WO2019150975A1

WO2019150975A1 - Fuel supply device

Info

Publication number: WO2019150975A1
Application number: PCT/JP2019/001281
Authority: WO
Inventors: 哲平松本; 岡薗　哲郎
Original assignee: 株式会社デンソー
Priority date: 2018-01-30
Filing date: 2019-01-17
Publication date: 2019-08-08
Also published as: JP2019132161A; JP7000880B2

Abstract

A suction filter is provided at a vertically lower side of a fuel pump so as to be connected with an intake port of the fuel pump, and is capable of removing foreign matter in the fuel drawn in by the fuel pump. A support member (60) connects a pump module (30) and another member (20) provided inside a fuel tank, and supports the pump module (30). The pump module (30) has prongs (80) including first extending parts (81) extending in a first direction and second extending parts (82) extending in the first direction while forming prong gaps (S1) serving as gaps with the first extending parts (81). The support member (60) has: a connecting part (61) capable of connecting to the pump module (30); fitting holes (62) in which the prongs (80) are fitted in the inner sides, the fitting holes (62) being formed so as to penetrate the connecting part (61) in the first direction; and bridging parts (63) formed so as to be at least partially positioned in the prong gaps (S1).

Description

Fuel supply device

Cross-reference of related applications

This application is based on patent application No. 2018-013396 filed on Jan. 30, 2018, the contents of which are incorporated herein by reference.

The present disclosure relates to a fuel supply apparatus.

Conventionally, an in-tank type fuel supply device in which a fuel pump is installed in a fuel tank and the fuel in the fuel tank is sucked and discharged is known. For example, in the fuel supply device described in Patent Document 1, a suction filter is disposed on the lower side in the vertical direction of the fuel pump of the pump module, and the pump module is supported by a support member that connects the sub tank in the fuel tank and the pump module. doing. In this fuel supply device, the vibration of the pump module is prevented from being transmitted to the outside of the fuel tank by the elastically deformable suction filter and the support member.

JP 2004-190661 A

By the way, in the fuel supply apparatus of patent document 1, the connection part of a support member is only connected by fitting to the protrusion of a pump module. Further, the arm portion of the support member that connects the sub tank and the pump module is formed in a straight line, and the degree of elastic deformation is considered to be small. In recent years, the vibration absorption load of the pump module tends to increase as the weight of the pump module increases and the vibration environment increases. For this reason, when excessive vibration occurs in the pump module, the connecting portion of the support member cannot sufficiently follow the movement of the protrusion of the pump module, the fitting state between the connecting portion and the protrusion is released, and the supporting member becomes the pump module. May come off. If the support member is detached from the pump module, the vibration of the pump module cannot be sufficiently suppressed, and the vibration may be transmitted to the outside of the fuel tank.
An object of the present disclosure is to provide a fuel supply device that can maintain the effect of suppressing vibration of the pump module for a long period of time.

The fuel supply device according to the first aspect of the present disclosure includes a pump module, a suction filter, and a support member. The pump module has a fuel pump that is housed in a fuel tank and sucks and discharges fuel in the fuel tank. The suction filter is provided on the lower side in the vertical direction of the fuel pump so as to be connected to the suction port of the fuel pump, and can remove foreign matters in the fuel sucked by the fuel pump. The support member connects the other member provided in the fuel tank and the pump module to support the pump module. The suction filter and the support member can suppress the vibration of the pump module from being transmitted to the outside of the fuel tank.

The pump module includes a first extending portion extending in the first direction, and a claw portion including a second extending portion extending in the first direction while forming a claw gap as a gap between the first extending portion and the first extending portion. ing. The support member includes a connection portion connectable to the pump module, a fitting hole portion that is formed so as to penetrate the connection portion in the first direction, and in which the claw portion is fitted, and at least a part thereof is positioned in the claw portion gap. It has a formed bridging part. Therefore, for example, when excessive vibration occurs in the pump module and the claw portion moves so as to come out of the fitting hole portion, even if trying to deform so that the first extension portion and the second extension portion approach, The deformation is suppressed. Thereby, it is suppressed that a nail | claw part slips out from a fitting hole part, and it can suppress that a supporting member remove | deviates from a pump module. Therefore, the effect of suppressing the vibration of the pump module can be maintained for a long time.

In the fuel supply device according to the second aspect of the present disclosure, the support member includes an attachment portion attached to the other member, a connection portion connectable to the pump module, and an attachment portion that connects the attachment portion and the connection portion. It has a plate-like arm part formed integrally with the connection part. The arm portion has a bent portion formed so as to be bent at least once in a third direction which is a direction from the connection portion toward the attachment portion. Therefore, the arm portion is sufficiently elastically deformable between the attachment portion attached to the other member and the connection portion connected to the pump module. Thereby, for example, even if excessive vibration occurs in the pump module, the connection portion of the support member can sufficiently follow the movement of the pump module, and the connection state between the connection portion and the pump module is prevented from being released. it can. Therefore, it is possible to suppress the support member from being detached from the pump module and maintain the effect of suppressing the vibration of the pump module for a long time.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing
FIG. 1 is a cross-sectional view showing a fuel supply device according to a first embodiment. FIG. 2 is a top view showing the fuel supply apparatus according to the first embodiment, FIG. 3 is a perspective view showing a part of a pump module and a support member of the fuel supply apparatus according to the first embodiment. FIG. 4 is a perspective view showing the claw portion of the pump module of the fuel supply device according to the first embodiment and its vicinity. FIG. 5 is a perspective view showing a support member of the fuel supply apparatus according to the first embodiment. FIG. 6 is a cross-sectional view showing the claw portion of the pump module of the fuel supply device according to the first embodiment and the vicinity thereof. FIG. 7 is a cross-sectional view showing the claw portion of the pump module of the fuel supply device according to the first embodiment and the vicinity thereof, and is a view showing a state when the claw portion moves relative to the connection portion; FIG. 8 is a perspective view showing a support member of a fuel supply device according to a comparative embodiment, FIG. 9 is a cross-sectional view showing the claw portion of the pump module of the fuel supply device according to the comparative embodiment and its vicinity FIG. 10 is a cross-sectional view showing the claw portion of the pump module of the fuel supply device according to the comparative embodiment and the vicinity thereof, and is a view showing a state when the claw portion moves relative to the connection portion; FIG. 11 is a cross-sectional view showing the claw portion of the pump module of the fuel supply device according to the second embodiment and the vicinity thereof. FIG. 12 is a top view showing the fuel supply apparatus according to the third embodiment, FIG. 13 is a perspective view showing a part of a pump module and a support member of the fuel supply apparatus according to the third embodiment. FIG. 14 is a perspective view showing a support member of the fuel supply apparatus according to the third embodiment, FIG. 15 is a perspective view showing a support member of the fuel supply apparatus according to the fourth embodiment. FIG. 16 is a perspective view showing a support member of the fuel supply apparatus according to the fifth embodiment, FIG. 17 is a top view showing the support member of the fuel supply apparatus according to the fifth embodiment, FIG. 18 is a top view showing a support member of the fuel supply apparatus according to the sixth embodiment, FIG. 19 is a top view showing the fuel supply device according to the seventh embodiment, FIG. 20 is a perspective view showing a fuel supply apparatus according to the eighth embodiment.

Hereinafter, fuel supply devices according to a plurality of embodiments will be described with reference to the drawings. Note that, in a plurality of embodiments, substantially the same components are denoted by the same reference numerals, and description thereof is omitted. In the plurality of embodiments, substantially the same constituent parts have the same or similar operational effects.

(First embodiment)
1 and 2 show a fuel supply device according to a first embodiment. The fuel supply device 10 includes a lid member 11, a pump module 30, a suction filter 50, a support member 60, and the like. The lid member 11 is formed in a disk shape, and is locked and attached to the opening 3 of the upper wall 2 of the resin fuel tank 1. The fuel tank 1 may be made of metal. Parts other than the lid member 11 of the fuel supply device 10 are accommodated in the fuel tank 1. The fuel tank 1 has another tank part (not shown) capable of transferring fuel by a transfer jet pump to the tank part 4 accommodating the pump module 30. Further, a sub tank 20 as another member is provided in the fuel tank 1.

The pump module 30 has a fuel pump 40 and the like. A fuel discharge pipe 12 and an electrical connector 14 are assembled to the lid member 11. The fuel discharge pipe 12 is a pipe that supplies the fuel discharged from the fuel pump 40 to the outside of the fuel tank 1. The electrical connector 14 supplies power to the fuel pump 40 through a lead wire.

One end of the metal pipe 16 is press-fitted into the lid member 11, and the other end is loosely inserted into an insertion portion 18 (see FIG. 2) formed in the sub tank 20. The spring 17 biases the lid member 11 and the sub tank 20 away from each other. Therefore, even if the resin fuel tank 1 expands and contracts due to a change in internal pressure or a change in fuel amount due to a temperature change, the bottom of the sub tank 20 is always pressed against the bottom inner wall of the fuel tank 1 by the urging force of the spring 17. Yes.

The pump module 30 and the suction filter 50 are accommodated in the sub tank 20. The pump module 30 includes a fuel filter 32, a fuel pump 40, a pressure regulator 49, and the like. The fuel filter 32 includes a filter case 33 including a case main body 34 and a lid 36, and a filter element 39, and covers the outer periphery of the fuel pump 40. The filter case 33 including the case body 34 and the lid 36 is a pump casing that covers the fuel pump 40. The case body 34 and the lid 36 made of resin are fixed by, for example, welding. The inflow port 35 of the case body 34 is fitted and coupled to the discharge port 42 of the fuel pump 40. The filter element 39 removes foreign matters contained in the fuel discharged from the fuel pump 40.

The fuel pump 40 is housed vertically in the sub tank 20 in the state shown in FIG. 1, that is, with the fuel discharge side (discharge port 42 side) in the vertical direction upper side and the fuel suction side in the vertical direction lower side. . In the fuel pump 40, a connector portion 44 (see FIG. 2) connected to the electrical connector 14 with a lead wire is exposed from the lid 36. The fuel pump 40 contains a motor (not shown) inside, and generates a fuel suction input by a rotating member such as an impeller that rotates together with the motor. The pressure regulator 49 has an inlet connected to an outlet (not shown) of the case body 34, and regulates the pressure of the fuel discharged from the fuel pump 40 and from which foreign matters are removed by the filter element 39. The pressure-adjusted fuel passes through the bellows pipe 19 and travels toward the fuel discharge pipe 12.

The suction filter 50 is connected to the suction port 41 of the fuel pump 40 and is in contact with the bottom inner wall of the sub tank 20. The suction filter 50 is covered with a non-woven fabric 52 as a filter medium on the outer periphery, and removes relatively large foreign matters contained in the fuel sucked from the sub tank 20 by the fuel pump 40. The bottom of the nonwoven fabric 52 is in contact with the bottom inner wall of the sub tank 20.

A jet pump 59 (see FIG. 2) as a supply means for supplying fuel into the sub tank 20 is attached to the outside of the sub tank 20. The jet pump 59 ejects surplus fuel discharged from the pressure regulator 49 or surplus fuel returned from the engine side, and supplies the fuel in the fuel tank 1 into the sub tank 20. Thereby, even if the amount of fuel in the fuel tank 1 decreases, the sub tank 20 is filled with fuel.

As shown in FIGS. 1 and 2, the support member 60 supports the pump module 30 by connecting the lid 36 of the fuel filter 32 of the pump module 30 and the sub tank 20 on the upper side in the vertical direction of the suction filter 50. The lid 36 is above the center of gravity 200 of the pump module 30 in the vertical direction and is located on the upper surface of the pump module 30.

2 to 4, the pump module 30 has a claw portion 80. The claw portion 80 is formed integrally with the lid 36 of the filter case 33 by resin. In the present embodiment, two claw portions 80 are formed on the lid 36 in total. A semicircular connector hole 360 through which the connector 44 of the fuel pump 40 is exposed is formed at the center of the lid 36. The connector hole 360 is mostly formed in one area A1 when the cover 36 is divided into two areas A1 and A2 on a virtual plane VP1 including the central axis of the cover 36 (see FIG. 2). The claw portion 80 is formed in the other region A2 on the lid upper surface 361 which is the surface of the lid 36 opposite to the case main body 34. Here, the two claw portions 80 are formed on the outer edge portion of the lid 36 so as to be separated from each other by a predetermined distance.

The claw portion 80 is formed so as to extend from the lid upper surface 361 of the lid 36 in a first direction which is a direction perpendicular to the lid upper surface 361. Here, the first direction coincides with the vertical direction in a state where the pump module 30 is provided inside the sub tank 20. The claw part 80 has a first extending part 81 and a second extending part 82. The first extending portion 81 is formed so as to extend from the lid upper surface 361 in the first direction. The second extending portion 82 is formed to extend from the lid upper surface 361 in the first direction while forming a claw portion gap S1 as a gap with the first extending portion 81. Here, the surface of the first extending portion 81 and the surface of the second extending portion 82 that face each other and form the claw gap S1 are formed in a planar shape so as to be parallel to the virtual plane VP1.

As shown in FIGS. 2 to 5, the support member 60 includes a connecting portion 61, a fitting hole portion 62, a bridging portion 63, an arm portion 64, an attaching portion 65, a connecting portion 66, and the like. The connecting portion 61, the bridging portion 63, the arm portion 64, the attachment portion 65, and the connecting portion 66 are integrally formed of, for example, resin.

The connecting portion 61 is formed in a long plate shape, and can be connected to the lid upper surface 361 so that one surface 611 faces and contacts the lid upper surface 361 of the lid 36. The connecting portion 61 is connected to the other area A2 of the two areas A1 and A2 of the lid 36. A rib 610 that rises toward the other surface 612 of the connection portion 61 is formed on the outer edge portion of the connection portion 61.

The fitting hole 62 is formed in a substantially circular shape so as to penetrate the connecting portion 61 in the plate thickness direction. That is, the fitting hole 62 is formed so as to penetrate the connecting portion 61 in the first direction in a state where the connecting portion 61 is connected to the lid 36. Two fitting holes 62 are formed, one at each end in the longitudinal direction of the connecting portion 61 so as to correspond to the two claw portions 80 formed on the lid 36. The two claw portions 80 are respectively fitted in the two fitting hole portions 62.

The bridging portion 63 is formed in a plate shape integrally with the connecting portion 61 so as to bridge the outer edge portion of the fitting hole 62 on the other surface 612 side of the connecting portion 61, that is, across the fitting hole 62. Yes. The bridging portion 63 corresponds to each of the two fitting hole portions 62, and a total of two bridging portions 63 are formed in the connecting portion 61. Here, the bridging portion 63 is formed so as to pass through the central axis of the fitting hole 62 and to be parallel to the virtual plane VP1 (see FIG. 2). A part of the bridging portion 63 is located in the claw portion gap S1 in a state where the claw portion 80 is fitted in the fitting hole 62 (see FIGS. 2 to 4).

The arm portion 64 is formed integrally with the connection portion 61 so as to extend from the end portion in the longitudinal direction of the connection portion 61 in a plate shape toward the radially outer side of the lid upper surface 361 and toward the first direction, that is, the vertical direction upper side. That is, the arm portion 64 is formed to be inclined with respect to the lid upper surface 361 and the other surface 612. Two arm portions 64 are formed, one at each end of the connecting portion 61 in the longitudinal direction. A rib 640 is formed on the outer edge portion of the arm portion 64 so as to rise to the surface side opposite to the lid of the arm portion 64.

The attachment portion 65 is formed integrally with the arm portion 64 so as to be connected to the end portion of the arm portion 64 opposite to the connection portion 61. Two attachment portions 65 are formed, one at each end of the two arm portions 64. The attachment portion 65 has an inner portion 651, an outer portion 652, and an engaging portion 653. The interior 651 is formed to extend in a plate shape from the end of the arm portion 64 toward the first direction, that is, the upper side in the vertical direction. The outer 652 is formed to extend from the end of the inner 651 opposite to the arm portion 64 toward the radially outer side of the lid 36, and then to extend in a plate shape toward the first direction, that is, the lower side in the vertical direction. Yes. The engaging portion 653 is formed so as to penetrate the outer 652 in the plate thickness direction. The attachment portion 65 is attached to the sub tank 20 so that the upper end portion of the sub tank 20 is positioned between the inner portion 651 and the outer portion 652. When the attachment portion 65 is attached to the upper end portion of the sub tank 20, the projection 21 formed on the outer peripheral wall of the sub tank 20 is fitted into the engagement portion 653. As a result, the engaging portion 653 is engaged with the protrusion 21 and the attachment portion 65 is restricted from being detached from the sub tank 20. As described above, the attachment portion 65 is attached to the sub tank 20 by snap fitting.

The connecting portion 66 is formed integrally with the attaching portion 65 so as to connect the interiors 651 of the two attaching portions 65. The connecting portion 66 is formed in a curved plate shape along the inner peripheral wall of the sub tank 20.

Next, the configuration of the claw portion 80 and the bridging portion 63 will be described in more detail. As shown in FIG. 6, the claw portion 80 includes a small diameter portion 801, a step portion 802, a large diameter portion 803, a chamfered portion 804, and a gap forming portion 805. The small-diameter portion 801 is formed in a substantially cylindrical shape so as to extend from the lid upper surface 361 of the lid 36 in the first direction, that is, in the vertical direction upper side. The stepped portion 802 is formed in a substantially cylindrical shape so as to extend from the end of the small diameter portion 801 opposite to the lid 36 in the first direction, that is, in the vertical direction. Here, the stepped portion 802 is formed so that the outer diameter increases from one side in the first direction toward the other side. The large diameter portion 803 is formed in a substantially cylindrical shape so as to extend from the end portion of the stepped portion 802 opposite to the small diameter portion 801 in the first direction, that is, the upper side in the vertical direction. Here, the large diameter portion 803 is formed such that the outer diameter d2 is larger than the outer diameter d1 of the small diameter portion 801. The chamfered portion 804 is formed in a substantially cylindrical shape so as to extend from the end of the large diameter portion 803 opposite to the stepped portion 802 in the first direction, that is, in the vertical direction. Here, the chamfered portion 804 is formed so that the outer diameter becomes smaller from one side in the first direction toward the other side. In other words, the claw portion 80 has a chamfered corner at the end opposite to the lid 36.

The gap forming portion 805 is formed to extend from the chamfered portion 804 of the claw portion 80 toward the small diameter portion 801 so as to divide the claw portion 80 into two. Thereby, the claw part gap S 1 is formed inside the gap forming part 805. One of the claw portions 80 divided into two by the gap forming portion 805 corresponds to the first extending portion 81, and the other corresponds to the second extending portion 82.

As shown in FIG. 6, hole chamfered

portions

621 and 622 are formed at both ends of the fitting hole portion 62. The hole chamfer 621 is formed at the end of the fitting hole 62 on the lid 36 side. The hole chamfered portion 621 is formed so that the inner diameter increases from the other side in the first direction toward the one side. The hole chamfered portion 622 is formed at the end of the fitting hole 62 opposite to the lid 36. The hole chamfered portion 622 is formed so that the inner diameter increases from one side in the first direction to the other side. That is, the fitting hole 62 has chamfered corners at both ends.

In a state where the claw portion 80 is fitted in the fitting hole 62, the small diameter portion 801 is located inside the fitting hole 62, and the large diameter portion 803 is located outside the fitting hole 62. Here, the minimum inner diameter of the fitting hole portion 62, that is, the inner diameter d3 of the portion other than the hole chamfered

portions

621 and 622 of the fitting hole portion 62 is slightly larger than the outer diameter of the small diameter portion 801 of the claw portion 80, and The outer diameter of the large diameter portion 803 of the claw portion 80 is smaller. Further, the thickness of the connecting portion 61 is slightly larger than the axial length of the small diameter portion 801 of the claw portion 80. Therefore, when the claw 80 moves out of the fitting hole 62, that is, when the claw 80 moves to one side in the first direction with respect to the connecting portion 61 of the support member 60, the stepped portion 802 of the claw 80 is fitted into the fitting hole 62. The hole chamfered portion 622 is locked. As a result, the claw 80 is restricted from coming out of the fitting hole 62.

As shown in FIGS. 5 and 6, the bridging portion 63 has a main body plate portion 631, a tapered portion 632, and a support portion 633. The main body plate portion 631 is formed in a plate shape, and is located on the center axis of the fitting hole portion 62 on the upper side in the vertical direction of the fitting hole portion 62. The main body plate portion 631 is formed so that the surface direction is parallel to the first direction. The tapered portion 632 is formed in a plate shape on one side in the first direction with respect to the main body plate portion 631. The tapered portion 632 is formed in a tapered shape so that the width, that is, the plate thickness, decreases from the other side in the first direction toward the one side. As described above, the bridging portion 63 has the tapered portion 632 that is formed in a tapered shape so that the width becomes smaller toward the one side from the other side in the first direction at one end portion in the first direction. Yes. The support portion 633 is formed integrally with the main body plate portion 631, the taper portion 632, and the connection portion 61 so as to support both end portions of the main body plate portion 631 and the taper portion 632.

As shown in FIG. 6, in a state where the claw portion 80 is fitted in the fitting hole portion 62, the main body plate portion 631 and the taper portion 632 of the bridging portion 63 are inside the gap forming portion 805 of the claw portion 80, that is, It is located in the claw gap S1. Here, two opposing surfaces of the gap forming portion 805 and both surfaces of the main body plate portion 631 are substantially parallel. The distance between two opposing surfaces of the gap forming portion 805, that is, the width w1 of the claw gap S1 in the second direction, which is a direction perpendicular to the first direction, is larger than the plate thickness t1 of the main body plate portion 631. Here, the second direction coincides with the horizontal direction when the pump module 30 is provided inside the sub tank 20. A predetermined gap is formed between the two opposing surfaces of the gap forming portion 805 and the main body plate portion 631. Further, in a state where the lid upper surface 361 and one surface 611 of the connecting portion 61 are in contact, the end surface of the main body plate portion 631 opposite to the tapered portion 632 is the end surface of the claw portion 80 opposite to the lid 36. It is located on substantially the same plane.

Further, the end of the taper portion 632 on the main body plate portion 631 side is located on the main body plate portion 631 side from the other surface 612 of the connection portion 61. That is, the end portion on the other side in the first direction of the taper portion 632 is in the first direction from the portion around the fitting hole portion 62 in the other surface 612 that is the other side surface in the first direction of the connection portion 61. Is located on the other side. Further, the end portion of the taper portion 632 opposite to the main body plate portion 631 is located inside the fitting hole portion 62. That is, the end portion on one side of the taper portion 632 in the first direction is in the first direction from the portion around the fitting hole portion 62 on the other surface 612 that is the other surface in the first direction of the connection portion 61. Located on one side of

Next, the state of each part of the member when the connection part 61 is connected to the pump module 30 by fitting the claw part 80 into the fitting hole part 62 will be described. First, the tip of the claw portion 80, that is, the chamfered portion 804 is inserted into the fitting hole portion 62 from the one surface 611 side of the connecting portion 61. At this time, the chamfered portion 804 of the claw portion 80 comes into contact with the hole chamfered portion 622 of the fitting hole portion 62. When the claw portion 80 is further pushed into the fitting hole portion 62, the claw portion 80 is deformed so that the tip end portion of the first extension portion 81 and the tip end portion of the second extension portion 82 approach each other. When the claw portion 80 is further pushed into the fitting hole portion 62, the claw portion 80 moves against the connection portion 61 while bringing the tip end portion of the first extension portion 81 and the tip end portion of the second extension portion 82 into contact with the taper portion 632. Move to the other side in the first direction. At this time, the distal end portion of the first extending portion 81 and the distal end portion of the second extending portion 82 are deformed so as to be expanded by the tapered portion 632. When the claw portion 80 is further pushed into the fitting hole portion 62, the large diameter portion 803 of the claw portion 80 comes out of the fitting hole portion 62, and one surface 611 of the connecting portion 61 comes into contact with the lid upper surface 361. Thereby, the fitting of the claw 80 into the fitting hole 62, that is, the connection of the connecting portion 61 to the pump module 30 is completed. Thus, the connection part 61 is connected to the pump module 30 by a snap fit.

Next, the state of each part of the member when excessive vibration occurs in the pump module 30 will be described in comparison with a comparative form. As shown in FIG. 7, in the present embodiment, the pump module 30 is excessively vibrated and the claw portion 80 moves out of the fitting hole portion 62, that is, the claw portion 80 is first with respect to the connection portion 61. When moving to one side in the direction, the stepped portion 802 of the claw portion 80 is pushed radially inward by the hole chamfered portion 622 of the fitting hole portion 62, and the leading end portion of the first extending portion 81 and the second extending portion 82. The tip is deformed so that it approaches. However, in the present embodiment, since the bridging portion 63 is located between the first extending portion 81 and the second extending portion 82, that is, in the claw portion gap S1, the distal end portion of the first extending portion 81 and the second extending portion Even if it tries to be deformed so as to approach the tip of the extending portion 82, the deformation is suppressed by the main body plate portion 631 of the bridging portion 63. Therefore, the stepped portion 802 of the claw portion 80 is locked to the hole chamfered portion 622 of the fitting hole portion 62, and the claw portion 80 is prevented from coming out of the fitting hole portion 62. Thereby, it can suppress that the supporting member 60 remove | deviates from the pump module 30. FIG.

As shown in FIG. 8, the comparative form is different from the present embodiment in that the support member 60 does not have the bridging portion 63. As shown in FIG. 9, in the comparative embodiment, there is a space in the claw portion gap S 1 in a state where the claw portion 80 is fitted in the fitting hole portion 62. As shown in FIG. 10, in the comparative embodiment, when the pump module 30 is excessively vibrated and the claw portion 80 moves so as to come out of the fitting hole portion 62, the stepped portion 802 is moved in the radial direction by the hole chamfered portion 622. It is pushed inward and deforms so that the tip end portion of the first extension portion 81 and the tip end portion of the second extension portion 82 approach each other. In the comparative form, since there is only a space in the claw part gap S1, the tip part of the first extension part 81 and the tip part of the second extension part 82 are greatly deformed so as to approach each other. Thus, the stepped portion 802 of the claw portion 80 is not locked to the hole chamfered portion 622, and the claw portion 80 moves to one side in the first direction with respect to the connecting portion 61. Therefore, there is a possibility that the claw portion 80 may come out from the fitting hole portion 62. As a result, the support member 60 may be detached from the pump module 30. As described above, the present embodiment includes the bridging portion 63, and thus has a high effect of suppressing the claw portion 80 from coming out of the fitting hole portion 62 as compared with the comparative embodiment.

Next, vibration reduction of the fuel pump 40 will be described. The pump module 30 contacts the bottom inner wall of the sub tank 20 through the suction filter 50 and is connected to the sub tank 20 by the support member 60. The suction filter 50 receives the weight of the pump module 30 and the elastic force that the support member 60 applies to the pump module 30. When the motor of the fuel pump 40 operates and the fuel pump 40 sucks and discharges fuel, the fuel pump 40 vibrates. The vibration of the fuel pump 40 tends to be transmitted to the sub tank 20 via the support member 60 and the suction filter 50. However, the outer periphery of the suction filter 50 is thickly covered with the nonwoven fabric 52, and the nonwoven fabric 52 is in contact with the bottom inner wall of the sub tank 20, so that vibration transmitted from the fuel pump 40 to the suction filter 50 is absorbed by the suction filter 50. Is reduced. Therefore, transmission of vibration of the fuel pump 40 from the sub tank 20 to the fuel tank 1 is reduced.

Further, since the center of gravity 200 of the pump module 30 is located between the portion connected to the support member 60 by snap fit and the portion connected to the suction filter 50, the vibration of the fuel pump 40 and the vehicle It is possible to reduce the shaking of the pump module 30 relative to the sub tank 20 due to the shaking.

In the present embodiment, the pump module 30 and the suction filter 50 are placed inside the sub tank 20, and the claw 80 of the pump module 30 is fitted into the fitting hole 62 of the connection portion 61 of the support member 60. Is connected to the pump module 30, and the attachment portion 65 of the support member 60 is attached to the upper end portion of the sub tank 20, so that the sub tank 20, the pump module 30, the suction filter 50, and the support member 60 are transported in an assembled state. It can be installed in the fuel tank 1 of the vehicle. In this state, the pump module 30 is supported by the support member 60, so that the position in the sub tank 20 is stabilized. In addition, for example, when the pump with the sub-tank 20 assembled integrally is dropped from a predetermined height, the pump module 30 may vibrate greatly and a large downward force is applied to the pump module 30 in the vertical direction. The bridging portion 63 located in the claw portion gap S 1 can prevent the claw portion 80 from coming out of the fitting hole portion 62 of the connection portion 61 and the connection portion 61 from being detached from the pump module 30.

As described above, the fuel supply device 10 of the present embodiment includes the pump module 30, the suction filter 50, and the support member 60. The pump module 30 includes a fuel pump 40 that is accommodated in the fuel tank 1 and sucks and discharges fuel in the fuel tank 1. The suction filter 50 is provided on the lower side in the vertical direction of the fuel pump 40 so as to be connected to the suction port 41 of the fuel pump 40 and can remove foreign matters in the fuel sucked by the fuel pump 40. The support member 60 supports the pump module 30 by connecting the sub-tank 20 as another member provided in the fuel tank 1 and the pump module 30. The suction filter 50 and the support member 60 can suppress the vibration of the pump module 30 from being transmitted to the outside of the fuel tank 1.

The pump module 30 includes a first extending portion 81 extending upward in the vertical direction, which is the first direction, and a second extending in the first direction while forming a claw portion gap S1 as a gap between the first extending portion 81 and the first extending portion 81. A claw portion 80 including the extending portion 82 is provided. The support member 60 includes a connection portion 61 that can be connected to the pump module 30, a fitting hole portion 62 that is formed so as to penetrate the connection portion 61 in the first direction, and into which the claw portion 80 is fitted, and at least a portion of the support member 60. It has the bridge part 63 formed so that it may be located in part gap S1. Therefore, for example, when excessive vibration is generated in the pump module 30 and the claw portion 80 moves so as to come out of the fitting hole portion 62, the first extending portion 81 and the second extending portion 82 may be deformed so as to approach each other. The bridge portion 63 suppresses the deformation. Thereby, it is possible to suppress the claw portion 80 from coming out of the fitting hole portion 62 and to prevent the support member 60 from being detached from the pump module 30. Therefore, the effect of suppressing the vibration of the pump module 30 can be maintained for a long time.

Further, in the present embodiment, the bridging portion 63 is formed in a tapered shape so that the width becomes smaller toward the one side from the other side in the first direction at the end portion on the one side in the first direction, and at least a part thereof is formed. It has a taper part 632 located in the claw part gap S1. Therefore, when the claw portion 80 is fitted into the fitting hole portion 62, the claw portion 80 is connected to the tapered portion 632 while bringing the tip portion of the first extending portion 81 and the tip portion of the second extending portion 82 into contact with the tapered portion 632. It moves to the other side in the first direction with respect to 61, and the fitting into the fitting hole 62 is completed. As described above, the taper portion 632 can suppress the bridging portion 63 from being an obstacle to the fitting of the claw portion 80.

Further, in the present embodiment, the end portion on the other side in the first direction of the taper portion 632 is the periphery of the fitting hole portion 62 in the other surface 612 that is the other side surface in the first direction of the connection portion 61. It is located on the other side in the first direction from the part. Therefore, the taper portion 632 can more effectively suppress the bridging portion 63 from becoming an obstacle to the fitting of the claw portion 80.

(Second Embodiment)
A part of the fuel supply apparatus according to the second embodiment is shown in FIG. The second embodiment is different from the first embodiment in the configuration of the bridging portion 63 of the support member 60.

In the second embodiment, the width in the second direction of the main body plate portion 631 of the bridging portion 63, that is, the plate thickness t1, is the same as the width w1 in the second direction of the claw portion gap S1. Therefore, the two opposing surfaces of the gap forming portion 805, that is, the opposing surfaces of the first extending portion 81 and the second extending portion 82, are in contact with the main body plate portion 631.

In the present embodiment, excessive vibration is generated in the pump module 30 and the claw 80 moves out of the fitting hole 62, that is, the claw 80 moves to one side in the first direction with respect to the connecting portion 61. Then, the stepped portion 802 of the claw portion 80 is pushed radially inward by the hole chamfered portion 622 of the fitting hole portion 62 so that the distal end portion of the first extending portion 81 and the distal end portion of the second extending portion 82 approach each other. Try to transform. However, in the present embodiment, the bridging portion 63 is located in the claw gap S1, and the opposing surfaces of the first extending portion 81 and the second extending portion 82 and the main body plate portion 631 are in contact with each other. Even if the tip of the portion 81 and the tip of the second extending portion 82 are to be deformed so as to approach each other, the deformation is reliably suppressed by the main body plate portion 631 of the bridging portion 63. Therefore, the stepped portion 802 of the claw portion 80 is locked to the hole chamfered portion 622 of the fitting hole portion 62, and the claw portion 80 is reliably suppressed from coming out of the fitting hole portion 62.

As described above, in the present embodiment, the width t1 in the second direction that is a direction perpendicular to the first direction in the main body plate portion 631 that is at least part of the bridging portion 63 in the first direction is the claw portion gap S1. Is the same as the width w1 in the second direction. Therefore, even if excessive vibration occurs in the pump module 30, it is possible to reliably suppress the claw portion 80 from coming out of the fitting hole portion 62. Thereby, it can suppress reliably that the supporting member 60 remove | deviates from the pump module 30. FIG.

(Third embodiment)
A part of the fuel supply apparatus according to the third embodiment is shown in FIGS. The third embodiment differs from the first embodiment in the configuration of the support member 60.

In the third embodiment, the support member 60 does not have the bridging portion 63 shown in the first embodiment. That is, the structure of the connection part 61 is the same as that of the comparative form mentioned above (refer FIG. 8, 9).

As shown in FIGS. 12 to 14, in the third embodiment, the arm portion 64 of the support member 60 does not have the rib 640 shown in the first embodiment, but has a bent portion 67. The bent portion 67 includes a first bent portion 671, a second bent portion 672, a third bent portion 673, a first flat plate portion 681, a second flat plate portion 682, and a third flat plate portion 683.

The first bent portion 671 is formed integrally with the connecting portion 61 so as to extend in the horizontal direction from the end portion in the longitudinal direction of the connecting portion 61 and then bend to the upper side in the vertical direction, that is, the other side in the first direction. Yes. The first flat plate portion 681 is formed integrally with the first bent portion 671 so as to extend from the first bent portion 671 to the other side in the first direction in a flat plate shape. The second bent portion 672 is formed integrally with the first flat plate portion 681 so as to extend from the first flat plate portion 681 to the other side in the first direction and then bend to one side in the first direction. The second flat plate portion 682 is formed integrally with the second bent portion 672 so as to extend in a flat plate shape from the second bent portion 672 to one side in the first direction. The third bent portion 673 is formed integrally with the second flat plate portion 682 so as to extend from the second flat plate portion 682 to one side in the first direction and then bend to the other side in the first direction. The third flat plate portion 683 is formed integrally with the third bent portion 673 and the attachment portion 65 so as to extend from the third bent portion 673 to the other side in the first direction in a flat plate shape and to be connected to the attachment portion 65.

Thus, the bent portion 67 is formed to be bent three times in the third direction, which is the direction from the connecting portion 61 to the mounting portion 65. Further, the bent portion 67 is formed so that the cross-sectional shape of the virtual plane VP2 parallel to the first direction and the third direction is substantially S-shaped. In this configuration, the arm portion 64 is sufficiently elastically deformable between the attachment portion 65 attached to the sub tank 20 and the connection portion 61 connected to the pump module 30. Here, when the bent portion 67 is elastically deformed, the connection portion 61 and the attachment portion 65 can be relatively moved in various directions including the first direction and the third direction. Therefore, for example, even if excessive vibration occurs in the pump module 30, the connection portion 61 of the support member 60 can sufficiently follow the movement of the pump module 30, and the connection state between the connection portion 61 and the pump module 30, that is, the claw portion It can suppress that the fitting state of 80 and the fitting hole part 62 is cancelled | released. Further, the bent portion 67 of the arm portion 64 can enhance the effect of absorbing the vibration of the pump module 30 by the support member 60.

As described above, in this embodiment, the support member 60 includes the attachment portion 65 attached to the sub tank 20 as another member, the connection portion 61 connectable to the pump module 30, and the attachment portion 65 and the connection portion 61. The plate-like arm part 64 formed integrally with the attachment part 65 and the connection part 61 is connected. The arm portion 64 has a bent portion 67 formed so as to be bent at least once in a third direction that is a direction from the connecting portion 61 toward the mounting portion 65. Therefore, the arm portion 64 can be sufficiently elastically deformed between the attachment portion 65 attached to the sub tank 20 and the connection portion 61 connected to the pump module 30. Thereby, for example, even if excessive vibration occurs in the pump module 30, the connection portion 61 of the support member 60 can sufficiently follow the movement of the pump module 30, and the connection state between the connection portion 61 and the pump module 30 is released. Can be suppressed. Therefore, it is possible to suppress the support member 60 from being detached from the pump module 30 and to maintain the effect of suppressing the vibration of the pump module 30 in the long term.

(Fourth embodiment)
A part of the fuel supply apparatus according to the fourth embodiment is shown in FIG. The fourth embodiment is different from the third embodiment in the configuration of the support member 60.

In the fourth embodiment, the support member 60 further includes a bridging portion 63. The fourth embodiment has the same configuration as that of the third embodiment except that the support member 60 has a bridging portion 63. That is, 4th Embodiment is a form which combined 1st Embodiment and 3rd Embodiment. Therefore, in 4th Embodiment, the effect of 1st Embodiment and the effect of 3rd Embodiment can be show | played simultaneously, and the effect which suppresses the vibration of the pump module 30 can be maintained further for a long term.

(Fifth embodiment)
A part of the fuel supply apparatus according to the fifth embodiment is shown in FIGS. The fifth embodiment is different from the fourth embodiment in the configuration of the support member 60.

In the fifth embodiment, the bent portion 67 further has a missing portion 691. The missing portion 691 includes the first bent portion 671 and the vicinity thereof, the second bent portion 672 and the vicinity thereof, and the third bent portion 673 and the vicinity thereof in the plate thickness direction inside the both ends in the width direction of the bent portion 67. A total of three are formed on one arm portion 64 so as to penetrate through. As a result, the bent portion 67 is in a state where three portions are missing in a hole shape. Therefore, compared with the fourth embodiment, the rigidity of the arm portion 64 can be reduced. Therefore, the arm portion 64 can be more easily elastically deformed between the attachment portion 65 attached to the sub tank 20 and the connection portion 61 connected to the pump module 30.

As described above, in the present embodiment, the arm portion 64 has the defect portion 691 formed so as to penetrate a part of the bent portion 67 in the plate thickness direction. Therefore, the rigidity of the arm part 64 can be reduced. Thereby, the arm part 64 can be more easily elastically deformed between the attachment part 65 attached to the sub tank 20 and the connection part 61 connected to the pump module 30. Therefore, it is possible to more effectively suppress the support member 60 from being detached from the pump module 30 and maintain the effect of suppressing the vibration of the pump module 30 in the long term.

(Sixth embodiment)
A part of the fuel supply apparatus according to the sixth embodiment is shown in FIG. The sixth embodiment differs from the fifth embodiment in the configuration of the support member 60.

In the sixth embodiment, the arm part 64 has a defect part 692 instead of the defect part 691 shown in the fifth embodiment. The missing part 692 is formed in the second bent part 672. A total of two missing portions 692 are formed on one arm portion 64 so as to extend inwardly from both ends in the width direction of the second bent portion 672. As a result, the bent portion 67 is in a state where two portions are missing in a cutout shape. Therefore, similarly to the fifth embodiment, the rigidity of the arm portion 64 can be reduced. Therefore, the arm portion 64 can be more easily elastically deformed between the attachment portion 65 attached to the sub tank 20 and the connection portion 61 connected to the pump module 30.

(Seventh embodiment)
A part of the fuel supply apparatus according to the seventh embodiment is shown in FIG. 7th Embodiment differs in the structure in the nail | claw part 80 of the pump module 30, the structure of the supporting member 60, etc. from 4th Embodiment.

In the seventh embodiment, the lid 36 of the pump module 30 has a protrusion 362. The projecting portion 362 is formed so as to project in a substantially cylindrical shape from the center of the lid upper surface 361 of the lid 36 to the axial direction of the lid 36, that is, vertically upward. The connector hole 360 is formed so as to penetrate the protrusion 362 in the axial direction.

The claw portion 80 is formed so as to extend radially outward from the outer peripheral wall of the protruding portion 362. In the present embodiment, the radial direction of the protruding portion 362 of the lid 36 corresponds to the first direction. That is, the first extending portion 81 and the second extending portion 82 of the claw portion 80 are formed so as to extend in the radial direction outside of the protruding portion 362, that is, in the first direction. Two claw portions 80 are formed in the circumferential direction at the outer edge portion of the protruding portion 362 of the lid 36. The claw portion 80 is formed at a position corresponding to the region A2 of the lid 36.

A total of two connection portions 61 of the support member 60 are formed so as to correspond to the two arm portions 64. Here, one surface 611 of the connecting portion 61 faces the outer peripheral wall of the protruding portion 362. The plate thickness direction of the connecting portion 61 substantially coincides with the radial direction of the protruding portion 362, that is, the first direction. The fitting hole 62 is formed so as to penetrate the connecting portion 61 in the plate thickness direction, that is, the first direction. In addition, the connection location of the connection part 61 and the arm part 64 is formed so that it may become substantially right angle.

The bridging portion 63 is formed in a plate shape integrally with the connecting portion 61 so as to bridge the outer edge portion of the fitting hole 62 on the other surface 612 side of the connecting portion 61, that is, across the fitting hole 62. Yes. Here, the bridging portion 63 is located in the claw gap S 1 between the first extending portion 81 and the second extending portion 82 of the claw portion 80.

The configurations of the arm portion 64, the attachment portion 65, and the connecting portion 66 of the seventh embodiment are the same as those of the fourth embodiment. In the seventh embodiment, the first direction, which is the direction in which the claw portion 80 extends, and the third direction, which is the direction from the connection portion 61 toward the attachment portion 65, are strictly parallel, although they are strictly twisted. . Further, the first direction and the vertical direction are orthogonal to each other.

In the present embodiment, even if the pump module 30 vibrates greatly and a large force in the radial direction of the lid 36 acts on the pump module 30, the claw part 80 is connected to the connection part 61 by the bridging part 63 located in the claw part gap S 1. Can be prevented from coming out of the fitting hole 62. Further, since the arm portion 64 has the bent portion 67, for example, even if excessive vibration occurs in the pump module 30, the connection portion 61 of the support member 60 can sufficiently follow the movement of the pump module 30, and the connection portion The connection state between 61 and the pump module 30, that is, the fitting state between the claw portion 80 and the fitting hole portion 62 can be prevented from being released. Therefore, it is possible to suppress the support member 60 from being detached from the pump module 30 and to maintain the effect of suppressing the vibration of the pump module 30 in the long term.

(Eighth embodiment)
A part of the fuel supply apparatus according to the eighth embodiment is shown in FIG. The eighth embodiment differs from the fourth embodiment in the configuration of the pump module 30 and the like.

In the eighth embodiment, the pump module 30 has a pump case 90 instead of the fuel filter 32. That is, in this embodiment, the fuel filter 32 (refer FIG. 1) which can remove the foreign material in the fuel discharged from the fuel pump 40 is not provided.

The pump case 90 has a cylindrical case body 91 and a lid 92. The case main body 91 is provided so as to cover the outer periphery of the fuel pump 40. The case main body 91 is formed with a plurality of case hole portions 910 that connect the inner peripheral wall and the outer peripheral wall.

The lid 92 is provided so as to close the end of the case body 91 opposite to the suction filter 50. The claw portion 80 is formed on a lid upper surface 921 that is a surface on the upper side in the vertical direction of the lid 92. Since the structure of the support member 60 is substantially the same as that of the fourth embodiment, the description thereof is omitted. Also in the present embodiment that does not include the fuel filter 32, the effect of suppressing the vibration of the pump module 30 can be maintained for a long time, as in the fourth embodiment.

(Other embodiments)
In another embodiment of the present disclosure, the end portion on the other side in the first direction of the tapered portion 632 is first from the portion around the fitting hole portion 62 on the other side surface in the first direction of the connecting portion 61. It may be located on one side of the direction. In another embodiment of the present disclosure, the bridging portion 63 may not have the tapered portion 632.

In another embodiment of the present disclosure, the width in the second direction, which is a direction perpendicular to the first direction, in at least a part of the bridging portion 63 in the first direction is greater than the width in the second direction of the claw gap S1. It can be large.

In the above-described embodiment, the example in which the bent portion 67 is formed to be bent three times in the third direction has been described. On the other hand, in other embodiments of the present disclosure, the bent portion 67 may be bent any number of times as long as it is bent at least once in the third direction.

In the above-described embodiment, the example in which the

defect portions

691 and 692 are formed in the first bent portion 671, the second bent portion 672, and the third bent portion 673 of the bent portion 67 is shown. On the other hand, in other embodiments of the present disclosure, the missing

portions

691 and 692 may be formed in any portion of the bent portion 67. Moreover, the defect |

deletion parts

691 and 692 may be formed in what kind of shape.

Further, in the above-described embodiment, an example is shown in which two sets of portions each including the connection portion 61, the arm portion 64, and the attachment portion 65 are provided in one support member 60. On the other hand, in another embodiment of the present disclosure, only one set of portions including the connection portion 61, the arm portion 64, and the attachment portion 65 may be provided in one support member 60. In this case, the connecting portion 66 can be omitted. Further, in one support member 60, three or more sets of the connection portion 61, the arm portion 64, and the attachment portion 65 may be provided.

In other embodiments of the present disclosure, the claw portion 80 may be formed on the radially outer side of the lid 36. In another embodiment of the present disclosure, the other member to which the support member 60 is attached is not limited to the sub tank 20 as long as it is a member provided in the fuel tank 1 and may be any member.
Thus, the present disclosure is not limited to the above-described embodiment, and can be implemented in various forms without departing from the gist thereof.

This disclosure has been described based on embodiments. However, the present disclosure is not limited to the embodiments and structures. The present disclosure also includes various modifications and modifications within the equivalent scope. Also, various combinations and forms, as well as other combinations and forms including only one element, more or less, are within the scope and spirit of the present disclosure.

Claims

A pump module (30) having a fuel pump (40) housed in the fuel tank (1) and sucking and discharging the fuel in the fuel tank;
A suction filter (50) provided on the lower side in the vertical direction of the fuel pump so as to be connected to the suction port (41) of the fuel pump and capable of removing foreign matters in the fuel sucked by the fuel pump;
A support member (60) for connecting the other member (20) provided in the fuel tank and the pump module to support the pump module,
The pump module includes a first extending portion (81) extending in the first direction and a second extending in the first direction while forming a claw portion gap (S1) as a gap between the first extending portion and the first extending portion. Having a claw part (80) including an extension part (82);
The support member includes a connection portion (61) connectable to the pump module, a fitting hole portion (62) formed so as to penetrate the connection portion in the first direction and into which the claw portion is fitted, and A fuel supply device (10) having a bridging portion (63) formed so that at least a part thereof is positioned in the claw gap.
The bridging portion is tapered at one end in the first direction so that the width decreases from the other side in the first direction toward the one side, and at least a part of the bridging portion is in the claw gap. The fuel supply device according to claim 1, further comprising a tapered portion (632).
The other end of the taper portion in the first direction is the other end in the first direction of the surface of the connection portion on the other side in the first direction (612) around the fitting hole. The fuel supply device according to claim 2, which is located on a side.
The width in the second direction, which is a direction perpendicular to the first direction, in at least a part of the bridging portion in the first direction is equal to or greater than the width in the second direction of the claw gap. The fuel supply apparatus according to any one of the above.
The support member includes an attachment portion (65) attached to the other member, and a plate-like arm portion (unit) formed integrally with the attachment portion and the connection portion so as to connect the attachment portion and the connection portion. 64)
The arm portion has a bent portion (67) formed so as to be bent at least once in a third direction which is a direction from the connection portion toward the attachment portion. The fuel supply device according to item.
A pump module (30) having a fuel pump (40) housed in the fuel tank (1) and sucking and discharging the fuel in the fuel tank;
A suction filter (50) provided on the lower side in the vertical direction of the fuel pump so as to be connected to the suction port (41) of the fuel pump and capable of removing foreign matters in the fuel sucked by the fuel pump;
A support member (60) for connecting the other member (20) provided in the fuel tank and the pump module to support the pump module,
The support member includes an attachment portion (65) attached to the other member, a connection portion (61) connectable to the pump module, and the attachment portion and the connection so as to connect the attachment portion and the connection portion. Plate-like arm part (64) formed integrally with the part,
The fuel supply device (10), wherein the arm portion has a bent portion (67) formed so as to be bent at least once in a third direction which is a direction from the connecting portion toward the attachment portion.
The fuel supply device according to claim 5 or 6, wherein the arm portion has a defect portion (691, 692) formed so as to penetrate a part of the bent portion in the plate thickness direction.