Heating apparatus

Abstract

To provide a heating apparatus that is less likely to cause temperature unevenness in warm air.SOLUTION: A heating apparatus 100 includes an air flow generating device (fan 33) and a heat source 37. The air flow generating device generates an air flow passing through an air duct 41 communicating with an outlet 32. The heat source 37 is arranged in a heat source arrangement portion 400 in the air duct 41. The heat source 37 is arranged so as to be inclined with respect to at least one of the outlet 32 and an extension direction of the air duct 41 in the heat source arrangement portion 400.SELECTED DRAWING: Figure 11

Description

[Technical field]

[0001] The present invention relates to a heating appliance. [Background technology]

[0002] As a related art, a heating device using a heat source (heating device) consisting of a ceramic heater and aluminum fins is known (see, for example, Patent Document 1). The heating device according to the related art is configured to heat air drawn into a casing by a fan with a heat source fixed to an air passage in the casing, and blow out the warm air from an outlet on the front side. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Publication number 3-124164 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configurations of the above-mentioned related technologies, for example, when increasing the volume of warm air, it is necessary to ensure a large air passage and / or outlet. In this case, if the heat source is of standard size, part of the airflow passing through the air passage will not pass through the heat source, making it easy for temperature unevenness to occur in the warm air coming out of the outlet.

[0005] An object of the present invention is to provide a heating appliance in which temperature unevenness in hot air is reduced. [Means for solving the problem]

[0006] A heating device according to one aspect of the present invention includes an airflow generating device and a heat source. The airflow generating device generates an airflow that passes through an air passage leading to an air outlet. The heat source is disposed in a heat source arrangement section in the air passage. The heat source is disposed at an angle with respect to at least one of the air outlet and an extension direction of the air passage in the heat source arrangement section. Effect of the Invention

[0007] According to the present invention, a heating appliance in which temperature unevenness in hot air is unlikely to occur can be provided. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic perspective view showing a heating device according to a first embodiment, as viewed from the right front. [Diagram 2] FIG. 2 is a schematic perspective view showing the heating device according to the first embodiment as viewed from the left rear. [Diagram 3] FIG. 3 is a schematic exploded perspective view showing the heating device according to the first embodiment, as viewed from the left rear. [Figure 4] FIG. 4 is a schematic perspective view showing the heating device according to the first embodiment, seen from the left rear with the inner cover and the like removed. [Diagram 5] FIG. 5 is a schematic block diagram showing the heating device according to the first embodiment. [Figure 6] 6 is a schematic perspective view showing the inside of the heating device according to the first embodiment, taken along the line A3-A3 in FIG. [Figure 7] 7 is a schematic rear view showing the inside of the heating device according to the first embodiment, taken along the line A3-A3 in FIG. [Figure 8] 8 is a schematic left side view showing the inside of the heating device according to the first embodiment, taken along the line A1-A1 in FIG. [Figure 9] 9 is a schematic left side view showing the inside of the heating device according to the first embodiment, taken along the line A2-A2 in FIG. [Figure 10] 10 is a schematic perspective view showing the inside of the heating device according to the first embodiment, taken along the line A4-A4 in FIG. [Figure 11] 11 is a schematic left side view showing the inside of the heating device according to the first embodiment, taken along the line A4-A4 in FIG. [Figure 12]FIG. 12 shows the inside of the heating device according to the first embodiment and is an enlarged view of the region Z1 in FIGS. [Figure 13] 13 is a schematic perspective view showing the inside of the heating device according to the first embodiment, taken along the A5-A5 line in FIG. [Figure 14] 14 is a schematic right side view showing the inside of the heating device according to the first embodiment, taken along the line A5-A5 in FIG. [Figure 15] FIG. 15 shows the inside of the heating device according to the first embodiment, and is an enlarged view of region Z1 in FIGS. [Figure 16] 16 is a schematic perspective view showing the inside of the heating device according to the first embodiment, taken along the line A6-A6 in FIG. [Figure 17] 17 is a schematic perspective view showing the inside of the heating device according to the first embodiment, taken along the line A3-A3 in FIG. [Figure 18] 18 is a schematic rear view showing the inside of the heating device according to the first embodiment, taken along the line A3-A3 in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. The following embodiment is an example of the present invention, and is not intended to limit the technical scope of the present invention.

[0010] (Embodiment 1) [1] Overall structure First, the overall configuration of a heating device 100 according to this embodiment will be described with reference to FIGS. 1 to 5. FIG.

[0011] In this embodiment, for convenience of explanation, the vertical direction when the heating device 100 is in a usable state is defined as the up-down direction D1. Furthermore, a left-right direction D2 is defined based on the direction in which the heating device 100 is viewed from the front, and a front-rear direction D3 is defined with the front side of the heating device 100 as the front and the back side as the back. However, these directions are not intended to limit the use direction of the heating device 100 (the direction during use).

[0012] 1 and 2, the heating device 100 is used while being placed on an installation surface X1, which may be, for example, a floor surface of a room in a house. The heating device 100 stands on the installation surface X1 while being placed on the installation surface X1. That is, the heating device 100 according to this embodiment is a free-standing and portable device, and the user can freely carry the heating device 100 and install it at any position on the installation surface X1.

[0013] The heating equipment 100 comprises a housing 1, an operating unit 2, an air intake 31 and an air outlet 32, a pair of fans 33, 34, a pair of filters 35, 36, an inner cover 17, a body 4, a discharge device 5, a pair of heat sources 37, 38 (see Figure 5), a temperature sensor 6 (see Figure 5), a control unit 7 (see Figure 5), and a temperature switch 8 (see Figure 5).

[0014] In this embodiment, as an example, the housing 1 has a generally cylindrical shape having a length in the up-down direction D1. The housing 1 can have various shapes, and may be, for example, a rectangular prism shape other than a cylindrical shape. The housing 1 has a bottom panel 11, a top panel 12, a front panel 13, a back panel 14, and a pair of side panels 15 and 16.

[0015] The housing 1 has a bottom panel 11 and a top panel 12 at both ends in the up-down direction D1. The bottom panel 11 is a disk-shaped panel facing downward and comes into contact with the installation surface X1 when the heating equipment 100 is installed on the installation surface X1. The top panel 12 is a disk-shaped panel facing upward.

[0016] The housing 1 has a front panel 13 and a back panel 14 at both ends in the front-rear direction D3, and has two side panels 15, 16 at both ends in the left-right direction D2. The front panel 13, the back panel 14, and the two side panels 15, 16 form the outer periphery of the housing 1, which has a substantially cylindrical shape.

[0017] The front panel 13 is a panel facing forward, and is formed in a generally rectangular shape having a length in the vertical direction D1 when viewed from the front. The back panel 14 is a panel facing backward, and is formed in a generally rectangular shape having a length in the vertical direction D1 when viewed from the rear. The side panel 15 is a panel facing left, and is formed in a generally rectangular shape having a length in the vertical direction D1 when viewed from the left side. The side panel 16 is a panel facing right, and is formed in a generally rectangular shape having a length in the vertical direction D1 when viewed from the right side.

[0018] The front panel 13, the back panel 14, and the two side panels 15, 16 are each formed in a generally arc shape with the center portion convex outward in a plan view. Therefore, the front panel 13, the back panel 14, and the two side panels 15, 16 form an outer peripheral surface that is generally circular in a plan view. However, there is a gap between the front panel 13 and each of the two side panels 15, 16, and the air blown out from the air outlet 32 ​​passes through the gap.

[0019] The operation unit 2 is disposed on the upper surface of the top panel 12 of the housing 1. The operation unit 2 includes buttons 21 to 23 which can be pressed by the user.

[0020] The operation unit 2 outputs a first command to the control unit 7 every time the button 21 is operated (pressed) by the user. When the control unit 7 receives the first command while the heating device 100 is not operating, the control unit 7 executes a startup process to start (start) the operation of the heating device 100. Furthermore, when the control unit 7 receives the first command while the heating device 100 is operating, the control unit 7 executes an operation mode switching process to alternately switch the operation mode of the heating device 100 between the air blowing mode and the hot air mode. In other words, when the button 21 is operated while the heating device 100 is operating in the air blowing mode, the operation mode of the heating device 100 is switched to the hot air mode, and when the button 21 is operated while the heating device 100 is operating in the hot air mode, the operation mode of the heating device 100 is switched to the air blowing mode.

[0021] In this embodiment, when the heating device 100 stops operating and then the button 21 is operated to restart the operation of the heating device 100, the operation mode at the time of the previous stop of operation is maintained as the operation mode of the heating device 100. For example, when the heating device 100 stops operating while operating in the fan mode and then the button 21 is operated to restart the operation of the heating device 100, the operation mode of the heating device 100 becomes the fan mode.

[0022] The operation unit 2 outputs a second command to the control unit 7 every time the button 22 is operated (pressed) by the user. When the control unit 7 receives the second command while the heating device 100 is operating, the control unit 7 stops the operation of the heating device 100 by executing a stop process.

[0023] The operation unit 2 outputs a third command to the control unit 7 every time the button 23 is operated (pushed) by the user. When the control unit 7 acquires the third command while the heating device 100 is in operation, the control unit 7 executes an air volume switching process to switch the air volume of the heating device 100 to "low", "medium", "high" and "automatic" in sequence. That is, when the button 23 is operated while the heating device 100 is in operation with the air volume of "low", the air volume of the heating device 100 is switched to "medium", and when the button 23 is operated while the heating device 100 is in operation with the air volume of "medium", the air volume of the heating device 100 is switched to "high". When the button 23 is operated while the heating device 100 is in operation with the air volume of "high", the air volume of the heating device 100 is switched to "automatic", and when the button 23 is operated while the heating device 100 is in operation with the air volume of "automatic", the air volume of the heating device 100 is switched to "low".

[0024] The air intake 31 (see FIG. 2) is a plurality of holes (openings) for taking in air into the housing 1, and is formed in the back panel 14 in this embodiment. That is, the air intake 31 is formed on the back surface of the housing 1. The air intake 31 is made up of a plurality of holes penetrating the back panel 14 in the front-rear direction D3. Each of the plurality of holes in the air intake 31 is formed in a substantially rectangular shape having a length in the up-down direction D1, and has an opening area large enough to prevent a user's finger from entering. In this embodiment, the air intake 31 is formed in substantially the entire back surface of the back panel 14 so that as much air as possible is taken in the housing 1.

[0025] The air outlet 32 ​​(see FIG. 1) is a hole (opening) for blowing air out of the housing 1, and is provided in the body 4 housed in the housing 1. In this embodiment, a pair (two) of air outlets 32 are provided to correspond to each gap between the front panel 13 and the two side panels 15, 16. One of the pair of air outlets 32 is located between the left end of the front panel 13 and the front end of the side panel 15, and the other air outlet 32 ​​is located between the right end of the front panel 13 and the front end of the side panel 16. Each of the pair of air outlets 32 has a vertically elongated opening extending along the up-down direction D1 and is open toward the front. However, the number of air outlets 32 is at least one, and is not limited to two, and may be one or three or more.

[0026] The pair of fans 33 and 34, the pair of filters 35 and 36, the inner cover 17, the body 4, the discharge device 5, and the pair of heat sources 37 and 38 are housed within the housing 1.

[0027] As shown in FIG. 3, the inner cover 17 is disposed inside the housing 1 at a position facing at least the back panel 14. FIG. 3 is an exploded perspective view of the heating device 100 with the back panel 14 removed, viewed obliquely from the left rear. In other words, the inner cover 17 is disposed in front of the back panel 14. The inner cover 17 is formed with an air vent 171 for passing air taken in from the air inlet 31 of the back panel 14. Here, the back panel 14 is removably attached to the inner cover 17. Therefore, only the back panel 14 of the housing 1 can be removed by separating it from the other panels (the bottom panel 11, the top panel 12, the front panel 13, and the pair of side panels 15, 16).

[0028] As shown in Fig. 4, the body 4 is disposed inside the housing 1 and in front of the inner cover 17. Fig. 4 is a perspective view of the heating device 100 viewed diagonally from the left rear with the back panel 14, the pair of filters 35, 36, the lid body 50, and the inner cover 17 removed. The inner cover 17 is fixed to the body 4 so as to cover the back surface of the body 4. The body 4 has air passages 41, 42 for guiding the air taken in through the air intake 31 to the air outlet 32.

[0029] In this embodiment, a pair (two) of air passages 41, 42 are provided in the body 4 to correspond to the pair of air outlets 32. The air passage 41 leading to the air outlet 32 ​​on the right side of the front panel 13 is disposed at the right end of the body 4, and the air passage 42 leading to the air outlet 32 ​​on the left side of the front panel 13 is disposed at the left end of the body 4. In other words, air taken in from the air intake 31 passes through the pair of air passages 41, 42 provided in the body 4 and is blown out of the housing 1 from the pair of air outlets 32. The air passages 41, 42 will be described in detail in the section "[2] Air passages".

[0030] As shown in FIG. 4, the pair of fans 33, 34 are provided on the back surface of the body 4. Each of the pair of fans 33, 34 is a double-suction type centrifugal fan. The pair of fans 33, 34 are arranged at both ends of the body 4 in the vertical direction D1 so as to be spaced apart from each other in the vertical direction D1. In this embodiment, the fan 33 is arranged at the lower end of the body 4, and the fan 34 is arranged at the upper end of the body 4, so that the fan 34 is arranged relatively above the fan 33. The pair of fans 33, 34 are arranged inside (in front of) the inner cover 17. Therefore, when the inner cover 17 is removed, the pair of fans 33, 34 are exposed to the rear.

[0031] The pair of fans 33, 34 generate airflow by sending air into a pair of air passages 41, 42 provided in the body 4. That is, the pair of fans 33, 34 are provided at the end (upstream end) of the pair of air passages 41, 42 opposite to the air outlet 32, and generate airflow (wind) that is blown out from the air outlet 32 ​​through the pair of air passages 41, 42. In this embodiment, the lower fan 33 is disposed at the upstream end of the air passage 41 on the right side of the body 4, and the upper fan 34 is disposed at the upstream end of the air passage 42 on the left side of the body 4. As a result, the airflow generated by the operation of the fan 33 is blown out from the air outlet 32 ​​on the right side of the front panel 13 through the air passage 41. On the other hand, the airflow generated by the operation of the fan 34 is blown out from the air outlet 32 ​​on the left side of the front panel 13 through the air passage 42.

[0032] Each of the pair of filters 35, 36 (see FIG. 3) is, for example, a dust filter or a deodorizing filter. The dust filter can collect dust, pollen, smoke, and fine particulate matter (PM2.5, for example). The deodorizing filter can remove odors from the air. In this embodiment, the pair of filters 35, 36 each have a thin, approximately rectangular parallelepiped shape in the front-rear direction D3, and are disposed adjacent to each other in the up-down direction D1. The pair of filters 35, 36 are disposed on the inside (front) of the back panel 14 and behind the inner cover 17 so as to be sandwiched between the back panel 14 and the inner cover 17. Therefore, when the back panel 14 is removed, the pair of filters 35, 36 are exposed to the rear.

[0033] The discharge device 5 has an electrode holding surface on which a first discharge electrode 51 (see FIG. 9) and a second discharge electrode 52 (see FIG. 9) are provided. The discharge device 5 has an induction electrode in addition to the first discharge electrode 51 and the second discharge electrode 52. When a voltage (high voltage) is applied between the first discharge electrode 51 and the second discharge electrode 52 and the induction electrode, the discharge device 5 generates positive ions and negative ions as discharge products by generating discharges between the first discharge electrode 51 and the second discharge electrode 52 and the induction electrode.

[0034] The discharge device 5 is attached to the body 4 at a position facing at least one of the pair of air passages 41, 42. That is, in this embodiment, the body 4 constitutes a "discharge device holding member" that holds the discharge device 5. The discharge device 5 is attached to the body 4 such that at least the first discharge electrode 51 and the second discharge electrode 52 are exposed in the air passage 41. As a result, discharge products (positive ions and negative ions) generated by the discharge device 5 are carried by the air current passing through the air passage 41 and are released to the outside of the housing 1 from the air outlet 32.

[0035] The pair of heat sources 37, 38 are each composed of a heater that generates heat when electricity is applied. When electricity is applied to each of the heat sources 37, 38, the heat sources 37, 38 convert electric energy into thermal energy and generate heat. The pair of heat sources 37, 38 are disposed in a pair of air passages 41, 42 of the body 4. As a result, when electricity is applied to the pair of heat sources 37, 38, the heat generated by the pair of heat sources 37, 38 heats the airflow passing through the pair of air passages 41, 42, and the heated air is blown out of the housing 1 through the air outlet 32. The heat sources 37, 38 will be described in detail in the section "[3] Heat Sources".

[0036] The temperature sensor 6 detects the ambient temperatures of the heat sources 37, 38, and outputs information about the ambient temperatures of the heat sources 37, 38 as the detection result. The temperature sensor 6 is electrically connected to the control unit 7, and outputs the detection result (ambient temperatures of the heat sources 37, 38) to the control unit 7. The temperature sensor 6 is an element whose electrical characteristics change according to temperature, and is, for example, an NTC (Negative Temperature Coefficient) thermistor whose resistance value changes according to temperature. The temperature sensor 6 is disposed in a position of the body 4 facing the pair of heat sources 37, 38. The temperature sensor 6 will be described in detail in the section "[4] Temperature Sensor".

[0037] As shown in FIG. 5, the control unit 7 is electrically connected to the pair of fans 33, 34, the discharge device 5, the pair of heat sources 37, 38, the operation unit 2, the temperature sensor 6, and the like. The control unit 7 mainly comprises a computer system having one or more processors such as a CPU (Central Processing Unit) and one or more memories such as a ROM (Read Only Memory) and a RAM (Random Access Memory), and executes various processes (information processing). As described above, the control unit 7 controls each part of the heating device 100 in response to the operation of the operation unit 2. Specifically, when starting the operation of the heating device 100, the control unit 7 operates the pair of fans 33, 34 and the discharge device 5 regardless of whether the operation is in the air blowing mode or the hot air mode. Furthermore, when the heating device 100 operates in the air blowing mode, the control unit 7 operates the pair of heat sources 37, 38. Furthermore, the control unit 7 controls the airflow (rotation speed) of the pair of fans 33, 34 in response to the airflow.

[0038] The control unit 7 judges whether or not an abnormality such as an excessive temperature rise (overheating) of the heating device 100 has occurred based on at least the detection result of the temperature sensor 6 (ambient temperatures of the heat sources 37, 38). Specifically, when the detection result of the temperature sensor 6 is equal to or higher than a predetermined threshold, the control unit 7 judges that an abnormality such as overheating has occurred. Examples of causes of the abnormality include an abnormal stop of the pair of fans 33, 34 and abnormal heat generation of the pair of heat sources 37, 38. When the control unit 7 judges that an abnormality such as overheating has occurred, it at least performs one of notifying the user and restricting the operation of the heating device 100 (stopping it, etc.).

[0039] The temperature switch 8 is a thermal protector that prevents an excessive temperature rise (overheating) of the heating equipment 100. When the ambient temperature near the pair of heat sources 37, 38 reaches or exceeds the activation temperature of the temperature switch 8, the temperature switch 8 activates to cut off the power supply (power source) to the heating equipment 100, thereby stopping the operation of the heating equipment 100. The temperature switch 8 is disposed in a position on the body 4 facing the pair of heat sources 37, 38.

[0040] When the temperature switch 8 is activated, the power supply including to the control unit 7 is forcibly cut off, so that all operations of the heating equipment 100 are forcibly stopped regardless of the operating state of the heating equipment 100 at that time. The temperature switch 8 is made of various thermostats such as electronic type, bimetal type (including disk type), liquid expansion type, thermal reed magnetic type, or thermal fuse. By providing such a temperature switch 8 in addition to the temperature sensor 6, it is possible to realize a fail-safe against an excessive temperature rise (overheating) of the heating equipment 100.

[0041] As described above, the heating device 100 according to the present embodiment includes a pair of heat sources 37, 38 arranged in the pair of air passages 41, 42, respectively, and a pair of fans 33, 34 that send air into the pair of air passages 41, 42, respectively. As a result, when the pair of heat sources 37, 38 and the pair of fans 33, 34 are in operation, a warm airflow (hot air) heated by the pair of heat sources 37, 38 is blown out of the housing 1 from the left and right air outlets 32 of the front panel 13 through the pair of air passages 41, 42. In other words, the heating device 100 according to the present embodiment includes at least the heat sources 37, 38, and is configured to be capable of a "heating operation" that outputs hot air. The pair of fans 33, 34 are an example of an "airflow generating device" that generates an airflow that passes through the pair of air passages 41, 42 that lead to the left and right air outlets 32.

[0042] Moreover, the heating device 100 according to this embodiment includes a discharge device 5 held in the body 4 so as to be exposed in one of the pair of air passages 41, 42, a fan 33 that sends air into the air passage 41. As a result, when the fan 33 and the discharge device 5 are in operation, the air blown out from the air outlet 32 ​​on the right side of the front panel 13 through the air passage 41 contains discharge products (positive ions and negative ions) generated by the discharge device 5.

[0043] [2] Wind path Next, a specific configuration of the air passage of the heating device 100 according to this embodiment will be described with reference to FIGS.

[0044] 6 to 9, the housing 1 and the inner cover 17 are omitted, and the heating equipment 100 is shown in a state where the body 4 is exposed. Also, Figs. 6 and 7 are schematic diagrams of the heating equipment 100 cut along the A3-A3 line cross section in Fig. 9. Fig. 8 is a schematic diagram of the heating equipment 100 cut along the A1-A1 line cross section in Fig. 7, and Fig. 9 is a schematic diagram of the heating equipment 100 cut along the A2-A2 line cross section in Fig. 7. However, hatching of the cut surfaces is omitted in these drawings.

[0045] As shown in Fig. 6 and Fig. 7, a space surrounded by walls inside the body 4 constitutes a pair of air passages 41, 42. Each of the pair of air passages 41, 42 has a length in the up-down direction D1. When the fan 33 connected to the air passage 41 is operated, air sucked in from the air intake 31 is sent from the upstream end (lower end) of the air passage 41 into the air passage 41, passes through the right end (air passage 41) of the body 4, and is blown out from the air outlet 32 ​​on the right side of the front panel 13. Similarly, when the fan 34 connected to the air passage 42 is operated, air sucked in from the air intake 31 is sent from the upstream end (upper end) of the air passage 42 into the air passage 42, passes through the left end (air passage 42) of the body 4, and is blown out from the air outlet 32 ​​on the left side of the front panel 13.

[0046] 6 and 7, one air passage 41 of the pair of air passages 41, 42 is divided into a first air passage 411 and a second air passage 412 by an inner wall 410. The inner wall 410 has a length in the longitudinal direction of the air passage 41 (the up-down direction D1), and divides the air passage 41 into the first air passage 411 and the second air passage 412 in the left-right direction D2. In this embodiment, the first air passage 411 is located to the right as viewed from the inner wall 410, and the second air passage 412 is located to the left as viewed from the inner wall 410.

[0047] Heat source 37 is disposed in first air passage 411 of one air passage 41, and heat source 38 is disposed in the other air passage 42. Therefore, when fan 33 and heat source 37 are operated, air passing through air passage 41 is heated by heat source 37, and warm air is blown out from air outlet 32 ​​on the right side of front panel 13. Similarly, when fan 34 and heat source 38 are operated, air passing through air passage 42 is heated by heat source 38, and warm air is blown out from air outlet 32 ​​on the left side of front panel 13.

[0048] Furthermore, at least the first discharge electrode 51 and the second discharge electrode 52 of the discharge device 5 are disposed in the second air passage 412 of the air passage 41 (see FIG. 9). Therefore, when the fan 33 and the discharge device 5 are operated, the discharge products (positive ions and negative ions) generated in the discharge device 5 are carried by the airflow passing through the air passage 41 and are blown out from the air outlet 32 ​​on the right side of the front panel 13.

[0049] The downstream end of each of the pair of air passages 41, 42 continues to air outlet 32 ​​that opens forward. Air outlet 32 ​​is provided with a plurality of louvers 321, as shown in Figs. 8 and 9. The plurality of louvers 321 are configured to be capable of swinging in the up-down direction D1 by rotating about a rotation axis along the left-right direction D2. Therefore, heating device 100 can adjust the direction of air (wind) blown out from air outlet 32 ​​in the up-down direction D1 by adjusting the orientation of the plurality of louvers 321.

[0050] Each of the air passages 41, 42 has a curved shape in a plane perpendicular to the left-right direction D2. That is, air is sent into each of the air passages 41, 42 from one end in the up-down direction D1 by operating the fans 33, 34, and the air is blown forward from the air outlet 32 ​​that opens forward.

[0051] For example, in air passage 41, as shown in Fig. 8 and Fig. 9, air sent from the lower end is blown out from air outlet 32 ​​that opens toward the front. In Fig. 8 and Fig. 9, the air flow is indicated by white arrows. Thus, air passage 41 has a shape that extends (upward) from the upstream end (lower end) along the vertical direction D1, with its tip curved toward the front, in a (left) side view. Similarly, air passage 42 has a shape that extends (downward) from the upstream end (upper end) along the vertical direction D1, with its tip curved toward the front, in a side view (see Fig. 14).

[0052] 8 and 9, a straightening member 413 for smoothly passing airflow is disposed at least in second air passage 412 of air passage 41. Straightening member 413 functions as a straightening plate for suppressing the generation of turbulence. In this embodiment, straightening member 413 is disposed approximately in the center of air passage 41 in the width direction, and has a shape that curves along air passage 41. Specifically, straightening member 413 is a rib-shaped member that protrudes leftward from the right side surface of second air passage 412, and divides second air passage 412 in the width direction.

[0053] [3]Heat source Next, specific configurations of heat sources 37, 38 of heating device 100 according to this embodiment will be described with reference to Fig. 10 to Fig. 15. Heat source 37 provided in right air passage 41 and heat source 38 provided in left air passage 42 have a common (identical) configuration, so the specific configurations of heat sources 37, 38 will be basically described below using heat source 37 as an example.

[0054] 10 to 15, the housing 1 and the inner cover 17 are omitted, and the heating equipment 100 is shown in a state where the body 4 is exposed. Also, Fig. 10 and Fig. 11 are schematic diagrams of the heating equipment 100 cut along the A4-A4 line cross section in Fig. 7. Fig. 13 and Fig. 14 are schematic diagrams of the heating equipment 100 cut along the A5-A5 line cross section in Fig. 7. However, in these drawings, hatching of the cut surfaces is omitted.

[0055] As shown in FIGS. 10 and 11, the heat source 37 includes a heater body 301, fins 302, and a terminal portion 303.

[0056] The heater body 301 is, for example, a ceramic heater (PTC heater) whose main component is barium titanate or the like, and generates heat when electricity is applied. In other words, the heater body 301 is a type of heater that converts electrical energy into thermal energy. In this embodiment, the heater body 301 is formed in a strip shape (a long and narrow rectangular plate shape) having a length in one direction.

[0057] The fins 302 are formed of corrugated fins, which are made by bending a metal plate having high thermal conductivity (compared to iron, etc.) such as aluminum into a corrugated shape to form a series of multiple "pleats." The fins 302 are joined in direct contact with the heater body 301 so as to be thermally coupled to the heater body 301. This allows heat generated in the heater body 301 to be transferred to the fins 302, causing the entire fins 302 to generate heat.

[0058] In this embodiment, as an example, a pair of fins 302 are attached to both sides of the heater body 301 in the thickness direction, and the pair of fins 302 are integrated with the heater body 301. Therefore, the heat source 37 has a thickness obtained by adding the thickness of the pair of fins 302 to the thickness of the heater body 301. Therefore, the heat source 37 is formed in a quadrangular prism shape (a long and narrow rectangular parallelepiped shape) having a length in one direction.

[0059] As described above, the heat source 37 has the fins 302 made of corrugated fins, and thus gaps are formed between adjacent "pleats" in the fins 302. These gaps form flow paths 304 (see FIG. 12) for passing the airflow. That is, the heat source 37 has a plurality of flow paths 304 for passing the airflow. The penetration direction of each of the plurality of flow paths 304 is the width direction of the heat source 37. In short, the heat source 37 is formed with a plurality of flow paths 304 penetrating the heat source 37 in the width direction, and the airflow can pass through the heat source 37 through these plurality of flow paths 304.

[0060] The terminal portion 303 is a component for electrically connecting the heater main body 301 to a heater driving circuit, etc. The terminal portion 303 is electrically connected to the heater main body 301. This allows electricity to be passed from the heater driving circuit to the heater main body 301 through the terminal portion 303.

[0061] In this embodiment, the terminal portion 303 is provided at one end in the longitudinal direction of the heat source 37. That is, the heater body 301 of the heat source 37 is driven by supplying power from one end in the longitudinal direction.

[0062] Heat source 37 thus configured is arranged in heat source arrangement portion 400 of air passage 41 (first air passage 411) with the thickness of heater body 301 aligned in left-right direction D2 and with the width direction of heat source 37 (penetration direction of each of multiple flow paths 304) aligned along front-rear direction D3. Heat source 37 is fixed to body 4 while arranged in heat source arrangement portion 400 of air passage 41. As a result, airflow passing through air passage 41 passes through heat source 37 arranged in air passage 41 and is blown out from air outlet 32. Then, fins 302 generate heat, so that the airflow passing through heat source 37 is warmed, and warm air is blown out from air outlet 32.

[0063] Furthermore, in this embodiment, as an example, the heat source 37 is arranged in the heat source arrangement section 400 with the terminal section 303 positioned at the lower end of the heat source 37. This makes it easier to route (arrange) wiring that electrically connects the heat source 37 (the terminal section 303) to the heater driving circuit arranged in the lower part of the housing 1.

[0064] In this embodiment, the heat source arrangement section 400 in which the heat source 37 is arranged is provided at a downstream position in the air passage 41 (i.e., near the air outlet 32). This makes it easier to prevent the airflow heated by the heat source 37 from cooling down before reaching the air outlet 32.

[0065] Incidentally, in the heating device 100 according to this embodiment, in order to increase the volume of hot air, the air passages 41, 42 and / or the air outlet 32 ​​are made large. Specifically, as shown in Fig. 11 and Fig. 14, the air outlet 32 ​​is made large in the up-down direction D1, and the width dimensions of the air passages 41, 42 are also made large in accordance with the size of the air outlet 32, so that a sufficient volume of air can be ensured even in the heating device 100 having a relatively slim cylindrical shape.

[0066] For such wide air passages 41, 42, if standard-sized heat sources 37, 38 are arranged, for example, parallel to the air outlet 32, a part of the air flow passing through the air passages 41, 42 will not pass through the heat sources 37, 38. In Fig. 11, as a comparative example, an example in which a heat source 37A of the same size as in this embodiment is arranged parallel to the air outlet 32 ​​is shown by an imaginary line (two-dot chain line). In other words, since the heat source 37A according to this comparative example is shorter than the air outlet 32 ​​in the up-down direction D1, it is not long enough (insufficient in size) to cover the entire length of the air outlet 32, and a part of the air flow passing through the air passage 41 will not pass through the heat source 37, and temperature unevenness is likely to occur in the hot air coming out of the air outlet 32.

[0067] In contrast, in the heating device 100 according to this embodiment, the heat sources 37, 38 are arranged at an angle, which makes it difficult for temperature unevenness to occur in the hot air coming out of the air outlet 32. That is, the heating device 100 according to this embodiment includes airflow generating devices (fans 33, 34) and heat sources 37, 38. The heat sources 37, 38 are arranged at an angle with respect to at least one of the air outlet 32 ​​and the extension direction of the air passages 41, 42 in the heat source arrangement section 400.

[0068] According to this configuration, for example, the heat source 37 provided in the right air passage 41 can cover substantially the entire width of the air passage 41 even if it has the same size as the heat source 37A of the comparative example, as shown in Figs. 10 and 11. Therefore, it is possible to prevent a part of the air flow passing through the air passage 41 from not passing through the heat source 37, and the temperature unevenness of the hot air discharged from the air outlet 32 ​​is unlikely to occur. Similarly, the heat source 38 provided in the left air passage 42 can cover substantially the entire width of the air passage 42 even if it has the same size as the heat source 37A of the comparative example, as shown in Figs. 13 and 14. Therefore, it is possible to prevent a part of the air flow passing through the air passage 42 from not passing through the heat source 38, and the temperature unevenness of the hot air discharged from the air outlet 32 ​​is unlikely to occur. As a result, according to this embodiment, it is possible to provide a heating device 100 in which temperature unevenness is unlikely to occur in the hot air.

[0069] In particular, in this embodiment, the heat sources 37 and 38 are inclined with respect to both the air outlet 32 ​​and the extension direction of the air passages 41 and 42 in the heat source arrangement section 400. That is, as shown in Figs. 10 and 11, the heat source 37 is inclined backward with respect to the air outlet 32 ​​so as to be farther away from the air outlet 32 ​​toward the upper end side. Furthermore, the heat source 37 is also inclined with respect to the extension direction of the air passage 41 in the heat source arrangement section 400. Here, the extension direction of the air passage 41 in the heat source arrangement section 400 is represented by the direction of the air flow passing through the heat source arrangement section 400 in the absence of the heat source 37. In this embodiment, at least in the first air passage 411 in the air passage 41, a straightening member 414 is arranged as a straightening plate for smoothly passing the air flow. The extension direction of air passage 41 in heat source mounting section 400 substantially coincides with the extension line of rectifying member 414, so heat source 37 is inclined with respect to the extension line of rectifying member 414. In Fig. 11, the air flow is indicated by hollow arrows.

[0070] Similarly, as shown in Figs. 13 and 14, the heat source 38 is inclined forward with respect to the air outlet 32 ​​so as to be farther away from the air outlet 32 ​​toward the lower end side. Furthermore, the heat source 38 is also inclined with respect to the extension direction of the air passage 42 in the heat source mounting section 400. Here, the extension direction of the air passage 42 in the heat source mounting section 400 is represented by the direction of the air flow passing through the heat source mounting section 400 in the absence of the heat source 38. In this embodiment, at least in the air passage 42, a straightening member 424 is arranged as a straightening plate for smoothly passing the air flow. Since the extension direction of the air passage 42 in the heat source mounting section 400 approximately coincides with the extension line of the straightening member 424, the heat source 38 is inclined with respect to the extension line of the straightening member 424. In Fig. 14, the air flow is indicated by an outline arrow.

[0071] In the present embodiment, as described above, air passage 41 has a shape that is curved in a plane perpendicular to left-right direction D2. Therefore, air passage 41 has curved air passage 401 as shown in FIG. 11. Heat source 37 is inclined so that the outer peripheral end (upper end in FIG. 11) of curved air passage 401 is located upstream of air passage 41 (i.e., toward fan 33) from the inner peripheral end (lower end in FIG. 11) of curved air passage 401. Air passage 42 is similar, and has curved air passage 401 as shown in FIG. 14. Heat source 38 is inclined so that the outer peripheral end (lower end in FIG. 14) of curved air passage 401 is located upstream of air passage 42 (i.e., toward fan 34) from the inner peripheral end (upper end in FIG. 14) of curved air passage 401.

[0072] According to this configuration, the inclination angle of heat sources 37, 38 relative to curved air passage 401 can be kept small, so that even in air passages 41, 42 including curved air passage 401, loss of air when passing through heat sources 37, 38 is less likely to occur.

[0073] 11 and 14, heat sources 37, 38 are disposed across a pair of side surfaces 402, 403 located on both sides of heat-source arrangement portion 400 of air passages 41, 42. Specifically, heat sources 37, 38 are provided so as to straddle side surface 402 on the outer periphery of curved air passage 401 and side surface 403 on the inner periphery of curved air passage 401. As a result, air passages 41, 42 are substantially entirely blocked by heat sources 37, 38, and temperature unevenness of the hot air discharged from air outlet 32 ​​can be suppressed.

[0074] Here, the overall length of the heat sources 37, 38 in the longitudinal direction is smaller than the dimension in the longitudinal direction (vertical direction D1) of the air outlet 32. Even with the heat sources 37, 38 of such a size, it is possible to heat the entire airflow (hot air) coming out of the air outlet 32, and it is possible to suppress unevenness in the temperature of the hot air coming out of the air outlet 32. Furthermore, by using the heat sources 37, 38 of a standard size, it becomes easier to prevent the heat sources 37, 38 from generating excessive heat.

[0075] Furthermore, in this embodiment, the heat sources 37, 38 have a plurality of flow paths 304 that pass airflow in a direction (width direction) perpendicular to the longitudinal direction. That is, the penetration direction of each of the plurality of flow paths 304 is perpendicular to the longitudinal direction of the heat sources 37, 38. Since such heat sources 37, 38 are arranged at an angle, the airflow passing through the heat sources 37, 38 is more likely to come into contact with the side surfaces of the plurality of flow paths 304 and is more likely to be heated when passing through the heat sources 37, 38.

[0076] 12 and 15, the heating device 100 according to this embodiment further includes a cooling air passage 404 that branches off from the air passages 41 and 42 and passes airflow to the terminal parts 303 of the heat sources 37 and 38. In FIG. 12, an enlarged view of the area Z1 in FIG. 10 is shown in the upper part, and an enlarged view of the area Z1 in FIG. 11 is shown in the lower part. In FIG. 15, an enlarged view of the area Z1 in FIG. 13 is shown in the upper part, and an enlarged view of the area Z1 in FIG. 14 is shown in the lower part. Furthermore, in FIG. 12 and FIG. 15, the air flow is indicated by outline arrows.

[0077] That is, a cooling air passage 404 for passing air current is formed around the terminal portion 303 provided at the lower end of the heat sources 37, 38. The cooling air passage 404 branches off from the main flow of the air passages 41, 42, passes around the terminal portion 303, and leads to the air outlet 32. In this embodiment, such a cooling air passage 404 is configured by a through hole formed in a holding portion 405 of the terminal portion 303 in the body 4.

[0078] According to this configuration, even when heat sources 37, 38 are in operation, terminal portion 303 can be actively cooled by airflow. Since terminal portion 303 is welded or brazed, it is preferable to avoid an excessive temperature rise, and by adopting such a cooling structure for terminal portion 303, it is possible to prevent an excessive temperature rise in terminal portion 303. Moreover, since cooling air passage 404 is formed by the through hole formed in holding portion 405 of body 4, it is possible to form cooling air passage 404 while separating terminal portion 303 itself from the external space by holding portion 405.

[0079] In addition, the airflow that has passed through cooling airflow path 404 merges with the airflow that has passed through airflow paths 41 and 42. That is, because cooling airflow path 404 is connected to air outlet 32, the airflow that branches off from the main airflow of airflow paths 41 and 42 and flows into cooling airflow path 404 also eventually merges with the airflow that has passed through airflow paths 41 and 42. Therefore, the airflow that has passed through cooling airflow path 404 mixes with the hot air that has passed through airflow paths 41 and 42, and temperature unevenness of the hot air coming out of air outlet 32 ​​can be suppressed.

[0080] Furthermore, in this embodiment, in heat source 37 provided in right air passage 41, terminal portion 303 is located on the inner periphery side (side surface 403 side) of curved air passage 401. That is, terminal portion 303 is provided at the end of heat source 37 closer to fan 33. In contrast, in heat source 38 provided in left air passage 42, terminal portion 303 is located on the outer periphery side (side surface 402 side) of curved air passage 401. That is, terminal portion 303 is provided at the end of heat source 38 farther from fan 34.

[0081] That is, right-side air passage 41 has curved air passage 401, and cooling air passage 404 is disposed on the inner periphery side of curved air passage 401. Since the air flow speed is slower on the inner periphery side of curved air passage 401 than on the outer periphery side, for example, even if the air volume of heating device 100 is "high", the air flow passing through cooling air passage 404 is less likely to cool the warm air and is less likely to impede the heating effect.

[0082] Furthermore, left air passage 42 has curved air passage 401, and cooling air passage 404 is disposed on the outer periphery of curved air passage 401. Since the air flow speed is faster on the outer periphery of curved air passage 401 than on the inner periphery, for example, even if the air volume of heating device 100 is set to "low," the air flow passing through cooling air passage 404 can be expected to provide a sufficient cooling effect on terminal portion 303.

[0083] [4] Temperature sensor Next, a specific configuration of the temperature sensor 6 of the heating device 100 according to this embodiment will be described with reference to Fig. 11, Fig. 14, and Fig. 16 to Fig. 18. The temperature sensor 6 provided for the right-side heat source 37 and the temperature sensor 6 provided for the left-side heat source 38 have a common (bilaterally symmetrical) configuration, so below, the specific configuration of the temperature sensor 6 will basically be described using the temperature sensor 6 provided for the right-side heat source 37 as an example.

[0084] 16 to 18, the housing 1 and the inner cover 17 are omitted, and the heating device 100 is shown in a state where the body 4 is exposed. Also, FIG. 16 is a schematic diagram of the heating device 100 cut away along the A6-A6 line cross section in FIG. 9. In FIG. 16, the drawing on the left side shows a state where the heat source 37 is omitted, and the drawing on the right side shows a state where the heat source 37 is arranged. FIGS. 17 and 18 are schematic diagrams of the heating device 100 cut away along the A3-A3 line cross section in FIG. 9. However, hatching of the cutaway surface is omitted in these drawings.

[0085] In this embodiment, the temperature sensor 6 is a surface-mounted chip thermistor. The temperature sensor 6 is mounted on the surface of a sensor substrate 61 (see FIG. 17). As described above, the temperature sensor 6 is disposed in a position facing the heat source 37 in the body 4 in order to detect the temperature around the heat source 37. However, for example, if the temperature sensor 6 is disposed inside the air passage 41, there is a possibility that the temperature detected by the temperature sensor 6 will exceed the threshold value due to exposure to hot air even under normal circumstances. Therefore, the temperature sensor 6 is disposed outside the air passage 41.

[0086] However, in order for the temperature sensor 6 arranged outside the air passage 41 to accurately detect the temperature around the heat source 37, the problem is how to guide the heat around the heat source 37 to the temperature sensor 6. In other words, if the temperature sensor 6 is simply arranged near the heat source 37, depending on the surrounding environment such as the air temperature, for example, there may be a time lag before the temperature of the heat source 37 is reflected in the temperature sensor 6, and the reliability of the detection result of the temperature sensor 6 may decrease. In contrast, the heating device 100 according to this embodiment has a configuration described below, thereby realizing a heating device 100 in which the reliability of the detection result of the temperature sensor 6 is less likely to decrease.

[0087] That is, the heating device 100 according to this embodiment includes an airflow generating device (fans 33, 34), heat sources 37, 38, and a temperature sensor 6. The airflow generating device (fans 33, 34) generates an airflow that passes through air passages 41, 42 leading to the air outlet 32. The heat sources 37, 38 are arranged in a heat-source arrangement section 400 in the air passages 41, 42. Here, the heating device 100 further includes an enclosing member 62, as shown in Figs. 16 to 18. The enclosing member 62 is arranged around the temperature sensor 6 so as to surround a communication passage 63 that connects the air passages 41, 42 and the temperature sensor 6.

[0088] In this disclosure, "surrounding" means surrounding (side by side with) the object (here, the communication passage 63) and includes not only surrounding the entire circumference of the object so as to completely enclose it, but also loosely surrounding the object with a plurality of objects side by side with gaps. In other words, the surrounding member 62 may be formed, for example, in a cylindrical shape to completely surround the entire circumference of the communication passage 63, or may surround the temperature sensor 6 with a plurality of columnar (including pin-shaped) parts erected around the communication passage 63.

[0089] According to this configuration, the heat around the heat source 37 in the air passage 41 is taken in by the communication passage 63 surrounded by the enclosing member 62, and is easily guided to the temperature sensor 6. That is, for example, when the temperature around the heat source 37 rises due to an abnormal stop of the fan 33 or abnormal heat generation of the heat source 37, the hot air around the heat source 37 flows into the communication passage 63 surrounded by the enclosing member 62 and is guided through the communication passage 63 to the temperature sensor 6. As a result, compared to a case where the enclosing member 62 is not provided, a time lag is less likely to occur until the temperature of the heat source 37 is reflected in the temperature sensor 6, and the reliability of the detection result of the temperature sensor 6 is less likely to decrease.

[0090] In this embodiment, as an example, the temperature sensor 6 is disposed outside the housing 1 in the left-right direction D2 when viewed from the air passage 41. That is, for the right air passage 41, the temperature sensor 6 is disposed outside (to the right) of the right side wall 600 that constitutes the right side surface of the air passage 41. The side wall 600 has a communication hole 601 formed at a position corresponding to the temperature sensor 6, which allows the temperature sensor 6 to face the inside of the air passage 41. The communication hole 601 constitutes a part of the communication passage 63. Therefore, the surrounding member 62 is formed to surround the communication hole 601.

[0091] Specifically, the surrounding member 62 is configured in a cylindrical shape surrounding the entire periphery of the communication passage 63, as shown in Fig. 16. In other words, the communication passage 63 including the communication hole 601 is formed inside the cylindrical surrounding member 62. Such surrounding member 62 is formed integrally with the side wall 600 so as to surround the periphery of the communication hole 601. Particularly in this embodiment, as shown in Figs. 17 and 18, the surrounding member 62 protrudes from both sides of the side wall 600 in the thickness direction (left-right direction D2).

[0092] 18, the amount of protrusion of the surrounding member 62 from the surface (left surface) of the side wall 600 on the air passage 41 side is set so as to ensure a predetermined gap between the tip surface (left end surface) of the surrounding member 62 and the heat source 37 in the left-right direction D2. This prevents the surrounding member 62 from directly contacting the heat source 37, and prevents the surrounding member 62 from being directly heated by the heat source 37.

[0093] 18, the amount of protrusion of the surrounding member 62 from the surface (right surface) of the side wall 600 opposite to the air passage 41 is set so as to ensure a predetermined gap between the tip surface (right end surface) of the surrounding member 62 and the sensor board 61 in the left-right direction D2. That is, in this embodiment, a gap is formed between the sensor board 61 on which the temperature sensor 6 is mounted and the surrounding member 62. This makes it possible to prevent the sensor board 61 from being directly heated by the surrounding member 62.

[0094] Specifically, one or more legs 621 are formed on the surface of the surrounding member 62 facing the sensor board 61, and the legs 621 function as spacers to ensure a predetermined gap between the tip surface (right end surface) of the surrounding member 62 and the sensor board 61. In this embodiment, as an example, four legs 621 are provided at 90 degree intervals. As a result, gaps are formed between adjacent legs 621.

[0095] That is, legs 621 for ensuring a gap protrude from the surface of surrounding member 62 facing sensor board 61. By providing such legs 621, it becomes easier to ensure a predetermined gap between surrounding member 62 and sensor board 61.

[0096] Here, the gap between the tip surface (right end surface) of the enclosing member 62 and the sensor board 61 is connected to the gap between the front panel 13 and the side panel 16. This allows the communication path 63 to be connected to the outside of the housing 1 through these gaps. This prevents the hot air that has flowed into the communication path 63 from stagnating for a long period of time around the temperature sensor 6, making it easier for the temperature sensor 6 to detect the ambient temperature of the heat source 37 in real time.

[0097] In this embodiment, the periphery of communication hole 601 in sidewall 600 of air passage 41 constitutes protruding portion 602 that protrudes toward air passage 41 (left side). Protruding portion 602 is formed larger than sensor board 61, and at least a part of sensor board 61 is accommodated in a recess formed by protruding portion 602 on the surface of sidewall 600 opposite air passage 41 (right side surface).

[0098] That is, communication passage 63 includes communication hole 601 formed in side wall 600 of air passage 41. Protruding portion 602 that protrudes toward inside air passage 41 is provided around communication hole 601 in side wall 600. This makes it easier to bring temperature sensor 6 closer to heat source 37.

[0099] 17 and 18, the temperature switch 8 is disposed on the opposite side (left side) of the temperature sensor 6 as viewed from the heat source 37 in the left-right direction D2, facing the heat source 37. This allows the temperature switch 8 to be operated in response to the temperature of the heat source 37, separately from the temperature sensor 6.

[0100] 11 and 14, at least a part of the surrounding member 62 faces the heat sources 37, 38. That is, the surrounding member 62 is disposed at a position where at least a part of the surrounding member 62 abuts against the heat sources 37, 38 in the left-right direction D2. This makes it easier for the surrounding member 62 to efficiently take in the heat when the temperature in the vicinity of the heat sources 37, 38 particularly rises due to poor air intake from the air intake port 31, including clogging of the filters 35, 36, or due to an abnormal stop of the fans 33, 34. Therefore, the reliability of the detection result of the temperature sensor 6 is less likely to decrease with respect to this type of abnormality.

[0101] 11 and 14, at least a part of the surrounding member 62 faces a space downstream of the airflow (air outlet 32 ​​side) of the heat sources 37, 38 in the air passages 41, 42. In other words, the surrounding member 62 is disposed so that at least a part of the surrounding member 62 protrudes downstream of the airflow (air outlet 32 ​​side) of the heat sources 37, 38. This makes it easier for the surrounding member 62 to efficiently take in the heat when the temperature downstream of the heat sources 37, 38 rises due to poor exhaust from the air outlet 32, including clogging of the air outlet 32. Therefore, the reliability of the detection result of the temperature sensor 6 is less likely to decrease with respect to this type of abnormality.

[0102] Further, in this embodiment, as shown in Fig. 11 and Fig. 14, the surrounding member 62 is disposed across the heat sources 37, 38 and the space downstream of the heat sources 37, 38 in the airflow. That is, at least a part of the surrounding member 62 faces both the space downstream of the heat sources 37, 38 in the airflow (air outlet 32 ​​side) in the air passages 41, 42 and the heat sources 37, 38. This makes it easier for the surrounding member 62 to efficiently take in heat in both cases where the temperature in the vicinity of the heat sources 37, 38 rises particularly due to poor intake from the air inlet 31 or abnormal stop of the fans 33, 34, and where the temperature downstream of the heat sources 37, 38 rises particularly due to poor exhaust from the air outlet 32. Therefore, it becomes possible to detect a plurality of types of abnormalities in which the temperature rises at different locations with one temperature sensor 6.

[0103] [4] Variations Below, we will list some modified examples of the first embodiment. The modified examples explained below can be applied in appropriate combinations.

[0104] The heating device 100 does not necessarily have to include the discharge device 5. Furthermore, the heat sources 37, 38 are not limited to heaters, and may be, for example, a heat pump or a burner, or a combination of these.

[0105] Furthermore, it is not essential that the discharge device 5 generates positive and negative ions, and for example, discharge products other than ions may be generated by the discharge of the first discharge electrode 51 and the second discharge electrode 52. Furthermore, it is not essential that the discharge device 5 has an induction electrode.

[0106] Furthermore, the airflow generating device is not limited to fans 33, 34 that generate airflow by sending air into air passages 41, 42. For example, a fan serving as an airflow generating device may be provided at an end (downstream end) of air passages 41, 42 on the air outlet 32 ​​side, and may exhaust air from air passages 41, 42 to generate an airflow (wind) that passes through air passages 41, 42 and is blown out from air outlet 32.

[0107] Furthermore, the heat sources 37, 38 only need to be inclined with respect to at least one of the air outlet 32 ​​and the extension direction of the air passages 41, 42 in the heat source arrangement section 400, and may, for example, be inclined with respect to only the air outlet 32 ​​or only the extension direction of the air passages 41, 42 in the heat source arrangement section 400.

[0108] Furthermore, the shape of the surrounding member 62 is not limited to a cylindrical shape, and may be, for example, a square tube shape, or a tube shape having a notch in a circumferential direction. Furthermore, the surrounding member 62 may be a separate member from the side wall 600. The end surface of the surrounding member 62 facing the air passages 41, 42 is not limited to a flat surface. For example, the end surface of the surrounding member 62 facing the air passages 41, 42 may be inclined with respect to the extension direction of the communication passage 63. Furthermore, the surrounding member 62 may include a plurality of columnar (including pin-shaped) parts, and the communication passage 63 may be surrounded by these plurality of columnar parts.

[0109] Furthermore, the heating device 100 does not necessarily have to adopt both the configuration related to the inclined arrangement of the heat sources 37, 38 and the configuration related to the surrounding member 62, and may adopt only one of them. For example, when the heat sources 37, 38 are inclined, the surrounding member 62 may be omitted.

[0110] [Appendix to the invention] The following will provide an overview of the invention extracted from the above-described embodiment. Note that the configurations and processing functions described in the following supplementary notes can be selected and combined as desired.

[0111] <Appendix 1> an airflow generating device that generates an airflow passing through an air passage leading to the air outlet; a heat source disposed in a heat source arrangement portion in the air passage; The heat source is disposed at an angle with respect to at least one of the air outlet and an extension direction of the air passage in the heat source arrangement portion. Heating equipment.

[0112] <Appendix 2> The heat source is disposed across a pair of side surfaces located on both sides of the heat source arrangement portion of the air passage. 2. Heating equipment as described in Appendix 1.

[0113] <Appendix 3> The total length of the heat source in the longitudinal direction is smaller than the dimension of the air outlet in the longitudinal direction. 2. A heating appliance as described in appendix 1 or 2.

[0114] <Appendix 4> The air passage has a curved air passage, The heat source is inclined such that an end portion on an outer periphery side of the curved air passage is located upstream of the air passage with respect to an end portion on an inner periphery side of the curved air passage. 4. The heating apparatus according to claim 1, wherein the heating apparatus is a heater.

[0115] <Appendix 5> The heat source has a plurality of flow paths through which air flows in a direction perpendicular to the longitudinal direction. 5. The heating apparatus according to claim 1,

[0116] <Appendix 6> A cooling air passage branching from the air passage and passing an air flow through a terminal portion of the heat source is further provided. 6. A heating apparatus according to any one of claims 1 to 5.

[0117] <Appendix 7> The airflow passing through the cooling air passage merges with the airflow passing through the air passage. Heating equipment as described in Appendix 6.

[0118] <Appendix 8> The air passage has a curved air passage, The cooling air passage is disposed on the inner peripheral side of the curved air passage. 8. A heating appliance as described in appendix 6 or 7.

[0119] <Appendix 9> The air passage has a curved air passage, The cooling air passage is disposed on the outer circumferential side of the curved air passage. 8. A heating appliance as described in appendix 6 or 7. [Explanation of symbols]

[0120] 32 Air outlet 33,34 Fan (airflow generating device) 37,38 Heat source 303 Terminal section 304 Flow Path 41,42 Wind path 100 Heating equipment 400 Heat source arrangement section 401 Curved wind path 402,403 Side 404 Cooling air passage

Claims

1. an airflow generating device that generates an airflow passing through an air passage leading to the air outlet; a heat source disposed in a heat source arrangement portion in the air passage; The heat source is disposed at an angle with respect to at least one of the air outlet and an extension direction of the air passage in the heat source arrangement portion. Heating equipment.

2. The heat source is disposed across a pair of side surfaces located on both sides of the heat source arrangement portion of the air passage. The heating appliance according to claim 1.

3. The total length of the heat source in the longitudinal direction is smaller than the dimension of the air outlet in the longitudinal direction. The heating appliance according to claim 1 or 2.

4. The air passage has a curved air passage, The heat source is inclined such that an end portion on an outer periphery side of the curved air passage is located upstream of the air passage with respect to an end portion on an inner periphery side of the curved air passage. The heating appliance according to claim 1 or 2.

5. The heat source has a plurality of flow paths through which air flows in a direction perpendicular to the longitudinal direction. The heating appliance according to claim 1 or 2.

6. A cooling air passage branching from the air passage and passing an air flow through a terminal portion of the heat source is further provided. The heating appliance according to claim 1 or 2.

7. The airflow passing through the cooling air passage merges with the airflow passing through the air passage. The heating appliance according to claim 6.

8. The air passage has a curved air passage, The cooling air passage is disposed on the inner peripheral side of the curved air passage. The heating appliance according to claim 6.

9. The air passage has a curved air passage, The cooling air passage is disposed on the outer circumferential side of the curved air passage. The heating appliance according to claim 6.

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