Constant temperature and humidity device

Abstract

To provide a constant temperature / humidity device that can restrain unevenness of temperature distribution in an interior.SOLUTION: A constant temperature / humidity device comprises a storage chamber, a fan for circulating interior air in the storage chamber, and a warming heater arranged in a flow passage for the interior air, and for warming the interior air. The warming heater comprises a plurality of linear parts, and a curved part connecting end parts of two of the linear parts. A wall part for guiding the interior air to the linear parts is provided.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a thermo-hygrostat.

Background Art

[0002] In Patent Document 1, a thermo-hygrostat is disclosed which includes a storage chamber for storing bread dough or the like, a heating heater for heating air, and an in-chamber circulation fan for circulating the air inside the chamber. The heating heater in Patent Document 1 heats the air circulated by the drive of the in-chamber circulation fan and controls the temperature of the storage chamber.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present disclosure provides a thermo-hygrostat capable of suppressing the deviation of the temperature distribution inside the chamber.

Means for Solving the Problems

[0005] The thermo-hygrostat in the present disclosure is a thermo-hygrostat including a storage chamber, a fan for circulating the air inside the storage chamber, and a heating heater disposed in the air flow path inside the chamber for heating the air inside the chamber, wherein the heating heater includes a plurality of straight portions and curved portions connecting the ends of the two straight portions, and a wall portion for guiding the air inside the chamber to the straight portions is provided The device further comprises a heater mounting member that supports the heating element, and the flow path includes a first flow path in which the straight portion is located and a second flow path in which the curved portion is located, the first flow path and the second flow path are separated by the heater mounting member, and the wall portion obstructs the second flow path.

Effects of the Invention

[0006] The thermo-hygrostat in the present disclosure can suppress the deviation of the temperature distribution of the air flow sent to the storage chamber.

Brief Description of the Drawings

[0007] [Figure 1] Perspective view of a constant temperature and humidity apparatus in Embodiment 1 [Figure 2] This figure shows the internal structure of the constant temperature and humidity apparatus in Embodiment 1, viewed from the front. [Figure 3] Cross-sectional view AA in Figure 2 [Figure 4] BB cross-section view in Figure 2 [Figure 5] Cross-sectional view of CC in Figure 2 [Figure 6] Enlarged perspective view of the heating element [Figure 7] Plan view of a heating element in another embodiment [Figure 8] Plan view of a heating element in another embodiment [Modes for carrying out the invention]

[0008] (Knowledge and other information that formed the basis of this disclosure) At the time the inventors conceived of this disclosure, there was a technology that controlled the temperature of the storage room by heating the circulating air, which was driven by a fan for circulation within the storage room, with a heating element.

[0009] Such heating heaters may have varying degrees of heating in different parts of the heater. The inventors discovered that when the degree of heating differs in different parts of a heating heater, it is not possible to produce uniform warm air, resulting in variations in the temperature distribution inside the chamber, which may cause variations in, for example, the fermentation time of food. The inventors have arrived at the subject matter of this disclosure in order to solve this problem. This disclosure provides a constant temperature and humidity control device that can suppress variations in temperature distribution inside the chamber.

[0010] The embodiments will be described in detail below with reference to the drawings. However, some unnecessarily detailed explanations may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted. The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims.

[0011] (Embodiment 1) Embodiment 1 will be described below with reference to the drawings. [1-1. Structure] [1-1-1. Overall Structure] Figure 1 is a perspective view of the constant temperature and humidity apparatus in Embodiment 1, and Figure 2 is a diagram showing the internal structure of the constant temperature and humidity apparatus in Embodiment 1 from the front side. Figure 3 is a cross-sectional view AA of Figure 2, and Figure 4 is a cross-sectional view BB of Figure 2. In this specification, the directions of the constant temperature and humidity apparatus 10, such as front, back, left, and right, are used based on Figures 1 and 2. For example, left and right in Figures 1 and 2 correspond to left and right of the constant temperature and humidity apparatus 10. Also, the front and rear of the constant temperature and humidity apparatus 10 are referred to as the front and back, respectively. Furthermore, the X, Y, and Z axes are shown in the diagram as appropriate. The X, Y, and Z axes are orthogonal to each other. The Z axis extends vertically. The Z axis indicates the up and down direction of the constant temperature and humidity device 10 in its installed state. The Y axis extends horizontally. The Y axis indicates the left and right direction of the constant temperature and humidity device 10. The X axis indicates the front and back direction of the constant temperature and humidity device 10. The front and back direction of the constant temperature and humidity device 10 corresponds to the front and back as described above. The positive direction indicated by the arrow on the Z axis indicates upward. The positive direction indicated by the arrow on the Y axis indicates to the right. The positive direction indicated by the arrow on the X axis indicates forward.

[0012] The constant temperature and humidity device 10 is a device that performs freeze-retard (thaw)-preheat-fermentation operations on food 1, such as donut dough or bread dough, and is also called a dough conditioner. Food 1 can also be referred to as stored food, fermentation target, or target object, etc. As shown in FIG. 1, the thermo-hygrostat 10 includes a main body 3 having a heat-insulating box 2 with an open front surface. A door 4 for opening and closing the front opening of the heat-insulating box 2 is attached to the main body 3. The heat-insulating box 2 is configured to be insulated with a foamed type heat-insulating material, and the door 4 is formed as a heat-insulating door insulated with a heat-insulating material. On one side of the left and right sides of the main body 3 (the left side of the heat-insulating box 2 in this configuration), a machine room 5 (FIG. 2) is provided.

[0013] As shown in FIGS. 2 and 4, in the machine room 5, a compressor 6, a condenser 7, a condenser fan 7F, an evaporator 8, and an evaporator fan 8F that constitute a refrigeration device are arranged. As shown in FIG. 2, the upper part of the left side surface of the heat-insulating box 2 is open, and an auxiliary heat-insulating material 9 is provided above the machine room 5 so as to close this opening from the outside. The evaporator 8 and the evaporator fan 8F are arranged in the auxiliary heat-insulating material 9. The space in the auxiliary heat-insulating material 9 communicates with a cold air passage TC described later through a cold air discharge duct 9B partitioned by a cold air passage partition plate 9A.

[0014] As shown in FIG. 1, the machine room 5 is surrounded by a panel 5P that forms a part of the exterior of the thermo-hygrostat 10, and a control panel 5CP is provided on the front surface of the panel 5P. The control panel 5CP is electrically connected to a control device 100 that controls each part of the thermo-hygrostat 10, and has a function of inputting various instructions from a user and displaying an operating state or the like. The control device 100 controls each part of the thermo-hygrostat 10 based on an instruction input through the control panel 5CP and a detection result of a sensor group 101 that detects the state of each part of the thermo-hygrostat 10. In this configuration, the control device 100 is built into the thermo-hygrostat 10. However, it is not limited to this configuration, and the control device 100 may be provided outside the thermo-hygrostat 10, and the thermo-hygrostat 10 may be remotely controlled by the control device 100.

[0015] As shown in FIGS. 2 and 3, an inner box 21 is arranged in the heat-insulating box 2 with a gap serving as a cold air passage TC left between the inner surface of the heat-insulating box 2. The inner box 21 is formed in a box shape with an open front surface and is made of a material having heat conductivity. Inside the inner box 21, a storage chamber 22 with an open front is provided. Above the storage chamber 22, an upper duct plate 23 is arranged with a gap serving as the downstream warm air passage TW between it and the inner box 21. Also, behind (the back side) of the storage chamber 22, a fan cover 24 is arranged with a gap serving as the upstream warm air passage TW between it and the inner box 21. In this way, the upper duct plate 23 and the fan cover 24 define a continuous warm air passage TW extending from the back side to above the storage chamber 22.

[0016] On both inner side surfaces of the inner box 21 that form the both side walls of the storage chamber 22, a plurality of stages of rails 41 are provided at intervals in the vertical direction. The left and right rails 41 support a shelf plate 42 extending back and forth and left and right in the storage chamber 22 so as to be slidable back and forth. The shelf plate 42 is made of a net-like plate material through which air can pass, and is also referred to as a donut net, a screen, etc. Also, the rail 41 may be referred to as a donut net receiver. The constant temperature and humidity device 10 of this configuration can arrange six stages of shelf plates 42 at intervals in the vertical direction. On each shelf plate 42, a plurality of foods 1 can be arranged at intervals in the left - right and front - back directions. For example, as shown in FIG. 4, a total of 25 foods 1 consisting of five in the left - right direction and five in the depth direction are arranged. In FIG. 2, only a part of the arranged foods 1 is shown for convenience of explanation. The size, number, and shape of the foods 1 can be changed as appropriate.

[0017] On the opposite side of the storage chamber 22 across the fan cover 24, that is, in the warm air passage TW on the back side of the storage chamber 22, a circulation fan 25 (hereinafter referred to as the circulation fan 25), a humidifier 26, and an exhaust damper 27 are arranged. The circulation fans 25 are arranged at intervals in the left - right direction. Each circulation fan 25 sucks in the air in front of the circulation fan 25 through the suction port provided on the fan cover 24 and blows the air in the centrifugal direction of the circulation fan 25. In FIG. 3, the air flow by the circulation fan 25 is shown by an arrow.

[0018] The humidifier 26 is located in the area below and to the left of the circulation fan 25 and humidifies the air drawn in by the circulation fan 25 under the control of the control device 100. The humidifier 26 is a heated type equipped with a water storage tank 26A and a humidifying heater 26B, but is not limited to this configuration. The exhaust damper 27 is located in the area below and to the right of the circulation fan 25 and opens and closes an exhaust port communicating with the cold air passage TC under the control of the control device 100.

[0019] A heating element 28 (hereinafter referred to as the heating element 28) is positioned downstream of the warm air passage TW (above the inner box 21). The heating element 28 heats the air flowing through the warm air passage TW under the control of the control device 100. Therefore, as shown in Figure 3, the air blown by the circulation fan 25 towards the top of Figure 3 is heated by the heating element 28 downstream of the warm air passage TW. The air heated by the heating element 28 is supplied to the connecting outlet 31F located at the very downstream end of the warm air passage TW. A dehumidifying fan 29 (hereinafter referred to as the dehumidifying fan 29) is provided above the inner box 21. The dehumidifying fan 29 can dehumidify the storage chamber 22 by introducing air from the cold air passage TC into the inner box 21 under the control of the control device 100.

[0020] On the inner surface of door 4 (the side facing the storage room 22), a discharge duct plate 32 is provided to partition the discharge duct 31 that communicates with the connecting discharge section 31F. The discharge duct 31 extends vertically on the front side of the storage room 22 and is a space that guides air from the connecting discharge section 31F from top to bottom. The discharge duct plate 32 is provided with outlets 32A and air deflectors 32B spaced apart vertically. The outlets 32A are provided on both the left and right sides of the storage chamber 22, and the air that flows into the discharge duct 31 from the connecting discharge section 31F is blown out into the storage chamber 22 from each outlet 32A. The air deflectors 32B are provided on the opposite side (front side) of the storage chamber 22 of the discharge duct plate 32, and have the function of diverting the air in the discharge duct 31 to each outlet 32A, and adjusting the direction of the air blown out from each outlet 32A.

[0021] The position and shape of each air outlet 32A and each air deflector 32B are configured to blow air into each of the spaces partitioned by each shelf 42. In this configuration, as shown in Figure 3, each air outlet 32A and each air deflector 32B are configured to blow air diagonally downwards toward each shelf 42 from a position in front of and above each shelf 42. In addition, each air deflector 32B is longer from the top down to prevent air from the connecting air outlet 31F from going too far to the upper levels. The inclination angle of each air deflector 32B is the same. However, the shape and inclination angle of each air deflector 32B may be changed as appropriate.

[0022] [1-1-2. Heating Heater Configuration] Figure 5 is a cross-sectional view of CC in Figure 2. Figure 6 is an enlarged perspective view of the heating element. As shown in Figures 5 and 6, the heating element 28 is supported by the heater mounting member 60. The heater mounting member 60 includes a flat base plate 61 that is attached to the upper duct plate 23. The base plate 61 extends in the Y direction of the upper duct plate 23, and both ends of the base plate 61 are positioned at a predetermined distance from the side walls of the warm air passage TW. On both sides of the substrate 61, heater support plates 60A extending upward are integrally provided.

[0023] Each of the two heater support plates 60A is provided with an outwardly curved upper fixing flange 60B at its top. Thus, the heater mounting member 60 is positioned on the upper part of the upper duct plate 23 and on the lower part of the inner upper surface of the inner box 21.

[0024] A heating element 28 is installed on the heater support plate 60A. The heating element 28 comprises a plurality of straight sections 54 located between each heater support plate 60A, and a plurality of substantially U-shaped curved sections 56 that connect the ends of the straight sections 54 on the outside of each heater support plate 60A. Both ends of the heating element 28 are connected to electrical wiring, and by supplying power to the heating element through the electrical wiring, it is possible to heat the heating element to a predetermined temperature. The ends of the electrical wiring are wiring connection parts 52A and 52B which are connected to a power supply (not shown). Wiring connection part 52A corresponds to an example of a first wiring connection part, and wiring connection part 52B corresponds to an example of a second wiring connection part.

[0025] More specifically, in this embodiment, the straight sections 54 are arranged at approximately equal intervals in three in the X direction, which is the direction of airflow, between the heater support plates 60A. In addition, the straight sections 54 are arranged in two stages in the Z direction, resulting in a total of six straight sections 54. The curved section 56 is configured to connect the ends of each straight section 54, so that wiring returns from one wiring connection section 52A, 52B to the other wiring connection section 52A, 52B via each straight section 54 and each curved section 56. As a result, the curved section 56 on the side where the wiring connection parts 52A and 52B are provided is composed of two parts, while the curved section 56 on the other side is composed of three parts.

[0026] Multiple elongated holes 65 are formed in the heater support plate 60A. The heating element 28 is supported by inserting both ends of the straight section 54 into the elongated holes 65 and positioning the curved section 56 on the outside of the heater support plate 60A.

[0027] The wiring connection sections 52A and 52B are located between the electrical wiring and the heating element 28. To prevent heat transfer from the heating element 28 to the electrical wiring, they are designed to be at a lower temperature than the overall temperature of the heating element 28 when it is operating. Therefore, the temperature of the space near the wiring connection sections 52A and 52B tends to be lower than the temperature of the space occupied by the heating element 28.

[0028] Furthermore, three curved sections 56 are located in the high-temperature space SH. Two curved sections 56 and wiring connection sections 52A and 52B are located in the low-temperature space SL. The low-temperature space SL is relatively colder than the space SM where the straight section 54 is located because it has fewer curved sections 56 and contains the wiring connection sections 52A and 52B. Conversely, the high-temperature space SH is relatively hotter than the space SM where the straight section 54 is located because it has more curved sections 56.

[0029] Thus, macroscopically speaking, the space occupied by the heating element 28 exhibits a temperature distribution consisting mainly of three temperature phases. The heater support plate 60A partitions the space, which has three different temperature distributions. In other words, the heater support plate 60A has the function of partitioning the area where the temperature of the heating element 28 is uniform. The space SM where multiple straight sections 54 are located corresponds to an example of a first flow path. The high-temperature space SH and the low-temperature space SL correspond to an example of a second flow path. Furthermore, the heater cover 70 in Embodiment 1 corresponds to an example of a wall portion.

[0030] A flat heater cover 70 is positioned at the X-direction end of the heater support plate 60A. The heater cover 70 is configured to close the space between the heater support plate 60A and the side wall of the warm air passage TW. For convenience, the heater cover 70 located in the high-temperature space SH will also be called the right-side heater cover 70R. The heater cover 70 located in the low-temperature space SL will also be called the left-side heater cover 70L.

[0031] Each of the two heater covers 70 is provided with an outwardly curved upper fixing flange 70B at its top. Each heater cover 70 is fixed to the inner box 21 via an upper fixing flange 70B. Each heater cover 70 is also equipped with a fixing flange 76. It is fixed to the heater mounting member 60 via the fixing flange 76.

[0032] The left heater cover 70L is provided with wiring support holes 72. A hollow resin cover may be attached to cover the inner circumference of the wiring support holes 72. This can reduce wear between the various wires and the wiring support holes 72.

[0033] [1-2. Effect] Next, the operation of Embodiment 1 will be described. When the circulating fan 25 is operated, air heated by the heating heater 28 and humidified by the humidifier 26 (which can also be called regulated air or heated air) is supplied to the storage room 22 via the warm air passage TW, the connecting outlet 31F, and the outlet duct 31, and is drawn in by the circulating fan 25. This allows air to circulate between the warm air passage TW and the storage room 22, making it possible to raise the temperature and humidity inside the storage room 22. The heater mounting member 60 and the heater support plate 60A spatially partition the straight section 54 of the heating heater 28 where the temperature is particularly uniform. In addition, since the ventilation of the high-temperature space SH and the low-temperature space SL is obstructed by the heater cover 70, the warm air passage TW is formed in the part of the heating heater 28 where the temperature distribution is uniform. Furthermore, by operating the dehumidifying fan 29 and opening and closing the exhaust damper 27, cold air from the cold air passage TC is introduced into the storage room 22, enabling dehumidification of the storage room 22. The control device 100 acquires the temperature and humidity of the storage chamber 22 using a temperature sensor (not shown) and a humidity sensor (not shown) included in the sensor group 101, and controls each part so that the storage chamber 22 reaches a predetermined target temperature and humidity. As a result, the constant temperature and humidity device 10 can be operated to create an environment suitable for thawing, preheating, and fermentation in the storage chamber 22.

[0034] Furthermore, the operation of the compressor 6, condenser 7, condenser fan 7F, evaporator 8, and evaporator fan 8F, which constitute the refrigeration system, generates low-temperature, low-humidity air. This cold air circulates through the cold air passage TC around the inner box 21 in a clockwise direction as shown in Figure 2, thereby cooling the storage chamber 22. The control device 100 acquires the temperature of the storage chamber 22 using temperature sensors included in the sensor group 101, and controls the storage chamber 22 to a target temperature suitable for freezing. As a result, the constant temperature and humidity device 10 can operate in a way that creates an environment suitable for freezing in the storage chamber 22.

[0035] When the heating element 28 is activated and the circulation fan 25 is turned on, warm air flows through the warm air passage TW. In this embodiment, since a heater cover 70 is provided, it is possible to suppress airflow to the high-temperature space SH and low-temperature space SL outside the heater support plate 60A. Note that the heater cover 70 is not limited to completely blocking the airflow path, and may have a small gap. With the above configuration, all airflow does not flow into the high-temperature space SH and low-temperature space SL, but is guided and directed to the straight section 54 of the heating heater 28 located between the heater support plates 60A. As a result, the airflow can be uniformly heated by the straight section 54, and this uniformly heated airflow can be sent to the storage chamber 22.

[0036] [1-3. Effects, etc.] As described above, this embodiment includes a storage chamber 22, a circulation fan 25 for the storage chamber 22, and a heating heater 28 arranged in the airflow path inside the chamber to heat the air inside the chamber. The heating heater 38 has a plurality of straight sections 54 and a curved section 56 connecting the ends of two straight sections 54, and a heater cover 70 corresponding to a wall that guides the air inside the chamber to the straight sections 54 is provided.

[0037] With this configuration, by providing the heater cover 70, all airflow can be guided to the straight section 54 of the heating heater 28 located between the heater support plates 60A. As a result, the airflow can be uniformly heated by the straight section 54, and this uniformly heated airflow can be sent to the storage chamber 22. Therefore, uneven temperature distribution inside the chamber can be suppressed.

[0038] In this embodiment, the constant temperature and humidity device 10 further includes a heater mounting member 60 that supports the heating heater 28, and the flow path includes a space SM corresponding to the first flow path where the straight section 54 is located, and a high-temperature space SH and a low-temperature space SL corresponding to the second flow path where the curved section 56 is located, and the first flow path and the second flow path are separated by the heater mounting member 60, and the heater cover 70 corresponding to the wall section blocks the second flow path.

[0039] With this configuration, the second flow path, which is either a high-temperature space SH or a low-temperature space SL, is blocked by the heater cover 70, thus suppressing the arrival of airflow that causes temperature variations inside the chamber. As a result, the straight section 54 can uniformly heat the airflow, and this uniformly heated airflow can be sent to the storage chamber 22.

[0040] Furthermore, in this embodiment, the heating element 28 further includes a first wiring connection part 52A provided on one end and electrically connected to a power supply, and a second wiring connection part 52B provided on the other end and electrically connected to a power supply, and the first wiring connection part 52A and the second wiring connection part 52B are located near the curved portion 56.

[0041] With this configuration, by arranging the wiring connection sections 52A and 52B, which are at a lower temperature than the entire heating element 28, on the side of the curved section 56, it is possible to suppress the passage of air inside the chamber through the curved section 56 and to suppress the inflow of air around the wiring connection sections 52A and 52B into the chamber.

[0042] Furthermore, in this embodiment, the heater cover 70, which corresponds to the wall portion, is positioned downstream of the airflow path inside the chamber.

[0043] With this configuration, by positioning the heater cover 70 downstream of the airflow path inside the storage chamber, it is possible to suppress the sending of air that has exchanged heat with the high-temperature space SH and the low-temperature space SL into the storage chamber. As a result, the airflow, which has been uniformly heated by the straight section 54, can be sent to the storage chamber 22.

[0044] Furthermore, in this embodiment, the heating element 28 is positioned higher than the storage chamber 22.

[0045] With this configuration, the heating element 28 and the storage chamber 22 are close together as the airflow path inside the chamber, so the generated warm air can be efficiently sent to the storage chamber 22.

[0046] (Other embodiments) As described above, Embodiment 1 has been explained as an example of the technology disclosed in this application. However, the technology in this disclosure is not limited to this and can be applied to embodiments that have been modified, replaced, added, or omitted. Therefore, other embodiments are illustrated below.

[0047] Figure 7 is an enlarged plan view of a heating heater 28 according to another embodiment. As shown in Figure 7, the heater cover 70D may be positioned at an inclination downstream of the heater support plate 60A. Figure 8 is an enlarged plan view of a heating element 28 according to another embodiment. As shown in Figure 8, the heater cover 70U may be positioned upstream of the heater support plate 60A. In both the heater cover 70D with the configuration shown in Figure 7 and the heater cover 70U with the configuration shown in Figure 8, the same functions and effects as in Embodiment 1 can be obtained.

[0048] Regarding the formation of the heating element 28, modifications may be necessary to provide a constant temperature function at higher temperatures or to improve thermal efficiency when the device is enlarged. Therefore, modifications can be made as appropriate, for example, by bending the curved section 56 so that the straight sections 54 intersect, or by forming the heating element 28 in a spiral shape. The heating element 28 may be formed as a single piece or by welding. At that time, it is advisable to appropriately arrange the heater mounting members 60 and heater covers 70 according to the temperature distribution of the heating element 28 to separate spaces with a uniform temperature distribution. Furthermore, the heater cover 70 obstructs the airflow paths of the high-temperature space SH and the low-temperature space SL, thereby guiding more air to flow through the straight section 54. Therefore, the position of the heater cover 70 can be arbitrarily positioned along the X-axis, and it may also be positioned at an angle with respect to the Y-axis.

[0049] Furthermore, the low-temperature space SL and the high-temperature space SH may be tilted so that they gradually narrow in the negative direction of the X-axis. That is, since the second flow path is blocked upstream, the warm air passage TW may not communicate with the high-temperature space SH and the low-temperature space SL, but may only be connected to the first flow path, which is the space SM where the straight section 54 is located. In this case, the heater cover 60A, which narrows to connect only to the straight section 54, corresponds to an example of a wall section.

[0050] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0051] (Technology 1) A constant temperature and humidity apparatus comprising a storage chamber, a fan for circulating the air inside the storage chamber, and a heating heater positioned in the airflow path for heating the air inside the chamber, wherein the heating heater comprises a plurality of straight sections and a curved section connecting the ends of two of the straight sections, and is provided with a wall section for guiding the air inside the chamber to the straight sections. With this configuration, the second airflow path, which is either a high-temperature or low-temperature space, is blocked by the heater cover, thus preventing airflow that causes temperature variations from reaching the interior of the storage chamber. Therefore, the straight section allows the airflow to be heated uniformly, and this uniformly heated airflow can be sent to the storage chamber. Consequently, uneven temperature distribution within the storage chamber can be suppressed.

[0052] (Technology 2) The constant temperature and humidity apparatus according to Technical 1, further comprising a heater mounting member that supports the heating heater, wherein the flow path includes a first flow path in which the straight portion is located and a second flow path in which the curved portion is located, the first flow path and the second flow path are separated by the heater mounting member, and the wall portion obstructs the second flow path. With this configuration, the second airflow path, which is either a high-temperature or low-temperature space, is blocked by the wall, thus preventing airflow that causes temperature variations from reaching the interior of the chamber. Therefore, the straight section allows the airflow to be heated uniformly, and this uniformly heated airflow can be sent to the storage chamber.

[0053] (Technology 3) A constant temperature and humidity apparatus according to Technology 1 or 2, further comprising: electrical wiring for electrically connecting a power source and the heating heater; a first wiring connection portion provided at one connection portion between the electrical wiring and the heating heater; and a second wiring connection portion provided at the other connection portion between the electrical wiring and the heating heater, wherein the first wiring connection portion and the second wiring connection portion are located near the curved portion. With this configuration, by placing the wiring connection point, which is at a lower temperature than the overall temperature of the heating element, on the curved side, it is possible to suppress the passage of air inside the chamber through the curved section and to suppress the inflow of air around the wiring connection point into the chamber.

[0054] (Technology 4) The aforementioned wall portion is located downstream of the airflow path inside the chamber, in the constant temperature and humidity apparatus described in Technology 1. With this configuration, by positioning the heater cover downstream of the airflow path inside the storage chamber, it is possible to suppress the sending of air that has exchanged heat with high-temperature and low-temperature spaces into the storage chamber. As a result, the airflow, which is uniformly heated by the straight section, can be sent into the storage chamber.

[0055] (Technology 5) The aforementioned wall portion is positioned upstream of the airflow path inside the chamber, in the constant temperature and humidity apparatus described in Technology 1. With this configuration, by positioning the heater cover upstream of the airflow path inside the chamber, it is possible to suppress the sending of air that has exchanged heat with high-temperature and low-temperature spaces into the storage chamber. As a result, the airflow, which is uniformly heated by the straight section, can be sent into the storage chamber.

[0056] (Technology 6) The constant temperature and humidity apparatus according to any one of the arts 1 to 5, wherein the heater is positioned higher than the storage chamber. With this configuration, the heater and storage chamber are close together in terms of the airflow path inside the storage area, allowing the generated warm air to be efficiently sent into the storage chamber. [Industrial applicability]

[0057] As described above, the constant temperature and humidity apparatus of this disclosure is applicable to applications that homogenize the environment of a storage room. [Explanation of Symbols]

[0058] 1. Food (storage) 2. Insulated box 3 Main unit 4 doors 10 Constant temperature and humidity device 22 Storage Rooms 24 Fan Cover 25 Circulation fan 26 Humidifier 28 Heating heater 31. Outlet duct 32. Discharge duct plate 32A Air outlet 32B Wind direction plate 42 shelves 52A, 52B Wiring connection section 54 Straight section 56 Curved section 60 Heater mounting component 60A Heater Support Plate 61 circuit boards 70 Heater Cover 100 Control device SH High-Temperature Space SL Low temperature space TC cold air passage TW warm air passage

Claims

1. A constant temperature and humidity apparatus comprising a storage chamber, a fan for circulating the air inside the storage chamber, and a heating element positioned in the airflow path for heating the air inside the chamber, The heating element comprises a plurality of straight sections and a curved section connecting the ends of two of the straight sections. A wall is provided to guide the air inside the chamber to the straight section. The heater mounting member further supports the aforementioned heating heater, The flow path includes a first flow path in which the straight portion is located and a second flow path in which the curved portion is located. The first flow path and the second flow path are separated by the heater mounting member. The wall portion obstructs the second flow path. Constant temperature and humidity device.

2. Electrical wiring that electrically connects the power supply and the heating element, The system further comprises a first wiring connection portion provided at one connection point between the electrical wiring and the heating heater, and a second wiring connection portion provided at the other connection point between the electrical wiring and the heating heater. The first wiring connection portion and the second wiring connection portion are located near the curved portion, The constant temperature and humidity apparatus according to claim 1.

3. The heating element is positioned higher than the storage chamber. The constant temperature and humidity apparatus according to claim 1.

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