Electronic water pump and automobile

Abstract

The electronic water pump comprises a water pump body and a rear cover buckled to the rear end of the water pump body, the rear cover comprises a main body, the main body is buckled to the water pump body, the outer edge of the main body is provided with a protruding ring matched with the water pump body, the protruding ring is provided with an ultrasonic welding wire, and the middle of the main body is sunken in the direction away from the water pump body; a hollow cavity is formed; the female plug is arranged on the outer side of the bottom of the main body and comprises a shell integrally formed with the main body and an insertion piece arranged in the shell, and the insertion piece penetrates through the main body and extends into the hollow cavity; when the rear cover is matched with the water pump body, the inserting piece is inserted into a PCB of the water pump body, so that the inserting piece is electrically connected with the PCB. According to the electronic water pump, the rear cover has multiple functions and is convenient to machine and easy and stable to assemble with the water pump body, and the production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile parts, and in particular to an electronic water pump. In addition, the present application also relates to an automobile comprising the electronic water pump. Background Art

[0002] In the field of new energy vehicles, electronic water pumps have gradually replaced traditional mechanical water pumps, delivering coolant to the vehicle's thermal management system, taking away most of the heat generated by the vehicle's drive motor, battery and control module, and providing thermal fluid for the heater system, ensuring that the vehicle's electric drive system is in the optimal operating temperature range and improving the reliability and safety of new energy vehicles.

[0003] However, when the back cover of the existing electronic water pump is assembled with the shell, the assembly effect is poor and the stability is low, which affects the production effect. At the same time, the back cover only plays the role of connecting with the shell and wrapping the internal structure of the shell, and the role is relatively simple.

[0004] Therefore, in view of the above technical problems, how to improve the assembly effect of the back cover and the housing and increase the function of the back cover are technical problems that technical personnel in this field need to solve. Utility Model Content

[0005] The purpose of the present application is to provide an electronic water pump, the rear cover of which is ultrasonically welded to the outer shell, which is simple and stable to assemble, thereby improving the assembly efficiency, and a female plug is arranged on the main body to facilitate the external power supply of the PCB board inside the water pump body.

[0006] To achieve the above-mentioned purpose, the present application provides an electronic water pump, comprising a water pump body and a rear cover buckled at the rear end of the water pump body, characterized in that the rear cover comprises:

[0007] A main body is buckled on the water pump body, the outer edge of the main body is provided with a raised ring matched with the water pump body, the raised ring is provided with an ultrasonic welding line, and the middle part of the main body is recessed in a direction away from the water pump body to form a hollow chamber;

[0008] A female plug is arranged outside the bottom of the main body, comprising a shell formed integrally with the main body and an insert arranged in the shell, wherein the insert passes through the main body and extends into the hollow chamber;

[0009] When the rear cover is matched with the water pump body, the plug-in piece is inserted into the PCB board of the water pump body to realize the electrical connection between the plug-in piece and the PCB board.

[0010] Preferably, the main body and the shell are an integral injection-molded structure, and the insert is injection-molded on the main body.

[0011] Preferably, the side wall of the main body is provided with a plurality of notches so that the main body and external parts can be riveted together when assembled.

[0012] Preferably, a sealing groove is provided on the outer periphery of the side wall of the main body, and a sealing ring is filled in the sealing groove to ensure the sealing performance when the main body and parts are assembled.

[0013] Preferably, the water pump body comprises a shell, the shell is provided with an annular groove matched with the raised ring, and the raised ring is welded in the annular groove by ultrasonic welding.

[0014] Preferably, the water pump body further comprises:

[0015] A volute, arranged on the front end of the housing, used for the water pump to draw liquid and supply liquid;

[0016] The power source is arranged in the shell and is used to provide power for the water pump to draw and supply liquid, and comprises a rotor and a stator matched with the rotor.

[0017] Preferably, the PCB board is also electrically connected to the rotor and the stator, and is used to provide electrical energy to the rotor and the stator to control the movement of the rotor.

[0018] Preferably, the female plug cooperates with a plug connected to an external power source to power the PCB board.

[0019] An automobile comprises the electronic water pump described in any one of the above items.

[0020] Compared with the above-mentioned background technology, the electronic water pump of the present application includes a water pump body and a back cover snapped on the rear end of the water pump body, the back cover includes a main body and a female plug, the outer edge of the main body is provided with a raised ring that cooperates with the water pump body, and an ultrasonic welding wire is provided on the raised ring. The main body is ultrasonically welded to the water pump body, which is simple to assemble and easy to operate. The product production has high stability, reduces production costs, and improves production efficiency.

[0021] The middle of the main body is recessed in the direction away from the water pump body to form a hollow chamber, and the female plug is arranged on the outside of the bottom of the main body, including a shell formed integrally with the main body and a plug arranged in the shell, and the plug passes through the main body and extends into the hollow chamber. When the back cover is matched with the water pump body, one end of the plug is inserted into the PCB board of the water pump body, and the other end of the plug is located outside the main body, which is convenient for the male plug to be inserted into the female plug, thereby supplying power to the PCB board. Therefore, the electronic water pump arranged in the above manner has more functions in its back cover, is easy to process, and is simple and stable to assemble with the water pump body, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the back cover provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the side structure of the rear cover provided in an embodiment of the present application;

[0025] Figure 3 A cross-sectional view of a rear cover provided in an embodiment of the present application;

[0026] Figure 4 This is a schematic diagram of the structure of the electronic water pump provided in an embodiment of the present application.

[0027] In the figure: 1, main body 11, notch 12, sealing groove 13, raised ring 14, ultrasonic welding wire 15, hollow chamber 2, female plug 21, shell 22, plug 3, volute 4, rotor 5, stator 6, shell 7, PCB board. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0029] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0030] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] In this embodiment, an electronic water pump is provided, which includes a water pump body and a rear cover buckled on the rear end of the water pump body to form a complete water pump structure. Figure 1 The back cover includes a main body 1 and a female plug 2. Generally speaking, the back cover structure of the electronic water pump is a cylindrical or disc structure, which cooperates with the outer shell 6 of the water pump body to achieve assembly of the two.

[0032] The main body 1 of the present application is a columnar structure, that is, the main body 1 is buckled on the housing 6, and a raised ring 13 that cooperates with the water pump body is arranged on the outer edge of the main body 1 with an opening side. Figure 2 The raised ring 13 is provided with an ultrasonic welding line 14. When the water pump body is assembled, an ultrasonic welding fastening method is adopted, which is simple to assemble, easy to operate and has high assembly stability.

[0033] The main body 1 has a concave portion in the middle portion away from the water pump body to form a columnar structure with a hollow chamber 15. Figure 3 , and the end of the main body 1 facing away from the outlet side is a closed end.

[0034] The female plug 2 is arranged outside the bottom of the main body 1, specifically located on the closed end side of the main body 1, please refer to Figures 1 to 3 The female plug 2 includes a shell 21 integrally formed with the main body 1 and an insert 22 disposed in the shell 21 , and the insert 22 penetrates the main body 1 and extends into the hollow chamber 15 , that is, the insert 22 penetrates the closed end of the main body 1 .

[0035] Please refer to Figure 4 When the rear cover is matched with the water pump body, the plug-in piece 22 can be inserted into the PCB board 7 of the water pump body, thereby realizing the electrical connection between the plug-in piece 22 and the PCB board 7 .

[0036] It should be noted that the insert 22 is a metal conductive structure, thereby providing an electrical connection function, which will not be described in detail here.

[0037] In summary of the above embodiments, the present application utilizes the ultrasonic welding wire 14 set on the raised ring 13, and the main body 1 is ultrasonically welded on the water pump body, which is simple to assemble, easy to operate, and has high stability in product production, which reduces production costs and improves production efficiency. The female plug 2 is set on the outside of the bottom of the main body 1, including a shell 21 integrally formed with the main body 1 and a plug 22 set in the shell 21, and the plug 22 passes through the main body 1 and extends into the hollow chamber 15. When the back cover is matched with the water pump body, one end of the plug 22 is inserted into the PCB board 7 of the water pump body, and the other end of the plug 22 is located on the outside of the main body 1, which is convenient for the male plug to be inserted into the female plug 2, thereby supplying power to the PCB board 7. Therefore, the electronic water pump set in the above manner has more back cover functions, is easy to process, and is simple and stable to assemble with the water pump body, which improves production efficiency.

[0038] In addition, the main body 1 and the shell 21 of the present application are an integral injection-molded structure, and the insert 22 is injection-molded on the main body 1. Through the injection molding process, no other additional processing methods are required, and the manufacturing efficiency is high and the cost is low. The insert 22 can be placed in the mold and injection-molded together with the main body 1, which reduces the production cost, avoids subsequent assembly, and improves production efficiency.

[0039] At the same time, a plurality of notches 11 are provided on the side wall of the main body 1. Figure 1 and Figure 2 The slot 11 is designed to perform riveting when assembling external parts. The boss of the external part is pressed into the slot 11 to achieve the purpose of fastening and assembly. The number of slots 11 can be increased or decreased according to actual assembly requirements. The shape of the slot 11 matches the shape of the boss of the external part, and will not be described in detail here.

[0040] A sealing groove 12 may be opened on the outer periphery of the side wall of the main body 1, and a sealing ring may be filled in the sealing groove 12. When other parts are assembled, after the sealing ring is installed, the main body 1 and the parts are sealed, and the sealing performance is excellent.

[0041] Please refer to Figure 4 The water pump body of the present application includes an outer shell 6, a volute 3 and a power source. The shape and material of the outer shell 6 are not restricted too much here, and it is sufficient to ensure that it can correspond to the raised ring 13 on the main body 1.

[0042] Furthermore, in order to improve the stability and convenience of assembly between the shell 6 and the main body 1, an annular groove matching with the raised ring 13 is opened on the shell 6, that is, the raised ring 13 is embedded in the annular groove, and the raised ring 13 is ultrasonically welded in the annular groove to improve the assembly stability of the two.

[0043] The volute 3 is arranged at the front end of the housing 6, and is used for the water pump to draw liquid and supply liquid. The specific structure and arrangement method can refer to the existing technology, and will not be repeated here. The power source is located in the housing 6, including the rotor 4 and the stator 5 matched with the rotor 4. The rotor 4 moves to drive the driving mechanism such as the blades to achieve the purpose of drawing liquid and supplying liquid.

[0044] On this basis, the PCB board 7 also needs to be electrically connected to the rotor 4 and the stator 5, so as to provide electrical energy to the rotor 4 and the stator 5 to realize the movement of the rotor 4. The female plug 2 cooperates with the plug connected to the external power supply to energize the PCB board 7.

[0045] The present application also provides a car, which includes any of the above-mentioned electronic water pumps and other necessary components of the car, which will not be described here in detail and can be referred to the prior art.

[0046] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0047] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. An electronic water pump, comprising a water pump body and a rear cover snapped onto the rear end of the water pump body, characterized in that: The back cover comprises: A main body is buckled on the water pump body, the outer edge of the main body is provided with a raised ring matched with the water pump body, the raised ring is provided with an ultrasonic welding line, and the middle part of the main body is recessed in a direction away from the water pump body to form a hollow chamber; A female plug is arranged outside the bottom of the main body, comprising a shell formed integrally with the main body and an insert arranged in the shell, wherein the insert passes through the main body and extends into the hollow chamber; Wherein, when the rear cover is matched with the water pump body, the plug-in piece is inserted into the PCB board of the water pump body to realize the electrical connection between the plug-in piece and the PCB board.

2. The electronic water pump according to claim 1, characterized in that: The main body and the shell are an integral injection-molded structure, and the insert is injection-molded on the main body.

3. The electronic water pump according to claim 1, characterized in that: The side wall of the main body is provided with a plurality of notches so that the main body and external parts can be riveted together when assembled.

4. The electronic water pump according to claim 1, characterized in that: A sealing groove is provided on the outer periphery of the side wall of the main body, and a sealing ring is filled in the sealing groove to ensure the sealing performance when the main body and parts are assembled.

5. The electronic water pump according to any one of claims 1 to 4, characterized in that: The water pump body comprises a shell, the shell is provided with an annular groove matched with the raised ring, and the raised ring is welded in the annular groove by ultrasonic welding.

6. The electronic water pump according to claim 5, characterized in that: The water pump body also includes: A volute, arranged at the front end of the housing, used for the water pump to draw liquid and supply liquid; The power source is arranged in the shell and is used to provide power for the water pump to draw and supply liquid, and comprises a rotor and a stator matched with the rotor.

7. The electronic water pump according to claim 6, characterized in that: The PCB board is also electrically connected to the rotor and the stator, and is used to provide electrical energy to the rotor and the stator to control the movement of the rotor.

8. The electronic water pump according to claim 7, characterized in that: The female plug cooperates with a plug connected to an external power source to power the PCB board.

9. A car, characterized in that: The electronic water pump comprises any one of claims 1 to 8.

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