Automobile electronic water pump with filter screen mounting structure

Abstract

The utility model discloses an automobile electronic water pump with a filter screen mounting structure, and belongs to the technical field of automobile electronic water pumps. Comprising a second screw, a rear cover, a second sealing ring, an electric control board assembly, a grounding wire assembly, a first screw, a mounting frame, a motor shell assembly, a stator assembly, a first sealing ring, a shock pad, a waterproof sleeve assembly, a third sealing ring, a rotor assembly, a water pump shell and a filter screen assembly. Large-particle impurities in cooling liquid are prevented from entering the water pump to damage the rotor assembly, so that the durability and performance of the water pump are improved, the filter screen assembly is installed in the water pump shell in an interference fit mode, replacement and maintenance are convenient, the maintenance cost of the automobile electronic water pump is greatly reduced, and the reliability and safety of the whole automobile are enhanced; the opening of the connector assembly is designed to face the position of the water pump shell, and compared with the design that the opening of a traditional connector assembly faces the rear cover, the connector assembly enables the structure of the whole automobile to be more compact, and the installation space of the automobile electronic water pump is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile electronic water pumps, in particular to an automobile electronic water pump with a filter screen installation structure. Background Art

[0002] In the field of modern vehicle engineering, the water pump is a core component of the cooling system, and its stable operation is crucial to the long life and performance of the engine. However, traditional water pump design often ignores the importance of water inlet filtration, which leads to potential risks and problems. Without the installation of a filtration component, the water inlet of the water pump is prone to inhaling large particles of impurities such as sand, dust or other particulate matter. Once these impurities enter the water pump, they will cause wear on the high-speed rotating impeller and bearings, and even cause blockage. Over time, this wear and blockage will seriously affect the performance of the water pump, and even cause the water pump to be completely scrapped. This not only increases the cost of repair and replacement, but may also cause damage to the cooling system of the entire vehicle, affecting the safety and reliability of the vehicle.

[0003] Therefore, developing a new water pump design that can effectively filter large particles and protect the water pump from wear and blockage has become an urgent problem to be solved in the current vehicle engineering field. Utility Model Content

[0004] The purpose of the utility model is to provide an automotive electronic water pump with a filter installation structure to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an automotive electronic water pump with a filter installation structure includes a motor housing assembly, an electronic control board assembly, a first screw, a second screw and a third screw, a mounting frame is installed on the motor housing assembly, the electronic control board assembly is installed on the motor housing assembly by the first screw, a grounding wire assembly is installed on the electronic control board assembly, a rear cover is installed on the motor housing assembly by the second screw, a stator assembly is installed in the motor housing assembly, a watertight sleeve assembly is installed on the motor housing assembly by the third screw, a first sealing ring is installed between the motor housing assembly and the watertight sleeve assembly, a shock-absorbing pad is installed between the stator assembly and the watertight sleeve assembly, a rotor assembly is installed on the watertight sleeve assembly by the third screw, a water pump housing is installed on the watertight sleeve assembly, and a filter assembly is installed in the water pump housing.

[0006] The water pump housing and the watertight sleeve assembly form a first chamber. A temperature sensor is installed in the electronic control board assembly. The temperature sensor is used to convert external temperature changes into electrical signals and transmit them to the electronic control board assembly. The electronic control board assembly is used to receive electricity and electrical signals and control the operation of the entire automotive electronic water pump.

[0007] The circuit board assembly adjusts the current according to the temperature signal fed back by the temperature sensor. When the temperature is too high, the electronic control board assembly controls the current to increase, and the current flows into the stator assembly. Under the action of the current, the stator assembly generates a rotating magnetic field with a fixed direction and frequency. The magnetic field generated by the permanent magnet in the rotor assembly interacts with the rotating magnetic field generated by the stator assembly, causing the rotor assembly to rotate on the shaft on the watertight sleeve assembly. The rotation of the rotor assembly causes the watertight sleeve assembly to vibrate, and the shock-absorbing pad absorbs the vibration transmitted from the watertight sleeve assembly, thereby reducing the noise generated by the vibration, improving the acoustic environment of the vehicle, and making the driving and riding experience quieter.

[0008] The filter assembly comprises a filter injection molding body, which is installed in a water pump housing, and a filter is installed in the filter injection molding body.

[0009] An impeller is installed on the rotor assembly. The impeller rotates with the rotor assembly. The coolant flows into the first chamber through the water inlet on the water pump housing. When the coolant flows in, it passes through the filter assembly. The filter on the filter assembly filters the particulate impurities in the coolant to prevent the impurities from entering the first chamber. The liquid in the first chamber is discharged from the water outlet on the water pump housing by centrifugal force.

[0010] A connector is installed on the motor housing assembly, a pin is installed in the connector, and the pin is connected to the electric control board assembly.

[0011] The connector is U-shaped, and the pin has four bending angles, forming an S-shape. The S-shaped pin matches the U-shaped connector, and an opening is provided on the connector. The opening faces the water pump housing. Compared with the design of the traditional connector opening facing the rear cover, the connector design of the utility model makes the structure of the whole vehicle more compact and saves the installation space of the automotive electronic water pump.

[0012] A first sealing ring is installed between the motor housing assembly and the watertight sleeve assembly, a second sealing ring is installed between the rear cover and the motor housing assembly, and a third sealing ring is installed between the watertight sleeve assembly and the water pump housing. The third sealing ring prevents the high-pressure liquid from flowing out of the first chamber and prevents the liquid from short-circuiting, thereby maintaining a stable pressure at the outlet of the first chamber.

[0013] The filter is made of steel. The filter is round. During production, the filter is first placed in the mold, and then the filter body is injection molded. After the injection molding is completed, the filter body and the filter are formed into one piece to form a filter assembly. The filter assembly is installed in the water pump housing through interference fit.

[0014] Compared with the prior art, the beneficial effects achieved by the utility model are as follows: the utility model installs a filter assembly on the water pump housing to prevent large particles of impurities in the coolant from entering the water pump and causing damage to the rotor assembly, thereby improving the durability and performance of the water pump; the filter assembly is installed in the water pump housing by interference fit, which is convenient for replacement and maintenance, greatly reducing the maintenance cost of the automotive electronic water pump and enhancing the reliability and safety of the entire vehicle; the connector opening is designed to be oriented towards the water pump housing, and compared with the traditional design of the connector opening facing the rear cover, the connector design makes the structure of the entire vehicle more compact and saves the installation space of the automotive electronic water pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is an exploded view of the automotive electronic water pump of the utility model;

[0017] Figure 2 It is a cross-sectional view of the water pump housing of the utility model;

[0018] Figure 3 It is an exploded view of the filter assembly of the utility model;

[0019] Figure 4 It is a top view of the water pump housing of the utility model;

[0020] Figure 5 It is an elevation view of the motor housing assembly of the utility model;

[0021] Figure 6 It is a side view of the motor housing assembly of the utility model;

[0022] Figure 7 It is a vertical view of the plug pin of the utility model;

[0023] In the figure: 1. second screw; 2. back cover; 3. second sealing ring; 4. electric control board assembly; 5. ground wire assembly; 6. first screw; 7. mounting bracket; 8. motor housing assembly; 9. stator assembly; 10. first sealing ring; 11. shock-absorbing pad; 12. waterproof sleeve assembly; 13. third sealing ring; 14. rotor assembly; 15. water pump housing; 16. filter assembly; 17. third screw; 161. filter; 162. filter injection molding body; 81. connector; 82. pin. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-7 The utility model provides a technical solution: an automotive electronic water pump with a filter installation structure includes a motor housing assembly 8, an electric control board assembly 4, a first screw 6, a second screw 1 and a third screw 17, a mounting frame 7 is installed on the motor housing assembly 8, the electric control board assembly 4 is installed on the motor housing assembly 8 through the first screw 6, a grounding wire assembly 5 is installed on the electric control board assembly 4, a rear cover 2 is installed on the motor housing assembly 8 through the second screw 1, a stator assembly 9 is installed in the motor housing assembly 8, a waterproof sleeve assembly 12 is installed on the motor housing assembly 8 through the third screw 17, a first sealing ring 10 is installed between the motor housing assembly 8 and the waterproof sleeve assembly 12, a shock-absorbing pad 11 is installed between the stator assembly 9 and the waterproof sleeve assembly 12, a rotor assembly 14 is installed on the waterproof sleeve assembly 12 through the third screw 17, a water pump housing 15 is installed on the waterproof sleeve assembly 12, and a filter assembly 16 is installed in the water pump housing 15.

[0026] A first sealing ring 10 is installed between the motor housing assembly 8 and the watertight sleeve assembly 12, a second sealing ring 3 is installed between the rear cover 2 and the motor housing assembly 8, and a third sealing ring 13 is installed between the watertight sleeve assembly 12 and the water pump housing 15. The third sealing ring 13 prevents the high-pressure liquid from flowing out of the first chamber and prevents the liquid from short-circuiting, thereby maintaining a stable pressure at the outlet of the first chamber.

[0027] The water pump housing 15 and the watertight sleeve assembly 12 form a first chamber. A temperature sensor is installed in the electronic control board assembly 4. The temperature sensor is used to convert external temperature changes into electrical signals and transmit them to the electronic control board assembly 4. The electronic control board assembly 4 is used to receive electricity and electrical signals and control the operation of the entire automotive electronic water pump.

[0028] The circuit board assembly adjusts the current according to the temperature signal fed back by the temperature sensor. When the temperature is too high, the electric control board assembly 4 controls the current to increase, and the current flows into the stator assembly 9. Under the action of the current, the stator assembly 9 generates a rotating magnetic field with a fixed direction and frequency. The magnetic field generated by the permanent magnet in the rotor assembly 14 interacts with the rotating magnetic field generated by the stator assembly 9, causing the rotor assembly 14 to rotate on the shaft on the waterproof sleeve assembly 12. The rotation of the rotor assembly 14 causes the waterproof sleeve assembly 12 to vibrate, and the shock-absorbing pad 11 absorbs the vibration transmitted from the waterproof sleeve assembly 12, thereby reducing the noise generated by the vibration, improving the acoustic environment of the vehicle, and making the driving and riding experience more quiet.

[0029] The filter assembly 16 includes a filter injection molding body 162 . The filter injection molding body 162 is installed in the water pump housing 15 . A filter 161 is installed in the filter injection molding body 162 .

[0030] The filter screen 161 is made of steel. The filter screen 161 is circular. During production, the filter screen 161 is first placed in a mold, and then the filter screen injection molding body is injection molded 162. After the injection molding is completed, the filter screen injection molding body 162 and the filter screen 161 are integrally formed to form the filter screen assembly 16. The filter screen assembly 16 is installed in the water pump housing 15 by interference fit.

[0031] An impeller is installed on the rotor assembly 14, and the impeller rotates with the rotor assembly. The coolant flows into the first chamber through the water inlet on the water pump housing 15. When the coolant flows in, it passes through the filter assembly 16. The filter 161 on the filter assembly 16 filters the particulate impurities in the coolant to prevent the impurities from entering the first chamber, and the liquid in the first chamber is discharged from the water outlet on the water pump housing 15 by centrifugal force.

[0032] A connector 81 is installed on the motor housing assembly 8, and a pin 82 is installed in the connector 81, and the pin 82 is connected to the electric control board assembly 4. The connector 81 is U-shaped, and the pin 82 has four bending angles and is S-shaped. The S-shaped pin 82 matches the U-shaped connector 81, and an opening is provided on the connector 81. The opening is toward the water pump housing 15. Compared with the design of the traditional connector opening toward the rear cover 2, the connector design of the utility model makes the structure of the whole vehicle more compact and saves the installation space of the automotive electronic water pump.

[0033] The working principle of the utility model: the circuit board assembly adjusts the current according to the temperature signal fed back by the temperature sensor. When the temperature is too high, the electric control board assembly 4 controls the current to increase, and the current flows into the stator assembly 9. The stator assembly 9 generates a rotating magnetic field with a fixed direction and frequency under the action of the current. The magnetic field generated by the permanent magnet in the rotor assembly 14 interacts with the rotating magnetic field generated by the stator assembly 9, causing the rotor assembly 14 to rotate on the rotating shaft on the waterproof sleeve assembly 12. The rotation of the rotor assembly 14 causes the waterproof sleeve assembly 12 to vibrate, and the shock-absorbing pad 11 absorbs the vibration transmitted from the waterproof sleeve assembly 12, thereby reducing the noise generated by the vibration, improving the acoustic environment of the vehicle, and making the driving and riding experience more quiet. An impeller is installed on the rotor assembly 14, and the impeller rotates with the rotor assembly. The coolant flows into the first chamber through the water inlet on the water pump housing 15. When the coolant flows in, it passes through the filter assembly 16. The filter 161 on the filter assembly 16 filters the particulate impurities in the coolant to prevent the impurities from entering the first chamber. Then, the liquid in the first chamber is discharged from the water outlet on the water pump housing 15 by centrifugal force. This cycle is repeated to achieve filtering of the coolant.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automotive electronic water pump with a filter installation structure, characterized in that: The invention comprises a motor housing assembly (8), an electric control board assembly (4), a first screw (6), a third screw (17) and a second screw (1); a mounting frame (7) is mounted on the motor housing assembly (8); the electric control board assembly (4) is mounted on the motor housing assembly (8) by means of the first screw (6); a grounding wire assembly (5) is mounted on the electric control board assembly (4); a rear cover (2) is mounted on the motor housing assembly (8) by means of the second screw (1); a stator assembly (9) is mounted in the motor housing assembly (8); and the electric control board assembly (4) is mounted on the motor housing assembly (8). The casing assembly (8) is mounted with a watertight sleeve assembly (12) via a third screw (17); a first sealing ring (10) is mounted between the motor casing assembly (8) and the watertight sleeve assembly (12); a shock-absorbing pad (11) is mounted between the stator assembly (9) and the watertight sleeve assembly (12); a rotor assembly (14) is mounted on the watertight sleeve assembly (12) via a third screw (17); a water pump casing (15) is mounted on the watertight sleeve assembly (12); and a filter assembly (16) is mounted in the water pump casing (15).

2. The automotive electronic water pump with a filter installation structure according to claim 1, characterized in that: The filter assembly (16) comprises a filter injection molded body (162), the filter injection molded body (162) is installed in a water pump housing (15), and a filter (161) is installed in the filter injection molded body (162).

3. The automotive electronic water pump with a filter installation structure according to claim 1, characterized in that: A connector (81) is installed on the motor housing assembly (8), a plug pin (82) is installed in the connector (81), and the plug pin (82) is connected to the electric control board assembly (4).

4. The automotive electronic water pump with a filter installation structure according to claim 1, characterized in that: A first sealing ring (10) is installed between the motor housing assembly (8) and the watertight sleeve assembly (12), a second sealing ring (3) is installed between the rear cover (2) and the motor housing assembly (8), and a third sealing ring (13) is installed between the watertight sleeve assembly (12) and the water pump housing (15).

5. The automotive electronic water pump with a filter installation structure according to claim 2, characterized in that: The filter screen (161) is made of steel.

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