JP2011163582A - Liquid cooler - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance efficiency of heat transfer of a circulating liquid flowing in a cooling tank to make a temperature difference between an inlet and outlet of the circulating liquid larger and improve performance of a liquid cooler. <P>SOLUTION: In the liquid cooler 1, the circulating liquid: flows in from the circulating liquid inlet A8 provided in the cooling tank A6; flows to a baffle plate A10 of an inner wall of the cooling tank A6; vertically comes into contact with a cooling pipe 13 of a heat exchanger 7 from a circulating liquid convection hole A; flows in parallel with a fin 14 mounted on the cooling pipe 13 of the heat exchanger 7; and flows-out from the circulating liquid outlet A9 provided in the cooling tank A6, while enhancing the efficiency of heat transfer. Accordingly, the performance of the liquid cooler is improved by a temperature difference between the inlet A8 and outlet A9 that is caused by improving the contact between the circulating liquid and the cooling pipe 13 to enhance the efficiency of heat transfer. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid cooler.

  An apparatus including a liquid cooler is known as a conventional apparatus using this type of heat exchanger (see, for example, Patent Document 1).

FIG. 10 shows a cooling tank of a conventional liquid cooler described in Patent Document 1.
As shown in FIG. 10, the cooling tank 31 is a cylindrical body and includes a circulating liquid inlet 32, a circulating liquid outlet 33, a finned cooling pipe 34, and a baffle plate 35, and includes a refrigerant inlet 36 and a refrigerant outlet 37 of the cooling pipe 34. .

Japanese Patent No. 3289501

  However, in the conventional technique, a plurality of baffle plates are arranged on the entire surface of the cooling tank so that the circulating fluid flows in a direction perpendicular to the cooling pipe of the heat exchanger, and several baffle plates are fixed to the cooling tank by welding. Therefore, the number of baffle plates is large, and there are problems such as a fixed time for welding and a long time for attaching the baffle plates.

  Also, with the conventional technology, when circulating fluid is circulated through the cooling pipe and fins of the heat exchanger in the cooling tank, there is temperature unevenness, there is no temperature difference between the circulating fluid inlet and the circulating fluid outlet, and there is little heat transfer effect For this reason, there has been a problem that the capacity of the liquid cooler cannot be increased by increasing the temperature difference between the circulating fluid inlet and the circulating fluid outlet.

  The present invention solves the above-mentioned conventional problems, and installs the cooling tank inner wall of the liquid cooler and the baffle plate at a location surrounded by the left and right end plates of the heat exchanger, and on the downstream side of the circulating fluid, It is an object of the present invention to provide a liquid cooler in which fins and cooling pipes of the heat exchanger are arranged so that a circulating liquid flows in a vertical direction through the cooling pipe of the heat exchanger.

  In order to solve the conventional problem, the liquid cooler of the present invention includes a cooling tank A, a circulating fluid inlet A, a circulating fluid outlet A, a heat exchanger, and a baffle plate A, After passing through the circulating fluid inlet A, the baffle plate A disposed at a location surrounded by the inner wall of the cooling tank A and the end plates A on the left and right of the heat exchanger, and on the downstream side of the circulating fluid, It is the specification which constituted the path | route which passes through the structure part of the fin and cooling tube of a heat exchanger, and returns to the said circulating fluid exit A.

  Moreover, the cooling tank A of the liquid cooler of the present invention has a specification in which the cooling liquid inlet A and the cooling liquid outlet A are configured at positions facing the cooling tank A, respectively.

  Moreover, the cooling tank B of the liquid cooler of the present invention has the circulating fluid inlet B and the circulating fluid outlet B arranged in the same direction, and the width of the baffle plate B is set to the left and right ends of the heat exchanger. The specification is smaller than the width of the plate A.

  In the cooling tank C of the liquid cooler of the present invention, the circulating fluid convection holes A are arranged in the end plates B on the left and right of the heat exchanger, and the circulating fluid inlet C and the circulating fluid outlet C are connected to each other. It is the specification comprised in the position which the said cooling tank C opposes.

  In the cooling tank D of the liquid cooler of the present invention, the circulating fluid convection hole B is disposed in the left and right end plates B of the heat exchanger, and the circulating fluid inlet D and the circulating fluid outlet D are in the same direction. It is the arranged specification.

  The liquid cooler of the present invention can reduce the work man-hours by reducing the number of man-hours for mounting the baffle plate inside the cooling tank, can be arranged relatively easily, and flows to the cooling tank of the liquid cooler The circulating fluid can be made to flow perpendicularly to the cooling pipe of the heat exchanger by the baffle plate, and the circulating fluid can be made to flow in parallel with the fins.

  In addition, the contact area between the circulating fluid, the cooling pipe and the fins is increased to increase the thermal conductivity. As a result, the temperature difference between the circulating fluid inlet and the circulating outlet is increased to promote the heat transfer effect. Further, the temperature unevenness of the cooling pipe is reduced, and the heat transfer capability of the liquid cooler can be increased.

Overview of the liquid cooler of the present invention Perspective view of cooling tank A of the liquid cooler Cross section of cooling tank A of the same liquid cooler Schematic diagram of the baffle plate A Cross section of cooling tank B of the liquid cooler Schematic diagram of the baffle plate B Longitudinal sectional view of the heat exchanger (cross section AA in FIG. 8) Cross section of cooling tank C of the liquid cooler Cross section of cooling tank D of the same liquid cooler Plan view of a conventional liquid cooler

  The liquid cooler of the first invention comprises a cooling tank A, a circulating fluid inlet A, a circulating fluid outlet A, a heat exchanger, and a baffle plate A, and the circulating fluid passes through the circulating fluid inlet A, The baffle plate A arranged at the inner wall in the cooling tank A and the end plates A on the left and right of the heat exchanger, and fins and cooling pipes of the heat exchanger on the downstream side of the circulating fluid The specification is such that a path that passes through the constituent parts of the above and returns to the circulating fluid outlet A is configured.

  With this configuration, the circulating fluid from the circulating fluid inlet A is parallel to the fins of the heat exchanger, and the circulating fluid is allowed to flow perpendicularly to the cooling tube of the heat exchanger. The heat transfer effect can be improved to improve the temperature transfer of the cooling pipe, the temperature unevenness of the cooling pipe can be reduced, and the capacity of the liquid cooler can be increased by increasing the temperature difference between the circulating fluid inlet A and the circulating fluid outlet A. is there.

  The second invention is a specification in which, in particular, the cooling tank A of the liquid cooler of the first invention is configured such that the cooling liquid inlet A and the cooling liquid outlet A are arranged at positions facing the cooling tank A, respectively. .

  By adopting such a configuration, the circulating fluid can flow through the fins from the baffle plate A over the entire surface of the fins at a substantially equal flow rate to exchange heat.

In the third invention, in particular, the cooling tank B of the liquid cooler of the first invention includes the circulating liquid inlet B,
The circulating fluid outlet B is disposed in the same direction, and the width of the baffle plate B is smaller than the width of the left and right end plates A of the heat exchanger.

  With this configuration, the circulating fluid can be convected inside the cooling tank B while making a large U-turn to exchange heat, and the circulating fluid can flow uniformly through the entire heat exchanger and exchange heat. Further, the heat transfer effect is promoted, the temperature difference between the circulating fluid inlet B and the circulating fluid outlet B can be increased, and the capacity of the liquid cooler can be increased.

  According to a fourth aspect of the invention, the cooling tank C of the liquid cooler of the first aspect of the present invention has the circulating liquid convection holes B arranged in the end plates B on the left and right sides of the heat exchanger, and is opposed to the cooling tank C. It is a specification configured at the position to be.

  By adopting such a configuration, since the liquid is circulated to the return bend positioned outside both end faces of the end plate B of the heat exchanger inside the cooling tank C, the heat transfer effect of the return bend can be promoted and heat exchange can be improved. .

  In the fifth aspect of the invention, in particular, the cooling tank D of the liquid cooler according to the third aspect of the present invention has circulating fluid convection holes in the left and right end plates B of the heat exchanger and the circulating fluid outlet D in the same direction. This is the specification.

  By adopting such a configuration, it is possible to convect the circulating fluid inside the cooling tank D while making a large U-turn and to exchange heat, and since the fluid is circulated to the return bend, the heat transfer effect of the return bend is promoted. Heat exchange of the heat exchanger can be improved.

  In addition, the circulating fluid can flow uniformly throughout the heat exchanger to exchange heat, promote the heat transfer effect, increase the temperature difference between the circulating fluid inlet D and the circulating fluid outlet D, and increase the capacity of the liquid cooler. It can be done.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a schematic diagram of a liquid cooler according to Embodiment 1 of the present invention. FIG. 2 is a perspective view of the cooling tank A of the liquid cooler. FIG. 3 is a cross-sectional view of the cooling tank A of the liquid cooler. FIG. 4 is a schematic view of the baffle plate A.

  As shown in FIGS. 1, 2, 3, and 4, in the liquid cooler 1, the refrigerant discharged from the compressor 2 is liquefied by the condenser 3, and the condenser 3 is cooled by the fan motor 4 to promote liquefaction. The pressure is reduced by the pressure reducer 5 and flows to the heat exchanger 7 inside the cooling tank 6A. The refrigerant heat-exchanged by the heat exchanger 7 returns to the compressor 2 again.

  The cooling tank A6 of the liquid cooler 1 includes a circulating liquid inlet A8, a circulating liquid outlet A9, a heat exchanger 7, and a baffle plate A10, and the circulating liquid (arrow shown) is connected to the circulating liquid inlet. After passing through A8, it is arranged at a location surrounded by the inner wall of the cooling tank A6 and the end plate A11 on the right side of the heat exchanger 7. The baffle plate A10 is provided with a plurality of circulating fluid convection holes A12 through which the circulating fluid (shown arrow) flows, and on the downstream side of the circulating fluid (shown arrow), the cooling pipe 13 and the fin 14 of the heat exchanger 7 are provided. It is the specification which makes the path | route which passes a structure part and returns to the said circulating fluid exit A9.

The plurality of circulating fluid convection holes A12 in the baffle plate A10 may be the same hole, and the baffle plate A10 may be positioned between the heat exchanger 7 fin 14 in the cooling tank 6A and attached. Make it possible.

  Further, the inner wall of the cooling tank A6 and the baffle plate A10 may be in contact with the end plate A11 of the heat exchanger 7 or may be open even if the clearance is open.

  Next, the operation and action of the liquid cooler having the above configuration will be described below.

  The circulating fluid (arrow shown) of the liquid cooler 1 flows to a tank (not shown) by a pump (not shown) provided outside the liquid cooler 1, and the circulating fluid (not shown) is heated by a heater (not shown). The circulating fluid (arrow shown) flows from the circulating fluid inlet A8 attached to the cooling tank A6 of the liquid cooler 1 connected with a pipe (not shown).

  On the other hand, water in a tank (not shown) provided outside the liquid cooler is always sent to the tank by a pump (not shown) and at a constant temperature by a heater (not shown) by a pump (not shown). After being kept in the air, it is discharged to the outside air.

  The circulating fluid (shown by arrows) extends from a plurality of circulating fluid convection holes A12 of the baffle plate A10 disposed at a location surrounded by the inner wall of the cooling tank A6 and the left and right end plates A11 of the heat exchanger 7. It was made to flow. As a result, the circulating fluid (arrow shown in the figure) hits the cooling pipe 13 of the heat exchanger 7 perpendicularly, and the circulating liquid flows in parallel with the fins 14 attached to the cooling pipe 13 of the heat exchanger 7 to promote heat exchange. However, the circulating fluid (arrow shown) flows out from the circulating fluid outlet 9 attached to the cooling tank A6.

  Therefore, the contact between the circulating fluid (arrow shown in the figure), the cooling pipe 13 and the fin 14 can be improved to promote the heat transfer effect, and the temperature unevenness between the cooling pipe 13 and the fin 14 can be reduced, and the circulating fluid inlet A8 and the circulating fluid outlet. The heat exchange capability of the liquid cooler 1 can be increased by increasing the temperature difference of A9.

(Embodiment 2)
FIG. 2 is a perspective view of cooling tank A according to Embodiment 2 of the present invention. FIG. 3 is a cross-sectional view of the cooling tank A of the liquid cooler.

  As shown in FIGS. 2 and 3, the cooling tank A6 has a specification in which the circulating fluid inlet A8 and the circulating fluid outlet A9 are respectively arranged at positions facing the cooling tank A6.

  Next, the operation and action of the liquid cooler having the above configuration will be described below.

  The circulating fluid (arrow shown) passes through the baffle plate A10 to the fin 14 and the circulating fluid hits the cooling pipe 13 perpendicularly to exchange heat, and the circulating fluid (arrow shown) flows over the entire surface of the fin 14 and the circulating fluid outlet A9. More outflow.

  Accordingly, by configuring the circulating fluid inlet A8 and the circulating fluid outlet A9 at positions opposite to the tank A6, the circulating fluid (shown by arrows) can flow and exchange heat at an equivalent flow rate. is there.

(Embodiment 3)
FIG. 5 is a cross-sectional view of cooling tank B according to Embodiment 3 of the present invention. FIG. 6 is a schematic diagram of the baffle plate B.

As shown in FIGS. 5 and 6, the cooling tank B15 has the circulating fluid inlet B16 and the circulating fluid outlet B17 arranged in the same direction, and the baffle plate B18 has the width of the heat exchanger 7 as shown in FIG. The specification is configured to be smaller than the width of the left and right end plates A11.

  Next, the operation and action of the liquid cooler having the above configuration will be described below.

  The circulating fluid inlet B16, the circulating fluid outlet B17, and the baffle plate B18 may be attached in reverse.

  Further, the circulating fluid convection hole A12 of the baffle plate B18 can be a hole having the same size.

  Next, the operation and action of the liquid cooler will be described below.

  The circulating fluid (shown by an arrow) enters from the circulating fluid inlet B16 of the cooling tank B15 and hits a baffle plate B18 provided in the cooling tank B15. Further, the circulating fluid (arrow shown in the figure) flows and spreads to the circulating fluid convection holes A12 on the left and right, hits the cooling pipe 13 of the heat exchanger 7 perpendicularly, and is parallel to the fins 14 attached to the cooling pipe 13 of the heat exchanger 7. (Arrow shown) flows.

  On the other hand, the return circulating liquid (arrow shown in the figure) flows in parallel with the fins 14 attached to the cooling pipes 13 of the heat exchanger 7 and hits the cooling pipes 13 of the fins 14 of the heat exchanger 7 in the same manner as described above. While promoting the replacement, the circulating fluid (arrow shown in the figure) goes out from the circulating fluid outlet B17. Therefore, it is possible to convection the circulating fluid (shown arrow) on the inner wall of the cooling tank B15 while making a large U-turn, and the contact between the circulating fluid (shown arrow) and the cooling pipe 13 is improved, and a heat transfer effect is achieved. The capability of the liquid cooler 1 can be enhanced by enlarging the temperature difference between the circulating fluid inlet B16 and the circulating fluid outlet B17.

(Embodiment 4)
FIG. 7 is a longitudinal sectional view of the heat exchanger 7 as viewed from the direction of arrows AA in FIG. 8 according to the fourth embodiment of the present invention. FIG. 8 is a cross-sectional view of the same cooling tank C according to Embodiment 4 of the present invention.

  As shown in FIGS. 7 and 8, the end plate B19 of the heat exchanger 7 is provided with a circulating fluid convection hole B20 communicating with the front and back.

  Next, the operation and action of the end plate B19 of the heat exchanger 7 will be described below.

  After the circulating fluid (shown arrow) passes through the circulating fluid inlet C22 attached to the cooling tank C21, the circulating fluid is arranged at a location surrounded by the inner wall of the cooling tank C21 and the left and right end plates B19 of the heat exchanger 7. The baffle plate A10 expands from a plurality of circulating fluid convection holes A12 through which the circulating fluid (shown arrow) flows and flows to the circulating fluid outlet B23 while contacting the cooling pipe 13 and the fins 14.

  On the other hand, the circulating fluid (arrows in the figure) rotates from the circulating fluid convection holes B20 before and after the end plate B19 of the heat exchanger 7 to the left and right return bends 24 outside the both end faces of the heat exchanger 7. This improves the heat transfer effect, improves the heat exchange again from the circulation convection hole B20, and the circulating fluid (arrow shown in the figure) comes out from the circulating fluid outlet B20.

  In addition, also in end plate B19 attached to the right side of the heat exchanger 7, a circulating liquid (arrow of illustration) is similarly discharged from the circulation convection hole B20.

  Note that the inner wall of the cooling tank C21 and the baffle plate A10 may be in contact with the end plate B19 of the heat exchanger 7, or the clearance may be open.

  With this configuration, since the liquid is circulated to the return bends 24 located outside the both end faces of the end plate B19 of the heat exchanger 7 inside the cooling tank C21, the heat transfer effect of the return bends 24 is promoted and heat exchange is performed. Can be improved.

(Embodiment 5)
FIG. 9 is a cross-sectional view of the same cooling tank D according to Embodiment 5 of the present invention.

  The cooling tank D25 has a configuration in which the circulating fluid inlet D26 and the circulating fluid outlet D27 are arranged in the same direction, and the width of the baffle plate B18 is smaller than the width of the left and right end plates B19 of the heat exchanger 7. This is the specification.

  Next, the operation and action of the liquid cooler having the above configuration will be described below.

  Circulating fluid (arrow shown in the figure) enters from the circulating fluid inlet D26 of the cooling tank D25 and hits the baffle plate B18 provided in the cooling tank D25. Further, the circulating fluid (arrow shown in the figure) flows and spreads to the circulating fluid convection holes A12 on the left and right, hits the cooling pipe 13 of the heat exchanger 7 perpendicularly, and is parallel to the fins 14 attached to the cooling pipe 13 of the heat exchanger 7. (Shown arrow) flows and hits the cooling pipe 13 of the heat exchanger 7 perpendicularly.

  On the other hand, the return circulating liquid (arrow shown in the drawing) flows in parallel with the fins 14 attached to the cooling pipe 13 of the heat exchanger 7 and hits the cooling pipe 13 of the heat exchanger 7 perpendicularly to promote heat exchange. The circulating fluid (arrow shown in the figure) goes out from the circulating fluid outlet D27.

  On the other hand, the circulating fluid (arrows in the figure) rotates from the circulating fluid convection hole B20 before and after the end plate B19 of the heat exchanger 7 to the return bend 24 before and after the heat exchanger 7 to improve the contact of the return bend 24. The heat transfer effect is promoted and joined with the return circulating fluid (shown arrow) to improve the heat exchange of the return bend 24 right from the circulation convection hole B20, and the circulating fluid (shown arrow) comes out from the circulating fluid outlet D27. Go.

  The circulating fluid inlet D26, the circulating fluid outlet D27, and the baffle plate B18 may be mounted in reverse positions.

  With this configuration, it is possible to convection the circulating fluid (arrow shown in the figure) inside the cooling tank while making a large U-turn to exchange heat and to circulate the fluid up to the return bend 24. The heat transfer effect is promoted and heat exchange can be improved.

  In addition, the circulating fluid (arrow shown in the figure) can flow uniformly throughout the heat exchanger to exchange heat, promote the heat transfer effect, increase the temperature difference between the circulating fluid inlet D26 and the circulating fluid outlet D27, and cool the liquid. The capacity of the vessel 1 can be increased.

  As described above, in the cooling tank of the liquid cooler according to the present invention, the baffle plate is attached to the downstream side of the circulating fluid of the heat exchanger, so that the circulating fluid is easily parallel to the fins of the heat exchanger inside the cooling tank. It is possible to exchange heat with the circulating fluid perpendicular to the cooling pipe of the heat exchanger.

DESCRIPTION OF SYMBOLS 1 Liquid cooler 2 Compressor 3 Condenser 4 Fan motor 5 Depressurizer 6 Cooling tank 7 Heat exchanger 8 Circulating fluid inlet A
9 Circulating fluid outlet A
10 Baffle plate A
11 End plate A
12 Circulating fluid convection hole A
13 Cooling pipe 14 Fin 15 Cooling tank B
16 Circulating fluid inlet B
17 Circulating fluid outlet B
18 Baffle plate B
19 End plate B
20 Circulating fluid convection hole B
21 Cooling tank C
22 Circulating fluid inlet C
23 Circulating fluid outlet C
24 Return bend 25 Cooling tank D
26 Circulating fluid inlet D
27 Circulating fluid outlet D

Claims (5)

After the cooling tank, the circulating fluid inlet, the circulating fluid outlet, the heat exchanger, the baffle plate, and the circulating fluid pass through the circulating fluid inlet, the inner wall in the cooling tank and the left and right end plates of the heat exchanger And a baffle plate provided with a circulating fluid convection hole disposed at the enclosed location, and after passing through the baffle plate, after heat exchange between the fins constituting the heat exchanger and the cooling pipe, to the circulating fluid outlet A liquid cooler characterized by constituting a discharge path. 2. The liquid cooler according to claim 1, wherein the circulating liquid inlet and the circulating liquid outlet are respectively arranged at positions facing the cooling tank. The circulating fluid inlet and the circulating fluid outlet are arranged in the same direction, and the width of the baffle plate is smaller than the width of the end plates on the left and right of the heat exchanger. Liquid cooler. The liquid cooler according to claim 1, wherein the circulating liquid convection holes are disposed in the left and right end plates of the heat exchanger. The liquid cooler according to claim 3, wherein circulating liquid convection holes are disposed in the left and right end plates of the heat exchanger.