A fan-concealed heat dissipation structure for outdoor batteries
By designing a hidden heat dissipation structure in the outdoor battery, and installing the cooling fan upside down, and utilizing fins and air duct design, the problem of easy damage to the outdoor battery cooling fan is solved, resulting in a longer service life and higher heat dissipation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN WALKER ELECTRIC VEHICLE TECHNOLOGY CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-06-30
AI Technical Summary
The cooling fans of outdoor batteries are easily damaged by rain, dust and foreign objects, which can shorten their lifespan.
Design a hidden fan heat dissipation structure, invert the heat dissipation fan and install it in the space between the circuit board and the battery, and use the air duct formed by the heat sink and fins to hide the heat dissipation. The fins are designed at different angles to prevent dust and foreign objects from entering, and the outer shell provides protection.
This effectively prevents the fan from directly contacting rain and dust, extending the lifespan of the cooling fan and improving the overall lifespan of the power supply.
Smart Images

Figure CN224437670U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of power supply heat dissipation structure technology, and in particular to a fan-concealed heat dissipation structure for outdoor batteries. Background Technology
[0002] There are two ways to cool a power supply: air cooling and natural cooling. Air cooling is the most common and effective method.
[0003] Current power supply air cooling requires the cooling fan to be installed on the side of the circuit board or next to the heat sink for heat dissipation. When air cooling is used outdoors, the fan is prone to damage because it is open to the outside world. Rain, dust, foreign objects and other external factors can directly contact the fan, making it very easy to damage it. Utility Model Content
[0004] This disclosure provides a fan-concealed heat dissipation structure for outdoor batteries to solve one of the technical problems recognized by the inventors.
[0005] This disclosure provides a fan-concealed heat dissipation structure for outdoor batteries, including a heat sink, a main circuit board fixedly connected to the surface of the heat sink, a cooling fan fixedly connected to the side of the heat sink away from the main circuit board, an air duct clamping plate covering the bottom of the heat sink, and an air inlet and an air outlet respectively opened on the side of the heat sink.
[0006] Preferably, the heat sink includes a heat sink housing, the main circuit board is fixedly connected to the surface of the heat sink housing, the cooling fan is fixedly connected to the middle of the side of the heat sink housing away from the main circuit board, the heat sink housing is integrally formed with multiple heat sink fins, the multiple heat sink fins form multiple air ducts with each other, the multiple heat sink fins are arranged around the cooling fan, the air inlet and air outlet are arranged on opposite sides of the heat sink housing, and the air duct clamp is covered on the open end of the heat sink housing.
[0007] Preferably, the heat dissipation fins include a first fin and a second fin. The first fin is arranged perpendicular to the direction of the air inlet or air outlet, and the second fin is integrally formed with the first fin and bent toward the direction of the cooling fan, so that the direction of the air duct is bent.
[0008] Preferably, the heat dissipation housing has a wire through hole.
[0009] Preferably, the surface cover of the heat dissipation housing is provided with a shielding protective shell, which covers the main circuit board.
[0010] Preferably, the heat sink housing and heat sink fins are made of aluminum.
[0011] Preferably, the duct clamp is an aluminum duct cover plate.
[0012] The main beneficial effects of this disclosure are as follows: By installing the heat dissipation structure in the sandwich position between the power supply and the main circuit board, the fan structure is hidden and inverted in the heat dissipation structure, which can maximize the avoidance of problems such as direct rain, vertical dust accumulation, and foreign object entry, and effectively extend the service life of the cooling fan, thereby ensuring the overall service life of the power supply.
[0013] It should be understood that both the foregoing general description and the following detailed description are for illustrative purposes and do not necessarily limit the scope of this disclosure. The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate the subject matter of this disclosure. Furthermore, the specification and drawings serve to explain the principles of this disclosure. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0015] Figure 1 This is a schematic diagram of a fan-concealed heat dissipation structure according to an embodiment of the present disclosure;
[0016] Figure 2 This is a perspective structural diagram of the heat sink according to an embodiment of the present disclosure;
[0017] Figure 3 This is a schematic diagram of the bottom structure of the heat sink according to an embodiment of the present disclosure;
[0018] Figure 4 This is a schematic diagram of the internal structure of the heat sink according to an embodiment of the present disclosure;
[0019] Figure 5 This is a schematic diagram of the heat dissipation housing structure according to an embodiment of the present disclosure;
[0020] Icons: 100-Heater; 11-Heater housing; 12-Heater fins; 121-First fin; 122-Second fin; 13-Air inlet; 14-Air outlet; 15-Wire hole; 16-Airflow duct; 200-Main circuit board; 201-Shielding protective shell; 300-Cooling fan; 400-Airflow duct clamp. Detailed Implementation
[0021] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.
[0022] All other embodiments obtained by those skilled in the art based on the embodiments in this disclosure without inventive effort are within the scope of protection of this disclosure.
[0023] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0024] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.
[0025] Example
[0026] like Figure 1-5 As shown, this embodiment provides a fan-concealed heat dissipation structure for outdoor batteries, including a heat sink 100. A main circuit board 200 is bolted to the surface of the heat sink 100. The main circuit board 200 integrates a power supply circuit for a cooling fan 300 and a main power supply circuit. A cooling fan 300 is bolted to the side of the heat sink 100 away from the main circuit board 200. The cooling fan 300 is installed upside down. A duct clamp 400 is provided at the bottom of the heat sink 100 to cover the bottom of the heat sink 100 and form protection. An air inlet 13 and an air outlet 14 are respectively opened on the side of the heat sink 100. When the cooling fan 300 is working, the air inlet 13 and the air outlet 14 are used for air intake and air exhaust, respectively, to accelerate the internal airflow, remove heat, and achieve the effect of heat dissipation.
[0027] Specifically, the radiator 100 includes a heat sink housing 11. The main circuit board 200 is bolted to the surface of the heat sink housing 11, and is tightly fitted to the heat sink housing 11 to facilitate heat transfer and dissipation. The cooling fan 300 is bolted to the middle of the side of the heat sink housing 11 away from the main circuit board 200, and the cooling fan 300 is installed upside down to avoid dust accumulation affecting the operation of the cooling fan 300, improve the service life of the cooling fan 300, and provide better waterproofing to prevent water from entering. The heat sink housing 11 is integrally formed with multiple heat dissipation fins 12, and the multiple heat dissipation fins 12 are interconnected. Multiple air ducts 16 are formed between the heat sink and the cooling fan 300. The cooling fins 12 are arranged around the cooling fan 300. The cooling fins 12 increase the contact area between the heat sink housing 11 and the air, thereby improving the heat dissipation efficiency. When the cooling fan 300 is working, the airflow passes through the air ducts 16 and carries away the heat from the cooling fins 12, thereby improving the heat dissipation effect. The air inlet 13 and the air outlet 14 are arranged on opposite sides of the heat sink housing 11 to facilitate the exchange of air inside the radiator 100 and outside air, thereby improving the heat dissipation efficiency. The air duct clamp 400 is covered on the opening end of the heat sink housing 11 to shield the bottom of the radiator 100 and reduce the entry of dust and rainwater.
[0028] Furthermore, the heat dissipation fins 12 include a first fin 121 and a second fin 122. The first fin 121 is perpendicular to the direction of the air inlet 13 or the air outlet 14. The second fin 122 is integrally formed with the first fin 121 and bent towards the direction of the cooling fan 300, thus bending the direction of the air duct 16. By setting the first fin 121 and the second fin 122 at different angles, the air duct 16 is bent, which can prevent dust from directly entering and prevent foreign objects from directly contacting the cooling fan 300, thus protecting the cooling fan 300 and preventing personnel from touching the cooling fan 300 with their fingers, thereby improving the safety factor.
[0029] In one embodiment, the heat dissipation housing 11 is provided with a wire hole 15. The heat dissipation housing 11 is installed in the sandwich position between the battery and the main circuit board 200. The wires are connected through the wire hole 15 to make the main circuit board 200 and the battery connected and conductive. No external wiring is required, which can protect the wires. In addition, the wire hole 15 is sealed around to prevent dust and rainwater from entering the battery or the main circuit board 200.
[0030] In one embodiment, the surface of the heat dissipation housing 11 is covered with a shielding protective shell 201, which covers the main circuit board 200. The shielding protective shell 201 protects the main circuit board 200 from dust and rain, preventing damage from external contact.
[0031] In one embodiment, the heat sink 11 and the heat sink fins 12 are made of aluminum. Aluminum has good thermal conductivity, enabling it to conduct heat quickly and accelerate heat dissipation efficiency.
[0032] In one embodiment, the duct 16 cover is an aluminum cover. Aluminum has good thermal conductivity, enabling rapid heat conduction and accelerating heat dissipation efficiency.
[0033] The working principle of this utility model is as follows: By installing the heat sink 100 in the interlayer between the main circuit board 200 and the battery, and installing the cooling fan 300 upside down, contact with the outside environment is effectively avoided, forming a hidden heat dissipation function and improving the heat dissipation effect. Furthermore, by setting the first fin 121 and the second fin 122 at different angles, the air duct 16 is bent, which can prevent dust from directly entering and prevent foreign objects from directly contacting the cooling fan 300, thus protecting the cooling fan 300 and preventing personnel from touching the cooling fan 300 with their fingers, thereby improving the safety factor.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit them. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure.
Claims
1. A fan-concealed heat dissipation structure for outdoor batteries, characterized in that, include: A radiator is provided, wherein a main circuit board is fixedly connected to the surface of the radiator, a cooling fan is fixedly connected to the side of the radiator away from the main circuit board, an air duct clamp is provided at the bottom of the radiator, and an air inlet and an air outlet are respectively provided on the side of the radiator.
2. The fan-concealed heat dissipation structure for outdoor batteries according to claim 1, characterized in that, The heat sink includes a heat sink housing, a main circuit board fixedly connected to the surface of the heat sink housing, and a cooling fan fixedly connected to the middle of the side of the heat sink housing away from the main circuit board. The heat sink housing is integrally formed with multiple heat sink fins, which form multiple air ducts with each other. The multiple heat sink fins are arranged around the cooling fan. The air inlet and air outlet are arranged on opposite sides of the heat sink housing, and the air duct clamp is covered on the open end of the heat sink housing.
3. The fan-concealed heat dissipation structure for outdoor batteries according to claim 2, characterized in that, The heat dissipation fins include a first fin and a second fin. The first fin is arranged perpendicular to the direction of the air inlet or air outlet. The second fin is integrally formed with the first fin and is bent toward the direction of the cooling fan, so that the direction of the air duct is bent.
4. A fan-concealed heat dissipation structure for outdoor batteries according to claim 2, characterized in that, The heat dissipation housing has a wire hole.
5. A fan-concealed heat dissipation structure for outdoor batteries according to claim 2, characterized in that, The surface of the heat dissipation housing is covered with a shielding protective shell, which covers the main circuit board.
6. A fan-concealed heat dissipation structure for outdoor batteries according to claim 5, characterized in that, The heat sink housing and heat sink fins are made of aluminum.
7. A fan-concealed heat dissipation structure for outdoor batteries according to claim 1, characterized in that, The air duct clamp is an aluminum cover plate for the air duct.