Heat dissipation shell of electronic device and electronic device

Abstract

The application discloses a heat dissipation shell of an electronic device and the electronic device, and relates to the technical field of electronic devices. The heat dissipation shell of the electronic device comprises a shell, a clockwork box, a pump, a driving assembly and a switch assembly. The shell comprises a first area and a second area, the first area is distributed with a first phase change material filler, and the second area is distributed with a second phase change material filler. A fluid channel with a built-in heat conduction medium is arranged in the shell, and the fluid channel penetrates through the first area and the second area. A power output end of the clockwork box is connected to the pump, and the inlet end and the outlet end of the pump are respectively communicated with two ends of the fluid channel. The driving assembly is connected to the power input end of the clockwork box, and the driving assembly comprises a holding part. The switch assembly is used for controlling the rotation or stop of the power output end of the clockwork box. The heat dissipation shell has better temperature uniformity, the heat dissipation capacity of the electronic device in a high-power consumption scene is improved, the volume is small, and the heat dissipation shell is convenient to carry.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electronic technology, in particular to a heat dissipation shell of an electronic device and the electronic device. BACKGROUND

[0002] With the continuous development of electronic technology, the high integration of smart terminals such as mobile phones and tablet computers has become an inevitable trend. The performance of smart terminals is continuously improved, and the increasing power consumption and the increasing user experience requirements caused by the increasing integration of chips have put forward higher requirements for the heat dissipation of smart terminals. Therefore, improving the heat dissipation performance of smart terminals has always been the focus of the industry.

[0003] At present, terminal devices such as mobile phones and tablets mostly use internal heat dissipation materials such as heat pipes and water ink copper foils for efficient temperature equalization. Since the surface is cooled by natural convection, the overall heat dissipation capacity is limited. With the increase of power consumption, the surface temperature of the device continues to rise, affecting the user experience. Some terminal devices use fans for forced heat dissipation, but this requires a relatively strict internal structure space. Some terminal devices use external auxiliary heat dissipation devices for heat dissipation. These external auxiliary heat dissipation devices are usually large in size and high in energy consumption, and need to be configured with an external power supply, which is not convenient to carry. SUMMARY

[0004] The purpose of the present application is to provide a heat dissipation shell of an electronic device, which is small in size, convenient to carry, and has good heat dissipation performance.

[0005] The second purpose of the present application is to provide an electronic device.

[0006] To achieve the above-mentioned first purpose, the present application adopts the following technical solutions:

[0007] The heat dissipation shell of the electronic device comprises a shell, a clockwork box, a pump, a driving assembly, and a switch assembly.

[0008] The shell comprises a first region and a second region, the first region is distributed with a first phase change material filler, the second region is distributed with a second phase change material filler, the phase change temperature of the second phase change material filler is different from that of the first phase change material filler, and a fluid channel with a built-in heat conducting medium is further arranged in the shell, and the fluid channel penetrates through the first region and the second region.

[0009] The power output end of the clockwork box is connected to the pump to drive the pump, and the inlet and outlet of the pump are respectively communicated with the two ends of the fluid channel.

[0010] The driving assembly is connected to the power input end of the spring box, and the driving assembly comprises a holding part arranged outside the shell, which is used for being held and rotated by a hand to drive the power input end of the spring box.

[0011] The switch assembly is used for controlling the rotation or stop of the power output end of the spring box.

[0012] Preferably, the outer surface of the shell is fixedly connected with a mounting shell, and the spring box and the switch assembly are arranged in the mounting shell, and the bottom and the periphery of the mounting shell are tightly matched with the shell.

[0013] Preferably, a through hole extending from one side to the other side is arranged on the bottom wall of the mounting shell, and the two ends of the through hole form an interface, respectively, and the two ends of the fluid channel are communicated with the interfaces at the two ends of the through hole; the pump is a gear pump arranged inside the bottom wall, and the gear pump comprises two gears arranged oppositely and arranged on the two sides of the through hole, and one of the gears is connected to the power output end of the spring box.

[0014] Preferably, the mounting shell comprises a bottom plate and a mounting plate arranged tightly and attached to the lower surface of the bottom plate, and the periphery of the bottom plate and the periphery of the mounting plate are tightly matched with the shell; a groove extending from one side to the other side is arranged on the upper surface of the mounting plate, and the through hole is surrounded by the lower surface of the bottom plate and the inner surface of the groove, and the two gears of the gear pump are arranged on the mounting plate.

[0015] Preferably, the power output end of the spring box is provided with an output gear, and a transmission assembly is connected between the output gear and one of the gears of the gear pump.

[0016] Preferably, a top cover is detachably fixed to the top of the mounting shell, and the trigger end of the switch assembly protrudes from the upper surface of the top cover or the outer periphery of the mounting shell.

[0017] Preferably, the switch assembly comprises a fixed shell fixedly connected in the mounting shell and a button movably connected in the fixed shell, the top end of the button protrudes out of the outer part of the top cover to form the trigger end, and the periphery of the button is provided with a limiting rod penetrating out of the fixed shell, and the limiting rod limits the rotation freedom degree of the output gear when the button moves downward to a first position and releases the rotation freedom degree of the output gear when the button moves upward to a second position.

[0018] Preferably, the switch assembly comprises a linkage gear pivoted in the mounting shell and engaged with the output gear, and the linkage gear is provided with a swing rod matched with the limiting rod.

[0019] Preferably, a spring for pushing the button upward and a sliding rod are arranged between the fixed shell and the button, the button is provided with a sliding groove, the sliding groove is connected at the head and tail to form a closed structure, one end of the sliding rod is hinged to the fixed shell, the other end of the sliding rod is slidably embedded in the sliding groove, the sliding groove comprises a first section, a second section and a third section arranged in sequence, the second section is an arc-shaped section with a concave middle part, the middle part of the second section is provided with a first clamping part for clamping the other end of the sliding rod, the top end of the first section and the third section is connected to the two ends of the second section respectively, the bottom end of the first section and the third section is extended downward and connected to each other, and the bottom end of the first section and the third section forms a second clamping part for clamping the other end of the sliding rod.

[0020] Preferably, the transmission assembly comprises a first transmission gear meshing with the output gear, a second transmission gear synchronously connected with the first transmission gear, a third transmission gear meshing with the second transmission gear, a fourth transmission gear synchronously connected with the third transmission gear, and a fifth transmission gear meshing with the fourth transmission gear, the fifth transmission gear is synchronously connected with one of the gears of the gear pump, wherein the diameter of the first transmission gear is smaller than the diameter of the output gear, the diameter of the second transmission gear is larger than the diameter of the first transmission gear, the diameter of the third transmission gear is smaller than the diameter of the second transmission gear, the diameter of the fourth transmission gear is larger than the diameter of the third transmission gear, and the diameter of the fifth transmission gear is smaller than the diameter of the fourth transmission gear.

[0021] Preferably, the power input end of the spring box is provided with an input gear, the driving assembly comprises a transmission shaft and a driving shaft, one end of the transmission shaft is synchronously connected with the input gear, the other end of the transmission shaft penetrates out of the installation shell, the driving shaft is pivoted outside the installation shell and synchronously connected with the other end of the transmission shaft, and a holding part is arranged on the driving shaft.

[0022] Preferably, the driving shaft is perpendicular to the transmission shaft, the holding part is a ring rotatably connected to the driving shaft, and the ring extends radially along the driving shaft relative to the rotation axis of the driving shaft.

[0023] Preferably, a sixth transmission gear is pivoted in the installation shell, the sixth transmission gear is meshed with the input gear, one end of the transmission shaft is synchronously connected with the sixth transmission gear, and the diameter of the sixth transmission gear is larger than the diameter of the input gear.

[0024] Preferably, the first phase change material filler is a high-temperature phase change microcapsule, and the second phase change material filler is a low-temperature phase change microcapsule.

[0025] To achieve the above-mentioned purposes, the application adopts the following technical solutions:

[0026] Electronic device, comprising the heat dissipation shell of the electronic device.

[0027] The application makes the surface of the heat dissipation shell have better uniform temperature characteristics by continuously exchanging heat with different phase change materials through the heat conducting medium, is suitable for the heat dissipation requirement of the electronic device working intermittently, improves the heat dissipation capacity of the electronic device in the high power consumption scene, and uses the driving assembly to tighten the spring box, the spring box stores mechanical energy, and then provides power for the pump, has small volume and is convenient to carry. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without any creative effort.

[0029] Figure 1 It is a structural schematic diagram of the present application;

[0030] Figure 2 It is Figure 1 It is a structural schematic diagram of the middle shell;

[0031] Figure 3 It is Figure 1 It is a structural schematic diagram of the middle installation shell;

[0032] Figure 4 It is Figure 3 It is a view of A of the present application;

[0033] Figure 5 It is Figure 3 It is a structural schematic diagram of the switch assembly in the present application;

[0034] Figure 6 It is a working state schematic diagram of the switch assembly.

[0035] Explanation of the reference signs:

[0036]

[0037]

[0038] The implementation, functional features and advantages of the present application will be further illustrated by combining with the embodiments and referring to the drawings. DETAILED DESCRIPTION

[0039] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those of ordinary skill in the art without creative efforts should belong to the protection scope of the present application.

[0040] It should be noted that all the direction indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the direction indications also change accordingly.

[0041] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features or implicitly indicating the number of the technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of those of ordinary skill in the art, and when the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0042] As Figure 1 , 2The application discloses a heat dissipation shell of an electronic device, in particular to a heat dissipation shell of a mobile phone, which can be sleeved on the outside of the mobile phone. The heat dissipation shell comprises a shell body 10, a clockwork box 21, a switch assembly 30, a driving assembly 70 and a pump. The shell body 10 comprises a first area 11 and a second area 12. The first area 11 is provided with a first phase change material filler 111, and the second area is provided with a second phase change material filler 121. The phase change temperature of the second phase change material filler 121 is different from that of the first phase change material filler 111. In particular, the phase change temperature of the first phase change material filler 111 is higher than that of the second phase change material filler 121. Specifically, the first area 11 is opposite to the heat source area of the mobile phone mainboard, that is, the first phase change material filler 111 is opposite to the area with a relatively high temperature on the mobile phone. The second area 12 is opposite to other positions of the mobile phone, that is, the second phase change material filler 121 is opposite to the area with a relatively low temperature on the mobile phone. For example, the phase change temperature of the first phase change material filler 111 is 40 DEG C, so as to meet the human body temperature difference comfort requirement. The phase change temperature of the second phase change material filler 121 is 36 DEG C, which is close to the temperature of the human hand, so as to prevent the phase change material from absorbing the temperature of the human hand and reducing the heat absorption time. A fluid channel 13 is further arranged in the shell body 10. The fluid channel 13 penetrates through the first area 11 and the second area 12. The fluid channel 13 is internally provided with a heat conducting medium. When the heat conducting medium in the fluid channel 13 flows through the first area 11 and the second area 12, the heat conducting medium can exchange heat with the first phase change material filler 111 and the second phase change material filler 121 respectively. The clockwork box 21 is used as a power output component. The pump is connected to the power output end of the clockwork box 21. The power input end of the clockwork box 21 rotates to drive the pump to operate. The liquid inlet end and the liquid outlet end of the pump are respectively communicated with the two ends of the fluid channel 13. The pump is used to drive the heat conducting medium in the fluid channel 13 to flow in the loop formed by the fluid channel 13 and the pump, so that the heat conducting medium can continuously exchange heat with the first phase change material filler 111 and the second phase change material filler 121. The switch assembly 30 is used to control the rotation or stop of the power output end of the clockwork box 21. When the mobile phone is in use, the switch assembly 30 is opened, so that the power output end of the clockwork box 21 can rotate and drive the pump to operate. When the mobile phone is in a non-use state, the switch assembly 30 is closed, the switch assembly 30 controls the power output end of the clockwork box 21 to stop rotating, and the pump stops working. The heat conducting medium in the fluid channel 13 stops flowing.The driving assembly 70 is connected to the power input end of the spring box 21, and the driving assembly 70 comprises a holding portion outside the shell 10, which is used for manual holding, and the holding portion is used for driving the power input end of the spring box 21 to rotate, thereby winding the spring box 21, when the mobile phone is in a non-use state, the switch assembly 30 is closed, and the user can operate the holding portion to wind the spring box 21, when the mobile phone is used, the switch assembly 30 is opened, so that the power of the spring box 21 can be transmitted to the pump, and the heat-conducting medium in the fluid channel 13 is driven to flow.

[0043] The first phase change material filler 111 of the application is a high-temperature phase change microcapsule, and the second phase change material filler 121 is a low-temperature phase change microcapsule, and the phase change material in the microcapsule can be selected from lauric acid, paraffin, eutectic salt composite material and the like; the phase change material is placed in the shell 10 in the form of a microcapsule, so that the phase change material can be better combined with the shell 10 to form an integral whole, the heat exchange area of the phase change material can be increased, and the uniform temperature effect of the surface of the shell 10 can be improved.

[0044] The application can continuously exchange heat with different phase change materials through the heat-conducting medium, so that the surface of the heat dissipation shell has better uniform temperature characteristics, is suitable for the heat dissipation requirement of an electronic device working intermittently, improves the heat dissipation capacity of the electronic device in a high-power consumption scene, and utilizes the driving assembly to wind the spring box, so that the spring box provides power for the pump after storing mechanical energy, and the application has small volume and is convenient to carry.

[0045] In a preferred embodiment, the present application is fixedly connected with a mounting shell 50 on the outer surface of the shell 10, a cavity is formed inside the mounting shell 50, the spring box 21 and the switch assembly 30 are both mounted in the cavity of the mounting shell 50. A through hole is provided on the bottom wall of the mounting shell 50, the through hole extends from one side of the bottom wall of the mounting shell 50 to the other side, that is, the through hole only forms an interface on both sides of the bottom of the mounting shell 50, which does not communicate with the inner cavity of the mounting shell 50, both ends of the fluid channel 13 are communicated with the interfaces at both ends of the through hole, thereby the fluid channel 13 and the through hole form a loop, and the heat conducting medium can circulate in the loop; the pump is a gear pump 40, the gear pump 40 includes gears 41 and 42 arranged oppositely, the gears 41 and 42 can be mounted inside the bottom wall of the mounting shell 50, and the gears 41 and 42 are arranged on both sides of the through hole respectively, the gear 41 is coupled with the power output end of the spring box 21, the gear 41 is driven to rotate by the spring box 21, and in turn the gears 41 and 42 of the gear pump are simultaneously rotated, the heat conducting medium in the through hole is driven to flow, and the heat conducting medium can circulate in the loop. In order to facilitate the installation of the gear pump 40, the mounting shell 50 of the present application includes a bottom plate 52 and a mounting plate 53, the mounting plate 53 is tightly attached to the lower surface of the bottom plate 52, and the outer periphery of the bottom plate 52 and the periphery of the mounting plate 53 are tightly matched with the shell 10, a groove 531 extending from one side to the other side is provided on the upper surface of the mounting plate 53, the through hole is surrounded by the inner surface of the groove 531 and the lower surface of the bottom plate 52 after the mounting plate 53 and the bottom plate 52 are assembled together, the gears 41 and 42 of the gear pump 40 are both mounted on the mounting plate 53 and arranged on both sides of the groove 531 respectively, during assembly, the gears 41 and 42 of the gear pump 40 are assembled on the mounting plate 53 first, then the mounting plate 53 is fixed on the lower surface of the bottom plate 52, the mounting plate 53 and the bottom plate 52 are sealed at the same time to form an assembly, then the assembly is assembled with the shell 10, and the periphery of the mounting plate 53 and the bottom plate 52 is sealed at the position matched with the shell 10.

[0046] In combination Figure 3 , 4As shown, an output gear 212 is arranged at the power output end of the clockwork box 21, and the output gear 212 is located at the periphery of the clockwork box 21. A transmission assembly is coupled between the output gear 212 and the gear 41 of the gear pump 40. Through the transmission assembly, the power stored in the clockwork box 21 is transmitted to the gear 41 through the output gear 212 to provide power for the gear pump 40. The transmission assembly specifically includes a first transmission gear 61, a second transmission gear 62, a third transmission gear 63, a fourth transmission gear 64, and a fifth transmission gear 65 which are installed on the mounting shell 50. The first transmission gear 61 is engaged with the output gear 212. The second transmission gear 62 is fixedly and coaxially arranged with the first transmission gear 61 so that the two gears rotate synchronously. The third transmission gear 63 is engaged with the second transmission gear 62. The fourth transmission gear 64 is fixedly and coaxially arranged with the third transmission gear 63 so that the two gears rotate synchronously. The fifth transmission gear 65 is engaged with the fourth transmission gear 64, and the fifth transmission gear 65 is synchronously coupled with the gear 41 of the gear pump 40. When the output gear 212 of the clockwork box 21 rotates, the power is transmitted to the gear 41 of the gear pump 40 through the first transmission gear 61, the second transmission gear 62, the third transmission gear 63, the fourth transmission gear 64, and the fifth transmission gear 65 in sequence. The diameter of the first transmission gear 61 is smaller than the diameter of the output gear 212. The diameter of the second transmission gear 62 is greater than the diameter of the first transmission gear 61. The diameter of the third transmission gear 63 is smaller than the diameter of the second transmission gear 62. The diameter of the fourth transmission gear 64 is greater than the diameter of the third transmission gear 63. The diameter of the fifth transmission gear 65 is smaller than the diameter of the fourth transmission gear 64. Therefore, the transmission assembly forms a multi-stage transmission structure between the output gear 212 and the gear 41. When the clockwork box 21 releases the stored power, the gear 41 and the gear 42 of the gear pump 40 can have a fast enough rotating speed, and then a local vacuum can be formed to continuously suck and push the fluid heat-conducting medium, so as to ensure that the heat-conducting medium can flow smoothly and quickly in the above-mentioned circuit. Of course, in order to make the clockwork box 21 provide power for the gear pump 40 and make the gear 41 of the gear pump 40 obtain a higher rotating speed, other transmission assemblies can be used to couple the gear 41 with the output gear 212.

[0047] Referring to Figure 5 , 6In another preferred embodiment, the present application is provided with a top cover 51 on the top of the installation shell 50, the top cover 51 is detachably fixed on the installation shell 50, the switch assembly 30, the spring box 21, the swing member 22 and the transmission assembly are all covered below the top cover 51, the trigger end of the switch assembly 30 protrudes from the upper surface of the top cover 51, so that the rotation or stop of the power output end of the spring box 21 can be controlled by pressing the trigger end of the switch assembly 30 from outside, specifically, the rotation or stop of the output gear 212 of the spring box 21; specifically, the switch assembly 30 includes a fixed shell 301 fixedly connected in the installation shell 50 and a button 302 movably installed in the fixed shell 301, the top of the button 302 passes through the top end of the fixed shell 301 and passes through the hole provided on the top cover 51 to the outside of the installation shell 50, the periphery of the button 302 protrudes a limiting rod 303, the limiting rod 303 passes through the pre-set hole 309 of the fixed shell 301, pressing the button 302 makes the limiting rod 303 move along the hole 309 in the height direction, when the limiting rod 303 moves downward with the button 302 to the first position abutting against the lower edge of the hole 309, the rotation of the limiting rod 303 to the output gear 212 plays a limiting role, thereby controlling the power output end of the spring box 21 to stop, when the limiting rod 303 moves upward with the button 302 to the second position abutting against the upper surface of the hole 309, the limiting rod 303 no longer limits the rotation of the output gear 212, the power of the spring box 21 is in a freely releasable state, that is, the gear 41 of the gear pump 40 is rotated. The switch assembly 30 further includes a linkage gear 31 pivotally connected in the installation shell 50, the linkage gear 31 is engaged with the output gear 212, the linkage gear 31 is provided with a swing rod 311, the swing rod 311 cooperates with the limiting rod 303, specifically, when the limiting rod 303 is in the first position, the limiting rod 303 is at the same height with the swing rod 311, the swing rod 311 abuts against the limiting rod 303, the limiting rod 303 limits the rotation of the swing rod 311, thereby limiting the rotation of the linkage gear 31, the output gear 212 cannot be freely rotated, when the limiting rod 303 is in the second position, the limiting rod 303 is separated from the swing rod 311, the swing rod 311 can be freely rotated, thereby making the output gear 212 be able to be freely rotated.A spring 305 is arranged between the fixed shell 301 and the button 302, the spring 305 is compressed and always pushes the button 302 upward, a sliding slot 306 is arranged on the button 302, the sliding slot 306 is connected in a closed structure, the lower end of the sliding rod 304 is hinged on the fixed shell 301, the upper end is embedded in the sliding slot 306 and can slide along the extension direction of the sliding slot 304; the sliding slot 306 includes a first section 3061, a second section 3062 and a third section 3063 arranged in sequence, the second section 3062 is arc-shaped with the middle part downwardly recessed, the middle part of the second section 3062 is provided with a first clamping part for clamping the other end of the sliding rod 304, the top end of the first section 3061 and the third section 3063 is respectively connected to the two ends of the second section 3062, the bottom end of the first section 3061 and the third section 3063 is downwardly extended and connected to each other, a second clamping part for clamping the other end of the sliding rod 304 is formed at the position where the bottom of the first section 3061 and the third section 3063 is connected to each other, when the other end of the sliding rod 304 slides to the first clamping part in the clockwise direction, the button 302 is at a lower position, i.e. the limiting rod 303 on the button 302 is at the first position, at this time, the other end of the sliding rod 304 is clamped in the first clamping part; when the other end of the sliding rod 304 slides to the second clamping part in the clockwise direction, the button 302 is at a higher position, at this time, the limiting rod 303 on the button 302 is at the second position, at this time, the other end of the sliding rod 304 is clamped in the second clamping part.Specifically, when the sliding rod 304 is in the first clamping portion, since the spring 305 always pushes the button 303 outward, the sliding rod 304 abuts against the middle point a of the inner edge of the second section 3062, at the same time, the point b at the outer edge of the second section 3062 protrudes to the middle of the sliding groove 304 and is located at the left side of the point a, the other end of the sliding rod 304 is limited by the points b and a, at this time, the button 302 is pressed, due to the limiting effect of the point b, the other end of the sliding rod 304 slides along the sliding groove 306 in the clockwise direction, that is, the other end of the sliding rod 304 slides to the right along the second section 306, since the point g at the joint of the inner edge of the second section 3062 and the inner edge of the third section 3063 is located at the left side of the point h at the joint of the outer edge of the second section 3062 and the outer edge of the third section 3063, when sliding to the position where the second section 3062 and the third section 3063 are connected, the pressing force on the button 302 is released, under the action of the spring 305, the other end of the sliding rod 304 slides clockwise downward to the position where the third section 3063 and the first section 3061 are connected, and is clamped by the second clamping portion there, that is, under the action of the spring 305, the other end of the sliding rod 304 is clamped in the recess formed by the outer edge of the joint of the third section 3063 and the first section 3061, and the button 302 is in the high position; since the center point d of the recess formed by the outer edge of the joint of the third section 3063 and the first section 3061 is located at the left side of the center point c of the convex part formed by the inner edge of the joint of the third section 3063 and the first section 3061, due to the limiting effect of the point c, at this time, the button 302 is pressed, the other end of the sliding rod 304 can only slide clockwise, that is, slide upward along the first section 3061, since the point e at the joint of the inner edge of the first section 3061 and the inner edge of the second section 3062 is located at the left side of the point f at the joint of the outer edge of the first section 3061 and the outer edge of the second section 3062, at this time, the pressing force on the button 302 is released, the other end of the sliding rod 304 slides clockwise to the first clamping portion in the middle of the second section 3062.

[0048] In the present application, the button 302 described above is not limited to being worn out from the top cover 51 on the top of the mounting shell 50, but can also be worn out from the side of the mounting shell 50, and the switch assembly is not limited to the above-mentioned pressing button mode, but can also be a kind of button of dialing or rotating type, for example, the trigger end of the switch is dialed to one position, so that the parts on the switch move to the position of engaging with the tooth groove of the output gear 212, when dialed to another position, the parts on the switch assembly are separated from the output gear 212, and the rotation of the output gear 212 is no longer limited.

[0049] Referring to Figure 3 , 4As shown, the present application is provided with an input gear 211 at the power input end of the spring box 21, the above-mentioned drive assembly 70 includes a transmission shaft 72 and a drive shaft, one end of the transmission shaft 72 is synchronously connected with the input gear 211, the other end of the transmission shaft 72 is out of the side of the mounting shell 50, the drive shaft is located outside the mounting shell 50 and is pivotally connected to the mounting shell 50, and the drive shaft is synchronously connected with the other end of the transmission shaft 72, the above-mentioned holding part is arranged on the drive shaft, by rotating the holding part, the drive shaft drives the transmission shaft 72 to rotate, and then drives the input gear 211 of the spring box 21 to rotate, thereby tightening the spring box 21. The drive shaft is arranged vertically with the transmission shaft 72, that is, the extension direction of the drive shaft is consistent with the height direction of the mounting shell 50, the drive shaft is fixed with a helical gear 74, the end of the transmission shaft 72 out of the outside of the mounting shell 50 is fixed with a helical gear 73, the helical gear 73 is engaged with the helical gear 74, so as to ensure that the power can be transmitted from the drive shaft to the transmission shaft 72. The above-mentioned holding part is specifically a finger ring 75, the finger ring 75 is rotatably connected to the drive shaft, and the rotation axis of the finger ring 75 extends radially along the drive shaft, so that the finger ring 75 can be unfolded or folded. Specifically, when the finger ring 75 is not needed, the finger ring 75 can be rotated to be folded to the outside of the circumference of the mounting shell 50, when the finger ring 75 is used, the finger ring 75 is unfolded, the rotation axis of the finger ring 75 is perpendicular to the rotation axis of the drive shaft, after the finger ring 75 is unfolded, the finger ring 75 can be rotated around the central axis of the rotation axis, driving the drive shaft to rotate, and then tightening the spring box 21. In addition, a sixth transmission gear 76 is pivotally connected inside the mounting shell 50, the sixth transmission gear 76 is engaged with the input gear 211, one end of the transmission shaft 72 is synchronously connected with the sixth transmission gear 76, specifically, one end of the transmission shaft 72 is provided with a gear 71, the gear 71 is engaged with the sixth transmission gear 76, so as to realize the power transmission from the transmission shaft 72 to the sixth transmission gear 76 and the input gear 211 in turn. The diameter of the sixth transmission gear 76 is greater than the diameter of the input gear 211, forming a one-stage transmission structure, so as to increase the rotation speed of the input gear 211 and improve the tightening efficiency of the spring box 21.

[0050] The heat dissipation shell of the present application can be used as a protective shell outside the mobile phone as described above, or can be directly used as the shell of the mobile phone itself to dissipate heat for the electronic equipment inside the mobile phone. Of course, the heat dissipation shell of the present application is not limited to being used as a protective shell of the mobile phone, but can also be used as a protective shell of other electronic equipment such as a tablet computer.

[0051] The above merely describes the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural changes made according to the content of the present application specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present application.

Claims

1. A heat sink for an electronic device, characterized in that, Includes housing, spring barrel, pump, drive assembly, and switch assembly; The shell includes a first region and a second region. The first region is filled with a first phase change material, and the second region is filled with a second phase change material. The phase change temperature of the second phase change material is different from that of the first phase change material. The shell also has a fluid channel with an internal heat-conducting medium that runs through the first and second regions. The power output end of the spring barrel is connected to the pump to drive the pump, and the inlet and outlet ends of the pump are respectively connected to the two ends of the fluid channel. The drive assembly is connected to the power input terminal of the mainspring barrel, and the drive assembly includes a grip portion located outside the housing, the grip portion being used for a person to hold and rotate to drive the power input terminal of the mainspring barrel; The switching assembly is used to control the rotation or stop of the power output end of the spring barrel.

2. The heat sink for the electronic device as described in claim 1, characterized in that, A mounting shell is fixedly connected to the outer surface of the housing. The spring box and the switch assembly are both installed inside the mounting shell. The bottom and periphery of the mounting shell are sealed to the housing.

3. The heat sink for an electronic device as described in claim 2, characterized in that, The bottom wall of the mounting housing is provided with a through hole extending from one side to the other. An interface is formed at each end of the through hole, and the two ends of the fluid channel are respectively connected to the interfaces at both ends of the through hole. The pump is a gear pump disposed inside the bottom wall. The gear pump includes two gears arranged opposite each other and respectively placed on both sides of the through hole. One of the gears is connected to the power output end of the spring barrel.

4. The heat sink for an electronic device as described in claim 3, characterized in that, The mounting housing includes a base plate and a mounting plate. The mounting plate is sealed against the lower surface of the base plate. The outer periphery of the base plate and the periphery of the mounting plate are sealed to the housing. A groove extending from one side to the other is provided on the upper surface of the mounting plate. The through hole is formed by the lower surface of the base plate and the inner surface of the groove. The two gears of the gear pump are mounted on the mounting plate.

5. The heat sink for an electronic device as described in claim 3, characterized in that, The power output end of the spring barrel is provided with an output gear, and a transmission component is connected between the output gear and one of the gears of the gear pump.

6. The heat sink for an electronic device as described in claim 5, characterized in that, The top of the mounting housing is detachably fixed with a top cover, and the trigger end of the switch assembly protrudes from the upper surface of the top cover or the outer peripheral surface of the mounting housing.

7. The heat sink for an electronic device as described in claim 6, characterized in that, The switch assembly includes a fixed housing fixedly connected to the mounting housing and a button movably connected to the fixed housing. The top end of the button protrudes through the outside of the top cover to form the trigger end. A limiting rod is provided around the periphery of the button, extending through the fixed housing. The limiting rod limits the rotational freedom of the output gear when the button moves downward to a first position and releases the rotational freedom of the output gear when the button moves upward to a second position.

8. The heat sink of the electronic device as described in claim 7, characterized in that, The switch assembly includes a linkage gear pivotally connected within the mounting housing and meshing with the output gear, and the linkage gear is provided with a swing rod that cooperates with the limit rod.

9. The heat sink of the electronic device as described in claim 7, characterized in that, A spring that pushes the button upward and a sliding rod are provided between the fixed shell and the button. The button is provided with a sliding groove, and the ends of the sliding groove are connected to form a closed structure. One end of the sliding rod is hinged to the fixed shell, and the other end is slidably embedded in the sliding groove. The sliding groove includes a first segment, a second segment and a third segment arranged in succession. The second segment is an arc shape with a concave middle. The middle of the second segment is provided with a first locking part for locking the other end of the sliding rod. The top ends of the first segment and the third segment are respectively connected to the two ends of the second segment, and the bottom ends of both segments extend downward and are connected to each other. The bottom connection of the first segment and the third segment forms a second locking part for locking the other end of the sliding rod.

10. The heat sink of the electronic device as described in claim 5, characterized in that, The transmission assembly includes a first transmission gear meshing with the output gear, a second transmission gear synchronously connected to the first transmission gear, a third transmission gear meshing with the second transmission gear, a fourth transmission gear synchronously connected to the third transmission gear, and a fifth transmission gear meshing with the fourth transmission gear. The fifth transmission gear is synchronously connected to one of the gears of the gear pump. The diameter of the first transmission gear is smaller than the diameter of the output gear, the diameter of the second transmission gear is larger than the diameter of the first transmission gear, the diameter of the third transmission gear is smaller than the diameter of the second transmission gear, the diameter of the fourth transmission gear is larger than the diameter of the third transmission gear, and the diameter of the fifth transmission gear is smaller than the diameter of the fourth transmission gear.

11. The heat sink of the electronic device as described in claim 2, characterized in that, The power input end of the spring barrel is provided with an input gear. The drive assembly includes a transmission shaft and a drive shaft. One end of the transmission shaft is synchronously connected to the input gear, and the other end extends out of the mounting housing. The drive shaft is pivotally connected to the outside of the mounting housing and synchronously connected to the other end of the transmission shaft. The grip is provided on the drive shaft.

12. The heat sink of the electronic device as described in claim 11, characterized in that, The drive shaft is perpendicular to the transmission shaft, and the grip is a finger ring rotatably connected to the drive shaft. The finger ring extends radially along the axis of rotation of the drive shaft relative to the drive shaft.

13. The heat sink of the electronic device as described in claim 11, characterized in that, A sixth transmission gear is pivotally connected inside the mounting housing. The sixth transmission gear meshes with the input gear. One end of the transmission shaft is synchronously connected to the sixth transmission gear. The diameter of the sixth transmission gear is larger than the diameter of the input gear.

14. The heat sink of the electronic device as claimed in claim 1, characterized in that, The first phase change material filler is a high-temperature phase change microcapsule, and the second phase change material filler is a low-temperature phase change microcapsule.

15. An electronic device, characterized in that, The heat sink housing of the electronic device as described in any one of claims 1-14.

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