CN112066039A - Pneumatic control valve device, pneumatic control valve group and pneumatic control assembly - Google Patents

Pneumatic control valve device, pneumatic control valve group and pneumatic control assembly Download PDF

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Publication number
CN112066039A
CN112066039A CN202011016150.3A CN202011016150A CN112066039A CN 112066039 A CN112066039 A CN 112066039A CN 202011016150 A CN202011016150 A CN 202011016150A CN 112066039 A CN112066039 A CN 112066039A
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CN
China
Prior art keywords
air
pneumatic control
control valve
passage
electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011016150.3A
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Chinese (zh)
Inventor
张海涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Anheisi Precision Electronics Co ltd
Original Assignee
Dongguan Anheisi Precision Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Anheisi Precision Electronics Co ltd filed Critical Dongguan Anheisi Precision Electronics Co ltd
Priority to CN202011016150.3A priority Critical patent/CN112066039A/en
Publication of CN112066039A publication Critical patent/CN112066039A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
    • F16K11/105—Three-way check or safety valves with two or more closure members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/914—Hydro-pneumatic adjustments of the shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/976—Details or parts not otherwise provided for massaging systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
    • F16K15/026—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open
    • F16K15/028—Check valves with guided rigid valve members the valve being loaded by a spring the valve member being a movable body around which the medium flows when the valve is open the valve member consisting only of a predominantly disc-shaped flat element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K25/00—Details relating to contact between valve members and seats
    • F16K25/005—Particular materials for seats or closure elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0263—Construction of housing; Use of materials therefor of lift valves multiple way valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/025—Actuating devices; Operating means; Releasing devices electric; magnetic actuated by thermo-electric means

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Multiple-Way Valves (AREA)

Abstract

A pneumatic control valve apparatus comprising: the valve body is hollow inside, the elastic component and the electric control module are arranged inside the valve body; the valve body is provided with an air inlet passage, an air charging passage and an air discharging passage which are communicated with the outside, and the air inlet passage is internally provided with a one-way valve; the air inlet passage is used for introducing air, and the inflation passage is used for supplying air to the pneumatic cavity; the elastic component is arranged at one end of the air leakage passage communicated with the outside; the electric control module includes: the circuit board, the first electrode with elasticity and the memory alloy wire connected with the first electrode; one end of the first electrode is connected with the elastic component, and the other end of the first electrode is electrically connected with the circuit board; one end of the memory alloy wire, which is far away from the first electrode, is electrically connected with the circuit board; the electric control module is used for controlling the elastic component to close or open the air leakage passage.

Description

Pneumatic control valve device, pneumatic control valve group and pneumatic control assembly
Technical Field
The present disclosure generally relates to the field of automotive seating technology, and more particularly to a pneumatic control valve device, a pneumatic control valve assembly, and a pneumatic control assembly.
Background
With the development of science and technology, people have higher and higher requirements on the comfort level of an automobile seat, the automobile seat usually has the functions of adjusting the posture and the shape, supporting the seat surface of the seat, massaging the seat surface of the seat and the like, and the combination pneumatic control of a plurality of pneumatic cavities (pneumatic adjusting control devices of the automobile seat) is required; however, in the prior art, the air path control mechanism using a complicated solenoid valve coil generally has the defects of short service life, inconvenient use, inconvenient maintenance and the like.
Disclosure of Invention
In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a pneumatic control valve assembly, a pneumatic control valve bank, and a pneumatic control assembly.
A pneumatic control valve apparatus comprising: the valve body is hollow inside, the elastic component and the electric control module are arranged inside the valve body;
the valve body is provided with an air inlet passage, an air charging passage and an air discharging passage which are communicated with the outside, and the air inlet passage is internally provided with a one-way valve; the air inlet passage is used for introducing air, and the inflation passage is used for supplying air to the pneumatic cavity; the elastic component is arranged at one end of the air leakage passage communicated with the outside;
the electric control module includes: the circuit board, the first electrode with elasticity and the memory alloy wire connected with the first electrode; one end of the first electrode is connected with the elastic component, and the other end of the first electrode is electrically connected with the circuit board; one end of the memory alloy wire, which is far away from the first electrode, is electrically connected with the circuit board; the electric control module is used for controlling the elastic component to close or open the air leakage passage.
According to the technical scheme provided by the embodiment of the application, the elastic component comprises a plastic structure body made of plastic materials.
According to the technical scheme provided by the embodiment of the application, the elastic component comprises a plastic rubber structure body and an elastic body which are integrally arranged; the elastomer includes a metallic elastomer and/or a non-metallic elastomer.
According to the technical scheme provided by the embodiment of the application, the electric control module further comprises: a second electrode disposed on the circuit board; the second electrode is electrically connected with the memory alloy wire.
According to the technical scheme provided by the embodiment of the application, the one-way valve is further provided with a spring body matched with the one-way valve for use.
According to the technical scheme that this application embodiment provided, still include the shell body, valve body and elastic component set up in the shell body, be equipped with on the shell body with admit air the passageway, lose heart the passageway and the through-hole of charging channel intercommunication.
According to the technical scheme provided by the embodiment of the application, the inflation passage is provided with one or more inflation nozzles; an air nozzle structure is arranged on the air inlet passage and is used for connecting an air pump or an air pipe.
According to the technical scheme provided by the embodiment of the application, the first electrode and the second electrode are conductive metal bodies welded or riveted on the circuit board.
A pneumatic control valve assembly comprising said one pneumatic control valve assembly; the pneumatic control valve group comprises: at least two of said pneumatic control valve means; the circuit board is electrically connected with at least two pneumatic control valve devices respectively.
A pneumatic control assembly comprising a pneumatic control valve pack of the type described; further comprising: the pneumatic cavity is connected with the air inflation passage.
In summary, according to the technical scheme of the application, the elastic component and the electric control module are arranged, so that the state of the pneumatic cavity can be conveniently changed; when the memory alloy wire is not electrified, the memory alloy wire is in a relaxation state with a longer length, and when the circuit board controls the memory alloy wire to be electrified, the memory alloy wire can be heated to a memory deformation temperature due to impedance, so that the length of the memory alloy wire is contracted, and then the elastic component is dragged to move to open the air leakage passage.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1-5 are schematic structural diagrams of the present application.
Reference numbers in the figures: 1. a valve body; 2. an intake passage; 3. an inflation passage; 4. an air escape path; 5. a one-way valve; 6. an elastic component; 7. a circuit board; 8. a first electrode; 9. a second electrode; 10. memorizing alloy wires; 11. a spring body; 12. an outer housing; 13. an air pump; 14. a pneumatic cavity; 15. the structure is a guide post.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example one
A pneumatic control valve apparatus comprising: the valve body 1 is hollow inside, the elastic component 6 and the electric control module;
an air inlet passage 2, an air charging passage 3 and an air discharging passage 4 communicated with the outside are arranged on the valve body 1, and a one-way valve 5 is arranged in the air inlet passage 2; the air inlet passage 2 is used for introducing air, and the inflation passage 3 is used for supplying air to the pneumatic cavity 14; the elastic component 6 is arranged at one end of the air leakage passage 4 communicated with the outside;
the electric control module includes: a circuit board 7, a first electrode 8 with elasticity and a memory alloy wire 10 connected with the first electrode 8; one end of the first electrode 8 is connected with the elastic component 6, and the other end of the first electrode 8 is electrically connected with the circuit board 7; one end of the memory alloy wire 10, which is far away from the first electrode 8, is electrically connected with the circuit board 7; the electric control module is used for controlling the elastic component 6 to close or open the air leakage passage 4.
When the device is used, as shown in fig. 1, the electric control module is usually communicated with a circuit in an automobile, the air inlet passage 2 is communicated with an external air source, the inflation passage 3 is communicated with a pneumatic cavity 14 in an automobile seat, such as an air bag body and an air cylinder, and the check valve 5 can ensure that air can only be left in the valve body 1 and cannot flow back; when the memory alloy wire 10 is not electrified, the memory alloy wire 10 is in a relaxation state with a long length, the elastic component 6 on the air release passage 4 can block the memory alloy wire, and the memory alloy wire 10 can be inflated or kept at air pressure through the air inlet passage 2, and when the circuit board 7 controls the memory alloy wire 10 to be electrified, the memory alloy wire 10 can generate heat to memory deformation temperature due to impedance, so that the length of the memory alloy wire is contracted, and the memory alloy wire 10 drags the elastic component 6 to move to open the air release passage 4.
The device has three states as follows:
1. and (3) inflation state: the air supply inflates the pneumatic chamber 14.
The air inlet passage 2 for one-way air inlet is filled with airflow from an air source, flows through the one-way valve 5 and enters the valve body 1; at the moment, the air release passage 4 is blocked by the elastic component 6, and the memory alloy wire 10 of the electric control module is in a relaxed state; the pneumatic cavity 14 is inflated by the airflow through the inflation passage 3, and the pneumatic cavity 14 is deformed correspondingly.
2. The air pressure maintaining state: after the air source inflates the pneumatic cavity 14, the air supply of the air source is stopped, and the pneumatic cavity 14 is in an air pressure maintaining state.
The one-way valve 5 on the air inlet passage 2 prevents the reverse flow of the air flow to the direction of the air source; the air pressure value in the valve body 1 is the same as that of the pneumatic cavity 14; at the moment, the air release passage 4 is still sealed by the elastic component 6, and the memory alloy wire 10 of the electric control module is in a relaxed state; the air in the pneumatic chamber 14 stops flowing and is in a form maintaining state.
3. And (3) air leakage state: the pneumatic chamber 14 is deflated/vented under the control of the electronic control module.
When the memory alloy is electrified, the memory alloy is shortened, the pulling feature 8 is bent and deformed, the elastic component 6 fixed on the pulling feature is separated from the air release passage, and the air release opening is opened. The first electrode has elasticity, and when the memory alloy wire is extended, the memory alloy wire can be self-reset without being driven by external force
At the moment, a memory alloy wire 10 of the electric control module is electrified to enter an impedance heating state, when the memory alloy wire 10 reaches a memory deformation temperature point, the memory alloy wire generates a growth degree contraction and enters a tensioning state, the memory alloy wire 10 pulls a first electrode 8 to drive an elastic component 6 to move away from a blocked air leakage passage 4, the air leakage passage 4 is communicated with the outside to lead out air, and a one-way valve 5 at the air inlet passage 2 prevents the reverse flow of air flow to the direction of an air source; the air in the pneumatic cavity 14 flows into the valve body 1 through the inflation channel 3, then enters the air leakage channel 4 and flows to the external space. At this time, the air in the pneumatic chamber 14 is exhausted, and the pneumatic chamber 14 is deformed correspondingly. Meanwhile, when the memory alloy wire 10 is restored to the original length, the elastic component 6 can be driven to automatically reset without external driving force due to the elasticity of the first electrode 8.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the elastic component 6 comprises a plastic structure made of plastic material.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the elastic component 6 comprises a plastic structure body and an elastic body which are integrally arranged; the elastomer includes a metallic elastomer and/or a non-metallic elastomer.
The elastic component 6 may be an elastic structure such as a spring, a spring sheet, or an elastic material such as elastic rubber, elastic sponge, elastic felt pad, or the like; meanwhile, the conductive metal of the elastic component 6 and the circuit board form the electric connection of positioning welding or riveting. The normally closed extrusion force of the elastic component 6 on the air leakage passage 4 can be set within a certain range value, when the pneumatic cavity 14 is inflated by the air source, when the air pressure or pressure in the air path reaches or exceeds the range value of the normally closed extrusion force of the elastic component 6 on the air leakage passage 4, the elastic component 6 can be opened under the push of high air pressure, so that overflow and air leakage are realized, and the air pressure value in the pneumatic cavity 14 is ensured not to exceed a certain threshold value; thus, the pneumatic chamber 14 can be protected against damage due to overpressure or exceeding of the actuation force limits. Or as shown in fig. 4, the elastic component 6 is provided with a structure with elastic characteristics, and the memory alloy wire 10 and the first electrode 8 are fixed together through the connecting body, so that the movable part of the elastic component 6 is installed in an interference manner, and the movable part replaces a spring and a shrapnel structure to provide extrusion force for the air leakage passage 4, thereby improving the sealing performance.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the electric control module further includes: a second electrode 9 disposed on the circuit board 7; the second electrode 9 is electrically connected with a memory alloy wire 10.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the check valve 5 is also provided with a spring body 11 matched with the check valve. The spring body 11 may be a spring body 11.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: still include shell body 12, valve body 1 and elastic component 6 set up in shell body 12, be equipped with the through-hole with admission passage 2, disappointing route 4 and inflation channel 3 intercommunication on the shell body 12.
As shown in fig. 1-3, the elastic component 6 is disposed outside the valve body 1, and the valve body 1 can be used directly or an outer shell 12 can be disposed to cover the inside of the valve body.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the inflation passage 3 is provided with one or more inflation nozzles; and an air nozzle structure is arranged on the air inlet passage 2 and is used for connecting an air pump or an air pipe.
In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the first electrode 8 and the second electrode 9 are conductive metal bodies welded or riveted on the circuit board 7.
Example two
A pneumatic control valve assembly comprising a pneumatic control valve assembly; the pneumatic control valve group comprises: at least two of said pneumatic control valve means; the circuit board 7 is electrically connected with at least two pneumatic control valve devices respectively.
As shown in fig. 5, two or more pneumatic control valve sets may be provided to form a plurality of linkage matching mechanisms controlled by gas paths; wherein the memory alloy wire can be bent and the direction adjusted through the structural guide post 15 (one or more), and thus the adjustment of the length of the alloy wire is obtained.
A pneumatic control assembly comprising a pneumatic control valve pack of the type described; further comprising: an air pump 13 connected to the intake passage 2, and a pneumatic chamber 14 connected to the inflation passage 3. In this embodiment, a pneumatic control assembly may further include an auxiliary structure such as an air tube connected to a pneumatic control valve set or a pneumatic control valve device.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims (10)

1. A pneumatic control valve device characterized by: the method comprises the following steps: the valve body (1) is hollow inside, the elastic component (6) and the electric control module;
an air inlet passage (2), an air charging passage (3) and an air discharging passage (4) communicated with the outside are arranged on the valve body (1), and a one-way valve (5) is arranged in the air inlet passage (2); the air inlet passage (2) is used for introducing air, and the inflation passage (3) is used for supplying air to the pneumatic cavity (14); the elastic component (6) is arranged at one end of the air leakage passage (4) communicated with the outside;
the electric control module includes: the circuit board (7), a first electrode (8) with elasticity and a memory alloy wire (10) connected with the first electrode (8); one end of the first electrode (8) is connected with the elastic component (6), and the other end of the first electrode (8) is electrically connected with the circuit board (7); one end of the memory alloy wire (10) far away from the first electrode (8) is electrically connected with the circuit board (7); the electric control module is used for controlling the elastic component (6) to close or open the air leakage passage (4).
2. A pneumatic control valve apparatus according to claim 1, wherein: the elastic component (6) comprises a plastic structure body made of plastic materials.
3. A pneumatic control valve device according to claim 2, wherein: the elastic component (6) comprises a plastic structure body and an elastic body which are integrally arranged; the elastomer includes a metallic elastomer and/or a non-metallic elastomer.
4. A pneumatic control valve apparatus according to claim 1, wherein: the electric control module further includes: a second electrode (9) disposed on the circuit board (7); the second electrode (9) is electrically connected with the memory alloy wire (10).
5. A pneumatic control valve apparatus according to claim 1, wherein: and the one-way valve (5) is also provided with a spring body (11) matched with the one-way valve for use.
6. A pneumatic control valve apparatus according to claim 1, wherein: still include shell body (12), valve body (1) and elastic component (6) set up in shell body (12), be equipped with on shell body (12) with admission passage (2), lose heart passageway (4) and aerify the through-hole of passageway (3) intercommunication.
7. A pneumatic control valve apparatus according to claim 1, wherein: the inflation passage (3) is provided with one or more inflation nozzles; an air nozzle structure is arranged on the air inlet passage (2) and is used for connecting an air pump or an air pipe.
8. A pneumatic control valve device according to claim 4, wherein: the first electrode (8) and the second electrode (9) are conductive metal bodies welded or riveted on the circuit board (7).
9. A pneumatic control valve group is characterized in that: comprising a pneumatic control valve device according to any of claims 1-8; the pneumatic control valve group comprises: at least two of said pneumatic control valve means; the circuit board (7) is electrically connected with at least two pneumatic control valve devices respectively.
10. A pneumatic control assembly, characterized by: a pneumatic control valve pack comprising the pneumatic control valve of claim 9; further comprising: an air pump (13) connected with the air inlet passage (2) and a pneumatic cavity (14) connected with the air charging passage (3).
CN202011016150.3A 2020-09-24 2020-09-24 Pneumatic control valve device, pneumatic control valve group and pneumatic control assembly Pending CN112066039A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011016150.3A CN112066039A (en) 2020-09-24 2020-09-24 Pneumatic control valve device, pneumatic control valve group and pneumatic control assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011016150.3A CN112066039A (en) 2020-09-24 2020-09-24 Pneumatic control valve device, pneumatic control valve group and pneumatic control assembly

Publications (1)

Publication Number Publication Date
CN112066039A true CN112066039A (en) 2020-12-11

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CN202011016150.3A Pending CN112066039A (en) 2020-09-24 2020-09-24 Pneumatic control valve device, pneumatic control valve group and pneumatic control assembly

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115071526A (en) * 2021-03-15 2022-09-20 艾福迈精密部件公司 Circuit arrangement and method for actuating a valve, valve arrangement and seat comfort system
CN116920234A (en) * 2023-09-18 2023-10-24 深圳麦普奇医疗科技有限公司 Angiography catheter and angiography system for vascular intervention

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115071526A (en) * 2021-03-15 2022-09-20 艾福迈精密部件公司 Circuit arrangement and method for actuating a valve, valve arrangement and seat comfort system
CN116920234A (en) * 2023-09-18 2023-10-24 深圳麦普奇医疗科技有限公司 Angiography catheter and angiography system for vascular intervention
CN116920234B (en) * 2023-09-18 2023-12-12 深圳麦普奇医疗科技有限公司 Angiography catheter and angiography system for vascular intervention

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