CN212362170U - Electrothermal film and heating system, tobacco flue-curing house and bathroom heating facility using electrothermal film - Google Patents
Electrothermal film and heating system, tobacco flue-curing house and bathroom heating facility using electrothermal film Download PDFInfo
- Publication number
- CN212362170U CN212362170U CN202020897778.8U CN202020897778U CN212362170U CN 212362170 U CN212362170 U CN 212362170U CN 202020897778 U CN202020897778 U CN 202020897778U CN 212362170 U CN212362170 U CN 212362170U
- Authority
- CN
- China
- Prior art keywords
- film
- heating film
- protective layer
- power supply
- power
- 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.)
- Active
Links
Images
Landscapes
- Central Heating Systems (AREA)
- Resistance Heating (AREA)
Abstract
The utility model relates to an electric heat membrane and corresponding heating system, tobacco flue-curing house and bathroom heating facility. The electric heating film comprises a first protective layer (11), a planar heating film (12), a second protective layer (13), an electric leakage protective layer (14) and two power supply electrodes, wherein the first protective layer (11), the planar heating film (12), the second protective layer (13) and the electric leakage protective layer (14) are sequentially overlapped with one another, and the power supply electrodes (15) are respectively electrically connected with different parts of the planar heating film (12). The protective layer can be a polyurethane film (TPU), a polyvinyl chloride film (PVC), a polyimide film (PI), Polytetrafluoroethylene (PTFE), an ethylene-vinyl acetate copolymer film (EVA) and the like, and can be selected according to specific application conditions such as temperature resistance, flame retardance, waterproofness, a composite process and the like.
Description
Technical Field
The utility model belongs to electricity field, concretely relates to electric heat membrane and use its heating system, tobacco flue-curing house and bathroom heating facility.
Background art:
along with the improvement of economic level, the adjustment of energy structure, more and more shortcomings are exposed to fuel boiler central heating system, and traditional heating system and system need revolute, and the indoor environment demand that people constantly improved can be satisfied in the electrothermal film heating, is the most ideal heating mode of recognition at home and abroad at present. Electrothermal film radiant heating is a heating mode that converts electric energy into heat energy, has energy-efficient, the thermal comfort is high, can not produce the gas harmful to the environment, the family-based measurement of being convenient for, long service life is favorable to advantages such as healthy, and these advantages make this kind of heating mode obtain development and application. The existing electrothermal film is generally made up by printing and hot-pressing a specially-made conductive film and a metal current-carrying strip between two layers of insulating polyester films. The electrothermal mechanism of the electrothermal film is resistance heating, wherein the conductive film is equivalent to a resistor, so the electrothermal performance of the electrothermal film depends on the performance of the conductive film.
Some electric heating products sold in the market at present are mostly made of a conductive film with high resistance or carbon fiber as a conductor. Because the alternating current of 220V is mostly used as a power supply, the safety of the products is poor. Not only safety of the heating element using 220V is not negligible, but also 100% safety is ensured in consideration of occurrence of local high-temperature burning even if the heating element is used under a safe voltage of 36V. In addition, in consideration of the fact that the operation of a worker is not standardized, the leakage of electricity and the like are easy to occur. Therefore, the flame retardancy and the electrical safety of the electric heating film are considered when designing the electric heating film.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the problem that meets in above-mentioned electrothermal film preparation and the application, provided an use safer electrothermal film. The utility model discloses in improve the structure of electric heat membrane, electric/hot security when ensureing the electric heat membrane use, compatible renewable clean energy's high-efficient utilization simultaneously.
The utility model provides an electrothermal film, wherein, electrothermal film includes first inoxidizing coating (11), surface form heating film, second inoxidizing coating, electric leakage inoxidizing coating and two power supply electrodes, first inoxidizing coating, surface form heating film, second inoxidizing coating, electric leakage inoxidizing coating superpose in proper order each other, power supply electrode respectively with surface form heating film's different positions electricity is connected.
In a preferred implementation, the planar heating film is a carbon-based planar heating film.
In another preferred implementation manner, the planar heating film is made of conductive paper, and the power supply electrode is a metal foil applied to the surface of the planar heating film.
In another preferred implementation, the first and second protective layers are polyurethane films (TPU), polyvinyl chloride films (PVC), polyimide films (PI), polytetrafluoroethylene films (PTFE), or ethylene-vinyl acetate copolymer films (EVA).
In another preferred implementation manner, the leakage protection layer is a conductive layer, and the first protection layer and the second protection layer are insulating layers.
On the other hand, the utility model provides a heating system, which comprises one or more electrothermal films, a power supply system and a state monitoring and controlling system,
the power supply system is respectively connected with the power supply electrode of each electrothermal film to supply power to the electrothermal films;
the state monitoring control system includes: at least one of a current sensor, a voltage sensor, a power sensor, a temperature sensor, a humidity sensor,
the current sensor and the power sensor are connected in series in the power supply system and the power supply circuit of the electric heating film, the voltage sensor is connected in parallel at two ends of the electric heating film, the temperature sensor is attached to the electric heating film, and the humidity sensor is arranged in a space where the electric heating film is installed.
In another preferred implementation, the power supply system adopts municipal power, industrial power, a solar power generation device, a wind power generation device or a storage battery.
In another preferred implementation mode, the heating system further comprises a signal transmission device, a user terminal, a remote server and an alarm device, wherein the signal transmission device is used for receiving signals measured by the state monitoring control system and sending the signals to the user controller, the user terminal is used for displaying the signals and performing power supply control, the remote server is used for data storage and remote assistance, and the alarm device sends out alarm signals based on states measured by the state monitoring control system.
On the other hand, the utility model provides a tobacco flue-curing house, install in the tobacco flue-curing house the electric heat membrane or heating system, wherein the electric heat membrane sets up in the floor and/or the wall in tobacco flue-curing house.
On the other hand, the utility model provides a bathroom heating facility, bathroom heating facility include the electric heat membrane or heating system, wherein the electric heat membrane sets up in the floor and/or the wall in target room, heating system still includes the transformer, the transformer is used for converting the commercial power into low pressure direct current and supplies power to the electric heat membrane.
Technical effects
The utility model discloses set up through the electric leakage inoxidizing coating ingeniously and realized the effective protection to face form heating material electric leakage risk. The problems of electric leakage and potential safety hazard caused by the fact that more than two conductive objects are inserted into the heating film manually or accidentally in the construction or use process are avoided.
Furthermore, the utility model discloses a surface form electric heating material, its main advantage is as follows: (1) the heat exchange area is large, and the energy utilization efficiency can be improved; (2) the heating is uniform without heat spots, and the fire disaster caused by local overheating can be avoided; (3) the voltage is wide, and the electrothermal film can be normally used within the range of 5V-220V; (4) the use flexibility is great, can be applied to various heterotypic structures, satisfies the demand that can bind in the work progress.
Description of the drawings:
fig. 1 is a schematic structural view of an electrothermal film in an implementation manner of the present invention;
FIG. 2 is a simplified circuit diagram of the electrothermal film of FIG. 1 for leakage protection;
fig. 3 is a schematic structural diagram of a heating system in an implementation manner of the present invention;
FIG. 4 is a schematic view of an electric heating film laying mode in a tobacco flue-curing house;
FIG. 5 is a schematic view of the electric heating film in a bathroom;
fig. 6 is a schematic diagram of a power supply mode of the electrothermal film in the bathroom.
The specific implementation mode is as follows:
in order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
As shown in fig. 1, the electric heating film provided in this embodiment includes a first protection layer 11, a planar heating film 12, a second protection layer 13, a leakage protection layer 14, and two power supply electrodes 15.
The first protective layer 11 and the second protective layer 13 are respectively provided on the upper and lower surfaces of the planar heating film 12, and are respectively bonded to the upper and lower surfaces of the planar heating film 12, thereby protecting the planar heating film 12. The first protective layer 11 and the second protective layer 13 may be made of polyurethane (TPU), polyvinyl chloride (PVC), Polyimide (PI), Polytetrafluoroethylene (PTFE), ethylene-vinyl acetate (EVA), or other conventional materials. The material can be selected according to specific application conditions such as temperature resistance, flame retardance, waterproofness, a composite process and the like.
The planar heating film 12 is a planar electric heating film, and the planar electric heating film is preferably supplied with power by direct current low voltage. More preferably, the planar electric heating film is a planar carbon-based heating film, and the planar carbon-based heating film can be a planar electric heating material (such as an electric heating product of Changzhou two-dimensional Warm ene technologies, Inc.) mature in the market or a planar electric heating material prepared by other methods.
The power feeding electrodes 15 are electrically connected to different portions of the planar heating film 12. In general, the power feeding electrodes 15 are provided on both sides of the planar carbon-based heating film 12, and are electrically coupled to the planar heating film to feed power to the planar heating film. As shown in the figure, in this embodiment, the power supply electrode 15 is a metal diversion strip, the metal diversion strip is disposed at two sides of the planar carbon-based heating film near the edge, and the metal diversion strip leads out wires from the other two sides of the planar carbon-based heating film to connect with a power supply. The electric heating film adopts a three-phase connection mode of a live wire, a zero line and a ground wire. The live wire and the zero wire are respectively connected with electrodes on two sides of the electric heating film, and the ground wire is connected to one of the two protective layers through the electrodes or a galvanic couple.
Preferably, the electric heating film further comprises a thermocouple for measuring the temperature of the electric heating film, and the thermocouple can be arranged on the protective layer.
According to the use requirement, a plurality of groups of electric heating films can be connected in parallel or in series for use, and a plurality of groups of different electrodes are used for supplying power respectively.
The leakage prevention layer 14 is provided adjacent to the first prevention layer 11 or the second prevention layer 13. The main function is to prevent the safety problems of electric shock and the like caused by misoperation in the using process of a user, and the equivalent circuit is shown in figure 2.
The normal electrothermal film does not need a leakage protection layer due to the upper and lower insulation protection layers, and the insulation protection layer can insulate and protect the electrothermal film.
However, the inventor has found that, in the process of laying the electric heating film, not all people operate according to the standard in the process of guiding the construction of field workers. After the electric heating film is laid, workers of subsequent workers can nail in the electric heating film laying area, and particularly when the electric heating film is laid on a wall. Although the damage of single independent or a plurality of nails to the electric heat membrane is limited, can not bring what influence to its work, only local area is damaged, if a plurality of nails of nailing on electric heat membrane laying area if the people can touch, electric heat membrane during operation, room resident personnel or other people if touch two nails simultaneously, will have the risk of electrocution.
In view of the above, the inventor adds the leakage protection layer 14 on the outer side of the protection layer, and the design is ingenious in that, since the leakage protection layer is closely attached to the protection layer and the planar heating material, once the conductive insert penetrates through the planar heating material, the conductive insert inevitably penetrates through the leakage protection layer 14, the leakage protection layer 14 is made of a good conductor, and the leakage protection layer 14 shields the potential difference in the region between the inserts.
As shown in fig. 2, R1 is a leakage protection layer resistor, R2 is an electrothermal film resistor, R3 is a human body resistor, and R3> R2> R1. Because the resistance of R1 is far less than that of R2 and R3, the resistance can be regarded as a conducting wire and is equivalent to a short circuit, when voltage is applied, R2 and R3 are disconnected, and R1 is a passage to generate a large-current signal. Preferably, set up current monitoring devices in the power supply circuit to the electric heat membrane, detect the electric current to feed back in external monitoring system, carry out the outage when the current value exceedes preset threshold value and handle.
The utility model discloses the application control system who utilizes this electric heat membrane or called heating system is still provided.
As shown in fig. 3, the heating system includes an electric heating film 1, a power supply system 2 (e.g., commercial power, industrial power, solar power or wind power), and a state monitoring control system 3.
The power supply system is used for respectively supplying power to the single-chip or the plurality of electrothermal films. Because the electric heating film can be normally used in a wide voltage range (5V-220V), the power supply system 2 can be municipal power consumption (220V, 50Hz), industrial power consumption (380, 50Hz), clean energy devices (5V-380V, direct current/alternating current) such as a solar power generation device/a wind power generation device/a storage battery and the like, and can be optimized according to specific application conditions.
And the state monitoring control system 3 is used for monitoring the working state and parameters of the electrothermal film. In a preferred implementation, the status detection and control system 3 includes an electrical parameter/temperature/humidity monitoring sensor 31, a signal transmission device 32 (which may be a 4G/5G transmitter, a WiFi/RF transmitter or an Ethernet transmitter, etc.), a controller 33 and a display/operation terminal 34.
The electrical parameter/temperature/humidity monitoring sensor 31 is a general term for each sensor, and may include a voltage sensor, a current sensor, a power sensor, a current sensor, a temperature sensor, and a humidity sensor, which are respectively used for measuring voltage, current, power, current, temperature, and humidity. Current, power, voltage sensor set up in power supply circuit, and temperature, humidity transducer laminating electric heat membrane set up. The measured parameters are sent to the controller through the signal transmission device 32, so that the controller (which can be a remote server or a local controller integrated at a user terminal) can monitor the working state of the electrothermal film in real time, and when each parameter exceeds a set range, an alarm is given out, and conventional power protection and fault alarm such as voltage and current are carried out.
The user terminal 34 can adopt a computer, a mobile phone, a data center and the like, and system fault alarm information can be pushed in real time through short messages, telephones and WeChat; the monitoring information historical data is stored in the control center through a memory, and then statistics, query, export and printing can be carried out; in addition, a remote server or a universal monitoring cloud platform can be provided, and user-customized monitoring system customization such as remote measurement, remote control and remote regulation of system data is realized.
Examples of the applications
Flue-cured tobacco is the tobacco type with the largest cultivation area in China and the world, and is the main raw material of the cigarette industry. China is the first major tobacco leaf producing country in the world, about 1500 ten thousand mu of flue-cured tobacco is planted all the year round, and more than 200 ten thousand tons of flue-cured tobacco leaves are planted all the year round. Aiming at the problems of the tobacco leaf bulk production area in China, the electric energy coal-replacing tobacco curing equipment can effectively improve the conditions of low efficiency, high pollution, low tobacco quality and energy waste in the tobacco curing industry, and improve the economic income of tobacco growers and the tobacco curing quality. An air source heat pump of an electric heat source is one of the conventional methods for modifying a tobacco curing barn, but temperature and humidity differences are easily generated in different spaces inside the tobacco curing barn, so that the quality of flue-cured tobacco is reduced; the airflow temperature is limited (45-60 ℃), and the materials are difficult to be thoroughly dried in the middle and later periods of drying; various types of refrigerants are usually adopted as heat pump working media adopted in a heat pump cycle, so that the use and maintenance cost is high; the heat pump system needs 380V power electricity to maintain operation work, and the tobacco flue-curing house mostly concentrates on rural areas with insufficient electric power, needs to carry out large-scale power electricity grid transformation, and is with huge costs. Heat pump systems have not been generalized based on the above-mentioned factors.
In the embodiment, the tobacco flue-curing house is modified, and the specific application scheme is as follows:
the planar carbon-based heating film 12 is made of commercially available conductive paper. The protective layers 11 and 13 are made of high-temperature-resistant Polytetrafluoroethylene (PTFE) films, the metal current-carrying strips 15 are made of conductive copper foils and directly attached to the planar carbon-based heating film 12, the leakage protective layer 14 is made of metal aluminum foils with excellent conductivity and infrared reflection, and the metal aluminum foils and the conductive carbon paper are molded in a one-step pressing mode through a heat sealing process or other processes. Wherein the thermocouple 16 is a thin-plate type surface-mount thermocouple. The planar carbon-based heating film is laid on the wall and the floor of the tobacco flue-curing house.
The power supply system 2 adopts municipal power (220V, 50Hz) without transforming the power grid. The electrical parameter/temperature/humidity monitoring terminal 31 is formed by integrating a plurality of detection modules of temperature, humidity, current, voltage, power and the like. Current, power, voltage sensor set up in power supply circuit, and temperature, humidity transducer laminating electric heat membrane set up or set up in the tobacco flue-curing house, set up respectively overcurrent, overload, undercurrent, the unbalanced parameter threshold value of electric current in the controller to be used for detecting overcurrent, overload, undercurrent, the unbalanced of electric current. The temperature, humidity and energy consumption monitoring module monitors the temperature, humidity and energy consumption. Meanwhile, an alarm buzzer is arranged in the state monitoring control system; the signal transmission device 32 preferably adopts a 4G/5G transmission mode, and the controller 33 and the display/operation terminal 34 preferably adopt a small data center.
In a preferred implementation, temperature settings can be made for the flue-cured tobacco chamber based on temperature feedback from the thermocouples. For example, during flue-curing, the system operation and monitoring conditions are set according to the commonly used three-section type baking process of the drying process of flue-cured tobacco, and the specific parameters are as follows: the temperature in the yellowing stage needs to be kept at 38-42 ℃, and the humidity needs to be kept at 36-38%; the temperature in the roasting period is 42-54 ℃, and the humidity is 38-39%; the temperature in the tendon drying period is 55-68 ℃, and the humidity is 40-43%. The system operation condition and fault alarm information are monitored by the cloud platform, and remote measurement, remote control and remote regulation of system data are achieved. The historical data of the monitoring information can be statistically analyzed, inquired, exported and printed.
This tobacco curing equipment reforms transform simply, lays the structure schematic and as shown in the figure. The tobacco curing machine is convenient to use, has the advantages of high energy utilization rate, capability of meeting the use conditions of commercial power (220V and 50Hz), controllable power and temperature, low cost, high safety performance, environmental friendliness, no pollution and the like, and meanwhile, the tobacco curing efficiency is improved by integrating an automatic control mode.
Example 2:
in the embodiment, taking bathroom heating as an example, the specific application scheme is as follows:
the planar carbon-based heating film 12 is made of conductive paper with the surface resistance of 50 omega/sq. The protective layers 12 and 13 are preferably polyurethane (TPU) films with excellent high-temperature resistance and waterproof performance, the metal current-carrying strip 15 can be a conductive copper foil directly attached, the leakage protective layer 14 can be a metal aluminum foil with excellent conductivity and infrared reflection function, and the conductive carbon paper is subjected to one-step press molding through a heat sealing process. Wherein the thermocouple 16 is a thin-plate type surface-mount thermocouple. The electrothermal film is attached to the wall universal plate in a hot pressing mode, and the bathroom is laid in a laying mode shown in fig. 5.
The power supply system 2 is additionally provided with a transformer for reducing the municipal electricity consumption of 220V to 72V, the electric heating film is designed into a three-electrode mode, and the heating units are connected in parallel, and the connection mode is shown in figure 6. The electrical parameter/temperature and humidity monitoring terminal 31 integrates a plurality of detection modules of temperature, humidity, current, voltage, power and the like, and has the functions of detecting and protecting overcurrent, overload, undercurrent and current imbalance; monitoring temperature, humidity and energy consumption; meanwhile, an alarm buzzer and a multi-output relay are arranged in the monitoring terminal, and the output relay can be expanded; the monitoring terminal is provided with an RS485 interface and a standard Modbus RTU protocol, and a networking integrated monitoring system is carried out to realize whole-house monitoring; the gateway 32 is preferably 4G/5G, the platform cloud 33 and the display/operation terminal 34 are preferably mobile phones, and the system operation condition and fault alarm information are universal to monitor a cloud platform, so that remote measurement, remote control and remote regulation of system data are realized. The historical data of the monitoring information can be statistically analyzed, inquired, exported and printed.
This bathroom heating construction is simple, and it is convenient to use, and the programming rate is fast, and is dull, the noiselessness need not the maintenance, can use under the safe voltage condition, can not because of the user causes the electric shock danger because of the misoperation, advantages such as waterproof, environmental protection pollution-free, the while is integrated intelligent control mode, improves the comfort level and the energy utilization of heating.
Claims (10)
1. The electric heating film comprises a first protective layer (11), a planar heating film (12), a second protective layer (13), an electric leakage protective layer (14) and two power supply electrodes, wherein the first protective layer (11), the planar heating film (12), the second protective layer (13) and the electric leakage protective layer (14) are sequentially overlapped with one another, and the power supply electrodes (15) are respectively electrically connected with different parts of the planar heating film (12).
2. The electric heating film according to claim 1, wherein the planar heating film (12) is a carbon-based planar heating film.
3. The electric heating film according to claim 1, wherein the planar heating film (12) is a conductive paper, and the power supply electrode is a metal foil applied to a surface of the planar heating film (12).
4. The electric heating film according to claim 1, wherein the first and second protective layers (11, 13) are polyurethane films (TPU), polyvinyl chloride films (PVC), polyimide films (PI), polytetrafluoroethylene films (PTFE), or ethylene vinyl acetate films (EVA).
5. The electrothermal film according to claim 1, wherein the leakage protective layer is a conductive layer, and the first protective layer and the second protective layer are insulating layers.
6. A heating system, comprising one or more electrothermal films according to claim 1, a power supply system, and a state monitoring and controlling system,
the power supply system is respectively connected with the power supply electrode of each electrothermal film to supply power to the electrothermal films;
the state monitoring control system includes: at least one of a current sensor, a voltage sensor, a power sensor, a temperature sensor, a humidity sensor,
the current sensor and the power sensor are connected in series in the power supply system and the power supply circuit of the electric heating film, the voltage sensor is connected in parallel at two ends of the electric heating film, the temperature sensor is attached to the electric heating film, and the humidity sensor is arranged in a space where the electric heating film is installed.
7. The heating system according to claim 6, wherein the power supply system employs municipal power, industrial power, solar power, wind power, or batteries.
8. The heating system according to claim 6, further comprising a signal transmission device, a user terminal, a remote server and an alarm device, wherein the signal transmission device is used for receiving signals detected by the state monitoring control system and sending the signals to the user terminal, the user terminal is used for displaying the signals and performing power supply control, the remote server is used for data storage and remote assistance, and the alarm device sends out an alarm signal based on the state detected by the state monitoring control system.
9. A tobacco flue-curing house, characterized in that the tobacco flue-curing house is provided with an electric heating film as claimed in any one of claims 1 to 5 or a heating system as claimed in any one of claims 6 to 8, wherein the electric heating film is arranged in the floor and/or wall of the tobacco flue-curing house.
10. Bathroom heating installation, characterized in that the bathroom heating installation comprises the electrothermal film according to one of claims 1 to 5 or the heating system according to one of claims 6 to 8, wherein the electrothermal film is arranged in the floor and/or wall of the target room, and the heating system further comprises a transformer for converting the mains supply into low-voltage direct current for supplying power to the electrothermal film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010373395 | 2020-05-06 | ||
| CN2020103733955 | 2020-05-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212362170U true CN212362170U (en) | 2021-01-15 |
Family
ID=74154380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020897778.8U Active CN212362170U (en) | 2020-05-06 | 2020-05-25 | Electrothermal film and heating system, tobacco flue-curing house and bathroom heating facility using electrothermal film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212362170U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117250423A (en) * | 2023-09-14 | 2023-12-19 | 湖南德弘电热材料科技有限公司 | Nondestructive electric floor heating film reliability detection technology and device |
-
2020
- 2020-05-25 CN CN202020897778.8U patent/CN212362170U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117250423A (en) * | 2023-09-14 | 2023-12-19 | 湖南德弘电热材料科技有限公司 | Nondestructive electric floor heating film reliability detection technology and device |
| CN117250423B (en) * | 2023-09-14 | 2024-05-24 | 湖南德弘电热材料科技有限公司 | Nondestructive electric floor heating film reliability detection technology and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203312656U (en) | An intelligent energy-saving-type outdoor switching station | |
| CN201215632Y (en) | Temperature control instrument for dry transformer | |
| CN212362170U (en) | Electrothermal film and heating system, tobacco flue-curing house and bathroom heating facility using electrothermal film | |
| CN209805362U (en) | Novel energy-saving wind power type bus duct | |
| CN108288834A (en) | A kind of photovoltaic preassembled transformer station device | |
| CN215419735U (en) | Bus duct measurement and control device and bus duct measurement and control system | |
| CN206370730U (en) | Low-voltage distribution apparatus with fault pre-alarming and warning information wireless transmission function | |
| CN211148776U (en) | Current acquisition device and current monitoring system | |
| CN219498725U (en) | Energy storage integrated preassembled transformer substation | |
| CN210723900U (en) | Centralized ammeter case convenient to management and control just have power compensation function | |
| CN202859429U (en) | Electric heating hand warmer with ceramic electric heating substrate | |
| CN202548079U (en) | On-line remote monitoring device for dirty state of disc type insulator | |
| CN204361672U (en) | A kind of agriculture net cage system | |
| CN201430550Y (en) | Solar energy current converging equipment | |
| CN215868090U (en) | Electrical fire monitoring system based on Internet of things | |
| CN213657935U (en) | Transformer substation terminal box microenvironment on-line monitoring device | |
| CN210052994U (en) | Intelligent ring main unit | |
| CN109586404A (en) | Generator integrated synthesis control system | |
| CN210625864U (en) | Terminal box with temperature measurement function | |
| CN107608438B (en) | rental house safety electricity utilization control system and control method based on current control technology | |
| CN207488404U (en) | A kind of solar powered leakage current wireless monitoring device | |
| CN207782428U (en) | A kind of wind-light-electricity mixing energy-saving electric power system | |
| CN214205856U (en) | Environment monitoring system with multiple wireless networking modes | |
| CN108980964B (en) | Solar heating integrated system | |
| CN219697917U (en) | Novel heating film power supply structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221115 Address after: 313300 Room 202, 1st Floor, Building 8, West Phoenix, No. 8, Anji Avenue, Changshuo Street, Anji County, Huzhou City, Zhejiang Province Patentee after: Anji Yuangeng Technology Co.,Ltd. Address before: 111000 10th floor, no.13-9, Minzhu Road, building 60-5, Liuyi street, Baita District, Liaoyang City, Liaoning Province Patentee before: Weiyuan material technology (Liaoning) Co.,Ltd. |