Fuel pump with static electricity guiding-out function

Abstract

The utility model discloses a fuel pump with a static electricity export function, which relates to the technical field of fuel pumps, and comprises a pump body, a filter, a pressure regulating valve, a support rod spring, a corrugated pipe and a permanent magnet motor are respectively arranged in the pump body, the corrugated pipe is a conductive corrugated pipe, and the corrugated pipe is electrically connected with the cathode of the permanent magnet motor through a lead. The device has the advantages that the conductive corrugated pipe is directly and electrically connected with the negative electrode of the permanent magnet motor, and the filter, the pressure regulating valve and the supporting rod spring are connected with the negative electrode of the permanent magnet motor through wires. Static electricity accumulated on all the components can be conducted to the negative electrode of the permanent magnet motor through the wire in time, so that the static electricity is effectively led out of the fuel pump, fire hazards and other dangers possibly caused by static electricity accumulation are avoided, meanwhile, bad influences of the static electricity on fuel system components are reduced, and the service life of a filter, a pressure regulating valve and other components is prolonged. And the overall stability and reliability of the fuel system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fuel pump technical field, concretely related to a fuel pump with static electricity leading out function. BACKGROUND

[0002] When the fuel pump works, the electric motor drives the pump body component to run, and the fuel is pumped out from the oil tank, filtered through the filter screen, pressurized through the pump body, delivered to the fuel system through the oil outlet, and fuel is provided for the engine.

[0003] At present, static electricity charge is accumulated in the fuel flowing process due to the friction between the fuel and the pipeline and the surface of the component. If the static electricity is not discharged in time, it may cause fire and other dangers, and also interferes with the electronic system and affects the quality of the fuel system components.

[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] For the problems in the related art, the purpose of the utility model is to provide a fuel pump with static electricity leading out function to overcome the above technical problems existing in the prior art.

[0006] The technical scheme of the utility model is as follows:

[0007] A fuel pump with static electricity leading out function comprises a pump body, a filter, a pressure regulating valve, a support rod spring, a corrugated pipe and a permanent magnet motor arranged in the pump body respectively, the corrugated pipe is a conductive corrugated pipe, and the corrugated pipe is electrically connected to the negative electrode of the permanent magnet motor through a wire.

[0008] Further, the material of the corrugated pipe is PA11 double-layer conductive material.

[0009] Further, the material of the corrugated pipe is conductive rubber.

[0010] Further, the material of the corrugated pipe is conductive plastic.

[0011] Further, the filter, the pressure regulating valve and the support rod spring are electrically connected to the negative electrode of the permanent magnet motor through wires respectively.

[0012] The utility model has the advantages of:

[0013] The utility model discloses a conductive bellows directly electrically connected with the negative pole of permanent magnet motor, and the filter, pressure regulating valve and support rod spring are also connected with the negative pole of permanent magnet motor through wires. The static electricity accumulated on each component can be conducted to the negative pole of permanent magnet motor in time through the wires, so that the fuel pump is effectively discharged, the fire and other dangers caused by the static electricity accumulation are avoided, meanwhile, the adverse effects of static electricity on the fuel system components are reduced, the service life of the filter, pressure regulating valve and other components is prolonged, and the overall stability and reliability of the fuel system are improved.

[0014] In addition, the PA11 double-layer conductive material bellows can not only meet the conductive requirement and realize static electricity discharge, but also can maintain good performance under the complex working environment of the fuel pump, and ensure long-term stable operation of the fuel pump.

[0015] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

[0016] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the following preferred embodiments are taken as examples, and the detailed description is made as follows with the aid of the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 is the structure diagram of the fuel pump with static electricity discharge function according to the embodiment of the utility model Figure 1 ;

[0019] Figure 2 is the internal schematic diagram of the fuel pump with static electricity discharge function according to the embodiment of the utility model Figure 1 ;

[0020] Figure 3 is the internal schematic diagram of the fuel pump with static electricity discharge function according to the embodiment of the utility model Figure 2 .

[0021] In the drawings:

[0022] 1, pump body;2, filter;3, pressure regulating valve;4, support rod spring;5, bellows;6, permanent magnet motor. DETAILED DESCRIPTION

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0024] According to an embodiment of the present invention, a fuel pump with electrostatic discharge function is provided.

[0025] like Figures 1-3 As shown, a fuel pump with electrostatic discharge function includes: a pump body 1, a filter 2, a pressure regulating valve 3, a support rod spring 4, a bellows 5 and a permanent magnet motor 6 respectively disposed inside the pump body 1, the bellows 5 being a conductive bellows, and the bellows 5 being electrically connected to the negative terminal of the permanent magnet motor 6 through a wire.

[0026] Among them, the material of the corrugated pipe 5 is PA11 double-layer conductive material.

[0027] In this technical solution, for the aforementioned PA11 double-layer conductive material, PA11 itself is a high-performance polyamide plastic with characteristics such as low water absorption, good oil resistance, low temperature resistance, and easy processing. It consists of a base layer and a conductive layer. The base layer is a pure PA11 layer; while the conductive layer is formed by adding a conductive agent to PA11. The conductive agent uses conductive fillers such as carbon fiber, carbon black, metal powder, and metal fiber.

[0028] The corrugated pipe 5 is made of conductive rubber.

[0029] Specifically, in applications, conductive materials such as carbon nanotubes and graphene can be added to the rubber matrix.

[0030] In addition, the corrugated pipe 5 is made of conductive plastic.

[0031] In application, this technical solution can make plastics conductive by adding conductive fillers such as carbon nanotubes, graphene, and metal powders, which has the advantages of being lightweight and having good formability.

[0032] In addition, the filter 2, pressure regulating valve 3 and support rod spring 4 are electrically connected to the negative pole of the permanent magnet motor 6 via wires.

[0033] With the help of the above solution, in a fuel pump with electrostatic discharge function, the fuel pump and the negative pole of the permanent magnet motor are connected by a wire to realize the function of electrostatic discharge, thereby ensuring the safe and stable operation of the fuel pump and the entire fuel system.

[0034] Specifically, the fuel pump works when the liquid flow generates static electricity, the conductive bellows perceives static electricity charges, and the conductive bellows conducts the static electricity out by using the conductive property. At the same time, the static electricity accumulated on the filter 2, the pressure regulating valve 3 and the support rod spring 4 is also introduced into the negative electrode of the permanent magnet motor 6 through the conductive wire connected therewith. Finally, the static electricity charges are conducted out of the fuel pump and discharged to the negative electrode of the power supply, thereby eliminating the static electricity hazard and ensuring the safe and stable operation of the fuel pump and the entire fuel system.

[0035] In summary, by means of the above technical scheme of the utility model, the following effects can be achieved: the conductive bellows is directly electrically connected with the negative electrode of the permanent magnet motor 6, and the filter 2, the pressure regulating valve 3 and the support rod spring 4 are also respectively connected with the negative electrode of the permanent magnet motor 6 through the conductive wire. The static electricity accumulated on each component can be conducted to the negative electrode of the permanent magnet motor 6 in time through the conductive wire, thereby effectively conducting the fuel pump out, avoiding the fire hazard caused by the accumulation of static electricity, reducing the adverse effects of static electricity on the components of the fuel system, prolonging the service life of the filter 2, the pressure regulating valve 3 and other components, and improving the overall stability and reliability of the fuel system.

[0036] In addition, the bellows 5 made of PA11 double-layer conductive material not only meets the conductive requirement to conduct the static electricity out, but also maintains good performance in the complex working environment of the fuel pump, thereby ensuring the long-term stable operation of the fuel pump.

[0037] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A fuel pump having an electrostatic discharge function, comprising: Pump body (1), the filter (2), pressure regulating valve (3), support rod spring (4), bellows (5) and permanent magnet motor (6) are equipped respectively in the pump body (1), characterized in that, the bellows (5) is conductive bellows, and the bellows (5) is electrically connected permanent magnet motor (6) negative pole by wire.

2. The fuel pump having electrostatic derivation function according to claim 1, wherein The material of the bellows (5) is PA11 double-layer conductive material.

3. The fuel pump having electrostatic derivation function according to claim 1, wherein The material of the bellows (5) is conductive rubber.

4. The fuel pump having electrostatic derivation function according to claim 1, wherein The material of the bellows (5) is conductive plastic.

5. The fuel pump having electrostatic discharge function according to claim 1, wherein The filter (2), the pressure regulating valve (3) and the support rod spring (4) are electrically connected permanent magnet motor (6) negative pole by wire respectively.

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