Disclosure of Invention
The invention provides an electrical control cabinet with a self-current voltage detection function and a monitoring function, which is used for solving the technical problems that the electrical control cabinet contains a large number of electrical elements and electrical circuits, wherein a relay is the most frequently used element in the control cabinet, and after the relay is used for a long time, the phenomenon of short circuit or open circuit possibly occurs, so that the relay needs to be regularly overhauled, usually an operator uses a voltage or current measuring tool to overhaul and measure, but some places using the control cabinet are often unfavorable for the workers to overhaul the control cabinet frequently.
The invention provides an electrical control cabinet with a monitoring function, which comprises a cabinet body, wherein one side of the front end of the cabinet body is rotationally connected with a cabinet door, three buses are fixedly arranged in the cabinet body along the front-back direction, a relay mounting frame is fixedly arranged at the position of the lower end of each bus in the cabinet body, a plurality of relays are fixedly arranged at the front end of each relay mounting frame, the relays are uniformly distributed side by side, each relay is connected with the three buses through three sub-lines, the lower end of each relay is connected with three output lines side by side, and the output lines are erected at the lower end of each relay mounting frame along the vertical direction through a U-shaped frame; the output lines are cut off at positions between two side sections of the U-shaped frame, the output lines at two ends are connected through the conducting plates, first spring rods are fixedly connected between the conducting plates and the middle section of the U-shaped frame, a space moving device is erected in the cabinet body, and a voltage and current measuring module is arranged on the space moving device.
Preferably, the space moving device comprises a front sliding guide rail, a rear sliding guide rail, a left sliding guide rail, a right sliding guide rail and a vertical sliding guide rail, wherein the front sliding guide rail and the rear sliding guide rail are fixedly arranged on the left side and the right side of the inside of the cabinet body, the left sliding guide rail and the right sliding guide rail are connected with left sliding guide rails and right sliding guide rails in a sliding manner, a vertical sliding guide rail is fixedly arranged between the left sliding guide rail and the right sliding guide rails, a transverse moving screw rod is arranged on a rotating frame of the left sliding guide rail and the right sliding guide rail, a first motor for driving the transverse moving screw rod to rotate is fixedly connected on one side of the left sliding guide rail and the right sliding guide rail, a voltage current measuring module is fixedly connected on the vertical sliding guide rail, a vertical moving screw rod is rotatably arranged on the vertical sliding guide rail in the vertical direction, and a second motor for driving the vertical moving screw rod to rotate is fixedly connected with the upper end of the vertical sliding guide rail.
Preferably, the voltage and current measurement module comprises a vertical sliding plate, a current measurement device, a voltage measurement device and a deflection control device, wherein the vertical sliding plate is in sliding connection with the vertical sliding guide rail along the vertical direction and in threaded connection with the vertical moving screw rod, the upper end of the vertical sliding plate is provided with the voltage measurement device, the lower end of the vertical sliding plate positioned at the voltage measurement device is provided with the current measurement device, and the vertical sliding plate is also connected with the deflection control device for steering and fixing the voltage measurement device.
Preferably, the voltage measuring device comprises a device mounting plate, the device mounting plate is connected with the deflection control device, position conversion grooves are formed in the device mounting plate along the vertical direction, position conversion sliding blocks are symmetrically and slidingly connected in the position conversion grooves in the up-down direction, screw mounting grooves corresponding to the position conversion grooves are formed in the device mounting plate on two sides of the position conversion grooves, one position conversion screw is respectively and rotatably connected in the screw mounting grooves, the two position conversion screws are respectively and spirally connected with the two position conversion sliding blocks, the upper ends of the two position conversion screws are respectively and fixedly connected with a position conversion gear, the two position conversion gears are mutually meshed, the upper end of one position conversion gear is fixedly connected with a rotating disc, the position conversion sliding blocks are respectively and correspondingly provided with a sub-line at the upper end of the relay and an output line at the lower end of the relay, and the voltage measuring mechanism is arranged on the position conversion sliding blocks.
Preferably, the voltage measurement mechanism comprises a measurement fixing block, an extension detection rod, a fixed detection rod, a first detection spring and a voltage measurement lead, wherein the measurement fixing block is fixedly installed on the position conversion sliding block, one end of the position conversion sliding block, which is close to the relay, is fixedly connected with the measurement fixing block, the fixed detection rod is fixedly connected with the measurement fixing block, the extension detection rod is slidingly connected with the fixed detection rod, the first detection spring is arranged in the fixed detection rod, two ends of the first detection spring are respectively and fixedly installed on the extension detection rod and the measurement fixing block, a voltage measurement sensor is fixedly installed on the device installation plate, the voltage measurement lead is fixedly connected with the tail end of the extension detection rod, and the voltage measurement lead penetrates through the inside of the fixed detection rod and the measurement fixing block to be connected with the voltage measurement sensor.
Preferably, the deflection control device comprises a deflection control rod, a deflection control disc, a control spring and a locking disc, wherein the deflection control disc is fixedly connected with the device mounting plate, the vertical sliding plate is fixedly connected with the locking disc on the outer side of the deflection control disc, deflection control grooves are formed in the deflection control disc along the radial direction of the deflection control disc, the upper side and the right side of the locking disc are respectively provided with a locking groove, one deflection control rod is connected in the deflection control grooves in a sliding mode, the deflection control rod is inserted into one locking groove, and the control spring is fixedly connected between the deflection control rod and the bottom surface of the deflection control groove.
Preferably, the current measuring device comprises a current measuring plate, a current measuring screw rod and a current measuring screw sleeve, wherein the current measuring screw rod is in sliding connection with the vertical sliding plate along the front-back direction, the current measuring screw sleeve is in rotary connection with the vertical sliding plate, the current measuring screw sleeve is in threaded connection with the current measuring screw rod, and the current measuring screw rod is fixedly provided with the current measuring plate at one end facing the conductive plate.
Preferably, the upper and lower sides of the current measuring plate are conductive areas, the middle is an insulating area, a current measuring sensor is fixedly installed on the vertical sliding plate, the upper and lower conductive areas of the current measuring plate are respectively connected with a current measuring wire, and the current measuring wires are connected with the current measuring sensor.
Preferably, the left and right sliding guide rails are uniformly provided with a plurality of optical stop sensors.
The invention has the beneficial effects that:
(1) According to the invention, the voltage at two ends of the relay and the current passing through the relay are measured through the current-voltage module, and meanwhile, the position of the voltage-current measuring module can be changed through the space moving device, so that the current and the voltage of a plurality of relays are measured.
(2) The deflection control device is used for controlling the voltage measuring device to deflect and fix the direction, so that the voltage measuring module can measure the voltage between the sub-lines serving as the zero line and the fire line, and if no voltage difference between the zero line and the fire line is obtained, the phenomenon that the relay and the circuit are in short circuit can be described.
(3) In the process that the extended detection rod is contacted with the sub-line and the output line, the first detection spring can push the extended detection rod against the sub-line and the output line, and meanwhile hard impact between the extended detection rod and the sub-line and the output line can be avoided.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1, 3 and 4, the invention provides an electrical control cabinet with a monitoring function, which comprises a cabinet body 1, wherein one side of the front end of the cabinet body 1 is rotatably connected with a cabinet door 11, three buses 12 are fixedly arranged in the cabinet body 1 along the front-back direction, a relay mounting frame 13 is fixedly arranged at the position of the lower end of each bus 12 in the cabinet body 1, a plurality of relays 14 are fixedly arranged at the front end of each relay mounting frame 13, the relays 14 are uniformly distributed side by side, each relay 14 is connected with the three buses 12 through three sub-wires 19, the lower end of each relay 14 is connected with three output wires 15 side by side, the output wires 15 are vertically erected at the lower end of each relay mounting frame 13 through a U-shaped frame 16, the output wires 15 are cut off at positions between two side sections of the U-shaped frame 16, the output wires 15 at the two ends are connected through a conductive plate 17, a first spring rod 18 is fixedly connected between the conductive plate 17 and the middle section of the U-shaped frame, a current measuring device 2 is arranged in the cabinet body 1, and a current measuring device 3 is arranged at the space device.
It should be noted that, in the invention, the voltage at two ends of the relay 14 and the current passing through the relay 14 are measured by the current-voltage module, when the sub-line 19 and the output line 15 serving as a live wire are measured, the voltage between the sub-line 19 and the output line 15 is very large, and when no current exists, the phenomenon that the relay 14 is broken can be judged, and when the voltage difference at two ends of the relay 14 is completely absent, the phenomenon that the relay 14 is short-circuited can be judged, further, the relay 14 has no function of continuing to protect the circuit, the relay 14 should be replaced in time, and meanwhile, the position of the voltage-current measuring module 3 can be changed by the space moving device 2, so that the current and the voltage of a plurality of relays 14 are measured.
As shown in fig. 1, fig. 2 and fig. 10, the space moving device 2 includes a front sliding rail 21, a rear sliding rail 21, a left sliding rail 22 and a vertical sliding rail 23, the front sliding rail 21 and the rear sliding rail 21 are fixedly mounted on the left side and the right side of the interior of the cabinet body 1, the front sliding rail 21 and the rear sliding rail 21 are fixedly connected with the left sliding rail 22 and the right sliding rail 22, a pushing air rod 24 is fixedly mounted between the left sliding rail 22 and the rear side of the inner wall of the cabinet body 1, the left sliding rail 22 and the right sliding rail 22 are slidingly connected with the vertical sliding rail 23, a transverse moving screw 25 is rotatably mounted on the left sliding rail 22, a first motor 26 driving the transverse moving screw 25 to rotate is fixedly connected on one side of the left sliding rail 22 and the right sliding rail 22, the vertical sliding rail 23 is connected with the voltage current measuring module 3 along a vertical sliding connection, a vertical moving screw 27 is rotatably mounted on the vertical sliding rail 23 along the vertical direction, and a second screw 28 driving the vertical sliding rail 23 is fixedly connected with the upper end of the vertical sliding rail 23.
It should be noted that, when the position of the voltage and current measurement module 3 in the left-right direction is adjusted, the first motor 26 drives the transverse moving screw 25 to rotate, and the transverse moving screw 25 is in threaded connection with the vertical sliding guide rail 23, so as to drive the vertical sliding guide rail 23 to slide in the left-right direction and further adjust the position of the voltage and current measurement module 3 in the left-right direction, the second motor 28 drives the vertical moving screw 27 to move in the vertical direction and further adjust the position of the voltage and current measurement module 3 in the vertical direction, and the pushing air rod 24 drives the left-right sliding guide rail 22 to slide in the front-back direction and further control the contact and disconnection between the voltage and current measurement module 3 and the sub-line 19 and the output line 15, so as to measure the current and the voltage.
As shown in fig. 3 to 9, the voltage and current measurement module 3 includes a vertical sliding plate 31, a current measurement device 32, a voltage measurement device 33 and a deflection control device 34, the vertical sliding plate 31 is slidably connected with the vertical sliding rail 23 along a vertical direction and is in threaded connection with the vertical moving screw 27, the upper end of the vertical sliding plate 31 is provided with the voltage measurement device 33, the vertical sliding plate 31 is provided with the current measurement device 32 at the lower end of the voltage measurement device 33, and the vertical sliding plate 31 is further connected with the deflection control device 34 for turning and fixing the voltage measurement device 33.
When the voltage and current measurement module 3 measures the current and voltage of the line, the current measurement device 32 measures the voltage at both ends of the relay 14, the deflection and fixing of the voltage measurement device 33 are controlled by the deflection control device 34, so that the voltage measurement module can measure the voltage between the sub-lines 19 serving as the zero line and the live line, if no voltage difference between the zero line and the live line is obtained, the phenomenon that the relay 14 and the circuit are short-circuited can be described, the safety is greatly influenced, even the pipe wall circuit is required, and the damaged relay 14 and related electric appliances are maintained and replaced.
As shown in fig. 3, 5 and 6, the voltage measuring device 33 includes a device mounting plate 331, the device mounting plate 331 is connected to the deflection control device 34, the device mounting plate 331 is provided with a position changing slot 3311 along a vertical direction, the position changing slot 3311 is symmetrically and slidingly connected with a position changing slide block 332 in an up-down direction, screw mounting slots 3312 corresponding to the position changing slot 3311 are provided at two sides of the position changing slot 3311, one position changing screw 333 is rotatably connected to each of the two screw mounting slots 3312, the two position changing screws 333 are respectively in threaded connection with the two position changing slide blocks 332, the upper ends of the two position changing screws 333 are respectively fixedly connected with a position changing gear 334, the two position changing gears 334 are meshed with each other, the upper end of one position changing gear 334 is fixedly connected with a rotating disk 335, the position changing slide block 332 respectively corresponds to the sub-line 19 at the upper end of the relay 14 and the output line 15 at the lower end of the relay 14, and the voltage measuring mechanism 336 is mounted on the position changing slide block 332.
When the voltage measuring device 33 is adjusted to be suitable for the relay 14, the rotating disc 335 is rotated, the rotating disc 335 drives the conversion gears fixedly connected with the rotating disc 335, and the two conversion gears are meshed with each other to generate rotation in opposite directions, so that the two position conversion screws 333 generate rotation in opposite directions, the two position conversion sliders 332 generate movement in opposite directions, and the voltage measuring mechanism 336 measures the voltage between the sub-line 19 and the output line 15 at two ends of the relay 14.
As shown in fig. 3 and 5, the voltage measurement mechanism 336 includes a measurement fixed block 3361, an extension detection rod 3362, a fixed detection rod 3363, a first detection spring 3364, and a measurement voltage wire 3365, where the measurement fixed block 3361 is fixedly mounted on the position conversion slide 332, one end of the position conversion slide 332 near the relay 14 is fixedly connected with the measurement fixed block 3361, the measurement fixed block 3361 is fixedly connected with the fixed detection rod 3363, the fixed detection rod 3363 is slidingly connected with the extension detection rod 3362, a first detection spring 3364 is disposed in the fixed detection rod 3363, two ends of the first detection spring 3364 are fixedly mounted on the extension detection rod 3362 and the measurement fixed block 3361, a voltage measurement sensor 337 is fixedly mounted on the device mounting plate 331, and the end of the extension detection rod 3362 is fixedly connected with the measurement voltage wire 3365, and the measurement voltage wire 3365 is connected with the voltage measurement sensor 337 through the inside of the fixed detection rod 3363 and the measurement fixed block 3361.
In the process of measuring the voltage by the voltage measuring mechanism 336, the extension detecting rod 3362 is respectively contacted with the sub-line 19 and the output line 15 at two ends of the relay 14, the extension detecting rod 3362 is connected with the voltage measuring sensor 337 by voltage guiding, the voltage measuring sensor 337 transmits a voltage signal to a control terminal operated by a worker when obtaining the voltage information, and the first detecting spring 3364 can push the extension detecting rod 3362 against the sub-line 19 and the output line 15 in the process of contacting the extension detecting rod 3362 with the sub-line 19 and the output line 15, and meanwhile, hard impact between the extension detecting rod 3362 and the sub-line 19 and the output line 15 can be avoided.
As shown in fig. 7 and 8, the deflection control device 34 includes a deflection control lever 341, a deflection control plate 342, a control spring 343 and a locking plate 344, the deflection control plate 342 is fixedly connected with the device mounting plate 331, the vertical sliding plate 31 is fixedly connected with a locking plate 344 on the outer side of the deflection control plate 342, the deflection control plate 342 is radially provided with a deflection control groove 3421, the upper side and the right side of the locking plate 344 are respectively provided with a locking groove 3441, the deflection control groove 3421 is slidingly connected with a deflection control lever 341, the deflection control lever 341 is inserted into one of the locking grooves 3441, and a control spring 343 is fixedly connected between the deflection control lever 341 and the bottom surface of the deflection control groove 3421.
When the voltage measuring device 33 is changed from the vertical state to the horizontal state by the deflection control device 34, the deflection control lever 341 is pulled out of the upper locking groove 3441, the device mounting plate 331 is turned to change the device mounting plate 331 from the horizontal state to the vertical state, and the deflection control lever 341 is inserted into the locking groove 3441 located on the right side by the pressing force of the control spring 343, so that the device mounting plate 331 is fixed in the horizontal state, and the voltage between the sub-lines 19 serving as the neutral line and the live line can be measured by the voltage measuring device 33.
As shown in fig. 3,4, 7 and 9, the current measuring device 32 includes a current measuring plate 321, a current measuring screw 322 and a current measuring screw sleeve 323, the current measuring screw 322 is slidably connected with the vertical sliding plate 31 along the front-back direction, the current measuring screw sleeve 323 is rotatably connected with the vertical sliding plate 31, the current measuring screw sleeve 323 is in threaded connection with the current measuring screw 322, one end of the current measuring screw 322 facing the conductive plate 17 is fixedly provided with the current measuring plate 321, the upper side and the lower side of the current measuring plate 321 are conductive areas, an insulating area is arranged in the middle, a current measuring sensor 324 is fixedly arranged on the vertical sliding plate 31, the upper conductive area and the lower conductive area of the current measuring plate 321 are respectively connected with a current measuring wire 325, and the current measuring wire 325 is connected with the current measuring sensor 324.
In the process of measuring the current flowing through the relay 14, the current measuring plate 321 extrudes the conductive plate 17, and the current measuring sensor 324 is connected to the output line 15 through the insulation area on the current measuring plate 321 and the current measuring wire 325, so as to measure the current, and the current measuring sensor 324 transmits a current data signal to the control terminal.
As shown in fig. 1 and 2, the plurality of optical stop sensors 4 are uniformly arranged on the left and right sliding guide rails 22.
When the vertical slide rail 23 moves to a position corresponding to the optical stopper sensor 4, the second motor 28 stops rotating, so that the current-voltage measuring mechanism 336 exactly corresponds to the sub-line 19 and the output line 15 on the relay 14.
The working principle of the invention is that the invention measures the voltage at two ends of the relay 14 and the current passing through the relay 14 through the current-voltage module, when measuring the sub-line 19 and the output line 15 which serve as a live wire, the voltage between the sub-line 19 and the output line 15 is very large, and when no current exists, the phenomenon that the relay 14 is broken can be judged, and when the two ends of the relay 14 have no voltage difference, the phenomenon that the relay 14 is short-circuited can be judged, thereby indicating that the relay 14 has no function of continuing to protect a circuit, and simultaneously, the position of the voltage-current measuring module 3 can be changed through the space moving device 2, so that the current and the voltage of a plurality of relays 14 are measured, When the voltage and current measuring module 3 measures the current and voltage, the current measuring device 32 measures the current of the circuit, the voltage measuring device 33 measures the voltage at two ends of the relay 14, the deflection and fixing of the voltage measuring device 33 are controlled by the deflection control device 34, so that the voltage measuring module measures the voltage between the sub-wires 19 serving as the zero line and the fire line, if no voltage difference between the zero line and the fire line is obtained, the phenomenon that the relay 14 and the circuit are short-circuited can be indicated, the safety is greatly influenced, even a pipe wall circuit is needed, And repair and replacement of the damaged relay 14 and related electric appliances, when the voltage measuring device 33 is adjusted to be suitable for the relay 14, the rotating disc 335 is rotated, the rotating disc 335 drives the conversion gears fixedly connected with the rotating disc 335, the two conversion gears are meshed with each other to generate opposite rotation, and further the two position conversion screws 333 generate opposite rotation, so that the two position conversion sliding blocks 332 generate opposite movement, and the voltage measuring mechanism 336 measures the voltage between the sub-line 19 and the output line 15 at two ends of the relay 14, and in the process of measuring the voltage by the voltage measuring mechanism 336, The extension detection rod 3362 is respectively contacted with the sub-line 19 and the output line 15 at two ends of the relay 14, the extension detection rod 3362 is connected with the voltage measurement sensor 337 through voltage guidance, the voltage measurement sensor 337 transmits a voltage signal to a control terminal operated by a worker when obtaining voltage information, the first detection spring 3364 can push the extension detection rod 3362 against the sub-line 19 and the output line 15 in the process of contacting the extension detection rod 3362 with the sub-line 19 and the output line 15, and meanwhile, hard impact between the extension detection rod 3362 and the sub-line 19 and the output line 15 can be avoided, During the process of measuring the current flowing through the relay 14, the current measuring plate 321 extrudes the conductive plate 17, the current measuring sensor 324 is communicated with the output line 15 through the insulation area on the current measuring plate 321 and the current measuring lead 325, the current is measured, the current measuring sensor 324 transmits a current data signal to the control terminal, during the process, when the position of the voltage current measuring module 3 in the left-right direction is adjusted, the first motor 26 drives the transverse moving screw 25 to rotate, the transverse moving screw 25 is in threaded connection with the vertical sliding guide rail 23, thereby driving the vertical sliding guide rail 23 to slide in the left-right direction and adjusting the position of the voltage current measuring module 3 in the left-right direction, The second motor 28 drives the vertical moving screw 27 to move in the vertical direction, so that the position of the voltage and current measuring module 3 in the vertical direction is adjusted, the left and right sliding guide rail 22 is driven to slide in the front and back direction by the pushing air rod 24, and the voltage and current measuring module 3 is controlled to be contacted with and disconnected from the sub-line 19 and the output line 15, so that the current and the voltage are measured.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing examples, and that the foregoing description and description are merely illustrative of the principles of this invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.