CCS chip structure with insurance function

Abstract

The utility model discloses a CCS chip structure with a safety function, comprising a chip and an arc extinguishing device, the arc extinguishing device is installed on the chip, and the arc extinguishing device and the chip are locked through a rivet; a piece isthmus is designed on the piece. Through the structural design, when fault current passes through, the temperature at the isthmus of the bar piece rises rapidly, the bar piece is fused, current arcing occurs in the fusing process of the bar piece, and at the moment, the arc extinguishing device made of the high-temperature-resistant and arc-resistant material plays a role in blocking the influence of electric arc on adjacent parts, namely, after the isthmus of the bar piece is fused, the arc extinguishing effect of the bar piece is improved. And the fault current is cut off under the action of the arc extinguishing device, so that the effect of protecting the whole battery assembly and the battery pack is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a CSS bar structure with a safety function. Background Art

[0002] As an important component of the battery module, the battery cell has multiple functions. It can not only connect the battery cells, but also adjust and control the current distribution, temperature conduction and battery protection of the battery cells. Therefore, the structure and quality of the battery cell are crucial to improving the performance and safety of the battery module, which can not only prolong the life of the entire battery module, but also provide better protection for the application of the battery module.

[0003] As the capacity of new energy vehicle systems increases, the fault current will also increase accordingly with the increase in operating current. Once a large circuit fault occurs, it is very likely to cause the entire vehicle current component and battery pack to burn out. However, the conventional new energy vehicle connection component CCS (Cells Contact System) chip does not have a fault current fuse structure design, and the safety is not high. Therefore, for safety reasons, it is necessary to add a large current fuse design to the connection component so that the current can be cut off by fusing the fuse path within a limited time to protect the entire battery component and battery pack from burning or even exploding.

[0004] Therefore, how to provide a CCS bar with its own insurance function to prevent the fault current from passing through the bar and causing damage to the battery components and battery pack, resulting in combustion or even explosion accidents. Utility Model Content

[0005] The main technical problem solved by the utility model is to provide a CCS bar structure with a safety function to improve the safety of new energy vehicle battery components and battery packs.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: a CCS bar structure with a safety function, comprising: a bar and an arc extinguishing device, wherein the arc extinguishing device is installed on the bar, and the arc extinguishing device is locked with the bar by rivets;

[0007] The bar piece is designed with a bar piece gorge.

[0008] Preferably, the number of the Bapanxia diameters is set to two, and the arc extinguishing device is installed at the Bapanxia diameters.

[0009] Preferably, the arc extinguishing device comprises an upper cover and a lower cover, and the upper cover and the lower cover are fixed by rivets.

[0010] Preferably, the lower cover is provided with a mounting groove having the same size as the width of the bar.

[0011] Preferably, the arc extinguishing device further comprises a sealant, and the sealant is arranged between the contact between the upper cover and the bar piece.

[0012] Preferably, the upper cover and the lower cover are composed of a glass fiber reinforced polyimide substrate.

[0013] The beneficial effects of the utility model are:

[0014] The utility model designs a CCS bar structure with a safety function. The bar is designed to have two gorge paths, and an arc extinguishing device is arranged and installed at the gorge path of the bar. When a fault current passes through, the temperature at the gorge path of the bar rises rapidly, causing the bar to melt at high temperature. During the melting process of the bar, current arcing will occur. At this time, the arc extinguishing device made of high-temperature resistant and arc-resistant material will play a role in blocking the influence of the arc on adjacent parts. That is, after the gorge path of the bar is melted, the fault current is cut off under the action of the arc extinguishing device, thereby well protecting the entire battery assembly and the battery pack from burning or even exploding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a three-dimensional structural diagram of the CCS bar structure with a safety function designed by the utility model;

[0016] Figure 2 is a schematic diagram of the structure of the Ba Pian and Ba Pian Gorge;

[0017] Figure 3 is an exploded schematic diagram of the CCS bar shown;

[0018] The markings of the components in the accompanying drawings are as follows:

[0019] 1. Bar plate; 11. Bar plate diameter; 2. Arc extinguishing device; 21. Upper cover; 22. Lower cover; 23. Mounting groove; 24. Sealant. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0021] Example:

[0022] This embodiment introduces a structure of a CCS bar with a safety function. Figure 1 As shown, Figure 1 It is a three-dimensional structural schematic diagram of a CCS bar with a safety function designed by the utility model.

[0023] A CCS flap structure with a safety function comprises: a flap 1 and an arc extinguishing device 2, wherein the arc extinguishing device 2 is mounted on the flap 1, and the arc extinguishing device 2 is locked to the flap 1 by rivets.

[0024] In a preferred embodiment, if Figure 2 As shown, Figure 2 The bar 1 is designed with a bar gap 11, and the arc extinguishing device 2 is installed at the bar gap 11.

[0025] In a preferred embodiment, there are two baffle gorge paths 11. The structure of two baffle gorge paths is designed to reduce the degree of fusing when the baffle is melted by a fault current, so as to reduce the harm caused by the fault current.

[0026] In this embodiment, the design of the two gables is changed into a design of two gables, which, through simulation calculation, can meet both the temperature rise safety of the normal operating current and the performance of fusing within 10S under a large fault current, so that the fault current can be cut off by fusing the fuse gable within a limited time, thereby achieving protection for the entire battery assembly and battery pack.

[0027] In a preferred embodiment, if Figure 3 As shown, Figure 3 2 is a schematic diagram of the exploded view of the CCS bar. The arc extinguishing device 2 comprises an upper cover 21 and a lower cover 22, and the upper cover 21 and the lower cover 22 are fixed by rivets.

[0028] Furthermore, the lower cover 22 is provided with a mounting groove 23 having the same width as the bar piece 1 . During installation, the bar piece is placed in the mounting groove 23 , and then the upper cover 21 is correspondingly mounted on the lower cover 22 .

[0029] Furthermore, the arc extinguishing device 2 also includes a sealant 24, and the sealant 24 is arranged between the upper cover 21 and the tab 1 to improve the installation sealing between the arc extinguishing device and the tab.

[0030] In a preferred embodiment, the upper cover 21 and the lower cover 22 are made of a glass fiber reinforced polyimide substrate, which has high resistance to high temperature and arc.

[0031] In this embodiment, the bar is made of aluminum bar material, which can effectively collect and transmit current, and has conductivity, stability and reliability to support the normal operation of the battery and improve the overall performance.

[0032] Through the design of the above-mentioned bar structure, when the fault current passes through, the temperature at the bar gap diameter rises rapidly, and the temperature is about to reach the melting temperature of the aluminum bar within 10S, causing the bar to melt at high temperature. In the process of the bar melting, current arcing will be generated. At this time, the arc extinguishing device at the bar gap diameter will block the generated arc in the arc extinguishing device, and will not affect the adjacent parts. The fault current will be blocked by the arc extinguishing device, thereby protecting the entire battery assembly and battery pack from burning or even explosion.

[0033] The CCS bar structure designed in this embodiment realizes that the bar itself can have a safety function to block the fault current from damaging the entire battery assembly and battery pack.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A CCS bar structure with insurance function, characterized in that: include: A bar plate (1) and an arc extinguishing device (2), wherein the arc extinguishing device (2) is mounted on the bar plate (1), and the arc extinguishing device (2) is locked to the bar plate (1) by means of rivets; The bar plate (1) is designed with a bar plate gorge (11).

2. The CCS bar structure with a safety function according to claim 1, characterized in that: The Bapanxia diameter (11) is arranged as two, and the arc extinguishing device (2) is installed at the Bapanxia diameter (11).

3. The CCS bar structure with a safety function according to claim 1, characterized in that: The arc extinguishing device (2) comprises an upper cover (21) and a lower cover (22), and the upper cover (21) and the lower cover (22) are fixed by rivets.

4. The CCS bar structure with insurance function according to claim 3, characterized in that: The lower cover (22) is provided with a mounting groove (23) having the same width as the bar (1).

5. The CCS bar structure with a safety function according to claim 3, characterized in that: The arc extinguishing device (2) further comprises a sealant (24), wherein the sealant (24) is arranged between the contact between the upper cover (21) and the bar sheet (1).

6. The CCS bar structure with a safety function according to claim 4, characterized in that: The upper cover (21) and the lower cover (22) are composed of a glass fiber reinforced polyimide substrate.

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