CN210518026U

CN210518026U - Electronic water pump

Info

Publication number: CN210518026U
Application number: CN201921610448.XU
Authority: CN
Inventors: 刘一凡; 邹志; 欧耀辉; 梁运晓
Original assignee: Hanyu Group JSCL
Current assignee: Hanyu Group JSCL
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-05-12
Anticipated expiration: 2029-09-25

Abstract

The embodiment of the utility model discloses an electronic water pump, which comprises a shell, and a stator assembly, a circuit board and a connecting piece which are arranged in the shell; the circuit board is provided with a grounding end, the two ends of the connecting piece are respectively a first connecting end and a second connecting end, the first connecting end is connected with the stator assembly, and the second connecting end is connected with the grounding end of the circuit board; the connecting piece is provided with the crooked section that possesses elasticity. The utility model discloses an electronic water pump passes through connecting piece department sets up the crooked section that can the compressed to make the connecting piece can be connected circuit board and stator module steadily and form ground return circuit, when electronic water pump vibrates, the connecting piece can utilize the outside swing of elastic deformation of self to form stable connection with continuation and circuit board and stator module.

Description

Electronic water pump

Technical Field

The utility model relates to an electronic water pump.

Background

In order to reduce manufacturing cost and weight of an electronic water pump used in an automobile at present, manufacturers generally replace an original aluminum material for an external structural member such as a housing and a pump cover of the water pump with a plastic (generally PPS). And inside the water pump of plastic casing, the connected mode of stator and control circuit board is the same with the water pump of metal-back: connected through a three-phase outgoing line. The control circuit board of the water pump is easy to generate stronger electromagnetic interference during operation; for the water pump with the metal shell, the external metal shell can effectively shield the electromagnetic interference generated by the circuit board; for the water pump with the plastic shell, the plastic shell can not shield interference, and when the water pump runs, normal running of other peripheral equipment is easily interfered.

The existing water pump is provided with a grounding part between the stator assembly and the circuit board to complete a grounding loop of the stator assembly and the circuit board, but the existing water pump can generate vibration in the working process, and the grounding part is easy to contact with other parts badly during vibration.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the embodiment of the utility model discloses an electronic water pump, which comprises a shell, a stator assembly, a circuit board and a connecting piece, wherein the stator assembly, the circuit board and the connecting piece are arranged in the shell; the circuit board is provided with a grounding end, the two ends of the connecting piece are respectively a first connecting end and a second connecting end, the first connecting end is connected with the stator assembly, and the second connecting end is connected with the grounding end of the circuit board; the connecting piece is provided with a bending section with elasticity; the curved section is compressed when the connector is installed.

As a further improvement of the embodiment of the utility model, the bending section includes arc type portion and two straight portions, two straight portion connect respectively in the both ends of arc type portion, and two straight portion respectively with first link and second link are connected.

As a further improvement of the embodiment of the present invention, the arc-shaped portion is C-shaped.

As a further improvement of the embodiment of the present invention, the arc-shaped portion is V-shaped.

As a further improvement of the embodiment of the present invention, the present invention further comprises an adapter plate, wherein the adapter plate is located between the circuit board and the stator assembly; the connecting piece is formed with the constant head tank, the constant head tank is located between second link and the arc portion, a part of keysets is blocked in to the constant head tank.

As a further improvement of the embodiment of the present invention, the first connection end is connected to the stator assembly through the plug-in assembly.

As a further improvement of the embodiment of the present invention, the plug-in component includes a plug hole located in the stator component and a plug head formed at the first connection end, a storage groove is provided in the plug head, a position-locking piece with elasticity is provided in the storage groove, one end of the position-locking piece is fixed on the inner wall of the storage groove, and the other end extends towards the second connection end and protrudes out of the storage groove; an inserting clamping groove is formed in the inserting hole; when the plug connector is inserted into the plug hole, the clamping sheet is clamped into the plug clamping groove.

As a further improvement of the embodiment of the present invention, the stator assembly includes a coil winding, a stator core and a framework, the framework is disposed at the stator core, and the coil winding is wound at the framework; the inserting holes are formed in the end face of the stator core.

As a further improvement of the embodiment of the present invention, the second connecting end is fixed to the circuit board by welding.

As a further improvement of the embodiment of the utility model, the surface of connecting piece is provided with spacing platform.

The utility model discloses an electronic water pump passes through connecting piece department sets up the crooked section that can the compressed to make the connecting piece can be connected circuit board and stator module steadily and form ground return circuit, when electronic water pump vibrates, the connecting piece can utilize the outside swing of elastic deformation of self to form stable connection with continuation and circuit board and stator module.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

Fig. 1 is a cross-sectional view of the electronic water pump of the present invention.

Fig. 2 is an exploded view of a part of the electronic water pump of the present invention.

Fig. 3 is a schematic diagram of a connector of the electronic water pump of the present invention.

Fig. 4 is a schematic diagram of the stator core of the electronic water pump of the present invention.

Fig. 5 is a cross-sectional view of the plug hole of the stator core of the electronic water pump of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-5, an embodiment of the present invention discloses an electronic water pump, which includes a housing 10, and a stator assembly 20, a circuit board 40 and a connecting member 30 disposed in the housing 10; the circuit board 40 is provided with a grounding end, the two ends of the connecting piece 30 are respectively a first connecting end 31 and a second connecting end 32, the first connecting end 31 is connected with the stator assembly 20, and the second connecting end 32 is connected with the grounding end of the circuit board 40; the connecting element 30 is provided with a bending section 37 having elasticity. With such an arrangement, after the stator assembly 20 and the circuit board 40 are connected to the connecting member 30, the two ends of the connecting member 30 respectively abut against the stator assembly 20 and the circuit board 40 by virtue of the elastic force generated when the bending section 37 of the connecting member 30 is subjected to vibration, so that the circuit between the circuit board 40 and the stator assembly 20 is stably connected. When the motor is in a static state after being installed, the bending section 37 is not compressed, when the motor runs, the stator and the circuit board are far away and close to each other due to vibration, the stator and the circuit board are stretched to resist tension when the stator and the circuit board are far away, and the stator and the circuit board are compressed to resist compression when the stator and the circuit board are close to each other.

In this embodiment, the bending section 37 includes an arc-shaped portion 372 and two straight portions 371, the two straight portions 371 are respectively connected to two ends of the arc-shaped portion 372, and the two straight portions 371 are respectively connected to the first connection end 31 and the second connection end 32. Through the connection effect of the two straight portions 371, when the click is shocked, the pressure applied to the first connection end 31 and the second connection end 32 of the connection member 30 is transferred to the bending portion, the two straight portions 371 press the arc-shaped portion 372, and the arc-shaped portion 372 is compressed to generate elastic force. In this embodiment, the arc 372 is C-shaped. This arrangement allows the arcuate portion 372 to better flex when compressed. In other embodiments, the arcuate portion 372 is V-shaped.

In this embodiment, the electronic water pump further includes an adapter plate 50, where the adapter plate 50 is located between the circuit board 40 and the stator assembly 20; the connecting member 30 is formed with a positioning groove 36, the positioning groove 36 is located between the second connecting end 32 and the arc-shaped portion 372, and a portion of the adapter plate 50 is snapped into the positioning groove 36. The adapter plate 50 can be fixed by a fastener in the electronic water pump, and after a part of the adapter plate 50 is clamped into the positioning groove 36, the connecting piece 30 can be positioned by the adapter plate 50, so that the relative fixation between the connecting piece 30 and the electronic water pump is further enhanced.

In this embodiment, the first connection end 31 is connected to the stator assembly 20 through a plug assembly. The plug assembly comprises a plug hole 34 positioned in the stator assembly 20 and a plug 33 formed at the first connection end 31, a containing groove 331 is formed in the plug 33, an elastic clamping sheet 332 is arranged in the containing groove 331, one end of the clamping sheet 332 is fixed on the inner wall of the containing groove 331, and the other end of the clamping sheet 332 extends towards the second connection end 32 and protrudes out of the containing groove 331; an inserting clamping groove 341 is arranged in the inserting hole 34; when the plug 33 is inserted into the plug hole 34, the position-locking piece 332 is locked into the plug-in slot 341. Through the arrangement, the plug-in connector 33 located at the first connection end 31 of the connection member 30 can be inserted into the plug-in hole 34, when the plug-in connector is inserted, the clamping sheet 332 in the accommodation groove 331 of the plug-in connector 33 is pressed by the inner wall of the plug-in hole 34 to generate compressed deformation, when the plug-in connector 33 is inserted deeper into the plug-in hole 34, the clamping sheet 332 recovers the original shape by virtue of the elastic force generated by the elastic deformation of the clamping sheet 332, and the clamping sheet 332 is clamped into the plug-in clamping groove 341 on the inner wall of the plug-in hole 34, so that the rapid fixation is completed. In other embodiments, the first connection end 31 may also be fixed by a bolt fastener or a snap. In this embodiment, the outer surface of the connecting member 30 is provided with a limiting table 35. The limiting table 35 can realize limiting behind the plug-in connector 33, and the limiting table 35 is abutted to the end face of the stator core 21 during limiting. Meanwhile, the arrangement of the limiting table 35 also facilitates a user to stably hold the connecting piece 30 during inserting and assembling.

In this embodiment, the stator assembly 20 includes a coil winding, a stator core 21 and a framework 22, the framework 22 is disposed at the stator core 21, and the coil winding is wound at the framework 22; the plug hole 34 is formed at the end face of the stator core 21. The connecting member 30 is a metal member to realize a loop connection. In this embodiment, the insertion hole 34 is disposed at an end surface of the stator core 21, which is an end surface of the stator core 21 facing the circuit board 40, so that the insertion plug 33 of the connecting member 30 can be directly inserted into the insertion hole 34.

In this embodiment, the second connecting end 32 is fixed to the circuit board 40 by welding. Such a fixing manner is convenient and fast. In the manufacturing process, the second connection end 32 may be first soldered to the ground end of the circuit board 40, and then the first connection end 31 may be inserted into the insertion hole 34.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting of the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.

Claims

1. An electronic water pump, characterized in that: the motor comprises a shell, and a stator assembly, a circuit board and a connecting piece which are arranged in the shell; the circuit board is provided with a grounding end, the two ends of the connecting piece are respectively a first connecting end and a second connecting end, the first connecting end is connected with the stator assembly, and the second connecting end is connected with the grounding end of the circuit board; the connecting piece is provided with the crooked section that possesses elasticity.

2. The electronic water pump of claim 1, wherein: the bending section comprises an arc-shaped part and two straight parts, the two straight parts are respectively connected to two ends of the arc-shaped part, and the two straight parts are respectively connected with the first connecting end and the second connecting end.

3. The electronic water pump of claim 2, wherein: the arc-shaped part is C-shaped.

4. The electronic water pump of claim 2, wherein: the arc-shaped part is V-shaped.

5. The electronic water pump of claim 2, wherein: the adapter plate is positioned between the circuit board and the stator assembly; the connecting piece is formed with the constant head tank, the constant head tank is located between second link and the arc portion, a part of keysets is blocked in to the constant head tank.

6. The electronic water pump of claim 1, wherein: the first connecting end is connected with the stator assembly through the plug-in assembly.

7. The electronic water pump of claim 6, wherein: the plug assembly comprises a plug hole positioned in the stator assembly and a plug head formed at the first connecting end, a containing groove is arranged in the plug head, an elastic clamping piece is arranged in the containing groove, one end of the clamping piece is fixed on the inner wall of the containing groove, and the other end of the clamping piece extends towards the second connecting end and protrudes out of the containing groove; an inserting clamping groove is formed in the inserting hole; when the plug connector is inserted into the plug hole, the clamping sheet is clamped into the plug clamping groove.

8. The electronic water pump of claim 7, wherein: the stator assembly comprises a coil winding, a stator core and a framework, the framework is arranged at the position of the stator core, and the coil winding is wound at the position of the framework; the inserting holes are formed in the end face of the stator core.

9. The electronic water pump of claim 1, wherein: and the second connecting end is welded and fixed with the circuit board.

10. The electronic water pump of claim 1, wherein: the outer surface of the connecting piece is provided with a limiting table.