CN102468543A - Plug and LED (Light Emitting Diode) lamp - Google Patents

Abstract

The invention provides a plug and an LED (Light Emitting Diode) lamp. The plug is respectively connected with a circuit board and a socket, and is characterized by comprising an insulating body and metal bodies, wherein at least two grooves are arranged on the surface of the insulating body and are used for fixing the metal bodies therein, and the insulating body is provided with a connecting structure for integrally connecting the insulating body and the circuit board; and one end of each metal body is bent along one end of each groove downwards and is welded on the circuit board, and the other end of each metal body is bent along the other end of each groove downwards and is electrically connected with the socket. The plug disclosed by the invention is designed compactly and has the advantages of simple structure and production process, and low cost.

Description

Plug and LED light

technical field

The invention relates to a plug and an LED lamp, in particular to a bar-shaped LED lamp that can be conveniently combined into a lamp strip of any length.

Background technique

Due to the advantages of high light efficiency, low energy consumption and long life, LEDs have been widely used in various decorative occasions and advertising industries, such as window displays, showcases, indoor scenery and so on. Because of the special requirements of the decoration industry or decoration occasions, generally speaking, it is hoped that the lamps used are beautiful in appearance, or even small and delicate, and lamps with LEDs as light sources can fully meet such requirements.

Based on the pursuit of the above goals, a new type of product has been developed on the basis of the traditional cord light. The traditional flexible wire lamp is a kind of bendable LED decorative lamp made of SMD LED wrapped in transparent or translucent soft plastic resin, while the newly developed product is in a long strip shell A strip-shaped circuit board is inserted, and the light-emitting element LED is welded on the circuit board, such as the "bending semiconductor light-emitting diode decorative lamp" disclosed in Chinese patent ZL02250827.9, which is provided with lead connectors , the dotted line next to the lead connector can be broken at will, and the power cord is inserted into the lead connector on the broken plate at the break, and the light bar can also work normally.

There is no difference between the above-mentioned lead wire connector structure and the similar structure of traditional cord lamps, and there are also shortcomings in use: first, it is not very convenient to use, and the lamp body should be broken as needed during use, but for those who For ordinary people who understand electrical appliances, it is impossible to complete it by themselves; second, the distance between the lead connectors is generally about 1 meter, and even if the lamp body can be broken, its length is still difficult to meet the requirements of various environmental conditions; 3. At each break, an additional power socket is required to supply power for the power cord, which seriously affects the overall effect of the decorative occasion. Fourth, additional lead wires are required at each plug or socket to connect the relevant components of the plug terminal or socket, which is cumbersome and expensive to manufacture, and because the structure of the entire lamp body at the plug or socket is different, therefore It lacks consistency as a whole and can easily lead to differences in the spacing between LEDs near this location, thereby affecting decoration or lighting effects.

Contents of the invention

The plug and the LED lamp proposed by the invention have the advantages of compact design, simple structure, simple production process and low cost.

According to one aspect of the present invention, a plug is provided, which is respectively connected to a circuit board and a socket, and is characterized in that it includes an insulating body and a metal body, wherein: the surface of the insulating body is provided with at least two grooves and the metal body is fixed in the grooves Among them, the insulating body is provided with a connection structure to connect the insulating body and the circuit board into one; one end of the metal body is bent downward along one end of the groove and welded on the circuit board, and the metal body The other end is bent downward along the other end of the groove and forms an electrical connection with the socket.

Further, the insulating body also includes a hooking structure, which is arranged on the back side corresponding to the surface of the insulating body, and hooks the free end formed by bending the other end of the metal body downward.

Further, the connection structure provided by the insulating body is a positioning pin hole, which is arranged on the back corresponding to the surface of the insulating body. The height of the positioning pin hole is smaller than the height between the surface and the back of the insulating body. Locating pins.

Further, the connection structure provided by the insulating body is a plug-in body.

Further, at least two holes are provided in the groove of the insulating body, and the metal body penetrates into the holes provided in the groove along the surface of the insulating body.

Further, the other end of the metal body is bent downwards to be an elastic contact terminal.

Further, the angle at which the other end of the metal body is bent downward is less than 90 degrees.

Compared with the prior art, the present invention has at least one of the following advantages:

The main body of each lamp is designed with a simplified plug and socket structure, so that according to the length of the use occasion, the LED lamp can be flexibly plugged to meet the use requirements, especially when there are more than two kinds of lamps with the same structure but different lengths. In the case of the model LED lamp, the length requirements of the application can be very accurately met through the plug-in combination.

It is easy to disassemble and assemble, and can be completed by ordinary people without other tools.

The LED lamps are connected into a light strip through a plug, and the entire mated light strip only needs one power input socket, which is beneficial to ensure the tidiness of the decoration occasion and additionally reduces the cost of related power input accessories.

The very simplified plug and socket design of the LED light makes the appearance of the entire LED light completely unaffected by the structure of the plugs and sockets at both ends, and can be made very beautiful and compact.

The plug does not need additional wiring, etc., nor additional accessories, and has the advantages of simple structure, simple production process and low cost.

The space occupied by the plug and the socket is very small, so the continuity of the decorative effect is good, and the overall effect of the lamp will not be affected.

Description of drawings

Fig. 1 is the three-dimensional assembly exploded view of LED lamp of the present invention;

Fig. 2 is a partial enlarged view of the plug of the present invention;

Fig. 3 is a structural diagram of the LED lamp of the present invention after assembly;

Fig. 4 is the sectional schematic view along A-A direction after the present invention is assembled;

Detailed ways

FIG. 1 is an exploded three-dimensional assembly view of a preferred embodiment of the LED lamp of the present invention. The strip-shaped LED lamp includes a strip-shaped shell 1, a circuit board 2 inserted into the shell, a light-emitting LED is welded on the circuit board, a socket 3 is formed at one end of the circuit board, and a plug 4 is tightly connected to the other end of the circuit board. Fixed connection. FIG. 1 shows a schematic diagram of a fastened connection between a circuit board 2 and a plug 4 through a positioning pin 5 , and a positioning pin hole 21 is provided on the circuit board 2 . Of course, the circuit board 2 and the plug 4 can also be fastened in other ways, and the specific implementation will be described in detail below.

The socket 3 is formed by one end of the circuit board 2. On the circuit board 2, there are at least two parallel electrically connected metal foils printed by the printed circuit board manufacturing process. The metal foils are electrically connected to the plug. If the LED lamp To emit colored light, connect the red R, green G, blue B and the power cord respectively.

The plug 4 can protrude from one end of the housing 1 to form an electrical connection with the circuit board and the socket respectively, and the formed electrical connection is a direct plug-in connection without other connection devices. That is, one end of the plug is electrically connected to the circuit board, and the other end of the plug is directly inserted into the socket of another LED lamp to form an electrical connection with the socket of another LED lamp. In FIG. 1 , the part marked with the positioning pin hole 21 on the circuit board 2 is used for connecting the plug 4 . The structure of the plug 4 will be described below in conjunction with the partially enlarged view of the plug 4 in FIG. 2 . The plug 4 includes an insulating body 41 and a metal body 42. The surface of the insulating body 41 is provided with at least two grooves and the metal body 42 is fixed in the grooves. The insulating body 41 is provided with a connection structure, and the insulating body 41 is connected to the circuit. Plates 2 are connected in one piece. One end of the metal body 42 is bent down along one end of the groove and welded on the other end of the circuit board 2, and the other end of the metal body 42 is bent down along the other end of the groove and connected to the socket 3 to form an electrical connection. Preferably, the insulating body 41 of the plug 4 further includes a hooking structure, which is arranged on the back corresponding to the surface of the insulating body 41 , and hooks the free end formed by bending the other end of the metal body 42 downward. This not only reduces the resistance during the plugging process, but also prevents the metal body from scratching the metal foil of the socket. Preferably, as shown in Figure 2, at least two holes are also provided in the groove of the insulating body 41 of the plug 4, and the metal body 42 penetrates the holes provided in the groove along the surface of the insulating body 41 to form a more secure connect. In an implementation without holes, the metal body 42 can be clamped in the groove for fixing, for example, the metal body can be clamped by the side wall of the groove. Preferably, the other end of the metal body 42 of the plug 4 is bent downward along the other end of the groove to form an elastic contact terminal. This creates a tighter connection when mated. Of course, it may not be an elastic contact terminal. For example, when the other end of the metal body 42 is bent down along the other end of the groove, continue to bend along the outer contour of the insulating body, that is, along the side of the insulating body Up to the back, as long as the back of the insulating body can make the metal body and the socket form an electrical connection. Preferably, the angle at which the other end of the metal body 42 of the plug 4 is bent downward is less than 90 degrees. The advantage of this is that when the plug is inserted into the socket and is subjected to external downward pressure, a certain reaction force can be formed to prevent the two LED lights from being disconnected at the connection, ensuring the tightness and safety of the connection sex.

The plug 4 is firmly connected with the other end of the circuit board 2 in the following manner, and can be positioned as a whole by the positioning pin 5, or can be connected by a plug-in structure. That is, the connection structure provided by the insulating body 41 of the plug 4 is a positioning pin hole or a plug-in body. When connected by the positioning pin 5, the insulating body 41 of the plug 4 also includes a positioning pin hole, which is arranged on the back corresponding to the surface of the insulating body, and the height of the positioning pin hole is less than the height between the surface and the back of the insulating body. After the pin 5 penetrates into the positioning pin hole 21 of the circuit board 2, it continues to penetrate into the positioning pin hole of the insulating body 41, and is stuck in the positioning pin hole. Since the positioning pin does not penetrate the insulating body, not only the appearance is ensured, but also the positioning pin 5 can be fastened in the positioning pin hole. When connected by a socket body, the insulating body 41 of the plug 4 can be plugged into the circuit board 2 . For example, a protruding structure is provided on one side of the insulating body 41 facing the circuit board 2, and a concave structure corresponding to the protruding structure is provided on the circuit board 2, and the protruding structure is inserted into the concave structure to realize fastening. connect. Since the protruding structure can be integrally formed with the insulating body, it not only ensures a fast connection, but also makes the process implementation relatively simple. Of course, the above-mentioned protruding structure and concave structure can also be arranged transposed, that is, the concave structure is provided on the insulating body 41 , and the protruding structure is provided on the circuit board 2 . Certainly, those skilled in the art should understand that any corresponding deformation and modification based on the above structures shall be covered by the protection scope of the present claims. Those skilled in the art should also understand that the plug of the present invention can also be applied to other lamp connections or other electrical connections besides LED lamps.

Each LED lamp is designed with a simplified plug and socket structure, wherein the socket is formed by one end of the circuit board, no additional design is required, and the plug is a separate component, which can be flexibly plugged into the LED lamp according to the length of the application. To meet the use requirements, especially when equipped with two or more types of LED lamps with the same structure but different lengths, the length requirements of the use occasion can be very accurately met through the plug-in combination. The entire mated light strip only needs one power input socket, which is beneficial to ensure the tidiness of the decoration occasion and additionally reduces the cost of related power input accessories.

Fig. 3 is a structural diagram of the LED lamp of the present invention after assembly, and Fig. 4 is a schematic cross-sectional view of the present invention along the direction A-A after assembly. As can be seen from FIG. 4 , a part of the plug 4 is inside the housing 1 , and a part protrudes from the end of the housing 1 , and the protruding part is used to be inserted into the socket 3 to establish an electrical connection relationship between two LED lights. Wherein, the length of the end of the plug 4 protruding from the shell 1 can be less than or equal to the length of the socket 3 formed by the LED lamp, that is, the part of the plug 4 protruding from the shell 1 of the LED lamp is completely inserted into the socket 3 of another LED lamp. The two LED lamps form a direct plug-in connection, which not only can replace the plugs of different lengths and specifications to achieve the purpose of fine-tuning the connection length, but also has a good continuity of the decorative effect and will not affect the overall effect of the lamp. The very simplified plug and socket design of the LED light makes the appearance of the entire LED light completely unaffected by the structure of the plugs and sockets at both ends. Not only the pins are shorter and more beautiful, but also the LED lights are evenly arranged and the circuit connection is safer. Of course, the length of the end of the plug 4 protruding from the housing 1 may also be greater than the length of the socket 3 formed by the LED lamp, and the part of the plug 4 exposed outside the housing 1 is an insulating body 41 . For example, an insulator is directly connected to the exposed part, or an insulating part is directly formed on the plug 4 . The advantage of this is that when the length needs to be fine-tuned, the length formed by the two connected LED lamps can be adjusted as long as the plugs of different lengths are replaced.

Frequent plugging and unplugging may cause the plug to fail. When a fault occurs, only the plug can be replaced without replacing the entire LED light, which is not only convenient for replacement, but also saves costs. The plug of the present invention is not equipped with connecting wires and does not need additional accessories, and the plug will not be unusable due to damage to the connecting wires, making the plug safer during use and increasing the service life. The damage of the connecting wire mentioned above is, for example, the connecting wire is broken or the welding is not firm. The plug has a compact design and has the advantages of simple structure, simple production process and low cost. It is easy to disassemble and assemble, and can be completed by ordinary people without other tools.

The casing disclosed in another preferred embodiment of the present invention may be a plastic frame, or a metal frame, or a part of a plastic frame and a part of a metal frame, and the heat dissipation effect is better when a metal frame is used. Preferably, the inner sides of the two side walls of the casing 1 are respectively provided with a first slot and a second slot, and the circuit board 2 is inserted into the first slot and the second slot, and the first slot and the second slot They may not communicate with each other, that is, a gap is formed between the first slot and the second slot. Of course, the first slot and the second slot may also be connected to form a whole. The width formed by the first slot and the second slot is greater than or equal to the width of the circuit board 2 , and the formed width is narrower at the upper part and wider at the lower part. Wherein, the direction of soldering the LED on the circuit board 2 faces upwards, insert the circuit board, set the first slot and the second slot to be narrower at the top and wider at the bottom, closer to the LEDs soldered on the circuit board It is the upper part, so that after the circuit board is inserted into the wide part, the narrow part of the upper part can play a role of clamping, so that the stability of the circuit board can be guaranteed even under severe vibration. Preferably, the inner sides of the two side walls of the casing are also provided with a third slot and a fourth slot for inserting the lens, and the third slot and the fourth slot are located above the first slot and the second slot , that is, the lens is inserted above the circuit board to amplify the light source, and the length of the lens can be the same as the length of the circuit board. For the case where a lens is installed, the casing is not integral, and one part may be a metal casing and the other part may be a plastic casing.

According to the length of the LED lamp to be decorated in the use occasion, the LED lamp of the present invention can be mated and combined with a suitable number and length specifications, so that regardless of the length to be decorated and whether a corner is required, it is very convenient to use only a simple plug-in The matching method can be completed. The connected LED lamp is not only beautiful, but also has no problem of exposure of live parts no matter which socket falls off during use, so it is very safe.

Claims (10)

1. plug, an end form with circuit board and are electrically connected, and the other end is inserted in the socket, are electrically connected with socket formation, comprise insulating body and metallic object, it is characterized in that:

The surface of said insulating body is provided with at least two grooves and metallic object is fixed in the groove, and said insulating body is provided with syndeton, and said insulating body and circuit board are linked into an integrated entity;

One end of said metallic object bends downwards and is welded on the circuit board along an end of groove, and the other end of said metallic object forms along the other end bending downwards of groove and with socket and is electrically connected.

2. according to the said plug of claim 1, it is characterized in that: insulating body also comprises and colludes hanging hang structure, is arranged on the surperficial corresponding back side with insulating body, colludes the free end that the other end that tangles metallic object is bent to form downwards.

3. according to the said plug of claim 1; It is characterized in that: the syndeton of insulating body setting is a dowel hole; Be arranged on the surperficial corresponding back side with insulating body, the height of dowel hole locks the alignment pin that penetrates circuit board less than the surface of insulating body and the height between the back side.

4. according to the said plug of claim 1, it is characterized in that: the syndeton of insulating body setting is the grafting body.

5. according to the said plug of claim 1, it is characterized in that: at least two holes also are set in the groove of insulating body, and metallic object penetrates the hole that is provided with in the groove along the surface of insulating body.

6. according to the said plug of claim 1, it is characterized in that: the bending downwards of the other end of metallic object is the Elastic Contact terminal.

7. according to the said plug of claim 1, it is characterized in that: the angle of the other end of metallic object bending downwards is less than 90 degree.

8.LED lamp, comprise in the enclosure circuit board of shell, plug-in mounting, on circuit board, be welded with emitting led, form socket at an end of circuit board, it is characterized in that: also comprise arbitrary said plug in the claim 1 to 7.

9. said according to Claim 8 LED lamp; It is characterized in that: the inboard of two sidewalls of shell is provided with first slot and second slot respectively; The width that first slot and second slot form is more than or equal to the width of circuit board, and the width that forms is that the top narrow lower portion is wide.

10. said according to Claim 8 LED lamp is characterized in that: the inboard of two sidewalls of shell also is provided with the 3rd slot and the 4th slot that inserts lens, and said the 3rd slot and the 4th slot are positioned at the top of first slot and second slot.

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