JP2006308885A - Projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a downsized projector in which efficiency in dissipating heat generated in the device is high. <P>SOLUTION: The projector 1 has a device main body 2. The device main body 2 includes: a light emitting source 4; a housing 23 for accommodating the light emitting source 4; a heat transfer means 16 by which heat generated from the light emitting source 4 in the internal part 23b of the housing 23 and a power source section 9 is transferred to the outside of the housing 23; and a heat-source-side heat connecting section 17 disposed outside the housing 23 so as to be exposed and connected to the heat transfer means 16. The projector 1 also has a portable case 21 in which a first heat dissipating means 3 is provided for an approximately box-like case main body that has an inner space 22a in which the device main body 2 can be accommodated. The first heat dissipating means 3 comprises: a heat-dissipation-side heat connecting section 18 connectable to the heat-source-side heat connecting section 17; a heat transfer member 20 for transferring the heat of the heat-dissipation-side heat connecting section 18; and a heat dissipating member 19 for dissipating heat transferred by the heat transfer member 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a projector having means for dissipating heat generated from the inside of a projector main body outside the main body, and more particularly to a small projector using LEDs.

In recent years, projectors are required to have large screens, high brightness, and large-scale products with power consumption of about 100 W have been developed, while miniaturized products that have improved portability while ensuring various performances. Development is required. As such small projectors are being developed, attention has been given to LED projectors using light-emitting LEDs that are space-saving and power-saving. Conventionally, fans and fins have been used as means for dissipating heat generated from the projector main body. Moreover, as a cooling device for cooling the liquid crystal panel that has generated heat, an apparatus has been proposed in which a heat pipe type panel is attached to the entire liquid crystal panel and heat is transmitted to the heat radiating plate (see, for example, Patent Document 1). ).
Japanese Patent Laid-Open No. 5-232427

  However, in LED projectors that require miniaturization, it is necessary to reduce the size of the casing that forms the outer part of the device, and as a result, the area for dissipating the heat generated inside the casing is reduced. There was a problem that would decrease. In addition, the size of the fan used for cooling is also limited. On the other hand, the LED used for the light source can increase the amount of light emission if the supply current is increased. However, if the supply current is increased too much, the amount of heat generation increases and the brightness of the LED decreases. Further, when the amount of heat generation further increases, the LED itself is damaged. For this reason, in particular, in an LED projector using an LED as a light emitting source, it is required to increase the heat radiation efficiency in order to realize a projector having a higher luminance so as not to reduce the luminance of the LED.

  The present invention has been made in view of the above-described circumstances, and provides a projector having high heat radiation efficiency of heat generated inside the apparatus in a projector that is required to be downsized.

In order to solve the above problems, the present invention proposes the following means.
According to the first aspect of the present invention, heat generated from at least one of a light emission source, a housing that houses the light emission source, the light emission source inside the housing, and a controller associated therewith is generated outside the housing. A heat transfer means to be transmitted, an apparatus main body provided exposed to the outside of the housing and connected to the heat transfer means, and heat radiation connectable to the heat source side heat connection section The projector is provided with the 1st thermal radiation means comprised with the thermal radiation member which radiates the heat transmitted from the side thermal connection part and this thermal radiation side thermal connection part.

  According to the projector of the present invention, the heat generated inside the housing of the apparatus main body can be efficiently transmitted to the outside of the housing by the heat transfer means. Furthermore, the apparatus main body can be dissipated by connecting the first heat dissipating means for dissipating the transmitted heat to the outside of the apparatus main body. In addition, the first heat radiating means, which is a device that radiates heat generated from the apparatus main body, is originally built in the apparatus main body, but by making the first heat radiating means externally connected, Miniaturization can also be achieved.

According to a second aspect of the present invention, in the projector according to the first aspect, the light source of the apparatus main body is an LED.
According to the projector of the present invention, the apparatus main body can be reduced in size by using the LED as the light emission source.

According to a third aspect of the present invention, in the projector according to the first aspect, the heat transfer means of the apparatus main body is a heat pipe.
According to the projector of the present invention, the heat generated from the light source inside the casing and the control unit associated therewith can be efficiently transmitted to the outside of the casing in a small space.

According to a fourth aspect of the present invention, in the projector according to the first aspect, the heat radiation side thermal connection portion and the heat radiation member of the first heat radiation means are formed of metal, and the heat radiation side thermal connection portion and the heat radiation member are formed. Is characterized in that it is connected so that heat can be transferred by a heat transfer member which is a heat pipe.
According to the projector of the present invention, the heat transmitted to the heat source side heat connection portion can be efficiently transmitted to the heat radiating member by the heat pipe, and can be efficiently radiated by the heat radiating member formed of metal.

The invention according to claim 5 is the projector according to claim 1, further comprising a connection cable having an external connector connectable to the apparatus main body, and the connection cable is electrically connected to the external connector with the apparatus main body. It is characterized by comprising an electric supply means comprising an electric terminal that can be provided and an electric wire connected to the electric terminal, and a first heat dissipating means provided with the heat dissipating side heat connecting portion on the external connector.
According to the projector of the present invention, the accessory component used together with the apparatus main body includes the accessory component by including the first heat dissipating means in the connection cable having the electric supply means for supplying power from the external power source. It is possible to simultaneously reduce the size of the projector and improve the heat dissipation efficiency.

According to a sixth aspect of the present invention, in the projector according to the first aspect, a substantially box-shaped case main body capable of accommodating the apparatus main body is provided with a portable case provided with the first heat radiation means. It is a feature.
According to the projector of the present invention, the entire projector apparatus including the accessory components is provided with the first main heat dissipating means in the carrying case that protects the device main body from dust and vibration, as necessary accessory components together with the apparatus main body. Downsizing and improvement in heat dissipation efficiency can be achieved at the same time.

According to a seventh aspect of the present invention, in the projector according to the sixth aspect, the heat radiating member of the first heat radiating means is formed by at least a surface of the case body being a metal.
According to the projector of the present invention, since the heat radiating member constituting the first heat radiating means also serves as the case main body of the portable case, it is possible to further reduce the size of the entire projector device and to radiate heat from the entire case main body. So it is efficient.

According to an eighth aspect of the present invention, in the projector according to the first aspect, the apparatus main body is provided with a second heat dissipating means, and the heat generated from the inside of the casing is the first heat dissipating means and the first heat dissipating means. It is characterized in that the heat is radiated by the second heat radiating means.
According to the projector according to the present invention, the heat radiation efficiency is further increased since the heat radiation is performed by the first heat radiation means connected to the outside of the apparatus main body and also by the second heat radiation means provided in the apparatus main body.

According to a ninth aspect of the present invention, in the projector according to the first aspect, the heat for detecting the presence / absence of connection between the heat source side thermal connection portion of the apparatus main body and the heat radiation side thermal connection portion of the first heat radiating means. It is characterized by comprising a connection detection means and a supply current adjustment control section for adjusting the supply current to the light emitting source according to the detection result of the thermal connection detection means.
According to the projector of the present invention, it is possible to control the light emission amount of the light source by detecting the presence or absence of connection of the first heat radiating means and adjusting the supply current to the light source by the supply current adjustment control unit. it can. For this reason, when the first heat radiation means is connected, the heat radiation amount increases, so the light emission amount of the light source is increased, and when the first heat radiation means is not connected, there is a limit to the heat radiation amount. Therefore, the light emission amount of the light source can be suppressed.

According to a tenth aspect of the present invention, in the projector according to the eighth aspect, the heat for detecting the presence / absence of connection between the heat source side heat connection portion of the apparatus main body and the heat radiation side heat connection portion of the first heat radiating means. It is characterized by comprising a connection detection means and a heat radiation control means for controlling the heat radiation amount of the heat radiation means according to the detection result of the thermal connection detection means.
According to the projector of the present invention, it is possible to control the amount of heat released by the second heat radiating means of the apparatus body by detecting whether or not the first heat radiating means is connected. For this reason, when the first heat radiating means is connected, heat is radiated by the two heat radiating means of the first heat radiating means and the second heat radiating means. Can be reduced. In addition, when the first heat radiating means is not connected, only the heat radiated by the second heat radiating means is obtained, so the amount of heat radiated by the second heat radiating means is increased to reduce the heat generated from the inside of the apparatus body. Can respond.

  According to an eleventh aspect of the present invention, there is provided a connection cable having an external connector that can be connected to an electronic device at an end, an electric terminal provided in the external connector so as to be electrically connectable to the apparatus main body, and a connection with the electric terminal. An electric supply means composed of electric wires, a heat-dissipation-side heat connection portion provided on the external connector so as to be thermally connectable to the apparatus main body, a heat transfer member for transmitting heat of the heat-dissipation-side heat connection portion, and the heat And a first heat transfer means including a heat dissipation member that dissipates the heat transmitted by the transmission member.

  According to the connection cable according to the present invention, the first heat radiation means is provided in the connection cable having the electric supply means for supplying the electric power from the external power source to the electronic device. For this reason, if the connector which has a corresponding heat-source side heat connection part and an electrical terminal is provided in an electronic device, while supplying electric power to an electronic device, the heat which generate | occur | produces in an electronic device can be radiated.

According to a twelfth aspect of the present invention, in the connection cable according to the eleventh aspect, the heat radiation side heat connection portion and the heat radiation member are formed of metal, and the heat transfer member is a heat pipe.
According to the connection cable according to the present invention, the heat transmitted to the heat source side heat connection portion of the apparatus main body is efficiently transmitted to the heat radiating member by the heat pipe, and is efficiently radiated by the heat radiating member formed of metal. be able to.

  According to a thirteenth aspect of the present invention, there is provided a portable case that includes a substantially box-shaped case body having an inner space capable of accommodating an electronic device when being carried, and protects the electronic device from external impacts, dust, and the like. A heat-dissipation-side heat connection portion that can be thermally connected to the electronic device, a heat transfer member that transmits heat of the heat-dissipation-side heat connection portion, and heat dissipated by the heat transfer member. A first heat dissipating means comprising a heat dissipating member is provided.

  According to the carrying case of the present invention, the first heat radiating means is provided in the carrying case, so that the function of protecting the electronic device from external impact, dust and the like when carried is achieved. The electronic device can be radiated by connecting the carrying case to the heat-source-side heat connecting portion of the electronic device corresponding to the heat-dissipating-side heat connecting portion of one heat dissipating means.

The invention according to claim 14 is the portable case according to claim 13, wherein the heat dissipation member of the first heat dissipation means is formed by at least a surface of the case body being metal. .
According to the portable case according to the present invention, the heat radiating member constituting the first heat radiating means also serves as the case main body, so that the portable case can be reduced in size and can be radiated by the entire case main body. is there.

  According to the present invention, since the first heat radiating means can be connected to the outside of the main body of the projector to radiate heat, heat can be efficiently dissipated and the size of the main body can be reduced. Further, the projector can be reduced in size by using the first heat radiating means connected to the outside of the apparatus main body together with the accessory components other than the apparatus main body required for the projector. In addition, since heat can be efficiently radiated, a projector having a light emitting source that is an LED, in particular, can be realized with a small size and high brightness.

(First embodiment)
1 to 5 show a first embodiment according to the present invention. FIG. 1 is a block diagram showing the basic configuration of the projector 1. 2 shows a situation diagram in which the apparatus main body 2 is accommodated in the portable case 21, and FIG. 3 shows a situation diagram when the apparatus main body 2 is used. Further, FIG. 4 is a cross-sectional view schematically illustrating a situation in which the apparatus main body 2 is used, and FIG. 5 is an enlarged perspective view of a joint portion between the apparatus main body 2 and the mobile case 21.

  First, the basic configuration of the projector 1 according to this embodiment will be described with reference to the block diagram of FIG. The projector 1 according to this embodiment includes an apparatus main body 2 and first heat radiating means 3 that can be connected to the apparatus main body 2. The apparatus main body 2 outputs, as modulated light, a light source 4, illumination optical means 5 that optically acts on illumination light emitted from the light source 4, and illumination light that has received an optical action by the illumination optical means 5. A light modulation device 6 and a projection optical system 7 that enlarges and projects the modulated light output from the light modulation device as an image are provided. The light emission source 4 includes a red LED 4a, a green LED 4b, and a blue LED 4c. The illumination emitted from the light emission source 4 is converged by the illumination optical means 5 and irradiated to the light modulation device 6. The illumination irradiated to the light modulation device 6 is converted into an image here, enlarged by the projection optical system 7, and projected onto the screen 8 as an image. In addition, the apparatus main body 2 includes a power supply unit 9, a supply current adjustment control unit 10, an operation panel 11, and a light modulation device control unit 12. The power supply unit 9 supplies power to be used in the apparatus main body 2 and may be a power supply that can be equipped with a rechargeable battery or the like, or from an external power supply (not shown) via a power cable (not shown). The power supplied may be converted. The supply current adjustment control unit 10 controls and supplies a current necessary for the light emission source 4 to emit a required amount of light. The operation panel 11 is used to turn on / off the power or manually set the light quantity of the light source 4. The light modulation device control unit 12 converts the imaging data 13 input to the apparatus main body 2 into a light amount control signal 14 or light modulation data 15. Based on the light quantity control signal 14 and the light modulation data 15, the amount of current supplied to the light source 4 is adjusted and the light modulation device 6 is controlled. In addition, the apparatus main body 2 includes a heat transfer means 16 and a heat source side heat connection portion 17. The heat transfer means 16 is substantially rod-shaped, and one end 16a is thermally connected to the light emitting source 4 and the power supply unit 9 that generate heat when the apparatus main body 2 is operated, and the other end 16b is connected to the heat source side heat connection unit 17. It is connected to the. The heat source side heat connection part 17 is exposed to the outside of the apparatus main body 2 on the connection surface 17a. More specifically, the heat transfer means 16 is a heat pipe, and the heat source side heat connection portion 17 is formed of a metal having a high thermal conductivity such as copper.

  The first heat radiating means 3 includes a heat radiating side heat connecting portion 18 having a connecting surface 18a capable of contacting the connecting surface 17a of the heat source side heat connecting portion 17 of the apparatus main body 2, a heat radiating member 19, The heat transfer member 20 is joined to the heat radiation side heat connection portion 18 and the heat radiation member 19 in a rod shape. More specifically, the heat radiation side heat connection portion 18 and the heat radiation member 19 are made of a metal having a high thermal conductivity such as copper, and the heat transfer member 20 is a heat pipe.

  Next, details of the projector 1 in this embodiment will be described. As shown in FIGS. 2 and 3, the projector 1 according to this embodiment includes a device main body 2 and a portable case 21 that accommodates the device main body 2 and protects it from vibration and dust when carried. As shown in FIGS. 4 and 5, the mobile case 21 is substantially box-shaped and includes a case main body 22 having an inner space 22 a that can accommodate the apparatus main body 2 and the first heat radiating means 3. In the portable case 21, the first heat radiating means 3 includes a heat radiating side heat connecting portion 18 projecting from the upper and lower ends 22 c of the entrance 22 b that accommodates the device main body 2 of the case main body 22, and a heat radiating side heat connecting portion 18 at one end 20 a. And a plurality of heat transfer members 20 extending on the inner surface 22d of the case body 22 and a heat dissipating member 19 forming the case body 22. The case body 22 is formed of a metal having a high thermal conductivity such as copper at least at a portion where it is joined to the outer surface 22 e and the heat transfer member 20, and functions as the heat radiating member 19. In addition, as shown in FIG. 2, the carrying case 21 is provided with a gripping portion 21 a for carrying with one hand when the apparatus main body 2 is accommodated.

  Further, as shown in FIGS. 4 and 5, the apparatus main body 2 includes a housing 23 that forms an outline of the above-described components. In addition, a fin 25 is provided as one of the second heat dissipating means 24 at one end 23 a of the housing 23. A through hole 26 communicating with the inside 23 b of the housing 23 is formed in the gap 25 a of the fin 25. As shown in FIG. 2, the one end portion 23 a that is the attachment position of the fin 25 is preferably a position that is not adjacent to the lens portion 2 a of the apparatus main body 2 and that faces the lens portion 2 a. Further, as shown in FIG. 4, the upper and lower ends 25 b of the fin 25 may come into contact with the connection surface 18 a of the heat radiation side thermal connection portion 18 when the one end portion 23 a of the housing 23 is inserted into the carrying case 21. A heat source side thermal connection 17 having a possible connection surface 17a is provided. The fin 25 is made of a metal having a high thermal conductivity such as copper.

  Next, the operation of the projector 1 of this embodiment will be described. As shown in FIG. 2, the apparatus main body 2 is accommodated in the carrying case 21 and is protected from vibration and dust when the operation of projecting an image is not performed. At this time, the apparatus main body 2 is inserted with the one end 23a provided with the fins 25 facing rearward. Next, when performing an operation of projecting an image, as shown in FIG. 3, it is inserted into the carrying case 21 with the one end 23 a provided with the fins 25 facing forward. FIG. 4 schematically shows a cross section in a state in which the apparatus main body 2 is inserted into the carrying case 21 during the operation of projecting an image. The heat source side heat connection portions 17 located above and below the fins 25 and the heat radiation side heat connection portions 18 of the mobile case 21 are in contact with the connection surfaces 17a and 18a. In this state, when the apparatus main body 2 of the projector 1 is operated, the light emission source 4 and the power supply unit 9 generate heat due to current. The generated heat is dissipated to the atmosphere from the casing 23 or the fin 25 which is the second heat dissipating means 24, and the heat pipe which is the heat transfer means 16 is connected to both the light emitting source 4 and the power supply unit 9, Heat is transmitted to the heat source side heat connection portion 17. Further, the heat is transferred from the heat source side heat connection portion 17 to the heat dissipation side heat connection portion 18 of the first heat radiating means 3 through the heat pipe as the heat transfer member 20 to the case main body 22 as the heat dissipation member 19. Here, the case main body 22 is formed of a metal having a high thermal conductivity and has a wide outer surface 22e in contact with the atmosphere, so that heat can be radiated efficiently. In the projector 1 of this embodiment, the entire apparatus of the projector 1 can be downsized by providing the first heat dissipating means 3 in the carrying case 21 required when carrying the apparatus main body 2. Further, the portable case 21 itself can also be prevented from being enlarged due to the provision of the first heat radiating means 3 because the case main body 22 also serves as the heat radiating member 19. Further, since the position where the first heat radiating means 3 is connected is the position facing the lens portion 2a of the apparatus main body 2, there is no problem during projection, and image distortion due to warm air after heat radiation does not occur.

  FIG. 6 shows a modification of this embodiment. In the projector 27 of this modification, a fan 28 is provided as the second heat radiating means 24 so as to face the inner side 25 c of the fin 25. In addition, the housing 23 is provided with an air inlet 29 that communicates the atmosphere with the inside 23 b of the housing 23. Further, an exhaust port 30 is provided at a position facing the entrance 22 b of the case body 22 of the mobile case 21. For this reason, the heat generated by the light emission source 4 and the power supply unit 9 is further operated by operating the fan 28, whereby air is supplied from the air inlet 29 to the interior 23b of the housing 23, and the supplied air is a light emission that is a heat source. Heat is dissipated by passing through the source 4 and the power supply unit 9. Further, the supplied air passes through the through holes 26 of the fins 25, and is exhausted from the exhaust port 30 to the atmosphere via the inner space 22 a of the case body 22. In addition, the air flowing from the intake port 29 to the exhaust port 30 by the fan 28 passes through the through hole 26 of the fin 25 and the inner surface 22 d of the case body 22. For this reason, there is also an effect of promoting heat dissipation of the case main body 22 which is the heat dissipation member 19 of the first heat dissipation means 3 and the fin 25 which is one of the second heat dissipation means 24.

  As described above, the configuration and operation of the first embodiment have been described. Since the mobile case 21 is also used for vibration isolation, for example, an inner surface 22d of the case main body 22 is pasted with a material having an anti-vibration effect such as a urethane material. You may do it.

(Second Embodiment)
FIG. 7 shows a cross-sectional view of a second embodiment according to the present invention. In this embodiment, members that are the same as those used in the above-described embodiment are assigned the same reference numerals, and descriptions thereof are omitted.

  The projector 31 according to this embodiment includes an apparatus main body 32 and a connection cable 33 that can be connected to the apparatus main body 32. The apparatus main body 32 is provided with an apparatus-side connector 34. The apparatus-side connector 34 includes an electrical terminal 35 that can be electrically connected and a heat source-side heat connection portion 17 that can be thermally connected to the connection surface 17a. ing. The electric terminal 35 is electrically connected to the power supply unit 9, and the heat source side heat connection unit 17 is connected to the light emitting source 4 and the power supply unit 9 which are heat sources by a heat pipe which is the heat transfer means 16. The connection cable 33 includes a cable portion 36 and an external connector 37 that is provided at the distal end portion 36 a and can be connected to the device-side connector 34 of the device body 32. In addition, the connection cable 33 connects the external connector 37, so that the power supply unit 38 that supplies power from an external power source (not shown) to the apparatus main body 2 and the heat that is generated in the apparatus main body 2 are dissipated first. The heat radiation means 3 is provided. The electric supply means 38 is provided in the external connector 37, and when the external connector 37 and the apparatus side connector 34 of the apparatus main body 32 are connected, an electric terminal 39 connected to the electric terminal 35 of the apparatus side connector 34, and an electric terminal 39 and an electric wire 40 accommodated in the cable portion 36. The first heat radiating means 3 is provided in the external connector 37 and is connected to the heat source side heat connection portion 17 of the apparatus side connector 34 when the external connector 37 and the apparatus side connector 34 of the apparatus main body 32 are connected. A heat transfer member 20 accommodated in the heat dissipation side heat connection portion 18, the cable portion 36, and transmits heat of the heat dissipation side heat connection portion 18, and a substantially plate-like heat dissipation member 19 that dissipates heat transferred by the heat transfer member 20. It consists of. The heat radiation side heat connection portion 18 and the heat radiation member 19 are formed of a metal having high thermal conductivity such as copper, and the heat transfer member 20 is a heat pipe. In addition, the apparatus main body 32 is provided with fins 25 as the second heat radiating means 24, and heat transfer means 16 that connects the fins 25 to the light emitting source 4 that is a heat source and the power supply unit 9. The cable portion 36 is covered with an electrically insulating material.

  Next, the operation of the projector 31 of this embodiment will be described. First, the external connector 37 of the connection cable 33 is connected to the device-side connector 34 of the device body 32. Next, power is supplied from an external power source (not shown) to the apparatus main body 32 by the electric supply means 38 to operate the apparatus main body 32. When the apparatus main body 32 is operated, heat generated from the light emitting source 4 and the power supply unit 9 that are heat sources is transmitted to the fins 25 that are the second heat dissipating means 24 to be dissipated, and the heat transfer means 16 heats the heat source side. It is transmitted to the thermal connection part 17. At this time, the apparatus main body 32 and the connection cable 33 are thermally connected by the heat source side heat connection part 17 of the apparatus main body 32 and the heat radiation side heat connection part 18 of the connection cable 33. For this reason, the heat transmitted to the heat source side heat connection part 17 is transmitted to the heat radiation member 19 via the heat radiation side heat connection part 18 and the heat transfer member 20 of the first heat radiation means 3 to be radiated. In the projector 31 of this embodiment, the connection cable 33 having the electric supply means 38 necessary for operating the apparatus main body 32 by an external power source (not shown) is provided with the first heat radiating means 3. The projector 31 as a whole can be downsized without increasing the number of accessory components.

  FIG. 8 shows a cross-sectional view of a first modification of this embodiment. In this modification, a fan 28 is further provided as the second heat radiating means 24. The housing 23 is provided with an intake port 29. For this reason, the heat generated in the light emitting source 4 and the power supply unit 9 is not only the heat radiation from the first heat radiating means of the connection cable 33 and the fins 25 of the second heat radiating means 24 but also the air sucked by the fan 28. Thus, heat is directly radiated from the light emitting source 4 and the power supply unit 9. Further, since the sucked air passes through the through holes 26 of the fins 25 and is exhausted to the atmosphere, the heat dissipation of the fins 25 can be further promoted.

  FIG. 9 shows a cross-sectional view of a second modification of this embodiment. In this modification, the device-side connector 34 is provided on the outer side 25 d of the fin 25 of the device main body 32. Further, the heat dissipation member 19 of the connection cable 33 is exposed to the outside of the cable portion 36. For this reason, as shown in FIG. 9, when the connection cable 33 is connected to the apparatus main body 32 and the apparatus main body 32 is operated, the air sucked into the housing 23 by the fan 28 is passed through the through holes of the fins 25. After passing through 26, it passes around the heat radiating member 19. For this reason, heat radiation by the first heat radiation means 3 is further promoted by the air that has passed through the through holes 26 of the fins 25.

  10 and 11 show a third modification of this embodiment. FIG. 10 is a block diagram showing the basic configuration of this modification, and FIG. 11 schematically shows a cross-sectional view of this modification. As shown in FIG. 10, in this modified example, a thermal connection detecting means 41 is further provided. The thermal connection detection means 41 includes connection sensors 42 and 43 and a detection unit 44 provided inside the apparatus main body 32. As shown in FIG. 9, the connection sensors 42 and 43 are provided adjacent to the heat source side thermal connection portion 17 and the heat radiation side thermal connection portion 18. The connection sensors 42 and 43 are electrically connected to each other when the device-side connector 34 of the device body 32 and the external connector 37 of the connection cable 33 are connected. As shown in FIG. 10, the detection unit 44 is electrically connected to the connection sensor 42 and the supply current adjustment control unit 10. Further, the fan 28 of the second heat radiating means 24 is also electrically connected via the heat radiating control means 45. In this modification, since the presence / absence of connection of the first heat radiation means 3 can be electrically confirmed by the presence / absence of connection of the connection sensors 42 and 43, the result is detected by the detection unit 44, and the supply current adjustment control unit 10 can be transmitted as an electrical signal. For this reason, when the first heat radiating means 3 is connected, the amount of heat radiated increases, so that the current sent from the supply current adjustment control unit 10 to the light emitting source 4 is increased according to the detection result of the detection unit 44. , The amount of light emission can be increased. On the other hand, when the first heat radiating means 3 is not connected, the amount of heat radiated is small, so the current can be reduced and the amount of light emitted from the light source 4 can be reduced. In addition, since the fan 28, which is the second heat radiating means 24, is also connected to this, when the first heat radiating means 3 is connected, heat can be radiated by the first heat radiating means 3, so that heat radiating control is possible. The operation of the fan 28 can be stopped by the means 45 or the operation rate can be reduced. On the other hand, when the first heat radiation means 3 is not connected, the fan 28 can be operated in order to increase the heat radiation amount. Thus, the light emission amount and the heat radiation amount can be controlled by the presence or absence of the connection of the first heat radiation means 3. For this reason, for example, if the first heat dissipating means is connected, the heat dissipating amount is increased, so that a bright light emission amount can be obtained, or the operation amount of the second heat dissipating means 24 is reduced to reduce power consumption and low noise. Can be planned. Furthermore, you may control both the light emission source 4 and the 2nd thermal radiation means 24. FIG. In this modification, the presence or absence of the connection of the first heat radiating means 3 can be detected and the amount of heat generated and the amount of heat radiated can be adjusted to each other, so that the entire apparatus of the projector 31 including the first heat radiating means 3 can be efficiently performed. Can operate.

  As mentioned above, although embodiment of this invention was explained in full detail with reference to drawings, the concrete structure is not restricted to this embodiment, The design change etc. of the range which does not deviate from the summary of this invention are included.

  In the present embodiment, the mobile case 21 and the connection cable 33 have been proposed as the accessory components including the first heat radiation means 3, but the accessory components according to the projector are not limited to these. For example, there are an input signal cable, an output signal cable, a lens cover, an instruction manual (made of metal), a screen, a strap, and the like. You may provide the 1st thermal radiation means 3 in these accessory components. Further, although the light source and the power supply unit are mentioned as the constituent elements that generate heat inside the apparatus main body and are transferred to the heat radiation side heat connection part by the heat transfer means, the present invention is not limited thereto. Any control unit associated with a light source that generates heat inside the apparatus main body may be used.

1 is a block diagram showing a basic configuration of a projector according to a first embodiment of the invention. It is an external view which shows the use condition of the projector of 1st Embodiment of this invention. It is an external view which shows the use condition of the projector of 1st Embodiment of this invention. 1 is a cross-sectional view schematically showing a projector according to a first embodiment of the invention. 1 is an enlarged perspective view of a projector according to a first embodiment of the invention. It is sectional drawing which represents typically the projector of the modification of 1st Embodiment of this invention. It is sectional drawing which represents typically the projector of 2nd Embodiment of this invention. It is sectional drawing which represents typically the projector of the 1st modification of the 2nd Embodiment of this invention. It is sectional drawing which represents typically the projector of the 2nd modification of the 2nd Embodiment of this invention. It is a block diagram which shows the basic composition of the projector of the 3rd modification of 2nd Embodiment of this invention. It is sectional drawing which represents typically the projector of the 3rd modification of 2nd Embodiment of this invention.

Explanation of symbols

1, 27, 31 Projector 2, 32 Device body 3 First heat radiating means 4 Light source (LED)
10 Supply current adjustment control unit 16 Heat transfer means (heat pipe)
17 heat source side heat connection part 17a connection surface 18 heat radiation side heat connection part 18a connection surface 19 heat dissipation member 20 heat transfer member (heat pipe)
DESCRIPTION OF SYMBOLS 21 Carrying case 22 Case main body 22a Inner space 23 Case 23b Inside 24 Second heat radiation means 33 Connection cable 35 Electrical terminal 38 Electric supply means 40 Electric wire 41 Thermal connection detection means 45 Heat radiation control means

Claims (14)

A light-emitting source, a housing that houses the light-emitting source, heat transfer means that transfers heat generated from at least one of the light-emitting source inside the housing and a control unit associated therewith to the outside of the housing, and An apparatus main body provided with a heat source side heat connection portion provided exposed outside the housing and connected to the heat transfer means;
A projector comprising: a heat radiating side heat connecting portion connectable to the heat source side heat connecting portion; and a first heat radiating means comprising a heat radiating member that radiates heat transferred from the heat radiating side heat connecting portion. . The projector according to claim 1, wherein
The projector according to claim 1, wherein the light source of the apparatus main body is an LED. The projector according to claim 1, wherein
The projector according to claim 1, wherein the heat transfer means of the apparatus body is a heat pipe. The projector according to claim 1, wherein
The heat radiation side heat connection part and the heat radiation member of the first heat radiation means are formed of metal, and the heat radiation side heat connection part and the heat radiation member are connected so as to be able to conduct heat by a heat transfer member which is a heat pipe. A projector characterized by that. The projector according to claim 1, wherein
Comprising a connection cable having an external connector connectable to the apparatus body;
The connection cable is an electric supply means configured by an electric terminal provided on the external connector so as to be electrically connectable to the apparatus main body, and an electric wire coupled to the electric terminal;
A projector comprising: a first heat dissipating unit provided with the heat dissipating side heat connecting portion on the external connector. The projector according to claim 1, wherein
In a substantially box-shaped case main body capable of accommodating the apparatus main body,
A projector comprising a carrying case provided with the first heat radiation means. The projector according to claim 6, wherein
The heat radiation member of the first heat radiation means is formed by forming at least a surface of the case body from metal. The projector according to claim 1, wherein
The apparatus main body is provided with a second heat radiating means, and heat generated from the inside of the casing is radiated by the first heat radiating means and the second heat radiating means. The projector according to claim 1, wherein
Thermal connection detection means for detecting the presence or absence of connection between the heat source side heat connection part of the apparatus main body and the heat dissipation side heat connection part of the first heat dissipation means;
A projector comprising: a supply current adjustment control unit that adjusts a supply current to the light emitting source according to a detection result of the thermal connection detection means. The projector according to claim 8, wherein
Thermal connection detection means for detecting the presence or absence of connection between the heat source side heat connection part of the apparatus main body and the heat dissipation side heat connection part of the first heat dissipation means;
A projector comprising: a heat radiation control means for controlling a heat radiation amount of the heat radiation means according to a detection result of the thermal connection detection means. A connection cable having an external connector that can be connected to an electronic device at the end,
An electric supply means comprising an electric terminal provided on the external connector so as to be electrically connectable to the apparatus main body, and an electric wire coupled to the electric terminal;
A heat-dissipation-side heat connecting portion provided in the external connector so as to be thermally connectable to the apparatus main body, a heat transfer member that transmits heat of the heat-dissipation-side heat connection portion, and heat dissipation that dissipates heat transmitted by the heat transfer member. A connection cable comprising: a first heat transfer means formed of a member. The connection cable according to claim 11,
The connection cable according to claim 1, wherein the heat radiation side heat connection portion and the heat radiation member are made of metal, and the heat transfer member is a heat pipe. A portable case that includes a substantially box-shaped case body having an inner space capable of accommodating an electronic device when being carried, and that protects the electronic device from external impact, dust, etc.
A heat-dissipation-side heat connecting part that can be thermally connected to the electronic device, a heat-transfer member that transmits heat from the heat-dissipation-side heat connection part, and a heat-dissipation member that dissipates heat transmitted by the heat-transfer member. And a first heat dissipating means. The carrying case according to claim 13,
The said heat radiating member of said 1st heat radiating means is formed by the at least surface of the said case main body being a metal, The portable case characterized by the above-mentioned.

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