CN211296474U - High-efficiency heat dissipation type permanent magnet motor shell - Google Patents

Abstract

The utility model discloses a high-efficiency heat-dissipating permanent magnet motor casing, which relates to the technical field of motors. The utility model comprises an outer casing and a fan. A front end cover and an inner end cover are respectively fixed on both sides of the outer casing. The peripheral side of the outer casing is fan-shaped and fixed with a number of heat dissipation fins. The top of the outer casing is fixed with a heat dissipation box. The two ends of the box are respectively connected with an air outlet pipe and an air inlet pipe, and one end of the air outlet pipe and the air inlet pipe are both connected with an air collecting pipe. The outer casing is fixed and communicated, and the fan is fixedly installed inside the heat dissipation box through the bracket. The utility model can circulate the hot air inside the motor into the heat dissipation box through the ventilation cavity through the air collecting pipe, the heat dissipation box and the fan.

Description

Efficient heat dissipation permanent magnet motor housing

technical field

The utility model belongs to the technical field of motors, in particular to a permanent magnet motor casing.

Background technique

Motor refers to an electromagnetic device that realizes the conversion or transfer of electric energy according to the law of electromagnetic induction. The motor is represented by the letter M (the old standard is D) in the circuit. Its main function is to generate driving torque, as an electrical appliance or various The mechanical power source, the generator is represented by the letter G in the circuit, and its main function is to convert mechanical energy into electrical energy.

Permanent magnet motors are widely used in modern industry, agriculture and even commercial fields. With the advancement of technology, the motors are constantly updated. However, the current permanent magnet motors still have the problem of poor heat dissipation. The existing permanent magnet motors generally Mainly rely on the heat sink on the motor shell to increase the heat dissipation area, so as to achieve the effect of heat dissipation, but this heat dissipation method cannot dissipate the heat generated by the motor in time and quickly when the motor operates at rated power for a long time, causing the inside of the motor. Accumulation of heat can easily cause the motor to burn out.

In this regard, the utility model designs a high-efficiency heat dissipation permanent magnet motor housing to solve the above problems.

Utility model content

The purpose of the utility model is to provide a high-efficiency heat dissipation permanent magnet motor casing, through which the hot air flow inside the motor can be circulated into the heat dissipation box through the ventilation cavity through the air collecting pipe, the heat dissipation box and the fan, and the heat dissipation box can carry out the hot air flow. Heat dissipation and cooling, the heat dissipation fins can play the role of auxiliary heat dissipation, which solves the problem that the existing motor casing cannot dissipate the heat generated by the motor in a timely and fast manner, resulting in heat accumulation inside the motor, which is easy to cause the motor to burn out.

In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions:

The utility model relates to a high-efficiency heat-dissipating permanent magnet motor casing, comprising an outer casing and a fan, a rotor and a stator iron core are arranged inside the outer casing, and a rotating shaft is arranged inside the rotor;

The front end cover and the inner end cover are respectively fixed on both sides of the outer casing, the peripheral side of the outer casing is fan-shaped and fixed with a number of cooling fins, and the inner side of the outer casing is fan-shaped and fixed with four groups of fixing bars , a mounting plate is fixed on both sides of each set of fixing bars, and a heat dissipation box is fixed on the top of the outer casing;

Two ends of the heat dissipation box are respectively fixed with an air outlet pipe and an air inlet pipe, and one end of the air outlet pipe and the air inlet pipe are both fixed with an air collecting pipe, and the inner side of the air collecting pipe is fixed and connected with several ventilation pipes. One end of the ventilation pipe is in fixed communication with the outer casing, and the fan is fixedly installed inside the heat dissipation box through a bracket;

Four ventilation cavities are formed between the inner side surface of the outer casing and the stator iron core.

Further, an installation groove is formed in the interior of each group of the fixing bars, and four convex blocks are fixedly fixed on the peripheral side surface of the stator iron core in a fan shape, and the convex blocks are located inside the installation groove.

Further, the air collecting pipe is an annular circular pipe, and the fan is electrically connected to the internal wiring of the motor junction box.

Further, both ends of the rotating shaft penetrate through the front end cover and the inner end cover respectively.

Further, the outer casing and the radiating fins are all made of aluminum alloy, and the ventilation duct, the air collecting duct, the air inlet duct, the air outlet duct and the heat dissipation box are all made of metal copper.

The utility model has the following beneficial effects: the utility model can circulate the hot air inside the motor through the ventilation cavity into the heat dissipation box through the air collecting pipe, the cooling box and the fan. The air duct, the air outlet duct and the heat dissipation box dissipate and cool the hot air, and the heat dissipation fins can play an auxiliary role in heat dissipation.

Of course, any product implementing the present invention does not necessarily need to simultaneously achieve all of the above-mentioned advantages.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the structural representation of the high-efficiency heat-dissipating permanent magnet motor casing of the present invention;

2 is a schematic diagram of the internal structure of the utility model, the rotor and the stator core during assembly;

Fig. 3 is the sectional view of the utility model, the rotor and the stator core when assembled;

FIG. 4 is a schematic diagram of the structure of the outer casing of the present invention;

In the accompanying drawings, the list of components represented by each number is as follows:

1-Outer body, 2-Front end cover, 3-Inner end cover, 4-Rotating shaft, 5-Heat dissipation box, 6-Air outlet pipe, 7-Air collecting pipe, 8-Ventilation pipe, 9-Rotor, 10-Ventilation cavity , 11-fan, 12-fixed strip, 13-fixed plate, 14-cooling fin, 15-air inlet pipe, 16-stator iron core.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIGS. 1-4 , the present invention is a high-efficiency heat dissipation permanent magnet motor casing, including an outer casing 1 and a fan 11 , a rotor 9 and a stator iron core 16 are arranged inside the outer casing 1 , and a rotor 9 is arranged inside Spindle 4;

Both sides of the outer casing 1 are respectively fixed with a front end cover 2 and an inner end cover 3, the peripheral side of the outer casing 1 is fan-shaped and fixed with a number of cooling fins 14, and the inner side of the outer casing 1 is fan-shaped and fixed with four groups of fixing bars 12. A mounting plate is fixed on both sides of each set of fixing bars 12, and a heat dissipation box 5 is fixed on the top of the outer casing 1;

Both ends of the heat dissipation box 5 are respectively fixed with an air outlet pipe 6 and an air inlet pipe 15, and one end of the air outlet pipe 6 and the air inlet pipe 15 are both fixed with an air collecting pipe 7, and the inner side of the air collecting pipe 7 is fixed and connected with several The ventilation pipe 8, one end of the ventilation pipe 8 is in fixed communication with the outer casing 1, and the fan 11 is fixedly installed inside the heat dissipation box 5 through a bracket.

Four ventilation cavities 10 are formed between the inner side surface of the outer casing 1 and the stator iron core 16 .

As shown in FIG. 1 , the air collecting pipe 7 is an annular circular pipe, the fan 11 is electrically connected with the internal wiring of the motor junction box, the two ends of the rotating shaft 4 respectively penetrate the front end cover 2 and the inner end cover 3, the outer casing 1 and the heat dissipation The fins 14 are all aluminum alloy components, and the ventilation duct 8 , the air collecting duct 7 , the air inlet duct 15 , the air outlet duct 6 and the heat dissipation box 5 are all components made of metal copper.

As shown in FIG. 2 , an installation slot is formed inside each group of fixing bars 12 , and four projections are fixed on the peripheral side of the stator core 16 in a fan shape, and the projections are located inside the installation slot.

A specific application of this embodiment is: after the motor is started, since the fan 11 is electrically connected to the internal wiring of the motor junction box, the fan 11 will start together with the motor, and under the action of the fan 11, the hot air in the ventilation cavity 10 It will be collected into the air collection pipe 7 through the ventilation pipe 8, and finally enter the heat dissipation box 5 through the air inlet pipe 15. It flows back to the ventilation cavity 10, and in this way, the ventilation pipe 8, the air collecting pipe 7, the air inlet pipe 15, the air outlet pipe 6 and the heat dissipation box 5 made of metal copper radiate and cool the hot air, and the heat dissipation fins 14 can play an auxiliary role in heat dissipation. It can realize the efficient and rapid heat dissipation of the motor.

In the description of this specification, description with reference to the terms "one embodiment", "example", "specific example", etc. means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in the present invention. in at least one embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details, nor do they limit the invention to only the described embodiments. Obviously, many modifications and variations are possible in light of the content of this specification. This specification selects and describes these embodiments in order to better explain the principle and practical application of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims (5)

1. The utility model provides a high-efficient heat dissipation formula permanent magnet motor shell, includes shell body (1), the inside of shell body (1) is equipped with rotor (9) and stator core (16), the inside of rotor (9) is equipped with pivot (4), its characterized in that: also comprises a fan (11);

a front end cover (2) and an inner end cover (3) are fixedly connected to two sides of the outer shell (1) respectively, a plurality of radiating fins (14) are fixedly connected to the peripheral side surface of the outer shell (1) in a fan shape, four groups of fixing strips (12) are fixedly connected to the inner side surface of the outer shell (1) in a fan shape, an installation plate is fixedly connected to two sides of each group of fixing strips (12), and a radiating box (5) is fixedly connected to the top of the outer shell (1);

an air outlet pipe (6) and an air inlet pipe (15) are respectively fixedly communicated with two ends of the heat dissipation box (5), an air collecting pipe (7) is fixedly communicated with one ends of the air outlet pipe (6) and the air inlet pipe (15), a plurality of ventilation pipes (8) are fixedly communicated with the inner side of the air collecting pipe (7), one ends of the ventilation pipes (8) are fixedly communicated with the outer shell (1), and the fan (11) is fixedly arranged in the heat dissipation box (5) through a support;

four ventilation cavities (10) are formed between the inner side face of the outer shell (1) and the stator iron core (16).

2. The casing of the efficient heat dissipation type permanent magnet motor according to claim 1, wherein a mounting groove is formed inside each group of the fixing bars (12), four convex blocks are fixedly connected to the circumferential side surface of the stator core (16) in a fan shape, and the convex blocks are located inside the mounting groove.

3. The casing of the efficient heat dissipation type permanent magnet motor as claimed in claim 1, wherein the air collection pipe (7) is an annular circular pipe, and the fan (11) is electrically connected with an internal wiring of a motor junction box.

4. A casing of a high efficiency heat dissipation type permanent magnet motor according to claim 1, wherein two ends of the rotating shaft (4) respectively penetrate through the front end cover (2) and the inner end cover (3).

5. The efficient heat dissipation type permanent magnet motor shell according to claim 1, wherein the shell body (1) and the heat dissipation fins (14) are both members made of aluminum alloy, and the ventilation pipe (8), the air collection pipe (7), the air inlet pipe (15), the air outlet pipe (6) and the heat dissipation box (5) are all members made of metal copper materials.

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