CN112103782A - High-low voltage power distribution cabinet with safety protection function - Google Patents

Abstract

The invention provides a high and low voltage power distribution cabinet with safety protection function. The high and low voltage power distribution cabinet with safety protection function includes: a cabinet body and a mounting plate; and a connecting plate, wherein the connecting plate is fixedly connected to one side of the inner wall of the cabinet. The invention provides a high and low voltage power distribution cabinet with a safety protection function. By setting the protection structure, the wires in the power distribution cabinet can be safely protected. When the temperature of the wires is abnormal, the internal protection of the power distribution cabinet The structure performs power-off protection, and the residual current flows into the protective structure, making the protective structure in a power-off state, which can prevent the residual current from continuing to flow, thereby avoiding damage to other components and playing a good role in safety protection. As a second protective measure, the protective structure further cuts off the residual current after the protective structure of the power distribution cabinet itself fails to prevent the current from causing damage to other components, making the power distribution cabinet more secure.

Description

A high and low voltage power distribution cabinet with safety protection function

technical field

The invention relates to the field of high and low voltage power distribution cabinets, in particular to a high and low voltage power distribution cabinet with a safety protection function.

Background technique

High and low voltage power distribution cabinets, as the name implies, are power distribution equipment used for power distribution, control, measurement and connection of cables in the power supply system. Generally, power supply bureaus and substations use high voltage switch cabinets, and then step down the low voltage side through transformers. Lead out to low-voltage power distribution cabinets, low-voltage power distribution cabinets, and then to power distribution boards, control boxes, and switch boxes, where some switches, circuit breakers, fuses, buttons, indicator lights, meters, wires and other protection devices Equipment assembled into a power distribution device that meets the design functional requirements.

In the prior art, there are many types of high and low voltage power distribution cabinets. According to their internal structure and volume, their use environments are also different. For small outdoor high and low voltage power distribution cabinets, they are mainly installed in the external environment. Its overall structure design is simple, and the internal protection measures are relatively weak. During use, if the internal wires are burned out due to the high temperature caused by abnormal current, and the failure speed is too fast, other components may be burned together. So that the power distribution cabinet can not be used normally.

Therefore, it is necessary to provide a high and low voltage power distribution cabinet with a safety protection function to solve the above technical problems.

SUMMARY OF THE INVENTION

The invention provides a high and low voltage power distribution cabinet with safety protection function, which solves the problem that the internal protection measures of the existing small high and low voltage power distribution cabinet are relatively weak. Burned, making the power distribution cabinet unable to use normally.

In order to solve the above-mentioned technical problems, the high and low voltage power distribution cabinet with safety protection function provided by the present invention includes:

Cabinet and mounting plate;

a connecting plate, the connecting plate is fixedly connected to one side of the inner wall of the cabinet, the connecting plate is provided with a cable management plate, and one side of the cable management plate is provided with two installation slots;

A protective structure, the protective structure is arranged inside the installation groove, the protective structure includes a shell, and two sides of the inner wall of the shell are movably connected with connecting pieces, and the opposite sides of the two connecting pieces are They are fixedly connected by aluminum sheets, the other side of the connecting piece is fixedly connected to the wire, the two sides of the inner wall of the casing are provided with chute, and the two sides of the inner surface of the chute are fixedly connected with sliding rods, The left and right sides of the connecting piece are respectively slidably connected with the outer surfaces of the two sliding rods, and a movable groove is opened on one side outside the casing, and the interior of the movable groove is slidably connected to the arc-shaped clamping shaft. A pressure spring is fixedly connected to one side of the arc-shaped clamping shaft, and an elastic member is sleeved on the outer surface of the sliding rod;

A pop-up structure, the pop-up structure is arranged inside the installation slot, the pop-up structure includes a pop-up plate, and a support plate is fixedly connected to one side of the installation plate.

Preferably, both sides of the bottom of the pop-up plate are fixedly connected with limit shafts, and an elastic member is sleeved on the outer surface of the limit shaft and located at the bottom of the pop-up plate.

Preferably, telescopic holes are communicated with the bottom of the inner surface of the installation groove, and the left and right sides of the pop-up plate are respectively slidably connected to the left and right sides of the inner surface of the installation groove.

Preferably, the bottom of the support plate is provided with a groove, the interior of the groove is provided with a clamping structure, and the clamping structure includes a fixing rod, and one end of the fixing rod is connected to one end of the inner surface of the groove. The side is fixedly connected, and one side of the mounting plate is fixedly connected with two positioning side plates.

Preferably, a clamping block is sleeved on the outer surface of the fixing rod, a support spring is sleeved on the outer surface of the fixing rod and located on one side of the clamping block, and the bottom of the clamping block is fixedly connected with a pulling block. pieces.

Preferably, the top of the support plate is provided with a positioning groove, the bottom of the cabinet is disposed inside the positioning groove, and both sides of the bottom of the inner surface of the positioning groove are fixedly connected with positioning shafts.

Preferably, an installation block is fixedly connected to the bottom of the cabinet body, a fixing groove is formed on one side of the installation block, and a card groove is communicated with one side of the inner surface of the installation groove.

Preferably, one side of the cable management plate is provided with a cable management slot, the outside of the casing is clamped inside the installation slot, and one side of the casing is fitted with one side of the pop-up plate.

Compared with the related art, the high and low voltage power distribution cabinet with safety protection function provided by the present invention has the following beneficial effects:

The invention provides a high and low voltage power distribution cabinet with a safety protection function. By setting the protection structure, the wires in the power distribution cabinet can be safely protected. When the temperature of the wires is abnormal, the internal protection of the power distribution cabinet The structure performs power-off protection, and the residual current flows into the protective structure, making the protective structure in a power-off state, which can prevent the residual current from continuing to flow, thereby avoiding damage to other components and playing a good role in safety protection. As a second protective measure, the protective structure further cuts off the residual current after the protective structure of the power distribution cabinet itself fails to prevent the current from causing damage to other components, making the power distribution cabinet more secure.

Description of drawings

1 is a schematic structural diagram of the exterior of a high and low voltage power distribution cabinet with a safety protection function provided by the present invention;

FIG. 2 is a schematic structural diagram of the interior of the cabinet shown in FIG. 1;

FIG. 3 is a schematic structural diagram of the interior of the cable management board shown in FIG. 2;

Fig. 4 is the enlarged schematic diagram of A part shown in Fig. 3;

Fig. 5 is the structural schematic diagram inside the installation groove shown in Fig. 2;

6 is a schematic structural diagram of the side surface of the high and low voltage power distribution cabinet with a safety protection function provided by the present invention;

FIG. 7 is a schematic view of the internal structure of the support plate shown in FIG. 6 .

Labels in the figure: 1. Cabinet body, 2. Mounting plate, 3. Connecting plate, 4. Cable management plate, 5. Mounting slot, 6. Protective structure, 61. Housing, 62. Connector, 63. Aluminum sheet, 64, chute, 65, sliding rod, 66, movable groove, 67, arc clamp, 68, pressure spring, 69, elastic piece, 7, pop-up structure, 71, pop-up plate, 72, limit shaft, 73, Elastic part, 8, support plate, 9, telescopic hole, 10, groove, 11, snap structure, 111, fixing rod, 112, snap block, 113, support spring, 114, pulling piece, 12, positioning side plate , 13, positioning slot, 14, positioning shaft, 15, mounting block, 16, fixed slot, 17, card slot, 18, cable management slot.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings and embodiments.

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and Fig. 7, wherein, Fig. 1 is a schematic structural diagram of the exterior of the high and low voltage power distribution cabinet with safety protection function provided by the present invention; Fig. 2 Figure 1 is a schematic diagram of the internal structure of the cabinet; Figure 3 is a schematic structural diagram of the interior of the cable management board shown in Figure 2; Figure 4 is an enlarged schematic diagram of part A shown in Figure 3; Figure 5 is shown in Figure 2 Schematic diagram of the structure inside the installation slot; FIG. 6 is a schematic structural diagram of the side of the high and low voltage power distribution cabinet with a safety protection function provided by the present invention; FIG. 7 is a schematic structural diagram of the interior of the support plate shown in FIG. 6 . High and low voltage power distribution cabinets with safety protection functions, including:

Cabinet 1 and mounting plate 2;

Connecting plate 3, the connecting plate 3 is fixedly connected to one side of the inner wall of the cabinet 1, the connecting plate 3 is provided with a cable management plate 4, and one side of the cable management plate 4 is provided with two installation slots 5 ;

A protective structure 6, the protective structure 6 is arranged inside the installation slot 5, the protective structure 6 includes a casing 61, and a connecting piece 62 is movably connected between two sides of the inner wall of the casing 61, and the two The opposite side of the connecting piece 62 is fixedly connected by an aluminum sheet 63, and the other side of the connecting piece 62 is fixedly connected with the wire. Two sides of the inner surface of the groove 64 are fixedly connected with sliding rods 65 , the left and right sides of the connecting piece 62 are respectively slidably connected with the outer surfaces of the two sliding rods 65 , and the outer side of the casing 61 is provided with a movable sliding rod 65 . Slot 66, the interior of the movable slot 66 is slidably connected to an arc-shaped clamping shaft 67, a pressure spring 68 is fixedly connected to one side of the arc-shaped clamping shaft 67, and an elastic member 69 is sleeved on the outer surface of the sliding rod 65;

The pop-up structure 7 is disposed inside the installation slot 5 , and the pop-up structure 7 includes a pop-up plate 71 , and a support plate 8 is fixedly connected to one side of the installation plate 2 .

The mounting plate 2 is arranged on the back of the cabinet body 1, and is fixedly connected to the installation position by fixing screws. The connecting plate 3 is fixedly connected to the back of the inner wall of the cabinet body 1, and is a rectangular long board for installing the cable management board 4 and cable management. The board 4 is evenly distributed on the front of the connection board 3, and its number can be adjusted according to the needs of use. The cable management board 4 mainly fixes the wires, so that each wire can be neatly arranged in the power distribution cabinet, which is convenient for searching during maintenance. The installation slots 5 are respectively located on the left and right sides of the front of the cable management board 4 for installing the protective structure 6;

The housing 61 is adapted to fit with the mounting slot 5, and is clamped inside the mounting slot 5. The two connecting pieces 62 are arranged vertically in the same straight line inside the housing 61. Normally conductive, the two connectors 62 are fixed together by the aluminum sheet 63, and a complete loop is formed by setting the two connectors 62, the aluminum sheet 63 and the wire to ensure that the current can pass normally, and the chute 64 is located in the housing 61. On the left and right sides of the inner wall, the top and bottom ends of the sliding rod 65 are respectively fixedly connected to the top and bottom of the inner surface of the chute 64. The movable slot 66 is adapted to the arc-shaped clamping shaft 67, and the arc-shaped clamping shaft 67 can be installed in the movable slot. 66 moves in the horizontal direction, and the pressure spring 68 is located between the arc-shaped clamping shaft 67 and the opposite side of the inner surface of the movable groove 66, providing elastic support for the arc-shaped clamping shaft 67, so that the arc-shaped clamping shaft 67 has elasticity. The lower pressure spring 68 is in a compressed state, and the arc-shaped clamping shaft 67 is adapted to the clamping slot 17, and the housing 61 can be stably installed inside the installation slot 5 through the clamping of the two;

By setting the protective structure 6, the wires in the power distribution cabinet can be safely protected. When the temperature of the wires is abnormal, the power-off protection is carried out through the protective structure inside the power distribution cabinet, and the residual current passes through the connecting piece 62. Then through the aluminum sheet 63 , the current generates an excessively high temperature, which will quickly turn the aluminum sheet 63 into a liquid state, and the two connecting members 62 lose the fixing effect of the aluminum sheet 63 , and under the elastic force of the elastic member 69 , far away, so that the wire loop fixed with the connector 62 is in a short-circuit state, preventing the residual current from continuing to flow, thereby avoiding damage to other components, and playing a good safety protection role. The protection structure 6 is used as a second protection measure. After the protective structure of the power distribution cabinet loses its function, the residual current is further cut off to prevent the current from causing damage to other components, so that the safety of the power distribution cabinet is higher. After the protective structure 6 is disconnected, tools can be used when it needs to be replaced. The rod extends into the card slot 17, makes it contact with the arc-shaped card shaft 67 and pushes it to shrink toward the movable slot 66, so that the arc-shaped card shaft 67 can be separated from the card slot 17, and the shell 61 loses its locking effect. And under the elastic force of the ejection plate 71, it extends to the outside of the installation slot 5, so that the housing 61 is gradually separated from the installation slot 5 until the ejection plate 71 is reset.

Both sides of the bottom of the pop-up plate 71 are fixedly connected to a limit shaft 72 , and an elastic member 73 is sleeved on the outer surface of the limit shaft 72 and located at the bottom of the pop-up plate 71 .

The two limiting shafts 72 are respectively located on the left and right sides of the bottom of the ejection plate 71, and the elastic member 73 provides elastic support for the ejection plate 71. By setting the ejection structure 7, when the protective structure 6 needs to be replaced, the housing 61 can be ejected and installed. The outside of the slot 5 is convenient for the staff to take out. At the same time, when the protective structure 6 is installed, the back of the housing 61 is attached to the ejection plate 71, and is pressed to move into the installation slot 5, so that the elastic member 73 is compressed until the arc snaps. The shaft 67 is clamped with the card slot 17. At this time, the eject plate 71 is in a compressed state and has elastic potential energy. When the arc-shaped card shaft 67 is separated from the card slot 17, the shell 61 can be ejected again, which is very convenient to use and does not require Excessive operations can be used in conjunction with the protective structure 6 to realize the free installation and disassembly of the pop-up structure 6, which greatly saves installation or disassembly time.

A telescopic hole 9 is communicated with the bottom of the inner surface of the installation slot 5 , and the left and right sides of the pop-up plate 71 are respectively slidably connected to the left and right sides of the inner surface of the installation slot 5 .

When the pop-up plate 71 is subjected to a force, it drives the limiting shaft 72 to extend into the telescopic hole 9 at the same time.

The bottom of the support plate 8 is provided with a groove 10, and the interior of the groove 10 is provided with a clamping structure 11. The clamping structure 11 includes a fixing rod 111, and one end of the fixing rod 111 is connected to the groove. One side of the inner surface of 10 is fixedly connected, and one side of the mounting plate 2 is fixedly connected with two positioning side plates 12 .

The two side plates 12 are located on the left and right sides of the installation plate 2 respectively, and play a limiting role on the left and right sides of the power distribution cabinet when installing the power distribution cabinet.

A clamping block 112 is sleeved on the outer surface of the fixing rod 111 , a support spring 113 is sleeved on the outer surface of the fixing rod 111 and located on one side of the clamping block 112 , and the bottom of the clamping block 112 is fixed A puller 114 is attached.

The fixing rod 111 has a limiting effect on the clamping block 112, so that the clamping block 112 can slide stably on the surface of the fixing rod 111. so that the cabinet 1 can be stably installed on the support plate 8, the support spring 113 provides elastic support for the clamping block 112, so that the clamping block 112 has elasticity, and the pulling member 114 is located at the bottom of the supporting plate 8. By setting the clamping structure 11. It mainly plays a role in fixing the cabinet body 1. When the cabinet body 1 needs to be disassembled, it is only necessary to pull the pulling member 114 at the bottom of the support plate 8 to one side, so that the clamping block 112 can follow the horizontal direction of the surface of the fixing rod 111. Move, so that one side of the clamping block 112 is separated from the fixing groove 16. At this time, the installation block 15 is no longer subject to the clamping effect, and then the cabinet body 1 can be disassembled upwards, thereby realizing the rapid disassembly of the cabinet body 1. Operation It is very simple. At the same time, during installation, the mounting block 15 at the bottom of the cabinet 1 is aligned with the positioning groove 13 and then clamped. At this time, the mounting block 15 squeezes the clamping block 112 to shrink into the groove 10, and finally makes the clamping The block 112 is clamped with the fixing slot 16 to complete the installation of the cabinet 1. The clamping structure 11 replaces the traditional screw fixing method, and can be quickly disassembled when the power distribution cabinet needs to be repaired, realizing the freedom of the cabinet 1. Installation and disassembly, the operation is very convenient, which greatly saves time.

The top of the support plate 8 is provided with a positioning slot 13 , the bottom of the cabinet 1 is disposed inside the positioning slot 13 , and positioning shafts 14 are fixedly connected to both sides of the bottom of the inner surface of the positioning slot 13 .

The positioning slot 13 is adapted to the cabinet body 1. When installing the cabinet body 1, place the bottom of the cabinet body 1 in the positioning slot 13 to effectively position the cabinet body 1. The middle of the bottom of the inner surface of the positioning slot 13 is used for clamping The positioning shaft 14 is located on the left and right sides of the inner surface of the positioning groove 13, and the corresponding position at the bottom of the cabinet body 1 is provided with a hole adapted to the positioning shaft 14. When installing the cabinet body 1 At the time, the cabinet body 1 and the support plate 8 can be kept in a stable state by being clamped with the bottom of the cabinet body 1 .

A mounting block 15 is fixedly connected to the bottom of the cabinet body 1 , one side of the mounting block 15 is provided with a fixing slot 16 , and one side of the inner surface of the mounting slot 5 is communicated with a clamping slot 17 .

The installation block 15 is located in the middle of the bottom of the cabinet 1, and is clamped with the positioning slot 13 during installation, and the fixing slot 16 is adapted to the clamping block 112. 8 to maintain a stable installation.

One side of the cable management plate 4 is provided with a cable management slot 18 , the outside of the casing 61 is clamped to the inside of the installation slot 5 , and one side of the casing 61 is connected to one side of the ejection plate 71 . fit.

The working principle of the high and low voltage power distribution cabinet with safety protection function provided by the present invention is as follows:

When the temperature of the wires is abnormal, the power-off protection is carried out by the protective structure inside the power distribution cabinet, and the residual current passes through the connector 62 and then through the aluminum sheet 63. At this time, the current generates an excessively high temperature, which will make the aluminum sheet 63 The two connectors 62 quickly become liquid, and the two connectors 62 lose the fixing effect of the aluminum sheet 63 and move away from each other under the elastic force of the elastic members 69, so that the wire loop fixed with the connector 62 is in a short-circuit state, preventing the residual current from continuing. circulation, thereby avoiding damage to other components, and playing a very good role in safety protection. The protection structure 6 is used as a second protection measure;

When a new protective structure needs to be replaced, a tool rod can be used to extend into the card slot 17 to make it contact with the arc-shaped card shaft 67 and push it to shrink into the movable groove 66, so that the arc-shaped card shaft 67 can be separated from the card slot 17. , at this time, the shell 61 loses its clamping function, and under the elastic force of the ejection plate 71, it extends to the outside of the installation slot 5, so that the shell 61 and the installation slot 5 are gradually separated until the ejection plate 71 is reset. The casing is taken out, and then the wires are separated from the connecting piece 62 , and a new protective structure 6 is replaced.

Compared with the related art, the high and low voltage power distribution cabinet with safety protection function provided by the present invention has the following beneficial effects:

By setting the protective structure 6 , the wires in the power distribution cabinet can be safely protected. When the temperature of the wires is abnormal, the power-off protection is carried out through the protective structure inside the power distribution cabinet, and the residual current flows into the protective structure 6 . The protective structure 6 is in a power-off state, which can prevent the residual current from continuing to flow, thereby avoiding damage to other components, and playing a very good safety protection role. The protective structure 6 is used as a second protective measure. After the self-protection structure fails, the residual current is further cut off to avoid damage to other components caused by the current, making the power distribution cabinet more secure.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other related technologies Fields are similarly included in the scope of patent protection of the present invention.

Claims (8)

1. The utility model provides a high-low voltage distribution cabinet with safety protection function which characterized in that includes:

the cabinet body and the mounting plate;

the connecting plate is fixedly connected to one side of the inner wall of the cabinet body, a wire arranging plate is arranged on the connecting plate, and two mounting grooves are formed in one side of the wire arranging plate;

the protective structure is arranged inside the mounting groove and comprises a shell, connecting pieces are movably connected between two sides of the inner wall of the shell, one opposite sides of the two connecting pieces are fixedly connected through aluminum sheets, the other side of the connecting pieces is fixedly connected with a wire, sliding grooves are formed in two sides of the inner wall of the shell, sliding rods are fixedly connected to two sides of the inner surface of each sliding groove, the left side and the right side of each connecting piece are respectively in sliding connection with the outer surfaces of the two sliding rods, a movable groove is formed in one side of the outer portion of the shell, the inner portion of each movable groove is in sliding connection with an arc-shaped clamping shaft, one side of each arc-shaped clamping shaft is fixedly connected with a pressure spring, and the outer surface;

pop-up structure, pop-up structure set up in the inside of mounting groove, pop-up structure is including popping out the board, one side fixedly connected with backup pad of mounting panel.

2. The high-low voltage power distribution cabinet with the safety protection function according to claim 1, wherein both sides of the bottom of the ejection plate are fixedly connected with limiting shafts, and elastic parts are sleeved on the outer surfaces of the limiting shafts and the bottom of the ejection plate.

3. The high-low voltage power distribution cabinet with the safety protection function according to claim 1, wherein the bottom of the inner surface of the installation groove is communicated with a telescopic hole, and the left side and the right side of the ejection plate are respectively connected with the left side and the right side of the inner surface of the installation groove in a sliding manner.

4. The high-low voltage power distribution cabinet with the safety protection function according to claim 1, wherein a groove is formed in the bottom of the supporting plate, a clamping structure is arranged inside the groove, the clamping structure comprises a fixing rod, one end of the fixing rod is fixedly connected with one side of the inner surface of the groove, and two positioning side plates are fixedly connected with one side of the mounting plate.

5. The high-low voltage power distribution cabinet with the safety protection function according to claim 4, wherein a clamping block is sleeved on an outer surface of the fixing rod, a supporting spring is sleeved on one side of the clamping block on the outer surface of the fixing rod, and a pulling member is fixedly connected to the bottom of the clamping block.

6. The high-low voltage power distribution cabinet with the safety protection function according to claim 4, wherein a positioning groove is formed in the top of the supporting plate, the bottom of the cabinet body is arranged inside the positioning groove, and positioning shafts are fixedly connected to two sides of the bottom of the inner surface of the positioning groove.

7. The high-low voltage power distribution cabinet with the safety protection function according to claim 1, wherein a mounting block is fixedly connected to the bottom of the cabinet body, a fixing groove is formed in one side of the mounting block, and a clamping groove is communicated with one side of the inner surface of the mounting groove.

8. The high-low voltage power distribution cabinet with the safety protection function according to claim 1, wherein a wire arrangement groove is formed in one side of the wire arrangement plate, the outer portion of the shell is clamped in the installation groove, and one side of the shell is attached to one side of the ejection plate.

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