Motor load end bearing cooling device

Abstract

The invention discloses a motor load end bearing cooling device which comprises a motor unit, a motor body, a first guide cover arranged at the air outlet end of the motor body, and a second guide cover arranged at the air outlet end of the motor body side by side with the first guide cover. According to the motor load end bearing cooling device, the wind shield and the wind guide arc plate are cooperatively mounted on the outer circumferential surface of the motor body through the connecting plate, and a mounting space for the rotating shaft is reserved between the guide cover I and the guide cover II; air blown out of the air outlet end of the motor body hits the first guide cover and the second guide cover and flows towards the peripheral face of the motor body along the first guide cover and the second guide cover, air flowing on the heat dissipation face of the peripheral face of the motor body can be accelerated, heat dissipation of the motor body is accelerated, the structure is simple, installation and use are convenient, and the heat dissipation effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of electric motors, and in particular to a cooling device for a load-end bearing of an electric motor. Background Art

[0002] Our factory has some relatively large-power motors. In the summer, due to the high ambient temperature, the heat dissipation effect of the motors is poor, and the temperature of the load-side bearings remains high, causing the motors to frequently trip or burn out due to overtemperature. Summary of the invention

[0003] In view of the problem that the existing motor load-end bearing cooling device has poor heat dissipation effect in summer and the load-side bearing temperature remains high, the present invention is proposed.

[0004] Therefore, the present invention provides a motor load-end bearing cooling device, the purpose of which is to solve the technical problem that the heat dissipation effect of the motor is poor in summer and the temperature of the load-side bearing remains high.

[0005] In order to solve the above technical problems, the present invention provides the following technical solution: comprising a motor unit.

[0006] The motor unit includes a motor body, a guide cover 1 arranged at the air outlet end of the motor body, and a guide cover 2 arranged side by side with the guide cover 1 at the air outlet end of the motor body.

[0007] As a preferred solution of the motor load end bearing cooling device described in the present invention, the guide cover 1 includes a wind shield, a connecting plate arranged on the outer peripheral surface of the motor body, and an air guide arc plate arranged on the wind shield and connected to the connecting plate.

[0008] As a preferred solution of the motor load-end bearing cooling device of the present invention, an air flow gap is left between the air guide arc plate and the outer peripheral surface of the motor body.

[0009] As a preferred solution of the motor load-end bearing cooling device of the present invention, the angle between the two sides of the wind shield plate that are not connected to the wind guide arc plate is α.

[0010] As a preferred solution of the motor load end bearing cooling device of the present invention, wherein: the distance from the wind shield to the air outlet end of the motor body is X.

[0011] As a preferred solution of the motor load end bearing cooling device of the present invention, wherein: X is 10-20 cm.

[0012] As a preferred solution of the motor load end bearing cooling device of the present invention, wherein: X is 15 cm.

[0013] As a preferred solution of the motor load end bearing cooling device of the present invention, the length of the air guide arc plate is 15-25 cm.

[0014] As a preferred solution of the motor load-end bearing cooling device of the present invention, the length of the air guide arc plate is 20 cm.

[0015] As a preferred solution of the motor load end bearing cooling device of the present invention, the wind shield plate and the wind guide arc plate are both made of sound insulation material.

[0016] The beneficial effects of the present invention are as follows: a motor body, a guide cover 1 and a guide cover 2 are provided, and a wind shield plate and an air guide arc plate are cooperatively installed on the outer peripheral surface of the motor body through a connecting plate, and an installation space of a rotating shaft is reserved between the guide cover 1 and the guide cover 2; wind blown out from the air outlet end of the motor body hits the guide cover 1 and the guide cover 2, and flows along the guide cover 1 and the guide cover 2 toward the outer peripheral surface of the motor body, which can accelerate the air flow on the heat dissipation surface of the outer peripheral surface of the motor body and speed up the heat dissipation of the motor body, has a simple structure, is easy to install and use, and has a good heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is the front view of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the guide cover 1 in the present invention. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0023] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0024] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0025] Example 1, reference Figure 1-3 , which is the first embodiment of the present invention, provides a motor load end bearing cooling device, which includes a motor unit 100. The cooling device is installed on the motor body 101, and together with the motor body 101 constitutes the motor unit 100, which can perform air cooling and heat dissipation on the load end bearing of the motor body 101.

[0026] The motor unit 100 includes a motor body 101, a guide cover 102 disposed at the air outlet end of the motor body 101, and a guide cover 2 103 disposed side by side with the guide cover 102 at the air outlet end of the motor body 101. The guide cover 102 and the guide cover 2 103 are arranged side by side at the air outlet end of the motor body 101, and the guide cover 102 and the guide cover 2 103 have the same structure, and an installation space for the rotating shaft is reserved between the guide cover 102 and the guide cover 2 103; the wind blown out from the air outlet end of the motor body 101 hits the guide cover 102 and the guide cover 2 103, and flows along the guide cover 102 and the guide cover 2 103 toward the outer peripheral surface of the motor body 101, which can accelerate the air flow of the outer peripheral heat dissipation surface of the motor body 101, accelerate the heat dissipation of the motor body 101, and has a simple structure, is easy to install and use, and has a good heat dissipation effect.

[0027] Preferably, the guide cover 102 includes a windshield 102a, a connecting plate 102b disposed on the outer peripheral surface of the motor body 101, and a wind guide arc plate 102c disposed on the windshield 102a and connected to the connecting plate 102b. The windshield 102a is provided to block the wind at the air outlet of the motor body 101, so that the wind changes its direction after being blocked and flows along the wind guide arc plate 102c, thereby accelerating the air flow rate on the outer peripheral surface of the motor body 101, thereby achieving rapid heat dissipation of the outer peripheral surface of the motor body 101.

[0028] Furthermore, an air flow gap is left between the air guide arc plate 102c and the outer peripheral surface of the motor body 101. The wind blocked and turned by the wind shield 102a flows along the gap between the air guide arc plate 102c and the outer peripheral surface of the motor body 101, thereby achieving rapid heat dissipation of the outer peripheral surface of the motor body 101.

[0029] Furthermore, the angle between the two sides of the wind shield 102a that are not connected to the wind deflector arc plate 102c is α. By setting the angle α, the outer shape structure of the motor body 101 can be adapted, and the wind shield 102a can be easily installed.

[0030] In particular, the distance between the wind shield 102a and the air outlet of the motor body 101 is X. By considering the wind speed distribution uniformity B1, wind direction change efficiency B2, noise level B3, energy consumption B4, heat dissipation efficiency B5 and comprehensive influence effect, the distance between the wind shield 102a and the air outlet of the motor body 101 is experimented and controlled.

[0031] During use, the wind shield plate 102a and the wind guide arc plate 102c are installed on the outer peripheral surface of the motor body 101 through the connecting plate 102b, and an installation space for the rotating shaft is reserved between the guide cover 102 and the guide cover 2 103; the wind blown out from the air outlet end of the motor body 101 hits the guide cover 102 and the guide cover 2 103, and flows along the guide cover 102 and the guide cover 2 103 toward the outer peripheral surface of the motor body 101, which can accelerate the air flow on the heat dissipation surface of the outer peripheral surface of the motor body 101 and speed up the heat dissipation of the motor body 101. It has a simple structure, is easy to install and use, and has a good heat dissipation effect.

[0032] Embodiment 2, as shown in the following table, is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: through multiple groups of experimental data, a data table of the mutual influence between the value of X and the wind speed distribution uniformity B1, wind direction change efficiency B2, noise level B3, energy consumption B4, heat dissipation efficiency B5 and comprehensive influence effect B6 is obtained.

[0033]

[0034] Wind speed distribution uniformity B1: The higher the score, the more uniform the wind speed distribution.

[0035] Wind direction change efficiency B2: expressed as a percentage, the higher the value, the better the effect of wind direction change.

[0036] Noise level B3: measured in decibels (dB). The lower the value, the quieter the noise.

[0037] Energy consumption B4: In watts (W), it indicates the electrical energy consumed when the system is running.

[0038] Heat dissipation efficiency B5: In units of ℃ / min, it represents the amount of heat dissipated per unit time (assuming that the faster the temperature drops, the higher the heat dissipation efficiency).

[0039] Compared with Example 1, further, X is 10-20 cm. Through multiple groups of experimental data, it can be seen that when X is within the range of 10-20 cm, the comprehensive effect can reach the best value.

[0040] Preferably, X is 15 cm. It can be seen from the above experimental data that when X is selected to be 15 cm vertically, the comprehensive effect can reach the optimal value 82.

[0041] The remaining structures are the same as those of Example 1.

[0042] Embodiment 3, as shown in the following table, is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: a data relationship table between the length of the air guide arc plate 102c and the air flow B1, noise control B2, and comprehensive impact effect B3 is obtained through multiple sets of experimental data.

[0043] Compared with Example 2, further, the length of the air guide arc plate 102c is 15-25cm. The length of the air guide arc plate 102c is set relative to the length of the motor body 101. The length of the existing motor body 101 is about 1m. Therefore, through multiple sets of experimental data, considering the air flow B1, noise control B2, and comprehensive impact effects, it is concluded that when the length of the air guide arc plate 102c is 15-25cm, the comprehensive impact effect can achieve the best value.

[0044] Length (cm) Air flow B1 Noise Control B2(dB) Comprehensive impact effect B3 (100) 5 60 65 60 10 75 60 70 15 85 58 78 20 90 55 82 25 92 56 80 30 90 58 78

[0045] Air flow B1: A relative index is used here to measure the effect of air flow. In actual applications, this index may be flow rate, speed or other related parameters based on experimental data. The higher the value, the better the air flow effect.

[0046] Noise Control B2: measured in decibels (dB). The lower the value, the better the noise control effect.

[0047] Comprehensive impact effect B3: It is obtained based on the weighted average of air flow B1 and noise control B2 or some other composite calculation method.

[0048] Furthermore, the length of the air guide arc plate 102c is 20 cm. It can be seen from the above multiple groups of experimental data that when the length of the air guide arc plate 102c is 20 cm, the comprehensive effect achieves the best value 82.

[0049] Preferably, the wind shield 102a and the wind guide arc plate 102c are both made of sound insulation material. By using the sound insulation material, the noise level B3 generated by the wind at the wind outlet end of the motor body 101 blowing on the wind shield 102a and the wind guide arc plate 102c can be reduced.

[0050] The remaining structure is the same as that of Example 2.

[0051] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of the execution function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0052] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0053] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A motor load end bearing cooling device, characterized in that: include, The motor unit (100) comprises a motor body (101), a guide cover 1 (102) arranged at the air outlet end of the motor body (101), and a guide cover 2 (103) arranged side by side with the guide cover 1 (102) at the air outlet end of the motor body (101).

2. The motor load end bearing cooling device according to claim 1 is characterized in that: The guide cover (102) comprises a wind shield (102a), a connecting plate (102b) arranged on the outer peripheral surface of the motor body (101), and a wind guide arc plate (102c) arranged on the wind shield (102a) and connected to the connecting plate (102b).

3. The motor load end bearing cooling device according to claim 2 is characterized in that: An air flow gap is left between the air guide arc plate (102c) and the outer peripheral surface of the motor body (101).

4. The motor load end bearing cooling device according to claim 3 is characterized in that: The angle between the two sides of the wind shield plate (102a) that are not connected to the wind guide arc plate (102c) is α.

5. The motor load end bearing cooling device according to claim 4 is characterized in that: The distance between the wind shield (102a) and the air outlet end of the motor body (101) is X.

6. The motor load end bearing cooling device according to claim 5, characterized in that: The X is 10-20 cm.

7. The motor load end bearing cooling device according to claim 6, characterized in that: The X is 15 cm.

8. The motor load end bearing cooling device according to claim 7, characterized in that: The length of the air guide arc plate (102c) is 15-25 cm.

9. The motor load end bearing cooling device according to claim 8, characterized in that: The length of the air guide arc plate (102c) is 20 cm.

10. The motor load end bearing cooling device according to claim 9, characterized in that: The wind shield plate (102a) and the wind guide arc plate (102c) are both made of sound insulation materials.

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