CN219916974U

CN219916974U - Waterproof transverse pushing micro-switch

Info

Publication number: CN219916974U
Application number: CN202321443555.4U
Authority: CN
Inventors: 鲁文杰; 陈洁; 钱广; 戴式忠
Original assignee: Dongnan Electronics Co ltd
Current assignee: Dongnan Electronics Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2023-10-27
Anticipated expiration: 2033-06-07

Abstract

The utility model discloses a waterproof horizontal pushing micro switch, which is characterized by comprising a shell, a push rod, a movable sheet, a movable contact, a normally closed fixed contact and a normally open fixed contact, wherein the movable contact is arranged on the movable sheet; be provided with the protection casing in the casing, movable plate, moving contact, normally closed static contact, normally open static contact all set up in the protection casing, are provided with the impeller block on the push rod, and the impeller block slides along casing first direction and sets up, is provided with the linkage piece on the movable plate, and the linkage piece is along casing second direction removal setting, and linkage piece and impeller block linkage set up, and this micro-gap switch has further promoted the waterproof grade of switch.

Description

Waterproof transverse pushing micro-switch

Technical Field

The utility model relates to a micro-switch, in particular to a waterproof transverse pushing micro-switch.

Background

The switch for the automobile door is usually a micro switch, the micro switch is a contact mechanism with a tiny contact interval and a quick-acting mechanism, the micro switch is used for carrying out switching action by using a specified stroke and a specified force, the micro switch usually comprises a shell, a button, a movable contact piece and a terminal, the shell usually comprises an upper cover and a base for facilitating the assembly of internal parts, the movable contact piece is provided with a contact, the terminal comprises a normally closed terminal, a normally open terminal and a common terminal, the normally closed terminal is provided with a normally closed contact, the normally open terminal is provided with a normally open contact, and the micro switch drives the movable contact piece to swing to enable the contact to be in contact with the normally open contact or the normally closed contact through the button.

The existing micro-switch for automobile doors is mostly a waterproof switch, the waterproof switch is generally sleeved with a waterproof cap made of elastic materials, so that some holes still exist in the existing waterproof effect, the waterproof level requirement is higher, and therefore, how to further improve the waterproof effect of the micro-switch is a technical problem that the technical problem of continuous breakthrough is needed in the field.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a waterproof transverse pushing micro-switch, which further improves the waterproof grade of the switch.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the waterproof transverse pushing micro switch comprises a shell, a push rod, a movable plate, a movable contact, a normally closed fixed contact and a normally open fixed contact, wherein the movable contact is arranged on the movable plate, the push rod is connected to the shell in a sliding manner, and the push rod and the movable plate are arranged in a linkage manner and used for driving the movable plate to move between the normally closed fixed contact and the normally open fixed contact;

the movable piece, the movable contact, the normally closed fixed contact and the normally open fixed contact are all arranged in the protective cover, the push rod is provided with a push block, the push block slides along the first direction of the shell, the movable piece is provided with a linkage block, the linkage block moves along the second direction of the shell, and the linkage block and the push block are in linkage arrangement.

In summary, the utility model has the following beneficial effects: through setting up the protective cover additional in the casing inside, make movable piece and push rod position form high dislocation through pushing block and linkage piece, make moving contact, normal close static contact, normal open static contact further separate with outside for equipment has higher waterproof grade.

The travel of the micro switch can be increased, so that the travel of the movable piece and the push rod are matched, and the stability of the micro switch is increased.

Drawings

FIG. 1 is a schematic diagram of a micro-switch;

FIG. 2 is a schematic perspective view of the interior of the microswitch;

FIG. 3 is a schematic perspective view of the inside of the shield;

fig. 4 is a schematic perspective view of the movable plate region.

Reference numerals: 1. a housing; 11. a drive spring; 2. a push rod; 21. a pushing block; 3. a movable piece; 31. a linkage block; 32. a movable seat; 33. a slide block; 34. a chute; 35. a pushing surface; 4. a moving contact; 5. a normally closed static contact; 6. a normally open static contact; 7. a protective cover; 71. a mounting plate; 72. a mounting groove; 73. a moving groove; 74. a sensing contact; 8. a waterproof cap; 81. a first waterproof jacket; 82. a second waterproof jacket; 83. and a third waterproof jacket.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and examples. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 4, in order to achieve the above object, the present utility model provides the following technical solutions: the waterproof horizontal pushing micro switch comprises a shell 1, a push rod 2, a movable plate 3, a movable contact 4, a normally closed fixed contact 5 and a normally open fixed contact 6, wherein the movable contact 4 is arranged on the movable plate 3, the push rod 2 is connected to the shell 1 in a sliding manner, and the push rod 2 and the movable plate 3 are arranged in a linkage manner and used for driving the movable plate 3 to move between the normally closed fixed contact 5 and the normally open fixed contact 6;

the movable piece 3, the movable contact 4, the normally closed fixed contact 5 and the normally open fixed contact 6 are all arranged in the protective cover 7, the push rod 2 is provided with a push block 21, the push block 21 slides along the first direction of the shell 1, the movable piece 3 is provided with a linkage block 31, the linkage block 31 moves along the second direction of the shell 1, and the linkage block 31 and the push block 21 are in linkage.

According to the design of the utility model, the protective cover 7 is additionally arranged in the shell 1, and the positions of the movable piece 3 and the push rod 2 are staggered in height through the pushing block 21 and the linkage block 31, so that the movable contact 4, the normally closed fixed contact 5 and the normally open fixed contact 6 are further separated from the outside, and the equipment has a higher waterproof grade.

The first direction and the second direction are perpendicular, and tapered surfaces are provided on both the link block 31 and the push block 21. As shown in fig. 2, when the push rod 2 pushes to the right in the drawing, the pushing block 21 compresses the driving spring 11, and the linkage block 31 moves upwards under the action of the two conical surfaces, so as to drive the movable plate 3 to act.

On the premise of high protection, the internal conductive component is further protected.

The linkage block 31 comprises a movable seat 32 and a sliding block 33, a sliding groove 34 is arranged on the movable seat 32, the sliding block 33 is slidably connected in the sliding groove 34, and an elastic piece for resetting the sliding block 33 is arranged in the sliding groove 34.

The sliding block 33 is provided with a pushing surface 35, the pushing surface 35 is arranged in a triangular structure, one end of the movable plate 3 is abutted against the pushing surface 35, the movable plate 3 is arranged along the first direction of the shell 1, and the normally closed fixed contact 5 and the normally open fixed contact 6 are respectively arranged on two sides of the movable plate 3;

when the movable seat 32 drives the sliding block 33 to move, the movable plate 3 slides along the pushing surface 35.

As shown in fig. 3 and 4, in the process of pushing the push rod 2 rightward, the pushing block 21 pushes the moving seat 32 to move upward, at this time, the movable piece 3 acts on the sliding block 33, so that the sliding block 33 moves leftward along the sliding groove 34, and compresses the elastic member, after moving upward to a specified distance, the movable piece 3 moves past the center vertex of the pushing surface 35, and after the pushing force of the pushing surface 35 on the movable piece 3 is changed from the oblique upward direction to the oblique downward direction, at this time, the movable piece 3 rotates under the action of the pushing force, so that the movable contact 4 is separated from the normally closed fixed contact 5, the movable contact 4 is closed with the normally open fixed contact 6, and a circuit forms a loop, so as to generate an induction signal.

When the pushing force of the pushing rod 2 is contacted, the pushing rod 2 moves leftwards under the acting force of the driving spring 11, the moving seat 32 moves downwards under the action of gravity along the conical surface, the movable plate 3 moves upwards along the pushing surface 35, after the movable plate 3 moves through the center vertex of the pushing surface 35, the pushing force of the pushing surface 35 to the movable plate 3 is changed from slant downwards to slant upwards, at the moment, the movable plate 3 rotates under the action of the pushing force, so that the movable contact 4 is separated from the normally-open fixed contact 6, the movable contact 4 is closed with the normally-closed fixed contact 5, and the movable contact is opened back.

The protective cover 7 is internally provided with a mounting plate 71, the mounting plate 71 is provided with a mounting groove 72, one end of the movable plate 3 is inserted into the mounting groove 72, the other end is abutted against the pushing surface 35, and when the movable seat 32 drives the sliding block 33 to move, the movable plate 3 rotates along the mounting groove 72.

In this structure, the mounting plate 71 is connected to the wire through a connecting terminal, so that one end of the movable plate 3 is ensured to be used as one end of the circuit, and when the movable contact 4 is connected to a certain fixed contact, a designated loop is formed, and a specific circuit signal is transmitted.

A driving spring 11 is provided in the housing 1, one end of the driving spring 11 is abutted against the inner wall of the housing 1, the other end is abutted against the pushing block 21, the moving stroke of the pushing block 21 is α, and the height dimension of the pushing surface 35 is β, β being larger than α.

Alpha is the distance that the push rod 2 moves rightward in fig. 2, beta is the triangular edge of the pushing surface 35 in the up-down direction in fig. 4, and when beta is larger than alpha, it can be ensured that the movable piece 3 still moves within the range of the pushing surface 35 when the push rod 2 is pushed to the topmost end, and no detachment of the movable piece 3 occurs.

The protective cover 7 comprises a moving groove 73 for installing the moving seat 32, a sensing contact 74 is arranged at the groove top of the moving groove 73, a triggering contact is arranged on the moving seat 32, and the distance between the triggering contact and the sensing contact 74 is gamma, and alpha is equal to gamma.

Gamma is the partial distance inside the moving slot 73 in fig. 2, which is designed such that when the push rod 2 is pushed to the top, the trigger contact abuts against the sensing contact 74, so that a new loop is formed, whereby various signals can be designed for the micro switch, so that different signal transmissions can be designed for different situations.

In summary, the design of the distance can increase the stroke of the micro switch, so that the stroke of the movable piece 3 and the stroke of the push rod 2 are matched, and the stability of the micro switch is increased.

The shell 1 is provided with a waterproof cap 8, and the waterproof cap 8 is provided with a chute 34 for the push rod 2 to pass through;

the waterproof cap 8 at least comprises a first waterproof sleeve 81 and a second waterproof sleeve 82, the first waterproof sleeve 81 is abutted with the shell 1, the second waterproof sleeve 82 is arranged on one side, far away from the shell 1, of the first waterproof sleeve 81, and the radial length of the first waterproof sleeve 81 is larger than that of the second waterproof sleeve 82.

The waterproof cap 8 further comprises a third waterproof sleeve 83, the third waterproof sleeve 83 is arranged on one side of the second waterproof sleeve 82 away from the shell 1, and the diameter-length dimension of the second waterproof sleeve 82 is larger than that of the third waterproof sleeve 83;

the first waterproof jacket 81, the second waterproof jacket 82 and the third waterproof jacket 83 are made of elastic materials, and the sum d of deformation strokes of the first waterproof jacket 81, the second waterproof jacket 82 and the third waterproof jacket 83 is larger than or equal to alpha.

The design of the first waterproof jacket 81, the second waterproof jacket 82 and the third waterproof jacket 83 can ensure sealing and simultaneously match with the pressing change when the push rod 2 pushes.

The connection terminals of the normally closed fixed contact 5, the normally open fixed contact 6 and the moving contact 4 are arranged above the protective cover 7, and the movable seat 32 is arranged below the protective cover 7.

The design of this position further increases the waterproof effect inside the housing 1.

The above is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The utility model provides a waterproof horizontal pushing micro-gap switch, includes casing (1), push rod (2), movable piece (3), moving contact (4), normal close static contact (5), normal open static contact (6), moving contact (4) set up on movable piece (3), push rod (2) slip connect on casing (1), push rod (2) and movable piece (3) linkage set up for drive movable piece (3) are at normal close static contact (5) and normal open static contact (6) between moving;

the method is characterized in that: be provided with protection casing (7) in casing (1), movable plate (3), moving contact (4), normal close static contact (5), normal open static contact (6) all set up in protection casing (7), be provided with on push rod (2) and promote piece (21), it slides along casing (1) first direction and sets up to promote piece (21), be provided with linkage piece (31) on movable plate (3), linkage piece (31) remove along casing (1) second direction and set up, linkage piece (31) and promote piece (21) linkage setting.

2. The waterproof push-pull micro switch according to claim 1, wherein: the first direction and the second direction are perpendicular, and conical surfaces are arranged on the linkage block (31) and the pushing block (21).

3. The waterproof push-pull micro switch according to claim 1, wherein: the linkage block (31) comprises a movable seat (32) and a sliding block (33), wherein a sliding groove (34) is formed in the movable seat (32), the sliding block (33) is connected in the sliding groove (34) in a sliding mode, and an elastic piece for resetting the sliding block (33) is arranged in the sliding groove (34).

4. A waterproof push-pull micro switch according to claim 3, characterized in that: the sliding block (33) is provided with a pushing surface (35), the pushing surface (35) is in a triangular structure, one end of the movable plate (3) is abutted against the pushing surface (35), the movable plate (3) is arranged along the first direction of the shell (1), and the normally closed fixed contact (5) and the normally open fixed contact (6) are respectively arranged at two sides of the movable plate (3);

when the movable seat (32) drives the sliding block (33) to move, the movable piece (3) slides along the pushing surface (35).

5. The waterproof push-pull micro switch according to claim 4, wherein: the protective cover is characterized in that a mounting plate (71) is arranged in the protective cover (7), a mounting groove (72) is formed in the mounting plate (71), one end of the movable plate (3) is inserted into the mounting groove (72), the other end of the movable plate is abutted to the pushing surface (35), and the movable plate (3) rotates along the mounting groove (72) in the moving process of the movable seat (32) driving the sliding block (33).

6. The waterproof push-pull micro switch according to claim 5, wherein: the novel hydraulic lifting device is characterized in that a driving spring (11) is arranged in the shell (1), one end of the driving spring (11) is abutted against the inner wall of the shell (1), the other end of the driving spring is abutted against the pushing block (21), the moving stroke of the pushing block (21) is alpha, and the height dimension of the pushing surface (35) is beta, wherein beta is larger than alpha.

7. The waterproof push-pull micro switch of claim 6, wherein: the protective cover (7) comprises a moving groove (73) for installing a moving seat (32), an induction contact (74) is arranged at the groove top of the moving groove (73), a trigger contact is arranged on the moving seat (32), and the distance between the trigger contact and the induction contact (74) is gamma, wherein alpha is equal to gamma.

8. The waterproof push-pull micro switch of claim 6, wherein: a waterproof cap (8) is arranged on the shell (1), and a chute (34) for the push rod (2) to pass through is arranged on the waterproof cap (8);

waterproof cap (8) is including first waterproof cover (81) and second waterproof cover (82) at least, first waterproof cover (81) and casing (1) butt, second waterproof cover (82) set up in one side that casing (1) was kept away from to first waterproof cover (81), and the long size in footpath of first waterproof cover (81) is greater than the long size in footpath of second waterproof cover (82).

9. The waterproof push-pull micro switch of claim 8, wherein: the waterproof cap (8) further comprises a third waterproof sleeve (83), the third waterproof sleeve (83) is arranged on one side, far away from the shell (1), of the second waterproof sleeve (82), and the radial length of the second waterproof sleeve (82) is larger than that of the third waterproof sleeve (83);

the first waterproof sleeve (81), the second waterproof sleeve (82) and the third waterproof sleeve (83) are made of elastic materials, and the sum d of deformation strokes of the first waterproof sleeve (81), the second waterproof sleeve (82) and the third waterproof sleeve (83) is larger than or equal to alpha.

10. The waterproof push-pull micro switch of claim 8, wherein: the normal close static contact (5), the normal open static contact (6) and the connecting terminal of the moving contact (4) are arranged above the protective cover (7), and the movable seat (32) is arranged below the protective cover (7).