Connecting structure of assembled battery

Abstract

The utility model discloses a connecting structure of an assembled battery, which comprises a battery shell, a top cover is mounted at the top of the battery shell, a first single battery, a second single battery, a third single battery and a fourth single battery are sequentially arranged at four corners in the battery shell, a cross-shaped partition frame is arranged in the middle of the inner wall of the battery shell, and a connecting rod is arranged in the cross-shaped partition frame. A first metal guide sheet is arranged between the first single battery and the second single battery, a second metal guide sheet is arranged between the second single battery and the third single battery, a third metal guide sheet is arranged between the third single battery and the fourth single battery, and battery positive electrode sleeves are arranged at corners of the bottom of the top cover; according to the connecting structure of the assembled battery disclosed by the utility model, the whole assembled battery connecting structure combines and connects the batteries through the connecting sheets, so that the material cost is saved, the resources are saved, and the product is more environment-friendly.

Description

Technical Field

[0001] The utility model relates to the field of battery combinations, in particular to a connection structure of a combined battery. Background Technique

[0002] In order to store more electric energy, the commonly used 4R25 single battery needs to be combined into a battery pack. In the prior art, the connection process of the 4R25 combined battery is as follows: single batteries are welded in series into a combined battery pack by wires (copper wire materials) and tin. Specifically, a wire is welded to the negative electrode side of each battery monomer with tin, and then the other end of the wire is welded to the positive electrode of another monomer battery, so that four monomer batteries are processed in series into a combined battery. In some other connection methods, the positive and negative electrodes of each battery are connected by a torsion spring. The connection of the combined battery in the above methods requires a large amount of energy consumption or consumes metal resources, causes environmental pollution during the production process, and has a high production cost. Content of the Utility Model

[0003] The purpose of the utility model is to provide a connection structure of a combined battery to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: a connection structure of a combined battery, including a battery housing, a top cover is installed on the top of the battery housing, four corners inside the battery housing are sequentially provided with a first monomer battery, a second monomer battery, a third monomer battery and a fourth monomer battery, a cross partition frame is provided in the middle of the inner wall of the battery housing, a first metal guide piece is provided between the first monomer battery and the second monomer battery, a second metal guide piece is provided between the second monomer battery and the third monomer battery, a third metal guide piece is provided between the third monomer battery and the fourth monomer battery, a cylindrical spring is installed at one corner of the top of the top cover, a pagoda spring is installed at the center of the top of the top cover, battery positive electrode sleeves are provided at the corners of the bottom of the top cover, a first connection piece is provided in the middle of one of the battery positive electrode sleeves, a center plate is provided at the center of the bottom of the top cover, a second connection piece is connected to the middle of the center plate, and a reinforcing ring frame is installed in the middle of the outside of the battery housing.

[0005] Preferably, the positive electrode of the first monomer battery is connected to one end of the first metal guide piece, the other end of the first metal guide piece is connected to the negative electrode of the second monomer battery, the positive electrode of the second monomer battery is connected to one end of the second metal guide piece, the other end of the second metal guide piece is connected to the negative electrode of the third monomer battery, the positive electrode of the third monomer battery is connected to one end of the third metal guide piece, and the other end of the third metal guide piece is connected to the negative electrode of the fourth monomer battery.

[0006] Preferably, one end of the first connecting piece is connected to the cylindrical spring, and the first connecting piece is in contact with the positive electrode of the fourth single cell. The cylindrical spring is convenient for indirectly connecting to the positive electrode of the fourth single cell.

[0007] Preferably, one end of the second connecting piece is connected to the pagoda spring, and the other end of the second connecting piece is connected to the negative electrode of the first single cell. The second connecting piece is used to connect the negative electrode of the first single cell.

[0008] Preferably, two fixing grooves are provided at the top of the top cover, and both the cylindrical spring and the pagoda spring are installed inside the fixing grooves. The fixing grooves are convenient for installing the cylindrical spring and the pagoda spring.

[0009] Preferably, through openings are provided on both sides of the battery housing, and a plurality of reinforcing ribs are provided on the surface of the reinforcing ring frame. The reinforcing ring frame includes a base layer and a wear-resistant layer connected to the outside of the base layer. The base layer is made of PPS, and the wear-resistant layer is made of ceramic coating. The reinforcing ring frame is used to reinforce the outside of the battery housing.

[0010] Compared with the prior art, the beneficial effects of the present utility model are:

[0011] Four single cells are installed inside the battery housing. The four batteries are connected in series through the first single cell, the second metal guide piece, the third metal guide piece and the second connecting piece. A first connecting piece is provided at the bottom of the top cover. When the top cover is covered on the battery housing, the battery positive electrode sleeve can be stuck on the positive electrode ends of the four single cells, and at this time, the first connecting piece is in contact with the positive electrode end of the fourth single cell to complete the complete connection of the four batteries. Then, the cylindrical spring and the pagoda spring can be directly connected to the power supply from the outside for use. The entire combined battery connection structure combines and connects the batteries through the connecting piece, greatly saving the material cost, and can use machines to replace manual installation, which can save labor and resources and make the product more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the present utility model;

[0013] Figure 2 is a top view structure diagram of the battery housing of the present utility model;

[0014] Figure 3 is a top view structure diagram of the top cover of the present utility model;

[0015] Figure 4 is a bottom view structure diagram of the top cover of the present utility model;

[0016] Figure 5 is a composition structure diagram of the reinforcing ring frame of the present utility model.

[0017] In the figure: 1. Battery housing; 2. Top cover; 3. Reinforcing ring frame; 4. First single battery; 5. Second single battery; 6. Third single battery; 7. Fourth single battery; 8. Cross partition frame; 9. First metal guide piece; 10. Second metal guide piece; 11. Third metal guide piece; 12. Cylindrical spring; 13. Conical spring; 14. Fixed groove; 15. Battery positive electrode sleeve; 16. First connecting piece; 17. Central disc; 18. Second connecting piece; 19. Through hole; 20. Reinforcing rib; 21. Base layer; 22. Wear-resistant layer. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-5 , the present invention provides a connection structure for a combined battery, including a battery housing 1, a top cover 2 is installed on the top of the battery housing 1, a first single battery 4, a second single battery 5, a third single battery 6 and a fourth single battery 7 are sequentially arranged at the four corners inside the battery housing 1, a cross partition frame 8 is arranged in the middle of the inner wall of the battery housing 1, a first metal guide piece 9 is arranged between the first single battery 4 and the second single battery 5, a second metal guide piece 10 is arranged between the second single battery 5 and the third single battery 6, a third metal guide piece 11 is arranged between the third single battery 6 and the fourth single battery 7, a cylindrical spring 12 is installed at one corner of the top of the top cover 2, a conical spring 13 is installed at the center of the top of the top cover 2, battery positive electrode sleeves 15 are arranged at the corners of the bottom of the top cover 2, a first connecting piece 16 is arranged in the middle of one of the battery positive electrode sleeves 15, a central disc 17 is arranged at the center of the bottom of the top cover 2, a second connecting piece 18 is connected to the middle of the central disc 17, and a reinforcing ring frame 3 is installed in the middle of the outside of the battery housing 1;

[0020] In this embodiment, the series connection of four batteries can be completed through the first metal guide piece 9, the second metal guide piece 10, the third metal guide piece 11, and the second connecting piece 18. When the top cover 2 is covered on the battery housing 1, the battery positive electrode sleeve 15 can be stuck on the positive electrodes of the four single batteries, and at this time, the first connecting piece 16 is in contact with the positive electrode of the fourth single battery 7.

[0021] Refer to Figures 1-5, the positive electrode of the first single cell 4 is connected to one end of the first metal guide piece 9, the other end of the first metal guide piece 9 is connected to the negative electrode of the second single cell 5, the positive electrode of the second single cell 5 is connected to one end of the second metal guide piece 10, the other end of the second metal guide piece 10 is connected to the negative electrode of the third single cell 6, the positive electrode of the third single cell 6 is connected to one end of the third metal guide piece 11, the other end of the third metal guide piece 11 is connected to the negative electrode of the fourth single cell 7, one end of the first connecting piece 16 is connected to the cylindrical spring 12, the first connecting piece 16 is in contact with the positive electrode of the fourth single cell 7, one end of the second connecting piece 18 is connected to the pagoda spring 13, the other end of the second connecting piece 18 is connected to the negative electrode of the first single cell 4, two fixing grooves 14 are provided at the top of the top cover 2, and both the cylindrical spring 12 and the pagoda spring 13 are installed inside the fixing grooves 14;

[0022] In this embodiment, four single cells are installed inside the battery housing 1 and separated by a cross partition frame 8. The first single cell 4, the second single cell 5, the third single cell 6 and the fourth single cell 7 are connected in series by means of connecting pieces, which facilitates the connection between the batteries, and the connecting pieces at the positive electrode end can be pressed tightly by the battery positive electrode sleeve 15.

[0023] Refer to Figures 1-5 , through openings 19 are provided on both sides of the battery housing 1, and a number of reinforcing ribs 20 are provided on the surface of the reinforcing ring frame 3. The reinforcing ring frame 3 includes a base layer 21 and a wear-resistant layer 22 connected to the outside of the base layer 21. The base layer 21 is made of PPS, and the wear-resistant layer 22 is made of ceramic coating;

[0024] In this embodiment, by providing the reinforcing ring frame 3 on the outside of the battery housing 1 and providing a number of reinforcing ribs 20, the support strength of the battery housing 1 can be improved, making the battery housing 1 more firm and durable.

[0025] In actual use, for the connection structure of a combined battery of the present utility model, four single batteries are installed inside the battery housing 1 and separated by a cross partition frame 8. The positive electrode of the first single battery 4 is connected to one end of the first metal guide piece 9, and the other end is connected to the negative electrode of the second single battery 5. The positive electrode of the second single battery 5 is connected to one end of the second metal guide piece 10, and the other end is connected to the negative electrode of the third single battery 6. The positive electrode of the third single battery 6 is connected to one end of the third metal guide piece 11, and the other end is connected to the negative electrode of the fourth single battery 7. And one end of the second connecting piece 18 is connected to the positive electrode of the first single battery 4 to complete the series connection of the four batteries. When the top cover 2 is placed above the battery housing 1, the battery positive electrode sleeve 15 can be stuck on the positive electrode ends of the four single batteries. And at this time, the first connecting piece 16 is in contact with the positive electrode end of the fourth single battery 7. Then, the cylindrical spring 12 and the pagoda spring 13 can be directly connected to the power supply from the outside for use. The cylindrical spring 12 and the pagoda spring 13 can serve as the positive and negative electrodes of the entire combined battery. The connection structure of the entire combined battery combines and connects the batteries through the metal guide pieces and connecting pieces, greatly saving the material cost. And it can use machines to replace manual installation, saving labor and resources, making the product more environmentally friendly.

[0026] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A connection structure of a combined battery, comprising a battery housing (1), characterized in that: A top cover (2) is installed on the top of the battery case (1). Four corners inside the battery case (1) are successively provided with a first single cell (4), a second single cell (5), a third single cell (6), and a fourth single cell (7). A cross partition frame (8) is provided in the middle of the inner wall of the battery case (1). A first metal guide piece (9) is provided between the first single cell (4) and the second single cell (5). A second metal guide piece (10) is provided between the second single cell (5) and the third single cell (6). A third metal guide piece (11) is provided between the third single cell (6) and the fourth single cell (7). A cylindrical spring (12) is installed at one corner on the top of the top cover (2). A pagoda spring (13) is installed at the center on the top of the top cover (2). Battery positive sleeves (15) are provided at the corners on the bottom of the top cover (2). A first connecting piece (16) is provided in the middle of one of the battery positive sleeves (15). A center plate (17) is provided at the center on the bottom of the top cover (2). A second connecting piece (18) is connected to the middle of the center plate (17). A reinforcing ring frame (3) is installed in the middle on the outside of the battery case (1).

2. The connection structure of a combined battery according to claim 1, characterized in that: The positive electrode of the first single cell (4) is connected to one end of the first metal guide piece (9), and the other end of the first metal guide piece (9) is connected to the negative electrode of the second single cell (5). The positive electrode of the second single cell (5) is connected to one end of the second metal guide piece (10), and the other end of the second metal guide piece (10) is connected to the negative electrode of the third single cell (6). The positive electrode of the third single cell (6) is connected to one end of the third metal guide piece (11), and the other end of the third metal guide piece (11) is connected to the negative electrode of the fourth single cell (7).

3. The connection structure of a combined battery according to claim 1, wherein: One end of the first connecting piece (16) is connected to the cylindrical spring (12), and the first connecting piece (16) is in contact with the positive electrode of the fourth single cell (7).

4. The connection structure of a combined battery according to claim 1, characterized in that: One end of the second connecting piece (18) is connected to the pagoda spring (13), and the other end of the second connecting piece (18) is connected to the negative electrode of the first single cell (4).

5. The connection structure of a combined battery according to claim 1, characterized in that: Two fixing grooves (14) are provided on the top of the top cover (2), and both the cylindrical spring (12) and the pagoda spring (13) are installed inside the fixing grooves (14).

6. The connection structure of a combined battery according to claim 1, characterized in that: Through openings (19) are provided on both sides of the battery case (1), and a plurality of reinforcing ribs (20) are provided on the surface of the reinforcing ring frame (3).

7. The connection structure of a combined battery according to claim 1, characterized in that: The reinforcing ring frame (3) includes a base material layer (21) and a wear-resistant layer (22) connected to the outside of the base material layer (21). The base material layer (21) is made of PPS, and the wear-resistant layer (22) is made of ceramic coating.

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