Shell heat dissipation structure of high slip rate motor

Abstract

The utility model discloses a housing heat radiation structure of a high slip rate motor, comprising a cylindrical main housing, the main housing comprises an inner sleeve body and an outer sleeve body; a spiral liquid guide channel is formed between the inner sleeve body and the outer sleeve body; a long protruding part extending in the axial direction is formed on the outer side wall of one side wall of the outer sleeve body, a liquid inlet threaded connection through hole and a liquid outlet threaded connection hole are formed in the outer side wall of the long protruding part, the liquid inlet threaded connection through hole is communicated with the upper portion of the liquid guide channel, and the liquid outlet threaded connection hole is communicated with the lower portion of the liquid guide channel. The spiral liquid guide channel is adopted as a cooling channel, the main shell is formed by splicing the inner sleeve body and the outer sleeve body, only the liquid guide groove needs to be formed in the inner side wall of the outer sleeve body, and the shell is convenient to machine and install, high in machining speed and good in effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor equipment technical field more specifically, and more specifically relates to a casing heat dissipation structure of high slip motor. BACKGROUND

[0002] High slip motor is a special type of asynchronous motor, and the rotor resistance is large, so that the motor runs and the stall degree is large, so it is also called "stall motor". Compared with the ordinary asynchronous motor, high slip motor has the characteristics of large output torque, good starting, fast response speed, and can usually realize higher efficiency.

[0003] The working principle of high slip motor is that when the motor is powered on, torque is generated through electromagnetic induction, so that the rotor starts to rotate. But with the increase of speed, due to the damping effect of the rotor, the rotor will gradually lose synchronization with the rotor magnetic field, resulting in the occurrence of stall phenomenon. At this time, the rotor will rotate at a lower speed, but at the same time, it will also produce greater output torque.

[0004] Because the speed of high slip motor is usually above 10,000 rpm, even up to 50,000 rpm or higher. Due to its high speed characteristics, the heat dissipation mode of high slip motor is more complex and efficient: often need to use liquid cooling, and the existing liquid cooling shell is generally formed with a plurality of heat dissipation holes extending from the upper end to the lower end on the upper end face of the side plate of the shell, and the upper end cover and the lower end cover form a continuous heat dissipation pipeline. It needs to process a plurality of heat dissipation holes from the top end face to the bottom end face of the side plate of the shell, which needs to be processed several times. Because the axial length of the shell is long, it takes a long time to process one heat dissipation hole, which makes the processing troublesome and low in efficiency. UTILITY MODEL CONTENTS

[0005] The utility model discloses a casing heat dissipation structure of high slip motor, it adopts the helical liquid guide channel as the cooling channel, and the main casing adopts the splicing of inner sleeve body and outer sleeve body, and it only needs to form the liquid guide groove on the inner side wall of the outer sleeve body, which is convenient to process, easy to install, fast in processing speed and good in effect.

[0006] The utility model discloses a casing heat dissipation structure of high slip motor, it adopts the helical liquid guide channel as the cooling channel, and the main casing adopts the splicing of inner sleeve body and outer sleeve body, and it only needs to form the liquid guide groove on the inner side wall of the outer sleeve body, which is convenient to process, easy to install, fast in processing speed and good in effect.

[0007] A casing heat dissipation structure of high slip motor, comprising a cylindrical main casing, the main casing comprises an inner sleeve body and an outer sleeve body;

[0008] The helical liquid guide channel is formed between the inner sleeve body and the outer sleeve body;

[0009] The outer side wall of one of the side walls of the outer sleeve body is formed with an axially extending elongated protruding part, the outer side wall of the elongated protruding part is formed with an inlet liquid screw joint through hole and an outlet liquid screw joint through hole, the inlet liquid screw joint through hole communicates with the upper part of the liquid guide channel, and the outlet liquid screw joint through hole communicates with the lower part of the liquid guide channel.

[0010] The inner sleeve body is inserted into the outer sleeve body, the inner side wall of the outer sleeve body is formed with an inner helically coiled liquid guide groove, the inner side wall of the outer sleeve body is tightly attached to the inner side wall of the inner sleeve body, and the liquid guide groove of the outer sleeve body and the outer side wall of the inner sleeve body form the liquid guide channel.

[0011] The top end outer side wall of the inner sleeve body is formed with a top outer radial extension edge, and the inner side of the bottom end of the outer sleeve body is formed with a bottom inner radial extension edge;

[0012] The bottom surface of the top outer radial extension edge is pressed against the top end surface of the outer sleeve body, and the top surface of the bottom inner radial extension edge is pressed against the bottom end surface of the inner sleeve body.

[0013] The front end outer side wall of the elongated protruding part is formed with an upward extending inlet liquid screw joint through hole, the upper end of the inlet liquid screw joint through hole extends out of the inner wall surface of the outer sleeve body and communicates with the liquid guide channel, the inner side wall of the rear end of the elongated protruding part is formed with a rear outlet liquid hole, the inside of the elongated protruding part is formed with an axially extending connecting hole, the rear end of the connecting hole communicates with the rear outlet liquid hole, and the outer side wall of the front end of the elongated protruding part is formed with an upward extending outlet liquid screw joint through hole, the outlet liquid screw joint through hole communicates with the front end of the connecting hole.

[0014] The prominent effect of the utility model is:

[0015] Compared with the prior art, it adopts a helical liquid guide channel as a cooling channel, the main shell is formed by splicing an inner sleeve body and an outer sleeve body, and it only needs to form a liquid guide groove on the inner side wall of the outer sleeve body once, so that the processing is convenient, the installation is convenient, the processing speed is fast, and the effect is good. ACCURACY OF DRAWINGS:

[0016] Figure 1 It is a partial sectional view of the utility model;

[0017] Figure 2 It is a partial sectional view between the inner sleeve body and the outer sleeve body;

[0018] Figure 3 It is a partial sectional view of another fixing mode between the inner sleeve body and the outer sleeve body;

[0019] Figure 4 It is a partial structural schematic view of the main shell of the utility model;

[0020] Figure 5 It is a partial top view of the lower connecting leg. DETAILED DESCRIPTION

[0021] As shown in Figures 1 to 5 A shell heat dissipation structure of a high slip motor includes a cylindrical main shell 10, which includes an inner sleeve body 11 and an outer sleeve body 12.

[0022] A spiral liquid guide channel 13 is formed between the inner sleeve body 11 and the outer sleeve body 12.

[0023] An axially extending elongated protruding portion 121 is formed on the outer side wall of one side wall of the outer sleeve body 12, and an inlet liquid screw connection hole 122 and an outlet liquid screw connection hole 123 are formed on the outer side wall of the elongated protruding portion 121. The inlet liquid screw connection hole 122 is communicated with the upper part of the liquid guide channel 13, and the outlet liquid screw connection hole 123 is communicated with the lower part of the liquid guide channel 13.

[0024] Further, the inner sleeve body 11 is inserted into the outer sleeve body 12, and an inner spiral winding liquid guide groove is formed on the inner side wall of the outer sleeve body 12. The liquid guide groove is the thread groove of the internal thread formed on the inner side wall of the outer sleeve body 12. The internal thread can be machined on the inner side wall of the outer sleeve body 12 by a lathe, which is convenient to process (of course, other processing methods can also be used, such as directly forming the internal thread on the outer sleeve body 12 by casting, and of course, the internal thread needs to be polished and deburred after casting, and other processing methods are not described here).

[0025] The inner side wall of the outer sleeve body 12 tightly abuts against the inner side wall of the inner sleeve body 11, and the liquid guide groove of the outer sleeve body 12 and the outer side wall of the inner sleeve body 11 form the liquid guide channel 13.

[0026] An outer top radial extension edge 111 is formed on the top end outer side wall of the inner sleeve body 11, and an inner bottom radial extension edge 124 is formed on the bottom end inner side wall of the outer sleeve body 12.

[0027] The bottom surface of the outer top radial extension edge 111 is pressed against the top end surface of the outer sleeve body 12, and the top surface of the inner bottom radial extension edge 124 is pressed against the bottom end surface of the inner sleeve body 11.

[0028] As shown in Figure 2 The bottom surface of the outer top radial extension edge 111 is welded and fixed to the top end surface of the outer sleeve body 12, and the top surface of the inner bottom radial extension edge 124 is welded and fixed to the bottom end surface of the inner sleeve body 11.

[0029] As shown in Figure 3As shown, it is another connection mode, the top of the outer diameter of the extension edge 111 of the bottom surface and the top end surface of the outer sleeve body 12 between the clamping ring and fixed connection through a plurality of bolts, the top of the inner diameter of the extension edge 124 of the bottom surface and the bottom end surface of the inner sleeve body 11 between the clamping ring and fixed connection through a plurality of bolts.

[0030] This kind of connection mode, can be separated by disassembling the bolt, namely the inner sleeve body 11 and the outer sleeve body 12 are separated, convenient for its later maintenance, such as solid material blockage in the liquid channel 13 etc. When the problem occurs, the inner sleeve body 11 and the outer sleeve body 12 can be separated, and can be cleaned, which is very convenient.

[0031] Further, the front end of the outer side wall of the elongated protruding portion 121 is formed with an upward extending liquid inlet threaded hole 122, the upper end of the liquid inlet threaded hole 122 extends out of the inner wall surface of the outer sleeve body 12 and communicates with the liquid channel 13, the inner side wall of the rear end of the elongated protruding portion 121 is formed with a rear liquid outlet hole 125, the inside of the elongated protruding portion 121 is formed with an axis extending connecting hole 126, the rear end of the connecting hole 126 communicates with the rear liquid outlet hole 125, the outer side wall of the front end of the elongated protruding portion 121 is formed with an upward extending liquid outlet threaded hole 123, the liquid outlet threaded hole 123 communicates with the front end of the connecting hole 126.

[0032] The outer side wall of the outer sleeve body 12 is formed with a plurality of axially extending reinforcing heat dissipation protruding portions 127.

[0033] The bottom surface of the outer sleeve body 12 is formed with an axially extending connecting protruding portion 128 on the left and right parts, the upper part of the two lower connecting legs 30 is fixedly connected on the bottom surface of the corresponding connecting protruding portion 128 by bolts.

[0034] The lower connecting leg 30 comprises a bottom fixed plate 31, the top surface of the bottom fixed plate 31 is welded and fixed with an upward extending reinforcing rib plate 32 on the front, middle and rear parts, an upper connecting plate 33 is welded and fixed on the top surface of all the reinforcing rib plates 32, the top surface of the upper connecting plate 33 is pressed against the bottom surface of the corresponding connecting protruding portion 128 and is fixedly connected by a plurality of bolts.

[0035] A connecting reinforcing plate 34 is welded and fixed between every two adjacent reinforcing rib plates 32, the bottom surface of the connecting reinforcing plate 34 is welded and fixed on the bottom fixed plate 31, a plurality of connecting through holes are formed on the bottom fixed plate 31.

[0036] The lower connecting leg 30 of the embodiment is a detachable structure, so that when the main shell 10 does not need to be connected by the lower connecting leg 30, the lower connecting leg 30 can be detached, which is very convenient.

[0037] Finally, it should be pointed out that the above embodiments are only more representative examples of the present application. Obviously, the present application is not limited to the above embodiments, but can have many variations. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments shall be considered to fall within the protection scope of the present application.

Claims

1. A housing cooling structure for a high slip motor including a cylindrical main housing (10), characterized by: The main housing (10) includes an inner sleeve (11) and an outer sleeve (12); A spiral liquid guiding channel (13) is formed between the inner sleeve (11) and the outer sleeve (12); An axially extending elongated protrusion (121) is formed on the outer side wall of one side wall of the outer sleeve body (12). An inlet screw connection hole (122) and an outlet screw connection hole (123) are formed on the outer side wall of the elongated protrusion (121). The inlet screw connection hole (122) communicates with the upper part of the liquid guiding channel (13), and the outlet screw connection hole (123) communicates with the lower part of the liquid guiding channel (13).

2. A housing heat dissipation structure for a high-derating motor according to claim 1, characterized by: The inner sleeve (11) is inserted into the outer sleeve (12). The inner sidewall of the outer sleeve (12) is formed with an inner spirally coiled liquid guiding groove. The inner sidewall of the outer sleeve (12) is in close contact with the inner sidewall of the inner sleeve (11). A liquid guiding channel (13) is formed between the liquid guiding groove of the outer sleeve (12) and the outer sidewall of the inner sleeve (11).

3. A housing cooling structure for a high-derating motor according to claim 2, characterized in that: The inner sleeve (11) has a top outer radial extension edge (111) formed on the outer side wall of the top end, and the outer sleeve (12) has a bottom inner radial extension edge (124) formed on the inner side of the bottom end. The bottom surface of the top outer radial extension edge (111) presses against the top surface of the outer sleeve body (12), and the top surface of the bottom inner radial extension edge (124) presses against the bottom surface of the inner sleeve body (11).

4. A housing cooling structure for a high-deration motor according to claim 3, characterized in that: The bottom surface of the top outer radial extension edge (111) is welded and fixed to the top surface of the outer sleeve body (12), and the top surface of the bottom inner radial extension edge (124) is welded and fixed to the bottom surface of the inner sleeve body (11).

5. A housing cooling structure for a high-deration motor according to claim 3, characterized in that: A sealing ring is held between the bottom surface of the top outer radial extension edge (111) and the top surface of the outer sleeve (12) and fixedly connected by multiple bolts. A sealing ring is held between the top surface of the bottom inner radial extension edge (124) and the bottom surface of the inner sleeve (11) and fixedly connected by multiple bolts.

6. A housing cooling structure for a high-deration motor according to claim 1, characterized in that: The elongated protrusion (121) has an upwardly extending liquid inlet screw hole (122) formed on the outer side wall of its front end. The upper end of the liquid inlet screw hole (122) extends out of the inner wall of the outer sleeve (12) and communicates with the liquid guiding channel (13). The rear end of the elongated protrusion (121) has a rear liquid outlet hole (125) formed on the inner side wall of its rear end. The elongated protrusion (121) has an axially extending connecting hole (126) formed inside. The rear end of the connecting hole (126) communicates with the rear liquid outlet hole (125). The front end of the elongated protrusion (121) has an upwardly extending liquid outlet screw hole (123) formed on the outer side wall of its front end. The liquid outlet screw hole (123) communicates with the front end of the connecting hole (126).

7. A housing cooling structure for a high-deration motor according to claim 1, characterized in that: The outer wall of the outer sleeve body (12) is formed with a plurality of axially extending heat dissipation-enhancing protrusions (127).

8. A housing cooling structure for a high-deration motor according to claim 1, characterized by: The bottom surface of the outer sleeve body (12) is formed with axially extending connecting protrusions (128) on the left and right sides. The upper parts of the two lower connecting legs (30) are fixedly connected to the bottom surface of the corresponding connecting protrusions (128) by bolts.

9. A housing cooling structure for a high-deration motor according to claim 8, wherein: The lower connecting leg (30) comprises a bottom fixed plate (31), the top surface of the bottom fixed plate (31) is welded and fixed with upwardly extending reinforcing rib plates (32) at the front, middle and rear portions, and an upper connecting plate (33) is welded and fixed on the top surface of all the reinforcing rib plates (32), the top surface of the upper connecting plate (33) is pressed against the bottom surface of the corresponding connecting convex portion (128) and is fixedly connected through a plurality of bolts.

10. A housing cooling structure for a high-deration motor according to claim 9, wherein: A connecting reinforcing plate (34) is welded and fixed between every two adjacent reinforcing rib plates (32), the bottom surface of the connecting reinforcing plate (34) is welded and fixed on the bottom fixed plate (31), and a plurality of connecting through holes are formed on the bottom fixed plate (31).

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