Heater and electrical equipment

Abstract

The embodiment of the utility model relates to a heater and electrical equipment. The heater comprises a supporting body and a functional layer. The supporting body is provided with a runner, a first opening and a second opening, the functional layer comprises a heating layer and a temperature sensing layer, the supporting body is coated with the functional layer, the heating layer is used for heating, and the temperature sensing layer is used for detecting temperature. The temperature of the fluid flowing through the supporting body is detected through the heater and the temperature sensing layer, so that on one hand, the temperature of the fluid flowing through the supporting body can be detected without additionally arranging a temperature sensing device, and the user experience is good; on the other hand, the heating layer and the temperature sensing layer are both wrapped on the supporting body, so that the resistance is small when the fluid flows into the flow channel from the outside of the supporting body, and the fluid flows smoothly; on the other hand, due to the fact that the temperature sensing layer wraps the supporting body, the temperature sensing layer can detect the temperature of the fluid in the flow channel in time, then the temperature of the fluid can be controlled in time, the fluctuation of the temperature of the fluid is small, and the stability of the fluid is high.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of heaters. Background Art

[0002] Many electrical appliances need to have a heating function and use a heater. For example, the battery of a new energy vehicle cannot work in a cold environment, and a heater is needed to heat the battery to a certain temperature range so that the battery can start working. Another example is a smart toilet. In a cold environment, in order to get a better experience, the cleaning water needs to be heated to a certain temperature.

[0003] In the process of implementing the present application, the applicant of the present application found that: currently, when using a heater, a temperature sensing device needs to be additionally configured to detect the heating temperature of the heater, so that the heater can be more accurately and comfortably applied to electrical equipment, and the user experience is not good. Utility Model Content

[0004] In view of the above problems, the embodiments of the present application provide a heater and an electrical device, which overcome the above problems or at least partially solve the above problems.

[0005] According to one aspect of an embodiment of the present application, a heater is provided, comprising a support body and a functional layer; the support body is provided with a flow channel and a first opening and a second opening connected to the flow channel, the first opening and the second opening are used for fluid to flow into and out of the flow channel; the functional layer comprises a heating layer and a temperature sensing layer, the functional layer is coated outside the support body, the first opening is exposed, the second opening is exposed, the heating layer is used for heating, and the temperature sensing layer is used for detecting temperature.

[0006] In an optional manner, the heating layer is coated outside the supporting body, and the temperature-sensitive layer is coated outside the heating layer; or, the temperature-sensitive layer is coated outside the supporting body, and the heating layer is coated outside the temperature-sensitive layer.

[0007] In an optional manner, the heating layer includes a heating element, which is bent multiple times to form a plurality of first protrusions and a plurality of first gaps, and the plurality of first protrusions and the plurality of first gaps are arranged at intervals; the temperature sensing layer includes a temperature sensing element, which is bent multiple times to form a plurality of second protrusions and a plurality of second gaps, and the plurality of second protrusions and the plurality of second gaps are arranged at intervals; a plurality of the first protrusions are embedded in a plurality of the second gaps, and a plurality of the second protrusions are embedded in a plurality of the first gaps.

[0008] In an optional manner, the heating layer includes a first metal piece, the temperature-sensitive layer includes temperature-sensitive slurry, and the first metal piece is used for an external power supply; or, the temperature-sensitive layer includes a second metal piece, the heating layer includes heat-generating slurry, and the heat-generating slurry is used for an external power supply.

[0009] In an optional manner, the heating layer is at least partially made of tungsten, and the temperature sensing layer is at least partially made of a thermosensitive material.

[0010] In an optional manner, the heater further includes an inner insulating layer, which is coated between the support body and the functional layer; and / or the heater further includes an outer insulating layer, which is coated on the functional layer.

[0011] In an optional manner, along the circumference of the support body, there is a gap between one end of the functional layer and the other end of the functional layer.

[0012] In an optional manner, the heating layer includes a heating circuit, a first electrode and a second electrode, the two ends of the heating circuit are respectively connected to the first electrode and the second electrode, and the first electrode and the second electrode are both used to connect to an external circuit; the temperature sensing layer includes a temperature sensing circuit, a third electrode and a fourth electrode, the two ends of the temperature sensing circuit are respectively connected to the third electrode and the fourth electrode, and the third electrode and the fourth electrode are both used to connect to an external circuit.

[0013] In an optional manner, the support body is a ceramic tube, the heater further includes a plug, the plug blocks one port of the ceramic tube, the other port of the ceramic tube forms the first opening, and the second opening is arranged on the side wall of the ceramic tube.

[0014] According to another aspect of the embodiments of the present application, an electrical device is provided, comprising the above-mentioned heater.

[0015] The beneficial effects of the embodiments of the present application include: providing a heater, including a support body and a functional layer; the support body is provided with a flow channel and a first opening and a second opening connected to the flow channel, the first opening and the second opening are used for fluid to flow into and out of the flow channel; the functional layer includes a heating layer and a temperature sensing layer, the functional layer is coated outside the support body, the first opening is exposed, the second opening is exposed, the heating layer is used for heating, and the temperature sensing layer is used for detecting temperature. The temperature of the fluid flowing through the support body is detected by the heater and the temperature-sensitive layer. Therefore, on the one hand, the temperature of the fluid flowing through the support body can be detected without the need for an additional temperature-sensing device, and the user experience is good. On the other hand, since the heating layer and the temperature-sensitive layer are both coated on the support body, the resistance of the fluid flowing from the outside of the support body into the flow channel is small, and the fluid flows smoothly. On the other hand, since the temperature-sensitive layer is coated on the support body, that is, the temperature-sensitive layer and the fluid in the flow channel are separated by the wall of the support body, or by the wall of the support body and the temperature-sensitive layer, the temperature-sensitive layer can detect the temperature of the fluid in the flow channel in a timely manner, and then can accurately and timely control the temperature of the fluid, so that the temperature fluctuation of the fluid is small and its stability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0017] Figure 1 is a schematic diagram of an implementation method of a heater provided in an embodiment of the present application;

[0018] Figure 2 It is a schematic diagram of an implementation method of the functional layer provided in an embodiment of the present application;

[0019] Figure 3 is a schematic diagram of another implementation of the heater provided in an embodiment of the present application;

[0020] Figure 4 is an exploded schematic diagram of another implementation of the heater provided in an embodiment of the present application;

[0021] Figure 5 is a schematic diagram of a heater provided in an embodiment of the present application from another perspective;

[0022] Figure 6 The embodiment of the present application provides Figure 5 Sectional view of AA in the middle;

[0023] Figure 7It is a schematic diagram of an implementation method of the functional layer provided in an embodiment of the present application;

[0024] Figure 8 It is a schematic diagram of an implementation method of the functional layer provided in an embodiment of the present application;

[0025] Fig. 9 is an exploded schematic diagram of another implementation of the heater provided in an embodiment of the present application;

[0026] Fig.10 is a schematic diagram of another implementation of the heater provided in the embodiment of the present application;

[0027] Fig.11 is an exploded schematic diagram of another implementation of the heater provided in the embodiment of the present application;

[0028] Fig.12 The embodiment of the present application provides Fig.10 Cross-sectional view of BB.

[0029] The reference numerals are as follows:

[0030] Heater 100, support body 10, functional layer 10f, heating layer 20, temperature sensing layer 30, plug 40, abutment member 50, flange 60, first insulating layer 70, second insulating layer 80, third insulating layer 90, inner insulating layer 70a, outer insulating layer 70b;

[0031] A flow channel 11, a first opening 12, and a second opening 13;

[0032] Heating element 20f, first protrusion 20f1, first gap 20f2;

[0033] Temperature sensing element 30f, second protrusion 30f1, second gap 30f2;

[0034] A first metal member 201, a temperature-sensitive paste 301; a first terminal 2011; a second terminal 2012; a third terminal 3011, a fourth terminal 3012;

[0035] Heat generating paste 202, second metal member 302; first joint 2021; second joint 2022; third joint 3021, fourth joint 3022;

[0036] Gap 10f1;

[0037] Heating circuit 21, first electrode 22, second electrode 23; first gap 20a;

[0038] A first connecting portion 201f, a second connecting portion 202f;

[0039] Temperature sensing circuit 31, third electrode 32, fourth electrode 33; second gap 30a;

[0040] The third connection part 301f, the fourth connection part 302f. DETAILED DESCRIPTION

[0041] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are for illustrative purposes only.

[0042] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0043] See also Figure 1 and Figure 2 The heater 100 provided in the embodiment of the present application includes a support body 10 and a functional layer 10f, wherein the support body 10 provides support for the functional layer 10f. The functional layer 10f is used for heating and detecting temperature. The functional layer 10f may be a composite layer having the functions of heating and detecting temperature, wherein the composite functional layer 10f includes a heating layer 20 having a heating function and a temperature sensing layer 30 having a temperature detection function. Figure 3 and Figure 4 The functional layer 10f may also include two layers, namely, a heating layer 20 with a heating function and a temperature sensing layer 30 with a temperature detection function. The heater 100 can heat the fluid and detect the temperature of the fluid without the need for an additional temperature sensing device. The heater 100 has a high degree of integration and a good user experience.

[0044] For the above-mentioned support body 10, please refer to Figure 3 The support body 10 is provided with a flow channel 11 and a first opening 12 and a second opening 13 connected to the flow channel 11 . The first opening 12 and the second opening 13 are used for fluid to flow into and out of the flow channel 11 .

[0045] It is understandable that when the first opening 12 is used for fluid to flow into the flow channel 11 , the second opening 13 is used for fluid to flow out of the flow channel 11 ; when the first opening 12 is used for fluid to flow out of the flow channel 11 , the second opening 13 is used for fluid to flow into the flow channel 11 .

[0046] It is worth noting that, in some embodiments, the number of the first openings 12 is multiple, the number of the second openings 13 is multiple, and one first opening 12 corresponds to one second opening 13, that is, a form of multiple inlets and multiple outlets is formed. In some embodiments, the number of the first openings 12 is multiple, the number of the second openings 13 is multiple, and the number of the first openings 12 and the number of the second openings 13 are not equal. In some embodiments, the first opening 12 is used for the fluid to flow into the flow channel 11, and the second opening 13 is used for the fluid to flow out of the flow channel 11. The number of the first opening 12 is one, and the number of the second openings 13 is multiple, that is, a form of one inlet and multiple outlets is formed. In some embodiments, the first opening 12 is used for the fluid to flow into the flow channel 11, and the second opening 13 is used for the fluid to flow out of the flow channel 11. The number of the first opening 12 is multiple, and the number of the second opening 13 is one, that is, a form of multiple inlets and one outlet is formed. Through the above-mentioned design of the number of the first opening 12 and the second opening 13, the application scenario of the heater 100 provided in the embodiment of the present application can be expanded.

[0047] It is worth noting that one of the functions of the support body 10 is to provide a flow channel 11 for the fluid and a first opening 12 and a second opening 13 connecting the flow channel 11. When the fluid flows into the flow channel 11 from outside the heater 100 and flows out of the flow channel 11, the fluid is heated. Therefore, the embodiment of the present application does not limit the specific shape of the support body 10, such as cylindrical, conical, cubic, etc., as long as the flow channel 11, the first opening 12 and the second opening 13 can be provided.

[0048] It is worth noting that another function of the support 10 is to provide support for the heating layer 20 and the temperature sensing layer 30, so the support 10 needs to have a certain strength. The material of the support 10 can be various, for example, the support 10 is a glass product or a ceramic product.

[0049] It is worth noting that one of the functions of the support 10 is to transfer the temperature of the heating layer 20 to the fluid in the flow channel 11, so when selecting the material of the support 10, the thermal conductivity of the material needs to be considered. In some embodiments, the support 10 is a ceramic product, which has high thermal conductivity, fast fluid heating rate, and high efficiency of the heater 100; in addition, due to the high flexural strength of the ceramic product, the service life of the heater 100 is long. In some other embodiments, the support 10 is an alumina ceramic product, or a zirconia ceramic product, or the support 10 is an alumina and zirconia composite ceramic product.

[0050] In some embodiments, the ceramic article is a ceramic tube, see Figure 4 The heater 100 further includes a plug 40, the plug 40 plugs one end of the ceramic tube, the other end of the ceramic tube forms the first opening 12, and the second opening 13 is arranged on the side wall of the ceramic tube. With this arrangement, a commercially available ceramic tube can be directly used as the support 10, and only the side wall opening is required to realize the flow of fluid in the ceramic tube, that is, there is no need to separately process and form the support 10, so at least the material cost of the support 10 is low, and the material control procedure of the support 10 is simple.

[0051] In addition, by plugging one end of the ceramic tube with the plug 40 , a dry area is formed at the plug 40 and a portion of the ceramic tube near the plug 40 , thereby facilitating the connection between the heater 100 and an external circuit.

[0052] In some embodiments, see Figure 5 and Figure 6 The ceramic tube has an abutment member 50 extending from its inner wall along the radial direction of the ceramic tube, and the plug 40 abuts against the abutment member 50, thereby limiting the position of the plug 40 through the abutment member 50, eliminating the risk of the plug 40 further entering the ceramic tube and blocking the second opening 13.

[0053] The functional layer 10f may be a composite layer having the functions of heating and detecting temperature. Figure 1 and Figure 2 The functional layer 10 f is coated on the outside of the support body 10 , the first opening 12 is exposed to allow fluid to flow into or out of the support body 10 , and the second opening 13 is exposed to allow fluid to flow into or out of the support body 10 .

[0054] In some embodiments, see Figure 2The heating layer 20 includes a first metal member 201, and the temperature-sensitive layer 30 includes a temperature-sensitive paste 301. The temperature-sensitive paste 301 covers the first metal member 201. The first metal member 201 has a first terminal 2011 and a second terminal 2012. The first terminal 2011 and the second terminal 2012 are used for external power supply. The temperature-sensitive paste 301 has a third terminal 3011 and a fourth terminal 3012. The third terminal 3011 and the fourth terminal 3012 are used for wiring. When the first metal member 201 is energized through the first terminal 2011 and the second terminal 2012, the first metal member 201 generates heat. On the one hand, the fluid in the flow channel 11 flowing through the support body 10 can be heated. On the other hand, the temperature-sensitive paste 301 senses the temperature change, so that the temperature can be detected, which is convenient for controlling the temperature.

[0055] It is worth noting that the first metal member 201 can be either a metal wire or a metal slurry.

[0056] In some embodiments, see Figure 7 , the temperature sensing layer 30 includes a second metal part 302, the heating layer 20 includes a heating paste 202, the heating paste 202 covers the second metal part 302, the heating paste 202 has a first joint 2021 and a second joint 2022, the first joint 2021 and the second joint 2022 are used for external power supply. The second metal part 302 has a third joint 3021 and a fourth joint 3022, the third joint 3021 and the fourth joint 3022 are used for wiring. When the heating paste 202 is energized through the first joint 2011 and the second joint 2012, the heating paste 202 generates heat, which can heat the fluid in the flow channel 11 flowing through the support body 10 on the one hand, and on the other hand, the second metal part 302 senses the temperature change, and its resistance value also changes accordingly, so that the temperature can be detected, which is convenient for controlling the temperature.

[0057] It is worth noting that the second metal member 302 can be a metal wire or formed by brushing metal slurry.

[0058] In some embodiments, see Figure 8, the functional layer 10f is implemented in such a way that the heating layer 20 includes a heating element 20f, the heating element 20f is bent multiple times to form multiple first protrusions 20f1 and multiple first slits 20f2, and the multiple first protrusions 20f1 and multiple first slits 20f2 are arranged at intervals; the temperature sensing layer 30 includes a temperature sensing element 30f, the temperature sensing element 30f is bent multiple times to form multiple second protrusions 30f1 and multiple second slits 30f2, and the multiple second protrusions 30f1 and multiple second slits 30f2 are arranged at intervals; multiple first protrusions 20f1 are embedded in multiple second slits 30f2, and multiple second protrusions 30f1 are embedded in multiple first slits 20f1. Through this arrangement, the temperature sensing layer 30 can timely sense the temperature of the heating layer 20, which is convenient for subsequent temperature control.

[0059] It is worth noting that the heating element 20f can be a metal wire or a metal slurry brush. The temperature sensing element 30f can be a metal wire or a metal slurry brush.

[0060] In some embodiments, see Fig. 9 The heater 100 further includes an inner insulating layer 70a and an outer insulating layer 70b. The inner insulating layer 70a is coated between the support body 10 and the functional layer 10f, and the outer insulating layer 70b is coated outside the functional layer 10f. Thus, on the one hand, insulation is formed between the support body 10 and the functional layer 10f, and the functional layer 10f is insulated from the outside. On the other hand, the support body 10 and the functional layer 10f can be protected to reduce the risk of damage.

[0061] It is worth noting that, in some embodiments, the inner insulating layer 70a is a glass layer, and the outer insulating layer 70b is a glass layer.

[0062] It is understandable that the inner insulating layer 70a and the outer insulating layer 70b may not be provided, and the heater 100 provided in the embodiment of the present application can also achieve the purpose of both heating the fluid and detecting the temperature of the fluid.

[0063] In some embodiments, see Fig. 9 Along the circumference of the support body, there is a gap 10f1 between one end of the functional layer 10f and the other end of the functional layer 10f. That is, the two free ends of the functional layer 10f do not contact each other, so from the perspective of processing tolerance, it is convenient to process and shape the functional layer 10f and to cover the functional layer 10f on the support body 10.

[0064] For the functional layer 10f, the functional layer 10f may also include two layers, namely, a heating layer 20 having a heating function and a temperature sensing layer 30 having a temperature detection function. Figure 5, the heating layer 20 and the temperature-sensitive layer 30 are both coated on the outside of the support body 10, the first opening 12 is exposed for the fluid to flow into or out of the support body 10, and the second opening 13 is exposed for the fluid to flow into or out of the support body 10, the heating layer 20 is used for heating, and the temperature-sensitive layer 30 is used for detecting temperature. Since the heating layer 20 and the temperature-sensitive layer 30 are both coated on the support body 10, the resistance of the fluid flowing from the outside of the support body 10 into the flow channel 11 is small, and the fluid flows smoothly; in addition, since the temperature-sensitive layer 30 is coated on the support body 10, that is, the temperature-sensitive layer 30 and the fluid in the flow channel 11 are separated by the wall of the support body 10, or by the wall of the support body 10 and the temperature-sensitive layer 30, the temperature-sensitive layer 30 can detect the temperature of the fluid in the flow channel 11 in a timely manner, and then can control the temperature of the fluid in a timely manner, so that the temperature fluctuation of the fluid is small and its stability is high.

[0065] In the embodiment of the present application, the heating layer 20 and the temperature sensing layer 30 are both coated on the support body 10 , and the relative relationship between the heating layer 20 , the temperature sensing layer 30 and the support body 10 can be various.

[0066] In some embodiments, the heating layer 20 is coated on the outside of the support body 10, and the temperature sensing layer 30 is coated on the outside of the heating layer 20, so that the heating layer 20 is close to the support body 10, and the heat of the heating layer 20 can be quickly transferred to the fluid in the flow channel 11 of the support body 10, the fluid heats up quickly, and the efficiency of the heater 100 is high.

[0067] In some embodiments, the temperature-sensing layer 30 is coated on the outside of the support body 10, and the heating layer 20 is coated on the outside of the temperature-sensing layer 30, so that the temperature-sensing layer 30 is close to the support body 10, that is, the temperature-sensing layer 30 is close to the fluid in the flow channel 11 of the support body 10, so the temperature of the fluid can be detected in time, and then the temperature of the fluid can be accurately and timely controlled, so that the temperature fluctuation of the fluid is small and its stability is high.

[0068] It is worth noting that the number of the heating layer 20 and the temperature sensing layer 30 can be multiple, so as to expand the application scenarios of the heater 100.

[0069] For the above-mentioned heating layer 20, please refer to Figure 4 The heating layer 20 includes a heating circuit 21, a first electrode 22 and a second electrode 23. The two ends of the heating circuit 21 are respectively connected to the first electrode 22 and the second electrode 23. The first electrode 22 and the second electrode 23 are both used to connect to an external circuit. The external circuit supplies power to the heating circuit 21 through the first electrode 22 and the second electrode 23, so that the heating layer 20 generates heat, and then acts on the fluid in the flow channel 11 of the support body 10 to achieve heating of the fluid.

[0070] In some embodiments, the first electrode 22 is a conductive copper sheet, and the second electrode 23 is a conductive copper sheet. The conductive copper sheet serving as the first electrode 22 and the conductive copper sheet serving as the second electrode 23 are both welded to the heating circuit 21, and the first electrode 22 is firmly connected to the heating circuit 21, and the second electrode 23 is firmly connected to the heating circuit 21.

[0071] It is worth noting that the number of the first electrode 22 and the number of the second electrode 23 can be multiple, so as to expand the application scenarios of the heater 100.

[0072] For the above-mentioned temperature sensing layer 30, please refer to Figure 4 The temperature sensing layer 30 includes a temperature sensing circuit 31, a third electrode 32 and a fourth electrode 33. The two ends of the temperature sensing circuit 31 are respectively connected to the third electrode 32 and the fourth electrode 33. The third electrode 32 and the fourth electrode 33 are both used to connect to an external circuit. The external circuit is connected to the temperature sensing circuit 31 through the third electrode 32 and the fourth electrode 33, so that the temperature can be detected.

[0073] In some embodiments, the third electrode 32 is a conductive copper sheet, and the fourth electrode 33 is a conductive copper sheet. The conductive copper sheet serving as the third electrode 32 and the conductive copper sheet serving as the fourth electrode 33 are both welded to the temperature sensing circuit 31, and the third electrode 32 is firmly connected to the temperature sensing circuit 31, and the fourth electrode 33 is firmly connected to the temperature sensing circuit 31.

[0074] It is worth noting that when the heater 100 includes the above-mentioned plug 40, the first electrode 22, the second electrode 23, the third electrode 32 and the fourth electrode 33 are all arranged close to the plug 40. Since the plug 40 is a dry area that does not contact the fluid, it is convenient to connect the heating body with the external circuit.

[0075] It is worth noting that, in some embodiments, the heating layer 20 and the temperature-sensitive layer 30 are insulated from each other; when the heating layer 20 is coated on the outside of the support body 10 and the temperature-sensitive layer 30 is coated on the outside of the heating layer 20, the heating layer 20 and the support body 10 are insulated from each other; when the temperature-sensitive layer 30 is coated on the outside of the support body 10 and the heating layer 20 is coated on the outside of the temperature-sensitive layer 30, the temperature-sensitive layer 30 and the support body 10 are insulated from each other.

[0076] It is worth noting that, in some embodiments, the heating layer 20 extends with a first connection portion 201f and a second connection portion 202f, the first connection portion 201f is connected to the first electrode 22, and the second connection portion 202f is connected to the second electrode 23. The temperature sensing layer 30 extends with a third connection portion 301f and a fourth connection portion 302f, the third connection portion 301f is connected to the third electrode 32, and the fourth connection portion 302f is connected to the fourth electrode 33. The first connection portion 201f, the third connection portion 301f, the second connection portion 202f, and the fourth connection portion 302f sequentially cover the support body 10, and the first connection portion 201f, the third connection portion 301f, the second connection portion 202f, and the fourth connection portion 302f are arranged at intervals along the circumference of the support body 10.

[0077] In some embodiments, see Figure 3 The first electrode 22, the second electrode 23, the third electrode 32, and the fourth electrode 33 are respectively connected to the first connecting part 201f, the second connecting part 202f, the third connecting part 301f, and the fourth connecting part 302f to form a cross-shaped wiring method. On the one hand, each electrode is not easily interfered with by the external line when connected, and on the other hand, the wiring is beautiful.

[0078] It is worth noting that the number of the third electrode 32 and the fourth electrode 33 can be multiple, so as to expand the application scenarios of the heater 100.

[0079] In some embodiments, see Figure 5 , along the circumference of the support body 10, there is a first gap 20a between one end of the heating layer 20 and the other end of the heating layer 20; along the circumference of the support body 10, there is a second gap 30a between one end of the temperature-sensitive layer 30 and the other end of the temperature-sensitive layer 30. That is, after the heating layer 20 covers the support body 10, there is a first gap 20a between the two free ends of the heating layer 20, that is, the two free ends of the heating layer 20 do not contact, so from the perspective of processing tolerance, it is convenient to process and shape the heating layer 20 and to cover the heating layer 20 on the support body 10. Similarly, after the temperature-sensitive layer 30 covers the support body 10 or the heating layer 20, there is a second gap 30a between the two free ends of the temperature-sensitive layer 30, that is, the two free ends of the temperature-sensitive layer 30 do not contact, so from the perspective of processing tolerance, it is convenient to process and shape the temperature-sensitive layer 30 and to cover the temperature-sensitive layer 30 on the support body 10 or the heating layer 20.

[0080] More importantly, when the heating layer 20 is coated on the outside of the support body 10 and the temperature-sensitive layer 30 is coated on the outside of the heating layer 20, since the heating layer 20 has a first gap 20a and the temperature-sensitive layer 30 has a second gap 30a, relative to the situation along the circumference of the support body 10, one end of the heating layer 20 extends and exceeds the other end of the heating layer 20 (the two free ends of the heating layer 20 overlap) and one end of the temperature-sensitive layer 30 extends and exceeds the other end of the temperature-sensitive layer 30 (the two free ends of the temperature-sensitive layer 30 overlap), the heating layer 20 of the embodiment of the present application is heated evenly and is not prone to local overheating; in addition, the temperature-sensitive layer 30 of the embodiment of the present application is only separated from the support body 10 by one layer of heating layer 20, and the temperature-sensitive layer 30 is close to the support body 10, so its temperature sensing of the fluid is accurate and timely.

[0081] It is worth noting that, for any of the above-mentioned functional layers 10f, the material of the heating layer 20 in the functional layer 10f is at least partially tungsten, and the material of the temperature sensing layer 30 is at least partially a thermosensitive material, such as a thermistor.

[0082] In some embodiments, the heater 100 further includes a flange 60, please refer to Figure 5 and Figure 6 , the flange 60 is sleeved outside the heating layer 20, or the flange 60 is sleeved outside the temperature sensing layer 30, the flange 60 is arranged close to the plug 40, and the first connection part 201f, the second connection part 202f, the third connection part 301f, and the fourth connection part 302f are all arranged between the flange 60 and the plug 40. The flange 60 is used for guiding and / or fixing the heater 100. Specifically, through the flange 60, an area for fluid to enter and exit is formed at one end where the first opening 12 and the second opening 13 are located, and a dry area for external line connection is formed at the plug 40, the first connection part 201f, the second connection part 202f, the third connection part 301f, and the fourth connection part 302f, so that the heater 100 is conveniently connected to the external line and the flange 60 can be used to facilitate the connection between the heater 100 and the external equipment.

[0083] In some embodiments, the heater 100 further includes a first insulating layer 70, a second insulating layer 80 and a third insulating layer 90, see Figure 10-12, when the heating layer 20 is coated on the outside of the support body 10, and the temperature-sensitive layer 30 is coated on the outside of the heating layer 20, the first insulating layer 70 is coated between the support body 10 and the heating layer 20, the second insulating layer 80 is coated between the heating layer 20 and the temperature-sensitive layer 30, and the third insulating layer 90 is coated on the outside of the temperature-sensitive layer 30. Thus, on the one hand, insulation is formed between the support body 10, the heating layer 20, and the temperature-sensitive layer 30, and the temperature-sensitive layer 30 is insulated from the outside, and on the other hand, the heating layer 20 and the temperature-sensitive layer 30 can be protected to reduce the risk of damage.

[0084] It is understandable that the first insulating layer 70, the second insulating layer 80, and the third insulating layer 90 may not be provided, and the heater 100 provided in the embodiment of the present application can also achieve the purpose of both heating the fluid and detecting the temperature of the fluid.

[0085] It can be understood that the first insulating layer 70, the second insulating layer 80, and the third insulating layer 90 do not cover the first electrode 22, the second electrode 23, the third electrode 32, and the fourth electrode 33. Alternatively, although the first insulating layer 70, the second insulating layer 80, and the third insulating layer 90 cover the first electrode 22, the second electrode 23, the third electrode 32, and the fourth electrode 33, the first electrode 22 is partially exposed, the second electrode 23 is partially exposed, the third electrode 32 is partially exposed, and the fourth electrode 33 is partially exposed to facilitate connection with external circuits.

[0086] It is worth noting that, in some embodiments, the first insulating layer 70 is a glass layer, the second insulating layer 80 is a glass layer, and the third insulating layer 90 is a glass layer.

[0087] In the embodiment of the present application, the heater 100 includes a support body 10 and a functional layer 10f; the support body 10 is provided with a flow channel 11 and a first opening 12 and a second opening 13 connected to the flow channel 11, the first opening 12 and the second opening 13 are used for fluid to flow into and out of the flow channel 11; the functional layer 10f includes a heating layer 20 and a temperature sensing layer 30, the functional layer 10f is coated on the outside of the support body 10, the first opening 12 is exposed, the second opening 13 is exposed, the heating layer 20 is used for heating, and the temperature sensing layer 30 is used for detecting temperature. The temperature of the fluid flowing through the support body 10 is detected through the heater 10 and the temperature-sensitive layer 30, so that on the one hand, the temperature of the fluid flowing through the support body 10 can be detected without the need for additional temperature-sensing devices, and the user experience is good; on the other hand, since the heating layer 20 and the temperature-sensitive layer 30 are both coated on the support body 10, the resistance when the fluid flows from the outside of the support body 10 into the flow channel 11 is small, and the fluid flows smoothly; on the other hand, since the temperature-sensitive layer 30 is coated on the support body 10, that is, the temperature-sensitive layer 30 and the fluid in the flow channel 11 are separated by the wall of the support body 10, or by the wall of the support body 10 and the temperature-sensitive layer 30, the temperature-sensitive layer 30 can detect the temperature of the fluid in the flow channel 11 in a timely manner, and then can accurately and timely control the temperature of the fluid, so that the temperature fluctuation of the fluid is small and its stability is high.

[0088] The present application also provides an embodiment of an electrical device, the electrical device comprising the heater 100. The heater 100 is used to heat the electrical device. The specific structure and function of the heater 100 can be found in the above embodiments, which will not be described here one by one.

[0089] It should be noted that the preferred embodiments of the present application are given in the specification and drawings of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described in the specification. These embodiments are not used as additional limitations on the content of the present application. The purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. In addition, the above-mentioned technical features continue to be combined with each other to form various embodiments not listed above, which are all regarded as the scope of the description of the present application; further, for ordinary technicians in this field, they can be improved or transformed according to the above description, and all these improvements and transformations should belong to the scope of protection of the claims attached to the present application.

Claims

1. A heater, characterized in that: include: Support and functional layer; The support body is provided with a flow channel and a first opening and a second opening communicating with the flow channel, wherein the first opening and the second opening are used for fluid to flow into and out of the flow channel; The functional layer includes a heating layer and a temperature sensing layer. The functional layer is coated outside the supporting body, the first opening is exposed, the second opening is exposed, the heating layer is used for heating, and the temperature sensing layer is used for detecting temperature.

2. The heater according to claim 1, characterized in that The heating layer is coated outside the supporting body, and the temperature sensing layer is coated outside the heating layer; or, The temperature-sensitive layer is coated outside the supporting body, and the heating layer is coated outside the temperature-sensitive layer.

3. The heater according to claim 1, characterized in that The heating layer comprises a heating element, the heating element is bent multiple times to form a plurality of first protrusions and a plurality of first slits, and the plurality of first protrusions and the plurality of first slits are arranged at intervals; The temperature sensing layer includes a temperature sensing member, the temperature sensing member is bent multiple times to form a plurality of second protrusions and a plurality of second slits, and the plurality of second protrusions and the plurality of second slits are arranged at intervals; The plurality of first protrusions are embedded in the plurality of second slits, and the plurality of second protrusions are embedded in the plurality of first slits.

4. The heater according to claim 1, characterized in that The heating layer includes a first metal piece, the temperature-sensitive layer includes a temperature-sensitive slurry, and the first metal piece is used for an external power source; or, The temperature sensing layer includes a second metal piece, and the heating layer includes a heating paste, and the heating paste is used for an external power source.

5. The heater according to claim 1, characterized in that The heating layer is at least partially made of tungsten, and the temperature sensing layer is at least partially made of a thermosensitive material.

6. The heater according to claim 1, characterized in that The heater further comprises an inner insulating layer, wherein the inner insulating layer is coated between the support body and the functional layer; and / or, The heater further includes an outer insulating layer, and the outer insulating layer is coated on the functional layer.

7. The heater according to claim 1, characterized in that Along the circumference of the support body, a gap is provided between one end of the functional layer and the other end of the functional layer.

8. The heater according to claim 1, characterized in that The heating layer comprises a heating circuit, a first electrode and a second electrode, two ends of the heating circuit are respectively connected to the first electrode and the second electrode, and the first electrode and the second electrode are both used to connect to an external circuit; The temperature sensing layer includes a temperature sensing circuit, a third electrode and a fourth electrode. Two ends of the temperature sensing circuit are respectively connected to the third electrode and the fourth electrode. The third electrode and the fourth electrode are both used to connect to external circuits.

9. The heater according to claim 1, characterized in that The support body is a ceramic tube, and the heater further comprises a plug, wherein the plug blocks one end of the ceramic tube, the other end of the ceramic tube forms the first opening, and the second opening is arranged on the side wall of the ceramic tube.

10. An electrical device, characterized in that: Comprising a heater as claimed in any one of claims 1 to 9.

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