Electric energy quality detection device and method

Abstract

The invention relates to the technical field of electrical variable measurement, in particular to an electric energy quality detection device and method.The electric energy quality detection device comprises a mounting frame, two sliding blocks, an electric energy quality detection device body, two baffles with holes and two locking assemblies; the locking assembly comprises a rotating rod, a locking block and a knob; during mounting, the mounting rack is embedded and mounted on the cabinet body by using a plurality of screws; the two sliding blocks are inserted in a sliding mode along the mounting frame, and the electric energy quality detection device body is driven to be embedded into the cabinet body until the two locking blocks penetrate through the locking holes of the two baffles with holes; the two rotary knobs are rotated by 90 degrees respectively, so that the two locking blocks are rotated by 90 degrees; when the electric energy quality detection device needs to be disassembled, the two rotary knobs are rotated by 90 degrees respectively, so that the two locking blocks are changed from the horizontal state to the vertical state and are just aligned with the locking holes of the two baffles with the holes, and the electric energy quality detection device body can be taken out in a sliding mode. Therefore, the problem that an existing electric energy quality detection device is troublesome to mount and dismount is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring electric variables, and in particular to a power quality detection device and method. Background Art

[0002] Power quality refers to the quality of the electrical energy in the power system. Ideally, the electrical energy should be a perfectly symmetrical sine wave. Some factors can cause the waveform to deviate from the symmetrical sine wave, which results in power quality problems. On the one hand, we study what factors can cause power quality problems, on the other hand, we study what problems these factors can cause, and finally, we study how to eliminate these factors so that the electrical energy can be as close to a sine wave as possible.

[0003] The power quality detection devices in the prior art are all provided with two mounting plates at the front end, the mounting plates are provided with mounting holes, and then the whole is mounted on the cabinet body by using a plurality of screws.

[0004] However, the above-mentioned method uses a plurality of screws for installation, which makes installation and disassembly more troublesome. Summary of the invention

[0005] The object of the present invention is to provide a power quality detection device and method, aiming to solve the problem that the existing power quality detection device is troublesome to install and disassemble.

[0006] To achieve the above-mentioned object, in a first aspect, the present invention provides a power quality detection device, comprising a mounting frame, two sliders, a power quality detection device body, two baffles with holes and two locking assemblies; The two sliders are respectively connected to the mounting frame in a sliding manner and are respectively located on the inner side of the mounting frame; the power quality detection device body is respectively connected to the two sliders in a fixed manner and is located between the two sliders; the two baffles with holes are respectively connected to the mounting frame and are respectively located on the inner side of the mounting frame; the two locking assemblies are respectively arranged on the two sliders; the locking assembly includes a rotating rod, a locking block and a knob; the rotating rod is rotationally connected to the slider and passes through the slider; the locking block is fixedly connected to the rotating rod and is located at the rear end of the rotating rod; the knob is fixedly connected to the rotating rod and is located at the front end of the rotating rod.

[0007] Wherein, the locking assembly also includes a right-angle positioning block and two positioning rods; the right-angle positioning block is fixedly connected to the rotating rod and is penetrated by the rotating rod; the two positioning rods are respectively fixedly connected to the slider and are respectively located on the front side of the slider.

[0008] Among them, the mounting frame includes two guide rails, two fixed plates and a connecting frame; the two guide rails are respectively slidably connected to the two sliders, and the two sliders are respectively located on the inner sides of the two guide rails; the two fixed plates are respectively fixedly connected to the two guide rails and are respectively located on the front sides of the two guide rails; the connecting frame is respectively fixedly connected to the two guide rails and is located on the rear sides of the two guide rails.

[0009] Wherein, the guide rail includes a slide and multiple rollers; the slide is fixedly connected to the connection frame and is located at the front side of the connection frame; the multiple rollers are respectively rotatably connected to the slide and are symmetrically arranged on the inner side of the slide.

[0010] Wherein, the locking assembly further comprises a locking mechanism; the locking mechanism is arranged on the front side of the sliding block.

[0011] Wherein, the locking mechanism includes a mounting plate, a mounting cylinder, a piston, a sliding rod, an engaging block and a first spring; the mounting plate is fixedly connected to the slider and is located at the front side of the slider; the mounting cylinder is fixedly connected to the mounting plate and is located at the bottom of the mounting plate; the piston is slidably connected to the mounting cylinder and is located inside the mounting cylinder; the sliding rod is fixedly connected to the piston and is slidably connected to the mounting cylinder and passes through the mounting cylinder; the engaging block is fixedly connected to the sliding rod and is slidably connected to the slider and is located at the front side of the slider; the first spring is arranged inside the mounting cylinder.

[0012] Wherein, the locking mechanism further comprises a push plate; the push plate is fixedly connected to the engagement block and is located at one side of the engagement block.

[0013] In a second aspect, the present invention further provides a method for detecting power quality, the specific steps of which include: The mounting frame is embedded and installed on the cabinet using multiple screws; Slide the two sliders along the mounting frame and insert them into the cabinet, driving the power quality detection device body to be embedded in the cabinet until the two lock blocks pass through the lock holes of the two perforated baffles; Turn the two knobs 90 degrees respectively so that both locking blocks rotate 90 degrees; Connect the wires to the power quality detection device to perform power quality detection.

[0014] The present invention provides a power quality detection device and method, wherein the mounting frame can be embedded and installed on a cabinet body by screws, and the mounting frame is used for slidably installing two sliders, and the two sliders are respectively located on the left and right sides of the power quality detection device body, so that the power quality detection device body can be slidably installed on the inner side of the mounting frame, and thus embedded and installed in the cabinet body together with the mounting frame, and the perforated baffle plate has a vertical lock hole, and the lock block is adapted to the lock hole, and the knob is used to facilitate the rotation of the rotating rod, and the rotation of the rotating rod can drive the lock block to rotate; during installation, the mounting frame is embedded and installed on the cabinet body by using multiple screws; the two sliders are slidably inserted along the mounting frame to drive the power quality detection device body to be embedded in the cabinet body until the two lock blocks pass through the two The lock hole of the perforated baffle plate; rotate the two knobs 90 degrees respectively, so that the two lock blocks are rotated 90 degrees; the lock block changes from the original vertical to the horizontal, just staggered with the lock hole of the perforated baffle plate, so that the lock block is blocked by the perforated baffle plate, and the power quality detection device body is installed between the mounting frames, and the power quality detection device body is also embedded and installed in the cabinet; when in use, connect the power quality detection device body with a wire to perform power quality detection; when disassembly is required, rotate the two knobs 90 degrees respectively, so that the two lock blocks change from horizontal to vertical, just aligned with the lock holes of the two perforated baffle plates, and the power quality detection device body can be slid out; thereby solving the problem that the existing power quality detection device is relatively troublesome to install and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0016] Figure 1 It is a schematic structural diagram of the first embodiment of the present invention.

[0017] Figure 2 It is a front view of the first embodiment of the present invention.

[0018] Figure 3 is a cross-sectional view of the first embodiment of the present invention.

[0019] Figure 4 is another cross-sectional view of the first embodiment of the present invention.

[0020] Figure 5 It is a schematic structural diagram of the second embodiment of the present invention.

[0021] Figure 6 yes Figure 5 A partial enlargement of detail A.

[0022] Figure 7 is a cross-sectional view of a locking mechanism according to a second embodiment of the present invention.

[0023] Figure 8 is a cross-sectional view of a third embodiment of the present invention.

[0024] Fig. 9 4 is a flow chart of the fourth embodiment of the present invention.

[0025] 101-mounting frame, 102-slider, 103-power quality detection device body, 104-perforated baffle, 105-locking assembly, 106-rotating rod, 107-locking block, 108-knob, 109-right angle positioning block, 110-positioning rod, 111-guide rail, 112-fixed plate, 113-connecting frame, 114-slide, 115-roller, 201-locking mechanism, 202-mounting plate, 203-mounting cylinder, 204-piston, 205-slide, 206-engaging block, 207-first spring, 208-push plate, 301-rebound assembly, 302-mounting cavity, 303-limiting block, 304-top rod, 305-second spring. DETAILED DESCRIPTION

[0026] The first embodiment of the present application is: See also Figure 1-Figure 4 ,in, Figure 1 It is a schematic structural diagram of the first embodiment of the present invention. Figure 2 It is a front view of the first embodiment of the present invention. Figure 3 is a cross-sectional view of the first embodiment of the present invention. Figure 4 is another cross-sectional view of the first embodiment of the present invention.

[0027] The present invention provides a power quality detection device, comprising a mounting frame 101, two sliders 102, a power quality detection device body 103, two baffles with holes 104 and two locking components 105; the locking component 105 comprises a rotating rod 106, a locking block 107 and a knob 108; the locking component 105 also comprises a right-angle positioning block 109 and two positioning rods 110; the mounting frame 101 comprises two guide rails 111, two fixing plates 112 and a connecting frame 113; the guide rail 111 comprises a slideway 114 and a plurality of rollers 115; the above-mentioned solution solves the problem that the existing power quality detection device is troublesome to install and disassemble.

[0028] According to the present specific embodiment, the two sliders 102 are respectively connected to the mounting frame 101 in a sliding manner and are respectively located on the inner side of the mounting frame 101; the power quality detection device body 103 is respectively connected to the two sliders 102 in a fixed manner and is located between the two sliders 102; the two perforated baffles 104 are respectively connected to the mounting frame 101 and are respectively located on the inner side of the mounting frame 101; the two locking assemblies 105 are respectively arranged on the two sliders 102; the locking assembly 105 includes a rotating rod 106, a locking block 107 and a knob 108; the rotating rod 106 is connected to the slider 102 in a rotating manner and passes through the slider 102; the locking block 107 is fixedly connected to the rotating rod 106 and is located at the rear end of the rotating rod 106; the knob 108 is fixedly connected to the rotating rod 106 and is located at the front end of the rotating rod 106. The mounting frame 101 can be embedded and installed on the cabinet with screws. The mounting frame 101 is used to slide and install the two sliders 102. The two sliders 102 are respectively located on the left and right sides of the power quality detection device body 103. Therefore, the power quality detection device body 103 can be slidably installed on the inner side of the mounting frame 101, so as to be embedded and installed in the cabinet together with the mounting frame 101. There is a vertical lock hole on the perforated baffle 104, and the lock block 107 is adapted to the lock hole. The knob 108 is used to facilitate the rotation of the rotating rod 106. The rotation of the rotating rod 106 can drive the lock block 107 to rotate; during installation, the mounting frame 101 is embedded and installed on the cabinet with multiple screws; the two sliders 102 are slidably inserted along the mounting frame 101 to drive the power quality detection device body 103 to be embedded in the cabinet until the two lock blocks 107 pass through the two perforated baffles 104. The locking hole of the hole baffle plate 104; the two knobs 108 are rotated 90 degrees respectively, so that the two locking blocks 107 are rotated 90 degrees; the locking block 107 changes from the original vertical to the horizontal, just staggered with the locking hole of the hole baffle plate 104, so that the locking block 107 is blocked by the hole baffle plate 104, and the power quality detection device body 103 is installed between the mounting brackets 101, and the power quality detection device body 103 is also embedded and installed in the cabinet; when in use, the power quality detection device body 103 is connected to the wire to perform power quality detection; when disassembly is required, the two knobs 108 are rotated 90 degrees respectively, so that the two locking blocks 107 change from horizontal to vertical, just aligned with the locking holes of the two hole baffle plates 104, and the power quality detection device body 103 can be slid out; thereby solving the problem that the existing power quality detection device is more troublesome to install and disassemble.

[0029] The right-angle positioning block 109 is fixedly connected to the rotating rod 106 and penetrated by the rotating rod 106; the two positioning rods 110 are respectively fixedly connected to the slider 102 and are respectively located in front of the slider 102. When installing or removing the power quality detection device body 103, the knob 108 needs to be turned 90 degrees, and it is not convenient to judge whether the turning angle is 90 degrees. Therefore, the right-angle positioning block 109 is provided to assist with the two positioning rods 110. The right-angle positioning block 109 is roughly L-shaped, such as Figure 2 As shown, as long as the right-angle positioning block 109 contacts one of the positioning rods 110, the locking block 107 is just in a vertical or horizontal state. Therefore, when the right-angle positioning block 109 contacts one of the positioning rods 110 at the beginning, after rotating to contact the other positioning rod 110, the locking block 107 will correspondingly rotate 90 degrees, from horizontal to vertical or from vertical to horizontal. Figure 2 As shown, when the right-angle positioning block 109 on the right contacts the positioning rod 110 on the left, the locking block 107 on the right is in a horizontal state and is vertically staggered with the locking hole of the perforated baffle 104 on the right. When the power quality detection device body 103 needs to be disassembled, the knob 108 on the right is rotated clockwise to drive the right-angle positioning block 109 to rotate until it contacts the positioning rod 110 on the right, and the locking block 107 will turn from horizontal to vertical and align with the locking hole; similarly, the knob 108 on the left needs to be rotated counterclockwise; therefore, according to Figure 2 As shown, when disassembling the power quality detection device body 103, the knob 108 on the right side needs to be rotated clockwise, and the knob 108 on the left side needs to be rotated counterclockwise.

[0030] Secondly, the two guide rails 111 are slidably connected to the two sliders 102, and the two sliders 102 are located inside the two guide rails 111; the two fixing plates 112 are fixedly connected to the two guide rails 111, and are located in front of the two guide rails 111; the connection frame 113 is fixedly connected to the two guide rails 111, and is located behind the two guide rails 111. Each guide rail 111 is used to slidably install a slider 102, and the connection frame 113 is used to block the power quality detection device body 103 from the back, and has a large opening to facilitate the wire to pass through. The two fixing plates 112 have mounting holes and can be fixed to the cabinet with screws.

[0031] Meanwhile, the slideway 114 is fixedly connected to the connection frame 113 and is located at the front side of the connection frame 113; the plurality of rollers 115 are rotatably connected to the slideway 114 and are symmetrically arranged on the inner side of the slideway 114. The slideway 114 is used to install the plurality of rollers 115, and the arrangement of the plurality of rollers 115 makes the sliding block 102 slide more smoothly.

[0032] In the power quality detection device described in this embodiment, the mounting frame 101 can be embedded and installed on the cabinet by screws, and the mounting frame 101 is used to slide and install the two sliders 102, and the two sliders 102 are respectively located on the left and right sides of the power quality detection device body 103, so that the power quality detection device body 103 can be slidably installed on the inner side of the mounting frame 101, so as to be embedded and installed in the cabinet together with the mounting frame 101, and the perforated baffle 104 has a vertical lock hole, and the lock block 107 is adapted to the lock hole, and the knob 108 is used to facilitate the rotation of the rotating rod 106, and the rotation of the rotating rod 106 can drive the lock block 107 to rotate; during installation, the mounting frame 101 is embedded and installed on the cabinet by using multiple screws; the two sliders 102 are slidably inserted along the mounting frame 101, and the power quality detection device body 103 is driven to be embedded in the cabinet until the two lock blocks 107 are both The lock block 107 is inserted through the lock holes of the two perforated baffles 104; the two knobs 108 are rotated 90 degrees respectively, so that the two lock blocks 107 are rotated 90 degrees; the lock block 107 is changed from the original vertical to the horizontal, just staggered with the lock holes of the perforated baffles 104, so that the lock block 107 is blocked by the perforated baffles 104, and the power quality detection device body 103 is installed between the mounting frames 101, and the power quality detection device body 103 is embedded and installed in the cabinet; when in use, the power quality detection device body 103 is connected to the wire to perform power quality detection; when disassembly is required, the two knobs 108 are rotated 90 degrees respectively, so that the two lock blocks 107 are changed from horizontal to vertical, just aligned with the lock holes of the two perforated baffles 104, and the power quality detection device body 103 can be slid out; thereby solving the problem that the existing power quality detection device is more troublesome to install and disassemble.

[0033] The second embodiment of the present application is: Based on the first embodiment, please refer to Figure 5-Figure 7 ,in, Figure 5 It is a schematic structural diagram of the second embodiment of the present invention. Figure 6 yes Figure 5 A partial enlargement of detail A. Figure 7 is a cross-sectional view of a locking mechanism 201 according to a second embodiment of the present invention.

[0034] The locking assembly 105 of the power quality detection device provided by the present invention also includes a locking mechanism 201; the locking mechanism 201 includes a mounting plate 202, a mounting cylinder 203, a piston 204, a sliding rod 205, an engagement block 206 and a first spring 207; the locking mechanism 201 also includes a push plate 208.

[0035] According to this specific embodiment, the locking mechanism 201 is disposed at the front side of the slider 102. The locking mechanism 201 is used to lock the right-angle positioning block 109, thereby locking the rotating rod 106, and finally locking the locking block 107 so that it cannot rotate, thereby improving stability.

[0036] Among them, the mounting plate 202 is fixedly connected to the slider 102 and is located at the front side of the slider 102; the mounting cylinder 203 is fixedly connected to the mounting plate 202 and is located at the bottom of the mounting plate 202; the piston 204 is slidably connected to the mounting cylinder 203 and is located inside the mounting cylinder 203; the sliding rod 205 is fixedly connected to the piston 204, slidably connected to the mounting cylinder 203, and passes through the mounting cylinder 203; the engaging block 206 is fixedly connected to the sliding rod 205, slidably connected to the slider 102, and is located at the front side of the slider 102; the first spring 207 is arranged inside the mounting cylinder 203. The engagement block 206 is adapted to the end of the right-angle positioning block 109, and the first spring 207 applies a force to the engagement block 206 through the piston 204 and the slide bar 205, so that the engagement block 206 clamps the right-angle positioning block 109, thereby locking the rotating rod 106, and finally locking the locking block 107 so that it cannot rotate. When it needs to rotate, the engagement block 206 is moved up and no longer clamps the right-angle positioning block 109. The locking block 107 can be locked in a horizontal state or a vertical state by using the engagement block 206.

[0037] Secondly, the push plate 208 is fixedly connected to the engagement block 206 and is located at one side of the engagement block 206. The push plate 208 is used to facilitate pushing the engagement block 206 upward.

[0038] In the power quality detection device described in this embodiment, the engagement block 206 is adapted to the end of the right-angle positioning block 109, and the first spring 207 applies a force to the engagement block 206 through the piston 204 and the slide bar 205, so that the engagement block 206 clamps the right-angle positioning block 109, thereby locking the rotating rod 106, and finally locking the locking block 107 so that it cannot rotate. When it needs to rotate, the engagement block 206 is moved up and no longer clamps the right-angle positioning block 109. The locking block 107 can be locked in a horizontal state or a vertical state by using the engagement block 206.

[0039] The third embodiment of the present application is: Based on the second embodiment, please refer to Figure 8 ,in, Figure 8 is a cross-sectional view of a third embodiment of the present invention.

[0040] The power quality detection device provided by the present invention further includes four rebound components 301 ; the slider 102 has two installation cavities 302 ; the rebound component 301 includes a limit block 303 , a push rod 304 and a second spring 305 .

[0041] According to this specific embodiment, a rebound assembly 301 is disposed in each installation cavity 302. When the power quality detection device body 103 is slidably installed between the installation frames 101, the four rebound assemblies 301 are compressed to accumulate elastic potential energy, and when the two locking blocks 107 are no longer blocked by the two perforated baffles 104, the four rebound assemblies 301 drive the power quality detection device body 103 to automatically pop out a distance, so as to facilitate removal.

[0042] The limit block 303 is slidably connected to the slider 102 and is located in the installation cavity 302; the push rod 304 is fixedly connected to the limit block 303 and is slidably connected to the slider 102 and passes through the slider 102; the second spring 305 is arranged in the installation cavity 302. When the power quality detection device body 103 is slidably installed between the mounting brackets 101, the four push rods 304 drive the four limit blocks 303 to compress the four second springs 305 to accumulate elastic potential energy. When the two locking blocks 107 are no longer blocked by the two perforated baffles 104, the four second springs 305 give a force to the four push rods 304 to drive the power quality detection device body 103 to automatically pop out a distance for easy removal.

[0043] In the power quality detection device described in this embodiment, when the power quality detection device body 103 is slidably installed between the mounting frames 101, the four push rods 304 drive the four limit blocks 303 to compress the four second springs 305 to accumulate elastic potential energy. When the two locking blocks 107 are no longer blocked by the two perforated baffles 104, the four second springs 305 give a force to the four push rods 304 to drive the power quality detection device body 103 to automatically pop out a distance for easy removal.

[0044] The fourth embodiment of the present application is: See also Fig. 9 ,in, Fig. 9 4 is a flow chart of the fourth embodiment of the present invention.

[0045] The present invention provides a method for detecting power quality, the specific steps of which include: S1 uses a plurality of screws to embed and install the mounting frame 101 on the cabinet; S2: Slide and insert the two sliders 102 along the mounting frame 101, driving the power quality detection device body 103 to be embedded in the cabinet until the two locking blocks 107 pass through the locking holes of the two perforated baffles 104; S3: Rotate the two knobs 108 90 degrees respectively, so that the two locking blocks 107 are rotated 90 degrees; S4 connects the power quality detection device body 103 with wires to perform power quality detection.

[0046] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A power quality detection device, characterized in that: It includes a mounting frame, two slide blocks, a power quality detection device body, two baffles with holes and two locking components; The two sliders are respectively connected to the mounting frame in a sliding manner and are respectively located on the inner side of the mounting frame; the power quality detection device body is respectively connected to the two sliders in a fixed manner and is located between the two sliders; the two baffles with holes are respectively connected to the mounting frame and are respectively located on the inner side of the mounting frame; the two locking assemblies are respectively arranged on the two sliders; the locking assembly includes a rotating rod, a locking block and a knob; the rotating rod is rotationally connected to the slider and passes through the slider; the locking block is fixedly connected to the rotating rod and is located at the rear end of the rotating rod; the knob is fixedly connected to the rotating rod and is located at the front end of the rotating rod.

2. A power quality detection device according to claim 1, characterized in that: The locking assembly also includes a right-angle positioning block and two positioning rods; the right-angle positioning block is fixedly connected to the rotating rod and penetrated by the rotating rod; the two positioning rods are respectively fixedly connected to the sliding block and are respectively located at the front side of the sliding block.

3. A power quality detection device as claimed in claim 2, characterized in that: The mounting frame includes two guide rails, two fixed plates and a connecting frame; the two guide rails are respectively slidably connected to the two sliders, and the two sliders are respectively located on the inner sides of the two guide rails; the two fixed plates are respectively fixedly connected to the two guide rails and are respectively located on the front sides of the two guide rails; the connecting frame is respectively fixedly connected to the two guide rails and is located on the rear sides of the two guide rails.

4. A power quality detection device as claimed in claim 3, characterized in that: The guide rail includes a slide and a plurality of rollers; the slide is fixedly connected to the connection frame and is located at the front side of the connection frame; the plurality of rollers are respectively rotatably connected to the slide and are symmetrically arranged on the inner side of the slide.

5. A power quality detection device as claimed in claim 4, characterized in that: The locking assembly further comprises a locking mechanism; the locking mechanism is arranged at the front side of the sliding block.

6. A power quality detection device as claimed in claim 5, characterized in that: The locking mechanism includes a mounting plate, a mounting cylinder, a piston, a sliding rod, an engaging block and a first spring; the mounting plate is fixedly connected to the slider and is located at the front side of the slider; the mounting cylinder is fixedly connected to the mounting plate and is located at the bottom of the mounting plate; the piston is slidably connected to the mounting cylinder and is located inside the mounting cylinder; the sliding rod is fixedly connected to the piston and is slidably connected to the mounting cylinder and passes through the mounting cylinder; the engaging block is fixedly connected to the sliding rod and is slidably connected to the slider and is located at the front side of the slider; the first spring is arranged inside the mounting cylinder.

7. A power quality detection device as claimed in claim 6, characterized in that: The locking mechanism also includes a push plate; the push plate is fixedly connected to the engagement block and is located at one side of the engagement block.

8. A power quality detection method, applied to a power quality detection device as claimed in any one of claims 1 to 7, characterized in that: The specific steps include: The mounting frame is embedded and installed on the cabinet using multiple screws; Slide the two sliders along the mounting frame and insert them into the cabinet, driving the power quality detection device body to be embedded in the cabinet until the two lock blocks pass through the lock holes of the two perforated baffles; Turn the two knobs 90 degrees respectively so that both locking blocks rotate 90 degrees; Connect the wires to the power quality detection device to perform power quality detection.

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