A high voltage ring network cabinet

Abstract

The present invention relates to the field of power system equipment, and discloses a high-voltage ring network cabinet, including: a cabinet body and a controller, a plurality of chambers are arranged inside the cabinet body, a cabinet door is arranged on the front of the cabinet body, and an auxiliary maintenance mechanism is arranged on the back of the cabinet body, and the auxiliary maintenance mechanism is used to open the sealing door arranged on the back of the cabinet body during maintenance, and the sealing door corresponds to the plurality of chambers. In the normal use state of the present invention, the back of the ring network cabinet is in a closed state. Once the ring network cabinet needs to be repaired, the two rotating handles are rotated downward in sequence, so that the two rotating handles are transformed from a horizontal relative state to a vertical parallel state, so that the remaining locking tongues at the bottom lose the upward pulling force, and automatically fall under the action of the self-weight of the remaining locking tongues, thereby realizing the opening of the sealed door; the rotating handle is set higher, and the design of not needing to set multiple rotating handles makes short children lack a fulcrum, which can prevent children from touching the rotating handles at will as much as possible, and play a role in reducing safety hazards.

Description

Technical Field

[0001] The invention relates to the field of power system equipment, and in particular to a high-voltage ring network cabinet. Background Art

[0002] In the power system, high-voltage ring main unit (RMU) is a key power distribution equipment that undertakes important functions of power distribution, control and protection. They are usually installed in substations, industrial plants and key nodes of urban power grids to ensure the stability and security of power supply. However, the existing design of high-voltage ring main unit has certain limitations in terms of maintenance and repair.

[0003] Specifically, when the high-voltage ring main unit needs to be repaired, technicians often need to lean their bodies or even partially enter the cabinet to operate. Since the internal space of the high-voltage ring main unit is compact and filled with complex electrical components and wiring, this operation method not only limits the range of activities of the operator and increases the difficulty of operation, but also may cause safety hazards due to the small space, such as the risk of electric shock and physical injury. In addition, working in a confined space for a long time will also bring physical and psychological burdens to technicians, affecting the efficiency and quality of maintenance.

[0004] Therefore, the market urgently needs a technical solution that can improve the maintenance conditions of high-voltage ring main units. Summary of the invention

[0005] The purpose of the present invention is to provide a high-voltage ring network cabinet to solve the technical problem that the internal space of the high-voltage ring network cabinet is compact and filled with complex electrical components and wiring. This operating mode not only limits the operator's range of activities and increases the difficulty of operation, but may also cause safety hazards due to the narrow space.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A high-voltage ring network cabinet comprises: a cabinet body and a controller, wherein a plurality of chambers are arranged inside the cabinet body, a cabinet door is arranged on the front of the cabinet body, and an auxiliary maintenance mechanism is arranged on the back of the cabinet body, wherein the auxiliary maintenance mechanism is used to open the sealing door arranged on the back of the cabinet body during maintenance, and the sealing door corresponds to the plurality of chambers.

[0008] Furthermore, the auxiliary maintenance mechanism includes:

[0009] A rotating handle, the rotating handle is arranged at the upper part of the sealing door, two rotating handles are provided and symmetrically distributed, two groups of lock tongues are rotatably arranged on the sealing door, each group of lock tongues is provided with a plurality of lock tongues and are vertically distributed at equal intervals along the edge of the sealing door, each group of lock tongues corresponds to one rotating handle, and one of the lock tongues in each group is connected to the corresponding rotating handle through a damping shaft;

[0010] The top of the sealed door is hinged to the cabinet, hooks are arranged on both sides of the sealed door, and a support rod is hingedly arranged inside the cabinet. When the sealed door is opened, the end of the support rod can be inserted into the hook of the sealed door to form a triangular support;

[0011] A plurality of lock slots are provided on both sides of the cabinet body, each of the lock slots is arranged in one-to-one correspondence with a lock tongue, and the lock slots are arranged in a quarter circle, and when the end of the lock tongue swings upward from bottom to top into the lock slot, the sealing door is closed;

[0012] A steel wire rope is fixedly connected between the two adjacent locking tongues, and the side edges of the locking tongues are arranged in an arc structure. In the process of entering the locking groove, the locking tongues use their own elastic force to form a pre-tightening force to maintain the locking tongues in the locking grooves.

[0013] Furthermore, a counterweight is suspended on the lock tongue at the bottom through a pull rope. Through the arrangement of the counterweight, when the top lock tongue loses its pulling force, the weight of the counterweight will generate a downward pulling force, thereby driving the multiple lock tongues to swing downward in a coordinated manner, thereby allowing the lock tongue to be separated from the lock slot, thereby facilitating the opening of the sealed door.

[0014] Furthermore, the auxiliary maintenance mechanism also includes an auxiliary ventilation component, which is used to start when the sealed door is opened to exchange air in the cabinet with the external space.

[0015] Furthermore, the auxiliary ventilation component includes:

[0016] A connecting rope, one end of which is connected to the inner side of the sealed door, and the other end of which is fixed to a swing frame after passing through a guide wheel installed on the top wall of the cabinet body. The end of the swing frame is rotatably installed on the middle part of the top wall of the cabinet body through a torsion spring. A heat dissipation fan is movably connected to the swing frame. An embedded groove is provided on the top of the cabinet body. The swing frame and the heat dissipation fan are located in the embedded groove. When the sealed door is opened, the connecting rope pulls the swing frame to overcome the torsion of the torsion spring and disengage from the embedded groove, so that the heat dissipation fan is changed from an idle state located in the embedded groove to a working state.

[0017] A distance sensor is arranged in the embedding groove, and when the distance between the top surface of the embedding groove and the swing frame exceeds a set value, the heat dissipation fan is started.

[0018] Furthermore, the auxiliary maintenance mechanism also includes a shielding lighting assembly, which is used to start when the sealed door is opened, and unfold on the back of the cabinet to form a shielding layer. A No. 1 lighting module is also provided on the shielding layer, and a No. 2 lighting module is provided on the inner top of the cabinet.

[0019] Furthermore, the shielding lighting assembly includes: a accommodating groove, a accommodating groove with a step structure is provided on both vertical sides of the cabinet body corresponding to the sealed door, an elastic folding curtain is provided on the inner side edge of the sealed door, a counterweight elastic strip is provided on the side of the elastic folding curtain away from the sealed door, the No. 1 lighting module is installed on the opposite sides of the two counterweight elastic strips, and a photosensor is provided on the outside of the sealed door.

[0020] Furthermore, a soft magnet is embedded in the counterweight elastic strip, and the soft magnet is arranged at a position corresponding to the support rod.

[0021] Beneficial effects of the present invention:

[0022] (1) The present invention provides an auxiliary maintenance mechanism, so that the interior of multiple chambers inside the ring main unit can be viewed more conveniently without being restricted by the front view. At the same time, the hinge of the sealed door is set at the top, so that the upwardly opened sealed door forms a shielding plate, which can provide a certain shielding effect in hot sun or rainy weather, further facilitating smoother maintenance for the staff;

[0023] (2) The present invention sets an auxiliary ventilation component and utilizes the setting of a distance sensor. Once the sealing door is opened, the connecting rope is pulled to make the swing frame and the heat dissipation fan swing downward and disengage from the embedded groove. When the distance between the swing frame and the top surface of the embedded groove exceeds the distance setting value, the heat dissipation fan automatically starts to blow air into the cabinet to accelerate the exchange of air flow inside the cabinet and outside the cabinet, so that the staff can also perform heat dissipation and rapid ventilation in a relatively narrow maintenance space. On the one hand, combined with the opening state of the sealing door, the comprehensive effect realizes the effective circulation of air inside the cabinet, reducing the difficulty of maintenance for the staff. On the other hand, the opening and closing of the sealing door is utilized to realize the automatic start and stop of the auxiliary ventilation component without the need for human control. This is convenient and fast and can also save energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Figure 1 It is a forward schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the back part of the present invention;

[0027] Figure 3 It is a three-dimensional structural schematic diagram of the auxiliary maintenance mechanism in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the shielding lighting assembly in the present invention;

[0029] Figure 5It is a schematic diagram of the structure of the auxiliary ventilation component in the present invention.

[0030] Description of the drawings: 1. Cabinet body; 2. Cabinet door; 3. Sealed door; 4. Auxiliary maintenance mechanism; 41. Rotating handle; 42. Lock tongue; 43. Damping shaft; 44. Hook; 45. Support rod; 46. Lock slot; 47. Wire rope; 48. Counterweight; 5. Auxiliary ventilation assembly; 51. Connecting rope; 52. Guide wheel; 53. Swing frame; 54. Cooling fan; 55. Embedded groove; 56. Distance sensor; 6. Shielding lighting assembly; 61. Lighting module No. 1; 62. Lighting module No. 2; 63. Receiving groove; 64. Elastic folding curtain; 65. Counterweight elastic strip; 66. Photosensor; 67. Soft magnet. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-Figure 5 As shown, the present invention is a high-voltage ring network cabinet, comprising: a cabinet 1 and a controller, wherein the cabinet 1 is provided with a plurality of chambers, the cabinet 1 is provided with a cabinet door 2 on the front, and an auxiliary maintenance mechanism 4 is provided on the back of the cabinet 1, wherein the auxiliary maintenance mechanism 4 is used to open a sealing door 3 provided on the back of the cabinet 1 during maintenance, and the sealing door 3 corresponds to the plurality of chambers. The auxiliary maintenance mechanism 4 comprises:

[0033] A rotating handle 41, which is arranged at the upper part of the sealing door 3. Two rotating handles 41 are provided and are symmetrically distributed. Two groups of locking tongues 42 are rotatably provided on the sealing door 3. Each group of locking tongues 42 is provided with a plurality of locking tongues 42 and are vertically distributed at equal intervals along the edge of the sealing door 3. Each group of locking tongues 42 corresponds to one rotating handle 41, and one of the locking tongues 42 in each group is connected to the corresponding rotating handle 41 through a damping shaft 43;

[0034] The top of the sealed door 3 is hinged to the cabinet 1, hooks 44 are provided on both sides of the sealed door 3, and a support rod 45 is hingedly provided inside the cabinet 1. When the sealed door 3 is opened, the end of the support rod 45 can be inserted into the hook 44 of the sealed door 3 to form a triangular support;

[0035] A plurality of lock slots 46 are provided on both sides of the cabinet 1, each of the lock slots 46 is arranged in one-to-one correspondence with the lock tongue 42, and the lock slots 46 are arranged in a quarter circle. When the end of the lock tongue 42 swings upward from bottom to top into the lock slot 46, the sealing door 3 is closed;

[0036] A steel wire rope 47 is fixedly connected between the two adjacent locking tongues 42, and the side edges of the locking tongues 42 are arranged in an arc structure. In the process of entering the locking groove 46, the elastic force of the locking tongue 42 itself is used to form a pre-tightening force to maintain the locking tongue 42 in the locking groove 46.

[0037] In order to solve the problem of insufficient maintenance space and difficulty in maintenance proposed in the background technology, the present invention provides a sealing door 3 on the back of the ring network cabinet. In normal use, the back of the ring network cabinet is in a closed state. Once the ring network cabinet needs to be repaired, the two rotating handles 41 are rotated downward in sequence, so that the two rotating handles 41 are transformed from a horizontal relative state to a vertical parallel state. The setting of the damping shaft 43 can keep the rotating handles 41 in the horizontal and vertical states. The connected locking tongue 42 is driven to rotate by the damping shaft 43, so that the remaining locking tongues 42 at the bottom lose their upward position. The pulling force automatically falls under the deadweight of the remaining lock tongues 42, thereby realizing the opening of the sealed door 3; when the inspection is completed, the two rotating handles 41 are rotated to the horizontal state, and the damping shaft 43 drives the connected lock tongues 42 to pull the wire rope 47, so that the multiple lock tongues 42 are linked to swing upward and re-enter the lock groove 46 to realize the re-closing of the sealed door 3; the rotating handle 41 is set higher, and there is no need to set multiple rotating handles 41, so that children with short height lack a fulcrum, which can prevent children from touching the rotating handle 41 at will as much as possible, thereby reducing safety hazards;

[0038] Through the above technical solution, the interiors of multiple chambers inside the ring network cabinet can be viewed more conveniently without being restricted by the frontal viewing angle; at the same time, the hinge of the sealing door 3 is set at the top, so that the sealing door 3 opened upward forms a shielding plate, which can provide a certain shielding effect in hot sun or rainy weather, further facilitating smoother maintenance for the staff.

[0039] A counterweight 48 is also suspended on the lock tongue 42 at the bottom through a pull rope. Through the arrangement of the counterweight 48, when the top lock tongue 42 loses its pulling force, the weight of the counterweight 48 will generate a downward pulling force, thereby driving the multiple lock tongues 42 to swing downward in a coordinated manner, thereby allowing the lock tongues 42 to disengage from the lock slots 46, thereby facilitating the opening of the sealed door 3.

[0040] The auxiliary maintenance mechanism 4 further includes an auxiliary ventilation component 5, which is used to be started when the sealing door 3 is opened to exchange air in the cabinet 1 with the external space.

[0041] The auxiliary ventilation component 5 comprises:

[0042] A connecting rope 51, one end of which is connected to the inner side of the sealed door 3, and the other end of which is fixed to a swing frame 53 after passing through a guide wheel 52 installed on the inner top wall of the cabinet 1. The end of the swing frame 53 is rotatably installed on the middle part of the inner top wall of the cabinet 1 through a torsion spring. A heat dissipation fan 54 is movably connected to the swing frame 53. An embedding groove 55 is provided on the top of the cabinet 1. The swing frame 53 and the heat dissipation fan 54 are located in the embedding groove 55. When the sealed door 3 is opened, the connecting rope 51 pulls the swing frame 53 to overcome the torsion of the torsion spring and disengage from the embedding groove 55, so that the heat dissipation fan 54 changes from an idle state located in the embedding groove 55 to a working state;

[0043] A distance sensor 56 is disposed in the embedding groove 55 . When the distance between the top surface of the embedding groove 55 and the swing frame 53 exceeds a set value, the heat dissipation fan 54 is started.

[0044] In order to reduce the difficulties caused by the narrow maintenance space inside the cabinet 1, the present invention further increases the difficulty of maintenance for the staff when maintenance is carried out under the scorching sun or in hot weather in the absence of active exhaust facilities. Therefore, an auxiliary ventilation component 5 is set. By using the setting of the distance sensor 56, once the sealing door 3 is opened, the connecting rope 51 is pulled, so that the swing frame 53 and the heat dissipation fan 54 swing downward and disengage from the embedded groove 55, and the distance between the swing frame 53 and the top surface of the embedded groove 55 exceeds the distance setting value. At this time, the heat dissipation fan 54 is automatically started to blow air into the cabinet 1 to accelerate the exchange of the internal airflow of the cabinet 1 with the external airflow, so that the staff can also dissipate heat and quickly ventilate in a relatively narrow maintenance space; on the one hand, combined with the open state of the sealing door 3, the effective circulation of air inside the cabinet 1 is achieved under the comprehensive effect, reducing the difficulty of maintenance for the staff; on the other hand, the opening and closing of the sealing door 3 is utilized to realize the automatic start and stop of the auxiliary ventilation component 5, without the need for human control, which is convenient and fast and can also save energy.

[0045] The auxiliary maintenance mechanism 4 also includes a shielding lighting component 6, which is used to start when the sealed door 3 is opened, and unfolds on the back of the cabinet 1 to form a shielding layer. A first lighting module 61 is also provided on the shielding layer, and a second lighting module 62 is provided on the inner top of the cabinet 1.

[0046] The shielding lighting assembly 6 includes: a receiving groove 63, the cabinet 1 and the two vertical sides corresponding to the sealed door 3 are both provided with a stepped receiving groove 63, the inner side of the sealed door 3 is provided with an elastic folding curtain 64, the side of the elastic folding curtain 64 facing away from the sealed door 3 is provided with a weighted elastic strip 65, the first lighting module 61 is installed on the side opposite to the weighted elastic strip 65, and the outer side of the sealed door 3 is provided with a photosensitive sensor 66. A soft magnet 67 is embedded in the weighted elastic strip 65, and the soft magnet 67 is provided at a position corresponding to the support rod 45.

[0047] In order to improve the lighting environment during maintenance, the present invention is provided with a photosensitive sensor 66, and the photosensitive sensor 66 is used to detect the light brightness. When the light during maintenance is dim, the No. 1 lighting module 61 is automatically started, thereby illuminating the staff below from both sides of the sealed door 3, and at the same time, the No. 2 lighting module 62 illuminates the inside of the cabinet 1, and a two-pronged approach is used to achieve simultaneous illumination of the inside and outside of the cabinet 1, thereby improving the brightness during maintenance and further reducing the difficulty of maintenance; at the same time, in order to prevent the scorching sun or rain on both sides from affecting the staff, an elastic folding curtain 64 is added. On the one hand, when the sealed door 3 is closed, the accommodating groove 63 provided on the cabinet 1 will passively squeeze the elastic folding curtain 64 to compress it, thereby enhancing the sealing of both sides of the sealed door 3; on the other hand, the sealing After the door 3 swings upward and unfolds, the elastic folding curtains 64 on both sides droop and unfold under the action of their own weight. The elastic folding curtains 64 unfolded on both sides and the sealed door 3 together form a shielding layer to achieve a three-sided shielding effect, further enhancing the shielding effect and improving the convenience of maintenance; the setting of the counterweight elastic strip 65 can accelerate the drooping and unfolding action of the elastic folding curtain 64, improve the shielding efficiency, and at the same time allow the triangular support structure formed by the support rod 45 and the sealing plate to passively support the elastic folding curtain 64, so that the elastic folding curtain 64 cannot be narrowed inward, resulting in a smaller shielding space. At the same time, the setting of the soft magnet 67 can be adsorbed with the support rod 45 to prevent the elastic folding curtain 64 from passively swinging outward, resulting in the destruction of the shielding space, thereby maintaining the preset effective shielding space and improving the convenience of maintenance as a whole.

[0048] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A high voltage ring main unit, comprising: A cabinet and a controller, wherein a plurality of chambers are arranged inside the cabinet, characterized in that a cabinet door is arranged on the front of the cabinet, and an auxiliary maintenance mechanism is arranged on the back of the cabinet, wherein the auxiliary maintenance mechanism is used to open a sealed door arranged on the back of the cabinet during maintenance, and the sealed door corresponds to the plurality of chambers; the auxiliary maintenance mechanism comprises: A rotating handle, the rotating handle is arranged at the upper part of the sealing door, two rotating handles are provided and symmetrically distributed, two groups of lock tongues are rotatably arranged on the sealing door, each group of lock tongues is provided with a plurality of lock tongues and are vertically distributed at equal intervals along the edge of the sealing door, each group of lock tongues corresponds to one rotating handle, and one of the lock tongues in each group is connected to the corresponding rotating handle through a damping shaft; The top of the sealed door is hinged to the cabinet, hooks are arranged on both sides of the sealed door, and a support rod is hingedly arranged inside the cabinet. When the sealed door is opened, the end of the support rod can be inserted into the hook of the sealed door to form a triangular support; A plurality of lock slots are provided on both sides of the cabinet body, each of the lock slots is arranged in one-to-one correspondence with a lock tongue, and the lock slots are arranged in a quarter circle, and when the end of the lock tongue swings upward from bottom to top into the lock slot, the sealing door is closed; A steel wire rope is fixedly connected between the two adjacent locking tongues, and the side edges of the locking tongues are arranged in an arc structure. In the process of entering the locking groove, the locking tongues use their own elastic force to form a pre-tightening force to maintain the locking tongues in the locking grooves.

2. The high voltage ring main unit according to claim 1, characterized in that: A counterweight is also suspended on the locking tongue at the bottom through a pull rope.

3. The high voltage ring main unit according to claim 2, characterized in that: The auxiliary maintenance mechanism also includes an auxiliary ventilation component, which is used to start when the sealed door is opened to exchange air in the cabinet with the external space.

4. The high-voltage ring main unit according to claim 3, characterized in that: The auxiliary ventilation component comprises: A connecting rope, one end of which is connected to the inner side of the sealed door, and the other end of which is fixed to a swing frame after passing through a guide wheel installed on the top wall of the cabinet body. The end of the swing frame is rotatably installed on the middle part of the top wall of the cabinet body through a torsion spring. A heat dissipation fan is movably connected to the swing frame. An embedded groove is provided on the top of the cabinet body. The swing frame and the heat dissipation fan are located in the embedded groove. When the sealed door is opened, the connecting rope pulls the swing frame to overcome the torsion of the torsion spring and disengage from the embedded groove, so that the heat dissipation fan is changed from an idle state located in the embedded groove to a working state. A distance sensor is arranged in the embedding groove, and when the distance between the top surface of the embedding groove and the swing frame exceeds a set value, the heat dissipation fan is started.

5. The high voltage ring main unit according to claim 4, characterized in that: The auxiliary maintenance mechanism also includes a shielding lighting component, which is used to start when the sealed door is opened, and unfolds on the back of the cabinet to form a shielding layer. A No. 1 lighting module is also arranged on the shielding layer, and a No. 2 lighting module is arranged on the inner top of the cabinet.

6. The high voltage ring main unit according to claim 5, characterized in that: The shielding lighting assembly includes: a receiving groove, a receiving groove with a step structure is provided on both vertical sides of the cabinet body corresponding to the sealed door, an elastic folding curtain is provided on the inner side edge of the sealed door, a counterweight elastic strip is provided on the side of the elastic folding curtain away from the sealed door, the No. 1 lighting module is installed on the opposite sides of the two counterweight elastic strips, and a photosensor is provided on the outer side of the sealed door.

7. The high voltage ring main unit according to claim 6, characterized in that: A soft magnet is embedded in the counterweight elastic strip, and the soft magnet is arranged at a position corresponding to the support rod.

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