A host box with passive heat dissipation function

Abstract

The utility model relates to control box technical field discloses a host box with passive heat dissipation function, including bottom plate and the cover plate that covers the top of bottom plate, the both sides of bottom plate all splice have auxiliary heat conduction spare no.

Description

Technical Field

[0001] This utility model relates to the field of control box technology, and in particular to a main unit box with passive heat dissipation function. Background Technology

[0002] Industrial control boxes, multimedia playback boxes, and advertising machines used in indoor and outdoor environments (especially high-temperature outdoor environments) generate significant heat during operation, primarily from the central processing unit (CPU). Therefore, they require specific heat dissipation methods. Traditional cooling methods involve active cooling, which uses a cooling fan inside the box to circulate air and dissipate heat. For example, patent publication CN207625598U illustrates a similar host device with a cooling fan. However, the fan generates considerable noise, easily disturbing the surrounding environment. Furthermore, the cooling fan is prone to dust accumulation, requiring regular cleaning and increasing maintenance costs, which is detrimental to long-term use. Therefore, existing host boxes require improvement. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a host box with passive heat dissipation function, which can replace the cooling fan to passively dissipate heat from the central processing unit, thereby reducing the problems caused by the cooling fan.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A host box with passive heat dissipation function includes a box body, which includes a bottom plate and a cover plate covering the bottom plate. Auxiliary heat-conducting components are attached to both sides of the bottom plate, and auxiliary heat-conducting components are provided on both sides of the cover plate. A control board is provided on the upper surface of the bottom plate, and a central processing unit (CPU) is provided on the upper surface of the control board. A heat exchange element for heat exchange with the CPU is attached to the upper surface of the CPU, and a heat exchange tube for heat exchange with the heat exchange element is provided on the upper surface of the heat exchange element. The heat exchange tube extends between the auxiliary heat-conducting components and to exchange heat with them. End caps are installed at both the front and rear ends of the box body, covering the end faces of the bottom plate, the cover plate, and the auxiliary heat-conducting components. The bottom plate, the cover plate, and the auxiliary heat-conducting components are all made of thermally conductive material.

[0005] Using the above solution, during operation, the heat generated by the central processing unit (CPU) can be conducted sequentially through heat exchange elements, heat exchange pipes, auxiliary heat conduction component one, auxiliary heat conduction component two, the cover plate, and the bottom plate, thus replacing the passive cooling of the cooling fan. This ensures heat dissipation performance while reducing a series of problems associated with cooling fans. Furthermore, using the enclosure itself as a heat dissipation component improves heat dissipation performance and reduces the size of the enclosure, thereby reducing its footprint.

[0006] Preferably, the outer surface of the heat exchange tube is fitted to the covering surface of the cover plate.

[0007] By adopting the above scheme, the close fit can increase the contact area between the heat exchange tube and the cover plate, further improving the heat conduction performance of the cover plate and the heat exchange tube, as well as the passive heat dissipation performance of the whole machine.

[0008] Preferably, the cover plate has a heat exchange groove on its mating surface for the heat exchange tube to be inserted.

[0009] By adopting the above solution, the heat exchange tank can increase the contact area between the heat exchange tube and the cover plate, further improve the heat transfer efficiency between the cover plate and the heat exchange tube, and thus effectively improve the heat dissipation performance of the main unit box.

[0010] Preferably, the upper surface of the heat exchange element is provided with a heat exchange groove for the heat exchange tube to be inserted, and the upper surface of the heat exchange tube protrudes from the upper surface of the heat exchange element.

[0011] By adopting the above scheme, heat exchange tank two can increase the contact area between heat exchange tubes and heat exchange elements, further improve the heat exchange efficiency between heat exchange tubes and heat exchange elements, and thus make the passive heat dissipation performance of the main unit box better.

[0012] Preferably, the heat exchange element is fixed to the cover surface of the cover plate.

[0013] By adopting the above solution, the heat exchange elements and heat exchange tubes can be spliced ​​with the cover plate to form a heat dissipation assembly that can be spliced ​​with the base plate. This not only further reduces the size of the main unit box, but also improves the installation efficiency and convenience of the box.

[0014] Preferably, the upper surface of the auxiliary heat-conducting component one is provided with a heat-conducting groove one for embedding the heat exchange tube, and the lower surface of the auxiliary heat-conducting component two is provided with a heat-conducting groove two for embedding the heat exchange tube corresponding to the position of the heat-conducting groove one.

[0015] By adopting the above scheme, heat conduction groove one and heat conduction groove two can respectively increase the contact area between the heat exchange tube and auxiliary heat conduction component one and auxiliary heat conduction component two, thereby effectively improving the heat exchange efficiency between the heat exchange tube and auxiliary heat conduction component one and auxiliary heat conduction component two, and further improving the heat dissipation performance of the main unit box.

[0016] Preferably, the upper surface of the cover plate is provided with several heat dissipation fins 1, the lower surface of the auxiliary heat conduction component 1 is provided with several heat dissipation fins 2, the upper surface of the auxiliary heat conduction component 2 is provided with several heat dissipation fins 3, and each of the two auxiliary heat conduction components 2 is provided with a side plate that abuts against the opposite side of the two auxiliary heat conduction components 1, and the outer surface of the side plate is provided with several heat dissipation fins 4.

[0017] By adopting the above solution, the side panel can improve the horizontal lateral positioning capability between the cover plate and the bottom plate, further enhancing the overall strength and stability of the main unit box. Heat dissipation fins one, two, three, and four can respectively increase the surface area of ​​the cover plate, auxiliary heat-conducting component one, auxiliary heat-conducting component two, and the outer surface of the side panel, further improving heat dissipation performance.

[0018] Preferably, the end cover has heat dissipation vents corresponding to the positions of heat dissipation fins two and three.

[0019] By adopting the above solution, the heat dissipation vent can provide heat dissipation space for the airflow channel between adjacent heat dissipation fins 2 and 3, thereby reducing the impact of the end cover on the heat dissipation performance of the two.

[0020] Preferably, both ends of the heat dissipation fin 2 are provided with limiting member 1, and both ends of the heat dissipation fin 3 are provided with limiting member 2. The limiting member 1 and the limiting member 2 located on the same side are respectively engaged with the lower edge and the upper edge of the heat dissipation port.

[0021] By adopting the above solution, the interlocking action between the heat dissipation vent and the first and second limiting components can pre-position the spliced ​​auxiliary heat-conducting components, which can not only increase the longitudinal fastening force between the cover plate and the base plate, thereby reducing the number of fasteners and reducing the cost of parts, but also improve the installation efficiency and convenience of the end cover.

[0022] As a preferred embodiment, both sides of the limiting member one and the limiting member two facing each other are provided with arc-shaped snap-fit ​​components, and the upper and lower edges of the heat dissipation vent are provided with arc-shaped slots for the two arc-shaped snap-fit ​​components to be elastically snapped together.

[0023] The above solution features a simple and flexible interlocking mechanism between the arc-shaped connector and the arc-shaped slot. This mechanism not only enhances the interlocking force between the heat dissipation vent and the first and second limiting components, but also prevents the end cap from detaching from the box after the three components are assembled, further improving the installation efficiency and convenience of the end cap.

[0024] This invention, by employing the above technical solution, achieves significant technical advantages: During operation, the heat generated by the central processing unit (CPU) is conducted sequentially through the heat exchange element, heat exchange pipe, auxiliary heat-conducting component one, auxiliary heat-conducting component two, cover plate, and bottom plate, thus replacing the passive cooling fan. This ensures heat dissipation performance while reducing a series of problems associated with cooling fans. Furthermore, using the enclosure itself as a heat dissipation component improves heat dissipation performance and reduces the size of the enclosure, thereby minimizing space occupation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this embodiment. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this embodiment. Figure 2 ; Figure 3 for Figure 2 An enlarged schematic diagram of part A shown; Figure 4 This is a schematic diagram of the structure of this embodiment. Figure 3 ; Figure 5 for Figure 4 An enlarged schematic diagram of part B is shown below; Figure 6 This is a schematic diagram of the structure of this embodiment. Figure 4 ; Figure 7 for Figure 6 An enlarged schematic diagram of section C is shown below; Figure 8 This is a schematic diagram of the structure of this embodiment. Figure 5 ; Figure 9 for Figure 8 An enlarged schematic diagram of part D is shown below; Figure 10 This is a schematic diagram of the structure of this embodiment. Figure 6 ; Figure 11 This is a schematic diagram of the structure of this embodiment. Figure 7 ; Figure 12 for Figure 11 An enlarged schematic diagram of part E shown; Figure 13 for Figure 11 An enlarged schematic diagram of part F shown.

[0026] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Box body; 2. Base plate; 3. Cover plate; 4. Auxiliary heat conduction component one; 5. Auxiliary heat conduction component two; 6. Control board; 7. Central processing unit; 8. Heat exchange element; 9. Heat exchange tube; 10. End cap; 11. Heat exchange groove one; 12. Heat exchange groove two; 13. Heat conduction groove one; 14. Heat conduction groove two; 15. Heat dissipation fin one; 16. Heat dissipation fin two; 17. Heat dissipation fin three; 18. Side plate; 19. Heat dissipation fin four; 20. Heat dissipation port; 21. Limiting component one; 22. Limiting component two; 23. Arc-shaped snap-fit ​​component; 24. Arc-shaped slot; 25. First connecting plate; 26. Second connecting plate; 27. First screw; 28. Support component; 29. ​​Second screw; 30. Third screw; 31. Fourth screw. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] like Figures 1 to 13As shown in the figure, this embodiment discloses a host box with passive heat dissipation function, including a box body 1. The box body 1 includes a bottom plate 2 and a cover plate 3 covering the bottom plate 2. Auxiliary heat-conducting components 4 are spliced ​​on both sides of the bottom plate 2. Specifically, a first connecting plate 25 extends from both sides of the bottom plate 2. On the opposite sides of the two auxiliary heat-conducting components 4 and near the bottom, a second connecting plate 26 extends and abuts against the top of the two first connecting plates 25. The first connecting plate 25 is fixed to the corresponding second connecting plate 26 by two first screws 27.

[0029] To improve the passive heat dissipation performance of the housing 1, auxiliary heat-conducting components 2 and 5 are integrally provided on both sides of the cover plate 3, with the two auxiliary heat-conducting components 2 and 5 respectively facing the two auxiliary heat-conducting components 1 and 4 longitudinally. A support member 28 is fixed to the upper surface of the base plate 2 at the center, and a control board 6 is laid on top of the support member 28. The control board 6 is composed of a circuit board, and a central processing unit 7 is mounted on its upper surface. The installation method of the central processing unit 7 is common knowledge in the art and does not involve the improvement of this solution, so it will not be described in detail. The control board 6 is fixed to the upper surface of the base plate 2 by multiple second screws 29, thereby completing the locking of the control board 6. A heat exchange element 8 for heat exchange with the central processing unit 7 is attached to the upper surface of the central processing unit 7. The heat exchange element 8 is preferably a square copper block. The upper surface of the heat exchange element 8 is provided with copper heat exchange tubes 9 for heat exchange with the heat exchange element 8. There are two sets of heat exchange tubes 9, each facing the direction of the two auxiliary heat conduction components 4. Each set of heat exchange tubes 9 has two tubes arranged horizontally to achieve efficient heat conduction and reduce the volume of the box 1. Each set of heat exchange tubes 9 extends between the corresponding auxiliary heat conduction component 4 and auxiliary heat conduction component 5 to exchange heat with them. Side plates 18 are integrally provided on both sides of the two auxiliary heat conduction components 25 facing each other, respectively abutting against the facing sides of the two auxiliary heat conduction components 4. End caps 10 are installed at both the front and rear ends of the box 1. The end caps 10 cover the end faces of the bottom plate 2, the cover plate 3, the auxiliary heat conduction component 4, the auxiliary heat conduction component 2, and the side plates 18 to achieve comprehensive protection. The base plate 2, cover plate 3, auxiliary heat-conducting component 1 4, auxiliary heat-conducting component 2 5 and side plate 18 are all made of heat-conducting materials, preferably aluminum alloy, which can ensure heat conduction efficiency, reduce costs and ensure the sturdiness of the box body 1.

[0030] To improve heat transfer performance, the outer surface of the heat exchange tube 9 is fitted to the mating surface of the cover plate 3. The mating surface of the cover plate 3 has a heat exchange groove 11 for the heat exchange tube 9 to be fitted in, and the upper surface of the heat exchange element 8 has a heat exchange groove 12 for the heat exchange tube 9 to be fitted in. The upper surface of the heat exchange tube 9 protrudes beyond the upper surface of the heat exchange element 8 to achieve the fitting of the heat exchange tube 9 with the cover plate 3, thereby improving heat exchange efficiency. The upper surface of the auxiliary heat-conducting component 4 has a heat-conducting groove 13 for the heat exchange tube 9 to be fitted in, and the lower surface of the auxiliary heat-conducting component 5 has a heat-conducting groove 14 for the heat exchange tube 9 to be fitted in, corresponding to the position of the heat-conducting groove 13.

[0031] To improve the heat dissipation performance of the cover plate 3, auxiliary heat-conducting component 4, auxiliary heat-conducting component 5, and side plate 18, a number of heat dissipation fins 15 are distributed in parallel on the upper surface of the cover plate 3, a number of heat dissipation fins 16 are distributed in parallel on the lower surface of the auxiliary heat-conducting component 4, a number of heat dissipation fins 17 are distributed in parallel on the upper surface of the auxiliary heat-conducting component 5, and a number of heat dissipation fins 19 are distributed in parallel on the outer surface of the side plate 18. The heat dissipation fins 15, 16, 17, and 19 are all made of aluminum alloy and are integrally formed with the cover plate 3, auxiliary heat-conducting component 4, auxiliary heat-conducting component 5, and side plate 18, respectively.

[0032] To facilitate the installation of the cover plate 3, the four corners of the heat exchange element 8 are fixed to the cover surface of the cover plate 3 by the third screw 30, so that the heat exchange element 8, heat exchange tube 9 and cover plate 3 can form a complete heat dissipation assembly and be spliced ​​with the base plate 2 and the auxiliary heat conduction components 4 on both sides.

[0033] In order to improve the heat dissipation performance of heat dissipation fins 2 16 and 3 17, heat dissipation fins 2 16 and 3 17 are perpendicular to the end cover 10, and heat dissipation openings 20 are provided on the end cover 10 corresponding to the positions of heat dissipation fins 2 16 and 3 17.

[0034] To improve the assembly efficiency and convenience of the main unit box, both ends of the heat dissipation fin 2 16 are provided with limiting member 1 21, and both ends of the heat dissipation fin 3 17 are provided with limiting member 22. The limiting member 1 21 and the limiting member 22 located on the same side are respectively engaged with the lower edge and the upper edge of the heat dissipation port 20, and the limiting member 1 21 and the limiting member 22 are the same width as the lower edge and the upper edge of the heat dissipation port 20, so as to achieve the lateral positioning of the end cover 10.

[0035] To prevent the end cap 10 from falling off during pre-positioning, both sides of the limiting member 1 21 and the limiting member 22 are integrally provided with arc-shaped snap-fit ​​members 23, and the upper and lower edges of the heat dissipation port 20 are provided with arc-shaped slots 24 for the two arc-shaped snap-fit ​​members 23 to be elastically snapped together.

[0036] In order to achieve a stable connection of the end caps 10, both end caps 10 are fixed to the front and rear ends of the box body 1 respectively by the fourth screw 31, and the connection point of the fourth screw 31 covers the location of the cover plate 3, the two auxiliary heat conduction components 4, the two auxiliary heat conduction components 5 and the side plate 18, so as to make the entire box body 1 more stable.

[0037] The specific usage process is as follows: When installing the main unit box, firstly, the first connecting plates 25 on both sides of the base plate 2 are fixed to the second connecting plates 26 on the two auxiliary heat-conducting components using the first screw 27. Then, the control board 6, which carries the central processing unit 7, is fixed to the upper surface of the base plate 2 using the second screw 29. Next, the four heat exchange tubes 9 are respectively inserted into the four heat exchange slots 11 of the cover plate 3, and the ends of all heat exchange tubes 9 away from the heat exchange element 8 are inserted into the heat conduction slots 14 of the corresponding auxiliary heat-conducting components 5. At the same time, the overlapping sections of the four heat exchange tubes 9 are pressed by the heat exchange element 8, so that the four heat exchange slots 12 on the heat exchange element 8 are respectively inserted into the parts of the four heat exchange tubes 9 that protrude from the cover surface of the cover plate 3. The heat exchange element 8 is fixed to the cover surface of the cover plate 3 using the third screw 30, thereby locking the four heat exchange tubes 9 onto the cover plate 3, so that the cover plate 3, the heat exchange element 8, and the heat exchange tubes 9 form a complete heat dissipation assembly. At this time, apply silicone grease to the side of the heat exchange element 8 away from the cover plate 3, and then cover the cover plate 3 onto the base plate 2. During this process, the side plates 18 on both sides can respectively abut against the outer walls of the two auxiliary heat conduction components 4 so that the heat exchange element 8 on the cover plate 3 can accurately abut against the upper surface of the central processing unit 7, and the end of the heat exchange tube 9 away from the heat exchange element 8 is snapped into the heat conduction groove 13 of the auxiliary heat conduction component 4, while the limiting component 21 and the limiting component 22 on the same side are arranged opposite to each other. In this state, the two end caps 10 are respectively covered on the front and rear ends of the box body 1, so that the same set of limiting components 21 and 22 can be elastically snapped into the arc-shaped slots 24 on the lower and upper edges of the corresponding heat dissipation port 20 by the arc-shaped snap-fit ​​component 23, thereby completing the longitudinal locking of the auxiliary heat conduction component 4 and the auxiliary heat conduction component 2, and thus completing the longitudinal pre-positioning of the cover plate 3 and the base plate 2. After the pre-positioning is completed, the end cap 10 is locked to the front and rear sides of the box 1 by the fourth screw 31, and the installation of the box 1 is completed. In order to improve the heat exchange efficiency, during the assembly process, silicone grease can be applied to the heat exchange tank 11, heat exchange tank 22, heat conduction tank 13 and heat conduction tank 24, and then connected to the heat exchange tube 9.

[0038] When the main unit is running, the heat generated by the central processing unit 7 can be conducted to the heat exchange tube 9 through the heat exchange element 8, and then conducted to the cover plate 3, auxiliary heat conduction component 4 and auxiliary heat conduction component 5 respectively through the heat exchange tube 9. Finally, the heat is dissipated through the heat dissipation fins 15, 16, 17 and 19 to reduce the operating temperature of the main unit.

Claims

1. A host enclosure with passive heat dissipation function, comprising a enclosure body (1), characterized in that: The box body (1) includes a bottom plate (2) and a cover plate (3) covering the bottom plate (2). Auxiliary heat-conducting components (4) are attached to both sides of the bottom plate (2), and auxiliary heat-conducting components (5) are provided on both sides of the cover plate (3). A control plate (6) is provided on the upper surface of the bottom plate (2). A central processing unit (7) is provided on the upper surface of the control plate (6). A heat exchange element (8) for heat exchange with the central processing unit (7) is attached to the upper surface of the central processing unit (7). A heat exchange element (8) for heat exchange with the central processing unit (7) is provided on the upper surface of the heat exchange element (8). The heat exchange tube (9) is used for heat exchange. The heat exchange tube (9) extends between the auxiliary heat conduction component 1 (4) and the auxiliary heat conduction component 2 (5) to exchange heat with the auxiliary heat conduction component 1 (4) and the auxiliary heat conduction component 2 (5). The front and rear ends of the box body (1) are equipped with end caps (10). The end caps (10) cover the end faces of the bottom plate (2), the cover plate (3), the auxiliary heat conduction component 1 (4) and the auxiliary heat conduction component 2 (5). The bottom plate (2), the cover plate (3), the auxiliary heat conduction component 1 (4) and the auxiliary heat conduction component 2 (5) are all made of heat-conducting material.

2. A host enclosure with passive heat dissipation function according to claim 1, characterized in that: The outer surface of the heat exchange tube (9) is attached to the cover surface of the cover plate (3).

3. A host enclosure with passive heat dissipation function according to claim 2, characterized in that: The cover plate (3) has a heat exchange groove (11) for the heat exchange tube (9) to be inserted on the cover surface.

4. A host enclosure with passive heat dissipation function according to claim 1, characterized in that: The upper surface of the heat exchange element (8) is provided with a heat exchange groove (12) for the heat exchange tube (9) to be inserted, and the upper surface of the heat exchange tube (9) protrudes from the upper surface of the heat exchange element (8).

5. A host enclosure with passive heat dissipation function according to claim 4, characterized in that: The heat exchange element (8) is fixed to the cover surface of the cover plate (3).

6. A host enclosure with passive heat dissipation function according to claim 1, characterized in that: The upper surface of the auxiliary heat-conducting component 1 (4) is provided with a heat-conducting groove 1 (13) for the heat exchange tube (9) to be inserted, and the lower surface of the auxiliary heat-conducting component 2 (5) is provided with a heat-conducting groove 2 (14) for the heat exchange tube (9) to be inserted, corresponding to the position of the heat-conducting groove 1 (13).

7. A host enclosure with passive heat dissipation function according to claim 1, characterized in that: The upper surface of the cover plate (3) is provided with several heat dissipation fins (15), the lower surface of the auxiliary heat conduction component (4) is provided with several heat dissipation fins (16), the upper surface of the auxiliary heat conduction component (5) is provided with several heat dissipation fins (17), and the two auxiliary heat conduction components (5) are provided with side plates (18) on opposite sides, which respectively abut against the opposite sides of the two auxiliary heat conduction components (4). The outer surface of the side plate (18) is provided with several heat dissipation fins (19).

8. A host enclosure with passive heat dissipation function according to claim 7, characterized in that: The end cap (10) has heat dissipation openings (20) corresponding to the positions of heat dissipation fins 2 (16) and 3 (17).

9. A host enclosure with passive heat dissipation function according to claim 8, characterized in that: Both ends of the heat dissipation fin 2 (16) are provided with limiting member 1 (21), and both ends of the heat dissipation fin 3 (17) are provided with limiting member 2 (22). The limiting member 1 (21) and the limiting member 2 (22) located on the same side are respectively engaged with the lower edge and the upper edge of the heat dissipation port (20).

10. A host enclosure with passive heat dissipation function according to claim 9, characterized in that: Both sides of the limiting member 1 (21) and the limiting member 2 (22) are provided with arc-shaped snap-fit ​​parts (23), and the upper and lower edges of the heat dissipation port (20) are provided with arc-shaped slots (24) for the two arc-shaped snap-fit ​​parts (23) to snap-fit ​​together.

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