Electric auxiliary device for handcart of switch cabinet

Abstract

The invention relates to a switch cabinet handcart electric auxiliary device which is applied to a switch cabinet handcart provided with a crank opening. The auxiliary device comprises a shell, an adsorption component and a first controller, the shell is provided with a triangular front plate and a triangular rear plate, the front plate and the rear plate are oppositely arranged, and the front plate is close to the switch cabinet handcart; the adsorption parts are positioned at three vertex angles of the front plate; the first controller is located in the shell, and the first controller is electrically connected with the adsorption component; and the first controller is at least used for controlling the adsorption part to be adsorbed on the surface of the switch cabinet handcart based on the hole-aligning working mode. Thus, the front plate and the rear plate in the shell are triangular, the firmness of the shell is guaranteed, meanwhile, the adsorption parts are arranged at the three vertex angles of the front plate through the structure, the adsorption parts are controlled to be adsorbed to the surface of the switch cabinet handcart in a hole alignment working mode, the electric auxiliary device can be better fixed, and the safety of the switch cabinet handcart is improved. And the stability and the safety during hole alignment work are further improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power equipment transmission and distribution, and particularly to an electric auxiliary device for a switch cabinet trolley. Background Art

[0002] A high-voltage switch cabinet is an electrical device applied in a power system, especially in a medium- and high-voltage distribution network. For existing high-voltage switch cabinets, there is usually a crank hole for inserting a crank. Inside the crank hole, there is a set of precise mechanical transmission systems (such as gears or connecting rods). By manually or electrically controlling the rotation of the crank, torque can be transmitted to the switch cabinet trolley to realize the "inward rotation" or "outward rotation" movement of the trolley.

[0003] Currently, in order to pursue convenient operation, the scheme of controlling the rotation of the crank through an electric operating device is widely applied. However, when the rotation of the crank is electrically controlled, the crank is very easy to fall off, which will cause arcing in the switch cabinet, damage the switch cabinet body, and in severe cases, the high-voltage switch cabinet will explode, seriously endangering the personal safety of on-site personnel and the safety of equipment. Summary of the Invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides an electric auxiliary device for a switch cabinet trolley.

[0005] The present disclosure provides an electric auxiliary device for a switch cabinet trolley, which is applied to the switch cabinet trolley. The switch cabinet trolley is provided with a crank hole; the auxiliary device includes: a housing, an adsorption component, and a first controller;

[0006] The housing is provided with a triangular front plate and a rear plate. The front plate and the rear plate are arranged opposite to each other, and the front plate is close to the switch cabinet trolley; the adsorption components are located at the three vertices of the front plate; the first controller is located inside the housing, and the first controller is electrically connected to the adsorption components;

[0007] The first controller is at least used to control the adsorption components to adsorb on the surface of the switch cabinet trolley based on the hole-based working mode.

[0008] Optionally, the electric auxiliary device for the switch cabinet trolley further includes a motor and a docking component;

[0009] The motor is located inside the housing, and the motor is electrically connected to the first controller; one end of the docking component is detachably connected to the motor, and the other end penetrates through the front plate and extends out;

[0010] The docking component is used to insert into the crank hole of the switch cabinet trolley; the motor is used to be controlled to drive the docking component to rotate or stop.

[0011] Optionally, the electric auxiliary device for the switch cabinet trolley further includes a telescopic screw, a nut, and a universal joint;

[0012] The front plate and the rear plate are arranged flush with each other, and the nut is fixed at each vertex of the front plate and the rear plate; the telescopic screw passes through the nuts provided oppositely on the rear plate and the front plate, and the telescopic screw is threadedly connected with the nuts; one end of the telescopic screw is fixed to the adsorption component through the universal joint.

[0013] Optionally, the electric auxiliary device for the switch cabinet trolley further includes a main power supply;

[0014] The main power supply is electrically connected to the first controller.

[0015] Optionally, the electric auxiliary device for the switch cabinet trolley further includes a motor control circuit;

[0016] The first controller is electrically connected to the motor through the motor control circuit;

[0017] The motor control circuit is used to control the rotation or stop of the motor.

[0018] Optionally, the motor control circuit includes a voltage polarity regulation module and a switch module;

[0019] The voltage polarity regulation module is connected to the motor through the switch module.

[0020] Optionally, the voltage polarity regulation module includes a first sub-power supply, a first relay, a second relay, and a plurality of diodes;

[0021] The first sub-power supply, the first relay, and the second relay are connected in series in sequence to form a loop; some of the diodes are connected in series between the first sub-power supply and the first relay, and the other part of the diodes are connected in series between the first sub-power supply and the second relay.

[0022] Optionally, the switch module includes a second sub-power supply, a first contactor, and a second contactor;

[0023] The first sub-power supply, the first relay, and the first contactor are connected in series in sequence to form a loop; the first sub-power supply, the second relay, and the second contactor are connected in series in sequence to form a loop; the first contactor and the second contactor are respectively connected to the motor, and the first contactor and the second contactor are respectively connected to the second sub-power supply.

[0024] Optionally, the electric auxiliary device for the switch cabinet trolley further includes a second controller; the second controller is provided with a plurality of touch buttons;

[0025] The second controller is communicatively connected to the first controller; the second controller is configured to control the motor to rotate or stop based on an external trigger of the touch button.

[0026] Optionally, the switch cabinet trolley electric auxiliary device further includes an insulator;

[0027] The insulator is disposed between the adsorption member and the telescopic screw.

[0028] The technical solution provided by the embodiments of the present disclosure has the following advantages compared with the prior art:

[0029] The switch cabinet trolley electric auxiliary device provided by the embodiments of the present disclosure is applied to a switch cabinet trolley, and the switch cabinet trolley is provided with a crank handle opening; the auxiliary device includes: a housing, an adsorption member, and a first controller; the housing is provided with a front plate and a rear plate in a triangular shape, the front plate and the rear plate are oppositely arranged, and the front plate is close to the switch cabinet trolley; the adsorption member is located at three apex angles of the front plate; the first controller is located inside the housing, and the first controller is electrically connected to the adsorption member; the first controller is at least configured to control the adsorption member to adsorb on the surface of the switch cabinet trolley based on the hole alignment working mode. In this way, by setting the shapes of the front plate and the rear plate in the housing to be triangular, the firmness of the housing is ensured. At the same time, by using this structure to arrange the adsorption member at three apex angles of the front plate and controlling the adsorption member to adsorb on the surface of the switch cabinet trolley in the hole alignment working mode, the electric auxiliary device can be better fixed, further improving the stability and safety during the hole alignment operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The drawings herein are incorporated into the specification and constitute a part of this specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1 It is a schematic structural diagram of a switch cabinet trolley electric auxiliary device provided by an embodiment of the present disclosure;

[0033] Figure 2 It is a schematic structural diagram of another switch cabinet trolley electric auxiliary device provided by an embodiment of the present disclosure;

[0034] Figure 3 It is a schematic structural diagram of the connection principle of a front plate and a rear plate provided by an embodiment of the present disclosure;

[0035] Figure 4 A structural schematic diagram of another electric auxiliary device for a switch cabinet handcart provided by an embodiment of the present disclosure;

[0036] Figure 5 A block diagram structural schematic diagram of an electric auxiliary device for a switch cabinet handcart provided by an embodiment of the present disclosure;

[0037] Figure 6 A structural schematic diagram of the connection principle of an adsorption component provided by an embodiment of the present disclosure;

[0038] Figure 7 A structural schematic diagram of a motor control circuit provided by an embodiment of the present disclosure;

[0039] Figure 8 A structural schematic diagram of another motor control circuit provided by an embodiment of the present disclosure.

[0040] Among them, 01 is the switch cabinet handcart; 02 is the crank handle port; 110 is the housing; 111 is the front plate; 112 is the rear plate; 120 is the adsorption component; 130 is the first controller; 140 is the motor; 150 is the docking component; 160 is the telescopic screw; 170 is the nut; 180 is the universal joint; 210 is the main power supply; 220 is the motor control circuit; 221 is the voltage polarity regulation module; 222 is the switch module; 230 is the second controller; 231 is the touch button; 310 is the mobile auxiliary adjustment trolley; 311 is the flatbed cart; 312 is the automatic lifting mechanism. Detailed implementation manners

[0041] In order to more clearly understand the above objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.

[0042] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure may be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0043] The electric auxiliary device for a switch cabinet handcart provided by an embodiment of the present disclosure will be described below with reference to the accompanying drawings by way of example.

[0044] Figure 1 A structural schematic diagram of an electric auxiliary device for a switch cabinet handcart provided by an embodiment of the present disclosure, referring to Figure 1, the auxiliary device is applied to the switch cabinet trolley 01. The switch cabinet trolley 01 is provided with a crank handle opening 02. The auxiliary device includes: a housing 110, an adsorption component 120, and a first controller 130; the housing 110 is provided with a triangular front plate 111 and a rear plate 112. The front plate 111 and the rear plate 112 are arranged oppositely, and the front plate 111 is close to the switch cabinet trolley 01; the adsorption component 120 is located at the three apex angles of the front plate 111; the first controller 130 is located inside the housing 110, and the first controller 130 is electrically connected to the adsorption component 120; the first controller 130 is at least used to control the adsorption component 120 to adsorb on the surface of the switch cabinet trolley 01 based on the hole alignment working mode.

[0045] Among them, the crank handle opening 02 is used to insert a crank handle or other mechanical transmission components, as long as it can transfer torque to the switch cabinet trolley 01 to drive its movement.

[0046] Among them, the hole alignment working mode refers to the mode in which a mechanical transmission component is inserted into the crank handle opening 02 to drive the switch cabinet trolley 01 to work, including but not limited to driving the switch cabinet trolley 01 to move into the trolley compartment (i.e., cranking in), or driving the switch cabinet trolley 01 to move out of the trolley compartment (i.e., cranking out).

[0047] Specifically, by setting the front plate 111 and the rear plate 112 of the housing 110 to be triangular, the housing 110 can form a firm structure. On the basis of this design structure, by setting the adsorption component 120 at the three apex angles of the front plate 111, it can be realized that in the hole alignment working mode, the adsorption component 120 firmly adsorbs on the surface of the switch cabinet trolley 01. Exemplarily, the adsorption component 120 can be an electromagnet or other structures that form an adsorption ability through electric control, which is not limited here.

[0048] It should be noted that for the electric auxiliary device of the switch cabinet trolley provided in the embodiments of the present disclosure, by setting the front plate 111 and the rear plate 112 of the housing 110 to be triangular, a triangular prism structure can be formed. Compared with the solution of setting the adsorption component 120 on a cuboid structure or other shaped structures, the stability, reliability, and tolerance of the adsorption of the adsorption component 120 by using the triangular prism structure in the embodiments of the present disclosure are stronger, effectively avoiding the phenomenon of handle detachment that easily occurs in general auxiliary devices, and ensuring the stability and safety of the operation process.

[0049] Exemplarily, the material of the housing 110 can be fiberglass or other insulating materials to improve the effect of electrical isolation, which can be specifically set according to actual installation requirements and is not limited here.

[0050] The electric auxiliary device for a switchgear trolley provided by an embodiment of the present disclosure includes: a housing 110, an adsorption component 120, and a first controller 130; the housing 110 is provided with a front plate 111 and a rear plate 112 in a triangular shape, the front plate 111 and the rear plate 112 are arranged opposite to each other, and the front plate 111 is close to the switchgear trolley 01; the adsorption component 120 is located at the three top corners of the front plate 111; the first controller 130 is located inside the housing 110, and the first controller 130 is electrically connected to the adsorption component 120; the first controller 130 is at least used to control the adsorption component 120 to adsorb on the surface of the switchgear trolley 01 based on the hole alignment working mode. In this way, by setting the shapes of the front plate 111 and the rear plate 112 in the housing 110 to be triangular, the firmness of the housing 110 is ensured. At the same time, using this structure to arrange the adsorption component 120 at the three top corners of the front plate 111 and controlling the adsorption component 120 to adsorb on the surface of the switchgear trolley 01 in the hole alignment working mode can better fix the electric auxiliary device, further improving the stability and safety during the hole alignment operation.

[0051] In some embodiments, Figure 2 is a schematic structural diagram of another electric auxiliary device for a switchgear trolley provided by an embodiment of the present disclosure. On the basis of Figure 1 , with reference to Figure 2 , the electric auxiliary device further includes a motor 140 and a docking component 150; the motor 140 is located inside the housing 110, and the motor 140 is electrically connected to the first controller 130; one end of the docking component 150 is detachably connected to the motor 140, and the other end penetrates through the front plate 111 and extends out; the docking component 150 is used to insert into the crank handle opening 02 of the switchgear trolley 01; the motor 140 is used to be controlled to drive the docking component 150 to rotate or stop.

[0052] Exemplarily, in the hole alignment working mode, the first controller 130 can control the motor 140 to rotate forward or backward. For example, when the motor 140 is controlled to rotate forward, the motor 140 can drive the docking component 150 to rotate forward, and then the docking component 150 can drive a driving component in the switchgear trolley 01, such as a transmission rod, to rotate forward through its own forward rotation, so that the transmission rod can drive the switchgear trolley 01 to move into the trolley chamber based on this. Or, when the motor 140 is controlled to rotate backward, the motor 140 can drive the docking component 150 to rotate backward, and then the docking component 150 can drive a driving component in the switchgear trolley 01, such as a transmission rod, to rotate backward through its own backward rotation, so that the transmission rod can drive the switchgear trolley 01 to move out of the trolley chamber based on this.

[0053] In this way, the electrified operation of the position movement of the switchgear trolley 01 is realized, replacing manual operation and improving the operation convenience. In addition, the correspondence relationship between the rotation direction of the motor 140 and the movement position of the switchgear trolley 01 is not limited herein.

[0054] It can be understood that when maintenance and inspection of the switchgear trolley 01 are required, the first controller 130 can control the motor 140 to stop rotating, so that the docking component 150 also stops. There is no torque transmitted to the transmission rod in the switchgear trolley 01, and the switchgear trolley 01 realizes an emergency stop for professional maintenance.

[0055] Exemplarily, the motor 140 can be a reduction motor, including but not limited to, a stepping reduction motor, a servo reduction motor, etc., and it is ensured that the rotation speed of the motor 140 is not too fast or too slow to avoid the arcing phenomenon caused in the case of being too slow. For example, the rotation speed of the motor can be selected as 80 revolutions per minute, and it can be set according to the actual requirements of the electric auxiliary device of the switchgear trolley, and is not limited here.

[0056] In some embodiments, Figure 3 is a schematic structural diagram of the connection principle of a front plate and a rear plate provided by an embodiment of the present disclosure. On the basis of Figure 1 and Figure 2 , with reference to Figure 3 , the electric auxiliary device of the switchgear trolley further includes a telescopic screw 160, a nut 170, and a universal joint 180; the front plate 111 and the rear plate 112 are flush with each other, and nuts 170 are fixed at each vertex of the front plate 111 and the rear plate 112; the telescopic screw 160 passes through the relatively arranged nuts 170 of the rear plate 112 and the front plate 111, and the telescopic screw 160 is threadedly connected with the nut 170; one end of the telescopic screw 160 is fixed to the adsorption component 120 through the universal joint 180.

[0057] Among them, the universal joint 180 allows the telescopic screw 160 connected thereto to rotate within a certain angle range to drive the entire housing 110 to move.

[0058] Specifically, assuming that the adsorption component 120 has been adsorbed on the surface of the switchgear trolley 01, by setting the nut fixed to the entire housing 110, the telescopic screw 160 passes through the relatively arranged nuts 170 of the rear plate 112 and the front plate 111, and the telescopic screw 160 is threadedly connected with the nut 170. When the telescopic screw 160 is manually rotated, the nut 170 threadedly connected with the telescopic screw 160 will automatically move in the direction close to the adsorption component 120 or automatically move in the direction away from the adsorption component 120, thereby driving the entire housing 110 to move accordingly, so as to adjust the hole depth of the docking component 150 and facilitate the automatic alignment of the docking component 150 with the hole position.

[0059] Exemplarily, Figure 3The schematic diagram of the comparison structure before and after the rotation and telescoping of the telescoping screw 160 is shown. For the structure of the telescoping screw 160 before rotation, the distance between the entire housing 110 and the switchgear handcart 01 is relatively far, so the depth of the alignment hole of the docking component 150 is relatively shallow. For the structure of the telescoping screw 160 after rotation, the distance between the entire housing 110 and the switchgear handcart 01 is relatively close, so the depth of the alignment hole of the docking component 150 is relatively deep.

[0060] Exemplarily, in the embodiments of the present disclosure, when the telescoping screw 160 is rotated to the right, the nut 170 can be set to move along the direction close to the adsorption component 120, or when the telescoping screw 160 is rotated to the left, the nut 170 can also be set to move along the direction close to the adsorption component 120, which can be set according to the actual needs of the switchgear handcart electric auxiliary device and is not limited herein.

[0061] Exemplarily, the nut 170 can be fixed inside the front plate 111 or the rear plate 112 to improve the aesthetics of the housing 110. It is not difficult to understand that on the basis of this design, while the telescoping screw 160 passes through the rear plate 112 and the front plate 111, it forms a threaded connection with the oppositely arranged nut.

[0062] Thus, by utilizing the connection relationship between the telescoping screw 160, the nut 170, the universal joint 180, and the adsorption component 120, the depth of the alignment hole of the docking component 150 can be flexibly adjusted, so that when the alignment effect of the docking component 150 is not good, such as when the crank handle opening cannot be inserted, the depth of the alignment hole of the docking component 150 can be changed in time until the docking component 150 is accurately inserted into the crank handle opening, effectively improving the alignment effect of the docking component 150.

[0063] In some embodiments, Figure 4 is a schematic structural diagram of another switchgear handcart electric auxiliary device provided by the embodiments of the present disclosure, where Figure 4 Figure (a) in it is a three-dimensional structural diagram, Figure 4 Figure (b) in it is a front view structural diagram of the rear plate, Figure 5 is a schematic block diagram of a switchgear handcart electric auxiliary device provided by the embodiments of the present disclosure. Combining Figure 4 and Figure 5 , the switchgear handcart electric auxiliary device further includes a main power supply 210; the main power supply 210 is electrically connected to the first controller 130.

[0064] Among them, the main power supply 210 is a power supply for supplying power to the entire switch cabinet trolley electric auxiliary device, and both it and the first controller 130 are arranged on the inner surface of the rear plate 112. Specifically, the main power supply 210 is connected to an external power supply. After receiving the externally input AC voltage, such as the 220V voltage of the commercial power, it converts this AC voltage into a DC voltage of a preset magnitude, such as converting the 220V voltage into a 24V voltage, so as to provide the required voltage for each electrical component (such as the first controller 130) in the electric auxiliary device.

[0065] Exemplarily, Figure 6 FIG. 5 is a schematic structural diagram of the connection principle of an adsorption component provided by an embodiment of the present disclosure, which can be regarded as the control circuit diagram of the adsorption component. Here, taking the adsorption component 120 as an electromagnet as an example, the figure shows that the control circuit of the adsorption component includes a main power supply 210 (denoted by B1), a toggle switch SW, a current-limiting resistor R1, an indicator lamp D1, and three adsorption components 120; the three adsorption components 120 are all connected to the main power supply 210 through the toggle switch SW, and the current-limiting resistor R1 and the indicator lamp D1 are connected in series and then connected to the above loop.

[0066] Among them, the current-limiting resistor R1 is used to limit the current flowing into the indicator lamp D1 to avoid damage to the indicator lamp D1 due to excessive current. Exemplarily, the resistance value of the current-limiting resistor R1 can be 5.1KΩ, and its resistance value can be set according to the actual current-limiting requirement, and it is not limited here.

[0067] Among them, the indicator lamp D1 is used for live indication (or adsorption indication) based on the on / off state of the toggle switch SW. Specifically, when the first controller 130 controls the toggle switch SW to close, each adsorption component 120 will be energized, and then the adsorption component 120 can generate a magnetic force based on the principle of electromagnetic induction and adsorb to the surface of the switch cabinet trolley 01. At this time, the indicator lamp D1 will light up to indicate that the adsorption component 120 is in a live state or an adsorption state. On the contrary, when the first controller 130 controls the toggle switch SW to open, each adsorption component 120 will be de-energized, then the adsorption component 120 has no magnetic force and cannot adsorb to the surface of the switch cabinet trolley 01. At this time, the indicator lamp D1 does not light up to indicate that the adsorption component 120 is in a de-energized state or an un-adsorbed state.

[0068] In some embodiments, continue to refer to Figure 5 , the switch cabinet trolley electric auxiliary device further includes a motor control circuit 220; the first controller 130 is electrically connected to the motor 140 through the motor control circuit 220; the motor control circuit 220 is used to control the rotation or stop of the motor 140.

[0069] Specifically, the first controller 130 sends a rotation instruction to the motor control circuit 220, and the motor control circuit 220 responds to the rotation instruction to control the motor 140 to rotate. Alternatively, the first controller 130 sends a stop instruction to the motor control circuit 220, and the motor control circuit 220 responds to the stop instruction to control the motor 140 to stop working. It can be understood that the rotation instruction may include a forward rotation instruction and a reverse rotation instruction, so as to control the forward rotation of the motor 140 through the forward rotation instruction and control the reverse rotation of the motor 140 through the reverse rotation instruction.

[0070] Exemplarily, the motor control circuit 220 may be disposed on the inner surface of the rear plate, and its specific installation position is not limited herein.

[0071] In some embodiments, with continued reference to Figure 5 , the motor control circuit 220 includes a voltage polarity regulation module 221 and a switch module 222; the voltage polarity regulation module 221 is connected to the motor 140 through the switch module 222.

[0072] Among them, the voltage polarity regulation module 221 is a module for regulating the voltage polarity, and the voltage polarity refers to the positive and negative of the voltage. Exemplarily, after receiving the 24V voltage input from the main power supply, the voltage polarity regulation module 221 converts the 24V voltage into +24V voltage or -24V voltage and outputs it to the subsequent switch module 222.

[0073] Among them, the switch module 222 is a module for controlling the on / off state of the electrical connection path between the voltage polarity regulation module 221 and the motor 140. Exemplarily, when the voltage polarity regulation module 221 converts the 24V voltage into +24V voltage, the switch module 222 is correspondingly turned on, and the +24V voltage is input to the motor 140, so that the motor 140 can rotate forward. On the contrary, when the voltage polarity regulation module 221 converts the 24V voltage into +24V voltage, the switch module 222 is correspondingly turned on, and the +24V voltage is input to the motor 140, so that the motor 140 can rotate forward. Here, as long as the voltage polarities are different, the rotation directions of the motor 140 are different, and the specific corresponding relationship between the voltage polarity and the rotation direction of the motor 140 is not limited.

[0074] In some embodiments, Figure 7 is a schematic structural diagram of a motor control circuit provided by an embodiment of the present disclosure, Figure 8 is a schematic structural diagram of another motor control circuit provided by an embodiment of the present disclosure. On the basis of Figure 5 , with reference to Figure 7 and Figure 8, the voltage polarity regulation module 221 includes a first sub-power supply B2, a first relay RL1, a second relay RL2, and a plurality of diodes; the first sub-power supply B2, the first relay RL1, and the second relay RL2 are connected in series in sequence to form a loop; some diodes are connected in series between the first sub-power supply B2 and the first relay RL1, and the other part of the diodes are connected in series between the first sub-power supply B2 and the second relay RL2.

[0075] Exemplarily, Figure 7 and Figure 8 both show that the plurality of diodes include diode D2, diode D3, diode D4, diode D5. Diode D2 and diode D3 are connected in series between the first sub-power supply B2 and the first relay RL1, and diode D4 and diode D5 are connected in series between the first sub-power supply B2 and the second relay RL2.

[0076] Among them, the first sub-power supply B2 is at least used to supply power to the first relay RL1 and the second relay RL2. Exemplarily, the first sub-power supply B2 can receive a 24V voltage input from the main power supply 210, and while supplying power to the first relay RL1 and the second relay RL2, it also provides the voltage for realizing polarity conversion.

[0077] It should be noted that based on the characteristics of the forward conduction and reverse cut-off of the diode, the present disclosure embodiment regulates the voltage polarity. For example, when the relevant diode conducts forward, it outputs a +24V voltage, and conversely, when it is reverse cut-off, it outputs a -24V voltage.

[0078] Figure 7 The current flow path in the forward rotation scenario of the motor 140 is shown by the arrow direction. Specifically, in this scenario, the first relay RL1 is closed, and the current starts from the first sub-power supply B2, flows through diode D2, diode D3, and the first relay RL1, and then returns to the first sub-power supply B2. At this time, the first relay RL1 outputs a +24V voltage to control the forward rotation of the motor.

[0079] In addition, Figure 8 The current flow path in the reverse rotation scenario of the motor 140 is shown by the arrow direction. Specifically, in this scenario, the second relay RL2 is closed, and the current starts from the first sub-power supply B2, flows through diode D4, diode D5, and the second relay RL2, and then returns to the first sub-power supply B2. At this time, the second relay RL2 outputs a -24V voltage to control the reverse rotation of the motor.

[0080] Specifically, when the first sub-power supply B2 is cut off by the first controller, the voltage polarity regulation module 221 loses power supply, and thus cannot perform voltage polarity conversion, resulting in the motor stopping working. Exemplarily, a switching device may be provided between the main power supply and the first sub-power supply B2, and the switching device is controlled by the first controller to be disconnected to cut off the first sub-power supply B2. Similarly, the switching device is controlled by the first controller to be closed to provide the first sub-power supply B2.

[0081] In some embodiments, based on Figure 5 and with reference to Figure 7 and Figure 8 the switching module 222 includes a second sub-power supply B3, a first contactor RL3, and a second contactor RL4; the first sub-power supply B2, the first relay RL1, and the first contactor RL3 are sequentially connected in series to form a loop; the first sub-power supply B2, the second relay RL2, and the second contactor RL4 are sequentially connected in series to form a loop; the first contactor RL3 and the second contactor RL4 are respectively connected to the motor 140, and the first contactor RL3 and the second contactor RL4 are respectively connected to the second sub-power supply B3.

[0082] Among them, the second sub-power supply B3 is used to supply power to the first contactor RL3 and the second contactor RL4. Exemplarily, the voltage of the second sub-power supply B3 can also receive the 24V voltage input from the main power supply 210.

[0083] Among them, Figure 7 the current flow path in the forward rotation scenario of the motor 140 is shown by the arrow direction. Specifically, in this scenario, the first contactor RL3 is closed, and the current output from the first relay RL1 flows through the first contactor RL3, thereby inputting a +24V voltage to the motor 140 to drive the motor 140 to rotate forward.

[0084] In addition, Figure 8 the current flow path in the reverse rotation scenario of the motor 140 is shown by the arrow direction. Specifically, in this scenario, the second contactor RL4 is closed, and the current output from the second relay RL2 flows through the second contactor RL4, thereby inputting a -24V voltage to the motor 140 to drive the motor 140 to rotate in reverse.

[0085] In some embodiments, based on Figure 5 and with reference to Figure 7 and Figure 8 the voltage polarity regulation module 221 further includes a current limiting resistor R2, a current limiting resistor R3, an indicator lamp D6, and an indicator lamp D7.

[0086] Among them, the indicator light D6 is used to indicate the forward rotation of the motor, and the indicator light D7 is used to indicate the reverse rotation of the motor. Specifically, when the motor rotates forward, the indicator light D6 lights up. On the contrary, when the motor rotates in reverse, the indicator light D7 lights up. When the motor stops working, both the indicator lights D6 and D7 do not light up. In this way, by using the lighting and extinguishing prompts of the indicator lights D6 and D7, it is convenient for the outside world to intuitively obtain the working condition of the motor.

[0087] It is not difficult to understand that the current-limiting resistor R2 is used to limit the current flowing into the indicator light D6, and the current-limiting resistor R3 is used to limit the current flowing into the indicator light D7, so as to avoid excessive current flowing into the indicator lights D6 and D7 and ensure their safe use. Exemplarily, the resistance values of the current-limiting resistors R2 and R3 can be 10KΩ, and can be set according to their current-limiting capabilities, which is not limited here.

[0088] In some embodiments, referring to Figure 2 , the handcart electric auxiliary device of the switch cabinet further includes a second controller 230; the second controller 230 is provided with a plurality of touch buttons 231; the second controller 230 is communicatively connected to the first controller 130; the second controller 230 is used to control the rotation or stop of the motor 140 based on an external trigger of the touch button 231.

[0089] Exemplarily, the second controller 230 and the first controller 130 can communicate in a wireless connection or a wired connection manner. If a wireless connection is adopted, the two can be connected by an electrical connection line; if a wireless connection is adopted, a wireless communication module can be installed in the second controller 230 and the first controller 130, such as: a WIFI module or a Bluetooth module, which is not limited here.

[0090] Among them, the second controller 230 is for professional personnel to hold and operate, and the communication distance between the second controller 230 and the first controller 130 is greater than or equal to the safety distance. Specifically, in the actual working process, by setting the communication distance between the second controller 230 and the first controller 130 to be greater than or equal to the safety distance, it can ensure that the distance between the second controller 230 and the switch cabinet handcart is relatively far, so as to protect the personal safety of professional personnel and prevent electric shock accidents when abnormal grounding faults or leakage occur in the high-voltage switch cabinet.

[0091] Exemplarily, the safety distance is at least 8 meters specified by the national standard, that is, professional personnel are restricted to operate the switch cabinet handcart more than 8 meters away from the high-voltage switch cabinet.

[0092] Exemplarily, the multiple touch buttons 231 may include a "rock in" button, a "rock out" button, and an "emergency stop" button. When a professional triggers the "rock in" button, the second controller 230 generates a rock-in instruction and sends it to the first controller. The first controller responds to the rock-in instruction, controls the motor to rotate forward, and then rocks the switchgear handcart in; when a professional triggers the "rock out" button, the second controller 230 generates a rock-out instruction and sends it to the first controller. The first controller responds to the rock-out instruction, controls the motor to rotate in reverse, and then rocks the switchgear handcart out; when a professional triggers the "emergency stop" button, the second controller 230 generates an emergency stop instruction and sends it to the first controller. The first controller responds to the emergency stop instruction, disconnects the corresponding power supply (such as the main power supply, the first sub-power supply) to control the motor to stop, and then makes the switchgear handcart stationary and stops the continuous operation of the abnormal equipment.

[0093] The switchgear handcart electric auxiliary device provided by the embodiments of the present disclosure realizes the function of remote control of on-site equipment. This not only can ensure the personal safety of professionals and avoid potential risks they face in close-range operations, such as electric shock, arc light injury, etc., but also can better observe the operation of on-site equipment, so as to take emergency measures in time when the equipment has problems and respond quickly, thereby effectively reducing the losses and risks caused by equipment failures, and providing a more reliable, safe and convenient solution for the operation and maintenance of the switchgear handcart.

[0094] In some embodiments, referring to Figure 2 , the first controller 130 is provided with multiple touch buttons (not shown in the figure); the first controller 130 is used to control the rotation or stop of the motor 140 based on an external trigger of the touch button.

[0095] Specifically, similar to the touch principle of the second controller 230 described above, the touch buttons of the first controller 130 may also include a "rock in" button, a "rock out" button, and an "emergency stop" button. In this way, the switchgear handcart electric auxiliary device realizes the function of close-range control of on-site equipment. The specific operation process of the touch button can be understood by combining the relevant content above and will not be elaborated here.

[0096] It should be noted that the priority of the close-range control function is higher than that of the remote control function. Because relevant power supplies such as the main power supply are arranged inside the housing, when there is a need to cut off the power supply, using the close-range control function to cut off the power supply is faster, and it is also convenient for professionals to perform maintenance.

[0097] Combined, the electric auxiliary device for the switch cabinet trolley provided by the embodiments of the present disclosure has strong adaptability and can be applied to various environments and occasions, especially in harsh environments or places where it is difficult for professionals to access. Therefore, it can ensure that the device has high practicality, can be widely used in modern power systems, and further improve the operation and management level of power equipment.

[0098] In some embodiments, the electric auxiliary device for the switch cabinet trolley further includes an insulator (not shown); the insulator is disposed between the adsorption member and the telescopic screw.

[0099] Among them, the insulator has an electrical isolation function. Specifically, by setting an insulator between the adsorption member and the telescopic screw, when a leakage occurs in the switch cabinet, it can prevent the current from flowing from the leakage part of the switch cabinet to the electric auxiliary device of the switch cabinet trolley, thereby helping to protect the entire auxiliary device and the on-site professionals from electric shock hazards and enhancing the operation safety.

[0100] In some embodiments, referring to Figure 4 , the electric auxiliary device for the switch cabinet trolley further includes a mobile auxiliary adjustment trolley 310; the mobile auxiliary adjustment trolley 310 includes a flatbed cart 311 and an automatic lifting mechanism 312.

[0101] Among them, the flatbed cart 311 is used to carry the automatic lifting mechanism 312 and has a moving function. Exemplarily, the flatbed cart 311 may include universal wheels and a bottom plate, and the universal wheels are provided at the four top corners of the bottom plate to achieve stable movement.

[0102] Among them, the automatic lifting mechanism 312 is used to carry the housing and has a lifting function to adaptively adjust the height of the housing. Exemplarily, the automatic lifting mechanism 312 may be a scissor lift platform or other structures with a lifting function, which is not limited herein.

[0103] Specifically, on the basis of realizing automatic control and intelligent management, the electric auxiliary device for the switch cabinet trolley provided by the embodiments of the present disclosure can also use the flatbed cart 311 to assist in transporting the housing to the front of the switch cabinet trolley to be operated, saving manpower, and then improving the convenience and safety. In addition, the height of the housing can be adjusted by using the automatic lifting mechanism 312 to facilitate inserting the docking component into the crank handle opening of the switch cabinet trolley and improving the operation efficiency.

[0104] In some embodiments, the switch cabinet trolley to which the embodiments of the present disclosure are applied may further be provided with a remote signal position monitoring module, and the remote signal position monitoring module is wirelessly connected to the second controller.

[0105] Among them, the remote signal position monitoring module is used to monitor the working states of various structures inside the switch cabinet trolley. Specifically, after the remote signal position monitoring module monitors the working states of various structures inside the switch cabinet trolley, it sends them to the second controller. Then, the second controller can give status prompts according to the working states, including but not limited to voice prompts, text prompts, etc., so that professionals can know the working states of various structures inside the switch cabinet trolley and control the switch cabinet trolley to be pushed in or out based on this.

[0106] In this way, by associating the remote signal position monitoring module with the second controller, phenomena such as "stealth closing" or artificial "misclosing" of the switch cabinet trolley can be avoided, preventing professionals from being injured and electrical equipment from being damaged.

[0107] In some embodiments, the electric auxiliary device of the switch cabinet trolley further includes a master console; the master console is used to monitor the working states of various structures inside the switch cabinet trolley and / or control the switch cabinet trolley to be pushed in or out based on an external trigger.

[0108] Exemplarily, the master console may include a touch screen. The working states of various structures inside the switch cabinet trolley can be displayed on the touch screen, and at the same time, virtual touch buttons can be set to facilitate the control of the switch cabinet trolley by artificial triggering.

[0109] It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the element.

[0110] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electric auxiliary device for a switch cabinet handcart, characterized in that, Applied to the switch cabinet trolley, the switch cabinet trolley is provided with a crank handle opening; the auxiliary device includes: a housing, an adsorption component, and a first controller; The housing is provided with a triangular front plate and a rear plate, the front plate and the rear plate are arranged oppositely, and the front plate is close to the switch cabinet trolley; the adsorption components are located at the three top corners of the front plate; the first controller is located inside the housing, and the first controller is electrically connected to the adsorption components; The first controller is at least used to control the adsorption components to adsorb on the surface of the switch cabinet trolley based on the hole alignment working mode.

2. The electric auxiliary device for the switch cabinet trolley according to claim 1, wherein It further includes a motor and a docking component; The motor is located inside the housing, and the motor is electrically connected to the first controller; one end of the docking component is detachably connected to the motor, and the other end penetrates through the front plate and extends out; The docking component is used to insert into the crank handle opening of the switch cabinet trolley; The motor is used to drive the docking component to rotate or stop under control.

3. The electric auxiliary device for the switch cabinet trolley according to claim 1, characterized in that It further includes a telescopic screw, a nut, and a universal joint; The front plate and the rear plate are flush, and the nut is fixed at each top corner of the front plate and the rear plate; the telescopic screw passes through the nuts arranged oppositely on the rear plate and the front plate, and the telescopic screw is threadedly connected to the nut; one end of the telescopic screw is fixed to the adsorption component through the universal joint.

4. The electric auxiliary device for the switch cabinet trolley according to claim 1, characterized in that It further includes a main power supply; The main power supply is electrically connected to the first controller.

5. The electric auxiliary device for the switch cabinet trolley according to claim 2, wherein, It further includes a motor control circuit; The first controller is electrically connected to the motor through the motor control circuit; The motor control circuit is used to control the motor to rotate or stop.

6. The electric auxiliary device for the switch cabinet trolley according to claim 5, wherein The motor control circuit includes a voltage polarity regulation module and a switch module; The voltage polarity regulation module is connected to the motor through the switch module.

7. The electric auxiliary device for the switch cabinet trolley according to claim 6, characterized in that, The voltage polarity regulation module includes a first sub-power supply, a first relay, a second relay, and a plurality of diodes; The first sub-power supply, the first relay, and the second relay are sequentially connected in series to form a loop; some of the diodes are connected in series between the first sub-power supply and the first relay, and the other part of the diodes are connected in series between the first sub-power supply and the second relay.

8. The electric auxiliary device for the switch cabinet trolley according to claim 7, wherein The switch module includes a second sub-power supply, a first contactor, and a second contactor; The first sub-power supply, the first relay, and the first contactor are sequentially connected in series to form a loop; the first sub-power supply, the second relay, and the second contactor are sequentially connected in series to form a loop; the first contactor and the second contactor are respectively connected to the motor, and the first contactor and the second contactor are respectively connected to the second sub-power supply.

9. The electric auxiliary device for the switch cabinet trolley according to claim 2, characterized in that, It further includes a second controller; the second controller is provided with a plurality of touch buttons; The second controller is communicatively connected to the first controller; the second controller is used to control the motor to rotate or stop based on an external trigger of the touch buttons.

10. The electric auxiliary device for the switch cabinet trolley according to claim 3, characterized in that, It further includes an insulator; The insulator is arranged between the adsorption component and the telescopic screw.

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