CN220710523U - Guard plate structure, battery box, battery and power consumption device - Google Patents

Abstract

The utility model is applicable to the battery technology field, a backplate structure is provided, the battery box, battery and power consumption device, backplate structure includes the backplate body, first turn-ups and second turn-ups, first turn-ups sets up in the backplate body at one side edge of first direction, first turned-ups's both ends are connected with the second turn-ups respectively, two second turn-ups set up the both sides relative in the backplate body at the interval in the second direction, first direction is located the coplanar with the second direction and intersects, the backplate body is provided with the through-hole, the through-hole runs through the backplate body, first turn-ups and second turn-ups enclose and establish and form drainage space, the through-hole communicates with drainage space, drainage space is kept away from one side of first turn-ups and is formed drainage opening. The backplate structure that this application provided prevents partial liquid inflow backplate structure through first turn-ups and second turn-ups, improves the water-proof effects to liquid in with backplate structure discharges through-hole and drainage opening, thereby has solved the problem of ponding in the backplate body.

Description

Guard plate structure, battery box, battery and power consumption device

Technical Field

The application relates to the technical field of batteries, in particular to a guard plate structure, a battery box body, a battery and an electric device.

Background

In the current common batteries on the market, a bottom guard plate is usually arranged at the bottom of a battery box so as to improve the safety performance of the battery. However, a cavity is usually formed between the bottom guard plate and the bottom plate of the battery box, and water is easily accumulated in the cavity between the bottom guard plate and the bottom plate of the battery box during running of the vehicle, so that the corrosion and ageing speeds of the bottom guard plate are increased.

Disclosure of Invention

An aim of the embodiment of the application is to provide a backplate structure, battery box, battery and power consumption device, aim at solving the technical problem that the cavity between backplate and the bottom plate of battery box is ponding easily among the prior art.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows:

in a first aspect, a guard plate structure is provided for mounting in a bottom of a bottom plate of a case, the guard plate structure including: backplate body, first turn-ups and second turn-ups, first turn-ups set up in backplate body at one side edge of first direction, and first turn-ups's both ends are connected with the second turn-ups respectively, and two second turn-ups set up in backplate body relative both sides at the interval in the second direction, and first direction and second direction are located the coplanar and intersect, and backplate body is provided with the through-hole, and the through-hole runs through backplate body. The backplate body, first turn-ups and second turn-ups enclose to establish and form drainage space, and through-hole and drainage space intercommunication, one side that drainage space kept away from first turn-ups forms drainage opening.

In this kind of setting scheme, this application is owing to set up first turn-ups at the edge of one side of backplate body along the first direction to set up the second turn-ups respectively in backplate body's relative both sides, so, accessible first turn-ups and second turn-ups prevent that at least part liquid from flowing to backplate body on, also, accessible first turn-ups and second turn-ups prevent in at least part liquid flows in backplate structure, improved backplate structure's water-proof effects. Meanwhile, the through holes are formed in the guard plate body, and because the through holes penetrate through the guard plate body, even if a small part of liquid flows into the guard plate structure, the liquid in the guard plate structure can be timely discharged through the through holes, so that the problem of accumulated water in the guard plate body is solved. The backplate body, first turn-ups and second turn-ups enclose to establish and form drainage space, and drainage space has drainage opening, and the setting of first turn-ups and second turn-ups plays certain wire effect for the liquid that gets into drainage space flows to drainage opening direction. The arrangement of the drain openings allows liquid entering the drain space to drain faster through the drain openings. And because the drainage space is enclosed by backplate body, first turn-ups and second turn-ups and establishes, consequently, after backplate body, first turn-ups and second turn-ups preparation are accomplished, can form drainage opening, reduced the open-ended technological process of drainage alone of seting up, be favorable to improving production efficiency to practice thrift manufacturing cost.

In one possible design, the guard body has a water guiding surface which is arranged obliquely downwards from the end close to the first flange to the end close to the drain opening.

In this kind of setting mode, through setting up the water guide surface downwards from the one end that is close to first turn-ups to the one end slope that is close to the drain opening, be favorable to the liquid on the backplate body to be discharged by the drain opening voluntarily under self gravity to improve the drainage effect of backplate structure.

In one possible embodiment, the length of the two second flanges in the first direction is the same as the length of the shield body.

In this kind of setting mode, because the length of second turn-ups is the same with the length of backplate body, can improve the relative area of contact between second turn-ups and the box bottom plate to improve the water-proof effects of backplate structure.

In one possible design, a plurality of case bottom plate fixing structures are respectively arranged on the first flange and the second flange at intervals.

In this kind of setting scheme, through set up a plurality of box bottom plate fixed knot constructs respectively on first turn-ups and second turn-ups to make first turn-ups and second turn-ups can be connected with the box bottom plate, and then reduce the clearance between first turn-ups and second turn-ups and the box bottom plate, in order to improve the waterproof effect of first turn-ups and second turn-ups.

In one possible design, the case bottom plate fixing structure includes a fitting hole and a fixing member, the fitting hole is disposed on the corresponding first flange or second flange, and the fixing member is disposed through the fitting hole.

In this kind of setting scheme, through setting up pilot hole and mounting to first turn-ups and second turn-ups are connected with the box bottom plate.

In one possible design, the number of tank bottom plate fixing structures is multiple, the multiple tank bottom plate fixing structures are divided into a plurality of fixing assemblies, a group of fixing assemblies comprises at least two tank bottom plate fixing structures, and a distance between two adjacent tank bottom plate fixing structures in the same fixing assembly is smaller than a minimum distance between two adjacent groups of fixing assemblies.

In this kind of setting scheme, through setting up a plurality of box bottom plate fixed knot constructs group to every group includes two at least box bottom plate fixed knot constructs, so, sets up less box bottom plate fixed knot constructs relatively, alright make backplate structure and box bottom plate stable connection, and then improved the assembly efficiency between backplate structure and the box bottom plate.

In one possible design, the first flange and the second flange each have an adhesive surface.

In this kind of setting method, first turn-ups and second turn-ups accessible sticky mode are connected with the box bottom plate, can effectively reduce the clearance between first turn-ups and the second turn-ups two and the box for the waterproof effect of first turn-ups and second turn-ups is better.

In one possible design, the number of through holes is a plurality, and the plurality of through holes are distributed at intervals on the guard plate body.

In this kind of setting scheme, through set up a plurality of through-holes on the backplate body interval, be favorable to improving the drainage effect of backplate structure.

In one possible design, the shield body, the first flange and the second flange are of unitary construction.

In the arrangement mode, the first flanging and the second flanging are of an integrated structure, so that on one hand, the first flanging and the second flanging are beneficial to production and manufacture; on the other hand, no gap exists between the first flanging and the second flanging, so that the waterproof effect of the guard plate structure is further improved.

In a second aspect, a battery case is provided, including a case bottom plate and a guard plate structure according to any one of the above-mentioned technical solutions, where the guard plate structure is fixedly connected to the case bottom plate.

The battery box body comprises the guard plate structure, so that the battery box body at least comprises all beneficial effects of the guard plate structure, and the detailed description is omitted.

In a third aspect, a battery is provided, including a battery cell and a battery box according to the above technical solution, where one or more battery cells are accommodated in the battery box.

The battery comprises the battery box body, so that the battery box body at least comprises all beneficial effects of the battery box body, and the detailed description is omitted.

In a fourth aspect, an electrical device is provided, including a battery according to the above-mentioned aspect, where the battery is configured to supply power to the electrical device.

The power utilization device comprises the battery, so that the power utilization device has at least all the beneficial effects of the battery and is not repeated herein.

In one possible embodiment, the power utilization device is a vehicle, the first direction is parallel to the direction of travel of the vehicle, and the first flange is provided on the front side of the fender body in the direction of travel of the vehicle.

In this kind of setting mode, because first turn-ups set up in the front side of backplate body along the vehicle direction of travel, can effectively block the vehicle in the in-process liquid entering backplate structure that advances through first turn-ups, and then effectively improved backplate structure's water-proof effects.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a guard plate structure and a bottom plate of a case according to an embodiment of the present application;

FIG. 2 is an exploded view of a fender structure and a tank floor provided in accordance with one embodiment of the present application;

FIG. 3 is a schematic structural view of a guard plate structure according to one embodiment of the present application;

FIG. 4 is a schematic cross-sectional view of the fender structure and the tank floor in the direction D-D of FIG. 1;

FIG. 5 is a schematic cross-sectional view of a fender structure and a tank floor provided in accordance with another embodiment of the application;

FIG. 6 is a schematic structural view of a fender structure according to yet another embodiment of the application;

FIG. 7 is a schematic cross-sectional view of a fender structure and a tank floor provided in accordance with yet another embodiment of the application;

fig. 8 is a schematic structural view of a battery provided in one embodiment of the present application;

fig. 9 is a schematic structural diagram of an electric device according to an embodiment of the present application.

Reference numerals related to the above figures are as follows:

1. an electric device;

10. a battery; 20. a control mechanism; 30. a driving mechanism;

100. a battery case; 200. a battery cell;

110. a guard plate structure; 120. a bottom plate of the box body; 121. a support plate; 122. a frame; 1221. a connection hole; 123. an accommodating space;

111. A guard plate body; 1111. a through hole; 1112. a water guiding surface; 112. a first flanging; 113. a second flanging; 114. a bottom plate fixing structure of the box body; 1141. a fitting hole; 1142. a fixing member; 115. a viscose surface; 116. a drainage space; 1161. a drain opening; 1162. and (5) a notch.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clear, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

In the description of the embodiments of the present application, the term "plurality" refers to more than two (including two).

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to 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 application will be understood by those of ordinary skill in the art according to the specific circumstances.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the guard plate structures or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and therefore should not be construed as limiting the present application.

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

Finally, it is worth noting that in the drawings of the present application, the wires with solid arrows point to the structure itself, the wires with dotted arrows point to a region (e.g., cavity, hole or slot, etc.), and the wires with hollow arrows point to the structure surface.

Along with the serious environmental pollution, the environmental protection consciousness of people is gradually enhanced, and the new energy industry is rapidly raised at the moment, so that a wide space is provided for the application and development of batteries. In some batteries, the battery has a battery housing that houses one or more battery cells. The battery box comprises a box bottom plate, a top cover and side plates, wherein the box bottom plate, the top cover and the side plates enclose to form a containing space for containing the battery monomers. The bottom of box bottom plate is provided with the backplate structure generally to improve the barrier propterty of battery box. In the related art, the guard plate structure is a plate-shaped structure, and the guard plate structure is positioned at the bottom of the box bottom plate or at one side of the box bottom plate far away from the accommodating space, and the guard plate structure is connected with the box bottom plate through bolts which longitudinally penetrate through the guard plate structure and then are connected with the box.

However, a cavity is usually formed between the guard plate structure and the bottom plate of the case, and because there is a gap between the edge of the guard plate structure and the edge of the case in the longitudinal direction, on one hand, liquid and sediment easily enter the cavity between the bottom plate of the case and the guard plate structure through the gap, and on the other hand, abnormal sound can be generated when wind blows. In order to solve the problems, in part of the batteries, a foam pad layer is additionally arranged between a bottom plate of the box body and a guard plate structure for sealing. However, the arrangement mode of adding the foam cushion layer can increase the cost of the battery box body on one hand and the assembly flow on the other hand. In addition, the foam pad layer has failure, that is, after a certain period of use, the foam pad layer may have aging of its own material, so that the elastic performance is reduced, or the sealing performance is reduced under the impregnation of silt and liquid.

Based on the above considerations, in order to solve the sealing problem between the bottom plate of the case and the guard plate structure, the inventor has conducted intensive studies and devised a guard plate structure. The guard plate structure comprises a guard plate body and a flanging, the flanging is arranged on one side of the guard plate body in the first direction at least, two ends of the flanging extend a certain distance along the edge of the guard plate body respectively, and a through hole is formed in the guard plate body. The flange is at least arranged around the edge of one side of the guard plate body in the first direction and the corner area of the edge. The guard plate structure can be applied to a battery box body, the battery box body is applied to a battery, the battery is applied to an electric device, and one side provided with a flanging can be used as a windward side to be installed in the electric device in the process of installing the battery. So set up, in the use of battery, because turn-ups cladding is in one side of box bottom plate, consequently backplate structure and box bottom plate are sheltered from by the clearance in the longitudinal direction of one side at least in the first direction to can reduce the condition that produces abnormal sound when the wind blows narrow and small gap.

The guard plate structure provided in the embodiment of the present application is explained in detail below.

As shown in fig. 1 to 3, the guard plate structure 110 provided in the embodiment of the present application is used to be installed at the bottom of the bottom plate 120 of the case. The guard plate structure 110 includes: the protective plate comprises a protective plate body 111, a first flanging 112 and a second flanging 113, wherein the first flanging 112 is arranged at one side edge of the protective plate body 111 in a first direction (A-A), two ends of the first flanging 112 are respectively connected with the second flanging 113, two second flanging 113 are arranged at two opposite sides of the protective plate body 111 at intervals in a second direction (B-B), the first direction (A-A) and the second direction (B-B) are located on the same plane and are intersected, the protective plate body 111 is provided with a through hole 1111, and the through hole 1111 penetrates through the protective plate body 111.

The guard plate structure 110 is configured to be mounted on the bottom of the bottom plate 120 of the case, specifically, as shown in fig. 1 and 2, the guard plate structure 110 is located on the bottom of the bottom plate 120 of the case. The bottom of the tank bottom plate 120 includes not only a region below the tank bottom plate 120, but also a partial region adjacent to the tank bottom plate 120 but above the tank bottom plate 120. For example, the bottom plate 120 includes a support plate 121 and a frame 122, the frame 122 is located above the support plate 121, and the frame 122 is enclosed on the periphery of the support plate 121. In this example, the bottom of the case bottom plate 120 includes both the bottom surface of the support plate 121 and a relatively lower portion of the outer side surface of the rim 122, that is, a region of the outer side surface of the rim 122 that is closer to the support plate 121.

In this embodiment, the first direction, the second direction, and the third direction are different directions, and illustratively, the first direction, the second direction, and the third direction are perpendicular to each other, in the drawings of this embodiment, the first direction is a direction indicated by an A-A arrow, the second direction is a direction indicated by a B-B arrow, and the third direction is a direction indicated by a C-C arrow.

The guard body 111 is specifically a plate-like structure, and alternatively, the guard body 111 may be a circular plate-like structure, a polygonal plate-like structure, or other irregularly shaped plate-like structures. Illustratively, the structural shape of the protecting plate body 111 is adapted to the structural shape of the case bottom plate 120, and when the battery case 100 is a square or substantially square case structure, the projection of the case bottom plate 120 in the height direction thereof is rectangular, and the projection of the protecting plate body 111 in the height direction thereof is also rectangular. In the following embodiments, the shield body 111 is exemplified as a rectangular plate-like structure. The shield body 111 has a length direction, a width direction, and a height direction. The first direction may be any direction in a plane perpendicular to the height direction in the shield body 111, for example, a length direction or a width direction of the shield body 111. The first flange 112 is disposed at a side edge of the guard plate body 111 in the first direction (A-A), specifically, the first flange 112 may be disposed at a side edge of the guard plate body 111 along the length direction, where the first direction (A-A) is the length direction of the guard plate body 111; alternatively, the first flange 112 may be located at one side edge of the shield body 111 in the width direction, and the first direction (A-A) may be the width direction of the shield body 111. In the following embodiments, for convenience of description, the first direction (A-A) is taken as the length direction of the guard plate body 111, the second direction (B-B) is taken as the width direction of the guard plate body 111, and the third direction (C-C) is taken as the height direction of the guard plate body 111.

The two ends of the first flange 112 are respectively connected with a second flange 113, specifically, the two ends of the first flange 112 along the extending direction of the first flange 112 are respectively connected with a second flange 113. The extending direction of the first flange 112 is different from the extending direction of the second flange 113. When the guard plate body 111 is rectangular in the third direction (C-C), the first flange 112 extends in the second direction (B-B), and the second flange 113 extends in the first direction (A-A). As shown in fig. 3, the number of the second flanges 113 is two, the two second flanges 113 are arranged at intervals along the extending direction of the first flange 112, one of the second flanges 113 is connected with one end of the first flange 112, and the other second flange 113 is connected with the other end of the first flange 112. The first flange 112 and the second flange 113 may be sealed and connected by gluing, welding or integrally molding.

The two second flanges 113 are disposed at opposite sides of the guard body 111 at intervals in the second direction (B-B), that is, the guard body 111 has opposite sides disposed at intervals along the second direction (B-B), wherein one second flange 113 is disposed at one side of the guard body 111, and the other second flange 113 is disposed at the opposite side of the guard body 111. The second flange 113 and the guard plate body 111 can be in sealing connection by means of gluing, welding or integral molding.

The first flange 112 and the second flange 113 are both located at the edge of the shield body 111, and in the third direction (C-C), the length of the first flange 112 is greater than the length of the shield body 111, and the length of each second flange 113 is greater than the length of the shield body 111. So arranged, when the apron body 111 is positioned at the bottom of the tank bottom plate 120, the first flange 112 and the second flange 113 are positioned outside the side surfaces of the bottom region of the tank bottom plate 120, respectively.

The through hole 1111 penetrates the guard plate body 111, specifically, the axial direction of the through hole 1111 may be a third direction (C-C), or an included angle between the through hole 1111 and the third direction (C-C) may be an acute angle, that is, the through hole 1111 may be a vertical hole or an inclined hole. Illustratively, as shown in FIGS. 3 and 4, the through-holes 1111 extend through the shield body 111 in a third direction (C-C) such that liquid on the shield body 111 is quickly discharged through the through-holes 1111.

According to the above technical solution, in the embodiment of the present application, the first flange 112 is disposed at the edge of one side of the guard plate body 111 along the first direction (A-A), and the second flange 113 is disposed at two opposite sides of the guard plate body 111, when the guard plate structure 110 is installed at the bottom of the bottom plate 120, the guard plate body 111 is located below the bottom plate 120, so as to provide a better protection effect for the bottom plate 120, the first flange 112 wraps at least one side of the outer peripheral surface of the bottom plate 120, since two ends of the first flange 112 are respectively connected with a second flange 113, and the connection portion of the first flange 112 and the second flange 113 wraps the corner region of the outer peripheral surface of the bottom plate 120, so that at least one side of the outer peripheral surface of the bottom plate 120 and two corner regions of the side can be wrapped by the first flange 112 and the second flange 113. On the one hand, in the third direction (C-C), the first flange 112 and the second flange 113 can block the gap between the shield body 111 and the case bottom plate 120, so that abnormal sound due to the existence of a narrow gap is reduced when the air flow blows across the side. On the other hand, the first flange 112 and the second flange 113 can prevent at least part of the liquid from flowing onto the guard plate body 111, that is, at least part of the liquid can be prevented from flowing into the guard plate structure 110 by the first flange 112 and the second flange 113, so that the waterproof effect of the guard plate structure 110 is improved. Since the through holes 1111 are formed in the guard plate body 111, since the through holes 1111 penetrate the guard plate body 111, even if a small portion of liquid flows between the guard plate structure 110 and the bottom plate 120 of the case, the liquid in the guard plate structure 110 can be timely discharged through the through holes 1111, so that the problem of long-term water accumulation between the guard plate body 111 and the bottom plate 120 of the case is solved to a certain extent.

The first flange 112 is disposed at a side edge of the fender body 111 in the first direction (A-A), and the first flange 112 may be disposed at a side edge of the fender body 111 in the windward direction, for example. That is, in practical application, the guard plate body 111 has a first side and a second side that are disposed at intervals along the air flowing direction, and when air flows from the first side to a direction close to the second side relative to the guard plate body 111, the first side is a side of the guard plate body 111 in the windward direction. By positioning the first flange 112 at one side of the guard plate body 111 in the windward direction, at least part of the liquid carried by the air flow can be blocked from entering the guard plate structure 110 by the first flange 112, so as to improve the waterproof effect of the guard plate structure 110. In some embodiments, when the power consumption device 1 is a vehicle, the first direction (A-A) is the same as the traveling direction of the vehicle, and the first flange 112 is located on a side of the apron body 111 on a front side in the traveling direction of the vehicle. For example, when the electric device 1 is a vehicle, as shown in fig. 1 to 3, the first flange 112 is located on the front side of the apron body 111 in the vehicle traveling direction. In the drawings of the embodiment of the present application, the X arrow points to the front side of the traveling direction of the vehicle when the electric device 1 is the vehicle. So set up, in the vehicle driving, accessible first turn-ups 112 stops most liquid to flow to on the backplate body 111, i.e. accessible first turn-ups 112 stops most liquid inflow backplate structure 110 in, has improved backplate structure 110's water-proof effects. Since the possibility of generating abnormal sound on the windward side is highest, the first flange 112 is disposed on the front side in the vehicle running direction, and can play a better role in reducing abnormal sound with fewer flanges. The first flange 112 is provided on the front side in the traveling direction of the vehicle by adjusting the mounting angle during mounting of the structure (e.g., battery case) to which the apron structure 110 is applied to the vehicle.

In this embodiment, the first flange 112 is disposed at an angle to the guard plate body 111, the second flange 113 is disposed at an angle to the guard plate body 111, and the angle between the first flange 112 and the guard plate body 111, and the angle between the second flange 113 and the guard plate body 111 are adapted to the angle between the side surface of the tank bottom plate 120 and the guard plate body 111. Illustratively, the bottom plate 120 of the case includes a supporting plate 121 and a frame 122, the supporting plate 121 is disposed parallel to the protecting plate body 111, the frame 122 is enclosed on the periphery of the supporting plate 121, the frame 122 and the supporting plate 121 enclose to form a containing space 123, and the containing space 123 is used for placing the battery cell 200. The first flange 112 is attached to one side of the frame 122, and an angle between the side of the frame 122 attached to the first flange 112 and the support plate 121 is equal to an angle between the first flange 112 and the guard plate body 111. The two second flanges 113 are respectively attached to the other two opposite sides of the frame 122. The angle between the support plate 121 and the side of the frame 122, which is attached to the corresponding second flange 113, is equal to the angle between the corresponding second flange 113 and the shield body 111. In this way, the degree of fit between the first flange 112 and the second flange 113 and a side surface of the frame 122 facing away from the accommodating space 123 can be improved, so that the sealing effect between the first flange 112 and the second flange 113 and the bottom plate 120 of the box body can be improved. In one example, as shown in fig. 1, 2 and 4, an included angle between a side surface of the frame 122 facing away from the accommodating space 123 and a side surface of the guard plate body 111 facing the bottom plate 120 of the case is equal to 90 degrees, and an included angle between the first flange 112 and the guard plate body 111, and an included angle between each second flange 113 and the guard plate body 111 are also equal to 90 degrees.

In one possible design, as shown in fig. 3 and 4, the guard plate body 111, the first flange 112, and the second flange 113 enclose a drainage space 116, the through hole 1111 communicates with the drainage space 116, and a drainage opening 1161 is formed on a side of the drainage space 116 away from the first flange 112.

The guard plate body 111, the first flange 112 and the second flange 113 enclose a drainage space 116, that is, the drainage space 116 is located at one side of the guard plate body 111, the first flange 112 is located at one side of the drainage space 116 along the first direction (A-A), and the two second flanges 113 are respectively located at two opposite sides of the drainage space 116 which are arranged at intervals along the second direction (B-B). In some embodiments, the first flange 112 is located on the windward side of the drainage space 116, so that most of the liquid is blocked from entering the drainage space 116 by the first flange 112, and the waterproof effect of the guard plate structure 110 is improved. Since the through holes 1111 communicate with the drainage space 116, so that the liquid in the drainage space 116 is discharged from the through holes 1111, the drainage effect of the guard plate structure 110 is improved.

The drain space 116 forms a drain opening 1161 on a side away from the first flange 112, and since the size of the first flange 112 and the size of the second flange 113 are larger than those of the apron body 111 in the third direction, the apron body 111 is not provided with the first flange 112 or the second flange 113, i.e., the drain opening 1161 is naturally formed on a side surface thereof. That is, the drainage openings 1161 may be formed naturally after the first flange 112 and the second flange 113 are formed on the shield body 111 without adding a process flow to the shield structure 110. When the first flange 112 is located on the windward side of the drainage space 116, the drainage opening 1161 is located on the leeward side of the drainage space 116. That is, the first flange 112 and the drain opening 1161 are sequentially spaced apart in the air flow direction. Since the liquid can flow along with the flowing direction of the air flow, after the first flange 112 blocks most of the liquid outside the drainage space 116, even if a small part of the liquid enters the drainage space 116, the liquid can be quickly discharged outside the drainage space 116 through the drainage opening 1161, so that the drainage effect of the guard plate structure 110 is improved. In addition, since the drain opening 1161 is located on the leeward side of the drain space 116, in most use cases, the air flow is not directly blown toward the drain opening 1161, so that the arrangement of the drain opening 1161 does not increase the possibility of abnormal noise, but improves the drain efficiency.

According to the above-described aspects, the drainage openings 1161 are provided to facilitate faster drainage of the liquid in the guard structure 110. And because the drainage space 116 is formed by enclosing the guard plate body 111, the first flange 112 and the second flange 113, after the guard plate body 111, the first flange 112 and the second flange 113 enclose the drainage space 116, a drainage opening 1161 can be directly formed at one side of the drainage space 116 away from the first flange 112, so that the process flow of independently forming the drainage opening 1161 is reduced, the production efficiency is improved, and the production cost is saved.

In some embodiments, as shown in FIG. 4, the two sides of the shield body 111 in the third direction (C-C) are parallel. I.e., the shield body 111 may be made of a flat plate-like sheet material.

In other embodiments, as shown in fig. 5, the guard body 111 has a water guiding surface 1112, and the water guiding surface 1112 is disposed obliquely downward from an end near the first flange 112 to an end near the drain opening 1161.

The side of the guard plate body 111 facing away from the water guiding surface 1112 is a horizontal plane, that is, when the guard plate body 111 and the water guiding surface 1112 are placed on a horizontal table or ground, the water guiding surface 1112 of the guard plate body 111 is an inclined plane, and an included angle exists between the water guiding surface 1112 and the horizontal plane. The water guide surface 1112 is disposed obliquely downward from an end near the first flange 112 to an end near the drain opening 1161, that is, the water guide surface 1112 is an inclined surface disposed obliquely to the horizontal, and an end of the water guide surface 1112 which is relatively higher is disposed near the first flange 112 and an end which is relatively lower is disposed near the drain opening 1161.

In this arrangement, by arranging the water guiding surface 1112 obliquely downward from the end close to the first flange 112 to the end close to the drain opening 1161, the liquid on the guard plate body 111 flows to the direction close to the drain opening 1161 under the action of self gravity and is discharged from the drain opening 1161, so as to improve the drainage efficiency of the guard plate structure 110.

In one possible design, as shown in fig. 3 and 4, the lengths of the two second cuffs 113 are the same as the length of the apron body 111 in the first direction (A-A), respectively.

In this arrangement, since the length of the second flange 113 is the same as the length of the guard plate body 111, the relative contact area between the second flange 113 and the bottom plate 120 of the case can be increased, thereby improving the waterproof effect of the guard plate structure 110. Meanwhile, since the two second flanges 113 are arranged on two opposite sides of the guard plate body 111 at intervals, a certain limiting effect can be achieved on the box bottom plate 120 through the two second flanges 113, so that the connection stability between the guard plate structure 110 and the box bottom plate 120 is improved, and meanwhile, the protection effect of the guard plate structure 110 on the box bottom plate 120 can be improved.

In another possible design, as shown in fig. 6 and 7, the length of both second cuffs 113 is less than the length of the apron body 111 in the first direction (A-A). That is, in the first direction (A-A), the length of any one of the second flanges 113 is smaller than the length of the shield body 111. Since the two second flanges 113 are respectively connected to two ends of the first flange 112, and the first flange 112 is located at an edge of the guard plate body 111 in the first direction (A-A), one end of the guard plate body 111 away from the first flange 112 is exposed, so that notches 1162 are respectively formed on two sides of a portion of the guard plate body 111 away from the first flange 112 in the second direction (B-B), the two notches 1162 are respectively located on two opposite sides of the drain space 116 in the second direction (B-B), the two notches 1162 are respectively communicated with the drain space 116, and the two notches 1162 are also respectively communicated with the drain opening 1161. In this arrangement, the liquid in the drainage space 116 can be discharged from the drainage opening 1161 to the outside of the drainage space 116 along the first direction (A-A), and can be discharged from the notches 1162 located on two opposite sides of the drainage space 116 along the second direction (B-B) to the outside of the drainage space 116 along the second direction (B-B), so that the drainage area of the guard plate structure 110 is enlarged, and the drainage effect of the guard plate structure 110 is improved.

In some embodiments, when the powered device 1 is a vehicle, the liquid in the drainage space 116 will move in the second direction (B-B) due to inertia during cornering of the vehicle. Therefore, by making the length of the second flange 113 in the first direction (A-A) smaller than the length of the fender body 111 in the first direction (A-A), the drainage effect of the fender structure 110 is improved by facilitating the outflow of the liquid in the drainage space 116 from the at least one gap 1162 during the cornering of the vehicle.

In one possible design, as shown in fig. 3, a plurality of case bottom plate fixing structures 114 are disposed on the first flange 112 and the second flange 113 at intervals, respectively.

The tank floor fixing structure 114 specifically refers to a structure for connecting with the tank floor 120. The first flange 112 and the second flange 113 are respectively provided with a plurality of case bottom plate fixing structures 114 at intervals. That is, the first flange 112 and the second flange 113 have a plurality of structures connected to the case bottom plate 120, respectively.

According to the above technical solution, the plurality of tank bottom plate fixing structures 114 are respectively arranged on the first flange 112 and the second flange 113, so as to improve the connection stability between the first flange 112 and the tank bottom plate 120, improve the connection stability between the second flange 113 and the tank bottom plate 120, reduce the possible gap between the first flange 112 and the tank bottom plate 120, and reduce the possible gap between the second flange 113 and the tank bottom plate 120, so as to further improve the waterproof effect of the first flange 112 and the second flange 113.

In some embodiments, the tank floor securing structure 114 may be a welded structure, an adhesive structure, a snap-fit structure, a screw-fit structure, or other connection structure. For example, when the case bottom plate fixing structure 114 is a welded structure, the first flange 112 and the second flange 113 may be provided with regions for welding with the case bottom plate 120, that is, the welded structure, that is, the case bottom plate fixing structure 114, respectively. When the case bottom plate fixing structure 114 is an adhesive structure, the first flange 112 and the second flange 113 may be respectively coated with glue, and the glue is adhered to the case bottom plate 120 by the glue, which is the adhesive structure, that is, the glue is the case bottom plate fixing structure 114; alternatively, the first flange 112 and the second flange 113 may have areas for bonding with glue, and the first flange 112 and the second flange 113 may be connected by injecting glue between the areas and the bottom plate 120 of the case, where the areas for bonding with glue are the fixing structure 114 of the bottom plate of the case.

In some embodiments, the bottom plate fixing structure 114 is a screw structure, as shown in fig. 4, the bottom plate fixing structure 114 includes a mounting hole 1141 and a fixing member 1142, the mounting hole 1141 is disposed on the corresponding first flange 112 or the second flange 113, and the fixing member 1142 is disposed through the mounting hole 1141.

The assembly holes 1141 are disposed on the corresponding first flange 112 or second flange 113, that is, the assembly holes 1141 of the case bottom plate fixing structure 114 of the first flange 112 are disposed on the first flange 112, and the assembly holes 1141 of the case bottom plate fixing structure 114 of the second flange 113 are disposed on the second flange 113. The fitting hole 1141 on the first flange 112 penetrates the first flange 112 in the height direction of the first flange 112, and the fitting hole 1141 of the second flange 113 penetrates the second flange 113 in the height direction of the second flange 113. Thus, when the fixing member 1142 is inserted into the fitting hole 1141, the fixing member 1142 may be connected to the bottom plate 120 through the corresponding first flange 112 or the second flange 113. Optionally, the mounting hole 1141 on the first flange 112 extends through the first flange 112 in the first direction (A-A), and the mounting hole 1141 on the second flange 113 extends through the second flange 113 in the second direction (B-B).

In this arrangement, the bottom plate 120 of the case body is provided with a connecting hole 1221 corresponding to each of the fitting holes 1141 of the first flange 112 and the second flange 113, and the fixing member 1142 is connected to the connecting hole 1221 after passing through the corresponding fitting hole 1141. In some embodiments, the fixing member 1142 is a screw or bolt, and the connecting hole 1221 may be a threaded hole, and the fixing member 1142 and the connecting hole 1221 are connected by threads.

According to the above-mentioned technical solution, the first flange 112 and the second flange 113 are connected with the bottom plate 120 of the case by providing the assembly hole 1141 and the fixing member 1142.

In some embodiments, the first flange 112 is connected to an edge of one side of the apron body 111 in the first direction (A-A) by a plurality of fasteners 1142, and the two second flanges 113 are respectively connected to edges of opposite sides of the apron body 111 spaced apart in the second direction (B-B). The first flange 112 is located on one side of the bottom panel 120 along the first direction (A-A), and the two second flanges 113 are located on opposite sides of the bottom panel 120 spaced apart along the second direction (B-B).

In one possible design, as shown in fig. 4, the number of the tank bottom plate fixing structures 114 is plural, the plural tank bottom plate fixing structures 114 are divided into a plurality of fixing members, and one set of fixing members includes at least two tank bottom plate fixing structures 114, and a distance between two adjacent tank bottom plate fixing structures 114 in the same fixing member is smaller than a minimum distance between tank bottom plate fixing structures 114 in two adjacent sets of fixing members.

The plurality of tank bottom plate fixing structures 114 are divided into a plurality of fixing assemblies, that is, the plurality of tank bottom plate fixing structures 114 are divided into at least two groups of fixing assemblies, one group of fixing assemblies including at least two tank bottom plate fixing structures 114. In some embodiments, the plurality of case bottom plate fixing structures 114 are divided into six groups of fixing elements, two groups of fixing elements are provided on the first flange 112, two groups of fixing elements are provided on one of the second flanges 113, and two groups of fixing elements are provided on the other second flange 113.

One set of securing assemblies includes at least two tank floor securing structures 114, that is, at least two tank floor securing structures 114 in each set. In some alternative embodiments, the number of tank floor securing structures 114 in each set may be two, three, four, or more. Illustratively, in FIG. 3, the number of tank floor securing structures 114 in each set is two.

The minimum distance between two adjacent sets of tank floor mounting structures 114 is specifically the distance between the tank floor mounting structure 114 of one set of mounting assemblies that is closest to the other set of mounting assemblies and the tank floor mounting structure 114 of the other set of mounting assemblies that is closest to the previous set of mounting assemblies.

By making the distance between two adjacent tank floor securing structures 114 in each set of securing assemblies smaller, the degree of stability of the connection between the area adjacent to the set of securing assemblies and the tank floor 120 can be improved. Illustratively, taking the first flange 112 as an example, the first flange 112 has a plurality of connection areas arranged at intervals, and a group of box bottom plate fixing structures 114 is disposed in each connection area, and since each group includes at least two box bottom plate fixing structures 114, and the distance between two adjacent box bottom plate fixing structures 114 is relatively smaller, the connection stability between the box bottom plates 120 in each connection area is enhanced, and the distance between two adjacent connection areas can be further increased, so that fewer connection areas can be disposed on the first flange 112 with a certain length, and the connection stability between the first flange 112 and the box bottom plates 120 can be satisfied. Since the number of connection areas is reduced, the number of the tank bottom plate fixing structures 114 can be reduced, and thus the number of operations of connecting the tank bottom plate fixing structures 114 with the tank bottom plate 120 can be reduced, so that the assembly efficiency between the guard plate structure 110 and the tank bottom plate 120 can be improved.

It can be seen from the above that, according to the above technical solution, the plurality of tank bottom plate fixing structures 114 are grouped and arranged, and each group includes at least two tank bottom plate fixing structures 114, so that relatively fewer tank bottom plate fixing structures 114 are arranged, the guard plate structure 110 and the tank bottom plate 120 can be stably connected, and the assembly efficiency between the guard plate structure 110 and the tank bottom plate 120 is improved.

In one possible design, as shown in fig. 3 and 4, the first flange 112 and the second flange 113 each have an adhesive surface 115.

The adhesive surface 115 may be a surface for bonding with glue or a surface coated with glue. That is, glue may or may not be present on the adhesive surface 115 before the first flange 112 is connected to the bottom panel 120 and before the second flange 113 is connected to the bottom panel 120. Before the first flange 112 is connected with the box bottom plate 120 and before the second flange 113 is connected with the box bottom plate 120, the adhesive surface 115 is not provided with glue, so that glue can be injected between the adhesive surface 115 of the first flange 112 and the box bottom plate 120 and between the adhesive surface 115 of the second flange 113 and the box bottom plate 120 in the connection process of the first flange 112 and the box bottom plate 120 and in the connection process of the second flange 113 and the box bottom plate 120, and the adhesive effect of the glue can be well protected. Before the first flange 112 is connected with the box bottom plate 120, and before the second flange 113 is connected with the box bottom plate 120, the adhesive surface 115 is coated with glue, so that in the assembly process, only the first flange 112 and the second flange 113 are required to be respectively attached to the box bottom plate 120, which is beneficial to improving the assembly efficiency.

According to the above technical solution, the first flange 112 and the second flange 113 may be connected with the bottom plate 120 of the box body by means of gluing, so that the gap between the first flange 112 and the second flange 113 and the box body can be effectively reduced, and the sealing effect between the first flange 112 and the second flange 113 and the bottom plate 120 of the box body is better.

In one possible design, as shown in fig. 3, the number of through holes 1111 is plural, and the plural through holes 1111 are distributed at intervals on the shield body 111.

The plurality of through holes 1111 are spaced apart on the shield body 111, specifically, the plurality of through holes 1111 are spaced apart on the shield body 111 in any direction perpendicular to the third direction (C-C). Alternatively, the plurality of through holes 1111 are spaced apart in the first direction (A-A) on the shield body 111; alternatively, the plurality of through holes 1111 are spaced apart in the second direction (B-B) on the shield body 111; alternatively, the plurality of through holes 1111 are simultaneously spaced apart in the first direction (A-A) and the second direction (B-B) on the shield body 111, that is, the plurality of through holes 1111 are spaced apart in the first direction (A-A) and the plurality of through holes 1111 are spaced apart in the second direction (B-B) on the shield body 111. Illustratively, the number of through holes 1111 is four, with four through holes 1111 being distributed in a rectangular array. As shown in fig. 3, the four through holes 1111 are divided into two groups, each group including two through holes 1111, the two groups of through holes 1111 being spaced apart in the first direction (A-A) on the shield body 111, and the two through holes 1111 in each group being spaced apart in the second direction (B-B) on the shield body 111.

In this arrangement, the plurality of through holes 1111 are provided at intervals in the guard plate body 111, which is advantageous in improving the drainage effect of the guard plate structure 110.

In one possible design, the guard body 111, the first flange 112 and the second flange 113 are of unitary construction.

The first flange 112 and the second flange 113 are connected into an integral structure, specifically, the first flange 112 and the second flange 113 may be manufactured in an integral forming manner. For example, the first flange 112 and the second flange 113 are connected as a unitary structure by integrally cast molding or press molding. Alternatively, the first flange 112 and the second flange 113 may be connected as a unitary structure by welding or gluing. For example, the guard plate body is manufactured by a flat plate, the flat plate is cut and bent to form the first flange 112 and the second flange 113, the non-bent part is the guard plate body 111, and one end, adjacent to each other, of the first flange 112 and the corresponding second flange 113 is welded, so that the first flange 112 is connected with the second flange 113, and the joint has good sealing performance.

In this arrangement, the first flange 112 and the second flange 113 are integrally formed, which is beneficial to manufacturing the first flange 112 and the second flange 113; on the other hand, the connection between the first flange 112 and the second flange 113 has no gap, thereby further improving the waterproof effect of the guard plate structure 110.

The embodiment of the application provides a battery box 100, as shown in fig. 8 and fig. 1, including a box bottom plate 120 and a guard plate structure 110 provided by any one of the above technical schemes, the guard plate structure 110 is fixedly connected to the box bottom plate 120.

The guard plate structure 110 includes a guard plate body 111, a first flange 112 and a second flange 113, the guard plate body 111 is located at the bottom of the case bottom plate 120, the first flange 112 is located at one of the circumferential sides of the case bottom plate 120, and the second flange 113 is located at a different side from the first flange 112 in the circumferential sides of the case bottom plate 120. Since the first flange 112 is connected to the second flange 113, the first flange 112 and the second flange 113 completely cover at least a partial region near the bottom of at least one of the circumferential side surfaces of the case bottom plate 120. When the battery case 100 is applied to the electric device 1, the first flange 112 is provided on the windward side of the electric device 1, and when the electric device 1 is a vehicle, the first flange 112 is located on the front side of the battery case 100, which is referred to as the front side with respect to the vehicle traveling direction, for example.

Since the battery case 100 includes the guard plate structure 110, at least all the beneficial effects of the guard plate structure 110 are not described herein.

In some examples, in projection in the third direction (C-C), the shape of the shield body 111 is adapted to the shape of the tank floor 120. For example, as shown in fig. 1 and 2, the projection shape of the case bottom plate 120 in the third direction (C-C) is rectangular, and the projection shape of the shield body 111 in the third direction (C-C) is also rectangular. In projection, the length and width dimensions of the guard plate body 111 are slightly larger than those of the bottom plate 120 of the case, that is, the first flange 112 and the second flange 113 can be wrapped on the circumferential side surface of the bottom plate 120 of the case.

In some embodiments, the guard structure 110 is fixedly connected to the tank bottom plate 120 through the first flange 112 and the second flange 113, that is, the connection between the guard structure 110 and the tank bottom plate 120 is located on the first flange 112 and the second flange 113, and no structure for connecting to the tank bottom plate 120 is provided on the guard body 111.

In some possible embodiments, as shown in fig. 2 and 3, the first flange 112 and the second flange 113 are each provided with a tank bottom plate fixing structure 114, and the tank bottom plate fixing structure 114 includes a fitting hole 1141 and a fixing member 1142. The first flange 112 and the second flange 113 are respectively provided with an assembly hole 1141, and the fixing member 1142 passes through the assembly holes 1141 and is connected with the circumferential side wall of the bottom plate 120 of the case. The fixing member 1142 may be a bolt, and in order to facilitate assembling the bolt, a threaded hole may be provided on the bottom plate 120 of the case opposite to the assembling hole 1141, and the bolt is screwed into the threaded hole after passing through the assembling hole 1141, so as to fixedly connect the flange with the bottom plate 120 of the case. An elastic washer can be further arranged between the head of the bolt and the corresponding first flange 112 or second flange 113, and the elastic washer plays a role in preventing the bolt from loosening.

An embodiment of the present application provides a battery 10, as shown in fig. 8, including: the battery case 100 according to any one of the above embodiments.

Since the battery 10 includes the battery case 100, at least the whole advantageous effects of the battery case 100 are not described herein.

In one embodiment, the battery 10 includes a battery case 100 and a battery cell 200, and the battery cell 200 is received in a receiving unit of the battery case 100.

In the battery 10, the number of the battery cells 200 may be plural, and the plural battery cells 200 may be connected in series, parallel, or series-parallel, where series-parallel refers to both of the plural battery cells 200 being connected in series and parallel. The plurality of battery cells 200 can be directly connected in series or in parallel or in series-parallel, and then the whole formed by the plurality of battery cells 200 is accommodated in the box body; of course, the battery 10 may also be a battery module form formed by connecting a plurality of battery cells 200 in series or parallel or series-parallel connection, and then connecting a plurality of battery modules in series or parallel or series-parallel connection to form a whole and be accommodated in a case. The battery 10 may also include other structures, for example, the battery 10 may also include a bus member for making electrical connection between the plurality of battery cells 200.

Wherein each battery cell 200 may be a secondary battery or a primary battery; but not limited to, lithium sulfur batteries, sodium ion batteries, or magnesium ion batteries. The battery cell 200 may be in the shape of a cylinder, a flat body, a rectangular parallelepiped, or other shapes, etc.

An embodiment of the present application provides an electric device 1, as shown in fig. 9, which includes a battery 10 in the above embodiment, where the battery 10 is used to provide electric energy.

Since the power consumption device 1 includes the above-mentioned battery 10, it has at least all the advantageous effects of the above-mentioned battery 10, and will not be described in detail herein.

The power consumption device 1 may be, but is not limited to, a mobile phone, a tablet, a notebook computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, etc. Among them, the electric toy may include fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys, electric plane toys, and the like, and the spacecraft may include planes, rockets, space planes, and spacecraft, and the like.

For convenience of description, the following embodiment will take an electric device 1 according to an embodiment of the present application as an example of a vehicle. The vehicle can be a fuel oil vehicle, a fuel gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle or a range-extended vehicle and the like. The battery 10 is provided in the interior of the vehicle, and the battery 10 may be provided at the bottom or the head or the tail of the vehicle. The battery 10 may be used for power supply of a vehicle, for example, the battery 10 may be used as an operating power source of the vehicle. The vehicle may also be provided with a drive mechanism 30 and a control mechanism 20, the drive mechanism 30 may be a motor or the like, and the control mechanism 20 is used to control the battery 10 to power the motor, for example, for operating power requirements during start-up, navigation and travel of the vehicle.

In some embodiments of the present application, the battery 10 may be used not only as an operating power source for a vehicle, but also as a driving power source for a vehicle to supply driving power to the vehicle instead of or in part of fuel oil or natural gas.

In some embodiments, as shown in fig. 9, 3 and 4, the electric device 1 is a vehicle, the first direction (A-A) is parallel to the traveling direction of the vehicle, and the first flange 112 is provided on the front side of the apron body 111 in the traveling direction of the vehicle.

In this arrangement, since the first direction (A-A) is the running direction of the vehicle, the first flange 112 is disposed on one side of the guard board body 111 along the running direction of the vehicle, and the liquid can be effectively prevented from entering the guard board structure 110 during the forward movement of the vehicle by the first flange 112, so that the waterproof effect of the guard board structure 110 is effectively improved.

In one embodiment, a battery case 100 is provided, as shown in fig. 4-8, comprising a case bottom plate 120 and a guard plate structure 110. The shield structure 110 includes a shield body 111, a first flange 112, and a second flange 113. The shield body 111 is located at the bottom of the tank bottom plate 120, the first flange 112 is located at one of the circumferential sides of the tank bottom plate 120, and the second flange 113 is located at a different side from the first flange 112 in the circumferential sides of the tank bottom plate 120. Since the first flange 112 is connected to the second flange 113, the first flange 112 and the second flange 113 completely cover at least a partial region near the bottom of at least one of the circumferential side surfaces of the case bottom plate 120. When the battery case 100 is applied to the electric device 1, the first flange 112 is provided on the windward side of the electric device 1, and when the electric device 1 is a vehicle, the first flange 112 is located on the front side of the battery case 100, which is referred to as the front side with respect to the vehicle traveling direction, for example. In the projection in the third direction (C-C), the shape of the shield body 111 is the same as the shape of the case bottom plate 120. Illustratively, if the projection shape of the bottom plate 120 of the case in the third direction (C-C) is rectangular, the projection shape of the shield body 111 in the third direction (C-C) is also rectangular. In projection, the length and width dimensions of the guard plate body 111 are slightly larger than those of the bottom plate 120 of the case, that is, the first flange 112 and the second flange 113 can be wrapped on the circumferential side surface of the bottom plate 120 of the case. The first flange 112 and the second flange 113 are provided with a bottom plate fixing structure 114, and the bottom plate fixing structure 114 includes an assembly hole 1141 and a fixing member 1142. The first flange 112 and the second flange 113 are respectively provided with an assembly hole 1141, and the fixing member 1142 passes through the assembly holes 1141 and is connected with the circumferential side wall of the bottom plate 120 of the case. The fixing member 1142 may be a bolt, and in order to facilitate assembling the bolt, a threaded hole may be provided on the bottom plate 120 of the case opposite to the assembling hole 1141, and the bolt is screwed into the threaded hole after passing through the assembling hole 1141, so as to fixedly connect the first flange 112 and the second flange 113 with the bottom plate 120 of the case. The shield body 111 is provided with a through hole 1111, and the through hole 1111 penetrates the shield body 111 in the third direction (C-C). The guard plate body 111, the first flange 112 and the second flange 113 enclose a drainage space 116, that is, the guard plate body 111 is located at the lower side of the drainage space 116, the first flange 112 is located at one side of the drainage space 116 along the first direction (A-A), and the two second flanges 113 are respectively located at two opposite sides of the drainage space 116 which are arranged at intervals along the second direction (B-B). The drainage space 116 communicates with the through hole 1111. The side of the drainage space 116 remote from the first flange 112 forms a drainage opening 1161, the drainage opening 1161 being located between the two second flanges 113.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the embodiments, and are intended to be included within the scope of the claims and description. In particular, the technical features mentioned in the respective embodiments may be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions falling within the scope of the claims.

Claims (13)

1. A backplate structure for install in the bottom of box bottom plate, its characterized in that includes: backplate body, first turn-ups and second turn-ups, first turn-ups set up in backplate body is at one side edge of first direction, first turn-ups's both ends are connected with respectively the second turn-ups, two the second turn-ups in the second direction in the interval set up in backplate body in opposite both sides, first direction with the second direction is located the coplanar and intersects, backplate body is provided with the through-hole, the through-hole runs through backplate body, backplate body first turn-ups with the second turn-ups enclose to establish and form drainage space, the through-hole with drainage space intercommunication, drainage space keep away from one side of first turn-ups forms drainage opening.

2. The fender structure of claim 1, wherein the fender body has a water-guiding surface disposed obliquely downward from an end adjacent to the first flange to an end adjacent to the drain opening.

3. The fender structure of claim 1, wherein lengths of the two second flanges in the first direction are the same as lengths of the fender bodies, respectively.

4. A fender structure as claimed in any one of claims 1 to 3 wherein a plurality of tank floor securing structures are provided on each of the first flange and the second flange at intervals.

5. The fender structure of claim 4, wherein the tank bottom plate fixing structure includes a fitting hole provided on the corresponding first flange or second flange and a fixing member provided to pass through the fitting hole.

6. The fender structure of claim 4, wherein the number of said tank deck fastening structures is plural, and wherein the plural tank deck fastening structures are divided into a plurality of fastening members, and wherein one set of said fastening members includes at least two of said tank deck fastening structures, and wherein a distance between adjacent two of said tank deck fastening structures within the same fastening member is smaller than a minimum distance between adjacent two sets of said fastening members.

7. A fender structure as defined in any one of claims 1-3 wherein the first flange and the second flange each have an adhesive face.

8. A fender structure as claimed in any one of claims 1 to 3 wherein the number of said through holes is plural, and a plurality of said through holes are spaced apart on said fender body.

9. A fender structure as defined in any one of claims 1-3, wherein the fender body, the first flange, and the second flange are of unitary construction.

10. A battery compartment comprising a compartment floor and a guard plate structure as claimed in any one of claims 1 to 9, the guard plate structure being fixedly connected to the compartment floor.

11. A battery comprising a battery cell and the battery case of claim 10, wherein one or more of the battery cells are contained in the battery case.

12. An electrical device comprising the battery of claim 11, the battery being configured to power the electrical device.

13. The electric device according to claim 12, wherein the electric device is a vehicle, the first direction is parallel to a traveling direction of the vehicle, and the first flange is provided on a front side of the apron body in the traveling direction of the vehicle.