CN213752939U

CN213752939U - Insulation shield system for battery system

Info

Publication number: CN213752939U
Application number: CN202022864568.1U
Authority: CN
Inventors: 易凡; 蒋意松; 高洪宾
Original assignee: Vitesco Automotive Tianjin Co Ltd
Current assignee: Vitesco Automotive Tianjin Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-07-20
Anticipated expiration: 2030-12-03

Abstract

The utility model relates to an insulating protection casing system (100) for battery system, this insulating protection casing system (100) is including electrically insulating protection casing (101), this protection casing (101) are placed in inside busbar (1) top of battery module and are covered inside busbar (1) of battery module completely, keep apart inside busbar (1) of battery module with total burden output bar (3) and shunt (4) of battery system, and this insulating protection casing system (100) still includes fastener, this fastener is used for fastening protection casing (101) to battery module support (2) that are used for bearing the weight of inside busbar (1) of battery module. By means of the protective cover (101) according to the utility model discloses an electric insulation between battery module inside busbar (1) and battery system's total negative output row (3) and shunt (4) can be realized effectively, the internal short circuit of battery system is prevented.

Description

Insulation shield system for battery system

Technical Field

The utility model belongs to the technical field of the battery and specifically relates to an insulating protection casing system for battery system is related to.

Background

In a 48V battery system, the total negative output bar and shunt need to pass directly over the internal buss bars of the battery module for emi immunity design. However, this is liable to cause an internal short circuit of the battery system. Therefore, it is necessary to achieve effective electrical insulation protection between the total negative output bar and the shunt and the battery module internal bus bar to prevent internal short circuits of the battery system.

In addition, the overall negative output row of the battery system is arranged in a cantilever fashion and the shunt is placed on the overall negative output row, which is prone to structural failure in vibration. Therefore, there is a need for effective support of the total negative output row and splitter from a structural standpoint to prevent structural failure in vibration.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the present invention is to provide an insulating protective cover system for a battery system to overcome at least one of the above-mentioned drawbacks of the prior art.

Therefore, the utility model provides an insulating protection casing system for battery system, this insulating protection casing system include electrically insulating protection casing and fastener, and this protection casing is placed in the inside busbar top of battery module and is covered the inside busbar of battery module completely to keep apart the inside busbar of battery module and the total negative output row and the shunt of battery system, this fastener is used for fastening the protection casing to the battery module support that is used for bearing the weight of the inside busbar of battery module.

Preferably, the fastening means comprises at least one gooseneck buckle provided at the first side of the shield for snap-fitting in a recess located at a side of the battery module support.

Preferably, the gooseneck buckle is integrally formed with the boot.

Preferably, the fastening device further comprises an extension disposed at a second side of the protective cover opposite to the first side, the extension being provided with at least one opening for snap-fitting with a mushroom head disposed on the battery module bracket to snap the protective cover on the battery module bracket.

Preferably, the mushroom head snap includes a head portion, a stem portion, and a cut through the head portion and extending into at least a portion of the stem portion.

Preferably, the length of the stem of the mushroom head snap is substantially equal to the thickness of the extension.

Preferably, the mushroom head snap is integrally formed with the battery module holder.

Preferably, the protective cover is arranged against a lower surface of the total negative output row of the battery system to support the total negative output row.

Preferably, the shield is made of PBT GF 30V 0 plastic.

Preferably, the shape of the shield follows the shape of the internal bus bars of the battery module.

Preferably, the battery system is a 48V battery for an automobile.

According to the utility model discloses, the inside busbar of battery module is placed and is covered the inside busbar of battery module completely in the inside busbar top of battery module to the protection casing of electrical insulation, keeps apart the inside busbar of battery module and the total burden output of battery system and shunt, consequently can realize the electrical insulation between the inside busbar of battery module and the total burden output of battery system and shunt effectively, prevents the inside short circuit of battery system.

The protective cover can be restricted to the battery module support in six degrees of freedom by means of fastening means provided on both sides of the protective cover, preventing the protective cover from being dislocated in vibration.

In addition, the protective cover is arranged by being attached to the lower surface of the total negative output row of the battery system, so that the total negative output row and the shunt are effectively supported, and the structure is prevented from losing efficacy in vibration.

Drawings

The invention is described in detail below by way of non-limiting examples with reference to the accompanying drawings, in which:

fig. 1 shows a battery system with an insulating protective cover system according to an embodiment of the present invention installed.

Fig. 2 shows an enlarged partial view of a battery system with an insulating protective cover system according to an embodiment of the present invention removed;

fig. 3 shows a partial enlarged view of a battery system with an insulating protective cover system of an embodiment of the present invention installed; and

fig. 4 shows an insulation shield system according to an embodiment of the invention.

Detailed Description

An insulation shield system for a battery system according to an embodiment of the present invention is described below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention to those skilled in the art. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. Furthermore, it is to be understood that the invention is not to be limited to the specific embodiments described. Rather, any combination of the following features and elements, whether related to different embodiments or not, is contemplated to implement the present invention. Thus, the following aspects, features, embodiments and advantages are merely illustrative and should not be considered elements or limitations of the claims except where explicitly recited in a claim.

Fig. 1 shows a battery system with an insulating protective cover system 100 according to an embodiment of the present invention installed. The battery system is a 48V battery for an automobile. It should be apparent, however, to those skilled in the art that the insulating protective cover system 100 is not limited to use with 48V batteries for automotive vehicles, but may be adapted for use with any battery system having a similar structure.

As can be seen in connection with fig. 2 and 3, the insulating protective cover system 100 comprises an electrically insulating protective cover 101, which protective cover 101 is placed over the battery module internal bus bar 1 and completely covers the battery module internal bus bar 1. The protective cover 101 is fastened to the battery module holder 2 for carrying the battery module internal bus bars 1 by means of fastening means. The protective cover 101 isolates the battery module internal bus bar 1 from the total negative output bar 3 and the shunt 4, and thus can play a role in preventing a short circuit between the battery module internal bus bar 1 and the total negative output bar 3 and the shunt 4.

As shown in fig. 3, a protective cover 101 may be disposed against a lower surface of the overall negative output bank 3 of the battery system to support the overall negative output bank 3. The flow divider 4 is arranged to be placed on the total negative output row 3, and thus the protective cover 101 also functions to support the flow divider 4.

The protective cover 101 can be made of PBT GF 30V 0 plastic. The PBT GF 30V 0 plastic has excellent electric insulation performance and flame retardant performance and certain strength and flexibility, thereby endowing a battery system with higher safety. Of course, the shield 101 may be made of any suitable electrically insulating material.

In a preferred embodiment, the shape of the protective cover 101 is selected to follow the shape of the battery module internal bus bar 1. This allows for efficient use of the limited space within the battery system.

As shown in fig. 3 and 4, the fastening means may comprise two gooseneck snaps 102 arranged at a first side of the protective cover 101, the gooseneck snaps 102 being adapted to snap fit into the grooves 24 at the sides of the battery module holder 2. It should be apparent to one skilled in the art that only one or more gooseneck buckles 102 may be provided. Accordingly, only one or more grooves 24 may be provided. Alternatively, only one groove 24 may be provided for a plurality of gooseneck buckles 102.

The gooseneck buckle 102 may be integrally formed with the boot 101, such as by injection molding. This simplifies system assembly and improves service life. Of course, it will be appreciated that the gooseneck buckle 102 may be connected to the protective hood 101 by a hinge, for example.

As shown in the right side of fig. 4, the gooseneck buckle 102 has a substantially elongated shape, and one end of the gooseneck buckle 102 is connected to the protective cover 101 and the other end includes a hook portion so as to be buckled into the groove 24 provided at the side of the battery module holder 2. Preferably, a certain gap is formed between both sides of the gooseneck buckle 102 and the protective cover 101 to allow the gooseneck buckle 102 to pivot relative to the protective cover 101, thereby facilitating the placement of the protective cover 101 in place on the battery module support 2 and the snapping of the gooseneck buckle 102 into the groove 24.

As shown on the left side of fig. 4, the fastening means may further comprise an extension 103 arranged on a second side of the protective cover 101 opposite to said first side, which extension 103 is provided with two openings 104 in the form of circular holes, which openings 104 are intended to cooperate with mushroom-head snaps 21 arranged on the battery module carrier 2 in order to snap the protective cover 101 onto the battery module carrier 2.

It will be apparent to those skilled in the art that only one or more openings 104 may be provided in the extension 103. Accordingly, only one or more mushroom head snaps 21 may be provided on the battery module holder 2. The opening 104 may have any suitable shape as long as it can cooperate with the mushroom head snap 21 to snap the protection cover 101 to the battery module holder 2.

Mushroom head snap 21 may include a head 22 and a stem (not shown). The head 22 is configured to be able to pass through the opening 104 and to catch the protective cover 101 on the battery module holder 2. The head 22 may take any suitable shape, such as a hemispherical shape, a truncated cone shape, etc.

Mushroom head snap 21 may also include a cutout 23 extending through head 22 and into at least a portion of the stem to facilitate passage of head 22 through opening 104.

The length of the stem of the mushroom head catch 21 may be selected to be substantially equal to the thickness of the extension 103 to allow the protective cover 101 to be securely fastened to the battery module holder 2.

The battery module holder 2 may be made of PC + ABS plastic. Of course, the battery module holder 2 may be made of any suitable material. The mushroom head snap 21 may be integrally formed with the battery module holder 2, for example, by injection molding. However, it should be understood that the mushroom head snap 21 may be connected to the battery module holder 2 by any suitable means such as welding.

Preferably, the extension 103 may be integrally formed with the shield 101, for example by injection moulding. The extension 103 may take the form of a generally rectangular thin plate. In a state in which the protective cover 101 is mounted on the battery module holder 2, the rectangular thin plate is substantially parallel to the battery module holder 2 and abuts on the battery module holder 2 to allow the protective cover 101 to be securely fastened to the battery module holder 2.

The mushroom head buckle 21 provides a connection mode which is simple to manufacture and convenient and quick to install. It should be understood, however, that the protective cover 101 may also be fastened to the battery module holder 2 by means of any suitable connection means.

In an alternative embodiment, not shown, instead of the mushroom-head snap 21, the protective cover 101 can be fastened to the battery module holder 2 by means of self-tapping screws through the openings 104.

In another alternative embodiment, not shown, instead of the extension 103 and the mushroom-head catch 21, the fastening device is also provided with at least one gooseneck catch on the second side. Accordingly, additional grooves are provided at corresponding positions of the battery module bracket 2 to be snap-fitted with the at least one gooseneck.

When will the utility model discloses during the battery system is installed to protection casing 101, at first place protection casing 101 in the inside busbar 1 top of battery module and cover the inside busbar 1 of battery module completely, make mushroom head buckle 21 aim at opening 104, then exert certain power to protection casing 101, make mushroom head buckle 21's head 22 pass opening 104, buckle in the recess 24 of battery module support 2 side with gooseneck buckle 102 at last. Thus, the protective cover 101 isolates the battery module internal bus bar 1 from the total negative output bar 3 and the shunt 4, thereby preventing a short circuit inside the battery system. In the mounted state of the protective cover 101, the protective cover 101 abuts against the lower surface of the total negative output row 3, so that the total negative output row 3 and thus the diverter 4 can be supported.

Although the present invention has been described with reference to the preferred embodiments, the present invention is not limited thereto. Various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention, and the scope of the invention is to be determined by the appended claims.

Claims

1. An insulation shield system (100) for a battery system, the insulation shield system (100) comprising:

an electrically insulating protective cover (101), the protective cover (101) being placed over the battery module internal busbar (1) and completely covering the battery module internal busbar (1) to isolate the battery module internal busbar (1) from the total negative output bar (3) and the shunt (4) of the battery system; and

a fastening device for fastening the protective cover (101) to a battery module holder (2) for carrying a battery module internal busbar (1).

2. The insulation shield system (100) according to claim 1, wherein the fastening means comprises at least one gooseneck snap (102) arranged at a first side of the shield (101), the gooseneck snap (102) being adapted to snap fit into a recess (24) at a side of the battery module holder (2).

3. The insulation shield system (100) of claim 2, wherein the gooseneck buckle (102) is integrally formed with the shield (101).

4. The insulation shield system (100) according to claim 2, wherein the fastening means further comprises an extension (103) arranged at a second side of the shield (101) opposite to the first side, the extension (103) being provided with at least one opening (104), the at least one opening (104) being adapted to cooperate with a mushroom-head snap (21) arranged on the battery module holder (2) for snapping the shield (101) on the battery module holder (2).

5. The insulation shield system (100) of claim 4, wherein the mushroom-head snap (21) comprises a head (22), a stem, and a cut-out (23) extending through the head (22) and into at least a portion of the stem.

6. The insulation shield system (100) according to claim 5, wherein a length of a stem of the mushroom-head snap (21) is substantially equal to a thickness of the extension (103).

7. The insulation shield system (100) according to any one of claims 4 to 6, wherein the mushroom head snap (21) is integrally formed with the battery module holder (2).

8. The insulation shield system (100) according to claim 1, characterized in that the shield (101) is arranged against the lower surface of the total negative output row (3) of the battery system to support the total negative output row (3).

9. The insulation protection cover system (100) according to claim 1, characterized in that the protection cover (101) is made of PBT GF 30V 0 plastic and/or the shape of the protection cover (101) follows the shape of the battery module internal busbar (1).

10. The insulation shield system (100) according to claim 1, wherein the battery system is a 48V battery for a motor vehicle.