CN216980719U - Battery cap and cylindrical battery - Google Patents
Battery cap and cylindrical battery Download PDFInfo
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- CN216980719U CN216980719U CN202220767858.0U CN202220767858U CN216980719U CN 216980719 U CN216980719 U CN 216980719U CN 202220767858 U CN202220767858 U CN 202220767858U CN 216980719 U CN216980719 U CN 216980719U
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- ring
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Abstract
The utility model provides a battery cap and a cylindrical battery, and relates to the technical field of new energy. The terminal post main body arranged on the cap main body of the battery cap provided by the utility model is connected with the snap fastener fixing piece, and the bottom plate is connected with the pole ear; when the pole body is required to be connected with the pole lugs, the pole lugs are connected with the snap fastener fixing piece through the bottom plate, so that the conduction between the pole lugs and the pole body is realized; compare in prior art, reduced the assembly degree of difficulty, snap-fastener mounting and bottom plate interference fit connection have strengthened naked electric core and battery block complex stability, reduce because the battery later stage rocks the naked electric core that the scheduling factor caused and rocks, and risk such as naked electric core utmost point ear and bottom plate rupture of being connected.
Description
Technical Field
The utility model relates to the technical field of new energy, in particular to a battery cap and a cylindrical battery.
Background
The prior art adopts the elastic component to connect bottom plate and block, and metal soleplate and naked electric core utmost point ear pass through welded connection, form electrically conductive route. The use of elastic component causes the interference of naked electric core utmost point ear and elastic component very obviously easily, reduces the welding manufacturability of naked electric core utmost point ear and bottom plate.
In addition, the design of elastic component need consider the elastic component to whole battery and battery case's design influence, prevents that the elastic component from crushing naked electric core, causes potential inefficacy risk, and elastic connecting piece exists vibrations in the battery use moreover and takes place risks such as deformation, drop.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a battery cap and a cylindrical battery so as to solve the technical problem of unstable connection of a lug and the battery cap.
In a first aspect, the utility model provides a battery cap, which comprises a cap main body, wherein a pole main body penetrates through the cap main body, a snap fastener is arranged at the lower end of the pole main body, a bottom plate which is in interference fit with the snap fastener is arranged on the snap fastener, and the bottom plate is used for being connected with a battery core tab.
In an alternative embodiment, the snap fastener fixing member comprises a connecting column, a first boss is arranged on the connecting column along the circumferential direction of the connecting column, and the first boss forms a first clamping ring;
the orientation of bottom plate the one end of spliced pole is provided with the side and supports the wall, just the side supports the wall and follows the border of bottom plate sets up a week and forms and can interference fit be in first solid fixed ring on the first joint ring.
In an alternative embodiment, a surface of the first boss, which is away from the connecting column, is a first inclined surface, and the first inclined surface enables the first clamping ring to form a first outer annular surface which extends from one end away from the base plate to the pole body and has a continuously increasing diameter.
In an alternative embodiment, the inner side of the side support wall has an inner first slope, which forms the inner side of the first fixing ring into a first inner annular surface that extends from the end away from the bottom plate to the bottom plate and has a diameter that increases.
In an alternative embodiment, an upper insulating spacer is arranged at the upper end of the cap body, and a lower insulating spacer is arranged at the lower end of the cap body;
the upper insulating gasket comprises an upper annular gasket and an upper insulating sleeve sleeved on the pole column main body, and the upper insulating sleeve is arranged at the lower end of the upper annular gasket;
the lower insulating gasket comprises a lower annular gasket and a lower insulating sleeve sleeved on the pole main body, and the lower insulating sleeve is arranged at the upper end of the lower annular gasket;
and the upper insulating sleeve and the lower insulating sleeve are both positioned in the through hole of the cap main body.
The terminal post main body arranged on the cap main body of the battery cap provided by the utility model is connected with the snap fastener fixing piece, and the bottom plate is connected with the pole ear; when the pole body is required to be connected with the pole lugs, the pole lugs are connected with the snap fastener fixing piece through the bottom plate, so that the conduction between the pole lugs and the pole body is realized;
compare in prior art, reduced the assembly degree of difficulty, snap-fastener mounting and bottom plate interference fit connection have strengthened naked electric core and battery block complex stability, reduce because the battery later stage rocks the naked electric core that the scheduling factor caused and rocks, and risk such as naked electric core utmost point ear and bottom plate rupture of being connected.
In a second aspect, the present invention provides a cylindrical battery comprising a battery cap according to any one of the preceding embodiments.
In an alternative embodiment, a housing is also included, the housing having an upper opening, the battery cap fitting over the upper opening.
In an alternative embodiment, the cap body has a lower mounting plate facing the housing, and the lower mounting plate is arranged along the edge of the cap body in a circle and forms a columnar structure;
a second boss arranged along the circumferential direction of the columnar structure is arranged on the columnar structure, and the second boss forms a second clamping ring; the second snap ring fits within the upper opening.
In an optional embodiment, a surface of the second boss, which is away from the cylindrical structure, is a second inclined surface, and the second inclined surface enables the second snap ring to form a second outer ring surface which extends from one end away from the outer shell to the cap main body and has a continuously increasing diameter.
In an alternative embodiment, the inner side of the housing has an inner second slope, which forms the inner side of the upper opening into a second inner annular surface with a diameter that increases from one end of the upper opening of the housing to the other end of the housing.
The utility model also provides a cylindrical battery, which adopts the battery cap, thereby having all the beneficial effects of the battery cap.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a battery cap according to an embodiment of the present invention;
FIG. 2 is a schematic view of the snap fastener construction of the battery cap shown in FIG. 1;
FIG. 3 is a schematic structural view of a bottom plate of the battery cap shown in FIG. 1;
fig. 4 is a schematic structural diagram of a cylindrical battery according to an embodiment of the present invention.
Icon: 100-a cap body; 200-pole body; 300-upper insulating spacers; 400-upper opening; 500-lower insulating spacer; 600-snap fasteners; 601-connecting column; 602-a first snap ring; 603-a first outer annular surface; 700-a backplane; 701-side support wall; 702-a first inner annular surface; 703-a first retaining ring; 800-columnar structure; 900-a second outer annulus; 110-a second snap ring; 120-a housing; 130-second inner annular surface.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Referring to fig. 1 to 3, the present invention provides a battery cap, which includes a cap body 100, a post body 200 penetrating through the cap body 100, a snap fastener 600 disposed at a lower end of the post body 200, a base plate 700 disposed on the snap fastener 600 and interference-fitted with the snap fastener 600, and the base plate 700 for connecting with a battery tab.
In some embodiments, the cap body 100 is provided with a post body 200 through the cap body, and the post body 200 is made of metal, such as aluminum or copper. The snap fastener 600 is welded at the lower end of the pole body 200, so that the snap fastener 600 is fixed on the pole body 200; the bottom plate 700 is connected with a battery cell tab in a welding mode, and is generally a bare battery cell tab; when the battery cap is connected with the housing 120, the bottom plate 700 is in interference fit with the snap fastener 600, so that the connection between the tab and the pole body 200 is realized; bottom plate 700 and snap-fastener mounting 600 that the interference is connected have strengthened naked electric core and battery cap complex stability, reduce because the battery later stage rocks the naked electric core that the scheduling factor caused and rocks, and risk such as naked electric core utmost point ear and bottom plate 700 rupture of being connected.
In an alternative embodiment, the snap fastener fixing member 600 includes a connection column 601, a first boss disposed along a circumferential direction of the connection column 601 is disposed on the connection column 601, and the first boss forms a first snap ring 602;
one end of the bottom plate 700 facing the connecting column 601 is provided with a side supporting wall 701, and the side supporting wall 701 is provided with a circle along the edge of the bottom plate 700 and forms a first fixing ring 703 capable of being interference-assembled on the first clamping ring 602.
In some embodiments, the connecting column 601 of the snap fastener 600 is provided with a first boss, the first boss is arranged at the side of the connecting column 601, and a circle is arranged along the connecting column 601 to form a first snap ring 602, so that the first fixing ring 703 on the bottom plate 700 can be connected with the first snap ring 602, and the interference fit between the bottom plate 700 and the snap fastener 600 is realized.
A side supporting wall 701 is arranged on one side of the bottom plate 700 facing the connecting column 601, and the side supporting wall 701 is arranged along the bottom plate 700 for a circle; generally, the bottom plate 700 is circular, a circle of the side supporting wall 701 is arranged along the edge of the bottom plate 700 to form a first fixing ring 703, and the first fixing ring 703 is sleeved outside the first clamping ring 602, so that the snap fastener 600 is connected with the bottom plate 700; since the snap fastener 600 is welded to the post body 200 and the tab is welded to the base plate 700, the tab is communicated with the post body 200 when the snap fastener 600 is coupled to the base plate 700.
In an alternative embodiment, a surface of the first protrusion away from the connecting post 601 is a first inclined surface, and the first inclined surface makes the first snap ring 602 form a first outer annular surface 603 with a diameter that increases from an end away from the bottom plate 700 to the post body 200.
In an alternative embodiment, the inner side of the side supporting wall 701 has an inner first inclined surface, and the inner first inclined surface makes the inner side of the first fixing ring 703 form a first inner annular surface 702 which extends from an end far away from the bottom plate 700 to the bottom plate 700 and has a diameter which is gradually increased.
When the first outer annular surface 603 contacts the first inner annular surface 702, the first outer annular surface 603 plays a role in guiding, so that the inner diameter of the first inner annular surface 702 is increased, the first inner annular surface 702 is gradually increased along with the relative movement of the first snap ring 602 and the first fixing ring 703, the first outer annular surface 603 is also gradually increased, finally, the upper end of the first fixing ring 703 is moved to the upper end of the first snap ring 602, after the first fixing ring 703 is moved to the upper end of the first snap ring 602, the upper end of the first fixing ring 703 loses the support of the first snap ring 602, the opening of the upper end of the first fixing ring 703 is contracted, and the interference connection between the first fixing ring 703 and the first snap ring 602 is further realized.
In an alternative embodiment, an upper insulating spacer 300 is disposed at an upper end of the cap body 100, and a lower insulating spacer 500 is disposed at a lower end of the cap body 100;
the upper insulating gasket 300 comprises an upper annular gasket and an upper insulating sleeve sleeved on the pole body 200, and the upper insulating sleeve is arranged at the lower end of the upper annular gasket;
the lower insulating gasket 500 comprises a lower annular gasket and a lower insulating sleeve sleeved on the pole main body 200, and the lower insulating sleeve is arranged at the upper end of the lower annular gasket;
and the upper insulating sleeve and the lower insulating sleeve are both located in the through hole of the cap body 100.
Be provided with the through hole on block main part 100, it is located the upper end of block main part 100 to go up the annular gasket, go up the last insulating cover of annular gasket and insert in the through hole from the upper end of through hole, the lower annular gasket is located the lower extreme of block main part 100, lower insulating cover on the annular gasket sets up the upper end at annular gasket down, and go up insulating cover and insert in the through hole from the lower extreme of through hole, it all is located utmost point post main part 200 with insulating cover down to go up insulating cover, it makes utmost point post main part 200 and block main part 100 form physical insulation with insulating cover cooperation down to go up insulating cover like this.
Utmost point post main part 200 and block main part 100 all adopt the metal material, go up insulating cover and adopt insulating material with insulating cover down, and this material is the material commonly used in the battery field, and here is not being repeated.
The pole body 200 arranged on the cap body 100 of the battery cap provided by the utility model is connected with the snap fastener 600, and the bottom plate 700 is connected with the pole ear; snap fastener mounting 600 bottom is connected with naked electric core utmost point ear, is connected with snap fastener mounting 600 through bottom plate 700, realizes switching on of electric core and utmost point post.
Compare in prior art, reduced the assembly degree of difficulty, snap-fastener mounting 600 and bottom plate 700 interference fit connection have strengthened naked electric core and battery block complex stability, reduce because the battery later stage rocks the naked electric core that the factor such as cause and rocks, and naked electric core utmost point ear and bottom plate 700 risk such as fracture of being connected.
Referring to fig. 4, the present invention provides a cylindrical battery including the battery cap according to any one of the previous embodiments.
In an alternative embodiment, a housing 120 is further included, the housing 120 having an upper opening 400, the battery cap being fitted into the upper opening 400.
In an alternative embodiment, the cap body 100 has a lower mounting plate facing the housing 120, and the lower mounting plate is disposed along the edge of the cap body 100 for a circle and forms a column structure 800;
a second boss arranged along the circumferential direction of the columnar structure 800 is arranged on the columnar structure 800, and the second boss forms a second clamping ring 110; the second snap ring 110 is fitted in the upper opening 400.
In an alternative embodiment, a surface of the second boss far from the cylindrical structure 800 is a second inclined surface, and the second inclined surface makes the second snap ring 110 form a second outer ring surface 900 which extends from an end far from the housing 120 to the cap body 100 and has a continuously increasing diameter.
In an alternative embodiment, the inner side of the outer shell 120 has an inner second slope, which makes the inner side of the upper opening 400 form a second inner annular surface 130 that extends from one end of the upper opening 400 of the outer shell 120 to the other end of the outer shell 120 and has a diameter that increases continuously.
In some embodiments, the cylindrical battery includes a battery cap and a housing 120, the housing 120 having an upper opening 400; a lower mounting plate is arranged on the cap body 100, the lower mounting plate forms a columnar structure 800 which can be inserted into the upper opening 400, a second boss is arranged on the periphery of the columnar structure 800, and the second boss is arranged along the columnar structure 800 for a circle to form a second clamping ring 110; the second ramp on the second boss causes the second snap ring 110 to form a second outer annulus 900.
The inner second inclined surface in the housing 120 forms a second inner annular surface 130, and the second outer annular surface 900 is coupled to the second inner annular surface 130 in a manner similar to the coupling of the first inner annular surface 702 to the first outer annular surface 603.
When the battery cap is connected with the shell 120, the snap fastener 600 on the cap body 100 is welded with the pole body 200, and the bottom plate 700 is welded with the bare cell pole ear; after assembling the bare cell into the outer shell 120, the battery is covered and inserted into the outer shell 120, the first snap ring 602 of the snap fastener 600 is in interference fit with the first fixing ring 703 on the bottom plate 700, and the second snap ring 110 on the cap main body 100 is in interference fit with the upper opening 400 on the outer shell 120, that is, when the battery cap is assembled with the outer shell 120, the pole main body 200 and the pole ear of the bare cell welded with the bottom plate 700 form a passage.
Like this connected mode has strengthened naked electric core utmost point ear and block main part 100 complex stability, has reduced because the battery later stage rocks the naked electric core that the scheduling factor caused and rocks, and naked electric core utmost point ear and bottom plate 700 risk such as fracture are connected.
The utility model also provides a cylindrical battery which adopts the battery cap, so that all the beneficial effects of the battery cap are achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The utility model provides a battery cap, its characterized in that, includes block main part (100) run through on block main part (100) and be provided with utmost point post main part (200) lower extreme is provided with snap fastener mounting (600) be provided with bottom plate (700) with snap fastener mounting (600) interference fit on snap fastener mounting (600), just bottom plate (700) are used for being connected with electric core utmost point ear.
2. The battery cap according to claim 1, wherein the snap fastener (600) comprises a connection post (601), a first boss provided along a circumferential direction of the connection post (601) is provided on the connection post (601), and the first boss forms a first snap ring (602);
one end, facing the connecting column (601), of the bottom plate (700) is provided with a side supporting wall (701), the side supporting wall (701) is arranged in a circle along the edge of the bottom plate (700) to form a first fixing ring (703) capable of being assembled on the first clamping ring (602) in an interference fit mode.
3. The battery cap according to claim 2, wherein a surface of the first boss remote from the connection post (601) is a first inclined surface, and the first inclined surface causes the first snap ring (602) to form a first outer annular surface (603) extending from an end remote from the base plate (700) toward the post body (200) and having an increasing diameter.
4. A battery cap according to claim 3, characterized in that the inner side of the side supporting wall (701) has an inner first slope, and the inner first slope makes the inner side of the first fixing ring (703) form a first inner ring surface (702) which extends from the end far away from the bottom plate (700) to the bottom plate (700) and has a diameter which is gradually increased.
5. The battery cap according to claim 4, characterized in that an upper insulating spacer (300) is provided at the upper end of the cap body (100), and a lower insulating spacer (500) is provided at the lower end of the cap body (100);
the upper insulating gasket (300) comprises an upper annular gasket and an upper insulating sleeve sleeved on the pole main body (200), and the upper insulating sleeve is arranged at the lower end of the upper annular gasket;
the lower insulating gasket (500) comprises a lower annular gasket and a lower insulating sleeve sleeved on the pole main body (200), and the lower insulating sleeve is arranged at the upper end of the lower annular gasket;
and the upper insulating sleeve and the lower insulating sleeve are both positioned in the through hole of the cap main body (100).
6. A cylindrical battery comprising the battery cap of any one of claims 1-5.
7. The cylindrical battery according to claim 6 further comprising a housing (120), the housing (120) having an upper opening (400), the battery cap being fitted to the upper opening (400).
8. The cylindrical battery as claimed in claim 7, wherein the cap body (100) has a lower mounting plate facing the housing (120), and the lower mounting plate is disposed along the rim of the cap body (100) for one circle and forms a cylindrical structure (800);
a second boss arranged along the circumferential direction of the columnar structure (800) is arranged on the columnar structure (800), and the second boss forms a second clamping ring (110); the second snap ring (110) is fitted in the upper opening (400).
9. The cylindrical battery according to claim 8, wherein a surface of the second boss away from the cylindrical structure (800) is a second inclined surface, and the second inclined surface enables the second snap ring (110) to form a second outer ring surface (900) with a diameter increasing from an end away from the outer shell (120) to the cap body (100).
10. The cylindrical battery according to claim 9, wherein the inner side of the housing (120) has an inner second slope, and the inner second slope forms the inner side of the upper opening (400) into a second inner annular surface (130) extending from one end of the upper opening (400) of the housing (120) to the other end of the housing (120) and having a diameter that increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220767858.0U CN216980719U (en) | 2022-04-01 | 2022-04-01 | Battery cap and cylindrical battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220767858.0U CN216980719U (en) | 2022-04-01 | 2022-04-01 | Battery cap and cylindrical battery |
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| Publication Number | Publication Date |
|---|---|
| CN216980719U true CN216980719U (en) | 2022-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220767858.0U Active CN216980719U (en) | 2022-04-01 | 2022-04-01 | Battery cap and cylindrical battery |
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| Country | Link |
|---|---|
| CN (1) | CN216980719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084733A (en) * | 2022-08-18 | 2022-09-20 | 江苏时代新能源科技有限公司 | Casing, battery monomer, battery and power consumption device |
-
2022
- 2022-04-01 CN CN202220767858.0U patent/CN216980719U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084733A (en) * | 2022-08-18 | 2022-09-20 | 江苏时代新能源科技有限公司 | Casing, battery monomer, battery and power consumption device |
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