Battery connecting structure

Abstract

The utility model discloses a battery connecting structure, which overcomes the problems of time and labor waste and overlarge contact resistance caused by untight connection of a battery series connection mode in the prior art, and comprises a wiring terminal and a connecting component, the wiring terminal comprises a connecting plate, the connecting plate is connected with a battery through a round hole in one side of the connecting plate, and the connecting component is arranged in the connecting plate. A supporting piece is inserted in the round hole in the other side of the connecting plate, the connecting assembly comprises a hollow ball body, the hollow ball body is connected with a metal clamp, and the hollow ball body is connected with the supporting piece. The wiring mode is simple and fast, the dismounting is convenient, the working efficiency is high, no thread is used, and the defects of thread slipping and loosening are avoided.

Description

Technical Field

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

[0002] A battery is a device that converts and stores energy. Products like electric bicycles and electric vehicles typically have high rated voltages, and a single battery cannot provide the required voltage. Therefore, multiple batteries are connected in series to multiply the battery pack voltage to meet the appliance's needs.

[0003] However, the current connection method between batteries usually uses threaded connection, and when wiring, screws need to be screwed into each terminal, which is time-consuming and labor-intensive. The battery pack is subject to vibration and bumps inside the device, which can loosen the screws and make the connection wire and the terminal not in close contact, resulting in excessive contact resistance or even circuit breakage. Summary of the Invention

[0004] The purpose of the utility model is to overcome the problems in the prior art of time-consuming and labor-intensive battery series connection and excessive contact resistance caused by loose connections, and to provide a battery connection structure with a simple and quick wiring method, easy assembly and disassembly, high work efficiency, no use of threads, and no disadvantages of thread slippage and looseness.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A battery connection structure includes: a terminal and a connection assembly, the terminal including a connection plate, the connection plate being connected to the battery through a circular hole on one side thereof, a support member being inserted into the circular hole on the other side of the connection plate, and the connection assembly including a hollow sphere connected to a metal clip, and the hollow sphere being connected to the support member.

[0007] The battery connection structure provided by the utility model does not use threads during connection, and has no disadvantages of thread slippage and looseness. The clamping method adopts the dovetail clamp form, which has a tight connection and low resistance. It can be connected by pressing by hand. The wiring method is simple and fast, and the disassembly and assembly are convenient, with high work efficiency.

[0008] Preferably, the support member includes a first cylinder, a second cylinder is mounted on the top of the first cylinder, and a connecting sphere is mounted on the top of the second cylinder.

[0009] Preferably, the metal clip includes a metal spring and a clip tail, and the metal spring is connected to the hollow sphere.

[0010] Preferably, the hollow sphere includes a first shell and a second shell, and the first shell and the second shell are respectively connected to a metal spring.

[0011] Preferably, the support member includes a first cylinder, a second cylinder is inserted into the first cylinder, and a connecting sphere is installed on the top of the second cylinder.

[0012] Preferably, the hollow sphere comprises a hollow sphere with a portion cut off from both the lower end and the front end.

[0013] Preferably, the connecting sphere is a three-quarter sphere.

[0014] Preferably, the first cylindrical diameter is larger than the second cylindrical diameter.

[0015] Preferably, the outer diameter of the connecting sphere of the terminal is equal to the inner diameter of the hollow sphere of the connecting assembly.

[0016] Preferably, the metal spring is provided with a handle.

[0017] Therefore, the utility model has the following beneficial effects:

[0018] The overlapping part of the terminal block and the connection component is in an incomplete spherical shape, and the overlapping area is much larger than the traditional ring, so the contact resistance is small. At the same time, this method does not use threads, and there are no disadvantages of thread slippage and looseness. The clamping method adopts a dovetail clamp form, which can be connected by simply pressing with hands. The wiring method is simple and fast, easy to disassemble and assemble, and has high work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the battery connection structure in the present utility model.

[0020] Figure 2 It is a schematic diagram of the overall structure of the battery connection structure in the prior art.

[0021] Figure 3 This is a schematic diagram of battery pack connection in the prior art.

[0022] Figure 4 It is a front view of the wiring terminal in the utility model.

[0023] Figure 5 It is a side view of the wiring terminal in the utility model.

[0024] Figure 6 It is a top view of the wiring terminal in the utility model.

[0025] Figure 7 It is a front view of the connecting component in the utility model.

[0026] Figure 8 It is a top view of the connecting component in the utility model.

[0027] Figure 9 It is a connection diagram of the battery pack in the utility model.

[0028] In the figure: 1. Connecting plate; 2. First cylinder; 3. Second cylinder; 4. Connecting sphere; 5. Hollow sphere; 6. Metal shrapnel; 7. Clip tail; 8. Handle; 9. Battery; 10. Terminal block; 11. Connecting assembly. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments: Example

[0030] This embodiment is a battery connection structure, and its overall structure is as follows Figure 1 As shown, it includes: a connection terminal 10 and a connection component 11, the connection terminal is respectively connected to the battery 9 and the connection component, and the connection component is respectively connected to the connection component of another battery.

[0031] The battery connection structure provided in this embodiment does not use threads during connection, and has no disadvantages of thread slippage and looseness. The clamping method adopts a dovetail clamp form, which has a tight connection and low resistance. It can be connected by simply pressing with hands. The wiring method is simple and fast, and disassembly and assembly are convenient, with high work efficiency.

[0032] The battery connection structure provided in this embodiment is further described below with reference to specific examples.

[0033] Batteries convert chemical or physical energy into electrical energy through reactions. A battery is a chemical power source consisting of two electrochemically active electrodes of different compositions, one positive and one negative. These electrodes are immersed in an electrolyte that provides a medium for conductivity. When connected to an external carrier, they convert the chemical energy within them to generate energy. As a device for storing electrical energy, when the positive and negative electrodes are immersed in the electrolyte, they conduct electricity and generate a certain electromotive force between the plates. The magnitude of this electromotive force (or voltage) depends on the electrode material used, and different types of batteries have different electromotive forces. Existing technology requires connecting multiple batteries in series to multiply the battery pack voltage to meet the needs of electrical appliances.

[0034] Currently, battery terminals and connection components such as Figure 2 As shown, one side of the connection terminal is a round hole, and the other side of the connection terminal is a cylinder with internal threads. The round hole side is welded to the pole group of the battery, and then the terminal is sealed on the battery cover with sealant. The end of the cylinder is fixed with the connection terminal and the connection wire by screwing in the screw. Figure 4As shown, this method uses threaded connection, and screws need to be screwed into each terminal when wiring, which is time-consuming and labor-intensive. The battery pack will be subjected to vibration, bumps, etc. inside the device, which will loosen the screws and make the connection wires and the terminal not in close contact, resulting in excessive contact resistance or even short circuit. The threaded connection is prone to slippage. If the inner thread of the terminal is slipped, the battery shell needs to be completely destroyed and reassembled because the terminal has been sealed with sealant. The overlapping surface between the connecting wire and the terminal is a ring-shaped metal sheet, and the overlapping area is too small. If the terminal or the connecting wire is partially corroded, the overlapping area will be further reduced, increasing the contact resistance.

[0035] The battery connection structure provided in this embodiment includes wiring terminals and connection components, and the batteries are connected through the wiring terminals and connection components.

[0036] The front view of the terminal block is as follows Figure 4 As shown, the side view is Figure 5 As shown, the top view is Figure 6 As shown, the terminal includes a connecting plate 1, a first cylinder 2, a second cylinder 3 and a connecting sphere 4. The right side of the connecting plate is larger than the left side, and there is a circular hole on both sides of the connecting plate. The circular hole on the left is installed on the battery, and the first cylinder is installed on the circular hole on the right. The second cylinder is installed on the top of the first cylinder, and the connecting sphere is installed on the top of the second cylinder.

[0037] Furthermore, a support column is provided below the first cylinder to support the terminal block, thereby preventing the right end of the connecting plate from being too heavy, which may cause the circular hole on the left end of the connecting plate to be loosely connected to the battery.

[0038] During installation, the round hole on the left side of the terminal is installed on the battery and welded to the battery's pole group and pole. The connecting spherical part of the terminal is exposed on the outside of the battery cover, and the rest of the terminal is sealed with sealant.

[0039] In this embodiment, the front view of the connecting component is as follows Figure 7 As shown, the top view of the connection components is as follows Figure 8 As shown, the connection assembly includes a hollow sphere and a metal clip. The metal clip is connected to the hollow sphere 5, the hollow sphere is connected to the terminal, and the metal clip is connected to the battery.

[0040] Furthermore, the metal clip structure is similar to a dovetail clip, consisting of a metal spring 6, a clip tail 7, and a handle 8. The metal spring is connected to the clip tail, which is a connecting line. Handles are installed on both sides of the metal spring, and the metal spring is connected to the hollow sphere.

[0041] The hollow sphere includes two identical shells, a first shell and a second shell, wherein the first shell is connected to the upper side of the metal dome, and the second shell is connected to the lower side of the metal dome. The first shell and the second shell are closed with the metal dome to form a hollow sphere, and the first shell and the second shell are opened with the metal dome to wrap the connecting sphere of the terminal.

[0042] When connecting, hold the handle and open the metal shrapnel. The first shell and the second shell will open as the metal shrapnel opens. Install them on the connecting sphere. Release the handle and the connecting sphere will be installed inside the hollow sphere composed of the first shell and the second shell.

[0043] Based on the above structure, the battery connection structure provided in this embodiment has the following beneficial effects:

[0044] (1) In this embodiment, the connection method used does not use threads, and there are no disadvantages of thread slippage and loosening.

[0045] (2) In this embodiment, the connection method adopted is a dovetail clamp, which can be connected by simply pressing with the hand. The wiring method is simple and fast, easy to assemble and disassemble, and has high work efficiency.

[0046] Example 2:

[0047] This embodiment provides a battery connection structure, which is further optimized based on the first embodiment.

[0048] Specifically:

[0049] The diameter of the first cylinder is larger than the diameter of the second cylinder, and the diameter of the second cylinder is smaller than the diameter of the connecting sphere, so that when the connecting component clamps the connecting sphere of the terminal, the second cylinder will not block the connecting sphere, resulting in loose contact between the connecting sphere and the connecting component, thereby causing excessive contact resistance or even a short circuit.

[0050] Furthermore, the connected sphere of the connected spheres is a three-quarter sphere.

[0051] In this embodiment, the hollow sphere of the connecting assembly is a hollow sphere with a portion of the front and lower parts cut off, and the inner diameter of the hollow sphere is the same as the outer diameter of the connecting sphere of the terminal.

[0052] That is, the connecting sphere of the terminal is connected to the hollow sphere of the connecting assembly, and the connecting parts of the two are incomplete spheres, so that the hollow sphere can better contact with the connecting sphere, increase the contact area between the two, and reduce the contact resistance.

[0053] Further, such as Figure 9 As shown, in this embodiment, the metal spring part of the connecting component can be a metal spring connected to the end of a clip tail, or a metal spring connected to each of the two ends of a clip tail.

[0054] like Figure 9 As shown, the battery connection structure of this embodiment is used to connect the battery in the following manner:

[0055] In the battery pack, all cells have terminals on both pole groups, and each terminal is connected to a connector assembly. One of the connector assemblies for the two outermost cells is a metal spring connected to the end of a clip. Another connector for the two outermost cells, as well as the two connector assemblies installed on the middle cells, are each a clip with a metal spring connected to each end. The two metal springs of this connector assembly are installed, one on one of the cell's terminals and the other on the other terminal of the adjacent cell. The two metal springs are connected by the clip.

[0056] Specifically, for example, each battery includes a connection terminal on the left and a connection terminal on the right. The leftmost battery has a metal spring installed on its left connection terminal, and the battery adjacent to it has a metal spring installed on its right connection terminal. The two metal springs are connected by a clip. Similarly, the metal spring installed on the left connection terminal of the adjacent battery is connected to the metal spring installed on the right connection terminal of the next adjacent battery by a clip, and so on.

[0057] The battery connection structure provided in this embodiment, based on the first embodiment, also has the following beneficial effects:

[0058] In this embodiment, the connection method used is that the connecting sphere of the terminal is a three-quarter sphere, and a part of the front end and the lower end of the hollow sphere of the connecting component are removed. The overlapping parts of the terminal and the connecting component are both incomplete spherical, and the overlapping area is much larger than the traditional ring. Therefore, the contact resistance is small, which improves the quality of the batteries after series connection.

[0059] Example 3:

[0060] This embodiment provides a battery connection structure, which includes: a connection terminal and a connection component, the connection terminal is respectively connected to the battery and the connection component, and the connection component is respectively connected to the connection component of another battery.

[0061] The battery connection structure provided in this embodiment does not use threads during connection, and has no disadvantages of thread slippage and looseness. The clamping method adopts a dovetail clamp form, which has a tight connection and low resistance. It can be connected by simply pressing with hands. The wiring method is simple and fast, and disassembly and assembly are convenient, with high work efficiency.

[0062] The battery connection structure provided in this embodiment is further described below with reference to specific examples.

[0063] Furthermore, the terminal block includes a connecting plate, a first cylinder, a second cylinder, and a connecting ball. The right side of the connecting plate is larger than the left side, and a circular hole is provided on each side of the connecting plate. The circular hole on the left side is mounted on the battery, and the circular hole on the right side is mounted on the first cylinder. The first cylinder is hollow, and the inner hole of the first cylinder is the same size as the circular hole on the right side of the connecting plate. During installation, the inner hole of the first cylinder is aligned with the circular hole on the right side of the connecting plate, and the outer diameter of the second cylinder is the same as the diameter of the inner hole of the first cylinder. The second cylinder is inserted into the inner hole of the first cylinder from above the first cylinder and passes through the circular hole on the right side of the connecting plate. The connecting ball is mounted on the top of the second cylinder.

[0064] In this embodiment, the portion of the second cylinder passing through the upper end of the first cylinder is used to connect to the connecting sphere to support the connecting sphere, and the portion of the second cylinder passing through the lower end of the first principle is used as a supporting column to support the entire terminal to prevent the circular hole on the left end of the connecting plate from being loosely connected to the battery due to the right end of the connecting plate being too heavy.

[0065] During installation, the round hole on the left side of the terminal is installed on the battery and welded to the battery's pole group and pole. The connecting spherical part of the terminal is exposed on the outside of the battery cover, and the rest of the terminal is sealed with sealant. The second cylinder abuts the battery to support the terminal.

[0066] In this embodiment, the front view of the connecting component is as follows Figure 7 As shown, the top view of the connection components is as follows Figure 8 As shown, the connection assembly includes a hollow sphere and a metal clip. The metal clip is connected to the hollow sphere 5, the hollow sphere is connected to the terminal, and the metal clip is connected to the battery.

[0067] Furthermore, the metal clip structure is similar to a dovetail clip, consisting of a metal spring 6, a clip tail 7, and a handle 8. The metal spring is connected to the clip tail, which is a connecting line. Handles are installed on both sides of the metal spring, and the metal spring is connected to the hollow sphere.

[0068] The hollow sphere includes two identical shells, a first shell and a second shell, wherein the first shell is connected to the upper side of the metal dome, and the second shell is connected to the lower side of the metal dome. The first shell and the second shell are closed with the metal dome to form a hollow sphere, and the first shell and the second shell are opened with the metal dome to wrap the connecting sphere of the terminal.

[0069] When connecting, hold the handle and open the metal shrapnel. The first shell and the second shell will open as the metal shrapnel opens. Install them on the connecting sphere. Release the handle and the connecting sphere will be installed inside the hollow sphere composed of the first shell and the second shell.

[0070] No threads are used during connection, so there are no disadvantages of thread slippage and looseness. The clamping method adopts the dovetail clamp form, which can be connected by simply pressing with your hands. The wiring method is simple and fast, easy to assemble and disassemble, and has high work efficiency.

[0071] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A battery connection structure, characterized in that: include: The wiring terminal and the connecting assembly include a connecting plate, which is connected to the battery through a circular hole on one side of the connecting plate, and a support is inserted into the circular hole on the other side of the connecting plate. The connecting assembly includes a hollow sphere, which is connected to a metal clip and connected to the support.

2. A battery connection structure according to claim 1, characterized in that: The support member includes a first cylinder, a second cylinder is installed on the top of the first cylinder, and a connecting sphere is installed on the top of the second cylinder.

3. The battery connection structure according to claim 1, characterized in that: The metal clip comprises a metal spring and a clip tail, and the metal spring is connected to the hollow sphere.

4. A battery connection structure according to claim 3, characterized in that: The hollow sphere includes a first shell and a second shell, and the first shell and the second shell are respectively installed on the upper and lower sides of the metal dome.

5. The battery connection structure according to claim 1, characterized in that: The support member includes a first cylinder, a second cylinder is inserted into the first cylinder, and a connecting sphere is installed on the top of the second cylinder.

6. A battery connection structure according to claim 1, 3 or 4, characterized in that: The hollow sphere includes a hollow sphere with a portion cut off at both the lower end and the front end.

7. A battery connection structure according to claim 2 or 5, characterized in that: The connecting sphere is a three-quarter sphere.

8. The battery connection structure according to claim 2, characterized in that: The first cylindrical diameter is greater than the second cylindrical diameter.

9. A battery connection structure according to claim 2, 5 or 8, characterized in that: The outer diameter of the connecting sphere of the terminal is equal to the inner diameter of the hollow sphere of the connecting assembly.

10. The battery connection structure according to claim 3, characterized in that: A handle is provided on the metal spring.

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