CN205248341U - Electric automobile's battery module - Google Patents

Abstract

The utility model discloses a battery module group of an electric vehicle, which comprises a plurality of battery cells, a battery bracket for accommodating the battery cells, a battery bracket matched with the battery bracket, a first manifold assembled in the battery bracket, a battery bracket assembled in the The second manifold of the core bracket, the bolts for fixing the cell bracket and the battery bracket, and the locknuts for fixing the cell to the first manifold and the second manifold. Compared with the prior art, the utility model electric vehicle battery module has the advantages of: 1) stable structure, 2) good current uniformity.

Description

Battery modules for electric vehicles

【Technical field】

The utility model relates to the technical field of new energy batteries, in particular to a battery module of an electric vehicle.

【Background technique】

With the increasingly severe energy and environmental problems, the country's strong support for new energy sources, and the maturity of key technologies for power batteries, power batteries have been widely used in automobiles. In the field of new energy batteries, one of the key technologies for the development of new energy vehicles is the power battery. The performance of the battery module affects the performance of the battery pack and even the entire electric vehicle to a large extent. At present, the structure of some battery modules is not strong enough, and the current distribution is not uniform enough.

In view of this, it is necessary to provide a new battery module for electric vehicles to overcome the deficiencies of the prior art.

【Content of utility model】

The purpose of the utility model is to provide a battery module for an electric vehicle with a stable structure and good current uniformity.

In order to achieve the above object, the utility model provides a battery module for an electric vehicle, which includes a plurality of battery cells, a battery holder for accommodating the battery cells, a battery holder for matching with the battery holder, and a first bus assembly assembled in the battery holder. plate, the second manifold assembled on the cell bracket, the bolts for fixing the cell bracket and the battery bracket, and the locknuts for fixing the cell to the first manifold and the second manifold.

As an improvement of the battery module of the electric vehicle of the utility model, the battery bracket includes a main body, a plurality of receiving cavities recessed from the main body for accommodating battery cells, and a first positioning column extending from the main body.

As an improvement of the battery module of the electric vehicle of the present invention, the cell support includes a body, a plurality of through holes for accommodating cells, and a second positioning column extending from the body, the second positioning column is connected to the The first positioning post fits.

As an improvement of the battery module of the electric vehicle of the utility model, the first manifold and the second manifold are made of composite PCB material.

As an improvement of the battery module of the electric vehicle of the present invention, a fuse is provided at the connection between the first manifold, the second manifold and the cell.

As an improvement of the battery module of the electric vehicle of the present invention, it also includes a temperature probe accommodated in the battery bracket.

Compared with the prior art, the utility model electric vehicle battery module has the advantages of: 1) stable structure, 2) good current uniformity.

【Description of drawings】

FIG. 1 is a three-dimensional assembly diagram of a battery module of an electric vehicle of the present invention.

Fig. 2 is a three-dimensional exploded view of the battery module of the electric vehicle of the present invention.

Fig. 3 is a partial assembly diagram of the battery module of the electric vehicle of the present invention.

FIG. 4 is an exploded view of FIG. 3 .

【detailed description】

In order to make the purpose, technical solution and beneficial technical effects of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementations described in this specification are only for explaining the utility model, not for limiting the utility model.

As shown in Figures 1 and 2, the battery module 100 of the electric vehicle of the present invention includes a plurality of battery cells 10, a battery holder 21 for accommodating the battery cells 10, a battery holder 22 matched with the battery holder 21, and a battery holder 22 assembled in the battery holder. 21 of the first manifold 31 , the second manifold 32 assembled on the cell support 22 , the bolt 4 , the locknut 5 and the temperature probe 6 . The battery holder 21 includes a body 210 , a plurality of accommodating cavities 211 recessed from the body 210 for accommodating the battery cells 10 , and a plurality of first positioning posts 212 extending upward from the body 210 . The cell support 22 includes a body 220 , a plurality of through holes 221 for receiving the cells 10 , and a second positioning column 222 extending downward from the body. The cell support 22 is assembled on the battery support 21 to hold the battery 10 together. The first positioning post 212 cooperates with the second positioning post 222 . The locknut 5 fixes the cell 10 to the first manifold 31 and the second manifold 32 .

As shown in FIG. 3 and FIG. 4 , the battery holder 21 includes a groove 213 recessed from the body 210 and extending along intervals of a plurality of receiving cavities 211 , and the temperature probe 6 is accommodated in the groove 213 . The groove 213 includes a first groove 2131 located near the center of the battery holder 21 , a second groove 2132 connected to the first groove 2131 and extending to the edge of the battery holder 21 , and a second groove 2132 connected to the second groove 2132 and extending through the edge of the battery holder 21 The third slot 2133 of the first slot 2132 communicates with the receiving cavity 211 near the center of the battery holder 21 . The temperature probe 6 includes a probe part 61 , an electric wire 62 connected to the probe part 61 at one end, and a connector 63 connected to the other end of the electric wire 62 . The probe part 61 is accommodated in the first groove 2131, the electric wire 62 is accommodated in the second groove 2132 and extends to the edge of the battery holder 21 along the second groove 2132, and the connector 63 is accommodated in the third groove 2133 so that it can be connected with the outside connect. The temperature probe 6 extends into the center of the battery module, so that the temperature probe 6 can detect the internal temperature of the battery module.

During manufacture, first place the battery cell 10 close to the center of the battery holder 21 on the battery holder 21, put the probe part 61 of the temperature probe 6 into the first groove 2131, and use glue with good thermal conductivity and high viscosity to place the The probe part 61 is fixed on the battery holder 21 , the wire 62 is led to the edge of the battery holder 21 along the second groove 2132 , and the connector 63 is put into the third groove 2133 . Then put the remaining cells 10 into the battery bracket 21 , assemble the cell bracket 22 onto the battery bracket 21 , and fix the cell bracket 22 and the battery bracket 21 by bolts 4 . The first manifold 31 and the second manifold 32 are respectively assembled on the battery bracket 21 and the cell bracket 22 , and each battery cell 10 is assembled to the first manifold 31 and the second manifold 32 through the locknut 5 . Both the first manifold 31 and the second manifold 32 are made of composite PCB material, and a fuse is provided at the connection with each cell 10 , so that each cell 10 has overcurrent protection. In other implementation manners, the battery cell 10 may also be connected to the first manifold 31 and the second manifold 32 by ultrasonic waves.

The structure of the battery module of the electric vehicle of the utility model is stable, the current distribution is uniform, and the layout of the temperature probe is reasonable.

The battery module of the electric vehicle of the utility model is not limited to the description in the description and the implementation, so those familiar with the field can easily realize other advantages and modifications, so without departing from the claims and the equivalent scope Without limiting the spirit and scope of the general concepts, the invention is not limited to the specific details, representative apparatus, and illustrative examples shown and described herein.

Claims (6)

1. a battery modules for electric automobile, is characterized in that: it comprises multiple battery cores, accommodate battery coreBattery bracket, the battery core support coordinating with battery bracket, be assembled in the first cylinder manifold, the assembling of battery bracketIn the bolt of the second cylinder manifold of battery core support, fixing battery core support and battery bracket and battery core is fixed onThe stop nut of the first cylinder manifold, the second cylinder manifold.

2. the battery modules of electric automobile as claimed in claim 1, is characterized in that: described battery bracketComprise body, from body recess and accommodate multiple host cavities of battery core and from body extend the first locating dowel.

3. the battery modules of electric automobile as claimed in claim 2, is characterized in that: described battery core supportThe second locating dowel that comprises body, accommodates multiple through holes of battery core, extends from body, described the second locating dowelCoordinate with described the first locating dowel.

4. the battery modules of electric automobile as claimed in claim 1, is characterized in that: described the first cylinder manifold,The second cylinder manifold is made up of compound PCB material.

5. the battery modules of electric automobile as claimed in claim 1, is characterized in that: described the first cylinder manifold,The second cylinder manifold and battery core junction are provided with fuse.

6. the battery modules of electric automobile as claimed in claim 1, it also comprises and is contained in described battery bracketTemp probe.