Water inlet-outlet structure and electronic water pump applying same

Abstract

The utility model discloses a water inlet-outlet structure and an electronic water pump using the same. The water inlet-outlet structure at least comprises a pump cover component and a pump shell component, the pump cover component is provided with a middle shaft, and the inner side of the pump cover component is configured to be an impeller cavity. A water inlet and a water outlet which are communicated with the inner side and the outer side of the impeller cavity are formed in the pump cover component, the water inlet and / or the water outlet deviate from a middle shaft of the pump cover component, or an included angle is formed between the water inlet and / or the water outlet and the middle shaft of the pump cover component; the pump cover component covers the pump shell component, and the pump cover component is configured to allow the pump cover component to rotate relative to the pump shell component with the center axis of the pump cover component as the axis, so that the position / direction of a water inlet and / or a water outlet of the pump cover component is suitable for being changed. According to the electronic water pump, the position / direction of the water inlet and / or the water outlet of the electronic water pump can be quickly adjusted without disassembling the body of the electronic water pump, so that the time consumed during assembly and maintenance of the electronic water pump is saved, and the secondary development and manufacturing cost of the electronic water pump is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic water pump and its spare part technical field, concretely is a water inlet -water outlet structure and the electronic water pump of applying it. BACKGROUND

[0002] Electronic water pump has higher output efficiency and can realize accurate flow control, therefore, electronic water pump is widely used in household appliances, automobile and industrial equipment, for example, air conditioner, water heating mattress and humidifying electric appliance and so on household appliances, in order to realize accurate liquid circulation / discharge function, electronic water pump is equipped more and more currently.

[0003] Electronic water pump has at least one water inlet and at least one water outlet, the water inlet and water outlet of the electronic water pump commonly used in prior art will be configured as the short tubular structure that communicates the inside and outside of impeller chamber.

[0004] The electronic water pump of above-mentioned structure, for the consideration of fluid mechanics performance, its water outlet usually will not be configured in the central axis position of electronic water pump, that is, the water outlet of electronic water pump, usually will be configured as deviating from the central axis position of electronic water pump, with the central axis of electronic water pump as the shaft, when rotating the whole electronic water pump, the water outlet of electronic water pump will also be displaced / reversed accordingly.

[0005] In the application scene (for example household appliances, automobile and industrial equipment etc.) of electronic water pump, the installation position reserved for electronic water pump is usually narrow, when assembling, overhauling electronic water pump, if the water outlet position / direction of electronic water pump needs to be adjusted, then the whole electronic water pump (even the surrounding spare parts) needs to be disassembled, obviously needs to consume a lot of time and energy, in addition, if the installation structure of electronic water pump is asymmetric structure, then only can provide one water outlet position / direction for electronic water pump, when the water outlet position / direction of electronic water pump needs to be changed, electronic water pump needs to be redeveloped installation structure, improves the development cost and manufacturing cost of electronic water pump.

[0006] Summarized above, how to provide the water inlet -water outlet structure of easy adjustment position / direction for electronic water pump becomes one of the problems to be solved. INVENTION CONTENTS

[0007] The utility model discloses a water inlet -water outlet structure and the electronic water pump of applying it can provide the water inlet -water outlet structure of easy adjustment position / direction for electronic water pump.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a water inlet-outlet structure applied to an electronic water pump; the electronic water pump includes at least a pump cover component and a pump housing component; the pump cover component has a central axis, and the inner side of the pump cover component is configured as an impeller chamber; the pump cover component is respectively provided with an inlet and an outlet communicating with the inner and outer sides of the impeller chamber, and the inlet and / or the outlet are offset from the central axis of the pump cover component, or the inlet and / or the outlet have an angle with the central axis of the pump cover component; the pump cover component covers the pump housing component, and the pump cover component is configured to allow rotation relative to the pump housing component with its own central axis as the axis, so that the position / direction of the inlet and / or outlet of the pump cover component can be changed.

[0009] In the above technical solution, the water inlet of the pump cover component is configured to be coaxial with the central axis of the pump cover component.

[0010] In the above technical solution, the outlet of the pump cover component is disposed on the side of the pump cover component, and the outlet of the pump cover component is perpendicular to the central axis of the pump cover component.

[0011] In the above technical solution, a plurality of snap-fit ​​structures are distributed on the outer surface of the pump casing component along its circumferential direction; a snap claw structure is formed at the pump cover component; the snap claw structure of the pump cover component is adapted to snap onto any snap-fit ​​structure of the pump casing component, so as to allow the pump cover component to rotate relative to the pump casing component with its own central axis as the axis.

[0012] In the above technical solution, the latch structure of the pump cover component is provided with reinforcing ribs.

[0013] In the above technical solution, the locking structure of the pump casing component is provided with a limiting rib.

[0014] In the above technical solution, the water inlet of the pump cover component is provided with a water inlet grid structure at its free end.

[0015] An electronic water pump includes the aforementioned inlet-outlet structure.

[0016] In the above technical solution, the electronic water pump of this utility model further includes a motor and an impeller; the motor is housed in the pump casing component; the impeller is sleeved on the rotating shaft of the motor, and the impeller is housed in the impeller chamber of the pump cover component, so that the motor can drive the impeller to rotate in the impeller chamber of the pump cover component.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the water inlet-outlet structure of this utility model and the electronic water pump using it are configured such that the pump cover component is configured to allow rotation relative to the pump casing component with its own central axis as the axis, so that the position / direction of the water inlet and / or water outlet of the pump cover component can be changed. The position / direction of the water inlet and / or water outlet of the electronic water pump can be quickly adjusted without disassembling the body of the electronic water pump, thereby saving time during the assembly and maintenance of the electronic water pump, and saving the secondary development and manufacturing costs of the electronic water pump. Attached Figure Description

[0018] Figure 1 This is a perspective view of the electronic water pump in this utility model.

[0019] Figure 2 This is an exploded view of the electronic water pump of this utility model.

[0020] Figure 3 This is a cross-sectional view of the electronic water pump in this utility model.

[0021] The attached figures are labeled as follows: 1. Pump cover component; 101. Central shaft; 102. Impeller chamber; 103. Inlet; 103a. Inlet grid structure; 104. Outlet; 105. Claw structure; 105a. Reinforcing rib; 2. Pump casing component; 201. Clamping structure; 201a. Limiting rib; 3. Motor; 4. Impeller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This embodiment provides an inlet-outlet structure for use in an electronic water pump, which can be used as the inlet-outlet flow channel structure for the electronic water pump.

[0024] Please see Figures 1-3 The electronic water pump in this embodiment includes at least a pump cover component 1 and a pump casing component 2.

[0025] The pump cover component 1 is an integrally injection-molded engineering plastic cover component with an outer contour that is roughly circular. The pump housing component 2 is an integrally injection-molded engineering plastic shell component. In this embodiment, the pump housing component 2 is formed by a front shell and a rear shell being fastened together.

[0026] The pump cover component 1 has a central axis 101 (the central axis 101 is a virtual axis, which serves as the central axis of symmetry of the main body of the pump cover component 1), and the inner side of the pump cover component 1 is configured as an impeller chamber 102. In fact, the inner space of the pump cover component 1 is the impeller chamber 102.

[0027] The pump cover component 1 is provided with an inlet 103 and an outlet 104 that connect the inner and outer sides of the impeller chamber 102, and the inlet 103 and / or outlet 104 are offset from the central axis 101 of the pump cover component 1, or the inlet 103 and / or outlet 104 have an angle with the central axis 101 of the pump cover component 1.

[0028] The pump cover component 1 covers the pump housing component 2, and the pump cover component 1 is configured to allow rotation relative to the pump housing component 2 with its own central axis 101 as the axis, so that the position / or orientation of the inlet 103 and / or outlet 104 of the pump cover component 1 can be changed.

[0029] It should be noted that in this embodiment, the inlet 103 and the outlet 104 are both integrally formed on the pump cover component 1 and are short tubular structures that connect the inner and outer sides of the impeller chamber 102 of the pump cover component 1.

[0030] Please see Figure 1 and Figure 2 In this embodiment, the inlet 103 of the pump cover component 1 is configured to be coaxial with the central axis 101 of the pump cover component 1.

[0031] Please see Figure 1 and Figure 2 In this embodiment, the outlet 104 of the pump cover component 1 is disposed on the side of the pump cover component 1, and the outlet 104 of the pump cover component 1 is perpendicular to the central axis 101 of the pump cover component 1.

[0032] Please refer to the following: Figure 2 and Figure 3Specifically, the outer surface of the pump casing component 2 has a plurality of snap-fit ​​structures 201 distributed along its circumferential direction. In fact, each snap-fit ​​structure 201 is an integrally formed snap-fit ​​rib on the outer surface of the pump casing component 2. In this embodiment, eight snap-fit ​​structures 201 are distributed along their circumferential direction on the outer surface of the pump casing component 2, and each snap-fit ​​structure 201 has a 45° angle with each other. It is understood that in other embodiments, the snap-fit ​​structure 201 can also be a snap-fit ​​groove. Furthermore, the total number of snap-fit ​​structures 201, the angles between them, and whether they are on the pump casing... The uniform distribution and other characteristics of the outer surface of component 2 can be adjusted according to actual needs; a latching claw structure 105 is formed at the pump cover component 1. In fact, the latching claw structure 105 is an integrally formed latching claw type structure feature at the pump cover component 1. In this embodiment, two latching claw structures 105 are arranged opposite each other at the pump cover component 1; the latching claw structure 105 of the pump cover component 1 is adapted to be fastened to any of the fastening structures 201 of the pump housing component 2, so as to allow the pump cover component 1 to rotate relative to the pump housing component 2 with its own central axis 101 as the axis; please refer to in particular Figure 2 It is understood that in this embodiment, each rotation of the pump cover component 1 can change the position of the outlet 104 and rotate the direction of the outlet 104 by 45°.

[0033] The engagement of the latch structure 105 of the pump cover component 1 and the latching structure 201 of the pump housing component 2 creates a quick-assembly and disassembly structure between the pump cover component 1 and the pump housing component 2, thereby facilitating the assembly of the pump cover component 1 and making it easy to change the position / direction of the outlet 104.

[0034] Furthermore, a reinforcing rib 105a is provided at the latch structure 105 of the pump cover component 1. In this embodiment, the reinforcing rib 105a is integrally formed on both sides of the latch structure 105 and is in the same direction of extension as the latch structure 105. The reinforcing rib 105a can improve the mechanical structural strength of the latch structure 105.

[0035] Furthermore, a limiting rib 201a is provided at the snap-fit ​​structure 201 of the pump housing component 2. In this embodiment, the limiting rib 201a is integrally formed on both sides of the snap-fit ​​structure 201 and is in the same direction of extension as the snap-fit ​​structure 201. The limiting rib 201a can limit the snap claw structure 105 of the pump cover component 1 to prevent the snap claw structure 105 from dislodging.

[0036] Furthermore, the water inlet 103 of the pump cover component 1 has a water inlet grid structure 103a at its free end. In this embodiment, the water inlet grid structure 103a is integrally formed at the free end of the water inlet 103 and has several notches evenly distributed along the circumferential direction of the water inlet 103. The water inlet grid structure 103a is configured so that the liquid medium can be sucked into the water inlet 103 of the pump cover component 1 from the side, thereby improving the water intake performance of the electronic water pump.

[0037] This embodiment also provides an electronic water pump, which includes the above-described inlet-outlet structure.

[0038] Please see Figures 1-3 The electronic water pump in this embodiment also includes a motor 3 and an impeller 4.

[0039] Among them, the motor 3 is a brushless DC motor with a rotating shaft; the impeller 4 is a wheel-shaped body made of engineering plastic through injection molding, and it is equipped with several blades.

[0040] Impeller 4 is sleeved on the rotating shaft of motor 3, and impeller 4 is housed in impeller chamber 102 of pump cover component 1, so that motor 3 can drive impeller 4 to rotate in impeller chamber 102 of pump cover component 1.

[0041] In this embodiment, when the electronic water pump is in use, the motor 3 drives the impeller 4 to rotate in the impeller chamber 102 of the pump cover component 1, which generates a directional pressure difference in the impeller chamber 102 of the pump cover component 1, so that the liquid medium can be drawn into the inlet 103 of the pump cover component 1, and under the drive of the impeller 4 and the guidance of the impeller chamber 102, it is led out from the outlet 104 of the pump cover component 1, thereby realizing the basic function of the electronic water pump.

[0042] When the position and direction of the outlet 104 of the electronic water pump in this embodiment need to be adjusted, simply loosen the latch structure 105 of the pump cover component 1, rotate the pump cover component 1 by 45° or multiples of 45°, and then fasten the latch structure 105 of the pump cover component 1 to another latching structure 201 at the corresponding position of the pump housing component 2. This will change the position of the outlet 104 and rotate the direction of the outlet 104 by 45° or multiples of 45°.

[0043] The water inlet-outlet structure and the electronic water pump using it in this embodiment are configured such that the pump cover component 1 is rotatable relative to the pump housing component 2 with its own central axis 101 as the axis, so that the position / direction of the water inlet 103 and / or the water outlet 104 of the pump cover component 1 can be changed. The position / direction of the water inlet 103 and / or the water outlet 104 of the electronic water pump can be quickly adjusted without disassembling the body of the electronic water pump, thereby saving time during the assembly and maintenance of the electronic water pump, and saving the secondary development and manufacturing costs of the electronic water pump.

[0044] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water inlet-outlet structure, used in an electronic water pump; characterized in that, The electronic water pump includes at least a pump cover component and a pump casing component; The pump cover component has a central axis, and the inner side of the pump cover component is configured as an impeller chamber; The pump cover component is respectively provided with an inlet and an outlet connecting the inner and outer sides of the impeller chamber, and the inlet and / or the outlet are offset from the central axis of the pump cover component, or the inlet and / or the outlet have an angle with the central axis of the pump cover component. The pump cover member is fitted onto the pump housing member, and the pump cover member is configured to allow rotation relative to the pump housing member with its own central axis as the axis, so that the position / or orientation of the inlet and / or outlet of the pump cover member can be changed.

2. The inlet-outlet structure according to claim 1, characterized in that, The inlet of the pump cover component is configured to be coaxial with the central axis of the pump cover component.

3. The inlet-outlet structure according to claim 2, characterized in that, The outlet of the pump cover component is disposed on the side of the pump cover component, and the outlet of the pump cover component is perpendicular to the central axis of the pump cover component.

4. The inlet-outlet structure according to any one of claims 1-3, characterized in that, The outer surface of the pump casing component has a plurality of fastening structures distributed along its circumferential direction. A latch structure is formed at the pump cover component; The latch structure of the pump cover component is adapted to engage with any latch structure of the pump housing component to allow the pump cover component to rotate relative to the pump housing component with its own central axis as the axis.

5. The inlet-outlet structure according to claim 4, characterized in that, The pump cover component has reinforcing ribs at the latch structure.

6. The inlet-outlet structure according to claim 4, characterized in that, Limiting ribs are provided at the snap-fit ​​structure of the pump casing component.

7. The inlet-outlet structure according to any one of claims 1-3, characterized in that, The water inlet of the pump cover component has a water inlet grid structure at its free end.

8. An electronic water pump, characterized in that, Includes the water inlet-outlet structure as described in any one of claims 1-7.

9. The electronic water pump according to claim 8, characterized in that, It also includes the motor and impeller; The motor is housed within the pump housing component; The impeller is sleeved on the motor shaft, and the impeller is housed in the impeller chamber of the pump cover component, so that the motor can drive the impeller to rotate in the impeller chamber of the pump cover component.

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