CN218472217U - Battery pack and vehicle - Google Patents

Abstract

The utility model discloses a battery package and vehicle, the battery package includes: a battery pack; the cooling plate is arranged on one side of the battery pack along a first direction and used for dissipating heat of the battery pack; the first connecting portion of the busbar is connected with the battery pack, and the second connecting portion of the busbar extends to one side surface of the cooling plate, which is away from the battery pack. According to the utility model discloses a battery package, through the downside of locating the group battery with the busbar, the battery package of being convenient for is connected with whole car, has simplified the structure of battery package, has reduced the assembly degree of difficulty of battery package, and the downside surface of cooling plate is located to the busbar, and the cooling plate dispels the heat to the busbar in the radiating while to the group battery, has avoided the busbar to heat up, has improved the security performance of battery package, has reduced the danger coefficient of battery package.

Description

Battery pack and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle manufacturing technique and specifically relates to a battery package and vehicle are related to.

Background

It is noted in the related art that the busbars in existing power batteries, battery packs, are typically placed above or to the side of the battery pack. The busbar is because transmission current, generates heat easily, and traditional scheme also is difficult to carry out the structural design in the aspect of the heat dissipation to the busbar because inclusion cooling plate generally is located the inclusion bottom, and the busbar of traditional scheme generally is located near whole package inside wall or module upper portion, and busbar and cooling plate can't contact.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a battery pack, battery pack simple structure, cooling effect are good, factor of safety is high.

The utility model discloses still provide a vehicle that has above-mentioned battery package.

According to the utility model discloses battery package of first aspect includes: a battery pack; the cooling plate is arranged on one side of the battery pack along a first direction and used for dissipating heat of the battery pack; the busbar comprises a first connecting portion and a second connecting portion connected with the first connecting portion, the first connecting portion is connected with the battery pack, and the second connecting portion extends to one side surface, away from the battery pack, of the cooling plate.

According to the utility model discloses a battery package, through locating a side surface of group battery with the busbar, the battery package of being convenient for is connected with whole car, has simplified the structure of battery package, has reduced the assembly degree of difficulty of battery package, and the busbar locates a side surface that the cooling plate is kept away from the group battery, and the cooling plate dispels the heat to the busbar in to the radiating while of group battery, has avoided the busbar to heat up, has improved the security performance of battery package, has reduced the danger coefficient of battery package.

In some embodiments, the first connecting portion and the second connecting portion have an included angle therebetween, and the second connecting portion is in fit connection with the cooling plate.

In some embodiments, the battery pack further comprises: and the heat conducting piece is arranged between the bus bar and one side surface of the cooling plate, which is away from the battery pack.

In some embodiments, the heat conducting member is a heat conducting glue.

In some embodiments, the battery pack further comprises: the casing, the casing includes diapire and lateral wall, the lateral wall encloses to be established the week portion of diapire and with the diapire forms jointly the accommodation space of group battery, the group battery supports on the diapire, the cooling plate sets up between group battery and the diapire, the diapire orientation one side of cooling plate is formed with the holding tank, the second connecting portion of busbar are located in the holding tank.

In some embodiments, a plurality of ribs are formed on the bottom wall of the housing, the receiving groove is defined between at least two adjacent ribs, and the cooling plate is supported on the ribs.

In some embodiments, the plurality of ribs includes a plurality of first ribs and a plurality of second ribs, the receiving groove is defined between two adjacent first ribs, and one end of at least one second rib is connected to the first rib.

In some embodiments, the depth of the receiving groove is greater than the thickness of the buss bar.

In some embodiments, the cooling plate is welded to the housing.

According to the utility model discloses vehicle of second aspect, include according to the utility model discloses the battery package of first aspect.

According to the utility model discloses a vehicle is through setting up the battery package of above-mentioned first aspect to reduce the danger coefficient of vehicle, improved the security performance of vehicle.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic diagram of a battery pack according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a front view of the battery pack shown in fig. 1;

fig. 3 isbase:Sub>A schematic view ofbase:Sub>A-base:Sub>A section of the battery pack shown in fig. 2;

FIG. 4 is a schematic view of the battery pack housing shown in FIG. 2;

fig. 5 is an assembled schematic view of the cooling plate shown in fig. 2.

Reference numerals:

100. a battery pack;

1. a battery pack;

2. a cooling plate;

3. a bus bar;

4. a heat conductive member;

5. a housing; 51. accommodating grooves; 52. a rib is protruded; 521. a first convex rib; 522. a second rib;

53. a bottom wall; 54. a side wall;

6. and (7) a plug connector.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A battery pack 100 according to an embodiment of the first aspect of the present invention is described below with reference to fig. 1 to 5.

As shown in fig. 4 and 5, a battery pack 100 according to an embodiment of the first aspect of the present invention includes: a battery pack 1, a cooling plate 2, and a bus bar 3.

Specifically, the cooling plate 2 is provided on one side of the battery pack 1 in a first direction (vertical direction as shown in fig. 1) for dissipating heat from the battery pack 1, and the bus bar 3 includes a first connecting portion and a second connecting portion connected to the first connecting portion, the first connecting portion of the bus bar 3 is connected to the battery pack 1, and the second connecting portion of the bus bar 3 extends to a side surface of the cooling plate 2 facing away from the battery pack 1. As shown in fig. 3, the lower side of the battery pack 1 is provided with a cooling plate 2, the cooling plate 2 serves to dissipate heat from the battery pack 1, the upper end of the bus bar 3 is connected to the battery pack 1, and the lower end of the bus bar 3 extends to the lower side surface of the cooling plate 2. Therefore, the battery pack 100 has a simple structure, is convenient to produce and manufacture, and has a good heat dissipation effect.

According to the utility model discloses battery package 100, through locating a side surface of group battery 1 with busbar 3, be convenient for battery package 100 and whole car connection, the structure of battery package 100 has been simplified, the assembly degree of difficulty of battery package 100 has been reduced, and busbar 3 locates a side surface that cooling plate 2 deviates from group battery 1, cooling plate 2 dispels the heat to busbar 3 in 1 radiating while to group battery, it heaies up to have avoided busbar 3, the security performance of battery package 100 has been improved, the danger coefficient of battery package 100 has been reduced.

In some embodiments of the present invention, an included angle is formed between the first connecting portion and the second connecting portion, and the second connecting portion is attached to the cooling plate 2. Thereby, the entire volume of the battery pack 100 is reduced, and the bus bar 3 is attached to the cooling plate 1 to facilitate control of the temperature rise of the bus bar 3.

In some embodiments of the present invention, as shown in fig. 3 to 5, the second connecting portion of the bus bar 3 (e.g., the lower end of the bus bar 3 as shown) extends along one side surface of the cooling plate 2 away from the battery pack 1. That is, the lower end of the bus bar 3 extends along the lower side surface of the cooling plate 2 away from the battery pack 1. From this, increased the area of contact between cooling plate 2 and the busbar 3, promoted cooling plate 2 to the cooling effect of busbar 3, reduced the temperature rise of busbar 3, design benefit, and simple structure.

In some embodiments of the present invention, the battery pack 100 further comprises: the heat-conducting member 4, the bus bar 3 is connected to the lower side surface of the cooling plate 2 through the heat-conducting member 4. Therefore, the heat conducting piece 4 transfers the heat generated by the bus bar 3 to the cooling plate 2, the bus bar 3 is not in direct contact with the cooling plate 2, the possibility of electric leakage is avoided, and the safety performance of the battery pack 100 is improved.

The utility model discloses an in some embodiments, the quality of heat-conducting glue is light, and is with low costs, and makes things convenient for the shaping, therefore heat-conducting piece 4 is heat-conducting glue to reduce battery package 100's whole weight, reduced battery package 100's manufacturing cost.

In some embodiments of the present invention, the battery pack 100 further comprises: the housing 5, the housing 5 includes a bottom wall 53 and a side wall 54, the side wall 54 surrounds the periphery of the bottom wall 53 and forms an accommodating space of the battery pack 1 together with the bottom wall 53, the battery pack 1 is supported on the bottom wall 53, the cooling plate 2 is disposed between the battery pack 1 and the bottom wall 53, an accommodating groove 51 is formed on one side of the bottom wall 53 facing the cooling plate 2, and the second connecting portion of the bus bar 3 is disposed in the accommodating groove. As shown in fig. 1, the battery pack 1 is provided in a case 5, the cooling plate 2 is provided between the bottom wall of the case 5 and the bottom surface of the battery pack 1, and the bus bar 3 is provided between the cooling plate 2 and the case 5. From this, simple structure in the battery package 100 has reduced the assembly degree of difficulty, and the workman's assembly of being convenient for has improved assembly speed, has promoted production efficiency, has reduced manufacturing cost, and bus bar 3 has avoided bus bar 3 to take place the displacement in transportation or use in locating holding tank 51, has reduced the fault rate of battery package 100.

In some embodiments of the present invention, as shown in fig. 4, a plurality of ribs 52 are formed on the bottom wall of the housing 5, a receiving groove 51 is defined between at least two adjacent ribs 52, and the cooling plate 2 is supported on the ribs 52. Therefore, the cooling plate 2 is supported on the convex rib 52, the bus bar 3 is prevented from being contacted with the cooling plate 2 to cause electric leakage, the cooling plate 2 is prevented from extruding the bus bar 3 to cause a short circuit fault, and the use safety of the battery pack 100 is ensured.

In some embodiments of the present invention, as shown in fig. 4, the plurality of ribs 52 include a plurality of first ribs 521 and a plurality of second ribs 522, the accommodating groove 51 is defined between two adjacent first ribs 521, and one end of at least one second rib 522 is connected to the first rib 521. Therefore, the first convex rib 521 and the second convex rib 522 support the cooling plate 2 at the same time, and the cooling plate 2 is prevented from extruding the bus bar 3, so that the short circuit of the battery pack 100 is avoided, and the safety coefficient of the battery pack 100 is improved.

In some embodiments, the ribs 52 may be formed by injection molding, die cutting, or other manufacturing processes; the ribs 52 may be attached to the housing 5 by fastening, bonding or welding.

Further, the cooling plate 2 may be manufactured by a stamping, brazing, or the like.

In some embodiments of the present invention, the depth of the accommodating groove 51 is greater than the thickness of the bus bar 3. Like this, busbar 3 can be located holding tank 51 completely, and it is impaired to have avoided busbar 3 to exceed holding tank 51, also reserves the position for heat-conducting glue simultaneously for heat-conducting glue can attached busbar 3 and cooling plate 2 completely, has improved the radiating ability of heat conduction, has promoted the radiating effect of heat conduction.

The utility model discloses an in some embodiments, the welded connection mode is simple, and production efficiency is high, and low in production cost, consequently, cooling plate 2 and 5 welded connection of casing. Preferably, the cooling plate 2 and the housing 5 are joined using friction stir welding.

In some embodiments, the battery pack 100 further includes a plug 6, the plug 6 is disposed on the bottom wall of the housing 5, one end of the bus bar 3 is connected to the battery pack 1, and the other end of the bus bar 3 is connected to the plug 6. Therefore, the battery pack 100 is simple in structure, convenient to connect with the whole vehicle and capable of reducing the assembly difficulty of the whole vehicle.

A battery pack 100 according to an embodiment of the present invention, which is a battery pack on a MHEV (hybrid electric vehicle), will be described below with reference to fig. 1 to 5.

Referring to fig. a, the battery pack 100 includes: the battery pack comprises a battery pack 1, a cooling plate 2, a bus bar 3, a heat conducting member 4, a plug connector 6 and a shell 5.

Specifically, group battery 1, cooling plate 2, heat-conducting piece 4 and busbar 3 all locate in casing 5, the downside of group battery 1 is equipped with cooling plate 2, cooling plate 2 is used for dispelling the heat for group battery 1, the upper end of busbar 3 links to each other with group battery 1, the lower extreme of busbar 3 extends to the downside surface of cooling plate 2 and extends along the downside surface of cooling plate 2, heat-conducting piece 4 is located between heat-conducting piece 4 and the cooling plate 2, and all link to each other with heat-conducting piece 4 and cooling plate 2, be formed with a plurality of protruding muscle 52 on the diapire of casing 5, inject holding tank 51 between two at least adjacent protruding muscle 52, group battery 3 locates in holding tank 51, and the degree of depth of holding tank 51 is greater than the thickness of busbar 3, plug connector 6 links to each other with the lower extreme of group battery 3.

In other embodiments, the battery pack can also be a HEV (hybrid electric vehicle), a PHEV (plug-in hybrid electric vehicle), a BEV (pure electric vehicle)

According to the embodiment of the second aspect of the present invention, the vehicle includes the battery pack 100 according to the embodiment of the first aspect of the present invention.

According to the utility model discloses the vehicle is through setting up the battery package 100 of above-mentioned first aspect embodiment to reduce the danger coefficient of vehicle, improved the security performance of vehicle.

Specifically, after the bus bars 3 of the battery pack 100 are led out from the conductive terminals of the battery pack 100, the bus bars 3 pass through the bottom of the battery pack 100, and may be connected to connectors at the bottom, or connected to other battery packs to connect the battery packs in series, or connected to other modules such as a distribution box. Therefore, the battery 100 is convenient to connect with a vehicle, the assembly difficulty of the vehicle is reduced, the whole vehicle structure is simple, and the maintenance is convenient.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A battery pack, comprising:

a battery pack;

the cooling plate is arranged on one side of the battery pack along a first direction and used for dissipating heat of the battery pack;

the busbar comprises a first connecting portion and a second connecting portion connected with the first connecting portion, the first connecting portion is connected with the battery pack, and the second connecting portion extends to one side surface, away from the battery pack, of the cooling plate.

2. The battery pack of claim 1, wherein the first connecting portion and the second connecting portion form an included angle therebetween, and the second connecting portion is attached to the cooling plate.

3. The battery pack according to claim 2, further comprising: and the heat conducting piece is arranged between the bus bar and one side surface of the cooling plate, which is away from the battery pack.

4. The battery pack according to claim 3, wherein the heat conductive member is a heat conductive paste.

5. The battery pack of any one of claims 1-4, further comprising: the casing, the casing includes diapire and lateral wall, the lateral wall encloses to be established the week portion of diapire and with the diapire forms jointly the accommodation space of group battery, the group battery supports on the diapire, the cooling plate sets up between group battery and the diapire, the diapire orientation one side of cooling plate is formed with the holding tank, the second connecting portion of busbar are located in the holding tank.

6. The battery pack of claim 5, wherein the bottom wall of the housing has a plurality of ribs formed thereon, at least two adjacent ribs defining the receiving groove therebetween, the cooling plate being supported on the ribs.

7. The battery pack according to claim 6, wherein the plurality of ribs includes a plurality of first ribs and a plurality of second ribs, the receiving groove is defined between two adjacent first ribs, and one end of at least one second rib is connected to the first rib.

8. The battery pack of claim 6, wherein the depth of the receiving groove is greater than the thickness of the bus bar.

9. The battery pack of claim 5, wherein the cooling plate is welded to the housing.

10. A vehicle characterized by comprising a battery pack according to any one of claims 1-9.

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