CN115306613B - Electromagnetic valve with electromagnetic shielding function - Google Patents
Electromagnetic valve with electromagnetic shielding function Download PDFInfo
- Publication number
- CN115306613B CN115306613B CN202211025028.1A CN202211025028A CN115306613B CN 115306613 B CN115306613 B CN 115306613B CN 202211025028 A CN202211025028 A CN 202211025028A CN 115306613 B CN115306613 B CN 115306613B
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- CN
- China
- Prior art keywords
- coil
- valve
- electromagnetic
- electromagnetic valve
- metal casing
- 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.)
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Links
- 239000002184 metal Substances 0.000 claims abstract description 51
- 229910052751 metal Inorganic materials 0.000 claims abstract description 51
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000000446 fuel Substances 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 25
- 238000002347 injection Methods 0.000 claims description 19
- 239000007924 injection Substances 0.000 claims description 19
- 238000005086 pumping Methods 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 25
- 238000010521 absorption reaction Methods 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000010724 circulating oil Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
- F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
- F02M59/46—Valves
- F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/04—Pumps peculiar thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
- F02M63/0012—Valves
- F02M63/0014—Valves characterised by the valve actuating means
- F02M63/0015—Valves characterised by the valve actuating means electrical, e.g. using solenoid
- F02M63/0017—Valves characterised by the valve actuating means electrical, e.g. using solenoid using electromagnetic operating means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The invention relates to an electromagnetic valve with an electromagnetic shielding function, and belongs to the technical field of electromagnets. The electromagnetic valve comprises an iron core, a lower metal shell, a lock nut, an upper metal shell, a guide sleeve, an elbow pipe, an aviation plug, a coil, a wire frame and a wire; the inside of iron core is line frame and coil, and the coil encircles on the line frame, and the coil is led outside through the lead frame, and the outside is for coil power supply through the wire, and lower metal casing is left-handed structure, goes up the metal casing and is right-handed structure, makes things convenient for guide sleeve connection installation like this, goes up metal casing right side trompil connection return bend, and connection return bend is connected with aviation plug, and connection return bend can make things convenient for aviation plug connection by angle adjustment at will. The electromagnetic valve with the electromagnetic shielding function has the advantages that the whole high-speed electromagnetic valve is provided with the all-metal shell, electromagnetic interference can be effectively shielded, meanwhile, the structural strength of the electromagnet can be increased, and the electromagnetic valve is not easy to damage.
Description
Technical Field
The invention relates to an electromagnetic valve with an electromagnetic shielding function, and belongs to the technical field of electromagnets.
Background
The electronic control unit pump is a novel fuel injection system capable of meeting the current diesel engine emission regulation and economic requirements, and can realize higher fuel injection pressure and good fuel atomization. The high-speed electromagnetic valve (electromagnetic valve for short) is one of the core components of the electric control unit pump, and the response speed determines the characteristics of the establishment of the oil injection pressure, the oil pressure unloading speed after injection and the like, so that the key characteristics of the oil injection timing, the circulating oil injection quantity and the like of an oil injection system can be influenced, wherein the electromagnetic valve is one of the core components of the electromagnetic valve. The larger response delay of the electromagnetic valve can cause the misalignment of the oil injection timing and the poor precision of the circulating oil injection quantity, thereby leading to the exceeding of the emission standard and the increase of the oil consumption of the diesel engine. The electromagnet of the unit pump is a key component for controlling the timing on-off and the oil injection quantity of the unit pump, and has important effects on improving the combustion efficiency and running stability of the diesel engine.
The defects of the existing electric control unit pump and electromagnet are as follows: the plastic socket has low reliability and poor electromagnetic shielding capability, and the electromagnetic shielding wire 11 is generally hard and difficult to bend at a large angle, so that the electromagnetic shielding wire 11 is difficult to arrange; the plug and the electromagnet are connected by bolts, so that the connection is inconvenient.
Disclosure of Invention
The technical solution of the invention is as follows: overcomes the defects of the prior art and provides an electromagnetic valve with an electromagnetic shielding function.
The technical scheme of the invention is as follows:
an electromagnetic valve with electromagnetic shielding function comprises an iron core, a lower metal shell, a lock nut, an upper metal shell, a guide sleeve, an elbow, an aviation plug, a coil, a wire frame and a wire;
the inside of iron core is coil frame and coil, and the coil encircles to the coil frame on, and the coil is led outside through the lead frame, and outside is supplied power for the coil through the wire, and iron core and coil are wrapped up by lower metal casing and lock nut, are the last metal casing above the lower metal casing, and lower metal casing and last metal casing pass through guide sleeve connection, and lower metal casing is left-handed structure, and last metal casing is right-handed structure, makes things convenient for guide sleeve connection installation like this, goes up metal casing right side trompil connection return bend, connection return bend and aviation plug connection, and the connection return bend can make things convenient for aviation plug 7 to connect by the angle regulation at will.
An oil injection circulation process of the electric control unit pump mainly comprises 3 processes of oil suction, oil pumping and pressure relief, and the specific working process is as follows:
1) In the oil absorption process, when the electromagnetic valve is not electrified, the valve is in an open state, and the oil absorption process is completed by fuel along with the descending of the plunger;
2) In the oil pumping process, the plunger moves upwards under the action of the cam shaft, the electromagnetic valve is in an electrified state, the electromagnet attracts the armature, the valve is closed, the fuel circuit is cut off, and the needle valve is forced to lift after the fuel pressure reaches the opening pressure of the needle valve of the oil injector, so that oil injection is realized;
3) In the pressure relief process, after the electromagnetic valve is powered off, under the action of the armature return spring, the armature is reset, the valve is opened, the plunger cavity is communicated with a low-pressure oil way, the fuel pressure is rapidly reduced, and after the fuel pressure is lower than the opening pressure of the needle valve of the fuel injector, the fuel injector is closed, and fuel injection is stopped.
The working process of the electromagnet part is as follows:
the coil is connected to the lead through the wire frame after being wound around the iron core, the lead is protected by the upper metal shell inside the upper metal shell and is connected to the lead through the driving current of the aviation plug, the electromagnetic force is generated by the electromagnet through the wire frame to the coil, and then the lower metal shell is directly screwed on the electric control unit pump after being fixedly installed by the electromagnet fastening cap, so that the opening and closing of the control valve are realized.
Advantageous effects
(1) The electromagnetic valve with the electromagnetic shielding function disclosed by the invention is fully wrapped by metal, and can shield electromagnetic interference;
(2) The electromagnetic valve with the electromagnetic shielding function has the advantages that the whole high-speed electromagnetic valve is provided with the all-metal shell, electromagnetic interference can be effectively shielded, meanwhile, the structural strength of the electromagnet can be increased, and the electromagnetic valve is not easy to damage;
(3) The electromagnetic valve with the electromagnetic shielding function has the advantages that the left-handed and right-handed thread connecting sleeve ensures that the upper part and the lower part can be connected;
(4) According to the electromagnetic valve with the electromagnetic shielding function, left-handed threads and right-handed threads are respectively adopted on the outer sides of the upper metal shell and the lower metal shell, and the electromagnetic valve is directly screwed on and connected with the upper metal shell and the lower metal shell through the guide sleeve, so that the electromagnetic valve is convenient to install.
(5) According to the electromagnetic valve with the electromagnetic shielding function, the right conical connecting piece is coated with the conductive adhesive, and the adhesive with certain conductive performance after the conductive adhesive is solidified or dried forms a conductive path to realize conductive connection of the adhered materials;
(6) According to the electromagnetic valve with the electromagnetic shielding function, the outlet angle of the bent pipe connecting piece can be changed in a large range, so that the arrangement of shielding wires is facilitated;
(7) According to the electromagnetic valve with the electromagnetic shielding function, the electromagnetic shielding wire which is wrapped with the lead outside is harder, the outgoing angle of the bent pipe connecting piece can be changed in a large range, and the arrangement of the shielding wire is convenient.
(8) When the electric control unit pump is generally installed, the electric control unit pump is not in a state parallel to a horizontal line, for example, the electric control unit pump is arranged in an 8-cylinder V shape, an included angle of 30 degrees is formed between the electric control unit pump and the horizontal line, and at the moment, the outlet angle can be changed in a large range through the bent pipe connecting piece, so that the shielding line is convenient to arrange.
Drawings
Fig. 1 is a schematic structural diagram of a solenoid valve with electromagnetic shielding function according to the present invention.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Examples
As shown in fig. 1, a solenoid valve with electromagnetic shielding function comprises an iron core 3, a lower metal shell 2, a lock nut 1, an upper metal shell 5, a guide sleeve 4, a bent pipe 6, an aviation plug 7, a coil 8, a wire frame 9 and a wire 10;
the inside of iron core 3 is spool 9 and coil 8, coil 8 encircles on spool 9, coil 8 draws outside through spool 9, outside is through wire 10 for coil 8 power supply, iron core 3 and coil 8 are wrapped up by lower metal casing 2 and lock nut 1, be last metal casing 5 above lower metal casing 2, lower metal casing 2 and last metal casing 5 pass through guide sleeve 4 and connect, lower metal casing 2 is left-handed structure, go up metal casing 5 and be right-handed structure, make things convenient for guide sleeve 4 to connect the installation like this, go up metal casing 5 right side trompil connecting bend 6, connecting bend 6 is connected with aviation plug 7, connecting bend 6 can make things convenient for aviation plug 7 to connect by the angle regulation at will.
An oil injection circulation process of the electric control unit pump mainly comprises 3 processes of oil suction, oil pumping and pressure relief, and the specific working process is as follows:
1) In the oil absorption process, when the electromagnetic valve is not electrified, the valve is in an open state, and the oil absorption process is completed by fuel along with the descending of the plunger;
2) In the oil pumping process, the plunger moves upwards under the action of the cam shaft, the electromagnetic valve is in an electrified state, the electromagnet attracts the armature, the valve is closed, the fuel circuit is cut off, and the needle valve is forced to lift after the fuel pressure reaches the opening pressure of the needle valve of the oil injector, so that oil injection is realized;
3) In the pressure relief process, after the electromagnetic valve is powered off, under the action of the armature return spring, the armature is reset, the valve is opened, the plunger cavity is communicated with a low-pressure oil way, the fuel pressure is rapidly reduced, and after the fuel pressure is lower than the opening pressure of the needle valve of the fuel injector, the fuel injector is closed, and fuel injection is stopped.
The working process of the electromagnet part is as follows:
the coil 8 is wound on the iron core 3 and then connected to the lead 10 through the wire frame 9, the lead 10 is protected by the upper metal shell 5 inside the upper metal shell 5, and is connected to the lead 10 through the driving current of the aviation plug 7, the electromagnetic force is generated by the electromagnet through the wire frame 9 to the coil 8, and then the lower metal shell 2 is directly screwed on the electric control unit pump after being fixedly installed by the electromagnet tightening cap 1, so that the opening and closing of the control valve are realized.
Claims (7)
1. An electromagnetic valve with electromagnetic shielding function, which is characterized in that:
the electromagnetic valve comprises an iron core (3), a lower metal shell (2), a lock nut (1), an upper metal shell (5), a guide sleeve (4), an elbow pipe (6), an aviation plug (7), a coil (8), a wire frame (9) and a wire (10);
the inside of iron core (3) is bobbin (9) and coil (8), coil (8) encircle on bobbin (9), coil (8) are led outside through bobbin (9), outside is through wire (10) for coil (8) power supply, iron core (3) and coil (8) are wrapped up by lower metal casing (2) and lock nut (1), be last metal casing (5) above lower metal casing (2), lower metal casing (2) and last metal casing (5) are connected through guide sleeve (4), lower metal casing (2) are left-hand structure, go up metal casing (5) for right-hand structure, make things convenient for guide sleeve (4) to connect the installation like this, go up metal casing (5) right side trompil connection return bend (6), return bend (6) are connected with aviation plug (7).
2. The electromagnetic valve with electromagnetic shielding function according to claim 1, wherein:
the angle of the bent pipe (6) can be adjusted when the bent pipe is connected with the aviation plug (7).
3. Use of the electromagnetic valve with electromagnetic shielding function according to claim 1 or 2, characterized in that:
the electromagnetic valve is applied to the electric control unit pump, and an oil injection circulation process of the electric control unit pump comprises an oil suction process, an oil pumping process and a pressure relief process.
4. The use of a solenoid valve with electromagnetic shielding according to claim 3, characterized in that:
when the electromagnetic valve is not electrified in the oil suction process, the valve is in an open state, and the oil suction process is completed by the fuel along with the descending of the plunger.
5. The use of a solenoid valve with electromagnetic shielding according to claim 3, characterized in that:
during the oil pumping process, the plunger moves upwards under the action of the cam shaft, the electromagnetic valve is in an electrified state, the electromagnet attracts the armature, the valve is closed, the fuel circuit is cut off, and the needle valve is forced to lift after the fuel pressure reaches the opening pressure of the needle valve of the oil injector, so that oil injection is realized.
6. The use of a solenoid valve with electromagnetic shielding according to claim 3, characterized in that:
in the pressure relief process, after the electromagnetic valve is powered off, under the action of the armature return spring, the armature is reset, the valve is opened, the plunger cavity is communicated with a low-pressure oil way, the fuel pressure is reduced, and after the pressure is lower than the opening pressure of the needle valve of the fuel injector, the fuel injector is closed, and fuel injection is stopped.
7. The use of a solenoid valve with electromagnetic shielding according to claim 3, characterized in that:
the working process of the electromagnet part is as follows:
the coil (8) is wound on the iron core (3) and then connected to the lead (10) through the wire frame (9), the lead (10) is protected by the upper metal shell (5) in the upper metal shell (5) and is connected to the lead (10) through the driving current of the aviation plug (7), the electromagnetic force is generated through the wire frame (9) to the coil (8), and then the lower metal shell (2) is directly screwed on the electric control unit pump after being fixed by the electromagnet tight cap to realize the opening and closing of the control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211025028.1A CN115306613B (en) | 2022-08-25 | 2022-08-25 | Electromagnetic valve with electromagnetic shielding function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211025028.1A CN115306613B (en) | 2022-08-25 | 2022-08-25 | Electromagnetic valve with electromagnetic shielding function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115306613A CN115306613A (en) | 2022-11-08 |
| CN115306613B true CN115306613B (en) | 2023-10-24 |
Family
ID=83865612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211025028.1A Active CN115306613B (en) | 2022-08-25 | 2022-08-25 | Electromagnetic valve with electromagnetic shielding function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115306613B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10240880A1 (en) * | 2002-09-04 | 2004-03-18 | Robert Bosch Gmbh | Fuel injector for injection system for internal combustion engines has form-locking connection between component enclosing magnetic valve sub-assembly and drain connector |
| CN201013504Y (en) * | 2006-12-07 | 2008-01-30 | 亚新科南岳（衡阳）有限公司 | Diesel engine fuel injection electric control unit pump |
| KR20100121868A (en) * | 2009-05-11 | 2010-11-19 | (주)모토닉 | Injector for car |
| CN102235281A (en) * | 2010-04-29 | 2011-11-09 | 罗伯特·博世有限公司 | Fixing device for connector |
| JP2012215508A (en) * | 2011-04-01 | 2012-11-08 | Denso Corp | Sensor device |
| CN103065762A (en) * | 2012-12-21 | 2013-04-24 | 中国兵器工业集团第七0研究所 | Close coupled pump electromagnet with electromagnetic shielding function |
| CN104358644A (en) * | 2014-10-30 | 2015-02-18 | 辽宁新风企业集团有限公司 | High-speed electromagnetic valve for oil sprayer |
| CN105332835A (en) * | 2015-11-25 | 2016-02-17 | 哈尔滨工程大学 | Normally open type double-valve electronic control oil injection system for heavy oil |
| CN105351134A (en) * | 2015-12-04 | 2016-02-24 | 广西玉柴机器股份有限公司 | Electromagnetic shielding device of electric-control fuel injector |
| CN205955881U (en) * | 2016-04-07 | 2017-02-15 | 宁波舜田良源油嘴油泵有限公司 | Novel armature assembly for high -Pressure common rail electronically controlled injector |
-
2022
- 2022-08-25 CN CN202211025028.1A patent/CN115306613B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10240880A1 (en) * | 2002-09-04 | 2004-03-18 | Robert Bosch Gmbh | Fuel injector for injection system for internal combustion engines has form-locking connection between component enclosing magnetic valve sub-assembly and drain connector |
| CN201013504Y (en) * | 2006-12-07 | 2008-01-30 | 亚新科南岳（衡阳）有限公司 | Diesel engine fuel injection electric control unit pump |
| KR20100121868A (en) * | 2009-05-11 | 2010-11-19 | (주)모토닉 | Injector for car |
| CN102235281A (en) * | 2010-04-29 | 2011-11-09 | 罗伯特·博世有限公司 | Fixing device for connector |
| JP2012215508A (en) * | 2011-04-01 | 2012-11-08 | Denso Corp | Sensor device |
| CN103065762A (en) * | 2012-12-21 | 2013-04-24 | 中国兵器工业集团第七0研究所 | Close coupled pump electromagnet with electromagnetic shielding function |
| CN104358644A (en) * | 2014-10-30 | 2015-02-18 | 辽宁新风企业集团有限公司 | High-speed electromagnetic valve for oil sprayer |
| CN105332835A (en) * | 2015-11-25 | 2016-02-17 | 哈尔滨工程大学 | Normally open type double-valve electronic control oil injection system for heavy oil |
| CN105351134A (en) * | 2015-12-04 | 2016-02-24 | 广西玉柴机器股份有限公司 | Electromagnetic shielding device of electric-control fuel injector |
| CN205955881U (en) * | 2016-04-07 | 2017-02-15 | 宁波舜田良源油嘴油泵有限公司 | Novel armature assembly for high -Pressure common rail electronically controlled injector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115306613A (en) | 2022-11-08 |
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