WO2020119827A1 - Electrical/pneumatic converter - Google Patents
Electrical/pneumatic converter Download PDFInfo
- Publication number
- WO2020119827A1 WO2020119827A1 PCT/CN2019/127298 CN2019127298W WO2020119827A1 WO 2020119827 A1 WO2020119827 A1 WO 2020119827A1 CN 2019127298 W CN2019127298 W CN 2019127298W WO 2020119827 A1 WO2020119827 A1 WO 2020119827A1
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- WO
- WIPO (PCT)
- Prior art keywords
- permeable sheet
- magnetic field
- magnetic
- control
- coil
- Prior art date
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Classifications
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- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/08—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet
- F16K31/082—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid using a permanent magnet using a electromagnet and a permanent magnet
Definitions
- the invention relates to the technical field of electrical converters.
- Electrical converters convert different current or voltage signals into corresponding fluid pressure signals. Under ideal conditions, the input current is usually proportional to the output fluid pressure. Normally, 4-20mA current signal is used to control the output fluid pressure, which is used in pneumatic valve actuators or as electrical conversion parts for electrical valve positioning parts.
- the electrical converter controls the output pressure by controlling the gap between the nozzle and the baffle.
- the electrical converter changes the gap between the baffle and the nozzle through the electromagnetic force generated in the magnetic field of the energized coil and balances the torque with the shrapnel to change the fluid output pressure.
- FIG. 7 it is a torque motor electrical converter, which is composed of a soft magnetic alloy A102 and a soft magnetic alloy B103 to form a yoke, and a soft magnetic alloy C101 to form a balanced armature, while achieving the baffle function .
- the external permanent magnet A106 provides a magnetic field. After the coil A107 is energized, the internal magnetic field of the balance armature is changed to cause the balance armature to shift, the gap between the soft magnetic alloy C 101 and the nozzle 112 is changed, and the input fluid pressure Psup passes through the orifice 110 After that, the gap between the soft magnetic alloy C 101 and the nozzle 112 is changed to change the output pressure Pout to realize the fluid pressure conversion function.
- the electrical converter coil A107 is installed between the soft magnetic alloy A102 and the soft magnetic alloy B103.
- the permanent magnet A106 passes the soft magnetic alloy A102 and soft magnetic alloy B103 constitutes a closed magnetic circuit. Due to the high magnetic field strength, a soft magnetic alloy with a high saturation magnetic field strength is required to make soft magnetic alloy A102 and soft magnetic alloy B103.
- Traditional electrical converters need to use spring 111 for electrical converter zero adjustment, which has a complicated structure , High processing cost.
- the purpose of the present invention is to overcome the shortcomings of the prior art, and to provide an electrical converter with low manufacturing cost, simple structure, and accurate control of the magnetic circuit gap.
- An electrical converter includes a first permanent magnetic permeable sheet, a second permanent magnetic permeable sheet, a coil, and a first control magnetic field permeable sheet.
- a mounting slot is provided on the magnetic permeable sheet, the coil is placed in the mounting slot of the first permanent magnetic permeable sheet, the first control magnetic field permeable sheet is disposed on the first permanent magnetic permeable sheet and penetrates the coil,
- a second permanent magnetic permeable sheet is provided on one side of the coil, and the second permanent magnetic permeable sheet is fixed on the first permanent magnetic permeable sheet through a fixing bolt.
- the first control magnetic field permeable sheet is in the shape of a "mountain", and its central portion is disposed through the coil.
- a second control magnetic field permeable sheet and a third control magnetic field permeable sheet are provided between the first permanent magnetic permeable sheet and the second permanent magnetic permeable sheet, and the fixing bolts sequentially penetrate the second permanent magnetic permeable sheet
- the magnetic piece, the second control magnetic field magnetic conduction piece, the first control magnetic field magnetic conduction piece and the third control magnetic field magnetic conduction piece are connected to the first permanent magnetic magnetic conduction piece.
- both ends of the second permanent magnetic flux guide are connected to the first permanent magnetic flux guide by fixing bolts, and the second and third control magnetic field flux guides and the first control magnetic field guide Gaskets are arranged between the magnetic pieces, and the gaskets are sleeved on the fixing bolts.
- a permanent magnet is arranged between the second permanent magnetic flux guide piece and the first permanent magnetic flux guide piece, the permanent magnet and the second control magnetic field flux guide piece and the third control magnetic field flux guide piece are located in the coil On the opposite side.
- the invention has the following advantages: 1.
- the electrical converter of the invention has high sensitivity, small coil volume and electrical power consumption, and small amount of soft magnetic alloy usage, which reduces the material cost of the electrical converter, and the soft magnetic alloy parts are easy to process and are precision stamped It can be completed without further mechanical processing, reducing the processing cost;
- the magnetic circuit gap control is simple, the magnetic circuit gap can be controlled by the thickness of the gasket, the magnetic circuit gap error is small, the processing yield of the electrical converter is improved, and the number of components is small , Which reduces the types and quantity of spare materials during production and reduces the overall cost of electrical converters. Due to the small number of components, the volume of electrical converters processed is small, which can greatly reduce the volume of the housing;
- the permanent magnetic circuit and the coil control magnetic circuit are separated to reduce hysteresis
- the first control magnetic field permeable sheet itself realizes the functions of torsion spring and baffle at the same time, reducing the number of parts.
- Figure 1 is a schematic diagram of the explosion structure of the present invention
- FIG. 3 is a schematic cross-sectional structure diagram of the present invention.
- Embodiment 6 is a schematic cross-sectional structure diagram of Embodiment 2.
- an electrical converter includes a first permanent magnetic permeable sheet 5, a second permanent magnetic permeable sheet 4, a coil 7, and a first control magnetic field permeable sheet 1.
- the first A mounting slot is provided on the permanent magnet permeable sheet 5, the coil 7 is placed in the mounting slot of the first permanent magnet permeable sheet 5, and the first control magnetic field permeable sheet 1 is disposed on the first permanent magnet guide The magnetic sheet 5 penetrates the coil 7, and one side of the coil 7 is provided with a second permanent magnetic permeable sheet 4.
- Both the first permanent magnetic permeable sheet and the second permanent magnetic permeable sheet 4 are made of soft magnetic materials and have a thickness
- the second permanent magnetic permeable sheet 4 is fixed on the first permanent magnetic permeable sheet 5 by a fixing bolt 9;
- the first control magnetic field permeable sheet 1 is made of soft magnetic material, and is used for the magnetic field of the coil 7 to generate the control magnetic field
- the magnetic field force generated by the current passing through the coil 7 interacts with the magnetic field generated by the permanent magnet 6, causing the first control magnetic field magnetic deflection sheet 1 to deflect, change the gap between it and the nozzle, and realize the control fluid pressure change
- the internal magnetic field of the soft magnetic alloy C101 is changed to cause the soft magnetic alloy C101 to shift, the gap between the soft magnetic alloy C101 and the nozzle 112 is changed, and the input fluid pressure Psup passes through the joint.
- the gap between the soft magnetic alloy C101 and the nozzle 112 is changed.
- the disadvantage of this control is that the accuracy of the control is not high, and the spring needs to be used to adjust the electrical converter to zero.
- the structure is complicated, the operation is inconvenient, and the control is complicated.
- the first control magnetic field permeable sheet 1 is in the shape of a "mountain", and its central portion is provided through the coil 7.
- a second control magnetic field guide 2 and a third control magnetic field guide 3 are provided between the first permanent magnetic guide 5 and the second permanent magnetic guide 4, and the second control magnetic guide
- the magnetic sheet 2 uses a soft magnetic material for the magnetic field control of the magnetic field generated by the coil 7 current
- the third control magnetic field magnetic sheet 3 uses a soft magnetic material for the magnetic field control of the magnetic field generated by the coil 7, the second control
- the thickness of the magnetic field permeable sheet 2 and the third control magnetic field permeable sheet 3 are the same, and the fixing bolt 9 penetrates the second permanent magnetic permeable sheet 4, the second control magnetic field permeable sheet 2, and the first control magnetic field permeable sheet 1 in sequence It is connected to the third control magnetic field permeable sheet 3 and the first permanent magnetic permeable sheet 5; the second control magnetic field permeable sheet 2, the first control magnetic field permeable sheet 1, the third control magnetic field permeable sheet 3 and the coil 7 are formed
- both ends of the second permanent magnetic flux guide 4 are connected to the first permanent magnetic flux guide 5 through fixing bolts 9.
- the second control magnetic field flux guide 2 and the third control magnetic field flux guide 3 Gaskets 8 are provided between the first control magnetic field permeable sheets 1 and the gaskets 8 are sleeved on the fixing bolts 9; the gaskets 8 are made of non-magnetically conductive materials and the thickness of each gasket 8 is the same.
- the thickness of 8 is used to control the gap of the magnetic circuit; adjusting the thickness of the gasket 8 can be precisely processed, and the thickness accuracy is very high. Through its high precision, the magnetic circuit gap can be accurately controlled.
- a permanent magnet 6 is disposed between the second permanent magnetic flux guide 4 and the first permanent magnetic flux guide 5, the permanent magnet 6 and the second control magnetic field flux guide 2 and the third control magnetic field
- the magnetic permeable sheet 3 is located on the opposite side of the coil 7, that is, the coil 7 is located between the permanent magnet 6 and the second control magnetic field permeable sheet 2 and the third control magnetic field permeable sheet 3, so that the first permanent magnet permeable sheet 5 and the first
- the two permanent magnet permeable sheets 4 have the same shape and size, which reduces the number of processing molds and improves the production efficiency.
- the permanent magnet 6 is used to provide a fixed magnetic field.
- the second permanent magnetic permeable sheet 4 of the second embodiment is in a “convex” shape, and its protruding portion and the first permanent magnetic permeable sheet 5
- a permanent magnet 6 is arranged between the permanent magnet 6, the second control magnetic field permeable sheet 2 and the third control magnetic field permeable sheet 3 are located on the same side of the coil 7.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Electromagnets (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
An electrical/pneumatic converter, comprising a first permanent magnet magnetically conductive sheet (5), a second permanent magnet magnetically conductive sheet (4), a coil (7), and a first control magnetic field magnetically conductive sheet (1). A mounting groove is provided on the first permanent magnet magnetically conductive sheet (5), the coil (7) is provided in the mounting groove of the first permanent magnet magnetically conductive sheet (5), and the first control magnetic field magnetically conductive sheet (1) is provided on the first permanent magnet magnetically conductive sheet (5) and penetrates through the coil (7); the second permanent magnet magnetically conductive sheet (4) is provided on one side of the coil (7), and the second permanent magnet magnetically conductive sheet (4) is fixed to the first permanent magnet magnetically conductive sheet (5) by means of fixing bolts (9). The converter has low manufacturing costs and a simple structure, and can accurately control a magnetic path gap by means of a gasket, and manual adjustment is not needed after assembled.
Description
本发明涉及电气转换器技术领域。The invention relates to the technical field of electrical converters.
电气转换器是将不同的电流或电压信号转换成对应的流体压力信号，在理想条件下，通常输入电流的大小与输出流体压力成正比。通常情况下使用4-20mA电流信号控制输出流体压力，用于气动阀门执行器或作为电气阀门定位件电气转换部件。Electrical converters convert different current or voltage signals into corresponding fluid pressure signals. Under ideal conditions, the input current is usually proportional to the output fluid pressure. Normally, 4-20mA current signal is used to control the output fluid pressure, which is used in pneumatic valve actuators or as electrical conversion parts for electrical valve positioning parts.
电气转换器通过控制喷嘴和挡板间的间隙来控制输出压力的大小。电气转换器通过通电线圈磁场中产生的电磁力，使挡板在磁场受力，与弹片扭矩平衡后改变与喷嘴间的间隙，从而改变流体输出压力。The electrical converter controls the output pressure by controlling the gap between the nozzle and the baffle. The electrical converter changes the gap between the baffle and the nozzle through the electromagnetic force generated in the magnetic field of the energized coil and balances the torque with the shrapnel to change the fluid output pressure.
在现有技术中，如图7所示，其为一种力矩马达电气转换器，由软磁合金A102、软磁合金B103构成磁轭，软磁合金C101构成平衡电枢，同时实现挡板功能。外部永磁体A106提供磁场，线圈A107通电后，改变平衡电枢的内部磁场，使平衡电枢产生偏移，改变软磁合金C 101与喷嘴112间的间隙，输入流体压力Psup通过节流孔110后，改变软磁合金C 101与喷嘴112间的间隙，使输出压力Pout变化，实现流体压力的转换功能。In the prior art, as shown in FIG. 7, it is a torque motor electrical converter, which is composed of a soft magnetic alloy A102 and a soft magnetic alloy B103 to form a yoke, and a soft magnetic alloy C101 to form a balanced armature, while achieving the baffle function . The external permanent magnet A106 provides a magnetic field. After the coil A107 is energized, the internal magnetic field of the balance armature is changed to cause the balance armature to shift, the gap between the soft magnetic alloy C 101 and the nozzle 112 is changed, and the input fluid pressure Psup passes through the orifice 110 After that, the gap between the soft magnetic alloy C 101 and the nozzle 112 is changed to change the output pressure Pout to realize the fluid pressure conversion function.
电气转换器线圈A107安装在软磁合金A102、软磁合金B103之间，为了增加有效磁场面积，磁轭体积较大，需要使用较多软件合金,永磁体A106通过软磁合金A102、软磁合金B103构成闭合磁路，由于磁场强度大，需要采用饱和磁场强度较大的软磁合金制作软磁合金A102、软磁合金B103，传统电气转换器需要使用弹簧111进行电气转换器调零，结构复杂，加工成本高。The electrical converter coil A107 is installed between the soft magnetic alloy A102 and the soft magnetic alloy B103. In order to increase the effective magnetic field area, the yoke volume is large, and more software alloys need to be used. The permanent magnet A106 passes the soft magnetic alloy A102 and soft magnetic alloy B103 constitutes a closed magnetic circuit. Due to the high magnetic field strength, a soft magnetic alloy with a high saturation magnetic field strength is required to make soft magnetic alloy A102 and soft magnetic alloy B103. Traditional electrical converters need to use spring 111 for electrical converter zero adjustment, which has a complicated structure , High processing cost.
又如申请号为201310317836.X的中国专利，其公开了一种电气转换器，其也需要通过调零机构进行调零，才能保证正常工作，这样不方便使用。Another example is the Chinese patent with application number 201310317836.X, which discloses an electrical converter, which also needs to be zero-adjusted through a zero-adjusting mechanism to ensure normal operation, which is not convenient for use.
本发明的目的在于克服现有技术的缺点，提供一种制造成本低，结构简单，且能精确控制磁路间隙的电气转换器。The purpose of the present invention is to overcome the shortcomings of the prior art, and to provide an electrical converter with low manufacturing cost, simple structure, and accurate control of the magnetic circuit gap.
本发明的目的通过以下技术方案来实现：一种电气转换器，包括第一永磁导磁片、第二永磁导磁片、线圈和第一控制磁场导磁片，所述的第一永磁导磁片上设置有安装槽，所述的线圈置于第一永磁导磁片的安装槽内，所述的第一控制磁场导磁片设置在第一永磁导磁片上且贯穿线圈，线圈的一侧设置有第二永磁导磁片，第二永磁导磁片通过固定螺栓固定在第一永磁导磁片上。The object of the present invention is achieved by the following technical solution: An electrical converter includes a first permanent magnetic permeable sheet, a second permanent magnetic permeable sheet, a coil, and a first control magnetic field permeable sheet. A mounting slot is provided on the magnetic permeable sheet, the coil is placed in the mounting slot of the first permanent magnetic permeable sheet, the first control magnetic field permeable sheet is disposed on the first permanent magnetic permeable sheet and penetrates the coil, A second permanent magnetic permeable sheet is provided on one side of the coil, and the second permanent magnetic permeable sheet is fixed on the first permanent magnetic permeable sheet through a fixing bolt.
具体地，所述的第一控制磁场导磁片为“山”字形，其中部贯穿线圈设置。Specifically, the first control magnetic field permeable sheet is in the shape of a "mountain", and its central portion is disposed through the coil.
具体地，所述的第一永磁导磁片和第二永磁导磁片之间设置有第二控制磁场导磁片和第三控制磁场导磁片，固定螺栓依次贯穿第二永磁导磁片、第二控制磁场导磁片、和第一控制磁场导磁片和第三控制磁场导磁片与第一永磁导磁片连接。Specifically, a second control magnetic field permeable sheet and a third control magnetic field permeable sheet are provided between the first permanent magnetic permeable sheet and the second permanent magnetic permeable sheet, and the fixing bolts sequentially penetrate the second permanent magnetic permeable sheet The magnetic piece, the second control magnetic field magnetic conduction piece, the first control magnetic field magnetic conduction piece and the third control magnetic field magnetic conduction piece are connected to the first permanent magnetic magnetic conduction piece.
具体地，所述的第二永磁导磁片两端均通过固定螺栓与第一永磁导磁片连接，第二控制磁场导磁片和第三控制磁场导磁片与第一控制磁场导磁片之间均设置有垫片，垫片套设在固定螺栓上。Specifically, both ends of the second permanent magnetic flux guide are connected to the first permanent magnetic flux guide by fixing bolts, and the second and third control magnetic field flux guides and the first control magnetic field guide Gaskets are arranged between the magnetic pieces, and the gaskets are sleeved on the fixing bolts.
具体地，所述的第二永磁导磁片第一永磁导磁片之间设置有永磁体，所述的永磁体与第二控制磁场导磁片和第三控制磁场导磁片位于线圈的对侧。Specifically, a permanent magnet is arranged between the second permanent magnetic flux guide piece and the first permanent magnetic flux guide piece, the permanent magnet and the second control magnetic field flux guide piece and the third control magnetic field flux guide piece are located in the coil On the opposite side.
本发明具有以下优点：1、本发明的电气转换器灵敏度高，线圈体积和电气功耗小，软磁合金使用量小，降低了电气转换器物料成本，软磁合金零件加工简单，用精密冲压就可完成，无需进一步机械加工，降低了加工成本；磁路间隙控制简单，可用垫片的厚度来控制磁路间隙，磁路间隙误差小，提高了电气转换器的加工成品率，元件数量少，降低了生产时备料的种类和数量，降低电气转换器整体成本，由于元件的数量少，加工出来的电气转换器体积小，可大大减小外壳体积；The invention has the following advantages: 1. The electrical converter of the invention has high sensitivity, small coil volume and electrical power consumption, and small amount of soft magnetic alloy usage, which reduces the material cost of the electrical converter, and the soft magnetic alloy parts are easy to process and are precision stamped It can be completed without further mechanical processing, reducing the processing cost; the magnetic circuit gap control is simple, the magnetic circuit gap can be controlled by the thickness of the gasket, the magnetic circuit gap error is small, the processing yield of the electrical converter is improved, and the number of components is small , Which reduces the types and quantity of spare materials during production and reduces the overall cost of electrical converters. Due to the small number of components, the volume of electrical converters processed is small, which can greatly reduce the volume of the housing;
2、永磁磁路和线圈控制磁路分离，减少磁滞；2. The permanent magnetic circuit and the coil control magnetic circuit are separated to reduce hysteresis;
3、第一控制磁场导磁片本身同时实现扭簧，挡板功能，减小零件数量。3. The first control magnetic field permeable sheet itself realizes the functions of torsion spring and baffle at the same time, reducing the number of parts.
图1 为本发明的爆炸结构示意图；Figure 1 is a schematic diagram of the explosion structure of the present invention;
图2 为本发明的装配结构示意图；2 is a schematic diagram of the assembly structure of the present invention;
图3 为本发明的剖视结构示意图；3 is a schematic cross-sectional structure diagram of the present invention;
图4 为实施例二的爆炸结构示意图；4 is a schematic diagram of the explosion structure of the second embodiment;
图5 为实施例二的装配结构示意图；5 is a schematic diagram of the assembly structure of the second embodiment;
图6 为实施例二的剖视结构示意图；6 is a schematic cross-sectional structure diagram of Embodiment 2;
图7为现有技术的结构示意图；7 is a schematic structural diagram of the prior art;
图中：1-第一控制磁场导磁片，2-第二控制磁场导磁片，3-第三控制磁场导磁片，4-第二永磁导磁片，5-第一永磁导磁片，6-永磁体，7-线圈，8-垫片，9-固定螺栓，101-软磁合金C，102-软磁合金B，103-软磁合金C，106-永磁体A，107-线圈A，110-节流孔，111-弹簧，112-喷嘴。In the picture: 1- the first control magnetic field permeable sheet, 2- the second control magnetic field permeable sheet, 3- the third control magnetic field permeable sheet, 4- the second permanent magnetic permeable sheet, 5- the first permanent magnetic permeable sheet Magnetic sheet, 6-permanent magnet, 7-coil, 8-washer, 9-fixing bolt, 101-soft magnetic alloy C, 102-soft magnetic alloy B, 103-soft magnetic alloy C, 106-permanent magnet A, 107 -Coil A, 110-orifice, 111-spring, 112-nozzle.
下面结合附图对本发明做进一步的描述，但本发明的保护范围不局限于以下所述。The present invention will be further described below with reference to the drawings, but the scope of protection of the present invention is not limited to the following.
实施例一、Example one
如图1～3所示，一种电气转换器，包括第一永磁导磁片5、第二永磁导磁片4、线圈7和第一控制磁场导磁片1，所述的第一永磁导磁片5上设置有安装槽，所述的线圈7置于第一永磁导磁片5的安装槽内，所述的第一控制磁场导磁片1设置在第一永磁导磁片5上且贯穿线圈7，线圈7的一侧设置有第二永磁导磁片4，第一永磁导磁片和5第二永磁导磁片4均采用软磁材料，且厚度相同，第二永磁导磁片4通过固定螺栓9固定在第一永磁导磁片5上；第一控制磁场导磁片1采用软磁材料，用于线圈7电流产生控制磁场的导磁，同时作为挡板，电流通过线圈7后产生磁场力与永磁体6产生的磁场相互作用，使第一控制磁场导磁片1产生偏转，改变其与喷嘴间的间隙，实现控制流体压力的改变；在现有技术中，是通过线圈A107通电后，改变软磁合金C101的内部磁场，使软磁合金C101产生偏移，改变软磁合金C101与喷嘴112间的间隙，输入流体压力Psup通过节流孔110后，改变软磁合金C101与喷嘴112间的间隙，这样控制的缺点是控制的精度不高，且还需要使用弹簧进行电气转换器调零,结构复杂，不便于操作，控制复杂。As shown in FIGS. 1 to 3, an electrical converter includes a first permanent magnetic permeable sheet 5, a second permanent magnetic permeable sheet 4, a coil 7, and a first control magnetic field permeable sheet 1. The first A mounting slot is provided on the permanent magnet permeable sheet 5, the coil 7 is placed in the mounting slot of the first permanent magnet permeable sheet 5, and the first control magnetic field permeable sheet 1 is disposed on the first permanent magnet guide The magnetic sheet 5 penetrates the coil 7, and one side of the coil 7 is provided with a second permanent magnetic permeable sheet 4. Both the first permanent magnetic permeable sheet and the second permanent magnetic permeable sheet 4 are made of soft magnetic materials and have a thickness In the same way, the second permanent magnetic permeable sheet 4 is fixed on the first permanent magnetic permeable sheet 5 by a fixing bolt 9; the first control magnetic field permeable sheet 1 is made of soft magnetic material, and is used for the magnetic field of the coil 7 to generate the control magnetic field At the same time, as a baffle, the magnetic field force generated by the current passing through the coil 7 interacts with the magnetic field generated by the permanent magnet 6, causing the first control magnetic field magnetic deflection sheet 1 to deflect, change the gap between it and the nozzle, and realize the control fluid pressure change In the prior art, after the coil A107 is energized, the internal magnetic field of the soft magnetic alloy C101 is changed to cause the soft magnetic alloy C101 to shift, the gap between the soft magnetic alloy C101 and the nozzle 112 is changed, and the input fluid pressure Psup passes through the joint. After the orifice 110, the gap between the soft magnetic alloy C101 and the nozzle 112 is changed. The disadvantage of this control is that the accuracy of the control is not high, and the spring needs to be used to adjust the electrical converter to zero. The structure is complicated, the operation is inconvenient, and the control is complicated.
进一步地，所述的第一控制磁场导磁片1为“山”字形，其中部贯穿线圈7设置。Further, the first control magnetic field permeable sheet 1 is in the shape of a "mountain", and its central portion is provided through the coil 7.
进一步地，所述的第一永磁导磁片5和第二永磁导磁片4之间设置有第二控制磁场导磁片2和第三控制磁场导磁片3，第二控制磁场导磁片2采用软磁材料，用于线圈7电流产生的控制磁场的导磁，第三控制磁场导磁片3采用软磁材料，用于线圈7电流产生的控制磁场的导磁，第二控制磁场导磁片2和第三控制磁场导磁片3的厚度相同，固定螺栓9依次贯穿第二永磁导磁片4、第二控制磁场导磁片2、和第一控制磁场导磁片1和第三控制磁场导磁片3与第一永磁导磁片5连接；第二控制磁场导磁片2、第一控制磁场导磁片1和第三控制磁场导磁片3与线圈7构成控制磁场的闭合回路，永磁体6、第二永磁导磁片4、第一永磁导磁片5、第二控制磁场导磁片2和第三控制磁场导磁片3构成永磁体磁路的闭合回路，本实施例的将永磁磁路和线圈控制磁路分离开，减少了磁滞，提高其稳定性。Further, a second control magnetic field guide 2 and a third control magnetic field guide 3 are provided between the first permanent magnetic guide 5 and the second permanent magnetic guide 4, and the second control magnetic guide The magnetic sheet 2 uses a soft magnetic material for the magnetic field control of the magnetic field generated by the coil 7 current, the third control magnetic field magnetic sheet 3 uses a soft magnetic material for the magnetic field control of the magnetic field generated by the coil 7, the second control The thickness of the magnetic field permeable sheet 2 and the third control magnetic field permeable sheet 3 are the same, and the fixing bolt 9 penetrates the second permanent magnetic permeable sheet 4, the second control magnetic field permeable sheet 2, and the first control magnetic field permeable sheet 1 in sequence It is connected to the third control magnetic field permeable sheet 3 and the first permanent magnetic permeable sheet 5; the second control magnetic field permeable sheet 2, the first control magnetic field permeable sheet 1, the third control magnetic field permeable sheet 3 and the coil 7 are formed The closed loop of the control magnetic field, the permanent magnet 6, the second permanent magnetic flux guide 4, the first permanent magnetic flux guide 5, the second control magnetic flux guide 2 and the third control magnetic flux guide 3 constitute a permanent magnet magnetic circuit In the closed loop of this embodiment, the permanent magnetic circuit and the coil control magnetic circuit are separated, which reduces hysteresis and improves its stability.
进一步地，所述的第二永磁导磁片4两端均通过固定螺栓9与第一永磁导磁片5连接，第二控制磁场导磁片2和第三控制磁场导磁片3与第一控制磁场导磁片1之间均设置有垫片8，垫片8套设在固定螺栓9上；垫片8采用非导磁材料，且各个垫片8的厚度相同，通过调整垫片8的厚度来控制磁路的间隙；调整垫片8的厚度可以进行精密加工，其厚度的精度很高，通过其高精度达到对磁路间隙的精确控制。Further, both ends of the second permanent magnetic flux guide 4 are connected to the first permanent magnetic flux guide 5 through fixing bolts 9. The second control magnetic field flux guide 2 and the third control magnetic field flux guide 3 Gaskets 8 are provided between the first control magnetic field permeable sheets 1 and the gaskets 8 are sleeved on the fixing bolts 9; the gaskets 8 are made of non-magnetically conductive materials and the thickness of each gasket 8 is the same. The thickness of 8 is used to control the gap of the magnetic circuit; adjusting the thickness of the gasket 8 can be precisely processed, and the thickness accuracy is very high. Through its high precision, the magnetic circuit gap can be accurately controlled.
进一步地，所述的第二永磁导磁片 4第一永磁导磁片5之间设置有永磁体6，所述的永磁体6与第二控制磁场导磁片2和第三控制磁场导磁片3位于线圈7的对侧，即线圈7位于永磁体6与第二控制磁场导磁片2和第三控制磁场导磁片3之间，这样第一永磁体导磁片5和第二永磁体导磁片4具有相同的外形和尺寸，减少加工模具数量，提高了生产的效率，永磁体6用于提供固定磁场。Further, a permanent magnet 6 is disposed between the second permanent magnetic flux guide 4 and the first permanent magnetic flux guide 5, the permanent magnet 6 and the second control magnetic field flux guide 2 and the third control magnetic field The magnetic permeable sheet 3 is located on the opposite side of the coil 7, that is, the coil 7 is located between the permanent magnet 6 and the second control magnetic field permeable sheet 2 and the third control magnetic field permeable sheet 3, so that the first permanent magnet permeable sheet 5 and the first The two permanent magnet permeable sheets 4 have the same shape and size, which reduces the number of processing molds and improves the production efficiency. The permanent magnet 6 is used to provide a fixed magnetic field.
实施例二、Example 2
如图4～6所示，在实施例一的基础上，作为优选方案，实施例二的第二永磁导磁片4为“凸”字形，其突出部与第一永磁导磁片5之间设置有永磁体6，所述的永磁体6、第二控制磁场导磁片2和第三控制磁场导磁片3位于线圈7的同侧。As shown in FIGS. 4 to 6, on the basis of the first embodiment, as a preferred solution, the second permanent magnetic permeable sheet 4 of the second embodiment is in a “convex” shape, and its protruding portion and the first permanent magnetic permeable sheet 5 A permanent magnet 6 is arranged between the permanent magnet 6, the second control magnetic field permeable sheet 2 and the third control magnetic field permeable sheet 3 are located on the same side of the coil 7.
以上所述，仅为本发明的较佳实施例，并非对本发明做任何形式上的限制。任何熟悉本领域的技术人员，在不脱离本发明技术方案范围情况下，都可利用上述所述技术内容对本发明技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术对以上实施例所做的任何改动修改、等同变化及修饰，均属于本技术方案的保护范围。The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any person skilled in the art, without departing from the scope of the technical solutions of the present invention, can use the technical content described above to make many possible changes and modifications to the technical solutions of the present invention, or to modify equivalent embodiments of equivalent changes . Therefore, any changes, equivalent changes, and modifications made to the above embodiments according to the technology of the present invention without departing from the technical solution of the present invention belong to the protection scope of the technical solution.
Claims (4)
- 一种电气转换器，其特征在于：包括第一永磁导磁片（5）、第二永磁导磁片（4）、线圈（7）和第一控制磁场导磁片（1），所述的第一永磁导磁片（5）上设置有安装槽，所述的线圈（7）置于第一永磁导磁片（5）的安装槽内，所述的第一控制磁场导磁片（1）设置在第一永磁导磁片（5）上且贯穿线圈（7），线圈（7）的一侧设置有第二永磁导磁片（4），第二永磁导磁片（4）通过固定螺栓（9）固定在第一永磁导磁片（5）上。An electrical converter, characterized in that it includes a first permanent magnetic permeable sheet (5), a second permanent magnetic permeable sheet (4), a coil (7) and a first control magnetic field permeable sheet (1). The first permanent magnetic permeable sheet (5) is provided with a mounting slot, the coil (7) is placed in the mounting slot of the first permanent magnetic permeable sheet (5), and the first control magnetic field The magnetic sheet (1) is arranged on the first permanent magnetic permeable sheet (5) and penetrates the coil (7), and a second permanent magnetic permeable sheet (4) is provided on one side of the coil (7) The magnetic piece (4) is fixed on the first permanent magnetic conductive piece (5) through a fixing bolt (9).
- 根据权利要求1所述的一种电气转换器，其特征在于：所述的第一控制磁场导磁片（1）为“山”字形，其中部贯穿线圈（7）设置。An electrical converter according to claim 1, characterized in that the first control magnetic field permeable sheet (1) is in the shape of a "mountain", and the central part is provided through the coil (7).
- 根据权利要求1所述的一种电气转换器，其特征在于：所述的第一永磁导磁片（5）和第二永磁导磁片（4）之间设置有第二控制磁场导磁片（2）和第三控制磁场导磁片（3），固定螺栓（9）依次贯穿第二永磁导磁片（4）、第二控制磁场导磁片（2）、第一控制磁场导磁片（1）和第三控制磁场导磁片（3）与第一永磁导磁片（5）连接。An electrical converter according to claim 1, characterized in that a second control magnetic field guide is provided between the first permanent magnetic permeable sheet (5) and the second permanent magnetic permeable sheet (4) The magnetic piece (2) and the third control magnetic field permeable sheet (3), the fixing bolt (9) penetrates the second permanent magnetic permeable sheet (4), the second control magnetic field permeable sheet (2), and the first control magnetic field in sequence The magnetic permeable sheet (1) and the third control magnetic field permeable sheet (3) are connected to the first permanent magnetic permeable sheet (5).
- 根据权利要求3所述的一种电气转换器，其特征在于：所述的第二永磁导磁片（4）两端均通过固定螺栓（9）与第一永磁导磁片（5）连接，第二控制磁场导磁片（2）和第三控制磁场导磁片（3）与第一控制磁场导磁片（1）之间均设置有垫片（8），垫片（8）套设在固定螺栓（9）上。An electrical converter according to claim 3, characterized in that: both ends of the second permanent magnetic permeable sheet (4) are connected to the first permanent magnetic permeable sheet (5) through fixing bolts (9) Connected, a gasket (8) is provided between the second control magnetic field permeable sheet (2) and the third control magnetic field permeable sheet (3) and the first control magnetic field permeable sheet (1), the gasket (8) Set on the fixing bolt (9).
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| CN201811504638.3 | 2018-12-10 | ||
| CN201811504638.3A CN109469762B (en) | 2018-12-10 | 2018-12-10 | A kind of electropneumatic transducer |
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| CN201866259U (en) * | 2010-11-05 | 2011-06-15 | 郑鉴川 | Self-locking electromagnetic gas valve |
| KR101337287B1 (en) * | 2011-12-19 | 2013-12-06 | 주식회사 영텍 | A electro pneumatic converter with low hysteresis characteristic |
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| CN2346044Y (en) * | 1998-05-09 | 1999-10-27 | 林育春 | Automatic controlled electric-pnematic converter |
| CN201966259U (en) * | 2010-11-30 | 2011-09-07 | 山东电力集团公司济宁供电公司 | Special device for changing storage battery |
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