JP2002280781A - Air supply unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply respective objects uniformly with air by ensuring an air flow having substantially uniform wind speed distribution on the upper surface of a tray. SOLUTION: A first air duct 9 is provided on one side of a tray 1 arranged with an object 7 and a second air duct 11 for supplying air entirely over the upper surface of the tray 1 is provided while being interlocked with the first air duct 9. The same volume of air is supplied from the opposite ends of the first air duct 9 by means of first and second fans 15 and 19 to produce an air flow having substantially uniform wind speed distribution on the upper surface of a tray 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air supply device suitable for supplying cooling air or heating air.

[0002]

2. Description of the Related Art Conventionally, for example, in a blower supply device used for testing the charge / discharge characteristics of a battery for a mobile phone, a high temperature state may occur depending on the use condition of the battery. In order to prevent the temperature rise from becoming too large at the time of discharging while heating by heating heated air, means for cooling by sending air serving as cooling air is employed.

[0003] The charge / discharge characteristics of a battery are tested on a tray made in a large installation area from a large amount at a time.
The batteries are arranged and set vertically and horizontally, and a fan provided above the batteries blows air that becomes cooling air during cooling and heating air heated by a heater from above when heating. ing.

In this case, since one fan cannot cover the entire area, for example, the fan is divided into four blocks, that is, front, rear, left and right, and each fan is arranged to cover the entire area.

[0005]

The conventional means for blowing air from directly above a tray has a layout structure in which a fan is arranged in a state of approaching directly above the tray due to an arrangement space in which the trays are arranged in multiple stages. Therefore, the central part of the four fans is difficult to be hit by the wind of the fan, and blind spots are easily generated. In addition, the fan has a fan structure in which blades are provided on the outer periphery of the motor, so that the fan to be a motor unit It became clear from the analysis result of the ventilation that the central part of the air blow was harder to hit than the blade area and the blind spot was generated.

In this case, the blind spot can be eliminated by moving the fan farther from the tray, but when the tray and the fan are arranged as a set in multiple stages, there is a problem that the vertical dimension becomes large and the apparatus becomes large. .

Accordingly, an object of the present invention is to provide a blower supply device in which air flows uniformly over the entire area of the tray.

[0008]

In order to achieve the above object, according to the present invention, there is provided a first air passage disposed on one side of a tray on which an object to be blown is arranged and set; A second airflow path communicating with the airflow path and air flowing over the entire area of the tray upper surface, and air having substantially the same air volume is sent from both ends of the first airflow path in opposition to each other;
It consists of a blower.

As a result, air having substantially the same air volume is blown from both ends of the first air flow path so as to face each other. The air sent in opposition is agitated and mixed in the first air passage so that the pressure distribution becomes substantially uniform and flows toward the second air passage. As a result, in the second ventilation path, the distribution of the wind velocity is substantially uniform and flows over the entire area of the tray, so that the air is substantially uniformly applied to each object to be blown.

According to a second aspect of the present invention, the first
And a guide unit for changing the flow of air from the air passage toward the second air passage to the direction of the object to be blown, and to prevent the air redirected to the object to be blown from flowing back to the first air passage. And a backflow prevention unit for preventing.

Accordingly, the air from the first blower is
It is possible to obtain a reliable flow toward the object to be blown without flowing backward to the first blowing path.

Further, according to the third aspect of the present invention, the guide portion protrudes downward from substantially the entire area of the tray from the ceiling side, and the internal space is formed as an arrangement space.

[0013] This makes it possible, for example, to easily store and arrange the control section for each of the objects to be blown placed and set on the tray, and to ensure that air flows between the objects to be blown and the objects to be blown. Will pass through.

According to a fourth aspect of the present invention, the first
Escape portions are provided at both ends of the communication portion between the air passage and the second air passage so that the inside corner portion of the communication portion escapes to the outside.

[0015] With this configuration, the area where the air velocity is reduced when the air blown out from both ends of the first airflow path flows at right angles toward the second airflow path is reduced by the relief portion, and the upper surface of the tray upper surface is reduced. Almost the same air flow is obtained over the entire area.

According to a fifth aspect of the present invention, the bottom surface of the guide portion is tapered so that the cross-sectional area of the air flow on the inlet side is large and the cross-sectional area of the air flow is gradually reduced toward the outlet side.

As a result, the cross-sectional area of the air blow is gradually narrowed on the outlet side with respect to the inlet side, so that a fast air flow is ensured. Therefore, for example, at the time of cooling, air from the inlet side is sequentially warmed toward the outlet side, but cooling can be performed without lowering cooling efficiency by increasing the wind speed.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to FIGS.

FIG. 3 shows an air supply device in which the trays 1 are arranged in multiple stages in the vertical direction.

The tray 1 is arranged in an apparatus case 5. On the upper surface of the tray 1, for example, a blown target object 7 such as a portable battery is arranged and set in a vertical and horizontal manner.

One side of the tray 1, the left side in FIG. 3 is a first air blowing path 9, and the upper side of the tray 1 is a second air blowing path 11. Are set in a layout arrangement in accordance with the flow of air flowing in the air passage 11.

The first ventilation path 9 is formed by a ventilation duct 13. Both ends are extended from the width of the tray 1 as shown in FIG.
A first fan 15 and a relief portion 17 are provided, and a fan is provided on the other side, and hereinafter, a second fan 19 and a relief portion 21 are provided.

The first and second fans 15 and 19 rotate so that substantially the same amount of air is sent from both ends into the first air passage 9.

In front of the first and second fans 15, 19,
ON by signal from heater control unit not shown
A heater 23 whose temperature is controlled to OFF is arranged.

The heater 23 includes first and second fans 15, 1
At the time of the OFF of the rotation of 9, the air serving as the cooling air is sent in from both ends of the first air passage 9, and the flows facing each other are secured.

Further, when the heater 23 is ON when the first and second fans 15 and 19 are rotating, heated air is sent from both ends of the first air passage 9 by heating the air for four turns. In this way, opposing flows are ensured.

In this case, the arrangement of the heater 23 is the first, second
It is not specified in front of the fans 15 and 19.

Further, the first and second fans 15, 19 are shown in FIG.
As shown in (1), an embodiment may be formed separately from the first air passage 9 and connected and communicated with the first air passage 9 via the extension duct 25.

In the case of this embodiment, for example, it is possible to easily cope with a fan having a large air flow with respect to the first and second fans 15 and 19 having a standard air volume.

The escape portions 17 and 21 are provided with the first and second fans 1.
It is intended to eliminate a region where the wind speed is reduced when the air sent out from the air blowers 5 and 19 flows at right angles toward the second air passage 11, and a communication portion between the first air passage 9 and the second air passage 11. The shape of the inside corner portion of the communication portion is released to the outside, so that a smooth flow toward the second air passage 11 is ensured.

The second air passage 11 is connected and connected to the first air passage 9 so as to be orthogonal to the first air passage 9, and has a shape in which air flows over the entire area of the upper surface of the tray 1.

More specifically, a mechanism section attached to the upper tray 1 and the lower tray 1 form a ceiling-side airflow path wall and a bottom-side airflow path wall, while guide walls 27 are provided on both sides. This creates a ventilation path that surrounds the top, bottom, left and right,
The flow toward the outlet 29 is ensured.

The ceiling-side ventilation path wall of the second ventilation path 11 is an embodiment using a mechanism attached to the tray 1 on the upper side, but may be a means constituted by a ventilation duct.

On the other hand, the upper tray 1 forming the ceiling-side ventilation path wall projects so as to approach the object 7 to be blown disposed on the lower tray 1, and the internal space becomes the layout space 31. Has a guide portion 33 formed at the center.

As shown in FIG.
The function of changing the flow of air from the air passage 9 toward the second air passage 11 to the direction of the object 7 to be blown;
And a function for eliminating a useless flow flowing above the airflow, and a stable and reliable airflow can be obtained by the backflow prevention unit 36 that prevents the air from flowing back to the first air passage 9.

The guide portion 33 is formed to have a size that covers the entire area of the object 7 to be blown, and has a mechanism section for connecting to an electrode from the object 7 to be blown set on the tray 1 in an internal installation space 31. (Not shown) are arranged.

The uppermost guide portion 33 is formed integrally with the top plate 35 as shown in FIG.

According to the air supply device configured as described above, the rotation of the first and second fans 15 and 19 causes the air having substantially the same air volume to be blown in from both ends of the first air passage 9. The air sent in opposition is stirred and mixed in the first air passage 9, so that air having a substantially uniform pressure distribution flows toward the second air passage 11. As a result, the air immediately after being sent out from the first and second fans 15 and 19 does not have a backflow returning to the first airflow path 9 by the backflow prevention part 36 when heading to the second airflow path 11, and guides the air. The part 33 ensures a reliable flow toward the blown target object 7. On the other hand, the region where the wind velocity decreases when the air from the first air passage 9 is bent at a right angle and flows toward the second air passage 11 is reduced by the relief portions 17 and 21 so that the second air passage is reduced. In 11, an air flow having a substantially uniform wind speed distribution over the entire area of the tray 1 can be obtained.

Here, when the temperature is 20 ° C. and the first air passage 9
An experiment was conducted by flowing 2.98 m / s of air facing each other from both ends of the tray 1. As shown in FIG. 5, the result of the analysis of the flow was approximately 1.16 m in the dashed line region D covering almost the entire region of the tray 1. / S value was obtained. Incidentally, a value of 0.93 m / s was obtained without any adverse effect outside the chain line region.

As a result, the blind spot of the blast due to the location of the tray 1 is eliminated, and the air reliably passes between the blasted objects 7 arranged and set on the tray 1 by the overhanging portion 33. Thus, a flow can be obtained in which the air is almost uniformly applied.

FIG. 6 shows a second embodiment of the guide unit 33.

That is, the bottom surface of the guide 33 is formed as a tapered surface 37 such that the cross-sectional area A on the inlet side is large and the cross-sectional area B on the air side is gradually reduced toward the outlet 29 side.

The other components are the same as those in the first embodiment, and therefore, are denoted by the same reference numerals, and detailed description is omitted.

Therefore, according to the second embodiment, the cross-sectional area B at the outlet 29 is gradually reduced with respect to the cross-sectional area A at the inlet, so that a high flow of air is ensured.

For this reason, for example, at the time of cooling, the air from the inlet side is sequentially warmed toward the outlet 29 side, but the cooling can be performed without lowering the cooling efficiency by increasing the wind speed. .

[0046]

As described above, according to the first aspect of the present invention, the air supply of substantially the same air volume is sent from both ends of the first air supply path to the second air supply path. In this case, since the air flow having a substantially uniform wind speed distribution can be obtained, there is no blind spot where the air is hard to hit depending on the location of the tray, and the air can be uniformly applied to each of the objects to be blown.

According to the second aspect of the present invention, a stable and reliable flow of air toward the object to be blown can be obtained by the guide and guide portion and the backflow prevention portion.

Further, according to the third aspect of the present invention, the control sections for the respective objects to be blown arranged and set on the tray can be arranged without difficulty.

According to the fourth aspect of the present invention, the region where the wind speed decreases when flowing at right angles to the second airflow path is reduced, so that the air at substantially the same speed over the entire region on the upper surface of the tray is reduced. Is obtained.

According to the fifth aspect of the present invention, uniform cooling can be performed over the entire area from the inlet side to the outlet side.

[Brief description of the drawings]

FIG. 1 is a schematic plan view showing a part of an air supply device according to the present invention.

FIG. 2 is a schematic explanatory perspective view showing a part of an air supply device.

FIG. 3 is a schematic explanatory view in which air supply devices are arranged in multiple stages.

FIG. 4 is a schematic plan view similar to FIG. 1 in which fans having a large blowing capacity are separately disposed at both ends of a first blowing path.

FIG. 5 is an explanatory view showing the results of an analysis experiment on the flow of air according to the present invention.

FIG. 6 is a schematic explanatory view of a part showing a second embodiment in which the bottom surface of the overhanging portion is a tapered surface inclined downward toward the outlet side.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 tray 7 target object to be blown 9 first blower path 11 second blower path 15 first fan (blower) 19 second fan (blower)

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3L044 AA04 BA08 CA04 CA14 DA01 FA03 FA10 KA04 5E322 BA03 BA04 BB06 EA02 EA11

Claims (5)

[Claims] 1. A first air passage disposed on one side of a tray on which an object to be blown is arranged and set, and a first air passage communicating with the first air passage and air flowing over the entire tray upper surface area of the tray. 2. A blower supply device, comprising: two blower paths; and a blower that blows air having substantially the same air volume from both ends of the first blower path. 2. A guide unit for changing a flow of air from a first air passage toward a second air passage to a direction of an object to be blown, and air guided to the object to be air blown by a first guide. The blower supply device according to claim 1, further comprising a backflow prevention unit that prevents backflow to the blower passage. 3. The blower supply device according to claim 2, wherein the guide portion protrudes downward over substantially the entire area of the tray from the ceiling side, and an internal space is formed in an arrangement space. . 4. The communication device according to claim 1, wherein at both ends of the communication portion between the first air passage and the second air passage, a relief portion is provided in which the inside corner portion of the communication portion escapes outward. An air supply device according to any one of the above. 5. The guiding guide portion has a bottom surface that is tapered so that the cross-sectional area of the air flow on the inlet side is large and the cross-sectional area of the air flow is gradually reduced toward the outlet side. 3. The air supply device according to any one of 3.