Heat dissipation structure and electric vehicle

Abstract

The utility model provides a heat dissipation structure and an electric vehicle, the heat dissipation structure comprises a bearing part, a control assembly and a vehicle frame, the control assembly is arranged on the bearing part and attached to the bearing part, the vehicle frame is connected with the bearing part, and the vehicle frame and the bearing part are connected into a whole. The bearing part can serve as a heat dissipation part and conduct and dissipate heat generated by the control assembly, the heat generated by the control assembly is conducted to the bearing part and conducted to the vehicle frame through the bearing part, and the vehicle frame can serve as a heat dissipation part and conduct and dissipate heat generated by the control assembly. The heat of the control assembly can be quickly dissipated through the frame, the temperature of the control assembly can be reduced, the phenomena of poor work, damage and the like caused by load reduction of the control assembly due to too high temperature or serious heating are avoided, and the service life of the control assembly can be further prolonged.

Description

Technical Field

[0001] This application relates to the field of electric vehicle technology, specifically to a heat dissipation structure and an electric vehicle. Background Technology

[0002] In related technologies, the heat dissipation methods for electric two-wheeled vehicle controllers mainly include natural air cooling, forced air cooling, water cooling, or oil cooling. Natural air cooling is widely used due to its simple structure and low cost. Forced air cooling requires the addition of cooling fans and control units and its heat dissipation effect is not ideal, so it is less commonly used. Water cooling or oil cooling methods are more complex in structure, requiring the design of water pumps, controller circuits, temperature sensors, and radiators. Structurally, they require the design of complex water or oil circuits, resulting in higher costs. They are mainly used in scenarios where they are matched with high-power motors.

[0003] Controllers using natural air cooling typically have a heat dissipation structure designed for the mounting plate of the MOSFET. However, due to limitations in the controller's structure and vehicle installation space, the heat dissipation area is relatively small, so it is only used in low-power controllers. But during long-term uphill driving and low-speed driving, the airflow during the driving process cannot effectively dissipate heat from the controller, and the controller's efficiency is low in this state, and the generated heat cannot be dissipated quickly. This eventually leads to severe overheating of the controller, causing it to operate at reduced power, which affects the power output of the electric vehicle. In severe cases, it can even cause the MOSFET of the controller to burn out. Utility Model Content

[0004] The purpose of this application is to provide a heat dissipation structure and an electric vehicle to solve the technical problem that the controller of an electric vehicle is prone to overheating and even damage in the related art.

[0005] In a first aspect, this application provides a heat dissipation structure for use in electric vehicles, comprising:

[0006] Load-bearing components;

[0007] A control component, wherein the control component is disposed on and fitted to the support member;

[0008] A frame, which is connected to the load-bearing member, and the frame and the load-bearing member are interconnected as a whole.

[0009] The heat dissipation structure provided in this application includes a carrier component, a control component, and a frame. The control component is mounted on and attached to the carrier component, and the frame is connected to the carrier component, with the frame and carrier component being interconnected as a single unit. The carrier component acts as a heat sink, conducting and dissipating the heat generated by the control component. The heat generated by the control component is conducted to the carrier component and then to the frame, which in turn conducts and dissipates the heat generated by the control component. This allows for rapid dissipation of the heat from the control component through the frame, reducing its temperature and preventing it from slacking off due to overheating or malfunctioning or being damaged due to excessive heat. This, in turn, extends the service life of the control component.

[0010] The support member includes a bent support plate and a connecting part. The support plate is used to support the control component, and the connecting part is used to connect the vehicle frame.

[0011] The vehicle frame includes at least one first mounting bracket extending along a preset direction, the preset direction being perpendicular to the horizontal plane. The connecting portion of the carrier is connected to the first mounting bracket, and the carrier plate of the carrier is arranged along the preset direction.

[0012] The vehicle frame includes at least one second mounting bracket, which is bent and connected to the first mounting bracket.

[0013] The connecting part includes a first connecting part and a second connecting part, which are respectively disposed on both sides of the support plate. The first connecting part is connected to the first mounting bracket, and the second connecting part is connected to the second mounting bracket.

[0014] The support member further includes a ventilation plate, which is bent and connected to the support plate, and covers the gap between the first mounting bracket and the support plate.

[0015] The ventilation panel is provided with multiple strip-shaped ventilation holes.

[0016] The heat dissipation structure further includes thermally conductive silicone, which is disposed between the control component and the carrier and is respectively attached to the control component and the carrier.

[0017] The control component includes a controller and a controller base plate, wherein the controller base plate has a multi-slot structure.

[0018] The heat dissipation structure further includes a fixing member, one end of which is connected to the control component and the other end of which is connected to the carrier component, so as to fix the control component to the carrier component.

[0019] Secondly, this application provides an electric vehicle, including a battery and the aforementioned heat dissipation structure, wherein the battery is fixed to the vehicle frame. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a structural schematic diagram of an electric vehicle provided in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of a heat dissipation structure provided in an embodiment of this application;

[0023] Figure 3 This is an exploded structural diagram of a heat dissipation structure provided in an embodiment of this application;

[0024] Figure 4 This is a structural schematic diagram of a carrier provided in an embodiment of this application.

[0025] Label Explanation:

[0026] Heat dissipation structure-100, support component-10, support plate-11, through hole-111, connecting part-12, first connecting part-121, second connecting part-122, ventilation plate-13, strip ventilation hole-131, control component-20, controller-21, controller base plate-22, frame-30, first mounting bracket-31, second mounting bracket-32, third mounting bracket-33, thermally conductive silicone-40, electric vehicle-1000, battery-200. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0028] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0030] In this specification, for convenience, terms such as "middle," "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships in conjunction with the accompanying drawings. This is solely for the purpose of facilitating the description and simplification, and does not imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this disclosure. The positional relationships of the constituent elements may be appropriately varied depending on the orientation of the constituent elements being described. Therefore, the use of terms not limited to those described in the specification may be appropriately replaced as needed.

[0031] In this specification, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate component, or a connection within two components. Those skilled in the art will understand the meaning of these terms in this disclosure as appropriate.

[0032] In related technologies, the heat dissipation methods for electric two-wheeled vehicle controllers mainly include natural air cooling, forced air cooling, water cooling, or oil cooling. Natural air cooling is widely used due to its simple structure and low cost. Forced air cooling requires the addition of cooling fans and control units and its heat dissipation effect is not ideal, so it is less commonly used. Water cooling or oil cooling methods are more complex in structure, requiring the design of water pumps, controller circuits, temperature sensors, and radiators. Structurally, they require the design of complex water or oil circuits, resulting in higher costs. They are mainly used in scenarios where they are matched with high-power motors.

[0033] Controllers using natural air cooling typically have a heat dissipation structure designed for the mounting plate of the MOSFET. However, due to limitations in the controller's structure and vehicle installation space, the heat dissipation area is relatively small, so it is only used in low-power controllers. But during long-term uphill driving and low-speed driving, the airflow during the driving process cannot effectively dissipate heat from the controller, and the controller's efficiency is low in this state, and the generated heat cannot be dissipated quickly. This eventually leads to severe overheating of the controller, causing it to operate at reduced power, which affects the power output of the electric vehicle. In severe cases, it can even cause the MOSFET of the controller to burn out.

[0034] Please refer to Figure 1 and Figure 2 This application provides a heat dissipation structure 100, which is applied to an electric vehicle 1000, to solve the technical problem in the related art that the controller of an electric vehicle is prone to overheating and even damage.

[0035] The heat dissipation structure 100 includes a support member 10, a control component 20, and a frame 30. The control component 20 is disposed on and fitted to the support member 10. The frame 30 is connected to the support member 10, and the frame 30 and the support member 10 are interconnected as a whole.

[0036] Specifically, in this embodiment, the heat dissipation structure 100 further includes a fixing member, one end of which is connected to the control component 20, and the other end is connected to the carrier 10, so as to fix the control component 20 to the carrier 10. Optionally, in this embodiment, the fixing member is a bolt structure, and the control component 20 and the carrier 10 are fixedly connected by bolts. In other embodiments, the control component 20 and the carrier 10 can also be connected by other fixing methods, such as adhesive bonding, snap-fit ​​connection, etc., and this application does not limit this.

[0037] The control component 20 is mounted on and fitted to the support member 10. In other words, the support member 10 is used to install and fix the control component 20. The control component 20 generates heat during operation. The support member 10 acts as a heat sink, conducting and dissipating the heat generated by the control component 20 to reduce its temperature and prevent malfunctions or damage caused by overheating.

[0038] Furthermore, the frame 30 is connected to the support member 10, and the frame 30 and the support member 10 are interconnected as a single unit. In other words, the frame 30 is used to mount and fix the support member 10. The control component 20 generates heat during operation, and the frame 30 acts as a heat sink to conduct and dissipate the heat generated by the control component 20. Specifically, the heat generated by the control component 20 is conducted to the support member 10 and then to the frame 30, where it is further dissipated to reduce the temperature of the control component 20 and prevent it from overheating and malfunctioning or being damaged.

[0039] The frame 30 and the support member 10 are integrally interconnected. Optionally, in this embodiment, the frame 30 and the support member 10 are welded together, which can increase the contact area between the frame 30 and the support member 10, thereby improving the thermal conductivity between the support member 10 and the frame 30. In other embodiments, the frame 30 and the support member 10 can also be integrally formed; in other words, the frame 30 and the support member 10 are manufactured in a single process. This application does not impose any limitations on this.

[0040] The heat dissipation structure 100 provided in this application includes a support member 10, a control component 20, and a frame 30. The control component 20 is disposed on and attached to the support member 10. The frame 30 is connected to the support member 10, and the frame 30 and the support member 10 are interconnected as a whole. The support member 10 can act as a heat dissipation component, conducting and dissipating the heat generated by the control component 20. The heat generated by the control component 20 is conducted to the support member 10 and then to the frame 30. The frame 30 can also act as a heat dissipation component, conducting and dissipating the heat generated by the control component 20. This allows the heat from the control component 20 to be quickly dissipated through the frame 30, reducing the temperature of the control component 20. This prevents the control component 20 from slacking off due to excessive temperature, or from malfunctioning or being damaged due to overheating, thereby extending the service life of the control component 20.

[0041] At the same time, the structure of the frame 30 is used to increase the heat dissipation area of ​​the control component 20, and the heat dissipation of the control component 20 is optimized in the lowest cost way, thus ensuring the service life of the control component 20 and the continuous output of power.

[0042] Optionally, the material of the support member 10 may include, but is not limited to, a metal material, such as iron, stainless steel, or aluminum alloy. The material of the support member 10 may also be other materials with fast thermal conductivity. This application does not limit this.

[0043] Please refer to Figures 1 to 3 , Figure 1 This is a structural schematic diagram of an electric vehicle provided in an embodiment of this application. Figure 2 This is a schematic diagram of a heat dissipation structure provided in an embodiment of this application. Figure 3 This is an exploded structural diagram of a heat dissipation structure provided in an embodiment of this application.

[0044] In one embodiment, the support member 10 includes a bent support plate 11 and a connecting portion 12, the support plate 11 being used to support the control component 20, and the connecting portion 12 being used to connect the frame 30.

[0045] The support plate 11 is used to fix the control component 20, and the connecting part 12 is used to weld the frame 30. Specifically, the support plate 11 and the connecting part 12 are bent and connected, and the support plate 11, the connecting part 12, and the frame 30 enclose a receiving space for accommodating the control component 20, thereby reducing the probability of the control component 20 being damaged by external objects within the receiving space.

[0046] In one embodiment, the frame 30 includes at least one first mounting bracket 31 extending along a preset direction D1, the preset direction D1 being perpendicular to the horizontal plane, the connecting portion 12 of the carrier 10 being connected to the first mounting bracket 31, and the carrier plate 11 of the carrier 10 being disposed along the preset direction D1.

[0047] The preset direction D1 is perpendicular to the horizontal plane, wherein the horizontal plane includes, but is not limited to, a flat ground, the placement surface of the electric vehicle 1000, etc.

[0048] Furthermore, in this embodiment, the support plate 11 of the support member 10 faces the front of the electric vehicle 1000, and the support plate 11 is parallel to the width direction of the electric vehicle 1000. In other words, when the electric vehicle 1000 is traveling in a straight line, the support plate 11 is perpendicular to the traveling direction of the electric vehicle 1000. This ensures that when the electric vehicle 1000 is in motion, ambient wind can reach the outer surface of the support plate 11 to the maximum extent, thereby further improving the heat dissipation effect and efficiency of the support plate 11.

[0049] Specifically, there are two first mounting brackets 31, which are arranged at intervals relative to each other along the width direction of the electric vehicle 1000. Both ends of the support member 10 are provided with the connecting part 12 and connected to the two first mounting brackets 31, so that the support plate 11 is parallel to the width direction of the electric vehicle 1000.

[0050] Please refer to Figures 1 to 4 , Figure 4 This is a structural schematic diagram of a carrier provided in an embodiment of this application.

[0051] In one embodiment, the support plate 11 is provided with a through hole 111, so that when the electric vehicle 1000 is traveling in a straight line, the ambient wind can blow onto the surface of the control component 20, thereby further improving the heat dissipation effect and heat dissipation efficiency of the heat dissipation structure 100.

[0052] In one embodiment, the frame 30 includes at least one second mounting bracket 32, which is bent and connected to the first mounting bracket 31.

[0053] The connecting part 12 includes a first connecting part 121 and a second connecting part 122. The first connecting part 121 and the second connecting part 122 are respectively disposed on both sides of the support plate 11. The first connecting part 121 is connected to the first mounting bracket 31, and the second connecting part 122 is connected to the second mounting bracket 32.

[0054] The first connecting part 121 and the second connecting part 122 are respectively provided on both sides of the support plate 11, and both the first connecting part 121 and the second connecting part 122 are connected to the frame 30, which helps to improve the fixing stability between the support member 10 and the frame 30 and prevent the support member 10 from separating from the frame 30.

[0055] The frame 30 includes at least one third mounting bracket 33, which is disposed between the first mounting bracket 31 and the second mounting bracket 32, and is parallel to the horizontal plane. The third mounting bracket 33 can be used to mount the power supply structure of the electric vehicle 1000.

[0056] In one embodiment, the support member 10 further includes a ventilation plate 13, which is bent to connect to the support plate 11 and covers the gap between the first mounting bracket 31 and the support plate 11.

[0057] The ventilation plate 13 covers the gap between the first mounting frame 31 and the support plate 11, which can prevent objects in the environment (such as sand, stones, branches, etc.) from entering through the gap between the first mounting frame 31 and the support plate 11 and affecting the normal operation of the control component 20 or damaging the control component 20, thereby improving the safety of the operation of the control component 20.

[0058] Furthermore, in one embodiment, the ventilation plate 13 is provided with a plurality of strip-shaped ventilation holes 131.

[0059] The strip-shaped ventilation hole 131 can be used for ventilation to facilitate the dissipation of heat generated by the control component 20 and improve the heat dissipation efficiency of the heat dissipation structure 100.

[0060] In related technologies, due to limitations in processing or assembly techniques, the control component 20 and the carrier 10 cannot be effectively fitted together (there is a certain gap), which leads to a decrease in heat conduction efficiency and thus fails to meet the heat conduction requirements.

[0061] In one embodiment, the heat dissipation structure 100 further includes thermally conductive silicone 40, which is disposed between the control component 20 and the carrier 10 and respectively adheres to the control component 20 and the carrier 10.

[0062] The thermally conductive silicone 40 is a material with a high thermal conductivity. The thermally conductive silicone 40 is attached between the control component 20 and the carrier 10, which can fill the gap between the control component 20 and the carrier 10 to form a better thermal conductivity effect, so that the control component 20 can better transfer heat to the carrier 10, thereby improving the heat dissipation effect of the heat dissipation structure 100.

[0063] In one embodiment, the control component 20 includes a controller 21 and a controller base plate 22. The controller base plate 22 mainly serves as the mounting and fixing of the MOS transistor aluminum substrate and the controller 21, while also taking into account heat conduction. It is generally made of aluminum alloy and is manufactured by casting aluminum, stretching aluminum profiles, or machining aluminum material.

[0064] The controller base plate 22 has a multi-slot structure, which can increase the heat dissipation area of ​​the controller base plate 22 and further improve the heat dissipation efficiency of the heat dissipation structure 100.

[0065] Please refer to the above as well. Figures 1 to 4 In one embodiment, this application also provides an electric vehicle 1000, which includes a battery 200 and the aforementioned heat dissipation structure 100, wherein the battery 200 is fixed to the vehicle frame 30.

[0066] The electric vehicle 1000 provided in this application includes a heat dissipation structure 100, which includes a support member 10, a control component 20, and a frame 30. The control component 20 is disposed on and attached to the support member 10. The frame 30 is connected to the support member 10 and is integrally interconnected with the support member 10. The support member 10 serves as a heat dissipation component, conducting and dissipating the heat generated by the control component 20. The heat generated by the control component 20 is conducted to the support member 10 and then to the frame 30. The frame 30 also serves as a heat dissipation component, conducting and dissipating the heat generated by the control component 20. This allows the heat from the control component 20 to be quickly dissipated through the frame 30, reducing the temperature of the control component 20. This prevents the control component 20 from malfunctioning or being damaged due to excessive heat, thus extending its service life.

[0067] At the same time, the structure of the frame 30 is used to increase the heat dissipation area of ​​the control component 20, and the heat dissipation of the control component 20 is optimized in the lowest cost way, which ensures the service life of the control component 20 and the electric vehicle 1000 and the continuous output of power.

[0068] The above description represents some embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

Claims

1. A heat dissipation structure, applied to an electric vehicle, characterized in that: include: bearing member; A control component, the control component is arranged on the carrier and is arranged in close contact with the carrier; A frame is connected to the bearing member, and the frame and the bearing member are interconnected as a whole.

2. The heat dissipation structure according to claim 1, characterized in that: The bearing member includes a bearing plate and a connecting portion which are bent and connected. The bearing plate is used to bear the control assembly, and the connecting portion is used to connect to the vehicle frame.

3. The heat dissipation structure according to claim 2, characterized in that: The frame includes at least one first mounting frame extending along a preset direction, wherein the preset direction is perpendicular to a horizontal plane, the connecting portion of the supporting member is connected to the first mounting frame, and the supporting plate of the supporting member is arranged along the preset direction.

4. The heat dissipation structure according to claim 3, characterized in that: The frame includes at least one second mounting frame, and the second mounting frame is bent and connected to the first mounting frame; The connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively arranged on both sides of the supporting plate, the first connecting portion is connected to the first mounting bracket, and the second connecting portion is connected to the second mounting bracket.

5. The heat dissipation structure according to claim 3, characterized in that: The bearing member further includes a ventilation plate, which is bent and connected to the bearing plate, and covers a gap between the first mounting frame and the bearing plate.

6. The heat dissipation structure according to claim 5, characterized in that: The ventilation plate is provided with a plurality of strip-shaped ventilation holes.

7. The heat dissipation structure according to claim 1, characterized in that: The heat dissipation structure further includes heat-conductive silica gel, which is arranged between the control component and the carrier and is respectively attached to the control component and the carrier.

8. The heat dissipation structure according to claim 1, characterized in that: The control component includes a controller and a controller base plate, and the controller base plate is a multi-slot structure.

9. The heat dissipation structure according to claim 1, characterized in that: The heat dissipation structure further comprises a fixing member, one end of which is connected to the control component, and the other end of which is connected to the supporting member, so as to fix the control component on the supporting member.

10. An electric vehicle, characterized in that: It comprises a battery and the heat dissipation structure according to any one of claims 1 to 9, wherein the battery is fixed on the vehicle frame.

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