CN210511885U - Energy-saving heating stove - Google Patents
Energy-saving heating stove Download PDFInfo
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- CN210511885U CN210511885U CN201921078228.7U CN201921078228U CN210511885U CN 210511885 U CN210511885 U CN 210511885U CN 201921078228 U CN201921078228 U CN 201921078228U CN 210511885 U CN210511885 U CN 210511885U
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Abstract
The utility model belongs to the technical field of heating equipment, a energy-conserving heating stove is proposed, including the furnace body, still include water storage pipeline, set up in the furnace body, still include the heating terminal, set up outside the furnace body for heating district heating, heating terminal and water storage pipeline intercommunication still include the heating member, set up in the furnace body, establish the heating tube in the heating rod outside including heating rod and cover, heating tube and water storage pipeline intercommunication still include holding water box, set up outside the furnace body, holding water box and water storage pipeline intercommunication, holding water box has the heat preservation function. Through above-mentioned technical scheme, solved among the prior art electric heating stove long, can not the problem of rational utilization of electric energy at power consumption peak hour operating time.
Description
Technical Field
The utility model belongs to the technical field of heating equipment, a energy-conserving heating stove is related to.
Background
An electric heating furnace is a heating device which can convert electric energy into heat energy to directly release heat or can meet the heating requirement by circulating a heat medium in a heating pipeline, and belongs to the field of electric water heating boilers. In the heating season, the electric heating furnace needs to consume large electric energy. In order to reasonably utilize electric energy, power supply companies set different charging standards in the peak period and the valley period of the power utilization, so as to encourage people to stagger the peak period. The current electric heating furnace has long working time in the peak period of electricity utilization and cannot reasonably utilize electric energy.
SUMMERY OF THE UTILITY MODEL
The utility model provides a, solved among the prior art electric heating stove long, the problem of can not the rational utilization of electric energy at power consumption peak period operating time.
The technical scheme of the utility model is realized like this: comprises that
A furnace body,
a water storage pipeline arranged in the furnace body,
a heating terminal arranged outside the furnace body and used for heating a heating area, the heating terminal is communicated with the water storage pipeline,
a heating body arranged in the furnace body and comprising a heating rod and a heating pipeline sleeved outside the heating rod, wherein the heating pipeline is communicated with the water storage pipeline,
and the heat preservation water tank is arranged outside the furnace body and is communicated with the water storage pipeline.
Further, the water storage pipeline includes terminal import, terminal export, water tank import and water tank export, the water inlet at heating terminal with terminal export intercommunication, the delivery port at heating terminal with terminal import intercommunication, holding water tank's water inlet with water tank export intercommunication, holding water tank's delivery port with water tank import intercommunication.
Further, a water pump is arranged on the water storage pipeline, the water storage pipeline comprises a pipeline I, a pipeline II, a pipeline III, a pipeline IV, a pipeline V, a three-way valve I and a three-way valve II,
one end of the first pipeline is communicated with an inlet of the water tank, the other end of the first pipeline is communicated with one end of the heating pipeline, the other end of the heating pipeline is communicated with one end of the fifth pipeline, the other end of the fifth pipeline is communicated with a water inlet of the first three-way valve,
one end of the second pipeline is communicated with the water outlet B of the first three-way valve, the other end of the second pipeline is communicated with the terminal outlet,
one end of the third pipeline is communicated with the water outlet A of the first three-way valve, the other end of the third pipeline is communicated with the water inlet of the second three-way valve,
one end of the fourth pipeline is communicated with the water outlet B of the second three-way valve, the other end of the fourth pipeline is communicated with the outlet of the water tank,
and the water inlet of the second three-way valve is also communicated with the terminal inlet.
Furthermore, a water flow switch is arranged between the first pipeline and the first three-way valve, and the water flow switch and the heating rod are connected with a controller.
Further, the temperature control device also comprises a temperature sensor of the heat preservation water tank, wherein the temperature sensor of the heat preservation water tank is used for detecting the temperature of the heat preservation water tank.
And the system further comprises a return water temperature sensor, wherein the return water temperature sensor is used for detecting the temperature of the heating terminal.
The utility model discloses a theory of operation and beneficial effect do:
1. the utility model discloses heating stove during operation, heating rod with the water heating in the heating pipeline, heating pipeline and water storage pipeline intercommunication, and then with the water heating in the water storage pipeline, hot water and heating terminal intercommunication in the water storage pipeline realize the heating of heating district. At power consumption trough period (8 a.m.. 8 a.m.), hot water in the water storage pipeline is outside the demand that satisfies heating terminal, can also be to the water heating in the holding water box, at power consumption crest period (8 a.m.. 8 a.m.), the hot water of storing is heating terminal heat supply in the holding water box, thus, the operating time of heating rod can be reduced at power consumption crest period, be favorable to reducing the power consumption of crest period, not only be favorable to the rational utilization of electric energy, and be favorable to practicing thrift the charges of electricity spending.
The utility model discloses well heat preservation water tank's design, store the heat, for heating terminal heat supply at power consumption crest period, avoided the power consumption peak at power consumption trough period, not only be favorable to the rational utilization of electric energy, be favorable to practicing thrift the charges of electricity spending moreover.
2. In the utility model, hot water in the water storage pipeline enters the heating terminal from the terminal outlet, and cold water in the heating terminal flows into the water storage pipeline from the terminal inlet to form a circulating water path, so that water circulation between the water storage pipeline and the heating terminal is realized, and quick heat supply to the heating terminal is facilitated; similarly, hot water in the water storage pipeline enters the heat preservation water tank from the water tank outlet, and cold water in the heat preservation water tank flows into the water storage pipeline from the water tank inlet to form a circulating water path, so that water circulation between the water storage pipeline and the heat preservation water tank is realized, and the heat preservation water tank is favorably and quickly supplied with heat.
3. The utility model discloses at the power consumption period of difference, work respectively at following operating mode:
the heating body directly supplies heat for a heating terminal: in the electric trough period, if the water temperature of the heating terminal is lower than a set value (for example, the set value is 30 ℃), switching states of the first three-way valve and the second three-way valve are switched, so that the water inlet AB of the first three-way valve is communicated with the water outlet B, the water inlet AB of the second three-way valve is communicated with the water outlet A, then the water pump is started, and finally the heating body is started. At this time, the water circulation path between the heating body and the heating terminal is: the heating rod heats water in the first pipeline and the fifth pipeline, hot water in the first pipeline and the fifth pipeline flows into the second pipeline through the three-way valve, hot water in the second pipeline enters the heating terminal from the terminal outlet, and cold water in the heating terminal sequentially enters the first pipeline from the terminal inlet and the three-way valve, so that water circulation between the heating body and the heating terminal is realized.
Heat storage of the heat preservation water tank: in the electricity utilization trough period, if the temperature of the heating terminal is higher than a set value (for example, the set value is 60 ℃), the heating body stops supplying heat to the heating terminal, and at the moment, the heating body can supply heat to the heat preservation water tank, so that the heat preservation of the heat preservation water tank is realized. The realization method comprises the following steps: and if the temperature of the heat-preservation water tank is lower than a set value (for example, the set value is 80 ℃), switching the on-off states of the first three-way valve and the second three-way valve to enable the water inlet AB of the first three-way valve to be communicated with the water outlet A and the water inlet AB of the second three-way valve to be communicated with the water outlet B, starting the water pump, and finally starting the heating body. At this time, the water circulation path before the heating body and the heat preservation water tank is as follows: the heating rod heats water in the first pipeline and the fifth pipeline, hot water in the first pipeline and the fifth pipeline flows into the third pipeline through the first three-way valve, hot water in the third pipeline enters the fourth pipeline through the second three-way valve, hot water in the fourth pipeline enters the heat-preservation water tank from the water tank outlet, and cold water in the heat-preservation water tank enters the first pipeline from the water tank inlet, so that water circulation between the heating body and the heat-preservation water tank is realized.
When the temperature of the holding water tank is higher than a set value (for example, the set value is 85 ℃), the heating of the heating body is stopped.
The heat preservation water tank is used for heating at a heating terminal: in the electricity consumption peak period, if the temperature of the heat preservation water tank is higher than a set value (for example, the set value is 35 ℃), the heating terminal is heated through the heat preservation water tank, and if the temperature of the heat preservation water tank is lower than 35 ℃ (for example, the set value is 35 ℃), in order to ensure the heating requirement of the heating terminal, the heating body directly heats the heating terminal. The method for realizing the heating of the heating terminal by the heat preservation water tank comprises the following steps: and if the temperature of the heating terminal is lower than 30 ℃, switching states of the first three-way valve and the second three-way valve are switched, so that the water inlet AB of the first three-way valve is communicated with the water outlet B, the water inlet AB of the second three-way valve is communicated with the water outlet B, and then the water pump is started (the heating body is not started). The water circulation path between the heat preservation water tank and the heating terminal is as follows: hot water in the heat-preservation water tank enters the first pipeline from the water tank inlet, the hot water in the first pipeline sequentially enters the second pipeline through the fifth pipeline and the first three-way valve, hot water in the second pipeline enters the heating terminal from the terminal outlet, cold water in the heating terminal sequentially enters the fourth pipeline through the terminal inlet and the second three-way valve, and cold water in the fourth pipeline enters the heat-preservation water tank from the water tank outlet, so that water circulation between the heat-preservation water tank and the heating terminal is realized.
4. The utility model discloses well rivers switch is used for detecting the flow in the water storage pipeline, can all be connected rivers switch and heating rod with external control ware when using, and when the lack of water in the water storage pipeline, rivers switch sends the lack of water signal to the controller, and controller control heating rod outage avoids heating rod "dry combustion method", causes the internal device of furnace to damage.
5. The utility model discloses heat preservation water tank temperature sensor is used for detecting the temperature of holding water tank, is favorable to confirming suitable holding water tank temperature setting value, provides the basis for the control of three-way valve one, three-way valve two, water pump and heater, can satisfy the heating demand at heating terminal, can make full use of the heat of storing in the holding water tank again; in a similar way, the return water temperature sensor is used for detecting the temperature of the heating terminal, so that a proper heating terminal temperature set value is determined, a basis is provided for controlling the first three-way valve, the second three-way valve, the water pump and the heater, the heating requirement of the heating terminal can be met, and the heat stored in the heat-preservation water tank can be fully utilized.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of the heating of a heating terminal by a heating body in the present invention;
FIG. 2 is a heat storage schematic diagram of the heat-insulating water tank of the present invention;
FIG. 3 is a schematic diagram of the heat preservation water tank of the utility model for heating terminal heating;
in the figure: 1-furnace body, 2-water storage pipeline, 21-pipeline I, 22-pipeline II, 23-pipeline III, 24-pipeline IV, 25-terminal inlet, 26-terminal outlet, 27-water tank inlet, 28-water tank outlet, 29-pipeline V, 3-heating terminal, 4-heating body, 41-heating rod, 42-heating pipeline, 5-heat preservation water tank, 6-three-way valve I, 7-three-way valve II, 8-water flow switch and 9-water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, includes a furnace body 1,
a water storage pipeline 2 arranged in the furnace body 1,
a heating terminal 3 arranged outside the furnace body 1 and used for heating a heating area, the heating terminal 3 is communicated with the water storage pipeline 2,
the heating body 4 is arranged in the furnace body 1 and comprises a heating rod 41 and a heating pipeline 42 sleeved outside the heating rod 41, the heating pipeline 42 is communicated with the water storage pipeline 2,
and the heat-preservation water tank 5 is arranged outside the furnace body 1, and the heat-preservation water tank 5 is communicated with the water storage pipeline 2.
The utility model discloses heating stove during operation, heating rod 41 with the water heating in the heating pipeline 42, heating pipeline 42 and 2 intercommunications of standpipe, and then with the water heating in 2 standpipe, hot water and the 3 intercommunications in heating terminal in the 2 standpipe realize the heating of heating district. 8 o ' clock ~ 8 o ' clock in morning evening at power consumption trough period, hot water in the water storage pipeline 2 is outside satisfying heating terminal 3's demand, can also be to the water heating in the holding water box 5, 8 o ' clock ~ 8 o ' clock in morning at power consumption crest period, the hot water of storing is heating terminal 3 heat supplies in the holding water box 5, and like this, can reduce the operating time of heating rod 41 at power consumption crest period, be favorable to reducing the power consumption of crest period, not only be favorable to the rational utilization of electric energy, and be favorable to practicing thrift the charges of electricity spending.
The utility model discloses well heat preservation water tank 5's design, store the heat, for heating terminal 3 heats at power consumption crest period, avoided the power consumption peak at power consumption trough period, not only be favorable to the rational utilization of electric energy, be favorable to practicing thrift the charges of electricity spending moreover.
Further, the water storage pipeline 2 comprises a terminal inlet 25, a terminal outlet 26, a water tank inlet 27 and a water tank outlet 28, the water inlet of the heating terminal 3 is communicated with the terminal outlet 26, the water outlet of the heating terminal 3 is communicated with the terminal inlet 25, the water inlet of the heat preservation water tank 5 is communicated with the water tank outlet 28, and the water outlet of the heat preservation water tank 5 is communicated with the water tank inlet 27.
In the utility model, hot water in the water storage pipeline 2 enters the heating terminal 3 from the terminal outlet 26, and cold water in the heating terminal 3 flows into the water storage pipeline 2 from the terminal inlet 25 to form a circulating water path, so that water circulation between the water storage pipeline 2 and the heating terminal 3 is realized, and quick heat supply to the heating terminal 3 is facilitated; similarly, hot water in the water storage pipeline 2 enters the heat preservation water tank 5 from the water tank outlet 28, and cold water in the heat preservation water tank 5 flows into the water storage pipeline 2 from the water tank inlet 27, so that a circulation water path is formed, water circulation between the water storage pipeline 2 and the heat preservation water tank 5 is realized, and quick heat supply to the heat preservation water tank 5 is facilitated.
Further, a water pump 9 is arranged on the water storage pipeline 2, the water storage pipeline 2 comprises a first pipeline 21, a second pipeline 22, a third pipeline 23, a fourth pipeline 24, a fifth pipeline 29, a first three-way valve 6 and a second three-way valve 7,
one end of the first pipeline 21 is communicated with the water tank inlet 27, the other end of the first pipeline 21 is communicated with one end of the heating pipeline 42, the other end of the heating pipeline 42 is communicated with one end of the fifth pipeline 29, the other end of the fifth pipeline 29 is communicated with the water inlet of the first three-way valve 6,
one end of the second pipeline 22 is communicated with the water outlet B of the first three-way valve 6, the other end of the second pipeline 22 is communicated with the terminal outlet 26,
one end of the pipeline III 23 is communicated with the water outlet A of the three-way valve I6, the other end of the pipeline III 23 is communicated with the water inlet of the three-way valve II 7,
one end of the fourth pipeline 24 is communicated with the water outlet B of the second three-way valve 7, the other end of the fourth pipeline 24 is communicated with the water tank outlet 28,
the water inlet of the second three-way valve 7 is also communicated with the terminal inlet 25.
The utility model discloses at the power consumption period of difference, work respectively at following operating mode:
the heating body 4 directly supplies heat for the heating terminal 3: in the electric power utilization trough period, if the water temperature of the heating terminal 3 is lower than a set value, for example, the set value is 30 ℃, the switching states of the first three-way valve 6 and the second three-way valve 7 are switched, so that the water inlet AB of the first three-way valve 6 is communicated with the water outlet B, the water inlet AB of the second three-way valve 7 is communicated with the water outlet A, then the water pump 9 is started, and finally the heating body 4 is started. At this time, the water circulation path between the heating body 4 and the heating terminal 3 is: the heating rod 41 heats the water in the first pipeline 21 and the fifth pipeline 29, the hot water in the first pipeline 21 and the fifth pipeline 29 flows into the second pipeline 22 through the first three-way valve 6, the hot water in the second pipeline 22 enters the heating terminal 3 from the terminal outlet 26, and the cold water in the heating terminal 3 sequentially enters the first pipeline 21 from the terminal inlet 25 and the second three-way valve 7, so that the water circulation between the heating body 4 and the heating terminal 3 is realized.
The heat preservation water tank 5 stores heat: in the electricity utilization trough period, if the temperature of the heating terminal 3 is higher than a set value (for example, the set value is 60 ℃), the heating body 4 stops supplying heat to the heating terminal 3, and at this time, the heating body 4 can supply heat to the heat preservation water tank 5, so that heat storage of the heat preservation water tank 5 is realized. The realization method comprises the following steps: if the temperature of the heat-preservation water tank 5 is lower than a set value (for example, the set value is 80 ℃), switching states of the first three-way valve 6 and the second three-way valve 7 are switched, so that the water inlet AB of the first three-way valve 6 is communicated with the water outlet A, the water inlet AB of the second three-way valve 7 is communicated with the water outlet B, the water pump 9 is started, and finally the heating body 4 is started. At this time, the water circulation path before the heating body 4 and the heat preservation water tank 5 is as follows: the heating rod 41 heats the water in the first pipeline 21 and the fifth pipeline 29, the hot water in the first pipeline 21 and the fifth pipeline 29 flows into the third pipeline 23 through the first three-way valve 6, the hot water in the third pipeline 23 enters the fourth pipeline 24 through the second three-way valve 7, the hot water in the fourth pipeline 24 enters the heat-preservation water tank 5 from the water tank outlet 28, and the cold water in the heat-preservation water tank 5 enters the first pipeline 21 from the water tank inlet 27, so that the water circulation between the heating body 4 and the heat-preservation water tank 5 is realized.
When the temperature of the holding water tank 5 is higher than a set value (for example, the set value is 85 ℃), the heating of the heating body 4 is stopped.
The heat preservation water tank 5 supplies heat for the heating terminal 3: in the power consumption peak period, if the temperature of the heat-insulating water tank 5 is higher than a set value (for example, the set value is 35 ℃), the heating terminal 3 is heated by the heat-insulating water tank 5, and if the temperature of the heat-insulating water tank 5 is lower than the set value (for example, the set value is 35 ℃), the heating body 4 directly heats the heating terminal 3 to ensure the heating demand of the heating terminal 3. The method for realizing the heating of the heating terminal 3 by the heat preservation water tank 5 comprises the following steps: and if the temperature of the heating terminal 3 is lower than 30 ℃, switching states of the first three-way valve 6 and the second three-way valve 7 are switched, so that the water inlet AB of the first three-way valve 6 is communicated with the water outlet B, the water inlet AB of the second three-way valve 7 is communicated with the water outlet B, and the water pump 9 is started again to not start the heating body 4. The water circulation path between the holding water tank 5 and the heating terminal 3 at this time is: hot water in the heat preservation water tank 5 enters the first pipeline 21 from the water tank inlet 27, the hot water in the first pipeline 21 sequentially enters the second pipeline 22 through the fifth pipeline 29 and the first three-way valve 6, hot water in the second pipeline 22 enters the heating terminal 3 from the terminal outlet 26, cold water in the heating terminal 3 sequentially enters the fourth pipeline 24 through the terminal inlet 25 and the second three-way valve 7, and cold water in the fourth pipeline 24 enters the heat preservation water tank 5 from the water tank outlet 28, so that water circulation between the heat preservation water tank 5 and the heating terminal 3 is realized.
Further, a water flow switch 8 is arranged between the first pipeline 21 and the first three-way valve 6.
The utility model discloses well water flow switch 8 is used for detecting the flow in the water storage pipeline 2, can all be connected water flow switch 8 and heating rod 41 with external control ware during the use, and when water shortage in the water storage pipeline 2, water flow switch 8 will lack the water signal and send to the controller, and controller control heating rod 41 cuts off the power supply, avoids heating rod 41 "dry combustion method", causes device damage in furnace body 1.
Further, still include 5 temperature sensor of holding water box, 5 temperature sensor of holding water box are used for detecting the temperature of holding water box 5.
Further, the heating system also comprises a return water temperature sensor, wherein the return water temperature sensor is used for detecting the temperature of the heating terminal 3.
The utility model discloses well holding water box 5 temperature sensor is used for detecting the temperature of holding water box 5, is favorable to confirming suitable holding water box 5 temperature setting value, provides the basis for the control of three-way valve 6, three-way valve two 7, water pump 9 and heater, can satisfy the heating demand of heating terminal 3, can make full use of the heat of storing in holding water box 5 again; in a similar way, the backwater temperature sensor is used for detecting the temperature of the heating terminal 3, so that the temperature set value of the heating terminal 3 is determined properly, a basis is provided for controlling the first three-way valve 6, the second three-way valve 7, the water pump 9 and the heater, the heating requirement of the heating terminal 3 can be met, and the heat stored in the heat preservation water tank 5 can be fully utilized.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An energy-conserving heating stove, its characterized in that: comprises that
A furnace body (1),
a water storage pipeline (2) arranged in the furnace body (1),
the heating terminal (3) is arranged outside the furnace body (1) and used for heating a heating area, the heating terminal (3) is communicated with the water storage pipeline (2),
the heating body (4) is arranged in the furnace body (1) and comprises a heating rod (41) and a heating pipeline (42) sleeved outside the heating rod (41), the heating pipeline (42) is communicated with the water storage pipeline (2),
and the heat preservation water tank (5) is arranged outside the furnace body (1), and the heat preservation water tank (5) is communicated with the water storage pipeline (2).
2. An energy saving heating stove according to claim 1, characterized in that: water storage pipeline (2) include terminal import (25), terminal export (26), water tank import (27) and water tank export (28), the water inlet of heating terminal (3) with terminal export (26) intercommunication, the delivery port of heating terminal (3) with terminal import (25) intercommunication, the water inlet of holding water box (5) with water tank export (28) intercommunication, the delivery port of holding water box (5) with water tank import (27) intercommunication.
3. An energy saving heating stove according to claim 2, characterized in that: the water storage pipeline (2) is provided with a water pump (9), the water storage pipeline (2) comprises a pipeline I (21), a pipeline II (22), a pipeline III (23), a pipeline IV (24), a pipeline V (29), a three-way valve I (6) and a three-way valve II (7),
one end of the first pipeline (21) is communicated with a water tank inlet (27), the other end of the first pipeline (21) is communicated with one end of the heating pipeline (42), the other end of the heating pipeline (42) is communicated with one end of the fifth pipeline (29), the other end of the fifth pipeline (29) is communicated with a water inlet of the first three-way valve (6),
one end of the second pipeline (22) is communicated with the water outlet B of the first three-way valve (6), the other end of the second pipeline (22) is communicated with the terminal outlet (26),
one end of the pipeline III (23) is communicated with the water outlet A of the three-way valve I (6), the other end of the pipeline III (23) is communicated with the water inlet of the three-way valve II (7),
one end of the fourth pipeline (24) is communicated with the water outlet B of the second three-way valve (7), the other end of the fourth pipeline (24) is communicated with the water tank outlet (28),
and the water inlet of the second three-way valve (7) is also communicated with the terminal inlet (25).
4. An energy saving heating stove according to claim 3, characterized in that: and a water flow switch (8) is arranged on the pipeline five (29).
5. An energy saving heating stove according to claim 1, characterized in that: still include holding water box (5) temperature sensor, holding water box (5) temperature sensor is used for detecting the temperature of holding water box (5).
6. An energy saving heating stove according to claim 1, characterized in that: the heating system is characterized by further comprising a return water temperature sensor, wherein the return water temperature sensor is used for detecting the temperature of the heating terminal (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921078228.7U CN210511885U (en) | 2019-07-11 | 2019-07-11 | Energy-saving heating stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921078228.7U CN210511885U (en) | 2019-07-11 | 2019-07-11 | Energy-saving heating stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210511885U true CN210511885U (en) | 2020-05-12 |
Family
ID=70582289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921078228.7U Expired - Fee Related CN210511885U (en) | 2019-07-11 | 2019-07-11 | Energy-saving heating stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210511885U (en) |
-
2019
- 2019-07-11 CN CN201921078228.7U patent/CN210511885U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 Termination date: 20210711 |
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| CF01 | Termination of patent right due to non-payment of annual fee |