Heater and electrical equipment

Abstract

The embodiment of the utility model relates to a heater and electrical equipment. The heater comprises a shell and a heating body. The shell is provided with an accommodating cavity and a first opening communicated with the accommodating cavity; the heating body is provided with a runner, and a first inlet and a first outlet which are communicated with the runner; one end of the heating body penetrates through the shell and then is arranged in the containing cavity. The first outlet is communicated with the accommodating cavity; the first inlet is used for external fluid to enter the flow channel, the first opening is used for the external fluid to flow out of the containing cavity, and the external fluid flowing into the flow channel from the first opening can flow into the containing cavity through the first outlet and then flow out of the first opening. When the external fluid is in the containing cavity, heat outside the heating body can be utilized, namely, the external fluid can be heated by the heating body in the flow channel, the heat outside the heating body can be utilized when the external fluid flows into the containing cavity, and the utilization rate of the heat generated by the heating body is increased.

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 realizing the present application, the applicant of the present application found that: at present, the widely used heater includes a heating body and some accessories. The heating body, such as a ceramic heating body, has only one flow channel inside. When the heater is used, the external fluid enters the flow channel inside the heating body and is heated and flows out. However, in fact, the heat generated by the heating body will be dissipated to the outside of the heating body, and the heat outside the heating body is not used, and the utilization rate of the heat generated by the heating body is not high. 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 shell and a heating body; the shell is provided with a receiving cavity and a first opening connected to the receiving cavity; the heating body is provided with a flow channel and a first inlet and a first outlet connected to the flow channel; one end of the heating body passes through the shell and is arranged in the receiving cavity; the first outlet is connected to the receiving cavity; the first inlet is used for external fluid to enter the flow channel, and the first opening is used for the external fluid to flow out of the receiving cavity.

[0006] In an optional manner, the first inlet, the first outlet and the first opening are coaxially arranged.

[0007] In an optional embodiment, the shell has a partition extending toward the receiving chamber, and the partition and the heating body divide the receiving chamber into a first flow channel and a second flow channel, the first outlet is connected to the first flow channel, and the first opening is connected to the second flow channel; the partition is provided with a second opening, and the second opening is provided away from the first outlet.

[0008] In an optional manner, the first flow channel and the second flow channel are symmetrically arranged relative to the heating body; the partition includes a first baffle, a second baffle and a guide plate, the first baffle and the second baffle are symmetrically arranged relative to the heating body, the first baffle is provided with the second opening, the second baffle is provided with the second opening, the guide plate is connected between the first baffle and the second baffle, the guide plate is inserted into the flow channel from the first outlet, the guide plate is recessed toward the second flow channel to form a guide groove, and the guide plate abuts against the inner wall of the flow channel to isolate the first outlet from the second flow channel.

[0009] In an optional manner, the heating body includes a heating element and a resisting member, the resisting member is arranged around the heating element, and the flow channel, the first inlet and the first outlet are all arranged on the heating element; the shell is provided with a third opening connected to the accommodating cavity; one end of the heating element passes through the shell from the third opening and is arranged in the accommodating cavity; the resisting member is sealed and connected to the shell at the third opening; the second opening is connected to the resisting member.

[0010] In an optional manner, the shell has a step portion extending toward the accommodating cavity, the step portion is arranged around the third opening, one end of the heating element passes through the shell from the third opening, and the blocking member is sealed on the step portion.

[0011] In an optional manner, the heating element includes a support body and a functional layer, wherein the functional layer is coated outside the support body, and the functional layer is used to heat the external fluid; the flow channel, the first inlet and the first outlet are all located on the support body; along the axial direction of the heating body, the functional layer is sequentially provided with a first part, a second part and a third part, the retaining member is provided around the second part, and the third part is located in the receiving cavity; the heater also includes a power cord and a temperature detection wire, the power cord is electrically connected to the first part, and the temperature detection wire is electrically connected to the first part.

[0012] In an optional manner, the shell is further provided with a protective cavity, and the power line and the temperature detection line are both accommodated in the protective cavity.

[0013] In an optional embodiment, the heater also includes a joint, which is sealingly connected to the shell, and the joint is provided with a flow channel and a second inlet and a second outlet connecting the flow channel; the other end of the heating element is inserted into the flow channel from the second outlet, and the other end of the heating element is sealingly connected to the joint, and the first inlet is connected to the flow channel; the second inlet is used for the external fluid to flow into the flow channel.

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

[0015] The beneficial effects of the embodiments of the present application include: providing a heater, the heater including a shell and a heating body; the shell is provided with a receiving cavity and a first opening connected to the receiving cavity; the heating body is provided with a flow channel and a first inlet and a first outlet connected to the flow channel; one end of the heating body passes through the shell and is arranged in the receiving cavity; the first outlet is connected to the receiving cavity; the first inlet is used for external fluid to enter the flow channel, and the first opening is used for the external fluid to flow out of the receiving cavity. Through the heater, the external fluid flowing into the flow channel from the first opening can flow into the receiving cavity through the first outlet, and then flow out from the first opening. Since one end of the heating body passes through the shell and is arranged in the receiving cavity, the external fluid can use the heat outside the heating body when in the receiving cavity, that is, the external fluid can be heated by the heating body in the flow channel, and the external fluid can also use the heat outside the heating body when flowing into the receiving cavity, thereby improving the utilization rate of the heat generated by the heating body. 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 a heater provided in an embodiment of the present application;

[0018] Figure 2 The embodiment of the present application provides Figure 1 A is a cross-sectional view;

[0019] Figure 3 is a schematic diagram of a heating body provided in an embodiment of the present application;

[0020] Figure 4 The embodiment of the present application provides Figure 1 Schematic diagram of B in the figure;

[0021] Figure 5 It is a partial schematic diagram of the heater provided in an embodiment of the present application.

[0022] The reference numerals are as follows:

[0023] Heater 100;

[0024] Heating body 10, housing 20, power line 30, temperature detection line 40, temperature fuse 50, cover plate 60, sealing member 70, pressing plate 80, connector 90;

[0025] Flow channel 101, first inlet 102, first outlet 103;

[0026] Heating element 11, resisting member 12;

[0027] Support body 111, functional layer 112; first part 1121, third part 1122;

[0028] Accommodating cavity 201, first opening 202; first flow channel 2011, second flow channel 2012;

[0029] Partition 21, second opening 211; third opening 203; protection cavity 204; assembly hole 205, wiring hole 206; step portion 22;

[0030] A first baffle plate 211, a second baffle plate 212, a guide plate 213; a guide groove 2131;

[0031] Flow channel 901 , second inlet 902 . DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] See also Figure 1 and Figure 2 The heater 100 provided in the embodiment of the present application includes a heating body 10 and a shell 20. The heating body 10 is used to generate heat to heat an external fluid. The shell 20 is used to accommodate the heating body 10, and the shell 20 is used to allow the external fluid flowing through the heating body 10 to further absorb the heat outside the heating body 10, thereby improving the utilization rate of the heat generated by the heating body 10.

[0035] For the above-mentioned heating body 10, the heating body 10 is provided with a flow channel 101 and a first inlet 102 and a first outlet 103 connected to the flow channel 101. The first inlet 102 is used for an external fluid to enter the flow channel 101. The flow channel 101 is used to accommodate the external fluid, the heating body 10 is used to generate heat, the external fluid absorbs the heat generated by the heating body 10 in the flow channel 101, and the first outlet 103 is used for the external fluid in the flow channel 101 to flow out.

[0036] The heating body 10 is a component in the heater 100 for generating heat, and the heating body 10 can be implemented in a variety of ways. In some embodiments, the heating body 10 includes a heating element 11 and a resisting member 12, the resisting member 12 is arranged around the heating element 11, and the flow channel 101, the first inlet 102 and the first outlet 103 are all arranged on the heating element 11; the heating element 11 is specifically used for generating heat, and one end of the heating element 11 is used to be accommodated in the shell 20. The resisting member 12 is used to be sealed and connected to the shell 20. The resisting member 12 is also used to resist the external fluid located in the accommodating cavity 201.

[0037] In some embodiments, the retaining member 12 is a flange.

[0038] In some embodiments, see Figure 2 and Figure 3 The heating element 11 includes a support body 111 and a functional layer 112. The functional layer 112 is coated on the outside of the support body 111 and is used to heat the external fluid. The flow channel 101, the first inlet 102 and the first outlet 103 are all located on the support body 111. The support body 111 is used to provide support. Along the axial direction of the heating body 10, the functional layer 112 is sequentially provided with a first portion 1121, a second portion (not shown) and a third portion 1122. The stopper 12 is arranged around the second portion 1122. The first portion 1121 is used for wiring, and the third portion 1122 is used to be accommodated in the housing 20.

[0039] The support body 111 is used to provide support for the functional layer 112 . In some embodiments, the first inlet 102 and the first outlet 103 are respectively disposed at two ends of the support body 111 , that is, the first inlet 102 and the first outlet 103 are disposed opposite to each other.

[0040] It is worth noting that the first inlet 102 is used for external fluid to flow into the flow channel 101, and the specific configuration of the first inlet 102 can be reasonably selected according to actual conditions. For example, in some embodiments, the first inlet 102 is disposed on the side wall of the support body 111, and when the functional layer 112 is coated on the support body 111, the first inlet 102 is exposed, so that the external fluid flows into the flow channel 101 from the first inlet 102.

[0041] It is worth noting that the first outlet 103 is used for the external fluid to flow out of the flow channel 101 into the housing 20. The specific configuration of the first outlet 103 can also be reasonably selected according to actual conditions. For example, in some embodiments, the first outlet 103 is disposed on the side wall of the support body 111, and when the functional layer 112 is coated on the support body 111, the first outlet 103 is exposed, so that the external fluid can flow out of the flow channel 101 from the first outlet 103 into the housing 20.

[0042] It is worth noting that one of the functions of the support 111 is to transfer the heat generated by the functional layer 112 to the external fluid in the support 111, so when selecting the material of the support 111, the thermal conductivity of the material needs to be considered. In some embodiments, the support 111 is a ceramic tube, which has high thermal conductivity, a fast heating rate of the external fluid, and high efficiency of the heating body 10; in addition, due to the high flexural strength of the ceramic tube, the service life of the heating body 10 is long. In some other embodiments, the support 111 is an alumina ceramic tube, or a zirconia ceramic tube, or the support 111 is an alumina and zirconia composite ceramic tube.

[0043] For the above-mentioned functional layer 112, the functional layer 112 is used to generate heat. In some embodiments, the functional layer 112 only provides a heating function, and the functional layer 112 can be a heating layer (not shown) formed by coating a heating slurry (not shown) on the support body 111. The functional layer 112 can also be a heating layer (not shown) formed by winding a heating element 11 (such as a heating wire, not shown) on the support body 111.

[0044] In some embodiments, the functional layer 112 not only has the function of generating heat, but also can detect the temperature at the same time, so that the functional layer 112 can be a two-layer structure including a heating layer (not shown) and a temperature-sensitive layer (not shown), and the heating layer and the temperature-sensitive layer are both coated on the support body 111, and the heating layer is located between the support body 111 and the temperature-sensitive layer, or the temperature-sensitive layer is located between the support body 111 and the heating layer. Among them, the heating layer is used to generate heat, and the temperature-sensitive layer is used to detect the temperature. Among them, the temperature-sensitive layer can be formed by coating a temperature-sensitive slurry (not shown), or it can be formed by winding a metal wire (not shown). The metal wire senses temperature changes, and its resistance value also changes accordingly, so that the temperature can be detected, which is convenient for controlling the temperature.

[0045] In addition, when the functional layer 112 has both the function of generating heat and the function of detecting temperature, the functional layer 112 can also be a layer structure, that is, a composite layer with the function of heating and detecting temperature. For example, the functional layer 112 includes a heating element 11 (such as a heating wire, not shown) and a temperature-sensitive paste (not shown), and the temperature-sensitive paste covers the heating element 11. When the heating element 11 is energized, the heating element 11 generates heat. On the one hand, it can heat the external fluid flowing through the support body 111. On the other hand, the temperature-sensitive paste senses the temperature change, so that the temperature can be detected, thereby facilitating temperature control. For another example, the functional layer 112 includes a metal wire and a heating paste, and the heating paste covers the metal wire. When the heating paste is energized, the heating paste generates heat. On the one hand, it can heat the external fluid flowing through the support body 111. On the other hand, the metal wire senses the temperature change, and its resistance value also changes accordingly, so that the temperature can be detected, thereby facilitating temperature control.

[0046] It is worth noting that the functional layer 112 is connected to an external power source to achieve the heat generation function of the functional layer 112 .

[0047] For the above-mentioned housing 20, please refer to Figure 2 and Figure 4 The housing 20 is provided with a receiving chamber 201 and a first opening 202 communicating with the receiving chamber 201. The receiving chamber 201 is used to receive at least part of the heating body 10. The receiving chamber 201 is communicated with the first outlet 103 of the heating body 10, so that the external fluid in the flow channel 101 of the heating body 10 can enter the receiving chamber 201 to absorb the external heat of the heating body 10, thereby improving the utilization rate of the heat generated by the heating body 10. The first opening 202 is used for the external fluid to flow out of the receiving chamber 201.

[0048] The shell 20 is used to provide the receiving chamber 201 to provide a channel for the flow of the external fluid, so that the external fluid can absorb the heat outside the heating body 10. The shell 20 can be implemented in many ways. For example, in some embodiments, the shell 20 is provided with a partition 21 extending toward the receiving chamber 201. The partition 21 and the heating body 10 separate the receiving chamber 201 into a first flow channel 2011 and a second flow channel 2012. The first outlet 103 is connected to the first flow channel 2011, and the first opening 202 is connected to the second flow channel 2012. The partition 21 is provided with a second opening 211, and the second opening 211 is provided away from the first outlet 103. Through this arrangement, the external fluid flowing through the flow channel 101 of the heating body 10 can flow into the first flow channel 2011 from the first outlet 103, then flow into the second flow channel 2012 through the second opening 211, and then flow out from the first opening 202; since the second opening 211 is arranged away from the first outlet 103, it is equivalent to increasing the flow time of the external fluid flowing from the first outlet 103 into the first flow channel 2011 in the first flow channel 2011, so that the external fluid can fully absorb the heat outside the heating body 10.

[0049] In some embodiments, the first inlet 102, the first outlet 103 and the first opening 202 are coaxially arranged, that is, the heating body 10 is a straight tube type and is coaxial with the first opening 202, so that on the one hand, the space occupied by the heating body 10 is small, and the space occupied by the heater 100 as a whole is small, and the heater 100 provided in the embodiment of the present application has a wide range of applications. On the other hand, the first opening 202 is arranged close to the first outlet 103, which is equivalent to the second opening 211 being arranged away from the first opening 202. Through the above-mentioned partition 21 and the second opening 211, the flow time of the external fluid flowing from the second opening 211 into the second flow channel 2012 is increased, so that on the one hand, the external fluid can fully absorb the heat outside the heating body 10, and on the other hand, it is convenient for the external fluid to mix in the flow channel 101, the first flow channel 2011 and the second flow channel 2012, which is conducive to improving the uniformity of the heating of the external fluid.

[0050] It is worth noting that, in some embodiments, when the heating body 10 includes the heating element 11 and the blocking member 12, the blocking member 12 is connected to the second opening 211, that is, the blocking member 12 is used to block the external fluid flowing into the first flow channel 2011, so that it flows into the second flow channel 2012 at the second opening 211.

[0051] It is worth noting that, in some embodiments, the first flow channel 2011 and the second flow channel 2012 are symmetrically arranged relative to the heating body 10; the partition 21 includes a first baffle plate 211, a second baffle plate 212 and a guide plate 213, the first baffle plate 211 and the second baffle plate 212 are symmetrically arranged relative to the heating body 10, the first baffle plate 211 is provided with the second opening 211, the second baffle plate 212 is also provided with the second opening 211, the guide plate 213 is connected between the first baffle plate 211 and the second baffle plate 212, the guide plate 213 is inserted into the flow channel 101 from the first outlet 103, the guide plate 213 is recessed toward the second flow channel 2012 to form a guide groove 2131, and the guide plate 213 abuts against the inner wall of the flow channel 101 to isolate the first outlet 103 from the second flow channel 2012. Through this arrangement, the external fluid can be evenly distributed in the first flow channel 2011 and the second flow channel 2012. On the one hand, the flow stability of the external fluid in the first flow channel 2011 and the second flow channel 2012 is good. On the other hand, the external fluid can fully absorb the heat outside the heating body 10, thereby improving the utilization rate of the heat generated by the heating body 10 during operation.

[0052] It is worth noting that, in some embodiments, the shell 20 is also provided with a third opening 203 connected to the accommodating cavity 201; when the heating body 10 includes a heating element 11 and a resisting member 12, one end of the heating element 11 passes through the shell 20 from the third opening 203 and is disposed in the accommodating cavity 201; the resisting member 12 is sealed and connected to the shell 20 at the third opening 203, so that the resisting member 12 is connected to the second opening 211, so that the resisting member 12 can resist the external fluid in the first flow channel 2011, causing it to turn at the second opening 211 and enter the second flow channel 2012.

[0053] It is worth noting that, in some embodiments, the third opening 203, the first inlet 102, the first outlet 103 and the first opening 202 are coaxially arranged, that is, the heating body 10 is a straight tube type and is coaxial with the first opening 202 and the third opening 203, so that the heating body 10 occupies a small space and the heater 100 as a whole occupies a small space, and the heater 100 provided in the embodiment of the present application has a wide range of applications.

[0054] It is worth noting that, in some embodiments, the housing 20 has a step portion 22 extending toward the receiving cavity 201, the step portion 22 is arranged around the third opening 203, one end of the heating element 11 passes through the housing 20 from the third opening 203, and the stopper 12 is sealed to the step portion 22. The step portion 22 facilitates the stopper 12 to be sealed and connected to the housing 20 at the third opening 203.

[0055] It is worth noting that, in some embodiments, see Figure 2 , Figure 3 and Figure 5 The heater 100 also includes a power line 30 and a temperature detection line 40. The power line 30 is used to be electrically connected to the heating body 10 to supply power, and the temperature detection line 40 is used to be electrically connected to the heating body 10 to detect the working temperature of the heating body 10 to ensure the normal operation of the heating body 10.

[0056] In some embodiments, the heating body 10 includes the heating element 11 and the stopper 12, the heating element 11 includes the support body 111 and the functional layer 112, and along the axial direction of the heating body 10, the functional layer 112 is sequentially provided with a first portion 1121, a second portion 1122 and a third portion 1122, the power line 30 is specifically electrically connected to the first portion 1121, the temperature detection line 40 is electrically connected to the first portion 1121, and the third portion 1122 is accommodated in the accommodation cavity 201. Since the second portion 1122 is surrounded by the stopper 12, the stopper 12 is sealed and connected to the housing 20, so that the stopper 12 actually isolates the first portion 1121 from the external fluid in the accommodation cavity 201, and forms a dry area in the first portion 1121, so that when the first portion 1121 is electrically connected to the power line 30 or the temperature detection line 40, the safety of electricity use can be guaranteed.

[0057] It is worth noting that when the functional layer 112 includes the above-mentioned heating layer (not shown) and the temperature sensing layer (not shown), the power line 30 is electrically connected to the heating layer, and the temperature detection line 40 is electrically connected to the temperature sensing layer.

[0058] It is worth noting that, in some embodiments, the housing 20 is further provided with a protective cavity 204, and the power line 30 and the temperature detection line 40 are both accommodated in the protective cavity 204, so as to ensure the safety of electricity use.

[0059] It is worth noting that, in some embodiments, the heater 100 further includes a temperature fuse 50, which is accommodated in the protection cavity 204 and is electrically connected to the temperature detection line 40. Through the temperature fuse 50, when the temperature of the heating body 10 detected by the temperature detection line 40 exceeds a preset value, the temperature fuse 50 is melted, thereby disconnecting the electrical connection between the heating body 10 and the external power supply, thereby protecting the safety of the heating body 10.

[0060] It is worth noting that, in some embodiments, the housing 20 is further provided with an assembly hole 205 and a wiring hole 206 communicating with the protective cavity 204, and the assembly hole 205 can be used to replace the temperature fuse 50. Specifically, in some embodiments, the heater 100 further includes a cover plate 60, the cover plate 60 is sealed on the assembly hole 205, and the cover plate 60 is detachably connected to the housing 20. The wiring hole 206 is used to facilitate the connection of the power cord 30 with an external power source.

[0061] It is worth noting that, in some embodiments, the power cord 30 is sealed and connected to the shell 20 at the wiring hole 206. Specifically, the heater 100 includes a seal 70, which is disposed in the wiring hole 206, and the power cord 30 passes through the seal 70.

[0062] It is worth noting that, in some embodiments, the heater 100 further includes a pressure plate 80, and the pressure plate 80 is covered on the temperature fuse 50, and the pressure plate 80 is used to place the temperature fuse 50 in the protective cavity 204 to prevent the temperature fuse 50 from being displaced or damaged due to vibration or other external factors.

[0063] It is worth noting that, in some embodiments, the heater 100 also includes a connector 90, which is sealed and connected to the shell 20, and the connector 90 is provided with a flow channel 901 and a second inlet 902 and a second outlet (not marked) connected to the flow channel 901; when the heating body 10 includes the heating element 11 and the stopper 12, one end of the heating element 11 passes through the shell 20 from the third opening 203 and is arranged in the accommodating cavity 201, and the other end of the heating element 11 is inserted into the flow channel 901 from the second outlet, and the other end of the heating element 11 is sealed and connected to the connector 90, and the first inlet 102 is connected to the flow channel 901; the second inlet 902 is used for the external fluid to flow into the flow channel 901. Through this arrangement, on the one hand, the external fluid flowing into the flow channel 901 from the second inlet 902 can flow into the flow channel 101 of the heating body 10 through the first inlet 102 of the heating body 10, and flow into the receiving cavity 201 from the first outlet 103 of the heating body 10, so that the external fluid absorbs the heat outside the heating body 10; on the other hand, since the joint 90 is sealed and connected to the shell 20, the joint 90, the shell 20, the stopper 12 of the heating body 10, and the first part 112 of the functional layer 112 of the heating body 10 can be connected to the housing 20. 1, a space isolated from the outside and the receiving chamber 201 can be formed in the first part 1121, thereby reducing the contact between external water vapor and the connection between the first part 1121 and the power line 30, reducing the contact between external water vapor and the connection between the first part 1121 and the temperature detection line 40, reducing the influence of the external fluid in the receiving chamber 201 on the connection between the first part 1121 and the power line 30, reducing the influence of the external fluid in the receiving chamber 201 on the connection between the first part 1121 and the temperature detection line 40, and protecting the electrical safety of the heating body 10.

[0064] It is worth noting that, in some embodiments, the second inlet 902, the third opening 203, the first inlet 102, the first outlet 103 and the first opening 202 are coaxially arranged, that is, the heating body 10 is a straight tube type and is coaxial with the second inlet 902 of the plug 90, and the first opening 202 and the third opening 203 of the shell 20, so that the heating body 10 occupies a small space, and the heater 100 including the plug 90 occupies a small space as a whole, and the heater 100 provided in the embodiment of the present application has a wide range of applications.

[0065] In the embodiment of the present application, the heater 100 includes a shell 20 and a heating body 10; the shell 20 is provided with a receiving cavity 201 and a first opening 202 connected to the receiving cavity 201; the heating body 10 is provided with a flow channel 101 and a first inlet 102 and a first outlet 103 connected to the flow channel 101; one end of the heating body 10 passes through the shell 20 and is arranged in the receiving cavity 201; the first outlet 103 is connected to the receiving cavity 201; the first inlet 102 is used for external fluid to enter the flow channel 101, and the first opening 202 is used for the external fluid to flow out of the receiving cavity 201. Through the heater 100, the external fluid flowing into the flow channel 101 from the first opening 202 can flow into the receiving chamber 201 through the first outlet 103, and then flow out from the first opening 202. Since one end of the heating body 10 passes through the shell 20 and is arranged in the receiving chamber 201, the external fluid can utilize the heat outside the heating body 10 when in the receiving chamber 201, that is, the external fluid can be heated by the heating body 10 in the flow channel 101, and the external fluid can also utilize the heat outside the heating body 10 when flowing into the receiving chamber 201, thereby improving the utilization rate of the heat generated by the heating body 10.

[0066] 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 in detail here.

[0067] 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: Shell and heating element; The shell is provided with a receiving cavity and a first opening communicating with the receiving cavity; The heating body is provided with a flow channel and a first inlet and a first outlet communicating with the flow channel; One end of the heating body passes through the shell and is disposed in the receiving cavity; The first outlet is in communication with the receiving cavity; The first inlet is used for external fluid to enter the flow channel, and the first opening is used for the external fluid to flow out of the receiving chamber.

2. The heater according to claim 1, characterized in that The first inlet, the first outlet and the first opening are coaxially arranged.

3. The heater according to claim 1, characterized in that The housing has a partition extending toward the receiving chamber, the partition and the heating body divide the receiving chamber into a first flow channel and a second flow channel, the first outlet is communicated with the first flow channel, and the first opening is communicated with the second flow channel; The partition is provided with a second opening, and the second opening is arranged away from the first outlet.

4. The heater according to claim 3, characterized in that The first flow channel and the second flow channel are symmetrically arranged relative to the heating body; The partition includes a first baffle, a second baffle and a guide plate. The first baffle and the second baffle are symmetrically arranged relative to the heating body. The first baffle is provided with the second opening, and the second baffle is provided with the second opening. The guide plate is connected between the first baffle and the second baffle. The guide plate is inserted into the flow channel from the first outlet. The guide plate is recessed toward the second flow channel to form a guide groove. The guide plate abuts against the inner wall of the flow channel to isolate the first outlet from the second flow channel.

5. The heater according to claim 3, characterized in that The heating body comprises a heating element and a stopper, the stopper is arranged around the heating element, and the flow channel, the first inlet and the first outlet are all arranged on the heating element; The shell is provided with a third opening communicating with the receiving cavity; One end of the heating element passes through the shell from the third opening and is disposed in the receiving cavity; The blocking member is sealed and connected to the housing at the third opening; The second opening is in communication with the blocking member.

6. The heater according to claim 5, characterized in that The shell has a step portion extending toward the receiving cavity, the step portion is arranged around the third opening, one end of the heating element passes through the shell from the third opening, and the blocking member is sealed on the step portion.

7. The heater according to claim 6, characterized in that The heating element comprises a support body and a functional layer, wherein the functional layer is coated outside the support body, and the functional layer is used to heat the external fluid; The flow channel, the first inlet and the first outlet are all located on the support body; Along the axial direction of the heating body, the functional layer is sequentially provided with a first portion, a second portion and a third portion, the blocking member is arranged around the second portion, and the third portion is located in the receiving cavity; The heater further includes a power line and a temperature detection line, the power line is electrically connected to the first portion, and the temperature detection line is electrically connected to the first portion.

8. The heater according to claim 7, characterized in that The shell is also provided with a protection cavity, and the power line and the temperature detection line are both accommodated in the protection cavity.

9. The heater according to claim 7, characterized in that The heater further comprises a joint, the joint being sealingly connected to the housing, the joint being provided with a flow channel and a second inlet and a second outlet communicating with the flow channel; The other end of the heating element is inserted into the flow channel from the second outlet, the other end of the heating element is sealed and connected to the joint, and the first inlet is connected to the flow channel; The second inlet is used for the external fluid to flow into the flow channel.

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

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