TW201447172A - Straight tube lamp and illuminate apparatus - Google Patents

Abstract

A straight tube lamp which may increase the insulation between a lamp feet and a side surface of a lamp cap body and may facilitate installation of the lamp cap toward a socket, and an illuminate apparatus using the straight tube lamp are provided. The straight tube lamp (12) includes a light source unit, a straight tube cover (20) and a lamp cap (22). The straight tube cover (20) is straight-tube shaped, and at least a part of the straight tube cover is transparent. The straight tube cover (20) accommodates the light source unit. The lamp cap (22) includes a lamp cap body (30) disposed at an end portion of the straight tube cover (20) and having insulation, and a pair of lamp feet (31) protruding from an end surface of the lamp cap body (30) along a lamp longitudinal direction. A peripheral wall portion (36) continuous with a side surface of the lamp cap body (30) is formed on the end surface of the lamp cap body (30), and a recess portion (38) is formed between the peripheral wall portion (36) and the pair of lamp feet (31).

Description

Straight tube lamp and lighting device

Embodiments of the present invention relate to a straight tube type lamp using a lamp cap having a pair of lamp pins, and an illumination device using the same.

Conventionally, in the case of a straight tube type lamp using a light source unit (LED), a standard of the Japan Electron Ball Industry Association (JEL801) "with an L-shaped foot lamp GX16t-5" is sometimes used. In the straight tube type LED lamp system (system) (for general lighting), a lamp holder with a pair of L-shaped lamp legs is used to replace the G13 type lamp used in the straight tube type fluorescent lamp.

Since the L-shaped lamp base is formed by bending a flat metal plate, the width is wider than that of the cylindrical lamp base used in the G13 type cap, and the lamp cap is attached to the socket. When the lower portion is exposed to the outside, the creepage distance between the side of the lamp cap and the L-shaped lamp pin becomes short, and the hand or the like may touch the lamp leg.

In addition, it corresponds to a T5 size (for example, 16 mm) whose diameter is smaller than that of a straight tube type fluorescent lamp using a G13 type lamp head, and a straight tube type fluorescent lamp using a G5 type lamp cap Light lamp, while providing a straight tube type lamp using a light source unit with LEDs, if a lamp head having an L-shaped lamp foot is used instead of the G5 type lamp head, the creeping distance between the side of the lamp cap and the L-shaped lamp pin becomes more short.

Further, there is a base structure in which a protruding portion protruding from a peripheral region is provided in a central portion of the end surface of the base, and a pair of lamp legs are protruded from the protruding portion. The base structure has a longer creeping distance between the pair of lamp legs and the side surface of the base than the structure without the protruding portion, and the insulation property is improved.

[Background literature]

[Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2012-104357

As in the related art, a protruding portion that protrudes from the peripheral region is provided in the central portion of the end surface of the base body, and the base structure in which the pair of lamp legs are protruded from the protruding portion is smaller than the structure in which the base is not protruded. The creeping distance between the two becomes longer, and the insulation property is improved. However, when the lamp cap is mounted in the socket, the protruding portion is easily caught at the front end portion of the socket, and the mounting property of the lamp cap to the socket is impaired.

An object of the present invention is to provide a straight tube type lamp which can improve the insulation between the lamp pin and the side surface of the base body of the lamp body, and which can improve the mounting property of the lamp cap to the socket, and an illumination device using the same.

The straight tube type lamp of the embodiment includes a light source unit, a straight cover and a base. The straight tube cover is a straight tube type, at least a part of which has light transmissivity, and the light source is single yuan. The base includes a base body that is disposed at an end of the straight tube cover and has an insulating property, and a pair of lamp legs that protrude from the end of the base body toward the length of the lamp. A peripheral wall portion continuous with the side surface of the base body is formed on the end surface of the base body, and a groove portion is formed between the peripheral wall portion and the pair of lamp legs.

According to the invention, since the groove portion is formed between the peripheral wall portion continuous with the side surface of the base body and the lamp pin at the end surface of the base body, the creeping distance between the side surface of the base body and the lamp pin can be ensured, and the insulation property can be improved. Moreover, when the lamp cap is mounted in the socket, the lamp cap is not caught on the socket, and it is expected that the lamp cap is attached to the socket well.

10‧‧‧Lighting device

11‧‧‧ apparatus body

12‧‧‧ straight tube lamp

13, 14‧‧ ‧ socket

15‧‧‧Power circuit

20‧‧‧ straight tube cover

21‧‧‧Light source unit

22, 23‧‧‧ lamp holder

25‧‧‧Lighting Module

26‧‧‧Substrate

27‧‧‧Lighting elements

30‧‧‧ lamp body

31‧‧‧light feet

33‧‧‧ Side section

34‧‧‧End face

35‧‧‧Marking Department

36‧‧‧Walls

37‧‧‧Central area

38‧‧‧Slots

39‧‧‧Protruding

40‧‧‧ mounting holes

42‧‧‧foot

43‧‧‧ protrusion

50‧‧‧Socket body

51‧‧‧A pair of terminals

52‧‧‧Rotator

53‧‧‧ insertion port

54‧‧‧ openings

55‧‧‧Insert slot

60‧‧‧metal cover

61‧‧‧Cards

L‧‧‧ arrow

Fig. 1 is a perspective view showing a base of a straight tube type lamp according to a first embodiment.

Fig. 2 is a perspective view of the straight tube type lamp.

Figure 3 is a front elevational view of the socket in which the straight tube type lamp is mounted.

4 is a perspective view of an illumination device using the straight tube type lamp.

Fig. 5 is a perspective view showing a base of a straight tube type lamp according to a second embodiment;

Fig. 6 is an end view showing a base of a straight tube type lamp of a third embodiment.

Fig. 7 is a perspective view showing a base of a straight tube type lamp according to a fourth embodiment;

Next, a first embodiment will be described with reference to Figs. 1 to 4 .

As shown in FIG. 4, the illuminating device 10 is, for example, an embedded illuminating device for a dual lamp, and includes a long instrument body 11 and a straight tube type lamp 12 disposed in the device body 11, and disposed oppositely in the device body 11. Both ends of the straight tube type lamp 12 are provided with a socket 13, a socket 14, and a power supply circuit 15 disposed in the apparatus main body 11.

Further, as shown in FIG. 2, the straight tube type lamp 12 is, for example, a T5 size having a diameter of 16 mm, and includes a cylindrical straight tube cover 20, a light source unit 21 housed in the straight tube cover 20, and respective units. The base 22 and the base 23 are at the ends of the straight tube cover 20.

The straight tube cover 20 is made of, for example, a synthetic resin, and at least a portion of the peripheral wall corresponding to the light irradiation direction has light transmissivity.

In the light source unit 21, a plurality of light-emitting modules 25 are disposed along the longitudinal direction of the lamp, for example, in a base (not shown) formed by a material such as aluminum along the longitudinal direction of the lamp. The light-emitting module 25 includes a substrate 26 and a plurality of light-emitting elements 27 mounted on the substrate 26 along the longitudinal direction of the lamp. The light-emitting element 27 is, for example, an LED element or an electroluminescence (EL) element. When it is an LED element, a surface mount type surface mount device (SMD) package is used, or more A chip on board (COB) module in which LED elements are mounted on a substrate 26 and sealed by a resin containing a phosphor.

As shown in Fig. 1, the base 22 on one end side of the straight tube type lamp 12 includes a base body 30 and a pair of bases 31 projecting from the end of the base body 30 toward the length of the lamp.

The base body 30 is made of, for example, synthetic resin, and has a cylindrical side surface portion (circumferential surface portion) 33 and an end surface portion 34 provided to close the end surface of the side surface portion 33.

In the side surface portion 33, a concave portion indicating the direction in which the pair of lamp legs 31 are arranged is formed at a position corresponding to the direction in which the pair of lamp legs 31 are arranged (arrangement direction) and close to the side of the straight tube cover 20 opposite to the end surface portion 34 side. Marker portion 35. In addition, the marking portion 35 may also be a protrusion that protrudes from the side surface portion 33.

An annular peripheral wall portion 36 continuous with the side surface portion 33 is formed around the end surface portion 34, and a central portion 37 that is substantially flush with the front end side of the peripheral wall portion 36 is formed inside the peripheral wall portion 36. Between the peripheral wall portion 36 and the central portion 37, the groove portion 38 recessed from the peripheral wall portion 36 and the central portion 37 is formed in an annular shape along the inner side of the peripheral wall portion 36. A protruding portion 39 that protrudes from the peripheral wall portion 36 and the central portion 37 is formed along the diameter direction of the end surface portion 34 including the peripheral wall portion 36, and a pair of lamp legs 31 are protruded from the protruding portion 39. A mounting hole 40 for screwing the base body 30 to the base of the light source unit 21 is formed in the central portion 37 of the end surface portion 34.

The groove portion 38 is also formed in a part of the protruding portion 39, and the protruding portion 39 is divided into a portion of the peripheral wall portion 36 and a portion of the central portion 37. Therefore, the groove portion 38 is formed between the peripheral wall portion 36 and the pair of lamp legs 31 so as to surround the pair of lamp legs 31.

Further, the pair of lamp legs 31 are formed by press-forming a conductive metal plate material into an L shape, and include a leg portion 42 projecting from the end surface portion 34 (projecting portion 39) of the cap body 30 toward the lamp length direction, and The front end of the pair of leg portions 42 is bent toward the outer side direction opposite to each other to protrude from the protrusion 43.

Further, the width dimension of the pair of lamp pins 31 is, for example, 3.6 mm to 4.0 mm, which is wider than the width dimension (2.29 mm to 3.00 mm) defined by the G5 type base. Therefore, the base 22 including the pair of bases 31 cannot be interchanged with the G5 type base, and cannot be mounted (inserted) to the G5 type socket.

The pair of lamp legs 31 are electrically connected to a pair of DC power input portions of the light-emitting module 25 inside the base 22 .

Further, as shown in FIG. 2, the base 23 on the other end side of the straight tube type lamp 12 has the same configuration as that of the base 22, and includes a base body 30 and a pair of bases 31 projecting from the end faces of the base body 30. The pair of lamp legs 31 of the base 23 are short-circuited in the base 23.

In addition, the straight tube type lamp 12 is disposed in such a manner that the lamp caps 22 at both ends and the pair of lamp legs 31 of the lamp cap 23 are aligned in the same direction, and the surface parallel to the direction and the light emitting module 25 of the light emitting module 25 are mounted. The mounting faces of the substrates 26 are parallel.

Further, as shown in FIG. 3, the socket 13 and the socket 14 are rotated, and after the pair of lamp pins 31 are inserted into a predetermined insertion position, they are rotated about the lamp axis of the straight tube type lamp 12. Installed at 90°. The socket 13 and the socket 14 have a common structure, and include a socket body 50, a pair of terminals 51 disposed in the socket body 50, and a rotator 52 rotatably disposed in the socket body 50. An insertion opening 53 through which the lamp pin 31 is inserted is formed on the front end side of the socket main body 50, and a circular opening portion 54 in which the rotator 52 is rotatably disposed is formed on the front surface of the socket main body 50. A pair of terminals 51 are disposed on both sides of the rotator 52. An insertion groove 55 through which the lamp pin 31 is inserted is formed in the rotator 52. Moreover, the socket 13 and the socket 14 are configured to be formed with the G5 lamp The socket of the head has the same structure and size, but a pair of wide legs 31 for inserting the opening 53 and the insertion slot 55 are inserted.

Further, the power supply circuit 15 shown in FIG. 4 inputs a commercial alternating current power source and converts it into predetermined direct current power, and supplies the converted direct current power to the light source unit 21 of the straight tube type lamp 12 through the socket 13 and the socket 14.

In the apparatus main body 11, wiring is performed in such a manner that two of the pair of terminals 51 of the two sockets 13 and the sockets 14 are electrically connected to each other by a connection line, and a pair of power supply circuits 15 are respectively connected to the other pair of terminals. Output line. Thereby, even when the straight tube type lamp 12 is connected between the socket 13 and the socket 14 in an arbitrary direction, the power source circuit 15 can supply power to the light source unit 21 of the straight tube type lamp 12.

Further, when the straight tube type lamp 12 configured in this manner is installed between the socket 13 and the socket 14, the base 22 of the both ends and the pair of bases 31 of the base 23 are inserted from the front end side of the socket 13 and the socket 14. After the port 53 is inserted into the predetermined insertion position, the pair of lamp pins 31 are rotated by 90° around the lamp axis of the straight tube type lamp 12 to a predetermined installation position.

At this time, the direction in which the pair of lamp legs 31 are arranged is confirmed by the marking portion 35 provided in the base 22 and the base 23, whereby the pair of the legs 31 can be easily inserted into the position of the insertion opening 53 of the socket 13 and the socket 14. Further, since the marking portion 35 is provided at the side surface portion 33 of the base 22 and the base 23 on the side of the straight tube cover 20 opposite to the end surface portion 34 side, the position of the marking portion 35 can be easily observed.

Further, a protruding portion 39 is protruded from the end portion 34 of the base 22 and the base 23, but the protruding portion 39 also extends toward the central portion 37 and the circumference continuous with the side portion 33. Since the wall portion 36 is provided to protrude, the protruding portion 39 does not get caught in the front end portion of the socket, and the pair of the lamp pins 31 of the base 22 and the base 23 can be inserted from the insertion opening 53 of the socket 13 and the socket 14 to a predetermined insertion position.

The pair of lamp pins 31 are rotated by 90° around the lamp axis of the straight tube type lamp 12 to a predetermined mounting position, and are electrically connected to the pair of terminals 51.

Then, the predetermined DC power is supplied to the light source unit 21 of the straight tube type lamp 12 via the power supply circuit 15, the light emitting element 27 of the light source unit 21 is turned on, and the light from the light emitting element 27 is transmitted through the straight tube cover 20 to the illumination space.

In addition, the base 22 and the base 23 including the L-shaped base 31 cannot be interchanged with the G5 type base, and cannot be installed (inserted) into the socket of the G5 type, and can only be installed (inserted) to the appropriate socket 13 and socket 14. In the installed state, the protruding portion 39 of the pair of lamp legs 31 is caught on the socket 13 and the socket 14 side, and even if the size of the lamp length direction changes due to temperature change or deformation of the straight tube type lamp 12, The straight tube type lamp 12 is prevented from coming off the socket 13 and the socket 14.

In the straight tube type lamp 12 configured as described above, the groove portion 38 is formed between the peripheral wall portion 36 continuous with the side surface portion 33 of the base body 30 and the lamp leg 31 at the end surface of the base body 30, so that the base body 30 can be secured. The creeping distance is improved by the creeping distance between the side surface portion 33 and the lamp leg 31 (see arrow L in Fig. 1). Further, since the groove portion 38 is configured to ensure the creeping distance, when the base 22 and the base 23 are attached to the socket 13 and the socket 14, the base 22 and the base 23 are not caught on the socket 13 or the socket 14, and The mounting of the base 22 and the base 23 to the socket 13 and the socket 14 can be improved.

Further, the groove portion 38 is formed in a ring shape along the inner side of the peripheral wall portion 36, and therefore It is possible to ensure the insulation between the entire circumference of the side surface portion 33 of the base 22 and the base 23 and the creeping distance of the base 31.

Next, a second embodiment will be shown in FIG. 5. In addition, the same reference numerals as in the first embodiment are used, and the description of the same configurations and operational effects will be omitted.

The central portion 37 of the end surface portion 34 of the cap 22 is formed to be recessed from the peripheral wall portion 36. In other words, the groove portion 38 is formed between the peripheral wall portion 36 and the lamp leg 31 which are continuous with the side surface portion 33 of the base body 30 in a state of being formed over the entire inner region of the peripheral wall portion 36.

In this case, the creeping distance between the side surface portion 33 of the base body 30 and the base 31 can be ensured, and the mounting property of the base 22 and the base 23 to the socket 13 and the socket 14 can be improved.

Next, a third embodiment is shown in Fig. 6 . Incidentally, the same reference numerals are used for the respective embodiments, and the description of the same configurations and operational effects will be omitted.

A concave marking portion 35 indicating the arrangement direction of the pair of lamp legs 31 is formed over the entire area of the side surface portion 33 of the base body 30 in the lamp length direction. Therefore, the end surface of the concave marking portion 35 is formed in the end surface portion 34.

In the end surface portion 34, the peripheral wall portion 36 and the groove portion 38 are formed along the concave shape of the marking portion 35.

In this case, even if the concave marking portion 35 is formed in the end surface portion 34, the peripheral wall portion 36 and the groove portion 38 can be formed along the concave shape of the marking portion 35, and the side surface portion 33 and the lamp base of the base body 30 can be secured. Insulation is improved by the creeping distance between 31.

Next, a fourth embodiment is shown in FIG. Incidentally, the same reference numerals are used for the respective embodiments, and the description of the same configurations and operational effects will be omitted.

For example, in the straight tube type lamp 12 of the first embodiment, the end portion of the cap 22 is covered by the metal cover 60 from the side surface portion 33 of the cap 22 . The metal cover 60 is formed in a cylindrical shape having both ends open, and the locking portion 61 that is locked to the peripheral wall portion 36 is provided at an opening that is orthogonal to the line connecting the two lamp pins 31 and is closest to the lamp foot 31 at the opening on the one end side. Two parts that are far apart and opposite each other. The locking portion 61 functions as a positioning portion that restricts the position at which the metal cover 60 is attached to the base 22, and the fixing force of the metal cover 60 to the base 22 can be made firm. In a state in which the metal cover 60 is covered from the side surface portion 33 of the base 22 to the end portion of the straight tube cover 20, a plurality of portions of the metal cover 60 overlapping the side surface portion 33 of the base 22 and the straight tube cover 20 are pressed and deformed. Alternatively, the entire metal cover 60 is fixed to the side surface portion 33 of the base 22 and the straight tube cover 20, thereby being fixed to the straight tube type lamp 12 while being locked to the locking portion 61.

Thus, by using the metal cover 60, the fixing strength of the cap 22 and the straight tube cover 20 can be improved, and the cap 22 and the straight tube cover 20 can be prevented from being loosened or the straight tube cover 20 can be prevented from coming off the cap 22. Further, the metal member such as a screw is not exposed to the end surface portion 34 to fix the base 22 and the straight tube cover 20, so that it is not necessary to consider the insulation distance between the member such as a screw and the base 31.

Further, since the metal cover 60 is disposed on the side surface portion 33 of the base 22, it is necessary to ensure insulation between the metal cover 60 and the base 31, but the groove portion 38 is provided on the end surface portion 34 of the base 22, and the metal cover 60 or the locking portion 61 is provided. Since it is provided on the outer peripheral side of the groove portion 38, the groove portion 38 is disposed between the metal cover 60 and the lamp leg 31, and the metal cover 60 can be secured. The creeping distance is ensured by the creeping distance from the lamp leg 31. Further, since the locking portion 61 is disposed at the position farthest from the lamp leg 31, the insulating distance from the lamp leg 31 can be secured by being combined with the groove portion 38 provided in the circumferential direction.

Further, in the above-described embodiment, the locking portion 61 of the metal cover 60 is locked to the two portions of the peripheral wall portion 36 farthest from the lamp leg 31, but the fixing force of the cap 22 and the straight tube cover 20 can be maintained. The locking portion 61 may be omitted, and the insulating distance from the lamp leg 31 may be secured, or may be provided over the entire circumference of the peripheral wall portion 36.

The embodiments of the present invention have been described, but are not intended to limit the scope of the invention. The various embodiments of the invention may be embodied in various other forms, and various omissions, substitutions and changes may be made without departing from the scope of the invention. The invention or its modifications are intended to be included within the scope of the invention and the scope of the invention.

12‧‧‧ straight tube lamp

20‧‧‧ straight tube cover

22, 23‧‧‧ lamp holder

30‧‧‧ lamp body

31‧‧‧light feet

33‧‧‧ Side section

34‧‧‧End face

35‧‧‧Marking Department

36‧‧‧Walls

37‧‧‧Central area

38‧‧‧Slots

39‧‧‧Protruding

40‧‧‧ mounting holes

42‧‧‧foot

43‧‧‧ protrusion

L‧‧‧ arrow

Claims (7)

A straight tube type lamp, comprising: a light source unit; a straight tube cover having at least a portion translucent and housing the light source unit; and a lamp cap having an end disposed at the end of the straight tube cover and having insulation a main body of the base, and a pair of lamp legs protruding from the end of the base body toward the length of the lamp, forming a peripheral wall portion continuous with the side surface of the base body at the end surface of the base body and at the peripheral wall A groove portion is formed between the portion and the pair of lamp legs. The straight tube type lamp according to claim 1, wherein the groove portion is formed in an annular shape along an inner side of the peripheral wall portion. The straight tube type lamp according to claim 1, wherein the groove portion is formed in an entire inner side portion of the peripheral wall portion. The straight tube type lamp according to any one of claims 1 to 3, wherein: at the side of the base body and at least close to the side of the straight tube cover, the pair of lamp legs are disposed The marking portion of the alignment direction. The straight tube type lamp according to any one of claims 1 to 3, wherein: on a side surface of the base body, a direction indicating an arrangement direction of the pair of lamp pins is arranged along a longitudinal direction of the lamp a concave marking portion, and the groove portion is formed along an inner side of the peripheral wall portion, and a portion of the groove portion The minute portion is formed along the shape of the concave mark portion. The straight tube type lamp according to any one of claims 1 to 3, further comprising: a metal cover covering a side surface of the base body and an end portion of the straight tube cover. A lighting device, comprising: a socket; and a straight tube type lamp according to any one of claims 1 to 6 of the socket.