CN117096520A - Sealing device and battery pack - Google Patents
Sealing device and battery pack Download PDFInfo
- Publication number
- CN117096520A CN117096520A CN202311079912.8A CN202311079912A CN117096520A CN 117096520 A CN117096520 A CN 117096520A CN 202311079912 A CN202311079912 A CN 202311079912A CN 117096520 A CN117096520 A CN 117096520A
- Authority
- CN
- China
- Prior art keywords
- sealing
- piece
- locking
- base
- fixing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 147
- 210000000078 claw Anatomy 0.000 claims description 12
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 230000013011 mating Effects 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 206010014357 Electric shock Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
-
- 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
Abstract
The invention provides a sealing device and a battery pack, which belong to the technical field of vehicle parts, wherein the sealing device is used for being installed on a shell of the battery pack and comprises a base, a sealing cover and a locking assembly, the sealing cover is connected to the shell through the base, a first part of the sealing cover is movably connected to one side edge of the base, a second part of the sealing cover is opposite to a mounting hole and is used for sealing the mounting hole, when the second part is moved, the first part rotates by taking one side edge of the base as a rotating part, so that the second part moves relative to the base to enable the mounting hole to be communicated with the outside, by the arrangement, the sealing of the mounting hole is realized, the sealing mode of the mounting hole in the prior art is changed, the sealing performance of the mounting hole before the wire harness is installed or after the wire harness is disassembled is ensured, and the technical problem that the mounting hole damages to the battery pack due to the sealing performance in the prior art is solved.
Description
Technical Field
The invention belongs to the technical field of vehicle parts, and particularly relates to a sealing device and a battery pack.
Background
The battery pack is formed by connecting a plurality of single batteries in series and parallel and is used as a power source and energy storage equipment of the new energy automobile.
In order to electrically connect the vehicle wire harness with the battery pack, a mounting hole is required to be formed in a shell of the battery pack so that a wiring terminal of the wire harness penetrates, an assembly window is required to be formed in the shell, after the wiring terminal is connected with an electronic component in the battery pack, an operation space is required to be provided for a fixing bolt and an assembly tool through the assembly window so as to ensure the connection stability of the wiring terminal and the electronic component, the wiring terminal and the electronic component are fixedly connected through the bolt, and finally, the assembly window is sealed through a sealing cover plate.
However, before installing the binding post, need seal the processing through the blanking cover to the mounting hole, but current blanking cover only installs through the mode that the lid closes, the blanking cover has the poor problem that drops easily, and in the special circumstances that the vehicle needs maintenance, after the binding post is dismantled from the battery package, it is difficult to find suitable blanking cover in order to seal the mounting hole again on the scene, and the diameter of mounting hole is usually greater than 12mm, the mounting hole of exposing can not prevent that finger or other metalwork from accidentally inserting, there is the electric shock risk, and other impurity can get into the battery package from the mounting hole of poor seal inside, and then cause the damage to the battery package.
Disclosure of Invention
Accordingly, the present invention is directed to a sealing device and a battery pack, so as to solve the technical problem that the conventional battery pack in the prior art is difficult to seal the mounting hole.
The invention provides a sealing device, which is used for being installed on a shell of a battery pack, and sealing an installation hole on the shell through the sealing device, wherein the sealing device comprises:
a base;
the sealing cover is connected to the shell through the base, a first part of the sealing cover is movably connected to one side edge of the base, a second part of the sealing cover is opposite to the mounting hole and used for sealing the mounting hole, and when the second part is moved, the first part rotates by taking one side edge of the base as a rotating part, so that the second part moves relative to the base, and the mounting hole is communicated with the outside;
the locking assembly comprises a locking piece and a limiting piece which are arranged on the base, one end of the locking piece penetrates through part of the side edge of the sealing cover and is used for limiting the movement of the second component relative to the base, and the other end of the locking piece is used for extending into the limiting part of the limiting piece so as to limit the movement of the locking piece in at least one direction through the limiting part;
the locking piece is elastically connected to the base, so that one end of the locking piece is continuously limited by the limiting portion, and one end, close to the limiting portion, of the locking piece is separated from the limiting range of the limiting portion by reversely moving the other end of the locking piece, so that the second component can move relative to the base.
Further, at least two locking assemblies are arranged, and at least two locking assemblies are symmetrically arranged on two sides of the base by taking the central line of the sealing cover as a center;
wherein, at least two through holes for the locking piece to extend in at least two locking components are formed on the sealing cover.
Further, the locking assembly further comprises an elastic piece, one end of the elastic piece is connected with the locking piece, and the other end of the elastic piece is connected with the outside of the sealing cover, so that the locking piece is elastically connected to the base through the elastic piece.
Further, the locking piece comprises a push rod and a lock bolt, wherein one end of the push rod is connected between two ends of the lock bolt, and the other end of the push rod penetrates through one side of the sealing cover to be used for limiting the movement of the second component relative to the base;
one end of the lock bolt is connected with the elastic piece, and the other end of the lock bolt is arranged opposite to the limiting part of the limiting piece so as to limit the movement of the lock bolt in at least one direction through the limiting part;
wherein, the sealing cover is provided with a through hole for the ejector rod to pass through.
According to the battery pack, the battery pack comprises a shell, an electronic module arranged in the shell, a mounting hole arranged on the shell and used for a wire harness to penetrate through, and the sealing device, wherein the sealing device is used for being mounted on the shell to seal the mounting hole through the sealing device.
Further, the sealing cover in the sealing device is provided with a plurality of concave parts which are opposite to a plurality of wire harness terminals on the wire harness;
when a plurality of wire harness terminals extend into the corresponding concave parts, the side walls of the wire harness terminals apply pressure to one end of the locking piece, so that the locking piece moves reversely, and one end, close to the limiting part, of the locking piece is separated from the limiting range of the limiting part.
Further, the battery pack further comprises a fixing device, wherein the fixing device is arranged in the shell and is used for fixedly connecting the wire harness terminal with the opposite conductive terminal in the battery module.
Further, the fixing device comprises a first fixing bracket and a second fixing bracket which are arranged on the electronic module, the first fixing bracket and the second fixing bracket are respectively arranged on two opposite sides of the conductive terminal, and a gap for accommodating the conductive terminal and the wire harness terminal to extend in is arranged between the first fixing bracket and the second fixing bracket;
one of the first fixing bracket and the second fixing bracket is internally provided with a fixing piece, and the other is provided with a matching piece opposite to the fixing piece;
by rotating the fixing piece, one end of the fixing piece moves towards the direction of the matching piece, so that the conductive terminal and the wire harness terminal are fixedly connected through the fixing piece;
wherein, set up on the casing with the assembly opening that the mounting is relative, can dismantle on the assembly opening and be connected with the breather valve.
Further, the fixing piece is arranged on the first fixing bracket, and the matching piece is arranged on the second fixing bracket;
the first fixing support is provided with a plurality of elastic claws, the elastic claws are surrounded to form a clamping space for clamping the fixing piece, and the fixing piece is clamped in the clamping space.
Further, the fixing device further comprises a guide sleeve arranged on the first fixing support, the guide sleeve is opposite to the fixing piece, and the opening size of the guide sleeve is increased from one end close to the first fixing support to the other end.
Compared with the prior art, the invention has the beneficial effects that:
1. in the sealing device provided by the invention, the mounting hole can be sealed through the arrangement of the base and the sealing cover, specifically, the first part of the sealing cover can be movably connected to one side edge of the base, the second part is used for sealing the mounting hole, in some practical cases, the first part and one side edge of the base can be rotationally connected in a hinge mode, when the mounting hole is required to be communicated with the outside, the first part drives the second part to rotate by an external staff to enable the mounting hole to be communicated with the outside, otherwise, when the second part is not subjected to external thrust, the sealing cover can cover the mounting hole, so that the sealing of the mounting hole is realized, the sealing mode of the mounting hole in the prior art is changed, the sealing property of the mounting hole before the wire harness is mounted or after the wire harness is dismounted is ensured, and the technical problem that the mounting hole damages to a battery pack due to the sealing property in the prior art is solved.
2. The sealing device further comprises a locking component, the locking component can perform a locking function on the sealing cover, so that the problem that an operator can open the sealing cover by mistake and damage is caused to the battery pack can be prevented, and particularly, the locking component comprises the locking component and the limiting component, one end of the locking component penetrates through part of the side edge of the sealing cover and is used for limiting the movement of the second component relative to the base, the other end of the locking component is used for extending into the limiting part of the limiting component, the locking component is limited in at least one direction through the limiting part, the locking component is elastically connected to the base, namely, one end of the locking component is limited by the limiting component through the elastic connection of the locking component, so that the sealing cover can be locked, otherwise, when the sealing cover needs to be opened, the ejector rod drives the lock bolt to be separated from the limiting range of the limiting component, namely, the sealing cover and the lock bolt can move simultaneously, and the sealing cover can be opened, so that the sealing performance and the safety performance of the sealing cover are guaranteed, and the situation that the sealing cover is opened by mistake in the operation process is avoided.
Drawings
Fig. 1 is a perspective view of a sealing device according to a first embodiment of the present invention mounted on a battery pack;
fig. 2 is a perspective view of a sealing device according to a first embodiment of the present invention installed in a battery pack;
FIG. 3 is a schematic view of a mounting hole according to a first embodiment of the present invention;
FIG. 4 is a perspective view of a seal device according to a first embodiment of the present invention;
FIG. 5 is another perspective view of the seal device of the first embodiment of the present invention;
FIG. 6 is a top cross-sectional view of a first embodiment of the seal of the present invention;
fig. 7 is an enlarged view of a portion a in fig. 5;
FIG. 8 is a top cross-sectional view of a first use state of the sealing device in the first embodiment of the present invention;
FIG. 9 is a top cross-sectional view of a second use state of the sealing device in the first embodiment of the present invention;
FIG. 10 is a side cross-sectional view of a third use condition of the seal assembly of the first embodiment of the present invention;
fig. 11 is a perspective view of a battery pack according to a second embodiment of the present invention;
FIG. 12 is a front cross-sectional view of a second embodiment of the securing device of the present invention;
fig. 13 is a perspective view of a first fixing bracket according to a second embodiment of the present invention;
FIG. 14 is a perspective view of a seal assembly according to a second embodiment of the present invention;
fig. 15 is an assembly view of a harness terminal and a conductive terminal in a second embodiment of the present invention;
fig. 16 is an assembly view of a fixing member and a mating member in a second embodiment of the present invention.
Description of the drawings: 100. a sealing device; 110. a base; 120. sealing cover; 121. a first component; 122. a second component; 130. a locking assembly; 131. a locking member; 1311. a push rod; 1312. a lock bolt; 132. a limiting piece; 1321. a limit part; 140. an elastic member; 150. a through hole; 200. a battery pack; 210. a housing; 220. an electronic module; 230. a mounting hole; 240. a recessed portion; 300. a fixing device; 310. a first fixing bracket; 320. a second fixing bracket; 330. a fixing member; 340. a mating member; 350. an elastic claw; 360. a guide sleeve; 400. a ventilation valve; 500. a harness terminal; 600. and a conductive terminal.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
First embodiment
Referring to fig. 1 to 10, a sealing device 100 is shown for mounting on a housing 210 of a battery pack 200, and a mounting hole 230 on the housing 210 is sealed by the sealing device 100.
It should be noted that, the sealing device 100 includes a base 110, a sealing cover 120, and a locking assembly 130;
the sealing cover 120 is connected to the housing 210 through the base 110, the first part 121 of the sealing cover 120 is movably connected to one side of the base 110, the second part 122 of the sealing cover 120 is opposite to the mounting hole 230 for sealing the mounting hole 230, and when the second part 122 is moved, the first part 121 rotates with one side of the base 110 as a rotation part, so that the second part 122 moves relative to the base 110, and the mounting hole 230 is communicated with the outside.
It should be noted that, in some alternative embodiments, fasteners may be disposed at each end of the base 110, and the fasteners may be at least one of bolts or screws to fix the base 110 to the housing 210 of the battery pack 200, which is not particularly limited herein.
By installing the sealing device 100 provided in this embodiment on the housing 210 of the battery pack 200, the mounting hole 230 on the housing 210 may be sealed, where the first part 121 of the sealing cover 120 may be movably connected to a side edge of the base 110, and the second part 122 seals the mounting hole 230, in some practical cases, the first part 121 and a side edge of the base 110 may form a hinge to be rotationally connected, when the mounting hole 230 needs to be communicated with the outside, a thrust force is applied to the second part 122 by an external worker, so that the first part 121 drives the second part 122 to rotate, thereby communicating the mounting hole 230 with the outside, whereas when the second part 122 is not subject to the external thrust force, the sealing cover 120 may cover the mounting hole 230, thereby realizing sealing of the mounting hole 230, changing the sealing manner of the mounting hole 230 in the prior art, and guaranteeing the tightness of the mounting hole 230 before or after the harness is installed, so as to solve the technical problem that the tightness of the mounting hole 230 causes damage to the battery pack 200 in the prior art.
In some preferred embodiments, a torsion spring or other types of elastic components may be disposed between the first component 121 and one side of the base 110, when the torsion spring is adopted, the second component 122 may be tightly attached to the housing 210 by using the elastic coefficient of the torsion spring, so as to further ensure the sealing performance of the mounting hole 230, and the larger the opening angle of the sealing cover 120 is, the larger the resilience force of the torsion spring is, the sealing cover 120 is driven by the torsion spring to automatically restore to be closed, in other preferred embodiments, a sealing pad may be disposed on the surface of the second component 122, so that the sealing performance of the mounting hole 230 may be further ensured by using the sealing performance of the sealing pad and the tight attachment of the second component 122 to the housing 210.
In addition, when the vehicle is in maintenance and the wire harness is detached from the battery pack 200, in order to avoid a situation in which a worker's finger or other metal member is accidentally inserted into the battery pack 200 through the sealing cap 120, in the present embodiment, the movement of the second member 122 is restricted by adding the locking assembly 130.
Referring to fig. 6 to 7, specifically, the locking assembly 130 includes a locking member 131 and a limiting member 132 disposed on the base 110, wherein one end of the locking member 131 penetrates through a portion of a side edge of the sealing cover 120 and is used for limiting the movement of the second component 122 relative to the base 110, and the other end of the locking member 131 is used for extending into a limiting portion 1321 of the limiting member 132 so as to limit the movement of the locking member 131 in at least one direction through the limiting portion 1321;
the locking member 131 is elastically connected to the base 110, such that one end of the locking member 131 is continuously limited by the limiting portion 1321, and by moving the other end of the locking member 131 reversely, one end of the locking member 131, which is close to the limiting portion 1321, is separated from the limiting range of the limiting portion 1321, so that the second component 122 can move relative to the base 110.
Further, the locking assembly 130 further includes an elastic member 140, one end of the elastic member 140 is connected to the locking member 131, and the other end is connected to the outside of the sealing cap 120, so that the locking member 131 is elastically connected to the base 110 through the elastic member 140.
Specifically, the locking member 131 includes a stem 1311 and a locking bolt 1312, wherein one end of the stem 1311 is connected between two ends of the locking bolt 1312, and the other end of the stem 1311 penetrates through one side of the sealing cover 120 to be used for limiting the movement of the second component 122 relative to the base 110, one end of the locking bolt 1312 is connected with the elastic member 140, and the other end is opposite to the limiting portion 1321 of the limiting member 132 to limit the movement of the locking bolt 1312 in at least one direction through the limiting portion 1321, wherein the sealing cover 120 is provided with a through hole 150 through which the stem 1311 penetrates.
Referring to fig. 7-9 again, in this embodiment, the end of the lock bolt 1312 near the limiting member 132 and the limiting member 132 may be two hook structures that are matched with each other, in a practical situation, a force is applied to one end of the ejector rod 1311 to move the lock bolt 1312 in the direction of K1, and then the ejector rod 1311 drives the lock bolt 1312 to depart from the limiting range of the limiting member 132, that is, the sealing cover 120 and the lock bolt 1312 can move simultaneously, and the sealing cover 120 can be opened; in contrast, when the sealing cover 120 needs to seal the mounting hole 230, the sealing cover 120 reversely rotates, and then one end of the lock bolt 1312 is pushed again, so that the other end of the lock bolt 1312 is limited by the limiting member 132, thereby completing the locking function of the second member 122, and it should be noted that, in fig. 7 to 9, in the actual use state of the sealing cover 120, the wire harness terminal 500 is utilized to push the sealing cover 120.
When one end of the lock bolt 1312 is separated from the limit range of the limit piece 132, the lock bolt 1312 will be in an initial state due to the action of the elastic piece 140, so that when the seal cover 120 rotates reversely, one end of the lock bolt 1312 can be automatically limited by the limit piece 132, in some preferred embodiments, the opposite sides of the lock bolt 1312 and the limit piece 132 can be provided with inclined planes, that is, the weight of the seal cover 120 and the guiding action of the inclined planes can be utilized to make one end of the lock bolt 1312 move along the inclined planes, that is, the ejector rod 1311 can be driven to move towards the direction of K1, thereby completing the self-locking function and increasing the practicability of the invention.
In addition, in some preferred embodiments, at least two locking assemblies 130 are provided, and at least two locking assemblies 130 are symmetrically disposed on two sides of the base 110 with respect to the center line of the sealing cover 120;
the at least two through holes 150 on the sealing cover 120 for the locking members 131 of the at least two locking assemblies 130 to extend into, and the plurality of locking assemblies 130 are provided to limit the movement of the second component 122, so as to ensure the safety of the sealing device 100 of the present invention, and avoid the problem that in actual situations, the sealing cover 120 is opened due to the fact that any locking assembly 130 is touched by mistake.
In summary, compared with the sealing mode of the mounting hole on the battery pack shell in the prior art, the sealing device provided by the first embodiment of the invention has at least the following beneficial effects:
1. in the sealing device 100 provided by the invention, the mounting hole 230 can be sealed by arranging the base 110 and the sealing cover 120, specifically, the first part 121 of the sealing cover 120 can be movably connected to one side edge of the base 110, the second part 122 can seal the mounting hole 230, in some practical cases, the first part 121 and one side edge of the base 110 can form a hinge to be rotationally connected, when the mounting hole 230 is required to be communicated with the outside, an external worker applies thrust to the second part 122, so that the first part 121 drives the second part 122 to rotate, thereby the mounting hole 230 can be communicated with the outside, otherwise, when the second part 122 is not subjected to the external thrust, the sealing cover 120 can cover the mounting hole 230, thereby realizing the sealing of the mounting hole 230, changing the sealing mode of the mounting hole 230 in the prior art, and solving the technical problem that the mounting hole 230 is damaged due to the sealing property in the prior art when the wire harness is disassembled.
2. In the sealing device 100 provided by the invention, the locking assembly 130 is further included, which can perform a locking function on the sealing cover 120, so that the problem that an operator opens the sealing cover 120 by mistake and further damages the battery pack 200 can be prevented, specifically, the locking assembly 130 includes the locking member 131 and the limiting member 132, one end of the locking member 131 penetrates through a part of the side edge of the sealing cover 120 and is used for limiting the movement of the second component 122 relative to the base 110, the other end of the locking member 131 is used for extending into the limiting portion 1321 of the limiting member 132, so that the locking member 131 is limited by movement in at least one direction through the limiting portion 1321, and the locking member 131 is elastically connected to the base 110, that is, one end of the locking member 131 is limited by the limiting member 132 through the elastic connection, so that the sealing cover 120 can be locked, when the sealing cover 120 needs to be opened, the one end of the ejector rod 1311 drives the lock bolt 1312 to be separated from the limiting range of the limiting member 132, that is, and the sealing cover 120 can be simultaneously moved together with the lock bolt 1312, so that the sealing cover 120 can be opened, and the sealing cover 120 can be ensured to be opened by the setting and the performance of the sealing cover 120 can be safely opened in the process.
Second embodiment
Referring to fig. 11-16, a battery pack according to a second embodiment of the present invention is provided, and the battery pack according to the present invention is different from the sealing device according to the first embodiment in that the battery pack 200 of the present invention includes a housing 210, an electronic module 220 disposed in the housing 210, a mounting hole 230 disposed on the housing 210 for a wire harness to pass through, and the sealing device 100 according to the first embodiment, wherein the sealing device 100 is configured to be mounted on the housing 210 to seal the mounting hole 230 through the sealing device 100.
Specifically, referring to fig. 13, in the present embodiment, a sealing cover 120 of a sealing device 100 is provided with a plurality of concave portions 240 opposite to a plurality of harness terminals 500 on a harness;
when the plurality of harness terminals 500 extend into the corresponding concave portions 240, the side walls of the harness terminals 500 apply pressure to one end of the locking member 131, so that the locking member 131 moves reversely, and one end of the locking member 131, which is close to the limiting portion 1321, is separated from the limiting range of the limiting portion 1321.
That is, in a practical situation, the plurality of wire harness terminals 500 are provided, in order to ensure that each wire harness terminal 500 is installed in place, the plurality of wire harness terminals 500 can be correspondingly inserted into the corresponding concave parts 240 through the plurality of concave parts 240, and positioning of the wire harness terminals 500 can be completed, that is, in the wire harness assembling process, the wire harness terminals 500 move towards the sealing cover 120, the terminal chamfer of the wire harness terminals 500 is firstly contacted with one end of the ejector rod 1311, and the ejector rod 1311 pushes the lock bolt 1312 to move towards the unlocking direction, that is, the wire harness terminals 500 push the lock bolt 1312 to rotate inwards.
For ease of understanding, please refer to fig. 8-9 again, it should be noted that, since the plurality of concave portions 240 are provided, the entity between two adjacent concave portions 240 will be aligned with the notch on the wire harness terminal 500, and the plurality of wire harness terminals 500 will be installed in place, that is, the unmatched wire harness will be abutted by the entity between two adjacent concave portions 240 during the insertion process, that is, the ejector pins 1311 of the plurality of latches 1312 cannot be contacted simultaneously, that is, the sealing cover 120 cannot be unlocked and opened, so that incorrect assembly can be prevented, and in some preferred embodiments, the end portions of the ejector pins 1311 may be provided with inclined surfaces opposite to the chamfer on the wire harness terminal 500, so that the ejector pins 1311 can be moved in an assisted manner;
when the ejector pin 1311 is pushed by the wire harness terminal 500, one end of the lock pin 1312 is separated from the limit range of the limit piece 132, that is, the seal cover 120 is unlocked, and at this time, by inserting the wire harness terminal 500 further into the battery pack 200, the seal cover 120 can be pushed to rotate together with the lock pin 1312, that is, the seal cover 120 is gradually turned over and opened, the wire harness terminal 500 can be smoothly pushed through the mounting hole 230 to mount, it should be noted that, in order to prevent the wire harness terminal 500 from being blocked in the recess 240, in a practical case, the end of the wire harness close to the wire harness terminal 500 has an inclined surface, that is, when the seal cover 120 moves to a certain angle, the seal cover 120 can be pushed by the inclined surface of the wire harness itself, and then the wire harness terminal 500 is separated from the recess range of the recess 240 to continue moving.
It should be noted that, in order to ensure that the harness terminal 500 is fixedly connected with the conductive terminal 600 on the electronic module 220, the battery pack 200 of the present embodiment further includes a fixing device 300;
the fixing device 300 is provided in the case 210, and the fixing device 300 is used to fixedly connect the harness terminal 500 with the opposite conductive terminal 600 in the battery module.
Further, the fixing device 300 includes a first fixing bracket 310 and a second fixing bracket 320 disposed on the electronic module 220, the first fixing bracket 310 and the second fixing bracket 320 are respectively disposed on two opposite sides of the conductive terminal 600, and a gap for accommodating the conductive terminal 600 and the wire harness terminal 500 is disposed between the first fixing bracket 310 and the second fixing bracket 320;
one of the first fixing bracket 310 and the second fixing bracket 320 is provided with a fixing member 330, and the other is provided with a matching member 340 opposite to the fixing member 330;
by rotating the fixing member 330, one end of the fixing member 330 is moved toward the direction of the mating member 340 to fixedly connect the conductive terminal 600 and the harness terminal 500 by the fixing member 330;
wherein, the housing 210 is provided with an assembling opening opposite to the fixing member 330, and the assembling opening is detachably connected with the ventilation valve 400, as shown in fig. 1.
That is, in actual circumstances, after the wire harness terminal 500 passes through the mounting hole 230, the wire harness terminal 500 will be aligned with the conductive terminal 600, and the fixing member 330 is rotated through the mounting opening by an external mounting tool, so that one end of the fixing member 330 sequentially passes through the notches of the wire harness terminal 500 and the conductive terminal 600 and is connected with the mating member 340, thereby fixedly connecting the wire harness terminal 500 and the conductive terminal 600, and guaranteeing the stability after the connection of the two.
It should be noted that, in some preferred embodiments, the fixing member 330 may be a bolt, the mating member 340 may be a nut corresponding to the fixing member, which is not limited herein, and the driving interface of the fixing member 330 is an internal hexagonal spline interface, and the driving head is an external hexagonal spline interface correspondingly.
In other preferred embodiments, an insulating layer is provided on the drive interface of the fixture 330 or on the drive head surface of the assembly tool, so as to avoid the risk of electric shock in any case.
Further, the fixing element 330 is disposed on the first fixing bracket 310, and the matching element 340 is disposed on the second fixing bracket 320;
the first fixing bracket 310 is provided with a plurality of elastic claws 350, and the elastic claws 350 enclose a clamping space for clamping the fixing element 330, and the fixing element 330 is clamped in the clamping space, as shown in fig. 12.
In some preferred embodiments, a plurality of saw-tooth features are disposed on each of the elastic claws 350, and the fastening space surrounded by the plurality of elastic claws 350 clamps/limits the fastening member 330, and it should be noted that the size of the fastening space is smaller than the outer edge of the fastening member 330, that is, the diameter of the saw-tooth convex portion on the elastic claw 350 is smaller than the diameter of the flange surface of the fastening member 330, and the diameter of the saw-tooth concave portion on the elastic claw 350 is larger than the diameter of the flange of the fastening member 330.
That is, when the harness terminal 500 is required to be separated from the wire terminal, the fixing member 330 is separated from the range of the mating member 340 by rotating the fixing member 330 in the reverse direction, and the fixing member 330 is clamped by the plurality of elastic claws 350 in the clamping space, so that the fixing member 330 can be always positioned in the battery pack 200 for the pre-installation process when the next assembly is required, thereby achieving the purpose of simple operation.
It should be noted that, the fixing device 300 further includes a guide sleeve 360 disposed on the first fixing support 310, the guide sleeve 360 is opposite to the fixing member 330, and an opening of the guide sleeve 360 is enlarged from one end near the first fixing support 310 to the other end, that is, the guide sleeve 360 guides the assembly tool, so that the driving interface of the assembly tool can be directly inserted into the driving interface of the fixing member 330, and further the fixing member 330 is installed.
Further, in some embodiments, the battery pack 200 includes a case, a case cover, a module, a control module, a connection terminal, a second connection terminal, a low voltage connector, and the like, and a plurality of modules are installed in the case, with a plurality of battery cells being disposed in the modules; the plurality of modules are electrically connected with the control module through a bus;
the control module can comprise a control main board, a relay, a copper bar, a motor inverter and the like; the motor inverter inverts the direct current output by the module into three-phase alternating current;
the wiring terminal and the second wiring terminal are electrically connected to the control module; the low-voltage connector is connected with a control main board of the control module;
the wiring terminal is connected with a motor of the electric automobile to improve three-phase alternating current for the operation of the motor;
the second connecting terminal outputs direct current for an external load or inputs direct current to charge the module;
the battery pack 200 is provided with a ventilation valve 400/an explosion-proof valve/a pressure release valve, the ventilation valve 400 ventilates when the temperature changes/the pressure difference between the inside and the outside of the box changes so as to balance the pressure difference between the inside and the outside of the box, and the ventilation valve 400/the explosion-proof valve rapidly discharges gas when the battery core is out of control so as to avoid the explosion of the box;
the ventilation valve 400 is provided with a ventilation membrane through which gas can pass and which can block water from passing;
the battery pack 200 needs to meet tightness, typically meeting IPX7 protection rating, i.e., meeting no water ingress when submerged at a depth of 1 meter under water for 30 minutes;
the high voltage conductors of the battery pack 200 need to meet the IPXXB protection rating, i.e., to prevent fingers from contacting the high voltage conductors through the protective barrier, to prevent operators from getting electrocuted, without limitation.
In summary, the battery pack according to the second embodiment of the present invention has at least the following advantages compared with the sealing device according to the first embodiment in the prior art:
1. the sealing device of the first embodiment is installed in the battery pack of the present invention, and the sealing device 100 can seal the installation hole 230 in this embodiment, so as to ensure the tightness of the installation hole 230 before the installation of the wire harness or after the detachment of the wire harness, and solve the technical problem that the installation hole 230 damages the battery pack 200 due to the tightness in the prior art.
2. The fixing device 300 is further added in the battery pack 200 provided by the invention, so that after the wire harness terminal 500 passes through the mounting hole 230, the wire harness terminal 500 is aligned with the conductive terminal 600, an external assembly tool passes through the assembly opening and rotates the fixing piece 330, one end of the fixing piece 330 sequentially passes through the notches of the wire harness terminal 500 and the conductive terminal 600 and is connected with the matching piece 340, thereby fixedly connecting the wire harness terminal 500 with the conductive terminal 600, ensuring the stability after the connection of the wire harness terminal 500 and the conductive terminal 600.
In the description herein, reference to the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described with reference to the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A sealing device for mounting on a housing of a battery pack, the sealing device sealing a mounting hole in the housing, the sealing device comprising:
a base;
the sealing cover is connected to the shell through the base, a first part of the sealing cover is movably connected to one side edge of the base, a second part of the sealing cover is opposite to the mounting hole and used for sealing the mounting hole, and when the second part is moved, the first part rotates by taking one side edge of the base as a rotating part, so that the second part moves relative to the base, and the mounting hole is communicated with the outside;
the locking assembly comprises a locking piece and a limiting piece which are arranged on the base, one end of the locking piece penetrates through part of the side edge of the sealing cover and is used for limiting the movement of the second component relative to the base, and the other end of the locking piece is used for extending into the limiting part of the limiting piece so as to limit the movement of the locking piece in at least one direction through the limiting part;
the locking piece is elastically connected to the base, so that one end of the locking piece is continuously limited by the limiting portion, and one end, close to the limiting portion, of the locking piece is separated from the limiting range of the limiting portion by reversely moving the other end of the locking piece, so that the second component can move relative to the base.
2. The sealing device according to claim 1, wherein at least two locking assemblies are provided, and at least two locking assemblies are symmetrically provided on both sides of the base with a center line of the sealing cover as a center;
wherein, at least two hole bodies for the locking parts in at least two locking components to extend into are arranged on the sealing cover.
3. The sealing device of claim 2, wherein the locking assembly further comprises an elastic member having one end connected to the locking member and the other end connected to the outside of the sealing cap such that the locking member is elastically connected to the base by the elastic member.
4. A sealing arrangement according to claim 3, wherein the locking member comprises a carrier rod and a latch, one end of the carrier rod being connected between the ends of the latch, the other end of the carrier rod extending through one side of the sealing cover for limiting movement of the second component relative to the base;
one end of the lock bolt is connected with the elastic piece, and the other end of the lock bolt is arranged opposite to the limiting part of the limiting piece so as to limit the movement of the lock bolt in at least one direction through the limiting part;
wherein, the sealing cover is provided with a through hole for the ejector rod to pass through.
5. A battery pack comprising a housing, an electronic module disposed in the housing, and a mounting hole disposed in the housing for a wire harness to pass through, wherein the battery pack further comprises the sealing device of any one of claims 1-4 for mounting on the housing to seal the mounting hole by the sealing device.
6. The battery pack according to claim 5, wherein the sealing cover in the sealing device is provided with a plurality of concave portions opposed to a plurality of harness terminals on the harness;
when a plurality of wire harness terminals extend into the corresponding concave parts, the side walls of the wire harness terminals apply pressure to one end of the locking piece, so that the locking piece moves reversely, and one end, close to the limiting part, of the locking piece is separated from the limiting range of the limiting part.
7. The battery pack of claim 5, further comprising a securing device disposed within the housing for fixedly connecting the harness terminals with opposing conductive terminals in the battery module.
8. The battery pack according to claim 7, wherein the fixing device comprises a first fixing bracket and a second fixing bracket which are arranged on the electronic module, the first fixing bracket and the second fixing bracket are respectively arranged on two opposite sides of the conductive terminal, and a gap for accommodating the conductive terminal and the wire harness terminal to extend into is arranged between the first fixing bracket and the second fixing bracket;
one of the first fixing bracket and the second fixing bracket is internally provided with a fixing piece, and the other is provided with a matching piece opposite to the fixing piece;
by rotating the fixing piece, one end of the fixing piece moves towards the direction of the matching piece, so that the conductive terminal and the wire harness terminal are fixedly connected through the fixing piece;
wherein, set up on the casing with the assembly opening that the mounting is relative, can dismantle on the assembly opening and be connected with the breather valve.
9. The battery pack of claim 8, wherein the securing member is disposed on the first securing bracket and the mating member is disposed on the second securing bracket;
the first fixing support is provided with a plurality of elastic claws, the elastic claws are surrounded to form a clamping space for clamping the fixing piece, and the fixing piece is clamped in the clamping space.
10. The battery pack of claim 9, wherein the fixing means further comprises a guide sleeve provided on the first fixing bracket, the guide sleeve being opposite to the fixing member, and an opening size of the guide sleeve increases toward the other end near one end of the first fixing bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311079912.8A CN117096520A (en) | 2023-08-25 | 2023-08-25 | Sealing device and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311079912.8A CN117096520A (en) | 2023-08-25 | 2023-08-25 | Sealing device and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117096520A true CN117096520A (en) | 2023-11-21 |
Family
ID=88771351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311079912.8A Pending CN117096520A (en) | 2023-08-25 | 2023-08-25 | Sealing device and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117096520A (en) |
-
2023
- 2023-08-25 CN CN202311079912.8A patent/CN117096520A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7754374B2 (en) | Protective cover for a battery assembly | |
| US11611133B2 (en) | Manual service disconnect for a battery system | |
| US9214750B2 (en) | Connector to flex assembly | |
| EP2602831B1 (en) | Electrically isolated heat dissipating junction box | |
| CN110619973B (en) | Conductive member | |
| US10454199B1 (en) | Electrical connector with terminal position assurance device | |
| US10003157B2 (en) | Service plug unit, device unit, and power cutting-off system for electric car comprising same | |
| EP2713421A1 (en) | Cell wiring module | |
| CN112151979B (en) | Electrical connection module and junction box | |
| CN117096520A (en) | Sealing device and battery pack | |
| CN110366802B (en) | Protective separating device for rectangular plug-in connection | |
| US9755332B1 (en) | Terminal blocks | |
| KR20150118336A (en) | Power Disconnecting System For Electric Automobile | |
| WO2016203588A1 (en) | Connector | |
| KR20150004828A (en) | Quick one-way connection system | |
| US8152542B2 (en) | Electrical connector enclosure | |
| US11975622B2 (en) | Charging inlet assembly having an AC charging module | |
| CN112151980B (en) | Electrical connection assembly and cable terminal | |
| WO2011015532A1 (en) | Combined electrical connector with tolerance compensation | |
| CN112151977A (en) | Junction box connecting assembly and electrical connection module | |
| JP2014130799A (en) | Terminal connection component, and battery module | |
| CN212861319U (en) | Prevent changeing support assembly, battery package and electric motor car | |
| CN219067121U (en) | Battery pack and battery system | |
| CN220456829U (en) | DC charging seat for new energy automobile | |
| CN212628817U (en) | Explosion-proof shell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication |