CN112635225A

CN112635225A - Seesaw switch

Info

Publication number: CN112635225A
Application number: CN202011456974.2A
Authority: CN
Inventors: 潘小军; 郭德斌; 吴礼红; 查海林
Original assignee: Ningbo Gongniu Electric Appliances Co Ltd
Current assignee: Ningbo Gongniu Electric Appliances Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-04-09

Abstract

The present application relates to a rocker switch, which belongs to the technical field of switches. The rocker switch includes a rocker, a transition piece, a support piece and two outgoing terminals; the rocker, the transition piece and the support piece are all located between the two outgoing terminals, the transition piece is pressed against the bottom upper surface of the rocker, and the support piece Supported on the bottom lower surface of the rocker; the rocker includes a support plate and two moving contact plates, the two moving contact plates are connected at both ends of the rocker, each moving contact plate has a moving contact, and each outgoing terminal has a static Contacts, each static contact is located on the circular motion trajectory of the moving contact on the same side; there is a first included angle between the plane where the moving contact surface of each moving contact is located and the plane where the support plate is located, and each static contact There is a second included angle between the plane where the static contact surface of the contact is located and the horizontal plane. The first included angle and the second included angle are both greater than 0 degrees and less than 180 degrees. The sum of the rotation angles is 180 degrees. By adopting the present application, the service life of the rocker switch can be extended.

Description

Seesaw switch

Technical Field

The application relates to the technical field of switches, in particular to a seesaw switch.

Background

The seesaw switch is a common wall switch, and the on-off of a circuit can be realized by pressing a key of the seesaw switch.

The seesaw switch mainly comprises a seesaw, a support piece, wire outgoing terminals and the like in structure, the seesaw is located at the top of the support piece, the top of the support piece is used as a fulcrum of seesaw movement, two ends of the seesaw are respectively provided with a movable contact, two movable contacts of the seesaw are respectively corresponding to one wire outgoing terminal, and the top of each wire outgoing terminal is provided with a static contact corresponding to the movable contacts. Based on the structure, the seesaw movement can realize the touch of the movable contact and the fixed contact so as to realize the on-off of the circuit.

When the seesaw switch is used for switching on and off, after the movable contact and the fixed contact are contacted, the movable contact cannot stop moving immediately, the movable contact can stop moving after bouncing on the fixed contact for a plurality of times, and each time the movable contact bounces, an electric arc phenomenon can be caused between the movable contact and the fixed contact, so that the service life of the seesaw switch can be shortened seriously in the past.

Disclosure of Invention

The present application provides a seesaw switch that can overcome problems existing in the related art. The technical scheme is as follows:

according to the application, a seesaw switch is provided, which comprises a seesaw, a transition piece, a support piece and two outlet terminals;

the seesaw, the transition piece and the support piece are all positioned between the two wire outlet terminals, the bottom of the transition piece is tightly pressed on the upper surface of the bottom of the seesaw, and the support piece is supported on the lower surface of the bottom of the seesaw;

the seesaw comprises a supporting plate and two movable contact plates, the two movable contact plates are connected to two ends of the seesaw, a movable contact is arranged at the position, far away from the supporting plate, of each movable contact plate, each wire outgoing terminal is provided with a fixed contact, and each fixed contact is positioned on the circular motion track of the movable contact at the same side;

the movable contact surface of each movable contact is opposite to the static contact surface of the static contact on the same side, a first included angle is formed between the plane where the movable contact surface of each movable contact is located and the plane where the support plate is located, a second included angle is formed between the plane where the static contact surface of each static contact is located and the horizontal plane, the first included angle and the second included angle are both larger than 0 degree and smaller than 180 degrees, and the sum of the first included angle, the second included angle and the rotating angle of the seesaw is 180 degrees.

Optionally, a sum of the first included angle and the rotation angle is greater than or equal to 90 degrees and less than or equal to 120 degrees, and the second included angle is greater than or equal to 60 degrees and less than or equal to 90 degrees.

Optionally, the first included angle is 90 degrees, and the second included angle is greater than 0 degree and smaller than 90 degrees.

Optionally, the surface of each movable contact plate opposite to the transition piece is provided with a convex structure protruding towards the transition piece;

the distance between the protruding structure and the fulcrum of the seesaw is larger than the distance between the farthest sliding position of the transition piece and the fulcrum, so that the transition piece can enable the movable contact and the fixed contact in the adhesion state to be separated forcibly.

Optionally, each movable contact plate is an inclined plate;

the raised structure is formed on a surface of the swash plate opposite the transition piece.

Optionally, each movable contact plate is a bending plate and comprises a first vertical plate, a transverse plate and a second vertical plate which are connected in sequence;

the first vertical plate is connected with the supporting plate, and the movable contact is positioned on the surface of the second vertical plate far away from the transition piece;

the raised structure is formed at the connection of the first vertical plate and the transverse plate.

Optionally, each moving contact is a convex hull structure formed on the surface of the moving contact plate far away from the transition piece by a stamping technology.

Optionally, each outlet terminal comprises an outlet terminal body and a stationary contact plate, and the stationary contact plate is a bending plate and comprises a horizontal part and an inclined part;

the horizontal part is horizontally positioned on one side of the outgoing line terminal body and is opposite to the movable contact plate on the same side;

the inclined part is connected to the end part of the horizontal part far away from the outgoing terminal body, and the static contact is positioned on the surface of the inclined part opposite to the movable contact on the same side;

the joint between the horizontal part and the inclined part has elasticity.

Optionally, the lower surface of the supporting plate is provided with one or more limiting covers, the top of the supporting member is provided with one or more limiting heads, and the limiting heads are located in the limiting covers.

Optionally, the limiting cover is a splayed cover or a spherical cover.

The beneficial effect that technical scheme that this application provided brought includes at least:

in the embodiment of the application, the movable contact and the fixed contact of the seesaw switch are opposite in position, a first included angle is formed between the movable contact surface of the movable contact and the support plate, a second included angle is formed between the fixed contact surface of the fixed contact and the horizontal plane, the first included angle and the second included angle are both larger than 0 degree and smaller than 180 degrees, and the sum of the first included angle, the second included angle and the rotation angle of the seesaw is 180 degrees. Therefore, the plane of the static contact surface of the static contact is inclined relative to the horizontal plane, and the plane of the movable contact surface is inclined relative to the plane of the support plate, so that the speed in the vertical direction can be reduced when the movable contact touches the static contact. And once the speed of the movable contact in the vertical direction when the movable contact touches the fixed contact is reduced, the bounce times of the movable contact relative to the fixed contact in the vertical direction can be reduced, the arc discharge phenomenon between the movable contact and the fixed contact is further weakened, and the service life of the seesaw switch is prolonged.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application. In the drawings:

FIG. 1 is a schematic diagram of a seesaw switch according to an embodiment;

FIG. 2 is a schematic diagram of a seesaw switch according to an embodiment;

FIG. 3 is a schematic structural diagram of a limit cover and a limit head of a seesaw switch according to an embodiment;

FIG. 4 is a schematic diagram of a seesaw switch according to an embodiment;

FIG. 5 is a schematic diagram of a seesaw switch according to an embodiment;

FIG. 6 is a diagram illustrating a touch scenario of moving and stationary contacts of a seesaw switch, according to an embodiment;

FIG. 7 is a schematic diagram of a seesaw switch according to an embodiment;

FIG. 8 is a schematic diagram illustrating a seesaw switch, according to an embodiment;

FIG. 9 is a schematic diagram illustrating a seesaw switch, according to an embodiment;

FIG. 10 is a schematic diagram illustrating a seesaw switch, according to an embodiment;

fig. 11 is a schematic structural view of a seesaw switch according to the embodiment.

Description of the figures

1. A seesaw; 11. a support plate; 111. a limiting cover; 12. a movable touch plate; 121. a raised structure; 122. a first vertical plate; 123. a transverse plate; 124. a second vertical plate; 13. a movable contact; 131. a movable contact surface;

2. a transition piece; 21. a T-shaped shell; 22. marbles; 23. a spring;

3. a support member; 31. a limiting head;

4. an outlet terminal; 41. a stationary contact; 42. an outlet terminal body; 43. a stationary contact plate; 431. a horizontal portion; 432. an inclined portion; 433. a joint;

5. and a line terminal.

With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.

The embodiment of the application provides a seesaw switch, which is a common wall switch, and the on-off of a circuit can be realized by pressing a button of the seesaw switch.

As shown in fig. 1, the seesaw switch mainly includes a seesaw 1, a transition member 2, a support member 3, two outlet terminals 4, and an inlet terminal 5. The seesaw 1, the transition piece 2 and the support piece 3 are located between the two wire outlet terminals 4, the bottom of the transition piece 2 is tightly pressed on the upper surface of the bottom of the seesaw 1, and the top of the support piece 3 is supported on the lower surface of the bottom of the seesaw 1. The transition piece 2 can move at the bottom of the seesaw 1, the transition piece 2 moves, the seesaw 1 can be enabled to do circular motion by taking the top of the support piece 3 as a fulcrum, the end of the seesaw 1 can be in contact with the wire outlet terminal 4 on the same side, the end of the seesaw 1 is in contact with the wire outlet terminal 4, and the switch-on or switch-off of the switch can be achieved. The reason is as follows:

both the seesaw 1 and the support member 3 are made of a conductive material, for example, both are made of copper plates, the support member 3 is fixedly connected with the wire inlet terminal 5, the top of the support member 3 is contacted with the bottom lower surface of the seesaw 1, and the seesaw 1, the support member 3 and the wire inlet terminal 5 are sequentially electrically connected. And the incoming terminal 5 and the two outgoing terminals 4 are connected in the circuit where the seesaw switch is located. As can be seen, the movable contact 13 at the end of the seesaw 1 touches the stationary contact 41 of the outlet terminal 4, so that the seesaw 1, the touched outlet terminal 4, the support 3, and the inlet terminal 5 can be connected, or the seesaw 1, the non-touched outlet terminal 4, the support 3, and the inlet terminal 5 can be disconnected. Therefore, the movable contact 13 of the seesaw 1 touches the fixed contact 41 of the outlet terminal 4, and the switch can be switched on or off.

As can be seen from the above description, in the use of the seesaw switch, the movable contact 13 of the seesaw 1 and the fixed contact 41 of the outlet terminal 4 make multiple contact, and in each contact, because the movable contact 13 of the seesaw 1 has a relatively large speed when falling on the fixed contact 41 of the outlet terminal 4, after the movable contact 13 of the seesaw 1 and the fixed contact 41 of the outlet terminal 4 make contact, the movable contact 13 of the seesaw 1 does not stop on the fixed contact 41 of the outlet terminal 4 immediately, but stops on the fixed contact 41 of the outlet terminal 4 after bouncing on the fixed contact 41 of the outlet terminal 4 for multiple times. The seesaw 1 repeatedly bounces on the outlet terminal 4 for a plurality of times, and the voltage between the movable contact 13 of the seesaw 1 and the fixed contact 41 of the outlet terminal 4 breaks through the air, so that the arc discharge phenomenon is generated. The more the moving contact 13 of the seesaw 1 bounces on the stationary contact 41 of the outlet terminal 4, the more the arcing phenomenon becomes, and the service life of the seesaw switch will be shortened in the long term.

Furthermore, an arc is generated between the movable contact 13 of the seesaw 1 and the fixed contact 41 of the outlet terminal 4, and carbon deposits are generated on the movable contact 13 and the fixed contact 41 for a long time, and the carbon deposits can influence the connection between the movable contact 13 and the fixed contact 41.

Based on the above problems, the present embodiment provides a seesaw switch, which can reduce the number of times that the movable contact 13 bounces on the stationary contact 41, reduce the arcing phenomenon, prolong the service life of the seesaw switch, and also reduce carbon deposition on the surfaces of the movable contact 13 and the stationary contact 41, thereby ensuring good contact between the movable contact 13 and the stationary contact 41.

As shown in fig. 2, the seesaw switch includes a seesaw 1, a transition member 2, a support member 3, and two outlet terminals 4; the seesaw 1, the transition piece 2 and the support piece 3 are all located between the two outlet terminals 4, the bottom of the transition piece 2 is pressed on the upper surface of the bottom of the seesaw 1, and the support piece 3 is supported on the lower surface of the bottom of the seesaw 1.

For example, the seesaw 1 comprises a support plate 11 and two movable contact plates 12, the two movable contact plates 12 are connected to two ends of the seesaw 11, the bottom of the transition piece 2 is pressed against the upper surface of the support plate 11 and can slide along the support plate 11, the top of the support piece 3 is supported on the lower surface of the support plate 11, and the joint of the top of the support piece 3 and the support plate 11 is a fulcrum of the circular motion of the movable contact 12 of the seesaw 1.

Wherein, the bottom of transition piece 2 compresses tightly the upper surface of backup pad 11 to can slide on backup pad 11, the bottom of transition piece 2 slides along backup pad 11, keeps contacting with the upper surface of backup pad 11 all the time.

As shown in fig. 2, the transition piece 2 comprises a T-shaped shell 21, a pin 22 and a spring 23, wherein the vertical shell of the T-shaped shell 21 is provided with a cavity, the spring 23 is fixed in the cavity in a compression mode, the pin 22 is positioned in the cavity and is connected with the spring 23, and the bottom of the pin 22 extends out of the bottom of the cavity to be in contact with the upper surface of the supporting plate 11. Thus, the pins 22 are always kept in contact with the upper surface of the support plate 11 by the elastic force of the springs 23.

In order to limit the freedom of movement of the seesaw 1, as shown in fig. 2, the lower surface of the support plate 11 is provided with one or more limit caps 111, the top of the support member 3 is provided with one or more limit heads 31, the limit caps 111 and the limit heads 31 correspond one-to-one, the limit caps 111 and the limit heads 31 are matched, and the limit heads 31 are positioned in the limit caps 111. The limiting head 31 is positioned in the limiting cover 111 and can limit the seesaw 1 to move left and right.

As shown in FIG. 1, in order to further limit the freedom of movement of the seesaw 1, the number of the limit caps 111 and the limit heads 31 is at least two. As shown in fig. 1, the number of the limiting caps 111 and the limiting heads 31 is two, the supporting plate 11 has a certain width, the supporting member 3 has a certain length, two limiting caps 111 are arranged on the lower surface of the supporting plate 11 along the width direction, two limiting heads 31 are arranged on the top of the supporting member 3 along the length direction, and the positions of the two limiting caps 111 are opposite to the positions of the two limiting heads 31, so that each limiting head 31 can be located in one limiting cap 111.

The seesaw 1 and the support member 3 can be limited from turning over along the length direction of the support member 3 by the matching of the two limit covers 111 and the two limit heads 31.

As shown in figure 1, the seesaw 1 is limited by the transition piece 1 and the support piece 3 in the vertical direction, the seesaw 1 is prevented from moving up and down, the seesaw 1 is prevented from moving left and right in the horizontal direction due to the matching of the limiting covers 111 and the limiting heads 31, and the seesaw 1 is prevented from moving back and forth due to the matching of the limiting covers 111 and the limiting heads 31 in the front and back directions. So that the seesaw 1 can stably make a circular motion around the fulcrum.

As shown in fig. 1, the height direction along the support plate 3 can be taken as a vertical direction, which is also a z-axis direction; the length direction along the support plate 3 is taken as the front-back direction, which is also the y-axis direction; the direction perpendicular to the support plate 3 is taken as the horizontal direction, which is also the x-axis direction.

As shown in fig. 2, the limiting cover 111 may be a splayed cover, the inner surface of the limiting cover 111 is an arc-shaped curved surface, and the outer surface of the limiting head 31 is also an arc-shaped curved surface, so that the seesaw 1 can make a circular motion.

The number of the position-limiting covers 111 can be one or more, and the number of the position-limiting heads 31 can also be one or more. In the solution of a limiting cover 111 and a limiting head 31, as shown in fig. 1, the length of the limiting cover 111 along the y-axis can be relatively long, the limiting head 31 also has a certain length along the y-axis, and the limiting head 31 is located in the limiting cover 111, so that the seesaw 1 can be limited from being turned in the y-axis direction.

In the solutions of the plurality of limiting covers 111 and the limiting head 31, as shown in fig. 1, the plurality of limiting covers 111 are arranged on the lower surface of the supporting plate 11 along the y-axis direction, one limiting head 31 has a length along the y-axis direction, and the length of the limiting head 31 is greater than or equal to the total length of the plurality of limiting covers 111 in the y-axis direction, so that the plurality of limiting covers 111 can cover the limiting head 31, and the seesaw 1 can be well limited to perform the flipping motion in the y-axis direction.

Of course, in the solution of the plurality of limiting caps 111 and the plurality of limiting heads 31, the plurality of limiting caps 111 are disposed on the lower surface of the supporting plate 11 along the y-axis direction, the plurality of limiting heads 31 are disposed on the top of the supporting member 3 along the y-axis direction, and each limiting head 31 is located in each limiting cap 111, so that the seesaw 1 can be well limited from being turned in the y-axis direction.

In this embodiment, the number of the limiting covers 111 and the limiting heads 31 is not limited, and technicians can flexibly select the limiting covers and the limiting heads according to actual situations.

As shown in fig. 3, the position-limiting cover 111 is a spherical cover, and the position-limiting head 31 may also be a structural schematic diagram of a spherical structure. The limiting covers 111 and the limiting heads 31 of the structure can limit the seesaw 1 to move left and right in the horizontal direction and move up and down in the vertical direction, and correspondingly, in the structure, the number of the limiting covers 111 is at least two, and the number of the limiting heads 31 is at least two in order to limit the seesaw 1 to turn in the front and back directions.

The diameter of the spherical center of the limiting cover 111 of the spherical cover is slightly larger than that of the spherical center of the limiting head 31, the diameter of the cover opening of the limiting cover 111 is slightly smaller than that of the spherical center of the limiting head 31, and the limiting head 31 can be installed in the limiting cover 111 in an interference manner.

Or the limiting cover 111 is a bracket-shaped cover, the limiting heads 31 are arranged in the limiting cover 111 in an interference manner, the number of the limiting covers 111 is one or more, and the number of the limiting heads 31 is one or more. Wherein, the scheme that the limiting cover 111 and the limiting head 31 are both one, the scheme that the limiting cover 111 is multiple, the scheme that the limiting head 31 is one, and the scheme that the limiting cover 111 and the limiting head 31 are multiple can be referred to the above, and the description is omitted here.

The specific shape of the limiting cover 111 is not limited in this embodiment, and technicians can flexibly select the limiting cover according to actual conditions.

As shown in fig. 1, the supporting member 3 may be a strip-shaped plate, the supporting member 3 is close to the end portion and is fixedly connected to the incoming line terminal 5, the supporting member 3 is located between the two outgoing line terminals 4, the top of the supporting member 3 at the position corresponding to the outgoing line terminal 4 is folded to form the limiting head 31, the outer surface of the limiting head 31 formed by folding is an arc-shaped curved surface, so as to be matched with the arc-shaped curved surface of the inner surface of the limiting cover 111, and the seesaw 1 is convenient to perform circular motion.

In the embodiment, the specific shapes of the limiting cover 111 and the limiting head 31 are not limited, the matching of the limiting cover 111 and the limiting head 31 can be realized, the seesaw 1 is limited to move left and right in the horizontal direction, and the seesaw 1 can be turned in the front and back directions.

As shown in fig. 2, although the pins 22 of the transition piece 2 are kept pressed against the upper surface of the supporting plate 11, since the pins 22 can move up and down under the expansion and contraction of the springs 23, the bouncing times of the seesaw 1 are increased by the speed of the seesaw 1 in the vertical direction, and in order to reduce the bouncing times of the seesaw 1, the speed of the movable contact 13 in the vertical direction is mainly reduced when the movable contact 13 and the fixed contact 41 touch each other.

The specific structure of the seesaw 1 and the implementation structure for reducing the speed of the movable contact 13 in the vertical direction when the movable contact 12 and the stationary contact 41 touch will be described below.

As shown in fig. 2, two movable contact plates 12 are connected to both ends of the support plate 11, each movable contact plate 12 has a movable contact 13 at a position away from the support plate 11, and each movable contact 13 has a movable contact surface 131 at a position away from the transition piece 2.

Wherein, as shown in fig. 2, the movable contact surface 131 is a surface far from the transition piece 2, and as shown in fig. 4, the movable contact surface 131 is a tangent plane at a position far from the transition piece 2.

As shown in fig. 2, each outlet terminal 4 has a fixed contact 41, and each fixed contact 41 is located on the circular motion track of the movable contact 13 on the same side, and the position of each fixed contact 41 adjacent to the movable contact 13 has a fixed contact surface 411, wherein the fixed contact surface 411 may be the surface adjacent to the movable contact 13 as shown in fig. 2, or may be a tangent plane at the position adjacent to the movable contact 13.

In this embodiment, the specific forming manner of the movable contact surface 131 of the movable contact 13 and the specific forming manner of the stationary contact surface 411 of the stationary contact 41 are not limited.

Each of the fixed contacts 41 is located on the circular motion track of the movable contact 13 on the same side, so that the two movable contacts 13 of the seesaw 1 can touch the fixed contacts 41 on the same side in the circular motion around the fulcrum.

As shown in FIG. 2, the movable contact surface 131 of each movable contact 13 is opposite to the stationary contact surface 411 of the stationary contact 41 on the same side, so that when the movable contact 13 touches the stationary contact 41 during the circular motion of the seesaw 1, as shown in FIG. 5, the movable contact surface 131 of the movable contact 13 can be overlapped with the stationary contact surface 411 of the stationary contact 41 on the same side.

With continued reference to fig. 2, a first included angle is formed between the plane of the movable contact surface 131 of each movable contact 13 and the plane of the support plate 11, a second included angle is formed between the plane of the stationary contact surface 411 of each stationary contact 41 and the horizontal plane, the first included angle and the second included angle are both greater than 0 degree and smaller than 180 degrees, and the sum of the first included angle, the second included angle and the rotation angle of the seesaw 1 is 180 degrees.

In fig. 2, α represents a first angle, β represents a second angle, and γ represents a rotation angle at which the seesaw 1 performs a circular motion when the movable contact surface 131 and the stationary contact surface 411 are overlapped.

In order to incline the static contact surface 411 with respect to the horizontal plane, β is between 0 and 180 degrees, and does not include 0 degree and 180 degrees. When the movable contact 13 touches the stationary contact 41, as shown in fig. 5, the movable contact surface 131 and the stationary contact surface 411 are overlapped, so the sum of α, β, and γ is 180 degrees, and then α takes a value from 180 degrees to 0 degrees, and does not include 180 degrees and 0 degrees.

As shown in fig. 5, the plane of the fixed contact surface 411 is inclined with respect to the horizontal plane, and the plane of the movable contact surface 131 is inclined with respect to the plane of the support plate 11, so that the speed in the vertical direction when the movable contact 13 touches the fixed contact 41 can be reduced. Once the vertical speed of the moving contact 13 contacting the fixed contact 41 is reduced, the bounce times of the moving contact 13 relative to the fixed contact 41 can be reduced, and the arc discharge phenomenon between the moving contact 13 and the fixed contact 41 is further weakened.

As shown in fig. 6(a), the included angle between the sheet surface of the stationary contact surface 411 and the horizontal plane is 0 degree, and then the velocity of the movable contact 13 in the vertical direction when the movable contact 13 touches the stationary contact 41 is v. As shown in fig. 6(b), when the movable contact 13 touches the fixed contact 41, the speed of the movable contact 13 in the vertical direction is v1 ═ v · sin θ. Under the same condition, that is, under the condition that the speed of the movable contact 13 just touching the stationary contact 41 is equal, the speed of the movable contact 13 in the vertical direction is smaller in the structure shown in fig. 6(b) than in the structure shown in fig. 6 (a).

As shown in fig. 6(b), when the movable contact 13 and the fixed contact 41 touch each other, the velocity v2 in the horizontal direction becomes v · cos θ, and the v2 is lowered to 0 by the engagement restriction action of the stopper cover 111 and the stopper head 31 shown in fig. 5, thereby preventing the seesaw 1 from bouncing left and right in the horizontal direction.

As shown in fig. 5, when the movable contact 13 touches the fixed contact 41, on the basis that the limiting head 31 is located in the limiting cover 111 to limit the seesaw 1 to move left and right in the horizontal direction, the speed of the movable contact 13 in the vertical direction is reduced, and the bouncing frequency of the movable contact 13 on the fixed contact 41 can be further reduced, so that the arcing phenomenon between the movable contact 13 and the fixed contact 41 can be weakened, and the service life of the seesaw switch can be prolonged.

Moreover, because an included angle is formed between the plane where the static contact surface 411 of the static contact 41 is located and the horizontal plane, the static contact surface is in an inclined state, and an included angle is formed between the plane where the movable contact surface 131 of the movable contact 13 is located and the support plate 11, the carbon deposits on the static contact surface 411 and the movable contact surface 131 are easy to slide down, so that the carbon deposits on the static contact surface 411 and the movable contact surface 131 can be reduced, and the good contact between the static contact surface 411 and the movable contact surface 131 is ensured.

Regarding the inclination angle of the movable contact surface 131 with respect to the supporting plate 11 and the inclination angle of the stationary contact surface 411 with respect to the horizontal plane, a skilled person can select an appropriate angle according to the actual situation so as to realize the principle that the number of bounces of the movable contact 13 on the stationary contact 41 is minimized, and the carbon deposit is most easily fallen by the movable contact surface 131 and the stationary contact surface 411.

For example, the sum of the first angle α and the rotation angle γ is equal to or greater than 90 degrees and equal to or less than 120 degrees, and the second angle β is equal to or greater than 60 degrees and equal to or less than 90 degrees.

Illustratively, as shown in fig. 5, when the second included angle β is 60 degrees, the sum of the first included angle α and the rotation angle γ is 120 degrees. As shown in fig. 7, when the second included angle β is 90 degrees, the sum of the first included angle α and the rotation angle γ is 90 degrees.

For another example, as shown in fig. 8, the first included angle α is 90 degrees, the sum of the second included angle β and the rotation angle γ is 90 degrees, and the second included angle β is greater than 0 degree and smaller than 90 degrees.

A technician may select the first included angle α, the second included angle β, and the rotation angle γ according to the parameters that when the movable contact 13 and the stationary contact 41 are in contact, the bounce frequency of the movable contact 13 is the smallest, the carbon deposits on the movable contact surface 131 and the stationary contact surface 411 are most likely to slide, and the farthest distance between the movable contact 13 and the stationary contact 41 satisfies 3 mm or more.

In order to further reduce the number of bounces of the moving contact 13, correspondingly, as shown in fig. 8, each outlet terminal 4 includes an outlet terminal body 42 and a stationary contact plate 43, and the stationary contact plate 43 is a bent plate including a horizontal portion 431 and an inclined portion 432; the horizontal part 431 is horizontally positioned at one side of the outgoing terminal body 42 and is opposite to the position of the movable contact plate 12 at the same side; the inclined part 432 is connected to the end part of the horizontal part 431 far from the outlet terminal body 42, and the fixed contact 41 is positioned on the surface of the inclined part 432 opposite to the movable contact 13 on the same side; a connection 433 between the horizontal portion 431 and the inclined portion 432 has elasticity.

The stationary contact plate 43 may be made of metal, for example, a copper sheet.

As shown in fig. 8, the stationary contact plate 43 is structurally bendable and includes a horizontal portion 431 for fixedly connecting with the outlet terminal body 42 and an inclined portion 432 for carrying the stationary contact 41, for example, the surface of the inclined portion 432 opposite to the movable contact 13 on the same side has the stationary contact 41.

As described above, the plane of the stationary contact surface 411 of the stationary contact 41 has the second included angle with the horizontal plane, and the inclined portion 432 may be parallel to the stationary contact surface 411, so the included angle between the plane of the inclined portion 432 and the horizontal plane may also be the second included angle.

The joint 433 between the horizontal portion 431 and the inclined portion 432 has elasticity, and the elasticity is derived from the ductility of the metal material of the stationary contact plate 43 and the bending structure of the stationary contact plate 43.

In this way, since the connection 433 between the horizontal portion 431 and the inclined portion 432 has elasticity, when the movable contact plate 12 touches the inclined portion 432, the movable contact plate 12 does not bounce from the inclined portion 432 immediately, but continues to make a circular motion with the connection 433 as a dot until the velocity becomes zero, and bounces under the push of the inclined portion 432. It can be seen that the contact between the movable contact 12 and the inclined portion 432 is flexible, and the speed is consumed when the movable contact 12 moves circularly towards the outlet terminal body 42 on the same side, and once the speed is reduced, the bounce frequency of the movable contact 13 on the fixed contact 41 can also be reduced, so as to weaken the arc phenomenon between the movable contact 13 and the fixed contact 41.

The adhesion fault is a common failure mode of the switch component, namely a fault that the movable contact 13 and the fixed contact 41 are adhered and cannot be separated, and in order to reduce or even avoid the adhesion fault of the seesaw switch, the corresponding implementation structure can be as follows:

as shown in fig. 9, the surface of each movable contact plate 12 opposite to the transition piece 2 has a convex structure 121 convex to the transition piece 2; the distance between the protruding structure 121 and the fulcrum of the seesaw 1 is larger than the distance between the farthest sliding position of the transition piece 2 and the fulcrum, so that the transition piece 2 can force the movable contact 13 and the fixed contact 41 to be separated in the adhesion state.

Wherein, as shown in fig. 9, the movable contact plate 12 may be a sloping plate that is inclined with respect to the support plate 11, and the protrusion structure 121 may be formed on a surface of the sloping plate that is opposite to the transition piece 2.

Position O in fig. 9 is the fulcrum of the circular movement of the seesaw 1, position a is the farthest position where the transition piece 2 slides on the support plate 11, and position B is the position where the protruding structure 121 first contacts the transition piece 2. The distance b between the line segments OB is greater than the distance a between the line segments OA. Thus, when the movable contact 13 and the fixed contact 41 are in adhesion failure, the transition piece 2 is in contact with the position B of the protruding structure 121, acting force is applied to the seesaw 1 at the position B, and obviously, the acting force with the same magnitude is larger than that of the acting force applied to the seesaw 1 at the position A, so that the moment applied to the seesaw 1 by the transition piece 2 is increased, and the movable contact 13 and the fixed contact 41 can be forcibly separated.

Alternatively, as shown in fig. 10, each movable contact plate 12 may be a bent plate including a first vertical plate 122, a transverse plate 123 and a second vertical plate 124 connected in sequence; the first vertical plate 122 is connected with the support plate 11, and the movable contact 13 is positioned on the surface of the second vertical plate 124 far away from the transition piece 2; the raised structure 121 is formed at the junction of the first riser 122 and the cross plate 123.

As shown in fig. 10, the second vertical plate 124 is used as a carrier of the movable contact 13, a plane where the movable contact surface 131 of the movable contact 13 is located and a plane where the support plate 11 is located have a first included angle, and a plane where the second vertical plate 124 is located may be parallel to the plane where the movable contact surface 131 is located, so that the included angle between the second vertical plate 123 and the support plate 11 may also be the first included angle.

As shown in fig. 10, the first riser 122 is adapted to be connected to the support plate 11 and the cross plate 123 is adapted to form the raised structure 121. Illustratively, the distance between two second risers 124 is greater than the distance between two first risers 122, the cross plate 123 connected between the first risers 122 and the second risers 124, and the raised structure 121 can be formed at the connection between the cross plate 123 and the first risers 122.

In the movable contact plate 12 with the above structure, the protruding structure 121 can be formed, as shown in fig. 10, a distance B between the fulcrum O and a position B of the protruding structure 121, which is the position where the fulcrum O first touches the transition piece 2, is greater than a distance a between the fulcrum O and a farthest sliding position a of the transition piece 2 on the support plate 11, that is, a length B of the line OB is greater than a length a of the line OA. Further, when the movable contact 13 and the fixed contact 41 are stuck, the transition piece 2 can press the seesaw 1 through the position B, and the movable contact 13 and the fixed contact 41 are forcibly separated.

The forming manner and the forming position of the protruding structure 121 are not specifically limited in this embodiment, and the forced separation function can be realized, that is, when the movable contact 13 and the stationary contact 41 are adhered, the transition piece 2 can use the protruding structure 121 as an acting point to forcibly separate the movable contact 13 and the stationary contact 41.

In one example, the moving contact 13 and the fixed contact 41 are both electrically conductive parts that make electrical connection, for example, may be conductive bodies coated with silver layers, for example, may be formed on the outlet terminal body 42 and the moving contact plate 12, respectively, in the manner shown in fig. 9.

For another example, as shown in fig. 11, each of the movable contacts 13 is a convex hull structure formed on the surface of the movable contact plate 12 away from the transition piece 2 by a stamping technique.

For example, the movable contact 13 may be obtained by forming a convex hull structure on the surface of the movable contact plate 12 away from the transition piece 2 by a stamping technique, and then coating the outer surface of the convex hull structure with a silver layer. Similarly, the stationary contact 41 may have a convex hull structure formed on the surface of the inclined portion 432 of the stationary contact plate 43 by a press-working technique.

Compared with the convex structure formed by welding or riveting, the convex hull structure formed by the stamping technology can avoid air gaps generated by welding or riveting, and further can improve good contact between the movable contact 13 and the fixed contact 41.

Based on the above structure, referring to fig. 10, since the movable contact surface 131 of the movable contact 13 has a first angle with the supporting plate 11, and the stationary contact surface 411 of the stationary contact 41 has a second angle with the horizontal plane, the stationary contact surface 411 is inclined with respect to the horizontal plane, and when the movable contact 13 touches the stationary contact 41, the movable contact surface 131 is also inclined with respect to the horizontal plane. Thus, as can be seen with reference to fig. 6, when the movable contact 13 touches the stationary contact 41, the speed of the movable contact 13 in the vertical direction is significantly reduced as compared to when the movable contact 13 falls vertically on the stationary contact 41. Wherein, the moving contact 13 is vertically dropped on the fixed contact 41, the speed of the moving contact 13 in the vertical direction is v, and the moving contact 13 is dropped on the fixed contact 41 as shown in fig. 6(b), the speed of the moving contact 13 in the vertical direction is v · sin θ, which is significantly smaller than v. And the limit of the limit cover 111 and the limit head 31 is matched, so that the contact frequency of the movable contact 13 on the fixed contact 41 can be reduced, the arc-drawing phenomenon between the movable contact 13 and the fixed contact 41 is weakened, and the service life of the seesaw switch is prolonged.

In addition, because the stationary contact surface 411 of the stationary contact 41 has a second angle with the horizontal plane, the stationary contact surface 411 is inclined with respect to the horizontal plane, and the movable contact surface 131 is also inclined with respect to the horizontal plane when the movable contact 13 touches the stationary contact 41. This makes it easier for carbon deposits on the moving contact surface 131 and the stationary contact surface 411 to slip off, maintains the cleanness of the surfaces of the moving contact surface 131 and the stationary contact surface 411, and improves the contact integrity of the moving contact surface 131 and the stationary contact surface 411.

In addition, because the stationary contact plate 43 is a bent plate, and the bent connection portion 433 has elasticity, the contact between the movable contact plate 12 and the stationary contact plate 43 is flexible, so that the bounce speed of the movable contact plate 12 when rebounding from the stationary contact plate 43 is reduced, and once the bounce speed is reduced, the bounce frequency of the movable contact plate 12 on the stationary contact plate 43 can be reduced, the arc-drawing phenomenon between the movable contact 13 and the stationary contact 41 is further weakened, and the service life of the seesaw switch is prolonged.

In addition, because the movable contact plate 12 comprises the first vertical plate 122, the transverse plate 123 and the second vertical plate 124, a convex structure 121 protruding towards the transition piece 2 can be formed at the connecting position between the first vertical plate 122 and the transverse plate 123, so that when an adhesion fault occurs between the movable contact 13 and the fixed contact 41, the transition piece 2 can apply acting force to the seesaw 1 at the convex structure 121, and the movable contact 13 and the fixed contact 41 are forcibly separated.

In addition, because the movable contact 13 is a convex hull structure formed on the surface of the movable contact plate 12 by a stamping technology, rather than a riveting structure, the phenomenon of poor contact caused by air gaps inside the movable contact 13 can be reduced or even avoided. For example, if the movable contact 13 is formed such that a riveted structure is first formed on the surface of the movable contact plate 12 by riveting and then a silver layer is welded to the riveted structure, two times of welding are performed, the movable contact 13 has a greater probability of having a void. If the movable contact 13 is formed by first forming a convex hull structure on the surface of the movable contact plate 12 by a stamping technique and then welding a silver layer on the surface of the convex hull structure, the probability of the movable contact 13 having a gap is smaller.

In the embodiment of the application, the movable contact and the fixed contact of the seesaw switch are opposite in position, a first included angle is formed between the movable contact surface of the movable contact and the support plate, a second included angle is formed between the fixed contact surface of the fixed contact and the horizontal plane, the first included angle and the second included angle are both larger than 0 degree and smaller than 180 degrees, and the sum of the first included angle, the second included angle and the rotation angle of the seesaw is 180 degrees. Therefore, the plane of the static contact surface of the static contact is inclined relative to the horizontal plane, and the plane of the movable contact surface is inclined relative to the plane of the support plate, so that the speed in the vertical direction can be reduced when the movable contact touches the static contact. Once the speed of the movable contact in the vertical direction when the movable contact touches the fixed contact is reduced, the bounce times of the movable contact relative to the fixed contact in the vertical direction can be reduced, and the arc discharge phenomenon between the movable contact and the fixed contact is further weakened.

It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.

Claims

1. A rocker switch, characterized in that the rocker switch comprises a rocker (1), a transition piece (2), a support piece (3) and two outgoing terminals (4);

The rocker (1), the transition piece (2) and the support piece (3) are all located between the two outgoing terminals (4), and the bottom of the transition piece (2) is pressed against the the bottom upper surface of the rocker (1), and the support member (3) is supported on the bottom bottom surface of the rocker (1);

The rocker (1) includes a support plate (11) and two moving contact plates (12), the two moving contact plates (12) are connected at both ends of the rocker (11), and each moving contact plate (12) The plate (12) has a movable contact (13) at a position away from the support plate (11), each outgoing terminal (4) has a static contact (41), and each static contact (41) is located on the same side on the circular motion trajectory of the movable contact (13);

The position of the movable contact surface (131) of each movable contact (13) is opposite to that of the stationary contact surface (411) of the stationary contact (41) on the same side, and the movable contact surface ( There is a first included angle between the plane where 131) is located and the plane where the support plate (11) is located, and a second clamp is provided between the plane where the static contact surface (411) of each static contact (41) is located and the horizontal plane angle, the first included angle and the second included angle are both greater than 0 degrees and less than 180 degrees, and the difference between the first included angle, the second included angle and the rotation angle of the rocker (1) and is 180 degrees.

2. The rocker switch according to claim 1, wherein the sum of the first included angle and the rotation angle is greater than or equal to 90 degrees and less than or equal to 120 degrees, and the second included angle is greater than or equal to 60 degrees and less than or equal to 90 degrees.

3 . The rocker switch according to claim 1 , wherein the first included angle is 90 degrees, and the second included angle is greater than 0 degrees and less than 90 degrees. 4 .

4. The rocker switch according to claim 1, characterized in that, the surface of each movable contact plate (12) opposite to the transition piece (2) has a protrusion protruding toward the transition piece (2) structure(121);

The distance between the raised structure (121) and the fulcrum of the rocker (1) is greater than the distance between the farthest sliding position of the transition piece (2) and the fulcrum, so that the transition The component (2) can force the movable contact (13) and the stationary contact (41) in a sticking state to separate.

5. The rocker switch according to claim 4, wherein each movable contact plate (12) is an inclined plate;

The protruding structure (121) is formed on the surface of the inclined plate opposite to the transition piece (2).

6 . The rocker switch according to claim 4 , wherein each movable contact plate ( 12 ) is a bent plate, comprising a first vertical plate ( 122 ), a horizontal plate ( 123 ) and a second vertical plate ( 122 ) connected in sequence. riser (124);

The first riser (122) is connected to the support plate (11), and the movable contact (13) is located on the surface of the second riser (124) away from the transition piece (2);

The protruding structure (121) is formed at the connection of the first vertical plate (122) and the horizontal plate (123).

7. The rocker switch according to claim 1, wherein each movable contact (13) is formed on the surface of the movable contact plate (12) away from the transition piece (2) by stamping technology Convex hull structure.

8. The rocker switch according to claim 1, wherein each outgoing terminal (4) comprises an outgoing terminal body (42) and a static contact plate (43), wherein the static contact plate (43) is bent a plate, comprising a horizontal portion (431) and an inclined portion (432);

The horizontal portion (431) is horizontally located on one side of the outlet terminal body (42), and is opposite to the position of the movable contact board (12) on the same side;

The inclined portion (432) is connected to the end of the horizontal portion (431) away from the outlet terminal body (42), and the static contact (41) is located on the same side of the inclined portion (432). the surface opposite to the movable contact (13);

The connection (433) between the horizontal part (431) and the inclined part (432) has elasticity.

9. The rocker switch according to any one of claims 1 to 7, wherein the lower surface of the support plate (11) has one or more limit covers (111), and the support member (3) There is one or more limit heads (31) on the top of the device, and the limit heads (31) are located in the limit cover (111).

10 . The rocker switch according to claim 8 , wherein the limiting cover ( 111 ) is a figure-eight cover or a spherical cover. 11 .