Circulating heat dissipation device for explosion-proof motor

Abstract

The utility model relates to the technical field of motor heat dissipation, and discloses a circulating heat dissipation device for an explosion-proof motor, and the device comprises a mounting seat which sleeves the peripheral surface of a housing. The flow guide assembly is filled with cooling liquid, the flow guide assembly comprises a flow guide part mounted on the mounting base, a flow dividing part mounted at one end of the flow guide part and a flow converging part mounted at the other end of the flow guide part, and the flow guide part comprises a first flow guide part mounted on the peripheral surface of the mounting base and a second flow guide part located near the first flow guide part; the flow dividing part, the first flow guide part, the confluence part and the second flow guide part communicate with one another; and the driving assembly comprises an installation frame located in the flow dividing part and a pushing part installed on the installation frame, and the pushing part is in transmission connection with the explosion-proof motor. The explosion-proof motor has the effect of reducing the possibility that external impurities affect the heat dissipation effect of the explosion-proof motor.

Description

Technical Field

[0001] The present application relates to the technical field of motor heat dissipation, and in particular to a circulating heat dissipation device for explosion-proof motors. Background Art

[0002] Explosion-proof motors are motors that can be used in flammable and explosive places and do not generate sparks during operation. Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries. In addition, they are also widely used in textiles, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and other sectors. As the main power equipment, explosion-proof motors are usually used to drive pumps, fans, compressors and other transmission machinery.

[0003] The operation process of the motor is a process of mutual conversion between electrical energy and mechanical energy. Some losses are likely to occur during this conversion process. Most of these losses will be converted into heat, thus causing the internal temperature of the motor to rise.

[0004] In order to facilitate the heat dissipation of explosion-proof motors, a cooling fan is generally installed at the end of the explosion-proof motor, and a number of cooling holes are opened at the end of the explosion-proof motor. When the explosion-proof motor is working, the cooling fan discharges the heat of the explosion-proof motor from the cooling holes. However, when the explosion-proof motor is in a working environment with a lot of impurities, when the explosion-proof motor stops working, foreign impurities can easily enter the explosion-proof motor from the cooling holes, thereby affecting the heat dissipation effect of the explosion-proof motor. Utility Model Content

[0005] In order to reduce the possibility of external impurities affecting the heat dissipation effect of explosion-proof motors, the present application provides a circulating heat dissipation device for explosion-proof motors.

[0006] The present application provides a circulating heat dissipation device for explosion-proof motors using the following technical solutions:

[0007] A circulating heat dissipation device for an explosion-proof motor, the circulating heat dissipation device is used to dissipate heat from a shell of the explosion-proof motor, the circulating heat dissipation device comprises:

[0008] A mounting seat, the mounting seat is sleeved on the outer peripheral surface of the shell;

[0009] A flow guide assembly, wherein the flow guide assembly is filled with coolant, the flow guide assembly comprises a flow guide portion mounted on the mounting seat, a flow divider portion mounted on one end of the flow guide portion, and a flow converging portion mounted on the other end of the flow guide portion, the flow guide portion comprises a first flow guide member mounted on the outer peripheral surface of the mounting seat and a second flow guide member located near the first flow guide member, the flow divider portion, the first flow guide member, the flow converging portion, and the second flow guide member are connected to each other;

[0010] A driving assembly, the driving assembly comprising a mounting frame located inside the diverter portion and a pushing portion mounted on the mounting frame, the pushing portion being drivingly connected to the explosion-proof motor;

[0011] When the explosion-proof motor is cooled, the explosion-proof motor causes the pushing part to drive the coolant inside the flow guide assembly to circulate among the diverter part, the first flow guide, the converging part, the second flow guide and the diverter part in sequence.

[0012] Optionally, a plurality of first flow guide members are circumferentially arranged along the axial direction of the mounting seat.

[0013] Optionally, a plurality of the second flow guide members are arranged along the axis direction of the mounting seat, and each of the second flow guide members is located between two adjacent first flow guide members.

[0014] Optionally, the first flow guide member includes a diverter tube installed on the outer peripheral surface of the mounting seat and a plurality of diverter plates installed inside the diverter tube, one end of the diverter tube is connected to the diverter portion, and the other end of the diverter tube is connected to the confluence portion, the length direction of each diverter plate is consistent with the length direction of the diverter tube, and a plurality of diverter plates divide the diverter tube into a plurality of diverter areas.

[0015] Optionally, the diverter part includes a diverter ring installed near the liquid inlet end of the first guide member and a return plate installed on the side of the diverter ring away from the first guide member. A diverter groove is provided on the side of the diverter ring close to the first guide member, the diverter groove is connected to the liquid inlet end of the first guide member, and the diverter grooves pass through the inner wall of the diverter ring.

[0016] Optionally, a guide block is provided inside the diversion trough.

[0017] Optionally, a first reflux hole is provided on a side of the diverter ring close to the second guide member, the liquid outlet end of the second guide member is connected to the first reflux hole, a reflux groove is provided in the middle position of a side of the reflux plate close to the diverter ring, a second reflux hole is provided on the inner wall of the reflux groove, and the first reflux hole is connected to the second reflux hole.

[0018] Optionally, the pushing portion includes a plurality of pushing plates mounted on the mounting frame, the plurality of pushing plates are circumferentially distributed along the axis direction of the mounting frame, and the plurality of pushing plates are all inclined in the same direction.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. When the explosion-proof motor is working, the explosion-proof motor drives several pushers to rotate. During the rotation of the pushers, the pushers push the coolant into the diverter slot, and guide the coolant through the guide block placed inside the diverter slot, so that the coolant circulates between the diverter, guide, and confluence parts in sequence. The heat of the explosion-proof motor is transferred to the guide part through the housing and the mounting seat, and heat is exchanged through the coolant to reduce the temperature of the explosion-proof motor.

[0021] 2. When the coolant flows into the diverter pipe, a number of diverter plates divert the coolant inside the diverter pipe. The larger contact area between the coolant and the diverter plates improves the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0023] Figure 2 It is a schematic diagram showing the relative positions of the mounting seat and the guide assembly in the embodiment of the present application.

[0024] Figure 3 It is a schematic diagram of the diversion part structure in the embodiment of the present application.

[0025] Figure 4 It is a schematic diagram showing the relative positions of the mounting seat and the first guide assembly in the embodiment of the present application.

[0026] Figure 5 It is a schematic diagram of the confluence structure in the embodiment of the present application.

[0027] Figure 6 It is a schematic diagram of the relative positions of the drive assembly and the rotating shaft in the embodiment of the present application.

[0028] Description of reference numerals:

[0029] 1. Mounting seat; 2. Guide assembly; 21. Diverter; 211. Diverter ring; 2111. Diverter slot; 2112. Guide block; 2113. First return hole; 212. Return plate; 2121. Return slot; 22. Guide; 221. First guide piece; 2211. Diverter tube; 2212. Diverter sheet; 222. Second guide piece; 23. Converging part; 231. Converging slot; 232. Converging hole; 3. Drive assembly; 31. Mounting frame; 311. Mounting ring; 312. Mounting cylinder; 32. Pushing part; 321. Pushing sheet; 4. Housing; 5. Rotating shaft. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-Figure 5 This application is described in further detail.

[0031] The embodiment of the present application discloses a circulating heat dissipation device for an explosion-proof motor.

[0032] An explosion-proof motor includes a housing 4 and a rotating shaft 5. The housing 4 includes a shell, a front cover and a rear cover. The shell is in a hollow cylindrical shape, and the front cover and the rear cover are respectively fixedly mounted at both ends of the shell. The shell, the front cover and the rear cover form a working cavity. The rotating shaft 5 is located inside the shell. The rotating shaft 5 and the housing 4 are coaxial. One end of the rotating shaft 5 rotates through the front cover, and the other end of the rotating shaft 5 rotates through the rear cover. The rotating shaft 5 can rotate around its own axis inside the housing 4.

[0033] A circulating heat dissipation device for an explosion-proof motor comprises a mounting seat 1, a flow guide assembly 2 and a drive assembly 3. The mounting seat 1 is fixedly mounted on the outer peripheral surface of a shell of a housing 4, the flow guide assembly 2 is mounted on the mounting seat 1, and the flow guide assembly 2 is filled with a coolant. In the embodiment of the present application, the coolant is water. The drive assembly 3 is mounted on the mounting seat 1, and the drive assembly 3 is used to make the coolant flow inside the flow guide assembly 2.

[0034] When the explosion-proof motor is working, the driving component 3 makes the coolant flow inside the guide component 2. The heat generated inside the explosion-proof motor is transferred to the mounting seat 1 and the guide component 2 through the shell. The coolant inside the guide component 2 performs heat exchange on the heat transferred to the guide component 2, thereby dissipating the heat of the explosion-proof motor.

[0035] The mounting base 1 is cylindrically arranged and sleeved on the outer periphery of the shell. The inner wall of the mounting base 1 fits the outer peripheral surface of the shell to facilitate the heat transfer from the shell 4 to the mounting base 1, and the mounting base 1 and the shell 4 are detachably connected by screws.

[0036] The flow guide assembly 2 includes a flow divider 21, a flow guide 22 and a flow confluence 23. The flow divider 21 is located at a position of the mounting seat 1 close to the rear end cover, the flow confluence 23 is installed at a position of the mounting seat 1 close to the front end cover, the flow guide 22 is located between the flow divider 21 and the flow confluence 23, and the coolant circulates among the flow divider 21, the flow guide 22 and the flow confluence 23.

[0037] The flow dividing part 21 includes a flow dividing ring 211 and a return plate 212. The return plate 212 is located on the side wall of the flow dividing ring 211, and the return plate 212 and the separation ring are integrally formed. The flow dividing ring 211 is coaxial with the mounting seat 1, and the flow dividing ring 211 and the mounting seat 1 are fixedly connected, and the return plate 212 is located on the side of the flow dividing ring 211 away from the mounting seat 1. The flow dividing ring 211, the return plate 212 and the rear end cover form a flow dividing area, and the driving assembly 3 is located inside the flow dividing area.

[0038] A plurality of diverter grooves 2111 are provided on the side of the diverter ring 211 close to the mounting seat 1, and the plurality of diverter grooves 2111 are evenly distributed along the axis direction of the diverter ring 211. Each diverter groove 2111 penetrates the inner wall of the diverter ring 211. In order to improve the efficiency of the coolant flowing inside the diverter groove 2111, a guide block 2112 is fixedly installed inside each diverter groove 2111. A plurality of first return holes 2113 are provided on the side of the diverter ring 211 close to the mounting seat 1, and the plurality of first return holes 2113 are evenly distributed along the axis direction of the diverter ring 211, and each first return hole 2113 is located between two adjacent diverter grooves 2111.

[0039] A reflux groove 2121 is provided on one side of the reflux plate 212 close to the mounting seat 1, and the reflux groove 2121 is located in the middle of the reflux plate 212. A plurality of second reflux holes are provided on the side wall of the reflux groove 2121. The plurality of first reflux holes 2113 correspond to the plurality of second reflux holes one by one, and the first reflux holes 2113 are connected to the corresponding second reflux holes.

[0040] The flow guide portion 22 includes a first flow guide 221 and a second flow guide 222. The first flow guide 221 is located on the outer peripheral surface of the mounting seat 1, and a plurality of first flow guides 221 are provided, and the plurality of first flow guides 221 are evenly distributed along the axial direction of the mounting seat 1.

[0041] The first flow guide 221 includes a shunt pipe 2211 and a shunt plate 2212. The shunt pipe 2211 and the mounting seat 1 are integrally formed, the length direction of the shunt pipe 2211 is consistent with the axial direction of the mounting seat 1, the shunt pipe 2211 is a rectangular pipe, and both ends of the shunt pipe 2211 are provided with openings, the shunt plate 2212 is located inside the shunt pipe 2211, and there are a plurality of shunt plates 2212, each of which is consistent with the length direction of the shunt pipe 2211, and the shunt pipe 2211 is divided into a plurality of flow guide areas by the plurality of shunt pipes 2211 and a plurality of shunt grooves 2111 correspond one to one, and the liquid inlet end of each shunt pipe 2211 is connected with the corresponding shunt groove 2111.

[0042] The second guide member 222 is a reflux pipe, and a plurality of reflux pipes are provided. The plurality of reflux pipes are evenly distributed circumferentially along the axial direction of the mounting seat 1 , and each reflux pipe is located between two adjacent branch pipes 2211 , and the plurality of reflux pipes correspond to the plurality of first reflux holes 2113 one by one, and the liquid outlet end of each reflux pipe is connected to the first reflux hole 2113 .

[0043] The confluence portion 23 is located at one end of the mounting seat 1 away from the diversion portion 21. The confluence portion 23 is a hollow ring, and a plurality of confluence grooves 231 are provided on the side of the confluence portion 23 close to the mounting seat 1. The confluence grooves 231 are connected to the inside of the confluence portion 23. The plurality of confluence grooves 231 correspond one-to-one to the plurality of diversion tubes 2211, and the liquid outlet end of the diversion tube 2211 is connected to the corresponding confluence groove 231.

[0044] A plurality of confluence holes 232 are also provided on one side of the confluence portion 23 close to the mounting seat 1. The plurality of confluence holes 232 are evenly distributed circumferentially along the axis direction of the confluence portion 23, and the confluence holes 232 are connected to the inside of the confluence portion 23, and each confluence hole 232 is located between two adjacent confluence grooves 231. The plurality of confluence holes 232 correspond to the plurality of reflux pipes one by one, and the liquid inlet end of the reflux pipe is connected to the corresponding confluence hole 232.

[0045] The driving assembly 3 includes a mounting frame 31 and a pushing portion 32. The mounting frame 31 includes a mounting ring 311 and a mounting cylinder 312. The mounting cylinder 312 is fixedly mounted on the side wall of the mounting ring 311, and the mounting ring 311 and the mounting cylinder 312 are coaxial. The mounting ring 311 and the mounting cylinder 312 are sleeved on the outer circumference of the rotating shaft 5 of the explosion-proof motor, and the mounting cylinder 312 is fixedly connected to the rotating shaft 5 of the explosion-proof motor.

[0046] The pushing portion 32 is mounted on the outer circumference of the mounting tube 312 , and includes a plurality of pushing pieces 321 , which are evenly distributed along the axial direction of the mounting tube 312 , each pushing piece 321 is perpendicular to the mounting ring 311 , and each pushing piece 321 is inclined in the same direction.

[0047] The implementation principle of a circulating heat dissipation device for explosion-proof motors in the embodiment of the present application is as follows: when the explosion-proof motor is working, the rotating shaft 5 of the explosion-proof motor drives a plurality of push plates 321 to rotate around the axis direction of the mounting tube 312 through the mounting frame 31. During the rotation of the push plates 321, the push plates 321 push the coolant into the inside of the reflux groove 2121, and guide the coolant through the guide block 2112 placed inside the shunt groove 2111, so that the coolant circulates in the shunt pipe 2211, the inside of the confluence part 23, the second guide member 222 and the reflux groove 2121 in sequence. The heat of the explosion-proof motor is transferred to the shunt pipe 2211 through the housing 4 and the mounting seat 1, and heat is exchanged through the coolant, thereby reducing the temperature of the explosion-proof motor. When the coolant flows into the shunt pipe 2211, a plurality of shunt plates 2212 shunt the coolant inside the shunt pipe 2211, and the larger contact area between the coolant and the shunt plates 2212 improves the heat exchange efficiency.

[0048] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A circulating heat dissipation device for an explosion-proof motor, the circulating heat dissipation device being used to dissipate heat from a housing (4) of the explosion-proof motor, characterized in that: The circulating heat dissipation device comprises: A mounting seat (1), wherein the mounting seat (1) is sleeved on the outer peripheral surface of the outer shell (4); A flow guide component (2), wherein the flow guide component (2) is filled with a coolant, the flow guide component (2) comprises a flow guide portion (22) mounted on the mounting seat (1), a flow divider portion (21) mounted at one end of the flow guide portion (22), and a flow converging portion (23) mounted at the other end of the flow guide portion (22), the flow guide portion (22) comprises a first flow guide member (221) mounted on the outer peripheral surface of the mounting seat (1) and a second flow guide member (222) located near the first flow guide member (221), the flow divider portion (21), the first flow guide member (221), the flow converging portion (23), and the second flow guide member (222) are connected to each other; A driving assembly (3), the driving assembly (3) comprising a mounting frame (31) located inside the diverter portion (21) and a pushing portion (32) mounted on the mounting frame (31), the pushing portion (32) being in driving connection with an explosion-proof motor; When the explosion-proof motor is cooled, the explosion-proof motor causes the pushing portion (32) to drive the coolant inside the flow guide assembly (2) to circulate in sequence among the flow diversion portion (21), the first flow guide member (221), the converging portion (23), the second flow guide member (222) and the flow diversion portion (21).

2. The circulating heat dissipation device for explosion-proof motor according to claim 1, characterized in that: A plurality of the first flow guide members (221) are arranged circumferentially along the axial direction of the mounting seat (1).

3. The circulating heat dissipation device for explosion-proof motor according to claim 2, characterized in that: A plurality of the second flow guide members (222) are arranged along the axial direction of the mounting seat (1), and each of the second flow guide members (222) is located between two adjacent first flow guide members (221).

4. The circulating heat dissipation device for explosion-proof motor according to claim 1, characterized in that: The first flow guide member (221) comprises a shunt tube (2211) mounted on the outer peripheral surface of the mounting seat (1) and a plurality of shunt plates (2212) mounted inside the shunt tube (2211); one end of the shunt tube (2211) is connected to the shunt portion (21); the other end of the shunt tube (2211) is connected to the confluence portion (23); the length direction of each shunt plate (2212) is consistent with the length direction of the shunt tube (2211); and the plurality of shunt plates (2212) divide the shunt tube (2211) into a plurality of shunt areas.

5. The circulating heat dissipation device for explosion-proof motor according to claim 1, characterized in that: The flow dividing portion (21) comprises a flow dividing ring (211) installed at a position close to a liquid inlet end of the first flow guiding member (221) and a return plate (212) installed at a side of the flow dividing ring (211) away from the first flow guiding member (221); a flow dividing groove (2111) is provided on a side of the flow dividing ring (211) close to the first flow guiding member (221); the flow dividing groove (2111) is communicated with the liquid inlet end of the first flow guiding member (221), and the flow dividing groove (2111) passes through the inner wall of the flow dividing ring (211).

6. The circulating heat dissipation device for explosion-proof motor according to claim 5, characterized in that: A guide block (2112) is arranged inside the diversion groove (2111).

7. The circulating heat dissipation device for explosion-proof motor according to claim 5, characterized in that: A first reflux hole (2113) is provided on a side of the diverter ring (211) close to the second flow guide member (222); a liquid outlet end of the second flow guide member (222) is connected to the first reflux hole (2113); a reflux groove (2121) is provided at a middle position of a side of the reflux plate (212) close to the diverter ring (211); a second reflux hole is provided on an inner wall of the reflux groove (2121); and the first reflux hole (2113) is connected to the second reflux hole.

8. The circulating heat dissipation device for explosion-proof motor according to claim 1, characterized in that: The pushing portion (32) comprises a plurality of pushing pieces (321) mounted on the mounting frame (31); the plurality of pushing pieces (321) are distributed circumferentially along the axis direction of the mounting frame (31), and the plurality of pushing pieces (321) are all inclined in the same direction.

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