CN1684215A

CN1684215A - Cover for electromagnetic switch

Info

Publication number: CN1684215A
Application number: CN 200510064612
Authority: CN
Inventors: 白潟勇治
Original assignee: Honda Lock Manufacturing Co Ltd
Current assignee: Minebea AccessSolutions Inc
Priority date: 2004-04-15
Filing date: 2005-04-15
Publication date: 2005-10-19
Anticipated expiration: 2025-04-15
Also published as: CN100464386C; BRPI0501316B1; BRPI0501316A

Abstract

The invention provides a cover for an electromagnetic switch, on which, a spare fuse holding part not exerting influence on a structure of a switch case nor interfering with other parts can be formed, and no modification of the switch case is needed. A separation wall (15) separating parts (crimp terminals 10), to which, terminal parts of a pair of cables (7a, 7b) are connected, from each other, is integrally molded with the cover (11), and a spare fuse (20) holding part (holding groove 21) is formed on the separation wall.

Description

The lid that is used for electromagnetic switch

Technical field

The present invention relates to a kind of lid that is used for electromagnetic switch, relate more specifically to a kind of lid that is mainly used in the cable segment connector of the electromagnetic switch that covers the vehicle motor start-up circuit.

Background technology

The electromagnetic switch that becomes known for the motor start circuit switch comprises solenoid, under the effect of solenoid and spring pistons reciprocating, engage or contact assembly that separates and the switch case of holding these parts according to the motion of piston.Such electromagnetic switch is typically provided with and is used for the fastening terminal and the fuse mounting portion that is used to hold fuse that leads to the cable end of starter motor and battery; and usually add and be provided with dismountable lid, be used for covering and protection terminal and fuse mounting portion.Knownly in switch main body (referring to Japanese Utility Model open text real open flat 6--43963) and in the lid (referring to Japanese Utility Model open text real open clear 64-55534), maintain spare fuse.

Disclosed in the disclosed known electromagnetic switch of text H6-43963 by Japanese Utility Model, switch case is formed with recess, is used for preventing when Jiang Gai is assemblied on the switch case that the spare fuse and the switch case that remain on lid from interfering.Yet, do not wish for the spare fuse retaining part that is provided with in the containment cap to need to revise the structure of switch case, because this will bring extra restriction to the design of electromagnetic switch.

Equally, under the situation of the electromagnetic switch disclosed in open text H6-43963 of Japanese Utility Model and the S64-55534, when fuse owing to current overload or continue to use when blowing, because the size of fuse, workman (vehicle operators or skilled worker) may meet difficulty in changing fuse.For example, when adopting so-called miniature fuse to come electromagnetic switch compact to design, because the head of fuse is less relatively for the size of fuse mounting portion confining force, so in fact the workman can not pull out fuse by the head that clamps fuse with finger from the fuse mounting portion.Even when fuse is made of standard-sized knife-edge fuse (blade fuse), when the peripheral region had filled up connector and other parts, the workman also can not pull out fuse with finger sometimes.

The inventor has proposed to assemble the fuse puller that is similar to a pair of pliers on electromagnetic switch, and still, this has brought such problem, has promptly increased to be used to be provided with the expense of independent puller and to lack the space that is used to hold this fuse puller.For example,, just exist in the danger of losing the fuse puller in the tool using case process of (such as when the re-type) if the fuse puller is placed in the tool box, perhaps forget with the tool box take on the car may.The fuse puller can be left in the lid, but this can make the size of lid become big, brings difficulty thereby give around the layout designs of electromagnetic switch.

Summary of the invention

In view of these problems of the prior art, first purpose of the present invention is to provide a kind of lid that is used for electromagnetic switch, it allows the spare fuse retaining part to be formed in this lid, and can not interfere with other parts, and does not need switch case is changed.

Second purpose of the present invention is to provide a kind of lid that is used for electromagnetic switch, and it allows the spare fuse retaining part to be formed in this lid, and can not increase the overall dimension of electromagnetic switch substantially.

The 3rd purpose of the present invention is to provide a kind of lid that is used for electromagnetic switch, and from the outside as seen it can make the spare fuse that remains in the spare fuse retaining part of lid, thereby can guarantee to exist the spare fuse of correct amperage.

The 4th purpose of the present invention is to provide a kind of lid that is used for electromagnetic switch, and it also can be used as the fuse puller, thereby need not to deposit the exceptional space of independent fuse puller.

The 5th purpose of the present invention is to provide a kind of lid that is used for electromagnetic switch, and it also can be used as the fuse puller, thereby can guarantee that it is available when needs fuse puller.

The 6th purpose of the present invention is to provide a kind of lid that is used for electromagnetic switch, and it also can be used as the fuse puller, is used to the required extra charge of fuse puller that provides independent thereby saved.

According to the present invention, by being provided, can realize on a kind of lid that is used for electromagnetic switch to these purposes of small part and other purpose, this electromagnetic switch comprises pair of terminal and is used for keeping with functional mode the fuse mounting portion of fuse, wherein a pair of cable is connected terminal with this, described lid is characterised in that, described lid forms the partition wall that cable end is separated from each other, and this partition wall is provided with the spare fuse retaining part that is used to keep spare fuse.

Because spare fuse itself is as the part of the partition wall that the cable terminal end that is connected with the terminal of electromagnetic switch is separated,, and can not influence the existing layout of electromagnetic switch so the spare fuse retaining part can be located in the lid.

According to a preferred embodiment of the present invention, described lid is made by transparent plastic material, and the upper surface of spare fuse is relative with the inner surface of the upper wall of lid.Therefore, can know the existence of spare fuse from the outside of lid, and need not dismantle this lid and just can see the amperage that is marked on the spare fuse upper surface, thereby can avoid failing spare fuse with correct amperage is placed on mistake in the spare fuse retaining part.

Usually, described partition wall comprises a pair of relative wall part, and the spare fuse retaining part comprises the groove that is limited between this relative wall part.Preferably, described wall part extends internally with the relation that is parallel to each other from the lateral wall of lid.Therefore, the structure of lid is simplified, and the profile of lid can be made smoothly and identical or similar with traditional lid.This can make the processing cost minimum, and compatible mutually with the lid of existing design.

For the ease of being inserted into the spare fuse retaining part from spare fuse retaining part dismounting spare fuse or with spare fuse, each wall part edge place within it all is provided with otch, to expose the part of the spare fuse that keeps by spare fuse maintaining part branch, thereby make the exposed portions can be approaching, so that from the spare fuse retaining part, pull down spare fuse or be inserted in the spare fuse retaining part.

According to a further aspect in the invention, the described bonding part that is covered with, be used for engaging the part of the fuse that is installed in the fuse mounting portion, so that remove fuse from the fuse mounting portion, therefore, do not need independent fuse puller just fuse can be removed from the fuse mounting portion.Usually, the bonding part comprises bump bonding, is used for engaging in the recess that is formed in the fuse.Yet the joint form between bonding part and spare fuse is not limited to this set, but can comprise other any known setting.

From the fuse mounting portion, pull out the required strength minimum of fuse in order to make, the main part of electromagnetic switch can be provided with a part, when in the recess that is bonded on fuse by the bonding part that makes lid fuse being pulled out from the fuse mounting portion, this part is as the pivot point of leverage.This part as the pivot point of leverage generally includes vertical ribs, and this vertical ribs is extended and two terminals are separated from each other from the main part of electromagnetic switch.For making things convenient for engaging between bonding part and the fuse, the bonding part can further comprise a guide protrusions, when in the coupling recess that the bump bonding of bonding part is assemblied in fuse by the outline that engages fuse, described guide protrusions provides guide effect.

Preferably, described lid comprises that covering is installed in the fuse cover part of the fuse in the fuse mounting portion, and the setting of described bonding part on the outer surface, especially on the upper surface of fuse cover part.Therefore, bonding part and bonding operation that is installed in the fuse in the fuse mounting portion and the operation of removing lid from electromagnetic switch are carried out continuously, thereby allowed to remove fuse with effective and efficient manner.

Description of drawings

Below with reference to accompanying drawing the present invention is described, in the accompanying drawings:

Fig. 1 is electromagnetic switch and the stereogram that adopts lid of the present invention thereof;

Fig. 2 is the end view that has the electromagnetic switch of lid, and its middle cover illustrates with section;

Fig. 3 keeps the view of the major part of groove for the spare fuse that direction is seen shown in the arrow A in Fig. 2;

Fig. 4 is the bonding part of expression lid and the view of the form that engages of fuse;

Fig. 5 is the bonding part of expression lid and the view of the engagement state between the fuse; With

Fig. 6 removes the view of mode for the expression fuse.

Embodiment

Fig. 1 shows and adopts the electromagnetic switch that is used for selectively starting the automobile engine starting circuit of the present invention.This electromagnetic switch 1 comprises solenoid, under the effect of solenoid and spring pistons reciprocating, engage or contact assembly that separates and the switch case (electromagnetic switch main body) 2 of holding these parts according to the motion of piston.Because the disclosed structural similarity of its structure and patent documentation 1 (reality is opened clear 64-55534), so omitted detailed description to this structure.

The connector 3 that is used to connect control line is installed on the upper surface of switch case 2, is used to the fuse mounting portion 5 and a pair of cable terminal 6a and the 6b that is used for

stube cable

7a and 7b terminal ends that hold fuse (miniature fuse) 4 and be connected to internal circuit.Be equipped with being connected respectively on corresponding cable terminal 6a and the 6b by bolt 8 of crimp contact 10, and

cable terminal

6a and 6b are separated from each other by the vertical ribs 9 of extending from switch case 2 from the terminal ends of the cable 7a of starter motor with from the terminal ends of the cable 7b of battery.

Each crimp contact 10 that is connected with the terminal ends of

corresponding cable

7a and 7b has all formed bolted part 10a, cable end crimping part 10b and cable sheathing retaining part 10c, and bolted part 10a is from cable termination crimping part 10b and cable sheathing retaining part 10c vertical curve, thereby make side-prominent from switch case 2 of the cable end crimping part 10b of each crimp contact 10 and cable sheathing retaining part 10c, and

cable

7a and 7b are extended downwards from this.

The fuse mounting portion 5 of electromagnetic switch 1 and

cable terminal

6a and 6b are covered by dismountable lid 11, and this lid is made by the plastic material of transparent and electric insulation, and is configured as the box with bottom end opening.

Lid 11 is provided with: a pair of slit 13, and they are formed on covers on 11 sides respect to one another, is used to hold the respective rib 12 on the respective side that is formed on switch case 2, covers 11 with respect to switch case 2 location thereby make; Groove 14 is used to hold the rib 9 on the upper surface that is vertically set on switch case 2, opens thereby described paired

cable terminal

6a and 6b are divided; And partition wall 15, be used for the cable end crimping part 10b and the cable sheathing retaining part 10c of one of them crimp contact 10 are separated with these parts of another crimp contact 10; And fuse cover (fuse cover part) 16, be used to cover fuse 4 and fuse retaining part 5.

On every side of fuse cover 16, all be formed with tongue piece 19, the lower end of tongue piece 19 is provided with hole 18, be used to hold the projection 17 on the respective side that is arranged on switch case 2, can be thereby cover 11 by means of the elasticity of tongue piece 19, by with the projection 17 of respective aperture 18 resilient engagement, keep securely by switch case 2.By the upper end of tongue piece 19 is pushed toward each other and being made the lower end of tongue piece 19 separated from one another, and projection 17 is broken away from from corresponding hole 18, can easily lid 11 be removed from switch case 2 with finger.

Partition wall 15 is provided with the wall part of pair of parallel, this is limited with the maintenance groove 21 that is used to keep spare fuse 20 to wall part between them, and this maintenance groove 21 is used for keeping spare fuse 20 by forming the elasticity cover 11 material by spare fuse 20 is applied slight pressure.According to this layout, because remain on the part that spare fuse 20 in this maintenance groove 21 forms partition wall 15, this partition wall separates the cable end crimping part 10b and the cable sheathing retaining part 10c of one of them crimp contact 10 with these parts of another crimp contact 10, can be arranged on and cover 11 so be used for the retaining part of spare fuse 20, and can not influence the existing layout of electromagnetic switch.Otch 22 is located on the inner edge of each wall part of partition wall 15, thereby when making spare fuse 20 shift-ins or shifting out when keeping groove 21, allows spare fuse 20 to remain between the finger.

The upper end face of fuse cover 16 is provided with bonding part 25, is used to engage the head 4a and the coupling recess 4b of fuse 4.Bonding part 25 comprises: pair of engaging projection 26, and they are arranged on the side of contiguous connector 3 with spaced relation; Be essentially L shaped guide protrusions 27 with a pair of, they also are to be arranged on the either side of bump bonding with spaced relation.Spacing between the width of each bump bonding 26 and the bump bonding 26 all is chosen as corresponding to the described paired recess 4b that is arranged on fuse 4 one sides.The size of guide protrusions 27 is set to can keep the head 4a of fuse 4 securely when bump bonding 26 is assemblied among the corresponding coupling recess 4b.

Spare fuse 20 is contained in and keeps in the groove 21, and its upper surface is similar to fuse 4 and faces up like that in actual use, and its upper surface is facing to the inner surface that covers 11 upper wall 23.Therefore, can know the existence of spare fuse from the outside of transparency cover 11, and need not dismantle this lid 11 and just can see the amperage that is marked on the spare fuse upper surface, thereby can avoid failing spare fuse with correct amperage is placed on mistake in the spare fuse retaining part.As shown in Figure 3, apparent surface by two maintenance grooves 21 that wall part limited of partition wall 15 also is provided with rib 24 respect to one another (this rib omits) in Fig. 2, leave the corresponding spacing of thickness with the lead terminal of spare fuse 20 between the rib 24, thereby can avoid spare fuse 20 in keeping groove 21, to be placed upside down.

4 to 6 operator schemes of describing illustrated embodiment with reference to the accompanying drawings.

When vehicle operators was opened starting switch with the startup vehicle motor, fuse 4 was owing to excessive the blowing of electric current of crossing electromagnetic switch because of some cause flow, so engine can not turn round.Can make engine running by changing fuse 4.Workman (vehicle operators or auto mechanic) then the upper end that makes tongue piece 19 toward each other and cramping, and will cover 11 and unload from electromagnetic switch 1.As shown in Figure 5, the workman keeps the lid 11 of dismounting with hand 30, and bonding part 25 is pushed against a side of fuse 4.As shown in Figure 5, shift onto in the space that limits between guide protrusions 27 by the head 4a with fuse 4, thereby bonding part 25 is correctly located with respect to fuse 4, then bump bonding 26 just is assembled among the coupling recess 4b.

Then, the workman is as shown in Figure 6 along counter clockwise direction rotatable cover 11.This makes the lower end of fuse cover 16 engage with vertical ribs 15, and be rotated further cover 11 make fuse 4 since lid 11 around by the point of above-mentioned joint given pivot point (in Fig. 6, representing) by P leverage and from fuse mounting portion 5, be drawn out.In other words, according to shown in embodiment because fuse can be effortlessly dismantled in the leverage that is provided by the vertical ribs 15 as pivot element.

In case with fuse 45 dismountings from the fuse mounting portion, the workman just chooses spare fuse from covering 11, and this spare fuse 20 is assembled in the fuse mounting portion 5.

Invention has been described according to specific embodiment, but the present invention is not limited to this embodiment, but can various mode implement.For example the fuse of the electromagnetic switch in the foregoing description is made of miniature fuse, but also can be made of the knife-edge fuse of rule.The bonding part also can be and is similar to a pair of pliers that keeps the head of fuse from both sides, and can leave in the other parts of fuse cover.And, only otherwise break away from the spirit of being set forth in the appended claims of the present invention, just can suitably revise the structure and the shape of electromagnetic switch main body and lid.

This quote carried out the initial Japanese patent application that preference requires according to Paris Convention content as a reference.

Claims

1. lid that is used for electromagnetic switch, this electromagnetic switch comprise pair of terminal and be used for keeping with functional mode the fuse mounting portion of fuse, and wherein a pair of cable is connected terminal with this, and described lid is characterised in that:

Described lid forms the partition wall that the end with described cable is separated from each other, and described partition wall is provided with the spare fuse retaining part that is used to keep spare fuse.

2. the lid that is used for electromagnetic switch according to claim 1 is characterized in that described lid is made by transparent plastic material, and the upper surface of described spare fuse is relative with the inner surface of the upper wall of described lid.

3. the lid that is used for electromagnetic switch according to claim 1 is characterized in that, described partition wall comprises a pair of relative wall part, and described spare fuse retaining part comprises the groove that is limited between the described relative wall part.

4. the lid that is used for electromagnetic switch according to claim 3 is characterized in that, described wall part extends internally with the relation that is parallel to each other from the lateral wall of described lid.

5. the lid that is used for electromagnetic switch according to claim 4, it is characterized in that, each described wall part edge within it all is provided with otch, to expose the part of the spare fuse that keeps by spare fuse maintaining part branch, thereby make the exposed portions can be approaching, so that from the spare fuse retaining part, pull down spare fuse and spare fuse is inserted in the described spare fuse retaining part.

6. the lid that is used for electromagnetic switch according to claim 1 is characterized in that, the described bonding part that is covered with is used for engaging the part of the fuse that is installed in described fuse mounting portion, to pull down described fuse from described fuse mounting portion.

7. the lid that is used for electromagnetic switch according to claim 6, it is characterized in that, described lid comprises that covering is installed in the fuse cover part of the fuse in the fuse mounting portion, and described bonding part is arranged on the outer surface of this fuse cover part.

8. the lid that is used for electromagnetic switch according to claim 7 is characterized in that described bonding part is arranged on the upper surface of described fuse cover part.

9. the lid that is used for electromagnetic switch according to claim 6 is characterized in that described bonding part comprises bump bonding, and this bump bonding is used for being bonded in the recess that is formed at fuse.

10. the lid that is used for electromagnetic switch according to claim 9, it is characterized in that, the main part of described electromagnetic switch is provided with a part, when in the recess that is bonded on fuse by the bonding part that makes lid fuse being pulled out from the fuse mounting portion, this part is as the pivot point of leverage.

11. the lid that is used for electromagnetic switch according to claim 10, it is characterized in that, described bonding part also comprises guide protrusions, and when in the coupling recess that the bump bonding of bonding part is assemblied in fuse by the outline that engages fuse, described guide protrusions provides guide effect.

12. the lid that is used for electromagnetic switch according to claim 10 is characterized in that, the part of described pivot point as leverage comprises vertical ribs, and this vertical ribs is extended and described two terminals are separated from each other from the main part of electromagnetic switch.