Heating device and heater

Abstract

The utility model provides a heating device and a heater, and the heating device comprises a box body which is internally provided with a containing part; at least part of the heating assembly is arranged in the containing part, the heating assembly comprises a shell and a heating part arranged in the shell, the shell and the box body are matched to form a flow channel, and the heating part heats liquid in the flow channel through the shell. Through the mode, the assembly steps of the heating part are simplified, the heating part is prevented from being in contact with liquid in the flow channel through the shell, electric leakage of the heating device caused by breakage of the heating part is avoided, and the safety of the heating device is effectively improved.

Description

Technical Field

[0001] This application relates to the field of smart home technology, and in particular to a heating device and heater. Background Technology

[0002] A heater is an electrical appliance that uses electrical energy to achieve a heating effect. Small in size and with high heating power, heaters are widely used in fields such as smart bathrooms, new energy vehicles, and energy storage. The heater transfers heat generated by the ceramic tube to the liquid, which then distributes the heat to various parts of the main equipment, providing warm water or heating other components.

[0003] However, in existing heaters, the ceramic tube is completely immersed in the liquid within the outer casing's flow channel. Because the ceramic tube is in direct contact with the liquid, heat is directly transferred from the ceramic tube to the liquid inside the flow channel. If a steam-water mixture is present in the flow channel cavity, the contact area between the steam-water mixture and the ceramic tube causes a rapid temperature rise, potentially leading to the heating element breaking. Furthermore, since the heating element is in direct contact with the liquid without insulation, a broken heating element will cause electrical leakage. Utility Model Content

[0004] This application provides a heating device to solve the problem of electrical leakage caused by the breakage of the heating element during heating in existing heating devices.

[0005] To solve the above-mentioned technical problems, this application provides a heating device, including: a housing with a receiving portion formed therein; a heating component, at least a portion of which is disposed within the receiving portion, the heating component including a housing and a heating part disposed inside the housing, the housing and the housing cooperating to form a flow channel, and the heating part heating the liquid in the flow channel through the housing.

[0006] The outer shell includes a flat plate and a protrusion. Multiple protrusions are provided. One end of the protrusion is connected to the flat plate. The protrusion forms an accommodating space. The opening of the accommodating space is located at the end where the protrusion is connected to the flat plate. The protrusion is located inside the accommodating space. The heating element is disposed in the accommodating space.

[0007] The protrusion is offset along a first direction, which is the length or width direction of the box.

[0008] The heating element is disposed in the accommodating space and spaced apart from the outer shell. The heating assembly also includes a thermally conductive insulating layer, which is disposed between the heating element and the inner wall of the accommodating space formed by the outer shell.

[0009] The outer shell also includes a partition, which is located inside the accommodating part. The partition is arranged along a first direction and divides the accommodating part into a first channel and a second channel. A through hole is provided on the partition, which connects the first channel and the second channel.

[0010] The outer side of the box is equipped with an inlet pipe and an outlet pipe, which are connected to the first channel and the second channel, respectively.

[0011] The heating section has several supports on its side wall, which are supported on the inner side wall of the accommodating space so that the axis of the heating section coincides with the axis of the accommodating space.

[0012] The heating part and the protruding part are designed as sheets.

[0013] The heating element is inserted into the accommodating space along a second direction, which is either the length or width direction of the heating element; the protrusion is connected to the partition and the side wall of the box in sequence along a first direction, so that the first channel and the second channel surround the outer side wall of the protrusion.

[0014] To address the aforementioned problems, this application also provides a heater, comprising: a heating device disposed within the heater, wherein the heating device is any of the heating devices described above.

[0015] The beneficial effects of this application are as follows: Unlike the prior art, this application forms a receiving part in the box, and the heating component is inserted into the box. The heating component includes a shell and a heating part. The shell and the box cooperate to form a flow channel. The shell separates the heating part from the liquid in the flow channel. The heating part is inserted into the shell, which simplifies the assembly steps of the heating part. Moreover, the shell avoids the heating part from contacting the liquid in the flow channel, and avoids the heating part from breaking and causing the heating device to leak electricity, thus effectively improving the safety of the heating device. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the first cross-sectional view of the heating device of this application;

[0017] Figure 2 This is a schematic diagram of the structure of the exploded view of the heating device of this application;

[0018] Figure 3 This is a structural schematic diagram of the second cross-sectional view of the heating device of this application;

[0019] Figure 4 This is a schematic diagram of the connection between the partition plate and the flat plate of the heating device in this application;

[0020] Figure 5 This is a top view of the heating device of this application. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0024] Please see Figure 1 , Figure 1 This is a structural schematic diagram of the first cross-sectional view of the heating device provided in this application.

[0025] This application provides a heating device. For example... Figure 1 As shown, the heating device of this embodiment includes a housing 10 and a heating assembly 20. A receiving portion 101 is formed in the housing 10. At least a portion of the heating assembly 20 is disposed within the receiving portion 101. The heating assembly 20 includes a housing 201 and a heating part 202 disposed inside the housing 201. The housing 201 and the housing 10 cooperate to form a flow channel 30. The heating part 202 heats the liquid within the flow channel 30 through the housing 201. The housing 201 is inserted into the receiving portion 101 of the housing 10, thereby forming the flow channel 30 with the housing 10. When heating the liquid within the flow channel 30, the heating part 202 provides heat to the housing 201, and the heat from the housing 201 is transferred to the liquid within the flow channel 30, thus heating the liquid. The heating part 202 is connected to an external power source, which provides the required voltage to the heating part 202 when heating is required.

[0026] In an optional embodiment, a receiving portion 101 is formed in the housing 10, into which the heating assembly 20 can be inserted. To prevent the liquid in the flow channel 30 from directly contacting the heating part 202, the heating assembly 20 includes a housing 201 and a heating part 202. The heating part 202 is inserted into the housing 201, and then the housing 201 is inserted into the housing 10, thereby forming a flow channel 30 between the housing 201 and the housing 10, thus separating the heating part 202 from the liquid in the flow channel 30 through the housing 201. This prevents electrical conductivity between the heating part 202 and the liquid in the event of breakage of the heating part 202, thus avoiding leakage and improving the safety of the heating assembly 20. Specifically, when heating the liquid inside the flow channel 30, the liquid can be introduced into the flow channel 30 formed by the outer shell 201 and the box 10, and the heating part 202 can be heated by an external power source. The heat from the heating part 202 is transferred to the side wall of the outer shell 201 inserted inside the box 10, thereby transferring the heat to the liquid inside the flow channel 30 through the outer shell 201, thus completing the heating of the liquid.

[0027] In this embodiment, combined with Figure 5 As shown, when installing the heating device, the heating element 202 is inserted into the outer casing 201, and then the outer casing 201 is inserted into the housing 10, thus completing the assembly of the heating device. The liquid in the flow channel 30 formed by the outer casing 201 and the housing 10 is heated by the heating element 202, thereby transferring heat through the outer casing 201 to the liquid in the flow channel 30. That is, the outer casing 201 provides heat to the liquid in the flow channel 30, thus heating the liquid. The outer casing 201 separates the heating element 202 from the liquid in the flow channel 30, thereby preventing leakage of the heating device if the heating element 202 breaks, effectively improving the safety of the heating device. When installing the heating element 202, it is directly inserted into the outer casing 201, and the outer casing 201 is inserted into the housing 10, thus simplifying the steps of assembling the heating component 20 into the receiving part 101. When it is necessary to replace the heating element 202, the heating element 202 can be directly removed from the outer casing 201 without the need to use other tools to disassemble the heating element 202.

[0028] In the above embodiment, by forming a receiving portion 101 in the housing 10, the heating component 20 is inserted into the housing 10. The heating component 20 includes a housing 201 and a heating part 202. The housing 201 cooperates with the housing 10 to form a flow channel 30. The housing 201 separates the heating part 202 from the liquid in the flow channel 30. The heating part 202 is inserted into the housing 201, which simplifies the assembly steps of the heating part 202. The housing 201 prevents the heating part 202 from contacting the liquid in the flow channel 30, and prevents the heating part 202 from breaking and causing leakage of the heating device, thus effectively improving the safety of the heating device.

[0029] In an optional embodiment, such as Figure 2 As shown, the outer casing 201 includes a flat plate portion 203 and a protrusion portion 204. Multiple protrusion portions 204 are provided. One end of the protrusion portion 204 is connected to the flat plate portion 203. The protrusion portion 204 forms an accommodating space 205. The opening of the accommodating space 205 is located at the end where the protrusion portion 204 is connected to the flat plate portion 203. The protrusion portion 204 is located inside the accommodating portion 101. The heating portion 202 is disposed in the accommodating space 205. The outer casing 201 is provided with a flat plate portion 203 and a protrusion portion 204. When the outer casing 201 is inserted into the housing 10, the protrusion portion 204 and the flat plate portion 203 cooperate with the housing 10 to form a flow channel 30. The flat plate portion 203 is perpendicular to the protrusion portion 204 of the outer casing 201, and the protrusion portion 204 is perpendicular to the bottom side wall of the housing 10, so that the side wall of the protrusion portion 204 is located in the flow channel 30. The liquid in the flow channel 30 comes into contact with the side wall of the protrusion portion 204, thereby providing heat to the liquid in the flow channel 30 through the protrusion portion 204. Specifically, the protrusion 204 is connected to the flat plate 203, and an accommodating space 205 is formed in the protrusion 204. The heating part 202 is inserted into the protrusion 204. When the heating part 202 heats, it can transfer heat to the side wall of the protrusion 204 and transfer heat to the liquid in the flow channel 30 through the side wall of the protrusion 204.

[0030] In this embodiment, the opening of the accommodating space 205 of the protrusion 204 is located at the end where the protrusion 204 connects to the flat plate 203. The protrusion 204 is located within the accommodating portion 101 of the housing 10, and the heating element 202 is located within the accommodating space 205 of the protrusion 204. When installing the heating device, the heating element 202 can be inserted into the accommodating space 205 of the protrusion 204 through the opening of the accommodating space 205. When adding liquid, the liquid can flow into the flow channel 30 formed by the flat plate 203, the protrusion 204, and the housing 10. The heating element 202 can be connected to an external power source to activate it and begin heating. The heat from the heating element 202 is transferred to the side wall of the protrusion. Since the protrusion 204 is inserted inside the housing 10, its outer side wall contacts the liquid, thereby providing heat to the liquid in the flow channel 30 through the side wall of the protrusion 204.

[0031] In an optional embodiment, the heating element 202 and the protrusion 204 are configured as sheets. That is, the heating element 202 and the protrusion 204 are configured as sheet structures, so that when the protrusion 204 of the outer casing 201 is inserted into the housing 10 and the liquid in the flow channel 30 is heated by the protrusion 204, the volume occupied by the protrusion 204 within the housing 10 can be effectively reduced, thereby increasing the contact area between the liquid and the heating assembly 20. Specifically, the protrusion 204 is configured as a sheet structure, and the corresponding accommodating space 205 within the protrusion 204 is configured as a sheet structure adapted to the heating element 202, and the size of the accommodating space 205 is larger than the size of the heating element 202. This facilitates the insertion of the heating element 202 into the accommodating space 205 of the protrusion 204. That is, the protrusion 204 is set as a sheet structure. When the protrusion 204 is connected to the flat plate 203, the distance between adjacent protrusions 204 can be reduced. Thus, when the heating component 20 is installed in the box 10 of the same volume, more protrusions 204 can be provided. That is, the protrusion 204 is connected to the flat plate 203 and the protrusion 204 is arranged parallel to the flat plate 203. When heating the liquid in the flow channel 30, the efficiency of heating the liquid can be effectively improved.

[0032] In an optional embodiment, the protrusion 204 is offset along a first direction, which is either the length or width direction of the housing 10. This offset arrangement of the protrusion 204 allows the flow channel 30 to be divided after the protrusion 204 of the outer casing 201 is inserted into the receiving portion 101 of the housing 10. This allows the flow channel 30 to surround the protrusion 204, thereby increasing the path for liquid to flow within the flow channel 30. Specifically, the length or width direction of the housing 10 is the first direction. The protrusion 204 can be disposed on the flat plate 203 along the first direction. When the outer shell 201 is inserted into the receiving portion 101 of the housing 10, the protrusion 204 is staggered along the first direction in the receiving portion 101 of the housing 10, thereby dividing the flow channel 30 formed by the outer shell 201 and the housing 10. Specifically, the flow channel 30 can be divided into an S-shaped flow channel 30, so that the liquid in the flow channel 30 surrounds the side wall of the protrusion 204. When heating the liquid in the flow channel 30, the heating efficiency can be effectively improved. In this embodiment, the length or width direction of the heating part 202 is the second direction, and the heating part 202 is inserted into the receiving space 205 along the second direction. When installing the heating device, the heating part 202 can be inserted into the receiving space 205 through the opening of the receiving space 205 along the second direction, thereby completing the installation of the heating part 202.

[0033] In an optional embodiment, such as Figure 3As shown, the portion of the heating element 202 disposed within the accommodating space 205 is spaced apart from the outer casing 201. The heating assembly 20 also includes a thermally conductive insulating layer 40, which is disposed between the heating element 202 and the inner wall of the accommodating space 205 formed by the outer casing 201. Specifically, a thermally conductive insulating layer 40 is formed between the heating element 202 and the inner wall of the outer casing 201. When the heating element 202 is inserted into the accommodating space 205 of the outer casing 201 along the second direction, the portion of the heating element 202 inserted within the space is spaced apart from the inner wall of the protrusion 204. The thermally conductive insulating layer 40 is disposed in the gap between the heating element 202 and the inner wall of the protrusion 204, allowing heat to be quickly transferred to the protrusion 204 of the outer casing 201 through the thermally conductive insulating layer 40, thereby increasing the heat transfer efficiency. Furthermore, if the heating element 202 is damaged, the thermally conductive insulating layer 40 can effectively prevent leakage of electricity from the heating element 202, thereby further increasing the safety of the heating device during use. The thermally conductive insulating layer 40 can be a semi-cured material. When the thermally conductive insulating layer 40 is placed between the inner wall of the accommodating space 205 of the protrusion 204 and the protrusion 204, the liquid semi-cured material can be poured into the accommodating space 205 of the protrusion 204, and then the heating part 202 can be inserted into the accommodating space 205 along the second direction. When the heating part 202 is inserted into the accommodating space 205, it compresses the semi-cured thermally conductive insulating layer 40, causing the semi-cured insulating layer to fill the gap between the inner wall of the protrusion 204 and the heating part 202. Since the thermally conductive insulating layer 40 is in a flowing state, it can effectively fill the gap between the inner wall of the protrusion 204 and the heating part 202, thereby effectively reducing the occurrence of leakage current in the heating device. After the thermally conductive insulating layer 40 fills the gap between the heating part 202 and the inner wall of the protrusion 204, the semi-cured thermally conductive insulating layer 40 can be cured by the heating part 202, so that the thermally conductive insulating layer 40 protects the heating part 202.

[0034] In this embodiment, a plurality of supports (not shown) are provided on the side wall of the heating part 202. The supports are supported on the inner side wall of the accommodating space 205 so that the axis of the heating part 202 coincides with the axis of the accommodating space 205. That is, when the heating part 202 is inserted into the accommodating space 205 of the protrusion 204 along the second direction, the supports are supported on the inner side wall of the accommodating space 205 so that the axis of the heating part 202 coincides with the axis of the accommodating space 205. The bracket is supported on the inner wall of the protrusion 204, ensuring that the dimensions between the side wall of the heating part 202 and the inner wall of the protrusion 204 are the same. This results in the same thickness of the thermally conductive insulating layer 40 between the inner wall of the protrusion 204 and the heating part 202, preventing the thermally conductive insulating layer 40 from being too large or too small. This effectively ensures the heat transfer effect from the heating part 202 to the surrounding inner walls of the protrusion 204, preventing situations where the thermal conductivity or insulation effect is poor on one side of the protrusion 204.

[0035] In other embodiments, such as Figure 2 As shown, a limiting member 70 can be provided at the end of the heating part 202 away from the protrusion 204. That is, when the heating part 202 is inserted into the receiving space 205 of the protrusion 204, the limiting member 70 can make the axis of the heating part 202 coincide with the axis of the receiving space 205, so that the gap size between the side wall of the heating part 202 and the inner side wall of the protrusion 204 is the same. This allows the thermally conductive insulating layer 40 to be evenly filled in the gap between the protrusion 204 and the heating part 202. The limiting member 70 can also limit the length of the heating part 202 inserted into the receiving space 205, so that the end of the heating part 202 away from the limiting member 70 forms a gap with the end of the protrusion 204, allowing the thermally conductive insulating layer 40 to wrap around the heating part 202, thereby improving the safety of the heating device.

[0036] In an optional embodiment, such as Figure 4As shown, the outer casing 201 also includes a partition 50 located within the receiving portion 101. The partition 50 is arranged along a first direction and divides the receiving portion 101 into a first channel 301 and a second channel 302. A through hole 501 is provided on the partition 50, which connects the first channel 301 and the second channel 302. The partition 50 is provided at one end of the outer casing 201 near the housing 10, so that when the outer casing 201 is inserted into the receiving portion 101 of the housing 10, the flow channel 30 can be divided into the first channel 301 and the second channel 302 by the partition 50. Specifically, a partition 50 is disposed on the flat plate portion 203 of the outer shell 201. Two rows of protrusions 204 are arranged side-by-side along a first direction on the outer shell 201. The partition 50 is disposed on the flat plate portion 203 between the two rows of protrusions 204. When the outer shell 201 is inserted into the receiving portion 101 of the housing 10, the end of the partition 50 away from the flat plate portion 203 abuts against the bottom wall of the housing 10, thereby dividing the flow channel 30 into a first channel 301 and a second channel 302. A through hole 501 is formed in the partition 50, connecting the first channel 301 and the second channel 302. Specifically, the through hole 501 is disposed at the end of the partition 50 along the first direction, i.e., the through hole 501 is located on one side of the inner wall of the housing 10. When liquid flows in the flow channel 30, the first channel 301 can be transferred to the second channel 302 through the through hole 501. This causes the flow channel 30 to surround the protrusion 204, and the flow path of the liquid in the flow channel 30 is increased through the second channel 302, thereby improving the heating efficiency of the liquid.

[0037] In an optional embodiment, such as Figure 4 As shown, an inlet pipe 601 and an outlet pipe 602 are provided on the outer side of the housing 10, and the inlet pipe 601 and the outlet pipe 602 are respectively connected to the first channel 301 and the second channel 302. The inlet pipe 601 and the outlet pipe 602 are located on the outer wall of the housing 10 at the end away from the partition 50 where the through hole 501 is provided. Specifically, the inlet pipe 601 is connected to the first channel 301, and the outlet pipe 602 is connected to the second channel 302. When it is necessary to heat the liquid, the liquid can be transferred to the first channel 301 through the inlet pipe 601. The liquid in the first channel 301 is transferred to the second channel 302 through the through hole 501, and then the liquid in the second channel 302 is discharged through the outlet pipe 602.

[0038] In a specific application scenario, when heating a liquid, the heating element 202 is connected to an external power source. The external power source supplies power to the heating element 202, causing it to heat up. The heat from the heating element 202 is transferred to the sidewall of the protrusion 204 through the thermally conductive insulating layer 40. The liquid is then transferred to the first channel 301 through the inlet pipe 601. The liquid entering the first channel 301 contacts the sidewall of the protrusion 204, thus providing heat to the liquid. The liquid flows around the sidewall of the protrusion 204 within the first channel 301, heating the liquid through the protrusion 204. The liquid flows through the first channel 301 to the through hole 501, passes through the through hole 501, and is transferred to the second channel 302. The protrusion 204 in the second channel 302 heats the liquid, and the liquid is then discharged through the outlet pipe via the second channel 302. As the liquid passes through the first channel 301 and the second channel 302, and is heated by the protrusion 204 provided in the first channel 301 and the second channel 302, it is discharged through the outlet pipe 602 after heating is completed.

[0039] In an optional embodiment, the protrusion 204 is sequentially connected to the partition 50 and the side wall of the housing 10 along a first direction, so that the first channel 301 and the second channel 302 surround the outer side wall of the protrusion 204. The protrusion 204 is sequentially connected to the partition 50 and the side wall of the housing 10 along the first direction, so that when the liquid to be heated is introduced into the flow channel 30, the liquid can bypass the side wall of the protrusion 204, thereby improving the liquid flow path. Specifically, one of adjacent protrusions 204 is connected to the side wall of the partition 50, and the other is connected to the side wall of the housing 10, so that the first channel 301 and the second channel 302 form an S-shape, thereby increasing the contact area between the liquid and the protrusion 204. When the liquid enters the first channel 301 through the inlet, the liquid surrounds the side wall of the protrusion 204, and the heat from the heating part 202 is transferred to the liquid in the flow channel 30 through the side wall of the protrusion 204, thereby completing the heating of the liquid.

[0040] In an optional embodiment, when the liquid is transferred to the first channel 301 through the inlet pipe 601, the liquid directly contacts one side end face of the protrusion 204. Since one end of the protrusion 204 contacts the side wall of the housing 10 or the side wall of the partition 50, the liquid can be transferred to the other side end face of the protrusion 204 and contact one side end face of the next stage protrusion 204. This allows the liquid to fully contact the side wall of the protrusion 204 when it flows in the flow channel 30, thereby improving the heat transfer efficiency and thus improving the heating efficiency of the liquid.

[0041] In this application, by forming a receiving portion 101 in the housing 10 and inserting the heating component 20 into the housing 10, the heating component 20 includes a housing 201 and a heating portion 202. The housing 201 and the housing 10 are configured to form a flow channel 30. This arrangement allows the heating portion 202 to be separated from the liquid in the flow channel 30, simplifying the installation of the heating portion 202. Furthermore, the housing 201 prevents the heating portion 202 from contacting the liquid in the flow channel 30 and avoids the heating portion 202 breaking, which could lead to leakage and improve the safety of the heating device. The housing 201 is configured as a flat plate with a protrusion 204, and a receiving space 205 is formed in the protrusion 204. The heating portion 202 is inserted into the receiving space 205. This arrangement allows the protrusion 204 to be inserted into the housing 10, thereby increasing the contact area between the liquid and the protrusion 204. By arranging the heating element 202 and the protrusion 204 in a sheet-like manner, the layout capability of the heating device can be improved, and the contact area of ​​the liquid with the protrusion 204 can be increased, thereby improving the heating efficiency of the liquid. By staggering the protrusion 204 along the first direction and connecting it sequentially to the side wall of the partition 50 and the side wall of the housing 10, the flow path of the liquid in the flow channel 30 is increased, thereby improving the efficiency of heating the liquid. By providing a thermally conductive insulating layer 40 in the accommodating space 205 and placing the thermally conductive insulating layer 40 on the side wall of the heating element 202 and the inner side wall of the protrusion 204, leakage of the heating element 202 can be avoided and the liquid transfer efficiency can be improved. By providing several supports on the side wall of the heating element 202, the axis of the heating element 202 can be made to coincide with the axis of the accommodating space 205, thereby making the size of the thermally conductive insulating layer 40 the same. By providing a partition 50 on the outer casing 201, the flow channel 30 can be divided into a first channel 301 and a second channel 302. By opening a through hole 501 on the partition 50, the flow path of the liquid in the flow channel 30 can be effectively increased.

[0042] This application also provides a heater, which includes a heating device, wherein the heating device is the heating device of any of the above embodiments.

[0043] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A heating device, characterized in that, The heating device comprises: a box body, a containing portion is formed in the box body; a heating assembly, at least a part of the heating assembly is arranged in the containing portion, the heating assembly comprises a shell and a heating portion arranged in the shell, the shell cooperates with the box body to form a flow channel, and the heating portion heats liquid in the flow channel through the shell; the shell comprises a flat plate portion and a plurality of protruding portions, one end of the protruding portion is connected with the flat plate portion, the protruding portion forms a containing space, an opening of the containing space is located at the end where the protruding portion is connected with the flat plate portion, the protruding portion is located in the containing portion, and the heating portion is arranged in the containing space; the part of the heating portion arranged in the containing space is arranged apart from the shell, the heating assembly further comprises a heat-conducting insulation layer arranged between the heating portion and the inner wall of the shell forming the containing space.

2. The heating device of claim 1, wherein The protruding portions are arranged in dislocation along a first direction, and the first direction is a length direction or a width direction of the box body.

3. The heating device of claim 2, wherein, The shell further comprises a partition plate, the partition plate is located in the containing portion, the partition plate is arranged along the first direction, and the partition plate divides the flow channel into a first channel and a second channel. A through hole is formed in the partition plate, and the through hole communicates the first channel and the second channel.

4. The heating device of claim 3, wherein Water inlet pipes and water outlet pipes are arranged on the outside of the box body, and the water inlet pipes and the water outlet pipes respectively communicate with the first channel and the second channel.

5. The heating device of claim 1, wherein, A plurality of supports are arranged on the side wall of the heating portion, the supports are supported on the inner side wall of the containing space, so that the axis of the heating portion coincides with the axis of the containing space.

6. The heating device of claim 1, wherein, The heating portion and the protruding portion are in a sheet shape.

7. The heating device of claim 3, wherein The heating portion is inserted into the containing space along a second direction, and the second direction is a length direction or a width direction of the heating portion. The protruding portions are sequentially connected with the partition plate and the side wall of the box body along the first direction, so that the first channel and the second channel surround the outer side wall of the protruding portion.

8. A heater characterized by, The heater comprises: a heating device arranged in the heater, and the heating device is any one of the heating devices according to claims 1-7.

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