Switch cabinet for transformer

Abstract

The invention relates to a switch cabinet for a transformer. The switch cabinet comprises a cabinet body and a protection device, the top end of the cabinet body is provided with a top cover. The side surface of the top cover is provided with an accommodating cavity for accommodating the protection device. The protection device comprises a main plate, a side plate and a connecting piece. The side plate is connected to the main plate, one end of the connecting piece is connected to the main plate, and the other end of the connecting piece is connected to the side plate; the side face of the main board is slidably connected to the side face of the containing cavity. A sliding block is arranged on the main plate; the side face of the containing cavity is provided with a first groove matched with the sliding block. A limiting piece is arranged at an opening of the containing cavity. In rainy days, a worker can pull out the main plate from the containing cavity, open the side plate and the main plate to form a certain angle, connect the connecting piece in the containing cavity to serve as a support of the side plate, and retract the connecting piece on the side plate, then store the side plate on the main plate and push the main plate back into the containing cavity after maintenance of the worker is finished, so that convenience and rapidness are achieved, splashing of rainwater is reduced, and the service life of the worker is prolonged. Precise instruments in the cabinet body are protected and prevented from being contaminated by water vapor.

Description

Technical Field

[0001] This invention belongs to the field of transformer switchgear, and in particular relates to a switchgear for transformers. Background Technology

[0002] A switchgear is an electrical device. External power lines first enter the main control switch inside the cabinet, then proceed to the branch control switches, each configured according to its needs. Examples include instrumentation, automatic control, motor magnetic switches, and various AC contactors. The main function of a switchgear is to open, close, control, and protect electrical equipment during the power generation, transmission, distribution, and energy conversion processes in a power system. The main components inside a switchgear include circuit breakers, disconnect switches, load switches, operating mechanisms, instrument transformers, and various protective devices.

[0003] When repairing components of a power system such as transformers, workers need to open the switch cabinet in order to repair the internal equipment.

[0004] However, during inclement weather such as rain or snow, rainwater can fall into the switch cabinet with the wind, greatly affecting the normal operation of the power system. It also poses a risk of electric shock to workers and can interfere with their normal maintenance work, increasing the difficulty of maintenance. Summary of the Invention

[0005] In view of this, the present invention aims to propose a switchgear for transformers to solve the technical problems existing in the prior art, where rainwater and other rain-related water can fall into the switchgear with the wind direction during inclement weather such as rain or snow, greatly affecting the normal operation of the power system, posing a risk of electric shock to workers, and also hindering normal maintenance work and increasing the difficulty of maintenance.

[0006] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0007] A switchgear for transformers, comprising a cabinet and protective devices;

[0008] The top of the cabinet is equipped with a top cover, and the side of the top cover is equipped with a cavity for accommodating protective devices;

[0009] The protective device includes a main board, a side plate, and a connector; the side plate is connected to the main board, one end of the connector is connected to the main board, and the other end of the connector is connected to the side plate.

[0010] The motherboard is slidably connected to the side of the receiving cavity;

[0011] The main board is equipped with a slider; the side of the receiving cavity is provided with a first groove that matches the slider;

[0012] A limiting piece is provided at the opening of the receiving cavity.

[0013] Furthermore, the motherboard is provided with a through groove to accommodate the side plate, and the side of the through groove is provided with a limiting protrusion.

[0014] One end of the side plate is rotatably connected to the through groove.

[0015] Furthermore, the motherboard is equipped with a limiting groove, and one end of the connector is connected to the limiting groove.

[0016] Furthermore, the inner side of the side plate is provided with a second groove for accommodating the connector; the other end of the connector is connected to one end of the second groove.

[0017] Furthermore, a third groove is provided on the outer surface of the side plate.

[0018] Furthermore, the cabinet has movable handles on its sides.

[0019] Compared with the prior art, the switchgear for transformers of the present invention has the following advantages:

[0020] (1) The protective device of the present invention is installed in the receiving cavity of the top cover. In rainy weather, the worker can open the protective device to act as a rain shelter to reduce the splashing of rainwater, protect the precision instruments inside the cabinet and prevent them from getting wet. The protective device can be opened to pull out the main board from the receiving cavity, open the side plate and the main board to form a certain angle, connect the connector in it as a support for the side plate. After the worker finishes the maintenance, the connector is put back on the side plate, the side plate is put back on the main board, and the main board is pushed back into the receiving cavity, which is convenient and quick.

[0021] (2) The main board of the present invention is provided with a through groove for accommodating the side plate along the lateral direction. The outer end of the side plate is rotatably connected in the through groove. The limiting protrusion on the side of the through groove can be used to snap the side plate to prevent the side plate from falling out of the through groove at will and increase stability.

[0022] (3) The main board of the present invention is provided with an inwardly recessed limiting groove. When the side plate needs to be opened, the worker will place the left end of the connector into the limiting groove to facilitate the support of the side plate. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0024] Figure 1 This is a schematic diagram of a switchgear for a transformer according to an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the cabinet structure according to an embodiment of the present invention;

[0026] Figure 3 for Figure 2A magnified view of a portion of the image;

[0027] Figure 4 This is a schematic diagram of the protective device described in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of the protective device in the retracted cabinet state according to an embodiment of the present invention.

[0029] Explanation of reference numerals in the attached figures:

[0030] 100 - Cabinet body; 101 - Top cover;

[0031] 102 - Receiving cavity; 103 - First groove;

[0032] 104 - Limiting plate; 105 - Moving handle;

[0033] 200 - Protective device; 201 - Mainboard;

[0034] 202 - Side panel; 203 - Connector;

[0035] 204 - Slider; 205 - Through slot;

[0036] 206 - Limiting protrusion; 207 - Limiting groove;

[0037] 208 - Second groove; 209 - Third groove. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0039] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0040] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0041] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0042] like Figures 1-5 As shown, the present invention provides a switch cabinet for a transformer, including a cabinet body 100 and a protective device 200;

[0043] The top of the cabinet 100 is provided with a top cover 101, and the side of the top cover 101 is provided with a receiving cavity 102 for accommodating the protective device 200.

[0044] The protective device 200 includes a main board 201, a side plate 202, and a connector 203; the side plate 202 is connected to the main board 201, one end of the connector 203 is connected to the main board 201, and the other end of the connector 203 is connected to the side plate 202.

[0045] The side of the motherboard 201 is slidably connected to the side of the receiving cavity 102;

[0046] The main board 201 is provided with a slider 204; the side of the receiving cavity 102 is provided with a first groove 103 that matches the slider 204;

[0047] A limiting piece 104 is provided at the opening of the receiving cavity 102.

[0048] In one embodiment of the present invention, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the top of the switch cabinet 100 is provided with a top cover 101, and the front end face of the top cover 101 is provided with a receiving cavity 102. The protective device 200 is installed in the receiving cavity 102. In rainy weather, workers can open the protective device 200 to act as a rain shelter, reduce the splashing of rainwater, protect the precision instruments inside the cabinet 100, and prevent them from being contaminated by moisture.

[0049] The protective device 200 includes a main board 201, a side plate 202, and a connector 203. One end of the side plate 202 is connected to the main board 201 via a pivot. The side plate 202 and the main board 201 form an obtuse angle, which increases the rainproof effect of the protective device 200. The connector 203 is supported between the two plates to prevent the side plate 202 from moving at will and to increase stability.

[0050] The slider 204 on the side of the motherboard 201 is slidably connected to the first groove 103 on the side of the receiving cavity 102, which makes it easy for workers to push and pull the motherboard 201 back and forth for easy use. A limiting piece 104 is provided at the opening of the receiving cavity 102 to prevent the slider 204 from disengaging from the first groove 103 and to prevent the motherboard 201 from falling and injuring workers.

[0051] When workers need to repair the switch cabinet, they can open the protective device 200 and pull out the main board 201 from the receiving cavity 102 in rainy weather. They can then open the side plate 202 and the main board 201 to form a certain angle and connect the connector 203 to it as a support for the side plate 202. After the workers finish the repair, they can put the connector 203 back on the side plate 202, put the side plate 202 back on the main board 201, and push the main board 201 back into the receiving cavity 102. This is convenient and quick.

[0052] More preferably, the main board 201 is provided with a through groove 205 for accommodating the side plate 202, and the side of the through groove 205 is provided with a limiting protrusion 206.

[0053] One end of the side plate 202 is rotatably connected to the through groove 205.

[0054] In one embodiment of the present invention, such as Figure 2 , Figure 3 As shown, the motherboard 201 has a through groove 205 along the horizontal direction to accommodate the side plate 202. The outer end of the side plate 202 is rotatably connected in the through groove 205. The limiting protrusion 206 on the side of the through groove 205 can be used to lock the side plate 202, preventing the side plate 202 from falling out of the through groove 205 at will, thus increasing stability.

[0055] More preferably, the motherboard 201 is provided with a limiting groove 207, and one end of the connector 203 is connected to the limiting groove 207.

[0056] In one embodiment of the present invention, such as Figure 4 As shown, the main board 201 has an inwardly recessed limiting groove 207. When the side plate 202 needs to be opened, the worker will place the left end of the connector 203 into the limiting groove 207 to facilitate the support of the side plate 202.

[0057] More preferably, the inner side of the side plate 202 is provided with a second groove 208 for accommodating the connector 203; the other end of the connector 203 is connected to one end of the second groove 208.

[0058] In one embodiment of the present invention, such as Figure 4 , Figure 5As shown, after the side panel 202 is stored on the main board 201, the side of the side panel 202 facing the main board 201 is the inner side. After the side panel 202 is opened, the right end of the connector 203 is connected to the right side of the second groove 208, and the left end of the connector 203 moves along the right end of the connector 203 into the limiting groove 207, which opens the side panel 202 at a certain angle, increases the protective effect of the protective device, and increases the rainproof area.

[0059] After the worker finishes the repair, the left end of the connector 203 is removed from the limiting groove 207. The side plate 202 is set perpendicular to the main board 201. The left end of the connector 203 is moved along the right end of the connector 203 into the second groove 208. The worker presses the side plate 202 into the through groove 205 of the main board 201 to restrict the side plate 201 within the through groove 205. The main board is then moved into the top cover 102.

[0060] More preferably, a third groove 209 is provided on the outer side surface of the side plate 202.

[0061] In one embodiment of the present invention, such as Figure 4 As shown, after the side panel 202 is stored on the main board 201, the side of the side panel 202 facing the ground is the outer side. A third groove 209 is provided on the outer side. Workers can insert their fingers into the third groove 209 to facilitate the movement of the side panel 202 from the main board 201, which is equivalent to an invisible handle.

[0062] More preferably, the side of the cabinet 100 is provided with a movable handle 105.

[0063] In one embodiment of the present invention, such as Figure 1 , Figure 2 As shown, both sides of the cabinet 100 are equipped with movable handles 105, which facilitate workers to move, repair, and transport the cabinet quickly and easily.

[0064] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention includes, but is not limited to, the embodiments described in the specific implementation. Any other implementations derived by those skilled in the art based on the technical solutions of this invention are also within the scope of protection of this invention.

Claims

1. A switchgear for a transformer, characterized in that: Includes a cabinet (100) and protective devices (200); The top of the cabinet (100) is provided with a top cover (101), and the side of the top cover (101) is provided with a receiving cavity (102) for accommodating the protective device (200); The protective device (200) includes a main board (201), a side plate (202), and a connector (203); the side plate (202) is connected to the main board (201), one end of the connector (203) is connected to the main board (201), and the other end of the connector (203) is connected to the side plate (202); The side of the motherboard (201) is slidably connected to the side of the receiving cavity (102); The main board (201) is provided with a slider (204); the side of the receiving cavity (102) is provided with a first groove (103) that matches the slider (204); A limiting piece (104) is provided at the opening of the receiving cavity (102).

2. A switchgear for a transformer according to claim 1, characterized in that: The main board (201) is provided with a through groove (205) for accommodating the side plate (202), and the side of the through groove (205) is provided with a limiting protrusion (206); One end of the side plate (202) is rotatably connected in the through groove (205).

3. A switchgear for a transformer according to claim 2, characterized in that: The motherboard (201) is provided with a limiting groove (207), and one end of the connector (203) is connected to the limiting groove (207).

4. A switchgear for a transformer according to claim 3, characterized in that: The inner side of the side plate (202) is provided with a second groove (208) for accommodating the connector (203); the other end of the connector (203) is connected to one end of the second groove (208).

5. A switchgear for a transformer according to claim 4, characterized in that: The side plate (202) has a third groove (209) on its outer side surface.

6. A switchgear for a transformer according to claim 5, characterized in that: The cabinet (100) is provided with a movable handle (105) on its side.

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