CN209843767U

CN209843767U - Module support and battery pack

Info

Publication number: CN209843767U
Application number: CN201920415273.0U
Authority: CN
Inventors: 黄毅轩; 王铄; 梁建鹏
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2019-12-24
Anticipated expiration: 2029-03-28

Abstract

The utility model relates to a new energy automobile power battery technical field discloses a module support and battery package. The module support includes that base and lock are in apron on the base, the apron with it has the cooling conduit of inlet and liquid outlet to be used for circulating the coolant liquid to inject between the base, inlet and liquid outlet set up the apron with on any one in the base, be equipped with on the base and can be with the module support mounting in the support mounting hole of module. The utility model discloses a module support has integrateed cooling and support function, has compromise lightweight, space utilization, assembly process succinct nature, is convenient for realize the installation and the cooling of double-deck multilayer module even, need not to set up the water-cooling board alone and cools off the module to the space utilization who has promoted the battery package, whole package structural strength, whole package energy density have reduced the assembly process of battery package, have promoted the production beat of battery package, have reduced the cost of whole package.

Description

Module support and battery pack

Technical Field

The utility model relates to a new energy automobile power battery technical field specifically relates to a module support and battery package.

Background

The current society automobile industry is revolutionarily changing, namely electric automobile is gradually replacing traditional fuel oil automobile, and the new energy automobile industry of our country is on the way of rapid development. Along with the popularization and increase of electric automobiles, the requirement of users on the driving range of the electric automobiles is higher and higher, the power battery system is used as an energy storage and power output device of the electric automobiles, is a power source of the electric automobiles and guarantees the driving range of the electric automobiles, and the increase of the battery module is a main scheme for increasing the electric quantity and improving the driving range.

Receive the spatial structure influence of whole car, can highly have certain restriction to the battery package, generally be not more than 150mm, and rear passenger seat below has a higher space, for the duration that improves the electric motor car, can carry out arranging of double-deck module here, along with the appearance of the structure of multilayer battery module, can effectively utilize the envelope space, increase electric motor car continuation of the journey mileage. However, the double-layer modules need to be connected through the bracket, and the bracket ensures the installation and safety of the modules and considers the space utilization rate. And as the power of the electric vehicle increases, it is generally required to cool the battery module.

In the prior art, a cold plate is fixedly connected to a bracket through bolts, the cold plate is made of a section bar, and a grid structure in a cavity is used as a channel of cooling liquid. However, the design structure has the disadvantages of multiple welding processes, complex manufacturing process, high cost and large internal space of the required battery pack. And the support needs to be fixed on other parts during assembly, so that the assembly procedures are more, and the assembly time is not saved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integrated cooling and support function is favorable to reducing the module support of the weight of battery package.

In order to achieve the above object, an aspect of the present invention provides a module support, be in including base and lock apron on the base, the apron with it has the cooling pipe who has inlet and liquid outlet to be used for circulating the coolant liquid to inject between the base, inlet and liquid outlet set up the apron with on any one in the base, be equipped with on base and/or the apron and can be with module support mounting in the support mounting hole of battery module.

Optionally, the cooling pipeline connects the liquid inlet and the liquid outlet through multiple bending.

Optionally, the base is recessed to form a continuous bending cavity, and the cavity is defined by the cover plate and the base together to form the cooling duct.

Optionally, the cooling pipeline at least comprises a first pipeline, an inlet of the first pipeline is communicated to the liquid inlet, and an outlet of the first pipeline is communicated to the liquid outlet.

Optionally, the base is provided with the supporting seat that is used for supporting on the module all around, the support mounting hole sets up on the supporting seat.

Optionally, the base is provided with a limiting protrusion which extends upwards and protrudes out of the cover plate and is used for limiting the module, and the cover plate is provided with a clamping groove used for avoiding the limiting protrusion.

The utility model discloses the second aspect provides a battery package, the battery package includes at least one module unit, every the module unit includes that upper module, lower floor's module and setting are in above-mentioned arbitrary scheme between upper module and the lower floor's module the module support.

Optionally, the upper module and the lower module respectively include two or more modules side by side, and the modules of the upper module and the lower module correspond to each other up and down.

Optionally, the battery pack further includes a lower case, and two or more module units are fixed to the lower case.

Optionally, the two sides of the end plates of the upper module and the lower module are respectively provided with a module mounting hole corresponding to the bracket mounting hole, and each module unit sequentially penetrates through the module mounting hole of the upper module, the bracket mounting hole and the module mounting hole of the lower module through fasteners to be fixed on the lower shell.

Through the technical scheme, the utility model discloses a module support has integrateed cooling and support function, has compromise lightweight, space utilization, assembly process succinct nature, is convenient for realize the installation and the cooling of double-deck even multilayer module, need not to set up the water-cooling board alone and cools off the module to the space utilization who has promoted the battery package, whole package structural strength, whole package energy density have reduced the assembly process of battery package, have promoted the production beat of battery package, have reduced the cost of whole package.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural view of a module holder according to an embodiment of the present invention;

FIG. 2 is a perspective view of the module holder of FIG. 1;

FIG. 3 is a bottom view of the module holder of FIG. 1;

FIG. 4 is a top view of the base in the module holder of FIG. 1;

fig. 5 is a schematic structural diagram of a double-layer module structure according to an embodiment of the present invention;

FIG. 6 is an assembled view of the lower module of FIG. 5;

fig. 7 is an assembled view of the upper module of fig. 5.

Description of the reference numerals

1-base, 2-apron, 3-inlet, 4-liquid outlets, 5-cooling duct, 6-supporting seats, 7-spacing arch, 8-upper module, 9-lower module, 10-lower casing, 11-fastener, 12-module mounting hole, 13-support mounting hole, 14-liquid inlet pipe, 15-liquid outlet pipe, 16-strengthening rib.

Detailed Description

In the present invention, the embodiments and the features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments.

With reference to fig. 1-4, according to an aspect of the present invention, a module support is provided, which includes a base 1 and a cover plate 2 mounted on the base 1, the cover plate 2 and a cooling pipe 5 having an inlet 3 and an outlet 4 for circulating cooling liquid is defined between the base 1, the inlet 3 and the outlet 4 are disposed on the cover plate 2 and any one of the base 1, and a support mounting hole 13 is disposed on the base 1 and/or the cover plate 2 for mounting the module support on a battery module.

Particularly, the utility model discloses a module support can wear to locate support mounting hole 13 through fasteners such as bolt in order to with module support mounting on the module, general this module support is used for installing between two-layer or multilayer module, cooling and support function have been integrateed to this module support simultaneously, the lightweight has been taken into account, space utilization, assembly process succinct nature, be convenient for realize the installation and the cooling of double-deck or even multilayer module, need not to set up the water-cooling board alone and cool off the module, thereby the space utilization of battery package has been promoted, whole package structural strength, whole package energy density, the assembly process of battery package has been reduced, the production beat of battery package has been promoted, the cost of whole package has been reduced.

In order to improve the cooling effect and the cooling rate, the cooling pipeline 5 communicates the liquid inlet 3 and the liquid outlet 4 through multiple bending. Therefore, the modules above and below the bracket can be sufficiently radiated through the bent circulation of the cooling liquid in the cooling pipeline 5, so that the purpose of cooling the modules is fulfilled.

In this embodiment, inlet 3 and liquid outlet 4 all set up on apron 2, and of course in some other embodiments, inlet 3 and liquid outlet 4 also can directly set up on base 1, the utility model discloses do not do the restriction to this. Further, liquid inlet 3 adopts welding or other suitable modes to be connected with liquid inlet pipe 14, and liquid outlet 4 adopts welding or other suitable modes to be connected with liquid outlet pipe 15, and specific connected mode can adopt modes such as joint or fast plug.

Of course, the cooling ducts 5 may be arranged in any configuration between the base 1 and the cover 2. In this embodiment, base 1 is recessed to form the continuous bending form cavity, and this structure accessible casting integrated into one piece, the cavity passes through apron 2 with base 1 is injectd jointly and is formed cooling duct 5, wherein, apron 2 can adopt the aluminum plate that heat transfer performance is good to make, base 1 can use the panel beating to bend, tailor-welded or panel beating stamping process to make, can weld together between apron 2 and the base 1 the two in order to form cooling duct 5.

It should be noted that, in order to further increase the cooling rate and enhance the cooling effect, the cooling pipeline 5 at least includes a first pipeline, an inlet of the first pipeline is communicated to the liquid inlet 3, and outlets of the first pipeline are communicated to the liquid outlet 4. Of course, the cooling pipe 5 may also include two or more pipes based on the design requirement. In this embodiment, in order to have two pipelines, specifically, the cooling pipeline 5 includes a first pipeline and a second pipeline, and similarly, an inlet of the second pipeline is also communicated to the liquid inlet 3, an outlet of the second pipeline is also communicated to the liquid outlet 4, and the first pipeline and the second pipeline are arranged side by side, so that the heat dissipation effect of the module can be significantly enhanced, and the cooling is more uniform.

For the steadiness between reinforcing module after the module support mounting and the module, base 1 is provided with the supporting seat 6 that is used for supporting on the module all around, and further, supporting seat 6 can be supported on the end plate of module, support mounting hole 13 runs through the setting and is in on the supporting seat 6, because apron 2 extends to the top of supporting seat 6, this support mounting hole 13 further runs through apron 2 from supporting seat 6, of course, the technical staff in the art can understand, can set up to not extending to the position that sets up support mounting hole 13 at apron 2, and support mounting hole 13 only runs through base 1 setting this moment.

In the present embodiment, in order to increase the strength of the module holder, the bottom of the base 1 is further provided with the mutually intersecting ribs 16, so that the deformation of the casting can be reduced while increasing the product strength. Considering the clearance between the module bracket and the lower module after installation, the height of the reinforcing rib is not too high and is generally not more than 8 mm.

Because the module support is located between two-layer module about being located at the installation, consequently for the convenience of the location when installing the module on support upper strata, base 1 is provided with upwards extend and protrusion in apron 2 be used for carrying out spacing arch 7 to the module, be provided with on the apron 2 and be used for dodging spacing bellied draw-in groove. The module that is located the support upper strata can be accurately installed on the support through spacing arch 7, convenient location simultaneously to it is fixed to utilize the fastener to wear to locate support mounting hole 13 completion. In addition, the limiting protrusion 7 is matched with the clamping groove of the cover plate 2 to clamp the cover plate 2 on the base 2. In particular, the position-limiting protrusion 7 may be provided in an L-shaped configuration that can be adapted to the profile of the module.

The utility model discloses the second aspect provides a battery package, battery package includes at least one module unit, as fig. 5-7, shows that there are two module units, every the module unit includes upper module 8, lower floor's module 9 and sets up above-mentioned arbitrary scheme between upper module 8 and the lower floor's module 9 the module support.

In the installation, the base 1 of module support is located 9 tops of lower floor's module, the supporting seat 6 of module support supports on the end plate of lower floor's module 9, and the apron 2 of module support is used for accepting upper module 8, spacing arch 7 on the base 1 can be placed upper module 8's installation and carry on spacingly.

Above-mentioned battery package is the condition that every module unit includes two-layer module, and of course, every module unit can also include the module more than three-layer or three-layer, sets up the module support through above-mentioned mode between the adjacent two-layer module to the realization is to the support and the cooling of module, improves battery package's security. In addition, through setting up single module support and realizing simultaneously promptly supporting and the cooling to the module, the function of integrated water-cooling board and module support saves spare part quantity, for traditional double-deck module design, can effectively reduce the battery package Z to the height, guarantees the assembly nature of product.

It will also be understood that the upper module and the lower module are not limited to the two side-by-side modules shown in the figures, and that the upper module and the lower module may each include two or more modules side-by-side, with the modules of the upper module and the lower module corresponding one above the other, as the mounting conditions permit. It should be noted that, in order to satisfy the user demand of module support, the size of base 1 of module support sets up to the size looks adaptation of the lower floor module of constituteing by a plurality of modules side by side to guarantee module support's commonality.

Further, the battery pack further comprises a lower case 10, and two or more module units are fixed on the lower case 10. The both sides of upper module 8 with the end plate of lower floor's module 9 be equipped with respectively with the corresponding module mounting hole 12 of support mounting hole 13, every the module unit passes in proper order through fastener 11 the module mounting hole 12 of upper module 8 support mounting hole 13 with the module mounting hole 12 of lower floor's module 9 is fixed down on the casing 10.

In the installation, because the big or small looks adaptation of base 1's size and lower floor's module 9, the supporting seat 6 of module support supports on the end plate of lower floor's module, fixes a position along the circumference profile when the spacing arch 7 of the base 1 of module support is placed upper module simultaneously, at this moment, upper module 8 with module mounting hole 12 of lower floor's module 9 just is corresponding with support mounting hole 13, passes each hole in proper order through fastener 11 from this and fixes to casing 10 under to accomplish the installation of whole double-deck module promptly, has guaranteed the stability of structure. The module is positioned through the limiting protrusions 7, and the module mounting holes 12 and the support mounting holes 13 are aligned with each other conveniently. And every fastener 11 can fix upper and lower two-layer module simultaneously, can reduce the quantity that spare part used during the installation.

Wherein, the quantity of support mounting hole 13 can set up by oneself according to actual need, in this embodiment, for two module designs of every layer side by side of cooperation, be equipped with 8 support mounting holes 13 on the base 1, evenly distributed is in the four corners of every module, it is equipped with 8 support mounting holes 13 with it equally to correspond on the apron 2.

By adopting the fixing form, the upper layer module and the lower layer module can realize the arrangement of the left-right symmetry and the up-down alignment of the diagram, the whole structure has no eccentric structure, the integrity is good, the rear part of the battery pack is uniformly stressed, the number of parts is saved, and the rigidity of the whole battery pack is improved. Compared with the prior structure, the internal space of the battery pack is saved, and the Z-direction strength and rigidity of the battery pack are improved; the weight of the battery pack is reduced, and the energy density is improved. Meanwhile, as the battery pack needs to be provided with a heating (or cooling) structure and an electrical structure, when two or more module units are arranged on the battery pack, the remaining space between the adjacent module units can be used for arranging the wiring harness.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a module support, its characterized in that is in including base (1) and lock apron (2) on base (1), apron (2) with cooling tube (5) that have inlet (3) and liquid outlet (4) that are used for circulating the coolant liquid are injectd between base (1), inlet (3) and liquid outlet (4) are seted up apron (2) with on any one in base (1), base (1) and/or be equipped with on apron (2) and can install module support in battery module's support mounting hole (13).

2. The module holder according to claim 1, wherein the cooling duct (5) communicates the liquid inlet (3) and the liquid outlet (4) by multiple bends.

3. The module holder according to claim 1, characterized in that the base (1) is recessed to form a continuous, bent-like cavity which, together with the base (1), defines the cooling duct (5) by means of the cover plate (2).

4. A module holder according to claim 1, wherein the cooling duct (5) comprises at least a first duct, the inlet of which is connected to the liquid inlet (3) and the outlet of which is connected to the liquid outlet (4).

5. A module support according to claim 1, characterized in that the base (1) is provided with a support base (6) around it for supporting on a module, and the support mounting holes (13) are provided in the support base (6).

6. The module support according to any one of claims 1-5, characterized in that the base (1) is provided with a limiting protrusion (7) extending upwards and protruding from the cover plate (2) for limiting the module, and the cover plate (2) is provided with a slot for avoiding the limiting protrusion.

7. A battery pack, characterized in that the battery pack comprises at least one module unit, each of which comprises an upper module (8), a lower module (9), and the module holder of any one of claims 1-6 provided between the upper module (8) and the lower module (9).

8. The battery pack according to claim 7, wherein the upper module and the lower module each include two or more modules side by side, and the modules of the upper module and the lower module correspond up and down.

9. The battery pack according to claim 7 or 8, further comprising a lower case (10), wherein two or more of the module units are fixed to the lower case (10).

10. The battery pack according to claim 9, wherein the upper module (8) and the lower module (9) have module mounting holes (12) corresponding to the bracket mounting holes (13) on both sides of the end plates, respectively, and each of the module units is fixed to the lower case (10) by a fastening member (11) sequentially passing through the module mounting hole (12) of the upper module (8), the bracket mounting hole (13), and the module mounting hole (12) of the lower module (9).