CN219477182U - Electric connection structure free of pre-installation and battery pack thereof - Google Patents

Abstract

The utility model belongs to the technical field of electrical connection equipment, a exempt from to install electrical connection structure and battery package thereof in advance is provided, mainly includes electric execution unit's side is provided with electric installation support electric execution unit with be connected with a plurality of busbar between the electric installation support, the busbar is used for providing the holding power that electric installation support is in under the suspension state. In this scheme the busbar both is used for electric mounting support with electric communication between the electric execution unit, simultaneously the busbar also is used for providing holding power, so that electric mounting support can be in the state of waiting to install relatively steadily, and overall structure is simpler, can be convenient for follow-up installation operation in the battery package.

Description

Electric connection structure free of pre-installation and battery pack thereof

Technical Field

The application belongs to the technical field of electric connection equipment, and particularly relates to an electric connection structure free of pre-installation and a battery pack thereof.

Background

The electric installation support is a support for fixing high-voltage and low-voltage connectors in the battery pack, the electric installation support is in threaded connection with the upper shell, the high-voltage connectors are connected with the bus bars, and the bus bars are connected with corresponding modules or electric parts in the battery pack to form a high-voltage loop. The existing electrical installation support installed on the upper casing of the battery pack, as shown in fig. 4, is designed with installation points fixed on the lower casing 5 or a support structure, and generally, the cast aluminum electrical installation support 2 is in threaded connection with the lower casing 5, so that the electrical installation support has a certain supporting force before the cover is closed.

However, in use, it is found that the electrical mounting support is fixed on the lower shell first, the fixing point is required to be designed, the space in the battery pack is wasted, the cost for fixing is increased, the electrical mounting support is screwed with the lower shell first and then screwed with the upper shell, secondary screwed assembly exists, the tolerance control requirement on the product is high, and poor tolerance control is easy to occur, so that poor assembly is caused.

Disclosure of Invention

In order to overcome the above-mentioned shortcoming in the prior art, an object of the present application is to provide a pre-installation-free electrical connection structure and a battery pack thereof, which can effectively improve the assembly efficiency and the assembly quality of electrical connectors in the battery pack.

The technical means adopted for solving the technical problems are as follows:

the utility model provides an exempt from electrical connection structure of pre-installation, including electric execution unit's side is provided with electric installation support electric execution unit with be connected with a plurality of busbar between the electric installation support, the busbar is used for providing the holding power that electric installation support is in under the suspension state.

Preferably, the busbar is formed by overlapping and welding metal foils.

Preferably, the busbar is provided with a plurality of folded bent parts.

Preferably, the busbar is sleeved with a heat shrinkage tube.

Preferably, the electrical installation support is provided with a plurality of high-voltage connectors, and the high-voltage connectors are electrically communicated with the electrical execution unit through the bus.

Preferably, the number of the high-voltage connectors corresponds to the number of the bus bars one by one.

Preferably, the high-voltage connectors are arranged on the same straight line, and the straight line where the high-voltage connectors are located is parallel to the straight line where the side face of the electric execution unit is located.

In the implementation process, the electric installation support is arranged beside the electric execution unit, the electric installation support is connected with the electric execution unit through the bus bar, the bus bar is used for electric communication between the electric installation support and the electric execution unit, and the bus bar is also used for providing supporting force, so that the electric installation support can be relatively stably in a state to be installed, the whole structure is simpler, and the follow-up installation operation in the battery pack can be facilitated.

The utility model provides a battery package still provides, including last casing, lower casing and above an exempt from electric connection structure of pre-installation, electric connection structure sets up go up the casing with in the space after the casing covers mutually down.

Preferably, the upper housing is provided with a plurality of through holes through which the high-voltage connectors pass.

Preferably, the electrical mounting bracket is detachably mounted on the upper housing.

In the implementation process, by applying the pre-installation-free electrical connection structure provided by the application in the battery pack, during installation, the electrical execution unit is usually fixed on the lower shell, and the bus bar provides supporting force at the moment, so that the electrical installation support is in a relatively stable suspension state, and is convenient for being fixedly connected with the upper shell after the upper shell is covered; in the whole process, the situation that the internal space occupation and the assembly tolerance caused by pre-installing the electric installation support on the lower shell are difficult to control can be effectively avoided in the traditional technology, the number of dimension chain rings and the assembly tolerance are reduced, and the assembly efficiency and the assembly quality of the whole package are conveniently improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of an electrical connection structure according to the present application.

Fig. 2 is a schematic view of another view of the electrical connection structure of the present application.

Fig. 3 is a schematic view of the mounting structure of the electrical connection structure in the battery pack according to the present application.

Fig. 4 is a schematic view of the installation of an electrical mounting bracket in the prior art.

Marking:

1-electric execution unit, 2-electric installation support, 21-high voltage connector, 3-busbar, 31-bending portion, 4-upper casing, 5-lower casing.

Detailed Description

In order that the above-recited objects, features and advantages of the present utility model will be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description. In addition, embodiments of the present application and features of the embodiments may be combined with each other without conflict. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, and the described embodiments are merely some, rather than all, embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, are intended to fall within the scope of the present utility model.

It should be noted that: unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. Like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 to 3, the electrical connection structure without pre-installation is provided in this embodiment, and mainly includes an electrical execution unit 1 and an electrical installation support 2, and a plurality of bus bars 3 are connected between the electrical execution unit 1 and the electrical installation support 2.

The specific structural form of the electric execution unit 1 (BDU, battery Disconnect Unit) may be referred to in the prior art, and will not be described herein.

In this embodiment, the electrical mounting bracket 2 is disposed beside the electrical execution unit 1, so that electrical connection between the two may be achieved by using the bus bar 3 with a relatively short length, and meanwhile, the supporting force provided by the bus bar 3 with a relatively short length may also be greater, so that the electrical mounting bracket 2 may be in a relatively stable suspension state under the supporting effect of the bus bar 3, without other pre-fixing installation measures, as shown in fig. 1 and 2.

In a preferred embodiment, the busbar 3 is formed by welding a plurality of metal foils, such as copper foil, after being stacked; so that the busbar 3 after molding can have good conductivity and deformation amplitude.

For example, by folding the bus bar 3 itself to form a plurality of bent portions 31, and by forming the bent portions 31, the bending resistance of the bus bar 3 can be improved, so that the supporting force of the bus bar 3 to the electrical mounting bracket 2 is more stable and reliable.

In an preferable solution, in this embodiment, a heat shrink tube (not shown in the figure) is further sleeved on the busbar 3 to improve the safety of the busbar 3 in the use process, and meanwhile, the sleeved heat shrink tube may also play a role in limiting and protecting the deformation recovery of the bending portion 31.

Further, on the electrical mounting bracket 2 are provided several high voltage connectors 21, as three are shown in the present embodiment; the high-voltage connectors 21 are electrically communicated with the electric execution unit 1 by being connected with the bus bars 3, and the number of the high-voltage connectors 21 is in one-to-one correspondence with the number of the bus bars 3.

As a preferred solution, the electrical mounting bracket 2 in this embodiment is in a rectangular plate structure, and the three high-voltage connectors 21 are disposed on the same straight line, for example, the three high-voltage connectors 21 are disposed in a line along the length direction of the electrical mounting bracket 2. Meanwhile, the straight line where the electrical installation support 2 is located is parallel to the straight line where the side face of the electrical execution unit 1 is located, and at this time, the supporting force provided by the plurality of bus bars 3 is more uniform.

In addition, the embodiment also provides a battery pack, which mainly comprises an upper shell 4, a lower shell 5 and the pre-installation-free electrical connection structure, wherein the electrical connection structure is arranged in a space formed by covering the upper shell 4 and the lower shell 5.

As a preferred solution, in this embodiment, the upper housing 4 is provided with a plurality of through holes through which the high voltage connector 21 is inserted, so that the high voltage connector 21 can be inserted into the through holes, and the busbar 3 has a certain deformation amplitude, so that the position of the electrical mounting bracket 2 in the suspended state can be adjusted, so that the final installation and fixation between the electrical mounting bracket 2 and the upper housing 4 can be facilitated.

Further, a plurality of screw holes corresponding to each other are further formed in the electric installation support 2 and the upper casing 4, and the screw holes are penetrated through by bolts, so that detachable installation connection between the electric installation support 2 and the upper casing 4 is achieved.

In this embodiment, the situation that the internal space occupied and the assembly tolerance is difficult to control caused by pre-installing the electric installation bracket 2 on the lower housing 5 in the conventional technology can be effectively avoided; according to the scheme, the electric mounting support 2 is arranged near the electric execution unit 1, the problem of insufficient rigidity when long bus bars are used for connection is avoided, the relatively short bus bars 3 are adopted to have better rigidity, the electric mounting support 2 can be effectively supported, the lower shell 5 is not required to be provided with a pre-mounting point, the design space is saved, the number of size chains is reduced, and the assembly tolerance is reduced.

The foregoing is merely a specific embodiment of the present application and is not intended to limit the scope of the present application, and various modifications and variations can be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application. Variations and substitutions will be readily apparent to those skilled in the art within the scope of the present disclosure, and are intended to be included within the scope of the present disclosure. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. The utility model provides an exempt from electrical connection structure of pre-installation, includes electric execution unit, its characterized in that electric execution unit's side is provided with electric installation support electric execution unit with be connected with a plurality of busbar between the electric installation support, the busbar is used for providing the holding power that electric installation support is in under the suspension state.

2. The pre-mount free electrical connection structure of claim 1, wherein the buss bars are formed by metal foil lamination welding.

3. The electrical connection structure without pre-installation according to claim 1 or 2, wherein the bus bar is provided with a plurality of folded-over bent portions.

4. The electrical connection structure without pre-installation according to claim 3, wherein the busbar is provided with a heat shrink tube.

5. The pre-installation free electrical connection structure of claim 4, wherein a plurality of high voltage connectors are provided on the electrical mounting bracket, and electrical communication is achieved between the high voltage connectors and the electrical execution unit by connecting the bus bars.

6. The pre-mount free electrical connection structure of claim 5, wherein the number of high voltage connectors corresponds one-to-one to the number of buss bars.

7. The electrical connection structure without pre-installation according to claim 6, wherein the high voltage connectors are arranged on the same straight line, and the straight line where the high voltage connectors are located is parallel to the straight line where the side face of the electrical actuator unit is located.

8. A battery pack comprising an upper housing, a lower housing, and a pre-installation-free electrical connection structure according to any one of claims 1 to 7, wherein the electrical connection structure is disposed in a space where the upper housing and the lower housing are covered.

9. The battery pack of claim 8, wherein the upper housing is provided with a plurality of high voltage connector through-holes.

10. The battery pack of claim 9, wherein the electrical mounting bracket is removably mounted on the upper housing.