CN204537900U - Switch - Google Patents
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- CN204537900U CN204537900U CN201520220216.9U CN201520220216U CN204537900U CN 204537900 U CN204537900 U CN 204537900U CN 201520220216 U CN201520220216 U CN 201520220216U CN 204537900 U CN204537900 U CN 204537900U
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- planar portions
- switch
- terminal
- housing
- protuberance
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- Push-Button Switches (AREA)
Abstract
The utility model provides a kind of switch, and described switch is the switch realizing by carrying out soldering to the terminal given prominence to from housing installing on surface.The bottom of housing has: the first planar portions; Second planar portions, it is adjacent with the first planar portions, and terminal protrudes from the second planar portions.And the lower surface of the second planar portions is positioned at the position higher than the lower surface of the first planar portions.Further, protuberance outstanding is downward provided with at the lower surface of the second planar portions.
Description
Technical field
The utility model relates to a kind of switch used in the input operation part of various electronic equipment.
Background technology
In recent years, the small-sized slimming of various electronic equipment and lightweight development.For the switch used in the input operation part of various electronic equipment, be also strongly required to realize miniaturized, slimming.
With reference to accompanying drawing, so existing switch is described.
Fig. 5 is the cutaway view of the configuration status to wiring substrate that existing switch is shown.Fig. 6 is the vertical view of the configuration status to wiring substrate that existing switch is shown.Fig. 7 is the front view of the configuration status to wiring substrate that existing switch is shown.Fig. 8 is the upward view of existing switch.It should be noted that, about accompanying drawing, eliminate the diagram of solder and adopt the shown position being easy to watch.
Existing switch shown in Fig. 5 ~ Fig. 8 is the push switch possessing switch contact portion in resinous housing 1.
As shown in figs.5 and 6, what housing 1 was formed as the recess with upper opening overlooks rectangular shape.As shown in the dotted line in Fig. 6, the peristome of recess is formed as overlooking ellipse.And switch contact portion is formed in recess.
As shown in Figure 5, switch contact portion is made up of the first fixed contact portion 20 of fixed contact portion 10, second and movable link 30.That is, be configured with the first fixed contact portion 10 in the central position of the recess bottom surface of housing 1, and be configured with the second fixed contact portion 20 at the circumferential position place of recess bottom surface.And the mode that the movable link 30 being formed as the dome-shaped of top convex is connected in the second fixed contact portion 20 with its lower end, periphery is configured in recess.The central lower surface of movable link 30 is spaced apart and opposed with the first fixed contact portion 10.
Further, two the first terminals 15 are given prominence to from the lower end, end of the side of the long side direction of housing 1.In addition, two the second terminals 26 are given prominence to from the lower end, end of the opposite side of the long side direction of housing 1.Two the first terminals 15 are connected with the first fixed contact portion 10, and two the second terminals 26 are connected with the second fixed contact portion 20.
Be pasted with screening glass 40 in the sidewall upper face of housing 1, covered by screening glass 40 on recess, thus form existing switch.
Next, be described with reference to the outstanding position etc. of Fig. 7 and Fig. 8 to the underside shape of the bottom of housing 1 and the first terminal 15, second terminal 26.
As shown in Figure 7 and Figure 8, the lower surface of the bottom of housing 1 has: rectangular shape and be formed as the first planar portions 3 of the middle position of tabular surface; And be disposed adjacent in the both sides of long side direction relative to the first planar portions 3, and be formed as the second planar portions 5 of tabular surface in the position slightly higher than the first planar portions 3.That is, the lower surface of housing 1 is configured to arrange with the order of second planar portions 5 of second planar portions 5, first planar portions 3 of a side, the opposing party from right to left on long side direction.And the height and position of these planar portions has difference of height in the position of boundary each other.It should be noted that, second planar portions 5 of a side is set as identical height and position with second planar portions 5 of the opposing party.
Two the first terminals 15 are given prominence to from second planar portions 5 of a side, and two the second terminals 26 are given prominence to from second planar portions 5 of the opposing party.And each the first terminal 15, each second terminal 26 have the extending part (with reference to Fig. 6 and Fig. 8) exposed at the height that the second planar portions 5 with corresponding is identical.Each the first terminal 15, each second terminal 26 are flatly given prominence to outward at this identical height and position.These extending parts are in order to tackle the miniaturization of switch to guarantee that soldering area is arranged.
Existing switch is by realizing installing to welding disk 52,54 soldering being located at wiring substrate 50 by the first terminal 15, second terminal 26.That is, when switch is installed, each welding disk 52,54 applies soldering paste, and be positioned at mode on welding disk 52,54 by switchgear distribution on wiring substrate 50 with the first terminal 15, second terminal 26 of correspondence.Then, via reflow process, welding disk 52,54 be fixed in the soldering of the first terminal 15, second terminal 26 and carry out surface installation.
It should be noted that, under the installment state of switch, for existing switch, the second planar portions 5 being extruded with the first terminal 15, second terminal 26 is set in the position higher than the first planar portions 3.Therefore, absorbed the height dimension of solder by the amount of their difference of height, thus can abut with the first planar portions 3 of housing 1 or install close to the state on wiring substrate 50.Thus, even if switch can be mounted to, to receiving superfluous pressing force during the push in switch contact portion, also can be born the state of this pressing force by wiring substrate 50.
And, along with the development of the miniaturization of switch, the first terminal 15 interval each other and the second terminal 26 interval each other diminish, and welding disk 52,54 is formed as rectangular shape usually, thus the stage portion of the orthogonal linearity of the projected direction respective relative to the first terminal 15, second terminal 26 is all had to be configured to have in the second planar portions 5 and the boundary of the first planar portions 3 of second planar portions 5 of a side and the boundary of the first planar portions 3 and the opposing party.
It should be noted that, as the look-ahead technique documentation & info relevant to this utility model, be known to such as patent documentation 1 (No. 2004-171789, Japanese Kokai JP).
But, in existing switch, if the direction when refluxing such as by the long side direction along housing 1, to become second planar portions 5, first planar portions 3 of a side, the mode of order of second planar portions 5 of the opposing party enters in reflow ovens, then there is different situation on melting opportunity of the soldering paste at each second planar portions 5 place.
Such as, when second planar portions 5 side of a side soldering paste first melting, corresponding the first terminal 15 is pulled downwards due to the solder of melting each other, thus applies revolving force to switch self.That is, produce with the stage portion of the linearity between second planar portions 5 of a side and the first planar portions 3 for fulcrum and make switch from rolling oblique phenomenon in long side direction, thus the second terminal 26 of second planar portions 5 side of the opposing party likely can lift.
Utility model content
The utility model is made to solve so existing problem, can suppress the situation tilting to install when reflow soldering.
The switch that the utility model provides is the switch realizing by carrying out soldering to the terminal given prominence to from housing installing on surface, and it is characterized in that, the bottom of housing has: the first planar portions; Second planar portions, it is adjacent with the first planar portions, and terminal protrudes from the second planar portions.And the lower surface of the second planar portions is positioned at the position higher than the lower surface of the first planar portions, be provided with protuberance outstanding downward at the lower surface of the second planar portions.
By this structure, when carrying out reflow soldering to wiring substrate, even if because soldering paste produces corresponding terminal by the phenomenon pulled downwards in the second planar portions side melting, also can be connected to revolving force wiring substrate limiting and puts on switch self by the protuberance being located at the second planar portions, thus switch can be suppressed by the situation tilting to install.
Switch of the present utility model can reduce the situation tilting to install when reflow soldering.
In addition, the position of the front end of the preferred protuberance of the utility model is the position higher than the position of the lower surface of the first planar portions or the position identical with the position height of the lower surface of the first planar portions.
In addition, the preferred protuberance of the utility model and described first planar portions are integrally formed.
Accompanying drawing explanation
Fig. 1 is the cutaway view of the configuration status to wiring substrate of the switch that execution mode of the present utility model is shown.
Fig. 2 is the front view of the configuration status to wiring substrate of the switch that execution mode of the present utility model is shown.
Fig. 3 is the upward view of the switch of execution mode of the present utility model.
Fig. 4 is the upward view of the switch of the variation of execution mode of the present utility model.
Fig. 5 is the cutaway view of the configuration status to wiring substrate that existing switch is shown.
Fig. 6 is the vertical view of the configuration status to wiring substrate that existing switch is shown.
Fig. 7 is the front view of the configuration status to wiring substrate that existing switch is shown.
Fig. 8 is the upward view of existing switch.
Symbol description:
10 first fixed contact portions
15 the first terminals
20 second fixed contact portions
26 second terminals
30 movable links
40 screening glass
50 wiring substrates
52,54 welding disks
61,61A housing
63 first planar portions
63A extended portion
65 second planar portions
71 protuberances
Embodiment
Below, with reference to Fig. 1 ~ Fig. 4, execution mode of the present utility model is described.It should be noted that, the symbol identical to the portion markings identical with existing structure and detailed.
(execution mode)
Fig. 1 is the cutaway view of the configuration status to wiring substrate of the switch that execution mode of the present utility model is shown.Fig. 2 is the front view of the configuration status to wiring substrate of the switch that execution mode of the present utility model is shown.Fig. 3 is the upward view of the switch of execution mode of the present utility model.Fig. 4 is the upward view of the switch of the variation of execution mode of the present utility model.It should be noted that, about accompanying drawing, adopt eliminate solder diagram and be easy to watch shown position.
The switch of execution mode is same with existing switch, in resinous housing 61, possess switch contact portion.
Housing 61 is overlooked as rectangular shape and is had the recess of upper opening.And switch contact portion is formed in this recess.The peristome of recess is formed as overlooking ellipse in the same manner as existing switch.
Switch contact portion is same with existing switch contact portion, is made up of the first fixed contact portion 20 of fixed contact portion 10, second and movable link 30.That is, the first fixed contact portion 10 is configured with in the central position of the recess bottom surface of housing 61.And, be configured with the second fixed contact portion 20 at the circumferential position place of the recess bottom surface of housing 61.Further, the mode that the movable link 30 being formed as the dome-shaped of top convex is connected in the second fixed contact portion 20 with its lower end, periphery is configured in recess.The central lower surface of movable link 30 is spaced apart and opposed with the first fixed contact portion 10.
Further, two the first terminals 15 be connected with the first fixed contact portion 10 are given prominence to from the lower end, end of the side of the long side direction of housing 61.Two the second terminals 26 be connected with the second fixed contact portion 20 are given prominence to from the lower end, end of the opposite side of the long side direction of housing 61.
Be pasted with screening glass 40 in the sidewall upper face of housing 61, thus recess is covered by screening glass 40.
The switch of execution mode is compared with existing switch, and difference is the lower surface configuration of the bottom of housing 61.By this structure, switch is suppressed to be installed with the state tilted when being installed to wiring substrate by switch.Below its reason is described.
As shown in Figure 1, Figure 3, the lower surface of the bottom of housing 61 has: rectangular shape and be formed as the first planar portions 63 of the middle position of tabular surface; Be disposed adjacent in the both sides of long side direction relative to the first planar portions 63, and be formed as the second planar portions 65 of tabular surface in the position slightly higher than the first planar portions 63, above structure is identical with existing switch.
That is, the lower surface of housing 61 is configured in the same manner as existing switch, and long side direction arranges with the order of second planar portions 65 of second planar portions 65, first planar portions 63 of a side, the opposing party from right to left.And, be set as that the position of the boundary between each and the first planar portions 63 of two the second planar portions 65 of identical height and position has the stage portion of linearity respectively.
And two the first terminals 15 are given prominence to from second planar portions 65 of a side, two the second terminals 26 are given prominence to from second planar portions 65 of the opposing party, and this point is identical with existing switch.And, each the first terminal 15 and each second terminal 26 have the extending part (with reference to Fig. 3) exposed at the height that the second planar portions 65 with corresponding is identical, and flatly give prominence to outward at this height and position place, this point is also identical with existing switch.It should be noted that, each the first terminal 15 and each second terminal 26 comprise above-mentioned extending part and can carry out soldering respectively.
In the switch of execution mode, it is circular and outstanding downwards protuberance 71 that housing 61 is provided with horizontal cross-section integratedly, and this protuberance 71 is provided with two in each second planar portions 65 of housing 61, and this point is different from existing switch.
The front end of each protuberance 71 is dome shape, and the position of front end is the position highly identical with the first planar portions 63 of housing 61 or the position slightly higher than it.That is, each protuberance 71 is set as the height and position outstanding unlike the first planar portions 63.
And, as the setting position of protuberance 71, adopt and housing 61 outer edge near corner one_to_one corresponding and the position that arranges.That is, as shown in Figure 3, each protuberance 71 relative to for illustrated two welding disks 52 corresponding with two the first terminals 15 of dotted line and two welding disks 54 corresponding with two the second terminals 26, in foreign side's position configuration of short brink.Further, each protuberance 71 is set in from extending part that second planar portions 65 the expose adjacent position respective with the first terminal 15, second terminal 26.
In other words, observe from the center of switch, four protuberances 71 set to become position relationship symmetrical between two relative to the long side direction of housing 61, and set also to become position relationship symmetrical between two relative to short side direction.And two the first terminals 15 are derived from the position between two protuberances 71 that the second planar portions 65 a side is arranged.Two the second terminals 26 are derived from the position between two protuberances 71 that the second planar portions 65 the opposing party is arranged.
It should be noted that, the position that arranges of protuberance 71 is not particularly limited, but preferably arranges near the outer edge of housing 61.If the especially corner of housing 61, be then easy to arrange in area, thus be more preferably.
The switch of execution mode is as above formed.With regard to the action of the switch of execution mode, when carrying out pressing operation via screening glass 40 downwards to the central portion position of movable link 30, movable link 30 carries out rotary movement.Thus, the lower surface of movable link 30 contacts with the first fixed contact portion 10, thus switch contact portion becomes on-state, becomes conducting state between the first terminal 15, second terminal 26.When removing this operation, movable link 30 is restored to the dome-shaped of top convex originally due to the recuperability of self, turn back to the off-state in the switch contact portion shown in Fig. 1.It should be noted that, movable link 30 plays function as moving contact.
And the switch of execution mode is same with existing switch, the first terminal 15, second terminal 26 carries out surface to the welding disk 52,54 being located at wiring substrate 50 by soldering and installs.
When the installation of switch, apply soldering paste to each welding disk 52,54.Then, mode on welding disk 52,54 is positioned at by switchgear distribution on wiring substrate 50 with the first terminal 15, second terminal 26 of correspondence.Afterwards, via reflow process, welding disk 52,54 is fixed in the soldering of the first terminal 15, second terminal 26, thus switch is installed.
When the wiring substrate 50 switch of execution mode being furnished with soldering paste to Tu Shang welding disk 52,54 configures, the state that the first planar portions 63 of housing 61 and the front end of protuberance 71 being located at each second planar portions 65 become close to relative to the upper surface of wiring substrate 50 or abut.
Next, enter in reflow ovens, even if occur in the melting not square one on opportunity of each second planar portions 65 place soldering paste, the switch of execution mode, compared with existing switch, also can reduce switch from rolling oblique phenomenon in long side direction.
Namely, such as, when the first melting of the soldering paste of second planar portions 65 side of a side, if the first terminal of correspondence 15 is pulled downwards due to the solder of this melting each other, the mode making housing 61 decline with the first terminal 15 side thus tilts a little, then the front end of two protuberances 71 arranged in second planar portions 65 side of a side of housing 61 is connected on wiring substrate 50 at first.
And the front end position setting be connected on wiring substrate 50 of these two protuberances 71 becomes the neighbouring position of the first terminal 15, and thus compared with existing switch, the distance declined the first terminal 15 side suppresses for less.Thereby, it is possible to restriction puts on switch self and makes it roll oblique revolving force at long side direction, thus the inclination of switch self can be reduced.
It should be noted that, due to the molten condition of the solder of welding disk 52,54, the shape setting etc. of the first planar portions 63, also worry can produce the short side direction side isoclinal situation of switch self to housing 61, but as the switch of execution mode, as long as the corner near the outer edge of housing 61 arranges protuberance 71 correspondingly, then switch self is suppressed too to the inclination of its short side direction side etc.
As above, the switch of execution mode is that near the first terminal 15, position is provided with the structure of two protuberances 71 in second planar portions 65 of a side.By this structure, even if make the first terminal 15 be pulled each other due to the first melting of soldering paste of second planar portions 65 side of a side, switch also can be reduced from rolling oblique phenomenon in long side direction downwards.The switch of execution mode, compared with existing switch, can suppress the situation tilting to install when reflow soldering, thus can realize stable backflow installation.
It should be noted that, cross sectional shape and the front end geometry of protuberance 71 are not particularly limited.Such as, the horizontal cross-section of protuberance 71 also can be rectangular shape, polygon-shaped etc., and front end also can be the shape beyond dome shape.
In addition, the setting position of protuberance 71, quantity are also not limited to respectively arrange one in the corner of the lower surface of housing 61.
Such as, can be formed in such as inferior mode: on the housing with above-mentioned protuberance 71, so second planar portions 65 of a side the first terminal 15 each other and the second terminal 26 of second planar portions 65 of the opposing party a protuberance 71 is also set respectively each other.In addition, also can be formed in such as inferior mode: only at the first terminal 15 each other, the second terminal 26 arranges a protuberance 71 each other respectively.
The front end of preferred protuberance 71 is given prominence to unlike the first planar portions 63.This is because, consider the mode of operation of switch, preferably become as the first planar portions 63 immediately below operating position the installment state accepted by wiring substrate 50.
And the purpose of this utility model is the situation reducing switch self inclination installation when reflow soldering.As its topology example, above-mentioned explanation is carried out to the example arranging protuberance 71, but except protuberance 71, also can adopt the structure that can obtain equal effect.
The structure shown in Fig. 4 can be enumerated as such variation.Replace and use the structure shown in housing 61, Fig. 4 being provided with above-mentioned protuberance 71 use housing 61A and form.
The lower surface of the bottom of housing 61A does not arrange protuberance 71, alternatively structure, the first planar portions 63 has been wholely set extended portion 63A.That is, extended portion 63A plays function as protuberance.The structure that protuberance is formed as one with the first planar portions 63 one-tenth.
The extended portion 63A (protuberance) of the first planar portions 63 is the narrow linearity of width.And the outer rim (outer rim of the short brink of housing 61A) of extended portion 63A from the first planar portions 63 towards the second planar portions 65 is given prominence to.If use other form of presentations about extended portion 63A, then extended portion 63A is located at the lower surface of the second planar portions 65, gives prominence to downward, and is integrally formed with the first planar portions 63.
It should be noted that, the height and position of extended portion 63A is same with protuberance 71 is the position highly identical with the first planar portions 63 or the position slightly higher than it.That is, the height and position of extended portion 63A is preferably set to becomes the height and position outstanding unlike the first planar portions 63.And the overhang to the second planar portions 65 of extended portion 63A is preferably set to, make the end position as outstanding side become position near the first terminal 15, second terminal 26 as far as possible.
Even if be the structure of this variation, extended portion 63A also plays same effect with above-mentioned protuberance 71, and thus when reflow soldering, switch self is inhibited to the isoclinal phenomenon in long side direction side.It should be noted that, same with the situation of protuberance 71, also can with extended portion 63A is arranged on the first terminal 15 each other, the second terminal 26 each other etc. mode formed.
It should be noted that, in the switch of the execution mode be explained above, the shape settings such as the profile of housing 61,61A are unrestricted.In addition, the derivation position of the first terminal 15, second terminal 26, the structure in radical, switch contact portion etc. are also unrestricted.
Industrial applicibility
Switch of the present utility model is when reflow soldering, and the situation tilting to install is suppressed.Switch of the present utility model is mainly useful in the input operation part etc. of various electronic equipment.
Claims (3)
1. a switch, it is the switch realizing by carrying out soldering to the terminal given prominence to from housing installing on surface, it is characterized in that,
The bottom of described housing has:
First planar portions;
Second planar portions, it is adjacent with described first planar portions, and described terminal protrudes from described second planar portions,
The lower surface of described second planar portions is positioned at the position higher than the lower surface of described first planar portions,
Protuberance outstanding is downward provided with at the lower surface of described second planar portions.
2. switch according to claim 1, is characterized in that,
The position of the front end of described protuberance is the position higher than the position of the lower surface of described first planar portions or the position identical with the position height of the lower surface of described first planar portions.
3. switch according to claim 1, is characterized in that,
Described protuberance and described first planar portions are integrally formed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014082465A JP6435500B2 (en) | 2014-04-14 | 2014-04-14 | switch |
| JP2014-082465 | 2014-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204537900U true CN204537900U (en) | 2015-08-05 |
Family
ID=53751872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520220216.9U Active CN204537900U (en) | 2014-04-14 | 2015-04-13 | Switch |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6435500B2 (en) |
| CN (1) | CN204537900U (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0581916U (en) * | 1992-04-02 | 1993-11-05 | アルプス電気株式会社 | Electrical parts with terminals |
| JPH10321077A (en) * | 1997-05-19 | 1998-12-04 | Alps Electric Co Ltd | Electrical component and attaching structure of the same electrical component |
| JP2000058588A (en) * | 1998-08-14 | 2000-02-25 | Toyo Commun Equip Co Ltd | Land-grid-array electronic component and printed board |
| JP5447344B2 (en) * | 2010-11-11 | 2014-03-19 | ミツミ電機株式会社 | switch |
-
2014
- 2014-04-14 JP JP2014082465A patent/JP6435500B2/en active Active
-
2015
- 2015-04-13 CN CN201520220216.9U patent/CN204537900U/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015204183A (en) | 2015-11-16 |
| JP6435500B2 (en) | 2018-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |