CN211720400U - Explosion-proof three-phase asynchronous motor junction box - Google Patents
Explosion-proof three-phase asynchronous motor junction box Download PDFInfo
- Publication number
- CN211720400U CN211720400U CN201922502572.0U CN201922502572U CN211720400U CN 211720400 U CN211720400 U CN 211720400U CN 201922502572 U CN201922502572 U CN 201922502572U CN 211720400 U CN211720400 U CN 211720400U
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- CN
- China
- Prior art keywords
- junction box
- terminal
- box base
- terminal sleeve
- asynchronous motor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a flame-proof type three-phase asynchronous motor junction box, which comprises a junction box base, wherein the junction box base is horizontally arranged, the center of the junction box base is provided with a through hole, and the junction box base also comprises a joint cylinder, a junction bolt, a terminal sleeve and a temperature measurement lead; the joint cylinder is arranged at the through hole in the center of the terminal box base, the outer surface of the joint cylinder is tightly attached to the inner side wall of the through hole, and the inner wall of the joint cylinder is an explosion-proof joint surface; the two ends of the terminal sleeve are in symmetrical round table shapes, the middle part of the terminal sleeve is in a cylindrical shape, and the outer side wall of the middle part of the terminal sleeve is tightly attached to the inner side wall of the joint cylinder; the wiring bolt is arranged inside the upper half part of the terminal sleeve; the temperature measurement lead wire sets up in the inside of the latter half of terminal cover, adopts wiring bolt's direct introduction mode, has made things convenient for the installation of spare parts such as the inside terminal cover of terminal box, wiring bolt, mutually supports through wiring bolt and terminal cover, and the guide three-phase asynchronous motor's relevant electric wire moves towards, factor of safety when improving the wiring.
Description
Technical Field
The utility model relates to a motor accessory processing technology field especially relates to a flame-proof type three-phase asynchronous motor terminal box.
Background
The junction box is used as one of key components of the explosion-proof three-phase asynchronous motor, and the structure of the junction box directly influences the performance of the three-phase asynchronous motor and the use, installation and maintenance of maintenance.
In order to ensure the safe operation of the explosion-proof three-phase asynchronous motor, a PT100 platinum thermal resistor or an over-temperature protection thermal switch, a temperature relay and the like are required to be embedded between stator coils, sometimes an electric heating element is required to be equipped, the devices are all required to be equipped with a junction box, if an auxiliary junction box is additionally arranged, firstly, the visible installation position of the mining equipment on site is not allowed, and secondly, the auxiliary junction box is not resistant to collision, is easy to damage and is very inconvenient to install.
SUMMERY OF THE UTILITY MODEL
Based on the technical problem that the background art exists, the utility model provides a flame-proof type three-phase asynchronous motor terminal box adopts wiring bolt's direct introduction mode, has made things convenient for the installation of spare parts such as the inside terminal cover of terminal box, wiring bolt.
The utility model provides a flame-proof type three-phase asynchronous motor junction box, which comprises a junction box base, wherein the junction box base is horizontally arranged, a through hole is arranged at the center of the junction box base, and the junction box base also comprises a joint cylinder, a junction bolt, a terminal sleeve and a temperature measurement lead; the joint cylinder is arranged at the through hole in the center of the terminal box base, the outer surface of the joint cylinder is tightly attached to the inner side wall of the through hole, and the inner wall of the joint cylinder is an explosion-proof joint surface; the two ends of the terminal sleeve are in symmetrical round table shapes, the middle part of the terminal sleeve is in a cylindrical shape, and the outer side wall of the middle part of the terminal sleeve is tightly attached to the inner side wall of the joint cylinder; the wiring bolt is arranged inside the upper half part of the terminal sleeve; the temperature measurement lead is arranged in the lower half part of the terminal sleeve.
And a sealing ring is arranged between the outer side of the middle part of the terminal sleeve and the explosion-proof joint surface.
The through hole in the center of terminal box seat sets up the internal thread, and the surface of joint section of thick bamboo sets up the external screw thread, and internal thread and external screw thread are mutually supported.
The top of the joint cylinder is provided with a circular flange, and the bottom of the circular flange is not contacted with the top of the junction box base.
The utility model provides a pair of flame-proof type three-phase asynchronous motor terminal box's advantage lies in: the explosion-proof three-phase asynchronous motor junction box provided in the structure of the utility model guides the trend of the related electric wires of the three-phase asynchronous motor through the mutual matching of the wiring bolt and the terminal sleeve, thereby improving the safety factor during wiring; the sealing ring between the outer side of the middle part of the terminal sleeve and the explosion-proof joint surface is arranged for preventing a gap from being reserved between the terminal sleeve and the explosion-proof joint surface, and safety accidents such as sparks and the like caused by residual gas in the middle of the terminal sleeve and the explosion-proof joint surface during electric leakage are avoided.
Drawings
Fig. 1 is a schematic structural diagram of a junction box of a flame-proof type three-phase asynchronous motor provided by the utility model;
fig. 2 is a top view of the junction box of the flame-proof type three-phase asynchronous motor provided by the utility model;
the temperature measuring terminal comprises a terminal box base 1, a junction box base 2, a junction cylinder 21, an explosion-proof junction surface 22, a circular flange 3, a junction bolt 4, a terminal sleeve 5 and a temperature measuring lead.
Detailed Description
As shown in fig. 1, fig. 1 is the utility model discloses a flame-proof type three-phase asynchronous motor terminal box adopts wiring bolt's direct introduction mode, has made things convenient for the installation of spare parts such as the inside terminal cover of terminal box, wiring bolt.
Referring to fig. 1 and 2, the utility model provides a flame-proof type three-phase asynchronous motor junction box, including junction box base 1, junction box base 1 is placed horizontally, and the center of junction box base 1 is provided with a through hole, and also includes a joint cylinder 2, a wiring bolt 3, a terminal sleeve 4 and a temperature measurement lead 5; the joint cylinder 2 is arranged at a through hole in the center of the terminal box base 1, the outer surface of the joint cylinder 2 is tightly attached to the inner side wall of the through hole, and the inner wall of the joint cylinder 2 is an explosion-proof joint surface 21; the two ends of the terminal sleeve 4 are symmetrical round table shapes, the middle part of the terminal sleeve 4 is cylindrical, and the outer side wall of the middle part of the terminal sleeve 4 is tightly attached to the inner side wall of the joint barrel 2; the wiring bolt 3 is arranged inside the upper half part of the terminal sleeve 4; the temperature measuring lead 5 is arranged in the lower half part of the terminal sleeve 4. The temperature measurement lead 5 is used for assisting in measuring the temperature of the three-phase asynchronous motor, the explosion-proof joint face 21 is used for preventing accidental generation during wiring, and the wiring bolt 3 and the terminal sleeve 4 are matched with each other to guide the trend of related electric wires of the three-phase asynchronous motor, so that the safety factor during wiring is improved.
A seal ring is arranged between the outer side of the middle part of the terminal sleeve 4 and the explosion-proof joint surface 21. The sealing ring is arranged to prevent a gap from being left between the terminal sleeve 4 and the explosion-proof joint surface 21, so that safety accidents such as sparks caused by residual gas between the terminal sleeve 4 and the explosion-proof joint surface 21 during electric leakage are avoided.
The through hole in the center of terminal box seat 1 sets up the internal thread, and the surface of joint section of thick bamboo 2 sets up the external screw thread, and internal thread and external screw thread are mutually supported. The internal thread and the external thread are arranged to facilitate the disassembly and the assembly of the joint barrel 2, so that convenience is provided for later-stage maintenance.
The top of the joint cylinder 2 is provided with a circular flange 22, and the bottom of the circular flange 22 is not contacted with the top of the terminal box base 1. The annular flange 22 is provided to facilitate manual tightening of the engagement cylinder 2 by means of the external thread into engagement with the internal thread of the terminal block 1.
In summary, the flame-proof type three-phase asynchronous motor junction box provided in the structure of the utility model guides the related electric wires of the three-phase asynchronous motor to move through the mutual matching of the wiring bolt and the terminal sleeve, thereby improving the safety factor during wiring; the sealing ring between the outer side of the middle part of the terminal sleeve and the explosion-proof joint surface is arranged for preventing a gap from being reserved between the terminal sleeve and the explosion-proof joint surface, and safety accidents such as sparks and the like caused by residual gas in the middle of the terminal sleeve and the explosion-proof joint surface during electric leakage are avoided.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is familiar with the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered in the protection scope of the present invention.
Claims (4)
1. A junction box of an explosion-proof three-phase asynchronous motor comprises a junction box base (1), wherein the junction box base (1) is horizontally arranged, and a through hole is formed in the center of the junction box base (1), and is characterized by further comprising a joint cylinder (2), a junction bolt (3), a terminal sleeve (4) and a temperature measurement lead (5); the joint cylinder (2) is arranged at a through hole in the center of the junction box base (1), the outer surface of the joint cylinder (2) is tightly attached to the inner side wall of the through hole, and the inner wall of the joint cylinder (2) is an explosion-proof joint surface (21); the two ends of the terminal sleeve (4) are in symmetrical round table shapes, the middle part of the terminal sleeve (4) is in a cylindrical shape, and the outer side wall of the middle part of the terminal sleeve (4) is tightly attached to the inner side wall of the joint barrel (2); the wiring bolt (3) is arranged inside the upper half part of the terminal sleeve (4); the temperature measuring lead (5) is arranged in the lower half part of the terminal sleeve (4).
2. The junction box of the flameproof three-phase asynchronous motor according to claim 1, wherein a seal ring is installed between the outer side of the middle part of the terminal sleeve (4) and the explosion-proof joint surface (21).
3. The flameproof three-phase asynchronous motor junction box of claim 2, wherein a through hole in the center of the junction box base (1) is provided with an internal thread, the outer surface of the joint cylinder (2) is provided with an external thread, and the internal thread and the external thread are matched with each other.
4. The flameproof three-phase asynchronous motor junction box of claim 1, characterized in that the top of the junction cylinder (2) is provided with an annular flange (22), and the bottom of the annular flange (22) is not in contact with the top of the junction box base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922502572.0U CN211720400U (en) | 2019-12-31 | 2019-12-31 | Explosion-proof three-phase asynchronous motor junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922502572.0U CN211720400U (en) | 2019-12-31 | 2019-12-31 | Explosion-proof three-phase asynchronous motor junction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211720400U true CN211720400U (en) | 2020-10-20 |
Family
ID=72822081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922502572.0U Expired - Fee Related CN211720400U (en) | 2019-12-31 | 2019-12-31 | Explosion-proof three-phase asynchronous motor junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211720400U (en) |
-
2019
- 2019-12-31 CN CN201922502572.0U patent/CN211720400U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201020 Termination date: 20201231 |