CN204164731U - Straight lamp and lighting device - Google Patents

Abstract

The utility model provides a straight tube lamp and a lighting device. The straight tube lamp can effectively dissipate the heat generated in the light emitting part of the flexible wiring board. The straight tube lamp comprises a tube body, a lamp cap and a light emitting module (21). The tube body is cylindrical and has a light-transmitting area. The lamp cap is arranged at the end of the tube body. The light-emitting module includes: a flexible wiring substrate (30), including a light-transmitting insulating material (33) and a metal foil (34) arranged on the insulating material; and a light-emitting part (31), installed on the flexible wiring substrate . The light emitting module is arranged along the inner surface of the pipe body. The metal foil is provided in a range wider than the light emitting part in the width direction, and the size (S2) from one side (31a) of the light emitting part to one side (34a) of the metal foil, and the other side of the light emitting part The dimensions (S3) from (31b) to the other side (34b) of the metal foil are respectively larger than the dimensions (S1) between one side (31a) and the other side (31b) in the width direction of the light emitting part.

Description

Straight tube lamps and lighting devices

technical field

The utility model relates to a straight-tube lamp using a light-emitting module formed by installing a light-emitting part on a flexible wiring substrate, and an illuminating device using the straight-tube lamp.

Background technique

In the past, there is a straight tube lamp as follows: the light emitting module is accommodated in the tube body, and lamp caps are arranged at both ends of the tube body. In such a straight tube lamp, a light emitting module in which a light emitting part is mounted on a relatively firm substrate is commonly used, and the light emitting module is mounted on a metal base for heat dissipation and the like and placed in the tube.

In addition, a straight tube lamp has been proposed that uses a light emitting module in which a light emitting portion is mounted on a flexible wiring board, and arranges the light emitting module in a tube body. In this case, in order to ensure heat dissipation of the heat generated by the light emitting unit, the tube body includes a metal heat dissipation member and a light-transmitting member, and the flexible wiring board is arranged on the metal heat dissipation member.

[Background Art Document]

[Patent Document]

[Patent Document 1] Japanese Patent Laid-Open No. 2012-114034

Utility model content

[Problems to be solved by utility models]

However, even if a flexible wiring board is used, the heat generated by the light emitting part mounted on the flexible wiring board cannot be effectively dissipated unless a metal heat dissipation member is used for the tube body. In addition, if a flexible substrate is used, it becomes difficult to electrically connect the flexible wiring substrate arranged in the body of the tube to the terminals included in the base, and the electrical connection cannot be easily performed.

The problem to be solved by the present invention is to provide a straight tube lamp and a lighting device that can effectively dissipate the heat generated by the light emitting part of the flexible wiring board. In addition, the problem to be solved by the present invention is to provide a straight tube lamp and a lighting device that can easily electrically connect the flexible wiring board inside the tube and the terminal of the lamp base.

[means to solve the problem]

The straight tube lamp in the embodiment includes a tube body, a lamp base and a light emitting module. The tube body is cylindrical and has a light-transmitting area. The lamp cap is arranged at the end of the tube body. The light emitting module includes: a flexible wiring substrate including a light-transmitting insulating material and a metal foil disposed on the insulating material; and a light emitting part mounted on the flexible wiring substrate. The light emitting module is arranged along the inner surface of the pipe body. The metal foil is provided in a wider range than the light emitting part in the width direction, and the size from one side of the light emitting part to one side of the metal foil and the distance from the other side of the light emitting part to the other side of the metal foil The dimensions are respectively larger than the dimensions between one side and the other side in the width direction of the light emitting section.

In the straight tube lamp, the metal foil is a wiring pattern.

In the above-mentioned straight tube lamp, the metal foil has a light-transmitting portion that transmits light inside the metal foil surrounded by the metal foil.

In the straight tube lamp, the metal foil is formed corresponding to 1/2 to 1/4 of the circumferential direction of the tube body.

In the straight tube lamp, in the insulating material, the light transmittance of the two sides in the width direction of the insulating material is higher than the light transmittance of the center in the width direction.

In the straight tube lamp, the flexible wiring board includes a wavelength converting unit for converting the wavelength of the light emitted by the light emitting part.

The straight tube lamp in the embodiment includes a tube body, a lamp base, and a light emitting module. The tube body is cylindrical and has a light-transmitting area. The lamp holder includes terminals and is arranged at the end of the tube body. The light emitting module includes: a flexible wiring substrate arranged along the inner surface of the tube body; and a light emitting part installed on the front of the flexible wiring substrate. Wiring is provided on the flexible wiring board, and a connecting portion is provided at an end of the flexible wiring board. The connecting portion protrudes from the front surface of the flexible wiring board and electrically connects the wiring to terminals of the base.

In the above-mentioned straight tube lamp, the connection part is pried up through the cutout part provided at the end part of the flexible wiring board.

In the straight tube lamp, the end of the cutout is formed into a circular hole.

In the above-mentioned straight tube lamp, the end of the tube body is provided with a reduced-diameter portion whose diameter is smaller than that of parts other than the end.

In the above-mentioned straight tube lamp, in the flexible wiring substrate, the end portion of the flexible wiring substrate abuts against the diameter-reducing portion and is positioned.

A lighting device according to an embodiment includes a fixture main body, a lamp holder disposed on the fixture main body, and the straight tube lamp mounted on the lamp holder.

[effect of utility model]

According to the present invention, it is expected that the heat generated by the light emitting part mounted on the flexible wiring board can be efficiently dissipated by securing the heat dissipation area by the metal foil of the flexible wiring board.

According to the present invention, by providing the connecting portion at the end of the flexible wiring substrate, it can be expected to easily electrically connect the flexible wiring substrate in the tube body and the terminal of the lamp cap, and the connecting portion is tilted up from the front surface of the flexible wiring substrate. , and electrically connect the wires to the terminals of the lamp cap.

Description of drawings

Fig. 1 is a cross-sectional view showing a flexible wiring board of a straight tube lamp according to a first embodiment.

Fig. 2 is a cross-sectional view of the straight tube lamp.

Fig. 3 is a front view showing a first example of a flexible substrate used in the straight tube lamp.

Fig. 4 is a front view showing a second example of the flexible substrate used in the straight tube lamp.

Fig. 5 is a front view of the straight tube lamp.

Fig. 6 is a perspective view of a lighting device using the straight tube lamp.

Fig. 7 is a cross-sectional view showing a straight tube lamp according to a second embodiment.

Fig. 8 is a perspective view showing a straight tube lamp according to a third embodiment.

Fig. 9 is a sectional view along the tube axis of the straight tube lamp.

Fig. 10 is a cross-sectional view of the straight tube lamp in a direction perpendicular to the tube axis direction.

[explanation of the symbol]

10: lighting device

11: Straight tube lamp

12: Appliance body

13, 14: lamp holder

15: Power circuit

20: tube body

21: Lighting module

22, 23: Lamp holder

26: Translucent area

27: Reduced diameter part

28: Step Department

30: Flexible wiring board

30a: front

30b: back

31: Luminous Department

31a: One side of the light emitting unit 31

31b: the other side of the light emitting part 31

33: insulating material

34: metal foil

34a: One side of the metal foil 34

34b: the other side of the metal foil 34

35: Wiring pattern

36: Installation Department

37: Wiring Department

38: Board side connector

39: Translucent part

41: Light emitting element

44: Wiring

45: Connecting part

46: Incision

47: Link

48: round hole

50: Power supply terminal

51: Lamp side connector

52: Holder

60: wavelength conversion unit

61: phosphor layer

A1, A2: area

S1, S2, S3: Dimensions

Detailed ways

Next, a first embodiment will be described with reference to FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 , and FIG. 6 .

As shown in FIG. 6 , the lighting device 10 uses a straight tube lamp 11 . The lighting device 10 includes a fixture body 12 , sockets 13 and 14 arranged at both ends in the longitudinal direction of the fixture body 12 , and a power supply circuit 15 arranged in the fixture body 12 .

Moreover, as shown in FIG. 5 , the straight tube lamp 11 includes: a tube body 20 ; a light emitting module 21 disposed in the tube body 20 ; and lamp caps 22 and 23 disposed at both ends of the tube body 20 .

As shown in FIGS. 2 and 5 , the tube body 20 is formed in a cylindrical shape from a resin material such as glass or polycarbonate. The tube body 20 can be transparent or translucent such as milky white. The tube body 20 has a light-transmitting region 26 at least corresponding to the direction of light emitted from the tube body 20 . The transparent area 26 can be a part of the tube body 20 or the whole tube body 20 . In addition, in the straight tube type lamp 11 of this embodiment shown in figure, the whole tube body 20 has translucency. In addition, a light-diffusing material may be applied to the tube body 20, or the outer surface of the tube body 20 may be covered with a heat-shrink tube having light-diffusing properties.

In addition, as shown in Figure 1, Figure 2, Figure 3, Figure 4, and Figure 5, the light emitting module 21 includes: a flexible wiring substrate 30, which is in the shape of a long strip along the length direction of the straight tube lamp 11; The portion 31 is attached to the center in the width direction of the front surface 30 a of the flexible wiring board 30 .

As shown in FIG. 3 or FIG. 4 , the flexible wiring substrate 30 includes: an insulating material 33 having light transmission; and a metal foil 34 formed on the insulating material 33 . In addition, FIG. 3 shows a first example of a flexible wiring board 30, and FIG.

The insulating material 33 is formed to be transparent or translucent to allow light to pass through. Furthermore, the insulating material 33 is formed in a film shape and has flexibility and flexibility. Furthermore, the insulating material 33 uses, for example, a polyethylene naphthalate film.

The insulating material 33 has light diffusing properties. For example, insulating material 33 has light-diffusing properties by containing a light-diffusing material. It is preferable that the light transmittance of the both sides of the width direction of the insulating material 33 is higher than the light transmittance of the center of the width direction.

Metal foil 34 includes, for example, copper foil or aluminum (aluminum) foil, and is formed on front surface 30 a of flexible wiring board 30 . The metal foil 34 formed on the front surface 30 a of the flexible wiring board 30 is a wiring pattern (pattern) 35 that electrically connects the plurality of light emitting parts 31 . In addition, a metal foil that is not electrically connected to the wiring pattern 35 may be formed on the front surface 30 a or the back surface 30 b of the flexible wiring substrate 30 .

A plurality of mounting portions 36 electrically connecting the plurality of light emitting portions 31 to the wiring pattern 35 are formed on the metal foil 34 . The mounting portions 36 are arranged at predetermined intervals in the longitudinal direction at the center of the metal foil 34 in the width direction. Metal foil 34 is formed in the central region in the width direction of insulating material 33 , and is formed in a wide shape protruding to both sides in the width direction than mounting portion 36 and light emitting portion 31 mounted on the mounting portion 36 .

A wiring portion 37 is provided at one end of the insulating material 33 (flexible wiring board 30 ). A board-side connector (connector) 38 for electrically connecting to the base 22 side is attached to the wiring portion 37 . The board-side connector 38 is electrically connected to the wiring pattern 35 .

In the metal foil 34 of the first example shown in FIG. 3 , the metal foil 34 is formed in all the formation regions of the metal foil 34 .

The metal foil 34 of the second example shown in FIG. 4 has a light-transmitting portion 39 that transmits light inside the metal foil 34 surrounded by the metal foil 34 . That is, there is a region where the metal foil 34 is not formed within the region where the metal foil 34 is formed.

The light emitting unit 31 uses a light emitting element 41 . As the light-emitting element 41, for example, there is a light-emitting diode (Light-Emitting Diode, LED) or organic electroluminescence (Electron Luminescence, EL). In this embodiment, a surface mount type surface mount device (Surface Mount Device, SMD) package (Surface Mount Device, SMD) package (Surface Mount Device, SMD) including an LED is used as the light emitting element 41 . Furthermore, the plurality of light emitting sections 31 are arranged at the center in the width direction of the front surface 30 a of the flexible wiring board 30 , and are arranged at predetermined intervals in the longitudinal direction.

Furthermore, the flexible wiring board 30 is inserted into the tube body 20 in a state bent in the width direction so that the front surface 30 a is inward. In the arrangement state, the flexible wiring board 30 is bent along the inner surface of the pipe body 20, and the back surface 30b of the flexible wiring board 30 is bent along the inner peripheral surface of the pipe body 20 as the flexible wiring board 30 is bent. touch.

The dimension in the longitudinal direction of the insulating material 33 (flexible wiring board 30 ) is formed to be approximately the same as the dimension in the longitudinal direction of the pipe body 20 .

The dimension of the width direction of the insulating material 33 (flexible wiring board 30 ) is preferably a dimension corresponding to the case where the insulating material 33 (flexible wiring board 30 ) ) is arranged in an area greater than or equal to 1/2 of the circumferential direction of the pipe body 20 . The region equal to or greater than 1/2 also includes the entire circumference of the pipe body 20 in the circumferential direction. If it is such a size, by arranging the flexible wiring board 30 in the pipe body 20, it can be arranged in a state where the flexible wiring board 30 is bent along the inner surface of the pipe body 20, and the back surface 30b of the flexible wiring board 30 Contact along the inner peripheral surface of the pipe body 20 follows the bending of the flexible wiring board 30 .

The metal foil 34 is provided in a wider range than the light emitting portion 31 in the width direction. If the dimension between one side portion 31a and the other side portion 31b in the width direction of the light emitting portion 31 is S1, the dimension from the one side portion 31a of the light emitting portion 31 to the one side portion 34a of the metal foil 34 is S2. , and assuming that the dimension from the other side 31b of the light emitting part 31 to the other side 34b of the metal foil 34 is S3, then S2 and S3 are respectively greater than S1, and have the relationship of S1<S2 and S1<S3. Furthermore, the metal foil 34 is formed so as to correspond to a region of 1/2 to 1/4 of the circumferential direction of the pipe body 20 .

In FIG. 2, 1/2 area is shown as A2, and 1/4 area is shown as A1.

The area of the metal foil 34 in the first example shown in FIG. 3 is in the range of 15% to 45% of the area of the peripheral surface of the pipe body 20 . In addition, the area of the metal foil 34 in the second example shown in FIG. 4 is in the range of 30% to 60% of the area of the peripheral surface of the pipe body 20 .

In addition, the lamp cap 22 and the lamp cap 23 are GX16t-5 type lamp caps. The base 22 and the base 23 are each formed in a bottomed cylindrical shape from an electrically insulating resin. Both ends of the tube body 20 in the longitudinal direction are inserted into the base 22 and the base 23 . Moreover, the lamp cap 22 and the lamp cap 23 are respectively glued or clipped into the end of the tube body 20 to be fixed.

The cap 22 is a power supply terminal side cap, and a pair of power supply terminals 50 are arranged as terminals. The pair of power supply terminals 50 are formed in an L-shape and protrude from the base 22 so as to face opposite to each other. The pair of power supply terminals 50 are electrically connected to a base-side connector 51 arranged in the base 22 . The base side connector 51 is connected to the board side connector 38 of the flexible wiring board 30 .

The cap 23 is a non-power supply terminal side cap or an earth terminal side cap, and one holder 52 is disposed thereon. The holder 52 is formed in a rectangular parallelepiped and protrudes from the base 23 .

Next, the operation of this embodiment will be described.

When assembling the straight tube lamp 11, connect the substrate side connector 38 of the flexible wiring substrate 30 to the lamp base side connector 51 of the lamp cap 22, and connect the flexible wiring substrate 30 from one end of the tube body 20 so that its front side 30a The curved side facing inward is inserted into the tube body 20 . In addition, in the process of inserting the flexible wiring substrate 30 from one end of the tubular body 20 while being bent so that the front surface 30a faces inward, the substrate side of the flexible wiring substrate 30 may be connected. The connector 38 is connected to the base side connector 51 of the base 22 .

The lamp cap 22 is sleeved and fixed on one end of the tube body 20 , and the lamp cap 23 is sleeved and fixed on the other end of the tube body 20 .

Furthermore, in the straight tube lamp 11 assembled in this way, the wiring of the flexible wiring board 30 is made by connecting the board-side connector 38 of the flexible wiring board 30 to the base-side connector 51 of the base 22 . The wire pattern 35 is electrically connected to the power supply terminal 50 of the base 22 .

The flexible wiring board 30 arranged in the pipe body 20 is arranged in a state in which the flexible wiring board 30 is bent along the inner surface of the pipe body 20, and the back surface 30b of the flexible wiring board 30 follows the bending of the flexible wiring board 30. And contact along the inner peripheral surface of the pipe body 20 .

In addition, the straight tube lamp 11 is attached to the lighting device 10 , and the direct current power is supplied from the power supply circuit 15 to the straight tube lamp 11 to make each light emitting unit 31 emit light. The light emitted by the light-emitting part 31 is incident into the tube body 20 , and passes through the tube body 20 to exit to the lighting space. Part of the light emitted by the light-emitting part 31 is incident on the insulating material 33 of the flexible wiring substrate 30 , passes through the insulating material 33 and further passes through the tube body 20 and is output to the lighting space.

The heat generated by the light emitting part 31 when emitting light is thermally transferred to the metal foil 34 of the flexible wiring board 30, and is transferred from the metal foil 34 to the insulating material 33 and the tube body 20, and the heat is dissipated from the outer surface of the tube body 20 to the outside. in the atmosphere.

At this time, the metal foil 34 is provided in a range wider than the light emitting portion 31 in the width direction. In other words, if the dimension between one side portion 31a and the other side portion 31b in the width direction of the light emitting portion 31 is set to S1, the distance from the one side portion 31a of the light emitting portion 31 to the one side portion 34a of the metal foil 34 is The size is set as S2, and the size from the other side portion 31b of the light emitting part 31 to the other side portion 31b of the metal foil 34 is set as S3, then S2 and S3 are respectively greater than S1, and have the relationship of S1<S2 and S1<S3 .

Therefore, the area of the metal foil 34 of the flexible wiring board 30 is large, and the heat generated by the light emitting part 31 can be transferred to the entire area of the large-area metal foil 34, and from the large-area metal foil 34 through the insulating material 33 and the tube. Body 20 dissipates heat to the outside atmosphere.

In this way, in the straight tube lamp 11 of this embodiment, even without using a metal heat dissipation member, the heat dissipation area by the metal foil 34 of the flexible wiring board 30 can be ensured, and it is possible to mount the lamp on the flexible wiring board. The heat generated by the light-emitting part 31 of 30 is effectively dissipated.

In addition, the metal foil 34 is formed corresponding to a region of 1/2 to 1/4 of the circumferential direction of the pipe body 20 . If it is larger than 1/2 of the area, then the area shielded by the metal foil 34 will increase, and the light emitted to the side or rear relative to the front side opposite to the light emitting part 31 will be reduced, and it will be emitted to the outside of the tube body 20 On the other hand, if it is less than 1/4 of the area, the area of the metal foil 34 is reduced, making it difficult to ensure the required heat dissipation. Therefore, by setting it as a region of 1/2 to 1/4, wide light distribution characteristics and light emission efficiency can be ensured, and desired heat dissipation properties can be secured.

In addition, when the straight tube lamp 11 uses the flexible wiring board 30 shown in FIG. Through the transparent portion 39 , the light from the light emitting portion 31 is emitted to the outside of the tube body 20 through the transparent portion 39 . Therefore, desired heat dissipation can be ensured, a wide light distribution can be obtained, and light emission efficiency can be improved.

In addition, since the insulating material 33 has light diffusing properties, the light incident on the insulating material 33 region close to the light emitting parts 31 is diffused, thereby reducing the occurrence of images of the light emitting parts 31 on the tube body 20 .

Furthermore, since the light transmittance of both sides in the width direction of the insulating material 33 is higher than that of the center in the width direction, in the area of the insulating material 33 close to the light emitting part 31, the image generation of each light emitting part 31 can be alleviated. In the case of the tube body 20 , in the region away from the insulating material 33 of the light emitting part 31 where the images of the light emitting parts 31 are reduced in the tube body 20 , the light transmittance is high, and the light output efficiency can be improved.

In addition, since the metal foil 34 is also used as the wiring pattern 35, the flexible wiring board 30 can be easily manufactured.

Next, a second embodiment is shown in FIG. 7 . In addition, the same code|symbol is used for the same structure as 1st Embodiment, and the description of the structure and operation effect is abbreviate|omitted.

The flexible wiring board 30 includes a wavelength conversion unit 60 that converts the wavelength of light incident from the light emitting unit 31 . The wavelength conversion unit 60 includes a phosphor layer 61 formed on the front or back of the insulating material 33 . Phosphor layer 61 contains a phosphor that converts the wavelength of light from light emitting unit 31 .

When the insulating material 33 is arranged on the entire inner surface of the tube body 20, since the phosphor layer 61 is arranged on the whole tube body 20, the light converted by the phosphor layer 61 makes the whole tube body 20 emit light uniformly. Therefore, the light diffusivity of the tube body 20 can be reduced or eliminated, thereby improving the light output efficiency.

In addition, the flexible wiring board 30 of the first embodiment may also include the wavelength conversion unit 60 .

Next, a third embodiment is shown in FIGS. 8 , 9 , and 10 . In addition, the same code|symbol is used for the same structure as 1st Embodiment, and the description of the structure and operation effect is abbreviate|omitted. Next, a third embodiment will be described with reference to FIGS. 5 , 6 , 8 , 9 , and 10 .

As shown in Fig. 5, Fig. 6, Fig. 8, Fig. 9, and Fig. 10, the two ends of the pipe body 20 are formed with diameter-reducing portions 27 whose diameters are smaller than the parts other than the ends, that is, the middle portion of the pipe body 20. . On the inner surface of the pipe body 20 , a step portion 28 is formed between the middle portion of the pipe body 20 and the reduced diameter portion 27 at the end of the pipe body 20 .

In addition, the light emitting module 21 includes: a strip-shaped flexible wiring board 30 ; and a plurality of light emitting parts 31 mounted on the center of the width direction of the front surface 30 a of the flexible wiring board 30 .

The flexible wiring board 30 is formed by laminating a film-like insulating material 33 and pattern-like wiring 44 . The insulating material 33 is formed to be transparent to transmit light, semi-transparent to have light diffusivity, or opaque to not transmit light. When it is not transparent, a high reflective film having a high light reflectance may be formed on the front surface 30 a of the flexible wiring board 30 . The wiring 44 is arranged along the longitudinal direction in the central region of the insulating material 33 in the width direction. Furthermore, the plurality of light emitting units 31 are electrically connected to the wiring 44 , and the plurality of light emitting units 31 are electrically connected in series through the wiring 44 .

The dimension in the longitudinal direction of the flexible wiring board 30 is formed to be equal to or slightly shorter than the interval between the reduced diameter portions 27 (step portions 28 ) at both ends of the tube body 20 . In addition, the size of the width direction of the flexible wiring board 30 is formed in a range that is wider than the inner diameter of the pipe body 20. By arranging the flexible wiring board 30 in the pipe body 20, the flexible wiring board 30 can be made The inner surface of the pipe body 20 is curved, and the back surface 30 b of the flexible wiring board 30 is in contact along the inner peripheral surface of the pipe body 20 .

A connecting portion 45 is provided at one end portion of the flexible wiring board 30 . The connection portion 45 is a part of the insulating material 33 including the wiring 44 that is lifted from the flexible wiring board 30 through the notch portions 46 on both sides. The side opposite to the end (tip end) of the connecting portion 45 is connected to the flexible wiring board 30 via the connecting portion 47 . Furthermore, the connecting portion 45 is configured to be bent from the flexible wiring board 30 at the connection portion 47 and to be raised from the front surface 30 a of the flexible wiring board 30 . In addition, the end portion of the notch portion 46 is formed in a circular hole shape. That is, a circular hole 48 having a diameter larger than the width of the notch 46 is formed at the end of the notch 46 . In addition, a board-side connector 38 for electrically connecting to the base 22 side is attached to the front end side of the connection portion 45 . The board-side connector 38 is electrically connected to the wiring 44 . In addition, in this embodiment, the connecting portion 45 is longer than the end of the flexible wiring board 30 , but may be the same length as the end of the flexible wiring board 30 .

Next, the operation of this embodiment will be described.

When assembling the straight tube lamp 11, connect the substrate-side connector 38 of the connecting portion 45 of the flexible wiring substrate 30 to the lamp-side connector 51 of the lamp cap 22, and connect the flexible wiring substrate 30 from one end of the tube body 20 to One side is bent so that the front side 30a faces inward, and it is inserted into this tubular body 20 . In addition, in the process of inserting the flexible wiring substrate 30 from one end of the tubular body 20 while being bent so that the front surface 30 a faces inward, the connecting portion 45 of the flexible wiring substrate 30 may be inserted into the tubular body 20 . The board-side connector 38 of the base is connected to the base-side connector 51 of the base 22 .

The lamp cap 22 is sleeved and fixed on one end of the tube body 20 , and the lamp cap 23 is sleeved and fixed on the other end of the tube body 20 .

Furthermore, in the straight tube lamp 11 assembled in this way, the flexible wiring is connected by connecting the board-side connector 38 of the connecting portion 45 of the flexible wiring board 30 and the base-side connector 51 of the base 22 . The wiring 44 of the substrate 30 is electrically connected to the power supply terminal 50 of the base 22 .

In addition, the flexible wiring board 30 arranged in the pipe body 20 is kept in a bent state by being in contact with the inner surface of the pipe body 20, and the back surface 30b of the flexible wiring board 30 is in contact with the inner surface of the pipe body 20, and utilizes the flexible The back surface 30 b of the flexible wiring board 30 is pressed against the inner surface of the tube body 20 by the restoring force of the wiring board 30 to return to a planar shape in response to the bending deformation.

Furthermore, both ends in the longitudinal direction of the flexible wiring board 30 are in contact with the reduced diameter portions 27 (step portions 28 ) at both ends of the tube body 20 , so that they are positioned relative to the tube body 20 and maintain the length of the flexible wiring board 30 . direction position.

Furthermore, the board-side connector 38 of the connecting portion 45 is connected to the base-side connector 51 of the base 22 through the inner diameter side of the reduced-diameter portion 27 of the tubular body 20, whereby the connecting portion 45 is smaller than the flexible wiring board 30. The front side 30a is tilted. Furthermore, when the connecting portion 45 protrudes from the end of the flexible wiring board 30 , the connecting portion 45 rides on the reduced-diameter portion 27 of the tube body 20 and protrudes from the front surface 30 a of the flexible wiring board 30 .

In this way, in the straight tube lamp 11 of this embodiment, the power supply terminal 50 protruding from the front surface 30 a of the flexible wiring board 30 and connecting the wiring 44 to the base 22 is provided at the end of the flexible wiring board 30 . The connecting portion 45 for electrical connection can easily electrically connect the flexible wiring board 30 in the tube body 20 and the power supply terminal 50 of the lamp base 22 .

In addition, since the connecting portion 45 is lifted through the notch portion 46 provided at the end of the flexible wiring substrate 30, it can be easily lifted from the front surface 30a of the flexible wiring substrate 30, so that no stress is applied to the flexible wiring substrate 30. load.

Furthermore, since the end of the notch 46 is formed in a circular hole shape, it is possible to prevent the flexible wiring board 30 from being torn from the end of the notch 46 .

In addition, when the reduced-diameter portion 27 is provided at the end of the tube body 20 , electrical connection to the power supply terminal 50 of the base 22 can be achieved without applying a load to the flexible wiring board 30 .

In addition, the end portion of the flexible wiring board 30 can be positioned and held in contact with the narrowed portion 27 of the tube body 20, thereby preventing the positional displacement of the flexible wiring board 30 in the tube body 20 in the longitudinal direction. . Therefore, it is possible to prevent a load from being applied to the connection portion 45 due to the positional displacement of the flexible wiring board 30 .

In addition, the vicinity of the connecting portion 47 of the connecting portion 45 can be bent from the flexible wiring board 30 to form a stress absorbing unit that corresponds to the position and position of the flexible wiring board 30 when the tube body 20 thermally expands and contracts. The stress in the longitudinal direction of the flexible wiring board 30 is absorbed by changing the interval between the connection positions of the base 22 .

In addition, the tube body 20 is not limited to the tube body 20 having the reduced diameter portion 27 at the end, and may be a tube body 20 without the reduced diameter portion 27 at the end. In the case of no diameter reduction portion 27, the flexible wiring in the tube body 20 can be easily connected by providing the connecting portion 45 at the end of the flexible wiring substrate 30 with a connection portion 45 protruding from the front surface 30a of the flexible wiring substrate 30. The wire substrate 30 is electrically connected to the power supply terminal 50 of the base 22 .

Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in other various embodiments, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope or spirit of the invention, and are included in the invention described in the claims and their equivalents.

Claims (12)

1. a Straight lamp, is characterized in that comprising:

Cylindric body, has transmission region;

Lamp holder, is disposed in the end of described body; And

Light emitting module, along the internal surface configurations of described body, and comprises: flexible wiring substrate, comprises the insulating materials with light transmission and the metal forming being arranged at this insulating materials; And illuminating part, be arranged on this flexible wiring substrate; Described metal forming is arranged at scope wider than described illuminating part in the direction of the width, and a sidepiece of described illuminating part is greater than the size between a sidepiece of the width of described illuminating part and the other side respectively to the other side of the size of a sidepiece of described metal forming and described illuminating part to the size of the other side of described metal forming.

2. Straight lamp according to claim 1, is characterized in that: described metal forming is Wiring pattern.

3. Straight lamp according to claim 1, is characterized in that: described metal forming has in the inner side of the described metal forming of being surrounded by described metal forming the transmittance section making light transmission.

4. Straight lamp according to claim 1, is characterized in that: described metal forming corresponds to the region of 1/2 ~ 1/4 of the circumferential direction of described body and formed.

5. Straight lamp according to claim 1, is characterized in that: in described insulating materials, and the light transmission of the both sides of the width of described insulating materials is higher than the light transmission of the central authorities of width.

6. Straight lamp according to claim 1, is characterized in that: described flexible wiring substrate comprises the wavelength conversion unit of the wavelength of the light that the described illuminating part of conversion sends.

7. a Straight lamp, is characterized in that comprising:

Cylindric body, has transmission region;

Lamp holder, comprises terminal, and is disposed in the end of described body; And

Light emitting module, comprising: flexible wiring substrate, along the internal surface configurations of described body; And illuminating part, be arranged on the front of this flexible wiring substrate; Arrange distribution at described flexible wiring substrate, and arrange connecting portion in the end of described flexible wiring substrate, described connecting portion tilts than the front of described flexible wiring substrate, and is electrically connected with the described terminal of described lamp holder by described distribution.

8. Straight lamp according to claim 7, is characterized in that: described connecting portion via be arranged on described flexible wiring substrate end notch and levered up.

9. Straight lamp according to claim 8, is characterized in that: the end of described notch is formed as circular poroid.

10. Straight lamp according to claim 7, is characterized in that: described body to arrange the diameter reducing diameter part less than the position beyond this end in end.

11. Straight lamps according to claim 10, is characterized in that: described flexible wiring substrate is that the end abutment of described flexible wiring substrate is located at described reducing diameter part.

12. 1 kinds of lighting devices, is characterized in that comprising:

Appliance body;

Lamp socket, is configured in described appliance body; And

Straight lamp according to any one of claim 1 to 11, is arranged on described lamp socket.