Impeller cover structure with water-proof structure and water gate motor with the impeller cover structure

Abstract

The utility model relates to an impeller cover structure with a water-proof structure and a water gate motor installed with the impeller cover structure, including an impeller cover body and a water gate cover connected to the impeller cover body; wherein, an air inlet is provided on the bottom surface of the impeller cover body, an air outlet is provided on the side of the impeller cover body, a flat portion is provided at the air inlet of the impeller cover body, an outer wall of the flat portion is connected to a U-shaped bending portion, a U-shaped groove is formed by the U-shaped bending portion, and the direction of the U-shaped groove is toward a side away from the impeller cover body, an annular groove is provided at the edge position of the circumferential shell of the water gate cover, and the U-shaped groove and the annular groove are embedded together. The impeller cover structure with a water-proof structure of the utility model can effectively solve the problem of water entering the gap between the water gate cover and the motor wind cover by embedding the impeller cover body and the water gate cover with each other, and the two cooperate with each other to form a high-efficiency waterproof structure. Compared with the existing impeller cover structure, it can effectively solve the problem of water entering the gap between the water gate cover and the motor wind cover.

Description

Technical Field

[0001] The utility model relates to the technical field of motor accessories, in particular to an impeller cover structure with a water-isolating structure and a water gate motor installed with the impeller cover structure. Background Art

[0002] In the field of modern series-excited vacuum cleaner motor technology, mainstream motor designs can be summarized into two categories: bracket type and housing type. Among them, bracket type motors are further divided into dry motors designed for dry environments and wet-dry dual-purpose motors compatible with dry and wet environments according to their applicable environments. In response to the changing operating conditions, bracket type wet-dry dual-purpose motors are given a variety of special structures, such as filter structures, dust net structures, drain valve structures, and water gate structures, to enhance the efficiency and versatility of the motor. Motors with water gate covers are usually called water gate motors.

[0003] The waterproof effect of the existing water gate motor mainly relies on the water gate cover being connected to the motor through the water gate connection structure and rotating at high speed to achieve waterproofing. Because of the existence of the water gate cover, the water droplets splashed in from the air inlet are blocked by the high-speed rotation of the water gate cover to achieve waterproofing. The motor water gate and the water gate cover cooperate in a snap-fit ​​manner, thereby improving the waterproof effect of the entire water gate structure; however, apart from the water gate cover, there is still a gap between the water gate cover and the wind cover of the water gate motor (such as Figure 2-4 As shown in the figure), when the motor and the water gate cover are too large, the gap between them will become larger when the dimensions are matched, causing water to enter the water gate motor and affecting the normal operation of the motor. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is to overcome the problem in the prior art that the fit between the impeller cover and the water gate cover is not high enough, which easily causes water to enter the motor.

[0005] In order to solve the above technical problems, the utility model provides an impeller cover structure with a water-proof structure, comprising: an impeller cover body and a water gate cover connected to the impeller cover body; wherein, an air inlet is provided on the bottom surface of the impeller cover body, an air outlet is provided on the side of the impeller cover body, a flat mouth portion is provided at the air inlet of the impeller cover body, an outer wall of the flat mouth portion is connected with a U-shaped bending portion, a U-shaped groove is formed by the U-shaped bending portion, and the direction of the U-shaped groove is toward the side away from the impeller cover body, an annular groove is provided at the edge position of the circular outer shell of the water gate cover, and the U-shaped groove and the annular groove are embedded with each other.

[0006] In one embodiment of the utility model, an annular convex portion is formed on the outer wall of the water gate cover, the annular convex portion is coaxially arranged with the water gate cover, and the annular convex portion is arranged in the U-shaped groove.

[0007] In one embodiment of the utility model, an arc-shaped transition portion is provided on the outer wall of the end of the impeller cover body close to the water gate cover, and the flat mouth portion is connected to the outer end of the arc-shaped transition portion.

[0008] In one embodiment of the present invention, the U-shaped bending portion includes a connection portion 1, a connection portion 2 and a connection portion 3, and a U-shaped groove is formed between the connection portion 1, the connection portion 2 and the connection portion 3.

[0009] In one embodiment of the utility model, the connection part three is arranged in the annular groove, a gap one is formed between the annular protrusion and the connection part one, a gap two is formed between the end face of the annular protrusion and the connection part two, a gap three is formed between the annular protrusion and the connection part three, and a gap four is formed between the end face of the connection part three and the bottom face of the annular groove.

[0010] In an embodiment of the present invention, at least one water retaining protrusion is provided on an end surface of the connecting portion 1 facing the annular protrusion, and the water retaining protrusion is located in the gap 1.

[0011] In an embodiment of the present utility model, two water retaining protrusions are provided, and a plurality of water leakage holes are provided on the water retaining protrusion away from the second connecting portion.

[0012] The utility model provides a water gate motor installed with the above-mentioned impeller cover structure, comprising a driving motor, a stator impeller and a movable impeller, the impeller cover structure is sleeved on the outside of the movable impeller, the impeller cover body in the impeller cover structure is fixedly connected to the stator impeller, the output shaft of the driving motor passes through the stator impeller and is respectively fixedly connected to the movable impeller and the water gate cover, the movable impeller rotates inside the impeller cover body, and the water gate cover rotates outside the impeller cover body.

[0013] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0014] The impeller cover structure with a water-proof structure and the water gate motor installed with the impeller cover structure described in the utility model have a U-shaped groove with a groove structure added at the air inlet of the impeller cover body. The U-shaped groove can fit the outer gear at the bottom of the water gate cover, so that the outer gear at the bottom of the water gate cover is no longer exposed to the outside world. Compared with the existing impeller cover structure, the flap of the impeller cover body of the new structure is embedded in the groove of the water gate cover, and the groove at the bottom of the water gate cover is also embedded in the groove of the impeller cover body. The two are embedded with each other to form an efficient and stable waterproof structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0016] Figure 1It is a structural schematic diagram of an impeller cover structure with a water-isolating structure and a water gate motor embodiment 1 installed with the impeller cover structure in a preferred embodiment of the utility model;

[0017] Figure 2 It is the appearance diagram of the water gate motor in the prior art;

[0018] Figure 3 It is a cross-sectional view of a water gate motor in the prior art;

[0019] Figure 4 for Figure 3 A partial enlarged view of the middle A;

[0020] Figure 5 It is a structural schematic diagram of an impeller cover structure with a water-isolating structure in a preferred embodiment of the utility model and a water gate motor embodiment 2 in which the impeller cover structure is installed;

[0021] Figure 6 In the preferred embodiment of the utility model Figure 5 A partial enlarged view of point D in the middle.

[0022] Explanation of the reference numerals in the accompanying drawings in the specification: water gate cover 1, annular groove 11, annular convex portion 12, gap one 121, gap two 122, gap three 123, gap four 124, impeller cover 2, flat mouth portion 21, U-shaped bending portion 22, connection portion one 221, connection portion two 222, connection portion three 223, U-shaped groove 23, arc-shaped transition portion 24. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention. Example

[0024] Reference Figure 1 As shown, the impeller cover structure with a water-proof structure of the utility model comprises: an impeller cover body 2 and a water gate cover 1 connected to the impeller cover body; wherein, an air inlet is provided on the bottom surface of the impeller cover body 2, an air outlet is provided on the side surface of the impeller cover body, a flat mouth portion 21 integrally formed with the impeller cover body is provided on the surface of the impeller cover body at the air inlet, a U-shaped bending portion 22 is connected to the outer wall of the flat mouth portion 21 close to one side of the flat mouth portion 21, the flat mouth portion and the U-shaped bending portion are integrally formed, a U-shaped groove 23 is formed by the U-shaped bending portion 22, and the direction of the U-shaped groove 23 is toward the side away from the impeller cover body 2,

[0025] At the same time, an annular groove is provided at the edge of the circumferential outer shell of the water gate cover, and the U-shaped groove 23 and the annular groove 11 are embedded with each other to achieve waterproofing.

[0026] In the present application, a flat mouth portion 21 and a U-shaped bending portion 22 are added to the outside of the water gate cover 1. Most of the water splashed from the outside will first drip downward through the flat mouth portion 21, and the water entering the gap between the water gate cover and the impeller cover body will also drip due to a layer of blocking, which can effectively improve the waterproof effect. In contrast, the existing impeller cover structure does not have this waterproof structure. Due to the arc-shaped surface guidance on the surface of the impeller cover body, the external moisture can be directly splashed into the gap between the water gate cover 1 and the impeller cover body 2. If there are too many water droplets, they will be directly sucked into the motor, causing water to enter the motor, affecting the normal operation and life of the motor.

[0027] In the above structure, an annular protrusion 12 is formed on the outer wall of the water gate cover 1, and the annular protrusion 12 is coaxially arranged with the water gate cover 1, and the thickness of the annular protrusion 12 is smaller than the thickness of the U-shaped groove 23, so that the annular protrusion 12 can be inserted into the U-shaped groove 23.

[0028] In the above structure, the outer wall of the end of the impeller cover body 2 close to the water gate cover 1 is provided with an arc-shaped transition portion 24, and the flat mouth portion 21 is integrally formed with the outer end of the arc-shaped transition portion 24. The arc-shaped transition portion 24 is provided as an arc-shaped surface structure, and by providing the arc-shaped surface structure, water droplets can be guided to drip through the arc-shaped surface structure, thereby draining water faster.

[0029] In the above structure, the U-shaped bending portion 22 includes an integrally formed connection portion 1 221, a connection portion 222 and a connection portion 3 223, one end of the connection portion 1 221 and the end of the flat portion 21 away from the arc-shaped transition portion 24 are integrally formed, the connection portion 1 221 and the connection portion 3 223 are symmetrically and parallelly arranged, the connection portion 222 is arranged between the connection portion 1 221 and the connection portion 3 223, and a U-shaped groove 23 is formed between the connection portion 1 221, the connection portion 222 and the connection portion 3 223. The connection portion 1 221 and the flat portion 21 are arranged vertically.

[0030] In the above structure, a gap 121 is formed between the annular protrusion 12 and the first connection part 221, a gap 122 is formed between the end surface of the annular protrusion 12 and the second connection part 222, and a gap 123 is formed between the annular protrusion 12 and the third connection part 223. A gap 124 is formed between the end surface of the third connection part 223 and the bottom surface of the annular groove 11. By forming the gap, the rotation of the water gate cover will not be affected, so that the water gate cover will not interfere with the impeller cover body 2 when rotating.

[0031] An improved impeller cover structure with a water-proof structure and a water gate motor installed with the impeller cover structure have a groove structure U-shaped groove 23 added at the air inlet of the impeller cover body 2, and the U-shaped groove 23 can fit the outer gear at the bottom of the water gate cover 1, so that the outer gear at the bottom of the water gate cover 1 is no longer exposed to the outside world. Compared with the existing impeller cover structure, the impeller cover flap of the new structure is embedded in the groove of the water gate cover, and the groove at the bottom of the water gate cover 1 is also embedded in the groove of the impeller cover, and the two are embedded with each other to form an efficient and stable waterproof structure.

[0032] When the sluice gate motor is working, the motor rotor rotates to drive the sluice gate cover 1 to rotate at high speed, and external water droplets splash onto the bottom of the sluice gate cover 1 and the opening of the impeller cover 2. Water cannot directly enter the gaps between the two, namely gap 121, gap 2 122, gap 3 123 and gap 4 124. Water will be blocked outside by the rotating centrifugal force of the sluice gate cover 1 and the gravity of the water droplets themselves, thus achieving a good waterproof effect. In contrast, with the existing impeller cover structure, water droplets will still enter the gap between the sluice gate cover 1 and the impeller cover 2 when the motor is running. When the gap is too large, the waterproof effect is poor.

[0033] The improved impeller cover structure with a water-isolating structure has an additional flat-end structure portion 21 outside the newly added circle of U-shaped grooves 23, which is equivalent to adding another circle of flat ends of a certain size outside the U-shaped grooves 23, and then connecting the arc-shaped transition portion 24 of the impeller cover. With this circle of horizontal structure, most of the water splashed from the outside will be blocked and intercepted.

[0034] The impeller cover structure with a water-proof structure and the water gate motor equipped with the impeller cover structure of the utility model have the following advantages:

[0035] ① Part of the water splashes onto the curved surface of the impeller cover body 2, and then flows to the flat mouth under the action of gravity. At this time, the water will stop without being affected by external forces. When enough water is collected, it will fall to the outside, thus blocking the water;

[0036] ② Another part of the water will splash up from just below the flat mouth and will also be intercepted on the U-shaped groove 23. When enough water is collected, it will fall to the outside, thereby blocking the water. Example

[0037] Based on the structure of the first embodiment, refer to Figure 5 , 6 As shown, at least one water retaining protrusion 224 is fixedly provided on the surface of one side of the connecting portion 221 facing the annular protrusion 12, and the water retaining protrusion 224 is located in the gap 121. Preferably, two water retaining protrusions 224 are provided to form a double-layer water-blocking structure, and the thickness of the water retaining protrusion 224 is less than the thickness of the gap 121, so as not to affect the rotation of the water gate cover 1.

[0038] Furthermore, the water retaining protrusion 224 is made of the same material as the impeller cover body 2 and is fixed to the surface of the connecting portion 1 221 by gluing, welding or integral molding.

[0039] A water retaining block 224 is added to the groove, and the two layers of water retaining blocks 224 can further prevent water from entering. At the same time, a plurality of water leakage holes (not shown in the figure) are opened on the water retaining block 224 away from the second connection part 222, so that water will not gather between the two water retaining blocks 224. Example

[0040] A water gate motor with the impeller cover structure installed includes a driving motor, a fixed impeller and a movable impeller, the impeller cover structure is sleeved outside the movable impeller, the impeller cover body is fixedly connected to the fixed impeller in the impeller cover structure, the output shaft of the driving motor passes through the fixed impeller and is respectively fixedly connected to the movable impeller and the water gate cover, the movable impeller and the water gate cover are driven to rotate by the output shaft of the driving motor, the movable impeller rotates inside the impeller cover body, and the water gate cover rotates outside the impeller cover body. The impeller cover structure is the impeller cover structure with a water-isolating structure as described in Embodiment 1 or Embodiment 2.

[0041] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. An impeller cover structure with a water-isolating structure, characterized in that: It includes an impeller cover body and a water gate cover connected to the impeller cover body; wherein, an air inlet is provided on the bottom surface of the impeller cover body, an air outlet is provided on the side of the impeller cover body, a flat mouth portion is provided at the air inlet of the impeller cover body, an outer wall of the flat mouth portion is connected to a U-shaped bending portion, a U-shaped groove is formed by the U-shaped bending portion, and the direction of the U-shaped groove is toward the side away from the impeller cover body, and an annular groove is provided at the edge position of the circular outer shell of the water gate cover, and the U-shaped groove and the annular groove are embedded with each other.

2. The impeller cover structure with a water-isolating structure according to claim 1, characterized in that: An annular convex portion is formed on the outer wall of the water gate cover, the annular convex portion is coaxially arranged with the water gate cover, and the annular convex portion is arranged in the U-shaped groove.

3. The impeller cover structure with a water-isolating structure according to claim 2, characterized in that: An arc-shaped transition portion is arranged on the outer wall of the end portion of the impeller cover body close to the water gate cover, and the flat-mouth portion is connected to the outer end portion of the arc-shaped transition portion.

4. The impeller cover structure with a water-isolating structure according to claim 2, characterized in that: The U-shaped bending portion includes a connecting portion 1, a connecting portion 2 and a connecting portion 3, and a U-shaped groove is formed between the connecting portion 1, the connecting portion 2 and the connecting portion 3.

5. The impeller cover structure with a water-isolating structure according to claim 4, characterized in that: The connection part three is arranged in the annular groove, a gap one is formed between the annular convex part and the connection part one, a gap two is formed between the end surface of the annular convex part and the connection part two, a gap three is formed between the annular convex part and the connection part three, and a gap four is formed between the end surface of the connection part three and the bottom surface of the annular groove.

6. The impeller cover structure with a water-isolating structure according to claim 5, characterized in that: At least one water retaining protrusion is disposed on an end surface of the connecting portion 1 facing the annular protrusion, and the water retaining protrusion is located in the gap 1.

7. The impeller cover structure with a water-isolating structure according to claim 6, characterized in that: The water retaining protrusions are provided in two pieces, and a plurality of water leakage holes are provided on the water retaining protrusion away from the second connecting part.

8. A water gate motor equipped with an impeller cover structure as claimed in any one of claims 1 to 7, characterized in that: It includes a driving motor, a stator and a movable impeller, the impeller cover structure is sleeved on the outside of the movable impeller, the impeller cover body is fixedly connected to the stator impeller in the impeller cover structure, the output shaft of the driving motor passes through the stator impeller and is respectively fixedly connected to the movable impeller and the water gate cover, the movable impeller rotates inside the impeller cover body, and the water gate cover rotates outside the impeller cover body.

Images