CN107550483B - Air pump and electronic sphygmomanometer - Google Patents
Air pump and electronic sphygmomanometer Download PDFInfo
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- CN107550483B CN107550483B CN201710992757.7A CN201710992757A CN107550483B CN 107550483 B CN107550483 B CN 107550483B CN 201710992757 A CN201710992757 A CN 201710992757A CN 107550483 B CN107550483 B CN 107550483B
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- air pump
- air bag
- coil winding
- permanent magnet
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- 238000004804 winding Methods 0.000 claims abstract description 52
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 8
- 230000008602 contraction Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 230000036772 blood pressure Effects 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000009471 action Effects 0.000 abstract description 6
- 230000000737 periodic effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000036541 health Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Abstract
The invention discloses an air pump which is used for a sphygmomanometer and comprises an air bag and an air tap communicated with the air bag, wherein the air bag is also connected with an electromagnetic driver, the electromagnetic driver comprises a coil winding and a permanent magnet block, and the air bag is driven to deform, suck or extrude air to realize air pressure output through electromagnetic induction movement between the coil winding and the permanent magnet block. The cuff air bag of the sphygmomanometer is inflated and pressurized by adopting an electromagnetic driving mode in combination with the air bag, the air bag in the air pump can be periodically deformed in a telescopic mode, the air suction and air pressure output are realized by combining with the air nozzle, and the mover of the sphygmomanometer generates periodic movement to compress or stretch the air bag through the electromagnetic induction action of the coil winding and the permanent magnet, so that the air bag is inflated and deflated; the device has the advantages that friction collision between mechanical parts for driving the air pump in the traditional design is avoided, noise generated during equipment working is greatly reduced, and the technical problem that noise interference easily causes inaccurate blood pressure detection results is solved. The invention also discloses an electronic sphygmomanometer.
Description
Technical Field
The invention relates to the technical field of medical care equipment, in particular to an air pump and an electronic sphygmomanometer.
Background
Life changes lead to the state of sub-health and the situation of most people, and human activities are increased to cause personal safety accidents. Therefore, the human health detection means are required to be developed and enriched continuously, for example, a sphygmomanometer is one of them. Blood pressure indicators are very important for human health, so blood pressure measurement devices require continuous improvement.
Important parts of the electronic sphygmomanometer are a cuff air bag, a pressure sensor, an air pump electromagnetic valve and a controller. The process of measuring blood pressure includes a rising air pressure process and a falling air pressure process, and the blood pressure is detected in the process of changing the air pressure. In any mode, the part of the air pump is not separated, the traditional motor is generally used as power for the inflation air pump of the electronic sphygmomanometer in the market, the motor rotates to drive the crankshaft, the crankshaft drives the triangular connecting rod, and the triangular connecting rod drives the inflation air bag cylinder to inflate. Because the energy is transmitted from the motor to the inflatable air bag in the processes and passes through the friction loss of other connecting parts, collision noise is easy to generate when the crankshaft drives the connecting rod to move, and the air bag is inflated in turn along with the rotation of the crankshaft, so that the influence of airflow noise exists, and the working principle of the sphygmomanometer determines that the environment which is relatively quiet and has no noise interference is needed to ensure the accuracy of the detection result.
In summary, how to effectively solve the technical problems that noise interference easily causes inaccurate blood pressure detection results and the like in the working process of the common electronic sphygmomanometer is a problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In view of the above, a first object of the present invention is to provide an air pump, which can effectively solve the technical problems of inaccurate blood pressure detection result caused by noise interference in the operation process of the conventional electronic blood pressure meter, and a second object of the present invention is to provide an electronic blood pressure meter including the air pump.
In order to achieve the first object, the present invention provides the following technical solutions:
an air pump is used for a sphygmomanometer and comprises an air bag and an air tap communicated with the air bag, wherein the air bag is also connected with an electromagnetic driver, the electromagnetic driver comprises a coil winding and a permanent magnet block, and the air bag is driven to deform, suck or extrude air to realize air pressure output through electromagnetic induction movement between the coil winding and the permanent magnet block.
Preferably, in the air pump, the air pump further comprises a cylindrical air pump shell, the air bag is arranged at one end in the air pump shell, and the electromagnetic driver is arranged at the other end in the air pump shell; the coil winding and the permanent magnet blocks are axially arranged in parallel with each other and are parallel to the expansion and contraction direction of the air bag.
Preferably, in the air pump, a sliding push plate is arranged between the air bag and the electromagnetic driver, and the sliding push plate is in sliding fit with the inner side wall of the air pump shell along the expansion direction of the air bag.
Preferably, in the air pump, a coil mounting frame is connected to the sliding push plate, the coil winding is sleeved on the periphery of the coil mounting frame, and a plate perpendicular to the sliding push plate extends out towards the electromagnetic driver.
Preferably, in the air pump, the permanent magnet blocks are arranged on the periphery of the coil winding and are connected with the inner side wall of the air pump shell in a positioning way.
Preferably, in the air pump, a U-shaped magnetic conductive block surrounding the lower part of the coil winding is attached to the inner side wall of the air pump shell, and the permanent magnet block is attached to and fixed to the side surface of the U-shaped magnetic conductive block; the bottom of the U-shaped magnetic conduction block is also connected with a bottom magnetic conduction block extending towards the coil winding, and the bottom magnetic conduction block extends into a central hollow area of the coil winding.
Preferably, in the air pump, the permanent magnet blocks are connected with a bottom plate on the inner side of the air pump shell in a positioning way and extend into a central hollow area of the coil winding.
Preferably, in the air pump, a U-shaped magnetic conductive block surrounding the lower part of the coil winding is attached to the inner side wall of the air pump casing; and one end of the permanent magnet block, which faces the sliding push plate, is connected with a top magnetic conduction block in a laminating way.
Preferably, in the air pump, the air inlet nozzle and the air outlet nozzle of the air bag are respectively provided with a corresponding one-way valve for controlling the airflow direction to pass through unidirectionally.
The air pump provided by the invention is used for a sphygmomanometer and comprises an air bag and an air tap communicated with the air bag, wherein the air bag is also connected with an electromagnetic driver, the electromagnetic driver comprises a coil winding and a permanent magnet block, and the air bag is driven to deform, suck or extrude air to realize air pressure output through electromagnetic induction movement between the coil winding and the permanent magnet block. The technical scheme provided by the invention is different from the air pump working principle of the traditional electronic barometer, the air pump adopts an electromagnetic driving mode to realize inflation and pressurization of a cuff air bag of the sphygmomanometer in cooperation with the air bag, the air bag in the air pump can be periodically deformed in a telescopic manner, the air bag is matched with the air nozzle to realize air suction and air pressure output, the driving air bag acts as an electromagnetic driver, and the mover in the air bag is driven to periodically move through the electromagnetic induction action between the coil winding and the permanent magnet block, so that the air bag is inflated and deflated by compressing or stretching the air bag. The inflatable mode of this design is realized through electromagnetic principle, has avoided the friction collision between the mechanical part of drive air pump in the traditional design, has reduced the noise that equipment during operation produced greatly, has solved common electronic sphygmomanometer working process effectively and has had noise interference to cause the inaccurate technical problem of blood pressure detection result easily.
In order to achieve the second object, the invention also provides an electronic sphygmomanometer, which comprises any one of the air pumps. Because the air pump has the technical effects, the electronic sphygmomanometer with the air pump also has the corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an air pump according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another air pump according to an embodiment of the present invention.
The figures are marked as follows:
the air pump comprises an air bag 1, an air pump shell 2, a sliding push plate 3, a permanent magnet block 4, a coil mounting frame 5, a bottom magnetic conduction block 6, a coil winding 7, a U-shaped magnetic conduction block 8, a one-way valve 9 and a top magnetic conduction block 10.
Detailed Description
The embodiment of the invention discloses an air pump, which aims to solve the technical problem that noise interference is easy to cause inaccurate blood pressure detection results in the working process of a common electronic sphygmomanometer.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an air pump according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of another air pump according to an embodiment of the present invention.
The air pump provided by the embodiment of the invention is used for a sphygmomanometer and comprises an air bag 1 and an air tap communicated with the air bag 1, wherein the air bag 1 is also connected with an electromagnetic driver, the electromagnetic driver comprises a coil winding 7 and a permanent magnet block 4, and the air bag 1 is driven to deform, suck or extrude air to realize air pressure output through electromagnetic induction movement between the coil winding 7 and the permanent magnet block 4.
The air pump in the technical scheme provided by the embodiment is different from the air pump working principle of the traditional electronic barometer, the cuff air bag of the sphygmomanometer is inflated and pressurized by adopting an electromagnetic driving mode to be matched with the air bag, the air bag in the air pump can be periodically deformed in a telescopic mode, the air bag is matched with the air nozzle to realize the output of air suction and air pressure, the electromagnetic driver drives the air bag to act, and the mover is driven to periodically move by the electromagnetic induction between the coil winding and the permanent magnet block, so that the air bag is inflated and deflated by compressing or stretching the air bag. The inflatable mode of this design is realized through electromagnetic principle, has avoided the friction collision between the mechanical part of drive air pump in the traditional design, has reduced the noise that equipment during operation produced greatly, has solved common electronic sphygmomanometer working process effectively and has had noise interference to cause the inaccurate technical problem of blood pressure detection result easily.
In order to further optimize the technical solution, it is preferable that, in the above embodiment, the air pump further includes a cylindrical air pump housing 2, the air bag 1 is mounted at one end in the air pump housing 2, and the electromagnetic driver is mounted at the other end in the air pump housing 2; the coil winding 7 and the permanent magnet pieces 4 are arranged in parallel with each other in the axial direction and in parallel with the direction of expansion and contraction of the airbag 1.
In the technical scheme that this embodiment provided, optimized the global design of air pump, be provided with the air pump shell outside gasbag and electromagnetic drive, the structure of shell mainly used protects inside structure to have the spacing effect of direction, the flexible direction of limit gasbag that can be better, and the periodic motion direction of active cell in the electromagnetic drive. The axial directions of the coil winding and the permanent magnet are parallel to each other, and the specific arrangement mode can be different and various, for example, the coil winding is sleeved on the periphery of the permanent magnet block or the permanent magnet block is uniformly distributed on the periphery of the coil winding, etc.
In order to further optimize the above technical solution, it is preferable that, in the above air pump, a sliding push plate 3 is disposed between the air bag 1 and the electromagnetic driver, and the sliding push plate 3 is slidingly matched with the inner side wall of the air pump housing 2 along the expansion and contraction direction of the air bag 1.
In the technical scheme provided by the embodiment, the connection mode of the air bag and the electromagnetic driver is further optimized, and the air bag and the electromagnetic driver are separated from each other by arranging the sliding push plate between the air bag and the electromagnetic driver, wherein the sliding push plate is perpendicular to the air pump shell in the length direction and is in sliding connection with the air pump shell.
In order to further optimize the above technical solution, it is preferable that, in the above embodiment, in the air pump, a coil mounting frame 5 is connected to the sliding push plate 3, the coil winding 7 is sleeved on the periphery of the coil mounting frame 5, and a plate perpendicular to the sliding push plate 3 is extended toward the electromagnetic driver.
In the technical scheme provided by the embodiment, the cylindrical coil mounting frame which extends out is arranged on the sliding push plate, the coil is connected with the coil mounting frame and sleeved outside the mounting frame, the coil winding is used as a rotor by the design, the permanent magnet block is used as a stator, the motion of the coil winding is pushed through the interaction of the coil winding and the permanent magnet block, and the driving of the air bag is realized.
In order to further optimize the above technical solution, it is preferable in the above embodiment that in the air pump, the permanent magnet blocks 4 are disposed on the outer periphery of the coil winding 7 and are positioned and connected with the inner side wall of the air pump housing 2.
In the technical scheme provided by the embodiment, the internal structural design of the electromagnetic driver is further optimized, the permanent magnet blocks are arranged outside the coil winding structure, the permanent magnet blocks can be designed to be annular and arranged around the coil winding, and the position and the structure of the permanent magnet blocks can be determined by splicing and assembling the permanent magnet blocks in square blocks or other types.
In order to further optimize the above technical solution, it is preferable that, in the above air pump, a U-shaped magnetic conductive block 8 surrounding the lower part of the coil winding 7 is mounted on the inner side wall of the air pump housing 2, and the permanent magnet block 4 is mounted and fixed on the side surface of the U-shaped magnetic conductive block 8; the bottom of the U-shaped magnetic conduction block 8 is also connected with a bottom magnetic conduction block 6 extending towards the coil winding 7, and the bottom magnetic conduction block 6 extends into a central hollow area of the coil winding 7.
In the technical scheme provided by the embodiment, in order to optimize the magnetic structure design of the electromagnetic driver, the design of the magnetic conduction block is further provided, and the magnetic conduction block arranged around the periphery of the coil winding is used for guiding one magnetic pole of the permanent magnet to the other magnetic pole, and meanwhile, a uniform air gap is kept between the guided magnetic pole end and the permanent magnet, and the air gap is larger than the thickness of the coil winding and the coil mounting frame.
In order to further optimize the technical solution, it is preferable, based on the above embodiment, that in the air pump, the permanent magnet block 4 is connected with the bottom plate on the inner side of the air pump housing 2 in a positioning manner, and extends into the central hollow area of the coil winding 7.
In order to further optimize the above technical solution, it is preferable that, in the above air pump, a U-shaped magnetic conductive block 8 surrounding the lower part of the coil winding 7 is attached to the inner side wall of the air pump housing 2; and one end of the permanent magnet block 4, which faces the sliding push plate 3, is connected with a top magnetic conduction block 10 in a fitting way.
In the above embodiment, another technical solution is provided, the permanent magnet blocks are arranged inside the coil windings, and the magnetic field is led out of the coil windings to wrap the coil windings through the magnetic conduction blocks; in keeping with the principles of operation of the above-described embodiments, the general effect is also similar, providing only a further alternative embodiment.
In order to further optimize the above technical solution, it is preferable that, based on the above embodiment, in the air pump, the air inlet nozzle and the air outlet nozzle of the air bag 1 are respectively provided with a corresponding one-way valve 9 for controlling the air flow direction to pass through unidirectionally.
In the technical scheme provided by the embodiment, the color mixer for the air tap is optimized, the color mixer comprises an air inlet tap and an air outlet tap, the air inlet tap is communicated with the atmosphere and is provided with a one-way valve, when the air bag is stretched to increase the volume of the air bag, negative pressure is formed inside the air bag to inwards drive the one-way valve, and external air enters the air bag; conversely, when the air bag is compressed, the internal pressure is increased, the one-way valve of the air inlet nozzle is closed, the one-way valve of the air outlet nozzle is opened outwards, the air bag outputs air and air pressure outwards, and the cuff air bag of the sphygmomanometer is inflated.
In the specific implementation manner provided in the above embodiment, the design of the electromagnetic driver is similar to that of a voice coil motor in a sound box, when the circuit is used for supplying positive and negative alternating current to the winding coil, the air bag can generate periodic air inlet and outlet actions outwards under the action of the periodic electric energy, and the air is in unidirectional motion in the whole action process due to the unidirectional action of the unidirectional valve, so that the air pump is formed. The single inflation amount and inflation frequency of the air pump can be well controlled through the amplitude and time of positive and negative periods of the current.
Based on the air pump provided in the above embodiment, the invention also provides an electronic sphygmomanometer, which comprises any one of the air pumps in the above embodiment. The electronic blood pressure meter adopts the air pump in the embodiment, so the beneficial effects of the electronic blood pressure meter refer to the embodiment.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. An air pump is used for a sphygmomanometer and is characterized by comprising an air bag and an air tap communicated with the air bag, wherein the air bag is also connected with an electromagnetic driver, the electromagnetic driver comprises a coil winding and a permanent magnet block, and the air bag is driven to deform, suck or extrude air to realize air pressure output through electromagnetic induction movement between the coil winding and the permanent magnet block; wherein:
the air pump also comprises a cylindrical air pump shell, the air bag is arranged at one end in the air pump shell, and the electromagnetic driver is arranged at the other end in the air pump shell; the coil winding and the permanent magnet blocks are axially arranged in parallel with each other and are parallel to the expansion and contraction direction of the air bag;
a sliding push plate is arranged between the air bag and the electromagnetic driver, and the sliding push plate is in sliding fit with the inner side wall of the air pump shell along the expansion direction of the air bag;
the coil winding is sleeved on the periphery of the coil mounting frame, and the plate perpendicular to the sliding pushing plate extends out towards the electromagnetic driver.
2. The air pump of claim 1, wherein the permanent magnet pieces are disposed on an outer periphery of the coil winding and are positioned in connection with an inner sidewall of the air pump housing.
3. The air pump according to claim 2, wherein the inner side wall of the air pump shell is provided with a U-shaped magnetic conduction block which surrounds the lower part of the coil winding in a fitting way, and the permanent magnet block is fixedly provided with the side face of the U-shaped magnetic conduction block in a fitting way; the bottom of the U-shaped magnetic conduction block is also connected with a bottom magnetic conduction block extending towards the coil winding, and the bottom magnetic conduction block extends into a central hollow area of the coil winding.
4. Air pump according to claim 1, characterized in that the permanent magnet pieces are connected in a fixed position to the bottom plate of the inner side of the air pump housing, extending into the central hollow area of the coil winding.
5. The air pump of claim 4, wherein the inner side wall of the air pump housing is provided with a U-shaped magnetic conductive block surrounding the lower part of the coil winding in a fitting manner; and one end of the permanent magnet block, which faces the sliding push plate, is connected with a top magnetic conduction block in a laminating way.
6. The air pump according to any one of claims 1 to 5, wherein the air inlet nozzle and the air outlet nozzle of the air bag are respectively provided with a corresponding one-way valve for controlling the one-way passage of the air flow direction.
7. An electronic sphygmomanometer comprising the air pump according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992757.7A CN107550483B (en) | 2017-10-23 | 2017-10-23 | Air pump and electronic sphygmomanometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710992757.7A CN107550483B (en) | 2017-10-23 | 2017-10-23 | Air pump and electronic sphygmomanometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107550483A CN107550483A (en) | 2018-01-09 |
| CN107550483B true CN107550483B (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710992757.7A Active CN107550483B (en) | 2017-10-23 | 2017-10-23 | Air pump and electronic sphygmomanometer |
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| Country | Link |
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| CN (1) | CN107550483B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110192848B (en) * | 2019-06-12 | 2021-08-17 | 贾佩丽 | Medical blood pressure measuring device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2200199A1 (en) * | 1972-01-04 | 1973-07-26 | Speidel & Keller Kg | MAINS OPERATED PNEUMATIC MICROMEMBRANE PUMP FOR OPERATING MANUALLY OPERATED BLOOD PRESSURE MONITORING DEVICES |
| CN1542277A (en) * | 2003-06-04 | 2004-11-03 | 中国科学院长春光学精密机械与物理研 | Gas pressure type microfluid transport method and device therefor |
| CN2771513Y (en) * | 2004-12-13 | 2006-04-12 | 李云生 | Efficient air bag pump |
| CN101691859A (en) * | 2009-10-05 | 2010-04-07 | 朱鲁曰 | Axial-movement single air bag type air pump |
| CN201531388U (en) * | 2009-09-30 | 2010-07-21 | 胜鹏电子(深圳)有限公司 | Water pump with electromagnetic air pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200631551A (en) * | 2005-03-04 | 2006-09-16 | Rossmax Int Ltd | Linear oscillatory pressure electric hemadynamometer |
-
2017
- 2017-10-23 CN CN201710992757.7A patent/CN107550483B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2200199A1 (en) * | 1972-01-04 | 1973-07-26 | Speidel & Keller Kg | MAINS OPERATED PNEUMATIC MICROMEMBRANE PUMP FOR OPERATING MANUALLY OPERATED BLOOD PRESSURE MONITORING DEVICES |
| CN1542277A (en) * | 2003-06-04 | 2004-11-03 | 中国科学院长春光学精密机械与物理研 | Gas pressure type microfluid transport method and device therefor |
| CN2771513Y (en) * | 2004-12-13 | 2006-04-12 | 李云生 | Efficient air bag pump |
| CN201531388U (en) * | 2009-09-30 | 2010-07-21 | 胜鹏电子(深圳)有限公司 | Water pump with electromagnetic air pump |
| CN101691859A (en) * | 2009-10-05 | 2010-04-07 | 朱鲁曰 | Axial-movement single air bag type air pump |
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| CN107550483A (en) | 2018-01-09 |
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