CN215932417U - A alarm control circuit for pig house - Google Patents
A alarm control circuit for pig house Download PDFInfo
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- CN215932417U CN215932417U CN202122559616.0U CN202122559616U CN215932417U CN 215932417 U CN215932417 U CN 215932417U CN 202122559616 U CN202122559616 U CN 202122559616U CN 215932417 U CN215932417 U CN 215932417U
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Abstract
The utility model relates to an alarm control circuit for a pigsty, which comprises: the circuit breaker is characterized in that one end of the circuit breaker is connected with an incoming line, the other end of the circuit breaker is connected with an outgoing line, the incoming line is used for being connected with a power system, and the outgoing line is used for being connected with load equipment; the controller is used for acquiring the state information of the circuit breaker; the excitation tripping device is connected with the circuit breaker and the controller and used for controlling the circuit breaker according to the state information output by the excitation tripping device; and the alarm device is connected with the controller and used for sending alarm information according to the alarm control signal of the controller. The technical scheme provided by the utility model can improve the safety of the electric equipment in the pigsty.
Description
Technical Field
The present invention relates generally to the field of electrical control circuits for piggeries. More particularly, the present invention relates to an alarm control circuit for a pigsty.
Background
Along with the more and more automation and intellectuality of plant, the kind and the quantity of consumer in the plant are more and more, for example the consumer in the plant mainly includes lighting apparatus, ventilation equipment etc. before, and all be provided with in many farms and be used for the battery charging outfit of robot charging, be used for acquireing the supervisory equipment of the real-time situation in the plant etc..
However, the increase of the number of the electric devices may cause safety problems, for example, faults such as overvoltage, leakage, short circuit and the like may occur to each electric device, and these faults may cause fire accidents, which may result in immeasurable consequences for safety production. And the power supply end of each electric device is directly connected with the power grid, and once the electric device fails, the stable operation of the whole power grid can be influenced.
In conclusion, in the prior art, the electricity utilization in the pigsty has potential safety hazards.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an alarm control circuit for a pigsty, which at least solves the problem that the safety of electric equipment in the conventional pigsty is poor.
In order to solve at least the above problems, the present invention provides the following technical solutions:
an alarm control circuit for a pig house, comprising: the circuit breaker is characterized in that one end of the circuit breaker is connected with an incoming line, the other end of the circuit breaker is connected with an outgoing line, the incoming line is used for being connected with a power system, and the outgoing line is used for being connected with load equipment; the controller is arranged on the line inlet circuit and used for acquiring the state information of the circuit breaker; the excitation tripping device is connected with the circuit breaker and the controller and used for controlling the circuit breaker according to the state information; and the alarm device is connected with the controller and used for sending alarm information according to the alarm control signal of the controller.
According to an embodiment of the present invention, the controller is connected to a total current detection unit, and the total current detection unit is disposed on the outgoing line and configured to detect a total current of the outgoing line of the circuit breaker to obtain the state information.
According to another embodiment of the utility model, the controller is further connected with a residual current detection unit, and the residual current detection unit is arranged on the outgoing line and used for detecting the residual current of the outgoing line.
According to another embodiment of the present invention, the controller is further connected to a voltage detection unit, and the voltage detection unit is disposed on the incoming line and configured to detect a voltage of the incoming line.
According to another embodiment of the utility model, the emergency fan further comprises a fan line, the fan line is used for connecting an emergency fan, and a fan current detection unit is further arranged on the fan line and used for detecting current on the fan line.
According to another embodiment of the present invention, the apparatus further comprises a line temperature detecting device, which is disposed at the incoming line or the outgoing line and is used for detecting the temperature of the incoming line or the outgoing line.
According to another embodiment of the utility model, the breaker and the controller are arranged in the shell, the shell is provided with a wire inlet hole and a wire outlet hole, the wire inlet hole is used for the wire inlet line to pass through, and the wire outlet hole is used for the wire outlet line to pass through.
According to another embodiment of the present invention, a plurality of heat dissipation holes are disposed in parallel on a sidewall of the housing for dissipating heat from the incoming line and the outgoing line.
According to another embodiment of the utility model, the temperature and humidity detection device for the shell is further provided, and the temperature and humidity detection device for the shell is arranged on the inner wall of the shell and is used for detecting the temperature and humidity of the shell.
According to another embodiment of the utility model, the controller is further connected with a communication module, and the communication module is used for being in communication connection with a cloud platform so as to upload the state information to the cloud platform in real time or perform telephone alarm through the cloud platform.
According to the technical scheme provided by the utility model, the controller, the circuit breaker, the excitation tripping device and the alarm device are connected, the state information of the circuit breaker can be obtained through the controller, then the circuit breaker is controlled according to the state information of the circuit breaker, and alarm information is sent out through the alarm device. The technical scheme of the utility model can correspondingly control the circuit breaker when the abnormal state of the circuit breaker is detected, and can send out the alarm signal through the alarm device, so that compared with the prior art, the safety of the electric equipment can be improved.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 is a schematic diagram of an alarm control circuit for a pig house according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another alarm control circuit for a pigsty according to an embodiment of the utility model;
FIG. 3 is a schematic diagram of yet another alarm control circuit for a pigsty according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of yet another alarm control circuit for a pigsty according to an embodiment of the present invention;
FIG. 5 is a schematic view of a housing according to an embodiment of the utility model;
FIG. 6 is a schematic view of a housing with heat dissipation holes according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a connection between a controller and an alarm device according to an embodiment of the present invention; and
fig. 8 is a schematic diagram illustrating a connection relationship between a controller and a cloud server according to an embodiment of the present invention;
the above-mentioned fig. 1 to 8 include: the circuit breaker comprises a circuit breaker 1, an excitation tripping device 2, a controller 3, an alarm device 4, a shell 5, a cloud server 6, an incoming line 101, an outgoing line 102, a first wireless communication module 30, a second wireless communication module 42, a third wireless communication module 34, a total current detection unit 31, a current transformer 311, a current transformer 312, a current transformer 313, a residual current detection unit 32, a voltage detection unit 33, a voltage transformer 331, a voltage transformer 332, a voltage transformer 333, an alarm controller 41, an audible and visual alarm 43, a heat dissipation hole 50, an incoming line hole 51 and an outgoing line hole 52.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it should be understood by those skilled in the art that the embodiments described below are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 shows an alarm control circuit for a pigsty, which is disposed on a power supply line of electric devices in the pigsty and is used for sending out alarm information when the electric devices in the pigsty are abnormal.
As shown in fig. 1, the alarm control circuit for a pigsty provided by the present embodiment includes a circuit breaker 1, an excitation trip device 2, a controller 3, and an alarm device 4. The incoming line end of the circuit breaker 1 is used for connecting a power grid or a power system through a corresponding line and getting electricity from the power grid or the power system; the outlet end of the circuit breaker 1 is used for connecting electric equipment in the pigsty through a corresponding line and supplying power to the electric equipment in the pigsty; in this embodiment, a line connected to an incoming line end of the circuit breaker 1 is used as an incoming line 101 of the circuit breaker 1, and a line connected to an outgoing line end of the circuit breaker 1 is used as an outgoing line 102 of the circuit breaker 1, where the incoming line 101 and the outgoing line 102 both include a corresponding a-phase line, B-phase line, C-phase line, and N-phase line.
The controller 3 is connected with the excitation tripping device 2 and the alarm device 4, wherein the excitation tripping device 2 is connected with the circuit breaker 1 and is used for controlling the on-off of the circuit breaker 1. The controller 3 is connected with an electric energy detection device, which can be arranged on the incoming line 101, the outgoing line 102, or on the incoming line 101 and the outgoing line 102, and is used for detecting the operation condition of the incoming line 101 and/or the outgoing line 102 to obtain the state information of the circuit breaker 1, such as the current information, the voltage information, etc. of the action part 11 of the circuit breaker 1, and then the controller 3 judges whether the electric equipment is out of line fault (such as overvoltage, overcurrent, electric leakage, etc.) according to the state information, and sends an alarm control signal to the alarm device 4 to control the alarm device 4 to send out alarm information when the fault occurs, and simultaneously controls the circuit breaker 1 to be disconnected through the excitation tripping device 3 to stop working by using the electric equipment. The alarm device 4 of the embodiment can be an audible and visual alarm and also can be an external radio station, the audible and visual alarm can send alarm information from two aspects of hearing and vision, the reliability of alarm can be improved, and the external radio station can send a telephone or short message alarm to an alarm receiver through sending signals.
In summary, according to the technical scheme provided by the present application, the electric energy detection device connected to the controller 3 in the alarm control circuit is disposed on the incoming line 101 and/or the outgoing line 102 of the circuit breaker 1, and can detect the state information of the circuit breaker 1. And the controller 3 is connected with the excitation tripping device 2 and the alarm device 4, can control the action of the circuit breaker 1 according to the state information of the circuit breaker 1 and sends out alarm information through the alarm device 4. Due to the technical scheme, the breaker 1 can be controlled to be disconnected when abnormal conditions occur, and the alarm device 4 can send out alarm signals to remind workers of taking corresponding measures in time, so that compared with the prior art, the safety of electric equipment can be improved.
It will be appreciated by those skilled in the art that although the present application claims an alarm control circuit for a pigsty, the alarm control circuit is not only suitable for use in a pigsty, but may also be used as a control circuit for other electrical devices.
The technical solution of the present application is introduced in its entirety, and the controller 3 is explained in detail below by taking a specific implementation manner as an example.
As shown in fig. 2, in an embodiment, the controller 3 may adopt a logic control device such as a single chip, and is connected with the total current detection unit 31, and the controller 3 is connected with the excitation trip device 2 and the alarm device 4. In the process of operating the electric equipment, if faults such as short circuit, overcurrent and the like occur, the current of the power supply line of the electric equipment also changes correspondingly, so that the current of the outgoing line 102 is one of important indexes of the state information of the circuit breaker 1. The total current detection unit 31 in this embodiment is disposed on the line 102, and is configured to detect a current on the line 102. For example, when the outgoing line 12 is a three-phase line, the total current detecting unit 31 includes a current transformer 311, a current transformer 312, and a current transformer 313, which are respectively disposed on the three-phase lines of the outgoing line 102, and are used for detecting currents on the respective lines of the outgoing line 102. In the controller 3, the current of each phase line in the outgoing line 102 is obtained through three current transformers in the line current detection unit 31, and whether a fault (such as a short circuit, an open circuit, and the like) exists in the electric equipment is judged according to the current information, if the fault exists, the circuit breaker 1 is controlled to be disconnected through the excitation tripping device 2, and alarm information is sent through the alarm device 4.
As shown in fig. 3, in another embodiment, the controller 3 is further connected to a residual current detection unit 32, and a coil portion of the residual current detection unit 32 is sleeved on the incoming line 101 or the outgoing line 102. The controller 3 is connected with the residual current detection unit 32, and is used for obtaining the current of the coil part of the residual current detection unit 32, and judging whether the electric equipment has electric leakage according to the current of the coil part of the residual current detection unit 32, and the judging principle is as follows: when the electric device is normally operated, the residual current is zero, no induced current exists in the coil part of the residual current detection unit 32, and when the electric device has a leakage fault, the residual current is not zero, and an induced current exists in the coil part of the residual current detection unit 32. By utilizing the judgment principle, the controller 3 firstly acquires the current signal of the coil part of the residual current detection unit 32, judges whether the residual current of the electric equipment is zero or not according to the current signal, judges whether the electric equipment leaks electricity or not according to whether the residual current of the electric equipment is zero or not, and finally controls the circuit breaker 1 to be disconnected through the excitation tripping device 2 when the electric equipment leaks electricity and sends alarm information through the alarm device 4.
As shown in fig. 4, in a further embodiment, the circuit breaker detection device 3 further comprises a voltage detection unit 33. During the operation of the electric equipment, when the electric equipment has a fault, the power supply line of the electric equipment may be over-voltage or under-voltage. The voltage detecting unit 33 may be disposed on the outgoing line 101 or on the outgoing line 101, and in this embodiment, the voltage detecting unit 33 is disposed on the incoming line 101 and is configured to detect a voltage on the incoming line 101. For example, when the incoming line 101 is a three-phase line, the voltage detecting unit 33 includes a voltage transformer 331, a voltage transformer 332, and a voltage transformer 333, which are respectively disposed on the three-phase lines of the incoming line 101 for detecting the current on each of the three-phase lines of the incoming line 101. The controller 3 is connected with signal output ends of the voltage transformers 331, 332 and 333, and corresponding fuses are respectively arranged on the connected lines for preventing the controller 3 from being damaged due to the overlarge voltage output by each voltage transformer. In this embodiment, the controller 3 obtains voltage information of each phase line in the incoming line 101 through the voltage detection unit 33, and determines whether the electric equipment has a fault according to the voltage information, and if the electric equipment has a fault, controls the circuit breaker 1 to be disconnected through the excitation tripping device 2, and sends alarm information through the alarm device 4.
In an application scene, the alarm control circuit further comprises a fan circuit, one end of the fan circuit is used for being connected with a power system, and the other end of the fan circuit is used for being connected with a fan in the pigsty. The fan in the pigsty is a fan assembled in the pigsty, and can accelerate the air flow of the pigsty so as to ensure the air quality in the pigsty; the fan circuit is used for getting electricity from the power system and supplying power to a fan in the pigsty, and a fan current detection unit is arranged on the fan circuit. The fan current detection unit is arranged according to the type of a fan in the pigsty, if the fan is a fan of a three-phase power supply, a fan circuit is a three-phase circuit, and the fan current detection unit comprises a current transformer arranged on each phase circuit; when the fan is a fan with a two-phase power supply, the fan circuit is a two-phase circuit, and the fan current detection unit comprises a current transformer arranged on a live wire. The controller 3 is connected with the fan current detection unit and used for acquiring current information on a fan circuit, judging whether power supply of the fan is abnormal or not according to the current information, and if the power supply of the fan is abnormal, sending an alarm signal through the alarm device 4. In an application scenario, a line temperature detection device is further arranged in the alarm control circuit. The temperature detecting device in this embodiment is a thermistor, and the line temperature detecting device may be disposed at the incoming line 101, the outgoing line 102, or both the incoming line 101 and the outgoing line 102, for example, the temperature detecting device includes four temperature probes, and each temperature probe is respectively assembled on each phase line of the outgoing line 102. The controller 3 is connected with the temperature detection device 5 and used for acquiring the temperature on a power supply line of the electric equipment through the temperature detection device and judging whether the temperature is greater than a first set temperature value, if so, the circuit breaker 1 is controlled to be disconnected through the excitation tripping device 2, and an alarm signal is sent through the alarm device 4. The arrangement mode of the embodiment can prevent the temperature of the power supply line of the electric equipment from being too high, thereby improving the safety of power supply of the electric equipment.
The alarm control circuit is further described below.
As shown in fig. 5, in an embodiment, the alarm control circuit further includes a housing 5, the circuit breaker 1, the field trip device 2, the controller 3, and the line temperature detecting device are disposed inside the housing 5, and a wire inlet hole 51 and a wire outlet hole 52 are disposed at the bottom of the housing 5, where the wire inlet hole 51 is used for allowing a wire inlet 101 to pass through, the wire outlet hole 52 is used for allowing a wire outlet 102 to pass through, that is, the wire inlet 101 is disposed in the wire inlet hole 51, and the wire outlet 102 is disposed in the wire outlet hole 52. In the arrangement mode of the embodiment, the shell 5 can provide protection for the internal equipment, so that the circuit breaker 1, the excitation tripping device 2, the controller 3 and the line temperature detection device are prevented from being damaged due to collision, extrusion and other reasons, and the safety of the alarm control circuit is further improved.
In another embodiment, as shown in fig. 6, a plurality of heat dissipation holes 50 are formed in the sidewall of the housing 5. Because the circuit breaker 1, the excitation tripping device 2, the controller 3, the line temperature detection device and the like in the alarm control circuit need to be electrified during working, heat can be generated due to energy consumption and the like in the working process. In the present embodiment, the heat dissipation holes 50 formed in the side wall of the housing 5 are rectangular, and the heat dissipation holes 50 are arranged in parallel, so that heat generated by the circuit breaker 1, the excitation trip device 2, the controller 3, the line temperature detection device, and the like in the housing 5 can be dissipated to the outside of the housing 5, and the temperature in the housing 5 can be reduced, thereby preventing the influence of an excessively high temperature in the housing 5 and the performance of the excitation trip device 2, the controller 3, and the line temperature detection device.
As an example, a casing temperature and humidity detecting device is disposed on an inner wall of the casing 5, and is used for detecting the temperature and humidity of the casing 5. For example, the housing 5 has four side walls, a top and a bottom, and in order to improve the comprehensiveness and reliability of the temperature and humidity detection of the housing 5, the corresponding housing temperature and humidity detection devices are disposed on the top, the bottom and the four side walls of the housing 5 in this embodiment. The controller 3 is connected with a shell temperature and humidity detection device, the temperature and the humidity of the shell 5 are obtained through the shell temperature and humidity detection device, then whether the temperature of the shell 5 is larger than a second set temperature value and whether the humidity is larger than a set humidity value is judged, if yes, the action part 11 of the circuit breaker 1 is controlled to be disconnected through the excitation tripping device 2, and the electric equipment stops working. The reason for the temperature rise of the housing 5 may be that heat generated by devices in the housing 5 is too high, or the ambient temperature outside the housing 5 is too high, and no matter which reason causes the temperature rise of the housing 5, the power supply line of the electric device may be damaged, so the setting mode of the embodiment can improve the safety of the electric device.
The connection between the alarm device 4 and the controller 3 will be further described below.
In one embodiment, the controller 3 is connected to the first wireless communication module 30, and the alarm device 4 includes an alarm controller 41 (which may employ a control chip such as a single-chip microcomputer), a second wireless communication module 42, and an audible and visual alarm 43, wherein the alarm controller 41 is connected to the second wireless communication module 42 and the audible and visual alarm 43. The first wireless communication module 30 and the second wireless communication module 42 may adopt ZigBee wireless communication modules, or may also adopt WIFI wireless communication modules. In this embodiment, the first wireless communication module 30 is in wireless communication with the second wireless communication module 42, and the controller 3 sends out an alarm control signal through the first wireless communication module 30; when the alarm controller 41 receives the alarm control signal through the second wireless communication module 42, it controls the alarm device 4 to issue alarm information. The arrangement of the present embodiment makes the connection between the controller 3 and the alarm device 4 not restricted by the communication line, thereby improving the convenience of installation of the alarm device 4.
As shown in fig. 8, in another embodiment, the controller 3 is further connected to a third communication module 21, and the third communication module 21 may be a wireless communication module or a wired communication module. The controller 3 establishes communication connection with the cloud server 6 through the third communication module 31, and after the controller 3 acquires the state information of the circuit breaker 1 through the detection device, the state information is sent to the cloud server 6 through the third communication module 31; the cloud server 6 judges whether the electric equipment has abnormity (such as faults of short circuit, open circuit, electric leakage, overvoltage, overcurrent and the like) according to the state information of the circuit breaker 1, and if the electric equipment has abnormity, the cloud server sends the information that the electric equipment has abnormity to the controller 3 and carries out telephone alarm; when the controller 3 receives the information that the electrical equipment is abnormal, the excitation tripping device 2 controls the circuit breaker 1 to be disconnected, and the alarm device 4 sends out alarm information. In the setting mode of the embodiment, the cloud server determines whether the electric device is abnormal, so that the workload of the controller 3 can be reduced, and the working efficiency of the controller 3 can be improved.
In one application scenario, the power supply side incoming lines 101 of the controller 3 are connected. For example, the live line in the power supply end of the controller 3 is connected to one of the a-phase line, the B-phase line, and the C-phase line in the incoming line 101, and the neutral line is connected to the N-phase line in the incoming line 101. This kind of setting mode, controller 3 can directly get the electricity from inlet wire circuit 101, consequently can improve the convenience that controller 2 got the electricity.
In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used to indicate orientation or positional relationship, such as "inner", "outer", "top", "bottom", etc., are based on the orientation or positional relationship shown in the drawings of the present specification, which are used for the purpose of convenience in explaining aspects of the present invention and simplifying the description, and do not explicitly or implicitly indicate that the device or element involved must have the specific orientation, be constructed and operated in the specific orientation, and thus, the above-described orientation or positional relationship terms should not be interpreted or construed as limiting the aspects of the present invention.
In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.
While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the utility model described herein may be employed in practicing the utility model. It is intended that the following claims define the scope of the utility model and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.
Claims (10)
1. An alarm control circuit for a pig house, comprising:
the circuit breaker is characterized in that one end of the circuit breaker is connected with an incoming line, the other end of the circuit breaker is connected with an outgoing line, the incoming line is used for being connected with a power system, and the outgoing line is used for being connected with load equipment;
the controller is used for acquiring the state information of the circuit breaker;
the excitation tripping device is connected with the circuit breaker and the controller and used for controlling the circuit breaker according to the state information output by the controller;
and the alarm device is connected with the controller and used for sending alarm information according to the alarm control signal of the controller.
2. The alarm control circuit for the pigsty according to claim 1, wherein the controller is connected with a total current detection unit, and the total current detection unit is arranged on the outgoing line and used for detecting the total current of the outgoing line of the breaker so as to obtain the state information.
3. The alarm control circuit for the pigsty according to claim 2, wherein the controller is further connected with a residual current detection unit, and the residual current detection unit is arranged on the outgoing line and used for detecting the residual current of the outgoing line.
4. The alarm control circuit for the pigsty according to claim 3, wherein the controller is further connected with a voltage detection unit, and the voltage detection unit is arranged on the incoming line and used for detecting the voltage of the incoming line.
5. The alarm control circuit for the pigsty according to claim 1, further comprising a fan line, wherein the fan line is used for connecting an emergency fan, and a fan current detection unit is further arranged on the fan line and used for detecting current on the fan line.
6. The alarm control circuit for the pigsty according to claim 1, further comprising a line temperature detection device, wherein the line temperature detection device is arranged at the incoming line or the outgoing line and is used for detecting the temperature of the incoming line or the outgoing line.
7. The alarm control circuit for the pigsty according to claim 1, further comprising a housing, wherein the circuit breaker and the controller are arranged in the housing, the housing is provided with a wire inlet hole and a wire outlet hole, the wire inlet hole is used for the wire inlet line to pass through, and the wire outlet hole is used for the wire outlet line to pass through.
8. The alarm control circuit for the pigsty according to claim 7, wherein a plurality of radiating holes arranged in parallel are formed in the side wall of the shell and used for radiating heat of the incoming line and the outgoing line.
9. The alarm control circuit for the pigsty according to claim 7, further comprising a casing temperature and humidity detection device, wherein the casing temperature and humidity detection device is arranged on the inner wall of the casing and is used for detecting the temperature and humidity of the casing.
10. The alarm control circuit for the pigsty according to claim 1, wherein the controller is further connected with a communication module, and the communication module is used for being in communication connection with a cloud platform so as to upload the state information to the cloud platform in real time or perform telephone alarm through the cloud platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559616.0U CN215932417U (en) | 2021-10-22 | 2021-10-22 | A alarm control circuit for pig house |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559616.0U CN215932417U (en) | 2021-10-22 | 2021-10-22 | A alarm control circuit for pig house |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215932417U true CN215932417U (en) | 2022-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122559616.0U Active CN215932417U (en) | 2021-10-22 | 2021-10-22 | A alarm control circuit for pig house |
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| CN (1) | CN215932417U (en) |
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- 2021-10-22 CN CN202122559616.0U patent/CN215932417U/en active Active
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