CN107420787B - Lamp unit with base - Google Patents
Lamp unit with base Download PDFInfo
- Publication number
- CN107420787B CN107420787B CN201710179179.5A CN201710179179A CN107420787B CN 107420787 B CN107420787 B CN 107420787B CN 201710179179 A CN201710179179 A CN 201710179179A CN 107420787 B CN107420787 B CN 107420787B
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- CN
- China
- Prior art keywords
- power supply
- base
- supply line
- lamps
- rod
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
- F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
- F21V31/005—Sealing arrangements therefor
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Resistance Heating (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides a lamp unit with a base, wherein sealing parts of a plurality of bar-shaped lamps are embedded with a plurality of sealing part insertion holes arranged on a common base to arrange the bar-shaped lamps side by side, power supply wires for the bar-shaped lamps are inserted from the power supply wire insertion holes vertical to the sealing part insertion holes, and external leads protruding from the sealing parts are connected with the power supply wires in welding holes formed through the base, even if tensile force acts on the power supply wires, the tensile force does not directly act on the external leads, and the shear stress acting on the sealing parts is avoided. The power supply wire is provided with a plate-shaped power supply terminal, the power supply terminal is engaged with the welding hole at a position rotated from the inserted position in the welding hole to prevent the power supply terminal from being pulled out, and an external lead of the rod-shaped lamp is welded and jointed with the power supply terminal.
Description
Technical Field
The present invention relates to a lamp unit with a base including a plurality of rod-shaped lamps, and more particularly, to a lamp unit with a base including a power supply line and an outer lead of a lamp welded together in the base.
Background
Conventionally, in an incandescent lamp used as a heating light source for fixing toner in a copying machine, a laser beam printer, or the like, a lamp in which inner leads at both ends of a filament and outer leads led out of a light emitting tube are connected to each other by a metal foil in a sealing portion at both ends thereof and clamped is generally used, and the sealing portion by the clamping is held by a base.
Further, in order to improve the output, a lamp unit including a plurality of lamps is used, and as is apparent from japanese patent application laid-open No. 2014-099259 (patent document 1), a structure in which the plurality of lamps are mounted on a common base is known.
Fig. 9 shows the entire configuration thereof, and fig. 10 shows a partially enlarged configuration thereof.
In fig. 9, the lamp unit with a base includes two rod- like lamps 20 and 20.
As shown in fig. 10, in the rod lamp 20, sealing portions 22 are formed at both ends of an elongated light-emitting tube 21, and a filament, not shown, is disposed inside the light-emitting tube 21 so as to coincide with the tube axis.
Further, a metal foil 23 is embedded in the sealing portion 22 at both ends of the light-emitting tube 21, and an external lead 24 welded to the metal foil 23 is protruded to the outside.
As shown in detail in fig. 9, the two lamps 20, 20 are held by a common base 30. Seal portion insertion holes 31, 31 that accommodate seal portions 22, 22 of the lamps 20, 20 are formed in the base 30, and the seal portion 22 is inserted into the seal portion insertion hole 31, so that the lamp 20 is positioned and held. On the other hand, the base 30 is provided with a power supply line insertion hole 32 perpendicular to the sealing portion insertion hole 31, and two power supply lines 40 and 40 are inserted.
Welding holes 33, 33 are formed through the base 30 so as to be perpendicular to the sealing portion insertion holes 31, and as shown in fig. 10, the external lead 24 protruding from the sealing portion 22 of each lamp 20 inside the welding hole 33 is welded to the connection terminal 41 at the tip end of each power supply line 40.
According to this conventional technique, the length of the entire lamp unit can be suppressed by guiding the power supply line in a direction perpendicular to the longitudinal direction of the rod lamp.
However, this structure has a problem that a load is easily applied to the sealing portion of the lamp.
That is, since the power supply line is connected to the outer lead led out from the sealed portion in a direction perpendicular to the outer lead, when a tensile force acts on the power supply line, a shear stress is directly applied to the sealed portion through the outer lead. In the structure of this lamp, the sealing portion has a weak resistance to shear stress, and therefore, in the worst case, there is a problem that the sealing portion is broken. Therefore, in such a device structure, it is necessary to improve the mechanical strength of the seal portion.
Documents of the prior art
Patent document
Patent document 1: japanese patent laid-open publication No. 2014-099259
Disclosure of Invention
The following configuration is provided: in a lamp unit with a base, in which sealing portions of a plurality of stick-shaped lamps are fitted into a plurality of sealing portion insertion holes provided in a common base to arrange the stick-shaped lamps side by side, and a power supply line for the stick-shaped lamps is inserted from a power supply line insertion hole perpendicular to the sealing portion insertion hole, an external lead protruding from the sealing portion is connected to the power supply line inside a welding hole formed through the base, even if a tensile force acts on the power supply line, the tensile force does not directly act on the external lead, and thus, a shear stress does not act on the sealing portion.
In order to solve the above problem, in the lamp unit with a base according to the present invention, a plate-shaped power supply terminal is attached to the power supply wire, the power supply terminal is engaged with the welding hole at a position rotated from the insertion position in the welding hole to be prevented from being pulled out, and an outer lead of the rod lamp is welded to the power supply terminal.
Further, the power supply line is a common power supply line for the plurality of rod lamps, and the external leads of the plurality of rod lamps are commonly joined to power supply terminals attached to the power supply line.
Further, a plurality of power supply line insertion holes are formed in the base, a plurality of power supply lines are provided corresponding to the plurality of rod lamps, the power supply lines are inserted through the power supply line insertion holes, power supply terminals are attached to the power supply lines, and external leads of the rod lamps are individually joined to the power supply terminals.
In addition, the feed line insertion hole is formed with a groove portion reaching the welding hole in the hole axis direction, and the feed terminal attached to the feed line can be inserted into the groove portion.
Further, the welding hole is a common welding hole.
According to the present invention, since the plate-shaped power supply terminal is attached to the power supply line, these power supply terminals are inserted from the power supply line insertion hole provided in the common base, the power supply terminal is rotated in the welding hole and engaged with the welding hole, and the external lead of the lamp is welded and joined to the power supply terminal in this state, even if a tensile force acts on the power supply line, the tensile force does not directly act on the external lead by engagement with the welding hole of the power supply terminal, and an effect is obtained that no shear stress is generated on the sealed portion of the lamp.
Drawings
Fig. 1 is a partial perspective view of a lamp unit with a base of the present invention.
Fig. 2 is a perspective view of only the base of fig. 1.
Fig. 3 (a) is an X-arrow diagram and (B) is a Y-arrow diagram of fig. 2.
Fig. 4 is an explanatory view of insertion of a feeder line in the section a-a of fig. 2 (a).
Fig. 5 is a sectional view taken along line B-B of fig. 2 (a), (a) is a view in which only the power supply line is inserted, and (B) is a sectional view in which the lamp and the power supply line are combined.
Fig. 6 is a cross-sectional view taken along line C-C of fig. 2 (a), which is a cross-sectional view combining a lamp and a power supply line.
Fig. 7 (a) is a perspective view of a base of another embodiment, and (B) is a B-B sectional view combining a lamp and a power supply line.
Fig. 8 is a perspective view of a base of yet another embodiment.
Fig. 9 is an overall perspective view of the prior art.
Fig. 10 is a perspective view with the base of fig. 9 removed.
Description of the reference symbols
1 base
2 sealing part insertion hole
2a front part
2b rear part
3 insertion hole for power supply line
4 welding hole
5 groove part
10 bar-shaped lamp
11 sealing part
12 external lead
15 supply line
16 power supply terminals.
Detailed Description
Fig. 1 is a perspective view of a part of a lamp unit with a base according to the present invention, and two rod- like lamps 10 and 10 are held by a common base 1 at both ends thereof. As will be described later, the base 1 holding the lamps 10 and 10 has a plurality of (two in this example) seal portion insertion holes 2 and 2 formed in its side surface, and the lamps 10 and 10 are inserted into the respective seal portion insertion holes.
On the other hand, a power supply line insertion hole 3 is formed in the other side surface of the base 1, and a power supply line 15 common to the plurality of lamps 10 is inserted through the power supply line insertion hole 3 and connected to the lamps 10 inside the base 1.
The base 1 will be described in detail below.
Fig. 2 (a) is a left perspective view, fig. 2 (B) is a right perspective view, fig. 3 (a) is an X-arrow view of fig. 2, fig. 3 (B) is a Y-arrow view of fig. 2, and fig. 4 to 6 are a cross-sectional view a-a, a cross-sectional view B-B, and a cross-sectional view C-C of fig. 2 (a), respectively.
A plurality of sealing portion insertion holes 2, 2 corresponding to the number of lamps 10 are formed in one side surface of the base 1, and a power supply line insertion hole 3 is formed in the other side surface so as to be perpendicular to the sealing portion insertion holes 2. In this embodiment, the rod lamp 10 is two, and thus two seal portion insertion holes 2 are formed. Since the feeder 15 is a common feeder for the two lamps 10, only one feeder insertion hole 3 is formed.
As shown in fig. 3 to 6, the seal part insertion hole 2 is also formed to penetrate through the welding hole 4 together with the power supply line insertion hole 3.
The sealing portion insertion hole 2 has a two-stage shape divided into a front portion 2a and a rear portion 2b as a whole, the front portion 2a has a shape corresponding to the shape of the sealing portion 11 of the lamp 10, the sealing portion 11 is substantially rectangular in this example, and the front portion 2a is also substantially rectangular. Also, as best shown in fig. 5, the rear portion 2b of the sealing portion insertion hole 2 is formed in a circular shape into which the external lead 12 of the lamp 10 is inserted and penetrates to the soldering hole 4.
With this shape, as shown in fig. 5 (B) and 6, when the seal portion 11 of the lamp 10 is inserted into the seal portion insertion hole 2, the seal portion 11 abuts against the step portions of the front portion 2a and the rear portion 2B to perform positioning in the axial direction.
On the other hand, as shown in fig. 3 and 4, key groove-shaped groove portions 5 and 5 are formed at two upper and lower positions in the feeder line insertion hole 3, and the groove portions 5 are also formed to the welding hole 4. As described later, the power supply terminal 16 attached to the tip of the power supply line 15 is inserted through the groove portion 5.
The operation of bonding the outer lead 12 and the power supply line 15 of the lamp 10 configured as described above will be described with reference to fig. 4 to 6.
As shown in fig. 4, the plate-like power supply terminal 16 attached to the tip of the power supply line 15 is inserted into the groove portion 5(a) of the power supply line insertion hole 3. After the power supply terminal 16 is inserted into the welding hole 4 (B), the power supply line 15 and the power supply terminal 16 are rotated (C). Thereby, the power supply terminal 16 is disengaged from the groove portion 5, and the rear end portion thereof is engaged with the inner surface of the welding hole 4, thereby preventing the removal thereof.
Next, in this posture, as shown in fig. 5, the sealing portion 11 of the lamp 10 is inserted into the sealing portion insertion hole 2, and the external lead 12 is positioned on the power supply terminal 16.
Next, as shown in fig. 6, a welding jig, not shown, is inserted from above and below the welding hole 4, and the external lead 12 and the power supply terminal 16 are welded and joined.
By the above operation, the power supply terminal 16 at the tip end of the power supply wire 15 is joined to the outer lead 12 in a state of being engaged with the welding hole 4 by being rotated from the insertion position in the welding hole 4, and therefore even if a tensile force acts on the power supply wire 15, the tensile force does not act on the outer lead 12 of the lamp 10, and the seal portion 11 is not damaged.
In the above, the power supply line insertion hole 3 has the groove portion 5, and the power supply terminal 16 is inserted by the groove portion 5, but the present invention is not limited to this, and it is sufficient if the opening diameter has a diameter capable of inserting the power supply terminal 16 and a diameter smaller than the diameter, and for example, the power supply terminal may be inserted by its long diameter portion, rotated, engaged in the welding hole by its short diameter portion to prevent the extraction, and welded to the outer lead of the lamp in this posture.
In the above embodiment, a common power supply line is connected to a plurality of lamps, but the power supply lines may be connected to the lamps individually.
In this example shown in fig. 7, the power supply line insertion holes 3 and 3 are formed from both sides of the base 1 and penetrate to the welding holes 4 and 4, respectively. Power supply terminals 16 are attached to the power supply lines 15, and the power supply terminals 16 rotate in the welding holes 4, respectively, and the rear end portions thereof engage with the welding holes 4.
Of course, these power supply terminals 16, 16 are welded to the outer leads 12, 12 of the lamps 10, respectively.
In the above-described embodiment, although it is shown that the welding hole is formed for each lamp, in the example shown in fig. 8, the welding hole 4 is one welding hole common to a plurality of lamps. This can increase the opening area of the welding hole 4 and ensure ease of work. In this example, the power supply line may be a common power supply line, or may be a power supply line for each lamp.
However, as shown in the embodiments of fig. 1 to 7, the strength of the base may be weakened as compared with the case where the welding holes are provided individually, and it is necessary to use the base correctly according to the situation.
As described above, according to the present invention, the plurality of sealing portion insertion holes and the feeder line insertion hole perpendicular to the sealing portion insertion holes are formed in the base, the welding hole penetrating the base is formed in a direction perpendicular to the sealing portion insertion holes, the plate-like feeder terminal attached to the feeder line is engaged with the welding hole at a position rotated from the position where the feeder line is inserted in the welding hole and prevented from being pulled out, and the outer lead of the stick-shaped lamp is welded and joined to the feeder terminal in this posture, so that even if a tensile force acts on the feeder line, the tensile force does not directly apply to the outer lead, and a shear stress does not occur to the sealing portion of the lamp.
Claims (5)
1. A lamp unit with a base, configured in such a manner that sealing parts of a plurality of rod-shaped lamps are fitted into a plurality of sealing part insertion holes provided in a common base to arrange the rod-shaped lamps side by side, a power supply line for the rod-shaped lamps is inserted from a power supply line insertion hole perpendicular to the sealing part insertion hole, and an external lead protruding from the sealing part is connected to the power supply line inside a welding hole formed through the base,
the welding hole is perpendicular to the sealing part insertion hole and the power supply line insertion hole,
a plate-shaped power supply terminal is attached to the power supply line, the power supply terminal reaches a first position after being inserted into the welding hole, the power supply line and the power supply terminal are rotated to reach a second position, the power supply terminal is prevented from being pulled out by being engaged with the welding hole at the second position, and an external lead of the rod lamp is welded to the power supply terminal.
2. The base-mounted lamp unit according to claim 1,
the power supply line is common to the plurality of rod lamps, and external leads of the plurality of rod lamps are commonly joined to power supply terminals attached to the power supply line.
3. The base-mounted lamp unit according to claim 1,
a plurality of power supply line insertion holes are formed on the base,
the power supply lines are provided corresponding to the rod lamps, respectively, and are inserted through the power supply line insertion holes, the power supply lines are provided with power supply terminals, respectively, and the external leads of the rod lamps are individually joined to the power supply terminals.
4. The base-mounted lamp unit according to claim 1,
the feed line insertion hole is formed with a groove portion reaching the welding hole along the hole axis direction, and the feed terminal attached to the feed line can be inserted into the groove portion.
5. The base-mounted lamp unit according to claim 1,
the welding holes are a common welding hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-079539 | 2016-04-12 | ||
| JP2016079539A JP6674660B2 (en) | 2016-04-12 | 2016-04-12 | Lamp unit with base |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107420787A CN107420787A (en) | 2017-12-01 |
| CN107420787B true CN107420787B (en) | 2021-03-26 |
Family
ID=60086375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710179179.5A Active CN107420787B (en) | 2016-04-12 | 2017-03-23 | Lamp unit with base |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6674660B2 (en) |
| CN (1) | CN107420787B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018174033A (en) * | 2017-03-31 | 2018-11-08 | 東芝ライテック株式会社 | heater |
| JP6968446B2 (en) * | 2019-07-19 | 2021-11-17 | 株式会社テックヘイワ | Electric heater with connector |
| JP7229464B2 (en) * | 2019-09-02 | 2023-02-28 | ウシオ電機株式会社 | Lamps and heating devices with bases |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000149880A (en) * | 1998-11-12 | 2000-05-30 | Ushio Inc | Incandescent lamp with base attached |
| US20040201352A1 (en) * | 2003-04-14 | 2004-10-14 | Toshiyuki Okamoto | Foil sealed lamp |
| JP3688684B2 (en) * | 2003-02-27 | 2005-08-31 | 株式会社Ｓａｋ | Electric wire connector for cold cathode tubes |
| CN101221887A (en) * | 2007-01-12 | 2008-07-16 | 优志旺电机株式会社 | Pipe type incandescent lamp |
| CN101271832A (en) * | 2007-03-23 | 2008-09-24 | 日本电热株式会社 | Susceptor |
| JP5471546B2 (en) * | 2010-02-10 | 2014-04-16 | ウシオ電機株式会社 | Lamp device |
| CN203631490U (en) * | 2013-12-18 | 2014-06-04 | 鹤山市广明源照明电器有限公司 | Fixing structure for halogen lamp |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5617979Y2 (en) * | 1974-08-01 | 1981-04-27 | ||
| JP2006302522A (en) * | 2005-04-15 | 2006-11-02 | Harison Toshiba Lighting Corp | Bulb type heater and lightening device |
| JP5061785B2 (en) * | 2007-08-10 | 2012-10-31 | ウシオ電機株式会社 | Tubular lamp |
| JP5633554B2 (en) * | 2012-11-13 | 2014-12-03 | ウシオ電機株式会社 | Lamp unit with base |
-
2016
- 2016-04-12 JP JP2016079539A patent/JP6674660B2/en active Active
-
2017
- 2017-03-23 CN CN201710179179.5A patent/CN107420787B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000149880A (en) * | 1998-11-12 | 2000-05-30 | Ushio Inc | Incandescent lamp with base attached |
| JP3688684B2 (en) * | 2003-02-27 | 2005-08-31 | 株式会社Ｓａｋ | Electric wire connector for cold cathode tubes |
| US20040201352A1 (en) * | 2003-04-14 | 2004-10-14 | Toshiyuki Okamoto | Foil sealed lamp |
| CN101221887A (en) * | 2007-01-12 | 2008-07-16 | 优志旺电机株式会社 | Pipe type incandescent lamp |
| CN101271832A (en) * | 2007-03-23 | 2008-09-24 | 日本电热株式会社 | Susceptor |
| JP5471546B2 (en) * | 2010-02-10 | 2014-04-16 | ウシオ電機株式会社 | Lamp device |
| CN203631490U (en) * | 2013-12-18 | 2014-06-04 | 鹤山市广明源照明电器有限公司 | Fixing structure for halogen lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107420787A (en) | 2017-12-01 |
| JP2017191673A (en) | 2017-10-19 |
| JP6674660B2 (en) | 2020-04-01 |
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