A laptop computer

Abstract

The present invention provides a laptop computer, comprising a screen assembly and a host assembly, wherein the screen assembly is rotatably connected to the host assembly via a screen shaft; further comprising a bottom support, wherein the bottom support is arranged at the bottom of the host assembly; the bottom support is provided with a connecting mechanism at one end close to the screen shaft, wherein one end of the connecting mechanism is connected to the bottom support, and the other end of the connecting mechanism is connected to the screen assembly; under the action of an external force, when the screen assembly switches from a closed state to an open state, the screen assembly drives the connecting mechanism to move, so that the bottom support moves from close to the bottom of the host assembly to a direction away from the bottom of the host assembly. The laptop computer overcomes the defects in the prior art that a laptop base needs to be carried to increase ventilation of the laptop computer, and the laptop base needs to be adjusted and set separately.

Description

Technical Field

[0001] The invention relates to the technical field of notebook computer heat dissipation, and in particular to a notebook computer with increased air intake volume. Background Art

[0002] The laptop shell is divided into four main shells in the industry: A shell refers to the back cover of the screen, that is, the cover at the top when the laptop is closed; B shell refers to the front frame of the screen, that is, the frame visible around the screen when the laptop is opened. Shells A and B together constitute the shell of the screen assembly; and shells C and D together constitute the shell of the host assembly. Shell C refers to the upper cover of the host, that is, the cover around the keyboard, usually including the palm rest and touchpad, and shell D refers to the lower shell of the host, that is, the shell at the bottom when the laptop is in use. Because shell D also includes the side walls that constitute the thickness of the host, it contains the host circuit components that generate a lot of heat, and its visual visibility is the lowest under normal use, so it becomes the main shell for setting heat dissipation vents. However, because the distance between shell D and the desktop is entirely limited by the height of the bottom plate foot pad, the air inlet channel is very narrow, resulting in a small amount of air intake at the bottom of the notebook, thereby reducing the heat dissipation effect of the notebook.

[0003] Therefore, in order to increase the air intake and improve the heat dissipation effect of the laptop, products such as laptop bases that raise the bottom of the laptop to increase the air intake of the D-shell were subsequently developed, such as foldable bases. However, since the foldable base needs to be adjusted and installed separately when it is raised, it is very inconvenient to use. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect in the prior art that a laptop base needs to be carried at the same time for increasing ventilation of the laptop, which causes inconvenience to the user, thereby providing a laptop computer with a higher level of ventilation and easier operation.

[0005] In order to solve the above technical problems, the present application provides a laptop computer, comprising a screen assembly and a host assembly, wherein the screen assembly is rotatably connected to the host assembly via a screen shaft;

[0006] It also includes a bottom support, which is arranged at the bottom of the host assembly; the bottom support is provided with a connecting mechanism at one end close to the screen shaft, one end of the connecting mechanism is connected to the bottom support, and the other end of the connecting mechanism is connected to the screen assembly;

[0007] Under the action of external force, when the screen assembly switches from a closed state to an open state, the screen assembly drives the connecting mechanism to move, so that the bottom support moves from close to the bottom of the host assembly to away from the bottom of the host assembly.

[0008] Optionally, the connection mechanism includes a connecting rod;

[0009] The connecting rod is in transmission connection with the screen assembly through a transmission assembly. When the screen assembly rotates around the screen rotation axis, it drives the connecting rod to perform a swinging motion. The connecting rod drives the bottom support to move through the swinging motion.

[0010] Optionally, the screen shaft is fixedly connected to the screen assembly, and the screen shaft is rotationally connected to the host assembly; the transmission assembly includes:

[0011] A driving gear connected to the screen shaft and coaxial with the screen shaft;

[0012] A driven gear, disposed on the connecting rod, the driven gear meshing with the driving gear;

[0013] The casing shell is arranged on the main engine assembly; the driven gear is rotationally connected to the casing shell.

[0014] Optionally, the driven gear is located closer to the front end of the main assembly relative to the driving gear.

[0015] Optionally, a transmission ratio between the driving gear and the driven gear is greater than 1.

[0016] Optionally, a vertical plate is provided on the top surface of the bottom support, a track groove is provided on the vertical plate, a swing end is provided at one end of the connecting rod close to the bottom support, and a sliding block is provided on the swing end which is slidably connected to the track groove.

[0017] Optionally, the track groove includes a lifting section and a maintaining section. When the screen assembly switches from the closed state to the open state, the slider passes through the lifting section and the maintaining section in sequence. The path of the maintaining section is an arc shape. After the slider enters the maintaining section, the center of the arc coincides with the swing axis of the connecting rod.

[0018] Optionally, the end of the lifting section is located closer to the top of the vertical board relative to the head end of the lifting section.

[0019] Optionally, there is a smooth transition between the lifting section and the maintaining section.

[0020] Optionally, the bottom support is a plate-shaped structure, one end of the bottom support is provided with a bottom support shaft hole, the bottom support shaft hole is used to be rotatably connected to the main engine assembly, and the other end of the bottom support is connected to the connecting rod.

[0021] By adopting the above technical solution, the present invention has the following technical effects:

[0022] 1. The laptop computer provided by the present invention, after the screen assembly is opened, will drive the bottom support to move from the bottom close to the host assembly to the direction away from the bottom of the host assembly. The host assembly will be lifted up as a whole due to the height change of the bottom support, increasing the ventilation of the laptop computer D shell, thereby replacing the existing laptop base designed to increase ventilation, so that people do not need to carry a laptop base when carrying a laptop computer, making it easier for users to use the laptop computer. The raising action of this structure is synchronously linked with the opening of the screen assembly. When using a laptop computer, the user will inevitably lift the cover. This structure automatically and synchronously completes the raising operation under the user's inevitable operation action, simplifying the user operation, especially avoiding the problem that the user forgets to raise the laptop for ventilation, causing the computer to overheat and freeze, affecting work and life. In short, it overcomes the defect of the prior art laptop computer that needs to be raised deliberately due to insufficient ventilation. Its raising operation is linked with the action of lifting the screen assembly, and it is very simple and easy to use.

[0023] 2. The laptop computer provided by the present invention uses the swing of the connecting rod to drive the bottom support to move. The structure is simple and reliable and the manufacturing cost is low.

[0024] 3. The structure for increasing the air intake of a laptop computer provided by the present invention not only maintains a fixed ratio transmission between the connecting rod and the screen connecting piece through gear transmission, so that the screen assembly can obtain a corresponding amount of cushioning after being lifted to a certain angle, thereby ensuring ventilation effect; and because the gears are relatively high compared to other fixed ratio transmission methods, they can adapt to relatively high workloads, avoid accidental damage to the structure, and ensure product reliability; in addition, the connecting rod does not have to be limited to the screen connecting piece, which facilitates the layout design of related structures and allows the product structure to be flexibly responded to according to different situations.

[0025] 4. The structure for increasing the air intake of a laptop computer provided by the present invention arranges the driven gear at a front end position closer to the host assembly relative to the driving gear, so that the connecting rod no longer protrudes behind the screen shaft, thereby no longer affecting the maximum external dimensions of the entire product; in particular, because the two gears are engaged, when the screen assembly rotates in a clockwise direction, for example, the connecting rod rotates counterclockwise, so that in the closed state the connecting rod can be further away from the area near the screen shaft with a very compact structural layout, making the product structural layout design simpler and more flexible.

[0026] 5. In the structure for increasing the air intake of a laptop computer provided by the present invention, the transmission ratio of the driving gear to the driven gear is greater than 1. This arrangement meets the different rotation amplitude requirements between the two components and avoids excessive swinging of the connecting rod to reduce the already opened ventilation channel.

[0027] 6. The structure for increasing the air intake of a laptop computer provided by the present invention has a vertical plate on the top surface of the bottom support, a track groove on the vertical plate, and a slider slidably connected to the track groove at the swing end of the connecting rod; the two side walls of the track groove are respectively located at opposite upper and lower sides, and the groove wall on the lower side is pressed by the slider moving with the connecting rod when it needs to be raised, thereby driving the bottom support to move downward, and when it needs to fall back, the groove wall on the upper side is pushed by the slider to move the bottom support upward, and the opening and closing of the bottom support is completely controlled by the connecting rod. On the one hand, it can prevent the bottom support from being accidentally opened, and on the other hand, when foreign objects are stuck between the bottom support and the host assembly and hinder their closure, an elastic retraction method is adopted, and this blocking is not easily noticed by the user. The structure enables the user to feel obvious blocking feedback when closing the screen assembly, and then remove the foreign objects in time to ensure that the laptop computer is properly closed.

[0028] 7. The structure for increasing the air intake of a laptop computer provided by the present invention comprises a track groove including a lifting section and a maintaining section, so that the bottom support can maintain an open range after the screen assembly is lifted to a certain angle. On the one hand, the size of the ventilation channel does not change with the customer's adjustment of the screen assembly, thereby ensuring the ventilation effect; on the other hand, the opening range of the bottom support is maintained regardless of the change of the screen opening angle, so that the keyboard can always be maintained at a preferred tilt angle, meeting the customer's comfort typing requirements; on still another hand, when the user adjusts the tilt angle of the screen assembly, the screen assembly only swings in tilt and does not move up and down, which is beneficial to the customer's control of the screen and allows the customer to quickly find the corresponding screen posture that meets their needs.

[0029] 8. In the structure for increasing the air intake of a laptop computer provided by the present invention, the end of the lifting section is located closer to the top of the vertical plate relative to the head end of the lifting section; in this way, the moving height of the bottom support is not only determined by the length and swing angle of the connecting rod, but also the height difference between the head end of the lifting section and the end end can be used to contribute to a greater movement of the bottom support, so that the slider can quickly open the bottom support at the initial stage of the swing of the connecting rod, and when the size of related components is limited, a larger displacement of the bottom support can be obtained, so that the D-shell ventilation channel can obtain a larger opening.

[0030] 9. The structure for increasing the air intake of a laptop computer provided by the present invention has a smooth transition between the lifting section and the maintaining section. The smooth transition between the lifting section and the maintaining section can ensure that the slider always maintains smooth sliding when the screen assembly is tilted. The user will not feel any obstruction or jamming during operation, thereby enhancing the user experience.

[0031] 10. The structure for increasing the air intake of a laptop computer provided by the present invention has a plate-like bottom support, one end of which is provided with a bottom support shaft hole, which is used to cooperate with a corresponding rotating shaft to achieve a rotational connection with the host assembly, and the other end of the bottom support is connected to a connecting rod; such a plate-like support can adapt to a soft supporting body, and even if the base is soft, it can stably and reliably open a ventilation channel for the D-shell; in addition, the bottom support of this structure is also rotationally connected to the host assembly, so that the bottom support also plays the role of an oblique support for the keyboard; in addition, such a swinging bottom support will not cause a displacement change of the laptop computer on the desktop when it is opened and retracted, and will not affect the normal use experience of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 It is a schematic right view of the structure of the embodiment of the present invention in a closed state;

[0034] Figure 2 It is a schematic right side view of the structure of the embodiment of the present invention in the open state;

[0035] Figure 3 for Figure 2 A partial enlarged view of point B in the middle

[0036] Figure 4 An exploded view showing the separation of some components of the air inlet structure added according to an embodiment of the present invention;

[0037] Figure 5 It is a schematic bottom view of the structure of the added air inlet structure in a closed state according to an embodiment of the present invention;

[0038] Figure 6 It is a schematic top view of the structure of the added air inlet structure in a closed state according to an embodiment of the present invention;

[0039] Figure 7 for Figure 6 A partial enlarged view of point A in the middle;

[0040] Figure 8 It is a schematic right view of the structure of the added air inlet structure in the closed state according to the embodiment of the present invention;

[0041] Fig. 9 It is a right side cross-sectional view showing the structure of the added air inlet structure in a closed state according to an embodiment of the present invention;

[0042] Fig.10 It is a schematic right view of the structure of the added air inlet structure in the embodiment of the present invention in the open state;

[0043] Fig.11 Schematic diagram of the track groove structure of an embodiment of the present invention.

[0044] Description of reference numerals:

[0045] 1-screen assembly, 2-host assembly, 3-screen connector, 4-screen shaft, 5-connecting rod, 6-bottom support, 61-bottom support plate, 62-bottom support adhesive strip, 7-receiver housing, 8-driving gear, 9-driven gear, 10-vertical plate, 11-track groove, 12-lifting section, 13-maintaining section, 14-bottom support shaft hole, 15-center of circle, 16-foot pad, 17-slider. DETAILED DESCRIPTION

[0046] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] It should be noted in the description of the present invention that the coordinate system used in this specification when describing the orientation is determined by the posture of the laptop computer in normal use, and the naming of the observation angles of the corresponding views is also based on this. Therefore, the orientations or positional relationships indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. in this specification are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 invention.

[0048] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0050] This embodiment provides a laptop computer, which includes a screen component 1 and a host component 2 (see Figure 1 and 2 ), the screen assembly 1 and the host assembly 2 are rotatably connected by the screen shaft 4, and the two can switch between a closed state in close contact with each other and an open state forming an angle. Specifically, an implementation method of this embodiment is as follows Figure 4 The screen connector 3 shown connects the screen assembly 1 and the screen hinge 4 .

[0051] In this embodiment, an air inlet structure is provided between the screen assembly 1 and the host assembly 2 .

[0052] In one embodiment, if Figures 4 to 11 As shown, the increased air intake structure includes a bottom support 6, which is arranged at the bottom of the main unit assembly 2; the bottom support 6 is provided with a connecting mechanism at one end close to the screen shaft 4, one end of the connecting mechanism is connected to the bottom support 6, and the other end of the connecting mechanism is connected to the screen assembly 1; under the action of external force, when the screen assembly 1 switches from a closed state to an open state, the screen assembly 1 drives the connecting mechanism to move, so that the bottom support 6 moves from close to the bottom of the main unit assembly 2 to away from the bottom of the main unit assembly 2.

[0053] Based on the above embodiment, in an optional embodiment, the connection mechanism includes a cam fixedly connected to the screen shaft 4. As the cam rotates with the screen shaft 4, the raised end thereof is driven to push the bottom support 6 to move.

[0054] In another preferred embodiment, Figure 7 , 9 As shown in FIG. 10 , the connecting mechanism includes a connecting rod 5; the connecting rod 5 is in transmission connection with the screen assembly 1, and the screen assembly 1 drives the connecting rod 5 to swing when rotating around the screen shaft 4, and the connecting rod 5 drives the bottom support 6 to move through the swinging motion. Compared with a cam, the connecting rod 5 of this embodiment is simple to manufacture and inexpensive.

[0055] In this embodiment, after the screen assembly 1 is opened, the screen connector 3 drives the connecting rod 5 to swing, and the rotational swing causes the length of the connecting rod 5 to change in the height direction, for example Fig. 9 The middle link 5 is in a substantially horizontal position, and the component of the length of the link in the height direction is substantially zero. Fig.10When the laptop is in the middle position, the height component of the rod length accounts for the vast majority of the total rod length. This change will drive the bottom support 6 located on the bottom surface of the host assembly 2 to move in a direction away from the bottom surface of the host assembly 2. Therefore, when there is a support such as a desktop under the laptop, the host assembly 2 will be lifted as a whole due to the change in the height component of the connecting rod 5, increasing the ventilation of the laptop D shell, thereby replacing the existing laptop base designed to increase ventilation, so that people do not need to carry a laptop base when carrying a laptop, making it easier for users to use the laptop. In addition, the raising action of this embodiment is synchronized with the opening action of the screen assembly 1. When using a laptop, the user will inevitably perform the cover opening action. This embodiment automatically and synchronously completes the raising operation under the user's inevitable operation steps, which simplifies the user's operation, especially avoiding the problem that the user forgets to raise the laptop for ventilation, causing the computer to overheat and freeze, affecting work and life.

[0056] Based on the above embodiment, in a preferred embodiment, the connecting rod 5 can be directly fixedly connected to the screen connecting member 3 to achieve transmission between the connecting rod 5 and the screen connecting member 3. The transmission structure is simple and reliable, and the cost is relatively low.

[0057] Based on the above embodiment, in a replaceable preferred embodiment, the connecting rod 5 can be connected to the screen connecting member 3 through a transmission assembly to achieve the linkage between the two. Specifically, Figure 7 , 9 As shown in 10, the transmission assembly includes: a receiver shell 7, which is used to connect the main assembly 2; a driving gear 8, which is fixedly connected to the screen connecting member 3 and is coaxial with the screen rotating shaft 4; a driven gear 9, which is rotationally connected to the receiver shell 7, fixedly connected to the connecting rod 5, and meshed with the driving gear 8.

[0058] This embodiment uses gear transmission to not only maintain a fixed ratio transmission between the connecting rod 5 and the screen connector 3, so that the screen assembly 1 can obtain a corresponding amount of cushioning after being lifted to a certain angle, thereby ensuring ventilation effect; and because gears are relatively high in workload compared to other fixed ratio transmission methods, they can avoid accidental damage to the structure and ensure product reliability; in addition, the connecting rod 5 does not need to be limited to being set on the screen connector 3, which facilitates the layout design of related structures and allows the product structure to be flexibly adapted to different situations.

[0059] Regarding the above-mentioned product structure layout, for example, in the solution where the connecting rod 5 and the screen connecting member 3 are fixedly connected, when the screen assembly 1 is flipped up (i.e. Fig. 9 In order to realize the function of increasing the component in the height direction, the connecting rod 5 must be located at the rear side of the screen shaft 4 (i.e. Fig. 9The connecting rod 5 is rotated downward (right side in the viewing angle), that is, when the laptop is in the closed state, the connecting rod 5 will protrude from the rear side of the screen hinge 4, which is disadvantageous for the structural layout of designing the screen hinge 4 at the rear side of the whole machine in order to reduce the size of the whole machine. As a more preferred embodiment, after the two are driven by gears, the driven gear 9 can be arranged at a position closer to the front end of the host assembly 2 relative to the driving gear 8 (i.e., Fig. 9 As shown in the position), the rear connecting rod 5 is arranged in this way so that it no longer protrudes behind the screen shaft 4, thereby no longer affecting the maximum external dimensions of the entire product; in particular, because the meshing of the two gears makes it possible to Fig. 9 When rotating in the clockwise direction, the connecting rod 5 rotates counterclockwise, so that in the closed state, the connecting rod 5 can be further away from the area near the screen shaft 4 with a very compact structure layout, making the product structure layout design simpler and more flexible.

[0060] Based on the above implementation, in a preferred embodiment, Fig. 9 As shown, the transmission ratio of the driving gear 8 to the driven gear 9 is greater than 1, that is, the number of teeth of the driven gear 9 / the number of teeth of the driving gear 8>1 (in the case of complete gears), which is specifically reflected in the figure that the pitch circle of the driving gear 8 is smaller than the pitch circle of the driven gear 9. Because the driving gear 8 rotates together with the screen assembly 1, it is sometimes opened to a rotation angle of 135° in normal use, while the connecting rod 5 that rotates with the driven gear generally only needs to move within a range of about 100° from the horizontal state to the vertical state. Therefore, the setting of a transmission ratio greater than 1 meets the different rotation amplitude requirements between the two components and avoids the problem of excessive swing of the connecting rod 5 causing the already opened ventilation channel to shrink again.

[0061] Based on the above embodiment, in an optional embodiment, the bottom support 6 is rotatably connected to the connecting rod 5 as a supporting block, and during the swinging process of the connecting rod 5, the supporting block changes from being in contact with the bottom surface of the main assembly 2 to protruding from the bottom surface, thereby serving as a supporting point to support the main assembly 2. The structure is simple, compact, and easy to manufacture.

[0062] The point-shaped supports can effectively lift the host assembly 2 only when they are matched with a hard support such as a desktop, thereby opening the ventilation channel for the D-shell; but when the laptop is placed on a soft support such as a bed, the point-shaped supports are easily sunk into the soft support, so that the ventilation channel cannot be opened as intended. Therefore, in a preferred embodiment, Figures 8 to 10As shown, the bottom support 6 is a plate-like structure, and a bottom support shaft hole 14 is provided at one end of the bottom support 6. The bottom support shaft hole 14 is used to cooperate with the corresponding rotating shaft to realize the rotation connection with the host assembly 2, and the other end of the bottom support 6 is connected to the connecting rod 5. This plate-like support can adapt to the soft supporting body, and even if the base is soft, it can stably and reliably open the ventilation channel for the D shell. In addition, the bottom support 6 of this structure is also rotationally connected to the host assembly 2. Because the connecting rod 5 is usually close to the screen rotating shaft 4 located at the rear end of the notebook computer, the bottom support shaft hole 14 located at the other end of the bottom support 6 will be set at the relatively front end of the host assembly 2. Therefore, when the bottom support 6 is opened, it will only lift the rear end of the host assembly 2, so that the host assembly 2 tilts forward. In this way, the keyboard located on the host assembly 2 can obtain an inclination angle with the movement, so that the keyboard can be more ergonomically in line with the typing needs of the human body. In other words, the bottom support 6 also plays the role of oblique support for the keyboard (see Figure 2 ). In addition, when the swing-type bottom support 6 is opened and retracted, it will not cause the displacement of the notebook computer on the desktop, and will not affect the normal use experience of the user.

[0063] Based on the above implementation, in a preferred embodiment, Figure 4 and 6 As shown, the bottom support 6 includes a bottom support plate 61 and a bottom support adhesive strip 62, the bottom support adhesive strip 62 is connected to the main body component 2 and the connecting rod 5, two sets of structural components with bottom support adhesive strips 62 are arranged on both sides of the notebook computer, and the bottom support plate 61 is attached to the two bottom support adhesive strips 62. Because the bottom support adhesive strip 62 needs to be connected to the main body component 2 and the connecting rod 5 respectively, its structure is relatively complex, and the difficulty and cost of mold development are relatively high, while the bottom support plate 61 is only a simple plate component, which is easy to manufacture. Therefore, this two-body separation structure reduces the mold development cost and is easy to assemble.

[0064] In addition, since the bottom support plate 61 is equivalent to a part of the bottom surface of the D-shell, and the bottom surface of the D-shell of the notebook computer is provided with a foot pad 16 , the rear foot pad 16 can be attached to the rear end of the bottom support plate 61 .

[0065] Based on the above embodiment, in an optional embodiment, the connecting rod 5 can only be in contact with the bottom support 6, and a tension spring is provided between the bottom support 6 and the main assembly 2, so that when the bottom support 6 needs to be raised, the connecting rod 5 squeezes the bottom support 6 to extend outward, and when it is restored, it retracts by the elastic force of the tension spring. This structure is relatively simple and easy to manufacture.

[0066] However, in the above embodiment, when the bottom support 6 is in the closed state, it is only kept in place by the elastic force of the tension spring, and it is easy to be accidentally opened due to external force acting on the bottom support 6 to overcome the elastic force. Fig.10As shown, a vertical plate 10 is provided on the top surface of the bottom support 6, a track groove 11 is provided on the vertical plate 10, and a slider 17 slidably connected to the track groove 11 is provided at the swing end of the connecting rod 5 (i.e., the end close to the bottom support 6 that can swing). Because the front end position of the bottom support 6 is limited by the bottom support shaft hole 14, in order to increase the height component of the connecting rod 5 during the swinging process, the path direction of the track groove 11 opened on the vertical plate 10 needs to be roughly in a flat state, so its two side walls will be respectively at the upper and lower sides relative to each other. When it needs to be raised, the groove wall on the lower side will be pressed by the slider 17 linked to the connecting rod 5 to drive the bottom support 6 to move downward, and when it needs to fall back, the groove wall on the upper side is pushed by the slider 17 to move the bottom support 6 upward. In this way, the opening and closing of the bottom support 6 is completely controlled by the connecting rod 5. On the one hand, it can prevent the bottom support 6 from being accidentally opened. On the other hand, because the bottom support 6 is opened on the back side of the laptop computer, it is usually difficult for the user to observe its status. When a foreign object is stuck between the bottom support 6 and the main assembly 2 and prevents it from closing, this blocking is not easy to be noticed by the user when the elastic retraction method is used. Under this embodiment, the user will feel obvious blocking feedback when closing the screen assembly 1, and then remove the foreign object in time to ensure that the laptop computer is properly closed.

[0067] In addition Figure 7 In the illustrated embodiment, in order to facilitate the matching of the connecting rod 5 with the vertical plate 10 through the slider 17 and to facilitate the connection of the casing shell 7 rotatably connected to the connecting rod 5 with the main unit assembly 2, the casing shell 7 of the present embodiment is in an M-shaped structure when viewed from above. The casing body in the middle is used to hold the gear mechanism and the connecting rod 5, and the two outermost side walls of the M-shape are provided with connecting plates for connecting to the main unit assembly 2. The gap between the casing body and the two side walls is used for inserting the vertical plate 10. The casing shell 7 with such a structure makes the overall structure of the mechanism very compact to meet the layout requirements of the limited space in the laptop computer.

[0068] Based on the above implementation, in a preferred embodiment, Fig.10 and 11 As shown, the track groove 11 includes a lifting section 12 and a maintaining section 13. When switching from the closed state to the open state, the slider 17 passes through the lifting section 12 and the maintaining section 13 in sequence. The path of the maintaining section 13 is an arc. After the slider 17 enters the maintaining section 13, the center 15 of the arc coincides with the swing axis of the connecting rod 5, that is, coincides with the swing axis of the connecting rod 5. Fig.10 The rotation axis of the driven gear 9 coincides.

[0069] When the user flips the laptop from the closed state to the open state, the slider 17 will first push the bottom support 6 downward in the lifting section 12. Then, when the screen assembly 1 is lifted to a predetermined angle (for example, 75°), the slider 17 will enter the maintaining section 13 from the lifting section 12. Since the maintaining section 13 is an arc-shaped section, the center 15 of its running trajectory coincides with the swing axis of the connecting rod 5. Therefore, no matter how the slider 17 rotates in the maintaining section 13, the distance between the vertical plate 10 and the swing axis of the connecting rod 5 will not change, thereby maintaining the opening range of the bottom support 6. In addition, the final length of the maintaining section 13 can be determined according to the maximum opening of the screen assembly 1. For example, it can be set to the position of the preferred maximum value of 135° under normal use (see Figure 2 and 3 The position indicated by the double-dotted line.

[0070] The reason why the bottom support 6 is kept open after the screen assembly 1 is lifted to a certain angle is that when using a laptop computer, the user will place the screen assembly 1 at different inclination angles according to specific circumstances (such as different heights of each person). On the one hand, the D-shell ventilation channel should meet certain opening requirements, and the size of the ventilation channel does not change with the customer's adjustment of the screen assembly 1, so that the ventilation effect can be guaranteed; on the other hand, as mentioned above, the bottom support 6 can play the role of an oblique support for the keyboard to make the keyboard placement more ergonomic, so the keyboard inclination angle has a relatively preferred value, and the opening range of the bottom support 6 is maintained without changing with the change of the screen opening angle, so that the keyboard can always be kept at the preferred inclination angle to meet the customer's comfort typing requirements; on the other hand, the user's sitting posture changes on the seat or due to screen reflection and other reasons, the screen assembly 1 will be adjusted accordingly. At this time, the screen assembly 1 only swings in inclination and does not move up and down, which is beneficial to the customer's control of the screen and can quickly find the corresponding screen posture that meets their needs.

[0071] Based on the above implementation, in a preferred embodiment, Fig.10 and 11 As shown, the end of the lifting section 12 is located closer to the top of the vertical plate 10 relative to the head end of the lifting section 12. The head end of the lifting section 12 mentioned here refers to the position of the slider 17 in the track groove 11 when the mechanism is in a closed state, and the end of the lifting section 12 refers to the position of the intersection with the maintaining section 13. After such a setting, the moving height of the rear bottom support 6 can be determined not only by the rod length and swing angle of the connecting rod 5, but also because the head end of the lifting section 12 is lower than the end end, this height difference can also contribute to a larger movement of the bottom support 6, which can not only enable the slider 17 to quickly open the bottom support 6 at the initial stage of the swing of the connecting rod 5, but also can obtain a larger displacement of the bottom support 6 when the size of the related components is limited, so that the D shell ventilation channel can obtain a larger opening.

[0072] Based on the above implementation, in a preferred embodiment, Fig.10 and 11 As shown, there is a smooth transition between the lifting section 12 and the maintaining section 13, which is formed by two arcs with opposite bending directions being tangent to each other in the illustrated embodiment. The smooth transition between the lifting section 12 and the maintaining section 13 allows the slider 17 to always slide smoothly when the screen assembly 1 is tilted, and the user will not feel any obstruction or jamming during operation, thereby enhancing the user experience.

[0073] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of the invention.

Claims

1. A laptop computer, comprising a screen assembly (1) and a host assembly (2), wherein the screen assembly (1) is rotatably connected to the host assembly (2) via a screen shaft (4); It is characterized in that It also comprises a bottom support (6), wherein the bottom support (6) is arranged at the bottom of the main body assembly (2); the bottom support (6) is provided with a connecting mechanism at one end close to the screen rotating shaft (4), one end of the connecting mechanism is connected to the bottom support (6), and the other end of the connecting mechanism is connected to the screen assembly (1); When the screen assembly (1) switches from a closed state to an open state under the action of an external force, the screen assembly (1) drives the connecting mechanism to move, so that the bottom support (6) moves from close to the bottom of the main assembly (2) to a direction away from the bottom of the main assembly (2); A vertical plate (10) is provided on the top surface of the bottom support (6), and a track groove (11) is provided on the vertical plate (10). The connecting mechanism comprises a connecting rod (5); The connecting rod (5) is provided with a swing end at one end close to the bottom support (6), and the swing end is provided with a sliding block (17) slidably connected to the track groove (11); The track groove (11) comprises a lifting section (12) and a maintaining section (13); when the screen assembly (1) switches from the closed state to the open state, the slider (17) passes through the lifting section (12) and the maintaining section (13) in sequence; the path of the maintaining section (13) is an arc; after the slider (17) enters the maintaining section (13), the center (15) of the arc coincides with the swing axis of the connecting rod (5); The end of the lifting section (12) is located at a position close to the top of the vertical plate (10) relative to the head end of the lifting section (12); The connecting rod (5) is connected to the screen assembly (1) through a transmission assembly, and the screen assembly (1) drives the connecting rod (5) to swing when rotating around the screen rotation axis (4), and the connecting rod (5) drives the bottom support (6) to move through the swinging movement; The screen rotating shaft (4) is fixedly connected to the screen assembly (1), and the screen rotating shaft (4) is rotationally connected to the host assembly (2); the transmission assembly comprises: A driving gear (8) connected to the screen rotating shaft (4) and coaxial with the screen rotating shaft (4); A driven gear (9) is arranged on the connecting rod (5), and the driven gear (9) is meshed with the driving gear (8); A casing shell (7) is disposed on the main engine assembly (2); the driven gear (9) is rotationally connected to the casing shell (7); The casing shell (7) is in an M-shaped structure when viewed from above. The casing body in the middle is used to contain the gear mechanism and the connecting rod (5). The two outermost side walls of the M-shape are provided with connecting plates for connecting to the main engine assembly (2). The gap between the casing body and the two side walls is used for inserting the vertical plate (10).

2. The notebook computer according to claim 1, characterized in that: The driven gear (9) is located closer to the front end of the main engine assembly (2) relative to the driving gear (8).

3. The notebook computer according to claim 2, characterized in that: The transmission ratio between the driving gear (8) and the driven gear (9) is greater than 1.

4. The notebook computer according to any one of claims 1 to 3, characterized in that: There is a smooth transition between the lifting section (12) and the maintaining section (13).

5. The notebook computer according to any one of claims 1 to 3, characterized in that: The bottom support (6) is a plate-shaped structure. One end of the bottom support (6) is provided with a bottom support shaft hole (14). The bottom support shaft hole (14) is used for rotationally connecting with the main engine assembly (2). The other end of the bottom support (6) is connected with the connecting rod (5).

Images