Capacitance detection device

Abstract

The application provides a kind of capacitance detection device, comprising: box, box is provided with containing space inside;Host, host is set in containing space, host includes shell, first wireless transceiver and controller, first wireless transceiver and controller are all set on shell;Sensing measurement structure, can be taken out and placed in containing space, sensing measurement structure includes measurement main body and second wireless transceiver set on measurement main body, second wireless transceiver is signal connected with first wireless transceiver, to transmit the measurement signal of measurement main body to first wireless transceiver.The technical scheme of the application effectively solves the problem of not flexible in related art that wired current clamp meter measurement detects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of capacitance detection, in particular to a capacitance detection device. BACKGROUND

[0002] The capacitor group of a transformer substation is mainly used for compensating reactive power and improving the power factor of a power system. As an important parameter of a power capacitor, the capacitance can sensitively reflect whether there are abnormal conditions such as medium damp, element breakdown or oil shortage in the internal capacitor unit. Therefore, the power capacitor needs to detect the capacitance before new equipment is put into operation and in regular maintenance.

[0003] The currently used power capacitor detector outputs a test voltage through a voltage test line connected to a host computer, and detects the real-time current value of each capacitor unit through a clamp ammeter connected to the host computer. The host computer inputs the voltage and current signals collected in real time into a calculation module to calculate the capacitance, thereby completing the capacitance measurement of the capacitor unit. The wired current clamp meter measurement has problems such as inflexible detection, high risk of electric shock and low man-machine efficiency. SUMMARY

[0004] The main purpose of the present application is to provide a capacitance detection device to solve the problem of inflexible wired current clamp meter measurement in the related art.

[0005] In order to achieve the above purpose, the present application provides a capacitance detection device, which comprises: a box body, a containing space is arranged in the box body; a host computer, the host computer is arranged in the containing space, the host computer comprises a shell, a first wireless transceiver and a controller, the first wireless transceiver and the controller are arranged in the shell; an inductive measurement structure, the inductive measurement structure is placed in the containing space in a removable manner, the inductive measurement structure comprises a measurement main body and a second wireless transceiver arranged on the measurement main body, the second wireless transceiver is signal connected with the first wireless transceiver, and is used to transmit a measurement signal of the measurement main body to the first wireless transceiver.

[0006] Further, the capacitance detection device further comprises a fixing frame, the fixing frame is movably arranged in the containing space along a preset direction, and the fixing frame has a fixing position in abutment with the inductive measurement structure and a avoiding position avoiding the inductive measurement structure.

[0007] Further, the fixing frame comprises a connecting plate and an elastic pressing plate connected with the connecting plate, the connecting plate is movably arranged in the containing space along the preset direction, and the elastic pressing plate is arranged on one side of the bottom of the connecting plate facing the containing space, and when the fixing frame is in the fixing position, the elastic pressing plate is in abutment with the inductive measurement structure.

[0008] Further, the capacitive detection device further comprises a stopper, which is swingably arranged in the box body and has a recycling locking position and an outward swinging unlocking position; when the stopper is in the recycling locking position, the stopper abuts against the first end of the fixing frame to keep the fixing frame in the fixed position; when the stopper is in the outward swinging unlocking position, the stopper avoids the fixing frame to enable the fixing frame to move in the preset direction.

[0009] Further, the stopper comprises a host transceiving antenna electrically connected with the first wireless transceiver, a first end of the host transceiving antenna is swingably arranged in the box body; when the stopper is in the recycling locking position, a second end of the host transceiving antenna is located in the containing space and abuts against the fixing frame; when the stopper is in the outward swinging unlocking position, the second end of the host transceiving antenna swings out of the box body.

[0010] Further, the capacitive detection device further comprises a limiting plate arranged in the containing space; when the fixing frame is in the fixed position, the second end of the fixing frame is limitedly matched with a first end of the limiting plate; when the fixing frame is in the avoiding position, the second end of the fixing frame is separated from the first end of the limiting plate.

[0011] Further, the capacitive detection device further comprises a limiting part arranged between the fixing frame and the limiting plate, the limiting part comprises a limiting protrusion and a limiting groove, one of the limiting protrusion and the limiting groove is arranged at the second end of the fixing frame, and the other of the limiting protrusion and the limiting groove is arranged at the first end of the limiting plate.

[0012] Further, the inductive measurement structure is arranged below the fixing frame and the limiting plate, a second end of the limiting plate is swingably arranged in the box body; when the fixing frame is in the avoiding position, the first end of the limiting plate can swing out of the box body.

[0013] Further, the inductive measurement structure further comprises an elongated piece arranged on the measurement main body, the elongated piece is movably arranged on the measurement main body along the length direction of the measurement main body.

[0014] Further, the inductive measurement structure further comprises a butt locking piece arranged between the elongated piece and the measurement main body to fix the elongated piece.

[0015] The application discloses a capacitor detection device, which comprises a box body, a main machine and a sensing measurement structure. The box body is internally provided with an accommodating space. The main machine is arranged in the accommodating space. The main machine comprises a shell, a first wireless transceiver and a controller, and the first wireless transceiver and the controller are arranged on the shell. The sensing measurement structure is arranged in the accommodating space and can be taken out. The sensing measurement structure comprises a measurement main body and a second wireless transceiver, the second wireless transceiver is arranged on the measurement main body, the second wireless transceiver is signal-connected with the first wireless transceiver, and the second wireless transceiver can transmit a measurement signal of the measurement main body to the first wireless transceiver. Through the above arrangement, the box body can drive the movement of the main machine and the sensing measurement structure, so that the capacitor detection device can work at different positions. The box body can protect the main machine and the sensing measurement structure. The second wireless transceiver can transmit the measurement signal of the measurement main body to the first wireless transceiver, so that the controller can receive the measurement signal of the measurement main body, and according to the measurement signal, the calculation of relevant parameters can be completed, and the detection of the capacitor can be realized. The second wireless transceiver and the first wireless transceiver are signal-connected, so that when the measurement main body is used to measure the relevant parameters of the capacitor, the measurement main body can move in a larger range, and the problem that the movement range of the measurement main body is limited due to the arrangement of the connecting wire between the measurement main body and the main machine is avoided. Therefore, the technical scheme of the application effectively solves the problem of inflexible wired current clamp meter measurement detection in the related art. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the application and are incorporated herein in conjunction with the description of the application. The drawings are as follows:

[0017] Figure 1 Fig. 1 shows a perspective structural schematic view of an embodiment of a capacitor detection device according to the application;

[0018] Figure 2 Fig. 2 shows an exploded structural schematic view of the capacitor detection device of Fig. 1; Figure 1

[0019] Figure 3 Fig. 3 shows a perspective structural schematic view of a fixing frame of the capacitor detection device of Fig. 1; Figure 2

[0020] Figure 4 Fig. 4 shows a perspective structural schematic view of a limiting plate of the capacitor detection device of Fig. 1; Figure 2

[0021] Figure 5 Fig. 5 shows a perspective structural schematic view of a sensing measurement structure of the capacitor detection device of Fig. 1; Figure 1

[0022] ​​​​Figure 6 a cross-sectional view of the inductive measuring structure of Figure 5 a cross-sectional view of the inductive measuring structure of

[0023] Figure 7 a cross-sectional view of the inductive measuring structure of Figure 6 a cross-sectional view of the inductive measuring structure of

[0024] wherein the above-mentioned figures comprise the following reference signs:

[0025] 10, box; 11, containing space; 20, main unit; 21, housing; 30, inductive measuring structure; 31, measuring body; 32, extension; 33, abutting locking member; 40, fixing frame; 41, connecting plate; 42, elastic pressing plate; 50, stop member; 51, main unit transceiving antenna; 60, limiting plate; 70, limiting portion; 71, limiting protrusion; 72, limiting groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment is actually only illustrative, but not intended to limit the present application and its application or use in any way. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0027] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0029] like Figure 1 and Figure 2 As shown, the capacitance detection device of this embodiment includes: a housing 10, a main unit 20, and an inductive measurement structure 30. The housing 10 has a receiving space 11. The main unit 20 is disposed within the receiving space 11 and includes a housing 21, a first wireless transceiver, and a controller. Both the first wireless transceiver and the controller are mounted on the housing 21. The inductive measurement structure 30 is removably placed within the receiving space 11. The inductive measurement structure 30 includes a measuring body 31 and a second wireless transceiver mounted on the measuring body 31. The second wireless transceiver is signal-connected to the first wireless transceiver to transmit the measurement signal from the measuring body 31 to the first wireless transceiver.

[0030] The technical scheme is applied to the capacitor detection device, which comprises a box body 10, a host 20 and a sensing measurement structure 30. The box body 10 is internally provided with a containing space 11. The host 20 is arranged in the containing space 11. The host 20 comprises a shell 21, a first wireless transceiver and a controller, and the first wireless transceiver and the controller are arranged on the shell 21. The sensing measurement structure 30 is placed in the containing space 11 and can be taken out. The sensing measurement structure 30 comprises a measurement main body 31 and a second wireless transceiver, and the second wireless transceiver is arranged on the measurement main body 31. The second wireless transceiver is signal-connected with the first wireless transceiver, and the second wireless transceiver can transmit a measurement signal of the measurement main body 31 to the first wireless transceiver. Through the above arrangement, the box body 10 can drive the host 20 and the sensing measurement structure 30 to move, so that the capacitor detection device can work at different positions. The box body 10 can protect the host 20 and the sensing measurement structure 30. The second wireless transceiver can transmit the measurement signal of the measurement main body 31 to the first wireless transceiver, and then the controller can receive the measurement signal of the measurement main body 31 and complete the calculation of relevant parameters according to the measurement signal, thereby realizing the detection of the capacitor. The second wireless transceiver is signal-connected with the first wireless transceiver, so that the measurement main body 31 can move in a larger range when measuring the relevant parameters of the capacitor, thereby avoiding the problem that the movement range of the measurement main body 31 is limited due to the arrangement of the connecting wire between the measurement main body 31 and the host 20. Therefore, the technical scheme of the embodiment effectively solves the problem of inflexible wired current clamp meter measurement and detection in the related art.

[0031] The capacitor detection device of the embodiment can detect the capacitance of the capacitor. The signal transmission and reception between the first wireless transceiver and the second wireless transceiver can be realized through 2.4G wireless signals, 5G wireless signals or Bluetooth. The host 20 can adopt an existing detection device, such as the capacitor group fault detector in the capacitor group fault detector with the publication number CN204439746U.

[0032] As shown in Figure 1 and Figure 2 In the embodiment, the capacitor detection device further comprises a fixing frame 40, which is movably arranged in the containing space 11 along a preset direction. The fixing frame 40 has a fixed position for stopping the sensing measurement structure 30 and a avoiding position for avoiding the sensing measurement structure 30. When the fixing frame 40 moves in the containing space 11, it can be switched between the fixed position and the avoiding position. When the fixing frame 40 is located at the fixed position, the fixing frame 40 can stop the sensing measurement structure 30 to prevent the sensing measurement structure 30 from falling out of the containing space 11. When the fixing frame 40 is in the avoiding position, the sensing measurement structure 30 can be taken out of the containing space.

[0033] As shown in Figure 2 and Figure 3 In the embodiment, the fixing frame 40 comprises a connecting plate 41 and an elastic pressing plate 42 connected with the connecting plate 41, the connecting plate 41 is movably arranged in the accommodating space 11 along a preset direction, and the elastic pressing plate 42 is arranged on the side of the connecting plate 41 facing the bottom of the accommodating space 11, and the elastic pressing plate 42 is in abutting stop cooperation with the inductive measuring structure 30 when the fixing frame 40 is in the fixed position. The movement of the connecting plate 41 can drive the movement of the elastic pressing plate 42, so that the elastic pressing plate 42 can be in abutting stop cooperation with the inductive measuring structure 30 or avoid the inductive measuring structure 30. When the elastic pressing plate 42 is in abutting stop cooperation with the inductive measuring structure 30, the elastic pressing plate 42 will not cause damage to the inductive measuring structure 30.

[0034] The material of the elastic pressing plate 42 can be silica gel, rubber or other elastic materials.

[0035] As shown in Figure 1 and Figure 2 In the embodiment, the capacitive detection device further comprises a stopper 50, the stopper 50 is swingably arranged in the box body 10 and has a recovery locking position and an outward swing unlocking position, when the stopper 50 is in the recovery locking position, the stopper 50 is in abutting cooperation with the first end of the fixing frame 40, so that the fixing frame 40 is kept in the fixed position, when the stopper 50 is in the outward swing unlocking position, the stopper 50 avoids the fixing frame 40, so that the fixing frame 40 can move along the preset direction. When the stopper 50 swings, it can be switched between the recovery locking position and the outward swing unlocking position. When the stopper 50 is in abutting cooperation with the first end of the fixing frame 40, the fixing frame 40 can be kept in the fixed position, that is, the fixing frame 40 can be kept stationary, and then the fixing frame 40 can effectively limit the inductive measuring structure 30. When the stopper 50 avoids the fixing frame 40, the fixing frame 40 can move in the accommodating space 11.

[0036] It should be noted that the fixing frame 40 further comprises a transmission plate, the transmission plate is arranged at the first end of the connecting plate 41 and extends from the connecting plate 41 to the bottom of the accommodating space 11, and the transmission plate is in transmission cooperation with the stopper 50. The transmission plate is arranged in parallel with the elastic pressing plate 42.

[0037] The stopper 50, the transmission plate and the elastic pressing plate 42 are sequentially arranged in the preset direction.

[0038] As shown in Figure 1 and Figure 2As shown, in the embodiment, the stopper 50 comprises a host transceiver antenna 51 electrically connected with the first wireless transceiver, a first end of the host transceiver antenna 51 is swingably arranged in the box body 10, when the stopper 50 is in the recycling locking position, a second end of the host transceiver antenna 51 is located in the containing space 11 and abuts against the fixed frame 40, when the stopper 50 is in the outward swing unlocking position, the second end of the host transceiver antenna 51 swings out of the box body 10. The host transceiver antenna 51 can not only realize signal transmission between the first wireless transceiver and the second wireless transceiver, but also realize fixation of the position of the fixed frame 40.

[0039] As shown in Figure 2 and Figure 4 As shown, in the embodiment, the capacitance detection device further comprises a limiting plate 60 arranged in the containing space 11, when the fixed frame 40 is in the fixed position, a second end of the fixed frame 40 is in limiting cooperation with a first end of the limiting plate 60, when the fixed frame 40 is in the avoiding position, the second end of the fixed frame 40 is separated from the first end of the limiting plate 60. The limiting plate 60 can be in limiting cooperation with the fixed frame 40, so that the fixed frame 40 can be more stably in the fixed position. When the second end of the fixed frame 40 is separated from the limiting plate 60, the fixed frame 40 can move in the containing space 11, and then the inductive measurement structure 30 can be taken out.

[0040] It should be noted that when the stopper 50 swings, if the stopper 50 swings towards the containing space, the stopper 50 can press the fixed frame 40, so that the fixed frame 40 moves in a preset direction towards the direction close to the limiting plate 60, if the stopper 50 swings towards the outside of the box body 10, the stopper 50 is separated from the fixed frame 40, and the fixed frame 40 can move in a preset direction towards the direction away from the limiting plate 60.

[0041] As shown in Figure 2 and Figure 3 As shown, the capacitance detection device further comprises a guide part, the guide part comprises a guide groove and a guide block, the guide groove is arranged on the first inner side wall of the box body 10, the guide block is arranged on the side of the transmission plate towards the first inner side wall, and the guide groove extends in a preset direction. An elastic member is arranged between the end of the guide groove away from the stopper 50 and the end of the guide block away from the stopper 50. When the stopper 50 is switched from the recycling locking position to the outward swing unlocking position, the elastic member can apply an elastic force to the transmission plate, so that the transmission plate drives the connecting plate 41 to move towards the direction away from the limiting plate 60.

[0042] The elastic member comprises a spring. The side of the shell 21 towards the first inner side wall is also provided with a guide groove, and the side of the connecting plate towards the shell is also provided with a guide block, and an elastic member is arranged between the guide groove and the guide block.

[0043] The box body 10 further comprises a second inner side wall, a third inner side wall and a fourth inner side wall which are sequentially arranged and connected, the second inner side wall is connected between the first inner side wall and the third inner side wall, and the first inner side wall is connected between the second inner side wall and the fourth inner side wall. The preset direction is arranged in parallel with the direction of the second inner side wall to the fourth inner side wall. The limiting plate 60 is hingedly connected with one end of the second inner side wall away from the first inner side wall, specifically, through a connecting shaft. The limiting plate 60 is arranged between the shell 21 and the second inner side wall. The stopper 50 and the fixing frame 40 are arranged between the shell 21 and the first inner side wall.

[0044] An installation boss is arranged in the accommodation space 11, the installation boss is L-shaped, and the installation boss is located below the limiting plate 60. The installation boss is located between the shell 21 and the box body 10, and the installation boss is in abutting cooperation with one side of the shell 21 facing the second inner side wall and in abutting cooperation with one side of the shell 21 facing the first inner side wall, so that the shell 21 can be limited to stably place in the box body 10.

[0045] As shown in Figure 3 and Figure 4 In the embodiment, the capacitance detection device further comprises a limiting portion 70 arranged between the fixing frame 40 and the limiting plate 60, the limiting portion 70 comprises a limiting protrusion 71 and a limiting groove 72, the limiting protrusion 71 is arranged at the second end of the fixing frame 40, and the limiting groove 72 is arranged at the first end of the limiting plate 60. The limiting protrusion 71 and the limiting groove 72 can be limited to cooperate, that is, the second end of the fixing frame 40 and the first end of the limiting plate 60 can be limited to cooperate, so that the fixing frame 40 can be more stably in a fixed position.

[0046] The limiting protrusion 71 is arranged at the second end of the connecting plate 41. The first end of the limiting plate 60 is provided with a avoiding gap, and the limiting groove 72 is arranged at one side of the avoiding gap facing the first end of the connecting plate 41. When the fixing frame 40 is in the fixed position, part of the structure of the second end of the connecting plate 41 extends into the avoiding gap, and the limiting protrusion 71 is inserted into the limiting groove.

[0047] It should be noted that when the fixing frame 40 moves in the preset direction in the accommodation space 11 to the direction close to the limiting plate 60, the limiting protrusion 71 can be inserted into the limiting groove 72 to realize the limiting cooperation between the fixing frame 40 and the limiting plate 60.

[0048] In other embodiments, the limiting groove 72 is arranged at the second end of the fixing frame 40, and the limiting protrusion 71 is arranged at the first end of the limiting plate 60.

[0049] As shown in Figure 1 and Figure 5As shown, in the embodiment, the inductive measuring structure 30 is arranged below the fixing frame 40 and the limiting plate 60, the second end of the limiting plate 60 is arranged in the box body 10 in a swing manner, and the first end of the limiting plate 60 can swing out of the box body 10 when the fixing frame 40 is in the avoiding position. The fixing frame 40 and the limiting plate 60 can jointly limit the inductive measuring structure 30, so as to avoid the inductive measuring structure 30 from falling out of the accommodating space 11. When the fixing frame 40 and the limiting plate 60 are separated, the limiting plate 60 swings to avoid the inductive measuring structure 30, so that the inductive measuring structure 30 can be taken out of the accommodating space 11.

[0050] As shown, Figure 6 In the embodiment, the inductive measuring structure 30 further comprises an extension piece 32 arranged on the measuring main body 31, and the extension piece 32 is movably arranged on the measuring main body 31 along the length direction of the measuring main body 31. By arranging the extension piece 32, the overall length of the inductive measuring structure 30 is longer, which is convenient for an operator to hold the extension piece 32 to make the inductive measuring structure 30 extend into different positions to measure capacitance. Figure 6 and Figure 7 In the embodiment, the inductive measuring structure 30 further comprises a abutting locking piece 33 arranged between the extension piece 32 and the measuring main body 31 to fix the extension piece 32. After the extension piece 32 moves on the measuring main body 31, the abutting locking piece 33 can fix the extension piece 32 to keep the relative position of the extension piece 32 and the measuring main body 31 fixed.

[0051] The measuring main body 31 is provided with a first sliding groove, and the extension piece 32 comprises a first extension rod, and a first end of the first extension rod slides in the first sliding groove. The first sliding groove extends along the length direction of the measuring main body 31. The abutting locking piece 33 comprises a first screw, and a side of the measuring main body 31 is provided with a first mounting screw hole, and the first screw passes through the first mounting screw hole and abuts against the first extension rod to keep the position of the first extension rod fixed.

[0052] The measuring main body 31 is further provided with a second sliding groove, and the extension piece 32 further comprises a second extension rod, and a first end of the second extension rod slides in the second sliding groove. The second sliding groove extends along the length direction of the measuring main body 31. The abutting locking piece 33 comprises a second screw, and a side of the measuring main body 31 is provided with a second mounting screw hole, and the second screw passes through the second mounting screw hole and abuts against the second extension rod to keep the position of the second extension rod fixed.

[0053] The extension piece 32 further comprises an arc-shaped plate connected between a second end of the first extension rod and a second end of the second extension rod.

[0054] The second wireless transceiving module comprises a clamp meter transceiving antenna. The measuring main body 31 is provided with a mounting groove, and the clamp meter transceiving antenna is foldably arranged in the mounting groove.

[0055] The first and second sliding grooves are symmetrically arranged inside the two sides of the bottom end of the measuring body 31, the arc-shaped plate is arranged outside the first and second sliding grooves, the top of the arc-shaped plate is fixedly provided with a control switch, one side of the top end of the measuring body 31 is fixedly provided with a fixed jaw, the other side of the top end of the measuring body 31 is provided with a movable slot, a movable jaw is movably installed in the movable slot through a torsional spring shaft, one side of the bottom end of the movable jaw is provided with a trigger, the trigger is arranged outside the measuring body 31, an electric push rod is arranged on one side of the movable jaw, the electric push rod is arranged obliquely above the torsional spring shaft, the output rod of the electric push rod is in contact with the movable jaw, the control switch is electrically connected with the measuring body 31 and the electric push rod through wires, the first and second extension rods are pulled through the arc-shaped plate, the first extension rod slides in the first sliding groove, and the second extension rod slides in the second sliding groove, so that the length of the measuring body 31 can be adjusted, the fixing between the extension piece 32 and the measuring body 31 is facilitated through the abutting locking piece 33, so that the measuring body 31 is conveniently held through the extension piece 32, the dip meter transceiving antenna can be stored through the mounting groove, the protection of the dip meter transceiving antenna is increased, the electric push rod is started through the control switch, the movable jaw is pressed through the electric push rod, the movable jaw is separated from the fixed jaw, the measuring body 31 is conveniently used, and the safety of operation is improved.

[0056] The top end of the box body 10 is movably provided with an upper cover through a hinge, a lock is arranged between one end of the upper cover and the box body 10, the main machine transceiving antenna 51 and the inductive measuring structure 30 can be stored through the containing space 11, the protection and safety of the main machine transceiving antenna 51 and the inductive measuring structure 30 are increased, the carrying of the capacitance detection device is also facilitated, and the main machine 20 is a capacitor fault detection instrument.

[0057] The wireless transceiving module is arranged in the main machine 20 and the inductive measuring structure 30, the main machine 20 outputs a test voltage, the inductive measuring structure 30 controls the on-off of the output voltage of the main machine 20, and wirelessly transmits the real-time collected current signal back to the main machine, the calculation module of the main machine 20 calculates the capacitance value according to the received voltage signal and current signal, the detection of the capacitance is completed, the problem that the wired current clamp meter needs to be adjusted multiple times to cause inflexible work is avoided, and the risk that the work personnel falls from a high place caused by tripping of the current test line is eliminated.

[0058] The capacitive detection device of the embodiment can conveniently accommodate the inductive measurement structure 30 and the host transceiving antenna 51 by arranging the accommodating space 11, and the limiting plate 60 can be arranged above the inductive measurement structure 30. The limiting plate 60 limits the fixing frame 40 through the limiting part 70. After the host transceiving antenna 51 swings into the accommodating space 11, the fixing frame 40 can be extruded, so that the limiting plate 60 and the fixing frame 40 can fix the inductive measurement structure. The elastic pressing plate 42 can extrude the inductive measurement structure 30, thereby improving the safety of the inductive measurement structure 30 and increasing the protection of the inductive measurement structure 30.

[0059] The mounting groove on the measuring body 31 can accommodate and protect the clamp-on transceiving antenna. The length of the inductive measurement structure 30 can be increased by adjusting the lengthener 32. The movable jaw can be separated from the fixed jaw by starting the electric push rod through the control switch, extruding the movable jaw, thereby conveniently clamping the inductive measurement structure 30 on the detection point without operating the trigger, so that the operator can be away from the detection point when operating the inductive measurement structure 30, thereby improving the safety of the operator. The volume of the inductive measurement structure 30 can be reduced by adjusting the lengthener 32, thereby conveniently accommodating the inductive measurement structure 30.

[0060] In use of the capacitance detection device, the upper cover is opened by the lock, and the main transceiver antenna 51 is rotated and adjusted, the main transceiver antenna 51 is swung towards the outside of the box body 10, the fixing frame 40 moves along the preset direction under the action of the guide block and the spring, the fixing frame 40 drives the limiting protrusion, the limiting protrusion 71 is moved out of the inside of the limiting groove 72, the limiting plate 60 is rotated towards the outside of the box body 10, the inductive measurement structure 30 is taken out, the abutting locking piece 33 is loosened, the arc-shaped plate is pulled, the arc-shaped plate drives the first and second extension rods to slide in the measurement main body 31, the abutting locking piece 33 is reversely rotated and the extension piece 32 is extruded and fixed, the length of the measurement main body 31 can be adjusted, the measurement main body 31 is held through the extension piece 32, the clamp meter transceiver antenna is rotated out of the inside of the installation groove, the inside of the main machine 20 and the measurement main body 31 is provided with a wireless transceiver module, the main machine 20 and the measurement main body 31 are connected through the wireless transceiver module, the electric push rod is started through the control switch, the output rod of the electric push rod extrudes the movable jaw, the movable jaw is rotated outwards through the torsional spring rotating shaft, the movable jaw and the fixed jaw are separated, the movable jaw and the fixed jaw are sleeved at the detection point position, the electric push rod is retracted, the movable jaw is reversely rotated under the action of the torsional spring rotating shaft, the main machine 20 outputs the test voltage, the measurement main body 31 can control the on-off of the output voltage of the main machine, and the real-time collected current signal is wirelessly transmitted back to the main machine 20, the controller calculates the capacitance value according to the received voltage and current signal, the capacitance detection is completed, the problem of inflexible work caused by multiple adjustments of wiring of the wired current clamp meter is avoided, and the risk of falling of the worker caused by tripping of the current test line is eliminated; after the detection is completed, the clamp meter transceiver antenna is folded and rotated into the inside of the installation groove, the protection of the clamp meter transceiver antenna can be increased, the extension piece 32 is slid into the inside of the measurement main body 31 and is fixed through the abutting locking piece 33, the volume of the measurement main body 31 can be reduced, the measurement main body 31 is placed in the containing space 11 and the limiting plate 60 is covered above the measurement main body 31, the fixing frame 40 is moved along the preset direction, the fixing frame 40 drives the limiting protrusion 71 and clamps it in the inside of the limiting groove 72, the limiting plate 60 can be limited, the main transceiver antenna 51 is folded into the inside of the containing space 11, and one end of the main transceiver antenna 51 abuts against the fixing frame 40, so that the protection of the measurement main body 31 can be increased.

[0061] In the description of the application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0062] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0063] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the differentiation of corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the application.

[0064] The above only describes the preferred embodiments of the application and is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of protection of the application.

Claims

1. A capacitance detection device, characterized by, The application relates to a capacitive detection device. The capacitive detection device comprises a box (10) provided with a containing space (11) inside; a main machine (20) arranged in the containing space (11), wherein the main machine (20) comprises a shell (21), a first wireless transceiver and a controller, and the first wireless transceiver and the controller are arranged in the shell (21); and an inductive measurement structure (30) arranged in the containing space (11) in a removable manner, wherein the inductive measurement structure (30) comprises a measurement main body (31) and a second wireless transceiver arranged on the measurement main body (31), and the second wireless transceiver is signal-connected with the first wireless transceiver and used for transmitting a measurement signal of the measurement main body (31) to the first wireless transceiver. The capacitive detection device further comprises a fixing frame (40) movably arranged in the containing space (11) along a preset direction, wherein the fixing frame (40) has a fixed position in abutment with the inductive measurement structure (30) and an avoiding position avoiding the inductive measurement structure (30). The capacitive detection device further comprises a limiting plate (60) arranged in the containing space (11), wherein when the fixing frame (40) is in the fixed position, a second end of the fixing frame (40) is in limiting cooperation with a first end of the limiting plate (60), and when the fixing frame (40) is in the avoiding position, the second end of the fixing frame (40) is separated from the first end of the limiting plate (60). The capacitive detection device further comprises a limiting part (70) arranged between the fixing frame (40) and the limiting plate (60), wherein the limiting part (70) comprises a limiting protrusion (71) and a limiting groove (72), one of the limiting protrusion (71) and the limiting groove (72) is arranged at the second end of the fixing frame (40), and the other of the limiting protrusion (71) and the limiting groove (72) is arranged at the first end of the limiting plate (60). The inductive measurement structure (30) is arranged below the fixing frame (40) and the limiting plate (60), a second end of the limiting plate (60) is swingably arranged in the box (10), and when the fixing frame (40) is in the avoiding position, the first end of the limiting plate (60) can swing out of the box (10). The fixing frame (40) comprises a connecting plate (41) and an elastic pressing plate (42) connected with the connecting plate (41), the connecting plate (41) is movably arranged in the containing space (11) along a preset direction, the elastic pressing plate (42) is arranged on a side of the connecting plate (41) facing the bottom of the containing space (11), and when the fixing frame (40) is in the fixed position, the elastic pressing plate (42) is in abutment with the inductive measurement structure (30). ​ 2. The capacitance detection device according to claim 1, wherein ​ 3. The capacitance detection device according to claim 1, wherein The electric capacity detection device further comprises a stopper (50) swingably arranged in the box (10) and having a recycling locking position and an outward swing unlocking position; when the stopper (50) is in the recycling locking position, the stopper (50) abuts against the first end of the fixed frame (40) to keep the fixed frame (40) in the fixed position; when the stopper (50) is in the outward swing unlocking position, the stopper (50) avoids the fixed frame (40) to enable the fixed frame (40) to move in a preset direction.

4. The capacitance detection device according to claim 3, wherein The stopper (50) comprises a host transceiving antenna (51) electrically connected with the first wireless transceiver; the first end of the host transceiving antenna (51) is swingably arranged in the box (10); when the stopper (50) is in the recycling locking position, the second end of the host transceiving antenna (51) is located in the containing space (11) and abuts against the fixed frame (40); when the stopper (50) is in the outward swing unlocking position, the second end of the host transceiving antenna (51) swings out of the box (10).

5. The capacitance detection device according to any one of claims 1 to 4, characterized in that, The inductive measuring structure (30) further comprises an elongated piece (32) arranged on the measuring body (31); the elongated piece (32) is movably arranged on the measuring body (31) along the length direction of the measuring body (31).

6. The capacitance detection device according to claim 5, wherein The inductive measuring structure (30) further comprises an abutting locking piece (33) arranged between the elongated piece (32) and the measuring body (31) to fix the elongated piece (32).

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