Brush pump applied to alcohol fuel

Abstract

The utility model discloses a brush pump applied to alcohol fuel. The brush pump comprises a pole shell and a brush, a part of structure of the oil outlet component extends into the pole shell; the oil outlet component comprises an electric brush and a wire harness component, the wire harness component is connected with the electric brush, and the joint of the wire harness component and the electric brush is sealed through injection molding of an alcohol-resistant material; the pump chamber is arranged in the pole shell; the rotor assembly is arranged in the pole shell; the turbine is arranged in the pump chamber; the pump cover is arranged on the outer side of the pump chamber; the plurality of magnetic steels are arranged in the pole shell; and the supporting sheet is connected with the magnetic steel. Through the application of the brush pump applied to the alcohol fuel, the brush pump applied to the alcohol fuel is suitable for both automotive gasoline and alcohol gasoline, the pump body does not need to be replaced when the fuel is replaced, the fuel is convenient to replace, the use cost and the maintenance difficulty are reduced, and the pump can still keep safe and stable oil supply capacity in the alcohol fuel environment. Oil supply interruption of the oil pump and potential safety hazards are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a brush pump technical field especially, it relates to a kind of brush pumps applied to alcohol-based fuel. BACKGROUND

[0002] Brush pump plays a vital role in automobile fuel system, brush pump is installed on the bracket of fuel pump assembly, the core working principle of brush pump relies on the rotation of motor, through the linkage between brush and armature, drive the turbine rotation in pump body, generate enough centrifugal force to extract and transport fuel to fuel pipeline.In this process, the connection quality of brush and armature and the corrosion resistance of material directly affect the performance and life of pump.

[0003] The current brush pump pump core assembly, brush connection is not treated specially, leading to corrosion phenomenon in alcohol-based fuel, when connection is seriously corroded, it can cause brush and armature to contact badly, thereby causing oil pump to stop supplying oil, leading to engine cannot work normally, corrosion can also cause excessive current, short circuit, and further cause fire risk, even cause oil tank explosion;The current brush pump pump core assembly harness and other components are connected by welding, and the harness welding portion is easily aged and peeled under the erosion of alcohol-based fuel, which affects the stability of power supply, and the harness sheath is eroded in alcohol-based fuel, which can cause electric leakage, thereby causing fire and more serious safety accidents. SUMMARY

[0004] Therefore, to solve the above problems, the purpose of the utility model is to provide a kind of brush pump applied to alcohol-based fuel, comprising:

[0005] Pole shell;

[0006] Oil outlet component, the oil outlet component is arranged at one end of the pole shell, and part of the structure of the oil outlet component extends into the pole shell;The oil outlet component includes brush and harness component, one end of the harness component is connected with the brush, the other end of the harness component penetrates the pole shell, and the connection between the harness component and the brush is sealed by alcohol-resistant material injection molding;

[0007] Pump chamber, the pump chamber is arranged at the other end of the pole shell, and the pump chamber is arranged in the pole shell;

[0008] Rotor assembly, the rotor assembly is arranged in the pole shell and located between the oil outlet component and the pump chamber;

[0009] Turbine, the turbine is arranged in the pump chamber;

[0010] Pump cover, the pump cover is arranged on the outer side of the pump chamber, and the pump cover is arranged on the side of the pump chamber away from the oil outlet component;

[0011] magnetic steel, a plurality of the magnetic steel is arranged in the pole shell, a plurality of the magnetic steel is arranged in a ring shape, and the rotor assembly is arranged at the center of the magnetic steel;

[0012] a supporting piece, the supporting piece is in interference fit with the pump chamber, and the supporting piece is connected with the magnetic steel.

[0013] In another preferred embodiment, the oil outlet component further comprises an oil outlet seat body, a check valve component, an O-ring, and a pressure relief valve component, the check valve component is arranged in the oil outlet seat body, the pressure relief valve component is arranged on one side of the check valve component, the outer edge of the check valve component is provided with the O-ring, the electric brush is arranged at one end of the pressure relief valve component, and the wire harness component penetrates through the oil outlet seat body.

[0014] In another preferred embodiment, the rotor assembly comprises a rotating shaft and a magnet, the magnet is fixed on the rotating shaft, and one end of the rotating shaft penetrates through the pump chamber and is fixedly connected with the turbine.

[0015] In another preferred embodiment, a bearing is arranged in the pump chamber, the bearing is arranged on both sides of the turbine respectively together with the pump cover, and the bearing is sleeved on the outer periphery of the rotating shaft.

[0016] In another preferred embodiment, the check valve component comprises a check valve spring, a check valve body, and a check valve seat, one end of the check valve body is connected with the check valve spring, one end of the check valve spring is connected with the inner wall of the oil outlet seat body, the other end of the check valve body abuts against the check valve seat, and the O-ring is arranged on the outer edge of the check valve seat.

[0017] In another preferred embodiment, the pressure relief valve component comprises a pressure relief valve spring, a steel ball, and a pressure relief valve seat, one end of the steel ball is connected with the pressure relief valve spring, one end of the pressure relief valve spring is connected with the inner wall of the oil outlet seat body, and the other end of the steel ball abuts against the pressure relief valve seat.

[0018] In another preferred embodiment, a nickel plating layer is arranged on the surface of the pole shell.

[0019] In another preferred embodiment, the outer sheath of the wire harness component is made of alcohol-resistant material.

[0020] The utility model discloses a kind of application in alcohol fuel's brush pump, which is suitable for gasoline for vehicle and alcohol gasoline, and pump body does not need to be replaced when replacing fuel, which facilitates fuel replacement, reduces use cost and maintenance difficulty, and the pump can still maintain safe and stable oil supply capacity under alcohol fuel environment, avoiding oil pump oil supply interruption and potential safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure section schematic view of the brush pump of the utility model applied to alcohol fuel;

[0022] Figure 2 It is a structure section schematic view of the oil outlet component of the brush pump of the utility model applied to alcohol fuel.

[0023] In the drawings:

[0024] 1, pole shell;2, oil outlet component;3, pump chamber;4, rotor assembly;5, turbine;6, pump cover;7, magnetic steel;8, bracing piece;9, brush;10, wire harness component;11, oil outlet seat body;12, check valve component;13, O ring;14, pressure relief valve component;15, check valve spring;16, check valve body;17, check valve seat;18, pressure relief valve spring;19, steel ball;20, pressure relief valve seat. DETAILED DESCRIPTION

[0025] The technical solutions of the utility model will be described clearly and completely in combination with the drawings, obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0026] In the description of the utility model, it is understood that the orientation or position relationship indicated by "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "horizontal", "vertical" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, so it cannot be understood as a limitation on the utility model.

[0027] It needs to be specially pointed out that "horizontal" and "vertical" in the utility model are used to explain approximate position relationship, and not strict "horizontal plane" or "vertical plane".

[0028] As shown in Figure 1 The brush pump applied to alcohol fuel of a preferred embodiment is shown, which comprises:

[0029] pole shell 1;

[0030] outlet component 2, the outlet component 2 is arranged at one end of the pole shell 1, and part of the structure of the outlet component 2 extends into the pole shell 1; the outlet component 2 comprises a brush 9 and a wire harness component 10, one end of the wire harness component 10 is connected with the brush 9, the other end of the wire harness component 10 penetrates through the pole shell 1, and the connection between the wire harness component 10 and the brush 9 is sealed by injection molding of alcohol-resistant material to prevent the pin from being corroded and broken by alcohol fuel and losing the conductive effect;

[0031] pump chamber 3, the pump chamber 3 is arranged at the other end of the pole shell 1 and in the pole shell 1;

[0032] rotor assembly 4, the rotor assembly 4 is arranged in the pole shell 1 and between the outlet component 2 and the pump chamber 3;

[0033] turbine 5, the turbine 5 is arranged in the pump chamber 3;

[0034] pump cover 6, the pump cover 6 is arranged outside the pump chamber 3, and the pump cover 6 is arranged on the side of the pump chamber 3 away from the outlet component 2;

[0035] magnetic steel 7, a plurality of magnetic steels 7 are arranged in the pole shell 1, the magnetic steels 7 are arranged on the inner wall of the pole shell 1, the plurality of magnetic steels 7 are distributed in a ring shape, and the rotor assembly 4 is arranged at the center of the magnetic steels 7;

[0036] supporting sheet 8, the supporting sheet 8 is in interference fit with the pump chamber 3, and the supporting sheet 8 is connected with the magnetic steel 7.

[0037] Further, as a preferred embodiment, current from an external power source enters the pole shell 1 through the wire harness component 10 and flows to the brush 9, the brush 9 is in electrical contact with the rotor assembly 4 under the action of the current, an electromagnetic field is formed, the rotor assembly 4 is driven to rotate, with the rotation of the rotor assembly 4, the rotor assembly 4 interacts with the magnetic steel 7, and then the turbine 5 starts to work, the high-speed rotation of the turbine 5 causes the fuel in the pump chamber 3 to be sucked in under the action of centrifugal force and then flows out through the outlet component 2.

[0038] Further, as a preferred embodiment, one end of the supporting sheet 8 is in interference fit with the pump chamber 3, the supporting sheet 8 is in interference fit with the pump chamber 3, which is beneficial to improve the structural stability of the whole pump and prevent damage caused by vibration during operation, and the other end of the supporting sheet 8 is connected with the magnetic steel 7 for supporting the magnetic steel 7.

[0039] Further, as a preferred embodiment, the oil outlet component 2 further comprises an oil outlet base body 11, a check valve component 12, an O-ring 13 and a pressure relief valve component 14, the check valve component 12 is arranged in the oil outlet base body 11, the pressure relief valve component 14 is arranged at one side of the check valve component 12, the O-ring 13 is arranged at the outer edge of the check valve component 12, the brush 9 is arranged at one end of the pressure relief valve component 14, and the wiring harness component 10 penetrates through the oil outlet base body 11.

[0040] Further, as a preferred embodiment, the O-ring 13 is made of corrosion-resistant and wear-resistant material to adapt to different types of fuel and avoid aging and failure caused by the chemical properties of the fuel. Further, the O-ring 13 is used to ensure the sealing between the check valve component 12 and the oil outlet base body 11 to prevent oil leakage.

[0041] Further, as a preferred embodiment, the rotor assembly 4 comprises a rotating shaft and a magnet, the magnet is fixed on the rotating shaft, and one end of the rotating shaft penetrates through the pump chamber 3 and is fixedly connected with the turbine 5. Further, the rotating shaft is used to drive the turbine 5 to rotate, and the rotation of the turbine 5 makes the fuel enter the pump chamber 3 and accelerate in the pump chamber 3 and then be pressed out of the pump chamber 3.

[0042] Further, as a preferred embodiment, a bearing is arranged in the pump chamber 3, the bearing is arranged at both sides of the turbine 5 respectively with the pump cover 6, and the bearing is sleeved on the outer periphery of the rotating shaft. Further, the bearing is used to provide support for the rotating shaft.

[0043] Further, as a preferred embodiment, the check valve component 12 comprises a check valve spring 15, a check valve body 16 and a check valve seat 17, one end of the check valve body 16 is connected with the check valve spring 15, one end of the check valve spring 15 is connected with the inner wall of the oil outlet base body 11, the other end of the check valve body 16 abuts against the check valve seat 17, and the O-ring 13 is arranged at the outer edge of the check valve seat 17. Further, the check valve component 12 is used to prevent backflow of oil when the pump stops running, ensure that the fuel always flows towards the engine, and avoid pressure loss of the delivery system.

[0044] Further, as a preferred embodiment, when the pump stops working, the flow pressure of the fuel will gradually decrease and even disappear, in this case, the elastic force of the check valve spring 15 will push the check valve body 16 to move towards the check valve seat 17 until the check valve body 16 is tightly combined with the check valve seat 17 to form a seal.

[0045] Further, as a preferred embodiment, the pressure relief valve component 14 comprises a pressure relief valve spring 18, a steel ball 19 and a pressure relief valve seat 20, one end of the steel ball 19 is connected with the pressure relief valve spring 18, one end of the pressure relief valve spring 18 is connected with the inner wall of the oil outlet seat body 11, and the other end of the steel ball 19 abuts against the pressure relief valve seat 20. Further, the pressure relief valve component 14 is used to adjust and release the excessive pressure in the system, and ensure that the oil outlet component 2 works within a certain safe pressure range, thereby protecting the safety of the entire system.

[0046] Further, as a preferred embodiment, when the pressure of the fuel in the oil outlet seat body exceeds the spring force of the pressure relief valve spring 18, the steel ball 19 will be forced to leave the pressure relief valve seat 20, at this time the fuel flows out through the pressure relief valve component 14, and when the pressure of the fuel returns to the safe range, the steel ball 19 will return to the original position under the action of the pressure relief valve spring 18, and abut against the pressure relief valve seat 20 again, so as to prevent the fuel from flowing out from the pressure relief valve component 14.

[0047] Further, as a preferred embodiment, a nickel plating layer is arranged on the surface of the pole shell 1, which can reduce the risk of corrosion of the pump core shell by alcohol-based fuel.

[0048] Further, as a preferred embodiment, the outer sheath of the wire harness component 10 is made of alcohol-resistant material.

[0049] The above only describes the preferred embodiments of the present application, and does not limit the implementation and protection scope of the present application. For those skilled in the art, it should be realized that any equivalent replacement and obvious changes made according to the content of the present application should be included in the protection scope of the present application.

Claims

1. A brushed pump for use with alcohol fuels, characterized in that, include: polar shell; An oil outlet component is disposed at one end of the electrode housing, and a portion of the structure of the oil outlet component extends into the electrode housing; the oil outlet component includes a brush and a wiring harness component, one end of the wiring harness component is connected to the brush, the other end of the wiring harness component penetrates the electrode housing, and the connection between the wiring harness component and the brush is sealed by injection molding with an alcohol-resistant material; Pump chamber, the pump chamber being disposed at the other end of the pole housing, the pump chamber being disposed inside the pole housing; rotor assembly, the rotor assembly being disposed inside the pole housing and located between the oil outlet component and the pump chamber; A turbine, wherein the turbine is disposed within the pump chamber; A pump cover is disposed on the outside of the pump chamber, on the side of the pump chamber away from the oil outlet component; A plurality of magnets are disposed within the pole housing, the plurality of magnets being arranged in a ring, and the rotor assembly being disposed at the center of the magnets; The support plate is interference-fitted with the pump chamber and connected to the magnet.

2. The brushed pump for alcohol fuels according to claim 1, characterized in that, The oil outlet component further includes: an oil outlet seat body, a check valve component, an O-ring, and a pressure relief valve component. The check valve component is disposed within the oil outlet seat body, and the pressure relief valve component is disposed on one side of the check valve component. The O-ring is disposed on the outer edge of the check valve component. The brush is disposed at one end of the pressure relief valve component, and the wiring harness component passes through the oil outlet seat body.

3. The brushed pump for alcohol fuels according to claim 1, characterized in that, The rotor assembly includes a shaft and a magnet, the magnet being fixed to the shaft, one end of the shaft passing through the pump chamber and being fixedly connected to the turbine.

4. The brushed pump for alcohol fuels according to claim 3, characterized in that, A bearing is installed in the pump chamber, and the bearing and the pump cover are respectively located on both sides of the turbine. The bearing is sleeved on the outer circumference of the rotating shaft.

5. The brushed pump for alcohol fuels according to claim 2, characterized in that, The check valve component includes: a check valve spring, a check valve body, and a check valve seat. One end of the check valve body is connected to the check valve spring, one end of the check valve spring is connected to the inner wall of the oil outlet seat body, and the other end of the check valve body abuts against the check valve seat. The O-ring is disposed on the outer edge of the check valve seat.

6. The brushed pump for alcohol fuels according to claim 2, characterized in that, The pressure relief valve component includes: a pressure relief valve spring, a steel ball, and a pressure relief valve seat. One end of the steel ball is connected to the pressure relief valve spring, one end of the pressure relief valve spring is connected to the inner wall of the oil outlet seat body, and the other end of the steel ball abuts against the pressure relief valve seat.

7. The brushed pump for alcohol fuels according to claim 1, characterized in that, The surface of the electrode shell is provided with a nickel plating layer.

8. The brushed pump for alcohol fuels according to claim 1, characterized in that, The outer sheath of the wire harness component is made of an alcohol-resistant material.

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