CN217209914U - Electronic temperature control device - Google Patents
Electronic temperature control device Download PDFInfo
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- CN217209914U CN217209914U CN202220232583.0U CN202220232583U CN217209914U CN 217209914 U CN217209914 U CN 217209914U CN 202220232583 U CN202220232583 U CN 202220232583U CN 217209914 U CN217209914 U CN 217209914U
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Abstract
The application relates to an electronic temperature control device in the technical field of refrigeration and heating, which comprises a first heat exchanger and an electronic refrigeration and heating group; the electronic refrigerating and heating unit comprises a heat exchanger and a semiconductor refrigerating sheet arranged on one side of the heat exchanger, wherein the heat exchanger is close to one side of the semiconductor refrigerating sheet; the water inlet of the heat exchanger is connected with the water outlet of the first heat exchanger, the water outlet of the heat exchanger is connected with the water inlet of the first heat exchanger, and a first circulating water pump is connected to a pipeline between the water inlet of the heat exchanger and the water outlet of the first heat exchanger and/or a pipeline between the water outlet of the heat exchanger and the water inlet of the first heat exchanger. This application has reduced the production of noise, travelling comfort when having promoted staff service environment test equipment.
Description
Technical Field
The application relates to the technical field of refrigeration and heating, in particular to an electronic temperature control device.
Background
The environment test equipment is a general term for all test boxes simulating natural climate environments, wherein the test boxes comprise a high-low temperature test box, a constant temperature and humidity test box, an oven and the like; the existing environmental test equipment mostly adopts compression type refrigeration, and due to the existence of friction conditions between devices, relatively large noise is easily generated during operation, so that the service life and the maintenance cost of the environmental test equipment are reduced, and the generated noise easily influences the physical and psychological health of workers.
SUMMERY OF THE UTILITY MODEL
In order to reduce the production of noise, travelling comfort when promoting the staff and use environmental test equipment, this application provides an electron temperature regulating device.
The application provides an electronic temperature control device adopts following technical scheme:
an electronic temperature control device comprises a first heat exchanger and an electronic refrigerating and heating group; the electronic refrigerating and heating unit comprises a heat exchanger and a semiconductor refrigerating sheet arranged on one side of the heat exchanger, wherein the heat exchanger is close to one side of the semiconductor refrigerating sheet; the water inlet of the heat exchanger is connected with the water outlet of the first heat exchanger, the water outlet of the heat exchanger is connected with the water inlet of the first heat exchanger, and a first circulating water pump is connected to a pipeline between the water inlet of the heat exchanger and the water outlet of the first heat exchanger and/or a pipeline between the water outlet of the heat exchanger and the water inlet of the first heat exchanger.
By adopting the technical scheme, when the temperature in the cabin body needs to be adjusted, a worker can open the first circulating water pump and the remote control switch between the semiconductor refrigeration sheet and the power supply, circulating water in a circulating pipeline between the heat exchanger and the first heat exchanger can continuously flow from the water outlet of the heat exchanger to the water inlet of the first heat exchanger, the semiconductor refrigeration sheet can absorb heat on one side of the heat exchanger and emit the heat from the other side of the semiconductor refrigeration sheet, thereby regulating the temperature of the circulating water flowing through the heat exchanger, simultaneously regulating and controlling the temperature in the cabin body by the first heat exchanger, and finally realizing the purpose of cooling the space in the cabin body, therefore, the temperature in the cabin body is prevented from being controlled by a compression type refrigeration mode, the noise is reduced, and the comfort of workers in using the environmental test equipment is improved.
Optionally, the electronic refrigeration and heating unit further comprises a heat conductor, and the heat conductor is close to one side of the semiconductor refrigeration sheet, which is far away from the heat exchanger; the electronic temperature control device further comprises a second heat exchanger, a water inlet of the heat conductor is connected with a water outlet of the second heat exchanger, a water outlet of the heat conductor is connected with a water inlet of the second heat exchanger, and a second circulating water pump is connected to a pipeline between the water inlet of the heat conductor and the water outlet of the second heat exchanger and/or a pipeline between the water outlet of the heat conductor and the water inlet of the second heat exchanger.
Through adopting above-mentioned technical scheme, the second circulating water pump makes the circulating water in the circulation pipeline between heat conduction ware and the second heat exchanger continuous by the direction flow of second heat exchanger's delivery port to the water inlet of heat conduction ware, and the heat conduction ware internal circulating water can be continuous emits the heat to the semiconductor refrigeration piece and absorbs or required heat compensates to improve the effect of semiconductor refrigeration piece to the heat exchanger.
Optionally, a second water replenishing balancing device for replenishing water and cooling the corresponding circulating pipeline is arranged on the pipeline between the heat conductor and the second heat exchanger.
Through adopting above-mentioned technical scheme, the setting of second moisturizing balancing unit makes the circulating line internal circulation water between heat conduction ware and the second heat exchanger remain throughout in setting for the within range, has guaranteed the steady operation of device.
Optionally, a first water replenishing balancing device for replenishing water to the corresponding circulation pipeline and balancing the pressure of the pipeline is arranged on the pipeline between the heat exchanger and the first heat exchanger.
Through adopting above-mentioned technical scheme, the setting of first moisturizing balancing unit has realized the replenishment to the circulating line internal recycle water between heat exchanger and the first heat exchanger and to the balance of corresponding pipe pressure, forms open water circulating system simultaneously, reduction in production cost and maintenance cost.
Optionally, a cabin circulating fan for accelerating the air flow around the first heat exchanger is arranged on one side of the first heat exchanger.
By adopting the technical scheme, the air at the first heat exchanger is pumped into the cabin body by the cabin body circulating fan, so that the flowing efficiency of the air in the cabin body is improved, and the temperature of each area in the cabin body is controlled more uniformly and efficiently.
Optionally, the electronic temperature control device further comprises a controller, a circulating water temperature sensor in signal connection with the controller and used for monitoring the outlet water temperature of the heat exchanger, a cooling water temperature sensor for monitoring the inlet water temperature of the heat conductor, a cabin temperature sensor for monitoring the temperature in the cabin, and an environment temperature sensor for monitoring the environment temperature outside the cabin; and the controller is electrically connected with the first circulating water pump and the second circulating water pump.
By adopting the technical scheme, when the environment test equipment is used, the controller can receive the temperature values detected by the circulating water temperature sensor, the heat dissipation water temperature sensor, the cabin body temperature sensor and the environment temperature sensor, and automatically control and adjust the running power of the first circulating water pump and the second circulating water pump according to the actually required temperature of the cabin body, so that the energy-saving effect is achieved.
Optionally, the heat exchanger is provided with a plurality of heat exchangers, the semiconductor refrigeration sheets are respectively arranged on two opposite sides of each heat exchanger, the heat conductor is respectively arranged on two opposite sides of two semiconductor refrigeration sheets on the same heat exchanger, water inlets of all the heat exchangers are gathered together and connected with a water outlet of the first heat exchanger, water outlets of all the heat exchangers are gathered together and connected with a water inlet of the first heat exchanger, water inlets of all the heat conductors are gathered together and connected with a water outlet of the second heat exchanger, and water outlets of all the heat conductors are gathered together and connected with a water inlet of the second heat exchanger.
Optionally, the controller is electrically connected to a remote control switch between each semiconductor chilling plate and the power supply.
By adopting the technical scheme, when the environment test equipment is used, the controller can receive temperature values detected by the circulating water temperature sensor, the heat dissipation water temperature sensor, the cabin body temperature sensor and the environment temperature sensor, and according to the actually required temperature of the cabin body, the controller can automatically control and adjust the forward electrification, the reverse electrification or the closing of the remote control switch so as to control the starting quantity of the semiconductor refrigerating sheets, so that the energy-saving effect is further achieved.
Optionally, the heat exchanger and the channel through which water passes in the heat conductor are both arranged in a serpentine shape.
By adopting the technical scheme, the channels for water to pass through in the heat exchanger and the heat conductor are arranged in a snake shape, so that the water stroke is increased, and the heat exchange time is prolonged.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the comfort of workers when the environment test equipment is used is improved, by starting the first circulating water pump and the remote control switch between the semiconductor refrigeration sheet and the power supply, circulating water in a circulating pipeline between the heat exchanger and the first heat exchanger can continuously flow from the water outlet of the heat exchanger to the water inlet of the first heat exchanger, the semiconductor refrigeration sheet can absorb heat on one side of the heat exchanger and emit the heat from the other side of the semiconductor refrigeration sheet, so that the temperature of the circulating water flowing through the heat exchanger is adjusted, meanwhile, the temperature in the cabin body can be adjusted and controlled by the first heat exchanger, and finally, the purpose of cooling the space in the cabin body is realized, so that the temperature in the cabin body is prevented from being controlled by a compression refrigeration mode, and the generation of noise is reduced;
2. the utilization efficiency of the energy is improved, when the environment test equipment is used, the controller can receive temperature values detected by the circulating water temperature sensor, the heat dissipation water temperature sensor, the cabin body temperature sensor and the environment temperature sensor, the controller automatically controls and adjusts the running power of the first circulating water pump and the second circulating water pump according to the actually required temperature of the cabin body, and controls and adjusts the forward electrification, the reverse electrification or the closing of the remote control switch to control the starting quantity of the semiconductor refrigerating sheets, so that the energy-saving effect is achieved.
Drawings
FIG. 1 is a schematic diagram of an overall structure of an electronic temperature control device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of an electronic cooling and heating unit;
fig. 3 is a schematic structural view showing the first water replenishing balancer and the second water replenishing balancer.
Description of reference numerals: 1. a cabin body; 2. a first heat exchanger; 21. a cabin circulating fan; 22. a first conduit; 23. a second conduit; 24. a first circulating water pump; 25. a circulating water drain valve; 26. a circulating water temperature sensor; 3. an electronic refrigerating and heating unit; 30. a heat exchanger; 31. a semiconductor refrigeration sheet; 32. a heat conductor; 4. a second heat exchanger; 41. a third pipeline; 42. a fourth conduit; 43. a second circulating water pump; 44. a cooling water temperature sensor; 5. a first water replenishing balancing device; 51. an expansion tank; 52. an overflow valve; 53. a first connecting pipe; 54. a second connecting pipe; 6. a second water replenishing balancing device; 61. a heat radiation water tank; 62. a drain valve of the heat radiation water tank.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses an electronic temperature control device. Referring to fig. 1, the electronic temperature control device comprises a first heat exchanger 2, an electronic refrigerating and heating group 3 and a second heat exchanger 4 which are arranged on one side of the cabin 1, the first heat exchanger 2 is communicated with the space in the cabin 1 for adjusting the temperature in the cabin 1, and the first heat exchanger 2 and the second heat exchanger 4 are both provided with a water inlet and a water outlet; a first water replenishing balancing device 5 is arranged between the first heat exchanger 2 and the electronic refrigerating and heating group 3, and a second water replenishing balancing device 6 is arranged between the second heat exchanger 4 and the electronic refrigerating and heating group 3; the first heat exchanger 2 and the second heat exchanger 4 may be a fin heat exchanger 30, a coil heat exchanger 30, or the like, and specifically, in the embodiment of the present application, the fin heat exchanger 30 is used as both the first heat exchanger 2 and the second heat exchanger 4.
Referring to fig. 2, the electronic refrigerating and heating unit 3 includes a heat exchanger 30, a semiconductor refrigerating sheet 31 and a heat conductor 32, the heat exchanger 30 and the heat conductor 32 are respectively provided with a water inlet and a water outlet, and channels through which water passes, which are communicated with the corresponding water inlet and water outlet, in the heat exchanger 30 and the heat conductor 32 are arranged in a snake shape; wherein, the quantity of heat exchanger 30 can choose for use one, two, three etc, and concrete refrigeration and heating effect with the environmental test equipment carries out actual selection, and the quantity of heat exchanger 30 in this application embodiment uses two as the example, and semiconductor refrigeration piece 31 then respectively is provided with one in every heat exchanger 30 both sides that carry on the back mutually, and heat conductor 32 respectively is provided with one in the both sides that carry on the back mutually of two semiconductor refrigeration pieces 31 on same heat exchanger 30, and semiconductor refrigeration piece 31's the both sides that carry on the back mutually respectively with heat exchanger 30 and heat conductor 32 butt.
Referring to fig. 2 and 3, the water inlets of the two heat exchangers 30 are connected together, and a first pipeline 22 is connected between the water outlets of the two heat exchangers 2, the water outlets of the two heat exchangers 30 are connected together, and a second pipeline 23 is connected between the water inlets of the first heat exchanger 2, and a first circulating water pump 24 is connected to at least one of the first pipeline 22 or the second pipeline 23, in this embodiment, the first circulating water pump 24 is connected to the second pipeline 23 as an example; in addition, a circulating water drain valve 25 is connected to a low point of the second pipeline 23, so as to drain the circulating water in the circulating pipeline between the heat exchanger 30 and the first heat exchanger 2, and then, the corresponding devices are overhauled and maintained.
When the space in the cabin body 1 needs to be cooled, a worker can turn on the first circulating water pump 24 to enable the circulating water in the circulating pipeline between the heat exchanger 30 and the first heat exchanger 2 to continuously flow from the water outlet of the heat exchanger 30 to the water inlet of the first heat exchanger 2, and turn on the remote control switch between the semiconductor refrigeration sheet 31 and the power supply to enable the semiconductor refrigeration sheet 31 to be electrified, the semiconductor refrigeration sheet 31 can absorb the heat at one side of the heat exchanger 30 and emit the heat from the semiconductor refrigeration sheet 31 to one side of the heat conductor 32, so that the circulating water flowing through the heat exchanger 30 is cooled, the first heat exchanger 2 can directly or indirectly absorb the heat in the cabin body 1, and the purpose of cooling the space in the cabin body 1 is finally achieved; similarly, when the space in the cabin 1 needs to be heated up, the worker only needs to reversely switch on the remote control switch between the semiconductor refrigeration sheet 31 and the power supply, and the semiconductor refrigeration sheet 31 is transferred from the heat conductor 32 to one side of the heat exchanger 30, so that the temperature in the cabin 1 is prevented from being controlled by a compression refrigeration mode, the noise is reduced, and the comfort of the worker in using the environment test equipment is improved.
Referring to fig. 2 and 3, the water inlets of the four heat conductors 32 are connected together and connected with the water outlet of the second heat exchanger 4 through a third pipe 41, the water outlets of the four heat conductors 32 are connected together and connected with the water inlet of the second heat exchanger 4 through a fourth pipe 42, and a second circulating water pump 43 is connected to at least one of the third pipe 41 and the fourth pipe 42, wherein the third pipe 41 is connected with the second circulating water pump 43 as an example in the present embodiment; when the first water circulation pump 24 and the semiconductor refrigeration sheet 31 are turned on to control the temperature in the cabin 1, the worker can turn on the second water circulation pump 43 at the same time to make the circulating water in the circulating pipeline between the heat conductor 32 and the second heat exchanger 4 continuously flow from the water outlet of the second heat exchanger 4 to the water inlet of the heat conductor 32, the circulating water in the heat conductor 32 can release heat to the semiconductor refrigeration sheet 31 to absorb or compensate the heat required by the semiconductor refrigeration sheet 31, and then the second heat exchanger 4 releases or compensates the heat of the circulating water in the corresponding circulating pipeline, thereby improving the effect of the semiconductor refrigeration sheet 31 on the heat exchanger 30.
Referring to fig. 3, the first water replenishing balance device 5 includes an expansion tank 51, the expansion tank 51 is connected to the second pipe 23 between the first circulating water pump 24 and the heat exchanger 30 through a first connection pipe 53, and a connection point of the expansion tank 51 and the first connection pipe 53 is located below a liquid level of the expansion tank 51, the expansion tank 51 is further connected to the first pipe 22 through a second connection pipe 54, a connection point of the expansion tank 51 and the second connection pipe 54 is located above the liquid level of the expansion tank 51, and an overflow valve 52 is connected to the second connection pipe 54; when the first circulating water pump 24 is operated, water in the expansion water tank 51 can enter the second pipeline 23 through the first connecting pipe 53, and when the pressure in the circulating pipeline between the heat exchanger 30 and the first heat exchanger 2 exceeds a set value due to thermal expansion of the circulating water, the circulating water can automatically open the overflow valve 52 and enter the expansion water tank 51 through the second connecting pipe 54, so that the supplement of the circulating water in the circulating pipeline between the heat exchanger 30 and the first heat exchanger 2 and the balance of the corresponding pipeline pressure are realized, an open water circulating system is formed at the same time, and the production cost and the maintenance cost are reduced.
Referring to fig. 3, the second replenishing water balancing device 6 includes a radiator tank 61, the radiator tank 61 is connected to the third pipe 41 between the second circulation water pump 43 and the second heat exchanger 4, and the third pipe 41 between the heat conductor 32 and the radiator tank 61 extends below the liquid level of the radiator tank 61; in addition, a drain valve 62 of the radiator tank is connected to a low point of the radiator tank 61, so as to drain the circulating water in the circulating line between the heat conductor 32 and the second heat exchanger 4, and then, the corresponding components are repaired and maintained.
When the second circulating water pump 43 is operated, the water in the heat-dissipating water tank 61 is pumped into the circulating pipeline between the heat conductor 32 and the second heat exchanger 4, and the circulating water finally enters the heat-dissipating water tank 61 through the third pipeline 41 between the second heat exchanger 4 and the heat-dissipating water tank 61, so that the circulating water in the circulating pipeline between the heat conductor 32 and the second heat exchanger 4 is always kept within a set range; and the heat radiation water tank 61 can also be matched with the second heat exchanger 4 to release the heat of the circulating water in the corresponding circulating pipeline or compensate the required heat, so that the working efficiency is improved, and meanwhile, an open water circulating system is formed, and the production cost and the maintenance cost are reduced.
Referring to fig. 3, a cabin circulating fan 21 is further installed between the cabin 1 and the first heat exchanger 2 to pump the air at the first heat exchanger 2 into the cabin 1, so as to improve the flowing efficiency of the air in the cabin 1, and further improve the uniformity and efficiency of temperature control of each area in the cabin 1; a fan may also be provided at the second heat exchanger 4 to increase the efficiency of the energy exchange of the second heat exchanger 4 with the surroundings.
Referring to fig. 3, the electronic temperature control device further comprises a controller, and a circulating water temperature sensor 26, a cooling water temperature sensor 44, a cabin temperature sensor and an environment temperature sensor in signal connection with the controller, wherein, the circulating water temperature sensor 26 is arranged on the second pipeline 23 between the first circulating water pump 24 and the heat exchanger 30 for monitoring the outlet water temperature of the heat exchanger 30, the radiating water temperature sensor 44 is arranged on the third pipeline 41 between the second circulating water pump 43 and the radiating water tank 61 for monitoring the inlet water temperature of the heat conductor 32, the cabin temperature sensor is arranged in the cabin 1 for monitoring the temperature in the cabin 1, the environmental temperature sensor is arranged in the environment where the environmental test equipment is positioned for monitoring the environmental temperature outside the cabin 1, and the controller is electrically connected with the first circulating water pump 24, the second circulating water pump 43 and the remote control switches between the semiconductor refrigeration chips 31 and the power supply.
When the environment test equipment is used, the controller receives temperature values detected by the circulating water temperature sensor 26, the radiating water temperature sensor 44, the cabin temperature sensor and the environment temperature sensor, automatically controls and adjusts the running power of the first circulating water pump 24 and the second circulating water pump 43 according to the actually required temperature of the cabin 1, and controls and adjusts the forward energization and the reverse energization of the remote control switch or the closing of the remote control switch so as to control the starting number of the semiconductor refrigeration pieces 31, thereby achieving the effect of energy conservation.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. An electronic temperature control device is characterized by comprising a first heat exchanger (2) and an electronic refrigerating and heating group (3); the electronic refrigerating and heating unit (3) comprises a heat exchanger (30) and a semiconductor refrigerating sheet (31) arranged on one side of the heat exchanger (30), wherein the heat exchanger (30) is close to one side of the semiconductor refrigerating sheet (31);
the water inlet of the heat exchanger (30) is connected with the water outlet of the first heat exchanger (2), the water outlet of the heat exchanger (30) is connected with the water inlet of the first heat exchanger (2), and a first circulating water pump (24) is connected to a pipeline between the water inlet of the heat exchanger (30) and the water outlet of the first heat exchanger (2) and/or a pipeline between the water outlet of the heat exchanger (30) and the water inlet of the first heat exchanger (2).
2. Electronic temperature control device according to claim 1, wherein the electronic cooling and heating group (3) further comprises a heat conductor (32), the heat conductor (32) being close to the side of the semiconductor cooling plate (31) facing away from the heat exchanger (30); the electronic temperature control device further comprises a second heat exchanger (4), a water inlet of the heat conductor (32) is connected with a water outlet of the second heat exchanger (4), a water outlet of the heat conductor (32) is connected with a water inlet of the second heat exchanger (4), and a second circulating water pump (43) is connected to a pipeline between the water inlet of the heat conductor (32) and the water outlet of the second heat exchanger (4) and/or a pipeline between the water outlet of the heat conductor (32) and the water inlet of the second heat exchanger (4).
3. Electronic temperature control device according to claim 2, characterized in that a second water-replenishing balancing device (6) for replenishing and cooling the respective circulation line is provided on the conduit between the heat conductor (32) and the second heat exchanger (4).
4. Electronic temperature control device according to claim 1, characterized in that the conduit between the heat exchanger (30) and the first heat exchanger (2) is provided with a first water-replenishing balancing device (5) for replenishing water to the respective circulation conduit and balancing the conduit pressure.
5. Electronic temperature control device according to any of claims 1-4, characterized in that a cabin circulating fan (21) is arranged on one side of the first heat exchanger (2) for accelerating the air flow around the first heat exchanger (2).
6. The electronic temperature control device according to claim 2 or 3, further comprising a controller, and a circulating water temperature sensor (26) connected to the controller by signals for monitoring the temperature of the water outlet of the heat exchanger (30), a cooling water temperature sensor (44) for monitoring the temperature of the water inlet of the heat conductor (32), a cabin temperature sensor for monitoring the temperature inside the cabin (1), and an ambient temperature sensor for monitoring the ambient temperature outside the cabin (1); and the controller is electrically connected with the first circulating water pump (24) and the second circulating water pump (43).
7. The electronic temperature control device according to claim 6, wherein the heat exchanger (30) is provided with a plurality of heat exchangers (30), the semiconductor chilling plates (31) are respectively provided with one on two opposite sides of each heat exchanger (30), the heat conductor (32) is respectively provided with one on two opposite sides of two semiconductor chilling plates (31) on the same heat exchanger (30), water inlets of all the heat exchangers (30) are gathered together and connected with a water outlet of the first heat exchanger (2), water outlets of all the heat exchangers (30) are gathered together and connected with a water inlet of the first heat exchanger (2), water inlets of all the heat conductors (32) are gathered together and connected with a water outlet of the second heat exchanger (4), and water outlets of all the heat conductors (32) are gathered together and connected with a water inlet of the second heat exchanger (4).
8. Electronic temperature control device according to claim 7, characterized in that the controller is electrically connected to a remote control switch between each semiconductor chilling plate (31) and the power supply.
9. Electronic temperature control device according to claim 6, wherein the channels through which the water passes in the heat exchanger (30) and the heat conductor (32) are arranged in a serpentine shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220232583.0U CN217209914U (en) | 2022-01-27 | 2022-01-27 | Electronic temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220232583.0U CN217209914U (en) | 2022-01-27 | 2022-01-27 | Electronic temperature control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217209914U true CN217209914U (en) | 2022-08-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220232583.0U Active CN217209914U (en) | 2022-01-27 | 2022-01-27 | Electronic temperature control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217209914U (en) |
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2022
- 2022-01-27 CN CN202220232583.0U patent/CN217209914U/en active Active
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Effective date of registration: 20221018 Address after: Room 1659, Building 3, No. 3, Xijing Road, Badachu High tech Park, Shijingshan District, Beijing 100043 Patentee after: VEOUS (BEIJING) TECHNOLOGY Co.,Ltd. Address before: 063000 No. 271, Zone C, floor 1, block B, Caofeidian Comprehensive Bonded Zone Investment Service Center, Caofeidian area, China (Hebei) pilot Free Trade Zone, Tangshan City, Hebei Province Patentee before: Hebei jijingji Technology Co.,Ltd. |
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