CN217934023U

CN217934023U - Battery device

Info

Publication number: CN217934023U
Application number: CN202221950098.3U
Authority: CN
Inventors: 赵冬
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2022-11-29
Anticipated expiration: 2032-07-26

Abstract

The present disclosure relates to the field of battery technology, and discloses a battery device; the battery device comprises a single battery and a temperature adjusting structure; the single battery comprises a battery body and a battery pole, wherein the battery pole is connected with the battery body and protrudes out of the battery body; the temperature regulation structure is arranged on one side of the battery body, which is provided with the battery pole, the orthographic projection of the temperature regulation structure on the reference plane is at least partially overlapped with the orthographic projection of the battery pole on the reference plane, and the reference plane is perpendicular to the direction of the temperature regulation structure pointing to the battery pole and is parallel to the direction of the battery pole pointing to the battery body. The space utilization rate of the battery device is high, and the energy density of the battery device is improved; and the temperature regulation structure can regulate the temperature of the single battery, and the requirement of the single battery on the temperature is met.

Description

Battery device

Technical Field

The present disclosure relates to the field of battery technologies, and particularly, to a battery device.

Background

With the rapid development of modern industry, the problems of environmental pollution, energy shortage, resource exhaustion and the like are more and more prominent. In order to maintain the sustainable development of economy, protect the environment and energy supply of human living, zero emission of the battery device is the first choice as a new energy source.

However, the space utilization of the current battery device is low.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

SUMMERY OF THE UTILITY MODEL

The present disclosure is directed to overcome the above-mentioned disadvantage of low space utilization in the related art, and to provide a battery device with high space utilization.

According to an aspect of the present disclosure, there is provided a battery device including:

the single battery comprises a battery body and a battery pole, wherein the battery pole is connected with the battery body and protrudes out of the battery body;

temperature regulation structure locates battery body is provided with one side of battery utmost point post, temperature regulation structure orthographic projection on reference plane with battery utmost point post is in at least partial overlap of orthographic projection on the reference plane, reference plane with temperature regulation structure is directional the direction of battery utmost point post is perpendicular, and with battery body is directional the direction of battery utmost point post is parallel.

This disclosed battery device, on the one hand, because battery utmost point post salient in battery body, battery utmost point post can not cover the one side of being provided with battery utmost point post of battery body completely moreover, consequently, still is formed with the accommodation gap in one side of being provided with battery utmost point post of battery body, is provided with the temperature regulation structure in one side of being provided with battery utmost point post of battery body to make the temperature regulation structure occupy the accommodation gap, and then improve battery device's space utilization, improve battery device's energy density. On the other hand, the temperature has important influence to battery cell, and low or too high temperature not only can lead to battery cell performance to descend, unable normal work, and too high temperature still can lead to battery cell to burst moreover, causes the incident, consequently, the temperature regulation structure can be adjusted battery cell's temperature, satisfies battery cell to the requirement of temperature, further guarantees battery performance and safe handling.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

Fig. 1 is a schematic perspective view of an exemplary embodiment of a battery device according to the present disclosure.

Fig. 2 is a schematic perspective view of the battery device in fig. 1 with the battery box removed.

Fig. 3 is a schematic cross-sectional structural view of another exemplary embodiment of a battery device according to the present disclosure.

Fig. 4 is a schematic structural view of a battery case and a reinforcing structure of the battery device in fig. 3.

Description of the reference numerals:

1. a single battery; 11. a battery body; 12. a battery terminal; 13. a groove; 1a, a first single battery; 1b, a second single battery;

2. a temperature regulating structure;

3. a battery box; 31. a protective cover; 32. a base plate; 33. a side plate; 34. a cross beam; 35. a stringer; 36. a frame beam;

4. a reinforcing structure; 41. a reinforcing beam; 42. a reinforcing plate;

5. a limiting structure; 51. a limiting beam; 52. a limiting plate;

z, third direction.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be understood that if the illustrated device is turned upside down, elements described as "upper" will be those that are "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.

The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and "third," etc. are used merely as labels, and are not limiting on the number of their objects.

In this application, unless expressly stated or limited otherwise, the term "coupled" is to be construed broadly, e.g., "coupled" may be a fixed connection or a releasable connection or may be integral; may be directly connected or indirectly connected through an intermediate. "and/or" is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter associated objects are in an "or" relationship.

The disclosed example embodiment provides a battery device, which may include a unit battery 1 and a temperature adjustment structure 2, as shown in fig. 1 to 4; the single battery 1 may include a battery body 11 and a battery post 12, wherein the battery post 12 is connected to the battery body 11 and protrudes from the battery body 11; the temperature adjusting structure 2 is arranged on one side, provided with the battery post 12, of the battery body 11, the orthographic projection of the temperature adjusting structure 12 on the reference plane is at least partially overlapped with the orthographic projection of the battery post 12 on the reference plane, and the reference plane is perpendicular to the direction of the temperature adjusting structure 12 pointing to the battery post 12 and is parallel to the direction of the battery body 11 pointing to the battery post 12.

This disclosed battery device, on the one hand, because battery utmost point post 12 salient in battery body 11, battery utmost point post 12 can not cover battery body 11's the one side that is provided with battery utmost point post 12 completely moreover, consequently, still be formed with the accommodation gap in one side that is provided with battery utmost point post 12 of battery body 11, be provided with temperature regulation structure 2 in one side that is provided with battery utmost point post 12 of battery body 11 to make temperature regulation structure 2 occupy the accommodation gap, and then improve battery device's space utilization, improve battery device's energy density. On the other hand, the temperature has important influence to battery cell 1, and excessively low or high temperature not only can lead to battery cell 1 performance to descend, unable normal work, and excessively high temperature still can lead to battery cell 1 to burst moreover, causes the incident, consequently, temperature regulation structure 2 can adjust battery cell 1's temperature, satisfies battery cell 1 to the requirement of temperature, further guarantees battery performance and safe handling.

In the present exemplary embodiment, referring to fig. 1, 3 and 4, the battery device may include a battery box 3, the battery box 3 may include a bottom plate 32, a protective cover 31 and four side plates 33, the bottom plate 32 and the protective cover 31 may be configured in a rectangular shape, the four side plates 33 are disposed around the bottom plate 32, the four side plates 33 are connected end to form a rectangular ring, the protective cover 31 is disposed on the other side of the four side plates 33, and the protective cover 31 is disposed opposite to the bottom plate 32. The bottom plate 32, the protective cover 31, and the four side plates 33 surround to form a receiving space.

Of course, in other example embodiments of the present disclosure, the bottom plate 32 and the protective cover 31 may be provided in a circular shape, an oval shape, a trapezoidal shape, etc., and the side plates 33 may be provided in one or more shapes and formed in a circular shape, an oval shape, a trapezoidal shape, etc., so that the battery case 3 is formed in a cylindrical shape, an oval cylindrical shape, a prismatic shape, etc. The battery box 3 may also have other shapes, which are not described herein.

In some example embodiments, as shown in fig. 3 and 4, the battery box 3 may further include four frame beams 36, the four frame beams 36 are disposed on one side of the four side plates 33 close to the accommodating space in a one-to-one correspondence, and the four frame beams 36 are connected end to form a circle. At least one cross beam 34 may also be disposed within the receiving space, with the at least one cross beam 34 dividing the receiving space into at least two receiving chambers. At least one longitudinal beam 35 may be further disposed in the accommodating space, and the at least one longitudinal beam 35 divides the accommodating space into at least two accommodating cavities. The extension direction of the cross beam 34 and the extension direction of the longitudinal beam 35 may intersect, for example, may be perpendicular. In the accommodating space, only the cross beam 34 may be provided, only the longitudinal beam 35 may be provided, or both the cross beam 34 and the longitudinal beam 35 may be provided, in which case the accommodating space may be divided into more accommodating chambers, for example, one cross beam 34 and one longitudinal beam 35 divide the accommodating space into four accommodating chambers. The transverse beams 34 and/or the longitudinal beams 35 can increase the strength of the battery box 3, and ensure the protection effect on the single batteries 1 in the battery box.

In the present exemplary embodiment, a plurality of unit batteries 1 are disposed in one accommodation chamber, and the unit batteries 1 may include a battery body 11 and a battery post 12, and the like. The battery body 11 may include a battery case and a battery cell.

Referring to fig. 2, the battery housing may include two opposite first surfaces and four second surfaces disposed around the first surfaces, that is, the battery housing has an approximately rectangular structure, the area of the first surface is larger than that of the second surface, and the battery post 12 is disposed on the first surface, so that the battery post 12 can have a reliable supporting surface, thereby ensuring the stability of the battery post 12.

It should be noted that the two opposing first surfaces are large surfaces of the battery case, and the four second surfaces are small surfaces of the battery case, the four second surfaces include two pairs of small surfaces, i.e., a first pair of small surfaces extending in the length direction of the battery case and a second pair of small surfaces extending in the width direction of the battery case, and the areas of the first pair of small surfaces are larger than the areas of the second pair of small surfaces, but are smaller than the areas of the large surfaces (first surfaces).

Referring to fig. 2 and 3, the battery case may be provided with two grooves 13, and the two grooves 13 and the two battery posts 12 may be respectively located on two opposite surfaces of the battery case. At this time, when the single batteries 1 are grouped, the battery post 12 of another adjacent single battery 1 is received in the groove 13, for example, the two adjacent single batteries are a first single battery 1a and a second single battery 1b, and the battery post 12 of the second single battery 1b is located in the groove 13 of the first single battery 1 a; thereby increasing the energy density of the battery pack.

Of course, in other example embodiments of the present disclosure, the battery case may be further configured as a cylinder, a prism, a truncated cone, and other structures as needed, which is not described herein again. The material of the battery case may be aluminum, steel, or other metal and alloy materials, and of course, other materials may be used, which are not described herein.

In the present exemplary embodiment, a battery cell is provided in the accommodating portion of the battery case, and the battery cell is provided as a rectangular parallelepiped adapted to the battery case. Be provided with the electric core protection film outside electric core, the electric core protection film sets up to the cuboid tube-shape with electric core looks adaptation, is provided with the electric core bottom plate in the bottom of electric core, and electric core bottom plate makes to be insulating between electric core and the battery casing with electric core protection film.

Two battery poles 12, namely a positive pole and a negative pole, are arranged on one side of the battery cell close to the first surface. The positive and negative posts may protrude from the first surface out of the battery case such that the battery post 12 is connected to the battery body 11 and protrudes from the battery body 11.

An explosion-proof valve can be arranged between the positive pole column and the negative pole column. The explosion-proof valve can be the weak structure of setting on the top surface, and after electric core emergence thermal runaway, high temperature gas, mars and high temperature solid particulate matter can break through the weak structure (explosion-proof valve) on the battery case, spout from weak structure department. The weak structure can be a scratch or a notch arranged on the top surface; the thickness of the top surface at the explosion-proof valve can be smaller than the thickness of the top surfaces at other positions, so that high-temperature gas, sparks and high-temperature solid particles can firstly burst the explosion-proof valve to be sprayed out.

At least two unit cells 1 are stacked in the third direction Z to form a set. In some example embodiments, referring to fig. 1 and 2, the battery post 12 is disposed toward the protective cover 31, i.e., the battery post 12 is located on a side of the battery body 11 near the protective cover 31. Between the battery body 11 of the uppermost battery cell 1 and the protective cover 31 of the battery box 3, a certain receiving gap is formed, which is used to receive the battery post 12, but the rest of the receiving gap is not occupied. The third direction Z is a direction from the bottom plate 32 to the protective cover 31, and of course, the third direction Z is also a direction from the protective cover 31 to the bottom plate 32.

In addition, in other example embodiments of the present disclosure, the unit batteries 1 may be provided as one; in the case where the unit cells 1 may be provided in plural, it may be that one unit cell 1 forms a group, that is, the unit cells 1 are not sequentially stacked in the third direction Z, but a plurality of unit cells 1 are laid side by side in a layer, and the first surface (large surface) of the unit cell 1 is substantially parallel to the bottom plate 32.

The temperature adjusting structure 2 is disposed on one side of the battery body 11 where the battery post 12 is disposed, that is, the temperature adjusting structure 2 is disposed on one of the first surfaces of the battery body 11. Specifically be, be provided with temperature regulation structure 2 in the one side that is provided with battery utmost point post 12 of the monomer battery 1 that lies in the top, temperature regulation structure 2 can set up between two battery utmost point posts 12 to make temperature regulation structure 2 occupy the space of accommodation gap, and then improve battery device's space utilization, improve battery device's energy density. Of course, in the case where a plurality of single batteries 1 are laid side by side in a layer, the temperature adjustment structure 2 may be provided on the side of the battery body 11 of each single battery 1 where the battery post 12 is provided, specifically, the temperature adjustment structure 2 may be provided on the side of each battery body 11 close to the protective cover 31.

In other example embodiments, referring to fig. 3, the battery post 12 may be disposed toward the bottom plate 32, i.e., the battery post 12 is located on a side of the battery body 11 near the bottom plate 32. In this case, a certain receiving gap is formed between the lowermost battery cell 1 and the bottom plate 32 of the battery box 3, which receiving gap serves to receive the battery post 12, but the remaining part of the receiving gap is not occupied.

The temperature adjustment structure 2 is disposed on the side of the battery body 11 where the battery post 12 is disposed, that is, the temperature adjustment structure 2 is disposed on one of the first surfaces of the battery body 11. Specifically, be provided with temperature regulation structure 2 in the one side that is provided with battery utmost point post 12 of being located the single cell 1 of below, temperature regulation structure 2 can set up between two battery utmost point posts 12 to make temperature regulation structure 2 occupy accommodation gap's space, and then improve battery device's space utilization, improve battery device's energy density. Of course, in the case where a plurality of unit batteries 1 are laid side by side as a layer, the temperature adjustment structure 2 may be provided on the side of the battery body 11 of each unit battery 1 where the battery post 12 is provided, specifically, the temperature adjustment structure 2 may be provided on the side of each battery body 11 close to the bottom plate 32.

As shown in fig. 3, a distance H1 between a surface of the temperature adjustment structure 2 facing away from the battery body 11 and the battery body 11 is greater than a distance H2 between a surface of the battery post 12 facing away from the battery body 11 and the battery body 11, that is, the temperature adjustment structure 2 protrudes from the battery post 12.

When the temperature adjusting structure 2 is located between the battery body 11 and the protective cover 31, one surface of the temperature adjusting structure 2 close to the protective cover 31 can be attached to the protective cover 31, so that the temperature adjusting structure 2 can limit the single battery 1, and the short circuit caused by the contact of the battery post 12 and the protective cover 31 when vibration is generated in the use process is avoided.

When temperature regulation structure 2 was located between battery body 11 and the bottom plate 32, the one side that temperature regulation structure 2 was close to bottom plate 32 can laminate with bottom plate 32 for temperature regulation structure 2 can play the supporting role to battery cell 1, can avoid producing when vibrating in the use battery utmost point post 12 and visor 31 contact and produce the short circuit moreover. Moreover, after the battery device is installed on an electric device (for example, an electric vehicle), even when the bottom plate 32 of the battery device is hit by particles such as stones and solid garbage brought up by wheels during the operation of the electric vehicle, the hitting force is not transmitted to the single battery 1, or the hitting force transmitted to the single battery 1 is very small, so that the single battery 1 is prevented from being damaged.

The temperature adjusting structure 2 can be a heat-insulating layer, and the heat-insulating layer can be made of heat-insulating cotton, heat-insulating foam boards and the like. Temperature regulation structure 2 also can be temperature regulation board, is provided with the pipeline of intercommunication in the temperature regulation board, can circulate liquid in the pipeline, and the higher liquid of circulation temperature can reach and carry out the effect of heating to battery cell 1, and the lower liquid of circulation temperature can reach and carry out refrigerated effect to battery cell 1. The temperature adjusting structure 2 can also be a heating plate, a heating wire can be arranged in the heating plate, the heating plate can achieve the effect of heating the single battery 1, the temperature has important influence on the single battery 1, and the performance of the single battery 1 is reduced due to the excessively low temperature, so that the single battery cannot work normally; therefore, in northern cold climates, the need to heat the cell 1 is beneficial to the start-up and performance of the cell 1. Of course, the temperature adjustment structure 2 may also be other temperature adjustment devices, which are not described herein.

In the case where the temperature adjustment structure 2 is an insulating layer and a heating plate, a gap is provided between the temperature adjustment structure 2 and the battery post 12. That is, a gap is provided between the insulating layer and the heating plate and the battery post 12. Because, battery device is in the use, and battery utmost point post 12 generates heat the most, and the intensification is the fastest, if contact heat preservation and hot plate and battery utmost point post 12 for the heat that battery utmost point post 12 produced can't in time spill, leads to the monomer battery 1 to heat up too fast easily, thereby causes the incident.

Further, referring to fig. 2, 3 and 4, the battery device may further include a reinforcing structure 4, and the reinforcing structure 4 may be disposed between the single battery 1 and the bottom plate 32, specifically, when the battery post 12 is disposed toward the bottom plate 32, that is, the battery post 12 is located on one side of the battery body 11 close to the bottom plate 32, the reinforcing structure 4 is disposed between the two battery posts 12. The reinforcing structure 4 may comprise at least two reinforcing beams 41 or at least one reinforcing plate 42. Note that the length of the reinforcing beam 41 is the same as the length of the reinforcing plate 42, and the width of the reinforcing beam 41 is smaller than the width of the reinforcing plate 42, so that two reinforcing beams 41 can be provided, and the two reinforcing beams 41 can be provided correspondingly to the two battery posts 12. In addition, because the temperature adjusting structure 2 is further arranged between the two battery poles 12, the temperature adjusting structure 2 can be arranged between the two reinforcing beams 41, and if the gap between the reinforcing beam 41 and the battery pole 12 is wide, the temperature adjusting structure 2 can be arranged between the reinforcing beam 41 and the battery pole 12, so that three temperature adjusting structures 2 can be arranged, and the reinforcing structure 4 and the temperature adjusting structure 2 are alternately arranged.

Moreover, the three temperature adjustment structures 2 may be of different types, for example, the temperature adjustment structure 2 near the battery post 12 may be a temperature adjustment plate, so as to satisfy the timely adjustment of the temperature of the battery post 12; and the temperature adjusting structure 2 far away from the battery post 12 can be a heat insulating layer or a heating plate to satisfy the heat insulating effect on the battery body 11.

It should be noted that, when the reinforcing structure 4 is not provided, if a plurality of temperature adjustment structures 2 are provided, the plurality of temperature adjustment structures 2 may be provided in different types to meet different requirements of different portions of the single battery 1 on temperature.

In the case where one reinforcing plate 42 is provided, the temperature adjustment structure 2 may be provided between the reinforcing plate 42 and the battery post 12, that is, two temperature adjustment structures 2 may be provided, so that the reinforcing structure 4 and the temperature adjustment structure 2 are alternately provided.

Moreover, the distance between the surface of the reinforcing structure 4 facing away from the battery body 11 and the battery body 11 is greater than the distance between the surface of the battery post 12 facing away from the battery body 11 and the battery body 11, that is, the reinforcing structure 4 protrudes out of the battery post 12, so that the reinforcing structure 4 can support the battery body 11, and a sufficient space is left for the battery post 12. The distance between one surface of the reinforcing structure 4, which is far away from the battery body 11, and the battery body 11 is greater than or equal to the distance between one surface of the temperature adjusting structure 2, which is far away from the battery body 11, and the battery body 11; so that the reinforcing structure 4 can support the battery body 11 and minimize the pressure of the single battery 1 on the temperature adjusting structure 2.

When the battery post 12 is disposed toward the protective cover 31, that is, the battery post 12 is located on the side of the battery body 11 close to the protective cover 31, the battery post 12 does not interfere with the reinforcing structure 4, so the reinforcing structure 4 can be disposed as required without considering the position of the battery post 12.

The reinforcing structure 4 has a first end and a second end opposite to each other, and the first end can be connected to the frame beam 36, and specifically, the first end can be connected to the frame beam 36 by screws, welding or riveting. The second end may be connected to the cross member 34, and in particular, the second end may be connected to the cross member 34 by means of screws, welding or riveting. Can support battery cell 1 through additional strengthening 4, avoid battery cell 1 and bottom plate 32 direct contact, provide accommodation gap for battery post 12 of battery cell 1, can strengthen battery device's intensity moreover. Moreover, after the battery device is installed on an electric device (for example, an electric vehicle), even when the bottom plate 32 of the battery device is hit by objects such as stones and solid particles brought up by wheels during the operation of the electric vehicle, the hitting force is not transmitted to the single battery 1, or the hitting force transmitted to the single battery 1 is small, so that the single battery 1 is prevented from being damaged.

Further, referring to fig. 3, the battery device may further include a limiting structure 5, and the limiting structure 5 may be disposed between the single battery 1 and the protective cover 31, specifically, when the battery post 12 is disposed toward the protective cover 31, that is, the battery post 12 is located on a side of the battery body 11 close to the protective cover 31, the limiting structure 5 is disposed between the two battery posts 12. Moreover, the distance between the surface of the limiting structure 5 departing from the battery body 11 and the battery body 11 is greater than the distance between the surface of the battery post 12 departing from the battery body 11 and the battery body 11, i.e., the limiting structure 5 protrudes from the battery post 12, so that the limiting structure 5 can play a limiting role, and the battery post 12 is prevented from contacting the protective cover 31. The distance between one surface of the limiting structure 5, which is far away from the battery body 11, and the battery body 11 is greater than or equal to the distance between one surface of the temperature adjusting structure 2, which is far away from the battery body 11, and the battery body 11; so that the limiting structure 5 can play a limiting role.

The stop structure 5 may comprise at least two stop beams 51 or at least one stop plate 52. It should be noted that the length of the limiting beam 51 is the same as the length of the limiting plate 52, but the width of the limiting beam 51 is smaller than the width of the limiting plate 52, so two limiting beams 51 may be provided, and the two limiting beams 51 are correspondingly provided close to the two battery poles 12. In addition, because still be provided with temperature regulation structure 2 between two battery utmost point posts 12, can set up temperature regulation structure 2 between two spacing roof beams 51, if when the clearance between spacing roof beam 51 and battery utmost point post 12 is broad, can also set up temperature regulation structure 2 between spacing roof beam 51 and battery utmost point post 12, just so can be provided with three temperature regulation structure 2, make limit structure 5 and temperature regulation structure 2 set up in turn moreover.

It should be noted that, when the limiting structure 5 is not provided, the plurality of temperature adjustment structures 2 may be provided in different types as long as the plurality of temperature adjustment structures 2 are provided, so as to meet different requirements of different portions of the single battery 1 on temperature.

In the case where one limiting plate 52 is provided, the temperature adjustment structure 2 may be provided between the limiting plate 52 and the battery post 12, that is, two temperature adjustment structures 2 are provided, so that the limiting structures 5 and the temperature adjustment structures 2 are alternately provided.

When the battery post 12 is disposed toward the bottom plate 32, that is, the battery post 12 is disposed on one side of the battery body 11 close to the bottom plate 32, the battery post 12 does not interfere with the limiting structure 5, so the limiting structure 5 can be disposed as required without considering the position of the battery post 12.

The limiting structure 5 has a third end and a fourth end which are oppositely arranged, the third end can be connected with the frame beam 36, and specifically, the third end and the frame beam 36 can be connected through screws, welding or riveting. The fourth end may be connected to the cross member 34, and in particular, may be connected to the cross member 34 by screws, welding or riveting. The limiting structure 5 can limit the single battery 1, and short circuit caused by contact between the battery post 12 and the protective cover 31 when vibration is generated in the use process is avoided.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A battery device, comprising:

2. The battery device according to claim 1, wherein the battery posts are disposed in two and on the same side of the battery body, and the temperature adjustment structure is disposed between the two battery posts.

3. The battery device according to claim 1, wherein a distance between a surface of the temperature adjustment structure facing away from the battery body and the battery body is greater than a distance between a surface of the battery post facing away from the battery body and the battery body.

4. The battery device according to claim 1, further comprising:

a battery box, the battery box comprising: the protective cover and the bottom plate are oppositely arranged, and a side plate is connected between the protective cover and the bottom plate;

the battery cell sets up to at least two, at least two the battery cell stacks gradually along the third direction in the battery box, the third direction is followed the bottom plate points to the direction of visor.

5. The battery device according to claim 4, wherein a groove is formed in a surface of the battery body facing away from the battery post, two adjacent single batteries are a first single battery and a second single battery, and the battery post of the second single battery is located in the groove of the first single battery.

6. The battery device according to claim 5, wherein the temperature regulation structure is located on a side of the battery body closest to the protective cover, the side being close to the protective cover, or the temperature regulation structure is located on a side of the battery body closest to the base plate, the side being close to the base plate.

7. The battery device according to claim 1, wherein the temperature regulation structure is provided in plurality, and a plurality of the temperature regulation structures are different in type.

8. The battery device according to claim 4, further comprising:

and the reinforcing structure is arranged between the single batteries and the bottom plate and fixedly connected with the battery box.

9. The battery device according to claim 8, wherein the battery posts are located on one side of the battery body close to the bottom plate, the reinforcing structure is disposed between the two battery posts, a distance between one side of the reinforcing structure facing away from the battery body and the battery body is greater than a distance between the other side of the reinforcing structure facing away from the battery body and the battery body.

10. The battery device according to claim 8, wherein the reinforcing structure comprises at least two reinforcing beams, and the temperature regulating structure is disposed between the two reinforcing beams or the reinforcing beams and the temperature regulating structure are alternately disposed.

11. The battery device according to claim 4, further comprising:

and the limiting structure is arranged between the single batteries and the protective cover and fixedly connected with the battery box.

12. The battery device according to claim 11, wherein the battery posts are located on one side of the battery body close to the protective cover, the limiting structure is disposed between the two battery posts, a distance between one surface of the limiting structure departing from the battery body and the battery body is greater than a distance between the other surface of the limiting structure departing from the battery body and the battery body.

13. The battery device of claim 11, wherein the limiting structure comprises at least two limiting beams, and the temperature regulating structure is disposed between the two limiting beams, or the limiting beams and the temperature regulating structure are alternately disposed.

14. The battery device according to claim 1, wherein the temperature adjusting structure is an insulating layer and/or a temperature adjusting plate and/or a heating plate.

15. The battery device of claim 14, wherein a gap is provided between the insulating layer and the heating plate and the battery post.