CN101886624A - Vacuum pump without pressure difference - Google Patents
Vacuum pump without pressure difference Download PDFInfo
- Publication number
- CN101886624A CN101886624A CN 201010216971 CN201010216971A CN101886624A CN 101886624 A CN101886624 A CN 101886624A CN 201010216971 CN201010216971 CN 201010216971 CN 201010216971 A CN201010216971 A CN 201010216971A CN 101886624 A CN101886624 A CN 101886624A
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- vacuum pump
- housing
- main body
- pressure difference
- baffler
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Abstract
The invention discloses a vacuum pump without pressure difference, which comprises a main body of the vacuum pump, an aspirating hole of the vacuum pump and an exhaust hole of the vacuum pump are arranged on the main body of the vacuum pump, the main body of the vacuum pump is sealed in a housing, and an air inlet and an air outlet are arranged on the housing. The main body of the vacuum pump without the pressure difference is sealed in the housing, when the vacuum pump works, the air inlet on the housing is connected with a device which needs to carry out air aspiration, so that the pressure in the housing is far lower than the pressure outside the housing, the pressure different is acted on the hermetic housing generally, and the main body of the vacuum pump can work under the relatively vacuum state; therefore, a motor of the main body of the vacuum pump always runs under the state without the pressure difference, and the vacuum pump can greatly reduce the power loss, always keep the running state smooth and prolong the service life of the motor. Simultaneously, as the interior of the housing is in the vacuum state almost, the vacuum pump can effectively isolate the mechanical noise produced when the pump body runs, and reduce the noise produced by the vacuum pump.
Description
Technical field
The present invention relates to a kind of vacuum pump, particularly a kind of vacuum pump that can be operated under the no pressure reduction state.
Background technique
The type of vacuum pump is varied, and it is widely used in fields such as plastics machinery, pesticide chemical, dye chemical industry, tile machinery, Cryo Equipment, papermaking equipment, medication chemistry, food machinery, industrial furnace, electron trade, vacuum equipment, chemical fertilizer, metallurgy, oil, mine, ground processing.The working principle of vacuum pump mainly is by modes such as the volume-variation of container or extruding, reaches the purpose of pump drainage gas.Existing vaccum pump unit generally adopts the AC and DC motor as motive force, and the pump housing is generally mechanisms such as piston, screw rod, impeller or diaphragm, and the pump housing is provided with independently inlet hole and exhaust port.
There is a shortcoming in existing vacuum pump, the pump housing must overcome the pressure that inside and outside differential pressure produces when it moves exactly, will occur the pump housing like this and start the phenomenon that back loading obviously increases, make the power of motor loss obviously increase (because of the part power consumpiton is overcoming on the pressure that inside and outside differential pressure produces), sometimes even can occur can not be with carrying a situation about starting.Have, the existing general noise of vacuum pump is bigger, easily surrounding environment is caused noise pollution again.
Summary of the invention
At above-mentioned the deficiencies in the prior art, the technical problem to be solved in the present invention provides that a kind of inside and outside differential pressure is little, the vacuum pump of low noise.
For solving the problems of the technologies described above, the present invention adopts following technological scheme:
A kind of vacuum pump without pressure difference comprises a vacuum pump main body, and described vacuum pump main body is provided with vacuum pump bleeder hole and vacuum pump exhaust port, and described vacuum pump body seal is in a housing, and described housing is provided with inlet hole and air outlet hole.
Preferably, also be provided with a baffler in the described housing, described baffler is provided with baffler inlet hole and baffler air outlet hole, and described vacuum pump exhaust port is communicated with the inlet hole of described baffler, and described baffler air outlet hole is communicated with the air outlet hole of described housing.
Preferably, described baffler adopts the mazy type noise-reducing structure.
Preferably, described vacuum pump main body comprises motor, cylinder and piston, and described piston is positioned at described cylinder, and an end of described piston is provided with connecting rod, the output shaft of described motor is connected with described connecting rod by an eccentric wheel, and described vacuum pump bleeder hole, vacuum pump exhaust port are positioned on the described cylinder.
Technique scheme has following beneficial effect: the vacuum pump body seal of this vacuum pump without pressure difference is in housing, when work, inlet hole on the housing is connected with the device that need bleed, therefore the air pressure in the housing will be far smaller than the outer air pressure of housing, pressure difference generally only acts on the can, the vacuum pump main body can be carried out work under the state of relative vacuum, thereby the motor that makes the vacuum pump main body is in the state operation down of no pressure reduction all the time, lowered power loss greatly, running state also remains steadily, prolongs electrical machinery life.Simultaneously, owing to almost be in vacuum state in the housing, the mechanicalness noise of the generation in the time of therefore also can effectively completely cutting off pump housing operation reduces the noise that this vacuum pump produces.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described in detail.
As shown in Figure 1, this vacuum pump without pressure difference comprises a vacuum pump main body, and this vacuum pump main body is a slide valve pump, it comprises motor 19, cylinder 13 and piston 10, piston 10 is positioned at cylinder 13, and an end of piston 10 is provided with connecting rod 12, and the output shaft of motor 19 is connected with connecting rod 12 by an eccentric wheel 17.Motor 19 drives piston 10 by eccentric wheel 17 and moves reciprocatingly in cylinder 13, makes the volume-variation in the cylinder realize outwards bleeding.Cylinder 13 is provided with vacuum pump bleeder hole 5 and vacuum pump exhaust port 4.This vacuum pump body seal is in a housing 1, and housing 1 is provided with inlet hole 24 and air outlet hole 23, also is provided with a baffler 2 in the housing 1, and baffler adopts the mazy type noise-reducing structure.Baffler 2 is provided with baffler inlet hole 3 and baffler air outlet hole, and vacuum pump exhaust port 4 is communicated with the inlet hole of baffler 3, and the baffler air outlet hole is communicated with the air outlet hole 23 of housing.
The vacuum pump main body also can adopt other forms of vacuum pump, as rotary-vane vaccum pump, stator formula vacuum pump etc.
This vacuum pump without pressure difference is when work, inlet hole 24 on the housing 1 is connected with the device that need bleed, therefore the air pressure in the housing 1 is identical with the air pressure that needs air extractor but will be far smaller than housing atmospheric gas pressure outward, so pressure difference only acts on the can.The vacuum pump main body can be carried out work under the state of relative vacuum, cylinder 13 inside and outside differential pressures are almost nil, friction between piston 10 and the cylinder 13 is very little, motor 19 power maintain a relatively low level and turn round, thereby reach energy saving purposes and lowered power loss greatly, and running state can remain steadily, effectively prolongs the working life of motor 19.Simultaneously, the baffler 2 of mazy type noise-reducing structure can lower exhaust noise greatly, vacuum state and mazy type noise-reducing structure, and the noise when making pump housing operation is extremely low, has reached the purpose of environmental protection.
Because the power of electrical consumption is lower, therefore, can utilize less motor, reaches higher vacuum values.This novel vacuum pump has only at power of motor under several watts the situation, and the relative vacuum value can reach 800mba.(for example: the vacuum freshness retaining of refrigerator etc.), medical equipment and other industrial vaccum-pumping equipment can be used for daily electrical home appliance.It can be effectively to food and some other must fresh-keeping preservation article (as medical articles such as blood, organs) etc. carry out effective, long-term fresh-keepingly, and do not need to consume energy always, and just between the starting period, expend extremely low electric energy.
More than a kind of vacuum pump without pressure difference that the embodiment of the invention provided is described in detail; for one of ordinary skill in the art; thought according to the embodiment of the invention; part in specific embodiments and applications all can change; in sum; this description should not be construed as limitation of the present invention, and all any changes of making according to design philosophy of the present invention are all within protection scope of the present invention.
Claims (4)
1. a vacuum pump without pressure difference comprises a vacuum pump main body, and described vacuum pump main body is provided with vacuum pump bleeder hole and vacuum pump exhaust port, it is characterized in that: described vacuum pump body seal is in a housing, and described housing is provided with inlet hole and air outlet hole.
2. vacuum pump without pressure difference according to claim 1, it is characterized in that: also be provided with a baffler in the described housing, described baffler is provided with baffler inlet hole and baffler air outlet hole, described vacuum pump exhaust port is communicated with the inlet hole of described baffler, and described baffler air outlet hole is communicated with the air outlet hole of described housing.
3. vacuum pump without pressure difference according to claim 2 is characterized in that: described baffler adopts the mazy type noise-reducing structure.
4. vacuum pump without pressure difference according to claim 1, it is characterized in that: described vacuum pump main body comprises motor, cylinder and piston, described piston is positioned at described cylinder, one end of described piston is provided with connecting rod, the output shaft of described motor is connected with described connecting rod by an eccentric wheel, and described vacuum pump bleeder hole, vacuum pump exhaust port are positioned on the described cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010216971 CN101886624A (en) | 2010-07-05 | 2010-07-05 | Vacuum pump without pressure difference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010216971 CN101886624A (en) | 2010-07-05 | 2010-07-05 | Vacuum pump without pressure difference |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101886624A true CN101886624A (en) | 2010-11-17 |
Family
ID=43072671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010216971 Pending CN101886624A (en) | 2010-07-05 | 2010-07-05 | Vacuum pump without pressure difference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101886624A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989774A (en) * | 2017-12-11 | 2018-05-04 | 青岛海尔股份有限公司 | Vacuum pump discharges pipe muffler and refrigerator |
| CN108131277A (en) * | 2017-12-11 | 2018-06-08 | 青岛海尔股份有限公司 | Porous resistive muffler and refrigerator |
| CN108150388A (en) * | 2017-12-11 | 2018-06-12 | 青岛海尔股份有限公司 | Cavity muffler and refrigerator |
| CN108253716A (en) * | 2017-12-11 | 2018-07-06 | 青岛海尔股份有限公司 | Sealing element, vacuum subassembly and refrigerator |
| CN108302008A (en) * | 2017-12-11 | 2018-07-20 | 青岛海尔股份有限公司 | Single-chamber muffler and refrigerator |
| CN111118525A (en) * | 2020-02-16 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
| US11274875B2 (en) * | 2017-12-11 | 2022-03-15 | Qingdao Haier Co., Ltd. | Refrigerator |
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| CN2308726Y (en) * | 1997-09-16 | 1999-02-24 | 成都南光实业股份有限公司 | Direct linkage rotary blade vacuum pump |
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| CN201407141Y (en) * | 2009-04-24 | 2010-02-17 | 上海舒平精工机械有限公司 | Vacuum pump installation structure of woodwork processing center |
| CN201730793U (en) * | 2010-07-05 | 2011-02-02 | 苏州盟通利机电设备有限公司 | Non-pressure-difference type vacuum pump |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2308726Y (en) * | 1997-09-16 | 1999-02-24 | 成都南光实业股份有限公司 | Direct linkage rotary blade vacuum pump |
| CN2779106Y (en) * | 2005-03-24 | 2006-05-10 | 广东风华高新科技集团有限公司 | Oil-less vacuum pump |
| CN201034067Y (en) * | 2007-04-14 | 2008-03-12 | 叶仲伦 | Electric air-extracting pump |
| CN201129286Y (en) * | 2007-11-01 | 2008-10-08 | 梁礼智 | Electromagnetic type low negative pressure vacuum pump |
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| CN201730793U (en) * | 2010-07-05 | 2011-02-02 | 苏州盟通利机电设备有限公司 | Non-pressure-difference type vacuum pump |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108253716B (en) * | 2017-12-11 | 2020-03-17 | 青岛海尔股份有限公司 | Sealing member, vacuum assembly and refrigerator |
| CN108131277A (en) * | 2017-12-11 | 2018-06-08 | 青岛海尔股份有限公司 | Porous resistive muffler and refrigerator |
| CN108150388A (en) * | 2017-12-11 | 2018-06-12 | 青岛海尔股份有限公司 | Cavity muffler and refrigerator |
| CN108253716A (en) * | 2017-12-11 | 2018-07-06 | 青岛海尔股份有限公司 | Sealing element, vacuum subassembly and refrigerator |
| CN108302008A (en) * | 2017-12-11 | 2018-07-20 | 青岛海尔股份有限公司 | Single-chamber muffler and refrigerator |
| WO2019114625A1 (en) * | 2017-12-11 | 2019-06-20 | 青岛海尔股份有限公司 | Vacuum pump vent pipe silencer and refrigerator having same |
| CN107989774A (en) * | 2017-12-11 | 2018-05-04 | 青岛海尔股份有限公司 | Vacuum pump discharges pipe muffler and refrigerator |
| EP3726055A4 (en) * | 2017-12-11 | 2020-11-11 | Qingdao Haier Co., Ltd. | Vacuum pump vent pipe silencer and refrigerator having same |
| US11255597B2 (en) | 2017-12-11 | 2022-02-22 | Qingdao Haier Co., Ltd. | Refrigerator |
| US11274875B2 (en) * | 2017-12-11 | 2022-03-15 | Qingdao Haier Co., Ltd. | Refrigerator |
| US11549499B2 (en) | 2017-12-11 | 2023-01-10 | Qingdao Haier Co., Ltd. | Cavity muffler and refrigerator |
| CN111118525A (en) * | 2020-02-16 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
| CN111118525B (en) * | 2020-02-16 | 2023-08-15 | 扬州乐道能源科技有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101117 |