Battery connection structure

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery connecting structure. The battery connection structure comprises a battery shell, a conductor, a locking piece and an isolation assembly, the top surface of the battery shell is provided with accommodating grooves at the positive electrode and the negative electrode, the accommodating grooves penetrate through the side surface of the battery shell, and binding posts are arranged in the accommodating grooves. The two ends of the conductor are provided with wiring terminals. The locking pieces and the containing grooves are arranged in a one-to-one correspondence mode, the locking pieces can lock the wiring terminals to the binding posts, and the locking pieces are located in the containing grooves. The isolation assemblies and the containing grooves are arranged in a one-to-one correspondence mode, and the isolation assemblies can enable the wiring terminals, the binding posts and the locking pieces to be isolated from external air. The battery connection structure can ensure stable connection between adjacent batteries, avoids corrosion at connection points, prolongs the service life of the batteries, and improves the use safety of the batteries.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery connection structure. Background Art

[0002] As a clean energy source, power batteries are increasingly used in port environments. To meet the requirements of different capacities and voltages, power batteries usually include multiple battery modules connected in series and parallel through conductors (such as copper bars). Therefore, a power battery will contain multiple connection nodes.

[0003] However, in the port environment, the air humidity is relatively high, and there are problems such as severe salt spray corrosion. Long-term exposure of power batteries in the port environment will cause the connection points to be easily corroded, thereby reducing the service life of the batteries. In addition, due to the large current characteristics of power batteries, if the connection position is corroded, problems such as loose circuit connection and even fire are likely to occur, posing a great safety risk. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a battery connection structure, which can ensure the stable connection between adjacent batteries, avoid corrosion at the connection points, extend the service life of the batteries, and improve the safety of battery use.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] The battery connection structure includes:

[0007] A battery housing, on the top surface of which accommodation grooves are provided at the positive and negative electrode positions. The accommodation grooves penetrate through the side surface of the battery housing, and connection posts are arranged in the accommodation grooves;

[0008] A conductor, with connection terminals provided at both ends thereof;

[0009] Locking members, provided in one-to-one correspondence with the accommodation grooves. The locking members can lock the connection terminals to the connection posts, and the locking members are located in the accommodation grooves;

[0010] Isolation components, provided in one-to-one correspondence with the accommodation grooves. The isolation components can isolate the connection terminals, the connection posts, and the locking members from the outside air.

[0011] Preferably, the isolation components include isolation layers filled in the accommodation grooves, and the isolation layers can tightly wrap the connection terminals, the connection posts, and the locking members.

[0012] Preferably, the isolation layer is vaseline.

[0013] Preferably, the isolation component includes a cover plate. A first opening communicating with the accommodating groove is provided on the top surface of the battery housing, and a second opening communicating with the accommodating groove is provided on the side surface of the battery housing. The cover plate can cover the first opening and the second opening.

[0014] Preferably, the cover plate includes a first plate and a second plate which are connected and arranged at an angle. The first plate is used to cover the first opening, and the second plate is used to cover the second opening.

[0015] Preferably, an avoidance hole is provided on the second plate, and the avoidance hole can avoid the connection terminal.

[0016] Preferably, a connection hole is provided on the connection terminal, and the connection terminal is sleeved on the connection post through the connection hole.

[0017] Preferably, a threaded hole is axially provided on the connection post. The locking member includes a pressing plate and a screw rod provided on the pressing plate. The screw rod is screwed with the connection post through the threaded hole so that the pressing plate presses the connection terminal.

[0018] Preferably, a gasket is provided between the pressing plate and the connection terminal, and the screw rod penetrates through the gasket.

[0019] Preferably, the gasket includes one or more of a flat gasket or a lock washer.

[0020] Advantages of the present utility model:

[0021] For the battery connection structure provided by the present utility model, in specific use, the battery housings are arranged neatly according to design requirements, and then the two connection terminals of the conductor are correspondingly placed in the accommodating grooves of adjacent battery housings, and the two connection terminals are locked on the connection posts in the corresponding accommodating grooves by using the locking member; then the connection terminals, the connection posts and the locking member are isolated from the outside air by using the isolation component. The accommodating groove can provide an installation space for the connection position. After connection, the connection terminals and the locking member are both located in the accommodating groove, so as not to occupy the surface space of the battery housing and improve the space utilization rate of the battery housing. The isolation component can isolate the connection terminals, the connection posts and the locking member from the outside air, thereby effectively protecting the connection position, avoiding corrosion at the connection position, prolonging the service life of the battery, and further avoiding the problems of circuit loose connection and possible fire caused by corrosion at the connection position, and improving the safety of the battery during use. Description of the Drawings

[0022] Figure 1 is a three-dimensional schematic diagram of the battery connection structure provided by the present utility model;

[0023] Figure 2It is a three-dimensional schematic diagram of the battery housing of the battery connection structure provided by the present utility model;

[0024] Figure 3 It is a top view of the battery housing of the battery connection structure provided by the present utility model;

[0025] Figure 4 It is a schematic diagram of the internal structure of the battery connection structure provided by the present utility model;

[0026] Figure 5 is Figure 4 an enlarged view of part A in

[0027] In the figure:

[0028] 1. Battery housing; 11. Accommodating groove; 12. Terminal; 2. Conductor; 21. Wiring terminal; 211. Connection hole; 3. Locking member; 31. Pressure plate; 32. Screw; 4. Cover plate; 41. First plate; 42. Second plate; 5. Gasket; 51. Flat gasket; 52. Lock washer. Detailed implementation manners

[0029] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that, for the sake of convenience of description, only parts related to the present utility model are shown in the drawings, rather than all the structures.

[0030] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0031] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but are in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0032] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] Referring to Figures 1 to 5 , this embodiment provides a battery connection structure, which can ensure the stable connection between adjacent batteries, avoid corrosion at the connection points, extend the service life of the batteries, and improve the safety of battery use. The battery connection structure includes a battery housing 1, a conductor 2, a locking member 3, and an isolation assembly. The top surface of the battery housing 1 is provided with receiving grooves 11 at both the positive and negative electrode positions. The receiving grooves 11 penetrate through the side surface of the battery housing 1, and a terminal post 12 is arranged in the receiving grooves 11. Both ends of the conductor 2 are provided with connection terminals 21. The locking members 3 are arranged in one-to-one correspondence with the receiving grooves 11. The locking members 3 can lock the connection terminals 21 to the terminal posts 12, and the locking members 3 are located in the receiving grooves 11. The isolation assemblies are arranged in one-to-one correspondence with the receiving grooves 11. The isolation assemblies can isolate the connection terminals 21, the terminal posts 12, and the locking members 3 from the outside air.

[0034] During specific use, the battery housings 1 are arranged neatly according to the design requirements. Then, the two connection terminals 21 of the conductor 2 are correspondingly placed in the receiving grooves 11 of adjacent battery housings 1, and the two connection terminals 21 are locked to the terminal posts 12 in the corresponding receiving grooves 11 by using the locking members 3. After that, the connection terminals 21, the terminal posts 23, and the locking members 3 are isolated from the outside air by using the isolation assemblies. The receiving grooves 11 can provide an installation space for the wiring positions. After the connection is completed, the connection terminals 21 and the locking members 3 are both located in the receiving grooves 11, so as not to occupy the surface space of the battery housing 1 and improve the space utilization rate of the battery housing 1. The isolation assemblies can isolate the connection terminals 21, the terminal posts 12, and the locking members 3 from the outside air, avoid corrosion at the connection positions, effectively protect the connection positions, extend the service life of the batteries, and further avoid the problems of circuit loose connection and possible fire caused by corrosion at the connection positions, and improve the safety of battery use.

[0035] In this embodiment, the conductor 2 is selected as a copper bar. The copper bar has strong electrical conductivity, is convenient to obtain materials, and is suitable for conductive places with large currents. In other embodiments, the conductor 2 can also be selected as a flexible wire, such as a copper wire. The flexible wire is soft, easy to bend, and convenient to connect, so as to avoid cracking of the terminal posts 12.

[0036] Optionally, the isolation component includes an isolation layer filled in the accommodation groove 11. The isolation layer can tightly wrap the wiring terminal 21, the terminal post 12, and the locking member 3. After locking the wiring terminal 21 to the terminal post 12 using the locking member 3, the accommodation groove 11 is filled with the isolation layer so that the isolation layer tightly wraps the connection position, preventing the connection position from contacting the external environment and thus avoiding rust at the connection. Preferably, the isolation layer is petroleum jelly. Petroleum jelly can effectively isolate the connection position from the external air, and at the same time has good insulation performance, can avoid the risk of electric shock, and is inexpensive and convenient to obtain materials.

[0037] Optionally, referring to Figure 1 and Figure 2 , the isolation component includes a cover plate 4. The top surface of the battery housing 1 is provided with a first opening communicating with the accommodation groove 11, and the side surface of the battery housing 1 is provided with a second opening communicating with the accommodation groove 11. The cover plate 4 can seal the first opening and the second opening. Specifically, after locking the wiring terminal 21 to the terminal post 12 using the locking member 3, petroleum jelly is applied at the connection position so that the petroleum jelly tightly wraps the wiring terminal 21, the terminal post 12, and the locking member 3; then the cover plate 4 is blocked at the first opening and the second opening, effectively preventing rust at the connection position. The cover plate 3 can further increase the isolation effect between the connection position and the air, and at the same time can also prevent dust and the like from entering the accommodation groove 11 through the first opening and the second opening. Optionally, the cover plate 3 is adhesively bonded to the first opening and the second opening with sealant.

[0038] Further, referring to Figure 4 and Figure 5 , to effectively block the first opening and the second opening, the cover plate 4 includes a first plate 41 and a second plate 42 that are connected and arranged at an angle. The first plate 41 is used to seal the first opening, and the second plate 42 is used to seal the second opening. In this embodiment, the battery housing 1 is set as a cuboid, and the angle between the first plate 41 and the second plate 42 is 90°.

[0039] Optionally, the second plate 42 is provided with an avoidance hole that can avoid the wiring terminal 21. The setting of the avoidance hole can prevent the wiring terminal 21 from interfering with the second plate 42. Specifically, the avoidance hole is provided at one end of the second plate 42 away from the first plate 41 and penetrates the end face of the second plate 42 along the direction away from the first plate 41. Referring to Figure 4 for the orientation in, when installing the cover plate 4, align the first plate 41 with the first opening and align the avoidance hole with the wiring terminal 21, and then block the cover plate 4 at the first opening and the second opening from top to bottom.

[0040] Optionally, referring to Figure 1 and Figure 3, a connection hole 211 is provided on the terminal 21, and the terminal 21 is sleeved on the terminal post 12 through the connection hole 211. When connecting, the two terminals 21 of the conductor 2 are respectively sleeved on the terminal posts 12 in the accommodating grooves 11 of the adjacent battery cases 1 through the connection holes 211, so that the conductor 2 can be limited between the two battery cases 1, preventing the conductor 2 from detaching from the battery case 1, which facilitates the subsequent use of the locking member 3 to lock the terminal 21.

[0041] Furthermore, a threaded hole is axially provided on the terminal post 12. The locking member 3 includes a pressing plate 31 and a screw rod 32 provided on the pressing plate 31. The screw rod 32 is screwed with the terminal post 12 through the threaded hole to press the pressing plate 31 against the terminal 21. The method of threaded connection is convenient for installation and disassembly and has stable connection. The locking can be completed by screwing the screw rod 32 into the threaded hole. Optionally, the locking member 3 is a bolt, the head of the bolt is the above-mentioned pressing plate 31, and the threaded part of the bolt is the above-mentioned screw rod 32.

[0042] Preferably, a gasket 5 is provided between the pressing plate 31 and the terminal 21, and the screw rod 32 passes through the gasket 5. The gasket 5 can increase the connection strength between the locking member 3, the terminal 21 and the terminal post 12, and can also effectively protect the parts. Optionally, the gasket 5 includes one or more of a flat gasket 51 or a lock washer 52. In this embodiment, a flat gasket 51 and a lock washer 52 are provided between the pressing plate 31 and the terminal 21. Refer to Figure 5 , the flat gasket 51 and the lock washer 52 are sleeved on the terminal post 12 in sequence from top to bottom. Furthermore, the lock washer 52 is selected as a spring washer, and the spring washer has good anti-loosening effect and low price.

[0043] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A battery connection structure, characterized in that: include: A battery housing (1), wherein the top surface of the battery housing (1) is provided with a receiving groove (11) at the position of the positive electrode and the negative electrode, the receiving groove (11) passes through the side surface of the battery housing (1), and a terminal (12) is provided in the receiving groove (11); A conductor (2), wherein both ends of the conductor (2) are provided with connection terminals (21); A locking member (3) is arranged in one-to-one correspondence with the receiving groove (11), the locking member (3) can lock the connecting terminal (21) to the connecting post (12), and the locking member (3) is located in the receiving groove (11); An isolation component is arranged in one-to-one correspondence with the accommodating groove (11), and the isolation component can isolate the connecting terminal (21), the connecting post (12) and the locking member (3) from the outside air.

2. The battery connection structure according to claim 1, characterized in that: The isolation component comprises an isolation layer filled in the accommodating groove (11), and the isolation layer can tightly wrap the connecting terminal (21), the connecting post (12) and the locking member (3).

3. The battery connection structure according to claim 2, characterized in that: The isolation layer is vaseline.

4. The battery connection structure according to claim 1, characterized in that: The isolation assembly comprises a cover plate (4); the top surface of the battery housing (1) is provided with a first opening connected to the accommodating groove (11); the side surface of the battery housing (1) is provided with a second opening connected to the accommodating groove (11); and the cover plate (4) is capable of covering the first opening and the second opening.

5. The battery connection structure according to claim 4, characterized in that: The cover plate (4) comprises a first plate (41) and a second plate (42) which are connected and arranged at an angle, the first plate (41) being used to cover the first opening, and the second plate (42) being used to cover the second opening.

6. The battery connection structure according to claim 5, characterized in that: The second plate (42) is provided with an avoidance hole, and the avoidance hole can avoid the connection terminal (21).

7. The battery connection structure according to any one of claims 1 to 6, characterized in that: The connection terminal (21) is provided with a connection hole (211), and the connection terminal (21) is sleeved on the connection post (12) through the connection hole (211).

8. The battery connection structure according to claim 7, characterized in that: The terminal post (12) is provided with a threaded hole along the axial direction, and the locking member (3) comprises a pressing plate (31) and a screw rod (32) provided on the pressing plate (31), and the screw rod (32) is screwed to the terminal post (12) through the threaded hole so that the pressing plate (31) presses the terminal (21).

9. The battery connection structure according to claim 8, characterized in that: A gasket (5) is provided between the pressing plate (31) and the connecting terminal (21), and the screw rod (32) passes through the gasket (5).

10. The battery connection structure according to claim 9, characterized in that: The gasket (5) comprises one or more of a flat gasket (51) and an anti-loosening gasket (52).

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