Motor assembly and wet-type cleaning device

Abstract

The utility model discloses a motor assembly and a wet-type cleaning device. The motor assembly comprises a motor body and a motor inner shell. The motor body is used for generating suction airflow. The motor inner shell is arranged on the periphery of the motor body, a first containing space is defined in the motor inner shell, the motor inner shell comprises an upper inner shell body and a lower inner shell body which are in butt joint with each other, and a first sealing piece is arranged between the upper inner shell body and the lower inner shell body. And the first sealing piece is used for separating the first accommodating space into two spaces which are independent from each other. Wherein the butt joint end of the upper inner shell comprises an inner butt joint part and an outer butt joint part, the inner butt joint part and the motor body are sealed through part of the first sealing element, and the outer butt joint part and the lower inner shell are sealed through part of the first sealing element. By adopting the sealing mode, the cost can be reduced, the installation is simpler, and the error-tolerant rate of the whole motor assembly is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning equipment, in particular to a motor component and a wet cleaning device. Background Art

[0002] Cleaning devices such as vacuum cleaners mainly rely on suction motors to generate suction airflow. The greater the airflow generated by the suction motor, the stronger its cleaning ability. However, the greater the airflow generated by the suction motor, the greater its power, and relatively speaking, the greater the noise it generates, whether it is the noise generated by the flow of air during operation or the vibration generated by the motor during operation. Especially in wet motors, because they can perform wet cleaning, their air duct structure is more complicated than that of ordinary motor air ducts, and the noise they generate may be greater. Utility Model Content

[0003] In view of the deficiencies existing in the above-mentioned technologies, the utility model provides a motor assembly and a wet cleaning device, which can effectively clean two roller brushes at the same time.

[0004] In one aspect, the utility model provides a motor assembly, comprising

[0005] A motor body, used for generating a suction airflow;

[0006] A motor inner shell is arranged on the outer periphery of the motor body, the motor inner shell defines a first accommodation space, the motor inner shell includes an upper inner shell and a lower inner shell butted against each other, a first sealing member is arranged between the upper inner shell and the lower inner shell, and the first sealing member isolates the first accommodation space into two independent spaces;

[0007] Wherein, the butt joint end of the upper inner shell includes an inner butt joint portion and an outer butt joint portion, the inner butt joint portion and the motor body are sealed by part of the first seal, and the outer butt joint portion and the lower inner shell are sealed by part of the first seal.

[0008] Optionally, it further includes a motor housing arranged on the outer periphery of the motor inner shell, the motor housing includes a lower housing and a first housing, and the upper housing and the first housing are sealed by a portion of the first sealing member.

[0009] Optionally, the first shell includes an upper shell and a middle shell, and the upper shell and the lower shell are sealed by a second seal. At the same time, one end of the second seal contacts the upper inner shell to form an independent space between the first seal, the second seal, the upper inner shell and the middle shell.

[0010] Optionally, the first sealing member is provided with a shock absorbing groove, and the shock absorbing groove is arranged between the lower inner shell and the motor body.

[0011] Optionally, the motor assembly includes a cooling air duct and a suction air duct, the cooling air duct includes a cooling air inlet duct and a cooling air outlet duct, the cooling air inlet duct is defined by the upper outer shell, the upper inner shell and the second seal; the cooling air outlet duct is defined by the upper inner shell, the middle outer shell, the first seal and the second seal.

[0012] Optionally, a portion of the main air outlet duct is defined between the lower inner shell and the lower outer shell.

[0013] On the other hand, the utility model also provides a wet cleaning device, including a main body, wherein the motor assembly is located inside the main body; a first air outlet and a second air outlet are also defined inside the main body, wherein the first air outlet is fluidically connected to the main air outlet of the motor assembly, and the second air outlet is fluidically connected to the cooling air outlet of the motor.

[0014] Optionally, a water tank assembly is also included, wherein the water tank assembly includes a cleaning liquid tank and a recovery tank, and the cleaning liquid tank and the recovery tank are integrally formed.

[0015] Optionally, the motor assembly and the water tank assembly are distributed along the length direction of the wet cleaning device, and the cleaning liquid tank and the recovery tank are distributed along the width direction of the wet cleaning device.

[0016] Optionally, it further includes a suction duct located upstream of the motor assembly, and the first air outlet of the first air outlet duct and the second air outlet of the second air outlet duct are respectively located on both sides of the suction duct.

[0017] The utility model provides a motor assembly and a wet cleaning device, wherein the motor assembly includes a motor body and a motor inner shell. The motor body is used to generate a suction airflow. The motor inner shell is arranged on the outer periphery of the motor body, and the motor inner shell defines a first accommodating space, and the motor inner shell includes an upper inner shell and a lower inner shell that are butt-jointed with each other, and a first seal is arranged between the upper inner shell and the lower inner shell, and the first seal isolates the first accommodating space into two independent spaces. Among them, the butt joint end of the upper inner shell includes an inner butt joint part and an outer butt joint part, and the inner butt joint part and the motor body are sealed by part of the first seal, and the outer butt joint part and the lower inner shell are sealed by part of the first seal. The above-mentioned sealing method can reduce costs, make installation simpler, and make the fault tolerance rate of the entire motor assembly higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a wet cleaning device in one embodiment of the utility model;

[0019] Figure 2 For along Figure 1 Cross-section view along the AA direction;

[0020] Figure 3 For along Figure 1 Cross-section along the BB direction;

[0021] Figure 4 for Figure 3 A magnified view of the structure in the middle E region;

[0022] Figure 5 This is a schematic diagram of the structure after the housing is hidden in one embodiment;

[0023] Figure 6 For along Figure 5 Cross-section view in the CC direction;

[0024] Figure 7 is a structural exploded view of a motor assembly in one embodiment;

[0025] Figure 8 This is a structural exploded view of the motor assembly from another angle;

[0026] Fig. 9 A diagram showing the relative positions of a motor assembly and a water tank assembly in one embodiment;

[0027] Fig.10 This is a schematic diagram of the bottom structure of the main body in one embodiment;

[0028] Fig.11 is a schematic structural diagram of a first sealing member in an embodiment;

[0029] Fig.12 Schematic diagram of the structure of the second sealing member in one embodiment. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0034] refer to Figure 1 and 2 , a wet cleaning device 100 is shown in the figure. The wet cleaning device 100 generally includes a dirt recovery system and a cleaning liquid supply system. The dirt recovery system generally includes a motor assembly 3 for generating a suction airflow and a recovery tank 22 for recovering dirt. The cleaning liquid supply system includes a cleaning liquid tank 21 for containing cleaning liquid and a water pump assembly. The water pump assembly is used to directly or indirectly supply the cleaning liquid in the cleaning liquid tank 21 to the surface to be cleaned. The wet cleaning device 100 includes a main body 1. The main body 1 generally includes a shell. A containing space is defined in the shell for containing some electrical components and parts. The motor assembly 3 is also arranged in the shell.

[0035] refer to Figure 3-8 In order to make the flow path clearer, Figure 6 The impeller of the motor is hidden in the figure. A motor assembly 3 is disclosed in the figure. The motor assembly 3 includes a motor body 31 and a motor housing. The motor body 31 is used to generate a suction airflow. Figure 3As shown, the motor body 31 is generally arranged vertically, and the suction port of the motor body 31 is generally arranged downward. Of course, in other embodiments, the motor body 31 can also be placed horizontally, which is not described here. The motor in the wet cleaning device 100 generally adopts a wet motor, which can effectively prevent water vapor from entering the inside of the motor and causing corrosion to the inside of the motor. The motor assembly 3 generally includes a relatively independent suction duct 37 and a cooling duct 36. Figure 6 The flow direction indicated by the small arrow in FIG. 3 is the flow direction of the airflow in the cooling air duct 36 . Figure 6 The flow direction indicated by the large arrow in is the flow direction of the airflow in the suction duct 37. The cooling duct 36 includes a cooling air inlet duct 361 and a cooling air outlet duct 362. The external airflow enters the motor body 31 from the cooling air inlet duct 361 and then is discharged from the cooling air outlet duct 362 to cool the motor. The suction duct 37 includes an impeller front duct 17 and a main air outlet duct 13. The airflow generated by the impeller enters the impeller from the impeller front duct 17 and then is discharged from the motor assembly 3 from the main air outlet duct 13.

[0036] refer to Figure 4-8 , the structure of the motor housing is introduced in detail. The motor housing generally includes a motor inner housing 32 and a motor outer housing 34. The motor inner housing 32 is arranged on the outer periphery of the motor body 31, and the motor inner housing 32 defines a first accommodating space. The motor inner housing 32 includes an upper inner housing 321 and a lower inner housing 325 that are butt-jointed with each other, and a first sealing member 33 is arranged between the upper inner housing 321 and the lower inner housing 325. The first sealing member 33 isolates the first accommodating space into two independent spaces. The motor housing also includes a motor outer housing 34 arranged on the outer periphery of the motor inner housing 32, and the motor outer housing 34 includes a lower outer housing 341 and a first outer housing, and the lower outer housing 341 and the first outer housing are sealed. The first outer housing includes an upper outer housing 342 and a middle outer housing 343. The upper outer housing 342 and the middle outer housing 343 are sealed. The motor assembly 3 includes a cooling air duct 36 and a suction air duct 37. The cooling air duct 36 includes a cooling air inlet duct 361 and a cooling air outlet duct 362. The cooling air inlet duct 361 is defined by the upper shell 342, the upper inner shell 321 and the second seal 35. The cooling air outlet duct 362 is defined by the upper inner shell 321, the middle shell 343, the first seal 33 and the second seal 35. A portion of the main air outlet duct 13 is defined between the lower inner shell 325 and the lower shell 341.

[0037] refer to Figure 4The docking end 322 of the upper inner shell 321 includes an inner docking portion 323 and an outer docking portion 324. The inner docking portion 323 and the motor body 31 are sealed by a portion of the first sealing member 33, and the outer docking portion 324 and the lower inner shell 325 are sealed by a portion of the first sealing member 33. In the prior art, the upper inner shell 321 and the lower inner shell 325 are respectively sealed and connected to the motor body 31 through sealing rings, and the two do not need to contact each other. However, by adopting the above-mentioned sealing method in the present application, the docking end 322 of the upper inner shell 321 is directly sealed with the motor body 31 and the lower inner shell 325 respectively, so as to isolate the first accommodating space into two independent spaces. This can effectively reduce costs, make installation simpler, and make the fault tolerance rate of the entire motor assembly 3 higher.

[0038] Continue to refer Figure 6-8 , the upper housing 342 and the first housing are sealed by part of the first seal 33. Here, the seal between the upper housing 342 and the first housing is also sealed by the first seal 33, which can further reduce costs, make it easier for production line workers to operate during installation, and make the entire motor assembly 3 more fault-tolerant. The lower housing 341 and the lower inner housing 325 are connected by a corrugated hose, which also plays a role in shock absorption.

[0039] Continue to refer Figure 6-8 The first shell includes an upper shell 342 and a middle shell 343. The upper shell 342 and the lower shell 341 are sealed by a second seal 35. At the same time, one end of the second seal 35 contacts the upper inner shell 321 to form an independent space between the first seal 33, the second seal 35, the upper inner shell 321 and the middle shell 343.

[0040] refer to Figure 4 The first sealing member 33 is provided with a shock absorbing groove 331, and the shock absorbing groove 331 is provided between the lower inner shell 325 and the motor body 31. The shock absorbing groove 331 can further achieve shock absorption of the motor assembly 3 and reduce noise.

[0041] refer to Figure 4 and 11 , the figure shows the specific structure of the first seal 33, which is installed on the outer periphery of the motor body 31, and contacts the motor body 31, the upper inner shell 321, the lower inner shell 325, the upper outer shell 342 and the lower outer shell 341 respectively to form a seal of the corresponding structure. This method of using one seal to achieve sealing between multiple parts can reduce costs, facilitate installation, and reduce errors in the assembly process.

[0042] refer to Fig.12, the figure shows the specific structure of the second seal 35, the second seal 35 is installed on the outer periphery of the upper inner shell 321, and is respectively in contact with the upper inner shell 321, the upper outer shell 342, and the middle outer shell 343 to form a seal of the corresponding structure.

[0043] refer to Fig.10 The main body 1 further defines a first air outlet 11 and a second air outlet 12, wherein the first air outlet 11 is in fluid communication with the main air outlet 13 of the motor assembly 3, and the second air outlet 12 is in fluid communication with the cooling air outlet 362 of the motor. The main body 1 further includes a suction duct 14 located upstream of the motor assembly, wherein a first air outlet 15 of the first air outlet 11 and a second air outlet 16 of the second air outlet 12 are located on both sides of the suction duct 14, respectively.

[0044] refer to Fig. 9 The water tank assembly 2 in the figure can be detachably placed on the main body 1, and the water tank assembly 2 includes a cleaning liquid tank 21 and a recovery tank 22, and the cleaning liquid tank 21 and the recovery tank 22 are integrally formed. The motor assembly 3 and the water tank assembly 2 are distributed along the length direction of the wet cleaning device 100, and the cleaning liquid tank 21 and the recovery tank 22 are distributed along the width direction of the wet cleaning device 100. In this way, the overall weight distribution can be made more uniform. At the same time, the cleaning liquid tank 21 and the recovery tank 22 are integrally formed, which is more convenient for users to fill clean water and clean sewage.

[0045] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described here.

Claims

1. A motor assembly, characterized in that: include: A motor body, used for generating a suction airflow; A motor inner shell is arranged on the outer periphery of the motor body, the motor inner shell defines a first accommodation space, the motor inner shell includes an upper inner shell and a lower inner shell butted against each other, a first sealing member is arranged between the upper inner shell and the lower inner shell, and the first sealing member isolates the first accommodation space into two independent spaces; Wherein, the butt joint end of the upper inner shell includes an inner butt joint portion and an outer butt joint portion, the inner butt joint portion and the motor body are sealed by part of the first seal, and the outer butt joint portion and the lower inner shell are sealed by part of the first seal.

2. The motor assembly according to claim 1, characterized in that It also includes a motor housing arranged on the outer periphery of the motor inner shell, the motor housing includes a lower housing and a first housing, and the lower housing and the first housing are sealed by a part of the first sealing member.

3. The motor assembly according to claim 2, characterized in that The first shell includes an upper shell and a middle shell, and the upper shell and the lower shell are sealed by a second seal. At the same time, one end of the second seal contacts the upper inner shell to form an independent space between the first seal, the second seal, the upper inner shell and the middle shell.

4. The motor assembly according to claim 2 or 3, characterized in that: The first sealing member is provided with a shock absorbing groove, and the shock absorbing groove is arranged between the lower inner shell and the motor body.

5. The motor assembly according to claim 3, characterized in that The motor assembly includes a cooling air duct and a suction air duct, the cooling air duct includes a cooling air inlet duct and a cooling air outlet duct, the cooling air inlet duct is defined by the upper outer shell, the upper inner shell and the second seal; the cooling air outlet duct is defined by the upper inner shell, the middle outer shell, the first seal and the second seal.

6. The motor assembly according to claim 2 or 3, characterized in that: A portion of the main air outlet is defined between the lower inner shell and the lower outer shell.

7. A wet cleaning device, characterized in that: It includes a main body, and the motor assembly as described in any one of claims 1 to 6 is located in the main body; the main body also defines a first air outlet and a second air outlet, the first air outlet is fluidly connected to the main air outlet of the motor assembly, and the second air outlet is fluidly connected to the cooling air outlet of the motor.

8. The wet cleaning device according to claim 7, characterized in that: It also includes a water tank assembly, which includes a cleaning liquid tank and a recovery tank, and the cleaning liquid tank and the recovery tank are integrally formed.

9. The wet cleaning device according to claim 8, characterized in that: The motor assembly and the water tank assembly are distributed along the length direction of the wet cleaning device, and the cleaning liquid tank and the recovery tank are distributed along the width direction of the wet cleaning device.

10. The wet cleaning device according to claim 7, characterized in that: It also includes a suction duct located upstream of the motor assembly, and a first air outlet of the first air outlet duct and a second air outlet of the second air outlet duct are respectively located on both sides of the suction duct.

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