CN215733819U

CN215733819U - Easy dismouting type motor heat dissipation mechanism

Info

Publication number: CN215733819U
Application number: CN202121415996.4U
Authority: CN
Inventors: 刘通通; 王程杰; 糜周; 李宏
Original assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Current assignee: Zhejiang Lera New Energy Power Technology Co Ltd
Priority date: 2021-06-24
Filing date: 2021-06-24
Publication date: 2022-02-01
Anticipated expiration: 2031-06-24

Abstract

The utility model relates to the field of electric tools, and discloses an easily-assembled and disassembled motor heat dissipation mechanism which is characterized by comprising a shell, wherein a motor is arranged in the shell, a first clamping part is arranged on the inner side surface of the shell, an upper nest shell is abutted to an end cover of the motor, the first clamping part is used for clamping the upper nest shell, the upper nest shell and the shell, and the upper nest shell and the lower nest shell are fixedly connected in a clamping manner respectively.

Description

Easy dismouting type motor heat dissipation mechanism

Technical Field

The utility model relates to the field of electric tools, in particular to an easily-assembled and disassembled motor heat dissipation mechanism.

Background

When the brush cutter works, the brush cutter is driven by the motor, the motor is arranged in the shell, a large amount of heat can be generated in the working process of the motor, the temperature can be increased due to the retention of the heat, so that the motor cannot work normally, and the fan blades are connected to the motor, so that the fan blades rotate simultaneously to bring the heat out of the shell when the motor works;

set up a plurality of casings between the end cover of motor and shell, lead to the air current through these casings to make the air current spill from the shell, in prior art, mutual fixed connection between these casings realizes through bolt etc. leads to these casings at the in-process of dismouting complicated, the time spent is longer.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an easy-to-assemble and easy-to-disassemble motor heat dissipation mechanism, wherein an upper nest shell and a lower nest shell are easy to disassemble and assemble.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an easy dismouting type motor heat dissipation mechanism, includes the inside shell that is provided with the motor, the shell medial surface is provided with first joint portion, the butt has last nest shell on the end cover of motor, first joint portion is used for the joint go up nest shell, it has nest shell down to go up the butt on the nest shell, go up nest shell with be provided with second joint portion down between the nest shell, so that go up nest shell with nest shell joint down, it sets up outside the motor fan blade to go up nest shell circumference, it is outside around the motor fan blade to be provided with in the nest shell to the wind-guiding face that the arc set up, the butt has the fan housing down on the nest shell, the fan housing with can dismantle the connection between the shell.

As a further improvement of the present invention, the first clamping portion includes a first clamping groove disposed in the housing, the upper socket housing is fixedly connected with a first clamping block, and the first clamping block is adapted to the first clamping groove.

As a further improvement of the present invention, the second clamping portion includes two second clamping blocks fixedly connected to the upper socket shell, the two second clamping blocks are arranged oppositely, the lower socket shell is provided with two second clamping grooves, and the two second clamping grooves correspond to the second clamping blocks one to one and are matched with each other.

As a further improvement of the utility model, a first step is arranged on one side of the upper socket shell close to the lower socket shell, a second step is arranged on one side of the lower socket shell close to the upper socket shell, and the first step is matched with the second step.

As a further improvement of the utility model, a third step is arranged on one side of the lower socket shell close to the fan housing, a fourth step is arranged on one side of the fan housing close to the lower socket shell, and the third step is matched with the fourth step.

As a further improvement of the utility model, an air guide cavity is formed between the lower nest shell and the upper nest shell and used for guiding air flow to the fan cover.

As a further improvement of the present invention, the air guiding cavity includes an air inlet and an air outlet, and an inner diameter of the air guiding cavity gradually increases from the air inlet to the air outlet.

As a further improvement of the present invention, a transition section is disposed between the upper socket shell and the lower socket shell, the transition section is located at the air outlet, and the transition section is configured to change a flow direction of the air flow, so that the air flow flows to the fan housing.

As a further development of the utility model, the transition section comprises a guide surface which is arranged obliquely to the wind shield.

As a further improvement of the present invention, the diameter of the transition section gradually decreases from the air outlet to the guide surface.

The utility model has the beneficial effects that: (1) the upper nest shell and the lower nest shell are fixedly connected in a clamping manner respectively, and compared with the fixation through standard parts such as bolts, nuts and the like, the installation and the disassembly are quicker and more convenient;

(2) by arranging the first step and the second step, the sealing performance between the upper nest shell and the lower nest shell is improved, and the heat dissipation airflow is prevented from leaking from the space between the upper nest shell and the lower nest shell;

(3) by arranging the third step and the fourth step, the sealing performance between the lower nest shell and the fan cover is improved, and the heat-radiating airflow is prevented from leaking out from the space between the lower nest shell and the fan cover;

(4) an air guide cavity is formed between the lower nest shell and the upper nest shell and used for guiding airflow to the fan cover and preventing the airflow from rotating between the upper nest shell and the lower nest shell to form turbulent flow so as to influence the heat dissipation effect;

(5) be provided with the changeover portion in the nest shell down, change the flow direction of air current, ensure the stable flow direction fan housing department of air current ability.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the present invention in a configuration facing the lower housing;

FIG. 3 is a schematic view of the present invention in a configuration facing the upper housing;

FIG. 4 is a schematic view of the structure of the lower housing of the present invention;

fig. 5 is a schematic structural view of the wind shield according to the present invention.

Reference numerals: 1. a housing; 11. a first card slot; 2. mounting a nest shell; 21. a first clamping block; 22. a second fixture block; 23. a first step; 3. a lower nest shell; 31. a second card slot; 32. a second step; 33. a third step; 4. a fourth step; 5. a fan housing; 6. a wind guide cavity; 61. an air inlet; 62. an air outlet; 7. a transition section; 71. a guide surface.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 5, the easy-to-mount and easy-to-dismount motor heat dissipation mechanism of the embodiment includes a housing 1 having a motor therein, a first clamping portion is disposed on an inner side surface of the housing 1, an upper housing 2 is abutted to an end cover of the motor, the first clamping portion is used for clamping the upper housing 2, a first step 23 is disposed on one side of the upper housing 2 close to a lower housing 3, a second step 32 is disposed on one side of the lower housing 3 close to the upper housing 2, the first step 23 is adapted to the second step 32, the first step 23 and the second step 32 are disposed to increase the sealing performance between the upper housing 2 and the lower housing 3, so as to prevent heat dissipation airflow from leaking out between the upper housing 2 and the lower housing 3, the lower housing 3 is abutted to the upper housing 2, the second clamping portion is disposed between the upper housing 2 and the lower housing 3, and the upper housing is circumferentially disposed outside the motor blade, the upper nest shell is internally provided with an air guide surface which is arranged around the outside of a motor blade and is arc-shaped, the lower nest shell 3 is abutted with an air hood 5, the air hood 5 is detachably connected with the shell 1, one side of the lower nest shell 3, which is close to the air hood 5, is provided with a third step 33, one side of the air hood 5, which is close to the lower nest shell 3, is provided with a fourth step 4, the third step 33 is matched with the fourth step 4, the third step 33 and the fourth step 4 are arranged, the sealing property between the lower nest shell 3 and the air hood 5 is improved, the heat dissipation air flow is prevented from leaking from between the lower nest shell 3 and the air hood 5, the first clamping part and the second clamping part are arranged, the upper nest shell 2 and the lower nest shell 3 are fixed in a clamping manner, compared with the fixation through standard components such as bolts and nuts, the installation and the disassembly are quicker and more convenient, the assembly and disassembly are easy to be carried out, an air guide cavity 6 is formed between the lower nest shell 3 and the upper nest shell 2, the fan housing is used for guiding air flow to the fan housing 5, and the air flow is prevented from rotating between the upper nest shell 2 and the lower nest shell 3 to form turbulent flow and influence the heat dissipation effect. The air guide cavity 6 comprises an air inlet 61 and an air outlet 62, and the inner diameter of the air guide cavity 6 gradually increases from the air inlet 61 to the air outlet 62, so that the flow speed of the air flow is reduced, and the adjustment of the transition section 7 on the air flow speed is facilitated.

Referring to fig. 2 and 3, the first clamping portion includes a first clamping groove 11 disposed in the housing 1, a first clamping block 21 is fixedly connected to the upper housing 2, and the first clamping block 21 is matched with the first clamping groove 11. The second joint portion includes two second fixture blocks 22 of fixed connection on last nest shell 2, and two second fixture blocks 22 set up relatively, are provided with two second draw-in grooves 31 on the nest shell 3 down, and two second draw-in grooves 31 and second fixture block 22 one-to-one to the looks adaptation has formed the buckle respectively between first fixture block 21 and the first draw-in groove 11, between second fixture block 22 and the second draw-in groove 31, the simple structure of buckle, and easily dismouting, can also connect through other plastics buckle forms.

Referring to fig. 2 and 3, a transition section 7 is arranged between the upper nest shell 2 and the lower nest shell 3, the transition section 7 is located at the air outlet 62, the transition section 7 is used for changing the flow direction of the air flow, so that the air flow flows to the fan housing 5, the transition section 7 comprises a guide surface 71, the guide surface 71 is obliquely arranged towards the fan housing 5, the position of one end, close to the motor, of the guide surface 71 is lower than the position of one end, close to the fan housing 5, of the guide surface 71, and the air flow is ensured to flow towards the fan housing 5 after passing through the guide surface 71. The diameter of the transition section 7 gradually decreases from the air outlet 62 to the guide surface 71, so that when the air flow flows at the transition section 7, the flow velocity of the air flow increases, and the air flow flows out of the fan housing 5 more quickly.

The working principle is as follows: during the installation, go up nest shell 2 and the end cover looks butt of motor, first step 23 and the mutual gomphosis of second step 32, go into first draw-in groove 11 with first fixture block 21 card, accomplish the installation of going up nest shell 2, lower nest shell 3 offsets with last nest shell 2, third step 33 and the mutual gomphosis of fourth step 4, and go into corresponding second draw-in groove 31 with second fixture block 22 card, accomplish the installation of nest shell 3 down, at last offset fan housing 5 and nest shell 3 down, fan housing 5 offsets with shell 1 simultaneously, accomplish fixedly through the bolt.

The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. The utility model provides an easy dismouting type motor heat dissipation mechanism, includes inside shell (1) that is provided with the motor, its characterized in that: shell (1) medial surface is provided with first joint portion, butt joint has last nest shell (2) on the end cover of motor, first joint portion is used for the joint go up nest shell (2), it has nest shell (3) down to go up the butt on nest shell (2), go up nest shell (2) with be provided with second joint portion down between nest shell (3), so that go up nest shell (2) with nest shell (3) joint down, it sets up outside the motor fan blade to go up nest shell (2) circumference, it is outside around the motor fan blade to be provided with in nest shell (2) to the wind-guiding face that the arc set up, butt joint has fan housing (5) on nest shell (3) down, fan housing (5) with can dismantle the connection between shell (1).

2. The easy-to-mount and dismount motor heat dissipation mechanism of claim 1, wherein: the first clamping portion comprises a first clamping groove (11) formed in the shell (1), a first clamping block (21) is fixedly connected to the upper nest shell (2), and the first clamping block (21) is matched with the first clamping groove (11).

3. The easy-to-mount and dismount motor heat dissipation mechanism of claim 2, wherein: the second clamping portion comprises two second clamping blocks (22) fixedly connected to the upper nest shell (2), the two second clamping blocks (22) are arranged oppositely, two second clamping grooves (31) are formed in the lower nest shell (3), and the two second clamping grooves (31) correspond to the second clamping blocks (22) in a one-to-one mode and are matched with each other.

4. The easy-to-mount and dismount motor heat dissipation mechanism of claim 1, wherein: go up nest shell (2) be close to one side of lower nest shell (3) is provided with first step (23), lower nest shell (3) be close to one side of going up nest shell (2) is provided with second step (32), first step (23) with second step (32) looks adaptation.

5. The easy-to-mount and dismount motor heat dissipation mechanism of claim 4, wherein: lower nest shell (3) are close to one side of fan housing (5) is provided with third step (33), fan housing (5) are close to one side of lower nest shell (3) is provided with fourth step (4), third step (33) with fourth step (4) looks adaptation.

6. The easy-to-mount and dismount motor heat dissipation mechanism of claim 5, wherein: an air guide cavity (6) is formed between the lower nest shell (3) and the upper nest shell (2) and used for guiding air flow to the fan cover (5).

7. The easy-to-mount and dismount motor heat dissipation mechanism of claim 6, wherein: the air guide cavity (6) comprises an air inlet (61) and an air outlet (62), and the inner diameter of the air guide cavity (6) is gradually increased from the air inlet (61) to the air outlet (62).

8. The easy-to-mount and dismount motor heat dissipation mechanism of claim 7, wherein: go up nest shell (2) with be provided with changeover portion (7) between nest shell (3) down, changeover portion (7) are located air outlet (62) department, changeover portion (7) are used for changing the flow direction of air current, so that the air current flow direction fan housing (5).

9. The easy-to-mount and dismount motor heat dissipation mechanism of claim 8, wherein: the transition section (7) comprises a guide surface (71), and the guide surface (71) is obliquely arranged towards the direction of the fan cover (5).

10. The easy-to-mount and dismount motor heat dissipation mechanism of claim 9, wherein: the diameter of the transition section (7) is gradually reduced from the air outlet (62) to the guide surface (71).