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Auxiliary heating junction box of YBX4 high-efficiency explosion-proof three-phase asynchronous motor

A three-phase asynchronous, auxiliary heating technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of large size of the junction box and inconvenient wiring, and achieve the effect of reducing the size, convenient wiring and good electrical performance.

Pending Publication Date: 2021-11-23
南阳防爆电气研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The junction box is large in size and inconvenient for wiring

Method used

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  • Auxiliary heating junction box of YBX4 high-efficiency explosion-proof three-phase asynchronous motor
  • Auxiliary heating junction box of YBX4 high-efficiency explosion-proof three-phase asynchronous motor
  • Auxiliary heating junction box of YBX4 high-efficiency explosion-proof three-phase asynchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] refer to Figure 1-6 , this embodiment provides a YBX4 high-efficiency flameproof three-phase asynchronous motor auxiliary heating junction box, including a junction box seat 4, a junction box bucket 20 connected to one side of the junction box seat 4, and a junction box with the junction box seat 4. The junction box cover 3 connected to the top of the box seat 4; the interior of the junction box seat 4 is provided with wiring components, and the wiring components include a terminal cover 22 integrally die-cast with the terminal box seat 4, and are arranged on the terminal cover 22 The upper wiring mounting plate 14 and the wiring bolts 9 passing through the terminal sleeve 22 and the wiring mounting plate 14 .

[0035] The junction box base 4 is fixedly installed on the motor base through the first bolt 1 , and the first washer 2 is arranged on the first bolt 1 .

[0036] The junction box base 4 is provided with a grounding bolt 17 , and the grounding bolt 17 is provi...

Embodiment 2

[0046] refer to Figure 1-6 , this embodiment provides a YBX4 high-efficiency flameproof three-phase asynchronous motor auxiliary heating junction box, which is an improvement on the basis of Embodiment 1:

[0047] A first explosion-proof surface 18 is set between the junction box cover 3 and the junction box seat 4: L≥11, ic≤0.15; the upper and lower ends of the terminal cover 22 protrude from the junction box seat 4, and the junction box The lower part of the seat 4 is wrapped, and a second flameproof surface 19 is set between the junction box seat 4 and the terminal cover 22: L≥28, ic≤0.2. The net volume of the junction box is ≤500cm 3 .

Embodiment 3

[0049] refer to Figure 1-6 , this embodiment provides a YBX4 high-efficiency flameproof three-phase asynchronous motor auxiliary heating junction box, which is an improvement on the basis of Embodiment 2: the junction box bucket 20 includes a connection with the junction box seat 4 The sealing ring 8 and the metal washer 6 provided at the place, and the compression nut 5 at the end. Lead enters from terminal box bucket 20, and after being connected on the terminal bolt 9, tighten with hold-down nut 5, easy and simple to operate. The sealing ring 8 is made of nitrile rubber, and the compression nut 5 and the metal washer 6 are both made of Q235A. The junction box cover 3 is provided with an explosion-proof mark 21 . The invention can meet the requirements of ExdIMb and ExdIIB T4 Gb.

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Abstract

The invention discloses an auxiliary heating junction box of a YBX4 high-efficiency explosion-proof three-phase asynchronous motor, which belongs to the technical field of explosion-proof motor junction boxes, and comprises a junction box seat, a junction box bucket connected with one side of the junction box seat, and a junction box cover connected with the upper part of the junction box seat, a wiring component is arranged in the junction box seat, and the wiring component comprises a terminal sleeve integrated with the junction box seat in a die-casting manner, a wiring mounting plate arranged at the upper part of the terminal sleeve, and a wiring bolt penetrating through the terminal sleeve and the wiring mounting plate. The auxiliary heating junction box solves the technical problems of large size and large occupied space of the conventional auxiliary junction box of the explosion-proof motor, is compact in structure, small in size, high in electrical performance and capable of separating strong and weak electricity, greatly reduces the cost, can meet the wiring requirements of various models, and provides wiring convenience for a heater of a YBX4 high-efficiency explosion-proof three-phase asynchronous motor; the wiring bolt is convenient to install and replace, and the wiring efficiency is remarkably improved.

Description

technical field [0001] The invention relates to the technical field of flameproof motor junction boxes, in particular to a YBX4 high-efficiency flameproof type three-phase asynchronous motor auxiliary heating junction box. Background technique [0002] The explosion-proof three-phase asynchronous motor has the characteristics of high efficiency, energy saving, large temperature rise margin, long life, good performance, low noise, small vibration and high reliability. With the continuous expansion of the motor market, the competition is becoming more and more fierce, and the requirements for the motor are gradually becoming more and more detailed. The motor is operated or stored in a humid environment, and it is easy to be affected by moisture, which will affect the insulation performance, so that the insulation resistance of the explosion-proof motor is prone to decrease, electrical breakdown or leakage occurs, and the explosion-proof safety of the increased safety type and ...

Claims

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Application Information

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IPC IPC(8): H02K5/22H02K11/40H02G3/08
CPCH02K5/225H02K11/40H02G3/081
Inventor 王军陈瑞闫强波
Owner 南阳防爆电气研究所有限公司
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