CN220420831U - Spacer assembly, battery pack and vehicle - Google Patents

Abstract

The utility model discloses a spacer ring assembly, a battery pack and a vehicle, wherein the spacer ring assembly comprises: the clamping main body and the reinforcing main body are connected to the two ends of the reinforcing main body in the length direction of the spacer ring assembly, holding grooves with holding holes are formed in the two clamping main bodies, the two holding grooves are used for holding lugs penetrating through the holding holes, the reinforcing main body extends along the length direction of the spacer ring assembly and is provided with a separation part, and the separation part is used for separating the lugs. From this, strengthen the setting of main part, can increase the intensity of spacer ring subassembly to can make the spacer ring subassembly effectively support, also can avoid appearing the skew with remove the problem, can also prevent that the spacer ring subassembly from taking place serious deformation, thereby can promote the effect of spacer ring subassembly centre gripping utmost point ear, the setting of isolation part can further avoid the contact of utmost point core homonymy positive electrode ear and negative electrode ear to cause the risk of short circuit.

Description

Spacer assembly, battery pack and vehicle

Technical Field

The utility model relates to the technical field of batteries, in particular to a spacer ring assembly, a battery pack and a vehicle.

Background

In the prior art, a plurality of tabs can be led out from one end of the battery cell according to the scheme that bipolar posts are arranged on two sides of the battery cell, when polarities of a plurality of tabs at the same end are different, the problem of short circuit is easy to occur between the plurality of tabs, and moreover, the problem of offset and movement is easy to occur due to insufficient structural strength of the space ring, so that the clamping effect of the tabs is influenced.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present utility model is to provide a spacer assembly, which can effectively support, avoid the problems of offset and movement, and prevent the spacer assembly from being severely deformed, so as to improve the effect of clamping the tab by the spacer assembly.

The utility model further provides a battery.

The utility model further provides a battery pack.

The utility model further provides a vehicle.

A spacer assembly according to an embodiment of the first aspect of the present utility model includes: the clamping main body is connected to two ends of the reinforcing main body in the length direction of the spacer ring assembly, containing grooves with clamping holes are formed in the clamping main body, the containing grooves are used for containing lugs penetrating through the clamping holes, the reinforcing main body extends in the length direction of the spacer ring assembly and is provided with isolation portions, and the isolation portions are used for isolating the lugs.

From this, strengthen the setting of main part, can increase the intensity of spacer ring subassembly to can make the spacer ring subassembly effectively support, also can avoid appearing the skew with remove the problem, can also prevent that the spacer ring subassembly from taking place serious deformation, thereby can promote the effect of spacer ring subassembly centre gripping utmost point ear, the setting of isolation part can further avoid the contact of utmost point core homonymy positive electrode ear and negative electrode ear to cause the risk of short circuit.

According to some embodiments of the utility model, the reinforcement body further comprises: the isolation part is arranged on the reinforced bottom plate, and two ends of the reinforced bottom plate are respectively connected with the clamping main body.

According to some embodiments of the utility model, the spacers are disposed at both ends of the reinforcing base plate in a length direction; or (b)

The isolation part is arranged at the middle part of the reinforcing bottom plate in the length direction.

According to some embodiments of the utility model, the reinforcement body further comprises: the first reinforcing side plate is arranged on at least one side of the reinforcing bottom plate and is also connected with the isolation part.

According to some embodiments of the utility model, the bottom surface of the reinforcing floor is integrally constructed as a plane, which is parallel to the horizontal plane; or the bottom surface of the reinforcing bottom plate is provided with an inclined surface, the inclined angle of the inclined surface relative to the horizontal plane is alpha, and the alpha meets the relation: alpha is more than 0 and less than or equal to 3 degrees; or the bottom surface of the reinforced bottom plate is provided with a V-shaped surface; or the bottom surface of the reinforcing bottom plate is provided with an inverted V-shaped surface.

According to some embodiments of the utility model, the clamping body comprises: clamping bottom plate and second strengthen curb plate, clamping bottom plate connect in the one end of strengthening the bottom plate, clamping bottom plate forms the centre gripping hole, the second strengthen the curb plate set up in at least one side of clamping bottom plate.

According to some embodiments of the utility model, the bottom surface of the clamping bottom plate is configured with a bevel, and the bevel is inclined at an angle beta relative to the horizontal plane, and beta satisfies the relation: beta is more than or equal to 5 degrees and less than or equal to 20 degrees.

According to some embodiments of the utility model, the spacer comprises: the spacer ring assembly comprises a first spacer plate, a second spacer plate and a connecting plate, wherein the first spacer plate and the second spacer plate are arranged at intervals in the length direction of the spacer ring assembly, and the connecting plate is connected between the first spacer plate and the second spacer plate.

According to some embodiments of the utility model, the spacer assembly includes two oppositely disposed spacers, each comprising: the clamping parts are connected to two ends of the reinforcing part in the length direction of the space ring, the two opposite clamping parts form the clamping main body, and the two opposite reinforcing parts form the reinforcing main body.

According to some embodiments of the utility model, at least one end of the reinforcing part and one end of the clamping part, which is away from the reinforcing part, are provided with clamping parts, and two opposite clamping parts are in clamping fit.

According to some embodiments of the utility model, the clamping body and the reinforcing body have airflow holes formed therein.

According to some embodiments of the utility model, the spacer assembly has a length d that satisfies the relationship: d is more than or equal to 90mm and less than or equal to 350mm.

A battery according to an embodiment of the second aspect of the present utility model includes: a housing; the pole core is arranged in the shell, and at least two pole lugs are arranged at the end part of the pole core; the cover plate is arranged at the end part of the shell; the at least two polar posts are arranged on the outer side of the cover plate; and the spacer ring assembly is arranged at the end part of the pole core and positioned at the inner side of the cover plate, the pole lugs are at least partially accommodated in the corresponding accommodating grooves after penetrating through the clamping holes, and the pole lugs are connected with the pole posts in one-to-one correspondence.

According to some embodiments of the utility model, at least two of the tabs include positive and negative tabs of opposite polarity, the positive and negative tabs being received in different ones of the receiving slots.

According to some embodiments of the utility model, the number of the electrode cores is two, the electrode cores are arranged in the length direction of the shell, and the positive electrode lug and the negative electrode lug are arranged at one end of each electrode core, corresponding to the cover plate.

According to an embodiment of the third aspect of the present utility model, a battery pack includes: the battery described above.

According to a fourth aspect of the present utility model, a vehicle includes: the battery pack described above.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic view of a structure of a distribution of poles of different polarities on the same side of two poles in a battery case according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a current loop of a pole having different polarities on the same side of two poles in a battery housing according to an embodiment of the present utility model;

FIG. 3 is a schematic structural view of a spacer ring assembly according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of a spacer according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of different locations on a spacer according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of a reinforcement location implemented in accordance with the present utility model;

FIG. 7 is a cross-sectional view of a nip location implemented in accordance with the present utility model;

fig. 8 is a schematic view of the arrangement of poles of different polarities on the same side of one pole in a battery housing according to the present utility model.

Reference numerals:

100. a spacer assembly;

10. a reinforcing body; 11. reinforcing the bottom plate; 12. a first reinforcing side plate;

20. a clamping body; 21. a receiving groove; 22. a clamping hole; 23. clamping the bottom plate; 24. a second reinforcing side plate;

30. an isolation part; 31. a first partition plate; 32. a second partition plate; 33. a connecting plate;

40. a spacer ring; 41. a clamping part; 42. a reinforcing part;

50. a clamping part; 51. a buckle; 52. a clamping groove;

60. a positive electrode tab; 61. a negative electrode ear;

70. a pole core; 71. a positive electrode post; 72. a negative electrode column; 73. an air flow hole; 74. a cover plate; 75. a housing.

Detailed Description

Embodiments of the present utility model will be described in detail below, with reference to the accompanying drawings, which are exemplary.

A spacer assembly 100 according to an embodiment of the present utility model is described below with reference to fig. 1-8.

As shown in fig. 3 and 4, a spacer ring assembly 100 according to an embodiment of the first aspect of the present utility model includes: the clamping body 20 and the reinforcing body 10 are connected at both ends of the reinforcing body 10 in the length direction of the spacer ring assembly 100, the holding bodies 20 are respectively formed with accommodating grooves 21 with holding holes 22 therein, the two accommodating grooves 21 are used for accommodating tabs passing through the holding holes 22, the reinforcing body 10 extends along the length direction of the spacer ring assembly 100, the reinforcing body 10 is provided with a separation part 30, and the separation part 30 is used for separating the tabs.

Specifically, as shown in fig. 3 and fig. 4, the spacer assembly 100 may be used for the pole core 70 of the multipole pole, when the pole core 70 adopts the same-side homopolar design, so that the contact between the pole lugs of the positive pole and the negative pole on the same side can be avoided in layout, the short circuit caused by overlap contact of the pole lugs can be prevented, the positive pole lug 60 and the negative pole lug 61 generate high-voltage arc discharge, which causes safety risk. The spacer ring assembly 100 mainly comprises a clamping main body 20 and a reinforcing main body 10, wherein the clamping main body 20 is connected to two ends of the reinforcing main body 10, the clamping main body 20 is used for clamping the lug root of the pole core 70, the reinforcing main body 10 extends along the length direction of the spacer ring assembly 100, the reinforcing main body 10 is arranged, the strength of the spacer ring assembly 100 can be increased, the spacer ring assembly 100 can be effectively supported, the problems of deflection and movement can be avoided, the spacer ring assembly 100 can be prevented from being seriously deformed, and the effect of clamping the lug by the spacer ring assembly 100 can be improved. When the pole core 70 adopts the design of different polarities on the same side, the positive pole post 71 and the negative pole post 72 are arranged on the same side, a shorter U-shaped loop can be formed through the arranged positive pole post 71 and the negative pole post 72, and the spacer ring assembly 100 is used for avoiding the contact of pole lugs with different polarities on the same side, the spacer ring assembly 100 mainly comprises a clamping main body 20 and a reinforcing main body 10, the clamping main body 20 is connected at two ends of the reinforcing main body 10, the clamping main body 20 is used for clamping the pole lug root of the pole core 70, the reinforcing main body 10 extends along the length direction of the spacer ring assembly 100, the strength of the spacer ring assembly 100 can be increased, so that the spacer ring assembly 100 can be effectively supported, the problems of deflection and movement can be avoided, and the spacer ring assembly 100 is prevented from being seriously deformed, so that the effect of clamping the pole lugs by the spacer ring assembly 100 can be improved.

In addition, the reinforcing body 10 is provided with the isolating part 30, the isolating part 30 separates two sides of the spacer ring assembly 100 in the length direction to form the accommodating groove 21 with the clamping holes 22, the free ends of the pole lugs can be bent in the accommodating groove 21 through the clamping holes 22, when the pole lugs are compressed or the distance between the positive pole lugs 60 and the negative pole lugs 61 of the pole lugs 70 is too short due to the defects of burrs, dust, flanging and the like of the pole lug die cutting, the isolating part 30 of the reinforcing body 10 can further avoid the risk of short circuit caused by the contact between the positive pole lugs 60 and the negative pole lugs 61 on the same side of the pole lugs 70.

Therefore, the arrangement of the reinforcing body 10 can increase the strength of the spacer ring assembly 100, so that the spacer ring assembly 100 can be effectively supported, the problems of deflection and movement can be avoided, the spacer ring assembly 100 can be prevented from being seriously deformed, the effect of clamping the tab by the spacer ring assembly 100 can be improved, and the risk of short circuit caused by contact between the positive tab 60 and the negative tab 61 on the same side of the pole core 70 can be further avoided due to the arrangement of the isolating part 30.

According to some embodiments of the utility model, as shown in fig. 4, the reinforcing body 10 further comprises: the reinforcing base plate 11, the isolation portion 30 is disposed on the reinforcing base plate 11, and both ends of the reinforcing base plate 11 are respectively connected with the clamping body 20. Wherein, the isolation part 30 not only plays a role of isolating the polar lugs with different polarities, but also can further increase the strength of the isolation part 30 by arranging the isolation part 30 on the reinforcing bottom plate 11.

According to some embodiments of the present utility model, as shown in fig. 4, the partition 30 is provided at both ends of the reinforcing floor 11 in the length direction, or the partition 30 is provided at the middle of the reinforcing floor 11 in the length direction. According to the length of the reinforcing bottom plate 11, the number of the isolating parts 30 on the reinforcing bottom plate 11 may be two, the two isolating parts 30 are respectively arranged at two ends of the reinforcing bottom plate 11 in the length direction, the isolating part 30 may be one, and one isolating part 30 may be arranged in the middle of the reinforcing bottom plate 11, so that the positions and the number of the isolating parts 30 on the reinforcing bottom plate 11 may be adjusted according to the length of the reinforcing bottom plate 11, thereby being convenient for isolating and placing the tabs of different sizes.

According to some embodiments of the utility model, as shown in fig. 4, the reinforcing body 10 further comprises: the first reinforcing side plate 12, the first reinforcing side plate 12 is disposed on at least one side of the reinforcing bottom plate 11, and the first reinforcing side plate 12 is further connected to the partition 30. Wherein, the first reinforcing side plate 12 may be provided one or two, for example, when the first reinforcing side plate 12 is provided as one, the first reinforcing side plate 12 may be provided at the outer side of the reinforcing bottom plate 11 or may be provided at the inner side of the reinforcing bottom plate 11, so that the strength of the reinforcing body 10 may be increased, effective support may be performed, when the first reinforcing side plate 12 is provided as two, the first reinforcing side plate 12 may be provided at the inner side and the outer side of the reinforcing bottom plate 11, respectively, and the two first reinforcing side plates 12 may be provided at intervals along the width direction of the reinforcing bottom plate 11, so that the strength of the reinforcing body 10 may be further increased, the problem of offset and movement may be avoided, and the spacer assembly 100 may be prevented from being deformed, thereby improving the effect of clamping the tab by the spacer assembly 100. In addition, in the length direction of the reinforced bottom plate 11, two first reinforced side plates 12 extend along the length direction of the reinforced bottom plate 11, the first reinforced side plates 12 are connected with the isolation part 30, and the height of the first reinforced side plates 12 extending upwards away from the reinforced bottom plate 11 is not more than the whole height of the space ring assembly 100, so that the arrangement of the first reinforced side plates 12 can play a supporting role on the isolation part 30 in the length direction of the reinforced bottom plate 11, strength of the isolation part 30 can be enhanced, and contact between the positive electrode lugs 60 and the negative electrode lugs 61 on the same side can be effectively prevented, so that the risk of short circuit can be avoided.

According to some embodiments of the present utility model, as shown in fig. 4 to 7, the bottom surface of the reinforcing floor 11 is integrally configured as a plane, which is parallel to the horizontal plane, or the bottom surface of the reinforcing floor 11 is configured with a slope, which is inclined at an angle α with respect to the horizontal plane, satisfying the relationship: 0 DEG < alpha < 3 DEG, or the bottom surface of the reinforcing base plate 11 is configured with a V-shaped surface, or the bottom surface of the reinforcing base plate 11 is configured with an inverted V-shaped surface. Wherein, the bottom surface of the reinforcing bottom plate 11 is used for pressing the diaphragm, and the bottom surface of the reinforcing bottom plate 11 can be a horizontal surface, so that the horizontal surface is completely contacted with the surface of the diaphragm, and the diaphragm can be pressed better. In order to avoid that the bottom surface of the reinforcing bottom plate 11 generates larger stress in the process of pressing the diaphragm, the bottom surface of the reinforcing bottom plate 11 can be set to be an inclined surface, the inclined surface is smaller in stress compared with the horizontal surface, further, the inclination angle of the inclined surface relative to the horizontal surface can be changed, the stress born by the bottom surface of the reinforcing bottom plate 11 can be accurately controlled by changing the inclination angle alpha, further, the bottom surface of the reinforcing bottom plate 11 can be set to be a V-shaped surface or an inverted V-shaped surface, and thus, the force generated by pressing the diaphragm can be dispersed, and the stress generated by pressing the diaphragm can be reduced.

According to some embodiments of the utility model, as shown in fig. 4, the clamping body 20 comprises: a clamping bottom plate 23 and a second reinforcing side plate 24, the clamping bottom plate 23 is connected to one end of the reinforcing bottom plate 11, the clamping bottom plate 23 forms a clamping hole 22, and the second reinforcing side plate 24 is disposed on at least one side of the clamping bottom plate 23. Wherein, the inner sides of the two clamping bottom plates 23 are provided with clamping holes 22, the free ends of the lugs of the positive and negative poles on the same side can pass through the clamping holes 22 to be bent and placed, and the second reinforcing side plate 24 is arranged on at least one side of the clamping bottom plates 23, so that the strength of the lugs clamped by the clamping part 41 can be increased.

According to an embodiment of the present utility model, as shown in fig. 4 to 7, the bottom surface of the clamping bottom plate 23 is configured with an inclined surface, and the inclined surface has an inclination angle β with respect to the horizontal plane, and β satisfies the relationship: beta is more than or equal to 5 degrees and less than or equal to 20 degrees. Specifically, in order to make the clamping bottom plate 23 clamp the root of the tab well, the bottom surface of the clamping bottom plate 23 is set to be more compact in that the inclined surface can be matched with the tab, so that deformation between the two can be prevented, and the tab can be clamped by the clamping part 41 more firmly.

According to some embodiments of the utility model, as shown in fig. 4, the spacer 30 includes: the first and second isolation plates 31, 32 and the connection plate 33, the first and second isolation plates 31, 32 are disposed at intervals in the length direction of the spacer assembly 100, and the connection plate 33 is connected between the first and second isolation plates 31, 32. Wherein the first and second partition plates 31 and 32 are spaced apart to form a cavity, so that the weight of the partition portion 30 can be reduced, and the connection plate 33 is connected between the first and second partition plates 31 and 32, thereby providing a reinforcing supporting effect between the first and second partition plates 31 and 32.

According to some embodiments of the present utility model, as shown in fig. 3 and 4, spacer assembly 100 includes two oppositely disposed spacers 40, each spacer 40 including: the clamping portion 41 and the reinforcing portion 42 are connected to both ends of the reinforcing portion 42 in the longitudinal direction of the spacer 40, and two opposing clamping portions 41 constitute the clamping body 20 and two opposing reinforcing portions 42 constitute the reinforcing body 10. Specifically, two spacers 40 in the spacer assembly 100 are oppositely disposed, wherein two ends of the reinforcing portion 42 are clamping portions 41, the two opposite clamping portions 41 are used for clamping the root portion of the tab, and the two opposite reinforcing portions 42 are connected and matched, so that the strength of the spacer assembly 100 along the length direction thereof can be further enhanced, and therefore, the problems of offset and movement can be prevented, and the effect of clamping the tab by the clamping body 20 is affected.

According to some embodiments of the present utility model, as shown in fig. 4, at least one end of the reinforcing portion 42 and one end of the clamping portion 41 facing away from the reinforcing portion 42 are provided with a clamping portion 50, and two opposite clamping portions 50 are in clamping engagement. Wherein, the clamping portion 50 of one clamping portion 41 is a clamping buckle 51, and the clamping portion 50 of the other clamping portion 41 is a clamping groove 52, and the clamping buckle 51 of the one clamping portion 41 is in clamping fit with the clamping groove 52 of the other clamping portion 41. The reinforcing parts 42 of the two opposite spacers 40 are also clamped and matched through the clamping parts 50, wherein the clamping parts 50 on the reinforcing parts 42 of one spacer 40 are arranged as the clamping buckles 51, the clamping parts 50 on the reinforcing parts 42 of the other spacer 40 are arranged as the clamping grooves 52, so that the reinforcing parts 42 of the two opposite spacers 40 are clamped and matched through the clamping buckles 51 and the clamping grooves 52, and if the reinforcing parts 42 are smaller in length, the clamping parts 50 are not arranged at the reinforcing parts 42, so that the two opposite spacers 40 can be conveniently installed, the clamping parts 50 are arranged at intervals along the length direction of the spacer assembly 100, the clamping parts 50 are correspondingly arranged in different functional areas on the spacer assembly 100, the number of the clamping parts 50 can also be arranged according to the length of the spacer assembly 100, and the number of the clamping parts 50 is three or more, so that the connection and the matching of the spacer assemblies 100 with different sizes can be satisfied, and the matching can be more firm.

According to some embodiments of the present utility model, the clamping portion 41 and the reinforcing portion 42 are formed with air flow holes 73, wherein the air flow holes 73 may be provided in a plurality, and the plurality of air flow holes 73 may serve as air flow passages of the explosion-proof valve.

According to an embodiment of the present utility model, as shown in fig. 5, the spacer ring assembly 100 has a length d that satisfies the relationship: d is more than or equal to 90mm and less than or equal to 350mm. The length d of the spacer ring assembly 100 may satisfy the isolation of different size tabs, specifically, the length of the clamping portion 41 in the spacer ring assembly 100 is designed to match the width of the tab, the length of the clamping portion 41 is generally 10mm greater than the width of the tab, the rest is the reinforcing portion 42, when the length of the reinforcing portion 42 is less than or equal to 20mm, the reinforcing portion 42 may be provided with fewer clamping portions 50, for example, the middle portion of the reinforcing portion 42 may be provided with the clamping portions 50, so that two opposite reinforcing portions 42 may be conveniently matched by clamping the clamping portions 50.

A battery according to an embodiment of the second aspect of the present utility model includes: the end of the pole core 70 is provided with at least two lugs, the cover plate 74 is arranged at the end of the shell 75, at least two poles are arranged at the outer side of the cover plate 74, the spacer ring assembly 100 is arranged at the end of the pole core 70, the spacer ring assembly 100 is positioned at the inner side of the cover plate 74, the lugs are at least partially accommodated in the corresponding accommodating grooves 21 after penetrating through the clamping holes 22, and the lugs are connected with the poles in a one-to-one correspondence manner.

As shown in fig. 3, according to some embodiments of the present utility model, at least two tabs include a positive tab 60 and a negative tab 61 having opposite polarities, and the positive tab 60 and the negative tab 61 are accommodated in different accommodating grooves 21. Wherein, positive tab 60 and negative tab 61 of different polarity are separated by separator 30 provided on reinforcing portion 42, which can avoid the risk of short circuit caused by contact of positive tab 60 and negative tab 61, and can avoid the problems of offset and movement.

As shown in fig. 1 and 2, according to some embodiments of the present utility model, the number of the electrode tabs 70 is two, and the electrode tabs 70 are arranged in the length direction of the case 75, and one end of each electrode tab 70 corresponding to the cap plate 74 is provided with the positive electrode tab 60 and the negative electrode tab 61, so that the current direction can be changed, the current conduction path can be shortened, and thus the heat generation can be effectively reduced, and the positive electrode tab 60 and the negative electrode tab 61 corresponding to each electrode tab 70 are separated by the separating part 30 provided on the reinforcing part 42, so that the problems of offset and movement can be avoided.

According to an embodiment of the third aspect of the present utility model, a battery pack includes: the battery of the above embodiment.

According to a fourth aspect of the present utility model, a vehicle includes: the battery pack of the above embodiment.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (17)

1. A spacer assembly, comprising: the clamping main body is connected to two ends of the reinforcing main body in the length direction of the spacer ring assembly, containing grooves with clamping holes are formed in the clamping main body, the containing grooves are used for containing lugs penetrating through the clamping holes, the reinforcing main body extends in the length direction of the spacer ring assembly and is provided with isolation portions, and the isolation portions are used for isolating the lugs.

2. The spacer assembly of claim 1 wherein said reinforcing body further comprises: the isolation part is arranged on the reinforced bottom plate, and two ends of the reinforced bottom plate are respectively connected with the clamping main body.

3. The spacer assembly of claim 2 wherein said spacers are disposed at both lengthwise ends of said reinforcing floor; or (b)

The isolation part is arranged at the middle part of the reinforcing bottom plate in the length direction.

4. The spacer assembly of claim 2 wherein said reinforcing body further comprises: the first reinforcing side plate is arranged on at least one side of the reinforcing bottom plate and is also connected with the isolation part.

5. The spacer assembly of claim 2 wherein the bottom surface of the reinforcing floor is integrally constructed as a plane, the plane being parallel to a horizontal plane; or (b)

The bottom surface of the reinforcing bottom plate is provided with an inclined plane, the inclined angle of the inclined plane relative to the horizontal plane is alpha, and the alpha meets the relation: alpha is more than 0 and less than or equal to 3 degrees; or (b)

The bottom surface of the reinforcing bottom plate is provided with a V-shaped surface; or (b)

The bottom surface of the reinforcing bottom plate is provided with an inverted V-shaped surface.

6. The spacer assembly of claim 2 wherein said clamping body comprises: clamping bottom plate and second strengthen curb plate, clamping bottom plate connect in the one end of strengthening the bottom plate, clamping bottom plate forms the centre gripping hole, the second strengthen the curb plate set up in at least one side of clamping bottom plate.

7. The spacer assembly of claim 6 wherein the bottom surface of the clamping floor is configured with a bevel, the bevel being inclined at an angle β relative to the horizontal, β satisfying the relationship: beta is more than or equal to 5 degrees and less than or equal to 20 degrees.

8. The spacer assembly of claim 1 wherein said spacer comprises: the spacer ring assembly comprises a first spacer plate, a second spacer plate and a connecting plate, wherein the first spacer plate and the second spacer plate are arranged at intervals in the length direction of the spacer ring assembly, and the connecting plate is connected between the first spacer plate and the second spacer plate.

9. The spacer assembly of any one of claims 1-8, wherein the spacer assembly comprises two oppositely disposed spacers, both of the spacers comprising: the clamping parts are connected to two ends of the reinforcing part in the length direction of the space ring, the two opposite clamping parts form the clamping main body, and the two opposite reinforcing parts form the reinforcing main body.

10. The spacer assembly of claim 9 wherein at least one end of the reinforcing portion and one end of the clamping portion facing away from the reinforcing portion are provided with a snap fit portion, two opposing snap fit portions snap fit.

11. The spacer assembly of claim 1 wherein said clamping body and said reinforcing body have airflow apertures formed therein.

12. The spacer assembly of claim 1 wherein the spacer assembly has a length d, d satisfying the relationship: d is more than or equal to 90mm and less than or equal to 350mm.

13. A battery, comprising:

a housing;

the pole core is arranged in the shell, and at least two pole lugs are arranged at the end part of the pole core;

the cover plate is arranged at the end part of the shell;

the at least two polar posts are arranged on the outer side of the cover plate; and

the spacer assembly according to any one of claims 1-12, wherein the spacer assembly is disposed at an end of the pole core and is located at an inner side of the cover plate, the pole lugs are at least partially accommodated in the corresponding accommodating grooves after passing through the clamping holes, and the pole lugs are connected with the pole posts in a one-to-one correspondence.

14. The battery of claim 13, wherein at least two of the tabs comprise positive and negative tabs of opposite polarity, the positive and negative tabs being received in different ones of the receiving slots.

15. The battery according to claim 14, wherein the number of the electrode cores is two and the electrode cores are arranged in the length direction of the case, and each of the electrode cores is provided with the positive electrode tab and the negative electrode tab corresponding to one end of the cover plate.

16. A battery pack, comprising: the battery of any one of claims 13-15.

17. A vehicle, characterized by comprising: the battery pack of claim 16.