JP2000283367A - Fluid distribution block for heat sink - Google Patents

Abstract

(57) [Summary] [Problems] (1) By supporting a load acting from the upper part with a plurality of flanges, it is possible to disperse the load directly applied to the supply / return connection pipe, and (2) Provided is a fluid branch block for a radiator plate, which can easily fit an external heat medium tube to a going / return connecting pipe by using a jig used from (1). According to a first aspect of the present invention, a forward / return connection pipe and a supply / return connection pipe are connected to a side surface of a hexahedral block serving as a base, and a forward / return flow path is bored inside the base. In the fluid branch block for a radiator plate, the supply / return connection pipe is connected to two side surfaces, and a flange portion is provided to extend outward at right angles to the two side surfaces. According to a second aspect of the present invention, in the fluid branch block for a heat sink, a through hole extending from one wide surface side of the hexahedral block to the other wide flat surface side is formed so as not to intersect with the going / return flow path. It is characterized by the following. [Effect] The above problem is solved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluid branch block for a heat sink (hereinafter sometimes simply referred to as a "branch block"). More specifically, the load applied to the connection pipe (sleeve) for supplying / returning the heat medium of the branch block,
A heat medium tube (hereinafter, sometimes referred to as an “external heat medium tube”) that can be dispersed and supported and that allows a heat medium from the outside to flow when flowing into the branch block is provided as a tube of the branch block. The present invention relates to a fluid branch block for a heat-dissipating radiator plate which can be smoothly fitted to a connection pipe for heat medium flow / return using a jig.

[0002]

2. Description of the Related Art Conventionally, in order to improve the livability of a general house, apartment house, commercial building or hotel, a floor heating system for heating an indoor space by radiating heat from a floor surface has been proposed.
Has been put to practical use. As a typical example of this floor heating system, a thick heat insulating material layer was laid on the upper surface of the lower plywood, a groove was meandered on the surface of the heat insulating material layer, and a heating element was embedded in the groove. A method is adopted in which a heat radiating plate (mat or panel) is used, and a thin metal plate and a surface material are sequentially laid thereon to form a heatable floor.

In the above method, if the heating element has a structure that is heated by energization, there is no temperature unevenness depending on the location when the floor surface is viewed macroscopically. However, when the heating element has a structure in which the heating medium is heated by circulating the heating medium through the heating medium tube, a pressure loss occurs according to the length of the heating medium tube, and from the inlet side of the heating medium. The farther away, the lower the temperature of the heat medium, and even if the floor surface is viewed macroscopically, considerable temperature spots may occur depending on the location. For the purpose of solving this drawback, there has been proposed a method of using a branch block to spread the heat medium uniformly over the entire radiating plate (for example, see Japanese Patent Application Laid-Open No. 9-269135).

A heat medium whose temperature has been adjusted by an external temperature control device flows into the branch block through an external heat medium tube, and the heat medium is radiated through the inside of the branch block. Tube for heat medium embedded in the plate (hereinafter,
"Buried heating medium tube")
After circulating in the buried heat medium tube, it is returned to the branch block and returned to an external temperature controller again.
For this reason, in the branch block, connecting pipes (hereinafter, referred to as “going connecting pipes” and “return pipes”, respectively) for externally fitting an external heat medium tube are provided on the side surfaces of the hexahedral block serving as the base. Connection pipe) and connection pipes for supplying and returning the heat medium (hereinafter referred to as “supply connection pipes,
"Return connection pipe" may be connected.

As the branch block, a metal branch block is generally used. However, since the metal branch block is manufactured by joining a plurality of parts, the structure becomes complicated and quality unevenness occurs. It tends to occur. For this reason, a synthetic resin branch block in which a metal branch block is improved has been proposed. However, this synthetic resin branch block is inferior in rigidity to a metal block, and when a load is applied from above while buried in a heat sink, a part of this load is converted to a hexahedral block. There is a drawback that the power is transmitted to the connection part with each connection pipe (the root of each connection pipe), and each connection pipe is broken from the root. Even in the case of a metal branch block, the root of each connection pipe may have low strength, and if a constant load is applied for a long period of time, metal fatigue may occur and breakage may occur.

On the other hand, the supply / return connection pipe of the branch block and the buried heat medium tube are usually connected in advance at the factory when assembling a heatable radiator plate, whereas the forward / return connection pipe of the branch block is connected. And the external heat medium tube are often connected on site according to the installation site. Since a hard synthetic resin tube such as cross-linked polyethylene or polybutene is mainly used as the external heat medium tube, the connecting operation is conventionally performed using a jig.

Conventionally used jigs for connecting the connecting tube to the external heat transfer tube include a claw of a holder for holding the connection tube, a clamp for holding the external heat transfer tube, a clamp and the holder. Typically, a mechanism having a mechanism for linearly approaching each other with the nail is provided. This jig is suitable for the work of connecting the connection pipe without using the branch block and the external heat medium tube, but the branch block is based on a hexahedral block, and the hook of the holder is hung or inserted. Since there is no part to be connected, the above jig could not be used, but connection without using a jig was impossible.

[0008]

SUMMARY OF THE INVENTION In view of the above circumstances, the present inventors have made intensive studies to provide a fluid branch block for a heat sink which has solved the above-mentioned drawbacks of the prior art at once, and as a result, completed the present invention. It was done. The objects of the present invention are as follows. 1. By dispersing and supporting the load applied from the upper part also to the plurality of flanges, the load directly applied to the supply / return connection pipe can be reduced, and these connection pipes can be hardly broken. To provide a fluid branch block for a heat sink. 2. When installing a heat radiator plate that can be heated, the external heat medium tube can be easily fitted to the heat medium return / return connection pipe at the construction site using a jig conventionally used. To provide a fluid branch block for a heat sink.

[0009]

According to a first aspect of the present invention, there is provided a flat hexagonal block having a connecting pipe for feeding and returning a heat medium on one side thereof. A plurality of heat medium supply / return connection pipes are respectively connected to two side surfaces located at right angles and facing each other, and inside the hexahedral block, there is a connection between the heat medium supply connection pipe and the hexahedral block. A flow path for distributing the heat medium flowing into the connection pipe for supplying the heat medium, and a flow path for returning the heat medium flowing into the hexahedral block from the connection pipe for returning the heat medium to the connection pipe for returning the heat medium In the fluid branch block for a heat sink formed by drilling
A fluid branch block for a radiator plate, characterized in that a flange portion is provided extending from two side surfaces to which the connection pipes for heat medium supply / return are connected and extending outward at right angles to the two side surfaces. I will provide a.

According to a second aspect of the present invention, a connecting pipe for feeding and returning a heat medium is provided on one side surface of a flat hexahedral block, and on two side surfaces which are perpendicular to the one side surface and face each other. A plurality of connecting pipes for supplying and returning the heating medium are connected to each other, and inside the hexahedral block, the heating medium flowing into the hexahedral block from the connecting pipe for going out of the heating medium is supplied. A fluid for a radiator plate, in which a flow path for distributing heat to the connection pipe for returning the heat medium from the connection pipe for returning the heat medium to the connection pipe for returning the heat medium to the connection pipe for returning the heat medium is formed. In the branch block, a through hole extending from one wide plane side of the hexahedral block to the other wide plane side is formed so as not to intersect with each of the flow paths, and the fluid branch block for a heat sink is characterized in that I will provide a.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
In the present invention, the radiator plate fluid branching block is connected to a buried heat transfer medium tube buried in a meandering manner in a radiator plate for floor heating used in buildings such as ordinary houses, apartment houses, commercial buildings or hotels, The heat medium that has flowed in from the external temperature control device via the external heat medium tube is distributed and supplied to the embedded heat medium tube, and the heat medium returned from the embedded heat medium tube is concentrated, and the heat medium is returned to the outside. Is returned to the temperature control device.

[0012] The branch block is provided with a forward connection pipe and a return connection pipe for externally fitting the external heat medium tube so that the heat medium flows through the external heat medium tube. The heat medium flowing from the outgoing connection pipe is distributed in various directions inside the branch block, and is supplied to the buried heat medium tube via the supply connection pipe. The heat medium circulated in the embedded heat medium tube is returned to the return connection pipe, returned to the return connection pipe inside the branch block, and returned to the outside.

The branch block according to the first and second aspects of the present invention has a flat plate-shaped hexahedral block as a base. The shape of the hexahedral block can be appropriately determined in consideration of the size and shape of the heat sink to be arranged. For example, a planar shape is rectangular, a planar shape is trapezoidal,
Or, those in which these four corners are cut out are exemplified.

A forward connection pipe and a return connection pipe are connected to one side surface of a flat hexahedral block which is a base of the branch block. A plurality of supply connection pipes and a plurality of return connection pipes are respectively connected to two side faces that are perpendicular to the one side face and face each other. The position of the connecting pipe connected to each side,
The length, direction, cross-sectional shape, and the like can be appropriately determined in consideration of the inner diameter of the external heat medium tube and the embedded heat medium tube, the material of the branch block, the position where the branch block is embedded, and the like. For example, when integrally manufacturing the branch block with a synthetic resin, in consideration of the ease of manufacture of the mold and the ease of opening the mold at the time of injection molding, each connecting pipe is perpendicular to each side surface, It is preferable to provide the same length at equal intervals. It is preferable to form irregularities on the outer peripheral surface of these connection pipes so that they do not easily come off when an external heat medium tube or a buried heat medium tube is fitted on the outer peripheral surface.

In the inside of the branch block, for example,
As described in Japanese Unexamined Patent Publication No. 269135, a flow path for a heat medium (hereinafter referred to as an “outgoing flow path”) for distributing a heat medium flowing from an outgoing connection pipe to a supply connection pipe connected to an appropriate position. From the return connection pipe connected to an appropriate position after the heat medium circulates in the buried heat medium tube,
A flow path for heat medium return (hereinafter, sometimes referred to as “return flow path”) for concentrating the heat medium returned to the inside of the branch block to the return connection pipe is provided. The position, length, direction, branching mode, cross-sectional shape, and the like of these going / returning channels can be appropriately determined in consideration of the material of the branch block, the type and properties of the heat medium, and the like.

[0016] A flange portion is provided extending from two sides to which the supply / return connection pipe of the branch block according to the first invention of the present invention is connected at right angles to the two sides and outward. When a load is applied to the branch block buried in the radiator plate for floor heating from above due to movement of a person, placement of furniture, and the like, the flange is dispersed and supported at a plurality of locations. As a result, the load directly applied to the supply / return connection pipes of the branch block is reduced, and these connection pipes are hardly broken.

The position and the number of the above-mentioned flanges are appropriately determined in consideration of the size of the branch block, the number and positions of the connected supply / return connection pipes, the ease of manufacturing the flanges, and the like. Can be. As an example, when the supply / return connection pipes of the branch block are provided near the two ends in the longitudinal direction on the two side surfaces connected to each other, the load applied to the branch block can be evenly dispersed and supported. Therefore, it is preferable. The width of the flange is preferably wider than the diameter of each supply / return connection pipe so that the load can be sufficiently supported. The length of the flange is preferably equal to or slightly longer than the length of each supply / return connection pipe. The cross-sectional shape cut at a right angle to the length direction of the flange can be appropriately determined in consideration of the ease of manufacturing the flange, and the like.
For example, the shape may be a square, a circle, an ellipse, or the like.

In the branch block according to the second invention of the present invention, a through hole extending from one wide plane side of the hexahedral block to the other wide plane side is formed so as not to cross each of the flow paths. . Here, “does not intersect” refers to a state in which the above-mentioned through hole and each flow path provided inside the branch block do not communicate with each other. A partition is provided between the through hole and each flow path, and the through hole is formed so that the heat medium sent to each flow path does not leak. This through hole is used to insert a nail of a holder of the jig when the external heat medium tube is externally fitted to the connection / return connection pipe using a jig at a site where a heat sink is laid. A part of the branch block can be clamped by the claw of this holder, and one side of the jig is supported and the external heat transfer medium tube is linearly approached to the claw side of the holder while being held by the clamp,
The external heat medium tube can be smoothly fitted to the going / return connecting tube.

[0019] The shape and size of the through hole,
The angle and the like can be appropriately determined in consideration of the shape and size of the branch block, the shape and size of the holder of the jig, the drilling position and size of each flow path, and the like. As an example, the outgoing connection pipe and the outgoing flow path, the return connecting pipe and the return flow path respectively communicate linearly, and the outgoing flow path and the return flow path are branched at a right angle, and the supply connecting pipe, When communicating with the return connection pipe, a rectangular through hole having four sides parallel to the respective flow paths can be formed.

When the branch block according to the present invention is made of metal, a hexahedral block serving as a base and a connection pipe can be separately manufactured, and these can be connected by screwing or joining. The kind of metal used at this time is
It can be appropriately determined in consideration of manufacturability, rigidity, heat resistance and the like of each part.

When the branch block according to the present invention is made of a synthetic resin, the synthetic resin is preferably an engineering plastic excellent in heat resistance, chemical resistance, rigidity, etc., for example, polyphenylene ether, polyphenylene sulfide, or the like. Examples thereof include polyphenylene sulfone, polysulfone, and polyether sulfone. Among them, polyphenylene sulfone is preferable. Various resin additives such as a coloring agent, a stabilizer, a filler, a flame retardant, glass fiber, talc, and titanium oxide can be blended with the synthetic resin.

When the branch block is manufactured from a synthetic resin, it is preferable that the branch block be integrally formed by an injection molding method. The mold used at this time includes a dividable mold part for forming the outer shape of the branch block, a core rod forming a flow path inside the branch block, and a forward / backward movement with respect to the divisible mold part. And those constituted by the movable parts made possible. When manufacturing the branch block according to the present invention using the mold, first, the core rod for forming the flow path is positioned at the deepest part in a state where the mold part that can be divided is clamped, and the resin material is What is necessary is to inject into a mold cavity from a mold gate, cool and open the mold, and take out the product from the mold cavity.

When connecting the branch block according to the first aspect of the present invention to the external heat medium tube and the buried heat medium tube, the same method as that of the conventional branch block can be adopted. Further, with respect to the branch block according to the second invention of the present invention, the buried heat medium tube and the supply / return connection pipe are connected in advance at a factory or the like, and then are carried into the site,
By using a conventionally used jig, the external heat medium tube can be externally fitted to the going / return connecting pipe.

A heat medium whose temperature and pressure have been adjusted by a temperature adjusting device installed outside is introduced into the branch block disposed and embedded in the heat sink through an external heat medium tube.
This heat medium is circulated to the buried heat medium tube via the going connection pipe, the going flow path, and the supply connection pipe of the branch block in order. The heat medium circulated through the buried heat medium tube is returned to the temperature controller via the return connection pipe, the return flow path, and the return connection pipe of the branch block in order. Thereafter, the temperature and pressure of the heat medium are adjusted by the temperature adjustment device, and the heat medium is sent to the outgoing connection pipe of the branch block again.

[0025]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a branch block according to the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the following description unless it exceeds the gist.

FIG. 1 is a perspective view of an example of a fluid branch block for a heat sink according to the present invention, FIG. 2 is a perspective view of another example of a fluid branch block of a heat sink, and FIG. FIG. 4 is a perspective view of still another example of the plate fluid branch block, and FIG.
FIG. 4 is a perspective view of a state immediately before an external heat medium tube is externally fitted to a return connection pipe provided in the fluid branch block for a heat sink according to the present invention using a jig.

The branch block 10 shown in FIG. 1 has a rectangular parallelepiped hexahedral block 11 as a base, and one side of the base is connected to a forward connection pipe 12 and a return connection pipe 13 one by one. I have. Three supply connection pipes 14 and three return connection pipes 15 are alternately connected to two side faces that are perpendicular to the one side face and face each other.
At both ends of the two side surfaces where the supply connection tube 14 and the return connection tube 15 are connected, a rectangular column-shaped flange portion 16 is provided to project at right angles to the two side surfaces.

The branch block 20 shown in FIG. 2 has a rectangular parallelepiped hexahedral block 21 as a base, and one side of the base is connected to a forward connection pipe 22 and a return connection pipe 23 one by one. . Two supply connection pipes 24 and two return connection pipes 25 are alternately connected to the two side faces that are perpendicular to the one side face and that face each other.
A rectangular through hole 27 extending from one wide flat surface side of the hexahedral block 21 to the other wide flat surface so as not to cross each flow path (not shown) formed in the branch block 20. Is provided.

The branching block 30 shown in FIG. 3 has a rectangular parallelepiped hexahedral block 31 as a base, and one side of the base is connected to one outgoing connection pipe 32 and one return connection pipe 33. . Four supply connection pipes 34 and four return connection pipes 35 are alternately connected to the two side faces that are perpendicular to the one side face and face each other.
At both ends of the two side surfaces where the supply connection tube 34 and the return connection tube 35 are connected, a quadrangular prism-shaped flange portion 36 is projected at right angles to the two side surfaces. A through hole 37 extending from one wide plane side to the other wide plane side of the hexahedral block is provided so as not to cross each flow path (not shown) formed in the branch block 30. . Note that, in this example, a hollow cylindrical portion 38 is formed by providing a peripheral wall having a uniform thickness on the outer periphery of the going channel and the returning channel.

FIG. 4 is a perspective view showing a state immediately before the external heating medium tube 50 is fitted to the return connection pipe 23 of the branch block 20 shown in FIG. The jig 40 includes a holder 41, a clamp 42, a handle 4
3. A lever 44 is provided. This return connection pipe 23
In order to fit the external heat medium tube 50 to the outside, first, one claw 41a of the holder 41 is inserted into the through hole 27, the branch block 20 is held by the holder 41, and the external heat medium tube 50 is held by the clamp 42. I do. Then, handle 43
, Pull the lever 44 toward the handle, and
2 is linearly moved to the holder 41 side, and the external heat medium tube 50 is fitted to the return connection pipe 23 outside.

[0031]

The heat-dissipating fluid branch block according to the present invention has been described in detail above, and has the following particularly advantageous effects, and its industrial utility value is extremely large. 1. The fluid branch block for a heat sink according to the first invention of the present invention is provided with a plurality of flanges, so that the load applied from above can be dispersed and supported also on these flanges, Thereby, the load directly applied to the supply / return connection pipes is reduced, and these connection pipes are hardly broken. 2. The fluid branch block for a heat sink according to the first invention of the present invention is provided with a plurality of flanges, and since these flanges protect the connection pipe, after manufacturing this branch block, storage, transportation, At the time of use, the connecting pipe is less likely to break. 3. In the fluid branch block for a heat sink according to the second invention of the present invention, a through hole is formed in the block, so that when a heat sink capable of heating is installed, a treatment conventionally used at a construction site is performed. The external heat medium tube can be easily fitted to the heat medium feed / return connection pipe by using a tool. 4. In the fluid branch block for a heat sink according to the second invention of the present invention, a through hole is formed in the block, so that the weight is reduced when metal is used, and handling is easy. The amount of resin used can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of an example of a fluid branch block for a heat sink according to the present invention.

FIG. 2 is a perspective view of another example of the fluid branch block for heat sink according to the present invention.

FIG. 3 is a perspective view of still another example of the fluid branch block for a heat sink according to the present invention.

FIG. 4 is a perspective view of a state immediately before an external heat transfer medium tube is externally fitted to a return connection pipe provided in a fluid branch block for a heat sink according to the present invention using a jig.

[Explanation of symbols]

 10, 20, 30: fluid branch block for heat sink 11, 21, 31: hexahedral block 12, 22, 32: outgoing connection pipe 13, 23, 33: return connection pipe 14, 24, 34: supply connection pipe 15, 25, 35: Return connection pipe 16, 26: Flange 27, 37: Through hole 38: Hollow cylindrical part 40: Jig 41: Holder 41a: Holder claw 42: Clamp 43: Handle 44: Lever 50: External heat medium tube

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Tadashi Hasegawa 8-3, Chuo, Ami-cho, Inashiki-gun, Ibaraki Pref. Mitsubishi Chemical Industrial Products Co., Ltd. F-term (reference) 3H019 BA44 3L070 BC16

Claims (3)

[Claims] 1. A connecting pipe for feeding / returning a heat medium is provided on one side of a flat hexahedral block, and a plurality of heat medium supply / returns is provided on two sides which are perpendicular to the one side and opposed to each other. Connecting pipes are connected to each other, and inside the hexahedral block, a flow path for distributing the heat medium flowing into the hexahedral block from the connecting pipe for feeding the heat medium to the connecting pipe for supplying the heat medium. And a flow path for returning a heat medium flowing into the hexahedral block from the connection pipe for returning the heat medium to the connection pipe for returning the heat medium.
A fluid branch block for a radiator plate, comprising a flange portion extending outward from the two side surfaces to which the return connection pipe is connected at right angles to the two side surfaces. 2. A connecting pipe for feeding / returning a heat medium is provided on one side surface of the flat hexahedral block, and a plurality of heat medium supply / returns is provided on two side surfaces which are perpendicular to the one side surface and opposed to each other. Connecting pipes are connected to each other, and inside the hexahedral block, a flow path for distributing the heat medium flowing into the hexahedral block from the connecting pipe for feeding the heat medium to the connecting pipe for supplying the heat medium. And a flow path for returning a heat medium flowing into the hexahedral block from the connection pipe for returning the heat medium to the connection pipe for returning the heat medium. A fluid branch block for a heat sink, wherein a through hole extending from one wide plane side to another wide plane side is formed so as not to intersect with each of the flow paths. 3. The flange according to claim 2, wherein a flange portion is provided to extend outward at right angles to the two side surfaces from the two side surfaces to which the connection pipes for supplying and returning the heat medium are connected. Fluid distribution block for heat sink.