CN218473500U - Pad structure for improving welding condition of large pad - Google Patents

Abstract

The utility model discloses the application relates to light source lighting device field especially relates to a improve pad structure of big pad welding situation, including pad and light source spare, wherein, light source spare welds in the surface of pad, and the surface of pad is provided with the weld part, and wherein, the weld part is provided with the multiunit, and the pad is followed to the multiunit weld part. With a monoblock welding mode fragmentation become a plurality of first welds portion, under the stable prerequisite of maintaining the welding, form a little pad, the interval between the little pad forms the passageway of gas flow to improve the gaseous effective derivation in the welding process.

Description

Pad structure for improving welding condition of large pad

Technical Field

The utility model discloses the application relates to light source lighting device field especially relates to a pad structure of big pad welding situation improves.

Background

At present, a COB light source is a high-power integrated surface light source, and an LED chip is directly attached to a high-light-efficiency integrated surface light source technology on a mirror surface metal substrate with high light reflection rate.

Among them, in the COB light source lighting device, the COB chip needs to be welded on the circuit substrate so as to facilitate the subsequent encapsulation of the lamp module. In the related art, the length and width of the bottom pad may exceed 5mm during the integrated packaging process, and the pad at the bottom of the package is not separable. However, in the actual production process, the gas generated in the soldering process of the solder resist in the connecting agent cannot be effectively led out, and the phenomena of bubbles, holes and the like in the soldering of the light source can be caused.

The problem that gas cannot be effectively led out in the welding process exists in the related technology.

SUMMERY OF THE UTILITY MODEL

In order to ensure that COB chip is gaseous can effectively derive in welding process, this application provides a pad structure who improves big pad welding situation.

A pad structure for improving the welding condition of a large pad comprises a pad and a light source part, wherein the light source part is connected to the pad, and the surface of the pad is provided with a plurality of groups of first welding parts which are uniformly distributed along the center of the pad in the circumferential direction; the multiple groups of first welding parts comprise first welding units which are uniformly distributed in the transverse direction and second welding units which are uniformly distributed in the longitudinal direction. A first ventilation channel is arranged between two groups of transversely adjacent first welding units, and a second ventilation channel is arranged between two groups of longitudinally adjacent second welding units.

Through adopting above-mentioned technical scheme, with a monoblock welding mode fragmentation become a plurality of first weld parts, under the stable prerequisite of maintenance welding, form a little pad, the interval between the little pad forms the passageway of gas flow to improve the gaseous effective derivation in the welding process.

Optionally, the first ventilation channel is transversely arranged, and the second ventilation channel is longitudinally arranged.

Through adopting above-mentioned technical scheme, first ventilation passageway and second ventilation passageway are the right angle and distribute to make at the ventilation in-process, can reduce the resistance of ventilation, maintain good ventilation effect.

Optionally, the plurality of groups of first welding parts are all located within the vertical projection of the light source.

By adopting the technical scheme, on the premise of maintaining good ventilation effect, the length of the ventilation channel is reduced, so that the wind resistance is reduced, and the design cost can be reduced.

Optionally, the surface of pad still is provided with the second weld part, the second weld part is provided with the multiunit, the multiunit the second weld part all is located the edge position of the vertical projection of light source spare, the multiunit the second weld part is followed the center of pad is central symmetry setting, the multiunit the second weld part all support press in light source spare.

Through adopting above-mentioned technical scheme, multiunit second welding part can be used for the location to the light source spare of being convenient for fixes a position, and in addition, when first welding part installation, can install the second welding part by priority, the installation of first welding part is confirmed according to the position of multiunit second welding part, has maintained the precision of pad.

Optionally, be provided with the installation department on the pad, the installation department cave in one side of pad, the installation department is used for supplying pad fixed mounting.

Through adopting above-mentioned technical scheme, the installation department can be used for discerning the mounted position of pad, moreover, after light source spare welds well, can fix whole pad through the bolt, and the nut of bolt can support and press the pad.

Optionally, a first part mounting area, a second part mounting area, a third part mounting area and a fourth part mounting area are further arranged on the pad; the parts in the first part mounting area and the second part mounting area are densely arranged, the parts in the third part mounting area and the fourth part mounting area are sparsely arranged, and the first part mounting area and the third part mounting area are both positioned in the first direction of the bonding pad; the second part mounting area and the fourth part mounting area are both located in the second direction of the bonding pad.

By adopting the technical scheme, the circuit device is required to be installed after the light source part is welded, in order to maintain the sustainable air guide of the light source part in the light emitting process, the first part installation area and the third part installation area are positioned in the first direction, and therefore the air guide effect in the first direction is from the first part installation area to the third part installation area. The second part installation area and the fourth part installation area are located in a second direction, and the air guide effect in the second direction is from the second part installation area to the fourth part installation area. Therefore, the wind direction is stable, and the air guide is convenient.

Optionally, the edge of the pad is smoothly transited.

Through adopting above-mentioned technical scheme, reduce pad fish tail operating personnel's condition in the installation.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a monoblock welding mode fragmentation becomes a plurality of first welds portion, under the stable prerequisite of maintaining the welding, forms a little pad, and the interval between the little pad forms the passageway of gas circulation to improve the gaseous effective derivation in the welding process.

2. The moving direction and the actual air flowing direction of the welding gun in the welding process are considered, so that ventilation channels in multiple directions are arranged, and the ventilation effect of the whole welding disc structure is improved conveniently.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a bonding pad of an embodiment of the present application in actual operation;

FIG. 2 is a schematic view of a back-mounting structure of a light source device according to an embodiment of the present application;

FIG. 3 is a schematic diagram of a pad surface structure according to an embodiment of the present application;

fig. 4 is an enlarged schematic view of a part a of the structure of the embodiment of the present application.

Description of reference numerals: 1. a pad; 11. a first weld; 1111. a first ventilation channel; 1121. a second ventilation channel; 12. a second weld; 13. an installation part; 2. a light source element; 3. a first part mounting area; 4. a second part mounting area; 5. a third component mounting area; 6. a fourth part mounting area.

Detailed Description

The present application is described in further detail below with reference to fig. 1-4.

The application example discloses a bonding pad structure for improving the bonding condition of a large bonding pad,

referring to fig. 1 and 2, a pad structure for improving a large pad soldering condition includes a pad 1 and a light source device 2, wherein the light source device 2 is soldered on a surface of the pad 1, and in order to maintain stable operation of the light source device 2, the pad 1 is further provided with a first component mounting area 3, a second component mounting area 4, a third component mounting area 5, and a fourth component mounting area 6; the first part mounting area 3, the second part mounting area 4, the third part mounting area 5 and the fourth part mounting area 6 are all used for placing different electric appliance parts.

In order to facilitate understanding of the mounting direction of the pad 1, the first component mounting area 3 and the second component mounting area 4 have densely arranged electrical components, and the third component mounting area 5 and the fourth component mounting area 6 have sparsely arranged electrical components.

Referring to fig. 1 and 3, in order to facilitate the air guiding effect of the light source 2 during the welding process, in the present embodiment, the surface of the pad 1 is provided with a plurality of first welding portions 11, where the first welding portions 11 are provided in a plurality of groups, and the plurality of groups of first welding portions 11 are uniformly distributed in the circumferential direction along the center of the pad 1.

Referring to fig. 3 and 4, in the present embodiment, in order to maintain a good air guide effect, a first ventilation channel 1111 is disposed between two groups adjacent in the transverse direction, and a second ventilation channel 1121 is disposed between two groups 112 adjacent in the longitudinal direction.

Referring to fig. 1 and 2, the first part installation area 3, the second part installation area 4, the third part installation area 5, and the fourth part installation area 6 are respectively located at peripheral positions of the first welding portion 11, and the first part installation area 3 and the third part installation area 5 are longitudinally placed, and the second part installation area 4 and the fourth part installation area 6 are transversely placed. Therefore, the direction of air guiding is longitudinally the first part-mounting region 3 to the third part-mounting region 5 and transversely the second part-mounting region 4 to the fourth part-mounting region 6.

Referring to fig. 1 and 3, in order to ensure the welding and fixing of the light source device 2, in this embodiment, the surface of the pad 1 is further provided with four sets of second welding portions 12, wherein the four sets of second welding portions 12 are all located on the oblique symmetry line of the first welding portion 11, and during the installation of the light source device 2, the second welding portions 12 are pressed against the lower bottom surface of the light source device 2.

Referring to fig. 1, in order to ensure the mounting of the pad 1, a mounting portion 13 is opened at one side of the pad 1, and the mounting portion 13 is recessed at one side of the pad 1.

Referring to fig. 1 and 2, in order to improve the mounting safety of the pad 1, the edge of the pad 1 is smoothly transited.

The implementation principle of the embodiment of the application is as follows: with a monoblock welding mode fragmentation into a plurality of first welding parts 11, under the stable prerequisite of maintaining the welding, form a little pad 1, the interval between little pad 1 forms the passageway of gas circulation to improve the effective derivation of welding in-process gas.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (7)

1. A pad structure for improving the welding condition of a large pad is characterized by comprising a pad (1) and a light source part (2), wherein the light source part (2) is connected to the pad (1), first welding parts (11) are arranged on the surface of the pad (1), a plurality of groups of first welding parts (11) are arranged, and the plurality of groups of first welding parts (11) are uniformly distributed along the center of the pad (1) in the circumferential direction; the multiple groups of first welding parts (11) comprise first welding units (111) which are uniformly distributed in the transverse direction and second welding units (112) which are uniformly distributed in the longitudinal direction, a first ventilation channel (1111) is arranged between two groups of transversely adjacent first welding units (111), and a second ventilation channel (1121) is arranged between two groups of longitudinally adjacent second welding units (112).

2. The land structure for improving a large land bonding condition according to claim 1, wherein said first ventilation channel (1111) is provided in a lateral direction and said second ventilation channel (1121) is provided in a longitudinal direction.

3. A bonding pad structure for improving bonding conditions of a large bonding pad according to claim 1, wherein a plurality of sets of the bonding portions (11) are located within a vertical projection of the light source device (2).

4. The pad structure for improving the welding condition of a large pad according to claim 1, wherein the surface of the pad (1) is further provided with second welding portions (12), the second welding portions (12) are provided with a plurality of groups, the plurality of groups of second welding portions (12) are all located at edge positions of the vertical projection of the light source element (2), the plurality of groups of second welding portions (12) are arranged in central symmetry along the center of the pad (1), and the plurality of groups of second welding portions (12) are all pressed against the light source element (2).

5. Pad structure for improving the soldering condition of large pads according to claim 1, wherein the pad (1) is provided with an installation part (13), the installation part (13) is recessed on one side of the pad (1), and the installation part (13) is used for fixedly installing the pad (1).

6. A bonding pad structure for improving the bonding condition of a large bonding pad according to claim 1, wherein the bonding pad (1) is further provided with a first component mounting area (3), a second component mounting area (4), a third component mounting area (5) and a fourth component mounting area (6); the parts in the first part mounting area (3) and the second part mounting area (4) are densely arranged, the parts in the third part mounting area (5) and the fourth part mounting area (6) are sparsely arranged, and the first part mounting area (3) and the third part mounting area (5) are both positioned in the first direction of the pad (1); the second part mounting area (4) and the fourth part mounting area (6) are both located in a second direction of the pad (1).

7. A pad structure for improving the bonding condition of a large pad according to claim 1, wherein the edge of the pad (1) is smoothly transited.

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