CN217332596U - System and electronic device for detecting residual voltage of electrical consumer - Google Patents

Abstract

The utility model provides a system for be used for detecting residual voltage with electrical apparatus, the system includes detection device, and electronic equipment, detection device has first terminal and the second terminal that is used for detecting, electronic equipment is including the power input end that is used for receiving power signal, a power output end for inserting with electrical apparatus, and be used for inserting detection device's sense terminal, power input end has first power input circuit and second power input circuit, the sense terminal with power output end parallel connection electric connection and have with first power input circuit electric connection and with the first sense terminal of first terminal matching, with second power input circuit electric connection and with the second sense terminal of second terminal matching, and ground connection sense terminal. According to the utility model discloses, can provide one kind and can carry out measuring system to its internal circuit's voltage after with electrical apparatus disconnected power supply.

Description

System and electronic device for detecting residual voltage of electrical consumer

Technical Field

The present invention generally relates to a system and an electronic device for detecting a residual voltage of an electrical appliance.

Background

For clinical diagnosis or personal health monitoring, medical instruments (such as an electrocardiograph monitor, a breast screening device, etc.) are used to detect physiological data of a patient, so that medical staff can perform reasonable medical measures on the patient according to the detection result.

In order to be used safely, the medical instrument needs to be subjected to safety test before being sold, namely, a tester needs to test whether the residual voltage of an internal circuit of the medical instrument is smaller than a preset value within a preset time after the power supply of the medical instrument is cut off.

Currently, since the predetermined time is short (usually 0 to 2 seconds), for the purpose of accurate measurement, a tester needs to insert a test element for testing into the interior of the medical instrument while the medical instrument is in an energized state, and then power off the medical instrument to perform measurement. The internal circuit of the medical instrument may be in a high-voltage state when being powered on or within a certain time after the power supply is disconnected, and potential safety hazards may be caused when a tester touches the internal circuit. Therefore, a system capable of more safely detecting the residual voltage of the consumer is required.

Disclosure of Invention

The present invention has been made in view of the above-mentioned state of the art, and an object of the present invention is to provide a system capable of more safely measuring the residual voltage of an electric appliance.

For this reason, the utility model provides a system for detecting residual voltage with electrical apparatus, the system includes detection device and electronic equipment, detection device has first terminal and second terminal that is used for the detection, electronic equipment is including the power input end that is used for receiving power signal, is used for inserting with the power output end of electrical apparatus and be used for inserting detection device's sense terminal, power input end has first power input circuit and second power input circuit, the sense terminal with power output end parallel connection electrical connection and have with first power input circuit electrical connection and with the first sense terminal that first terminal matches, with second power input circuit electrical connection and with the second sense terminal and the ground connection sense terminal that the second terminal matches.

The utility model relates to an in the system, through the parallelly connected electrical connection of the power output end that will insert electrical apparatus with the sense terminal that is used for inserting detection device for the voltage at power output end both ends equals with the voltage at sense terminal both ends, and detection device can obtain the voltage at power output end both ends through the voltage of measuring the sense terminal both ends, thereby can obtain the residual voltage with electrical apparatus internal circuit.

Additionally, in the system of the present invention, it is optional that the detecting device is an oscilloscope, the first terminal is an oscilloscope column probe, and the second terminal is an oscilloscope clip type probe. In this case, the first terminal can be connected to the first detection terminal and/or the second detection terminal in a mating manner, and the second terminal can be connected to the ground detection terminal in a mating manner.

Additionally, in the system of the present invention, it is optional that the first detecting end and the second detecting end are hollow tubes, and the inner diameter of the hollow tubes is not smaller than the outer diameter of the oscilloscope column probe. In this case, the oscilloscope column probe can be inserted into the first detection terminal and the second detection terminal when detecting the residual voltage of the electric appliance.

Additionally, in the system of the present invention, it is optional that the first detecting end and the second detecting end are provided with a spring plate, and when the first terminal is connected to the first detecting end, the first detecting end is passed through the spring plate is clamped to the first terminal, and when the second terminal is connected to the second detecting end, the second detecting end is passed through the spring plate is clamped to the second terminal. In this case, the first terminal of the detection device can be clamped by the elastic piece, so that the first terminal is fixed to the first detection end or the second detection end at the time of measurement.

In addition, in the system according to the present invention, optionally, the ground detection terminal is a metal wire. In this case, the ground detection terminal can be mated with a clip-on probe of the oscilloscope.

Additionally, in the system of the present invention, optionally, the electronic device further includes a circuit breaker disposed on the first power input line and/or the second power input line, wherein the circuit breaker is an air switch or a fuse. In this case, the circuit breaker can break the circuit when the detection terminal or the circuit output terminal is short-circuited, thereby improving the safety of the electronic device.

Additionally, in the system of the present invention, optionally, the electronic device further includes a light emitting diode electrically connected in series with the circuit breaker. In this case, when the power input terminal receives the power signal, whether the circuit in which the circuit breaker is located is on can be determined by whether the light emitting diode emits light.

In addition, in the system according to the present invention, optionally, the electronic device further includes a control switch for controlling the conduction of the first power input line. In this case, the conduction of the first circuit input route can be controlled by the control switch, thereby controlling the switch of the electronic device.

Additionally, in the system of the present invention, optionally, the electronic device further includes a housing, the first power input line and the second power input line are disposed within the housing, and the housing is made of a fireproof material. In this case, the security of the electronic apparatus can be improved.

The utility model also provides an electronic equipment, electronic equipment including the power input end that is used for receiving power signal, be used for the access with the electric power output end of electric apparatus and be used for the access to have the detection end that is used for the detection of the detection device of the first terminal and the second terminal that detect, power input end has first power input circuit and second power input circuit, the detection end with power output end parallelly connected electrical connection and have with first power input circuit electrical connection and with first detection end that first terminal matches, with second power input circuit electrical connection and with the second detection end and the ground connection detection end that the second terminal matches.

The utility model relates to an among the electronic equipment, through the parallelly connected electrical connection of the power output end that will insert electrical apparatus with the sense terminal that is used for inserting detection device for the voltage at power output end both ends equals with the voltage at sense terminal both ends, and detection device can obtain the voltage at power output end both ends through the voltage of measuring the sense terminal both ends, thereby can obtain the residual voltage with electrical apparatus internal circuit.

Thus, a system capable of measuring the residual voltage of the electrical appliance more safely can be obtained.

Drawings

Fig. 1 is a schematic configuration diagram showing an electronic device according to an example of the present embodiment.

Fig. 2 is a schematic diagram showing a configuration of a first detection terminal according to an example of the present embodiment.

Fig. 3 is a cross-sectional view showing a first detection edge according to an example of the present embodiment.

Fig. 4 is a schematic diagram showing a circuit configuration of an electronic device according to an example of the present embodiment.

Fig. 5 is a schematic configuration diagram showing a detection device according to an example of the present embodiment.

Fig. 6 is a schematic diagram showing that the first terminal according to the example of the present embodiment is not inserted into the first detection terminal.

Fig. 7 is a schematic diagram showing the first terminal inserted into the first detection terminal according to the example of the present embodiment.

Fig. 8 is a flowchart showing a method for measuring the residual voltage by the detection system according to the present embodiment.

Fig. 9 is a flowchart showing another method of measuring the residual voltage of the detection system according to the present embodiment.

Detailed Description

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same components are denoted by the same reference numerals, and redundant description thereof is omitted. The drawings are schematic and the ratio of the dimensions of the components and the shapes of the components may be different from the actual ones.

It is noted that the terms "comprises," "comprising," and "having," and any variations thereof, in the present disclosure, such that a process, method, system, article, or apparatus that comprises or has a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include or have other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In addition, the subtitles and the like referred to in the following description of the present invention are not intended to limit the content or the scope of the present invention, and they are used only as a reminder for reading. Such a subtitle should neither be understood as a content for segmenting an article, nor should the content under the subtitle be limited to only the scope of the subtitle.

It should be noted that relative positional and relative directional terms such as "above", "upward", "below", "downward", "up-down direction", "left", "right", "left-right", "front", "rear", "front-rear direction" and the like in this document refer to a normal operation posture and should not be considered as restrictive.

The utility model discloses an embodiment relates to a detecting system, it can be through electronic equipment electrical connection detection device and with electrical apparatus to utilize detection device to measure with the residual voltage of electrical apparatus, can be medical instrument such as ECG monitor, mammary gland screening equipment etc. with electrical apparatus.

In some examples, the residual voltage may be a voltage level of the internal circuit of the electrical appliance within a predetermined time after the electrical appliance is powered off. In some examples, the voltage of the internal circuit may be a voltage between a ground line and a neutral line in the internal circuit. In some examples, the voltage of the internal circuit may be a voltage between a ground line and a fire line in the internal circuit. In some examples, the internal voltage may be a voltage between a line of fire of the internal circuit and the consumer enclosure.

In some examples, the ground of the internal circuit may be a line of the internal circuit of the electrical consumer that is electrically connected to the ground of the power supply line when the electrical consumer is powered on.

In some examples, the live wire of the internal circuit may be a wire electrically connected with the live wire of the power supply line in the internal circuit of the electrical appliance when the electrical appliance is powered on.

In some examples, the neutral line of the internal circuit may be a line of the internal circuit of the consumer that is electrically connected to the neutral line of the power supply line when the consumer is powered on.

The detection system according to the present embodiment may also be referred to as a voltage detection system, a measurement system, a voltage detection system, or the like, for example. It should be noted that the names are for showing the system for measuring the residual voltage of the electrical appliance according to the present embodiment, and should not be construed as limiting.

Additionally, the utility model provides an electronic equipment is measuring the residual voltage with electrical apparatus, and the detection device that this embodiment relates can insert electronic equipment with electrical apparatus.

Fig. 1 is a schematic diagram showing a configuration of an electronic device 1 according to an example of the present embodiment.

Fig. 2 is a schematic diagram showing the structure of the first detection terminal 131 according to the example of the present embodiment.

Fig. 3 is a cross-sectional view showing the first detection end 131 according to the example of the present embodiment.

As described above, in some examples, the detection system according to the present embodiment may include the electronic apparatus 1.

As shown in fig. 1, in some examples, the electronic device 1 may include a power input 11. The power input 11 may be electrically connected to the power supply line, in other words, the power input 11 is used for receiving a power signal. In some examples, the power supply line may be a 220V power line. In some examples, the electronic device 1 may comprise a power output 12. The power output 12 may be used to access electrical consumers. In other words, the power output 12 can be electrically connected to the consumer. In this case, the electrical appliance 1 can be used to supply power to the electrical appliance.

In some examples, the power input 11 may be a national standard outlet. In addition, in some examples, the power input 11 may also be a standard socket such as a european standard, an english standard, a american standard, or a japanese standard.

In some examples, the power output 12 may be a national standard outlet. In addition, in some examples, the power output 12 may also be a standard receptacle such as a euro standard, english standard, american standard, or japanese standard.

As shown in fig. 1, in some examples, the electronic device 1 may include a detection terminal 13. The detection terminal 13 may be used to access the detection apparatus 2 (described later). In other words, the detection terminal 13 can be electrically connected to the detection device 2 (described later).

As shown in fig. 1, the detection terminal 13 may include a first detection terminal 131, a second detection terminal 132, and a ground detection terminal 133 in some examples. In some examples, the first detection terminal 131 and the second detection terminal 132 may be respectively used to access a first terminal 21 (described later) of the detection apparatus 2. In other words, the first detection terminal 131 and the second detection terminal 132 may be electrically connected to the first terminal 21 of the detection device 2, respectively. In some examples, the ground detection terminal 133 may be electrically connected with the second terminal 22 of the detection apparatus 2 (described later).

In some examples, the first detection terminal 131 and the second detection terminal 132 may be identical.

As shown in fig. 2, in some examples, the first detection end 131 can be a hollow tube. In some examples, the second detection end 132 may also be a hollow tube. The inner diameter of the hollow tubular body may be not smaller than the outer diameter of the first terminal 21 (described later). In this case, the first terminal 21 may be inserted into the first and second detection terminals 131 and 132 when detecting the remaining voltage of the customer.

In some examples, the hollow tubular body may be made of a metallic material. Additionally, in some examples, the hollow tubular body may also be made of an insulating material. In some examples, the inner wall of the hollow tube body may be provided with an electrically conductive material.

As shown in fig. 3, in some examples, the first detection end 131 may include a spring 14. In some examples, the second detection end 132 may also include the resilient tab 14. The spring 14 may be disposed within the hollow tubular body. When the first terminal 21 is connected to the first detection end 131, in other words, the first terminal 21 is inserted into the first detection end 131, the first detection end 131 clamps the first terminal 21 by the resilient piece 14 (described later). When the first terminal 21 is connected to the second detecting terminal 132, in other words, the first terminal 21 is inserted into the second detecting terminal 132, the second detecting terminal 131 clamps the first terminal 21 by the resilient piece 14 (described later). In this case, the first terminal 21 of the detecting device 2 can be clamped by the resilient piece 14, thereby fixing the first terminal 21 to the first detecting end 131 or the second detecting end 132 at the time of measurement.

Fig. 4 is a schematic diagram showing a circuit configuration of the electronic device 1 according to the example of the present embodiment.

As shown in fig. 4, in some examples, the power input 11 may have a first power input route 111 and a second power input route 112. In some examples, the first power input route 111 may be used to electrically connect a hot wire in a power supply line. In some examples, the second power input route 112 may be used to electrically connect a neutral wire in the power supply line.

Additionally, in some examples, the first power input route 111 may also be used to electrically connect a neutral wire in the power supply line. In some examples, the second power input route 112 may also be used to electrically connect the hot wires in the power supply lines.

As shown in fig. 4, in some examples, the electronic device 1 may further include a power output terminal 12 and a detection terminal 13 in the circuit. In some examples, the power output terminal 12 and the detection terminal 13 are coupled in parallel at two ends of the power input terminal 11, in other words, one end of the circuit after the power output terminal 12 and the detection terminal 13 are connected in parallel is electrically connected with the first power input route 111, and the other end is electrically connected with the second power input route 112.

As shown above, in some examples, the detection terminal 13 may include a first detection terminal 131, a second detection terminal 132, and a ground detection terminal 133. In some examples, the first detection terminal 131 may be electrically connected to the first power input route 111 (see fig. 4). In some examples, the second detection terminal 132 may be electrically connected to the second power input route 112 (see fig. 4). The detection terminal 13 is grounded through the ground detection terminal 133.

Additionally, in some examples, the first detection terminal 131 may also be electrically connected to the second power input route 112. The second detection terminal 132 may also be electrically connected to the first power input route 111.

In some examples, the ground detection terminal 133 may be a metal wire. In this case, a second terminal 22 of the detection device 2 can be connected to measure the residual voltage of the load.

As shown in fig. 4, in some examples, a circuit breaker 15 may also be included in the electrical circuit of the electronic device 1. In some examples, the circuit breaker 15 may be disposed on the first power input route 111, in other words, the detection terminal 13 is connected in parallel with the power output terminal 12 and then connected in series with the circuit breaker 15. In some examples, the circuit breaker 15 may be an air switch or a circuit breaker. In this case, the circuit breaker 15 can break the circuit when the detection terminal 13 or the circuit output terminal 12 is short-circuited, thereby improving the safety of the electronic apparatus 1.

In addition, in some examples, the circuit breaker 15 may also be provided on the second power input route 112.

As shown in fig. 4, in some examples, a light emitting diode 16 may also be included in the circuitry of the electronic device 1. The light emitting diode 16 may be electrically connected in series with the circuit breaker 15. In other words, the detection terminal 13 and the circuit output terminal 12 are electrically connected in parallel and then electrically connected in series with the light emitting diode 16. In this case, when the power input terminal 11 receives a power signal, whether or not the circuit in which the breaker 15 is located is on can be determined by whether or not the light emitting diode 16 emits light.

In some examples, the light emitting diode 16, the detection terminal 13, and the circuit output terminal 12 may be electrically connected in parallel and then electrically connected in series to the circuit breaker 15.

As shown in fig. 4, in some examples, a control switch 17 may also be included in the circuitry of the electronic device 1. The control switch 17 may be provided on the first power input route 111. In this case, the conduction of the first circuit input route 111 can be controlled by controlling the switch 17, thereby controlling the switching of the electronic apparatus 1.

In addition, in some examples, the control switch 17 may also be provided on the second power input route 112.

In some examples, the electronic device 1 may also include a housing. The first power input route 111 and the second power input route 112 may be provided in the housing. In some examples, the housing may be made of a fire resistant material. In this case, the security of the electronic apparatus 1 can be improved.

Fig. 5 is a schematic configuration diagram showing the detection device 2 according to the example of the present embodiment. Fig. 6 is a schematic diagram showing that the first terminal 21 according to the example of the present embodiment is not inserted into the first detection end 131. Fig. 7 is a schematic diagram illustrating the first terminal 21 according to the example of the present embodiment inserted into the first detection end 131.

As described above, in some examples, the detection system according to the present embodiment may include the detection device 2.

As shown in fig. 5, in some examples, the detection apparatus 2 may include a first terminal 21 and a second terminal 22. In some examples, the first terminal 21 may be matched with the first detection terminal 131 of the detection terminals 13. In some examples, the first terminal 21 may mate with the second detection terminal 132 of the detection terminals 13. In some examples, the second terminal 22 may mate with the ground detection terminal 133.

As shown in fig. 5, in some examples, the detection apparatus 2 may be an oscilloscope. The first terminal 21 may be an oscilloscope column probe. The second terminal 22 may be an oscilloscope clip probe. In this case, when measuring the residual voltage of the consumer, the first terminal 21 can be connected to the first detection terminal 131 and/or the second detection terminal 132 in a mating manner, and the second terminal 22 can be connected to the ground detection terminal 133 in a mating manner, in other words, the first terminal 21 can be inserted into the hollow tube of the first detection terminal 131 and/or the second detection terminal 132, and furthermore, the second terminal 22 can clamp the metal wire of the ground detection terminal 133.

As shown in fig. 6 and 7, in some examples, the first terminal 21 may be inserted into the hollow tube of the first detection end 131. In this case, the inner diameter of the hollow tubular body is not smaller than the outer diameter of the first terminal 21, in other words, the inner diameter of the hollow tubular body is not smaller than the outer diameter of the oscilloscope cylinder probe.

In some examples, the first terminal 21 may also be inserted into the hollow tube of the second detection end 132. In this case, the inner diameter of the hollow tubular body is not smaller than the outer diameter of the second terminal 22, in other words, the inner diameter of the hollow tubular body is not smaller than the outer diameter of the oscilloscope cylinder probe.

As shown in fig. 7, in some examples, when the first terminal 21 is inserted into the first detection end 131, the elastic piece 14 clamps the first terminal 21, in other words, the first detection end 131 clamps the first terminal 21 through the elastic piece 14. In this case, when the first terminal 21 is inserted into the first detection end 131, the first terminal 21 can be fixed to the first detection end 131 by the resilient piece 14.

In some examples, the resilient piece 14 clamps the first terminal 21 when the first terminal 21 is inserted into the second detection end 132, in other words, the second detection end 132 clamps the first terminal 21 through the resilient piece 14. In this case, when the first terminal 21 is inserted into the second detection end 132, the first terminal 21 can be fixed to the second detection end 132 by the resilient piece 14.

Fig. 8 is a flowchart showing the measurement of the residual voltage by the detection system according to the present embodiment. Fig. 9 is a flowchart showing another measurement of the residual voltage by the detection system according to the present embodiment.

Hereinafter, the workflow of the detection system to measure the residual voltage will be described in detail with reference to fig. 8 and 9.

In some examples, as shown in fig. 8, the workflow of measuring the remnant voltage for the detection system may include: the electrical appliance is connected to the power output end 12, the power input end 11 of the electronic device 1 is connected to the power supply line, the control switch 17 is turned on (S100), the first terminal 21 of the detection device 2 is inserted into the first detection end 131 or the second detection end 132, the second terminal 22 clamps the grounding detection end 133(S200), and after the electrical appliance works for a period of time, the control switch 17 is turned off (S300).

In some examples, in step S200, when the first terminal 21 is inserted into the first detection terminal 131 and the first detection terminal 131 is electrically connected to the live line of the power supply line, the detection system can measure the voltage between the live line and the ground line in the internal circuit of the electrical appliance.

In some examples, in step S200, when the first terminal 21 is inserted into the second detecting terminal 132 and the second detecting terminal 132 is electrically connected to the neutral wire of the power supply line, the detecting system can measure the voltage between the neutral wire and the power line in the internal circuit of the appliance.

In some examples, in step S300, the detection apparatus 2 may be an oscilloscope. In this case, the remaining voltage of the electric appliance can be obtained by acquiring data measured by the oscilloscope after a certain time period after the control switch 17 is turned off.

In other examples, as shown in fig. 9, the workflow of measuring the remnant voltage for the detection system may include: the electrical appliance is connected to the power output end 12, the power input end 11 of the electronic device 1 is connected to the power supply line, the control switch 17 is turned on (S100), the metal sheet is pasted on the shell of the electrical appliance (S200), the first terminal 21 of the detection device 2 is inserted into the first detection end 131, the second terminal 22 contacts with the metal sheet (S300), and after the electrical appliance works for a period of time, the control switch 17 is turned off (S400).

In some examples, in step S200, the material of the metal sheet may be aluminum or copper. In some examples, the length of the metal thin film can be 15cm to 25cm, such as 15cm, 16cm, 17cm, 18cm, 19cm, 20cm, 21cm, 22cm, 23cm, 24cm, or 25 cm; the width of the metal film may be from 5cm to 15cm, for example 5cm, 6cm, 7cm, 8cm, 9cm, 10cm, 11cm, 12cm, 13cm, 14cm or 15 cm.

In some examples, in step S300, the first detection terminal 131 may be electrically connected to a live line of the power supply line. In this case, the detection system is able to measure the voltage between the live line of the internal circuit of the consumer and the housing of the consumer.

According to the utility model discloses, can provide one kind and measure more safely with electrical apparatus residual voltage's detecting system.

While the present invention has been described in detail in connection with the drawings and examples, it should be understood that the above description is not intended to limit the invention in any way. Those skilled in the art can modify and change the present invention as needed without departing from the true spirit and scope of the present invention, and such modifications and changes are intended to fall within the scope of the present invention.

Claims (10)

1. A system for detecting a residual voltage of an electrical consumer, characterized by:

the system comprises a detection device and an electronic device,

the detection means has a first terminal and a second terminal for detection,

the electronic equipment comprises a power input end for receiving a power signal, a power output end for accessing the electrical appliance and a detection end for accessing the detection device,

the power input having a first power input line and a second power input line,

the detection terminal is electrically connected in parallel with the power output terminal and has a first detection terminal electrically connected to the first power input line and mated to the first terminal, a second detection terminal electrically connected to the second power input line and mated to the second terminal, and a ground detection terminal.

2. The system of claim 1, wherein:

the detection device is an oscilloscope, the first terminal is an oscilloscope columnar probe, and the second terminal is an oscilloscope clamp type probe.

3. The system of claim 2, wherein:

the first detection end and the second detection end are hollow pipe bodies, and the inner diameter of each hollow pipe body is not smaller than the outer diameter of the oscilloscope columnar probe.

4. A system as claimed in claim 1 or 3, characterized in that:

the first detection end and the second detection end are provided with elastic pieces, when the first terminal is connected with the first detection end, the first detection end clamps the first terminal through the elastic pieces, and when the second terminal is connected with the second detection end, the second detection end clamps the second terminal through the elastic pieces.

5. The system of claim 1, wherein:

the grounding detection end is a metal wire.

6. The system of claim 1, wherein:

the electronic equipment further comprises a circuit breaker arranged on the first power input line and/or the second power input line, and the circuit breaker is an air switch or a fuse.

7. The system of claim 6, wherein:

the electronic device also includes a light emitting diode electrically connected in series with the circuit breaker.

8. The system of claim 1, wherein:

the electronic device further includes a control switch for controlling conduction of the first power input line.

9. The system of claim 1, wherein:

the electronic device also includes a housing, the first power input line and the second power input line being disposed within the housing, the housing being made of a fire resistant material.

10. An electronic device, characterized in that:

the electronic device comprises a power input for receiving a power signal, a power output for accessing a consumer, and a detection terminal for accessing a detection means having a first terminal and a second terminal for detecting,

the power input has a first power input line and a second power input line,

the detection terminal is electrically connected in parallel with the power output terminal and has a first detection terminal electrically connected to the first power input line and mated to the first terminal, a second detection terminal electrically connected to the second power input line and mated to the second terminal, and a ground detection terminal.

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