CN212774562U

CN212774562U - Fuel pump core structure

Info

Publication number: CN212774562U
Application number: CN202021439844.3U
Authority: CN
Inventors: 王刚
Original assignee: Chongqing Wanli Lianxing Industrial Group Co ltd
Current assignee: Chongqing Wanli Lianxing Industrial Group Co ltd
Priority date: 2020-07-21
Filing date: 2020-07-21
Publication date: 2021-03-23
Anticipated expiration: 2030-07-21

Abstract

The utility model provides a fuel pump core structure, which comprises a pump body cover, a casing and a rear cover, wherein a permanent magnet and a carbon brush fixing frame are arranged in the casing, a rotor is arranged in the permanent magnet, two ends of the rotor are respectively clamped in a central hole of the rear cover and a central hole of the carbon brush fixing frame, an oil outlet is arranged on the pump body cover, one surface of the rear cover is provided with an oil inlet, the other surface is provided with a roller which is used for being clamped with the casing, the carbon brush fixing frame is provided with a carbon brush hole for placing a carbon brush and a coil spring, an inductor is arranged beside the carbon brush hole, one end of the inductor is welded with the carbon brush, the other end of the inductor is welded with a power supply inserting sheet which is pressed on the carbon brush fixing frame, the utility model solves the problems of large noise and vibration caused by the traditional fixing mode, has, thereby optimizing the overall fuel pump space.

Description

Fuel pump core structure

Technical Field

The utility model relates to a fuel pump technical field, concretely relates to fuel pump core structure.

Background

Traditional fuel pump core structure adopts coil spring, torsional spring, the fixed carbon brush of jump ring to guarantee the carbon brush and rotor coil's stable connection, nevertheless above-mentioned traditional structure can not solve the power value release very well, leads to the carbon brush wearing and tearing too fast, the complete machine vibration is big, consequently, the current technical problem is waited for to solve urgently.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the embodiment of the utility model provides a fuel pump core structure, including pump body lid, casing and hou gai, inside permanent magnet and the carbon brush mount of being equipped with of casing, the inside rotor that is equipped with of permanent magnet, the rotor both ends are blocked respectively back lid centre bore with on the carbon brush mount centre bore, the pump body is covered and is equipped with the oil-out.

Furthermore, one side of the rear cover is provided with an oil inlet, and the other side of the rear cover is provided with a roller which is used for being clamped with the machine shell.

Furthermore, carbon brush holes for placing the carbon brushes and the coil springs are formed in the carbon brush fixing frame, an inductor is arranged beside the carbon brush holes, one end of the inductor is welded with the carbon brushes, and the other end of the inductor is welded with a power supply insertion piece pressed on the carbon brush fixing frame in a pressing mode.

Furthermore, the carbon brush hole, the inductor and the power supply insertion sheet are provided with two groups.

Furthermore, one end of the coil spring is bent to form a barb.

Furthermore, the concave part of the barb is provided with a limiting hole, and the carbon brush fixing frame is provided with a limiting column which can be matched with the limiting hole, so that the carbon brush is fixed in the carbon brush hole.

The utility model has the advantages that:

the utility model discloses a design the fixed carbon brush of wind spring, it is big to have solved noise, vibration that traditional fixed mode caused, and life is longer moreover, and in addition, the wind spring is compared traditional spring space and is taken for a short time to optimize the whole space of fuel pump.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of a fuel pump core structure in an embodiment of the present invention.

Fig. 2 is a schematic structural view of a carbon brush holder according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a coil spring structure in an embodiment of the present invention.

Fig. 4 is a schematic diagram of the installation of a coil spring in an embodiment of the invention.

Reference numerals: 10-pump body cover, 11-oil outlet, 20-machine shell, 30-rear cover, 31-oil inlet, 32-roller, 40-permanent magnet, 50-carbon brush fixing frame, 51-carbon brush, 52-coil spring, 521-barb, 522-limiting hole, 523-limiting column, 53-carbon brush hole, 54-inductor, 55-power supply insertion sheet and 60-rotor.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1-4, fig. 1 is a schematic structural diagram of a fuel pump core structure in an embodiment of the present invention. The fuel pump core structure comprises a pump body cover 10, a machine shell 20 and a rear cover 30, wherein a permanent magnet 40 and a carbon brush fixing frame 50 are arranged inside the machine shell 20, a rotor 60 is arranged inside the permanent magnet 40, two ends of the rotor 60 are clamped in a central hole of the rear cover 30 and a central hole of the carbon brush fixing frame 50 respectively, and an oil outlet 11 is formed in the pump body cover 10.

In some preferred embodiments, the rear cover 30 has an oil inlet 31 on one side and a roller 32 on the other side for engaging with the housing 20.

In some preferred embodiments, the carbon brush holder 50 is provided with a carbon brush hole 53 for accommodating the carbon brush 51 and the coil spring 52, an inductor 54 is provided beside the carbon brush hole 53, one end of the inductor 54 is welded to the carbon brush 51, and the other end of the inductor 54 is welded to a power plug 55 press-fitted on the carbon brush holder 50.

In some preferred embodiments, there are two sets of the carbon brush hole 53, the inductor 54 and the power insert 55.

In other preferred embodiments, one end of the coil spring 52 is bent to form a barb 521.

In some preferred embodiments, the barb 521 is recessed with a limiting hole 522, and the carbon brush fixing frame 50 is provided with a limiting post 523 adapted to the limiting hole 522, so that the carbon brush 51 is fixed in the carbon brush hole 53.

The utility model discloses a theory of operation is:

the permanent magnet 40 is pressed into the machine shell 20, and one end of the machine shell is provided with a carbon brush fixing frame 50; pressing in a pump body cover 10 with an oil outlet 11, inserting a rotor 60, and pressing in a rear cover 30 with a roller 32, wherein the rotor 60 uses a hole on a carbon brush fixing frame 50 and a hole on the rear cover 30 as a rotation fulcrum, and rotating, riveting and sealing edges are carried out on a casing 20 after press-fitting to form a fuel pump core;

one end of the coil spring 52 is bent to form the inverted hook 521, so that one end of the coil spring 52 can be inserted into a gap between the carbon brush 51 and the carbon brush hole 53, the space occupancy rate of the coil spring 52 is reduced, the coil spring 52 is fixed through the inverted hook 521 and the limiting hole 522, the carbon brush 51 is stably fixed in the carbon brush hole 53, the abrasion degree of the carbon brush 51 can be reduced through the fixing mode, and the service life of the carbon brush 51 is prolonged.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.

Claims

1. The utility model provides a fuel pump core structure, includes pump body lid (10), casing (20) and back lid (30), its characterized in that: the motor is characterized in that a permanent magnet (40) and a carbon brush fixing frame (50) are arranged inside the machine shell (20), a rotor (60) is arranged inside the permanent magnet (40), two ends of the rotor (60) are clamped in a center hole of the rear cover (30) and a center hole of the carbon brush fixing frame (50) respectively, and an oil outlet (11) is formed in the pump body cover (10).

2. A fuel pump cartridge structure as set forth in claim 1, wherein: one side of the rear cover (30) is provided with an oil inlet (31), and the other side is provided with a roller (32) which is clamped with the shell (20).

3. A fuel pump cartridge structure as set forth in claim 2, wherein: the carbon brush fixing frame (50) is provided with a carbon brush hole (53) used for containing a carbon brush (51) and a coil spring (52), an inductor (54) is arranged beside the carbon brush hole (53), one end of the inductor (54) is welded with the carbon brush (51), and the other end of the inductor (54) is welded with a power supply inserting piece (55) pressed on the carbon brush fixing frame (50).

4. A fuel pump cartridge structure as set forth in claim 3, wherein: and two groups of carbon brush holes (53), an inductor (54) and a power supply inserting sheet (55) are arranged.

5. A fuel pump cartridge structure as set forth in claim 4, wherein: one end of the coil spring (52) is bent to form a barb (521).

6. A fuel pump cartridge structure as set forth in claim 5, wherein: the concave part of the inverted hook (521) is provided with a limiting hole (522), and the carbon brush fixing frame (50) is provided with a limiting column (523) which can be matched with the limiting hole (522), so that the carbon brush (51) is fixed in the carbon brush hole (53).