CN204591646U - Barrier film electromagnetic type single pendulum automatic control vacuum pump - Google Patents
Barrier film electromagnetic type single pendulum automatic control vacuum pump Download PDFInfo
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- CN204591646U CN204591646U CN201520190147.1U CN201520190147U CN204591646U CN 204591646 U CN204591646 U CN 204591646U CN 201520190147 U CN201520190147 U CN 201520190147U CN 204591646 U CN204591646 U CN 204591646U
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Abstract
A kind of barrier film electromagnetic type single pendulum automatic control vacuum pump, comprise a housing, a coil brace and a rocking arm is provided with in housing, described coil brace is made up of a substrate and the first pillar, the second pillar and the 3rd pillar be disposed on this substrate, second pillar is wound with coil, and Ac connected by this coil; Described rocking arm is swung by its one end and is connected on housing, and the other end of rocking arm is provided with permanent magnet, and under static state, relative and interval, the end of permanent magnet and the first pillar is arranged; The side of described rocking arm is connected with a barrier film, and corresponding barrier film is provided with an air chamber, the air chamber of described its correspondence of diaphragm seal.Also be provided with a control circuit in described housing, this control circuit comprises power supply unit, control unit, driver element and monitoring cell; Described power supply unit comprises a rectification circuit, and described control unit comprises the singlechip chip that a model is STC11F02E.The utility model volume is little, noise is low and power consumption is little, and has automatic control function.
Description
Technical field
The utility model relates to vacuum pump, particularly relates to a kind of barrier film electromagnetic type single pendulum automatic control vacuum pump, can be applicable to the equipment in the field such as refrigerator, medical apparatus, instrument, device, for extracting or injecting air.
Background technique
Authorization Notice No. is that the Chinese utility model patent " inflating pump " of CN2282078Y discloses a kind of inflating pump, this inflating pump comprises a base, the base flat board of this base is provided with one group or two groups of air supply units, this air supply unit is by a coil base, two adjacent time difference property coils, one wind of inflating being combined with repellence magnet is clapped, one valve base and air pipe formed, the repellence of coil and relative position magnet is utilized to produce displacement and Ac alternately makes two coil magnetisation in turn, make to inflate wind bat generation to-and-fro motion, wind of inflating is clapped two ends and is connected epithelium action, by entering, to give vent to anger the folding of valve, closed action reaches compressed-air actuated object, the housing being provided with inlet air filtration unit with apical margin is again closed, and become and have in conjunction with clean matter, damping, waterproof, the novel inflating pump of several function such as full output.But the volume of above-mentioned inflating pump is large, noise is high, energy consumption is large and can not automatically control.So, how to provide the pump that a kind of volume is little, noise is low, power consumption is little and can automatically control just to become research topic of the present utility model.
Summary of the invention
The purpose of this utility model is to provide the barrier film electromagnetic type single pendulum automatic control vacuum pump that a kind of volume is little, noise is low, power consumption is little.
For achieving the above object, the technical solution adopted in the utility model is: a kind of barrier film electromagnetic type single pendulum automatic control vacuum pump, and a corresponding vacuum storehouse is arranged, to vacuumize described vacuum storehouse; Comprise a housing, in housing, be provided with a coil brace and a rocking arm, wherein:
Described coil brace is made up of a substrate and the first pillar, the second pillar and the 3rd pillar be disposed on this substrate, first pillar, the second pillar, the 3rd pillar and substrate form " E " shape structure jointly, described second pillar is between the first pillar and the 3rd pillar, second pillar is wound with coil, and Ac connected by this coil;
Described rocking arm is swung by its one end and is connected on housing; the other end of rocking arm is provided with a permanent magnet; under static state, and relative and interval, the end of described permanent magnet and the first pillar is arranged, the magnetic direction of permanent magnet inside is parallel with the magnetic direction in coil on described second pillar;
The side of described rocking arm is connected with a barrier film, and barrier film is arranged on the swinging plane of rocking arm, and corresponding barrier film is equipped with an air chamber, the air chamber of described its correspondence of diaphragm seal, air chamber offers air outlet hole and inlet hole, and air outlet hole is provided with outgassing nonreturn valve, and inlet hole is provided with breather check valve;
Also be provided with a control circuit in described housing, this control circuit comprises power supply unit, control unit, driver element and monitoring cell; Wherein, described power supply unit comprises a rectification circuit, the input end access 220V Ac of this rectification circuit, and output terminal provides 5V direct current, to power to described control unit, driver element and monitoring cell; Described control unit comprises the singlechip chip that a model is STC11F02E, and the pin 9 of this singlechip chip connects described driver element, and pin 17 is connected described monitoring cell with pin 19; Described driver element is electrically connected with described coil, with control coil switching electricity; Described monitoring cell comprises a pressure transducer and sensor circuit, and described pressure transducer is located in described vacuum storehouse, and pressure transducer has an interface and is electrically connected with described sensor circuit.
Related content in technique scheme is explained as follows:
1, in such scheme, described control circuit also comprises a communication interface, and this communication interface is for connecting refrigerator mainboard, and realize the external world's order of input refrigerator, namely artificial pressure vacuumizes.
2, in such scheme, also comprise a thermal switch, this thermal switch is serially connected with on coil; This thermal switch plays physical protection, and when after coil works long hours, temperature exceedes safety range, thermal switch will auto power off, when coil temperature drops to safety range, and this thermal switch just turn-on power again.Can prevent coil from burning, ensure Security.
3, in such scheme, the pin 1 of described singlechip chip connects described 5V direct current, and be connected in series one first electric capacity, ground connection after one first resistance is connected in series between pin 1 with pin 10, pin 4 is connected with a clock crystal oscillation circuit with pin 5, pin 20 connects described 5V direct current, and this pin 20 also connects ground connection after one second electric capacity.
4, in such scheme, described driver element has an interface, and comprises one second resistance, the optical coupler be made up of a light emitting diode and bidirectional trigger diode, one the 3rd resistance, a bidirectional triode thyristor, one the 4th resistance and one the 3rd electric capacity; 5V direct current described in one termination of described second resistance, the anode of light emitting diode described in another termination; The negative electrode of described light emitting diode connects the pin 9 of described singlechip chip; First pole of described bidirectional trigger diode connects the control pole of described bidirectional triode thyristor, and the second pole connects the first end of described 3rd resistance; The first end of the 4th resistance described in second termination of described 3rd resistance, the pin 3 of driver element interface described in the second termination of described 4th resistance; First pole of described bidirectional triode thyristor connects the first end of described 3rd electric capacity, and the second pole connects the pin 3 of described driver element interface; The first end of the second termination the 4th resistance of described 3rd electric capacity; 220V Ac described in the pin 1 of described driver element interface and the first termination of described 3rd electric capacity.
5, in such scheme, the sensor circuit of described monitoring cell comprises a LM1117 low difference voltage regulator, one the 4th electric capacity, one the 5th electric capacity, one the 5th resistance, one the 6th resistance, one first reference diode and one second reference diode; Described pressure sensor interface has four pins, and pin 1 connects the pin 17 of described singlechip chip, pin 2 ground connection, and pin 3 connects the pin 2 of described LM1117 low difference voltage regulator, and pin 4 connects the pin 19 of described singlechip chip; The plus earth of described first reference diode, negative electrode connects the pin 1 of described pressure sensor interface; One end of described 5th resistance connects the pin 1 of the interface of described pressure transducer, 5V direct current described in another termination; The plus earth of described second reference diode, negative electrode connects the pin 4 of described pressure sensor interface; One end of described 6th resistance connects the pin 4 of described pressure sensor interface, 5V direct current described in another termination; The first end ground connection of described 4th electric capacity, the second end connects the pin 3 of described LM1117 low difference voltage regulator, and this pin 3 also accesses described 5V direct current; The first end ground connection of described 5th electric capacity, the second end connects the pin 2 of described LM1117 low difference voltage regulator.
6, in such scheme, described rocking arm adopts non-magnet material, as plastics, stainless steel etc.
7, in such scheme, described rocking arm is located on described housing by elastic component.
8, in such scheme, described elastic component is rubber, silica gel, spring or shell fragment etc.
9, in such scheme, the outer rim of described barrier film is fixedly installed relative to air chamber, and the middle part of barrier film is connected with rocking arm.
10, in such scheme, described barrier film is diaphragm of rubber.
11, in such scheme, described coil brace is iron core, and coil is conductive coil, according to electromagnetic principle, is wound on energising in the coil outside iron core and can produces magnetic field in core interior.
Working principle of the present utility model: when to coil electricity, in coil, the change of current direction causes the change of magnetic direction on coil internal magnetic field and the first pillar, the second pillar and the 3rd pillar, according to the principle of there is a natural attraction between the sexes two like magnetic poles repel each other, on the first pillar, the second pillar and the 3rd pillar magnetic field effect under; magnetic force suffered by the permanent magnet on rocking arm drives rocking arm to swing; rocking arm drives barrier film to do piston movement relative to air chamber, thus realizes bleeding and inflating.
Have the following advantages compared to prior art the utility model:
1, prior art uses twin coil or motor piston type eccentric stiffener, and volume is large, and energy consumption is high, and the utility model uses unicoil electromagnetic oscillations diaphragm pump to save space and energy consumption is lower;
2, the wind bat of inflating of prior art seems straight line motion, the shock motion of undulate time in fact, and moving line is long and vibrations are large, and the route that rocking arm of the present utility model swings is short and low to spatial requirement, reduces and shake and noise while reduced volume.
3, the air chamber of prior art be located at coil and inflate wind clap outside, belong to external hanging type, the air chamber of external hanging type, owing to only adopting a coil and coil brace, for space vacateed by air chamber, changes into built-in, greatly reduces volume by the utility model.
4, the utility model has set up control circuit, stops therefore, it is possible to arranging arbitrarily in the vacuum ranges that can reach or starts, and is provided with the air pressure that a pressure transducer comes in Real-Time Monitoring vacuum storehouse, to bleed when automatically starting during vacuum degree deficiency in storehouse.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment;
Accompanying drawing 2 is the structural representation of control circuit in the utility model embodiment.
In above accompanying drawing: 1, housing; 2, substrate; 3, the first pillar; 4, the second pillar; 5, the 3rd pillar; 6, coil; 7, rocking arm; 8, rocker stand; 9, permanent magnet; 10, vacuum storehouse; 11, suction port; 12, air outlet; 13, breather check valve; 14, outgassing nonreturn valve; 15, barrier film; 16, power interface; 17, pressure transducer; 18, pressure sensor interface; 19, driver element interface; 20, communication interface; 21, thermal switch; U1, singlechip chip; U2, optical coupler; U3, low difference voltage regulator; R1, the first resistance; R2, the second resistance; R3, the 3rd resistance; R4, the 4th resistance; R5, the 5th resistance; R6, the 6th resistance; C1, the first electric capacity; C2, the second electric capacity; C3, the 3rd electric capacity; C4, the 4th electric capacity; C5, the 5th electric capacity; Q1, bidirectional triode thyristor; D1, the first reference diode; D2, the second reference diode.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment: shown in accompanying drawing 1, a kind of barrier film electromagnetic type single pendulum automatic control vacuum pump, a corresponding vacuum storehouse 10 is arranged, to vacuumize described vacuum storehouse 10;
Comprise a housing 1, in housing 1, be provided with a coil brace and a rocking arm 7, wherein:
Described coil brace is made up of a substrate 2 and the first pillar 3, second pillar 4 be disposed on this substrate 2 and the 3rd pillar 5, first pillar 3, second pillar 4, the 3rd pillar 5 and substrate 2 form " E " shape structure jointly, described second pillar 4 is between the first pillar 3 and the 3rd pillar 5, second pillar 4 is wound with coil 6, and Ac connected by this coil 6.
Described rocking arm 7 is swung by its one end and is connected on housing 1; the other end of rocking arm 7 is provided with a permanent magnet 9; under static state; relative and interval, the end of described permanent magnet 9 and the first pillar 3 is arranged, the magnetic direction of permanent magnet 9 inside is parallel with the magnetic direction in coil 6 on described second pillar 4.
The side of described rocking arm 7 is connected with a barrier film 15, barrier film 15 is arranged on the swinging plane of rocking arm 7, corresponding barrier film 15 is provided with an air chamber, described barrier film 15 seals the air chamber of its correspondence, air chamber offers air outlet hole 12 and inlet hole 11, air outlet hole 12 is provided with outgassing nonreturn valve 14, and inlet hole 11 is provided with breather check valve 13.
Also be provided with a control circuit in described housing, as shown in Figure 2, this control circuit comprise power supply unit (see Fig. 2 a), control unit (see Fig. 2 b), driver element (see Fig. 2 c) and monitoring cell (see Fig. 2 d);
Wherein, as Fig. 2 a, described power supply unit comprises a rectification circuit and power interface 16, the input end access 220V Ac of this rectification circuit, and output terminal provides 5V direct current, to power to described control unit, driver element and monitoring cell; Because this rectification circuit is conventional design, therefore do not repeat;
As Fig. 2 b, described control unit comprises the singlechip chip U1 that a model is STC11F02E, and the pin 9 of this singlechip chip U1 connects described driver element, and pin 17 is connected described monitoring cell with pin 19; The pin 1 of described singlechip chip connects described 5V direct current, and be connected in series one first electric capacity C1, ground connection after one first resistance R1 is connected in series between pin 1 with pin 10, pin 4 is connected with a clock crystal oscillation circuit with pin 5, pin 20 connects described 5V direct current, and this pin 20 also connects ground connection after one second electric capacity C2.
As Fig. 2 c, described driver element is electrically connected with described coil 6, with control coil 6 switching electricity; Described driver element has an interface 19, and comprises one second resistance R2, the optical coupler U2 be made up of a light emitting diode and bidirectional trigger diode, one the 3rd resistance R3, a bidirectional triode thyristor Q1, one the 4th resistance R4 and the 3rd electric capacity C3; 5V direct current described in one termination of described second resistance R2, the anode of light emitting diode described in another termination; The negative electrode of described light emitting diode connects the pin 9 of described singlechip chip U1; First pole of described bidirectional trigger diode connects the control pole of described bidirectional triode thyristor Q1, and the second pole connects the first end of described 3rd resistance R3; The first end of the 4th resistance R4 described in second termination of described 3rd resistance R3, the pin 3 of driver element interface 19 described in second termination of described 4th resistance R4; First pole of described bidirectional triode thyristor Q1 connects the first end of described 3rd electric capacity C3, and the second pole connects the pin 3 of described driver element interface 19; The first end of the second termination the 4th resistance R4 of described 3rd electric capacity C3; 220V Ac described in the pin 1 of described driver element interface 19 and first termination of described 3rd electric capacity C3.
As Fig. 2 d, described monitoring cell comprises pressure transducer 17 and a sensor circuit, and described pressure transducer 17 is located in described vacuum storehouse 10, and pressure transducer 17 has an interface 18 and is electrically connected with described sensor circuit.The sensor circuit of described monitoring cell comprises a LM1117 low difference voltage regulator U3, one the 4th electric capacity C4, one the 5th electric capacity C5, one the 5th resistance R5, one the 6th resistance R6, one first reference diode D1 and one second reference diode D2; Described pressure sensor interface 18 has four pins, and pin 1 connects the pin 17 of described singlechip chip U1, pin 2 ground connection, and pin 3 connects the pin 2 of described LM1117 low difference voltage regulator U3, and pin 4 connects the pin 19 of described singlechip chip U1; The plus earth of described first reference diode D1, negative electrode connects the pin 1 of described pressure sensor interface 18; One end of described 5th resistance R5 connects the pin 1 of described pressure sensor interface 18,5V direct current described in another termination; The plus earth of described second reference diode D2, negative electrode connects the pin 4 of described pressure sensor interface 18; One end of described 6th resistance R6 connects the pin 4 of described pressure sensor interface 18,5V direct current described in another termination; The first end ground connection of described 4th electric capacity C4, the second end connects the pin 3 of described LM1117 low difference voltage regulator U3, and this pin 3 also accesses described 5V direct current; The first end ground connection of described 5th electric capacity C5, the second end connects the pin 2 of described LM1117 low difference voltage regulator U3.(this LM1117 low difference voltage regulator transformation exports 3.3V voltage for pressure transducer)
Wherein, as shown in Figure 1, described control circuit also comprises a communication interface 20, and this communication interface 20 is for connecting refrigerator mainboard, and realize the external world's order of input refrigerator, namely artificial pressure vacuumizes.Also comprise a thermal switch 21, this thermal switch 21 is serially connected with on coil 6; This thermal switch 21 plays physical protection, and when after coil 6 works long hours, temperature exceedes safety range, thermal switch 21 will auto power off, when coil 6 temperature drops to safety range, and this thermal switch 21 just turn-on power again.Can prevent coil 6 from burning, ensure Security.
Wherein, described rocking arm 7 is located on described housing 1 by rocker stand 8.Described rocker stand 8 is rubber, silica gel, spring or shell fragment etc.The outer rim of described barrier film 15 is fixedly installed relative to air chamber, and the middle part of barrier film 15 is connected with rocking arm 7.Described barrier film 15 is diaphragm of rubber.Indirect current in described coil 6.
Working principle of the present utility model: when to coil electricity, in coil, the change of current direction causes the change of magnetic direction on coil internal magnetic field and the first pillar, the second pillar and the 3rd pillar, according to the principle of there is a natural attraction between the sexes two like magnetic poles repel each other, on the first pillar, the second pillar and the 3rd pillar magnetic field effect under; magnetic force suffered by the permanent magnet on rocking arm drives rocking arm to swing; rocking arm drives barrier film to do piston movement relative to air chamber, thus realizes bleeding and inflating.
Have the following advantages compared to prior art the utility model:
1, prior art uses twin coil or motor piston type eccentric stiffener, and volume is large, and energy consumption is high, and the utility model uses unicoil electromagnetic oscillations diaphragm pump to save space and energy consumption is lower;
2, the wind bat of inflating of prior art seems straight line motion, the shock motion of undulate time in fact, and moving line is long and vibrations are large, and the route that rocking arm of the present utility model swings is short and low to spatial requirement, reduces and shake and noise while reduced volume.
3, the air chamber of prior art be located at coil and inflate wind clap outside, belong to external hanging type, the air chamber of external hanging type, owing to only adopting a coil and coil brace, for space vacateed by air chamber, changes into built-in, greatly reduces volume by the utility model.
4, the utility model has set up control circuit, stops therefore, it is possible to arranging arbitrarily in the vacuum ranges that can reach or starts, and is provided with the air pressure that a pressure transducer comes in Real-Time Monitoring vacuum storehouse, to bleed when automatically starting during vacuum degree deficiency in storehouse.
In addition, the utility model adopts the elastic material with vibration damping as the barrier film of pump and rocker stand, effectively reduces noise and vibration.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (10)
1. a barrier film electromagnetic type single pendulum automatic control vacuum pump, a corresponding vacuum storehouse is arranged, to vacuumize described vacuum storehouse; It is characterized in that: comprise a housing, in housing, be provided with a coil brace and a rocking arm, wherein:
Described coil brace is made up of a substrate and the first pillar, the second pillar and the 3rd pillar be disposed on this substrate, first pillar, the second pillar, the 3rd pillar and substrate form " E " shape structure jointly, described second pillar is between the first pillar and the 3rd pillar, second pillar is wound with coil, and Ac connected by this coil;
Described rocking arm is swung by its one end and is connected on housing; the other end of rocking arm is provided with a permanent magnet; under static state, and relative and interval, the end of described permanent magnet and the first pillar is arranged, the magnetic direction of permanent magnet inside is parallel with the magnetic direction in coil on described second pillar;
The side of described rocking arm is connected with a barrier film, and barrier film is arranged on the swinging plane of rocking arm, and corresponding barrier film is equipped with an air chamber, the air chamber of described its correspondence of diaphragm seal, air chamber offers air outlet hole and inlet hole, and air outlet hole is provided with outgassing nonreturn valve, and inlet hole is provided with breather check valve;
Also be provided with a control circuit in described housing, this control circuit comprises power supply unit, control unit, driver element and monitoring cell; Wherein, described power supply unit comprises a rectification circuit, the input end access 220V Ac of this rectification circuit, and output terminal provides 5V direct current, to power to described control unit, driver element and monitoring cell; Described control unit comprises the singlechip chip that a model is STC11F02E, and the pin 9 of this singlechip chip connects described driver element, and pin 17 is connected described monitoring cell with pin 19; Described driver element is electrically connected with described coil, with control coil switching electricity; Described monitoring cell comprises a pressure transducer and sensor circuit, and described pressure transducer is located in described vacuum storehouse, and pressure transducer has an interface and is electrically connected with described sensor circuit.
2. vacuum pump according to claim 1, is characterized in that: described control circuit also comprises a communication interface.
3. vacuum pump according to claim 1, is characterized in that: also comprise a thermal switch, and this thermal switch is serially connected with on coil.
4. vacuum pump according to claim 1, it is characterized in that: the pin 1 of described singlechip chip connects described 5V direct current, and be connected in series one first electric capacity, ground connection after one first resistance is connected in series between pin 1 with pin 10, pin 4 is connected with a clock crystal oscillation circuit with pin 5, pin 20 connects described 5V direct current, and this pin 20 also connects ground connection after one second electric capacity.
5. vacuum pump according to claim 1, it is characterized in that: described driver element has an interface, and comprise one second resistance, the optical coupler be made up of a light emitting diode and bidirectional trigger diode, one the 3rd resistance, a bidirectional triode thyristor, one the 4th resistance and one the 3rd electric capacity; 5V direct current described in one termination of described second resistance, the anode of light emitting diode described in another termination; The negative electrode of described light emitting diode connects the pin 9 of described singlechip chip; First pole of described bidirectional trigger diode connects the control pole of described bidirectional triode thyristor, and the second pole connects the first end of described 3rd resistance; The first end of the 4th resistance described in second termination of described 3rd resistance, the pin 3 of driver element interface described in the second termination of described 4th resistance; First pole of described bidirectional triode thyristor connects the first end of described 3rd electric capacity, and the second pole connects the pin 3 of described driver element interface; The first end of the second termination the 4th resistance of described 3rd electric capacity; 220V Ac described in the pin 1 of described driver element interface and the first termination of described 3rd electric capacity.
6. vacuum pump according to claim 1, is characterized in that: the sensor circuit of described monitoring cell comprises a LM1117 low difference voltage regulator, one the 4th electric capacity, one the 5th electric capacity, one the 5th resistance, one the 6th resistance, one first reference diode and one second reference diode; Described pressure sensor interface has four pins, and pin 1 connects the pin 17 of described singlechip chip, pin 2 ground connection, and pin 3 connects the pin 2 of described LM1117 low difference voltage regulator, and pin 4 connects the pin 19 of described singlechip chip; The plus earth of described first reference diode, negative electrode connects the pin 1 of described pressure sensor interface; One end of described 5th resistance connects the pin 1 of the interface of described pressure transducer, 5V direct current described in another termination; The plus earth of described second reference diode, negative electrode connects the pin 4 of described pressure sensor interface; One end of described 6th resistance connects the pin 4 of described pressure sensor interface, 5V direct current described in another termination; The first end ground connection of described 4th electric capacity, the second end connects the pin 3 of described LM1117 low difference voltage regulator, and this pin 3 also accesses described 5V direct current; The first end ground connection of described 5th electric capacity, the second end connects the pin 2 of described LM1117 low difference voltage regulator.
7. vacuum pump according to claim 1, is characterized in that: the outer rim of described barrier film is fixedly installed relative to air chamber, and the middle part of barrier film is connected with rocking arm.
8. vacuum pump according to claim 1, is characterized in that: described rocking arm is located on described housing by elastic component.
9. vacuum pump according to claim 1, is characterized in that: described barrier film is diaphragm of rubber.
10. vacuum pump according to claim 1, is characterized in that: connected in series or in parallel between described air chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190147.1U CN204591646U (en) | 2015-03-31 | 2015-03-31 | Barrier film electromagnetic type single pendulum automatic control vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520190147.1U CN204591646U (en) | 2015-03-31 | 2015-03-31 | Barrier film electromagnetic type single pendulum automatic control vacuum pump |
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| CN204591646U true CN204591646U (en) | 2015-08-26 |
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| CN201520190147.1U Expired - Fee Related CN204591646U (en) | 2015-03-31 | 2015-03-31 | Barrier film electromagnetic type single pendulum automatic control vacuum pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268819A (en) * | 2017-06-05 | 2017-10-20 | 山东大学 | A kind of multidimensional resistance dissipative damping device |
| CN108019334A (en) * | 2018-01-25 | 2018-05-11 | 佛山鸿沣医疗科技有限公司 | Double-voltage air pump driving circuit and pump body thereof |
-
2015
- 2015-03-31 CN CN201520190147.1U patent/CN204591646U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268819A (en) * | 2017-06-05 | 2017-10-20 | 山东大学 | A kind of multidimensional resistance dissipative damping device |
| CN107268819B (en) * | 2017-06-05 | 2023-08-18 | 山东大学 | Multidimensional resistance energy consumption vibration damper |
| CN108019334A (en) * | 2018-01-25 | 2018-05-11 | 佛山鸿沣医疗科技有限公司 | Double-voltage air pump driving circuit and pump body thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150826 |
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| CF01 | Termination of patent right due to non-payment of annual fee |