CN113823949B - High-sealing-performance power transmission structure for liquid floating instrument - Google Patents
High-sealing-performance power transmission structure for liquid floating instrument Download PDFInfo
- Publication number
- CN113823949B CN113823949B CN202110968007.2A CN202110968007A CN113823949B CN 113823949 B CN113823949 B CN 113823949B CN 202110968007 A CN202110968007 A CN 202110968007A CN 113823949 B CN113823949 B CN 113823949B
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- binding post
- lead
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 43
- 239000007788 liquid Substances 0.000 title claims abstract description 27
- 238000007789 sealing Methods 0.000 claims abstract description 115
- 238000009413 insulation Methods 0.000 claims abstract description 27
- 238000005219 brazing Methods 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 239000003292 glue Substances 0.000 claims description 33
- 238000003860 storage Methods 0.000 claims description 26
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 238000011900 installation process Methods 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000012797 qualification Methods 0.000 abstract description 6
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/521—Sealing between contact members and housing, e.g. sealing insert
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5205—Sealing means between cable and housing, e.g. grommet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Installation Of Indoor Wiring (AREA)
Abstract
The invention relates to a high-sealing-performance power transmission structure for a liquid floating instrument, belonging to the field of precise instruments; the outer float component is of a hollow columnar structure; the shaft end of the float component is provided with a wire through hole; the binding post is of a cylindrical structure with a blind hole at one axial end; one end of the lead extends into the blind hole of the binding post, and the outer wall of the lead is welded with the inner wall of the blind hole of the binding post through brazing filler metal; the sealing insulating short sleeve is sleeved on the outer wall of the binding post; the sealing insulation long sleeve is sleeved on the outer wall of the lead, and the axially opposite surfaces of the sealing insulation long sleeve and the sealing insulation short sleeve are butted; the binding post, the sealing insulating short sleeve, the brazing filler metal, the sealing insulating long sleeve and the lead form a power transmission structure; the invention can realize reliable transmission of electricity in and out of the precise structure, reliable insulation, greatly improve the sealing performance of products, and improve the long-term working reliability and stability of the liquid floating instrument while improving the production qualification rate of the products.
Description
Technical Field
The invention belongs to the field of precision instruments, and relates to a high-sealing-performance power transmission structure for a liquid floating instrument.
Background
The working characteristics of the liquid float instrument are that the gyro motor is sealed in the sealed float cavity, the float eliminates friction interference moment through the float support, and the accuracy stability of the instrument is improved, so the sealing performance of the float cavity directly affects the accuracy and reliability of the instrument. The float sealing performance index of the previous generation of static pressure liquid float instrument is that the leak rate is less than or equal to 1.33 multiplied by 10 -8Pa·m3/s, and the float sealing performance index of the new generation of liquid float instrument is improved by one order of magnitude along with the continuous improvement of the use precision and service life requirements of the instrument, and the leak rate requirement is less than or equal to 1.33 multiplied by 10 -9Pa·m3/s.
The sealing performance of the float assembly applying the original state power transmission structure is generally 0.9 multiplied by 10 -9～1.3×10-9Pa·m3/s, and the safety margin is small. Because of the specificity of the matching bonding of various materials of the bonding structure, the sealing performance of the bonding structure is easily influenced by the change of high and low temperature environments; the float assembly is required to be subjected to temperature changing conditions for tens of times after sealing is finished until the instrument is delivered, the high-low temperature changing conditions can cause the problem that the sealing performance of the float is reduced, even the leak rate is out of tolerance, the once-assembled sealing qualification rate of the float assembly is affected, and meanwhile the improvement of the later-stage application reliability and precision of the instrument is restricted.
Disclosure of Invention
The invention solves the technical problems that: the utility model provides a high leakproofness ability transmission structure for liquid float instrument, not only can realize that accurate structure is internal and external to transmit electricity reliably, insulating reliable, has improved the leakproofness of product by a wide margin moreover, when improving product production qualification rate, has improved the long-term operational reliability and the stability of liquid float instrument.
The solution of the invention is as follows:
the high-sealing-performance power transmission structure for the liquid floating instrument comprises a binding post, a sealing insulating short sleeve, a brazing filler metal, a sealing insulating long sleeve and a lead; wherein the outer float assembly is of a hollow columnar structure; the shaft end of the float component is provided with a wire through hole; the binding post is of a cylindrical structure with a blind hole at one axial end; one end of the lead extends into the blind hole of the binding post, and the outer wall of the lead is welded with the inner wall of the blind hole of the binding post through brazing filler metal; the sealing insulating short sleeve is sleeved on the outer wall of the binding post; the sealing insulation long sleeve is sleeved on the outer wall of the lead, and the axially opposite surfaces of the sealing insulation long sleeve and the sealing insulation short sleeve are butted; the binding post, the sealing insulating short sleeve, the brazing filler metal, the sealing insulating long sleeve and the lead form a power transmission structure; the power transmission structure is fixedly installed in the through line hole along the axial direction.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the extending end of the lead wire points to the inner cavity of the float assembly; the extending end of the binding post points to the outer side of the float assembly; the end face of the lead wire hole, which is positioned at the extending end of the lead wire, is provided with a second glue storage groove; the end face of the extending end of the binding post is provided with a first glue storage groove.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the first glue storage groove and the second glue storage groove are annular grooves, the first glue storage groove and the second glue storage groove are the same in size, and the radial groove widths are 0.2-0.4mm; the groove depth is 0.5-1mm.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the low-linear expansion high-temperature sealant is adopted to fill the first glue storage groove and the second glue storage groove between the sealing insulation short sleeve and the binding post, between the sealing insulation long sleeve and the lead, between the sealing insulation short sleeve and the through hole, between the sealing insulation long sleeve and the through hole.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the linear thermal expansion coefficient difference between the sealing insulating short sleeve and the binding post, between the sealing insulating long sleeve and the lead wire, between the sealing insulating short sleeve and the through wire hole and between the sealing insulating long sleeve and the through wire hole is not more than 2 multiplied by 10 -5/DEG C.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the through line hole is of a step hole structure; the sealing insulating long sleeve is positioned in the small-diameter section of the through wire hole, and the sealing insulating short sleeve is positioned in the large-diameter section of the through wire hole; axial positioning of the sealing insulating short sleeve and the sealing insulating long sleeve is realized through the step holes; the outer end surface of the sealed insulation long sleeve is level with the end surface of the through line hole, which points to the inner cavity of the float assembly; the outer end face of the sealing insulation short sleeve is flush with the end face of the through line hole, which is back to the inner cavity of the float assembly.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the binding post is made of silver-plated copper materials; the sealing insulating short sleeve and the sealing insulating long sleeve are made of ceramic materials.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the lead is a single-strand wire material capable of being glued.
In the high-sealing-performance power transmission structure for the liquid floating instrument, the leakage rate of the float assembly after the power transmission structure is installed is improved to 5.0 multiplied by 10 -10Pa·m3/s.
The high-sealing-performance power transmission structure for the liquid floating instrument comprises the following mounting processes:
Inserting the lead into the blind hole at the end part of the binding post, and welding by brazing filler metal; sleeving the sealing insulating short sleeve into the outer wall of the binding post, and integrally installing the sealing insulating short sleeve into the through hole; the end face of the sealing insulation short sleeve is attached to the end face of the through wire hole; and sleeving the sealing insulating long sleeve on the outer wall of the lead, and pushing the sealing insulating long sleeve into the through wire hole.
Compared with the prior art, the invention has the beneficial effects that:
(1) The invention ensures reliable power transmission and insulation inside and outside the floater without affecting the integral structure of the instrument, improves the sealing performance of the floater from the leakage rate level of 1.0 multiplied by 10 -9Pa·m3/s to 5.0 multiplied by 10 -10Pa·m3/s of the original structure, and improves the safety margin of products;
(2) In the actual production process of the product, the one-time assembly sealing qualification rate of the floater is improved to more than 90% from 65% of the original structure, so that the repairing cost is greatly reduced, and the productivity and the production efficiency are improved;
(3) The invention reduces the risk of bubbles and seepage caused by micro leakage of the floater and improves the long-term precision and reliability of the instrument.
Drawings
Fig. 1 is a schematic diagram of a power transmission structure according to the present invention.
Detailed Description
The invention is further illustrated below with reference to examples.
In order to improve the sealing performance of the original power transmission structure, the invention provides the high-sealing performance power transmission structure for the liquid floating instrument, and the sealing performance of a float assembly is improved on the premise of ensuring the reliable power transmission inside and outside a float, so that the design margin and the production qualification rate of products are improved, and the reliability and the precision risk of later-stage application of the instrument are reduced.
The power transmission structure, as shown in figure 1, specifically comprises a binding post 2, a sealing insulation short sleeve 4, a brazing filler metal 5, a sealing insulation long sleeve 6 and a lead 8; wherein the outer float assembly is of a hollow columnar structure; the shaft end of the float component is provided with a wire through hole 1; the binding post 2 is of a cylindrical structure with a blind hole at one axial end; one end of the lead 8 extends into a blind hole of the binding post 2, and the outer wall of the lead 8 is welded with the inner wall of the blind hole of the binding post 2 through the brazing filler metal 5; the sealing insulating short sleeve 4 is sleeved on the outer wall of the binding post 2; the long sealing insulating sleeve 6 is sleeved on the outer wall of the lead 8, and the opposite axial surfaces of the long sealing insulating sleeve 6 and the short sealing insulating sleeve 4 are butted; the binding post 2, the sealing insulating short sleeve 4, the brazing filler metal 5, the sealing insulating long sleeve 6 and the lead 8 form a power transmission structure; the power transmission structure is fixedly arranged in the through hole 1 along the axial direction.
The protruding end of the lead wire 8 points to the inner cavity of the float assembly; the protruding end of the binding post 2 points to the outer side of the float assembly; the end face of the through hole 1, which is positioned at the extending end of the lead 8, is provided with a second glue storage groove 7; the end face of the through hole 1, which is positioned at the extending end of the binding post 2, is provided with a first glue storage groove 3.
The first glue storage groove 3 and the second glue storage groove 7 are annular grooves, the first glue storage groove 3 and the second glue storage groove 7 are the same in size, and the radial groove widths are 0.2-0.4mm; the groove depth is 0.5-1mm. The sealing device is used for redundant sealing and absorbing external force impact.
The low-linear expansion high-temperature sealant is filled between the sealing insulating short sleeve 4 and the binding post 2, between the sealing insulating long sleeve 6 and the lead 8, between the sealing insulating short sleeve 4 and the through wire hole 1, between the sealing insulating long sleeve 6 and the through wire hole 1, and between the first glue storage groove 3 and the second glue storage groove 7.
The linear thermal expansion coefficient difference between the sealing insulating short sleeve 4 and the binding post 2, between the sealing insulating long sleeve 6 and the lead 8, between the sealing insulating short sleeve 4 and the through wire hole 1 and between the sealing insulating long sleeve 6 and the through wire hole 1 is not more than 2 multiplied by 10 -5/DEG C.
The through line hole 1 is of a step hole structure; the sealing insulating long sleeve 6 is positioned in the small-diameter section of the through wire hole 1, and the sealing insulating short sleeve 4 is positioned in the large-diameter section of the through wire hole 1; the axial positioning of the sealing insulating short sleeve 4 and the sealing insulating long sleeve 6 is realized through the step holes; the outer end surface of the sealing insulating long sleeve 6 is level with the end surface of the through line hole 1, which points to the inner cavity of the float assembly; the outer end surface of the sealing insulation short sleeve 4 is flush with the end surface of the through line hole 1, which is back to the inner cavity of the float assembly.
The wire through hole 1 is a step hole with a positioning function, the binding post 2 is a power transmission structure with one end made of silver-plated copper material and capable of being inserted and welded with a lead wire, the sealing insulating short sleeve 4 and the sealing insulating long sleeve 6 are cylindrical tubes made of ceramic materials with insulating property and air tightness of electronic component structures, and the lead wire 8 is made of a single-strand wire material capable of being glued. The leads 8 are single strand wires that can be glued.
The leakage rate of the float assembly after the power transmission structure is installed is improved to 5.0 multiplied by 10 -10Pa·m3/s.
The installation process of the power transmission structure is as follows:
The lead 8 is inserted into a blind hole at the end part of the binding post 2 and welded by the brazing filler metal 5; sleeving a sealing insulating short sleeve 4 on the outer wall of the binding post 2, and integrally installing the sealing insulating short sleeve into the through hole 1; the end face of the sealing insulation short sleeve 4 is attached to the end face of the through wire hole 1; the long sealing and insulating sleeve 6 is sleeved on the outer wall of the lead wire 8, and the long sealing and insulating sleeve 6 is pushed into the through wire hole 1. In addition, the concrete process of gluing is as follows:
And welding the lead 8 with the binding post 2 in a brazing mode, gluing the bonding surface of the outer circle of the binding post, sleeving the sealing insulating short sleeve 4 into the binding post 2 until the structure is limited, and solidifying the glue solution according to the requirement to form the binding post assembly.
And (3) gluing the excircle of the binding post assembly, filling the excircle of the binding post assembly into the through hole 1 until the structure is limited, filling glue solution into the glue storage tank 3, and solidifying the glue solution according to requirements.
The sealing insulating long sleeve 6 passes through the lead 8, a sealing cavity line-passing step hole is filled from the other side, glue solution is filled in the glue storage groove 7 and all the grooves in the structure, glue can be filled under the condition of vacuumizing in order to avoid the influence of residual bubbles in the glue solution on sealing performance, and finally the glue solution is solidified according to requirements.
The invention ensures reliable power transmission and insulation inside and outside the floater without affecting the integral structure of the instrument, improves the sealing performance of the floater from the leakage rate level of 1.0 multiplied by 10 -9Pa·m3/s to 5.0 multiplied by 10 -10Pa·m3/s of the original structure, and improves the safety margin of products; in the actual production of the product, the one-time assembly sealing qualification rate of the floater is improved to more than 90% from 65% of the original structure, so that the repairing cost is greatly reduced, and the productivity and the production efficiency are improved; and the risk of bubbles and seepage caused by micro leakage of the floater is reduced, and the long-term accuracy and reliability of the instrument are improved.
Although the present invention has been described in terms of the preferred embodiments, it is not intended to be limited to the embodiments, and any person skilled in the art can make any possible variations and modifications to the technical solution of the present invention by using the methods and technical matters disclosed above without departing from the spirit and scope of the present invention, so any simple modifications, equivalent variations and modifications to the embodiments described above according to the technical matters of the present invention are within the scope of the technical matters of the present invention.
Claims (6)
1. The utility model provides a high leakproofness ability transmission of electricity structure for liquid instrument that floats which characterized in that: the device comprises a binding post (2), a sealing insulating short sleeve (4), a brazing filler metal (5), a sealing insulating long sleeve (6) and a lead (8); wherein the outer float assembly is of a hollow columnar structure; the shaft end of the float component is provided with a wire through hole (1); the binding post (2) is of a cylindrical structure with a blind hole at one axial end; one end of the lead (8) extends into a blind hole of the binding post (2), and the outer wall of the lead (8) is welded with the inner wall of the blind hole of the binding post (2) through a brazing filler metal (5); the sealing insulating short sleeve (4) is sleeved on the outer wall of the binding post (2); the sealing insulation long sleeve (6) is sleeved on the outer wall of the lead (8), and the sealing insulation long sleeve (6) is in butt joint with the axial opposite surface of the sealing insulation short sleeve (4); the wiring terminal (2), the sealing insulating short sleeve (4), the brazing filler metal (5), the sealing insulating long sleeve (6) and the lead (8) form a power transmission structure; the power transmission structure is fixedly arranged in the through line hole (1) along the axial direction;
the extending end of the lead wire (8) points to the inner cavity of the float assembly; the extending end of the binding post (2) points to the outer side of the float assembly; the end face of the wire through hole (1) positioned at the extending end of the lead wire (8) is provided with a second glue storage groove (7); the end face of the wire through hole (1) positioned at the extending end of the binding post (2) is provided with a first glue storage groove (3);
The first glue storage groove (3) and the second glue storage groove (7) are annular grooves, the first glue storage groove (3) and the second glue storage groove (7) are the same in size, and the radial groove widths are 0.2-0.4mm; the groove depth is 0.5-1mm;
The low-linear expansion high-temperature sealant is filled between the sealing insulating short sleeve (4) and the binding post (2), between the sealing insulating long sleeve (6) and the lead (8), between the sealing insulating short sleeve (4) and the through wire hole (1), between the sealing insulating long sleeve (6) and the through wire hole (1), and between the first glue storage groove (3) and the second glue storage groove (7);
The through line hole (1) is of a step hole structure; the sealing insulation long sleeve (6) is positioned in the small-diameter section of the through hole (1), and the sealing insulation short sleeve (4) is positioned in the large-diameter section of the through hole (1); the axial positioning of the sealing insulating short sleeve (4) and the sealing insulating long sleeve (6) is realized through the step holes; the outer end surface of the sealing insulating long sleeve (6) is level with the end surface of the through line hole (1) pointing to the inner cavity of the float assembly; the outer end face of the sealing insulation short sleeve (4) is flush with the end face of the through line hole (1) back to the inner cavity of the float assembly.
2. The high-sealing-performance power transmission structure for a liquid floating instrument according to claim 1, wherein: the linear thermal expansion coefficient difference between the sealing insulating short sleeve (4) and the binding post (2), between the sealing insulating long sleeve (6) and the lead (8), between the sealing insulating short sleeve (4) and the through wire hole (1) and between the sealing insulating long sleeve (6) and the through wire hole (1) is not more than 2 multiplied by 10 -5/DEG C.
3. The high-sealing-performance power transmission structure for a liquid floating instrument according to claim 2, wherein: the binding post (2) is made of silver-plated copper material; the sealing insulating short sleeve (4) and the sealing insulating long sleeve (6) are made of ceramic materials.
4. A high sealing performance power transmission structure for a liquid floating meter according to claim 3, wherein: the lead (8) is a single strand wire material which can be glued.
5. The high-sealing-performance power transmission structure for the liquid floating instrument according to claim 4, wherein: the leakage rate of the float assembly after the power transmission structure is installed is improved to 5.0 multiplied by 10 -10Pa·m3/s.
6. The high-sealing-performance power transmission structure for the liquid floating instrument according to claim 5, wherein: the installation process of the power transmission structure is as follows:
The lead (8) is inserted into a blind hole at the end part of the binding post (2) and welded by the brazing filler metal (5); sleeving a sealing insulating short sleeve (4) on the outer wall of the binding post (2), and integrally installing the sealing insulating short sleeve into the wire through hole (1); the end face of the sealing insulation short sleeve (4) is attached to the end face of the through wire hole (1); and sleeving the sealing insulating long sleeve (6) on the outer wall of the lead (8), and pushing the sealing insulating long sleeve (6) into the through hole (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110968007.2A CN113823949B (en) | 2021-08-23 | 2021-08-23 | High-sealing-performance power transmission structure for liquid floating instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110968007.2A CN113823949B (en) | 2021-08-23 | 2021-08-23 | High-sealing-performance power transmission structure for liquid floating instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113823949A CN113823949A (en) | 2021-12-21 |
| CN113823949B true CN113823949B (en) | 2024-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110968007.2A Active CN113823949B (en) | 2021-08-23 | 2021-08-23 | High-sealing-performance power transmission structure for liquid floating instrument |
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| Country | Link |
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| CN (1) | CN113823949B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4605272A (en) * | 1978-08-24 | 1986-08-12 | Reynolds Industries, Inc. | High voltage electrical connector |
| CN101834482A (en) * | 2010-05-19 | 2010-09-15 | 上海中科深江电动车辆有限公司 | Outlet structure of power line for driving motor of electric vehicle |
| CN103474829A (en) * | 2013-09-13 | 2013-12-25 | 遵义市飞宇电子有限公司 | Sealing suspension connector |
| CN204089411U (en) * | 2014-09-01 | 2015-01-07 | 南京久驰机电实业有限公司 | Safe motor |
| CN211151655U (en) * | 2020-01-15 | 2020-07-31 | 青岛中加特电气股份有限公司 | Paint-feeding-preventing motor lead connector |
| CN211739167U (en) * | 2020-03-17 | 2020-10-23 | 丹阳市亨通电子有限公司 | Ignition device of well drilling machine |
-
2021
- 2021-08-23 CN CN202110968007.2A patent/CN113823949B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4605272A (en) * | 1978-08-24 | 1986-08-12 | Reynolds Industries, Inc. | High voltage electrical connector |
| CN101834482A (en) * | 2010-05-19 | 2010-09-15 | 上海中科深江电动车辆有限公司 | Outlet structure of power line for driving motor of electric vehicle |
| CN103474829A (en) * | 2013-09-13 | 2013-12-25 | 遵义市飞宇电子有限公司 | Sealing suspension connector |
| CN204089411U (en) * | 2014-09-01 | 2015-01-07 | 南京久驰机电实业有限公司 | Safe motor |
| CN211151655U (en) * | 2020-01-15 | 2020-07-31 | 青岛中加特电气股份有限公司 | Paint-feeding-preventing motor lead connector |
| CN211739167U (en) * | 2020-03-17 | 2020-10-23 | 丹阳市亨通电子有限公司 | Ignition device of well drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113823949A (en) | 2021-12-21 |
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