Heating device and closestool

Abstract

The utility model discloses a heating device and a closestool. The heating device comprises a shell and a heating piece, the shell is provided with a heating cavity and a mixing cavity, the heating cavity is provided with a first water inlet, and the mixing cavity is provided with a first water outlet; the heating piece is arranged in the heating cavity and used for heating water in the heating cavity; the heating device is further provided with a temperature measuring cavity and a temperature control switch assembly, and the heating cavity, the temperature measuring cavity and the mixing cavity are sequentially communicated in the water flow direction in the heating device. The temperature control switch assembly is arranged at the temperature measuring cavity and is arranged to detect the water temperature in the temperature measuring cavity and carry out overheating protection on the heating device based on the water temperature in the temperature measuring cavity. According to the heating device, the overheating signal of the heating cavity can be transmitted to the temperature control switch assembly in time, and overheating protection action delay of the temperature control switch assembly is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating equipment technical field more particularly, relate to a kind of heating device and closestool. BACKGROUND

[0002] Intelligent closestool is generally provided with heating device, heating device is provided with heating piece in heating cavity, heating piece can heat the water in heating cavity to heat up, to obtain hot water for closestool human body cleaning module use.For the use safety of heating device, it is necessary to set up over-temperature protection system, generally set temperature control switch component to detect water temperature and carry out overheating protection.

[0003] Heating device includes heat storage type heating device and instant heating type heating device.In prior art, heat storage type heating device is provided with water inlet and water outlet in heating cavity, and temperature control switch component is installed on the wall surface of heating cavity.Due to the reasons of water flow confusion and water temperature stratification in heating cavity, the water temperature distribution of heating cavity is not balanced, and temperature control switch component cannot timely and accurately obtain the overheating condition in heating cavity.Instant heating type heating device is provided with heating cavity and mixing cavity, heating cavity is provided with water inlet, and mixing cavity is provided with water outlet, water is heated in heating cavity and then enters mixing cavity to make water temperature mixing more uniform, and temperature control switch component is installed in mixing cavity to detect water temperature in mixing cavity.Due to the reasons that the water temperature will drop after high-temperature hot water in heating cavity mixes with low-temperature water in mixing cavity, temperature control switch component cannot timely detect the overheating condition in heating cavity.So, the heating device in prior art is limited by waterway flow path and the installation position of temperature control switch component, and cannot timely and accurately execute over-temperature protection action. SUMMARY

[0004] The utility model embodiment provides a kind of heating device and closestool, the heating device is provided with temperature measurement cavity between heating cavity and mixing cavity along the direction of water flow, temperature control switch component is arranged in temperature measurement cavity to carry out overheating protection to heating device, if the water temperature in heating cavity is overheated abnormally, high-temperature water flow in heating cavity is transmitted to temperature control switch component in time with the overheating signal of heating cavity, to avoid the delay situation of overheating protection action of temperature control switch component.

[0005] The technical scheme of the utility model embodiment is as follows:

[0006] A kind of heating device, comprising:

[0007] Shell, heating cavity and mixing cavity are provided with, the heating cavity is provided with first water inlet, and the mixing cavity is provided with first water outlet;And

[0008] Heating piece, for heating the water in the heating cavity, is arranged in the heating cavity;

[0009] The heating device is further provided with a temperature measuring cavity and a temperature control switch assembly, the heating cavity, the temperature measuring cavity and the mixing cavity are sequentially communicated along the water flow direction in the heating device, the temperature control switch assembly is arranged at the temperature measuring cavity and is configured to detect the water temperature in the temperature measuring cavity and perform overheat protection on the heating device based on the water temperature in the temperature measuring cavity.

[0010] A toilet comprises the heating device as described in the above embodiments.

[0011] The heating device has the following technical effects:

[0012] The heating device is provided with the temperature measuring cavity between the heating cavity and the mixing cavity along the water flow direction in the heating device, if the heating cavity has abnormal temperature rise, the high-temperature overheated water in the heating cavity flows into the temperature measuring cavity to timely transmit the abnormal overheating signal to the temperature control switch assembly, so that the temperature control switch assembly quickly and accurately performs the overheat protection action. In this way, compared with the prior art of installing the temperature control switch assembly to the mixing cavity, the water flow temperature rise and overheating in the heating cavity of the heating device will not be affected by the mixing and temperature reduction of the low-temperature water in the mixing cavity, so that the temperature control switch assembly can first receive the temperature rise signal of the heating cavity and timely trigger the overheat protection action. The temperature control switch assembly timely and quickly receives the overtemperature signal of the water flow in the heating cavity, which can avoid the delay of triggering the overheat protection action of the temperature control switch assembly and improve the service life of the heating device.

[0013] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the application can be realized and attained by the structure particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the technical scheme of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical scheme of the present application, and do not constitute a limitation on the technical scheme of the present application.

[0015] Figure 1 The structure schematic view of the heating device of an embodiment of the present application is observed from one perspective;

[0016] Figure 2 The exploded structure schematic view of the heating device of Figure 1 ;

[0017] Figure 3 The structure schematic view of the middle shell of Figure 2 is observed from one perspective;

[0018] Figure 4 The structure schematic view of the middle shell ofFigure 2 Structure schematic diagram of the middle shell from another perspective;

[0019] Figure 5 Structure schematic diagram of the middle shell from another perspective; Figure 3 Structure schematic diagram of the middle shell from another perspective;

[0020] Figure 6 Structure schematic diagram of the middle shell from another perspective; Figure 1 Structure schematic diagram of the middle shell from another perspective;

[0021] Figure 7 Structure schematic diagram of the middle shell from another perspective; Figure 1 Structure schematic diagram of the middle shell from another perspective;

[0022] Figure 8 Structure schematic diagram of the middle shell from another perspective; Figure 1 Structure schematic diagram of the middle shell from another perspective;

[0023] Figure 9 Structure schematic diagram of the middle shell from another perspective; Figure 1 Structure schematic diagram of the middle shell from another perspective;

[0024] Figure 10 Structure schematic diagram of the middle shell from another perspective; Figure 1 Structure schematic diagram of the middle shell from another perspective;

[0025] Figure 11 Structure schematic diagram of the middle shell from another perspective; Figure 2 Structure schematic diagram of the middle shell from another perspective;

[0026] Figure 12 Structure schematic diagram of the middle shell from another perspective; Figure 2 Structure schematic diagram of the middle shell from another perspective;

[0027] Figure 13 Structure schematic diagram of the middle shell from another perspective; Figure 11 Structure schematic diagram of the middle shell from another perspective;

[0028] Figure 14 Structure schematic diagram of the middle shell from another perspective;

[0029] Figure 15 Structure schematic diagram of the middle shell from another perspective; Figure 14 Structure schematic diagram of the middle shell from another perspective;

[0030] Figure 16 Structure schematic diagram of the middle shell from another perspective;

[0031] Figure 17 Structure schematic diagram of the middle shell from another perspective; Figure 16 Structure schematic diagram of the middle shell from another perspective;

[0032] Figure 18 Structure schematic diagram of the middle shell from another perspective; Figure 16 Structure schematic diagram of the middle shell from another perspective;

[0033] Figure 19 for Figure 1 Another cross-sectional structural diagram of the heating device;

[0034] Figure 20 for Figure 1 Another cross-sectional structural diagram of the heating device;

[0035] Figure 21 for Figure 1 A schematic diagram of the heating device viewed from another perspective;

[0036] Figure 22 for Figure 1 A schematic diagram of the heating device without the temperature control switch assembly and the pressure cap.

[0037] Figure label:

[0038] 1-Housing; 11-Heating chamber; 111-First inlet; 112-First connecting channel; 113-Heating channel; 114-Top wall; 115-Receiving groove; 116-Gland cover; 12-Mixing chamber; 121-First outlet; 122-Second connecting channel; 13-Temperature measuring chamber; 131-First opening; 132-Temperature measuring channel groove; 14-Mounting boss; 15-Second opening; 16-First mounting base; 161-First insertion hole; 17-Second mounting base; 171-Second insertion hole; 2-Heating element; 3-Temperature control switch assembly; 4-Flow guide; 41-Flow channel; 5-Mounting support; 6-First temperature sensor; 7-Second temperature sensor; 8-Fuse Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

[0040] Please see the appendix Figure 1 To be continued Figure 22 The diagram shows a structural schematic of the heating device according to an embodiment of this application. Figure 1 and Figure 2 As shown, the heating device provided in this embodiment includes a housing 1 and a heating element 2, as... Figure 3 and Figure 4 As shown, the housing 1 is provided with a heating chamber 11 and a mixing chamber 12. The heating chamber 11 is provided with a first water inlet 111, and the mixing chamber 12 is provided with a first water outlet 121; Figure 6 As shown, the heating element 2 is disposed inside the heating chamber 11 and is used to heat the water in the heating chamber 11. Wherein, as... Figure 6 and Figure 8As shown, the heating device is further provided with a temperature measuring cavity 13 and a temperature control switch assembly 3. The heating cavity 11, the temperature measuring cavity 13 and the mixing cavity 12 are sequentially communicated along the water flow direction in the heating device. The temperature control switch assembly 3 is arranged at the temperature measuring cavity 13 and is configured to detect the water temperature in the temperature measuring cavity 13 and perform overheat protection on the heating device based on the water temperature in the temperature measuring cavity 13.

[0041] Specifically, Figure 1 and Figures 6 to 8 The arrow direction in the drawings represents the water flow direction, Figures 6 to 8 The water flow path of the heating device of the present application is shown as follows, Figure 6 As shown, the water enters the heating cavity 11 from the first water inlet 111 arranged at the first heating cavity 11 and is heated by the heating element 2 in the heating cavity 11. As shown, Figure 8 The water enters the temperature measuring cavity 13 from the heating cavity 11, transmits the water temperature to the temperature control switch assembly 3, and then enters the mixing cavity 12 from the temperature measuring cavity 13 to mix the water temperature uniformly. Finally, the water flows out from the first water outlet 121.

[0042] In the prior art, the temperature control switch assembly of the instant heating device is installed to the mixing cavity. The temperature control switch assembly performs overheat protection action based on the water temperature of the mixing cavity. The abnormally high-temperature water flow in the heating cavity enters the mixing cavity and mixes with the low-temperature water in the mixing cavity to reduce the water temperature, which causes the temperature control switch assembly to trigger the overheat protection action to be delayed for a long time. The temperature control switch assembly cannot timely and accurately perform the overheat protection action, which affects the service life of the heating device. In the heating device of the present application, along the water flow direction in the heating device, the temperature measuring cavity 13 is arranged between the heating cavity 11 and the mixing cavity 12. If there is abnormal temperature rise in the heating cavity 11, the high-temperature overheated water in the heating cavity 11 will flow into the temperature measuring cavity 13 to timely transmit the abnormal overheating signal to the temperature control switch assembly 3, so that the temperature control switch assembly 3 can quickly and accurately perform the overheat protection action. In this way, the water flow in the heating cavity 11 will not be affected by the mixing and temperature reduction of the low-temperature water in the mixing cavity 12, which ensures that the temperature control switch assembly 3 receives the temperature rise signal of the heating cavity 11 in the first time and timely triggers the overheat protection action. Since the temperature control switch assembly 3 itself needs a certain time to trigger the disconnection of the circuit when it receives a temperature exceeding the set value, timely and quick reception of the overtemperature signal of the water flow in the heating cavity 11 by the temperature control switch assembly 3 can avoid the delay of triggering the overheat protection action of the temperature control switch assembly 3 and improve the service life of the heating device.

[0043] In one exemplary embodiment, as shown in Figure 5 , Figure 6 and Figure 8 The temperature measuring cavity 13 is provided with a first opening 131. The temperature control switch assembly 3 is arranged at the first opening 131. The temperature sensing head of the temperature control switch assembly 3 directly contacts the water in the temperature measuring cavity 13.

[0044] Specifically, the heating device of the prior art usually uses a metal piece such as a copper sheet or a stainless steel sheet to contact water in a temperature measuring cavity, a temperature control switch assembly is installed on a side of the metal piece away from the temperature measuring cavity, and heat-conducting silicone grease is used to assist heat transfer at a position where the metal piece and the temperature control switch assembly are in close contact. The heating device of the prior art is characterized in that water temperature in the temperature measuring cavity is conducted to the metal piece, then to the heat-conducting silicone grease, and finally to the temperature control switch assembly. This method is slow in heat conduction, and thus the temperature control switch assembly is delayed in triggering an over-temperature protection action.

[0045] The heating device of the embodiment of the present application is characterized in that the temperature sensing head of the temperature control switch assembly 3 can be made of stainless steel, the temperature measuring cavity 13 is provided with a first opening 131, the temperature control switch assembly 3 is arranged on the first opening 131, and the temperature sensing head of the temperature control switch assembly 3 directly contacts water in the temperature measuring cavity 13. In this way, the temperature sensing mode of the temperature sensing head of the temperature control switch assembly 3 is changed from metal piece heat conduction to direct contact with water, the temperature sensing head of the temperature control switch assembly 3 directly contacts water in the temperature measuring cavity 13, thereby avoiding heat conduction delay caused by the metal piece and the heat-conducting silicone grease, improving the temperature measuring sensitivity of the temperature control switch assembly 3, and facilitating the temperature control switch assembly 3 to timely perform an over-temperature protection action.

[0046] In an exemplary embodiment, as shown in Figure 5 、 Figure 9 and Figure 17 , the temperature measuring cavity 13 is provided with a temperature measuring flow channel groove 132, one end of the temperature measuring flow channel groove 132 in the depth direction is open to form a groove opening, and the first opening 131 includes the groove opening of the temperature measuring flow channel groove 132.

[0047] Specifically, the temperature measuring cavity 13 is provided with the temperature measuring flow channel groove 132, so that water flow can only flow along the temperature measuring flow channel groove 132, and the temperature measuring flow channel groove 132 guides and controls the water flow path and direction in the temperature measuring cavity 13, so that the replacement rate of water in the temperature measuring cavity 13 is high, and water with abnormal temperature rise in the heating cavity 11 can timely contact the temperature control switch assembly 3.

[0048] In addition, one end of the temperature measuring flow channel groove 132 in the depth direction is open to form a groove opening, and the temperature control switch assembly 3 is arranged on the groove opening of the temperature measuring flow channel groove 132. Since the groove opening area of the temperature measuring flow channel groove 132 is large and the flow cross section of the temperature measuring flow channel groove 132 is stable, the water flow area of the temperature measuring cavity 13 contacted by the temperature control switch assembly 3 is large, which is conducive to improving the sensitivity of the temperature control switch assembly 3.

[0049] Optionally, the temperature measuring flow channel groove 132 can be arranged in a curved and extended shape to expand the area of the groove opening of the temperature measuring flow channel groove 132. Figure 9 As shown in the embodiment of the heating device, the temperature measuring flow channel groove 132 is in a meandering and zigzag shape. Figure 17 As shown in the embodiment of the heating device, the temperature measuring flow channel groove 132 is in a spiral shape. Figure 9The arrow in the figure indicates the water flow direction of the temperature measuring cavity 13.

[0050] The arrangement of the temperature measuring cavity 13 of the heating device in the embodiments of the present application includes at least two cases. In the first case, the temperature measuring cavity 13 is located on the upper side of the heating cavity 11. In the second case, the temperature measuring cavity 13 is located on the side of the heating cavity 11 and the mixing cavity 12. Figures 1 to 13 Figures 19 to 22 In the embodiment of the heating device shown in the figure, the temperature measuring cavity 13 is located on the upper side of the heating cavity 11. Figures 14 to 18 In the embodiment of the heating device shown in the figure, the temperature measuring cavity 13 is located on the side of the heating cavity 11 and the mixing cavity 12.

[0051] It can be understood that the temperature measuring cavity 13 can also be arranged in other directions relative to the heating cavity 11, which is also within the protection scope of the present application.

[0052] In an exemplary embodiment, as shown in Figure 5 Figure 6 and Figure 8 In the embodiment of the heating device shown in the figure, the mixing cavity 12 is located on the upper side of the heating cavity 11, the temperature measuring cavity 13 is located on the upper side of the heating cavity 11, the top outer wall of the shell 1 is provided with a mounting boss 14, the temperature measuring cavity 13 is arranged on the mounting boss 14, and the temperature control switch assembly 3 is mounted to the mounting boss 14.

[0053] Specifically, the top outer wall of the shell 1 is provided with a mounting boss 14, the temperature measuring cavity 13 is arranged on the mounting boss 14, and the temperature control switch assembly 3 is mounted to the mounting boss 14. Therefore, the temperature measuring cavity 13 and the temperature control switch assembly 3 are both arranged on the top outer wall surface of the shell 1, which facilitates the installation and removal of the temperature control switch assembly 3.

[0054] Figure 3 In the embodiment of the heating device shown in the figure, the mixing cavity 12 and the temperature measuring cavity 13 are both located on the upper side of the heating cavity 11, and the mixing cavity 12 and the temperature measuring cavity 13 are both arranged close to one side of the shell 1, so that the overall structural layout of the heating device is relatively compact.

[0055] It can be understood that in the heating device of the present application, the temperature measuring cavity 13 can be located between the heating cavity 11 and the mixing cavity 12 along the water flow direction of the heating flow channel, and the specific position of the temperature measuring cavity 13 of the present application is not limited to the top outer wall surface of the shell 1.

[0056] In an exemplary embodiment, as shown in Figure 7 and Figure 8 The heating device further comprises a flow guide 4, which is located in the heating cavity 11. The heating element 2, the inner wall of the heating cavity 11 and the flow guide 4 enclose a heating flow channel 113.

[0057] ​​The shell 1 is provided with a first communication flow channel 112 which communicates the temperature measuring cavity 13 and the heating cavity 11, and the flow guide member 4 is provided with a flow guide channel 41, the temperature measuring cavity 13 is arranged close to the water outlet end of the heating flow channel 113, and the input end and the output end of the flow guide channel 41 are respectively communicated with the heating flow channel 113 and the first communication flow channel 112.

[0058] Specifically, the water flow path of the heating device is as follows: after the water is heated by the heating member 2 in the heating cavity 11, the water enters the temperature measuring cavity 13 through the first communication flow channel 112, and then enters the mixing cavity 12. The shell 1 is provided with a first communication flow channel 112 which communicates the temperature measuring cavity 13 and the heating cavity 11, and the shell 1 is provided with a communication flow channel which communicates the temperature measuring cavity 13 and the mixing cavity 12.

[0059] The heating member 2, the inner wall of the heating cavity 11 and the flow guide member 4 enclose the heating flow channel 113, so that the water flow in the heating flow channel 113 surrounds the outer side wall of the heating member 2, thereby increasing the contact area between the water in the heating flow channel 113 and the heating member 2, and improving the heating efficiency of the heating device. Moreover, the water flow in the heating cavity 11 flows along the heating flow channel 113, the water flow path in the heating cavity 11 is guided and controlled, and the flow speed of the water in the heating flow channel 113 is improved.

[0060] The flow guide channel 41 and the first communication flow channel 112 have the effect of communicating the heating flow channel 113 and the temperature measuring cavity 13, Figure 8 In the embodiment shown, the temperature measuring cavity 13 is arranged close to the water outlet end of the heating flow channel 113, so that the water flow paths of the flow guide channel 41 and the first communication flow channel 112 are relatively short, and the water heated and warmed in the heating flow channel 113 can quickly reach the temperature measuring cavity 13.

[0061] In an exemplary embodiment, as shown in the drawings, Figures 14 to 18 As shown, the mixing cavity 12 is located on the upper side of the heating cavity 11, and the temperature measuring cavity 13 is located on the side of the heating cavity 11 and the mixing cavity 12.

[0062] The heating device further comprises a flow guide member 4, the flow guide member 4 is located in the heating cavity 11, and the heating member 2, the inner wall of the heating cavity 11 and the flow guide member 4 enclose the heating flow channel 113.

[0063] The side of the shell 1 is provided with a second opening 15, and the heating device further comprises a mounting support 5 which is arranged at the second opening 15; the heating member 2 is arranged to be inserted into the heating cavity 11 from the second opening 15 and supported on the mounting support 5; the temperature measuring cavity 13 is located on the end face of the flow guide member 4 which faces the second opening 15, and the temperature control switch assembly 3 is mounted on the mounting support 5.

[0064] Specifically, Figures 14 to 18 In the heating device embodiment shown, the temperature measuring cavity 13 is located on the side of the heating cavity 11 and the mixing cavity 12. Figure 17The arrow in the figure indicates the water flow direction of the temperature measuring cavity 13. The embodiment of the present application sets the temperature control switch assembly 3 and the temperature measuring cavity 13 on the side wall of the heating device, which expands the structure type and application range of the heating device. Compared with the method of setting the temperature measuring cavity 13 on the top outer wall of the shell 1, setting the temperature measuring cavity 13 and the temperature control switch assembly 3 on the side wall of the heating device can reduce the height of the heating device, and is suitable for the case of supplying power to the temperature control switch assembly 3 from the side of the shell 1.

[0065] In the heating device embodiment shown in the figure, the end surface of the flow guide 4 facing the second opening 15 and the mounting support 5 enclose the temperature measuring cavity 13, and the mounting support 5 is provided with an opening in the form of a through hole, which is in communication with the temperature measuring cavity 13 and is oppositely arranged. The temperature control switch assembly 3 is installed to the opening of the mounting support 5, and a cover is arranged on the first opening 131 of the temperature measuring cavity 13. Figure 14 Figure 15 In some exemplary embodiments, the temperature control switch assembly 3 is installed to the side of the heating device, but the temperature control switch assembly 3 does not directly contact the temperature measuring cavity 13. In the heating device embodiment shown in the figure, the temperature measuring cavity 13 with a spiral groove is arranged on the end surface of the flow guide 4 facing the second opening 15, the temperature measuring cavity 13 is located on the end surface of the flow guide 4 facing the second opening 15, the mounting support 5 is in the form of a plate, the mounting support 5 covers and seals the second opening 15 on the side of the shell 1, and the mounting support 5 abuts against the part of the end surface of the flow guide 4 facing the second opening 15, so that the mounting support 5 blocks the opening of the temperature measuring cavity 13, the mounting support 5 directly contacts the water in the temperature measuring cavity 13, and the temperature control switch assembly 3 is installed to the side of the mounting support 5 away from the temperature measuring cavity 13.

[0066] In some exemplary embodiments, the temperature control switch assembly 3 is installed to the side of the heating device, but the temperature control switch assembly 3 does not directly contact the temperature measuring cavity 13. In the heating device embodiment shown in the figure, the temperature measuring cavity 13 with a spiral groove is arranged on the end surface of the flow guide 4 facing the second opening 15, the temperature measuring cavity 13 is located on the end surface of the flow guide 4 facing the second opening 15, the mounting support 5 is in the form of a plate, the mounting support 5 covers and seals the second opening 15 on the side of the shell 1, and the mounting support 5 abuts against the part of the end surface of the flow guide 4 facing the second opening 15, so that the mounting support 5 blocks the opening of the temperature measuring cavity 13, the mounting support 5 directly contacts the water in the temperature measuring cavity 13, and the temperature control switch assembly 3 is installed to the side of the mounting support 5 away from the temperature measuring cavity 13. Figures 16 to 18 The inner wall of the heating cavity 11 and the flow guide 4 enclose the heating flow channel 113, so that the water flow in the heating flow channel 113 surrounds the outer side wall of the heating element 2, increases the contact area between the water in the heating flow channel 113 and the heating element 2, and improves the heating efficiency of the heating device. Moreover, the water flow in the heating cavity 11 flows along the heating flow channel 113, the water flow path in the heating cavity 11 is planned and guided, and the flow speed of the water in the heating flow channel 113 is improved.

[0067] Since the high-temperature water flow converges on the downstream side of the water flow direction of the heating flow channel 113 and the water temperature is the highest, the output end of the water flow direction of the heating flow channel 113 is communicated with the temperature measuring cavity 13, so that the heating flow channel 113 water temperature rising condition can be quickly and timely transmitted to the temperature measuring cavity 13, so as to trigger the temperature control switch assembly 3 to perform the overheat protection action.

[0068]

[0069] ​​If the temperature control switch assembly 3 is directly arranged at the output end of the heating flow channel 113, due to the stratified flow state of the water temperature in the heating cavity 11, the temperature fluctuation at the output end of the heating flow channel 113 is large, which may trigger the overheating protection action of the temperature control switch assembly 3 by mistake. The output end of the heating flow channel 113 is communicated with the temperature measuring cavity 13, and the water flow with uneven water temperature distribution in the heating flow channel 113 will be mixed and convected after entering the temperature measuring cavity 13. The water temperature distribution of the temperature measuring cavity 13 is more uniform, the water temperature consistency of the temperature measuring cavity 13 is better than that of the heating cavity 11, and the temperature measuring cavity 13 can better reflect the high temperature abnormal condition of the output end of the heating cavity 11.

[0070] In one exemplary embodiment, as shown in Figure 2 、 Figure 6 、 Figure 8 and Figure 19 , the heating device further comprises a first temperature sensor 6 and a second temperature sensor 7. The probe of the first temperature sensor 6 is inserted into the inner cavity of the first water inlet 111, the shell 1 is provided with a second communication flow channel 122 communicating the temperature measuring cavity 13 and the mixing cavity 12, and the probe of the second temperature sensor 7 is inserted into the inner cavity of the second communication flow channel 122.

[0071] Specifically, Figure 8 , the water flow path of the heating device is as follows: water enters the heating cavity 11 from the first water inlet 111, then enters the temperature measuring cavity 13 through the first communication flow channel 112, then enters the mixing cavity 12 through the second communication flow channel 122, and finally flows out from the first water outlet 121.

[0072] The probe of the first temperature sensor 6 is inserted into the inner cavity of the first water inlet 111 for detecting the water inlet temperature. The probe of the second temperature sensor 7 is inserted into the second communication flow channel 122 communicating with the mixing cavity 12 for detecting the water outlet temperature. In order to ensure that the heating device outputs stable hot water, the water inlet temperature and the water outlet temperature need to be accurately detected to provide reference data for the heating power.

[0073] The first temperature sensor 6 and the second temperature sensor 7 provide preset values of the heating power for the system. The system calculates the corresponding heating power by detecting the water inlet temperature and setting the water outlet temperature. For example, during the heating process of the heating device, the water temperature rises rapidly, the second temperature sensor 7 quickly judges the change of the water outlet temperature, compares it with the system set value, and when the water outlet temperature rises beyond the preset value, the system needs to adjust the heating power to meet the set value.

[0074] When arranging the first temperature sensor, if it is placed at the water storage location of the water source as a reference for the inlet water temperature, the sensor detects the water temperature at that location. Due to the influence of the water flow within the water storage chamber, the water temperature at this detection location may not accurately determine the precise water temperature flowing into the heating chamber of the heating device. However, in this embodiment, the temperature sensor is placed at the water inlet of the heating device, allowing for precise detection of the accurate water temperature flowing into the heating chamber. Because of the uniqueness of the flow path, the sensor can accurately detect changes in the inlet water temperature, providing crucial data for adjusting the system's heating power.

[0075] When arranging the second temperature sensor 7, it is necessary to ensure that the outlet water temperature at the detection location is relatively stable. For example, under constant heating power conditions, if the outlet water temperature fluctuates significantly, the system will be unable to determine and control the heating system. Due to the influence of the water flow pattern (turbulent flow, laminar flow) in the heating chamber 11, the water temperature in the heating chamber 11 usually fluctuates significantly, making it unsuitable to arrange the second temperature sensor 7 in the heating chamber. During the process of water flowing from the water output end of the heating chamber 11 through the first connecting channel 112 into the temperature measuring chamber 13, water of different temperatures converges and mixes. However, due to the short path and small volume, the mixing effect is relatively poor, resulting in large fluctuations in the water temperature in the first connecting channel 112, making it unsuitable to arrange the second temperature sensor 7. When the water flows out from the temperature measuring channel groove 132 of the temperature measuring chamber 13 and flows into the second connecting channel 122 of the temperature measuring chamber 13 and the mixing chamber 12, the bends and changes in the flow path at these locations lengthen the flow path and improve the water mixing uniformity, resulting in better stability of the outlet water temperature detected at the second connecting channel 122. Therefore, by inserting the probe of the second temperature sensor 7 into the inner cavity of the second connecting channel 122, the water temperature stability of the second connecting channel 122 is good, which can ensure the stability of the detected outlet water temperature.

[0076] In one exemplary embodiment, such as Figure 1 , Figure 3 , Figure 4 , Figure 6 , Figure 8 , Figure 9 , Figure 19 and Figure 21 As shown, the housing 1 is provided with a first mounting base 16 and a second mounting base 17. The first mounting base 16 is provided with a first insertion hole 161 communicating with the first water inlet 111. The second mounting base 17 is provided with a second insertion hole 171 communicating with the second communicating channel 122. The first temperature sensor 6 is connected to the first mounting base 16 and inserted into the first insertion hole 161. The second temperature sensor 7 is connected to the second mounting base 17 and inserted into the second insertion hole 171.

[0077] The first mounting seat 16 and the second mounting seat 17 are located on the same side of the shell 1, the first mounting seat 16, the second mounting seat 17 and the first water inlet 111 are close to the mixing cavity 12, and the center lines of the first insertion hole 161 and the second insertion hole 171 are parallel.

[0078] Specifically, the shell 1 is generally a plastic part formed by injection molding, and the first mounting seat 16 and the second mounting seat 17 are formed on the same side of the shell 1. Figure 6 and Figure 8 In the embodiment of the heating device shown in the figure, the first mounting seat 16 and the second mounting seat 17 are located on the same side of the shell 1, the first mounting seat 16, the second mounting seat 17 and the first water inlet 111 are close to the mixing cavity 12, and the center lines of the first insertion hole 161 and the second insertion hole 171 are parallel, when the pipe wall of the first mounting seat 16, the second mounting seat 17 and the first water inlet 111 is integrally formed with the shell 1, the above structure is beneficial to simplify the shell 1 The injection molding process, so that the shell 1 is easy to injection molding.

[0079] Figure 6 In the embodiment shown in the figure, the center lines of the first insertion hole 161 and the second insertion hole 171 are horizontally arranged, which can reduce the height of the heating device.

[0080] The first temperature sensor 6 is inserted into the first insertion hole 161, and the second temperature sensor 7 is inserted into the second insertion hole 171, so that the two temperature sensors are convenient to install and disassemble with the shell 1, and the structure design is simple and easy to manufacture.

[0081] It can be understood that the connection mode between the first temperature sensor 6 and the second temperature sensor 7 and the shell 1 can also be provided in other structure forms, such as screw connection, clamping connection, etc., which are within the protection scope of the present application.

[0082] In an exemplary embodiment, as shown in Figure 1 、 Figures 20 to 22 The heating device further comprises a fuse 8, the fuse 8 is installed to the outer surface of the top wall 114 of the heating cavity 11, and the fuse 8 is in contact with the outer surface of the top wall 114 of the heating cavity 11.

[0083] Specifically, the fuse 8 is connected in series in the power supply circuit of the heating element 2 of the heating device, when the fuse 8 is high-temperature fused, the power supply circuit of the heating element 2 is disconnected, so that the heating device stops working, which can ensure the safety of the heating device. For example, in the case that there is only a small amount of water or even no water in the heating cavity, the heating device is out of control and abnormally heated, the fuse 8 receives high-temperature heat of the heating device, the fuse 8 is high-temperature fused, at this time, the fuse 8 can disconnect the heating element 2 of the heating device to stop heating work, thereby ensuring the safety of the user.

[0084] When the heating chamber 11 is out of control and the temperature rises abnormally, the air heated by the heating element 2 rises and then transfers heat to the shell 1. The top wall 114 of the heating chamber 11 of the shell 1 has more heat gathering and the temperature rises faster. Therefore, when the fuse 8 is installed on the outer surface of the top wall 114 of the heating chamber 11, the fuse 8 is in contact with the outer surface of the top wall 114 of the heating chamber 11. The abnormal temperature rise in the shell 1 is transferred to the fuse 8 through the heat of the top wall of the heating chamber 11 faster, which is more conducive to the rapid fusing action of the fuse 8 in the case of out-of-control heating device.

[0085] It can be understood that the fuse 8 can also be arranged at other positions of the shell 1, which are within the protection scope of the present application.

[0086] In an exemplary embodiment, as shown in Figures 20 to 22 , the outer surface of the top wall 114 of the heating chamber 11 is provided with a containing groove 115 and a cover member 116. The cover member 116 is arranged on the opening end of the containing groove 115, and the fuse 8 is installed in the containing groove 115.

[0087] Specifically, the outer surface of the top wall 114 of the heating chamber 11 is provided with a containing groove 115 and a cover member 116. The cover member 116 can be opened to replace the fuse 8, and the cover member 116 can be closed to form a chamber for placing the fuse 8. This structure is simple in design, easy to process, assemble and disassemble. It can be easily understood that the containing groove 115 and the cover member 116 have the function of protecting the fuse 8 from external damage.

[0088] In an exemplary embodiment, the heating element 2 is arranged as a heating rod, and the fuse 8 is arranged in parallel and spaced apart from at least a portion of the heating rod, and the center lines of the parallel portions of the heating rod and the fuse 8 are located in the same vertical plane.

[0089] In other words, when the heating rod is out of control and the temperature of the gas in the heating chamber 11 rises abnormally, the fuse 8 is located directly above the heating rod. The high-temperature gas in the heating chamber 11 rises and first gathers heat to the top wall 114 of the heating chamber 11 directly above the heating rod, and then transfers the heat to the fuse 8 in contact with the top wall 114 of the heating chamber 11. Therefore, the fuse 8 located directly above the heating rod can receive the rising heat in the heating chamber 11 faster and perform the fusing protection action in time.

[0090] As shown in Figure 1 , Figure 2 and Figure 15As shown, the mounting steps of the heating device of the embodiment of the present application are as follows: connecting the heating element 2 to the mounting support 5, inserting the flow guide 4 into the space enclosed by the heating element 2 and the mounting support 5, and then inserting the heating element 2 and the flow guide 4 into the heating cavity 11, so that the heating element 2, the inner wall of the heating cavity 11 and the flow guide 4 enclose the heating flow channel 113, the first temperature sensor 6 is inserted into the first insertion hole 161 of the first mounting seat 16, the second temperature sensor 7 is inserted into the second insertion hole 171 of the second mounting seat 17, the temperature control switch assembly 3 is inserted into the temperature measurement cavity 13, the fuse 8 is placed in the accommodating groove 115, the fuse 8 and the circuit of the heating device are connected in series, and then the cover 116 is pressed on the slot of the accommodating groove 115.

[0091] The embodiment of the present application provides a toilet, which comprises the heating device according to any one of the above example embodiments, and the toilet comprises a device for human body cleaning, and the heating device is used for providing clean hot water for the device for human body cleaning on the toilet.

[0092] Specifically, the toilet of the embodiment of the present application comprises the heating device according to any one of the above example embodiments, and therefore has the structural features and advantages of the heating device according to any one of the above example embodiments, which will not be described herein.

[0093] In the description of the present application, it should be pointed out that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "edge", "opposite", "four corners", "periphery" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the structure has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application.

[0094] In the description of the embodiment of the present application, unless otherwise explicitly specified and limited, the terms "connection", "direct connection", "indirect connection", "fixed connection", "installation", "assembly" should be understood in a broad sense, for example, can be fixed connection, can be detachable connection, or integrally connected; the terms "installation", "connection", "fixed connection" can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0095] Although the disclosed embodiments of the present application are as above, the content described is only the adopted embodiments for facilitating the understanding of the present application, and is not used to limit the present application. Any person skilled in the art of the present application, without departing from the spirit and scope of the present application disclosed, can make any modification and change in the implementation form and details, but the patent protection scope of the present application shall be subject to the definition of the appended claims.

Claims

1. A heating device, characterized in that The heating device comprises: a shell provided with a heating cavity and a mixing cavity, the heating cavity is provided with a first water inlet, and the mixing cavity is provided with a first water outlet; and a heating element arranged in the heating cavity for heating water in the heating cavity; wherein the heating device is further provided with a temperature measuring cavity and a temperature control switch assembly, the heating cavity, the temperature measuring cavity and the mixing cavity are sequentially communicated along the water flow direction in the heating device; the temperature control switch assembly is arranged at the temperature measuring cavity and is configured to detect the water temperature in the temperature measuring cavity and to perform overheat protection on the heating device based on the water temperature in the temperature measuring cavity.

2. The heating device of claim 1, wherein: The temperature measuring cavity is provided with a first opening, and the temperature control switch assembly is arranged on the first opening, and a temperature sensing head of the temperature control switch assembly directly contacts water in the temperature measuring cavity.

3. The heating device of claim 2, wherein, The temperature measuring cavity is provided with a temperature measuring flow channel slot, one end of the temperature measuring flow channel slot in the depth direction is open to form a slot opening, and the first opening comprises the slot opening of the temperature measuring flow channel slot.

4. The heating device according to any one of claims 1 to 3, characterized in that The mixing cavity is located on the upper side of the heating cavity, the temperature measuring cavity is located on the upper side of the heating cavity, the top outer wall of the shell is provided with a mounting boss, the temperature measuring cavity is arranged on the mounting boss, and the temperature control switch assembly is mounted to the mounting boss.

5. The heating device of claim 4, wherein, The heating device further comprises a flow guide element, the flow guide element is located in the heating cavity, and the heating element, the inner wall of the heating cavity and the flow guide element enclose a heating flow channel. The shell is provided with a first communication flow channel communicating the temperature measuring cavity and the heating cavity, the flow guide element is provided with a flow guide channel, the temperature measuring cavity is arranged close to the water outlet end of the heating flow channel, and the input end and the output end of the flow guide channel are respectively communicated with the heating flow channel and the first communication flow channel.

6. The heating device according to any one of claims 1 to 3, wherein the mixing cavity is located on the upper side of the heating cavity, and the temperature measuring cavity is located on the side surface of the heating cavity and the mixing cavity; the heating device further comprises a flow guide element, the flow guide element is located in the heating cavity, and the heating element, the inner wall of the heating cavity and the flow guide element enclose a heating flow channel; the side surface of the shell is provided with a second opening, the heating device further comprises a mounting support arranged on the second opening, the heating element is arranged to be inserted into the heating cavity from the second opening and supported on the mounting support, the temperature measuring cavity is located on the end surface of the flow guide element facing the second opening, and the temperature control switch assembly is mounted on the mounting support.

7. The heating device according to any one of claims 1 to 3, characterized in that The heating device further comprises a first temperature sensor and a second temperature sensor, a probe of the first temperature sensor is inserted into the inner cavity of the first water inlet, the shell is provided with a second communication flow channel communicating the temperature measuring cavity and the mixing cavity, and a probe of the second temperature sensor is inserted into the inner cavity of the second communication flow channel.

8. The heating device of claim 7, wherein, The shell is provided with a first mounting seat and a second mounting seat, the first mounting seat is provided with a first insertion hole communicated with the first water inlet, the second mounting seat is provided with a second insertion hole communicated with the second communication flow channel, the first temperature sensor is connected to the first mounting seat and inserted into the first insertion hole, and the second temperature sensor is connected to the second mounting seat and inserted into the second insertion hole. The first mounting seat and the second mounting seat are located on the same side of the shell, the first mounting seat, the second mounting seat and the first water inlet are arranged close to the mixing cavity, and the center lines of the first and second insertion holes are parallel.

9. The heating device according to any one of claims 1 to 3, characterized in that The heating device further comprises a fuse, which is installed to the outer surface of the top wall of the heating cavity and is in contact with the outer surface of the top wall of the heating cavity.

10. The heating device of claim 9, wherein, The outer surface of the top wall of the heating cavity is provided with a containing groove and a gland, the gland is arranged on the opening end of the containing groove, and the fuse is installed into the containing groove.

11. A toilet characterized by The heating device comprises the heating device according to any one of claims 1 to 10.

Images