CN209249336U - It is a kind of can directly opening operation snap switch - Google Patents

Abstract

The utility model discloses it is a kind of can direct opening operation snap switch, including external shell and internal plinth；Internal plinth includes base housing, connecting column group, push rod, pull rod, tension spring and metal clips；Opening is equipped at the top of external shell, opening is built-in with vertical guide rail；Base housing is fixed on the bottom of external shell, and connecting column group includes the first binding post, the second binding post equipped with low level contacts and the third binding post equipped with high-order contact equipped with U-shaped connecting plate；Limit card slot is equipped at the top of base housing；Push rod bottom side is equipped with horizontal connection arm, one end of pull rod passes through U-shaped connecting plate and horizontal connection arm is hinged, the other end of pull rod is arranged in limit card slot, metal clips one end is pressed from both sides equipped with U-shaped connection, fixture block is equipped at the two sides port of U-shaped connection folder, U-shaped connecting plate bayonet, the metal clips other end are equipped with contact；Hinge segment is equipped with the fixing groove of fixed tension spring one end, and metal clips is equipped with fixation hole；Push rod bottom is equipped with inclined-plane boss.

Description

It is a kind of can directly opening operation snap switch

Technical field

The utility model relates to snap switch fields, and in particular to it is a kind of can direct opening operation snap switch.

Background technique

Snap switch belongs to one of common switching component, so that circuit is formed access or open circuit by snap switch； However existing snap switch is easy to produce contact Welding Phenomena when high current operates, since the fever of contact resistance makes conduction Spot and its neighbouring metal molten and weld, or the electric arc that generates makes contact surface metal molten during contact closes a floodgate With gasification and eventually lead to contact welding.So providing in certain specific occasions, switch module is needed with direct break function, There is the ability for forcing disjunction melting welding contact.But the switch module in subsidiary loop generally has snap-action and slow motion two at present Kind.Slow motion switch module is easier to realize forced switching-off function, and snap switch module, especially small-sized snap-action module compare Hardly possible realizes direct break function.Therefore it is a kind of with direct break function can when melting welding occurs direct opening operation snap-action Button switch becomes current this field and is badly in need of the problem to be solved.

Utility model content

In order to overcome above-mentioned defect in the prior art, the utility model provide it is a kind of can direct opening operation snap-action Switch, the miniature snap switch can ensure that switch high current operate occur melting welding when can direct forced switching-off function, Further enhance the safety of snap switch.

Technical solution

It is a kind of can direct opening operation snap switch, including external shell and internal plinth；The internal plinth includes It is arranged in the intracorporal base housing of the external shell, connecting column group, push rod, pull rod, tension spring and metal clips；The external shell Top surface is provided inwardly with opening, and the opening is inwardly provided with vertical guide rail, passes through the vertical guide rail at the top of the push rod It is moved to the overthe openings；The base housing is fixed on the bottom of the external shell, and the connecting column group includes from a left side The first binding post, the second binding post and third binding post of the base housing bottom are successively set on to the right side；Described first connects It is upwardly extended at the top of terminal and is equipped with U-shaped connecting plate vertically, be equipped with low level contacts, the third wiring at the top of second binding post Column top extends upwardly to the top of the low level contacts and is equipped with high-order contact；It is located at described first at the top of the base housing Position between binding post and second binding post is equipped with limit card slot；The push rod bottom side connects to the level of being externally provided with Arm is connect, one end of the pull rod is hinge segment, and the hinge segment passes through the hollow part of the U-shaped connecting plate and the level connects It connects arm to be mutually connected by hinges 26, the other end of the pull rod is fixed in the limit card slot, the metal clips one End is equipped with U-shaped connection and presss from both sides, and is equipped with fixture block at the two sides port of the U-shaped connection folder, the U-shaped connecting plate lateral wall is equipped with and institute The compatible bayonet of fixture block is stated, it is described for one end of the U-shaped connection folder to be connected to the U-shaped connecting plate lateral wall The metal clips other end is equipped with the contact extended between the high-order contact and the low level contacts；The hinge segment is equipped with solid The fixing groove of fixed described tension spring one end, the metal clips are equipped with the fixation hole of the fixed tension spring other end；The push rod Bottom is equipped with inclined-plane boss.

The hinge segment two sides of the pull rod are equipped with bending vertical plate；The hinge is U-shaped hinge, the U-shaped hinge Bottom is fixed on the horizontal connection arm, and opening both ends are separately fixed on the bending vertical plate of corresponding side.

The push rod uses insulating materials.

The external shell uses insulating materials.

The base housing is all made of insulating materials.

The utility model compared with prior art, has the advantages that

The utility model can realize direct break function under high current environment.Push rod is when being not affected by external force F effect Entire switch is in initial position, and the hole on metal clips will receive the upward pulling force of tension spring, at this time the contact on metal clips It contacts with each other with high-order contact；Under the action of by external force F, push rod moves tension spring down and is stretched, when the certain stroke of arrival When, the hole on metal clips will receive the pulling force that tension spring tension becomes downward, touching under the action of this pulling force, on metal clips Head is disengaged with upper high-order contact rapidly, when melting welding occurs for metal clips contact and high-order contact, although push rod by It moves down under the action of external force F, the hole on metal clips, which will receive the downward pulling force of tension spring but, can not make contact and high-order touching Point separation in time, by means of the inclined-plane boss of inelastic push rod bottom, in the effect by external force F, inclined-plane boss is under It will directly be in contact with metal clips during drop, external force F will be acted directly on metal clips, directly by contact and a high position Contact disconnects, force disconnect circuit, to guarantee to realize in the environment of melting welding occurs for high current for the direct of snap switch It disconnects.

Detailed description of the invention

Fig. 1 be it is a kind of can the direct snap switch of opening operation structural schematic diagram.

Fig. 2 is the inside schematic perspective view of internal plinth in Fig. 1.

Fig. 3 is the external perspective structural representation of base housing in Fig. 1.

Fig. 4 is the schematic perspective view of binding post group in Fig. 1.

Stress schematic diagram after when push rod stress is pressed when Fig. 5 is metal clips generation melting welding in Fig. 1.

Fig. 6 is that push rod of the metal clips when melting welding occurs directly disconnects metal clips contact and the process of high-order contact is shown It is intended to.

Appended drawing reference:

External shell 1, internal plinth 2, base housing 3, connecting column group 4, push rod 5, pull rod 6, tension spring 7, metal clips 8, Be open 9, vertical guide rail 10, the first binding post 11, the second binding post 12, third binding post 13, U-shaped connecting plate 14, low level contacts 15, high-order contact 16, limit card slot 17, horizontal connection arm 18, hinge segment 19, fixing groove 20, hinge (U type hinge) 21, U-shaped Connection folder 22, tension spring end 23, bayonet 24, contact 25, fixation hole 26, inclined-plane boss 27, bending vertical plate 28.

Specific embodiment

For elaboration the content of the present invention is better described, expansion is carried out below with reference to schematic diagram 1-6 and embodiment and is said It is bright:

Fig. 1 be it is a kind of can the direct snap switch of opening operation structural schematic diagram, Fig. 2 is the interior of internal plinth 2 in Fig. 1 Portion's structural schematic diagram.As shown in Fig. 1-Fig. 2, the utility model provide it is a kind of can direct opening operation snap switch, including External shell 1 and internal plinth 2；Internal plinth 2 includes the base housing 3 being arranged in external shell 1, connecting column group 4, pushes away Bar 5, pull rod 6, tension spring 7 and metal clips 8；1 top surface of external shell is provided inwardly with opening 9, and opening 9 is inwardly provided with vertical Guide rail 10, push rod 5 can be according to the variation in the direction external force F along 10 upper and lower displacement of vertical guide rail, and can will lean out at the top of push rod 5 to opening 9 top of mouth.Base housing 3 is fixed on the bottom of external shell 1.

Fig. 3 is the external perspective structural representation of base housing in Fig. 1, and Fig. 4 is that the stereochemical structure of binding post group in Fig. 1 is shown It is intended to, as shown in Fig. 3 and Fig. 4, connecting column group 4 includes the first binding post for being successively set on 3 bottom of base housing from left to right 11, the second binding post 12 and third binding post 13；It is upwardly extended at the top of first binding post 11 and is equipped with U-shaped connecting plate 14 vertically, the It is equipped with low level contacts 15 at the top of two binding posts 12, extends upwardly to the top of low level contacts 15 at the top of third binding post 13 and sets There is high-order contact 16.

Position at the top of base housing 3 between the first binding post 11 and the second binding post 12 is equipped with limit card slot 17；5 bottom side of push rod is hinge segment 19 to horizontal connection arm 18, one end of pull rod 6 is externally provided with, and hinge segment 19 passes through U-shaped company The hollow part of fishplate bar 14 is connected with each other with horizontal connection arm 18 by hinge 21, and the other end of pull rod 6 is fixed at limit In card slot 17,8 one end of metal clips is equipped with U-shaped connection folder 22, is equipped with fixture block at the two sides port of U-shaped connection folder 22 and (does not show Out), U-shaped 14 lateral wall of connecting plate is equipped with bayonet 24 compatible with fixture block (not shown), for by U-shaped connection folder 22 One end is connected on U-shaped 14 lateral wall of connecting plate, and 8 other end of metal clips is equipped with and extends to high-order contact 16 and low level contacts 15 Between contact 25；Hinge segment 19 is equipped with the fixing groove 20 of fixed 7 one end end 23 of tension spring, and metal clips 8 is equipped with fixed draw The fixation hole 26 of 7 other end end 23 of spring.

Further, 19 two sides of hinge segment of pull rod 6 are equipped with bending vertical plate 28；Hinge 21 is U-shaped hinge 21, U-shaped hinge 21 bottom of chain is fixed on horizontal connection arm 18, and 9 both ends of opening are separately fixed on the bending vertical plate 28 of corresponding side.

Further, push rod 5, external shell 1 and base housing 3 are all made of insulating materials, preferably insulate in the present embodiment Plastics.

Stress schematic diagram after when push rod stress is pressed when Fig. 5 is metal clips generation melting welding in Fig. 1；By Fig. 5 institute Show, the U-shaped connection folder 22 of 8 one end of metal clips clips at U-shaped 14 two sides lateral wall upper latch notch 24 of connecting plate, the touching of the other end First 2525 realize the variation of upper and lower position in the case where external force F acts on push rod 5, form snap switch by original state to triggering shape The transformation of state, to connect the route different with disjunction.

Specifically, push rod 5, which is in hole of the initial position when being not affected by external force F effect on metal clips 8, will receive tension spring 7 Upward pulling force, the contact 25 on metal clips 8 and high-order contact 16 contact with each other at this time, and entire snap switch is in just at this time Beginning position, then the metal surface of the first binding post 11 is connect by metal clips 8 with the contact formation first of high-order contact 16 at this time The access of terminal 11 and third binding post 13；Under the action of push rod 5 is by external force F, push rod 5 moves down, horizontal connection arm Fixed hinge 21 drives the hinge segment 19 of pull rod 6 to move downward at 18, at this time at the hinge segment 19 of pull rod 6 at fixed tension spring 7 In gradually tensional state, when rebound potential energy of the kinetic energy of external force F greater than tension spring 7, push rod 5 moves more down, the stretching of tension spring 7 Length is bigger, and the rebound potential energy of savings is also bigger.When the tensional state (length) to tension spring 7 reaches certain length, metal Hole on elastic slice 8 will receive 7 pulling force of tension spring and original upward pulling force be transformed into downward pulling force, the effect of downward pulling force herein Under, contact 25 on metal clips 8 is detached from rapidly with upper high-order contact 16 and is in contact with low level contacts 15, the first connecting column with Second connecting column circuit connection, which is in, to be disconnected, and snap switch at this time is in triggering state, then the first binding post 11 connects with second The formation access of terminal 12.When the active force of external force F disappears or the kinetic energy of external force F is less than the rebound potential energy of tension spring 7, gold The larger rebound potential energy that hole on category elastic slice 8 will receive the savings of tension spring 7 makes metal clips 8 quickly form reset, the rebound of tension spring 7 It drives the hinge segment of pull rod 6 to move up, pushes push rod 5 to do resetting movement upwards up to initial position, at this time by hinge 21 Contact 25 is moved up to high-order 16 surface of contact by low level contacts 15 and forms contact, the first connecting column and third connecting column circuit connection In disconnection, snap switch restores to original state at this time, then the first connecting column and the second connecting column restore connecting path.

Snap switch is easy to produce 25 Welding Phenomena of contact when high current operates, since the fever of contact resistance makes conduction Spot and its neighbouring metal molten and weld, or the electric arc generated in 25 making process of contact makes 25 surface metal of contact It melts and gasifies and eventually lead to the welding of contact 25, therefore be equipped with inclined-plane boss 27, the inclined-plane of inclined-plane boss 27 in 5 bottom of push rod 22 are pressed from both sides towards the U-shaped connection of metal clips 8, the position between the convex surface face fixation hole 26 and contact 25 of inclined-plane boss 27.

Further, Fig. 6 is that push rod of the metal clips when melting welding occurs directly disconnects metal clips contact and height in Fig. 5 The process schematic of position contact.As shown in Figure 6, process schematic respectively includes " initial position " → " 5 stress of push rod " → " push rod 5 reset " → " initial position ".Specifically, when with high-order contact 16 melting welding occurs for 8 contact 25 of metal clips, push rod 5 and gold Belong to elastic slice 8 and is in " initial position " state, after " push rod stress ", although push rod 5 moves down under the action of by external force F, Hole on metal clips 8 will receive the downward pulling force of tension spring 7 and be insufficient to allow the contact 25 that melting welding occurs and high-order contact 16 in time Separation, by means of the inclined-plane boss 27 of inelastic 5 bottom of push rod, in the effect by external force F, the convex surface of inclined-plane boss 27 It will directly be in contact during the decline with metal clips 8, external force F will be acted directly on metal clips 8, directly by contact 25 disconnect with high-order contact 16, the connection of force disconnect contact 25 and high-order contact 16, external force F disappearance at this time, push rod 5 and gold The contact 25 for belonging to elastic slice 8 enters upward reset state, and final push rod 5 resets to " initial position " state with metal clips 8.To Guarantee to occur to realize the direct disconnection for snap switch when melting welding under high current environment, the peace of snap switch has been effectively ensured Quan Xing.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality It applies example technical solutions of the utility model are described in detail, it will be understood by those of skill in the art that it still can be with It modifies to technical solution documented by previous embodiment, or part of technical characteristic is replaced on an equal basis；And this Modify or replace, various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution spirit with Range.

Claims (5)

1. one kind can direct opening operation snap switch, including external shell and internal plinth；It is characterized by: the inside Pedestal includes being arranged in the intracorporal base housing of the external shell, connecting column group, push rod, pull rod, tension spring and metal clips；It is described External shell top surface is provided inwardly with opening, and the opening is inwardly provided with vertical guide rail, passes through at the top of the push rod described Vertical guide rail is moved to the overthe openings；The base housing is fixed on the bottom of the external shell, the connecting column group The first binding post, the second binding post and third binding post including being successively set on the base housing bottom from left to right；Institute It states to upwardly extend at the top of the first binding post and is equipped with U-shaped connecting plate vertically, low level contacts are equipped at the top of second binding post, it is described The top of the low level contacts is extended upwardly at the top of third binding post and is equipped with high-order contact；It is located at the top of the base housing Position between first binding post and second binding post is equipped with limit card slot；The push rod bottom side is to peripheral hardware There is horizontal connection arm, one end of the pull rod is hinge segment, and the hinge segment passes through hollow part and the institute of the U-shaped connecting plate It states horizontal connection arm to be mutually connected by hinges 26, the other end of the pull rod is fixed in the limit card slot, the gold Belong to elastic slice one end to press from both sides equipped with U-shaped connection, is equipped with fixture block, the U-shaped connecting plate lateral wall at the two sides port of the U-shaped connection folder Equipped with bayonet compatible with the fixture block, for one end of the U-shaped connection folder to be connected to the U-shaped connecting plate lateral wall On, the metal clips other end is equipped with the contact extended between the high-order contact and the low level contacts；It is described hinged Section is equipped with the fixing groove of fixed described tension spring one end, and the metal clips is equipped with the fixation hole of the fixed tension spring other end； The push rod bottom is equipped with inclined-plane boss.

2. one kind according to claim 1 can directly opening operation snap switch, it is characterised in that: the institute of the pull rod It states hinge segment two sides and is equipped with bending vertical plate；The hinge is U-shaped hinge, and the U-shaped hinged base is fixed on the level even It connects on arm, opening both ends are separately fixed on the bending vertical plate of corresponding side.

3. one kind according to claim 1 can direct opening operation snap switch, it is characterised in that: the push rod uses Insulating materials.

4. one kind according to claim 1 can directly opening operation snap switch, it is characterised in that: the external shell Using insulating materials.

5. one kind according to claim 1 can directly opening operation snap switch, it is characterised in that: the base housing It is all made of insulating materials.