CN212848157U - Miniature waterproof microswitch with built-in resistor - Google Patents
Miniature waterproof microswitch with built-in resistor Download PDFInfo
- Publication number
- CN212848157U CN212848157U CN202021816595.5U CN202021816595U CN212848157U CN 212848157 U CN212848157 U CN 212848157U CN 202021816595 U CN202021816595 U CN 202021816595U CN 212848157 U CN212848157 U CN 212848157U
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- cavity
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- waterproof
- built
- terminal
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- 239000003292 glue Substances 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims abstract description 6
- 210000002105 tongue Anatomy 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 10
- 125000004122 cyclic group Chemical group 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- WVHNUGRFECMVLQ-UHFFFAOYSA-N 1,3-dichloro-2-(2,4-dichlorophenyl)benzene Chemical compound ClC1=CC(Cl)=CC=C1C1=C(Cl)C=CC=C1Cl WVHNUGRFECMVLQ-UHFFFAOYSA-N 0.000 description 8
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000005476 soldering Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 150000003071 polychlorinated biphenyls Chemical group 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Images
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- Switch Cases, Indication, And Locking (AREA)
- Push-Button Switches (AREA)
- Adjustable Resistors (AREA)
Abstract
The utility model discloses a miniature waterproof micro-gap switch of in-band resistance, including shell, cap, waterproof button, conductive component and circuit board subassembly, the inside appearance chamber that is provided with of shell, conductive component is including being used for the binding post of being connected with the conductor wire electricity, it includes first cavity and second cavity to hold the chamber, the junction of first cavity and second cavity is provided with the base, binding post fixes on the base and extends to the second cavity is indoor, circuit board subassembly sets up in the second cavity, binding post forms the electricity with the conductor wire through circuit board subassembly and is connected, the second cavity is provided with the opening that is used for the cap lid to close, the cap is provided with the through-hole that supplies the conductor wire to wear to establish, fill waterproof glue in the second cavity. The utility model provides a can play waterproof effect, simple structure, the size is littleer, with the built-in miniature waterproof micro-gap switch of taking built-in resistance of circuit board subassembly built-in the switch.
Description
Technical Field
The utility model belongs to the technical field of micro-gap switch, especially, miniature waterproof micro-gap switch of in-band resistance.
Background
The microswitch is a switch which has a minute contact interval and a quick action mechanism, performs a switching action by a specified stroke and a specified force, is covered by a shell, and has a driving rod outside. At present, microswitches include the shell and set up the conductive component in the casing, and conductive component includes binding post and the base that is used for binding post to fix. In most occasions, it has waterproof performance to need the micro-gap switch, current micro-gap switch waterproof construction is complicated, and need add a waterproof shell at the micro-gap switch base, it is great to lead to the micro-gap switch volume, and present micro-gap switch often cooperates outside resistance to use together, switch and resistance weld on the circuit board together usually, the structure that all adopts external circuit board and resistance at present constitutes the use, this is big just to lead to the holistic occupation space of product, be unfavorable for the storage of product, transportation and erection use, and external circuit board and resistance can't satisfy waterproof requirement.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a can play waterproof effect, simple structure, the size is littleer, with the built-in miniature waterproof micro-gap switch of taking built-in resistance of circuit board subassembly built-in the switch.
In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a miniature waterproof micro-gap switch of in-band resistance, includes shell, cap, waterproof button, conductive component and circuit board assembly, the inside appearance chamber that is used for conductive component and circuit board assembly to install that is provided with of shell, conductive component is including being used for the binding post of being connected with the conductor wire electricity, it includes first cavity and second cavity to hold the chamber, the junction of first cavity and second cavity is provided with carries out divided base with first cavity and second cavity, binding post fixes and extends on the base and to the second cavity in, circuit board assembly sets up in the second cavity, binding post forms the electricity with the conductor wire through the circuit board assembly and is connected, the second cavity is provided with the opening that is used for the cap lid to close, the cap is provided with the through-hole that supplies the conductor wire to wear to establish, fill waterproof glue in the second cavity.
Adopt above-mentioned scheme, through setting up first cavity and second cavity in the shell, can install conductive component in first cavity, install circuit board subassembly in the second cavity, because conductive component is more, and circuit board subassembly mainly uses the PCB board as leading, therefore the second cavity can be relatively first cavity comparatively "lengthen" some, can supply the PCB board to put the installation flat can, consequently can reduce the whole size of shell, reach the miniaturized purpose of micro-gap switch. First cavity passes through waterproof button and base and forms a confined space, can prevent that steam from getting into in the first cavity to fill waterproof glue in the second cavity, can reach waterproof mesh through waterproof glue parcel with the wiring department of binding post, circuit board assembly and conductor wire on the one hand, on the other hand, the waterproof glue of filling fills in the second cavity, can further prevent that steam from entering into first cavity through the base in, improves waterproof grade. Simple structure and convenient installation.
As the utility model discloses a further setting, circuit board assembly includes the PCB board, be provided with on the PCB board and supply the electrically conductive first welding hole of terminal welding of binding post and be used for the electrically conductive second welding hole of electrically conductive line welding.
By adopting the scheme, the wiring terminal and the conductive wire can be respectively welded and fixed on the PCB through the first welding hole and the second welding hole, so that stable electric connection is realized.
As the utility model discloses a further setting, the inner wall of second cavity is provided with a plurality of spacing steps with the PCB board butt along opening circumference, the cap is provided with to the extension in the second cavity along opening circumference and can supports the cyclic annular step that presses on the PCB board, be provided with the encapsulating hole of the encapsulating of being convenient for on the PCB board.
Adopt above-mentioned scheme, glue filling is carried out to inside through the encapsulating hole on the PCB board, through setting up spacing step in the second cavity for can form a encapsulating space that is used for filling waterproof glue between PCB board and the base, fix the height of encapsulating through the encapsulating space, can practice thrift waterproof glue on the one hand, on the other hand can make the abundant packing of waterproof glue that fills between PCB board and base in the encapsulating space, prevent that the inhomogeneous phenomenon of waterproof glue encapsulating from appearing from taking place. Set up cyclic annular step on the cap, guarantee the position of PCB board in the second cavity for the PCB board forms stable installation through the centre gripping of spacing step and cyclic annular step.
As the utility model discloses a further setting, the shell is provided with a plurality of blocks tongue along the outside extension of open-ended lateral wall, the position that the lateral wall of cap corresponds the block tongue is provided with the buckle groove with block tongue cooperation joint, the buckle inslot is provided with the anticreep piece, be provided with on the block tongue behind the block tongue embedding buckle inslot can with the joint hole of anticreep piece cooperation anticreep.
By adopting the scheme, the shell cover can be quickly installed on the opening through the clamping of the clamping tongue and the clamping groove, and the clamping block on the clamping tongue is matched with the anti-falling block in the clamping groove, so that the base and the shell cover can be prevented from being separated from each other. Simple structure and convenient installation.
As a further setting of the utility model, binding post includes first terminal, second terminal and third terminal, be provided with the first conducting wire of connecting first terminal and conductor wire on the PCB board, connect the second conducting wire of second terminal and conductor wire and connect the third conducting wire of third terminal and conductor wire, be provided with resistive element on first conducting wire and/or second conducting wire and/or the third conductor wire.
By adopting the scheme, the first conducting circuit, the second conducting circuit and the third conducting circuit are all provided with the resistance elements, the resistance elements are welded on the PCB, and the resistance elements and the PCB are mounted in the shell together, so that the purpose of internally arranging the resistance is achieved, the structure is simple, the processing is convenient, the micro switch is miniaturized, and the product transportation is more convenient.
The present invention will be further described with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic exterior view of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an embodiment of the present invention;
fig. 4 is an appearance diagram of the housing according to the embodiment of the present invention.
Detailed Description
The specific embodiment of the utility model is shown in fig. 1-4, a miniature waterproof micro-gap switch with built-in resistance, comprising a housing 1, a housing cover 2, a waterproof button 3, a conductive component 4 and a circuit board component 5, wherein the waterproof button 3 comprises a flexible waterproof sleeve 31 sleeved on the button, a small end 31a of the flexible waterproof sleeve 31 is sleeved on the button, a large end 31b of the flexible waterproof sleeve 31 is in interference fit with an annular clamping groove 11 on the housing 1, thereby achieving sealing connection, a containing cavity 12 for installing the conductive component 4 and the circuit board component 5 is arranged inside the housing 1, the conductive component 4 comprises a wiring terminal 41 electrically connected with a conductive wire 6, the containing cavity 12 comprises a first cavity 121 and a second cavity 122, a base 13 for separating the first cavity 121 from the second cavity 122 is arranged at the junction of the first cavity 121 and the second cavity 122, binding post 41 fixes on base 13 and extends to second chamber 122 in, circuit board assembly 5 sets up in second chamber 122, binding post 41 forms the electricity with conducting wire 6 through circuit board assembly 5 and is connected, second chamber 122 is provided with the opening 1221 that is used for the cap 2 lid to close, cap 2 is provided with the through-hole 21 that supplies conducting wire 6 to wear to establish and the fluting 22 of the encapsulating of being convenient for, fill waterproof glue in the second chamber 122. Because the number of components of the conductive assembly 4 is large, and the circuit board assembly 5 mainly uses the PCB 51, the second chamber 122 can be slightly longer than the first chamber 121, and the PCB 51 can be flatly mounted, so that the overall size of the housing 1 can be reduced, and the purpose of miniaturizing the microswitch can be achieved.
In the present embodiment, the circuit board assembly 5 includes a PCB 51, and the PCB 51 is provided with a first soldering hole 511 for soldering the terminal 41 and a second soldering hole 512 for soldering the conductive wire 6.
In this embodiment, the inner wall of the second chamber 122 is provided with a plurality of limiting steps 1222 abutted against the PCB 51 along the circumferential direction of the opening 1221, the housing cover 2 is provided with an annular step 23 capable of abutting against the PCB 51 extending into the second chamber 122 along the circumferential direction of the opening 1221, and the PCB 51 is provided with a glue filling hole 513 facilitating glue filling. Carry out the encapsulating through encapsulating hole 513 on the PCB board 51 to inside, set up spacing step 1222 in second cavity 122, can form an encapsulating space C that is used for pouring the waterproof adhesive between PCB board 51 and the base 13, fix the height of encapsulating through encapsulating space C, can practice thrift the waterproof adhesive on the one hand, on the other hand can make the filling that the waterproof adhesive that pours between PCB board 51 and base 13 is abundant in encapsulating space C, prevent that the inhomogeneous phenomenon of waterproof adhesive encapsulating from taking place.
In this embodiment, the housing 1 is provided with a plurality of locking tongues 14 extending outwards along the side wall of the opening 1221, a locking groove 24 engaged with the locking tongues 14 is provided at a position of the side wall of the housing cover 2 corresponding to the locking tongues 14, an anti-falling block 241 is provided in the locking groove 24, and a locking hole 141 which can be engaged with the anti-falling block 241 after the locking tongues 14 are embedded in the locking groove 24 is provided on the locking tongues 14.
In this embodiment, the connection terminal 41 includes a first terminal 411, a second terminal 412 and a third terminal 413, the PCB 51 is provided with a first conductive trace 52 connecting the first terminal 411 and the conductive line 6, a second conductive trace 53 connecting the second terminal 412 and the conductive line 6, and a third conductive trace 54 connecting the third terminal 413 and the conductive line 6, and the first conductive trace 52 and/or the second conductive trace 53 and/or the third conductive trace 54 is provided with a resistive element 55.
The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.
Claims (5)
1. The utility model provides a miniature waterproof micro-gap switch of in-band built-in resistance, includes shell, cap, waterproof button, conductive component and circuit board subassembly, its characterized in that: the utility model discloses a circuit board assembly, including the shell, the junction of first cavity and second cavity is provided with the base that carries out the partition with first cavity and second cavity, binding post fixes on the base and extends in to the second cavity, circuit board assembly sets up in the second cavity, binding post forms the electricity with the conductor wire through the circuit board assembly and is connected, the second cavity is provided with the opening that is used for the cap lid to close, the cap is provided with the through-hole that supplies the conductor wire to wear to establish, fill waterproof glue in the second cavity.
2. The miniature waterproof microswitch with built-in resistor of claim 1, wherein: the circuit board assembly comprises a PCB, wherein a first welding hole for welding a wiring terminal to be conductive and a second welding hole for welding a conductive wire to be conductive are formed in the PCB.
3. The miniature waterproof microswitch with built-in resistor of claim 2, wherein: the inner wall of second cavity is provided with a plurality of spacing steps with the PCB board butt along opening circumference, the cap is provided with along opening circumference to extending in the second cavity and can supports the cyclic annular step that presses on the PCB board, be provided with the encapsulating hole of the encapsulating of being convenient for on the PCB board.
4. The micro waterproof microswitch with built-in resistor of claim 1, 2 or 3, wherein: the shell is provided with a plurality of clamping tongues along the outward extension of the side wall of the opening, the position of the side wall of the shell cover, corresponding to the clamping tongues, is provided with a clamping groove clamped with the clamping tongues in a matched mode, anti-falling blocks are arranged in the clamping groove, and clamping holes which can be matched with the anti-falling blocks to prevent falling after the clamping tongues are embedded into the clamping groove are formed in the clamping tongues.
5. The miniature waterproof microswitch with built-in resistor of claim 2, wherein: the wiring terminal comprises a first terminal, a second terminal and a third terminal, a first conductive line for connecting the first terminal and the conductive line, a second conductive line for connecting the second terminal and the conductive line and a third conductive line for connecting the third terminal and the conductive line are arranged on the PCB, and a resistance element is arranged on the first conductive line and/or the second conductive line and/or the third conductive line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021816595.5U CN212848157U8 (en) | 2020-08-26 | 2020-08-26 | Miniature waterproof microswitch with built-in resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021816595.5U CN212848157U8 (en) | 2020-08-26 | 2020-08-26 | Miniature waterproof microswitch with built-in resistor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN212848157U true CN212848157U (en) | 2021-03-30 |
| CN212848157U8 CN212848157U8 (en) | 2021-08-17 |
Family
ID=75141403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021816595.5U Active CN212848157U8 (en) | 2020-08-26 | 2020-08-26 | Miniature waterproof microswitch with built-in resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212848157U8 (en) |
-
2020
- 2020-08-26 CN CN202021816595.5U patent/CN212848157U8/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN212848157U8 (en) | 2021-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CU01 | Correction of utility model |
Correction item: Patentee Correct: DONGNAN ELECTRONICS Co.,Ltd. False: Southeast Electronics Co.,Ltd. Number: 14-01 Page: The title page Volume: 37 Correction item: Patentee Correct: DONGNAN ELECTRONICS Co.,Ltd. False: Southeast Electronics Co.,Ltd. Number: 14-01 Volume: 37 |
|
| CU01 | Correction of utility model |