CN208336617U - Connector and battery case - Google Patents

Abstract

This application involves connectors and battery case.Connector includes: connector body；Connection terminal is installed on the connector body and the extension end including stretching out in outside the connector body；And insulating part；The insulating part includes the first limiting section, and first limiting section is set to the extension end after movement and occurs within the stroke of short circuit.Fire is met with outside battery case, even if connector body is by scorification, it is no longer able to play restriction effect to connection terminal, but at this time, still the freedom degree of extension end can be limited by the first limiting section, reduce its with extraneous metallic conduction part such as metallic support, connect bolt etc. a possibility that in electrical contact occurs, generation phenomena such as so as to reduce or even avoid short circuit and catch fire.

Description

Connector and battery case

Technical field

This application involves energy storage device technical field more particularly to a kind of connectors and battery case.

Background technique

Connector includes plastic cement pedestal and the conduct piece (such as aluminium bars) for being set to plastic cement pedestal, and connector is generally disposed at Battery case, and being connected by total output stage of aluminium bars and battery modules, if meeting with fire, the plastic cement pedestal of connector be easy to by Scorification, at this point, plastic cement pedestal can not play a supporting role to aluminium bars, this is easy to aluminium bars and other metalworks (such as position Connection bolt below aluminium bars) it overlaps, it causes short circuit or occurs on fire.

Utility model content

This application provides a kind of connector and battery cases, can reduce the generation of short circuit or phenomenon on fire.

A kind of connector, comprising:

Connector body；

Connection terminal is installed on the connector body and the extension end including stretching out in outside the connector body；With

Insulating part；

The insulating part includes the first limiting section, and after being set to the extension end movement short circuit occurs for first limiting section Stroke within.

Further, first limiting section extends from the lower section of the extension end along the stretching direction of the extension end.

Further, the insulating part further includes the second limiting section, and second limiting section is vertical with first limiting section Connect.

Further, the insulating part further includes connection second limiting section and the third for being parallel to first limiting section Limiting section, the third limiting section extend from the top of extension end along the direction of the extension end.

Further, first limiting section of the insulating part, second limiting section and the third limiting section are common It is formed about the ring structure of the extension end setting.

Further, the insulating part further includes occlusion part, and the occlusion part is covered in the connector body described in Extension end and the exposed position for having metal.

Further, the insulating part further includes receiving portion, and described accommodation section and the boss of the connector body are matched Close connection.

Further, the insulating part further includes blind hole.

Further, the connector body includes plastic cement pedestal, and the fusing point of the insulating part is higher than the plastic cement pedestal Fusing point.

A kind of battery case, comprising:

Cabinet；

It is set to the intracorporal battery modules of the case；With

Connector as described in any one of the above embodiments,

The extension end is protruded into the cabinet and is connect with total output stage of the battery modules.

Technical solution provided by the present application can achieve it is following the utility model has the advantages that

This application provides a kind of connectors, wherein connector includes insulating part, and insulating part includes the first limiting section, should First limiting section occurs within short-circuit stroke after being set to extension end movement.That is, the first limiting section may be implemented pair The limit of extension end meets with fire, even if connector body by scorification, is no longer able to play connection terminal outside battery case Restriction effect, but at this point, the freedom degree of extension end can be limited, by the first limiting section still to reduce itself and metalwork A possibility that in electrical contact, occurs for (specifically such as: connection bolt, metallic support), so as to reduce or even avoid short circuit and The generation of phenomena such as kindling.

It should be understood that the above general description and the following detailed description are merely exemplary, this can not be limited Application.

Detailed description of the invention

Fig. 1 is the schematic diagram of battery case part-structure provided by the embodiments of the present application；

Fig. 2 is the schematic diagram that connector provided by the embodiments of the present application is connect with cabinet；

Fig. 3 is the decomposition view of connector provided by the embodiments of the present application；

Fig. 4 is the schematic diagram of insulating part provided by the embodiments of the present application；

Fig. 5 is the cross-sectional view of insulating part provided by the embodiments of the present application.

Appended drawing reference:

1- cabinet；

2- connector；

20- connector body；

200- pedestal；

202- bracket；

204- connection bolt；

22- connection terminal；

The extension end 220-；

24- insulating part；

The first limiting section of 240-；

The second limiting section of 242-；

244- third limiting section；

246- occlusion part；

247- receiving portion；

248- blind hole；

The surface 249-；

26- isolation board；

The total output negative pole of 3-.

The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application Example, and together with specification it is used to explain the principle of the application.

Specific embodiment

The application is described in further detail below by specific embodiment and in conjunction with attached drawing.

It should be noted that the nouns of locality such as "upper", "lower" described in the embodiment of the present application, "left", "right" are with attached drawing Shown in angle come what is be described, should not be construed as the restriction to the embodiment of the present application.In addition, within a context, it is also necessary to Understand, when mentioning an element and being connected to another element "upper" or "lower", can not only be connected directly between another Perhaps "lower" can also be indirectly coupled to another element "upper" or "lower" by intermediary element for one element "upper".

As shown in Figure 1, the battery case includes cabinet 1 and electricity arranged in the box body this application provides a kind of battery case Chi Mo group (attached to be not shown in the figure).Wherein, battery modules can be connected by way of in parallel or series by multiple battery units Together, a total output cathode and a total output negative pole are drawn in battery modules.

Battery case also typically includes connector 2, and connector 2 is typically provided two, and respectively positive connector and cathode connects Device is connect, positive connector and cathode connector are connect with total output cathode of battery modules and total output negative pole respectively, battery mould Group is connect via positive connector and cathode connector with battery case management system.

The application is described in detail by taking cathode connector as an example, and positive connector is referred to the structure of cathode connector It is configured.

As shown in Figure 1 to Figure 3, connector 2 includes connector body 20, and connector body 20 includes pedestal 200 and bracket 202, wherein bracket 202 is set in cabinet 1, and pedestal 200 is set to outside cabinet 1, and bracket 202 and pedestal 200 pass through connection spiral shell Bolt 204 connects, to guarantee the reliability connected between connector 2 and cabinet 1.In order to realize insulation, pedestal 200 can select modeling Glue material matter, also, in order to improve bonding strength, bracket 202 can select metal material.

Certainly, connector body 20 is not limited only to structure described above, if cabinet 1 has enough connections strong Degree, bracket 202 can be omitted, at this point, pedestal 200 can directly be connect with cabinet 1.

Connector 2 further includes connection terminal 22, and connection terminal 22 is fixed in pedestal 200 and including being exposed to pedestal 200 Outer extension end 220, extension end 220 pass through cabinet 1 and bracket 202 and extend towards battery modules, which supplies and battery Total output negative pole 3 of mould group connects.Extension end 220 can be bolted with total output negative pole 3, but be not limited only to this.

Particularly, as shown in Fig. 2, Fig. 4 and Fig. 5, connector 2 further includes insulating part 24, and insulating part 24 includes the first limit Portion 240, first limiting section 240 are set within stroke when short circuit occurring after extension end 220 is moved.

What needs to be explained here is that in normal operation, extension end 220 is kept fixed state and will not generate position It moves, fire is met with outside battery case, pedestal 200 fails to the fixation of connection terminal 22 and position-limiting action, at this point, extension end 220 can occur the movement on position under the effect of gravity, and the movement is so that extension end 220 is easy to the metal with surrounding Conduct piece contact, so that short circuit occurs.

In the application, the stretching from the lower section of extension end 220 along extension end 220 is can be set into the first limiting section 240, this Sample one, when extension end 220 is sagging under the effect of gravity, the limit to extension end 220 is may be implemented in the first limiting section 240, To limit the sagging freedom degree in extension end 220, reduce its bracket 202 with extraneous metallic conduction part such as metal material, company A possibility that in electrical contact, occurs for connecting bolts 204 etc., so as to reduce or even avoid short circuit and generation phenomena such as kindling.

When battery case meets with fire, when pedestal 200 is by scorification, the moving direction of extension end 220 has uncertainty, because This, in order to reliably be limited to extension end 220, further, insulating part 24 can also include that 242 third of the second limiting section limits Portion 244.Wherein, 240 vertical connection of the second limiting section 242 and the first limiting section, third limiting section 244 are upper from extension end 220 Side along extension end 220 stretching direction extend, third limiting section 244 connect with the second limiting section 242 and with the first limiting section 240 It is arranged in parallel.

It follows that the first limiting section 240, the second limiting section 242 and third limiting section 244 respectively from below, side and The different directions such as top limit extension end 220, it is possible thereby to the one-movement-freedom-degree of extension end 220 is further limited, into One step reduces the generation of phenomena such as short circuit and kindling.

In the present embodiment, the second limiting section 242 includes two parts, and two parts are oppositely arranged and are respectively arranged at extension end 220 two sides, each section of the second limiting section 242 with 244 vertical connection of the first limiting section 240 and third limiting section.

In the embodiment shown in fig. 4, the first limiting section 240, the second limiting section 242 and the common shape of third limiting section 244 At the ring structure for surrounding extension end 220, which has been limited in extension end 220 in a limited space, thus Comprehensive limitation can be realized to extension end 220.

With continued reference to FIG. 3, bracket 202 and connection bolt 204 are apart from extension end after connector 2 is fixed on cabinet 1 220 is relatively close, which increase extension end 220 and bracket 202, connect a possibility that short circuit occurs for bolt 204.For this purpose, in the application Insulating part 24 further include occlusion part 246, occlusion part 246 covers the bracket 202 towards a side surface of extension end 220 and naked It is exposed to the connection bolt 204 of 220 side of extension end.It is readily comprehensible, occlusion part 246 increase extension end 220 and bracket 202, The electric clearance and creepage distance between bolt 204 are connected, insulation performance is substantially increased.

It should be noted that in some other embodiment, according to the difference of 2 specific structure of connector, 246 institute of occlusion part Covering is not limited only to bracket 202 and connection bolt 204, can also be other electrically conductive metalworks, at this point, occlusion part 246 can cover it is all towards the exposed position for having metal in 202 side of extension end on connector body 20.

Insulating part 24 can be detachably connected with bracket 202, to guarantee the flexibility of the two connection.A kind of embodiment, absolutely Edge part 24 can be clamped with bracket 202 and connect.

In another selectable embodiment, insulating part 24 can be Nian Jie with bracket 202, for example, can insulate first Double-sided adhesive is sticked at the back side of part 24, and is adhered to bracket 202 by double-sided adhesive.

In order to guarantee bonding fastness, a side surface 249 of insulating part 24 towards bracket 202 can be set as plane, Correspondingly, a side surface of bracket 202 towards insulating part 24 is also set as plane.In this way, when two plane adhesions, the two have compared with Big contact area, so as to form biggish bonding force.

Further, it is also possible to be arranged insulating part 24 include receiving portion 247, receiving portion 247 by insulating part 24 to remove The mode of material is formed, which can accommodate the boss of connector body 20, such as connection bolt 204.And And receiving portion 247 can also be cooperatively connected with the boss.For connecting bolt 204, connection bolt 204 is interior hexagonal Shape profile, correspondingly, receiving portion 247 is arranged to hexgonal structure, the profile of the receiving portion 247 and the profile for connecting bolt 204 Match, it is possible thereby to cooperate, realizes interference connection.

Insulating part 24 can also include blind hole 248, and blind hole 248 can be set in occlusion part 246, to reduce material, in turn Reduce the thickness of insulating part 24.It, can be with by the way that blind hole 248 is arranged as shown in figure 5, for the insulating part 24 of injection molding So that wall thickness of the insulating part 24 at each position is closer to, so as to control shrinking percentage, reduce the deformation of insulating part 24.

For insulating part 24, the fusing point that insulating part 24 can also be arranged is higher than the fusing point of pedestal 200, to promote insulation The high temperature resistance of part 24 in a fire.

A kind of embodiment, insulating part 24 can be using by SMC composite material (Sheet molding compound, sheets Moulding compound) made of insulating part.SMC composite material is glass fiber reinforced unsaturated polyester plastic, with high temperature resistant, resistance The features such as combustion.

It should be noted that insulating part 24 is not limited only to that other materials can also be selected using above-mentioned SMC composite material Matter, those skilled in the art can select according to the actual situation.

Connector 2 can also include isolation board 26, and isolation board 26 is connect with bracket 202, and isolation board 26 is arranged to bending knot Structure, free end are bent to extension end 220 with the junction of total output negative pole 3 to be isolated with battery modules, improve insulating properties.

The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.

Claims (10)

1. a kind of connector characterized by comprising

Connector body；

Connection terminal is installed on the connector body and the extension end including stretching out in outside the connector body；With

Insulating part；

The insulating part includes the first limiting section, and after being set to the extension end movement short-circuit row occurs for first limiting section Within journey.

2. connector according to claim 1, which is characterized in that lower section edge of first limiting section from the extension end The stretching direction of the extension end extends.

3. connector according to claim 2, which is characterized in that the insulating part further includes the second limiting section, and described Two limiting sections and the first limiting section vertical connection.

4. connector according to claim 3, which is characterized in that the insulating part further includes connection second limiting section And it is parallel to the third limiting section of first limiting section, the third limiting section is from the top of extension end along the extension end Direction extends.

5. connector according to claim 4, which is characterized in that first limiting section of the insulating part, described The ring structure to be arranged around the extension end is collectively formed in two limiting sections and the third limiting section.

6. connector according to claim 1, which is characterized in that the insulating part further includes occlusion part, the occlusion part The connector body is covered in towards the extension end and the exposed position for having metal.

7. connector according to claim 1, which is characterized in that the insulating part further includes receiving portion, described accommodation section It is cooperatively connected with the boss of the connector body.

8. connector according to claim 1, which is characterized in that the insulating part further includes blind hole.

9. connector according to claim 1, which is characterized in that the connector body includes plastic cement pedestal, described exhausted The fusing point of edge part is higher than the fusing point of the plastic cement pedestal.

10. a kind of battery case characterized by comprising

Cabinet；

It is set to the intracorporal battery modules of the case；With

Such as the described in any item connectors of claim 1-9,

The extension end is protruded into the cabinet and is connect with total output stage of the battery modules.