CN107195761A - A kind of LED and its production method of heating power separation - Google Patents

Abstract

The invention discloses a thermally separated LED lamp and a production method thereof. The thermally separated LED lamp includes a light-transmitting body, an LED light-emitting module, a bracket, a positive pole of the bracket, a negative pole of the bracket, and a connection medium; the thermally separated LED of the present invention The LED light-emitting module of the lamp is connected to the bracket by baking solder paste or silver glue; the beneficial effects of the present invention are: the LED light-emitting module is connected to the bracket through pure tin or silver glue, and the light-emitting module connected by solder paste is connected to the positive pole of the bracket and the bracket The connection between the negative poles is very firm, and the connection force is more than 4 times higher than that of the traditional process; the increase in the connection force makes the LED lights of this process resistant to contact external forces such as pulling and extrusion in the later machining of the customer. It completely protects the two points of pure tin or silver glue, and solves the problem of poor disconnection between the LED light-emitting module and the bracket connection point during the later machining and welding of the existing integrated LED products on the client side. .

Description

A thermally separated LED lamp and its production method

technical field

The present invention relates to a lighting device, more specifically to a thermally separated LED lamp and a production method thereof.

Background technique

Existing LED lights include an LED chip and the LED chip is integrally connected to the bracket with gold wire and silver glue, and the LED chip is covered with a light-transmitting body. The positive and negative conductive segments of the LED chip extend from the light-transmitting body for customers The terminals are connected in combination and turned on for use.

With the lightness and miniaturization of current consumer products, corresponding miniaturization of LED products is required, and the space reduction of miniaturized LED products leads to the integration of integrated LED products in the later machining and welding of customers. There is a disconnection defect in the connected connection point among the connected LEDs, and this defect cannot be avoided.

Contents of the invention

The present invention overcomes the deficiencies of the prior art, provides a thermally separated LED lamp and its production method, and solves the problem of the connection point between the LED light-emitting module and the bracket during the machining and welding of the existing integrally connected LED products in the later stage of production. There is a problem with poor disconnection.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions:

A thermally separated LED lamp, which includes a light-transmitting body, an LED light-emitting module and a bracket, the LED light-emitting module is located inside the light-transmitting body, one end of the bracket is located inside the light-transmitting body and connected to the LED light-emitting module, and the bracket The other end of the support passes through the light-transmitting body to connect to the power supply; the support includes a separate support positive pole and a support negative pole, and the support positive pole and the support negative pole are connected to a connection medium, and the support positive pole and the support negative pole are connected through the connection medium LED lighting module; the connection medium is made of one of solder paste or silver glue.

A method for producing thermally separated LED lamps. The LED light-emitting module is fixed on the positive pole of the support and the negative pole of the support with a connection medium, and the first baking is performed. After the connection medium is completely cured, it is packaged with a light-transmitting body The light-emitting module is then baked for the second time, and then cooled after baking to form a thermally separated LED lamp.

Preferably, the first baking is completed in a reflow soldering machine, and the second baking is completed in an oven.

Preferably, the first baking temperature is 180-260° C., and the baking time is 4-6 minutes.

Preferably, the second baking is divided into initial baking and long baking; the initial baking is only at 130°C, and the initial baking time is 1.5h. After the initial baking, increase the temperature to 135°C for long baking. Baking time is 6h.

Compared with prior art, the beneficial effect of the present invention is:

In the thermally separated LED lamp produced by the present invention, the LED light-emitting module is connected to the support through pure tin or silver glue, and the light-emitting module connected through solder paste or silver glue is very firmly connected to the positive pole of the support and the negative pole of the support. The connection strength is more than 4 times higher than that of traditional technology. The increase in the connection strength allows the LED of this process to completely protect the two points of pure tin or silver glue under the action of contact external forces such as pulling and extrusion in the later mechanical processing of the client. In addition, because the LED products after machining need to be assembled into other mechanisms, any contact assembly of spare parts will generate interference force with each other. Temperature 270°±5°, duration 10 seconds) will be released. In the traditional process, the interference force of this release will cause the connection point of the integral connection between the bracket and the LED chip to be disconnected, resulting in poor functionality. However, in the thermal separation In the advanced process, the release of this interference force is completely avoided, because pure tin will melt under the conditions of wave soldering and reflow soldering (maximum temperature 270°±5°, duration 10 seconds), so that the LED light-emitting module and The positive pole of the bracket and the negative pole of the bracket are connected in a liquid state. In the liquid state connection, the interference force will not be transmitted to the LED light-emitting module at all. After natural cooling, the pure tin can be solidified and connected to the positive pole of the bracket and the positive pole of the bracket. In the later machining and welding of the existing integrally connected LED products, there is a problem of poor disconnection at the connection point between the LED light-emitting module and the bracket.

Description of drawings

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a schematic diagram of the structure of the present invention.

The numbers in the figure are: 1. light-transmitting body; 2. LED light-emitting module; 3. bracket; 31. positive pole of the bracket; 32. negative pole of the bracket; 4. connection medium.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.

[Example 1]

As shown in Figure 1, a thermally separated LED lamp includes a light-transmitting body 1, an LED light-emitting module 2 and a support 3, the LED light-emitting module 2 is located inside the light-transmitting body 1, and one end of the support 3 is located in the light-transmitting body The inside of the light body 1 is connected to the LED light-emitting module 2, and the other end of the support 3 passes through the light-transmitting body 1 to connect to the power supply; Both the negative poles 32 are connected with a connection medium 4 , and the support positive pole 31 and the support negative pole 32 are both connected to the LED light emitting module 2 through the connection medium 4 .

In this embodiment, the connection medium 4 is made of solder paste. The production method of the thermally separated LED lamp in this embodiment is as follows: the LED light emitting module 2 is fixed on the support positive pole 31 and the support negative pole 32 with solder paste, and the The reflow soldering machine performs the first baking, the baking curve temperature is 180°C-260°C, and the baking time is 4 minutes; after the solder paste or silver glue is completely cured, wrap the light-emitting module 2 with the transparent body 1, and then The second baking is carried out in the oven. The second baking is divided into initial baking and long baking. The initial baking temperature is 130°C, and the baking time is 1.5h. After the initial baking, the temperature is raised to 135°C for long baking. , the long-baking time is 6h, and cooling after baking to form a thermally separated LED lamp.

[Example 2]

As shown in Figure 1, a thermally separated LED lamp includes a light-transmitting body 1, an LED light-emitting module 2 and a support 3, the LED light-emitting module 2 is located inside the light-transmitting body 1, and one end of the support 3 is located in the light-transmitting body The inside of the light body 1 is connected to the LED light-emitting module 2, and the other end of the support 3 passes through the light-transmitting body 1 to connect to the power supply; Both the negative poles 32 are connected with a connection medium 4 , and the support positive pole 31 and the support negative pole 32 are both connected to the LED light emitting module 2 through the connection medium 4 .

In this embodiment, the connection medium 4 is made of silver glue. The production method of the thermally separated LED lamp in this embodiment is as follows: fix the LED light-emitting module 2 on the support positive pole 31 and the support negative pole 32 with solder paste, and Carry out the first baking in the reflow soldering machine, the temperature of the baking curve is 180°C-260°C, and the baking time is 5min; Carry out the second baking. The second baking is divided into initial baking and long baking. The initial baking temperature is 130°C, and the baking time is 1.5h. The baking time is 6 hours, and after baking and forming, it is cooled to obtain a thermally separated LED lamp.

[Example 3]

As shown in Figure 1, a thermally separated LED lamp includes a light-transmitting body 1, an LED light-emitting module 2 and a support 3, the LED light-emitting module 2 is located inside the light-transmitting body 1, and one end of the support 3 is located in the light-transmitting body The inside of the light body 1 is connected to the LED light-emitting module 2, and the other end of the support 3 passes through the light-transmitting body 1 to connect to the power supply; Both the negative poles 32 are connected with a connection medium 4 , and the support positive pole 31 and the support negative pole 32 are both connected to the LED light emitting module 2 through the connection medium 4 .

In this embodiment, the connection medium 4 is made of solder paste. The production method of the thermally separated LED lamp in this embodiment is as follows: fix the LED light-emitting module 2 on the positive pole 31 of the support and the negative pole 32 of the support with solder paste, and reflow The welding machine performs the first baking, the baking curve temperature is 180°C-260°C, and the baking time is 6 minutes; after the solder paste is completely cured, wrap the light-emitting module 2 with the light-transmitting body 1, and then carry out the second baking in the oven. The second baking, the second baking is divided into initial baking and long baking, the initial baking temperature is 130°C, and the baking time is 1.5h. After the initial baking, the temperature is raised to 135°C for long baking and long baking time 6h, after baking and cooling, the thermally separated LED lamp is obtained.

The foregoing is an embodiment of the present invention. The present invention is not limited to the above embodiments, and anyone should know that any structural changes made under the inspiration of the present invention, and any technical solutions that are the same as or similar to the present invention, all fall within the protection scope of the present invention.

Claims (5)

1. A thermally separated LED lamp, which comprises a light-transmitting body (1), an LED light-emitting module (2) and a support (3), the LED light-emitting module (2) is located inside the light-transmitting body (1), and the One end of the bracket (3) is located inside the light-transmitting body (1) and connected to the LED light-emitting module (2), and the other end of the bracket (3) passes through the light-transmitting body (1) to connect to a power supply; it is characterized in that: the bracket (3) comprise separately provided support positive pole (31) and support negative pole (32), all are connected with connection medium (4) on described support positive pole (31), support negative pole (32), described support positive pole (31), The support negative electrodes (32) are all connected to the LED light-emitting module (2) through the connection medium (4); the connection medium (4) is made of one of solder paste or silver glue. 2. A production method of thermally separated LED lamps as claimed in claim 1, characterized in that: it fixes the LED light-emitting module (2) on the support positive pole (31) and the support negative pole (32) with a connecting medium , and perform the first baking. After the connection medium is completely solidified, wrap the light-emitting module (2) with the light-transmitting body (1), and then perform the second baking. After baking and cooling, the thermally separated LED lights. 3. The production method of a thermally separated LED lamp according to claim 2, characterized in that: the first baking is completed in a reflow soldering machine, and the second baking is completed in an oven of. 4. A thermally separated LED lamp according to claim 3, characterized in that: said first baking temperature is 180-260°C, and the baking time is 4-6 minutes. 5. A heat-separated LED lamp according to claim 3, characterized in that: the second baking is divided into initial baking and long baking; the initial baking is only at 130°C, and the initial baking time is 1.5 h, after the initial baking, increase the temperature to 135°C for long baking, and the long baking time is 6 hours.