CN210294451U - Withstand voltage test system - Google Patents

Abstract

The utility model relates to a withstand voltage test system, including withstand voltage source, control module and at least one switch module that is used for controlling withstand voltage test and begins, each switch module sets up outside the safe distance of settlement of withstand voltage source, each switch module connection control module, and control module connects withstand voltage source, and withstand voltage source possesses the electric energy output that is used for providing the test electric energy for being tested equipment. Each switch module sets up outside the safe distance of setting for of withstand voltage source, and the staff need leave the withstand voltage source, and it just can make the required on-off state of switch module output to keep sufficient safe distance with the withstand voltage source, then just can carry out withstand voltage test, because keep having certain safe distance between staff and the withstand voltage source when withstand voltage test, consequently, just can prevent that the staff from appearing the risk of electrocuting, guarantee staff's safety, promote test safety.

Description

Withstand voltage test system

Technical Field

The utility model relates to a withstand voltage test system.

Background

As one of the electrical tests, a withstand voltage test is an electrical test performed on various electrical products, insulating materials, and the like within a certain voltage range, and generally, a voltage much higher than a normal operating voltage is used, which is highly dangerous. In the prior art, a voltage withstanding test system includes a voltage withstanding source and a control module, where an output voltage of the voltage withstanding source may not be adjustable, such as a step-up transformer with a fixed transformation ratio, and the output voltage may also be adjustable, such as a step-up transformer with an adjustable transformation ratio. The starting switch of the voltage withstanding test is connected with the control module, the control module is connected with the voltage withstanding source, the electric energy output end of the voltage withstanding source is connected with the tested equipment in an output mode, and the voltage withstanding source is controlled to output test electric energy to the tested equipment through operating the starting switch. Voltage-resistant source, control module and starting switch all set up together, starting switch sets up by voltage-resistant source promptly, and the staff need carry out high-pressure withstand voltage test at voltage-resistant source side operation starting switch, but, because voltage class and the output voltage of voltage-resistant source are higher under the general condition, the staff carries out voltage-resistant test at the position that is close apart from voltage-resistant source and can have the risk of high-pressure electric shock, and the security is lower.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a withstand voltage test system for solve the lower problem of security of staff when carrying out withstand voltage test apart from the nearer position in withstand voltage source.

In order to achieve the above object, the utility model discloses a scheme includes:

a voltage withstanding test system comprises a voltage withstanding source, a control module and at least one switch module for controlling the start of a voltage withstanding test, wherein each switch module is arranged outside a set safety distance of the voltage withstanding source and is connected with the control module, the control module is connected with the voltage withstanding source, and the voltage withstanding source is provided with an electric energy output end for providing test electric energy for tested equipment; the switch module is a manual switch or an inductive switch, the manual switch is a switch which changes the switch state through manual operation, and the inductive switch is a switch which has different switch states according to the fact that a worker is close to or far away from the inductive switch.

Each switch module is arranged outside the set safety distance of the voltage-resistant source, a worker can approach the switch module only when the worker leaves the voltage-resistant source and keeps enough safety distance with the voltage-resistant source, when the switch module is a manual switch, the worker can perform voltage-resistant test only by operating the manual switch at the manual switch, and a certain safety distance is kept between the worker and the voltage-resistant source during the voltage-resistant test, so that the risk of electric shock of the worker can be prevented, the safety of the worker is ensured, and the test safety is improved; when switch module is inductive switch, when the staff only was close to inductive switch, inductive switch's on off state just can change, because need the staff to be close to inductive switch when withstand voltage test, so, just keep having certain safe distance between staff and the withstand voltage source when withstand voltage test, consequently, just can prevent that the staff from appearing the risk of electrocuting, guarantee staff's safety, promotion test security.

Further, in order to improve the safety of the withstand voltage test, the control module is a controller, each switch module is connected with a sampling signal input end of the controller, and a control signal output end of the controller is connected with the withstand voltage source in a control mode.

Further, when the switch module is a manual switch, the control module is an electric energy input circuit connected with an electric energy input end of a voltage-withstanding source or an electric energy output circuit connected with an electric energy output end of the voltage-withstanding source, each manual switch is a normally open switch, each manual switch is connected in parallel to form a parallel unit, and the parallel units are serially connected to the electric energy input circuit or the electric energy output circuit.

Further, each manual switch is a pedal switch capable of automatically resetting. The pedal switch is convenient to operate, and the pedal switch can reset automatically, and when the staff leaves the pedal switch, the withstand voltage source stops working, and the staff can not move to the withstand voltage source at will when can also guaranteeing withstand voltage test, further promotes the security.

Further, in order to improve the operation safety of the pedal switch, an insulating sleeve is sleeved outside the pedal switch.

Further, each manual switch is a push switch. Button switch can automatic re-setting, and when the staff loosened button switch, withstand voltage source stop work can also guarantee that the staff can not walk to withstand voltage source at will when withstand voltage test, further promotes the security.

Further, in order to be able to know timely when other living beings approach the voltage-resistant source so as to take relevant measures, the voltage-resistant test system further comprises an infrared sensing module or a proximity sensing module for outputting an alarm signal when other living beings approach the voltage-resistant source, and the infrared sensing module or the proximity sensing module is connected with a sampling signal input end of the controller.

Furthermore, the withstand voltage test system also comprises an alarm or a wireless communication module, wherein the control signal output end of the controller is connected with the alarm, and the communication end of the controller is connected with the wireless communication module. The alarm can send out alarm signals in time when abnormal conditions occur, such as other organisms approach the pressure-resistant source; the wireless communication module can send the abnormal conditions to a far end in real time.

Drawings

Fig. 1 is a specific schematic structural diagram of the pressure resistance testing system provided by the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiment provides a voltage withstanding test system, which includes a voltage withstanding source, a control module and at least one switching module, where the voltage withstanding source is a device for providing test electric energy (e.g., voltage) to a device under test, such as a voltage device for providing a fixed voltage, or a voltage boosting device for providing a variable voltage, and the voltage withstanding source belongs to an existing device, and will not be described in detail here. The switch modules are used for controlling and starting a voltage withstanding test, the specific number of the switch modules is not limited, and the switch modules are set according to actual needs, however, no matter how many switch modules are arranged, each switch module is arranged outside a set safety distance of a voltage withstanding source (namely, the distance between each switch module and the voltage withstanding source is greater than the set safety distance), and the set safety distance is determined according to actual conditions, for example, the set safety distance is determined according to the voltage grade of the voltage withstanding source, and the higher the voltage grade is, the larger the safety distance is. The dashed circle in fig. 1 indicates a safety distance of the withstand voltage source, and an area other than the dashed circle area is a safety area. The relationship of the voltage-tolerant source, the control module and the switch module is as follows: each switch module is connected with the control module, the control module is connected with the voltage-resistant source, and the voltage-resistant source is provided with an electric energy output end used for providing test electric energy for the tested equipment.

As shown in fig. 1, the control module is a controller, i.e., a control chip, such as a single chip or a PLC, and the withstand voltage test is implemented by an internal software program. Then, each switch module is connected with a sampling signal input end of the controller, and a control signal output end of the controller is connected with the voltage-resistant source in a control mode. The switch modules and the controller can be connected in a wired mode through signal lines or in a wireless mode through a wireless receiving and transmitting device. Of course, the control strategy in the controller, that is, controlling the operation of the voltage withstanding source according to the on-off state of the switch module is the existing control mode, and the voltage withstanding test system provided in this embodiment is only to directly take the existing control strategy for use.

In this embodiment, the switch module is a manual switch, and the manual switch is further a pedal switch, specifically a pedal switch capable of automatically resetting, and the pedal switch is usually arranged on the ground, so as to be convenient for stepping, and further convenient for operation, and then the pedal switch is a pedal switch, as shown in fig. 1. In order to further improve the safety, the pedal switch is sleeved with an insulating sleeve. Of course, as another embodiment, the manual switch may also be a button switch, that is, the manual switch can automatically reset when the button switch is released, and it can be ensured that a worker cannot move to the withstand voltage source at will during the withstand voltage test. Of course, the manual switch may not be a switch capable of automatic reset such as a push switch, but may be a switch device similar to the manual reset of the knife switch. In short, the manual switch is a switch that changes the switch state through manual operation, and can be operated by hand, foot, or other parts of the body, that is, the manual switch with two different states can meet the requirement.

In addition, the withstand voltage test system also comprises an infrared sensing module or an approaching sensing module which is used for outputting an alarm signal when other organisms approach the withstand voltage source, and the infrared sensing module or the approaching sensing module is connected with the sampling signal input end of the controller and can timely know to take related measures when other organisms approach the withstand voltage source. Moreover, the withstand voltage test system also comprises an alarm or a wireless communication module, the control signal output end of the controller is connected with the alarm, the communication end of the controller is connected with the wireless communication module, the alarm can send out alarm signals in time when abnormal conditions occur, such as when other organisms are close to the withstand voltage source, and the wireless communication module can send the abnormal conditions to a far end in real time.

Then, when a voltage withstanding test is needed, the tested equipment is connected with a voltage withstanding source, and then the worker leaves the voltage withstanding source, walks to any pedal switch which is far away from the voltage withstanding source by a sufficient safety distance, and can perform the voltage withstanding test by stepping on the pedal switch. Because the staff keeps certain safe distance with withstand voltage source when withstand voltage test, consequently, just can prevent that the staff from appearing the risk of electrocuteeing, guarantee staff's safety, promote the security. In addition, when the staff leaves the pedal switch, the pressure-resistant source reduces the pressure, directly stops working or sends out an alarm signal through an alarm so as to ensure the safety of the staff.

In the above embodiments, the control module is a controller, and as another embodiment, the control module has a specific circuit structure. Since the voltage-withstanding source is generally connected to an external power supply, such as an ac power grid, the power input end of the voltage-withstanding source is connected to a power input line, the power input line is connected to the ac power grid, the power output end of the voltage-withstanding source is connected to a power output line, the power output line is connected to the device under test, and then, the control module is the power input line or the power output line of the voltage-withstanding source. Furthermore, each manual switch is a pedal switch capable of automatically resetting, an insulating sleeve is sleeved outside the pedal switch to form an insulating switch pad, and a worker operates the pedal switch on the insulating switch pad to improve safety. Then, the test electric energy of the withstand voltage source can be output to the device under test by stepping on any one of the pedal switches. Of course, the control module may have other circuit configurations having the same function, besides the above circuit configuration.

In the above embodiment, the switch module is a manual switch, and as another implementation, the switch module may also be an inductive switch, such as an infrared inductive switch, and when the worker approaches the infrared inductive switch, that is, when the distance between the worker and the infrared inductive switch is less than or equal to the inductive distance of the infrared inductive switch, the infrared inductive switch senses, outputs a switch state, such as a conducting state, and controls the operation of the voltage-resistant source; when the staff kept away from this infrared inductive switch, when the distance between staff and the infrared inductive switch was greater than infrared inductive switch's inductive distance promptly, infrared inductive switch did not respond to, exports another on-off state, for example off-state, control withstand voltage source stop operation, wherein, infrared inductive switch's inductive distance is usually shorter. Therefore, the inductive switch is a switch capable of outputting different switch states according to the approach or the distance of a worker. The control process of the withstand voltage test according to the inductive switch is the same as the control process of the withstand voltage test according to the manual switch in principle, and the detailed description is omitted here. Of course, the switch module can also be divided into two parts, one part is a manual switch, and the other part is an inductive switch.

The specific embodiments are given above, but the present invention is not limited to the described embodiments. The utility model discloses a basic thinking lies in each switch module's mode of setting to do not confine to each concrete means of realizing that the above-mentioned gave. Variations, modifications, substitutions and alterations of the embodiments may be made without departing from the principles and spirit of the invention, which is still within the scope of the invention.

Claims (8)

1. A voltage withstanding test system is characterized by comprising a voltage withstanding source, a control module and at least one switch module for controlling the start of a voltage withstanding test, wherein each switch module is arranged outside a set safety distance of the voltage withstanding source and is connected with the control module, the control module is connected with the voltage withstanding source, and the voltage withstanding source is provided with an electric energy output end for providing test electric energy for tested equipment; the switch module is a manual switch or an inductive switch, the manual switch is a switch which changes the switch state through manual operation, and the inductive switch is a switch which has different switch states according to the fact that a worker is close to or far away from the inductive switch.

2. The voltage withstand test system according to claim 1, wherein the control module is a controller, each switch module is connected to a sampling signal input terminal of the controller, and a control signal output terminal of the controller is connected to the voltage withstand source in a control manner.

3. The voltage withstand test system according to claim 1, wherein when the switch module is a manual switch, the control module is a power input line connected to a power input terminal of a voltage withstand source or a power output line connected to a power output terminal of the voltage withstand source, each manual switch is a normally open switch, and the manual switches are connected in parallel to form a parallel unit, and the parallel unit is connected in series to the power input line or the power output line.

4. The withstand voltage testing system according to claim 3, wherein each manual switch is a pedal switch capable of automatic reset.

5. The dielectric withstand voltage testing system of claim 4, wherein the pedal switch is externally sleeved with an insulating sleeve.

6. The withstand voltage testing system according to claim 1 or 2, wherein each manual switch is a push button switch.

7. The pressure resistance test system according to claim 2, further comprising an infrared sensing module or a proximity sensing module for outputting an alarm signal when other living beings approach the pressure resistance source, wherein the infrared sensing module or the proximity sensing module is connected to the sampling signal input end of the controller.

8. The pressure resistance testing system according to claim 7, further comprising an alarm or a wireless communication module, wherein the control signal output end of the controller is connected to the alarm, and the communication end of the controller is connected to the wireless communication module.

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