A combined high-low voltage switchgear

Abstract

The utility model belongs to the technical field of switch cabinet, concretely is a kind of combined high-low voltage switch cabinet, including switch cabinet body, still include: connecting component, connecting component includes the U-shaped seat and fixed seat respectively fixed in the left and right sides of switch cabinet body, the opening of U-shaped seat is towards outside and is aligned with the fixed seat of adjacent switch cabinet body, U-shaped seat is movably connected with plug block, and fixed seat is provided with the slot of cooperation with plug block;Air inlet pipe, bottom end penetrates the top plate of switch cabinet body and is fixedly connected with switch cabinet body, top end is sealedly connected with the bottom interface of three-way connector, and the left and right interfaces of three-way connector are fixedly provided with connecting flange, and three-way ball valve is installed in three-way connector;The utility model replaces traditional bolt connection by detachable connecting component, simplifies cabinet body connection and separation process, improves the efficiency of later maintenance and system expansion;While the heat dissipation system of multiple switch cabinet bodies is integrated into unified ventilation circuit, cold air uniform distribution and centralized delivery are realized.

Description

Technical Field

[0001] This utility model belongs to the field of switch cabinet technology, and more specifically, it relates to a combined high and low voltage switch cabinet. Background Technology

[0002] High and low voltage switchgear is an important device in the power system for distributing electrical energy, controlling and protecting power equipment. In practical applications, in order to meet the capacity expansion and functional integration requirements of different power consumption scenarios, it is often necessary to combine multiple switchgear units in parallel to build a power distribution system and form a large-scale switchgear array. Currently, most existing modular switch cabinets use bolts to connect the cabinets. When performing equipment maintenance, replacement, or expansion, operators must disassemble and reassemble multiple bolts one by one, which is cumbersome, time-consuming, and inefficient. This not only increases maintenance time and labor costs but also makes it inconvenient for later maintenance or expansion.

[0003] To address the aforementioned issues, this application proposes a combined high- and low-voltage switchgear. Utility Model Content

[0004] The purpose of this utility model is to provide a combined high and low voltage switchgear that solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model relates to a combined high and low voltage switchgear, comprising at least two switchgear units arranged side by side, and further comprising: A connecting assembly for enabling detachable connection of adjacent switch cabinets includes a U-shaped seat and a fixed seat respectively fixed on the left and right sides of the switch cabinet. The opening of the U-shaped seat faces outward and is aligned with the fixed seat of the adjacent switch cabinet. The U-shaped seat is movably connected to a plug, and the fixed seat has a slot that mates with the plug. The air intake pipe is fixed to the top plate of the switch cabinet at the bottom and sealed to the switch cabinet body at the top. The top of the pipe is sealed to the bottom interface of the three-way connector. Both the left and right interfaces of the three-way connector are fixed with connecting flanges, and a three-way ball valve is installed inside the three-way connector.

[0006] Furthermore, the U-shaped seat has a U-shaped groove, and two sliding plates are symmetrically arranged in the U-shaped groove. The sliding plates are fixedly connected to the insert block through a connecting block. The insert block is slidably arranged in the receiving groove of the U-shaped seat, and the connecting block is slidably connected to the U-shaped seat.

[0007] Furthermore, a bidirectional screw rod that is threadedly connected to the sliding plate is rotatably installed in the U-shaped groove, and a guide rod that is slidably connected to the sliding plate is fixed in the U-shaped groove, with the guide rod being arranged parallel to the bidirectional screw rod.

[0008] Furthermore, an outer protective shell is fixedly provided on the front side of the insert block, and two meshing small gears and large gears are provided inside the outer protective shell. The small gears are fixedly connected to the bidirectional screw through a connecting shaft one, and the large gears are fixedly provided on the outer wall of the connecting shaft two, and one end of the connecting shaft two is rotatably connected to the outer wall of the insert block. A control handwheel is provided on the front side of the outer protective shell, and the control handwheel is fixedly connected to the connecting shaft two through a connecting shaft three.

[0009] Furthermore, the mounting base is fixedly connected to the outer wall of the switch cabinet via a mounting plate.

[0010] Furthermore, air vents are provided at the lower ends of both the left and right side walls of the switch cabinet, and exhaust hoods are fixedly provided on both the left and right side walls of the switch cabinet. The exhaust hoods have a main exhaust channel that runs through their rear side, and the exhaust hoods also have branch exhaust channels for connecting the main exhaust channel and the air vents.

[0011] Furthermore, a dustproof net is fixed at the exhaust port of the exhaust hood to prevent dust from entering the main exhaust duct.

[0012] This utility model has the following beneficial effects: This utility model sets up a connecting component consisting of a U-shaped base and a fixed base. Adjacent switch cabinets are mechanically connected by the insertion and engagement of plugs and slots, replacing the traditional bolt connection method. This simplifies the process of parallel connection and separation of cabinets and improves the efficiency of later maintenance, repair or system expansion and renovation. This invention integrates the heat dissipation systems of multiple parallel cabinets into a complete ventilation circuit by setting an air inlet pipe and a three-way connector above the switch cabinet and sealing the air ducts of adjacent cabinets with connecting pipes, and finally connecting them to the air outlet of the fan. This achieves uniform distribution and centralized delivery of cold air, which not only improves the heat dissipation rate of the switch cabinet, but also avoids the problem of uneven heat dissipation efficiency of traditional independent cabinets.

[0013] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model; Figure 2 This is a schematic diagram of the switch cabinet structure of this utility model; Figure 3This is a cross-sectional view of the U-shaped seat of this utility model; Figure 4 This is a cross-sectional view of the exhaust hood of this utility model; The attached diagram lists the components represented by each number as follows: In the diagram: 1. Switch cabinet; 101. Air outlet groove; 2. U-shaped base; 201. U-shaped groove; 202. Receiving groove; 3. Insert block; 4. Connecting block; 5. Sliding plate; 501. Guide rod; 6. Two-way screw; 7. Fixed base; 701. Slot; 702. Fixed plate; 8. Air inlet pipe; 9. T-joint; 10. Exhaust hood; 1001. Main exhaust duct; 1002. Sub-exhaust duct; 11. Dustproof net; 12. Small gear; 1201. Connecting shaft one; 13. Large gear; 1301. Connecting shaft two; 14. Control handwheel; 1401. Connecting shaft three; 15. Outer casing. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements 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 this utility model.

[0018] Please see Figure 1 - Figure 4 As shown, this utility model is a combined high and low voltage switchgear, including at least two switchgear bodies 1 arranged side by side, and further including: a connection component for realizing the detachable connection of adjacent switchgear bodies 1, the connection component including a U-shaped seat 2 and a fixed seat 7 respectively fixed on the left and right sides of the switchgear body 1, the opening of the U-shaped seat 2 facing outward and aligned with the fixed seat 7 of the adjacent switchgear body 1, the U-shaped seat 2 being movably connected to the plug 3, and the fixed seat 7 having a slot 701 that mates with the plug 3; an air inlet pipe 8, the bottom end of which penetrates the top plate of the switchgear body 1 and is fixedly connected to the switchgear body 1, and the top end being sealed to the bottom interface of the three-way connector 9, both the left and right interfaces of the three-way connector 9 being fixedly provided with connecting flanges, and a three-way ball valve being installed inside the three-way connector 9; This embodiment provides a combined high and low voltage switchgear. The connecting components are used to realize the quick assembly and disassembly of adjacent cabinets. The U-shaped base 2 is fixedly connected to the outer wall of the switchgear 1. The fixing base 7 is fixedly connected to the outer wall of the switchgear 1 through the fixing plate 702. The connection between adjacent cabinets is realized by the insertion of the plug 3 and the slot 701. One side interface of the tee connector 9 on one edge of the switchgear is sealed to the air outlet duct through the connecting flange. The adjacent interfaces of the tee connector 9 on the adjacent switchgear 1 are sealed and connected to the pipeline through the connecting flange. A handwheel connected to the tee ball valve is provided above the tee connector 9. The tee ball valve is controlled by the handwheel to control the opening and closing of the interface of the tee connector 9.

[0019] The U-shaped base 2 has a U-shaped groove 201, and two sliding plates 5 are symmetrically arranged in the U-shaped groove 201. The sliding plates 5 are fixedly connected to the insert block 3 through the connecting block 4. The insert block 3 is slidably arranged in the receiving groove 202 of the U-shaped base 2. The connecting block 4 is slidably connected to the U-shaped base 2. A bidirectional screw 6 that is threadedly connected to the sliding plate 5 is rotatably installed in the U-shaped groove 201. A guide rod 501 that is slidably connected to the sliding plate 5 is fixed in the U-shaped groove 201. The guide rod 501 is arranged parallel to the bidirectional screw 6. Rotating the bidirectional screw 6 can drive the two sliding plates 5 to move synchronously in opposite directions along the axial direction of the guide rod 501, which further drives the insert block 3 to insert into or disengage from the slot 701 of the adjacent cabinet, so as to realize the quick installation and unlocking of the adjacent cabinet.

[0020] The insert 3 is fixedly provided with an outer protective shell 15 on the front side, and the outer protective shell 15 is provided with two meshing small gears 12 and large gears 13. The small gears 12 are fixedly connected to the bidirectional screw 6 through a connecting shaft 1201. The large gears 13 are fixedly provided on the outer wall of the connecting shaft 2 1301, and one end of the connecting shaft 2 1301 is rotatably connected to the outer wall of the insert 3. The outer protective shell 15 is provided with a control handwheel 14, and the control handwheel 14 is fixedly connected to the connecting shaft 2 1301 through a connecting shaft 3 1401. Rotating the control handwheel 14 can drive the large gear 13 to rotate, and further drive the bidirectional screw 6 to rotate through the small gear 12. The design of the small gears 12 and the large gears 13 makes the position of the control handwheel 14 set in the middle of the two adjacent switch cabinets 1, so as to avoid the control handwheel 14 being too close to the side wall of the switch cabinet 1 and inconvenient to operate.

[0021] The switch cabinet 1 has air vents 101 at the lower ends of both sides of its left and right side walls, and exhaust hoods 10 are fixed to both sides of its left and right side walls. Each exhaust hood 10 has a main exhaust duct 1001 that runs through its rear side, and it also has a branch exhaust duct 1002 that connects the main exhaust duct 1001 and the air vents 101. The cold air supplied by the external fan is distributed to each switch cabinet 1 through the cooperation of the three-way connector 9, the air inlet pipe 8 and the connecting pipe. Then, it flows into the main exhaust duct 1001 through the air vents 101 and the branch exhaust ducts 1002 and is discharged from the rear side, so as to avoid mutual interference when the air is discharged between adjacent cabinets.

[0022] The exhaust hood 10 is equipped with a dustproof net 11 at its exhaust port to block dust from entering the main exhaust duct 1001 and prevent dust from entering the switch cabinet 1 through the exhaust hood 10, thus ensuring the cleanliness of the electrical equipment inside the cabinet.

[0023] It is understood that this utility model simplifies the cabinet connection and separation process by replacing the traditional bolt connection with a detachable connection component, and improves the efficiency of later maintenance, repair and system expansion; at the same time, it integrates the heat dissipation system of multiple switch cabinets 1 into a unified ventilation circuit to achieve uniform distribution and centralized delivery of cold air.

[0024] A specific application of the operation process of this embodiment is as follows: The combined high and low voltage switchgear is composed of multiple switchgear bodies 1 arranged side by side; taking two switchgear bodies 1 as an example, a U-shaped seat 2 is fixedly provided on the left side of the right switchgear body, and a fixed seat 7 is fixedly provided on the right side of the left switchgear body, with the opening of the U-shaped seat 2 facing left and aligned with the fixed seat 7. During installation, the fixed base 7 is made to fit the opening of the U-shaped base 2. The control handwheel 14 is turned, which drives the large gear 13 to rotate through the connecting shaft 3 1401 and the connecting shaft 2 1301. The large gear 13 is further driven to rotate through the small gear 12 and the connecting shaft 1 1201. The two sliding plates 5 move towards each other along the guide rod 501, which drives the plug block 3 to be inserted into the slot 701, thus completing the connection between adjacent cabinets. The right-side interface of the tee connector 9 on the upper part of the right-side switch cabinet 1 is sealed to the air outlet pipe of the fan through a connecting flange. The left-side interface is sealed to the right-side interface of the tee connector 9 on the upper part of the left-side switch cabinet 1 through a connecting flange to connect the pipeline. The interface of the left-side tee connector 9 connected to the outside is closed by controlling the tee ball valve (when multiple switch cabinets 1 are fixedly connected, the interface of the tee connector 9 connected to the outside is closed). All other interfaces form a passage with the pipeline. When the fan is started, cold air enters the switch cabinet 1 through the air inlet pipe 8. After flowing through the electrical equipment, the air is heated. The hot air enters the branch exhaust channel 1002 of the exhaust hood 10 from the air outlet slot 101, merges into the main exhaust channel 1001, and is discharged from the rear side of the exhaust hood 10. During disassembly, simply reverse the control handwheel 14 to drive the plug block 3 to disengage from the slot 701, and the adjacent switch cabinet 1 can be separated.

[0025] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A combined high- and low-voltage switchgear, comprising at least two switchgear bodies (1) arranged side by side, characterized in that, Also includes: The connection assembly for realizing the detachable connection of adjacent switch cabinets (1) includes a U-shaped seat (2) and a fixed seat (7) respectively fixed on the left and right sides of the switch cabinet (1). The opening of the U-shaped seat (2) faces outward and is aligned with the fixed seat (7) of the adjacent switch cabinet (1). The U-shaped seat (2) is movably connected to the plug (3), and the fixed seat (7) has a slot (701) that mates with the plug (3). The air inlet pipe (8) is fixed to the top plate of the switch cabinet (1) at the bottom and sealed to the bottom interface of the three-way connector (9) at the top. Both the left and right interfaces of the three-way connector (9) are fixed with connecting flanges, and a three-way ball valve is installed inside the three-way connector (9).

2. The combined high and low voltage switchgear according to claim 1, characterized in that: The U-shaped seat (2) has a U-shaped groove (201) and two sliding plates (5) are symmetrically arranged in the U-shaped groove (201). The sliding plates (5) are fixedly connected to the insert (3) through the connecting block (4). The insert (3) is slidably arranged in the receiving groove (202) opened in the U-shaped seat (2). The connecting block (4) is slidably connected to the U-shaped seat (2).

3. A combined high and low voltage switchgear according to claim 2, characterized in that: A bidirectional screw (6) that is threadedly connected to the sliding plate (5) is rotatably installed in the U-shaped groove (201). A guide rod (501) that is slidably connected to the sliding plate (5) is fixed in the U-shaped groove (201), and the guide rod (501) is set parallel to the bidirectional screw (6).

4. A combined high- and low-voltage switchgear according to claim 3, characterized in that: The insert (3) is fixedly provided with an outer protective shell (15) on the front side, and two meshing small gears (12) and large gears (13) are provided inside the outer protective shell (15). The small gears (12) are fixedly connected to the bidirectional screw (6) through the first connecting shaft (1201). The large gears (13) are fixedly provided on the outer wall of the second connecting shaft (1301), and one end of the second connecting shaft (1301) is rotatably connected to the outer wall of the insert (3). The outer protective shell (15) is provided with a control handwheel (14) on the front side, and the control handwheel (14) is fixedly connected to the second connecting shaft (1301) through the third connecting shaft (1401).

5. A combined high and low voltage switchgear according to claim 1, characterized in that: The mounting base (7) is fixedly connected to the outer wall of the switch cabinet (1) via a mounting plate (702).

6. A combined high and low voltage switchgear according to claim 1, characterized in that: The switch cabinet (1) has air vents (101) at the lower ends of both sides of the switch cabinet (1), and exhaust hoods (10) are fixed on both sides of the switch cabinet (1). The exhaust hoods (10) have a main exhaust channel (1001) that runs through the rear side of the exhaust hoods (10), and the exhaust hoods (10) also have a branch exhaust channel (1002) for connecting the main exhaust channel (1001) and the air vents (101).

7. A combined high- and low-voltage switchgear according to claim 6, characterized in that: The exhaust hood (10) is equipped with a dustproof net (11) at the exhaust port to prevent dust from entering the main exhaust duct (1001).

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