CN216960319U

CN216960319U - Welding structure and LED lighting device

Info

Publication number: CN216960319U
Application number: CN202220387548.6U
Authority: CN
Inventors: 杨清华
Original assignee: Shenzhen Topband Co Ltd
Current assignee: Shenzhen Topband Co Ltd
Priority date: 2022-02-24
Filing date: 2022-02-24
Publication date: 2022-07-12
Anticipated expiration: 2032-02-24

Abstract

The utility model discloses a welding structure and an LED lighting device, and relates to the technical field of LEDs, wherein the welding structure and the LED lighting device comprise a circuit board provided with a welding area, at least one metal plug-in arranged on the welding area, a lamp panel provided with at least one luminous piece, and at least one bonding pad arranged on the lamp panel; the metal plug-in is electrically connected with the circuit board, the lamp panel is provided with at least one connecting jack, and the connecting jack respectively penetrates through the lamp panel and the bonding pad; the metal plug-in can be inserted into the connecting jack to penetrate through the bonding pad and the lamp panel, so that the bonding pad can be welded and connected to any position on the metal plug-in, and the circuit board can be conducted with the light-emitting piece through the metal plug-in and the bonding pad; the lamp panel provided with the luminous piece can be directly sleeved on the metal plug-in piece and slides to any position on the surface of the metal plug-in piece for welding connection; has the advantages of high processing yield, high assembly processing efficiency and low production cost.

Description

Welding structure and LED lighting device

Technical Field

The utility model relates to the technical field of LEDs (light emitting diodes), in particular to a welding structure and an LED lighting device.

Background

Due to the advantages of low energy consumption, high brightness and the like, the application rate of the LED lighting device in each field is continuously improved, and various LED lighting devices with different forms and functions are promoted under various conditions such as different application scenes, differentiated use requirements and the like;

however, even if different types of LED lighting devices are used, the LED circuit board in the LED lighting device and the power circuit board need to be connected during the manufacturing process, so that the current can be further transmitted to the LED circuit board through the power circuit board, and thus, each LED on the LED circuit board is driven to work and emit light.

However, in the process of assembling the LED circuit board and the power circuit board, the LED circuit board and the power circuit board are difficult to be soldered, and the difficulty that is difficult to overcome is embodied as follows:

firstly, the surfaces are difficult to be flatly attached, so that the area of a conductive contact surface is insufficient, and the product is poor in work and even cannot work; secondly, in the welding process after the two are attached, due to the fact that only the surfaces of the two are welded, the problems of insufficient welding and even non-welding are easily caused, and the processing yield of the product is low in both aspects;

in addition, even if the lead is used for connecting the two, the technical problem derived from surface-to-surface bonding welding is solved, but the two ends of a single lead are required to be welded once respectively, and the lead with smaller wire diameter and higher flexibility is difficult to perform the steps of lead picking and placing, end guiding, accurate welding and the like through common automatic production equipment, so that the welding efficiency is very low, and meanwhile, the arrangement of the lead can also improve the production cost;

in conclusion, the technical problems of low processing yield caused by surface-to-surface joint welding between the LED circuit board and the power circuit board and the technical problems of low assembly processing efficiency and high production cost caused by wire welding are difficult to eliminate simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding structure and an LED lighting device, wherein the welding structure and the LED lighting device have the advantages of high processing yield, high assembling and processing efficiency and low production cost.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the application provides a welding structure, which comprises a circuit board provided with a welding area, at least one metal plug-in arranged on the welding area, a lamp panel provided with at least one luminous piece, and at least one bonding pad arranged on the lamp panel;

the metal plug-in is electrically connected with the circuit board, at least one connecting jack is arranged on the lamp panel, and the connecting jack penetrates through the lamp panel and the bonding pad respectively;

the metal plug-in can be inserted into the connecting jack to penetrate through the bonding pad and the lamp panel, so that the bonding pad can be welded and connected to any position on the metal plug-in, and the circuit board can be conducted with the luminous element through the metal plug-in and the bonding pad.

In some embodiments, the at least one metal insert comprises a plurality of the metal inserts, the at least one pad comprises a plurality of the pads, and the at least one connection receptacle comprises a plurality of the connection receptacles;

the connecting holes correspondingly penetrate through the bonding pads one by one, the metal plug-ins are correspondingly inserted into the connecting holes one by one, and the metal plug-ins are correspondingly connected with the bonding pads in a welding mode one by one.

In some embodiments, the soldering structure further includes a fixing base disposed on the soldering region, and each of the metal inserts is disposed through the fixing base and the circuit board;

and the bonding pads are in one-to-one correspondence with the end parts of the metal plug-ins exposed out of the fixed seat in welded connection, or the bonding pads are in one-to-one correspondence with the end parts of the metal plug-ins exposed out of the circuit board in welded connection.

In some embodiments, each of the metal inserts is arranged in sequence along a same straight line; or

The metal inserts are arranged in sequence along at least two straight lines respectively, and the number of the metal inserts on each straight line is the same; or

The metal plug-ins are arranged in sequence along at least two straight lines respectively, and the number of the metal plug-ins on each straight line is different.

In some embodiments, the metal insert is cylindrical, flat, polygonal, or contoured.

In some embodiments, the at least one light emitting element includes a plurality of LED beads, each of the LED beads is disposed on the lamp panel, and each of the LED beads is electrically connected to the bonding pad.

In some embodiments, each of the LED beads is arranged along a straight line.

In some embodiments, the lamp panel includes a flexible circuit board, and the at least one light emitting member is disposed on the flexible circuit board.

On the other hand, the application also provides an LED lighting device, which comprises the welding structure in any one of the above technical schemes.

In some embodiments, the LED lighting device further includes a housing, the solder structure is disposed within the housing, and the circuit board is in communication with an external power source.

The welding structure and the LED lighting device at least have the following beneficial effects:

according to the welding structure and the LED lighting device, the metal plug-in and the bonding pad are arranged, and the connecting jacks which simultaneously penetrate through the lamp panel and the bonding pad are further arranged, so that the lamp panel provided with the light-emitting piece can be directly sleeved on the metal plug-in and can slide to any position on the surface of the metal plug-in for welding connection; therefore, the circuit board and the lamp panel can be welded without being attached, and meanwhile, a welding wire is omitted, so that the production cost is reduced; secondly, in the assembling process, the metal plug-in is inserted into the connecting plug-in hole, so that the relative positions of the circuit board and the lamp panel can be fixed in the horizontal direction, the alignment trouble is avoided, the metal plug-in is directly fed into automatic equipment or is very convenient to weld manually, and the assembling and processing efficiency of products is improved; therefore, the method has the advantages of high processing yield, high assembly processing efficiency and low production cost.

Drawings

The utility model will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic diagram of the structure of an LED lighting device in a preferred embodiment of the present invention;

FIG. 2 is a schematic diagram of the structure of an LED lighting device in another preferred embodiment of the present invention;

fig. 3 is a schematic diagram of a welded structure in some preferred embodiments of the utility model.

Detailed Description

For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

Fig. 1 and 2 show an LED lighting device 1 according to some preferred embodiments of the present invention, wherein the LED lighting device 1 can be connected to an external power source to be electrically operated, so as to emit light; a welding structure may be provided in the LED lighting device 1, and the welding structure is used for welding and assembling and also plays a role in transmitting current. As shown in fig. 1 and 2, the LED lighting device 1 may include a housing and a welding structure 10, wherein the welding structure 10 is disposed on the housing; the housing serves to house and secure the welding structure 10, and the welding structure 10 is used to generate light when energized.

As shown in fig. 1 and 2, the soldering structure 10 may include a circuit board 11 provided with a soldering region 111, at least one metal insert 12 provided with the soldering region, a lamp panel 13 provided with at least one light emitting member 14, and at least one soldering pad 15 provided on the lamp panel 13 in some embodiments.

It is understood that the circuit board 11 may be directly connected to an external power source, or may be connected to the external power source through other components, and may perform the functions of reducing voltage and stabilizing current to generate the current capable of driving the light emitting element 14 to normally operate. Metal plug-in components 12 plays the effect of the electric current that output circuit board 11 produced to pad 15, and pad 15 is used for transmitting electric current to lamp plate 13, transmits electric current to illuminating part 14 by lamp plate 13, and illuminating part 14 sends light after the circular telegram work. The bonding pad 111 is used to connect the metal interposer 12 into a corresponding circuit.

It is also understood that the bonding pad 111 may be provided with a conductive circuit, which may be a conductive wire or an etched circuit, and the direction and overall layout of the circuit may be flexibly adjusted, specifically, the metal plug 12 is inserted into a predetermined position in the circuit so as to drive each light emitting element 14 to operate normally. Second, the number of the luminous members 14 may be set to be plural, and the brightness required to be emitted from the product may be adaptively increased or decreased.

In addition, the number of the metal plugs 12 may be multiple, the number of the pads 15 may also be multiple, and the number of the metal plugs 12 and the number of the pads 15 are preferably set to be equal, so as to ensure one-to-one correspondence, avoid the mismatch and reduce the production cost.

As shown in fig. 1, 2 and 3, the metal plug 12 is electrically connected to the circuit board 11, at least one connection jack 16 is disposed on the lamp panel 13, and the connection jack 16 penetrates through the lamp panel 13 and the pad 15 respectively; the metal plug 12 can be inserted into the connection jack 16 to penetrate the pad 15 and the lamp panel 13, so that the pad 15 can be welded and connected to any position on the metal plug 12, and the circuit board 11 can be conducted with the light emitting element 14 through the metal plug 12 and the pad 15.

It is understood that the metal insert 12 may be soldered to a predetermined position on the circuit board 11 by soldering or other connection means of electronic components commonly used in the art, so that stable current transmission between the two is possible.

It can be understood that the connection jack 16 is used for inserting the metal insert 12, and the aperture of the connection jack 16 may be equal to or slightly larger than the outer diameter of the metal insert 12, so as to ensure that the solder does not directly run off through the connection jack 16 during the soldering process, so that the solder can fill the fit gap between the connection jack 16 and the metal insert 12 as much as possible, and improve the conductive stability; of course, the connecting insertion hole 16 may be configured with various profiles such as a square hole, a kidney hole, etc., and the metal insert 12 may be configured with various shapes such as a square column, a flat cylinder, etc., and the cross sections thereof are preferably configured to be capable of adapting to each other.

In summary, in the present embodiment, when the circuit board 11 and the lamp panel 13 need to be assembled, the metal plug 12 is inserted into the connection jack 16, so as to fix the relative positions of the two in the horizontal direction, more precisely, the positions of the two, which need to be soldered and connected, are fixed in one direction; at this time, the lamp panel 13 can slide along the length extending direction of the metal plug-in 12, and the connection jack 16 is ensured to be sleeved on the metal plug-in 12, and then the connection jack and the metal plug-in 12 are welded and connected, that is, the positions of the connection jack and the metal plug-in 12, which need to be welded and connected respectively, can be fixed and conducted in the vertical direction. So, compare in prior art, this embodiment has compared and has removed the loaded down with trivial details of counterpointing from the mode of carrying out welding after the laminating, has avoided bad welding consequence such as rosin joint, has removed the wire from and has set up and the cost rise problem that brings from.

As shown in fig. 1, 2 and 3, in some embodiments, the at least one metal insert 12 includes a plurality of metal inserts 12, that is, the number of the metal inserts 12 may be set to be plural; the at least one pad 15 includes a plurality of pads 15, that is, the number of pads 15 may be set to be plural; the at least one connection socket 16 comprises a plurality of connection sockets 16, i.e. the number of connection sockets 16 may also be provided in plurality.

When the circuit board 11 and the lamp panel 13 are assembled, the connection jacks 16 penetrate through the bonding pads 15 in a one-to-one correspondence manner, the metal plug-ins 12 are inserted into the connection jacks 16 in a one-to-one correspondence manner, and the metal plug-ins 12 are connected with the bonding pads 15 in a one-to-one correspondence manner in a welding manner.

It will be appreciated that each metal insert 12 and each pad 15 function to carry current. After each connecting jack 16 is correspondingly inserted into each connecting jack 16, welding the metal plug-in 12 and the bonding pad 15 by adopting manual or automatic equipment; in the welding process, although the increase of the metal plug-in 12 on a single product means the increase of the welding workload of a single product, as long as each metal plug-in 12 is positioned in each connecting jack 16 in a one-to-one correspondence manner, the welding can be directly carried out, the complexity of surface-to-surface bonding or wire connection is avoided, and higher efficiency can still be ensured.

It can be understood that, in this embodiment, different circuit portions on the lamp panel 13 through different pads 15 may be energized at different times, so as to implement functions such as lighting a portion of the light emitting element or adjusting brightness.

As shown in fig. 1, 2 and 3, the soldering structure 10 may further include a fixing base 17 disposed on the soldering region 111 in some embodiments, and each metal insert 12 is disposed through the fixing base 17 and the circuit board 11; the bonding pads 15 are connected with the end parts of the metal plugs 12 exposed out of the fixing seat 17 in a one-to-one correspondence mode, or the bonding pads 15 are connected with the end parts of the metal plugs 12 exposed out of the circuit board 11 in a one-to-one correspondence mode.

It will be understood that the fixing base 17 serves to fix each metal insert 12, ensuring that each metal insert 12 can be stably fixed in a predetermined position and each metal insert can be inserted into a corresponding position in a corresponding circuit.

Each metal insert 12 functions as

In some embodiments, as shown in fig. 1 and 2, the metal inserts 12 are arranged in a line. It will be appreciated that the metal inserts 12 are arranged in a row, i.e. the centre of the metal inserts 12 which are connected in series will appear as a straight line. The distance between two adjacent metal inserts 12 may be equal or different.

In other embodiments, as shown in fig. 3, the metal inserts 12 are arranged along at least two straight lines, and the number of the metal inserts 12 in each straight line is the same. It is understood that the metal inserts 12 may be arranged along two or more straight lines, and the number of the metal inserts 12 in any straight line is equal.

For example, the centers of some of the metal plugs 12 are connected in sequence to form a straight line, and the centers of the rest of the metal plugs 12 are connected in sequence to form another straight line; the two straight lines can be intersected or parallel to each other; and the number of corresponding metal inserts 12 on each of the two straight lines is equal. Likewise, the distances between two adjacent metal inserts 12 in the same line may be equal or different.

In other embodiments, as shown in fig. 3, the metal inserts 12 are respectively arranged along at least two straight lines, and the number of the metal inserts 12 on the same straight line is different. It is understood that the metal inserts 12 may be arranged along two or more straight lines, and the number of the metal inserts 12 in any one straight line is not equal.

For example, the centers of some of the metal plugs 12 are connected in sequence to form a straight line, and the centers of the rest of the metal plugs 12 are connected in sequence to form another straight line; the number of the metal inserts 12 corresponding to each of the two straight lines is different;

in other embodiments where the metal inserts 12 are sequentially arranged along at least two straight lines, the number of the metal inserts 12 corresponding to only some of the different straight lines may be the same.

For example, the centers of some metal plugs 12 are connected in sequence to form a first straight line, the centers of other metal plugs 12 are connected in sequence to form a second straight line, and the centers of the rest metal plugs 12 are connected in sequence to form a third straight line; the number of metal inserts 12 corresponding to the first straight line is equal to the number of metal inserts 12 corresponding to the third straight line, and the number of metal inserts 12 corresponding to the second straight line is different.

In summary, the arrangement positions of the metal plugs 12 are very flexible, and the arrangement positions are specifically adjusted by the circuit structures on the lamp panel 13 and the circuit board 11 and the corresponding access positions of the metal plugs 12. The center of each metal insert 12 is not limited to the above embodiment or embodiments, and may be disposed in a radial shape, a scattered point shape, an annular shape, or the like.

As shown in fig. 1 and 2, the metal insert 12 may be cylindrical, flat, polygonal, or contoured in some embodiments.

It is understood that the outer shape of the metal insert 12 may be provided in various shapes such as a cylindrical shape, a flat shape, a polygonal shape, or a special shape, and of course, the structure of the metal insert 12 may also take other shapes, for example, the cylindrical metal insert 12 may be further configured to have a certain curvature. The adjustment is performed according to the application scene, the product specification or the application requirement. Wherein the irregular shape includes various irregular shapes that can pass through the connection insertion hole and be welded.

Understandably, the outer diameter of the long cylindrical metal insert 12 is matched with the aperture of the connecting jack 16, so that molten solder is prevented from directly sliding off along the metal insert 12, the fit clearance between the metal insert 12 and the bonding pad 15 is ensured to be filled with solder components, and the welding yield is improved.

As shown in fig. 1 and fig. 2, in some embodiments, at least one of the light emitting elements 14 includes a plurality of LED beads 141, that is, the number of the light emitting elements 14 may be multiple; each LED lamp bead 141 is disposed on the lamp panel 13, and each LED lamp bead 141 is electrically connected to the pad 15.

It can be understood that the LED lamp beads 141 can be common LED lamp beads in the prior art, which can be powered on and emit light in various shapes, and then the product specifications of the LED lamp beads 141 can be equal or different, so that the product can realize functions such as brightness change and color temperature change. The corresponding LED lamp beads 141 are conducted with the corresponding bonding pads 15, and the corresponding bonding pads 15 are conducted with the corresponding circuits on the circuit board 11 through the corresponding metal plug-in 12, so as to realize respective control of each LED lamp bead 141.

As shown in fig. 1 and 2, in some embodiments, the LED beads 141 are arranged along a straight line, that is, a straight line is formed by sequentially connecting the centers of the LED beads 141. It can be understood that the arrangement positions of the LED lamp beads 141 can be flexibly adjusted, for example, some or all of the LED lamp beads 141 can be arranged in a concentrated manner; part or all of the LED lamp beads 141 can be arranged in a gradual change manner at intervals; part or all of the LED lamp beads 141 can be arranged at equal intervals; all the LED lamp beads 141 can be divided into a plurality of groups, and the LED lamp beads 141 of each group are arranged at respective intervals. Of course, the arrangement position of each LED lamp bead 141 also includes other various arrangement modes.

As shown in fig. 1 and 2, in some embodiments, the lamp panel 13 includes a flexible circuit board, and the at least one light emitting element 14 is disposed on the flexible circuit board. Understandably, the flexible circuit board has the advantages of light weight, good bending performance and high wiring density. Each of the light emitting members 14 is positioned on the flexible circuit board.

according to the welding structure and the LED lighting device, the metal plug-in and the bonding pad are arranged, and the connecting jacks which simultaneously penetrate through the lamp panel and the bonding pad are further arranged, so that the lamp panel provided with the light-emitting piece can be directly sleeved on the metal plug-in and can slide to any position on the surface of the metal plug-in for welding connection; therefore, the circuit board and the lamp panel can be welded without being attached, meanwhile, a welding wire is omitted, and the production cost is reduced; secondly, in the assembling process, the metal plug-in is inserted into the connecting plug-in hole, so that the relative positions of the circuit board and the lamp panel can be fixed in the horizontal direction, the alignment trouble is avoided, the metal plug-in is directly fed into automatic equipment or is very convenient to weld manually, and the assembling and processing efficiency of products is improved; therefore, the method has the advantages of high processing yield, high assembly processing efficiency and low production cost.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims

1. A welding structure is characterized by comprising a circuit board provided with a welding area, at least one metal plug-in arranged on the welding area, a lamp panel provided with at least one luminous piece and at least one bonding pad arranged on the lamp panel;

2. The solder structure of claim 1, wherein said at least one metal interposer includes a plurality of said metal interposers, said at least one solder pad includes a plurality of said solder pads, and said at least one connection receptacle includes a plurality of said connection receptacles;

each connecting plug-in hole correspondingly penetrates through each bonding pad, each metal plug-in unit correspondingly inserts into each connecting plug-in hole, and each metal plug-in unit correspondingly is connected with each bonding pad in a welding mode.

3. The soldering structure according to claim 2, further comprising a fixing base disposed on the soldering region, wherein each metal insert is disposed through the fixing base and the circuit board;

and each welding pad is in one-to-one correspondence with the end part of each metal plug-in unit exposed outside the fixed seat in a welding connection mode, or each welding pad is in one-to-one correspondence with the end part of each metal plug-in unit exposed outside the circuit board in a welding connection mode.

4. A welded structure according to claim 2 or 3, wherein said metallic inserts are arranged in sequence along a common line; or

5. The welded structure according to claim 1, characterized in that said metal insert is cylindrical, polygonal, flat or profiled.

6. The welding structure of claim 1, wherein the at least one light emitting element comprises a plurality of LED beads, each LED bead is disposed on the lamp panel, and each LED bead is electrically connected to the bonding pad.

7. The welding structure of claim 6, wherein each of the LED beads is arranged along a straight line.

8. The soldering structure according to claim 1, wherein the lamp panel includes a flexible circuit board, and the at least one light emitting member is disposed on the flexible circuit board.

9. An LED lighting device, comprising the solder structure according to any one of claims 1 to 8.

10. The LED lighting device of claim 9, further comprising a housing, wherein the solder structure is disposed within the housing, and wherein the circuit board is in communication with an external power source.