Electric heater

Abstract

The utility model provides an electric heater which comprises a shell, a heating module, a laser detection module and a control module, the heating module is installed in the shell, and the heating module is used for heating air; the laser detection module can emit detection laser so that the laser detection module can detect the distance between the electric heater and an obstacle, and the angle formed by the detection laser emitted by the laser detection module and the placement plane of the electric heater ranges from 15 degrees to 60 degrees. The control module can control the heating power of the heating module according to the detection result of the laser detection module. Thus, compared with an electric heater in the prior art, the electric heater monitors the distance between the user and the electric heater in real time through the laser detection module, the power of the heating module is adjusted according to the distance, and the scalding risk caused by the fact that the user directly faces a high-temperature area for a long time can be avoided. Therefore, the comfort level of the user is improved, and the use safety is ensured.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to an electric heater. Background Art

[0002] Electric heaters are a common heating device that heats the surrounding air through built-in heating elements (such as heating tubes and resistance wires). The heated air transfers heat through convection or radiation, thereby raising the indoor temperature and providing a warm and comfortable environment for users.

[0003] During the use of the electric heater, the user needs to turn on the electric heater and adjust the heating power of the electric heater; after using the electric heater, the user needs to turn off the electric heater.

[0004] However, when users face and stay close to electric heaters for a long time to keep warm, the temperature of their faces and body parts will be too high, which may cause discomfort or even burns. Utility Model Content

[0005] The present application provides an electric heater to improve at least one of the above problems.

[0006] The present application provides an electric heater, which includes a shell, a heating module, a laser detection module and a control module. The heating module is installed in the shell and is used to heat the air; the laser detection module can emit a detection laser so that the laser detection module can detect the distance between the electric heater and the obstacle, and the angle between the detection laser emitted by the laser detection module and the placement plane of the electric heater is 15°-60°; the control module can control the heating power of the heating module according to the detection results of the laser detection module.

[0007] In some embodiments, the laser detection module includes a transmitter and a receiver, the transmitter is used to transmit the detection laser, and the receiver is used to receive the detection laser after being reflected by an obstacle; the control module is connected to the transmitter and the receiver.

[0008] In some embodiments, the laser detection module and the heating module are spaced apart.

[0009] In some embodiments, the control module includes a circuit board, which is located between the laser detection module and the heating module. The circuit board is connected to the shell. The circuit board and the shell together form an installation cavity. The laser detection module is located in the installation cavity and is connected to the circuit board.

[0010] In some embodiments, the shell is provided with a light guide hole connected to the installation cavity. The electric heater further includes a transparent cover connected to the shell and located at the light guide hole. The detection laser emitted by the laser detection module can pass through the transparent cover.

[0011] In some embodiments, the housing includes an outer shell and a base, the outer shell is rotatably connected to the base, and the heating module and the laser detection module are both installed in the outer shell.

[0012] In some embodiments, one of the housing and the base is provided with a receiving groove, and the other is provided with a rotating column, and the rotating column is rotatably located in the receiving groove.

[0013] In some embodiments, the housing includes a front shell and a rear shell that are connected to each other. The front shell and the rear shell together enclose a receiving space. The heating module is located in the receiving space. The rear shell has a handle.

[0014] In some embodiments, the handle portion is a groove, which is recessed from the rear shell toward the front shell. The groove has an opening, and the opening is located on a side of the rear shell facing away from the front shell.

[0015] In some embodiments, the heating module includes a plurality of heating tubes, which are arranged in sequence along the length direction of the shell, and each heating tube is arranged in sequence along the height direction of the shell.

[0016] In the electric heater provided in the embodiment of the present invention, the electric heater includes a shell, a heating module, a laser detection module and a control module. The heating module is installed in the shell and is used to heat the air. The laser detection module can emit a detection laser so that the laser detection module can detect the distance between the electric heater and the obstacle. The angle between the detection laser emitted by the laser detection module and the placement plane of the electric heater is 15°-60°. The control module can control the heating power of the heating module according to the detection result of the laser detection module. In this way, compared with the electric heater in the prior art, the electric heater of the present application monitors the distance between the user and the electric heater in real time through the laser detection module, and adjusts the power of the heating module according to the distance, which can avoid the risk of burns caused by the user facing the high temperature area for a long time. This not only improves the user's comfort, but also ensures the safety of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0020] Figure 1 A structural schematic diagram of an electric heater provided in an embodiment of the present utility model is shown.

[0021] Figure 2 Shown Figure 1 Schematic diagram of the exploded structure of the electric heater.

[0022] Figure 3 Shown Figure 1 Schematic diagram of part of the structure of the electric heater.

[0023] Figure 4 Shown Figure 1 A schematic diagram of another part of the structure of the electric heater.

[0024] Figure 5 Shown Figure 1 A structural diagram of the electric heater from another perspective.

[0025] Figure 6 Shown Figure 1 A schematic diagram of another part of the structure of the electric heater.

[0026] Figure 7 Shown Figure 1 Schematic diagram of the detection distance and power changes of the electric heater.

[0027] Description of reference numerals:

[0028] Electric heater 10, shell 100, installation cavity 101, light guide hole 102, accommodating space 103, heat dissipation inlet 104, heat dissipation outlet 105, outer shell 110, front shell 111, rear shell 112, handle 113, base 120, accommodating groove 130, rotating column 140, heating module 200, heating tube 210, laser detection module 300, control module 400, circuit board 410, transparent cover 500, reflective cover 600, and protective net 700. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0030] The disclosure below provides many different embodiments or examples for implementing different configurations of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely 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. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0031] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0032] See also Figures 1 to 7 The present invention provides an electric heater 10 comprising a housing 100, a heating module 200, a laser detection module 300, and a control module 400. The heating module 200 is mounted within the housing 100 and is used to heat the air. The laser detection module 300 is capable of emitting a detection laser to detect the distance between the electric heater 10 and an obstacle. The angle formed between the detection laser emitted by the laser detection module 300 and the placement plane of the electric heater 10 is 15°-60°. The control module 400 is capable of controlling the heating power of the heating module 200 based on the detection results of the laser detection module 300. Thus, compared to conventional electric heaters, the electric heater 10 of the present invention monitors the distance between the user and the electric heater 10 in real time through the laser detection module 300 and adjusts the power of the heating module 200 accordingly, thereby preventing the user from being exposed to high-temperature areas for extended periods of time. This improves user comfort and ensures safety.

[0033] When curtains, clothes and other items cover the electric heater 10, the laser detection module 300 can quickly detect the presence of obstacles and immediately reduce the heating power or turn off the electric heater 10 through the control module 400, thereby effectively preventing the risk of fire caused by high temperature and improving the overall safety of the product.

[0034] Furthermore, the high-precision ranging function of the laser detection module 300 enables the electric heater 10 to more accurately respond to user needs, providing a more intelligent and personalized heating experience. Users no longer need to make frequent manual adjustments, which improves ease of use and satisfaction.

[0035] Furthermore, the laser detection module 300 is designed with an angle range of 15°-60°, enabling it to effectively sense obstacles of varying heights ahead. For example, regardless of whether the user is standing, sitting, or squatting, effective protection is provided. This design increases the product's applicability and flexibility, making it suitable for a variety of environments, including homes and offices.

[0036] In some embodiments, the angle between the detection laser emitted by the laser detection module 300 and the placement plane of the electric heater 10 can be but is not limited to 15°, 20°, 25°, 30°, 35°, 40°, 45°, 50°, 55° or 60°.

[0037] In some embodiments, the laser detection module 300 includes a transmitter and a receiver. The transmitter is used to emit detection laser light, and the receiver is used to receive the detection laser light after it is reflected by an obstacle. The control module 400 is connected to the transmitter and receiver. The transmitter is responsible for emitting detection laser pulses, which form a beam in front of the sensor. By emitting laser pulses at a certain angle (e.g., 15°-60°) toward the ground, obstacles of varying heights can be effectively covered. Laser pulses have high directionality and stability, enabling precise distance measurement, thereby ensuring accurate perception of the obstacle's location. When the emitted laser pulse encounters an obstacle, part of the laser light is reflected back. The receiver is responsible for receiving these reflected laser pulses. The receiver records the time difference between the laser pulse being emitted and being received. This time difference can be used to calculate the distance between the laser detection module 300 and the obstacle. The control module 400 processes the signal received by the receiver to calculate the distance between the obstacle and the laser detection module 300. Based on this calculated distance information, the control module 400 adjusts the heating power of the heating module 200. In this way, when it is detected that the obstacle is too close, the control module 400 will reduce the heating power or turn off the electric heater 10; when the obstacle is far away, the control module 400 will increase the heating power to maintain a constant comfortable temperature.

[0038] In some embodiments, the laser detection module 300 is spaced apart from the heating module 200. This spacing effectively prevents the high temperature generated by the heating module 200 from affecting the laser detection module 300. High temperatures can cause instability or damage to the laser detection module 300. This spacing ensures that the laser detection module 300 operates in a stable temperature environment, improving detection accuracy.

[0039] In addition, since the laser detection module 300 is far away from the high temperature area, the laser detection module 300 will not age or be damaged due to long-term exposure to a high temperature environment, thereby extending the overall service life of the electric heater 10.

[0040] Furthermore, the spacing of the laser detection module 300 and the heating module 200 makes the internal space layout of the electric heater 10 more reasonable, facilitating heat dissipation and maintenance. The heating module 200 and the laser detection module 300 operate independently without interfering with each other, improving the reliability and stability of the electric heater 10.

[0041] In some embodiments, the control module 400 includes a circuit board 410, which is located between the laser detection module 300 and the heating module 200. The circuit board 410 is connected to the housing 100. The circuit board 410 and the housing 100 together form an installation cavity 101. The laser detection module 300 is located in the installation cavity 101 and is connected to the circuit board 410. The circuit board 410 serves as the control center, integrating the processing unit, power regulation circuit, and other necessary electronic components. This integrated design facilitates maintenance and upgrades, improving the reliability and maintainability of the device.

[0042] Placing the circuit board 410 between the laser detection module 300 and the heating module 200 makes the internal structure of the entire electric heater 10 more compact and orderly. This layout optimizes space utilization, reduces unnecessary gaps, and makes the electric heater 10 more compact as a whole.

[0043] In addition, the mounting cavity 101 formed by the circuit board 410 and the shell 100 provides a closed environment for the laser detection module 300, which can effectively prevent external factors such as dust and moisture from affecting the laser detection module 300 and extend its service life.

[0044] Moreover, the circuit board 410 is located between the laser detection module 300 and the heating module 200, which plays a certain role in heat insulation, reducing the impact of the high temperature generated by the heating module 200 on the laser detection module 300, ensuring that the laser detection module 300 operates in a stable temperature environment, and improving detection accuracy and reliability.

[0045] In some embodiments, the laser detection module 300 is directly connected to the circuit board 410, eliminating the need for external cables, reducing wiring complexity, and improving the reliability and aesthetics of the electrical connection. Furthermore, the signal transmission path on the circuit board 410 is shorter, reducing signal delays and interference, and improving the system's response speed and stability.

[0046] In some embodiments, the housing 100 is provided with a light guide hole 102, which is connected to the mounting cavity 101. The electric heater 10 further includes a transparent cover 500, which is connected to the housing 100 and located in the light guide hole 102. The detection laser emitted by the laser detection module 300 can pass through the transparent cover 500. The transparent cover 500 is generally made of a high-transmittance material to reduce light scattering and refraction, ensure clear transmission of the laser signal, and improve detection accuracy.

[0047] Thus, the transparent cover 500 covers the light guide hole 102, preventing dust, moisture, and other external impurities from entering the mounting cavity 101, thereby protecting the laser detection module 300 from environmental factors and extending its service life. The transparent cover 500 provides an additional layer of protection, preventing the laser detection module 300 from damage due to accidental collisions or scratches.

[0048] In addition, the design of the transparent cover 500 ensures that the detection laser emitted by the laser detection module 300 can smoothly pass through the housing 100 and reach the external environment, and the reflected laser can also smoothly return to the laser detection module 300. This ensures the normal operation of the laser detection module 300 and improves the accuracy and reliability of ranging.

[0049] In some embodiments, the housing 100 includes an outer shell 110 and a base 120 . The outer shell 110 is rotatably connected to the base 120 . The heating module 200 and the laser detection module 300 are both installed in the outer shell 110 .

[0050] Thus, the housing 110 is rotatably connected to the base 120, so that the user can adjust the direction of the electric heater 10 as needed, thereby achieving multi-angle heating. Whether the user is sitting on the sofa, lying in bed or in different places in the room, the housing 110 can be rotated to obtain the best heating effect.

[0051] In addition, by rotating the outer shell 110, the hot air can be evenly distributed to all corners of the room, avoiding local overheating or overcooling, and improving the overall heating comfort.

[0052] Furthermore, by rotating the housing 110 , it is possible to avoid aiming at a certain area for a long time, thereby reducing safety hazards caused by local overheating, such as the risk of burns or fire.

[0053] In some embodiments, one of the housing 110 and the base 120 is provided with a receiving groove 130 , and the other is provided with a rotating post 140 . The rotating post 140 is rotatably positioned in the receiving groove 130 .

[0054] Thus, through the design of the receiving groove 130 and the rotating column 140, the housing 110 can be smoothly rotated on the base 120, ensuring the stability of the electric heater 10 during use. This design reduces shaking and unnecessary friction, making the rotation operation smoother.

[0055] In addition, the cooperation between the receiving groove 130 and the rotating column 140 can provide a certain positioning function, so that the housing 110 can stay firmly when it is rotated to a specific position, and avoid random movement due to slight external force.

[0056] Moreover, the design of the receiving groove 130 and the rotating column 140 simplifies the assembly process of the housing 110 and the base 120 . The connection can be completed by simply inserting the rotating column 140 into the receiving groove 130 without the need for complicated tools or steps.

[0057] In some embodiments, the housing 110 includes a front shell 111 and a rear shell 112 connected to each other. The front shell 111 and the rear shell 112 together enclose a receiving space 103 . The heating module 200 is located in the receiving space 103 . The rear shell 112 has a handle 113 .

[0058] Thus, the handle portion 113 on the rear housing 112 is designed to allow the user to easily lift and move the electric heater 10, which provides great convenience, especially when it needs to be relocated or cleaned. In addition, the position and design of the handle portion 113 are generally ergonomic, and the user can easily lift the electric heater 10 with one hand without additional assistance.

[0059] In some embodiments, the handle portion 113 is a groove that is recessed from the rear shell 112 toward the front shell 111 . The groove has an opening that is located on a side of the rear shell 112 that faces away from the front shell 111 .

[0060] Thus, the groove design allows the user to easily insert their fingers into the groove, providing a natural and comfortable gripping point for facilitating one-handed lifting and moving of the electric heater 10 .

[0061] In addition, the groove design provides a stable gripping position, reducing the risk of the electric heater 10 slipping during transportation and enhancing the safety of transportation.

[0062] In some embodiments, the heating module 200 includes a plurality of heating tubes 210 , which are sequentially arranged along the length direction of the housing 100 , and each heating tube 210 is sequentially arranged along the height direction of the housing 100 .

[0063] In this way, a more uniform heat distribution can be achieved by arranging multiple heating tubes 210 along the length and height of the housing 100. This design allows the electric heater 10 to cover a larger area and provide a more uniform heating effect.

[0064] In addition, the simultaneous operation of multiple heating tubes 210 can quickly raise the room temperature, shorten the preheating time, and allow users to feel warm more quickly. Moreover, the arrangement of the heating tubes 210 is coordinated with the design of the housing 110, enhancing the overall aesthetics of the electric heater 10 and making it better integrated into various home environments.

[0065] In some embodiments, the power of the multiple heating tubes 210 can be adjusted individually or in combination as needed, thereby achieving more precise temperature control and providing users with a more comfortable heating experience. Users can adjust the operating state of the heating tubes 210 according to actual needs. For example, when full power operation is not required, some heating tubes 210 can be selected to operate to save energy.

[0066] In some embodiments, the front shell 111 is provided with a heat dissipation outlet 105, and the rear shell 112 is provided with a heat dissipation inlet 104. The heat dissipation outlet 105 and the heat dissipation inlet 104 are both connected to the accommodating space 103, and air can flow into the heat dissipation outlet 105 from the heat dissipation inlet 104 through the heating pipe 210.

[0067] In some embodiments, the electric heater 10 further includes a reflective cover 600 , which can reflect the heat of the heating tube 210 to the heat dissipation outlet 105 .

[0068] In some embodiments, the electric heater 10 further includes a protective net 700 , which can be disposed at the heat dissipation outlet 105 , thereby providing protection and helping to reduce direct contact between the user's hands and the heating tube 210 .

[0069] In some embodiments, the laser detection module 300 may be a laser. The laser sensor on the electric heater 10 senses the distance between the user and the heater, allowing the control module 400 to control power changes to achieve a constant temperature regulation effect, allowing users to experience comfortable temperature heating and also achieving energy saving effects.

[0070] In some embodiments, when the electric heater 10 is in a constant temperature mode, the laser detection module 300 emits a laser pulse. When the laser pulse hits an obstacle (the obstacle can be a user or other object), it is reflected by the obstacle and then returns to the laser detection module 300. The time from the emission of the light pulse to the return is recorded. The laser sensor receives the signal, confirms the distance between the laser detection module 300 and the obstacle, and then transmits it to the control module 400. The control module 400 controls the power. When the obstacle is less than 150 mm away from the laser detection module 300, the prototype stops working (standby). When the obstacle is 150 mm away from the heating element, the power is reduced to 300 W. When the obstacle is 200 mm away from the heating element, the power is reduced to 400 W. And so on. When the obstacle is greater than or equal to 500 mm away from the heating element, the heating module 200 is in the maximum power (for example, 900 W) state and works at 900 W (the distance and power are for reference only and can be adjusted accordingly according to actual conditions).

[0071] The electric heater 10 of the present application is safer to use. During use, if curtains, clothing, etc. cover the product, the laser detection module 300 can sense that the obstacle is too close (less than 150mm) and the electric heater 10 can immediately shut down automatically, avoiding the danger of rising temperatures caused by the covering, thereby improving product safety.

[0072] In some embodiments, the ranging range of the laser sensor is adjustable, and the measurement accuracy in different environments is not affected by the reflectivity of the target object, and accurate ranging up to 5m can be achieved.

[0073] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0074] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0075] The foregoing is merely a detailed description of the present invention, intended to enable those skilled in the art to understand and implement the present invention. 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 the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be construed in the widest manner consistent with the principles and novel features claimed herein.

Claims

1. An electric heater, characterized in that: include: case; A heating module is installed in the housing and is used to heat the air; a laser detection module capable of emitting a detection laser to detect the distance between the electric heater and an obstacle, wherein the angle formed between the detection laser emitted by the laser detection module and the placement plane of the electric heater is 15°-60°; as well as A control module, wherein the control module can control the heating power of the heating module according to the detection result of the laser detection module.

2. The electric heater according to claim 1, characterized in that The laser detection module includes a transmitter and a receiver, wherein the transmitter is used to transmit the detection laser, and the receiver is used to receive the detection laser after being reflected by the obstacle; the control module is connected to the transmitter and the receiver.

3. The electric heater according to claim 1, characterized in that The laser detection module and the heating module are spaced apart.

4. The electric heater according to claim 1, characterized in that The control module includes a circuit board, which is located between the laser detection module and the heating module. The circuit board is connected to the shell. The circuit board and the shell together form an installation cavity. The laser detection module is located in the installation cavity and is connected to the circuit board.

5. The electric heater according to claim 4, characterized in that The shell is provided with a light guide hole, which is connected to the installation cavity. The electric heater also includes a transparent cover, which is connected to the shell and located at the light guide hole. The detection laser emitted by the laser detection module can pass through the transparent cover.

6. The electric heater according to any one of claims 1 to 5, characterized in that: The housing comprises an outer shell and a base, the outer shell is rotatably connected to the base, and the heating module and the laser detection module are both installed in the outer shell.

7. The electric heater according to claim 6, characterized in that One of the shell and the base is provided with a receiving groove, and the other is provided with a rotating column, and the rotating column is rotatably located in the receiving groove.

8. The electric heater according to claim 6, characterized in that The housing includes a front shell and a rear shell that are connected. The front shell and the rear shell together enclose a receiving space. The heating module is located in the receiving space. The rear shell has a handle.

9. The electric heater according to claim 8, characterized in that The handle portion is a groove, which is recessed from the rear shell toward the front shell. The groove has an opening, and the opening is located on a side of the rear shell away from the front shell.

10. The electric heater according to any one of claims 1 to 5, characterized in that: The heating module includes a plurality of heating tubes, which are sequentially arranged along the length direction of the shell, and each of the heating tubes is sequentially arranged along the height direction of the shell.

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