Novel bushing type insulator for explosion-proof cabinet

Abstract

The utility model relates to the technical field of electrical accessories, and discloses a novel bushing type insulator for an explosion-proof cabinet, which comprises a connecting plate, an embedding block is fixedly connected to the central position of the front side of the connecting plate, a conical bushing is fixedly connected to the front end of the embedding block, a connecting sleeve is fixedly connected to the rear side of the connecting plate, and the conical bushing is fixedly connected to the rear side of the connecting plate. Uniformly distributed umbrella skirts are fixedly connected to the outer surface of the connecting sleeve, a placement cavity is formed in the inner diameter of the connecting sleeve, a sensor is mounted at the top of the embedding block, and the conical sleeve, the embedding block, the connecting plate and the placement cavity are communicated with one another. According to the utility model, through an APG epoxy resin pouring technology, integral forming and effective wrapping of an electrified body, and through a mode design of an all-insulation shielding type European style plug, an electrified part is further completely isolated, underground moisture and dust accumulation risks are greatly reduced, the insulation performance of the whole cabinet is improved, and weather resistance is enhanced; long-term stable operation in a severe mine environment is ensured, and electrical potential safety hazards are greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electrical fittings, especially to a novel sleeve type insulator for an explosion-proof cabinet. BACKGROUND

[0002] Insulators are key components in power systems for supporting and fixing conductors and keeping the conductors insulated from other components or the ground. Their core function is to ensure that current flows only in the intended path, preventing electric shock, short circuit or shock accidents, while bearing mechanical load and environmental impact. Insulators need to have high insulation performance, good mechanical strength, and resistance to aging, pollution and other characteristics, and are widely used in power transmission lines, substations and explosion-proof cabinets, which are important basic elements to ensure the safe and stable operation of power systems.

[0003] Currently, the existing insulators need to be insulated after connecting the bus with the copper bar lap joint insulator, which cannot completely isolate the live body and exposes the conductive part to the air. Long-term operation in the underground environment with moisture and dust accumulation on the surface will cause great safety hazards. UTILITY MODEL CONTENT

[0004] To make up for the above shortcomings, the utility model provides a novel sleeve type insulator for an explosion-proof cabinet, aiming to improve the problem that the copper bar lap joint insulator needs to be connected with the bus, cannot completely isolate the live body, and exposes the conductive part to the air, which causes great safety hazards.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a novel sleeve type insulator for an explosion-proof cabinet, comprising a connecting plate, a fitting block fixedly connected to the front side center position of the connecting plate, a tapered sleeve fixedly connected to the front end of the fitting block, a connecting sleeve fixedly connected to the rear side of the connecting plate, a plurality of evenly distributed sheds fixedly connected to the outer surface of the connecting sleeve, a placing cavity opened in the inner diameter of the connecting sleeve, a sensor installed on the top of the fitting block, the tapered sleeve, the fitting block, the connecting plate and the placing cavity being mutually penetrated, a conductive copper rod provided in the inner diameter of the tapered sleeve, a first connecting groove opened in the front end of the conductive copper rod, and a second connecting groove opened in the rear end of the conductive copper rod.

[0006] Preferably, the conductive copper rod comprises a cylindrical conductive copper rod, a first connecting groove is opened in the front end of the cylindrical conductive copper rod, and a second connecting groove is opened in the rear end of the cylindrical conductive copper rod.

[0007] Preferably, the conductive copper rod comprises a corner conductive copper rod, a first connecting groove is opened in the front end of the corner conductive copper rod, and a second connecting groove is opened in the rear end of the corner conductive copper rod.

[0008] Preferably, the sensor is wrapped around the outside of the conductive assembly.

[0009] Preferably, the connecting plate surface is provided with four connecting holes.

[0010] Preferably, the inner wall of the first connecting groove and the second connecting groove is provided with an internal thread for thread connection with an external conductive component.

[0011] Preferably, the conical sleeve, the embedded block, the connecting plate, the connecting sleeve and the umbrella skirt are integrally formed by APG epoxy resin pouring process.

[0012] Preferably, the sensor is a current sensor or a voltage sensor, and the sensor is electrically connected with the live indicator, for real-time detection of current or voltage signal in the conductive assembly, and intuitive display of the live state of the cable through the live indicator.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the utility model, the conical sleeve, the embedded block, the connecting plate, the connecting sleeve and the umbrella skirt are integrally formed by APG epoxy resin pouring process, effectively wrapping the live body, shielding all the live parts exposed by the insulator, and further completely isolating the live parts by the mode design of the full-insulation shielding type European plug, greatly reducing the risk of underground moisture and dust accumulation, improving the overall cabinet insulation performance, enhancing the weather resistance, ensuring long-term stable operation in harsh mine environment, and greatly reducing the electrical safety hazards.

[0015] 2. In the utility model, the conical connecting sleeve is matched with the cylindrical or corner conductive copper bar and the connecting groove with internal thread, so that the incoming and outgoing line cables and the bus bars between cabinets can be quickly connected by the special European plug, improving the connection efficiency, meeting different wiring needs, and being stable and reliable in connection, without complex insulation treatment, bringing a new experience of high efficiency and convenience for electrical connection of the mine high-voltage explosion-proof cabinet.

[0016] 3. In the utility model, the current or voltage sensor is additionally arranged in the sleeve insulator and connected with the live indicator, for real-time monitoring of the live state of the cable, avoiding safety accidents caused by not testing electricity during maintenance, and at the same time, the concentric and eccentric structure forms increase the distance between the three-phase bus bars, effectively saving the design space, taking into account safety and space utilization, and improving the overall performance of the mine high-voltage explosion-proof cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a rear view schematic diagram of the concentric insulator of the novel sleeve type insulator for the explosion-proof cabinet of the utility model.

[0018] Figure 2 It is a rear view schematic diagram of the concentric insulator of the novel sleeve type insulator for the explosion-proof cabinet of the utility model.

[0019] Figure 3The utility model is used for concentric insulator section view schematic drawing of new sleeve type insulator of explosion -proof cabinet.

[0020] Figure 4 The utility model is used for eccentric insulator perspective view of new sleeve type insulator of explosion -proof cabinet.

[0021] Figure 5 The utility model is used for eccentric insulator rear view schematic drawing of new sleeve type insulator of explosion -proof cabinet.

[0022] Figure 6 The utility model is used for eccentric insulator section view schematic drawing of new sleeve type insulator of explosion -proof cabinet.

[0023] Legend:

[0024] 1, conical sleeve, 2, embedded block, 3, connecting plate, 4, connecting sleeve, 5, umbrella skirt, 6, first connecting groove, 7, connecting hole, 8, second connecting groove, 9, cylindrical conductive copper bar, 10, sensor, 11, placing cavity, 12, corner conductive copper bar. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be apparently and completely described below in conjunction with the drawings of the specification of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the protection scope of the utility model.

[0026] Embodiment one: concentric insulator

[0027] Reference Figures 1-3 The utility model provides an embodiment: new sleeve type insulator for explosion -proof cabinet, including connecting plate 3, the embedded block 2 of connecting plate 3 front side center position is fixedly connected, the conical sleeve 1 of embedded block 2 front end is fixedly connected, connecting plate 3 rear side is fixedly connected with connecting sleeve 4, the umbrella skirt 5 of evenly distributed of connecting sleeve 4 outer surface is fixedly connected, and the placing cavity 11 is seted up in the inner diameter of connecting sleeve 4, and the sensor 10 is installed on the top of embedded block 2, and the conical sleeve 1, embedded block 2, connecting plate 3 and placing cavity 11 are mutually through, and the conductive copper bar is seted up in the inner diameter of conical sleeve 1, and the first connecting groove 6 is seted up in the front end of conductive copper bar, and the second connecting groove 8 is seted up in the rear end of conductive copper bar.

[0028] The connecting plate 3 is used for fixing the insulator to the explosion-proof cabinet; the fitting block 2 connects the conical sleeve 1 and the connecting plate 1; the conical sleeve 1 is inserted into the corresponding space to realize the specific connection function; the umbrella skirt 5 increases the creepage distance and enhances the insulation; the placing cavity 11 can accommodate part of the components; the mutually penetrating structure facilitates the penetration of the conductive copper bar; the first connecting groove 6 and the second connecting groove 8 are used for connecting the external conductive components, so as to construct a complete and compact insulator structure, guaranteeing the electrical connection and insulation performance.

[0029] The conductive copper bar includes a cylindrical conductive copper bar 9, the front end of the cylindrical conductive copper bar 9 is provided with the first connecting groove 6, and the rear end of the cylindrical conductive copper bar 9 is provided with the second connecting groove 8.

[0030] The cylindrical shape of the cylindrical conductive copper bar 9 makes the current transmission path regular, reduces the resistance loss, and the first connecting groove 6 and the second connecting groove 8 at both ends facilitate the connection with other components, and provide a good conductive path when a straight-line connection of the incoming cable or busbar is required.

[0031] The sensor 10 is wrapped around the outside of the conductive component.

[0032] According to the principle of electromagnetic induction, the change of the electromagnetic field around the conductive copper bar will generate a corresponding signal in the sensor, and the wrapping installation enables the sensor 10 to monitor the electromagnetic field change around the conductive copper bar in all directions, obtain current or voltage information, and more accurately and comprehensively perceive the electrical signal of the conductive component.

[0033] Four connecting holes 7 are provided on the surface of the connecting plate 3.

[0034] By using the mechanical fastening principle, the insulator and the explosion-proof cabinet are fixed by the bolt passing through the connecting hole 7, the four connecting holes 7 provide multiple fixing points to ensure the stability of the installation of the insulator, and the insulator is conveniently and firmly installed on the explosion-proof cabinet by using the connecting pieces such as bolts.

[0035] The inner walls of the first connecting groove 6 and the second connecting groove 8 are provided with internal threads for thread connection with the external conductive components.

[0036] The thread connection tightly combines the two components by friction and spiral force, reduces the contact resistance, and the internal threads cooperate with the external threads of the external conductive components to ensure reliable electrical connection after tightening, realizing the quick and stable connection of the conductive copper bar and the external conductive components.

[0037] The conical sleeve 1, the fitting block 2, the connecting plate 3, the connecting sleeve 4 and the umbrella skirt 5 are integrally formed by using the APG epoxy resin pouring process.

[0038] The APG epoxy resin casting process fills the mold with epoxy resin under certain temperature and pressure and solidifies the epoxy resin to form an integrated structure, which reduces the gap between parts, enhances the insulation performance and mechanical strength, improves the overall stability and durability, and forms a high-strength, high-insulation and well-sealed overall structure.

[0039] The sensor 10 is a current sensor or a voltage sensor, and the sensor 10 is electrically connected with the live indicator, which is used to detect the current or voltage signal in the conductive assembly in real time and directly display the live state of the cable through the live indicator.

[0040] The sensor 10 senses the electrical signal and transmits it to the live indicator, which displays the signal after processing through the circuit. The sensor 10 monitors the current or voltage signal in real time, and the live indicator converts the signal into a direct display, allowing the operator to directly and timely understand the live state of the cable and ensure the safety of operation.

[0041] Example two: eccentric insulator

[0042] Please refer to the attached Figure 4 - attached Figure 6 The conductive copper bar includes a corner conductive copper bar 12, the front end of the corner conductive copper bar 12 is provided with a first connecting groove 6, and the rear end of the corner conductive copper bar 12 is provided with a second connecting groove 8

[0043] The corner conductive copper bar 12 changes the direction of current transmission through the corner design, and the first connecting groove 6 and the second connecting groove 8 ensure stable connection. In the case of complex wiring in the explosion-proof cabinet, the connection of lines with different directions is realized, and the corner conductive copper bar 12 meets the electrical connection requirements of changing direction in wiring, increasing the flexibility of connection.

[0044] Working principle: In a mine high-voltage explosion-proof cabinet below 10Kv, the connecting plate 3 is fixed to the explosion-proof cabinet through the four connecting holes 7 on the surface of the connecting plate 3, realizing stable connection with the cabinet body;

[0045] The cylindrical conductive copper bar 9 or the corner conductive copper bar 12 is placed in the inner diameter of the conical sleeve 1, and is connected with the external conductive part through the first connecting groove 6 at the front end and the second connecting groove 8 at the rear end through internal threads, realizing the electrical connection between the incoming cable and the busbar of each cabinet;

[0046] The conical sleeve 1, the embedded block 2, the connecting plate 3, the connecting sleeve 4 and the umbrella skirt 5 are integrally formed by the APG epoxy resin casting process, and the mode design of the fully insulated shielding type European plug is used to isolate the live parts in all directions, resist the invasion of underground moisture and dust, significantly improve the insulation performance and weather resistance of the whole cabinet, and ensure reliable operation in harsh mine environments;

[0047] Meanwhile, the current or voltage sensor at the top of the chimeric block 2 surrounds the conductive copper rod, and can sense the current or voltage signal in the conductive assembly in real time and transmit to the live indicator to intuitively present the live state of the cable, so that the staff can clearly know the live state of the equipment when maintaining the equipment, and prevent safety accidents caused by not checking the electricity.

[0048] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A new type of bushing insulator for an explosion-proof cabinet, comprising a connecting plate (3), characterized in that: The connecting plate (3) is fixedly connected with a fitting block (2) at the center of the front side, the fitting block (2) is fixedly connected with a tapered sleeve (1) at the front end, the connecting plate (3) is fixedly connected with a connecting sleeve (4) at the back side, the connecting sleeve (4) is fixedly connected with evenly distributed umbrella skirts (5) on the outer surface, the connecting sleeve (4) is provided with a placing cavity (11) in the inner diameter, the fitting block (2) is provided with a sensor (10) on the top, the tapered sleeve (1), the fitting block (2), the connecting plate (3) and the placing cavity (11) are mutually penetrated, the tapered sleeve (1) is provided with a conductive copper bar in the inner diameter, the conductive copper bar is provided with a first connecting groove (6) at the front end, and the conductive copper bar is provided with a second connecting groove (8) at the back end.

2. A new bush type insulator for use in explosion proof cabinets as claimed in claim 1, wherein: The conductive copper bar comprises a cylindrical conductive copper bar (9), the cylindrical conductive copper bar (9) is provided with a first connecting groove (6) at the front end, and the cylindrical conductive copper bar (9) is provided with a second connecting groove (8) at the back end.

3. The new type of bushing insulator for an explosion-proof cabinet according to claim 1, characterized in that: The conductive copper bar comprises a corner conductive copper bar (12), the corner conductive copper bar (12) is provided with a first connecting groove (6) at the front end, and the corner conductive copper bar (12) is provided with a second connecting groove (8) at the back end.

4. The new type of bushing insulator for an explosion-proof cabinet according to claim 1, characterized in that: The sensor (10) is wrapped outside the conductive assembly.

5. The new type of bushing insulator for an explosion-proof cabinet according to claim 1, characterized in that: The connecting plate (3) is provided with four connecting holes (7) on the surface.

6. A new type of bushing insulator for an explosion-proof cabinet according to claim 1, characterized in that: The inner walls of the first connecting groove (6) and the second connecting groove (8) are provided with internal threads for threadedly connecting with external conductive components.

7. A new type of bushing insulator for an explosion-proof cabinet according to claim 1 characterized by: The tapered sleeve (1), the fitting block (2), the connecting plate (3), the connecting sleeve (4) and the umbrella skirt (5) are integrally formed by APG epoxy resin pouring process.

8. A new type of bushing insulator for an explosion-proof cabinet according to claim 1, characterized in that: The sensor (10) is a current sensor or a voltage sensor, the sensor (10) is electrically connected with a live indicator, is used for detecting current or voltage signals in the conductive assembly in real time, and directly displays the live state of the cable through the live indicator.

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