CN106911087B - A GCS low-voltage switchgear - Google Patents

Abstract

The invention relates to the technical field of switch cabinets, in particular to a GCS low-voltage switch cabinet which comprises a cabinet body (1), a main circuit plug connector (2), a wire (4) connected with a wiring terminal (3), a bolt (5), a nut (6), a wiring board (7) and a plug connection block, wherein the plug connection block comprises a plug connection block body (8) made of rubber and a bow-shaped plug board (9) made of a copper material, the bow-shaped plug board (9) is embedded in the plug connection block body (8), a first liquid sealing structure is arranged between the plug connection block body (8) and the main circuit plug connector (2), the bolt (5) penetrates through a bolt abdicating hole (14) and then is screwed with the nut (6), and a third liquid sealing structure is arranged at the positions of the bolt (5) and the nut (6). After adopting this kind of structure, effectively avoid the water that condenses at the top of GCS low-voltage switchgear to fall at the wiring board junction of binding post and main circuit plug connector.

Description

A GCS low-voltage switchgear

technical field

The invention relates to the technical field of switch cabinets, in particular to a GCS low-voltage switch cabinet.

Background technique

As shown in Figure 1, the GCS low-voltage switchgear in the prior art is a general GCS low-voltage switchgear, including a cabinet body 01, a main circuit connector 02, a wire 04 connected to a terminal 03, a bolt 05 and a nut 06, and the main circuit plug The connector 02 is fixed on the side wall of the cabinet body 01 , and one end of the main circuit connector 02 has a protruding terminal block 07 , and the connecting terminal of the wire is connected to the terminal block by bolts 05 and nuts 06 . Since the wires and the main circuit connectors are generally connected by bolts and nuts, and the bolts and nuts are exposed in the cabinet, there will be the following disadvantages: 1. When used in places where the climate is mostly humid, the GCS low-voltage switch The top of the cabinet may condense into condensed water and drip downward. If the condensed water drips on the connection between the wire and the bolt and nut of the main circuit connector, it will cause a major safety hazard; 2. Generally, a terminal board corresponds to the The terminals of the two wires are connected separately. During installation, it is necessary to manually align the terminals of the two wires with the bolt holes of the terminal board, and then insert the bolts and nuts for tightening, so manual alignment can insert the bolts and cause installation inconvenience.

Contents of the invention

The technical problem to be solved by the present invention is to provide a GCS low-voltage switchgear, in which a waterproof structure is provided at the connection position between the wiring board and the wire terminal of the GCS low-voltage switchgear, thereby effectively avoiding the condensation on the top of the GCS low-voltage switchgear. It is at the junction of the wiring terminal and the wiring board of the main circuit connector, so that the safety of use can be guaranteed.

In order to solve the above technical problems, the GCS low-voltage switchgear of the present invention includes a cabinet body, a main circuit connector, wires connected with terminals, bolts and nuts, and the main circuit connector is fixed on the side wall of the cabinet , one end of the main circuit connector has a protruding terminal block, the GCS low-voltage switchgear also includes a plug connection block, and the plug connection block includes a plug connection block body made of rubber and a copper material The "bow" type plug board is made, and the "bow" type plug board is embedded in the plug connection block body, and the side of the plug connection block body facing the main circuit connector has a wiring board to give way The other side of the plug-in connection block body has a lead opening, and the "bow" type plug-in board has a first notch that is snapped into the wiring board and a second notch that is snapped into the terminal , the wiring board is plugged into the opening of the wiring board and the wiring board is engaged with the first notch, the connecting terminal is inserted into the opening of the wire and the connecting terminal is engaged with the second notch, the plugging The connecting block body is pressed against the main circuit connector, and a first liquid-tight structure is provided between the plug-in connection block body and the main circuit connector, and a second liquid-tight structure is provided between the wire relief port and the wire , the body of the plug-in connection block, the "bow" type plug-in board, the terminal block, and the wiring board are all provided with a bolt relief hole, and the bolt is tightened with the nut after passing through the bolt relief hole, and the bolt and the nut are A third liquid-tight structure is provided.

After adopting the above structure, compared with the prior art, the present invention has the following advantages:

1. Since the GCS low-voltage switchgear also includes a plug-in connection block, in this way, the structure in which the bolts and nuts are tightened to expose the connection in the prior art is changed, and the connection between the terminal board and the terminal is replaced by a plug-in connection block pack. Moreover, the plug connection block is made of rubber and has waterproof function, and a first liquid seal structure is provided between the plug connection block body and the main circuit connector, and a second liquid seal is provided between the wire relief port and the wire. The structure, the third liquid sealing structure is provided at the bolt and nut, so that the connection between the terminal board and the terminal is fully waterproof, so as to effectively prevent the condensation on the top of the GCS low-voltage switchgear from falling on the terminal and the main circuit connector The wiring board connection, so as to ensure the safety of use.

2. When installing, first insert the wiring board into the opening of the wiring board, at this time, the clamping connection between the wiring board and the first notch is equivalent to the mutual positioning and limitation of the wiring board and the first notch; After the relief opening is inserted, the connection terminal is clamped with the second notch, which is equivalent to the second notch giving the connection terminal a pre-assembly positioning effect; after that, the bolt can pass through the bolt relief hole and be connected with the nut smoothly. In this way, the plug-in connection block can be pre-assembled, so manual positioning is not required, and installation is convenient.

On the basis of disclosing the above-mentioned technical features, the present invention also has the following technical features: the first liquid-tight structure includes a first sealing ring groove on the end surface of the plug-in connection block body facing the main circuit connector, the first A first sealing ring is arranged in the ring groove of the sealing ring. In this way, the interface between the plug connection block body and the main circuit connector can be liquid-sealed, water can be prevented from entering from the interface between the plug connection block body and the main circuit connector, and the waterproof effect can be ensured.

On the basis of disclosing the above technical features, the present invention also has the following technical features: screw holes are provided on the end face of the main circuit connector, screw holes are provided on the body of the plug connection block, and the screw holes are perpendicular to the main circuit. The end face of the circuit connector is provided with a screw in the screw hole, and the screw is threadedly connected with the screw hole. In this way, the stability of the first liquid-tight structure can be ensured under the action of tightening the screws.

On the basis of disclosing the above technical features, the present invention also has the following technical features: the second liquid seal structure means that the inner wall of the lead wire relief opening is provided with a second seal ring groove, and the second seal ring ring groove is provided with a There is a second sealing ring, and the second sealing ring is pressed against the outer surface of the wire. In this way, water can be prevented from entering the connection terminal along the wire, so as to block water at the wire and ensure the waterproof function.

On the basis of disclosing the above-mentioned technical features, the present invention also has the following technical features: the third liquid sealing structure includes two "T"-shaped rubber sleeves and a third sealing ring, and the "T"-shaped rubber sleeves The end part has a third sealing ring groove, and the third sealing ring is located in the third sealing ring groove, and the two "T" rubber sleeves are respectively plugged into the two sides of the plug-in connection block body. In the bolt relief hole, the bolts and nuts are tightened to tighten the ends of the two "T"-shaped rubber sleeves against the third sealing ring. In this way, since the "T" rubber sleeve is tightened by the bolts and nuts, the outer end of the "T" rubber sleeve is in close contact with the body of the plug-in connection block, which can prevent water from "T" rubber sleeve and The interface between the body of the plug-in connection block enters; in addition, the ends of the two "T"-shaped rubber sleeves are pressed against the third sealing ring, so that water can be prevented from entering the pipe mouth of the "T"-shaped rubber sleeve. Enter; under the comprehensive effect of the above-mentioned technical solutions, it is possible to carry out all-round waterproof protection on the connection position of the wiring board and the wiring terminal of the wire, so as to ensure the safety of use.

On the basis of disclosing the above technical features, the present invention also has the following technical features: the width of the connecting terminal is smaller than or equal to the diameter of the wire. In this way, it is more convenient for the sealing performance of the lead wire relief opening and the second liquid sealing structure.

Description of drawings

Fig. 1 is a schematic structural diagram of a GCS low-voltage switchgear in the prior art.

Fig. 2 is a schematic structural diagram of a GCS low-voltage switchgear in the present invention.

Fig. 3 is a schematic cross-sectional structure diagram of a GCS low-voltage switchgear in the present invention.

Fig. 4 is a schematic diagram of the exploded structure of a GCS low-voltage switchgear in the present invention.

Fig. 5 is a schematic diagram of an exploded structure from another perspective of a GCS low-voltage switchgear in the present invention.

Fig. 6 is a structural schematic diagram of a "T"-shaped rubber bushing in a GCS low-voltage switchgear in the present invention.

Fig. 7 is a structural schematic diagram of a "bow" type plug-in board in a GCS low-voltage switchgear according to the present invention.

in:

1. Cabinet body; 2. Main circuit connector; 3. Terminal block; 4. Wire; 5. Bolt; 6. Nut; 7. Wiring board; 8. Plug connection block body; 9. "Bow" type plug Connecting board; 10. Wiring board relief opening; 11. Wire relief opening; 12. First notch; 13. Second notch; 14. Bolt relief hole; 15. First seal ring groove; 16. The first seal ring; 17, screw hole; 18, screw perforation; 19, screw; 20, the second seal ring groove; 21, the second seal ring; 22, "T" type rubber sleeve; 23, the third seal Ring; 24, the third seal ring groove.

Detailed ways

The invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

The inventive concepts of the present disclosure are described below using terms commonly used by those skilled in the art to convey the substance of their work to others skilled in the art. These inventive concepts may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of inclusion to those skilled in the art. It should also be noted that these embodiments are not mutually exclusive. Components, steps or elements from one embodiment may be assumed to be present or used in another embodiment. Various alternative and/or equivalent implementations may be substituted for the specific embodiments shown and described without departing from the scope of the embodiments of the present disclosure. This application is intended to cover any adaptations or variations of the embodiments discussed herein. It will be apparent to those skilled in the art that alternative embodiments may be practiced using only some of the described aspects. Specific numbers, materials, and configurations are described herein in the embodiments for purposes of illustration, however, one skilled in the art may practice alternative embodiments without these specific details. In other instances, well-known features may be omitted or simplified in order not to obscure the illustrated embodiments.

In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Referring to accompanying drawings 2 to 7, in one embodiment, a GCS low-voltage switchgear includes a cabinet 1, a main circuit connector 2, a wire 4 connected to a terminal 3, a bolt 5 and a nut 6 , the main circuit connector 2 is mainly used to transfer the external power supply to the inside of the GCS low-voltage switch cabinet, the main circuit connector 2 is fixed on the side wall of the cabinet body 1, and one end of the main circuit connector 2 has The terminal block 7 protrudes, and the other end of the main circuit connector 2 has a card slot with an external power supply. The GCS low-voltage switchgear also includes a plug-in connection block, which includes a plug-in connection block body 8 made of rubber and a "bow"-shaped plug-in board 9 made of copper material. The plug connection block body 8 has a certain degree of elasticity, the "bow" type plug board 9 is embedded in the plug connection block body 8, and the plug connection block body 8 has a Wiring board relief opening 10, the other side of the plug connection block body 8 has a wire relief opening 11, and the "bow" type plugging board 9 has a first notch 12 and a The position of the first notch 12 is adapted to the position of the relief opening 10 of the terminal block 13, and the position of the second recess 13 is adapted to the position of the lead relief opening 11. The quantity of lead give way mouth 11 adapts to the quantity of lead, is generally two. The wiring board 7 is plugged in the wiring board relief opening 10 and the wiring board 7 is engaged with the first notch 12, and the connecting terminal 3 is inserted in the wire giving way opening 11 and the connecting terminal 3 is connected to the second recess. port 13, the plug connection block body 8 is pressed against the main circuit connector 2 and a first liquid-tight structure is provided between the plug connection block body 8 and the main circuit connector 2, and the wires allow A second liquid-tight structure is provided between the bit port 11 and the wire 4, and the plug-in connection block body 8, the "bow"-shaped plug-in board 9, the terminal 3, and the terminal board 7 are all provided with bolt relief holes 14. The bolt 5 passes through the bolt relief hole 14 and is tightened with the nut 6, and the bolt 5 and the nut 6 are provided with a third liquid-tight structure.

On the basis of disclosing the above-mentioned technical features, the present invention also has the following technical features: the first liquid-tight structure includes a first sealing ring ring groove 15 on the end surface of the plug-in connection block body 8 facing the main circuit connector 2 , the first sealing ring 16 is arranged in the ring groove 15 of the first sealing ring. In this way, the interface between the plug-in connection block body and the main circuit connector 2 can be liquid-sealed to prevent water from entering from the interface between the plug-in connection block body and the main circuit connector 2 to ensure a waterproof effect.

On the basis of disclosing the above technical features, the present invention also has the following technical features: screw holes 17 are provided on the end surface of the main circuit connector 2, screw holes 18 are provided on the plug connection block body 8, and the screw The through hole 18 is arranged perpendicular to the end face of the main circuit connector 2 , and a screw 19 is provided in the screw through hole 18 , and the screw 19 is threadedly connected with the screw hole 17 . In this way, the stability of the first liquid-tight structure can be ensured under the action of tightening the screws.

On the basis of disclosing the above-mentioned technical features, the present invention also has the following technical features: the second liquid sealing structure means that the inner wall of the wire relief port 11 is provided with a second seal ring groove 20, and the second seal ring groove 20 20 is provided with a second sealing ring 21, and the second sealing ring 21 is pressed against the outer surface of the wire 4. In this way, water can be prevented from entering the connection terminal along the wire 4, so as to block water at the wire 4 and ensure the waterproof function.

On the basis of disclosing the above-mentioned technical features, the present invention also has the following technical features: the third liquid sealing structure includes two "T"-shaped rubber sleeves 22 and a third sealing ring 23, and the "T"-shaped rubber sleeve The end of the pipe 22 has a third sealing ring groove 24, and the third sealing ring 23 is located in the third sealing ring groove 24, and the two "T"-shaped rubber bushings 22 are respectively inserted into the sockets. Connected to the bolt relief holes 14 on both sides of the connecting block body 8, the bolts 5 and nuts 6 are tightened to tighten the ends of the two "T"-shaped rubber sleeves 22 against the third sealing ring 23. In this way, since the "T" rubber sleeve 22 is tightened by the bolts and nuts 6, the outer end of the "T" rubber sleeve 22 is in close contact with the plug connection block body 8, which can prevent water from flowing from the "T" type. The interface between the rubber sleeve 22 and the plug-in connection block body 8 enters; in addition, the ends of the two "T"-shaped rubber sleeves 22 are pressed against the third sealing ring 23, so that water can be prevented from flowing from the "T" The middle pipe port of the "type rubber bushing enters. Under the comprehensive effect of the above technical solutions, the connection position between the wiring board 7 and the wiring terminals of the wires can be protected against water in all directions to ensure safe use.

On the basis of disclosing the above technical features, the present invention also has the following technical features: the width of the connecting terminal 3 is less than or equal to the diameter of the wire 4 . In this way, the airtightness of the wire relief opening 11 and the second liquid-tight structure is more convenient when processing it.

Since the GCS low-voltage switchgear also includes a plug-in connection block, in this way, the structure in which the bolts and nuts are tightened and exposed in the prior art is changed, and the connection between the terminal block 7 and the terminal 3 is replaced by a plug-in connection block. pack. Moreover, the plug-in connection block is made of rubber and has a waterproof function, and a first liquid-tight structure is provided between the plug-in connection block body 8 and the main circuit connector 2, and a first liquid-tight structure is provided between the wire relief port 11 and the wire 4. The second liquid sealing structure, the bolt 5 and the nut 6 are equipped with a third liquid sealing structure, so that the connection between the terminal board 7 and the terminal 3 can be protected from water in all directions, so as to effectively prevent the condensation on the top of the GCS low-voltage switchgear from falling The connection between the terminal block and the terminal board of the main circuit connector, so as to ensure the safety of use.

When installing, first plug the wiring board 7 into the outlet 10 of the wiring board, at this time, the clamping connection between the wiring board 7 and the first notch 12 is equivalent to the mutual positioning and limiting of the wiring board 7 and the first notch 12; After the connecting terminal 3 is inserted from the lead opening 11, the connecting terminal 3 is clamped with the second notch 13, which is equivalent to the second notch 13 giving the connecting terminal 3 a pre-assembly positioning effect; after that, the bolt 5 can pass through smoothly The bolt relief hole 14 is connected with the nut 6 . In this way, the plug-in connection block can be pre-assembled, so manual positioning is not required, and installation is convenient.

The above is only a preferred and feasible implementation example of the present invention, and cannot therefore limit the scope of rights of the present invention. All corresponding changes should fall within the protection scope of the claims of the present invention.

Claims (5)

1. A GCS low-voltage switchgear, comprising a cabinet body (1), a main circuit connector (2), a wire (4), a bolt (5) and a nut (6) that are connected to a terminal (3), the described The main circuit connector (2) is fixed on the side wall of the cabinet body (1), and one end of the main circuit connector (2) has a protruding terminal board (7), which is characterized in that the one The GCS low-voltage switchgear also includes a plug connection block, which includes a plug connection block body (8) made of rubber and a "bow" type plug board (9) made of copper material. The "bow" type plug-in board (9) is embedded in the plug-in connection block body (8), and the plug-in connection block body (8) has a wiring board relief opening on the side facing the main circuit connector (2) (10), the other side of the plug-in connection block body (8) has a lead opening (11), and the "bow" type plug-in board (9) has a first clamping connection with the wiring board (7). A notch (12) and a second notch (13) clamped with the terminal (3), the terminal block (7) is plugged into the port for the terminal block (10) and the terminal block (7) is connected to the The first notch (12) is clamped, the connecting terminal (3) is plugged in the lead opening (11) and the connecting terminal (3) is clamped with the second notch (13), the plug connection The block body (8) is tightly pressed against the main circuit connector (2) and a first liquid-tight structure is provided between the block body (8) and the main circuit connector (2) for plug connection. (11) and the wire (4) are provided with a second liquid-tight structure, the plug-in connection block body (8), the "bow" type plug-in board (9), the terminal (3), and the terminal board ( 7) are provided with bolt relief holes (14), the bolts (5) are tightened with the nuts (6) after passing through the bolt relief holes (14), and the bolts (5) and the nuts (6) are provided with a Three liquid seal structure. 2. A GCS low-voltage switchgear according to claim 1, characterized in that: the first liquid-sealed structure includes a plug connection block body (8) facing the main circuit connector (2) on the end surface with a The first sealing ring groove (15), and the first sealing ring groove (15) is provided with a first sealing ring (16). 3. A GCS low-voltage switchgear according to claim 2, characterized in that: screw holes (17) are provided on the end face of the main circuit connector (2), and the plug connection block body (8 ) is provided with a screw hole (18), the screw hole (18) is arranged perpendicular to the end face of the main circuit connector (2), the screw hole (18) has a screw (19), the screw (19) and the screw hole (17 ) threaded connection. 4. A GCS low-voltage switchgear according to claim 1, characterized in that: the second liquid-sealed structure means that the inner wall of the lead opening (11) is provided with a second sealing ring groove (20) A second sealing ring (21) is arranged in the ring groove (20) of the second sealing ring, and the second sealing ring (21) is pressed against the outer surface of the wire (4). 5. A GCS low-voltage switchgear according to claim 1, characterized in that: the width of the connecting terminal (3) is smaller than or equal to the diameter of the wire (4).