A battery cell structure for longitudinal connection

Abstract

This utility model discloses a battery cell structure for longitudinal connection, comprising: several batteries; a first housing; and several battery cell assemblies spaced apart along the long axis within a receiving groove, with each battery cell assembly positioned between two adjacent batteries. A first electrode and a second electrode are installed on the inner wall of one side of the receiving groove to enable electrical conductivity between the batteries within the receiving groove. In this utility model, the receiving groove is formed along the long axis of the first housing, and battery cell assemblies are added between adjacent batteries for separation. This effectively addresses elongated structures, and the addition of battery cell assemblies ensures consistent assembly force for each battery, thereby guaranteeing stable power delivery. The battery cell assemblies in this utility model effectively prevent direct contact between adjacent batteries, thus maximizing the performance of the entire battery pack and effectively preventing overheating and fire, ensuring stable power delivery.

Description

Technical Field

[0001] This utility model relates to the field of battery installation technology, and specifically to a battery cell structure for longitudinal connection. Background Technology

[0002] A battery box is a container used to hold batteries. Its main function is to protect the batteries from external impacts, overheating, water leakage, and other harmful effects. It ensures the safety of the batteries in various environments and prevents battery damage or performance degradation.

[0003] Currently, most battery boxes on the market are arranged in a side-by-side configuration. For example, Chinese utility model patent application CN215119099 U discloses a battery box comprising: a first box body, a second box body detachably stacked on the first box body, and a connecting component disposed on the first and second box bodies to detachably connect the first and second box bodies. This battery box facilitates battery box inspection by detachably stacking the second box body on the first box body and centrally positioning the second box body on the outer side of the first bottom wall, thus improving the accuracy of battery box inspection. In this existing structure, the first and second battery compartments in the first box body are arranged side-by-side, and the battery compartments in the second box body are also arranged side-by-side with the first and second battery compartments after assembly. This makes this technical solution difficult to apply in some long and narrow structures that require batteries to be connected in series.

[0004] Furthermore, in traditional structures that require batteries to be connected in series (such as replaceable battery flashlights and toys), the positive and negative terminals of several batteries are directly connected in series. While this method can achieve conductivity, when new and old batteries are mixed, the internal resistance of the old batteries increases, leading to a decrease in the current intensity in the circuit. This affects the normal power output of the new batteries, accelerates the power loss of the new batteries, shortens the overall battery pack life, and reduces the overall performance of the battery pack. It can also easily create a resistance path, causing the battery temperature to rise, and in severe cases, even causing the battery to burn out and catch fire.

[0005] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a battery cell structure for longitudinal connection.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a battery cell structure for longitudinal connection, comprising: a plurality of batteries; a first housing, wherein a receiving groove for accommodating the batteries is recessed along the long axis of the first housing; a plurality of battery cell assemblies, which are spaced apart in the receiving groove along the long axis of the first housing, and each battery cell assembly is disposed between two adjacent batteries; a first electrode is installed on one inner wall of the receiving groove, and a second electrode is installed on one inner wall of the receiving groove, so that the batteries in the receiving groove are electrically connected.

[0008] Furthermore, in the above technical solution, the battery cell assembly includes a first metal sheet installed in the receiving groove and a first metal spring snapped onto the first metal sheet.

[0009] Furthermore, in the above technical solution, the first metal sheet has a first snap-fit ​​portion formed in the middle for snapping the first metal spring.

[0010] Furthermore, in the above technical solution, the receiving groove is provided with several first slots for installing battery cell assemblies, and each first slot is provided with a first positioning hole that penetrates the first box and is used for inserting the first metal sheet.

[0011] Furthermore, in the above technical solution, the first metal sheet is formed with a first snap-fit ​​edge and a second snap-fit ​​edge for engaging with the first slot; the lower end of the first metal sheet is formed with a first positioning part for passing through the first positioning hole and extending downward.

[0012] Furthermore, in the above technical solution, the first box body extends outward at the opening of the receiving groove to form a first edge, and several pairs of first clearance openings are arranged along the long axis direction on the first edge, wherein the number of first clearance openings is the same as the number of batteries.

[0013] Furthermore, in the above technical solution, the first electrode includes a first contact piece, a first contact point disposed on the first contact piece for contacting the battery, and a first connecting portion protruding from the lower end of the first contact piece for connecting to an external wire; the second electrode includes a second contact piece, a second spring fixed on the second contact piece for contacting the battery, and a second connecting portion protruding from the lower end of the second contact piece for connecting to an external wire.

[0014] Furthermore, in the above technical solution, one end of the first box body is formed with a first mounting groove for mounting the first electrode, and the other end of the first box body is formed with a second mounting groove for mounting the second electrode; at least one first limiting protrusion is formed on the first electrode for abutting against the inner wall of the first mounting groove, and at least one second limiting protrusion is formed on the second electrode for abutting against the inner wall of the second mounting groove.

[0015] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art: In this invention, a receiving groove is formed along the long axis of the first housing, and a battery cell assembly is added between adjacent battery cells to separate them. This design is effectively suitable for long and narrow structures. Furthermore, adding the battery cell assembly ensures consistent assembly force for each battery cell, thereby guaranteeing stable power delivery. In addition, compared to traditional structures, the battery cell assembly in this invention effectively prevents direct contact between adjacent battery cells, thus maximizing the performance of the entire battery pack. Appropriate mixing of new and old cells will not affect power delivery stability or the battery pack's lifespan. It is also less prone to creating resistance paths, effectively preventing overheating and fire, and ensuring stable power delivery. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a structural schematic diagram of the first box body in this utility model.

[0018] Figure 3 yes Figure 2 An enlarged view at point A.

[0019] Figure 4 This is a schematic diagram of the structure of the first metal sheet in this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the first electrode in this utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the second electrode in this utility model. Detailed Implementation

[0022] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0023] See Figures 1 to 6 As shown, a battery cell structure for longitudinal connection includes: several batteries 1; a first housing 2, on which a receiving groove 21 for accommodating the batteries 1 is recessed along the long axis; several battery cell assemblies 3, which are spaced apart in the receiving groove 21 along the long axis, and each battery cell assembly 3 is disposed between two adjacent batteries 1; a first electrode 40 is installed on one side of the inner wall of the receiving groove 21, and a second electrode 50 is installed on one side of the inner wall of the receiving groove 21, so that the batteries 1 in the receiving groove 21 are electrically connected.

[0024] In this invention, a receiving groove 21 is formed along the long axis of the first housing 2, and a battery cell assembly 3 is added between adjacent battery cells 1 to separate them. This design is effectively suitable for narrow and elongated structures. Furthermore, the addition of the battery cell assembly 3 ensures that the assembly force of each battery cell 1 is consistent, thereby guaranteeing stable power supply. In addition, compared with traditional structures, the battery cell assembly 3 in this invention can effectively prevent direct contact between adjacent battery cells 1, thus releasing the performance of the entire battery pack. Appropriate mixing of new and old cells will not affect the stability of power supply, will not affect the service life of the battery pack, is less likely to form a resistance path, and can effectively prevent overheating and fire, ensuring the stability of power supply.

[0025] The battery cell assembly 3 includes a first metal plate 31 installed in the receiving groove 21 and a first metal spring 32 snapped onto the first metal plate 31. Here, the first metal plate 31 is used for the positive terminal of the battery 1 to abut, and the first metal spring 32 is used for the negative terminal of the battery 1 to abut. The battery cell assembly 3 can ensure that the installation force of each battery cell 1 is consistent, which can effectively avoid excessive compression of a single battery cell 1 and damage caused by it.

[0026] The first metal sheet 31 has a first engaging portion 310 formed in the middle for engaging the first metal spring 32. Here, the first metal spring 32 is engaged with the first metal sheet 31 through the first engaging portion 310 to achieve mutual conduction and at the same time prevent the first metal spring 32 from accidentally coming out.

[0027] The receiving groove 21 has several first slots 211 for installing the battery cell assembly 3. Each first slot 211 has a first positioning hole 212 that penetrates the first housing 2 and is used for inserting the first metal sheet 31. The first metal sheet 31 has a first engaging edge 311 and a second engaging edge 312 formed on it for engaging with the first slot 211. The lower end of the first metal sheet 31 has a first positioning part 313 that protrudes downward through the first positioning hole 212. Here, the first positioning part 313 passes through the first positioning hole 212 and extends downward to ensure that the first metal sheet 31 will not accidentally fall out of the first slot 211. The first slot 211 is a narrow "I" shape arranged horizontally in the receiving groove 21. The first engaging edge 311 and the second engaging edge 312 abut against the inner walls of the two sides of the first slot 211, so that the first metal sheet 31 is stably engaged in the first slot 211.

[0028] The first housing 2 extends outward from the opening of the receiving groove 21 to form a first edge 22. Several pairs of first clearance openings 221 are arranged along the long axis of the first edge 22, the number of which is the same as the number of batteries 1. Each pair of first clearance openings 221 is positioned at the center of each battery 1 to facilitate easy handling and placement by hand.

[0029] The first electrode 40 includes a first contact piece 401, a first contact point 402 disposed on the first contact piece 401 for contacting the battery 1, and a first connecting portion 403 protruding from the lower end of the first contact piece 401 for connecting an external wire. The second electrode 50 includes a second contact piece 501, a second spring 502 fixed on the second contact piece 501 for contacting the battery 1, and a second connecting portion 503 protruding from the lower end of the second contact piece 501 for connecting an external wire. Here, the first electrode 40 is used to connect to the negative terminal of the battery 1, and the second electrode 50 is used to connect to the positive terminal of the battery 1. In addition, the first connecting portion 403 has a first connecting hole 4031, and the second connecting portion 503 has a second connecting hole 5031 to facilitate the connection of external wires.

[0030] The first housing 2 has a first mounting groove 23 formed at one end for mounting the first electrode 40, and a second mounting groove 24 formed at the other end for mounting the second electrode 50. The first electrode 40 has at least one first limiting protrusion 404 protruding from it for abutting against the inner wall of the first mounting groove 23, and the second electrode 50 has at least one second limiting protrusion 504 protruding from it for abutting against the inner wall of the second mounting groove 24. Here, the first limiting protrusion 404 abuts against the inner wall of the first mounting groove 23, so that the first electrode 40 is stably engaged within the first mounting groove 23; the second limiting protrusion 504 abuts against the inner wall of the second mounting groove 24, so that the second electrode 50 is stably engaged within the second mounting groove 24.

[0031] In summary, in this invention, the first housing 2 has a receiving groove 21 formed along its long axis, and a battery cell assembly 3 is added between adjacent batteries 1 to separate them. This design is effectively suitable for narrow and elongated structures. Furthermore, the addition of the battery cell assembly 3 ensures that the assembly force of each battery 1 remains consistent, thereby guaranteeing stable power supply. In addition, compared with traditional structures, the battery cell assembly 3 in this invention effectively prevents direct contact between adjacent batteries 1, thus releasing the performance of the entire battery pack. Appropriate mixing of new and old batteries will not affect power supply stability or the lifespan of the battery pack. It is less likely to form a resistance path, effectively preventing overheating and fire, and ensuring stable power supply.

[0032] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A battery cell structure for longitudinal connection, characterized in that, include: Several batteries (1); The first box (2) has a recessed groove (21) for accommodating the battery (1) along the long axis direction. The feature is that a number of battery cell assemblies (3) are spaced apart in the receiving groove (21) along the long axis, and each battery cell assembly (3) is disposed between two adjacent batteries (1); a first electrode (40) is installed on one side of the inner wall of the receiving groove (21), and a second electrode (50) is installed on one side of the inner wall of the receiving groove (21) so that the batteries (1) in the receiving groove (21) can be connected.

2. The battery cell structure for longitudinal connection according to claim 1, characterized in that: The battery cell assembly (3) includes a first metal sheet (31) installed in a receiving groove (21) and a first metal spring (32) snapped onto the first metal sheet (31).

3. A battery cell structure for longitudinal connection according to claim 2, characterized in that: The first metal sheet (31) has a first snap-fit ​​part (310) formed in the middle for snapping the first metal spring (32).

4. A battery cell structure for longitudinal connection according to claim 2, characterized in that: The receiving groove (21) has several first slots (211) for installing the battery cell assembly (3), and each first slot (211) has a first positioning hole (212) that penetrates the first box (2) and is used for inserting the first metal piece (31).

5. A battery cell structure for longitudinal connection according to claim 4, characterized in that: The first metal sheet (31) is formed with a first snap-fit ​​edge (311) and a second snap-fit ​​edge (312) for engaging with the first slot (211); the lower end of the first metal sheet (31) is formed with a first positioning part (313) for passing through the first positioning hole (212) and extending downward.

6. A battery cell structure for longitudinal connection according to claim 1, characterized in that: The first box (2) extends outward from the opening of the receiving groove (21) and has a first extension edge (22). Several pairs of first clearance openings (221) are arranged along the long axis on the first extension edge (22), wherein the number of first clearance openings (221) is the same as the number of batteries (1).

7. A battery cell structure for longitudinal connection according to claim 1, characterized in that: The first electrode (40) includes a first contact piece (401), a first contact point (402) disposed on the first contact piece (401) for contacting the battery (1), and a first connecting part (403) protruding from the lower end of the first contact piece (401) for connecting to an external wire; the second electrode (50) includes a second contact piece (501), a second spring (502) fixed on the second contact piece (501) for contacting the battery (1), and a second connecting part (503) protruding from the lower end of the second contact piece (501) for connecting to an external wire.

8. A battery cell structure for longitudinal connection according to any one of claims 1-7, characterized in that: The first box body (2) has a first mounting groove (23) formed at one end for mounting the first electrode (40), and a second mounting groove (24) formed at the other end for mounting the second electrode (50); the first electrode (40) has at least one first limiting protrusion (404) protruding out for abutting against the inner wall of the first mounting groove (23), and the second electrode (50) has at least one second limiting protrusion (504) protruding out for abutting against the inner wall of the second mounting groove (24).

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