CN206257069U - A kind of abdomen suction air compressor machine and its fan protection device - Google Patents
A kind of abdomen suction air compressor machine and its fan protection device Download PDFInfo
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- CN206257069U CN206257069U CN201621269029.0U CN201621269029U CN206257069U CN 206257069 U CN206257069 U CN 206257069U CN 201621269029 U CN201621269029 U CN 201621269029U CN 206257069 U CN206257069 U CN 206257069U
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Abstract
The utility model discloses a kind of abdomen suction air compressor machine and its fan protection device; its drip irrigation device is the compression assembly for including pedestal, the motor located at pedestal upper surface, the crankcase for being connected to motor and being connected to crankcase; the air inlet relative with crankcase is offered on pedestal; the lower surface of pedestal is provided with slide rail; be provided with slide rail to be slided and the blower fan relative with air inlet along slide rail, and the fan protection device for preventing blower fan frequent starting is electrically connected with blower fan.If blower fan is continuously open and close, by fan protection device so that the blower fan cannot be activated in the given time, so as to eliminate the hidden danger that blower fan burns by frequent starting to a certain extent.
Description
Technical field
The utility model is related to field of air compressor, more particularly to a kind of abdomen suction air compressor machine and its fan protection device.
Background technology
Air compressor machine is the device for converting mechanical energy into gas pressure energy, is the pressure generator of compressed air.
Air compressor machine traditionally generally comprises air accumulator, the handpiece of air compressor on air accumulator, the handpiece of air compressor bag
Include motor and be connected to the crankcase of motor end, crankcase is provided with the cylinder for compressed air, the output shaft of motor is inserted
Enter in crankcase and be connected with the piston in cylinder.
The air compressor machine its crankcase, motor and piston during working long hours can produce substantial amounts of heat, it is necessary to and
Shi Rangqi radiates out, can otherwise influence the service life of the parts such as motor and piston, therefore, it is typically employed in handpiece of air compressor
And setting blower fan is radiated between air accumulator, but during the use of blower fan, if because misoperation causes blower fan frequently to open
Dynamic, electric current when starting due to blower fan is larger, and burning for blower fan is easily caused in frequent starting, so as to influence the radiating of the air compressor machine
Effect.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of fan protection device, can
Blower fan is avoided frequently to be activated.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of fan protection device, including：
Current transformer, with input and output end, its input is coupled to the current supply circuit of blower fan；
Rectifier bridge, with input and output end, its input is coupled to the output end of current transformer；
Load resistance, its output end for being coupled to rectifier bridge；It is coupled with the load resistance frequent for preventing blower fan
The starting or stopping control circuit of keying, the starting or stopping control circuit includes：
Stopping detecting circuit is opened, it has input and output end, for detecting that the signal in the input of its input is located at
When rising edge or trailing edge, its output end exports corresponding detection signal；
Counting circuit, its input with input, output end and reset terminal, the counting circuit is coupled to start and stop inspection
The output end of slowdown monitoring circuit, and counted in response to detection signal and corresponding from the output of its output end after the full pre-determined number of meter
Count signal；
Time-delay reset circuit, its triggering end with triggering end and output end, the time-delay reset circuit is coupled to counting electricity
The output end on road, and enter line delay in response to count signal, corresponding delayed reset signal to counting is exported after Preset Time
The reset terminal of circuit；
On-off circuit, it has input and output end, and its input is coupled to counting circuit with count pick up signal, and
Corresponding switching signal is exported from its output end；
Relay, its normally-closed contact is serially connected on the current supply circuit of blower fan, and its coil is coupled to the output end of on-off circuit
To receive switching signal, and the break-make of its normally-closed contact is controlled in response to switching signal.
Preferably, the stopping detecting circuit that opens includes two block registers, the first not circuit, first and gate circuit, second
Not circuit, second and gate circuit and OR circuit；The input of first not circuit is coupled to rear stage register
Output end；The input of second not circuit is coupled to the output end of previous stage register；Described first and gate circuit
One of input be coupled to the output end of previous stage register, another input is coupled to the defeated of the first not circuit
Go out end；Described second output end that the second not circuit is coupled to one of output end of gate circuit, another input
It is coupled to the output end of rear stage register；Two inputs of the OR circuit are respectively coupled to first with gate circuit and the
Two and gate circuit.
Preferably, the counting circuit uses counter.
Preferably, the time-delay reset circuit is integrated using 555 timing chips.
Preferably, the on-off circuit includes：
3rd resistor, its one end is coupled to the output end of counting circuit；
4th resistance, its one end is coupled to the other end of 3rd resistor, its other end ground connection；
Second triode, its base stage is coupled on the tie point between 3rd resistor and the 4th resistance, its grounded emitter,
Its colelctor electrode connects voltage vcc after being coupled to the coil of relay；
Diode, its two ends inverse parallel is at the coil two ends of relay.
Another purpose of the present utility model is to provide a kind of abdomen suction air compressor machine, can avoid the abdomen suction air compressor machine
In blower fan be frequently activated.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of abdomen suction air compressor machine, including pedestal, the motor located at pedestal upper surface, the crankcase for being connected to motor,
And the compression assembly of crankcase is connected to, the air inlet relative with crankcase, the pedestal are offered on the pedestal
Lower surface be provided with slide rail, be provided with the slide rail can along slide rail slide and the blower fan relative with air inlet, on the blower fan
It is electrically connected with the fan protection device as being used to prevent blower fan frequent starting in above-mentioned scheme.
Preferably, the compression assembly includes the cylinder and crankcase cover that are installed on crankcase, the crankcase cover
Crankshaft cavity is formed between crankcase, the eccentric wheel assembly being connected with motor output shaft is provided with the crankshaft cavity, it is described
Piston and crank connecting link are provided with cylinder, the crank connecting link is connected on eccentric wheel assembly in being deep into crankshaft cavity.
In sum, the utility model having the beneficial effect that in contrast to prior art：
The abdomen suction air compressor machine can give when opening a stopping detecting circuit rising edge signal of input when starting blower fan, count electricity
Road accordingly counts once, and can be given when closing motor and open a stopping detecting circuit trailing edge signal of input, and counting circuit is mutually accrued
Number, if being counted as the pre-determined number of counting circuit twice, now, on-off circuit acts control relay so that the wind
Machine cannot be activated in the given time, so as to eliminate the hidden danger that blower fan burns by frequent starting to a certain extent.
Brief description of the drawings
Fig. 1 is the structural representation of the midfield suction air compressor machine of embodiment one；
Fig. 2 is the system block diagram of fan protection device in embodiment two；
Fig. 3 is the system block diagram of starting or stopping control circuit in embodiment two；
Fig. 4 is to open the circuit diagram of stopping detecting circuit in embodiment two；
Fig. 5 is the circuit diagram of counting circuit in embodiment two；
Fig. 6 is the circuit diagram of time-delay reset circuit in embodiment two；
Fig. 7 is the circuit diagram of the breaker in middle circuit of embodiment two.
Reference：1st, starting or stopping control circuit；101st, stopping detecting circuit is opened；102nd, counting circuit；103rd, time-delay reset electricity
Road；104th, on-off circuit；RL, load resistance；KM4, relay；2nd, pedestal；3rd, motor；4th, crankcase；5th, compression assembly；
501st, cylinder；502nd, crankcase cover；503rd, crankshaft cavity；504th, eccentric wheel assembly；505th, piston；506th, crank connecting link；6th, air intake
Mouthful；7th, slide rail；8th, blower fan；81st, housing；82nd, body；83rd, draw runner；9th, hood；10th, air inlet；11st, inlet channel；12nd, noise reduction
Filter assemblies；13rd, air inlet notch.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment one, as shown in Figure 1：
A kind of abdomen suction air compressor machine, including pedestal 2, the motor 3 located at the upper surface of pedestal 2, the crankcase that is connected to motor 3
Body 4 and the compression assembly 5 of crankcase 4 is connected to, compression assembly 5 includes the He of cylinder 501 being installed on crankcase 4
Crankcase cover 502, is formed with crankshaft cavity 503, crankshaft cavity 503 between crankcase cover 502 and crankcase 4 and is provided with and motor 3
The connected eccentric wheel assembly 504 of output shaft, piston 505 and crank connecting link 506 are provided with cylinder 501, and crank connecting link 506 is deep into
It is connected in crankshaft cavity 503 on eccentric wheel assembly 504.
Crankcase cover 502 is provided with inlet channel 11, and the air inlet notch interconnected with it is offered on inlet channel 11
13, hood 9 is also equipped with crankcase cover 502, the installing port 10 being adapted with inlet channel 11 is offered on hood 9, entering
Noise reduction filter assemblies 12 are installed, outside air passes sequentially through air intake notch 13, the filtering of inlet channel 11, noise reduction in gas passage 11
Component 12 is entered into above-mentioned crankshaft cavity 503.
The air inlet 6 relative with crankcase 4 is offered on pedestal 2, the lower surface of pedestal 2 is provided with slide rail 7, slide rail 7
Inside being provided with can slide and the blower fan 8 relative with air inlet 6 along slide rail 7.The setting of blower fan 8 can provide air-flow with to crankcase 4,
Motor 3 and compression assembly 5 are radiated.
Blower fan 8 includes housing 81, the body 82 in housing 81 and is adapted with slide rail 7 located at the both sides of housing 81
Draw runner 83, be correspondingly provided with screwed hole on draw runner 83 and slide rail 7, slided into blower fan 8 relative with air inlet 6 in slide rail 7
When, the upper screwed hole of slide rail 7 can be arranged in by bolt and be threaded on the screwed hole of draw runner 83 and be fixed with to blower fan 8.
When the dust stratification of blower fan 8 needs cleaning, by unclamping the bolt, blower fan 8 is skidded off from slide rail 7, so that wind
Machine 8 safeguards, overhauls, it is very convenient to clear up dust；Wherein, the pin J1 being connected with plug is provided with blower fan 8, is needing to detach
, it is necessary to first take out plug from its pin J1 to ensure that blower fan 8 can be extracted out smoothly during blower fan 8.
It is electrically connected with the protection device of blower fan 8 for preventing the frequent starting of blower fan 8 on blower fan 8, the protection device of blower fan 8 can be with
Pin electrical connection in blower fan 8.
Embodiment two, as shown in Figure 2：
A kind of fan protection device, including open-close on-off QS, fusible link FU1, current transformer, rectifier bridge, load resistance
RL and starting or stopping control circuit 1；Open-close on-off QS is connected between blower fan 8 and pin and is used to the start and stop for opening and closing blower fan 8.
Wherein, current transformer, with input and output end, its input is coupled to the current supply circuit of blower fan 8；Rectification
Bridge, with input and output end, its input is coupled to the output end of current transformer；Load resistance RL, it is coupled to whole
Flow the output end of bridge；The starting or stopping control circuit 1 for preventing blower fan 8 from frequently opening and closing is coupled with load resistance RL.
Load resistance RL by obtaining an electric current for stabilization after current transformer and rectifier bridge, by load resistance RL
Electric current be the electric current flowed through on the current supply circuit of blower fan 8, the present embodiment starting or stopping control circuit 1 is by detecting the electricity of load resistance RL
Stream replaces the electric current of the current supply circuit of direct detection blower fan 8；It is smaller due to flowing through the current value on load resistance RL, the start and stop of blower fan 8
When current supply circuit on the current value that flows through it is larger, this kind of mode can play the purpose of protection starting or stopping control circuit 1.
Wherein, AC/DC converters are also associated with the current supply circuit of blower fan 8, AC/DC converters are used to provide start and stop control
The voltage vcc of the stabilization of circuit processed 1.
As shown in figure 3, starting or stopping control circuit 1 includes：Open stopping detecting circuit 101, it has input and output end, with
In detection when the signal Vz of its input input is located at rising edge or trailing edge, its output end exports corresponding detection signal
Vq；
Counting circuit 102, it has input in, output end out and reset terminal rst, the input of the counting circuit 102
End is coupled to the output end for opening stopping detecting circuit 101, and is counted and after the full pre-determined number of meter in response to detection signal Vq
Corresponding count signal Vj is exported from its output end（Referring to Fig. 5）；
Time-delay reset circuit 103, it has triggering end and output end, and the triggering end of the time-delay reset circuit 103 is coupled to
The output end of counting circuit 102, and enter line delay in response to count signal Vj, corresponding time-delay reset is exported after Preset Time
Signal Vy to counting circuit 102 reset terminal rst；
On-off circuit 104, it has input and output end, and its input is coupled to counting circuit 102 with count pick up
Signal Vj, and export corresponding switching signal from its output end；
Relay KM4, its normally-closed contact KM4-1 is serially connected on the current supply circuit of blower fan 8, and its coil is coupled to on-off circuit
104 output end controls the break-make of its normally-closed contact KM4-1S in response to switching signal to receive switching signal.
As shown in figure 4, opening stopping detecting circuit 101 includes two block registers（U1、U2）, the first not circuit Y1, first with
Gate circuit F1, the second not circuit Y2, second and gate circuit F2 and OR circuit H1.
Two block registers（U1、U2）Clock end CP and reset terminal CL give corresponding clock signal clk by external chip
With reset signal rst, the present embodiment no longer specifically expansion explanation.
The input of the first not circuit F1 is coupled to the output end Q of rear stage register U2；Second not circuit F2's
Input is coupled to the output end Q of previous stage register U1；First be coupled to one of input of gate circuit Y1 it is previous
The output end Q of level register U1, another input is coupled to the output end of the first not circuit F1；Second with gate circuit Y2's
One of output end is coupled to the output end of the second not circuit F2, and another input is coupled to rear stage register U2's
Output end Q；Two inputs of OR circuit H1 are respectively coupled to first with gate circuit Y1 and second and gate circuit Y2.
The open-close on-off QS of blower fan 8 is pressed, blower fan 8 is opened, blower fan 8 obtains electric, and signal Vz is by original low transition
High level；Open-close on-off QS is pressed again, blower fan 8 is closed, and the dead electricity of blower fan 8, signal Vz is low level by original high level saltus step,
Therefore there is a rising edge and trailing edge.
Wherein, register U2 is used to latch incoming level when signal Vz rising edges arrive, and register U1 is latched and stayed
One saltus step of signal Vz（Trailing edge）Incoming level during arrival, if the two registers（U1、U2）The level for latching
Signal is different, and just explanation detects edge, i.e. rising edge or trailing edge.
Therefore, when open-close on-off QS unlatching blower fans 8 are pressed, there is rising edge in signal Vz, and first exports with gate circuit Y1
The rising edge detection signal Vs of high level, conversely, when open-close on-off QS closing blower fans 8 are pressed again, signal Vz has decline
Edge, second exports the trailing edge detection signal Vx of high level with gate circuit Y2；Rising edge detection signal Vs or trailing edge detection letter
After number Vx is input to OR circuit H1, OR circuit H1 can export the detection signal Vq of high level.
As shown in figure 5, counting circuit 102 uses counter.The input in of counting circuit 102 is coupled to start and stop detection electricity
Output end (the i.e. output end of OR circuit H1 on road 101）To receive detection signal Vq.Counting circuit 102 often receives once high
The detection signal Vq of level, then carry out a number, the present embodiment preferably meter it is full twice when, from its output end out outputs electricity high
Flat count signal Vj.
As shown in fig. 6, time-delay reset circuit 103 is integrated using 555 timing chips.Count signal Vj is input into NPN type three
The base stage of pole pipe Q1, turns it on, and then 555 timing chips are powered.During energization, voltage vcc charges to electric capacity C1, is formed and charged
Electric current, after the electric current flows through resistance R2, voltage, triggering of the voltage higher than the pin of 555 timing chip 2 is formed in the upper end of resistance R2
Level, therefore, 555 timing chips are not triggered.When electric capacity C1 is fully charged, charging current disappears so that the electricity of resistance R2 upper ends
Pressure disappears, so as to trigger 2 pin of 555 timing chips, 3 pin of 555 timing chips export the time delayed signal Vy of high level.The time delay
Signal Vy is delivered to the reset terminal rst of counting circuit 102, so that counting circuit 102 resets.
As shown in fig. 7, on-off circuit 104 includes：3rd resistor R3, its one end is coupled to the output end of counting circuit 102；
4th resistance R4, its one end is coupled to the other end of 3rd resistor R3, its other end ground connection；Second triode Q2, its base stage coupling
It is connected on the tie point between 3rd resistor R3 and the 4th resistance R4, its grounded emitter, its colelctor electrode is coupled to relay KM4
Coil after connect voltage vcc；Diode D1, its two ends inverse parallel is at the coil two ends of relay KM4.
The course of work：
When pressing open-close on-off QS unlatching blower fans 8, the detection signal Vq for opening the output high level of stopping detecting circuit 101 is extremely counted
Circuit 102, counting circuit 102 is counted once；When open-close on-off QS closing blower fans 8 are pressed again, the phase of stopping detecting circuit 101 is opened
The detection signal Vq of high level should be exported to counting circuit 102, counting circuit 102 is counted once again；The meter of counting circuit 102 full two
Number of times, on-off circuit 104 and time-delay reset circuit 103, on-off circuit are transmitted separately to by the count signal Vj for exporting high level
Triode Q2 receives high level in 104, and triode Q2 conductings, the coil of control relay KM4 obtains electric, disconnects its normally-closed contact
KM4-1 so that blower fan 8 is in off state and cannot be activated；
Also, the triode Q1 of time-delay reset circuit 103 receives the count signal Vj of high level, time-delay reset circuit
103 start working, and after Preset Time, time-delay reset circuit 103 promotes counting circuit 102 to reset so that counting circuit 102 is defeated
Go out low level count signal Vj, triode Q2 receives low level count signal, triode Q2 cut-offs, control relay
The coil losing electricity of KM4, its normally-closed contact KM4-1 closures so that blower fan 8 is in channel status and can be activated.
The above is only exemplary embodiment of the present utility model, not for limitation protection model of the present utility model
Enclose, protection domain of the present utility model is determined by appended claim.
Claims (7)
1. a kind of fan protection device, including：
Current transformer, with input and output end, its input is coupled to the current supply circuit of blower fan (8)；
Rectifier bridge, with input and output end, its input is coupled to the output end of current transformer；
Load resistance (RL), its output end for being coupled to rectifier bridge；It is characterized in that, be coupled with the load resistance (RL) for
The starting or stopping control circuit (1) for preventing blower fan (8) from frequently opening and closing, the starting or stopping control circuit (1) includes：
Stopping detecting circuit (101) is opened, it has input and output end, for detecting that the signal in the input of its input is located at
When rising edge or trailing edge, its output end exports corresponding detection signal；
Counting circuit (102), it has input, output end and reset terminal, and the input of the counting circuit (102) is coupled to
The output end of stopping detecting circuit (101) is opened, and is counted and after the full pre-determined number of meter from its output in response to detection signal
The corresponding count signal of end output；
Time-delay reset circuit (103), it has triggering end and output end, and the triggering end of the time-delay reset circuit (103) is coupled to
The output end of counting circuit (102), and enter line delay in response to count signal, corresponding time-delay reset is exported after Preset Time
Signal to counting circuit (102) reset terminal；
On-off circuit (104), it has input and output end, and its input is coupled to counting circuit (102) with count pick up
Signal, and export corresponding switching signal from its output end；
Relay (KM4), its normally-closed contact is serially connected on the current supply circuit of blower fan (8), and its coil is coupled to on-off circuit (104)
Output end to receive switching signal, and the break-make of its normally-closed contact is controlled in response to switching signal.
2. a kind of fan protection device according to claim 1, it is characterized in that, the stopping detecting circuit (101) that opens includes
Two block registers, the first not circuit, first and gate circuit, the second not circuit, second and gate circuit and OR circuit；Institute
The input for stating the first not circuit is coupled to the output end of rear stage register；The input coupling of second not circuit
In the output end of previous stage register；Described first is coupled to the defeated of previous stage register with one of input of gate circuit
Go out end, another input is coupled to the output end of the first not circuit；Described second with one of output end of gate circuit
The output end of the second not circuit is coupled to, another input is coupled to the output end of rear stage register；The OR gate electricity
Two inputs on road are respectively coupled to first with gate circuit and second and gate circuit.
3. a kind of fan protection device according to claim 1, it is characterized in that, the counting circuit (102) is using counting
Device.
4. a kind of fan protection device according to claim 1, it is characterized in that, the time-delay reset circuit (103) uses
555 timing chips are integrated.
5. a kind of fan protection device according to claim 1, it is characterized in that, the on-off circuit (104) includes：
3rd resistor, its one end is coupled to the output end of counting circuit (102)；
4th resistance, its one end is coupled to the other end of 3rd resistor, its other end ground connection；
Second triode, its base stage is coupled on the tie point between 3rd resistor and the 4th resistance, its grounded emitter, its collection
Electrode connects voltage vcc after being coupled to the coil of relay (KM4)；
Diode, its two ends inverse parallel is at the coil two ends of relay (KM4).
6. a kind of abdomen suction air compressor machine, including pedestal (2), the motor (3) located at pedestal (2) upper surface, motor (3) is connected to
Crankcase (4) and be connected to the compression assembly (5) of crankcase (4), it is characterized in that, offered on the pedestal (2) with
The relative air inlet (6) of crankcase (4), the lower surface of the pedestal (2) is provided with slide rail (7), the slide rail (7) and is provided with
Can be slided along slide rail (7) and the blower fan (8) relative with air inlet (6), be electrically connected with such as claim 1-5 on the blower fan (8)
Any described fan protection device for preventing blower fan (8) frequent starting.
7. a kind of abdomen suction air compressor machine according to claim 6, it is characterized in that, the compression assembly (5) is including being installed on
Cylinder (501) and crankcase cover (502) on crankcase (4), shape between the crankcase cover (502) and crankcase (4)
The eccentric wheel assembly (504) being connected with motor (3) output shaft, institute are provided with into having in crankshaft cavity (503), the crankshaft cavity (503)
State in cylinder (501) and be provided with piston (505) and crank connecting link (506), the crank connecting link (506) is deep into crankshaft cavity (503)
In be connected on eccentric wheel assembly (504).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621269029.0U CN206257069U (en) | 2016-11-23 | 2016-11-23 | A kind of abdomen suction air compressor machine and its fan protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621269029.0U CN206257069U (en) | 2016-11-23 | 2016-11-23 | A kind of abdomen suction air compressor machine and its fan protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206257069U true CN206257069U (en) | 2017-06-16 |
Family
ID=59027064
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621269029.0U Expired - Fee Related CN206257069U (en) | 2016-11-23 | 2016-11-23 | A kind of abdomen suction air compressor machine and its fan protection device |
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| CN (1) | CN206257069U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551930A (en) * | 2021-09-03 | 2021-10-26 | 贵州黔新哲米科技有限公司 | Electromechanical device fault detector |
-
2016
- 2016-11-23 CN CN201621269029.0U patent/CN206257069U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113551930A (en) * | 2021-09-03 | 2021-10-26 | 贵州黔新哲米科技有限公司 | Electromechanical device fault detector |
| CN113551930B (en) * | 2021-09-03 | 2022-08-02 | 贵州黔新哲米科技有限公司 | Electromechanical device fault detector |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20181123 |