Heat dissipating motor

Abstract

The application discloses a heat dissipation motor, which comprises a first base, a base body, a second base, an impeller, a rotating assembly and static guide vanes. The rotating assembly can drive the impeller to rotate to generate rotating airflow and make the rotating airflow flow to the static guide vanes. The static guide vanes capture the rotating airflow thrown out from the impeller through the Coanda effect. Through the specific design of the static guide vanes, the rotating airflow flows along the surface of the static guide vanes and is guided to axial airflow, so that the airflow flow resistance and vortex noise are reduced, and the problem that the heat dissipation effect is not ideal due to the great flow interference of the coil assembly on the wind in the heat dissipation mode of introducing the wind to the coil assembly in the prior art is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of motor heat dissipation design, and particularly relates to a heat dissipation motor. BACKGROUND

[0002] The electric motor is the heart of industrial control and the power base of automation industry. The motor is widely used in various fields. When the motor works, it usually needs to work continuously for several days or even months. Heat is generated inside the motor. In order to maintain the normal work of the motor, the motor needs to be cooled to avoid the abnormal work caused by the high temperature inside the motor.

[0003] The existing way of cooling the motor is to introduce air from the air inlet, blow through the internal coil assembly, and then discharge from the air outlet on the side of the lower part. Although this method can remove the heat generated inside the motor to some extent, the heat dissipation effect is not very ideal. SUMMARY

[0004] The present application provides a heat dissipation motor, which aims to solve the problem of the existing technology that the heat dissipation effect is not very ideal by introducing air from the air inlet, blowing through the internal coil assembly, and then discharging from the air outlet on the side of the lower part.

[0005] The present application provides a heat dissipation motor, which comprises a first base, a base body, a second base, an impeller, a rotating assembly, and a stationary vane.

[0006] The first end of the base body is connected with the first base, the second end of the base body is connected with the second base, the stationary vane is arranged on the base body, the rotating assembly is arranged in the base body, the first base is provided with an air inlet, the impeller is arranged at the air inlet of the first base and connected with the rotating assembly, under the drive of the rotating assembly, the impeller can rotate relative to the base body, the first base and the second base,

[0007] When the motor works, the rotating assembly drives the impeller to rotate in the base body to form a rotating air flow and flow to the stationary vane. Under the action of the stationary vane, the rotating air flow is converted into an axial air flow and flows to the base body, thereby removing the heat generated by the rotating assembly.

[0008] Preferably, the base body comprises a first wall, a second wall, a horizontal surface, the first wall and the second wall are connected by a plurality of first ribs, the stationary guide vanes are arranged between the first wall and the second wall and are in contact with the first wall and the second wall respectively, the second wall, the horizontal surface and the second base enclose a closed cavity, the first end of the rotating assembly is connected with the second base, the second end of the rotating assembly is connected with the impeller after penetrating through the horizontal surface, the rotating assembly can rotate in the closed cavity, the first base is provided with a sealing gasket at the contact position of the first base and the impeller, and the sealing gasket is made of ethylene-vinyl acetate copolymer.

[0009] Preferably, the impeller comprises a first mounting surface, a second mounting surface, a mounting seat and a plurality of blades, the first mounting surface is connected with the first base, the first mounting surface is outwardly convex in the middle to form a ventilation opening, the plurality of blades are uniformly arranged on the second mounting surface and connected with the first mounting surface, and the mounting seat is arranged at the center of the first mounting surface and connected with the second end of the rotating assembly.

[0010] Preferably, the second wall is provided with a plurality of second ribs, and the second ribs are arranged at equal intervals on the second wall.

[0011] Preferably, one end of the second wall close to the second base is arranged as an inclined slope, and the distance between the inclined slope and the first wall gradually increases along the direction of the airflow.

[0012] Preferably, the rotating assembly comprises a rotor, a stator, a rotating shaft, a first bearing and a second bearing, the first bearing is arranged on the horizontal surface, the second bearing is arranged on the second base, the first end of the rotating shaft is connected with the second bearing, the second end of the rotating shaft is connected with the second bearing, the second end of the rotating shaft is also connected with the impeller after penetrating through the horizontal surface, the stator is arranged on the inner side of the second wall, and the rotor is arranged in the middle of the rotating shaft.

[0013] Preferably, the stationary guide vanes comprise a circular ring column and a plurality of guide vanes, the circular ring column is sleeved on the second wall, the guide vanes are arranged at equal intervals and at a set angle on the surface of the circular ring column, and the guide vanes are also in contact with the first wall, wherein the airflow channels are formed between adjacent guide vanes.

[0014] Preferably, the plurality of guide vanes are arranged one by one corresponding to the plurality of first ribs, and one end of the guide vanes close to the corresponding first ribs is in a straight line with the first ribs.

[0015] Preferably, the guide vanes are circular arcs, and the guide vanes are arranged at a set angle and inclined along the direction of the incoming airflow.

[0016] Preferably, the circular column body is provided with a clamping piece, and the second wall surface is provided with a clamping groove, and when the circular column body is sleeved on the second wall surface, the clamping piece is clamped with the clamping groove.

[0017] The heat dissipation motor of the application comprises a first base, a base body, a second base, an impeller, a rotating assembly, and a static guide vane. The rotating assembly can drive the impeller to rotate to generate rotating airflow and flow to the static guide vane. The static guide vane captures the rotating airflow from the impeller through the Coanda effect. Through the specific design of the static guide vane itself, the rotating airflow flows along the surface of the static guide vane and is guided to axial airflow, thereby reducing airflow flow resistance and vortex noise. The problem of the prior art that the coil assembly can cause great flow interference to the wind and easily lead to great noise when the heat dissipation mode of the wind introduced to the coil assembly is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The cross section of the heat dissipation motor in an embodiment Figure 1 ;

[0019] Figure 2 The cross section of the heat dissipation motor in an embodiment Figure 2 ;

[0020] Figure 3 The bottom view of the heat dissipation motor in an embodiment

[0021] Figure 4 The impeller structure schematic diagram of the heat dissipation motor in an embodiment

[0022] Figure 5 The static guide vane structure schematic diagram of the heat dissipation motor in an embodiment

[0023] 1, first base; 11, sealing gasket; 2, base body; 21, first wall surface; 22, second wall surface; 23, horizontal surface; 24, first rib plate; 25, second rib plate; 3, second base; 4, impeller; 41, first mounting surface; 42, second mounting surface; 43, mounting seat; 44, fan blade; 5, rotating assembly; 51, rotor; 52, stator; 53, rotating shaft; 54, first bearing; 55, second bearing; 6, static guide vane; 61, circular column body; 62, flow guide piece; 63, clamping piece.

[0024] The implementation, functional features and advantages of the application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0025] It should be understood that the specific embodiments described herein are merely intended to explain the application and are not intended to limit the application.

[0026] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0027] With reference to Figure 1 The present application provides a heat dissipation motor, comprising: a first base 1, a base body 2, a second base 3, an impeller 4, a rotating assembly 5, a static guide vane 6.

[0028] The first end of the base body 2 is connected with the first base 1, and the second end of the base body 2 is connected with the second base 3. The base body 2 is an aluminum body. The aluminum base body 2 can better conduct heat and can conduct the heat generated by the rotating assembly 5 out. The static guide vane 6 is arranged on the base body 2, and the rotating assembly 5 is arranged in the base body 2. The first base 1 is provided with an air inlet, and the impeller 4 is arranged at the air inlet of the first base 1 and is connected with the rotating assembly 5. Under the drive of the rotating assembly 5, the impeller 4 can rotate relative to the base body 2, the first base 1 and the second base 3.

[0029] When the motor works, the rotating assembly 5 drives the impeller 4 to rotate in the base body 2 to form a rotating airflow and flow to the static guide vane 6. Under the action of the static guide vane 6, the rotating airflow is converted into an axial airflow and flows to the base body 2, thereby taking away the heat generated by the rotating assembly 5.

[0030] As described above, the heat dissipation motor claimed in the present application comprises: a first base 1, a base body 2, a second base 3, an impeller 4, a rotating assembly 5 and a static guide vane 6. The first base 1 is a hollow convex shape, and the middle of the first base 1 is provided with an air inlet. The impeller 4 is also roughly convex in shape. When installed, the protruding part of the impeller 4 extends into the protruding part of the first base 1, and a sealing gasket 11 is arranged at the contact part of the two. The sealing gasket 11 comprises ethylene-vinyl acetate copolymer (EVA). The impeller 4 is made of aluminum alloy, which can maintain a certain rigidity and is relatively light, so as not to increase the load of the motor. In the case of high speed of the rotating assembly 5 of the motor, the upper end of the impeller 4 will be sharp like a knife, which will cut part of the EVA, so as to achieve the effect of complete adhesion and good sealing effect.

[0031] The first base 1, the base body 2 and the second base 3 are assembled to form a housing of the motor, wherein the base body 2 comprises a first wall surface 21, a second wall surface 22 and a horizontal surface 23, the second wall surface 22, the horizontal surface 23 and the second base 3 are connected to form a closed cavity, the main body of the rotating assembly 5 is arranged in the closed cavity, one end of the rotating shaft 53 of the rotating assembly 5 is connected with the second base 3, and the other end of the rotating shaft 53 is connected with the impeller 4 after penetrating through the horizontal surface 23, the rotating assembly 5 rotates to drive the impeller 4 to rotate to form a rotating airflow and flow to the static guide vane 6, the static guide vane 6 is tightly clamped between the first wall surface 21 and the second wall surface 22 and cannot rotate under the influence of the airflow generated by the impeller 4, a plurality of guide vanes 62 are uniformly arranged in the static guide vane 6, the rotating airflow generated by the impeller 4 can be converted into an axial airflow, and the axial airflow is guided to flow from the second wall surface 22 along the guide vanes 62, so that the airflow is prevented from entering the coil assembly part in the prior art, the airflow interference caused by the complex arrangement of the coil assembly is reduced, the heat generated by the rotation of the rotating assembly 5 is taken away at the same time, and the noise can also be reduced.

[0032] With reference to Figure 2 and Figure 3 In one embodiment, the base body 2 comprises a first wall surface 21, a second wall surface 22 and a horizontal surface 23, the first wall surface 21 and the second wall surface 22 are connected through a plurality of first rib plates 24, the static guide vane 6 is arranged between the first wall surface 21 and the second wall surface 22 and respectively contacts the first wall surface 21 and the second wall surface 22, the second wall surface 22, the horizontal surface 23 and the second base 3 enclose a closed cavity, a first end of the rotating assembly 5 is connected with the second base 3, a second end of the rotating assembly 5 is connected with the impeller 4 after penetrating through the horizontal surface 23, the rotating assembly 5 can rotate in the closed cavity, a sealing gasket 11 is arranged at the contact position of the first base 1 and the impeller 4, and the sealing gasket 11 is made of ethylene-vinyl acetate copolymer.

[0033] As described above, the second wall surface 22, the horizontal surface 23 and the second base 3 form a closed cavity, the airflow cannot pass through the second wall surface 22 and the horizontal surface 23 to flow into the closed cavity, the main body of the rotating assembly 5 is arranged in the closed cavity, the first rib plate 24 is arranged at the end close to the second base 3, the static guide vane 6 is sleeved at the end of the second wall surface 22 close to the impeller 4, and further, in order to ensure the sealing performance of the contact between the first base 1 and the impeller 4, a sealing gasket 11 is arranged between the contact positions of the first base 1 and the impeller 4, the sealing gasket 11 can prevent the airflow from flowing from the air inlet to the static guide vane 6, then reversely passing through the gap between the first base 1 and the impeller 4 and flowing out from the air inlet, the sealing gasket 11 is preferably made of ethylene-vinyl acetate copolymer which is wear-resistant and fold-resistant, can reduce wear, the first rib plate 24 is arranged in multiple and uniformly distributed on the outer surface of the second wall surface 22, and the static guide vane 6 is tightly clamped between the first wall surface 21 and the second wall surface 22 and cannot be deviated or rotated under the influence of the airflow.

[0034] Referring to Figure 4 In one embodiment, the impeller 4 comprises a first mounting surface 41, a second mounting surface 42, a mounting seat 43 and a plurality of fan blades 44, the first mounting surface 41 is connected with the first base 1, the middle part of the first mounting surface 41 outwardly protrudes to form an air inlet, the plurality of fan blades 44 are uniformly arranged on the second mounting surface 42 and connected with the first mounting surface 41, and the mounting seat 43 is arranged at the center of the first mounting surface 41 and connected with the second end of the rotating assembly 5.

[0035] As described above, the impeller 4 has a generally convex shape, comprising a first mounting surface 41, a second mounting surface 42, a mounting seat 43 and a plurality of fan blades 44, the middle part of the first mounting surface 41 outwardly protrudes to form an air inlet, the outwardly protruding part of the middle part of the first mounting surface 41 is in contact with the protruding part of the first base 1, and further, a sealing gasket 11 is arranged between the two parts to improve the sealing effect, so that the incoming airflow can only flow into the static guide vane 6 between the adjacent fan blades 44, the plurality of fan blades 44 are uniformly arranged on the second mounting surface 42 around the air inlet and in contact with the first mounting surface 41.

[0036] In one embodiment, the second wall surface 22 is provided with a plurality of second rib plates 25, and the second rib plates 25 are arranged at equal intervals on the second wall surface 22.

[0037] As described above, the second wall surface 22 is provided with a plurality of second ribs 25 at the end close to the second base 3, the second ribs 25 are arranged uniformly around the second wall surface 22, the second ribs 25 are arranged between two adjacent first ribs 24, further, the number of the second ribs 25 is several times of the number of the first ribs 24, because the second wall surface 22 is made of aluminum, increasing the number of the second ribs 25 can guide the heat out, increase the contact area of the second ribs 25 with the axial airflow, and improve the heat dissipation efficiency, it should be noted that the number of the second ribs 25 should not be too much, so as to avoid increasing the flow resistance of the airflow.

[0038] In one embodiment, the second wall surface 22 is provided with an inclined slope at the end close to the second base 3, along the direction of the airflow, the distance between the inclined slope and the first wall surface 21 gradually increases.

[0039] As described above, the second wall surface 22 is provided with an inclined slope at the end close to the second base 3, the inclined flow guide structure can accelerate the airflow to guide the second ribs 25, and improve the heat conduction efficiency.

[0040] Referring to Figure 2 In one embodiment, the rotating assembly 5 includes a rotor 51, a stator 52, a rotating shaft 53, a first bearing 54 and a second bearing 55, the first bearing 54 is arranged on the horizontal surface 23, the second bearing 55 is arranged on the second base 3, the first end of the rotating shaft 53 is connected with the second bearing 55, the second end of the rotating shaft 53 is connected with the second bearing 55, the second end of the rotating shaft 53 also passes through the horizontal surface 23 and is connected with the impeller 4, the stator 52 is arranged on the inner side of the second wall surface 22, and the rotor 51 is arranged in the middle part of the rotating shaft 53.

[0041] As described above, the horizontal surface 23 is provided with a mounting groove, the first bearing 54 is arranged in the mounting groove, the second bearing 55 is arranged on the second base 3, the bearing can reduce the resistance when the rotating shaft 53 rotates, the first end of the rotating shaft 53 is connected with the second bearing 55, the second end of the rotating shaft 53 is connected with the second bearing 55 and extends close to the impeller 4, the mounting seat 43 of the impeller 4 is sleeved on the second end extension, the stator 52 is arranged on the inner side of the second wall surface 22, the rotor 51 is arranged in the middle part of the rotating shaft 53 corresponding to the stator 52, and the rotating shaft 53 can rotate under the mutual rotation of the stator 52 and the rotor 51 when electrified.

[0042] Referring to Figure 5In one embodiment, the static guide vane 6 comprises a circular ring cylinder 61 and a plurality of guide vanes 62, the circular ring cylinder 61 is sleeved on the second wall surface 22, the guide vanes 62 are arranged on the surface of the circular ring cylinder 61 at equal intervals and at a set angle, and the guide vanes 62 also contact the first wall surface 21, wherein the airflow passages are formed between adjacent guide vanes 62.

[0043] As described above, the plurality of guide vanes 62 uniformly surround the second wall surface 22 respectively, wherein the guide vanes 62 have a certain angle deviation in the vertical direction with the circular ring cylinder 61, and the angle deviation can make the guide vanes 62 better cater to the airflow flowing out of the impeller 4 and be divided, preferably, the range of the angle deviation is between 30°-60°, and the total thickness of the circular ring cylinder 61 and the guide vanes 62 should be the same as the distance from the second wall surface 22 to the first wall surface 21, so that the static guide vane 6 can be tightly clamped between the first wall surface 21 and the second wall surface 22, and will not be affected by the airflow to rotate.

[0044] In one embodiment, the plurality of guide vanes 62 are arranged one by one corresponding to the plurality of first rib plates 24, and the end of the guide vane 62 close to the corresponding first rib plate 24 is in a straight line with the first rib plate 24.

[0045] In one embodiment, the guide vane 62 is in a circular arc shape, and the guide vane 62 is arranged at a set angle in the direction of the incoming airflow.

[0046] As described above, the end of the guide vane 62 close to the corresponding first rib plate 24 is in a straight line with the first rib plate 24, that is, each guide vane 62 will butt joint a first rib plate 24, further, the guide vane 62 is arranged in a circular arc shape, and the guide vane 62 is arranged at an angle in the direction of the incoming airflow, preferably, the inclination angle of the guide vane 62 with the circular ring cylinder 61 in the vertical direction is between 30°-60°, and the end of the guide vane 62 close to the corresponding first rib plate 24 is in a straight line with the first rib plate 24, so that the airflow flowing out of the guide vane 62 can flow through the first rib plate 24 without impact, forming uniform axial airflow, and the butt joint of the guide vane 62 and the first rib plate 24 is equivalent to lengthening the rectification interval of the airflow flowing along the second wall surface 22, so that the discharged airflow can flow out uniformly in the axial direction. At the same time, after the guide vane 62 is butt jointed with the first rib plate 24, the airflow directly flows through the surface of the first rib plate 24, which can carry away the heat of the first rib plate 24, and can improve the heat dissipation effect of the first rib plate 24.

[0047] In one embodiment, the circular ring cylinder 61 is provided with a clamping piece 63, and the second wall surface 22 is provided with a clamping groove, and when the circular ring cylinder 61 is sleeved on the second wall surface 22, the clamping piece 63 is clamped with the clamping groove.

[0048] As described above, the circular column body 61 is provided with a clamping piece 63, and the clamping piece 63 can be provided in multiple numbers. The circular column body 61 is also provided with a corresponding clamping groove, and the clamping piece 63 can form a clamping structure with the clamping groove, so as to avoid the static guide vane 6 from being deviated due to the influence of the airflow.

[0049] In summary, the heat dissipation motor provided by the application comprises a first base, a base body, a second base, an impeller, a rotating assembly and a static guide vane. The rotating assembly can drive the impeller to rotate to generate rotating airflow and make the rotating airflow flow to the static guide vane. The static guide vane captures the rotating airflow thrown out from the impeller through the Coanda effect. Through the specific design of the static guide vane itself, the rotating airflow flows along the surface of the static guide vane and is guided to axial airflow, so as to reduce the airflow flow resistance and vortex noise. The problem that a large noise is easily caused due to the large flow interference of the coil assembly on the airflow in the heat dissipation mode of guiding the airflow to the coil assembly in the prior art is solved.

[0050] It should be noted that all the directionality indications (such as up, down, left, right, front, back) in the embodiments of the application are only used to explain the relative position relationship, movement condition and the like between components in a certain specific posture (as shown in the drawings), and if the specific posture changes, the directionality indications also change accordingly. The connection can be direct connection or indirect connection.

[0051] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the realization of ordinary skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0052] The above description is only the preferred embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation based on the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A heat dissipation motor, characterized in that: include: A first base, a base body, a second base, an impeller, a rotating assembly, and a static guide vane; The first end of the base body is connected to the first base, the second end of the base body is connected to the second base, the static guide vane is arranged on the base body, the rotating assembly is arranged in the base body, the first base is provided with an air inlet, the impeller is arranged at the air inlet of the first base and is connected to the rotating assembly, and under the drive of the rotating assembly, the impeller can rotate relative to the base body, the first base and the second base. When the motor is working, the rotating assembly drives the impeller to rotate in the base body to form a rotating airflow and flow toward the static guide vanes. Under the action of the static guide vanes, the rotating airflow is converted into an axial airflow and flows toward the base body, thereby removing the heat generated by the rotating assembly. The base body includes a first wall surface, a second wall surface, and a transverse surface. The first wall surface and the second wall surface are connected by a plurality of first ribs. The static guide vane is arranged between the first wall surface and the second wall surface and contacts the first wall surface and the second wall surface respectively. The second wall surface, the transverse surface, and the second base together form a closed cavity. The first end of the rotating assembly is connected to the second base. The second end of the rotating assembly passes through the transverse surface and is connected to the impeller. The rotating assembly can rotate in the closed cavity. The impeller includes a first mounting surface, a second mounting surface, a mounting seat, and a plurality of blades, wherein the first mounting surface is connected to the first base, the middle portion of the first mounting surface protrudes outward to form a vent, and the protruding portion of the middle portion of the first mounting surface contacts the protruding portion of the first base, a sealing gasket is provided at the contact point between the first base and the impeller, and the sealing gasket is ethylene-vinyl acetate copolymer, the plurality of blades are evenly arranged on the second mounting surface around the vent and connected to the first mounting surface, the mounting seat is provided at the center of the first mounting surface and connected to the second end of the rotating assembly, wherein, when the rotating assembly rotates at a high speed, the upper end of the impeller will cut a portion of the sealing gasket; The second wall surface is provided with a plurality of second ribs, which are arranged on the second wall surface at equal intervals and between two adjacent first ribs, and the number of the second ribs is several times the number of the first ribs.

2. The heat dissipation motor according to claim 1, characterized in that: An end of the second wall surface close to the second base is configured as an inclined surface, and a distance between the inclined surface and the first wall surface gradually increases along the direction of airflow.

3. The heat dissipation motor according to claim 1, characterized in that The rotating assembly includes a rotor, a stator, a rotating shaft, a first bearing and a second bearing. The first bearing is arranged on the transverse surface, the second bearing is arranged on the second base, the first end of the rotating shaft is connected to the second bearing, the second end of the rotating shaft is connected to the second bearing, and the second end of the rotating shaft also passes through the transverse surface to be connected to the impeller. The stator is arranged on the inner side of the second wall surface, and the rotor is arranged in the middle of the rotating shaft.

4. The heat dissipation motor according to claim 1, characterized in that The static guide vane includes a circular cylinder and a plurality of guide vanes. The circular cylinder is sleeved on the second wall surface. The guide vanes are arranged at equal intervals and at set angles on the surface of the circular cylinder. The guide vanes are also in contact with the first wall surface, wherein air flow channels are formed between adjacent guide vanes.

5. The heat dissipating motor according to claim 4, characterized in that: The plurality of guide plates are arranged in a one-to-one correspondence with the plurality of first ribs, and one end of the guide plate close to the corresponding first rib is in the same straight line as the first rib.

6. The heat dissipating motor according to claim 4, characterized in that: The guide plate is in an arc shape and is tilted at a set angle along the direction of incoming airflow.

7. The heat dissipating motor according to claim 4, characterized in that: The annular cylinder is provided with a clamping piece, and the second wall surface is provided with a clamping groove. When the annular cylinder is sleeved on the second wall surface, the clamping piece is clamped with the clamping groove.

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