A control device and a cooking appliance having the same

Abstract

The utility model provides a kind of control device and stove with it, the control device includes PCB board, and PCB board is provided with dry burning indicating lamp, buzzer, at least two nixie tubes and the key unit being set corresponding with each nixie tube, dry burning indicating lamp and at least two nixie tubes are side by side along first direction, and dry burning indicating lamp is located between at least two nixie tubes;When PCB board detects that stove occurs dry burning, PCB board is used to light dry burning indicating lamp, and start buzzer.When detecting that stove occurs dry burning, the visual alarm and auditory alarm of dry burning indicating lamp and buzzer can be controlled by the PCB board of control device, realize double prompt, it is favorable for user to take follow-up operation such as timely removal pot, improve security, and, it is convenient for user to determine the reason of stove anomaly, improve use experience. At least two nixie tubes are used to display the timing remaining time of corresponding at least two stove head in real time, improve universality.

Description

Technical Field

[0001] This utility model relates to the field of stove technology, and in particular to a control device and a stove having the same. Background Technology

[0002] To prevent safety hazards caused by dry burning of cookware, anti-dry burning functions are increasingly widely used in cooktops. For example, when the control device detects an abnormal temperature rise or a preset threshold at the bottom of the pot or other locations via a temperature detection probe, it can automatically cut off the gas supply or reduce the heat to achieve safety protection. However, existing anti-dry burning functions mainly focus on the control logic and temperature detection probe design. When an abnormality occurs, causing changes in heat or gas shut-off, users often cannot clearly understand the cause of the cooktop malfunction. There is a lack of intuitive, real-time user-friendly alerts, and it hinders users from taking timely actions such as removing the cookware, thus affecting the user experience.

[0003] In addition, with the continuous improvement of the intelligence level of stoves, the number of electronic components on PCBs (Printed Circuit Boards) has increased significantly, resulting in problems such as complex PCB layout and large size. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology, such as the difficulty for users to know the cause of stove abnormalities in real time, the impact on user experience, and the complex PCB layout, and to provide a control device and a stove having the same.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A control device includes a PCB board, on which are provided an anti-dry-burning indicator light, a buzzer, at least two digital tubes, and a button unit corresponding to each of the digital tubes. The anti-dry-burning indicator light and the at least two digital tubes are arranged side by side along a first direction, with the anti-dry-burning indicator light located between the at least two digital tubes. When dry burning is detected in the stove, the PCB board is used to illuminate the anti-dry-burning indicator light and activate the buzzer.

[0007] In this solution, when dry burning is detected in the stove, the PCB board of the control device can control the anti-dry burning indicator light and buzzer to issue visual and audible warnings, providing dual alerts. This allows users to take timely actions such as removing the cookware, improving safety. Furthermore, it helps users understand the cause of the stove malfunction, enhancing the user experience. At least two digital displays show the remaining time for at least two corresponding burners in real time, improving versatility.

[0008] Optionally, a low power indicator light is provided on the edge of the PCB board, and the low power indicator light and the anti-dry burning indicator light are spaced apart along a second direction perpendicular to the first direction; when the power of the stove is lower than a preset value, the PCB board is used to light up the low power indicator light.

[0009] In this solution, when the power supply of the stove is lower than the preset value, the low power indicator light on the PCB board will illuminate to provide a visual prompt, which helps users to clearly understand the cause of the stove malfunction and ensure the normal operation of the control device.

[0010] Furthermore, the button unit is located between the anti-dry-burning indicator light and the low battery indicator light. The button unit includes a first button for inputting operation signals to the PCB board to start the timing and end the timing, and a second button for inputting operation signals to the PCB board to set the timing time. The first button and the second button are arranged side by side along the first direction.

[0011] In this design, the button unit is arranged between the anti-dry-burning indicator and the low battery indicator, with a compact structure. The first button is used to start and stop the timer, and the second button is used to set the timer duration, making it easy to operate.

[0012] Optionally, the control device further includes a housing with an opening, the opening of which is detachably covered by a cover plate. The cover plate and the housing together form an accommodating cavity, and the PCB board is fixed to the accommodating cavity. The cover plate has light-transmitting holes corresponding to the anti-dry-burning indicator light and the low-battery indicator light for the light emitted by the corresponding indicator light to propagate; the area of ​​the cover plate corresponding to the digital tube has a display window for the light emitted by the digital tube to propagate.

[0013] In this design, the cover plate has light-transmitting holes and display windows, which facilitates manufacturing and has a simple structure.

[0014] Optionally, a panel is fixedly connected to the side of the cover away from the receiving cavity, and at least one of the panel and the cover is provided with an adhesive layer. The panel is fixedly connected to the cover through the adhesive layer. The number of adhesive layers is at least two, and at least two adhesive layers extend along the first direction and are respectively located on opposite sides of the cover in the second direction.

[0015] In this solution, the adhesive layer facilitates installation and ensures the stability of the surface-to-surface connection method.

[0016] Optionally, the cover plate is recessed inward from the surface away from the PCB board to form a first recess, the first recess being used to avoid the adhesive layer.

[0017] In this design, the first recessed platform ensures that the distance between the cover plate and the panel meets the installation accuracy requirements.

[0018] Optionally, the edge of the cover plate is evenly distributed with a plurality of overflow holes for the flow of adhesive along the second direction, and the area of ​​the cover plate corresponding to the plurality of overflow holes is provided with a second recess, the second recess being used to define the flow area of ​​the adhesive.

[0019] In this solution, the adhesive overflow hole ensures the reliability of the connection and facilitates the full curing of the adhesive. The second recess prevents the adhesive from flowing into the PCB board or housing, ensuring the normal operation of the control device.

[0020] Optionally, the inner wall of the housing is provided with support columns and hooks that abut against the upper and lower sides of the PCB board, for defining the position of the PCB board relative to the housing in a third direction that is perpendicular to both the first and second directions.

[0021] In this solution, the PCB board is pre-positioned using hooks to facilitate installation and maintenance, while support columns enhance the reliability of the installation.

[0022] A stove, including the control device.

[0023] In this solution, the stove uses the PCB board of the control device to light up the anti-dry burning indicator light and activate the buzzer to provide visual and audible warnings, achieving dual prompts and improving safety. Through the PCB board, digital tube and button unit, it can display the remaining time of the timer, set the timer, start the timer and stop the timer, improving the user experience. In addition, the control device has a compact structure.

[0024] The positive and progressive effects of this utility model are as follows:

[0025] When dry burning is detected in the cooktop, the PCB board of the control device can control the anti-dry burning indicator light and buzzer to issue visual and audible warnings, providing dual alerts to enhance safety and help users understand the cause of the cooktop malfunction, thus improving the user experience. At least two digital tubes display the remaining time of the timer for at least two corresponding burners in real time, improving versatility, and the PCB board layout is compact. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the control device according to an embodiment of the present invention.

[0027] Figure 2 This is an exploded view of the control device according to an embodiment of the present invention.

[0028] Figure 3This is a schematic diagram of the control device after the cover plate has been removed, according to an embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the shell structure according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] PCB board 1

[0032] Anti-dry burning indicator light 11

[0033] Buzzer 12

[0034] Digital tube 13

[0035] Low battery indicator light 14

[0036] Button unit 15

[0037] First button 151

[0038] Second button 152

[0039] Conductive sheet 153

[0040] Return spring 154

[0041] First mounting hole 16

[0042] Casing 2

[0043] Base plate 21

[0044] Side panel 22

[0045] 23 Container

[0046] Support column 211

[0047] Second mounting hole 211a

[0048] Support bar 212

[0049] Hook 221

[0050] Buckle 222

[0051] Cover plate 3

[0052] Light transmission hole 31

[0053] Display window 32

[0054] First sinking platform 33

[0055] Second sinkhole 34

[0056] Glue overflow hole 341

[0057] 35-inch connector

[0058] Card slot 351

[0059] Mounting slot 36 Detailed Implementation

[0060] The present invention will be further described below by way of embodiments, but these embodiments are not intended to limit the scope of the present invention. Based on the description of the present invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present invention.

[0061] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection," "setting," "installation," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can mean that two components are internally connected. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0062] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “center,” “top,” “bottom,” “inner,” “outer,” “vertical,” “horizontal,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0063] The terms “first”, “second”, etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0064] The terms “including,” “comprising,” or any other variations thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0065] See Figure 1 and Figure 2The present utility model provides a control device, which comprises a PCB board 1. The PCB board 1 is provided with a dry-burn prevention indicator light 11 and a buzzer 12. When it is detected that the cooker is in a dry-burn state, the PCB board 1 is configured to light up the dry-burn prevention indicator light 11 and activate the buzzer 12. When it is detected that the cooker is in a dry-burn state, the PCB board 1 is configured to control the dry-burn prevention indicator light 11 and the buzzer 12 to emit a visual warning and an auditory warning, so as to realize dual prompts, which is beneficial for the user to take subsequent operations such as removing the pot in time, improving safety, facilitating the user to clarify the cause of the abnormality of the cooker, and enhancing the use experience. For the convenience of description, the first direction is the length direction of the control device (i.e. Figure 1 the left-right direction in the drawing), the second direction is the width direction of the control device (i.e. Figure 1 the front-rear direction in the drawing), and the third direction is the height direction of the control device (i.e. Figure 1 the up-down direction in the drawing).

[0066] The PCB board 1 is further provided with at least two nixie tubes 13, and key units 15 arranged in one-to-one correspondence with each of the nixie tubes 13. The at least two nixie tubes 13 are configured to display the remaining timing time of the corresponding at least two burner heads in real time, so as to improve versatility. The key units 15 are configured to set the timing time, start timing or end timing. Specifically, the key unit 15 includes a first key 151 for inputting operation signals of starting timing and ending timing to the PCB board 1, and a second key 152 for inputting operation signals of setting the timing time to the PCB board 1, which is convenient for operation and improves the use experience. The nixie tube 13 may select an eight-segment nixie tube 13 in the prior art, which includes 8 independent light-emitting units. For example, the light-emitting units may be LED elements, and the 8 LED elements are arranged in a "day" shape or an "8" shape.

[0067] In one embodiment, the key unit 15 is located between the dry-burn prevention indicator light 11 and the low-battery indicator light 14, the first key 151 and the second key 152 are arranged side by side along the first direction, and the at least two nixie tubes 13 are configured to display the timing time of the corresponding at least two burner heads in real time, such as Figure 3 shown in the drawing, in one embodiment, the number of the nixie tubes 13 is two, the two nixie tubes 13 are located on the left and right sides of the PCB board 1, and the two key units 15 are respectively arranged on the same side of the nixie tubes 13 along the second direction, which is convenient for operation, compact in structure, and beneficial to aesthetics.

[0068] In some embodiments, the edge of the PCB board 1 is provided with the low-battery indicator light 14. When the power of the cooker is lower than a preset value, the PCB board 1 is configured to light up the low-battery indicator light 14 to emit a visual prompt, which is convenient for the user to clarify the cause of the abnormality of the cooker and ensures the normal operation of the control device.

[0069] Referring to Figure 3The anti-dry-burn indicator light 11 and at least two digital tubes 13 are arranged side by side along the first direction. The anti-dry-burn indicator light 11 is located between the at least two digital tubes 13. The housings of the low battery indicator light 14 and the anti-dry-burn indicator light 11 can be rectangular, circular, or other housing shapes. The low battery indicator light 14 and the anti-dry-burn indicator light 11 are spaced apart along a second direction perpendicular to the first direction. The structure is compact, making the PCB layout more reasonable and improving the space utilization of the control device.

[0070] See Figure 2 and Figure 4 The control device of this utility model also includes a housing 2 with an opening, and a cover plate 3 is detachably covered at the opening of the housing 2. The cover plate 3 and the housing 2 together form a receiving cavity 23, and the PCB board 1 is fixed inside the receiving cavity 23. Specifically, the housing 2 includes a bottom plate 21, and the bottom plate 21 is bent and extended from its periphery to form a continuous side plate 22. The end of the side plate 22 away from the bottom plate 21 forms an opening.

[0071] See Figure 1 and Figure 2 In one embodiment, the cover plate 3 has light-transmitting holes 31 for the light emitted by the corresponding anti-dry-burning indicator 11 and low battery indicator 14, and a display window 32 for the light emitted by the digital tube 13 is provided in the area of ​​the cover plate 3 corresponding to the digital tube 13. In another embodiment, the cover plate 3 is recessed from its surface away from the PCB board 1 towards the PCB board 1 to form light-transmitting holes 31 that extend to the side where the PCB board 1 is located. The display window 32 is a through hole corresponding to the digital tube 13, which facilitates manufacturing and installation and has a simple structure.

[0072] In another embodiment, the cover plate 3 has a light-transmitting plate (not shown) for the transmission of light emitted by the corresponding anti-dry-burning indicator light 11 and low battery indicator light 14. The display window 32 is flat, and both the light-transmitting plate and the display window 32 are made of transparent plastic or glass. Specifically, the light-transmitting plate and the display window 32 are integrally formed with the cover plate 3, or fixedly connected to the cover plate 3 by at least one of the following connection methods: adhesive bonding, snap-fitting, or fastener connection.

[0073] In some embodiments, a panel (not shown) is fixedly connected to the side of the cover plate 3 away from the receiving cavity 23. The upper surface of the panel is provided with corresponding identification icons in the areas corresponding to the anti-dry burning indicator light 11 and the low battery indicator light 14. Alternatively, the identification icons are affixed to the lamp housing of the aforementioned indicator lights to further facilitate users in identifying the cause of the abnormality and improve the user experience.

[0074] Furthermore, at least one of the panel and the cover plate 3 is provided with an adhesive layer. The panel is fixedly connected to the cover plate 3 through the adhesive layer, which facilitates installation and improves installation stability. In some embodiments, the number of adhesive layers is at least two, and both adhesive layers extend along a first direction and are respectively located on opposite sides of the cover plate 3 in a second direction. Figure 1 As shown, in one embodiment, there are three adhesive layers, and the line connecting the center points of the three adhesive layers forms a triangle, which improves installation stability.

[0075] In one embodiment, the adhesive layer is formed by double-sided adhesive, and the thickness of the adhesive layer is 0.3~0.7mm, for example, the thickness of the adhesive layer is 0.5mm. In this embodiment, the cover plate 3 is recessed inward from the surface away from the PCB board 1 to form a first recessed platform 33. The first recessed platform 33 is provided corresponding to the adhesive layer to avoid the adhesive layer and compensate for the influence of the adhesive layer on the distance between the cover plate 3 and the panel, thereby ensuring that the distance between the cover plate 3 and the panel meets the installation accuracy.

[0076] In one embodiment, the edge of the cover plate 3 is evenly distributed with multiple overflow holes 341 for the flow of adhesives such as silicone sealant. The area of ​​the cover plate 3 corresponding to the multiple overflow holes 341 is provided with an adhesive surface. Adhesive is applied to the adhesive surface, and the adhesive overflows from the overflow holes 341, ensuring that the adhesive is fully distributed on the adhesive surface, thereby ensuring the reliability of the connection. Furthermore, during the adhesive curing process, the overflow holes 341 allow the temperature and humidity of the external environment to fully penetrate into the interior of the adhesive, which is beneficial for full curing and thus ensures the reliability of the connection. Further, the area of ​​the cover plate 3 corresponding to the multiple overflow holes 341 is provided with a second recess 34. The second recess 34 is used to limit the flow area of ​​the adhesive, preventing the adhesive from flowing into the PCB board 1 or the housing 2, ensuring the normal operation of the control device.

[0077] In some embodiments, the inner wall of the housing 2 is provided with a support column 211 that abuts against the lower surface of the PCB board 1, for defining the position of the PCB board 1 relative to the housing 2 in a third direction perpendicular to both the first and second directions. Specifically, the support column 211 is provided on the bottom plate 21 of the housing 2, and corresponding first mounting holes 16 and second mounting holes 211a are respectively provided on the PCB board 1 and the support column 211. Fasteners are inserted into the first mounting holes 16 and the second mounting holes 211a and are fixedly connected to the support column 211 to fix the PCB board 1 into the receiving cavity 23, thereby improving installation reliability and versatility.

[0078] In one embodiment, a plurality of support ribs 212 are provided around the side of the side plate 22 near the bottom plate 21. The plurality of support ribs 212 abut against the lower surface of the PCB board 1 and are connected to the bottom plate 21 to ensure the stability of the installation and improve the structural strength of the housing 2.

[0079] See Figure 4 In one embodiment, the inner wall of the housing 2 is provided with a hook 221 that abuts against the upper surface of the PCB board 1, for defining the position of the PCB board 1 relative to the housing 2 along a third direction. Specifically, the hook 221 is provided on the side plate 22 of the housing 2. During installation, the hook 221 is used to pre-position the PCB board 1 to prevent it from falling off. In this embodiment, there are two first mounting holes 16, which are located on opposite sides of the PCB board 1 along the first direction and on opposite sides of the PCB board 1 along the second direction. This ensures connection stability and reliability while reducing the number of parts and facilitating installation.

[0080] See Figure 1 and Figure 2 The outer surface of the side plate 22 is provided with a buckle 222. The cover plate 3 protrudes along the third direction from the area corresponding to the buckle 222 on its lower surface to form a snap-fit ​​plate 35. The snap-fit ​​plate 35 has a snap-fit ​​groove 351. The buckle 222 and the snap-fit ​​plate 35 are made of elastic materials such as plastic. During installation, when the cover plate 3 is moved downward along the third direction from the top of the housing 2, the snap-fit ​​plate 35 abuts against the buckle 222 and undergoes elastic deformation, so that the buckle 222 can pass through the snap-fit ​​groove 351 and snap with the snap-fit ​​plate 35, thereby fixing the cover plate 3 to the housing 2, which is convenient for installation and maintenance.

[0081] See Figure 2 Each button in the button unit 15 includes a conductive sheet 153 and a return spring 154. The conductive sheet 153 is mounted on the PCB board 1 via the return spring 154. The cover plate 3 has a mounting groove 36, through which the return spring 154 passes, and the conductive sheet 153 is located outside the receiving cavity 23. When the user presses the panel with their finger, the pressure is transmitted to the conductive sheet 153 through the panel, compressing the return spring 154 and electrically connecting the conductive sheet 153 to the PCB board. When the user releases their finger, the return spring 154 undergoes elastic deformation due to its elastic potential energy, causing the conductive sheet 153 to move to its initial position and press against the panel, thus improving reliability.

[0082] This utility model also provides a stove, including the above-mentioned control device, wherein the PCB board 1 is used to light up the anti-dry burning indicator light 11 and start the buzzer 12 to issue visual and audible warnings, thereby achieving dual prompts and improving safety. Through the PCB board 1, digital tube 13 and button unit 15, the remaining time of the timer can be displayed, and the timer can be set, started and stopped, improving the user experience. In addition, the control device has a compact structure.

Claims

1. A control device, comprising a PCB board, characterized in that, The PCB board is provided with an anti-dry-burning indicator light, a buzzer, at least two digital tubes, and a button unit corresponding to each digital tube. The anti-dry-burning indicator light and the at least two digital tubes are arranged side by side along a first direction, and the anti-dry-burning indicator light is located between the at least two digital tubes. When dry burning is detected in the stove, the PCB board is used to light up the anti-dry-burning indicator light and activate the buzzer.

2. The control device as described in claim 1, characterized in that, The PCB board has a low power indicator light on its edge, and the low power indicator light and the anti-dry burning indicator light are spaced apart along a second direction perpendicular to the first direction; when the power of the stove is lower than a preset value, the PCB board is used to light up the low power indicator light.

3. The control device as described in claim 2, characterized in that, The button unit is located between the anti-dry burning indicator and the low battery indicator. The button unit includes a first button for inputting operation signals to the PCB board to start and end the timing, and a second button for inputting operation signals to the PCB board to set the timing time. The first button and the second button are arranged side by side along the first direction.

4. The control device as described in claim 2, characterized in that, It also includes a housing with an opening, the opening of which is detachably covered by a cover plate, the cover plate and the housing forming an accommodating cavity, and the PCB board being fixed to the accommodating cavity.

5. The control device as described in claim 4, characterized in that, The cover plate has light-transmitting holes for the light emitted by the corresponding indicator lights to pass through, corresponding to the anti-dry-burning indicator light and the low battery indicator light; the cover plate has a display window for the light emitted by the digital tube to pass through in the area corresponding to the digital tube.

6. The control device as described in claim 4, characterized in that, A panel is fixedly connected to the side of the cover plate away from the receiving cavity. At least one of the panel and the cover plate is provided with an adhesive layer. The panel is fixedly connected to the cover plate through the adhesive layer. The number of adhesive layers is at least two, and both adhesive layers extend along the first direction and are located on opposite sides of the cover plate in the second direction.

7. The control device as described in claim 6, characterized in that, The cover plate is recessed inward from the surface away from the PCB board to form a first recessed platform, which is used to avoid the adhesive layer.

8. The control device as described in claim 4, characterized in that, The edge of the cover plate is evenly distributed with a plurality of overflow holes for the flow of adhesive along the second direction. The area of ​​the cover plate corresponding to the plurality of overflow holes is provided with a second recess, which is used to define the flow area of ​​the adhesive.

9. The control device as described in claim 4, characterized in that, The inner wall of the housing is provided with support columns and hooks that abut against the upper and lower sides of the PCB board, which are used to limit the position of the PCB board relative to the housing along a third direction that is perpendicular to both the first and second directions.

10. A stove, characterized in that, Includes the control device as described in any one of claims 1 to 9.

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