Heat dissipation device for storage battery of electric bicycle

Abstract

The utility model relates to the technical field of storage batteries, and discloses an electric bicycle storage battery heat dissipation device which comprises a shell installed on an electric bicycle, and a battery pack is installed in the shell. The heat dissipation assembly comprises a heat conduction piece and a heat dissipation piece, the heat conduction piece is arranged in the shell and makes contact with the battery pack, and the heat dissipation piece is arranged on the heat conduction piece and used for conducting heat dissipation on the heat conduction piece; a heat dissipation opening is formed in the shell, and the dustproof piece is arranged on the heat dissipation opening and used for filtering external dust. Through the simple and efficient heat dissipation device, the stability of the storage battery of the electric bicycle is improved, the service life of the storage battery of the electric bicycle is prolonged, a more reliable, efficient and economical solution is provided for heat management of the storage battery of the electric bicycle, the performance and safety of the battery are improved, the maintenance cost of a user can be reduced, and the user experience is improved.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a heat dissipation device for electric bicycle batteries. Background Technology

[0002] With the rapid development of the electric vehicle market, consumers' demands for vehicle performance are increasing, directly driving the need for higher standards in battery technology. As one of the core components of an electric vehicle, the battery's performance directly affects the overall vehicle performance. However, in practical applications, especially during high-power discharge operations, the battery releases a significant amount of heat. Without effective heat dissipation measures, this excess heat can cause a sharp rise in battery temperature, not only reducing battery efficiency and lifespan but also potentially triggering a series of safety hazards, such as thermal runaway events, and in severe cases, even fire or explosion.

[0003] Current electric bicycle batteries still have the following drawbacks:

[0004] 1. Low efficiency of natural heat dissipation: Natural convection cooling relies on natural airflow, which has relatively low efficiency, especially when the vehicle is stationary or moving at low speeds. In these conditions, the airflow is slow and cannot effectively remove the heat generated by the battery. When the battery operates under high load conditions, it generates a large amount of heat. Natural heat dissipation often cannot meet the demand for rapid heat dissipation, causing the battery temperature to rise continuously, thus affecting battery performance and lifespan, and potentially even causing safety issues.

[0005] 2. Heat dissipation vents allow dust to enter the battery: While the design of heat dissipation vents helps dissipate heat, it also provides a channel for external dust to enter the battery. If the dust contains conductive materials, such as metal powder or salt crystals, conductive bridges can easily form in a humid environment, leading to a short circuit. Some components in the dust (such as salts) may undergo chemical reactions in a humid environment, corroding the battery casing or internal connectors, reducing the battery's lifespan and reliability.

[0006] Therefore, there is an urgent need for a heat dissipation device for electric bicycle batteries to solve the above problems. Utility Model Content

[0007] The purpose of this invention is to provide a heat dissipation device for electric bicycle batteries to solve the problems existing in the prior art.

[0008] To achieve the above objectives, this utility model provides the following solution: This utility model provides a heat dissipation device for an electric bicycle battery, comprising:

[0009] A housing is installed on an electric bicycle, and the battery pack is installed inside the housing.

[0010] A heat dissipation assembly includes a heat-conducting component and a heat dissipation component. The heat-conducting component is disposed inside the housing and in contact with the battery pack. The heat dissipation component is disposed on the heat-conducting component for dissipating heat from the heat-conducting component.

[0011] A dustproof component is provided on the outer casing, and the dustproof component is disposed on the heat dissipation vent to filter external dust.

[0012] This utility model provides a heat dissipation device for an electric bicycle battery. The heat-conducting component includes a heat sink fixedly connected inside the housing, and the heat sink is disposed in contact with the battery pack.

[0013] This utility model provides a heat dissipation device for an electric bicycle battery, wherein the heat dissipation component includes a cooling fan installed inside the housing, and the cooling fan is located above the heat sink.

[0014] This utility model provides a heat dissipation device for an electric bicycle battery, wherein the dustproof component includes a dustproof filter screen fixedly connected to the heat dissipation port.

[0015] This utility model provides a heat dissipation device for electric bicycle batteries, wherein a handle is installed on the top of the outer casing.

[0016] This utility model provides a heat dissipation device for an electric bicycle battery. The battery pack is installed in the housing via an upper bracket and a lower bracket, and the heat sink is fixedly connected between the upper bracket and the lower bracket.

[0017] This utility model provides a heat dissipation device for electric bicycle batteries, wherein the outer casing is provided with a charging port and a discharging port.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] This utility model provides a heat dissipation device for an electric bicycle battery. The heat-conducting component dissipates heat from the battery pack when its temperature is too high, ensuring the stability and safety of the battery pack. A rectangular heat dissipation vent is formed on the top of the outer casing, with multiple ventilation holes arranged in a matrix in the center. These holes connect the inside and outside of the casing, allowing heat exchange between the air inside and outside the casing, dissipating the heat generated by the battery pack and lowering its temperature. A dustproof component is tightly fitted below the heat dissipation vent, completely covering it to prevent dust from entering the battery. This effectively blocks conductive substances in the dust, preventing the formation of conductive bridges in humid environments that could lead to short circuits in the battery pack. It also prevents substances in the dust from undergoing chemical reactions in humid environments, thus preventing corrosion of the battery casing or internal components. The heat dissipation component blows air to cool the battery pack, and the forced convection quickly removes the heat generated by chemical reactions in the battery. Simultaneously, it accelerates airflow, making the temperature of various parts inside the battery more uniform and preventing localized overheating. This invention improves the stability and lifespan of electric bicycle batteries through a simple and efficient heat dissipation device, providing a more reliable, efficient, and economical solution for the thermal management of electric bicycle batteries. It helps improve battery performance and safety, reduces user maintenance costs, and enhances the user experience. Attached Figure Description

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

[0021] Figure 1 This is a top view of the present invention;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention;

[0023] Figure 3 This is a schematic diagram of the internal structure of the outer shell of this utility model;

[0024] Figure 4 This is a schematic diagram of the upper and lower support structures of this utility model;

[0025] Figure 5 This is a schematic diagram of the opening position in Embodiment 2 of this utility model;

[0026] Figure 6 This is a schematic diagram showing the position of the rubber sealing strip in Embodiment 2 of this utility model;

[0027] The components include: 1. Outer shell; 2. Battery pack; 3. Heat sink; 4. Cooling fan; 5. Dust filter; 6. Handle; 7. Upper bracket; 8. Lower bracket; 9. Charging port; 10. Discharging port; 11. Opening; and 12. Rubber sealing strip. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1:

[0031] Reference Figures 1-4 This utility model provides a heat dissipation device for electric bicycle batteries, comprising:

[0032] The outer casing 1 is installed on the electric bicycle, and the battery pack 2 is installed inside the outer casing 1.

[0033] The heat dissipation component includes a heat-conducting component and a heat dissipation component. The heat-conducting component is disposed inside the housing 1 and is in contact with the battery pack 2. The heat dissipation component is disposed on the heat-conducting component for dissipating heat from the heat-conducting component.

[0034] The dustproof component has a heat dissipation vent on the outer casing 1, and the dustproof component is installed on the heat dissipation vent to filter external dust.

[0035] In one embodiment of this utility model, a heat-conducting component is used to dissipate heat from the battery pack 2 when its temperature is too high, ensuring the stability and safety of the battery pack 2. A heat dissipation vent is formed on the top of the outer casing 1 through perforations. The vent is rectangular, with multiple heat dissipation holes arranged in a matrix in the center. These holes connect the inside and outside of the outer casing 1, allowing heat exchange between the air inside and outside the casing, dissipating the heat generated by the battery pack 2 and reducing its temperature. A dustproof component is tightly fitted below the heat dissipation vent, completely covering it to prevent dust from entering the battery through the vent. This effectively blocks conductive substances in the dust, preventing the formation of conductive bridges in humid environments that could lead to short circuits in the battery pack. It also prevents substances in the dust from undergoing chemical reactions in humid environments, thus preventing corrosion of the battery casing or internal components. The heat dissipation component cools the battery pack by blowing air through it, and the forced convection quickly removes the heat generated by the chemical reaction, while also accelerating airflow to make the temperature of various parts inside the battery more uniform, preventing localized overheating.

[0036] As an optional implementation, the heat-conducting component includes a heat sink 3 fixedly connected inside the housing 1, and the heat sink 3 is disposed in contact with the battery pack 2.

[0037] In one embodiment of this utility model, a heat sink 3 is provided around the battery pack 2. The heat sink 3 is in close contact with the surface of the battery pack 2, which effectively improves the heat dissipation efficiency of the battery pack 2 and ensures that the temperature of the battery pack 2 is effectively controlled when it is working under high load.

[0038] As an optional implementation, the heat sink includes a cooling fan 4 installed inside the housing 1, with the cooling fan 4 located above the heat sink 3.

[0039] In one embodiment of this utility model, the cooling fan 4 is disposed above the battery pack 2. It cools the battery by blowing air, accelerates the heat dissipation, improves the heat dissipation efficiency, and at the same time speeds up the air flow, making the temperature of each part inside the battery more uniform and avoiding the occurrence of local overheating.

[0040] As an optional implementation, the dustproof component includes a dust filter 5 fixedly connected to the heat dissipation vent.

[0041] In one embodiment of this utility model, the dust filter 5 is connected to the air outlet of the outer casing, effectively preventing dust and grit from entering the battery and ensuring the cleanliness and safety of the battery pack.

[0042] As an alternative implementation, a handle 6 is installed at the top of the outer casing 1.

[0043] In one embodiment of this utility model, the handle 6 facilitates lifting the entire battery.

[0044] As an optional implementation, the battery pack 2 is installed inside the housing 1 via the upper bracket 7 and the lower bracket 8, and the heat sink 3 is fixedly connected between the upper bracket 7 and the lower bracket 8.

[0045] In one embodiment of this utility model, the battery pack 2 is fixed by the upper bracket 7 and the lower bracket 8 to ensure the stable installation of the battery pack 2.

[0046] Specifically, the upper bracket 7 and the lower bracket 8 are used to fix the battery cells. There are gaps between the battery cells to facilitate air circulation and improve heat dissipation efficiency. The heat sink 3 is fixed between the upper bracket 7 and the lower bracket 8, and its side is close to the perimeter of the battery pack 2. When the battery pack 2 gets very hot, the heat sink 3 transfers the heat of the battery pack 2 to the outside of the battery pack 2, further improving the heat dissipation effect.

[0047] As an optional implementation, the housing 1 is provided with a charging port 9 and a discharging port 10.

[0048] In one embodiment of this utility model, the battery pack 2 is charged and used through the charging port 9 and the discharging port 10, respectively.

[0049] Example 2:

[0050] Reference Figures 5-6 The back of the outer casing 1 has an opening 11 for installing and removing the dust filter 5, making it easier to clean and replace the dust filter, reducing dust accumulation on the filter and preventing poor heat dissipation due to dust blockage. It also effectively prevents dust from falling into the battery and causing a short circuit.

[0051] Specifically, a rubber sealing strip 12 is also provided at the opening 11 to effectively block the intrusion of external moisture and ensure the safety and reliability of the equipment in humid environments. The rubber sealing strip 12 has good elasticity and weather resistance, and can maintain its sealing performance under various weather conditions, while not affecting the ease of removing the dust filter 5.

[0052] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0053] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A heat dissipation device for an electric bicycle battery, characterized in that, include: A housing (1) is installed on an electric bicycle, and a battery pack (2) is installed inside the housing (1); The heat dissipation component includes a heat-conducting component and a heat dissipation component. The heat-conducting component is disposed inside the housing (1) and in contact with the battery pack (2). The heat dissipation component is disposed on the heat-conducting component for dissipating heat from the heat-conducting component. The dustproof component is provided on the outer shell (1) with a heat dissipation vent, and the dustproof component is provided on the heat dissipation vent to filter external dust.

2. The electric bicycle battery cooling device according to claim 1, characterized in that: The heat-conducting component includes a heat sink (3) fixedly connected inside the housing (1), and the heat sink (3) is disposed in contact with the battery pack (2).

3. The electric bicycle battery cooling device according to claim 2, characterized in that: The heat sink includes a cooling fan (4) installed inside the housing (1), and the cooling fan (4) is located above the heat sink (3).

4. The electric bicycle battery cooling device according to claim 1, characterized in that: The dustproof component includes a dustproof filter (5) fixedly connected to the heat dissipation port.

5. The electric bicycle battery cooling device according to claim 1, characterized in that: A handle (6) is installed at the top of the outer casing (1).

6. The electric bicycle battery cooling device according to claim 2, characterized in that: The battery pack (2) is installed inside the housing (1) via an upper bracket (7) and a lower bracket (8), and the heat sink (3) is fixedly connected between the upper bracket (7) and the lower bracket (8).

7. The electric bicycle battery cooling device according to claim 1, characterized in that: The outer casing (1) is provided with a charging port (9) and a discharging port (10).

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