Receiving power supply box with optimized heat dissipation structure
By using a sealed box structure and an inverted power board, along with an insulating thermally conductive film and an aluminum alloy heat dissipation inner plate, the heat dissipation, waterproofing, and dustproofing issues of the receiving power box are solved, thereby improving the safety and service life of the power box.
Patent Information
- Application Number
- CN202423075149.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The existing heat dissipation method of the receiver power box makes it difficult to waterproof and dustproof, and the heat dissipation effect is not ideal, which increases the risk of the power box.
It adopts a sealed box structure, with the power board installed in an inverted manner. It uses an insulating thermally conductive film and a heat dissipation inner plate for heat transfer, combined with an aluminum alloy heat dissipation box cover and thermal grease to achieve sealed heat dissipation.
It achieves excellent heat dissipation while maintaining the waterproof and dustproof function of the power supply box, thus improving safety and service life.
Smart Images
Figure CN223567920U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to receiving power box. BACKGROUND
[0002] The receiving power box generally comprises a box body, a power board is installed in the box body, the installation mode of the power board is commonly side installation or vertical installation, and heat dissipation is carried out through the heat dissipation holes on the box body, the heat dissipation mode leads to the difficulty of waterproof and dustproof of the power box, and the heat dissipation effect is not very ideal, the risk of the product is increased as the product is electrified, and the probability of burning the power circuit is high. SUMMARY
[0003] The technical problem solved by the present application is to provide a receiving power box with improved heat dissipation structure.
[0004] The technical scheme adopted by the utility model to solve the technical problem is: the receiving power box with optimized heat dissipation structure has a sealed box body, the box body comprises a box body and a heat dissipation box cover covering the top of the box body, the power box further comprises a power board, an insulating heat conducting film and a heat dissipation inner plate, the top of the power board is provided with the insulating heat conducting film, the insulating heat conducting film is installed on the bottom of the heat dissipation inner plate, and the heat dissipation inner plate is installed on the bottom of the heat dissipation box cover.
[0005] The receiving power box with optimized heat dissipation structure as described above, the top surface of the heat dissipation inner plate is provided with a heat conducting layer.
[0006] The receiving power box with optimized heat dissipation structure as described above, the heat conducting layer adopts heat conducting silicone grease.
[0007] The receiving power box with optimized heat dissipation structure as described above, the power board, the insulating heat conducting film and the heat dissipation inner plate are locked and connected by a screw assembly.
[0008] The receiving power box with optimized heat dissipation structure as described above, the screw assembly comprises a barrel and a screw, the power board, the insulating heat conducting film and the heat dissipation inner plate are provided with corresponding through holes, the barrel is inserted into the through hole, the screw is locked from the head of the barrel, and the head of the screw and the tail of the barrel both have a radial portion that exceeds the through hole.
[0009] The receiving power box with optimized heat dissipation structure as described above, the inside of the box body is provided with a supporting column, and the power board is fixed on the supporting column.
[0010] The receiving power box with optimized heat dissipation structure as described above, the box body is integrally formed, and a waterproof sealing ring is arranged between the box cover and the box body.
[0011] The receiving power box with optimized heat dissipation structure has a groove on the top of the inner side wall of the box body, and the waterproof sealing ring is arranged in the groove.
[0012] The receiving power box with optimized heat dissipation structure has a PG7 waterproof joint on the outer side of the power box.
[0013] The receiving power box with optimized heat dissipation structure has an aluminum alloy heat dissipation inner plate and heat dissipation box cover.
[0014] The receiving power box with optimized heat dissipation structure has an aluminum alloy heat dissipation inner plate and heat dissipation box cover. BRIEF DESCRIPTION OF DRAWINGS
[0015] Some specific embodiments of the present application will be described in detail below with reference to the accompanying drawings, which are shown by way of example and are not limiting. Identical reference signs denote identical or similar components or parts in the figures. It should be understood by those skilled in the art that the figures are not necessarily drawn to scale.
[0016] In the drawings:
[0017] Figure 1 The figure is a schematic diagram of the receiving power box of the present application.
[0018] Figure 2 The figure is an exploded schematic diagram of the receiving power box of the present application.
[0019] Figure 3 The figure is a schematic diagram of the screw assembly in the receiving power box of the present application.
[0020] The figure is a schematic diagram of the screw assembly in the receiving power box of the present application.
[0021] 1, receiving power box; 2, box body; 20, support column; 21, groove; 3, box cover; 4, power board; 5, insulating heat-conducting film; 6, heat dissipation inner plate; 7, waterproof sealing ring; 8, through hole; 9, screw assembly; 90, barrel; 91, screw (screw assembly); 10, waterproof joint. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.
[0023] All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present application without any creative effort fall within the scope of the present application. Unless otherwise defined, the technical terms or scientific terms used in the present application should have the usual meaning understood by those of ordinary skill in the art to which the present application belongs.
[0024] The terms "first", "second", and similar terms used in the present application do not indicate any order, number or importance, but are only used to distinguish different components. Similarly, the terms "one", "an" or "the" do not indicate a quantity limitation, but indicate the existence of at least one. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms cover the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms "up", "down", "left", "right" and the like are only used to indicate relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.
[0025] Referring to the drawings Figures 1-2 The receiving power box 1 shown in the drawings is a heat dissipation structure optimized receiving power box 1, which has a sealed box body, the box body including a box body 2 and a heat dissipation box cover 3 covering the top of the box body 2; the power box further includes a power board 4, an insulating heat-conducting film 5 and a heat dissipation inner plate 6, the top of the power board 4 is provided with the insulating heat-conducting film 5, the insulating heat-conducting film 5 is installed against the bottom of the heat dissipation inner plate 6, and the heat dissipation inner plate 6 is installed against the bottom of the heat dissipation box cover 3.
[0026] The box body 2 can adopt a square shape, and has an accommodating space inside. An opening is arranged at the top of the box body 2. After the opening is covered by the box cover 3, the whole box body 2 is in a sealed shape, which can effectively prevent water and dust. The heat dissipation box cover 3 is used as a bearing component. The power board 4 and the heat dissipation inner plate 6 are arranged at the bottom of the heat dissipation box cover 3. The insulating heat conduction film 5 is clamped between the power board 4 and the heat dissipation inner plate 6, so as to ensure the safety of the circuit. The material of the insulating heat conduction film 5 is silica gel, which can not only be insulated but also can transmit heat. The heat of the power board 4 is transmitted to the heat dissipation inner plate 6, and then is transmitted to the heat dissipation box cover 3, so that the heat inside the receiving power box 1 is dissipated. The heat dissipation inner plate 6 and the heat dissipation box cover 3 can both adopt an aluminum alloy material. The heat dissipation inner plate 6 is made of AL6063, and the heat dissipation box cover 3 is made of AL5052.
[0027] In a specific application scenario, for example, when the vehicle is placed on the road in rainy weather, the receiving power box 1 needs to have strict waterproof protection. In the embodiment, the power board 4 is provided with a 4G module. After receiving a signal instruction, the receiving power box 1 starts normal charging work. After the power is fully charged, the receiving power box 1 starts overvoltage protection. In the working process, the receiving power box 1 generates a large amount of heat. In the embodiment, the power board 4 is inverted. The heat transfer between the heat dissipation structures realizes the heat dissipation of the receiving power box 1. No heat dissipation hole is needed, the sealing of the box body is ensured, the power box has good waterproof and dustproof function, and the hidden danger of the foregoing application scenario can be coped with.
[0028] In some embodiments, the top surface of the heat dissipation inner plate 6 is provided with a heat conduction layer. The heat conduction layer can be made of heat-conducting silicone grease, which is applied to the top surface of the heat dissipation inner plate 6 to improve the heat conduction efficiency.
[0029] In some embodiments, the power board 4, the insulating heat conduction film 5 and the heat dissipation inner plate 6 are connected by a screw assembly 9. The power board 4, the insulating heat conduction film 5 and the heat dissipation inner plate 6 are connected as a whole by the screw assembly 9, and then the whole is installed in the box body 2. Then the heat dissipation box cover 3 is covered. This assembly method is very simple.
[0030] Referring to the drawings Figure 3 Specifically, the screw assembly 9 includes a barrel 90 and a screw 91. The power board 4, the insulating heat conduction film 5 and the heat dissipation inner plate 6 are provided with corresponding through holes 8. The barrel 90 is inserted into the through hole 8. The screw 91 is locked from the head of the barrel 90. The head of the screw 91 and the tail of the barrel 90 both have a radial dimension that exceeds the hole diameter of the through hole 8.
[0031] The corresponding through holes 8 arranged on the power board 4, the insulating heat conduction film 5 and the heat dissipation inner plate 6 can be multiple groups. Correspondingly, the screw assembly 9 is also multiple groups, for example,Figure 2 As shown, three sets of through holes 8 and three sets of screw assemblies 9. The barrel 90 is passed through the corresponding through holes 8 group through the heat dissipation inner plate 6, the insulating heat-conducting film 5 and the power board 4, the head opening of the barrel 90 is internally threaded, the screw 91 is screwed into the opening, and the screw 91 is screwed into the internal thread of the barrel 90, and the heat dissipation inner plate 6, the insulating heat-conducting film 5 and the power board 4 are locked together. Generally, the head of the screw 91 is a nut, which has a radial dimension larger than the through hole 8, and the tail of the barrel 90 can be provided with a flange extending radially to exceed the through hole 8. After the screw 91 is screwed into the barrel 90, it cannot pass through the barrel 90 and protrude from the heat dissipation inner plate 6, which is beneficial to ensure that the heat dissipation inner plate 6 is closely attached to the heat dissipation box cover 3, and facilitates the rapid dissipation of heat.
[0032] In some embodiments, the inner side of the box body 2 is provided with a supporting column 20, and the power board 4 is fixed on the supporting column 20. As shown in the accompanying drawings Figure 2 As shown, the box body 2 in the figure is square, and a supporting column 20 is arranged at each of the four corners, and the power board 4 is fixed on the supporting column 20 by screws.
[0033] In order to ensure the waterproof sealing of the box body, the box body 2 is integrally formed by injection molding, and the box cover 3 is locked with the box body 2 by screws, and a waterproof sealing ring 7 is arranged between the two. The hardness of the waterproof sealing ring 7 is ≤30°. Specifically, a groove 21 is arranged on the top of the inner side wall of the box body 2 (i.e. the opening of the box body 2), the waterproof sealing ring 7 is arranged in the groove 21, and the box cover 3 is pressed above the sealing ring. As shown in the accompanying drawings Figure 2 As shown, a sunken step-shaped groove 21 is arranged on the top of the inner side wall of the box body 2, a screw hole is arranged at the top corner position of the groove 21, the waterproof sealing ring 7 is placed on the groove 21, then the heat dissipation box cover 3 is closed and pressed above the waterproof sealing ring 7, and then the screw is locked into the screw hole of the groove 21, so that the heat dissipation box cover 3 is tightly closed on the box body 2, ensuring the sealing of the box body.
[0034] In some embodiments, the outer side of the power supply box is provided with a PG7 waterproof connector 10 connected with the power board 4, each waterproof connector 10 is provided with a quick wiring terminal, can be directly connected, realizes the straight pull type operation, and is simple and easy to use.
[0035] The improved power board 4 inside the receiving power supply box 1 adopts an inverted manner, and heat transfer and dissipation are realized by means of the heat dissipation inner plate 6 and the heat dissipation box cover 3, which ensures the sealing of the box body and has good heat dissipation, waterproof and dustproof effect.
[0036] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications, combinations and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims
1. A receiving power box with optimized heat dissipation structure, characterized in that: the receiving power box has a sealed box body, which comprises a box body and a heat dissipation box cover covering the top of the box body; the power box further comprises a power board, an insulating heat-conducting film and a heat dissipation inner plate, the top of the power board is provided with the insulating heat-conducting film, the insulating heat-conducting film is installed on the bottom of the heat dissipation inner plate, and the heat dissipation inner plate is installed on the bottom of the heat dissipation box cover.
2. The receiving power box with optimized heat dissipation structure according to claim 1, characterized in that: a heat-conducting layer is arranged on the top surface of the heat dissipation inner plate.
3. The receiving power box with optimized heat dissipation structure according to claim 2, characterized in that: the heat-conducting layer is made of heat-conducting silicone grease.
4. The receiving power box with optimized heat dissipation structure according to claim 2, characterized in that: the power board, the insulating heat-conducting film and the heat dissipation inner plate are connected by a screw assembly.
5. The receiving power box with optimized heat dissipation structure according to claim 4, characterized in that: the screw assembly comprises a barrel and a screw, the power board, the insulating heat-conducting film and the heat dissipation inner plate are provided with corresponding through holes, the barrel is inserted into the through holes, the screw is locked from the head of the barrel, and the head of the screw and the tail of the barrel both radially extend beyond the through holes.
6. The receiving power box with optimized heat dissipation structure according to claim 4, characterized in that: the inner side of the box body is provided with a supporting column, and the power board is fixed on the supporting column.
7. The receiving power box with optimized heat dissipation structure according to claim 1, characterized in that: the box body is integrally formed, and a waterproof sealing ring is arranged between the box cover and the box body.
8. The receiving power box with optimized heat dissipation structure according to claim 7, characterized in that: a groove is arranged along the top of the inner side wall of the box body, the waterproof sealing ring is arranged in the groove, and the box cover is pressed above the sealing ring.
9. The receiving power box with optimized heat dissipation structure according to claim 1, characterized in that: a PG7 waterproof connector connected with the power board is arranged on the outer side of the power box.
10. The receiving power box with optimized heat dissipation structure according to claim 1, characterized in that: the heat dissipation inner plate and the heat dissipation box cover are made of aluminum alloy.