CN217589091U

CN217589091U - Battery module structure

Info

Publication number: CN217589091U
Application number: CN202123240894.6U
Authority: CN
Inventors: 江有强; 陈郑阳; 卢伟军
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-10-14
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to the technical field of battery module heat dissipation, in particular to a battery module structure, which comprises a heat dissipation bottom plate, a box shell and a battery pack, wherein the heat dissipation bottom plate is provided with a cooling pipeline, and the inner wall of the cooling pipeline is provided with a flow guide supporting column; the box shell is connected with the heat dissipation bottom plate and forms an installation cavity with the heat dissipation bottom plate in an enclosing manner; the battery package sets up through setting up the water conservancy diversion support column inside the cooling tube way in the installation cavity, the coolant liquid shunts after the hindrance of holding during circulation, make the inner wall of the contact cooling tube way that the coolant liquid can be more abundant, make the rivers dispersion, increase and battery package bottom area of contact, make the inside temperature homogenization of battery package, but the thermal shock of reducible temperature variation to battery production, further promote the cooling effect of radiating bottom plate to the battery package, be favorable to improving battery cycle number and life, the water conservancy diversion support column can play the effect of support to the cooling tube way simultaneously, make the cooling tube way can not be packed the pressure loss by the battery and lead to warping and influence refrigerated effect.

Description

Battery module structure

Technical Field

The utility model relates to a battery module heat dissipation technical field especially relates to a battery module structure.

Background

With the increasingly widespread application of new energy technologies, in the fields of power batteries and energy storage, a battery pack is one of the core problems of design as a source of energy storage and conversion. In the operation of system in-process, the battery module can produce more heat, and inside heat accumulation can make the battery package temperature rise, and the battery nonconformity strengthens, reduces the life of battery, can produce the safety problem even, and consequently, the inside thermal management of battery package and heat dissipation are very critical.

The heat radiation structure of battery module among the prior art adopts the interior coolant liquid that injects of cooling pipe, and the cooling pipe inner wall is glossy inner wall, only injects the coolant liquid of sufficient volume and makes the coolant liquid be full of the abundant cooling that just can ensure battery module under the refrigerated condition, often can lead to the insufficient or poor scheduling problem of cooling effect of cooling, and the cooling pipe structure is hollow structure, and intensity is low, yielding leads to the cooling pipe to block, influences the heat dissipation of battery.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery module structure to solve among the prior art battery module structure cooling tube inner wall and be glossy inner wall, only pour into the coolant liquid of sufficient volume and make the coolant liquid be full of under the refrigerated condition just can ensure the abundant cooling of battery module and the low yielding problem that leads to the cooling tube blockage of cooling tube intensity.

To achieve the purpose, the utility model adopts the following technical proposal:

a battery module structure, comprising:

the heat dissipation bottom plate is provided with a cooling pipeline, and a flow guide supporting column is arranged on the inner wall of the cooling pipeline;

the box shell is connected to the heat dissipation bottom plate and forms an installation cavity with the heat dissipation bottom plate in an enclosing mode;

a battery pack disposed in the mounting cavity.

Preferably, the heat dissipation bottom plate comprises a support plate and a heat dissipation plate which are connected with each other, the diversion support columns are arranged on the support plate, a liquid passing groove is concavely formed in one side, close to the support plate, of the heat dissipation plate, and the liquid passing groove and the plate surface of the support plate enclose the cooling pipeline.

Preferably, the liquid passing groove is provided with a liquid inlet end and a liquid discharge end, and the liquid inlet end and the liquid discharge end are communicated to the liquid discharge end in a winding arrangement.

Preferably, the heat dissipation plate is press-formed to form the liquid passing groove.

Preferably, the housing comprises a front panel and a shell which are connected with each other, and the front panel is provided with a plurality of line interfaces.

Preferably, the front panel is further provided with a hanging lug and a handle.

Preferably, the hanging lug and the handle are integrally formed with the front panel through a die-casting process.

Preferably, the battery pack comprises a protective cover, a battery pack and a heat conducting gel sheet which are sequentially abutted from top to bottom, and the heat conducting gel sheet is abutted to the cooling pipeline.

Preferably, the battery pack comprises a plurality of battery cells arranged side by side and a packing belt wound around the plurality of battery cells.

Preferably, the baling belt is further sleeved with an insulating member, and the insulating member abuts against the box shell.

The utility model has the advantages that: the battery module structure that this embodiment provided, through at the inside water conservancy diversion support column that sets up of cooling pipeline, the coolant liquid shunts after the hindrance that lives through supporting during circulation, make the inner wall of the contact cooling pipeline that the coolant liquid can be more abundant, make the rivers dispersion, increase and battery package bottom area of contact, make the inside temperature homogenization of battery package, can be in a comparatively steady temperature environment for a long time, reducible temperature variation is to the thermal shock that the battery produced, further promote the cooling effect of radiating bottom plate to the battery package, be favorable to improving battery cycle number and life, the water conservancy diversion support column can play the effect of support to cooling pipeline simultaneously, make cooling pipeline can not be packed the pressure loss by the battery and lead to warping and influence refrigerated effect.

Drawings

Fig. 1 is an exploded view of the overall structure of a battery module structure according to the present invention;

fig. 2 is an exploded view of a heat dissipation base plate in a battery module structure according to the present invention;

FIG. 3 is an enlarged view of the arrangement of the flow guiding support columns at A in FIG. 2;

fig. 4 is an exploded view of a battery pack structure in a battery module structure according to the present invention;

fig. 5 is an axonometric view of the whole structure of the battery module structure of the present invention.

In the figure:

1. a heat dissipation base plate; 11. a support plate; 111. a flow guiding support column; 12. a heat dissipation plate; 121. a liquid passing groove; 100. a cooling pipeline;

2. a box shell; 21. a front panel; 22. a housing; 211. a line interface; 212. a handle;

3. a battery pack; 31. a protective cover; 32. a battery pack; 33. a thermally conductive gel sheet; 321. an electric core; 322. packing a belt; 323. an insulating member.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection or a detachable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to fig. 5, the present embodiment provides a battery module structure, which includes a heat dissipation bottom plate 1, a case housing 2, and a battery pack 3, where the heat dissipation bottom plate 1 has a cooling pipeline 100, and an airflow guiding support column 111 is disposed on an inner wall of the cooling pipeline 100; the box shell 2 is connected with the heat dissipation bottom plate 1 and forms an installation cavity with the heat dissipation bottom plate 1 in an enclosing mode; the battery pack 3 is arranged in the installation cavity, specifically, in this embodiment, the diversion support columns 111 are rectangular, the support is more stable, two diversion support columns 111 are arranged as a set, the two diversion support columns 111 are arranged oppositely and obliquely along the extending direction of the cooling pipeline 100, a plurality of sets of diversion support columns 111 are arranged at intervals along the extending direction of the cooling pipeline 100, and the diversion effect on the cooling liquid is better.

The battery module structure that this embodiment provided, through at the inside water conservancy diversion support column 111 that sets up of cooling pipeline 100, the coolant liquid shunts after the hindrance of water conservancy diversion support column 111 when circulating, make the inner wall of contact cooling pipeline 100 that the coolant liquid can be more abundant, the coolant liquid dispersion, promote the cooling effect of cooling pipeline 100, make the inside temperature homogenization of battery package 3, can be in a comparatively steady temperature environment for a long time, reducible temperature variation is to the thermal shock that the battery produced, be favorable to improving battery cycle number and life, water conservancy diversion support column 111 can play the effect of support to cooling pipeline 100 simultaneously, make cooling pipeline 100 can not lead to warping and influence the circulation of coolant liquid by 3 pressure losses of battery package.

Specifically, the heat dissipation bottom plate 1 includes a support plate 11 and a heat dissipation plate 12 that are connected to each other, the fluid guiding support column 111 is disposed on the support plate 11, a fluid passing groove 121 is concavely disposed on one side of the heat dissipation plate 12 close to the support plate 11, the fluid passing groove 121 and the plate surface of the support plate 11 enclose to form a cooling pipeline 100, further, the connection between the support plate 11 and the heat dissipation plate 12 adopts a vacuum brazing or diffusion welding process, under a high temperature environment, two parts of metals of the support plate 11 and the heat dissipation plate 12 are mutually dissolved, the fluid passing groove 121 and the plate surface of the support plate 11 form a sealed cooling pipeline 100, which does not generate welding slag, and has a good sealing effect.

Furthermore, the liquid passing groove 121 has a liquid inlet end and a liquid outlet end, and is arranged and communicated to the liquid outlet end from the liquid inlet end in a roundabout manner, in this embodiment, the liquid passing groove 121 is arranged in a snake shape, and is provided with three circular arcs bent, in other embodiments, the number of the circular arcs bent of the liquid passing groove 121 and the arrangement density may be set as required according to the size specification and the number of the battery packs 3, or other shape arrangement structures may be adopted, without excessive limitation.

Specifically, the liquid passing groove 121 is formed by stamping the heat dissipation plate 12, machining efficiency is high, materials are saved, other extra parts are not needed to be installed, meanwhile, the sealing performance of the liquid passing groove 121 is good, no extra installation holes are formed in the surface of the inner wall, and cooling liquid is guaranteed not to be leaked.

Specifically, the case 2 includes a front panel 21 and a casing 22 that are connected to each other, a plurality of line interfaces 211 are opened on the front panel 21 for wiring of the battery pack 3, the front panel 21 and the case 2 are fixedly connected through a plurality of bolts, the front panel 21 and the case 2 can use materials such as a380 and ADC12, and the manufacturing cost is low.

Specifically, the front panel 21 is further provided with a hanging lug for mounting the battery module on the side wall of the device, and a handle 212 for lifting the battery module integrally in the moving or carrying process.

Specifically, the hanging lug, the handle 212 and the front panel 21 are integrally formed through a die-casting process, additional locking screws are not needed, the failure problem caused by long-term use can be effectively avoided, the integrity is good, and the structure is firm.

Specifically, the battery pack 3 includes a protection cover 31, a battery pack 32 and a heat conducting gel sheet 33 which are sequentially abutted from top to bottom, the heat conducting gel sheet 33 is abutted to the cooling pipeline 100, the protection cover 31 can prevent dust from falling into the battery pack 32, and the heat conducting gel sheet 33 can further improve the heat dissipation effect of the battery pack 32.

Specifically, the battery pack 32 includes a plurality of battery cells 321 arranged side by side and a packing tape 322, and is wrapped around the plurality of battery cells 321 to prevent the battery cells 321 from loosening and falling off.

Specifically, still overlap on the packing area 322 and be equipped with insulating part 323, insulating part 323 butt in case shell 2, and further, insulating part 323 is the insulated column, adopts rubber or plastic materials to make, is provided with two battery packages 3 in the battery module structure of this embodiment, all is provided with the insulated column between two battery packages 3 and between battery package 3 and the case shell 2, can effectively prevent that electric core 321 electric leakage from leading to operating personnel to electrocute.

It is to be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A battery module structure, comprising:

the heat dissipation base plate (1) is provided with a cooling pipeline (100), and a flow guide supporting column (111) is arranged on the inner wall of the cooling pipeline (100);

the box shell (2) is connected to the heat dissipation bottom plate (1) and encloses a mounting cavity together with the heat dissipation bottom plate (1);

a battery pack (3) disposed in the mounting cavity.

2. The battery module structure according to claim 1, wherein the heat dissipation bottom plate (1) comprises a support plate (11) and a heat dissipation plate (12) which are connected with each other, the flow guiding support columns (111) are arranged on the support plate (11), one side of the heat dissipation plate (12) close to the support plate (11) is concavely provided with a liquid passing groove (121), and the liquid passing groove (121) and the plate surface of the support plate (11) enclose the cooling pipeline (100).

3. The battery module structure according to claim 2, wherein the liquid passing groove (121) has a liquid inlet end and a liquid outlet end, and the liquid inlet end is communicated to the liquid outlet end in a winding arrangement.

4. The battery module structure according to claim 2, wherein the heat dissipation plate (12) is press-formed to form the overflowing liquid tank (121).

5. The battery module structure according to claim 1, wherein the housing (2) comprises a front panel (21) and a housing (22) connected to each other, and the front panel (21) is provided with a plurality of line interfaces (211).

6. The battery module structure according to claim 5, wherein the front panel (21) is further provided with a lug and a handle (212).

7. The battery module structure according to claim 6, wherein the lugs and the handle (212) are integrally formed with the front panel (21) through a die-casting process.

8. The battery module structure according to any one of claims 1 to 7, wherein the battery pack (3) comprises a protective cover (31), a battery pack (32) and a thermally conductive gel sheet (33) which are abutted in this order from top to bottom, and the thermally conductive gel sheet (33) is abutted against the cooling duct (100).

9. The battery module structure according to claim 8, wherein the battery pack (32) comprises a plurality of battery cells (321) arranged side by side and a packing tape (322), and the packing tape (322) is wound around the plurality of battery cells (321).

10. The battery module structure according to claim 9, wherein the packing belt (322) is further sleeved with an insulating member (323).