CN104392873B - Fuse mounting structure - Google Patents
Fuse mounting structure Download PDFInfo
- Publication number
- CN104392873B CN104392873B CN201410776692.9A CN201410776692A CN104392873B CN 104392873 B CN104392873 B CN 104392873B CN 201410776692 A CN201410776692 A CN 201410776692A CN 104392873 B CN104392873 B CN 104392873B
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- China
- Prior art keywords
- fuse
- boss
- insertion section
- installation portion
- insurance block
- 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.)
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- 238000003780 insertion Methods 0.000 claims abstract description 57
- 230000037431 insertion Effects 0.000 claims abstract description 57
- 238000009434 installation Methods 0.000 claims description 44
- 238000001746 injection moulding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 101150041759 boss gene Proteins 0.000 description 35
- 239000002184 metal Substances 0.000 description 31
- 229910052751 metal Inorganic materials 0.000 description 31
- 239000012634 fragment Substances 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/22—Intermediate or auxiliary parts for carrying, holding, or retaining fuse, co-operating with base or fixed holder, and removable therefrom for renewing the fuse
Landscapes
- Fuses (AREA)
Abstract
The invention provides a fuse mounting structure. The fuse mounting structure comprises an electric appliance box main body and a fuse holder, wherein slots are formed in the two sides of the electric appliance box main body; first bosses and second bosses are arranged inside the slots; the fuse holder comprises a fuse mounting part, clamping parts positioned on the two sides of the fuse mounting part, and two insertion parts positioned below the fuse mounting part; the insertion parts comprise sliding chutes with sealed upper ends and lower ends, and bulges protruded in the directions far away from the sliding chutes; the insertion parts of the fuse holder are inserted in the slots of the electric appliance box main body; the second bosses are positioned in the sliding chute; under the working condition, the first bosses are buckled with the bulges, and meanwhile the second bulges are not in contact with the lower ends of the sliding chutes; under the out-of-service condition, the first bosses squeeze the bulges to enable the insertion parts to be deformed towards the sliding chutes, and meanwhile the second bosses are in contact with the lower ends of the sliding chutes. The fuse mounting structure disclosed by the invention is convenient to operate and high in safety.
Description
Technical field
The present invention relates to electric components field is and in particular to a kind of fuse attachment structure.
Background technology
Fuse (also known as fuse), is a kind of important protection device preventing current overload.
As shown in Figures 1 to 5, fuse 1 is inserted directly into electrical equipment box body 2 to fuse attachment structure in prior art one
Interior, the metal terminal 3 in electrical equipment box body 2 clamps fuse 1, and whole mounting structure is entered by released state as shown in Figure 1
Enter installment state as shown in Figure 2.
Fuse attachment structure in prior art one fuse only as shown in Figure 11 and electrical equipment box body 2 divide completely
From released state and the installment state two states that are combined with electrical equipment box body 2 of fuse 1 as shown in Figure 2, and can not be real
The rapid translating of existing two states.When needing circuit is carried out power-off maintenance, or during charging equipment transport, disabling,
Need to extract fuse 1.First, fuse 1 needs individually placed after extracting, and easily produces and loses, is affected by the external environment
The risk damaged, and it is frequently necessary to the fuse using a lot of different sizes simultaneously due on a charging equipment, therefore exist
Recover when using, to easily cause the risk of fuse misloading；Secondly the dismounting of fuse typically requires specific purpose tool, dismounting not side
Just；Again, in the mounted state, fuse 1 only leans on the clamping force of the metal terminal 3 in electrical equipment box body 2 to remain fixed in electricity
In device box body 2, fuse is about 1, left and right directions be all likely to occur little rock, particularly under the conditions of dither easily pine
Move and come off, or due to insuring powered characteristic, car load vibration can cause electric spark or electrical part irregular working, safe and reliable
Property is not good enough；Finally, it is impossible to differentiate the insert state of fuse 1, whether fuse 1 for the apparent condition after fuse 1 assembling
Contacting metal terminal 3 middle part (or middle and upper part), if reach safe handling requirement and cannot learn in fact it could happen that inserting not enough or mistake
Deep situation, insertion is too short, if the taper position of the pin of fuse 1 shown in contact Fig. 4 and Fig. 5, can cause clamping not
Jail, is easily caused loose contact, and insertion is too deep, and the pin end of fuse 1 is exposed long, easily passes through terminal or housing 2, due to protecting
Dangerous piece is powered, has certain potential safety hazard.
Fuse attachment structure in prior art two such as Authorization Notice No.: cn 1848349b, denomination of invention: " fuse
Disclosed in the Chinese invention patent of box ", using the opposing arms in fuse box, fuse is maintained at non-working condition, this
Solve the problems, such as that fuse is individually placed to be brought.But, in practical operation, it is primarily due to fuse and is constantly in insurance
In silk box, operating personnel cannot intuitively confirm fuse whether really departing from the contact with metal terminal it is likely that
After causing to pull out fuse outside operating personnel, fuse is still contacted with metal terminal, actually grasps in follow-up maintenance work
It is in hot line job as personnel, this maloperation is breakneck, and visually intuitive judgment can only be passed through after mounting
Whether it is assembled in place, but cannot accomplish accurately to judge；Secondly, even if fuse is extracted by operating personnel really disengaging it from
Contact with metal terminal, but under insurance is extracted, maintain the lasting reliability of off-position particularly significant, when operating personnel are not little
When the heart pushes fuse with body or instrument, fuse can return back to installment state and contact with metal terminal, now operator
Member is simultaneously unaware that return leads to circuit ON to fuse, however it remains the risk of powered maloperation is that is to say, that insure
Silk is under released state, and in electrical appliance kit, metal terminal and the disconnection safeguard measure shortage of the pin of fuse are effectively isolated guarantor
Shield, maintenance, situations such as operational error, it is easily caused unexpected contact conducting.In addition, prior art two still cannot solve fuse
Dismounting inconvenience, the caducous problem of appearance.And, prior art two is there is still a need for (i.e. safety clip class is torn open using special hookup
Unload instrument) pull down insurance, put it in the installation transition structure being designed in fuse box.
Content of the invention
Present invention aim to address the problems referred to above, provide one kind can prevent fuse from losing simultaneously, fill by mistake, grasp by mistake
Make, and easy accessibility, fuse attachment structure difficult for drop-off.
For achieving the above object, The embodiment provides following technical scheme:
A kind of fuse attachment structure, comprising: electrical equipment box body, described electrical equipment box body both sides are provided with slot, described slotting
There is in groove first boss and second boss；Insurance Block, described Insurance Block has fuse installation portion, is located at described fuse peace
The clamping part of dress portion both sides, two insertion sections below described fuse installation portion, described insertion section has upper and lower ends
The chute of closing and the projection of the direction protrusion away from described chute；Described electrical appliance kit is inserted in the insertion section of described Insurance Block
In the slot of body, described second boss is located in described chute；Under in working order, described first boss is blocked with described projection
It is combined, simultaneously the described second boss not lower end in contact with described chute；In a non-operative state, described first boss is squeezed
Described projection is pressed to make the deformation towards described chute for the described insertion section generation, the lower end of described second boss and described chute simultaneously
Contact.
Preferably, below described installation portion, between described insertion section, also there is secondary insertion section, described electrical equipment box body
On be also correspondingly provided with secondary slot, described pair insertion section insertion described pair slot.
Preferably, described pair insertion section is H-shaped, is provided with positive stop strip in described pair slot, recessed below described pair insertion section
Groove and described positive stop strip cooperation.
Preferably, in working order under described electrical equipment box body in described Insurance Block install fuse clamping force big
In the clamping force to described fuse for the described fuse installation portion.
Preferably, the upper end of described clamping part is higher than the upper surface of described installation portion.
Preferably, described Insurance Block injection moulding integrated molding.
Preferably, it is provided with raised line in described fuse installation portion.
Preferably, described first boss and described second boss are halfpace, and the face directed downwardly of described first boss is oblique
Face, the face within towards described slot are plane, and the face upward of described second boss is inclined-plane, face directed downwardly is plane.
Preferably, described clamping part is towards the both sides flare of described Insurance Block.
Preferably, after installation insurance silk, the upper surface flush of the upper surface of described fuse and described fuse installation portion.
In the present invention, installation insurance silk is come with the fuse installation portion of Insurance Block, lower slotting Insurance Block enters working condition,
Fuse in fuse mounting seat metal terminal intrinsic with electrical appliance kit contacts, in addition to metal terminal clamping fuse, the
One boss is similarly fuse with raised engaging and provides confining force it is ensured that fuse does not fall off under dither；And need disconnected
When electric, pinch clamping part pull-up Insurance Block with hand, until end in contact under second boss and chute, now operating personnel can feel bright
Aobvious jam is it was demonstrated that fuse is departed from, simultaneously because the presence of chute makes with the intrinsic metal terminal of electrical appliance kit really
Insertion section there is certain elasticity, first boss expression lobes and make insertion section produce deformation and make first boss to insertion section
Produce certain chucking power it is ensured that Insurance Block oneself will not fall and be held in off working state, hot line job will not be produced
Risk.In a non-operative state, fuse is still located in fuse mounting seat simultaneously, thus without cause lose and the later stage
Mistake dress problem.
Further, secondary insertion section and the cooperation of secondary slot ensure that the reliable, firm of Insurance Block fixation.
Further, the groove below secondary insertion section and the positive stop strip in secondary slot coordinate the positioning that ensure that Insurance Block
More accurately and reliably.
Further, the raised line in fuse installation portion can strengthen the reliability fixing to fuse.
Further, electrical equipment box body is descended to be more than insurance to the clamping force of the fuse installed in Insurance Block in working order
Silk installation portion to the clamping force of fuse that is to say, that when pushing Insurance Block, due to electrical equipment box body will be overcome to fuse
Clamping force make the difficulty that the degree of difficulty that fuse is contacted deviates from fuse installation portion than fuse with metal terminal
Degree is big, therefore pushes merely although Insurance Block is pressed down entrance working condition during Insurance Block, but fuse can be in Insurance Block
Automatically deviate from, will not metal terminal intrinsic with electrical appliance kit contact, substantially now circuit remains disconnection, only operates
Personnel in the mind press the fuse of fuse installation portion and its inside in the same time, and fuse just can be forced to contact with metal terminal, this
Sample avoids maloperation and operating personnel is brought with personal injury risk.
Further, the upper end of clamping part is higher than the upper surface of installation portion, and therefore operating personnel miss in body or instrument
Clamping part can be pushed first and be not easy to be pressed onto fuse during contact Insurance Block, and the space between clamping part carries for fuse
Supply abjection space, therefore fuse can be deviate from after Insurance Block is pressed down entrance working condition.And, needing to change insurance
It is only necessary to operating personnel's hand pinches clamping part during silk, pull-up Insurance Block pushes Insurance Block again, fuse will automatically deviate from it is not necessary to
Using specific purpose tool, easy to operate.
Further, first boss lower surface, for inclined-plane so that Insurance Block is relatively easily extracted, enters off working state,
And second boss lower surface be plane so that Insurance Block enter off working state after be not easy to continue to extract, thus taking into account
The convenience of State Transferring and property difficult for drop-off.
Further, clamping part, towards the both sides flare of Insurance Block, makes operating personnel be easier to pinch Insurance Block, meets people
Machine engineering.
Further, after installation insurance silk the upper surface of fuse and fuse installation portion upper surface flush, by right
By surface observation, the control of each part dimension, easily can confirm that the insertion depth of fuse is just suitable.
Brief description
Next by combining accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is that the state that in fuse attachment structure of the prior art, fuse is kept completely separate with electrical equipment box body is illustrated
Figure；
Fig. 2 is the installment state schematic diagram of fuse and electrical equipment box body in fuse attachment structure of the prior art；
Fig. 3 is the top view of the fuse attachment structure in Fig. 2；
Fig. 4 is the sectional view along the a-a line in Fig. 3；
Fig. 5 is the sectional view along the b-b line in Fig. 3；
Fig. 6 is the explosive view of the fuse attachment structure of embodiments of the invention；
Fig. 7 is the stereogram of the fuse of embodiments of the invention；
Fig. 8 is the stereogram of the Insurance Block of embodiments of the invention；
Fig. 9 is the stereogram of another angle of the Insurance Block in Fig. 8；
Figure 10 is the stereogram of the electrical equipment box body of embodiments of the invention；
Figure 11 is the stereogram of another angle of the electrical equipment box body in Figure 10；
Figure 12 is the top view of the electrical equipment box body in Figure 10；
Figure 13 is the upward view of the electrical equipment box body in Figure 10；
Figure 14 is the stereogram of yet another angle of the electrical equipment box body in Figure 10；
Figure 15 is the partial enlarged drawing of the slot in Figure 14；
Figure 16 is the assembly process figure with electrical equipment box body for the Insurance Block of embodiments of the invention；
Figure 17 is the stereogram of the metal terminal of embodiments of the invention；
Figure 18 be embodiments of the invention fuse attachment structure in working order under stereogram；
Figure 19 is the left side view of the fuse attachment structure in Figure 18；
Figure 20 is the fuse attachment structure left side view in a non-operative state of embodiments of the invention；
Figure 21 be embodiments of the invention fuse attachment structure in working order under top view；
Figure 22 is the sectional view along the c-c line in Figure 21；
Figure 23 is the sectional view along the d-d line in Figure 21；
Figure 24 is the sectional view along the e-e line in Figure 21；
Figure 25 is the stereogram of yet another angle of the Insurance Block of embodiments of the invention.
Upper in figure description of symbols: 1, fuse, 2, electrical equipment box body, 100, fuse, 110, pin, 200, Insurance Block,
210th, fuse installation portion, 211, installing hole, 212, raised line, 220, clamping part, 230, insertion section, 231, raised, 232, lower end,
233rd, upper end, 234, chute, 240, secondary insertion section, 241, upper groove, 242, low groove, 300, electrical equipment box body, 310, slot,
311st, first boss, the 3111, first face, the 3112, second face, 312, second boss, the 3121, the 3rd face, 3122, fourth face,
320th, secondary slot, 321, positive stop strip, 330, spacing preiection, 400, metal terminal, 410, installing hole, 420, shell fragment.
Specific embodiment
With reference to Fig. 6, the fuse attachment structure in the present embodiment includes Insurance Block 200 and electrical equipment box body 300 two parts,
And in order to clear, the metal terminal 400 being fixed in electrical equipment box body 300 is blown as a single part.Wherein
Insurance Block 200 is used for installation insurance silk 100, and Insurance Block 200 completes the installation to fuse 100 in insertion electrical equipment box body 300.
With reference to Fig. 7, in the present embodiment, fuse 100 is the insert type fuse of 10a, and fuse 100 has two and inserts
Pin 110, tang length is h7.This fuse is that automotive field commonly uses fuse.Following description is all with blade inserting
Be described as a example fuse 100, it is to be understood by those skilled in the art that Insurance Block 200 can also install glass pipe type,
The polytypes such as ceramic pipe type, the fuse of model.
In conjunction with Fig. 8, Fig. 9 and Figure 16, Figure 25, Insurance Block 200 has 210, two clamping parts 220, two of fuse installation portion
Individual insertion section 230 and a secondary insertion section 240.Installing hole 211 is had on fuse installation portion 210, for inserting fuse
100.It is provided with raised line 212 in installing hole 211, the effect of raised line 212 is and the groove fit on fuse 100, to fuse
100 apply certain clamping force, prevent fuse 100 from deviating from installing hole 100 easily, enhancing is fixed to fuse 100
Reliability.Clamping part 220 is located at the both sides of fuse installation portion 210, and the upper end of clamping part 220 is higher than fuse and installs
The upper surface in portion 210.The Main Function of clamping part 220 is to allow the operator to pinch clamping part 220 to Insurance Block 200 with hand
Plugged, therefore clamping part 220, towards the both sides flare of Insurance Block 200, more meets ergonomics, be easy to operate.Protecting
Below dangerous silk installation portion 210, there are two insertion sections 230, insertion section 230 has chute 234, and the upper end 233 of chute 234
With lower end 232 closed at both ends.On insertion section 230, also there is the projection 231 that the direction away from chute 234 is protruded.From figure
6 is apparent visible, and secondary insertion section 240 is located between two insertion sections 230, is H-shaped, and the top of secondary insertion section 240 is upper groove
241, lower section is low groove 242.As seen from Figure 25, the height of secondary insertion section 240, in other words the bottom surface of upper groove 241 with recessed
Height between the top surface of groove 242, is h5.As seen from Figure 9, the bottom of the upper surface of fuse installation portion 210 and upper groove 241
Distance be h2, the distance at the top of the lower surface of fuse installation portion 210 and low groove 241 is h3.Fuse 100 is installed to
After on fuse installation portion 210, partly just straddle in upper groove 241 between two pins 110.Preferably Insurance Block 200
For injection moulding integrated molding part, the rigidity of insertion section 230 is made to weaken due to the presence of chute 234, thus having certain elasticity.
It is in conjunction with Figure 10, Figure 11, Figure 12, Figure 13, Figure 14 and Figure 16, corresponding with two insertion sections 230 of Insurance Block 200,
Electrical equipment box body 300 both sides are provided with slot 310, and have first boss 311 and second boss 312 in slot 310.With insurance
The secondary insertion section 240 of of seat 200, to correspondence, electrical equipment box body 300 is additionally provided with secondary slot 320, is provided with spacing in secondary slot
Bar 321.
Apparent visible in conjunction with Figure 14 and Figure 15, the first boss 311 in slot 310 and second boss 312 are halfpace.
First face 3111 directed downwardly of first boss 311 is inclined-plane, and that is, the first face 3111 is all not parallel with horizontal plane and vertical plane, and the
Second face 3112 within towards slot 310 of one boss 311 is plane, and that is, the second face 3112 is a perpendicular.Second
3rd face 3121 directed downwardly of boss 312 is plane, and that is, the 3rd face 3121 is a horizontal plane, and second boss 312 is upward
Fourth face 3122 be inclined-plane, that is, fourth face 3122 is all not parallel with horizontal plane and vertical plane.
In conjunction with Figure 16, Figure 18 to Figure 20, after fuse 100 is installed on Insurance Block 200, the insertion section 230 of Insurance Block 200
In the slot 310 of insertion electrical equipment box body 300, the secondary slot of electrical equipment box body 300 is inserted in the secondary insertion section 240 of Insurance Block 200
In 320, the second boss 312 of electrical equipment box body 300 is located in the chute 234 of Insurance Block 200.
Under working condition shown in Figure 18 and Figure 19, that is, in the pin 110 and electrical equipment box body 300 of fuse 100
In the state of metal terminal 400 contact, now circuit turn-on, the first boss 311 in slot 310 and the projection of insertion section 230
231 are fastened togather, and first face 3111 of first boss 311 limits Insurance Block 200 and moves upwards abjection, second boss simultaneously
312 are not contacted with the lower end 232 of chute 234, and are to maintain certain distance.In this case, fuse 100 is not only subject to electrical equipment
The clamping force of box body 300, and because the first face 3111 is right to the position-limiting action of Insurance Block 200 and fuse installation portion 210
Even if the clamping action of fuse 100 so that in the case of dither fuse 100 still be not easy deviate from.Meanwhile, secondary slotting
The cooperation entering portion 240 with secondary slot 320 ensure that the reliable, firm of Insurance Block 200 fixation.Recessed below secondary insertion section 240
Groove 242 coordinates the positioning that ensure that Insurance Block 200 more accurately and reliably with the positive stop strip 321 in secondary slot 320.
Operating personnel pinch run into after pulling out Insurance Block 200 on clamping part 220 enter during obvious jam as shown in figure 20
Off working state, the state that is, metal terminal 400 in the pin 110 and electrical equipment box body 300 of fuse 100 departs from, here
Under state, second face 3112 of the first boss 311 in slot 310 extrudes the projection 231 of insertion section 230, so that is produced from insertion section 230
Raw deformation within towards chute 234, makes first boss 311 produce certain chucking power to insertion section 230 it is ensured that Insurance Block
200 will not voluntarily fall and be held in off working state, and second boss 312 is contacted with the lower end 232 of chute 234 simultaneously, limit
Insurance Block 200 processed is further backing out electrical equipment box body 300.In other words, in a non-operative state, Insurance Block 200 and electrical appliance kit basis
Body 300 is in a kind of semi-detached state.It will be appreciated by those skilled in the art that being directed to different types of fuse 100, from such as figure
15 working condition to the such as off working state of Figure 16, in order to ensure fuse 100 really depart from electrical equipment box body 300 in
The contact of metal terminal 400, the extraction distance of Insurance Block 200 should be different, are dimensionally contemplated that the in the design phase
Relative displacement distance in chute 234 for two boss 312 meets the requirement that fuse 100 is departed from metal terminal 400.So,
Insurance Block 200 is pulled out on operating personnel until when feeling obvious jam, that is, mean fuse 100 really and electrical appliance kit
Metal terminal 400 in body 300 departs from, and circuit disconnects, and operating personnel can relievedly carry out maintenance work without there is band
The electrically operated risk leading to personal injury.And, upper pull out Insurance Block 200 after, fuse 100 is still located on fuse installation portion
In 210, be not in lose and later stage dress problem by mistake.During upper pulling out, because the first face 3111 is inclined-plane, therefore operator
Pull out on member is easy, simultaneously because fourth face 3122 is plane, therefore operating personnel are not easy Insurance Block 200 completely from electrical appliance kit
Extract in body 300, this just takes into account the convenience of State Transferring and property difficult for drop-off.
Preferably electrical equipment box body 300 and Insurance Block 200 are designed to meet following condition: in work shape as shown in figure 19
Under state, the clamping force to the fuse 100 installed in Insurance Block 200 for the metal terminal 400 of electrical equipment box body 300, is greater than insurance
The clamping force to fuse 100 for the fuse installation portion 210 of seat 200.This can be by controlling size, the metal of installing hole 211
The distance between terminal 400, the material to Insurance Block 200 and metal terminal 400 material carry out selecting, adopt spring and shell fragment
420 grade various ways are realized, and are only described herein taking shell fragment 420 as a example.Advantage of this is that to work as and push Insurance Block
When 200, due to electrical equipment box body 300 will be overcome so that fuse 100 is contacted with metal terminal 400 clamping force of fuse 100
The degree of difficulty deviate from fuse installation portion 210 than fuse 100 of degree of difficulty big, therefore as shown in figure 20
Push merely although Insurance Block 200 is pressed down enters working condition as shown in figure 19 during Insurance Block 200 under off working state,
But fuse 100 can be deviate from Insurance Block 200 automatically, will not contact with the metal terminal 400 in electrical equipment box body 300, real
In matter, now circuit remains disconnection.Only operating personnel push the fuse 100 of Insurance Block 200 and its inside simultaneously,
Fuse 100 can be forced to contact with metal terminal 400.So avoid maloperation and personal injury is brought to operating personnel, peace
Quan Xinggao, simultaneously when needing to change fuse 100, operating personnel only need on the offensive pinching to pull out Insurance Block 200 on clamping part 220, so
Push merely Insurance Block 200 afterwards again, fuse 100 will be deviate from it is not necessary to use specific purpose tool automatically, easy accessibility.
There is body in view of operating personnel in operation or instrument contacts the risk of Insurance Block 200, the present embodiment by mistake
In the upper end of clamping part 220 be higher than the upper surface of fuse installation portion 210, be so the formation of between clamping part 220
One headspace.Operating personnel can push clamping part 220 first when body or instrument contact Insurance Block 200 by mistake and not allow
Easily it is pressed onto fuse 100, and the headspace between clamping part 220 provides abjection space for fuse 100, therefore protecting
After dangerous seat 200 is pressed down entrance working condition, fuse 100 can be deviate from the space to clamping part 220, and this prevents further
Stop the risk that maloperation brings personal injury to operating personnel, improve security.
With reference to Figure 17, each metal terminal 400 has the shell fragment 420 that installing hole 410 becomes v shape with a pair.
In conjunction with Figure 21 to Figure 24, the inside of electrical equipment box body 300 is provided with spacing preiection 330, and spacing preiection 330 stretches into metal
Thus being fixed on metal terminal 400 in electrical equipment box body 300 in the installing hole 410 of terminal 400.The pin 110 of fuse 100
Working condition turning circuit is entered after insertion v shape shell fragment 420.From Figure 25, the upper surface of fuse 100 and pin 110 it
Between the distance between the upper surface of neutral gear be h1.From Figure 23, positive stop strip 321 arrives the upper surface of electrical equipment box body 300
Difference in height is h4.From Figure 24, the height difference of the v shape bottom of shell fragment 420 bottom to upper groove 241 is h6.From h1 to
The size of h7 designs according to following:
H1=h2, so, fuse 100 installation and in running order when, the upper surface of fuse 100 and guarantor
The upper surface flush of dangerous silk installation portion 210, as shown in figure 22；
H3=h4, so, after fuse 100 is installed in place, low groove 242 is just connected in positive stop strip 321, effectively protects
Fixing of card fuse is reliable and stable, as shown in figure 23；
H5 > h7, so, it is possible to realize isolation between binding post 400 it is ensured that safety.Meanwhile, when Insurance Block 200 is in
Under vacant state, that is, when being in state shown in Figure 20, the mid portion of " h " type, i.e. the height pair of wire connection terminals of secondary insertion section 240
400 are still able to be effectively isolated it is ensured that safety.
H6=0.5 × h7, so, after fuse 100 is installed in place, the bottom of " v " of shell fragment 420 is just connected in insurance
The pin 110 of silk 100 spills the intermediate point of copper sheet it is ensured that insertion depth is suitable.
Although the present invention is described with reference to above example, the present invention is not limited to above-described embodiment, and
Only limited by claim, those of ordinary skill in the art easily can carry out equivalence replacement or change to the present embodiment
Type, but and the essential idea without departing from the present invention and scope.
Claims (9)
1. a kind of fuse attachment structure is it is characterised in that include:
Electrical equipment box body, described electrical equipment box body both sides are provided with slot, have first boss and second boss in described slot；
Insurance Block, described Insurance Block has fuse installation portion, the clamping part being located at described fuse installation portion both sides, is located at institute
State two insertion sections below fuse installation portion, described insertion section has the chute of upper and lower ends closing and away from described
The projection that the direction of chute is protruded；
The insertion section of described Insurance Block is inserted in the slot of described electrical equipment box body, and described second boss is located in described chute；
Under in working order, described first boss is fastened togather with described projection, simultaneously described second boss not with described chute
Lower end in contact；In a non-operative state, described first boss extrudes described projection makes described insertion section produce towards described chute
Deformation, the lower end in contact of described second boss and described chute simultaneously；Under in working order, described electrical equipment box body is to described
The clamping force of the fuse installed in Insurance Block is more than the clamping force to described fuse for the described fuse installation portion.
2. fuse attachment structure according to claim 1 is it is characterised in that below described fuse installation portion, in institute
State between insertion section, also there is secondary insertion section, described electrical equipment box body is also correspondingly provided with secondary slot, described pair insertion section is inserted
Enter described pair slot.
3. fuse attachment structure according to claim 2 is it is characterised in that described pair insertion section is H-shaped, described secondary slotting
It is provided with positive stop strip, the groove below described pair insertion section and described positive stop strip cooperation in groove.
4. fuse attachment structure according to claim 1 is it is characterised in that the upper end of described clamping part is higher than described guarantor
The upper surface of dangerous silk installation portion.
5. fuse attachment structure according to claim 1 is it is characterised in that described Insurance Block injection moulding integrated molding.
6. fuse attachment structure according to claim 1 is it is characterised in that be provided with convex in described fuse installation portion
Bar.
7. fuse attachment structure according to claim 1 is it is characterised in that described first boss and described second boss
It is halfpace, the face directed downwardly of described first boss is inclined-plane, the face within towards described slot is plane, described second boss
Face upward be inclined-plane, face directed downwardly be plane.
8. fuse attachment structure according to claim 1 is it is characterised in that described clamping part is towards described Insurance Block
Both sides flare.
9. fuse attachment structure according to claim 1 is it is characterised in that after installation insurance silk, described fuse
Upper surface and the upper surface flush of described fuse installation portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776692.9A CN104392873B (en) | 2014-12-15 | 2014-12-15 | Fuse mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410776692.9A CN104392873B (en) | 2014-12-15 | 2014-12-15 | Fuse mounting structure |
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| Publication Number | Publication Date |
|---|---|
| CN104392873A CN104392873A (en) | 2015-03-04 |
| CN104392873B true CN104392873B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410776692.9A Expired - Fee Related CN104392873B (en) | 2014-12-15 | 2014-12-15 | Fuse mounting structure |
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| CN (1) | CN104392873B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261536B (en) * | 2015-11-06 | 2017-05-10 | 安徽江淮汽车集团股份有限公司 | Chip-type fuse mounting structure and assembly of the same |
| CN107017140B (en) * | 2016-01-27 | 2021-08-03 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Fuse, fuse assembly and circuit with fuse |
| CN106298395B (en) * | 2016-10-28 | 2018-09-25 | 安徽江淮汽车集团股份有限公司 | Fuse holder assembly |
| CN107444306B (en) * | 2017-07-28 | 2020-06-23 | 安徽江淮汽车集团股份有限公司 | Spare fuse mounting and fixing device for automobile |
| CN107845554B (en) * | 2017-12-06 | 2019-05-28 | 安徽江淮汽车集团股份有限公司 | A kind of structure for fixing fuse |
| CN107978503B (en) * | 2017-12-06 | 2019-02-19 | 安徽江淮汽车集团股份有限公司 | A kind of structure for fixing fuse |
| CN109037003A (en) * | 2018-06-20 | 2018-12-18 | 国网江苏省电力有限公司泰州供电分公司 | A kind of fuse connection terminal |
| CN109494137B (en) * | 2018-11-27 | 2023-09-22 | 新乡市光明电器有限公司 | Spare fuse cabin and vehicle-mounted fuse box |
| CN110509028A (en) * | 2019-08-15 | 2019-11-29 | 上海李尔实业交通汽车部件有限公司 | A kind of press fitting inspection equipment and technique for fuse box |
| CN111806367A (en) * | 2020-08-31 | 2020-10-23 | 安徽江淮汽车集团股份有限公司 | Electrical apparatus box and car |
| CN113113275A (en) * | 2021-03-23 | 2021-07-13 | 东风柳州汽车有限公司 | Novel safety piece mounting structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09198993A (en) * | 1996-01-12 | 1997-07-31 | Yazaki Corp | Holder for blade fuse |
| KR101373727B1 (en) * | 2007-10-02 | 2014-03-13 | 타이코에이엠피(유) | The fastening device of the low profile fuse for a vehicle |
| JP5813397B2 (en) * | 2011-07-12 | 2015-11-17 | 矢崎総業株式会社 | Fuse holder, fuse connection method using the fuse holder, and fuse connection structure provided with the fuse holder |
| CN204230197U (en) * | 2014-12-15 | 2015-03-25 | 安徽江淮汽车股份有限公司 | A kind of fuse attachment structure |
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2014
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| CN104392873A (en) | 2015-03-04 |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee after: ANHUI JIANGHUAI AUTOMOBILE GROUP Corp.,Ltd. Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Patentee before: ANHUI JIANGHUAI AUTOMOBILE Co.,Ltd. |
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