Reverse electronic actuator of fuel cut-off electromagnetic valve of fuel pump

Abstract

The utility model relates to a reverse electronic actuator of a fuel pump fuel cut-off solenoid valve, which comprises a power supply component, a rear end cover, a framework, an enameled coil, a draw hook, a movable iron core and a spring, the enameled coil is wound on the framework, the rear end cover is arranged at one end of the framework, two ends of the spring are respectively connected with the rear end cover and the movable iron core, and the draw hook is arranged on the framework. One end of the drag hook penetrates through the enameled coil, the rear end cover and the spring to be connected to the movable iron core, and the power supply assembly is electrically connected with the enameled coil and used for supplying power to the enameled coil when an automobile flames out. The problem that the enameled coil is heated due to long-time electrification can be avoided, the service life of the product is prolonged, and the electric energy of an engine storage battery is saved.

Description

Technical Field

[0001] This utility model relates to the field of fuel cut-off solenoid valve technology, specifically a reverse electronic actuator for a fuel pump fuel cut-off solenoid valve. Background Technology

[0002] The existing fuel pump cut-off solenoid valve works as follows: when the ignition circuit is connected, the coil inside the solenoid valve generates a magnetic field, attracting the iron core and thus opening the fuel pump's fuel supply, allowing the engine to operate normally. When the ignition circuit is de-energized (engine off), the magnetic field inside the solenoid valve disappears, and the iron core returns to its original position under the action of the return spring, thereby cutting off the fuel pump's fuel supply and achieving the purpose of shutting off the engine. However, a characteristic of these products is that the coil in the solenoid valve is always energized when the car engine is running. If this continues for too long, the coil will heat up, causing the magnetic field to weaken, which will lead to a decrease in product performance. In addition, the coil's continuous power consumption is not conducive to energy saving. Utility Model Content

[0003] This utility model addresses the technical problems existing in the prior art by providing a reverse electronic actuator for a fuel pump cut-off solenoid valve, thereby increasing the product's service life and saving engine battery power.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A reverse electronic actuator for a fuel pump cut-off solenoid valve includes a power supply component, a rear end cover, a frame, an enameled coil, a hook, a moving iron core, and a spring. The enameled coil is wound on the frame, the rear end cover is disposed at one end of the frame, the two ends of the spring are respectively connected to the rear end cover and the moving iron core, and one end of the hook passes through the enameled coil, the rear end cover, and the spring and is connected to the moving iron core. The power supply component is electrically connected to the enameled coil and is used to supply power to the enameled coil when the car is turned off.

[0005] Furthermore, the power supply component includes a connector and a reverse actuator circuit board. The connector is used to electrically connect to the vehicle's ignition circuit and to the reverse actuator circuit board, which is electrically connected to the enameled coil.

[0006] Furthermore, an actuator housing is provided outside the reverse actuator circuit board.

[0007] Furthermore, the power supply component includes wires and a corrugated pipe. The wires are electrically connected to the connector and the corrugated pipe, respectively, and the corrugated pipe is electrically connected to the reverse actuator circuit board.

[0008] Furthermore, the reverse actuator of the oil cut-off solenoid valve also includes a housing, the frame and the enameled coil are both disposed inside the housing, and the rear end cover is connected to one end of the housing.

[0009] Furthermore, the housing is provided with an injection hole.

[0010] Furthermore, the reverse actuator of the oil shut-off solenoid valve also includes a mounting bracket, and the end of the housing away from the rear end cover is connected to the mounting bracket.

[0011] Furthermore, the frame and the mounting bracket are secured together with cable ties.

[0012] Furthermore, the hook includes a connecting part and a pulling part. The connecting part is connected to the moving iron core, and the end away from the moving iron core is connected to the pulling part through a hexagonal seat.

[0013] Furthermore, a dust cover is fitted on the outer side of the spring.

[0014] The beneficial effects of this utility model are as follows: When the car is in the ignition state, the hook is set in the position where the oil circuit is connected, and when the car is turned off, the power supply component supplies power to the enameled coil, thereby enabling the moving iron core to drive the hook to move, thereby closing the oil circuit. This ensures that the enameled coil is not energized when the car engine is running, and is only briefly energized when the car is turned off. This avoids the problem of the enameled coil overheating due to prolonged energization, increases the service life of the product, and saves the power of the engine battery. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the reverse electronic actuator of the oil interruption solenoid valve of this utility model.

[0016] Figure 2 This is a schematic diagram of the circuit structure of the reverse actuator circuit board;

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Connector; 2. Wire; 3. Corrugated pipe; 4. Actuator housing; 5. Rear end cover; 6. Housing; 7. Frame; 8. Enamelled coil; 9. Mounting bracket; 10. Cable tie; 11. Hexagonal base; 12. Hook; 13. Moving iron core; 14. Spring; 15. Reverse actuator circuit board; 16. Dust cover; 17. Glue potting hole. Detailed Implementation

[0019] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0020] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrally formed structures. Those skilled in the art can understand the specific meaning of these terms in this patent based on the specific circumstances.

[0021] like Figure 1-2 As shown, the present invention provides a reverse electronic actuator for a fuel pump cut-off solenoid valve, including a power supply component, a rear end cover 5, a frame 7, an enameled coil 8, a hook 12, a moving iron core 13, and a spring 14. The enameled coil 8 is wound on the frame 7, the rear end cover 5 is disposed at one end of the frame 7, and the two ends of the spring 14 are respectively connected to the rear end cover 5 and the moving iron core 13. One end of the hook 12 passes through the enameled coil 8, the rear end cover 5, and the spring 14 and is connected to the moving iron core 13. The power supply component is electrically connected to the enameled coil 8 and is used to supply power to the enameled coil 8 when the vehicle is turned off.

[0022] It is understandable that the power supply component is electrically connected to the car battery and only supplies power to the enameled coil 8 when the car is off, but not when the car is on.

[0023] In this embodiment, initially, the fuel pump's fuel line is open. When the power supply component supplies power to the enameled coil 8, the enameled coil 8 generates an electromagnetic field, creating a magnetic attraction that draws the moving iron core 13 towards the rear end cover 5. At this time, the spring 14 is compressed, and the hook 12 moves along with the moving iron core 13, cutting off the fuel line and thus turning off the vehicle. That is, when the vehicle is off, the enameled coil 8 is energized, and the hook 12 moves to cut off the fuel line. When the power supply component stops supplying power to the enameled coil 8, the electromagnetic field of the enameled coil 8 disappears, the magnetic attraction also disappears, the moving iron core 13 returns to its original position under the action of the spring 14, and the hook 12 also moves back to its original position, reconnecting the fuel line and thus supplying fuel to the vehicle. That is, when the vehicle is started, the enameled coil 8 is de-energized, and the hook 12 returns to its initial position to connect the fuel line.

[0024] Understandably, with the above settings, the enameled coil 8 will only work briefly when the car is turned off during driving, and will not heat up due to prolonged energization, thus affecting the product's performance, increasing the product's lifespan, and saving the engine battery's energy.

[0025] Furthermore, the power supply assembly includes a connector 1 and a reverse actuator circuit board 15. The connector 1 is used to electrically connect to the ignition circuit of the vehicle and to the reverse actuator circuit board 15, which is electrically connected to the enameled coil 8.

[0026] It is understandable that the reverse actuator circuit board 15 achieves the effect of supplying power when the car is turned off and stopping the power supply after the car is started.

[0027] Furthermore, an actuator housing 4 is provided outside the reverse actuator circuit board 15.

[0028] Furthermore, the power supply component includes a wire 2 and a bellows 3. The wire 2 is electrically connected to the connector 1 and the bellows 3 respectively, and the bellows 3 is electrically connected to the reverse actuator circuit board 15.

[0029] It is understandable that the circuit diagram of the reverse actuator circuit board 15 is as follows: Figure 2 As shown.

[0030] Furthermore, the reverse actuator of the oil shut-off solenoid valve also includes a housing 6, a frame 7 and an enameled coil 8, all housed inside the housing 6, with the rear end cover 5 connected to one end of the housing 6.

[0031] Furthermore, the housing 6 is provided with an adhesive filling hole 17.

[0032] It is understandable that the glue-filling hole 17 is used to fill AB glue. A and B silicone are mixed in a 1:1 ratio and poured into the space between the housing 6 and the enameled coil 8 through the glue-filling hole 17 to achieve waterproofing, oil resistance, and vibration resistance. If the enameled coil 8 is in direct contact with the housing 6, external factors such as vibration may cause the enameled coil to peel off, resulting in a short circuit. It can also prevent water from entering the valve body and causing the coil to short circuit and burn out.

[0033] Furthermore, the reverse actuator of the oil shut-off solenoid valve also includes a mounting bracket 9, with one end of the housing 6 away from the rear end cover 5 connected to the mounting bracket 9.

[0034] Furthermore, the frame 7 and the mounting bracket 9 are secured together with cable ties 10.

[0035] Furthermore, the hook 12 includes a connecting part and a pulling part. The connecting part is connected to the moving iron core 13, and the end away from the moving iron core is connected to the pulling part through the hexagonal seat 11.

[0036] Furthermore, a dust cover 16 is fitted on the outside of the spring 14.

[0037] It is understandable that the moving iron core 13 moves within the dust cover 16 under the action of magnetic attraction to compress or release the spring 14.

[0038] As can be seen from the above, this utility model sets the hook in the position where the oil circuit is connected when the car is ignited, and uses the power supply component to supply power to the enameled coil when the car is turned off, so that the moving iron core drives the hook to move, thereby closing the oil circuit. This ensures that the enameled coil is not energized when the car engine is running, and is only briefly energized when the car is turned off. This avoids the problem of the enameled coil overheating due to prolonged energization, increases the service life of the product, and saves the energy of the engine battery.

[0039] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise expressly specified and limited, the terms "installed," "connected," or "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two elements. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A reverse electronic actuator for a fuel pump cut-off solenoid valve, characterized in that, include: The system includes a power supply component, a rear end cover, a frame, an enameled coil, a hook, a moving iron core, and a spring. The enameled coil is wound around the frame. The rear end cover is located at one end of the frame. The two ends of the spring are respectively connected to the rear end cover and the moving iron core. One end of the hook passes through the enameled coil, the rear end cover, and the spring and is connected to the moving iron core. The power supply component is electrically connected to the enameled coil and is used to supply power to the enameled coil when the vehicle is turned off.

2. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 1, characterized in that: The power supply assembly includes a connector and a reverse actuator circuit board. The connector is used to electrically connect to the ignition circuit of the vehicle and to the reverse actuator circuit board, which is electrically connected to the enameled coil.

3. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 2, characterized in that: The reverse actuator circuit board is surrounded by an actuator housing.

4. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 2, characterized in that: The power supply component includes wires and a corrugated pipe. The wires are electrically connected to the connector and the corrugated pipe, respectively, and the corrugated pipe is electrically connected to the reverse actuator circuit board.

5. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 1, characterized in that: The reverse actuator of the oil cut-off solenoid valve also includes a housing, the frame and the enameled coil are both disposed inside the housing, and the rear end cover is connected to one end of the housing.

6. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 5, characterized in that: The housing is provided with a glue-filling hole.

7. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 5, characterized in that: The reverse actuator of the oil shut-off solenoid valve also includes a mounting bracket, and the end of the housing away from the rear end cover is connected to the mounting bracket.

8. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 7, characterized in that: The frame and the mounting bracket are fastened together with cable ties.

9. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 1, characterized in that: The hook includes a connecting part and a pulling part. The connecting part is connected to the moving iron core, and the end away from the moving iron core is connected to the pulling part through a hexagonal seat.

10. The reverse electronic actuator for a fuel pump cut-off solenoid valve as described in claim 1, characterized in that: A dust cover is fitted on the outside of the spring.

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