CN218325387U

CN218325387U - Motor built-in driving type fan

Info

Publication number: CN218325387U
Application number: CN202222336025.1U
Authority: CN
Inventors: 唐灵芝; 黄宏; 孟湋淇
Original assignee: Hunan Tianyan Machinery Co Ltd
Current assignee: Hunan Tianyan Machinery Co Ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-01-17
Anticipated expiration: 2032-09-02

Abstract

The built-in drive type fan of motor relates to electric fan technical field, and it includes fixed cover and sets up the motor at fixed cover inside along fixed cover axial, quiet impeller is installed to the outer peripheral face interference fit of motor, the internal face interference fit of quiet impeller and fixed cover, the rear end demountable installation of fixed cover has the support, the rear end and the support of motor pass through motor bolt fastening connection, the support is including the outer ring body that is used for being connected with fixed cover and the inner ring body that is used for being connected with the motor, connect through a plurality of strengthening ribs between outer ring body and the inner ring body, the output shaft of motor stretches out and coaxial fixedly connected with movable impeller from the front end of motor, movable impeller is located fixed cover. The utility model discloses compact structure and radiating effect are good.

Description

Motor built-in driving type fan

Technical Field

The utility model belongs to the technical field of the electric fan technique and specifically relates to indicate a motor embeds drive formula fan.

Background

In some utility vehicles, there is a need for unmanned operation. The cooling system fan in this kind of special vehicle provides cooling air for radiator, intercooler, but because the product has strict requirements for volume and weight, the existing engine drives and passes the way of pulley drive because the structure is complicated and can't meet the requirement of product, therefore need to drive the fan directly through adopting the electric drive form. But at present, the structure which can well realize the assembly problem of the motor and the fan is not provided, and the problem of self heat dissipation of the motor can not be well solved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a built-in drive formula fan of motor, its compact structure and radiating effect are good.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a built-in drive formula fan of motor, includes fixed cover and sets up the motor at fixed cover inside along fixed cover axial, quiet impeller is installed to the outer peripheral face interference fit of motor, the internal face interference fit of quiet impeller and fixed cover, the rear end demountable installation of fixed cover has the support, the rear end and the support of motor pass through motor bolt fastening connection, the support is including the outer ring body that is used for being connected with fixed cover and the inner ring body that is used for being connected with the motor, connect through a plurality of strengthening ribs between outer ring body and the inner ring body, the output shaft of motor stretches out and coaxial fixedly connected with movable impeller from the front end of motor, movable impeller is located fixed cover.

Preferably, the width of the reinforcing rib is gradually reduced from front to back.

More preferably, the front end face of the inner ring body is provided with a positioning step groove for clamping the rear end of the motor.

More preferably, the depth of the positioning step groove is 5mm.

More preferably, the number of the reinforcing ribs is four, and the four reinforcing ribs are uniformly arranged between the outer ring body and the inner ring body at intervals.

More preferably, the stator vane wheel comprises a wheel cylinder, outer blades arranged at intervals along the outer circumferential surface of the wheel cylinder in an annular mode and used for being in interference fit with the inner wall surface of the fixed sleeve, and support ribs arranged at intervals along the inner circumferential surface of the wheel cylinder in an annular mode and used for being in interference fit with the outer wall surface of the motor.

More preferably, the movable impeller is connected with an output shaft of the motor through an impeller bolt, and a fixed gasket and a spring gasket are further arranged between the head of the impeller bolt and the movable impeller.

More preferably, the bracket is made of an aluminum alloy material

The motor is pressed into the fixed sleeve by taking the static impeller as a middle piece, the motor and the fixed sleeve are connected by the support, the motor can be firmly installed in the fixed sleeve and assembled with the dynamic impeller, the whole structure is very compact, and the periphery and the rear end of the motor can be smoothly radiated.

Drawings

Fig. 1 is a rear schematic view of an overall structure in an embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic sectional view taken along the direction A-A in FIG. 1

FIG. 3 is a rear side view of the bracket according to the embodiment;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3;

FIG. 5 is a cross-sectional view schematically illustrating the structure of the stent in the embodiment;

FIG. 6 is a rear side view of a stator blade wheel structure in the embodiment

FIG. 7 is a schematic top view of a stationary blade wheel structure in an embodiment.

In the figure:

1-fixed sleeve 2-motor 3-stator impeller

3a wheel cylinder 3b outer blade 3c support rib

4-stent 4 a-outer ring 4 b-inner ring

4 c-reinforcing rib 4 d-positioning step groove 5-motor bolt

6-moving impeller 7-impeller bolt 8-fixed spacer

9-spring washer.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

It should be noted that, in the present invention, unless otherwise explicitly stated or limited, terms such as "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Furthermore, in the present disclosure, unless explicitly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature therebetween.

As shown in fig. 1-2, the motor built-in driving type fan includes a fixed sleeve 1 and a motor 2 axially disposed inside the fixed sleeve 1 along the fixed sleeve 1, a stationary impeller 3 is disposed on an outer peripheral surface of the motor 2 in an interference fit manner, the stationary impeller 3 is in an interference fit with an inner wall surface of the fixed sleeve 1, a support 4 is detachably disposed at a rear end of the fixed sleeve 1, a rear end of the motor 2 is fastened and connected to the support 4 through a motor bolt 5, the support 4 includes an outer ring 4a for being connected to the fixed sleeve 1 and an inner ring 4b for being connected to the motor 2, the outer ring 4a and the inner ring 4b are connected through a plurality of reinforcing ribs 4c, an output shaft of the motor 2 extends out from a front end of the motor 2 and is coaxially and fixedly connected with a movable impeller 6, and the movable impeller 6 is disposed in the fixed sleeve 1.

Preferably, as shown in fig. 3 to 4, the width of the reinforcing rib 4c is gradually reduced from front to back, in short, a structure with a wide front and a narrow back is formed, which can reduce the wind resistance, because when the movable impeller 6 rotates, it blows air towards the front, so that a negative pressure is formed at the back of the fixing sleeve 1 and the airflow passes through the support 4 and enters the fixing sleeve 1, and when the airflow passes through the support 1, the wind resistance can be effectively reduced by the structure set by the reinforcing rib 4 a.

More preferably, as shown in fig. 5, the front end surface of the inner ring 4b is provided with a positioning stepped groove 4d for the rear end of the motor 2 to be inserted into, wherein the depth of the positioning stepped groove 4d is 5mm, and the positioning and assembling of the motor 2 can be facilitated by providing the positioning stepped groove 4 d.

In the present embodiment, the number of the ribs 4c is four, and the four ribs 4c are uniformly spaced between the outer ring body 4a and the inner ring body 4 b.

Further, as shown in fig. 6 to 7, the stationary impeller 3 includes a barrel 3a, outer blades 3b provided at intervals in an annular shape along an outer peripheral surface of the barrel 3a and adapted to be interference-fitted with an inner wall surface of the stationary sleeve 1, and support ribs 3c provided at intervals in an annular shape along an inner peripheral surface of the barrel 3a and adapted to be interference-fitted with an outer wall surface of the motor 2. Cooperate with the motor 2 through the support rib 3c, make the peripheral face of the motor 2 possess sufficient heat radiating area, improve the radiating effect of the motor 2.

The impeller 6 is connected to an output shaft of the motor 2 by an impeller bolt 7, and a fixing washer 8 and a spring washer 9 are provided between a head of the impeller bolt 7 and the impeller 6.

The bracket 4 in this embodiment is made of an aluminum alloy material, and is used for connecting the motor 2 and the fixing sleeve 1, and the structure is firm and more reliable.

According to the drive type fan with the built-in motor, the motor 2 is pressed into the fixed sleeve 1 through the fixed impeller 3 serving as the intermediate part, and the motor 2 and the fixed sleeve 1 are connected through the support 4, so that the motor 2 can be firmly installed in the fixed sleeve 1 and assembled with the movable impeller 6, the whole structure is very compact, and the periphery and the rear end of the motor 2 can be smoothly radiated.

Besides, because whole fan compact structure, the fixed cover 1 of outside can set up the engaging lug structurally so that carry out overall arrangement in required automobile body or equipment and connect, convenient manipulation, simultaneously because the installation is firm, also can more steady transmission power.

In order to make the skilled person more easily understand the improvement of the present invention compared with the prior art, some drawings and descriptions of the present invention have been simplified, and the above embodiment is the preferred implementation of the present invention, besides, the present invention can be implemented in other ways, and any obvious replacement is within the protection scope of the present invention without departing from the concept of the present invention.

Claims

1. Built-in drive formula fan of motor, its characterized in that: including fixed cover (1) and along fixed cover (1) axial setting motor (2) inside fixed cover (1), quiet impeller (3) are installed to the outer peripheral face interference fit of motor (2), the internal wall interference fit of quiet impeller (3) and fixed cover (1), the rear end demountable installation of fixed cover (1) has support (4), the rear end and the support (4) of motor (2) pass through motor bolt (5) fastening connection, support (4) are including being used for outer ring body (4 a) of being connected with fixed cover (1) and being used for inner ring body (4 b) of being connected with motor (2), be connected through a plurality of strengthening ribs (4 c) between outer ring body (4 a) and inner ring body (4 b), the output shaft of motor (2) stretches out and coaxial fixedly connected with movable vane wheel (6) from the front end of motor (2), movable vane wheel (6) are located fixed cover (1).

2. The motor built-in drive fan according to claim 1, characterized in that: the width of the reinforcing rib (4 c) is gradually reduced along the direction from front to back.

3. The motor built-in drive fan according to claim 1, characterized in that: the front end face of the inner ring body (4 b) is provided with a positioning step groove (4 d) for clamping the rear end of the power supply motor (2).

4. The motor built-in drive fan according to claim 3, characterized in that: the depth of the positioning step groove (4 d) is 5mm.

5. The motor built-in drive fan according to claim 1, characterized in that: the number of the reinforcing ribs (4 c) is four, and the four reinforcing ribs (4 c) are uniformly arranged between the outer ring body (4 a) and the inner ring body (4 b) at intervals.

6. The motor built-in drive fan according to claim 1, characterized in that: the stationary vane wheel (3) comprises a wheel cylinder (3 a), outer blades (3 b) which are arranged along the outer circumferential surface of the wheel cylinder (3 a) at annular intervals and used for being in interference fit with the inner wall surface of the fixed sleeve (1), and support ribs (3 c) which are arranged along the inner circumferential surface of the wheel cylinder (3 a) at annular intervals and used for being in interference fit with the outer wall surface of the motor (2).

7. The motor built-in drive fan according to claim 1, characterized in that: the movable impeller (6) is connected with an output shaft of the motor (2) through an impeller bolt (7), and a fixed gasket (8) and a spring gasket (9) are further arranged between the head of the impeller bolt (7) and the movable impeller (6).

8. The motor built-in drive fan according to claim 1, characterized in that: the bracket (4) is made of an aluminum alloy material.