CN204785683U - A kind of LED bulb lamp - Google Patents

Abstract

The utility model discloses an LED bulb lamp, comprising a lamp holder (2), a heat sink (4) and a lamp shade (6), wherein the lamp holder (2) is located at the top of the heat sink (4), the lamp shade (6) is located at the bottom of the heat sink (4), a circular PCB board (8) is arranged on the bottom wall of the heat sink (4), a plurality of LED chips are arranged on the PCB board (8) at even intervals, and a first conductive column (20) and a second conductive column (22) are arranged through the heat sink (4), and the two ends of the first conductive column (20) and the second conductive column (22) are elastically in contact with positive and negative electrodes respectively. The utility model has the advantages of simple manufacturing and stable performance.

Description

A kind of LED bulb lamp

technical field

The utility model relates to a light bulb, in particular to an LED bulb lamp.

Background technique

At present, as a home lighting fixture used to replace tungsten lamps and fluorescent lamps, LED lamps have the advantages of low energy consumption, high light efficiency, no mercury, no radiation pollution, and renewable materials. Today, it is becoming more and more popular with consumers. As a kind of LED lamp, LED light bulb usually includes a lamp holder, a radiator and a lampshade, wherein a PCB board is arranged on the bottom wall of the radiator, and a plurality of LED chips for emitting light are arranged on the PCB board, usually a PCB board The electrodes on the lamp head are connected to the electrodes on the lamp head through wires, that is, the wires are welded on the PCB board. This method is not only troublesome to make, but also easy to break after a long time of use, resulting in abnormal LED bulbs. Luminescence, therefore, also has defects and problems of unstable performance.

Contents of the invention

The technical problem to be solved by the utility model is to provide an LED bulb lamp with simple manufacture and stable performance.

In order to solve the above-mentioned technical problems, the utility model provides an LED bulb lamp, which includes a lamp cap, a radiator and a lampshade, the lampcap is located on the top of the radiator, the lampshade is located at the bottom of the radiator, and the radiator A circular PCB board is arranged on the bottom wall of the radiator, and a plurality of LED chips are evenly spaced on the PCB board, and a first conductive post and a second conductive post are arranged through the heat sink. The conductive column includes a first conductive column upper section and a first conductive column lower section, a first elastic element is arranged between the first conductive column upper section and the first conductive column lower section, and the second conductive column includes a second conductive column upper section and a second conductive column upper section. The lower section of the second conductive column, a second elastic element is arranged between the upper section of the second conductive column and the lower section of the second conductive column, and the upper section of the first conductive column and the upper section of the second conductive column are respectively elastic to the positive and negative electrodes in the lamp cap contact, the lower section of the first conductive column and the lower section of the second conductive column are respectively in elastic contact with the positive and negative electrodes on the PCB.

The back of the PCB board is connected to the bottom wall of the heat sink through a thermally conductive adhesive layer.

A plurality of fins are evenly spaced on the surface of the heat sink.

The lamp head is detachably connected to the radiator.

The lamp head is threadedly connected with the radiator.

A fluorescent layer is arranged on the outer surface of the lampshade.

Compared with the prior art, the beneficial effect of the utility model is: due to the wireless welding of the mutual connection of the electrodes in the utility model, the production is relatively simple. In addition, the two ends of the first conductive column and the second conductive column are respectively elastically connected to the electrodes. Contact, so as to ensure a stable connection, so that the performance of the utility model is more stable when in use.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: lamp holder 2, radiator 4, lampshade 6, PCB board 8, LED chip 9, first conductive column 20, second conductive column 22, first conductive column upper section 200, first conductive column lower section 202, second conductive column The upper section 220 of the column, the lower section 222 of the second conductive column, the thermally conductive adhesive layer 11 , and the heat sink 12 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Here, the exemplary implementation and description of the utility model are used to explain the utility model, but not as a limitation to the utility model.

Referring to Fig. 1, a LED bulb lamp of the present invention includes a lamp cap 2, a radiator 4 and a lampshade 6, wherein the lampcap 2 is located at the top of the radiator 4, and the lampshade 6 is located at the bottom of the radiator 4, and at the same time, the lampshade is located at the bottom of the radiator 4. A circular PCB board 8 is arranged on the bottom wall of the device 4, and a plurality of LED chips 9 are evenly spaced on the PCB board 8. The special feature of the utility model is that a first Conductive column 20 and second conductive column 22, wherein the first conductive column 20 includes a first conductive column upper section 200 and a first conductive column lower section 202, a first conductive column upper section 200 and a first conductive column lower section 202 are provided with a first The elastic element 3, the second conductive column 22 includes a second conductive column upper section 220 and a second conductive column lower section 222, a second elastic element 5 is arranged between the second conductive column upper section 220 and the second conductive column lower section 222, the first conductive column The upper section of the column 200 and the upper section of the second conductive column 220 are respectively in elastic contact with the positive and negative electrodes in the lamp cap 2, and the lower section of the first conductive column 202 and the lower section of the second conductive column 222 are respectively in elastic contact with the positive and negative electrodes on the PCB board 8, through which The structural design makes the mutual connection of the electrodes wireless welding, so the production is relatively simple. In addition, the two ends of the first conductive column 20 and the second conductive column 22 are in elastic contact with the electrodes respectively, so as to ensure a stable connection and make the utility model in use performance is more stable.

In addition, referring to shown in Fig. 1, in the present utility model, the back side of PCB board 8 is connected with the bottom wall of heat sink 4 through heat-conducting glue layer 11, can guarantee like this to have bigger gap between PCB board 8 and heat sink 4 The heat exchange area ensures that the utility model has better heat dissipation effect. Simultaneously, a plurality of cooling fins 12 are formed at even intervals on the surface of the radiator 4. The existence of the plurality of cooling fins 12 makes the utility model have a larger heat dissipation area, which can also improve the cooling effect of the utility model, thereby Make the utility model have longer service life. In addition, the detachable connection between the lamp cap 2 and the radiator 4, preferably the threaded connection between the lamp cap 2 and the radiator 4, is conducive to the assembly or disassembly of the lamp cap 2 and the radiator 4, thereby facilitating the manufacture and maintenance of the utility model. . Finally, a fluorescent layer (not shown) is provided on the outer surface of the lampshade 6. Due to the existence of the fluorescent layer, after the lamp is turned off, the fluorescent layer still has afterglow, so that it is convenient for the user to perform the next action with the help of the afterglow. To achieve the purpose of user convenience.

Claims (6)

1. An LED bulb lamp, comprising a lamp base (2), a radiator (4) and a lampshade (6), the lamp holder (2) is located on the top of the radiator (4), and the lampshade (6) is located At the bottom of the radiator (4), a circular PCB board (8) is arranged on the bottom wall of the radiator (4), and a plurality of LED chips are evenly spaced on the PCB board (8), It is characterized in that: the radiator (4) is provided with a first conductive column (20) and a second conductive column (22), and the first conductive column (20) includes a first conductive column upper section (200) and a The lower section of the first conductive column (202), the first elastic element (3) is arranged between the upper section of the first conductive column (200) and the lower section of the first conductive column (202), and the second conductive column (22) includes The upper section of the second conductive column (220) and the lower section of the second conductive column (222), the second elastic element (5) is arranged between the upper section of the second conductive column (220) and the lower section of the second conductive column (222), so The upper section of the first conductive column (200) and the upper section of the second conductive column (220) are respectively in elastic contact with the positive and negative electrodes in the lamp cap (2), and the lower section of the first conductive column (202) and the lower section of the second conductive column (222 ) are in elastic contact with the positive and negative electrodes on the PCB (8) respectively. 2. The LED bulb lamp according to claim 1, characterized in that: the back of the PCB board (8) is connected to the bottom wall of the heat sink (4) through a thermally conductive adhesive layer (11). 3. The LED bulb lamp according to claim 1, characterized in that: a plurality of cooling fins (12) are evenly spaced on the surface of the heat sink (4). 4. The LED bulb lamp according to claim 1, characterized in that: the lamp base (2) is detachably connected to the heat sink (4). 5. The LED bulb lamp according to claim 4, characterized in that: the lamp base (2) is connected with the heat sink (4) by threading. 6. The LED bulb lamp according to claim 1, characterized in that a fluorescent layer is arranged on the outer surface of the lampshade (6).