CN114284617B - Sealing structure of electric connector in quick-change battery box - Google Patents
Sealing structure of electric connector in quick-change battery box Download PDFInfo
- Publication number
- CN114284617B CN114284617B CN202111545109.XA CN202111545109A CN114284617B CN 114284617 B CN114284617 B CN 114284617B CN 202111545109 A CN202111545109 A CN 202111545109A CN 114284617 B CN114284617 B CN 114284617B
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- valve body
- shaft sleeve
- sleeve
- quick
- axle sleeve
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- 238000007789 sealing Methods 0.000 title abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 31
- 239000012530 fluid Substances 0.000 claims abstract description 21
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 239000011261 inert gas Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 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 11
- 230000008569 process Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000007789 gas 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
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- 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 so as 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, and the upper valve body comprises an upper shaft sleeve and a lower shaft sleeve. The electric connector sealing structure in the quick-change battery box is characterized in that the high viscosity and low flow characteristics of the magnetorheological fluid under the action of a magnetic field are utilized for the arrangement of 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 sealing, water vapor and solid particle impurities in air can be effectively prevented from entering the electric connector when the quick-change battery box is replaced and detached, and the phenomenon of short circuit 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
Compared with an internal combustion engine automobile taking petroleum as fuel, the electric automobile is used as a new energy automobile driven by pure electric, so that the pollution to the atmosphere is greatly reduced, the dependence and consumption of people on natural resources are relieved, and further the new energy automobile mainly taking electric power becomes an important trend of automobile technology development, and along with the continuous development and perfection of the electric automobile technology, the electric automobile has taken up a certain proportion in the automobile market and is continuously increased.
However, the electric automobile does not have a long development history like the fuel automobile, and the everywhere visible gas station can provide sufficient and stable power support for the electric automobile and is limited by the charging technology, so that the electric automobile is charged into a great technical problem, and the electric automobile is limited by the field and is charged for a long time.
Therefore, the quick-change battery box synchronously arranged on the electric automobile is generated, however, the circuit connection system on the conventional quick-change battery box is exposed in the process of replacing and assembling and disassembling the battery pack, so that some impurities in the air enter the circuit connection system, 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 cause a short circuit phenomenon due to poor contact of the circuit, and a great potential safety hazard exists when the battery pack on the quick-change battery box is replaced and disassembled frequently.
Therefore, there is a need for an electrical connector sealing structure for use in a quick-change battery box, which overcomes the above-mentioned drawbacks of the conventional quick-change electrical connector.
Disclosure of Invention
The invention provides an electric connector sealing structure in a quick-change battery box, which has the advantages of being capable 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 circuit system, avoiding short circuit caused by poor contact, and being higher in safety and reliability, and solves the problems that the circuit connection system on the traditional quick-change battery box is exposed in the process of replacing and disassembling a battery pack, and then some impurities in the air enter the circuit connection system, particularly in the process of replacing and disassembling the battery pack in a rainy day, the water vapor and the particle impurities in the air are easier to cause short circuit phenomenon due to poor contact of circuits, and great potential safety hazards exist when the battery pack on the quick-change battery box is replaced and disassembled frequently.
The invention provides the following technical scheme: the utility model provides an electric connector seal structure in quick change battery box, includes upper valve body and lower valve body, the top of upper valve body has cup jointed electric conductor I in its inner chamber through the end cover activity, the top of electric conductor I surface has cup jointed compression spring in order to be connected with the transmission between the bottom of end cover movably, the inside of lower valve body has fixedly cup jointed electric conductor II, upper valve body includes upper axle sleeve and lower axle sleeve two parts constitution, fixedly connected between the bottom of upper axle sleeve and the top of lower axle sleeve, and offered the spread groove that is connected with the inner chamber of lower axle sleeve in the inside of upper axle sleeve, the guide way that communicates to its bottom has been offered to the inside and the deflection outside of lower axle sleeve, the control groove that communicates to its bottom has been offered to the inside of lower axle sleeve; the outside at lower valve body top fixed mounting has the guide ring, and the inboard at its top fixed mounting has and hinders the magnetic ring cover, the inside of lower valve body has seted up a set of pressure release hole II and the pressure release hole III of longitudinal arrangement respectively.
Preferably, the electric conductor I comprises a conversion shaft, the outer surface of the conversion shaft is movably sleeved with the inner part of the bottom end of the upper shaft sleeve, the top of the outer surface of the conversion shaft is fixedly sleeved with a limiting shaft sleeve in an inner cavity of the upper shaft sleeve, the outer surface of the limiting shaft sleeve is mutually contacted with the inner wall of the upper shaft sleeve, and the inner part of the top end of the conversion shaft is movably sleeved with an electric connection terminal extending to the top of the upper end cover of the upper valve body.
Preferably, a permanent magnet ring group is fixedly arranged at the bottom of the outer side of the inner wall of the control groove on the lower shaft sleeve, and magnetorheological fluid is filled in a cavity formed by the electric conductor I, the upper shaft sleeve and the lower shaft sleeve.
Preferably, the pressure relief hole I which can be communicated with the guide groove and the control groove and is transversely arranged is formed in the lower shaft sleeve, and the other end of the pressure relief hole I penetrates through and extends to the outer part of the lower shaft sleeve.
Preferably, an elastic air bag is fixedly arranged at the top of the storage groove on the upper valve body, and inert gas is filled in the elastic air bag.
The invention has the following beneficial effects:
the sealing structure of the electric connector in the quick-change battery box is characterized in that the high viscosity and low flow characteristics of the magnetorheological fluid under the action of a magnetic field are utilized for the arrangement of the upper valve body, the lower valve body and the upper structure of the upper valve body, so that the magnetorheological fluid can form liquid sealing in the inner cavity of the lower shaft sleeve.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the upper valve body of the present invention;
FIG. 3 is a schematic view of the structure of the lower valve body of 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 groove; 13. a pressure relief hole I; 14. a guide ring; 15. a magnetic blocking ring sleeve; 16. a pressure relief hole II; 17. a pressure relief hole III; 18. a switching shaft; 19. a limiting shaft sleeve; 20. an electrical terminal; 21. a permanent magnet ring group.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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 an electric vehicle chassis and a lower valve body 5 fixedly mounted on the quick-change battery box, wherein threads are respectively arranged at the bottoms of the outer surfaces of the upper valve body 1 and the outer surface of the lower valve body 5 so as to be convenient for fixedly mounting the upper valve body, a conductor I2 is movably sleeved at the top end of the upper valve body 1 in an inner cavity of the upper valve body through an end cover 3, the end cover 3 is fixedly connected with the upper valve body 1 through a time bolt so as to be convenient for dismounting and replacing the conductor I2 in the upper valve body, a pressure spring 4 is movably sleeved at the top of the outer surface of the conductor I2 so as to be in transmission connection with the bottom end of the end cover 3, a conductor II 6 is fixedly sleeved at the inner part of the lower valve body 5, and the upper end and the lower end of the conductor II 6 extend to the outer part of the lower valve body 5 respectively;
as shown in fig. 2, the upper valve body 1 comprises an upper shaft sleeve 7 and a lower shaft sleeve 8, wherein 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 to the bottom of the lower shaft sleeve 8 is formed in the lower shaft sleeve 8 and deviates to the outer side of the lower shaft sleeve 8, and a control groove 12 communicated to the bottom of the lower shaft sleeve 8 is formed in the lower shaft sleeve 8 and deviates to the inner side of the lower shaft sleeve 8;
as shown in fig. 3, 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 5 is fixedly provided with a magnetic blocking ring sleeve 15, the top end of the magnetic blocking ring sleeve 15 is flush with the top end of the lower valve body 5, and a group of pressure relief holes ii 16 and iii 17 which are longitudinally arranged are respectively formed in the lower valve body 5 so as to respectively communicate two chambers formed by the guide ring 14, the magnetic blocking ring sleeve 15 and the top end of the lower valve body 5, and balance the air pressure of the inner part and the outside when the upper valve body 1 and the lower valve body 5 are mutually clamped and overlapped.
As shown in fig. 4, in this technical solution, the electric conductor i 2 includes a conversion shaft 18, the outer surface of the conversion shaft 18 is movably sleeved with the inner portion of the bottom end of the upper shaft sleeve 7, a limiting shaft sleeve 19 is fixedly sleeved on the top of the outer surface of the conversion shaft 18 and in the inner cavity of the upper shaft sleeve 7, the outer surface of the limiting shaft sleeve 19 is mutually contacted with the inner wall of the upper shaft sleeve 7, an electric connection terminal 20 extending to the top of the upper end cover 3 of the upper valve body 1 is movably sleeved on the inner portion of the top end of the conversion shaft 18, and an electric connection is formed between the bottom end of the electric connection terminal 20 and the bottom of the inner cavity of the conversion shaft 18, so that circuit communication can be formed only when the electric connection terminal and the inner cavity are mutually pressed and contacted.
Wherein, the electric conductor I2 is arranged to ensure that the inner cavity of the upper valve body 1 forms movable sealing and has good stability and electric conductivity.
In the technical scheme, a permanent magnet ring group 21 is fixedly arranged at the bottom of the outer side of the inner wall of a control groove 12 on a lower shaft sleeve 8, magnetorheological fluid is filled in a cavity formed by a conductor I2, an upper shaft sleeve 7 and the lower shaft sleeve 8, and the viscosity generated by the permanent magnet ring group 21 for the magnetic field applied by the magnetorheological fluid at least keeps the phenomenon that the magnetic field cannot leak in the inner cavity of the lower shaft sleeve 8.
The magnetorheological fluid has the characteristics of Newtonian fluid with low viscosity under the condition of no external magnetic field, and bingham fluid with high viscosity and low fluidity under the condition of external magnetic field, wherein the viscosity of the fluid has a corresponding relation with the magnetic flux.
In this technical scheme, but the pressure release hole I13 that intercommunication guide way 11 and control groove 12 and transverse arrangement are offered to the inside of lower axle sleeve 8, and the other end of pressure release hole I13 runs through and extends to the outside of lower axle sleeve 8 to balance its inside and external gas pressure when last valve body 1 and lower valve body 5 joint coincidence each other.
Wherein, the inside of the bottom end of the conversion shaft 18 is provided with a drain hole which extends to the outside and is transversely arranged, so that when the top end of the electric conductor II 6 is contacted with the bottom end of the conversion shaft 18, the magnetorheological fluid between the electric conductor II 6 and the bottom end of the conversion shaft can be completely discharged to ensure good conductivity.
In this technical scheme, the top fixed mounting of holding vessel 9 on the upper valve body 1 has the elasticity gasbag 10 that wear-resisting material was made, and has inert gas in its inside to make it have good stability under different external temperature environment, less to the deflection of expend with heat and contract with cold.
The application 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 fixedly installed in the chassis and the quick-change battery box of the electric vehicle respectively according to the above description:
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, so that the magnetic blocking ring sleeve 15 on the lower valve body gradually breaks away from the control groove 12, the viscosity and the fluidity of magnetorheological fluid filled in the inner cavity of the upper shaft sleeve 7 are further increased and reduced under the action of the permanent magnetic ring group 21, the magnetorheological fluid is kept at a specific position in the inner cavity of the upper shaft sleeve 7 by utilizing the viscosity and the surface tension of the magnetorheological fluid, the phenomenon of leakage can not occur when the lower valve body 5 and the conductor II 6 on the lower valve body are separated from the upper valve body 1, meanwhile, the lower valve body 5 forms liquid seal in the inner cavity of the lower shaft sleeve 8, so as to prevent water vapor or granular impurities in the air from entering the lower valve body 8, and the conductor II 6 on the lower valve body 5 loses the extrusion of the upper valve body 1, and the conversion shaft 18 is further driven to move downwards under the action of the elasticity of the pressure spring 4 and separate from the bottom end of the electric terminal 20, so that the electric connection of the battery pack in the quick-change battery box is cut off;
in the process of installing the quick-change battery box, the high-viscosity magnetorheological fluid is extruded along with the entering of the conductor II 6 on the lower valve body 5, so that the high-viscosity magnetorheological fluid is extruded into the storage groove 9 on the upper shaft sleeve 7, meanwhile, the magnetic-resistant ring sleeve 15 on the lower valve body 5 is overlapped with the permanent magnetic ring group 21 on the control groove 12 along with the continuous entering of the conductor II 6 on the lower valve body 5, so that the magnetic field applied to the magnetorheological fluid is shielded, the viscosity of the magnetorheological fluid is reduced, the fluidity of the magnetorheological fluid is increased, the magnetorheological fluid 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 contacts with the conversion shaft 18 on the upper valve body 1, and the upper valve body is synchronously driven to move upwards to contact with the bottom end of the electric terminal 20, so that electric connection is formed, and the circuit connection of the battery pack in the quick-change battery box is completed.
It is noted that relational terms such as first and second, and the like are 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. Moreover, 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 understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
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) has movably sleeved electric conductor I (2) in its inner chamber through end cover (3), the top activity of electric conductor I (2) surface has cup jointed compression spring (4) in order to be connected with the transmission between the bottom of end cover (3), the inside of lower valve body (5) is fixed to have 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 to the bottom of the lower shaft sleeve is formed in the lower shaft sleeve (8) and deviates to the outer side of the lower shaft sleeve, and a control groove (12) communicated to the bottom of the lower shaft sleeve is formed in the lower shaft sleeve (8) and deviates 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 blocking ring sleeve (15), and a group of pressure relief holes II (16) and pressure relief holes III (17) which are longitudinally arranged are respectively formed in the lower valve body (5);
the electric conductor I (2) comprises a conversion shaft (18), the surface of conversion shaft (18) cup joints with the inside activity of last axle sleeve (7) bottom, fixed cover has cup jointed spacing axle sleeve (19) in the inner chamber of just being located last axle sleeve (7) at the top of conversion shaft (18) surface, and the surface of spacing axle sleeve (19) and the inner wall of last axle sleeve (7) contact each other, the inside activity at conversion shaft (18) top cup joints and has extended to connect electric terminal (20) at upper valve body (1) upper end cover (3) top, the bottom fixed mounting of control slot (12) inner wall outside has permanent magnet ring group (21) on lower axle sleeve (8), and is filled with magnetorheological fluid in the cavity that electric conductor I (2), last axle sleeve (7) and lower axle sleeve (8) constitute, but the inside of lower axle sleeve (8) has been seted up and is linked through guide slot (11) and control slot (12) and transversely arranged's pressure release hole I (13), the other end of pressure release hole I (13) runs through and extends to the outside of lower axle sleeve (8).
2. The electrical connector seal structure in a quick change battery compartment of claim 1, wherein: an elastic air bag (10) is fixedly arranged at the top of the upper storage tank (9) of 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 |
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| Publication Number | Publication Date |
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| CN114284617A CN114284617A (en) | 2022-04-05 |
| CN114284617B true CN114284617B (en) | 2024-04-12 |
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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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| CN114284617A (en) | 2022-04-05 |
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