Vacuum load switch of combined photovoltaic substation transformer

Abstract

The utility model relates to a combined photovoltaic substation transformer vacuum load switch, which comprises a transformer cabinet, a vacuum load switch main body, an equipment box and a cover plate, and is characterized in that a mounting assembly is arranged in the transformer cabinet; the mounting assembly comprises a bidirectional lead screw rotationally connected to the inner bottom wall of the transformer cabinet, connecting blocks are fixedly connected to the sides, close to the equipment box, of the threaded sleeve and the movable sleeve, and the top ends of the connecting blocks are fixedly connected with the left side and the right side of a cover plate. By arranging the mounting assembly and driving the bidirectional screw rod to rotate through the rotating shaft, the two threaded sleeves and the two movable sleeves drive the two cover plates to move towards each other, so that the front surface of the equipment box is completely covered, finally the vacuum load switch main body is limited and sealed, and meanwhile, the vacuum load switch main body is well protected. The installation process is simpler, time and labor are saved, and the effect of rapid installation can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum load switches, in particular to a combined photovoltaic substation transformer vacuum load switch. Background Art

[0002] A vacuum switch is a switch that detects the vacuum range, also known as a vacuum relay. It is a reliability and safety component. Vacuum switches are divided into three types: mechanical, semiconductor and gas bridge. Mechanical vacuum switches use mechanical displacement to determine changes in vacuum pressure. Semiconductor vacuum switches use semiconductor pressure sensors to detect changes in vacuum pressure and can directly convert the detected pressure signals into electrical signals. Vacuum load switches are generally installed inside the transformer of a combined photovoltaic substation. Chinese patent CN212209338U discloses an indoor high-voltage vacuum load switch, including an installation box, a protective cover, a connecting frame and a fixing frame. The hinge is hinged with a protective cover, the front end of the protective cover is rotatably connected to a rotating card, a fixing pin is welded on the front of the installation box, a bayonet is provided at the lower end of the rotating card, and the rotating bayonet of the rotating card is clamped on the outside of the fixing pin. The rear end of the installation box is fixedly connected to the connecting frame by bolts, and the rear end of the connecting frame is fixedly connected to the fixing frame by bolts, and the fixing frame is fixedly connected to the wall by bolts. The utility model can protect the high-voltage vacuum load switch, increase the convenience of installation, and does not affect the heat dissipation effect on the basis of dustproof and waterproof. It can effectively prevent moisture and dust from affecting the use of the high-voltage vacuum load switch, extend the service life of the high-voltage vacuum load switch, and improve the use effect. However, bolts are still used for installation, resulting in a large number of bolts to be tightened when installing the vacuum switch body, which is troublesome, time-consuming and labor-intensive, thereby reducing the installation efficiency. Therefore, a combined photovoltaic substation transformer vacuum load switch is proposed to solve the above-mentioned problems. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a combined photovoltaic substation transformer vacuum load switch, which solves the problem that when installing the vacuum switch body, a large number of bolts need to be tightened, which is troublesome, time-consuming and labor-intensive, thereby reducing the installation efficiency. To achieve the above purpose, the utility model provides the following technical solutions: a combined photovoltaic substation transformer vacuum load switch, including a transformer cabinet, a vacuum load switch body, an equipment box and a cover plate, a slide groove is provided inside the equipment box, and an installation component is provided inside the transformer cabinet; the installation component includes a bidirectional screw rod rotatably connected to the bottom wall of the transformer cabinet, the top of the bidirectional screw rod is fixedly connected to a rotating shaft with one end penetrating and extending to the outside of the transformer cabinet, the top of the rotating shaft is fixedly connected to a rotating disk, the outer surface of the bidirectional screw rod is threadedly sleeved with two threaded sleeves, the inner bottom wall of the transformer cabinet is fixedly connected to a fixed rod, the outer surface of the fixed rod is sleeved with a movable sleeve, the threaded sleeve and the movable sleeve are fixedly connected to a connecting block on one side close to the equipment box, and the top of the connecting block is fixedly connected to the left and right sides of the cover plate.

[0004] Furthermore, a cabinet door is provided on the front of the transformer cabinet, and a heat dissipation box is fixedly installed on the front of the cabinet door.

[0005] Furthermore, a heat dissipation port is provided on the front of the cabinet door, a heat dissipation fan for heat dissipation is fixedly installed on the outer surface of the heat dissipation box, and a plurality of heat dissipation holes are provided on the outer surface of the cover plate.

[0006] Furthermore, a switch controller is fixedly installed on the right side of the transformer cabinet, and the switch controller is electrically connected to the vacuum load switch body.

[0007] Furthermore, installation boxes are fixedly connected to the left and right sides of the inner wall of the transformer cabinet, and guide rails are fixedly installed on the inner side of the installation box.

[0008] Furthermore, a drying box is slidably connected to the inner side of the guide rail, and a desiccant for moisture-proofing is arranged inside the drying box.

[0009] Furthermore, through holes are provided on one side of the drying box and the installation box close to the equipment box, and a handle is fixedly connected to the front of the drying box.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0011] The combined photovoltaic substation transformer vacuum load switch is provided with an installation component. When in use, the installer only needs to push the vacuum load switch body into the slide groove inside the equipment box, and then rotate the turntable to drive the bidirectional screw to rotate through the rotating shaft, so that the two threaded sleeves and the two movable sleeves drive the two cover plates to move toward each other, and then completely cover the front of the equipment box, and finally limit and seal the vacuum load switch body, while providing good protection. Compared with the existing technology, there is no need to tighten a large number of bolts, and the installation process is simpler, time-saving and labor-saving, and the effect of quick installation can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the internal structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0014] Figure 3 This is a front view structural diagram of the installation box of the utility model.

[0015] In the figure: 1 transformer cabinet, 2 vacuum load switch body, 3 equipment box, 4 bidirectional screw rod, 5 rotating shaft, 6 turntable, 7 threaded sleeve, 8 fixed rod, 9 movable sleeve, 10 cover plate, 11 cabinet door, 12 heat dissipation box, 13 heat dissipation port, 14 heat dissipation fan, 15 heat dissipation hole, 16 switch controller, 17 installation box, 18 guide rail, 19 drying box, 20 desiccant, 21 through hole, 22 handle. DETAILED DESCRIPTION

[0016] 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 utility model. 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.

[0017] See also Figure 1-3In this embodiment, a combined photovoltaic substation transformer vacuum load switch includes a transformer cabinet 1, a vacuum load switch body 2, an equipment box 3 and a cover plate 10. A slide groove is provided inside the equipment box 3, and a mounting assembly is provided inside the transformer cabinet 1; the mounting assembly includes a bidirectional screw rod 4 rotatably connected to the inner bottom wall of the transformer cabinet 1, a rotating shaft 5 having one end penetrating and extending to the outside of the transformer cabinet 1 is fixedly connected to the top of the bidirectional screw rod 4, a rotating disk 6 is fixedly connected to the top of the rotating shaft 5, two threaded sleeves 7 are threadedly sleeved on the outer surface of the bidirectional screw rod 4, a fixed rod 8 is fixedly connected to the inner bottom wall of the transformer cabinet 1, a movable sleeve 9 is sleeved on the outer surface of the fixed rod 8, and the threaded sleeve 7 is close to the movable sleeve 9. A connecting block is fixedly connected to one side of the equipment box 3, and the top of the connecting block is fixedly connected to the left and right sides of the cover plate 10. By setting the installation component, when in use, the installer only needs to push the vacuum load switch body 2 into the slide groove inside the equipment box 3, and then rotate the turntable 6, and drive the bidirectional screw rod 4 to rotate through the rotating shaft 5, so that the two threaded sleeves 7 and the two movable sleeves 9 drive the two cover plates 10 to move toward each other, and then completely cover the front of the equipment box 3, and finally limit the vacuum load switch body 2 and seal it, and at the same time provide good protection. Compared with the existing technology, there is no need to tighten a large number of bolts, and the installation process is simpler, and it saves time and effort, and can achieve the effect of quick installation.

[0018] Among them, a cabinet door 11 is provided on the front of the transformer cabinet 1, a heat sink 12 is fixedly installed on the front of the cabinet door 11, a heat dissipation port 13 is provided on the front of the cabinet door 11, a heat dissipation fan 14 for heat dissipation is fixedly installed on the outer surface of the heat sink 12, and a plurality of heat dissipation holes 15 are provided on the outer surface of the cover plate 10. By arranging the heat dissipation fan 14 and the heat dissipation holes 15, the vacuum load switch body 2 in the equipment box 3 can be cooled, thereby avoiding excessive temperature and causing shutdown.

[0019] It should be noted that a switch controller 16 is fixedly installed on the right side of the transformer cabinet 1 , and the switch controller 16 is electrically connected to the vacuum load switch body 2 . By providing the switch controller 16 , it is convenient for the installer to operate and test the vacuum load switch body 2 .

[0020] It should be understood that the left and right sides of the inner wall of the transformer cabinet 1 are fixedly connected with installation boxes 17, the inner side of the installation box 17 is fixedly installed with guide rails 18, the inner side of the guide rails 18 is slidably connected with a drying box 19, and a desiccant 20 for moisture-proofing is arranged inside the drying box 19. The drying box 19 and the side of the installation box 17 close to the equipment box 3 are provided with through holes 21, and the front of the drying box 19 is fixedly connected with a handle 22. Through the cooperation of the through hole 21 and the desiccant 20, a moisture-proof effect can be achieved. At the same time, when the desiccant 20 has been used for a period of time, the staff only needs to open the cabinet door 11 and then pull the handle 22 outward to pull the drying box 19 out from the inner side of the guide rail 18, so as to replace the desiccant 20.

[0021] The working principle of the above embodiment is:

[0022] When installing the combined photovoltaic substation transformer vacuum load switch, the staff first needs to open the cabinet door 11 to expose the equipment box 3, and then just push the vacuum load switch body 2 into the slide groove inside the equipment box 3, and then rotate the turntable 6 to drive the bidirectional screw 4 to rotate through the rotating shaft 5, so that the two threaded sleeves 7 and the two movable sleeves 9 drive the two cover plates 10 to move toward each other, and then completely cover the front of the equipment box 3, and finally limit the vacuum load switch body 2 and seal it, and at the same time provide good protection. Compared with the existing technology, there is no need to tighten a large number of bolts, and the installation process is simpler, and it saves time and effort, and can achieve the effect of quick installation.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined photovoltaic substation transformer vacuum load switch, comprising a transformer cabinet (1), a vacuum load switch body (2), an equipment box (3) and a cover plate (10), characterized in that: A slide groove is provided inside the equipment box (3), and a mounting assembly is provided inside the transformer cabinet (1); the mounting assembly comprises a bidirectional screw rod (4) rotatably connected to the inner bottom wall of the transformer cabinet (1), the top of the bidirectional screw rod (4) is fixedly connected to a rotating shaft (5) having one end penetrating through and extending to the outside of the transformer cabinet (1), the top of the rotating shaft (5) is fixedly connected to a turntable (6), the outer surface of the bidirectional screw rod (4) is threadedly sleeved with two threaded sleeves (7), the inner bottom wall of the transformer cabinet (1) is fixedly connected to a fixed rod (8), the outer surface of the fixed rod (8) is sleeved with a movable sleeve (9), the threaded sleeve (7) and the movable sleeve (9) are fixedly connected to a connecting block on one side close to the equipment box (3), and the top of the connecting block is fixedly connected to the left and right sides of the cover plate (10).

2. A combined photovoltaic substation transformer vacuum load switch according to claim 1, characterized in that: The transformer cabinet (1) is provided with a cabinet door (11) on the front side, and a heat dissipation box (12) is fixedly mounted on the front side of the cabinet door (11).

3. A combined photovoltaic substation transformer vacuum load switch according to claim 2, characterized in that: The front of the cabinet door (11) is provided with a heat dissipation port (13), the outer surface of the heat dissipation box (12) is fixedly provided with a heat dissipation fan (14) for heat dissipation, and the outer surface of the cover plate (10) is provided with a plurality of heat dissipation holes (15).

4. A combined photovoltaic substation transformer vacuum load switch according to claim 1, characterized in that: A switch controller (16) is fixedly installed on the right side of the transformer cabinet (1), and the switch controller (16) is electrically connected to the vacuum load switch body (2).

5. The combined photovoltaic substation transformer vacuum load switch according to claim 1 is characterized in that: The left and right sides of the inner wall of the transformer cabinet (1) are fixedly connected with an installation box (17), and the inner side of the installation box (17) is fixedly installed with a guide rail (18).

6. A combined photovoltaic substation transformer vacuum load switch according to claim 5, characterized in that: A drying box (19) is slidably connected to the inner side of the guide rail (18), and a desiccant (20) for moisture prevention is arranged inside the drying box (19).

7. A combined photovoltaic substation transformer vacuum load switch according to claim 6, characterized in that: The drying box (19) and the installation box (17) are both provided with through holes (21) on one side close to the equipment box (3), and a handle (22) is fixedly connected to the front side of the drying box (19).

Images