CN118098860A - Breaking structure of control switch and control switch with same - Google Patents

Abstract

The invention relates to a breaking structure of a control switch. The breaking structure of the present invention comprises: a first pendulum rod, a second pendulum rod, a linkage and a seesaw type contact structure, it is connected in control switch's base, it includes: a support shaft frame, on which a movable contact piece is connected; the first static contact piece assembly and the second static contact piece assembly are arranged on the other side of the support shaft frame and are provided with a second static contact part; the second swing rod is provided with a driving head which can be abutted to the supporting part to drive the movable contact piece to swing between two switching positions, so that the switching-on or switching-off of the switch circuit is realized. The invention also discloses a control switch with the breaking structure, which can improve the reliability of the electric breaking and switching-on actions of the control switch and is beneficial to further realizing the light and thin control switch products.

Description

Breaking structure of control switch and control switch with same

Technical Field

The invention relates to the technical field of low-voltage power, in particular to a breaking structure of a control switch and the control switch with the breaking structure.

Background

In the field of switch sockets, the toggle angle of the key in most cases of the conventional panel switch at present usually adopts a rotation range of 3.5 degrees to 4 degrees, and the minimum thickness of the corresponding key is usually about 8.5 mm. Therefore, the traditional mechanical switch is limited by the fact that the toggle angle is too large, so that the switch cannot be made thinner. In order to achieve reliable electrical breaking and switching-on effects of the switch through toggle of the switch keys, the size requirements of the ultrathin switch can be met, and in a specific implementation mode of a product, both the switch keys cannot be considered at the same time.

In order to solve the above technical problems, a person skilled in the art needs to develop a novel breaking structure of the control switch.

Disclosure of Invention

The invention aims to provide a breaking structure of a control switch, which not only improves the reliability of the electric breaking and switching-on actions of the control switch, but also is beneficial to further realizing the light and thin appearance of the control switch product.

The invention discloses a breaking structure of a control switch, which comprises: a first swing link; one end of the second swing rod is connected with the first swing rod; a linkage, having: a pivot portion pivotally connected to the pressure plate of the control switch; a first end connected to the first swing link; and a second end connected to the second swing link; a seesaw-type contact structure connected to the base of the control switch, comprising: a support shaft frame, on which a movable contact piece is connected; a first static contact assembly arranged at one side of the support and provided with a first static contact part; the second static contact piece assembly is arranged on the other side of the support shaft frame and is provided with a second static contact part; the movable contact piece comprises a supporting part positioned in the middle, a first movable contact part and a second movable contact part which are respectively positioned at two sides of the supporting part, wherein a driving head is arranged on the second swinging rod and can be abutted to the supporting part so as to drive the movable contact piece to swing between two switching positions, so that the switching on or switching off of a switch circuit is realized.

According to one aspect of the invention, the linkage member includes a sheet-like body which is receivable within the first swing link, and the pivot portion is located on the sheet-like body to enhance compactness of the internal structure of the control switch.

According to another aspect of the invention, the inner cavity of the first swing rod is provided with a containing groove, and the containing groove is matched with the shape and the outline of the sheet-shaped body, so that stable driving force transmission between the first swing rod and the linkage piece is facilitated.

According to still another aspect of the present invention, the pivot portion of the linkage member is provided with a shaft hole, the pressing plate is provided with a driving shaft for being matched with the shaft hole, the cross section of the driving shaft is in an irregular shape, and a protrusion is provided in the shaft hole to achieve a predetermined driving effect of the linkage member.

According to still another aspect of the present invention, the cross-sectional shape of the driving shaft is a combination of circular arc shape and tooth shape, and the protrusion is in a truncated cone shape.

According to another aspect of the invention, the first end of the linkage member extends out to form a pair of limiting lugs which are movably connected to the accommodating groove of the first swing rod. Through the design, the driving stability can be enhanced, so that a more reliable electric breaking or switching-on effect can be realized.

According to still another aspect of the present invention, the second end portion of the link member is extended with a driving block which is cooperatively coupled to the driving groove of the second swing link to enhance the driving force transmission efficiency between the second swing link and the link member.

According to another aspect of the invention, the movable contact is V-shaped, and the bottom of the supporting portion abuts against the support shaft bracket, so as to ensure that the internal structure of the control switch is more compact.

According to the invention, the linear distance between the shaft hole and the second end is one half of the linear distance between the first end and the second end, and the design further enables the linkage piece to effectively amplify at least twice of the transmission force distance, so that the effect of driving the first swing rod at an initial small angle and finally realizing the large-angle swing of the second swing rod is skillfully realized.

Meanwhile, the invention also discloses a control switch, which comprises: a base; at least one key for realizing a pressing motion in two directions; a pressing plate; the first swing rod is connected to the pressing plate, and at least one breaking structure with the structure or the characteristics and the combination of the first swing rod is used for applying pressing forces in different directions to the keys, so that the first swing rod can drive the linkage piece, the linkage piece drives the second swing rod to realize large-angle rotation, and then the movable contact piece is driven to swing between two switching positions, so that the connection or the breaking of a switching circuit is realized, and meanwhile, the compactness requirement on the control switch structure is better met.

Drawings

The invention will be described in detail below with reference to the drawings and the detailed description. Wherein:

fig. 1 is a partial schematic structure view of a breaking structure according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the connection of a linkage to a platen according to one embodiment of the present invention;

FIG. 3 is a schematic view of the broken structure of FIG. 1, viewed at another angle;

FIG. 4 is an exploded view of the structure of FIG. 3;

fig. 5 is a schematic cross-sectional structure of a control switch of the switch according to the present invention.

Description of the reference numerals

First pendulum rod 10 drive shaft 501

Second swing rod 20 seesaw type contact piece structure 40

First stationary contact assembly 41 of accommodation groove 200

Second stationary contact assembly 42 of drive head 201

Drive slot 202 bracket 43

Moving contact 44 of linkage 30

Sheet-like body 300 supporting portion 440

First movable contact portion 441 of first end portion 31

Second movable contact portion 442 of limit lug 311

The second end 32 switches positions s1, s2

First static contact a1 of driving block 321

Second stationary contact a2 of pivot 33

First movable contact b1 of projection 331

Shaft hole 330 second movable contact b2

Platen 50

Detailed Description

For a clearer understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described with reference to the drawings, in which like reference numerals refer to identical or structurally similar but functionally identical components throughout the separate views.

In this document, "schematic" means "serving as an example, instance, or illustration," and any illustrations, embodiments described herein as "schematic" should not be construed as a more preferred or advantageous solution.

For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product. In addition, for simplicity and ease of understanding, components having the same structure or function in some of the figures are shown schematically only one of them, or only one of them is labeled.

Nouns and pronouns for humans in this patent application are not limited to a particular gender.

In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used only to indicate positional relationships between related parts, and do not define their absolute positions.

Herein, "first", "second", etc. are used merely to distinguish one from another, and do not indicate their importance, order, etc.

Herein, "parallel", "perpendicular", etc. are not strictly mathematical and/or geometric limitations, but also include tolerances which may be understood and appreciated by those skilled in the art and which may be varied in making or using the same.

The invention discloses a breaking structure of an embodiment, which is applied to a control switch so that the control switch can enhance the reliability of a circuit on or off action. Referring to fig. 1, the breaking structure for controlling a switch of the present invention includes a first swing link 10, a second swing link 20, a linkage 30, and a seesaw type contact structure 40. Referring to fig. 2, specifically, one end of the second swing link 20 is connected to the first swing link 10. The linkage 30 has a pivot portion 33, a first end 31 and a second end 32. The pivot portion 33 is pivotally connected to the pressure plate 50 of the control switch. The first end 31 is connected to the first pendulum rod 10. The second end 32 is connected to the second swing link 20. The one teeter-totter contact structure 40 is connected to the base of the control switch.

Specifically, the teeter-totter contact structure 40 includes a fulcrum housing 43, a first stationary contact assembly 41, and a second stationary contact assembly 42. The support shaft frame 43 can play a supporting role, and one movable contact piece 44 is connected to the support shaft frame 43, for example, the movable contact piece 44 is in contact with the upper surface of the support shaft frame 43 in a contact manner, and the support shaft frame 43 is used as a rotation pivot to realize reciprocating swing. The first stationary contact assembly 41 is disposed on one side of the fulcrum housing 43 and has a first stationary contact portion. The first static contact part is provided with a first static contact head a1. The second stationary contact assembly 42 is disposed on the other side of the fulcrum housing 43 and has a second stationary contact portion. And a second contact head a2 is arranged on the second static contact part.

The movable contact 44 includes a supporting portion 440 located in the middle, a first movable contact portion 441 located at one side of the supporting portion 440, and a second movable contact portion 442 located at the other side of the supporting portion 440. The first moving contact portion 441 is provided with a first moving contact b1, and the second moving contact portion 442 is provided with a second moving contact b2. In order to better achieve the driving effect, the second swing rod 20 is provided with a driving head 201, the driving head 201 extends from the end of the second swing rod 20 to be able to abut against the supporting portion 440, so as to drive the movable contact 44 to swing, and the supporting portion 440 and the spindle bracket 43 cooperate to form a rotation fulcrum, so that the movable contact 44 swings between the two switching positions s1 and s2, thereby realizing the connection or disconnection of the switch circuit. Specifically, the driving head 201 is connected to the inner cavity of the second swing link 20 through a resettable member.

It will be appreciated that the two switch positions s1, s2 represent a first switch position s1 and a second switch position s2, respectively. As an exemplary embodiment, for example, when the movable contact 44 moves to the first switching position s1, the first stationary contact a1 is turned on with the first movable contact b1, and at this time, the second stationary contact a2 is turned off with the second movable contact b 2. When the movable contact 44 moves to the second switching position s2, the first stationary contact a1 is disconnected from the first movable contact b1, and at this time, the second stationary contact a2 is connected to the second movable contact b 2.

In order to enhance the compactness of the internal structure of the control switch, it is preferable that the linkage 30 includes a plate-shaped body 300, as shown in fig. 3 and 4, the plate-shaped body 300 is accommodated inside the first swing link 10, and the pivot portion 33 is located on the plate-shaped body 300. According to a preferred embodiment of the present invention, the inner cavity of the first swing rod 10 is provided with a receiving groove 200, and the receiving groove 200 is adapted to the shape and the contour of the sheet-shaped body 300, so that by means of the design, a stable driving effect can be further achieved.

It should be noted that, in connection with fig. 2, the pivot portion 33 of the linkage 30 is provided with a shaft hole 330, and the pressing plate 50 is provided with a driving shaft 501 for matching with the shaft hole 330 according to the breaking structure of the control switch in one embodiment of the present invention. The driving shaft 501 has an irregular cross section, and the shaft hole 330 has a protrusion 331 therein. In order to achieve a predetermined driving effect, as a specific embodiment, referring to fig. 3, the cross-sectional shape of the driving shaft 501 is a combination of arc shape and tooth shape, and the protrusion 331 is in a truncated cone shape. Through the design, the driving stability can be enhanced, so that a more reliable electric breaking or switching-on effect can be realized.

In order to achieve a better limiting effect, the first end 31 of the linkage member 30 extends to form a pair of limiting lugs 311, which are movably connected to the accommodating groove of the first swing rod 10. Preferably, the second end 32 of the linkage 30 of the present invention is extended with a driving block 321 which is cooperatively coupled to the driving groove 202 of the second swing link 20 to better achieve effective transmission of driving force. It will be appreciated that the shapes and structures of the drive shaft and the shaft hole, the drive block and the drive slot are not exclusive, and that those skilled in the art may take other shapes or structures adapted to each other to embody the corresponding functions, without being limited thereto.

As a specific embodiment, the movable contact 44 of the present invention has a V-shape, and the bottom of the supporting portion 440 abuts against the support frame 43. The V-shaped movable contact piece is connected to and supported by a support shaft frame, and the movable contact piece and the fixed contact piece positioned at the same side are electrically contacted through the back and forth swinging of the V-shaped movable contact piece. It should be noted that the V-shaped structure is not unique, and those skilled in the art can make corresponding modifications according to practical situations on the premise of satisfying basic functions and effects.

Referring to fig. 2 to 4, as a preferred embodiment of the breaking structure of the control switch of the present invention, the linear distance of the shaft hole 330 from the second end 32 is one half of the linear distance between the first end 31 and the second end 32. Through the design, the effect of driving the first swing rod 10 at a small angle and swinging the second swing rod 20 at a large angle can be better achieved through double reinforcement of the force distance of the linkage piece 30, and the high efficiency and reliability of the electric breaking and switching-on actions are enhanced.

Meanwhile, as shown in fig. 5, the invention also discloses a control switch. The control switch comprises a base; at least one key (illustrated as three keys) for realizing pressing actions in two directions; a pressing plate 50 connected below the key; the first swing rod 10 is connected to the pressing plate 50, and at least one of the above combination and feature and the combined breaking structure thereof, by applying pressing forces in different directions to the keys, the first swing rod 10 can drive the linkage member 30, the linkage member 30 drives the second swing rod 20 to swing at a large angle, and then the movable contact 21 is driven to swing between two switching positions s1 and s2, so as to realize the connection or breaking of a switch circuit.

Through the design, when a user applies a certain pressing force to one side of the key, the key correspondingly drives the first swing rod 10 to swing, and as one end of the first swing rod 10 is connected to the linkage piece 30, the linkage piece 30 continuously drives the second swing rod 20 to swing, and the second swing rod 20 drives the movable contact piece 10 to swing through the matching relation between the driving head and the supporting piece. The first static contact head a1 is communicated with the first moving contact b1, and the second static contact head a2 is disconnected with the second moving contact b2 through the transmission of driving force through the first swing rod, the linkage piece and the second swing rod in sequence; or, the first static contact a1 is disconnected from the first moving contact b1, and the second static contact a2 is connected with the second moving contact b2, so that the switching circuit is flexibly switched on demand between connection and disconnection.

In summary, the force distance is further enlarged through the linkage piece according to the scheme of the invention, the effect of finally realizing the large-angle swing of the second swing rod through the small-angle driving of the first swing rod is skillfully realized, the stability and reliability of electric breaking and switching on are improved, the compactness of the switch structure is enhanced, and the further realization of the light and thin control of the switch product is facilitated.

It will be appreciated by those skilled in the art that the control switch of the present invention may be a single-key switch, a double-key switch, or a three-key or four-key switch, and that modifications and variations of these designs are within the scope of the present invention.

It should be understood that although the present disclosure has been described in terms of various embodiments, not every embodiment is provided with a separate technical solution, and this description is for clarity only, and those skilled in the art should consider the disclosure as a whole, and the technical solutions in the various embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The above list of detailed descriptions is only specific to practical examples of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications, such as combinations, divisions or repetitions of features, without departing from the technical spirit of the present invention are included in the scope of the present invention.

Claims (10)

1. The breaking structure of the control switch is characterized in that the breaking structure comprises:

a first pendulum bar (10);

A second swing link (20) having one end connected to the first swing link (10);

A linkage (30) having:

a pivot portion (33) pivotally connected to a pressure plate (50) of the control switch;

-a first end (31) connected to said first oscillating bar (10); and

-A second end (32) connected to said second swing link (20);

A seesaw-type contact structure (40) connected to a base of the control switch, comprising:

a support frame (43) to which a movable contact piece (44) is connected;

a first stationary contact assembly (41) disposed on one side of the support (43) and having a first stationary contact portion; and

A second stationary contact assembly (42) disposed on the other side of the support (43) and having a second stationary contact portion;

the movable contact piece (44) comprises a supporting part (440) positioned in the middle, a first movable contact part (441) and a second movable contact part (442) which are respectively positioned at two sides of the supporting part (440), a driving head (201) is arranged on the second swinging rod (20), and the driving head (201) can be abutted to the supporting part (440) so as to drive the movable contact piece (44) to swing between two switching positions (s 1, s 2), so that the switching on or switching off of a switching circuit is realized.

2. A breaking structure of a control switch according to claim 1, characterized in that said linkage member (30) comprises a laminar body (300), which laminar body (300) is housed inside said first oscillating bar (10), said pivot portion (33) being located on said laminar body (300).

3. A breaking structure of a control switch according to claim 2, characterized in that the inner cavity of the first swinging rod (10) is provided with a containing groove (200), and the containing groove (200) is adapted to the shape and the contour of the sheet-shaped body (300).

4. A breaking structure of a control switch according to claim 1, characterized in that the pivot portion (33) of the linkage member (30) is provided with a shaft hole (330), the pressing plate (50) is provided with a driving shaft (501) for cooperating with the shaft hole (330), the driving shaft (501) has an irregular cross section, and a protrusion (331) is provided in the shaft hole (330).

5. A breaking structure of a control switch according to claim 4, characterized in that the cross-section of the driving shaft (501) is a combination of circular arc and tooth, and the protrusion (331) is truncated cone.

6. A breaking structure of a control switch according to claim 1, characterized in that the first end (31) of the linkage (30) extends with a pair of limit lugs (311) which are movably connected to the receiving grooves of the first oscillating bar (10).

7. A breaking structure of a control switch according to claim 1, characterized in that the second end (32) of the linkage (30) is provided with an extending driving block (321) which is co-operatively connected to the driving slot (202) of the second pendulum rod (20).

8. A breaking structure of a control switch according to claim 1, characterized in that said movable contact (44) is V-shaped, the bottom of said supporting portion (440) being in abutment with said fulcrum housing (43).

9. A breaking structure of a control switch according to claim 7, characterized in that the axial hole (330) is at a linear distance from the second end (32) which is half the linear distance between the first end (31) and the second end (32).

10. Control switch, characterized in that it comprises: a base; at least one key for realizing a pressing motion in two directions; a platen (50); the breaking structure of any one of claims 1-9, wherein the first swing rod (10) is connected to the pressing plate (50), and the first swing rod (10) can drive the linkage piece (30) by applying pressing forces in different directions to the keys, and the linkage piece (30) drives the second swing rod (20) to realize large-angle rotation, so that the movable contact piece (21) is driven to swing between two switching positions to realize the connection or disconnection of a switching circuit.