Medium-voltage contactor cabinet

Abstract

The utility model discloses a medium-voltage contactor cabinet, which relates to the field of electric power monitoring equipment, and adopts the technical scheme that the medium-voltage contactor cabinet comprises a vacuum contactor arranged in a cabinet body of the contactor cabinet; the bearing part is used for bearing the vacuum contactor and can move in the cabinet body; the driving part is linked with the bearing part and can drive the bearing part to translate; the driving part comprises a main driving piece linked with the bearing part, the main driving piece is arranged in the cabinet body, and one end of the main driving piece extends to the outer side of the cabinet body; the electric driving part is arranged in the cabinet body and is linked with the main driving piece; and the manual driving part is arranged outside the cabinet body and is linked with the end part, positioned outside the cabinet body, of the main driving part. The beneficial effects of the utility model are that according to the scheme, the conventional contactor cabinet can be transformed, and the electric control function of the vacuum contactor is added on the basis of not destroying the original functions and structures of the contactor cabinet, so that the contactor cabinet can be operated in an electric control mode. The risk of manual operation is reduced, and meanwhile, a realization basis for remote operation of the contactor cabinet is provided.

Description

Technical Field

[0001] The utility model relates to the field of electric power monitoring equipment, in particular to a medium voltage contactor cabinet. Background Art

[0002] Substations are the core component of the power system and are essential to ensure the normal operation of facilities and equipment. Their main responsibilities include converting, distributing and controlling electricity to meet the power needs of various types of ports, such as cargo handling equipment, lighting systems, information and communication technology equipment, office areas and other port infrastructure.

[0003] Contactor cabinets, also called high-voltage cabinets, account for a large proportion of such equipment in substations. The switching operation of contactor cabinets in traditional substations relies on manual operation, which requires operators to operate the switches, trolleys and grounding switches of the equipment on site one by one. To ensure the accuracy and safety of the operation, operators must follow detailed operation tickets, and each step needs to be carefully checked and executed to avoid power system failures caused by misoperation. The whole process is cumbersome and poses safety hazards. Summary of the invention

[0004] In view of one of the deficiencies of the prior art, the utility model provides a medium voltage contactor cabinet to solve the hidden danger problem of manual operation of the prior contactor cabinet.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a medium voltage contactor cabinet, comprising:

[0006] A vacuum contactor is arranged in a cabinet of a contactor cabinet;

[0007] A bearing part, used for bearing the vacuum contactor, and the bearing part can move within the cabinet;

[0008] A driving part, linked with the bearing part, can drive the bearing part to translate; the driving part comprises:

[0009] A main driving member, linked with the bearing part, is arranged in the cabinet, and one end of the main driving member extends to the outside of the cabinet;

[0010] An electric drive unit is arranged in the cabinet and is linked with the main drive member;

[0011] The manual driving part is arranged outside the cabinet and is linked with the end of the main driving part outside the cabinet.

[0012] Preferably, the bearing portion comprises:

[0013] A fixed bearing structure is fixedly connected to the cabinet body, and the fixed bearing structure is arranged on a side facing the cabinet door;

[0014] The movable bearing structure is movably connected to the fixed bearing structure; the main driving member is linked to the movable bearing structure; and the vacuum contactor is fixedly arranged on the movable bearing structure.

[0015] Preferably, the movable bearing structure comprises:

[0016] The bottom frame is a rectangular structure, the vacuum contactor is arranged on the upper side of the frame, and the fixed bearing structure is arranged on the side of the bottom frame facing the cabinet door;

[0017] At least four rollers are provided, and two rollers are arranged in a group on both horizontal sides of the base frame.

[0018] Preferably, the frame of the base frame is made of metal material, and the movable bearing structure further comprises:

[0019] The grounding piece is fixedly connected to the frame of the base frame. Two grounding pieces are provided and symmetrically arranged on the two side frames of the base frame.

[0020] Preferably, the main driving member is a screw rod, which is rotatably connected to the fixed bearing structure and threadedly connected to the movable bearing structure, and one end of the main driving member passes through the fixed bearing structure and then extends to the outside of the cabinet door of the cabinet;

[0021] The movable bearing structure also includes:

[0022] The connecting tube is a sleeve structure, and an internal thread corresponding to the main driving member is arranged inside the connecting tube, and the connecting tube is fixedly connected to the base frame.

[0023] Preferably, the electric drive unit comprises:

[0024] A motor, used as a power source for the electric drive unit;

[0025] A gear box, whose box body is fixedly connected to the fixed bearing structure; a reduction gear set is arranged inside the gear box, the input end of the gear box is linked with the motor shaft of the motor, and the output end is linked with the main driving member.

[0026] Preferably, the manual drive part is a crank structure, the end of the main drive member facing the cabinet door is a prismatic structure, and a sleeve is provided at the end of the manual drive part corresponding to the main drive member located at the cabinet door.

[0027] Preferably, the fixed bearing structure comprises:

[0028] The fixed main body is a long strip structure:

[0029] The connecting plates are fixedly arranged on both horizontal sides of the fixed body, and the fixed body is detachably connected to the inside of the cabinet through the connecting plates;

[0030] The handle is fixedly arranged on a side of the fixed body facing the cabinet door.

[0031] Preferably, the fixed bearing structure further comprises:

[0032] A lock pin is connected to the fixed body, and when the cabinet door is closed, the lock pin can lock the position of the cabinet door.

[0033] Preferably, the bearing portion further comprises:

[0034] Feedback components, at least two groups are provided, and the two groups of feedback components can respectively provide feedback on the two end positions of the bottom frame travel path;

[0035] The grounding switch limiter is fixedly arranged on the outer side of the base frame and can limit the grounding switch.

[0036] Compared with the existing technology, this solution has the following beneficial effects: This solution can transform the existing contactor cabinet, add the electric control function of the vacuum contactor without destroying the original function and structure of the contactor cabinet, and realize the operation of the contactor cabinet in the form of electric control. It reduces the risk of manual operation and becomes the basis for the realization of remote operation of the contactor cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 This is a front view of the overall structure of the embodiment of the present application;

[0038] Figure 2 A side view of the overall structure of an embodiment of the present application;

[0039] Figure 3 This is a front view of the bearing portion and the vacuum contactor of an embodiment of the present application;

[0040] Figure 4 A side view of a bearing portion and a vacuum contactor according to an embodiment of the present application;

[0041] Figure 5 This is a front view of the bearing portion of an embodiment of the present application;

[0042] Figure 6 A side view of the carrying portion of an embodiment of the present application;

[0043] Figure 7 It is a top view of the carrying portion of an embodiment of the present application.

[0044] In the figure:

[0045] 1. Vacuum contactor; 2. Bearing part; 21. Fixed bearing structure; 211. Fixed main body; 212. Connecting plate; 213. Handle; 214. Lock pin; 22. Movable bearing structure; 221. Base frame; 222. Roller; 223. Grounding piece; 224. Connecting tube; 23. Feedback assembly; 24. Grounding switch limiter; 3. Driving part; 31. Main driving part; 32. Electric driving part; 33. Manual driving part. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0047] See also Figure 1-Figure 4 , this application provides the following technical solutions:

[0048] A medium-voltage contactor cabinet includes a cabinet body, and a cabinet door is provided on the front side of the cabinet body, that is, the side facing the staff when in use. The cabinet body is provided with equipment and facilities of a conventional contactor cabinet according to actual needs. This part of the equipment is not the improvement point of this scheme and will not be described here. The main improvement of this scheme is the improvement of the control method of the vacuum contactor 1. The improved structure is a combination structure of the vacuum contactor 1 and its corresponding bearing part 2. The specific scheme includes a vacuum contactor 1 arranged in the cabinet body of the contactor cabinet, and a bearing part 2 for bearing the vacuum contactor 1, and the bearing part 2 can move in the cabinet body. A driving part 3 is also provided in the cabinet body, and the driving part 3 is linked with the bearing part 2 to drive the bearing part 2 to move horizontally.

[0049] The driving part 3 is composed of a main driving part 31, an electric driving part 32 and a manual driving part 33. The main driving part 31 is linked with the bearing part 2, the main driving part 31 is arranged in the cabinet, and one end thereof extends to the outside of the cabinet; the electric driving part 32 is arranged in the cabinet, and is linked with the main driving part 31; the manual driving part 33 is arranged outside the cabinet, and is linked with the end of the main driving part 31 outside the cabinet.

[0050] Through this solution, the bearing part 2 is used as the bearing structure of the vacuum contactor 1. When the working state of the vacuum contactor 1 needs to be switched, it is only necessary to change the position of the bearing part 2 through the electric drive part 32 or the manual drive part 33. The electric drive part 32 and the manual drive part 33 are linked with the main drive part 31, and can be driven electrically and manually respectively, which plays a double insurance role for the working state switching of the vacuum contactor 1.

[0051] Based on the above implementation scheme, see Figure 3-Figure 7 The bearing part 2 includes a fixed bearing structure 21 and a movable bearing structure 22. The fixed bearing structure 21 is fixedly connected to the cabinet body and is arranged on the side facing the cabinet door; the movable bearing structure 22 is movably connected to the fixed bearing structure 21; the main driving member 31 is linked to the movable bearing structure 22; and the vacuum contactor 1 is fixedly arranged on the movable bearing structure 22.

[0052] The movable supporting structure 22 includes a base frame 221 which is a rectangular structure. A vacuum contactor 1 is arranged on the upper side of the base frame 221. The fixed supporting structure 21 is arranged on the side of the base frame 221 facing the cabinet door. Rollers 222 are arranged on both horizontal sides of the base frame 221, and two rollers 222 are arranged on each side of the base frame 221.

[0053] The frame of the bottom frame 221 is made of metal material, and a grounding piece 223 is fixedly arranged on the frame of the bottom frame 221. Two grounding pieces 223 are arranged symmetrically on the two side frames of the bottom frame 221. The grounding piece 223 is a copper clip structure, and a terminal is arranged on it.

[0054] Based on this structure, a guide rail can be set inside the cabinet corresponding to the moving path of the bottom frame 221 to ensure the limit of its moving path. In addition, the end of the bottom frame 221 facing the cabinet door is set as a plug-in end, and the fixed bearing structure 21 is set with a socket at the end corresponding to the bottom frame 221. When the bottom frame 221 moves to the fixed bearing structure 21, it can be plugged with the socket.

[0055] On the basis of the above implementation scheme, the main driving member 31 is a screw rod, the main driving member 31 is rotatably connected to the fixed bearing structure 21, and is threadedly connected to the movable bearing structure 22, and one end of the main driving member 31 passes through the fixed bearing structure 21 and extends to the outside of the cabinet door of the cabinet. The movable bearing structure 22 includes a connecting tube 224 of a sleeve structure, and the connecting tube 224 is provided with an internal thread corresponding to the main driving member 31, and the connecting tube 224 is fixedly connected to the base frame 221.

[0056] Through this structure, the main driving member 31 can only rotate about its own axis under the limitation of the fixed supporting structure 21. During its rotation, because the roller 222 of the movable supporting structure 22 is against the table surface where it is located, the movable supporting structure 22 can only translate toward or away from the cabinet door, thereby driving the vacuum contactor 1 to move.

[0057] On the basis of the above implementation scheme, the electric drive unit 32 includes a motor and a gear box, and the motor is used as a power source of the electric drive unit 32; the housing of the gear box is fixedly connected to the fixed bearing structure 21; a reduction gear set is arranged inside the gear box, and the input end of the gear box is linked with the motor shaft of the motor, and the output end is linked with the main drive member 31. By adjusting the structure of the motor and the gear set or the main drive member 31 inside the gear box, it is preferable to control the single movement stroke time of the movable bearing structure 22 to be about 20-30 seconds, because for the control of the vacuum contactor 1, the smooth movement is the most priority factor, and an excessively fast speed is not required. The single stroke movement time of 20-30 seconds can ensure that the working state switching is sufficiently smooth for the movement distance inside the cabinet.

[0058] The manual drive part 33 is a crank structure, the end of the main drive member 31 facing the cabinet door is a prism structure, and a sleeve is provided at the end of the manual drive part 33 corresponding to the main drive member 31 located at the cabinet door. It should be noted that the connection between the main drive member 31 and the manual drive part 33 is located on the outside of the cabinet door, so that the position of the vacuum contactor 1 can be changed through the manual drive part 33 without opening the cabinet door.

[0059] Based on the above implementation scheme, the fixed bearing structure 21 includes a fixed body 211 which is a long strip-shaped structure: connecting plates 212 are fixedly arranged on both horizontal sides of the fixed body 211, and the fixed body 211 is detachably connected to the inside of the cabinet through the connecting plates 212; a handle 213 is fixedly connected to the side of the fixed body 211 facing the cabinet door.

[0060] The fixed bearing structure 21 also includes a lock pin 214, which is connected to the fixed body 211. When the cabinet door is closed, the lock pin 214 can lock the position of the cabinet door. An unlocking structure is provided corresponding to the lock pin 214. The lock pin 214 can limit the cabinet door from the inside of the cabinet body, and the unlocking structure can be selected to release the limit of the lock pin 214. The lock pin 214 and its corresponding unlocking structure can use the existing technology, which will not be repeated here. The purpose of setting the lock pin 214 is to lock the cabinet door. For this structure, you can choose to set an additional set in addition to the door lock that comes with the cabinet body to enhance the safety of the cabinet door, or you can only set this set of lock pin structures of the fixed bearing structure 21 as the switch of the cabinet door.

[0061] In addition, a switch is set on the side of the cabinet body facing the cabinet door, and a button switch can be selected. The switch is connected in series in the power supply path of the aforementioned motor. When the cabinet door is opened, the switch is disconnected and the motor is not powered. When the cabinet door is closed, the cabinet door pushes the switch, the switch is closed, and the motor can be powered. This structure is for the safety of the staff. When the cabinet door is opened, the motor cannot work.

[0062] On the basis of the above implementation scheme, the bearing part 2 further includes a feedback component 23, and two groups of feedback components 23 are provided. The two groups of feedback components 23 can respectively provide feedback on the two end positions of the travel path of the chassis 221. The feedback component 23 can be a connecting rod group, which can be pushed by an external structure when the chassis 221 moves to the end position of its travel, thereby triggering the corresponding prompt feedback component. The feedback component 23 is used as an experimental component of the present structure to ensure whether the movement stroke of the chassis 221 meets the required moving distance during maintenance.

[0063] The feedback component 23 can be provided with a feedback member on the frame of the base frame 221, with the side of the base frame 221 facing the cabinet door as the front side, and a feedback block is slidably provided on the front and rear sides of the base frame 221 respectively. The feedback block is a columnar structure, which is slidably connected to the front and rear frames of the base frame 221, and a spring is provided at the connection. When the base frame 221 moves to the end of its movement stroke, the feedback block is touched by the external structure, and the feedback block squeezes the linkage stroke of the connecting rod group for the linkage of the feedback components, and connects the power supply of the feedback components. The feedback components can choose different structures such as prompt lights and speakers.

[0064] On the basis of the above implementation scheme, a grounding switch limiter 24 is fixedly provided on the outer side of the base frame 221, and the grounding switch can be limited by the grounding switch limiter 24. Its specific structure can be adjusted according to actual needs, so that when the base frame 221 is at a fixed position in its moving stroke, the grounding switch limiter 24 can ensure that the grounding switch cannot be operated.

[0065] Based on the above implementation scheme, the aforementioned motor can be connected to the switch through the control unit, and the switch is electrically connected to the centralized control system in the main control room, so as to realize remote control of the contactor cabinet. Furthermore, one-key control of the equipment can be realized, including switching of equipment status, such as operation, hot standby, cold standby, etc.

[0066] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A medium voltage contactor cabinet, characterized in that: include: A vacuum contactor (1) is arranged in a cabinet of a contactor cabinet; A bearing portion (2) used for bearing the vacuum contactor (1), the bearing portion (2) being movable within the cabinet; A driving part (3) is linked with the bearing part (2) and can drive the bearing part (2) to move in translation; The driving unit (3) comprises: A main driving member (31) is linked to the bearing portion (2), the main driving member (31) being arranged inside the cabinet, with one end thereof extending to the outside of the cabinet; An electric drive unit (32) is arranged in the cabinet and is linked to the main drive member (31); The manual drive part (33) is arranged outside the cabinet and is linked to the end of the main drive component (31) located outside the cabinet.

2. The medium voltage contactor cabinet according to claim 1, characterized in that: The bearing portion (2) comprises: A fixed bearing structure (21) is fixedly connected to the cabinet body, and the fixed bearing structure (21) is arranged on a side facing a cabinet door of the cabinet body; The movable bearing structure (22) is movably connected to the fixed bearing structure (21); the main driving member (31) is linked to the movable bearing structure (22); and the vacuum contactor (1) is fixedly arranged on the movable bearing structure (22).

3. The medium voltage contactor cabinet according to claim 2, characterized in that: The movable bearing structure (22) comprises: The bottom frame (221) is a rectangular structure, the vacuum contactor (1) is arranged on the upper side of the frame, and the fixed bearing structure (21) is arranged on a side of the bottom frame (221) facing the cabinet door; At least four rollers (222) are provided, and are arranged in groups of two on both horizontal sides of the base frame (221).

4. The medium voltage contactor cabinet according to claim 3, characterized in that: The frame of the base frame (221) is made of metal material, and the movable bearing structure (22) further comprises: The grounding piece (223) is fixedly connected to the frame of the base frame (221), and two grounding pieces (223) are provided, symmetrically arranged on the two side frames of the base frame (221).

5. The medium voltage contactor cabinet according to claim 3, characterized in that: The main driving member (31) is a screw rod, the main driving member (31) is rotatably connected to the fixed bearing structure (21), and is threadedly connected to the movable bearing structure (22), and one end of the main driving member (31) passes through the fixed bearing structure (21) and then extends to the outside of the cabinet door of the cabinet body; The movable bearing structure (22) further comprises: The connecting tube (224) is a sleeve structure, and is provided with an internal thread corresponding to the main driving member (31). The connecting tube (224) is fixedly connected to the base frame (221).

6. The medium voltage contactor cabinet according to claim 5, characterized in that: The electric drive unit (32) comprises: A motor used as a power source for the electric drive unit (32); A gear box, whose housing is fixedly connected to the fixed bearing structure (21); a reduction gear set is arranged inside the gear box, the input end of the gear box is linked to the motor shaft of the motor, and the output end is linked to the main driving member (31).

7. The medium voltage contactor cabinet according to claim 6, characterized in that: The manual drive part (33) is a crank structure, the end of the main drive member (31) facing the cabinet door is a prism structure, and a sleeve is provided at the end of the manual drive part (33) corresponding to the main drive member (31) located at the cabinet door.

8. The medium voltage contactor cabinet according to claim 2, characterized in that: The fixed bearing structure (21) comprises: The fixed body (211) is a long strip-shaped structure: The connecting plates (212) are fixedly arranged on two horizontal sides of the fixed body (211), and the fixed body (211) is detachably connected to the interior of the cabinet through the connecting plates (212); The handle (213) is fixedly arranged on a side of the fixed body (211) facing the cabinet door.

9. The medium voltage contactor cabinet according to claim 8, characterized in that: The fixed bearing structure (21) further comprises: A lock pin (214) is connected to the fixed body (211); when the cabinet door is closed, the lock pin (214) can lock the position of the cabinet door.

10. The medium voltage contactor cabinet according to claim 3, characterized in that: The bearing portion (2) further comprises: Feedback components (23), at least two groups are provided, and the two groups of feedback components (23) can respectively provide feedback on the two end positions of the travel path of the bottom frame (221); The grounding switch limiting member (24) is fixedly arranged on the outside of the base frame (221) and can limit the grounding switch.

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