Dust collector motor

Abstract

The utility model discloses a dust collector motor, which comprises a shell and a motor mounting shell, a partition plate is arranged in the middle of the shell and divides the shell into an impeller mounting cavity and a motor mounting cavity, and an air inlet is formed in the front side of the shell; a motor mounting shell is mounted on one side of the partition plate and located in the motor mounting cavity, a transmission shaft of a brush motor penetrates through the partition plate and extends into the impeller mounting cavity to be connected with a dust collection impeller, and the dust collection impeller is located in the impeller mounting cavity. The tail end of the motor mounting shell is provided with a part extending out of the shell and is provided with a shell cover, and a gap is formed between the shell cover and the end face, close to the shell cover, of the shell; a heat dissipation gap is formed between the outer wall of the motor installation shell and the inner wall of the machine shell, a plurality of through holes are formed between the impeller installation cavity and the heat dissipation gap, the air flow speed is increased in the process that airflow passes through the through holes, heat generated by the brushless motor is discharged, and the heat dissipation efficiency is improved. And a part of heat is led out from a gap between each heat dissipation hole in the side wall and the end face, close to the shell cover, of the shell for graded heat dissipation.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a dust collector motor. BACKGROUND

[0002] In order to meet the cleaning demand under different scenes, the suction of dust collection motor is constantly improved. From ordinary family cleaning to industrial cleaning, the requirement of suction is very different, along with the continuous improvement of electromagnetic theory, the design and manufacturing technology of motor have been greatly improved. New electromagnetic material is applied to the stator and rotor of dust collection motor, so that the magnetic field intensity and energy conversion efficiency of motor are improved. Let motor can produce greater torque and higher speed under the same volume, and then improve the suction of dust collection motor, considering that the dust collector may suck a part of damp garbage into the dust collector cavity in the use process, the damp water vapor may enter the motor and cause motor failure, the miniaturization of motor shell is not conducive to the heat dissipation of motor, and the temperature is too high to affect the electromagnetic performance in it and also cause motor failure. SUMMARY

[0003] To solve the technical problems in the background art, the utility model provides a dust collector motor.

[0004] The utility model discloses a dust collector motor, including the casing, motor installation shell, the casing and motor installation shell are all cylindrical, the middle part of casing is equipped with the baffle, and the casing is divided into impeller installation cavity and motor installation cavity, the front side of casing is equipped with the air inlet, and the air inlet is linked with impeller installation cavity,

[0005] The side of baffle is installed with motor installation shell, and the motor installation shell is located in motor installation cavity, the axis of casing coincides with the axis of motor installation shell, the motor installation cavity is used for installing brushless motor, the transmission shaft of brushless motor penetrates baffle and extends into impeller installation cavity and is connected with dust collection impeller, and the dust collection impeller is located in impeller installation cavity,

[0006] The tail end of motor installation shell has the part of protruding from casing and is equipped with the shell cover, and the clearance between shell cover and the end face of casing close to shell cover has the clearance between the outer wall of motor installation shell and the inner wall of casing,

[0007] The outer wall of motor installation shell and the inner wall of casing have heat dissipation gap, a plurality of through holes are arranged between impeller installation cavity and heat dissipation gap, and the through hole is connected with impeller installation cavity and heat dissipation gap.

[0008] Preferably, the hole diameter of the through hole gradually reduces from the direction of the impeller installation cavity to the heat dissipation gap.

[0009] Preferably, the through hole is distributed with the axis center of the baffle.

[0010] Preferably, the motor mounting cavity of the casing is provided with a plurality of groups of heat dissipation holes.

[0011] Preferably, the heat dissipation holes are provided in a plurality of groups and are distributed around the axial center of the casing.

[0012] Preferably, a plurality of groups of air guide fins are mounted on the inner side wall of the casing, the air guide fins have a gap with the outer wall of the motor mounting shell, each group of the air guide fins is mounted on one side of the heat dissipation hole close to the cover, and each group of the air guide fins is inclined to the partition plate.

[0013] Preferably, a plurality of support columns are mounted on the outer side wall of the casing and are distributed around the axial center of the casing.

[0014] Preferably, the cover is a circular truncated cone, and the end face of the side with a smaller diameter is connected to the tail end of the motor mounting shell.

[0015] In the utility model, the brushless motor is mounted in the motor mounting shell, air enters the impeller mounting shell inner cavity from the air inlet on the front side of the casing, enters the cooling cavity through the through hole, and the outer side wall of the brushless motor is cooled. At the same time, when the dust collection motor works, the humid water vapor enters the motor shell, and does not enter the brushless motor, so that the waterproof function is realized. After the airflow enters the cooling cavity from the air inlet, the gap between the cover and the end face of the casing close to the cover has a cooling effect. The through hole plays a role of reducing the diameter in the process of flowing from the air inlet to the cooling cavity. The airflow speed is enhanced in the process of passing, the air flow speed is accelerated, the heat generated by the brushless motor is discharged, a part of the heat is discharged from the various heat dissipation holes of the side wall, and another part of the heat is discharged from the gap between the end face of the casing close to the cover, so that the heat is dissipated in stages.

[0016] Additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a structural schematic view of the utility model;

[0019] Figure 3 It is a structural schematic view of the partition plate through hole air inlet in the utility model;

[0020] Figure 4 It is a structural schematic view of the partition plate through hole air outlet in the utility model;

[0021] The following are the labels in the diagram: 1. Housing; 101. Heat dissipation hole; 102. Air guide plate; 103. Support column; 2. Motor mounting shell; 3. Partition plate; 301. Through hole; 4. Shell cover; 5. Brushless motor; 501. Dust suction impeller; 6. Impeller mounting cavity; 7. Heat dissipation gap. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] like Figures 1-4 The vacuum cleaner motor shown includes a housing 1 and a motor mounting housing 2. Both the housing 1 and the motor mounting housing 2 are cylindrical. A partition 3 is provided in the middle of the housing 1, which divides the housing 1 into an impeller mounting cavity 6 and a motor mounting cavity. An air inlet is provided on the front side of the housing 1, and the air inlet is connected to the impeller mounting cavity 6.

[0024] A motor mounting housing 2 is installed on one side of the partition 3. The motor mounting housing 2 is located in the motor mounting cavity. The axis of the housing 1 coincides with the axis of the motor mounting housing 2. The motor mounting cavity is used to install a brushless motor 5. The drive shaft of the brushless motor 5 passes through the partition 3 and extends into the impeller mounting cavity 6, where a dust suction impeller 501 is connected. The dust suction impeller 501 is located in the impeller mounting cavity 6.

[0025] The motor mounting housing 2 has a portion extending out of the housing 1 at its tail end and is fitted with a housing cover 4. There is a gap between the housing cover 4 and the end face of the housing 1 near the housing cover 4.

[0026] There is a heat dissipation gap 7 between the outer wall of the motor mounting housing 2 and the inner wall of the housing 1. Several through holes 301 are provided between the impeller mounting cavity 6 and the heat dissipation gap 7, and the through holes 301 connect the impeller mounting cavity 6 and the heat dissipation gap 7.

[0027] The brushless motor 5 is installed inside the motor mounting housing 2, and the impeller is installed inside the impeller mounting housing. When the motor drives the impeller to rotate, air enters the inner cavity of the impeller mounting housing from the air inlet on the front side of the housing 1, and enters the cooling cavity through the through hole 301 to dissipate heat from the outer wall of the brushless motor 5. At the same time, when the vacuum cleaner motor is working, the moisture that enters the motor housing 1 will not enter the inside of the brushless motor 5, which can play a waterproof role. Furthermore, after the airflow enters the cooling cavity from the air inlet, the gap between the housing cover 4 and the end face of the housing 1 near the housing cover 4 has a heat dissipation effect.

[0028] Preferably, the hole diameter of the through hole 301 gradually decreases from the impeller mounting cavity 6 to the heat dissipation gap 7.

[0029] Preferably, the through hole 301 is distributed with the axis center of the baffle.

[0030] The through hole 301 plays a role of reducing the diameter in the process of flowing from the air inlet to the heat dissipation cavity, and the air flow is enhanced in the process of passing, and the air flow is accelerated to discharge the heat generated by the brushless motor 5.

[0031] Preferably, the motor mounting cavity part of the shell 1 is provided with a plurality of heat dissipation holes 101, and a part of the heat is discharged from the heat dissipation holes 101 on the side wall after the air flow passes through the heat dissipation gap 7, and then a part of the heat is discharged from the gap between the end surface of the shell 1 close to the cover 4, thereby playing a role of graded heat dissipation.

[0032] Preferably, the heat dissipation holes 101 are provided in multiple groups and are distributed with the axis center of the shell 1.

[0033] Preferably, a plurality of air guide fins 102 are mounted on the inner side wall of the shell 1, and the air guide fins 102 have a gap with the outer wall of the motor mounting shell 2, each group of the air guide fins 102 is mounted on one side of the heat dissipation hole 101 close to the cover 4, and each group of the air guide fins 102 is inclined to the partition plate 3.

[0034] The air guide fin 102 can play a guiding role to guide a part of the air flow to the heat dissipation hole 101, thereby enhancing the heat dissipation function.

[0035] Preferably, a plurality of support columns 103 are mounted on the outer side wall of the shell 1 and are distributed with the axis center of the shell 1. The support column 103 can prevent the heat dissipation hole 101 from being blocked by the inner wall of the dust collector after being installed, thereby affecting the heat dissipation function.

[0036] Preferably, the cover 4 is a circular truncated cone, and the end surface of the side with a smaller diameter is connected to the tail end of the motor mounting shell 2. The side of the circular truncated cone-shaped cover 4 can play a guiding role.

[0037] It should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0038] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0039] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0041] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A dust extractor motor, characterized by: The utility model relates to a kind of brushless motor dust collector, including casing (1), motor mounting shell (2), the casing (1) and motor mounting shell (2) are cylindrical, the middle part of the casing (1) is equipped with partition (3), and the casing (1) is divided into impeller installation cavity (6) and motor installation cavity, the front side of the casing (1) is equipped with air inlet, and air inlet is connected with impeller installation cavity (6); The partition (3) is equipped with motor mounting shell (2) on one side, and the motor mounting shell (2) is located in motor installation cavity, the axis of the casing (1) coincides with the axis of the motor mounting shell (2), and the motor installation cavity is used for installing brushless motor (5), the transmission shaft of the brushless motor (5) penetrates the partition (3) and extends into impeller installation cavity (6) and is connected with dust suction impeller (501), and the dust suction impeller (501) is located in impeller installation cavity (6); The tail end of the motor mounting shell (2) has part that protrudes from the casing (1) and is equipped with shell cover (4), and the shell cover (4) and the end face of the casing (1) close to the shell cover (4) have gap; The outer wall of the motor mounting shell (2) and the inner wall of the casing (1) have heat dissipation gap (7), a plurality of through holes (301) are formed between the impeller installation cavity (6) and the heat dissipation gap (7), and the through holes (301) are connected with the impeller installation cavity (6) and the heat dissipation gap (7).

2. A dust cleaner motor according to claim 1, wherein The hole diameter of the through hole (301) gradually decreases from the direction of the impeller installation cavity (6) to the heat dissipation gap (7).

3. A dust cleaner motor according to claim 2, wherein The through hole (301) is distributed with the axis center of the baffle.

4. A dust cleaner motor according to claim 1, wherein The motor installation cavity part of the casing (1) is equipped with a plurality of heat dissipation holes (101).

5. A dust cleaner motor according to claim 4, wherein The heat dissipation hole (101) is provided with a plurality of groups and is distributed with the axis center of the casing (1).

6. A dust cleaner motor according to claim 5, wherein A plurality of air guide fins (102) are installed on the inner side wall of the casing (1), and the air guide fins (102) and the outer wall of the motor mounting shell (2) have gap, each group of air guide fins (102) is installed on one side close to the shell cover (4) of the heat dissipation hole (101), and each group of air guide fins (102) is inclined to the partition (3).

7. A dust cleaner motor as claimed in claim 1, wherein A plurality of support columns (103) are installed on the outer side wall of the casing (1) and are distributed with the axis center of the casing (1).

8. A dust cleaner motor according to claim 1, wherein The shell cover (4) is a circular truncated cone, and the end face of the smaller diameter side is connected with the tail end of the motor mounting shell (2).

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