Explosion-proof motor
By introducing a coolant box and circulation box structure into the explosion-proof motor, the circulation of coolant is achieved, which solves the problem of reduced heat dissipation effect and explosion risk caused by air duct cooling, and ensures safe cooling of the motor in hazardous environments.
Patent Information
- Application Number
- CN202520271340.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-20
AI Technical Summary
When existing explosion-proof motors are cooled by air ducts, explosive gases, vapors, or dust may enter through the air ducts, resulting in reduced heat dissipation and posing an explosion risk.
Design an explosion-proof motor that adopts a coolant box and circulation box structure. The coolant circulates in the explosion-proof box, isolating and cooling the motor from the side, and achieving the circulation of coolant to avoid direct contact with the motor.
It achieves effective cooling of the motor in hazardous environments, ensures the motor is isolated from the outside world, avoids the risk of explosion, and improves heat dissipation.
Smart Images
Figure CN223729589U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to motor technical field especially relates to a kind of explosion-proof motor. BACKGROUND
[0002] Explosion-proof motor is a kind of electric motor specially designed for the existence of explosive gas, steam or dust environment. It can prevent the internal electric spark or high temperature that can be generated from being conducted to the external environment, so as to avoid causing explosion accident. This kind of motor is widely used in oil and chemical industry, coal mining, pharmaceutical, food processing and other flammable and explosive places;Adopt high-strength shell material and special sealing technology, ensure that motor inside and outside are completely isolated, prevent combustible gas or dust from entering;Need good sealing property, also guarantee enough heat dissipation capacity, to maintain normal working temperature, usually adopt optimized air duct design or use high-efficiency cooling system to realize.
[0003] However, if air duct cooling motor is used, explosive gas, steam or dust will directly enter the motor around from air duct, not only will air duct be blocked, resulting in reduced heat dissipation effect of motor, even explosion will occur with electric spark or high temperature generated by motor, still there is security risk.
[0004] Therefore, to provide a kind of explosion-proof motor, to cool motor while completely isolated from dangerous environment outside, avoid danger. UTILITY MODEL CONTENT
[0005] Therefore, the utility model aims at providing a kind of explosion-proof motor to solve the problems raised in the above background.
[0006] To solve the above technical problems, the utility model provides the following technical scheme: a kind of explosion-proof motor, it includes explosion-proof box, the inside of explosion-proof box is provided with motor, explosion-proof box is coaxially arranged with motor, one end of motor is provided with output shaft, output shaft penetrates one side of explosion-proof box, one end of output shaft is located at the outside of explosion-proof box;Explosion-proof box bottom is provided with a pair of first liquid inlet hole, the bottom end of explosion-proof box is provided with cooling liquid box, first liquid inlet hole is communicated with explosion-proof box.
[0007] As a preferred scheme of the utility model described a kind of explosion-proof motor, wherein: the inside bottom surface of explosion-proof box is provided with partition layer, partition layer is hollow structure, partition layer is prismatic, the bottom surface of partition layer is attached to the inside bottom surface of explosion-proof box, the top surface of partition layer is provided with flow guide layer, the top surface of flow guide layer is provided with shunt layer, the size of shunt layer is attached to the size of one end of flow guide layer, the other end of shunt layer is connected to the other end of motor.
[0008] As a preferred scheme of the explosion-proof motor, the side of the motor is uniformly provided with a plurality of stabilizing rings, the stabilizing rings are hollow structures, connecting rods are connected between the stabilizing rings, the connecting rods are hollow structures, the stabilizing rings and the connecting rods are in communication with each other, one end of the connecting rod on one side is connected with the flow guide layer and is in communication with the flow guide layer.
[0009] As a preferred scheme of the explosion-proof motor, the inside center of the flow distribution layer is provided with a partition plate, the size of the partition plate is same with the inner diameter size of the flow distribution layer, a pair of second mounting plates are symmetrically arranged on the flow distribution layer, the second mounting plates penetrate the top surface of the flow distribution layer, the inside of the second mounting plates is provided with first connecting pipes, each second mounting plate corresponds to a connecting rod, the second mounting plate and the inside of the connecting rod are in communication; a pair of first mounting holes are symmetrically arranged on the flow distribution layer on the symmetric side of the second mounting plate, the first mounting holes penetrate the flow distribution layer and the partition plate, the inside of the first mounting holes is provided with second connecting pipes, the two ends of the second connecting pipes are flush with the two ends of the flow distribution layer, each first mounting hole also corresponds to a connecting rod, and the first mounting hole is also in communication with the connecting rod.
[0010] As a preferred scheme of the explosion-proof motor, the center of the partition plate is provided with a liquid outlet pipe, the top surface of the liquid outlet pipe is flush with the bottom surface of the partition plate, and the other end of the liquid outlet pipe is located in the inside of the partition layer; the bottom surface of the flow distribution layer is provided with a second liquid inlet hole, the second liquid inlet hole penetrates the bottom surface of the flow distribution layer, the number of the second liquid inlet holes is same with the number of the second connecting pipes, and the center of the second liquid inlet hole is coincident with the center of the second connecting pipe.
[0011] As a preferred scheme of the explosion-proof motor, the inside of the cooling liquid box is provided with a circulating box, the cross-sectional shape of the circulating box is same with the cross-sectional shape of the cooling liquid box, the top surface of the circulating box is connected with the liquid outlet pipe, and the thickness of the circulating box is same with the width of the liquid outlet pipe.
[0012] As a preferred scheme of the explosion-proof motor, the inside of the circulating box is provided with a sliding plate, and the cross-sectional size of the sliding plate is same with the cross-sectional size of the circulating box.
[0013] As a preferred scheme of the explosion-proof motor, the two side bottom surfaces of the circulating box are uniformly provided with a plurality of through holes.
[0014] The explosion-proof motor has the advantages that the cooling liquid in the cooling liquid box enters the inside of the explosion-proof box, surrounds the side of the motor, and isolates and cools the motor.
[0015] 1. The explosion-proof motor has the advantages that the cooling liquid in the cooling liquid box enters the inside of the explosion-proof box, surrounds the side of the motor, and isolates and cools the motor.
[0016] 2.The utility model provides a kind of explosion-proof motor, by setting circulation box, cooling liquid heat absorption expansion in the side of motor, volume increases, from liquid outlet pipe into circulation box, again drive the gas cooling liquid in the inside of explosion-proof box enters the side of motor, realize the circulation of cooling liquid, improve the cooling effect of motor. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor. Among them:
[0018] Figure 1 It is the overall structure schematic diagram of the utility model explosion-proof motor;
[0019] Figure 2 It is the utility model explosion-proof motor sectional view structure schematic Figure One ;
[0020] Figure 3 It is the utility model explosion-proof motor sectional view structure schematic Figure Two ;
[0021] Figure 4 It is the utility model explosion-proof motor sectional view structure schematic Figure Three ;
[0022] Figure 5 It is the utility model explosion-proof motor partial sectional view structure schematic Figure One ;
[0023] Figure 6 It is the utility model explosion-proof motor partial sectional view structure schematic Figure Two ;
[0024] Figure 7 It is the utility model explosion-proof motor partial sectional view structure schematic Figure Three ;
[0025] Figure 8 It is the utility model explosion-proof motor partial sectional view structure schematic Figure Four .
[0026] BRIEF DESCRIPTION OF DRAWINGS
[0027] 1, explosion-proof box; 11, cooling liquid box; 12, first liquid inlet hole; 2, motor; 21, output shaft; 3, flow guide layer; 31, stabilizing ring; 32, connecting rod; 33, first mounting hole; 34, partition layer; 35, flow distribution layer; 36, partition plate; 37, second mounting plate; 4, circulation box; 41, through hole; 42, sliding plate; 5, liquid outlet pipe; 51, second liquid inlet hole; 6, first connecting pipe; 61, second connecting pipe. DETAILED DESCRIPTION
[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent and easy to understand, the specific embodiments of the utility model are described in detail below with reference to the accompanying drawings of the specification.
[0029] REFERENCE Figures 1-8 The explosion-proof motor provided by the utility model comprises an explosion-proof box 1, a motor 2 arranged in the explosion-proof box 1, the explosion-proof box 1 and the motor 2 are coaxially arranged, one end of the motor 2 is provided with an output shaft 21, the output shaft 21 penetrates one side of the explosion-proof box 1, and one end of the output shaft 21 is located outside the explosion-proof box 1; a pair of first liquid inlet holes 12 are arranged on the bottom surface of the explosion-proof box 1, a cooling liquid box 11 is arranged at the bottom end of the explosion-proof box 1, and the first liquid inlet holes 12 are in communication with the explosion-proof box 1.
[0030] Specifically, the motor 2 is arranged in the explosion-proof box 1, the explosion-proof box 1 and the motor 2 are coaxially arranged, one end of the motor 2 is provided with the output shaft 21, the output shaft 21 penetrates one side of the explosion-proof box 1, and one end of the output shaft 21 is located outside the explosion-proof box 1, the motor 2 is isolated from the outside through the explosion-proof box 1, and the motor 2 drives the output shaft 21 to work outside the explosion-proof box 1; a pair of first liquid inlet holes 12 are arranged on the bottom surface of the explosion-proof box 1, a cooling liquid box 11 is arranged at the bottom end of the explosion-proof box 1, and the first liquid inlet holes 12 are in communication with the explosion-proof box 1, the cooling liquid in the cooling liquid box 11 is stored through the cooling liquid box 11, and the cooling liquid in the cooling liquid box 11 enters the cooling liquid box 11 through the first liquid inlet holes 12.
[0031] The inside bottom surface of the explosion-proof box 1 is provided with a partition layer 34, the partition layer 34 is a hollow structure, the partition layer 34 is a prismatic frustum, the bottom surface of the partition layer 34 is attached to the inside bottom surface of the explosion-proof box 1, the top surface of the partition layer 34 is provided with a flow guide layer 3, the top surface of the flow guide layer 3 is provided with a flow distribution layer 35, the size of the flow distribution layer 35 is attached to one end size of the flow guide layer 3, and the other end of the flow distribution layer 35 is connected to the other end of the motor 2.
[0032] Specifically, the cooling liquid in the cooling liquid box 11 enters the explosion-proof box 1, and the motor 2 is separated from the cooling liquid in the cooling liquid box 11 by the partition layer 34, so that the cooling liquid does not directly contact the motor 2 and damage the motor 2; the pressure of the cooling liquid entering one end of the partition layer 34 is increased by the flow guide layer 3; one end of the motor 2 is fixed by the flow distribution layer 35, and the one end of the motor 2 is cooled by the flow distribution layer 35.
[0033] The motor 2 is uniformly provided with a plurality of stabilizing rings 31, the stabilizing rings 31 are hollow structures, connecting rods 32 are connected between the stabilizing rings 31, the connecting rods 32 are hollow structures, the stabilizing rings 31 and the connecting rods 32 are connected to each other, one end of one connecting rod 32 is connected to the flow guide layer 3 and is connected to the flow guide layer 3.
[0034] Specifically, the stabilizing ring 31 stores the cooling liquid, and the motor 2 is clamped and cooled at the same time, the cooling liquid in the plurality of stabilizing rings 31 is connected by the connecting rod 32, and the cooling effect of the stabilizing ring 31 on the motor 2 is improved.
[0035] A partition plate 36 is arranged at the center of the inside of the flow distribution layer 35, the size of the partition plate 36 is the same as the inner diameter of the flow distribution layer 35, a pair of second mounting plates 37 are symmetrically arranged on the flow distribution layer 35, the second mounting plates 37 penetrate the top surface of the flow distribution layer 35, the second mounting plates 37 are provided with first connecting pipes 6 inside, each second mounting plate 37 corresponds to one connecting rod 32, and the second mounting plate 37 is connected to the inside of the connecting rod 32; a pair of first mounting holes 33 are symmetrically arranged on the flow distribution layer 35 on the symmetric side of the second mounting plate 37, the first mounting holes 33 penetrate the flow distribution layer 35 and the partition plate 36, the first mounting holes 33 are provided with second connecting pipes 61 inside, and the two ends of the second connecting pipes 61 are flush with the two ends of the flow distribution layer 35; each first mounting hole 33 also corresponds to one connecting rod 32, and the first mounting hole 33 is also connected to the connecting rod 32.
[0036] Specifically, the inside of the flow distribution layer 35 is divided into two parts by the partition plate 36, in the process of the motor 2 working and heating up, the volume of the cooling liquid in the stabilizing ring 31 increases, and the cooling liquid enters the upper part of the partition plate 36 through the second mounting plate 37; the cooling liquid below the partition layer 34 is separated from the inside of the flow distribution layer 35 by the first connecting pipe 6 in the first mounting hole 33.
[0037] The center of the partition plate 36 is provided with a liquid outlet pipe 5, the top surface of the liquid outlet pipe 5 is flush with the bottom surface of the partition plate 36, and the other end of the liquid outlet pipe 5 is located in the inside of the partition layer 34; the bottom surface of the flow distribution layer 35 is provided with a second liquid inlet hole 51, the second liquid inlet hole 51 penetrates the bottom surface of the flow distribution layer 35, the number of the second liquid inlet hole 51 is the same as the number of the second connecting pipe 61, and the center of the second liquid inlet hole 51 coincides with the center of the second connecting pipe 61.
[0038] Specifically, the cooling liquid in the stabilizing ring 31 is heated and expanded, enters the lower side of the partition plate 36 from the first connecting pipe 6, and is discharged from the liquid outlet pipe 5, realizing the circulation of the cooling liquid and improving the continuous cooling effect of the motor 2; the cooling liquid in the separation layer 34 enters the second connecting pipe 61 from the second liquid inlet hole 51, and then enters the stabilizing ring 31 from the connecting rod 32, continuously cooling the motor 2.
[0039] The inside of the cooling liquid box 11 is provided with a circulation box 4, the cross-sectional shape of the circulation box 4 is the same as that of the cooling liquid box 11, the top surface of the circulation box 4 is connected with the liquid outlet pipe 5, and the thickness of the circulation box 4 is the same as the width of the liquid outlet pipe 5.
[0040] Specifically, the circulation box 4 is fixed by the cooling liquid box 11, and the inside of the circulation box 4 also stores cooling liquid.
[0041] The inside of the circulation box 4 is provided with a sliding plate 42, and the cross-sectional size of the sliding plate 42 is the same as that of the circulation box 4.
[0042] Specifically, the cooling liquid above the partition plate 36 is introduced into the upper side of the sliding plate 42 in the inside of the circulation box 4 through the liquid outlet pipe 5, the sliding plate 42 is pushed to move in the inside of the circulation box 4 by the downward pressure of the cooling liquid above the sliding plate 42.
[0043] The two side bottom surfaces of the circulation box 4 are uniformly provided with a plurality of through holes 41.
[0044] Specifically, the cooling liquid in the inside of the circulation box 4 is extruded out of the through holes 41 by the movement of the sliding plate 42 in the inside of the circulation box 4, the cooling liquid discharged from the through holes 41 presses the cooling liquid outside the circulation box 4 in the inside of the cooling liquid box 11, the cooling liquid in the outside of the circulation box 4 in the inside of the cooling liquid box 11 enters the separation layer 34 from 13, and then enters the lower side of the partition plate 36 in the shunt layer 35 from the second liquid inlet hole 51, and then enters the stabilizing ring 31 from the second connecting pipe 61, realizing the circulation of the cooling liquid.
[0045] During use, after the motor 2 works and generates heat, the heat generated by the motor 2 is transferred to the inside of the stabilizing ring 31, the cooling liquid in the inside of the stabilizing ring 31 absorbs heat and expands, and then enters the inside of the shunt layer 35 from the connecting rod 32 through the second mounting plate 37, enters the inside of the circulation box 4 from the liquid outlet pipe 5, and generates downward pressure on the sliding plate 42 in the inside of the circulation box 4, pushing the sliding plate 42 to move. When the sliding plate 42 moves, the cooling liquid in the inside of the circulation box 4 is pushed into the inside of the cooling liquid box 11 from the through holes 41, the liquid pressure in the inside of the cooling liquid box 11 is increased, the cooling liquid enters the separation layer 34 from 13, and then enters the connecting rod 32 from the second liquid inlet hole 51, realizing the circulation of the cooling liquid and the isolation liquid cooling of the motor 2.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.
Claims
1. An explosion-proof electric machine comprising an explosion-proof box (1), characterized in that: The inside of the explosion-proof box (1) is provided with a motor (2), the explosion-proof box (1) is coaxially arranged with the motor (2), one end of the motor (2) is provided with an output shaft (21), the output shaft (21) penetrates one side of the explosion-proof box (1), and one end of the output shaft (21) is located outside the explosion-proof box (1); a pair of first liquid inlet holes (12) are arranged on the bottom surface of the explosion-proof box (1), and a cooling liquid box (11) is arranged at the bottom end of the explosion-proof box (1); the first liquid inlet hole (12) is communicated with the explosion-proof box (1).
2. An explosion-proof electric machine according to claim 1, characterized in that: The inside bottom surface of the explosion-proof box (1) is provided with a partition layer (34), the partition layer (34) is a hollow structure, the partition layer (34) is a prismatic frustum, the bottom surface of the partition layer (34) is attached to the inside bottom surface of the explosion-proof box (1), the top surface of the partition layer (34) is provided with a flow guide layer (3), the top surface of the flow guide layer (3) is provided with a flow distribution layer (35), the size of the flow distribution layer (35) is attached to one end of the flow guide layer (3), and the other end of the flow distribution layer (35) is connected to the other end of the motor (2).
3. An explosion-proof electric machine according to claim 2, characterized in that: The motor (2) is uniformly provided with a plurality of stabilizing rings (31) on the side surface, the stabilizing rings (31) are hollow structures, the stabilizing rings (31) are connected with connecting rods (32), the connecting rods (32) are hollow structures, the stabilizing rings (31) and the connecting rods (32) are communicated with each other, one end of the connecting rod (32) is connected with the flow guide layer (3) and communicated with the flow guide layer (3).
4. An explosion-proof electric machine according to claim 3, characterized in that: The inside center of the flow distribution layer (35) is provided with a partition plate (36), the size of the partition plate (36) is the same as the inner diameter of the flow distribution layer (35), a pair of second mounting plates (37) are symmetrically arranged on the flow distribution layer (35), the second mounting plates (37) penetrate the top surface of the flow distribution layer (35), the inside of the second mounting plate (37) is provided with a first connecting pipe (6), each second mounting plate (37) corresponds to one connecting rod (32), the second mounting plate (37) is communicated with the inside of the connecting rod (32); a pair of first mounting holes (33) are symmetrically arranged on the flow distribution layer (35) on the symmetric side of the second mounting plate (37), the first mounting holes (33) penetrate the flow distribution layer (35) and the partition plate (36), the inside of the first mounting hole (33) is provided with a second connecting pipe (61), the two ends of the second connecting pipe (61) are flush with the two ends of the flow distribution layer (35), and each first mounting hole (33) also corresponds to one connecting rod (32).
5. A flameproof electric machine according to claim 4, characterised in that: The center of the partition plate (36) is provided with a liquid outlet pipe (5), the top surface of the liquid outlet pipe (5) is flush with the bottom surface of the partition plate (36), and the other end of the liquid outlet pipe (5) is located in the inside of the partition layer (34); the bottom surface of the flow distribution layer (35) is provided with a second liquid inlet hole (51), the second liquid inlet hole (51) penetrates the bottom surface of the flow distribution layer (35), the number of the second liquid inlet hole (51) is the same as the number of the second connecting pipe (61), and the center of the second liquid inlet hole (51) coincides with the center of the second connecting pipe (61).
6. An explosion-proof electric machine according to claim 5, characterized in that: The inside of the cooling liquid box (11) is provided with a circulating box (4), the cross-sectional shape of the circulating box (4) is the same as that of the cooling liquid box (11), the top surface of the circulating box (4) is connected with the liquid outlet pipe (5), and the thickness of the circulating box (4) is the same as the width of the liquid outlet pipe (5).
7. An explosion-proof electric machine according to claim 6, characterized in that: The inside of the circulating box (4) is provided with a sliding plate (42), and the cross-sectional size of the sliding plate (42) is the same as that of the circulating box (4).
8. A flameproof electric machine according to claim 7, characterised in that: The two side bottom surfaces of the circulating box (4) are uniformly provided with a plurality of through holes (41).