Heating device and bath heater

Abstract

The invention relates to the technical field of heating equipment, and provides a heating device and a bath heater. Wherein the heating device comprises at least one heating block group, and when a plurality of heating block groups are arranged, the plurality of heating block groups are mutually spliced; the heating block set comprises a heating piece and conductive heat dissipation pieces located on the two sides of the heating piece respectively, and the widths of at least partial areas of the conductive heat dissipation pieces are not equal in the direction from one end of the heating piece to the other end of the heating piece. In this way, heating devices of different shapes and sizes can be constructed by adjusting the sizes and the number of the heating block sets so as to adapt to air outlets of different shapes and sizes, and therefore the design requirements of different bath heaters are met; the heating device adopts a structure that a plurality of heating block groups are mutually spliced, so that the convenience of adjusting the shape and the size of the heating device is improved, and the manufacturing difficulty and the production cost are relatively low.

Description

Technical Field

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

[0002] Currently, the heating element in a fan-heated bathroom heater mainly uses a conventional rectangular PTC (Potentially Transmitted Chlorine) heater. Rectangular PTCs are relatively easy to manufacture and have a lower cost, and the air outlet on the heater's panel is correspondingly designed as a rectangular outlet. However, as people's requirements for the appearance of fan-heated bathroom heaters have gradually increased, the air outlet on the panel is no longer limited to the conventional rectangular outlet. Usually, the outlet is designed in shapes such as circular, annular, fan-shaped, or fan-ring-shaped. However, the shape of the heating element is fixed, making it difficult for conventional heating elements to adapt to the design of different shaped air outlets. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this application provides a heating device and a bathroom heater.

[0004] The first aspect of this application provides a heating device, including at least one heating block group, wherein when there are multiple heating block groups, the multiple heating block groups are spliced ​​together.

[0005] The heating block assembly includes a heating element and conductive heat dissipation components located on both sides of the heating element. Along the direction from one end of the heating element to the other end, the width of at least a portion of the conductive heat dissipation components is not equal.

[0006] The heating device provided in this application includes a heating element and conductive heat sinks located on both sides of the heating element. The width of at least a portion of the conductive heat sinks is not equal along the direction from one end of the heating element to the other end, so that the heating element and the conductive heat sinks on both sides can be constructed together into a non-rectangular shape. Thus, by splicing together one or more heating element groups, heating structures of shapes other than rectangular shapes can be formed to adapt to air outlets of different shapes and sizes, thereby meeting the design requirements of different bathroom heaters. Furthermore, the heating device adopts a structure of splicing together multiple heating element groups, which can improve the convenience of adjusting the shape and size of the heating device, and has lower manufacturing difficulty and production cost.

[0007] In some embodiments, the width of the conductive heat sink on both sides gradually decreases along the direction from one end of the heating element to the other end.

[0008] In some embodiments, there are multiple heating block groups, which are arranged sequentially along the circumferential direction, and the first and last heating block groups are spliced ​​together to form a circular or annular heating structure.

[0009] Alternatively, there may be multiple heating block groups, which are arranged sequentially along the circumferential direction, with the first and last heating block groups spaced apart from each other along the circumferential direction, to jointly construct a fan-shaped or fan-ring-shaped heating structure.

[0010] In some embodiments, the conductive heat sink includes a first conductive sheet, a heat sink, and a second conductive sheet;

[0011] The first conductive sheet is attached to the heating element, the second conductive sheet is disposed opposite to the first conductive sheet, the heat sink is connected between the first conductive sheet and the second conductive sheet, and the width of at least a portion of the heat sink is not equal along the direction from one end of the heating element to the other end.

[0012] In some embodiments, the width of the heat sink gradually decreases along the direction from one end of the heat sink to the other end, causing the first conductive sheet and the second conductive sheet on both sides to tilt and approach each other.

[0013] In some embodiments, when there are multiple heating blocks, there are two conductive heat sinks between two adjacent heating elements, the two conductive heat sinks share the same second conductive sheet, or the two conductive heat sinks each have their own second conductive sheet.

[0014] In some embodiments, the heat sink is a corrugated sheet, which includes a plurality of connecting pieces. Along the direction from one end of the heat sink to the other end, the plurality of connecting pieces are folded and connected in sequence, and the length of the plurality of connecting pieces gradually decreases, so that the corrugated sheet as a whole is constructed into an isosceles triangular corrugated sheet or an isosceles trapezoidal corrugated sheet with a gradually decreasing width.

[0015] In some embodiments, the included angle between the two sides of the isosceles triangle or isosceles trapezoid formed by the corrugated sheet as a whole is α, and α is determined by the overall shape of the heating device and the number n of the heating block groups included.

[0016] When the heating device is a structure formed by connecting multiple heating block groups end to end, α = 180° / n;

[0017] When the heating device is a structure in which multiple heating block groups are connected in sequence and the first and last heating block groups are spaced apart, the corresponding central angle is β, and α = β / 2n.

[0018] In some embodiments, the width of the corrugated sheet in the direction from the first conductive sheet to the second conductive sheet is the tooth height, and the tooth height at a specified position on the corrugated sheet is determined by the following formula:

[0019]

[0020] Wherein, H is the tooth height at a specified position on the corrugated sheet, R is the distance between the specified position and the intersection of the extension lines of the first and second conductive sheets on both sides of the corrugated sheet, T1 is the thickness of the second conductive sheet, T2 is the thickness of the first conductive sheet, and T3 is the thickness of the heating element.

[0021] In some embodiments, the spacing between any two adjacent connecting pieces gradually increases or becomes equal along the direction from one end of the heating element to the other.

[0022] In some embodiments, the second conductive sheet extends from one end of the heating element toward the other end, and the end of the second conductive sheet extending out of the heating element forms an electrical connection portion, which is used to connect to the positive or negative terminal of a power source.

[0023] A second aspect of this application provides a bathroom heater, including a housing, a fan, and a heating device as described in any of the above embodiments;

[0024] The housing is provided with an air inlet and an air outlet. The fan and the heating device are disposed inside the housing. The heating device is located between the fan and the air outlet, and the shape of the heating device is adapted to the shape of the air outlet. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an exploded view of the heating block assembly described in the embodiments of this application;

[0028] Figure 2 This is one of the front views of the heating block assembly described in the embodiments of this application;

[0029] Figure 3 This is a second front view of the heating block assembly described in the embodiments of this application;

[0030] Figure 4 This is a front view of the corrugated sheet described in the embodiments of this application;

[0031] Figure 5 This is a front view of the heating device described in the embodiments of this application when it is fan-shaped;

[0032] Figure 6 This is a front view of the heating device described in the embodiments of this application when it is circular;

[0033] Figure 7 This is a front view of the heating device described in the embodiments of this application when it is a fan-shaped ring;

[0034] Figure 8 This is a front view of the heating device described in the embodiments of this application when it is annular;

[0035] Figure 9 This is an exploded view of the bathroom heater described in the embodiment of this application;

[0036] Figure 10 This is a schematic diagram of the cross-sectional structure of the bathroom heater described in the embodiment of this application.

[0037] Among them, 1. Heating element; 11. Sub-element body; 12. First end; 13. Second end; 2. Conductive heat dissipation component; 21. First conductive sheet; 22. Heat dissipation sheet; 221. Connecting piece; 23. Second conductive sheet; 231. Electrical connection part; 31. Housing; 32. Cover plate; 321. First through hole; 322. Second through hole; 33. Outer panel; 34. Air inlet; 35. Air outlet; 4. Fan; 41. Impeller; 42. Motor; 5. Air guide seat; 51. Bracket; 61. Grille; 62. Protective cover; 7. Air guide channel. Detailed Implementation

[0038] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0040] Reference Figures 1 to 10 As shown, some embodiments of this application provide a heating device, including at least one heating block group. When there are multiple heating block groups, the multiple heating block groups are spliced ​​together. The heating block group includes a heating element 1 and conductive heat sinks 2 located on both sides of the heating element 1. Along the direction from one end of the heating element 1 to the other end, the width of at least a portion of the conductive heat sink 2 is not equal.

[0041] It should be noted that the conductive heat sink 2 has a side that is relatively close to the heating element 1 and a side that is relatively far away from the heating element 1, and the distance between the two sides of the conductive heat sink 2 is the width of the conductive heat sink 2.

[0042] By setting the width of at least a portion of the conductive heat sink 2 to be unequal along the direction from one end of the heating element 1 to the other, that is, the distance between the two sides of the conductive heat sink 2 is not exactly the same along the direction from one end of the heating element 1 to the other, the heating element 1 and the conductive heat sink 2 on both sides can be constructed together into a non-rectangular shape. Thus, by splicing together one or more heating block groups, heating structures of other shapes besides rectangular shapes can be formed to adapt to air outlets of different shapes and sizes, thereby meeting the design requirements of different bathroom heaters. Furthermore, the structure of multiple heating block groups splicing together can improve the convenience of adjusting the shape and size of the heating device, and the manufacturing difficulty and production cost are relatively low.

[0043] Specifically, the heating element 1 can be a plate structure made of positive temperature coefficient ceramic. The two ends of the heating element 1 can be the first end 12 and the second end 13, respectively. The conductive heat sink 2 can be a block that is easy to process, such as a fan-shaped, angular, rhomboid, isosceles trapezoid, etc., except for rectangular and circular block structures. As long as the side of the conductive heat sink 2 close to the heating element 1 and the side of the conductive heat sink 2 away from the heating element 1 are inclined, multiple heating blocks can be spliced ​​together to form a circular, annular, fan-shaped or fan-annular structure, so that the heating device can be adapted to various shapes of air outlets.

[0044] The aforementioned conductive heat sink 2 can be a block made of metal, and a part of the block can be a metal mesh structure to allow air to pass through the metal mesh. Alternatively, the edge of the conductive heat sink 2 can be a metal frame, and the middle part of the conductive heat sink 2 can be a corrugated sheet. The width of the corrugated sheet gradually decreases along the direction from the first end 12 to the second end 13, thereby forming a triangular or isosceles trapezoidal structure, allowing air to pass through the gap between the corrugated sheet and the metal frame.

[0045] The conductive heat sink 2 on one side of the heating element 1 is connected to the positive terminal of the power supply, and the conductive heat sink 2 on the other side is connected to the negative terminal of the power supply, so that current can flow through the heating element 1, thereby generating heat. The heat generated by the heating element 1 is transferred to the two conductive heat sinks 2, and the air is heated by passing through the conductive heat sinks 2, so that the heating device can complete the operation of heating the air.

[0046] The two conductive heat sinks 2 are connected to both sides of the heating element 1. The two ends of the heating element 1 can be selected as the first end 12 and the second end 13, respectively. In the direction perpendicular to the first end 12 towards the second end 13, the distance between the side of the conductive heat sink 2 away from the heating element 1 and the heating element 1 is the width of the conductive heat sink 2. The two conductive heat sinks 2 are symmetrical about the heating element 1 in the direction perpendicular to the first end 12 towards the second end 13. A sector is a shape formed by an arc and two radii passing through the two ends of this arc. A sector ring is a shape in which a portion of a ring is cut off by a sector.

[0047] The heating block assembly includes a heating element 1 and conductive heat sinks 2 located on both sides of the heating element 1. The width of the conductive heat sinks 2 on both sides can be gradually reduced along the direction from one end of the heating element 1 to the other end, so that the conductive heat sinks 2 are fan-shaped or fan-ring structure. Thus, the heating element 1 and the conductive heat sinks 2 on both sides together form a fan-shaped or fan-ring structure. Multiple heating block assemblies can be spliced ​​together to form a circular, ring-shaped, fan-shaped or fan-ring structure, so that the heating device can be adapted to various shapes of air outlets.

[0048] Alternatively, the width of the conductive heat sink 2 can be gradually reduced along the direction from one end of the heating element 1 to the other end, so that the conductive heat sink 2 forms a triangular and isosceles trapezoidal structure. The heating element 1 and the two conductive heat sinks 2 can approximate a fan-shaped or fan-ring structure, so that multiple heating blocks can be spliced ​​together to form a circular, ring-shaped, fan-shaped or fan-ring structure, so that the heating device can be adapted to various shapes of air outlets.

[0049] Alternatively, or not limited to, the width of the conductive heat sink 2 gradually increases and then gradually decreases to form a rhomboid conductive heat sink 2. When multiple heating blocks are spliced ​​together, the sides of the rhomboid conductive heat sink 2 near the end of the heating element 1 are attached to each other. The heating element 1 and the two rhomboid conductive heat sinks 2 are connected to form at least a part of the heating block group, which can form an approximately fan-shaped structure. Thus, multiple heating block groups can be spliced ​​together to form a circular structure to fit the circular air outlet.

[0050] Alternatively, the width of a portion of the conductive heat sink 2 gradually decreases along the direction from one end of the heating element 1 to the other, while the width of the remaining portion remains unchanged. This allows the gradually decreasing width portion to form a triangular or isosceles trapezoidal structure. When multiple heating blocks are assembled, the edges of the conductive heat sink 2 in the gradually decreasing width portion fit together, so that the assembled multiple heating blocks can form a structure that is approximately circular, annular, fan-shaped, or fan-annular, thus enabling the heating device to adapt to various shapes of air outlets.

[0051] When the heating device provided in this application embodiment is used, a suitable heating element 1 and conductive heat dissipation component 2 are selected according to the shape and size of the air outlet of the fan-heated bathroom heater.

[0052] When the air outlet is fan-shaped or fan-ring-shaped, multiple heating block groups are spliced ​​together along the circumference, and the head and tail of the multiple heating block groups are spaced apart from each other, so that the multiple heating block groups form a fan-shaped or fan-ring-shaped structure, thereby making the heating device formed by the multiple heating block groups compatible with the shape of the air outlet.

[0053] When the air outlet is circular or annular, multiple heating blocks are spliced ​​together along the circumference, and the head and tail of the multiple heating blocks are connected to each other so that the multiple heating blocks form a circular or annular air outlet, thereby making the heating device formed by the multiple heating blocks and the shape of the air outlet compatible.

[0054] The heating device provided in this application embodiment includes a heating element 1 and conductive heat sinks 2 located on both sides of the heating element. Along the direction from one end of the heating element 1 to the other end, the width of at least a portion of the conductive heat sinks 2 is not equal, so that the heating element 1 and the conductive heat sinks 2 on both sides can be constructed together into a non-rectangular shape. In this way, by splicing together one or more heating element groups, heating structures of other shapes besides rectangular shapes can be formed to adapt to air outlets of different shapes and sizes, thereby meeting the design requirements of different bathroom heaters. Furthermore, the heating device adopts a structure of splicing together multiple heating element groups, which can improve the convenience of adjusting the shape and size of the heating device, and has lower manufacturing difficulty and production cost.

[0055] In practical implementation, the size and shape of the conductive heat sink 2 can be adjusted so that a heating block group can be adapted to a fan-shaped or fan-ring-shaped air outlet; of course, multiple heating block groups can also be arranged sequentially along the circumference to jointly construct a circular, ring-shaped, fan-shaped or fan-ring-shaped heating device to adapt to the air outlet shape of different bathroom heaters. Furthermore, by increasing or decreasing the number of heating block groups, the shape and size of the heating device can be easily adjusted so that the heating device can be adapted to a circular, ring-shaped, fan-shaped or fan-ring-shaped air outlet.

[0056] Reference Figures 1 to 8 As shown, in some embodiments, the width of the conductive heat sink 2 on both sides gradually decreases along the direction from one end of the heating element 1 to the other. This arrangement causes the two sides of the conductive heat sink 2 that are close to and away from the heating element 1 to be inclined relative to each other, so that the heating element 1 and the two conductive heat sinks 2 can form a heating block group that is approximately fan-shaped or fan-shaped, which facilitates the splicing of multiple heating block groups to form an air outlet that is compatible with circles, rings, fans, and fan-shaped rings.

[0057] Specifically, the width of the conductive heat sink 2 gradually decreases, allowing it to form an isosceles triangle, isosceles trapezoid, fan-shaped, or fan-ring structure. When the conductive heat sink 2 is an isosceles triangle or isosceles trapezoid, the conductive heat sink 2 is arranged on both sides of the heating element 1 to form a heating block group that approximates a fan-shaped or fan-ring shape. When the conductive heat sink 2 is a fan-shaped or fan-ring shape, the conductive heat sink 2 is arranged on both sides of the heating element 1 to form a fan-shaped or fan-ring shape. The heating element 1 and the conductive heat sinks on both sides can form a symmetrical heating block group about the heating element 1. Of course, the heating element 1 and the conductive heat sinks on both sides can also be constructed together into a non-perfectly symmetrical fan-shaped or fan-ring structure, which can be reasonably set according to actual needs.

[0058] Specifically, multiple heating block groups can be arranged sequentially along the circumference to jointly construct a circular, annular, fan-shaped, or fan-ring-shaped heating device, or multiple heating block groups can be constructed to form a heating device that approximates a circle, annular, fan-shaped, or fan-ring shape. Of course, multiple heating block groups can also be spliced ​​together to form heating devices of other shapes, which can be reasonably set according to actual needs.

[0059] The lengths of the straight sides of the conductive heat sink 2 near the heating element 1 and away from the heating element 1 are equal, and the angle of the central angle corresponding to the conductive heat sink 2 is less than 90°. Thus, the central angle of the heating block group formed by setting a conductive heat sink 2 on each side of the heating element 1 is less than 180°. When the heating device is circular or annular, the heating device includes at least two heating block groups.

[0060] When the conductive heat sink 2 is fan-shaped or isosceles triangle, the end of the conductive heat sink 2 closest to the second end 13 is flush with the second end 13, thereby forming a fan-shaped or approximately fan-shaped structure with the heating element 1. When the conductive heat sink 2 is fan-shaped or isosceles trapezoid, the conductive heat sink 2 is positioned between the first end 12 and the second end 13, or the end of the conductive heat sink 2 closest to the second end 13 is flush with the second end 13, as long as the heating element 1 and the two conductive heat sink 2 can form a fan-shaped or approximately fan-shaped structure.

[0061] When the heating device is circular and two adjacent conductive heat sinks 2 are connected to each other in a shared manner, the two adjacent conductive heat sinks 2 are connected to the positive or negative terminal of the power supply. In this case, the number of heating block groups needs to be even, so that the conductive heat sinks 2 on both sides of each heating element 1 are connected to the positive and negative terminals of the power supply, respectively. Of course, it is also possible to choose to connect two adjacent conductive heat sinks 2 to each other and set an insulating film in the middle to insulate them from each other, so that when the heating device is circular, the heating device is formed by connecting any number of heating block groups.

[0062] The direction from the first end 12 to the second end 13 of the aforementioned heating element 1 is the length direction of the heating element 1. By adjusting the length of the heating element 1 and the dimensions of the conductive heat sink 2 along the length direction of the heating element 1, the size and area of ​​the heating block assembly can be adjusted, thus allowing a single heating block assembly to adapt to fan-shaped or fan-shaped air outlets of various angles and sizes. The heating element 1 can optionally include multiple sub-pieces 11, which are arranged sequentially and interconnected along the direction from the first end 12 to the second end 13. By increasing or decreasing the number of sub-pieces 11, the length of the heating element 1 can be easily adjusted.

[0063] Reference Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, there are multiple heating block groups arranged sequentially along the circumference, with the first and last heating block groups joined together to form a circular or annular heating structure; or, there are multiple heating block groups arranged sequentially along the circumference, with the first and last heating block groups spaced apart along the circumference to form a fan-shaped or fan-annular heating structure. This arrangement allows the shape and size of the heating device to be adjusted by changing the arrangement and connection of the multiple heating block groups, enabling the heating device to easily adapt to circular, annular, fan-shaped, or fan-annular air outlets.

[0064] Specifically, isosceles triangular conductive heat sinks 2 are connected to both sides of the heating element 1 to form a heating block assembly. Although the conductive heat sink 2 has a straight structure on the side near the first end 12 of the heating element 1, the overall shape of the heating block assembly is approximately fan-shaped. Isosceles trapezoidal conductive heat sinks 2 are connected to both sides of the heating element 1 to form a heating block assembly. Although the conductive heat sink 2 has a straight structure on the sides near the first end 12 and the second end 13 of the heating element 1, the overall shape of the heating block assembly is approximately fan-shaped.

[0065] When the conductive heat sink 2 is fan-shaped or fan-ring-shaped, the conductive heat sink 2 is connected to the heating element 1. Although the heating element 1 has a certain thickness, the thickness of the heating element 1 is smaller than the width of the conductive heat sink 2. Therefore, the heating block group formed by the fan-shaped conductive heat sink 2 connected to the heating element 1 can be regarded as fan-shaped; the heating block group formed by the fan-ring-shaped conductive heat sink 2 connected to the heating element 1 can be regarded as fan-ring-shaped.

[0066] When the aforementioned conductive heat sink 2 is an isosceles trapezoid or fan-shaped, the shape of the heating block assembly is approximately fan-shaped or fan-shaped. Therefore, multiple heating block assemblies joined end to end form a circular or fan-shaped heating structure. When the aforementioned conductive heat sink 2 is an isosceles trapezoid or fan-shaped ring, the shape of the heating block assembly is approximately fan-shaped or fan-shaped. Therefore, multiple heating block assemblies joined end to end form a circular or fan-shaped heating structure.

[0067] After n heating block groups are arranged sequentially along the circumference, one heating block group is taken as the head, and the nth heating block group in one direction along the circumference is the tail. The head heating block group and the tail heating block group are connected to each other. When the heating block groups are approximately fan-shaped or fan-shaped, a circular heating structure can be formed, such as... Figure 6 As shown; when the heating block assembly is approximately fan-shaped or fan-shaped, it can form an approximately circular heating structure, such as... Figure 8 As shown.

[0068] The heating block groups at the head and tail are spaced apart, allowing multiple interconnected heating block groups to form a fan-shaped or fan-ring-shaped heating structure. A fan-shaped heating block group can create a fan-shaped heating structure, such as... Figure 5 As shown, when the heating block assembly is in the shape of a fan ring, a fan ring heating structure can be formed, such as... Figure 6 As shown.

[0069] When the air outlet is fan-shaped and the central angle of the air outlet is small, by connecting appropriately sized fan-shaped or near-fan-shaped conductive heat sinks 2 to both sides of the heating element 1, a heating block group can form a fan-shaped structure, thus allowing the heating block group to adapt to the fan-shaped air outlet. When the central angle of the air outlet is large, an appropriate number of fan-shaped or near-fan-shaped heating block groups are arranged along the circumference, and adjacent conductive heat sinks 2 are connected to each other, so that multiple heating block groups form a fan-shaped heating structure, thereby adapting the shape and size of the heating device to the air outlet.

[0070] When the air outlet is circular, multiple fan-shaped heating blocks are arranged along the circumference. These heating blocks are interconnected, and the heating blocks at the head and tail are also interconnected, thus forming an approximately circular heating structure that adapts the circular heating device to the shape and size of the air outlet.

[0071] When the air outlet is a fan-shaped ring and the central angle of the air outlet is small, by connecting appropriately sized fan-shaped or near-fan-shaped conductive heat sinks 2 to both sides of the heating element 1, a heating block group can form a fan-shaped ring structure, thus allowing the heating block group to fit the fan-shaped air outlet. When the central angle of the air outlet is large, an appropriate number of fan-shaped or near-fan-shaped heating block groups are arranged along the circumference, with adjacent conductive heat sinks 2 spaced apart, so that multiple heating block groups are spliced ​​together with their ends spaced apart to form a fan-shaped heating structure, thereby adapting the shape and size of the heating device to the air outlet.

[0072] When the air outlet is circular, multiple fan-shaped or nearly fan-shaped heating blocks are arranged along the circumference. These multiple heating blocks are connected to each other, and the heating blocks at the head and tail are connected to each other, thus forming a circular heating structure that adapts the circular heating device to the shape and size of the air outlet.

[0073] In practical implementation, the size and shape of the conductive heat sink 2 can be adjusted so that a heating block group can be adapted to a fan-shaped or fan-ring-shaped air outlet; multiple heating block groups are arranged in sequence along the circumference and can be used to construct a circular, ring-shaped, fan-shaped or fan-ring-shaped heating structure to adapt to the air outlet shape of different bathroom heaters. Furthermore, by increasing or decreasing the number of heating block groups, the shape and size of the heating device can be easily adjusted so that the heating device can be adapted to a circular, ring-shaped, fan-shaped or fan-ring-shaped air outlet.

[0074] Reference Figures 1 to 4 As shown, in some embodiments, the conductive heat sink 2 includes a first conductive sheet 21, a heat sink 22, and a second conductive sheet 23. The first conductive sheet 21 is bonded to the heating element 1, the second conductive sheet 23 is disposed opposite to the first conductive sheet 21, and the heat sink 22 is connected between the first conductive sheet 21 and the second conductive sheet 23. Along the direction from one end of the heating element 1 to the other end, the width of at least a portion of the heat sink is unequal. This arrangement allows the first conductive sheet 21 and the second conductive sheet 23 to be connected to a power source to supply power to the heating element 1, while the heat sink 22 receives the heat generated by the heating element 1 and heats the air passing through it. This allows the conductive heat sink 2 to supply power to the heating element 1 while simultaneously providing good heating to the air.

[0075] Specifically, the first conductive sheet 21, the second conductive sheet 23, and the heat sink 22 can all be made of metal. The heat sink 22 can be connected to the first conductive sheet 21 and the second conductive sheet 23 by welding, or the first conductive sheet 21, the second conductive sheet 23, and the heat sink 22 can be made as a single unit by casting in a mold.

[0076] The width of the heat sink can be gradually reduced from the first end 12 to the second end 13, so that the heat sink is an isosceles triangle, an isosceles trapezoid, a sector, or a sector ring, thereby bringing the first conductive sheet 21 and the second conductive sheet 23 closer to each other along the direction from the first end 12 to the second end 13. The width of the heat sink can be gradually increased and then gradually decreased from the first end 12 to the second end 13, so that the heat sink forms a rhomboid structure. The first conductive sheet 21 and the second conductive sheet 23 are connected on both sides of the heat sink. The first conductive sheet 21 and the second conductive sheet 23 can be inclined closer to each other along the direction from the second end 13 to the first end 12, or the first conductive sheet 21 and the second conductive sheet 23 can be inclined closer to each other along the direction from the first end 12 to the second end 13.

[0077] Reference Figures 1 to 4As shown, in some embodiments, the width of the heat sink gradually decreases along the direction from one end of the heat sink to the other, causing the first and second conductive sheets on both sides to tilt closer to each other. With this configuration, by adjusting the degree to which the width of the heat sink 22 decreases, the relative tilt angle between the first conductive sheet 21 and the second conductive sheet 23 can be adjusted, thereby adjusting the area of ​​the fan-shaped or fan-shaped annular shape formed by the conductive heat sink 2, so as to facilitate the heat sink assembly to adapt to air outlets of different shapes and sizes.

[0078] The first conductive sheet 21 and the second conductive sheet 23 are inclined relative to each other and approach each other in the direction from the first end 12 to the second end 13. When the end of the first conductive sheet 21 near the second end 13 abuts against the end of the second conductive sheet 23 near the second end 13, the first conductive sheet 21, the heat sink 22, and the second conductive sheet 23 form a fan shape. When the distance between the end of the first conductive sheet 21 near the second end 13 and the end of the second conductive sheet 23 near the second end 13 is small, the conductive heat sink 2 formed by the first conductive sheet 21, the heat sink 22, and the second conductive sheet 23 is approximately fan-shaped.

[0079] When the end of the first conductive sheet 21 near the second end 13 and the end of the second conductive sheet 23 near the second end 13 are arranged at a large distance, the first conductive sheet 21, the heat sink 22 and the second conductive sheet 23 form a fan ring.

[0080] The aforementioned heat sink 22 can be selected as a corrugated sheet, with the corrugated sheet arranged from the first end 12 towards the second end 13, and the width of the corrugated sheet gradually decreasing from the first end 12 towards the second end 13, so that the corrugated sheet is connected to the first conductive sheet 21 and the second conductive sheet 23. Alternatively, the heat sink 22 can be selected as a grid structure formed by multiple spaced or intersecting metal sheets, as long as the heat from the heating element 1 can be transferred to the heat sink 22, and air can pass through the heat sink 22, allowing the heat sink 22 to exchange heat with the air to heat the air.

[0081] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, when there are multiple heating blocks, two conductive heat sinks 2 are provided between two adjacent heating elements 1. The two conductive heat sinks 2 share the same second conductive sheet 23, or each of the two conductive heat sinks 2 has its own second conductive sheet 23. With this configuration, when the two conductive heat sinks 2 share a second conductive sheet 23, the connection structure between the two conductive heat sinks 2 is stable, and the material of the conductive heat sinks 2 can be saved, reducing costs; when each of the two conductive heat sinks 2 has its own second conductive sheet 23, the two conductive heat sinks 2 are connected after being attached to each other, making the operation of connecting the two conductive heat sinks 2 simple and convenient.

[0082] Specifically, when two adjacent conductive heat sinks 2 are connected to each other, the second conductive plate 23 of one conductive heat sink 2 is connected to the heat sink 22 of the other conductive heat sink 2. Thus, in the direction from one heat sink 1 to the other, the structure of the conductive heat sink 2 between the two heat sinks 1 is sequentially: first conductive plate 21, heat sink 22, second conductive plate 23, heat sink 22, and first conductive plate 21. That is, two adjacent conductive heat sinks 2 share the same second conductive plate 23. For example... Figures 5 to 8 As shown. At this time, two adjacent conductive heat sinks 2 are simultaneously connected to the positive or negative terminal of the power supply. When the heating device is annular or circular, the heating device includes an even number of heating block groups, so that the conductive heat sink 2 on one side of the heating element 1 of each heating block group is connected to the positive terminal of the power supply, and the conductive heat sink 2 on the other side is connected to the negative terminal of the power supply.

[0083] Alternatively, the two second conductive plates 23 of two adjacent conductive heat sinks 2 can be bonded together. In this case, the two adjacent conductive heat sinks 2 are simultaneously connected to the positive or negative terminal of the power supply. When the heating device is annular or circular, the heating device includes an even number of heating block groups. Alternatively, and not limited to this, an insulating film can be provided between the two adjacent second conductive plates 23, and insulating adhesive can be used to bond the two second conductive plates 23 to the insulating film respectively, thereby insulating the two adjacent second conductive plates 23 from each other. In this case, one of the two adjacent second conductive plates 23 can be connected to the positive terminal of the power supply, and the other can be connected to the negative terminal of the power supply.

[0084] Reference Figures 1 to 4 As shown, in some embodiments, the heat sink 22 is a corrugated sheet, which includes multiple connecting pieces 221. Along the direction from one end of the heating element 1 to the other, the multiple connecting pieces 221 are folded and connected sequentially, and the length of the multiple connecting pieces 221 gradually decreases, so that the corrugated sheet as a whole is constructed as an isosceles triangular or isosceles trapezoidal corrugated sheet with a gradually decreasing width. This configuration simplifies the fabrication of the corrugated sheet, reduces costs, and allows it to support the first conductive piece 21 and the second conductive piece 23. The serrated structure formed by the folding of the corrugated sheet creates numerous gaps between it and the first and second conductive pieces 21, facilitating sufficient heat exchange between air passing through these gaps and the corrugated sheet, thereby improving the heating efficiency of the heating device.

[0085] Specifically, the corrugated sheet is a sheet structure formed by arranging and connecting multiple connecting pieces 221 along the direction from the first end 12 to the second end 13. One end of two adjacent connecting pieces 221 are connected to each other to form a connecting piece group, that is, two adjacent connecting pieces 221 are folded and connected to form a "V" shaped structure. Multiple connecting piece groups are arranged sequentially and connected to each other along the direction from the first end 12 to the second end 13.

[0086] The direction from the first conductive sheet 21 to the second conductive sheet 23 can be chosen as the length direction of the connecting piece 221. Along the direction from the second end 13 to the first end 12, the length of the multiple connecting pieces 221 gradually increases, allowing the first conductive sheet 21 and the second conductive sheet 23 connected to both sides of the corrugated sheet to tilt relative to each other. The direction from the first conductive sheet 21 to the second conductive sheet 23 is the width direction of the corrugated sheet. When the width of the corrugated sheet near the second end 13 is smaller, the shape formed by the corrugated sheet is an isosceles triangle. After the isosceles triangular corrugated sheet is connected between the first conductive sheet 21 and the second conductive sheet 23, it forms an approximately fan-shaped conductive heat sink 2.

[0087] When the width of the corrugated sheet near the second end 13 is large, so that a distinct plane is formed near the second end 13, the overall shape of the corrugated sheet is an isosceles trapezoid. After the isosceles trapezoidal corrugated sheet is connected between the first conductive sheet 21 and the second conductive sheet 23, it forms an approximately fan-shaped conductive heat sink 2.

[0088] Reference Figures 1 to 4 As shown, in some embodiments, the angle between the two sides of the isosceles triangle or isosceles trapezoid formed by the corrugated sheet as a whole is α, where α is determined by the overall shape of the heating device and the number n of the heating block groups included.

[0089] When the heating device is a structure formed by connecting multiple heating block groups end to end, α=180° / n;

[0090] When the heating device consists of multiple heating block groups connected sequentially, with the first and last heating block groups spaced apart, the corresponding central angle is β, where α = β / 2n. With this configuration, the angle of each corrugated sheet can be determined based on the number of heating block groups included in the heating device.

[0091] Specifically, in a circular or annular heating device, the overall angle of the heating device is 360°, and the angle occupied by each heating block group is 360° / n. Each heating block group includes two conductive heat sinks 2, therefore the angle α occupied by the corrugated sheet of the conductive heat sink 2 is 180° / n. In a sector-shaped or sector-annular heating device, the central angle corresponding to the heating device is β, and the angle occupied by each heating block group is β / n. Each heating block group includes two conductive heat sinks 2, therefore the angle α occupied by the corrugated sheet of the conductive heat sink 2 is β / 2n.

[0092] Reference Figures 1 to 4 As shown, in some embodiments, the width of the corrugated sheet in the direction from the first conductive sheet 21 toward the second conductive sheet 23 is the tooth height, and the tooth height at a specified position on the corrugated sheet is determined by the following formula:

[0093]

[0094] Wherein, H is the tooth height at a specified position on the corrugated sheet, R is the distance between the specified position and the intersection of the extension lines of the first and second conductive sheets on both sides of the corrugated sheet, T1 is the thickness of the second conductive sheet 23, T2 is the thickness of the first conductive sheet 21, and T3 is the thickness of the heating element 1.

[0095] With this setup, the tooth height H at any position on the corrugated sheet can be determined by formula, providing guidance for the production of the corrugated sheet, improving the production accuracy of the corrugated sheet, and enabling the corrugated sheet to form a conductive heat sink 2 of the required size and shape after being connected with the first conductive sheet 21 and the second conductive sheet 23.

[0096] Specifically, such as Figure 4 As shown, H represents the dimension of the first conductive sheet 21 facing the second conductive sheet 23. The first conductive sheet 21 and the second conductive sheet 23 are attached to both sides of the corrugated sheet, causing them to tilt relative to each other. Therefore, the extension lines of the first conductive sheet 21 and the second conductive sheet 23 intersect, and the intersection point of the extension lines of the first conductive sheet 21 and the second conductive sheet 23 is the base point o. Alternatively, the edges of both sides of the corrugated sheet can be chosen to lie on two straight lines, with the two straight lines tilting relative to each other, and the intersection point of the two straight lines being the base point o. Figure 4 As shown, the distance from a specified position on the corrugated sheet to the base point o is the radius R.

[0097] The thickness T1 of the second conductive sheet 23 is the circumferential dimension of the second conductive sheet 23 when multiple heating block groups are spliced ​​together. The thickness T2 of the first conductive sheet 21 is the circumferential dimension of the first conductive sheet 21 when multiple heating block groups are spliced ​​together. The thickness T3 of the heating sheet 1 is the circumferential dimension of the heating sheet 1 when multiple heating block groups are spliced ​​together.

[0098] The first conductive sheet 21 and the second conductive sheet 23 form an isosceles triangle. Therefore, dividing the isosceles triangle formed by the first conductive sheet 21 and the second conductive sheet 23 into equal parts will yield two right triangles. H0 is the sum of half the tooth height H of the corrugated sheet, the thickness T1 of the second conductive sheet 23, the thickness T2 of the first conductive sheet 21, and half the thickness T3 of the heating element 1.

[0099] That is

[0100] Therefore, according to the trigonometric function relationship:

[0101]

[0102] We can obtain:

[0103] Therefore, we can conclude that:

[0104] When the heating device is circular or annular, it can be selected to include n heating block groups, with the included angle of a single heating block group being 360° / n. The α corresponding to the corrugated sheet is 180° / n. Substituting α = 180° / n into the formula, we can obtain:

[0105]

[0106] When the heating device is fan-shaped or fan-ring-shaped, the central angle corresponding to the heating device is β, the angle occupied by each heating block group is β / n, and the α corresponding to the corrugated sheet is β / 2n.

[0107] Substituting α = β / 2n into the formula, we can obtain:

[0108]

[0109] Reference Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments, along the direction from one end of the heating element 1 to the other end, the spacing between each pair of adjacent connecting pieces 221 gradually increases, decreases, remains equal, or varies irregularly. This arrangement allows the variation in the spacing between each pair of adjacent connecting pieces 221 to change the size of the gap formed between the two connecting pieces 221 and the first conductive piece 21 and the second conductive piece 23, facilitating air passage through the corrugated sheet and enabling sufficient heat exchange between the corrugated sheet and the air. The equal spacing between each pair of adjacent connecting pieces 221 facilitates the fabrication of the corrugated sheet.

[0110] Specifically, since the first conductive piece 21 and the second conductive piece 23 at the second end 13 are relatively close, the spacing between any two adjacent connecting pieces 221 can be gradually increased along the direction from the first end 12 to the second end 13, ensuring that gas can pass through the corrugated sheet of the conductive heat sink 2 near the second end 13. Alternatively, the spacing between any two adjacent connecting pieces 221 can be gradually decreased along the direction from the first end 12 to the second end 13, allowing more air to pass through the conductive heat sink 2 near the first end 12. Of course, the spacing between any two adjacent connecting pieces 221 can also be adjusted along the direction from the first end 12 to the second end 13, first increasing and then decreasing, or first decreasing and then increasing, or the distance between multiple connecting pieces 221 in some areas is greater than the distance between multiple connecting pieces 221 in other areas, resulting in irregular variations in the spacing between any two adjacent connecting pieces 221. Alternatively, the spacing between any two adjacent connecting pieces 221 can be equal along the direction from the first end 12 to the second end 13, facilitating the fabrication of the corrugated sheet.

[0111] Reference Figure 2 and Figure 3 As shown, in some embodiments, the second conductive sheet 23 extends from one end of the heating element 1 toward the other end, and the end of the second conductive sheet 23 extending out of the heating element 1 forms an electrical connection portion 231, which is used to connect to the positive or negative terminal of the power supply. This arrangement, with the electrical connection portion 231 extending out of the heating element 1, facilitates the connection between the conductive heat sink 2 and the power supply, and prevents the connection structure between the power supply and the conductive heat sink 2 from obstructing airflow through the heat sink 22.

[0112] Specifically, the second conductive sheet 23 can extend along the first end 12 toward the second end 13, thereby extending beyond the second end 13 of the heating element 1 to form an electrical connection portion 231. The power supply can be electrically connected to the electrical connection portion 231 via a wire. The two second conductive sheets 23 on both sides of the heating element 1 respectively form electrical connection portions 231, thereby connecting the electrical connection portions 231 on both sides of the heating element 1 to the positive and negative terminals of the power supply, respectively, so that the power supply, the heating element 1, and the two conductive heat sinks 2 form a circuit.

[0113] Alternatively, the second conductive sheet 23 can extend along the second end 13 toward the first end 12, so that the second conductive sheet 23 extends beyond the first end 12 of the heating element 1 to form an electrical connection portion 231.

[0114] Reference Figure 9 and Figure 10 As shown in the figure, this application embodiment also provides a bathroom heater, including a housing, a fan 4 and a heating device as described in any of the above claims; the housing is provided with an air inlet 34 and an air outlet 35, the fan 4 and the heating device are disposed inside the housing, the heating device is located between the fan 4 and the air outlet 35, and the shape of the heating device is adapted to the shape of the air outlet 35.

[0115] Specifically, an air guide channel 7 is formed inside the housing. The housing is provided with an air inlet 34 and an air outlet 35 that communicate with the air guide channel 7. A fan 4 is installed inside the air guide channel 7. The fan 4 is used to drive the air to move in the air guide channel 7 along the air inlet 34 toward the air outlet 35. A heating device is installed between the fan 4 and the air outlet 35. The air is discharged from the housing through the heating device and the air outlet 35.

[0116] The aforementioned fan includes a wind turbine 41 and a motor 42. The drive end of the motor 42 is connected to the wind turbine 41, so that after the motor 42 starts, it drives the wind turbine 41 to rotate, and the rotation of the wind turbine 41 drives the airflow.

[0117] The aforementioned housing may include a box body 31, a cover plate 32, and an outer panel 33. The box body 31 has an internal mounting cavity, and the box body 31 has an opening communicating with the mounting cavity. The cover plate 32 is installed on the opening, and the outer panel 33 is installed on the box body 31, with the outer panel 33 located on the side of the cover plate 32 facing away from the mounting cavity. An air inlet 34 and an air outlet 35 are provided on the outer panel 33. An air guide channel 7 is formed in the mounting cavity. The cover plate 32 has a first through hole 321 and a second through hole 322 communicating with the air guide channel 7. The first through hole 321 is opposite to the air inlet 34, and the second through hole 322 is opposite to the air outlet 35. The heating device is connected to the cover plate 32 and is located in the second through hole 322.

[0118] The aforementioned housing may optionally include an air guide seat 5. An air guide seat 5 is installed on the inner wall of the housing 31 opposite to the cover plate 32. The air guide seat 5 is located between the fan 4 and the second through hole 322. A side plate is provided on the edge of the air guide seat 5 facing the cover plate 32. The side plate is arranged around the second through hole 322 and abuts against the cover plate 32. A notch is provided on the side of the side plate facing the fan 4. The heating device is installed on the side of the air guide seat 5 facing the cover plate 32 via a bracket 51.

[0119] The cover 32 is connected to a grille 61 on the side facing the outer panel 33, and a protective cover 62 is connected to the side facing the housing 31. Both the protective cover 62 and the grille 61 cover the second through hole 322, and the protective cover 62 covers the heating device.

[0120] In practical use, the heating device and bathroom heater provided in this application embodiment are mounted on the air guide seat 5 via the bracket 51. When the air outlet 35 is fan-shaped and the central angle of the air outlet 35 is small, by connecting appropriately sized fan-shaped or near-fan-shaped conductive heat sinks 2 to both sides of the heating element 1, a heating block group can form a fan-shaped structure, thereby enabling a heating block group to adapt to the fan-shaped air outlet 35. When the central angle of the air outlet 35 is large, an appropriate number of fan-shaped or near-fan-shaped heating block groups are arranged along the circumferential direction, and the second conductive sheet 23 of two adjacent conductive heat sinks 2 is shared, so that the two conductive heat sinks 2 are interconnected, and multiple heating block groups form a fan-shaped heating structure, so that the shape and size of the heating device are adapted to the fan-shaped air outlet 35.

[0121] When the air outlet 35 is circular, multiple fan-shaped or near-fan-shaped heating blocks are arranged along the circumference. The multiple heating blocks are connected to each other, and the heating blocks at the head and tail are connected to each other, thus forming a circular heating structure, so that the circular heating device can be adapted to the shape and size of the air outlet 35.

[0122] When the air outlet 35 is a fan-shaped ring and the central angle of the air outlet 35 is small, by connecting appropriately sized fan-shaped or near-fan-shaped conductive heat sinks 2 to both sides of the heating element 1, a heating block group can form a fan-shaped ring structure, thus enabling the heating block group to fit the fan-shaped air outlet 35. When the central angle of the air outlet 35 is large, an appropriate number of fan-shaped or near-fan-shaped heating block groups are arranged along the circumferential direction, and the second conductive plates 23 of two adjacent conductive heat sinks 2 are shared, so that the two conductive heat sinks 2 are connected to each other, and the head and tail of multiple heating block groups are spaced apart to form a fan-shaped heating structure, thereby adapting the shape and size of the heating device to the air outlet 35.

[0123] When the air outlet 35 is annular, multiple fan-shaped or near-fan-shaped heating blocks are arranged along the circumference. The multiple heating blocks are connected to each other, and the heating blocks at the head and tail are connected to each other, thus forming an annular heating structure, so that the circular heating device can be adapted to the shape and size of the air outlet 35.

[0124] After the fan 4 is started, air enters the air guide channel 7 from the air inlet 34. The electrical connection part 231 of the conductive heat sink 2 on both sides of the heating element 1 is connected to the positive and negative terminals of the power supply, so that the current passes through multiple heating elements 1. The multiple heating elements 1 heat up, which raises the temperature of the first conductive sheet 21, the corrugated sheet and the second conductive sheet 23. After passing through the corrugated sheet of the heat sink 22, the air is blown out of the housing from the air outlet 35. When the air passes through the heat sink 22, it exchanges heat with the heat sink 22, which raises the temperature of the air. After the air temperature rises, it is blown out of the housing from the air outlet 35, which raises the temperature of the surrounding environment.

[0125] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0126] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heating device, characterized in that, It includes at least one heating block group, and when there are multiple heating block groups, the multiple heating block groups are spliced ​​together; The heating block assembly includes a heating element and conductive heat dissipation components located on both sides of the heating element. Along the direction from one end of the heating element to the other end, the width of at least a portion of the conductive heat dissipation components is not equal.

2. The heating device according to claim 1, characterized in that, Along the direction from one end of the heating element to the other end, the width of the conductive heat sink on both sides gradually decreases.

3. The heating device according to claim 2, characterized in that, The heating block group consists of multiple heating block groups, which are arranged sequentially along the circumference, and the first and last heating block groups are spliced ​​together to form a circular or annular heating structure. Alternatively, there may be multiple heating block groups, which are arranged sequentially along the circumferential direction, with the first and last heating block groups spaced apart from each other along the circumferential direction, to jointly construct a fan-shaped or fan-ring-shaped heating structure.

4. The heating device according to any one of claims 1 to 3, characterized in that, The conductive heat dissipation component includes a first conductive sheet, a heat dissipation sheet, and a second conductive sheet; The first conductive sheet is attached to the heating element, the second conductive sheet is disposed opposite to the first conductive sheet, the heat sink is connected between the first conductive sheet and the second conductive sheet, and the width of at least a portion of the heat sink is not equal along the direction from one end of the heating element to the other end.

5. The heating device according to claim 4, characterized in that, Along the direction from one end of the heating element to the other, the width of the heat sink gradually decreases, causing the first conductive sheet and the second conductive sheet on both sides to tilt and approach each other.

6. The heating device according to claim 4, characterized in that, When there are multiple heating blocks, there are two conductive heat dissipation elements between two adjacent heating elements. The two conductive heat dissipation elements share the same second conductive element, or the two conductive heat dissipation elements each have their own second conductive element.

7. The heating device according to claim 4, characterized in that, The heat sink is a corrugated sheet, which includes multiple connecting pieces. Along the direction from one end of the heat sink to the other end, the multiple connecting pieces are folded and connected in sequence, and the length of the multiple connecting pieces gradually decreases, so that the corrugated sheet as a whole is constructed into an isosceles triangular corrugated sheet or an isosceles trapezoidal corrugated sheet with a gradually decreasing width.

8. The heating device according to claim 7, characterized in that, The angle between the two sides of the isosceles triangle or isosceles trapezoid formed by the corrugated sheet is α, which is determined by the overall shape of the heating device and the number n of the heating block groups included. When the heating device is a structure formed by connecting multiple heating block groups end to end, α = 180° / n; When the heating device is a structure in which multiple heating block groups are connected in sequence and the first and last heating block groups are spaced apart, the corresponding central angle is β, and α = β / 2n.

9. The heating device according to claim 8, characterized in that, The width of the corrugated sheet in the direction from the first conductive sheet to the second conductive sheet is the tooth height, and the tooth height at a specified position on the corrugated sheet is determined by the following formula: Wherein, H is the tooth height at a specified position on the corrugated sheet, R is the distance between the specified position and the intersection of the extension lines of the first and second conductive sheets on both sides of the corrugated sheet, T1 is the thickness of the second conductive sheet, T2 is the thickness of the first conductive sheet, and T3 is the thickness of the heating element.

10. The heating device according to claim 7, characterized in that, Along the direction from one end of the heating element to the other, the spacing between any two adjacent connecting pieces may gradually increase, decrease, remain equal, or change irregularly.

11. The heating device according to claim 4, characterized in that, The second conductive sheet extends from one end of the heating element toward the other end, and the end of the second conductive sheet extending out of the heating element forms an electrical connection portion, which is used to connect to the positive or negative terminal of the power supply.

12. A bathroom heater, characterized in that, Includes a housing, a fan, and a heating device as described in any one of claims 1 to 11; The housing is provided with an air inlet and an air outlet. The fan and the heating device are disposed inside the housing. The heating device is located between the fan and the air outlet, and the shape of the heating device is adapted to the shape of the air outlet.

Images