CN208311055U - A kind of vacuum pump - Google Patents
A kind of vacuum pump Download PDFInfo
- Publication number
- CN208311055U CN208311055U CN201820945919.1U CN201820945919U CN208311055U CN 208311055 U CN208311055 U CN 208311055U CN 201820945919 U CN201820945919 U CN 201820945919U CN 208311055 U CN208311055 U CN 208311055U
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- chamber
- hole
- sealing element
- control chamber
- bracket
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- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 60
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000740 bleeding effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model provides a kind of vacuum pump.This vacuum pump includes successively connected bracket, front stator and rear stator, before, chamber one is respectively provided in stator afterwards, two, stator is equipped with the rear exhaust port being connected to chamber two afterwards, bracket is equipped with air inlet, front stator is equipped with the front-seat port being connected to chamber one, exhaust passage one is equipped between bracket and front stator, two, exhaust passage one enters, outlet is connected to air inlet and chamber one respectively, there is control chamber in bracket, control chamber passed through gas channel with exhaust passage one and was connected to, exhaust passage two enters, outlet is connected to front-seat port and control chamber respectively, air guide channel is equipped between bracket and rear stator, air guide channel enters, outlet is connected to control chamber and chamber two respectively, bracket is equipped with the control mechanism for controlling gas channel and control chamber on-off or controlling exhaust passage two and control chamber on-off, gas channel is crossed to be connected to control chamber Replace with exhaust passage two and control chamber connection.This vacuum pump has the advantages that pumping efficiency is high.
Description
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of vacuum pump.
Background technique
Vacuum pump, which refers to, to be obtained using machinery, physics, chemically or physically chemical method to being evacuated by pumping container
The device or equipment of vacuum.For popular, vacuum pump is to improve, generate and maintain true in a certain enclosure space with various methods
Empty device.
A kind of existing vacuum pump electric vacuum pump for automobile as disclosed in chinese patent library [application number:
201320655179.5], including driving motor, pump housing bracket, rotor assembly, field frame assembly and shell, field frame assembly include upper
Cover board, rotor chamber and lower cover plate, field frame assembly and drive motor shaft form radial disbalance, and rotor assembly is equipped with blade groove, pump
Body support frame is equipped with bleeding point, and noise reduction cushion chamber is equipped between the pump housing bracket and shell, wherein it is filled with noise reduction substance, it is fixed
Sub- assembly upper cover plate is equipped with the gas vent that communicates with noise reduction cushion chamber, and lower cover plate is equipped with to be communicated with pump housing bracket bleeding point
Aspirating hole.
Above-mentioned vacuum pump has a problem that: due to gas vent only one, lead to the pumping when vacuum pump just starts
It is inefficient.
Utility model content
The purpose of this utility model is the presence of the above problem in view of the prior art, proposes a kind of vacuum pump, solution
Technical problem is how to improve pumping efficiency.
The purpose of this utility model can be realized by the following technical scheme: a kind of vacuum pump, including successively connected branch
Frame, front stator and rear stator, the interior chamber one having for installing blade of front stator, rear stator is interior to be had for installing blade
Chamber two, the rear stator are equipped with the rear exhaust port being connected to chamber two, and the bracket is equipped with air inlet, feature
It is, the front stator is equipped with the front-seat port being connected to chamber one, and exhaust passage one is equipped between bracket and front stator
With exhaust passage two, and the entrance and exit of exhaust passage one is connected to above-mentioned air inlet and chamber one respectively, the branch
There is control chamber, and control chamber is connected to exhaust passage one by the gas channel of crossing being set in bracket in frame, exhaust passage two
Entrance and exit is connected to front-seat port and control chamber respectively, air guide channel is equipped between the bracket and rear stator, and lead
The entrance and exit in gas channel is connected to control chamber and chamber two respectively, and the bracket, which is equipped with, can control gas channel and control
Chamber on-off processed or the control mechanism for controlling exhaust passage two and control chamber on-off, and cross gas channel and control chamber connection and be vented logical
Road two is connected to alternately with control chamber.
Use process is as follows: when vacuum pump is initially powered, under control mechanism effect, control chamber and exhaust passage two are disconnected,
And be connected at this point, crossing gas channel with control chamber, gas is drawn into exhaust passage one by air inlet, and a part of gas is through chamber one
And by front-seat port discharge, another part gas passed through gas channel and entered in control chamber, logical then in turn through air guide
Road and chamber two are simultaneously discharged by rear exhaust port, effectively to increase pumping efficiency；When vacuum pump work certain time vacuum degree reaches
After certain value, control mechanism work disconnected gas channel and control chamber, and at this point, control chamber is connected to exhaust passage two, gas
Body is entered in exhaust passage one by air inlet, and it is logical then to pass sequentially through front-seat port, exhaust passage two, control chamber, air guide
Road enters in chamber two, is discharged eventually by rear exhaust port, to obtain preferable vacuum degree.
In above-mentioned vacuum pump, the entrance of the air guide channel be located at exhaust passage two outlet and cross gas channel it
Between, there are two connecting holes for being connected to the control chamber with gas channel and exhaust passage two excessively respectively in the control chamber, it is described
Control mechanism include actuator and the sealing element in control chamber, the actuator can drive sealing element mobile to distinguish
Close two connecting holes.Using above-mentioned design, have the advantages that structure is simple, easy to assembly.
In above-mentioned vacuum pump, two above-mentioned connection hole sites are faced, and the sealing element is in the shape of a rod, and sealing element
Both ends respectively with two connecting hole faces, sealing element can move under the action of the actuator along the distribution arrangement of two connecting holes
It moves to close off two connecting holes.Using above-mentioned design, the distance between each components can be effectively reduced, to be effectively compressed control
The volume of chamber processed makes the structure of entire vacuum pump become more compact.
In above-mentioned vacuum pump, two above-mentioned connecting holes are taper hole, and the two ends adjoining on two connecting holes
The diameter of mouth is maximum, and above-mentioned sealing element includes connecting rod and is arranged and is fixed on connecting rod upper seal one, the sealing ring one
Both ends lateral wall on all have with the matched conical seal (contact) face of the hole wall of connecting hole, and two conical seal (contact) faces can respectively with two connect
The hole wall for connecing hole offsets to form sealing.Under the cooperation of conical seal (contact) face and connecting hole hole wall, closing connecting hole can be stablized, to mention
High operational stability.
Alternatively, in above-mentioned vacuum pump, rounded, the above-mentioned sealing element packet of two above-mentioned connecting holes
Include support rod, the both ends of support rod are arranged and are fixed with 0 shape circle, and the outer peripheral surface of two 0 shape circles can respectively with two connecting holes
Hole wall offsets.
In above-mentioned vacuum pump, the actuator includes spring and the electromagnetic core connected with bracket, the mistake
Gas channel is equipped with the through-hole with sealing element face, and through-hole is located at electromagnetic core and crosses between gas channel, one end of sealing element
It across connecting hole and is inserted in through-hole, and sealing, electricity is formed by sealing ring two between the side wall of sealing element and the hole wall of through-hole
The main shaft of magnetic core and one end of sealing element are fixedly connected with, the both ends of the spring respectively with the other end of sealing element and bracket
Inner wall offsets, and the axis of spring extends along the distribution arrangement of two connecting holes.
Alternatively, in above-mentioned vacuum pump, the actuator is electric pushrod, and described crosses gas channel
It is equipped with the through-hole with sealing element face, one end of sealing element sequentially passes through connecting hole and through-hole and the main shaft phase with electric pushrod
Even.
Compared with prior art, this vacuum pump is acted in rigid starting in control mechanism, and control chamber and exhaust passage two are disconnected
It opens and crosses gas channel and be connected to control chamber, promote front-seat port and rear exhaust port while being vented, front stator and rear stator be simultaneously at this time
Connection is to form two single-stage vacuum pumps, to effectively increase pumping efficiency；Reach one in vacuum pump work certain time vacuum degree
It after definite value, is acted in control mechanism, crosses gas channel with control chamber disconnection and control chamber is connected to exhaust passage two, make vacuum pump only
It is vented by rear exhaust port, front stator and rear stator connect to form a two-stage vacuum pump to obtain better vacuum degree at this time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this vacuum pump.
Fig. 2 is the configuration schematic diagram of this vacuum pump.
The positional structure schematic diagram of sealing element when Fig. 3 is electromagnetic core power loss.
Fig. 4 is the enlarged structure schematic diagram in Fig. 3 at B.
Fig. 5 is the positional structure schematic diagram of sealing element when electromagnetic core obtains electric.
In figure, 1, bracket；1a, air inlet；1b, control chamber；1b1, connecting hole；1c, gas channel is crossed；2, front stator；It is 2a, preceding
Exhaust outlet；3, rear stator；3a, rear exhaust port；4, chamber two；5, suction nozzle；6, exhaust passage one；7, exhaust passage two；8, it leads
Gas channel；9, connecting rod；10, sealing ring one；10a, conical seal (contact) face；11, spring；12, electromagnetic core；13, sealing ring two.
Specific embodiment
It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these examples.
Embodiment one
As shown in Figure 1, this vacuum pump is made of bracket 1, front stator 2, rear stator 3, control mechanism etc..
Specifically, as depicted in figs. 1 and 2, front stator 2 is between rear stator 3 and bracket 1, and bracket 1, front stator 2
It is successively fixed together with rear 3 three of stator.Wherein, there is the chamber one for installing blade, in rear stator 3 in front stator 2
With the chamber 24 for installing blade, and rear stator 3 is equipped with the rear exhaust port 3a being connected to chamber 24.It is set on bracket 1
There is air inlet 1a, and in actual use, suction nozzle 5 is installed at air inlet 1a.
As shown in Figures 1 to 5, front stator 2 is equipped with front-seat port 2a, and preferred front-seat port 2a is in a strip shape.1 He of bracket
Between front stator 2 be equipped with exhaust passage 1 and exhaust passage 27, wherein the entrance and exit of exhaust passage 1 respectively with into
Port 1a is connected to chamber one.There is control chamber 1b, and control chamber 1b and exhaust passage 1 are by being set in bracket 1 in bracket 1
Cross gas channel 1c connection.The entrance and exit of exhaust passage 27 is connected to front-seat port 2a and control chamber 1b respectively.Bracket 1
Air guide channel 8 is equipped between rear stator 3, and the entrance and exit of air guide channel 8 connects with control chamber 1b and chamber 24 respectively
It is logical.Control mechanism is set on bracket 1, and control mechanism can control gas channel 1c and control chamber 1b on-off or control exhaust passage two
7 and control chamber 1b on-off, and cross gas channel 1c and control chamber 1b connection be connected to exhaust passage 27 and control chamber 1b replace into
Row.
In the present embodiment, as shown in Figures 3 to 5, the entrance of air guide channel 8 is located at the outlet and mistake of exhaust passage 27
Between the 1c of gas channel.There are be connected to control chamber 1b with gas channel 1c and exhaust passage 27 excessively respectively two on control chamber 1b
Connecting hole 1b1, control mechanism include actuator and the sealing element in control chamber 1b, and actuator can drive sealing element mobile next
Close off two connecting hole 1b1.It further illustrates, as shown in Figure 1, two positions connecting hole 1b1 face, sealing element is in the shape of a rod,
And the both ends of sealing element, respectively with two connecting hole 1b1 faces, sealing element can be along point of two connecting hole 1b1 under the action of actuator
Cloth direction is mobile to close off two connecting hole 1b1.
It further illustrates, two connecting hole 1b1 are taper hole, and the two ports adjoining on two connecting hole 1b1 is straight
Diameter is maximum.Sealing element includes connecting rod 9 and is arranged and is fixed on 9 upper seal 1 of connecting rod, the both ends lateral wall of sealing ring 1
On all have with the matched conical seal (contact) face 10a of the hole wall of connecting hole 1b1, and two conical seal (contact) face 10a can be connect with two respectively
The hole wall of hole 1b1 offsets to form sealing.
As shown in figure 3, actuator includes spring 11 and the electromagnetic core 12 connected with bracket 1.Wherein, it crosses on the 1c of gas channel
Equipped with the through-hole with sealing element face, and through-hole is located at electromagnetic core and crosses between gas channel, and one end of sealing element passes through connection
Hole is simultaneously inserted in through-hole, and forms sealing by sealing ring 2 13 between the side wall of sealing element and the hole wall of through-hole.Electromagnetic core
Main shaft and one end of sealing element be fixedly connected with, inner wall of the both ends of spring 11 respectively with the other end of sealing element and bracket 1 offsets,
And the axis of spring 11 extends along the distribution arrangement of two connecting hole 1b1.
Use process is as follows: as shown in Figure 1 and Figure 5, when vacuum pump is initially powered, electromagnetic core 12 electric must keep its main shaft downward
It stretches out and pushes connecting rod 9 that 11 elastic force of spring is overcome to move down, entering sealing ring 1 in the connecting hole 1b1 of lower part makes to control
Chamber 1b and exhaust passage 27 disconnect, and are connected at this point, crossing gas channel 1c with control chamber 1b, gas is drawn into exhaust by air inlet 1a
In channel 1, a part of gas passes through front-seat port 2a discharge through chamber together, another part gas passed through gas channel 1c into
Enter into control chamber 1b, be discharged then in turn through air guide channel 8 and chamber 24 and by rear exhaust port 3a, with effective increasing pumping
Gas efficiency；Shown in as shown in Figure 1, Figure 3 and Figure 4, after vacuum pump work certain time vacuum degree reaches certain value, electromagnetic core 12 is lost
Electricity, connecting rod 9 move up under the effect of spring 11, and entering sealing ring 1 in superposed connecting hole 1b1 made gas channel
1c and control chamber 1b is disconnected, at this point, control chamber 1b is connected to exhaust passage 27, gas enters exhaust by air inlet 1a and leads to
In road 1, then passes sequentially through front-seat port 2a, exhaust passage 27, control chamber 1b, air guide channel 8 and enters in chamber 24,
It is discharged eventually by rear exhaust port 3a, to obtain preferable vacuum degree.
Embodiment two
The present embodiment two is essentially identical with the structure and principle of embodiment one, the difference is that: two connecting hole 1b1
Rounded, sealing element includes support rod, and the both ends of support rod are arranged and are fixed with 0 shape circle, and the outer peripheral surface energy of two 0 shape circles
The hole wall with two connecting hole 1b1 offsets respectively.
Embodiment three
The present embodiment three is essentially identical with the structure and principle of embodiment one, the difference is that: actuator is electricity
Dynamic push rod crosses gas channel 1c equipped with the through-hole with sealing element face, and one end of sealing element sequentially passes through connecting hole 1b1 and through-hole
And it is connected with the main shaft of electric pushrod.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Claims (7)
1. a kind of vacuum pump has in front stator (2) and uses including successively connected bracket (1), front stator (2) and rear stator (3)
In having the chamber two (4) for installing blade in the chamber one of installation blade, rear stator (3), set on the rear stator (3)
There is the rear exhaust port (3a) being connected to chamber two (4), the bracket (1) is equipped with air inlet (1a), which is characterized in that described
Front stator (2) be equipped with the front-seat port (2a) that be connected to chamber one, be equipped with to be vented between bracket (1) and front stator (2) and lead to
Road one (6) and exhaust passage two (7), and the entrance and exit of exhaust passage one (6) respectively with above-mentioned air inlet (1a) and chamber
Room one is connected to, and has control chamber (1b) in the bracket (1), and control chamber (1b) and exhaust passage one (6) pass through set on branch
In frame (1) cross gas channel (1c) connection, the entrance and exit of exhaust passage two (7) respectively with front-seat port (2a) and control chamber
(1b) connection, between the bracket (1) and rear stator (3) be equipped with air guide channel (8), and the entrance of air guide channel (8) and out
Mouth is connected to control chamber (1b) and chamber two (4) respectively, and the bracket (1), which is equipped with, can control gas channel (1c) and control
Chamber (1b) on-off or the control mechanism for controlling exhaust passage two (7) and control chamber (1b) on-off, and cross gas channel (1c) and control
Chamber (1b) connection is connected to alternately with exhaust passage two (7) and control chamber (1b).
2. vacuum pump according to claim 1, which is characterized in that it is logical that the entrance of the air guide channel (8) is located at exhaust
The outlet in road two (7) and cross between gas channel (1c), have in the control chamber (1b) make the control chamber (1b) respectively with mistake
Two connecting holes (1b1) that gas channel (1c) is connected to exhaust passage two (7), the control mechanism include actuator and be set to control
Sealing element in chamber (1b) processed, the actuator can drive sealing element mobile to close off two connecting holes (1b1).
3. vacuum pump according to claim 2, which is characterized in that two above-mentioned positions connecting hole (1b1) face, described
Sealing element it is in the shape of a rod, and the both ends of sealing element respectively with two connecting holes (1b1) face, work of the sealing element in the actuator
It can be moved with lower along the distribution arrangement of two connecting holes (1b1) to close off two connecting holes (1b1).
4. vacuum pump according to claim 3, which is characterized in that two above-mentioned connecting holes (1b1) are taper hole, and two connect
The diameter for connecing the two ports adjoining on hole (1b1) is maximum, and above-mentioned sealing element includes connecting rod (9) and is arranged and is fixed on
Connecting rod (9) upper seal one (10) all has on the both ends lateral wall of the sealing ring one (10) and the hole of connecting hole (1b1)
The matched conical seal (contact) face of wall (10a), and two conical seal (contact) faces (10a) can offset with the hole wall of two connecting holes (1b1) shape respectively
At sealing.
5. vacuum pump according to claim 3, which is characterized in that two above-mentioned connecting holes (1b1) are rounded, above-mentioned
Sealing element includes support rod, and the both ends of support rod are arranged and are fixed with 0 shape circle, and the outer peripheral surface of two 0 shape circles can be respectively with two
The hole wall of connecting hole (1b1) offsets.
6. according to vacuum pump described in claim 3 or 4 or 5, which is characterized in that the actuator include spring (11) and with
The connected electromagnetic core (12) of bracket (1), gas channel (1c) excessively are equipped with the through-hole with sealing element face, and through-hole position
It in electromagnetic core (12) and crosses between gas channel (1c), one end of sealing element passes through connecting hole (1b1) and is inserted in through-hole, and close
Sealing, the main shaft and sealing element of electromagnetic core (12) are formed by sealing ring two (13) between the side wall of sealing and the hole wall of through-hole
One end be fixedly connected with, inner wall of the both ends of the spring (11) respectively with the other end of sealing element and bracket (1) offsets, and bullet
The axis of spring (11) extends along the distribution arrangement of two connecting holes (1b1).
7. according to vacuum pump described in claim 3 or 4 or 5, which is characterized in that the actuator is electric pushrod, described
Cross gas channel (1c) be equipped with through-hole with sealing element face, one end of sealing element sequentially passes through connecting hole (1b1) and through-hole
And it is connected with the main shaft of electric pushrod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820945919.1U CN208311055U (en) | 2018-06-19 | 2018-06-19 | A kind of vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820945919.1U CN208311055U (en) | 2018-06-19 | 2018-06-19 | A kind of vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311055U true CN208311055U (en) | 2019-01-01 |
Family
ID=64708633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820945919.1U Withdrawn - After Issue CN208311055U (en) | 2018-06-19 | 2018-06-19 | A kind of vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533494A (en) * | 2018-06-19 | 2018-09-14 | 温岭市维朋制冷设备有限公司 | A kind of vacuum pump |
-
2018
- 2018-06-19 CN CN201820945919.1U patent/CN208311055U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533494A (en) * | 2018-06-19 | 2018-09-14 | 温岭市维朋制冷设备有限公司 | A kind of vacuum pump |
| CN108533494B (en) * | 2018-06-19 | 2024-02-20 | 浙江维朋制冷设备有限公司 | Vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317500 No. 998 Kowloon Road, Chengxi street, Wenling City, Taizhou, Zhejiang. Patentee after: Zhejiang weipeng refrigeration equipment Co.,Ltd. Address before: 317500 No. 998 Kowloon Road, Chengxi street, Wenling City, Taizhou, Zhejiang. Patentee before: WENLING WIPCOOL REFRIGERATION EQUIPMENT Co.,Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190101 Effective date of abandoning: 20240220 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190101 Effective date of abandoning: 20240220 |