Motor casing with double air ducts

By designing a dual air duct and a reinforced coating in the motor housing, the problem of poor heat dissipation in the motor housing is solved, achieving more efficient heat dissipation circulation and stronger protection performance, thereby improving the overall performance and service life of the motor.

CN224054012UActive Publication Date: 2026-03-27SUZHOU JINZHONGWEI TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing motor housing lacks an effective heat dissipation mechanism, resulting in poor heat dissipation.

Method used

Design a motor housing with dual air ducts, including a transition air duct, a connecting air duct, an exhaust air duct, an intake fan, an exhaust fan, an intake cavity, and an intake fan, forming a complete heat dissipation circulation system, and combining a metal reinforcement layer and an epoxy resin coating to improve protective performance.

Benefits of technology

It achieves better heat dissipation and quieter operation, enhances the overall performance and protection of the motor, and extends its service life.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a motor casing with double air ducts, which relates to the technical field of motor casings and comprises a casing upper cover and an air duct assembly, a casing body is mounted on the front side of the casing upper cover, a casing fan cover is arranged on the front side of the casing upper cover, and the air duct assembly is arranged in the casing body. The air duct assembly comprises transition air ducts, a connecting air duct, an exhaust duct, an air inlet fan, an air outlet fan, an air inlet cavity and an air inlet fan, and the transition air ducts are arranged on the left side and the right side of the interior of the inner wall of the machine shell. According to the motor shell with the double air channels, the device can form heat dissipation circulation through the double air channel design through the air channel assembly, so that the heat dissipation effect of a motor is better, the overall performance is more efficient, and the motor has a certain mute and noise reduction effect; through the casing upper cover, the casing body, the casing fan cover, the metal reinforcing layer and the epoxy resin coating, the device can enhance the casing performance, improve the protection effect on the interior of the motor, and prolong the service life of the motor.
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Description

TECHNICAL FIELD

[0001] The utility model relates to motor casing technical field, concretely is a double air duct's motor casing. BACKGROUND

[0002] The motor casing is the external protection structure of the motor, is mainly used for protecting the important components such as stator, rotor inside the motor, prevents dust, moisture, foreign matter etc. from entering, simultaneously plays the role of heat dissipation, noise prevention and electromagnetic shielding, and the motor casing is widely used in industrial equipment, household appliances, automobile etc. field, and different scenes have different requirements to the material and design of casing, and the motor casing is an important component of the motor, and its design and material directly influence the performance, life and applicable environment of the motor. However, the current motor casing still has the following shortcomings:

[0003] Such as the patent file with the publication number CN219164338U discloses a motor casing. The motor casing is provided with a circular groove in the inner wall of the connecting groove, which is communicated with the connecting groove and is in the form of a circular arc, facilitating tapping, and facilitating the fixation of the cover plate and the cylinder by screws. The circular groove is integrally formed with the cylinder, but it does not have a better heat dissipation mechanism, and the overall heat dissipation effect of the motor is poor.

[0004] Therefore, in view of the above, the existing structure is improved, and a double air duct motor casing is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a double air duct motor casing to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a double air duct motor casing, comprising a casing upper cover and an air duct assembly, the casing upper cover front side is installed with a casing shell body, and the casing upper cover front side is provided with a casing air scoop, the air duct assembly is arranged in the casing shell body, and the air duct assembly comprises a transition air duct, a connecting air duct, an exhaust air duct, an air inlet fan, an air outlet fan, an air inlet cavity and an air inlet machine, the transition air duct is arranged on the left and right sides of the inner wall of the casing shell body, and the lower end of the inner wall of the casing shell body is provided with the connecting air duct, and the connecting air duct is communicated with the transition air duct, the lower side of the casing shell body is provided with the exhaust air duct, and the exhaust air duct penetrates the inner wall of the casing air scoop, and the lower side of the casing shell body is installed with the air inlet fan.

[0007] Further, the upper side of the casing shell body is provided with the air outlet fan, and the air inlet fan and the air outlet fan are in close connection with the casing shell body and are integrated structures.

[0008] Further, the inner side of the casing upper cover is provided with the air inlet cavity, and the upper side of the casing upper cover is installed with the air inlet machine.

[0009] Further, the upper end of the inner side of the upper cover of the casing is provided with an upper support, and the surface of the upper support is mounted with a stator.

[0010] Further, the inner side of the casing body is mounted with a stator wheel, and the front side of the stator wheel is provided with a rotor wheel.

[0011] Further, the inner side of the stator wheel is provided with a rotor, and the inner side of the stator wheel is rotationally connected with the rotor.

[0012] Further, the front end of the outer side of the casing body is hingedly connected with the rear end of the inner side of the casing air cover, and the inner surface of the casing body is provided with a metal reinforcing layer.

[0013] Further, the casing body is an integral molding structure, and the outer surface of the casing body is provided with an epoxy resin coating.

[0014] The utility model provides a motor casing of double air flue has the following beneficial effects:

[0015] 1, the utility model discloses a wind channel subassembly, and the wind channel subassembly includes transition air flue, connecting air flue, exhaust air flue, inlet fan, outlet fan, inlet cavity and inlet fan, when using, starts inlet fan, makes inlet fan and sends the cool wind of outside into the inside of inlet cavity, then by inlet cavity enters the transition air flue of casing body inner wall, then passes through transition air flue and is led into connecting air flue, makes the outside cool air pass through casing body and carries out the cooling to the inside, then is discharged through exhaust air flue, forms complete air flue, starts inlet fan and outlet fan simultaneously, leads in cool air through bottom inlet fan air flue, discharges hot air through top outlet fan air flue, forms effective heat dissipation circulation, thereby make the device can form heat dissipation circulation through double air flue design, and the motor heat dissipation effect is better, and the overall performance is more efficient, and makes the motor have certain mute noise reduction effect.

[0016] 2, the utility model discloses a casing upper cover, casing body, casing air cover, metal reinforcing layer and epoxy resin coating, when using, through the joint action of casing upper cover, casing body and casing air cover, realizes the overall protection to the inside of motor, and casing upper cover, casing body and casing air cover are all detachable structure, and the inside structure of motor is maintained and cleaned up, and metal reinforcing layer can improve the overall hardness of casing body, and the compression resistance is strengthened, and the wear resistance of epoxy resin coating can improve the casing body, and it is not easy to be damaged, thereby the device can enhance the casing performance, improve the protection effect to the inside of motor, prolong its service time. ACCURACY OF DRAWINGS

[0017] Fig. 1 It is the three-dimensional structure schematic view of the utility model discloses a motor casing of double air flue;

[0018] Fig. 2The utility model relates to a double air duct's motor casing's air duct subassembly three-dimensional structure schematic diagram.

[0019] Fig. 3 The utility model relates to a double air duct's motor casing's three-dimensional internal structure schematic diagram.

[0020] In the drawing: 1, casing upper cover;2, casing body;3, casing air scoop;4, air duct subassembly;401, transition air duct;402, connecting air duct;403, exhaust air duct;404, air inlet fan;405, air outlet fan;406, air inlet cavity;407, air inlet machine;5, upper support;6, stator;7, fixed impeller;8, moving impeller;9, rotor;10, metal reinforcing layer;11, epoxy resin coating. Specific implementation

[0021] The embodiment of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0022] As Figs. 1 to 3 Shown, a double air duct's motor casing, including casing upper cover 1 and air duct subassembly 4, casing upper cover 1 front side is equipped with casing body 2, and casing upper cover 1 front side is provided with casing air scoop 3, and air duct subassembly 4 is set up in casing body 2 inside, and air duct subassembly 4 includes transition air duct 401, connecting air duct 402, exhaust air duct 403, air inlet fan 404, air outlet fan 405, air inlet cavity 406 and air inlet machine 407, transition air duct 401 is set up in the left and right sides of casing body 2 inner wall inside, and the lower end of casing body 2 inner wall inside is equipped with connecting air duct 402, and connecting air duct 402 and transition air duct 401 are through, and casing body 2 lower side is equipped with exhaust air duct 403, and exhaust air duct 403 is through casing air scoop 3 inner wall, and casing body 2 lower side is equipped with air inlet fan 404, and casing body 2 upper side is provided with air outlet fan 405, and air outlet fan 405 and air inlet fan 404 are all with casing body 2 as the close connection integrated structure, and casing upper cover 1 inner side is equipped with air inlet cavity 406, and casing upper cover 1 upper side is equipped with air inlet machine 407.

[0023] Specific operation is as follows, when using, start air inlet machine 407, make air inlet machine 407 send the cool wind of outside into air inlet cavity 406 inside, then by air inlet cavity 406 into casing body 2 inner wall's transition air duct 401, again by transition air duct 401 into connecting air duct 402, make the outside cool air pass through casing body 2 and carry out the cooling to inside, then pass through exhaust air duct 403 and export, form complete air duct, start air inlet fan 404 and air outlet fan 405 simultaneously, by bottom air inlet fan 404 air duct and introduce cool air, by top air outlet fan 405 air duct and export hot air, form effective heat dissipation circulation.

[0024] Please refer to Figs. 1 to 3 , the inside of the upper cover 1 is provided with an upper support 5, and the surface of the upper support 5 is provided with a stator 6; the inside of the casing 2 is provided with a fixed impeller 7, and the front side of the fixed impeller 7 is provided with a moving impeller 8; the inside of the fixed impeller 7 is provided with a rotor 9, and the inside of the fixed impeller 7 is rotatably connected with the rotor 9; the front end of the casing 2 is clamped and connected with the rear end of the casing fan cover 3, and the inner surface of the casing 2 is provided with a metal reinforcing layer 10; the casing 2 is an integral structure, and the outer surface of the casing 2 is provided with an epoxy resin coating 11.

[0025] The specific operation is as follows: in use, the overall protection of the motor is realized through the cooperation of the casing upper cover 1, the casing body 2 and the casing fan cover 3, and the casing upper cover 1, the casing body 2 and the casing fan cover 3 are all detachable structures, so that the internal structure of the motor can be maintained and cleaned; the metal reinforcing layer 10 can improve the overall hardness of the casing body 2, so that the compression resistance is enhanced; and the epoxy resin coating 11 can improve the wear resistance of the casing body 2, so that the casing body 2 is not easy to be damaged.

[0026] In summary, as shown in Figs. 1 to 3 , the double air duct motor casing, in use, first, the overall protection of the motor is realized through the cooperation of the casing upper cover 1, the casing body 2 and the casing fan cover 3, and the casing upper cover 1, the casing body 2 and the casing fan cover 3 are all detachable structures, so that the internal structure of the motor can be maintained and cleaned; the metal reinforcing layer 10 can improve the overall hardness of the casing body 2, so that the compression resistance is enhanced; and the epoxy resin coating 11 can improve the wear resistance of the casing body 2, so that the casing body 2 is not easy to be damaged; in the use process of the device, the air inlet fan 407 is started, so that the air inlet fan 407 sucks the external cold air into the air inlet cavity 406, and then the air inlet cavity 406 enters the transition air duct 401 on the inner wall of the casing body 2, and then enters the connecting air duct 402 through the transition air duct 401, so that the external cold air is cooled through the casing body 2, and then is discharged through the air outlet duct 403, forming a complete air duct; at the same time, the air inlet fan 404 and the air outlet fan 405 are started, the cold air is introduced through the air duct of the bottom air inlet fan 404, the hot air is discharged through the air duct of the top air outlet fan 405, and an effective heat dissipation cycle is formed.

[0027] The embodiments of the present application are given for the purpose of illustration and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles and actual applications of the present application, and to enable those of ordinary skill in the art to understand the present application in order to design various embodiments with various modifications for specific purposes.

Claims

1. A double-duct motor housing comprising a housing top cover (1) and a duct assembly (4), characterized in that: The upper cover (1) of the shell is provided with a shell housing (2) on the front side, and a shell air cover (3) is arranged on the front side of the upper cover (1) of the shell, the air duct assembly (4) is arranged inside the shell housing (2), and the air duct assembly (4) comprises a transition air duct (401), a connecting air duct (402), an exhaust air duct (403), an air inlet fan (404), an air outlet fan (405), an air inlet cavity (406) and an air inlet machine (407), the transition air duct (401) is arranged on the left and right sides of the inner wall of the shell housing (2), and the lower end of the inner wall of the shell housing (2) is provided with a connecting air duct (402), and the connecting air duct (402) is in communication with the transition air duct (401), the lower side of the shell housing (2) is provided with an exhaust air duct (403), and the exhaust air duct (403) penetrates the inner wall of the shell air cover (3), and the lower side of the shell housing (2) is provided with an air inlet fan (404).

2. A dual-duct motor enclosure according to claim 1, wherein, The upper side of the shell housing (2) is provided with an air outlet fan (405), and the air inlet fan (404) and the air outlet fan (405) are in close connection with the shell housing (2) as an integrated structure.

3. A dual-duct motor housing according to claim 1, wherein, The inner side of the upper cover (1) of the shell is provided with an air inlet cavity (406), and the upper side of the upper cover (1) of the shell is provided with an air inlet machine (407).

4. The dual-duct motor housing of claim 1, wherein, The inner side of the upper cover (1) of the shell is provided with an upper support (5) at the front end, and the surface of the upper support (5) is provided with a stator (6).

5. The dual-duct motor housing of claim 1, wherein, The inner side of the shell housing (2) is provided with a fixed impeller (7), and the front side of the fixed impeller (7) is provided with a moving impeller (8).

6. A dual-duct motor housing as set forth in claim 5, wherein, The inner side of the fixed impeller (7) is provided with a rotor (9), and the inner side of the fixed impeller (7) is rotatably connected with the rotor (9).

7. A dual-duct motor housing as set forth in claim 1, wherein, The front end of the shell housing (2) is connected with the rear end of the shell air cover (3) on the inner side, and the inner surface of the shell housing (2) is provided with a metal reinforcing layer (10).

8. A dual-duct motor housing as set forth in claim 1, wherein, The shell housing (2) is an integral molding structure, and the outer surface of the shell housing (2) is provided with an epoxy resin coating (11).

Citation Information

Patent Citations

  • Motor casing

    CN219164338U