CN217415730U

CN217415730U - Electronic vacuum pump with drainage device

Info

Publication number: CN217415730U
Application number: CN202123205733.3U
Authority: CN
Inventors: 徐冲; 赵福炯; 陈锋; 徐洁莉; 王玉荧
Original assignee: Zhejiang Vie Pump Manu Co ltd
Current assignee: Zhejiang Wan'an Zhiqu Automotive Electronic Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-09-13
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses an electron vacuum pump with drainage device relates to electron vacuum pump's technical field, include: the air suction device comprises a motor, an air suction nozzle, a working cavity assembly, an exhaust pipeline and a sound insulation assembly, wherein a base is integrally arranged at the upper end of the motor, a water accumulation groove is formed in the base, the lower end of the base is provided with the exhaust pipeline, the exhaust pipeline is communicated with the water accumulation groove, the air suction nozzle is arranged on one side of the base, the working cavity assembly is arranged at the upper end of the base, the sound insulation assembly is arranged at the upper end of the base, and the working cavity assembly is located in a cavity formed between the base and the sound insulation assembly. After the vehicle wades into the water, the water in the pump cavity can be effectively discharged, meanwhile, the sealing performance of the motor bearing is ensured when the water is stored in the pump cavity, and the service life of the vacuum pump after wading is prolonged; meanwhile, the stepped exhaust port structure can ensure that larger foreign matters cannot be sucked into the pump cavity.

Description

Electronic vacuum pump with drainage device

Technical Field

The utility model relates to the technical field of electron vacuum pump especially involves an electron vacuum pump with drainage device.

Background

The vacuum boosting brake system of the automobile has the condition of insufficient vacuum degree under certain working conditions, and the driving safety is influenced. At the moment, the electronic vacuum pump can provide an additional vacuum source for the electronic vacuum pump, so that the normal work of the vacuum booster is ensured, and the driving safety is ensured. The turbo-charged vehicle type or the small pure electric vehicle provided with the vacuum-assisted braking system needs an additional device to specially supplement or provide vacuum due to insufficient vacuum degree of an engine intake manifold or no vacuum provided by the engine, and the electronic vacuum pump is a good choice.

Meanwhile, because the exhaust port of the vacuum pump is communicated with the atmosphere, when the product stops, the negative pressure in the pump cavity and in part of pipelines can be balanced with the atmospheric pressure again, and the balance is realized by sucking air with a certain volume back at the exhaust port. Impurities and water vapor in air are easy to suck back into the pump cavity in the back suction process, and if the water level is higher than the air outlet when a vehicle wades, the back suction directly shows that water is directly sucked into the pump cavity. If the wading process is braked for many times and the vacuum pump works for many times in a circulating mode, the inverted water absorption in the pump cavity is accumulated continuously until the pump cavity is submerged into the working cavity, so that the working resistance of the rotor and the blades in the working cavity is increased rapidly, and the rotor and the blades are easy to crack.

According to the technical scheme of the existing same-type electronic vacuum pump, a working cavity is arranged on the plane of a motor base, and an exhaust port is a through hole in the base. After the air outlet of the vacuum pump wades and sucks water reversely, the accumulated water area is represented as the difference between the area of the motor base and the area of the working cavity, when the vacuum pump works for the second time, the exhaust pressure in the pump cavity acts on the accumulated water area, and water is not easy to exhaust from the air outlet.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electron vacuum pump with drainage device for solve above-mentioned technical problem.

The utility model adopts the technical scheme as follows:

an electronic vacuum pump with a drainage device comprises a motor, a suction nozzle, a working cavity assembly, an exhaust pipeline and a sound insulation assembly, wherein a base is integrally arranged at the upper end of the motor, a water accumulation groove is formed in the base, the exhaust pipeline is arranged at the lower end of the base and communicated with the water accumulation groove, the suction nozzle is arranged on one side of the base, the working cavity assembly is arranged at the upper end of the base, the sound insulation assembly is arranged at the upper end of the base, and the working cavity assembly is located in a cavity formed between the base and the sound insulation assembly.

Preferably, the working cavity assembly comprises an air suction disc, a rotor, blades, a stator and an exhaust disc, the air suction disc is arranged at the upper end of the base, the stator is arranged at the upper end of the air suction disc, the exhaust disc is arranged at the upper end of the stator, an inner cavity is formed in the stator, the rotor is arranged in the inner cavity, a rotor groove is formed in the upper end of the rotor, and the blades are arranged in the rotor groove.

Preferably, the base is provided with an air inlet, the air inlet is communicated with the air suction nozzle, a bearing hole used for penetrating a motor shaft of the motor is formed in the middle of the base, the air inlet is formed in one side, close to the air suction nozzle, of the bearing hole, and the water accumulating tank is formed in one side, far away from the air inlet, of the bearing hole.

Preferably, a third sealing groove is formed in the upper surface of the base, and a third sealing ring is arranged in the third sealing groove.

Preferably, the sound insulation assembly comprises a sound insulation sleeve and a sound insulation cover, the sound insulation sleeve is arranged at the upper end of the exhaust disc, the sound insulation cover is arranged on the base, and the sound insulation sleeve is located in the sound insulation cover.

Preferably, the suction nozzle is provided with a suction port shield.

Preferably, the exhaust disc is provided with an exhaust hole, the exhaust hole is communicated with the air inlet, and the exhaust hole is communicated with the water collecting tank and the exhaust pipeline.

The technical scheme has the following advantages or beneficial effects:

according to the electronic vacuum pump with the drainage device, accumulated water in the pump cavity can be effectively drained after the vehicle reversely absorbs water by the wading vacuum pump, meanwhile, the sealing performance of a motor bearing is guaranteed when water is stored in the pump cavity, and the service life of the vacuum pump after wading is prolonged; meanwhile, the stepped exhaust port structure can ensure that larger foreign matters cannot be sucked into the pump cavity.

Drawings

Fig. 1 is an exploded view of an electric vacuum pump with a water discharge device according to the present invention;

fig. 2 is a schematic structural diagram of a base of an electronic vacuum pump with a water discharge device according to the present invention.

In the figure: 1. a motor; 11. a base; 111. a water accumulation tank; 112. an air inlet; 113. a bearing bore; 12. A suction nozzle; 121. an air intake port shroud; 2. a working chamber; 21. a suction plate; 22. a rotor; 23. a blade; 24. a stator; 25. an exhaust tray; 251. an exhaust hole; 3. an exhaust duct; 31. an exhaust port sheath; 4. a sound insulating assembly; 41. a silencing sleeve; 42. a sound insulating cover; 5. a first seal ring; 6. a second seal ring; 7. and a third sealing ring.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

Fig. 1 is an explosion structure diagram of an electronic vacuum pump with a water discharge device of the present invention, fig. 2 is a structure diagram of a base of an electronic vacuum pump with a water discharge device of the present invention, please refer to fig. 1 to 2, which illustrate a preferred embodiment, showing an electronic vacuum pump with a water discharge device, comprising: motor 1, suction nozzle 12, 2 subassemblies in working chamber, exhaust duct 3 and noise insulation subassembly 4, 1 upper end an organic whole of motor is provided with base 11, and ponding groove 111 has been seted up to base 11's upper end, and base 11's lower extreme is provided with exhaust duct 3, and exhaust duct 3 is linked together with ponding groove 111, and exhaust duct 3 is used for discharging the air in the 2 subassemblies in the working chamber and the ponding in ponding groove 111. A suction nozzle 12 is arranged at one side of the base 11, and the suction nozzle 12 is used for sucking external air into the working cavity 2 assembly. The upper end of base 11 is provided with working chamber 2 subassembly, and the upper end of base 11 is provided with syllable-dividing subassembly 4, and the cavity that the working chamber 2 subassembly was located and forms between base 11 and the syllable-dividing subassembly 4. The water accumulation groove 111 is arranged on the base 11 of the motor 1, after the vacuum pump wades and sucks water reversely, the sucked water is deposited in the water accumulation groove 111, and when the vacuum pump works for the second time, the exhaust pressure in the pump cavity acts on the water accumulation groove 111 (the area of the water accumulation groove 111 is small), and accumulated water is discharged more easily. The exhaust duct 3 is provided with an exhaust port cover 31 for better protection of the exhaust duct 3.

Further, as a preferred embodiment, the working chamber 2 assembly includes an air suction disc 21, a rotor 22, blades 23, a stator 24 and an exhaust disc 25, the air suction disc 21 is disposed on the upper end of the base 11, the stator 24 is disposed on the upper end of the air suction disc 21, the exhaust disc 25 is disposed on the upper end of the stator 24, an inner cavity is formed in the stator 24, the rotor 22 is disposed in the inner cavity, a rotor 22 groove is formed in the upper end of the rotor 22, and the blades 23 are disposed in the rotor 22 groove. The working chamber 2 assembly is fastened on the motor 1 with the water accumulation groove 111 through screws, and the rotor 22 is driven to rotate by the shaft of the motor 1, so that the rotor 22 completes one air suction, compression and exhaust process when rotating for one circle. If the vacuum pump generates suck-back water, the exhaust process gas pressure acts on the water surface in the water collecting tank 111, so that the water in the tank is discharged out of the pump body as much as possible.

Further, as a preferred embodiment, the base 11 is provided with an air inlet 112, the air inlet 112 is communicated with the suction nozzle 12, a bearing hole 113 for penetrating a shaft of the motor 1 is provided at the middle position of the base 11, the air inlet 112 is provided at a side of the bearing hole 113 close to the suction nozzle 12, and the water collecting tank 111 is provided at a side of the bearing hole 113 far from the air inlet 112. The air suction disc 21 is provided with an air suction port communicated with the air inlet 112, and the rotor 22 is provided with a through hole. The exhaust disc 25 is provided with an exhaust hole 251, the exhaust hole 251 is communicated with the air inlet 112, and the exhaust hole 251 is communicated with the water collecting tank 111 and the exhaust pipeline 3. Air is sucked from the suction nozzle 12, enters the cavity of the stator 24 through the air inlet 112 on the base 11, and is discharged from the exhaust hole 251 through the through hole. So that air can enter from the suction nozzle 12 and flow out from the exhaust duct 3, forming a passage. The suction nozzle 12 is provided with a suction port shroud 121. The air suction nozzle 12 can be sleeved on the air suction nozzle 12 to protect the air suction nozzle 12 when not in use. As shown in fig. 1, a through hole (inner cavity) is formed in the middle of the stator 24, the exhaust disc 25 is disposed at the upper end of the stator 24, and the suction disc 21 is disposed at the lower end of the stator 24, wherein a cavity is formed between the suction disc 21, the exhaust disc 25 and the through hole. Air enters the lower end of the suction plate 21 through the air inlet 112, and the suction plate 21 is provided with holes through which the air enters the cavity.

Further, as a preferred embodiment, the upper surface of the base 11 is provided with a first sealing groove, a second sealing groove and a third sealing groove, wherein the inner side of the third sealing groove is provided with the first sealing groove, the inner side of the first sealing groove is provided with the second sealing groove, the first sealing groove is provided with the first sealing ring 5, the second sealing groove is provided with the second sealing ring 6, and the third sealing groove is provided with the third sealing ring 7. First seal 5 second seal 6 and third seal 7 seal air inlet 112, motor 1 bearing and cavity respectively. The working cavity 2 assembly is fastened on the base 11 of the motor 1 through screws, the third sealing ring 7 is compressed at the same time, the bearing of the motor 1 is protected by the second sealing ring 6, the protection of the bearing is realized, and when the water in the water collecting groove 111 is too much, the second sealing ring 6 can prevent the water from flowing into the motor 1 from the bearing of the motor 1 to damage the motor 1.

Further, as a preferred embodiment, the soundproof assembly 4 includes a silencing cover 41 and a soundproof cover 42, the upper end of the exhaust disk 25 is provided with the silencing cover 41, the soundproof cover 42 covers the base 11, and the silencing cover 41 is located in the soundproof cover 42. The exhaust duct 3 uses a stepped hole, the central aperture of the stepped hole is small, on one hand, throttling pressure drop is realized in the normal exhaust process, so that airflow is exhausted in an accelerated manner, and on the other hand, the small aperture can effectively prevent foreign matters with large diameters from being sucked. The vehicle can effectively discharge accumulated water in the pump cavity after the wading vacuum pump reversely absorbs water, and simultaneously, the sealing performance of the bearing of the motor 1 is ensured when the pump cavity stores water, so that the service life of the wading vacuum pump is prolonged. Meanwhile, the stepped exhaust port structure can ensure that larger foreign matters cannot be sucked into the pump cavity.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope and embodiments of the present invention, and it should be appreciated by those skilled in the art that various equivalent and obvious modifications can be made in the present invention and the description and drawings, and all such modifications are intended to be included within the scope and spirit of the present invention.

Claims

1. The utility model provides an electronic vacuum pump with drainage device, its characterized in that includes motor, suction nozzle, working chamber subassembly, exhaust duct and sound insulation subassembly, motor upper end an organic whole is equipped with the base, the ponding groove has been seted up on the base, the lower extreme of base is equipped with exhaust duct, exhaust duct with the ponding groove is linked together, one side of base is equipped with the suction nozzle, the upper end of base is equipped with the working chamber subassembly, the upper end of base is equipped with the sound insulation subassembly, just the working chamber subassembly is located the base with in the cavity that forms between the sound insulation subassembly.

2. The electronic vacuum pump with a water discharge device of claim 1, wherein the working chamber assembly comprises a suction disc, a rotor, a vane, a stator and an exhaust disc, the suction disc is disposed on the upper end of the base, the stator is disposed on the upper end of the suction disc, the exhaust disc is disposed on the upper end of the stator, the stator defines an inner cavity, the rotor is disposed in the inner cavity, a rotor groove is disposed on the upper end of the rotor, and the vane is disposed in the rotor groove.

3. The electronic vacuum pump with a water discharge device as claimed in claim 2, wherein an air inlet is formed on the base, the air inlet is communicated with the air suction nozzle, a bearing hole for passing through a motor shaft of the motor is formed in a middle position of the base, the air inlet is formed on a side of the bearing hole close to the air suction nozzle, and the water collecting tank is formed on a side of the bearing hole far away from the air inlet.

4. The electronic vacuum pump with a water discharge apparatus of claim 1, wherein a third sealing groove is formed on the upper surface of the base, and a third sealing ring is disposed in the third sealing groove.

5. The electronic vacuum pump with a water drainage device of claim 2, wherein the sound insulation assembly comprises a sound insulation sleeve and a sound insulation cover, the sound insulation sleeve is arranged at the upper end of the exhaust disc, the sound insulation cover is arranged on the base, and the sound insulation sleeve is positioned in the sound insulation cover.

6. An electronic vacuum pump having a drain as claimed in claim 1, wherein said suction nozzle is provided with a suction port shroud.

7. The electronic vacuum pump with a water discharge device of claim 3, wherein the air discharge disk is provided with an air discharge hole, the air discharge hole is communicated with the air inlet, and the air discharge hole is communicated with the water collecting tank and the air discharge pipeline.