CN109921569B

CN109921569B - Electric machine

Info

Publication number: CN109921569B
Application number: CN201910303417.8A
Authority: CN
Inventors: 李霞; 倪世章
Original assignee: Shengli Oil Field Is Followed Mandate Of Heaven Energy Saving Technology Co
Current assignee: Shengli Oilfield Suntek Energy Saving Technologies Co ltd
Priority date: 2019-04-16
Filing date: 2019-04-16
Publication date: 2020-02-14
Anticipated expiration: 2039-04-16
Also published as: CN109921569A

Abstract

The invention provides a motor, and relates to the technical field of motors. The motor includes: the motor shell comprises a shell body, a wire grain heat dissipation component and a heat dissipation fin assembly, wherein the shell body comprises a mounting cavity and a heat dissipation cavity. The radiating fin assembly comprises flat fins and warped fins, the flat fins penetrate through the radiating cavity along the circumferential direction of the shell body, the radiating cavity is divided into a plurality of radiating unit chambers by the flat fins, and the middle positions of the warped fins are connected with the flat fins. The line grain heat dissipation component comprises metal wires and metal beads, the metal beads are connected in series through the metal wires, and the metal beads are located in the heat dissipation unit chamber and can move in the heat dissipation unit chamber. Stator, rotor, end cover, the rotor rotationally sets up in shell body, is located the installation cavity and is located between the stator, and the end cover is connected in shell body's one end. The motor can have better heat-sinking capability, helps better work.

Description

Electric machine

Technical Field

The invention relates to the technical field of motors, in particular to a motor.

Background

An Electric machine (also known as "motor") refers to an electromagnetic device that converts or transmits Electric energy according to the law of electromagnetic induction.

The motor is represented by a letter M (old standard is represented by a letter D) in a circuit, the motor mainly plays a role of generating driving torque and serving as a power source of electrical appliances or various machines, the generator is represented by a letter G in a circuit, and the generator mainly plays a role of converting mechanical energy into electric energy.

The device can be divided into the following parts according to the structure and the working principle: it can be divided into dc motors, asynchronous motors, and synchronous motors.

The existing generators also have the common defects that the motors are easy to heat, low in efficiency, low in permanent magnetic energy utilization rate and high in use cost.

The motor generates a large amount of heat when in use, a fan method is generally adopted in the design for cooling the motor, namely, a fan is arranged at one end of the motor, and the design has the defects that the cooling method is weak in effect and influences the use of the motor.

Therefore, there is a need to provide better heat dissipation solutions.

Disclosure of Invention

The invention aims to provide a motor which has better heat dissipation capacity and is beneficial to better work.

The embodiment of the invention is realized by the following steps:

an embodiment of the present invention provides a motor including:

a motor housing including a housing body, a pellet heat dissipating member, and a heat dissipating fin assembly, the housing body including a mounting chamber and a heat dissipating chamber, the heat dissipating chamber being located outside the mounting chamber;

the heat dissipation fin assembly comprises flat fins and warped fins, the flat fins penetrate through the heat dissipation chamber along the circumferential direction of the shell body, the heat dissipation chamber is divided into a plurality of heat dissipation unit chambers by the flat fins, the number of the warped fins corresponds to that of the flat fins, the cross sections of the warped fins are arc-shaped, the middle positions of the arc-shaped warped fins are connected with the end portions of the flat fins, which are located outside the heat dissipation chamber, and the bending directions of the arc-shaped warped fins are deviated from the shell body;

the wire grain heat dissipation component comprises metal wires and metal beads, the metal beads are connected in series by the metal wires, two ends of each metal wire penetrate through the shell body and are connected with the flat fins outside the shell body, other parts of the metal wires are located in the heat dissipation unit chamber, and the metal beads are located in the heat dissipation unit chamber and can move in the heat dissipation unit chamber;

the stator is arranged on the inner wall surface of the shell body and is positioned in the mounting cavity;

a rotor rotatably disposed in the housing body, located within the mounting chamber and between the stators;

an end cap connected to one end of the housing body.

In addition, the motor provided by the embodiment of the invention can also have the following additional technical characteristics:

in an alternative embodiment of the present invention, the heat dissipating unit chambers are annular, and each of the heat dissipating unit chambers has a uniform size.

In an alternative embodiment of the present invention, each of the heat dissipating unit chambers accommodates a plurality of the wire pellet heat dissipating members.

In an optional embodiment of the invention, one side of the cambered warped fin far away from the shell body is coated with a light reflecting layer.

In an alternative embodiment of the present invention, the motor housing further includes a lug disposed on an outer side of the housing body.

In an alternative embodiment of the invention, the metal beads are copper beads.

In an alternative embodiment of the invention, the particle size of the copper beads is 5-20 mm.

In an alternative embodiment of the present invention, the metal wire is a flexible wire, and a plurality of the metal beads are spaced apart on the metal wire.

In an alternative embodiment of the present invention, the heat fin assembly further includes a connecting bar through which a plurality of the warped fins are connected in series.

In an optional embodiment of the invention, the flat fins are semi-circular, two semi-circular flat fins located in the same plane are spliced into a circle, and the semi-circular flat fins are detachably inserted into the shell body.

The invention has the beneficial effects that:

the motor can be through dividing the radiating unit room on the shell body for line grain heat dissipation component can have the accommodation space, accelerates the speed of absorbing heat through the vibrations of line grain heat dissipation component cooperation motor self during operation, and can transmit the heat in the outside fin assembly more fast, increases radiating area, thereby makes radiating efficiency higher, ensures that motor self during operation does not influence stability because of the heat dissipation problem.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present invention;

fig. 2 is an axial cross-sectional view of the motor housing of fig. 1;

fig. 3 is a partially enlarged view of a portion a of fig. 2;

FIG. 4 is a schematic layout view of a wire-fin heat dissipation member;

FIG. 5 is a schematic view of a semi-annular flat fin and a warped fin attached thereto.

Icon: 100-a motor; 10-motor housing; 20-a shell body; 21-mounting a chamber; 22-a heat dissipation chamber; 30-a wire grain heat dissipation member; 31-a wire; 32-metal beads; 41-flat fins; 42-a warped fin; 43-a light-reflecting layer; 44-a connecting strip; 50-lifting lugs; 101-a rotor; 102-end cap.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature may be present on or under the second feature in direct contact with the first and second feature, or may be present in the first and second feature not in direct contact but in contact with another feature between them. Also, the first feature being above, on or above the second feature includes the first feature being directly above and obliquely above the second feature, or merely means that the first feature is at a higher level than the second feature. A first feature that underlies, and underlies a second feature includes a first feature that is directly under and obliquely under a second feature, or simply means that the first feature is at a lesser level than the second feature.

Examples

Referring to fig. 1 to 5, the present embodiment provides a motor 100, including:

a motor housing 10 including a housing body 20, a pellet heat radiating member 30, and a heat radiating fin assembly, the housing body 20 including a mounting chamber 21 and a heat radiating chamber 22, the heat radiating chamber 22 being located outside the mounting chamber 21;

the radiating fin assembly comprises flat fins 41 and warped fins 42, the flat fins 41 penetrate through the radiating cavity 22 along the circumferential direction of the shell body 20, the radiating cavity 22 is divided into a plurality of radiating unit chambers by the flat fins 41, the number of the warped fins 42 corresponds to that of the flat fins 41, the sections of the warped fins 42 are arc-shaped, the middle positions of the arc-shaped warped fins 42 are connected with the end parts of the flat fins 41, which are positioned outside the radiating cavity 22, and the bending directions of the arc-shaped warped fins 42 are opposite to the shell body 20;

the wire grain heat dissipation member 30 comprises a metal wire 31 and metal beads 32, wherein a plurality of metal beads 32 are connected in series by the metal wire 31, two ends of the metal wire 31 penetrate through the shell body 20 and are connected with the flat fins 41 outside the shell body 20, other parts of the metal wire 31 are positioned in the heat dissipation unit chamber, and the metal beads 32 are positioned in the heat dissipation unit chamber and can move in the heat dissipation unit chamber;

a stator provided on an inner wall surface of the case body 20 and located in the installation chamber 21;

a rotor 101, the rotor 101 being rotatably provided to the case body 20, being located in the mounting chamber 21 and between the stators;

an end cap 102, the end cap 102 being connected to one end of the housing body 20.

The radiating unit chambers are annular, and the size of each radiating unit chamber is consistent. Therefore, the processed structure is more balanced and stable.

The stator, the rotor 101, the end cover 102, and the like can refer to these three major components of a general motor, and are not described herein again.

As shown, each heat dissipating unit chamber accommodates a plurality of wire pellet heat dissipating members 30. The plurality of granular heat dissipation members 30 are arranged in a staggered manner, so that the heat dissipation unit chamber is not provided with excessive blank areas while leaving the moving space of the metal beads 32, and the utilization rate of the space is guaranteed.

Specifically, the side of the arc-shaped warping fin 42 away from the shell body 20 is coated with a light reflecting layer 43. When the motor 100 of the present embodiment is used outdoors, the reflective layer 43 helps to reflect sunlight irradiated onto the motor housing 10, thereby reducing the temperature rise caused by direct sunlight to some extent, which is beneficial to the temperature control of the motor 100.

Specifically, the motor housing 10 further includes a lug 50, and the lug 50 is disposed on the outer side of the housing body 20. When the size of the motor 100 is small, the position of the motor 100 can be shifted by lifting the lifting lug 50, and when the size of the motor 100 is large, the position of the motor 100 can be shifted by lifting the lifting lug 50 by a lifting device.

In the present embodiment, the metal beads 32 are copper beads. The copper beads have excellent thermal conductivity and are inexpensive compared with noble metals such as gold and silver.

Optionally, the particle size of the copper beads is 5-20 mm. Depending on the overall size of the motor 100, different sizes of copper beads may be selected to meet the use requirements, and generally, larger sizes of the motor 100 may use copper beads with larger particle sizes.

The wire 31 is a flexible wire, and a plurality of metal beads 32 are distributed at intervals on the wire 31. This facilitates the movement of the metal beads 32 in the heat radiating unit chamber.

The arrangement mode of the metal wires 31 can avoid the metal wires 31 from being twisted and stirred when the metal beads 32 move, and the respective normal work is ensured.

Specifically, the fin assembly further includes a connecting bar 44, and the plurality of warped fins 42 are connected in series by the connecting bar 44. Therefore, the integral structure of the radiating fin assembly is more stable, and the influence on work caused by damage is avoided.

Specifically, the flat fins 41 are semi-circular, two semi-circular flat fins 41 located in the same plane are spliced into a circle, and the semi-circular flat fins 41 are detachably inserted into the shell body 20.

The half-ring flat fin 41 has a notch to avoid interfering with the structure of the case body 20 itself and to avoid the stability of the case body 20 from being affected.

The principle of the embodiment is as follows:

when the motor 100 works, the generated heat is diffused outwards from the inside of the mounting cavity 21, and the copper beads can vibrate when vibration in working is transmitted to the copper beads, so that the copper beads bounce in the heat dissipation unit chamber, and the vibration of the whole motor 100 is weakened.

When the heat is diffused to the heat dissipation unit chamber, a part of the heat is absorbed by the copper beads with good heat conductivity, and the heat can be absorbed more and more quickly by the jumping of the copper beads and then transferred to the external flat fins 41 through the metal wires 31.

The metal wire 31 needs to be made of a material with good toughness and good fatigue resistance, so that a good service life can be ensured in a long-term use process.

When the copper beads absorb vibration, the gas can be disturbed in the heat dissipation unit chamber, so that the gas in the heat dissipation unit chamber flows to some extent, and the gas flows to enable the heat to be diffused more quickly compared with the static space.

In this manner, the heat generated by the operation of the motor 100 can be more and more quickly transferred to the external space for heat dissipation.

In addition, some of the flat fins 41 are in the heat dissipation chamber 22, which can also assist in transferring heat to the external space, and after the heat is transferred to the warped fins 42, the heat dissipation area is increased, which further increases the heat dissipation efficiency, so that the heat dissipation effect is better.

In addition, the warping fins 42 are provided with the reflective layer 43, so that heat brought by sunlight can be reduced under the working condition of direct sunlight, and certain benefit is brought to the guarantee of the heat dissipation effect.

The flat fins 41 can be detachably mounted in such a manner as to be easily replaced, and when a part of the flat fins 41 or the warped fins 42 to which the flat fins 41 are connected is damaged, the damaged part can be removed and then a new flat fin 41 can be mounted, so that the entire motor housing 10 does not need to be replaced with a great deal of trouble, which is preferable in terms of maintenance and replacement costs for later use.

It should be noted that, since the flat fins 41 are detachable, the wires 31 connected to the flat fins 41 are also detachably connected to the flat fins 41, so that the normal function of the detachable flat fins 41 can be ensured.

Of course, the flat fins 41 may also be fixedly connected, which is suitable for the working condition that is not easy to be impacted by the outside.

In summary, the motor 100 of the present invention can divide the heat dissipation unit chamber on the casing body 20, so that the pellet heat dissipation member 30 can have an accommodation space, the speed of absorbing heat is increased by the pellet heat dissipation member 30 cooperating with the vibration of the motor 100 during operation, and heat can be more quickly transferred to the external heat dissipation fin assembly, so as to increase the heat dissipation area, thereby increasing the heat dissipation efficiency, and ensuring that the stability of the motor 100 during operation is not affected by the heat dissipation problem.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric machine, comprising:

an end cap connected to one end of the housing body.

2. The motor according to claim 1, wherein the heat radiating unit chambers are ring-shaped, and each of the heat radiating unit chambers has a uniform size.

3. The electric machine according to claim 2, wherein each of the heat dissipating unit chambers accommodates a plurality of the wire-pellet heat dissipating members.

4. The electric machine of claim 1 wherein a side of the curved, warped fins remote from the housing body is coated with a light reflective layer.

5. The electric machine of claim 1, wherein the machine housing further comprises a lug disposed on an outer side of the housing body.

6. The machine of claim 1 wherein said metal beads are copper beads.

7. The electric machine according to claim 6, wherein the particle size of the copper beads is 5-20 mm.

8. The electric machine of claim 1 wherein said wire is a flexible wire and a plurality of said metallic beads are spaced apart on said wire.

9. The electric machine of claim 1 wherein said heat sink fin assembly further comprises a connecting bar through which a plurality of said warped fins are connected in series.

10. The motor of claim 1, wherein the flat fins are semi-circular, two semi-circular flat fins in the same plane are spliced into a circle, and the semi-circular flat fins are detachably inserted into the shell body.