Battery cover plate

Abstract

The invention discloses a battery cover plate which comprises a detection assembly used for detecting the temperature and the pressure intensity of a battery main body, a fixing structure used for fixing the detection assembly, an annular sealing ring connected with the first bottom surface of the detection assembly, a cover plate used for being connected with the battery main body, and a preset groove formed in the cover plate, a preset hole is formed in the preset groove, and the detection assembly is communicated with the battery main body through the preset hole; the annular sealing ring is further connected with the fixing structure. With the adoption of the application, the problem that the internal air pressure of the battery cannot be actually tested after the battery liquid injection port is packaged can be solved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery cover. Background Art

[0002] The liquid filling port assembly is an important safety component on the battery. The liquid filling port assembly is used to seal the liquid filling port of the battery to prevent the electrolyte of the battery from being exposed. However, after the liquid filling port assembly seals the liquid filling port of the battery, then in the subsequent battery performance test process, it is impossible to actually test the internal air pressure of the battery body in real time, and it is also impossible to quantitatively analyze the internal air pressure value of the battery at different voltages in real time. Therefore, the safety monitoring mechanism of the battery is poor and the safety of the battery is low. Summary of the invention

[0003] In order to solve the above technical problems, the present application provides a battery cover, which can solve the problem that the internal air pressure of the battery body cannot be actually tested after the battery filling port is sealed. By real-time monitoring of the battery temperature and air pressure, it is possible to observe the various indicators of the battery during the battery capacity conversion process, thereby improving the safety of the battery.

[0004] In a first aspect, the present application provides a battery cover, comprising: a detection component for detecting the temperature and pressure of a battery body, a fixing structure for fixing the detection component, an annular sealing ring connected to a first bottom surface of the detection component, a cover for connecting the battery body, and a preset groove opened on the cover, wherein a preset hole is opened on the preset groove, and the detection component is connected to the battery body through the preset hole; The annular sealing ring is also connected to the fixed structure.

[0005] The annular sealing ring is used to prevent the battery body from leaking and to prevent external air from entering the battery body, thereby improving the airtightness of the battery body.

[0006] In an optional embodiment, the preset groove with a preset hole on the cover plate includes: a liquid filling port of the battery.

[0007] In an optional implementation, the shape of the detection component includes: a cylinder or a truncated cone.

[0008] In an optional embodiment, the fixed structure is a first annular base fixedly connected to the detection component; wherein the first annular base includes: a circular ring portion of the first annular base, a chassis of the first annular base, a first cavity formed by the enclosed space of the circular ring portion and the chassis, a target annular pit opened on the chassis, a target hole opened on the chassis, and one or more limiting bosses arranged on the circular ring portion; the first annular base is formed by an integral molding process; a preset hole is opened on the preset groove, including: a second hole is opened on the second groove; the target hole includes: a hole located in the enclosed area of ​​the target annular pit and opened on the chassis; the target annular pit includes: an annular pit with a ring shape opened on the chassis; The detection component is connected to the battery body through the target hole and the second hole; The annular sealing ring is placed in the target annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring; The chassis is connected to the cover plate by welding; The detection component is placed in the first cavity, and the limiting boss abuts against the second bottom surface of the detection component to fix the detection component.

[0009] In an optional embodiment, the fixing structure is an annular component that fixes the detection component; the fifth bottom surface of the annular component abuts against the second bottom surface of the detection component to fix the detection component; The preset groove includes: a first groove; the first groove includes: a first hole, a first side wall, and a first annular pit; wherein the first groove is formed by the cover plate based on a stamping process; wherein the first groove includes: a groove opened on the cover plate, the first hole includes: a hole opened on the first groove, the first side wall includes: a side wall formed by the first groove after the stamping process, and the first annular pit includes: an annular pit opened on the first groove; The preset groove is provided with a preset hole, including: a first hole is provided on the first groove; the detection component is connected with the battery body through the first hole; The second outer side surface of the annular component is welded to the first side wall of the first groove; the detection component includes: a first bottom surface; the annular sealing ring is placed in the first annular pit; the first bottom surface of the detection component is connected to the annular sealing ring; the annular component includes: a component in the shape of a three-dimensional circular ring; the second outer side surface of the annular component is: a side curved surface of the annular component facing away from the center position of the annular component.

[0010] In an optional implementation, the preset groove includes: a fourth groove; The fixing structure comprises: a hollow nut and a hollow screw; the hollow nut comprises: a first internal thread; the hollow screw comprises: a second side wall, a hole portion, a second annular base, a second cavity, an annular pit portion, and a first external thread; the second annular base is connected to the cover plate by welding; The annular sealing ring is placed in the annular concave portion, and the first bottom surface of the detection component is connected to the annular sealing ring; The preset groove is provided with a preset hole, including: the fourth groove is provided with a fourth hole; the detection component is connected with the battery body through the fourth hole and the hole portion; The detection component is placed in the cavity, and the hollow nut is screwed with the first internal thread of the hollow screw through the first external thread, so that the third bottom surface of the hollow nut abuts against the second bottom surface of the detection component to fix the above detection component.

[0011] Among them, the chassis and the cover plate are connected by welding to prevent the battery body from leaking, and it is also convenient for the fixing structure to be easily welded to the cover plate through the chassis at the bottom of the hollow screw; it should be noted that the chassis and the cover plate are connected by welding to prevent the battery body from leaking, and it is also convenient for the chassis at the bottom of the hollow screw to be easily welded to the cover plate.

[0012] In an optional embodiment, the preset groove includes: a fifth groove; the fifth groove includes: a fifth hole, a fifth side wall, and a fifth annular pit; the preset hole is provided on the preset groove, including: a fifth hole is provided on the fifth groove; the detection component is connected to the battery body through the fifth hole; wherein the fifth groove includes: a groove provided on the cover plate, the fifth hole includes: a hole provided on the fifth groove, the fifth side wall includes: a side wall formed by stamping of the fifth groove, and the fifth annular pit includes: an annular pit formed on the fifth side wall and having an annular shape; The fixing structure includes: a retaining spring; the retaining spring includes: an annular retaining spring in an annular shape or a polygonal retaining spring in a polygonal shape; When the retaining ring is an annular retaining ring, the annular sealing ring is placed in the fifth annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring; the side surface of the annular retaining ring is elastically connected to the fifth side wall, and the sixth bottom surface of the annular retaining ring abuts against the second bottom surface of the detection component to fix the detection component placed in the fifth groove.

[0013] In an optional embodiment, the preset groove includes: a sixth groove, the sixth groove includes: a sixth hole, a sixth side wall, and a sixth annular pit; the preset hole is opened on the preset groove, including: a sixth hole is opened on the sixth groove; the detection component is connected with the battery body through the sixth hole; wherein the sixth groove includes: a groove opened on the cover plate, the sixth hole includes: a hole opened on the sixth groove, the sixth side wall includes: a side wall formed by stamping the sixth groove, and the sixth annular pit includes: a pit with an annular shape formed on the sixth groove; The fixing structure comprises: a concave ring portion, wherein the concave ring portion is formed by stamping the sixth side wall; The annular sealing ring is placed in the sixth annular pit, and the first bottom surface of the detection component is connected to the upper surface of the annular sealing ring; The first edge surface of the concave ring portion abuts against the second bottom surface of the detection component to fix the detection component placed in the sixth groove.

[0014] In an optional embodiment, the preset groove includes: a seventh groove, the seventh groove includes: a seventh hole, a seventh sidewall, and a seventh annular pit; the preset hole is opened on the preset groove, including: the seventh hole is opened on the seventh groove; wherein the seventh groove includes: a groove opened on the cover plate, the seventh hole includes: a hole opened on the seventh groove, the seventh sidewall includes: a sidewall formed by stamping the seventh groove, and the seventh annular pit includes: a pit in the shape of an annulus formed on the seventh sidewall; The detection component is connected to the battery body through the seventh hole; The fixed structure comprises: a plurality of movable parts; the movable parts are formed by stamping the seventh side wall; The annular sealing ring is placed in the seventh annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring; The second edge surface of the movable portion abuts against the second bottom surface of the detection component to fix the detection component placed in the seventh groove.

[0015] In an optional embodiment, the preset groove includes: an eighth groove, the eighth groove includes: an eighth hole, an eighth side wall, and an eighth annular pit; wherein the eighth side wall is machined with a second internal thread; the preset groove is provided with a preset hole, including: the eighth groove is provided with an eighth hole; wherein the eighth groove includes: a groove provided on the cover plate, the eighth hole includes: a hole provided on the eighth groove, and the eighth side wall includes: a side wall formed by stamping of the eighth groove; The detection component is connected to the battery body through the eighth hole; The fixing structure comprises: a hollow screw portion, the outer side surface of the hollow screw portion is processed with a second external thread; The annular sealing ring is placed in the eighth annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring; The hollow screw portion is threadedly connected to the second internal thread on the eighth side wall via the second external thread, so that the fourth bottom surface of the hollow screw portion abuts against the second bottom surface of the detection component to fix the detection component placed in the eighth groove.

[0016] In an optional embodiment, the preset groove includes: a ninth groove, the ninth groove includes: a ninth hole, and a ninth side wall; the preset hole is provided on the preset groove, including: a ninth hole is provided on the ninth groove; the detection component is connected to the battery body through the ninth hole; wherein the ninth groove includes: a groove provided on the cover plate, the ninth hole includes: a hole provided on the ninth groove, and the ninth side wall includes: a side wall formed by stamping the ninth groove; The fixing structure comprises: a hollow aluminum tube, which is formed by stamping the front and rear ends of an aluminum tube whose center is hollow and whose cross section is a circular ring; the hollow aluminum tube comprises: a ninth annular pit and a tenth annular pit; the ninth outer side surface of the hollow aluminum tube is welded to the ninth side wall; the ninth outer side surface comprises: a curved surface on one side of the side wall of the hollow aluminum tube facing away from the center of the aluminum tube; The annular sealing ring is placed in the ninth annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring; A preset sealing ring is also placed in the tenth annular pit, and the second bottom surface of the detection component is connected to the preset sealing ring, wherein the preset sealing ring is an annular sealing ring; The annular sealing ring placed in the ninth annular pit and the preset sealing ring placed in the tenth annular pit are respectively in contact with the detection component to fix the detection component.

[0017] By adopting this implementation mode, the air tightness of the battery body is further improved through the use of a preset sealing ring, and it is also convenient to fix the hollow aluminum tube on the side wall.

[0018] In an optional embodiment, the preset groove includes: a tenth groove, the tenth groove includes: a tenth hole, and a tenth side wall; the preset groove is provided with a preset hole, including: the tenth groove is provided with a tenth hole; the detection component is connected with the battery body through the tenth hole; wherein the tenth groove includes: a groove provided on the cover plate, the tenth hole includes: a hole provided on the tenth groove; the tenth side wall includes: a side wall formed by the tenth groove through a stamping process; The fixing structure comprises: a first hollow structure, the first hollow structure comprises: a convex portion and a bent portion, wherein an eleventh annular pit is formed on the bent portion; the tenth side wall abuts against the bent portion, and the eleventh annular pit comprises: a pit in an annular shape formed on the bent portion; The annular sealing ring is placed in the eleventh annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring, the first end of the protrusion abuts against the second bottom surface of the detection component to fix the detection component placed in the tenth groove, and the second end of the protrusion is welded to the tenth side wall.

[0019] In an optional embodiment, the preset groove includes: a twelfth groove, the twelfth groove includes: a twelfth hole, a twelfth side wall, and a twelfth annular pit, wherein the twelfth side wall is machined with a third internal thread; the preset groove is provided with a preset hole, including: the twelfth hole is provided on the twelfth groove; the detection component is connected with the battery body through the twelfth hole; wherein the twelfth groove includes: a groove provided on the cover plate, the twelfth hole includes: a hole provided on the twelfth groove; the twelfth side wall includes: a side wall formed by stamping of the twelfth groove; the twelfth annular pit includes: a pit in the shape of an annulus formed on the twelfth groove; The fixing structure comprises: a second hollow structure, the second hollow structure comprises: an annular portion and a cavity portion, wherein the outer side surface of the cavity portion is processed with a third external thread; The annular sealing ring is placed in the twelfth annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring; The second hollow structure is threadedly connected to the third internal thread on the twelfth side wall via the third external thread, so that the annular portion of the second hollow structure abuts against the second bottom surface of the detection component to fix the detection component placed in the twelfth groove.

[0020] In an optional embodiment, the preset groove includes: a thirteenth groove, the thirteenth groove includes: a thirteenth hole, a thirteenth side wall, and a thirteenth annular pit; the preset hole is opened on the preset groove, including: the thirteenth hole is opened on the thirteenth groove; the detection component is connected with the battery body through the thirteenth hole; wherein the thirteenth groove includes: a groove opened on the cover plate, the thirteenth hole includes: a hole opened on the thirteenth groove; the thirteenth side wall includes: a side wall formed by stamping the thirteenth groove; the thirteenth annular pit includes: a pit with an annular shape formed on the thirteenth groove; The shape of the detection component is a cylinder; The fixing structure comprises: a third hollow structure, and the third hollow structure comprises: an inner ring portion and a welding portion; The annular sealing ring is placed in the thirteenth annular pit, and the first bottom surface of the detection component is connected to the annular sealing ring, the first ring portion abuts against the second bottom surface of the detection component to fix the detection component placed in the thirteenth groove, and the welding portion is welded to the cover plate.

[0021] In an optional embodiment, the hollow nut also includes a fourteenth annular pit, a preset sealing ring is also placed in the fourteenth annular pit, and the second bottom surface of the detection component is connected to the preset sealing ring, wherein the preset sealing ring is an annular sealing ring.

[0022] In an optional embodiment, the inner side surface of the fixing structure is provided with one or more first limiting protrusions, the first outer side surface of the detection component is provided with one or more first limiting grooves, the first limiting protrusions are connected to the first limiting grooves by mortise and tenon, and the first limiting protrusions correspond to the first limiting grooves one by one; or, One or more second limiting grooves are arranged on the inner side surface of the fixing structure, and one or more second limiting protrusions are arranged on the first outer side surface of the detection component. The second limiting protrusions are connected with the second limiting grooves by mortise and tenon joints, and the second limiting protrusions correspond to the second limiting grooves one by one.

[0023] In an optional implementation, the first outer side surface of the detection component is connected to the inner side surface of the fixing structure by gluing.

[0024] The present application discloses a battery cover, comprising: a detection component for detecting the temperature and pressure of a battery body, a fixing structure for fixing the detection component, an annular sealing ring connected to the bottom surface of the detection component, a cover for connecting the battery body, and a preset groove opened on the cover, wherein a preset hole is opened on the preset groove, and the detection component is connected to the battery body through the preset hole; the annular sealing ring is also connected to the fixing structure.

[0025] By adopting the present application, the problem that the internal air pressure of the battery cannot be actually tested after the battery filling port is sealed can be solved. That is, by real-time monitoring of the temperature and air pressure of the battery, the various indicators of the battery during the battery dissolution process can be observed, thereby improving the safety of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 It is a structural schematic diagram of a battery cover provided by the present application; Figure 2 is a schematic diagram of an exploded structure of a battery cover provided in the present application; Figure 3 It is a structural schematic diagram of a first annular base 21 provided by the present application on which a detection component 11 is placed; Figure 4 is a structural schematic diagram of a first annular base 21 provided in the present application; Figure 5 It is a structural schematic diagram of another battery cover provided by the present application; Figure 6 is a schematic diagram of an exploded structure of another battery cover provided by the present application; Figure 7 It is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Figure 8 is a schematic diagram of an exploded structure of another battery cover provided in the present application; Fig. 9 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig.10 is a schematic diagram of an exploded structure of another battery cover provided in the present application; Fig.11 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig.12 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig.13 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig.14 is a schematic diagram of an exploded structure of another battery cover provided in the present application; Fig.15 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig.16 is a schematic diagram of an exploded structure of another battery cover provided in the present application; Fig.17 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig.18is a schematic diagram of an exploded structure of another battery cover provided in the present application; Fig.19 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig. 20 is a schematic diagram of an exploded structure of another battery cover provided in the present application; Fig.21 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Fig. 22 is a schematic diagram of an exploded structure of another battery cover provided in the present application; Fig.23 This is a schematic diagram of the cross-sectional structure of another battery cover provided by the present application; Among them, 10-cover plate, 11-detection component, 111-first bottom surface, 113-second bottom surface, 112-first outer side surface, 12-annular sealing ring, 13-first groove, 131-first hole, 133-first annular pit, 134-first side wall, 14-battery body, 15-annular component, 152-fifth bottom surface, 151-second outer side surface, 16-negative electrode, 17-positive electrode, 21-first annular base, 211-circular ring, 212-chassis, 213-first cavity, 214-target annular pit, 215-target hole, 216-limiting boss, 2111-first inner side surface, 23-second groove, 43-fourth groove, 33-hollow nut, 31-hollow screw, 332 -first internal thread, 333-third bottom surface, 310-second side wall, 311-hole portion, 312-second annular base, 313-second cavity, 314-annular recess portion, 315-first external thread, 316-second inner side surface, 331-fourteenth annular recess, 53-fifth groove, 531-fifth hole, 532-fifth side wall, 533-fifth annular recess, 5321-third inner side surface, 41-annular retaining ring, 63-sixth groove, 631-sixth hole, 632-sixth side wall, 633-sixth annular recess, 61-recessed ring portion, 611-first edge surface, 6321-fourth inner side surface, 73-seventh groove, 731-seventh hole, 732-seventh side wall, 733-first Seven annular pits, 71-movable part, 711-second edge surface, 7321-fifth inner side surface, 83-eighth groove, 831-eighth hole, 832-eighth side wall, 833-eighth annular pit, 834-second internal thread, 81-hollow screw part, 811-second external thread, 812-fourth bottom surface, 93-ninth groove, 931-ninth hole, 932-ninth side wall, 91-hollow aluminum tube, 92-preset sealing ring, 911-ninth annular pit, 912-tenth annular pit, 913-ninth outer side surface, 914-ninth inner side surface, 102-tenth groove, 1021-tenth hole, 1022-tenth side wall, 101-first hollow structure, 1011-protruding part, 1012 -bending portion, 10111-first end portion, 10112-second end portion, 10121-eleventh annular recess, 1013-tenth inner side surface, 122-twelfth groove, 121-second hollow structure, 1211-cavity portion, 1212-annular portion, 1221-twelfth hole, 1222-twelfth side wall, 1223-twelfth annular recess, 12111-third external thread, 12221-third internal thread, 132-thirteenth groove, 1321-thirteenth hole, 1322-thirteenth side wall, 1323-thirteenth annular recess, 1314-third hollow structure, 1311-first ring portion, 1312-welding portion, 1313-second ring portion, 13131-sixth inner side surface. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in this application to clearly and completely describe the technical solutions in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] It should be noted that the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth and thirteenth in this application are only used to distinguish different structural parts in this application and have no other special meanings and should not limit the scope of protection of this application.

[0030] In combination with the drawings in the present application, the present application provides a battery cover, including: A detection assembly 11 for detecting the temperature and pressure of a battery body 14, a fixing structure for fixing the detection assembly 11, an annular sealing ring 12 connected to a first bottom surface 111 of the detection assembly 11, a cover plate 10 for connecting the battery body 14, and a preset groove provided on the cover plate 10, wherein a preset hole is provided on the preset groove, and the detection assembly 11 is connected to the battery body 14 through the preset hole; the annular sealing ring 12 is also connected to the fixing structure, and the annular sealing ring 12 is used to prevent the battery body 14 from leaking and prevent external air from entering the battery body 14, thereby improving the air tightness of the battery body 14. It should be noted that the battery cover plate may also include: a positive electrode 17 and a negative electrode 16.

[0031] By adopting the above-mentioned battery cover, the temperature and pressure of the battery body 14 can be detected.

[0032] Preferably, the inner side surface of the fixing structure is provided with one or more first limiting protrusions, the first outer side surface 112 of the detection component 11 is provided with one or more first limiting grooves, the first limiting protrusions are connected to the first limiting grooves by mortise and tenon joints, and the first limiting protrusions correspond to the first limiting grooves one by one; or, The inner side surface of the fixing structure is provided with one or more second limiting grooves, and the first outer side surface 112 of the detection component 11 is provided with one or more second limiting protrusions, the second limiting protrusions are connected to the second limiting grooves by mortise and tenon joints, and the second limiting protrusions correspond to the second limiting grooves one by one. Optionally, the first outer side surface 112 of the detection component 11 can be: a curved surface of the detection component 11 facing the outside.

[0033] Preferably, the preset groove with a preset hole on the cover plate 10 includes: a liquid filling port of the battery.

[0034] Preferably, the shape of the detection component 11 may include but is not limited to: a cylinder or a truncated cone.

[0035] Preferably, the first outer side surface 112 of the detection component 11 is connected to the inner side surface of the fixing structure by gluing.

[0036] It should be noted that the inner side surface of the fixed structure may be: a side surface of the fixed structure facing the side wall of the detection component 11 placed in the fixed structure.

[0037] Embodiment 1

[0038] Figure 1 is a structural schematic diagram of a battery cover provided by this application, Figure 2 This is a schematic diagram of the explosion structure of a battery cover. Figure 3 1 is a schematic diagram of a structure of a first annular base 21 on which a detection component 11 is placed. Figure 4 1 is a schematic structural diagram of a first annular base 21 provided.

[0039] Combination Figure 1-4 , the structure of a battery cover provided in the first embodiment is described in detail. Specifically, The fixed structure is a first annular base 21 fixedly connected to the detection component 11; wherein, the first annular base 21 may include but is not limited to: a circular ring portion 211 of the first annular base 21, a chassis 212 of the first annular base 21, a first cavity 213 formed by the enclosed space of the circular ring portion 211 and the chassis 212, a target annular pit 214 opened on the chassis 212, a target hole 215 opened on the chassis 212, and one or more limiting bosses 216 arranged on the circular ring portion 211; wherein, the target hole 215 may be: a hole located in the enclosed area of ​​the target annular pit 214 and opened on the chassis 212, and the target annular pit 214 may be: an annular pit with a ring shape opened on the chassis 212; the first annular base 21 may be formed by an integrated molding process.

[0040] The preset groove is provided with a preset hole, which may include: the second groove 23 is provided with a second hole.

[0041] The battery cover in the first embodiment may include but is not limited to: a detection component 11 for detecting the temperature and pressure of the battery body 14, a first annular base 21 for fixing the detection component 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection component 11, a cover 10, and a second groove 23 with a second hole; wherein, The detection component 11 is connected to the battery body 14 through the target hole 215 and the second hole; The annular sealing ring 12 is placed in the target annular pit 214, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12, wherein the annular sealing ring 12 can be a sealing ring in an annular shape; The chassis 212 is connected to the cover plate 10 by welding; The detection component 11 is placed in the first cavity 213 , and the limiting boss 216 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 .

[0042] Preferably, the first outer side surface 112 of the detection component 11 is connected to the first inner side surface 2111 of the annular portion 211 by gluing, so as to further prevent air leakage of the battery body 14 and maintain the air tightness of the battery body 14. The first inner side surface 2111 of the annular portion 211 may be a curved surface facing the detection component 11 placed in the first cavity 213.

[0043] Preferably, one or more first limiting protrusions are provided on the first inner side surface 2111 of the annular portion 211 of the first annular base 21, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the first limiting groove can also be used as a channel for injection molding glue, and optionally, the position of the limiting protrusion and the setting position of the limiting groove can be interchanged, that is, one or more second limiting grooves can be provided on the first inner side surface 2111 of the annular portion 211, and one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and one or more second limiting protrusions are provided on the first inner side surface 2111 of the annular portion 211, and the second limiting protrusion is connected to the second limiting protrusion provided on the first outer side surface 112 of the detection component 11 by mortise and tenon, and the second limiting protrusion corresponds to the second limiting groove one by one.

[0044] The detection component 11 is also provided with a communication module for sending the detected temperature and pressure of the battery body 14 to the battery management device for determining whether the temperature and pressure are abnormal.

[0045] The battery management device is used to determine in real time whether the temperature and air pressure data are abnormal. If the data is abnormal, the battery management device is also used to issue an early warning and control the disconnection of the connection circuit of the battery body 14.

[0046] Specifically, the battery management device is specifically used to: in response to receiving the temperature and air pressure data from the detection component 11, determine in real time whether the temperature is within a first safety threshold range, and determine whether the air pressure is within a second safety threshold range; If the temperature is not within the first safety threshold range, the temperature is judged to be abnormal, and a first alarm message is output and the connection circuit of the battery body 14 is cut off by bypass control; or, If the air pressure is not within the second safety threshold range, the air pressure is judged to be abnormal, a second alarm message is output, and the connection circuit of the battery body 14 is cut off by bypass control; The battery management device is also specifically used to: flash and / or highlight the abnormal temperature and air pressure of the battery body 14 in real time, and emit an alarm sound to indicate that the battery body 14 is abnormal.

[0047] Regarding the first embodiment, the steps of fixing the detection component 11 may include but are not limited to: The annular sealing ring 12 is placed in the target annular pit 214, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; the detection component 11 is placed in the first cavity 213; the limiting boss 216 is abutted against the second bottom surface 113 of the detection component 11 to fix the above-mentioned detection component 11; and then the edge portion of the chassis 212 is welded to the cover plate 10.

[0048] Embodiment 2

[0049] Figure 5 is a schematic diagram of the structure of another battery cover provided by the present application, Figure 6 This is a schematic diagram of another exploded structure of a battery cover. Figure 7 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0050] Combination Figure 5-7 , the structure of another battery cover provided in the second embodiment is described in detail. Specifically, The fixing structure is an annular component 15 for fixing the detection component 11; the fifth bottom surface 152 of the annular component 15 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11; the annular component 15 can be a circular ring with a hollow center, wherein the fifth bottom surface 152 can be a bottom surface of the annular component 15.

[0051] The preset groove includes: a first groove 13; the first groove 13 may include but is not limited to: a first annular pit 133, a first side wall 134, and a first hole 131; wherein the second outer side surface 151 of the annular component 15 is welded to the first side wall 134 of the first groove 13; wherein the first groove 13 may be a groove opened on the cover plate 10, the first hole 131 may be: a hole opened on the first groove 13, the first side wall 134 may be: a side wall formed by the first groove 13 after the stamping process, and the first annular pit 133 may be: a ring opened on the first groove 13 shaped pit; that is, the battery cover in the second embodiment may include but is not limited to: a detection component 11 for detecting the temperature and pressure of the battery body 14, a ring-shaped component 15 for fixing the detection component 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection component 11, a cover 10, and a first groove 13 for placing the annular component 15; wherein the first groove 13 can be formed by the cover 10 based on a stamping process; wherein the annular component 15 includes: a component in the shape of a three-dimensional circular ring; the second outer side surface 151 can be: a side curved surface at the center position of the circular ring facing away from the annular component 15.

[0052] The annular sealing ring 12 is placed in the first annular pit 133 , and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12 ; the function of the annular sealing ring 12 will not be described in detail here.

[0053] The preset groove is provided with preset holes, including: the first groove 13 is provided with a first hole 131 , wherein the detection component 11 is connected with the battery body 14 through the first hole 131 .

[0054] Preferably, the first outer side surface 112 of the detection component 11 is connected or bonded to the inner side surface of the annular component 15 by gluing, and the inner side surface of the annular component 15 may be: a curved surface facing the center position of the annular component 15 .

[0055] Preferably, one or more first limiting protrusions are provided on the inner side surface of the first side wall 134, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon, wherein the first limiting protrusion corresponds to the limiting groove one by one. Optionally, the position of the limiting protrusion and the setting position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the inner side surface of the first side wall 134, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon. Wherein, the inner side surface of the first side wall 134 can be: a side surface of the first side wall 134 facing the detection component 11 placed in the first groove 13.

[0056] Regarding the second embodiment, the steps of fixing the detection component 11 may include but are not limited to: The annular sealing ring 12 is placed in the first annular pit 133, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; the detection component 11 is placed in the first groove 13; the annular component 15 is then installed so that the fifth bottom surface 152 of the annular component 15 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11; the second outer side surface 151 of the annular component 15 is welded to the first side wall 134 of the first groove 13 to further maintain the airtightness of the battery body 14, and is also used to fix the annular component 15.

[0057] Embodiment 3

[0058] Figure 8 This is another exploded structural diagram of a battery cover provided by the present application. Fig. 9 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0059] Combination Figure 8-9 , the structure of another battery cover provided in the third embodiment is described in detail. Specifically, The preset groove may include: a fourth groove 43; The fixing structure may include but is not limited to: a hollow nut 33 and a hollow screw 31; wherein the hollow nut 33 includes: a first internal thread 332; the hollow screw 31 may include but is not limited to: a second side wall 310, a hole portion 311, a second annular base 312, a second cavity 313, an annular recess portion 314, and a first external thread 315; Among them, the second cavity 313 can be formed by the space enclosed by the second annular base 312, and the annular pit portion 314 is formed on the second annular base 312; the hole portion 311 is located at the center of the hollow screw 31; the second side wall 310 is the side wall of the hollow screw 31, and the first external thread 315 is: a thread on the outer side surface of the second side wall 310 facing away from the second cavity 313; wherein, the outer side surface of the second side wall 310 can be: a side surface of the second side wall 310 facing away from the second cavity 313, and the second annular base 312 is connected to the cover plate 10 by welding; to prevent the battery body 14 from leaking, it is also convenient for the fixing structure to be easily welded to the cover plate 10 through the second annular base 312 at the lower part of the hollow screw 31.

[0060] In addition, the hollow nut 33 may include but is not limited to: a nut with a hollow center; the hollow nut 33 may include but is not limited to: a cavity in which the hollow screw rod 31 can be placed, the cavity of the hollow nut 33 may be formed by a curved side wall and a third bottom surface 333, and the first internal thread 332 may be: a thread on the curved side wall of the cavity facing the hollow nut 33.

[0061] The battery cover in the third embodiment may include but is not limited to: a detection component 11 for detecting the temperature and pressure of the battery body 14, a hollow nut 33 and a hollow screw 31 for fixing the detection component 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection component 11, a cover 10, and a fourth groove 43; wherein, the second annular base 312 is connected to the cover 10 by welding to prevent the battery body 14 from leaking, and it is also convenient for the fixing structure to be easily welded to the cover 10 through the second annular base 312 at the lower part of the hollow screw 31; it should be noted that the second annular base 312 is connected to the cover 10 by welding to prevent the battery body 14 from leaking, and it is also convenient for the second annular base 312 at the lower part of the hollow screw 31 to be easily welded to the cover 10.

[0062] The annular sealing ring 12 is placed in the annular recessed portion 314 , and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12 , wherein the annular recessed portion 314 is an annular recessed portion formed on the hollow screw 31 .

[0063] The second annular base 312 is connected to the cover plate 10 by welding, so that the second annular base 312 can be welded to the cover plate 10 .

[0064] The detection component 11 is placed in the second cavity 313 , and the hollow nut 33 is screwed to the first internal thread 332 of the hollow screw rod 31 through the first external thread 315 , so that the third bottom surface 333 of the hollow nut 33 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 .

[0065] The annular sealing ring 12 is placed in the annular concave portion 314, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; the preset groove is provided with a preset hole, which may include: the fourth groove 43 is provided with a fourth hole; the detection component 11 is connected to the battery body 14 through the fourth hole and the hole portion 311; Preferably, the first outer side surface 112 of the detection component 11 is connected or bonded to the second inner side surface 316 of the second side wall 310 of the hollow screw 31 by gluing, and the second inner side surface 316 of the second side wall 310 faces the second cavity 313. The second inner side surface 316 of the second side wall 310 is: a side surface of the second side wall 310 facing the second cavity 313 (or the center position of the second cavity 313).

[0066] Preferably, one or more first limiting protrusions are provided on the second inner side surface 316 of the hollow screw 31, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon joints, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the setting position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the second inner side surface 316 of the hollow screw 31, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon joints.

[0067] Preferably, the hollow nut 33 may also include a fourteenth annular pit 331, wherein a preset sealing ring 92 is also placed in the fourteenth annular pit 331, and the second bottom surface 113 of the detection component 11 is connected to the preset sealing ring 92, which can further maintain the airtightness of the battery body 14, wherein the preset sealing ring 92 is an annular sealing ring, wherein the fourteenth annular pit 331 is: a pit in the shape of an annulus formed on the hollow nut 33.

[0068] Regarding the steps of fixing the detection component 11 in the third embodiment, the steps may include but are not limited to: The annular sealing ring 12 is placed in the annular recessed portion 314, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; the detection component 11 is placed in the second cavity 313 of the hollow screw 31; the hollow nut 33 is screwed to the first internal thread 332 of the hollow screw 31 through the first external thread 315, so that the third bottom surface 333 of the hollow nut 33 abuts against the second bottom surface 113 of the detection component 11 to fix the above-mentioned detection component 11; the second annular base 312 is welded to the cover plate 10 to further maintain the airtightness of the battery body 14, and is also used to fix the hollow screw 31.

[0069] Embodiment 4

[0070] Fig.10 This is another exploded structural diagram of a battery cover provided by the present application. Fig.11 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0071] Combination Figure 10-11 , the structure of another battery cover provided in the fourth embodiment is described in detail. Specifically, The preset groove includes: a fifth groove 53; the fifth groove 53 may include but is not limited to: a fifth hole 531, a fifth side wall 532, and a fifth annular pit 533; a preset hole is opened on the preset groove, which may include: a fifth hole 531 is opened on the fifth groove 53; the detection component 11 is connected to the battery body 14 through the fifth hole 531; wherein the fifth groove 53 is a groove opened on the cover plate 10, the fifth hole 531 may be a hole opened on the fifth groove 53, the fifth side wall 532 may be a side wall formed by stamping the fifth groove 53, and the fifth annular pit 533 may be: an annular pit in the shape of an annulus formed on the fifth side wall 532; the fixing structure may include: a retaining spring; the retaining spring may include but is not limited to: an annular retaining spring 41 in the shape of an annulus or a polygonal retaining spring in the shape of a polygon; wherein the polygonal retaining spring in the shape of a polygon may include but is not limited to any of the following: a polygonal retaining spring in the shape of a regular hexagon or a polygonal retaining spring in the shape of a pentagon.

[0072] When the aforementioned retaining ring is an annular retaining ring 41, the battery cover in the fourth embodiment may include but is not limited to: a detection component 11 for detecting the temperature and pressure of the battery body 14, an annular retaining ring 41 for fixing the detection component 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection component 11, a cover 10, and a fifth groove 53.

[0073] Among them, the annular sealing ring 12 is placed in the fifth annular pit 533, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; the side of the annular retaining ring 41 is elastically connected to the fifth side wall 532, and the sixth bottom surface of the annular retaining ring 41 is abutted against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the fifth groove 53, wherein the sixth bottom surface is: a bottom surface of the annular retaining ring 41 facing the detection component 11 placed in the fifth groove 53.

[0074] Preferably, the first outer side surface 112 of the detection component 11 and the fifth side wall 532 of the fifth groove 53 are connected or bonded by gluing.

[0075] Preferably, one or more first limiting protrusions are provided on the third inner side surface 5321 of the fifth side wall 532, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the setting position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the third inner side surface 5321 of the fifth side wall 532, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon. Wherein, the third inner side surface 5321 can be: a side of the fifth side wall 532 facing the detection component 11 placed in the fifth groove 53.

[0076] Regarding the fourth embodiment, the steps of fixing the detection component 11 may include but are not limited to: Place the annular sealing ring 12 in the fifth annular pit 533 of the stamped fifth groove 53; place the detection component 11 in the fifth groove 53; and then place the annular retaining spring 41 so that the side surface of the annular retaining spring 41 is elastically connected to the fifth side wall 532, and the sixth bottom surface of the annular retaining spring 41 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the fifth groove 53.

[0077] Embodiment 5

[0078] Fig.12 It is a schematic diagram of the cross-sectional structure of another battery cover provided in the present application.

[0079] Combination Fig.12 , the structure of another battery cover provided in the fifth embodiment is described in detail. Specifically, The preset groove includes: a sixth groove 63, and the sixth groove 63 may include but is not limited to: a sixth hole 631, a sixth side wall 632, and a sixth annular pit 633; ​​the detection component 11 is connected to the battery body 14 through the sixth hole 631; a preset hole is opened on the preset groove, which may include: a sixth hole 631 is opened on the sixth groove 63; wherein the sixth groove 63 may be a groove opened on the cover plate 10, the sixth hole 631 may be a hole opened on the sixth groove 63, the sixth side wall 632 may be: a side wall formed by stamping the sixth groove 63, and the sixth annular pit 633 may be: a pit in the shape of an annulus formed on the sixth groove 63.

[0080] The fixing structure includes: a concave ring portion 61, wherein the concave ring portion 61 is formed by stamping the sixth side wall 632; The battery cover in the fifth embodiment may include but is not limited to: a detection component 11 for detecting the temperature and pressure of the battery body 14, a concave ring portion 61 for fixing the detection component 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection component 11, a cover 10, and a sixth groove 63 for placing the detection component 11; wherein, The annular sealing ring 12 is placed in the sixth annular pit 633 , and the first bottom surface 111 of the detection component 11 is connected to the upper surface of the annular sealing ring 12 ; The first edge surface 611 of the concave ring portion 61 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the sixth groove 63 . The first edge surface 611 may be a curved surface of the concave ring portion 61 facing the second bottom surface 113 .

[0081] Preferably, the first outer side surface 112 of the detection component 11 is connected or bonded to the fourth inner side surface 6321 of the sixth side wall 632 of the sixth groove 63 by gluing. The fourth inner side surface 6321 may be: a side surface facing the sixth side wall 632 of the detection component 11 placed in the sixth groove 63; Preferably, one or more first limiting protrusions are provided on the fourth inner side surface 6321 of the sixth side wall 632, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the setting position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the fourth inner side surface 6321 of the sixth side wall 632, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon.

[0082] Regarding the fifth embodiment, the steps of fixing the detection component 11 may include but are not limited to: Place the annular sealing ring 12 in the sixth annular pit 633 of the stamped sixth groove 63; place the detection component 11 in the sixth groove 63; form the concave ring portion 61 by stamping the sixth side wall 632; abut the first edge surface 611 of the concave ring portion 61 against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the sixth groove 63.

[0083] Embodiment 6

[0084] Fig.13 It is a schematic diagram of the cross-sectional structure of another battery cover provided in the present application.

[0085] Combination Fig.13, the structure of another battery cover provided in the sixth embodiment is described in detail. Specifically, The preset groove includes: a seventh groove 73, which may include but is not limited to: a seventh hole 731, a seventh side wall 732, and a seventh annular pit 733; the detection component 11 is connected to the battery body 14 through the seventh hole 731; a preset hole is opened on the preset groove, which may include: a seventh hole 731 is opened on the seventh groove 73; wherein the seventh groove 73 may be: a groove opened on the cover plate 10, the seventh hole 731 may be a hole opened on the seventh groove 73, the seventh side wall 732 may be a side wall formed by stamping the seventh groove 73, and the seventh annular pit 733 may be: a pit in the shape of an annulus formed on the seventh side wall 732.

[0086] The fixed structure includes: a plurality of movable parts 71; the movable part 71 is formed by stamping the seventh side wall 732; the movable part 71 can be movably bent so that the second edge surface 711 of the movable part 71 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the seventh groove 73; the second edge surface 711 can be: a side curved surface of the movable part 71 facing the second bottom surface 113.

[0087] The battery cover in the sixth embodiment may include but is not limited to: a detection assembly 11 for detecting the temperature and pressure of the battery body 14, a plurality of movable parts 71 for fixing the detection assembly 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection assembly 11, a cover 10, and a seventh groove 73 for placing the detection assembly 11; wherein, The annular sealing ring 12 is placed in the seventh annular pit 733 , and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12 ; The second edge surface 711 of the movable portion 71 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the seventh groove 73 .

[0088] Preferably, the first outer side surface 112 of the detection component 11 is connected or bonded to the fifth inner side surface 7321 of the seventh side wall 732 of the seventh groove 73 by gluing. The fifth inner side surface 7321 is: a side surface facing the seventh side wall 732 of the detection component 11 placed in the seventh groove 73.

[0089] Preferably, one or more first limiting protrusions are provided on the fifth inner side surface 7321 of the seventh side wall 732, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected with the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon joints, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the setting position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the fifth inner side surface 7321 of the seventh side wall 732, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11.

[0090] Regarding the sixth embodiment, the installation steps of the detection component 11 may include but are not limited to: The annular sealing ring 12 is placed in the seventh annular recess 733 formed by machine tool processing. The detection component 11 is placed in the seventh groove 73 after being stamped through the cover plate 10; a plurality of movable parts 71 are formed after stamping the cover plate 10, and then the movable parts 71 are bent so that the second edge surface 711 of the movable part 71 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the seventh groove 73.

[0091] Embodiment 7

[0092] Fig.14 This is another exploded structural diagram of a battery cover provided by the present application. Fig.15 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0093] Combination Figure 14-15 , the structure of another battery cover provided in this embodiment 7 is described in detail. Specifically, The preset groove includes: an eighth groove 83, wherein the eighth groove 83 may include but is not limited to: an eighth hole 831, an eighth side wall 832, and an eighth annular pit 833; wherein the inner side surface of the eighth side wall 832 is machined with a second internal thread 834; the detection component 11 is connected to the battery body 14 through the eighth hole 831; a preset hole is opened on the preset groove, which may include: an eighth hole 831 is opened on the eighth groove 83; wherein the eighth groove 83 may be: a groove opened on the cover plate 10, the eighth hole 831 may be a hole opened on the eighth groove 83, and the eighth side wall 832 may be a side wall formed by stamping the eighth groove 83.

[0094] The inner side surface of the eighth side wall 832 may be: a side surface of the eighth side wall 832 facing the detection component 11 placed in the eighth groove 83, and the second internal thread 834 is: a thread on the inner side surface of the eighth side wall 832; The fixing structure includes: a hollow screw portion 81, the outer side of the hollow screw portion 81 is processed with a second external thread 811; the hollow screw portion 81 may include: a hollow annular component at the center of the component, The outer side surface of the hollow screw portion 81 is: a curved surface of a side wall of the hollow screw portion 81 facing away from the center of the hollow screw portion 81 .

[0095] The battery cover in the seventh embodiment may include but is not limited to: a detection assembly 11 for detecting the temperature and pressure of the battery body 14, a hollow screw portion 81 for fixing the detection assembly 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection assembly 11, a cover 10, and an eighth groove 83 for placing the detection assembly 11; wherein, The annular sealing ring 12 is placed in the eighth annular pit 833 , and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12 ; The hollow screw portion 81 is threadedly connected to the second internal thread 834 on the eighth side wall 832 via the second external thread 811, so that the fourth bottom surface 812 of the hollow screw portion 81 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the eighth groove 83, wherein the fourth bottom surface 812 of the hollow screw portion 81 can be a side surface of the hollow screw portion 81 facing the second bottom surface 113 of the detection component 11 placed in the eighth groove 83.

[0096] Preferably, the first outer side surface 112 of the detection component 11 and the second internal thread 834 of the eighth side wall 832 of the eighth groove 83 are connected or bonded by gluing.

[0097] Preferably, one or more first limiting protrusions are provided on the inner side surface of the eighth side wall 832, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon joints, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the setting position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the inner side surface of the eighth side wall 832, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon joints.

[0098] Regarding the seventh embodiment, the installation steps of the detection assembly 11 and the hollow screw portion 81 may include but are not limited to: The annular sealing ring 12 is placed in the eighth annular pit 833, and the detection component 11 is placed, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; the hollow screw portion 81 is installed, and the second external thread 811 is screwed with the second internal thread 834 on the eighth side wall 832, so that the fourth bottom surface 812 of the hollow screw portion 81 is abutted against the second bottom surface 113 of the detection component 11, so as to fix the detection component 11 placed in the eighth groove 83.

[0099] Embodiment 8

[0100] Fig.16 This is another exploded structural diagram of a battery cover provided by the present application. Fig.17 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0101] Combination Figure 16-17 , the structure of another battery cover provided in this embodiment 8 is described in detail. Specifically, The preset groove includes: a ninth groove 93, and the ninth groove 93 may include but is not limited to: a ninth hole 931 and a ninth side wall 932; a preset hole is opened on the preset groove, including: a ninth hole 931 is opened on the ninth groove 93; the detection component 11 is connected to the battery body 14 through the ninth hole 931; the ninth groove 93 may be: a groove opened on the cover plate 10, the ninth hole 931 may be: a hole opened on the ninth groove 93, and the ninth side wall 932 may be: a side wall formed by stamping the ninth groove 93.

[0102] The fixed structure includes: a hollow aluminum tube 91, which is formed by stamping the front and rear ends of an aluminum tube whose center is hollow and whose cross section is a circular ring; the hollow aluminum tube 91 includes: a ninth annular pit 911 and a tenth annular pit 912; the ninth outer side surface 913 of the hollow aluminum tube 91 is welded to the ninth side wall 932; wherein, the ninth annular pit 911 is: a pit with an annular shape formed on the first end 10111 of the hollow aluminum tube 91, and the tenth annular pit 912 is: a pit with an annular shape formed on the second end 10112 of the hollow aluminum tube 91; the ninth outer side surface 913 is: a side curved surface of the side wall of the hollow aluminum tube 91 facing away from the center of the aluminum tube, the ninth annular pit 911 can be an annular pit with an annular shape, and the tenth annular pit 912 can be an annular pit with an annular shape.

[0103] The battery cover in the eighth embodiment may include but is not limited to: a detection assembly 11 for detecting the temperature and pressure of the battery body 14, a hollow aluminum tube 91 for fixing the detection assembly 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection assembly 11 and a preset sealing ring 92 connected to the second bottom surface 113 of the detection assembly 11, a cover 10, and a ninth groove 93 for placing the hollow aluminum tube 91; wherein, The annular sealing ring 12 is placed in the ninth annular pit 911 , and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12 ; A preset sealing ring 92 is placed in the tenth annular pit 912, and the second bottom surface 113 of the detection component 11 is connected to the preset sealing ring 92, wherein the preset sealing ring 92 may be a sealing ring in an annular shape; The annular sealing ring 12 placed in the ninth annular pit 911 and the preset sealing ring 92 placed in the tenth annular pit 912 respectively abut against the detection component 11 to fix the detection component 11.

[0104] Preferably, the first outer side surface 112 of the detection component 11 is connected or bonded to the ninth inner side surface 914 of the hollow aluminum tube 91 by gluing or bonding, and the ninth inner side surface 914 is: a curved surface on one side of the side wall of the hollow aluminum tube 91 facing the center position of the aluminum tube.

[0105] Preferably, one or more first limiting protrusions are provided on the ninth inner side surface 914 of the hollow aluminum tube 91, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon joints, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the ninth inner side surface 914 of the hollow aluminum tube 91, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon joints.

[0106] Regarding the eighth embodiment, the installation steps of the detection assembly 11 and the hollow aluminum tube 91 may include but are not limited to: Place the annular sealing ring 12 in the ninth annular pit 911; place the detection component 11 in the hollow aluminum tube 91, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; continue to place the preset sealing ring 92 in the tenth annular pit 912, so that the annular sealing ring 12 placed in the ninth annular pit 911 and the preset sealing ring 92 placed in the tenth annular pit 912 are respectively abutted against the detection component 11 to fix the detection component 11, thereby further improving the airtightness of the battery body 14; place the hollow aluminum tube 91 in the ninth groove 93, and weld the ninth outer side surface 913 of the hollow aluminum tube 91 to the ninth side wall 932, so as to facilitate fixing the hollow aluminum tube 91 on the ninth side wall 932.

[0107] Embodiment 9

[0108] Fig.18 This is another exploded structural diagram of a battery cover provided by the present application. Fig.19 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0109] Combination Figure 18-19 , the structure of another battery cover provided in the ninth embodiment is described in detail. Specifically, The preset groove includes: a tenth groove 102, the tenth groove 102 includes: a tenth hole 1021, and a tenth side wall 1022; a preset hole is opened on the preset groove, including: a tenth hole 1021 is opened on the tenth groove 102; the detection component 11 is connected to the battery body 14 through the tenth hole 1021; wherein the tenth groove 102 is a groove opened on the cover plate 10, and the tenth hole 1021 is a hole opened on the tenth groove 102; the tenth side wall 1022 is a side wall formed by the tenth groove 102 through a stamping process.

[0110] The fixed structure includes: a first hollow structure 101, the first hollow structure 101 includes: a protrusion 1011 and a bending portion 1012, wherein an eleventh annular pit 10121 is formed on the bending portion 1012; the tenth side wall 1022 abuts against the bending portion 1012; wherein the eleventh annular pit 10121 is: a pit in the shape of an annulus formed on the bending portion 1012.

[0111] The battery cover in the ninth embodiment may include but is not limited to: a detection assembly 11 for detecting the temperature and pressure of the battery body 14, a first hollow structure 101 for fixing the detection assembly 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection assembly 11, a cover 10, and a tenth groove 102 for placing the detection assembly 11; wherein, The annular sealing ring 12 is placed in the eleventh annular pit 10121, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12, the first end 10111 of the protrusion 1011 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the tenth groove 102, and the second end 10112 of the protrusion 1011 is welded to the tenth side wall 1022.

[0112] Preferably, the first outer side surface 112 of the detection component 11 and the tenth inner side surface 1013 of the first hollow structure 101 are connected or bonded by gluing.

[0113] Preferably, one or more first limiting protrusions are provided on the tenth inner side surface 1013 of the first hollow structure 101, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon joints, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the tenth inner side surface 1013 of the first hollow structure 101, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon joints. Wherein, the tenth inner side surface 1013 is a side surface of the tenth side wall 1022 facing the detection component 11 placed in the tenth groove 102; Regarding the ninth embodiment, the installation steps of the detection assembly 11 and the first hollow structure 101 may include but are not limited to: Place the detection component 11 in the first hollow structure 101; place the annular sealing ring 12 in the eleventh annular pit 10121; bend the bending portion 1012 so that the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12, and the first end 10111 of the protruding portion 1011 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the tenth groove 102; place the first hollow structure 101 in the tenth groove 102, and weld the second end 10112 of the protruding portion 1011 to the tenth side wall 1022.

[0114] Embodiment 10

[0115] Fig. 20 This is another exploded structural diagram of a battery cover provided by the present application. Fig.21 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0116] Combination Figure 20-21 , the structure of another battery cover provided in the present embodiment 10 is described in detail. Specifically, The preset groove includes: a twelfth groove 122, and the twelfth groove 122 may include but is not limited to: a twelfth hole 1221, a twelfth side wall 1222, and a twelfth annular pit 1223, wherein the twelfth side wall 1222 is machined with a third internal thread 12221; a preset hole is opened on the preset groove, including: a twelfth hole 1221 is opened on the twelfth groove 122; the detection component 11 is connected to the battery body 14 through the twelfth hole 1221; wherein the twelfth groove 122 is a groove opened on the cover plate 10, and the twelfth hole 1221 is a hole opened on the twelfth groove 122; the twelfth side wall 1222 is a side wall formed by stamping of the twelfth groove 122; the twelfth annular pit 1223 is: a pit in the shape of an annulus formed on the twelfth groove 122.

[0117] The fixing structure includes: a second hollow structure 121, and the second hollow structure 121 may include but is not limited to: an annular portion 1212 and a cavity portion 1211, wherein the outer side surface of the cavity portion 1211 is processed with a third external thread 12111; The battery cover in the tenth embodiment may include but is not limited to: a detection component 11 for detecting the temperature and pressure of the battery body 14, a second hollow structure 121 for fixing the detection component 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection component 11, a cover 10, and a twelfth groove 122 for placing the detection component 11; wherein, the outer side surface of the cavity portion 1211 is: a side wall of the cavity portion 1211 with a curved surface shape facing away from a side surface of the detection component 11 placed in the cavity portion 1211; The annular sealing ring 12 is placed in the twelfth annular pit 1223 , and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12 ; The second hollow structure 121 is screwed with the third internal thread 12221 on the twelfth side wall 1222 via the third external thread 12111, so that the annular portion 1212 of the second hollow structure 121 abuts against the second bottom surface 113 of the detection component 11 to fix the detection component 11 placed in the twelfth groove 122.

[0118] Preferably, the first outer side surface 112 of the detection component 11 and the inner side surface of the cavity portion 1211 of the second hollow structure 121 are connected or bonded by gluing, and the inner side surface of the cavity portion 1211 is: the side wall of the cavity portion 1211 with a curved shape faces a side surface of the detection component 11 placed in the cavity portion 1211.

[0119] Preferably, one or more first limiting protrusions are provided on the inner side surface of the twelfth side wall 1222, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the limiting protrusion and the position of the limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the inner side surface of the twelfth side wall 1222, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon; wherein the inner side surface of the twelfth side wall 1222 is: the twelfth side wall 1222 faces the side surface of the detection component 11 in the twelfth groove 122.

[0120] Regarding the tenth embodiment, the installation steps of the detection assembly 11 and the second hollow structure 121 may include but are not limited to: Place the annular sealing ring 12 in the twelfth annular pit 1223; place the detection component 11 in the twelfth groove 122, so that the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; install the second hollow structure 121, so that the third external thread 12111 is screwed with the third internal thread 12221 on the twelfth side wall 1222, so that the bottom surface of the annular portion 1212 of the second hollow structure 121 abuts against the second bottom surface 113 of the detection component 11, so as to fix the detection component 11 placed in the twelfth groove 122.

[0121] Embodiment 11 Fig. 22 This is another exploded structural diagram of a battery cover provided by the present application. Fig.23 It is a schematic diagram of the cross-sectional structure of another battery cover provided.

[0122] Combination Figure 22-23 , the structure of another battery cover provided in the present embodiment 11 is described in detail. Specifically, The preset groove includes: a thirteenth groove 132, the thirteenth groove 132 may include but is not limited to: a thirteenth hole 1321, a thirteenth side wall 1322, and a thirteenth annular pit 1323; the preset groove is provided with preset holes, including: a thirteenth hole 1321 is provided on the thirteenth groove 132; the detection component 11 is connected with the battery body 14 through the thirteenth hole 1321; wherein the thirteenth groove 132 may be a groove provided on the cover plate 10, and the thirteenth hole 1321 may be a hole provided on the thirteenth groove 132; the thirteenth side wall 1322 may be a side wall formed by stamping the thirteenth groove 132; the thirteenth annular pit 1323 may be: a pit in the shape of an annular ring formed on the thirteenth groove 132; The shape of the detection component 11 is cylindrical; The fixing structure includes: a third hollow structure 1314 , which may include but is not limited to: a first ring portion 1311 , a welding portion 1312 , and a second ring portion 1313 ; The battery cover in the eleventh embodiment may include but is not limited to: a detection component 11 for detecting the temperature and pressure of the battery body 14, a third hollow structure 1314 for fixing the detection component 11, an annular sealing ring 12 connected to the first bottom surface 111 of the detection component 11, a cover 10, and a thirteenth groove 132 for placing the detection component 11; wherein, The annular sealing ring 12 is placed in the thirteenth annular pit 1323, and the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12, the first ring portion 1311 abuts against the second bottom surface 113 of the detection component 11, and the second ring portion 1313 abuts against the first outer side surface 112 of the detection component 11, so as to jointly fix the detection component 11 placed in the thirteenth groove 132, and the welding portion 1312 is welded to the cover plate 10.

[0123] Preferably, the first outer side surface 112 of the detection component 11 and the sixth inner side surface 13131 of the second ring portion 1313 of the third hollow structure 1314 are connected or bonded by gluing.

[0124] Preferably, one or more first limiting protrusions are provided on the sixth inner side surface 13131 of the second ring portion 1313, and one or more first limiting grooves are provided on the first outer side surface 112 of the detection component 11, and the first limiting protrusion is connected to the first limiting groove provided on the first outer side surface 112 of the detection component 11 by mortise and tenon, wherein the first limiting protrusion corresponds to the first limiting groove one by one. Optionally, the position of the first limiting protrusion and the position of the first limiting groove can be interchanged, that is, one or more second limiting grooves are provided on the sixth inner side surface 13131 of the second ring portion 1313, and correspondingly, one or more second limiting protrusions are provided on the first outer side surface 112 of the detection component 11, and the second limiting groove is connected to the second limiting protrusion by mortise and tenon; wherein the sixth inner side surface 13131 can be: a side curved surface facing the second ring portion 1313 of the detection component 11 placed in the thirteenth groove 132.

[0125] Regarding the eleventh embodiment, the installation steps of the detection assembly 11 and the third hollow structure 1314 may include but are not limited to: Place the annular sealing ring 12 in the thirteenth annular pit 1323; place the detection component 11 in the thirteenth groove 132, so that the first bottom surface 111 of the detection component 11 is connected to the annular sealing ring 12; install the third hollow structure 1314, so that the first ring portion 1311 abuts against the second bottom surface 113 of the detection component 11, and the second ring portion 1313 abuts against the first outer side surface 112 of the detection component 11, so as to jointly fix the detection component 11 placed in the thirteenth groove 132, and the welding portion 1312 is welded to the cover plate 10.

[0126] It should be noted that the first limiting groove in the present application can also be used as a channel for injection molding glue.

[0127] Figure 1-23 It is only used to illustrate the present application and should not limit the scope of protection of the present application.

[0128] The above are only optional embodiments of the present application, and do not limit the patent scope of the present application. All equivalent structural changes made by using the contents of the present application specification and drawings under the application concept of the present application, or directly / indirectly used in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A battery cover, characterized in that: include: A detection component (11) for detecting the temperature and pressure of a battery body (14), a fixing structure for fixing the detection component (11), an annular sealing ring (12) connected to a first bottom surface (111) of the detection component (11), a cover plate (10) for connecting the battery body (14), and a preset groove provided on the cover plate (10), wherein a preset hole is provided on the preset groove, and the detection component (11) is connected to the battery body (14) through the preset hole; The annular sealing ring (12) is also connected to the fixed structure.

2. The battery cover according to claim 1, characterized in that: The preset groove with preset holes formed on the cover plate (10) comprises: a liquid filling port of the battery.

3. The battery cover as claimed in claim 1, characterized in that: The shape of the detection component (11) includes: a cylinder or a truncated cone.

4. The battery cover according to claim 1 or 3, characterized in that: The fixing structure is a first annular base (21) fixedly connected to the detection component (11); wherein the first annular base (21) comprises: a circular ring portion (211) of the first annular base (21), a base plate (212) of the first annular base (21), a first cavity (213) formed by the enclosed space between the circular ring portion (211) and the base plate (212), a target annular pit (214) provided on the base plate (212), and a target hole (215) provided on the base plate (212). and one or more limiting bosses (216) arranged on the annular portion (211); the first annular base (21) is formed by an integral molding process; a preset hole is provided on the preset groove, including: a second hole is provided on the second groove (23); the target hole (215) includes: a hole located in the enclosed area of ​​the target annular pit (214) and provided on the bottom plate (212); the target annular pit (214) includes: an annular pit in the shape of an annulus provided on the bottom plate (212); The detection component (11) is connected to the battery body (14) through the target hole (215) and the second hole; The annular sealing ring (12) is placed in the target annular pit (214), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); The bottom plate (212) is connected to the cover plate (10) by welding; The detection component (11) is placed in the first cavity (213), and the limiting boss (216) abuts against the second bottom surface (113) of the detection component (11) to fix the detection component (11).

5. The battery cover according to claim 1 or 3, characterized in that: The fixing structure is an annular component (15) for fixing the detection component (11); the fifth bottom surface (152) of the annular component (15) abuts against the second bottom surface (113) of the detection component (11) to fix the detection component (11); The preset groove comprises: a first groove (13); the first groove (13) comprises: a first hole (131), a first side wall (134), and a first annular pit (133); wherein the first groove (13) is formed by the cover plate (10) based on a stamping process; wherein the first groove (13) comprises: a groove opened on the cover plate (10); the first hole (131) comprises: a hole opened on the first groove (13); the first side wall (134) comprises: a side wall formed by the first groove (13) after the stamping process; and the first annular pit (133) comprises: an annular pit opened on the first groove (13); The preset groove is provided with a preset hole, comprising: a first hole (131) is provided on the first groove (13); the detection component (11) is connected to the battery body (14) through the first hole (131); The second outer side surface (151) of the annular component (15) is welded to the first side wall (134) of the first groove (13); the detection component (11) comprises: a first bottom surface (111); the annular sealing ring (12) is placed in the first annular pit (133); the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); the annular component (15) comprises: a component in the shape of a three-dimensional circular ring; the second outer side surface (151) of the annular component (15) comprises: a side curved surface of the annular component (15) facing away from the center of the annular component (15).

6. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a fourth groove (43); The fixing structure comprises: a hollow nut (33) and a hollow screw (31); the hollow nut (33) comprises: a first internal thread (332); the hollow screw (31) comprises: a second side wall (310), a hole portion (311), a second annular base (312), a second cavity (313), an annular recess portion (314), and a first external thread (315); the second annular base (312) is connected to the cover plate (10) by welding; The annular sealing ring (12) is placed in the annular recessed portion (314), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); The preset groove is provided with a preset hole, including: a fourth hole is provided on the fourth groove (43); the detection component (11) is connected to the battery body (14) through the fourth hole and the hole portion (311); The detection component (11) is placed in the second cavity (313), and the hollow nut (33) is screwed to the first internal thread (332) of the hollow screw rod (31) via the first external thread (315), so that the third bottom surface (333) of the hollow nut (33) abuts against the second bottom surface (113) of the detection component (11), thereby fixing the detection component (11).

7. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a fifth groove (53); the fifth groove (53) comprises: a fifth hole (531), a fifth side wall (532), and a fifth annular pit (533); the preset groove is provided with a preset hole, comprising: a fifth hole (531) is provided on the fifth groove (53); the detection component (11) is connected to the battery body (14) through the fifth hole (531); wherein the fifth groove (53) comprises: a groove provided on the cover plate (10); the fifth hole (531) comprises: a hole provided on the fifth groove (53); the fifth side wall (532) comprises: a side wall formed by stamping the fifth groove (53); and the fifth annular pit (533) comprises: an annular pit in an annular shape formed on the fifth side wall (532); The fixing structure comprises: a retaining spring; the retaining spring comprises: an annular retaining spring (41) in an annular shape or a polygonal retaining spring in a polygonal shape; When the retaining spring is an annular retaining spring (41), the annular sealing ring (12) is placed in the fifth annular recess (533), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); the side surface of the annular retaining spring (41) is elastically connected to the fifth side wall (532), and the sixth bottom surface of the annular retaining spring (41) is in contact with the second bottom surface (113) of the detection component (11), so as to fix the detection component (11) placed in the fifth recess (53).

8. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a sixth groove (63), the sixth groove (63) comprises: a sixth hole (631), a sixth side wall (632), and a sixth annular pit (633); the preset groove is provided with a preset hole, comprising: a sixth hole (631) is provided on the sixth groove (63); the detection component (11) is connected to the battery body (14) through the sixth hole (631); wherein the sixth groove (63) comprises: a groove provided on the cover plate (10), the sixth hole (631) comprises: a hole provided on the sixth groove (63), the sixth side wall (632) comprises: a side wall formed by stamping the sixth groove (63), and the sixth annular pit (633) comprises: an annular pit formed on the sixth groove (63); The fixing structure comprises: a concave ring portion (61), wherein the concave ring portion (61) is formed by stamping a sixth side wall (632); The annular sealing ring (12) is placed in the sixth annular recess (633), and the first bottom surface (111) of the detection component (11) is connected to the upper surface of the annular sealing ring (12); The first edge surface (611) of the concave ring portion (61) abuts against the second bottom surface (113) of the detection component (11) to fix the detection component (11) placed in the sixth groove (63).

9. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a seventh groove (73), the seventh groove (73) comprises: a seventh hole (731), a seventh side wall (732), and a seventh annular pit (733); the preset groove is provided with a preset hole, comprising: the seventh groove (73) is provided with a seventh hole (731); wherein the seventh groove (73) comprises: a groove provided on the cover plate (10), the seventh hole (731) comprises: a hole provided on the seventh groove (73), the seventh side wall (732) comprises: a side wall formed by stamping the seventh groove (73), and the seventh annular pit (733) comprises: a pit in the shape of an annulus formed on the seventh side wall (732); The detection component (11) is in communication with the battery body (14) via the seventh hole (731); The fixed structure comprises: a plurality of movable parts (71); the movable parts (71) are formed by stamping the seventh side wall (732); The annular sealing ring (12) is placed in the seventh annular pit (733), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); The second edge surface (711) of the movable portion (71) abuts against the second bottom surface (113) of the detection component (11) to fix the detection component (11) placed in the seventh groove (73).

10. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: an eighth groove (83), the eighth groove (83) comprises: an eighth hole (831), an eighth side wall (832), and an eighth annular pit (833); wherein the eighth side wall (832) is machined with a second internal thread (834); the preset groove is provided with a preset hole, comprising: the eighth groove (83) is provided with an eighth hole (831); wherein the eighth groove (83) comprises: a groove provided on the cover plate (10), the eighth hole (831) comprises: a hole provided on the eighth groove (83), and the eighth side wall (832) comprises: a side wall of the eighth groove (83) formed by stamping; The detection component (11) is in communication with the battery body (14) via the eighth hole (831); The fixing structure comprises: a hollow screw portion (81), the outer side surface of the hollow screw portion (81) being processed with a second external thread (811); The annular sealing ring (12) is placed in the eighth annular pit (833), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); The hollow screw portion (81) is threadedly connected to the second internal thread (834) on the eighth side wall (832) via the second external thread (811), so that the fourth bottom surface (812) of the hollow screw portion (81) abuts against the second bottom surface (113) of the detection component (11), thereby fixing the detection component (11) placed in the eighth groove (83).

11. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a ninth groove (93), the ninth groove (93) comprises: a ninth hole (931) and a ninth side wall (932); the preset groove is provided with a preset hole, comprising: a ninth hole (931) is provided on the ninth groove (93); the detection component (11) is connected to the battery body (14) through the ninth hole (931); wherein the ninth groove (93) comprises: a groove provided on the cover plate (10), the ninth hole (931) comprises: a hole provided on the ninth groove (93), and the ninth side wall (932) comprises: a side wall formed by stamping the ninth groove (93); The fixing structure comprises: a hollow aluminum tube (91), the hollow aluminum tube (91) being formed by stamping the front and rear ends of an aluminum tube whose center is hollow and whose cross section is a circular ring; the hollow aluminum tube (91) comprising: a ninth annular recess (911) and a tenth annular recess (912); a ninth outer side surface (913) of the hollow aluminum tube (91) being welded to a ninth side wall (932); the ninth outer side surface (913) comprising: a curved surface on one side of the side wall of the hollow aluminum tube (91) facing away from the center of the aluminum tube; The annular sealing ring (12) is placed in the ninth annular pit (911), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); A preset sealing ring (92) is also placed in the tenth annular recess (912), and the second bottom surface (113) of the detection component (11) is connected to the preset sealing ring (92), wherein the preset sealing ring (92) is an annular sealing ring; The annular sealing ring (12) placed in the ninth annular recess (911) and the preset sealing ring (92) placed in the tenth annular recess (912) are respectively in contact with the detection component (11) to fix the detection component (11).

12. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a tenth groove (102), the tenth groove (102) comprises: a tenth hole (1021), and a tenth side wall (1022); the preset groove is provided with a preset hole, comprising: a tenth hole (1021) is provided on the tenth groove (102); the detection component (11) is connected to the battery body (14) through the tenth hole (1021); wherein the tenth groove (102) comprises: a groove provided on the cover plate (10), the tenth hole (1021) comprises: a hole provided on the tenth groove (102); the tenth side wall (1022) comprises: a side wall of the tenth groove (102) formed by a stamping process; The fixing structure comprises: a first hollow structure (101), the first hollow structure (101) comprising: a protruding portion (1011) and a bent portion (1012), wherein an eleventh annular recess (10121) is formed on the bent portion (1012); the tenth side wall (1022) abuts against the bent portion (1012), and the eleventh annular recess (10121) comprises: a recess in an annular shape formed on the bent portion (1012); The annular sealing ring (12) is placed in the eleventh annular pit (10121), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12), the first end (10111) of the raised portion (1011) abuts against the second bottom surface (113) of the detection component (11) to fix the detection component (11) placed in the tenth groove (102), and the second end (10112) of the raised portion (1011) is welded to the tenth side wall (1022).

13. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a twelfth groove (122), the twelfth groove (122) comprises: a twelfth hole (1221), a twelfth side wall (1222), and a twelfth annular pit (1223), wherein the twelfth side wall (1222) is machined with a third internal thread (12221); the preset groove is provided with a preset hole, comprising: a twelfth hole (1221) is provided on the twelfth groove (122); the detection component (11) is connected to the battery body (14) through the twelfth hole (1221); wherein the twelfth groove (122) comprises: a groove provided on the cover plate (10), the twelfth hole (1221) comprises: a hole provided on the twelfth groove (122); the twelfth side wall (1222) comprises: a side wall formed by the twelfth groove (122) through stamping; The twelfth annular recess (1223) comprises: a recess in an annular shape formed on the twelfth groove (122); The fixing structure comprises: a second hollow structure (121), the second hollow structure (121) comprising: an annular portion (1212) and a cavity portion (1211), wherein the outer side surface of the cavity portion (1211) is processed with a third external thread (12111); The annular sealing ring (12) is placed in the twelfth annular recess (1223), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12); The second hollow structure (121) is threadedly connected to the third internal thread (12221) on the twelfth side wall (1222) via the third external thread (12111), so that the annular portion (1212) of the second hollow structure (121) abuts against the second bottom surface (113) of the detection component (11), thereby fixing the detection component (11) placed in the twelfth groove (122).

14. The battery cover according to claim 1 or 3, characterized in that: The preset groove comprises: a thirteenth groove (132), the thirteenth groove (132) comprises: a thirteenth hole (1321), a thirteenth side wall (1322), and a thirteenth annular pit (1323); the preset groove is provided with a preset hole, comprising: a thirteenth hole (1321) is provided on the thirteenth groove (132); the detection component (11) is connected with the battery body (14) through the thirteenth hole (1321); wherein the thirteenth groove (132) comprises: a groove provided on the cover plate (10), the thirteenth hole (1321) comprises: a hole provided on the thirteenth groove (132); the thirteenth side wall (1322) comprises: a side wall formed by stamping the thirteenth groove (132); the thirteenth annular pit (1323) comprises: a pit in the shape of an annulus formed on the thirteenth groove (132); The detection component (11) is in the shape of a cylinder; The fixing structure comprises: a third hollow structure (1314), and the third hollow structure (1314) comprises: a first ring portion (1311) and a welding portion (1312); The annular sealing ring (12) is placed in the thirteenth annular recess (1323), and the first bottom surface (111) of the detection component (11) is connected to the annular sealing ring (12), the first ring portion (1311) abuts against the second bottom surface (113) of the detection component (11) to fix the detection component (11) placed in the thirteenth recess (132), and the welding portion (1312) is welded to the cover plate (10).

15. The battery cover as claimed in claim 6, characterized in that: The hollow nut (33) further comprises a fourteenth annular recess (331), a preset sealing ring (92) is further placed in the fourteenth annular recess (331), and the second bottom surface (113) of the detection component (11) is connected to the preset sealing ring (92), wherein the preset sealing ring (92) is an annular sealing ring.

16. The battery cover as claimed in claim 1, characterized in that: The inner side surface of the fixing structure is provided with one or more first limiting protrusions, the first outer side surface (112) of the detection component (11) is provided with one or more first limiting grooves, the first limiting protrusions are connected to the first limiting grooves by mortise and tenon joints, and the first limiting protrusions correspond to the first limiting grooves one by one; or, The inner side surface of the fixing structure is provided with one or more second limiting grooves, the first outer side surface (112) of the detection component (11) is provided with one or more second limiting protrusions, the second limiting protrusions are connected to the second limiting grooves by mortise and tenon joints, and the second limiting protrusions correspond to the second limiting grooves one by one.

17. The battery cover as claimed in claim 1, characterized in that: The first outer side surface (112) of the detection component (11) is connected to the inner side surface of the fixing structure by gluing.

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