Terminal connector unit and fuel supply device

Abstract

To provide a terminal connector unit which can facilitate wiring work of an electric cable to a motor-side connection part of a terminal connector.SOLUTION: A terminal connector unit has a plurality of terminal connectors 54a, 54b, and 54c having a connector-side connection part 71 and a motor-side connection part 72. In each of the terminal connectors 54a, 54b, 54c, a band-like metal piece extending continuously in one direction is bent in a direction of a plate thickness in the middle of an extension direction, and one side of the extension direction is the connector-side connection part 71 while the other side is the motor-side connection part 72. All of the terminal connectors 54a, 54b, 54c are arranged so that the motor-side connection parts 72 adjacent to each other in an arrangement direction are displaced in the direction of the plate thickness while the connector-side connection parts 71 are arranged in a row side by side.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a terminal unit and a fuel supply device. [Background technology]

[0002] A terminal unit for supplying power to a drive motor of a fuel supply device is known in which three types of terminals for U-phase, V-phase, and W-phase are embedded in a resin block of the fuel supply device. The following two types of terminal units are known as this type of terminal unit.

[0003] In one terminal unit, approximately L-shaped terminal terminals (approximately L-shaped metal) for U-phase, V-phase, and W-phase are premolded in an aligned state, and the premolded terminals are embedded in a resin block. In this terminal unit, one end of each terminal is a power supply side terminal portion, and the other end is a motor side terminal portion. The power supply side terminal portion is formed in a narrow rod shape, and the motor side terminal portion is formed in a plate shape wider than the power supply side terminal portion. The power supply side terminal portions of the three terminal terminals are arranged horizontally, and the motor side terminal portions are arranged vertically in a row in the plate thickness direction. An electric cable is connected to each motor side terminal portion to connect to a power supply terminal on the motor side.

[0004] In the other terminal unit, a power supply terminal and a motor terminal are connected to the input and output lead terminals of the control electronic component, respectively. The power supply terminals and motor terminals have three types, for U-phase, V-phase, and W-phase, and terminals of the same phase are electrically connected to each other via the lead terminals of the control electronic component (for example, see Patent Document 1).

[0005] The terminal unit described in Patent Document 1 has three power supply side terminals arranged side by side, for example, and connected to the input side lead terminal of the control electronic component. The motor side connection terminal is formed in a plate shape wider than the power supply side terminal, and its base end side is connected to the output side lead terminal of the control electronic component. Two of the three motor side connection terminals (sides connected to an electric cable) are arranged vertically and parallel to each other in the plate thickness direction of the terminal, and the remaining one end (side connected to an electric cable) is arranged side by side with one of the end portions of the former two motor side connection terminals. An electric cable for connection to a power supply terminal on the motor side is connected to each of these motor side connection terminals. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2011-116275 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the former terminal unit described above, the plate-shaped motor-side connection parts of the multiple terminals are arranged vertically in a row in the thickness direction, so when connecting the terminals of the electric cable on the motor side to each motor-side connection part by crimping, welding, etc., the terminals of the electric cables and tools are likely to interfere with the adjacent motor-side connection parts or other electric cables, making it difficult to connect the electric cables to the motor-side connection parts.

[0008] In addition, the latter terminal unit mentioned above has a control electronic component interposed within the unit, but if one considers applying this latter motor side connection terminal structure to a terminal unit that does not have a control electronic component interposed, the following inconveniences arise.

[0009] That is, in a portion where two adjacent motor-side connection parts are arranged vertically and parallel to each other in the plate thickness direction, when an electric cable is connected to the motor-side connection part by crimping, welding, etc., the terminals and tools of the electric cable are likely to interfere with the adjacent motor-side connection parts or other electric cables at the front and rear. Also, in a portion where two adjacent motor-side connection parts are arranged horizontally, unless the two motor-side connection parts are sufficiently separated, the terminals and tools of the electric cable are also likely to interfere with the adjacent motor-side connection parts or other electric cables.

[0010] SUMMARY OF THE PRESENT DISCLOSURE In view of the above, an object of the present invention is to provide a terminal unit and a fuel supply device that can facilitate the wiring of an electric cable to a motor-side connection portion of a terminal. [Means for solving the problem]

[0011] In order to solve the above problems, the terminal unit according to the present invention employs the following configuration. In other words, a terminal unit according to one embodiment of the present invention comprises a plurality of terminal terminals each having a connector side connection portion protruding in one direction and a motor side connection portion protruding in a direction approximately perpendicular to the connector side connection portion and wider than the connector side connection portion, and the connector side connection portions of the plurality of terminal terminals are arranged horizontally in a row, and each of the terminal terminals is a strip-shaped metal piece extending continuously in one direction, which is bent in the plate thickness direction at a midpoint in the extension direction, so that one end side in the extension direction is the connector side connection portion and the other end side is the motor side connection portion, and all of the terminal terminals are arranged such that when the connector side connection portions are arranged horizontally in a row, adjacent motor side connection portions in the arrangement direction are shifted in the plate thickness direction.

[0012] In the above configuration, the motor side connection portions of the multiple terminals are offset in the plate thickness direction between adjacent ones in the arrangement direction, so that the electric cable can be connected to the motor side connection portion without interfering with adjacent motor side connection portions or other electric cables. Furthermore, in the above configuration, the terminals are formed by bending a strip-shaped metal piece that extends continuously in one direction in the plate thickness direction at a midpoint in the extending direction, so that the multiple terminals can be formed symmetrically in a front view, which makes it easy to install the terminal unit in the installation portion and makes it easier to connect the electric cables to the motor side connection portions.

[0013] The multiple terminals may be connected to each other by pre-molded resin in part of the extension direction, and an application portion of an intermediary agent for fixing the molded resin and each of the terminals during this molding process may be provided in a portion of each of the terminals that is approximately the same width as the motor side connection portion.

[0014] In this case, since the application portion of the intermediate agent is provided in a region that is approximately the same width as the motor side connection portion, a sufficient amount of intermediate agent can be applied to the large area of ​​the application portion, making it possible to firmly fix the terminal to the molded resin via the intermediate agent during this molding process. Furthermore, since adjacent terminals do not face each other at any location on a wide surface perpendicular to the plate thickness direction, the intermediate agent can be easily applied to the wide surface of the application portion of each terminal.

[0015] The motor side connection portions of the three terminals may be arranged so that the central motor side connection portion is shifted in the plate thickness direction relative to the two motor side connection portions on either side, and the two motor side connection portions on either side are arranged in positions that are not shifted in the plate thickness direction.

[0016] In this case, it is possible to arrange the three motor side connection parts in a compact, concentrated manner without interfering with the connection of the electric cables to the respective motor side connection parts.

[0017] A fuel supply device according to one embodiment of the present invention comprises a fuel pump having an electric motor for driving it, a pump holding member for holding the fuel pump, and a terminal unit for electrically connecting terminals of a connector on the power source side to an electric cable of the electric motor, the terminal unit being the terminal unit described above, and characterized in that a portion of each of the terminal terminals is embedded in a resin block portion of the pump holding member.

[0018] In the fuel supply device of this embodiment, the motor side connection portions of the three terminals are offset in the plate thickness direction from adjacent ones in the arrangement direction, so that an electrical cable can be easily connected to the motor side connection portion without interfering with adjacent motor side connection portions or other electrical cables. In the fuel supply device of this aspect, the central motor connection part of the three terminals is offset in the plate thickness direction relative to the two motor connection parts on either side, and the two motor connection parts on either side are positioned so that they are not offset in the plate thickness direction. This allows the three motor connection parts to be compactly arranged together without interfering with the connection of the electric cables to each motor connection part.

[0019] The resin block portion may be provided with a terminal arrangement portion having a semicircular shape in a plan view adjacent to a pump holding portion that holds the fuel pump, and the three terminals may be arranged so that the motor side connection portion of one terminal is located near the top of the terminal arrangement portion and the motor side connection portions of the remaining two terminals are located at a position spaced apart from the top of the terminal arrangement portion.

[0020] In this case, three terminals are arranged in a semicircular terminal arrangement section adjacent to the pump holding section such that the motor side connection portion of one terminal is located near the top of the terminal arrangement section and the motor side connection portion of the remaining terminal is spaced apart from the top, allowing the three terminals to be compactly arranged in a position adjacent to the pump holding section. In addition, in the case of this configuration, since the multiple motor-side connection parts do not protrude outward from near the top of the semicircular terminal arrangement part, for example, when the fuel supply device is accommodated inside the fuel tank through an opening in the fuel tank, the motor-side connection parts of the terminal terminals are less likely to interfere with the edge of the opening, etc. Therefore, when this configuration is adopted, the workability of assembling the fuel supply device is improved.

[0021] The resin block portion may have three guide walls surrounding the outside of the motor side connection portion of each of the terminal terminals, and each of the guide walls may be provided with an opening reaching the base end of the exposed portion of the terminal terminal.

[0022] In this case, the outside of each motor-side connection part is surrounded by the guide wall, so that the connection part between each motor-side connection part and the electric cable can be protected by the guide wall. Furthermore, each guide wall is provided with an opening that reaches the base end of the exposed part of the terminal, so that the connection state between the motor-side connection part and the electric cable can be easily visually confirmed from the outside through the opening. Furthermore, since the opening in the guide wall reaches the base end of the exposed part of the terminal, when water enters the inside of the guide wall, the water can be discharged to the outside of the guide wall through the opening.

[0023] The three guide walls may be formed in a block shape with a guide wall covering the outside of the two motor side connection parts on either side overlapping a guide wall covering the outside of the central motor side connection part, and the openings of all of the guide walls may be arranged to face in one direction and open to the outside.

[0024] In this case, the three guide walls that house the connection ends of the electric cables are arranged in one place, making it possible to make the power supply unit of the fuel supply device compact. Also, in this configuration, the openings of all of the guide walls face in one direction, making it easy to visually check the connection state between each motor-side connection part and the electric cables from one direction.

[0025] The pump holding member is provided with a cylindrical wall whose axial direction faces in a direction intersecting the extension direction of the motor side connection portion and whose axial end portion on the terminal terminal side is arranged spaced apart from the extension end of the motor side connection portion in a direction perpendicular to the axial direction, and three power supply terminals of the electric motor connected to the electric cable are arranged on a semicircular portion on the side of the outer periphery of the cylindrical wall that is spaced apart from the motor side connection portion, and chamfered portions may be provided at the outer circumferential corners of the end portion of the cylindrical wall.

[0026] In this case, since a chamfer is provided on the outer circumferential corner of the axial end of the cylindrical wall of the pump holding member, even if the electric cable connected to the power supply terminal of the electric motor and the motor-side connection part swings significantly, the electric cable can be prevented from abutting against the outer circumferential corner of the end of the cylindrical wall and being damaged. When the fuel supply device is installed inside a fuel tank, the electric cable may be strongly struck against the outer circumferential corner of the end of the cylindrical wall due to the large swinging of the fuel in the fuel tank, but even in such a case, damage to the electric cable can be reliably prevented. Effect of the Invention

[0027] The terminal unit and fuel supply device according to the present invention can easily connect an electric cable to a motor-side connection part without interfering with adjacent motor-side connection parts or other electric cables. Therefore, when the terminal unit and fuel supply device according to the present invention are used, the wiring work of the electric cable to the motor-side connection part of the terminal can be simplified. [Brief description of the drawings]

[0028] [Figure 1] FIG. 2 is a perspective view of a fuel supply device according to the embodiment. [Diagram 2] FIG. 2 is a rear view of the fuel supply device according to the embodiment; [Diagram 3] 1 is a perspective view of a fuel supply device according to an embodiment, seen from above and rearward; [Figure 4]FIG. 4 is a perspective view similar to FIG. 3 with some components of the fuel supply device of the embodiment removed. [Diagram 5] 4 is a cross-sectional view of the fuel supply device according to the embodiment taken along line VV in FIG. 3. [Figure 6] FIG. 4 is a perspective view showing three terminals of the embodiment. [Figure 7] FIG. 2 is a perspective view of a terminal unit according to an embodiment. [Figure 8] FIG. 11 is a perspective view of a terminal unit according to another embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Fig. 1 is a perspective view of the fuel supply device 1 of this embodiment, and Fig. 2 is a rear view of the fuel supply device 1. Fig. 3 is a perspective view of the fuel supply device 1 as viewed from a different direction from that of Fig. 1. Fig. 4 is a perspective view of the fuel supply device 1, similar to Fig. 3, with some components (pump holding block 16) removed. Fig. 5 is a cross-sectional view corresponding to the cross section along line VV in Fig. 3. The fuel supply device 1 of this embodiment is installed in a fuel tank 2 (see FIG. 5) of a vehicle such as a motorcycle. The fuel supply device 1 is fixed to an installation wall 3 (e.g., a bottom wall) of the fuel tank 2 so that a main part of the device is housed in the internal space of the fuel tank 2. The fuel supply device 1 includes a fuel pump 10 that draws in fuel in the fuel tank 2 and discharges it to a discharge passage, a pump holding member 11 that is attached to the periphery of an opening 4 of the installation wall 3 while holding the fuel pump 10, and a suction filter 12 that is connected to the suction portion of the fuel pump 10.

[0030] 5, fuel pump 10 has a driving electric motor 14 built in a casing 13 and is formed in a generally cylindrical shape that is long in the axial direction. Fuel pump 10 is held horizontally by pump holding member 11 so that the axial direction is generally parallel to mounting wall 3 of fuel tank 2. In this embodiment, the axial direction of the fuel pump 10 coincides with the extending direction of the rotating shaft 50 (see FIG. 5) of the built-in electric motor 14. In the drawings, the axis of the rotating shaft 50 is indicated with the symbol o at the appropriate place. In the following description, unless a particular direction is specified, the direction along the axis o of the rotating shaft 50 (fuel pump 10) will be referred to as the axial direction.

[0031] The pump holding member 11 includes a base block 15 attached to the installation wall 3 so as to close the opening 4 of the fuel tank 2, a pump holding block 16 that holds the fuel pump 10, and a cover block 17 that covers the protruding end of the fuel pump 10. Almost the entire areas of the base block 15, the pump holding block 16, and the cover block 17 are formed from an oil-resistant (gasoline-resistant) resin. The suction filter 12 is connected to a suction pipe 18 that extends further in the axial direction from the protruding end of the fuel pump 10. For ease of explanation, in the following, when the fuel supply device 1 is installed in the fuel tank 2, the side on which the fuel pump 10 is positioned with respect to the inner surface of the installation wall 3 of the fuel tank 2 is referred to as "upper", and the side opposite the "upper" is referred to as "lower". In addition, the side on which the axial end of the fuel pump 10 protrudes from the base block 15 is referred to as "front", and the side opposite the "front" is referred to as "rear". Furthermore, when the fuel supply device 1 is viewed from above with the fuel pump 10 facing "front", the side facing left is referred to as "left", and the side opposite the "left" is referred to as "right". The left-right direction may be referred to as the "width direction". In the appropriate places on the drawing there are an arrow UP pointing upward, an arrow FR pointing forward, and an arrow LH pointing to the left.

[0032] The base block 15 has a base portion 19 which is inserted into the opening 4 of the fuel tank 2, a fixed flange portion 20 which is connected to the lower end of the base portion 19 and fixed to the outer peripheral edge portion on the lower side of the opening 4 of the fuel tank 2, and a base side connecting portion 21 which protrudes from an end portion 19e (upper end portion) of the base portion 19 opposite the fixed flange portion 20 to the inside of the fuel tank 2 (the upper side of the base portion 19).

[0033] The base block 15 further has a pipe connection portion 51 and a connector connection portion 52 connected to the lower end of the fixed flange portion 20. A fuel supply port 53 communicating with the discharge portion of the fuel pump 10 is protrudingly provided from the pipe connection portion 51, and three terminal terminals 54a, 54b, 54c for power supply are embedded in the connector connection portion 52. A fuel supply pipe (not shown) for supplying the fuel discharged from the fuel pump 10 to an external fuel-using device (e.g., an internal combustion engine) is connected to the fuel supply port 53. The terminal terminals 54a, 54b, 54c of the connector connection portion 52 are electrically connected to the power supply portion of the electric motor 14 via electric cables 55a, 55b, 55c. The terminal terminals 54a, 54b, 54c respectively connect the terminals of a connector (not shown) on the power source side to the corresponding electric cables 55a, 55b, 55c.

[0034] The base portion 19 is formed in a generally oval shape that is slightly smaller than the opening 4 of the fuel tank 2 when viewed from above. The fixed flange portion 20 is connected to the lower end of the base portion 19 and protrudes radially outward from the outer circumferential surface of the base portion 19. An annular seal accommodating portion 20a is formed on the upper surface of the fixed flange portion 20. An annular seal member (not shown) is attached to the seal accommodating portion 20a. The seal member seals the gap between the fixed flange portion 20 and the outer surface of the fuel tank 2 when the fixed flange portion 20 is fixed to the peripheral portion of the opening 4 of the fuel tank 2. The fixed flange portion 20 is fixed to the peripheral portion of the opening 4 of the fuel tank 2 by welding or the like. The base side connecting portion 21 will be described in detail later.

[0035] The pump holding block 16 has a pump holding portion 22 that holds the fuel pump 10 sideways, and a holding block side connecting portion 23 that is connected to the rear side of the pump holding portion 22 and is connected to the base side connecting portion 21 of the base block 15.

[0036] The pump holder 22 has a pair of substantially flat base walls 22s covering the left and right sides of one end of the fuel pump 10 in the axial direction, an upper wall 22u connected to the upper ends of the pair of base walls 22s and extending forward from the upper ends of the base walls 22s, and a lower wall 22l connected to the front parts of the lower ends of the pair of base walls 22s and extending forward from the lower sides of the base walls 22s. The upper wall 22u and the lower wall 22l are formed in an arc-shaped cross section having a radius substantially coaxial with the outer peripheral surface of the fuel pump 10. The upper wall 22u is bridged between the left and right base walls 22s so as to cover the upper part between the left and right base walls 22s. The upper wall 22u and the lower wall 22l are formed to have a width substantially equal to the width between the outer surfaces of the left and right base walls 22s. The fuel pump 10 is inserted axially inside (between the inner circumferential surfaces) of the lower wall 22l and the upper wall 22u, and its outer circumferential surface is held by the lower wall 22l and the upper wall 22u. The fuel pump 10 is inserted into the inside of the lower wall 22l and the upper wall 22u from the front end side thereof. The fuel pump 10 held by the lower wall 22l and the upper wall 22u has its discharge end inserted between the left and right base walls 22s and its suction end protruding forward from the front ends of the lower wall 22l and the upper wall 22u.

[0037] 5, a pipe connection portion 26 to which a cylindrical discharge pipe 25 of the fuel pump 10 is connected is disposed in a space surrounded by the left and right base walls 22s and the upper wall 22u of the pump holding portion 22. The pipe connection portion 26 is connected to the upper wall 22u and the left and right base walls 22s by a plurality of ribs 27 that protrude radially from the outer circumferential surface of the pipe connection portion 26. In this embodiment, the pipe connection portion 26 constitutes a cylindrical wall.

[0038] As shown in Fig. 5, the fuel pump 10 has the electric motor 14 disposed in the central region in the axial direction within a cylindrical casing 13. An impeller 28 that receives power from a rotary shaft 50 of the electric motor 14 and rotates is disposed at one axial end (front side) within the casing 13. The above-mentioned discharge pipe 25 is disposed at the other axial end (rear side) within the casing 13. The impeller 28 draws in fuel from the fuel tank 2 through the suction pipe 18 and the suction filter 12, and discharges the fuel through a gap within the electric motor 14 toward the discharge pipe 25 at the other axial end. A check valve 29 is attached inside the discharge pipe 25 to prevent the fuel from flowing back into the fuel pump 10.

[0039] The fuel discharged from the discharge pipe 25 is supplied to the fuel supply port 53 through the pipe connection part 26 of the pump holding block 16 and a discharge passage 30 formed inside the base block 15. A regulator valve 31 is provided in the middle of the discharge passage 30 inside the base block 15 to adjust the flow rate of the fuel supplied.

[0040] The holding block side connecting portion 23 of the pump holding block 16 includes a support wall 32 (see FIG. 5) that protrudes downward from the rear end region of the pump holding portion 22 and abuts against the end 19e of the base portion 19 on the base block 15 side. In this embodiment, the support wall 32 is formed in a rectangular block shape. A pair of flat support surfaces are provided side by side in the front and rear on the left and right side surfaces of the support wall 32. An engagement protrusion 34 (see FIG. 1) that is substantially square in front view is formed in the approximate center of each support surface. The engagement protrusion 34 protrudes laterally from each support surface and is formed in a substantially rectangular parallelepiped shape as a whole. An inclined surface that slopes downward toward the inside in the width direction is formed on the lower edge of the engagement protrusion 34.

[0041] On the other hand, the base-side connecting portion 21 of the base block 15 has two pairs of engagement pieces 40 that protrude upward from two positions spaced apart in the width direction on the base portion 19. The pairs of engagement pieces 40 are arranged side by side in the front-to-rear direction of the base portion 19. The engagement pieces 40 are substantially rectangular plate-like pieces having a predetermined thickness. The two engagement pieces 40 that make up a pair are spaced apart in the width direction by substantially the same width as the width between the left and right support surfaces of the support wall 32 on the pump holding block 16 side.

[0042] A locking hole 37 for locking the corresponding locking protrusion 34 of the support wall 32 on the base block 15 side is formed in the approximate center of each locking piece 40 constituting the base side connecting portion 21. Each locking hole 37 is formed in an approximately rectangular shape of the same size as the locking protrusion 34.

[0043] When connecting the pump holding block 16 to the base block 15, the support wall 32 on the pump holding block 16 side is aligned with the two pairs of engagement pieces 40 on the base block 15 side, and the support wall 32 is pressed between the pairs of engagement pieces 40. As a result, each pair of engagement pieces 40 is pushed apart to the left and right by the engagement protrusions 34 of the support wall 32, and when the support wall 32 is pressed a predetermined amount against the pairs of engagement pieces 40, each engagement protrusion 34 fits into the corresponding locking hole 37. As a result, the pump holding block 16 is prevented from coming off the base block 15, and rattling between the pump holding block 16 and the base block 15 is also prevented by the engagement of each engagement protrusion 34, which has a rectangular shape when viewed from the front, with the locking hole 37. In this embodiment, the engagement projections 34 on both side surfaces of the support wall 32 and the locking holes 37 of the paired engagement pieces 40 form a snap-fit ​​engagement portion that connects the pump holding block 16 and the base block 15.

[0044] In addition, guide walls 65a, 65b, and 65c are provided in a protruding manner in the central region in the width direction near the rear of the base portion 19, covering the outside of the motor-side connection portion 72 of the terminal terminals 54a, 54b, and 54c. The terminal terminals 54a, 54b, and 54c are partially embedded across the connector connection portion 52 of the base block 15, the base portion 19, and the guide walls 65a, 65b, and 65c. The guide walls 65a, 65b, and 65c have a channel-shaped cross section that opens toward the rear and protrudes upward. The guide walls 65a, 65b, and 65c are provided with an opening 80 that reaches the base end of the exposed portion (the portion exposed inside the fuel tank 2) of the terminal terminals 54a, 54b, and 54c. As shown in Figures 2 to 4, two of the guide walls 65a, 65b, and 65c are arranged spaced apart in the width direction, and the remaining one is connected to the rear surfaces of the widthwise inner side walls 65as, 65cs of the two guide walls 65a, 65c. The three terminals 54a, 54b, 54c are pre-assembled as an integrated terminal unit 70, and in this state are insert-molded into the base block 15. In this embodiment, the portion of the base block 15 in which the terminal unit 70 is embedded constitutes a resin block portion. The specific structure of the terminal unit 70 will be described in detail later.

[0045] Here, the rear side area of ​​the base portion 19 from the pump holding portion 22 (area adjacent to the pump holding portion 22) is formed in a semicircular shape in a plan view, and the semicircular part is the terminal arrangement portion 45 (see FIG. 1). The above-mentioned three guide walls 65a, 65b, 65c and the motor side connection parts 72 of the terminals 54a, 54b, 54c are protruded on this terminal arrangement portion 45. The central guide wall 65b arranged on the rearmost side and its inner motor side connection part 72 are arranged near the apex of the rear end side of the semicircular terminal arrangement portion 45. The two front guide walls 65a, 65c and these inner motor side connection parts 72 are arranged symmetrically with respect to the center line passing through the center of the terminal arrangement portion 45 in the width direction. As described above, the three guide walls 65a, 65b, 65c and the motor side connection portions 72 of each terminal 54a, 54b, 54c are arranged on the terminal arrangement portion 45 on the rear side of the base portion 19, and are therefore compactly arranged in the limited space on the terminal arrangement portion 45 adjacent to the pump holding portion 22.

[0046] The block of guide walls 65a, 65b, 65c protruding upward from the base portion 19 constitutes a holding block 66 that holds the terminals 54a, 54b, 54c. Of the three guide walls 65a, 65b, 65c that constitute the holding block 66, the front faces of the two front guide walls 65a, 65c can abut against the rear face of the support wall 32 (holding block side connecting portion 23) of the base block 15. By abutting against the rear face of the support wall 32, the holding block 66 restricts the rearward displacement and front-rear tilt of the pump holding block 16.

[0047] 2, 4, and 5, the three power supply terminals 57a, 57b, and 57c of the electric motor 14 protrude rearward from the peripheral edge of the rear end of the fuel pump 10. The three power supply terminals 57a, 57b, and 57c are provided protrudingly at equal intervals in the circumferential direction in the upper half region of the rear end of the fuel pump 10. The power supply terminals 57a, 57b, and 57c are disposed outside the pipe connection portion 26 (cylindrical wall) connected to the rear end of the fuel pump 10. More specifically, the power supply terminals 57a, 57b, and 57c are disposed on a semicircular portion on the upper side (the side away from the motor-side connection portion 72) of the outer periphery of the pipe connection portion 26 (cylindrical wall).

[0048] Electric cables 55a, 55b, 55c, one end of which is connected to power supply terminals 57a, 57b, 57c, are pulled out along the axial direction on the outer circumferential surface of conduit connection part 26 (cylindrical wall) and are further pulled out downward via outer circumferential corners of the axial end of conduit connection part 26. The other ends of electric cables 55a, 55b, 55c pulled out downward are connected to motor side connection parts 72 of corresponding terminals 54a, 54b, 54c. In this manner, the outer circumferential corner of the axial end of the conduit connection part 26 (cylindrical wall) through which the electric cables 55a, 55b, 55c are routed is formed with a chamfered arc surface 60. Note that the outer circumferential corner of the axial end of the conduit connection part 26 (cylindrical wall) means the corner between the outer circumferential surface and the end face of the conduit connection part 26.

[0049] In addition, the cover block 17, which covers the protruding end side (front end side) of the fuel pump 10, is attached to the front ends of the upper wall 22u and lower wall 22l of the pump holding block 16, as shown in FIG. 5, and surrounds the outer periphery of the fuel tank 2 together with the pump holding portion 22 of the pump holding block 16.

[0050] The cover block 17 includes a cylindrical cap portion 17b with a bottom that is attached to the axial end of the fuel pump 10, and a plurality of locking pieces 17a that extend rearward from upper and lower ends of a peripheral wall of the cap portion 17b. When the cap portion 17b is attached to the axial end of the fuel pump 10, the plurality of locking pieces 17a are fixed to an upper wall 22u and a lower wall 22l of the pump holding block 16 by snap-fit ​​engagement or the like.

[0051] <Terminal unit> Next, the detailed structure of the terminal unit 70 will be described. FIG. 6 is a perspective view showing the terminal unit 70 before preliminary assembly by premolding, and FIG. 7 is a perspective view of the terminal unit 70 after preliminary assembly by premolding has been completed. The three terminals 54a, 54b, 54c are each formed of a strip-shaped metal piece extending continuously in one direction. Each of the terminals 54a, 54b, 54c has a connector-side connection portion 71 that protrudes substantially horizontally and a motor-side connection portion 72 that protrudes vertically upward. The motor-side connection portion 72 protrudes in a direction substantially perpendicular to the connector-side connection portion 71. The connector-side connection portion 71 is formed in a rod shape with a pointed tip. The motor-side connection portion 72 is formed to be wider than the connector-side connection portion 71. The connector-side connection portions 71 of the three terminals 54a, 54b, 54c are arranged side by side, and are fitted and connected to a power supply connector (not shown) in the connector connection portion 52 of the base block 15.

[0052] The strip-shaped metal pieces constituting each of the terminals 54a, 54b, 54c are formed so that the width of one end region that becomes the connector side connection portion 71 is the narrowest, and the width of the other end region that becomes the motor side connection portion 72 is the widest. Between the connector side connection portion 71 and the motor side connection portion 72 of the metal pieces, a relay portion 73 is formed, which is wider than the connector side connection portion 71 and narrower than the motor side connection portion 72. Each of the terminals 54a, 54b, 54c is bent at a substantially right angle in the plate thickness direction at a portion of the relay portion 73 close to the connector side connection portion 71 (a midway portion in the extending direction of the metal piece). Hereinafter, this bent portion is referred to as the "lower end bent portion 74". The three terminals 54a, 54b, 54c are set to have the same length from the tip portion (projecting end) of the connector side connection portion 71 to the lower end bent portion 74.

[0053] The terminals 54a, 54c arranged on both the left and right sides have a portion of the relay portion 73 located above the lower end bent portion 74 that extends vertically upward in a straight line toward the motor side connection portion 72. Therefore, the motor side connection portions 72 of the two terminals 54a, 54c on both the left and right sides are arranged at the same position in the plate thickness direction (front-rear direction). The two terminals 54a, 54c are not misaligned in the plate thickness direction (front-rear direction).

[0054] In contrast, the terminal 54b disposed in the center has an upward extension 75 and a crank-shaped portion 76 provided above the lower end bent portion 74 of the relay portion 73. The upward extension 75 extends vertically upward from the lower end bent portion 74, and the crank-shaped portion 76 is bent once at a substantially right angle from the upper end of the upward extension 75 to one side (rear) in the plate thickness direction, and then bent at a substantially right angle to the other side (upward) in the plate thickness direction. The crank-shaped portion 76 has a first bent portion 76a bent from the upper end of the upward extension 75 to one side (rear) in the plate thickness direction, a second bent portion 76b bent to the other side (upward) in the plate thickness direction, and a connection portion 76c connecting the first bent portion 76a and the second bent portion 76b. The motor-side connection portion 72 of the terminal 54b disposed in the center is located above the second bent portion 76b. Therefore, the motor side connection portion 72 is arranged to be shifted toward one side (rear side) in the plate thickness direction by the length of the connection portion 76c with respect to the lower end bent portion 74. Therefore, the motor side connection portion 72 of the central terminal 54b is arranged to be shifted in the plate thickness direction (front-rear direction) with respect to the motor side connection portions 72 of the terminal terminals 54a, 54c on both the left and right sides. In addition, the three terminal terminals 54a, 54b, 54c are arranged such that the motor side connection portions 72 adjacent to each other in the arrangement direction are shifted in the plate thickness direction (front-rear direction) when the connector side connection portions 71 are arranged in a row side by side. Therefore, all the terminal terminals 54a, 54b, 54c are arranged such that the motor side connection portions 72 adjacent to each other in the arrangement direction are shifted in the plate thickness direction. The motor side connection portion 72 of the central terminal 54b is disposed at the same height as the motor side connection portions 72 of the terminals 54a, 54c on both the left and right sides.

[0055] Furthermore, at a position above the lower end bent portion 74 of the relay portion 73 of each of the terminals 54a, 54b, 54c by a predetermined height, an application portion 77 of an intermediate agent that intermediates between the molded resin and the metal pieces during molding is formed. The intermediate agent intermediates between the molded resin and each of the terminals 54a, 54b, 54c (metal pieces) when the terminal unit 70 is molded into the resin block portion of the fuel supply device 1 (during main molding), and firmly fixes both together. As the intermediate agent, an adhesive or the like that is in a liquid state when applied is used.

[0056] The application portion 77 of the intermediate agent is provided at approximately the midpoint between the lower end bent portion 74 and the first bent portion 76a in the central terminal 54b. The application portions 77 of the two terminals 54a, 54c on both sides are provided at the same height as the application portion of the central terminal 54b. Each application portion 77 is provided with a plurality of protrusions 78 that bulge outward in the width direction in a mountain shape on both sides of the relay portion 73 in the width direction. The protrusions 78 are arranged in a vertical direction and have a wave shape in front view. The application portion 77 with the plurality of protrusions 78 formed on both sides in the width direction has approximately the same width as the motor side connection portion 72 of each terminal 54a, 54b, 54c.

[0057] The three terminals 54a, 54b, 54c are arranged such that the connector side connection parts 71 are aligned horizontally in a row, and the motor side connection part 72 of the central terminal 54b is shifted to one side (rear side) in the plate thickness direction relative to the motor side connection parts 72 of the terminals 54a, 54c on both the left and right sides. In this state, the three terminals 54a, 54b, 54c are connected to each other by a pre-molded resin 79. The pre-molded resin 79 connects the relay parts 73 of the three terminals 54a, 54b, 54c to each other by molding. In this embodiment, the pre-molded resin 79 connects the vicinity of the lower end bent parts 74 of the relay parts 73 of the terminals 54a, 54b, 54c to each other, and the upper side regions of the application parts 77 to each other. The terminal unit 70 is thus formed by connecting the three terminals 54 a , 54 b , and 54 c with the premolded resin 79 .

[0058] <Effects of the embodiment> In the terminal unit 70 of this embodiment, the terminals 54a, 54b, 54c are each formed of a strip-shaped metal piece extending continuously in one direction, and the metal piece is bent in the plate thickness direction at a midpoint in the extending direction, so that one end side in the extending direction is a connector side connection part 71 and the other end side is a motor side connection part 72. The terminal terminals 54a, 54b, 54c are arranged such that, when the connector side connection parts 71 are arranged in a row side by side, the motor side connection parts 72 adjacent to each other in the arrangement direction are shifted in the plate thickness direction. Therefore, when the terminal unit 70 of this embodiment is adopted, an electric cable can be easily connected to the motor side connection part 72 without interfering with the adjacent motor side connection parts 72 or other electric cables.

[0059] Therefore, by adopting the fuel supply device 1 of this embodiment, it is possible to facilitate the wiring work of the electric cables 55a, 55b, and 55c to the motor side connection parts 72 of the terminals 54a, 54b, and 54c. Therefore, it is possible to contribute to Goal 7 "Ensure access to affordable, reliable, sustainable and modern energy for all" and Goal 8 "Promote sustained, inclusive and sustainable economic growth, full productive employment and decent work for all" of the Sustainable Development Goals (SDGs) led by the United Nations.

[0060] In the terminal unit 70 of this embodiment, the terminals 54a, 54b, 54c are formed by bending a strip-shaped metal piece extending continuously in one direction in the plate thickness direction at a midpoint in the extending direction, so that all the terminals 54a, 54b, 54c can be formed symmetrically in a front view. This makes it possible to easily install the terminal unit 70 on the base part 19 and the holding block 66 of the fuel supply device 1, which are the installation parts, and also makes it easier to connect the electric cables 55a, 55b, 55c to the motor side connection parts 72. Furthermore, when the power supply terminals 57a, 57b, and 57c of the electric motor 14 are arranged symmetrically above the terminals 54a, 54b, and 54c as in this embodiment, the lengths of at least the left and right electric cables 55a and 55c can be made the same, which makes it possible to reduce the number of types of electric cables used.

[0061] In the terminal unit 70 of this embodiment, a part of the extending direction of the terminals 54a, 54b, 54c is connected to each other by the pre-molded resin 79, and the intermediate agent application part 77 is provided at a part having substantially the same width as the motor side connection part 72 of each terminal 54a, 54b, 54c. Therefore, before the terminal unit 70 is molded into the resin block part, a sufficient amount of intermediate agent can be applied to the large area part of the application part 77 of the terminals 54a, 54b, 54c. As a result, the terminals 54a, 54b, 54c can be firmly fixed to the molded resin via the intermediate agent during molding. Furthermore, in the terminal unit 70 of this embodiment, adjacent terminal terminals 54a, 54b, 54c do not face each other at any location on a wide surface perpendicular to the plate thickness direction, so that the intermediate agent can be easily applied to the wide surface of the application portion 77 of each terminal terminal 54a, 54b, 54c.

[0062] In the terminal unit 70 of this embodiment, the motor side connection part 72 of the central terminal 54b is arranged to be shifted in the plate thickness direction relative to the motor side connection parts 72 of the two terminal terminals 54a, 54c on both sides, and the motor side connection parts 72 of the two terminal terminals 54a, 54c on both sides are arranged at positions (in the same row) where they are not shifted in the plate thickness direction. Therefore, when this configuration is adopted, it is possible to arrange the three motor side connection parts 72 compactly together without interfering with the connection of the electric cables 55a, 55b, 55c to the respective motor side connection parts 72.

[0063] Furthermore, the fuel supply device 1 of the present embodiment includes the terminal unit 70, and a portion of each of the terminals 54a, 54b, 54c of the terminal unit 70 is embedded in the resin block portion of the pump holding member 11. This makes it possible to easily connect an electric cable to the motor side connection portion 72 without interfering with adjacent motor side connection portions 72 or other electric cables, and also makes it possible to arrange the three motor side connection portions 72 in a compact, concentrated manner.

[0064] Furthermore, in the fuel supply device 1 of this embodiment, a terminal arrangement portion 45 having a semicircular shape in a plan view is provided at a position adjacent to the rear side of the pump holding portion 22 of the pump holding member 11. Of the three terminals 54a, 54b, 54c, the motor side connection portion 72 of one terminal is arranged near the apex of the rear end side of the terminal arrangement portion 45, and the motor side connection portions 72 of the remaining two terminals are arranged at positions spaced apart from the apex of the rear end side of the terminal arrangement portion 45. This allows the three terminals 54a, 54b, 54c to be compactly arranged at a position adjacent to the pump holding portion 22. Furthermore, in this configuration, the multiple motor side connection portions 72 do not protrude outward from near the apex on the rear end side of the semicircular terminal arrangement portion 45. As a result, when a part of the pump holding member 11 of the fuel supply device 1 is placed inside the fuel tank 2 through the opening 4 of the fuel tank 2, the motor side connection portions 72 of the terminal terminals 54a, 54b, 54c are less likely to interfere with the edge of the opening 4, etc. Therefore, when this configuration is adopted, the assembly workability of the fuel supply device 1 is improved.

[0065] Furthermore, in the fuel supply device 1 of this embodiment, the resin block portion has three guide walls 65a, 65b, 65c surrounding the outside of the motor side connection portion 72 of each of the terminal terminals 54a, 54b, 54c, and each of the guide walls 65a, 65b, 65c has an opening 80 that reaches the base end of the exposed portion of the terminal terminals 54a, 54b, 54c. Therefore, the connection portion between each of the motor side connection portions 72 and the electric cables 55a, 55b, 55c can be protected by the guide walls 65a, 65b, 65c. And, each of the guide walls 65a, 65b, 65c has an opening 80 that reaches the base end of the exposed portion of the terminal terminals 54a, 54b, 54c, so that the connection state between the motor side connection portion 72 and the electric cables 55a, 55b, 55c can be easily visually confirmed from the outside through the opening 80. Furthermore, since the openings 80 provided in the guide walls 65a, 65b, 65c reach the base ends of the exposed portions of the terminals 54a, 54b, 54c, when water enters the inside of the guide walls 65a, 65b, 65c, the water can be discharged to the outside of the guide walls 65a, 65b, 65c through the openings 80. This makes it possible to prevent electrical corrosion of metal parts caused by water remaining in the guide walls 65a, 65b, 65c.

[0066] In addition, the fuel supply device 1 of this embodiment is formed in a block shape in which the guide walls 65a, 65c covering the outside of the two motor side connection parts 72 on both sides are overlapped with the guide wall 65b covering the outside of the central motor side connection part 72, and the openings 80 of all the guide walls 65a, 65b, 65c face in one direction (rearward) and open to the outside. In this configuration, the three guide walls 65a, 65b, 65c that serve as the housing parts for the connection ends of the electric cables 55a, 55b, 55c are arranged in one place, so that the power supply part of the fuel supply device 1 can be made compact. In addition, in this configuration, the openings 80 of all the guide walls 65a, 65b, 65c face in one direction, so that the connection state between each motor side connection part 72 and the electric cables 55a, 55b, 55c can be easily visually confirmed from one direction.

[0067] In the fuel supply device 1 of this embodiment, the pump holding member 11 is provided with a pipe connection part 26 (cylindrical wall) whose axial direction faces a direction (axial direction) intersecting the protruding direction of the motor side connection part 72, and an axial end part (rear end part) of the pipe connection part 26 (cylindrical wall) is arranged spaced upward from the extending end of the motor side connection part 72. The three power supply terminals 57a, 57b, 57c of the electric motor 14 are arranged on a semicircular part on the outer periphery of the pipe connection part 26 (cylindrical wall) on the side away from the motor side connection part 72, and an arc surface 60 (chamfered part) is provided on an outer periphery corner part of the rear end part of the pipe connection part 26 (cylindrical wall). Therefore, even if the power supply terminals 57a, 57b, 57c of the electric motor 14 and the electric cables 55a, 55b, 55c connected to the motor side connection portion 72 swing significantly, it is possible to prevent the electric cables 55a, 55b, 55c from coming into contact with the outer corners of the pipeline connection portion 26 (cylindrical wall) and being damaged. In particular, when the fuel supply device 1 is installed inside the fuel tank 2 as in this embodiment, the electric cables 55a, 55b, 55c may be struck hard against the outer corner of the pipe connection portion 26 (cylindrical wall) due to large vibrations of the fuel in the fuel tank 2. However, even in such a case, damage to the electric cables 55a, 55b, 55c can be reliably suppressed by the arc surface 60 (chamfered portion) provided on the outer corner.

[0068] <Other embodiments> FIG. 8 is a perspective view of a terminal unit 170 according to another embodiment. The terminal unit 170 of this embodiment has a basic configuration similar to that of the above embodiment, and the shapes of the terminals 54a, 54c on both the left and right sides are similar to those of the above embodiment. In Fig. 8, the same reference numerals are used to designate the same parts as those of the above embodiment.

[0069] The terminal unit 170 includes three terminals 54a, 154b, and 54c, each of which is formed of a strip-shaped metal piece extending continuously in one direction. The terminals 54a, 154b, and 54c are formed by bending the strip-shaped metal piece in the thickness direction at the midpoint of the extension direction, with one end of the extension direction being a connector side connection part 71 and the other end being a motor side connection part 72. The connector side connection part 71 of each of the terminals 54a, 154b, and 54c extends horizontally, and the motor side connection part 72 extends vertically upward. The connector side connection parts 71 of the three terminals 54a, 154b, and 54c are arranged in a row.

[0070] The metal pieces constituting the terminals 54a, 54b, and 54c have relay sections 73 between the connector side connection section 71 and the motor side connection section 72, the relay sections 73 being wider than the connector side connection section 71 and narrower than the motor side connection section 72. A lower end bent section 74 is provided in a position close to the connector side connection section 71 of each relay section 73, where the metal piece is bent at a substantially right angle in the thickness direction.

[0071] However, the terminals 54a, 54c arranged on both the left and right sides have the same length from the front end of the connector side connection part 71 to the lower end bent part 74, but the terminal 154b arranged in the center has a length from the front end of the connector side connection part 71 to the lower end bent part 74 that is shorter than the two on the left and right sides. Therefore, the position where the relay part 73 of the central terminal 154b rises upward is located rearward from the rising positions of the relay parts 73 of the terminals 54a, 54c on both the left and right sides. As a result, the motor side connection part 72 located on the upper end side of each of the terminals 54a, 154b, 54c is arranged so that the motor side connection part 72 located in the center is shifted rearward from the motor side connection parts 72 on both the left and right sides. Further, at a position slightly above the lower end bent portion 74 of the relay portion 73 of each of the terminals 54a, 54b, and 54c, a mediator application portion 77 similar to that of the above embodiment is provided.

[0072] The three terminals 54a, 154b, 54c are arranged such that the connector side connection portions 71 are aligned horizontally in a row, and the motor side connection portion 72 of the central terminal 154b is shifted to one side (rear side) in the plate thickness direction relative to the motor side connection portions 72 of the terminals 54a, 54c on both the left and right sides. In this state, the three terminals 54a, 154b, 54c are connected to each other by pre-molded resin 79. The pre-molded resin 79 connects the portions of the relay portions 73 of the terminals 54a, 154b, 54c adjacent to the lower end bent portions 74 and the portions adjacent to the positions directly below the motor side connection portions 72.

[0073] The terminal unit 170 of this embodiment has the same basic configuration as the above-mentioned embodiment, and therefore can provide the same effects as the above-mentioned embodiment. However, in the terminal unit 170 of this embodiment, the central terminal 154b does not need to have a crank-shaped portion, which is a separate bent portion in the plate thickness direction, formed on the upper side ring of the lower end bent portion 74. Therefore, the central terminal 154b has a simple shape, which makes it easier to form the terminal 154b.

[0074] The present invention is not limited to the above-described embodiments, and various design modifications are possible without departing from the spirit of the present invention. For example, in each of the above-described embodiments, the terminal unit 70, 170 has three terminals, but the number of terminals is not limited to three. As long as there are multiple terminals, there may be two, four or more terminals.

[0075] In the above embodiment, the cylindrical wall on the outer periphery of which the power supply terminals 57a, 57b, and 57c are arranged is configured by the pipeline connection portion 26, but the cylindrical wall is not limited to the pipeline connection portion 26. The cylindrical wall may be a cylindrical structure that is not intended for pipeline connection. In the above embodiment, the arc surface 60, which is a chamfered portion, is provided at the outer circumferential corner of the axial end of the pipe connection portion 26, which is a cylindrical wall, but the chamfered portion is not limited to the arc surface. The chamfered portion may also be formed by a flat surface. Furthermore, in the above embodiment, the terminal units 70, 170 are applied to the power supply unit of the fuel supply device, but the terminal units 70, 170 can be applied to devices other than the power supply unit of the fuel supply device. [Explanation of symbols]

[0076] 1...fuel supply device, 2...fuel tank, 3...installation wall, 4...opening, 10...fuel pump, 11...pump holding member, 12...suction filter, 13...casing, 14...electric motor, 15...base block, 16...pump holding block, 17...cover block, 17a...locking piece, 17b...cap portion, 18...suction pipe, 19...base portion, 20...fixed flange portion, 20a...seal accommodating portion, 21...base side connecting portion, 22...pump holding portion, 22u...upper wall, 22l...lower wall, 22s...base wall, 23...holding block side connecting portion, 25...discharge pipe, 26...pipe connection portion (cylindrical wall), 27...rib, 28...impeller, 29...check valve, 30...discharge passage, 31...regulator valve, 32...support wall, 34...engagement protrusion, 3 7 ... locking hole, 40 ... engagement piece, 45 ... terminal arrangement portion, 50 ... rotating shaft, 51 ... pipe connection portion, 52 ... connector connection portion, 53 ... fuel supply port, 54a, 54b, 54c, 154b ... terminal terminal, 55a, 55b, 55c ... electric cable, 57a, 57b, 57c ... power supply terminal, 60 ... arc surface (chamfered portion), 65a, 65b, 65c ... guide wall, 65as, 6 5cs...side wall, 66...retaining block, 70,170...terminal unit, 71...connector side connection portion, 72...motor side connection portion, 73...relay portion, 74...lower end bent portion, 75...upward extension portion, 76...crank-shaped portion, 76a...first bent portion, 76b...second bent portion, 76c...connection portion, 77...coating portion, 78...protrusion, 79...premolded resin, 80...opening.

Claims

1. a plurality of terminals each having a connector-side connection portion protruding in one direction and a motor-side connection portion protruding in a direction substantially perpendicular to the connector-side connection portion and having a width greater than that of the connector-side connection portion; A terminal unit in which the connector-side connection portions of the plurality of terminals are arranged side by side in a row, Each of the terminals is a strip-shaped metal piece that extends continuously in one direction and is bent in the thickness direction at a midpoint in the extension direction, so that one end side in the extension direction is the connector side connection portion and the other end side is the motor side connection portion, A terminal unit characterized in that all of the terminals are arranged such that when the connector side connection portions are arranged horizontally in a row, adjacent motor side connection portions in the arrangement direction are shifted in the plate thickness direction.

2. The terminals are connected to each other by a premolded resin at a portion of their extending direction, The terminal unit according to claim 1, characterized in that an application portion of an intermediary agent is provided in a portion of each of the terminals that is approximately the same width as the motor side connection portion to fix the molded resin and each of the terminals during the molding process.

3. The terminals are provided three times, The motor side connection portions of the three terminals are arranged so that the central motor side connection portion is shifted in the thickness direction of the plate relative to the two motor side connection portions on either side, and the two motor side connection portions on either side are arranged in positions that are not shifted in the thickness direction of the plate.

4. a fuel pump having an electric motor for driving the fuel pump; a pump holding member for holding the fuel pump; a terminal unit for electrically connecting terminals of a power supply connector to the electric cables of the electric motor, 4. The fuel supply device according to claim 3, wherein the terminal unit is a terminal unit, and a portion of each of the terminals is embedded in a resin block portion of the pump holding member.

5. the resin block portion is provided with a terminal arrangement portion having a semicircular shape in a plan view adjacent to a pump holding portion that holds the fuel pump, 5. The fuel supply device according to claim 4, characterized in that the motor side connection portion of one of the three terminals is arranged near the top of the terminal arrangement portion, and the motor side connection portions of the remaining two terminals are arranged at positions spaced apart from the top of the terminal arrangement portion.

6. the resin block portion has three guide walls surrounding the outside of the motor-side connection portion of each of the terminals, 5. The fuel supply device according to claim 4, wherein each of the guide walls is provided with an opening that reaches a base end of the exposed portion of the terminal.

7. 7. The fuel supply device according to claim 6, wherein the three guide walls are formed in a block shape in which a guide wall covering the outside of the two motor-side connection portions on either side is overlapped with a guide wall covering the outside of the central motor-side connection portion, and the openings of all of the guide walls face in one direction and open to the outside.

8. the pump holding member is provided with a cylindrical wall whose axial direction is oriented in a direction intersecting with the extending direction of the motor-side connecting portion, and whose end in the axial direction on the terminal side is spaced apart from the extending end of the motor-side connecting portion in a direction perpendicular to the axial direction, three power supply terminals of the electric motor connected to the electric cable are disposed on a semicircular portion of the outer periphery of the cylindrical wall on a side away from the motor side connection portion, 5. The fuel supply device according to claim 4, wherein a chamfer is provided at an outer circumferential corner of the end portion of the cylindrical wall.

Images