Detection cabinet and power grid simulator

Abstract

The utility model discloses a detection cabinet and a power grid simulator. The detection cabinet comprises a cabinet body; the switching loop is arranged in the cabinet body and comprises an input end, an output end, a current detection assembly and a detection cable, the input end is used for being connected with the input cable, the output end is used for being connected with the output cable, and the detection cable is electrically connected between the input end and the output end and penetrates through the current detection assembly; the current detection assembly can generate a current detection signal based on current detection of the detection cable. According to the detection cabinet provided by the embodiment of the utility model, frequent threading is not needed when current detection is carried out, and damage to high-voltage cables and current detection related equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the field of high-voltage testing equipment, in particular to a testing cabinet and a power grid simulator. Background Art

[0002] In high-voltage test equipment such as power grid simulators, the output terminals are generally stacked with capacitors, resistors and other devices to improve the quality of power, and have voltage, current and other detection feedback functions. In practice, there are often cases where device protection is not in place, increasing the risk of electric shock or equipment discharge. At the same time, considering high-voltage safety and the performance limitations of the device itself, current detection requires high-voltage cables to pass through the current detection element.

[0003] Existing high-voltage test equipment generally installs the current detection element at the external high-voltage line. The above solution requires that the high-voltage cable needs to be passed through the current detection element every time the high-voltage line is connected. Since the outer diameter of the high-voltage cable shed is large, frequent threading will cause damage to the shed of the high-voltage cable and the internal through-hole of the current detection element, further causing serious damage such as arc discharge and breakdown. Utility Model Content

[0004] The utility model provides a detection cabinet and a power grid simulator, which no longer require frequent wire threading when performing current detection, thereby reducing damage to high-voltage cables and current detection-related equipment.

[0005] In a first aspect, an embodiment of the utility model provides a detection cabinet, which includes: a cabinet body; and a switching circuit, which is arranged in the cabinet body, the switching circuit includes an input end, an output end, a current detection component and a detection cable, the input end is used to connect an input cable, the output end is used to connect an output cable, the detection cable is electrically connected between the input end and the output end, and is arranged through the current detection component, and the current detection component can generate a current detection signal based on the current detection of the detection cable.

[0006] According to the aforementioned implementation of the first aspect of the utility model, the current detection component includes: a clamping component, fixedly installed in the cabinet; a current detection element, clamped in the clamping component, wherein the detection cable is passed through the clamping component and through the current detection element.

[0007] According to any of the aforementioned embodiments of the first aspect of the utility model, the current detection element is provided with an internal through hole for the detection cable to pass through, and the clamping assembly includes a first clamping plate and a second clamping plate clamped on opposite sides of the current detection element, and the first clamping plate and the second clamping plate are both provided with an opening for the detection cable to pass through, wherein the size of the opening is larger than the cross-sectional size of the detection cable and smaller than the size of the internal through hole.

[0008] According to any of the aforementioned embodiments of the first aspect of the utility model, the detection cabinet also includes: at least two capacitor components, which are arranged in the cabinet, each of the capacitor components is electrically connected to the transfer circuit, and each of the capacitor components can be selectively connected or disconnected with the transfer circuit; a voltage detection element, which is arranged in the cabinet, the voltage detection element is electrically connected to the transfer circuit, and the voltage detection element is used to perform voltage detection on the transfer circuit.

[0009] According to any of the aforementioned embodiments of the first aspect of the utility model, the frame includes a top support frame, a middle support frame and a bottom support frame, the input end is arranged on the top support frame, the current detection component is installed on the middle support frame, and the output end is arranged on the bottom support frame.

[0010] According to any of the aforementioned embodiments of the first aspect of the utility model, the cabinet body includes a frame, a partition and a cabinet door, the partition is fixedly connected to the frame, the cabinet door is movably connected to the frame, and the cabinet door and the partition together seal the internal space of the cabinet body when in a closed state.

[0011] According to any of the aforementioned embodiments of the first aspect of the utility model, an input wiring port and an output wiring port are provided on the partition, the input wiring port corresponds to the position of the input end, and the output wiring port corresponds to the position of the output end; and a heat dissipation port is provided on the cabinet door.

[0012] According to any of the aforementioned embodiments of the first aspect of the utility model, the detection cabinet also includes: a power display, which is arranged on the cabinet door and is used to display whether the equipment in the cabinet is energized; a safety lock, which is arranged on the cabinet door, and the safety lock is configured to lock the cabinet door in a closed state when the equipment in the cabinet is energized; a mechanical switch, which is arranged on the frame, and the mechanical switch generates different signals when the cabinet door is in an open state and a closed state respectively.

[0013] According to any of the aforementioned embodiments of the first aspect of the utility model, the detection cabinet also includes: a temperature and humidity detector, which is arranged in the cabinet and is used to detect the temperature and humidity in the cabinet; a heating device, which is arranged in the cabinet and is connected to the temperature and humidity detector by signal, and is used to heat the cabinet.

[0014] In a second aspect, an embodiment of the present utility model provides a power grid simulator, which includes a detection cabinet according to any of the aforementioned implementations of the first aspect of the present utility model.

[0015] According to the detection cabinet of the embodiment of the utility model, it includes a switching circuit located in the cabinet, wherein the switching circuit includes an input end, an output end, a current detection component and a detection cable. The detection cable is electrically connected between the input end and the output end, and is arranged to pass through the current detection component. The current detection component can generate a current detection signal based on the current detection of the detection cable. In the detection cabinet of the above embodiment, the switching circuit for current detection has been pre-installed in the cabinet. When the high-voltage cable needs to be detected for current, the input cable of the high-voltage cable is connected to the input end, and the output cable is connected to the output end. The current of the high-voltage cable can be detected by the current detection component. Therefore, it is no longer necessary to frequently thread the wires when performing current detection, thereby reducing damage to the high-voltage cable and current detection related equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of one embodiment of the detection cabinet of the utility model from one viewing angle;

[0018] Figure 2 It is a three-dimensional schematic diagram of another viewing angle of an embodiment of the detection cabinet of the utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of an embodiment of the detection cabinet of the utility model, with the cabinet part structure hidden;

[0020] Figure 4 This is a structural schematic diagram of a switching circuit in an embodiment of a detection cabinet of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of a current detection component in an embodiment of the detection cabinet of the utility model;

[0022] Figure 6 It is a half-section schematic diagram of the current detection component in one embodiment of the detection cabinet of the utility model;

[0023] Figure 7 It is a structural schematic diagram of an embodiment of a power grid simulator of the utility model.

[0024] Description of reference numerals:

[0025] 100-testing cabinet;

[0026] 110-cabinet body; 111-frame; 111a-top support frame; 111b-middle support frame; 111c-bottom support frame; 112-partition board; K1-input wiring port; K2-output wiring port; 113-cabinet door; 1131-heat dissipation port;

[0027] 120-switching circuit; 121-input end; 122-output end; 123-current detection component; 1231-clamping component; 1231a-first clamping plate; 1231b-second clamping plate; H2-opening; 1232-current detection element; H1-internal through hole; 124-detection cable; 1241-umbrella skirt;

[0028] 130-capacitor assembly;

[0029] 140- voltage detection element;

[0030] 150-charge indicator;

[0031] 160-safety lock;

[0032] 170-Mechanical switch;

[0033] 180-temperature and humidity detector;

[0034] 190- Heating device;

[0035] 900-output cable;

[0036] 1000-Power Grid Simulator.

[0037] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with the embodiments with reference to the accompanying drawings. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0040] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0041] The embodiment of the utility model provides a detection cabinet. Figure 1 , Figure 2 The three-dimensional schematic diagram of an embodiment of the detection cabinet of the utility model from different viewing angles. The detection cabinet 100 includes a cabinet body 110 and a switching circuit.

[0042] Figure 3 This is a three-dimensional schematic diagram of an embodiment of the detection cabinet of the utility model, with part of the cabinet structure hidden. Figure 4 The schematic diagram of the structure of the switching circuit in one embodiment of the detection cabinet of the utility model. The switching circuit 120 is arranged in the cabinet 110. The switching circuit 120 includes an input end 121, an output end 122, a current detection component 123 and a detection cable 124. The input end 121 is used to connect the input cable. The output end 122 is used to connect the output cable. The detection cable 124 is electrically connected between the input end 121 and the output end 122, and is arranged through the current detection component 123. The current detection component 123 can generate a current detection signal based on the current detection of the detection cable 124.

[0043] In some embodiments, the input terminal 121 and the output terminal 122 are spaced apart, and the current detection component 123 is located between the input terminal 121 and the output terminal 122. In some embodiments, the input terminal 121 includes an input terminal block, and the output terminal 122 includes an output terminal block.

[0044] According to the detection cabinet 100 of the embodiment of the utility model, it includes a switching circuit 120 located in the cabinet 110, wherein the switching circuit 120 includes an input end 121, an output end 122, a current detection component 123 and a detection cable 124. The detection cable 124 is electrically connected between the input end 121 and the output end 122, and is arranged through the current detection component 123. The current detection component 123 can generate a current detection signal based on the current detection of the detection cable 124. In the detection cabinet 100 of the above embodiment, the switching circuit 120 for current detection has been pre-installed in the cabinet 110. When the high-voltage cable needs to be current detected, the input cable of the high-voltage cable is connected to the input end 121, and the output cable is connected to the output end 122. The current of the high-voltage cable can be detected by the current detection component 123, so it is no longer necessary to frequently thread the wire when performing current detection, thereby reducing damage to the high-voltage cable and current detection related equipment.

[0045] In some embodiments, an shed 1241 is provided on the outer periphery of the detection cable 124 .

[0046] Figure 5 1 is a three-dimensional schematic diagram of a current detection component in an embodiment of a detection cabinet of the utility model. In some embodiments, the current detection component 123 includes a clamping component 1231 and a current detection element 1232. The clamping component 1231 is fixedly installed in the cabinet 110. The current detection element 1232 is clamped in the clamping component 1231. In this embodiment, the detection cable 124 is inserted into the clamping component 1231 and passes through the current detection element 1232.

[0047] Figure 6 This is a half-section schematic diagram of the current detection assembly in an embodiment of the detection cabinet of the utility model. In some embodiments, the current detection element 1232 is provided with an internal through hole H1 for the detection cable 124 to pass through. The clamping assembly 1231 includes a first clamping plate 1231a and a second clamping plate 1231b clamped on opposite sides of the current detection element 1232. Both the first clamping plate 1231a and the second clamping plate 1231b are provided with an opening H2 for the detection cable 124 to pass through.

[0048] In this embodiment, the size of the opening H2 is larger than the cross-sectional size of the detection cable 124 and smaller than the size of the internal through hole H1. Since the size of the opening H2 is larger than the cross-sectional size of the detection cable 124 and smaller than the size of the internal through hole H1, the stress generated by the detection cable 124 is mainly borne by the upper clamping plate and the lower clamping plate, thereby better protecting the current detection element 1232.

[0049] In some embodiments, the detection cabinet 100 further includes at least two capacitor components 130 disposed in the cabinet body 110 , each capacitor component 130 is electrically connected to the switching circuit 120 via a wire, and each capacitor component 130 can be selectively connected or disconnected with the switching circuit 120 .

[0050] In the above embodiment, the detection cabinet 100 includes at least two capacitor components 130, and each capacitor component 130 can be connected to the switching circuit 120 through a wire, so that the detection cabinet 100 can be well adapted to different voltages or other application requirements.

[0051] In this embodiment, the detection cabinet 100 includes two different capacitor components 130 for illustration. In other embodiments, according to the needs of the application scenario of the detection cabinet 100, three, four, five or other numbers of capacitor components 130 may be included.

[0052] In some embodiments, the detection cabinet 100 further includes a voltage detection element 140 . The voltage detection element 140 is disposed in the cabinet 110 , and is electrically connected to the switching circuit 120 through a wire. The voltage detection element 140 is used to detect the voltage of the switching circuit 120 .

[0053] In some embodiments, the cabinet 110 includes a frame 111, which includes a top support frame 111a, a middle support frame 111b, and a bottom support frame 111c. The input end 121 is disposed on the top support frame 111a, the current detection component 123 is installed on the middle support frame 111b, and the output end 122 is disposed on the bottom support frame 111c.

[0054] In the above embodiment, the input terminal 121 is located at the top of the cabinet 110, and the output terminal 122 is located at the bottom of the cabinet 110, so that the space and distance between the input terminal 121 and the output terminal 122 are sufficient for the layout of the detection cable 124 and meet the corresponding electrical safety distance requirements. The current detection component 123 is located in the middle of the cabinet 110 to ensure that the electrical safety distance from the input terminal 121 and the output terminal 122 is sufficient, so as to accurately provide the current detection signal required by the system.

[0055] In some embodiments, the cabinet 110 includes a frame 111, a partition 112, and a cabinet door 113. The partition 112 is fixedly connected to the frame 111. The cabinet door 113 is movably connected to the frame 111, and the cabinet door 113 and the partition 112 together seal the interior space of the cabinet 110 when the cabinet door 113 is closed.

[0056] In some embodiments, an input wiring port K1 and an output wiring port K2 are provided on the partition 112, the input wiring port K1 corresponds to the position of the input terminal 121, and the output wiring port K2 corresponds to the position of the output terminal 122. The input cable can pass through the input wiring port K1 to connect to the input terminal 121, and the output cable can pass through the output wiring port K2 to connect to the output terminal 122. In this embodiment, the input wiring port K1 is located in the top area of ​​the detection cabinet 100, and the output wiring port K2 is located in the bottom area of ​​the detection cabinet 100.

[0057] In some embodiments, a heat dissipation vent 1131 is disposed on the cabinet door 113 to naturally discharge the heat generated in the cabinet body 110 .

[0058] In some embodiments, the detection cabinet 100 further includes a live display 150. The live display 150 is disposed on the cabinet door 113 and is used to display whether the equipment in the cabinet 110 is live, so as to facilitate determining that the equipment in the cabinet 110 has no high voltage before opening the cabinet.

[0059] In some embodiments, the detection cabinet 100 further includes a safety lock 160. The safety lock 160 is disposed on the cabinet door 113. The safety lock 160 is configured to lock the cabinet door 113 in a closed state when the equipment in the cabinet 110 is energized, ensuring that the cabinet door 113 cannot be opened when the equipment in the cabinet 110 is energized.

[0060] In some embodiments, the detection cabinet 100 further includes a mechanical switch 170. The mechanical switch 170 is disposed on the frame 111, and the mechanical switch 170 generates different signals when the cabinet door 113 is in an open state and a closed state. By providing the mechanical switch 170 and allowing it to generate different feedback signals when the cabinet door 113 is in different states, it is possible to ensure that the cabinet door 113 is tightly closed in place, and at the same time, when the cabinet door 113 is opened, the mechanical switch 170 pops open to ensure that the cabinet body 110 cannot be powered on, thereby ensuring the safety of personnel operation.

[0061] In some embodiments, the detection cabinet 100 further includes a temperature and humidity detector 180 and a heating device 190. The temperature and humidity detector 180 is disposed in the cabinet 110 and is used to detect the temperature and humidity in the cabinet 100. The heating device 190 is disposed in the cabinet 110 and is connected to the temperature and humidity detector 180 by signal. The heating device 190 is used to heat the cabinet 110. By providing the temperature and humidity detector 180 and the heating device 190, the detection cabinet 100 can realize automatic monitoring and heating of the environment in the cabinet 110, so as to meet the environmental parameter requirements of the device.

[0062] An embodiment of the utility model also provides a power grid simulator. Figure 7 The schematic diagram of the structure of an embodiment of a power grid simulator of the utility model is shown in FIG. The power grid simulator 1000 includes a detection cabinet 100 of any of the aforementioned embodiments.

[0063] The detection cabinet 100 includes a cabinet 110 and a switching circuit. The switching circuit 120 is arranged in the cabinet 110. The switching circuit 120 includes an input end 121, an output end 122, a current detection component 123 and a detection cable 124. The input end 121 is used to connect an input cable. The output end 122 is used to connect an output cable. The detection cable 124 is electrically connected between the input end 121 and the output end 122, and is arranged through the current detection component 123. The current detection component 123 can generate a current detection signal based on the current detection of the detection cable 124.

[0064] After the detection cabinet 100 is pre-installed, it is placed in the power grid simulator 1000. Usually, the input cable has been pre-installed, and it is only necessary to connect the output cable 900 to the output terminal 122.

[0065] According to the power grid simulator of the embodiment of the utility model, it includes a detection cabinet 100, and the detection cabinet 100 includes a switching circuit 120 located in the cabinet 110, wherein the switching circuit 120 includes an input end 121, an output end 122, a current detection component 123 and a detection cable 124. The detection cable 124 is electrically connected between the input end 121 and the output end 122, and is arranged through the current detection component 123. The current detection component 123 can generate a current detection signal based on the current detection of the detection cable 124. In the detection cabinet 100 of the above embodiment, the switching circuit 120 for current detection has been pre-installed in the cabinet 110. When the high-voltage cable needs to be detected by current, the input cable of the high-voltage cable is connected to the input end 121, and the output cable is connected to the output end 122. The current of the high-voltage cable can be detected by the current detection component 123, so it is no longer necessary to frequently thread the wire when performing current detection, thereby reducing damage to the high-voltage cable and current detection related equipment.

[0066] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A detection cabinet, characterized in that: include: Cabinet; as well as A switching circuit is arranged in the cabinet, and the switching circuit includes an input end, an output end, a current detection component and a detection cable. The input end is used to connect the input cable, and the output end is used to connect the output cable. The detection cable is electrically connected between the input end and the output end and passes through the current detection component. The current detection component can generate a current detection signal based on the current detection of the detection cable.

2. The detection cabinet according to claim 1, characterized in that: The current detection component comprises: A clamping assembly, fixedly installed in the cabinet; A current detection element is clamped in the clamping assembly. Wherein, the detection cable is passed through the clamping assembly and passes through the current detection element.

3. The detection cabinet according to claim 2, characterized in that: The current detection element is provided with an internal through hole for the detection cable to pass through, and the clamping assembly includes a first clamping plate and a second clamping plate clamped on opposite sides of the current detection element, and the first clamping plate and the second clamping plate are both provided with an opening for the detection cable to pass through. Wherein, the size of the opening is larger than the cross-sectional size of the detection cable and smaller than the size of the internal through hole.

4. The detection cabinet according to any one of claims 1 to 3, characterized in that: Also includes: At least two capacitor components are arranged in the cabinet, each of the capacitor components is electrically connected to the switching circuit, and each of the capacitor components can be selectively connected or disconnected with the switching circuit; A voltage detection element is arranged in the cabinet, the voltage detection element is electrically connected to the switching circuit, and the voltage detection element detects the voltage of the switching circuit.

5. The detection cabinet according to claim 1, characterized in that: The cabinet includes a frame, which includes a top support frame, a middle support frame and a bottom support frame. The input end is arranged on the top support frame, the current detection component is installed on the middle support frame, and the output end is arranged on the bottom support frame.

6. The detection cabinet according to claim 1, characterized in that: The cabinet body comprises a frame, a partition and a cabinet door, wherein the partition is fixedly connected to the frame, and the cabinet door is movably connected to the frame. When the cabinet door is in a closed state, it and the partition together seal the inner space of the cabinet body.

7. The detection cabinet according to claim 6, characterized in that: The partition is provided with an input wiring port and an output wiring port, the input wiring port corresponds to the position of the input end, and the output wiring port corresponds to the position of the output end; The cabinet door is provided with a heat dissipation opening.

8. The detection cabinet according to claim 6, characterized in that: Also includes: A live indicator, arranged on the cabinet door, for indicating whether the equipment in the cabinet is live; A safety lock is provided on the cabinet door, and the safety lock is configured to lock the cabinet door in a closed state when the equipment in the cabinet is energized; A mechanical switch is arranged on the frame, and the mechanical switch generates different signals when the cabinet door is in an open state and a closed state respectively.

9. The detection cabinet according to claim 1, characterized in that: Also includes: A temperature and humidity detector is arranged in the cabinet and is used to detect the temperature and humidity in the cabinet; A heating device is arranged in the cabinet, the heating device is connected to the temperature and humidity detector signal, and the heating device is used to heat the cabinet.

10. A power grid simulator, characterized in that: Comprising the detection cabinet according to any one of claims 1 to 9.

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