CN114284617A - Electric connector sealing structure in quick-change battery box - Google Patents
Electric connector sealing structure in quick-change battery box Download PDFInfo
- Publication number
- CN114284617A CN114284617A CN202111545109.XA CN202111545109A CN114284617A CN 114284617 A CN114284617 A CN 114284617A CN 202111545109 A CN202111545109 A CN 202111545109A CN 114284617 A CN114284617 A CN 114284617A
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- valve body
- shaft sleeve
- quick
- battery box
- change battery
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- 238000007789 sealing Methods 0.000 title claims abstract description 17
- 239000004020 conductor Substances 0.000 claims abstract description 33
- 239000012530 fluid Substances 0.000 claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 7
- 239000012535 impurity Substances 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- 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
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- Magnetically Actuated Valves (AREA)
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The invention relates to the technical field of quick-change battery boxes, and discloses an electric connector sealing structure in a quick-change battery box, which comprises an upper valve body and a lower valve body, wherein the top end of the upper valve body is movably sleeved with a conductor I in an inner cavity of the upper valve body through an end cover, the top of the outer surface of the conductor I is movably sleeved with a pressure spring to be in transmission connection with the bottom end of the end cover, a conductor II is fixedly sleeved in the lower valve body, and the upper valve body comprises an upper shaft sleeve and a lower shaft sleeve. According to the electric connector sealing structure in the quick-change battery box, the characteristics of high viscosity and low flow generated by the magnetorheological fluid under the action of the magnetic field are utilized for the upper valve body, the lower valve body and the upper structure of the upper valve body, so that the inner cavity of the lower shaft sleeve can form liquid seal, and water vapor and solid particle impurities in the air can be effectively prevented from entering the electric connector when the quick-change battery box is replaced and disassembled, so that the short circuit phenomenon caused by poor contact of a circuit is prevented.
Description
Technical Field
The invention relates to the technical field of quick change battery boxes, in particular to an electric connector sealing structure in a quick change battery box.
Background
As a new energy automobile driven by pure electric power, compared with an internal combustion engine automobile using petroleum as fuel, the electric automobile not only greatly reduces the pollution to the atmospheric environment, but also relieves the dependence and consumption of people on natural resources, so that the new energy automobile mainly using electric power becomes an important trend of automobile technology development, and has already occupied a certain proportion and continuously increased in the automobile market along with the continuous development and perfection of the electric automobile technology.
However, electric vehicles do not have a long development history like fuel vehicles, and a gas station which is visible everywhere can provide sufficient and stable power support for the electric vehicles, and is limited by a charging technology, so that the charging of the electric vehicles becomes a great technical problem, and is limited by a site and has a long charging time.
Therefore, the quick-change battery box synchronously arranged on the electric automobile is produced, but in the process of replacing and disassembling the battery pack, a circuit connecting system on the quick-change battery box is exposed, so that impurities in the air enter the quick-change battery box, particularly in the process of replacing and disassembling the battery pack in rainy days, water vapor and granular impurities in the air are easier to enter the quick-change battery box, the short circuit phenomenon is easy to occur due to poor contact of the circuit, and great potential safety hazards exist when the battery pack on the quick-change battery box is frequently replaced and disassembled.
Therefore, there is a need for a sealing structure of an electrical connector used in a quick-change battery box to solve the above-mentioned drawbacks of the conventional quick-change electrical connector thereon.
Disclosure of Invention
Technical problem to be solved
The invention provides an electric connector sealing structure in a quick-change battery box, which has the advantages of realizing liquid sealing connection of a circuit system on the quick-change battery box when the quick-change battery box is disassembled, effectively preventing water vapor and solid particle impurities in the air from entering the quick-change battery box, avoiding short circuit caused by poor contact, and having higher safety and reliability, and solves the problems that the circuit connection system on the quick-change battery box is exposed to cause some impurities in the air to enter the quick-change battery box when the battery pack is replaced and disassembled in the existing quick-change battery box, particularly, the water vapor and the particle impurities in the air are easier to enter the quick-change battery box in the process of replacing and disassembling the battery pack in rainy days, the short circuit phenomenon is easy to occur due to the poor contact of the circuit, and the greater potential safety hazard exists when the battery pack on the quick-change battery box is replaced and disassembled frequently.
(II) technical scheme
The invention provides the following technical scheme: an electric connector sealing structure in a quick-change battery box comprises an upper valve body and a lower valve body, wherein the top end of the upper valve body is movably sleeved with a conductor I in an inner cavity of the upper valve body through an end cover, the top of the outer surface of the conductor I is movably sleeved with a pressure spring to be in transmission connection with the bottom end of the end cover, the inner part of the lower valve body is fixedly sleeved with a conductor II, the upper valve body comprises an upper shaft sleeve and a lower shaft sleeve, the bottom end of the upper shaft sleeve is fixedly connected with the top end of the lower shaft sleeve, a storage groove connected with the inner cavity of the lower shaft sleeve is formed in the upper shaft sleeve, a guide groove communicated with the bottom of the lower shaft sleeve is formed in the lower shaft sleeve and deviates to the outer side of the lower shaft sleeve, and a control groove communicated with the bottom of the lower shaft sleeve is formed in the lower shaft sleeve and deviates to the inner side of the lower shaft sleeve; the outer side of the top end of the lower valve body is fixedly provided with a guide ring, the inner side of the top end of the lower valve body is fixedly provided with a magnetic resistance ring sleeve, and the inner part of the lower valve body is respectively provided with a group of longitudinally arranged pressure relief holes II and III.
Preferably, the electric conductor I comprises a limiting shaft sleeve, the outer surface of the limiting shaft sleeve is movably sleeved with the inner part of the bottom end of the upper shaft sleeve, the limiting shaft sleeve is fixedly sleeved in the inner cavity of the upper shaft sleeve at the top of the outer surface of the conversion shaft, the outer surface of the limiting shaft sleeve is in contact with the inner wall of the upper shaft sleeve, and the electric connection terminal extending to the top of the upper end cover of the upper valve body is sleeved in the inner part of the top end of the conversion shaft in a movable mode.
Preferably, the bottom outside the inner wall of the control groove on the lower shaft sleeve is fixedly provided with a permanent magnet ring set, and a cavity formed by the conductor I, the upper shaft sleeve and the lower shaft sleeve is filled with magnetorheological fluid.
Preferably, the inside of lower axle sleeve is seted up and is communicated guide way and control slot and transverse arrangement's pressure release hole I, the other end in pressure release hole I runs through and extends to the outside of lower axle sleeve.
Preferably, an elastic air bag is fixedly mounted on the top of the storage tank on the upper valve body, and an inert gas is filled in the elastic air bag.
(III) advantageous effects
The invention has the following beneficial effects:
the electric connector sealing structure in the quick-change battery box utilizes the characteristics of high viscosity and low flow generated by the magnetorheological fluid under the action of a magnetic field to the upper valve body, the lower valve body and the upper structure of the upper valve body, so that the electric connector sealing structure can form liquid seal in the inner cavity of the lower shaft sleeve.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of an upper valve body according to the present invention;
FIG. 3 is a schematic structural view of a lower valve body according to the present invention;
fig. 4 is a schematic structural view of the conductor i of the present invention.
In the figure: 1. an upper valve body; 2. a conductor I; 3. an end cap; 4. a pressure spring; 5. a lower valve body; 6. a conductor II; 7. an upper shaft sleeve; 8. a lower shaft sleeve; 9. a storage tank; 10. an elastic air bag; 11. a guide groove; 12. a control slot; 13. a pressure relief hole I; 14. a guide ring; 15. a magnetic resistance ring sleeve; 16. a pressure relief hole II; 17. a pressure relief hole III; 18. a conversion shaft; 19. a limiting shaft sleeve; 20. an electric terminal is connected; 21. and a permanent magnet ring set.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an electric connector sealing structure in a quick-change battery box comprises an upper valve body 1 fixedly mounted on a chassis of an electric vehicle and a lower valve body 5 fixedly mounted on the quick-change battery box, wherein the outer surface of the upper valve body 1 and the bottom of the outer surface of the lower valve body 5 are respectively provided with threads so as to be fixedly mounted, the top end of the upper valve body 1 is movably sleeved with an electric conductor i 2 in an inner cavity of the upper valve body through an end cover 3, the electric conductor i 2 in the upper valve body is conveniently disassembled and replaced by fixedly connecting the end cover 3 and the upper valve body 1 through a time bolt, the top of the outer surface of the electric conductor i 2 is movably sleeved with a pressure spring 4 so as to be in transmission connection with the bottom end of the end cover 3, the electric conductor ii 6 is fixedly sleeved in the lower valve body 5, and the upper end and the lower end of the electric conductor ii 6 respectively extend to the outside of the lower valve body 5;
as shown in fig. 2, the upper valve body 1 comprises an upper shaft sleeve 7 and a lower shaft sleeve 8, the bottom end of the upper shaft sleeve 7 is fixedly connected with the top end of the lower shaft sleeve 8, a storage groove 9 connected with the inner cavity of the lower shaft sleeve 8 is formed in the upper shaft sleeve 7, a guide groove 11 communicated with the bottom of the lower shaft sleeve 8 is formed in the lower shaft sleeve 8 and is deviated to the outer side of the lower shaft sleeve, and a control groove 12 communicated with the bottom of the lower shaft sleeve 8 is formed in the lower shaft sleeve 8 and is deviated to the inner side of the lower shaft sleeve;
as shown in fig. 3, a guide ring 14 is fixedly installed on the outer side of the top end of the lower valve body 5, a magnetic resistance ring sleeve 15 is fixedly installed on the inner side of the top end of the lower valve body 5, the top end of the magnetic resistance ring sleeve 15 is flush with the top end of the lower valve body 5, a group of longitudinally arranged pressure relief holes ii 16 and iii 17 are respectively formed in the lower valve body 5 to respectively communicate two chambers formed by the guide ring 14, the magnetic resistance ring sleeve 15 and the top end of the lower valve body 5, so that the internal and external gas pressures are balanced when the upper valve body 1 and the lower valve body 5 are clamped and overlapped with each other.
As shown in fig. 4, in the present technical solution, the electric conductor i 2 includes a limiting shaft sleeve 19, an outer surface of the limiting shaft sleeve 19 is movably sleeved with an inner portion of a bottom end of the upper shaft sleeve 7, the top portion of an outer surface of the switching shaft 18 is fixedly sleeved with the limiting shaft sleeve 19 in an inner cavity of the upper shaft sleeve 7, the outer surface of the limiting shaft sleeve 19 is in contact with an inner wall of the upper shaft sleeve 7, an electric terminal 20 extending to the top portion of the upper end cover 3 of the upper valve body 1 is movably sleeved in the inner portion of the top end of the switching shaft 18, an electric connection is formed between a bottom end of the electric terminal 20 and a bottom portion of the inner cavity of the switching shaft 18, and a circuit connection can be formed only when the electric terminal is in mutual pressing contact.
The arrangement of the electric conductor I2 ensures that the inner cavity of the upper valve body 1 forms movable sealing and has good stability and electric conductivity.
In the technical scheme, the permanent magnet ring group 21 is fixedly installed at the bottom of the outer side of the inner wall of the control groove 12 on the lower shaft sleeve 8, magnetorheological fluid is filled in a cavity formed by the conductor I2, the upper shaft sleeve 7 and the lower shaft sleeve 8, and the viscosity generated by the permanent magnet ring group 21 on the magnetic field applied by the magnetorheological fluid at least keeps the viscosity of the magnetic field not to leak in the inner cavity of the lower shaft sleeve 8.
The magnetorheological fluid presents low-viscosity Newtonian fluid characteristics when no external magnetic field exists, and presents high-viscosity low-fluidity Bingham fluid when a magnetic field is applied externally, and the viscosity of the fluid and the magnetic flux have a corresponding relation.
Among this technical scheme, the pressure release hole I13 that can communicate guide way 11 and control tank 12 and transverse arrangement is seted up to lower axle sleeve 8's inside, and the other end in pressure release hole I13 runs through and extends to lower axle sleeve 8's outside to balanced its inside and external gas pressure when last valve body 1 and the mutual joint coincidence of lower valve body 5.
Wherein, the interior of the bottom end of the converting shaft 18 is provided with a drain hole which extends to the exterior and is transversely arranged, so that when the top end of the electric conductor II 6 is contacted with the bottom end of the converting shaft 18, the magnetorheological fluid between the top end of the electric conductor II and the converting shaft can be completely discharged to ensure that the magnetorheological fluid has good electric conductivity.
In this technical scheme, go up the top fixed mounting of hold up tank 9 on valve body 1 and have the elasticity gasbag 10 that wear-resisting material made, and it has inert gas to fill at its inside to make it have good stability under the ambient temperature environment of difference, it is less to expend with heat and contract with cold's deflection.
The use method and the working principle of the embodiment are as follows:
the upper valve body 1 and the lower valve body 5 in the electric connector are respectively and fixedly arranged on the chassis and the quick-change battery box of the electric vehicle according to the above content:
in the process of detaching the quick-change battery box, the lower valve body 5 gradually moves downwards along with the quick-change battery box to enable the magnetic resistance ring sleeve 15 on the lower valve body to gradually separate from the control groove 12, so that the viscosity and the fluidity of the magnetorheological fluid filled in the inner cavity of the upper shaft sleeve 7 are increased and reduced under the action of the permanent magnet ring group 21, the magnetorheological fluid is kept at a specific position of the inner cavity of the upper shaft sleeve 7 by utilizing the viscosity and the surface tension of the magnetorheological fluid, the leakage phenomenon can not occur when the lower valve body 5 and the electric conductor II 6 on the lower valve body separate from the upper valve body 1, meanwhile, the magnetorheological fluid forms liquid seal in the inner cavity of the lower shaft sleeve 8 to prevent water vapor or granular impurities in the air from entering the lower valve body, and the electric conductor II 6 on the lower valve body 5 moves downwards to lose the extrusion on the conversion shaft 18 on the upper valve body 1, so that the conversion shaft 18 is driven to move downwards and separate from the bottom end of the electric connection terminal 20 under the action of the elasticity of the pressure spring 4, and the electric connection to the battery pack in the quick-change battery box is cut off;
in the process of installing the quick-change battery box, the magnetorheological fluid with high viscosity is extruded along with the entering of the conductor II 6 on the lower valve body 5, and then the magnetorheological fluid is extruded into the storage groove 9 on the upper shaft sleeve 7, meanwhile, along with the continuous entering of the conductor II 6 on the lower valve body 5, the magnetic resistance ring sleeve 15 on the lower valve body is superposed with the permanent magnet ring group 21 on the control groove 12 to shield the magnetic field applied to the magnetorheological fluid, so that the viscosity is reduced, the fluidity is increased, the conductor II better enters the storage groove 9 on the upper shaft sleeve 7 until the top end of the conductor II 6 on the lower valve body 5 is contacted with the conversion shaft 18 on the upper valve body 1, and the conductor II is synchronously driven to move upwards to be contacted with the bottom end of the electric terminal 20 to form electric connection, and then the circuit connection of the battery pack in the quick-change battery box is completed.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides an electric connector seal structure in quick change battery box, includes valve body (1) and lower valve body (5), the top of going up valve body (1) is passed through end cover (3) and is cup jointed electric conductor I (2) in its inner chamber activity, the top activity of electric conductor I (2) surface is cup jointed pressure spring (4) and is connected with the transmission between the bottom of end cover (3), the inside of lower valve body (5) is fixed cup jointed electric conductor II (6), its characterized in that: the upper valve body (1) comprises an upper shaft sleeve (7) and a lower shaft sleeve (8), the bottom end of the upper shaft sleeve (7) is fixedly connected with the top end of the lower shaft sleeve (8), a storage groove (9) connected with the inner cavity of the lower shaft sleeve (8) is formed in the upper shaft sleeve (7), a guide groove (11) communicated with the bottom of the lower shaft sleeve is formed in the lower shaft sleeve (8) and is deviated to the outer side of the lower shaft sleeve, and a control groove (12) communicated with the bottom of the lower shaft sleeve is formed in the lower shaft sleeve (8) and is deviated to the inner side of the lower shaft sleeve; the outer side of the top end of the lower valve body (5) is fixedly provided with a guide ring (14), the inner side of the top end of the lower valve body is fixedly provided with a magnetic resistance ring sleeve (15), and the inner part of the lower valve body (5) is respectively provided with a group of longitudinally arranged pressure relief holes II (16) and a group of longitudinally arranged pressure relief holes III (17).
2. The sealing structure of the electric connector in the quick-change battery box according to claim 1, wherein: electric conductor I (2) are including spacing axle sleeve (19), the surface of spacing axle sleeve (19) and the inside activity of last axle sleeve (7) bottom are cup jointed, fixed cover has connect spacing axle sleeve (19) among the top of change-over spindle (18) surface and the inner chamber that is located last axle sleeve (7), and between the surface of spacing axle sleeve (19) and the inner wall of last axle sleeve (7) mutual contact, the inside activity on change-over spindle (18) top is cup jointed and is extended to electric terminal (20) that connects at upper end cover (3) top of valve body (1).
3. The sealing structure of the electric connector in the quick-change battery box according to claim 2, wherein: the bottom outside the inner wall of the control groove (12) on the lower shaft sleeve (8) is fixedly provided with a permanent magnet ring set (21), and magnetorheological fluid is filled in a cavity formed by the conductor I (2), the upper shaft sleeve (7) and the lower shaft sleeve (8).
4. The electrical connector sealing structure in a quick-change battery box according to claim 3, wherein: the inside of lower axle sleeve (8) is seted up and to be linked together guide way (11) and control slot (12) and transverse arrangement's pressure release hole I (13), the other end in pressure release hole I (13) runs through and extends to the outside of lower axle sleeve (8).
5. The sealing structure of the electric connector in the quick-change battery box according to claim 4, wherein: an elastic air bag (10) is fixedly arranged at the top of the storage tank (9) on the upper valve body (1), and inert gas is filled in the elastic air bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111545109.XA CN114284617B (en) | 2021-12-17 | 2021-12-17 | Sealing structure of electric connector in quick-change battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111545109.XA CN114284617B (en) | 2021-12-17 | 2021-12-17 | Sealing structure of electric connector in quick-change battery box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114284617A true CN114284617A (en) | 2022-04-05 |
| CN114284617B CN114284617B (en) | 2024-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111545109.XA Active CN114284617B (en) | 2021-12-17 | 2021-12-17 | Sealing structure of electric connector in quick-change battery box |
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2021
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| CN114284617B (en) | 2024-04-12 |
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Effective date of registration: 20240321 Address after: 516006, Zone A, 4th Floor, Building 2, Yicheng Industrial Park, No. 11 Xinke Avenue, Industrial Base, Tongqiao Town, Zhongkai High tech Zone, Huicheng District, Huizhou City, Guangdong Province Applicant after: Huizhou Youlong Industrial Co.,Ltd. Country or region after: China Address before: 351100 No. 209, Lane 268, Daotang North Street, Hanxi street, Hanjiang District, Putian City, Fujian Province Applicant before: Huang Jian Country or region before: China |
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