Battery structure assembly and battery

Abstract

The utility model relates to the technical field of energy storage equipment, in particular to a battery structure assembly and a battery, and the battery structure assembly comprises a shell, a pole and a sealing ring. The pole is inserted into the through hole in the shell; and the pole bottom plate is positioned in the shell. The sealing ring is at least partially clamped between the first end face of the shell and the second end face of the bottom plate. The first end face is provided with an annular first protruding part, the second end face is provided with an annular first groove part, at least part of the sealing ring is clamped between the first protruding part and the first groove part in an interference mode, and / or the first end face is provided with an annular second groove part, and the second end face is provided with an annular second protruding part. The sealing ring is at least partially clamped between the second protruding part and the second groove part in an interference mode, and / or the first end face and the second end face are each provided with an annular third protruding part, and the sealing ring is at least partially clamped between the third protruding part of the first end face and the third protruding part of the second end face in an interference mode. The battery comprises the battery structure assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage equipment technical field especially relates to a battery structure subassembly and battery. BACKGROUND

[0002] The existing battery will be set on the pole of the sealing ring, to ensure that the gap between the pole and the battery shell does not leak. But the space position of the pole is limited, the size of the sealing ring and its effective sealing area are limited, and the battery will still leak because the sealing area is not enough. SUMMARY

[0003] One purpose of the utility model is to provide a battery structure subassembly, which can increase the sealing area, improve the sealing performance and prevent liquid leakage.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] A battery structure subassembly is provided, comprising:

[0006] A shell is provided with a through hole;

[0007] A pole is inserted into the through hole, and the bottom plate of the pole is located in the shell;

[0008] A sealing ring is at least partially clamped between the first end face of the shell facing the bottom plate and the second end face of the bottom plate facing the shell;

[0009] The first end face has a ring-shaped first protruding part, the second end face has a ring-shaped first recessed part, the sealing ring is at least partially clamped between the first protruding part and the first recessed part, and / or the first end face has a ring-shaped second recessed part, the second end face has a ring-shaped second protruding part, the sealing ring is at least partially clamped between the second protruding part and the second recessed part, and / or the first end face and the second end face both have a ring-shaped third protruding part, and the sealing ring is at least partially clamped between the third protruding part of the first end face and the third protruding part of the second end face.

[0010] Optionally, the first protruding part and the first recessed part are arranged around the through hole;

[0011] And / or, the second protruding part and the second recessed part are arranged around the through hole;

[0012] And / or, the third protruding part of the first end face and the third protruding part of the second end face are arranged around the through hole.

[0013] Optionally, the first protruding part and the first groove part are coaxially arranged with the through hole;

[0014] And / or, the second protruding part and the second groove part are coaxially arranged with the through hole;

[0015] And / or, the third protruding part of the first end face and the third protruding part of the second end face are coaxially arranged with the through hole.

[0016] Optionally, the width of the first protruding part is 1mm-1.5mm;

[0017] And / or, the width of the first groove part is 1mm-1.5mm;

[0018] And / or, the width of the second protruding part is 1mm-1.5mm;

[0019] And / or, the width of the second groove part is 1mm-1.5mm;

[0020] And / or, the width of the third protruding part is 1mm-1.5mm.

[0021] Optionally, the ratio of the protruding height of the first protruding part to the thickness of the sealing ring after compression is 20%-35%;

[0022] And / or, the ratio of the depth of the first groove part to the thickness of the sealing ring after compression is 20%-35%;

[0023] And / or, the ratio of the protruding height of the second protruding part to the thickness of the sealing ring after compression is 20%-35%;

[0024] And / or, the ratio of the depth of the second groove part to the thickness of the sealing ring after compression is 20%-35%;

[0025] And / or, the ratio of the protruding height of the third protruding part to the thickness of the sealing ring after compression is 20%-35%.

[0026] Optionally, a plurality of first protruding parts are coaxially arranged in a ring shape, and adjacent first protruding parts are arranged at intervals;

[0027] And / or, a plurality of first groove parts are coaxially arranged in a ring shape, and adjacent first groove parts are arranged at intervals;

[0028] And / or, a plurality of second protruding parts are coaxially arranged in a ring shape, and adjacent second protruding parts are arranged at intervals;

[0029] And / or, the second groove part is annular coaxial with multiple, and the adjacent second groove part is spaced apart;

[0030] And / or, the third convex part is annular coaxial with multiple, and the adjacent third convex part is spaced apart.

[0031] Optionally, the distance between the adjacent two edges of the adjacent first convex part is 0.5mm-1mm;

[0032] And / or, the distance between the adjacent two edges of the adjacent first groove part is 0.5mm-1mm;

[0033] And / or, the distance between the adjacent two edges of the adjacent second convex part is 0.5mm-1mm;

[0034] And / or, the distance between the adjacent two edges of the adjacent second groove part is 0.5mm-1mm;

[0035] And / or, the distance between the adjacent two edges of the adjacent third convex part is 0.5mm-1mm.

[0036] Optionally, the thickness of the sealing ring in the uncompressed state is 1mm-1.2mm;

[0037] And / or, the thickness of the sealing ring in the compressed state is 0.7mm-0.75mm;

[0038] And / or, the compression amount of the sealing ring is 30%-35%.

[0039] Optionally, the sealing ring is a circular ring, the first convex part, the first groove part is a circular ring, and / or the second convex part, the second groove part is a circular ring, and / or the third convex part is a circular ring;

[0040] Or, the sealing ring is a square ring, the first convex part, the first groove part is a square ring, and / or the second convex part, the second groove part is a square ring, and / or the third convex part is a square ring.

[0041] Another purpose of the utility model is to provide a battery which can increase the sealing area, improve the sealing performance, and prevent liquid leakage.

[0042] To achieve this purpose, the utility model adopts the following technical scheme:

[0043] A battery is provided, which comprises a battery structure assembly and a battery core.

[0044] The utility model discloses a beneficial effect:

[0045] The utility model provides a kind of battery structure component, including shell, pole and sealing ring. Among them, through-hole is set up on shell, pole is inserted in through-hole, and the bottom plate of pole is located in shell. Sealing ring is at least partially clamped between the first end face of shell towards bottom plate and the second end face of bottom plate towards shell. First end face has annular first protruding part, and second end face has annular first recessed part, and sealing ring is at least partially clamped between first protruding part and first recessed part with interference, and / or first end face has annular second recessed part, and second end face has annular second protruding part, and sealing ring is at least partially clamped between second protruding part and second recessed part with interference, and / or first end face and second end face both have annular third protruding part, and sealing ring is at least partially clamped between the third protruding part of first end face and the third protruding part of second end face with interference. By setting protruding and recessed groove, or separately setting two side protrusions, the compression amount of sealing ring can be increased, effective sealing area is improved, so as to improve the sealing performance of battery, prevent liquid leakage.

[0046] The utility model also provides a kind of battery, including electric core and above-mentioned battery structure component, and electric core is located in shell. The battery can improve the effective sealing area of sealing ring, so as to improve the sealing performance of battery, prevent liquid leakage. BRIEF DESCRIPTION OF DRAWINGS

[0047] Figure 1 It is the explosion view of the battery structure component (with circular ring form sealing ring) provided by the utility model embodiment;

[0048] Figure 2 It is the structure schematic view of top cover (with circular ring form second protruding part) provided by the utility model embodiment;

[0049] Figure 3 It is the partial sectional view of the battery structure component (with circular ring form sealing ring) provided by the utility model embodiment;

[0050] Figure 4 It is the explosion view of the battery structure component (with square ring form sealing ring) provided by the utility model embodiment;

[0051] Figure 5 It is the structure schematic view of top cover (with square ring form second protruding part) provided by the utility model embodiment;

[0052] Figure 6 It is the partial sectional view of the battery structure component (with square ring form sealing ring) provided by the utility model embodiment.

[0053] In the figure:

[0054] 1, top cover; 11, first end surface; 111, first protruding part;

[0055] 2, pole; 21, bottom plate; 211, second end surface; 2111, first recessed part; 22, main body part;

[0056] 3, sealing ring; 4, upper plastic; 5, lower plastic; 6, anti-explosion sheet; 7, patch; 8, aluminum block. DETAILED DESCRIPTION

[0057] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above-described accompanying drawings.

[0058] In this application, the terms "comprise", "comprising", "include", "including", "have", "has", "contain", "containing", or any other any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0059] In this application, the term "and / or", is a description of an associated object, which means that there can be three kinds of relations. For example, A and / or B, can mean that there are three cases: A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in this application generally means that the front and rear associated objects are in a "and / or" relationship.

[0060] In this application, the terms "connect", "combine", "couple", "mount" can be direct connection, combination, coupling or mounting, or indirect connection, combination, coupling or mounting. Among them, for example, direct connection means that two parts or components are connected together without setting intermediate parts, indirect connection means that two parts or components are connected with at least one intermediate part, and the two parts or components are connected through the intermediate part. In addition, "connection" and "coupling" are not limited to physical or mechanical connection or coupling, and can include electrical connection or coupling.

[0061] In this application, those of ordinary skill in the art will understand that relative terms (e.g., "about", "approximately", "substantially", etc.) used in connection with a quantity or a condition (e.g., "about 1 mm" or "substantially parallel") are intended to include the stated value and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with a particular measurement of the particular value and tolerances that are expected to result from manufacturing, assembling, using, etc. of the particular value. Such terms are also to be construed to disclose a range defined by the absolute values of the two endpoints. The relative terms can refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value plus or minus. Values that do not employ relative terms are also to be disclosed as particular values with tolerances. In addition, "substantially" when used in the context of expressing a relative angular positional relationship (e.g., substantially parallel, substantially perpendicular) can refer to plus or minus a certain number of degrees (e.g., 1 degree, 5 degrees, 10 degrees or more) from the indicated angle.

[0062] In this application, those of ordinary skill in the art will understand that a function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, a function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0063] In this application, the terms "upper", "lower", "left", "right", "front", "back", and the like are described in the orientation and position shown in the drawings, and should not be understood as a limitation on the embodiments of the present application. In addition, it is also understood in the context that when referring to one element connected to another element "on" or "under", it can not only be directly connected to another element "on" or "under", but also indirectly connected to another element "on" or "under" through an intermediate element. It should also be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like not only represent the positive direction, but also can be understood as the side direction. For example, the lower side can include the directly below, left below, right below, front below, and back below, etc.

[0064] The existing battery is sleeved with a sealing ring on the pole post to ensure that the gap between the pole post and the battery shell does not leak liquid. However, the space position at the pole post is limited, which limits the size of the sealing ring and its effective sealing area, and the sealing area is still not enough to cause the battery to leak liquid. In order to increase the sealing area of the sealing ring and improve the sealing performance to prevent liquid leakage, the present embodiment provides a battery structure assembly.

[0065] As Figures 1-3As shown, the battery structure assembly of the embodiment comprises a shell, a pole 2 and a sealing ring 3. The shell is provided with a through hole, the pole 2 is inserted into the through hole, and the bottom plate 21 of the pole 2 is located in the shell. The sealing ring 3 is at least partially clamped between the first end face 11 of the shell facing the bottom plate 21 and the second end face 211 of the bottom plate 21 facing the shell. The first end face 11 has a first annular protrusion 111, the second end face 211 has a first annular groove 2111, and the sealing ring 3 is at least partially clamped between the first protrusion 111 and the first groove 2111 in an interference fit, and / or the first end face 11 has a second annular groove, the second end face 211 has a second annular protrusion, and the sealing ring 3 is at least partially clamped between the second protrusion and the second groove in an interference fit, and / or the first end face 11 and the second end face 211 both have a third annular protrusion, and the sealing ring 3 is at least partially clamped between the third protrusions of the first end face 11 and the second end face 211 in an interference fit. By providing protrusions and grooves, or providing protrusions on both sides alone, the compression amount of the sealing ring 3 can be increased, the effective sealing area can be improved, and thus the sealing performance of the battery can be improved, preventing liquid leakage.

[0066] To prevent local stress concentration of the sealing ring 3, optionally, in the embodiment, the top surface of the first protrusion 111 is a circular arc surface, i.e. the top of the cross section of the first protrusion 111 is a circular arc line. Optionally, the groove bottom of the first groove 2111 is a circular arc surface, i.e. the bottom of the cross section of the first groove 2111 is a circular arc line.

[0067] Optionally, in other embodiments, the top surface of the second protrusion is a circular arc surface, i.e. the top of the cross section of the second protrusion is a circular arc line. Optionally, the groove bottom of the second groove is a circular arc surface, i.e. the bottom of the cross section of the second groove is a circular arc line.

[0068] Optionally, in the embodiment, only the first protrusion 111 is provided on the first end face 11, and only the first groove 2111 is provided on the second end face 211. Of course, in other embodiments, only the second groove can be provided on the first end face 11, only the second protrusion can be provided on the second end face 211, or only the third protrusion can be provided on the first end face 11 and the second end face 211, or the first protrusion 111 and the second groove can be combined to increase the overall height of the waves on both sides of the sealing ring 3, or the first protrusion 111 and the third protrusion can be combined, or the second protrusion and the third protrusion can be combined, so that one side of the sealing ring 3 is protruding and the other side is recessed at some positions, the compression depth is lower, and the compression depth is larger at some positions. In some other embodiments, the first protrusion 111, the first groove 2111, the second protrusion, the second groove and the third protrusion can be provided at the same time.

[0069] Optionally, in the present embodiment, the first protruding portion 111 and the first recessed portion 2111 are both arranged around the through hole. Of course, in other embodiments, the first protruding portion 111 and the first recessed portion 2111 can also be both arranged on one side of the through hole, only partially clamping the sealing ring 3, which can also play a role in improving the sealing performance of the local sealing ring 3.

[0070] Optionally, in other embodiments, the second protruding portion and the second recessed portion are both arranged around the through hole. Of course, in other embodiments, the second protruding portion and the second recessed portion can also be both arranged on one side of the through hole, only partially clamping the sealing ring 3, which can also play a role in improving the sealing performance of the local sealing ring 3.

[0071] Optionally, in other embodiments, the third protruding portion of the first end face 11 and the third protruding portion of the second end face 211 are both arranged around the through hole. Of course, in other embodiments, the third protruding portion of the first end face 11 and the third protruding portion of the second end face 211 can also be both arranged on one side of the through hole, only partially clamping the sealing ring 3, which can also play a role in improving the sealing performance of the local sealing ring 3.

[0072] Optionally, the first protruding portion 111 and the first recessed portion 2111 are both arranged coaxially with the through hole, so that the compression force borne by the sealing ring 3 at all places in the circumferential direction is balanced. Similarly, optionally, in other embodiments, the second protruding portion and the second recessed portion are both arranged coaxially with the through hole, so that the compression force borne by the sealing ring 3 at all places in the circumferential direction is balanced. Optionally, in other embodiments, the third protruding portion of the first end face 11 and the third protruding portion of the second end face 211 are both arranged coaxially with the through hole, so that the compression force borne by the sealing ring 3 at all places in the circumferential direction is balanced.

[0073] Optionally, in the present embodiment, the width of the first protruding portion 111 ranges from 1mm to 1.5mm, i.e. the width of the cross section of the annular first protruding portion 111 conforms to the above range. Under the same compression depth, if the width of the first protruding portion 111 is too small, the compression stress is concentrated, which is easy to cause local damage to the sealing ring 3. However, due to the size limitation of the shell and the bottom plate 21, the width of the first protruding portion 111 cannot be too large. Similarly, optionally, the width of the first recessed portion 2111 ranges from 1mm to 1.5mm.

[0074] Optionally, in other embodiments, the width of the second protrusion ranges from 1mm to 1.5mm, i.e. the width of the cross section of the annular second protrusion conforms to the above range. With the same compression depth, if the width of the second protrusion is too small, the compression stress is concentrated, which easily causes local damage of the sealing ring 3. However, the width of the second protrusion cannot be too large due to the size limitation of the shell and the bottom plate 21. Similarly, optionally, the width of the second groove ranges from 1mm to 1.5mm. With the same compression depth, if the width of the second groove is too small, the compression stress is concentrated, which easily causes local damage of the sealing ring 3. However, the width of the second groove cannot be too large due to the size limitation of the shell and the bottom plate 21.

[0075] Optionally, in other embodiments, the width of the third protrusion ranges from 1mm to 1.5mm, i.e. the width of the cross section of the annular third protrusion conforms to the above range. With the same compression depth, if the width of the third protrusion is too small, the compression stress is concentrated, which easily causes local damage of the sealing ring 3. However, the width of the third protrusion cannot be too large due to the size limitation of the shell and the bottom plate 21.

[0076] Optionally, in the present embodiment, the first protrusion 111 and the first groove 2111 are oppositely arranged and have the same width. Optionally, in other embodiments, the first protrusion 111 and the first groove 2111 are staggered. Optionally, in other embodiments, the second protrusion and the second groove are oppositely arranged or staggered. Optionally, in other embodiments, the two third protrusions are oppositely arranged or staggered. It should be noted that the staggered arrangement includes the cases of partially overlapping, partially staggered, or completely staggered, etc.

[0077] Optionally, in the present embodiment, the ratio of the protrusion height of the first protrusion 111 to the thickness of the sealing ring 3 after compression ranges from 20% to 35%. If the ratio is too high, the sealing ring 3 is deformed too much, which affects the service life. If the ratio is too small, the best sealing effect cannot be achieved.

[0078] Similarly, optionally, in the present embodiment, the ratio of the depth of the first groove 2111 to the thickness of the sealing ring 3 after compression ranges from 20% to 35%. If the ratio is too high, the sealing ring 3 is deformed too much, which affects the service life. If the ratio is too small, the best sealing effect cannot be achieved.

[0079] Optionally, in other embodiments, the ratio of the protrusion height of the second protrusion to the thickness of the sealing ring 3 after compression ranges from 20% to 35%. If the ratio is too high, the sealing ring 3 is deformed too much, which affects the service life. If the ratio is too small, the best sealing effect cannot be achieved.

[0080] Optionally, in other embodiments, the ratio of the depth of the second groove portion to the thickness of the sealing ring 3 after compression is in the range of 20%-35%. If the ratio is too high, the sealing ring 3 will be deformed too much, affecting the service life. If the ratio is too small, the optimal sealing effect may not be achieved.

[0081] Optionally, in other embodiments, the ratio of the protrusion height of the third protrusion portion to the thickness of the sealing ring 3 after compression is in the range of 20%-35%. If the ratio is too high, the sealing ring 3 will be deformed too much, affecting the service life. If the ratio is too small, the optimal sealing effect may not be achieved.

[0082] In this embodiment, not only are the first protrusion portion 111 and the first groove portion 2111 oppositely arranged, but the protrusion height of the first protrusion portion 111 is consistent with the depth of the first groove portion 2111, and the width of the first protrusion portion 111 and the first groove portion 2111 is also consistent, so that the sealing ring 3 is only bent in the radial direction, but the thickness is consistent in the radial direction, preventing local stress from being too large and causing the service life of the sealing ring 3 to decrease.

[0083] Optionally, in this embodiment, a plurality of first protrusion portions 111 are arranged annularly and coaxially, and adjacent first protrusion portions 111 are arranged with a spacing. Optionally, a plurality of first groove portions 2111 are arranged annularly and coaxially, and adjacent first groove portions 2111 are arranged with a spacing. Optionally, in this embodiment, three first protrusion portions 111 and three first groove portions 2111 are arranged one-to-one. Of course, in other embodiments, two, four, five, six, or more first protrusion portions 111 and first groove portions 2111 can be arranged.

[0084] Optionally, in other embodiments, a plurality of second protrusion portions are arranged annularly and coaxially, and adjacent second protrusion portions are arranged with a spacing. Optionally, a plurality of second groove portions are arranged annularly and coaxially, and adjacent second groove portions are arranged with a spacing.

[0085] Optionally, in other embodiments, a plurality of third protrusion portions are arranged annularly and coaxially, and adjacent third protrusion portions are arranged with a spacing.

[0086] Optionally, in this embodiment, the distance between the two adjacent edges of adjacent first protrusion portions 111 is in the range of 0.5mm-1mm. Optionally, the distance between the two adjacent edges of adjacent first groove portions 2111 is in the range of 0.5mm-1mm. The distance cannot be too far due to the small area of contact between the bottom plate 21 and the shell, and if the distance is too close, the width of the end surface between the two first groove portions 2111 will be too small, so the strength of this part of the structure is not enough and the sealing ring 3 at this part may not be compressed enough.

[0087] Optionally, in other embodiments, the distance between the two adjacent edges of the adjacent second protruding part is in the range of 0.5mm-1mm. Optionally, the distance between the two adjacent edges of the adjacent second groove part is in the range of 0.5mm-1mm. The distance cannot be too far due to the small contact area between the bottom plate 21 and the shell, and the distance cannot be too close, otherwise the width of the end surface between the two second groove parts is too small, and the strength of this part of the structure is not enough, and it is easy to cause local compression deficiency.

[0088] Optionally, in other embodiments, the distance between the two adjacent edges of the adjacent third protruding part is in the range of 0.5mm-1mm. The distance cannot be too far due to the small contact area between the bottom plate 21 and the shell, and the distance cannot be too close, otherwise the processing difficulty is higher, the processing precision is insufficient, and the adjacent two third protruding parts are easy to overlap, causing the normal end surface between them to disappear and the bending area to decrease compared with the designed value.

[0089] In order to ensure that the sealing ring 3 is fully compressed, optionally, the thickness of the sealing ring 3 in the uncompressed state is in the range of 1mm-1.2mm. Optionally, the thickness of the sealing ring 3 in the compressed state is in the range of 0.7mm-0.75mm. Optionally, the compression amount of the sealing ring 3 is in the range of 30%-35%.

[0090] Optionally, as shown in Figures 1-3 , the sealing ring 3 is a circular ring, the first protruding part 111 and the first groove part 2111 are circular rings, and / or the second protruding part and the second groove part are circular rings, and / or the third protruding part is a circular ring, that is, the annular shape of the concave-convex structure is consistent with the annular shape of the sealing ring 3. The cross section of the main body part 22 of the pole 2 is also circular, and the through hole is also a circular hole.

[0091] Optionally, as shown in Figures 4-6 , the sealing ring 3 is a square ring, the first protruding part 111 and the first groove part 2111 are square rings, and / or the second protruding part and the second groove part are square rings, and / or the third protruding part is a square ring, that is, the annular shape of the concave-convex structure is consistent with the annular shape of the sealing ring 3. The cross section of the main body part 22 of the pole 2 is also square, and the through hole is also a square hole. Optionally, the square corners of the above square structure are all smoothly transitioned.

[0092] Optionally, the shell includes a top cover 1 and a box body, and in this embodiment, the through hole is formed on the top cover 1, that is, the first end surface 11 is located on the top cover 1, and the pole 2 is assembled on the top cover 1. In other embodiments, the through hole can also be formed on the box body, that is, the first end surface 11 is located on the box body, and the pole 2 is assembled on the box body.

[0093] Optionally, the battery structure assembly further includes an upper plastic 4, a lower plastic 5, an anti-explosion sheet 6, and a patch 7. AsFigure 1 and Figure 3 As shown in Figs. 4 and 5, the upper plastic 4 is sleeved on the main body 22 of the pole 2 and partially clamped between the main body 22 of the pole 2 and the inner wall of the through hole, and the upper plastic 4 abuts against the end face of the sealing ring 3 towards the outside of the battery. The lower plastic 5 is attached to the end face of the top cover 1 towards the inside of the battery, and the lower plastic 5 is partially clamped between the top cover 1 and the bottom plate 21 and abuts against the outer ring side wall of the sealing ring 3. The explosion-proof sheet 6 is arranged at the explosion-proof hole of the top cover 1, and the patch 7 is located outside the explosion-proof sheet 6.

[0094] Optionally, the battery structure assembly further comprises an aluminum block 8, as shown in Figs. 6 and 7, the aluminum block 8 is sleeved on the main body 22 of the pole 2, and the aluminum block 8 is welded with the main body 22 to fix the pole 2 on the top cover 1. Figure 4 and Figure 6 Optionally, the battery structure assembly further comprises an aluminum block 8, as shown in Figs. 6 and 7, the aluminum block 8 is sleeved on the main body 22 of the pole 2, and the aluminum block 8 is welded with the main body 22 to fix the pole 2 on the top cover 1.

[0095] Of course, in other embodiments, the pole 2 can also be fixed by riveting, which is not described here.

[0096] Taking the cross section of the main body 22 of the pole 2 as a circle and the sealing ring 3 as a circular ring as an example, the effective sealing area of the sealing ring 3 of the conventional battery structure assembly is 227.52 square millimeters. Under the same space condition, the effective sealing area of the sealing ring 3 in this embodiment can be increased to 305.41 square millimeters, increased by 34.24%. It can be seen that the battery structure assembly in this embodiment can achieve better sealing quality and effectively improve the sealing performance and safety of the battery.

[0097] Taking the cross section of the main body 22 of the pole 2 as a square and the sealing ring 3 as a square ring as an example, the effective sealing area of the sealing ring 3 of the conventional battery structure assembly is 229.32 square millimeters. Under the same space condition, the effective sealing area of the sealing ring 3 in this embodiment can be increased to 344.35 square millimeters, increased by 50%. It can be seen that the battery structure assembly in this embodiment can achieve better sealing quality and effectively improve the sealing performance and safety of the battery.

[0098] The embodiment also provides a battery comprising a battery structure assembly and a battery cell, wherein the battery cell is located in the shell. The battery can increase the effective sealing area of the sealing ring 3, thereby improving the sealing performance of the battery and preventing liquid leakage.

[0099] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A battery structure assembly, characterized by, The utility model relates to a sealing structure of a terminal, which comprises: a housing with a through hole; a pole (2) inserted into the through hole, with a bottom plate (21) of the pole (2) located in the housing; a sealing ring (3) at least partially clamped between a first end face (11) of the housing towards the bottom plate (21) and a second end face (211) of the bottom plate (21) towards the housing; the first end face (11) has a ring-shaped first protruding part (111), the second end face (211) has a ring-shaped first recessed part (2111), the sealing ring (3) is at least partially clamped between the first protruding part (111) and the first recessed part (2111) in interference, and / or the first end face (11) has a ring-shaped second recessed part, the second end face (211) has a ring-shaped second protruding part, the sealing ring (3) is at least partially clamped between the second protruding part and the second recessed part in interference, and / or the first end face (11) and the second end face (211) both have a ring-shaped third protruding part, and the sealing ring (3) is at least partially clamped between the third protruding part of the first end face (11) and the third protruding part of the second end face (211) in interference.

2. The battery structural assembly of claim 1, wherein, the first protruding part (111) and the first recessed part (2111) are both arranged around the through hole; and / or, the second protruding part and the second recessed part are both arranged around the through hole; and / or, the third protruding part of the first end face (11) and the third protruding part of the second end face (211) are both arranged around the through hole.

3. The battery structural assembly of claim 2, wherein, the first protruding part (111) and the first recessed part (2111) are both coaxially arranged with the through hole; and / or, the second protruding part and the second recessed part are both coaxially arranged with the through hole; and / or, the third protruding part of the first end face (11) and the third protruding part of the second end face (211) are both coaxially arranged with the through hole.

4. The battery structural assembly of claim 1, wherein, the width of the first protruding part (111) ranges from 1mm to 1.5mm; and / or, the width of the first recessed part (2111) ranges from 1mm to 1.5mm; and / or, the width of the second protruding part ranges from 1mm to 1.5mm; and / or, the width of the second recessed part ranges from 1mm to 1.5mm; and / or, the width of the third protruding part ranges from 1mm to 1.5mm.

5. The battery structural assembly of claim 1, wherein, the ratio of the protruding height of the first protruding part (111) to the thickness of the sealing ring (3) after compression ranges from 20% to 35%; and / or, the ratio of the depth of the first recessed part (2111) to the thickness of the sealing ring (3) after compression ranges from 20% to 35%; and / or, the ratio of the protruding height of the second protruding part to the thickness of the sealing ring (3) after compression ranges from 20% to 35%; and / or, the ratio of the depth of the second recessed part to the thickness of the sealing ring (3) after compression ranges from 20% to 35%. And / or, the ratio of the protruding height of the third protruding part to the thickness of the sealing ring (3) after compression is 20%-35%.

6. The battery structural assembly of any one of claims 1-5, wherein, The first protruding part (111) is annular and coaxial, and a plurality of first protruding parts (111) are arranged at intervals. And / or, the first recessed part (2111) is annular and coaxial, and a plurality of first recessed parts (2111) are arranged at intervals. And / or, the second protruding part is annular and coaxial, and a plurality of second protruding parts are arranged at intervals. And / or, the second recessed part is annular and coaxial, and a plurality of second recessed parts are arranged at intervals. And / or, the third protruding part is annular and coaxial, and a plurality of third protruding parts are arranged at intervals.

7. The battery structural assembly of claim 6, wherein, The distance between the two adjacent edges of the adjacent first protruding part (111) is 0.5mm-1mm; and / or, the distance between the two adjacent edges of the adjacent first recessed part (2111) is 0.5mm-1mm. And / or, the distance between the two adjacent edges of the adjacent second protruding part is 0.5mm-1mm. And / or, the distance between the two adjacent edges of the adjacent second recessed part is 0.5mm-1mm. And / or, the distance between the two adjacent edges of the adjacent third protruding part is 0.5mm-1mm.

8. The battery structural assembly of any one of claims 1-5, wherein, The thickness of the sealing ring (3) in the uncompressed state is 1mm-1.2mm; and / or, the thickness of the sealing ring (3) in the compressed state is 0.7mm-0.75mm; and / or, the compression amount of the sealing ring (3) is 30%-35%.

9. The battery structural assembly of any one of claims 1-5, wherein, The sealing ring (3) is a circular ring, the first protruding part (111), the first recessed part (2111) are circular rings, and / or the second protruding part, the second recessed part are circular rings, and / or the third protruding part is a circular ring. Or, the sealing ring (3) is a square ring, the first protruding part (111), the first recessed part (2111) are square rings, and / or the second protruding part, the second recessed part are square rings, and / or the third protruding part is a square ring.

10. A battery characterized by The battery structure assembly comprises an electric core and a battery structure assembly according to any one of claims 1-9, and the electric core is located in the shell.

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