Z-shaped automobile electronic water pump stator insert structure

Abstract

The utility model discloses a Z-shaped automobile electronic water pump stator insert structure, which relates to the field of electronic water pumps, solves the problems that the existing insert is complicated in shape and structure and relatively high in manufacturing cost, and adopts the following scheme that the Z-shaped automobile electronic water pump stator insert structure comprises an assembled stator insert; the top end of the stator insertion sheet is in hot melting connection with the insulating winding device, the stator insertion sheet comprises an upper copper sheet and a lower copper sheet, and the bottom end of the upper copper sheet is welded with the lower copper sheet in a laser welding mode; the overall structure of the stator insertion piece is in a Z shape, an insulating winding device is arranged on the outer side of the upper half portion of the stator insertion piece, a motor base is arranged on the outer side of the middle portion of the stator insertion piece, and the lower half portion of the stator insertion piece is matched with a welding groove in a PCB. According to the Z-shaped automobile electronic water pump stator insertion piece structure, through the arrangement of stator insertion piece punch forming, the design complexity is reduced, forming is simple, quality is stable, the structural design flexibility is high, and therefore the layout requirements of specifications and part replacement interference space can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic water pumps, in particular to a Z-shaped automotive electronic water pump stator insert structure. Background Art

[0002] With the rapid development of the automotive industry, especially the expansion of the market share of new energy vehicles, the requirements for the degree of intelligent electrification of automobiles are increasing, including the increasingly perfect and improved standards for the thermal management control of engines and generators. The automotive electronic water pump plays a key role in the thermal management system, because the accuracy, stability and reliability of the electronic water pump control directly affect the performance level of the thermal management system, and the controller and the motor assembly and the electrical connection between them directly affect the performance of the electronic water pump, among which the stability and safety of the electrical connection depend to a certain extent on the design of the stator insert;

[0003] After searching, the application with patent number 202021077618.5 discloses a stator fixing structure and an electronic water pump using the stator fixing structure, including a stator cavity and a plug-in bracket. The stator cavity is suitable for accommodating a stator core, and a positioning column is provided in the stator cavity along the central axis direction of the stator cavity, and the positioning column is suitable for inserting into the stator core from one end of the stator core along the axial direction of the stator core; the plug-in bracket is suitable for inserting into the stator core from the other end of the stator core along the axial direction of the stator core, and the part of the plug-in bracket inserted into the stator core is suitable for plugging and fitting with the positioning column; the plug-in bracket has a contact surface suitable for abutting the stator core;

[0004] The above application documents are installed by setting between the inserts, and the design of the stator insert must not only meet the electrical function requirements but also complete the layout in a limited space, and the structural dimensions must be reasonable. At the same time, it is possible to use conventional production processes to achieve low-cost investment in tooling equipment to achieve mass production. Therefore, the stator insert of the electronic water pump is one of the important components of the automotive electronic water pump. The material selection and structural design level not only affect the performance level of the thermal management system and the electronic water pump, but also are related to the feasibility of production and manufacturing;

[0005] The structure of the existing insert is relatively complex, the stamping operation is cumbersome, and the structural shape flexibility is low, the assembly requirements are high, and the practicality is low.

[0006] Therefore, we propose a Z-shaped automotive electronic water pump stator insert structure. Utility Model Content

[0007] In view of the deficiencies of the prior art, the utility model provides a Z-shaped automotive electronic water pump stator insert structure, which solves the problem that the prior insert has a complex shape and structure and a relatively high manufacturing cost.

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a Z-shaped automotive electronic water pump stator insert structure, including a stator insert assembled on a PCB board;

[0009] The stator insert is stamped and formed, the top of the stator insert is hot-melt connected to the insulating winding device, the stator insert comprises an upper copper sheet and a lower copper sheet, and the bottom end of the upper copper sheet is welded to the lower copper sheet by laser welding;

[0010] The overall structure of the stator insert is Z-shaped, an insulating winding device is arranged on the outer side of the upper part of the stator insert, the outer side of the middle part of the stator insert is a motor base, and the lower part of the stator insert is adapted to the welding groove on the PCB board;

[0011] The bottom end of the stator insert is fixedly welded on the PCB board through a receiving insert.

[0012] Preferably, the receiving plug-in is a Y-shaped plug-in, the top side of the receiving plug-in is fixedly welded on the bottom end of the stator plug-in, and the bottom end of the receiving plug-in is fixedly welded in the notch on the PCB board;

[0013] Among them, the provision of the receiving insert can assist the stator insert to be fixedly welded on the PCB board, thereby ensuring welding stability.

[0014] Preferably, the upper copper sheet is a vertical Z-shaped sheet, and an R-shaped sheet is fixedly mounted on the outer wall of the upper copper sheet;

[0015] The shape of the stator insert is convenient for stamping.

[0016] Preferably, the R-shaped sheet is arranged on the upper half of the stator insert sheet as a whole, and the motor wiring harness is clamped on the inner side of the R-shaped sheet;

[0017] Among them, the setting of the R-type piece facilitates the stable clamping of the motor wiring harness and increases the assembly stability.

[0018] Preferably, three groups of stator inserts are welded on the PCB board, and the three groups of stator inserts are the first insert, the second insert and the third insert from left to right, and the first insert, the second insert and the third insert correspond to the three phases U, V and W of the electrode.

[0019] Preferably, the upper copper sheet has a thickness of 1.2±0.05 mm and a width of 6.3±0.05 mm, and the lower copper sheet has a thickness of 1.0±0.05 mm and a width of 4.0±0.05 mm;

[0020] Among them, in order to meet the electrical performance requirements of carrying a maximum motor power of 480W and an input voltage of 8-36V, the definition of the size range of the plug must be sufficient to support it, while meeting the matching with the PCB socket and the difficulty of the stamping process and the requirements of the simplification of parts materials. Therefore, after comprehensive analysis, evaluation and verification, it is concluded that when the thickness of the upper copper sheet is 1.2±0.05mm and the width is 6.3±0.05mm, and the thickness of the lower copper sheet is 1.0±0.05mm and the width is 4.0±0.05mm, it can meet the electrical performance requirements and meet the stamping process and the matching with the PCB hole and the simplification of materials.

[0021] The utility model provides a Z-shaped automotive electronic water pump stator insert structure, which has the following beneficial effects:

[0022] 1. The Z-shaped automotive electronic water pump stator insert structure has reduced design complexity, simple molding and stable quality through the setting of stator insert stamping, and the structural design is highly flexible, so as to meet the layout requirements of specifications and replacement interference space, reduce manufacturing costs and difficulties, and solve the problem of complex shape and structure of existing inserts and relatively high manufacturing costs;

[0023] 2. The Z-shaped automotive electronic water pump stator insert structure can ensure the assembly stability between the stator insert and the PCB board by setting the receiving insert. At the same time, the hot-melt connection between the top of the stator insert and the insulating winding device can ensure the stability and safety of the electrical connection.

[0024] 3. The Z-shaped automotive electronic water pump stator insert structure can be designed within the existing limited space through the setting of the stator insert shape, and the limited space is utilized to achieve a reasonable structure and compact size. An R-shaped piece is designed on the upper end of the insert to meet the function of clamping the motor wiring harness to ensure practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the stator insert of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the stator insert of the utility model from the side;

[0028] Figure 4 This is a schematic diagram of the structure of the copper sheet of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the lower copper sheet of the utility model.

[0030] In the figure: 1, PCB board; 2, stator plug; 2-1, first plug; 2-2, second plug; 2-3, third plug; 21, upper copper sheet; 22, lower copper sheet; 3, receiving plug. DETAILED DESCRIPTION

[0031] 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 in 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.

[0032] See also Figure 1-5 The embodiment of the utility model provides a technical solution: a Z-shaped automotive electronic water pump stator plug structure, comprising a stator plug 2 assembled on a PCB board 1; the stator plug 2 is stamped, the top of the stator plug 2 is hot-melt connected to the insulating winding device, the stator plug 2 comprises an upper copper sheet 21 and a lower copper sheet 22, and the bottom end of the upper copper sheet 21 is welded to the lower copper sheet 22 by laser welding; the overall structure of the stator plug 2 is Z-shaped, the outer side of the upper half of the stator plug 2 is provided with an insulating winding device, the outer side of the middle part of the stator plug 2 is a motor base, and the lower half of the stator plug 2 is adapted to the welding groove on the PCB board 1; the bottom end of the stator plug 2 is fixedly welded to the PCB board 1 through a receiving plug 3;

[0033] Among them, the Z-shaped automotive electronic water pump stator insert structure, through the setting of stamping forming of the stator insert 2, has reduced design complexity, simple molding and stable quality, and high structural design flexibility, so as to meet the layout requirements of specifications and replacement interference space, reduce manufacturing costs and difficulties, and solve the problem of complex shape structure and relatively high manufacturing cost of existing inserts.

[0034] Embodiment 2:

[0035] The receiving plug 3 is a Y-shaped plug, the top side of the receiving plug 3 is fixedly welded on the bottom end of the stator plug 2, and the bottom end of the receiving plug 3 is fixedly welded in the groove on the PCB board 1; wherein, the setting of the receiving plug 3 can assist the stator plug 2 to be fixedly welded on the PCB board 1, thereby ensuring the welding stability.

[0036] The upper copper sheet 21 is a vertical Z-shaped sheet, and an R-shaped sheet is fixedly mounted on the outer wall of the upper copper sheet 21; wherein, the shape of the stator insert sheet 2 is convenient for stamping and forming.

[0037] The R-shaped sheet is arranged on the upper half of the stator insert 2, and the motor wiring harness is clamped on the inner side of the R-shaped sheet; wherein, the arrangement of the R-shaped sheet facilitates the stable clamping of the motor wiring harness and increases the assembly stability.

[0038] Among them, the Z-shaped automotive electronic water pump stator insert structure can ensure the assembly stability between the stator insert 2 and the PCB board 1 by setting the receiving insert 3, and at the same time, the hot-melt connection between the top of the stator insert 2 and the insulating winding device can ensure the stability and safety of the electrical connection.

[0039] Embodiment 3:

[0040] Three groups of stator inserts 2 are welded on the PCB board 1. The three groups of stator inserts 2 are the first insert 2-1, the second insert 2-2 and the third insert 2-3 from left to right, and the first insert 2-1, the second insert 2-2 and the third insert 2-3 correspond to the three phases of the electrode U, V and W. The upper copper sheet 21 has a thickness of 1.2±0.05mm and a width of 6.3±0.05mm, and the lower copper sheet 22 has a thickness of 1.0±0.05mm and a width of 4.0±0.05mm;

[0041] Among them, in order to meet the electrical performance requirements of carrying a maximum motor power of 480W and an input voltage of 8-36V, the definition of the size range of the plug must be sufficient to support it, while meeting the matching with the PCB socket and the difficulty of the stamping process and the requirements of the simplification of parts materials. Therefore, after comprehensive analysis, evaluation and verification, it is concluded that: when the thickness of the upper copper sheet 21 is 1.2±0.05mm and the width is 6.3±0.05mm, and the thickness of the lower copper sheet 22 is 1.0±0.05mm and the width is 4.0±0.05mm, it can meet the electrical performance requirements and meet the stamping process and the matching with the PCB hole and the simplification of materials.

[0042] In addition, the Z-shaped automotive electronic water pump stator insert structure can be designed within the existing limited space through the setting of the shape of the stator insert 2, and the limited space is utilized to achieve a reasonable structure and compact size. An R-shaped piece is designed at the upper end of the insert to meet the function of clamping the motor wiring harness and ensure practicality.

[0043] It should be noted that the material of the stator insert 2 is brass, which is gold-plated to improve its conductivity and corrosion resistance. Brass has good conductivity and processing properties, ensuring reliable connection and long-term stable operation of the insert in the electronic water pump.

[0044] The working principle and use process of the utility model are as follows: the bottom end of the receiving plug 3 is fixedly welded on the PCB board 1 in advance, and then the bottom end of the stator plug 2 is fixedly welded on the receiving plug 3, and at the same time, the top end of the stator plug 2 is connected to the insulating winding device by hot-melt connection. The overall structure is simple and adaptable to the surrounding installation environment, and the practicability is strong.

[0045] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0046] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A Z-shaped automotive electronic water pump stator insert structure, comprising a stator insert (2) assembled on a PCB board (1); Features: The stator insert (2) is formed by stamping, the top end of the stator insert (2) is connected to the insulating winding device by hot melting, the stator insert (2) comprises an upper copper sheet (21) and a lower copper sheet (22), and the bottom end of the upper copper sheet (21) is welded to the lower copper sheet (22) by laser welding; The overall structure of the stator insert (2) is Z-shaped, an insulating winding device is arranged on the outer side of the upper part of the stator insert (2), the outer side of the middle part of the stator insert (2) is a motor base, and the lower part of the stator insert (2) is adapted to the welding groove on the PCB board (1); The bottom end of the stator insert (2) is fixedly welded on the PCB board (1) via a receiving insert (3).

2. The Z-shaped automotive electronic water pump stator insert structure according to claim 1, characterized in that: The receiving plug-in piece (3) is a Y-shaped plug-in piece, the top side of the receiving plug-in piece (3) is fixedly welded on the bottom end of the stator plug-in piece (2), and the bottom end of the receiving plug-in piece (3) is fixedly welded in a notch on the PCB board (1).

3. The Z-shaped automotive electronic water pump stator insert structure according to claim 1, characterized in that: The upper copper sheet (21) is a vertical Z-shaped sheet, and an R-shaped sheet is fixedly mounted on the outer wall of the upper copper sheet (21).

4. The Z-shaped automotive electronic water pump stator insert structure according to claim 3, characterized in that: The R-shaped sheet is arranged on the upper half of the stator insert sheet (2) as a whole, and a motor wiring harness is clamped on the inner side of the R-shaped sheet.

5. The Z-shaped automotive electronic water pump stator insert structure according to claim 1, characterized in that: Three groups of stator inserts (2) are welded on the PCB board (1), and the three groups of stator inserts (2) are, from left to right, a first insert (2-1), a second insert (2-2) and a third insert (2-3), and the first insert (2-1), the second insert (2-2) and the third insert (2-3) correspond to the three phases U, V and W of the electrode.

6. The Z-shaped automotive electronic water pump stator insert structure according to claim 1, characterized in that: The upper copper sheet (21) has a thickness of 1.2±0.05 mm and a width of 6.3±0.05 mm, and the lower copper sheet (22) has a thickness of 1.0±0.05 mm and a width of 4.0±0.05 mm.

Images