CN115223816A

CN115223816A - Rockers and Rocker Switches

Info

Publication number: CN115223816A
Application number: CN202210855317.8A
Authority: CN
Inventors: 彭美南; 王也; 姚思捷; 马腾; 陈旭波; 胡友才; 龚光辉
Original assignee: Ningbo Gongniu Electric Appliances Co Ltd
Current assignee: Ningbo Gongniu Electric Appliances Co Ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-10-21

Abstract

The invention discloses a rocker and a rocker switch, and belongs to the technical field of electricity. This wane includes: the movable contact comprises a connecting part, an arm part, a supporting part and a movable contact, wherein the arm part comprises a first arm section and a second arm section which are connected; the supporting part is connected to the bottom of the connecting part, one end of the first arm section, which is far away from the second arm section, is connected to one side of the connecting part, the first arm section is inclined upwards relative to the connecting part, and the second arm section is arranged obliquely relative to the first arm section, so that the first end of the second arm section, which is far away from the first arm section, is positioned below the second end of the second arm section, which is connected with the first arm section; the movable contact is connected to the second arm section, and a first included angle is formed between the movable contact surface of the movable contact and the horizontal direction under the contact state of the movable contact and the corresponding fixed contact. This wane has improved the contact pressure between movable contact and the stationary contact through the simple structure that changes the arm and the arrangement of movable contact above that, has effectively improved the circular telegram performance of wane switch under the prerequisite of guaranteeing the security, and has avoided making great change to the structure of wane switch.

Description

Rocker and rocker switch

Technical Field

The invention relates to the technical field of electricity, in particular to a rocker and a rocker switch.

Background

A rocker switch, also known as a seesaw switch, is a current on-off device, and a movable contact and a stationary contact can be driven to be in contact with or separated from each other by pressing a panel of the rocker switch, so that a circuit is switched on and off.

In the related art, a rocker switch includes: the rocker is connected with a movable contact, the outgoing terminal assembly is connected with a static contact, and the supporting piece is used for supporting the rocker and allowing the rocker to swing, wherein the rocker swings to further drive the movable contact to be in contact with or separate from the corresponding static contact, and the movable contact is horizontally arranged when in contact with the static contact, so that the contact movement or the separation movement between the contacts is vertical to the vertical.

However, with the structural design of the rocker switch, as the number of dialing times increases, the contact effect between the movable contact and the fixed contact becomes worse, and the power-on performance of the switch is further affected.

Disclosure of Invention

In view of this, the present invention provides a rocker and a rocker switch, which can solve the technical problem in the related art that the contact effect of a moving contact and a stationary contact is poor under the condition of frequent dialing.

Specifically, the method comprises the following technical scheme:

in one aspect, a rocker is provided, the rocker comprising: the movable contact comprises a connecting part, an arm part, a supporting part and a movable contact, wherein the arm part comprises a first arm section and a second arm section which are connected;

the supporting part is connected to the bottom of the connecting part, one end of the first arm section, which is far away from the second arm section, is connected to one side of the connecting part, the first arm section is inclined upwards relative to the connecting part, and the second arm section is arranged obliquely relative to the first arm section, so that the first end of the second arm section, which is far away from the first arm section, is positioned below the second end of the second arm section, which is connected with the first arm section;

the movable contact is connected to the second arm section, and the movable contact is configured in a manner that a first included angle theta 1 is formed between the movable contact surface of the movable contact and the horizontal direction under the contact state of the movable contact and the corresponding fixed contact.

In some possible implementations, the first included angle θ 1 is 5 ° to 55 °.

In some possible implementations, a second included angle is formed between the second arm section and the first arm section, and the second included angle is 10 ° to 160 °.

In some possible implementations, the arm is provided as one;

or,

the arm portions are provided as two symmetrically arranged at both sides of the connecting portion.

In another aspect, there is provided a rocker switch comprising any of the above-described rockers.

In some possible implementations, the rocker switch further comprises: the wire inlet terminal component and the wire outlet terminal component are arranged on the base;

the incoming line terminal assembly comprises a supporting piece, the supporting piece is movably connected with the supporting part of the rocker so as to allow the rocker to swing, the outgoing line terminal assembly comprises a static contact, and the static contact is used for being in contact with the corresponding movable contact;

the stationary contact surface of the stationary contact is arranged obliquely with respect to the horizontal direction.

In some possible implementations, a third included angle is formed between a static contact surface of the static contact and the horizontal direction, and the third included angle is the same as the first included angle θ 1.

In some possible implementations, the outlet terminal assembly further includes: the conductive connecting piece comprises a first connecting section and a second connecting section which are connected, the end part of the first connecting section, which is far away from the second connecting section, is connected to the wire outlet terminal, and the end part of the second connecting section, which is far away from the first connecting section, is connected to the static contact;

the second connecting section is arranged obliquely with respect to the horizontal direction.

In some possible implementations, the movable contacts are located above the respective stationary contacts, which are located on an inclined surface of the second connection section facing away from the rocker;

or,

the movable contacts are located below the corresponding stationary contacts located on an inclined surface of the second connection section near the rocker.

In some possible implementations, the rocker switch is a single pole single throw switch or a double pole single throw switch.

The technical scheme provided by the embodiment of the invention at least has the following beneficial effects:

according to the rocker provided by the embodiment of the invention, the structure of the arm part and the position arrangement of the movable contact are improved, so that the movable contact is obliquely and downwards arranged relative to the first arm section, and thus, when the rocker swings to the state that the movable contact is contacted with the fixed contact in the rocker switch, a first included angle theta 1 is formed between the movable contact surface of the movable contact and the horizontal direction. So set up, on the one hand, can promote the contact pressure between movable contact and the stationary contact, and then improve the circular telegram performance of switch. On the other hand, the seesaw in the flipped state is adapted to generate an eccentric displacement with oxidation and ablation of the contact surface, so that the contact positions of the movable contact and the stationary contact are changed, and thus, the movable contact and the stationary contact show good electrical contact at the new contact positions. On the other hand, the embodiment of the invention is different from the traditional direct pull-type separation, and based on the structure of the wane and the inclined arrangement of the movable contact, the movable contact and the fixed contact are separated to generate tiny local sliding friction, so that oxides generated on the contact surfaces of the movable contact and the fixed contact are rubbed to fall off, the self-cleaning of the contact is realized, and the electric contact performance between the movable contact and the fixed contact is further improved. Therefore, according to the rocker provided by the embodiment of the invention, the structure of the arm part and the arrangement of the movable contact on the arm part are simply changed, so that the power-on performance of the rocker switch is effectively improved on the premise of ensuring the safety, and the structure of the rocker switch is prevented from being greatly changed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an exemplary rocker according to an embodiment of the present invention;

fig. 2 is a schematic partial structural view of an exemplary rocker in a state where a moving contact and a stationary contact are in contact according to an embodiment of the present invention;

fig. 3 is a schematic diagram illustrating an operation state of an exemplary rocker in a rocker switch according to an embodiment of the present invention;

fig. 4 is a schematic view illustrating an operation state of a rocker in a rocker switch according to the related art;

fig. 5 is a diagram illustrating a stress state analysis of an exemplary rocker during operation according to an embodiment of the present invention;

fig. 6 is a diagram illustrating stress states of an exemplary rocker provided in an embodiment of the present invention and a rocker provided in a related art during a working process;

FIG. 7 is a schematic diagram of the contact state of the moving contact and the fixed contact in the ablation continuously deepened state according to the embodiment of the invention;

fig. 8 is an assembled view of an exemplary rocker switch provided in accordance with an embodiment of the present invention;

fig. 9 is an exploded view of an exemplary rocker switch provided by an embodiment of the present invention;

fig. 10 is a cross-sectional view of the rocker switch shown in fig. 9;

fig. 11 is a schematic diagram of the configuration of the outlet terminal assembly involved in the rocker switch of fig. 9;

fig. 12 is a cross-sectional view of another exemplary rocker switch provided by an embodiment of the present invention.

The reference numerals denote:

100. a seesaw;

1. a connecting portion; 2. an arm portion; 21. a first arm segment; 22. a second arm segment;

3. a support portion; 30. a swing groove; 4. a movable contact; 40. a movable contact surface;

200. a panel;

300. a base assembly;

301. a base; 302. a fixed mount; 303. pressing a piece;

400. a wire inlet terminal assembly; 401. a support member;

500. a wire outlet terminal assembly; 501. a stationary contact; 5010. a static contact surface;

502. a conductive connection member;

5021. a first connection section; 5022. a second connection section; 5023. a third connection section;

503. an outlet terminal;

600. a transition piece;

700. an bullet assembly; 701. marbles; 702. a spring.

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

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Reference to orientation terms such as "upper", "lower", "side", etc. in the embodiments of the present application are generally made with respect to the relative relationships of the orientations shown in fig. 10-11, and these orientation terms are used merely for the purpose of describing the structures and the relationships between the structures more clearly and are not intended to describe absolute orientations. When the product is placed in different positions, the orientation may change, for example, "up" and "down" may be interchanged.

In the rocker switch according to the embodiment of the present invention, the orientation of the panel is defined as "up" and the orientation of the terminal assembly is defined as "down", and it is considered that the respective components inside the rocker switch are sequentially arranged in the vertical direction. The assembly state of the rocker switch is taken as a reference, and the horizontal direction of the horizontal direction finger according to the embodiment of the present invention corresponds to the horizontal plane in the assembly state, for example, the rocker switch is a wall switch and is assembled on a wall, so that a flat wall can be considered as extending along the horizontal direction, and the plane where the flat wall is located is the horizontal plane.

Unless defined otherwise, all technical terms used in the examples of the present application have the same meaning as commonly understood by one of ordinary skill in the art. In order to make the technical solutions and advantages of the present application clearer, the following will describe the embodiments of the present application in further detail with reference to the accompanying drawings.

In the related art, a rocker switch includes: the rocker is connected with a movable contact, the outlet terminal assembly is connected with a static contact, and the supporting piece is used for supporting the rocker and allowing the rocker to swing, wherein the rocker swings to further drive the movable contact to be in contact with or separated from the corresponding static contact, and the movable contact is horizontally arranged when in contact with the static contact, so that the contact movement or the separation movement between the contacts is vertical up and down.

After the rocker switch is repeatedly dialed, along with ablation and oxidation of the contact surface, the contact effect between the movable contact and the fixed contact is deteriorated, and a silver layer on the contact surface of the movable contact and the fixed contact is oxidized due to instantaneous high temperature generated by arc discharge of on-off current, so that a layer of non-conductive oxidation film is formed on the contact surface of the movable contact and the fixed contact.

For the rocker switch provided by the related art, the contact surfaces of the moving contact and the static contact are in the horizontal direction when in contact, so that the contact movement or the separation movement of the moving contact and the static contact is straight up and down. In this contact mode, as the number of times of dialing increases, the thickness of the oxide film formed on the surfaces of the moving contact and the stationary contact increases accordingly, and the power-on capability of the rocker switch is further reduced continuously.

To solve the technical problems provided by the related art, an embodiment of the present invention provides a rocker 100 capable of being used in a rocker switch, as shown in fig. 1 and 2, the rocker 100 includes: a connecting part 1, an arm part 2, a supporting part 3 and a movable contact 4, wherein the arm part 2 comprises a first arm section 21 and a second arm section 22 which are connected. The supporting portion 3 is connected to the bottom of the connecting portion 1, one end of the first arm segment 21, which is far away from the second arm segment 22, is connected to one side of the connecting portion 1, the first arm segment 21 is inclined upward relative to the connecting portion 1, and the second arm segment 22 is arranged obliquely relative to the first arm segment 21, so that the first end of the second arm segment 22, which is far away from the first arm segment 21, is located below the second end of the second arm segment 22, which is connected to the first arm segment 21.

As can be seen from fig. 2 and 3, the movable contact 4 is connected to the second arm section 22, and the movable contact 4 is configured such that the movable contact surface 40 of the movable contact 4 has a first included angle θ 1 with the horizontal direction in the state where the movable contact 4 is in contact with the corresponding fixed contact 501.

The rocker 100 provided by the embodiment of the present invention can be used in a rocker switch, and referring to fig. 3, it illustrates the fitting relationship between the rocker 100 and a stationary contact 501 fixedly arranged in the rocker switch. The structure of the arm 2 and the positional arrangement of the movable contact 4 are improved such that the movable contact 4 is arranged obliquely downward with respect to the first arm section 21, so that the movable contact surface 40 of the movable contact 4 has a first angle θ 1 with the horizontal direction when the rocker 100 swings to bring the movable contact 4 into contact with the stationary contact 501 in the rocker switch. Advantages of such an arrangement include, but are not limited to, the following:

on the one hand, the contact pressure between the movable contact 4 and the stationary contact 501 can be raised, thereby improving the energization performance of the switch.

On the other hand, as the contact surface is oxidized and ablated, the seesaw 100 in the flipped state is adaptively displaced eccentrically, so that the contact positions of the movable contact 4 and the stationary contact 501 are changed, and thus, the movable contact 4 and the stationary contact 501 show good electrical contact at the new contact positions.

On the other hand, different from the conventional direct pull-type separation, in the embodiment of the present invention, based on the structure of the rocker 100 and the inclined arrangement of the movable contact 4, a slight local sliding friction is generated when the movable contact 4 is separated from the stationary contact 501, so that an oxide generated on the contact surface of the movable contact 4 and the stationary contact 501 is scraped off, the self-cleaning of the contacts is realized, and the electrical contact performance between the movable contact 4 and the stationary contact 501 is further improved.

It can be seen that the rocker 100 according to the embodiment of the present invention effectively improves the power-on performance of the rocker switch while ensuring the safety by simply changing the structure of the arm 2 and the arrangement of the movable contact 4 thereon, and avoids a major change in the structure of the rocker switch.

In view of the technical problems in the rocker switch related to the related art, increasing the contact pressure between the movable contact 4 and the stationary contact 501 is an effective implementation scheme for improving the conduction performance of the rocker switch. This is because, in the rocker switch, the contact pressure between the movable contact 4 and the fixed contact 501 directly affects the contact resistance of the movable contact 4 and the fixed contact 501, and the contact pressure between the movable contact 4 and the fixed contact 501 is too small, which will make the contact resistance too large, resulting in too high temperature rise of the conductive component of the rocker switch, and even causing switch failure.

In the current conventional solution, the contact pressure between the movable contact 4 and the stationary contact 501 is generally increased in two ways, one of which is to increase the compression force of the spring 702 in the rocker switch's spring assembly 700; secondly, the distance between the central axis of the contact surface of the moving contact 4 and the stationary contact 501 and the swing center of the rocker 100 is greatly reduced. Here, the above-mentioned compression force of the spring 702 may be regarded as the compression amount of the spring 702.

However, if the compression force of the spring 702 in the spring assembly 700 is increased, this will correspondingly increase the dialing force of the faceplate 200 of the rocker switch (i.e., the pressing force of the faceplate 200), making the dialing feel of the faceplate 200 heavy, resulting in a poor user experience. In fact, the switch is now moving towards lighter and thinner, and it is expected that the dial force of the panel 200 is smaller, and thus a lighter hand feeling is obtained. If the distance between the central axis of the contact surface of the movable contact 4 and the stationary contact 501 and the swing center of the rocker 100 is greatly reduced, not only the longitudinal depth of the rocker switch is significantly increased, but also the electrical gap is reduced, so that the current breaks through the air to conduct electricity, which causes a danger.

According to the rocker 100 provided by the embodiment of the invention, by finely adjusting the local structure thereof, when the rocker is used in a rocker switch, the purpose of greatly improving the contact force between the movable contact 4 and the stationary contact 501 can be realized without increasing the compression force of the spring 702 in the spring assembly 700 and on the premise of slightly changing the structure and the size of the rocker switch, and meanwhile, the panel 200 of the rocker switch is ensured to have smaller dialing force.

In the rocker switch provided in the embodiment of the present invention, referring to fig. 2, in a state where the movable contact 4 is in contact with the fixed contact 501, a first included angle θ 1 is formed between the movable contact surface 40 of the movable contact 4 and the horizontal direction, that is, a first included angle θ 1 is formed between a normal extension line of the movable contact surface 40 of the movable contact 4 and the horizontal plane.

It has been found that the range of the first included angle θ 1 has a large influence on the contact force between the movable contact 4 and the fixed contact 501, and in some examples, the first included angle θ 1 is set to be 5 ° to 55 ° to obtain a large contact force, so as to ensure the purpose of enhancing the electrical contact performance between the movable contact 4 and the fixed contact 501.

For example, the range of the first included angle θ 1 includes, but is not limited to: 10-55 degrees, 15-55 degrees, 20-55 degrees, 25-55 degrees, 30-55 degrees, 40-55 degrees, 45-55 degrees and the like.

By way of further example, the first included angle θ 1 includes, but is not limited to: 5 °, 10 °, 15 °, 20 °, 25 °, 30 °, 35 °, 40 °, 41 °, 42 °, 43 °, 44 °, 45 °, 46 °, 47 °, 48 °, 49 °, 50 °, 51 °, 52 °, 53 °, 54 °, 55 °, and the like.

It is proved through experiments that when the second arm section 22 is inclined downwards relative to the first arm section 21, the first end of the second arm section 22 is inclined downwards relative to the second end thereof, and the movable contact 4 is in contact with the fixed contact 501, the movable contact surface 40 of the movable contact is inclined downwards and forms an included angle of 5-55 degrees with the horizontal direction, the contact pressure between the movable contact 4 and the fixed contact 501 is enhanced.

The inventors have used the paddle 100 according to the embodiment of the present invention as a test example and set up two comparative examples to theoretically calculate and test the electrical contact performance of the paddle 100 according to the embodiment of the present invention and the paddle 100 according to the related art. In the seesaw 100 according to comparative example 1, the second arm section 22 of the arm 2 is horizontally arranged, and the movable contact 4 is horizontally arranged when the movable contact 4 is in contact with the stationary contact 501 (see fig. 4); in the seesaw 100 according to comparative example 2, the arm portion 2 is disposed vertically upward or obliquely upward with respect to the connecting portion 1, and the movable contact 4 is disposed horizontally (not shown in the figure) when the movable contact 4 is in contact with the stationary contact 501.

The test results of the contact pressure of the above-described three types of seesaw 100 show that the seesaw 100 provided in the embodiment of the present invention imparts a larger contact pressure to the movable contact 4 and the stationary contact 501 than the movable contact 4 and the stationary contact 501 of the seesaw 100 provided in comparative examples 1 and 2, and that the contact pressure between the movable contact 4 and the stationary contact 501 gradually increases as the first angle θ 1 gradually increases from 5 ° to 55 °.

For example, in one of the test examples, the contact pressure corresponding to the rocker 100 provided in comparative example 1 is 0.833N, the contact pressure corresponding to the rocker 100 provided in comparative example 2 is 0.828N, and the contact pressure corresponding to the rocker 100 provided in the embodiment of the present invention is 0.994N when the first included angle θ 1 is 5 °, 1.633N when the first included angle θ 1 is 29.4 °, and 12.09N when the first included angle θ 1 is 55 °.

It can be seen that, in the range where the first included angle θ 1 is 5 ° to 55 °, the contact pressure between the movable contact 4 and the stationary contact 501 can be ensured to be increased, and thus the electrical contact performance of the rocker switch is improved, and the electrical contact performance of the rocker switch is in direct proportion to the contact pressure between the movable contact 4 and the stationary contact 501.

In some examples, when the value of the first included angle θ 1 is larger, the compression force of the spring 702 of the spring assembly 700 may be appropriately reduced compared to the related art, so that on the premise of ensuring that the contact pressure of the movable contact 4 and the stationary contact 501 is still sufficiently large, the dialing force of the panel 200 may be reduced, the hand feeling of the rocker switch is lighter, and the hand feeling of the rocker switch is significantly improved, so that the rocker switch has both excellent electrical contact performance and lighter dialing hand feeling.

With the rocker 100 provided in the embodiment of the present invention, the arm 2 includes the first arm segment 21 and the second arm segment 22 connected, and the first arm segment 21 is inclined upward relative to the connecting portion 1, that is, the first end of the first arm segment 21 is connected to one side of the connecting portion 1, and the second end of the first arm segment 21 extends upward.

The inclination angle of the first arm section 21 with respect to the connecting portion 1, that is, the included angle therebetween may range from 100 ° to 170 °, further from 110 ° to 160 °, further from 120 ° to 150 °, and the like.

The second arm segment 22 is inclined downwardly relative to the first arm segment 21 such that a second end of the second arm segment 22 is connected to a second end of the first arm segment 21 and a first end of the second arm segment 22 extends downwardly.

The second arm section 22 and the first arm section 21 form a second included angle therebetween, for example, the second included angle is 10 ° to 160 °, such as 30 ° to 120 °, 45 ° to 120 °, 60 ° to 120 °, 90 ° to 110 °, and the like, and further, this includes but is not limited to 60 °, 70 °, 80 °, 85 °, 90 °, 95 °, 100 °, 110 °, and the like.

For example, the second included angle between the second arm section 22 and the first arm section 21 is 90 ° to 110 °, which not only makes the downward inclination angle of the second arm section 22 meet the requirement easily, but also is beneficial to reducing the volume of the rocker.

The second angle between the second arm section 22 and the first arm section 21 is determined adaptively according to the specific arrangement of the first arm section 21, and it is only necessary that the second arm section 22 has an inclination such that the movable contact 4 thereon is inclined downward in the contact state, and the movable contact surface 40 of the movable contact 4 has an angle of 5 ° to 55 ° with the horizontal direction.

In the embodiment of the present invention, the lengths of the first arm segment 21 and the second arm segment 22 are adaptively designed according to the design of the inner space of the rocker switch, and the length of the first arm segment 21 may be greater than, equal to, or less than the length of the second arm segment 22, for example, fig. 1 illustrates that the length of the second arm segment 22 is less than the length of the first arm segment 21.

As an example, the second angle between the second arm section 22 and the first arm section 21 is 90 ° to 100 °, and the length of the second arm section 22 is 1/3 to 1/2 of the length of the first arm section 21.

The movable contact 4 is connected to the second arm section 22 such that the second arm section 22 carries the movable contact 4, wherein the movable contact 4 is located on a surface of the second arm section 22 close to the support portion 3, and the movable contact 4 may be fixedly connected to the second arm section 22 by riveting or the like.

For different types of rocker switches, the arm 2 may be provided as one, or the arm 2 may be provided as two symmetrically arranged on both sides of the connecting portion 1.

Further, the movable contact 4 is provided as one, and it is sufficient that the movable contact 4 is disposed on the second arm section 22 of one of the arm sections 2 to be adapted to a single pole single throw switch (not shown in the figure).

Alternatively, the movable contact 4 is provided in two, that is, the two movable contacts 4 are symmetrically arranged on the two second arm segments 22 corresponding to the two arm sections 2 to be adapted to a double pole single throw switch (see fig. 3).

In which fig. 1 illustrates a structure of a seesaw 100 adapted to a double pole, single throw switch.

In some examples, the connecting portion 1, the arm portion 2 and the supporting portion 3 are integrally formed by a stamping process using a metal plate material, so as to obtain a main structure of the integrated rocker 100.

In some examples, the connecting portion 1 has a flat plate shape to allow the pins 701 of the pin assembly 700 to slide thereon, thereby driving the rocker 100 to swing.

In some examples, referring to fig. 1, the supporting portion 3 has a swing slot 30, and the top of the supporting member 401 of the rocker switch extends into the swing slot 30, so that the supporting portion 3 can swing, i.e. rotate, around the supporting member 401, and the shape of the swing slot 30 includes but is not limited to: trapezoidal, rectangular, triangular, arcuate, etc.

In some examples, the number of the supporting portions 3 is two, the two supporting portions 3 are respectively located at two sides of the connecting portion 1, and the central axes of the two supporting portions 3 and the connecting portion 1 coincide with each other, so that the swing of the seesaw 100 is more stable without deviation.

(1) In connection with the structure of the rocker 100 according to the embodiment of the present invention, the following theoretical analysis is performed on how the rocker 100 increases the contact pressure between the movable contact 4 and the stationary contact 501:

fig. 5 illustrates the force applied to the rocker 100 provided by the embodiment of the present invention during the operation, referring to fig. 5, after the rocker 100 provided by the embodiment of the present invention swings to make the movable contact 4 contact with the fixed contact 501, the movable contact surface 40 of the movable contact 4 is inclined downward, rather than being arranged horizontally or inclined upward, the movable contact surface 40 of the movable contact 4 forms a first included angle θ 1 with the horizontal direction, the contact pressure between the movable contact 4 and the fixed contact 501 is defined as P1', and the distance between the center line of the movable contact surface 40 of the movable contact 4 and the swing center O of the rocker 100 is defined as L ₁ ' (the L ₁ ' represents the moment arm of the movable contact surface 40 of the movable contact 4 to the swing center O of the rocker 100).

Fig. 6 illustrates a seesaw provided by a comparative example in which a distance between a center line of a movable contact surface 40 of the movable contact 4 and a swing center O of the seesaw 100 is defined as L, and a movable contact 4 is horizontally arranged as a comparative example in which the movable contact 4 is placed in contact with a stationary contact 501 during operation of the seesaw 100 according to an embodiment of the present invention, in which the movable contact 4 and the second arm section 22 of the seesaw 100 are marked by solid lines ₁ . The movable contact 4 and the second arm section 22 of the rocker 100 according to the embodiment of the present invention are marked with dotted lines. As can be seen in FIG. 6, it is apparent that L ₁ ' phase to phase L ₁ Will tend to decrease significantly, i.e., L ₁ '＜L ₁ 。

With further reference to fig. 6, the compressive force of spring 702 of spring assembly 700 on rocker 100 is defined as P ₂ The moment arm of the spring 702 of the spring assembly 700 to the swing center O of the rocker 100 is defined as L ₂ According to the moment balance principle of the rocker 100, P ₂ ×L ₂ ＝P ₁ '×L ₁ ' (for embodiments of the invention), and, P ₂ ×L ₂ ＝P ₁ ×L ₁ (for comparative examples), furthermore, P ₁ /P ₁ '＝L ₁ '/L ₁ 。

Then, at L ₁ '＜L ₁ When is, P ₁ ＜P ₁ That is, the embodiment of the present invention provides that the distance between the center line of the movable contact surface 40 of the movable contact 4 and the swing center of the seesaw 100 is reduced as compared with the related art, and further, the contact pressure between the movable contact 4 and the stationary contact 501 is increased accordingly.

(2) In connection with the structure of the rocker 100 according to the embodiment of the present invention, it is analyzed how the rocker 100 ensures good electrical contact between the moving contact 4 and the stationary contact 501 as follows:

(2.1) the contact surfaces of the movable contact 4 and the fixed contact 501 are provided with conductive silver layers, wherein the conductive silver layers can be subjected to arc discharge due to electrification in the switch dialing process, and the surfaces of the silver layers can be oxidized and ablated. Wherein the ablation results in a loss of size of the silver layer. Based on the special arrangement of the arm 2 and the movable contact 4 of the rocker 100 according to the embodiment of the present invention, the movable contact 4 and the fixed contact 501 make downward inclined contact, and then the rocker 100 will turn over and generate eccentric displacement along with the continuous deepening of ablation, so that the positions of the contact points of the movable contact 4 and the fixed contact 501 change accordingly. It is understood that the micro-protrusions of the surfaces of the movable contact 4 and the fixed contact 501 which are in contact with each other are brought into contact, thereby achieving the electrical contact between the movable contact 4 and the fixed contact 501, and the micro-protrusions can be regarded as the contact points.

Fig. 7 illustrates a change in the contact pattern of the movable contact 4 and the stationary contact 501 in a state where ablation is continuously deepened, as shown in a diagram of fig. 7, the movable contact 4 and the stationary contact 501 are first contacted through the middle portions of the respective contact surfaces (i.e., the contact points are located in the middle portions), and as the ablation is deepened, the contact pattern thereof is changed to a diagram B, the contact surfaces of the movable contact 4 and the stationary contact 501 that are contacted are gradually inclined downward (i.e., the contact points are gradually inclined downward, wherein the dotted portions indicate the contact portions that have been ablated), and further, the ablation is further deepened, the contact pattern thereof is changed to a diagram C, and the contact surfaces of the movable contact 4 and the stationary contact 501 that are contacted are further inclined downward (i.e., the contact points are further inclined downward, wherein the dotted portions indicate the contact portions that have been ablated).

It can be seen that based on the special arrangement of the arm 2 and the movable contact 4 of the rocker 100 according to the embodiment of the present invention, as the ablation is continuously deepened, the positions of the contact points of the movable contact 4 and the stationary contact 501 are changed, so that new silver layer bumps are always present at the contact positions of the movable contact 4 and the stationary contact 501, thereby ensuring good electrical contact, and further ensuring good electrical contact between the movable contact 4 and the stationary contact 501.

(2.2) based on the special arrangement of the arm 2 and the movable contact 4 of the rocker 100 according to the embodiment of the present invention, the movable contact 4 and the stationary contact 501 make downward inclined contact, so that when the rocker 100 is turned over to drive the movable contact 4 to be separated from the stationary contact 501, the separation mode is different from the direct pulling separation mode related to the related art, in the structure of the rocker 100 according to the embodiment of the present invention, the movable contact 4 must be partially wiped in a state meeting a certain contact pressure, and then is finally separated from the stationary contact 501, in the wiping process, the non-conductive oxide generated by the arcing on the surface of the silver layer will be scraped or collided to fall off, the mutual friction realizes the self-cleaning of the silver layer of the contact, and a new exposed silver layer is added, so that not only is the contact stability of the movable contact 4 and the stationary contact 501 effectively improved, but also the temperature rise performance of the rocker switch is improved, and the contact adhesion phenomenon is avoided. In addition, since the movable contact 4 and the stationary contact 501 are inclined downward, the oxides on the silver layer are also facilitated to slide therefrom. Eventually, this ensures good electrical contact between the movable contact 4 and the stationary contact 501.

In another aspect, an embodiment of the present invention further provides a rocker switch, which includes any one of the rockers 100 described above.

The rocker switch provided by the embodiment of the invention has all the advantages brought by the rocker 100, and is not described in detail herein.

In addition to the rocker 100, the rocker switch provided by the embodiment of the present invention includes at least the following components directly related to the operation of the rocker 100:

as shown in fig. 8 to 10, the rocker switch according to the embodiment of the present invention further includes: inlet terminal assembly 400 and outlet terminal assembly 500, inlet terminal assembly 400 includes support member 401, support member 401 and supporting portion 3 of wane 100 swing joint to allow wane 100 to swing, outlet terminal assembly 500 includes stationary contact 501, stationary contact 501 is used for contacting with corresponding movable contact 4.

Referring further to fig. 8-10, a typical rocker switch is illustrated that includes a face plate 200, a housing assembly 300, a wire inlet terminal assembly 400, a wire outlet terminal assembly 500, a transition piece 600, and a spring assembly 700. The incoming line terminal assembly 400 and the outgoing line terminal assembly 500 are both fixed inside the base body assembly 300, the incoming line terminal assembly 400 includes a support 401, the support 401 is movably connected with the support portion 3 of the rocker 100 to allow the rocker 100 to swing, the outgoing line terminal assembly 500 includes a stationary contact 501, and the stationary contact 501 is used for contacting with the corresponding movable contact 4. The two ends of the transition piece 600 are respectively connected to the panel 200 and the ball assembly 700, the panel 200 is further hinged to the base assembly 300, and the ball assembly 700 abuts against the top of the connecting portion 1 of the rocker 100 to drive the rocker 100 to swing.

During the application, the user stirs panel 200 and makes it rotate, and pivoted panel 200 passes through transition piece 600 with drive power transmission to bullet subassembly 700, and bullet subassembly 700 slides from side to side on connecting portion 1 of wane 100, and then makes wane 100 swing, and wobbling wane 100 drives movable contact 4 and corresponding stationary contact 501 contact or separation, and then reaches the purpose of break-make electric current.

The fixed contact 501 corresponds to the position of the movable contact 4, and in some examples, as will be understood from fig. 11, a fixed contact face 5010 of the fixed contact 501 is arranged obliquely with respect to the horizontal direction to accommodate the movable contact 4 arranged obliquely, so that the fixed contact 501 can be brought into contact with the movable contact 4 relatively.

In some examples, the static contact face 5010 of the static contact 501 has a third included angle with the horizontal direction, and the third included angle is the same as the first included angle θ 1, that is, the static contact face 5010 of the static contact 501 has an included angle with the horizontal direction ranging from 5 ° to 55 °, so that the static contact 501 and the movable contact 4 are correspondingly positioned, and the contact faces of the two can be in face-to-face contact, thereby achieving the purpose of optimizing the contact pressure between the contacts.

The stationary contact 501 is fixedly disposed on the outlet terminal assembly 500 in a manner directly related to the structure of the outlet terminal assembly 500, and in some examples, as shown in fig. 11, the outlet terminal assembly 500 further includes: a conductive connector 502 and an outlet terminal 503, wherein the conductive connector 502, i.e., a metallic conductive strip, serves as a connection and guide to deliver the stationary contact 501 to a target location.

As shown in fig. 11, the conductive connector 502 includes a first connecting segment 5021 and a second connecting segment 5022 connected, an end of the first connecting segment 5021 far away from the second connecting segment 5022 is connected to the outlet terminal 503, and an end of the second connecting segment 5022 far away from the first connecting segment 5021 is connected to the stationary contact 501; the second coupling segment 5022 is arranged obliquely with respect to the horizontal direction.

A first end of the second coupling segment 5022 is connected to the first coupling segment 5021, and a second end of the second coupling segment 5022 is inclined upward and extends such that a stationary contact face 5010 of the stationary contact 501 is arranged obliquely with respect to the horizontal direction.

In some examples, the angle between the second coupling segment 5022 and the horizontal is in the range of 5 ° to 55 °.

In some examples, the first connection segment 5021 includes a first portion fixed to the outlet terminal 503 and a second portion connected to the second connection segment 5022, and the first portion and the second portion are arranged at an angle, i.e., the first connection segment 5021 is bent to ensure that the stationary contact 501 is at the target position.

The positional relationship of the movable contact 4 and the stationary contact 501 is adaptively determined according to the specific type of the rocker switch, and the following are respectively exemplified:

referring to fig. 10, for a positive-acting rocker switch, the moving contact 4 is located above the corresponding stationary contact 501, and the stationary contact 501 is located on an inclined surface of the second connection segment 5022 facing away from the rocker 100, such that the moving contact 4 is above and the stationary contact 501 is below when the moving contact 4 and the stationary contact 501 are in contact.

For a positive rocker switch, further referring to fig. 11, the conductive link 502 further includes a third connection segment 5023, a first end of the third connection segment 5023 is connected with a second end of the second connection segment 5022, and a second end of the third connection segment 5023 extends downward, so that the third connection segment 5023 can be inserted into a slot provided on the base 301, thereby achieving the positioning and stable arrangement of the conductive link 502 in the base 301.

Referring to fig. 12, for the seesaw switch, the movable contact 4 is positioned below the corresponding stationary contact 501, and the stationary contact 501 is positioned on the inclined surface of the second connection section 5022 near the seesaw 100, so that the movable contact 4 is positioned downward and the stationary contact 501 is positioned upward when the movable contact 4 and the stationary contact 501 are in contact.

Based on the structural arrangement of the rocker 100 provided by the embodiment of the invention, both the forward-beating type rocker switch and the backward-beating type rocker switch can obtain the same effect, stronger contact pressure between contacts is realized, the switch electrifying performance is enhanced, and the dialing hand feeling can be reduced.

The rocker switch provided by the embodiment of the invention can be a single-pole single-throw switch and can also be a double-pole single-throw switch.

For a single pole, single throw switch, which includes only one movable contact 4 and one stationary contact 501, for example, the movable contact 4 and the stationary contact 501 may be located on either side of the rocker 100 (not shown).

For a double pole single throw switch, it includes two moving contacts 4 and two stationary contacts 501, the moving contacts 4 and the stationary contacts 501 are symmetrically arranged on both sides of the rocker 100 (see fig. 10-fig. 12).

It will be appreciated that the number and location of the inlet terminal assemblies 400 corresponds to the stationary contacts 501. As shown in fig. 10-12, which illustrate the structure of a double pole, single throw switch.

With each of the types of rocker switches described above, the components involved therein, such as rocker 100, faceplate 200, housing assembly 300, inlet terminal assembly 400, outlet terminal assembly 500, transition piece 600, and bullet assembly 700, are identical, except that the number and placement of certain components are different.

For the incoming terminal assembly 400 and the outgoing terminal assembly 500, which are respectively fixed at different positions inside the fixing frame 302, for example, with a double-pole single-throw switch, referring to fig. 9 and 10, two outgoing terminal assemblies 500 are located at two sides of the base assembly 300, and the incoming terminal assembly 400 is located between the two outgoing terminal assemblies 500.

In addition to support member 401, wire terminal assembly 400 further includes a wire terminal, wherein the wire terminal is electrically connected to support member 401. It can be seen that for the incoming terminal assembly 400, it serves both to support the paddle 100 and to provide a conductive path.

In some examples, the support 401 includes: a support body connected with the incoming line terminal, an arc rotating part on the top of the support body, the arc rotating part is located in the swing groove 30 of the support part 3 of the rocker 100, so that the rocker 100 can rotate around the support 401.

The spring assembly 700 can rotate with the rotating transition piece 600, which in turn drives the rocker 100 to rotate, such that the movable contact 4 on the rocker 100 contacts or separates from the stationary contact 501 on the outlet terminal assembly 500.

In some examples, referring to fig. 10, a bullet assembly 700 includes: the transition piece 600 is provided with a blind hole penetrating to the bottom, the pin 701 is installed in the blind hole, the lower end of the pin 701 is positioned outside the blind hole and abuts against the top of the connecting part 1 of the rocker 100, and the spring 702 is positioned between the upper end of the pin 701 and the top wall of the blind hole. Wherein, the lower end of the marble 701 is spherical or conical, so that the seesaw 100 can be driven more smoothly.

When the transition piece 600 rotates, the ball assembly 700 can be driven to rotate along with the transition piece, and during the rotation of the ball assembly 700, the spring 702 at the upper end of the ball 701 is compressed, and at the same time, the lower end of the ball 701 slides relative to the top surface of the connecting part 1 of the rocker 100, and finally the lower end of the ball 701 slides from one end of the top of the supporting part 3 to the other end. In this process, the lower end of the pin 701 always abuts against the connection portion 1 of the rocker 100 and applies a driving force thereto due to the elastic force of the spring 702, so that the rocker 100 swings.

With respect to the housing assembly 300, in some examples, referring to fig. 9 and 10, it includes a base 301, a fixing frame 302 and a pressing member 303, wherein the base 301 has a receiving space for receiving the rocker 100, the incoming terminal assembly 400 and the outgoing terminal assembly 500, the pressing member 303 is connected to the base 301 to close the receiving space, and the fixing frame 302 is enclosed and connected to the outside of the base 301.

The panel 200, also called a button or a key, is connected to the transition piece 600 to cover the fixing frame 302, and the transition piece 600 is further hinged to the pressing piece 303, so that the panel 200 can be pressed and rotated relative to the fixing frame 302 and the base 301. Furthermore, two sides of the panel 200 may further be provided with a rotation protrusion, a rotation slot is disposed at a corresponding position on the fixing frame 302, and the rotation protrusion is located in the rotation slot to guide the rotation of the panel 200, so that the rotation of the panel 200 is more stable and reliable.

In summary, the rocker switch provided by the embodiment of the invention has at least the following advantages:

by using the above-mentioned rocker 100 of the embodiment of the present invention, on one hand, the contact pressure between the movable contact 4 and the stationary contact 501 is significantly increased, and compared with the prior art, the contact pressure can be increased by more than 10 times, which is beneficial to reducing the temperature rise of the switch, preventing the switch from failing, and increasing the operation reliability of the switch. On the other hand, the displacement of the contact position between the contacts in the dialing process is realized, the new contact position is used for contact, and the electric contact performance is further improved. On the other hand, the mutual sliding and wiping of the oxide layers at the contact positions in the dialing process can be realized, the contact surfaces are self-cleaned, new contact surfaces are formed, and the electric contact performance is further improved.

On the basis that the contact pressure between the movable contact 4 and the stationary contact 501 is significantly increased, the compressive force of the spring 702 of the spring assembly 700 can be appropriately reduced, so that a higher contact pressure and a lighter dialing hand feeling can be taken into account.

Compared with the prior art, the structure of the rocker switch is only slightly changed, and the structural change amount is small, so that the rocker switch is easier to prepare, and the manufacturing cost is reduced.

In embodiments of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

The above description is only for facilitating the understanding of the technical solutions of the present invention by those skilled in the art, and is not intended to limit the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rocker, characterized in that the rocker (100) comprises: the device comprises a connecting part (1), an arm part (2), a supporting part (3) and a movable contact (4), wherein the arm part (2) comprises a first arm section (21) and a second arm section (22) which are connected;

the supporting part (3) is connected to the bottom of the connecting part (1), one end of the first arm section (21) far away from the second arm section (22) is connected to one side of the connecting part (1), the first arm section (21) is inclined upwards relative to the connecting part (1), and the second arm section (22) is arranged obliquely relative to the first arm section (21) so that the first end of the second arm section (22) far away from the first arm section (21) is positioned below the second end of the second arm section (22) connected with the first arm section (21);

the movable contact (4) is connected to the second arm section (22), the movable contact (4) is configured in a way that a first included angle theta 1 is formed between a movable contact surface (40) of the movable contact (4) and the horizontal direction under the contact state of the movable contact (4) and the corresponding fixed contact (501).

2. The rocker according to claim 1, wherein said first included angle θ 1 is 5 ° to 55 °.

3. A rocker according to claim 1, characterised in that said second arm section (22) has a second angle to said first arm section (21), said second angle being 10 ° to 160 °.

4. A rocker according to claim 1, characterised in that said arm (2) is provided in one;

or,

the arm parts (2) are arranged in two symmetrically arranged at two sides of the connecting part (1).

5. A rocker switch, characterized in that it comprises a rocker (100) according to any of claims 1-4.

6. The rocker switch according to claim 5, further comprising: an incoming terminal assembly (400) and an outgoing terminal assembly (500);

the incoming terminal assembly (400) comprises a support (401), the support (401) is movably connected with a support part (3) of the rocker (100) to allow the rocker (100) to swing, the outgoing terminal assembly (500) comprises a static contact (501), and the static contact (501) is used for being in contact with the corresponding movable contact (4);

the stationary contact surface (5010) of the stationary contact (501) is arranged obliquely to the horizontal.

7. The rocker switch according to claim 6, characterised in that the stationary contact surface (5010) of the stationary contact (501) has a third angle to the horizontal, said third angle being the same as the first angle θ 1.

8. The rocker switch according to claim 6, wherein the outlet terminal assembly (500) further comprises: the conductive connector (502) comprises a first connecting section (5021) and a second connecting section (5022) which are connected, the end of the first connecting section (5021) far away from the second connecting section (5022) is connected to the outlet terminal (503), and the end of the second connecting section (5022) far away from the first connecting section (5021) is connected to the stationary contact (501);

the second connecting section (5022) is arranged obliquely to the horizontal direction.

9. The rocker switch according to claim 8, characterised in that the movable contact (4) is located above the corresponding stationary contact (501), the stationary contact (501) being located on an inclined surface of the second connection section (5022) facing away from the rocker (100);

or,

the movable contacts (4) are located below the corresponding stationary contacts (501), and the stationary contacts (501) are located on an inclined surface of the second connection section (5022) close to the rocker (100).

10. The rocker switch according to any of claims 5-9, wherein said rocker switch is a single pole single throw switch or a double pole single throw switch.