CN206234072U - A kind of electric air compressor - Google Patents
A kind of electric air compressor Download PDFInfo
- Publication number
- CN206234072U CN206234072U CN201621323414.9U CN201621323414U CN206234072U CN 206234072 U CN206234072 U CN 206234072U CN 201621323414 U CN201621323414 U CN 201621323414U CN 206234072 U CN206234072 U CN 206234072U
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- compressor
- cooler
- motor
- cooling fan
- flow channel
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Abstract
The utility model is related to Compressor Technology field, more particularly to a kind of electric air compressor, it includes motor and compressor, the compressor includes housing and the rotary part in housing, the output shaft of the motor is coaxially connected with the rotary part, it is characterized in that, cooler and cooling fan are also set between the motor and compressor, the cooling fan is fixed on the motor output shaft, the cooler includes input and output end, outflow of lubrication oil passage and flow channel are correspondingly provided with the housing, the input and output end are connected with outflow of lubrication oil passage and flow channel respectively, oil temperature control valve is additionally provided with lubricating oil flow channel.Beneficial effect is to stop cooler in compressor start, and can start cooler work in compressor overtemperature, it is to avoid steam damages compressor, and then ensure that compressor less trouble and long-life.
Description
Technical field
The utility model is related to Compressor Technology field, more particularly to a kind of electric air compressor.
Background technology
Air compressor is typically provided with lubricating oil bunker in housing bottom, lubricates and reduces temperature to be provided to rotary part
Degree.But air can produce steam upon compression, the heat produced by high speed rotation in compressor normally runs is led to steam
Overcompression machine output gas leads out.If compressor stream time is few, shortage of heat works as vapour concentration to take away steam
When gathering larger, deterioration of lubricant, commonly referred to emulsion can be promoted.After emulsification of lubricant, compressor is not only influenceed
Operating efficiency, serious meeting causes compressor premature breakdown.And for compressor in itself for, prevent that built-in temperature is too high to be also
One important Con trolling index.
When being often operated in intermittent condition for being similar to vehicular compressed machine, wish to be rapidly heated during startup, with profit
Taken out of in steam；When work a period of time temperature can then be raised rapidly, need again to cooling compressor, to control temperature in setting
Scope, is otherwise equally unfavorable for compressor operating.If air compressor can not be operated within the scope of rationally controllable temperature, no
By being that, because temperature is too low or operating temperature is too high, finally can all cause air compressor critical failure.Patent No.
The Chinese patent of 201610305357.X, discloses a kind of electric air compressor of controllable heat dissipation, and it is by after motor
Portion or compressor periphery set up fan to control compressor operating temperature, but this structure due to being dropped in hull outside by wind-force
Temperature, not only controls delayed big, efficiency low, and machine volume is big.
In addition, also have equipped with cooler electric air compressor, once air compressor machine start, cooler also start immediately into
Row cooling.Air compressor is caused to heat up slow, so as to cause the steam contained by air to be formed because being influenceed by temperature and pressure
Moisture condensation, causes the generation of emulsification problem after being combined with lubricating oil, each motion rotary part locking because of insufficient lubrication, air
Compressor breaks down and can not work.
Utility model content
The utility model is directed to above-mentioned the deficiencies in the prior art, there is provided one kind can efficiently control compressor temperature, prevents profit
The electric air compressor of lubricating oil emulsification.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：A kind of electric air compressor, including it is electronic
Machine and compressor, the compressor include housing and the rotary part in housing, the output shaft of the motor with it is described
Rotary part is coaxially connected, it is characterised in that cooler and cooling fan are also set between the motor and compressor,
The cooling fan is fixed on the motor output shaft, and the cooler includes input and output end, on the housing
Be correspondingly provided with outflow of lubrication oil passage and flow channel, the input and output end respectively with outflow of lubrication oil passage and inflow
Passage is connected, and oil temperature control valve is additionally provided with lubricating oil flow channel.
The utility model is so work, in previous work after air compressor startup, due to compressor inside temperature
Degree is still low, and oil temperature control valve closes the circulation canal of cooler, prevents cooler from working, so that air compressor inside temperature
Degree is quick to be raised, and after oil temperature is increased to uniform temperature, oil temperature control valve is automatically opened up, and cooler circulation canal is open-minded, lubrication
Oil enters cooler and sprays into compressor again after being cooled down through cooler, to control compressor temperature.
The beneficial effects of the utility model are：If lubricating oil temperature is than relatively low after compressor start, then cooler is not
Work, promotes compressor to be rapidly heated, to take away the steam in air；And when compressed air temperature is increased to preset temperature,
The requirement that is rapidly heated when cooler meets startup to control oil temperature, both is then opened, compressor operating temperature is also controlled, entered
And avoid emulsification of lubricant and prevent compressor overtemperature from working, final result is reduction of compressor fault rate, improves pressure
The contracting machine life-span.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, the cooler is annular coil arrangement, and the cooling fan is inside the cooler.
Beneficial effect using above-mentioned further scheme is that it is more preferable that annular coil arrangement dissipates temp effect under fan effect.
Further, the cooler is plank frame, and the cooling fan is arranged on the inside or rear portion of cooler.
Beneficial effect using above-mentioned further scheme is that plate type heat exchanger area of dissipation is big, is also beneficial to start radiating.
Further, also including step-down control device, the step-down control device includes being located at the compressor compresses air
The Pressure Control Unit and relief valve of outlet, the Pressure Control Unit are used to control compressor to exceed low pressure limit in air accumulator
When, maintain compressor operating on low voltage.
Under same state of temperature, the pressure of compressed air is lower, and the content of compressed air saturation water is higher.General car
Start and stop are controlled by reservoir pressure size with compressor, is stopped when reservoir pressure is up to 0.9 MPa, when being reduced to 0.75 MPa
Start working.General downtime work period is up to tens seconds, compressor internal pressure reduction during this, at a temperature of
Drop, is easily caused moisture accumulations, and this also easily causes compressor damage.
Beneficial effect using above-mentioned further scheme is prescribed a time limit when reservoir pressure reaches height, and control relief valve is opened,
Keep compressor to continue to operating on low voltage, such as 0.6 MPa, can so discharge steam, and start in next cycle period
When can quickly set up reservoir pressure.Due to this kind of compressor horsepower very little, although can have power consumption when maintaining, but relatively
It is negligible power consumption in compressor fault and the parcel received that ensures safety is reduced.
Brief description of the drawings
Fig. 1 is structure principle chart of the present utility model；
Fig. 2 is the A-A direction views of Fig. 1；
Fig. 3 is cooler construction schematic diagram；
Fig. 4 is pressure feed system structure diagram；
Fig. 5 is compressor and cooler oil circuit connection diagram (stopping recurrent state)；
Fig. 6 is compressor and cooler oil circuit connection diagram (recurrent state).
In Fig. 1 to Fig. 6,1, motor；2nd, cooling fan；3rd, cooler；3-1, radiating tube；3-2, input；3-3、
Output end；4th, compressor；4-1, flow pass；4-2, flow channel；Oil inlet passage in 4-3, compressor；5th, step-down control dress
Put；6th, rotary part；7th, bell jar；8th, oil temperature control valve；8-1, inner passage；9th, accumulator；9-1, outlet pipe；10th, pressure
Control unit；11st, relief valve.
Specific embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
As shown in Fig. 1 to Fig. 3, a kind of electric air compressor, including motor 1 and compressor 4, the compressor 4 is wrapped
Housing and the rotary part in housing 6 are included, the output shaft of the motor 1 is coaxially connected with the rotary part 6, in institute
State and be also set between motor 1 and compressor 4 cooler 3 and cooling fan 2, the cooling fan 2 is fixed on described electronic
On the output shaft of machine 1, the cooler 3 includes input 3-2 and output end 3-3, and outflow of lubrication oil is correspondingly provided with the housing
Passage 4-1 and flow channel 4-2, the input 3-2 and output end 3-3 are logical with outflow of lubrication oil passage 4-1 and inflow respectively
Road 4-2 is connected, and oil temperature control valve 8 is additionally provided with lubricating oil flow channel 4-2.Between the cooler 3 and motor 1 also
It is provided with bell jar 7.
The cooler 3 is annular coil arrangement, and shown coil pipe is formed by radiating tube 3-1 rings folding.The cooling fan 2 sets
Inside the cooler 3.
The cooler 3 is plank frame, and the cooling fan 2 is arranged on the inside or rear portion of cooler 3.
As shown in figure 5, being the compressor and cooler oil circuit connection diagram when stopping circulation, now oil temperature control valve 8
Close circulation canal, lubricating oil can only enter the compression chamber of compressor 4 (such as in figure by oil temperature control valve inner passage 8-1
Shown in arrow).
As shown in fig. 6, be compressor and cooler oil circuit connection diagram when cooler 3 participates in circulating, when temperature liter
Gao Shi, oil temperature control valve 8 opens the circulation canal of cooler while closing therein passage 8-1, lubricating oil can only pass through
Compression chamber (as shown by arrows in FIG.) is entered by compressor oil inlet passage 4-3 again by after cooler 3.
As shown in figure 4, also including step-down control device 5, the step-down control device 5 includes being pressed located at the compressor 4
The Pressure Control Unit 10 and relief valve 11 of contracting air outlet slit, the Pressure Control Unit 10 are used to control compressor 4 in gas storage
When tank 9 exceedes low pressure limit, compressor operating on low voltage is maintained.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all in this practicality
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (4)
1. a kind of electric air compressor, including motor and compressor, the compressor include housing and in housing
Rotary part, the output shaft of the motor is coaxially connected with the rotary part, it is characterised in that in the motor and pressure
Cooler and cooling fan are also set between contracting machine, the cooling fan is fixed on the motor output shaft, described cold
But device includes input and output end, and outflow of lubrication oil passage and flow channel, the input are correspondingly provided with the housing
It is connected with outflow of lubrication oil passage and flow channel respectively with output end, Oil-temperature control is additionally provided with lubricating oil flow channel
Valve.
2. electric air compressor according to claim 1, it is characterised in that the cooler is annular coil arrangement,
The cooling fan is inside the cooler.
3. electric air compressor according to claim 1, it is characterised in that the cooler is plank frame, described
Cooling fan is arranged on the inside or rear portion of cooler.
4. the electric air compressor according to any one of claims 1 to 3, it is characterised in that also including step-down control device,
The step-down control device includes the Pressure Control Unit and relief valve located at the compressor compresses air outlet slit, the pressure
Control unit is used to control compressor when air accumulator exceedes low pressure limit, maintains compressor operating on low voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621323414.9U CN206234072U (en) | 2016-12-05 | 2016-12-05 | A kind of electric air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621323414.9U CN206234072U (en) | 2016-12-05 | 2016-12-05 | A kind of electric air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234072U true CN206234072U (en) | 2017-06-09 |
Family
ID=58979002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621323414.9U Active CN206234072U (en) | 2016-12-05 | 2016-12-05 | A kind of electric air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925169A (en) * | 2019-12-31 | 2020-03-27 | 浙江万安其弗汽车零部件有限公司 | Electric air compressor comprising cooling assembly |
-
2016
- 2016-12-05 CN CN201621323414.9U patent/CN206234072U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925169A (en) * | 2019-12-31 | 2020-03-27 | 浙江万安其弗汽车零部件有限公司 | Electric air compressor comprising cooling assembly |
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