WO2021062930A1

WO2021062930A1 - Lamp power supply

Info

Publication number: WO2021062930A1
Application number: PCT/CN2019/119745
Authority: WO
Inventors: 刘天明; 周正为; 辛倜
Original assignee: 中山市木林森光电有限公司
Priority date: 2019-09-30
Filing date: 2019-11-20
Publication date: 2021-04-08
Also published as: DE202019106958U1; CN211184362U

Abstract

The present invention relates to the technical field of driving power supplies, and specifically relates to a lamp power supply, comprising an outer housing provided with an opening, a main circuit board, and an end cover. The main circuit board is accommodated in the outer housing, the end cover covers the opening of the outer housing, and the end cover is provided with a through hole. The lamp power supply further comprises a branch circuit board connected to the main circuit board. The lamp power supply further comprises a rubber plug, the rubber plug comprising a pressing part, an elastic support part that elastically supports the pressing part, and a conductive part connected to the end of the pressing part near to the branch circuit board. The end of the pressing part away from the branch circuit extends out from the through hole, and the support part and the conductive part are accommodated in the through hole. A first space is provided between the branch circuit board and the conductive part, and the pressing part, under the action of pressure, pushes the conductive part to move in the first space and causes the conductive part to be electrically connected to the branch circuit board.

Description

Lamp power supply

Technical field

The invention relates to the technical field of driving power supplies, in particular to a lamp power supply.

Background technique

Conventional lamp power switches usually use the PCB board to insert the mechanical switch, and the silicone button on the shell is used to press the mechanical switch to control the power switch of the lamp. However, in the existing structure, the mechanical switch is inserted into the PCB board through the pins. Among the holes, the holes on the PCB board are usually set larger than the pins, which will cause the pins to be easily installed on the PCB board at an angle when the mechanical switch is plugged into the PCB board, resulting in defective products.

Summary of the invention

The purpose of the present invention is to provide a lamp power supply for the deficiencies in the prior art, and the lamp power supply can reduce the defect rate during product production.

The purpose of the present invention is achieved through the following technical solutions:

A lamp power supply includes a housing with an opening, a main circuit board and an end cover, the main circuit board is accommodated in the housing, the end cover is arranged at the opening of the housing, and the end cover is provided with a through hole, The lamp power supply further includes a branch circuit board electrically connected to the main circuit board; the lamp power supply further includes a rubber plug, the rubber plug including a pressing part, a support part that elastically supports the pressing part, and a support part close to the pressing part A conductive part connected to one end of the circuit board, an end of the pressing part away from the circuit board extends out of the through hole, the support part and the conductive part are accommodated in the through hole, the circuit board There is a first space between the conductive portion and the pressing portion, and the pressing portion pushes the conductive portion to move in the first space under pressure to electrically connect the conductive portion and the circuit board.

Preferably, the conductive part is coated on one end of the pressing part close to the branch circuit board.

Preferably, the supporting portion is connected to the housing in a sealed manner.

Preferably, the supporting portion includes an elastic connecting portion connected with the pressing portion and a lower clamping block connected with the elastic connecting portion, and the lower clamping block is clamped and fixed to the end cover and the circuit board. between.

Preferably, the end cover includes a first boss extending toward the branch circuit, the through hole penetrates the first boss, and the lower clamping block is clamped and fixed to the branch circuit board and the Between the first bosses and in a sealed connection with the first bosses.

Preferably, the end cover further includes a second boss formed to extend toward the branch circuit, the second boss and the first boss are spaced apart and jointly enclose a groove;

The supporting portion further includes a connecting block extending from the lower clamping block in a direction away from the branch circuit board;

The connecting block is received and fixed in the groove.

Preferably, an end of the first boss close to the branch circuit board is provided with an inclined surface; the elastic connecting portion extends obliquely from the pressing portion to the lower clamping block, and is adapted to the inclined surface.

Preferably, the rubber plug further includes an upper clamping block sleeved on an end of the pressing portion protruding from the through hole, and the diameter of the upper clamping block is larger than the aperture of the through hole.

Preferably, the supporting portion further includes an upper clamping block connected to the elastic connecting portion, and the upper clamping block is sleeved on an end of the pressing portion away from the circuit board, and abuts against the end cover. Connect; the diameter of the upper block is greater than the aperture of the through hole.

Preferably, the elastic connecting part is arranged around the pressing part and is spaced from the pressing part to form a second space, and one end of the pressing part close to the circuit board and the conductive part are accommodated in the In the second space, the first space communicates with the second space.

Preferably, the rubber stopper is made of black or white transparent or fluorescent material.

Preferably, a mounting hole is opened on the main circuit board, and one end of the sub-circuit board is inserted into the mounting hole and fixedly connected to the main circuit board.

The beneficial effects of the present invention: In a lamp power supply of the present invention, the circuit board is electrically connected to the conductive portion of the pressing portion, and the conductive portion of the rubber plug is in surface contact with the circuit board, which increases the fault tolerance of the overall structure , The fixing performance between the two is good and will not be easily separated, which can reduce the defect rate of the product; the installation of a sub-circuit board to replace the traditional mechanical switch can reduce the material cost; the upper end of the pressing part protrudes upwards from the surface of the end cover , Which is convenient for manual operation and pressing.

Description of the drawings

The present invention will be further explained with the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present invention. For those of ordinary skill in the art, without creative work, other can be obtained according to the following drawings. Attached.

Fig. 1 is a schematic diagram of the structure of a driving power supply for a lamp of the present invention.

Fig. 2 is a perspective view of the connection between the circuit board and the end cover of a driving power supply for lamps according to the present invention.

Fig. 3 is a schematic diagram of the structure of one side of the end cover of a driving power supply for lamps of the present invention.

Fig. 4 is a cross-sectional view of a driving power source for a lamp of the present invention.

Fig. 5 is a cross-sectional view of a second embodiment of a driving power source for a lamp according to the present invention.

Fig. 6 is an exploded view of a second embodiment of a driving power supply for a lamp according to the present invention.

Fig. 7 is a cross-sectional view of a third embodiment of a driving power source for a lamp according to the present invention.

Detailed ways

The application will be further described in detail below in conjunction with the drawings and embodiments. It is particularly pointed out that the following examples are only used to illustrate the application, but do not limit the scope of the application. Similarly, the following embodiments are only part of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

Please refer to Figures 1 to 4 together. In the first embodiment of the present invention, the lamp power supply includes a housing with an opening 1, a main circuit board received in the

housing

1, 2 received in the housing 1 and connected to the main circuit board 2 The sub-circuit board 35 that is electrically connected, the end cover 3 that covers the opening of the housing 1, the conductive seat 5 mounted on the main circuit board 2, and the conductive seat 5 is electrically connected to the conductive seat 5 and extends from the end of the housing 1 away from the end cover 3. The conductive pin 6 and the rubber plug 31 installed on the end cover 3, the end of the conductive pin 6 protruding from the housing 1 is used for electrical connection with the socket. The top of the end cover 3 is provided with a terminal 4, the outer side wall of the terminal 4 is provided with an external thread for threaded connection with the lamp, the terminal 4 is provided with a receiving groove 40, and the receiving groove 40 is provided with a boss 41. Terminals 42 are provided on the stand 41, and two sets of conductive seats 5 are provided on the main circuit board 2 near the end of the housing 1. The two sets of conductive seats 5 are electrically connected through the main circuit board, the terminals 42 and the conductive pins 6 respectively make electrical contact with the two groups of conductive seats 5, so that the connection terminals 42 and the conductive pins 6 are electrically connected together.

The main circuit board 2 is provided with a mounting hole 20, and one end of the sub-circuit board 35 is provided with a bump 38, which is inserted into the mounting hole 20 to fasten the sub-circuit board 35 to the main circuit board 2, and the main circuit board 2 and The sub-circuit boards 35 are perpendicular to each other, and the sub-circuit boards 35 face the end cover 3. At the same time, the sub-circuit board 35 and the main circuit board 2 are also fixed by soldering, so that the main circuit board 2 and the sub-circuit board 35 are electrically connected, and the stability of the connection between the two is strengthened.

The sub-circuit board 35 is arranged adjacent to the end cover 3, the end cover 3 is provided with a through hole 30, and the rubber plug 31 is installed in the through hole 30 and is movably electrically connected to the sub-circuit board 35. In addition, the rubber plug 31 is also The liquid can be prevented from penetrating into the housing 1 through the through hole 30, so that the lamp power supply has a waterproof function. It can be understood that the rubber plug 31 is a button with both waterproof, dustproof and switch functions. Optionally, the rubber plug 31 is made of black or white transparent or fluorescent material, so that the user can find the lamp power source through the fluorescence of the rubber plug 31 in a dark environment. In addition, a timing indicator light 9 is connected to the sub-circuit board 35. When a delay of 4S, the timing indicator light 9 can be turned on or off, so that the user can leave the room with enough time after turning off the power of the lamp.

Specifically, as shown in FIG. 4, the inner surface of the end cover 3 is formed with a first boss 7 extending in the direction of the branch circuit board 35. The through hole 30 penetrates the first boss 7 and communicates with the inner and outer surfaces of the end cover 3. The column 4 and the first boss 7 are respectively arranged at both ends of the end cover 3.

The rubber plug 31 includes a pressing portion 33, a supporting portion 32 for elastically supporting the pressing portion 33, and a conductive portion 36 connected to an end of the pressing portion 33 close to the circuit board 35. One end of the pressing portion 33 away from the branch circuit board 35 extends out of the through hole 30. The support portion 32 is roughly hollow column shape. The support portion 32 is arranged around the pressing portion 33. The support portion 32 and the conductive portion 36 are accommodated in the through hole 30. There is a first space 37 between the circuit board 35 and the conductive portion 36, namely The circuit board 35 and the conductive portion 36 are spaced apart. Optionally, the conductive portion 36 is a conductive material, such as metallic copper, which is coated in the pressing portion 3 near one end of the circuit board 35.

The supporting portion 32 includes an elastic connecting portion and an upper block 320 and a lower block 321 respectively provided at both ends of the elastic connecting portion. The upper block 320 abuts on the upper surface of the end cover 3, that is, the diameter of the upper block 320 is larger than The aperture of the through hole 30; the elastic connecting portion is arranged around the pressing portion 33 and spaced apart from the pressing portion 33 to form a second space 34, and the first space 37 is in communication with the second space 34. The lower block 321 is formed by protruding outward from the edge of the elastic connecting portion. When the rubber plug 31 is inserted into the through hole 30, the upper block 320 abuts on the outer surface of the end cover 3, and the elastic connecting portion is in interference fit with the through hole 30, so that the housing 1 and the end cover 3 are formed by The space is completely sealed. The lower clamping block 321 is sandwiched between the end of the first boss 7 and the sub-circuit board 35. The conductive portion 36 is located directly above the conductive contact of the sub-circuit board 35. The pressing portion 33 pushes the conductive portion 36 under external pressure. Move in the first space 37 and make the conductive portion 36 and the circuit board 35 electrically connect, and then the circuit board 35 is turned on. At this time, the power of the lamp is turned on or other functions are switched.

In addition, the top of the upper block 320 has a guiding portion 322, which is an inclined surface or an arc surface. When the rubber plug 31 is installed in the through hole 30, the rubber plug 31 is removed from the inner surface of the end cover. When the outer surface is inserted into the through hole 30, the guiding portion 322 of the rubber plug 31 first passes through the through hole 30. Since the guiding portion 322 is arranged as an arc surface or an inclined surface, the guiding effect of the rubber plug 31 and the through hole 30 can be improved , So that the rubber plug 31 can pass through the through hole 30 more conveniently.

In this embodiment, the electrical connection between the sub-circuit board 35 and the pressing portion 33 of the rubber plug 31 can reduce the material cost, and the rubber plug 31 triggers conduction through the surface-to-surface contact between the conductive portion 36 and the sub-circuit board 35 , Which increases the fault tolerance of the overall structure, and the fixing performance between the two is good, the conductive part 36 and the sub-circuit board 35 will not be easily separated, and there will be no oblique insertion of the traditional mechanical switch on the circuit board. The situation that caused the switch to be defective. The switch structure composed of the end cover 3 of the lamp power supply, the rubber plug 31 and the sub-circuit board 35 reduces the defect rate of the product and saves costs; the sub-circuit board 35 is connected to the bottom of the support portion 32 and the lower end of the pressing portion 33 is located at the second In the second space 34, the movable range of the pressing part 33 can only be in the second space 34. When the pressing part 33 is pressed to one side, the pressing part 33 will still have a downward pressing force to make the pressing part 33 conductive. The part 36 is electrically connected to the branch circuit board 35, and can also be connected, and the connection is flexible.

5 to 6, in the second embodiment of the lamp power supply, the end cover 3 and the rubber plug 31 have a structure different from that of the first embodiment. The other structures of the lamp power supply are the same as those of the first embodiment, so only The structure of the end cover 3 and the rubber plug 31 and the connection between the end cover 3 and the rubber plug 31 and the circuit board 35 will be described.

In this embodiment, an annular second boss 39 protrudes from the opposite surface of the end cover 3 and the branch circuit board 35. The second boss 39 coincides with the central axis of the through hole 30, and the second boss 39 is located at the first On the outer side of the boss 7, the second boss 39 and the first boss 7 are spaced apart to form an annular groove 8 together.

The supporting portion 32 of the rubber plug 31 further includes a connecting block 324 extending from the lower clamping block 321 in a direction away from the circuit board 35. When the rubber plug 31 is inserted into the through hole 30, the connecting block 324 is inserted into the groove 8, and the first boss 7 is inserted between the elastic connecting portion 323 and the connecting block 324, so that the first boss 7 serves as a first waterproof The ring and the connecting block 324 serve as the second waterproof ring, and the second boss 39 is clamped with the connecting block 324 of the rubber plug 31, and the rubber plug 31 can be used as the third waterproof ring. It can be seen that the above-mentioned lamp power supply is provided with the first boss 7, the connecting block 324 and the second boss 39, so that there are three waterproof rings when the rubber plug 31 and the end cover 3 are fixedly connected, and the waterproof effect is good.

Further, an end of the first boss 7 close to the branch circuit board 35 is provided with a slope; the elastic connecting portion 323 extends obliquely from the pressing portion 33 to the lower block 321 and is adapted to the slope of the first boss 7. Compared with the vertically arranged elastic connecting portion in the first embodiment, the inclined elastic connecting portion 323 can provide better elastic deformation, so that the movement of the pressing portion 33 can be better controlled, and after the pressing force is removed, it can make The pressing part 33 quickly returns to its original position, with good resilience. In addition, the slope of the elastic connecting portion 323 is adapted to the slope of the first boss 7, which can further improve the waterproof effect.

Referring to FIG. 7, in the third embodiment of the lamp power supply, the rubber plug 31 has a structure different from that of the second embodiment. The other structures of the lamp power supply are the same as the second embodiment, so only the structure of the rubber plug 31 is performed. Description.

In this embodiment, the rubber plug 31 further includes an upper clamping block 320 sleeved on one end of the pressing portion 33 protruding from the through hole 30. The diameter of the upper clamping block 320 is larger than the aperture of the through hole 30 to cover the through hole 30. Optionally, the clamping block 320 has a curved and thin-walled shape. On the whole, the upper clamping block 320 is in the shape of an inverted bowl, and the upper clamping block 320 covers the through hole 30 inside and is close to the outer surface of the end cover 3 Contact, isolate the through hole 30 from the outside, thereby achieving the effect of waterproof and dustproof.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand The technical solution of the present invention can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the present invention.

Claims

A lamp power supply includes a housing with an opening, a main circuit board and an end cover, the main circuit board is accommodated in the housing, the end cover is arranged at the opening of the housing, and the end cover is provided with a through hole, It is characterized in that: the lamp power supply further includes a branch circuit board electrically connected to the main circuit board; the lamp power supply further includes a rubber plug, the rubber plug including a pressing portion, a support portion that elastically supports the pressing portion, and A conductive part connected to an end of the pressing part close to the branch circuit board, an end of the pressing part away from the branch circuit board extends out of the through hole, the support part and the conductive part are received in the through hole, so There is a first space between the sub-circuit board and the conductive portion, and the pressing portion pushes the conductive portion to move in the first space under pressure and makes the conductive portion and the sub-circuit board electrically Sexual connection.
The lamp power supply according to claim 1, wherein the conductive part is coated on an end of the pressing part close to the branch circuit board.
The lamp power supply according to claim 1, wherein the supporting portion is in a sealed connection with the housing.
The lamp power supply according to claim 3, wherein the supporting part comprises an elastic connecting part connected with the pressing part and a lower clamping block connected with the elastic connecting part, and the lower clamping block clamp It is fixed between the end cover and the branch circuit board.
The lamp power supply according to claim 4, wherein the end cover includes a first boss extending toward the branch circuit, the through hole penetrates the first boss, and the lower card The block is clamped and fixed between the branch circuit board and the first boss, and is connected to the first boss in a sealed manner.
The lamp power supply according to claim 5, wherein the end cover further comprises a second boss extending toward the branch circuit, and the second boss is spaced apart from the first boss , And jointly enclose a groove; the supporting portion further includes a connecting block extending from the lower clamping block in a direction away from the branch circuit board; the connecting block is accommodated and fixed in the groove.
The lamp power supply according to claim 6, characterized in that: an end of the first boss close to the branch circuit board is provided with a slope; the elastic connecting portion extends from the pressing portion to the lower clamping block It extends obliquely and fits the inclined surface.
A lamp power supply according to any one of claims 4-7, wherein the rubber plug further comprises an upper clamping block sleeved on one end of the pressing part protruding from the through hole, so The diameter of the clamp block is larger than the hole diameter of the through hole.
The lamp power supply according to any one of claims 4-5, wherein the supporting part further comprises an upper clamping block connected with the elastic connecting part, and the upper clamping block is sleeved on One end of the pressing portion away from the circuit board and abutting against the end cover; the diameter of the upper clamping block is larger than the aperture of the through hole.
The lamp power supply according to any one of claims 4-7, wherein the elastic connecting portion is arranged around the pressing portion and is spaced from the pressing portion to form a second space, and the pressing portion An end close to the circuit board and the conductive part are accommodated in the second space, and the first space is connected to the second space.
The lamp power supply according to claim 1, wherein the rubber plug is made of black or white transparent or fluorescent material.
The lamp power supply according to claim 1, wherein the main circuit board is provided with a mounting hole, and one end of the branch circuit board is inserted into the mounting hole and is fixedly connected to the main circuit board.