CN212463014U - Motor heat abstractor and electrical equipment - Google Patents
Motor heat abstractor and electrical equipment Download PDFInfo
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- CN212463014U CN212463014U CN202021767034.0U CN202021767034U CN212463014U CN 212463014 U CN212463014 U CN 212463014U CN 202021767034 U CN202021767034 U CN 202021767034U CN 212463014 U CN212463014 U CN 212463014U
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Abstract
The utility model discloses a motor heat abstractor and electrical equipment. Wherein, the device includes: the fan blade is arranged on a rotating shaft of the motor; the fan cover covers the motor, an air inlet and an air outlet are formed in the fan cover, the air inlet is located at one end, far away from the fan blades, of the fan cover, the air outlet is located at one end, close to the fan blades, of the fan cover, and the size of the air inlet is adjustably arranged. Through the utility model discloses, can be when motor radiating effect is relatively poor, the increase air intake channels into more air currents, and motor surface cooling is favorable to reducing the temperature of motor with higher speed, improves the life of motor.
Description
Technical Field
The utility model relates to the technical field of motors, particularly, relate to a motor heat abstractor and electrical equipment.
Background
The electric appliances on the market are various in types, and most of the electric appliances are provided with motors. When the motor runs at high speed, the winding temperature of the motor is always kept high, and the surface temperature of the motor is also high according to the inference of temperature gradient data. At the moment, although the environment temperature of the motor is lower than the surface temperature of the motor shell, the temperature difference is small, and the motor cannot dissipate heat because the surface temperature of the motor is not greatly different from the nearby environment temperature. The motor winding can seriously lose the material of the winding when working at high temperature for a long time, and the service life of the motor is influenced, so that the reliability and the service life of the whole electrical equipment are influenced.
Aiming at the problem that the motor cannot dissipate heat due to the fact that the temperature difference between the surface of the motor and the nearby environment is small in the prior art, an effective solution is not provided at present.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an in provide a motor heat abstractor and electrical equipment to solve among the prior art motor surface and near ambient temperature difference in temperature less, lead to the unable radiating problem of motor.
In order to solve the technical problem, the utility model provides a motor heat abstractor, wherein, the device includes:
the fan blade is arranged on a rotating shaft of the motor;
the fan cover covers the motor, an air inlet and an air outlet are formed in the fan cover, the air inlet is located at one end, far away from the fan blades, of the fan cover, the air outlet is located at one end, close to the fan blades, of the fan cover, and the size of the air inlet is adjustably arranged.
Further, the apparatus further comprises:
the at least one blade is hinged with the edge of the air inlet, and the size of the air inlet is adjusted by adjusting the opening angle of the blade; the opening angle is an included angle which is larger than zero and formed by the plane where the blades are located and the axial direction of the motor.
Further, the apparatus further comprises:
and one end of the supporting mechanism is connected with the base of the motor, and the other end of the supporting mechanism supports the blade and is used for driving the blade to open and close.
Further, the length or the inclination angle of the support mechanism is adjustable.
Further, along the air inlet to the air outlet direction, the cross-sectional area of the fan housing is gradually reduced.
Further, the apparatus further comprises:
and the driving mechanism is connected with the motor and is used for driving the motor to move between the air inlet and the air outlet.
Further, the apparatus further comprises:
the first temperature sensor is arranged on the surface of the motor and used for detecting the surface temperature of the motor;
the second temperature sensor is arranged at the air inlet and used for detecting the air inlet temperature of the fan cover;
the third temperature sensor is arranged at the air outlet and used for detecting the air outlet temperature of the fan cover; the surface temperature of the motor, the air inlet temperature and the air outlet temperature are used for adjusting the size of the air inlet.
The utility model also provides an electrical equipment, including the motor, still include above-mentioned motor heat abstractor.
Further, the electrical device comprises at least one of:
air conditioner, washing machine, refrigerator, water heater, fan, drying-machine, air purifier, water purification machine.
Use the technical scheme of the utility model, set up the fan housing, the cover is established the outside of motor, air intake and air outlet have been seted up on the fan housing, the air intake is in be located on the fan housing and keep away from the one end of fan blade, the air outlet is in lie in on the fan housing and be close to the one end of fan blade, the size of air intake is set up adjustably, and through the size of adjusting the air intake, adjust the wind-guiding area, can be when motor radiating effect is relatively poor, increase the air intake, leading-in more air current, the motor surface cooling accelerates is favorable to reducing the temperature of motor, improves the life of motor.
Drawings
Fig. 1 is a structural view of a heat dissipating device according to an embodiment of the present invention;
fig. 2 is a structural view of a heat dissipating device according to another embodiment of the present invention;
FIG. 3 is an internal structure view of the supporting mechanism according to the present invention
Fig. 4 is a schematic view of a blade opening and closing process according to an embodiment of the present invention;
FIG. 5 is a schematic view of a blade opening and closing process according to another embodiment of the present invention;
fig. 6 is an internal structural view of a drive mechanism according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that although the terms first, second, etc. may be used in describing differences in the embodiments of the present invention, these differences should not be limited to these terms. These terms are only used to distinguish between different differences. For example, a first difference may also be referred to as a second difference, and similarly, a second difference may also be referred to as a first difference, without departing from the scope of embodiments of the present invention.
The words "if", as used herein, may be interpreted as "at … …" or "at … …" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrases "if determined" or "if detected (a stated condition or event)" may be interpreted as "when determined" or "in response to a determination" or "when detected (a stated condition or event)" or "in response to a detection (a stated condition or event)", depending on the context.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in the article or device in which the element is included.
The following describes in detail alternative embodiments of the present invention with reference to the accompanying drawings.
Example 1
This embodiment provides a motor heat abstractor, and fig. 1 is according to the utility model discloses heat abstractor's structure chart, as shown in fig. 1, the device includes:
the fan blade 1 is arranged on a rotating shaft 3 of the motor 2 and is driven by the rotating shaft 3 to rotate; the fan cover 4 covers the motor 2, an air inlet 41 and an air outlet 42 are formed in the fan cover 4, the air inlet 41 is located at one end, far away from the fan blades 1, of the fan cover 4, the air outlet 42 is located at one end, close to the fan blades 1, of the fan cover 4, and the size of the air inlet 41 is adjustable.
The rotation of the fan blades 1 drives the surrounding air to flow, and the pressure intensity at the position with large air flow velocity is small, so that the pressure intensity of the air outlet 42 of the fan cover is lower than that of the air inlet 41, low-temperature air in the environment where the motor is located enters from the air inlet 41 due to pressure difference, the air outlet 42 is discharged, the low-temperature air is limited in a certain space range through the fan cover 4, and the low-temperature air is discharged after being subjected to sufficient heat exchange with the surface of the motor. The air hood is used for isolating the air area to form air pressure difference so as to change the air flow speed on the surface of the motor, thereby realizing the cooling of the surface of the motor.
The motor heat dissipation device of this embodiment, set up fan housing 4, the cover is established in the outside of motor 2, air intake 41 and air outlet 42 have been seted up on the fan housing, air intake 41 is located the one end of keeping away from fan blade 1 on the fan housing, air outlet 42 is located the one end that is close to fan blade 1 on fan housing 4, the size of air intake 41 is adjustable to be set up, through the size of adjusting air intake 41, adjust the wind-guiding area, can be when motor 2 radiating effect is relatively poor, increase air intake 41, leading-in more air current, accelerated motor 2 surface cooling, be favorable to reducing the temperature of motor 2, improve motor 2's life.
Example 2
This embodiment provides another kind of motor heat abstractor, fig. 2 is a structural diagram of a heat abstractor according to another embodiment of the present invention, in order to change the size of the air inlet 41, as shown in fig. 2, the device includes:
the blade 5 is hinged with the edge of the air inlet 41, and the size of the air inlet 41 is adjusted by adjusting the opening angle of the blade 5; the opening angle is an included angle theta formed by a plane where the blade 5 is located and the axial direction of the motor 2, wherein theta is larger than zero. In this embodiment, the shape of the air inlet 41 is a rectangle, the number of the blades is two, and the two blades are respectively and correspondingly disposed on two opposite sides of the rectangular air inlet 41, of course, the air inlet 41 may also be set as polygons such as a triangle and a pentagon, or irregular shapes, as long as at least one of the sides is a straight line, the blades can be hinged thereon, the number of the blades may also be set according to the air inlet 41 and actual needs, and may be 1 or 2, or more, the setting mode may be interval setting, and may be set on two opposite sides of the air inlet, or may be one blade on each side of the air inlet 41.
Since the size of the air inlet 41 needs to be adjusted by opening and closing the blades 5, and the opening and closing of the blades 5 needs power, as shown in fig. 2, the above-mentioned apparatus further includes: the supporting mechanism 6 is preferably a supporting rod, one end of the supporting mechanism 6 is connected with the base 7 of the motor 2, and the other end of the supporting mechanism 6 supports the blade 5 and is used for driving the blade 5 to open and close; the base 7 is connected with the motor 2 through the rotating shaft 3.
Fig. 3 is an internal structure diagram of the supporting mechanism according to the present invention, the opening angle θ of the blade 5 is adjusted by adjusting the length of the supporting mechanism 6, specifically, as shown in fig. 3, the supporting mechanism 6 is a telescopic loop bar, the loop bar at least comprises a first section 61 and a second section 62, the hollow part of the second section 62 forms a cylinder 63, the length of the overlapping part of the first section 61 and the second section 62 is shortened and the loop bar is extended by filling air into the cylinder 63, wherein the more air is filled into the cylinder, the longer the length of the loop bar is, after the required length is adjusted, the air in the cylinder is not changed, and the loop bar is stabilized at a certain length. It should be noted that, this embodiment only shows a specific implementation manner of changing the length of the supporting mechanism, and in the specific implementation process, the length of the loop bar may also be changed by other manners, for example, by using a snap connection, a threaded connection, etc. between different sections of the loop bar, and by changing the length of the overlapping portion between different sections of the loop bar, the loop bar is extended and retracted.
Fig. 4 is a schematic diagram of the opening and closing process of the blade according to the embodiment of the present invention, as shown in fig. 4, the supporting mechanism 6 is fixed on the base 7, when the supporting mechanism 6 is extended, the opening angle θ of the blade 5 becomes large, and when the supporting mechanism 6 is shortened, the opening angle θ of the blade 5 becomes small.
Fig. 5 is a schematic view of the opening and closing process of the blade according to another embodiment of the present invention, as shown in fig. 5, one end of the supporting mechanism 6 is movably connected to the blade 5, the other end of the supporting mechanism is movably connected to the base 7, and the opening angle of the blade 5 is adjusted by adjusting the inclination angle of the supporting mechanism 6, the smaller the inclination angle β of the supporting mechanism 6 relative to the plane of the base 7 is, the larger the opening angle θ of the blade 5 is, the larger the inclination angle β of the supporting mechanism 6 relative to the plane of the base 7 is, and the smaller the opening angle θ of the blade 5 is.
It should be noted that, as can be seen from fig. 1 in the above embodiment, after the opening angle of the vane 5 exceeds 90 °, the opening angle of the opening vane is further increased, and the size of the tuyere is not changed, so in the actual control process, θ is smaller than 90 °.
In the above embodiment, due to the action of the fan blades, the low-temperature gas flows in the fan housing, and according to the venturi principle, when the gas or liquid flows in the pipeline, the dynamic pressure reaches the maximum value at the narrowest part of the pipeline, the static pressure reaches the minimum value, and the speed of the gas rises due to the reduction of the cross-sectional area of the through-flow. The entire inrush current is subjected to the pipe reduction process at the same time, and the pressure is reduced at the same time. Thereby creating a pressure differential that can be used to provide an external suction to the fluid. Therefore, in order to increase the flow rate of the gas, the flow area of the gas flow is gradually reduced along the direction from the air inlet 41 to the air outlet 42, that is, the area of the air inlet 41 is relatively large, and the area of the air outlet 42 is relatively small, the cross-sectional area of the fan housing is gradually decreased along the direction from the air inlet 41 to the air outlet 42, and the shape of the fan housing is similar to the shape of a tilted funnel, so that the flow speed of the gas at the air outlet 42 is increased.
Because of the combined action of the fan blade and the fan housing, the air flow speed at the air outlet 42 is the fastest, the air flow speed at the air inlet 41 is the slowest, the faster the air flow speed is, and the faster the heat dissipation is, therefore, in order to adjust the heat dissipation speed of the motor surface, the heat dissipation of the motor can be accelerated or slowed down by moving the motor 2 in the direction of the air inlet 41 or in the direction of the air outlet 42, and in order to make the motor 2 move along the axial direction thereof, the device further comprises:
a driving mechanism 8 connected to the motor 2 for driving the motor 2 to move between the air inlet 42 and the air outlet 41, fig. 6 is an internal structure diagram of the driving mechanism according to the embodiment of the present invention, as shown in fig. 6, the driving mechanism 8 includes a first air chamber 81, a second air chamber 82, an air wall 83, a piston 84, and a push rod 85, two ends of the push rod 85 are respectively fixedly connected to the motor 2 and the piston 84, when the heat dissipation effect of the motor 2 is good, the motor is moved toward the air inlet 41 to achieve the balance of the heat dissipation speed, and when the heat dissipation effect of the motor 2 is poor, the motor is moved toward the air outlet 42 to accelerate the surface heat dissipation of the motor 2; if the motor 2 needs to move towards the air inlet (right direction in the figure), the first air chamber 81 is filled with air, the piston 84 is pushed to move rightwards, the second air chamber 82 is exhausted, the push rod 85 is pushed to move rightwards at the same time, and the motor 2 is driven to move rightwards, similarly, if the motor 2 needs to move towards the air outlet (left direction in the figure), the second air chamber 82 is filled with air, the piston 84 is pushed to move leftwards, the first air chamber 81 is exhausted, and the push rod 85 is pushed to move leftwards at the same time, so that the motor 2 is driven to move leftwards.
According to the difference and distance induction of the air outlet temperature and the air inlet temperature of the fan cover, the relative position between the fan and the fan cover is regulated and controlled by a driving mechanism 8 connected with a rotating shaft 3 of the motor 2, and the air flow speed on the surface of the fan is controlled.
In order to obtain the heat dissipation condition of the motor 2, it is necessary to obtain the surface temperature of the motor, the inlet air temperature and the outlet air temperature of the fan housing, and therefore, the device further includes: a first temperature sensor 9 arranged on the surface of the motor 2 and used for detecting the temperature of the surface of the motor 2; the second temperature sensor 10 is arranged at the air inlet 41 and used for detecting the air inlet temperature of the fan cover; and the third temperature sensor 11 is arranged at the air outlet 42 and used for detecting the air outlet temperature of the fan cover. The heat dissipation condition of the motor is judged according to the surface temperature of the motor, the air inlet temperature and the air outlet temperature of the fan cover, and then the opening angle of the blade 5 and/or the movement of the motor are controlled. The motor heat dissipation device of the embodiment can adjust the heat dissipation speed in real time according to the actual heat dissipation condition, and the heat dissipation speed on the surface of the motor is guaranteed to be constant.
Example 3
The embodiment of the invention provides electrical equipment, which comprises a motor and a motor heat dissipation device, wherein the motor heat dissipation device is used for increasing heat exchange airflow and accelerating the surface heat dissipation of the motor when the heat dissipation effect of the motor is poor, so that the temperature of the motor is reduced, the service life of the motor is prolonged, and the service life of the whole electrical equipment is prolonged. The electrical equipment at least comprises one of the following components:
air conditioner, washing machine, refrigerator, water heater, fan, drying-machine, air purifier, water purification machine.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A heat sink for an electric motor, the heat sink comprising:
the fan blade (1) is arranged on a rotating shaft of the motor (2);
the fan cover (4) is covered outside the motor (2), an air inlet (41) and an air outlet (42) are formed in the fan cover (4), the air inlet (41) is formed in the fan cover (4) and is located at one end far away from the fan blade (1), the air outlet (42) is formed in the fan cover (4) and is located at one end close to the fan blade (1), and the size of the air inlet (41) is adjustably arranged.
2. The apparatus of claim 1, further comprising:
at least one blade (5) hinged with the edge of the air inlet (41), and the size of the air inlet (41) is adjusted by adjusting the opening angle of the blade (5); the opening angle is an included angle which is larger than zero and formed by the plane where the blades (5) are located and the axial direction of the motor (2).
3. The apparatus of claim 2, further comprising:
and one end of the supporting mechanism (6) is connected with the base (7) of the motor (2), and the other end of the supporting mechanism supports the blade (5) and is used for driving the blade (5) to open and close.
4. A device according to claim 3, characterized in that the length or the angle of inclination of the support means (6) is adjustable.
5. The device according to claim 1, wherein the cross-sectional area of the hood decreases gradually from the air inlet (41) to the air outlet (42).
6. The apparatus of claim 1, further comprising:
and the driving mechanism (8) is connected with the motor (2) and is used for driving the motor (2) to move between the air inlet (41) and the air outlet (42).
7. The apparatus of claim 1, further comprising:
a first temperature sensor (9) arranged on the surface of the motor (2) and used for detecting the surface temperature of the motor (2);
the second temperature sensor (10) is arranged at the air inlet (41) and used for detecting the air inlet temperature of the air cover;
the third temperature sensor (11) is arranged at the air outlet (42) and used for detecting the air outlet temperature of the fan cover; the surface temperature of the motor (2), the air inlet temperature and the air outlet temperature are used for adjusting the size of the air inlet (41).
8. An electrical apparatus comprising an electrical machine, characterized in that the electrical apparatus further comprises a heat sink for an electrical machine as claimed in any one of claims 1 to 7.
9. The electrical device of claim 8, wherein the electrical device comprises at least one of:
air conditioner, washing machine, refrigerator, water heater, fan, drying-machine, air purifier, water purification machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021767034.0U CN212463014U (en) | 2020-08-21 | 2020-08-21 | Motor heat abstractor and electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021767034.0U CN212463014U (en) | 2020-08-21 | 2020-08-21 | Motor heat abstractor and electrical equipment |
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| Publication Number | Publication Date |
|---|---|
| CN212463014U true CN212463014U (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021767034.0U Active CN212463014U (en) | 2020-08-21 | 2020-08-21 | Motor heat abstractor and electrical equipment |
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| CN (1) | CN212463014U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111953137A (en) * | 2020-08-21 | 2020-11-17 | 珠海格力电器股份有限公司 | Motor heat dissipation device and method and electrical equipment |
-
2020
- 2020-08-21 CN CN202021767034.0U patent/CN212463014U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111953137A (en) * | 2020-08-21 | 2020-11-17 | 珠海格力电器股份有限公司 | Motor heat dissipation device and method and electrical equipment |
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