JP5496640B2 - Heating device - Google Patents

Description

  The present invention relates to a heating device.

  Various solutions used for business use are often transported and stored in, for example, metal 18 liter cans (also called “Ito” cans). As a technique for heating the contents contained in such a container, for example, as disclosed in Patent Document 1, there is a technique by induction heating. Moreover, as what conducts heat, there exists a heat pipe which is mentioned by patent document 2, for example.

Japanese Patent Laid-Open No. 9-81851 JP 2002-235990 A

  As a method of inductively heating the contents of a container composed of a non-magnetic material or a weak magnetic material having a low magnetic permeability, a method of transferring the heat of the ferromagnetic material that has been induction heated to the container can be considered. In this case, in order to warm the container quickly, it is desirable to heat from all surfaces such as the bottom and side surfaces of the container. However, providing a heating coil corresponding to each surface in order to cope with heating from all surfaces in this way complicates the equipment configuration.

  This invention is made | formed in view of such a subject, and makes it a subject to provide the heating apparatus which can carry out the induction heating of the contents of a container efficiently.

  In order to solve the above-mentioned problems, the present invention embeds a heat pipe in a member forming the housing portion, and induction heats a magnetic material constituting a part of the member with a heating coil.

  Specifically, it is a heating device that heats a container containing solutions, and a member that forms a floor surface that supports at least a part of the bottom surface of the container and a wall surface that stands from the floor surface. A formed accommodating portion for accommodating the container, a heating coil for induction heating a magnetic material constituting a part of a member forming the accommodating portion, and heat of the magnetic material induction-heated by the heating coil. And a heat pipe embedded in a member forming the housing portion, which is spread over the floor surface and the wall surface.

  If it is the said heating apparatus, the heat pipe is embed | buried under the member which forms an accommodating part. This heat pipe spreads the heat of the magnetic material induction-heated by the heating coil to the floor surface and the wall surface. For this reason, if a magnetic material is heated with a heating coil, heat will be added to both the bottom face side and the side face side of the container accommodated in the accommodating part. Therefore, the heat of the magnetic material is transmitted to the bottom and side surfaces of the container, and the contents of the container are efficiently induction heated.

  Here, the heating coil may be disposed on the lower side of the housing portion and may inductively heat a magnetic material forming a lower portion of the housing portion. If it is a heating apparatus comprised in this way, since a magnetic material will be comprised in the lower part of an accommodating part, a heating coil and a magnetic material can be adjoined and the whole apparatus can be reduced in size.

  The heat pipe may be embedded in a member that forms the floor surface and a member that forms the wall surface. If it is a heating apparatus comprised in this way, since heat will be transmitted to the whole floor surface and a wall surface substantially uniformly, the heat will be transmitted to the bottom face and side of a container, and the contents of a container can be induction-heated efficiently. .

  Here, the storage portion is formed by a floor member that forms the floor surface and a wall member that forms a wall surface standing from the floor surface, and the heating device includes the container A movable mechanism that moves the wall member relative to the container and abuts the wall surface against a side surface of the container in a state of being accommodated in the container, wherein the heating coil is at least a part of the wall member. Forming a magnetic field in the heat generating part formed by the magnetic material forming the magnetic material and the magnetic material forming at least a part of the floor member to inductively heat the heat generating part, and the heat pipe is attached to at least the wall member It may be buried.

  A heat pipe is embedded in the floor member and the wall member in order to transfer the heat of the heat generating portion that is induction-heated by the heating coil to the bottom surface and the side surface of the container. The floor member and the wall member are relatively moved by the movable mechanism so that heat can be directly transferred from the container to the container even if the containers have different shapes and sizes. If the container is accommodated in the accommodating portion, the bottom surface of the container contacts the floor member, so that the movable mechanism moves the wall member relative to the floor member so that the wall surface contacts the side surface of the container. It will be in the state which contacts both the floor surface member and wall surface member of a container.

  Here, since at least a part of the floor member and the wall member that move relatively by the movable mechanism part is made of a magnetic material, the magnetic material is exposed to the magnetic field formed by the heating coil. Within the range, both members can be heated even if the relative positional relationship between the floor member and the wall member is changed.

  In the case of the heating device configured as described above, since the wall surface member and the floor surface member, at least part of which are made of a magnetic material, come into contact with the side surface and the bottom surface of the container, Even in containers of different sizes, the contents of the container can be efficiently induction-heated.

  The contents of the container can be efficiently induction heated.

It is an external view of the heating apparatus which concerns on 1st embodiment. It is a figure which shows the internal structure of the heating apparatus which concerns on 1st embodiment. It is the figure which showed the positional relationship of a main body and a heating coil. It is a figure which shows the internal structure of a side member or a floor member. It is the graph which showed the temperature rise compared. It is an external view of the heating apparatus which concerns on 2nd embodiment. It is a figure which shows the internal structure of the heating apparatus which concerns on 2nd embodiment. It is a figure which shows the mechanism of a movable mechanism part. It is the figure which showed the positional relationship of a heating coil, a floor surface member, and each wall surface member. It is the figure which showed the procedure at the time of heating. It is the figure which showed the positional relationship of a floor member, a side member, a container, and a heating coil. It is a figure which shows the internal structure of a side member or a floor member. It is a figure which shows the internal structure of the side member and floor member of the heating apparatus which concerns on a modification. It is a figure which shows the internal structure of the side member and floor member of the heating apparatus which concerns on a modification.

  Hereinafter, embodiments of the present invention will be described. Embodiment described below shows the embodiment of this invention exemplarily, and this invention is not limited to such embodiment.

  The external view of the heating apparatus 1 which concerns on embodiment of this invention is shown in FIG. As shown in FIG. 1, the heating device 1 has a storage unit 3 that stores a container 2 of an 18 liter can, and the container 2 is heated in the storage unit 3. The container 2 is filled with, for example, solutions such as cosmetic raw materials. Further, the heating device 1 is provided with an operation panel 4 and legs 5 in addition to the accommodating portion 3.

  FIG. 2 is a diagram showing the internal structure of the heating device 1. As shown in FIG. 2, the heating device 1 includes a main body 6 that forms a wall surface and a floor surface of the housing portion 3, a heating coil 7 that heats the main body 6 by electromagnetic induction, and a control that controls a current flowing through the heating coil 7. A device 8 is provided. Further, as shown in FIG. 2, in the main body 6, heat pipes 9 are respectively embedded in a member that forms a floor surface and a member that forms a wall surface. In addition, the outer side of the main body 6 is covered with a heat insulating material and a cover (not shown).

  FIG. 3 is a diagram showing in detail the structure of the main body 6 and the positional relationship between the main body 6 and the heating coil 7. The main body 6 includes a floor surface member 10 that forms the floor surface of the housing portion 3 and four wall surface members 11 that form the wall surface of the housing portion 3. The wall surface member 11 is made of nonmagnetic aluminum having extremely low magnetism, while the floor surface member 10 is made of SUS430 (SUS: Stainless Used Steel) having high magnetism. When the floor member 10 made of SUS430 having high magnetism is exposed to an induction magnetic field formed by the heating coil 7 to which a current is passed by the control device 8, heat is generated by induction heating.

  Here, although the floor member 10 made of a ferromagnetic material generates heat by the heating coil 7, each wall member 11 does not generate heat due to electromagnetic induction because it is made of a non-magnetic material. Therefore, in the housing part 3 formed by the floor member 10 and each wall member 11, only the lower part made of a ferromagnetic material can generate heat, but in the heating device 1, the floor member 10 In addition, by embedding the heat pipe 9 inside the wall member 11, uneven heating of the container 2 due to local heat generation is prevented. FIG. 4 is a diagram illustrating the internal structure of the wall surface member 11 and the floor surface member 10. FIG. 4A shows the internal structure of the wall surface member 11, and FIG. 4B shows the internal structure of the floor member 10. As shown in FIG. 4, three heat pipes 9 are embedded in the floor member 10 so as to lie side by side, and the four heat pipes 9 are also arranged side by side on each wall member 11. It is buried in. The heat pipe 9 is built in for the purpose of supplementing the thermal conductivity of the wall surface member 11 and the floor member 10 so that the temperature distribution of the wall member 11 and the floor member 10 becomes substantially uniform. As is well known, the heat pipe 9 is a pipe in which a volatile hydraulic fluid is enclosed. When one of the pipes is heated, the hydraulic fluid evaporates, and the other of the pipes is called condensation of the hydraulic fluid. When a cycle occurs, heat is transferred. Since the wall surface member 11 and the floor surface member 10 are configured in this way, the heat generated by the ferromagnetic material constituting the floor surface member 10 is evenly transmitted to the floor surface member 10 and each wall surface member 11, and the temperature is increased. The distribution becomes substantially uniform, and efficient heating of the container 2 is realized.

If it is the heating apparatus 1 comprised as mentioned above, since it heat-transfers not only from the bottom face side but from the side face side, the contents of a container can be induction-heated efficiently. The difference in effect due to the presence or absence of the heat pipe 9 will be verified below. FIG. 5 shows a heating device 1 according to the present embodiment in which a heat pipe is embedded (hereinafter referred to as an example), and a heating device in which a heat pipe is not embedded in a heating device similar to the present embodiment (hereinafter referred to as a comparative example). It is a graph showing a comparison of temperature rise. In the graph of FIG. 5, “with pipe” is an example, and “without pipe” is a comparative example. “Upper” indicates the temperature of the upper part of the wall member, “Middle” indicates the temperature of the middle part, and “Lower” indicates the temperature of the lower part. As shown in the graph of FIG. 5, compared to the comparative example in which the heat pipe is not embedded, the example in which the heat pipe is embedded rises more rapidly at the beginning of heating, and the temperature rises while maintaining the temperature increase difference. It can be seen that continues. Therefore, it can be seen that the contents of the container can be efficiently induction-heated as compared with the case where the heat pipe is not embedded.

  In the heating device 1, the temperature control by the control device 8 was not specially described. For example, a temperature sensor is installed, and the control device 8 causes the heating coil so that the measured value of the temperature sensor becomes a desired value. 7 may be adjusted. In this case, it can be assumed that the temperature sensor is installed at any location in the container 2, such as the wall member 11, the floor member 10, or the like, but more preferably, the ferromagnetic material generates heat by the heating coil 7. A location that is not easily affected by the temperature change of the body material and that can easily detect the temperature of the contents to be heated, such as the inside of the container 2 or the wall surface member 11 is preferable. When the temperature sensor is provided on the wall surface member 11, it is preferable that the temperature sensor protrude from the wall surface so as to come into contact with the container 2 in order to accurately detect the temperature of the container 2. When the temperature sensor is installed in a place other than the inside of the container 2, for example, the wall member 11 or the floor member 10, the current of the heating coil 7 is set so that the value indicated by the temperature sensor becomes the target temperature of the contents of the container 2. However, since the value indicated by the temperature sensor is not the temperature of the content itself, more preferably, a map that defines the correlation between the value indicated by the temperature sensor and the temperature of the content is prepared in advance. It is preferable to compare the value indicated by the temperature sensor with the map to estimate the temperature of the contents, and to control the current of the heating coil 7 so that the estimated temperature becomes the target temperature. Here, the map may be configured with values identified by experiments, or may be configured with values obtained by simulating thermal behavior. In addition, the map prepares a plurality of patterns according to external conditions such as the temperature at the start, the outside air temperature, the type of contents, etc., and the value that the temperature sensor indicates which pattern is used, etc. It may be referred to automatically according to the selection or manually selected by the user.

  Moreover, in the said heating apparatus 1, although the four heat pipes 9 were embed | buried in each wall surface member 11 and three were embedded in the floor surface member 10, this invention is limited to such an aspect. is not. For example, 1 to 3 may be embedded in each wall member 11 or floor member 10, or 4 or more may be embedded.

  Moreover, in the said heating apparatus 1, although the heating coil 7 was made into the square shape, this heating coil 7 should just be able to form an induction magnetic field in the floor surface member 10, and if it is such, it will be a round shape, for example It is good.

  The heating device 1 warms the rectangular container 2, but other containers such as cylinders, triangles, hexagons, and octagons are placed in the housing 3. May be heated. In this case, the accommodating portion 3 may remain square like the heating device 1 described above, but may be a wall surface member that constitutes, for example, a columnar, triangular, hexagonal, or octagonal wall surface when viewed from above.

  Moreover, in the said heating apparatus 1, although the wall surface member 11 was comprised with the nonmagnetic material, this invention is not limited to such a thing. The wall surface member 11 may have, for example, a structure in which a ferromagnetic material is disposed or embedded in the vicinity of the lower edge of a nonmagnetic or weak magnetic plate. The same applies to the floor member 10, and is not composed entirely of a ferromagnetic material, for example, a plywood structure in which a nonmagnetic or weak magnetic plate and a ferromagnetic plate are bonded together, or a nonmagnetic or A configuration in which a ferromagnetic material is embedded in a weak magnetic material plate may be used.

Hereinafter, a second embodiment of the present invention will be described. The external view of the heating apparatus 51 which concerns on 2nd embodiment is shown in FIG. As shown in FIG. 6, the warming device 51 has a housing portion 53 that houses the container 2, and heats the container 2 in the housing portion 53. As shown in FIG. 6, the heating device 51 is provided with an operation panel 54, a handle 62, and a caster 63 for moving the heating device 51 in addition to the housing portion 53.

  Here, the 18 liter cans constituting the container 2 are standard products generally used when trading solutions, and these 18 liter cans distributed in the market have almost the same shape and size. Yes. However, there are slight variations in the shape and size, and there is a tolerance of about 5 to 10 mm.

  FIG. 7 is a diagram showing the internal structure of the heating device 51. As shown in FIG. 7, the heating device 51 includes four wall surface members 61 that form the wall surface of the housing portion 53, a floor surface member 60 that forms the floor surface of the housing portion 53, and the wall surface member 61 as the floor surface member 60. A movable mechanism 64 that moves relative to the heating mechanism 57, a heating coil 57 that heats the container 2 by electromagnetic induction, and a control device 58 that controls the current flowing through the heating coil 57 are provided.

  FIG. 8 is a diagram illustrating the mechanism of the movable mechanism portion 64. As shown in FIG. 8, the movable mechanism portion 64 is engaged with four drive shafts 65 disposed so as to surround the four wall surface members 61, and worm gears 66 provided on the respective drive shafts 65. Four actuating shafts 67 rotating with 65 are provided. The drive shafts 65 are connected to each other via a bevel gear 68 so that driving force is transmitted. The handle 62 described above is mounted on one of the four drive shafts 65, and each drive shaft 65 is rotated when the user rotates the handle 62. The operation shaft 67 is engaged with the wall surface member 61 by a screw. For example, when the operation shaft 67 rotates when the handle 62 is rotated to the right, each wall surface member 61 moves in the direction indicated by the arrow in FIG. When the handle 62 is rotated to the left, each wall member 61 also moves in the direction opposite to the arrow in FIG.

  FIG. 9 is a view showing the positional relationship among the heating coil 57, the floor member 60, and each wall member 61. When the handle 62 is rotated, each wall member 61 moves relative to the floor member 60 disposed on the heating coil 57. The two wall surface members 61 that face each other move toward or away from each other when the handle 62 is operated. Therefore, when the container 2 is placed in the accommodating portion 53, the container 2 is sandwiched between the two wall members 61 facing each other.

  FIG. 10 is a diagram showing a procedure when the container 2 is put in the heating device 51 for heating. The warming device 51 puts the container 2 in the accommodating portion 53 as shown in FIG. 10 (a), and then rotates the handle 62 to move each wall member 61, as shown in FIG. 10 (c). The wall surface member 61 is brought into contact with the side surface of the container 2. Accordingly, the container 2 is in a state where the bottom surface is supported by the floor member 60 and the side surface is supported by each wall member 61. When heating is started by operating the operation panel 54 in this state, the controller 58 causes a current to flow through the heating coil 57 to form a high-frequency magnetic field, and the container 2 starts to warm.

  In addition, since this heating device 51 employs a configuration in which the container 2 is heated by transferring the heat of the floor member 60 and each wall member 61 to the container 2, in this embodiment, the bottom surface of the container 2 is used. However, the present invention is not limited to such an embodiment, and at least a part of each of the bottom surface and the wall surface of the container 2 is supported. It may be done.

FIG. 11 is a view showing the positional relationship between the floor member 60 and the wall member 61, the container 2, and the heating coil 57. The upper portion 70 of the wall surface member 61 is made of nonmagnetic SUS316 (SUS: Stainless Used Steel), while the floor surface member 60 and the lower portion 71 of each wall surface member 61 are made of SUS430 having high magnetism. ing. Then, a highly magnetic SUS is applied to the induction magnetic field formed by the heating coil 57 to which a current is passed by the control device 58.
The heat generating unit 69 generates heat when the heat generating unit 69 configured by the floor member 60 configured by 430 and the lower portion 71 of each wall surface member 61 is exposed. The relative positional relationship between the floor member 60 and each wall member 61 may be different within the tolerance range of the standard container 2, but the lower portion 71 of each wall member 61 is exposed to this induction magnetic field. If it is inside, the lower portion 71 generates heat.

  Here, although the heat generating portion 69 made of a ferromagnetic material generates heat by the heating coil 57, the upper portion 70 of each wall member 61 does not generate heat by the heating coil 57. Therefore, the accommodating part 53 formed by the floor member 60 and each wall member 61 may generate heat only in the lower part where the heat generating part 69 is present, but in the heating device 51, the floor member 60 and By configuring the interior of the wall surface member 61 as follows, uneven heating of the container 2 due to local heat generation is prevented. FIG. 12 is a view showing the internal structure of the wall surface member 61 and the floor surface member 60. FIG. 12A shows the internal structure of the wall surface member 61, and FIG. 12B shows the internal structure of the floor member 60. As shown in FIG. 12, the wall surface member 61 and the floor surface member 60 are provided with heat pipes 59 therein. The heat pipe 59 is incorporated for the purpose of supplementing the thermal conductivity of the wall surface member 61 and the floor surface member 60 so that the temperature distribution of the wall surface member 61 and the floor surface member 60 becomes substantially uniform. Since the wall surface member 61 and the floor surface member 60 are configured in this way, the heat generated in the heat generating portion 69 is evenly transmitted to the floor surface member 60 and each wall surface member 61, and the temperature distribution becomes substantially uniform. 2. Efficient heating is realized.

  If it is the heating apparatus 51 comprised as mentioned above, even if it is a standard product, about the container from which a size differs a little by tolerance, the container from which a shape differs mutually, etc. not only from the bottom face side but also from the side face side Heating is possible by transferring heat.

  In the heating device 51, all the four wall surface members 61 are moved. For example, only the two wall surface members 61 are moved by the movable mechanism 64 as shown in FIG. Alternatively, only the three wall members 61 may be moved by the movable mechanism 64. Each wall surface member 61 has a single plate shape, but the container 2 may be sandwiched between two plate-shaped members having an L-shape when viewed from above as shown in FIG.

  In the heating device 51, each wall surface member 61 is moved by a movable mechanism 64 constituted by a gear mechanism such as an operating shaft 67 and a drive shaft 65. However, for example, it is constituted by a spring, a link, or the like. Each wall surface member 61 may be moved by the user raising or lowering the lever by a mechanism that is moved, or each wall surface member 61 is moved by a hydraulic cylinder or a pneumatic cylinder whose expansion and contraction is controlled by the control device 58 or the like. You may do it.

  In addition, as described in the description of the heating device 1 according to the first embodiment, the heating device 51 according to the present embodiment is also provided with a temperature sensor, for example, as with the heating device 1, and the measured value of the temperature sensor. The control device 58 may adjust the current of the heating coil 57 so that becomes a desired value. In the case where the temperature sensor is provided so as to protrude from the wall surface formed by the wall surface member 61 of the heating device 51 according to the present embodiment, the wall surface member 61 is brought into contact with the side surface of the container 2 by the movable mechanism portion 64. The sensor reliably contacts the container 2 and the temperature is detected more precisely.

1, 51 ·· Heating device 2 · · Container 3, 53 · · Housing 6 · · Body 7, 57 · · Heating coil 9, 59 · · Heat pipe 10, 60 · · Floor member 11, 61 · · · Wall member

Claims (3)

A heating device for heating a container containing solutions,
An accommodating portion for accommodating the container, formed by a member that forms a floor surface supporting at least a part of the bottom surface of the container and a wall surface standing from the floor surface;
A heating coil for inductively heating a magnetic material constituting a part of the member forming the housing portion;
A heat pipe embedded in a member forming the housing part, which spreads heat of the magnetic material induction-heated by the heating coil to the floor surface and the wall surface;
A movable mechanism for moving the wall member forming the container relative to the container and bringing the wall into contact with the side surface of the container in a state where the container is housed in the container;
The housing portion is formed by a floor member that forms the floor surface and the wall member that forms a wall surface standing from the floor surface,
The heating coil forms a magnetic field in a heat generating part constituted by a magnetic material constituting at least a part of the wall surface member and a magnetic material constituting at least a part of the floor member and induction heats the heat generating part. And
The heat pipe is embedded in at least the wall surface member,
Heating device. The heating coil is disposed below the housing portion, and induction-heats the magnetic material forming the lower portion of the housing portion.
The heating apparatus according to claim 1. The heat pipe is embedded in a member that forms the floor surface and a member that forms the wall surface,
The heating apparatus according to claim 1 or 2.

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