JP3152509U - LED straight tube lamp structure - Google Patents

Abstract

An LED straight tube lamp structure having a structure in which a tube can be bent and there is no danger of the lamp coming off the socket and falling even when attached to a luminaire, and heat dissipation from the LED can be suitably performed. And provide a lamp system. An LED straight tube lamp is formed by connecting two lamps at approximately the center. Each LED straight tube type lamp has an electrode corresponding to a socket of a fluorescent lamp, a light emitting plate provided on a printed circuit board with a plurality of LED elements that are supplied with power from the electrode, and the light emitting plate is electrically connected to another LED. It has a connection part with the area | region for connecting with the light emission plate of a straight tube | pipe type lamp | ramp and being hold | gripped by a support tool. The lamp system has an LED straight tube type lamp structure. [Selection] Figure 2

Description

  The present invention relates to an LED straight tube type lamp structure and a lamp system comprising an LED straight tube type lamp structure, a conventional fluorescent lamp socket, a lamp cover, and a support device disposed on the lamp cover. .

  In recent years, LED lamps are becoming popular in place of fluorescent lamps. LED lamps have the advantages that they consume less power and have a longer life than fluorescent lamps and can emit various colors without being limited to white.

  In addition, there is also known an apparatus in which an existing LED lamp can be used as it is so that an LED lamp can be easily attached instead of a fluorescent lamp.

  For example, Patent Document 1 discloses a fluorescent lamp type LED lighting apparatus that is set to a prescribed length according to the wattage of a fluorescent tube, and can be easily attached to an existing fluorescent lamp fixture as it is after the fluorescent tube is removed. (See Patent Document 1).

JP 2001-351402 A

  However, it has been difficult to provide an LED straight tube lamp that can replace a long tube (2367 mm tube length in the case of the 110 Watt type) straight tube type fluorescent lamp, such as a 110 watt type straight tube fluorescent lamp. (In this specification, the straight tube type fluorescent lamp is a straight tube defined in 2.3.1 “List of data sheets” of JISC7617-2 “Straight tube fluorescent lamp-Part 2: Performance specification”. Refers to a fluorescent lamp). This is because the LED lamp tube is made of plastic (resin) that is easily deformed, and thus, when an LED straight tube lamp with a long tube length is attached to a lighting fixture, the tube is not strong enough to bend. This is because the lamp may come off the socket and fall.

  FIG. 9 is a diagram for explaining a problem when an LED straight tube lamp having a long tube length is attached to a lighting fixture. The LED straight tube lamp shown in FIG. 9A has a tube body 0910 ′ having the same tube length as that of an existing fluorescent lamp having a long tube length, such as a 110 watt type straight tube fluorescent lamp, and sockets at both ends thereof. An electrode 0911 ′ is provided for insertion. Therefore, as shown in FIG. 9B, this can be directly attached to the socket 0940 of the existing fluorescent lamp fixture. However, in the LED straight tube lamp of this example, the tube body is made of resin. Therefore, when an LED straight tube lamp with such a long tube length is attached to a lighting fixture, as shown in FIG. 9C, the strength of the tube is insufficient and the tube is bent, and the lamp is detached from the socket. Risk of falling. FIG. 9D is an enlarged view of a portion surrounded by a substantially dashed circle 0950 in FIG. 9C, and shows a state in which the tube 0910 ′ is curved and the electrode 0911 ′ is coming off the socket 0940. .

  In addition, since the plastic tube has a problem that it is vulnerable to heat, the heat radiation treatment from the LED cannot be performed well with the same structure as the conventional fluorescent lamp, and the strength of the tube is further reduced. There was also.

  Therefore, the problem to be solved by the present invention is to provide an LED straight tube lamp that can replace a conventional straight tube fluorescent lamp having a long tube length. Specifically, it is intended to provide an LED straight tube lamp that does not have a risk that the tube is curved and the lamp is detached from the socket and dropped even when attached to a lighting fixture, and a lamp system having such an LED straight tube lamp. is there. Another object of the present invention is to provide an LED straight tube lamp structure having a structure capable of suitably performing a heat dissipation process from the LED, and a lamp system having such an LED straight tube lamp.

  In order to solve the above-mentioned problems, the first device is an LED straight tube lamp structure that can use a conventional fluorescent lamp socket, and is constructed by connecting two LED straight tube lamps at approximately the center. Each LED straight tube lamp includes an electrode corresponding to a socket of a conventional fluorescent lamp, a light emitting plate provided on a printed circuit board with a plurality of LED elements that are supplied with power from the electrode, and the light emitting plate. Is electrically connected to a light emitting plate of another LED straight tube lamp, and an LED straight tube lamp structure having a connection portion having a region to be held by a support.

  The second invention provides an LED straight tube lamp structure in which the light emitting plate is arranged in a plastic tube.

  In addition, the third device is based on the first or second device, and the connection portion is provided in the male screw part provided in one of the LED straight tube lamps and in the other LED straight tube lamp. An LED straight tube type lamp structure including an internal thread portion is provided.

  The fourth device provides an LED straight tube lamp structure having a rated power consumption of 110 watts based on any one of the first to third devices.

  The fifth device is an LED straight tube lamp structure according to any one of the first to fourth devices, a conventional fluorescent lamp socket, a lamp cover, and a support disposed on the lamp cover. And a lamp device having a tool.

  The sixth device is based on the fifth device, and the lamp cover is made of metal at least in the vicinity of the support, and both the connecting portion and the support are made of metal, In order to dissipate the generated heat to the lamp cover, a lamp system is provided in which the connection part and the support part are in surface contact.

  According to the present invention, it is possible to provide an LED straight tube lamp that can replace a conventional straight tube fluorescent lamp having a long tube length. Specifically, it is possible to provide an LED straight tube lamp and a lamp system having such an LED straight tube lamp that do not have a risk that the tube is curved and the lamp is detached from the socket and dropped even when attached to a lighting fixture. It becomes possible. Further, it is possible to provide an LED straight tube lamp structure having a structure capable of suitably performing a heat dissipation process from the LED, and a lamp system having such an LED straight tube lamp.

The figure which shows an example of the LED straight tube | pipe type lamp structure which concerns on this invention The figure which shows an example of the external appearance at the time of attaching the LED straight tube | pipe type lamp structure which concerns on this invention to the lighting fixture embedded in the ceiling The figure which shows an example of the structure of the connection part in the LED straight tube | pipe type lamp structure of Example 2. FIG. The figure which shows an example of the shape of the support tool in the lamp system of Example 3. The figure for demonstrating the structure of the support tool in the lamp system of Example 3. FIG. The figure for demonstrating the structure for radiating the heat which generate | occur | produced in the light-emitting plate to a lamp cover The figure which shows an example of the structure of the light emission plate, the metal part of a cylinder, and a connection part The figure for demonstrating the structure for radiating the heat which generate | occur | produced in the light-emitting plate to a lamp cover The figure for demonstrating the malfunction at the time of attaching the LED straight tube type | mold lamp with a long tube length to a lighting fixture

0110 LED straight tube lamp structure 0110a One LED straight tube lamp 0110b Another LED straight tube lamp 0111a One LED straight tube lamp electrode 0111b Another LED straight tube lamp electrode 0112a One LED straight tube Connection part 0112b of other type of lamps Connection part 0120 of other LED straight tube type lamp Support 0200 Lamp system 0210 LED straight tube type lamp structure 0220 Support 0230 Lamp cover

  Examples of the present invention will be described below. Regarding the mutual relationship between the embodiment and the claims, the first embodiment mainly relates to claims 1, 2, 4 and the like, the second embodiment mainly relates to claim 3, etc., and the third embodiment mainly relates to claims 5, 6 etc. In addition, this invention is not limited to these Examples at all, and can be implemented in various modes without departing from the gist thereof.

  <Overview>

  The LED straight tube lamp structure of the present embodiment is an LED straight tube lamp structure that can use a socket of a conventional fluorescent lamp and is configured by connecting two LED straight tube lamps at approximately the center. .

  In addition, each LED straight tube type lamp is provided with a connection portion at one end on the side to be connected to each other (that is, a central portion when two LED lamps are connected), and this is held by a support tool. Thus, when the LED straight tube type lamp structure is attached to the lamp set, it is bent so as not to come off the socket.

    (General)

  The configuration of the LED straight tube lamp structure according to the present invention will be described.

  FIG. 1 is a diagram showing an example of an LED straight tube lamp structure according to the present invention (Note that an LED straight tube lamp structure according to the present invention can be attached using an existing fluorescent lamp apparatus as it is. Therefore, if the actual tube length and the light-emitting plate are placed in a plastic tube, the tube diameter will match the existing fluorescent lamp standard. Therefore, the actual dimensional ratio is not necessarily shown (the same applies to other drawings).

      (LED straight tube lamp)

  The LED straight tube lamp structure according to the present invention is configured by connecting two LED straight tube lamps at substantially the center. First, FIG. 1A shows an LED straight tube lamp structure. One LED straight tube type lamp 0110a of two LED straight tube type lamps constituting the body is shown. As shown in this figure, the LED straight tube lamp has an electrode 0111a, a light emitting plate (not shown in this figure), and a connection part 0112a.

  Each of the LED straight tube lamps has a tube length (and approximately half that of the fluorescent lamp) (and so that each tube has the same dimensions as the standard tube length (and tube diameter) of the fluorescent lamp when the two LED straight tube lamps are connected). The tube diameter is set to the same size as the fluorescent lamp.

  There is no limitation on the standard tube length, etc. of the fluorescent lamp to be replaced. Any of the standards specified in 2.3.1 “List of data sheets” in JISC7617-2 “Straight tube fluorescent lamp-Part 2: Performance specification” It can be designed to correspond to a straight tube fluorescent lamp of any standard.

  However, as described above, the present invention lacks the strength of the tube when a long tube such as an LED straight tube lamp that replaces the 110 watt straight tube fluorescent lamp is attached to a lighting fixture. The fluorescent lamp to be substituted is preferably a 110 watt straight tube fluorescent lamp. Therefore, in this case, the tube length of the LED straight tube lamp structure is 2367 mm, which is the same as the tube length of the 110 watt straight tube fluorescent lamp, and the tube length of each LED straight tube lamp is approximately 1183 mm. The LED straight tube lamp structure here is the same as an existing fluorescent lamp, meaning that it can be attached to an existing fluorescent lamp illuminator as it is. In addition, it goes without saying that even if the entire length is the same as that of an existing fluorescent lamp, it is included in the technical scope of the present invention.

  On the other hand, from the viewpoint of providing an LED straight tube type lamp structure having a structure capable of suitably performing heat dissipation from the LED, which is another problem to be solved by the present invention, straight tube type fluorescent lamps of all standards are available. Equally suitable alternative. This is because the necessity of such heat dissipation treatment is necessary regardless of the length of the tube.

  The two LED straight tube lamps may have completely the same shape and structure. However, as will be described later, the LED straight tube lamp may have a male screw part on one side and a female screw part on the other side, so that the male screw part can be screwed into the female screw part and connected. In some cases, the structure of the two lamps will be different. If two LED straight tube lamps have the same shape and structure, the production line can be shared, and if there is one spare lamp, it can be replaced if one of them is damaged. You can save money.

        (electrode)

  An electrode for inserting into the socket is provided only at one end of the LED straight tube lamp. This electrode corresponds to a socket of a conventional fluorescent lamp. This is because, when two LED straight tube lamps are connected to form an LED lamp structure, the LED straight tube lamp structure can be mounted using a conventional fluorescent lamp as it is. Because.

        (Light emitting plate)

  The light-emitting plate is provided with a plurality of LED elements that emit light by being fed from the electrodes.

  The light emitting plate may be disposed in a plastic tube. This LED straight tube lamp structure is a substitute for a conventional straight tube fluorescent lamp, and a conventional fluorescent lamp fixture can be used as it is. Therefore, if it is preferable to change the atmosphere of the room when the conventional fluorescent lamp is replaced with the LED straight tube lamp structure, the light emitting plate is made of plastic as described above. It is desirable that the external appearance is the same as that of a fluorescent lamp. The example in this figure also shows an example in which the light emitting plate is arranged in a plastic tube.

        (Connection part)

  The connecting portion is provided only at the end opposite to the electrode of the LED straight tube lamp. The connecting portion electrically connects the light emitting plate to a light emitting plate of another LED straight tube lamp and has a region for being held by a support.

  There is no particular limitation on the structure for electrically connecting the light emitting plate to the light emitting plate of another LED straight tube lamp, but preferably, one of the LED straight tube lamp male screw portions is provided, It is conceivable that the LED straight tube type lamp is provided with a female screw part, and the two LED straight tube type lamps are connected by screwing both screw parts. Details of this structure will be described in another embodiment.

  The support is also described in detail in another embodiment, but briefly described here is that the support is disposed on the lamp cover and is located at the approximate center of the LED straight tube lamp structure. By gripping the portion, the LED straight tube lamp structure is prevented from bending and falling off the socket.

  Even when the light emitting plate is not arranged in a plastic tube and a printed circuit board having a plurality of LED elements is exposed, the LED straight tube lamp structure is curved and the socket is bent. Such a structure such as a support / connecting portion is required to prevent the device from falling off and falling. This is because, in an LED straight tube type lamp with a long tube length, such as a 110 watt type fluorescent lamp alternative LED straight tube type lamp, the printed circuit board having a plurality of LED elements is also a low-strength material such as plastic. This is because there is a possibility of bending.

      (LED straight tube type lamp structure)

  FIG. 1B shows a state in which two LED straight tube lamps are connected to form an LED straight tube lamp structure 0110. The LED straight tube type lamp 0110a appearing on the left side of the figure is the same as that shown in FIG. The LED straight tube lamp 0110b appearing on the right side has a substantially bilaterally symmetric outer shape with the LED straight tube lamp appearing on the left side.

  Therefore, in the state where the LED straight tube lamp structure is formed, the connection parts 0112a and 0112b are in contact with each other at substantially the center, and electrodes 0111a and 0111b corresponding to the sockets of the conventional fluorescent lamp are provided at both ends. It becomes a state.

  As described above, the LED straight tube lamp structure according to the present invention has dimensions corresponding to the standard tube length (and tube diameter) of the fluorescent lamp to be replaced. The lamp structure can be directly attached to an existing fluorescent lamp fixture.

  In addition, as described above, the connection portion located at the substantially center is arranged on the lamp cover. However, when the support tool grips, the LED straight tube lamp structure is bent and detached from the socket and dropped. There can be no.

  FIG. 1C shows a state in which the region of the connection portion is held by the support 0120 in addition to the LED straight tube lamp structure 0110 shown in FIG.

  The procedure for attaching the LED straight tube lamp structure of the present invention to the lamp cover using a support will be described later in another embodiment. According to this embodiment, a conventional straight tube type with a long tube length is used. It is possible to provide an LED straight tube lamp that can replace a fluorescent lamp, and has no risk of the tube being bent and falling off the socket even when attached to a lighting fixture. It becomes.

  As shown in FIG. 2, an LED straight tube lamp structure 0210 according to the present invention can be used as a part of a lighting fixture (lamp system) 0200 (details will be described later in another embodiment). Note that a power source or the like necessary for lighting the LED straight tube lamp structure may be provided in the lamp or on the luminaire side. FIG. 2 shows the lamp system with the lamp cover embedded in the ceiling.

  Although different from the present embodiment, the LED straight tube lamp structure may be configured by connecting three or more LED straight tube lamps. The specific configuration in this case can be basically realized by appropriately combining the configurations of the LED straight tube lamps described above. For example, if three LED straight tube lamps are connected to form an LED straight tube lamp structure, the two lamps at both ends are electrodes to be inserted into one socket as in the lamp of this embodiment. In addition, one lamp provided with a connecting portion on the other side and disposed in the center may have a structure similar to that of the connecting portion at both ends.

  <Effect>

  The idea of the present embodiment makes it possible to provide an LED straight tube lamp that can replace a conventional straight tube fluorescent lamp having a long tube length. Specifically, even when attached to a lighting fixture, it is possible to provide an LED straight tube type lamp in which the tubular body is curved and there is no risk of the lamp falling off the socket and falling.

  <Overview>

  The LED straight tube lamp structure according to the present embodiment is basically the same as the LED straight tube lamp structure according to the first embodiment. In particular, one of the LED straight tube lamps is provided with a connecting portion. It consists of a male screw part and a female screw part provided in another LED straight tube lamp, and is characterized in that both LED straight tube lamps can be connected by screwing both screw parts.

  <Configuration>

    (General)

  The LED straight tube lamp structure of the present embodiment is based on the LED straight tube lamp structure of the first embodiment, and the connection portion includes a male screw portion provided in any one of the LED straight tube lamps, and the like. And a female thread portion provided in the LED straight tube type lamp. The LED straight tube lamp structure in this case may be one in which the light emitting plate is exposed, or may be one in which the light emitting plate is disposed in a plastic tube.

  FIG. 3 is a diagram illustrating an example of the structure of the connection portion in the LED straight tube lamp structure according to the present embodiment. The example of this figure is an example in which the light emitting plate is disposed in a plastic cylinder.

  FIG. 3A shows a state in which the two LED straight tube lamps 0310a and 0310b are not connected yet and are separated. As shown in this figure, the connection part of either one of the LED straight tube lamps (right lamp in this figure) 0310b is a male screw part 0312b. In the example of this figure, the male thread portion has a tube diameter slightly shorter than the tube diameter of the LED straight tube lamp, and is provided at the tip of the LED straight tube lamp. An electrode 0315b is fixedly provided at the tip of the male screw portion. Further, a light emitting plate 0313b provided with a plurality of LED elements 0314b on a printed circuit board is disposed in the tube, and power is supplied from the electrodes through lead wires 0317.

  Further, the connecting portion of another LED straight tube lamp (left lamp in this figure) 0310a is a female screw portion 0312b. In the example of this figure, the internal thread portion is screwed inside the connecting portion of the LED straight tube lamp with an inner diameter corresponding to the external thread portion. Note that, as in the example of this figure, the thread of the female thread portion may be cut into the plastic tube. An electrode 0315a is also provided in the inner part of this female screw part (preferably a position slightly ahead of the innermost part of the female screw part as shown in the figure). This electrode is a spring electrode connected to a coil spring 0316, and is biased in the direction of arrow A, unlike the case where the male screw electrode is fixedly provided. A light emitting plate 0313a provided with an LED element 0314a on a printed board is also disposed in the lamp. In the example of this figure, the coil spring 0316 also serves as a lead wire, and power is supplied from the electrode to the light emitting plate through this.

  FIG.3 (b) shows the state of the process which connects two LED straight tube | pipe type lamp structures. In the example of this figure, the male threaded part 0312b of the right lamp 0310b is screwed into the female threaded part 0312a of the left lamp 0310a, and the electrode 0315b of the male threaded part has just moved to a position in contact with the electrode 0315a of the female threaded part. Indicates.

  FIG. 3 (c) shows a state in which the male screw is further screwed from the state of FIG. 3 (b) and the two connection portions 0315a and 0315b of the LED straight tube type lamp structure are completely in contact with each other. In this state, since the male screw part is further screwed into the inner part of the female screw part, the electrode at the tip of the male screw part pushes the electrode at the inner part of the female screw part further to the left. For this reason, the spring 0316 connected to the electrode of the female thread portion is compressed to the left side, and the two electrodes can be reliably kept in electrical contact by the urging force of the spring in the arrow A direction. In addition, by providing a male screw portion and a female screw portion in this way to form a screw-in structure, particularly in the case of an LED straight tube lamp structure having a long tube length, such as an LED straight tube lamp structure having a rated power consumption of 110 watts. The strength can be further increased. From the viewpoint of such strength, the length of the male screw portion in the case of an LED straight tube lamp structure with a rated power consumption of 110 watts is preferably about 10 cm or more.

  These male threaded part and female threaded part of the LED straight tube lamp structure when the male screw is completely screwed into the female thread and the two connecting parts of the LED straight tube lamp structure are completely in contact with each other. It is desirable that the threads are formed so that the electrodes on both ends are in the same direction on the left and right. This is because it is desirable that the electrodes are arranged in the correct orientation so that they can be inserted into the socket when the LED straight tube lamp structure is to be attached to an existing fluorescent lamp fixture.

  Alternatively, the electrode is not composed of two pins as shown in FIG. 1 or the like, and may be a combination of a center contact and an annular receiver. In this case, consider the orientation of the electrode as described above. No thread formation is necessary.

  Although not shown in the drawings, when the connection portion of the present embodiment is provided in an LED straight tube lamp structure of a type in which the light emitting plate is exposed, this figure is provided at one end portion of each LED straight tube lamp. The same male screw part and female screw part may be provided. To put it simply, it is only necessary to remove the plastic tube portion from each LED straight tube lamp of FIG. 4 (however, in this case, the female screw portion is provided only inside the connecting portion. ).

  <Effect>

  By conceiving the male screw and the female screw, the present embodiment can surely connect the two LED straight tube lamps, and also ensures the electrical contact between the two LED straight tube lamps when they are connected. It becomes possible to keep.

  <Overview>

  The lamp system of the present embodiment is a lamp system having the LED straight tube lamp structure described in the first or second embodiment. That is, the lamp system for a conventional fluorescent lamp can be used as it is, and the lamp system can be used simply by replacing the conventional fluorescent lamp with an LED straight tube lamp structure.

  <Configuration>

    (General)

  The lamp system of the present embodiment is a lamp having the LED straight tube lamp structure described in the first or second embodiment, a conventional fluorescent lamp socket, a lamp cover, and a support member disposed on the lamp cover. Device.

  The LED straight tube lamp structure in the lamp system of the present embodiment may also be one in which the light emitting plate is exposed, or may be one in which the light emitting plate is disposed in a plastic cylinder. Further, the connecting portion of the LED straight tube lamp structure in the lamp system of the present embodiment is a male screw portion provided in any one of the LED straight tube lamps and a female screw portion provided in the other LED straight tube lamps. It may consist of:

  In addition, the lamp system of the present embodiment can also exhibit the effect of the invention most suitably when the LED straight tube lamp structure used for this is an LED straight tube lamp structure with a rated power consumption of 110 watts.

  An example of the appearance of the lamp system of the present embodiment is as shown in FIG. As shown in the figure, the lamp system 0200 includes an LED straight tube type lamp structure 0210 and a lamp device, and the lamp device includes a conventional fluorescent lamp socket (not shown in the figure), a lamp device, and the like. A cover 0230 and a support 0220 disposed on the lamp cover are provided. The example of this figure is an example in which the light emitting plate is disposed in a plastic cylinder.

  Among these, the configuration of the LED straight tube lamp structure is as described in the first and second embodiments. As the socket and the lamp cover, the socket and the lamp cover of the lamp system of the conventional fluorescent lamp can be used as they are. Therefore, the description thereof will be omitted, and a support that is a feature of the present invention that is different from the lamp system of the conventional fluorescent lamp will be described below.

    (Support)

  The “support” is a member that is disposed on the lamp cover, and is for gripping the connection portion of the LED straight tube lamp structure. For this reason, as already described, the connection portion of the LED straight tube lamp structure is provided with a region to be held by the support.

  FIG. 4 is a diagram illustrating an example of the shape of the support in the lamp system of the present embodiment. In the example of this figure, the support 0420 has two arm portions 0421 having an arc shape matched to the shape of the lamp to hold the LED straight tube lamp and having a certain band width, and the two arm portions. And a mounting surface 0422 for mounting to the lamp cover. The attachment to the lamp cover may be performed, for example, by attaching the attachment surface to the ceiling surface of the lamp cover and fixing with a screw or the like. A small hole appearing on the mounting surface in this figure is a screw hole 0423 for this purpose.

  The support is preferably made of metal. This is because the heat generated in the light emitting plate is radiated to the lamp cover as will be described in detail later. In this case, it is essential that at least the vicinity of the support and the connecting portion of the lamp cover be made of metal.

  FIG. 5 is a diagram for explaining the configuration of the support in the lamp system of the present embodiment, and is a cross-sectional view taken along the line XX in FIG. 2 (note that the light emitting plate is not shown).

  In this figure, a state in which the support 0520 is attached to the lamp cover 0530 and the support is holding the LED straight tube type lamp structure 0510 is shown. In the example of this figure, the attachment to the lamp cover is an example in which the attachment surface of the support is attached to the ceiling surface of the lamp cover with screws 0524.

    (Configuration for dissipating heat generated in the light emitting plate to the lamp cover)

  Next, a configuration for radiating heat generated in the light emitting plate of the lamp system which is a preferred example of the present embodiment to the lamp cover will be described with reference to FIGS.

  FIG. 6 is a diagram for explaining a configuration for dissipating heat generated in the light emitting plate to the lamp cover, and among these, is a diagram showing a structure of heat conduction from the light emitting plate to the connecting portion. Among these, Fig.6 (a) is a figure which shows an example of the LED straight tube | pipe type lamp structure in the lamp system of a present Example. The LED straight tube type lamp structure 0610 shown in this figure is configured by connecting two LED straight tube type lamps 0610a and 0610b at substantially the center, similar to that shown in FIG. The straight tube lamp includes electrodes 0611a and 0611b, a light emitting plate (not shown in the drawing), and connection portions 0612a and 0612b. However, in the example of FIG. 1, the entire circumference of the light emitting plate is arranged in a plastic cylinder. However, in this example, in the example of this figure, the upper 1/4 to 1/1 / of the cylinder in which the light emitting plate is arranged. About 3 is composed of metal parts (preferably aluminum having high thermal conductivity, light weight and excellent light reflectivity) 0618a and 0618b, and the other part of the cylinder is composed of plastic parts 0619a and 0619b. ing. The metal part and the plastic part are joined to form a single cylinder as a whole. A known technique (for example, a technique for bonding using an adhesive) may be used for bonding the metal portion and the plastic portion.

  The metal portions 0618a and 0618b of the respective LED straight tube lamps are in direct contact with the connection portions 0612a and 0612b. In this embodiment, this connecting portion is also made of metal (preferably made of aluminum). Although not shown in FIG. 6A, the metal parts 0618a and 0618b are also in direct contact with the metal light-emitting plate. The light emitting plate is provided with an LED element on a printed board.

  Therefore, the heat generated in the light-emitting plate due to the heat generated from the LED element is transmitted to the metallic portion of the cylinder that is in direct contact with the light-emitting plate. Furthermore, the heat transferred to the metal part of the tube is transferred to the connecting part that is in direct contact therewith. Then, as will be described later, heat is transmitted to the lamp cover through the metal support portion in surface contact with the connection portion, and heat can be radiated from the lamp cover. FIG. 6B is a YY vertical cross-sectional view of FIG. 6A (however, the scales are not matched), and the heat generated in the light-emitting plate due to the heat generated from the LED element 0614 is shown in FIG. This shows how the light-emitting plate 0613 is transmitted in the direction of the arrow A and is transmitted to the metal portion 0618b of the cylinder. In addition, in this figure, the upper portion ¼ to ３ of the tube 0610b in which the light emitting plate is arranged as described above is a metal portion 0618b, and the other portion of the tube is a plastic portion 0619b. It is also shown that the metal part and the plastic part are joined to form a single cylinder as a whole.

  FIG. 7 is a diagram showing an example of the structure of the light emitting plate, the metallic part of the cylinder, and the connecting part. As shown in the drawing, a plurality of (eight in the example of the drawing) LED elements 0714 are attached to the lower side of the light emitting plate 0713. The light emitting plate is in direct contact with the metal portion 0718 of the cylinder. Further, the metal portion of the tube is in direct contact with the connection portion 0712. Therefore, the heat generated in the light emitting plate due to the heat generated from the LED element is transmitted to the metal part of the cylinder that is in direct contact with the light emitting plate, and is further transmitted to the connection part that is in direct contact with the tube. This is shown in this figure. The light emitting plate, the metallic part of the tube, and the connecting part may be integrally formed using the same metal material, for example.

  With the above structure, the heat transferred to the connection is then transferred to the support. That is, the support in the lamp system of the present embodiment is also made of metal (preferably made of aluminum) and is configured to be in surface contact with the connection portion. The configuration for the support to grip the connecting portion is the same as that described in the first embodiment with reference to FIG.

  FIG. 8 is a diagram for explaining a configuration for dissipating heat generated in the light emitting plate to the lamp cover. This figure is a vertical cross-sectional view of a joint surface (a surface where both connection portions 0612a and 0612b are in contact with each other in FIG. 6A) of both connection portions of the LED straight tube lamp structure. However, unlike the example of FIG. 6A, the LED straight tube type lamp structure is shown being held by a support. For convenience of explanation, illustration of the connecting portion and a portion directly surrounded by the connecting portion (for example, a plastic portion forming a male screw or a female screw) is omitted, and the metal portion of the tube on the far side, the light emitting plate, and the LED element are omitted. Is shown directly.

  As shown in this figure, the heat generated from the LED element 0814 is transmitted to the light emitting plate 0813 in the direction of arrow A to the metallic part 0818 of the tube, and further to the connection part (not shown). When this is done, the connecting portion is in surface contact with the support 0812 (not shown in this figure, but as is apparent from the case shown in FIG. (It appears at the same position as the entire circumference including the metal portion 0818 and the plastic portion 0819), and this connection portion is actually gripped by surface contact by the support). Therefore, the heat transferred to the connecting portion is transferred from the entire surface to the support. The support is attached to the lamp cover 0830 with screws 0824 or the like, and at least the vicinity of the support is made of metal. For this reason, the heat transmitted to the support is transmitted in the direction of arrow B to the lamp cover. Further, the heat transmitted to the lamp cover is radiated to the space above the lamp cover, for example, in the direction of arrow C.

  In the above description, the upper portion of the tube of the LED straight tube lamp structure is described as being made of metal. However, the structure for heat dissipation is not limited to this, for example, the LED straight tube lamp structure When the entire circumference of the tube is made of plastic, the heat from the light emitting plate is transferred to the connecting portion through the contact portion between the light emitting plate and the connecting portion, and thereafter the support tool is configured in the same manner as described above. May be transmitted to the lamp cover and radiated. In short, the technical scope of the present invention is any lamp system in which at least the vicinity of the support of the lamp cover, the connection portion and the support are made of metal, and the connection portion and the support portion are in surface contact. include.

  <Effect>

  According to the present embodiment, the lamp system for a conventional fluorescent lamp can be used as it is, and it is possible to provide a lamp system that can be used simply by replacing the conventional fluorescent lamp with an LED straight tube lamp structure. . Moreover, heat dissipation can be suitably performed by making a support etc. metal.

Claims (6)

It is an LED straight tube lamp structure that can use a conventional fluorescent lamp socket, and is formed by connecting two LED straight tube lamps in the approximate center,
Each LED straight tube lamp is
An electrode corresponding to a socket of a conventional fluorescent lamp;
A light-emitting plate provided on a printed circuit board with a plurality of LED elements that emit power by being fed from the electrodes;
The light emitting plate is electrically connected to a light emitting plate of another LED straight tube type lamp, and a connection portion having a region for being gripped by a support tool,
LED straight tube type lamp structure.   The LED straight tube type lamp structure according to claim 1, wherein the light emitting plate is disposed in a plastic tube. The connection is
A male screw part provided in any one of the LED straight tube lamps;
An internal thread provided in another LED straight tube lamp;
The LED straight tube type lamp structure according to claim 1 or 2.   The LED straight tube lamp structure according to any one of claims 1 to 3, wherein the rated power consumption is 110 watts. LED straight tube type lamp structure according to any one of claims 1 to 4,
A conventional fluorescent lamp socket;
A lamp cover;
A support disposed on the lamp cover;
A lamp system comprising: The lamp cover is made of metal at least near the support,
The connection portion and the support are both made of metal, and the connection portion and the support portion are configured to be in surface contact with each other in order to dissipate heat generated in the light emitting plate to the lamp cover. 6. The lamp system according to 5.

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