Multi-contact connecting type new energy battery pole

Abstract

The application discloses a multi-contact connecting type new energy battery pole, and relates to the technical field of new energy battery poles, which comprises a battery cover plate, two groups of placing grooves are formed in the upper surface of the battery cover plate, and two groups of battery pole bodies are respectively placed in the placing grooves; and a limiting mechanism is arranged between the outer side of the battery pole body and the battery cover plate. The multi-contact connecting type new energy battery pole is provided with a deformation elastic plate and a plurality of contact bodies; when a wiring terminal is pressed and combined on the battery pole body, the arching part of the deformation elastic plate is extruded, the deformation elastic plate is deformed downward, the contact body at the arching position is driven to move downward synchronously, the contact bodies on the deformation elastic plates at different positions are matched, multi-point contact with the inner side of the wiring terminal is completed synchronously, a multi-contact conductive structure is constructed, the conductive contact area is effectively increased, the overall contact resistance is reduced, the heat loss in the conductive process is reduced, and the conductive efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of new energy battery terminal technology, specifically a multi-contact connection type new energy battery terminal. Background Technology

[0002] New energy batteries are widely used in new energy power generation and new energy vehicles. The positive and negative electrodes of new energy batteries need to be connected to the outside for conductivity through terminals. The connection stability and conductivity efficiency of the terminals directly affect the overall performance of the new energy battery.

[0003] Prior art 1 (Chinese patent with announcement number CN219476946U and announcement date of 2023-08-04) discloses a battery terminal and a battery, including a terminal body. The terminal body has a through-hole in the thickness direction. The through-hole has a first anti-drop structure to prevent the seal of the through-hole from falling off. The first anti-drop structure is located near the outlet end of the through-hole. By setting the through-hole on the terminal body, which is thicker than the top cover, and setting the first anti-drop structure, the battery terminal and battery can ensure high energy density, good sealing performance, and reliability and safety of the battery.

[0004] There is also prior art 2 (Chinese patent CN109638214B, published on 2025-02-21), which describes a connection structure between battery terminals and a busbar, and a battery module, belonging to the field of battery technology. The connection structure includes battery terminals, a busbar, and a conductive element. The busbar is welded to the battery terminals to form a welded joint, and the busbar and battery terminals are electrically connected through the welded joint. The conductive element is located between the battery terminals and the busbar, so that the busbar and battery terminals are electrically connected through the conductive element. Since the busbar and battery terminals are electrically connected both through the welded joint and the conductive element, the current-carrying area between the battery terminals and the busbar includes not only the welded joint but also the area with the conductive element, significantly increasing the current-carrying area and the current-carrying capacity between the battery terminals and the busbar.

[0005] Existing new energy battery terminals on the market still have certain defects in use. For example, most of them are single-contact conductive structures. After the external terminals are connected to the terminals, the contact area is limited, which can easily lead to high contact resistance, resulting in increased heat generation during conduction and increased energy consumption. At the same time, most existing terminals are directly fixed to the battery cover, relying solely on the terminal's own structure or a single welding for fixation. After long-term use, the terminals are prone to loosening and shifting due to external pulling and vibration, which can lead to decreased connection stability and even cause safety issues such as poor contact and increased localized overheating.

[0006] Therefore, we propose a multi-contact connection type of new energy battery terminal to solve the problems mentioned above. Summary of the Invention

[0007] The purpose of this invention is to provide a multi-contact connection type new energy battery terminal to solve the problems mentioned in the background art. Most of the current market batteries have single-contact conductive structures. After the external terminals are connected to the terminal, the contact area is limited, which easily leads to high contact resistance, resulting in increased heat generation during conduction and increased energy consumption. At the same time, most existing terminals are directly fixed to the battery cover plate, relying solely on the terminal's own structure or a single welding for fixation. After long-term use, the terminal is prone to loosening and displacement due to external pulling and vibration, resulting in decreased connection stability.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a multi-contact connection type new energy battery terminal, including a battery cover plate, the upper surface of the battery cover plate having two sets of placement slots, and positive and negative sets of battery terminal bodies being placed inside the placement slots respectively, a limiting mechanism being provided between the outer side of the battery terminal body and the battery cover plate, the limiting mechanism contacting the battery terminal body with the installation setting to further limit and fix the installation of the battery terminal body.

[0009] Preferably, a locking plate is fixedly connected to the upper surface of the battery cover, and the locking plates are arranged in a circular array about the center point of the placement groove. The locking plates are in contact with the outer side of the battery terminal body, and the locking plates initially limit the battery terminal body.

[0010] Preferably, a deformation elastic plate is fixedly connected to the upper surface of the battery terminal body, and the deformation elastic plate is arranged in a ring array about the center point of the battery terminal body, and the middle part of the deformation elastic plate is arranged in an upward arched structure, while the two sides of the arched deformation elastic plate are arranged in an inclined structure.

[0011] Preferably, the upper surface of the deformation spring plate is provided with contact bodies. When the external wiring terminal is pressed onto the battery terminal body, the contact bodies on multiple deformation spring plates simultaneously contact the inner side of the wiring terminal to form a multi-contact connection structure, thereby increasing the conductive contact area and reducing the contact resistance.

[0012] Preferably, the limiting mechanism includes an upper auxiliary groove, which is formed on the upper surface of the battery terminal body and is arranged in a ring structure. The upper auxiliary groove is located directly below the upward arched part of the deformation elastic plate.

[0013] Preferably, a gas storage soft cavity is fixedly connected inside the upper auxiliary groove, and the upper end of the gas storage soft cavity is connected to the lower surface of the upward arched part of the deformation elastic plate, and the lower end of the gas storage soft cavity is connected to a connecting pipe, which is also installed inside the battery terminal body.

[0014] Preferably, a side auxiliary groove is provided on the side of the battery terminal body, and a deformation airbag is fixedly connected inside the side auxiliary groove. The deformation airbag is connected to the connecting pipe. An abutment plate is fixedly connected to the outside of the deformation airbag, and the outside of the abutment plate is arranged in an arc shape. At the same time, the outside of the abutment plate abuts against the inside of the locking plate.

[0015] Preferably, the limiting mechanism includes an auxiliary pressure plate, which is fixedly connected to the left and right sides of the locking plate. The auxiliary pressure plate is made of an elastic and deformable material and is arranged in an inverted "L" shape. The auxiliary pressure plate limits the position of the battery terminal body above.

[0016] Preferably, an upper contact point is fixedly connected to the upper and lower surfaces of the auxiliary pressure plate, and a lower contact point is fixedly connected to the upper surface of the battery terminal body. In the initial installation state, the lower contact point is located outside the upper contact point, and the lower contact point and the upper contact point are not in direct contact. When the contact plate moves outward, the upper contact point moves outward with the deformation of the auxiliary pressure plate and comes into contact with the lower contact point, further pressing the battery terminal body together.

[0017] Compared with the prior art, the beneficial effects of the present invention are: The system includes a locking plate and an auxiliary pressure plate. The locking plate initially limits the outer side of the battery terminal body, while the auxiliary pressure plate with an inverted "L" shape pre-limits the upper part of the battery terminal body, completing the initial positioning before installation and preventing the battery terminal body from shifting or misaligning during installation. At the same time, the auxiliary pressure plate is made of an elastic and deformable material, which can cooperate with subsequent contact actions to complete further pressing and fixing.

[0018] The device is equipped with a deformation spring plate and multiple sets of contact bodies. When the terminal block is pressed onto the battery terminal block, it will squeeze the arched part of the deformation spring plate, causing the deformation spring plate to deform downward. This causes the contact bodies at the arched position to move downward synchronously. In conjunction with the contact bodies on the deformation spring plate at different positions, multiple points of contact can be made with the inside of the terminal block simultaneously, forming a multi-contact conductive structure. This effectively increases the conductive contact area, reduces the overall contact resistance, reduces heat loss during the conduction process, and improves the conductivity efficiency.

[0019] The system includes a gas storage cavity, a connecting pipe, a deformation airbag, and a contact plate. When the deformation plate is compressed and deforms downwards, it simultaneously squeezes the gas storage cavity, transporting the gas inside the cavity to the deformation airbag through the connecting pipe. This causes the deformation airbag to inflate and expand, pulling the contact plate outwards. The outer side of the contact plate then tightly contacts the inner side of the locking plate, further filling the gap between the battery terminal body and the locking plate, preventing the battery terminal body from loosening laterally.

[0020] During the outward expansion of the contact plate, the locking plate is squeezed outward, causing the auxiliary pressure plate connected to the outer side of the locking plate to deform outward. This allows the upper contact point on the lower side of the auxiliary pressure plate to move above the lower contact point and complete the contact. Through the cooperation of the upper and lower contact points, the upper part of the battery terminal body is further pressed and limited. After the terminal is pressed, the battery terminal body is reinforced again, effectively preventing the battery terminal body from loosening or shifting due to vibration and pulling after long-term use, thus improving the overall connection stability. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention in its installed state; Figure 2 This is a schematic diagram of the structure of the present invention in its uninstalled state; Figure 3 This is a schematic diagram of the three-dimensional structure of the snap-fit ​​plate of the present invention; Figure 4 This is a three-dimensional structural diagram of the battery terminal body of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the side auxiliary groove of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A in the middle; Figure 7 This is a three-dimensional cross-sectional view of the auxiliary groove structure of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the deformable airbag of the present invention; Figure 9 For the present invention Figure 8 Enlarged structural diagram at point B.

[0022] In the diagram: 1. Battery cover; 2. Battery terminal body; 3. Placement slot; 4. Locking plate; 5. Auxiliary pressure plate; 6. Upper contact point; 7. Lower contact point; 8. Side auxiliary slot; 9. Upper auxiliary slot; 10. Deformation spring plate; 11. Connecting pipe; 12. Gas storage soft cavity; 13. Deformation airbag; 14. Contact plate; 15. Contact body. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Example 1: To further ensure the stability of the battery terminal body 2 after installation, a locking plate 4 and an auxiliary pressure plate 5 are provided, such as... Figure 1 - Figure 3 The present invention provides the following technical solution: a multi-contact connection type new energy battery terminal, wherein the upper surface of the battery cover plate 1 is provided with two sets of placement grooves 3, and positive and negative sets of battery terminal bodies 2 are respectively placed inside the placement grooves 3. A locking plate 4 is fixedly connected to the upper surface of the battery cover plate 1, and the locking plate 4 is arranged in a ring array about the center point of the placement groove 3. The locking plate 4 is in contact with the outer side of the battery terminal body 2, and the locking plate 4 provides initial positioning of the battery terminal body 2. It also includes an auxiliary pressure plate 5, which is fixedly connected to the left and right sides of the locking plate 4. The auxiliary pressure plate 5 is made of elastic and deformable material and is arranged in an inverted "L" shape. The auxiliary pressure plate 5 provides upper positioning of the battery terminal body 2.

[0025] The battery terminal body 2 is provided with a placement groove 3, which can lock and limit the lower end of the battery terminal body 2 inside the placement groove 3. With the help of the ring-shaped locking plates 4, the outer side of the battery terminal body 2 is initially positioned. With the help of the inverted L-shaped auxiliary pressure plate 5, the upper part of the battery terminal body 2 is pre-pressed and limited, completing the initial fixation of the battery terminal body 2 before installation. This avoids misalignment and displacement of the battery terminal body 2 during the installation and docking process, and facilitates the subsequent pressing and installation of the wiring terminals. The locking plates 4 and auxiliary pressure plates 5 work together to limit the three sides of the battery terminal body 2, effectively improving the positioning accuracy of the initial installation and reducing the installation difficulty.

[0026] Example 2: To further ensure the conductivity stability of the multi-contact conductive structure, an additional spare conductive contact body 15 is added, such as... Figure 4 - Figure 6 The present invention provides the following technical solution: a multi-contact connection type new energy battery terminal, wherein a deformable elastic plate 10 is fixedly connected to the upper surface of the battery terminal body 2, and the deformable elastic plate 10 is arranged in a ring array about the center point of the battery terminal body 2, and the middle part of the deformable elastic plate 10 is arranged in an upward arched structure, while the two sides of the arch of the deformable elastic plate 10 are arranged in an inclined structure. The upper surface of the deformable elastic plate 10 is provided with contact body 15. When the external wiring terminal is pressed on the battery terminal body 2, the contact body 15 on multiple deformable elastic plates 10 simultaneously contacts the inner side of the wiring terminal to form a multi-contact connection structure, thereby increasing the conductive contact area and reducing the contact resistance.

[0027] When the external terminal is pressed and fixed above the battery terminal body 2, the terminal will simultaneously press down on the arched parts of multiple deformation spring plates 10. After being pressed, the deformation spring plates 10 deform and the arch height decreases, causing the contact bodies 15 on the multiple deformation spring plates 10 to simultaneously come into contact with the inner surface of the terminal. The multiple independent contact bodies 15 together form a multi-contact connection structure, which directly increases the conductive contact area between the battery terminal body 2 and the terminal, thereby reducing the overall contact resistance, reducing heat loss during the conduction process, and improving the conductivity efficiency.

[0028] Example 3: Based on Example 1, while the conductive connection is completed by crimping the terminals, a secondary reinforcement of the battery terminal body 2 is simultaneously completed. This achieves both the wiring connection and the reinforcement of the battery terminal body 2, effectively preventing lateral displacement or longitudinal loosening of the battery terminal body 2 due to external pulling or vibration during prolonged use. This improves the overall installation stability and safety of the terminal body. Figure 6 - Figure 9 The technical solution shown in the invention provides the following technical solution: a multi-contact connection type new energy battery terminal, wherein a limiting mechanism is provided between the outer side of the battery terminal body 2 and the battery cover plate 1, the limiting mechanism contacts the battery terminal body 2 and the installation setting to further limit and fix the installation of the battery terminal body 2, the limiting mechanism includes an upper auxiliary groove 9, the upper auxiliary groove 9 is opened on the upper surface of the battery terminal body 2, and the upper auxiliary groove 9 is arranged in a ring structure, and the upper auxiliary groove 9 is located directly below the upward arched part of the deformation elastic plate 10, and a gas storage soft cavity is fixedly connected inside the upper auxiliary groove 9. 12, and the upper end of the gas storage soft cavity 12 is connected to the lower surface of the upward arched part of the deformation elastic plate 10, and the lower end of the gas storage soft cavity 12 is connected to the connecting pipe 11. At the same time, the connecting pipe 11 is installed inside the battery terminal body 2. The side of the battery terminal body 2 is provided with a side auxiliary groove 8, and the inside of the side auxiliary groove 8 is fixedly connected to the deformation airbag 13. The deformation airbag 13 is connected to the connecting pipe 11. The outer side of the deformation airbag 13 is fixedly connected to the abutment plate 14, and the outer side of the abutment plate 14 is set with an arc structure. At the same time, the outer side of the abutment plate 14 abuts against the inner side of the locking plate 4.

[0029] An upper contact point 6 is fixedly connected to the lower surface of the upper end of the auxiliary pressure plate 5, and a lower contact point 7 is fixedly connected to the upper surface of the battery terminal body 2. In the initial installation state, the lower contact point 7 is located outside the upper contact point 6, and the lower contact point 7 and the upper contact point 6 do not directly contact each other. When the contact plate 14 moves outward, the upper contact point 6 moves outward with the deformation of the auxiliary pressure plate 5 and comes into contact with the lower contact point 7.

[0030] When the deformation plate 10 is compressed and deforms downward, it will simultaneously squeeze the gas storage soft cavity 12 below. After being compressed, the gas storage soft cavity 12 will transport the gas stored inside to the deformation airbag 13 in the side auxiliary groove 8 through the connecting pipe 11. After the deformation airbag 13 is inflated, it expands and drives the outer contact plate 14 to extend outward, so that the outer side of the contact plate 14 tightly abuts against the inner surface of the locking plate 4, automatically filling the installation gap between the battery terminal body 2 and the locking plate 4, restricting the lateral displacement of the battery terminal body 2, and preventing the battery terminal body 2 from becoming laterally loose during use.

[0031] An upper contact point 6 is fixedly connected to the lower surface of the upper end of the auxiliary pressure plate 5, and a lower contact point 7 is fixedly connected to the upper surface of the battery terminal body 2. In the initial installation state, the lower contact point 7 is located outside the upper contact point 6, and the lower contact point 7 and the upper contact point 6 are not in direct contact. When the contact plate 14 moves outward and squeezes the locking plate 4, it will push the locking plate 4 to open slightly outward, so that the auxiliary pressure plates 5 connected to both sides of the upper end of the locking plate 4 will elastically deform outward in sync, driving the upper contact point 6 to move outward in sync. Finally, the upper contact point 6 moves to the upper part of the lower contact point 7 and abuts and fits against the lower contact point 7. Through the cooperation of the upper contact point 6 and the lower contact point 7, a downward pressing force is further applied to the upper part of the battery terminal body 2, completing the secondary vertical reinforcement of the battery terminal body 2. With the lateral limiting of the outer contact plate 14, the bidirectional fixation of the battery terminal body 2 is realized, effectively preventing the battery terminal body 2 from loosening and shifting due to external pulling and vibration after long-term use, and improving the overall connection stability and safety of use.

[0032] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A multi-contact connection type new energy battery terminal block, comprising a battery cover plate (1), wherein the upper surface of the battery cover plate (1) is provided with two sets of placement grooves (3), and positive and negative sets of battery terminal block bodies (2) are respectively placed inside the placement grooves (3), characterized in that, A limiting mechanism is provided between the outer side of the battery terminal body (2) and the battery cover plate (1). The limiting mechanism contacts the installation device through the battery terminal body (2) to further limit and fix the installation of the battery terminal body (2).

2. The multi-contact connection type new energy battery terminal according to claim 1, characterized in that: The upper surface of the battery cover (1) is fixedly connected with a locking plate (4), and the locking plates (4) are arranged in a ring array about the center point of the placement groove (3). The locking plates (4) are in contact with the outside of the battery terminal body (2) and the locking plates (4) initially limit the battery terminal body (2).

3. The multi-contact connection type new energy battery terminal according to claim 1, characterized in that: The upper surface of the battery terminal body (2) is fixedly connected to a deformation elastic plate (10), and the deformation elastic plate (10) is arranged in a ring array about the center point of the battery terminal body (2). The middle part of the deformation elastic plate (10) is arranged in an upward arched structure, and the two sides of the arch of the deformation elastic plate (10) are arranged in an inclined structure.

4. The multi-contact connection type new energy battery terminal according to claim 3, characterized in that: The upper surface of the deformation spring plate (10) is provided with contact body (15). When the external wiring terminal is pressed on the battery terminal body (2), the contact body (15) on multiple deformation spring plates (10) simultaneously contacts the inner side of the wiring terminal to form a multi-contact connection structure, thereby increasing the conductive contact area and reducing the contact resistance.

5. A multi-contact connection type new energy battery terminal according to claim 4, characterized in that: The limiting mechanism includes an upper auxiliary groove (9), which is opened on the upper surface of the battery terminal body (2). The upper auxiliary groove (9) is arranged in a ring structure and is located directly below the upward arched part of the deformation elastic plate (10).

6. A multi-contact connection type new energy battery terminal according to claim 5, characterized in that: The upper auxiliary groove (9) is fixedly connected to a gas storage soft cavity (12), and the upper end of the gas storage soft cavity (12) is connected to the lower surface of the upward arched part of the deformation elastic plate (10), and the lower end of the gas storage soft cavity (12) is connected to a connecting pipe (11), and the connecting pipe (11) is installed inside the battery terminal body (2).

7. A multi-contact connection type new energy battery terminal according to claim 6, characterized in that: The side of the battery terminal body (2) is provided with a side auxiliary groove (8), and a deformation airbag (13) is fixedly connected inside the side auxiliary groove (8). The deformation airbag (13) is connected to the connecting pipe (11). A contact plate (14) is fixedly connected to the outside of the deformation airbag (13), and the outside of the contact plate (14) is set in an arc shape. At the same time, the outside of the contact plate (14) abuts against the inside of the locking plate (4).

8. A multi-contact connection type new energy battery terminal according to claim 7, characterized in that: The limiting mechanism includes an auxiliary pressure plate (5), which is fixedly connected to the left and right sides of the locking plate (4). The auxiliary pressure plate (5) is made of an elastic and deformable material and is arranged in an inverted "L" shape. The auxiliary pressure plate (5) limits the upper part of the battery terminal body (2).

9. A multi-contact connection type new energy battery terminal according to claim 8, characterized in that: The upper end of the auxiliary pressure plate (5) is fixedly connected to the lower surface of the upper end of the upper contact point (6), and the upper surface of the battery terminal body (2) is fixedly connected to the lower contact point (7). In the initial installation state, the lower contact point (7) is located outside the upper contact point (6), and the lower contact point (7) and the upper contact point (6) do not directly contact each other. When the contact plate (14) moves outward, the upper contact point (6) moves outward with the deformation of the auxiliary pressure plate (5) and comes into contact with the lower contact point (7).

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