TWM552563U - Electrode connection structure for LED light tube - Google Patents

Description

LED tube electrode connection structure

The present invention relates to an LED lamp tube electrode connection structure, and more particularly to a lamp tube structure which is easy to assemble and ensures an electrode cap and a lamp tube which are fitted to the two ends of the lamp tube and can be reliably electrically connected to the internal main circuit board.

With the maturity of LED related application technologies, various types of LED products using LEDs as light sources are also popular in the market; in the new case of the Republic of China Patent Bulletin No. M503516 "LED Strip Light Structure with Lens Cover", it is revealed A lamp product structure that has been disclosed and can be applied to a conventional field, and mainly includes: a flip chip board, a plurality of LED chips, and a lens cover; and a plurality of metal conductors on each side of the flip chip board, each LED chip Electrically connected to any two adjacent metal conductors, the lens cover is disposed on the flip-chip circuit board and shields each LED chip, and a plurality of continuous protruding structures are distributed on the inner surface of the lens cover. The outer peripheral side of the crystal circuit board is covered with a transparent tubular lamp cover, and one end cover is respectively coupled to the two ends of the lamp cover, and the two end covers are respectively directly connected to the external power source, or the conductive contacts are respectively disposed on the end covers, and then The conductive contacts are connected to an external power source to provide the power required to illuminate each LED chip.

However, in the above structure, the connection between the end cap (or conductive contact) and the flip chip board is soldered to the end cap (or conductive contact) and the flip chip board in a more common manner. Between the two types of processing, since the flip-chip circuit board extends into the tubular lampshade, and the two end caps are attached to the two ends of the tubular lampshade, The processing technology of the LED light bar has been continuously improved, and the diameter of the lamp cover has been miniaturized to less than 2 mm, so that it is extremely time consuming to weld the wire between the two ends of the circuit board and the end cover in the small diameter pipe. Things are not conducive to the improvement of production efficiency.

In addition, the length of the lamp cover is shortened, so that the two ends of the flip chip can protrude from the edge of the lamp cover, and a conductive portion protrudes from a portion of the flip chip that protrudes from the edge of the lamp cover. The end cover covers the two ends of the lamp cover to simultaneously contact the conductive portions of the two ends of the flip chip board to form a conduction; however, during the implementation process, the processing precision of each component (the flip chip board, the lamp cover, and the end cover) is deviated. And the loss of assembly may cause the two end caps to fail to be in stable contact with the flip chip board, and even after the correct assembly is completed, the lamp product is highly susceptible to external force during use, resulting in The situation in which the two end caps are loosened from the flip chip board causes a serious lack of application.

In view of the above shortcomings in the application of the LED tube structure, the creator has researched and improved the shortcomings of these shortcomings, and finally this creation has taken place.

The main purpose of the present invention is to provide an LED lamp electrode connection structure, which is provided with a plurality of LEDs on an elongated main circuit board, and each LED is connected via a plurality of electrical conductors, and at least one end of the main circuit board An electrode end is formed by an electric conductor, and a light-transmissive lamp tube is sleeved on the outer peripheral side of the light bar, and at least one end of the lamp tube is sleeved and fixed with a conductive electrode cap, and the electrode cap is Between the inner and the two electrode ends, the two conductive elastic sheets are respectively elastically contacted, and the whole assembly is extremely simple, and the elastic pressure contact connection is maintained between the electrode cap and the electrode end. Achieve the effect of loosening, so as to effectively improve the assembly quality.

Another object of the present invention is to provide an LED lamp tube electrode connection structure, which utilizes the elastic conductive element to have a telescopic characteristic, can effectively adapt to the processing tolerance between the components, and reduce the precision requirement of each product component, thereby greatly Save the production cost of the overall product to enhance the market competitiveness of the product.

In order to achieve the above purpose and effect, the technical means adopted by the present invention comprises: a light bar consisting of a long strip main circuit board and a plurality of LEDs, and a plurality of electric conductors are arranged on at least one side of the main circuit board And at least one end of the main circuit board is provided with two electrode ends electrically connected to the different electrical conductors, and the plurality of LEDs are respectively electrically connected to any two adjacent electrical conductors; a light-transmissive lamp tube, The sleeve is sleeved on the outer peripheral side of the light strip, and the conductive electrode cap is fixed on at least one end of the light tube; the two elastic conductive elements are respectively elastically pressed into contact with the inside of the at least one electrode cap and the second electric Between extremes.

According to the above structure, the elastic conductive element has a specific force-retracting elastic direction, and one end of the elastic-elastic direction is in contact with the inner side of the electrode cap, and the other end of the elastic-elastic direction is in contact with the electric extreme.

According to the above structure, the elastic conductive element is a sheet-like body which is repeatedly bent between the two electrical contact ends.

According to the above structure, the elastic conductive element is a spring-like electric conductor which is spirally bent between the two electrical contact ends.

According to the above structure, the inner peripheral side surface of the tube is coated with at least one layer of the phosphor.

According to the above structure, wherein the inner peripheral side surface of the tube is coated with a plurality of layers having different colors Fluorescent agent.

In order to achieve a more specific understanding of the above objectives, effects and features of this creation, the following figures are illustrated as follows:

1‧‧‧Light strips

11‧‧‧ main board

12‧‧‧LED

13, 14‧‧‧ electrode end

2‧‧‧Light tube

21, 22‧‧‧ electrode cap

3, 4‧‧‧Elastic conductive elements

31, 32, 41, 42‧‧‧ electrical contact

Fig. 1 is an exploded structural view of the first embodiment of the present creation.

Fig. 2 is a schematic view showing the overall combined structure of the first embodiment of the present creation.

Figure 3 is a cross-sectional view showing the overall combination of the first embodiment of the present creation.

Figure 4 is a cross-sectional view of the overall combination of the second embodiment of the present creation.

Referring to Figures 1 to 3, it can be seen that the structure of the first embodiment of the present invention includes: a light bar 1, a lamp tube 2, and an elastic conductive element 3, wherein the light bar 1 is composed of a long main circuit. The board 11 and the plurality of LEDs 12 are formed, and a plurality of electrical conductors (not shown) are disposed on at least one front side of the main circuit board 11 to electrically connect the LEDs 12, and at least one end of the main circuit board 11 (may be set The same end or sub-division is set at the two ends. The drawing of the present specification is described by taking the two ends as an example.) Two electrode terminals 13 and 14 respectively electrically connected to the different electric conductors are provided, and the plurality of LEDs 12 are respectively electrically connected. Connected between any two adjacent electrical conductors.

The lamp tube 2 is a light-transmissive tubular body that is open at least at one end, and is sleeved on the outer peripheral side of the light bar 1. At least one end of the lamp tube 2 is sleeved and fixed with a conductive electrode cap. 21, 22.

The at least one elastic conductive element 3 has two electrical contact ends 31, 32 disposed between the electrode caps 21, 22 and the corresponding two electrode ends 13, 14, the elastic conductive element 3 There is a force acting between the two ends to cause elastic expansion and contraction, and one of the electrical contact ends 31 elastically stretched and elastically contacts the inner side of the electrode caps 21, 22, and the force is elastically stretched. The other electrical contact end 32 is in contact with the two electrode ends 13 and 14, so that the inner portions of the electrode caps 21 and 22 and the two electrode ends 13 and 14 can be elastically pressed between the two elastic conductive members 3 respectively. In the contact state, the electrode caps 21, 22 and the two electrode ends 13, 14 are allowed to pass through the two elastic conductive elements 3; indirectly, the elastic contact connection conduction state which is not easy to loosen is maintained, so as to stably connect the external power source.

In this embodiment, the elastic conductive element 3 can be a sheet-like body that is repeatedly bent between the two electrical contact ends 31, 32; and when assembled, the light bar 1 can be first extended into the In the tube 2, the two elastic conductive elements 3 are respectively placed between the electrode caps 21, 22 and the two electrode ends 13, 14, and the electrode caps 21, 22 are fitted to the tube 2 The second elastic conductive element 3 is directly in contact with the inner side of the electrode caps 21, 22 with an electrical contact end 31, and the other electrical contact end 32 directly contacts the two electrode ends 13, 14 and is elastically compressed. Thereby, the manufacturing tolerance of the main circuit board 11, the lamp tube 2 or the electrode caps 21, 22 themselves can be effectively adapted, so that the main circuit board 11 and the electrode caps 21, 22 can be normally maintained. Stable and good electrical continuity.

In a possible embodiment, the inner peripheral side surface of the bulb 2 may be coated with a layer of phosphor (or a plurality of phosphors having different colors) as needed to form a relatively uniform diffusion of light.

Referring to FIG. 4, it can be seen that the structure of the second embodiment of the present invention includes: at least one elastic conductive element 4, and the same light bar 1, the light tube 2 and the like as the first embodiment, wherein the light bar 1 is combined with the lamp tube 2 in the same manner, and the elastic conductive element The member 4 is a spring-like conductor that is spirally bent between the two electrical contact ends 41, 42. The two elastic conductive members 4 (conductive springs) are in direct contact with the electrode cap 21 with one of the electrical contact ends 41. The inner side of the 22, the other electrical contact end 42 directly contacts the two electrode ends 13, 14 and forms an elastically compressed state; thereby, the same effect as the first embodiment described above can be achieved.

In summary, the LED lamp tube electrode connection structure of the present invention can achieve low cost and easy assembly, and can ensure the close contact between the electrode cap fitted to at least one end of the lamp tube and the main circuit board inside the lamp tube. For a novelty and progressive creation, 申请 apply for a new type of patent according to law; however, the contents of the above description are only for the description of the preferred embodiment of the creation, and the changes and modifications extended by the technical means and scope of the creation are Any change, or equivalent replacement, shall fall within the scope of the patent application of this creation.

1‧‧‧Light strips

11‧‧‧ main board

12‧‧‧LED

13, 14‧‧‧ electrode end

2‧‧‧Light tube

21, 22‧‧‧ electrode cap

3‧‧‧Elastic conductive elements

31, 32‧‧‧Electrical contact

Claims (9)

An LED lamp tube electrode connection structure comprises at least: a light bar consisting of an elongated main circuit board and a plurality of LEDs, wherein a plurality of electrical conductors are disposed on at least one side of the main circuit board, and the main circuit is At least one end of the board is provided with two electrode ends respectively electrically connected to the different electrical conductors, and the plurality of LEDs are respectively electrically connected between any two adjacent electrical conductors; a light-transmissive lamp tube is sleeved in the An electrically conductive electrode cap is sleeved on the outer peripheral side of the light bar at least one end of the lamp tube; at least one elastic conductive element is elastically pressed against the inner portion of the at least one electrode cap and the at least one electric Between extremes. The LED lamp tube electrode connection structure according to claim 1, wherein the elastic conductive element has a force elastic expansion and contraction, and an electrical contact end of the elastically elastically stretched end contacts the inner side of the electrode cap, and The other electrical contact end of the force elastic expansion and contraction is in contact with the electrode end of the light bar. The LED tube electrode connection structure according to claim 2, wherein the elastic conductive element is a sheet-like body that is repeatedly bent between the two electrical contact ends thereof. The LED lamp electrode connection structure according to claim 2, wherein the elastic conductive element is a spring-like electric conductor which is spirally bent between the two electrical contact ends thereof. The LED lamp tube electrode connection structure according to claim 1 or 2 or 3 or 4, wherein the electrode terminals of the main circuit board are respectively disposed at two ends of the main circuit board, and the two light transmissive lamps are respectively The end is provided with an opening, and the electrode cap is respectively sleeved and fixed, and between the electrode caps and the two extreme ends, the elastic conductive element is elastically pressed. The LED tube electrode connection structure according to claim 1 or 2 or 3 or 4, wherein the inner peripheral side surface of the tube is coated with at least one layer of a fluorescent agent. The LED tube electrode connection structure according to claim 5, wherein the inner circumferential side surface of the tube is coated with at least one layer of a fluorescent agent. The LED tube electrode connection structure according to claim 6, wherein the inner peripheral side surface of the tube is coated with a plurality of layers of phosphors having different colors. The LED tube electrode connection structure according to claim 7, wherein the inner peripheral side surface of the tube is coated with a plurality of layers of phosphors having different colors.