Pressing plate position monitoring device

Abstract

The utility model discloses a pressure plate position monitoring device, which comprises a shell, a pressure spring module, a pressure signal conversion module, a voltage acquisition module, a communication module and a power supply module, the pressure spring module is embedded in the surface of the shell; when the pressing plate is put in, the pressing plate is in contact with the pressure spring module and extrudes the pressure spring module, and when the pressing plate is withdrawn, the pressing plate is not in contact with the pressure spring module; the pressure signal conversion module is used for converting the pressure borne by the pressure spring module into a voltage signal; the voltage acquisition module receives the voltage signal and judges the position state of the pressing plate according to a set voltage threshold value; the communication module uploads a judgment result to a monitoring background; the power supply module is used for supplying power to the pressure signal conversion module, the voltage acquisition module and the communication module. According to the device, the pressure signal conversion module is used for monitoring the position of the pressing plate and is not influenced by environmental factors such as strong light and a strong magnetic field, the monitoring result is accurate and reliable, modular design is adopted, all modules are relatively independent and do not interfere with one another, and installation, maintenance and replacement are convenient.

Description

Technical Field

[0001] The utility model belongs to the field of electric power equipment, and in particular relates to a pressure plate position monitoring device. Background Art

[0002] Substations require the deployment of protection and measurement and control devices to improve the stability of power supply and monitor the status of the power grid. These devices come with numerous pressure plates with varying functions. Correctly placing and removing pressure plates is a prerequisite for the normal operation of the protection and measurement and control devices. Therefore, in order to improve the convenience of substation maintenance and operation and reduce the probability of missed or incorrect placement of pressure plates, it is necessary to monitor the position of the pressure plates. Currently, existing pressure plate position monitoring mainly relies on magnetic or optical sensors. Magnetic sensors are susceptible to the high current and strong magnetic field environment within the substation, especially within the high-voltage chamber. They are more prone to failure, and if two adjacent pressure plates are close together, their corresponding magnetic sensors will affect each other, making false triggering more likely. Optical sensors are severely affected by changes in ambient light intensity, making monitoring results prone to errors. Furthermore, the panels and pressure plates within the substation vary in shape, requiring pressure plate monitoring to be easy to install and highly scalable. Utility Model Content

[0003] The purpose of the utility model is to provide a pressure plate position monitoring device that monitors through pressure signals.

[0004] In order to achieve the above objectives, the solution of the present invention is:

[0005] A pressure plate position monitoring device includes a housing, a compression spring module, a pressure signal conversion module, a voltage acquisition module, a communication module and a power supply module;

[0006] The compression spring module is embedded in the surface of the housing; when the pressure plate is inserted, the pressure plate contacts and squeezes the compression spring module; when the pressure plate is withdrawn, the pressure plate has no contact with the compression spring module;

[0007] The pressure signal conversion module converts the pressure exerted on the compression spring module into a voltage signal;

[0008] The voltage acquisition module receives the voltage signal from the pressure signal conversion module, and judges the position state of the pressure plate according to the set voltage threshold, and sends the judgment result to the communication module;

[0009] The communication module sends the judgment result of the pressure plate position status to the monitoring background;

[0010] The power supply module is used to supply power to the aforementioned pressure signal conversion module, voltage acquisition module, and communication module.

[0011] The fixed end of the above-mentioned compression spring module is fixed to the surface of the shell, and the movable end of the compression spring module is located on the moving track of the pressure plate, so that when the pressure plate is put in, the pressure plate contacts and squeezes the compression spring module, and when the pressure plate is withdrawn, the pressure plate has no contact with the compression spring module.

[0012] A groove for accommodating the pressure signal conversion module is provided in the middle of the housing, and a slide rail for installing the compression spring module is provided on the side of the housing 110 .

[0013] The communication module sends the judgment result to the monitoring background in a wired or wireless manner.

[0014] The above-mentioned pressure signal conversion module includes a force-sensitive resistor, a conventional resistor and a wire, wherein one end of the force-sensitive resistor is connected to the positive pole of the power module, the other end of the force-sensitive resistor is connected to one end of the conventional resistor, and the other end of the conventional resistor is connected to the negative pole of the power module; the force-sensitive resistor and the conventional resistor are connected to the voltage acquisition module through a wire, and the force-sensitive resistor is in contact with the compression spring module, and the compression spring module transfers the pressure it receives to the force-sensitive resistor.

[0015] The pressure signal conversion module further includes an LED lamp connected in parallel with a conventional resistor.

[0016] After adopting the above solution, compared with the prior art, the beneficial effects of the present invention are:

[0017] The pressure plate position monitoring device described in the utility model uses a pressure signal conversion module to monitor the position of the pressure plate. It is not affected by environmental factors such as strong light and strong magnetic fields. The monitoring results are accurate and reliable. In addition, it adopts a modular design. Each module is relatively independent and does not interfere with each other, which is convenient for installation, maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the pressure plate position monitoring device according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the circuit principle of the pressure signal conversion module of the embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the working principle of the pressure plate position monitoring device according to an embodiment of the present utility model;

[0021] The above drawings include the following reference numerals:

[0022] 100. Pressure signal conversion module; 101. Force-sensitive resistor; 102. Conventional resistor; 103. LED light; 104. Wire; 110. Housing; 120. Compression spring module; 201. Power supply module. DETAILED DESCRIPTION

[0023] The technical solutions and beneficial effects of the present invention will be described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, the present invention provides a pressure plate position monitoring device, including a housing 110, a compression spring module 120, a pressure signal conversion module 100, a voltage acquisition module, a communication module and a power supply module 201, which are respectively introduced below.

[0025] Cooperate Figure 3 As shown, the compression spring module 120 is embedded in the surface of the housing 110. Specifically, one end of the compression spring module 120 is fixed to the surface of the housing 110, which is defined as the fixed end of the compression spring module; the other end of the compression spring module 120 is a movable end, which is located on the moving track of the pressure plate. When the pressure plate is engaged, the pressure plate contacts and squeezes the compression spring module 120, and when the pressure plate is withdrawn, the pressure plate and the compression spring module 120 are no longer in contact.

[0026] The pressure signal conversion module 100 is in contact with the fixed end of the compression spring module 120 and is used to convert the pressure exerted on the compression spring module 120 into a voltage signal and transmit it to the voltage acquisition module;

[0027] The voltage acquisition module receives the voltage signal from the pressure signal conversion module 100, and determines the position state of the pressure plate according to the set voltage threshold, and sends the determination result to the communication module;

[0028] The communication module sends the judgment result of the pressure plate position status to the monitoring background;

[0029] The power supply module 201 is used to supply power to the pressure signal conversion module 100 , the voltage acquisition module, and the communication module.

[0030] like Figure 3 As shown, a groove for accommodating the pressure signal conversion module 100 is provided in the middle of the shell 110, and a groove slide rail for installing the compression spring module 120 is also provided on the side of the shell 110, so that the compression spring module 120 can be easily slid and installed along the groove from above; in addition, since the elastic coefficient of the spring of the compression spring module 120 changes due to the influence of the environment, pressure, etc., the use of a groove slide rail structure also facilitates the replacement of the compression spring module.

[0031] As a preferred embodiment of the present invention, the pressure signal conversion module 100 is connected to an LED light 103 , and the current pressure plate position status can be reflected according to the brightness change of the LED light 103 .

[0032] The communication module can send the judgment result to the monitoring background in a wired or wireless manner according to actual conditions.

[0033] like Figure 2 As shown, it is an implementation structure of the pressure signal conversion module in the present invention, which adopts a voltage divider circuit composed of a force-sensitive resistor 101 and a conventional resistor 102. One end of the force-sensitive resistor 101 is connected to the positive electrode of the power module 201, and the other end of the force-sensitive resistor 101 is connected to one end of the conventional resistor 102, and the other end of the conventional resistor 102 is connected to the negative electrode of the power module 201; the force-sensitive resistor 101 and the conventional resistor 102 are also connected to the voltage acquisition module through a wire 104, and the force-sensitive resistor 101 and the compression spring module 10 2 and feel the same pressure as the compression spring module 102; when the force-sensitive resistor 101 is subjected to greater pressure, its resistance is smaller. According to the voltage division principle, the voltage on the conventional resistor 102 is larger. The voltage acquisition module collects the voltage from the wire 104. When the voltage is greater than the threshold, it is determined that the pressure plate is engaged; when the force-sensitive resistor 101 is subjected to less pressure, its resistance is larger. According to the voltage division principle, the voltage on the conventional resistor 102 is smaller. The voltage acquisition module collects the voltage from the wire 104. When the voltage is less than the threshold, it is determined that the pressure plate is withdrawn. In order to intuitively reflect the position status of the pressure plate, an LED light 103 can also be added. The LED light 103 is connected in parallel with the conventional resistor 102. When the force-sensitive resistor 101 is subjected to greater pressure, the voltage on the conventional resistor 102 is smaller, and the LED light 103 becomes brighter; when the force-sensitive resistor 101 is subjected to less pressure, the voltage on the conventional resistor 102 is smaller, and the LED light 103 becomes dimmer.

[0034] The working principle of the present invention will be described below using a joint-type pressure plate as an example.

[0035] Cooperate Figure 3 As shown, the shell 110 is fixed next to the pressure plate by means of an opening, and the groove in the middle is used to install the pressure signal conversion module 100. The shell 110 is provided with a groove slide rail on the side facing the pressure plate for installing the compression spring module 120; when the pressure plate is put in, the compression spring module 120 is squeezed, the compression spring contracts, the force-sensitive resistor 101 is affected by the elastic force of the compression spring, the resistance becomes smaller, and the LED light 103 becomes brighter; when the pressure plate is withdrawn, the compression spring module 120 returns to its original state, the force-sensitive resistor 101 is only affected by the friction force, the resistance becomes larger, and the LED light 103 becomes darker. With the help of the brightness of the LED light 103, the staff can quickly distinguish the position of the pressure plate.

[0036] In summary, the present invention proposes a pressure plate monitoring device that monitors the position of the pressure plate through a pressure signal conversion module. When the pressure plate is engaged, the compression spring module is squeezed, and the pressure signal conversion module converts the pressure signal transmitted by the compression spring module into a voltage signal. The voltage acquisition module judges the voltage signal to determine the position of the pressure plate, and transmits the pressure plate position signal to the monitoring background via the communication module, thereby realizing real-time monitoring of the pressure plate position, effectively reducing the occurrence of accidents caused by mis-engaging or missing pressure plates in the substation, and generally improving the reliability of substation operation.

[0037] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A platen position monitoring device, characterized in that: It includes a housing, a compression spring module, a pressure signal conversion module, a voltage acquisition module, a communication module and a power supply module; The compression spring module is embedded in the surface of the housing; when the pressure plate is inserted, the pressure plate contacts and squeezes the compression spring module; when the pressure plate is withdrawn, the pressure plate has no contact with the compression spring module; The pressure signal conversion module converts the pressure exerted on the compression spring module into a voltage signal; The voltage acquisition module receives the voltage signal from the pressure signal conversion module, and judges the position state of the pressure plate according to the set voltage threshold, and sends the judgment result to the communication module; The communication module sends the judgment result of the position status of the pressure plate to the monitoring background; The power supply module is used to supply power to the aforementioned pressure signal conversion module, voltage acquisition module, and communication module.

2. A platen position monitoring device according to claim 1, characterized in that: The fixed end of the compression spring module is fixed to the surface of the shell, and the movable end of the compression spring module is located on the moving track of the pressure plate, so that when the pressure plate is put in, the pressure plate contacts and squeezes the compression spring module, and when the pressure plate is withdrawn, the pressure plate has no contact with the compression spring module.

3. The platen position monitoring device according to claim 1, wherein: A groove for accommodating the pressure signal conversion module is provided in the middle of the shell, and a slide rail for installing the compression spring module is provided on the side of the shell.

4. A platen position monitoring device according to claim 1, characterized in that: The communication module sends the judgment result to the monitoring background in a wired or wireless manner.

5. The platen position monitoring device according to claim 1, wherein: The pressure signal conversion module includes a force-sensitive resistor, a conventional resistor and a wire, wherein one end of the force-sensitive resistor is connected to the positive pole of the power module, the other end of the force-sensitive resistor is connected to one end of the conventional resistor, and the other end of the conventional resistor is connected to the negative pole of the power module; the force-sensitive resistor and the conventional resistor are connected to the voltage acquisition module through a wire, and the force-sensitive resistor is in contact with the compression spring module, and the compression spring module transfers the pressure it receives to the force-sensitive resistor.

6. A platen position monitoring device according to claim 5, characterized in that: The pressure signal conversion module further includes an LED lamp connected in parallel with a conventional resistor.

Images