CN-224228880-U - Electronic water pump structure with reduced cost and low pulsation

CN224228880UCN 224228880 UCN224228880 UCN 224228880UCN-224228880-U

Abstract

The utility model relates to the technical field of electronic water pumps, in particular to a low-cost and low-pulsation electronic water pump structure, which is characterized in that a pump core component is arranged in an electronic water pump shell, rivets are used for riveting during assembly, subsequent welding is not needed, an assembled stator can be directly subjected to plastic coating, waste material generation is reduced during stamping after a stator core is segmented, raw material cost is reduced, the low-cost and low-pulsation electronic water pump structure comprises an upper shell and a lower shell, the bottom end of the upper shell is provided with the lower shell, the upper shell and the lower shell form the electronic water pump shell, and the pump core component is arranged in the electronic water pump shell.

Inventors

YU ZHONGYOU
LIU QILONG
Zhang shengda
LIU QIAN
PAN XIAOYONG

Assignees

宁波拓普集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250516

Claims (5)

1. The utility model provides a reduce cost, low pulsation's electronic water pump structure, includes casing (1) and lower casing (13), goes up casing (1) bottom and is provided with casing (13) down, goes up casing (1) and casing (13) constitution electron water pump shell down, its characterized in that still includes pump core subassembly, the inside pump core subassembly that is provided with of electron water pump shell.
2. The low-cost and low-pulsation electronic water pump structure according to claim 1, wherein the pump core assembly comprises an isolation sleeve (2), an impeller (3), an impeller part (4), a resin magnetic rotor (5), a rotating shaft assembly (6), a fixed shaft pin (7), a stator yoke iron core (8), a stator tooth iron core (9), a stator injection molding part (10), a connecting terminal (11) and a control board (12), and the isolation sleeve (2), the impeller (3), the impeller part (4), the resin magnetic rotor (5), the rotating shaft assembly (6), the fixed shaft pin (7), the stator yoke iron core (8), the stator tooth iron core (9), the stator injection molding part (10), the connecting terminal (11) and the control board (12) are sequentially arranged inside the electronic water pump shell from top to bottom.
3. A cost-effective, low pulsation, electric water pump structure according to claim 2, characterized in that said resin magnet rotor (5) is provided with arc-shaped grooves in the bullnose.
4. A cost-effective, low pulsation electric water pump structure according to claim 2, characterized in that the stator yoke core (8) and the stator tooth core (9) are tensioned by means of interference pins.
5. A cost-effective, low pulsation electric water pump structure according to claim 2, characterized in that the impeller member (4) is an impeller injection-molded member.

Description

Electronic water pump structure with reduced cost and low pulsation Technical Field The utility model relates to the technical field of electronic water pumps, in particular to a low-cost and low-pulsation electronic water pump structure. Background With the increasing requirements of energy conservation and environmental protection, the pump as a key power source also needs to meet the standards of high efficiency and low energy consumption. A water pump is a machine that delivers or pressurizes a liquid. It transmits mechanical energy or other external energy of prime mover to liquid to increase energy of liquid, and is mainly used for conveying liquid including water, oil, acid-alkali liquor, emulsion, suspension emulsion and liquid metal. The conventional structure is generally made of sintered NdFeB, and is generally made of built-in and surface-mounted materials, the conventional structure needs to assemble the magnetic shoe and the rotor core, and then the rotor core and the magnetic shoe are formed into a whole rotor assembly through twice injection molding, because the magnetic shoe needs to be fixed during injection molding, the two times of injection molding are generally needed. Disclosure of utility model In order to solve the technical problems, the utility model provides an electronic water pump structure with low cost and low pulsation. The utility model discloses a low-cost and low-pulsation electronic water pump structure, which comprises an upper shell and a lower shell, wherein the lower shell is arranged at the bottom end of the upper shell, the upper shell and the lower shell form an electronic water pump shell, and the low-cost and low-pulsation electronic water pump structure also comprises a pump core assembly, the pump core assembly is arranged in the electronic water pump shell, the lower electromagnetic vibration noise is, the rivet is used for riveting during assembly, subsequent welding is not needed, the assembled stator can be directly packaged and molded, after a stator iron core is segmented, waste material is reduced during stamping, and raw material cost is reduced. Preferably, the pump core assembly comprises an isolation sleeve, an impeller component, a resin magnetic rotor, a rotating shaft assembly, a fixed shaft pin, a stator yoke iron core, a stator tooth iron core, a stator injection molding piece, a connecting terminal and a control board, wherein the isolation sleeve, the impeller component, the resin magnetic rotor, the rotating shaft assembly, the fixed shaft pin, the stator yoke iron core, the stator tooth iron core, the stator injection molding piece, the connecting terminal and the control board are sequentially arranged inside the electronic water pump shell from top to bottom. Preferably, the arc-shaped groove of the resin magnetic rotor bullnose is provided with an arc-shaped groove, and the arc-shaped groove of the resin magnetic rotor bullnose optimizes a magnetic circuit and reduces cogging torque fluctuation. Preferably, the stator yoke iron core and the stator tooth iron core are tensioned through the interference pins, and when the stator yoke iron core and the stator tooth iron core are assembled, the interference pins are used for tensioning the yoke iron core and the tooth iron core, the process is simple, and multiple welding is not needed. Preferably, the impeller member is an impeller injection molded member. Compared with the prior art, the utility model has the beneficial effects that the pump core component is arranged in the electronic water pump shell, the lower the electromagnetic vibration noise is, the rivet is used for riveting during assembly, the subsequent welding is not needed, the assembled stator can be directly coated with plastic, after the stator core is segmented, the waste material is reduced during stamping, and the raw material cost is reduced. Drawings FIG. 1 is a schematic diagram of an explosive structure of the present utility model; FIG. 2 is a schematic cross-sectional view of the present utility model; fig. 3 is a first enlarged structural schematic view of a stator yoke core and a stator tooth core structure; fig. 4 is an enlarged schematic view of the structure of the stator yoke core and the stator tooth core; Fig. 5 is a second enlarged schematic structural view of the stator yoke core, the stator tooth core, and the like. The drawing comprises a first upper shell, a second isolation sleeve, a third impeller, a fourth impeller piece, a third resin magnetic rotor, a third rotating shaft assembly, a fourth rotating shaft assembly, a third fixed pin shaft, a fourth stator yoke iron core, a third stator tooth iron core, a fourth stator injection molding piece, a fourth connecting terminal, a fourth control board and a fourth lower shell. Detailed Description In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawi