CN217849114U

CN217849114U - Temperature measurement wiring structure of explosion-proof motor

Info

Publication number: CN217849114U
Application number: CN202221879665.0U
Authority: CN
Inventors: 余泽辉; 沈琦超; 孟宪昊; 温诗祺
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-11-18
Anticipated expiration: 2032-07-21

Abstract

The utility model provides an explosion-proof machine temperature measurement wiring structure, relates to wiring end terminal box technical field, including the box body component, set up in box body component top is used for covering the lid component of box body component top breach, set up in the inlet wire component of box body component bottom, fixed set up in the inside terminal connecting block of box body component and set up in a plurality of terminal on the terminal connecting block, electric lead wire passes through the inlet wire component connection terminal and temperature element, set up annular guide gully downwards on the inlet wire component up end, be provided with a plurality of in the guide gully and run through the inlet wire passageway of inlet wire component. The utility model provides a temperature measurement wiring structure can effectively prevent to be arranged in filling once only pouring into too much or pouring into after accomplishing because the environment reason appears some condition colloid of jolting and flow into other holes of box body and cause other hole to block up under the fluid uncured state of the colloid in crossing the line passageway.

Description

Temperature measurement wiring structure of explosion-proof motor

Technical Field

The utility model relates to a wiring end terminal box technical field, especially an explosion-proof machine temperature measurement wiring structure.

Background

The explosion-proof type explosion-proof motor is a motor used in an explosive environment, for example, in industries such as coal, petroleum, chemical industry and the like, and is used for driving various general machines, so the safety and reliability of the explosion-proof motor are more important than those of a common motor, although the common explosion-proof motor has certain explosion-proof performance, the early prevention is more important, for example, the temperature environment in the explosion-proof motor can be predicted in advance by adopting a bearing and stator temperature measurement mode to prevent in advance, a corresponding wiring structure is required by the temperature measurement structure, an explosion-proof wiring box is generally used in the explosion-proof field, the so-called explosion-proof wiring box is a closed box from the appearance, cables enter and exit through an explosion-proof lock nut and are connected in the box, and therefore, sparks at the connection position are avoided preferentially, and the purpose of safe wiring is achieved.

For example, the patent of the invention in china with the granted application number of 202111091620.7 discloses a YBX4 high-efficiency flame-proof type three-phase asynchronous motor auxiliary temperature measurement junction box, which comprises a junction box base, a wiring board arranged in the junction box base, a wire passing device fixed at the bottom of the junction box base, four junction box hoppers respectively arranged at two sides of the junction box base, and a junction box cover connected with the upper part of the junction box base, wherein the junction box base and the junction box cover are of a hexagonal structure, the bottom of the wire passing device is connected with a wiring terminal, and a compression nut, a metal blocking rod, a sealing ring and a metal gasket are sequentially arranged in the junction box hopper from outside to inside. The temperature measuring junction box of the flame-proof type YBX4 three-phase asynchronous motor has the advantages of excellent sealing performance, good wiring effect, simple structure, convenient wiring and easy stator replacement, can simultaneously meet the use requirements of the temperature measurement of the bearing and the stator of the motor, and ensures the safety and the reliability of the operation of the temperature measuring junction box of the flame-proof type YBX4 high-efficiency three-phase asynchronous motor. In the above patent, the whole terminal box is mounted, and the shielding wire passes through the circular hole of the wire passing device and is connected to the plug terminal inside the terminal box; installing and fixing the wire passing device in a positioning channel at the bottom of the junction box; insulating filler is filled in the junction box; filling sealant into the junction box; and embedding and fixing the convex structure at the bottom of the junction box on the motor base.

The filling of the insulating materials is known in the installation process before the junction box is connected to the motor base, the junction box is connected with the motor base through the bolts, and in the process of filling the insulating materials, other holes in the junction box can be blocked due to the fact that the bolts cannot pass through the bolt holes because the insulating materials are accidentally overflowed from the wire passing device, holes need to be further formed, the final glue sealing quality is affected, and the assembly efficiency is also reduced.

SUMMERY OF THE UTILITY MODEL

A temperature measurement wiring structure of an explosion-proof motor comprises a box body component, a cover component, an incoming line component, a terminal connecting block and a plurality of terminals, wherein the cover component is arranged above the box body component and used for covering a gap above the box body component, the incoming line component is arranged at the bottom of the box body component, the terminal connecting block is fixedly arranged inside the box body component, the terminals are arranged on the terminal connecting block, an electric lead is connected with the terminals and a temperature measurement element through the incoming line component, an annular guide gully is downwards formed in the upper end face of the incoming line component, and a plurality of incoming line channels penetrating through the incoming line component are arranged in the guide gully.

Preferably, in the above aspect, the guide ravines have a semicircular cross section with an upward opening.

Preferably, the bottom of the inner side of the box body component is further provided with a thick bottom block which is arranged around the wire inlet component in a circle, and the height of the upper end face of the thick bottom block is higher than that of the upper end face of the wire inlet component.

Preferably, an arc-shaped guide ring surface is disposed on an inner side of the thick bottom block, and the arc-shaped guide ring surface naturally transitions to the guide ravines from top to bottom.

Preferably, the bottom of the box member includes the thick bottom block and a thin bottom block integrally formed on the periphery of the thick bottom block, the height of the upper end surface of the thick bottom block is higher than that of the upper end surface of the thin bottom block, and the thickness of the thick bottom block is greater than that of the thin bottom block.

Preferably, the wire inlet member is connected with the box member in a threaded fit manner, and the upper end face of the wire inlet member is located inside the box member.

Preferably, the thick bottom block is circumferentially provided with a plurality of connecting holes, and the temperature measuring wiring structure is fixedly connected with the explosion-proof motor through bolts penetrating through the connecting holes.

Preferably, the upper end surface of the wire inlet component is provided with a connecting threaded hole, and the terminal connecting block is fixed on the wire inlet component through a bolt and is arranged inside the box body component.

Preferably, as a preferred feature of the above solution, at least one of the electrical leads passes through the wire inlet member and enters the internal cavity of the box member, the electrical lead occupies at least a portion of the passage volume of the wire inlet passage, and the remaining volume of the wire inlet passage is filled with a sealing compound.

To sum up, the utility model has the advantages of it is following:

1. the temperature measurement wiring structure can effectively prevent the colloid filled in the wire passing channel from flowing into other holes of the box body to cause other hole blockage due to the fact that the colloid is excessively poured at one time in the uncured state of the fluid or the colloid flows into other holes of the box body due to some bumping conditions caused by environmental reasons after pouring is finished;

2. the guide gullies are arranged in a semicircular arc structure, so that the speed of the colloid flowing into the inlet channel can be increased, and the colloid is prevented from staying in the guide gullies for a long time and overflowing out of the guide gullies due to the overhigh speed of the subsequently poured colloid or some bumping factors in the environment;

3. the setting of thick bottom block can further prevent that the colloid from flowing into other functional holes when empting, can also increase wiring structure and anti-riot motor's joint strength.

The benefits of further or other details will be discussed in the examples.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present application;

FIG. 2 is a full sectional view of FIG. 1;

FIG. 3 is an enlarged view of area E of FIG. 2;

wherein the cover member is not a protective member of the present application, but conceals the member and is not shown in the drawings;

the cable-inserting device comprises a box body component 1, a cable-inserting component 3, a terminal connecting block 4, a terminal 5, a thick bottom block 11, a thin bottom block 12, an arc-shaped guide ring surface 111, a connecting hole 112, a guide gully 31 and a cable-inserting channel 32.

Detailed Description

The terms upper, lower, left, right, front, rear, front, back, top, bottom and the like in the description, or which may be referred to in the specification, are defined with respect to the configurations shown in the drawings, and the words "inner" and "outer" refer to the relative concepts toward and away from the geometric center of a particular component, respectively, and thus may be changed accordingly depending on the position in which it is located and the state of use. Therefore, these and other directional terms should not be construed as limiting terms.

The invention will be further explained with reference to the following examples:

the embodiment is as follows:

the utility model provides an anti-riot motor temperature measurement wiring structure, including box body component 1, set up in box body component 1 top and be used for covering the lid component of box body component 1 top breach, set up inlet wire component 3 in box body component 1 bottom, fixed terminal connecting block 4 that sets up in box body component 1 inside and set up a plurality of terminal 5 on terminal connecting block 4, the electric lead wire passes through inlet wire component 3 connecting terminal 5 and temperature measuring element, in this embodiment, the main difference lies in with prior art that the annular guide gully 31 has been seted up downwards on inlet wire component 3 up end, be provided with a plurality of inlet wire passageway 32 that runs through the inlet wire component in the guide gully 31. In assembly, the electrical leads pass through the inlet member 3 and into the chamber inside the box member 1, a single electrical lead occupying a portion of the channel volume of a single inlet channel 32, the remaining volume of the inlet channel 32 being filled with a sealing compound, which may be a material that forms a fluid substance that flows or pours into the inlet channel 32 and forms a explosion-proof insulating seal after curing, such as an explosion-proof composite sealing mastic (hereinafter referred to as a sealing mastic). Since the material has a certain fluidity before curing and may block other holes in the flow channel box member, for example, the bottom of the connection member of the present application is further provided with bolt holes for fixing connection with the motor, if the bolt holes are sealed by the explosion-proof composite sealing compound, the post-processing will be affected, and therefore, in the present application, guide notches 31 are provided on the upper end surface of the wire inlet member 3, so as to ensure that the sealing compound can flow into the correct position (into the wire inlet channel 32) and be cured. In addition, the section of the guide gully 31 is in the shape of a semicircular arc with an upward opening, so that the sealing mastic can more easily enter the wire inlet channel 32 through the arc surface, the sealing mastic can be accelerated to flow into the wire inlet channel 32, the sealing mastic is prevented from not flowing into the wire inlet channel 32 in time and being jolted out of the wire inlet component 3 due to the external environment, the molding quality in the wire inlet channel 32 is influenced, and the situation that functional holes in other wire inlet component regions are blocked can be caused.

Further, the bottom of the box member includes a thick bottom block 11 and a thin bottom block 12 integrally formed at the periphery of the thick bottom block 11, wherein the thick bottom block 11 is disposed at the periphery of the inlet member, the height of the upper end surface of the thick bottom block 11 is higher than the height of the upper end surface of the inlet member 3, the height of the upper end surface of the thick bottom block 11 is higher than the height of the upper end surface of the thin bottom block 12, the thickness of the thick bottom block 11 is greater than that of the thin bottom block 12, an arc-shaped guide ring surface is disposed at the inner side of the thick bottom block 11, and the arc-shaped guide ring surface naturally transits from top to bottom to the guide gully 31, and the end surface higher than the inlet member is disposed to prevent the thick bottom block 11 from overflowing when the sealing cement is poured once, the arc-shaped guide ring surface naturally transits to the guide gully 31 to guide the sealing cement higher than the upper end surface of the inlet member 3 into the guide gully 31, and a plurality of sealing cement 112 disposed on the thick bottom block 11 for connecting holes of the explosion-proof motor 112 to uniformly discharge the connecting holes, and to prevent the connecting structure from flowing into the inlet member 11 when the explosion-proof motor 11 and the explosion-proof motor connecting holes (the connecting holes are uniformly connected to prevent the explosion-proof motor connecting holes).

The interior of the inlet member 3, which is surrounded by the guide notches 31, forms a flat end surface, which is inwardly provided with connecting threaded holes, and the terminal connection block 4 is fixed to the inlet member by bolts and is disposed inside the box member 1.

As further improvement, adopt split type structure with inlet wire component 3 and box body component 1, can directly pull down when convenient follow-up wiring component and anti-riot motor of disassembling, wherein inlet wire component 3's circumference periphery is provided with the external screw thread and is provided with the internal thread in the box body 1 component, and both pass through screw-thread fit connection.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides an explosion-proof machine temperature measurement wiring structure, including box body component (1), set up in box body component (1) top is used for covering the lid component of box body component (1) top breach, set up in inlet wire component (3) of box body component (1) bottom, fixed set up in box body component (1) inside terminal connecting block (4) and set up in a plurality of terminal (5) on the terminal connecting block (4), the electric lead wire passes through inlet wire component (3) are connected terminal (5) and temperature measuring element, its characterized in that: annular guide gullies (31) are formed in the upper end face of the wire inlet component (3) downwards, and a plurality of wire inlet channels (32) penetrating through the wire inlet component (3) are arranged in the guide gullies (31).

2. The temperature-measuring wiring structure of the explosion-proof motor as claimed in claim 1, wherein the cross-section of the guide gullies (31) is in the shape of a semi-circular arc with an upward opening.

3. The temperature-measuring and wiring structure of the explosion-proof motor according to claim 1, wherein a thick bottom block (11) is further arranged at the bottom of the inner side of the box body member (1) and surrounds the wire inlet member (3) for one circle, and the height of the upper end face of the thick bottom block (11) is higher than that of the upper end face of the wire inlet member (3).

4. The temperature measurement wiring structure of the explosion-proof motor according to claim 3, wherein an arc-shaped guide ring surface (111) is arranged on the inner side of the thick bottom block (11), and the arc-shaped guide ring surface (111) naturally transitions to the guide gullies (31) from top to bottom.

5. The temperature-measuring wiring structure of the explosion-proof motor according to claim 3, wherein the bottom of the box body component (1) comprises the thick bottom block (11) and a thin bottom block (12) integrally formed on the periphery of the thick bottom block (11), the height of the upper end face of the thick bottom block (11) is higher than that of the upper end face of the thin bottom block (12), and the thickness of the thick bottom block (11) is greater than that of the thin bottom block (12).

6. The temperature-measuring wiring structure of the explosion-proof motor according to claim 1, wherein the wire inlet member (3) is connected with the box body member (1) in a threaded fit manner, and the upper end face of the wire inlet member (3) is located inside the box body member (1).

7. The temperature-measuring wiring structure of the explosion-proof motor according to claim 3, wherein a plurality of connecting holes (112) are circumferentially formed in the thick bottom block (11), and the temperature-measuring wiring structure is fixedly connected with the explosion-proof motor through bolts penetrating through the connecting holes (112).

8. The temperature-measuring wiring structure of the explosion-proof motor as claimed in claim 1, wherein a connection threaded hole is formed in the upper end surface of the wire inlet member (3), and the terminal connection block (4) is fixed on the wire inlet member (3) through a bolt and arranged inside the box body member (1).

9. An explosion-proof electric machine temperature measurement wiring structure according to claim 1, characterized in that at least one of said electrical leads passes through said wire inlet member (3) and into the internal cavity of said box member (1), said electrical lead occupying at least a portion of the passage volume of said wire inlet passage (32), the remaining volume of said wire inlet passage (32) being filled with a sealing compound.