Efficient heat dissipation type small and special motor

Abstract

The utility model relates to the technical field of small and special motors, and discloses an efficient heat dissipation type small and special motor which comprises a motor shell, a heat dissipation system is arranged in the motor shell, and an exhaust acceleration assembly used for accelerating heat dissipation gas is arranged at one end, close to the internal heat dissipation system, of the motor shell. An exhaust circulation cooling assembly is arranged in the exhaust speed increasing assembly, through the arrangement of the exhaust speed increasing assembly and the exhaust circulation cooling assembly, the effect that an arc-shaped groove in a gas collecting block and a speed increasing block form a Tesla valve in the working process of the small and special electric machine is achieved, and the purpose of increasing the speed of gas exhausted from the interior of the small and special electric machine is achieved; wherein the gas rapidly enters the cooling cylinder through the inclined hole, so that two air flows are formed in the cooling cylinder, and meanwhile, a vortex formed in the center of the cooling cylinder rises along the interior of the cooling cylinder and flows out along the flat exhaust hole, so that the effect of cooling the small and special electric machine is achieved, and the purpose of recycling is achieved while the gas is cooled.

Description

TECHNICAL FIELD

[0001] The utility model relates to micro motor technology field, concretely is a kind of high-efficiency heat dissipation type micro motor. BACKGROUND

[0002] Micro motor is a kind of small power motor with special performance and purpose, with specific function and performance requirement, motor for various different occasions, it is an important branch in motor field, covers multiple types and specifications, mainly used to realize electromechanical energy conversion or signal conversion function.

[0003] Current micro motor on the market has many drawbacks in heat dissipation and gas recycling, for example, most micro motors adopt traditional heat dissipation mode, such as natural heat dissipation or simple cooling fin, fan-assisted heat dissipation, natural heat dissipation efficiency is extremely low, when motor runs for a long time under high load, heat accumulation is serious, which easily leads to motor overheating, accelerates the aging of internal insulation material of motor, shortens the service life of motor, and affects its reliability and stability. Even if cooling fin and fan are used, the heat dissipation effect is not ideal, and the heat at key positions cannot be accurately and quickly discharged, resulting in local overheating and affecting the consistency of motor performance.

[0004] In addition, when the traditional micro motor runs, the hot air generated inside is usually directly discharged to the external environment, without effective recovery and recycling of the gas, which not only causes energy waste and increases operating cost, but also causes thermal pollution to the surrounding environment, especially in places with strict environmental requirements, such as electronic equipment manufacturing workshop, medical operating room, etc., heat discharge will interfere with the temperature and humidity control of the environment, and affect the normal operation of the product quality and medical equipment.

[0005] Therefore, a high-efficiency heat dissipation type micro motor is provided. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a kind of high-efficiency heat dissipation type micro motor to solve the problems raised in the above background technology.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of high-efficiency heat dissipation type micro motor, including motor shell, the inside of the motor shell is provided with heat dissipation system, the one end of the motor shell is close to internal heat dissipation system and is provided with exhaust speed-up assembly for the speed-up of heat dissipation gas, the inside of the exhaust speed-up assembly is provided with exhaust circulation cooling assembly.

[0008] Preferably, the exhaust speed-up assembly includes a connecting block, the connecting block is fixedly connected to the one end of the motor shell close to the internal heat dissipation system, the inside of the connecting block is provided with a gas collection block, the inside of the gas collection block is provided with an arc-shaped groove, and the inside of the gas collection block is equidistantly arranged with speed-up blocks.

[0009] Preferably, the exhaust gas circulation cooling assembly comprises a double-layer positioning ring fixedly connected to the inside of the connecting block, and the inside of the double-layer positioning ring is fixedly connected with a cooling cylinder, and the inside of the cooling cylinder is annularly provided with an inclined hole.

[0010] Preferably, the exhaust gas circulation cooling assembly further comprises a flat exhaust hole sleeved at the top of the cooling cylinder, and the bottom of the cooling cylinder is fixedly connected with a gas blocking plug.

[0011] Preferably, the gas inlet of the gas collecting block is arranged at one end close to the internal heat dissipation system of the motor shell, and the gas outlet of the gas collecting block is arranged at one end close to the connecting block.

[0012] Preferably, the flat exhaust hole is arranged above the motor shell, and there is a gap between the gas blocking plug and the cooling cylinder.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. By arranging the exhaust gas speed increasing assembly and the exhaust gas circulation cooling assembly, the arc-shaped groove in the gas collecting block and the speed increasing block form a Tesla valve during the working process of the micro motor, so that the gas discharged from the micro motor is speeded up,

[0015] The gas quickly enters the inside of the cooling cylinder through the inclined hole, so that two gas flows are formed in the inside of the cooling cylinder, and the gas flow close to the inner wall of the cooling cylinder is quickly consumed due to heat consumption during the flowing process, and the vortex formed in the center of the cooling cylinder is upward along the inside of the cooling cylinder and flows out through the flat exhaust hole, so that the micro motor is cooled, the gas is cooled at the same time, and the purpose of recycling is achieved.

[0016] The traditional micro motor usually relies on natural heat dissipation or simple heat dissipation fins, and the heat dissipation efficiency is limited, and the traditional micro motor usually directly discharges the internal hot air, and cannot realize the recycling of the gas. The above structure speeds up the gas through the Tesla valve effect, quickly takes out the heat in the motor, forms two gas flows in the cooling cylinder, uses the rapid heat consumption of the gas flow close to the wall and the upward exhaust of the central vortex, greatly improves the heat dissipation efficiency, and makes the gas circulate after being cooled, reduces the consumption of the gas, reduces the energy cost, improves the energy utilization efficiency, meets the requirements of energy saving and environmental protection. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the overall device position relationship in the utility model;

[0018] Figure 2 It is a sectional view of the overall device in the utility model;

[0019] Figure 3 For the utility model Figure 2 The structure of A in the middle is enlarged view;

[0020] Figure 4 For the utility model, the position relation of the exhaust circulating cooling assembly is shown in the schematic view.

[0021] Reference signs: 11, motor housing;

[0022] The exhaust speed increasing assembly comprises a connecting block 21, a gas gathering block 22, an arc-shaped groove 23 and a speed increasing block 24.

[0023] The exhaust circulating cooling assembly comprises a double-layer positioning ring 31, a cooling cylinder 32, an inclined hole 33, a flat exhaust hole 34 and a gas blocking plug 35. Specific implementation

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1 to 4 The utility model provides an embodiment: a high -efficient heat dissipation type micro motor, including motor housing 11, the inside of motor housing 11 is provided with heat dissipation system, and motor housing 11 is close to the inside heat dissipation system one end and is provided with the exhaust speed increasing assembly for increasing the speed of exhaust gas, and the inside of exhaust speed increasing assembly is provided with exhaust circulating cooling assembly.

[0026] The exhaust speed increasing assembly comprises a connecting block 21, a gas gathering block 22, an arc-shaped groove 23 and a speed increasing block 24.

[0027] The exhaust circulating cooling assembly comprises a double-layer positioning ring 31, a cooling cylinder 32, an inclined hole 33, a flat exhaust hole 34 and a gas blocking plug 35.

[0028] The exhaust circulating cooling assembly further comprises a flat exhaust hole 34, which is sleeved on the top of the cooling cylinder 32, and the bottom of the cooling cylinder 32 is fixedly connected with the gas blocking plug 35.

[0029] The gas inlet of the gas collecting block 22 is arranged at one end close to the internal heat dissipation system of the motor shell 11, and the gas outlet of the gas collecting block 22 is arranged at one end close to the connecting block 21, so as to accelerate the discharged gas.

[0030] The flat exhaust hole 34 is arranged above the motor shell 11, and the gas block 35 has a gap between the cooling cylinder 32, so that the cooled gas can achieve the purpose of cooling the motor shell 11.

[0031] Working principle:

[0032] When working, heat is generated in the working process of the motor shell 11, which needs to be dissipated through the internal heat dissipation system. The heat dissipated by the heat dissipation system first enters the inside of the gas collecting block 22, and then the gas slides along the inside of the arc-shaped groove 23. The speed-increasing blocks 24 arranged equidistantly in the gas collecting block 22 first divide the gas into two streams, the main stream and the branch stream. The main stream gas flows away from the motor shell 11 along the center of the gas collecting block 22, and the branch stream gas flows along the arc-shaped groove 23 and then accelerates along the outer wall of the speed-increasing block 24 to join the main stream;

[0033] After the above steps are repeated, the branch stream gas repeatedly joined into the main stream is accelerated as a whole, so that the gas flows into the connecting block 21 and the double-layer positioning ring 31 along the gas collecting block 22;

[0034] The gas flowing into the connecting block 21 and the double-layer positioning ring 31 first flows along the outer wall of the cooling cylinder 32, and then flows into the inside of the cooling cylinder 32 along the annular inclined hole 33. At this time, two vortexes are formed in the inside of the cooling cylinder 32. The gas flow close to the inner wall of the cooling cylinder 32 is consumed quickly due to heat, and finally flows out between the gas block 35 and the cooling cylinder 32, while the vortex formed in the center of the cooling cylinder 32 rises along the inside of the cooling cylinder 32 and flows out along the flat exhaust hole 34 after being cooled;

[0035] The flat exhaust hole 34 is arranged above the motor shell 11, so as to achieve the purpose of cooling the micro motor, so that the gas is cooled and recycled, the consumption of the gas is reduced, the energy cost is reduced, the energy utilization efficiency is improved, and the requirements of energy saving and environmental protection are met.

[0036] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and implementations, it is to be understood that the terminology used is for the purpose of descriptive clarity and that it is intended to be limited only by the words recited in the appended claims. The scope of the present application shall be limited only by the claims.

[0037] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat-dissipation type micro motor, comprising a motor housing (11), the inside of the motor housing (11) is provided with a heat dissipation system, characterized in that: The motor shell (11) is provided with an exhaust speed increasing assembly for increasing the speed of the heat dissipation gas near one end of the internal heat dissipation system, and the exhaust speed increasing assembly is internally provided with an exhaust circulation cooling assembly.

2. A micro electric machine of high efficiency heat dissipation type according to claim 1, characterized in that: The exhaust speed increasing assembly comprises a connecting block (21) fixedly connected to the motor shell (11) near one end of the internal heat dissipation system, the connecting block (21) is internally provided with a gas collecting block (22), the gas collecting block (22) is internally provided with an arc-shaped groove (23), and the gas collecting block (22) is internally arranged with speed increasing blocks (24) at equal intervals.

3. A micro electric machine with high heat dissipation according to claim 2, characterized in that: The exhaust circulation cooling assembly comprises a double-layer positioning ring (31) fixedly connected to the inside of the connecting block (21), the inner side of the double-layer positioning ring (31) is fixedly connected with a cooling cylinder (32), and the inside of the cooling cylinder (32) is annularly provided with an inclined hole (33).

4. A micro electric machine of high efficiency heat dissipation type as claimed in claim 3, characterized in that: The exhaust circulation cooling assembly further comprises a flat exhaust hole (34) sleeved on the top of the cooling cylinder (32), and the bottom of the cooling cylinder (32) is fixedly connected with a gas blocking plug (35).

5. A micro electric machine with high heat dissipation according to claim 2, characterized in that: The gas inlet of the gas collecting block (22) is arranged near one end of the internal heat dissipation system of the motor shell (11), and the gas outlet of the gas collecting block (22) is arranged near one end of the connecting block (21).

6. A micro electric machine with high heat dissipation according to claim 4, characterized in that: The flat exhaust hole (34) is arranged above the motor shell (11), and there is a gap between the gas blocking plug (35) and the cooling cylinder (32).

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