Middle-mounted high-low voltage switch power distribution cabinet
By designing an insulation protection device in the mid-mounted high and low voltage switch distribution cabinet and wrapping the transformer connector with a rubber sheath, the faults and fire problems caused by the aging of the insulating rubber sleeve of the traditional distribution cabinet are solved, and the insulation performance and safety are significantly improved.
Patent Information
- Application Number
- CN202323282819.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-04
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-04
AI Technical Summary
The insulating rubber sleeve at the transformer joints of the traditional mid-mounted high and low voltage switch distribution cabinet is aging, resulting in a degradation of insulation performance, prone to failure and leakage, which in turn causes fire.
An insulation protection device is designed. When the drawer door is completely closed, a thick rubber sheath completely wraps the top joint of the transformer to enhance insulation performance and reduce faults and leakage. The device includes an inner top plate, clamp rod, spring, sheath and push rod, and the full wrapping of the joint is achieved through sliding and spring cooperation.
It effectively enhances the insulation performance between the transformer connector and the high and low voltage wiring, reduces faults and leakage, and avoids fire.
Smart Images
Figure CN222301252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of high and low voltage switch distribution cabinets, in particular to a centrally mounted high and low voltage switch distribution cabinet. Background Art
[0002] A center-mounted high and low voltage switch distribution cabinet is a type of power distribution equipment used in power systems, usually including high voltage switchgear and low voltage switchgear. The main function of the center-mounted high and low voltage switch distribution cabinet is to distribute the transmitted high voltage electric energy to each low voltage user end, while realizing the protection and control of the electric energy.
[0003] The existing technology has the following shortcomings: the centrally mounted high and low voltage switch distribution cabinet reduces the high voltage electric energy to the low voltage electric energy required by the user through the transformer installed inside. Since the transformer joints of the traditional distribution cabinet are wrapped with conventional insulating rubber sleeves to connect the high and low voltage lines, the thin insulating rubber sleeves at the transformer joints will age after long-term use, resulting in a decrease in insulation performance, which is prone to failure and leakage, thereby causing fire.
[0004] Therefore, it is necessary to invent a centrally mounted high and low voltage switch distribution cabinet. Utility Model Content
[0005] To this end, the utility model provides a centrally mounted high and low voltage switch distribution cabinet. Through the insulation protection device in the distribution cabinet shell, when the drawer door is fully closed, the thick rubber sheath completely wraps the top surface joint of the transformer, thereby strengthening the insulation performance between the transformer joint and the high and low voltage wiring. This solves the problem that the conventional distribution cabinet's transformer joints use conventional insulating rubber sleeves to wrap and connect high and low voltage lines. After long-term use, the thin insulating rubber sleeves at the transformer joints age and cause the insulation performance to decrease, which is prone to failures and leakage, thereby causing fires.
[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centrally mounted high and low voltage switch distribution cabinet, comprising a shell, the front face of the shell is provided with an opening, the bottom face of the inner wall of the shell is provided with a slide groove, the bottom face of the inner wall of the shell is provided with a slide plate slidably mounted thereon, the slide plate can be pulled out along the slide groove on the bottom face of the inner wall of the shell, a draw door is fixedly mounted on one end of the shell through which the slide plate is pulled out, the draw door can completely close the front face opening of the shell, a transformer is fixedly mounted on the top face of the slide plate, a joint is provided on the top face of the transformer, an insulation protection device is provided on the top face of the inner wall of the shell, the insulation protection device can insulate and protect the joint on the top face of the transformer when the draw door is completely closed.
[0007] Preferably, the insulation protection device includes an inner top plate, which is fixedly mounted on the top surface of the inner wall of the shell, and is provided with four slide grooves perpendicular to the drawer door on the top surface of the inner top plate, and openings penetrating the inner top plate are provided at both ends of the bottom surface of the inner wall of the slide groove on the top surface of the inner top plate, and three grooves are opened between the two slide grooves on one side of the top surface of the inner top plate, and three grooves are also opened between the two slide grooves on the other side of the top surface of the inner top plate.
[0008] Preferably, the insulation protection device includes a clamping rod, which is a U-shaped structure. The middle part of the clamping rod is slidably installed in the slide groove on the top surface of the inner top plate. The sliding direction of the clamping rod is perpendicular to the slide groove on the top surface of the inner top plate. Both ends of the clamping rod extend downward to the inner wall of the shell through the opening on the bottom surface of the inner wall of the slide groove on the top surface of the inner top plate.
[0009] Preferably, the insulation protection device includes a spring, and the spring is arranged in a groove between the slide grooves on the top surface of the inner top plate, and the two ends of the spring are respectively fixedly connected to the clamping rods in the slide grooves on both sides of the groove on the top surface of the inner top plate.
[0010] Preferably, the insulating protection device includes a sheath, which is fixedly mounted on the two ends of the clamp rod extending downward to the inner wall of the shell, the sheath is close to the top surface of the shell and is arranged on both sides of the joint, and the sheath at the lower end of the clamp rod in the sliding grooves on both sides of the same groove on the top surface of the inner top plate can be assembled with each other to wrap the joint.
[0011] Preferably, the insulation protection device includes a push rod, which is fixedly mounted on the top surface of the drawer door close to the shell, and is arranged on both sides of the clamping rod. A smooth curved protrusion is arranged on one side of the push rod close to the clamping rod.
[0012] Preferably, a handle is fixedly installed on the side of the drawer door away from the shell, a pulley is fixedly installed on the bottom surface of the skateboard close to the drawer door, a base is fixedly installed on the bottom surface of the shell, and a notch capable of embedding the pulley is provided on the side of the base close to the drawer door.
[0013] Preferably, a handle is fixedly installed on the side of the drawer door away from the shell, a pulley is fixedly installed on the bottom surface of the skateboard close to the drawer door, a base is fixedly installed on the bottom surface of the shell, and a notch capable of embedding the pulley is provided on the side of the base close to the drawer door.
[0014] The beneficial effect of the utility model is that through the insulation protection device in the distribution cabinet shell, when the drawer door is fully closed, the thick rubber sheath completely wraps the top surface joint of the transformer, so as to achieve the effect of strengthening the insulation performance between the transformer joint and the high and low voltage wiring, reduce faults and leakage phenomena, and avoid causing fire problems. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view of a centrally mounted high and low voltage switch distribution cabinet provided by the utility model;
[0016] Figure 2 A schematic diagram of the drawer door extraction structure of a centrally mounted high and low voltage switch distribution cabinet provided by the utility model;
[0017] Figure 3 A cross-sectional view of a housing of a centrally mounted high and low voltage switch distribution cabinet provided by the utility model with the drawer door drawn out;
[0018] Figure 4 A top view of the inner top plate of a centrally mounted high and low voltage switch distribution cabinet provided by the utility model;
[0019] Figure 5 A bottom view of the inner top plate of a centrally mounted high and low voltage switch distribution cabinet provided by the utility model;
[0020] Figure 6 The utility model provides an exploded cross-sectional view of a heat dissipation system of a center-mounted high and low voltage switch distribution cabinet.
[0021] In the figure: housing 11, wiring hole 12, base 13, cooling fan 14, vent 15, cooling hole 16, drawer door 21, handle 22, slide plate 23, pulley 24, push rod 25, inner top plate 26, spring 27, clamping rod 28, sheath 29, transformer 31, connector 32. DETAILED DESCRIPTION
[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0023] Example 1
[0024] like Figure 1-Figure 3 As shown, a centrally mounted high and low voltage switch distribution cabinet in an embodiment of the first aspect of the utility model comprises a shell 11, the front of the shell 11 is provided with an opening, the bottom surface of the inner wall of the shell 11 is provided with a slide groove, the bottom surface of the inner wall of the shell 11 comprises a slide plate 23 slidably installed, the slide plate 23 can be pulled out along the slide groove on the bottom surface of the inner wall of the shell 11, and a drawer door 21 is fixedly installed at one end of the shell 11 out of which the slide plate 23 is pulled out, and the drawer door 21 can completely close the front opening of the shell 11, a transformer 31 is fixedly installed on the top surface of the slide plate 23, a joint 32 is provided on the top surface of the transformer 31, and an insulation protection device is provided on the top surface of the inner wall of the shell 11, and the insulation protection device can insulate and protect the joint 32 on the top surface of the transformer 31 when the drawer door 21 is completely closed.
[0025] In the above embodiment, it should be noted that the shell 11 is a metal shell, the slide plate 23 is a metal slide plate, the drawer door 21 is a metal drawer door, and the connector 32 on the top surface of the transformer 31 is divided into a high-voltage connector and a low-voltage connector, which are respectively connected to the high-voltage wire and the low-voltage wire. Through the insulation protection device in the shell of the distribution cabinet, when the slide plate 23 drives the drawer door 21 to be fully closed, the thick rubber sheath completely wraps the connector 32 on the top surface of the transformer 31, so as to achieve the effect of strengthening the insulation performance between the connector 32 and the high and low voltage wiring, reduce faults and leakage phenomena, and avoid causing fire and other problems.
[0026] Example 2
[0027] like Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, a centrally mounted high and low voltage switch distribution cabinet includes all the contents of embodiment 1. In addition, the insulation protection device includes an inner top plate 26, the inner top plate 26 is fixedly mounted on the inner wall top surface of the housing 11, the inner top plate 26 is provided with four slide grooves perpendicular to the drawer door 21, the inner top plate 26 is provided with openings penetrating the inner top plate 26 at both ends of the inner wall bottom surface of the slide groove on the top surface of the inner top plate 26, three grooves are provided between the two slide grooves on one side of the top surface of the inner top plate 26, and three grooves are also provided between the two slide grooves on the other side of the top surface of the inner top plate 26. The insulation protection device includes an inner top plate 26, ... The device includes a clamping rod 28, which is a U-shaped structure. The middle part of the clamping rod 28 is slidably installed in the slide groove on the top surface of the inner top plate 26. The sliding direction of the clamping rod 28 is perpendicular to the slide groove on the top surface of the inner top plate 26. The two ends of the clamping rod 28 pass through the opening on the bottom surface of the inner wall of the slide groove on the top surface of the inner top plate 26 and extend downward to the inner wall of the shell 11. The insulation protection device includes a spring 27, which is arranged in a groove between the slide grooves on the top surface of the inner top plate 26. The two ends of the spring 27 are respectively fixedly connected to the clamping rod 28 in the slide grooves on both sides of the groove on the top surface of the inner top plate 26.
[0028] In the above embodiment, it should be noted that the inner top plate 26 is a metal top plate, and the clamp rod 28 is a metal clamp rod. The spring 27 always provides the clamp rod 28 with a force to slide along the inner wall of the slide groove on the top surface of the inner top plate 26 toward the side away from the spring 27, so as to achieve the effect of pushing the clamp rod 28 to expand toward both sides of the spring 27.
[0029] Example 3
[0030] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, a centrally mounted high and low voltage switch distribution cabinet includes all the contents of Example 2. In addition, the insulating protection device includes a sheath 29, and the sheath 29 is fixedly mounted on the two ends of the clamp rod 28 extending downward to the inner wall of the shell 11. The sheath 29 is close to the top surface of the shell 11 and is arranged on both sides of the joint 32. The sheath 29 at the lower end of the clamp rod 28 in the slide grooves on both sides of the same groove on the top surface of the inner top plate 26 can be assembled with each other to wrap the joint 32. The insulating protection device includes a push rod 25, and the push rod 25 is fixedly mounted on the top surface of one side of the drawer 21 close to the shell 11. The push rod 25 is arranged on both sides of the clamp rod 28, and a smooth curved protrusion is provided on the side of the push rod 25 close to the clamp rod 28.
[0031] In the above embodiment, it should be noted that the sheath 29 is an insulating rubber sheath that can completely fit the surface of the connector 32. A round hole is reserved on the top surface of the sheath 29 for the access of high and low voltage wires. The push rod 25 is a metal push rod. When the slide plate 23 drives the drawer door 21 to slide and close, the drawer door 21 pushes the push rod 25 to move into the shell 11. The protrusion on the surface of the push rod 25 squeezes the clamping rod 28 on both sides of the spring 27. The spring 27 is compressed, and the clamping rod 28 drives the sheath 29 to move to the side close to the spring 27, so as to achieve the effect of driving the sheath 29 to completely wrap the surface of the connector 32.
[0032] Example 4
[0033] like Figure 1-Figure 3 As shown, a centrally mounted high and low voltage switch distribution cabinet includes all the contents of Example 1. In addition, a handle 22 is fixedly installed on the side of the drawer door 21 away from the shell 11, a pulley 24 is fixedly installed on the bottom surface of the slide plate 23 close to the drawer door 21, and a base 13 is fixedly installed on the bottom surface of the shell 11, and a notch capable of embedding the pulley 24 is provided on the side of the base 13 close to the drawer door 21.
[0034] In the above embodiment, it should be noted that the handle 22 has the effect of facilitating pulling and pushing the drawer door 21 , and the pulley 24 has the effect of driving the slide plate 23 to slide.
[0035] Example 5
[0036] like Figure 6 As shown, a centrally mounted high and low voltage switch distribution cabinet includes all the contents of Example 1. In addition, a wiring hole 12 is provided on the side of the outer wall of the shell 11 away from the drawer door 21, and ventilation holes 15 and heat dissipation holes 16 are provided on both sides of the outer wall of the shell 11. The ventilation holes 15 are arranged above the heat dissipation holes 16, and a cooling fan 14 is fixedly installed on the inner wall of the shell 11 near the heat dissipation holes 16.
[0037] In the above embodiment, it should be noted that the high and low voltage wiring of the access connector 32 can extend out of the shell 11 through the wiring hole 12, and the hot air in the shell 11 can be discharged from the heat dissipation hole 16 by starting the heat dissipation fan 14, while cold air enters from the vent 15, so as to achieve the effect of heat dissipation in the shell 11 and the surface of the transformer 31.
[0038] The use process of the utility model is as follows: a technician in this field passes the high and low voltage wiring into the inner wall of the shell 11 from the wiring hole 12 and connects it to the joint 32, holds the handle 12 to push the drawer 21, and the drawer 21 drives the slide plate 23 to slide and close. At the same time, the drawer 21 pushes the push rod 25 to move into the shell 11, and the protrusions on the surface of the push rod 25 squeeze the clamping rod 28 on both sides of the spring 27. The spring 27 is compressed, and the clamping rod 28 drives the sheath 29 to move to the side close to the spring 27 and completely wraps the surface of the joint 32 to enhance the insulation performance of the high and low voltage wiring and the joint 32.
[0039] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.
Claims
1. A centrally mounted high and low voltage switch distribution cabinet, comprising a housing (11), the housing (11) having an opening on the front, the housing (11) having a slide groove on the bottom surface of the inner wall, the housing (11) having a slide plate (23) slidably mounted on the bottom surface of the inner wall of the housing (11), the slide plate (23) being capable of being drawn out along the slide groove on the bottom surface of the inner wall of the housing (11), a draw door (21) being fixedly mounted on one end of the slide plate (23) drawn out of the housing (11), the draw door (21) being capable of completely closing the opening on the front surface of the housing (11), a transformer (31) being fixedly mounted on the top surface of the slide plate (23), the transformer (31) having a joint (32) on the top surface, characterized in that: An insulation protection device is provided on the top surface of the inner wall of the housing (11), and the insulation protection device can insulate and protect the top surface joint (32) of the transformer (31) when the drawer door (21) is fully closed.
2. A centrally mounted high and low voltage switch distribution cabinet according to claim 1, characterized in that: The insulation protection device comprises an inner top plate (26), the inner top plate (26) being fixedly mounted on the top surface of the inner wall of the shell (11), the top surface of the inner top plate (26) being provided with four slide grooves perpendicular to the drawer door (21), both ends of the bottom surface of the inner wall of the slide grooves on the top surface of the inner top plate (26) being provided with openings penetrating the inner top plate (26), three grooves being provided between the two slide grooves on one side of the top surface of the inner top plate (26), and three grooves being provided between the two slide grooves on the other side of the top surface of the inner top plate (26).
3. A centrally mounted high and low voltage switch distribution cabinet according to claim 2, characterized in that: The insulation protection device comprises a clamping rod (28), the clamping rod (28) is a U-shaped structure, the middle part of the clamping rod (28) is slidably installed in the top surface slide groove of the inner top plate (26), the sliding direction of the clamping rod (28) is perpendicular to the top surface slide groove of the inner top plate (26), and the two ends of the clamping rod (28) pass through the opening of the bottom surface of the inner wall of the top surface slide groove of the inner top plate (26) and extend downward to the inner wall of the shell (11).
4. A centrally mounted high and low voltage switch distribution cabinet according to claim 3, characterized in that: The insulation protection device comprises a spring (27), wherein the spring (27) is arranged in a groove between the sliding grooves on the top surface of the inner top plate (26), and the two ends of the spring (27) are respectively fixedly connected to the clamping rods (28) in the sliding grooves on both sides of the groove on the top surface of the inner top plate (26).
5. A centrally mounted high and low voltage switch distribution cabinet according to claim 4, characterized in that: The insulating protection device includes a sheath (29), and the sheath (29) is fixedly mounted on the two ends of the clamp rod (28) extending downward to the inner wall of the shell (11). The sheath (29) is close to the top surface of the shell (11) and is arranged on both sides of the joint (32). The sheath (29) at the lower end of the clamp rod (28) in the sliding grooves on both sides of the same groove on the top surface of the inner top plate (26) can be spliced together to wrap the joint (32).
6. A centrally mounted high and low voltage switch distribution cabinet according to claim 5, characterized in that: The insulating protection device comprises a push rod (25), wherein the push rod (25) is fixedly mounted on a top surface of a side of the drawer door (21) close to the housing (11), and the push rod (25) is arranged on both sides of a clamping rod (28). A smooth curved protrusion is arranged on a side of the push rod (25) close to the clamping rod (28).
7. A centrally mounted high and low voltage switch distribution cabinet according to claim 1, characterized in that: A handle (22) is fixedly mounted on the side of the drawer door (21) away from the housing (11); a pulley (24) is fixedly mounted on the bottom surface of the slide plate (23) on the side close to the drawer door (21); a base (13) is fixedly mounted on the bottom surface of the housing (11); and a notch capable of embedding the pulley (24) is provided on the side of the base (13) close to the drawer door (21).
8. A centrally mounted high and low voltage switch distribution cabinet according to claim 1, characterized in that: A wiring hole (12) is provided on a side of the outer wall of the shell (11) away from the drawer door (21), and ventilation holes (15) and heat dissipation holes (16) are provided on both sides of the outer wall of the shell (11), wherein the ventilation holes (15) are arranged above the heat dissipation holes (16), and a heat dissipation fan (14) is fixedly installed on the inner wall of the shell (11) near the heat dissipation holes (16).