 1141, and the second air outlet 1142a is provided on the fourth side wall 1142. Fig.42 , Fig.43When the rear cover 120 is in the closed position, the first edge wall 123 is located on the inner side of the second edge wall 114, that is, the first side wall 1231 is located on the inner side of the third side wall 1141, and the second side wall 1232 is located on the inner side of the fourth side wall 1142. The first air inlet 1231a and the second air inlet 1141a are connected in the airflow direction, and the first air outlet 1232a and the second air outlet 1142a are connected in the airflow direction. When the rear cover 120 is in the closed position, the air cooling and heat dissipation module 180 starts to work, and the airflow passes through the second air inlet 1141a next to the housing 110 and the first air inlet 1231a next to the rear cover 120 to enter the heat dissipation channel 101, taking away the heat generated by the heating element 300, and the airflow passes through the first air outlet 1232a on the upper side of the rear cover 120 and the second air outlet 1142a on the upper side of the housing 110 to be discharged, so as to realize the mode that the cold airflow is next to and then the hot airflow is discharged from the upper side, which is conducive to the realization of air cooling and heat dissipation.

[0387] In order to make the host end 1000 enter the frame and frequency limit mode in a high temperature environment, in some embodiments, refer to Figure 4 , Fig.41 The housing assembly 100 is provided with a temperature sensor 190 for detecting the temperature of the heating element 300 , and the host end 1000 is configured to switch to the frame and frequency limit mode when the detected temperature of the temperature sensor 190 exceeds the frame and frequency limit temperature value.

[0388] The operating temperature of the heating element 300 is detected by the temperature sensor 190 on the housing assembly 100. When the temperature exceeds a predetermined temperature value, the host end 1000 enters a frame-limited and frequency-limited mode, i.e., a low-performance operation mode, which limits the operating frequency of the processor and the frame rate of the screen to a low level, reduces the heat generated by the heating element 300, and prevents the heating element 300 from continuing to work at a high temperature, so as to meet the general use needs of the user. The temperature sensor 190 is electrically connected to the processor, and the temperature value detected by the temperature sensor 190 is fed back to the processor, which determines the comparison between the detected temperature value and the preset frame-limited and frequency-limited temperature value. When the detected temperature value is greater than or equal to the frame-limited and frequency-limited temperature value, the processor switches the host end 1000 to the frame-limited and frequency-limited mode.

[0389] In some embodiments, see Figure 41 to Figure 43 The back cover 120 has a first air inlet 1231a and a first air outlet 1232a, the housing 110 has a second air inlet 1141a and a second air outlet 1142a, and an air cooling and heat dissipation module 180 is provided between the housing 110 and the back cover 120. When the back cover 120 is in a closed position or a raised position, air cooling and heat dissipation can be performed through the air cooling and heat dissipation module 180. A temperature sensor 190 for detecting the temperature of the heating element 300 is provided on the housing assembly 100. According to different temperature values ​​of the heating element 300, the host end 1000 can perform air cooling and heat dissipation, lift the back cover 120 or control the performance mode.

[0390] Exemplary, combined Fig.46 , a first temperature value and a second temperature value are set for the host end 1000, and the first temperature value is less than the second temperature value. When the detected temperature of the temperature sensor 190 is greater than or equal to the first temperature value, the fan 182 is started to work, and the air cooling and heat dissipation module 180 performs air cooling and heat dissipation on the heating element 300, and air is in and out through the second air inlet 1141a and the second air outlet 1142a of the housing 110, and the first temperature value is the fan start-up temperature value.

[0391] As the system load increases, the temperature continues to rise. When the detected temperature of the temperature sensor 190 is greater than or equal to the second temperature value, the air inlet and outlet efficiencies of the second air inlet 1141a and the second air outlet 1142a of the housing 110 cannot support the high-load heat dissipation work. The host end 1000 can be set to enter a high-performance operating mode or a low-performance operating mode, or the two operating modes can be displayed on the user interface of the display screen 200 for the user to choose.

[0392] When entering the high-performance operation mode, the lifting mechanism 130 is turned on to drive the back cover 120 to move, so that the back cover 120 switches from the closed position to the lifted position. On the basis of the second air inlet hole 1141a and the second air outlet hole 1142a of the outer shell 110, the first air inlet hole 1231a and the first air outlet hole 1232a of the back cover 120 are involved in the air inlet and outlet. The heat dissipation channel 101 formed between the outer shell 110 and the back cover 120 has a larger volume, a smaller internal air cooling resistance, and an improved air cooling efficiency. The heating element 300 is efficiently cooled by air, so that the host end 1000 is maintained in the high-performance operation mode.

[0393] When entering the low-performance operation mode, the lifting mechanism 130 does not move, the back cover 120 remains in the closed position, and the system temperature is high. In order to protect the internal components of the host end 1000 from heat damage and the user's high-temperature usage experience, the system adopts a low-performance operation mode with limited frames and frequencies to reduce the heat generated by the heating element 300 to lower the temperature.

[0394] Finally, it should be noted that the above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A housing assembly, characterized in that: include: Housing, back cover, lifting mechanism and bracket; The rear cover is movably mounted on the housing so that the rear cover can be switched between a closed position and a raised position; a heating element can be arranged between the housing and the rear cover; When the rear cover is in the closed position, the rear cover and the housing are overlapped; When the rear cover is in the raised position, the rear cover and the outer shell are separated from each other, and a heat dissipation channel for air cooling and heat dissipation of the heating element is formed between the outer shell and the rear cover; The lifting mechanism is disposed on the housing and is used to drive the rear cover to switch between the closed position and the lifted position; The bracket is connected to the shell.

2. The housing assembly according to claim 1, characterized in that: The rear cover is rotatably connected to the outer shell; or, the rear cover is linearly movably connected to the outer shell.

3. The housing assembly according to claim 1 or 2, characterized in that: The rear cover and the bracket are located on the same side of the housing; when the rear cover is in the closed position, the bracket can be stacked on the housing so that the rear cover and the bracket are flush; Or, when the rear cover is rotatably connected to the housing, the bracket is rotatably connected to the housing, the rear cover and the bracket are located on the same side of the housing, and the rotation axis of the rear cover and the rotation axis of the bracket are parallel and arranged in the middle of the housing; Or, when the rear cover is rotatably connected to the housing, the rear cover and the housing are rotatably connected via a rear cover shaft assembly, wherein the rear cover shaft assembly comprises a first arcuate portion provided on the housing and a second arcuate portion provided on the rear cover, the axis of the first arcuate portion coincides with the axis of the second arcuate portion, and the first arcuate portion and the second arcuate portion are slidably matched to enable the rear cover to be rotatably connected to the housing; Or, when the rear cover is connected to the housing in a linearly movable manner, the rear cover can move linearly along the thickness direction of the housing; Alternatively, when the rear cover is connected to the outer shell in a linearly movable manner, the rear cover and the outer shell are connected via a scissor mechanism.

4. The housing assembly according to any one of claims 1 to 3, characterized in that: The bracket and the shell are rotationally connected via a bracket shaft assembly, and the bracket shaft assembly can provide a torque to make the bracket suspend relative to the shell.

5. The housing assembly according to claim 4, characterized in that: The bracket shaft assembly includes a fixed seat and a rotating member; the rotating member has a first arc structure, the fixed seat has a second arc structure, the axis of the first arc structure coincides with the axis of the second arc structure, the first arc structure and the second arc structure are slidably matched to enable the rotating member to be rotatably connected to the fixed seat, the fixed seat is connected to the outer shell, and the rotating member is connected to the bracket.

6. The housing assembly according to claim 5, characterized in that: The fixing seat includes a main body and an accessory part, the accessory part has a third arc structure, the main body has a fourth arc structure, the axes of the second arc structure, the third arc structure and the fourth arc structure coincide with each other, the third arc structure and the fourth arc structure are slidably matched to make the accessory part rotatably connected to the main body, the main body is fixed to the outer shell, the second arc structure is arranged on a side of the accessory part facing away from the third arc structure, and the rotating member is rotatably connected to the accessory part; when the rotating member rotates to a predetermined angle, the accessory part rotates with the rotating member.

7. The housing assembly according to claim 5 or 6, characterized in that: The support shaft assembly also includes a torsion connector and a torsion slide; The torsion connector has a first end and a second end which are arranged opposite to each other, the first end of the torsion connector is rotatably connected to the rotating member, and the rotation axis of the first end of the torsion connector and the rotation axis of the rotating member are arranged parallel and spaced apart; The torsion sliding member is slidably mounted in the limiting groove of the fixing seat, and the second end of the torsion connecting member and the torsion sliding member are interference fit; During the rotation of the rotating member relative to the fixed seat, the torsion connecting member moves along with the rotating member, the torsion sliding member slides along with the torsion connecting member in the limiting groove, the second end of the torsion connecting member rotates relative to the torsion sliding member, and the friction between the torsion sliding member and the second end of the torsion connecting member generates a torsion that causes the rotating member to suspend relative to the fixed seat.

8. The housing assembly according to claim 7, characterized in that: A connecting shaft is provided at the first end of the torsion connecting member, and the connecting shaft is rotatably connected to the connecting hole of the rotating member so that the torsion connecting member rotates around the axis of the connecting hole; And / or, the second end of the torsion connector has a torsion bag, the torsion sliding member includes a pin, the length direction of the pin is parallel to the rotation axis of the rotating member, and the torsion bag is sleeved outside the pin and has an interference fit; And / or, the limiting groove is a linear groove, and the length direction of the limiting groove is perpendicular to the rotation axis of the rotating member; And / or, the limiting grooves are arranged in pairs and at intervals, and the torsion sliding member comprises a pin shaft, and both ends of the pin shaft are slidably mounted on the limiting grooves arranged in pairs and at intervals, respectively; And / or, the torsion sliding member is provided with a connecting portion, and the connecting portion is slidably mounted on the limiting groove, so that the torsion sliding member slides along the extension route of the limiting groove.

9. The housing assembly according to claim 7 or 8, characterized in that: The bracket shaft assembly is connected to the lifting mechanism, and the lifting mechanism is configured to be driven by the bracket shaft assembly during the process of the bracket rotating relative to the housing by a predetermined angle, so that the rear cover switches between the closed position and the lifted position.

10. The housing assembly according to claim 9, characterized in that: The lifting mechanism includes a swinging member and a connecting rod; The swing member is rotatably connected to the housing, and has a first end and a second end that are arranged opposite to each other, the first end of the swing member is arranged away from the support shaft assembly and connected to the rear cover, and the second end of the swing member is arranged toward the support shaft assembly and has a guide groove extending along a predetermined route; One end of the connecting rod is connected to the torsion sliding member to move with the torsion sliding member, and the other end of the connecting rod has a sliding shaft, which is inserted into the guide groove and can move along the guide groove; When the bracket rotates relative to the housing at a predetermined angle, the connecting rod moves along the limiting groove following the torsion sliding member, the sliding shaft can drive the swinging member to rotate relative to the housing, and the back cover moves following the swinging member.

11. The housing assembly according to claim 10, characterized in that: The housing is provided with a support seat, the support seat has a mounting hole, a fixed shaft is provided at the rotation axis of the swinging member, the fixed shaft passes through the mounting hole and can rotate around the axis of the mounting hole; And / or, a locking member is fixed on the rear cover, a gap is formed between the rear cover and the locking member for accommodating the first end of the swinging member, and the first end of the swinging member is located between the rear cover and the locking member.

12. The housing assembly according to claim 10 or 11, characterized in that: The guide groove comprises a climbing section and a holding section which are connected to each other, and the climbing section and the holding section are arranged along the direction from the first end to the second end of the swinging member; When the sliding shaft slides against the climbing section, the sliding shaft can drive the swinging member to rotate, and the rear cover moves along with the swinging member; When the sliding shaft is slidably abutted against the retaining section, the swinging member remains stationary relative to the rear cover, and the rear cover remains in the raised position.

13. The housing assembly according to claim 12, characterized in that: The guide groove further comprises a virtual position section, and one end of the climbing section away from the holding section is connected to the virtual position section.

14. The housing assembly according to any one of claims 1 to 8, characterized in that: The shell assembly is provided with a temperature sensor for detecting the temperature of the heating element, and the lifting mechanism is configured to drive the back cover to move when the detected temperature of the temperature sensor exceeds the back cover lifting temperature value, so that the back cover switches from the closed position to the lifted position.

15. The housing assembly according to any one of claims 1 to 8 and 14, characterized in that: The lifting mechanism includes a rotating driving member and a first transmission assembly, the output end of the rotating driving member is connected to the input end of the first transmission assembly, and the output end of the first transmission assembly is connected to the rear cover so that the rear cover moves following the output end of the first transmission assembly.

16. The housing assembly according to claim 15, characterized in that The first transmission assembly includes a worm gear assembly, a gear rack assembly and a slideway assembly; the worm gear assembly includes a worm and a worm wheel of meshing transmission, and the worm serves as an input end of the first transmission assembly; The gear rack assembly comprises a first gear, a second gear and a rack, the worm gear and the first gear are synchronously rotated and connected, the first gear and the second gear are matched in transmission, the second gear and the rack are meshed in transmission, and the rack is slidably mounted on the housing; The slide assembly includes a first slide rod and a first sliding member, the first slide rod is fixed on the rack, the first sliding member has a first slide groove extending along a predetermined route, the first sliding member serves as the output end of the first transmission assembly, the first slide rod is inserted into the first slide groove and can slide along the first slide groove to drive the first sliding member to move relative to the housing, and the back cover moves following the first slide member.

17. The housing assembly according to claim 16, characterized in that The housing is provided with a gear box, and the worm wheel, the worm, the first gear and the second gear are mounted on the gear box; And / or, the housing is provided with a first guide rod extending along the length direction of the rack, the rack has a first groove extending along the length direction of the rack, and the first guide rod is embedded in the first groove to enable the rack to slide along the length direction of the first guide rod; And / or, the back cover includes a first plate body, the first slide groove is a linear groove, the first slide groove has a first end and a second end opposite to each other, the first end of the first slide groove is arranged toward the bracket and the first plate body, and the second end of the first slide groove is arranged away from the bracket and the first plate body; when the first slide rod is located at the first end of the first slide groove, the back cover is in the closed position; when the first slide rod is located at the second end of the first slide groove, the back cover is in the raised position.

18. The housing assembly according to any one of claims 1 to 8, characterized in that: The lifting mechanism includes a sliding key and a second transmission assembly, the sliding key is slidably installed on the shell, the sliding key is connected to the input end of the second transmission assembly, the output end of the second transmission assembly is connected to the back cover, and the output end of the second transmission assembly is connected to the back cover so that the back cover moves following the output end of the second transmission assembly.

19. The housing assembly according to claim 18, characterized in that The second transmission assembly includes a second sliding rod and a second sliding member, the second sliding rod serves as the input end of the second transmission assembly, the second sliding member has a second sliding groove extending along a predetermined route, the second sliding member serves as the output end of the second transmission assembly, the second sliding rod is inserted into the second sliding groove and can slide along the second sliding groove to drive the second sliding member to move relative to the housing, and the back cover moves following the second sliding member.

20. The housing assembly according to any one of claims 1 to 19, characterized in that: One lifting mechanism is arranged at two opposite ends of the housing corresponding to the rear cover area; Alternatively, the lifting mechanism is arranged at one end of the housing corresponding to the rear cover area.

21. The housing assembly according to any one of claims 1 to 20, characterized in that: An air-cooling heat dissipation module is provided between the shell and the back cover. The air-cooling heat dissipation module is installed on the inner side surface of the shell or the inner side surface of the back cover. The air-cooling heat dissipation module is connected to the heating element to cool the heating element by air.

22. The housing assembly according to claim 21, characterized in that The air-cooling heat dissipation module comprises a fin heat sink and a fan. The fin heat sink is connected to the heating element. The fan and the fin heat sink are arranged relative to each other to air-cool the fin heat sink.

23. The housing assembly according to claim 22, characterized in that The air-cooled heat dissipation module further includes a heat-dissipating member, wherein the heat-dissipating member has an evaporation zone and a condensation zone arranged at intervals, wherein the evaporation zone is connected to the heating element, and the fin heat sink is connected to the condensation zone; And / or, the housing assembly is provided with a temperature sensor for detecting the temperature of the heating element, and the fan is configured to start working when the temperature detected by the temperature sensor exceeds a fan start-up temperature value.

24. The housing assembly according to any one of claims 1 to 23, characterized in that: The back cover comprises a first plate body and a first edge wall connected to each other, wherein the first edge wall has a first air inlet and a first air outlet; The housing comprises a second plate body and a second edge wall connected to each other; the first plate body and the second plate body are arranged opposite to each other, and the first edge wall and the second edge wall are arranged opposite to each other; When the rear cover is in the closed position, the first edge wall is entirely located on the inner side of the second edge wall; When the rear cover is in the raised position, the first edge wall is at least partially exposed, so that the first air inlet and the first air outlet are exposed.

25. The housing assembly according to claim 24, characterized in that The second edge wall has a second air inlet and a second air outlet; when the rear cover is in the closed position, the first air inlet and the second air inlet are connected along the airflow direction, and the first air outlet and the second air outlet are connected along the airflow direction; when the rear cover is in the raised position, the first air inlet and the first air outlet are both exposed, and the second air inlet and the second air outlet are both exposed; and / or, when the rear cover is in the closed position, the first plate body and the second plate body are parallel; And / or, when the back cover is in the raised position, the first edge wall is disposed away from the first plate body and the second edge wall is disposed close to the second plate body.

26. An electronic device, characterized in that: It includes a host end, which includes a display screen and a shell assembly as described in any one of claims 1 to 25, the display screen is arranged on the front side of the shell, the bracket and the back cover are both arranged on the back side of the shell, and the heating element is arranged between the shell and the back cover.

27. The electronic device according to claim 26, characterized in that: It also includes a keyboard end, and the host end and the keyboard end are detachably connected.

28. The electronic device according to claim 26 or 27, characterized in that: The housing assembly is provided with a temperature sensor for detecting the temperature of the heating element, and the host end is configured to switch to a frame and frequency limit mode when the detected temperature of the temperature sensor exceeds a frame and frequency limit temperature value.

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