CN201893254U - Power-off switch and installation structure of power-off switch and shell - Google Patents
Power-off switch and installation structure of power-off switch and shell Download PDFInfo
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- CN201893254U CN201893254U CN2010206401417U CN201020640141U CN201893254U CN 201893254 U CN201893254 U CN 201893254U CN 2010206401417 U CN2010206401417 U CN 2010206401417U CN 201020640141 U CN201020640141 U CN 201020640141U CN 201893254 U CN201893254 U CN 201893254U
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Abstract
The utility model provides a power-off switch and an installation structure of the power-off switch and a shell. The power-off switch comprises a base, an upper cover installed on the base, and two conductive mandrels installed in the upper cover and electrically connected with each other, wherein the base is provided with two stepped holes which are mutually separated, each stepped hole is internally provided with a conductive mandrel holder, a first insulation sleeve and a second insulation sleeve, and the first insulation sleeves and the second insulation sleeves are arranged between the conductive mandrel holders and the stepped holes and cover the conductive mandrel holders. The power-off switch has a simple structure and is convenient to install and disassemble, and the insulativity can be enhanced. The installation structure has better sealability, and external water or other liquid can not enter into the shell.
Description
Technical field
The utility model relate to a kind of cut-off switch and with the mounting structure of shell.
Background technology
In some circuit (such as electrokinetic cell circuit of electric automobile or hybrid vehicle),, cut-off switch need be set for safety and consideration easy to maintenance.Cut-off switch can be by operating personnel's manual operation, makes closing of circuit or circuit is disconnected by force.
Cut-off switch generally includes plastic base, be provided with two binding posts in the plastic base, binding post and plastic base are one-body molded by plastic technology, though adopt plastic technology simple in structure, the bad control of the process conditions of moulding causes the defective tightness that combines between binding post and the plastic casing, but operate in the process of cut-off switch operating personnel, the power that binding post is subjected to is bigger, and binding post is easily loosening, causes cut-off switch to lose efficacy.And adopt between each part behind the plastic technological forming and can not dismantle, if there is certain damage parts then can only integral replacing, there be waste.
The utility model content
The utility model provides a kind of cut-off switch for solving the various deficiencies that the plastic technology of above-mentioned employing exists, and this cut-off switch is simple in structure, and mounting or dismounting are convenient, and reinforced insulation.
Cut-off switch of the present utility model comprises: pedestal, can be installed to loam cake on the pedestal and two and be installed in the loam cake and the conduction mandrel that is electrically connected mutually;
Pedestal is provided with two separated shoulder holes, is provided with conduction core print seat, first insulating case and one second insulating case in each shoulder hole;
Shoulder hole comprises big hole and small sircle hole;
The conduction core print seat comprises first columnar portion, second columnar portion and the shaft shoulder portion between first columnar portion and second columnar portion;
First insulating case comprises first cylindrical portion and first annular end, first annular end is positioned at an end of first cylindrical portion and along the protrusion radially outward of first cylindrical portion, first cylindrical portion is passed from small sircle hole and along circumferentially coating first columnar portion, first annular end is arranged in big hole;
Second insulating case is fixedly mounted in the big hole and the edge circumferentially coats second columnar portion and shaft shoulder portion;
First columnar portion is provided with a containing hole that is used for ccontaining conduction mandrel, and described two conduction mandrels are inserted into respectively when described loam cake is installed on the pedestal in two containing holes and with the inwall of containing hole and contact.
Further, described containing hole is a blind hole, the opening of containing hole is positioned at the end away from shaft shoulder portion of first columnar portion, first insulating case also comprises second annular end, second annular end be positioned at first cylindrical portion the other end and along first cylindrical portion radially to projecting inward, second annular end covers the zone away from the containing hole open circumferential of the end of shaft shoulder portion of first columnar portion, and described two conduction mandrels pass two second annular end respectively and are inserted in two containing holes when described loam cake is installed on the pedestal.
Further, the sidewall of each big hole is provided with two relative hole clippings; Second insulating case comprises second cylindrical portion, be positioned at the ccontaining end of ring-type of second cylindrical portion, one end and two legs that axially stretch out to the second cylindrical portion place direction from the ccontaining end of ring-type along second cylindrical portion, the end of each leg be provided with one along the radially outward outstanding of second cylindrical portion and with corresponding first jut of hole clipping; Second cylindrical portion is from circumferential coating second columnar portion, and the ccontaining end of ring-type is from circumferential coating shaft shoulder portion; Two first juts snap onto respectively in two hole clippings.
Further, described cut-off switch also comprises two first sealing rings and two second sealing rings, shoulder hole also comprises the transition face between big hole and small sircle hole, first sealing ring be set on first columnar portion and respectively with first annular end and shaft shoulder portion elasticity butt, second sealing ring be set on first cylindrical portion and respectively with first annular end and transition face elasticity butt.
Further, described first sealing ring and second sealing ring are O shape circle.
Further, described cut-off switch also comprises conductive plate, and two conduction mandrels are fixedly mounted on the conductive plate, and two conduction mandrels be arranged in parallel, and two containing holes be arranged in parallel; Loam cake comprises diapire and the U-shaped sidewall that links to each other with diapire, is being provided with a partition board portion outstanding in the U-shaped sidewall on the U-shaped inside surface of side wall, and partition board portion is provided with the U-shaped breach; Conductive plate is fixedly mounted between diapire and the partition board portion, and two conduction mandrels pass from the U-shaped breach.
Further, described cut-off switch also comprises a locating part, and described locating part comprises an arc and U-shaped support, and the mid portion of U-shaped support links to each other with arc, the other parts of U-shaped support are unsettled, and two free ends of U-shaped support respectively are provided with one second jut; Being provided with two relative cards on the edge of U-shaped breach lacks, the arc of locating part passes and extend into diapire from two cards lack and contacts, arc is than the openend of the more close U-shaped breach of conductive plate, and two second protruding parts are between diapire and partition board portion and be stuck on the partition board portion.
Further, the ladder barrel portion that described pedestal comprises into flat baseplate part and stretches out to the both sides of baseplate part from baseplate part, ladder barrel portion are two, and two shoulder holes are separately positioned in two ladder barrel portions.
A kind of shell also is provided the utility model and as the top mounting structure of cut-off switch as described in each, this mounting structure has better seal.
Shell of the present utility model and as the top mounting structure of cut-off switch as described in each, this cut-off switch also comprises one the 3rd sealing ring, described shell is provided with first opening, described baseplate part is fixedly mounted on the shell, the end towards first opening of two ladder barrel portions is passed first opening and is extend in the shell, the mounting groove that is provided with the annular corresponding on the surface of first opening at baseplate part with the shape of the 3rd sealing ring, the 3rd sealing ring is installed in the mounting groove and is looped around the periphery of first opening, the 3rd sealing ring and mounting groove and shell elasticity butt.
Further, described the 3rd sealing ring is O shape circle.
The beneficial effects of the utility model are: owing to adopted first insulating case and second insulating case, simplify the structure of conduction core print seat and pedestal, make the installation of conduction core print seat on pedestal more convenient.First insulating case and second insulating case are plastic parts, and externally effect is yielding down, possess the performance of certain free size error, have therefore reduced the requirement to conduction core print seat and base construction precision, have reduced cost.First insulating case and second insulating case can strengthen the insulating properties between conduction core print seat and the pedestal, and this cut-off switch is in being commonly used in the bigger circuit of operating current, and therefore the insulating properties that strengthens between conduction core print seat and the pedestal has bigger realistic function.The mounting structure of this shell and cut-off switch has better seal, and outside water or other liquid can not enter enclosure.
Description of drawings
Fig. 1 is the structural representation of the cut-off switch of a kind of execution mode of the utility model;
Fig. 2 is the structural representation of loam cake in a kind of execution mode of the utility model;
Fig. 3 is the structural representation of pedestal in a kind of execution mode of the utility model;
Fig. 4 is the structural representation of conduction mandrel and conductive plate in a kind of execution mode of the utility model;
Fig. 5 is the structural representation of conduction core print seat in a kind of execution mode of the utility model;
Fig. 6 is the structural representation of handle in a kind of execution mode of the utility model;
Fig. 7 is the structural representation of locating part in a kind of execution mode of the utility model;
Fig. 8 is the structural representation of second insulating case in a kind of execution mode of the utility model;
Fig. 9 is the structural representation of first insulating case in a kind of execution mode of the utility model;
Figure 10 is the structural representation of the cut-off switch of a kind of execution mode of the utility model;
Figure 11 is the sectional structure schematic diagram at A-A place among Figure 10;
Figure 12 is the structural representation of the cut-off switch of a kind of execution mode of the utility model;
Figure 13 is the sectional structure schematic diagram at B-B place among Figure 12;
Figure 14 is the structural representation of pedestal in a kind of execution mode of the utility model;
Figure 15 is the shell of a kind of execution mode of the utility model and the mounting structure schematic diagram of cut-off switch.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with drawings and the embodiments, the utility model is further elaborated.Should be appreciated that embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
As Fig. 1-shown in Figure 15, the cut-off switch of a kind of execution mode of the utility model, comprise: pedestal 1, can be installed to loam cake 2 on the pedestal 1, two and be installed on the loam cake 2 and the conduction mandrel 3 that is electrically connected mutually and two are installed on the pedestal 1 and the conduction core print seat 4 of mutually insulated, described two conduction mandrels 3 electrically contact with two conduction core print seats 4 respectively when described loam cake 2 is installed on the pedestal 1.
The ladder barrel portion 102 that pedestal 1 comprises into flat baseplate part 101 and stretches out to its both sides from baseplate part 101, ladder barrel portion 102 is two, be provided with a shoulder hole in each ladder barrel portion 102, shoulder hole comprises the transition face 105 between big hole 103, small sircle hole 104 and big hole 103 and the small sircle hole 104, and the sidewall of each big hole 103 is provided with two relative hole clippings 106.Two shoulder holes be arranged in parallel, i.e. their parallel axes.
Conduction core print seat 4 roughly becomes cylindrical, comprise first columnar portion 401, second columnar portion 402, flat portion 403 and the shaft shoulder portion 404 between first columnar portion 401 and second columnar portion 402, first columnar portion 401 is provided with and is used for the containing hole 405 of ccontaining conduction mandrel 3, containing hole 405 is a blind hole, and promptly containing hole 405 does not connect.
This cut-off switch also comprises two first insulating cases 5, two second insulating cases 6, two first sealing rings 9 and two second sealing rings 10.First sealing ring 9 and second sealing ring 10 are preferably O shape circle.First insulating case 5 comprises first annular end 501, first cylindrical portion 502 and second annular end 503, first annular end 501 is positioned at an end of first cylindrical portion 502 and along the protrusion radially outward of first cylindrical portion 502, second annular end 503 be positioned at first cylindrical portion 502 the other end and along first cylindrical portion 502 radially to projecting inward.Second insulating case 6 comprises second cylindrical portion 601, the ccontaining end 602 of ring-type and two legs 603 that axially stretch out from the ccontaining end 602 of ring-type along second cylindrical portion 601, the end of each leg 603 be provided with one along the radially outward outstanding of second cylindrical portion 601 and with a hole clipping 106 corresponding first juts 604.
A conduction core print seat 4, one first insulating case 5, one second insulating case 6, first sealing ring 9 and one second sealing ring 10 are installed in the shoulder hole.Concrete mounting structure between them is described below.First insulating case 5 and first sealing ring 9 all are set on first columnar portion 401 of conduction core print seat 4, first sealing ring 9 between first annular end 501 and shaft shoulder portion 404 and with first annular end 501 and shaft shoulder portion 404 elasticity butts, it is relative with containing hole 405 that second annular end 503 covers the end face and the cap hole 504 of first columnar portion 401, first cylindrical portion 502 of first insulating case 5 is arranged in small sircle hole 104, the first annular end 501 and is arranged in big hole 103.Second sealing ring 10 be set on first cylindrical portion 502 and respectively with first annular end 501 and transition face 105 elasticity butts, second annular end 503 is positioned at outside the small sircle hole 104.Second insulating case 6 is set in second columnar portion 402 and the shaft shoulder portion 404, and the ccontaining end 602 of ring-type is from circumferential coating shaft shoulder portion 404.First jut 604 that second insulating case 6 is arranged in 103, two legs 603 of big hole snaps onto respectively in two hole clippings 106, with this second insulating case 6 is fixed in the big hole 103.Flat portion 403 is positioned at outside the big hole 103.Promptly second annular end 503 and flat portion 403 stretch out from the two ends of shoulder hole respectively.
The effect of first insulating case 5 and second insulating case 6 is in order to simplify the structure of conduction core print seat 4 and pedestal 1, to make the installation of conduction core print seat 4 on pedestal 1 more convenient.First insulating case 5 and second insulating case 6 are plastic parts, and externally effect is yielding down, possess the performance of certain free size error, have therefore reduced the requirement to conduction core print seat 4 and pedestal 1 structure precision, have reduced cost.First insulating case 5 is provided with the end face that second annular end, 503, the second annular end 503 cover first columnar portion 401, and therefore, second annular end 503 can prevent that operating personnel from running into first columnar portion 401 because of carelessness, prevents to get an electric shock.In addition, first insulating case 5 and second insulating case 6 can strengthen the insulating properties between conduction core print seat 4 and the pedestal 1, the cut-off switch of present embodiment is to be used in the bigger circuit of operating current, therefore strengthens the insulating properties between conduction core print seat 4 and the pedestal 1 and can prevent to get an electric shock all to have bigger realistic function.
The effect of first sealing ring 9 is to prevent to flow to outside water or the gap of other liquid between first insulating case 5 and first columnar portion 401 in the conduction core print seat 4, and then flows out from second columnar portion 402.The effect of second sealing ring 10 is to prevent to flow in the big hole 103 outside water or the gap of other liquid between first insulating case 5 and small sircle hole 104, and flows out from big hole 103.
This cut-off switch also comprises an oblong conductive plate 11, a handle 7 and a locating part 8.Locating part 8 comprises an arc 801 and U-shaped support 802, and the mid portion of U-shaped support 802 links to each other with arc 801, and the other parts of U-shaped support 802 are unsettled, and two free ends of U-shaped support 802 are provided with two second card teats 803.7 one-tenth U-shapeds of handle, comprise a transverse arm 701 and two side arms 702 that are positioned at transverse arm 701 two ends, each side arm 702 is provided with the corresponding rotation hole 704 of one second depressed part 703 and and shaft 208, second depressed part 703 is between rotation hole 704 and transverse arm 701, two second depressed parts 703 lay respectively at two side arms 702 on the surface of handle 7 outsides, the end of two side arms 702 respectively is provided with one to the location division 705 of stretching out away from handle 7 directions, and rotation hole 704 is between the location division 705 and second depressed part 703.Described first snap-in structure comprises two second depressed parts 703 and two location divisions 705.
Two conduction mandrels 3 are fixedly mounted on the conductive plate 11, can adopt between two conduction mandrels 3 and the conductive plates 11 and weld or riveted way is fixedlyed connected, also can two conduction mandrels 3 are one-body molded with conductive plate 11, preferred fixedly connected in the present embodiment with riveted way.Two conduction mandrels 3 be arranged in parallel, i.e. their parallel axes.
In loam cake 2, conductive plate 11 extend in the space between diapire 201 and the partition board portion 203 conductive plate 11 and two conduction mandrel 3 as an integral installation, and two conduction mandrels 3 pass from U-shaped breach 204.The arc 801 of locating part 8 lacks in the space of passing and extending into 205 between diapire 201 and the partition board portion 203 from two cards, arc 801 contacts with the end of the open end of the close U-shaped breach 204 of conductive plate 11, stops conductive plate 11 to be deviate from from loam cake 2 with this.In two the second card spaces of teat 803 between diapire 201 and partition board portion 203 and be stuck on the partition board portion 203, stop locating part 8 from loam cake 2, to be deviate from this.
The end of each side arm 702 also be provided with one first indentation 706 and second indentation, 707, the first indentation 706 and second indentation 707 be positioned at side arm 702 on the surface of handle 7 inside.
Two shafts 208 are installed in respectively in two rotation holes 704, are matched in clearance between shaft 208 and the rotation hole 704, and promptly shaft 208 can relatively rotate hole 704 rotations, so handle 7 can rotate relative to loam cake 2.When handle 7 is positioned at the vertical position of diapire 201 with loam cake 2, two anti-transfer parts 209 contact with two side arms 702 respectively, simultaneously the 4th jut 210 is arranged in first indentation 706, stops handle 7 to rotate to the direction parallel with diapire 201 by said structure.When handle 7 from the vertical position of diapire 201 during to the rotated position parallel with diapire 201, handle 7 overcomes the obstruction of the 4th jut 210 by self strain, when handle 7 turns to the position parallel with diapire 201 (promptly with the vertical position of conduction mandrel 3 direction of insertion), two anti-transfer parts 209 contact with two side arms 702 respectively once more, the 5th jut 211 is arranged in second indentation 707 simultaneously, stops handle 7 to other rotated position by said structure.Therefore, when handle 7 is positioned at the position parallel with diapire 201 and is positioned at the position vertical with diapire 201, handle 7 can be fixed on above-mentioned two positions, when handle 7 rotated between above-mentioned two positions, handle 7 can produce strain to overcome the obstruction of the 4th jut 210 and the 5th jut 211.
Baseplate part 101 be formed with on the surface of conduction mandrel 3 direction of insertion one with the suitable continuous closed-wall 107 of U-shaped sidewall 202, when loam cake 2 is installed on the pedestal 1, U-shaped sidewall 202 is positioned within the continuous closed-wall 107, closed-wall 107 can make the installing and locating of loam cake 2 on pedestal 1 better continuously, reduces the possibility of rocking of loam cake 2 relative pedestals 1.On the surface of conduction mandrel 3 direction of insertion, also be formed with two pillars 108 at baseplate part 101, two pillars 108 are oppositely arranged and they are positioned at outside the continuous closed-wall 107, the end of two pillars 108 respectively is provided with 109, two the 3rd juts 109 of one the 3rd jut projection in opposite directions.On the surface of conduction mandrel 3 direction of insertion, also be formed with two second sidewalls 110 at baseplate part 101, two second sidewalls 110 are positioned at outside continuous closed-wall 107 and two pillars 108, two second sidewalls 110 link to each other with continuous closed-wall 107 respectively by two connecting plates 111, and each connecting plate 111 is formed with one against board 112 with corresponding second sidewall, 110 junctions.Described second snap-in structure comprises two against board 112, two pillars 108 and the 3rd juts 109.Second depressed part 703 is a triangle at the cross sectional shape of the direction vertical with the length direction of side arm 702, and described the 3rd jut 109 is the denation adaptive with the shape of second depressed part 703.
When loam cake 2 is installed on the pedestal 1 and handle 7 when being positioned at the position parallel with diapire 201, two location divisions 705 lay respectively at baseplate part 101 and two against between the board 112 and respectively with two against board 112 butts, simultaneously, two the 3rd juts 109 snap onto respectively in two second depressed parts 703.By location division 705 with against the butt of board 112, and the engaging of the 3rd jut 109 and second depressed part 703, handle 7 is fixed on the pedestal 1, owing to handle 7 links to each other with loam cake 2, so loam cake 2 also is fixed on the pedestal 1.When causing this cut-off switch vibration or shake because of external factor, loam cake 2 can not come off from pedestal 1, and therefore two conduction mandrels 3 can not deviate from from two containing holes 405, keeps firm electric contact between conduction mandrel 3 and the conduction core print seat 4.
Describe below loam cake 2 is installed to method on the pedestal 1.At first make handle 7 turn to the position vertical, two conduction mandrels 3 are alignd with two cap holes 504 respectively with diapire 201.Loam cake 2 and handle 7 are moved to pedestal 1, two conduction mandrels 3 are inserted into respectively in two containing holes 405, U-shaped sidewall 202 is extend within the continuous closed-wall 107, conduction mandrel 3 and main positioning action of having cooperated of containing hole 405, the auxiliary positioning action that cooperated of U-shaped sidewall 202 and continuous closed-wall 107.When loam cake 2 moves to U-shaped sidewall 202 when contacting with baseplate part 101, the installation of loam cake 2 on pedestal 1 puts in place.Handle 7 is rotated to the direction near arcwall face 206, when handle 7 turns to the position parallel with diapire 201, two location divisions 705 respectively with two against board 112 butts, simultaneously, two the 3rd juts 109 snap onto respectively in two second depressed parts 703, and promptly handle 7 and loam cake 2 are fixed on the pedestal 1.In handle 7 rotating process, handle 7 makes two pillars 108 produce strain, by strain the 3rd jut 109 is snapped in second depressed part 703, and after the 3rd jut 109 snapped in second depressed part 703, the strain of two pillars 108 was recovered.
When the installation of loam cake 2 on pedestal 1 do not arrive desired location (U-shaped sidewall 202 does not contact with baseplate part 101), handle 7 is rotated to the direction near arcwall face 206, when handle 7 turns to certain position, two location divisions 705 respectively with two against board 112 butts, can not move relative to pedestal 1 against board 112 owing to two, therefore continue in the close direction rotating process of arcwall face 206 at handle 7, the shaft 208 of 7 pairs of loam cakes 2 of handle produces active force, make loam cake 2 continue to move, until arriving desired location to desired location.Promptly when the installation of loam cake 2 on pedestal 1 do not arrive desired location, this cut-off switch had the characteristic that makes loam cake 2 arrive desired location automatically.
The method that loam cake 2 is taken off from pedestal 1 is described below.At first handle 7 is turned to the position vertical with diapire 201, certainly in handle 7 rotating process, need to overcome the effect of two the 3rd juts 109, even two pillars 108 produce strain, two the 3rd juts 109 are deviate from respectively from two second depressed parts 703.Then handle 7 is spurred to the direction away from pedestal 1, handle 7 and loam cake 2 are deviate from from pedestal 1.
The cut-off switch of present embodiment is used in the bigger circuit of those operating currents usually, such as in the electrokinetic cell circuit of electric automobile or hybrid vehicle, its effect is foregoing circuit to be disconnected or closure, and the two ends of foregoing circuit are connected with the flat portion 403 of two conduction core print seats 4 respectively.When loam cake 2 was installed on the pedestal 1, conduction mandrel 3 was electrically connected with conduction core print seat 4, because two conduction mandrels 3 are fixedly mounted on the conductive plate 11, promptly two conduction mandrels 3 are electric connections, so foregoing circuit is closed.When loam cake 2 by when pedestal 1 takes off, foregoing circuit disconnects.In addition, by top description as can be known, when loam cake 2 is installed on the pedestal 1, conduction mandrel 3 with conduct electricity between the core print seat 4 contact very firm, can not guarantee the steady operation of foregoing circuit because of the vibration of this cut-off switch or shake (such as vehicle jolt) disengage.When foregoing circuit breaks down the needs disconnection, can easily loam cake 2 be taken off from pedestal 1, foregoing circuit is disconnected.
In order to make operating personnel know better whether loam cake 2 is installed to (being whether foregoing circuit is closed) on the pedestal 1, this cut-off switch also comprises a sensitive switch 12, be formed with one on the outer surface of closed-wall 107 continuously protuberance 113 is installed, sensitive switch 12 is installed in by screw and installs on the protuberance 113.When handle 7 turns to the position parallel with diapire 201, the contact 12a butt of location division 705 and sensitive switch 12, sensitive switch 12 actions can show by the supervisory circuit that links to each other with sensitive switch 12 whether loam cake 2 is installed on the pedestal 1.The concrete composition and the structure of supervisory circuit are prior aries, no longer explanation herein.
The cut-off switch of present embodiment is installed in the occasion that needs waterproof sealing usually, such as is installed on the shell of vehicle power power brick, and shell needs waterproof sealing.Shell with the electrokinetic cell bag is that example illustrates concrete mounting structure below.
Baseplate part 101 squarely tabulars comprise the two sides, and the side with continuous closed-wall 107 places of baseplate part 101 in the present embodiment is called first, and another side is called second.Four edges at baseplate part 101 offer four installing holes 114.Offer corresponding with four installing holes 114 respectively screwed hole of one first opening 14a and four on the shell 14, baseplate part 101 is installed on the shell 14, and four screws are respectively installed in each installing hole 114 and the respective threads hole.Second the part that is positioned at baseplate part 101 of this cut-off switch is passed the first opening 14a and is extend into shell 14 inside.Second face at baseplate part 101 is provided with a mounting groove 115, this cut-off switch also comprises one the 3rd sealing ring 15, the 3rd sealing ring 15 is installed in the mounting groove 115,15 whiles and shell 14 elasticity butts of the 3rd sealing ring, with the junction of this can 14, prevent that outside water or other liquid from entering shell 14 inside from this junction with pedestal 1.First sealing ring 9, second sealing ring 10 and the 3rd sealing ring 15 are formed a complete sealing system, and outside water or other liquid can not enter shell 14 inside from this cut-off switch and with the installation place of shell 14, have guaranteed the sealing of shell 14 inside.
The above only is a better embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (10)
1. a cut-off switch is characterized in that, comprising: pedestal, can be installed to loam cake on the pedestal and two and be installed in the loam cake and the conduction mandrel that is electrically connected mutually;
Pedestal is provided with two separated shoulder holes, is provided with conduction core print seat, first insulating case and one second insulating case in each shoulder hole;
Shoulder hole comprises big hole and small sircle hole;
The conduction core print seat comprises first columnar portion, second columnar portion and the shaft shoulder portion between first columnar portion and second columnar portion;
First insulating case comprises first cylindrical portion and first annular end, first annular end is positioned at an end of first cylindrical portion and along the protrusion radially outward of first cylindrical portion, first cylindrical portion is passed from small sircle hole and along circumferentially coating first columnar portion, first annular end is arranged in big hole;
Second insulating case is fixedly mounted in the big hole and the edge circumferentially coats second columnar portion and shaft shoulder portion;
First columnar portion is provided with a containing hole that is used for ccontaining conduction mandrel, and described two conduction mandrels are inserted into respectively when described loam cake is installed on the pedestal in two containing holes and with the inwall of containing hole and contact.
2. cut-off switch as claimed in claim 1, it is characterized in that, described containing hole is a blind hole, the opening of containing hole is positioned at the end away from shaft shoulder portion of first columnar portion, first insulating case also comprises second annular end, second annular end be positioned at first cylindrical portion the other end and along first cylindrical portion radially to projecting inward, second annular end covers the zone away from the containing hole open circumferential of the end of shaft shoulder portion of first columnar portion, and described two conduction mandrels pass two second annular end respectively and are inserted in two containing holes when described loam cake is installed on the pedestal.
3. cut-off switch as claimed in claim 1 is characterized in that, the sidewall of each big hole is provided with two relative hole clippings; Second insulating case comprises second cylindrical portion, be positioned at the ccontaining end of ring-type of second cylindrical portion, one end and two legs that axially stretch out to the second cylindrical portion place direction from the ccontaining end of ring-type along second cylindrical portion, the end of each leg be provided with one along the radially outward outstanding of second cylindrical portion and with corresponding first jut of hole clipping; Second cylindrical portion is from circumferential coating second columnar portion, and the ccontaining end of ring-type is from circumferential coating shaft shoulder portion; Two first juts snap onto respectively in two hole clippings.
4. cut-off switch as claimed in claim 1, it is characterized in that, described cut-off switch also comprises two first sealing rings and two second sealing rings, shoulder hole also comprises the transition face between big hole and small sircle hole, first sealing ring be set on first columnar portion and respectively with first annular end and shaft shoulder portion elasticity butt, second sealing ring be set on first cylindrical portion and respectively with first annular end and transition face elasticity butt.
5. cut-off switch as claimed in claim 4 is characterized in that, described first sealing ring and second sealing ring are O shape circle.
6. cut-off switch as claimed in claim 1 is characterized in that described cut-off switch also comprises conductive plate, and two conduction mandrels are fixedly mounted on the conductive plate, and two conduction mandrels be arranged in parallel, and two containing holes be arranged in parallel; Loam cake comprises diapire and the U-shaped sidewall that links to each other with diapire, is being provided with a partition board portion outstanding in the U-shaped sidewall on the U-shaped inside surface of side wall, and partition board portion is provided with the U-shaped breach; Conductive plate is fixedly mounted between diapire and the partition board portion, and two conduction mandrels pass from the U-shaped breach.
7. cut-off switch as claimed in claim 6, it is characterized in that, described cut-off switch also comprises a locating part, described locating part comprises an arc and U-shaped support, the mid portion of U-shaped support links to each other with arc, the other parts of U-shaped support are unsettled, and two free ends of U-shaped support respectively are provided with one second jut; Being provided with two relative cards on the edge of U-shaped breach lacks, the arc of locating part passes and extend into diapire from two cards lack and contacts, arc is than the openend of the more close U-shaped breach of conductive plate, and two second protruding parts are between diapire and partition board portion and be stuck on the partition board portion.
8. as each described cut-off switch among the claim 1-7, it is characterized in that, the ladder barrel portion that described pedestal comprises into flat baseplate part and stretches out to the both sides of baseplate part from baseplate part, ladder barrel portion are two, and two shoulder holes are separately positioned in two ladder barrel portions.
9. a shell and as the mounting structure of cut-off switch as described in the claim 8, it is characterized in that, this cut-off switch also comprises one the 3rd sealing ring, described shell is provided with first opening, described baseplate part is fixedly mounted on the shell, the end towards first opening of two ladder barrel portions is passed first opening and is extend in the shell, the mounting groove that is provided with the annular corresponding on the surface of first opening at baseplate part with the shape of the 3rd sealing ring, the 3rd sealing ring is installed in the mounting groove and is looped around the periphery of first opening, the 3rd sealing ring and mounting groove and shell elasticity butt.
10. mounting structure as claimed in claim 9 is characterized in that, described the 3rd sealing ring is O shape circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206401417U CN201893254U (en) | 2010-11-30 | 2010-11-30 | Power-off switch and installation structure of power-off switch and shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206401417U CN201893254U (en) | 2010-11-30 | 2010-11-30 | Power-off switch and installation structure of power-off switch and shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201893254U true CN201893254U (en) | 2011-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206401417U Expired - Lifetime CN201893254U (en) | 2010-11-30 | 2010-11-30 | Power-off switch and installation structure of power-off switch and shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201893254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336546A (en) * | 2014-07-25 | 2016-02-17 | 比亚迪股份有限公司 | Power-off switch for electric vehicle and electric vehicle with power-off switch |
-
2010
- 2010-11-30 CN CN2010206401417U patent/CN201893254U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105336546A (en) * | 2014-07-25 | 2016-02-17 | 比亚迪股份有限公司 | Power-off switch for electric vehicle and electric vehicle with power-off switch |
| CN105336546B (en) * | 2014-07-25 | 2019-01-29 | 比亚迪股份有限公司 | Cut-off switch for electric vehicle and the electric vehicle with it |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110706 |
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| CX01 | Expiry of patent term |