CN219717083U - Bottom guard board, battery box body, battery and electricity utilization device - Google Patents

Abstract

The utility model relates to the technical field of batteries, and provides a bottom guard plate, a battery box body, a battery and an electric device, wherein the bottom guard plate is used for being installed at the bottom of a box body bottom plate and comprises the following components: a first shielding plate extending in a first direction; the second protection plate is arranged below the first protection plate and extends along the first direction, a plurality of buffer grooves are formed in the second protection plate at intervals along the second direction, a cavity is defined between the first protection plate and the buffer grooves, and at least one end of the cavity along the first direction is provided with an opening; the at least one sealing plate is arranged at least one end of the second protection plate along the first direction and is blocked at the opening; wherein the second direction and the first direction are located on the same plane and intersect. By the technical scheme, the sealing performance of the cavity of the bottom guard plate can be improved, and the service life and the use reliability of the bottom guard plate can be improved.

Description

Bottom guard board, battery box body, battery and electricity utilization device

Technical Field

The utility model relates to the technical field of battery manufacturing, in particular to a bottom guard plate, a battery box body, a battery and an electric device.

Background

This section provides merely background information related to the present disclosure and is not necessarily prior art.

At present, a bottom guard plate is usually arranged at the bottom of a box bottom plate of a battery box body so as to play a role in safety protection.

In the related art, the bottom guard plate is fixedly connected with the box bottom plate section bar mainly through bolts, the bottom guard plate is generally provided with an upper layer structure and a lower layer structure, a cavity is formed between the two layers of structures, when the bottom guard plate is fixed on the box bottom plate, the waterproof and dustproof effects cannot be achieved, sealing and blocking can be achieved by additionally adding sealing foam and the like, and the sealing effect is poor and the cost is high.

Disclosure of Invention

The utility model aims to provide a bottom guard plate, a battery box body, a battery and an electric device, which are used for improving the tightness of the bottom guard plate. The aim is achieved by the following technical scheme:

in a first aspect, the present utility model provides a bottom guard for mounting to a bottom of a bottom panel of a tank, the bottom guard comprising: a first shielding plate extending in a first direction; the second protection plate is arranged below the first protection plate, extends along the first direction and is provided with a plurality of buffer grooves at intervals along the second direction, a cavity is defined between the first protection plate and the buffer grooves, and at least one end of the cavity along the first direction is provided with an opening; at least one shrouding is located at least one the shrouding the second guard plate is along at least one end of first direction, and shutoff in the opening.

According to the bottom guard plate provided by the utility model, the cavity defined between the buffer grooves on the first guard plate and the second guard plate plays a role in buffering stress and is used for playing a role in buffering when the bottom guard plate is subjected to external force, so that the reliability of the bottom guard plate on the bottom plate of the box body can be improved. Through set up the shrouding at the cavity has open-ended at least one end, utilize the opening of shrouding shutoff cavity to improve the leakproofness of cavity, with the effect that makes end backplate have dustproof and waterproof, and then help improving end backplate's life, and help improving end backplate's reliability of use.

In addition, the bottom guard plate provided by the utility model can also have the following additional technical characteristics:

in some embodiments of the present utility model, the sealing plate includes a connecting plate and a blocking plate vertically connected to the connecting plate, where the connecting plate is attached to and fixedly connected with the first protection plate, and the blocking plate blocks the opening.

After the connecting plate of the sealing plate is attached to the first protection plate, the sealing plate is fixedly connected with the first protection plate so as to realize sealing between the connecting plate and the first protection plate, and the sealing plate is abutted to the opening at the moment, so that sealing effect on the cavity can be realized, and the occurrence of the condition that external dust or water and the like enter the cavity is reduced.

In some embodiments of the utility model, the connection plate is bonded to the first shield plate; and/or the plugging plate is adhered to one end, provided with the opening, of the second protection plate along the first direction.

The connecting plate is adhered to the first protection plate through the adhesive without welding, so that the weight of the bottom protection plate is reduced, and the sealing reliability between the connecting plate and the first protection plate is further improved.

Similarly, the plugging plate is abutted to one end of the second protection plate, which is provided with the opening, and then is bonded with the second protection plate, so that the reliability of plugging the opening by the plugging plate is improved.

In some embodiments of the utility model, the connecting plate is provided with a first connecting hole, and the first protection plate is provided with a second connecting hole communicated with the first connecting hole;

the bottom guard plate further comprises a fixed connecting piece, and the fixed connecting piece penetrates through the first connecting hole and the second connecting hole to enable the connecting plate to be fixedly connected with the first guard plate.

Through set up first connecting hole on the connecting plate to correspond the second connecting hole that sets up and be linked together with first connecting hole on first guard plate, then pass first connecting hole and second connecting hole in proper order with fixed connection spare, alright with connecting plate and first guard plate fixed connection, not only improved the reliability that connecting plate and first guard plate are connected, simultaneously, owing to can inject the accommodation space that is used for holding the tip of fixed connection portion between shutoff board and the connecting plate, still can improve the condition of easy scratch that the tip of fixed connection spare leaks outward and leads to, and improve the condition that leads to the outer hourglass end position of fixed connection spare to produce the height to be uneven when adopting a plurality of fixed connection spare fixed connection.

In some embodiments of the utility model, the cavity is provided with openings at both ends along the first direction; the number of the sealing plates is two, and the two sealing plates are respectively arranged at the two ends of the cavity along the first direction.

The two sealing plates are used for respectively plugging the two ends of the cavity along the first direction and respectively plugging the openings formed at the two ends of the cavity so as to seal the two ends of the cavity, thereby further improving the tightness of the cavity.

In some embodiments of the utility model, the second guard plate comprises a plurality of sub-plates, and ends of the plurality of sub-plates are bonded together.

That is, the second protection plate is composed of a plurality of sub-plates, the end parts of the sub-plates are mutually overlapped, the installation and the maintenance are convenient, and the integral strength of the second protection plate is improved.

In some embodiments of the present utility model, a side of the second protection plate facing the first protection plate is provided with a plurality of ribs, and the plurality of ribs are spaced apart along the second direction and extend along the first direction.

The second guard plate utilizes a plurality of protruding muscle and first guard plate looks butt to can realize the transmission of power between second guard plate and first guard plate, and then help improving the bulk strength of backplate at the bottom.

In some embodiments of the present utility model, both ends of the second protection plate along the second direction are provided with step surfaces, and the step surfaces are attached to the first protection plate and are fixedly connected with the first protection plate through a fixed connection piece.

Through all setting up the step face at the both ends of second guard plate along the second direction, the step face is through laminating mutually the back with first guard plate, reuse fixed connection spare and first guard plate fixed connection, not only be convenient for connect, and still can hold fixed connection spare's tip to improve the tip hourglass of fixed connection spare and lead to the condition of easy scratch.

In a second aspect, the present utility model provides a battery case comprising: a bottom plate of the box body; and the bottom guard plate according to any one of the first aspect, wherein the bottom guard plate is fixedly connected to the bottom of the bottom plate of the box body through a fixed connecting piece.

The battery case provided in the second embodiment of the present utility model includes the bottom guard plate according to any one of the first embodiment, and therefore has the technical effects of any one of the above embodiments, which are not described herein.

In a third aspect, the present utility model provides a battery comprising a battery case according to the second aspect, wherein the battery case accommodates one or more battery cells.

The battery provided in the third aspect of the present utility model includes the battery case described in the second aspect, and therefore has the technical effects of any of the above embodiments, and will not be described in detail herein.

In a fourth aspect, the present utility model provides an electrical device comprising a battery according to an embodiment of the third aspect for powering the electrical device.

The power consumption device according to the fourth aspect of the present utility model, including the battery according to the third aspect of the present utility model, has the technical effects of any of the foregoing embodiments, and will not be described in detail herein.

In some embodiments of the utility model, the power device is a vehicle and the first direction is a direction of travel of the vehicle.

That is, the battery box and the bottom guard plate on the battery box are integrally arranged along the running direction of the vehicle, so that the battery with larger capacity can be assembled conveniently by utilizing the length direction of the vehicle, and the box bottom plate of the battery can be protected to a greater extent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the utility model. Also, like reference numerals are used to designate like parts throughout the figures. In the drawings:

FIG. 1 is a schematic diagram of an assembled structure of a bottom plate and a bottom guard plate of a case according to some embodiments of the present utility model;

FIG. 2 is a schematic diagram illustrating an assembly structure of a bottom plate of a case body at another view angle of a bottom guard plate according to some embodiments of the present utility model;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 in the direction A-A;

FIG. 4 is an enlarged schematic view of the portion C in FIG. 3;

FIG. 5 is a schematic cross-sectional view of the structure of FIG. 2 in the direction B-B;

fig. 6 is an enlarged schematic view of the portion D in fig. 5.

The reference numerals are as follows:

100. a bottom guard board; 200. a bottom plate of the box body;

10. a first protection plate; 20. a second protection plate; 30. a sealing plate; 40. fixing the connecting piece; 50. a cavity; 60. a transition connecting plate;

21. a sub-board; 31. a connecting plate; 32. a plugging plate;

211. convex ribs; 212. a faying surface; 213. a step surface;

the x-axis direction of the coordinate system in fig. 1 and 2 is the first direction, and the y-axis direction is the second direction.

Detailed Description

Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model; the terms "comprising" and "having" and any variations thereof in the description of the utility model and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present utility model, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present utility model, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present utility model, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present utility model, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present utility model.

In the description of the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

Currently, the application of power batteries is more widespread from the development of market situation. The power battery is not only applied to energy storage power supply systems such as hydraulic power, firepower, wind power and solar power stations, but also widely applied to electric vehicles such as electric bicycles, electric motorcycles, electric automobiles and the like, and various fields such as aerospace and the like. With the continuous expansion of the application field of the power battery, the market demand of the power battery is also continuously expanding.

The battery has the battery box, can set up the backplate at the bottom of the box bottom plate of battery box generally to play safety protection effect.

In the related art, the bottom guard plate is fixedly connected with the box bottom plate section bar mainly through bolts, the bottom guard plate is generally provided with an upper layer structure and a lower layer structure, a cavity is formed between the two layers of structures, when the bottom guard plate is fixed on the box bottom plate, the waterproof and dustproof effects cannot be achieved, sealing and blocking can be achieved by additionally adding sealing foam and the like, and the sealing effect is poor and the cost is high.

In order to solve the problems of poor sealing effect and high cost caused by the fact that a bottom guard plate adopts a foam and other sealed cavities, the utility model designs the bottom guard plate which comprises a first guard plate and a second guard plate which extend along a first direction, wherein the second guard plate is positioned below the first guard plate, a cavity is defined between the second guard plate and the first guard plate, at least one end of the cavity along the first direction is provided with an opening, a sealing plate is arranged at the opening, and the sealing plate is blocked in the opening and is fixedly connected with the first guard plate. Utilize the shrouding shutoff in the opening part of cavity, play the effect of sealed cavity to make end backplate have dustproof waterproof's effect, and can improve to have the problem that sealed effect is poor or seal failure when adopting sealed modes such as bubble cotton, help improving end backplate's life simultaneously.

The bottom guard plate 100 disclosed in the embodiment of the utility model can be mounted not only on a battery box of a battery for an electric automobile, but also on a battery of electric equipment such as an electric motorcycle, an electric bicycle, an electric aircraft and the like.

Referring to fig. 1 to 6, fig. 1 is a schematic view illustrating an assembly structure of a bottom plate and a bottom guard plate according to some embodiments of the present utility model; FIG. 2 is a schematic diagram illustrating an assembly structure of a bottom plate of a case body at another view angle of a bottom guard plate according to some embodiments of the present utility model; FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 in the direction A-A; FIG. 4 is an enlarged schematic view of the portion C in FIG. 3; FIG. 5 is a schematic cross-sectional view of the structure of FIG. 2 in the direction B-B; fig. 6 is an enlarged schematic view of the portion D in fig. 5. The first aspect of the present utility model provides a bottom guard plate 100 for being mounted on the bottom of a bottom plate 200 of a case, the bottom guard plate 100 comprising: a first shielding plate 10 extending in a first direction; the second protection plate 20 is arranged below the first protection plate 10 and extends along the first direction, a plurality of buffer grooves are formed in the second protection plate 20 at intervals along the second direction, a cavity 50 is defined between the first protection plate 10 and the buffer grooves, and at least one end of the cavity 50 along the first direction is provided with an opening; at least one sealing plate 30, wherein the at least one sealing plate 30 is arranged at least one end of the second protection plate 20 along the first direction and is blocked in the opening; wherein the second direction and the first direction are located on the same plane and intersect.

In the present embodiment, the first bottom guard plate 100 is illustratively an aluminum plate extending in a horizontal direction, and the second guard plate 20 is a pultruded bottom plate formed by a pultrusion method.

Illustratively, the relief groove is formed by recessing a portion of the second bottom shield 100 away from the first bottom shield 100.

Illustratively, the second direction is perpendicular to the first direction. Alternatively, the included angle between the second direction and the first direction is any angle of 60 degrees or 45 degrees.

The number of the cavities 50 is plural, and the plurality of cavities 50 are arranged at intervals along the second direction, so that the bottom guard plate 100 can play a role in buffering when being subjected to external force, thereby helping to improve the reliability of protecting the bottom guard plate 100 from the bottom plate 200 of the box body.

The cavity 50 formed between the first bottom guard plate 100 and the buffer slot defined by the second bottom guard plate 100 serves to buffer the second bottom guard plate 100 when an external force is applied thereto, thereby protecting the case bottom plate 200. At least one end of the cavity 50 in the first direction has an opening, i.e., one end of the cavity 50 in the first direction has an opening, or both ends of the cavity 50 in the first direction have an opening.

By arranging the sealing plate 30 at least one end of the cavity 50 with an opening, the opening of the cavity 50 is sealed by the sealing plate 30, so that dust, water and other impurities are reduced to enter the buffer space, the tightness of the cavity 50 is improved, the bottom guard plate 100 has a dustproof and waterproof effect, the service life of the bottom guard plate 100 is prolonged, and the use reliability of the bottom guard plate 100 is improved.

Referring to fig. 6, according to some embodiments of the present utility model, the sealing plate 30 includes a connecting plate 31 and a blocking plate 32 vertically connected to the connecting plate 31, wherein the connecting plate 31 is attached to and fixedly connected with the first protection plate 10, and the blocking plate 32 is blocked in the opening.

In this embodiment, the sealing plate 30 is L-shaped and extends in the second direction. Wherein the blocking plate 32 is integrally formed with the connecting plate 31 or is connected by welding.

Illustratively, the height of the plugging plate 32 may be consistent with the height of the second floor as the case may be.

After the connecting plate 31 of the sealing plate 30 is attached to the first protection plate 10, the sealing plate 31 is fixedly connected with the first protection plate 10 to realize sealing between the connecting plate 31 and the first protection plate 10, and the sealing plate 32 is abutted to the opening at the moment, so that sealing effect on the cavity 50 can be realized, and the occurrence of the condition that external dust or water and the like enter the cavity 50 is reduced.

According to some embodiments of the utility model, the connection plate 31 is glued to the first protection plate 10.

According to some embodiments of the present utility model, the blocking plate 32 is bonded to the end of the second shielding plate 20 having the opening in the first direction.

The connection plate 31 is adhered to the first shielding plate 10 by an adhesive without welding, thereby contributing to weight reduction of the bottom shielding plate 100 and further contributing to improvement of reliability of sealing between the connection plate 31 and the first shielding plate 10.

Similarly, the plugging plate 32 is adhered to the second protection plate 20 after abutting against the end, with the opening, of the second protection plate 20, so that reliability of plugging the opening by the plugging plate 32 is improved.

It will be appreciated that the length of at least one end of the second shield plate 20 in the first direction is less than the first shield plate 10 for mounting the stationary seal plate 30.

Referring to fig. 6, according to some embodiments of the present utility model, the connection plate 31 is provided with a first connection hole, and the first shielding plate 10 is provided with a second connection hole communicating with the first connection hole; the bottom guard plate 100 further includes a fixing connection member 40, and the fixing connection member 40 passes through the first connection hole and the second connection hole to fixedly connect the connection plate 31 with the first guard plate 10.

In this embodiment, the number of the first and second connection holes may be one or more, and when the number of the first and second connection holes is plural, the plurality of first and second connection holes are each disposed at intervals along the second direction, and the fixing connection member 40 may be a stud or a rivet, or the like.

Through setting up first connecting hole on connecting plate 31 to set up the second connecting hole that is linked together with first connecting hole on first guard plate 10 corresponds, then pass first connecting hole and second connecting hole in proper order with fixed connection piece 40, alright with connecting plate 31 and first guard plate 10 fixed connection, not only improved the reliability that connecting plate 31 and first guard plate 10 are connected, simultaneously, because can inject the accommodation space that is used for holding the tip of fixed connection portion between shutoff plate 32 and the connecting plate 31, still can improve the condition of easy scratch that the tip of fixed connection piece 40 leaks outward and leads to, and improve the condition that leads to the outer hourglass end position of fixed connection piece 40 to produce the height uneven when adopting a plurality of fixed connection pieces 40 fixed connection.

According to some embodiments of the utility model, the cavity 50 is provided with openings at both ends in the first direction; the number of the sealing plates 30 is two, and the two sealing plates 30 are respectively arranged at two ends of the cavity 50 along the first direction.

In this embodiment, it can be understood that the length of the second protection plate 20 along the first direction is smaller than that of the first protection plate 10, and the two ends of the second buffer plate along the first direction are reserved with a space for installing the sealing plate 30.

The two sealing plates 30 are respectively plugged at two ends of the cavity 50 along the first direction and are respectively plugged at openings formed at two ends of the cavity 50 so as to seal the two ends of the cavity 50, thereby further improving the sealing performance of the cavity 50.

Referring to fig. 4, according to some embodiments of the present utility model, the second shielding plate 20 includes a plurality of sub-plates, and ends of the plurality of sub-plates are bonded to each other.

In this embodiment, an end portion of one of the two adjacent sub-boards is partially folded upward and extends in a horizontal direction, so as to form a joint surface 212, the joint surface 212 is disposed downward, and the other sub-board is provided with an end plate that is in joint with the joint surface 212, so that the other sub-board is in joint under the joint surface 212.

The end portions of the plurality of sub-boards are overlapped with each other and then adhered to facilitate installation and maintenance, and contribute to an improvement in the overall strength of the second shielding plate 20.

Referring to fig. 4, according to some embodiments of the present utility model, a side of the second shielding plate 20 facing the first shielding plate 10 is provided with a plurality of ribs 211, and the plurality of ribs 211 are spaced apart along the second direction and extend along the first direction.

In the present embodiment, an end of the rib 211 remote from the second shielding plate 20 is illustratively bonded to the first shielding plate 10.

The second protection plate 20 is abutted against the first protection plate 10 by using a plurality of ribs 211, so that the transmission of force between the second protection plate 20 and the first protection plate 10 can be realized, and the overall strength of the bottom protection plate 100 can be improved.

Referring to fig. 4, according to some embodiments of the present utility model, both ends of the second protection plate 20 along the second direction are provided with step surfaces 213, and the step surfaces 213 are attached to the first protection plate 10 and fixedly connected to the first protection plate 10 through the fixing connection members 40.

In this embodiment, the step surface 213 is formed by partially folding two ends of the second protection plate 20 along the second direction toward the direction approaching the first protection plate 10 and extending along the horizontal direction.

Through all setting up step face 213 at the both ends of second guard plate 20 along the second direction, step face 213 is through laminating mutually the back with first guard plate 10, reuse fixed connection spare 40 and first guard plate 10 fixed connection, not only be convenient for connect, and still can hold fixed connection spare 40's tip to improve fixed connection spare 40's tip leak and lead to the condition of easy scratch outward.

Referring to fig. 1 to 6, according to some embodiments of the present utility model, there is provided a bottom shielding plate 100 for being mounted at the bottom of a bottom plate 200 of a case, the bottom shielding plate 100 including a first shielding plate 10, a second shielding plate 20, and two sealing plates 30. The first protection plate 10 and the second protection plate 20 extend along the first direction, a cavity 50 is defined between the second bottom protection plate 100 and the first protection plate 10, openings are formed at two ends of the cavity 50, two sealing plates 30 are arranged at two ends of the second protection plate 20 along the first direction and fixedly connected with the first protection plate 10, and the two sealing plates 30 are blocked at the two openings. The sealing plate 30 comprises a connecting plate 31 and a sealing plate 32 vertically connected with the connecting plate 31, the connecting plate 31 is adhered to the first protection plate 10, a first connecting hole for the fixed connecting piece 40 to pass through is formed in the connecting plate 31, a second connecting hole corresponding to the first connecting hole is formed in the first protection plate 10, and the fixed connecting piece 40 passes through the first connecting hole and the second connecting hole and then is fixedly connected with the bottom plate 200 of the box body. The blocking plate 32 is adhered to the second protection plate 20 after being abutted against both ends in the first direction to seal the cavity 50.

According to some embodiments of the present utility model, a second aspect of the present utility model provides a battery case including a case bottom plate 200 and a bottom cover 100 according to any one of the first aspect of the embodiments, the bottom cover 100 being fixedly coupled to a bottom of the case bottom plate 200 by a fixing coupling member 40.

In this embodiment, the case bottom plate 200 has a rivet nut, and the fixing connector 40 is a stud, which is fixedly connected to the rivet nut.

In addition, referring to fig. 6, a transition connection plate 60 is further disposed between the bottom plate 200 of the box body and the first protection plate 10, two ends of the transition connection plate 60 along the second direction are partially turned upwards to form a flange, the transition connection plate 60 is adhered to the first protection plate 10, and the flange is lapped on the flange of the rivet nut.

The battery case provided in the second embodiment of the present utility model includes the bottom guard plate 100 according to any one of the first embodiment, so that the battery case has the technical effects of any one of the above embodiments, and will not be described herein.

According to some embodiments of the utility model, a third aspect of the utility model provides a battery comprising a battery housing according to the embodiments of the second aspect, the battery housing containing one or more battery cells.

The battery provided in the third embodiment of the present utility model, because of including the battery case in the second embodiment, has the technical effects of any of the foregoing embodiments, and will not be described herein.

According to some embodiments of the present utility model, a fourth aspect of the present utility model provides an electrical device comprising a battery according to the embodiments of the third aspect, the battery being for powering the electrical device.

The power utilization device according to the fourth aspect of the present utility model, including the battery according to the third aspect of the present utility model, therefore has the technical effects of any of the foregoing embodiments, and will not be described herein.

According to some embodiments of the utility model, the powered device is a vehicle and the first direction is a direction of travel of the vehicle.

That is, the battery box and the bottom guard plate on the battery box are integrally arranged along the running direction of the vehicle, so that the battery with larger capacity can be conveniently assembled along the length direction of the vehicle, and the box bottom plate of the battery can be conveniently protected to a larger extent.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (12)

1. A bottom guard plate for mounting to a bottom of a bottom plate of a tank, the bottom guard plate comprising:

a first shielding plate extending in a first direction;

the second protection plate is arranged below the first protection plate, extends along the first direction and is provided with a plurality of buffer grooves at intervals along the second direction, a cavity is defined between the first protection plate and the buffer grooves, and at least one end of the cavity along the first direction is provided with an opening;

at least one sealing plate is arranged at least one end of the second protection plate along the first direction and is blocked in the opening;

wherein the second direction is in the same plane as the first direction and intersects.

2. The bottom shield of claim 1 wherein the closure plate comprises a connection plate and a blocking plate vertically connected to the connection plate, the connection plate being in engagement with and fixedly connected to the first shield, the blocking plate blocking the opening.

3. The bottom shield of claim 2 wherein the web is bonded to the first shield;

and/or the plugging plate is adhered to one end, provided with the opening, of the second protection plate along the first direction.

4. The bottom guard plate of claim 2, wherein the connecting plate is provided with a first connecting hole, and the first guard plate is provided with a second connecting hole in communication with the first connecting hole;

the bottom guard plate further comprises a fixed connecting piece, and the fixed connecting piece penetrates through the first connecting hole and the second connecting hole to enable the connecting plate to be fixedly connected with the first guard plate.

5. The bottom fender of any one of claims 1 to 4, wherein both ends of the cavity in the first direction are provided with openings;

the quantity of shrouding is two, two the shrouding set up respectively in the cavity is followed the both ends of first direction.

6. The bottom shield of any one of claims 1-4 wherein the second shield includes a plurality of sub-plates bonded between ends of the plurality of sub-plates.

7. The bottom fender of any one of claims 1-4, wherein a side of the second fender facing the first fender is provided with a plurality of ribs, the plurality of ribs being spaced apart along the second direction and extending along the first direction.

8. The bottom guard plate of any one of claims 1 to 4, wherein both ends of the second guard plate along the second direction are provided with step surfaces, and the step surfaces are attached to the first guard plate and fixedly connected to the first guard plate through a fixed connection member.

9. A battery box, comprising:

a bottom plate of the box body; and

the bottom shield of any of claims 1-8 fixedly attached to the bottom of the tank floor by a fixed attachment.

10. A battery comprising a battery housing according to claim 9, wherein the battery housing houses one or more battery cells.

11. An electrical device comprising a battery as claimed in claim 10, the battery being arranged to power the electrical device.

12. The electrical device of claim 11, wherein the electrical device is a vehicle and the first direction is a direction of travel of the vehicle.