CN219553835U

CN219553835U - Power battery sampling integrated row

Info

Publication number: CN219553835U
Application number: CN202320748932.9U
Authority: CN
Inventors: 贺华明; 卢兵; 王田保; 贺建华
Original assignee: Zhejiang Xinfuer Electronics Co ltd
Current assignee: Zhejiang Xinfuer Electronics Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-08-18
Anticipated expiration: 2033-04-07

Abstract

The utility model discloses a power battery sampling integrated row, which comprises a PCB support plate, a power battery sampling integrated row and a power battery sampling integrated row, wherein the PCB support plate comprises a main body part and mounting parts respectively integrally extending out of two sides of the main body part, and the main body part is provided with at least one voltage acquisition circuit and at least one temperature acquisition circuit; a plurality of mounting grooves penetrate through the upper surface and the lower surface of the mounting part; the connector is electrically connected to the PCB support plate; and a plurality of bus bars respectively fixed in the corresponding mounting grooves, wherein each bus bar is electrically connected with the voltage acquisition circuit and/or the temperature acquisition circuit; each busbar is provided with a sampling surface which is contacted with the power battery, and the sampling surface is exposed out of the lower end opening of the mounting groove. Compared with the traditional bus bar and PCB support plate which are fixed by bonding through an insulating film, the bus bar is fixed in the mounting groove, so that the insulating film is omitted, the manufacturing process is reduced, and the production cost is saved.

Description

Power battery sampling integrated row

Technical Field

The utility model relates to the technical field of power battery sampling rows, in particular to a power battery sampling integrated row.

Background

With the rapid development of new energy industry, the modularization and the simplification of the power battery are more and more important, the safety, the reliability and the consistency of the power battery are affected, and each part of the battery module is required to be continuously explored and optimized.

The data of the cell temperature/cell voltage of the battery module is monitored by sampling an integrated busbar (CCS). The existing integrated busbar is generally divided into two types, one is provided with a plastic bracket, and the other is provided with a PCB instead of the plastic bracket; the integrated busbar with the plastic bracket is complex in manufacturing process and high in cost. The integrated busbar with the PCB instead of the plastic bracket needs to be additionally provided with an insulating film to bond and fix the PCB and the busbar, and compared with enterprises, the cost is slightly high.

Disclosure of Invention

In view of the above, the present utility model aims at overcoming the drawbacks of the prior art, and its primary objective is to provide a power battery sampling integrated busbar, which solves the problem of high cost of the existing integrated busbar.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a power battery sampling integrated row comprises a plurality of sampling integrated rows,

the PCB support plate comprises a main body part and mounting parts which are respectively integrally extended from two sides of the main body part, wherein the main body part is provided with at least one voltage acquisition circuit and at least one temperature acquisition circuit; a plurality of mounting grooves penetrate through the upper surface and the lower surface of the mounting part;

the connector is electrically connected to the PCB support plate; the method comprises the steps of,

the plurality of bus bars are respectively fixed in the corresponding mounting grooves, and each bus bar is electrically connected with the voltage acquisition circuit and/or the temperature acquisition circuit; each busbar is provided with a sampling surface which is contacted with the power battery, and the sampling surface is exposed out of the lower end opening of the mounting groove.

In one embodiment, the busbar is shaped to fit into the mounting slot, and the busbar is mounted in the mounting slot in a tight fit.

In one embodiment, the busbar is welded to the voltage acquisition line via the voltage acquisition tab.

In one embodiment, the busbar is welded to the temperature acquisition line by the temperature acquisition tab.

In one embodiment, a temperature sensor is arranged on the temperature acquisition circuit, an avoidance groove is formed in the position of the temperature acquisition sheet corresponding to the temperature sensor in a punching mode, the temperature sensor is located in the avoidance groove, a protection arm is formed by bending the inner wall of the avoidance groove upwards, and the top surface of the protection arm is higher than the top surface of the temperature sensor.

In one embodiment, the plurality of bus bars includes a positive output bar, a negative output bar, and three sampling bars; correspondingly, the number of the mounting grooves is five, and the positive electrode output row, the negative electrode output row and the sampling row are respectively fixed in the corresponding mounting grooves.

In one embodiment, the outer sides of the positive electrode output row and the negative electrode output row are punched to form a connecting part for connecting the battery pack and the battery pack in series/parallel, the connecting part comprises two connecting arms which are punched and bent on the outer sides of the positive electrode output row or the negative electrode output row, and connecting plates connected to the tail ends of the two connecting arms, and connecting holes are formed in the upper surface and the lower surface of the connecting plates in a penetrating mode.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, and in particular, the technical scheme can be as follows:

1. by using the PCB support plate to integrate the circuit and the support, the complex assembly process of the CCS and the structure of the CCS, which are required to be combined with the additional FPC/wire harness collection, of the traditional plastic support are simplified, and the simple and convenient assembly integrated design is realized. Because the bracket and the FPC are reduced, the total cost of materials and processing is greatly reduced, the manufacturing process is greatly reduced, and the production efficiency is greatly improved.

2. Compared with the traditional bus bar and PCB support plate which are fixed by bonding through an insulating film, the bus bar is fixed in the mounting groove, so that the insulating film is omitted, the manufacturing process is reduced, and the production cost is saved.

In order to more clearly illustrate the structural features and efficacy of the present utility model, the present utility model will be described in detail below with reference to the accompanying drawings and examples.

Drawings

FIG. 1 is a perspective view of an integrated row provided by an embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial enlarged view at B in FIG. 1;

fig. 4 is an exploded view of an integrated row provided by an embodiment of the present utility model.

Reference numerals:

10. PCB support plate 11, main body

12. Mounting portion 121 and mounting groove

20. Connector 30, bus bar

31. Positive electrode output row

32. Negative electrode output row 33, sampling row

301. Connection portion 311 and connection arm

312. Connection plate 313 and connection hole

40. Voltage acquisition sheet 50, temperature acquisition sheet

51. Avoidance groove 52 and protection arm

60. A temperature sensor.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Referring to fig. 1-4, the present utility model provides an integrated power cell sampling array, comprising,

the PCB support plate 10 includes a main body 11, and mounting portions 12 integrally extended from both sides of the main body 11, and a plurality of mounting grooves 121 are formed on upper and lower surfaces of the mounting portions 12. At least one voltage acquisition circuit and at least one temperature acquisition circuit are etched on the main body part 11, and fuses are etched on each voltage acquisition circuit and each temperature acquisition circuit so as to ensure safe operation of the sampling integrated row. The PCB support plate 10 integrates a circuit and CCS (integrated busbar) support, simplifies the complex assembly process of CCS and the structure of CCS of the traditional plastic support, which needs to be combined with additional collection FPCs/wire harnesses, and realizes a simple and convenient assembly integrated design. The total cost of materials and processing is reduced by more than 30% due to the reduction of the bracket and the FPC, and the manufacturing process is greatly reduced, thereby improving the production efficiency by 70%.

Alternatively, the PCB support plate 10 uses an FR4 circuit board.

And the connector 20 is electrically connected to the circuit of the PCB support plate, and the connector 20 is used for transmitting signals.

The plurality of bus bars 30 are respectively fixed in the corresponding mounting grooves 121, and each bus bar 30 is electrically connected with the voltage acquisition line and/or the temperature acquisition line. Each busbar 30 has a sampling surface in contact with the power cell, and the sampling surface 301 is exposed to the lower end opening of the mounting groove 121. Compared with the traditional bus bar and PCB bracket plate which are adhered and fixed by using an insulating film, the bus bar 30 is fixed in the mounting groove 121, the utility model omits the insulating film, reduces the manufacturing process and saves the production cost.

Alternatively, the busbar 30 is a busbar aluminum.

In one embodiment, the profile of the buss bar 30 is adapted to the mounting groove 121, and the buss bar 30 is tightly mounted in the mounting groove 121 by machine or by hand. The bus bar 30 is fixed in the mounting groove 121 by a tight fitting manner instead of the insulating film bonding manner, which is a great cost saving.

The busbar 30 is welded to the voltage acquisition line by a voltage acquisition tab 40. Optionally, the voltage collecting plate 40 is a nickel collecting plate.

The busbar 30 is welded to the temperature acquisition line by a temperature acquisition tab 50. Be equipped with temperature sensor 60 on the temperature acquisition circuit, temperature acquisition piece 50 corresponds the die-cut groove 51 of dodging that is formed with in temperature sensor 60 position, and temperature sensor 60 is located dodging groove 51, and dodges the upward bending of inslot 51 inner wall and be formed with protection arm 52, and the top surface of protection arm 52 is higher than temperature sensor 60's top surface, and protection arm 52 effectively prevents that the foreign object from colliding temperature sensor 60 to play the guard action to temperature sensor 60.

The plurality of bus bars 30 includes a positive output bar 31, a negative output bar 32, and three sampling bars 33; correspondingly, the number of mounting grooves 121 is five, and the positive electrode output row 31, the negative electrode output row 32 and the sampling row 33 are respectively fixed in the corresponding mounting grooves 121.

The outer side surfaces of the positive electrode output row 31 and the negative electrode output row 32 are punched to form a connecting part 301 for connecting the battery packs in series/parallel, the connecting part 301 comprises two connecting arms 311 which are punched and bent on the outer side surface of the positive electrode output row 31 or the outer side surface of the negative electrode output row 32, and connecting plates 312 connected to the tail ends of the two connecting arms 311, and connecting holes 313 are formed in the upper surface and the lower surface of the connecting plates 312 in a penetrating mode.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides an integrated row of power battery sampling which characterized in that: comprising the steps of (a) a step of,

2. The integrated row of power cell samples of claim 1, wherein: the appearance of busbar with the mounting groove looks adaptation, the busbar close-fitting install in the mounting groove.

3. The integrated row of power cell samples of claim 2, wherein: and the busbar is connected with the voltage acquisition line through a voltage acquisition sheet in a welding way.

4. The integrated row of power cell samples of claim 2, wherein: and the busbar is connected with the temperature acquisition circuit through a temperature acquisition sheet in a welding way.

5. The integrated row of power cell samples of claim 4, wherein: be equipped with temperature sensor on the temperature acquisition circuit, the die-cut groove of dodging that is formed with in temperature acquisition piece corresponds temperature sensor position, temperature sensor is located dodge the groove, just dodge the inslot wall and upwards bend and be formed with the protection arm, the top surface of protection arm is higher than temperature sensor's top surface.

6. The integrated row of power cell samples of claim 1, wherein: the plurality of bus bars comprise an anode output bar, a cathode output bar and three sampling bars; correspondingly, the number of the mounting grooves is five, and the positive electrode output row, the negative electrode output row and the sampling row are respectively fixed in the corresponding mounting grooves.

7. The integrated row of power cell samples of claim 6, wherein: the positive electrode output row and the negative electrode output row are respectively punched and cut to form a connecting part for connecting the battery pack and the battery pack in series/parallel, the connecting part comprises two connecting arms which are punched and bent on the outer side face of the positive electrode output row or the outer side face of the negative electrode output row, and a connecting plate connected to the tail ends of the two connecting arms, and connecting holes penetrate through the upper surface and the lower surface of the connecting plate.