CN220544039U - Battery pack and electric equipment - Google Patents

Abstract

The utility model relates to a battery package and consumer, the battery package includes liquid cooling board (1), battery pack (2), heat-proof structure (3) and heat conduction spare (4), battery pack (2) set up on liquid cooling board (1) and including edge battery (21), edge battery (21) heat-proof structure (3) and heat conduction spare (4) are arranged in proper order in the direction of predetermineeing, wherein, heat conduction spare (4) butt be in on liquid cooling board (1), and laminate in heat-proof structure (3). The battery pack can solve the technical problem that the heat dissipation loss of the edge battery is large when the battery pack is in a low-temperature charging heating stage.

Description

Battery pack and electric equipment

Technical Field

The disclosure relates to the technical field of power batteries, in particular to a battery pack and electric equipment.

Background

For electric equipment such as new energy vehicles, different vehicle types may result in different corresponding required battery pack capacities, i.e., different numbers of batteries. When the battery design capacity of a model vehicle is lower than the standard battery pack capacity, but it is desired to share the same battery pack design, it is necessary to reduce the number of batteries and fill the resulting surplus space with filler.

In the related art, a heat insulation structure, such as aerogel, foam, etc., is provided between the edge cells and the filler. When the battery pack is in a low-temperature charging heating stage, the temperature of the heat insulation structure is low, so that heat can be dissipated to the heat insulation structure when the temperature of the battery at the edge is increased, and the temperature of the heat insulation structure is increased. Therefore, the heat dissipation loss of the edge battery is larger, the temperature rising speed of the edge battery is slower, and the low-temperature charging time of the battery pack is prolonged.

Disclosure of Invention

The purpose of this disclosure is to provide a battery package, and this battery package can solve and be in low temperature charging heating stage at the battery package, and marginal battery heat dissipation loss is great technical problem.

In order to achieve the above-mentioned purpose, the present disclosure provides a battery package, including liquid cooling board, battery pack, heat insulation structure and heat conduction spare, battery pack sets up on the liquid cooling board and including the marginal battery, the marginal battery the heat insulation structure with the heat conduction spare is arranged in proper order in the direction of predetermineeing, wherein, the heat conduction spare butt is in on the liquid cooling board, and laminate in the heat insulation structure.

Optionally, the heat conducting member includes a first heat conducting plate attached to the heat insulating structure, and the first heat conducting plate extends in a vertical direction.

Optionally, the heat conducting piece comprises a second heat conducting plate connected with the first heat conducting plate, and the second heat conducting plate extends along the horizontal direction and is abutted against the liquid cooling plate.

Optionally, the heat conducting member is configured as an L-shaped plate, and the first heat conducting plate and the second heat conducting plate are both abutted against the liquid cooling plate.

Optionally, the first heat conducting plate and the second heat conducting plate have thicknesses in the preset direction, and the thickness of the second heat conducting plate is greater than that of the first heat conducting plate.

Optionally, the heat conducting member is made of a metal material.

Optionally, the battery pack includes a filling structure and a tray edge beam, the filling structure being disposed between the heat conductive member and the tray edge beam.

Optionally, the insulation structure comprises a first insulation element made of aerogel and/or a second insulation element made of insulating foam.

Optionally, the battery pack includes a bracket for fixing the wire harness, the bracket is disposed between a first heat insulating member and a second heat insulating member, wherein one of the first heat insulating member and the second heat insulating member is attached to the edge battery, and the other of the first heat insulating member and the second heat insulating member is attached to the first heat conducting plate.

According to a second aspect of the present disclosure, there is provided a powered device comprising a battery pack as described above.

Through above-mentioned technical scheme, in the battery package that this disclosure provided, in the battery package in low temperature charge heating stage, because the heat conduction piece butt is on the liquid cooling board, consequently, the liquid cooling board also can heat the heat conduction piece when heating battery pack. At this time, since the heat insulating structure is disposed between the edge battery and the heat conducting member, and the heat conducting member is attached to the heat insulating structure, the heat of the heat conducting member can be transferred to the heat insulating structure, and the temperature of the heat insulating structure is increased. Thus, the heat transferred from the edge battery to the heat insulation structure can be reduced, thereby reducing the heat dissipation loss of the edge battery, shortening the temperature rise time of the edge battery, enabling the battery pack to be charged with high-rate current earlier, and shortening the charging time of the battery pack at low temperature. That is, the battery pack of the present disclosure can solve the technical problem that the heat dissipation loss of the edge battery is large when the battery pack is in the low-temperature charging heating stage.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:

fig. 1 is an exploded view schematically showing a part of the structure of a battery pack provided according to a first embodiment of the present disclosure;

fig. 2 is a schematic side view of a part of the structure of a battery pack provided according to a first embodiment of the present disclosure;

fig. 3 is a schematic side view of a part of the structure of a battery pack provided according to a second embodiment of the present disclosure;

fig. 4 is a schematic side view of a part of the structure of a battery pack provided according to a third embodiment of the present disclosure.

Description of the reference numerals

1-liquid cooling plate, 2-battery assembly, 21-edge battery, 3-heat insulation structure, 31-first heat insulation piece, 32-second heat insulation piece, 4-heat conduction piece, 41-first heat conduction plate, 42-second heat conduction plate, 5-filling structure, 6-support, 7-tray boundary beam.

Detailed Description

Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.

In this disclosure, unless otherwise indicated, terms of orientation such as "inner and outer" are used to refer to the inner and outer of the contour of the respective component parts themselves. The terms "first" and "second" are used herein to distinguish one element from another without sequence or importance. Moreover, the following description, when referring to the drawings, the same reference numerals in different drawings denote the same or similar elements, and the disclosure is not repeated herein.

According to an exemplary embodiment of the present disclosure, there is provided a battery pack including a liquid cooling plate 1, a battery assembly 2, a heat insulation structure 3, and a heat conductive member 4, as shown in fig. 1 and 2, the battery assembly 2 being disposed on the liquid cooling plate 1 and including an edge battery 21, the heat insulation structure 3, and the heat conductive member 4 being sequentially arranged in a preset direction, wherein the heat conductive member 4 is abutted on the liquid cooling plate 1 and is adhered to the heat insulation structure 3.

Through above-mentioned technical scheme, in the battery package that this disclosure provided, in the battery package at low temperature charge heating stage, because heat conduction spare 4 butt is on liquid cooling board 1, therefore, liquid cooling board 1 also can heat conduction spare 4 when heating battery module 2. At this time, since the heat insulating structure 3 is provided between the edge battery 21 and the heat conducting member 4, and the heat conducting member 4 is attached to the heat insulating structure 3, the heat of the heat conducting member 4 can be transferred to the heat insulating structure 3, and the temperature of the heat insulating structure 3 can be raised. In this way, the heat transferred from the edge battery 21 to the heat insulating structure 3 can be reduced, whereby the heat dissipation loss of the edge battery 21 can be reduced, the temperature rise time of the edge battery 21 can be shortened, the battery pack can be charged with a high-rate current earlier, and the charging time of the battery pack at a low temperature can be shortened. That is, the battery pack of the present disclosure can solve the technical problem that the heat dissipation loss of the edge battery 21 is large when the battery pack is in the low-temperature charge heating stage.

The "edge cell 21" refers to the cell located outermost in each row of cells of the battery assembly 2, that is, the cell located outermost in each row of cells is the edge cell 21. Here, each row of cells includes two edge cells 21, and at this time, referring to fig. 1 and 2, the present disclosure may provide the heat conductive member 4 at the outer side of the heat insulation structure 3 corresponding to at least one edge cell 21 in each row of cells, which is not limited thereto. In addition, it is well known to those skilled in the art that insulation materials in engineering applications are not entirely ideal insulation materials, i.e. structures where the insulation structure 3 is not entirely insulated. When there is a large temperature difference between the heat insulation structure 3 and the edge battery 21, the heat absorption amount of the heat insulation structure 3 cannot be ignored, so that when the battery pack is in a low-temperature charging heating stage and the temperature difference between the heat insulation structure 3 and the edge battery 21 is large, the heat insulation structure 3 can increase the temperature of the battery pack by absorbing the heat of the edge battery 21.

In an exemplary embodiment of the present disclosure, referring to fig. 1 to 4, the battery pack of the present disclosure may further include a filling structure 5 and a tray side rail 7, wherein the filling structure 5 may be disposed between the heat conductive member 4 and the tray side rail 7. Here, the filling structure 5 may be generally made of an insulating material, for example, polypropylene. In the battery package is in low temperature heating stage that charges, owing to the existence of filling structure 5, the heat of tray boundary beam 7 can't transmit to heat insulation structure 3 well, and the heat that the tray boundary beam 7 transmitted to heat insulation structure 3 through filling structure 5 is less promptly, therefore, this disclosure directly heats heat insulation structure 3 through heat-conducting member 4, can solve under the mode that filling structure 5 exists, the heat that the heat insulation structure 3's intensification mainly relies on edge battery 21 to transmit, and lead to the great technical problem of the heat loss of edge battery 21.

In an exemplary embodiment of the present disclosure, referring to fig. 2 to 4, the heat conductive member 4 may include a first heat conductive plate 41 fitted with the heat insulating structure 3, and the first heat conductive plate 41 may extend in a vertical direction. In this way, the arrangement of the first heat-conducting plate 41 can increase the contact area of the heat-conducting member 4 with the heat-insulating structure 3, thereby facilitating the rapid transfer of heat from the first heat-conducting plate 41 to the heat-insulating structure 3.

In some embodiments of the present disclosure, referring to fig. 2 and 4, the heat conductive member 4 may include a second heat conductive plate 42 connected to the first heat conductive plate 41, the second heat conductive plate 42 extending in a horizontal direction and abutting on the liquid cooling plate 1. Thus, by providing the second heat conducting plate 42, the contact area between the heat conducting member 4 and the liquid cooling plate 1 can be increased, and thus, the rapid increase of the temperature of the heat conducting member 4 itself can be facilitated, thereby shortening the time for the heat conducting member 4 to heat the heat insulating structure 3. Of course, in other embodiments of the present disclosure, referring to fig. 3, the heat conductive member 4 may have only the first heat conductive plate 41, and at this time, the first heat conductive plate 41 may abut on the liquid cooling plate 1.

In some embodiments of the present disclosure, referring to fig. 1 and 2, the heat conductive member 4 may be configured as an L-shaped plate, and both the first heat conductive plate 41 and the second heat conductive plate 42 may abut on the liquid cooling plate 1. This can further increase the contact area between the heat conductive member 4 and the liquid cooling plate 1. Of course, in other embodiments, referring to fig. 4, the heat conducting member 4 may be configured as a T-shaped plate, wherein the first heat conducting plate 41 may abut against the liquid cooling plate 1 through the second heat conducting plate 42, and in this case, the first heat conducting plate 41 may not abut against the liquid cooling plate 1.

In some embodiments of the present disclosure, referring to fig. 2 and 4, the first and second heat conductive plates 41 and 42 each have a thickness in a preset direction, and the thickness of the second heat conductive plate 42 may be greater than that of the first heat conductive plate 41. Thus, the thickness of the first heat-conducting plate 41 is thinner, the weight of the heat-conducting plate can be reduced, the thickness of the second heat-conducting plate 42 is thicker, the contact area between the heat-conducting piece 4 and the liquid cooling plate 1 can be ensured, and the second heat-conducting plate 42 is connected with the liquid cooling plate 1. This design makes it possible to achieve both weight reduction and heat conductive performance of the heat conductive member 4. Here, the present disclosure is not limited to a specific thickness of the first heat conductive plate 41 and a specific thickness of the second heat conductive plate 42, and in some embodiments, the thickness of the first heat conductive plate 41 may be 1mm to 3mm, for example, 2mm. The thickness of the second heat conductive plate 42 may be 10mm to 14mm, for example 12mm, which is not limited by the present disclosure.

In an exemplary embodiment of the present disclosure, the heat conductive member 4 may be made of a metal material. In this way, the heat conductive property of the heat conductive member 4 can be improved. Of course, in other embodiments, the heat conductive member 4 may be made of a material with good heat conductive properties, such as heat conductive silica gel or graphene, which is not limited in the present disclosure. In the embodiment in which the heat conductive member 4 includes the first heat conductive plate 41, the first heat conductive plate 41 may be made of a metal material. In the embodiment in which the heat conductive member 4 includes the first heat conductive plate 41 and the second heat conductive plate 42, both the first heat conductive plate 41 and the second heat conductive plate 42 may be made of a metal material.

In an exemplary embodiment of the present disclosure, referring to fig. 1, the battery assembly 2 may include at least two rows of batteries, each row of batteries including an edge battery 21, each edge battery 21 may correspond to one heat conductive member 4, and an insulation structure 3 is provided between each edge battery 21 and the corresponding heat conductive member 4. In this way, the heat dissipation loss of each of the edge cells 21 can be reduced, and thus, the charging time of the battery pack at a low temperature can be further shortened. Of course, in other embodiments, the edge cells 21 on the same side may be associated with one heat conducting member 4 in common, that is, the heat conducting members 4 may extend continuously in the direction of the interval between at least two rows of cells, and at this time, the heat insulating structure 3 on the same side may be attached to one heat conducting member 4 in common. In addition, in some embodiments, each heat conductive member 4 may correspond to one filling structure 5, or a plurality of heat conductive members 4 on the same side may collectively correspond to one filling structure 5, which is not limited by the present disclosure. Of course, the battery assembly 2 of the present disclosure may also include a row of batteries, which the present disclosure is not limited to.

In an exemplary embodiment of the present disclosure, referring to fig. 1 to 4, the insulation structure 3 includes a first insulation member 31, the first insulation member 31 is made of aerogel, and/or the insulation structure 3 includes a second insulation member 32, and the second insulation member 32 is made of insulation foam. Here, the first and/or second heat insulators 31 and 32 may also be made of other materials, which the present disclosure is not limited to.

In some embodiments of the present disclosure, referring to fig. 1 to 4, the battery pack may include a bracket 6 for fixing a wire harness, the bracket 6 being disposed between the first and second heat insulators 31 and 32, wherein one of the first and second heat insulators 31 and 32 is adhered to the edge battery 21, and the other of the first and second heat insulators 31 and 32 is adhered to the first heat conductive plate 41. Here, the heat transferred from the heat conductive member 4 can be transferred to the bracket 6 through the first heat insulating member 31 or the second heat insulating member 32 attached to itself, thereby heating the bracket 6. Here, in an alternative embodiment, the first heat insulator 31 may be attached to the edge battery 21, and the second heat insulator 32 may be attached to the first heat conductive plate 41.

According to a second aspect of the present disclosure, there is provided a powered device comprising a battery pack as described above. The electric equipment has all the beneficial effects of the battery pack, and the disclosure is not repeated here. Under the embodiment that this consumer has above-mentioned battery package, can shorten the charge time of consumer under being in low temperature environment, from this, can promote user experience. Here, the present disclosure is not limited to a particular type of powered device, which may be a vehicle, for example, according to some embodiments. Of course, in other embodiments, the powered device may be an unmanned aerial vehicle or the like. It is understood that the powered device refers to a device that requires battery pack power to perform any movement.

The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.

In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.

Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.

Claims (10)

1. The utility model provides a battery package, its characterized in that includes liquid cooling board, battery pack, heat insulation structure and heat conduction spare, battery pack sets up on the liquid cooling board and including the marginal battery, the marginal battery the heat insulation structure with the heat conduction spare is arranged in proper order in the direction of predetermineeing, wherein, the heat conduction spare butt is in on the liquid cooling board, and laminate in the heat insulation structure.

2. The battery pack of claim 1, wherein the thermally conductive member comprises a first thermally conductive plate conforming to the thermally insulating structure, the first thermally conductive plate extending in a vertical direction.

3. The battery pack according to claim 2, wherein the heat conductive member includes a second heat conductive plate connected to the first heat conductive plate, the second heat conductive plate extending in a horizontal direction and abutting on the liquid cooling plate.

4. The battery pack according to claim 3, wherein the heat conductive member is configured as an L-shaped plate, and the first heat conductive plate and the second heat conductive plate are both abutted against the liquid cooling plate.

5. The battery pack of claim 3, wherein the first and second heat conductive plates each have a thickness in the preset direction, the thickness of the second heat conductive plate being greater than the thickness of the first heat conductive plate.

6. The battery pack according to any one of claims 1 to 5, wherein the heat conductive member is made of a metal material.

7. The battery pack of any one of claims 1-5, wherein the battery pack comprises a filler structure and a tray edge beam, the filler structure disposed between the thermally conductive member and the tray edge beam.

8. The battery pack of any one of claims 1-5, wherein the insulation structure comprises a first insulation member made of aerogel and/or the insulation structure comprises a second insulation member made of insulating foam.

9. The battery pack of claim 8, comprising a bracket for securing a wiring harness, the bracket disposed between a first thermal shield and a second thermal shield, wherein one of the first thermal shield and the second thermal shield is attached to the edge battery and the other of the first thermal shield and the second thermal shield is attached to a first thermally conductive plate.

10. A powered device comprising a battery pack according to any one of claims 1-9.