CN217823053U - Battery box, battery and power consumption device - Google Patents

Abstract

The utility model relates to a battery box, battery and power consumption device, the battery box includes two at least curb plates, mounting and ligature piece, first curb plate and the second curb plate along predetermineeing the direction interval and setting up relatively have in the curb plate of whole, the mounting is located on first curb plate and/or the second curb plate, fixed position has on it, the ligature piece is along predetermineeing the direction violently drawing between first curb plate and second curb plate, and twine in fixed position, and the first both ends reciprocal anchorage of ligature piece, perhaps, the first both ends of ligature piece are fixed in fixed position respectively. The problem that the battery box is easily extruded to damage can be solved to battery monomer inflation in this scheme.

Description

Battery box, battery and power consumption device

Technical Field

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

Background

The battery module includes battery box and arranges a plurality of battery monomer in battery box, plays the support guard action to a plurality of battery monomer through battery box. However, in the working process of the battery module, the battery monomer can expand to extrude the battery box body, so that the battery box body is easily extruded and damaged, and the battery monomer cannot be effectively supported and protected.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present application provides a battery case, a battery, and an electric device, which can solve the problem that the battery case is easily crushed and damaged due to the expansion of a battery cell.

In a first aspect, the present application provides a battery case, including: the side plates are arranged in a staggered manner along a preset direction, and the side plates are arranged oppositely; the fixing piece is arranged on the first side plate and/or the second side plate and is provided with a fixing position; the binding piece is transversely pulled between the first side plate and the second side plate along the preset direction and is wound on the fixing position; and the head and the tail of the binding piece are fixed with each other, or the head and the tail of the binding piece are respectively fixed at the fixing positions.

Among the technical scheme of this application embodiment, set up fixed position on the relative and spaced first curb plate of direction and second curb plate is predetermine along the edge of battery box, violently draw the ligature between first curb plate and second curb plate along this predetermined direction, and twine the ligature piece in fixed position, and the end reciprocal anchorage of ligature piece, or the end and the end both ends of ligature piece are fixed in fixed position respectively, make the fixed position at end and the end both ends of ligature piece be based on the actual size of battery box, thereby ensure that the ligature piece can undertake partly effort along predetermined direction effectively, reduce the effort that first curb plate and second curb plate received, reduce the impaired probability of battery box.

In some embodiments, the fixture includes: the main body is arranged on the first side plate and/or the second side plate; the fixing part is arranged at one end of the main body and protrudes out of the first side plate and/or the second side plate where the fixing part is located; wherein the fixing portion is formed on the fixing portion. Through the main part setting with the mounting on first curb plate and/or second curb plate, with the fixed part protrusion of mounting outside current place first curb plate and/or second curb plate for the ligature more conveniently twines at the fixed part.

In some embodiments, the fixing position includes a fixing hole and an inlet and an outlet, the fixing hole penetrates through the fixing portion along a direction perpendicular to the preset direction, and the inlet and the outlet are communicated between the fixing hole and an environment outside the fixing hole; wherein, the ligature spare twine in during the fixed position, follow the direction of height of battery box is spacing in the fixed orifices. Through set up on the mounting along the perpendicular direction of predetermineeing the fixed orifices that link up the fixed part to set up the access & exit and communicate between fixed orifices and outside, make along predetermineeing the direction and violently draw the ligature piece between first curb plate and second curb plate, can get into the fixed orifices through the access & exit, and the winding is convenient for operate on the mounting.

In some embodiments, the fixing member includes one or more sets, each set of the fixing member includes two fixing portions respectively disposed on the first side plate and the second side plate, and in each set of the fixing member, the inlets and the outlets of the two fixing locations face in directions away from each other. All set up the mounting on first curb plate and second curb plate for the head and the tail both ends of piece of ligature can twine respectively on two mountings, be convenient for select to fix the head and the tail both ends of piece of ligature each other or fix the head and the tail both ends of piece of ligature respectively according to actual operating environment. And the direction that the access & exit orientation deviates from each other of two fixings for the head and the tail both ends of ligature twine the back on the respective fixing piece that corresponds, when the ligature produced the pulling force to the fixing piece, the reaction force that the fixing piece on the first curb plate produced to the ligature of this end, and the reaction force opposite direction that the fixing piece on the second curb plate produced the ligature of this end, thereby make the ligature tighten. Therefore, when the components in the battery box body expand, the binding pieces can be tightened to bear a part of expansion force, and the probability that the battery box body is damaged is further reduced.

In some embodiments, the battery case further includes a locker provided to the binding member for fixing a head end or a tail end of the binding member. Fix the head end and the tail end of piece of ligature through the locking ware to the guarantee piece of ligature twines on fixed position steadily.

In some embodiments, the locker comprises: the locking sleeve is provided with a through hole and a locking hole; the through hole penetrates through the locking sleeve along the preset direction so as to allow the binding piece to pass through; the locking hole penetrates through the locking sleeve along the direction intersecting with the preset direction; and the locking piece is arranged in the locking hole in a penetrating way and fixes the head end or the tail end of the binding piece in the penetrating hole. Utilize the locking cover to pass the perforation with the head end of ligature the fixed process of head end specifically includes, pass the perforation with the head end earlier to twine the head end at fixed position, then pass the perforation once more with the head end, make the head end of ligature form loop configuration, insert the locking hole with the lock piece again, utilize the head end of lock piece with the ligature to fix in the perforation, the loop configuration that the head end that can make the ligature formed remains stable, thereby realizes the head end of ligature fixed at the locking position.

In some embodiments, the locking sleeve extends lengthwise along the preset direction, and the locking hole is formed in the locking sleeve along the height direction of the battery box body; the locking piece penetrates through the locking hole, and the head end or the tail end of the binding piece is pressed between the locking piece and the hole wall of the through hole. Through setting up the locking cover and extending for along predetermineeing the direction lengthwise, and the locking hole is seted up along the direction of height of battery box and is sheathe in the locking for the space that the locking ware took in the direction of the direction is predetermine to the perpendicular to is less.

In some embodiments, the locking sleeve extends lengthwise along a direction perpendicular to the preset direction, and the locking holes are formed at two opposite ends of the locking sleeve along the extending direction of the locking sleeve; the locking pieces are arranged in the locking holes at two ends of the locking sleeve in a penetrating mode respectively, and the head end or the tail end of each binding piece is clamped and fixed between the two locking pieces. Because the locking cover is along extending with presetting the direction vertically direction lengthwise, and the locking hole is seted up in the relative both ends of locking cover along the extending direction of locking cover for the space that the locking ware took in battery box direction of height and in presetting the direction is less.

In some embodiments, the head end or the tail end of the binding is locked and fixed by at least two locking devices. The head end or the tail end of the binding piece are locked and fixed through the plurality of locking devices, so that the stability of the binding piece is improved, and the binding piece can effectively bear acting force applied to the side plate.

In a second aspect, the present application provides a battery comprising the battery case of the above embodiment.

In a third aspect, the present application provides an electric device, which includes the battery in the above embodiments, and the battery is used for providing electric energy.

The above description is only an overview of the technical solutions of the present application, and the present application may be implemented in accordance with the content of the description so as to make the technical means of the present application more clearly understood, and the detailed description of the present application will be given below in order to make the above and other objects, features, and advantages of the present application more clearly understood.

Drawings

Various additional 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 application. Moreover, like reference numerals are used to refer to like elements throughout. In the drawings:

fig. 1 is a schematic structural diagram of a battery case according to an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is an exploded view of a battery module according to an embodiment of the present application;

FIG. 4 is a perspective view of a side plate and a fixing member according to an embodiment of the present application;

FIG. 5 is a side view of the side plate and the retaining member of FIG. 4;

FIG. 6 is a perspective view of the latch according to an embodiment of the present application;

FIG. 7 is a side view of the latch of FIG. 6;

FIG. 8 is a perspective view of a latch according to another embodiment of the present application;

FIG. 9 is a front view of the latch of FIG. 8;

FIG. 10 is a top view of the latch of FIG. 8;

FIG. 11 is a schematic structural diagram of a battery case according to another embodiment of the present application;

fig. 12 is a partial enlarged view at B in fig. 11.

The reference numbers illustrate:

1. a battery module; 10. a battery case; 11. a battery cell;

10a, a first side plate; 10b, a second side plate;

100. a fixing member; 101. a main body; 102. a fixed part; 103. a fixing hole; 104. an entrance and an exit;

110. a binding piece;

120. a lock; 121. a locking sleeve; 122. a locking member; 123. perforating; 124. and a locking hole.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

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

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

At present, the application of the power battery is more and more extensive 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 a plurality of fields such as military equipment and aerospace. With the continuous expansion of the application field of the power battery, the market demand is also continuously expanding.

At battery charge and discharge in-process, battery monomer can take place the inflation, and this just leads to battery monomer can produce great outside extrusion force to the battery box, and the battery box usually includes a plurality of welding curb plates together, and when receiving outside extrusion force, the easy fracture of welding department leads to the battery box to reduce the free support protection effect of battery.

The scheme that a steel belt is installed on a battery box body to reinforce the battery box body appears in the related art, specifically, the steel belt is set to be of a U-shaped structure and is sleeved on the battery box body, then two ends of the steel belt are fixed on the battery box body through bolts, and the extending direction of the steel belt is parallel to the direction of expansion force applied to the battery box body. Because the position that supplies the bolt fastening on the battery box is set up in advance, and the size of battery box and the size of steel band often have the tolerance to lead to the steel band can't overlap on the battery box, perhaps the steel band overlaps behind the battery box and can't closely cooperate between the two, make the steel band difficult to play a role, can't solve the battery box effectively and be damaged by the free bulging force of battery easily problem.

Based on the consideration, in order to solve the problem that the expansion force of a battery monomer easily causes the damage of the battery box body in the use process of the battery, through deep research, the inventor designs the battery box body, the binding piece is transversely pulled between the two opposite side plates of the battery box body, the binding piece is wound on the fixed position of the side plates and then fixed, the fixed position of the binding piece is matched with the actual size of the battery box body, and therefore the binding piece effectively bears a part of the expansion force.

In such battery box, because the length that ligature transversely pulled the position between relative both sides board equals with the interval between this both sides board for when battery monomer takes place the inflation, ligature can in time be tightened, thereby bears a part of bulging force in time, avoids battery box to receive too big outside extrusion force and the fracture.

FIG. 1 is a schematic structural diagram of a battery case according to an embodiment of the present disclosure; fig. 2 shows a partial enlarged view at a in fig. 1.

Referring to fig. 1 and 2, a battery case 10 according to an embodiment of the present invention includes at least two side plates, a fixing member 100, and a binding member 110. The binding device comprises a first side plate 10a and a second side plate 10b which are arranged in a preset direction at intervals and oppositely, fixing pieces 100 are arranged on the first side plate 10a and the second side plate 10b, or only one of the first side plate 10a and the second side plate 10b is provided with the fixing piece 100, fixing positions are arranged on the fixing pieces 100, binding pieces 110 are transversely pulled between the first side plate 10a and the second side plate 10b along the preset direction and are wound on the fixing positions, the head end and the tail end of the binding pieces 110 are fixed to each other, or the head end and the tail end of the binding pieces 110 are fixed to the fixing positions respectively.

It is understood that the battery case 10 may be formed by combining a plurality of plates that enclose a receiving space for receiving the battery cell, and the battery case 10 may have various shapes such as a polyhedral shape, a cylindrical shape, or a combination thereof according to the shapes of the plates and the combination thereof. In addition, among the plurality of plates that are combined to form the battery case 10, some adjacent plates may be integrally formed, for example, in case the battery case 10 is vertically placed, a bottom plate at the bottom of the battery case 10 and side plates surrounding the bottom plate may be integrally formed, or the side plates surrounding the bottom plate may be integrally formed, and the side plates are provided separately from the bottom plate.

When the plurality of plates combined to form the battery case 10 are of a split structure, the first side plate 10a is one of the plurality of plates combined to form the battery case 10, and the second side plate 10b is the other plate disposed opposite to the first side plate 10 a. When some adjacent plates are integrally formed among the plurality of plates that are combined to form the battery case 10, the first side plate 10a and the second side plate 10b may be the same plate that is integrally formed, and two portions of the plate that are disposed opposite to each other are the first side plate 10a and the second side plate 10b, respectively. Wherein, the first side plate 10a and the second side plate 10b have the same or different shapes.

The fixing member 100 may be a protruding structure provided at any position of the first side plate 10a and the second side plate 10b, and preferably, the fixing member 100 is provided at a side of the first side plate 10a and the second side plate 10b facing the outside of the battery case 10. The protruding structure is the same or different from the first side plate 10a and the second side plate 10b in material. Preferably, the fixing structure 100 is made of the same material as the first side plate 10a and the second side plate 10b, and the fixing structure 100 is welded or integrally formed with the first side plate 10a and the second side plate 10b.

The binding member 110 is a long object having flexibility to facilitate winding, and the specific material is not limited.

The position of fixing is reserved out on mounting 100 and is used for the position of the winding ligature of ligature piece 110, and for making the winding of ligature piece 110 more stable, this position can further set up groove structure, and a pile of ligature pieces 110 carry on spacingly.

In the technical scheme of this application embodiment, set up fixed position on the relative and spaced first curb plate 10a and/or second curb plate 10b of direction along presetting of battery box 10, violently draw between first curb plate 10a and second curb plate 10b along this preset direction with ligature 110, and twine ligature 110 in fixed position, and the end to end both ends reciprocal anchorage of ligature 110, or the end to end both ends of ligature 110 are fixed in fixed position respectively, make the fixed position at the end to end both ends of ligature 110 be based on the actual size of battery box 10, thereby guarantee ligature 110 can bear partly effort along the direction of presetting effectively, reduce the effort that first curb plate 10a and second curb plate 10b received, reduce the impaired probability of battery box 10.

Fig. 3 shows an exploded view of a battery module in an embodiment of the present application.

Referring to fig. 3, it can be understood that a plurality of battery cells 11 arranged in parallel are generally disposed in the battery case 10, and when the battery cells 11 expand, the expansion forces are accumulated in the arrangement direction of the battery cells 11, so that the expansion forces applied to two opposite sides of the battery case 10 along the arrangement direction of the battery cells 11 are greater.

Considering that the expansion force applied to the two opposite sides of the battery box 10 along the arrangement direction of the battery cells 11 is relatively large, in some embodiments of the present application, the preset direction is set to be parallel to the arrangement direction of the battery cells 11, and correspondingly, the first side plate 10a and the second side plate 10b are relatively arranged along the arrangement direction of the battery cells 11, so that when the plurality of battery cells 11 arranged in parallel expand, the binding member 110 transversely pulled between the first side plate 10a and the second side plate 10b can effectively bear part of the expansion force in the direction of the large expansion force.

In other embodiments, in order to more fully protect the battery box 10 from different directions, the preset direction may also include the arrangement direction of the battery cells 11 and a direction perpendicular to the arrangement direction of the battery cells 11, and correspondingly, the side plates include two side plates disposed oppositely along the preset direction and two side plates disposed oppositely along the direction perpendicular to the preset direction.

In some embodiments, the ligatures 110 comprise steel wire rope. The wire rope can bear a large force and is not easily broken, and simultaneously, the wire rope is convenient to wind, so that the binding member 110 can be tightly bound on the battery case 10 under the condition that the size of the battery case 10 has tolerance.

Referring to fig. 1 and 2, in some embodiments, the fixing member 100 includes a main body 101 and a fixing portion 102. For the fixing member 100 disposed on the first side plate 10a, the main body 101 is disposed on the first side plate 10a, the fixing portion 102 is disposed at one end of the main body 101 and protrudes from the first side plate 10a, and the fixing portion 102 is formed on the fixing portion. The main body 101 is a material itself forming the fixing member 100, and a partial section of the material is used as the fixing portion 102.

For the fixing member 100 disposed on the second side plate 10b, the main body 101 is disposed on the second side plate 10b, the fixing portion 102 is disposed at one end of the main body 101 and protrudes from the second side plate 10b, and the fixing portion is formed on the fixing portion 102. By arranging the main body 101 of the fixing member 100 on the side plate, the fixing portion 102 of the fixing member 100 protrudes out of the side plate where it is currently located, so that the binding member 110 is more conveniently wound around the fixing portion 102. The fixing member 100 may be a cylindrical structure formed by an extrusion process or other processes, and the fixing member 100 is disposed on the side plate to provide a fulcrum for winding and fixing the binding member 110.

FIG. 4 illustrates a perspective view of a side plate and a retaining member in an embodiment of the present application; figure 5 shows a side view of the side plate and the mount of figure 4.

Referring to fig. 3, 4 and 5, the fixing portion further includes a fixing hole 103 and an inlet/outlet 104, the fixing hole 103 penetrates through the fixing portion 102 along a vertical predetermined direction, the inlet/outlet 104 is communicated between the fixing hole 103 and an environment outside the fixing hole 103, and when the binding member 110 is wound at the fixing portion, the binding member is limited in the fixing hole 103 along a height direction of the battery case 10. The fixing hole 103 penetrating through the fixing part 102 in the vertical preset direction is formed in the fixing part 100, and the inlet and outlet 104 is communicated between the fixing hole 103 and the outside, so that the binding piece 110 transversely pulled between the first side plate 10a and the second side plate 10b in the preset direction can enter the fixing hole 103 through the inlet and outlet 104 and be wound on the fixing part 100, and operation is facilitated.

Specifically, the fixing member 100 includes one or more sets, each set of fixing member 100 includes two fixing portions respectively disposed on the first side plate 10a and the second side plate 10b, and in each set of fixing member 100, the entrances and exits 104 of the two fixing portions face in directions away from each other. The fixing pieces 100 are arranged on the first side plate 10a and the second side plate 10b, so that the head and the tail of the binding piece 110 can be respectively wound on the two fixing pieces 100, and the head and the tail of the binding piece 110 can be conveniently fixed with each other or the head and the tail of the binding piece 110 can be respectively fixed according to actual operation environment. And, the entrances and exits 104 of the two fixing pieces 100 face in directions away from each other, so that when the binding piece 110 generates a pulling force on the fixing piece 100 after the head and the tail ends of the binding piece 110 are wound on the respective corresponding fixing pieces 100, the reaction force of the fixing piece 100 on the first side plate 10a on the binding piece 110 at the end and the reaction force of the fixing piece 100 on the second side plate 10b on the binding piece 110 at the end are opposite in direction, thereby tightening the binding piece 110. As such, when the components in the battery case 10 expand, the binding member 110 is tightened to take a part of the expansion force, thereby reducing the possibility of damaging the battery case 10.

Referring to fig. 1 and 2, in some embodiments, the battery case 10 further includes a locker 120, and the locker 120 is provided at the binding 110 to fix a head end or a tail end of the binding 110. The head end and the tail end of the ligature 110 are fixed by the locker 120, thereby ensuring that the ligature 110 is stably wound at the fixing position. The locking device 120 may be a structural member having a receiving cavity with an adjustable space size, the binding member 110 may be inserted into the receiving cavity, and the locking device 120 may be fixed on the binding member 110 by adjusting the space size of the receiving cavity. Based on this, the ligature 110 is folded and one end of the ligature is overlapped with other sections of the ligature, then the overlapped part is arranged in the accommodating cavity of the locking device 120 in a penetrating mode, and then the size of the space of the accommodating cavity is adjusted, so that the ligature 110 can be fixed between the end and the section.

FIG. 6 is a perspective view of the latch of an embodiment of the present application; fig. 7 shows a side view of the latch of fig. 6.

Referring to fig. 6 and 7, further, the locking device 120 includes a locking sleeve 121 and a locking member 122. The locking sleeve 121 is provided with a through hole 123 and a locking hole 124, the through hole 123 penetrates through the locking sleeve 121 along a preset direction so as to allow the binding piece 110 to pass through, and the locking hole 124 penetrates through the locking sleeve 121 along a direction intersecting with the preset direction; the locking member 122 is inserted into the locking hole 124 and fixes the head end or the tail end of the ligature 110 in the through hole 123.

The locking sleeve 121 may be a hollow cylindrical structure, a through hole 123 is formed in the hollow portion, the through hole 123 serves as a receiving cavity for receiving the binding member 110, a threaded hole penetrating through the cylindrical wall is formed in the through hole 123, and a locking hole 124 is formed, and the material of the locking hole may be metal or plastic.

The locking member 122 can be a bolt matched with a threaded hole in the wall of the locking sleeve 121, and the size of the space of the accommodating cavity can be adjusted by screwing or unscrewing the bolt, so that the binding member 110 inserted into the accommodating cavity is pressed tightly or loosened.

The process of fixing the head end of the binding member 110 by using the locking sleeve 121 specifically includes the steps of firstly penetrating the head end of the binding member 110 through the through hole 123, winding the head end at a fixed position, then penetrating the head end through the through hole 123 again, forming the head end of the binding member 110 into an annular structure, then inserting the locking member 122 into the locking hole 124, fixing the head end of the binding member 110 in the through hole 123 by using the locking member 122, and keeping the annular structure formed by the head end of the binding member 110 stable, thereby fixing the head end of the binding member 110 at the locking position.

Specifically, the binding piece 110 may be wound once at the fixing position, so that the tightness of the binding piece 110 may be flexibly adjusted before the binding piece 110 is fixed. Or, the binding member 110 may be wound on the fixing position for a plurality of times, thereby ensuring that the fixing effect of the binding member 110 is more stable. In addition, a plurality of locking holes 124 may be formed along the length extension direction of the locking sleeve 121, and a plurality of locking members 122 may be correspondingly formed, so as to enhance the locking stability.

Referring to fig. 6, in some embodiments, the locking sleeve 121 extends lengthwise along a predetermined direction, and the locking hole 124 is opened on the locking sleeve 121 along a height direction of the battery case 10, wherein the locking member 122 is inserted into the locking hole 124, and a head end or a tail end of the binding member 110 is pressed between the locking member 122 and a hole wall of the through hole 123.

FIG. 8 shows a perspective view of a latch according to another embodiment of the present application; FIG. 9 shows a front view of the latch of FIG. 8; fig. 10 shows a top view of the latch of fig. 8.

Referring to fig. 8 to 10, in other embodiments, the locking sleeve 121 extends lengthwise in a direction perpendicular to the predetermined direction, the locking holes 124 are opened at two opposite ends of the locking sleeve 121 along the extending direction of the locking sleeve 121, wherein the locking members 122 include two locking holes 124 respectively penetrating through the two ends of the locking sleeve 121, and the head end or the tail end of the binding member 110 is clamped and fixed between the two locking members 122.

The locking sleeve 121 may also be a hollow cylindrical structure, and is different from the locking sleeve 121 in the above-mentioned embodiment in that the inner wall of the cylinder of the cylindrical structure is provided with threads as the locking hole 124, and the cylindrical structure is provided with through holes penetrating through the wall of the locking hole 124 at opposite sides, and the intersection of the through holes and the locking hole 124 forms an accommodating cavity for accommodating the binding 110, i.e., as the through hole 123.

Correspondingly, the locking member 122 is a bolt matching with the threaded hole of the locking sleeve 121, and the number of the bolts may be one or two. Specifically, when only one end of the locking sleeve 121 is open, the number of bolts is one; when the both ends of locking cover 121 all opened, the quantity of bolt is two, can reduce the inside space size of locking cover 121 through screwing up two bolts to will wear to locate the ligature 110 in the perforation 123 and compress tightly.

When the locking sleeve 121 is elongated in the predetermined direction and the locking hole 124 is opened in the locking sleeve 121 in the height direction of the battery case 10, the locking device 120 occupies a small space in the direction perpendicular to the predetermined direction. When the locking sleeve 121 is elongated in a direction perpendicular to the predetermined direction, and the locking holes 124 are opened at opposite ends of the locking sleeve 121 in the extending direction of the locking sleeve 121, the space occupied by the locker 120 in the height direction of the battery case 10 and in the predetermined direction is small. Different locking means 120 may be selected according to the amount of space actually available, thereby minimizing the space occupied by the locking means 120 while securing the securing effect of the ligature 110.

When the head and the tail of the ligature 110 are fixed to each other, the head and the tail of the ligature 110 can be fixed by the same locker 120; further, in order to improve stability, the number of the locker 120 may be increased, such as two, three, four or more, wherein each locker 120 serves to fix both the head end and the tail end of the ligature 110. When the head end and the tail end of the binding 110 are fixed respectively, the head end and the tail end may be fixed by one locker 120 each, or may be fixed by a plurality of lockers 120 each.

FIG. 11 is a schematic diagram showing the structure of a battery case according to another embodiment of the present application; fig. 12 shows a partial enlarged view at B in fig. 11.

Referring to fig. 11 and 12, in some embodiments, the head end or the tail end of the ligature 110 is locked and fixed by at least two lockers 120, for example, the head end and the tail end of the ligature 110 are fixed by three lockers 120, so as to ensure stable fixing effect of the head end and the tail end.

Referring to fig. 3, in a specific embodiment, the battery box 10 is configured to accommodate a plurality of battery cells 11 arranged in parallel, the battery box 10 includes side plates, a fixing member 100, a bundling member 110 and a locking device 120, the side plates include a first side plate 10a and a second side plate 10b that are opposite to each other and are arranged at an interval along an arrangement direction of the battery cells 11, the fixing member 100 is respectively disposed on the first side plate 10a and the second side plate 10b, the fixing member 100 on the first side plate 10a protrudes out of the first side plate 10a, the second fixing member 100 protrudes out of the second side plate 10b, the bundling member 110 is transversely pulled between the first side plate 10a and the second side plate 10b along the arrangement direction of the battery cells 11, and a head end and a tail end of the bundling member 110 are respectively wound on the fixing member 100 of the first side plate 10a and the fixing member 100 of the second side plate 10b, the locking device 120 is disposed on the bundling member 110, and the head end and the tail end of the bundling member 110 are respectively fixed on the head end of the fixing member 100. The binding piece 110 is transversely pulled between the first side plate 10a and the second side plate 10b along the arrangement direction of the single batteries 11, the head end and the tail end of the binding piece 110 are respectively wound on the fixing piece 100 of the first side plate 10a and the fixing piece 100 of the second side plate 10b, and then the head end and the tail end of the binding piece 110 are fixed through the locking device 120, so that the fixing position of the binding piece 110 is matched with the actual distance between the first side plate 10a and the second side plate 10b, and the binding piece 110 is guaranteed to effectively bear the expansion force generated by a part of the single batteries 11.

Based on the same purpose, the present application also provides a battery module 1. Referring to fig. 3, in an embodiment of the present application, the battery module 1 includes the battery case 10 in the above embodiment.

Based on the same purpose, the present application also provides a battery, which includes the battery module in the above embodiment.

The battery disclosed in the embodiment of the present application can be used in electric devices such as vehicles, ships or aircrafts, but not limited thereto. The power supply system who possesses this electric installation of battery composition that this application discloses can be used, like this, is favorable to alleviating the problem that the battery box that battery monomer inflation leads to damages, promotes stability and the battery life-span of battery performance.

In the battery, a plurality of battery cells can be arranged, and the plurality of battery cells can be connected in series or in parallel or in series-parallel, wherein the series-parallel refers to that the plurality of battery cells are connected in series or in parallel. The plurality of battery monomers can be directly connected in series or in parallel or in series-parallel, and the whole formed by the plurality of battery monomers is accommodated in the battery box body; of course, the battery may also be a battery module formed by connecting a plurality of battery cells in series, in parallel, or in series-parallel, and a plurality of battery modules are connected in series, in parallel, or in series-parallel to form a whole and accommodated in the battery box. The battery may further include other structures, for example, the battery may further include a bus member for achieving electrical connection between the plurality of battery cells.

Wherein, each battery cell can be a secondary battery or a primary battery; but is not limited to, a lithium sulfur battery, a sodium ion battery, or a magnesium ion battery. The battery cell can be in a cylinder, a flat body, a cuboid or other shapes.

Based on the same purpose, the application also provides an electric device, and the electric device comprises the battery in the embodiment. The powered device may be, but is not limited to, a cell phone, tablet, laptop, electronic toy, electric tool, battery car, electric car, ship, spacecraft, and the like. The electric toy may include a stationary or mobile electric toy, such as a game machine, an electric car toy, an electric ship toy, an electric airplane toy, and the like, and the spacecraft may include an airplane, a rocket, a space shuttle, a spacecraft, and the like.

When the electric device is a vehicle, the vehicle can be a fuel automobile, a gas automobile or a new energy automobile, and the new energy automobile can be a pure electric automobile, a hybrid electric automobile or a range-extended automobile and the like. The interior of the vehicle is provided with a battery, which may be provided at the bottom or at the head or tail of the vehicle. The battery may be used for power supply of the vehicle, for example, the battery may serve as an operation power source of the vehicle. The vehicle may also include a controller and a motor, the controller being used to control the battery to power the motor, for example, for start-up, navigation, and operational power requirements while traveling of the vehicle.

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

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (11)

1. A battery case (10), comprising:

the side plate comprises at least two side plates, wherein a first side plate (10 a) and a second side plate (10 b) which are arranged at intervals along a preset direction and are opposite to each other are arranged in all the side plates;

the fixing piece (100) is arranged on the first side plate (10 a) and/or the second side plate (10 b) and is provided with a fixing position; and

the binding piece (110) is transversely pulled between the first side plate (10 a) and the second side plate (10 b) along the preset direction and is wound at the fixing position; and the head and the tail of the binding piece (110) are fixed with each other, or the head and the tail of the binding piece (110) are respectively fixed at the fixing positions.

2. The battery case (10) according to claim 1, wherein the fixing member (100) comprises:

a body (101) provided on the first side plate (10 a) and/or the second side plate (10 b); and

the fixing part (102) is arranged at one end of the main body (101) and protrudes out of the first side plate (10 a) and/or the second side plate (10 b) where the fixing part is located;

wherein the fixing site is formed on the fixing portion (102).

3. The battery box (10) according to claim 2, wherein the fixing position comprises a fixing hole (103) and an access (104), the fixing hole (103) penetrates through the fixing portion (102) along the vertical direction, and the access (104) is communicated between the fixing hole (103) and the environment outside the fixing hole (103);

when the binding piece (110) is wound on the fixing position, the binding piece is limited in the fixing hole (103) along the height direction of the battery box body (10).

4. The battery box (10) according to claim 3, wherein the fixing member (100) comprises one or more sets, each set of the fixing member (100) comprises two fixing portions respectively disposed on the first side plate (10 a) and the second side plate (10 b), and in each set of the fixing member (100), the entrances and exits (104) of the two fixing portions face in directions away from each other.

5. The battery case (10) according to any one of claims 1 to 4, wherein the battery case (10) further comprises a locker (120), the locker (120) being provided to the binding member (110) for fixing a head end or a tail end of the binding member (110).

6. The battery case (10) of claim 5, wherein the latch (120) comprises:

the locking sleeve (121) is provided with a through hole (123) and a locking hole; the through hole (123) penetrates through the locking sleeve (121) along the preset direction so as to allow the binding piece (110) to pass through; the locking hole penetrates through the locking sleeve (121) along the direction intersecting with the preset direction; and

and the locking piece (122) is arranged in the locking hole in a penetrating way and fixes the head end or the tail end of the binding piece (110) in the through hole (123).

7. The battery case (10) according to claim 6, wherein the locking sleeve (121) extends lengthwise along the preset direction, and the locking hole is formed in the locking sleeve (121) along the height direction of the battery case (10);

the locking piece (122) is arranged in the locking hole in a penetrating mode, and the head end or the tail end of the binding piece (110) is pressed between the locking piece (122) and the hole wall of the through hole (123).

8. The battery case (10) according to claim 6, wherein the locking sleeve (121) extends lengthwise in a direction perpendicular to the preset direction, and the locking hole is opened at opposite ends of the locking sleeve (121) in the extending direction of the locking sleeve (121);

the locking pieces (122) comprise two locking holes which are respectively arranged at two ends of the locking sleeve (121) in a penetrating mode, and the head end or the tail end of the binding piece (110) is clamped and fixed between the two locking pieces (122).

9. The battery case (10) according to claim 5, wherein the head end or the tail end of the binding member (110) is locked and fixed by at least two locking devices (120), respectively.

10. A battery, characterized by comprising a battery case (10) according to any one of claims 1 to 9.

11. An electric device comprising the battery of claim 10.

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