JPH0416455Y2 - - Google Patents
Info
- Publication number
- JPH0416455Y2 JPH0416455Y2 JP1985173859U JP17385985U JPH0416455Y2 JP H0416455 Y2 JPH0416455 Y2 JP H0416455Y2 JP 1985173859 U JP1985173859 U JP 1985173859U JP 17385985 U JP17385985 U JP 17385985U JP H0416455 Y2 JPH0416455 Y2 JP H0416455Y2
- Authority
- JP
- Japan
- Prior art keywords
- bulb
- led
- mount
- stem
- bimetal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000004020 conductor Substances 0.000 claims description 15
- 230000002265 prevention Effects 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
Description
【考案の詳細な説明】
［産業上の利用分野］
本考案は、光源として発光ダイオード（LED）
を用い、装飾灯、標識灯などとして用いる電球形
のLEDランプに関するものである。[Detailed description of the invention] [Industrial application field] The invention uses a light emitting diode (LED) as a light source.
This relates to bulb-shaped LED lamps that are used as decorative lights, marker lights, etc.
［従来技術］
発光ダイオードは種々の分野の光源として使用
されているが、その一例としては第６図及び第７
図に示すように電球形としたものがある。即ち、
プリント基板Ａの一面に所要数のLED Ｂと直列
接続（あるいは直並列接続）となるように取付
け、その反対面に直列抵抗Ｃを取付けた状態でガ
ラス製ステムＤに固定してLEDマウントとし、
これを反射形のアウトバルブＥ内に挿入して排
気、封止を行い、口金Ｆを取付けた構造となつて
いる。なお、排気時に不活性ガスの封入を行つて
いる。[Prior Art] Light emitting diodes are used as light sources in various fields, and examples of them are shown in Figs. 6 and 7.
There is a bulb-shaped version as shown in the figure. That is,
Mount the required number of LEDs B in series connection (or series-parallel connection) on one side of the printed circuit board A, and fix it to a glass stem D with a series resistor C attached to the other side to form an LED mount.
The structure is such that this is inserted into a reflective out valve E to perform exhaust and sealing, and a cap F is attached. Note that inert gas is filled during exhaust.
しかし、このような構造では、LED Ｂの安定
点灯のために直列抵抗Ｃが結線され、バルブＥ内
に収納されて外部と完全に遮断された状態となつ
ているので、バルブＥ内に発熱量の多い発熱体を
有することになつて内部温度上昇が大きくなり、
LEDの電流、明るさが変化する。また、ランプ
の内部温度は周囲温度によつて左右され、LED
の明るさ、電流、寿命に直接影響する。更に、周
囲温度が80℃以上になると、ランプ内部温度が
100℃以上となり、点灯不能となる。 However, in this structure, a series resistor C is connected in order to stably light LED B, and it is housed inside bulb E and completely isolated from the outside, so there is no heat generated inside bulb E. As the heating element has a large number of heating elements, the internal temperature rise becomes large.
LED current and brightness change. Also, the internal temperature of the lamp is affected by the ambient temperature, and the LED
Directly affects the brightness, current, and lifespan of the Furthermore, if the ambient temperature exceeds 80℃, the internal temperature of the lamp will decrease.
When the temperature exceeds 100℃, it becomes impossible to light up.
［考案の目的］
本考案の目的は、高温下での駆動によるLED
の劣化を防止することができる電球形のLEDラ
ンプを提供することにある。[Purpose of the invention] The purpose of the invention is to create an LED that can be driven at high temperatures.
The purpose of the present invention is to provide a bulb-shaped LED lamp that can prevent deterioration of the lamp.
［考案の概要］
本考案は、プリント基板の一面に所要数の発光
ダイオードを取付け、その反対面に直列抵抗を取
付けた状態でガラス製ステムに固定してLEDマ
ウントとし、これをバルブに挿入して排気、封止
を行い、バルブ端部に電球用口金を取付けた電球
形のLEDランプにおいて、前記ステムに補助導
体を植設して一対の内部導体の一方との間に一定
温度以上で開離するスイツチとしてのバイメタル
を設ける一方、前記プリント基板に発光ダイオー
ドの直列回路と並列になるように逆パルス防止用
ダイオードを取付けたことを特徴とするものであ
る。[Summary of the invention] This invention involves attaching the required number of light emitting diodes to one side of a printed circuit board, attaching a series resistor to the other side, and fixing it to a glass stem to create an LED mount, which is then inserted into a bulb. In a light bulb-shaped LED lamp that is evacuated and sealed, and a light bulb base is attached to the end of the bulb, an auxiliary conductor is planted in the stem, and an auxiliary conductor is installed between the stem and one of the pair of internal conductors to prevent the temperature from opening above a certain temperature. The present invention is characterized in that a bimetal is provided as a switch for releasing the switch, and a reverse pulse prevention diode is attached to the printed circuit board in parallel with the series circuit of light emitting diodes.
［実施例］
第１図〜第４図は本考案の一実施例を示すもの
で、プリント基板１１の一面に所要数のLED１
２を直列接続（あるいは直並列接続）となるよう
に取付け、その反対面に直列抵抗１３と逆パルス
防止用ダイオード１４を取付けてガラス製ステム
１５に固定してLEDマウントとしている。この
場合、ステム１５には一対の内部導体１５Ａ，１
５Ｂの他に補助導体１５Ｃを植設し、これと一方
の内部導体１５Ｂとの間にスイツチとしてのバイ
メタル１６を設けている。このバイメタル１６は
一定温度以上で開離するようその一端部を内部導
体１５Ｂにスポツト溶接し、温度によつて他端部
を補助導体１５Ｃと接触あるいは開離させるよう
にしている。そして、このマウントを反射形アウ
トバルブ１７内に挿入して排気、封止を行い、バ
ルブ１７の端部に電球用口金１８を取付けてい
る。この排気時にバルブ１７内に不活性ガスの封
入を行つている。[Example] Figures 1 to 4 show an example of the present invention, in which a required number of LEDs 1 are arranged on one surface of a printed circuit board 11.
2 are connected in series (or series-parallel connection), and on the opposite side, a series resistor 13 and a reverse pulse prevention diode 14 are attached and fixed to a glass stem 15 to form an LED mount. In this case, the stem 15 has a pair of internal conductors 15A, 1
In addition to 5B, an auxiliary conductor 15C is installed, and a bimetal 16 as a switch is provided between this and one internal conductor 15B. One end of this bimetal 16 is spot welded to the internal conductor 15B so that it separates at a temperature above a certain temperature, and the other end comes into contact with or separates from the auxiliary conductor 15C depending on the temperature. Then, this mount is inserted into the reflective out bulb 17 to perform exhaust and sealing, and a light bulb base 18 is attached to the end of the bulb 17. During this evacuation, an inert gas is sealed in the valve 17.
上記構造のLEDランプは、回路的には第４図
に示すような接続となる。即ち、LED１２の直
列回路に逆パルス防止用ダイオード１４が並列に
接続され、その一端がバイメタル１６などよりな
るスイツチ（一定温度以上で開となり、通常は閉
路している。）を介して（＋）端に、他端が直列
抵抗１３を介して（−）端にそれぞれ接続された
回路構成となつている。 The LED lamp having the above structure has a circuit connection as shown in FIG. 4. That is, a reverse pulse prevention diode 14 is connected in parallel to the series circuit of the LED 12, and one end of the diode 14 is connected to a switch (+) made of a bimetal 16 or the like (opens at a certain temperature or higher, and is normally closed). One end and the other end are connected to the (-) end via a series resistor 13, respectively.
このため、LEDランプを点灯した場合、ある
温度以下ではバイメタル１６が補助導体１５Ｃに
接触した状態となつており、点灯状態が維持され
る。点灯が長期間続くなどして内部温度が一定値
以上に上昇すると、バイメタル１６が湾曲して補
助導体１５Ｃより開離する。即ち、スイツチが開
路した状態となり、LED１２の電圧印加が阻止
され、高温下での駆動による劣化が防止される。 Therefore, when the LED lamp is turned on, the bimetal 16 is in contact with the auxiliary conductor 15C below a certain temperature, and the lighting state is maintained. When the internal temperature rises above a certain value due to continued lighting for a long period of time, the bimetal 16 curves and separates from the auxiliary conductor 15C. That is, the switch is in an open state, and voltage application to the LED 12 is blocked, thereby preventing deterioration due to driving at high temperatures.
なお、上記実施例ではある温度以上になると
LED回路を完全にオフ状態にしたが、第５図に
示すようにバイメタル１６などによるスイツチと
並列になる補助抵抗１９を設け、スイツチ開路状
態ではLED１２の電流を制限するようにしても
よい。 In addition, in the above example, when the temperature exceeds a certain level,
Although the LED circuit is completely turned off, an auxiliary resistor 19 such as a bimetal 16 may be provided in parallel with the switch, as shown in FIG. 5, to limit the current of the LED 12 when the switch is open.
［効果］
以上のように本考案によれば、ステムに補助導
体を植設し、他の内部導体との間にスイツチとし
てのバイメタルを設けて一定温度以上で開路（あ
るいは補助抵抗を挿入）させるようにしたので、
内部温度が上昇した場合に回路が遮断（あるいは
電流制限）状態となり、LEDの劣化が防止され
る。また、LED回路と並列になる逆パルス防止
用ダイオードを設けたので、侵入した逆方向の異
常電圧（パルスなど）よりLEDを保護すること
ができる。[Effects] As described above, according to the present invention, an auxiliary conductor is implanted in the stem, and a bimetal as a switch is provided between it and other internal conductors to open the circuit (or insert an auxiliary resistor) at a certain temperature or higher. I did it like this,
If the internal temperature rises, the circuit will be cut off (or current limited) to prevent LED deterioration. In addition, a reverse pulse prevention diode is installed in parallel with the LED circuit, making it possible to protect the LED from abnormal reverse voltage (pulses, etc.) that enters the LED circuit.
第１図は本考案に係るLEDランプの一実施例
を示す一部破断状態の側面図、第２図は同実施例
におけるLEDマウントの側面図、第３図は同マ
ウントの部分拡大斜視図、第４図は同実施例の回
路図、第５図は本考案の他の実施例を示す回路
図、第６図及び第７図は従来例を示す側面図及び
正面図である。
１１……プリント基板、１２……LED、１３
……直列抵抗、１４……逆パルス防止用ダイオー
ド、１５……ステム、１５ａ〜１５ｃ……導体、
１６……バイメタル、１７……バルブ、１８……
口金、１９……補助抵抗。
Fig. 1 is a partially cutaway side view of an embodiment of the LED lamp according to the present invention, Fig. 2 is a side view of the LED mount in the embodiment, and Fig. 3 is a partially enlarged perspective view of the mount. FIG. 4 is a circuit diagram of the same embodiment, FIG. 5 is a circuit diagram of another embodiment of the present invention, and FIGS. 6 and 7 are a side view and a front view of a conventional example. 11...Printed circuit board, 12...LED, 13
...Series resistance, 14...Reverse pulse prevention diode, 15...Stem, 15a to 15c...Conductor,
16...bimetal, 17...valve, 18...
Base, 19...Auxiliary resistance.
Claims (1)
を取付け、その反対面に直列抵抗を取付けた状態
でガラス製ステムに固定してLEDマウントとし、
これをバルブに挿入して排気、封止を行い、バル
ブ端部に電球用口金を取付けた電球形のLEDラ
ンプにおいて、前記ステムに補助導体を植設して
一対の内部導体の一方との間に一定温度以上で開
離するスイツチとしてのバイメタルを設ける一
方、前記プリント基板に発光ダイオードの直列回
路と並列になるように逆パルス防止用ダイオード
を取付けたことを特徴とするLEDランプ。 Mount the required number of light emitting diodes on one side of a printed circuit board, attach a series resistor to the other side, and fix it to a glass stem to create an LED mount.
This is inserted into a bulb, evacuated and sealed, and in a bulb-shaped LED lamp with a light bulb base attached to the end of the bulb, an auxiliary conductor is planted in the stem and connected to one of the pair of internal conductors. An LED lamp characterized in that a bimetal is provided as a switch that opens at a certain temperature or above, and a reverse pulse prevention diode is attached to the printed circuit board so as to be in parallel with a series circuit of light emitting diodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985173859U JPH0416455Y2 (en) | 1985-11-12 | 1985-11-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985173859U JPH0416455Y2 (en) | 1985-11-12 | 1985-11-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6282753U JPS6282753U (en) | 1987-05-27 |
| JPH0416455Y2 true JPH0416455Y2 (en) | 1992-04-13 |
Family
ID=31111713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985173859U Expired JPH0416455Y2 (en) | 1985-11-12 | 1985-11-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0416455Y2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI421439B (en) * | 2008-03-21 | 2014-01-01 | Liquidleds Lighting Corp | Glass package LED bulb and its manufacturing method |
| BR112012004541A2 (en) * | 2009-09-03 | 2019-09-24 | Koninl Philips Electronics Nv | LED lamp adapted to the mains voltage, lighting fixture and method of operation of a led lamp adapted to the mains voltage. |
| JP5489630B2 (en) * | 2009-10-09 | 2014-05-14 | スタンレー電気株式会社 | Manufacturing method of light emitting diode |
| JP5414718B2 (en) * | 2011-03-09 | 2014-02-12 | スタンレー電気株式会社 | Manufacturing method of light emitting diode |
-
1985
- 1985-11-12 JP JP1985173859U patent/JPH0416455Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6282753U (en) | 1987-05-27 |
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