Flame-proof lithium battery tab supporting seat

Abstract

The utility model discloses a flame-proof lithium battery pole lug supporting seat, which relates to the technical field of battery shells and comprises a mounting plate, the mounting plate is clamped with a lithium battery shell, a supporting cover is arranged on the mounting plate, an insulating sleeve is arranged on the supporting cover corresponding to a lithium battery pole lug and connected with an electrode column, and a lower pressing ring is arranged on the outer wall of the insulating sleeve. The supporting cover is provided with bending frames on two sides of the insulating sleeve, first springs are arranged between the bending frames and the lower pressing ring, separation cavities are arranged on two sides of the mounting plate, spring plates are slidably arranged in the separation cavities, separation plates are arranged on the spring plates, diagonal planes are arranged at the upper ends of the separation plates, second springs are arranged on the other sides of the spring plates, and hot melting blocks are arranged on the separation cavities below the separation plates. And the hot melting block penetrates through the lower part of the separation cavity and is provided with a heat-conducting plate. The lithium battery is simple in structure, convenient to install, capable of preventing the pole from being separated from the tab, capable of automatically powering off when the temperature of the lithium battery is abnormal, high in practicability and suitable for popularization.

Description

Technical Field

[0001] This utility model belongs to the field of battery casing technology, specifically relating to a flame-retardant lithium battery tab support. Background Technology

[0002] Lithium-ion batteries, as a type of energy battery with high reaction efficiency, strong safety, and small size, are increasingly widely used, especially in electric vehicles and electric boats. Batteries have positive and negative electrodes. The tabs are the metallic conductors that lead out from the battery cell to the positive and negative terminals. Simply put, the tabs of the battery's positive and negative terminals are the contact points during charging and discharging, and they are connected to the terminals, i.e., the positive and negative electrodes of the lithium-ion battery.

[0003] Existing tabs and electrodes are prone to loosening during installation, and lithium batteries, due to their inherent characteristics, are prone to overheating and spontaneous combustion in the event of a malfunction, posing a safety hazard. Utility Model Content

[0004] The purpose of this utility model is to provide a flame-retardant lithium battery tab support base. It has a simple structure, is easy to install, can prevent the terminal from detaching from the tab, and can automatically cut off the power when the lithium battery temperature is abnormal. It is highly practical and suitable for widespread application.

[0005] This utility model provides the following technical solution: a flame-retardant lithium battery tab support, including a mounting plate, the mounting plate engaging with a lithium battery casing, a support cover fixedly mounted on the mounting plate, a through hole provided on the support cover corresponding to the lithium battery tab, and an insulating sleeve provided at the through hole, the insulating sleeve being fixedly connected to an electrode post, a lower pressure ring fixedly mounted on the outer wall of the insulating sleeve, and bending frames fixedly mounted on both sides of the support cover on the insulating sleeve, with a first spring provided between the bending frames and the lower pressure ring;

[0006] Separation cavities are fixedly provided on both sides of the mounting plate. A spring plate is slidably provided in the separation cavity. A separation plate is fixedly provided on the side of the spring plate facing the insulating sleeve. The separation plate passes through the separation cavity and extends to the insulating sleeve. A beveled surface is provided at the upper end of the separation plate. A second spring is provided on the other side of the spring plate. A hot melt block is fixedly provided in the separation cavity below the separation plate. The hot melt block passes through the lower part of the separation cavity and is fixedly provided with a heat-conducting plate.

[0007] Preferably, the lower surface of the pressure ring is an elastic surface and presses against the support cover, while the electrode post on the insulating sleeve presses against the electrode tab.

[0008] Preferably, the tip of the separating plate corresponds to the junction of the electrode post and the tab, and the strength of the second spring is sufficient to insert the beveled surface between the electrode post and the tab.

[0009] Preferably, the heat-conducting plate is attached to the battery, and the hot melt block is made of high-melting-point paraffin wax, which is blocked at the spring plate.

[0010] The beneficial effects of this utility model are: simple structure, easy installation, prevention of detachment between the terminal post and the tab, and automatic power cut-off when the lithium battery temperature is abnormal. It is highly practical, as detailed below:

[0011] (1) This utility model is equipped with a support cover. When the device is manufactured, the mounting plate, support cover, bending frame and separation cavity can be integrally die-cast. When the insulating sleeve is installed, the insulating sleeve is moved from the side of the bending frame and inserted into the through hole on the support cover. The first spring is sleeved on the insulating sleeve and presses the lower pressure ring down so that the insulating sleeve maintains the downward pressure force. The electrode post on it is tightly attached to the electrode tab.

[0012] (2) This utility model is provided with a separation chamber. The spring plate inside the separation chamber is blocked by the hot melt block. The melting point of high melting point paraffin is around 90 degrees, which exceeds the normal operating temperature of lithium battery. When the temperature of lithium battery is too high, the heat-conducting plate transfers heat to the hot melt block. After the hot melt block melts, the second spring pushes the spring plate forward, causing the tip of the separation plate to be inserted into the junction of the electrode post and the electrode tab. The oblique surface on it squeezes the electrode post and the electrode tab apart, thus completing the power disconnection of the battery. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is an overall schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is an enlarged view of point A of this utility model;

[0017] The markings in the diagram are as follows: 1. Mounting plate; 2. Support cover; 3. Insulating sleeve; 4. Separation chamber; 5. Bending frame; 6. Lower pressure ring; 7. First spring; 8. Separation plate; 9. Beveled surface; 10. Spring plate; 11. Second spring; 12. Hot melt block; 13. Heat-conducting plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] See Figure 1-2 A flame-retardant lithium battery tab support includes a mounting plate 1, which engages with the lithium battery casing. A support cover 2 is fixedly mounted on the mounting plate 1. The support cover 2 has a through hole corresponding to the lithium battery tab, and an insulating sleeve 3 is provided at the through hole. The insulating sleeve 3 is fixedly connected to the electrode post. A lower pressure ring 6 is fixedly mounted on the outer wall of the insulating sleeve 3. A bending frame 5 is fixedly mounted on both sides of the support cover 2. A first spring 7 is provided between the bending frame 5 and the lower pressure ring 6. The first spring 7 presses the lower pressure ring 6 downward. The lower surface of the lower pressure ring 6 is an elastic surface and presses against the support cover 2. The electrode post on the insulating sleeve 3 is pressed against the tab. The downward pressure of the first spring 7 makes the electrode post tightly adhere to the tab.

[0023] See Figure 2-3Separation chambers 4 are fixedly provided on both sides of the mounting plate 1. A spring plate 10 is slidably provided in the separation chamber 4. A separation plate 8 is fixedly provided on the side of the spring plate 10 facing the insulating sleeve 3. The separation plate 8 passes through the separation chamber 4 and extends to the insulating sleeve 3. The upper end of the separation plate 8 is provided with a beveled surface 9. The tip of the separation plate 8 corresponds to the junction of the electrode post and the electrode tab. The separation plate 8 pushes the electrode post and the electrode tab apart. A second spring 11 is provided on the other side of the spring plate 10. The second spring 11 pushes the spring plate 10 on the mounting plate 1. The second spring 11 slides, and the strength of the second spring 11 is sufficient to insert the beveled surface 9 between the electrode post and the electrode tab. The separation chamber 4 is located below the separation plate 8 and a hot melt block 12 is fixedly provided. The hot melt block 12 passes through the lower part of the separation chamber 4 and a heat-conducting plate 13 is fixedly provided. The heat-conducting plate 13 is in contact with the battery and transfers the temperature of the battery to the hot melt block 12. The hot melt block 12 is made of high melting point paraffin wax. The hot melt block 12 blocks the spring plate 10. After the hot melt block 12 melts, the second spring 11 pushes the spring plate 10 forward.

[0024] This utility model provides a flame-retardant lithium battery tab support base with a simple structure, which is easy to install. It can prevent the terminal from detaching from the tab and can automatically cut off the power when the lithium battery temperature is abnormal. It is highly practical and suitable for widespread application.

[0025] For specific usage, please refer to... Figure 1-3 During the production of the device, the mounting plate 1, support cover 2, bending frame 5, and separation chamber 4 can be integrally die-cast. When installing the insulating sleeve 3, the insulating sleeve 3 is moved from the side of the bending frame 5 and inserted into the through hole on the support cover 2. The first spring 7 is sleeved on the insulating sleeve 3, which presses the lower pressure ring 6 downward, so that the insulating sleeve 3 maintains the downward pressure force. The electrode post on it is tightly attached to the electrode tab. The spring plate 10 inside the separation chamber 4 is blocked by the hot melt block 12. The melting point of the high melting point paraffin is about 90 degrees, which exceeds the normal operating temperature of the lithium battery. When the temperature of the lithium battery is too high, the heat conduction plate 13 transfers heat to the hot melt block 12. After the hot melt block 12 melts, the second spring 11 pushes the spring plate 10 forward, causing the tip of the separation plate 8 to be inserted into the junction of the electrode post and the electrode tab. The beveled surface 9 on it squeezes the electrode post and the electrode tab apart, completing the power disconnection of the battery.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flame-retardant lithium battery tab support, comprising a mounting plate (1), wherein the mounting plate (1) engages with a lithium battery casing, and a support cover (2) is fixedly provided on the mounting plate (1), characterized in that, The support cover (2) has a through hole corresponding to the lithium battery tab, and an insulating sleeve (3) is provided at the through hole. The insulating sleeve (3) is fixedly connected to the electrode post. A pressure ring (6) is fixedly provided on the outer wall of the insulating sleeve (3). A bending frame (5) is fixedly provided on both sides of the support cover (2) and a first spring (7) is provided between the bending frame (5) and the pressure ring (6). Separation chambers (4) are fixedly provided on both sides of the mounting plate (1). A spring plate (10) is slidably provided in the separation chamber (4). A separation plate (8) is fixedly provided on the side of the spring plate (10) facing the insulating sleeve (3). The separation plate (8) passes through the separation chamber (4) and extends to the insulating sleeve (3). A chamfered surface (9) is provided at the upper end of the separation plate (8). A second spring (11) is provided on the other side of the spring plate (10). A hot melt block (12) is fixedly provided in the separation chamber (4) below the separation plate (8). The hot melt block (12) passes through the lower part of the separation chamber (4) and is fixedly provided with a heat-conducting plate (13).

2. The flame-retardant lithium battery tab support according to claim 1, characterized in that, The lower surface of the pressure ring (6) is an elastic surface and presses on the support cover (2), while the electrode post on the insulating sleeve (3) presses on the electrode tab.

3. The flame-retardant lithium battery tab support according to claim 1, characterized in that, The tip of the separation plate (8) corresponds to the junction of the electrode post and the tab, and the strength of the second spring (11) is sufficient to insert the beveled surface (9) between the electrode post and the tab.

4. The flame-retardant lithium battery tab support according to claim 1, characterized in that, The heat-conducting plate (13) is attached to the battery, and the hot melt block (12) is made of high melting point paraffin wax. The hot melt block (12) is blocked at the spring plate (10).

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