Warmer

Abstract

The application discloses a warmer and belongs to the field of heating equipment. The warmer solves the problems of the existing warmers, such as difficult production and processing, high manufacturing cost, single modeling and the like. The warmer comprises a machine body, a heating device arranged on the machine body and a control module electrically connected with the heating device. The heating device comprises at least two heating modules. The at least two heating modules form a ring structure. The heating module has an airflow channel. When airflow passes through the airflow channel, the airflow is heated by the heating module to form hot air. The control module controls part of the heating modules in the heating device to heat or controls all the heating modules in the heating device to heat synchronously.

Description

[0001] The present application relates to the field of heating equipment, in particular to a warmer.

[0002] Warmers are mostly used for heating indoor space in a family, such as a wind-heating bath heater arranged in a ceiling or wall of a bathroom. Unlike traditional lamp-heating bath heaters, the wind-heating bath heater sucks air through a fan, heats the air through a built-in heating component to form hot air, and circulates the hot air to heat the bathroom space, which is comfortable and safer. The utility model with the publication number "CN209445474U" and the name "360° omnidirectional warmer" uses a ring-shaped electric heater to heat air to form hot air. The ring-shaped electric heater is a whole structure, which has problems such as difficult production and processing, high manufacturing cost, and single modeling.

[0003] The purpose of the present application is to provide a warmer that can at least partially solve the above-mentioned technical problems.

[0004] To solve the above technical problems, the present application adopts the following technical solutions:

[0005] The warmer includes a body, a heating device arranged on the body, and a control module electrically connected to the heating device. The heating device includes at least two heating modules, the at least two heating modules form a ring structure, the heating module has an airflow passage, and the airflow is heated by the heating module to form hot air when passing through the airflow passage. The control module controls part of the heating modules in the heating device to heat or controls all the heating modules in the heating device to heat synchronously.

[0006] In the above-mentioned warmer, the heating device includes at least two parallelly connected heating modules, and each heating module includes at least one heating module.

[0007] In the above-mentioned warmer, at least one heating module includes at least two heating modules, and the at least two heating modules are alternately and spacedly distributed in the circumferential direction of the ring structure with the heating modules in other heating modules.

[0008] In the above-mentioned warmer, the central angle of the adjacent two heating modules in the same heating module relative to the center of the ring structure is less than or equal to 90°.

[0009] In the above-mentioned warmer, the number of heating modules of other heating modules spaced between the adjacent two heating modules in the same heating module is 1 to 3.

[0010] In the above-mentioned warmer, the at least two heating modules are connected in series.​​​

[0011] In the above heater, the heating device comprises at least two arc-shaped heating modules.

[0012] Alternatively, the heating device comprises at least three straight strip-shaped heating modules.

[0013] Alternatively, the heating device comprises at least one straight strip-shaped heating module and at least one arc-shaped heating module.

[0014] In the above heater, the ring structure is one of a circular ring structure, an elliptical ring structure and a polygonal ring structure.

[0015] In the above heater, a gap is reserved between two adjacent heating modules, and the end of the heating module leads a terminal into the gap.

[0016] In the above heater, the terminals of all the heating modules are arranged in the same direction in the circumferential direction of the ring structure.

[0017] In the above heater, all the heating modules are arranged in the same length.

[0018] In the above heater, the heating module is a PTC heating module, which comprises a PTC heating body and a heat conductor in contact with the PTC heating body, and the airflow passage is formed on the heat conductor.

[0019] Alternatively, the heating module is an electromagnetic heating module, which comprises an induction coil and a metal body capable of generating induction heating under the electrified state of the induction coil, and the airflow passage is formed on the metal body.

[0020] In the above heater, the body has a ring-shaped air outlet, an air duct communicating with the ring-shaped air outlet and a fan for introducing airflow into the air duct, and the airflow generated by the action of the fan is blown out from the ring-shaped air outlet after being heated by the heating device.

[0021] In the above heater, the region of the air duct close to the ring-shaped air outlet forms a ring-shaped air duct, and the heating device is at least partially fitted in the ring-shaped air duct.

[0022] In the above heater, the ring structure surrounded by the at least two heating modules is adapted to the shape of the ring-shaped air outlet.

[0023] The beneficial effects of the present application are as follows:

[0024] In the warmer provided in the application, the heating device adopts a segmented structure and comprises at least two heating modules, which form a ring structure. Compared with the existing integral ring-shaped electric heater, the volume of the heating module is smaller, facilitating production and processing, thereby reducing manufacturing cost.

[0025] With the segmented structure, different numbers and shapes of heating modules can be combined to form a heating device of various shapes according to product design requirements, which is not limited to the existing circular electric heater. On the premise of not deviating from the ring shape, the heating device modeling is enriched.

[0026] The heating modules are independent in structure. In use, when one heating module fails to work, the other heating modules can continue to work to maintain the basic heating function. In the process of product assembly and maintenance, the damaged or faulty heating module can be replaced alone, avoiding the high cost problem caused by the integral replacement of the existing integral electric heater.

[0027] Based on the segmented structure, the control module controls part of the heating modules in the heating device. Specifically, part of the heating modules can be independently controlled, thereby realizing multi-grade temperature adjustment of the warmer. This is different from the temperature grade adjustment mode of the existing warmer. The existing technology often adjusts the working power of the electric heater by controlling the PWM wave, thereby realizing multi-grade temperature output. The warmer of the application, based on the segmented structure of the heating device, controls the on-off of the circuit in which part of the heating modules are connected, thereby controlling the working of the part of the heating modules. By adjusting the number of heating modules that are turned on in the heating device, the output temperature of the warmer can be adjusted according to the change of indoor temperature / humidity and seasonal change. Furthermore, the control module can also control all the heating modules in the heating device to be heated synchronously, so that the warmer has more heating modes for users to choose from, thereby meeting the demand for temperature control in more scenarios.

[0028] Further, the heating device comprises at least two parallelly connected heating modules, each of which comprises at least one heating module. This is used to realize the control of the control module on part of the heating modules in the heating device, that is, to control the on-off of the parallel circuit in which the heating module is connected, thereby controlling the working of the heating module. By controlling the on-off of multiple parallel circuits, the number of heating modules that are turned on in the heating device can be adjusted, thereby realizing multi-grade temperature adjustment.

[0029] Further, at least one heating module includes at least two heating modules, and the at least two heating modules are alternately and spacedly arranged with the heating modules in other heating modules in the circumferential direction of the annular structure. The at least two heating modules of the present application form an annular structure, cooperate with the warmer to realize annular air outlet, and the annular air curtain formed thereby achieves the warming effect in a manner of surrounding the human body. The implementation of the present scheme makes the at least two heating modules in the same heating module not continuously distributed in the circumferential direction of the annular structure, thereby avoiding the problem of uneven distribution of cold and hot air in the annular air curtain.

[0030] Further, the central angle of the adjacent two heating modules in the same heating module relative to the center of the annular structure is less than or equal to 90°. The distribution structure of the at least two heating modules in the heating module in the circumferential direction of the annular structure is optimized. When the central angle of the adjacent two heating modules in the same heating module relative to the center of the annular structure is less than or equal to 90°, the cold and hot air in the annular air curtain is uniformly mixed, thereby forming the warm air that is comfortable in body feeling at the corresponding temperature level.

[0031] Further, the number of heating modules of other heating modules spaced between the adjacent two heating modules in the same heating module is 1 to 3. The distribution structure of the at least two heating modules in the heating module in the circumferential direction of the annular structure is optimized. When the number of heating modules of other heating modules spaced between the adjacent two heating modules in the same heating module is 1 to 3, the cold and hot air in the annular air curtain is uniformly mixed, thereby forming the warm air that is comfortable in body feeling at the corresponding temperature level.

[0032] Further, the at least two heating modules are connected in series. The synchronous heating control of the control module on all the heating modules in the heating device is realized.

[0033] Further, a gap is reserved between the adjacent two heating modules, and the end of the heating module leads out a terminal in the gap. The gap reserved between the adjacent two heating modules makes the terminal of the heating module lead out from the end of the heating module. The terminal is in the height range of the heating module, does not increase the thickness of the heating device, and avoids the interference between the terminal of the heating device and the air duct structure when the heating device is installed into the air duct.

[0034] Further, the terminals of all the heating modules are arranged in the same direction in the circumferential direction of the annular structure. The wiring of the heating device is neat and beautiful, and the problem of short circuit caused by the contact between the terminals of the adjacent heating modules is avoided.

[0035] Further, all the heating modules are arranged in the same length. All the heating modules in the heating device are manufactured in a unified length, thereby improving the production efficiency, reducing the production cost, bettering the compatibility of the heating modules, facilitating the assembly of the heating device, and making the appearance of the heating device beautiful.

[0036] Further, the heating module is a PTC heating module, which comprises a PTC heating body and a heat conductor in contact with the PTC heating body, and the airflow channel is formed on the heat conductor; the PTC heating module uses the PTC heating body as a heating source, and has the advantages of fast heating, no open flame and long service life.

[0037] Alternatively, the heating module is an electromagnetic heating module, which comprises an induction coil and a metal body capable of generating induction heating under the electrified state of the induction coil, and the airflow channel is formed on the metal body; the electromagnetic heating module uses electromagnetic induction heating, and has the advantages of high electric heating conversion efficiency and reduced power attenuation.

[0038] Further, the body has a ring-shaped air outlet, an air duct communicating with the ring-shaped air outlet, and a fan for introducing airflow into the air duct, and the airflow formed by the action of the fan is blown out from the ring-shaped air outlet after being heated by the heating device. The ring-shaped heating device cooperates with the ring-shaped air outlet to realize ring-shaped air outlet, and the ring-shaped air curtain formed thereby achieves the warming effect in a manner of surrounding the human body, thereby avoiding the discomfort caused by the direct blowing of the air outlet of the traditional warmer on the human body and improving the warming experience.

[0039] Further, the region of the air duct close to the ring-shaped air outlet forms a ring-shaped air duct, and the heating device is at least partially fitted in the ring-shaped air duct. Since the heating device has a ring-shaped structure as a whole, the cooperation between the heating device and the ring-shaped air duct makes the heating device have better installation stability, and only a small assembly gap exists between the heating device and the ring-shaped air duct, thereby ensuring that most of the airflow is heated by the airflow channel of the heating module and then blown outwards.

[0040] Further, the ring-shaped structure surrounded by the at least two heating modules is adapted to the shape of the ring-shaped air outlet. The ring-shaped air outlet is shaped to conform to the ring-shaped airflow blown out by the heating device, thereby reducing the air resistance and airflow noise and making the hot air smoothly blow out of the ring-shaped air outlet.

[0041] These features and advantages of the present application will be disclosed in detail in the following specific embodiments and drawings.

DRAWINGS

[0042] The present application will be further described below in conjunction with the drawings:

[0043] Figure 1 is a cross-sectional structure schematic diagram of a warmer in an embodiment of the present application;

[0044] Figure 2 is a three-dimensional structure schematic diagram of a heating device in an embodiment of the present application;

[0045] Figure 3 isFigure 2 a top view of the heating device shown in Fig. 1;

[0046] Figure 4 a top view of the heating device shown in Fig. 1; Figure 2 a top view of the heating device shown in Fig. 1;

[0047] Figure 5 a top view of the heating device shown in Fig. 1;

[0048] Figure 6 a top view of the heating device shown in Fig. 1; Figure 5 a top view of the heating device shown in Fig. 1;

[0049] Figure 7 a top view of the heating device shown in Fig. 1.

[0050] Reference signs:

[0051] 100 body, 110 face mask, 120 face mask frame, 130 volute, 140 inner support, 150 outer support, 160 air guide support, 161 annular air outlet, 170 air duct, 180 lateral air inlet;

[0052] 200 fan;

[0053] 300 heating device, 310 heating module, 311 terminal, 312 heat-conducting sheet, 313 fin, 314 heat-conducting body, 315 PTC heating body, 316 air flow channel, 320 mounting support, 330 gap.

DETAILED DESCRIPTION

[0054] The technical solutions of the embodiments of the present application are explained and described below in combination with the drawings of the embodiments of the present application. The following embodiments are only preferred embodiments of the present application, and are not all. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0055] The words such as "exemplary", "some embodiments" and the like appearing in the following text mean "as an example, embodiment or illustration", and any embodiment described as "exemplary" is not necessarily interpreted as superior or better than other embodiments. In order to better illustrate the present application, numerous specific details are given in the following specific embodiments, and those skilled in the art should understand that the present disclosure can also be implemented without some specific details.

[0056] Reference Figure 1In an embodiment of the present application, the heater comprises a body 100, the body 100 having a ring-shaped air outlet 161, an air duct 170 communicating with the ring-shaped air outlet 161, a fan 200 for introducing air flow into the air duct 170, and a heating device 300 for heating the air flow, the air flow heated by the heating device 300 being blown out from the ring-shaped air outlet 161; when the heater is installed in a suspended ceiling, the hot air blown out from the ring-shaped air outlet 161 forms a ring-shaped air curtain to surround the human body, thereby achieving the heating effect, avoiding the discomfort caused by the direct blowing of the air outlet of the traditional heater to the human body, and improving the heating experience.

[0057] As shown above, the heating device 300 of the embodiment comprises at least two heating modules, the at least two heating modules 310 forming a ring-shaped structure, the heating module 310 having an air flow passage 316, the air flow passing through the air flow passage 316 being heated by the heating module 310 to form hot air, and the control module controlling the heating of the partial heating modules in the heating device 300. In a specific implementation, the heating device 300 comprises at least two heating modules connected in parallel, each heating module comprising at least one heating module 310, the control module controlling the on-off of the parallel line in which the heating module is located, i.e. controlling the operation of the heating module, and controlling the on-off of the multiple parallel lines, thereby adjusting the number of heating modules in the heating device that are turned on, so as to realize multi-grade temperature adjustment.

[0058] As a preferred example of the above scheme: in combination with Figure 2 , 3 the heating device 300 comprises two heating modules connected in parallel, each heating module comprising four heating modules 310, each heating module 310 being provided with an air flow passage, for the convenience of description, the two heating modules are defined as heating module A and heating module B, the four heating modules 310 in the heating module A are defined as heating module A1, heating module A2, heating module A3, and heating module A4 in a clockwise direction, and the four heating modules in the heating module B are defined as heating module B1, heating module B2, heating module B3, and heating module B4 in a clockwise direction.

[0059] The eight heating modules 310 are straight bars with equal length, and the heating module A and the heating module B form a regular octagon ring structure. In the manufacturing process, the eight heating modules are manufactured with uniform length, which improves the production efficiency, reduces the production cost, and has better compatibility of the heating modules. The heating device 300 is easy to assemble and has an attractive appearance. More preferably, the eight heating modules 310 are further arranged to have equal width and equal height, and form eight heating modules with the same appearance structure. The width and thickness of the corresponding positions of each heating module 310 on the heating device 300 are consistent. It can be seen that, compared with the existing integral ring-shaped electric heater, the volume of each heating module is smaller, which is convenient for production and processing, thereby reducing the manufacturing cost.

[0060] For convenient electrical connection, each heating module 310 is provided with two wiring terminals 311. In the heating module A, one of the wiring terminals 311 of the heating module A1, the heating module A2, the heating module A3, and the heating module A4 is sequentially connected to the live wire. In the heating module B, one of the wiring terminals 311 of the heating module B1, the heating module B2, the heating module B3, and the heating module B4 is sequentially connected to the live wire. The other wiring terminals 311 of all the heating modules in the heating module A and the heating module B are sequentially connected to the zero line. In this way, the four heating modules in the heating module A are connected in series, the four heating modules in the heating module B are connected in series, and the heating module A and the heating module B are connected in parallel.

[0061] As described above, the control module of the warmer can be a switch for controlling the on-off of the control circuit. Since the heating module A and the heating module B are connected in parallel, a switch A is arranged on the parallel line where the heating module A is located, and a switch B is arranged on the parallel line where the heating module B is located. This makes the heating module A and the heating module B can be independently controlled, and thus the multi-grade temperature adjustment of the warmer can be realized. For example, closing the switch A or the switch B makes the heating module A or the heating module B work, and realizes one-grade temperature air supply. At the same time, closing the switch A and the switch B makes the heating module A and the heating module B work, and realizes two-grade temperature air supply. This is different from the temperature grade adjustment mode of the existing warmer. The existing technology usually controls the PWM wave to adjust the working power of the electric heater, and then realizes multi-grade temperature output. The warmer of the embodiment is based on the heating device 300 with a segmented structure. The on-off of the parallel line where the heating module is located is controlled, and thus the working of the heating module is controlled. The on-off of the multiple parallel lines is controlled, and thus the number of the heating modules that are turned on in the heating device 300 can be adjusted, thereby realizing the multi-grade temperature adjustment of the warmer.

[0062] In addition, the independent control of the heating module A and the heating module B can also be realized by a parallel connection mode. In the heating module A, one of the wiring terminals of the heating module A1, the heating module A2, the heating module A3 and the heating module A4 is sequentially connected in series and then connected to a live wire, and the other of the wiring terminals of the heating module A1, the heating module A2, the heating module A3 and the heating module A4 is sequentially connected in series and then connected to a neutral wire. In the heating module B, one of the wiring terminals of the heating module B1, the heating module B2, the heating module B3 and the heating module B4 is sequentially connected in series and then connected to a live wire, and the other of the wiring terminals of the heating module B1, the heating module B2, the heating module B3 and the heating module B4 is sequentially connected in series and then connected to a neutral wire. The four heating modules in the heating module A are connected in parallel, the four heating modules in the heating module B are connected in parallel, but the heating module A and the heating module B are still connected in parallel, and the independent control of the heating module A and the heating module B can also be realized by using the above control mode.

[0063] The switch includes but is not limited to a mechanical switch and a touch switch, and the switch can be arranged on an operation panel of the warmer or a mobile device, for example, when the warmer is provided with a wireless remote controller, the switch can also be arranged on the wireless remote controller.

[0064] According to the parallel connection mode, the switch A and the switch B are arranged to be simultaneously opened and closed, so that all the heating modules in the heating device can be controlled to be synchronously heated, and the warmer has more heating modes for the user to select.

[0065] In another embodiment of the present application, the warmer can also be provided with a temperature sensor, the temperature sensor collects indoor temperature, and a control module (for example, a main control chip) controls part of the heating modules in the heating device to heat or controls all the heating modules in the heating device to synchronously heat according to the collected indoor temperature, so that the indoor temperature can be maintained in a relatively comfortable range without manual operation, which brings convenience to the user and improves the user experience.

[0066] In order to facilitate wiring, a gap 330 is reserved between two adjacent heating modules 310, and the wiring terminal 311 of the heating module 310 is led out from the end of the heating module 310 to the gap 330. The wiring terminal 311 is within the height range of the heating module, and does not increase the thickness of the heating device 300, avoiding interference between the wiring terminal 311 of the heating device 300 and the air duct structure when the heating device 300 is installed into the air duct.

[0067] More preferably, the wiring terminals 311 of all the heating modules are arranged in the same direction in the circumferential direction of the annular structure, with reference to Figure 3The wiring terminals 311 of all the heating modules in the heating module A and the wiring terminals 311 of all the heating modules in the heating module B are led in the counterclockwise direction, so that the heating device 300 is neatly and beautifully wired, and the problem of short circuit caused by the contact of the wiring terminals 311 of adjacent heating modules is avoided.

[0068] In the implementation of the above-mentioned first temperature air supply, only one of the heating module A and the heating module B is turned on for heating. If the positions of the four heating modules turned on for heating on the heating device 300 are too concentrated, the corresponding area blows hot air, while the corresponding area of the other four non-working heating modules blows cold air, which is not conducive to the mixing of cold and hot air, and the human body will feel cold and hot air at the same time, resulting in discomfort. The present embodiment solves the above-mentioned problem by optimizing the distribution structure of the four heating modules in the heating module in the circumferential direction of the annular structure. Specifically, the four heating modules in the heating module A are alternately distributed with the four heating modules in the heating module B in the circumferential direction of the annular structure, as shown in Figure 3 The heating module B1 is arranged between the heating module A1 and the heating module A2, the heating module B2 is arranged between the heating module A2 and the heating module A3, and so on. In this way, all the heating modules in the heating module A and all the heating modules in the heating module B are not continuously distributed in the circumferential direction of the annular structure, avoiding the problem of uneven distribution of cold and hot air in the annular air curtain.

[0069] More preferably, the central angle of the adjacent two heating modules in the same heating module relative to the center of the annular structure is less than or equal to 90°, for example, referring to Figure 3 The heating module B1 is arranged between the heating module A1 and the heating module A2, the central angle of the heating module B1 relative to the center of the annular structure is 40°, the central angle of the gap (the maximum gap) between the heating module A1 and the heating module B1 relative to the center of the annular structure is 10°, according to the annular structure of the regular octagon shown in the present embodiment, and the eight heating modules are all straight strips of equal length, the gap between any two adjacent heating modules is basically the same. Therefore, the central angle a of the adjacent two heating modules in the heating module A relative to the center of the annular structure is 60°, and the central angle of the adjacent two heating modules in the heating module B relative to the center of the annular structure is also 60°, which is conducive to the uniform mixing of cold and hot air in the annular air curtain, forming a warm air that is comfortable to the human body at the corresponding temperature level. Of course, the above-mentioned example is only for explaining the scheme of the present embodiment, and in other embodiments, the central angle of the adjacent two heating modules in the heating module A and the heating module B relative to the center of the annular structure can also be 30°, 40°, 50°, 70°, 90°, etc. according to the actual structure of the heating device 300.

[0070] It should be noted that the heating module A and the heating module B of the embodiment form a regular octagonal ring structure, and the center of the ring structure is the center o of the circumscribed circle of the regular octagon. In other embodiments of the application, two or more heating modules can form other ring structures, such as a circle, an ellipse, a racetrack, and other polygons. When forming a circle, the center of the circle is the center of the ring structure. When forming an ellipse or a racetrack, the intersection of the two axes of symmetry of the ellipse or the racetrack is the center of the ring structure. When two or more heating modules form an elliptical, racetrack-shaped, or other similar shape ring structure, the distance between the two adjacent heating modules in the same heating module cannot be accurately determined by the central angle relative to the center of the ring structure. Therefore, the following scheme can also be used:

[0071] From Figure 3 It can be seen that the four heating modules in the heating module A are alternately distributed with the four heating modules in the heating module B in the circumferential direction of the ring structure. The number of heating modules in the heating module B arranged between the two adjacent heating modules in the heating module A is 1. Similarly, the number of heating modules in the heating module A arranged between the two adjacent heating modules in the heating module B is also 1. When the heating module A or the heating module B has a larger number of heating modules, the number of heating modules in the heating module B arranged between the two adjacent heating modules in the heating module A is not more than 3. Similarly, the number of heating modules in the heating module A arranged between the two adjacent heating modules in the heating module B is also not more than 3. For example, the heating module A has three heating modules, and the heating module B has six heating modules. According to the above arrangement scheme, the number of heating modules in the heating module B arranged between the two adjacent heating modules in the heating module A is 2.

[0072] Alternatively, in another embodiment of the application, a heating module C is added, the heating module A, the heating module B, and the heating module C are connected in parallel and each have three heating modules. According to the arrangement scheme of the above embodiment: the number of heating modules in the heating module B arranged between the two adjacent heating modules in the heating module A is 1, the number of heating modules in the heating module B arranged is 1, and the same is true for the heating module B and the heating module C.

[0073] In summary, when the number of heating modules in other heating modules arranged between the two adjacent heating modules in the same heating module is 1 to 3, it is beneficial to the uniform mixing of cold and hot air in the ring-shaped air curtain, and the formation of a warm air that is comfortable in terms of body feeling at a corresponding temperature level.

[0074] In combination with Figure 4The heating module in the embodiment is a PTC heating module, which comprises a PTC heating body 315 and a heat conductor 314 in contact with the PTC heating body 315, and an air flow channel 316 is formed on the heat conductor 314. Specifically, the PTC heating body 315 is a ceramic heating element, which has the advantages of fast temperature rise, no open flame, and long service life. The heat conductor 314 comprises two heat conducting sheets 312 and a plurality of fins 313 connected between the two heat conducting sheets 312, the plurality of fins 313 are arranged in a wave shape in the length direction of the heat conducting sheet 312, and adjacent two fins 313 and the corresponding heat conducting sheet 312 form an axial air flow channel 316. Here, the axial direction is the axial direction of the annular structure formed by the heating module. When the warmer is working, the air flow enters the air flow channel 316 from one side of the PTC heating module, exchanges heat with the heat conducting sheet 312 and the fin 313 in the air flow channel 316, and the air flow carrying heat blows out from the other side of the PTC heating module, thereby forming hot air. The PTC heating module is provided with two heat conductors 314, the PTC heating body 315 is arranged between the two heat conductors 314 and in contact with the two heat conductors 314, and the two heat conductors 314 are respectively provided with a terminal 311. The heat generated by the PTC heating body 315 can be transferred to the two heat conductors 314, thereby improving the heating efficiency and ventilation volume of the PTC heating module.

[0075] The structure of the heating device 300 is not limited to the above scheme, and in some other embodiments, the structure of the heating device 300 is as follows:

[0076] At least two heating modules can be configured with different numbers of heating modules, for example, the heating module A is configured with four heating modules, the heating module B is configured with two heating modules, and the two heating modules in the heating module A and the one heating module in the heating module B are alternately distributed in the circumferential direction of the annular structure. Considering that the heating module is a straight strip, at least three straight strip heating modules are needed to form an annular structure, for example, the heating device 300 is provided with three straight strip heating modules, and a triangular annular structure is formed.

[0077] The heating module is not limited to two, and three, four or more can be set, for example, the heating device is configured with four heating modules, and the two terminals of each heating module are connected to the live wire and the zero line, respectively, to form four parallel connected heating modules, that is, the heating device comprises four heating modules, each heating module comprises one heating module, and at least two temperature adjustment levels can be achieved.

[0078] Referring to Figure 1The warmer described in the embodiment is provided with a volute 130 in the body 100, a fan 200 is installed in the volute 130, a face mask 110 and a face mask frame 120 are arranged on one side of the body 100 (the warmer is installed in a ceiling type, and the body 100 is on the lower side), and a gap between the face mask 110 and the face mask frame 120 forms a lateral air inlet 180; corresponding through holes are arranged on the face mask 110 and the face mask frame 120, an outer support 150 is installed at the through holes, the outer support 150 is nested with an inner support 140, one end of the outer support 150 is connected to the volute 130 to form an air duct 170, the other end of the outer support 150 is connected to a wind guide support 160, and an annular air outlet 161 is arranged on the wind guide support 160. When the warmer works, the fan 200 operates to generate negative pressure, air flow is introduced into the air duct 170 from the lateral air inlet 180, and the air flow is heated by a heating device 300 when passing through the air flow channel of the heating device 300 to form hot air, and the hot air is blown out from the annular air outlet 161.

[0079] Preferably, the region of the air duct 170 close to the annular air outlet 161 is formed into an annular air duct by the outer support 150 and the inner support 140, and the heating device 300 is at least partially fitted in the annular air duct. Since the heating device 300 has a whole annular structure, the cooperation between the heating device 300 and the annular air duct makes the installation stability of the heating device 300 better, and only a small assembly gap exists between the heating device 300 and the outer support 150 and the inner support 140, so that most of the air flow is blown outwards after being heated by the air flow channel of the heating device 300. Of course, this is a preferred scheme, and in other embodiments of the present application, the heating device can also be installed at other positions of the air duct.

[0080] In combination with Figure 2 In actual assembly, the heating device 300 is provided with a mounting support 320, and the plurality of heating modules are positioned on the mounting support 320 to form an assembly, and then the assembly is installed on the annular air duct, so that the heating modules are fixed conveniently, and the complicated process caused by the independent installation of the plurality of heating modules in the air duct 170 is avoided.

[0081] More preferably, the annular structure surrounded by the at least two heating modules 310 is matched with the shape of the annular air outlet 161, for example, the at least two heating modules surround an elliptical ring structure, and the annular air outlet 161 is correspondingly arranged in an elliptical shape; the at least two heating modules surround a track-shaped structure, and the annular air outlet 161 is correspondingly arranged in a track shape. In this way, the shape of the annular air outlet 161 conforms to the annular air flow blown out by the heating device 300, the air resistance and air flow noise are reduced, and the hot air is smoothly blown out of the annular air outlet 161.

[0082] When the at least two heating modules surround a regular polygon ring structure, the more heating modules arranged, the closer the regular polygon ring structure to a circular shape, and in this case, a circular annular air outlet 161 can also be used to match the regular polygon ring structure.

[0083] The above describes one embodiment of the heater body structure. Other embodiments can be found in the utility model patent with announcement number "CN209165546U" entitled "360° surround air outlet multifunctional bathroom heater" and the utility model patent with announcement number "CN209445474U" entitled "360° all-round heater".

[0084] In one embodiment of the present invention, based on the heater described in the foregoing embodiments, the circuit connection method of at least two heating modules is changed, with at least two heating modules connected in series, to achieve synchronous heating control of all heating modules in the heating device by the control module. Based on the solution of this embodiment, the operating power of the heating device can be adjusted by controlling the PWM wave, thereby achieving multi-level temperature output.

[0085] In one embodiment of the present invention, the heater based on the foregoing embodiments includes an electromagnetic heating module, comprising an induction coil and a metal body capable of generating induction heating when the induction coil is energized, with an airflow channel formed on the metal body. The electromagnetic heating module utilizes electromagnetic induction for heating, offering advantages such as high electrothermal conversion efficiency and low power attenuation. For a detailed description of the structure, please refer to the utility model patent with publication number "CN212566323U" and title "Electromagnetic Heating Module and Heater".

[0086] Reference Figure 5 , 6 In one embodiment of the present invention, based on the heater described in the foregoing embodiments: all heating modules 310 are designed as arc-shaped structures with the same curvature, and eight heating modules 310 are arranged in a ring-shaped structure. Based on the arc-shaped structure of the heating modules 310, adjacent heating modules 310 can form smaller gaps or abut each other, reducing the airflow blind zone on the ring-shaped structure and making the airflow from the ring-shaped heating device 300 more uniform. Compared to the heating device composed of straight heating modules in the foregoing embodiments, this embodiment requires at least two arc-shaped heating modules 310 to form a ring-shaped structure, for example, two semi-circular or nearly semi-circular arc-shaped heating modules 310 are used to form a ring-shaped structure.

[0087] In one embodiment of the present invention, based on the heater described in the foregoing embodiments, the heating device 300 includes at least one straight heating module 310 and at least one arc-shaped heating module 310. By providing two shapes of heating modules 310, the heating device 300 can be designed with more shapes, such as... Figure 7As shown, the three arc-shaped heating modules 310 form a semicircle, and a straight strip-shaped heating module 310 cooperates with the three arc-shaped heating modules 310 to form a D-shaped ring structure. Of course, the three arc-shaped heating modules 310 can also be integrated into one semicircular heating module.

[0088] According to any one of the above embodiments, the heating device 300 adopts a segmented structure, and includes at least two heating modules connected in parallel, each of which includes at least one heating module 310. Compared with the existing integral annular electric heater, the volume of the heating module 310 is smaller, facilitating production and processing, thereby reducing manufacturing costs.

[0089] With the above segmented structure, different numbers and shapes of heating modules can be combined to form a heating device of various shapes according to product design requirements, and the heating device is not limited to the existing circular ring-shaped electric heater. Under the premise of not deviating from the annular shape, the heating device modeling is enriched.

[0090] The heating modules are independent in structure. In use, when one heating module or one heating module group fails to work, other heating modules or heating module groups can continue to work to maintain the basic heating function. In the process of assembling and repairing the product, the damaged or failed heating module can be replaced independently, thereby avoiding the high cost problem caused by the integral replacement of the existing integral electric heater.

[0091] Based on the segmented structure, the control module controls part of the heating modules in the heating device to heat. Specifically, part of the heating modules can be independently controlled, thereby realizing multi-grade temperature adjustment of the warmer. This is different from the temperature grade adjustment mode of the existing warmer. The existing technology often adjusts the working power of the electric heater by controlling the PWM wave, thereby realizing multi-grade temperature output. The warmer of the embodiment of the present application is based on the segmented heating device. The control module controls the on-off of the circuit of part of the heating modules, thereby controlling the working of the part of the heating modules. By adjusting the number of the heating modules that are turned on in the heating device, the output temperature of the warmer can be adjusted according to the indoor temperature / humidity change and seasonal change. Furthermore, the control module can also control all the heating modules in the heating device to heat synchronously, so that the warmer has more heating modes for the user to choose, thereby meeting the temperature control requirements in more scenarios.

[0092] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Those skilled in the art should understand that the present application includes but is not limited to the contents described in the above specific embodiments and the accompanying drawings. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. A heater, comprising a body, a heating device disposed on the body, and a control module electrically connected to the heating device, characterized in that, The heating device includes at least two heating modules arranged in a ring structure. Each heating module has an airflow channel. When the airflow passes through the airflow channel, it is heated by the heating module to form hot air. The control module controls some of the heating modules in the heating device to heat or controls all the heating modules in the heating device to heat synchronously. The heating device includes at least two heating modules connected in parallel, each heating module includes at least one heating module, and at least one heating module includes at least two heating modules. These at least two heating modules are alternately distributed with heating modules in other heating modules in the circumferential direction of the annular structure. The central angle between two adjacent heating modules in the same heating module and the center of the annular structure is less than or equal to 90°. Alternatively, the number of heating modules in other heating modules between two adjacent heating modules in the same heating module is 1 to 3. The machine body has an annular air outlet, an air duct connecting the annular air outlet, and a fan for introducing airflow into the air duct. The airflow generated by the fan is heated by the heating device and then blown out from the annular air outlet. The area of ​​the air duct near the annular air outlet forms an annular air duct, and the heating device is at least partially fitted within the annular air duct. The annular structure formed by the at least two heating modules is adapted to the shape of the annular air outlet.

2. The heater as described in claim 1, characterized in that, The at least two heating modules are connected in series.

3. The heater as described in claim 1, characterized in that, The heating device includes at least two arc-shaped heating modules; Alternatively, the heating device may include at least three straight heating modules; Alternatively, the heating device may include at least one straight heating module and at least one arc-shaped heating module.

4. The heater as described in claim 3, characterized in that, The ring structure is one of the following: circular ring structure, elliptical ring structure, or polygonal ring structure.

5. The heater as described in claim 1, characterized in that, A gap is reserved between two adjacent heating modules, and the end of the heating module leads out a terminal into the gap.

6. The heater as described in claim 5, characterized in that, All the wiring terminals of the heating modules are arranged in the same direction in the circumferential direction of the ring structure.

7. The heater as described in any one of claims 1 to 6, characterized in that, All heating modules are set to the same length.

8. The heater as described in any one of claims 1 to 6, characterized in that, The heating module is a PTC heating module, which includes a PTC heating element and a heat conductor in contact with the PTC heating element, and the airflow channel is formed on the heat conductor; Alternatively, the heating module may be an electromagnetic heating module, comprising an induction coil and a metal body capable of generating induction heating when the induction coil is energized, wherein the airflow channel is formed on the metal body.

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