CN106851978A

CN106851978A - Switch

Info

Publication number: CN106851978A
Application number: CN201611217781.5A
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: 2017-06-13

Abstract

The present invention discloses a kind of switch, is electrically connected to circuit board, including：It is provided with the insulating body of receiving space, the fixing terminal mutually held with insulating body, it is sequentially placed into the movable terminal in insulating body receiving space, actuator, and it is overlying on the lid above insulating body, wherein insulating body include bottom wall and from bottom wall surrounding upwards vertically extending side wall, lid is provided with and is affixed on the welding foot that insulating body side wall extends, and the side wall that insulating body is contacted with lid welding foot extends jagged from bottom up, so, after the switch is welded on circuit board, due to the setting of insulating body breach, therefore, tin cream on circuit board will climb along the welding foot madial wall of lid, contacted with more lids, so as to increased the grabbing plate force that switch firmly grasps circuit board, and then switch more securely can be connected on circuit board.

Description

Switch

Technical field

The present invention relates to one kind switch, espespecially a kind of contact push switch.

Background technology

The switch related to switch of the invention at least includes：The insulating body and insulating body surrounded by bottom wall and side wall Mutually the fixing terminal of fixing, is sequentially placed into movable terminal, the actuator of insulating body bottom, and be overlying on above insulating body Lid, wherein insulating body are rectangular-shaped in upper opening, including bottom wall and the side wall that is extended vertically upwards from bottom wall surrounding, Gu Fixed end at least including the contact site with movable terminal contact and extends the weld part that insulating body outside is connected with circuit board, Lid is made up of metal material, substantially plate-like, including main part and main body extend vertically downward with respect to both sides Welding foot, above-mentioned welding foot is affixed on insulating body side wall, and slightly protrudes insulating body bottom wall, when the switch is electrically connected to electricity After the plate of road, in order that it can be better connected on circuit board, in addition to the weld part of fixing terminal is electrically connected with circuit board, The welding foot end of lid is also electrically secured on circuit board.

However, above-mentioned switch at least has the following disadvantages：The connection of the switch and circuit board, is by the tin on circuit board Tin coating on cream and lid passed through stove treatment and reached electric connection, therefore, on the tin cream and lid on circuit board Tin coating contact it is more, its grasp is also bigger, thus switch it is also more stable with the connection of circuit board, however, above-mentioned open The tin coating of the lid of pass is located at welding foot inwall, and welding foot is tightly attached to insulating body lateral wall, so, when it is put After on circuit board, most tin coating is covered and can not be contacted with the tin cream on circuit board by insulating body, therefore, circuit The tin cream of plate is climb along the outer wall of welding foot, so, the switch can not be stably connected to circuit board.

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

The content of the invention

The technical problems to be solved by the invention are：A kind of switch is provided, it can firmly be electrically connected to electricity Road plate.

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

One kind switch, including：Fixing terminal that the insulating body and insulating body for being provided with receiving space mutually hold, successively Movable terminal, the actuator being placed in insulating body receiving space, and it is overlying on the lid above insulating body.Wherein insulate this Body includes bottom wall and the side wall extended vertically upwards from bottom wall surrounding, and lid at least includes being affixed on the welding of insulating body side wall Pin, and the side wall that insulating body is contacted with lid welding foot is provided with the breach upwardly extended from bottom wall.

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 switch is placed on circuit board, when being processed by stove, tin cream on circuit board is removed and welded along lid Beyond the lateral wall of pin is climb, climbed to the welding foot inwall of lid also along above-mentioned breach, so as to strengthen the switch with electricity Grasp between the plate of road, and then the switch can be firmly attached on circuit board.

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 present invention switch.

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

Fig. 3 is the bottom view of 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, present invention switch 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, it is sequentially placed into insulating body 10 and houses Movable terminal 30, actuator 40 in 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 switch 1, and lid 50 is by the through hole 504 and insulating body on welding foot 502 The interference of corresponding blocked block 1042 is clasped and connects on 10, and welding foot 502 is slightly exposed to the bottom wall 100 of insulating body 10. 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 should Switch 1 is connected with circuit board.

When present invention switch 1 is connected with circuit board, because circuit board scribbles tin cream in itself, and the welding of 1 lid 50 is switched Pin 502 is coated with tin layers in madial wall, therefore, when the switch 1 is placed on circuit board, and when entering furnaceman's sequence, on circuit board Tin cream will climb along the welding foot 502 of lid 50, so as to reach the connection with circuit board, therefore, switch 1 and circuit board Whether what is connected consolidates, and the tin cream being just decided by circuit board climbs up the degree of lid 50, that is to say, that tin cream is along lid 50 Climb higher, switch is 1 also more firm with the connection of circuit board, and traditional 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 climb along the outer wall of welding foot 502, So, switch 1 would not be very firm with the connection of circuit board, and present embodiment using on insulating body 10 with lid 50 A breach 1044 is opened up in the second sidewall 104 of the contact of welding foot 502, and the breach 1044 extends to the bottom wall of insulating body 10 100, therefore, when furnaceman's sequence was carried out, the tin cream on circuit board is climb not only along the outer wall of lid 50, can also be along insulation originally The breach 1044 of body 10 is climb in the inwall of welding foot 502 of lid 50, so, has been considerably improved the promptly circuit board of switch 1 Active force, so as to switch 1 more securely can be connected on circuit board.

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. it is a kind of to switch, at least including the insulating body surrounded by side wall and bottom wall, the fixing terminal mutually held with insulating body, Movable terminal, the actuator being placed in insulating body, and the lid on insulating body is overlying on, wherein, lid is provided with along insulation The welding foot that this body sidewall extends, it is characterised in that：The position that insulating body side wall is contacted with the welding foot of lid is provided with Extend to the breach of bottom wall.

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

It is 3. as claimed in claim 1 to switch, it is characterised in that：A pair of sidewalls two ends of the insulating body are more central to concave Buckling parts is fallen into and is formed, the breach is placed in the buckling parts.

It is 4. as claimed in claim 3 to switch, it is characterised in that：The buckling parts is provided with blocked block, and the welding foot of lid is in right Position is answered to be provided with through hole.

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

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

It is 7. as claimed in claim 6 to switch, it is characterised in that：The fixing terminal includes the first and second fixing terminals, its In first, second fixing terminal at least include weld part and contact site, and the second fixing terminal contact site where plane compared with The contact surface of the first fixing terminal is slightly lower.

It is 8. as claimed in claim 7 to switch, it is characterised in that：The contact site of first fixing terminal at least two, and Above-mentioned contact site surrounds semicircle, and the contact site of the second fixing terminal surrounds semicircular contact site in the first fixing terminal Middle position.