CN106710916A

CN106710916A - Pressing switch

Info

Publication number: CN106710916A
Application number: CN201611216988.0A
Authority: CN
Inventors: 方超; 刘银燕; 储婷婷
Original assignee: Chizhou Xin'an Information Technology Co Ltd
Current assignee: Chizhou Xin'an Information Technology Co Ltd
Priority date: 2016-12-26
Filing date: 2016-12-26
Publication date: 2017-05-24

Abstract

The invention discloses a pressing switch which at least comprises an insulating body which is formed by a side wall and a bottom wall through enclosing, a fixed terminal which is fixedly held with the insulating body, a movable terminal and a driving member which are arranged in the insulating body and a cover body which covers on the insulating body, wherein the cover body is provided with a welding pin extending along the side wall of the insulating body. The pressing switch is characterized in that the contact position of the side wall of the insulating body and the welding pin of the cover body is provided with a notch extending to the bottom wall, the movable terminal is disc-shaped, and the movable terminal is arranged in the insulating body and positioned above the fixed terminal and disconnected from or contacted with the fixed terminal so as to achieve circuit switching. Tin paste on a circuit board climbs up along the internal side wall of the welding pin of the cover body to be contacted with more cover body so as to increase the board grabbing force of the pressing switch for grabbing the circuit board and thus the pressing switch is enabled to be more stably connected on the circuit board.

Description

Push switch

Technical field

The present invention relates to a kind of Push switch, espespecially a kind of contact press type Push switch.

Background technology

The Push switch related to Push switch of the present invention at least includes：The insulating body that is surrounded by bottom wall and side wall and The fixing terminal that insulating body mutually holds, is sequentially placed into movable terminal, the actuator of insulating body bottom, and be overlying on insulation originally Lid above body, wherein insulating body are rectangular-shaped in upper opening, including bottom wall and are extended vertically upwards from bottom wall surrounding Side wall, fixing terminal at least includes the contact site contacted with movable terminal and to extend be connected with circuit board outside insulating body Weld part, lid is made up of metal material, substantially plate-like, including main part and main body prolong vertically downward with respect to both sides The welding foot stretched, above-mentioned welding foot is affixed on insulating body side wall, and slightly protrudes insulating body bottom wall, when the Push switch quilt After being electrically connected to circuit board, in order that it can be better connected on circuit board, except the weld part and circuit of fixing terminal Outside plate is electrically connected with, the welding foot end of lid is also electrically secured on circuit board.

However, above-mentioned Push switch at least has the following disadvantages：The connection of the Push switch and circuit board, is by circuit Tin coating on tin cream on plate and lid passed through stove treatment and reached electric connection, therefore, tin cream on circuit board with It is more that tin coating on lid is contacted, and its grasp is also bigger, so that Push switch is also more stable with the connection of circuit board, However, the tin coating of the lid of above-mentioned Push switch is located at welding foot inwall, and welding foot is tightly attached to outside insulating body Side wall, so, after it is placed on circuit board, most tin coating is covered by insulating body and can not be with the tin on circuit board Cream is contacted, therefore, the tin cream of circuit board is climb along the outer wall of welding foot, so, the Push switch can not be connected stably To circuit board.

In view of above drawback, it is necessory to provide a kind of Push switch of improvement, to overcome the defect of above-mentioned Push switch And deficiency.

The content of the invention

The technical problems to be solved by the invention are：A kind of Push switch is provided, it can firmly be electrically connected To circuit board.

In order to solve the above technical problems, the technical scheme is that：

A kind of Push switch, at least including the insulating body surrounded by side wall and bottom wall, with consolidating that insulating body mutually holds Fixed end, movable terminal, the actuator being placed in insulating body, and the lid on insulating body is overlying on, wherein, lid is provided with Along the welding foot that insulating body side wall extends, wherein the position that insulating body side wall is contacted with the welding foot of lid is provided with and prolongs The breach of bottom wall is extended, the movable terminal is in the form of annular discs, and the movable terminal is placed in insulating body, and positioned at fixing terminal Top, and disconnect or contact with fixing terminal, so as to reach circuit switching.

Compared with prior art, the present invention has the advantages that：Bottom wall is extended to because insulating body side wall is provided with Breach, therefore, after the Push switch is placed on circuit board, when being processed by stove, tin cream on circuit board is removed along lid Beyond the lateral wall of welding foot is climb, climbed to the welding foot inwall of lid also along above-mentioned breach, pressed so as to strengthen this Switch and the grasp between circuit board, and then the Push switch can be firmly attached on circuit board.Movable terminal sets Putting can easily switching circuit.

Further improvement of the invention is as follows：

Further, the breach is trapezoidal.

Further, a pair of sidewalls two ends of the insulating body are more central caves inward and forms buckling parts, the breach It is placed in the buckling parts.

Further, the buckling parts is provided with blocked block, and the welding foot of lid is provided with through hole in correspondence position.

Further, insulating body bottom wall is exposed in the welding foot end of the lid.

Further, the welding foot madial wall of the lid is coated with tin layers.

Further, the fixing terminal includes the first and second fixing terminals, wherein first, second fixing terminal is at least It is slightly lower compared with the contact surface of the second fixing terminal including plane where weld part and contact site, and the contact site of the first fixing terminal.

Further, the contact site of first fixing terminal at least two, and above-mentioned contact site surround semicircle, and The contact site of two fixing terminals surrounds semicircular contact site middle position in the first fixing terminal..

Brief description of the drawings

Fig. 1 is the three-dimensional exploded view of Push switch of the present invention.

Fig. 2 is the three-dimensional combination figure of Push switch shown in Fig. 1.

Fig. 3 is the bottom view of Push switch shown in Fig. 1.

Specific embodiment

The present invention is further described with reference to the accompanying drawings and examples.

Refer to shown in Fig. 1 to Fig. 3, Push switch of the present invention 1, for being electrically connected to circuit board (not shown), including： It is provided with fixing terminal 20 that the insulating body 10 of receiving space 106 mutually holds with insulating body 10, is sequentially placed into insulating body 10 Movable terminal 30, actuator 40 in receiving space 106, and it is overlying on the lid 50 of the top of insulating body 10.

Fixing terminal 20 is made up of the first fixing terminal 200 and the second fixing terminal 202, and it is with insulating body 10 through injection And be integrally formed, above-mentioned each fixing terminal 20 includes contact site 204, weld part 206, and from weld part 206 to The connecting portion 208 of the transition of contact site 204, wherein the contact site 204 of the first fixing terminal 200 is remained with movable terminal 30 and connect Touch, and the contact site 204 of the second fixing terminal 202 is in the presence of actuator 40, and movable terminal 30 or contact or disconnect, from And carry out the switching of circuit.In addition, the contact site 204 of the first fixing terminal 200 has two, respectively positioned at the bottom of insulating body 10 Portion both sides, and the only one of which of contact site 204 of the second fixing terminal 20, positioned at two contacts of above-mentioned first fixing terminal 200 The middle position of portion 204, and two contact sites 204 of the first fixing terminal 200 substantially form semicircle, and second is surrounded from periphery The contact site 204 of fixing terminal 202, in addition, the plane where the contact site 204 of the second fixing terminal 202 is solid compared to first Plane where the contact site 204 of fixed end 200 is slightly lower.

Insulating body 10, substantially in the rectangular-shaped of upper opening, including bottom wall 100 and from the surrounding of bottom wall 100 vertically upward The first side wall 102 and second sidewall 104 of extension, the side wall 102,104 of above-mentioned bottom wall 100 and first, second are collectively forming one Receiving space 106, movable terminal 30 and actuator 40 are contained in the receiving space 106, wherein the bottom wall 100 of insulating body 10 Some recesses 1000 are provided with, the shape of these recesses 1000 is consistent with the shape of fixing terminal 20, additionally, insulating body 10 First, the inner surface of second sidewall 102,104 be in arc-shaped, coordinate with movable terminal 30 and actuator 40, and each second Plane where the outer surface two ends of side wall 104 caves inward to form a pair of buckling parts 1040 compared to the plane in center, in the button Be respectively equipped with conjunction portion 1040 blocked block 1042 with the buckle of lid 50, in addition, on the buckling parts 1040 and positioned at above-mentioned card That holds block 1042 is arranged right below a trapeze cut 1044 upwardly extended from bottom wall 100, with the corresponding structure of lid 50 Coordinate.In fact, the shape of above-mentioned breach 1044 can also be rectangle, square, trapezoidal simply one kind therein.

Movable terminal 30, it is substantially in the form of annular discs, it is placed in the receiving space 106 of insulating body 10, and positioned at fixing terminal 20 Top, and with the second fixing terminal 202 or disconnect or contact, so as to reach circuit switching.It is in dome shape, center part compared with Edge raises up, also, the contact site 204 of the second fixing terminal 202 is low compared with the contact site 204 of the first fixing terminal 200, because This, is placed in insulating body 10 and during in normality when movable terminal 30, and movable terminal 30 only has marginal portion and the first fixing end The contact site 204 of son 200 is contacted, and remains contact, and the part that its center raises up is only in the presence of external force Can just be contacted with the contact site 204 of the second fixing terminal 202, so, also ensure that the normal switching between circuit.

Actuator 40, two hollow cylinders not waited by cross-sectional sizes are constituted, and the less cylinder in its middle section is press section 400, the larger cylinder in section is Actuator Division 402, and press section 400 is located at the top of Actuator Division 402, when external force is applied to actuator When 40, Actuator Division 402 acts on movable terminal 30, so as to reach the switching of circuit.

Lid 50, is made up of metal material via punching press or other processing methods, is overlying on the top of insulating body 10, including Tabular roof 500 and a pair of the welding foots 502 extended separately down from the relative both sides of roof 500, the wherein center of roof 500 Perforate 5000 is offered so that the press section 400 of actuator 40 passes through, and each middle position of welding foot 502 offer it is logical It is additionally provided with hangnail 506 on the inside of hole 504, and the through hole 504 to coordinate with the interference clamping of insulating body 10, in addition, lid 50 is welded The second sidewall 104 that pin 502 is close to insulating body 10 extends, and it is more long than the second sidewall 104 of insulating body 10, therefore, when After lid 50 is overlying on insulating body 10, its welding foot 502 slightly exposes the bottom wall 100 of insulating body 10 and is connected with circuit board.

During assembling, fixing terminal 20 is molded in insulating body 10 first, wherein the contact site 204 of fixing terminal 20 shows The bottom wall 100 of insulating body 10 is exposed to, and weld part 206 is then exposed to outside insulating body 10 and be connected with circuit board, then may be used Moved end 30, actuator 40, and lid 50 are sequentially placed into insulating body 10, wherein perforate of the actuator 40 from lid 50 5000 pass in order to apply active force in the Push switch 1, and lid 50 is by the through hole 504 on welding foot 502 and insulation The interference of corresponding blocked block 1042 is clasped and connects on body 10, and welding foot 502 is slightly exposed to the bottom wall of insulating body 10 100.Finally, the welding foot 502 of the bottom wall 100 of insulating body 10 and the weld part 206 of fixing terminal 20 are exposed by lid 50 and The Push switch 1 is connected with circuit board.

When Push switch of the present invention 1 is connected with circuit board, because circuit board scribbles tin cream in itself, and the lid of Push switch 1 50 welding foot 502 is coated with tin layers in madial wall, therefore, when the Push switch 1 is placed on circuit board, and entered furnaceman's sequence When, the tin cream on circuit board will climb along the welding foot 502 of lid 50, so as to reach the connection with circuit board, therefore, Whether what Push switch 1 was connected with circuit board consolidates, and the tin cream being just decided by circuit board climbs up the degree of lid 50, that is, Say, tin cream climbs higher along lid 50, Push switch 1 is also more firm with the connection of circuit board, and traditional Push switch, Due to lid 50 welding foot 502 tightly be attached to the second sidewall 104 of insulating body 10, therefore, the tin cream on circuit board can only It is climb along the outer wall of welding foot 502, so, Push switch 1 would not be very firm with the connection of circuit board, and this embodiment party Formula to be used and open up a breach 1044 in the second sidewall 104 contacted with the welding foot 502 of lid 50 on insulating body 10, and The breach 1044 extends to the bottom wall 100 of insulating body 10, therefore, when furnaceman's sequence was carried out, tin cream on circuit board not only edge The outer wall of lid 50 to climb, the inwall of welding foot 502 that can also be along the breach 1044 of insulating body 10 in lid 50 is climb, this Sample, has been considerably improved the active force that Push switch 1 firmly grasps circuit board, so that Push switch 1 can more securely be connected to electricity On the plate of road.

The present invention is not limited to above-mentioned specific embodiment, one of ordinary skill in the art from above-mentioned design, Without performing creative labour, done a variety of conversion are within the scope of the present invention.

Claims

1. a kind of Push switch, at least including the insulating body surrounded by side wall and bottom wall, the fixation mutually held with insulating body Terminal, the movable terminal being placed in insulating body, actuator, and the lid on insulating body is overlying on, wherein, lid is provided with edge The welding foot that insulating body side wall extends, it is characterised in that：The position that insulating body side wall is contacted with the welding foot of lid The breach for extending to bottom wall is provided with, the movable terminal is in the form of annular discs, and the movable terminal is placed in insulating body, and positioned at solid Fixed end son top, and disconnect or contact with fixing terminal, so as to reach circuit switching.

2. Push switch as claimed in claim 1, it is characterised in that：The breach is trapezoidal.

3. Push switch as claimed in claim 1, it is characterised in that：A pair of sidewalls two ends of the insulating body are compared with mediad Sunken inside simultaneously forms buckling parts, and the breach is placed in the buckling parts.

4. Push switch as claimed in claim 3, it is characterised in that：The buckling parts is provided with blocked block, the welding foot of lid Through hole is provided with correspondence position.

5. Push switch as claimed in claim 4, it is characterised in that：Expose insulating body bottom in the welding foot end of the lid Wall.

6. Push switch as claimed in claim 5, it is characterised in that：The welding foot madial wall of the lid is coated with tin layers.

7. Push switch as claimed in claim 6, it is characterised in that：The fixing terminal includes the first and second fixing ends Son, wherein first, second fixing terminal at least includes being put down where weld part and contact site, and the contact site of the second fixing terminal Face is slightly lower compared with the contact surface of the first fixing terminal.

8. Push switch as claimed in claim 7, it is characterised in that：The contact site at least two of first fixing terminal It is individual, and above-mentioned contact site surrounds semicircle, and the contact site of the second fixing terminal surrounded in the first fixing terminal it is semicircular Contact site middle position.