A noise-reducing and shock-absorbing blower motor for automobiles

Abstract

The present invention discloses a noise-reducing and shock-absorbing blower motor for automobiles, which relates to the field of automobile motors and includes a noise-reducing housing and a motor main body. The noise-reducing housing is arranged on the outside of the motor main body. The right side of the noise-reducing housing is designed with an open structure for placing the motor main body. A first shock-absorbing and sound-insulating plate is arranged at the left end of the noise-reducing housing, and a second shock-absorbing and sound-insulating plate is arranged at the right end of the noise-reducing housing. An installation cover is fixed on the right side of the second shock-absorbing and sound-insulating plate. A positioning mechanism is arranged inside the noise-reducing housing to position the placement position of the motor main body in the noise-reducing housing. The noise-reducing and shock-absorbing blower motor for automobiles absorbs and isolates the operating noise of the motor main body through the noise-reducing housing. The noise-reducing housing and the motor main body are detachably connected, which does not affect the subsequent maintenance of the motor main body. A positioning plate is arranged in the noise-reducing housing to provide installation positioning for the motor main body. At the same time, the positioning plate is movable to facilitate the absorption of vibration.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive motors, and particularly to a noise-reducing and shock-absorbing blower motor for automobiles. Background Art

[0002] In an automotive air-conditioning system, an air-conditioning blower motor blows out air-conditioning air. The blower motor is composed of structures such as a motor, a motor housing, and an impeller. When the blower motor operates, vibrations and other noises will be generated during its operation.

[0003] Prior Art 1 (a Chinese patent with an application number of CN202322786344.7 and published on July 19, 2024) is a high-stability double-impeller automotive air-conditioning blower motor, including a housing and a motor body; first through grooves are opened on both sides of the housing, the output shaft of the motor body penetrates through the first through grooves and extends outward, a mounting plate is bolted to the bottom of the motor body, and a buffer mechanism is arranged between the bottom of the mounting plate and the bottom of the inner cavity of the housing; the buffer mechanism includes a first chute, a first slider, a first buffer spring, a rotating rod, a second chute, a second slider, and a second buffer spring, and the first chute is opened at the bottom of the mounting plate; through the structural design of the first chute, the first slider, the first buffer spring, the rotating rod, the second chute, the second slider, and the second buffer spring, the function of buffering and shock-absorbing the motor body is realized, the vibration of the motor body is reduced, and at the same time, the noise generated by the vibration is reduced; Prior Art 2 (a Chinese patent with an application number of CN202022595011.2 and published on August 25, 2021) is an automotive air-conditioning blower motor, including a motor housing, the inner surface of the motor housing is plugged with a motor, an inner ring platform is arranged on the inner surface of the motor housing, a circular protrusion is arranged at the middle-end housing of the motor, and the circular protrusion is fixed on the surface of the inner ring platform by screws, a first sound-insulating ring block is arranged on the inner surface of the lower end of the motor housing, a second sound-insulating ring block is plugged on the inner surface of the upper end of the motor housing, a ring seat is fixed at the upper end of the second sound-insulating ring block, and a clamping seat is arranged at the lower end of the ring seat to clamp and fix the second sound-insulating ring block, a ring piece is connected to the inner surface of the lower end of the motor housing by a spring, and the ring piece presses upward against the lower surface of the motor. By arranging sound-insulating ring blocks on the inner and outer layers of the motor housing to entirely wrap the motor, good sound insulation can be achieved, and the motor is fixed at the middle end and supported by a spring at the bottom, so it can be arranged in a suspended manner, and good shock absorption can be achieved during rotational operation.

[0004] Although the current automotive blower motors can reduce shock and noise by externally setting noise-reducing materials, etc., the coating outside the motor will affect the heat dissipation of the motor, and the subsequent disassembly and maintenance of the motor are also relatively cumbersome. The vibrations generated during the operation of the motor are also prone to conduct outward, which easily affects the installation stability of the motor. Summary of the Invention

[0005] The object of the present invention is to provide a noise reduction and shock absorption type blower motor for automobiles, so as to solve the problems proposed in the above background technology. Although the current automobile blower motor can reduce noise and vibration through external noise reduction materials, etc., the coating outside the motor will affect the heat dissipation of the motor, and the subsequent disassembly and maintenance of the motor are also relatively cumbersome.

[0006] To achieve the above object, the present invention provides the following technical solution: A noise reduction and shock absorption type blower motor for automobiles, including a noise reduction housing and a motor main body. The noise reduction housing is arranged outside the motor main body. The right side of the noise reduction housing is designed with an open structure for placing the motor main body. A first shock absorption and sound insulation board is arranged at the left end of the noise reduction housing, and a second shock absorption and sound insulation board is arranged at the right end of the noise reduction housing. And an installation cover is fixed on the right side of the second shock absorption and sound insulation board. A positioning mechanism is arranged inside the noise reduction housing to position the placement position of the motor main body in the noise reduction housing. An elastic fitting pad is arranged inside the noise reduction housing. The elastic fitting pad and the noise reduction housing enclose and fill with coolant inside. And heat dissipation fins are fixed on the outer surface of the noise reduction housing to dissipate the heat absorbed by the coolant. A liquid pumping control mechanism is arranged outside the noise reduction housing to pump out the liquid in the elastic fitting pad, so that the elastic fitting pad is disengaged from the motor main body.

[0007] Further optimizing the above technical solution, the positioning mechanism includes a positioning plate, a connection groove, a fixed seat and a first spring;

[0008] The positioning plates are symmetrically arranged up and down about the center of the noise reduction housing, and the right end of the positioning plate is designed with an inclined structure;

[0009] The connection groove is opened on the surface of the motor main body, and a left-right sliding structure is formed between the connection groove and the positioning plate;

[0010] The fixed seat is fixed on the inner wall of the noise reduction housing, and a up-down sliding structure is formed between the positioning plate and the fixed seat;

[0011] The first spring is arranged inside the fixed seat to provide a thrust for the positioning plate.

[0012] Further optimizing the above technical solution, a detachable connection is formed between the installation cover and the noise reduction housing, and a limiting mechanism is arranged on the outside of the installation cover to limit the installation cover at the right end of the noise reduction housing.

[0013] Further optimizing the above technical solution, a sealing pad is fixed on the left side of the installation cover, and a guiding column is fixed on the left side of the installation cover. The guiding column is inserted into the noise reduction housing and forms a left-right sliding structure with the noise reduction housing.

[0014] Further optimizing the above technical solution, the limiting mechanism includes an installation seat, an extrusion block, a second spring, a through groove, a movable block and a driving mechanism;

[0015] The mounting base is arranged on the right side of the mounting cover, and the mounting base is connected to the noise reduction housing;

[0016] The extrusion block is arranged inside the mounting base and forms a sliding connection therewith, and the left side of the extrusion block is designed with an inclined structure;

[0017] The second spring is arranged at the outer end of the extrusion block to provide an outward pulling force for the extrusion block;

[0018] The through groove is opened inside the extrusion block;

[0019] The movable block is arranged inside the through groove, and the movable block presses down the extrusion block through the through groove;

[0020] The driving mechanism is connected to the movable block to control the movement of the movable block.

[0021] To further optimize this technical solution, the driving mechanism includes a control rod, an auxiliary block and a third spring;

[0022] The control rod is fixed to the left end of the movable block;

[0023] The auxiliary block is fixed to the outer surface of the noise reduction housing, and the control rod passes through the auxiliary block and forms a left-right sliding structure therewith;

[0024] The third spring is arranged on the right side of the auxiliary block to provide a rightward thrust for the movable block.

[0025] To further optimize this technical solution, the liquid pumping control mechanism includes a liquid storage chamber, a piston, a control ring and a communication mechanism;

[0026] The liquid storage chamber is arranged on the left side of the noise reduction housing;

[0027] The piston is arranged inside the liquid storage chamber and forms a left-right sliding structure therewith;

[0028] The control ring is arranged on the left side of the liquid storage chamber, and a connecting block is fixed to the right side of the control ring. The connecting block is connected to the piston, and the right side of the control ring is fixedly connected to the control rod;

[0029] The communication mechanism is arranged outside the liquid storage chamber to communicate the liquid storage chamber with the enclosed space inside the elastic fitting pad.

[0030] To further optimize this technical solution, the communication mechanism includes a delivery pipe, a first communication port and a second communication port;

[0031] The delivery pipe is arranged outside the liquid storage chamber;

[0032] The first communication port is opened on the surface of the noise reduction housing, and the first communication port is communicated with the delivery pipe;

[0033] The second communication port is opened on the surface of the liquid storage chamber, and the second communication port is communicated with the delivery pipe.

[0034] To further optimize this technical solution, a locking mechanism is arranged inside the control ring to limit the control ring after it is pulled to the left.

[0035] To further optimize this technical solution, the locking mechanism includes a locking groove, a support block, a locking block and a fourth spring;

[0036] The locking groove is opened inside the control ring;

[0037] The support block is fixed to the left side of the noise reduction housing;

[0038] The locking block is arranged inside the support block and forms an up-and-down sliding structure between the support blocks, and the right side of the locking block is designed with an inclined structure;

[0039] The fourth spring is arranged below the locking block to provide an upward thrust for the locking block.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] (1) The operation noise of the motor main body is absorbed and isolated by the noise reduction housing, and the noise reduction housing and the motor main body are detachably connected, which does not affect the subsequent maintenance of the motor main body. A positioning plate is arranged inside the noise reduction housing to provide installation positioning for the motor main body. At the same time, the positioning plate is movable to facilitate the absorption of vibration.

[0042] (2) The coolant arranged inside the elastic fitting pad can make the elastic fitting pad fit with the surface of the motor main body under pressure, form a coating outside the motor main body, absorb the noise and vibration of the motor, and at the same time absorb and transfer heat, and cooperate with the heat sink to dissipate the heat, so that the motor maintains a good heat dissipation effect.

[0043] (3) The motor main body is installed in the noise reduction housing through the installation cover, and the installation cover and the noise reduction housing are detachably arranged. After the installation cover is removed later, the motor main body can be disassembled, which is convenient for its maintenance.

[0044] (4) By moving the control ring, the coolant inside the elastic fitting pad can be pumped out, and the fit between the elastic fitting pad and the motor main body is released, which is convenient for the installation and taking of the motor main body. After the motor main body is installed later, the coolant is squeezed in to make the elastic fitting pad effectively fit with the motor main body.

[0045] (5) By moving the control ring, the moving block can be synchronously controlled to move, so that the extrusion block can automatically rise to release the blockage of the installation cover, and thus the installation cover can be disassembled, improving the overall use convenience of the device. Description of the Drawings

[0046] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0047] Figure 2 Schematic diagram of the side view structure of the present invention;

[0048] Figure 3 Schematic diagram of the side view structure of the noise reduction housing of the present invention;

[0049] Figure 4 Schematic diagram of the side sectional structure of the noise reduction housing of the present invention;

[0050] Figure 5 Schematic diagram of the three-dimensional structure of the mounting cover of the present invention;

[0051] Figure 6 Schematic diagram of the main sectional structure of the present invention;

[0052] Figure 7 Schematic diagram of the three-dimensional structure of the control ring of the present invention;

[0053] Figure 8 For the present invention Figure 6 Enlarged structure schematic diagram at position a in;

[0054] Figure 9 Schematic diagram of the main sectional structure of the mounting seat of the present invention;

[0055] Figure 10 Schematic diagram of the connection structure between the conveying pipe and the noise reduction housing of the present invention.

[0056] In the figure: 1. Noise reduction housing; 2. Motor main body; 3. First shock and sound insulation board; 4. Second shock and sound insulation board; 5. Mounting cover; 6. Guide post; 7. Sealing gasket; 8. Positioning plate; 9. Connection groove; 10. Fixed seat; 11. First spring; 12. Elastic fitting pad; 13. Heat sink; 14. Conveying pipe; 15. First communication port; 16. Second communication port; 17. Liquid storage chamber; 18. Piston; 19. Control ring; 1901. Connection block; 20. Mounting seat; 21. Extrusion block; 22. Second spring; 23. Through groove; 24. Movable block; 25. Control rod; 26. Auxiliary block; 27. Third spring; 28. Locking groove; 29. Support block; 30. Locking block; 31. Fourth spring. Detailed implementation manners

[0057] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0058] Please refer to Figures 1-10 The present invention provides the following technical solution: A noise reduction and shock absorption type blower motor for automobiles, comprising a noise reduction housing 1 and a motor main body 2, and the noise reduction housing 1 is arranged outside the motor main body 2;

[0059] Embodiment 1: The present invention provides the following technical solution. It is disclosed that the right side of the noise reduction housing 1 is designed with an open structure for placing the motor main body 2. A first shock absorption and sound insulation plate 3 is arranged at the left end of the noise reduction housing 1, and a second shock absorption and sound insulation plate 4 is arranged at the right end of the noise reduction housing 1. An installation cover 5 is fixed on the right side of the second shock absorption and sound insulation plate 4. A positioning mechanism is arranged inside the noise reduction housing 1 to position the placement position of the motor main body 2 inside the noise reduction housing 1. An elastic fitting pad 12 is arranged inside the noise reduction housing 1, and a coolant is filled in the interior surrounded by the elastic fitting pad 12 and the noise reduction housing 1. Heat dissipation fins 13 are fixed on the outer surface of the noise reduction housing 1 to dissipate the heat absorbed by the coolant. A liquid extraction control mechanism is arranged outside the noise reduction housing 1 to extract the liquid inside the elastic fitting pad 12, so that the elastic fitting pad 12 is disengaged from the motor main body 2.

[0060] The motor main body 2 is installed and used inside the noise reduction housing 1. The noise reduction housing 1 absorbs the running noise and vibration of the motor main body 2, thereby reducing the noise dissipated to the outside. The elastic fitting pad 12 is in contact with the motor main body 2, which can improve the installation stability of the motor main body 2. At the same time, the internal coolant can also play an effect of absorbing vibration. The coolant can absorb and conduct the heat of the motor main body 2 and dissipate it outward through the heat dissipation fins 13, so that the device can maintain a good heat dissipation effect.

[0061] Embodiment 2: On the basis of Embodiment 1, it is disclosed that the positioning mechanism comprises a positioning plate 8, a connecting groove 9, a fixed seat 10 and a first spring 11. The positioning plates 8 are symmetrically arranged up and down about the center of the noise reduction housing 1, and the right end of the positioning plate 8 is designed with an inclined structure. The connecting groove 9 is opened on the surface of the motor main body 2, and a left-right sliding structure is formed between the connecting groove 9 and the positioning plate 8. The fixed seat 10 is fixed on the inner wall of the noise reduction housing 1, and an up-down sliding structure is formed between the positioning plate 8 and the fixed seat 10. The first spring 11 is arranged inside the fixed seat 10 to provide a thrust force for the positioning plate 8. A detachable connection is formed between the installation cover 5 and the noise reduction housing 1. A limiting mechanism is arranged on the outside of the installation cover 5 to limit the installation cover 5 at the right end of the noise reduction housing 1. A sealing pad 7 is fixed on the left side of the installation cover 5, and a guiding column 6 is fixed on the left side of the installation cover 5. The guiding column 6 is inserted into the noise reduction housing 1 and forms a left-right sliding structure with the noise reduction housing 1.

[0062] After opening the installation cover 5, the motor main body 2 can be inserted into the noise reduction housing 1 so that the positioning plate 8 and the connection groove 9 are connected. The right end of the inclined positioning plate 8 can be pressed to move to facilitate the connection with the connection groove 9. At the same time, a first spring 11 is arranged at the end of the positioning plate 8, which can also absorb part of the vibration and improve the overall shock absorption effect.

[0063] Embodiment 3: On the basis of Embodiment 1, it is disclosed that the limiting mechanism includes a mounting seat 20, a pressing block 21, a second spring 22, a through groove 23, a movable block 24 and a driving mechanism. The mounting seat 20 is arranged on the right side of the mounting cover 5 and is connected to the noise reduction housing 1. The pressing block 21 is arranged inside the mounting seat 20 and forms a sliding connection with the mounting seat 20, and the left side of the pressing block 21 is designed with an inclined structure. The second spring 22 is arranged at the outer end of the pressing block 21 to provide an outward pulling force for the pressing block 21. The through groove 23 is opened inside the pressing block 21. The movable block 24 is arranged inside the through groove 23, and the movable block 24 presses the pressing block 21 downward through the through groove 23. The driving mechanism is connected to the movable block 24 to control the movement of the movable block 24. The driving mechanism includes a control rod 25, an auxiliary block 26 and a third spring 27. The control rod 25 is fixed to the left end of the movable block 24. The auxiliary block 26 is fixed to the outer surface of the noise reduction housing 1. The control rod 25 penetrates through the auxiliary block 26 and forms a left-right sliding structure with the auxiliary block 26. The third spring 27 is arranged on the right side of the auxiliary block 26 to provide a rightward thrust for the movable block 24. The liquid pumping control mechanism includes a liquid storage chamber 17, a piston 18, a control ring 19 and a communication mechanism. The liquid storage chamber 17 is arranged on the left side of the noise reduction housing 1. The piston 18 is arranged inside the liquid storage chamber 17 and forms a left-right sliding structure with the liquid storage chamber 17. The control ring 19 is arranged on the left side of the liquid storage chamber 17, and a connecting block 1901 is fixed to the right side of the control ring 19. The connecting block 1901 is connected to the piston 18, and the right side of the control ring 19 is fixedly connected to the control rod 25. The communication mechanism is arranged outside the liquid storage chamber 17 to communicate the liquid storage chamber 17 with the enclosed space inside the elastic cushion 12. The communication mechanism includes a delivery pipe 14, a first communication port 15 and a second communication port 16. The delivery pipe 14 is arranged outside the liquid storage chamber 17. The first communication port 15 is opened on the surface of the noise reduction housing 1, and the first communication port 15 is communicated with the delivery pipe 14. The second communication port 16 is opened on the surface of the liquid storage chamber 17, and the second communication port 16 is communicated with the delivery pipe 14. A locking mechanism is arranged inside the control ring 19 to limit the control ring 19 after it is pulled to the left. The locking mechanism includes a locking groove 28, a support block 29, a locking block 30 and a fourth spring 31. The locking groove 28 is opened inside the control ring 19. The support block 29 is fixed to the left side of the noise reduction housing 1. The locking block 30 is arranged inside the support block 29 and forms an up-down sliding structure with the support block 29, and the right side of the locking block 30 is designed with an inclined structure. The fourth spring 31 is arranged below the locking block 30 to provide an upward thrust for the locking block 30.

[0064] When it is necessary to disassemble the motor main body 2, the control ring 19 can be pulled to drive the piston 18 to move, sucking the coolant in the noise reduction housing 1 into the liquid storage chamber 17. At the same time, the control ring 19 will pull the movable block 24 to move through the control rod 25, releasing the extrusion of the movable block 24 on the through groove 23. The second spring 22 will drive the extrusion block 21 to move upward, releasing the blockage of the right end of the mounting cover 5 by the extrusion block 21. Then the mounting cover 5 can be removed from the right side of the noise reduction housing 1, exposing the motor main body 2, and the motor main body 2 can be pulled out of the noise reduction housing 1. After the control ring 19 is pulled to the left, the locking block 30 and the locking groove 28 are connected, which can limit the control ring 19 and keep the position of the control ring 19 stable.

[0065] The content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0066] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A noise reduction and vibration reduction type automobile blower motor, comprising a noise reduction housing (1) and a motor body (2), wherein the noise reduction housing (1) is arranged outside the motor body (2); Features: The right side of the noise reduction shell (1) is designed as an open structure for placing the motor body (2), and a first shock-absorbing sound insulation board (3) is arranged at the left end of the noise reduction shell (1), a second shock-absorbing sound insulation board (4) is arranged at the right end of the noise reduction shell (1), and a mounting cover (5) is fixed to the right side of the second shock-absorbing sound insulation board (4), and a positioning mechanism is arranged inside the noise reduction shell (1) to position the motor body (2) inside the noise reduction shell (1), and an elastic bonding pad (12) is arranged inside the noise reduction shell (1), and the elastic bonding pad (12) and the noise reduction shell (1) are mutually enclosed and filled with cooling liquid, and a heat sink (13) is fixed on the outer surface of the noise reduction shell (1) to dissipate the heat absorbed by the cooling liquid, and a liquid extraction control mechanism is arranged on the outer side of the noise reduction shell (1) to extract the liquid in the elastic bonding pad (12) so that the elastic bonding pad (12) is released from the bonding with the motor body (2); The liquid extraction control mechanism comprises a liquid storage chamber (17), a piston (18), a control ring (19) and a communication mechanism; A liquid storage chamber (17) is arranged on the left side of the noise reduction housing (1); A piston (18) is arranged inside the liquid storage chamber (17) and between the liquid storage chamber (17) to form a left-right sliding structure; A control ring (19) is arranged on the left side of the liquid storage chamber (17), and a connecting block (1901) is fixed on the right side of the control ring (19), the connecting block (1901) is connected to the piston (18), and the right side of the control ring (19) is fixedly connected to the control rod (25); The communication mechanism is arranged outside the liquid storage chamber (17) to connect the liquid storage chamber (17) and the enclosed space inside the elastic fitting pad (12) to each other.

2. The noise reduction and vibration reduction automobile blower motor according to claim 1, characterized in that: The positioning mechanism comprises a positioning plate (8), a connecting groove (9), a fixing seat (10) and a first spring (11); The positioning plate (8) is symmetrically arranged in the upper and lower directions with respect to the center of the noise reduction housing (1), and the right end of the positioning plate (8) is designed to be inclined; A connecting groove (9) is provided on the surface of the motor body (2), and a left-right sliding structure is formed between the connecting groove (9) and the positioning plate (8); A fixing seat (10) is fixed to the inner wall of the noise reduction housing (1), and an up-and-down sliding structure is formed between the positioning plate (8) and the fixing seat (10); A first spring (11) is arranged inside the fixing seat (10) to provide thrust for the positioning plate (8).

3. The noise reduction and vibration reduction automobile blower motor according to claim 1, characterized in that: The mounting cover (5) and the noise reduction housing (1) are detachably connected, and a limiting mechanism is provided on the outer side of the mounting cover (5) to limit the mounting cover (5) to the right end of the noise reduction housing (1).

4. The noise reduction and vibration reduction automobile blower motor according to claim 3, characterized in that: A sealing gasket (7) is fixed to the left side of the mounting cover (5), and a guide column (6) is fixed to the left side of the mounting cover (5); the guide column (6) is inserted into the noise reduction housing (1) and between the noise reduction housing (1) to form a left-right sliding structure.

5. The noise reduction and vibration reduction automobile blower motor according to claim 3, characterized in that: The limiting mechanism comprises a mounting seat (20), an extrusion block (21), a second spring (22), a through slot (23), a movable block (24) and a driving mechanism; A mounting seat (20) is arranged on the right side of the mounting cover (5), and the mounting seat (20) is connected to the noise reduction housing (1); An extrusion block (21) is arranged inside the mounting seat (20) and is slidably connected to the mounting seat (20), and the left side of the extrusion block (21) is designed to be inclined; A second spring (22), arranged at the outer end of the extrusion block (21) to provide an outward pulling force for the extrusion block (21); A through groove (23) is provided inside the extrusion block (21); A movable block (24) is disposed inside the through slot (23), and the movable block (24) presses the extrusion block (21) downward through the through slot (23); The driving mechanism is connected to the movable block (24) to control the movement of the movable block (24).

6. A noise reduction and vibration reduction automobile blower motor according to claim 5, characterized in that: The driving mechanism comprises a control rod (25), an auxiliary block (26) and a third spring (27); A control rod (25) fixed to the left end of the movable block (24); The auxiliary block (26) is fixed on the outer surface of the noise reduction housing (1), and the control rod (25) passes through the auxiliary block (26) and the auxiliary block (26) forms a left-right sliding structure; The third spring (27) is arranged on the right side of the auxiliary block (26) to provide a rightward thrust for the movable block (24).

7. A noise reduction and vibration reduction automobile blower motor according to claim 6, characterized in that: The communication mechanism comprises a delivery pipe (14), a first communication port (15) and a second communication port (16); A delivery pipe (14) is arranged outside the liquid storage chamber (17); A first communication port (15) is provided on the surface of the noise reduction housing (1), and the first communication port (15) and the delivery pipe (14) are in communication with each other; The second communication port (16) is formed on the surface of the liquid storage chamber (17), and the second communication port (16) and the delivery pipe (14) are in communication with each other.

8. The noise reduction and vibration reduction automobile blower motor according to claim 7, characterized in that: A locking mechanism is provided on the inner side of the control ring (19) to limit the position of the control ring (19) after being pulled to the left.

9. The noise reduction and vibration reduction automobile blower motor according to claim 8, characterized in that: The locking mechanism comprises a locking groove (28), a supporting block (29), a locking block (30) and a fourth spring (31); A locking groove (28) is provided on the inner side of the control ring (19); A support block (29) fixed on the left side of the noise reduction housing (1); The locking block (30) is arranged inside the supporting block (29) and between the supporting blocks (29) to form an up-and-down sliding structure, and the right side of the locking block (30) is designed to be inclined; The fourth spring (31) is arranged below the locking block (30) to provide an upward thrust for the locking block (30).

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