CN103161627B - Petrolift - Google Patents
Petrolift Download PDFInfo
- Publication number
- CN103161627B CN103161627B CN201210447852.6A CN201210447852A CN103161627B CN 103161627 B CN103161627 B CN 103161627B CN 201210447852 A CN201210447852 A CN 201210447852A CN 103161627 B CN103161627 B CN 103161627B
- Authority
- CN
- China
- Prior art keywords
- terminal
- groove
- petrolift
- plane
- width
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Fuel Cell (AREA)
Abstract
The invention provides a kind of petrolift.This petrolift suppresses the electro erosion of its terminal.Petrolift comprises: housing (32); 1st terminal (62) and the 2nd terminal (64), it is located in the 1st plane of housing (32), for being connected with external power supply; Motor, it is connected to the 1st terminal (62) and the 2nd terminal (64), rotates by the electric power come via the 1st terminal and the 2nd terminal feeding from external power supply.1st terminal (62) and the 2nd terminal (64) are given prominence to from the 1st plane with the state at spaced interval, the part being positioned between the 1st terminal (62) and the 2nd terminal (64) of the 1st plane is provided with drop and forms peventing member (70), this drop forms peventing member (70) and forms for preventing the drop contacted with the 1st terminal and the 2nd both terminals.
Description
Technical field
The present invention relates to a kind of petrolift.
Background technique
Being configured in the petrolift in fuel tank, cause terminal electro erosion by the fuel of water contained in fuel, deterioration sometimes.Patent Document 1 discloses a kind of technology for solving this problem.In the technology of patent documentation 1, liquid outlet can be formed with in the connector portion of petrolift that inserts of power supply source connector.Decline in the liquid level of fuel tank, when connector portion exposes in atmosphere completely, the fuel entering into connector portion is discharged from liquid outlet.Thereby, it is possible to prevent terminal electro erosion.
Patent documentation 1: Japanese Unexamined Patent Publication 7-91343 publication
In the technology of patent documentation 1, although the fuel in the connector portion entering into petrolift can be discharged to a certain extent from liquid outlet, the fuel in the connector portion entering into petrolift cannot be discharged completely.That is, cause a small amount of fuel leaves in the connector portion of petrolift due to the surface tension of fuel.When the terminal periphery of fuel leaves at petrolift, likely cause terminal electro erosion by this residual fuel.
Summary of the invention
The object of the invention is to openly a kind of petrolift that can suppress the terminal electro erosion of petrolift further.
Petrolift disclosed in this invention is configured in fuel tank, and wherein, this petrolift comprises: housing; 1st terminal, it is located at the 1st plane of housing, is connected for connecting up with the be connected to external power supply the 1st; 2nd terminal, it is located at the 1st plane of housing, is connected for connecting up with the be connected to external power supply the 2nd; Motor, it is connected to the 1st terminal and the 2nd terminal, rotates by the electric power come via the 1st terminal and the 2nd terminal feeding from external power supply.1st terminal and the 2nd terminal are given prominence to from the 1st plane with the state at spaced interval.And, the 1st plane, part between the 1st terminal and the 2nd terminal be provided with drop form peventing member, this drop forms peventing member and forms for preventing the drop contacted with the 1st terminal and the 2nd both terminals.
In this petrolift, the 1st plane being provided with the 1st terminal and the 2nd terminal is highlightedly provided with drop and forms peventing member.Therefore, it is possible to prevent from forming the drop contacted with the 1st terminal and the 2nd both terminals, thus can prevent electric current from flowing between the 1st terminal and the 2nd terminal via the drop of fuel.As a result, the 1st terminal and the 2nd terminal electro erosion can be prevented.
Above-mentioned drop forms peventing member such as can be formed as following parts: by the 1st plane, fuel in part between the 1st terminal and the 2nd terminal is separated into the drop being formed in the 1st terminals side and the drop being formed in the 2nd terminals side.Adopt such structure, though fuel leaves the 1st plane, in part between the 1st terminal and the 2nd terminal, this fuel also can be separated into the drop of the 1st terminals side and the drop of the 2nd terminals side.Therefore, it is possible to prevent electric current from flowing between the 1st terminal and the 2nd terminal, thus the 1st terminal and the 2nd terminal electro erosion can be prevented.
In a mode of execution of above-mentioned petrolift, it is the groove being formed at the 1st plane that drop forms peventing member, and one end of groove arrives the periphery of the 1st plane and opens.Adopt such structure, the fuel in the part between the 1st terminal and the 2nd terminal of the 1st plane can flow and be discharged to the outside from the periphery of the 1st plane in groove.
In these cases, the end of preferred groove, tilts towards above-mentioned one end.Adopt such structure, the fuel in groove can be made to be easy to flow towards above-mentioned one end.
Preferably on the direction orthogonal with the length direction of above-mentioned groove, short at the width of the 1st part between terminal and groove than in the 1st plane of the width of above-mentioned groove, and short at the width of the 2nd part between terminal and groove than in the 1st plane.Adopt such structure, can prevent the drop of the 1st terminals side from crossing recess with the drop of the 2nd terminals side and being connected.
And the width on the direction orthogonal with its length direction of preferred above-mentioned groove is larger than the degree of depth of groove.Adopt such structure, can prevent the drop of the 1st terminals side from crossing recess with the drop of the 2nd terminals side further and be connected.
In addition, in another mode of execution of above-mentioned petrolift, also can be provided with connector, by being inserted into by this connector in the 1st terminal and the 2nd terminal on the end of the 1st wiring and the 2nd end of connecting up, 1st terminal and the 1st is connected up be connected, and the 2nd terminal and the 2nd is connected up be connected.In this case, also this petrolift can be made also to comprise stop member, and when connector is inserted in the 1st terminal and the 2nd terminal, the bottom surface of this stop member and connector abuts against, be connected to stop member by the bottom surface of connector, between the bottom surface of connector and the 1st plane, be formed with gap.Adopt such structure, between the bottom surface of connector and the 1st plane, be formed with suitable gap, can suppress fuel leaves between the bottom surface of connector and the 1st plane.
Accompanying drawing explanation
Fig. 1 is the longitudinal section of the petrolift of the 1st embodiment.
Fig. 2 is the plan view of top cover.
Fig. 3 represents the connector portion be formed on top cover and the figure being inserted into the wiring connectors in this connector portion.
Fig. 4 is the IV-IV sectional view of Fig. 2.
Fig. 5 is a partial enlarged drawing part of Fig. 4 represented enlargedly.
Fig. 6 is the VI-VI sectional view of Fig. 2.
Fig. 7 represents the figure being inserted with the state of connector in the connector portion of top cover.
Fig. 8 is the plan view of the top cover of embodiment 2.
Fig. 9 is the figure in the connector portion represented on the top cover being formed in embodiment 2.
Figure 10 is the X-X sectional view of Fig. 8.
Figure 11 is a partial enlarged drawing part of Figure 10 represented enlargedly.
Figure 12 is the XII-XII sectional view of Fig. 8.
Figure 13 is the plan view of the top cover of embodiment 3.
Figure 14 is the XIV-XIV sectional view of Figure 13.
Figure 15 is a figure part of Figure 14 represented enlargedly.
Figure 16 is the figure of the variation that embodiment 1 is described.
Figure 17 is the figure of another variation that embodiment 1 is described.
Figure 18 is the XVIII-XVIII sectional view of Figure 17.
Figure 19 represents in another variation of embodiment 1, in the connector portion of top cover, is inserted with the figure of the state of connector.
Figure 20 represents the figure measuring the experimental result that leakage current obtains.
Embodiment
embodiment 1
Use accompanying drawing that the petrolift of embodiment 1 is described.The petrolift of the present embodiment is the petrolift of automobile, and it is configured in fuel tank, for the motor supply fuel to automobile.As shown in Figure 1, petrolift 10 comprises motor part 12 and pumping section 14, and motor part 12 and pumping section 14 are housed in housing 16.Motor part 12 has rotor 18.Rotor 18 comprises axle 20, the laminated iron core 22 be fixed on axle 20, the commutator 24 that is wound on the not shown coil on laminated iron core 22 and is connected with this overhang.Axle 20 can be bearing on this housing 16 relative to housing 16 rotatably by bearing 26,28.Permanent magnet 30 is fixed with in the mode of surrounding rotor 18 in the inner side of housing 16.The top cover 32 on top being installed on housing 16 is provided with the connector portion 60 (terminal 62,64) described in detail below, supplies electric power via connector portion 60 to motor part 12.When via brush 34 with commutator 24 to coil electricity time, rotor 18 and axle 20 rotate.
Pumping section 14 is contained in the bottom of housing 16.Pumping section 14 comprises roughly discoideus impeller 36.The upper surface of impeller 36 is provided with sets of recesses 36a along outer periphery.The lower surface of impeller 36 is provided with sets of recesses 36b along outer periphery.Be provided with at the center of impeller 36 and make this impeller 36 cannot be sticked in the through hole of this axle 20 with the relative rotation with axle 20, when axle 20 rotates, impeller 36 also rotates.
Pump case for accommodating impeller 36 is formed with suction side shell 40 by spraying side shell 38.Groove 38a is formed in the region relative with the outer periphery of impeller 36 of ejection side shell 38.Groove 38a is formed as the roughly C font extending to downstream along the sense of rotation of impeller 36 from upstream extremity.Ejection side shell 38 is formed the ejiction opening 50 of the upper surface arriving ejection side shell 38 from the downstream of groove 38a.Ejiction opening 50 makes the inside of pump case be communicated with outside (inner space of motor part 12).
Groove 40a is formed in the region relative with the outer periphery of impeller 36 of suction side shell 40.Groove 40a is also formed as the roughly C font extending to downstream along the sense of rotation of impeller 36 from upstream extremity in the same manner as groove 38a.Suction side shell 40 is formed the suction port 42 of the upstream extremity of the lower surface arrival slot 40a from suction side shell 40.Suction port 42 makes the inside of pump case be communicated with outside (outside of petrolift).And, suction side shell 40 is formed steam outlet 41.Steam outlet 41 is for being discharged to the steam produced in groove 40a outside pump.Utilize sets of recesses 36a, 36b, groove 38a, 40a, be formed with pump stream 44 in the mode of the outer periphery covering impeller 36.
When impeller 36 is when spraying rotation in side pump case 38, suction side pump case 40, fuel to be attracted to from suction port 42 in pumping section 14 and to be directed in pump stream 44.Fuel in the process of flowing in pump stream 44 after boosting is sent to motor part 12 side from ejiction opening 50.Be sent to fuel in motor part 12 by motor part 12, the blowing unit 48 of self-forming on top cover 32 is sent to outside.
Then, with reference to Fig. 2 ~ Fig. 7, the connector portion 60 be formed on top cover 32 is described.As shown in Figure 2 to 7, connector portion 60 has projecting prominent wall 66 on the upper surface of top cover 32.Connector 80 is inserted with in the space formed by prominent wall 66 and top cover 32 (that is, upper end be opened space).As shown in Figure 3, prominent wall 66 is formed with slit pore 76.The connector shell 86 of connector 80 is formed with protuberance 84.When connector 80 is inserted in connector portion 60, the protuberance 84 of connector shell 86 engages with the slit pore 76 of prominent wall 66.Thereby, it is possible to prevent connector 80 from coming off from connector portion 60.
The bottom surface 68 (upper surface of top cover 32) in connector portion 60 is configured with terminal 62,64.Terminal 62,64 is given prominence to (with reference to Fig. 4, Fig. 6 etc.) upward from the bottom surface 68 in connector portion 60.Terminal 62,64 spaced compartment of terrain configuration.The surrounding of terminal 62,64 is surrounded by prominent wall 66, and the upper end of terminal 62,64 is lower than the upper limb of prominent wall 66.Thereby, it is possible to utilize prominent wall 66 to protect terminal 62,64.In addition, on the bottom surface 68 in connector portion 60, around terminal 62, be formed with recess 78b, around terminal 64, be formed with recess 78a.Recess 78b, 78a are arranged to prevent the burr when by insert molding terminal 62,64 and top cover 32 being configured as one from climbing on terminal 62,64.
As shown in Fig. 3, Fig. 7, when connector 80 is inserted in connector portion 60, wiring 82b, 82a are connected with terminal 62,64.Thus, terminal 62,64 is connected with not shown external power supply via wiring 82b, 82a.That is, a terminal in terminal 62,64 is connected with the positive pole (+pole) of external power supply, and another terminal in terminal 62,64 is connected with the negative pole (-pole) of external power supply.Thus, the electric power from external power supply can be supplied to motor part 12 via terminal 62,64.According to the above description can be clear and definite: top cover 32 is examples of " housing " described in technological scheme, bottom surface 68 (upper surface of top cover 32) is equivalent to an example of " the 1st plane " described in technological scheme, terminal 62,64 is equivalent to an example of " the 1st terminal ", " the 2nd terminal " described in technological scheme, and wiring 82a, wiring 82b are equivalent to an example of " the 1st wiring ", " the 2nd wiring " described in technological scheme.
As shown in Figure 2, the bottom surface 68 in connector portion 60 is formed with groove 70,72a, 72b, 74a, 74b.Groove 74a, 74b extend along y direction (that is, from terminal 64 towards the direction of terminal 62).Groove 74a extends along the inner peripheral surface of prominent wall 66.Groove 74b is arranged between groove 74a and terminal 62,64.The two ends of groove 74b arrive prominent wall 66.Groove 72a, 72b extend along the inner peripheral surface of the prominent wall 66 extended in the x direction.One end of groove 72a, 72b is connected to one end of groove 74a, 74b.Groove 70 is arranged on the central authorities of terminal 62,64, and it extends along x direction.One end of groove 70 is connected to groove 74a, 74b.The other end of groove 70 arrives the periphery of the upper surface of top cover 32 by the slit pore 76 of prominent wall 66 and opens (with reference to Fig. 3, Fig. 6).In addition, groove 70,72a, 72b, 74a, 74b are not connected with recess 78a, 78b of the surrounding being formed in terminal 62,64.
As shown in Figure 4, Figure 5, the width b (size on the direction orthogonal with the length direction of groove) of groove 70,72a, 72b is larger than the degree of depth c of groove 70,72a, 72b.Thereby, it is possible to prevent crossed slot 70, form drop 72a, 72b.In addition, groove 74a, 74b although not shown in Fig. 4, Fig. 5, but the width of groove 74a, 74b and the degree of depth are also identical with the width of groove 70,72a, 72b and the degree of depth.
And the width b of groove 70,72a, 72b, 74a, 74b is less than the width a2 of the planar surface portion 68b between terminal 62 and terminal 64 of bottom surface 68,68c.At this, planar surface portion 68b is positioned at the scope from recess 78a to groove 70, and planar surface portion 68c is positioned at the scope from recess 78b to groove 70.In addition, the width b of groove 70,72a, 72b, 74a, 74b is less than the width a3 of the planar surface portion 68a between prominent wall 66 and terminal 64 of bottom surface 68, and is less than the width a1 of the planar surface portion 68d between prominent wall 66 and terminal 62 of bottom surface 68.Width a1, a2, a3 of planar surface portion 68a, 68b, 68c, 68d are below 2mm.In addition, can be clear and definite according to Fig. 2: the width being less than planar surface portion 68a, 68b, 68c, 68d at the width (length on x direction) of groove 74b and the planar surface portion between recess 78a, 78b of the width (length on x direction) of the planar surface portion between groove 74a and groove 74b of bottom surface 68 and bottom surface 68 is below 2mm.
In above-mentioned petrolift 10, when the liquid level of fuel tank declines, when connector portion 60 exposes in atmosphere completely, the fuel entering into connector portion 60 is discharged from groove 70,72a, 72b, 74a, 74b.At this, owing to being formed with groove 70,72a, 72b, 74a, 74b on the bottom surface 68 in connector portion 60, therefore, the bottom surface 68 in connector portion 60 be divided into area less by groove 70,72a, 72b, 74a, 74b multiple planar surface portion 68a, 68b, 68c, 68d ...Thus, the drop that the fuel on bottom surface 68 is formed due to surface tension is destroyed, and can prevent the drop forming larger fuel.As a result, the fuel on bottom surface 68 flow in groove 70,72a, 72b, 74a, 74b, is discharged in fuel tank from one end (end of slit pore 76 side) of groove 70.And, near the prominent wall 66 that fuel is easily residual, be formed with groove 72a, 72b, 74.Therefore, the fuel near prominent wall 66 flow in groove 72a, 72b, 74, is discharged to outside connector portion 60 by groove 70.Thus, fuel is discharged from connector portion 60, therefore, it is possible to prevent terminal 62,64 electro erosion.
In addition, between terminal 62,64, be formed with groove 70, the bottom surface 68 between terminal 62,64 is split by it.Thus, even if fuel leaves is between the terminal 62,64 in connector portion 60, also can prevent this fuel from becoming the drop contacted with both terminals 62,64.That is, the fuel between the terminal 62,64 remaining in connector portion 60 is separated into the drop of terminal 62 side and the drop of terminal 64 side by groove 70.Particularly, the planar surface portion 68b between terminal 62,64, the width a2 of 68c are below 2mm, and the width b of groove 70 is less than the width a2 of planar surface portion 68b, 68c, and the width b of groove 70 is greater than the degree of depth c of groove 70.Thereby, it is possible to suitably prevent crossed slot 70 ground from forming drop.Therefore, it is possible to prevent electric current from flowing between terminal 62,64 via the drop of fuel, thus terminal 62,64 electro erosion can be prevented.
At this, the petrolift and petrolift (comparative example) in the past the experimental example measured the electric current flowed between terminal that use embodiment 1 are described.In an experiment, the fuel of the established amount that drips to connector portion under the state being applied with voltage between the terminal to petrolift, measures the electric current flowed between terminal.As shown in figure 20, in the petrolift of embodiment 1, the fuel in connector portion of dripping promptly is discharged from connector portion, and the electric current flowed between terminal reduces at short notice.On the other hand, in the petrolift of comparative example, the fuel in connector portion of dripping is not discharged from connector portion, and electric current flows for a long time between terminal.Can confirm thus: in the petrolift of embodiment 1, fuel is promptly discharged from connector portion, can prevent terminal electro erosion.
embodiment 2
The petrolift of accompanying drawing to embodiment 2 is utilized to be described.The petrolift of embodiment 2 is a petrolifts part for the petrolift of embodiment 1 changed.Thus, be described at this difference to the petrolift of the petrolift of embodiment 2 and embodiment 1.In addition, use same reference numerals for the component identical with the petrolift of embodiment 1, description is omitted.
As shown in Fig. 8 ~ Figure 12, in the petrolift of embodiment 2, the shape being formed in groove 100a, 100b, 102a, the 102b on the bottom surface 68 in connector portion 60 is different from embodiment 1.That is, 5 grooves 102a, 102b bottom surface 68 being formed with groove 100a, the 100b extended along x direction and extending along y direction.Groove 100a, 100b extend along prominent wall 90.Groove 100a, 100b are respectively by fuel discharge outlet 94a, 94b of being formed on prominent wall 90, and its one end arrives the periphery of the upper surface of top cover and opens (with reference to Fig. 9, Figure 12).
Article 5, groove 102a, 102b separate the compartment of terrain configuration of approximate equality in the x direction.One end of each groove 102a is connected to groove 100a, extends to y direction (being the negative direction of y-axis in detail) from groove 100a.Article 5, a groove 102a in groove 102a, configuration one end (end of minus side) in the x direction extends along prominent wall 90.Article 5, the base end part of three groove 102a in groove 102a, the configuration the other end (end of positive side) in the x direction is formed between groove 100a and recess 78b, and its tip portion is formed between recess 78b and recess 78a.Base end part and the tip portion of above-mentioned groove 102a couple together by recess 78b.On the other hand, one end of groove 102b is connected to groove 100b, extends to y direction (being the postive direction of y-axis in detail) from groove 100b.Article 5, a groove 102b in groove 102b, configuration one end in the x direction extends along prominent wall 90.Article 5, the base end part of 3 groove 102b in groove 102b, the configuration the other end in the x direction is formed between groove 100b and recess 78a, and its tip portion is formed between recess 78a and recess 78b.Base end part and the tip portion of above-mentioned groove 102b couple together by recess 78a.
In addition, as shown in figure 11, the width a4 (interval on y direction) of the planar surface portion 168 between groove 102a and groove 102b is below 2mm, and is greater than the width b of groove 100a, 100b, 102a, 102b.In addition, similarly to Example 1, (namely each groove 100a, 100b, 102a, 102b have identical size, width b and degree of depth c), the width b (size on the direction orthogonal with the length direction of groove) of groove 100a, 100b, 102a, 102b is larger than the degree of depth c of groove 70,72a, 72b.
In addition, prominent wall 90 is formed with the card complex hole 92 (with reference to Fig. 9) that opening area is less compared with the slit pore 76 of embodiment 1.When connector 80 is inserted in connector portion 60, the protuberance 84 of connector shell 86 fastens with the card complex hole 92 of prominent wall 90.Thereby, it is possible to prevent connector 80 from coming off from connector portion 60.
In the petrolift of embodiment 2, when the liquid level of fuel tank decline, connector portion 60 expose in atmosphere completely time, the fuel entering into connector portion 60 is also discharged from groove 100a, 100b, 102a, 102b.Because the bottom surface 68 in connector portion 60 is split by groove 100a, 100b, 102a, 102b, therefore, it is possible to prevent the drop forming larger fuel on bottom surface 68.As a result, the fuel on bottom surface 68, by groove 100a, 100b, 102a, 102b, is suitably discharged in fuel tank from one end (end of fuel discharge outlet 94a, 94b side) of groove 100a, 100b.And, owing to being formed with groove 100a, 100b, 102a, 102b along prominent wall 90, therefore, it is possible to prevent fuel leaves near prominent wall 90.Thus, fuel is suitably discharged from connector portion 60, can prevent terminal 62,64 electro erosion.
And, between terminal 62,64, be formed with a part of groove 102a, 102b.In detail, between the recess 78b be formed in around the terminal 62 and recess 78a be formed in around terminal 64, be formed with a part of groove 102a, 102b.As a result, even if fuel leaves is between terminal 62,64, also can prevent this fuel from becoming the drop contacted with both terminals 62,64.Therefore, it is possible to prevent electric current from flowing between terminal 62,64 via the drop of fuel, thus suitably can prevent terminal 62,64 electro erosion.
embodiment 3
The petrolift of accompanying drawing to embodiment 3 is utilized to be described.The petrolift of embodiment 3 is changed a part for the petrolift of embodiment 2.Thus, be described at this difference to the petrolift of the petrolift of embodiment 3 and embodiment 2.In addition, use same reference numerals for the component identical with the petrolift of embodiment 2, description is omitted.
As shown in FIG. 13 to 16, in the petrolift of embodiment 3, be formed in groove 110a, 110b on the bottom surface 68 in connector portion 60,112,114a, 114b, 116 shape different from embodiment 2.That is, bottom surface 68 is formed extend along prominent wall 90 groove 110a, 110b, 112, be formed in the bight of prominent wall 90 groove 114a, 114b, be formed in two grooves 116 between terminal 62,64.One end of groove 110a, 110b is respectively by the fuel discharge outlet be formed on prominent wall 90 (omitting diagram), and this one end arrives the periphery of the upper surface of top cover and opens.
The other end of the other end of groove 110a and groove 110b couples together by groove 112.Be formed with groove 114a near joint between groove 112 and groove 110a, groove 112 and groove 110a couple together by groove 114a further.And be formed with groove 114b near the joint between groove 112 and groove 110b, groove 112 and groove 110b couple together by groove 114b further.
As shown in figure 13, two grooves 116 are formed in the mode of intersecting near the central authorities of terminal 62,64.As shown in Figure 14, Figure 15, the width a5 of the planar surface portion 178a between recess 78a and groove 116 (and the width of planar surface portion 178b between recess 78b and groove 116) is below 2mm, and be greater than groove 110a, 110b, 112,114a, 114b, 116 width b.In addition, in XIV-XIV cross section in fig. 13, two grooves 116 intersect.Therefore, the width d on the y direction of groove 116 is greater than the width b of groove 116, but is less than the width a5 of planar surface portion 178a, 178b.
In the petrolift of embodiment 3, also same with embodiment 1, embodiment 2, the bottom surface 68 in connector portion 60 by groove 110a, 110b, 112,114a, 114b, 116 segmentations.Therefore, the fuel on bottom surface 68 by groove 110a, 110b, 112,114a, 114b, 116 be suitably discharged in fuel tank.And, be formed with groove 110a, 110b, 112 along prominent wall 90, and be formed with groove 114a, 114b in the bight of prominent wall 90.Therefore, it is possible to prevent fuel leaves near prominent wall 90.Thus, fuel is suitably discharged from connector portion 60, can prevent terminal 62,64 electro erosion.
In addition, between terminal 62,64, be formed with groove 116, the drop forming the fuel contacted with both terminals 62,64 can be prevented.Therefore, it is possible to prevent electric current from flowing between terminal 62,64 via the drop of fuel, thus suitably can prevent terminal 62,64 electro erosion.
Below understand concrete example of the present invention in detail, but above concrete example just illustrates, and be not used in restriction protection domain.The technology of concrete example illustrated above being carried out various distortion, changing is comprised in the technology described in technological scheme.
Such as, the groove be formed on the bottom surface 68 in connector portion 60 also can be made to tilt towards its exhaust end.Such as, as shown in figure 16, also can be formed as groove 120 is tilted towards exhaust end.Adopt such structure, the fuel flow in groove 120 suitably can be discharged in fuel tank.In addition, groove is enable to be applied to above-mentioned each embodiment towards the structure that exhaust end tilts.
Further, also can be formed as: when connector 80 is inserted in connector portion 60, between the bottom surface 68 and connector 80 (connector shell 86) in connector portion 60, be formed with gap.Such as, as shown in Figure 17 ~ Figure 19, four bights of on the bottom surface 68 of prominent wall 66, prominent wall 66 are formed with stop member 122a, 122b, 122c, 122d.In the structure shown here, when connector 80 is inserted in connector portion 60, connector shell 86 and stop member 122a, 122b, 122c, 122d abut against, between the bottom surface 68 and connector 86 in connector portion 60, be formed with gap.Therefore, it is possible to suppress fuel leaves further between connector portion 60 and connector 86.In addition, the gap be formed between the bottom surface 68 in connector portion 60 and connector 86 is preferably more than 0.3mm.By making gap be more than 0.3mm, can suitably suppress fuel leaves between.In addition, the structure bottom surface in connector portion being formed with stop member can be applied to the various embodiments described above.
In addition, in the various embodiments described above, around terminal 62, be formed with recess 78b, around terminal 64, be formed with recess 78a, but be not limited to such mode.Such as, when terminal 62,64 and top cover 32 not being shaped integratedly by insert molding, terminal 62,64 is pressed in top cover 32 when keeping terminal 62,64, need not around terminal 62,64 formation recess.
This specification or the technology essential factor illustrated by accompanying drawing are used for separately or play technical practicability by various combination, combination when being not limited to apply for described in technological scheme.And this specification or the technology illustrated in accompanying drawing are used for reaching multiple object simultaneously, the practicability on the technology itself reaching one of them object possesses skills.
description of reference numerals
12, motor part; 14, pumping section; 16, housing; 18, rotor; 20, axle; 22, laminated iron core; 24, commutator; 26,28, bearing; 30, permanent magnet; 32, top cover; 34, brush; 36, impeller; 36a, 36b, recess; 38, side shell is sprayed; 38a, groove; 40, suction side shell; 40a, groove; 42, suction port; 44, pump stream; 48, blowing unit; 50, ejiction opening; 60, connector portion; 62,64, terminal; 66, prominent wall; 68, bottom surface; 70,72a, 72,74a, 74b, groove; 76, slit pore; 78a, 78b, recess; 80, connector; 82a, 82b, wiring; 86, connector shell.
Claims (10)
1. a petrolift, it is configured in fuel tank, wherein,
This petrolift comprises:
Housing;
1st terminal, it is located at the 1st plane of housing, is connected for connecting up with the be connected to external power supply the 1st;
2nd terminal, it is located at the 1st plane of housing, is connected for connecting up with the be connected to external power supply the 2nd;
Motor, it is connected to the 1st terminal and the 2nd terminal, rotates by the electric power come via the 1st terminal and the 2nd terminal feeding from external power supply,
1st terminal and the 2nd terminal are given prominence to from the 1st plane with the state at spaced interval,
The part between the 1st terminal and the 2nd terminal of the 1st plane is provided with drop and forms peventing member, this drop forms the drop that peventing member destruction produces due to surface tension, prevents from forming the drop contacted with the 1st terminal and the 2nd both terminals,
It is the groove being formed at the 1st plane that drop forms peventing member, and one end of groove arrives the periphery of the 1st plane and opens.
2. petrolift according to claim 1, wherein,
Drop formed peventing member be used for by the 1st plane, fuel in part between the 1st terminal and the 2nd terminal is separated into the drop being formed in the 1st terminals side and the drop being formed in the 2nd terminals side.
3. petrolift according to claim 1, wherein,
The end of groove, tilts towards above-mentioned one end.
4. petrolift according to claim 3, wherein,
On the direction orthogonal with the length direction of groove, short at the width of the 1st part between terminal and groove than the 1st plane of the width of groove, and short at the width of the 2nd part between terminal and groove than the 1st plane.
5. petrolift according to claim 4, wherein,
Width on the direction orthogonal with its length direction of groove is larger than the degree of depth of groove.
6. petrolift according to claim 3, wherein,
Width on the direction orthogonal with its length direction of groove is larger than the degree of depth of groove.
7. petrolift according to claim 1, wherein,
On the direction orthogonal with the length direction of groove, short at the width of the 1st part between terminal and groove than the 1st plane of the width of groove, and short at the width of the 2nd part between terminal and groove than the 1st plane.
8. petrolift according to claim 7, wherein,
Width on the direction orthogonal with its length direction of groove is larger than the degree of depth of groove.
9. petrolift according to claim 1, wherein,
Width on the direction orthogonal with its length direction of groove is larger than the degree of depth of groove.
10. the petrolift according to any one of claim 1 ~ 9, wherein,
The end and the 2nd end of connecting up of the 1st wiring are provided with connector, by this connector being inserted in the 1st terminal and the 2nd terminal, the 1st terminal and the 1st being connected up and is connected, and the 2nd terminal and the 2nd is connected up be connected,
This petrolift also has stop member, and when connector is inserted in the 1st terminal and the 2nd terminal, the bottom surface of this stop member and connector abuts against,
Be connected to stop member by the bottom surface of connector, between the bottom surface of connector and the 1st plane, be formed with gap.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-274868 | 2011-12-15 | ||
| JP2011274868A JP5753486B2 (en) | 2011-12-15 | 2011-12-15 | Fuel pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103161627A CN103161627A (en) | 2013-06-19 |
| CN103161627B true CN103161627B (en) | 2015-08-19 |
Family
ID=48585069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210447852.6A Expired - Fee Related CN103161627B (en) | 2011-12-15 | 2012-11-09 | Petrolift |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5753486B2 (en) |
| CN (1) | CN103161627B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6549045B2 (en) * | 2016-01-27 | 2019-07-24 | 愛三工業株式会社 | Connector and electric pump with connector |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3168677B2 (en) * | 1992-03-31 | 2001-05-21 | 株式会社デンソー | Fuel pump |
| JP3521449B2 (en) * | 1993-09-27 | 2004-04-19 | 株式会社デンソー | In-tank fuel pump |
| JP2000023332A (en) * | 1998-07-01 | 2000-01-21 | Yazaki Corp | Drain structure of housing block |
| JP2008038649A (en) * | 2006-08-02 | 2008-02-21 | Aisan Ind Co Ltd | Fuel pump |
| JP2008064030A (en) * | 2006-09-07 | 2008-03-21 | Denso Corp | Fuel pump |
| JP4864827B2 (en) * | 2007-07-18 | 2012-02-01 | 愛三工業株式会社 | Fuel supply device |
| JP2009185691A (en) * | 2008-02-06 | 2009-08-20 | Aisan Ind Co Ltd | Pump module |
| JP2012055054A (en) * | 2010-08-31 | 2012-03-15 | Denso Corp | Fuel pump |
-
2011
- 2011-12-15 JP JP2011274868A patent/JP5753486B2/en not_active Expired - Fee Related
-
2012
- 2012-11-09 CN CN201210447852.6A patent/CN103161627B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2013124629A (en) | 2013-06-24 |
| JP5753486B2 (en) | 2015-07-22 |
| CN103161627A (en) | 2013-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7442090B2 (en) | Electrical power delivery system and method of manufacturing same | |
| EP2621050B1 (en) | Inductive Charger for Hand-Held Appliances | |
| CN103457382A (en) | Brushless motor and fuel pump using the same | |
| CN103161627B (en) | Petrolift | |
| US20130119799A1 (en) | Fuel pump | |
| CN107110149B (en) | Peristaltic pump, particularly metering pump | |
| TW201525298A (en) | Housing of fan motor | |
| WO2015040812A1 (en) | Fuel pump | |
| US20120051954A1 (en) | Fuel pump | |
| US9835159B2 (en) | Fuel pump having pulsation dampening branch flow paths | |
| BR112013015733B1 (en) | fuel supply device | |
| US7814889B2 (en) | Electric fuel pump | |
| CN107110150B (en) | Peristaltic pump | |
| CN104863846B (en) | Electrodynamic pump | |
| CN106123187B (en) | A kind of hand-held champignon wet keeping machine | |
| EP1521347A4 (en) | Motor | |
| JP2014013029A (en) | Fluid pump | |
| CN218245672U (en) | Atomizer and electronic atomization device | |
| ES2734522T3 (en) | Electrostatic spray device and method to position it | |
| CN111094748A (en) | Electric pump and motor | |
| CN209216749U (en) | Mutual inductor | |
| CN105762731B (en) | Three core terminal box of encircling type | |
| US20020047366A1 (en) | Device for connecting an electric motor | |
| CN209525381U (en) | The residual current transformer of fool proof assembly | |
| KR102311494B1 (en) | Electric pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20171109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |