Electric heater

Abstract

The utility model provides an electric heater which comprises a shell, a heating part, a fan and an electric driving assembly, and the shell is provided with a warm air outlet; the heating element is mounted at the warm air outlet; the draught fan comprises a draught fan shell and a wind wheel, the wind wheel is rotatably located in the draught fan shell, the draught fan shell is provided with an air inlet and a cold air outlet, the draught fan shell is rotatably connected to the shell, the draught fan shell is located at the first position, the cold air outlet is not communicated with the warm air outlet, and the wind wheel is used for driving external air to sequentially pass through the air inlet and the cold air outlet. When the fan shell is located at the second position, the cold air outlet communicates with the warm air outlet, and the wind wheel is used for driving external air to sequentially pass through the air inlet, the cold air outlet and the warm air outlet; the electric driving assembly is installed on the shell and connected to the fan shell in a transmission mode so as to drive the fan shell to rotate relative to the shell, and therefore the fan shell can be located at the first position or the second position. According to the electric heater, the position of the fan shell can be automatically adjusted, and the use convenience is improved.

Description

Technical Field

[0001] This application relates to the technical field of household appliances, and particularly to an electric heater. Background Art

[0002] A heating and cooling electric heater can generate cold air or hot air. It is a household appliance that combines heating and cooling functions, and can meet the needs of different seasons. It can not only provide warmth in the cold winter, but also bring coolness in the hot summer.

[0003] However, the existing heating and cooling combined electric heaters usually require users to manually switch between the cold air or hot air functions, and this operation method is relatively cumbersome, bringing inconvenience to users. Summary of the Utility Model

[0004] This application provides an electric heater to solve the technical problem that the existing heating and cooling electric heaters require users to manually switch between the cold air or hot air functions, resulting in a relatively cumbersome operation method.

[0005] In a first aspect, this application provides an electric heater, including:

[0006] A housing, which is provided with a warm air outlet.

[0007] A heating element, which is installed at the warm air outlet.

[0008] A fan, which includes a fan housing and a wind wheel. The wind wheel is rotatably located inside the fan housing. The fan housing is provided with an air inlet and a cold air outlet. The fan housing is rotatably connected to the housing. The fan housing can be selectively in a first position and a second position. When the fan housing is in the first position, the cold air outlet is not communicated with the warm air outlet, and the wind wheel is used to drive external air to sequentially pass through the air inlet and the cold air outlet. When the fan housing is in the second position, the cold air outlet is communicated with the warm air outlet, and the wind wheel is used to drive external air to sequentially pass through the air inlet, the cold air outlet and the warm air outlet; and

[0009] An electric drive assembly, which is installed on the housing and is drivingly connected to the fan housing to drive the fan housing to rotate relative to the housing, so that the fan housing is in the first position or the second position.

[0010] A further technical solution of it is that the electric drive assembly includes a first motor, a first gear and a second gear. The first motor is installed on the housing. The first motor has a transmission shaft, and the transmission shaft is connected to the first gear. The second gear is connected to the fan housing, and the first gear is meshed with the second gear to drive the fan housing to rotate.

[0011] A further technical solution of it is that the first gear is provided with a non-circular limiting hole, and the transmission shaft passes through the non-circular limiting hole and is adapted to the non-circular limiting hole.

[0012] A further technical solution thereof is that the electric heater further includes a controller, and the first motor, the heating element, and the controller are arranged in sequence along the length direction of the housing.

[0013] A further technical solution thereof is that one of the blower housing and the housing is provided with an abutting member, and the other of the blower housing and the housing is provided with a microswitch. When the blower housing is in the first position, the abutting member is separated from the microswitch. When the blower housing is in the second position, the abutting member is in contact with the microswitch, and the microswitch is used to control the operation of the heating element.

[0014] A further technical solution thereof is that the microswitch includes a microswitch body, a first conductive sheet, and a second conductive sheet. Both the first conductive sheet and the second conductive sheet are electrically connected to the microswitch body. When the blower housing is in the first position, the first conductive sheet and the second conductive sheet are opposite and spaced apart. When the blower housing is in the second position, the abutting member pushes the first conductive sheet into contact with the second conductive sheet, and the microswitch body is used to control the operation of the heating element.

[0015] A further technical solution thereof is that the microswitch is located in the housing.

[0016] A further technical solution thereof is that the air inlet, the cold air outlet, and the warm air outlet all extend along the length direction of the wind wheel.

[0017] A further technical solution thereof is that the housing is provided with a first placement plane and a second placement plane, and the second placement plane is connected and perpendicular to the first placement plane; the air inlet, the cold air outlet, and the warm air outlet are not located on the first placement plane or the second placement plane.

[0018] A further technical solution thereof is that the electric heater further includes a bracket and a second motor. The bracket and the second motor are installed in the blower housing. The bracket is connected to the blower housing. The bracket is provided with a motor limiting space, and the second motor is located in the motor limiting space. The second motor is used to drive the wind wheel to rotate.

[0019] The beneficial effect of the present application is that: different from the prior art, the electric heater of the present application includes a housing, a heating element, a blower, and an electric drive assembly. The electric drive assembly is drivably connected to the blower housing and can electrically drive the blower housing to rotate relative to the housing. When the electric heater needs to generate cold air, the electric drive assembly drives the blower housing to be in the first position. When the electric heater needs to generate warm air, the electric drive assembly drives the blower housing to be in the second position. In this way, the user does not need to manually adjust the position of the blower housing, but can make the electric drive assembly automatically drive the position adjustment of the blower housing through a simple operation (such as a button or a remote control), realizing the switching between cold air and hot air, thereby improving the convenience of using the electric heater.

[0020] Moreover, the electric drive assembly can provide more precise control to ensure that the fan housing is accurately positioned at the required location, enabling smooth switching between cold air and hot air, avoiding position deviations that may be caused by manual operation, thereby reducing potential safety hazards resulting from incorrect operation or improper use, and enhancing the safety of using the electric heater.

[0021] In addition, when the electric heater needs to generate cold air, the cold air outlet is not connected to the warm air outlet, allowing the wind wheel to drive external air to pass through the air inlet and the cold air outlet in sequence, so that the heating element no longer obstructs the cold air, and further enabling the fan to provide a greater air volume and air speed to improve the air outlet efficiency of the electric heater, ensuring rapid indoor cooling in hot seasons and enhancing user comfort; when the electric heater needs to generate warm air, the fan housing can be in the second position, and the cold air outlet is connected to the warm air outlet, enabling the wind wheel to drive external air to pass through the air inlet, the cold air outlet, and the warm air outlet in sequence. The heating element can heat the air flowing out of the cold air outlet and discharge the heated air from the warm air outlet to achieve the warm air effect of the electric heater. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0023] Figure 1 It is an assembled schematic diagram of the electric heater provided by the present application in the first placement plane;

[0024] Figure 2 It is an assembled schematic diagram of the electric heater provided by the present application in the second placement plane;

[0025] Figure 3 It is an exploded schematic diagram of an embodiment of the electric heater provided by the present application;

[0026] Figure 4 It is a structural schematic diagram of the first motor and the first gear provided by the present application;

[0027] Figure 5 It is a partial exploded schematic diagram of an embodiment of the electric heater provided by the present application;

[0028] Figure 6 It is a structural schematic diagram of the cooperation between the first gear and the second gear provided by the present application;

[0029] Figure 7 It is a schematic diagram of an embodiment in which the second air outlet of the electric heater provided by the present application is connected to the warm air outlet;

[0030] Figure 8 Schematic diagram of an embodiment in which the second air outlet in the electric heater provided in this application communicates with the cold air outlet;

[0031] Figure 9 Schematic diagram of another embodiment in which the second air outlet in the electric heater provided in this application communicates with the cold air outlet;

[0032] Figure 10 Exploded schematic diagram of an embodiment in which the abutting member in the electric heater provided in this application contacts the microswitch body.

[0033] Explanation of the reference numerals in the drawings: Electric heater 10, housing 100, warm air outlet 110, heating element 200, fan 300, fan housing 310, air inlet 311, cold air outlet 312, abutting member 313, microswitch 314, microswitch body 3141, first conductive sheet 3142, second conductive sheet 3143, impeller 320, electric drive assembly 400, first motor 410, transmission shaft 411, first gear 420, non-circular limiting hole 421, second gear 430, controller 500, bracket 600, motor limiting space 610, second motor 700, first placement plane 810, second placement plane 820. Detailed implementation manners

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts shall fall within the scope of protection of this application.

[0035] The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0036] The embodiments of the present invention provide an electric heater that can generate warm air or cold air, enabling the electric heater to meet the needs of different seasons.

[0037] As Figures 1 - 10As shown, the electric heater 10 includes a housing 100, a heating element 200, a blower 300, and the housing 100 is provided with a warm air outlet 110. The heating element 200 is installed at the warm air outlet 110. The blower 300 includes a blower housing 310 and an impeller 320. The impeller 320 is rotatably located within the blower housing 310. The blower housing 310 is provided with an air inlet 311 and a cold air outlet 312. The blower housing 310 is rotatably connected to the housing 100. The blower housing 310 can selectively be in a first position and a second position. When the blower housing 310 is in the first position, the cold air outlet 312 is not in communication with the warm air outlet 110, and the impeller 320 is used to drive external air to sequentially pass through the air inlet 311 and the cold air outlet 312. When the blower housing 310 is in the second position, the cold air outlet 312 is in communication with the warm air outlet 110, and the impeller 320 is used to drive external air to sequentially pass through the air inlet 311, the cold air outlet 312, and the warm air outlet 110.

[0038] Thus, when the electric heater 10 needs to generate cold air, the blower housing 310 can be in the first position, and the cold air outlet 312 is not in communication with the warm air outlet 110, so that the impeller 320 can drive external air to sequentially pass through the air inlet 311 and the cold air outlet 312, thereby preventing the heating element 200 from blocking the cold air, and further enabling the blower 300 to provide a greater air volume and air speed to improve the air outlet efficiency of the electric heater 10, ensuring rapid indoor cooling in hot seasons and enhancing user comfort.

[0039] When the electric heater 10 needs to generate warm air, the blower housing 310 can be in the second position, and the cold air outlet 312 is in communication with the warm air outlet 110, so that the impeller 320 can drive external air to sequentially pass through the air inlet 311, the cold air outlet 312, and the warm air outlet 110. The heating element 200 can heat the air flowing out of the cold air outlet 312 and discharge the heated air from the warm air outlet 110 to enable the electric heater 10 to achieve a warm air effect.

[0040] In addition, since an electric drive assembly 400 is provided in the electric heater, the user does not need to manually adjust the position of the blower housing. Instead, through simple operations (such as buttons or a remote control), the electric drive assembly 400 can automatically drive the adjustment of the position of the blower housing to achieve the switching between cold air and hot air, thereby improving the convenience of using the electric heater.

[0041] Moreover, the electric drive assembly 400 can provide more precise control to ensure that the blower housing is accurately positioned at the required position, thereby achieving a smooth switching between cold air and hot air, avoiding position deviations that may be caused by manual operations, and further reducing potential safety hazards caused by incorrect operations or improper use, enhancing the safety of using the electric heater.

[0042] Refer toFigures 3 - 6 , in some embodiments, the electric drive assembly 400 includes a first motor 410, a first gear 420 and a second gear 430. The first motor 410 is mounted on the housing 100. The first motor 410 has a transmission shaft 411. The transmission shaft 411 is connected to the first gear 420. The second gear 430 is connected to the blower housing 310. The first gear 420 is meshed with the second gear 430 to drive the blower housing 310 to rotate.

[0043] Refer to Figure 4 , in some embodiments, the first gear 420 is provided with a non-circular limiting hole 421. The transmission shaft 411 passes through the non-circular limiting hole 421 and is adapted to the non-circular limiting hole 421.

[0044] In some embodiments, the shape of the non-circular limiting hole 421 can be an ellipse, a rectangle, a polygon or other non-circular geometric shapes.

[0045] In this way, the slipping phenomenon between the transmission shaft 411 of the first motor 410 and the first gear 420 can be effectively avoided, the wear between the transmission shaft 411 and the first gear 420 can be reduced, and it helps to extend the service life of the first motor 410 and the first gear 420.

[0046] In some embodiments, the electric heater further includes a controller 500. The first motor 410, the heating element 200 and the controller 500 are arranged in sequence along the length direction of the housing 100.

[0047] Wherein, the controller 500 can be electrically connected to the first motor 410 and the heating element 200 through wires or cables to realize the start and stop of the first motor 410 and the control of the heating and cooling functions of the heating element 200.

[0048] In some embodiments, the controller 500 can also be equipped with an operation panel or a touch screen, which is convenient for users to control parameters such as the working mode and temperature setting of the electric heater 10 through a simple operation interface.

[0049] By arranging the first motor 410, the heating element 200 and the controller 500 in sequence along the length direction of the housing 100, the structure of the electric heater 10 is made more compact, which helps to reduce the overall volume of the electric heater.

[0050] Refer to Figures 1 - 10, in some embodiments, one of the blower housing 310 and the housing 100 is provided with a contact member 313, and the other of the blower housing 310 and the housing 100 is provided with a microswitch 314. When the blower housing 310 is in the first position, the contact member 313 is separated from the microswitch 314. When the blower housing 310 is in the second position, the contact member 313 contacts the microswitch 314, and the microswitch 314 is used to control the heating element 200 to operate.

[0051] Exemplarily, the blower housing 310 may be provided with the contact member 313, then the housing 100 may be provided with the microswitch 314; or, the housing 100 is provided with the contact member 313, then the blower housing 310 may be provided with the microswitch 314.

[0052] Preferably, in order to make the internal structure of the electric heater more compact, in some embodiments, the microswitch 314 is located in the housing 100.

[0053] Refer to Figure 10 , in some embodiments, the microswitch 314 includes a microswitch body 3141, a first conductive sheet 3142 and a second conductive sheet 3143. The first conductive sheet 3142 and the second conductive sheet 3143 are both electrically connected to the microswitch body 3141. When the blower housing 310 is in the first position, the first conductive sheet 3142 and the second conductive sheet 3143 are opposite and spaced apart. When the blower housing 310 is in the second position, the contact member 313 pushes the first conductive sheet 3142 into contact with the second conductive sheet 3143, and the microswitch body 3141 is used to control the heating element 200 to operate.

[0054] Wherein, the second position may be a vertically downward position, that is, when the electric drive assembly 400 automatically drives the blower housing 310 to rotate until the cold air outlet 312 is just directly facing the accommodation cavity of the housing, the contact member 313 pushes the first conductive sheet 3142 into contact with the second conductive sheet 3143, triggering the microswitch 314 to conduct, and controlling the heating element 200 to operate.

[0055] And since the cold air outlet 312 is just directly facing the accommodation cavity of the housing 100 and is communicated with the warm air outlet 110, therefore, the heating element 200 can heat the air flowing out of the cold air outlet 312 and flow the heated air out of the warm air outlet 110, so that the electric heater 10 realizes the warm air effect.

[0056] In other embodiments, the blower housing 310 may be provided with a rotating end cover, and the rotating end cover may be provided with a protrusion. When the blower housing 310 rotates to the vertically downward position, that is, the second position, the protrusion on the rotating end cover can trigger the microswitch 314 to conduct, so as to control the heating element 200 to operate.

[0057] In this way, when the electric drive component 400 automatically drives the blower housing 310 to rotate to different positions, the contact and separation between the abutting member 313 and the microswitch 314 can be achieved, so that the start and stop of the heating element 200 can be automatically controlled, thus realizing intelligent operation. Users do not need to manually switch additionally, improving the convenience of using the electric heater 10. Moreover, the automatic control mechanism of the microswitch 314 can ensure that the heating element 200 starts only when needed, avoiding continuous heating caused by misoperation or forgetting to turn off, thereby avoiding waste of energy and improving the energy efficiency ratio and use safety of the electric heater 10.

[0058] In some embodiments, the air inlet 311, the cold air outlet 312, and the warm air outlet 110 all extend along the length direction of the impeller 320.

[0059] By arranging the air inlet 311, the cold air outlet 312, and the warm air outlet 110 along the length direction of the impeller 320, while maintaining efficient heat exchange or air supply, the compactness of the product design can be achieved, which is beneficial to reducing the volume of the electric heater 10 and saving space.

[0060] As Figure 1 and Figure 2 shown, in some embodiments, the housing 100 is provided with a first placement plane 810 and a second placement plane 820, and the second placement plane 820 is connected to and perpendicular to the first placement plane 810; the air inlet 311, the cold air outlet 312, and the warm air outlet 110 are not located on the first placement plane 810 or the second placement plane 820.

[0061] By setting two mutually perpendicular placement planes, the electric heater 10 can be freely changed to a vertical or horizontal placement according to the actual use scenario and user preference, thereby expanding the applicable range of the electric heater 10. Whether it is a narrow desktop, beside a crowded bookshelf, or a spacious ground or wall-mounted position, it can be easily adapted to meet the diverse living space layouts.

[0062] In some embodiments, the electric heater 10 further includes a bracket 600 and a second motor 700. The bracket 600 and the second motor 700 are installed in the blower housing 310. The bracket 600 is connected to the blower housing 310. The bracket 600 is provided with a motor limiting space 610. The second motor 700 is located in the motor limiting space 610, and the second motor 700 is used to drive the impeller 320 to rotate.

[0063] In this way, the shape of the motor limiting space 610 is adapted to the second motor 700, thereby limiting the second motor 700. Moreover, the bracket 600 and the second motor 700 are installed in the blower housing 310, which can make the structure of the electric heater 10 more compact.

[0064] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0065] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly dictates otherwise, the singular forms "a", "an", and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing", and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof.

[0066] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. An electric heater, characterized in that, Comprising: A housing provided with a warm air outlet. A heating element installed at the warm air outlet. A blower including a blower housing and a wind wheel. The wind wheel is rotatably located within the blower housing. The blower housing is provided with an air inlet and a cold air outlet. The blower housing is rotatably connected to the housing. The blower housing can selectively be in a first position and a second position. When the blower housing is in the first position, the cold air outlet is not communicated with the warm air outlet. The wind wheel is used to drive external air to sequentially pass through the air inlet and the cold air outlet. When the blower housing is in the second position, the cold air outlet is communicated with the warm air outlet. The wind wheel is used to drive external air to sequentially pass through the air inlet, the cold air outlet, and the warm air outlet. And An electric drive assembly installed on the housing. The electric drive assembly is drivingly connected to the blower housing to drive the blower housing to rotate relative to the housing, so that the blower housing is in the first position or the second position.

2. The electric heater according to claim 1, characterized in that, The electric drive assembly includes a first motor, a first gear, and a second gear. The first motor is installed on the housing. The first motor has a transmission shaft. The transmission shaft is connected to the first gear. The second gear is connected to the blower housing. The first gear is meshed with the second gear to drive the blower housing to rotate.

3. The electric heater according to claim 2, wherein, The first gear is provided with a non-circular limiting hole. The transmission shaft passes through the non-circular limiting hole and is adapted to the non-circular limiting hole.

4. The electric heater according to claim 2, characterized in that, The electric heater further includes a controller. The first motor, the heating element, and the controller are sequentially arranged along the length direction of the housing.

5. The electric heater according to any one of claims 1 to 4, characterized in that, One of the blower housing and the housing is provided with a contact member, and the other of the blower housing and the housing is provided with a microswitch. When the blower housing is in the first position, the contact member is separated from the microswitch. When the blower housing is in the second position, the contact member contacts the microswitch. The microswitch is used to control the operation of the heating element.

6. The electric heater according to claim 5, characterized in that, The microswitch includes a microswitch body, a first conductive sheet, and a second conductive sheet. The first conductive sheet and the second conductive sheet are both electrically connected to the microswitch body. When the blower housing is in the first position, the first conductive sheet and the second conductive sheet are opposite and spaced apart. When the blower housing is in the second position, the contact member pushes the first conductive sheet into contact with the second conductive sheet. The microswitch body is used to control the operation of the heating element.

7. The electric heater according to claim 5, characterized in that, The microswitch is located on the housing.

8. The electric heater according to any one of claims 1 to 4, characterized in that, The air inlet, the cold air outlet, and the warm air outlet all extend along the length direction of the wind wheel.

9. The electric heater according to any one of claims 1 to 4, characterized in that, The housing is provided with a first placement plane and a second placement plane. The second placement plane is connected and perpendicular to the first placement plane. The air inlet, the cold air outlet, and the warm air outlet are not located on the first placement plane or the second placement plane.

10. The electric heater according to any one of claims 1 to 4, characterized in that, The electric heater further includes a bracket and a second motor. The bracket and the second motor are installed in the blower housing. The bracket is connected to the blower housing. The bracket is provided with a motor limiting space, and the second motor is located in the motor limiting space. The second motor is used to drive the wind wheel to rotate.

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