Electricity testing device and anti-electric shock alarm device

Abstract

The utility model provides an electricity testing device and an anti-electric shock alarm device. The electricity testing device comprises a parallel polar plate capacitor, an amplification circuit, a detection circuit, an analog-to-digital conversion circuit and a controller which are connected in sequence, the parallel polar plate capacitor is used for sensing the electric field intensity in the preset space range to obtain a sensing electric signal; the amplifying circuit is used for amplifying the induction electric signal to obtain an amplified electric signal; the detection circuit is used for demodulating a to-be-detected signal with a preset amplitude from the amplified electric signal; the analog-to-digital conversion circuit is used for converting the signal to be detected into a digital signal; and the controller is used for calculating a measured value of the electric field intensity according to the digital signal. The device obtains the electric field intensity of the space through the parallel polar plate capacitor, so that the device does not need to be contacted with an electricity-tested object, the operation process is simplified, and the detection difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a live-line detector and an anti-electric shock alarm device. Background Art

[0002] In the existing live-line work, in order to prevent electric shock, it is required to use a live-line detector to confirm whether it is live before corresponding operations can be carried out. The detection principle of the existing live-line detector is as follows: When conducting live-line detection, first touch the front end of the live-line detector to the metal component of the object to be detected. As long as the object is live, the charge will be transmitted to the gold foil of the live-line detector. Because the amount of electricity on the gold foil is the same as the charge, so-called like charges repel each other. At this time, the gold foil pieces will open, and the opening size depends on the amount of charge. The more charge is carried, the larger the opening angle will be. When the object itself is not live, then unlike charges attract each other, and the gold foil pieces will not separate.

[0003] However, the existing live-line detector is not convenient for the operator to carry during live-line work, and the existing live-line detector needs to contact the object to be detected, resulting in cumbersome operation and great detection difficulty. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a live-line detector and an anti-electric shock alarm device to alleviate the technical problems that the existing live-line detector needs to contact the object to be detected, resulting in cumbersome operation and great detection difficulty, simplify the operation process and reduce the detection difficulty.

[0005] In a first aspect, an embodiment of the utility model provides a live-line detector, including: a parallel-plate capacitor, an amplifier circuit, a demodulation circuit, an analog-to-digital conversion circuit and a controller connected in sequence; the parallel-plate capacitor is used to sense the electric field strength in a preset space range to obtain an induced electric signal; the amplifier circuit is used to amplify the induced electric signal to obtain an amplified electric signal; the demodulation circuit is used to demodulate a signal to be detected with a preset amplitude from the amplified electric signal; the analog-to-digital conversion circuit is used to convert the signal to be detected into a digital signal; the controller is used to calculate a measured value of the electric field strength according to the digital signal.

[0006] In a preferred embodiment, the live-line detector further includes: a signal display component connected to the controller; the signal display component is used to display the measured value.

[0007] In a second aspect, an embodiment of the utility model further provides an anti-electric shock alarm device, including: the live-line detector; the anti-electric shock alarm device further includes: an alarm component connected to the live-line detector; the controller is further used to generate an alarm signal when the measured value is greater than a preset threshold; the alarm component is used to respond to the alarm signal and perform alarm processing.

[0008] In a preferred embodiment, the above-mentioned alarm component includes: a buzzer, a vibrator, and a warning light.

[0009] In a preferred embodiment, the above-mentioned electric shock prevention alarm device further includes: a power supply connected to the above-mentioned electric testing device; the power supply is used to supply power to the above-mentioned electric testing device.

[0010] In a preferred embodiment, the type of the above-mentioned power supply is a lithium battery.

[0011] In a preferred embodiment, the above-mentioned electric shock prevention alarm device further includes: a housing; the housing is used to accommodate the above-mentioned electric testing device, the above-mentioned alarm component, and the above-mentioned lithium battery.

[0012] In a preferred embodiment, a wearable fixing device is provided on the above-mentioned housing; the wearable fixing device is used to be fixed on a preset part of the human body.

[0013] In a preferred embodiment, the type of the above-mentioned wearable fixing device is: a wristband, a footband, a collar, or an adjustable fixing band.

[0014] In a preferred embodiment, the above-mentioned parallel plate capacitor, the above-mentioned amplification circuit, the above-mentioned detection circuit, the above-mentioned analog-to-digital conversion circuit, the above-mentioned controller, and the above-mentioned alarm component are arranged on a printed circuit board.

[0015] The embodiment of the present utility model has the following beneficial technical effects:

[0016] The embodiment of the present utility model provides an electric testing device and an electric shock prevention alarm device, including: a parallel plate capacitor, an amplification circuit, a detection circuit, an analog-to-digital conversion circuit, and a controller connected in sequence; the above-mentioned parallel plate capacitor is used to sense the electric field strength in a preset space range to obtain an induced electric signal; the above-mentioned amplification circuit is used to amplify the above-mentioned induced electric signal to obtain an amplified electric signal; the above-mentioned detection circuit is used to demodulate a signal to be detected with a preset amplitude from the above-mentioned amplified electric signal; the above-mentioned analog-to-digital conversion circuit is used to convert the above-mentioned signal to be detected into a digital signal; the above-mentioned controller is used to calculate the measured value of the above-mentioned electric field strength according to the above-mentioned digital signal. This device obtains the electric field strength of the space where it is located through a parallel plate capacitor, so it does not need to contact the object to be tested, simplifies the operation process and reduces the detection difficulty. Description of the Drawings

[0017] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 A schematic structural diagram of an existing electric voltage detector provided by an embodiment of the present invention;

[0019] Figure 2 A schematic structural diagram of an existing electric voltage detector provided by an embodiment of the present invention;

[0020] Figure 3 A schematic structural diagram of an anti-electric shock alarm device provided by an embodiment of the present invention;

[0021] Figure 4 A schematic structural diagram of another anti-electric shock alarm device provided by an embodiment of the present invention.

[0022] Reference numerals: 10 - the front end of the voltage detector; 11 - gold foil; 21 - parallel plate capacitor; 22 - amplifier circuit; 23 - detection circuit; 24 - analog-to-digital conversion circuit; 25 - controller; 31 - electric voltage detection device; 32 - alarm component; 33 - power supply; 34 - lithium battery; 35 - housing; 36 - wearable fixing device; 41 - buzzer; 42 - vibrator; 43 - LED. Specific embodiments

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0024] In live working, in order to prevent electric shock, it is required to use a voltage detector to confirm whether it is energized before corresponding operations can be carried out. The detection principle of the existing voltage detector is as follows: When conducting an electric voltage inspection, first touch the metal component of the object to be inspected with the front end 10 of the voltage detector. As long as the object is energized, the charge will be transmitted to the gold foil 11 of the voltage detector. Because the amount of electricity on the gold foil 11 is the same as the charge, so-called like charges repel each other. At this time, the gold foil 11 will open, and the opening size depends on the amount of charge. The more charge carried, the larger the opening angle will be. When the object itself is not energized, then unlike charges attract each other, and the gold foil will not separate.

[0025] For the sake of easy understanding, Figure 1 FIG. 1 is a schematic structural diagram of an existing electric testing device provided by an embodiment of the present utility model.

[0026] Based on this, an embodiment of the present utility model provides an electric testing device and an anti-electric shock alarm device. This technology can simplify the operation process and reduce the detection difficulty. For the sake of easy understanding of the embodiment of the present utility model, the electric testing device will be introduced in detail first.

[0027] Embodiment 1

[0028] In this embodiment, Figure 2 FIG. 2 is a schematic structural diagram of an electric testing device provided by an embodiment of the present utility model.

[0029] As can be seen from Figure 2 FIG. 2, the electric testing device includes: a parallel plate capacitor 21, an amplifier circuit 22, a detection circuit 23, an analog-to-digital conversion circuit 24, and a controller 25 that are connected in sequence; the parallel plate capacitor 21 is used to sense the electric field strength in a preset space range to obtain an induced electric signal; the amplifier circuit 22 is used to amplify the induced electric signal to obtain an amplified electric signal; the detection circuit 23 is used to demodulate a signal to be detected with a preset amplitude from the amplified electric signal; the analog-to-digital conversion circuit 24 is used to convert the signal to be detected into a digital signal; the controller 25 is used to calculate a measured value of the electric field strength according to the digital signal.

[0030] In one of the implementation manners, the electric testing device further includes: a signal display component connected to the controller 25; the signal display component is used to display the measured value.

[0031] In actual operation, the signal display component can be a display screen or a speaker.

[0032] Here, the user can understand the measured value of the electric field strength in the preset space range through the signal display component, thereby preventing the user from getting an electric shock.

[0033] Furthermore, the controller 25 can also be communicatively connected to a specified terminal device, so as to transmit the measured value to the specified terminal device, so that the user using the specified terminal device can understand the measured value of the electric field strength in the preset space range, thereby preventing the user from getting an electric shock.

[0034] An embodiment of the present utility model provides an electric inspection device, including: a parallel plate capacitor, an amplifier circuit, a detection circuit, an analog-to-digital conversion circuit, and a controller that are connected in sequence; the above-mentioned parallel plate capacitor is used to sense the electric field strength in a preset space range to obtain an induced electric signal; the above-mentioned amplifier circuit is used to amplify the above-mentioned induced electric signal to obtain an amplified electric signal; the above-mentioned detection circuit is used to demodulate a signal to be detected with a preset amplitude from the above-mentioned amplified electric signal; the above-mentioned analog-to-digital conversion circuit is used to convert the above-mentioned signal to be detected into a digital signal; the above-mentioned controller is used to calculate a measured value of the above-mentioned electric field strength according to the above-mentioned digital signal. Since this device obtains the electric field strength of the space it is in through a parallel plate capacitor, it does not need to contact the object to be inspected, simplifying the operation process and reducing the detection difficulty.

[0035] Embodiment 2

[0036] Based on the above embodiment, Figure 3 It is a schematic structural diagram of an anti-electric shock alarm device provided by an embodiment of the present utility model.

[0037] As can be seen from Figure 3 the anti-electric shock alarm device includes: the electric inspection device 31 of the above embodiment; it further includes: an alarm component 32 connected to the above-mentioned electric inspection device 31; the above-mentioned controller 25 is further used to generate an alarm signal when the above-mentioned measured value is greater than a preset threshold; the above-mentioned alarm component 32 is used to respond to the above-mentioned alarm signal and perform alarm processing.

[0038] For the convenience of understanding, Figure 4 It is a schematic structural diagram of another anti-electric shock alarm device provided by an embodiment of the present utility model.

[0039] As can be seen from Figure 4 the above-mentioned alarm component 32 includes: a buzzer 41, a vibrator 42, and a warning light.

[0040] Here, the above-mentioned warning light is an LED 43.

[0041] In actual operation, the above-mentioned anti-electric shock alarm device further includes: a power supply 33 connected to the above-mentioned electric inspection device 31; the above-mentioned power supply 33 is used to supply power to the above-mentioned electric inspection device 31.

[0042] Furthermore, the type of the above-mentioned power supply 33 is a lithium battery 34.

[0043] Furthermore, the above-mentioned anti-electric shock alarm device further includes: a housing 35; the above-mentioned housing 35 is used to house the above-mentioned electric inspection device 31, the above-mentioned alarm component 32, and the above-mentioned lithium battery 34.

[0044] Furthermore, a wearable fixing device 36 is provided on the above-mentioned housing 35; the above-mentioned wearable fixing device 36 is used to be fixed on a preset part of the human body.

[0045] Further, the type of the wearable fixing device 36 is: a wristband, a footband, a collar or an adjustable fixing band.

[0046] Further, the parallel plate capacitor 21, the amplifier circuit 22, the detection circuit 23, the analog-to-digital conversion circuit 24, the controller 25 and the alarm component 32 are arranged on a printed circuit board.

[0047] An embodiment of the present invention provides an anti-electric shock alarm device, including: the electric inspection device of the above embodiment; further including: an alarm component connected to the electric inspection device; the controller is further configured to generate an alarm signal when the measured value is greater than a preset threshold; the alarm component is configured to respond to the alarm signal and perform an alarm process. The anti-electric shock alarm device calculates whether the measured value is greater than the preset threshold through the controller, and controls the alarm component to perform an alarm operation when it is greater than the preset threshold, further simplifying the operation process and reducing the detection difficulty.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An electrical testing device, characterized in that: include: A parallel plate capacitor, an amplifier circuit, a detection circuit, an analog-to-digital conversion circuit and a controller connected in sequence; The parallel plate capacitor is used to sense the electric field strength in a preset spatial range to obtain an induced electric signal; The amplifier circuit is used to amplify the induced electrical signal to obtain an amplified electrical signal; The detection circuit is used to demodulate the to-be-detected signal of a preset amplitude from the amplified electrical signal; The analog-to-digital conversion circuit is used to convert the signal to be detected into a digital signal; The controller is used to calculate the measured value of the electric field strength according to the digital signal.

2. The electrical testing device according to claim 1, characterized in that: The electrical testing device further comprises: a signal display component connected to the controller; The signal display component is used to display the measurement value.

3. An anti-electric shock alarm device, characterized in that: The electric shock detection device comprises the electric shock detection device as claimed in any one of claims 1 to 2; the electric shock prevention alarm device further comprises: an alarm component connected to the electric shock detection device; The controller is also used to generate an alarm signal when the measured value is greater than a preset threshold; The alarm component is used to respond to the alarm signal and perform alarm processing.

4. The anti-electric shock alarm device according to claim 3, characterized in that: The alarm component includes: a buzzer, a vibrator and a warning light.

5. The anti-electric shock alarm device according to claim 3, characterized in that: The anti-electric shock alarm device also includes: a power supply connected to the electrical detection device; The power supply is used to supply power to the electrical testing device.

6. The anti-electric shock alarm device according to claim 5, characterized in that: The type of power source is a lithium battery.

7. The anti-electric shock alarm device according to claim 6, characterized in that: The anti-electric shock alarm device also includes: a shell; the shell is used to load the electrical detection device, the alarm component and the lithium battery.

8. The anti-electric shock alarm device according to claim 7, characterized in that: A wearable fixing device is provided on the shell; the wearable fixing device is used to be fixed to a preset position of the human body.

9. The anti-electric shock alarm device according to claim 8, characterized in that: The wearable fixing device is of the type of a wristband, a footband, a collar or a fixing belt with adjustable length.

10. The anti-electric shock alarm device according to claim 3, characterized in that: The parallel plate capacitor, the amplifying circuit, the detecting circuit, the analog-to-digital conversion circuit, the controller and the alarm component are arranged on a printed circuit board.

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