JP6299758B2 - Heating device and sanitary washing device and equipment provided with the same - Google Patents

Description

  The present invention relates to a heating technique, and more particularly, to a heating device and a sanitary washing device and equipment including the same.

  Conventionally, in a so-called instantaneous heat exchanger provided in a sanitary washing device or the like, when there is uneven heating in the hot water sent from the heat exchanger, the temperature of the water ejected from the washing nozzle is stabilized and ejected. . As a result, the user can perform cleaning comfortably and safely. Specifically, a temperature stabilizing part is provided in order to absorb temperature unevenness between the delivery part of the heat exchanger and the washing nozzle. And the sanitary washing apparatus comprised so that the washing water with an uneven temperature might not eject from a washing nozzle is disclosed (for example, refer patent documents 1 and patent documents 2).

  In addition, a sanitary washing device having a structure in which the water inlet portion of the temperature stabilization portion is formed in an arc shape to promote the mixed flow of hot water in the temperature stabilization portion and the temperature of the warm water delivered from the temperature stabilization portion is made uniform quickly is disclosed. (For example, refer to Patent Document 3).

  The temperature stabilization part disclosed by each said patent document stores and mixes the water heated with the heating apparatus temporarily inside, and makes the water temperature uniform. At this time, the temperature stabilizing part needs a volume (volume) for securing a certain amount of hot water. Therefore, the conventional sanitary washing apparatus generally employs a structure in which the temperature stabilizing unit and the heating apparatus are separately installed.

  At present, the temperature stabilization part of the sanitary washing apparatus is indispensable for performing warm water washing comfortably and safely.

  However, the structure in which the temperature stabilizing unit and the heating device are separately provided has a problem that the space occupied by the entire water heater for the sanitary washing device becomes large, which makes use and installation inconvenient.

  Therefore, in order to solve the above-described problem, a configuration in which the temperature stabilization unit and the equipment of the heating device are integrated and miniaturized can be considered. However, when the temperature stabilizing unit and the heating device are integrated, it is necessary to secure a space for arranging the temperature stabilizing unit occupying a considerable volume in the heating device. In other words, when integrated with a conventional heating device, a temperature stabilizing unit that secures a certain volume to eliminate temperature unevenness, even if the relationship between the heating element and the flow path is optimally arranged for efficient heat exchange The configuration of is required. Therefore, space saving cannot be achieved and the size cannot be reduced. Therefore, the problem of downsizing the water heater while ensuring a space for arranging the temperature stabilizing portion has not yet been solved.

Japanese Patent No. 3714060 Japanese Patent Laid-Open No. 2000-1896 JP 2009-257992 A

  The present invention provides a heating device that can stabilize the tapping temperature and can be miniaturized, and a sanitary washing device and equipment including the heating device.

  That is, the heating device according to the present invention includes a housing having an inlet through which a fluid flows in and an outlet through which the fluid flows, a heat exchange channel that is installed in the housing and communicates with the inlet, and heats the fluid in the heat exchange channel. And a heater. Furthermore, a temperature buffer unit that is installed in the housing and communicates with the outlet, and a through-hole that is installed between the heat exchange channel and the temperature buffer unit and that communicates the heat exchange channel and the temperature buffer unit. Is provided. The heat exchange channel guides the fluid flowing from the inlet, causes the heated fluid to flow from the through hole to the temperature buffer, and the temperature buffer guides the fluid flowing from the through hole to the outlet. Prepare.

  According to this configuration, the temperature buffer unit is installed in the housing, and the heat exchange channel and the temperature buffer unit are communicated with each other through the through hole. Thereby, the temperature of the warm water flowing in from the heat exchange flow path can be made uniform at the temperature buffer. In addition, the space occupied by the temperature buffer can be reduced. As a result, it is possible to realize a heating device that equalizes the temperature of the hot water and is miniaturized by integrating the heat exchange flow path and the temperature buffer.

FIG. 1 is a perspective view of a heating apparatus according to Embodiment 1 of the present invention. FIG. 2A is a front view of the heating apparatus according to the embodiment. FIG. 2B is a top view of the heating device. FIG. 2C is a bottom view of the heating device. 2D is a cross-sectional view taken along line 2D-2D of FIG. 2C. 2E is a cross-sectional view taken along line 2E-2E in FIG. 2D. 2F is a cross-sectional view taken along line 2F-2F in FIG. 2D. FIG. 3 is a schematic view of the flow direction of water in the heating apparatus having a plurality of through holes according to the embodiment. FIG. 4 is a schematic view of the flow direction of water in the temperature buffer portion having a plurality of mixing ribs according to the embodiment. FIG. 5 is a schematic view of the entire flow direction of water in the temperature buffer portion having the heat exchange flow path and the plurality of mixing ribs according to the embodiment. FIG. 6A is a schematic view in which a heater according to a modification of the embodiment is arranged on the inner side of one side of the housing. FIG. 6B is a schematic view in which the heater is disposed on the outer side of one side of the housing. FIG. 6C is a schematic view in which the heater is disposed laterally at the bottom of the heat exchange channel. FIG. 7A is a schematic view of a heating apparatus in which the flow direction flowing in from the inlet and the direction flowing out from the outlet according to the modification of the embodiment are the same. FIG. 7B is a schematic view of a heating apparatus in which the flow direction flowing in from the inlet and the direction flowing out from the outlet intersect according to the modification. FIG. 8 is a perspective view of a sanitary washing device to which a heating device according to Embodiment 2 of the present invention is attached.

  Embodiments of the present invention will be described below with reference to the drawings. The present embodiment is an exemplification, and the present invention is not limited thereby.

(Embodiment 1)
Below, the structure of the heating apparatus in Embodiment 1 of this invention is demonstrated using FIGS. 1-2F. In the heating device of the present embodiment, water is described as an example of the fluid flowing through the heating device, but it is needless to say that the present invention is not limited to this. Other liquids or gases other than water, such as water with added chemicals or detergents, or functional water, may be used.

  FIG. 1 is a perspective view of a heating apparatus according to Embodiment 1 of the present invention. FIG. 2A is a front view of the heating apparatus according to the embodiment. FIG. 2B is a top view of the heating device. FIG. 2C is a bottom view of the heating device. 2D is a cross-sectional view taken along line 2D-2D of FIG. 2C. 2E is a cross-sectional view taken along line 2E-2E in FIG. 2D. 2F is a cross-sectional view taken along line 2F-2F in FIG. 2D.

  As shown in FIGS. 1 to 2F, the heating device 1 of the present embodiment includes at least a housing 13, a mixing rib 22 disposed in the housing 13, a heat exchange channel 24, a heater 23, and a temperature buffer. The unit 25 is configured. A through hole 21 is provided between the heat exchange flow path 24 and the temperature buffer unit 25, and water warmed by the heater 23 flows through the temperature buffer unit 25. As shown in FIG. 1, the heating device 1 is formed, for example, in a rectangular parallelepiped shape, and is installed so that both side surfaces on the long side are in the vertical direction.

  The housing 13 includes an inlet 11 through which water flows into the lower side and an outlet 12 through which water flows out into the upper side. In the present embodiment, an example in which the inlet 11 and the outlet 12 are provided on the same side surface in the left-right direction of the housing 13 is shown.

  The heat exchange channel 24 is formed in the housing 13 and communicates with the inlet 11. The heater 23 is, for example, a flat plate heater made of ceramic or the like. As shown in FIGS. 2E and 2F, the heater 23 is made to prevent the entire surface from coming into contact with both wall surfaces 26a and 26b of the heat exchange channel 24. It is arranged in the heat exchange flow path 24 in a state supported by the section. And the heater 23 heats the water which flows through the heat exchange flow path 24 by using both surfaces of the heater 23 as heating surfaces. The water flowing in the heat exchange flow path 24 rises on both sides to the upper end of the heater 23 and merges, and then passes through the through hole 21 facing the end face of the heater 23 and flows into the temperature buffer 25. The temperature buffer unit 25 is installed above the heat exchange flow path 24 in the housing 13 and communicates with the outlet 12. Further, as described above, the through-hole 21 is provided between the heat exchange channel 24 and the temperature buffer unit 25, and allows the heat exchange channel 24 and the temperature buffer unit 25 to communicate with each other.

  Moreover, as shown in FIG. 2D, the mixing rib 22 is provided in the temperature buffer 25 so as to narrow the flow path of the hot water that flows in through the through hole 21. In the present embodiment, the number of the mixing ribs 22 is the same as the number of the through holes 21 (five in FIG. 2D) and is provided closer to the outlet 12 than the corresponding corresponding through holes 21. Furthermore, the mixing rib 22 may have a shape in which, for example, the cross-sectional width increases toward the outlet 12 side (not shown). Thus, the inner wall of the temperature buffer 25 and the mixing rib 22 increase toward the outlet 12 side. Since the interval of is narrowed, the flow of water is further obstructed. As a result, water with uneven temperature can be sufficiently mixed in the temperature buffer unit 25. That is, when hot water flows through a narrow channel formed in the temperature buffer 25 by the mixing rib 22 and a wide channel other than the narrow channel, the hot water can be mixed and temperature unevenness can be made uniform. Specific operation will be described later.

  The heat exchange channel 24 guides the water flowing in from the inlet 11, and allows the water heated by the heater 23 to flow from the through hole 21 to the temperature buffer unit 25. Further, the temperature buffer 25 guides the heated water flowing in from the through hole 21 to the outlet 12 while being mixed by the mixing rib 22 and supplies the water to a nozzle such as a sanitary washing device. In the present embodiment, the space formed by the housing 13 is used as the heat exchange flow path 24, but is not limited thereto. For example, the heat exchange flow path 24 may be configured as one member and installed independently in the housing 13. Thereby, the width | variety of the heat exchange flow path 24, ie, the clearance gap size with the heater 23, can be formed more accurately.

  As described above, the heating device of the present embodiment is configured.

  Below, in this Embodiment, the operating principle of the heating apparatus in the case where there are a plurality of, for example, four through holes will be described below with reference to FIG.

  FIG. 3 is a schematic view of the flow direction of water in the heating apparatus having a plurality of through holes in the same embodiment.

Heating apparatus shown in FIG. 3, the water flows in the direction indicated by the arrow F _1. At this time, water flows into the temperature buffer 25 from the region 24c near the through hole 21a and the region 24d near the through hole 21d. In this case, the number of the through holes 21 is four, and the area of the through holes 21 is also a very small hole having a diameter of 2.4 mm, for example. Therefore, pressure loss occurs when water flows from the through holes 21a to 21d. , Since water flows along the flow direction indicated by the arrow F ₁ in FIG. 3, the pressure loss is the largest at the portion of the through hole 21a, the smallest at the portion of the through-hole 21d. That is, the pressure loss has a relationship of through hole 21a> through hole 21b> through hole 21c> through hole 21d. Thereby, the water of the area | region 24e becomes easy to flow in into the temperature buffer part 25 from the through-hole 21d with comparatively small pressure loss. Therefore, the formation of the staying portion in the region 24e can be suppressed. Moreover, it is suppressed that the water of the area | region 24e is heated for a long time. Therefore, it is possible to prevent the water temperature in the region 24e from becoming too high. In other words, if the temperature becomes too high, scale is generated in the heat exchange flow path 24 due to a local temperature rise, and scales adhere to the flow path and the flow path becomes narrower or adheres to the heater surface and heats up. Adverse effects on the surface. Therefore, these adverse effects can be prevented beforehand by efficiently flowing into the temperature buffering section 25 without generating a staying section on the heating surface.

  And the water which flows into the through-hole 21a-through-hole 21d from the heat exchange flow path 24 is mixed in the temperature buffer part 25. FIG. Therefore, the temperature can be balanced (homogenized) before flowing out from the outlet 12 of the temperature buffer 25. As a result, water having a uniform temperature can be discharged from the outlet 12.

  Further, the operation principle of the heating device provided with four mixing ribs 22 corresponding to the four through holes in FIG. 3 will be described below with reference to FIG.

  FIG. 4 is a schematic view of the flow direction of water in the temperature buffer unit having a plurality of mixing ribs in the same embodiment. 4 is an enlarged view of the vicinity of the temperature buffer portion 25 having the mixing ribs 22a to 22d having a rectangular cross section for easy understanding.

As shown in FIG. 4, in the temperature buffer section 25, when installing the four mixing ribs 22a~ mixing ribs 22 d, as shown by the arrow _{F 2,} the mixing ribs 22a~ mixing ribs 22 d, the water flow towards the outlet 12 Inhibited and mixed flow occurs. Thus, the water is mixed while flowing to the outlet 12. As a result, the temperature of the water flowing out from the outlet 12 becomes more uniform. That is, the temperature of water can be made more uniform in the temperature buffer 25 by providing the plurality of mixing ribs 22a to 22d corresponding to the plurality of through holes 21a to 21d.

  Next, the operation principle of the heating device having the four mixing ribs shown in FIG. 4 will be described in more detail with reference to FIG.

  FIG. 5 is a schematic view of the entire flow direction of water in the temperature buffer portion having the heat exchange flow path and the plurality of mixing ribs in the embodiment. FIG. 5 shows the case where the number of through-holes and mixing ribs is the same, and four. At this time, the mixing rib 22a is provided on the outlet 12 side of the through hole 21a. Similarly, the mixing ribs 22b, 22c, and 22d are provided on the outlet 12 side corresponding to the through holes 21b, 21c, and 21d provided adjacent to each other.

As described above with reference to FIG. ₃ , the water indicated by F ₁ , F ₃ , F ₄ , and F ₅ in the figure that flows in the heat exchange flow path 24 according to the principle of pressure loss is the pressure loss. Flows into the temperature buffer 25 in the order of the through hole 21d to the through hole 21a. And the water which flowed in through the through-hole 21d-through-hole 21a from the inside of the heat exchange flow path 24 flows to the exit 12, mixing with the original water in the temperature buffer part 25. FIG. At this time, since the diameters of the through holes 21a to 21d are very small, the flow rate of the water flowing in through the through holes 21d to 21a is relatively fast. Therefore, the inflowing water and the water in the temperature buffer unit 25 are easily mixed. Thereby, the water which flowed in from the inside of the heat exchange flow path 24 and the water which is originally in the temperature buffer part 25 mix easily, and become uniform temperature. As a result, water having a uniform temperature can flow out from the outlet 12 of the heating device 1.

  Further, as shown in FIG. 5, since the mixing ribs 22 a to 22 d are installed in the temperature buffer portion 25, a mixed flow can be further generated in the water stream flowing in the temperature buffer portion 25. As a result, water with a more uniform temperature can be discharged from the outlet 12.

  In the present embodiment, the configuration in which the heater 23 is disposed so as not to contact both the wall surfaces 26a and 26b of the heat exchange channel 24 is described as an example, but the present invention is not limited to this. As will be specifically described below, for example, the heater 23 may be installed on the wall surface of the heat exchange channel 24 or may be installed on the outer wall surface of the heat exchange channel 24. That is, the heater 23 may be installed at an arbitrary position as long as the water in the heat exchange channel 24 can be heated.

  Specifically, another example of the arrangement of the heater will be described with reference to FIGS. 6A to 6C.

  FIG. 6A is a schematic view in which the heater in the modified example according to Embodiment 1 of the present invention is disposed on the inner side of the casing piece. FIG. 6B is a schematic view in which the heater is disposed on the outer side of one side of the housing. FIG. 6C is a schematic view in which the heater is disposed laterally at the bottom of the heat exchange channel.

  First, as shown in FIG. 6A, the heater 23 is brought into close contact with one inner wall of the heat exchange channel 24, and the heating surface 23 a is arranged toward the heat exchange channel 24. Thereby, the water which flows through the heat exchange flow path 24 can be heated effectively. Furthermore, the heater 23 can be easily attached and can be stably disposed.

  As shown in FIG. 6B, the heater 23 may be attached to one outer wall surface outside the heat exchange flow path 24, and the heating surface 23a may be attached to the outer wall surface side. In this case, since the space inside the housing 13 is used as the heat exchange channel 24, pasting the heater 23 on one outer wall outside the heat exchange channel 24 is pasted on the outer wall of the housing 13. It corresponds to that. Thereby, the volume of the heat exchange flow path 24 increases and the amount of hot water can be increased.

  Further, as shown in FIG. 6C, the heater 23 may be disposed at the bottom of the heat exchange channel 24, for example, in a horizontal direction, and the heating surface 23 a may be disposed toward the heat exchange channel 24. Thereby, the water which flows through the heat exchange flow path 24 can be effectively heated similarly to FIG. 6A. Furthermore, the heater 23 can be easily attached and can be stably disposed.

  Further, as shown in FIGS. 6A to 6C, the heat exchange channel 24 is not limited to the example in which only one heater 23 is provided, and one or more heaters 23 may be provided. Thereby, the water which flows through the heat exchange flow path 24 can be heated more effectively.

  In the present embodiment, the space formed by the housing is described as an example of the heat exchange flow path, but the present invention is not limited to this. For example, when the heat exchange channel is installed independently from the housing, the heater may be attached to one outer wall outside the heat exchange channel. In this case, the heater is installed on the outer wall of the heat exchange channel between the housing and the heat exchange channel. Thereby, a heat exchange channel can be heated effectively.

  In this embodiment, as shown in FIGS. 2D, 3, and 5, the inlet 11 and the outlet 12 provided in the housing are connected to the flow direction in which water flows from the inlet 11 into the heat exchange channel 24, and the temperature. Although it demonstrated by the example arrange | positioned so that the flow direction which flows out out of the buffer part 25 to the exit 12 may become reverse, it is not restricted to this. For example, as will be described below with reference to FIGS. 7A and 7B, an inlet 11 and an outlet 12 provided in the housing 13 may be disposed.

  FIG. 7A is a schematic view of a heating device in which the flow direction flowing in from the inlet and the direction flowing out from the outlet are the same in the modification of the embodiment. FIG. 7B is a schematic view of a heating device in which the flow direction flowing in from the inlet and the direction flowing out from the outlet intersect in the modification.

  That is, as shown in FIG. 7A, the inlet 11 and the outlet 12 provided in the housing 13 are arranged so that the flow direction of the water flowing in from the inlet 11 and the flow direction of the water flowing out from the outlet 12 are the same. Also good. Thereby, similarly to the above, the tapping temperature can be stabilized.

  Further, as shown in FIG. 7B, the inlet 11 and the outlet 12 provided in the housing 13 may be arranged so that the flow direction of the water flowing in from the inlet 11 and the flow direction of the water flowing out from the outlet 12 intersect. Good. Here, “crossing” means, for example, a relationship of flowing into the inlet 11 from the horizontal direction and flowing out of the outlet 12 in the vertical direction as shown in FIG. 7B. However, the present invention is not limited to this, and it goes without saying that the direction may be oblique as long as it intersects the horizontal direction. Thereby, the same effect is acquired.

  Moreover, in this Embodiment, the cross-sectional shape (cross section of the direction cut | disconnected by the 2D-2D line | wire of FIG. 2C) of the mixing rib 22 is an example in which cross-sectional width expands toward an exit side, or the rectangle shown in FIG. Although described as an example, it is not limited to this. The shape of the mixing rib 22 may be, for example, a columnar shape or a spherical shape, and the cross-sectional shape of the mixing rib 22 may be a rectangular shape, a circular shape, an elliptical shape, or the like. That is, any shape may be used as long as the water flow is limited by the mixing rib 22 and water having a non-uniform temperature can be sufficiently mixed in the temperature buffer unit 25.

  Specifically, as shown in FIG. 2D, a mixed rib 22 having a substantially crescent-shaped section (including a crescent-shaped section) may be used. In this case, the upstream side of the mixing rib 22 has a rounded convex shape without an angular portion, so that pressure loss is reduced. On the other hand, a substantially concave shape (including a concave shape) is formed on the downstream side of the mixing rib 22 toward the outlet 12. As a result, when water enters through the through hole 21 and flows out in the temperature buffer 25 toward the outlet 12, the wash water that flows along the rounded convex shape of the mixing rib 22 is directed inward at the concave portion. Flowing and mixed. That is, by using the shape of the mixing rib 22 shown in FIG. 2D, mixing is further promoted and the temperature can be made uniform.

  Further, in the present embodiment, as shown in FIGS. 2D and 2E, the temperature buffer 25 and the heat exchange channel 24 that communicate with the outlet 12 are installed between the temperature buffer 25 and the heat exchange channel 24. And a plurality of through holes 21 that communicate with the temperature buffer 25. Then, the plurality of through holes 21 are arranged at an intermediate position between the heat exchange flow path 24 and the temperature buffering portion 25, and the plurality of mixing ribs 22 are arranged downstream of the plurality of through holes 21. Furthermore, the mixing rib 22 has a cross-sectional shape having a substantially convex part that is rounded on the upstream side and a substantially convex part on the downstream side, and a cross-sectional shape having a substantially concave part on the downstream side. There is less temperature unevenness and the temperature of hot water can be made uniform. At the same time, the heat exchange flow path and the temperature buffer can be integrated to reduce the size.

  Further, in the present embodiment, as shown in FIG. 2D, the number of mixing ribs is one or more and the same as the number of through holes, and further toward the outlet of each through hole corresponding to each mixing rib. Although the example arrange | positioned in the side demonstrated, it is not restricted to this. For example, the number of mixing ribs and the number of through holes may not be the same. In addition, the mixing rib does not necessarily need to be provided on the side facing the outlet of the through hole, and the water flow can be effectively obstructed, and water with uneven temperature can be effectively mixed in the temperature buffering section. Any position can be used.

  As described above, according to the present embodiment, the temperature buffer portion is installed in the housing, and the through-hole that connects the heat exchange flow path and the temperature buffer portion is installed. Thereby, the temperature of the warm water which flows into the temperature buffer part can be made uniform. Further, the space occupied by the temperature buffering portion can be made as small as possible. Therefore, it is possible to easily reduce the size of a heating device or the like that includes the heat exchange channel and the temperature buffer at the same time.

(Embodiment 2)
Below, the installation which concerns on Embodiment 2 of this invention is demonstrated using FIG.

  In addition, the equipment of this Embodiment is provided with the heating apparatus demonstrated in the said Embodiment 1, for example, bathing apparatuses, such as a sanitary washing apparatus, a washstand, and a bathtub, an instantaneous water heater, a water server. Furthermore, equipment that needs to provide a fluid having a stable temperature is included.

  Therefore, in the following, as a facility, a sanitary washing apparatus will be specifically described as an example.

  In addition, the sanitary washing apparatus in the present embodiment is an instantaneous type that warms water while passing water, and is distinguished from a hot water storage type that stores hot water in a tank. Usually, the water flow rate of the instant type sanitary washing device is about 400 to 500 mL per minute, and hot water is generated by a heating device to wash the human body part.

  FIG. 8 is a perspective view of a sanitary washing device to which a heating device according to Embodiment 2 of the present invention is attached.

  As shown in FIG. 8, the sanitary washing device 100 according to the present embodiment includes at least a toilet seat body 101, a water supply unit (not shown), an operation unit 104, a nozzle 105, and the like. The toilet seat body 101 is pivotally connected to the seat portion 102 and pivots the seat portion 102 about the toilet seat body 101 as an axis. The toilet seat body 101 is placed on the Western-style toilet 103. Furthermore, the heating apparatus 1 described in the first embodiment is provided in the toilet seat body 101. At this time, the planar heater of the heat exchanger is arranged so as to stand vertically inside the toilet seat body 101. As a result, the inlet 11 of the heating device 1 is positioned below the heat exchange channel 24, and the outlet 12 is positioned above the heat exchange channel 24.

  Next, the operation of the sanitary washing apparatus according to this embodiment will be described.

  When cleaning is performed using the sanitary cleaning device 100, the user first operates the operation unit 104. Thereby, a water supply part supplies water to the heating apparatus 1 from a water supply source.

  The water supplied to the heating device 1 enters from the inlet 11 located below, and heat is exchanged efficiently along the heating surface that is erected in the vertical direction together with forced convection and natural convection action. The exchange flow path 24 is raised. And as above-mentioned, it heats to uniform temperature with the heat exchange flow path 24 and the temperature buffer part 25 which merge at the upper end of the heater 23 and flow through the through-hole 21. And the warm water of the uniform temperature heated instantaneously with the heating apparatus 1 is ejected from the nozzle 105 of the sanitary washing apparatus 100. Thereby, the human body is cleaned.

  According to the present embodiment, by incorporating the small heating device 1, facilities such as the sanitary washing device 100 can be made smaller. In addition, the heating device 1 can generate water having a uniform temperature with little temperature unevenness and eject the water from the nozzle 105. Thereby, facilities, such as the sanitary washing apparatus 100 excellent in the usability | use_condition, are realizable. Normally, sanitary washing devices are not always passed because they are used and not used. Therefore, it is necessary to discharge hot water having an optimum temperature when necessary. Thus, the heat exchanger according to the present invention can instantly generate warm water for washing the human body with little temperature unevenness, and can realize a comfortable feeling of use.

  In the above description, the present invention has been described with reference to specific embodiments. However, these descriptions are all illustrative and do not limit the protection scope of the present invention. Furthermore, it goes without saying that various modifications and corrections added to the present invention based on the gist and principle of the present invention are also included in the scope of the present invention.

  As described above, the heating device according to the present invention includes a housing having an inlet through which a fluid flows and an outlet through which the fluid flows, a heat exchange channel that is installed in the housing and communicates with the inlet, and a heat exchange channel. And a heater for heating the fluid inside. Furthermore, a temperature buffer unit that is installed in the housing and communicates with the outlet, and a through-hole that is installed between the heat exchange channel and the temperature buffer unit and that communicates the heat exchange channel and the temperature buffer unit. Is provided. The heat exchange channel guides the fluid flowing from the inlet, causes the heated fluid to flow from the through hole to the temperature buffer, and the temperature buffer guides the fluid flowing from the through hole to the outlet. Also good.

  According to this configuration, the temperature buffer unit is installed, and the heat exchange channel and the temperature buffer unit are communicated with each other via one or more through holes. Thereby, water can be made to flow into the temperature buffer part more uniformly from the through hole. As a result, the temperature of the warm water flowing from the heat exchange channel can be made uniform in the temperature buffer part. In addition, the space occupied by the temperature buffer can be reduced. As a result, it is possible to realize a heating device that equalizes the temperature of the hot water and is miniaturized by integrating the heat exchange flow path and the temperature buffer.

  The heating device of the present invention may further include a mixing rib in the temperature buffer. According to this configuration, the hot water flowing in the temperature buffer portion is inhibited from flowing by the mixing rib while flowing in the temperature buffer portion. At this time, the hot water flowing from the through hole and flowing in the temperature buffer portion is further mixed in the gap between the mixing rib and the inner wall of the temperature buffer portion and the temperature buffer portion without the mixing rib. Thereby, the temperature of warm water can be made more uniform and can be made to flow out from an exit.

  Moreover, the heating apparatus of this invention may provide a mixing rib in the position of an exit side rather than the through-hole of the position furthest away from the exit. Thereby, the flow direction of the hot water flowing in the temperature buffer portion can be more effectively inhibited. As a result, warm water with uneven temperature can be further mixed and made uniform.

  Moreover, the heating apparatus of this invention may install a heater in the position which does not contact the wall surface of a heat exchange flow path within a heat exchange flow path. Thereby, water can be heated on both surfaces of a heater. As a result, the heating speed can be accelerated and hot water can be supplied instantaneously.

  In the heating device of the present invention, the inlet and the outlet of the housing are positioned at positions where the flow direction in which the fluid flows from the inlet to the heat exchange channel and the flow direction in which the fluid flows from the temperature buffer to the outlet are opposite to each other. It may be provided. Thereby, the balance of the fluid which flows into a temperature buffer part from a through-hole, and the fluid which flows out can be maintained. As a result, it is possible to efficiently flow warm water into the temperature buffer without causing fluid to stay in the heat exchange flow path.

  In the heating device of the present invention, the flow direction of the fluid flowing into the temperature buffer portion from the through hole and the flow direction of the fluid in the temperature buffer portion may intersect. Thereby, the fluid which flows in the temperature buffer part and the fluid which flows in from a through-hole can be mixed gradually. As a result, the temperature can be made uniform when flowing out from the outlet.

  The sanitary washing device of the present invention is a toilet seat body that is placed on a Western-style toilet and is pivotally connected to the seating section, and the heating section provided in the toilet seat body by rotating the seating section around the toilet seat body. The apparatus, the water supply part which supplies the water from a water supply source to a heating apparatus, and the nozzle which wash | cleans a human body using the warm water which the heating apparatus heated may be included.

  Thereby, the hot water of the uniform temperature produced | generated with the heating apparatus can be injected from a nozzle. In addition, the size of the sanitary washing device can be reduced by incorporating a small heating device.

  Moreover, the installation of this invention may be equipped with the said heating apparatus.

  Thereby, the hot water of the uniform temperature produced | generated with the heating apparatus can be injected from an installation. Also, by incorporating a small heating device, the equipment can be downsized.

  INDUSTRIAL APPLICATION This invention is useful in field | areas, such as a heating apparatus with which generation | occurrence | production of small and uniform temperature warm water is requested | required, a sanitary washing apparatus provided with it, and an installation.

DESCRIPTION OF SYMBOLS 1 Heating device 11 Inlet 12 Outlet 13 Housing | casing 21,21a, 21b, 21c, 21d Through-hole 22,22a, 22b, 22c, 22d Mixing rib 23 Heater 23a Heating surface 24 Heat exchange flow path 24c, 24d, 24e Area | region 25 Temperature buffer part 26a, 26b Wall surface 100 Sanitary washing device 101 Toilet seat body 102 Seating part 103 Western-style toilet 104 Operation part 105 Nozzle

Claims (8)

A housing having an inlet for allowing fluid to flow in and an outlet for allowing fluid to flow out;
A heat exchange flow path installed in the housing and in communication with the inlet;
A heater for heating the fluid in the heat exchange channel;
A plurality of penetrations that are installed in the housing and communicated with the outlet and between the temperature buffer and the heat exchange channel and the temperature buffer, and communicate the heat exchange channel and the temperature buffer. A hole, and
The temperature buffer portion includes a mixing rib that narrows the flow path of the temperature buffer portion flowing from the through hole and flowing out to the outlet, on the outlet side of the through hole,
The heat exchange channel guides a fluid flowing from the inlet, allows the heated fluid to flow from the through hole to the temperature buffer portion, and allows the temperature buffer portion to flow the fluid flowing from the through hole to the outlet A heating device that guides you to The heating device according to claim 1, wherein the number of the mixing ribs is the same as the number of the through holes. The heating device according to claim 1, wherein the mixing rib has a substantially crescent-shaped cross-sectional shape having a convex shape with a rounded upstream side. The heating apparatus according to claim 1, wherein the heater is installed in a position not in contact with a wall surface of the heat exchange channel in the heat exchange channel. The inlet and the outlet of the housing are provided at positions where the flow direction in which the fluid flows into the heat exchange channel from the inlet and the flow direction in which the fluid flows out from the temperature buffer to the outlet are opposite to each other. The heating apparatus according to claim 1. The heating device according to claim 1, wherein a flow direction of the fluid flowing into the temperature buffer portion from the through hole intersects with a flow direction of the fluid in the temperature buffer portion. A toilet seat body mounted on a Western-style toilet and pivotally connected to a seat;
The heating device according to any one of claims 1 to 6, wherein the seating portion is pivoted about the toilet seat body, and is provided in the toilet seat body;
A water supply unit for supplying water from a water supply source to the heating device;
A sanitary washing device comprising: a nozzle for washing a human body using hot water heated by the heating device. The equipment which comprises the heating device according to any one of claims 1 to 6.