Temperature sensing module conducting heat through anode bar and electric water heater

Abstract

The invention discloses a temperature sensing module conducting heat through an anode bar and an electric water heater. The temperature sensing module conducting heat through the anode bar comprises a temperature controller, the anode bar and a flange plate, the anode bar is fixed to the flange plate in a penetrating mode, and the temperature controller is attached to the portion, located on the outer side of the flange plate, of the anode bar. The temperature controller is attached to the portion, located on the outer side of the flange plate, of the anode bar, temperature sensing of the temperature controller is carried out, and the temperature sensing efficiency and accuracy are improved. According to the electric water heater, the heating pipe heats the anode bar, the temperature of the anode bar rises, heat is conducted to the anode bar part on the outer side of the flange plate, and the temperature controller is tightly attached to the anode bar for temperature sensing, so that compared with the mode that the temperature controller is directly attached to the flange plate, the temperature sensing timeliness and accuracy of the temperature controller are improved; the problem that the action of the temperature controller is slow during abnormal overtemperature can be solved, and insulation installation of the anode bar and the heating pipe is not damaged synchronously.

Description

Technical Field

[0001] The invention belongs to the field of electric water heaters, and in particular relates to a temperature sensing module and an electric water heater relying on heat conduction of an anode rod. Background Art

[0002] In an electric water heater, the heating tube in the inner tank is fixed on the flange, and the heating tube body is provided with a cold end. The cold end of the heating tube body is close to the flange to prevent the flange from overheating when the heating tube is heated normally. A thermostat is also provided on the outside of the inner tank to sense the temperature and cut off the power when the thermostat in the inner tank fails and the heating tube continues to heat, causing the water heater to overheat. This thermostat is generally a wall-mounted thermostat, which is directly attached to the flange to sense temperature. However, due to the existence of the cold end of the heating tube, the heat conduction of the flange is slow, resulting in the temperature of the thermostat tripping when it senses the abnormal temperature during abnormal testing. The temperature has greatly exceeded the temperature resistance point of the foaming material and plastic parts, resulting in smoke, which affects the safety of the water heater.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a temperature sensing module that relies on heat conduction of an anode rod and can sense temperature efficiently and quickly.

[0005] A second object of the present invention is to provide an electric water heater.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A temperature sensing module that relies on heat conduction from an anode rod, including a temperature controller, an anode rod, and a flange.

[0008] Anode rod, fixed on the flange,

[0009] The thermostat is attached to the part of the anode rod located outside the flange.

[0010] The temperature controller is placed against the portion of the anode rod located outside the flange to sense the temperature, thereby improving the temperature sensing efficiency and accuracy.

[0011] Taking into account that the existing electric water heater has an anode rod for protecting the inner tank, a part of the anode rod is located in the inner tank, a part passes through the flange and is fixed on the flange, and the heating tube is insulated from the anode rod. The heat conduction of the anode rod is applied to the scheme of the present invention. The heating tube itself generates heat to heat the anode rod, and the temperature of the anode rod rises and the heat is conducted to the anode rod part outside the flange. Since the thermostat is close to the anode rod for temperature sensing, the timeliness and accuracy of the temperature sensing of the thermostat are increased compared to the thermostat directly attached to the flange, which can solve the problem of slow action of the thermostat during abnormal over-temperature, and simultaneously does not damage the insulation installation of the anode rod and the heating tube.

[0012] Furthermore, the temperature sensing surface of the temperature controller is in contact with the end surface of the anode rod core.

[0013] The anode rod includes an anode rod core and an anode material wrapped around part of the anode rod core. Part of the anode rod core is exposed, and the anode rod is installed on the flange through the through hole on the flange through this part of the exposed anode rod core. Therefore, the temperature controller installed outside the inner tank has a temperature sensing surface attached to the end face of the anode rod core, that is, the end face of the exposed anode rod core, in order to sense the temperature in time and accurately.

[0014] Furthermore, the anode rod is fixed on the flange through the anode rod nut, and the temperature sensing surface of the temperature controller is also close to the end surface of the anode rod nut.

[0015] After the anode rod passes through the through hole on the flange through the exposed anode rod core, it is installed on the flange with the anode rod nut. That is, the anode rod core has threads, which are threadedly connected with the anode rod nut to fix the anode rod on the flange.

[0016] In order to further increase the temperature sensing area of ​​the thermostat, and thus improve the timeliness and accuracy of the temperature sensing of the thermostat, the temperature sensing surface of the thermostat is also attached to the end face of the anode rod nut, that is, the temperature sensing surface of the thermostat is also attached to the end face of the anode rod nut away from the flange. Since the thermostat is in close contact with the end face of the anode rod core and the end face of the anode rod nut for temperature sensing, the temperature sensing contact area of ​​the thermostat is further increased, and compared with the thermostat directly attached to the flange, the timeliness and accuracy of temperature sensing are increased, and the problem of abnormal over-temperature controller slow action can be solved.

[0017] Furthermore, the temperature sensing surface of the thermostat is also in contact with the outer peripheral surface of the anode rod nut.

[0018] In order to further increase the temperature sensing area of ​​the thermostat and thus improve the timeliness and accuracy of the temperature sensing of the thermostat, the temperature sensing surface of the thermostat is also attached to the outer peripheral surface of the anode rod nut. At this time, the temperature sensing surface of the thermostat is attached to the end face of the anode rod core and the end face and outer peripheral surface of the nut, which further increases the temperature sensing contact area of ​​the thermostat. Compared with the thermostat directly attached to the flange, the timeliness and accuracy of the temperature sensing are increased, and the problem of abnormal slow action of the thermostat can be solved.

[0019] When the temperature sensing surface of the thermostat is in contact with the end faces of the anode rod core and the nut, if the end face of the anode rod nut is flush with the end face of the anode rod core, the temperature sensing surface of the thermostat is a plane; if the end face of the anode rod core protrudes from the end face of the anode rod nut, the temperature sensing surface of the thermostat is a stepped surface.

[0020] By using different settings of the temperature sensing surface shape of the temperature controller to adapt to different assembly structures of the end face of the anode rod core and the end face of the nut, the temperature sensing area can be increased in different situations, thereby achieving a better temperature sensing effect.

[0021] In the above-mentioned structure, the temperature controller is fixed on the flange. Alternatively, in the above-mentioned structure, except for the structure that the temperature sensing surface of the temperature controller is close to the end surface of the anode rod core and the end surface and the outer peripheral surface of the nut, the temperature controller is fixed on the anode rod nut.

[0022] Whether the thermostat is fixed on the flange or on the anode rod nut, the thermostat can be fixed by screws or buckles.

[0023] When the thermostat is fixed on the anode rod nut and fixed by a buckle, the anode rod nut adopts a stepped shape, which includes two parts with different outer diameters along the axial direction. The part of the anode rod nut close to the flange has a small outer diameter, and the part of the anode rod nut away from the flange has a large outer diameter. One end of the buckle is connected to the thermostat, and the other end is buckled on the end face of the part with the large outer diameter of the anode rod nut facing away from the thermostat.

[0024] The present invention also provides an electric water heater having the above-mentioned temperature sensing module relying on heat conduction of the anode rod.

[0025] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0026] The present invention provides a temperature sensing module and an electric water heater that rely on heat conduction of an anode rod, wherein the temperature sensing module that relies on heat conduction of an anode rod includes a thermostat, an anode rod, and a flange, wherein the anode rod is inserted and fixed on the flange, and the thermostat is attached to the portion of the anode rod located outside the flange. By attaching the thermostat to the portion of the anode rod located outside the flange, the temperature sensing of the thermostat is performed, thereby improving the efficiency and accuracy of the temperature sensing. In the electric water heater, the anode rod is heated by the heating tube itself, and the temperature of the anode rod is increased and the heat is transferred to the portion of the anode rod outside the flange. Since the thermostat senses the temperature in close contact with the anode rod, the timeliness and accuracy of the temperature sensing of the thermostat are increased compared to when the thermostat is directly attached to the flange, and the problem of slow action of the thermostat during abnormal over-temperature can be solved, and the insulation installation of the anode rod and the heating tube is not damaged at the same time.

[0027] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0029] Figure 1 It is a schematic diagram of the installation of a flange, an anode rod, a heating tube and a temperature controller of a temperature sensing module that relies on heat conduction of an anode rod according to the present invention;

[0030] Figure 2 It is a schematic diagram of the installation of the temperature controller on the anode rod nut in the present invention;

[0031] Figure 3 It is a schematic diagram of the installation of the temperature controller on the anode rod nut in the present invention;

[0032] Figure 4 It is an installation schematic diagram of the temperature controller fixed on the flange in the present invention.

[0033] In the figure: 1. flange; 2. heating tube; 3. anode rod; 4. anode rod core; 5. thermostat; 6. screw; 7. anode rod nut; 8. screw mounting column.

[0034] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] like Figures 1 to 3 As shown, the present invention provides a temperature sensing module that relies on heat conduction of an anode rod 3 , including a temperature controller 5 , an anode rod 3 , and a flange 1 .

[0039] The anode rod 3 is passed through and fixed on the flange 1.

[0040] The temperature controller 5 is attached to the portion of the anode rod 3 located outside the flange 1 .

[0041] The temperature controller 5 is placed against the portion of the anode rod 3 located outside the flange 1 to sense the temperature, thereby improving the efficiency and accuracy of the temperature sensing.

[0042] Considering that the existing electric water heater has an anode rod 3 for protecting the inner tank, a part of the anode rod 3 is located in the inner tank, a part passes through the flange 1 and is fixed on the flange 1, and the heating tube 2 is insulated from the anode rod 3. The heat conduction of the anode rod 3 is applied to the solution of the present invention. The heating tube 2 generates heat by itself and heats the anode rod 3. The temperature of the anode rod 3 increases and the heat is conducted to the part of the anode rod 3 outside the flange 1. Since the thermostat 5 is closely attached to the anode rod 3 for temperature sensing, compared with the thermostat 5 being directly attached to the flange 1, the timeliness and accuracy of the temperature sensing of the thermostat 5 are increased, and the problem of slow action of the thermostat 5 during abnormal over-temperature can be solved. At the same time, the insulation installation of the anode rod 3 and the heating tube 2 is not damaged.

[0043] The anode rod 3 includes an anode rod core 4 and an anode material wrapped around a portion of the anode rod core 4, and a portion of the anode rod core 4 is exposed. The anode rod 3 is installed on the flange 1 through the through hole on the flange 1 through this portion of the exposed anode rod core 4. Therefore, the temperature controller 5 installed outside the inner tank has a temperature sensing surface attached to the end face of the anode rod core 4, that is, the end face of the exposed anode rod core 4, in order to sense the temperature in time and accurately.

[0044] After the anode rod 3 passes through the through hole on the flange 1 through the exposed anode rod core 4, it is installed on the flange 1 in conjunction with the anode rod nut 7. That is, the anode rod core 4 has threads that are threadedly connected to the anode rod nut 7 to fix the anode rod 3 on the flange 1.

[0045] In order to further increase the temperature sensing area of ​​the thermostat 5, and thus improve the timeliness and accuracy of the temperature sensing of the thermostat 5, the temperature sensing surface of the thermostat 5 is also attached to the end surface of the anode rod nut 7, that is, the temperature sensing surface of the thermostat 5 is also attached to the end surface of the anode rod nut 7 away from the flange 1. Since the thermostat 5 senses temperature by attaching to the end surface of the anode rod core 4 and the end surface of the nut, the temperature sensing contact area of ​​the thermostat 5 is further increased, and the timeliness and accuracy of the temperature sensing are increased compared to the case where the thermostat 5 is directly attached to the flange 1, and the problem of abnormal over-temperature slow action of the thermostat 5 can be solved.

[0046] Furthermore, in order to further increase the temperature-sensing area of ​​the thermostat 5, and thereby improve the timeliness and accuracy of the temperature sensing of the thermostat 5, the temperature-sensing surface of the thermostat 5 is also attached to the outer peripheral surface of the anode rod nut 7. At this time, the temperature-sensing surface of the thermostat 5 is attached to the end face of the anode rod core 4 and the end face and outer peripheral surface of the nut, which further increases the temperature-sensing contact area of ​​the thermostat 5. Compared with the thermostat 5 being directly attached to the flange 1, the timeliness and accuracy of the temperature sensing are increased, and the problem of abnormal over-temperature slow action of the thermostat 5 can be solved.

[0047] When the temperature sensing surface of the thermostat 5 is in contact with the end faces of the anode rod core 4 and the anode rod nut 7, if the end face of the anode rod nut 7 is flush with the end face of the anode rod core 4, the temperature sensing surface of the thermostat 5 is a plane; if the end face of the anode rod core 4 protrudes from the end face of the anode rod nut 7, the temperature sensing surface of the thermostat 5 is a stepped surface.

[0048] In order to adapt to various installation situations, the temperature sensing surface of the thermostat 5 can be made into a flat surface or a stepped surface to adapt to different assembly situations of the anode rod core 4 and the anode rod nut 7. At the same time, in order to make the temperature sensing surface of the thermostat 5 close to the outer peripheral surface of the anode rod nut 7, it is necessary to make the temperature sensing surface of the thermostat 5 into the same shape as the outer peripheral surface of the anode rod nut 7, so that the temperature sensing surface of the thermostat 5 is buckled on the end surface of the anode rod 3, the end surface of the anode rod nut 7 and the outer peripheral surface, so as to maximize the temperature sensing area and maximize the timeliness and accuracy of temperature sensing.

[0049] By using different shapes of the temperature sensing surface of the temperature controller 5 to adapt to different assembly structures of the end faces of the anode rod core 4 and the nut, the temperature sensing area can be increased in different situations, thereby achieving a better temperature sensing effect.

[0050] When the temperature sensing surface of the thermostat 5 is against the end surface of the anode rod core 4, or the temperature sensing surface of the thermostat 5 is against the end surface of the anode rod core 4 and the end surface of the anode rod nut 7 for temperature sensing, or the temperature sensing surface of the thermostat 5 is against the end surface of the anode rod core 4 and the end surface of the anode rod nut 7 and the outer peripheral surface of the anode rod nut 7, the thermostat 5 is fixed on the flange 1. In order to facilitate the fixing of the thermostat 5 on the flange 1, a screw mounting column 8 is provided on the flange 1, and the thermostat 5 is fixed on the flange 1 through the threaded connection of the screw 6 and the screw mounting column 8.

[0051] like Figure 4 As shown, the temperature sensing surface of the thermostat 5 is close to the end surface of the anode rod core 4 and the end surface of the nut for temperature sensing. A lug is provided on each side of the thermostat 5. A hole for a screw 6 to pass through is provided on the lug. Two screw mounting columns 8 are correspondingly provided on the flange 1. The thermostat 5 is fixed to the flange 1 by threaded connection between the screw 6 and the screw mounting columns 8.

[0052] In another embodiment, when the temperature sensing surface of the thermostat 5 is against the end surface of the anode rod core 4, or the temperature sensing surface of the thermostat 5 is against the end surface of the anode rod core 4 and the end surface of the anode rod nut 7 for temperature sensing, the thermostat 5 is fixed on the anode rod nut 7. In order to facilitate the fixing of the thermostat 5 on the anode rod nut 7, a screw mounting column 8 is provided on the anode rod nut 7, and the thermostat 5 is fixed on the anode rod nut 7 by threaded connection between the screw 6 and the screw mounting column 8.

[0053] like Figure 2 As shown, the temperature sensing surface of the thermostat 5 is close to the end surface of the anode rod core 4 and the end surface of the nut for temperature sensing. A lug is provided on each side of the thermostat 5. A hole for a screw 6 to pass through is provided on the lug. Two screw mounting posts 8 are correspondingly provided on the side of the anode rod nut 7 facing the thermostat 5. The thermostat 5 is fixed to the anode rod nut 7 by threaded connection between the screw 6 and the screw mounting posts 8.

[0054] When the temperature sensing surface of the thermostat 5 is in contact with the end surface of the anode rod core 4 and the end surface of the anode rod nut 7 for temperature sensing, and the thermostat 5 is fixed on the anode rod nut 7, in order to have enough space to set the screw mounting column 8, the end surface of the anode rod nut 7 can be made larger than the temperature sensing surface of the thermostat 5, and the screw mounting column 8 is set on the part of the end surface of the anode rod nut 7 where the temperature sensing surface of the thermostat 5 cannot be contacted.

[0055] In the above-described structural arrangement, or, in the above-described structural arrangement, except for the structural arrangement in which the temperature sensing surface of the temperature controller 5 is in contact with the end surface of the anode rod core 4 and the end surface and the outer peripheral surface of the anode rod nut 7, the temperature controller 5 is fixed on the anode rod nut 7.

[0056] No matter the thermostat 5 is fixed on the flange 1 or on the anode rod nut 7 , the thermostat 5 may be fixed by means of screws 6 or by means of other structures, for example, by means of a snap connection.

[0057] When the thermostat 5 is fixed on the flange 1 , a buckle is provided on the flange 1 , and a buckle is also provided on the thermostat 5 . The two buckles are buckled with each other to fix the thermostat 5 on the flange 1 .

[0058] When the thermostat 5 is fixed on the anode rod nut 7, a buckle is provided on the anode rod nut 7, and a buckle is also provided on the thermostat 5, and the two buckles are buckled with each other to fix the thermostat 5 on the anode rod nut 7. Alternatively, only the buckle is provided on the thermostat 5, and the buckle is directly buckled on the end face of the anode rod nut 7 away from the thermostat 5, thereby fixing the thermostat 5 on the anode rod nut 7. In order to enable the buckle to be directly buckled on the end face of the anode rod nut 7 facing away from the temperature controller 5, and at the same time ensure that the anode rod nut 7 can fix the anode rod 3 to the flange 1, the anode rod nut 7 adopts a stepped shape, which includes two parts with different outer diameters along the axial direction. The part of the anode rod nut 7 close to the flange 1 has a small outer diameter, and the part of the anode rod nut 7 away from the flange 1 has a large outer diameter. In this way, the anode rod nut 7 can fix the anode rod 3, and there is a gap between the part with the large outer diameter and the flange 1, so that the buckle can be directly buckled on the end face of the part with the large outer diameter of the anode rod nut 7 facing away from the thermostat 5.

[0059] The present invention also provides an electric water heater having the above-mentioned temperature sensing module relying on heat conduction of the anode rod.

[0060] The present invention provides a temperature sensing module and an electric water heater that rely on heat conduction of an anode rod, wherein the temperature sensing module that relies on heat conduction of an anode rod includes a thermostat, an anode rod, and a flange, wherein the anode rod is inserted and fixed on the flange, and the thermostat is attached to the portion of the anode rod located outside the flange. By attaching the thermostat to the portion of the anode rod located outside the flange, the temperature sensing of the thermostat is performed, thereby improving the efficiency and accuracy of the temperature sensing. In the electric water heater, the anode rod is heated by the heating tube itself, and the temperature of the anode rod is increased and the heat is transferred to the portion of the anode rod outside the flange. Since the thermostat senses the temperature in close contact with the anode rod, the timeliness and accuracy of the temperature sensing of the thermostat are increased compared to when the thermostat is directly attached to the flange, and the problem of slow action of the thermostat during abnormal over-temperature can be solved, and the insulation installation of the anode rod and the heating tube is not damaged at the same time.

[0061] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. A temperature sensing module relying on heat conduction of an anode rod, characterized in that: Including thermostat, anode rod, flange, Anode rod, fixed on the flange, The thermostat is attached to the part of the anode rod located outside the flange.

2. A temperature sensing module relying on heat conduction of an anode rod according to claim 1, characterized in that: The temperature sensing surface of the temperature controller is against the end surface of the anode rod core located outside the flange.

3. A temperature sensing module relying on heat conduction of an anode rod according to claim 2, characterized in that: The anode rod is fixed on the flange through the anode rod nut, and the temperature sensing surface of the temperature controller is also close to the end face of the anode rod nut.

4. A temperature sensing module relying on heat conduction of an anode rod according to claim 3, characterized in that: The temperature sensing surface of the thermostat is also in contact with the outer peripheral surface of the anode rod nut.

5. A temperature sensing module relying on heat conduction of an anode rod according to claim 3, characterized in that: The temperature sensing surface of the thermostat is a plane, and the end surface of the anode rod nut is flush with the end surface of the anode rod core.

6. A temperature sensing module relying on heat conduction of an anode rod according to claim 3 or 4, characterized in that: The temperature sensing surface of the temperature controller is a stepped surface, and the end surface of the anode rod core protrudes from the end surface of the anode rod nut.

7. A temperature sensing module relying on heat conduction of an anode rod according to any one of claims 1 to 5, characterized in that: The thermostat is fixed on the flange.

8. A temperature sensing module relying on heat conduction of an anode rod according to any one of claims 1-3 and 5, characterized in that: The thermostat is fixed on the anode rod nut.

9. A temperature sensing module relying on heat conduction of an anode rod according to claim 8, characterized in that: The thermostat is fixed by a buckle, and the anode rod nut is in a stepped shape, which includes two parts with different outer diameters along the axial direction. The part of the anode rod nut close to the flange has a small outer diameter, and the part of the anode rod nut away from the flange has a large outer diameter. One end of the buckle is connected to the thermostat, and the other end is buckled on the end face of the part with the large outer diameter of the anode rod nut facing away from the thermostat.

10. An electric water heater, characterized in that: A temperature sensing module relying on heat conduction of an anode rod as claimed in any one of claims 1 to 9.

Images