CN115693052B - Battery top cover assembly, battery pack and electric equipment - Google Patents
Battery top cover assembly, battery pack and electric equipment Download PDFInfo
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- CN115693052B CN115693052B CN202211378145.6A CN202211378145A CN115693052B CN 115693052 B CN115693052 B CN 115693052B CN 202211378145 A CN202211378145 A CN 202211378145A CN 115693052 B CN115693052 B CN 115693052B
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- 238000007789 sealing Methods 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 238000002347 injection Methods 0.000 claims abstract description 44
- 239000007924 injection Substances 0.000 claims abstract description 44
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000013589 supplement Substances 0.000 abstract 1
- 239000003792 electrolyte Substances 0.000 description 18
- 238000009434 installation Methods 0.000 description 17
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 8
- 238000001802 infusion Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 235000015842 Hesperis Nutrition 0.000 description 1
- 235000012633 Iberis amara Nutrition 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Filling, Topping-Up Batteries (AREA)
Abstract
The application discloses battery top cap subassembly, battery package and consumer, this battery top cap subassembly includes: the device comprises a cover plate, a mounting cover, a connecting piece and a sealing plug. The cover plate is provided with a liquid injection hole and a sinking platform hole, and the sinking platform hole is communicated with one side of the liquid injection hole, which is close to the outside of the battery, and is provided with a first side wall. The mounting cover is provided with a second side wall, the connecting piece is provided with a pretightening force, the sealing plug comprises a plug column, the plug column is in sealing fit with the liquid injection hole, the mounting cover is arranged in the sinking table hole, the connecting piece is elastically and telescopically arranged on the first side wall, the second side wall is provided with a mounting hole, and one end of the connecting piece far away from the first side wall is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected; or the connecting piece is elastically telescopic and arranged on the second side wall, the first side wall is provided with a mounting hole, and one end of the connecting piece far away from the second side wall is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected. By adopting the design, the battery top cover can be sealed and detached, so that secondary supplement of liquid injection is facilitated.
Description
Technical Field
The application relates to the technical field of battery packaging, in particular to a battery top cover assembly, a battery pack and electric equipment.
Background
The battery generally needs to ensure enough electrolyte to normally work, and the liquid injection port of the electrolyte is generally arranged on the top cover of the battery, the electrolyte can be injected into the battery through the liquid injection port, the liquid injection port is required to be sealed for the second time by adopting a sealing piece after the liquid injection is completed, the liquid injection port can be sealed by laser welding, and the phenomenon of liquid leakage in the use process of the battery is ensured not to occur.
In service life of the battery, repeated charging and discharging processes can lead to electrolyte loss, so that service performance of the battery is reduced, and the electrolyte in the battery needs to be replenished to ensure normal continuous operation of the battery. In the prior art, most of the electrolyte is injected and then the liquid injection hole is welded to be dead, so that the seal is not detachable, the electrolyte cannot be timely supplemented, and the utilization rate of the battery is low; or the cover plate is damaged after the disassembly to complete the liquid injection, and the welding quality can cause a certain degree of welding defect along with the cleaning degree of the parts, so that the sealing performance of the battery top cover assembly after the liquid supplementing and the sealing is also reduced.
Disclosure of Invention
It is therefore one of the primary objectives of the present application to overcome at least one of the above-mentioned drawbacks of the prior art, and to provide a battery end plate and a battery capable of achieving self-sealing and with a detachable sealing structure, which is convenient for achieving secondary fluid infusion of the battery.
In order to achieve the above purpose, the present application adopts the following technical scheme:
according to one aspect of the present application, a battery top cap assembly is provided that includes a cover plate, a mounting cap, an elastic member, and a sealing plug. The cover plate is provided with a liquid injection hole and a sinking table hole, the sinking table hole is communicated with one side, close to the outside of the battery, of the liquid injection hole, and the sinking table hole is provided with a first side wall. The mounting cover has a second side wall, the connector has a preload, and the sealing plug includes a plug. The plug is in sealing fit with the liquid injection hole, the mounting cover is arranged in the sinking table hole, the connecting piece is elastically and telescopically arranged on the first side wall, the second side wall is provided with a mounting hole, and one end of the connecting piece, which is far away from the first side wall, is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected; or, the connecting piece can be elastically and telescopically arranged on the second side wall, the first side wall is provided with a mounting hole, and one end of the connecting piece far away from the second side wall is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected. According to the battery top cover assembly, the connecting piece is arranged between the mounting cover and the side wall of the cover plate sinking platform hole, the plug of the sealing plug is in sealing fit with the liquid injection hole, the connecting piece is elastically and telescopically arranged on the first side wall, the mounting hole is formed in the second side wall, and one end, far away from the first side wall, of the connecting piece is inserted into the mounting hole, so that the mounting cover and the cover plate are detachably connected; or the connecting piece can elastically and telescopically set up in the second lateral wall, and first lateral wall has the mounting hole, and the one end that the second lateral wall was kept away from to the connecting piece inserts the mounting hole to make installation lid and apron detachably connect, when making needs annotate the liquid to the battery, only need take off the installation lid through the adjustment connecting piece, and take off the sealing plug can realize annotating the liquid. The battery can be sealed without welding, and the sealing is detachable, so that secondary liquid injection of the battery is facilitated. After the service time of the battery is too long, the electrolyte is seriously consumed, and the secondary injection can improve the electrolyte content, so that the charge and discharge performance of the battery is improved, and the service cost of the battery is reduced as a whole.
According to one embodiment of the present application, the length of the connecting member in a state of not receiving an external force is greater than the depth of the mounting hole.
In this application, the length of the connector when not subjected to external force is greater than the length of the mounting hole. So that the connecting piece is inserted into the mounting hole and is pressed by the bottom of the mounting hole, and the mounting cover can be detachably mounted into the sinking table hole.
According to one embodiment of the present application, the connector includes an elastic member and a plug member, one end of the plug member is inserted into the mounting hole, and the elastic member is connected to the other end of the plug member.
In this application, the plug connector provides certain support and guide effect for the elastic component, can make the elastic component more stable.
According to one embodiment of the application, the plug connector is a pin, the mounting hole is a pin hole, the pin comprises a pin body and a pin column with a cross section smaller than that of the pin body, the pin column is arranged at one end of the pin body, the pin body is inserted into the pin hole, and the elastic piece is sleeved on the pin column.
In this application, design the pin as thick and thin two parts that are different to thicker nail body and pinhole cooperation, thinner nail post and elastic component cooperation can realize when the elastic component is compressed, when the second lateral wall of installation lid supports the nail post of pin, and the elastic component can not be recompressed, thereby avoids the unrestrained compression of elastic component to produce plastic deformation and damage.
According to one embodiment of the present application, the mounting cap has a top surface with a recess disposed thereon.
In this application, set up the recess on the top surface of installation lid, can make can pass through the recess operation when opening the installation lid.
According to one embodiment of the application, the mounting cover comprises a first half cover and a second half cover, a first notch is formed in the first half cover, a second notch is formed in the second half cover, the first half cover is in butt joint with the second half cover, and the first notch is in butt joint with the second notch and communicated with the second notch.
In the application, the first half cover and the second half cover which are arranged in a split mode are adopted for the mounting cover, so that the processing technology can be simplified. The first half cover and the second half cover are arranged opposite to each other, and when sealing can be realized, the first half cover and the second half cover are close to each other to realize closing. The first recess communicates with the second recess, and when the seal is to be removed, the first and second cover halves can be opened by the interconnected grooves.
According to one embodiment of the present application, the connecting piece includes a first connecting piece and a second connecting piece, the first connecting piece set up in between the first half lid with sink deck hole's the first side wall, the second connecting piece set up in between the second half lid with sink deck hole's the first side wall, the first connecting piece with the axis collineation of second connecting piece.
In this application, through setting up the collinear first connecting piece of axis and second connecting piece for first half lid and second half lid can be closely and stable under the effect of pretightning force.
According to one embodiment of the application, the first connecting piece comprises a first elastic piece and a first plug connector, the second connecting piece comprises a second elastic piece and a second plug connector, the mounting hole comprises a first mounting hole and a second mounting hole, one end of the first plug connector is inserted into the first mounting hole, the first elastic piece is connected to the other end of the first plug connector, one end of the second plug connector is inserted into the second mounting hole, and the second elastic piece is connected to the other end of the second plug connector.
In this application, the plug connector can realize the support to the elastic component for the elastic component is more stable, and the plug connector provides certain guide effect for the flexible of elastic component.
According to one embodiment of the present application, the first plug connector is a first pin, the second plug connector is a second pin, the first mounting hole is a first pin hole, the second mounting hole is a second pin hole, the first pin comprises a first pin body and a first pin column with a cross-sectional area smaller than that of the first pin body, the first pin column is arranged at one end of the first pin body, and the first pin body is inserted into the first pin hole; the second pin comprises a second pin body and a second pin column with the cross section area smaller than that of the second pin body, the second pin column is arranged at one end of the second pin body, and the second pin body is inserted into the second pin hole.
In this application, design the pin into two parts that the thickness is different to thicker nail body and pinhole cooperation can improve the intensity of pin, save material.
According to one embodiment of the present application, the first elastic member is sleeved on the first post, and the second elastic member is sleeved on the second post.
In this application, adopt thinner post and elastic component cooperation, can realize when the elastic component is compressed, when the second lateral wall of installation lid supports the post of pin, the elastic component can not be recompressed to avoid the elastic component unlimited compression to produce plastic deformation and damage.
According to one embodiment of the present application, the plug is in interference fit with the liquid injection hole, and the interference of the plug and the liquid injection hole is 0.15-0.25mm.
In the application, the interference fit between the plug and the liquid injection hole is adopted, and the interference of the plug and the liquid injection hole is 0.15-0.25mm, so that the plug and the liquid injection hole can be sealed, and the electrolyte is prevented from leaking; and the sealing is not too tight, and the disassembly is difficult.
According to one embodiment of the present application, the second side wall of the mounting cover has a plane thereon, and the elastic member abuts against the plane.
In this application, on the lateral wall of installation lid, the position department of elastic component sets up the plane, can make the elastic component by the comparatively concentrated in the direction of elastic force behind the compression, the elastic component sets up between first lateral wall and second lateral wall steadily.
According to one of the embodiments of the present application, the sealing plug has elasticity.
In this application, the sealing plug has elasticity, can make sealing plug and notes liquid hole metal wall friction can not produce the metal chip when installing, avoids leading to the battery short circuit.
According to another aspect of the present application, there is provided a battery including a case, a cell assembly disposed in the case, and a battery top cap assembly connected to the case, the battery top cap assembly including the above-described battery top cap assembly.
According to a third aspect of the present application, there is provided a battery pack comprising a battery pack, wherein the battery pack comprises the above-described battery.
According to a fourth aspect of the present application, there is provided a powered device, including the battery pack described above.
The battery provided by the application adopts the battery top cover assembly, can realize sealing and can be disassembled, realizes convenient installation and good sealing performance, and can prevent battery leakage when being convenient for secondary fluid infusion of the battery.
According to the technical scheme, the battery top cover assembly has the advantages that:
the battery top cap subassembly that this application provided includes apron, installation lid, connecting piece and sealing plug. The cover plate is provided with a liquid injection hole and a sinking platform hole, and the liquid injection hole is used for injecting electrolyte into the battery. The sinking platform hole is communicated with one side of the liquid injection hole, which is close to the outside of the battery, and is provided with a first side wall. The installation lid has the second lateral wall, and the connecting piece has the pretightning force, and the sealing plug includes the cock stem, and cock stem and notes liquid hole sealing fit are sealed with the notes liquid hole of battery top cap, can avoid revealing of electrolyte. The mounting cover is arranged in the sinking table hole, the connecting piece is arranged on the first side wall in an elastically telescopic manner, the second side wall is provided with a mounting hole, and one end of the connecting piece far away from the first side wall is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected; or the connecting piece is elastically telescopic and arranged on the second side wall, the first side wall is provided with a mounting hole, and one end of the connecting piece far away from the second side wall is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected. The protection of the sealing plug can be realized and the disassembly is convenient. The battery top cover assembly of the application realizes that welding is not needed for sealing, and the sealing is detachable, so that secondary liquid injection of the battery is convenient.
The battery that this application provided, including the casing, set up in the electric core subassembly of casing and connect in the battery top cap subassembly of casing, battery top cap subassembly includes foretell battery top cap subassembly, easy and simple to handle when the secondary annotates the liquid to can not cause destruction to seal structure, still can keep good sealed effect after the fluid infusion.
Drawings
Various objects, features and advantages of the present application will become more apparent from the following detailed description of the preferred embodiments of the application, when taken in conjunction with the accompanying drawings. The drawings are merely exemplary illustrations of the present application and are not necessarily drawn to scale. In the drawings, like reference numerals refer to the same or similar parts throughout. Wherein:
fig. 1 is a schematic structural view of a battery top cap assembly of the present application.
Fig. 2 is a schematic view of the structure of the mounting cover in fig. 1.
Fig. 3 is a top view of the battery top cap assembly of fig. 1.
Fig. 4 is a cross-sectional view A-A of fig. 3.
Fig. 5 is a schematic view of the structure of another embodiment of the battery top cap assembly of the present application.
Fig. 6 is a schematic view of the first half-cap and associated mating parts of fig. 3.
Fig. 7 is a schematic view of the second half cap and associated mating parts of fig. 3.
Fig. 8 is a top view of the battery top cap assembly of fig. 1.
Fig. 9 is a B-B cross-sectional view of fig. 8.
Fig. 10 is a schematic structural view of the battery of the present application.
The reference numerals are explained as follows:
10. a battery top cap assembly;
11. a cover plate;
111. a liquid injection hole;
112. sinking platform holes;
1121. a first sidewall;
1122. pin holes (mounting holes);
1124. a first pin hole (first mounting hole);
1125. a second pin hole (second mounting hole);
12. a mounting cover;
121. a top surface;
122. a second sidewall;
123. a groove;
124. a first half cover;
1241. a first recess;
125. a second half cover;
1251. a second notch;
13. an elastic member;
131. a first elastic member;
132. a second elastic member;
14. a sealing plug;
141. a plug;
142. a plug cap;
15. pins (connectors);
151. a nail body;
152. nailing columns;
154. a first pin (first plug);
1541. a first pin body;
1542. a first post;
155. a second pin (second plug);
1551. a second pin body;
1552. a second post;
16. a connecting piece;
161. a first connector;
162. a second connector;
127. a plane;
20. a housing;
30. a cell assembly;
100. and a battery.
Detailed Description
Exemplary embodiments that exhibit the features and advantages of the present application are described in detail in the following description. It will be understood that the present application is capable of various modifications in the various embodiments, none of which depart from the scope of the present application, and that the description and drawings are intended to be illustrative in nature and not to be limiting of the present application.
In the following description of various exemplary embodiments of the present application, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various exemplary structures, systems, and steps in which aspects of the present application may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present application. When introducing elements/components/etc. that are described and/or illustrated herein, the terms "first," "second," and "third," etc. are intended to mean that there are one or more of the elements/components/etc. The terms "comprising," "including," and "having" are intended to be inclusive and mean that there may be additional elements/components/etc., in addition to the listed elements/components/etc.
As shown in fig. 1 to 4, the battery top cap assembly 10 of the present application includes a cap plate 11, a mounting cap 12, a connector 16, and a sealing plug 14. The cover plate 11 has a pouring hole 111 and a counter hole 112, the counter hole 112 being provided in communication with one side of the pouring hole 111 near the outside of the battery, the counter hole 112 having a first side wall 1121. The mounting cap 12 has a top surface 121 and a second side wall 122, and a recess 123 is provided in the top surface 121 of the mounting cap 12. The connecting piece 16 has a pretension. The sealing plug 14 comprises a plug 141 and a plug cap 142 having a larger cross section than the plug 141, the plug cap 142 being arranged at one end of the plug 141. The plug 141 is in sealing fit with the liquid injection hole 111, the mounting cover 12 is arranged in the sinking platform hole 112, the connecting piece 16 is elastically and telescopically arranged on the first side wall 1121, the second side wall 122 is provided with a mounting hole, and one end of the connecting piece 16 far away from the first side wall 1121 is inserted into the mounting hole so as to detachably connect the mounting cover 12 and the cover plate 11; or the connecting member 16 is elastically and telescopically arranged on the second side wall 122, the first side wall 1121 is provided with a mounting hole 1122, and one end of the connecting member 16 far away from the second side wall 122 is inserted into the mounting hole 1122 so as to detachably connect the mounting cover 12 and the cover plate 11. . Through setting up sealing plug and installation lid, set up the elastic component between the lateral wall in the heavy bench hole of installation lid and apron, the cock stem and the notes liquid hole sealing fit of sealing plug for when needs annotate liquid to the battery, only need take off the installation lid through adjusting the elastic component, and take off the sealing plug can realize annotating liquid. The battery top cover assembly can avoid adopting welding to seal, realizes sealing and disassembly, and is convenient for secondary liquid injection of the battery.
In the present embodiment, the length of the connector 16 in the state of not receiving the external force is greater than the depth of the mounting hole 1122. So that the connecting piece is inserted into the mounting hole and is pressed by the bottom of the mounting hole, and the mounting cover can be detachably mounted into the sinking table hole.
In the present embodiment, the connector 16 includes the elastic member 13 and the plug (pin) 15, one end of the plug 15 is inserted into the mounting hole (pin hole) 1122, and the elastic member 13 is connected to the other end of the plug 15. The pin provides certain support and guiding effect for the elastic piece, so that the elastic piece is more stable.
In this embodiment, the pin 15 includes a pin body 151 and a pin post 152 having a smaller cross-sectional area than the pin body 151, the pin post 152 is disposed at one end of the pin body 151, the pin body 151 is inserted into the pin hole 1122, and the elastic member 12 is sleeved on the pin post 152. The pin is designed into two parts with different thicknesses, the thicker pin body is matched with the pin hole, the thinner pin column is matched with the elastic piece, and therefore when the elastic piece is compressed, the elastic piece cannot be compressed again when the second side wall of the mounting cover abuts against the pin column of the pin, and therefore damage caused by plastic deformation caused by unlimited compression of the elastic piece is avoided.
The shape of the groove 123 may be rectangular or elliptical, or may be other shapes, and the groove 123 may or may not penetrate in the thickness direction of the mounting cover. The surface of the mounting cap 12 in contact with the sealing plug 14 may also be provided with a recess for receiving the plug cap 142 of the sealing plug and the sealing engagement between the mounting cap and the cap of the sealing plug may be selected as the case may be.
It should be noted that the sealing plug may also be a wedge-shaped plug without a plug cap, and the liquid injection hole is adapted to the wedge-shaped plug. The elastic piece and the pin can be of a split structure or an integral structure.
In other embodiments, as shown in fig. 5-9, the mounting cap 12 includes a first half cap 124 and a second half cap 125, the first half cap 124 is provided with a first recess 1241, the second half cap 125 is provided with a second recess 1251, the first half cap 124 is abutted against the second half cap 125, and the first recess 1241 is abutted against and in communication with the second recess 1251. The installation cover adopts split setting, can simplify processing technology, reduces the processing degree of difficulty. The first half cover and the second half cover are arranged opposite to each other, and when sealing can be realized, the first half cover and the second half cover are close to each other to realize closing. The first recess communicates with the second recess, and when the seal is to be removed, the first and second cover halves can be opened by the interconnected grooves.
In the present embodiment, the connecting member 16 includes a first connecting member 161 and a second connecting member 162, the first connecting member 161 is disposed between the first half cover 124 and the first side wall 1121 of the counter bore 112, the second connecting member 162 is disposed between the second half cover 125 and the first side wall 1121 of the counter bore 112, and the axes of the first connecting member 161 and the second connecting member 162 are collinear. By arranging the first connecting piece and the second connecting piece with the axes collinear, the first half cover and the second half cover can be tightly and stably butted under the action of elastic force to form the mounting cover.
In the present embodiment, the first connector 161 includes a first elastic member 131 and a first socket (first pin) 154, the second connector 162 includes a second elastic member 132 and a second socket (second pin) 155, the mounting hole includes a first mounting hole (first pin hole 1124) and a second mounting hole (second pin hole 1125), one end of the first pin 154 is inserted into the first pin hole 1124, the first elastic member 131 is connected to the other end of the first pin 154, one end of the second pin 155 is inserted into the second pin hole 1125, and the second elastic member 132 is connected to the other end of the second pin 155. Through the first pin and the second pin that set up respectively, can realize the support to the elastic component for the elastic component is more stable, and the pin provides certain direction for the flexible of elastic component.
In this embodiment, first pin 154 includes a first pin 1541 and a first pin 1542 having a smaller cross-sectional area than first pin 1541, first pin 1542 being disposed at one end of first pin 1541, first pin 1541 being mated with first pin hole 1124; second pin 155 includes a second pin 1551 and a second pin 1552 having a smaller cross-sectional area than second pin 1551, second pin 1552 being disposed at one end of second pin 1551, second pin 1551 being mated with second pin aperture 1125. The pin is designed into two parts with different thicknesses, and the thicker pin body is matched with the pin hole, so that the strength of the pin can be improved, and the material is saved.
In this embodiment, the first elastic member 131 is sleeved on the first pin 1542, and the second elastic member 132 is sleeved on the second pin 1552. The thinner nail column is matched with the elastic piece, so that when the elastic piece is compressed, the elastic piece cannot be recompressed when the second side wall of the mounting cover abuts against the nail column of the pin, and the elastic piece is prevented from being damaged due to plastic deformation caused by unlimited compression.
In the above embodiment, it should be noted that the first recess 1241 and the second recess 1251 are abutted and mutually communicated to form the groove 123. An extension of the axis of the elastic member 13 may pass through the groove 123. The extension line of the axis of the elastic piece passes through the groove, so that the compression of the elastic piece can be realized through the groove in a labor-saving manner when the seal is disassembled, and the mounting cover is disassembled.
In the above embodiment, the plug 141 is in interference fit with the pouring orifice 111, and the interference of the plug 141 with the pouring orifice 111 is 0.15-0.25mm. The interference is 0.15-0.25mm through the interference fit of the plug and the liquid injection hole, so that the sealing of the plug and the liquid injection hole can be realized, and the leakage of electrolyte is prevented; and the sealing is not too tight, and the disassembly is difficult. The interference may be 0.18mm, 0.2mm, 0.22mm, etc.
In the above embodiment, the second side wall 122 of the mounting cover 12 has the flat surface 127, and the elastic member 13 abuts against the flat surface 127. The side wall of the mounting cover is provided with the plane at the position of the elastic piece, so that the direction of the elastic force after the elastic piece is compressed is concentrated, and the elastic piece is stably arranged between the first side wall and the second side wall.
In the above-described embodiment, the sealing plug 14 has elasticity. The sealing plug can be made of rubber, further can be made of silica gel, and can avoid metal scraps generated by friction between the sealing element and the metal liquid injection hole wall, so that the metal scraps are prevented from falling into electrolyte to cause short circuit.
As shown in fig. 10, the present application further provides a battery 100, where the battery 100 includes a housing 20, a battery cell assembly 30 disposed in the housing 20, and a battery top cap assembly 10 connected to the housing 20, the housing 20 has an accommodating cavity and an opening communicating with the accommodating cavity and an external space, the battery cell assembly 30 is disposed in the accommodating cavity and fixedly connected to the bottom of the housing 20, the battery top cap assembly 10 is fixedly connected to the housing 20 and seals the opening of the housing 20, and the battery top cap assembly 10 is further connected to the battery top cap assembly 30.
As described in the foregoing embodiments, the battery top cover assembly 10 is combined with the battery top cover assembly 10, and the battery top cover assembly is sealed and detachable, so that the battery 100 can be conveniently replenished with electrolyte, and the secondary use of the battery 100 can be conveniently realized.
The present application also provides a battery pack comprising a battery pack, wherein the battery pack comprises the battery shown in fig. 10.
The application also provides electric equipment, and the battery pack is adopted. The electric equipment may take various forms, such as cellular phones, portable devices, notebook computers, battery cars, ships, spacecrafts, electric toys and electric tools, etc., for example, spacecrafts including airplanes, rockets, space planes and spacecraft, etc., electric toys including fixed or mobile electric toys, such as game machines, electric car toys, electric ship toys and electric plane toys, etc., electric tools including metal cutting electric tools, grinding electric tools, fitting electric tools and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planners.
It should be noted herein that the battery top cap assembly shown in the drawings and described in the present specification is only a few examples of the wide variety of battery top cap assemblies that can employ the principles of the present application. It should be clearly understood that the principles of the present application are in no way limited to any of the details or any of the components of the battery top cap assembly shown in the drawings or described in the present specification.
The foregoing is a detailed description of several exemplary embodiments of the battery top cap assembly according to the present application, and the use of the battery top cap assembly according to the present application will be described below as an exemplary embodiment.
Referring to fig. 1 to 4 and fig. 10, the use process of the battery top cap assembly proposed in the present application is: the sealing plug is arranged in the liquid injection hole, the plug of the sealing plug and the liquid injection hole are in a small interference fit mode, the interference is 0.15-0.25mm, at the moment, the plug cap of the sealing plug is positioned in the sinking table hole, then the pin is arranged in the pin hole on the first side wall of the sinking table hole, the elastic piece is sleeved on the pin, the mounting cover is covered on the sealing plug after the elastic piece is compressed, then the elastic piece is released, the elastic piece is abutted with the plane on the second side wall of the mounting cover, and at the moment, the elastic force of the elastic piece can stably extrude the mounting cover in the sinking table hole.
When the secondary fluid infusion is needed, the mounting cover can be taken down through the groove compression elastic piece, then the sealing plug is taken down, and the secondary fluid infusion can be carried out on the battery.
Referring to fig. 5 to 10, the use process of the battery top cap assembly proposed in the present application is: the sealing plug is arranged in the liquid injection hole, the plug of the sealing plug and the liquid injection hole are in a small interference fit mode, the interference is 0.15-0.25mm, at the moment, the plug cap of the sealing plug is positioned in the sinking table hole, then the pin is respectively arranged in the pin hole on the first side wall of the sinking table hole, the elastic piece is respectively sleeved in the pin, the first half cover and the second half cover are butted to form the mounting cover, the mounting cover is covered on the sealing plug after the elastic piece is compressed, then the elastic piece is released, the elastic piece is respectively butted with the plane on the second side wall of the mounting cover, and at the moment, the elastic force of the elastic piece can stably extrude the mounting cover in the sinking table hole.
When the secondary fluid infusion is needed, the mounting cover can be taken down through the groove compression elastic piece, then the sealing plug is taken down, and the secondary fluid infusion can be carried out on the battery.
Through the use of the battery top cover assembly of this application, can obtain the battery top cover assembly of this application, through setting up elastic component and installation lid, can avoid adopting the welding to seal, realized sealed detachable, sealed effectual and can realize the secondary fluid infusion of battery.
To sum up, the battery top cap subassembly that this application provided includes apron, installation lid, connecting piece and sealing plug. The cover plate is provided with a liquid injection hole and a sinking platform hole, and the liquid injection hole is used for injecting electrolyte into the battery. The sinking platform hole is communicated with one side of the liquid injection hole, which is close to the outside of the battery, and is provided with a first side wall. The installation lid has the second lateral wall, and the connecting piece has the pretightning force, and the sealing plug includes the cock stem, and cock stem and notes liquid hole sealing fit are sealed with the notes liquid hole of battery top cap, can avoid revealing of electrolyte. The mounting cover is arranged in the sinking table hole, the connecting piece is arranged on the first side wall in an elastically telescopic manner, the second side wall is provided with a mounting hole, and one end of the connecting piece far away from the first side wall is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected; or the connecting piece is elastically telescopic and arranged on the second side wall, the first side wall is provided with a mounting hole, and one end of the connecting piece far away from the second side wall is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected. The mounting cover can protect the sealing plug and is convenient to detach. The battery top cover assembly of the application realizes that welding is not needed for sealing, and the sealing is detachable, so that secondary liquid injection of the battery is convenient.
The battery that this application provided, including foretell battery top cap subassembly, sealed effect is good, can supply electrolyte, realizes the secondary use of battery to easy and simple to handle, need not destroy battery top cap subassembly.
Exemplary embodiments of the battery top cap assembly and the battery presented herein are described and/or illustrated in detail above. Embodiments of the present application are not limited to the specific embodiments described herein, but rather, components and/or steps of each embodiment may be utilized independently and separately from other components and/or steps described herein. Each component and/or each step of one embodiment may also be used in combination with other components and/or steps of other embodiments. When introducing elements/components/etc. that are described and/or illustrated herein, the terms "a," "an," and "the" are intended to mean that there are one or more of the elements/components/etc.
The embodiments of the present application are not limited to the specific embodiments described herein, but rather, components of each embodiment may be utilized independently and separately from other components described herein. Each component of one embodiment may also be used in combination with other components of other embodiments. In the description of the application embodiments, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the application embodiments and simplifying the description, and do not indicate or imply that the devices or units to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the application embodiments.
In the description of the present specification, the terms "one embodiment," "some embodiments," "other embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an application embodiment. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In the examples, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more, unless expressly defined otherwise. The terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; "coupled" may be directly coupled or indirectly coupled through intermediaries. The specific meaning of the terms in the embodiments can be understood by those of ordinary skill in the art according to the specific circumstances.
The above is only a preferred embodiment of the application embodiment, and is not intended to limit the application embodiment, and various modifications and changes may be made to the application embodiment by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the application should be included in the protection scope of the embodiments of the application.
Claims (10)
1. A battery top cap assembly, characterized in that: comprising the following steps:
the cover plate is provided with a liquid injection hole and a sinking table hole, the sinking table hole is communicated with one side of the liquid injection hole, which is close to the outside of the battery, and the sinking table hole is provided with a first side wall;
a mounting cap having a second sidewall;
the connecting piece is provided with a pretightening force;
a sealing plug comprising a plug stem;
the plug is in sealing fit with the liquid injection hole, the mounting cover is arranged in the sinking table hole, the connecting piece is elastically and telescopically arranged on the first side wall, the second side wall is provided with a mounting hole, and one end of the connecting piece, which is far away from the first side wall, is inserted into the mounting hole so that the mounting cover and the cover plate are detachably connected; or,
the connecting piece is elastically and telescopically arranged on the second side wall, the first side wall is provided with a mounting hole, and one end of the connecting piece far away from the second side wall is inserted into the mounting hole so as to detachably connect the mounting cover and the cover plate;
the mounting cover comprises a first half cover and a second half cover, a first notch is formed in the first half cover, a second notch is formed in the second half cover, the first half cover and the second half cover are in butt joint, and the first notch and the second notch are in butt joint and are mutually communicated;
the connecting piece comprises a first connecting piece and a second connecting piece, the first connecting piece is arranged between the first half cover and the first side wall of the sinking platform hole, the second connecting piece is arranged between the second half cover and the first side wall of the sinking platform hole, and the axes of the first connecting piece and the second connecting piece are collinear;
the first connecting piece comprises a first elastic piece and a first plug-in piece, the second connecting piece comprises a second elastic piece and a second plug-in piece, the mounting hole comprises a first mounting hole and a second mounting hole, one end of the first plug-in piece is inserted into the first mounting hole, the first elastic piece is connected with the other end of the first plug-in piece, one end of the second plug-in piece is inserted into the second mounting hole, and the second elastic piece is connected with the other end of the second plug-in piece;
the first plug connector is a first pin, the second plug connector is a second pin, the first mounting hole is a first pin hole, the second mounting hole is a second pin hole, the first pin comprises a first pin body and a first pin column with the cross section area smaller than that of the first pin body, the first pin column is arranged at one end of the first pin body, and the first pin body is inserted into the first pin hole; the second pin comprises a second pin body and a second pin column with the cross section area smaller than that of the second pin body, the second pin column is arranged at one end of the second pin body, and the second pin body is inserted into the second pin hole.
2. The battery top cap assembly of claim 1, wherein: the length of the connecting piece in the state of not receiving external force is larger than the depth of the mounting hole.
3. The battery top cap assembly of claim 1, wherein: the mounting cover has a top surface provided with a groove.
4. The battery top cap assembly of claim 1, wherein: the first elastic piece is sleeved on the first nail column, and the second elastic piece is sleeved on the second nail column.
5. The battery top cap assembly of any one of claims 1-4, wherein the plug is in interference fit with the fill port, the plug having an interference of 0.15-0.25mm with the fill port.
6. The battery top cap assembly according to any one of claims 1 to 4, wherein the second side wall of the mounting cap has a flat surface thereon, and the connection member abuts against the flat surface.
7. The battery top cap assembly of any one of claims 1-4, wherein the sealing plug is resilient.
8. A battery comprising a housing, a cell assembly disposed within the housing, and a battery top cap assembly connected to the housing, wherein the battery top cap assembly comprises the battery top cap assembly of any one of claims 1-4.
9. A battery pack comprising a battery pack, wherein the battery pack comprises the battery of claim 8.
10. A powered device comprising the battery pack of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211378145.6A CN115693052B (en) | 2022-11-04 | 2022-11-04 | Battery top cover assembly, battery pack and electric equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211378145.6A CN115693052B (en) | 2022-11-04 | 2022-11-04 | Battery top cover assembly, battery pack and electric equipment |
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| CN115693052A CN115693052A (en) | 2023-02-03 |
| CN115693052B true CN115693052B (en) | 2024-02-23 |
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Also Published As
| Publication number | Publication date |
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| CN115693052A (en) | 2023-02-03 |
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