CN113969985B - Electronic expansion valve - Google Patents
Electronic expansion valve Download PDFInfo
- Publication number
- CN113969985B CN113969985B CN202010725204.7A CN202010725204A CN113969985B CN 113969985 B CN113969985 B CN 113969985B CN 202010725204 A CN202010725204 A CN 202010725204A CN 113969985 B CN113969985 B CN 113969985B
- Authority
- CN
- China
- Prior art keywords
- assembly
- valve body
- coil
- electronic expansion
- box cover
- 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.)
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Links
- 238000001514 detection method Methods 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 abstract description 13
- 238000010586 diagram Methods 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 125000003003 spiro group Chemical group 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/005—Electrical or magnetic means for measuring fluid parameters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/01—Geometry problems, e.g. for reducing size
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electrically Driven Valve-Operating Means (AREA)
Abstract
The invention provides an electronic expansion valve. The electronic expansion valve comprises a valve body (1), a rotor assembly (2), a valve needle assembly (3), a coil assembly (4) and a box cover (5), wherein the box cover (5) is arranged on the valve body (1) and forms a closed space with the valve body (1), the rotor assembly (2) and the coil assembly (4) are arranged in the closed space, and the valve needle assembly (3) is in driving connection with the rotor assembly (2). According to the electronic expansion valve, the installation structure of the electronic expansion valve can be simplified, and the installation efficiency is improved.
Description
Technical Field
The invention relates to the technical field of fluid control, in particular to an electronic expansion valve.
Background
The refrigeration system includes a compressor, an evaporator, a condenser, and a throttling element, typically employing an electronic expansion valve as the throttling element, the electronic expansion valve being used to throttle the refrigerant of the refrigeration system. The electronic expansion valve is provided with an electric control board, and in order to ensure the working performance of the electric control board, the working environment of the electric control board needs to be sealed.
The existing electronic expansion valve, the electrical box and the coil are integrally injection molded, and in the installation process, injection molding is needed according to the structure of the electrical box and the structure of the coil, so that the structure is more complex, and the assembly efficiency is lower.
Disclosure of Invention
The invention aims to provide an electronic expansion valve, which can simplify the installation structure of the electronic expansion valve and improve the installation efficiency.
In order to solve the technical problem, as one aspect of the invention, an electronic expansion valve is provided, which comprises a valve body, a rotor assembly, a valve needle assembly, a coil assembly and a box cover, wherein the box cover is arranged on the valve body and forms a closed space with the valve body, the rotor assembly and the coil assembly are arranged in the closed space, and the valve needle assembly is in driving connection with the rotor assembly.
According to the electronic expansion valve, the box cover and the coil assembly are arranged separately, and the closed space is formed between the box cover and the valve body, so that the coil assembly can be positioned in a closed environment without plastic packaging, the installation structure of the coil assembly is simplified, the assembly difficulty of the coil assembly and the box cover is reduced, and the assembly efficiency of the electronic expansion valve is improved.
Drawings
FIG. 1 is a schematic diagram showing an exploded structure of an electronic expansion valve according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a cross-sectional structure of an electronic expansion valve according to an embodiment of the present invention;
FIG. 3 is a schematic perspective view showing an electronic expansion valve according to an embodiment of the present invention;
FIG. 4 is a schematic diagram showing a front view of an electronic expansion valve according to an embodiment of the present invention;
FIG. 5 is a schematic diagram showing a rear view of an electronic expansion valve according to an embodiment of the present invention;
Fig. 6 is a schematic cross-sectional view showing an electronic expansion valve according to another embodiment of the present invention.
Reference numerals in the drawings: 1. a valve body; 2. a rotor assembly; 3. a valve needle assembly; 4. a coil assembly; 5. a box cover; 6. an electric control board; 7. a coil fixing frame; 8. a mounting plate; 9. a connecting arm; 10. a mounting base; 11. a column; 12. an angle sensor; 13. a detection channel; 14. a detection sensor; 15. a wire outlet structure; 16. a wire outlet hole; 17. sealing grooves; 18. and (5) a sealing structure.
Detailed Description
The following describes embodiments of the invention in detail, but the invention may be practiced in a variety of different ways, as defined and covered by the claims.
Referring to fig. 1to 6, according to an embodiment of the present invention, an electronic expansion valve includes a valve body 1, a rotor assembly 2, a valve needle assembly 3, a coil assembly 4, and a cap 5, wherein the cap 5 is mounted on the valve body 1 and forms a closed space with the valve body 1, the rotor assembly 2 and the coil assembly 4 are disposed in the closed space, and the valve needle assembly 3 is in driving connection with the rotor assembly 2.
The electronic expansion valve is characterized in that the box cover 5 and the coil assembly 4 are arranged separately, and a closed space is formed between the box cover 5 and the valve body 1, so that the coil assembly 4 can be located in a closed environment without plastic packaging, the installation structure of the coil assembly 4 is simplified, the assembly difficulty of the coil assembly 4 and the box cover 5 is reduced, and the assembly efficiency of the electronic expansion valve is improved.
In the assembly process of the electronic expansion valve, as the box cover 5 and the coil assembly 4 are arranged separately, the connection relation between the box cover 5 and the coil assembly 4 is not needed to be considered, and the box cover 5 can be installed finally after the components in the closed space are installed, so that the installation sequence is more reasonable, the installation structure is simpler, and the assembly efficiency is higher.
The box cover 5 and the valve body 1 are fixedly connected together, and the fixed connection mode can be detachable fixed connection, such as screw connection or clamping connection, or non-detachable fixed connection, such as welding or riveting, so long as a good airtight space can be formed between the box cover 5 and the valve body 1.
In this embodiment, an annular seal groove 17 is provided between the lid 5 and the valve body 1, and an annular seal structure 18 is provided in the seal groove 17. The seal groove 17 may be provided on the mating end face of the cap 5, or the mating end face of the valve body 1, or the mating end faces of the cap 5 and the valve body 1, respectively. The sealing structure 18 may be a sealing filler material or an annular sealing ring. The sealing ring in the embodiment is a rectangular sealing ring, and is matched with the shape of the sealing contact position of the box cover 5 and the valve body 1.
An electric control board 6 is also arranged in the closed space, and the electric control board 6 is electrically connected with the coil assembly 4. The electric control board 6 and the coil assembly 4 are arranged in the airtight space together, so that connecting wires between the electric control board 6 and the coil assembly 4 can be positioned in the box cover 5, and a wire connecting hole is not required to be arranged on the box cover 5, the integrated design of the electric control board 6 and the coil assembly 4 can be further realized, the structure of the box cover 5 can be simplified, and the layout of the electric control board 6 and the coil assembly 4 in the box cover 5 is facilitated.
The closed space is also fixedly provided with a coil fixing frame 7, the coil fixing frame 7 is sleeved outside the rotor assembly 2, and the coil assembly 4 is arranged in the coil fixing frame 7 and is fixed through the coil fixing frame 7. The coil fixing frame 7 is used for fixing the coil assembly 4 after winding, and limiting the rotation of the coil, so that the stability and the reliability of the installation structure of the coil assembly 4 are ensured, and the working performance of the coil assembly 4 is ensured.
The coil fixing frame 7 comprises a mounting plate 8 and connecting arms 9 arranged at the edge of the mounting plate 8, wherein the plurality of connecting arms 9 are arranged at intervals along the periphery of the mounting plate 8, a limiting space is formed between the coil fixing frame and the rotor assembly 2, and the coil assembly 4 is arranged in the limiting space. The middle of mounting panel 8 is provided with the via hole, and rotor assembly 2 cover is established in mounting panel 8, and wherein rotor assembly 2 is including the shell, and mounting panel 8 installs outside the shell to fix on the shell. The plurality of connecting arms 9 are arranged at intervals to form a claw-shaped structure, the claw-shaped structure is buckled outside the coil assembly 4, the coil is fixed and limited, the coil is prevented from rotating or loosening, and the structural stability of the coil is improved.
The outer periphery side of the connecting arm 9 is provided with a mounting seat 10, and the electric control board 6 is fixedly arranged on the mounting seat 10. The setting of mount pad 10 is for the installation of conveniently carrying out automatically controlled board 6 for automatically controlled board 6 can set up in lid 5 on the basis that does not additionally set up other structures, thereby can enough simplify automatically controlled board 6's mounting structure, can make the mounting structure of each spare part in the lid 5 compacter again, and space utilization is more reasonable, also can make the structural advantage full play of coil mount 7 simultaneously, make full use of airtight space more.
The mount pad 10 sets up in the one side that the linking arm 9 kept away from mounting panel 8, is provided with the mounting hole on the mount pad 10, and automatically controlled board 6 is fixed on the mount pad 10 through the bolt that sets up in the mounting hole. The mount pad 10 in this embodiment is the erection column with linking arm 9 integrated into one piece, wherein is provided with the bolt hole on the erection column, and the edge of automatically controlled board 6 is provided with the mounting hole, and the screw passes behind the mounting hole with the bolt hole spiro union to compress tightly automatically controlled board 6 on the erection column, form the installation fixed to automatically controlled board 6. In this embodiment, the fixed setting in one side of automatically controlled board 6 is on mount pad 10, and the opposite side cantilever setting can make full use of the space in rotor assembly 2 one side, is difficult for taking place to interfere between other structures, and the position of automatically controlled board 6 can be located the centre basically moreover, and is convenient for be connected with other electrical components more, is convenient for wire distribution, has reduced the wiring degree of difficulty.
The top of mounting panel 8 is provided with stand 11, is fixedly provided with angle sensor 12 on stand 11. Through the mode that sets up stand 11 on coil mount 7 for more mounting structure has been integrated on the coil mount 7, more electronic component's fixed mounting can be realized, space is saved more, has also reduced spare part's quantity, has reduced the part cost.
The angle sensor 12 can be installed at the top of the rotor assembly 2, and also can be installed at the side part of the rotor assembly 2, so that the installation position is more flexible, and the installation difficulty of the angle sensor 12 is reduced.
A detection channel 13 is arranged in the valve body 1, a detection sensor 14 for detecting temperature and/or pressure is arranged on the valve body 1, and a detection head of the detection sensor 14 extends into the detection channel 13. In this embodiment, the valve body 1 includes a valve body inlet a, a valve body outlet B, a detection inlet C and a detection outlet D, wherein a detection channel 13 is formed between the detection inlet C and the detection outlet D, and a detection head of the detection sensor 14 extends into the detection channel 13, so as to conveniently detect the refrigerant in the detection channel 13. A throttle passage is formed between the valve body inlet a and the valve body outlet B, wherein the body of the electronic expansion valve is disposed within the throttle passage. The detection sensor 14 may be a pressure sensor, a temperature sensor, or an integrated pressure and temperature sensor, and may be specifically selected according to needs.
In this embodiment, the coil assembly 4, the angle sensor 12 and the detection sensor 14 are all electrically connected to the electronic control board 6 through flexible flat cables, so that the wires can be routed more flexibly.
Referring to fig. 1 to 4 in combination, in one embodiment of the present application, a wire outlet structure 15 is provided on the box cover 5, and a connection wire of the electronic control board 6 passes through the wire outlet structure 15 and out of the box cover 5. In this embodiment, the outlet structure 15 needs to be disposed on the electric control board 6, so that the electric control board 6 can smoothly outlet through the box cover 5.
Referring to fig. 5 in combination, in another embodiment of the present application, which is basically the same as the previous embodiment, the difference is that in this embodiment, a wire outlet hole 16 and a wire outlet structure 15 are provided on the valve body 1, the wire outlet structure 15 is provided corresponding to the wire outlet hole 16, and the connection wire of the electric control board 6 passes through the wire outlet structure 15 and out of the box cover 5. In this embodiment, the outlet structure 15 is disposed on the valve body 1, rather than the box cover 5, so that the overall structure of the box cover 5 is more regular, the structure is simpler, and the processing and manufacturing are more convenient.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The electronic expansion valve is characterized by comprising a valve body (1), a rotor assembly (2), a valve needle assembly (3), a coil assembly (4) and a box cover (5), wherein the box cover (5) is arranged on the valve body (1) and forms a closed space with the valve body (1), the rotor assembly (2) and the coil assembly (4) are arranged in the closed space, and the valve needle assembly (3) is in driving connection with the rotor assembly (2); an electric control plate (6) is further arranged in the closed space, and the electric control plate (6) is in conductive connection with the coil assembly (4); a coil fixing frame (7) is fixedly arranged in the closed space, the coil fixing frame (7) is sleeved outside the rotor assembly (2), and the coil assembly (4) is arranged in the coil fixing frame (7) and is fixed through the coil fixing frame (7); the coil fixing frame (7) comprises a mounting plate (8) and connecting arms (9) arranged at the edge of the mounting plate (8), the connecting arms (9) are arranged at intervals along the periphery of the mounting plate (8) and form a limiting space with the rotor assembly (2), and the coil assembly (4) is arranged in the limiting space; the periphery side of the connecting arm (9) is provided with a mounting seat (10), and the electric control plate (6) is fixedly arranged on the mounting seat (10); the mounting seat (10) is arranged on one side, far away from the mounting plate (8), of the connecting arm (9), a mounting hole is formed in the mounting seat (10), and the electric control plate (6) is fixed on the mounting seat (10) through a bolt arranged in the mounting hole; the top of mounting panel (8) is provided with stand (11), fixedly on stand (11) be provided with angle sensor (12).
2. Electronic expansion valve according to claim 1, characterized in that a detection channel (13) is arranged in the valve body (1), a detection sensor (14) for detecting temperature and/or pressure is arranged on the valve body (1), and a detection head of the detection sensor (14) extends into the detection channel (13).
3. The electronic expansion valve according to claim 1, characterized in that an outlet structure (15) is arranged on the box cover (5), and a connecting wire of the electric control plate (6) passes through the outlet structure (15) and passes out of the box cover (5); or, be provided with wire outlet (16) and wire outlet structure (15) on valve body (1), wire outlet structure (15) corresponds wire outlet (16) set up, the connecting wire of automatically controlled board (6) is through wire outlet structure (15) wears out outside lid (5).
4. Electronic expansion valve according to claim 1, characterized in that an annular sealing groove (17) is arranged between the box cover (5) and the valve body (1), and an annular sealing structure (18) is arranged in the sealing groove (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725204.7A CN113969985B (en) | 2020-07-24 | 2020-07-24 | Electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010725204.7A CN113969985B (en) | 2020-07-24 | 2020-07-24 | Electronic expansion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113969985A CN113969985A (en) | 2022-01-25 |
| CN113969985B true CN113969985B (en) | 2024-05-17 |
Family
ID=79585763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010725204.7A Active CN113969985B (en) | 2020-07-24 | 2020-07-24 | Electronic expansion valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113969985B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116995614B (en) * | 2023-09-27 | 2024-01-26 | 广东电网有限责任公司肇庆供电局 | Outdoor termination of low pressure photovoltaic |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004353679A (en) * | 2003-04-02 | 2004-12-16 | Fuji Koki Corp | Motor operated valve |
| CN201757210U (en) * | 2010-06-25 | 2011-03-09 | 浙江盾安禾田金属有限公司 | Coil and orientation card connecting structure and electronic expansion valve with the connecting structure |
| CN203687476U (en) * | 2013-10-30 | 2014-07-02 | 浙江盾安禾田金属有限公司 | Coil connecting mechanism and electronic expansion valve |
| CN108386585A (en) * | 2018-03-13 | 2018-08-10 | 珠海励高精工制造有限公司 | Electric expansion valve and air conditioner |
| TWI641775B (en) * | 2017-07-20 | 2018-11-21 | 怡誠興業股份有限公司 | Solenoid valve coil device |
| CN208935520U (en) * | 2018-07-28 | 2019-06-04 | 天津华信机械有限公司 | Air-conditioning, electric expansion valve and its electromagnetic coil structure |
| CN110735959A (en) * | 2018-07-20 | 2020-01-31 | 杭州三花研究院有限公司 | electronic expansion valve and thermal management assembly |
| CN111237520A (en) * | 2018-11-29 | 2020-06-05 | 杭州三花研究院有限公司 | Valve assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208587571U (en) * | 2018-07-20 | 2019-03-08 | 浙江盈亿机械股份有限公司 | A kind of solenoid valve |
-
2020
- 2020-07-24 CN CN202010725204.7A patent/CN113969985B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004353679A (en) * | 2003-04-02 | 2004-12-16 | Fuji Koki Corp | Motor operated valve |
| CN201757210U (en) * | 2010-06-25 | 2011-03-09 | 浙江盾安禾田金属有限公司 | Coil and orientation card connecting structure and electronic expansion valve with the connecting structure |
| CN203687476U (en) * | 2013-10-30 | 2014-07-02 | 浙江盾安禾田金属有限公司 | Coil connecting mechanism and electronic expansion valve |
| TWI641775B (en) * | 2017-07-20 | 2018-11-21 | 怡誠興業股份有限公司 | Solenoid valve coil device |
| CN108386585A (en) * | 2018-03-13 | 2018-08-10 | 珠海励高精工制造有限公司 | Electric expansion valve and air conditioner |
| CN110735959A (en) * | 2018-07-20 | 2020-01-31 | 杭州三花研究院有限公司 | electronic expansion valve and thermal management assembly |
| CN208935520U (en) * | 2018-07-28 | 2019-06-04 | 天津华信机械有限公司 | Air-conditioning, electric expansion valve and its electromagnetic coil structure |
| CN111237520A (en) * | 2018-11-29 | 2020-06-05 | 杭州三花研究院有限公司 | Valve assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113969985A (en) | 2022-01-25 |
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Effective date of registration: 20230531 Address after: Floor 11-230, Building 15, International Car City, No. 309 Green Valley Avenue, Nanmingshan Street, Liandu District, Lishui City, Zhejiang Province, 323010 Applicant after: Zhejiang Zhihui Automotive Thermal Management Technology Co.,Ltd. Address before: 323700 No.2 Guangyuan Road, regression project, Longquan City, Lishui City, Zhejiang Province Applicant before: Longquan Huifeng import and Export Co.,Ltd. |
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