CCS used in new energy battery connection system

Abstract

The utility model discloses a CCS used in a new energy battery connection system. The CCS comprises a bar piece and an insulating film, and the insulating film covers the bar piece. A plastic sheet is arranged below the chip, the insulating film above the chip and the plastic sheet below the chip are connected together in a hot melting manner in a laser manner, and the plastic sheet is fixed on the battery blade in a gluing manner; a left lug and a right lug are respectively designed at the upper end of the sheet, strip-shaped holes are respectively formed in the left lug and the right lug, and the insulating films covering the left lug and the right lug are in contact with the plastic sheet through the strip-shaped holes by a laser beam and are hot-melted together with the plastic sheet. According to the utility model, through the strip-shaped holes on the left lug and the right lug of the sheet, the insulating film and the plastic sheet are hot-melted together under the action of laser heat energy, and the sheet is wrapped by the hot-melted insulating film and plastic sheet, so that the connection is firmer; and meanwhile, the insulating film is used for replacing a plastic structural member, so that the cost is greatly reduced, and the light weight of the product is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a CSS used in a new energy battery connection system. Background Art

[0002] As an important component of the battery module, the bar has multiple functions. It can not only connect battery cells, but also adjust and control the current distribution, temperature conduction and battery protection of the battery cells. Usually, the new energy vehicle connection component CCS (Cells Contact System) is mainly composed of plastic structural parts and bar pieces, and then the parts are riveted together by hot riveting. However, since plastic structural parts need to be invested in molds for production, the mold cost remains high, the mold production cycle is long, and additional hot riveting equipment is required for use. The mold cost ultimately needs to be apportioned to the cost of a single plastic part, resulting in a high proportion of the cost of plastic structural parts in the entire CCS.

[0003] In addition, new energy vehicles currently pursue lightweighting, and plastic structural parts are relatively bulky and do not meet the demand for lightweighting. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a CCS for a new energy battery connection system to achieve the stability of the connection between batteries and the requirements of low cost and light weight.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: a CCS for a new energy battery connection system, comprising a bar sheet and an insulating film, wherein the insulating film covers the bar sheet;

[0006] A plastic sheet is provided under the bar sheet, and the insulating film above the bar sheet and the plastic sheet under the bar sheet are hot-melted and connected together by laser;

[0007] The plastic sheet is fixed on the battery blade by gluing.

[0008] Preferably, a left ear and a right ear are respectively designed at the upper end of the bar, and a strip-shaped hole is respectively opened on the left ear and the right ear.

[0009] Preferably, the insulating film covers the strip-shaped holes on the left ear and the right ear, and the laser beam brings the insulating film covering the left ear and the right ear into contact with the plastic sheet through the strip-shaped holes and heat-melts the insulating film with the plastic sheet.

[0010] Preferably, two strip-shaped holes are respectively provided on the left ear and the right ear of the tab.

[0011] Preferably, the strip-shaped hole is opened horizontally and is parallel to the left ear and the right ear.

[0012] Preferably, the insulating film is made of PET material.

[0013] Preferably, the blade is fixedly connected to the battery blade by welding.

[0014] The beneficial effects of the utility model are:

[0015] (1) The utility model designs a CCS for use in a new energy battery connection system, comprising a tab, an insulating film covering the tab, and a plastic sheet located below the tab. The insulating film is heat-fused together with the plastic sheet under the action of laser thermal energy by opening transverse strip holes on the left and right ears of the tab, thereby wrapping the tab therein, so that the integrated connection effect is very strong. The tab can also be stably fixed to the plastic sheet without the need for plastic structural parts; at the same time, the tab and the battery blade are welded together by welding rods, which can stably fix the tab horizontally and in the upper and lower positions, and play a limiting role on the tab, so that there is no risk of contact between the tabs.

[0016] (2) The utility model designs a CCS for use in a new energy battery connection system. By replacing the plastic structural parts in the existing components with insulating films, the problems of high cost and bulkiness of the plastic structural parts are solved, thereby improving the lightweight of the product and reducing the cost.

[0017] (3) The utility model is designed to use a CCS in a new energy battery connection system, wherein the insulating film is made of PET material, which is a thermoplastic polyester. It is not only low in cost but also has good physical properties and is environmentally friendly. The use of the insulating film of this material does not require additional glue. The insulating film and the plastic sheet are only melted together by laser thermal energy to achieve a fixed connection between the bar sheet and the plastic sheet. The bar sheet is wrapped in the insulating film and the connection is firm. The laser welding speed is fast and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a CCS used in a new energy battery connection system designed by the utility model;

[0019] Figure 2 It is a schematic diagram of the structure of the bar sheet, the insulating film, and the plastic sheet shown in the preferred embodiment;

[0020] Figure 3 is a schematic diagram of the strip-shaped holes on the bar sheet shown in the preferred embodiment;

[0021] The markings of the components in the accompanying drawings are as follows:

[0022] 1. Battery chip; 11. Left ear; 12. Right ear; 13. Strip hole; 2. Insulating film; 3. Plastic sheet; 4. Battery blade. DETAILED DESCRIPTION

[0023] 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.

[0024] Example:

[0025] This embodiment introduces a structure of a CCS used in a new energy battery connection system. Figure 1 , 2 As shown, Figure 1 This is a schematic diagram of the structure of a CCS used in a new energy battery connection system designed by the utility model. Figure 2 It is a schematic diagram of the structure of the bar sheet, insulating film, and plastic sheet shown in the preferred embodiment.

[0026] A CCS used in a new energy battery connection system comprises: a bar sheet 1 and an insulating film 2, wherein the insulating film 2 covers the bar sheet 1; a plastic sheet 3 is arranged below the bar sheet 1, and the insulating film 2 above the bar sheet 1 and the plastic sheet 3 below the bar sheet are hot-melt-connected together by laser; the plastic sheet 3 is fixed to a battery blade 4 by gluing.

[0027] In a preferred embodiment, if Figure 3 As shown, Figure 3 Schematic diagram of the strip-shaped hole on the bar sheet in the preferred embodiment. A left ear 11 and a right ear 12 are respectively designed at the upper end of the bar sheet 1, and a strip-shaped hole 13 is respectively opened on the left ear 11 and the right ear 12.

[0028] Furthermore, the insulating film 2 covers the strip holes 13 of the left ear 11 and the right ear 12 , and the laser beam brings the insulating film 2 covering the left ear 11 and the right ear 12 into contact with the plastic sheet 3 through the strip holes 13 , and heat-melts the insulating film 2 with the plastic sheet 3 .

[0029] In this embodiment, the two long strip holes make it easy for the laser to penetrate the insulating film of the PET material directly to the plastic sheet underneath. The heat energy can melt the insulating film and the plastic sheet underneath at the same time, so that the PET film and the plastic sheet are tightly connected together after hot melting, and the plastic sheet is wrapped therein, achieving an integrated connection effect and a more stable connection.

[0030] Furthermore, two strip-shaped holes 13 are respectively provided on the left ear 11 and the right ear 12 of the tab 1. The strip-shaped holes 13 are opened horizontally and are parallel to the left ear 11 and the right ear 12.

[0031] In a preferred embodiment, the insulating film 2 is made of PET material. PET material is a thermoplastic polyester, which is not only low in cost but also has good physical properties and is environmentally friendly. The use of this insulating film does not require additional glue. The insulating film and the plastic sheet are only melted together by laser thermal energy to achieve a fixed connection between the bar sheet and the plastic sheet. The bar sheet is wrapped in the hot-melt insulating film and the plastic sheet, and the connection is firm. The laser welding speed is fast and the efficiency is high.

[0032] Furthermore, the bar 1 is fixedly connected to the battery blade 4 by welding. Two welding rods are used to reinforce the connection between the bar and the battery blade in the middle of the bar. After welding, the bar is well fixed in horizontal and vertical positions, which has a good limiting effect on the bar and prevents the risk of adjacent bar blades touching each other.

[0033] 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.

[0034] The CCS designed in this embodiment not only serves as a new energy battery connection system to connect the battery cells and achieve stable current transmission, but also achieves the requirements of low cost and lightweight products by using PET film instead of plastic structural parts.

[0035] 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 for a new energy battery connection system, characterized in that: It comprises a bar sheet (1) and an insulating film (2), wherein the insulating film (2) covers the bar sheet (1); A plastic sheet (3) is provided below the bar sheet (1), and the insulating film (2) above the bar sheet (1) and the plastic sheet (3) below the bar sheet (1) are thermally melted together by laser; The plastic sheet (3) is fixed on the battery blade (4) by gluing.

2. A CCS for use in a new energy battery connection system according to claim 1, characterized in that: The upper end of the flap (1) is respectively designed with a left ear (11) and a right ear (12), and a strip-shaped hole (13) is respectively opened on the left ear (11) and the right ear (12).

3. A CCS for use in a new energy battery connection system according to claim 2, characterized in that: The insulating film (2) covers the strip-shaped holes (13) of the left ear (11) and the right ear (12), and the laser beam brings the insulating film (2) covering the left ear (11) and the right ear (12) into contact with the plastic sheet (3) through the strip-shaped holes (13), and heat-melts the insulating film (2) with the plastic sheet (3).

4. A CCS for use in a new energy battery connection system according to claim 2 or 3, characterized in that: The strip-shaped holes (13) are respectively provided on the left ear (11) and the right ear (12) of the flap (1).

5. A CCS for use in a new energy battery connection system according to claim 4, characterized in that: The strip-shaped hole (13) is opened horizontally and is parallel to the left ear (11) and the right ear (12).

6. The CCS used in the new energy battery connection system according to claim 1, characterized in that: The insulating film (2) is made of PET material.

7. The CCS used in the new energy battery connection system according to claim 1, characterized in that: The middle part of the blade (1) is fixedly connected to the battery blade (4) by welding.

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