JP5413069B2 - COOLING DEVICE AND ELECTRONIC DEVICE WITH THE SAME - Google Patents

Description

  The present invention relates to a cooling device that is attached to a display device such as an electric bulletin board and performs cooling.

  For example, an electronic device includes a display device that displays information on the surface thereof, and includes a control device that drives the display device on the back side of the display device, and the outside is covered with a partition plate. And this electronic device was suspended from the ceiling (for example, patent document 1).

JP-A-7-322172

  When such an electronic device is installed outdoors, in order to dissipate heat generated from the display device and the control device, a radiator is arranged on the back cover of the electronic device, a fan is arranged inside, and an air The heat filled in the electronic device was released from the radiator to the outside. And this radiator was integrally formed with the cover made of a metallic block such as aluminum. Further, inside the cover, a metal heat conductor is provided in contact between the heat generating component in the control device and the radiator, and the generated heat is conducted to the radiator. For this reason, the electronic equipment is heavy, and a strong suspension member is required to hang it at a high place.

  Therefore, an object of the present invention is to provide a lightweight cooling device that can efficiently cool such an electronic device.

In order to achieve this object, the present invention
A main body case attached to the back side of the display device, provided with a first intake port and a first discharge port for the display device on the front surface, and provided with a second intake port and a second discharge port for external air on the back surface; A plurality of first blowers for a display device provided in the main body case, a plurality of second blowers for external air similarly provided in the main body case, and air and external air of the display device in the main body case A heat exchanger that exchanges heat with the first air passage, and a first air passage that communicates the first air inlet and the first outlet, and the first air passage are partitioned in the main body case. A second air passage that communicates the second air inlet and the second outlet, and the first air fan and the second air fan are arranged in a line on the same side with respect to the heat exchanger , first blower, the second blower one at compartment, a cooling device arranged alternately Ri, thereby, is to achieve the intended purpose.

As described above, the present invention is attached to the back side of the display device, provided with the first intake port and the first discharge port for the display device on the front surface, and the second intake port and the second discharge port for external air on the back surface. A plurality of first blowers for display devices provided in the main body case, a plurality of second blowers for external air similarly provided in the main body case, and in the main body case A heat exchanger for exchanging heat between the air of the display device and external air, and in the main body case, a first air passage that communicates the first air inlet and the first outlet, A second air passage that is partitioned from the first air passage and communicates the second air inlet and the second outlet is provided. The first air fan and the second air fan are connected to the heat exchanger. the same side arranged in a row, the first air blower, and partitioned one said second fan, Since arranged mutually, the cooling device becomes a lightweight thin, and it is possible to perform efficient cooling.

The figure which shows the example of a display apparatus installation of one Embodiment of this invention The rear perspective view of the display device of one embodiment of the present invention. The rear view when the back cover of the display apparatus of one Embodiment of this invention is removed 1 is a side sectional view of a cooling device according to an embodiment of the present invention. The figure which shows the structure of the cooling device of one Embodiment of this invention. The figure which shows arrangement | positioning of the air blower of the cooling device of one Embodiment of this invention. The figure which shows the air blower unit of the cooling device of one Embodiment of this invention. (A) Rear view, (b) Drain hole detail view when the display device of one embodiment of the present invention is placed horizontally (A) Rear view, (b) Detailed view of drain hole when the display device of one embodiment of the present invention is placed vertically.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1, a display device 1 typified by an electronic device is suspended, for example, on the outdoor side of a store. And on the surface, for example, the advertisement information of the store is notified to the customer in real time.

  As shown in FIG. 2, the display device 1 is provided with a back cover 3 provided with a number of holes on the back surface thereof. FIG. 3 is a rear view of the display device 1 when the back cover 3 is removed. As shown in FIG. 3, the heat exchanger unit 4 and the blower unit 5 are provided on the back surface of the display device 1 so as to be in contact with each other.

  As shown in FIGS. 4 and 5, the display device 1 is provided with a display panel 2 using an electronic display device having a plasma display panel as an example on the surface, and the display panel 2 includes the display panel 2. A control device 8 for controlling the display of information as video is stored. A cover 9 that covers the control device 8 is provided. Further, the rear surface of the cover 9 is opened on the rear side of the control device 8, and a partition plate 10 having a rectangular shape is provided in the opening. Ventilation holes (first intake port 13 and first discharge port 14) are provided at two locations so as to penetrate through the partition plate 10. A heat exchanger unit 4 in which a heat exchanger 12 is housed and a blower unit 5 in which a blower 11 is housed are provided on the rear side of the partition plate 10. The heat exchanger unit 4 and the blower unit 5 constitute a main body case of the cooling device 50.

  In addition, as shown in FIG. 5, the heat exchanger unit 4 is comprised by the outer frame 17 and the partition plate 10 which provided the heat exchanger 12 inside.

  The heat exchanger 12 has a configuration in which a plurality of plates made of synthetic resin having a substantially hexagonal shape with two long sides facing each other are polymerized in a state of being separated from each other by a predetermined distance. A plurality of rectifying walls (not shown) are provided on the surface of the plate body to partition the surface into lanes. The rectifying wall is extended from one of the short sides of the plate body serving as the inflow port toward the opposite side. By such a plate (rectifying wall), a plurality of substantially S-shaped air lanes are formed on the plate.

  In such a heat exchanger 12, as shown in FIG. 4, one of the short sides on the bottom side is the outside air inlet 12a, and the opposite side is the outside air outlet 12b. On the other hand, one of the short sides on the top side is the device side inlet 12c, and the opposite side is the device side outlet 12d.

  As shown in FIG. 4A, the blower unit 5 is provided with a second intake port 6 on the opposite side to the display device 1, and the heat exchanger unit 4 has a second discharge port on the opposite side to the display device 1. An outlet 7 is provided. The second air passage 22 flows in from the second air inlet 6 and enters the heat exchanger 12 through the outside air inlet 12a, as indicated by the white arrow, and enters the heat exchanger 12 through the outside air inlet 12b and the second outlet 7. It becomes the route to go to.

  4B, the blower unit 5 is provided with a first discharge port 14 on the display device 1 side, and the heat exchanger unit 4 has a first intake port 13 on the display device 1 side. Is provided. As indicated by the hatched arrows, the first air passage 21 flows in from the first air inlet 13 and enters the heat exchanger 12 through the apparatus side inlet 12c, and enters the apparatus side outlet 12d and the first outlet. The route to 14 will be.

  According to such a heat exchanger 12, heat is exchanged between cold outside air passing through the second air passage 22 and warm air on the device side passing through the first air passage 21, thereby cooling the air on the device side. Will do.

  Next, it will be described in more detail with reference to FIGS. The blower unit 5 has a plurality of second blowers 11a and a plurality of first blowers 11b arranged alternately. Each of the second blower 11a and the first blower 11b is in a partitioned state. The second blower 11 a sucks outside air from the second intake port 6 and blows it to the outside air inlet 12 a of the heat exchanger 12. The first blower 11b sucks the air on the apparatus side cooled by the heat exchanger 12 and supplies it from the first discharge port 14 to the apparatus side.

  The blower unit 5 uses an axial flow type second blower 11a and a first blower 11b. The 2nd air blower 11a is arrange | positioned on the 2nd inlet 6 side. On the other hand, the first blower 11b is disposed close to the first discharge port 14. The openings on the heat exchanger unit 4 side are provided to be staggered, and the display device 1 side is an opening for the second air passage 22, and the opposite side to the display device 1 is an opening for the first air passage 21.

According to such a cooling device 50, since the plurality of blowers (second blower 11a and first blower 11b) are provided, the entire device can be made thin. Further, the second blower 11a and the first blower 11b are provided on the same side with respect to the heat exchanger 12 so as to be in a horizontal row as shown in FIGS. 5 and 7, or in a horizontal row as shown in FIG. Therefore, the entire apparatus can be reduced in size.

  Moreover, as shown in FIG. 7, the panel (unit cover 19) of the back side of the air blower unit 5 can be removed now. Therefore, the second blower 11a and the first blower 11b are configured to be easily maintained.

  Further, a drain hole 20 serving as a drain hole is provided in the unit cover 19 in a section in which the second blower 11a is accommodated. The drain hole 20 is provided at a corner of the surface away from the heat exchanger 12. With this configuration, both when the display device 1 is placed horizontally (FIG. 8) and when the display device 1 is placed vertically (FIG. 9), the drain hole 20 is below the section in which the second blower 11a is housed. Will be located.

  As described above, the present invention is attached to the back side of the display device, provided with the first intake port and the first discharge port for the display device on the front surface, and the second intake port and the second discharge port for external air on the back surface. A plurality of first blowers for display devices provided in the main body case, a plurality of second blowers for external air similarly provided in the main body case, and in the main body case A heat exchanger for exchanging heat between the air of the display device and external air, and in the main body case, a first air passage that communicates the first air inlet and the first outlet, A second air passage that is partitioned from the first air passage and communicates the second air inlet and the second outlet is provided. The first air fan and the second air fan are connected to the heat exchanger. Arranged almost in line on the same side, this cooling device is thin and lightweight, and It is possible to perform efficient cooling. Therefore, for example, it is extremely useful as a cooling facility for a display device using a plasma display.

DESCRIPTION OF SYMBOLS 1 Display apparatus 2 Display panel 3 Back cover 4 Heat exchanger unit 5 Blower unit 6 2nd inlet port 7 2nd discharge port 8 Control apparatus 9 Cover 10 Partition plate 11 Blower 11a 2nd blower 11b 1st blower 12 Heat exchanger 12a Outside air side inlet 12b Outside air side outlet 12c Device side inlet 12d Device side outlet 13 First air inlet 14 First outlet 19 Unit cover 20 Drain hole 21 First air passage 22 Second air passage 50 Cooling device

Claims (6)

A main body case attached to the back side of the display device, provided with a first intake port and a first discharge port for the display device on the front surface, and provided with a second intake port and a second discharge port for external air on the back surface; A plurality of first blowers for a display device provided in the main body case, a plurality of second blowers for external air similarly provided in the main body case, and air and external air of the display device in the main body case A heat exchanger that exchanges heat with the first air passage, and a first air passage that communicates the first air inlet and the first outlet, and the first air passage are partitioned in the main body case. A second air passage that communicates the second air inlet and the second outlet, and the first air fan and the second air fan are arranged in a line on the same side with respect to the heat exchanger, first blower, the second blower divides one by one cooling device arranged alternately. The first blower and the second blower are axial flow type blowers, the first blower is provided from the front side of the main body case, and the second blower is provided from the rear side of the main case. The cooling device according to claim 1 . At least one drainage hole is provided at a corner at the same position with respect to each of the second blowers in the compartment containing the second blower, and the drainage hole of the main body case is provided with the second blower. The cooling device according to claim 1 or 2 installed so that it may become under a section. The main body case includes a heat exchange portion that matches said heat exchanger, said first fan, the cooling device according to any one constituted claims 1-3 in the second blower matches the blower unit. The cooling device according to claim 4, wherein a rear side panel of the blower section is removable. The cooling device according to claim 5 , wherein the drain hole is provided in a rear side panel of the blower.

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