CN103311061B - Power-off protection apparatus - Google Patents
Power-off protection apparatus Download PDFInfo
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- CN103311061B CN103311061B CN201210059854.8A CN201210059854A CN103311061B CN 103311061 B CN103311061 B CN 103311061B CN 201210059854 A CN201210059854 A CN 201210059854A CN 103311061 B CN103311061 B CN 103311061B
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- shaped trough
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Abstract
A kind of power-off protection apparatus, comprise pedestal, pedestal is provided with support and six fixed touching plates, one end of support is connected with back-moving spring, the other end is connected with guide pillar, support is provided with three movable contact springs running through support both sides, six fixed touching plates are divided into the both sides that two row are symmetricly set in support between two, each movable contact spring respectively with two end in contact of two fixed touching plates, the other end of six fixed touching plates is connected with external circuit respectively, three connection jaws are respectively formed about making pedestal, wherein two connection jaws are connected with normal power source, an other connection jaws is connected with emergency power supply, when explosion-proof lamp is uncapped, drive guide pillar that support opposite base is moved by the link gear of lamp interior, back-moving spring is compressed, support moves, contact between movable contact spring and fixed touching plate is disconnected, thus disconnect civil power and emergency power supply, protect the personal safety of maintenance personal, the fail safe of this power-off protection apparatus is higher.
Description
[technical field]
The present invention relates to explosion-proof light technical field, particularly relate to a kind of power-off protection apparatus.
[background technology]
Current most explosion-proof lamp does not all have uncovering power-off operator guards, when light fixture does not work, if maintenance personal forgets turn off power supply, then there is serious potential safety hazard during maintenance.Part light fixture is furnished with two uncovering power-off protective devices; if but when light fixture is emergency type light fixture, two bit-type power-off protection apparatus can only disconnect civil power, cannot disconnect the power supply of emergency circuit; also there is the voltage that can injure worker safety between emergent like this fluorescent tube, still there is potential safety hazard.
[summary of the invention]
Based on this, be necessary the power-off protection apparatus providing a kind of fail safe higher.
A kind of power-off protection apparatus, comprising:
Pedestal, the first square groove that middle part offers bar-shaped trough and is communicated with described bar-shaped trough;
Support, is movably set in described bar-shaped trough;
Back-moving spring, be arranged in described first square groove, one end of described back-moving spring is connected with described support, and the other end abuts with the cell wall of described first square groove;
Six fixed touching plates, are arranged on described pedestal, and described six fixed touching plates are divided into two row and symmetry is positioned at the both sides of described support between two, and three fixed touching plates being positioned at described support side are respectively used to be connected with normal power source and emergency power supply;
Three movable contact springs, are arranged on described support, and the two ends of described each movable contact spring are stretched out from the both sides of described support respectively, and the two ends of each movable contact spring are corresponding with two fixed touching plates being positioned at the described support left and right sides respectively;
Guide pillar, wears the bottom of described pedestal and is connected with the other end of described support, by driving described guide pillar to make the relatively described pedestal of described support reciprocate, makes each movable contact spring and two fixed touching plates corresponding with described movable contact spring be separated or contact.
Further, described pedestal comprises Base body and is convexly equipped in the protuberance in described Base body, described bar-shaped trough runs through described Base body and described protuberance, described first square groove is opened in the middle part of described protuberance and is communicated with described bar-shaped trough, the bottom of described Base body is provided with annular projection, and described guide pillar wears described annular projection and is connected with the other end of described support.
Further, described support comprises the framework offering three through holes from top to bottom and the fixed lever being arranged at described frame roof, described framework is contained in described bar-shaped trough, described fixed lever puts in described first square groove from described bar-shaped trough, one end of described back-moving spring is sheathed on described fixed lever and end and abuts with described framework, and the cell wall of the other end and described first square groove abuts against.
Further, described Base body also offers six the second square grooves, described six the second square grooves are divided into two row and are opened in the both sides of described bar-shaped trough between two symmetrically, and described six the second square grooves are communicated with described bar-shaped trough respectively, described movable contact spring passes described through hole and two ends are contained in the second square groove of described bar-shaped trough both sides respectively.
Further, also comprise the fastening spring be arranged in described through hole, the hole wall of described through hole is provided with boss, the middle part of described movable contact spring forms projection, one end of described fastening spring to be sheathed on described boss and to abut with the hole wall of described through hole, and the other end to be sheathed in described projection and to abut with described movable contact spring and be fixed on described support by described movable contact spring.
Further, described pedestal also offers six fixed touching plate accepting grooves, described six fixed touching plate accepting grooves are divided into two row and symmetry is positioned at the both sides of described bar-shaped trough between two, the fixed touching plate accepting groove of described bar-shaped trough both sides respectively with the second square groove one_to_one corresponding of described bar-shaped trough both sides, described fixed touching plate comprises the first contact site, second contact site and simultaneously connect the middle interconnecting piece of described first contact site and the second contact site, described first contact site is connected with outer lead, one end of described second contact site is contained in described fixed touching plate accepting groove, the other end to put in described second square groove and contacts with described movable contact spring, described middle interconnecting piece is partially housed in described fixed touching plate accepting groove.
Further, the two ends of described movable contact spring are respectively arranged with moving contact, and the end of described second contact site is provided with determines contact, and described movable contact spring and fixed touching plate are by described moving contact and determine contact.
Further; described pedestal also offers six junction block accepting grooves; described six junction block accepting grooves become two row and symmetry is opened in the both sides of described bar-shaped trough between two; the junction block accepting groove of described support both sides respectively with the fixed touching plate accepting groove one_to_one corresponding of described support both sides, described power-off protection apparatus also comprises six junction blocks be arranged at respectively in described six junction block accepting grooves.
Further, the bottom land of described six junction block accepting grooves offers the first wiring hole respectively, the bottom of described junction block offers the second wiring hole, described first contact site is contained in described junction block accepting groove and forms wire grasping part with described junction block, and offer the 3rd wiring hole in the middle part of described first contact site, described first wiring hole, second wiring hole is communicated with the 3rd wiring hole, two sides that described pedestal is relative offer three wiring holes respectively, described three wiring holes are communicated with described six junction block accepting grooves respectively, wire passes described wiring hole and is held on described wire grasping part.
Further, described power-off protection apparatus also comprises and to be arranged in the middle part of described pedestal and the seal cover sealing described first square groove and bar-shaped trough and the embedding glue-line be covered on described seal cover.
The pedestal of above-mentioned power-off protection apparatus is provided with support and six fixed touching plates, one end of support is connected with back-moving spring, the other end is connected with guide pillar, support is provided with three movable contact springs running through support both sides, six fixed touching plates are divided into the both sides that two row are symmetricly set in support between two, each movable contact spring respectively with two end in contact of two fixed touching plates, the other end of six fixed touching plates is connected with external circuit respectively, three connection jaws are respectively formed about making pedestal, wherein two connection jaws are connected with normal power source, an other connection jaws is connected with emergency power supply, when explosion-proof lamp is uncapped, drive guide pillar that support opposite base is moved by the link gear of lamp interior, back-moving spring is compressed, support moves, contact between movable contact spring and fixed touching plate is disconnected, thus disconnect civil power and emergency power supply, protect the personal safety of maintenance personal, the fail safe of this power-off protection apparatus is higher.
[accompanying drawing explanation]
Fig. 1 is the front view of the power-off protection apparatus of an execution mode;
Fig. 2 is the cutaway view along II-II line in Fig. 1;
Fig. 3 is the schematic perspective view of the pedestal shown in Fig. 1;
Fig. 4 is the front view of the pedestal shown in Fig. 3;
Fig. 5 is the schematic perspective view of another angle of the pedestal shown in Fig. 1;
Fig. 6 is the rearview of the power-off protection apparatus shown in Fig. 1;
Fig. 7 is the left view of the power-off protection apparatus shown in Fig. 1;
Fig. 8 is the schematic perspective view of the support shown in Fig. 2;
Fig. 9 A is the cutaway view of the movable contact spring shown in Fig. 2;
Fig. 9 B is the vertical view of the movable contact spring shown in Fig. 2;
Figure 10 is the schematic perspective view of the junction block shown in Fig. 1;
Figure 11 A eliminates the schematic perspective view after determining contact for the fixed touching plate shown in Fig. 1;
Figure 11 B is the fixed touching plate front view shown in Fig. 1;
Figure 11 C is the fixed touching plate vertical view shown in Fig. 1;
Figure 12 is the schematic perspective view of the guide pillar shown in Fig. 1;
Figure 13 removes the front view after seal cover and guide pillar for the power-off protection apparatus shown in Fig. 1.
[embodiment]
In order to solve the safety problem of existing explosion-proof lamp, propose the power-off protection apparatus that a kind of fail safe is higher.Set forth further below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2; the power-off protection apparatus 100 of one execution mode, comprises pedestal 10, support 20, back-moving spring 30, three movable contact springs 40, fastening spring 50, six junction blocks 60, six fixed touching plates 70, guide pillar 80, seal cover 90 and embedding glue-lines 110.
Please refer to Fig. 3 and Fig. 4, pedestal 10 is for other assemblies such as carrying bracket 20 grade.Pedestal 10 adopts insulating material injection mo(u)lding, with other component insulations with power-off protection apparatus 100, makes power-off protection apparatus 100 safe and reliable.
Pedestal 10 comprises the Base body 12 be roughly square and the protuberance 14 be convexly equipped in Base body 12.The middle part of pedestal 10 offers bar-shaped trough 16, and bar-shaped trough 16 runs through Base body 12 and protuberance 14.Protuberance 14 offers the first square groove 142, first square groove 142 to be communicated with bar-shaped trough 16.Support 20 is movably set in bar-shaped trough 16.
Base body 12 offers six the second square grooves, 121, six the second square grooves 121 and be divided into two row and symmetrical both sides being opened in bar-shaped trough 16 between two.Six the second square grooves 121 are communicated with bar-shaped trough 16 respectively.
Base body 12 also offers six fixed touching plate accepting grooves 122, six fixed touching plate accepting grooves 122 are divided into two row and symmetrical both sides being opened in bar-shaped trough 16 between two, wherein three fixed touching plate accepting grooves 122 lay respectively at three the second square grooves 121 on the left of bar-shaped trough 16 left side and respectively with three the second square groove 121 one_to_one corresponding, other three fixed touching plate accepting groove 122 symmetries are positioned at the right side of three the second square grooves 121 on the right side of bar-shaped trough 16, and respectively with three square groove 121 one_to_one corresponding.
A fixed touching plate accepting groove 122 is adjacent with second square groove 121.Interval first spacer portion 123 between each fixed touching plate accepting groove 122 and the second square groove 121.The co-planar at the openend place of bar-shaped trough 16 openend place plane and six the second square grooves 121, and the plane at the openend place of bar-shaped trough 16 openend place plane or six the second square grooves 121 is lower than the plane at place, pedestal 10 both sides, make the height side, end face side of the first spacer portion 123 low.The end face of the first spacer portion 123 offers the first holddown groove 1232 and the second holddown groove 1234 be connected.The plane at the openend place of the first holddown groove 1232 is higher than the plane at the openend place of the second holddown groove 1234, and the plane at the bottom land place of the first holddown groove 1232 is also higher than the plane at the bottom land place of the second holddown groove 1234.
Further, Base body 12 also offers six junction block accepting grooves 124, six junction block accepting grooves 124 are divided into two row and symmetrical both sides being opened in bar-shaped trough 16 between two, wherein three junction block accepting grooves 124 be positioned at three fixed touching plate accepting grooves 122 on the left of bar-shaped trough 16 left side and respectively with three fixed touching plate accepting groove 121 one_to_one corresponding, other three junction block accepting grooves 124 be positioned at three fixed touching plate accepting grooves 122 on the right side of bar-shaped trough 16 right side and with three fixed touching plate accepting groove one_to_one corresponding.The bottom land of junction block accepting groove 124 offers the first wiring hole 1242.Two relative cell walls of junction block accepting groove 124 are respectively arranged with the first brace table 1244 and the second brace table 1246.
A fixed touching plate accepting groove 122 is adjacent with a junction block accepting groove 124.Between each fixed touching plate accepting groove 122 and junction block accepting groove 124, interval second spacer portion 125, second offers the 3rd holddown groove 1252 in portion 125.
Please refer to Fig. 5 and Fig. 6, the bottom surface of Base body 12 also offers four square grooves 126 and two square grooves 127.Four square grooves 126 are relative with the position of four junction block accepting grooves 124 respectively, and two square grooves 127 are relative with two other junction block accepting groove 124 respectively.Four square grooves 126 are communicated with by the first wiring hole 1242 with six junction block accepting grooves 124 respectively with two square grooves 127.Offer four square grooves 126 and two square grooves 127 are conducive to, when pedestal 10 is prepared in injection moulding, can reducing material usage, thus the cost of the power-off protection apparatus 100 reduced.
Please refer to Fig. 5 and Fig. 7, further, the side of the left and right sides in Base body 12 also offers respectively three square wiring holes 128.Three wiring holes 128 of left surface are communicated with three junction block accepting grooves 124 in left side respectively, and three wiring holes 128 of right flank are communicated with three junction block accepting grooves 124 on right side respectively.When using power-off protection apparatus 100, outer lead is connected with power-off protection apparatus 100 through wiring hole 128.Be appreciated that in other embodiments, also can not offer wiring hole 128, adopt the mode of the bottom threading from Base body 12 to realize conducting.
The bottom of Base body 12 also offers circular hole (not shown).The bottom of Base body 12 is also provided with annular projection 129.The through hole 1292 at the middle part of annular projection 129 is communicated with circular hole.Annular projection 129 is for supporting cell guide 80.
Refer to Fig. 8, support 20 comprises the framework 22 of strip and is arranged at the fixed lever 24 at framework 22 top.Framework 22 offers three through holes 222 from top to bottom.The hole roof of through hole 222 is provided with the boss 224 being roughly truncated cone-shaped.Support 20 is for carrying movable contact spring 30 and driving movable contact spring 40 to move up and down.Be appreciated that support 20 also adopts insulating material to make, prevent power-off protection apparatus 100 short circuit occurred inside, improve the fail safe of power-off protection apparatus 100.
Please again consult Fig. 2, back-moving spring 30 is arranged in the first square groove 142.Back-moving spring 30 is cylindrical helical spring.One end of back-moving spring 30 is sheathed on fixed lever 24 and end and abuts with the top of framework 22, and the other end abuts with the cell wall of the first square groove 142.The effect of back-moving spring 30 makes support 20 move up and down by opposite base 10.
Please refer to Fig. 9 A and Fig. 9 B, movable contact spring 40 is the large laminated structure in middle little two.The intermediate recess of movable contact spring 40 forms protruding 42.The two ends of movable contact spring 40 are respectively arranged with moving contact 44.In present embodiment, moving contact 44 is arranged at the two ends of movable contact spring 40 by the mode of riveted joint.Be appreciated that in other embodiments, also can by the mode of welding by fixing for moving contact 44 two ends with movable contact spring 40.But the mode of riveted joint is comparatively firm.In present embodiment, moving contact 44 is made of copper, and makes the electric conductivity of movable contact spring 10 higher.
Refer to Fig. 2, three movable contact springs 40 are each passed through three through holes 222, and are arranged on the hole wall relative with boss 224.Projection 42 is relative with boss 224.
The quantity of fastening spring 50 is three, is arranged at respectively in three through holes 222.Fastening spring 50 is also cylindrical helical spring.One end of fastening spring 50 is socketed on boss 224 and end and abuts with the hole wall of through hole 222, the other end is socketed on protruding 42 and end abuts with movable contact spring 40 and is fixed on support 20 by movable contact spring 40, when support 20 opposite base 10 is moved up and down, movable contact spring 40 is driven to move up and down.
Refer to Figure 10, junction block 60 is roughly U-board, and the bottom of junction block 60 offers the second wiring hole 62.Junction block 60 is for connecting external circuit and power-off protection apparatus 100.In present embodiment, junction block 60 is also made of copper.
Please refer to Figure 11 A, Figure 11 B and Figure 11 C, fixed touching plate 70 comprises the first contact site 72, second contact site 74 and middle interconnecting piece 76.First contact site 72 is for connecting external circuit.Second contact site 74 is for contacting with movable contact spring 40.First contact site 72 is laminated structure, and middle part offers the 3rd wiring hole 722.Second contact site 74 is roughly the laminated structure of P shape, and its stub end is provided with determines contact 742.In present embodiment, determine contact 742 and also adopt copper rod to be made by the mode of riveted joint.Middle interconnecting piece 76 is roughly the vertical U-shaped structure connecting the first contact site 72 and the second contact site 74 simultaneously, comprises the first linking arm 762, second linking arm 764 and the arc linking arm 766 being simultaneously connected the first linking arm 762 and the second linking arm 764.First linking arm 762 is connected with the first contact site 72 is vertical, and the second linking arm 764 is connected with the second contact site 74 is vertical.In present embodiment, fixed touching plate 70 is also made of copper.
Refer to Figure 12, guide pillar 80 comprises roughly cylindrical connecting rod 82 and is positioned at the contact head 84 of connecting rod 82 one end.
Please again consult Fig. 1; seal cover 90 to be arranged in the middle part of pedestal 10 and to be positioned at above the first square groove 142 and bar-shaped trough 16 and to seal the first square groove 142 and bar-shaped trough 16; thus sealed support 20, movable contact spring 40 and movable contact spring 40 and the contact portion of fixed touching plate 70, play the effect of protection and isolation.
Please again consult Fig. 2, casting glue glue-line 110 is covered on seal cover 90, for fixing seal lid 90 to pedestal 10.Concrete, casting glue glue-line 110 can be epoxy resin embedding adhesive layer, encapsulating polyurethane glue-line, organic silicon potting adhesive layer or ultra-violet curing acrylic resin embedding glue-line etc.
Please refer to Fig. 2, Fig. 3 and Figure 13; when assembling power-off protection apparatus 100; first be positioned over respectively by three movable contact springs 40 on three through holes 222 on support 20, movable contact spring 40 is positioned on the hole wall relative with boss 224 of through hole 222, and projection 42 is relative with boss 224.Again fastening spring 50 is put on through hole 222, makes one end of fastening spring 50 be sheathed on protruding 42 and end abuts with movable contact spring 40, the other end be sheathed on boss 224 and end and abut with the hole wall of through hole 222 and fix movable contact spring 40.Then, after on the fixed lever 24 one end of back-moving spring 30 being socketed in support 20, support 20 is put into bar-shaped trough 16, the fixed lever 24 of support 20 stretches in the first square groove 142, and the other end of back-moving spring 30 abuts with the cell wall of the first square groove 142.The two ends that movable contact spring 40 stretches out through hole 222 are contained in the second square groove 121 of support 20 left and right sides respectively.Further, guide pillar 80 simultaneously through abutting with the bottom of support 20 in the through hole 1292 in the middle part of annular projection 129 and the circular hole bottom pedestal 10.Again then, six junction blocks 60 are positioned in junction block accepting groove 124 respectively, respectively six fixed touching plates 70 are installed again, wherein the first contact site 72 of fixed touching plate 70 to be contained in junction block accepting groove 124 and the top being positioned at junction block 60 makes the first contact site 72 and junction block 60 form wire grasping part (not shown), the two ends of the first contact site 72 are supported by the first brace table 1244 and the second brace table 1246 respectively, and one end of being supported by the first brace table 1244 of the first contact site 72 cell wall relative with two of junction block accepting groove 124 abuts.First wiring hole 1242, second wiring hole 62 is communicated with the 3rd wiring hole 722.Please refer to Figure 11 B, first linking arm 762 of middle interconnecting piece 76 is fitted with the cell wall of junction block accepting groove 124, second linking arm 764 stretches in fixed touching plate accepting groove 122, and arc linking arm 766 is erected in the second spacer portion 125, and is sticked in the 3rd holddown groove 1252.The small end of the second contact site 74 to be contained in fixed touching plate accepting groove 122 and to be sticked in the first holddown groove 1232, and large end is sticked in the second holddown groove 1234, and puts in the second square groove 121, determine moving contact 44 movable contact of contact 742 and movable contact spring 40.Finally, cover seal cover 90, and form embedding glue-line 110 with the whole seal cover 90 of casting glue embedding, seal cover 90 is fixed on pedestal 10 by embedding glue-line 110.Because the plane at the openend place of bar-shaped trough 16 openend place plane or six the second square grooves 121 is lower than the plane at place, pedestal 10 both sides; when covering seal cover 90; the end face of seal cover 90 can be made roughly concordant with the both sides of pedestal 10, be conducive to the volume reducing power-off protection apparatus 100.
Under normal circumstances, movable contact spring 40 and fixed touching plate 70 are in contact condition, make power-off protection apparatus 100 inside be in conducting state.In use, respectively wire passed the wiring hole 128 of pedestal 10 both sides and enter grasping part, and also compressing and wire is fixed in the wire grasping part junction block 60 and the first contact site 72 through the 3rd wiring hole 722, second wiring hole 62 and the first wiring hole 1242 with screw simultaneously.Wherein the wire of side is connected with external circuit, and the wire of opposite side is connected with lamp interior.
The pedestal 10 of power-off protection apparatus 100 is provided with support 20 and six fixed touching plates 70, one end of support 20 is connected with back-moving spring 30, the other end is connected with guide pillar 80, support 20 is provided with three movable contact springs 40 running through support 20 both sides, six fixed touching plates 70 are symmetricly set in the both sides of support 20 between two, each movable contact spring 40 respectively with the two ends movable contact of two fixed touching plates 70, the other end of six fixed touching plates 70 is connected with external circuit respectively, pedestal about 10 is made respectively to be formed with three connection jaws, wherein two connection jaws are connected with normal power source, an other connection jaws is connected with emergency power supply, when explosion-proof lamp is uncapped, by the link gear pressing guide pillar 80 of lamp interior, back-moving spring 30 is compressed, support 20 moves, movable contact spring 40 is separated with fixed touching plate 70, thus disconnect civil power and emergency power supply, protect the personal safety of maintenance personal, the fail safe of this power-off protection apparatus is higher.During closing lid, unclamp guide pillar 70, back-moving spring 30 reset drives pillar 20 moves down, and movable contact spring 40 contacts again with fixed touching plate 70, the inner conducting of power-off protection apparatus 100.
Be appreciated that in other embodiments, junction block 60 can omit, and is connected and can realizes conducting by wire with the first contact site 72 of fixed touching plate 70.Junction block 60 is be made up of the metallic copper that conductivity is high, and the first contact site 72 is also made of copper, and wire clamp is held in the wire grasping part that the high junction block of conductivity 60 and the first contact site 72 formed, can improves electrically connected reliability.
In present embodiment, embedding glue-line 110 is covered on above seal cover 90 on fixing seal lid 90 to pedestal 10, thus isolation mount 20, movable contact spring 40 and movable contact spring 40 and the contact portion of fixed touching plate 70, play the effect of flame proof.
Please again consult Fig. 2, guide pillar 80 wears the bottom of pedestal 10, and is supported by annular protruding 129, and arc-shaped convex 129 increases the area of explosion-insulation surface, improves the explosion insulation performance of power-off protection apparatus 100.The setting of seal cover 90, embedding glue-line 110 and annular projection 129; make power-off protection apparatus 100 meet GB3836.2-2010 " flame-proof type " standard-required, no matter opening and closing, all can not produce spark to external world; the hazardous area of flame proof requirement can be applied to, safe and reliable.
It should be noted that, in other embodiments, when power-off protection apparatus 100 is not for having a hazardous area of flame proof requirement, seal cover 90 and embedding glue-line 110 can omit.
Being appreciated that the quantity of fixed touching plate is also not limited to six, can be eight or more; The quantity of movable contact spring also can correspondingly increase.
Be appreciated that power-off protection apparatus 100 also may be used for other electric equipments, and be not only applied to explosion-proof lamp.
The above embodiment only have expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.
Claims (10)
1. a power-off protection apparatus, is characterized in that, comprising:
Pedestal, the first square groove that middle part offers bar-shaped trough and is communicated with described bar-shaped trough;
Support, is movably set in described bar-shaped trough;
Back-moving spring, be arranged in described first square groove, one end of described back-moving spring is connected with described support, and the other end abuts with the cell wall of described first square groove;
Six fixed touching plates, are arranged on described pedestal, and described six fixed touching plates are divided into two row and symmetry is positioned at the both sides of described support between two, and three fixed touching plates being positioned at described support side are respectively used to be connected with normal power source and emergency power supply;
Three movable contact springs, are arranged on described support, and the two ends of each described movable contact spring are stretched out from the both sides of described support respectively, and the two ends of each described movable contact spring are corresponding with two fixed touching plates being positioned at the described support left and right sides respectively;
Guide pillar, wears the bottom of described pedestal and is connected with the other end of described support, by driving described guide pillar to make the relatively described pedestal of described support reciprocate, makes each movable contact spring and two fixed touching plates corresponding with described movable contact spring be separated or contact.
2. power-off protection apparatus according to claim 1; it is characterized in that; described pedestal comprises Base body and is convexly equipped in the protuberance in described Base body; described bar-shaped trough runs through described Base body and described protuberance; described first square groove is opened in the middle part of described protuberance and is communicated with described bar-shaped trough; the bottom of described Base body is provided with annular projection, and described guide pillar wears described annular projection and is connected with the other end of described support.
3. power-off protection apparatus according to claim 2; it is characterized in that; described support comprises the framework offering three through holes from top to bottom and the fixed lever being arranged at described frame roof; described framework is contained in described bar-shaped trough; described fixed lever puts in described first square groove from described bar-shaped trough; one end of described back-moving spring is sheathed on described fixed lever and end and abuts with described framework, and the cell wall of the other end and described first square groove abuts against.
4. power-off protection apparatus according to claim 3; it is characterized in that; described Base body also offers six the second square grooves; described six the second square grooves are divided into two row and are opened in the both sides of described bar-shaped trough between two symmetrically; and described six the second square grooves are communicated with described bar-shaped trough respectively, described movable contact spring passes described through hole and two ends are contained in the second square groove of described bar-shaped trough both sides respectively.
5. power-off protection apparatus according to claim 4; it is characterized in that; also comprise the fastening spring be arranged in described through hole; the hole wall of described through hole is provided with boss; the middle part of described movable contact spring forms projection; one end of described fastening spring to be sheathed on described boss and to abut with the hole wall of described through hole, and the other end to be sheathed in the projection in the middle part of described movable contact spring and to abut with described movable contact spring and be fixed on described support by described movable contact spring.
6. power-off protection apparatus according to claim 5, it is characterized in that, described pedestal also offers six fixed touching plate accepting grooves, described six fixed touching plate accepting grooves are divided into two row and symmetry is positioned at the both sides of described bar-shaped trough between two, the fixed touching plate accepting groove of described bar-shaped trough both sides respectively with the second square groove one_to_one corresponding of described bar-shaped trough both sides, described fixed touching plate comprises the first contact site, second contact site and simultaneously connect the middle interconnecting piece of described first contact site and the second contact site, described first contact site is connected with outer lead, one end of described second contact site is contained in described fixed touching plate accepting groove, the other end to put in described second square groove and contacts with described movable contact spring, described middle interconnecting piece is partially housed in described fixed touching plate accepting groove.
7. power-off protection apparatus according to claim 6, is characterized in that, the two ends of described movable contact spring are respectively arranged with moving contact, and the end of described second contact site is provided with determines contact, and described movable contact spring and fixed touching plate are by described moving contact and determine contact.
8. power-off protection apparatus according to claim 6; it is characterized in that; described pedestal also offers six junction block accepting grooves; described six junction block accepting grooves become two row and symmetry is opened in the both sides of described bar-shaped trough between two; the junction block accepting groove of described support both sides respectively with the fixed touching plate accepting groove one_to_one corresponding of described support both sides, described power-off protection apparatus also comprises six junction blocks be arranged at respectively in described six junction block accepting grooves.
9. power-off protection apparatus according to claim 8, it is characterized in that, the bottom land of described six junction block accepting grooves offers the first wiring hole respectively, the bottom of described junction block offers the second wiring hole, described first contact site is contained in described junction block accepting groove and forms wire grasping part with described junction block, and offer the 3rd wiring hole in the middle part of described first contact site, described first wiring hole, second wiring hole is communicated with the 3rd wiring hole, two sides that described pedestal is relative offer three wiring holes respectively, described three wiring holes are communicated with described six junction block accepting grooves respectively, wire passes described wiring hole and is held on described wire grasping part.
10. power-off protection apparatus according to claim 9, is characterized in that, described power-off protection apparatus also comprises and to be arranged in the middle part of described pedestal and the seal cover sealing described first square groove and bar-shaped trough and the embedding glue-line be covered on described seal cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210059854.8A CN103311061B (en) | 2012-03-08 | 2012-03-08 | Power-off protection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210059854.8A CN103311061B (en) | 2012-03-08 | 2012-03-08 | Power-off protection apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN103311061A CN103311061A (en) | 2013-09-18 |
| CN103311061B true CN103311061B (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210059854.8A Expired - Fee Related CN103311061B (en) | 2012-03-08 | 2012-03-08 | Power-off protection apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US9791139B2 (en) * | 2014-02-07 | 2017-10-17 | Philips Lighting Holding B.V. | Safe operation of an LED lamp |
| CN104218331B (en) * | 2014-09-10 | 2016-11-30 | 常州市维益科技有限公司 | Self-disconnecting electric wire connecting junction |
| CN110676082B (en) * | 2019-10-23 | 2021-06-25 | 广东海洋大学 | Electric automation equipment trouble emergency power-off device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201336228Y (en) * | 2008-12-26 | 2009-10-28 | 朱仁华 | Poweroff protection switch |
| CN101598302A (en) * | 2009-05-27 | 2009-12-09 | 百家丽（中国）照明电器有限公司 | A kind of band is safeguarded the power-off protection apparatus Tri-proof light |
| CN101901704A (en) * | 2010-06-30 | 2010-12-01 | 海洋王照明科技股份有限公司 | Power-off protector and lighting device using same |
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2012
- 2012-03-08 CN CN201210059854.8A patent/CN103311061B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201336228Y (en) * | 2008-12-26 | 2009-10-28 | 朱仁华 | Poweroff protection switch |
| CN101598302A (en) * | 2009-05-27 | 2009-12-09 | 百家丽（中国）照明电器有限公司 | A kind of band is safeguarded the power-off protection apparatus Tri-proof light |
| CN101901704A (en) * | 2010-06-30 | 2010-12-01 | 海洋王照明科技股份有限公司 | Power-off protector and lighting device using same |
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| Publication number | Publication date |
|---|---|
| CN103311061A (en) | 2013-09-18 |
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