CN113471002B

CN113471002B - Electric switch device

Info

Publication number: CN113471002B
Application number: CN202111033207.5A
Authority: CN
Inventors: 廖楚娴; 廖朦朦
Original assignee: Guangdong Xunmi Technology Co ltd
Current assignee: Guangdong Xunmi Technology Co ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2021-11-30
Anticipated expiration: 2041-09-03
Also published as: CN113471002A

Abstract

The invention relates to the technical field of electronic switches and discloses an electric switch device which comprises an upper cover, a base and a guide post, wherein a first contact metal sheet and a second contact metal sheet are arranged on the base; a linear guide cylinder matched with the guide column is fixedly arranged on the upper cover, the guide column is movably inserted into the linear guide cylinder, a working cavity is formed between the upper cover and the base, and the other ends of the first contact metal sheet and the second contact metal sheet are positioned outside the working cavity; the guide post is provided with a connecting bulge, the connecting bulge is connected with an insulating partition plate used for separating the first contact metal sheet from the second contact metal sheet, the connecting bulge is provided with a penetrating groove matched with the first contact metal sheet, and a reset spring is arranged in the working cavity; the reset spring of the electric switch device is convenient to replace and adjustable in hand feeling.

Description

Electric switch device

Technical Field

The invention relates to the technical field of electronic switches, in particular to an electric switch device.

Background

The elements that cause the contacts to open, close, and switch circuits by mechanical operation are called mechanical switches. The button switch is one of the common electronic switches, and the button switch is a switch which utilizes a button to push a transmission mechanism to make or break a movable contact and a fixed contact and realize circuit switching. The button switch is a master control electrical appliance with simple structure and wide application.

The main component of the push-button switch is a return spring, the service life and the hand feeling of the push-button switch are mainly determined by the return spring, however, the push-button switch is usually directly welded on a PCB, and once the return spring has problems, the replacement is not convenient, so that the improvement is needed.

Disclosure of Invention

The invention aims to provide an electric switch device which is convenient and quick to replace a return spring and adjustable in hand feeling.

In order to solve the problems, the invention adopts the following technical scheme:

an electric switch device comprises an upper cover, a base and a guide post, wherein the base is fixedly connected with the upper cover, a first contact metal sheet and a second contact metal sheet are arranged on the base, and the tail ends of the first contact metal sheet and the second contact metal sheet are configured to be mutually contacted in a free state; the guide post is provided with an adjusting screw hole, and an adjusting piece is screwed into the adjusting screw hole; the upper cover is fixedly provided with a linear guide cylinder matched with the guide column, the guide column is movably inserted into the linear guide cylinder, a working cavity is formed between the upper cover and the base, the tail ends of the first contact metal sheet and the second contact metal sheet are both positioned in the working cavity, and the head ends of the first contact metal sheet and the second contact metal sheet are both positioned outside the working cavity; the connecting device is characterized in that a connecting bulge is arranged on the guide post, an insulating partition plate used for separating the first contact metal sheet from the second contact metal sheet is connected to the connecting bulge, a penetrating groove matched with the first contact metal sheet is formed in the connecting bulge, a return spring is arranged in the working cavity, and the top end of the return spring is inserted into the adjusting screw hole.

Preferably, the base is provided with a first positioning bulge matched with the reset spring, the adjusting piece is provided with a second positioning bulge matched with the reset spring, the bottom end of the reset spring is positioned with the base through the first positioning bulge, the top end of the reset spring is positioned with the adjusting piece through the second positioning bulge, the base is provided with a first buffering ring, the first positioning bulge penetrates through the first buffering ring, and the bottom end of the reset spring is tightly attached to the first buffering ring.

Preferably, a holding spring is arranged in the working cavity, the tail end of the second contact metal sheet is arranged in a winding mode to form a P-shaped structure body, a placing hole is formed in the P-shaped structure body, one end of the holding spring is fixedly connected with the base, the other end of the holding spring is located in the placing hole, and the second contact metal sheet is inserted into a pitch gap formed by the holding spring.

Preferably, the straight line guide cylinder is connected with the upper cover in a threaded manner, the connecting bulge is located below the straight line guide cylinder, a second buffer ring is arranged between the connecting bulge and the straight line guide cylinder, the second buffer ring is fixedly connected with the straight line guide cylinder, and a avoiding hole matched with the insulating partition plate is formed in the base.

Preferably, the portable electronic device further comprises a keycap, a connecting column is arranged on the keycap and inserted into the adjusting screw hole, the keycap and the guide column are detachably connected with the connecting column through the adjusting screw hole, and a limiting bulge is arranged on the outer surface of the connecting column.

Preferably, a wheel groove is formed in the insulating partition plate, a roller is arranged in the wheel groove, the roller protrudes out of the wheel groove, and the roller is configured to enable the insulating partition plate to form a section sense in the moving process and enable the section sense to act on the guide post.

Preferably, a support frame used for supporting the upper cover and the second buffer ring is arranged in the working cavity, the support frame and the base are arranged in an integrated mode, and the support frame is located on one side of the guide column.

Preferably, the base is provided with a holding rod, the holding rod is positioned on one side of the insulating partition plate and distributed in a staggered manner, and two ends of the holding rod are respectively fixedly connected with the base and the first contact metal sheet.

Preferably, a positioning groove is formed in the first positioning protrusion, the positioning groove extends downwards to the bottom wall of the base, a rebound spring is arranged in the positioning groove, one end of the rebound spring is abutted to the bottom wall of the base, the other end of the rebound spring extends out of the positioning groove and is located in a return spring, and the rebound spring and the return spring form a concentric structure.

Preferably, the ratio of the gram pressure of the rebound spring to the gram pressure of the return spring is (1.2-1.5): 1.

the invention has the beneficial effects that: the switch still can tear out inside reset spring and rebound spring under the condition that does not dismantle, can be favorable to user's later stage to change reset spring, and the flexibility is good, compares repairability with traditional structure good, has more the feature of environmental protection, need not dismantle whole switch when changing reset spring simultaneously, labour saving and time saving.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Figure 1 is a cross-sectional view of an electrical switching device of the present invention.

Fig. 2 is an enlarged view of a point a in fig. 1.

Fig. 3 is an enlarged view at B in fig. 1.

Fig. 4 is an enlarged view at C in fig. 1.

In the figure:

1. an upper cover; 2. a base; 3. a guide post; 4. a first contact metal sheet; 5. a second contact metal sheet; 6. adjusting the screw hole; 7. an adjustment member; 8. a linear guide cylinder; 9. a working chamber; 10. a connecting projection; 11. an insulating spacer; 12. passing through the slot; 13. a return spring; 14. a first positioning projection; 15. a second positioning projection; 16. a first buffer ring; 17. a retention spring; 18. placing the hole; 19. a second buffer ring; 20. a keycap; 22. a roller; 23. a support frame; 24. a holding rod; 25. positioning a groove; 26. a rebound spring; 27. connecting columns; 28. avoiding the hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the embodiments, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, in the description of the present application, it should be noted that unless otherwise explicitly stated or limited, terms such as mounting, connecting and the like should be construed broadly, and for example, may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Examples

As shown in fig. 1 to 3, an electric switching device includes an upper cover 1, a base 2, and a guide post 3, wherein the base 2 is fixedly connected to the upper cover 1, a first contact metal piece 4 and a second contact metal piece 5 are provided on the base 2, and ends of the first contact metal piece 4 and the second contact metal piece 5 are configured to contact each other in a free state; an adjusting screw hole 6 is formed in the guide post 3, an adjusting piece 7 is screwed into the adjusting screw hole 6, and a screwdriver hole (not shown) is formed in the adjusting piece 7; the upper cover 1 is provided with a linear guide cylinder 8 matched with the guide column 3, the guide column 3 is movably inserted into the linear guide cylinder 8, a working cavity 9 is formed between the upper cover 1 and the base 2, the tail ends of the first contact metal sheet 4 and the second contact metal sheet 5 are both positioned in the working cavity 9, and the head ends of the first contact metal sheet 4 and the second contact metal sheet 5 are both positioned outside the working cavity 9; the contact structure is characterized in that a connecting protrusion 10 is arranged on the guide post 3, an insulating partition plate 11 used for separating the first contact metal sheet 4 from the second contact metal sheet 5 is connected to the connecting protrusion 10, a penetrating groove 12 matched with the first contact metal sheet 4 is formed in the connecting protrusion 10, a return spring 13 is arranged in the working cavity 9, and the top end of the return spring 13 is inserted into the adjusting screw hole 6. The switch still can tear out inside reset spring 13 under the condition that does not dismantle, can be favorable to user's later stage to change reset spring 13, and the flexibility is good, and it is good to compare the repairability with traditional structure, has more the feature of environmental protection, need not dismantle whole switch when changing reset spring 13 simultaneously, labour saving and time saving.

In this embodiment, be provided with on the base 2 and mate first location arch 14 with reset spring 13, be provided with on the regulating part 7 and mate second location arch 15 with reset spring 13, the bottom of reset spring 13 is fixed a position with base 2 through first location arch 14, reset spring 13 top is fixed a position with regulating part 7 through second location arch 15, be provided with first buffer ring 16 on the base 2, first location arch 14 passes first buffer ring 16 and sets up, reset spring 13 bottom is hugged closely with first buffer ring 16, and the bottom cover of reset spring 13 is outside first location arch 14, and the top cover of reset spring 13 is outside second location arch 15, through being provided with first location arch and second location arch, can effectual promotion reset spring stability at the during operation.

In this embodiment, be provided with holding spring 17 in the working chamber 9, 5 ends of second contact sheetmetal are for the curly setting and form the P shape structure, be provided with arrangement hole 18 on the P shape structure, holding spring 17 one end and base 2 fixed connection, the holding spring 17 other end is located arrangement hole 18, second contact sheetmetal 5 inserts in the pitch clearance that holding spring 17 formed, through being provided with holding spring for the second contact sheetmetal can effectually hug closely on first contact sheetmetal, is favorable to promoting the stability when the circuit is put through, can effectually keep the effect of reseing of second contact sheetmetal, avoids because of being separated the time overlength by insulating barrier 11, leads to the second contact sheetmetal to produce the plastic deformation and the bad condition of contact appears, can effectual promotion life.

In this embodiment,

straight line guide

8 and 1 threaded connection of upper cover, it is located to connect arch 10 straight line guide 8's below, it buffers ring 19 to be provided with the second between arch 10 and the straight line guide 8, second buffering ring 19 and straight line guide 8 fixed connection, be provided with on the base 2 and dodge hole 28 with insulating barrier 11 is paird, thereby can change the whole stroke that triggers through adjusting straight line guide 8, the flexibility is good, and the straight line guide 8 triggers the stroke increase when keeping away from base 2, nevertheless triggers the stroke when the straight line guide is close base 2 and reduces, and the controllability is good, simultaneously because reset spring changes the convenience good, changes the reset spring cooperation of different length according to triggering the stroke and uses, and the feeling of whole button is changeable, can satisfy more people's demand and hobby.

In this embodiment, still include key cap 20, be provided with spliced pole 27 on the key cap 20, spliced pole 27 inserts in adjusting screw 6, key cap 20 and guide post 3 can dismantle the connection through adjusting screw 6 and spliced pole 27, spliced pole 27 surface is provided with spacing arch, and spacing bellied bottom surface and the top surface butt of guide post 3 to it is spacing to get into the degree of depth of adjusting screw 6 to spliced pole 27, spliced

pole

27 and 6 clearance fit of adjusting screw.

In this embodiment, a wheel groove (not shown) is formed in the insulating partition 11, a roller 22 is disposed in the wheel groove, the roller 22 protrudes out of the wheel groove, the roller 22 is configured to enable the insulating partition 11 to form a paragraph effect during the movement process and enable the paragraph effect to act on the guide post 3, the paragraph feeling is formed during the whole key pressing process through the roller, the abrasion of the whole mechanism during the movement process is less, and the service life of the first contact metal sheet and the second contact metal sheet can be effectively prolonged.

In this embodiment, a support frame 23 for supporting the upper cover 1 and the second buffer ring 19 is arranged in the working chamber 9, the support frame 23 and the base 2 are integrally arranged, the support frame 23 is located on one side of the guide column 3, and the stability of the whole structure can be improved by arranging the support frame 23.

In this embodiment, the base 2 is provided with the holding rods 24, the holding rods 24 are located on one side of the insulating partition 11 and are distributed in a staggered manner, two ends of the holding rods 24 are respectively fixedly connected with the base 2 and the first contact metal sheet 4, and the holding rods 24 are provided, so that the stability of the first contact metal sheet can be effectively improved.

In this embodiment, it has constant head tank 25 to open in first location arch 14, constant head tank 25 downwardly extending to the diapire department of base 2, be provided with rebound spring 26 in the constant head tank 25, the diapire butt of 26 one end of rebound spring and base 2, the rebound spring 26 other end stretches out constant head tank 25 and is located reset spring 13, rebound spring 26 constitutes concentric structure with reset spring 13, through being provided with rebound spring, can not only play the effect of paragraph, can also promote the dynamics of kick-backing simultaneously.

In some embodiments, the ratio of the spring 26 to the return spring 13 in grams of force is 1.5: 1.

the foregoing is illustrative of embodiments of the present invention, and the scope of the invention is not limited thereto, as any changes or substitutions that do not occur to the skilled artisan are intended to be covered by the scope of the invention, and no element, act, or instruction used herein should be construed as critical or essential unless explicitly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more items, and may be used interchangeably with "one or more". Further, as used herein, the article "the" is intended to include the incorporation of one or more items referenced by the article "the" and may be used interchangeably with "one or more". Further, as used herein, the term "set" is intended to include one or more items, such as related items, unrelated items, combinations of related and unrelated items, and the like, and may be used interchangeably with "one or more". Where only one item is intended, the phrase "only one item" or similar language is used. In addition, as used herein, the term "having," variants thereof, and the like are intended to be open-ended terms. Further, the phrase "based on" is intended to mean "based, at least in part, on" unless explicitly stated otherwise. In addition, as used herein, the term "or" when used in series is intended to be inclusive and may be used interchangeably with "and/or" unless specifically stated otherwise, e.g., if used in conjunction with "or" only one of.

Claims

1. An electrical switching device, characterized by: comprises that

An upper cover;

the base is fixedly connected with the upper cover, a first contact metal sheet and a second contact metal sheet are arranged on the base, and the tail ends of the first contact metal sheet and the second contact metal sheet are configured to be mutually contacted in a free state; the guide post is provided with an adjusting screw hole, and an adjusting piece is screwed into the adjusting screw hole;

the upper cover is fixedly provided with a linear guide cylinder matched with the guide column, the guide column is movably inserted into the linear guide cylinder, a working cavity is formed between the upper cover and the base, the tail ends of the first contact metal sheet and the second contact metal sheet are both positioned in the working cavity, and the head ends of the first contact metal sheet and the second contact metal sheet are both positioned outside the working cavity;

the guide post is provided with a connecting bulge, the connecting bulge is connected with an insulating partition plate used for separating a first contact metal sheet from a second contact metal sheet, the connecting bulge is provided with a penetrating groove matched with the first contact metal sheet, a return spring is arranged in the working cavity, and the top end of the return spring is inserted into the adjusting screw hole;

the base is provided with a first positioning bulge matched with the reset spring, the adjusting piece is provided with a second positioning bulge matched with the reset spring, the bottom end of the reset spring is positioned with the base through the first positioning bulge, the top end of the reset spring is positioned with the adjusting piece through the second positioning bulge, the base is provided with a first buffer ring, the first positioning bulge penetrates through the first buffer ring, and the bottom end of the reset spring is tightly attached to the first buffer ring;

a holding spring is arranged in the working cavity, the tail end of the second contact metal sheet is arranged in a winding mode to form a P-shaped structure body, a placing hole is formed in the P-shaped structure body, one end of the holding spring is fixedly connected with the base, the other end of the holding spring is located in the placing hole, and the second contact metal sheet is inserted into a pitch gap formed by the holding spring;

the straight line guide cylinder is connected with the upper cover in a threaded manner, the connecting bulge is located below the straight line guide cylinder, a second buffering ring is arranged between the connecting bulge and the straight line guide cylinder, the second buffering ring is fixedly connected with the straight line guide cylinder, and a avoiding hole matched with the insulating partition plate is formed in the base.

2. An electrical switching device according to claim 1, wherein: the novel multifunctional key cap is characterized by further comprising a key cap, wherein a connecting column is arranged on the key cap and inserted into the adjusting screw hole, the key cap and the guide column are detachably connected with the connecting column through the adjusting screw hole, and a limiting bulge is arranged on the outer surface of the connecting column.

3. An electrical switching device according to claim 2, wherein: the insulating partition plate is provided with a wheel groove, a roller is arranged in the wheel groove, and the roller protrudes out of the wheel groove.

4. An electrical switching device according to claim 3, wherein: the support frame that is used for propping upper cover and second cushion ring is provided with in the working chamber, the support frame sets up with base formula as an organic whole, the support frame is located one side of guide post.

5. An electrical switching device according to claim 4, wherein: the base is provided with a retaining rod, the retaining rod is positioned on one side of the insulating partition plate and distributed in a staggered mode, and two ends of the retaining rod are fixedly connected with the base and the first contact metal sheet respectively.

6. An electrical switching device according to claim 5, wherein: it has the constant head tank to open in the first location arch, the diapire department of constant head tank downwardly extending to base, be provided with the rebound spring in the constant head tank, the diapire butt of rebound spring one end and base, the rebound spring other end stretches out the constant head tank and is located reset spring, the rebound spring constitutes concentric structure with reset spring.

7. An electrical switching device according to claim 6, wherein: the ratio of the gram pressure of the rebound spring to the gram pressure of the return spring is (1.2-1.5): 1.