A high-efficiency electromagnetic automobile fuel pump

Abstract

The utility model provides a kind of high-efficiency heating electromagnetic automobile fuel pump, including pump shell, piston core and electromagnetic coil winding component being arranged in pump shell, electromagnetic coil winding component includes coil holder and enameled wire around the outside of coil holder, enameled wire is directly around the outside of winding tube piece of coil holder or indirectly around the outside of winding tube piece of coil holder by insulating spacer, it further includes several winding assembly, winding assembly is arranged on winding tube piece and can increase the winding outer diameter of winding tube piece, the outer periphery of winding tube piece is provided with several positioning components distributed in the length direction of winding tube piece, and positioning component is used to quickly limit the assembly position of winding assembly on winding tube piece.The utility model has the beneficial effect that the position of the winding space of enameled wire can be increased more, so that the overall winding number of turns is more, the enameled wire length is longer, a stronger electromagnetic force can be obtained, so that the heating effect is faster.

Description

Technical Field

[0001] This utility model relates to the field of automotive fuel pump technology, and in particular to a high-efficiency heated electromagnetic automotive fuel pump. Background Technology

[0002] An electromagnetic fuel pump is a fundamental component of the fuel injection system in electronically controlled fuel injection vehicles. Immersed in fuel within the fuel tank, its function is to pressurize the fuel and continuously pump it into the fuel supply lines, providing the fuel system with sufficient pressurized fuel. Furthermore, its heating efficiency depends on the electromagnetic force, the magnitude of which in turn depends on the number of turns of the enameled wire.

[0003] Publication No. CN210164617U discloses an electromagnetic automotive oil pump, comprising: a pump housing, a piston core disposed within the pump housing, and an electromagnetic coil winding component. The electromagnetic coil winding component includes a coil frame and enameled wire wound around the outside of the coil frame. The coil frame includes a winding tube, which is either a copper or aluminum tube. The enameled wire is wound directly around the outside of the winding tube or indirectly around the outside of the winding tube via an insulating layer. This electromagnetic automotive oil pump improves product yield by directly winding the enameled wire around the outside of the winding tube or by providing an insulating layer on the outside of the winding tube, eliminating the need for a plastic wire frame. However, due to the limitations of the frame design, the number of turns of the enameled wire is limited, and since the electromagnetic force depends on the number of turns of the enameled wire, the electromagnetic force is relatively small.

[0004] Publication (Announcement) No.: CN212900020U discloses an automotive high-pressure oil pump coil, including a frame. The upper end of the inner wall of the frame is provided with a positioning step. The upper end of the frame is provided with a first rib. The lower end of the frame is provided with a second rib. The outer wall of the frame is provided with a first annular step groove. The outer wall of the frame is provided with a second annular step groove. Enamelled wire is in contact with the interior of the first annular step groove and the second annular step groove. A hollow channel is opened inside the frame. The exterior of the frame is covered with plastic by injection molding. An extension is fixedly connected to the left side of the plastic coating. The extension has a slot inside. A wiring port is provided in the slot. A wiring terminal is installed on the left side of the wiring port. This type of automotive high-pressure oil pump coil increases the winding space of the enameled wire by setting a first annular stepped groove and a second annular stepped groove on the outer wall of the frame, allowing for a greater number of turns of the enameled wire and a longer length, thus ensuring that the electromagnetic force meets the usage requirements. However, there is a drawback: the first and second annular stepped grooves are fixedly set on the frame, which means that the positions and numbers of spaces that can be added to increase the winding space of the enameled wire are fixed. This makes it impossible to add more spaces to increase the winding space of the enameled wire, and also limits the magnitude of the electromagnetic force. Utility Model Content

[0005] This invention aims to overcome the shortcomings of the prior art by providing a high-efficiency heated electromagnetic automotive fuel pump to solve the aforementioned problems.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: This high-efficiency heated electromagnetic automotive fuel pump includes a pump housing, a piston core disposed inside the pump housing, and an electromagnetic coil winding component. The electromagnetic coil winding component includes a coil frame and enameled wire wrapped around the outside of the coil frame. The enameled wire is directly wound around the outside of the winding tube of the coil frame or indirectly wound around the outside of the winding tube of the coil frame through an insulating layer. It also includes several winding assemblies. The winding assemblies are disposed on the winding tube and can increase the outer diameter of the winding tube. Several positioning components are arranged in an array along the length direction of the winding tube on the outer circumferential surface of the winding tube. The positioning components are used to quickly define the assembly position of the winding assemblies on the winding tube.

[0007] Further improvements include two connecting blocks, which are fan-shaped with positioning inserts that combine with the positioning component on their inner circumferential surfaces. After combination, the inner circumferential surfaces of the connecting blocks fit against the outer circumferential surfaces of the winding tube, and the two connecting blocks are symmetrically distributed on both sides.

[0008] Further improvements include a greater number of positioning components on the winding tube than the number of winding components. These components include two positioning slots symmetrically distributed on both sides of the winding tube. The positioning slots are divided into a sliding section and a locking section along the assembly guide. The positioning inserts are clearance-fitted with the sliding section and interference-fitted with the locking section.

[0009] Further improvements were made, with the mating gap between the positioning slot and the positioning block gradually decreasing along the assembly guide.

[0010] Further improvements include the addition of extension arms on both sides of the connecting block. The extension arm of one connecting block in the same group is located at the upper middle position, while the extension arm of the other connecting block is located at the lower middle position. This allows the two extension arms to be stacked vertically when both connecting blocks are simultaneously mounted on the winding tube. A locking socket is provided at the end of the connecting block where the extension arm is not mounted. The locking socket contains a locking component that can act on both locking sockets simultaneously to prevent the connecting block from detaching from the winding tube after locking.

[0011] Further improvements include a locking assembly comprising a bolt and a nut, with the bolt's shank passing through a locking socket and the nut mounted on the bolt.

[0012] Further improvements include the addition of symmetrically distributed wire-locking grooves on the outer periphery of one of the connecting blocks, with guide grooves on both the bottom and top surfaces of the connecting block.

[0013] The beneficial effects of this utility model are:

[0014] This invention increases the outer diameter of the winding tube by adding a winding assembly. When forming the electromagnetic coil winding component, the number of winding assemblies can be selected according to the usage requirements, which makes the selection more flexible. It also allows for more turns of the enameled wire and a longer enameled wire length, resulting in a stronger electromagnetic force and faster heating effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the winding assembly and locking assembly of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings:

[0018] Referring to the attached diagram: This high-efficiency heated electromagnetic automotive fuel pump includes a pump housing, a piston core disposed within the pump housing, and an electromagnetic coil winding component. The electromagnetic coil winding component includes a coil frame 1 and enameled wire wrapped around the outside of the coil frame 1. The enameled wire is directly wound around the outside of the winding tube 11 of the coil frame 1 or indirectly wound around the outside of the winding tube 11 of the coil frame 1 through an insulating layer. It also includes several winding assemblies 2, which are disposed on the winding tube 11 and can increase the outer diameter of the winding tube 11. Several positioning components 3 are arranged in an array along the length direction of the winding tube 11 on the outer circumferential surface of the winding tube 11. The positioning components 3 are used to quickly define the assembly position of the winding components 2 on the winding tube 11. The principle of this invention is that the winding assembly 2 increases the outer diameter of the winding tube 11, and the winding assembly 2 is detachably connected. That is, when forming the electromagnetic coil winding component, the number of winding assemblies 2 can be selected according to the usage requirements. There are multiple positioning components 3 formed on the winding tube 11, and the number of winding assemblies 2 combined with the positioning components 3 can be selected according to the usage requirements. They can be the same number as the positioning components 3 or less. This makes the selection more flexible, and at the same time, it can also make the enameled wire have more turns and a longer length, so as to obtain a stronger electromagnetic force.

[0019] The winding assembly 2 includes two connecting blocks 21, which are fan-shaped. The inner circumferential surface of the connecting blocks 21 is provided with positioning inserts 211 that combine with the positioning assembly 3. After combination, the inner circumferential surface of the connecting blocks 21 fits against the outer circumferential surface of the winding tube 11. The two connecting blocks 21 are symmetrically distributed on both sides. The connecting blocks 21 are set on the winding tube 11 by insertion through the positioning inserts 211, which enables quick assembly. The fan-shaped configuration of the connecting blocks 21 makes both the inner and outer circumferential surfaces arc-shaped. The arc-shaped inner circumferential surface can fit more tightly with the winding tube 11, while the arc-shaped outer circumferential surface facilitates the winding of the enameled wire, making the overall appearance neat after the enameled wire is wound.

[0020] The positioning component 3 includes two positioning slots 31 symmetrically distributed on both sides of the winding tube 11. The positioning block 211 is divided into a sliding section 2111 and a locking section 2112 along the assembly guide. The positioning slot 31 and the sliding section 2111 are clearance-fitted, and the locking section 2112 is interference-fitted. The positioning block 211 can be inserted into the positioning slot 31 by the sliding section 2111. When the positioning block 211 is fully inserted into the positioning slot 31, the locking section 2112 and the locking section 2112 are interference-fitted, so that the positioning block 211 is locked in the positioning slot 31, thereby completing the assembly connection between the connecting block 21 and the winding tube 11. This connection assembly does not require tools or additional parts such as screws, and is suitable for quick and convenient assembly.

[0021] The mating gap between the positioning slot 31 and the positioning block 211 gradually decreases along the assembly guide, that is, the change of the positioning block 211 from the sliding section 2111 to the locking section 2112 is linear, which makes the insertion process more stable and can avoid jamming during connection and assembly.

[0022] Extension arms 212 are provided on both sides of the connecting block 21. The extension arm 212 of one connecting block 21 in the same group is located at the upper middle position, and the extension arm 212 of the other connecting block 21 is located at the lower middle position, so that when the two connecting blocks 21 are simultaneously set on the winding tube 11, the two extension arms 212 are stacked vertically. A locking hole 2121 is provided at the end of the connecting block 21 where the extension arm 212 is not located. A locking component 4 is provided in the locking hole 2121, which can act on both locking holes 2121 simultaneously, so as to prevent the connecting block 21 from disengaging from the winding tube after locking. 11. When both connecting blocks 21 in the same group are set on the winding tube 11, the two extension arms 212 of the two connecting blocks 21 on the same side are stacked together, and their corresponding locking holes 2121 are also coaxially arranged. In this way, the locking component 4 can act on the two locking holes 2121 at the same time. Under the constraint of the locking component 4, the two locking holes 2121 always remain coaxially arranged and cannot be offset. Therefore, the positioning block 211 cannot be disengaged from the positioning slot 31, and the connecting block 21 is also prevented from disengaging from the winding tube 11, so that the connecting block 21 always remains on the winding tube 11.

[0023] The locking assembly 4 includes a bolt 41 and a nut 42. The shank of the bolt 41 passes through the locking socket 2121, and the nut 42 is mounted on the bolt 41. The shank of the bolt 41 has a length that passes through both locking sockets 2121 at the same time, and also has a length that connects with the nut 42 after passing through both locking sockets 2121. The locking method is simple, and the nut 42 can be rotated. The locking effect is good.

[0024] One of the connecting blocks 21 has symmetrically distributed wire-clamping grooves 213 on its outer peripheral surface. The wire-clamping grooves 213 also have guide grooves 2131 on the bottom and top surfaces of the connecting block 21. When the enameled wire is wound from the winding tube 11 to the connecting block 21 or from the connecting block 21 to the winding tube 11, it needs to bend and change direction. The wire-clamping grooves 213 are used to clamp and limit the bending point of the enameled wire, which provides better constraint on the enameled wire during transposition and winding, and the enameled wire will not slip or become uncontrollable. The guide grooves 2131 provide straight guidance after the enameled wire is bent, guiding the enameled wire toward the connecting block 21 or the winding tube 11. The grooves also have a clamping and constraining effect on the enameled wire. This design facilitates transposition and winding.

[0025] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A high-efficiency heated electromagnetic automotive fuel pump, comprising a pump housing, a piston core disposed within the pump housing, and an electromagnetic coil winding assembly, wherein the electromagnetic coil winding assembly comprises a coil frame (1) and enameled wire wound around the outside of the coil frame (1), the enameled wire being directly wound around the outside of the winding tube (11) of the coil frame (1) or indirectly wound around the outside of the winding tube (11) of the coil frame (1) through an insulating layer, characterized in that: It also includes several winding assemblies (2), which are disposed on the winding tube (11) and can increase the outer diameter of the winding tube (11). Several positioning components (3) are arranged in an array along the length direction of the winding tube (11) on the outer peripheral surface of the winding tube (11). The positioning components (3) are used to quickly define the assembly position of the winding assembly (2) on the winding tube (11).

2. The high-efficiency heated electromagnetic automotive fuel pump according to claim 1, characterized in that: The winding assembly (2) includes two connecting blocks (21). The connecting blocks (21) are fan-shaped, and a positioning plug (211) that is combined with the positioning assembly (3) is provided on its inner circumferential surface. After the combination, the inner circumferential surface of the connecting block (21) is in contact with the outer circumferential surface of the winding tube (11), and the two connecting blocks (21) are symmetrically distributed on both sides.

3. The high-efficiency heated electromagnetic automotive fuel pump according to claim 2, characterized in that: The number of positioning components (3) on the winding tube (11) is greater than the number of winding components (2). It includes two positioning slots (31) on the winding tube (11) and symmetrically distributed on both sides. The positioning blocks (211) are divided into sliding sections (2111) and locking sections (2112) along the assembly guide. The positioning slots (31) and the sliding sections (2111) are clearance fit, and the locking sections (2112) are interference fit.

4. The high-efficiency heated electromagnetic automotive fuel pump according to claim 3, characterized in that: The mating gap between the positioning slot (31) and the positioning plug (211) gradually decreases along the assembly guide.

5. The high-efficiency heated electromagnetic automotive fuel pump according to claim 2, characterized in that: Extension arms (212) are provided on both sides of the connecting block (21). The extension arm (212) of one of the connecting blocks (21) in the same group is located at the upper middle position, and the extension arm (212) of the other connecting block (21) is located at the lower middle position, so that when the two connecting blocks (21) are simultaneously placed on the winding tube (11), the two extension arms (212) are stacked vertically. The end of the extension arm (212) not placed on the connecting block (21) is provided with a locking hole (2121). The locking hole (2121) is provided with a locking component (4) that can act on both locking holes (2121) simultaneously, so as to prevent the connecting block (21) from disengaging from the winding tube (11) after locking.

6. The high-efficiency heated electromagnetic automotive fuel pump according to claim 5, characterized in that: The locking assembly (4) includes a bolt (41) and a nut (42), with a shank of the bolt (41) passing through the locking socket (2121) and the nut (42) disposed on the bolt (41).

7. The high-efficiency heated electromagnetic automotive fuel pump according to claim 2, characterized in that: One of the connecting blocks (21) has symmetrically distributed wire-locking grooves (213) on its outer peripheral surface. The wire-locking grooves (213) have guide grooves (2131) on both the bottom and top surfaces of the connecting block (21).

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