Space ring, battery device and electric equipment

Abstract

The space ring comprises a first space ring and a second space ring, the first space ring comprises a first main body, one end of the first main body in the length direction is provided with a first connecting part, and the other end of the first main body is provided with a second connecting part; the second space ring comprises a second main body, one end of the second main body in the length direction is provided with a third connecting part, and the other end is provided with a fourth connecting part; the first connecting part is rotationally connected with the third connecting part, and the second connecting part is detachably connected with the fourth connecting part. A first space ring and a second space ring are arranged, a first main body of the first space ring is provided with a first connecting part and a second connecting part, a second main body of the second space ring is provided with a third connecting part and a fourth connecting part, and the first connecting part is rotationally connected with the third connecting part; and then the second connecting part and the fourth connecting part are connected to complete assembling, grabbing is convenient, and the assembling procedure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a spacer, a battery device and electrical equipment. Background Art

[0002] With the increasing popularity of new energy vehicles, the requirements for the use of power batteries in new energy vehicles are becoming higher and higher. The battery consists of a cell and tabs at both ends, but the tabs are thin and easily deformed. The current solution is to set a spacer on the tab to fix the tab.

[0003] The battery spacers in the prior art are either one-piece structures, which are inserted along the direction of the pole ear during assembly, making alignment difficult; or they are split structures, which need to be grabbed twice during assembly, with the upper and lower partitions placed at the pole ear positions and then clamped up and down to clamp the pole ear, making assembly difficult and complicated. Utility Model Content

[0004] The utility model aims to provide a spacer, a battery device and an electric device, which can solve the problems of great difficulty in assembling the spacer and the tab and complicated movements.

[0005] In order to achieve the purpose of the utility model, the utility model provides the following technical solutions:

[0006] In the first aspect, the utility model provides a spacer, comprising a first spacer and a second spacer, wherein the first spacer comprises a first main body, a first connecting portion is provided at one end in the length direction of the first main body, and a second connecting portion is provided at the other end; the second spacer comprises a second main body, a third connecting portion is provided at one end in the length direction of the second main body, and a fourth connecting portion is provided at the other end; the first connecting portion is rotatably connected to the third connecting portion, and the second connecting portion is detachably connected to the fourth connecting portion.

[0007] In one embodiment, the first main body includes a first supporting portion, a first pressure plate, and a second supporting portion connected in sequence in the length direction of the first main body, the first connecting portion is arranged on the first supporting portion, and the second connecting portion is arranged on the second supporting portion; the second main body includes a third supporting portion, a second pressure plate, and a fourth supporting portion connected in sequence in the length direction, the third connecting portion is arranged on the third supporting portion, and the fourth connecting portion is arranged on the fourth supporting portion; when the second connecting portion is connected to the fourth connecting portion, the first supporting portion is in contact with the third supporting portion, the second supporting portion is in contact with the fourth supporting portion, and there is a gap between the first pressure plate and the second pressure plate.

[0008] In one embodiment, the first connecting portion protrudes from the surface of the first supporting portion in the width direction, and the first connecting portion is provided with a first fixing groove along the width direction of the first supporting portion, and the first fixing groove penetrates the first connecting portion along the thickness direction of the first supporting portion; the third supporting portion is provided with a first receiving groove, and the third connecting portion includes a first protrusion, and the first protrusion is connected to the inner wall of the first receiving groove in the thickness direction of the third supporting portion, and the first protrusion is cooperatively connected with the first fixing groove.

[0009] In one embodiment, the first protrusion is cylindrical or spherical in shape, and the first fixing groove has a shape corresponding to the first protrusion.

[0010] In one embodiment, the third supporting portion includes a first inclined surface facing the first supporting portion and a first end surface facing away from the second body, and the first inclined surface connects the first end surface and a surface of the third supporting portion facing the first supporting portion.

[0011] In one embodiment, the fourth connecting portion protrudes from the surface of the fourth supporting portion in the width direction, and the fourth connecting portion is provided with a second fixing groove along the width direction of the fourth supporting portion, and the second fixing groove penetrates the fourth connecting portion along the thickness direction of the fourth supporting portion; the second supporting portion is provided with a second receiving groove, and the second connecting portion includes a second protrusion, and the second protrusion is connected to the inner wall of the second receiving groove in the thickness direction of the second supporting portion, and the second protrusion is cooperatively connected to the second fixing groove.

[0012] In one embodiment, the first pressing plate and / or the second pressing plate is provided with a liquid injection hole.

[0013] In one embodiment, the second connection portion is rotatably connected to the fourth connection portion, and the first connection portion is detachably connected to the third connection portion.

[0014] In one embodiment, the first body, the first connecting portion, the second body and the third connecting portion are an integrated structure.

[0015] In a second aspect, the utility model further provides a battery device, comprising a battery cell, a pole lug and a spacer as described in any one of the various embodiments of the first aspect, wherein the pole lug is provided at at least one end of the battery cell, and the pole lug is inserted between the first spacer and the second spacer.

[0016] In a third aspect, the utility model further provides an electrical equipment, comprising an electrical device and a battery device as described in the second aspect, wherein the battery device supplies power to the electrical device.

[0017] By setting the first spacer and the second spacer, the first body of the first spacer is provided with a first connecting part and a second connecting part, the second body of the second spacer is provided with a third connecting part and a fourth connecting part, the first connecting part is rotatably connected to the third connecting part, and during assembly, the second connecting part and the fourth connecting part are first separated to insert the pole ear, and then the second connecting part and the fourth connecting part are connected to complete the assembly, which is convenient to grasp and the assembly process is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a front view of a spacer ring of an embodiment;

[0020] Figure 2 is a front view of a first spacer ring of an embodiment;

[0021] Figure 3 is a top view of a first spacer ring of an embodiment;

[0022] Figure 4 is a front view of a second spacer ring of an embodiment;

[0023] Figure 5 is a perspective view of a first spacer ring according to an embodiment.

[0024] Description of reference numerals:

[0025] 100-spacer;

[0026] 10-first spacer, 11-first main body, 111-first supporting portion, 112-first pressing plate, 113-second supporting portion, 114-second receiving groove, 115-second protrusion, 116-second inclined surface, 12-first connecting portion, 121-first fixing groove, 13-second connecting portion, 14-first reinforcing plate, 15-second reinforcing plate;

[0027] 20 - second spacer, 21 - second main body, 211 - third support portion, 212 - second pressure plate, 213 - fourth support portion, 214 - first inclined surface, 215 - first end surface, 22 - fourth connecting portion, 221 - second fixing groove;

[0028] 30-Filling hole. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0031] Unless otherwise defined, all technical and scientific terms used in this utility model have the same meaning as those commonly understood by technicians in the technical field of this utility model. The terms used in the specification of this utility model are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this utility model includes any and all combinations of one or more related listed items.

[0032] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0033] The embodiment of the utility model provides an electric device, including an electric device and a battery device in the embodiment of the utility model, and the battery device supplies power to the electric device.

[0034] Optionally, the electrical device may be an electric vehicle, a hybrid vehicle, a base station, a household electrical load, etc.

[0035] Optionally, the battery device may be a power battery device, an energy storage battery device, etc., without specific limitation.

[0036] The electrical equipment adopts the battery device in the embodiment of the utility model, which can reduce the difficulty of assembling the battery device and shorten the production cycle.

[0037] The embodiment of the utility model further provides a battery device, comprising a battery cell, a tab and a spacer in the embodiment of the utility model, wherein the tab is arranged at at least one end of the battery cell, and the tab passes through the spacer.

[0038] Optionally, the battery cell can be a square laminated battery cell, a wound battery cell, etc., without limitation.

[0039] Optionally, the electrode tab includes a positive electrode tab and a negative electrode tab, and the positive electrode tab and the negative electrode tab can be arranged on the same side of the battery cell, or can be respectively arranged on two different sides of the battery cell, without specific limitation.

[0040] Optionally, the battery device further comprises a shell, the shell comprising a bottom plate and a plurality of side plates, the side plates are connected to the bottom plate and enclosed to form a receiving cavity. The receiving cavity is open at one end opposite to the bottom plate, and the battery cell is received in the receiving cavity.

[0041] The shell is a material with high structural strength, specifically metal materials, high-strength plastics, ceramics, etc. Metal materials such as aluminum, aluminum alloys, magnesium alloys, iron and iron alloys, etc. The shell can be an integrated structure, that is, the bottom plate and the side plates are an integrated structure made by an integrated molding process, and the integrated molding process can be specifically stamping, casting, etc., without limitation. The shell can also be a split structure, and the side plates and the bottom plate can be connected and fixed by welding, bonding, clamping, screwing, etc. The wall thickness of the shell can be roughly uniform everywhere, that is, the thickness of the side plates can be roughly uniform, and the thickness of the bottom plate and the side plates can also be roughly the same.

[0042] Optionally, the battery device further comprises a cover plate, which is connected to the opening of the shell to close the accommodating cavity. The connection between the cover plate and the shell can be welding, bonding, clamping, screwing, etc., without limitation. The shape of the cover plate can be substantially the same as that of the bottom plate.

[0043] The battery device in the embodiment of the utility model can reduce the difficulty of assembling the battery device and shorten the production cycle by adopting the spacer in the embodiment of the utility model.

[0044] The battery device in the embodiment of the utility model is described in detail below.

[0045] Please refer to Figure 1 An embodiment of the utility model provides a spacer 100 , including a first spacer 10 and a second spacer 20 .

[0046] Define the direction first. Please refer to Figure 1 , X is the length direction, Y is the width direction, and Z is the thickness direction.

[0047] Optional, such as Figure 2 , Figure 3 and Figure 4 As shown, the first spacer 10 includes a first body 11, one end of the first body 11 in the length direction X is provided with a first connection portion 12, and the other end is provided with a second connection portion 13. The second spacer 20 includes a second body 21, one end of the second body 21 in the length direction X is provided with a third connection portion (not shown in the figure), and the other end is provided with a fourth connection portion 22.

[0048] Optionally, the first body 11, the first connection part 12, and the second connection part 13 may be an integrated structure, that is, the first body 11, the first connection part 12, and the second connection part 13 are an integrated structure made by an integrated molding process, and the integrated molding process may be stamping, injection molding, etc., without limitation. The first body 11, the first connection part 12, and the second connection part 13 may also be a split structure, and the first body 11, the first connection part 12, and the second connection part 13 may be connected and fixed by welding, bonding, clamping, screwing, etc.

[0049] Optionally, the connection method of the second body 21, the third connection part and the fourth connection part 22 is similar to that of the first body 11, the first connection part 12 and the second connection part 13, which can be referred to and will not be repeated here.

[0050] Optionally, the material of the spacer 100 can be polypropylene (PP), polyethylene (PE), butyl rubber, fluororubber, etc., without specific limitation.

[0051] Optionally, when the spacer 100 is assembled, the first spacer 10 and the second spacer 20 are arranged opposite to each other in the width direction Y, at which time the first connection portion 12 is opposite to the third connection portion, and the second connection portion 13 is opposite to the fourth connection portion 22. When the second connection portion 13 is connected to the fourth connection portion 22, the first spacer 10 and the second spacer 20 are buckled into the spacer 100 for fixing the tabs of the battery device.

[0052] Optionally, the first connection part 12 is rotatably connected to the third connection part, and the second connection part 13 is detachably connected to the fourth connection part 22; or, the second connection part 13 is rotatably connected to the fourth connection part 22, and the first connection part 12 is detachably connected to the third connection part. All of the above methods are acceptable, as long as one end of the first body 11 and one end of the second body 21 are rotatably connected, and the other ends of the two can be separated or connected, without specific limitation.

[0053] Optionally, the structures of the first connection part 12 and the fourth connection part 22 are different, and the structures of the second connection part 13 and the third connection part are different, that is, the structures of the ends of the first spacer 10 and the second spacer 20 used for rotational connection and the movable ends used for opening and closing are different; or, the structures of the first connection part 12 and the fourth connection part 22 are the same, and the structures of the second connection part 13 and the third connection part are the same, that is, the structures of the first spacer 10 and the second spacer 20 are the same, and when the spacer 100 is buckled, the first spacer 10 and the second spacer 20 are 180° symmetrical relative to the center of the spacer 100, and when in use, one end acts as a rotational connection end and the other end acts as a movable end, without specific limitation.

[0054] By setting the second connection part 13 and the fourth connection part 22 to be rotatably connected, the first connection part 12 and the third connection part are detachably connected, and the spacer 100 is rotatably connected on either side of the length direction X and detachably connected on the other side, there is no need to distinguish the processing direction, which is convenient for processing.

[0055] Optionally, the first body 11, the first connecting portion 12, the second body 21 and the third connecting portion are also an integrated structure.

[0056] Optionally, the first main body 11, the first connecting portion 12 and the second connecting portion 13 are an integrated structure manufactured by an integrated molding process, and the integrated molding process may specifically be stamping, injection molding, etc., without limitation.

[0057] By arranging the first body 11, the first connecting portion 12, the second body 21 and the third connecting portion as an integrated structure, the first spacer 10 and the second spacer 20 are connected via the first connecting portion 12 and the third connecting portion, which is convenient for taking and placing.

[0058] The existing spacer 100 has two structures: one is an integrated structure, and the spacer 100 needs to be inserted along the direction of the positive or negative pole ear of the battery device when assembling the spacer 100 with the battery cell; the other is a split buckle structure, and when the spacer 100 is assembled with the battery cell, the two parts of the spacer 100 need to be placed on the upper and lower sides of the pole ear respectively, and then buckled to clamp the pole ear. When assembling these two structures, there are problems such as difficulty in grabbing the spacer 100, great difficulty in assembly, and complex assembly actions.

[0059] The spacer 100 in the embodiment of the utility model is provided with a first spacer 10 and a second spacer 20. The first main body 11 of the first spacer 10 is provided with a first connecting part 12 and a second connecting part 13. The second main body 21 of the second spacer 20 is provided with a third connecting part and a fourth connecting part 22. The first connecting part 12 is rotatably connected with the third connecting part. When assembling, the second connecting part 13 and the fourth connecting part 22 are first separated to insert the pole ear, and then the second connecting part 13 and the fourth connecting part 22 are connected to complete the assembly. The grabbing is convenient and the assembly process is simple.

[0060] Optional, such as Figure 2 and Figure 4 As shown, the first body 11 includes a first supporting portion 111, a first pressing plate 112, and a second supporting portion 113 sequentially connected in the length direction X of the first body 11, the first connecting portion 12 is arranged on the first supporting portion 111, and the second connecting portion 13 is arranged on the second supporting portion 113. The second body 21 includes a third supporting portion 211, a second pressing plate 212, and a fourth supporting portion 213 sequentially connected in the length direction X of the second body 21, the third connecting portion is arranged on the third supporting portion 211, and the fourth connecting portion 22 is arranged on the fourth supporting portion 213.

[0061] Optionally, the first support portion 111, the first pressing plate 112 and the second support portion 113 may be an integrated structure, that is, the first support portion 111, the first pressing plate 112 and the second support portion 113 are an integrated structure made by an integrated molding process, and the integrated molding process may be stamping, casting, etc., without limitation. The first support portion 111, the first pressing plate 112 and the second support portion 113 may also be a split structure, and the first support portion 111, the first pressing plate 112 and the second support portion 113 may be connected and fixed by welding, bonding, clamping, screwing, etc.

[0062] Optionally, the connection method of the third support portion 211, the second pressing plate 212 and the fourth support portion 213 is similar to that of the first support portion 111, the first pressing plate 112 and the second support portion 113, which can be referred to and will not be repeated here.

[0063] Optionally, the first support portion 111 and the first connection portion 12 may be an integrated structure or a split structure, and the first support portion 111 and the first connection portion 12 are connected by welding, bonding, clamping, screwing, etc., without specific limitation.

[0064] Similarly, the connection methods between the second support portion 113 and the second connection portion 13, the third support portion 211 and the third connection portion, and the fourth support portion 213 and the fourth connection portion 22 are similar to those between the first support portion 111 and the first connection portion 12, and are only for reference and will not be repeated here.

[0065] Optionally, when the second connection portion 13 is connected to the fourth connection portion 22 , the first support portion 111 is in contact with the third support portion 211 , the second support portion 113 is in contact with the fourth support portion 213 , and there is a gap between the first pressing plate 112 and the second pressing plate 212 .

[0066] Optionally, when the spacer 100 is assembled, the spacer 100 is sleeved on the battery cell along the thickness direction Z, the first support portion 111 is tightly attached to the third support portion 211, and the second support portion 113 is tightly attached to the fourth support portion 213, so as to fix the position of the spacer 100 and the battery cell. At this time, there is a gap between the first pressure plate 112 and the second pressure plate 212, and the pole ear is accommodated in the gap to fix the position of the pole ear. The thickness of the pole ear is relatively thin, and the spacer 100 also plays a role in protecting the pole ear to prevent the pole ear from deformation.

[0067] When the second connection portion 13 of the spacer 100 is connected to the fourth connection portion 22 , the second support portion 113 is in contact with the fourth support portion 213 , and a gap is provided between the first pressing plate 112 and the second pressing plate 212 , so that the spacer 100 can fix and protect the tab.

[0068] Optional, such as Figure 2As shown, the first connection portion 12 protrudes from the surface of the first support portion 111 in the width direction Y, and the first connection portion 12 is provided with a first fixing groove 121 along the width direction Y of the first support portion 111, and the first fixing groove 121 penetrates the first connection portion 12 along the thickness direction Z of the first support portion 111. The third support portion 211 is provided with a first receiving groove (not shown in the figure), and the third connection portion includes a first protrusion (not shown in the figure), the first protrusion is connected to the inner wall of the first receiving groove in the thickness direction Z of the third support portion 211, and the first protrusion is matched and connected with the first fixing groove 121.

[0069] Optionally, the shape of the first connection portion 12 may be a block, a trapezoidal boss, a prism, etc., and the cross-sectional shape of the inner wall surface of the first fixing groove 121 may be a circle, a triangle, a polygon, etc., without specific limitation.

[0070] Optionally, the first receiving groove is opened inside the third connecting portion, and the first protrusion is received in the first fixing groove 121 .

[0071] Optionally, the shape of the first protrusion is either a columnar shape or a spherical shape, and the shape of the first fixing groove 121 corresponds to the first protrusion.

[0072] Optionally, when the first protrusion is columnar, it may be cylindrical, or prism-shaped, such as a triangular prism, a hexagonal prism, etc., or an irregular columnar shape, without specific limitation.

[0073] Optionally, the number of the first protrusions may be one or two, without limitation. For example, the first protrusion is a prism, one end of the prism is connected to one side of the first receiving groove in the thickness direction Z, and the other end is connected to the other side of the first receiving groove in the thickness direction Z. The prism is cooperatively connected to the first fixing groove 121 and can rotate relative to the inner wall of the first fixing groove 121.

[0074] Alternatively, there are two first protrusions, both of which are hemispherical, and two opposite side surfaces of the first receiving groove in the thickness direction Z are respectively connected with a first protrusion, and the first protrusion is matched and connected with the first fixing groove 121 .

[0075] By setting the first connecting part 12 with a first fixing groove 121, the first receiving groove formed in the third supporting part 211 is connected with a first protrusion, and the first protrusion is matched and connected with the first fixing groove 121, the first spacer 10 can be rotated relative to the second spacer 20, so that the first connecting part 12 and the second connecting part 13 can be connected or separated during the assembly process, which is convenient for the spacer 100 to be fitted with the pole ear.

[0076] Optional, such as Figure 4As shown, the third support portion 211 includes a first inclined surface 214 facing the first support portion 111 and a first end surface 215 facing away from the second body 21 , and the first inclined surface 214 connects the first end surface 215 and the surface of the third support portion 211 facing the first support portion 111 .

[0077] Optionally, the first inclined surface 214 may be a plane or a curved surface, and there is no specific limitation thereto.

[0078] Optional, such as Figure 4 As shown, the first inclined surface 214 can also connect the surface of the third support portion 211 facing the first support portion 111 and the surface of the third support portion 211 opposite to the first support portion 111. At this time, the first end surface 215 is the edge connecting the first inclined surface 214 and the surface of the third support portion 211 opposite to the first support portion 111.

[0079] Optional, such as Figure 2 As shown, the second support portion 113 includes a second inclined surface 116 facing the fourth support portion 213 and a second end surface facing away from the first body 11 , and the second inclined surface 116 connects the second end surface and the surface of the second support portion 113 facing the fourth support portion 213 .

[0080] By setting the third support part 211 to include a first inclined surface 214 facing the first support part 111 and a first end surface 215 facing away from the second main body 21, the first inclined surface 214 connects the first end surface 215 and the surface of the third support part 211 facing the first support part 111, thereby facilitating the relative rotation of the first spacer ring 10 and the second spacer ring 20 and avoiding interference between the first support part 111 and the third support part 211.

[0081] Optional, such as Figure 4 As shown, the fourth connection portion 22 protrudes from the surface of the fourth support portion 213 in the width direction Y, and the fourth connection portion 22 is provided with a second fixing groove 221 along the width direction Y of the fourth support portion 213, and the second fixing groove 221 penetrates the fourth connection portion 22 along the thickness direction Z of the fourth support portion 213. The second support portion 113 is provided with a second receiving groove 114, and the second connection portion 13 includes a second protrusion 115, and the second protrusion 115 is connected to the inner wall of the second receiving groove 114 in the thickness direction Z of the second support portion 113, and the second protrusion 115 is matched and connected with the second fixing groove 221.

[0082] Optionally, the shape of the fourth connection portion 22 may be a block, a trapezoidal boss, a prism, etc., and the cross-sectional shape of the inner wall surface of the second fixing groove 221 may be circular, triangular, polygonal, etc., without specific limitation.

[0083] Optionally, the second receiving groove 114 is opened inside the second connecting portion, and the second protrusion 115 is received in the second fixing groove 221 .

[0084] Optionally, the shape of the second protrusion 115 can be cylindrical, prism-shaped, hemispherical, etc., which is similar to the first protrusion mentioned above and can be referred to without further explanation.

[0085] Optionally, the number of the second protrusions 115 may be one or two, without limitation. For example, the second protrusion 115 is a prism, one end of the prism is respectively connected to one side of the second receiving groove 114 in the thickness direction Z, and the other end is connected to the other side of the second receiving groove 114 opposite to the thickness direction Z. The prism is matched with the first fixing groove 121 and can be clamped, etc., without limitation.

[0086] Alternatively, there are two second protrusions 115 , both of which are hemispherical, and two opposite side surfaces of the second receiving groove 114 in the thickness direction Z are respectively connected with a second protrusion 115 , and the second protrusion 115 is matched and connected with the second fixing groove 221 .

[0087] The fourth connecting portion 22 is provided with a second fixing groove 221, and the second receiving groove 114 provided in the second supporting portion 113 includes a second protrusion 115 connected to the inner wall of the second receiving groove 114 in the thickness direction Z of the second supporting portion 113. The second protrusion 115 is matched and connected with the second fixing groove 221, and can be separated or buckled during the assembly of the spacer 100 to separate or merge the first spacer 10 and the second spacer 20. The structure is simple and the assembly is convenient.

[0088] Optionally, the first pressing plate 112 and / or the second pressing plate 212 is provided with a liquid injection hole 30 .

[0089] Optionally, the injection hole 30 may be circular, rectangular, polygonal, etc., without limitation.

[0090] Optional, such as Figure 2 As shown, the first pressing plate 112 is provided with a liquid injection hole 30, and the second pressing plate 212 is not provided with a liquid injection hole 30; or, the second pressing plate 212 is provided with a liquid injection hole 30, and the first pressing plate 112 is not provided with a liquid injection hole 30; or, both the first pressing plate 112 and the second pressing plate 212 are provided with a liquid injection hole 30. All of the above methods are possible and are not specifically limited.

[0091] The first pressing plate 112 and / or the second pressing plate 212 are provided with a liquid injection hole 30, so as to facilitate the injection of electrolyte after the spacer 100 is assembled.

[0092] Optional, such as Figure 5 As shown, the first body 11 further includes a first reinforcing plate 14 and a second reinforcing plate 15 which are arranged opposite to each other in the width direction Y of the first body 11 .

[0093] Optionally, the first reinforcing plate 14 is connected to one side edge of the first pressing plate 112 in the width direction Y, and one end of the first reinforcing plate 14 in the length direction X is connected to the first supporting portion 111 , and the other end is connected to the second supporting portion 113 .

[0094] Optionally, the second reinforcing plate 15 is connected to the other side edge of the first pressing plate 112 in the width direction Y, and one end of the second reinforcing plate 15 in the length direction X is connected to the first supporting portion 111 , and the other end is connected to the second supporting portion 113 .

[0095] Optionally, the first reinforcing plate 14, the first pressure plate 112 and the second reinforcing plate 15 can be an integrated structure or a split structure, and the first reinforcing plate 14, the first pressure plate 112 and the second reinforcing plate 15 are connected by bonding, clamping, screwing, etc. without limitation.

[0096] Optionally, the second main body 21 also includes a third reinforcing plate and a fourth reinforcing plate relatively arranged in the width direction Y of the second main body 21. The connection method between the third reinforcing plate and the fourth reinforcing plate and the second pressure plate 212 is similar to the connection method between the aforementioned first reinforcing plate 14 and the second reinforcing plate 15 and the first pressure plate 112, which can be used for reference only and will not be repeated here.

[0097] By providing the first reinforcing plate 14 and the second reinforcing plate 15 , which are connected to the first pressing plate 112 , the structural strength of the first body 11 can be increased and the first body 11 is not easily deformed.

[0098] An assembly process of the spacer 100 is described below.

[0099] The spacer 100 includes a first spacer 10 and a second spacer 20. The first body 11 of the first spacer 10 is provided with a first connection part 12 and a second connection part 13. The second body 21 of the second spacer 20 is provided with a third connection part and a fourth connection part 22. The first connection part 12 is rotatably connected with the third connection part. When the material is received, the second connection part 13 and the fourth connection part 22 are in a buckled state. The second connection part 13 and the fourth connection part 22 are opened after being clamped manually or by a mechanical arm, and the tab of the battery device is inserted between the first body 11 and the second body 21, and then the second connection part 13 and the fourth connection part 22 are buckled to complete the assembly, and the assembly efficiency is high.

[0100] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0101] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A spacer, characterized in that: include: A first spacer, comprising a first body, wherein a first connecting portion is disposed at one end in a length direction of the first body, and a second connecting portion is disposed at the other end thereof; A second spacer, comprising a second body, wherein a third connecting portion is disposed at one end in the length direction of the second body, and a fourth connecting portion is disposed at the other end; The first connection part is rotatably connected to the third connection part, and the second connection part is detachably connected to the fourth connection part.

2. The spacer according to claim 1, characterized in that: The first body includes a first supporting portion, a first pressing plate, and a second supporting portion sequentially connected in the length direction of the first body, the first connecting portion is arranged on the first supporting portion, and the second connecting portion is arranged on the second supporting portion; the second body includes a third supporting portion, a second pressing plate, and a fourth supporting portion sequentially connected in the length direction of the second body, the third connecting portion is arranged on the third supporting portion, and the fourth connecting portion is arranged on the fourth supporting portion; When the second connection portion is connected to the fourth connection portion, the first support portion is in contact with the third support portion, the second support portion is in contact with the fourth support portion, and a gap is provided between the first pressing plate and the second pressing plate.

3. The spacer according to claim 2, characterized in that: The first connecting portion protrudes from the surface of the first supporting portion in the width direction, and the first connecting portion is provided with a first fixing groove along the width direction of the first supporting portion, and the first fixing groove penetrates the first connecting portion along the thickness direction of the first supporting portion; the third supporting portion is provided with a first receiving groove, and the third connecting portion includes a first protrusion, and the first protrusion is connected to the inner wall of the first receiving groove in the thickness direction of the third supporting portion, and the first protrusion is cooperatively connected with the first fixing groove.

4. The spacer according to claim 3, characterized in that: The first protrusion is in a columnar or spherical shape, and the first fixing groove has a shape corresponding to the first protrusion.

5. The spacer according to claim 2, characterized in that: The third supporting portion includes a first inclined surface facing the first supporting portion and a first end surface facing away from the second body, and the first inclined surface connects the first end surface and a surface of the third supporting portion facing the first supporting portion.

6. The spacer according to claim 2, characterized in that: The fourth connecting portion protrudes from the surface of the fourth supporting portion in the width direction, and the fourth connecting portion is provided with a second fixing groove along the width direction of the fourth supporting portion, and the second fixing groove penetrates the fourth connecting portion along the thickness direction of the fourth supporting portion; the second supporting portion is provided with a second receiving groove, and the second connecting portion includes a second protrusion, and the second protrusion is connected to the inner wall of the second receiving groove in the thickness direction of the second supporting portion, and the second protrusion is cooperatively connected with the second fixing groove.

7. The spacer according to claim 2, characterized in that: The first pressing plate and / or the second pressing plate are provided with a liquid injection hole.

8. The spacer according to claim 1, characterized in that: The second connection part is rotatably connected to the fourth connection part, and the first connection part is detachably connected to the third connection part.

9. The spacer according to claim 1, characterized in that: The first body, the first connecting portion, the second body and the third connecting portion are an integrated structure.

10. A battery device, characterized in that: It comprises a battery cell, a pole lug and a spacer as claimed in any one of claims 1 to 9, wherein the pole lug is provided at at least one end of the battery cell, and the pole lug is inserted between the first spacer and the second spacer.

11. An electrical device, characterized in that: It comprises an electric device and the battery device as claimed in claim 10, wherein the battery device supplies power to the electric device.

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