CN102536555A

CN102536555A - Fuel supply device

Info

Publication number: CN102536555A
Application number: CN2011102525848A
Authority: CN
Inventors: 光藤英雄; 平岩胜
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2010-12-27
Filing date: 2011-08-29
Publication date: 2012-07-04
Anticipated expiration: 2031-08-29
Also published as: TW201226695A; KR20120074177A; CN102536555B; JP5713665B2; KR101205101B1; JP2012137020A

Abstract

The present invention provides a fuel supply device which has good mounting performance without a plurality of connectors. The fuel supply device is provided with the following components: a control circuit which controls the driving current of a motor part of the fuel pump; a pump connector which is fastened on a mounting bracket and supplies the electric power that is supplied from a vehicle side connector to the control circuit; and a motor terminal which is connected with the motor part of the fuel pump. The fuel supply device is also provided with a printed substrate which is provided with a first connection hole that is connected with a connector terminal of the pump connector and a second connection hole that is connected with the motor terminal. The printed substrate is mounted in a dent part of the mounting bracket. The connector terminal and the motor terminal are integrally molded with the mounting bracket. Furthermore the connector terminal and the motor terminal are inserted in a same direction relative to the first connection hole and the second connection hole of the printed substrate.

Description

Fuel supplying device

Technical field

The present invention relates to a kind of being installed on the fuel tank, utilize the petrolift be arranged in the fuel tank, the fuel supplying device of the for example cart that the fuel in the fuel tank is supplied with outside fuel tank etc.

Background technique

As existing fuel supplying device, known following technology, that is, the drive circuit that will control the action that is arranged on the petrolift in the fuel tank, the cover that is arranged on the opening portion that is used for inaccessible fuel tank is the upper surface of petrolift mounting bracket.(for example, with reference to patent documentation 1.)

Patent documentation 1: TOHKEMY 2006-161599 communique

Summary of the invention

Existing fuel supplying device is shown in patent documentation 1, and the cover that the control circuit of petrolift is arranged on the opening portion that is used for inaccessible fuel tank is the upper surface of petrolift mounting bracket, carries out electric power from electric coupler to the pump connector and supplies with; And; Utilize control circuit that petrolift is controlled, but control circuit be used between the electric coupler that power supply supplies be connected and control circuit and pump side terminal between be connected and utilize connector to connect, have following problem; Promptly; The installation property of control circuit is relatively poor, and owing to utilize a plurality of connectors, so cost is high.

In addition; In fuel tank, be provided with the device except petrolift; The liquid level sensor that for example the level of fuel height in the fuel tank is detected; But for the liquid level height of this liquid level sensor is exported, and must use other connector, the problem that exists cost to increase substantially outside fuel tank.

The present invention proposes in order to solve above-mentioned problem, and its purpose is, a kind of good fuel supplying device of installation property that does not use the control circuit of a plurality of connectors and petrolift is provided.

Fuel supplying device involved in the present invention has: mounting bracket, and it covers the opening portion that forms on the fuel tank, and is formed with recess; Petrolift, it is installed on this mounting bracket, is configured in the said fuel tank, and the fuel in the fuel tank is sprayed outside fuel tank; Control circuit, its driving current to the motor part of said petrolift is controlled; The pump connector, it is fastened on the said mounting bracket, will supply with to said control circuit from the electric power that the vehicle side connector is supplied with; And Terminal of motor, it is connected with the motor part of said petrolift,

This fuel supplying device constitutes,

Has printed base plate; This printed base plate is formed with a plurality of the 1st attachment holes that are connected with the bonder terminal of said pump connector and a plurality of the 2nd attachment holes that are connected with said Terminal of motor at least; Be installed in the recess of said mounting bracket; With the terminal that said the 1st attachment hole and the 2nd attachment hole are connected respectively, the bonder terminal of promptly said pump connector and the Terminal of motor that is connected with said motor part, molded integratedly with said mounting bracket; And said bonder terminal and said Terminal of motor are with respect to the 1st attachment hole and the 2nd attachment hole of said printed base plate, from the chimeric insertion of same direction.

In addition; On said printed base plate, be equipped with said control circuit; This control circuit constitutes, and on the surface of said printed base plate, carries the electronic unit that is used to produce control signal, and the bonder terminal of said pump connector and said the 1st attachment hole utilize soldering electric fastening; And said Terminal of motor and said the 2nd attachment hole utilize soldering electric fastening, and said electronic unit utilizes connecting conductor to be connected with said the 1st attachment hole and the 2nd attachment hole.

The effect of invention

According to fuel supplying device of the present invention; Owing to have a printed base plate that is equipped with control circuit, this control circuit constitutes the terminal that is connected with the attachment hole of this printed base plate by the electronic unit that the driving current of the motor part of petrolift is controlled; Be the bonder terminal and the Terminal of motor that is connected with motor part of pump connector; Molded integratedly with mounting bracket, and bonder terminal and Terminal of motor form, with respect to the attachment hole of printed base plate; Uprightly be provided with from same direction; So can obtain a kind of fuel supplying device, it can make bonder terminal and Terminal of motor is easy and the chimeric reliably attachment hole that is inserted into printed base plate in, the reliability of the connection between bonder terminal, Terminal of motor and the control circuit is high, operation property is good.

For above-mentioned and other the object of the invention, characteristic, effect, according to the record of detailed description in the following mode of execution and accompanying drawing, and further clear and definite.

Description of drawings

Fig. 1 is fuel supplying device and the approximate vertical view of vehicle side connector of expression in the mode of execution 1 of the present invention.

Fig. 2 is the sectional arrangement drawing of the fuel supplying device of Fig. 1.

Fig. 3 is the plan view of the control circuit of Fig. 1.

Fig. 4 is the figure of variation of expression mode of execution 1 of the present invention, is the approximate vertical view that has changed the fuel supplying device behind the allocation position of the attachment hole on the printed base plate.

Fig. 5 is the enlarged view of the control circuit of Fig. 4.

Fig. 6 is fuel supplying device and the approximate vertical view of vehicle side connector of expression in the mode of execution 2 of the present invention.

Fig. 7 is the plan view of the short-circuit part of Fig. 6.

Embodiment

Below, with reference to accompanying drawing, record and narrate mode of execution of the present invention in detail.In addition, in each figure, same numeral is represented identical or considerable part.

Mode of execution 1

Fig. 1 is fuel supplying device and the approximate vertical view of vehicle side connector of expression in the mode of execution 1 of the present invention, and Fig. 2 is the sectional arrangement drawing of the fuel supplying device of Fig. 1, and Fig. 3 is the plan view of the control circuit of Fig. 1.

Utilize Fig. 1～Fig. 3, the structure of the fuel supplying device 100 that mode of execution of the present invention 1 is related is described.

Fuel supplying device 100 is for example in cart, and is as shown in Figure 2, across the liner 3 as airtight member, is lifted on the opening portion 2a of fuel tank 2 of storage of fuels 1, from vehicle side connector 200 (with reference to Fig. 1) supply capability.

Fuel supplying device 100 for example is made up of following part; That is: mounting bracket 10; It disposes spraying pipe 4 and pump connector 5; This spraying pipe 4 is formed by thermoplastic resins such as polyacetal resins, and with 1 ejection of the fuel in the fuel tank 2, this pump connector 5 will be supplied with from the motor part 30 that the electric power that vehicle side connector 200 is supplied with is stated backward; Petrolift 50; It forms by pump portion 20 with as the motor part 30 of so-called brushless motor; This pump portion 20 accommodates impeller 8 and constitutes in pump pedestal 6 and

pump cover body

7,30 pairs of pump portions 20 of this motor part drive, and is made up of stator department 9 and rotor part 11; Ejection filter 12, it filters the fuel from spraying pipe 4 ejections; Filter by suction 13, the fuel 1 that its subtend pump portion 20 flows into filters; And liquid level sensor 14, it utilizes float, detects the liquid level height of the fuel 1 in the fuel tank 2, exports the liquid level height signal of fuel 1 to not shown fuel height display unit via vehicle side connector 200 from pump connector 5.

The form of the pump in this mode of execution 1 is so-called turbine pump, forms discoid impeller 8, to be accommodated from the mode of its positive and negative two face sides clamping by pump pedestal 6 and pump cover body 7; Central part engages with rotor part 11; And this impeller 8 can rotate freely, and in this side relative with impeller 8 of the outer circumferential side of impeller 8 and pump pedestal 6 and pump cover body 7, forms the pump stream of C word shape respectively; Fuel 1 in the fuel tank 2 is filtered by the filter by suction 13 that combines with pump cover body 7; Flow in the pump stream through the rotation of impeller 8, boost simultaneously, and to motor part 30 side pressurized delivered.

From the fuel of pump portion 20,, supply with to not shown motor via ejection filter 12, spraying pipe 4 through the gap between stator department 9 and the rotor part 11 to motor part 30 side pressurized delivered.

Motor part 30 adopts brushless motor; Stator department 9 coiling coil on the stator iron core that is made up of magnet forms; Rotor part 11 cylindraceous is for example in PPS thermoplastic resin materials such as (polyphenylene sulfides), to sneak into the magnetic powder and form plastic magnet cylindraceous; Outer circumferential face side relative with the stator iron core of stator department 9 magnetizes with the mode that is formed on the magnetic pole that replaces each other on the sense of rotation.

In addition; Stator department 9 forms in week and upwards produces rotating magnetic field; Coil to stator department 9 is supplied with three-phase alternating current; This three-phase alternating current is the direct current power of supplying with via pump connector 5 from vehicle side connector 200, utilizes control circuit 15 among the recess 10a that is arranged on mounting bracket 10 to carry out conversion and generates.

In pump connector 5; Bonder terminal 5a～5e and mounting bracket 10 are molded integratedly; The liquid level height signal terminal 21a of the Terminal of motor 19a that is connected with

motor part

30,19b, 19c and

liquid level sensor

14,21b identically, molded integratedly with mounting bracket 10.

Vehicle side connector 200 has the connecting part 16 that combines with pump connector 5, in connecting part 16, disposes the splicing ear 16a～16e with the bonder terminal 5a～5e electrical bond of pump connector 5.

In addition; Here; Splicing ear 16a, 16b are the terminal of supply power; Splicing ear 16c is the terminal of supply based on the electrical signal of the consumption of not shown motor, and splicing

ear

16d, 16e are the terminals of exporting to not shown oil gauge from the liquid level height signal of liquid level sensor 14.

As shown in Figure 3; Control circuit 15 is equipped with electronic unit such as the intergrated circuit 15b that produces control signal, electrolytic condenser 15c, switching element 15d and constitutes on the surface of printed base plate 15a; On printed base plate 15a, be formed with: a plurality of the 1st attachment hole 15e; It makes the chimeric insertion of bonder terminal 5a～5e of pump connector 5, and utilizes soldering electric fastening; And a plurality of the 2nd attachment hole 15f, it makes Terminal of

motor

19a, 19b, 19c and liquid level height signal terminal 21a, the chimeric insertion of 21b, and utilizes soldering electric fastening.

In addition, dispose: connecting conductor 15g, it connects between intergrated circuit 15b, electrolytic condenser 15c and switching element 15d; And as the printed wiring that transmits conductor 15h; It connects short circuit between the 1st attachment hole 15e and the 2nd attachment hole 15f, with not comprising signal that the driving current of motor part 30 is controlled at interior signal, promptly; The liquid level height signal of liquid level sensor 14 for example; Transmit to vehicle side connector 200 from fuel supplying device 100, control circuit 15 is through specified action, the driving current of output motor portion 30.

Like this; Can be with detected liquid level height signal in fuel tank 2; Splicing

ear

16d, 16e via liquid level

height signal terminal

21a, 21b, bonder terminal 5d, 5e, vehicle side connector 200 easily see off to the fuel height display unit of vehicle, and needn't use other lead-in wire.

In addition; Bonder terminal 5a～5e is as shown in Figure 2; Form roughly L word shape, Terminal of

motor

19a, 19b, 19c and liquid level

height signal terminal

21a, 21b, be configured in two ends of printed base plate 15a respectively with bonder terminal 5a～5e, with respect to the 1st attachment hole 15e, the 2nd attachment hole 15f of printed base plate 15a; From upright setting of same direction (with the one side side); Thus, be easy to carry out the chimeric insertion of printed base plate 15a, make and the 1st attachment hole 15e, the 2nd attachment hole 15f between soldering become easy.

In addition, in the fuel supplying device 100 that constitutes as stated, under the state of the recesses that control circuit 15 is contained in mounting bracket 10, for example, fill embedding agents 18 such as silicone, prevent that water, the dust from the outside from invading.

Below, with reference to Fig. 1～Fig. 3, the action of the fuel supplying device 100 of the mode of execution 1 that constitutes as stated is described.

At first, make the pump connector 5 of fuel supplying device 100 chimeric with the connecting part 16 of vehicle side connector 200.

If supply with direct current power via splicing ear 16a, 16b, bonder terminal 5a, 5b to control circuit 15 from vehicle side connector 200; Then control circuit 15 is through known action; Generate three-phase alternating current, supply with three-phase alternating current to the coil of stator department 9 via Terminal of

motor

19a, 19b, 19c.Utilize this three-phase alternating current, stator department 9 upwards produces rotating magnetic field in week, is formed with the rotor part 11 of the magnetic pole that replaces each other along sense of rotation in the outer circumferential face side relative with the stator iron core of stator department 9, follows rotating magnetic field and is rotated.

If the rotation of the impeller 8 of pump portion 20 is then passed through in rotor part 11 rotations, fuel is flowed in the pump stream, boost simultaneously, and to motor part 30 side pressurized delivered.

From the fuel of pump portion 20,, supply with to not shown motor via spraying pipe 4 through the gap between stator department 9 and the rotor part 11 to motor part 30 side pressurized delivered.

In addition, owing to supply with electrical signal to control circuit 15, so the rotating magnetic field that in the coil of stator department 9, produces is directly proportional with electrical signal based on the consumption of motor and rotates based on the consumption of motor from splicing ear 16c.

On the other hand; Liquid level height for the fuel 1 in the fuel tank 2; Utilize liquid level sensor 14,, the height and position of the fuel 1 in the fuel tank 2 is carried out position probing through the float that moves up and down along with buoyancy; With the liquid level height signal of fuel 1 from pump connector 5 through being configured in the transmission conductor 15h on the printed base plate 15a, via vehicle side connector 200 to not shown oil gauge output.

Fig. 4, Fig. 5 are the figure of variation of the control circuit portion of expression mode of execution 1, are the allocation position figure after changing with the 2nd attachment hole 15f of printed base plate 15a.

That is, like Fig. 4, shown in Figure 5, the 2nd attachment hole 15f forms with concentric circles with respect to the profile that forms discoideus mounting bracket 10, and the mode of L word shape disposes to become roughly with the 1st attachment hole 15e.Thus; Make and to become easy with the connection between the molded bonder terminal 5a～5e of the interval of regulation and mounting bracket 10 one and the Terminal of motor 19a that is connected with

motor part

30,19b, 19c and liquid level height signal terminal 21a, the 21b; And, transmit conductor 15h shortening thereby make through being provided with the allocation position between the 1st attachment hole 15e and the 2nd attachment hole 15f nearer.

As stated, 1 fuel supplying device 100 can provide the fuel supplying device that needn't use a plurality of connectors just can tackle with cheap price according to the embodiment of the present invention.

In addition; Have and be equipped with as the electronic unit of the control circuit that the driving current of motor part is controlled and the printed base plate 15a that directly combines with pump connector 5; The terminal that is connected respectively with the 1st attachment hole 15e of this printed base plate 15a and the 2nd attachment hole 15f; Promptly; Liquid level height signal terminal 21a, the 21b of the bonder terminal 5a～5e of pump connector 5, the Terminal of motor 19a～19c that is connected with motor part 30 and liquid level sensor 14, molded integratedly with mounting bracket 10, and bonder terminal 5a～5e and Terminal of motor 19a～19c and liquid level

height signal terminal

21a, 21b form; The 1st attachment hole 15e and the 2nd attachment hole 15f with respect to printed base plate 15a; From upright setting of same direction (with the one side side), therefore, can be with easily and reliably chimeric insertion in the 1st attachment hole 15e of printed base plate 15a, the 2nd attachment hole 15f of bonder terminal 5a～5e, Terminal of motor 19a～19c and liquid level height signal terminal 21a, 21b.Therefore, being connected reliable and being easy to operation between bonder terminal 5a～5e, Terminal of motor 19a～19c and liquid level

height signal terminal

21a, 21b and the control circuit 15.

And; Through forming Fig. 4, the 1st attachment hole 15e shown in Figure 5 and the distribution position between the 2nd attachment hole 15f nearer; Thereby has following effect; That is, make and bonder terminal 5a～5e, Terminal of motor 19a～19c and liquid level

height signal terminal

21a, 21b between chimeric insertion become easier.

And, if the 2nd attachment hole 15f forms with concentric circles with respect to mounting bracket 10, then have following effect, that is, the derivation of the feasible Terminal of motor 19a～19c that is connected with the coil of stator department 9 becomes easy.

In addition, in above-mentioned explanation to motor part 30 for the example of brushless motor is illustrated, but also can be that the brush motor is arranged.

Mode of execution 2

Fig. 6 is the fuel supplying device of expression mode of execution 2 of the present invention and the approximate vertical view of vehicle side connector, and Fig. 7 is the plan view of the short-circuit part of Fig. 6.

In the vehicle of big air displacement, because the capacity of the fuel of fuel supplying device ejection is big,, therefore, be difficult on the mounting bracket upper surface, be provided with so electrical current is big and control circuit maximizes, must be installed in place, installation position away from mounting bracket.

The fuel supplying device of mode of execution 2 is corresponding with above-mentioned requirements, below, utilize Fig. 6, Fig. 7, the fuel supplying device 101 that the control circuit 150 that utilize to maximize is controlled is described.

In Fig. 6, Fig. 7, intermediate connector portion 300 has: control circuit 150, and its driving current to the motor part of fuel supplying device 101 is controlled; Connecting part 160, it is connected with control circuit 150 via lead-in wire 22, and combines with pump connector 5; And vehicle side connecting part 170, it combines with vehicle side connector 200.

On mounting bracket 10, contain short-circuit part 23, this short-circuit part 23 is formed by printed base plate 23a, and printed base plate 23a is provided with: the 1st attachment hole 23b, and it makes the chimeric insertion of bonder terminal 5a～5e of pump connector 5, and utilizes soldering electric fastening; The 2nd attachment hole 23c, it makes Terminal of motor 19a～19c and liquid level height signal terminal 21a, the chimeric insertion of 21b, and utilizes soldering electric fastening; And as the transmission conductor 23d of printed wiring; It connects short circuit between the 1st attachment hole 23b and the 2nd attachment hole 23c; The driving current that to supply with to motor part 30 and from the liquid level height signal of liquid level sensor 14 transmits to vehicle side connector 200 from fuel supplying device 101.

In addition, owing to the difference along with vehicle makes the mounting point of intermediate connector portion 300 different, so go between 22 form length can be corresponding and change with the installation position.

In addition, control circuit 150 is roughly the same with the structure of above-mentioned mode of execution 1, but in order to tackle big electric current, and not shown heat-dissipating part such as radiator is installed on switching element, thereby maximizes.

Except above-mentioned, identical with the fuel supplying device 100 of mode of execution 1.

Below, with reference to Fig. 6, Fig. 7, the action of the fuel supplying device 101 of the mode of execution 2 that constitutes as stated is described.

At first, make the vehicle side connecting part 170 of connecting part 160, intermediate connector portion 300 of the pump connector 5 of fuel supplying device 101 and intermediate connector portion 300 chimeric with the connecting part 16 of vehicle side connector 200.

If through splicing ear 16a, 16b, bonder terminal 5a, 5b, supply with direct current power to control circuit 150 from vehicle side connector 200, then control circuit 150 generates three-phase alternating current according to known action.

Three-phase alternating current is via lead-in wire 22, connecting part 160, pump connector 5, the transmission conductor 23d of short-circuit part 23, Terminal of

motor

19a, 19b, 19c; Coil to stator department 9 is supplied with; Week at stator department 9 upwards produces rotating magnetic field; Be formed with the rotor part 11 of the magnetic pole that replaces each other along sense of rotation in the outer circumferential face side relative, follow rotating magnetic field and be rotated with the stator iron core of stator department 9.

In addition, because from the consumption signal of splicing ear 16c, so the rotating magnetic field that in the coil of stator department 9, produces is directly proportional with the consumption signal and rotates to control circuit 150 supply engines.

On the other hand; Liquid level height for the fuel 1 in the fuel tank 2; Utilize liquid level sensor 14,, the height and position of the fuel 1 in the fuel tank 2 is carried out position probing through the float that moves up and down along with buoyancy; With the liquid level height signal of fuel 1 from pump connector 5 through being configured in the transmission conductor 23d on the printed base plate 23a, via vehicle side connector 200 to not shown oil gauge output.

As stated; 2 fuel supplying device 101 according to the embodiment of the present invention; Except the effect identical with mode of execution 1; Be that connection between bonder terminal, Terminal of motor and the control circuit is reliable and be easy to carry out outside the operation, can obtain a kind ofly not relying on the kind of vehicle and can tackling the fuel supplying device of vehicle from little air displacement to big air displacement.

Claims

1. fuel supplying device, it has:

Mounting bracket, it covers the opening portion that forms on the fuel tank, and is formed with recess; Petrolift, it is installed on this mounting bracket, is configured in the said fuel tank, and the fuel in the fuel tank is sprayed outside fuel tank; Control circuit, its driving current to the motor part of said petrolift is controlled; The pump connector, it is fastened on the said mounting bracket, will supply with to said control circuit from the electric power that the vehicle side connector is supplied with; And Terminal of motor, it is connected with the motor part of said petrolift,

This fuel supplying device is characterised in that,

2. fuel supplying device according to claim 1 is characterized in that,

On said printed base plate, be equipped with said control circuit.

3. fuel supplying device according to claim 2 is characterized in that,

Said control circuit constitutes; On the surface of said printed base plate, carry the electronic unit that is used to produce control signal; The bonder terminal of said pump connector and said the 1st attachment hole utilize soldering electric fastening; And said Terminal of motor and said the 2nd attachment hole utilize soldering electric fastening, and said electronic unit utilizes connecting conductor to be connected with said the 1st attachment hole and the 2nd attachment hole.

4. according to each described fuel supplying device in the claim 1 to 3, it is characterized in that,

The 2nd attachment hole that is connected with the Terminal of motor of said printed base plate forms, and becomes roughly L word shape with the 1st attachment hole that is connected to said bonder terminal.

5. fuel supplying device according to claim 4 is characterized in that,

The 2nd attachment hole that is connected with the Terminal of motor of said printed base plate with respect to the profile that forms discoideus said mounting bracket, forms with concentric circles.

6. according to each described fuel supplying device in the claim 1 to 3, it is characterized in that,

Said printed base plate is provided with: control signal portion, and its driving current to the motor part of said petrolift is controlled; And the transmission conductor, its control signal to the driving current that do not comprise the motor part of controlling this petrolift is transmitted at interior signal.

7. fuel supplying device according to claim 1 is characterized in that,

When on said printed base plate, not carrying said control circuit, utilize the transmission conductor that the 1st attachment hole of said printed base plate is connected with the 2nd attachment hole short circuit, so that the bonder terminal of said pump connector and said at least Terminal of motor short circuit.

8. fuel supplying device according to claim 7 is characterized in that,

Has intermediate connector portion; It carries said control circuit; And; Have via the lead-in wire be connected with this control circuit and connecting part that combines with said pump connector and the vehicle side connecting part that combines with the vehicle side connector, dispose said control circuit in position away from said mounting bracket.

9. according to each described fuel supplying device in claim 1 to 3 and the claim 7,8, it is characterized in that,

In the recess of said mounting bracket, be filled with embedding agent.