CN213124221U

CN213124221U - Micro-switch

Info

Publication number: CN213124221U
Application number: CN202021492807.9U
Authority: CN
Inventors: 王腾飞
Original assignee: Zhejiang Zhenan Vehicle Industry Co ltd
Current assignee: Zhejiang Zhenan Vehicle Industry Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-05-04
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a microswitch, which comprises a tube shell, a button, a movable block, a first elastic piece and a base; the base is fixed at the bottom in the tube shell, the movable block is arranged above the base in the tube shell and is suitable for moving up and down between a first position and a second position, the upper end and the lower end of the first elastic piece are respectively abutted against the movable block and the base, the button is connected to the upper portion of the movable block, two conductive terminals are fixed on the base, the movable block is provided with a conductive block and a second elastic piece, the movable block is located at the first position under the action of the elastic force of the first elastic piece in a normal state, the conductive block is in simultaneous contact with the two conductive terminals at the moment and correspondingly, when the movable block moves downwards to the second position by pressing the button, the conductive block is in simultaneous contact with the two conductive terminals at different times. The utility model discloses in to the rational design of micro-gap switch structure, compact structure is reasonable, is favorable to the miniaturized design of product to be suitable for and install in more narrow and small space.

Description

Micro-switch

Technical Field

The utility model relates to a micro-gap switch belongs to switch structural design field.

Background

At present, all micro switches in the market apply external mechanical force to an action reed through a transmission element, and accumulate energy to a critical point to generate instantaneous action so as to quickly connect or disconnect a movable contact and a fixed contact at the tail end of the action reed. When the acting force on the transmission element is removed, the action reed generates reverse action force, and when the transmission element is reversely formed and reaches the action critical point of the reed, the reverse action is instantly completed. The conventional micro switches have the disadvantages that the unreasonable structure leads to large volume of the product, and the development of the product is restricted due to the structures disclosed in patent documents such as CN201584323U and CN 205177665U.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a compact structure's micro-gap switch.

The technical scheme for realizing the purpose of the utility model is that the micro-switch comprises a tube shell, a button, a movable block, a first elastic piece and a base; the base is fixed at the bottom in the pipe shell, the movable block is arranged above the base in the pipe shell and is suitable for moving up and down between a first position and a second position, the upper end and the lower end of the first elastic piece are respectively abutted against the movable block and the base to provide upward reset elasticity for the movable block, the button is connected with the upper part of the movable block, two conductive terminals are fixed on the base, one side of the movable block, which faces the conductive terminals, is provided with a conductive block and a second elastic piece which provides lateral elastic force for the conductive block, the movable block is positioned at the first position under the elastic force action of the first elastic piece in a normal state, and the conductive block is simultaneously contacted with/not simultaneously contacted with the two conductive terminals, correspondingly, when the button is pressed to enable the movable block to move downwards to the second position, the conductive block and the two conductive terminals are not in contact/contact simultaneously.

In the technical scheme, a lamp panel is arranged between the movable block and the button, an LED lamp bead is arranged on the lamp panel, and at least the position, corresponding to the LED lamp bead, on the button is transparent;

the LED lamp is characterized in that a power supply terminal is fixed on the base, and the LED lamp beads are electrically connected with the power supply terminal.

In the technical scheme, the lamp panel is fixed with the upper end and the elastic foot that LED lamp pearl electricity is connected, elastic foot lower extreme and power supply terminal contact realization electricity are connected.

In the technical scheme, the upper part of the movable block is provided with a clamping groove, and the edge of the lamp panel is clamped into the clamping groove.

In the above technical solution, the conductive block has two conductive protrusions respectively contacting with the two conductive terminals.

In the technical scheme, the side part of the movable block is provided with a containing cavity, the conductive block and the second elastic piece are arranged in the containing cavity, a limiting groove transversely arranged on the side wall of the containing cavity is formed in the side edge of the conductive block, and the side edge of the conductive block is inserted into the limiting groove.

In the technical scheme, the upper end of the base is provided with the concave cavity, the lower part of the movable block is located in the concave cavity, the side part of the movable block is provided with the clamping block, the side wall of the concave cavity is provided with the limiting sliding groove, the clamping block is clamped in the limiting sliding groove, and the clamping block moves up and down in the limiting sliding groove when the movable block moves up and down.

In the above technical scheme, the accommodating cavity transversely penetrates through the movable block, a movable insert is arranged in the accommodating cavity, the fixture block is formed at the outer end part of the movable insert, and the second elastic piece is arranged between the movable insert and the conductive block and provides opposite acting force for the conductive block and the movable insert.

In the above technical scheme, the first elastic member and the second elastic member are both helical compression springs.

The utility model discloses has positive effect: the utility model discloses in rationalize the design to the micro-gap switch structure, remove through the control movable block between primary importance and second place and drive the conducting block and remove, contact the switch-on that makes the realization switch simultaneously when conducting block and two conductive terminal, realize the disconnection of switch when conducting block and two conductive terminal are not contacted simultaneously, contrast current micro-gap switch, compact structure is reasonable, is favorable to the miniaturized design of product to be suitable for and install in more narrow and small space.

Drawings

Fig. 1 is a schematic structural view of a micro switch of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic view of the microswitch of FIG. 1 with parts (button, housing, base, first resilient member) removed;

FIG. 4 is a schematic structural view of the base of the present invention;

fig. 5 is the utility model discloses the structure schematic diagram when well lamp plate and power supply terminal cooperate.

The reference symbols shown in the figures are: 1-a pipe shell; 2-a button; 3-a movable block; 4-a first elastic member; 5-a base; 6-conductive terminal; 7-an accommodation cavity; 8-a conductive block; 9-a second elastic member; 10-a lamp panel; 11-LED lamp beads; 12-a power supply terminal; 13-a resilient foot; 14-a card slot; 15-conductive bumps; 16-a limiting groove; 17-a cartridge; 18-a limiting chute; 19-movable insert.

Detailed Description

The structure of the micro switch in the present invention is described below with reference to the drawings of the specification:

a microswitch is shown in figures 1 to 5 and comprises a tube shell 1, a button 2, a movable block 3, a first elastic piece 4 and a base 5; the base 5 is fixed at the bottom in the tube shell 1, the movable block 3 is arranged above the base 5 in the tube shell 1 and is suitable for moving up and down between a first position and a second position, the upper end and the lower end of the first elastic piece 4 are respectively abutted against the movable block 3 and the base 5 to provide upward reset elastic force for the movable block 3, the button 2 is connected to the upper part of the movable block 3, two conductive terminals 6 are fixed on the base 5, one side of the movable block 3 facing the conductive terminals 6 is provided with a conductive block 8 and a second elastic piece 9 for providing lateral elastic force for the conductive block 8, the movable block 3 is positioned at the first position under the elastic force of the first elastic piece 4 in a normal state, at the moment, the conductive block 8 and the two conductive terminals 6 are simultaneously contacted/not simultaneously, correspondingly, when the button 2 is pressed to enable the movable block 3 to move down to the second position, the conductive block 8 and the two conductive terminals 6 are not in contact/in contact at the same time. To the rational design of micro-gap switch structure in this embodiment, move between primary importance and second place through control movable block 3 and drive conducting block 8 and remove, make the switch-on of realizing the switch when conducting block 8 and two conductive terminal simultaneous contact, realize the disconnection of switch when conducting block 8 and two conductive terminal different contacts, compare current micro-gap switch, compact structure is reasonable, is favorable to the miniaturized design of product, and is suitable for and installs in more narrow and small space.

More specifically, in practical operation, the micro switch in this embodiment has two setting modes: one is that when the movable block 3 is in the first position, the conductive block 8 is in contact with two conductive terminals 6 at the same time, correspondingly, when the button 2 is in the second position, the conductive block 8 is not in contact with two conductive terminals 6 at the same time (i.e. the conductive block 8 is in contact with one of the conductive terminals 6, and is not in contact with both conductive terminals), and in this setting mode, the microswitch is a normally closed microswitch; the other is that, when the movable block 3 is in the first position, the conductive block 8 and the two conductive terminals 6 are not in contact at the same time, correspondingly, when the button 2 is in the second position, the conductive block 8 and the two conductive terminals 6 are in contact at the same time, and the microswitch is a normally open microswitch in this setting mode.

In this embodiment, a lamp panel 10 is installed between the movable block 3 and the button 2, an LED lamp bead 11 is provided on the lamp panel 10, and at least a position on the button 2 corresponding to the LED lamp bead 11 is transparent; be fixed with power supply terminal 12 on the base 5, LED lamp pearl 11 is connected with power supply terminal 12 electricity, and when this micro-gap switch installation was used, insert power supply terminal 12 into the power supply line and provide power supply for LED lamp pearl 11, LED lamp pearl is luminous to play the indicating action.

Further, be fixed with the upper end on the lamp plate 10 with elasticity foot 13 that 11 electricity of LED lamp pearls are connected, elasticity foot 13 lower extreme realizes the electricity with the contact of power supply terminal 12 and is connected, through elasticity foot 13 self elasticity effect down with the contact of power supply terminal 12, be favorable to the equipment when having guaranteed the electric connection reliability.

In this embodiment, the upper portion of movable block 3 is equipped with draw-in groove 14, the edge card of lamp plate 10 is gone into in the draw-in groove 14, effectively spacing to lamp plate 10 through draw-in groove 14, prevents that lamp plate 10 from shifting.

Furthermore, the conductive block 8 is provided with two conductive protrusions 15 respectively in corresponding contact with the two conductive terminals 6, that is, the conductive protrusions 15 are in contact with the conductive terminals 6 to realize electrical connection.

In this embodiment, the lateral part of the movable block 3 is provided with a containing cavity 7, the conductive block 8 and the second elastic element 9 are arranged in the containing cavity 7, a limiting groove 16 transversely arranged on the lateral wall of the containing cavity 7 is arranged, the side edge of the conductive block 8 is arranged in the limiting groove 16 through insertion, and the conductive block 8 is limited and guided by the limiting groove 16.

Further, the upper end of base 5 has the cavity, the lower part of movable block 3 is in the cavity, 3 lateral parts of movable block are equipped with fixture block 17, be equipped with spacing spout 18 on the lateral wall of cavity, fixture block 17 card is gone into in the spacing spout 18, when movable block 3 reciprocates fixture block 17 is in reciprocate in the spacing spout 18, play spacing and guide effect to reciprocating of movable block 3 through spacing spout 18 and fixture block 17's cooperation, prevent that movable block 3 from taking place circumferential direction and influencing electric connection performance.

In this embodiment, the accommodating cavity 7 transversely penetrates through the movable block 3, a movable insert 19 is disposed in the accommodating cavity, the fixture block 17 is formed at the outer end of the movable insert 19, the second elastic member 9 is disposed between the movable insert 19 and the conductive block 8, and provides opposite acting forces for the conductive block 8 and the movable insert 19, when assembling, the conductive block 8 and the movable insert 19 are extruded into the accommodating cavity 7, and then the conductive block and the movable insert are mounted in the cavity on the base 5, the fixture block 17 protrudes out of the side surface of the movable block 3 under the elastic action of the second elastic member and is matched with the movable limiting sliding groove 18 to limit the movable block 3 in the cavity of the base 5, and meanwhile, the second elastic member 9 provides an outward elastic acting force for the conductive block 8 to ensure that the conductive block 8 and the conductive terminal can be reliably contacted.

Still further, in this embodiment, the first elastic member 4 and the second elastic member 9 both use helical compression springs.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the present invention.

Claims

1. A microswitch is characterized by comprising a pipe shell (1), a button (2), a movable block (3), a first elastic piece (4) and a base (5); the base (5) is fixed at the bottom in the tube shell (1), the movable block (3) is arranged above the base (5) in the tube shell (1) and is suitable for moving up and down between a first position and a second position, the upper end and the lower end of the first elastic piece (4) are respectively abutted against the movable block (3) and the base (5) to provide upward reset elastic force for the movable block (3), the button (2) is connected to the upper part of the movable block (3), two conductive terminals (6) are fixed on the base (5), one side of the movable block (3) facing the conductive terminals (6) is provided with a conductive block (8) and a second elastic piece (9) providing lateral elastic force for the conductive block (8), and the movable block (3) is positioned at the first position under the elastic force of the first elastic piece (4) in a normal state, at the moment, the conductive block (8) and the two conductive terminals (6) are contacted/contacted simultaneously, correspondingly, when the button (2) is pressed to enable the movable block (3) to move downwards to the second position, the conductive block (8) and the two conductive terminals (6) are contacted/contacted simultaneously at different times.

2. The microswitch of claim 1, wherein a lamp panel (10) is arranged between the movable block (3) and the button (2), the lamp panel (10) is provided with an LED lamp bead (11), and the button (2) is transparent at least at a position corresponding to the LED lamp bead (11);

a power supply terminal (12) is fixed on the base (5), and the LED lamp beads (11) are electrically connected with the power supply terminal (12).

3. The microswitch of claim 2, wherein an elastic pin (13) with the upper end electrically connected with the LED lamp bead (11) is fixed on the lamp panel (10), and the lower end of the elastic pin (13) is in contact with a power supply terminal (12) to realize electrical connection.

4. The microswitch according to claim 2, wherein a clamping groove (14) is formed in the upper portion of the movable block (3), and the edge of the lamp panel (10) is clamped into the clamping groove (14).

5. Microswitch according to claim 1, wherein the conductive block (8) has two conductive protrusions (15) which are in corresponding contact with two conductive terminals (6), respectively.

6. The microswitch according to claim 1, wherein a containing cavity (7) is formed in the side portion of the movable block (3), the conductive block (8) and the second elastic piece (9) are arranged in the containing cavity (7), a limiting groove (16) is transversely formed in the side wall of the containing cavity (7), and the side edge of the conductive block (8) is inserted into the limiting groove (16).

7. The microswitch according to claim 6, wherein a concave cavity is formed in the upper end of the base (5), the lower portion of the movable block (3) is located in the concave cavity, a clamping block (17) is arranged on the side portion of the movable block (3), a limiting sliding groove (18) is formed in the side wall of the concave cavity, the clamping block (17) is clamped in the limiting sliding groove (18), and the clamping block (17) moves up and down in the limiting sliding groove (18) when the movable block (3) moves up and down.

8. The microswitch according to claim 7, wherein the accommodating cavity (7) transversely penetrates through the movable block (3), a movable insert (19) is arranged in the accommodating cavity, the clamping block (17) is formed at the outer end of the movable insert (19), and the second elastic element (9) is arranged between the movable insert (19) and the conductive block (8) to provide opposite acting forces for the conductive block (8) and the movable insert (19).

9. Microswitch according to any one of claims 1 to 8, wherein the first (4) and the second (9) elastic member are helical compression springs.