Heat-dissipating variable frequency speed-regulating motor

Abstract

The application relates to the technical field of motors, in particular to a heat-dissipation variable-frequency speed-regulating motor which comprises a speed-regulating motor body and a heat-dissipation box body, the speed-regulating motor body and the heat-dissipation box body can be assembled together, a butt joint mechanism is arranged between the speed-regulating motor body and the heat-dissipation box body, a water-cooling heat-dissipation mechanism is arranged on the speed-regulating motor body and the heat-dissipation box body, a cooling mechanism for a motor output shaft is arranged on the speed-regulating motor body, the water-cooling heat-dissipation mechanism comprises an inner pipe body, water flows in a water flow guide pipe, enters an annular sealed cavity formed by the speed-regulating motor body and the heat-dissipation box body and the inner pipe body from an upper butt joint piece, moves in the annular sealed cavity, and leaves through a lower butt joint piece, the water flow moves in the annular sealed cavity and contacts the inner pipe body, the inner pipe body is cooled, the stability of a motor rotor is ensured, and the cooling effect of the equipment is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a heat-dissipation variable-frequency speed-regulating electric machine. BACKGROUND

[0002] Electric machinery (commonly known as "motor") refers to an electromagnetic device that realizes electric energy conversion or transmission according to electromagnetic induction law. In an electric circuit, electric machinery is represented by the letter M (or D according to the old standard). Its main function is to generate driving torque, serving as a power source for electric appliances or various machines. In an electric circuit, a generator is represented by the letter G. Its main function is to convert mechanical energy into electric energy.

[0003] During the use of the electric machine, heat generated by the rotation of the rotor is generated in the electric machine. The heat dissipation is mostly realized by the blowing of the fan, which does not directly act on the shell outside the rotor, and the heat dissipation effect is not ideal. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the present application provides a heat-dissipation variable-frequency speed-regulating electric machine.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a heat-dissipation variable-frequency speed-regulating electric machine, comprising a speed-regulating electric machine body and a heat-dissipation box body, the speed-regulating electric machine body and the heat-dissipation box body can be assembled together, a butt joint mechanism is arranged between the speed-regulating electric machine body and the heat-dissipation box body, a water-cooling heat-dissipation mechanism is arranged on the speed-regulating electric machine body and the heat-dissipation box body, and a cooling mechanism for the motor output shaft is arranged on the speed-regulating electric machine body.

[0006] The water-cooling heat-dissipation mechanism comprises an inner pipe body, the inner pipe body is fixedly installed on the inner side walls of the speed-regulating electric machine body and the heat-dissipation box body, and the inner pipe body is suspendedly installed in the cavities of the speed-regulating electric machine body and the heat-dissipation box body, the inner pipe body and the speed-regulating electric machine body and the heat-dissipation box body combine to form an annular sealed cavity, a butt joint piece is fixedly installed outside the speed-regulating electric machine body, a water flow guide pipe and a threaded sealing plug are threadedly installed in the butt joint piece, and a pipeline that is in communication with the speed-regulating electric machine body is arranged on the butt joint piece, the pipeline communicates the annular sealed cavity formed by the inner pipe body and the speed-regulating electric machine body and the heat-dissipation box body.

[0007] As a preferred technical scheme of the present application, the number of butt joint pieces is two, and the butt joint pieces are arranged on the upper and lower sides of the speed-regulating electric machine body respectively, the threaded sealing plug seals the water inlet hole and the water outlet hole on the butt joint piece, the water flow guide pipe communicates the water inlet hole and the water outlet hole on the butt joint piece, a supporting leg is fixedly installed on the lower surface of the speed-regulating electric machine body, and the heat-dissipation box body is clamped on the part extended by the supporting leg.

[0008] As a preferred technical scheme of the present application, the first heat conduction member is fixedly installed on the speed regulating motor body, the second heat conduction member is fixedly installed on the heat dissipation box, the first heat conduction member and the second heat conduction member are both composed of two horizontal rods and a vertical rod, the shorter horizontal rod of the first heat conduction member and the second heat conduction member is fixedly installed on the speed regulating motor body and the heat dissipation box, the longer horizontal rod of the first heat conduction member and the second heat conduction member is fixedly installed on the inner pipe body, and the vertical rod of the first heat conduction member and the second heat conduction member is arranged in the annular cavity formed by the speed regulating motor body, the heat dissipation box and the inner pipe body.

[0009] As a preferred technical scheme of the present application, the abutment mechanism comprises a second arc-shaped sealing band and a first arc-shaped sealing band, the second arc-shaped sealing band and the first arc-shaped sealing band are arranged between the speed regulating motor body and the heat dissipation box, the second arc-shaped sealing band is arranged above the two support legs, the first arc-shaped sealing band is arranged below the two support legs, the second arc-shaped sealing band and the first arc-shaped sealing band are fixedly installed on the heat dissipation box, the side wall of the first arc-shaped sealing band and the second arc-shaped sealing band is provided with a mounting groove, the first arc-shaped sealing band and the second arc-shaped sealing band are both provided with a bolt, the inner side wall of the speed regulating motor body is provided with a nut, the bolt penetrates through the second circular hole formed in the side wall of the speed regulating motor body and is threadedly installed in the nut, the first circular hole formed in the first arc-shaped sealing band and the second arc-shaped sealing band, the edge of the speed regulating motor body and the heat dissipation box is provided with an edge round corner, and an annular sealing band is movably and clampingly installed at the abutting position of the speed regulating motor body and the heat dissipation box, and the annular sealing band is arranged in the second arc-shaped sealing band and the first arc-shaped sealing band.

[0010] As a preferred technical scheme of the present application, the servo motor is fixedly installed in the inner pipe body in the heat dissipation box, the output shaft of the servo motor is fixedly installed with a circular rotating rod, the side wall of the circular rotating rod is fixedly installed with a plurality of fan blades arranged in a circumferential direction, the side wall of the heat dissipation box is provided with a wind guide groove in communication with the inner pipe body, and the arc-shaped spraying pipe is fixedly installed on the inner pipe body in the heat dissipation box.

[0011] As a preferred technical scheme of the present application, the cooling mechanism comprises a rectangular fixed frame, a rectangular fixed part is fixedly installed on the rectangular fixed frame, a screw is threadedly installed on the rectangular fixed part, the rectangular fixed frame is threadedly fixed on the side wall of the speed regulating motor body through the screw, a sealing ring is fixedly installed on the side wall of the rectangular fixed frame, the sealing ring is movably clamped on the speed regulating motor body, an anti-friction ring is fixedly installed in the sealing ring, and the output shaft of the motor rotates in the anti-friction ring, a first annular groove is formed in the side wall of the anti-friction ring, a second annular groove is formed in the side wall of the sealing ring, an annular pipeline is fixedly installed in the first annular groove and the second annular groove, and an L-shaped conduit is fixedly installed on the annular pipeline and communicates with the annular sealing cavity between the speed regulating motor body, the heat dissipation box and the inner pipe body.

[0012] Compared with the prior art, the present application has the following advantages:

[0013] 1. The water flows in the water flow conduit, enters the annular sealing cavity formed by the speed regulating motor body, the heat dissipation box and the inner pipe body from the upper abutting part, moves in the annular sealing cavity, and then leaves through the lower abutting part. The movement of the water in the annular sealing cavity contacts the inner pipe body, thereby cooling the inner pipe body, ensuring the stable operation of the motor rotor and ensuring the cooling effect of the equipment.

[0014] 2. The second arc-shaped sealing band and the first arc-shaped sealing band are arranged to seal the connection between the speed regulating motor body and the heat dissipation box, thereby ensuring the sealing effect of the sealing cavity between the speed regulating motor body, the heat dissipation box and the inner pipe body. The mounting groove formed in the second arc-shaped sealing band can improve the fixing effect of the first arc-shaped sealing band and the second arc-shaped sealing band, thereby ensuring the fixing effect of the equipment.

[0015] 3. The short horizontal rod of the first heat conduction part can contact air, thereby realizing heat exchange between the air and the first heat conduction part and further improving the heat dissipation effect of the first heat conduction part and the second heat conduction part.

[0016] 4. The vertical rods of the first heat conduction part and the second heat conduction part can support the speed regulating motor body, the heat dissipation box and the inner pipe body, thereby improving the strength of the annular sealing cavity formed by the speed regulating motor body, the heat dissipation box and the inner pipe body.

[0017] 5. The water flow enters the heat dissipation box in a mist state through the spray head arranged on the arc-shaped spray pipe, and the mist droplets are blown away by the rotation of the fan blades. The mist droplets can cool the speed regulating motor body and the heat dissipation box, and the movement of the mist droplets in the speed regulating motor body and the heat dissipation box can also cool the equipment, thereby improving the cooling effect of the equipment.

[0018] 6、Through the presence of the L-shaped conduit, the water flow enters the annular pipe, and the annular pipe is arranged between the sealing ring and the anti-friction ring, and the anti-friction ring is cooled through the presence of the water flow in the annular pipe, the output shaft of the motor rotates in the anti-friction ring, and the working temperature of the output shaft of the motor is more stable through the cooling of the anti-friction ring, so that the output shaft of the motor works more stably.

[0019] 7、Through the presence of the rectangular fixed frame, the screw is twisted to threadedly separate the screw from the speed regulating motor body, the rectangular fixed part is disassembled, the rectangular fixed frame is disassembled after the rectangular fixed part is disassembled, the anti-friction ring in the sealing ring is replaced, and the disassembly convenience of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front structure schematic view of the application.

[0021] Figure 2 It is a side structure schematic view of the application.

[0022] Figure 3 It is a back structure schematic view of the application.

[0023] Figure 4 It is a bottom structure schematic view of the application.

[0024] Figure 5 It is a structure schematic view of the heat dissipation box of the application.

[0025] Figure 6 It is a structure schematic view of the speed regulating motor body of the application.

[0026] Figure 7 It is a structure schematic view of the first arc-shaped sealing band and the second arc-shaped sealing band of the application.

[0027] Figure 8 It is a structure schematic view of the first heat conduction member and the second heat conduction member of the application.

[0028] Figure 9 It is a structure schematic view of the cooling mechanism of the application.

[0029] Figure 10 It is an exploded structure schematic view of the cooling mechanism of the application.

[0030] Wherein: 1, the speed regulating motor body; 2, the heat dissipation box; 3, support leg; 4, inner tube body; 11, butt joint; 12, water flow guide pipe; 13, threaded sealing plug; 21, first arc-shaped sealing band; 22, bolt; 24, second arc-shaped sealing band; 25, installation groove; 26, first circular hole; 27, annular sealing band; 28, second circular hole; 29, nut; 31, first heat conduction member; 32, second heat conduction member; 41, servo motor; 42, circular rotating rod; 43, fan blade; 44, arc-shaped spraying pipe; 45, air guide groove; 51, rectangular fixed frame; 52, rectangular fixed member; 53, screw; 54, anti-friction ring; 55, sealing ring; 56, annular pipe; 57, first annular groove; 58, second annular groove; 59, L-shaped guide pipe. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the following specific embodiments are further described, but the following embodiments are only preferred embodiments of the present application, not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application. The experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0032] Embodiment:

[0033] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 indicated, a heat dissipation variable frequency speed regulating motor includes a speed regulating motor body 1 and a heat dissipation box 2, the speed regulating motor body 1 and the heat dissipation box 2 can be assembled together, a butt joint mechanism is arranged between the speed regulating motor body 1 and the heat dissipation box 2, a water-cooling heat dissipation mechanism is arranged on the speed regulating motor body 1 and the heat dissipation box 2, a cooling mechanism for the motor output shaft is arranged on the speed regulating motor body 1;

[0034] The water cooling heat dissipation mechanism comprises an inner tube body 4, a speed regulating motor body 1 and an inner side wall of a heat dissipation box body 2, the inner tube body 4 is fixedly installed on the speed regulating motor body 1 and the heat dissipation box body 2, and the inner tube body 4 is suspendedly installed in cavities of the speed regulating motor body 1 and the heat dissipation box body 2, the inner tube body 4, the speed regulating motor body 1 and the heat dissipation box body 2 form a ring-shaped sealed cavity, a butt joint piece 11 is fixedly installed outside the speed regulating motor body 1, a water flow guide pipe 12 and a threaded sealing plug 13 are threadedly installed in the butt joint piece 11, and a pipeline that is in communication with the speed regulating motor body 1 is arranged on the butt joint piece 11, and the pipeline is in communication with the ring-shaped sealed cavity formed by the inner tube body 4, the speed regulating motor body 1 and the heat dissipation box body 2.

[0035] The number of the butt joint pieces 11 is two, and the butt joint pieces 11 are arranged on upper and lower sides of the speed regulating motor body 1 respectively, the threaded sealing plug 13 seals water inlet holes and water outlet holes on the butt joint pieces 11, the water flow guide pipe 12 is in communication with the water inlet holes and the water outlet holes on the butt joint pieces 11, the speed regulating motor body 1 is fixedly installed with a support leg 3, and the heat dissipation box body 2 is clamped on an extended part of the support leg 3.

[0036] The speed regulating motor body 1 is fixedly installed with a first heat conduction piece 31, and the heat dissipation box body 2 is fixedly installed with a second heat conduction piece 32, the first heat conduction piece 31 and the second heat conduction piece 32 each comprise two horizontal rods and a vertical rod, shorter horizontal rods of the first heat conduction piece 31 and the second heat conduction piece 32 are fixedly installed on the speed regulating motor body 1 and the heat dissipation box body 2, longer horizontal rods of the first heat conduction piece 31 and the second heat conduction piece 32 are fixedly installed on the inner tube body 4 in a penetrating manner, and the vertical rod of the first heat conduction piece 31 and the second heat conduction piece 32 is arranged in a ring-shaped cavity formed by the speed regulating motor body 1, the heat dissipation box body 2 and the inner tube body 4.

[0037] The docking mechanism comprises a second arc-shaped sealing strip 24 and a first arc-shaped sealing strip 21, both of which are arranged between the speed regulating motor body 1 and the heat dissipation box body 2, the second arc-shaped sealing strip 24 is arranged above the two support legs 3, the first arc-shaped sealing strip 21 is arranged below the two support legs 3, both the second arc-shaped sealing strip 24 and the first arc-shaped sealing strip 21 are fixedly installed on the heat dissipation box body 2, mounting grooves 25 are formed in the side walls of the first arc-shaped sealing strip 21 and the second arc-shaped sealing strip 24, bolts 22 are threadedly installed on the first arc-shaped sealing strip 21 and the second arc-shaped sealing strip 24, nuts 29 are pre-fixedly installed on the inner side wall of the speed regulating motor body 1, the bolts 22 pass through the second circular holes 28 formed in the side wall of the speed regulating motor body 1 and are threadedly installed in the nuts 29, the first circular holes 26 formed in the first arc-shaped sealing strip 21 and the second arc-shaped sealing strip 24, and the edges of the speed regulating motor body 1 and the heat dissipation box body 2 are provided with edge fillets, and the annular sealing strips 27 are movably and clampingly installed at the positions where the speed regulating motor body 1 and the heat dissipation box body 2 are attached to each other, and the annular sealing strips 27 are arranged in the second arc-shaped sealing strip 24 and the first arc-shaped sealing strip 21.

[0038] The servo motor 41 is fixedly installed in the inner pipe body 4 in the heat dissipation box body 2, a circular rotating rod 42 is fixedly installed on the output shaft of the servo motor 41, the side wall of the circular rotating rod 42 is fixedly installed with the circumferentially distributed fan blades 43, the side wall of the heat dissipation box body 2 is provided with the air guide groove 45 which is in communication with the inner pipe body 4, and the arc-shaped spraying pipe 44 is fixedly installed on the inner pipe body 4 in the heat dissipation box body 2.

[0039] The cooling mechanism comprises a rectangular fixed frame 51, a rectangular fixing piece 52 is fixedly installed on the rectangular fixed frame 51, a screw 53 is threadedly installed on the rectangular fixing piece 52, the rectangular fixed frame 51 is threadedly fixed on the side wall of the speed regulating motor body 1 through the screw 53, a sealing ring 55 is fixedly installed on the side wall of the rectangular fixed frame 51, the sealing ring 55 is movably and clampingly installed on the speed regulating motor body 1, an anti-friction ring 54 is fixedly installed in the sealing ring 55, the output shaft of the motor rotates in the anti-friction ring 54, a first annular groove 57 is formed in the side wall of the anti-friction ring 54, a second annular groove 58 is formed in the side wall of the sealing ring 55, an annular pipe 56 is fixedly installed in the first annular groove 57 and the second annular groove 58, an L-shaped guide pipe 59 is fixedly installed on the annular pipe 56, and the L-shaped guide pipe 59 is in communication with the annular sealing cavity among the speed regulating motor body 1, the heat dissipation box body 2 and the inner pipe body 4.

[0040] Working principle:

[0041] First step: when the device is in use, twist the threaded sealing plug 13 on the docking piece 11, unscrew the threaded sealing plug 13 from the docking piece 11, remove the threaded sealing plug 13 from the water inlet hole of the upper docking piece 11, open the water outlet hole of the lower docking piece 11, then screw the water flow conduit 12 onto the docking piece 11 to fix the water flow conduit 12, after the water flow conduit 12 is fixed, connect the water flow conduit 12 on the two docking pieces 11 to the water pump and the pressure pump respectively, so that the water flows in the water flow conduit 12, enters the annular sealed cavity formed by the speed regulating motor body 1, the heat sink box 2 and the inner tube body 4 from the upper docking piece 11, moves in the annular sealed cavity, and exits through the lower docking piece 11. Through the movement of the water flow in the annular sealed cavity, the inner tube body 4 is contacted and cooled, ensuring the stable operation of the motor rotor and the cooling effect of the device.

[0042] Second step: a second arc-shaped sealing strip 24 is arranged between the speed regulating motor body 1 and the heat sink box 2 for sealing, ensuring the stability of the connection between the speed regulating motor body 1 and the heat sink box 2. By moving the heat sink box 2, the heat sink box 2 drives the movement of the second arc-shaped sealing strip 24, the second arc-shaped sealing strip 24 is clamped on the side wall of the speed regulating motor body 1, and the first heat conduction piece 31 on the side wall of the speed regulating motor body 1 is clamped in the mounting groove 25, improving the connection stability between the first heat conduction piece 31 and the second arc-shaped sealing strip 24. Then continue to push the heat sink box 2, so that the heat sink box 2 and the speed regulating motor body 1 are tightly attached together, then twist the bolt 22 on the second arc-shaped sealing strip 24 and the first arc-shaped sealing strip 21, so that the bolt 22 moves in the first circular hole 26, then with the rotation of the bolt 22, the bolt 22 will pass through the second circular hole 28 and be screwed into the nut 29 on the inner side wall of the speed regulating motor body 1, realizing the sealing between the speed regulating motor body 1 and the heat sink box 2. The second arc-shaped sealing strip 24 and the first arc-shaped sealing strip 21 are arranged to seal the connection between the speed regulating motor body 1 and the heat sink box 2, ensuring the sealing effect of the sealed cavity between the speed regulating motor body 1, the heat sink box 2 and the inner tube body 4. The mounting groove 25 provided on the second arc-shaped sealing strip 24 can improve the fixing effect of the first arc-shaped sealing strip 21 and the second arc-shaped sealing strip 24, ensuring the fixing effect of the device.

[0043] Third step: the second heat conduction piece 32 and the first heat conduction piece 31 are arranged on the speed regulating motor body 1 and the heat dissipation box body 2 respectively, the contact between the first heat conduction piece 31 and the second heat conduction piece 32 and the inner tube body 4 is realized through the longer cross bars of the first heat conduction piece 31 and the second heat conduction piece 32, the integrity of the first heat conduction piece 31 and the second heat conduction piece 32 and the inner tube body 4 is improved, the heat in the inner tube body 4 can be transmitted outward through the cross bars of the first heat conduction piece 31 and the second heat conduction piece 32, the space between the two cross bars of the first heat conduction piece 31 and the second heat conduction piece 32 can make the water flow move normally in the annular sealing cavity formed by the speed regulating motor body 1, the heat dissipation box body 2 and the inner tube body 4, without affecting the normal movement of the water flow, at the same time, the vertical bars of the first heat conduction piece 31 and the second heat conduction piece 32 can support the speed regulating motor body 1 and the heat dissipation box body 2 and the inner tube body 4, improve the strength of the annular sealing cavity formed by the speed regulating motor body 1, the heat dissipation box body 2 and the inner tube body 4, then the shorter cross bars of the first heat conduction piece 31 can contact with the air, realize the heat exchange between the air and the first heat conduction piece 31, further improve the heat dissipation effect of the first heat conduction piece 31 and the second heat conduction piece 32.

[0044] Fourth step: when the speed regulating motor body 1 and the heat dissipation box body 2 need to be cooled, the rotation of the circular rotating rod 42 is driven by the output shaft of the servo motor 41, so as to drive the rotation of the fan blade 43, the air in the speed regulating motor body 1 and the heat dissipation box body 2 is discharged through the air guide groove 45 by the rotation of the fan blade 43, so as to realize the cooling of the speed regulating motor body 1 and the heat dissipation box body 2, at the same time, the arc-shaped spraying pipe 44 is arranged on the heat dissipation box body 2, the water flow in the annular sealing cavity formed by the speed regulating motor body 1, the heat dissipation box body 2 and the inner tube body 4 enters the arc-shaped spraying pipe 44, and then enters the heat dissipation box 2 in the form of mist through the spray head arranged on the arc-shaped spraying pipe 44, and then the mist is blown away by the rotation of the fan blade 43, so as to cool the speed regulating motor body 1 and the heat dissipation box body 2, at the same time, the movement of the mist in the speed regulating motor body 1 and the heat dissipation box body 2 can also cool the equipment, so as to improve the cooling effect of the equipment.

[0045] Fifth step: the water flow in the annular sealing cavity formed by the speed regulating motor body 1, the heat dissipation box body 2 and the inner tube body 4 can leave through the L-shaped conduit 59, and then enter the annular pipeline 56 through the L-shaped conduit 59, the annular pipeline 56 is arranged between the sealing ring 55 and the anti-friction ring 54, the water flow in the annular pipeline 56 can cool the anti-friction ring 54, the output shaft of the motor rotates in the anti-friction ring 54, the cooling of the anti-friction ring 54 can make the working temperature of the output shaft of the motor more stable, so as to make the output shaft of the motor work more stably.

[0046] Sixth step: the rectangular fixed frame 51 is fixedly installed on the side wall of the sealing ring 55, the existence of the rectangular fixed frame 51, the screw 53 is screwed from the speed regulating motor body 1, the rectangular fixed part 52 is disassembled, the rectangular fixed frame 51 is disassembled after the rectangular fixed part 52 is disassembled, the anti-friction ring 54 in the sealing ring 55 is replaced, and the disassembly convenience of the equipment is improved.

[0047] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the application.

Claims

1. A heat-dissipating variable frequency speed control motor, comprising a speed control motor body (1) and a heat dissipation housing (2), wherein the speed control motor body (1) and the heat dissipation housing (2) can be assembled together, characterized in that, A docking mechanism is provided between the speed-regulating motor body (1) and the heat dissipation box (2), a water-cooling heat dissipation mechanism is provided on the speed-regulating motor body (1) and the heat dissipation box (2), and a cooling mechanism is provided on the speed-regulating motor body (1). The water-cooled heat dissipation mechanism includes an inner tube (4). The inner tube (4) is fixedly installed on the inner side wall of the speed-regulating motor body (1) and the heat dissipation box (2). The inner tube (4) is suspended in the cavity of the speed-regulating motor body (1) and the heat dissipation box (2). The inner tube (4) is combined with the speed-regulating motor body (1) and the heat dissipation box (2) to form an annular sealed cavity. A docking part (11) is fixedly installed on the outside of the speed-regulating motor body (1). A water flow conduit (12) and a threaded sealing plug (13) are installed on the inner thread of the docking part (11). A pipe is provided on the docking part (11) that communicates with the inside of the speed-regulating motor body (1). The pipe connects the inner tube (4) with the annular sealed cavity formed by the speed-regulating motor body (1) and the heat dissipation box (2). There are two docking parts (11), and the docking parts (11) are respectively set on the upper and lower sides of the speed-regulating motor body (1). The threaded sealing plug (13) seals the water inlet and outlet holes on the docking parts (11). The water flow conduit (12) connects the water inlet and outlet holes on the docking parts (11). A support leg (3) is fixedly installed on the lower part of the speed-regulating motor body (1). The heat dissipation box (2) is engaged with the extended part of the support leg (3). A first heat conduction element (31) is fixedly installed on the speed-regulating motor body (1). A second heat conduction element (31) is fixedly installed on the heat dissipation box (2). The heat conduction component (32) consists of two horizontal bars and one vertical bar. The shorter horizontal bar of the first heat conduction component (31) and the second heat conduction component (32) is fixedly installed on the speed-regulating motor body (1) and the heat sink (2). The longer horizontal bar of the first heat conduction component (31) and the second heat conduction component (32) is fixedly installed through the inner tube body (4). The vertical bar of the first heat conduction component (31) and the second heat conduction component (32) is set in the annular cavity formed by the speed-regulating motor body (1), the heat sink body (2) and the inner tube body (4).

2. The heat-dissipating variable frequency speed control motor according to claim 1, characterized in that, The docking mechanism includes a second arc-shaped sealing strip (24) and a first arc-shaped sealing strip (21). The second arc-shaped sealing strip (24) and the first arc-shaped sealing strip (21) are both disposed between the speed-regulating motor body (1) and the heat dissipation box (2). The second arc-shaped sealing strip (24) is disposed above the two support legs (3), and the first arc-shaped sealing strip (21) is disposed below the two support legs (3). The side walls of the first arc-shaped sealing strip (21) and the second arc-shaped sealing strip (24) are provided with mounting grooves (25).

3. A heat-dissipating variable frequency speed control motor according to claim 2, characterized in that, The second arc-shaped sealing strip (24) and the first arc-shaped sealing strip (21) are both fixedly installed on the heat dissipation box (2). Bolts (22) are threaded on the first arc-shaped sealing strip (21) and the second arc-shaped sealing strip (24). Nuts (29) are pre-fixed on the inner side wall of the speed-regulating motor body (1). The bolts (22) pass through the second circular hole (28) opened on the side wall of the speed-regulating motor body (1) and are threaded into the nut (29) through the first circular hole (26) opened on the first arc-shaped sealing strip (21) and the second arc-shaped sealing strip (24).

4. A heat-dissipating variable frequency speed control motor according to claim 3, characterized in that, The edges of the speed-regulating motor body (1) and the heat sink (2) are both provided with rounded corners, and an annular sealing strip (27) is movably engaged at the position where the speed-regulating motor body (1) and the heat sink (2) are attached. The annular sealing strip (27) is located inside the second arc-shaped sealing strip (24) and the first arc-shaped sealing strip (21).

5. A heat-dissipating variable frequency speed control motor according to claim 4, characterized in that, A servo motor (41) is fixedly installed inside the inner tube (4) of the heat dissipation box (2). A circular rotating rod (42) is fixedly installed on the output shaft of the servo motor (41). A fan blade (43) distributed in a circle is fixedly installed on the side wall of the circular rotating rod (42). An air guide groove (45) communicating with the inner tube (4) is opened on the side wall of the heat dissipation box (2). An arc-shaped spray pipe (44) is fixedly installed on the inner tube (4). The arc-shaped spray pipe (44) is set on the inner tube (4) inside the heat dissipation box (2).

6. A heat-dissipating variable frequency speed control motor according to claim 5, characterized in that, The cooling mechanism includes a rectangular fixing frame (51), on which a rectangular fixing member (52) is fixedly installed. A screw (53) is threaded onto the rectangular fixing member (52). The rectangular fixing frame (51) is threaded onto the side wall of the speed regulating motor body (1) by the screw (53). A sealing ring (55) is fixedly installed on the side wall of the rectangular fixing frame (51). The sealing ring (55) is movably engaged on the speed regulating motor body (1).

7. A heat-dissipating variable frequency speed control motor according to claim 6, characterized in that, An anti-friction ring (54) is fixedly installed inside the sealing ring (55), and the output shaft of the motor rotates inside the anti-friction ring (54). A first annular groove (57) is provided on the side wall of the anti-friction ring (54), and a second annular groove (58) is provided on the side wall of the sealing ring (55). An annular pipe (56) is fixedly installed inside the first annular groove (57) and the second annular groove (58). An L-shaped conduit (59) is fixedly installed on the annular pipe (56). The L-shaped conduit (59) is connected to the annular sealing cavity between the speed regulating motor body (1), the heat sink (2), and the inner tube body (4).

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