Cooling type motor of refrigeration compressor

Abstract

The utility model discloses a heat dissipation type motor of a refrigeration compressor, which comprises a shell, and a stator and a rotor are arranged in the shell. An inner shell is arranged in the outer shell; a plurality of heat dissipation fins are arranged between the outer shell and the inner shell, and heat dissipation flow channels are formed among the heat dissipation fins; end covers are arranged at the two ends of the shell respectively, heat dissipation holes are formed in the first end cover and communicated with the heat dissipation flow channel, a heat dissipation cover is further arranged on the outer side of the second end cover, a heat dissipation cavity is formed in the heat dissipation cover, and the heat dissipation flow channel is further communicated with the heat dissipation cavity. And blades are arranged in the heat dissipation cavity. According to the utility model, air is fed into the cooling flow channel through rotation of the blades, so that heat dissipation is carried out on the heat dissipation fins of the cooling flow channel and the inner shell and is discharged from the heat dissipation holes formed in the first end cover, and thus the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor heat dissipation, in particular to a heat dissipation motor of a refrigeration compressor. Background Art

[0002] At present, motors often need to be driven in high temperature or high heat environments. The harsh operating environment will make it difficult for the motor to dissipate heat. As the heat generated by the motor accumulates, the temperature of the motor itself will increase, the output torque and motor speed will decrease, and the working efficiency of the motor will be affected.

[0003] In the prior art, for example, the technical solution described in the patent with publication number: CN220673527U: a heat dissipation type motor housing, which adopts a front and rear two-stage design, and an air trough structure is added inside the housing. During use, the air flow can be continuously circulated in the housing under the drive of the heat dissipation fan, thereby improving the heat dissipation effect of the motor and ensuring that the motor can maintain stable performance during long-term operation.

[0004] Compared with the prior art, the heat sink fins are arranged outside the housing and are cooled by air; this heat dissipation method has poor cooling effect when cooling the heat sink fins because the external space is not concentrated. Utility Model Content

[0005] The utility model aims to provide a heat dissipation motor for a refrigeration compressor, so as to solve the problem in the prior art proposed in the background technology that the cooling effect of the heat dissipation fins is poor when the heat dissipation fins are cooled due to the non-centralized external space.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A heat dissipation motor for a refrigeration compressor comprises a housing, a stator and a rotor are arranged inside the housing; an inner housing is arranged inside the housing; a plurality of heat dissipation fins are arranged between the housing and the inner housing, and heat dissipation channels are formed between the heat dissipation fins;

[0008] End covers are respectively provided at both ends of the outer shell, and the end covers include a first end cover and a second end cover; wherein the first end cover is provided with a heat dissipation hole, the heat dissipation hole is communicated with the heat dissipation flow channel, and the second end cover is connected to the inner shell to seal the inner shell;

[0009] A heat dissipation hood is also arranged on the outer side of the second end cover. The heat dissipation hood is sleeved on the outside of the outer shell. A heat dissipation cavity is formed inside the heat dissipation hood. The heat dissipation channel is also connected to the heat dissipation cavity. Blades are arranged inside the heat dissipation cavity. The rotor includes a rotating shaft, and the blades are fixedly arranged on the rotating shaft.

[0010] According to the above technical solution, the stator and the rotor are both arranged inside the inner shell, wherein the stator is fixedly arranged on the inner shell.

[0011] According to the above technical solution, one end of the rotating shaft passes through the first end cover and extends to the outside of the first end cover, and the other end of the rotating shaft passes through the second end cover and extends to the inside of the heat dissipation cover.

[0012] According to the above technical solution, the heat dissipation fins are fixedly connected to the interior of the housing.

[0013] According to the above technical solution, an air inlet is provided on one side of the heat dissipation cover, and the air inlet is used for air intake.

[0014] According to the above technical solution, a guide hole is also provided on the shell, and the guide hole is used to increase the circulation of air.

[0015] According to the above technical solution, a plurality of guide holes are provided, and the plurality of guide holes are evenly arranged on the outer shell.

[0016] According to the above technical solution, the guide hole is obliquely arranged on the shell, and the guide hole is communicated with the heat dissipation channel.

[0017] According to the above technical solution, a plurality of heat dissipation holes are provided, and the plurality of heat dissipation holes are evenly arranged on the first end cover.

[0018] According to the above technical solution, a base is also provided below the housing, and the base is used to support the motor.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In the utility model, blades are arranged on the rotating shaft of the rotor, and wind is sent into the cooling channel through the rotation of the blades, thereby dissipating heat to the cooling fins and the inner shell of the cooling channel, and discharged from the heat dissipation holes arranged on the first end cover, thereby improving the heat dissipation effect of the motor.

[0021] In the utility model, the heat dissipation fins are arranged inside the outer shell and cooled by wind, so that the heat dissipation fins can be effectively cooled, thereby avoiding the problem that the wind cannot cool the heat dissipation fins in a concentrated manner due to the non-concentrated external space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the internal structure of the motor of the utility model;

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the motor of the utility model;

[0024] Figure 3 It is a schematic diagram of the inner housing structure of the motor of the utility model.

[0025] Markings in the figure: 100 - shell, 200 - stator, 300 - rotor, 400 - inner shell, 500 - heat dissipation fins, 600 - heat dissipation channel, 700 - first end cover, 800 - second end cover, 900 - heat dissipation hole, 110 - heat dissipation cover, 111 - heat dissipation cavity, 112 - blades, 113 - shaft, 114 - air inlet, 115 - guide hole, 116 - base. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1

[0028] like Figure 1 As shown, a heat dissipation motor for a refrigeration compressor includes a housing 100, a stator 200 and a rotor 300 are arranged inside the housing 100; an inner housing 400 is arranged inside the housing 100; a plurality of heat dissipation fins 500 are arranged between the housing 100 and the inner housing 400, and a heat dissipation channel 600 is formed between the heat dissipation fins 500;

[0029] like Figure 1 and Figure 2 As shown, end covers are respectively provided at both ends of the housing 100, and the end covers include a first end cover 700 and a second end cover 800; wherein, a heat dissipation hole 900 is provided on the first end cover 700, and the heat dissipation hole 900 is communicated with the heat dissipation channel 600, and the second end cover 800 is connected to the inner housing 400 for sealing the inner housing 400;

[0030] like Figure 2 As shown, a heat dissipation cover 110 is also provided on the outer side of the second end cover 800. The heat dissipation cover 110 is sleeved on the outside of the outer shell 100. A heat dissipation cavity 111 is formed inside the heat dissipation cover 110. The heat dissipation channel 600 is also connected to the heat dissipation cavity 111. Blades 112 are provided inside the heat dissipation cavity 111. The rotor 300 includes a rotating shaft 113, and the blades 112 are fixedly provided on the rotating shaft 113.

[0031] In the utility model, blades 112 are arranged on the rotating shaft 113 of the rotor 300, and wind is sent into the cooling channel through the rotation of the blades 112, so as to dissipate heat to the heat dissipation fins 500 and the inner shell 400 of the cooling channel, and is discharged from the heat dissipation holes 900 arranged on the first end cover 700, thereby improving the heat dissipation effect.

[0032] Compared with the prior art, the heat sink 500 is disposed outside the housing 100 and air-cooled. This heat dissipation method has poor cooling effect when cooling the heat sink 500 because the external space is not concentrated.

[0033] In the present invention, the heat dissipation fins 500 are arranged inside the housing 100 and cooled by wind, so that the heat dissipation fins 500 can be effectively cooled, thereby avoiding the situation that the wind cannot cool the heat dissipation fins 500 in a concentrated manner due to the non-concentrated external space.

[0034] Embodiment 2

[0035] This embodiment is a further refinement of the first embodiment.

[0036] like Figure 1 As shown, the stator 200 and the rotor 300 are both disposed inside the inner housing 400, wherein the stator 200 is fixedly disposed on the inner housing 400. One end of the rotating shaft 113 passes through the first end cover 700 and extends to the outside of the first end cover 700, and the other end of the rotating shaft 113 passes through the second end cover 800 and extends to the inside of the heat dissipation cover 110.

[0037] Specifically, bearing support seats are respectively provided on the first end cover 700 and the second end cover 800 , and the first end cover 700 and the second end cover 800 are respectively connected to the rotating shaft 113 through the bearing support seats.

[0038] like Figure 3 As shown, the heat dissipation fin 500 is fixedly connected to the inside of the housing 100. Specifically, the heat dissipation fin 500 and the housing 100 are connected by welding or bonding.

[0039] The number of heat dissipation fins 500 is 24 to 30, preferably 30. The heat dissipation fins 500 can not only dissipate heat for the inner housing 400, but also support the inner housing 400.

[0040] An air inlet 114 is provided on one side of the heat dissipation cover 110, and the air inlet 114 is used for air intake when the blades 112 rotate. Specifically, the air inlet 114 is evenly arranged on the side wall of the heat dissipation cover 110. Preferably, the air inlet 114 is an arc-shaped hole.

[0041] In another embodiment, a filter is provided on the inner wall of the air inlet 114 to prevent impurities from entering the heat dissipation channel 600 and causing blockage of the heat dissipation channel 600, thereby affecting the heat dissipation effect.

[0042] like Figure 1As shown, a guide hole 115 is also provided on the housing 100, and the guide hole 115 is used to increase the circulation of air. A plurality of guide holes 115 are provided, and the plurality of guide holes 115 are evenly arranged on the housing 100. The guide holes 115 are arranged obliquely on the housing 100, and the guide holes 115 are connected to the heat dissipation channel 600.

[0043] Specifically, the number of the guide holes 115 is 20 to 30, preferably 20. The guide holes 115 arranged to be inclined downward are used to introduce external wind into the heat dissipation channel 600, thereby improving the heat dissipation effect.

[0044] Specifically, when cold air is blown into the heat dissipation channel 600 through the blades 112 , negative pressure is formed inside the heat dissipation channel 600 , and external air is introduced from the guide holes 115 by the negative pressure, further improving the heat dissipation effect.

[0045] like Figure 1 As shown, a plurality of heat dissipation holes 900 are provided, and the plurality of heat dissipation holes 900 are evenly arranged on the first end cover 700 .

[0046] Preferably, eight heat dissipation holes 900 are provided, and the eight heat dissipation holes 900 are evenly arranged on the first end cover 700 .

[0047] The first end cover 700 is provided with a limiting boss, and the limiting boss is used for connecting the first end cover 700 with the housing 100 .

[0048] The first end cover 700 is also provided with a mounting hole, and the housing 100 is provided with a bolt hole that matches the mounting hole. Through the matching of the mounting hole and the bolt hole, a fixing bolt is installed to fix the first end cover 700 and the housing 100.

[0049] A base 116 is further disposed below the housing 100 , and the base 116 is used to support the motor.

[0050] The working principle of the utility model is as follows: when in use, the rotating shaft 113 of the rotor 300 rotates, and drives the blades 112 arranged in the heat dissipation cavity 111 to rotate together; when the blades 112 rotate, the wind is sent into the heat dissipation channel 600 connected to the heat dissipation cavity 111, and discharged from the heat dissipation holes 900, thereby taking away the heat on the inner shell 400 and the heat dissipation fins 500, thereby playing a role in heat dissipation.

[0051] During the heat dissipation process, since negative pressure is formed inside the heat dissipation channel 600 , the heat dissipation channel 600 introduces external air into the heat dissipation channel 600 through the guide holes 115 , thereby increasing the heat dissipation effect.

[0052] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A heat dissipation motor for a refrigeration compressor, comprising a housing (100), wherein a stator (200) and a rotor (300) are arranged inside the housing (100); characterized in that: An inner shell (400) is arranged inside the outer shell (100); a plurality of heat dissipation fins (500) are arranged between the outer shell (100) and the inner shell (400), and heat dissipation channels (600) are formed between the heat dissipation fins (500); End covers are respectively provided at both ends of the outer shell (100), and the end covers include a first end cover (700) and a second end cover (800); wherein a heat dissipation hole (900) is provided on the first end cover (700), and the heat dissipation hole (900) is communicated with the heat dissipation channel (600); and the second end cover (800) is connected to the inner shell (400) and is used to seal the inner shell (400); A heat dissipation cover (110) is also provided on the outside of the second end cover (800). The heat dissipation cover (110) is sleeved on the outside of the housing (100). A heat dissipation cavity (111) is formed inside the heat dissipation cover (110). The heat dissipation channel (600) is also connected to the heat dissipation cavity (111). Blades (112) are provided inside the heat dissipation cavity (111). The rotor (300) includes a rotating shaft (113), and the blades (112) are fixedly provided on the rotating shaft (113).

2. The heat dissipation motor of a refrigeration compressor according to claim 1, characterized in that: The stator (200) and the rotor (300) are both arranged inside the inner casing (400), wherein the stator (200) is fixedly arranged on the inner casing (400).

3. The heat dissipation motor of a refrigeration compressor according to claim 1, characterized in that: One end of the rotating shaft (113) passes through the first end cover (700) and extends to the outside of the first end cover (700), and the other end of the rotating shaft (113) passes through the second end cover (800) and extends to the inside of the heat dissipation cover (110).

4. The heat dissipation motor of a refrigeration compressor according to claim 1, characterized in that: The heat dissipation fins (500) are fixedly connected to the interior of the housing (100).

5. The heat dissipation motor of a refrigeration compressor according to claim 1, characterized in that: An air inlet (114) is provided on one side of the heat dissipation cover (110), and the air inlet (114) is used for air intake.

6. The heat dissipation motor of a refrigeration compressor according to claim 1, characterized in that: A guide hole (115) is also provided on the housing (100), and the guide hole (115) is used to increase the circulation of air.

7. The heat dissipation motor of a refrigeration compressor according to claim 6, characterized in that: A plurality of flow guide holes (115) are provided, and the plurality of flow guide holes (115) are evenly arranged on the housing (100).

8. The heat dissipation motor of a refrigeration compressor according to claim 7, characterized in that: The guide hole (115) is arranged obliquely on the housing (100), and the guide hole (115) is communicated with the heat dissipation channel (600).

9. The heat dissipation motor of a refrigeration compressor according to claim 1, characterized in that: A plurality of heat dissipation holes (900) are provided, and the plurality of heat dissipation holes (900) are evenly arranged on the first end cover (700).

10. The heat dissipation motor of a refrigeration compressor according to claim 1, characterized in that: A base (116) is also provided below the housing (100), and the base (116) is used to support the motor.

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