Heating device with anti-scald prompting function

Abstract

The utility model provides a heating device with anti-scald prompt, which comprises a base, a heating element, a heating container, a projection assembly and a control circuit board, the base is provided with a lug boss, the heating element is arranged in the base, the heating element is provided with a heating surface, the heating surface is upwards exposed out of the base, and the projection assembly is arranged on the lug boss. The heating container is placed on the heating surface, a projection assembly is arranged on the protruding part, the projection assembly is provided with anti-scalding prompt patterns or characters, and the projection direction of the projection assembly intersects with the heating surface so that the projection assembly can project the anti-scalding prompt patterns or characters on the heating surface. The projection assembly can visually remind a user to pay attention to the high temperature of the heating surface and keep away from the heating surface, and scalding is avoided.

Description

Technical Field

[0001] The utility model relates to a heating device, in particular to a heating device with an anti-scalding reminder. Background Art

[0002] Existing electric ceramic heating devices or other heating devices with exposed heating elements include a base body, in which the heating element is installed. The heating element has an exposed heating surface for placing a heating container. During the heating process or after the heating is completed, the heating container is removed. At this time, the heating surface temperature is very high and is exposed outside the base body, which is easy for users to ignore. During operation, users may accidentally touch the heating surface with their hands, causing burns, or other people may touch the heating surface with their hands without knowing it, causing burns. Utility Model Content

[0003] Based on the deficiencies of the prior art, the purpose of the present invention is to provide a heating device with an anti-scalding reminder. By projecting the anti-scalding reminder pattern or text onto the heating surface, the user can be intuitively reminded to pay attention to the high temperature of the heating surface, stay away from the heating surface, and avoid burns.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a heating device with an anti-scalding reminder, comprising a base, a heating element, a heating container, a projection assembly and a control circuit board, the base is provided with a protrusion, the heating element is arranged in the base, the heating element is provided with a heating surface, the heating surface is upwardly exposed at the bottom of the base, the heating container is placed on the heating surface, the protrusion protrudes upward from the heating surface and is arranged adjacent to the heating surface, the protrusion is provided with a projection assembly, the projection assembly is located above the heating surface, the projection assembly is provided with an anti-scalding reminder pattern or text, the projection direction of the projection assembly intersects with the heating surface, so that the projection assembly projects the anti-scalding reminder pattern or text onto the heating surface, and the projection assembly and the heating element are electrically connected to the control circuit board.

[0005] As an improvement of the heating device with anti-scalding prompt of the utility model, the heating device with anti-scalding prompt of the utility model is also provided with a temperature detection device and a detection device, and the temperature detection device and the detection device are both electrically connected to the control circuit board. When the temperature detection device detects that the temperature of the heating surface is greater than a preset temperature, it sends out a first detection signal, and when the detection device detects that the heating container is not placed on the heating surface, it sends out a second detection signal. The control circuit board controls the operation of the projection component according to the first detection signal and the second detection signal.

[0006] As an improvement of the heating device with anti-scalding reminder of the utility model, the temperature detection device of the heating device with anti-scalding reminder of the utility model is an infrared temperature detection device, the infrared temperature detection device is arranged on the raised portion, and the detection direction of the infrared temperature detection device intersects with the heating surface, and the detection device is an infrared detection device, the infrared detection device is arranged on the raised portion, and the detection device is provided with an infrared transmitter and an infrared receiver, and the detection direction of the infrared transmitter and the detection direction of the infrared receiver are both toward the heating surface.

[0007] As an improvement of the heating device with anti-scalding reminder of the utility model, when the heating container is placed on the heating surface, the detection direction of the infrared temperature detection device intersects with the heating container to detect the temperature of the heating container.

[0008] As an improvement of the heating device with anti-scalding reminder of the utility model, the raised portion of the heating device with anti-scalding reminder of the utility model is arranged outside the heating surface, a gap is provided between the raised portion and the heating surface, the projection component protrudes out of the raised portion toward the heating surface, and the projection direction of the projection component is inclined toward the heating surface.

[0009] As an improvement of the heating device with anti-scalding reminder of the utility model, the projection assembly of the heating device with anti-scalding reminder of the utility model is provided with a light source and a light-transmitting member, the light source is electrically connected to the control circuit board, the light-transmitting member is provided with the anti-scalding reminder pattern or text, and along the projection direction of the projection assembly, the light-transmitting member is located in front of the light source.

[0010] As an improvement of the heating device with anti-scalding reminder of the utility model, the light source of the heating device with anti-scalding reminder of the utility model is a laser, a light emitting diode, a digital micromirror device, a liquid crystal layer or a neon lamp.

[0011] As an improvement of the heating device with anti-scalding reminder of the utility model, the light-transmitting member of the heating device with anti-scalding reminder of the utility model is made of a light-transmitting material, a display screen or three liquid crystal panels.

[0012] As an improvement of the heating device with anti-scalding reminder of the utility model, the heating device with anti-scalding reminder of the utility model is also provided with a camera, which is electrically connected to the control circuit board, and the camera is installed on the raised portion, and the shooting direction of the camera is toward the heating container to detect the water level in the heating container. When the camera detects that the water level of the heating container is lower than the recommended minimum water level of the heating container, the control circuit board controls the heating element to stop heating.

[0013] As an improvement of the heating device with anti-scalding reminder of the utility model, the heating element of the heating device with anti-scalding reminder of the utility model includes an insulating seat and a heating wire coiled on the insulating seat, and the heating wire is electrically connected to the control circuit board.

[0014] As an improvement of the heating device with anti-scalding reminder of the utility model, the heating container of the heating device with anti-scalding reminder of the utility model is a kettle.

[0015] Compared with the prior art, the heating device with anti-scalding reminder of the utility model has the following beneficial effects: the projection component is located above the heating surface, the projection component is provided with an anti-scalding reminder pattern or text, the projection direction of the projection component intersects with the heating surface, so that the projection component projects the anti-scalding reminder pattern or text onto the heating surface, which can intuitively remind the user to pay attention to the high temperature of the heating surface, stay away from the heating surface, and avoid burns. In addition, since the anti-scalding reminder pattern or text is displayed through projection rather than directly printed or engraved on the heating surface, this makes cleaning and maintenance more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the working state structure of the heating device with anti-scalding reminder of the utility model.

[0017] Figure 2 for Figure 1 Exploded view of.

[0018] Figure 3 for Figure 1 sectional view of .

[0019] Figure 4 It is a structural schematic diagram of a base of a heating device with an anti-scalding reminder according to the utility model.

[0020] Figure 5 for Figure 4 Schematic diagram of the structure at A.

[0021] Figure 6 It is a structural schematic diagram of a projection assembly of a heating device with an anti-scalding reminder according to the utility model.

[0022] Figure 7 The utility model is a schematic diagram of the structure of the infrared detection device and the infrared detection device of the heating device with anti-scalding prompt. DETAILED DESCRIPTION

[0023] refer to Figure 1-7 , a preferred embodiment of the heating device with anti-scalding reminder of the utility model is described in detail.

[0024] like Figure 2 , Figure 3 and Figure 4 As shown, in this embodiment, the utility model is a heating device with anti-scalding reminder, including a base 1, a heating element 4, a heating container 2, a projection assembly 3 and a control circuit board (not shown), the base 1 is provided with a protrusion 11, the heating element 4 is arranged in the base 1, the heating element 4 is provided with a heating surface 41, the heating surface 41 is upwardly exposed at the bottom of the base 1, the heating container 2 is placed on the heating surface 41, the protrusion 11 protrudes upward from the heating surface 41 and is arranged adjacent to the heating surface 41, the protrusion 11 is provided with a projection assembly 3, the projection assembly 3 is located above the heating surface 41, the projection assembly 3 is provided with an anti-scalding reminder pattern or text C, the projection direction of the projection assembly 3 intersects with the heating surface 41, so that the projection assembly 3 projects the anti-scalding reminder pattern or text C The prompt pattern or text C is projected onto the heating surface 41, and the projection component 3 and the heating element 4 are electrically connected to the control circuit board. In the present embodiment, the heating element 4 is an electric ceramic heating device. After the work is completed, the temperature of the heating surface will be very high, and the cooling time is relatively slow. By setting the projection component 3 to project the anti-scalding prompt pattern or text C onto the heating surface 41, the user can be intuitively reminded to pay attention to the high temperature of the heating surface 41, stay away from the heating surface 41, and avoid burns. Since the anti-scalding prompt pattern or text C is displayed by projection rather than directly printed or engraved on the heating surface 41, it makes cleaning and maintenance more convenient. In the present embodiment, the anti-scalding prompt pattern or text C is the text "The board surface is hot, please do not touch". In other embodiments, the pattern or text C can be replaced by other warning words.

[0025] like Figure 3 , Figure 4 and Figure 5As shown, in a preferred embodiment, the heating device with anti-scalding reminder of the utility model is further provided with a temperature detection device 200 and a detection device 300, and the temperature detection device 200 and the detection device 300 are both electrically connected to the control circuit board. When the temperature detection device 200 detects that the temperature of the heating surface 41 is greater than the preset temperature, a first detection signal is sent, and when the detection device 300 detects that the heating container 2 is not placed on the heating surface 41, a second detection signal is sent. The control circuit board controls the projection component 3 to work according to the first detection signal and the second detection signal. That is, when the detection device 300 detects that there is no shielding on the heating surface 41, and the temperature detection device 200 detects that the temperature of the heating surface 41 is greater than the preset temperature, the anti-scalding pattern or text C will be projected on the heating surface 41, intuitively reminding the user to pay attention to the high temperature of the heating surface 41, stay away from the heating surface 41, and avoid scalding. In this embodiment, the preset temperature is 40°, and in other embodiments, the preset temperature can also be set to 50° or 60°, and the setting value of the preset temperature will not scald the user.

[0026] like Figure 4 , Figure 5 and Figure 7As shown, the temperature detection device 200 of the heating device with anti-scalding reminder of the utility model is an infrared temperature detection device, the infrared temperature detection device 200 is arranged on the raised portion 11, and the detection direction of the infrared temperature detection device 200 intersects with the heating surface 41, the detection device 300 is an infrared detection device, the infrared detection device 300 is arranged on the raised portion 11, and the detection device 300 is provided with an infrared transmitter 301 and an infrared receiver 302, the detection direction of the infrared transmitter 301 and the detection direction of the infrared receiver The detection direction of 302 is toward the heating surface 41; specifically, the protrusion 11 is arranged outside the heating surface 41, and an installation cavity 111 is formed in the protrusion 11. A temperature measuring hole 112, an infrared emitting hole 113 and an infrared receiving hole 114 are opened on a side wall of the installation cavity 111 close to the heating surface 41. The temperature measuring hole 112 is adjacent to the infrared emitting hole 113 and the infrared receiving hole 114. The infrared temperature measuring device 200 and the infrared detection device 300 are both arranged in the installation cavity 111. The device 200 is aligned with the temperature measuring hole 112, and the infrared temperature measuring device 200 projects infrared rays onto the heating surface 41 through the temperature measuring hole 112 to detect the temperature of the heating surface 41. The infrared transmitter 301 and the infrared receiver 302 are aligned with the infrared transmitting hole 113 and the infrared receiving hole 114 respectively. The infrared transmitter 301 projects infrared rays onto the heating surface 41 through the infrared transmitting hole 113, and the infrared receiver 302 receives the reflected infrared rays through the infrared receiving hole 114; when the infrared receiver 302 When the received infrared detection signal is relatively weak, a second detection signal is sent out. The control circuit board determines that there is no obstruction on the heating surface 41 according to the second detection signal. At this time, when the infrared temperature measuring device 200 detects that the temperature of the heating surface 41 is greater than the preset temperature, a second detection signal is sent out. The control circuit board controls the projection component 3 to work according to the second detection signal, and projects the anti-scalding pattern or text C onto the heating surface 41, so as to intuitively remind the user to pay attention to the high temperature of the heating surface 41, stay away from the heating surface 41, and avoid burns. In other embodiments, the detection device 300 can be a camera.

[0027] like Figure 4 , Figure 5 and Figure 7 As shown, when the heating container 2 is placed on the heating surface 41, the detection direction of the infrared temperature detection device 200 intersects with the heating container 2 to detect the temperature of the heating container 2. The control circuit board controls the heating element 4 to work through the infrared temperature detection device 200. For example, when the heating container is a kettle, the heating element 4 is controlled to stop working when the temperature reaches 100 degrees or other temperatures.

[0028] like Figure 3 and Figure 4As shown, in a preferred embodiment, the raised portion 11 of the heating device with an anti-scalding reminder of the utility model is arranged outside the heating surface 41, and a gap is provided between the raised portion and the heating surface. The projection component 3 protrudes out of the raised portion 11 in the direction of the heating surface 41, and the projection direction of the projection component 3 is inclined toward the heating surface 41 so that the projection direction of the projection component 3 intersects with the heating surface 41.

[0029] like Figure 6 As shown, in a preferred embodiment, the projection assembly 3 of the utility model with a heating device for preventing scalding is provided with a light source 31 and a light-transmitting member 32, wherein the light source 31 is electrically connected to the control circuit board, and the light-transmitting member 32 is provided with the light-proof reminder pattern or text C, and along the projection direction of the projection assembly 3, the light-transmitting member 32 is located in front of the light source 31. In this embodiment, the light source 31 is a laser, and in other embodiments, the light source 31 may be a light-emitting diode (LED), a digital micromirror device (DMD), a liquid crystal layer or a neon lamp. In this embodiment, the light-transmitting member 32 is made of a light-transmitting material, and in other implementations, the light-transmitting member 32 may be a display screen or three liquid crystal panels. For example, in a specific embodiment, the projection component is applied to laser projection technology, which is a projection technology that uses laser as a light source; or, the projection component is applied to LED projection technology, which is a projection technology that uses a light emitting diode (LED) as a light source; or, the projection component is applied to DLP projection technology, and digital light processing (DLP) projection technology is a projection technology based on a digital micromirror device (DMD), which controls the micromirrors on the DMD to reflect light to form an image; or, the projection component is applied to LCD projection technology, and 3LCD projection technology is a projection technology that uses three liquid crystal panels to generate images, which divides the light source into three colors of red, green, and blue, and then modulates them through three liquid crystal panels respectively, and finally synthesizes a color image; or, the projection component is applied to LCOS projection technology, and liquid crystal on silicon (LCOS) projection technology is a projection technology that combines liquid crystal display and CMOS integrated circuit technology, and uses a liquid crystal layer to modulate light to form an image.

[0030] like Figure 4 and Figure 5As shown, in a preferred embodiment, the heating device with anti-scalding reminder of the utility model is also provided with a camera 200, and the camera 200 is electrically connected to the control circuit board. The camera 200 is installed on the protruding portion 11, and the shooting direction of the camera 200 is toward the heating container 2 to detect the water level in the heating container 2. When the camera 200 detects that the water level of the heating container 2 is lower than the recommended minimum water level of the heating container 2, the control circuit board controls the heating element 4 to stop heating according to the signal sent by the camera 200. In this embodiment, the heating container 2 is made of transparent material to facilitate the viewing of the water level in the heating container 2.

[0031] like Figure 3 As shown, in a preferred embodiment, the heating element 4 of the heating device with anti-scalding reminder of the utility model includes an insulating seat 42 and an electric heating wire 43 coiled on the insulating seat 42, and the electric heating wire 43 is electrically connected to the control circuit board. In this embodiment, the heating element 4 also includes a microcrystalline plate 44, which is covered on the insulating seat 42 and located above the electric heating wire 43. The microcrystalline plate 44 is exposed upward outside the base 1, and the top surface of the microcrystalline plate 44 forms the heating surface 41; in other embodiments, the heating element 4 may also be an electromagnetic heating element, or the heating element 4 is a combination of an electromagnetic heating element and an electric heating wire.

[0032] like Figure 1 As shown, in a preferred embodiment, the heating container 2 of the heating device with anti-scalding prompt of the utility model is a kettle. In this embodiment, the kettle is made of a transparent material. In other embodiments, the heating container 2 can be a soup pot, a stew pot, a frying pan or a steamer.

[0033] Working principle: When the heating device with anti-scalding reminder completes the heating work and removes the heating container 2 from the heating surface, or when the heating device with anti-scalding reminder needs to remove or replace the heating container 2 during the heating process, the temperature detection device 200 detects that the temperature of the heating surface 41 is greater than the preset temperature (such as the preset temperature is 60°) and sends a first detection signal. The detection device 300 detects that there is no heating container 2 on the heating surface 41 and sends a second detection signal. The control circuit board controls the projection component 3 to work according to the first detection signal and the second detection signal. The projection component 3 projects the anti-scalding reminder pattern or text C on the heating surface 41, which can intuitively remind the user to pay attention to the high temperature of the heating surface 41, stay away from the heating surface 41, and avoid burns.

[0034] Compared with the prior art, the utility model has the following beneficial effects: the projection component is located above the heating surface, the projection component is provided with an anti-scalding reminder pattern or text, the projection direction of the projection component intersects with the heating surface, so that the projection component projects the anti-scalding reminder pattern or text onto the heating surface, which can intuitively remind the user to pay attention to the high temperature of the heating surface, stay away from the heating surface, and avoid burns. In addition, since the anti-scalding reminder pattern or text is displayed through projection rather than directly printed or engraved on the heating surface, this makes cleaning and maintenance more convenient.

[0035] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. A heating device with anti-scalding reminder, characterized in that: The utility model comprises a base, a heating element, a heating container, a projection assembly and a control circuit board, wherein the base is provided with a protrusion, the heating element is arranged in the base, the heating element is provided with a heating surface, the heating surface is upwardly exposed at the bottom of the base, the heating container is placed on the heating surface, the protrusion protrudes upward from the heating surface and is arranged adjacent to the heating surface, the protrusion is provided with a projection assembly, the projection assembly is located above the heating surface, the projection assembly is provided with an anti-scalding reminder pattern or text, the projection direction of the projection assembly intersects with the heating surface, so that the projection assembly projects the anti-scalding reminder pattern or text onto the heating surface, and the projection assembly and the heating element are electrically connected to the control circuit board.

2. The heating device with anti-scalding reminder according to claim 1, characterized in that: A temperature detection device and a detection device are also provided, and both the temperature detection device and the detection device are electrically connected to the control circuit board. The temperature detection device sends out a first detection signal when it detects that the temperature of the heating surface is greater than a preset temperature, and the detection device sends out a second detection signal when it detects that the heating container is not placed on the heating surface. The control circuit board controls the operation of the projection component according to the first detection signal and the second detection signal.

3. The heating device with anti-scalding reminder according to claim 2, characterized in that: The temperature detection device is an infrared temperature detection device, which is arranged on the raised portion, and the detection direction of the infrared temperature detection device intersects with the heating surface. The detection device is an infrared detection device, which is arranged on the raised portion, and the detection device is provided with an infrared transmitter and an infrared receiver, and the detection direction of the infrared transmitter and the detection direction of the infrared receiver are both toward the heating surface.

4. The heating device with anti-scalding reminder according to claim 3, characterized in that: When the heating container is placed on the heating surface, the detection direction of the infrared temperature detection device intersects with the heating container to detect the temperature of the heating container.

5. The heating device with anti-scalding reminder according to claim 1, characterized in that: The raised portion is arranged outside the heating surface, a gap is arranged between the raised portion and the heating surface, the projection component protrudes out of the raised portion toward the heating surface, and the projection direction of the projection component is inclined toward the heating surface.

6. The heating device with anti-scalding reminder according to claim 1, characterized in that: The projection assembly is provided with a light source and a light-transmitting member, the light source is electrically connected to the control circuit board, the light-transmitting member is provided with the anti-scalding reminder pattern or text, and along the projection direction of the projection assembly, the light-transmitting member is located in front of the light source.

7. The heating device with anti-scalding reminder according to claim 6, characterized in that: The light source is a laser, a light emitting diode, a digital micromirror device, a liquid crystal layer or a neon lamp.

8. The heating device with anti-scalding reminder according to claim 6, characterized in that: The light-transmitting member is made of a light-transmitting material, a display screen or three liquid crystal panels.

9. The heating device with anti-scalding reminder according to claim 1, characterized in that: A camera is also provided, which is electrically connected to the control circuit board. The camera is installed on the raised portion, and the camera shoots in a direction toward the heating container to detect the water level in the heating container. When the camera detects that the water level in the heating container is lower than the recommended minimum water level of the heating container, the control circuit board controls the heating element to stop heating.

10. The heating device with anti-scalding reminder according to claim 1, characterized in that: The heating element comprises an insulating seat and a heating wire coiled on the insulating seat, and the heating wire is electrically connected to the control circuit board.

11. The heating device with scalding prevention prompt according to claim 1, characterized in that: The heating container is a kettle.

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