Connecting structure of light source module

Abstract

The utility model discloses a connecting structure of a light source module, and belongs to the technical field of LED lamps. The light source module comprises a plurality of light source modules which are arranged side by side at intervals, each light source module comprises a substrate and a plurality of light sources, the connecting structure of the light source module comprises a connecting plate and a connecting support, and the light source modules are provided with first bonding pads on the front face of the substrate. The first bonding pad is communicated with each light source on the light source module, and the connecting plate and the connecting support are symmetrically arranged on one side of the front face and one side of the back face of the light source module respectively and are perpendicular to the light source modules respectively. Second bonding pads are formed on the side face, facing the light source modules, of the connecting plate and correspond to the first bonding pads on the light source modules, and the first bonding pads and the second bonding pads are in contact conduction. The light source module has the advantages that the connecting plate and the light source module are directly connected in a plate-to-plate mode, a connecting wire and a connector are omitted, and main body materials of all components of the light source module can be made of metal so as to meet high flame retardant requirements.

Description

Technical Field

[0001] The utility model belongs to the technical field of LED lamps, and particularly relates to a connection structure of a light source module. Background Art

[0002] The light strips and panels within LED lamps are generally referred to as light source modules, while the array or combination of these modules is generally referred to as a light source module. Electrical connections between light source modules typically use wires. While this method is widely used, it is not suitable in some special cases. For example, when a product has very high flame retardancy requirements, the main material of all components must be metal. In this case, although wires can be used, the connectors (terminal blocks) used with the wires cannot be used. Abandoning the connectors and using soldered wires can certainly solve the problem, but this will make subsequent maintenance very cumbersome.

[0003] In view of the above-mentioned prior art, the applicant has made a useful design, and the technical solution to be introduced below is produced in this context. Utility Model Content

[0004] The purpose of the utility model is to provide a connection structure of a light source module, which has a simple electrical connection structure and is easy to maintain.

[0005] The purpose of the utility model is achieved in this way. A connection structure of a light source module, the light source module includes a plurality of light source modules arranged side by side and spaced apart, the light source module includes a substrate and a plurality of light sources arranged at intervals on the front side of the substrate, the connection structure of the light source module includes a connecting plate and a connecting bracket, the light source module is provided with a first soldering pad on the front side of the substrate, the first soldering pad is conductively connected with each light source on the light source module, the connecting plate and the connecting bracket are symmetrically arranged on the front side and the back side of the light source module, and are respectively arranged perpendicular to each light source module, the connecting plate is formed with a second soldering pad on a side surface facing the light source module and corresponding to the first soldering pad on each light source module, the connecting member passes through the second soldering pad and the first soldering pad in sequence and is fixedly connected to the connecting bracket, so that the first soldering pad is in contact with the second soldering pad and is conductive.

[0006] In a specific embodiment of the present invention, the first soldering pad forms a first screw hole in the middle, the second soldering pad forms a second screw hole in the middle, the connecting bracket opens a third screw hole corresponding to the first screw hole, and the connecting member is a screw, which passes through the first screw hole and the second screw hole in sequence and is screwed into the third screw hole for fixation.

[0007] In another specific embodiment of the present invention, solder paste is preset on the first soldering pad to form a protrusion that contacts the second soldering pad.

[0008] In another specific embodiment of the present invention, the substrate is a single-sided aluminum substrate, and the connecting plate is a double-sided aluminum substrate.

[0009] In another specific embodiment of the present invention, the connecting plate extends laterally at the upper end and / or lower end on the side facing away from the light source module to form a connecting end, and a third soldering pad is formed on the connecting end for welding a power supply wire connected to an external power supply, and the third soldering pad is conductive with each second soldering pad.

[0010] In another specific embodiment of the present invention, the connecting plate is provided with a fourth solder pad on the side facing away from the light source module and corresponding to each second solder pad. The fourth solder pad is connected to the corresponding second solder pad and is used to contact and connect with the solder pad on the external adapter board to connect to the external power supply.

[0011] In a further specific embodiment of the present invention, both ends of the connecting plate correspond to the two outermost light source modules in the light source module, and gaps are formed at both ends of the connecting plate to make room for the light sources.

[0012] In a more specific embodiment of the present invention, a pair of auxiliary connection brackets are further included. The pair of auxiliary connection brackets are located on the back side of the light source module and are arranged parallel to both sides of the connection bracket. The auxiliary connection brackets are connected and fixed to each light source module.

[0013] Due to the use of a connecting plate, the present invention has the following beneficial effects compared with the prior art: the connecting plate and the light source module are directly connected in a board-to-board manner, eliminating the connecting wires and connectors in the conventional connection structure, so that the main material of all components of the light source module can be made of metal to meet very high flame retardant requirements, and subsequent maintenance is convenient. The product is suitable not only for conventional environments, but also for harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the utility model on the front side of the light source module;

[0015] Figure 2 This is a schematic structural diagram of the utility model on the back side of the light source module.

[0016] In the figure: 1. Light source module, 11. Base plate, 12. Light source, 13. First soldering pad, 131. First screw hole; 2. Connecting plate, 21. Second soldering pad, 211. Second screw hole, 22. Connecting end, 221. Third soldering pad, 23. Fourth soldering pad, 24. Notch; 3. Connecting bracket, 31. Third screw hole; 4. Connecting piece; 5. Auxiliary connecting bracket. DETAILED DESCRIPTION

[0017] The specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings. However, the description of the embodiments does not limit the technical solution. Any changes in form rather than substance based on the concept of the present invention should be regarded as within the scope of protection of the present invention.

[0018] In the following description, all concepts related to directionality (or orientation) such as up, down, left, right, front and back are with respect to the position state of the figure being described, and are intended to facilitate public understanding. Therefore, they should not be understood as special limitations on the technical solutions provided by the present invention.

[0019] See also Figure 1 and Figure 2 The present invention relates to a connection structure for a light source module, comprising a light source module, a connecting plate 2, and a connecting bracket 3. The light source module comprises a plurality of light source modules 1 spaced apart side by side. The light source module 1 comprises a substrate 11, which is a single-sided aluminum substrate. A plurality of light sources 12 and first soldering pads 13 electrically connected to each light source 12 are spaced apart on the front of the substrate 11. The connecting plate 2 and the connecting bracket 3 are symmetrically arranged on the front and back sides of the light source module, and are respectively arranged perpendicular to each light source module 1. The connecting plate 2 has second soldering pads 21 formed on a side facing the light source module, corresponding to the first soldering pads 13 on each light source module 1. The second soldering pads 21 are configured to contact and electrically connect with the first soldering pads 13, thereby ensuring electrical continuity between the connecting plate 2 and the circuits on the light source module 1. To ensure reliable contact between the first soldering pads 13 and the second soldering pads 21, solder paste is applied to the first soldering pads 13 when the light source 12 is being mounted on the light source module 1. After being subjected to the high temperature of reflow soldering, the solder paste forms a solder bump on the first soldering pad 13. The first soldering pad 13 has a first screw hole 131 formed in the center, and the second soldering pad 21 has a second screw hole 211 formed in the center. The connecting bracket 3 has a third screw hole 31 corresponding to the first screw hole 131. A connecting member 4, in this case a screw, passes through the second screw hole 211 and the first screw hole 131 in sequence and is screwed into the third screw hole 31 of the connecting bracket 3, thereby fixing the connecting plate 2 to the light source module 1, so that the solder bump of the first soldering pad 13 contacts and is electrically connected to the second soldering pad 21. The two ends of the connecting plate 2 correspond to the two outermost light source modules 1 in the light source module, and the connecting plate 2 has clearance notches 24 formed at both ends to make way for the light source 12.

[0020] The light source module is connected to an external power source via a connecting plate 2. The connecting plate 2 can be connected to an external power source in the following two ways: In this embodiment, the connecting plate 2 is a double-sided aluminum substrate.

[0021] Method 1: The connecting plate 2 extends laterally at the upper end and / or lower end on the side facing away from the light source module to form a connecting end 22, and a third soldering pad 221 is formed on the connecting end 22 for welding a power wire connected to an external power supply, and the third soldering pad 221 is conductive with each second soldering pad 21. Figure 1 Two upper and lower third pads 221 are shown above.

[0022] Method 2: Using the same contact method as the first solder pad 13 and the second solder pad 21. The connecting plate 2 is formed with a fourth solder pad 23 on the side facing away from the light source module and corresponding to each second solder pad 21. The fourth solder pad 23 is conductively connected to the corresponding second solder pad 21 and is used to contact and conduct with the solder pad on the external adapter board to connect to the external power supply.

[0023] Furthermore, the present invention includes a pair of auxiliary connecting brackets 5, located on the back side of the light source module and on either side of the connecting bracket 3. The auxiliary connecting brackets 5 and each light source module 1 have corresponding threaded holes, and each light source module 1 is secured to the auxiliary connecting brackets 5 via screws. The connecting bracket 3 and the auxiliary connecting brackets 5 each have fixing holes for securing the light source module to the lamp body. The connecting bracket 3 and the auxiliary connecting brackets 5 have the same structure.

Claims

1. A connection structure of a light source module, the light source module comprising a plurality of light source modules (1) arranged side by side and spaced apart, the light source module (1) comprising a substrate (11) and a plurality of light sources (12) spaced apart on the front surface of the substrate (11), the connection structure of the light source module being characterized by: The light source module (1) comprises a connecting plate (2) and a connecting bracket (3); the light source module (1) is provided with a first soldering pad (13) on the front side of the substrate (11); the first soldering pad (13) is electrically connected to each light source (12) on the light source module (1); the connecting plate (2) and the connecting bracket (3) are symmetrically arranged on the front side and the back side of the light source module, and are respectively arranged vertically with each light source module (1); the connecting plate (2) is formed with a second soldering pad (21) on a side facing the light source module and corresponding to the first soldering pad (13) on each light source module (1); the connecting member (4) passes through the second soldering pad (21) and the first soldering pad (13) in sequence and is fixedly connected to the connecting bracket (3), so that the first soldering pad (13) and the second soldering pad (21) are in contact and electrically connected.

2. The connection structure of a light source module according to claim 1, characterized in that: The first soldering pad (13) forms a first screw hole (131) in the middle, the second soldering pad (21) forms a second screw hole (211) in the middle, the connecting bracket (3) opens a third screw hole (31) corresponding to the first screw hole (131), and the connecting member (4) is a screw, which passes through the first screw hole (131) and the second screw hole (211) in sequence and is then screwed into the third screw hole (31) for fixing.

3. The connection structure of a light source module according to claim 1, characterized in that: The first soldering pad (13) is pre-set with solder paste to form a protrusion that contacts the second soldering pad (21).

4. The connection structure of a light source module according to claim 1, characterized in that: The substrate (11) is a single-sided aluminum substrate, and the connecting plate (2) is a double-sided aluminum substrate.

5. The connection structure of the light source module according to claim 4, characterized in that: The connecting plate (2) extends laterally at the upper end and / or the lower end on the side facing away from the light source module to form a connecting end (22), and a third soldering pad (221) is formed on the connecting end (22) for soldering a power supply wire connected to an external power supply, and the third soldering pad (221) is conductively connected to each second soldering pad (21).

6. The connection structure of the light source module according to claim 4, characterized in that: The connecting plate (2) is provided with a fourth soldering pad (23) on a side facing away from the light source module and corresponding to each second soldering pad (21); the fourth soldering pad (23) is connected to the corresponding second soldering pad (21) and is used to contact and connect with the soldering pad on the external adapter board to connect to the external power supply.

7. The connection structure of a light source module according to claim 1, characterized in that: The two ends of the connecting plate (2) respectively correspond to the two outermost light source modules (1) in the light source module, and the connecting plate (2) is formed with clearance notches (24) at both ends for making way for the light sources (12).

8. The connection structure of a light source module according to claim 1, characterized in that: It also includes a pair of auxiliary connection brackets (5), which are located on the back side of the light source module and are arranged in parallel on both sides of the connection bracket (3). The auxiliary connection brackets (5) are connected and fixed to each light source module (1).

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