CN214624819U - Button switch of lap joint small-size electrical apparatus - Google Patents

Abstract

The utility model discloses a button switch of lap joint small-sized electrical appliance, which comprises a shell, a circuit board, a safety resistor, a pressing component, a base and a wiring board, wherein the wiring board comprises an upper waste material row, a lower waste material row, a left waste material row and a right waste material row which are enclosed into a frame shape, the upper waste material row is provided with a first wiring pin and a second wiring pin which are switched on/off through the pressing component towards one end of the shell at intervals, the lower waste material row is provided with a third wiring pin and a fourth wiring pin which are electrically connected through the safety resistor towards one end of the shell at intervals, the first wiring pin and the third wiring pin are arranged at the left end of the wiring board, the second wiring pin and the fourth wiring pin are arranged at the right end of the wiring board, the first wiring pin is also provided with a first extending part which extends into a first mounting groove, the third wiring pin is also provided with a second extending part which extends into the first mounting groove, the first extension part and the second extension part are electrically connected through the circuit board.

Description

Button switch of lap joint small-size electrical apparatus

Technical Field

The utility model relates to a button switch technical field, in particular to button switch of small-size electrical apparatus of overlap joint.

Background

The button switch is a switch which utilizes a button to push a transmission mechanism, enables a movable contact and a static contact to be pressed on or off and realizes circuit switching. The button switch is a master control electrical appliance with simple structure and wide application.

At present, current button switch is after the casing shaping introducing in addition the wiring foot and installs with small-size electrical apparatus, and the installation procedure is loaded down with trivial details, and production efficiency is low, can't realize quick installation, and when introducing the wiring foot simultaneously, positioning effect is poor, and the wiring effect is unsatisfactory, has certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a button switch of the small-size electrical apparatus of overlap joint in order to solve foretell problem not enough to prior art exists.

In order to achieve the above purpose, the utility model provides a following technical scheme: a button switch of lap joint small-sized electric appliance comprises a shell, a circuit board, a safety resistor, a pressing component and a base, wherein a connecting piece used for assembling is arranged between the shell and the base, a first mounting groove used for placing the circuit board is arranged on the left part of the upper end surface of the shell, a second mounting groove used for placing the safety resistor is arranged on the lower part of the upper end surface of the shell, the button switch also comprises a wiring board, the shell and the wiring board are integrally formed, the wiring board comprises an upper waste material row, a lower waste material row, a left waste material row and a right waste material row which are enclosed into a frame shape, a first wiring pin and a second wiring pin which are connected/disconnected through the pressing component are arranged at the interval of the upper waste material row towards one end of the shell, a third wiring pin and a fourth wiring pin which are electrically connected through the safety resistor are arranged at the interval of the lower waste material row towards one end of the shell, the first wiring pin and the third wiring pin are arranged at the left end of the wiring board, the right-hand member of wiring board is arranged in to second wiring foot and fourth wiring foot, and first wiring foot still is provided with the first extension that extends to in the first mounting groove, and third wiring foot still is provided with the second extension that extends to in the first mounting groove, and first extension and second extension carry out the electricity through the circuit board and are connected.

The technical scheme has the advantages that: the utility model discloses a but first wiring foot and third wiring foot overlap joint small-size electrical apparatus, and third wiring foot and fourth wiring foot pass through insurance resistance and form the electricity and be connected, when too big electric current appears in the circuit, can make fusing insurance resistance fuse earlier, therefore, this button switch still has the function that can effectively prevent internal circuit, and the small-size electrical apparatus that carries on burns out, application scope is wider, and first wiring foot, second wiring foot, third wiring foot, fourth wiring foot pass through corresponding last waste material row, lower waste material row, left waste material row, right waste material row enclose into frame shape structure, make things convenient for casing and first wiring foot, second wiring foot, third wiring foot, the shaping of fourth wiring foot, casing and first wiring foot in the reduction button switch's assembling process, second wiring foot, third wiring foot, the time of assembling of fourth wiring foot, production efficiency is improved, casing and first wiring foot, second wiring foot, third wiring foot, fourth wiring foot have been strengthened simultaneously, The connection strength of the second wiring pin, the third wiring pin and the fourth wiring pin is higher in electric connection stability.

Preferably, the second connection leg, the first extension portion and the second extension portion are provided with connection reinforcing blocks bent upward.

The technical scheme has the advantages that: the arrangement of the structure can improve the combination degree between the first wiring pin, the second wiring pin, the third wiring pin and the shell, so that the connection strength of the wiring board is high when the wiring board and the shell are integrally formed.

Preferably, the lower end faces of the first wiring pin, the second wiring pin, the third wiring pin and the fourth wiring pin are flush with the lower end face of the shell, a protruding block is further arranged on the first wiring pin and the second wiring pin, and the protruding block extends out of the lower end face of the shell.

The technical scheme has the advantages that: through protruding piece and the switching that presses the subassembly to cooperate and realize whole circuit, simple structure has simplified the installation procedure to a certain extent, has improved production efficiency, makes the user use safer.

Preferably, the upper waste material row and the lower waste material row are also provided with a plurality of positioning holes, and the centers of the positioning holes are in the same axis.

The technical scheme has the advantages that: improve overall structure's stability, intensity when improving casing and base installation simultaneously.

Preferably, a through hole convenient for the circuit board to be detached is arranged on the base corresponding to the first mounting groove.

The technical scheme has the advantages that: the circuit board is disassembled through the through holes, the stability of the whole structure is improved, and the circuit board is convenient to maintain.

Preferably, the connecting piece is including inserting post and slot, and casing, base form through inserting post, slot and assemble the structure.

The technical scheme has the advantages that: make casing and pedestal mounting more firm, improve overall structure's stability, increase the intensity after the casing is accomplished the installation.

Preferably, the circuit board is provided with an indicator light for indicating the working state and a protection circuit.

The technical scheme has the advantages that: the problem that the internal circuit of the shell and the external electrical appliance are burnt due to overlarge current is avoided, the safety in the using process is improved, and the potential safety hazard is reduced.

Preferably, the first terminal pin is integrally formed with the first extension portion, and the third terminal pin is integrally formed with the second extension portion.

The technical scheme has the advantages that: the intensity of first wiring foot and first extension when installing is improved, is difficult to take place to drop to intensity when improving the installation of third wiring foot and second extension improves the stability of the installation between first extension, second extension and the circuit board simultaneously, reduces the emergence of potential safety hazard.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the wiring board of the present invention;

FIG. 3 is a schematic view of the housing structure of the present invention;

FIG. 4 is a schematic view of the base structure of the present invention;

fig. 5 is a schematic diagram of the protection circuit of the present invention.

Reference numerals: 1. a housing; 11. a circuit board; 111. an indicator light; 112. a protection circuit; 12. a safety resistor; 13. a base; 131. a through hole; 14. a first mounting groove; 15. a second mounting groove; 16. a pressing assembly; 2. a connecting member; 21. inserting a column; 22. a slot; 3. a wiring board; 31. feeding waste material and discharging; 311. a first wiring pin; 3111. a first extension portion; 312. a second connection pin; 3121. a raised block; 32. discharging waste material; 321. a third connection pin; 3211. a second extension portion; 322. a fourth connection pin; 33. discharging left waste; 34. discharging right waste; 35. connecting a reinforcing block; 36. and (7) positioning the holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1-5, a button switch for overlapping small-sized electric appliances comprises a housing 1, a circuit board 11, a safety resistor 12, a pressing component 16 and a base 13, wherein a connecting piece 2 for splicing is arranged between the housing 1 and the base 13, a first mounting groove 14 for placing the circuit board 11 is arranged on the left part of the upper end surface of the housing 1, a second mounting groove 15 for placing the safety resistor 12 is arranged on the lower part of the upper end surface of the housing 1, the button switch further comprises a wiring board 3, the housing 1 and the wiring board 3 are integrally formed, the wiring board 3 comprises an upper waste material row 31, a lower waste material row 32, a left waste material row 33 and a right waste material row 34 which are enclosed into a frame shape, a first wiring pin 311 and a second wiring pin 312 which are switched on/off through the pressing component 16 are arranged at an interval at one end of the upper waste material row 31 facing the housing 1, a third wiring pin 321 and a fourth wiring pin 322 which are electrically connected through the safety resistor 12 are arranged at an interval at one end of the lower waste material row 32 facing the housing 1, the first wiring pin 311 and the third wiring pin 321 are disposed at the left end of the wiring board 3, the second wiring pin 312 and the fourth wiring pin 322 are disposed at the right end of the wiring board 3, the first wiring pin 311 is further provided with a first extension portion 3111 extending into the first mounting groove 14, the third wiring pin 321 is further provided with a second extension portion 3211 extending into the first mounting groove 14, and the first extension portion 3111 and the second extension portion 3211 are electrically connected through the wiring board 11.

The utility model is realized by a shell 1, a circuit board 11, a safety resistor 12, a pressing component 16, a base 13 and a wiring board 3, when the shell 1 is formed at high temperature, the wiring board 3, a first wiring pin 311, a second wiring pin 312, a third wiring pin 321 and a fourth wiring pin 322 are put into the shell 1 to be integrally formed with the shell 1, then the first wiring pin 311 and the third wiring pin 321 are connected with an external electrical appliance, and simultaneously the second wiring pin 312 and the fourth wiring pin 322 are connected with an external power supply to provide electric energy for the whole body, the second wiring pin 312 and the second wiring pin 312 are connected with the safety resistor 12, wherein the safety resistor 12 is welded on the corresponding positions of the third wiring pin 321 and the fourth wiring pin 322 in a second mounting groove 15, the welding position of the safety resistor 12 is reasonable, the interference is avoided, the protection is provided for the whole circuit, and then the bottom of the shell 1 is protected by the base 13, improve overall structure's stability, first wiring foot 311, second wiring foot 312, third wiring foot 321, fourth wiring foot 322 and casing 1 injection moulding back again, again with last waste material row 31, waste material row 32, left waste material row 33, right waste material row 34 demolish from wiring board 3, accomplish the installation, the utility model discloses a but first wiring foot 311 and third wiring foot 321 overlap joint small-size electrical apparatus, and third wiring foot 321 forms the electricity through insurance resistance 12 with fourth wiring foot 322 and is connected, when the excessive current appears in the circuit, can make fusing insurance resistance 12 fuse earlier, consequently, this button switch still has the function that can effectively prevent internal circuit and the small-size electrical apparatus that carries out from burning out, and application scope is wider, and first wiring foot 311, second wiring foot 312, third wiring foot 321, fourth wiring foot 322 pass through corresponding last waste material row 31, waste material row 32, left waste material row 33, Frame shape structure is enclosed into to right side row of waste 34, make things convenient for casing 1 and first wiring foot 311, second wiring foot 312, third wiring foot 321, fourth wiring foot 322's shaping, casing 1 and first wiring foot 311 in the assembly process that reduces button switch, second wiring foot 312, third wiring foot 321, fourth wiring foot 322 assemble the time, and the production efficiency is improved, casing 1 and first wiring foot 311 have been strengthened simultaneously, second wiring foot 312, third wiring foot 321, fourth wiring foot 322's joint strength, electric connection stability is higher.

The pressing component 16 comprises a button, a rotor, a copper cap and a spring, the copper cap is composed of a disc and a cylinder, the cylinder is integrally formed on the upper end face of the disc, a groove which downwards penetrates through the disc is arranged in the cylinder, a concave cavity for placing the disc and the spring is arranged on the shell, the upper end of the spring is inserted into the groove and is abutted against the top surface of the groove, the lower end of the spring is abutted against the bottom surface of the concave cavity, the rotor is sleeved on the cylinder of the copper cap, the button is sleeved on the rotor, a convex ring which is abutted against the lower end of the button is arranged on the rotor, the upper end face of the convex ring and the lower end face of the button are provided with meshed connecting teeth, a through hole for the button to penetrate out is correspondingly arranged on the base, a switch disconnection limiting groove and a switch connection limiting groove are arranged on the inner wall of the through hole, the lower ends of the switch disconnection limiting groove and the switch connection limiting groove penetrate through hole, the upper end face of the switch disconnection limiting groove is lower than the upper end face of the switch connection limiting groove, the convex rings of the button and the rotor are correspondingly provided with radial convex ribs which slide into the switch-off limiting groove or the switch-on limiting groove, and the inner ends of the first wiring pin 311 and the second wiring pin 312 extend to the concave cavity and are positioned above the disc.

The second connection leg 312, the first extension portion 3111 and the second extension portion 3211 are provided with a connection reinforcing block 35 which is bent upward. In use, the arrangement of this structure can improve the degree of bonding between the first, second and third terminal pins 311, 312, 321 and the housing 1, so that the connection strength of the terminal block 3 is high when the terminal block is integrally formed with the housing 1.

The lower end surfaces of the first wire connecting pin 311, the second wire connecting pin 312, the third wire connecting pin 321 and the fourth wire connecting pin 322 are flush with the lower end surface of the housing 1, and the first wire connecting pin 311 and the second wire connecting pin 312 are further provided with a protruding block 3121, and the protruding block 3121 extends out of the lower end surface of the housing 1. When the wiring terminal is used, the first wiring pin 311 and the second wiring pin 312 are electrically connected with the pressing component 16, when the pressing component 16 is pressed, the contact of the pressing component 16 is contacted with the protruding block 3121, so that the circuits of the first wiring pin 311 and the second wiring pin 312 are communicated, the whole circuit is communicated, when the pressing component 16 is pressed again, the contact of the pressing component 16 is disconnected with the protruding block 3121, so that the whole circuit is disconnected, the opening and closing of the whole circuit are realized by matching the protruding block 3121 with the pressing component 16, the structure is simple, the installation process is simplified to a certain extent, the production efficiency is improved, and the use of a user is safer.

The upper waste row 31 and the lower waste row 32 are also provided with a plurality of positioning holes 36, and the centers of the positioning holes 36 are on the same axis. When the wiring board 3 and the housing 1 are integrally formed during installation, the wiring board 3 is positioned through the positioning hole 36 during installation, and when the wiring board 3 and the housing 1 are installed, the first wiring pin 311 and the second wiring pin 312 are arranged between the two insertion posts 21 on the upper portion of the bottom of the housing 1, and the third wiring pin 321 and the fourth wiring pin 322 are arranged between the two insertion posts 21 on the lower portion of the bottom of the housing 1, so that the stability of the whole structure is improved.

The base 13 is provided with a through hole 131 corresponding to the first mounting groove 14 for facilitating the detachment of the circuit board 11. When the circuit board 11 is damaged, the circuit board 11 cannot operate, the circuit board 11 is ejected out of the through hole 131 through any ejecting piece, the circuit board 11 is ejected out of the first mounting groove 14, the circuit board 11 is detached and replaced, the circuit board 11 is detached through the through hole 131, the stability of the whole structure is improved, and the circuit board 11 is convenient to maintain.

The connecting piece 2 comprises an inserting column 21 and an inserting groove 22, and the shell 1 and the base 13 form an assembling structure through the inserting column 21 and the inserting groove 22. When casing 1 and base 13 installation, set up in the bottom of casing 1 through inserting post 21, slot 22 sets up in the top of base 13 to cooperate through inserting post 21 and corresponding slot 22, make casing 1 and base 13 installation more firm, improve overall structure's stability, increase the intensity after casing 1 accomplishes the installation.

The circuit board 11 is provided with an indicator lamp 111 for indicating an operating state and a protection circuit 112. When using, when external power source provides the electric energy for overall structure, second wiring foot 312 are connected with insurance resistance 12, when the electric current appears too big in the circuit, can make insurance resistance 12 fusing earlier to come the switching condition of display circuit through pilot lamp 111, avoid burning the problem of the internal circuit of casing 1 and external electrical apparatus because the electric current is too big, improve the security in the use, reduce the emergence of potential safety hazard.

The first terminal pin 311 is integrally formed with the first extension portion 3111, and the third terminal pin 321 is integrally formed with the second extension portion 3211. When the connector is used, the first wiring pin 311 and the first extension portion 3111 are integrally formed, so that the strength of the first wiring pin 311 and the first extension portion 3111 during installation is improved, the first wiring pin is not prone to falling off, the third wiring pin 321 and the second extension portion 3211 are integrally formed, the strength of the third wiring pin 321 and the second extension portion 3211 during installation is improved, meanwhile, the stability of installation among the first extension portion 3111, the second extension portion 3211 and the circuit board 11 is improved, and potential safety hazards are reduced.

Above only the utility model discloses an it is preferred embodiment, the utility model discloses a scope of protection not only limits in above-mentioned embodiment, and the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (8)

1. The utility model provides a button switch of overlap joint small-size electrical apparatus, includes casing (1), circuit board (11), insurance resistance (12), presses subassembly (16) and base (13), be provided with between casing (1) and base (13) and be used for connecting piece (2) of assembling, the left part that leans on of the up end of casing (1) is provided with first mounting groove (14) that supply circuit board (11) to place, the lower part that leans on of the up end of casing (1) is provided with second mounting groove (15) that supply insurance resistance (12) to place, its characterized in that: the novel fuse connector is characterized by further comprising a wiring board (3), the shell (1) and the wiring board (3) are integrally formed, the wiring board (3) comprises an upper waste material row (31), a lower waste material row (32), a left waste material row (33) and a right waste material row (34) which are enclosed into a frame shape, a first wiring pin (311) and a second wiring pin (312) which are connected/disconnected through the pressing component (16) are arranged at one end of the upper waste material row (31) facing the shell (1) at intervals, a third wiring pin (321) and a fourth wiring pin (322) which are electrically connected through the fuse resistor (12) are arranged at one end of the lower waste material row (32) facing the shell (1) at intervals, the first wiring pin (311) and the third wiring pin (321) are arranged at the left end of the wiring board (3), and the second wiring pin (312) and the fourth wiring pin (322) are arranged at the right end of the wiring board (3), the first wiring pin (311) is further provided with a first extending portion (3111) extending into the first mounting groove (14), the third wiring pin (321) is further provided with a second extending portion (3211) extending into the first mounting groove (14), and the first extending portion (3111) and the second extending portion (3211) are electrically connected through the circuit board (11).

2. The button switch of a snap-on small electric appliance according to claim 1, wherein: the second wiring pin (312), the first extending part (3111) and the second extending part (3211) are provided with connecting reinforcing blocks (35) which are bent upwards.

3. The button switch of a snap-on small electric appliance according to claim 1, wherein: the lower terminal surface of first wiring foot (311), second wiring foot (312), third wiring foot (321), fourth wiring foot (322) flushes with the lower terminal surface of casing (1) mutually, just still be provided with protruding piece (3121) on first wiring foot (311), second wiring foot (312), protruding piece (3121) extend to the lower terminal surface of casing (1).

4. The button switch of a snap-on small electric appliance according to claim 1, wherein: the upper waste discharge row (31) and the lower waste discharge row (32) are also provided with a plurality of positioning holes (36), and the centers of the positioning holes (36) are on the same axis.

5. The button switch of a snap-on small electric appliance according to claim 1, wherein: the base (13) is provided with a through hole (131) corresponding to the first mounting groove (14) for facilitating the disassembly of the circuit board (11).

6. The button switch of a snap-on small electric appliance according to claim 1, wherein: connecting piece (2) are including inserting post (21) and slot (22), casing (1), base (13) are passed through insert post (21), slot (22) and form and assemble the structure.

7. The button switch of a snap-on small electric appliance according to claim 1, wherein: and an indicator lamp (111) for indicating the working state and a protection circuit (112) are arranged on the circuit board (11).

8. The button switch of a snap-on small electric appliance according to claim 1, wherein: the first wiring pin (311) and the first extension portion (3111) are integrally formed, and the third wiring pin (321) and the second extension portion (3211) are integrally formed.

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