Electric automobile vacuum pump capable of filtering and preventing dust

Abstract

The utility model discloses a dustproof filtering vacuum pump for an electric automobile, which comprises a main body module, the main body module comprises a vacuum pump main body, an air inlet pipe mounted on one side of the vacuum pump main body, an exhaust pipe mounted on the other side of the vacuum pump main body, a base mounted on one side of the air inlet pipe through threaded connection, a connecting pipe fixed in an inner cavity of the base and extending out of the base, and an annular plate fixed at the end part of the base; the vacuum pump main body is used for generating vacuum and providing a unique and reliable vacuum source for a hydraulic braking system of the electric vehicle, the filtering piece is installed on the annular plate in a threaded connection mode, stretches into an inner cavity of the base and is communicated with the end portion of the connecting pipe, the one-way valve is fixed to the inner wall of the connecting pipe, and the flow velocity sensor is installed on the connecting pipe and stretches into the connecting pipe. The air inlet pipe is used for enabling air to enter the vacuum pump body conveniently, the exhaust pipe is used for exhausting, and the filtering and dustproof electric automobile vacuum pump has the advantages of being capable of filtering and preventing dust and high in practicability.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum pump technical field, concretely is a filter dustproof electric automobile vacuum pump. BACKGROUND

[0002] Electric automobile adopts motor drive, cancels traditional engine, therefore loses vacuum source, namely cannot provide vacuum assist for automobile brake master cylinder, and electric automobile vacuum assist pump produces to make up this deficiency, it adopts vehicle-mounted power supply to provide power, promotes the motor on the pump body to carry out piston movement and thus produces vacuum, provides only, reliable vacuum source for electric automobile, hybrid electric automobile, electric sightseeing vehicle, electric field vehicle etc.

[0003] The existing electric automobile vacuum pump mainly has the following disadvantages in the process of using: the dust and foreign matters mixed in the gas in the running process enter the inside of the vacuum pump body and further cause the vacuum pump body to be damaged, influence the service life of the automobile vacuum pump, therefore, there is room for improvement. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving one of the technical problems existing in prior art or related art.

[0005] Therefore, the utility model adopts the technical scheme, which is a filter dustproof electric automobile vacuum pump, which comprises: a main body module, the main body module comprises a vacuum pump main body, an air inlet pipe installed on one side of the vacuum pump main body, an air outlet pipe installed on the other side of the vacuum pump main body, a base installed on one side of the air inlet pipe through threaded connection, a connecting pipe fixed in the inner cavity of the base and extending out of the base, an annular plate fixed at the end of the base, a filter element installed on the annular plate through threaded connection and extending into the inner cavity of the base and communicating with the end of the connecting pipe, a one-way valve fixed on the inner wall of the connecting pipe, and a flow rate sensor installed on the connecting pipe and extending into the connecting pipe.

[0006] The filter element comprises a cover plate installed on the annular plate through threaded connection, a flow guide plate arranged on one side of the cover plate, a first filter screen fixed at one end of the cover plate and the other end of the flow guide plate, and a second filter screen.

[0007] In a preferred example, the utility model can be further configured as: the annular plate is provided with through holes in an annular array.

[0008] In a preferred example, the utility model can be further configured as: the inner wall of the annular plate is provided with a first internal thread, and the outer side surface of the cover plate is provided with a first external thread, and the two are engaged with each other.

[0009] The utility model discloses a further configuration in a preferable example can be: the end of connecting pipe has annular groove, the end of flow guide pipe is inlayed in annular groove.

[0010] The utility model discloses a further configuration in a preferable example can be: the one-way valve includes annular protrusion fixed on the inner wall of connecting pipe, the I-beam set through annular protrusion and the spring of connecting I-beam one end and annular protrusion, the I-beam principle spring one end is arrayed and has round hole.

[0011] The utility model discloses a further configuration in a preferable example can be: the second outer thread is provided on the outside of base, the second inner thread is provided on the inner wall of air inlet pipe, and the two are engaged with each other.

[0012] The utility model discloses a further configuration in a preferable example can be: the one-way valve includes annular protrusion fixed on the inner wall of connecting pipe, the I-beam set through annular protrusion and the spring of connecting I-beam one end and annular protrusion, the I-beam principle spring one end is arrayed and has round hole.

[0013] Through adopting the above technical scheme, the utility model has the beneficial effects of:

[0014] 1. In the utility model, the base is installed on one side of the air inlet pipe of the vacuum pump main body through threaded connection, the inner cavity of the base is provided with the connecting pipe extending out of the base, the filter element is installed in the base through threaded connection, one end of the filter element is communicated with the connecting pipe, when the vacuum pump main body works, the gas is sent into the filter element through the connecting pipe, and then enters the base after being filtered by the filter element, and finally enters the air inlet pipe through the base, thereby realizing the filtration of the gas, avoiding the damage of the dust and impurities in the gas to the vacuum pump main body, and facilitating the replacement of the filter element.

[0015] 2. In the utility model, the one-way valve is installed on the inner wall of the connecting pipe, which can effectively avoid the backflow of the dust in the filter element into the connecting pipe and cause the blockage of the connecting pipe, and the flow rate sensor is installed on the connecting pipe, which can monitor the gas flow rate in the connecting pipe in real time, and when the gas flow rate in the connecting pipe is lower than the set value, it can be judged that the filter element is blocked due to too much dust, and the alarm instruction is transmitted to the upper computer, reminding the user to clean or replace the filter element in time, thereby further increasing the practicality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structural schematic diagram of the utility model;

[0017] Figure 2 It is another perspective schematic diagram of the utility model;

[0018] Figure 3 It is a decomposition structure schematic view of the utility model;

[0019] Figure 4 It is a section view schematic view of the utility model;

[0020] Figure 5 It is a part structure section schematic view of the utility model.

[0021] Reference signs:

[0022] 100, main body module; 110, vacuum pump main body; 120, air inlet pipe; 130, exhaust pipe; 140, base; 150, connecting pipe; 151, annular groove; 160, annular plate; 161, through hole; 170, filter; 171, cover plate; 172, flow guide pipe; 173, first filter screen; 174, second filter screen; 180, check valve; 181, annular protrusion; 182, I-beam; 183, spring; 190, flow rate sensor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific embodiments and in reference to the drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] Some embodiments of the utility model are described below in combination with the drawings, Embodiment one

[0025] In combination with Figures 1-5 the drawings, the embodiment provides an electric vehicle vacuum pump capable of filtering and preventing dust, which comprises a main body module 100.

[0026] The main body module 100 comprises a vacuum pump main body 110, an air inlet pipe 120 installed on one side of the vacuum pump main body 110, an exhaust pipe 130 installed on the other side of the vacuum pump main body 110, a base 140 installed on one side of the air inlet pipe 120 through threaded connection, a connecting pipe 150 fixed in the inner cavity of the base 140 and extending out of the base 140, an annular plate 160 fixed on the end of the base 140, a filter 170 installed on the annular plate 160 through threaded connection and extending into the inner cavity of the base 140 and communicating with the end of the connecting pipe 150, a check valve 180 fixed on the inner wall of the connecting pipe 150, and a flow rate sensor 190 installed on the connecting pipe 150 and extending into the connecting pipe 150.

[0027] The vacuum pump main body 110 is used for generating vacuum and providing a unique and reliable vacuum source for the hydraulic brake system of the electric vehicle. The air inlet pipe 120 is used for facilitating the entry of gas into the vacuum pump main body 110. The exhaust pipe 130 is used for exhaust.

[0028] The base 140 is cylindrical, and is used to mount other components. A second external thread is arranged on the outer side of the base 140, and a second internal thread is arranged on the inner wall of the air inlet pipe 120. The two are engaged with each other, facilitating mounting and dismounting of the base 140, and increasing the convenience of use.

[0029] The connecting pipe 150 extends into the inner cavity of the base 140 at one end, and extends to the outer side of the base 140 at the other end, and is used to guide the gas into the filter 170. The annular plate 160 is used to mount the filter 170, and ensures the stability of the filter 170. The annular plate 160 is arranged with through holes 161 in an annular array, facilitating the filtered gas to pass through the through holes 161 and enter the air inlet pipe 120.

[0030] The filter 170 is used to filter the dust and impurities in the gas, and avoid the dust and impurities from entering the inner cavity of the vacuum pump body 110. The filter 170 includes a cover plate 171 mounted on the annular plate 160 through a threaded connection, a flow guide plate arranged on one side of the cover plate 171, a first filter screen 173 fixed at one end of the cover plate 171 and fixed at the other end of the flow guide plate, and a second filter screen 174. A first internal thread is arranged on the inner wall of the annular plate 160, and a first external thread is arranged on the outer side of the cover plate 171. The two are engaged with each other, facilitating mounting and dismounting of the cover plate 171, and facilitating mounting and dismounting of the entire filter 170. A annular groove 151 is arranged at the end of the connecting pipe 150, and the end of the flow guide pipe 172 is embedded in the annular groove 151, and is used to guide the gas in the connecting pipe 150 into the inner cavity of the first filter screen 173. The first filter screen 173 and the second filter screen 174 are used to filter the gas, and avoid the dust and impurities in the gas from entering the inner cavity of the vacuum pump body 110.

[0031] The one-way valve 180 can effectively avoid the dust in the filter 170 from flowing back into the connecting pipe 150, causing the connecting pipe 150 to be blocked. The one-way valve 180 includes an annular protrusion 181 fixed on the inner wall of the connecting pipe 150, a I-beam 182 arranged through the annular protrusion 181, and a spring 183 connecting one end of the I-beam 182 and the annular protrusion 181. One end of the I-beam 182 and the spring 183 is arranged with a circular hole in an array. When the vacuum pump body 110 is working, the gas pressure pushes the I-beam 182 to move to the side of the filter 170. At this time, the gas in the connecting pipe 150 enters the filter 170 through the circular hole. When the vacuum pump body 110 stops working, the spring 183 drives the I-beam 182 to move away from the filter 170, so that one side of the I-beam 182 is tightly attached to the annular protrusion 181, closing the connecting pipe 150, and avoiding the dust in the filter 170 from flowing into the connecting pipe 150.

[0032] The flow rate sensor 190 is used to monitor the gas flow rate in the connecting pipe 150 in real time. When the gas flow rate in the connecting pipe 150 is lower than the set value, it can be determined that there is too much dust in the filter element 170 causing blockage. An alarm command is transmitted to the host computer to remind the user to clean or replace the filter element 170 in time, thus improving the level of intelligence.

[0033] The working principle and usage process of this utility model are as follows: During operation, the vacuum pump body 110 draws gas into the filter element 170 through the connecting pipe 150. After entering the filter element 170, the gas passes through the first filter screen 173 and the second filter screen 174, where dust and impurities are filtered out. The gas then enters the inner cavity of the base 140, and from there through the through hole 161 on the annular plate 160 into the inlet pipe 120, finally entering the vacuum pump body 110. This prevents dust and impurities from entering the vacuum pump body 110. Simultaneously, the one-way valve 180 effectively prevents dust from the filter element 170 from flowing back into the connecting pipe 150. If the connecting pipe 150 becomes blocked, the flow rate sensor 190 monitors the gas flow rate in the connecting pipe 150 in real time as the gas passes through it. When the gas flow rate in the connecting pipe 150 is lower than the set value, it can be determined that the filter element 170 is blocked due to excessive dust. An alarm command is transmitted to the host computer to remind the user to clean or replace the filter element 170 in time. When the filter element 170 needs to be replaced, unscrew the base 140, then unscrew the filter element 170, clean or replace the new filter element 170, screw the new filter element 170 into the base 140, and then screw the base 140 into the air inlet pipe 120 to complete the replacement of the filter element 170.

[0034] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A dust-filtering vacuum pump for electric vehicles, comprising: The main module (100) is characterized in that it includes a vacuum pump body (110), an inlet pipe (120) installed on one side of the vacuum pump body (110), an exhaust pipe (130) installed on the other side of the vacuum pump body (110), a base (140) installed on one side of the inlet pipe (120) by a threaded connection, a connecting pipe (150) fixed in the inner cavity of the base (140) and extending out of the base (140), an annular plate (160) fixed at the end of the base (140), a filter element (170) installed on the annular plate (160) by a threaded connection and extending into the inner cavity of the base (140) and communicating with the end of the connecting pipe (150), a one-way valve (180) fixed on the inner wall of the connecting pipe (150), and a flow rate sensor (190) installed on the connecting pipe (150) and extending into the connecting pipe (150). The filter element (170) includes a cover plate (171) installed on an annular plate (160) by a threaded connection, a guide plate disposed on one side of the cover plate (171), a first filter screen (173) fixed at one end to the cover plate (171) and the other end fixed to the guide plate, and a second filter screen (174).

2. The electric vehicle vacuum pump for filtering and preventing dust according to claim 1, characterized in that, The annular plate (160) has through holes (161) arranged in a ring array.

3. The electric vehicle vacuum pump for filtering and preventing dust according to claim 1, characterized in that, The inner wall of the annular plate (160) is provided with a first internal thread, and the outer surface of the cover plate (171) is provided with a first external thread, and the two mesh with each other.

4. The electric vehicle vacuum pump for filtering and preventing dust according to claim 1, characterized in that, The end of the connecting pipe (150) has an annular groove (151), and the end of the guide pipe (172) is fitted into the annular groove (151).

5. The electric vehicle vacuum pump for filtering and preventing dust according to claim 1, characterized in that, The one-way valve (180) includes an annular protrusion (181) fixed on the inner wall of the connecting pipe (150), an I-beam plate (182) passing through the annular protrusion (181), and a spring (183) connecting one end of the I-beam plate (182) and the annular protrusion (181). The I-beam plate (182) and the spring (183) have an array of round holes at one end.

6. The electric vehicle vacuum pump for filtering and preventing dust according to claim 1, characterized in that, The outer side of the base (140) is provided with a second external thread, and the inner wall of the air intake pipe (120) is provided with a second internal thread, and the two mesh with each other.

7. The electric vehicle vacuum pump for filtering and preventing dust according to claim 1, characterized in that, A rectangular plate is fixed to one side of the cover plate (171).

Images