Sensor mounting structure and range hood with same

Abstract

The utility model relates to the technical field of range hoods, and discloses a sensor mounting structure and a range hood with the sensor mounting structure, the sensor mounting structure comprises a sensor box, the sensor box is provided with a mounting cavity, the mounting cavity is communicated with external air, at least a first mounting area is arranged in the mounting cavity, and air entering the mounting cavity at least flows through the first mounting area; the damping seat is arranged in the first mounting area; the sensor electric control board is mounted on the damping seat; the methane sensor is mounted on the sensor electric control board; compared with the prior art, the sensor installation structure has the advantages that the methane sensor is installed on the sensor electric control board, the sensor electric control board is installed in the first installation area of the sensor box through the damping seat, the damping seat can play a role in protecting the methane sensor by damping the sensor electric control board, and the probability that the methane sensor is damaged when a range hood runs is reduced. The influence of the vibration of the smoke exhaust fan on the methane sensor reduces the failure probability of the methane sensor.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, specifically to a sensor mounting structure and a range hood having the same. Background Technology

[0002] When applied to range hoods, methane sensors assist in detecting gas leaks, ensuring user cooking safety. The methane sensor's detection head includes a base with several supports. Some supports have heating wires leading out, while others have concentration detection lines. These concentration detection lines connect to a semiconductor detection chip, which houses a heating element. The heating element is soldered to the heating wires. Both the heating wires and the concentration detection lines are very thin. When the methane sensor is used in a range hood, the exhaust fan vibrates during operation, causing physical stress on the methane sensor. Multi-directional vibration analysis revealed stress in the XYZ directions of the methane sensor module from the semiconductor detection chip, concentration detection lines, and heating wires. This stress caused the solder joints between the heating element and the heating wires to loosen and crack, ultimately rendering the methane sensor ineffective. Utility Model Content

[0003] The purpose of this utility model is to provide a sensor mounting structure and a smoke hood having the same, which is used to solve the above-mentioned technical problems.

[0004] A sensor mounting structure for a range hood, comprising:

[0005] The sensor box has a mounting cavity that is connected to the outside air. The mounting cavity has at least a first mounting area, and the air entering the mounting cavity flows through at least the first mounting area.

[0006] Vibration damping seat, the vibration damping seat is located in the first installation area;

[0007] The sensor control board is mounted on the vibration damping base.

[0008] Methane sensor, the methane sensor is mounted on the sensor control board.

[0009] According to one embodiment of the present invention, the shock absorber is U-shaped, and the U-shaped shock absorber has an upward-facing opening. The left and right side edges and the lower edge of the sensor control board are respectively connected to the corresponding sides of the U-shaped shock absorber.

[0010] According to one embodiment of the present invention, a first mounting groove is provided on the corresponding surfaces of the left and right sides of the shock absorber seat, and a second mounting groove is provided on the upper surface of the bottom edge of the shock absorber seat. The left and right ends of the second mounting groove are respectively connected to the first mounting groove on the corresponding side. The left and right side edges and the lower edge of the sensor control board are respectively installed in the first mounting groove and the second mounting groove. The first mounting groove and the second mounting groove are adapted to the thickness of the sensor control board.

[0011] According to one embodiment of the present invention, a buzzer is provided on the sensor control board, which is used to issue an early warning when the detection result of the methane sensor exceeds the standard.

[0012] According to one embodiment of the present invention, a carbon monoxide sensor is also provided on the sensor control board, which is used to detect the concentration of carbon monoxide in the air.

[0013] According to one embodiment of the present invention, it further includes a PM2.5 detector, which has an air intake side and an air exhaust side. A second installation area is also provided in the installation cavity. The PM2.5 detector is installed in the installation cavity. The part of the PM2.5 detector with the air intake side is located in the second installation area, and the part of the PM2.5 detector with the air exhaust side is located in the first installation area. The airflow in the first installation area and the second installation area is connected through the PM2.5 detector.

[0014] According to one embodiment of the present invention, it further includes a sealing member, which is disposed around the upper edge of the sensor box, and the sealing member is provided with at least one clearance opening aligned with the first mounting area and the second mounting area.

[0015] According to one embodiment of the present invention, the exhaust side of the PM2.5 detector is positioned facing the sensor control board.

[0016] A range hood, employing the aforementioned sensor mounting structure, includes a range hood body, the range hood body having an electrical control cavity, a sensor box fixedly connected to the top plate of the electrical control cavity, and a detection hole provided on the top plate of the electrical control cavity, the detection hole communicating with the mounting cavity of the sensor box.

[0017] According to one embodiment of the present invention, a support frame is provided inside the electrical control cavity, and a sensor box is installed between the support frame and the top plate of the electrical control cavity. An elastic element is provided between the sensor box and the support frame.

[0018] Compared with the prior art, the sensor assembly of this utility model has the following advantages:

[0019] In this invention, a methane sensor is mounted on a sensor control board. The sensor control board is mounted in the first mounting area of ​​the sensor box via a shock-absorbing mount. The shock-absorbing mount protects the methane sensor by damping the sensor control board, reducing the impact of the exhaust fan's vibration on the methane sensor during operation and lowering the probability of the methane sensor failure. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the sensor assembly of this utility model;

[0021] Figure 2 This is a schematic diagram of the sensor assembly of this utility model after the seal is removed;

[0022] Figure 3 This is an exploded view of the sensor assembly of this utility model;

[0023] Figure 4 A schematic diagram of the structure of a smoke hood having the sensor assembly of this utility model;

[0024] Figure 5 A cross-sectional view of a smoke hood having the sensor assembly of this utility model;

[0025] Figure 6 for Figure 5 Enlarged view of A in the middle;

[0026] Figure 7 The forces in the XYZ directions of the methane sensor were compared before and after the damping mount was installed.

[0027] In the diagram: 1. Sensor box, 11. First mounting area, 12. Second mounting area, 2. Vibration damping mount.

[0028] 3. Sensor control board, 4. Methane sensor, 5. Buzzer, 6. Carbon monoxide sensor, 7. PM2.5 detector, 8. Seal, 9. Main body of the smoke hood, 91. Detection hole, 92. Support frame, 93. Elastic component.

[0029] The implementation and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The following drawings will disclose several embodiments of this utility model. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit this utility model. That is, in some embodiments of this utility model, these practical details are not essential. In addition, for the sake of simplicity, some conventional structures and components will be shown in the drawings in a simple schematic manner.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the utility model. They are merely used to distinguish components or operations described with the same technical terms and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but only if they are feasible for those skilled in the art. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] To further understand the content, features, and effects of this utility model, the following embodiments are provided, and detailed descriptions are given below in conjunction with the accompanying drawings:

[0034] Please see Figures 1 to 3 This utility model discloses a sensor mounting structure. The sensor assembly disclosed in this utility model is used in a smoke hood, including a sensor box 1, a shock-absorbing base 2, a sensor control board 3, and a methane sensor 4. The sensor box 1 has a mounting cavity that communicates with the outside air. At least a first mounting area 11 is provided inside the mounting cavity, and the air entering the mounting cavity flows through at least the first mounting area 11. The shock-absorbing base 2 is located in the first mounting area 11. The sensor control board 3 is mounted on the shock-absorbing base 2. The methane sensor 4 is mounted on the sensor control board 3. In this sensor mounting structure, the methane sensor 4 is mounted on the sensor control board 3. The sensor control board 3 is mounted in the first mounting area 11 of the sensor box 1 via the shock-absorbing base 2. The shock-absorbing base 2 protects the methane sensor 4 by damping the sensor control board 3, reducing the impact of the exhaust fan vibration on the methane sensor 4 during smoke hood operation, and lowering the failure probability of the methane sensor 4.

[0035] The sensor assembly of this utility model has a shock-absorbing base 2 made of a material that can undergo elastic deformation, such as foam or shock-absorbing rubber.

[0036] In this invention, the sensor mounting structure includes a methane sensor 4 mounted on a sensor control board 3. The sensor control board 3 provides power to the methane sensor 4 and receives the detection results from the methane sensor 4. When applied to a range hood, the sensor box 1 is installed inside the range hood's electrical control chamber. Air from outside the electrical control chamber can enter the sensor box 1 and flow through the first mounting area 11. As it flows through the first mounting area 11, the outside air is detected by the methane sensor 4. The detection result of the methane sensor 4 represents the methane content in the air. When the methane sensor 4 detects that the methane content in the air exceeds the standard, it indicates a gas leak. At this time, the detection result of the methane sensor 4 is sent to the sensor control board 3, which is connected to the range hood's control board. The range hood can then issue a warning to remind the user.

[0037] Please see Figure 3 The sensor mounting structure of this utility model features a U-shaped shock absorber 2 with an upward-facing opening. The left, right, and lower edges of the sensor control board 3 are connected to the corresponding edges of the U-shaped shock absorber 2. When installing the sensor control board 3, it is installed from top to bottom through the opening of the shock absorber 2, so that the shock absorber 2 abuts against the left, right, and lower edges of the sensor control board 3, thus protecting it. When the sensor mounting structure is applied to a smoke machine, vibrations during transportation or installation are buffered by the shock absorber 2, preventing the methane sensor 4 mounted on the sensor control board 3 from being affected by vibration and avoiding failure of the methane sensor 4 due to vibration.

[0038] It is easy to see that vibration acceleration = vibration amplitude ω^2 / 9.81, ω=2πf, where f is the vibration frequency. It can be seen that the vibration acceleration is proportional to the vibration amplitude and the square of the vibration frequency. By reducing the vibration amplitude experienced by the sensor control board 3 during the operation of the smoke machine, the influence of vibration acceleration on the sensor control board 3 is reduced, thus reducing the physical stress in the XYZ directions at the weld joint and achieving a damping effect. Please refer to [link / reference]. Figure 7 , Figure 7 To compare the forces in the XYZ directions of the methane sensor before and after the installation of the vibration damping mount, by... Figure 7 It can be seen that after the sensor control board 3 is installed on the shock absorber 2, the physical stress at the weld point in the XYZ direction is reduced due to the vibration generated by the operation of the smoke machine.

[0039] Please see Figure 3In this invention, the sensor mounting structure has a first mounting groove on the corresponding surfaces of the left and right sides of the shock absorber 2, and a second mounting groove on the upper surface of the bottom edge of the shock absorber 2. The left and right ends of the second mounting groove are respectively connected to the corresponding first mounting grooves. The left, right, and lower edges of the sensor control board 3 are respectively installed in the first and second mounting grooves, and the thickness of the first and second mounting grooves is adapted to the thickness of the sensor control board 3. When the sensor control board 3 is installed in the shock absorber 2, its left, right, and lower sides are engaged in the first and second mounting grooves, making the sensor control board 3 more securely installed in the shock absorber 2.

[0040] Please see Figure 3 The sensor mounting structure of this utility model includes a buzzer 5 on the sensor control board 3. The buzzer 5 is used to issue an early warning when the detection result of the methane sensor 4 exceeds the standard. After the sensor mounting structure is applied to the flue gas hood, during the operation of the flue gas hood, the methane sensor 4 detects the methane concentration in the air to determine whether there is a gas leak. The methane sensor 4 transmits the detection information to the sensor control board 3. When the detected value exceeds the standard, the sensor control board 3 activates the buzzer 5 to sound an alarm, reminding the user to check the gas level.

[0041] Please see Figure 3 The sensor mounting structure of this invention includes a carbon monoxide sensor 6 on the sensor control board 3. The carbon monoxide sensor 6 detects the concentration of carbon monoxide in the air. When gas combustion is incomplete, the carbon monoxide content in the air increases. When the carbon monoxide content exceeds a certain value, it can affect human health. The carbon monoxide sensor 6 on the sensor control board 3 detects the carbon monoxide content in the air. When this sensor mounting structure is applied to a range hood, when air from outside the range hood enters the mounting cavity of the sensor box 1, it flows through at least the first mounting area 11. While flowing through the first mounting area 11, it is detected by both the methane sensor 4 and the carbon monoxide sensor 6. The methane sensor 4 can determine whether methane is present in the air of the kitchen, thus determining whether there is a gas leak. The carbon monoxide sensor 6 can determine whether carbon monoxide is present in the air of the kitchen, thus determining whether the gas is burning completely, ensuring cooking safety. Both the methane sensor 4 and the carbon monoxide sensor 6 transmit detection information to the sensor control board 3. When the detection value exceeds the limit, the sensor control board 3 activates the buzzer 5 to sound an alarm.

[0042] Please see Figure 2 and Figure 3The sensor mounting structure of this utility model also includes a PM2.5 detector 7, which has an intake side and an exhaust side. A second mounting area 12 is also provided within the mounting cavity. The PM2.5 detector 7 is installed within the mounting cavity. The portion of the PM2.5 detector 7 with the intake side is located within the second mounting area 12, and the portion with the exhaust side is located within the first mounting area 11. The airflow in the first mounting area 11 and the second mounting area 12 is connected through the PM2.5 detector 7. When the PM2.5 detector 7 is activated, outside air enters the second mounting area 12, is detected by the PM2.5 detector 7, and is then discharged from the exhaust side of the PM2.5 detector 7 to the first mounting area 11. During the airflow entering the first mounting area 11, it is detected by the methane sensor 3 and the carbon monoxide sensor 6, respectively. The PM2.5 detector 7 is used to detect the PM2.5 content in the air. This indicator is used to judge the purification effect of the range hood on cooking fumes, so that users can adjust the operating power of the range hood's exhaust fan according to the detection results, or the range hood's control module can automatically adjust the operating power of the range hood's exhaust fan according to the detection results of the PM2.5 detector 7.

[0043] Please see Figure 1 and Figure 3 The sensor mounting structure of this utility model also includes a sealing element 8, which is arranged around the upper edge of the sensor box 1. The sealing element 8 is provided with at least one clearance opening that is aligned with the first mounting area 11 and the second mounting area 12. When the sensor mounting structure is applied to a range hood, the sensor box 1 is installed on the top plate of the electronic control chamber of the range hood. The seal 8 is pressed between the top plate of the electronic control chamber and the upper edge of the sensor box 1. When the PM2.5 detector 7 is activated, the small fan inside the PM2.5 detector 7 draws air from the second mounting area 12, creating a negative pressure in the second mounting area 12. Air from outside the electronic control chamber enters the second mounting area 12 through the clearance port aligned with the second mounting area 12. The air drawn by the PM2.5 detector 7 is discharged into the first mounting area 11 through the exhaust side of the PM2.5 detector 7, creating a positive pressure in the first mounting area 11. As the air in the first mounting area 11 is discharged through the clearance port corresponding to the first mounting area 11, it flows through the methane sensor 4 and the carbon monoxide sensor 6 and is detected by the methane sensor 4 and the carbon monoxide sensor 6. The seal 8 is provided so that the first mounting area 11 and the second mounting area 12 of the sensor box 1 can only be connected through the gas from the PM2.5 detector 7.

[0044] Please see Figure 1 and Figure 2In the sensor mounting structure of this utility model, the exhaust side of the PM2.5 detector 7 is positioned facing the sensor control board 3. When the air detected by the PM2.5 detector 7 is discharged into the first installation area 11, it is directly blown onto the methane sensor 4 and the carbon monoxide sensor 6, which allows the methane sensor 4 and the carbon monoxide sensor 6 to provide rapid feedback on the external air quality.

[0045] Please see Figures 4 to 6 This utility model also discloses a range hood. The range hood uses the aforementioned sensor mounting structure and includes a range hood body 9. The range hood body 9 has an electrical control cavity, and a sensor box 1 is fixedly connected to the top plate of the electrical control cavity. The top plate of the electrical control cavity has a detection hole 91, which communicates with the mounting cavity of the sensor box 1. When the range hood has a PM2.5 detector 7, the mounting cavity of the sensor box 1 is divided into a second mounting area 12 and a first mounting area 11. One part of the detection hole 91 aligns with the second mounting area 12 as a detection air inlet, and the other part aligns with the first mounting area 11 as a detection exhaust outlet. When the PM2.5 detector 7 is activated, air from outside the electrical control chamber enters the second installation area 12 through the detection air inlet. It enters the PM2.5 detector 7 from the air inlet side and is detected. After being detected, it is discharged from the exhaust side of the PM2.5 detector 7 and enters the first installation area 11. When it is discharged from the first installation area 11, it is detected by the methane sensor 4 and the carbon monoxide sensor 6. When the methane and / or carbon monoxide exceed the standard, the buzzer 5 will sound an alarm.

[0046] Please see Figure 6 The present invention relates to a range hood, wherein a support frame 92 is provided inside the electrical control cavity, and a sensor box 1 is installed between the support frame 92 and the top plate of the electrical control cavity. An elastic element 93 is provided between the sensor box 1 and the support frame 92. The elastic element 93 is pressed between the sensor box 1 and the support frame 92, and the elastic element 93 provides shock absorption protection for the sensor box 1, reducing the vibration of the sensor box 1 during the transportation or installation of the range hood.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sensor mounting structure for a range hood, characterized in that, include: The sensor box (1) is provided with a mounting cavity, which is in communication with the outside air. The mounting cavity is provided with at least a first mounting area (11), and the air entering the mounting cavity flows through at least the first mounting area (11). Vibration damping seat (2), the vibration damping seat (2) is disposed in the first installation area (11); Sensor control board (3), which is mounted on the shock absorber seat (2); A methane sensor (4) is mounted on the sensor control board (3).

2. The sensor mounting structure according to claim 1, characterized in that, The shock absorber seat (2) is U-shaped, and the U-shaped shock absorber seat (2) has an upward opening. The left and right side edges and the lower edge of the sensor control board (3) are respectively connected to the corresponding sides of the U-shaped shock absorber seat (2).

3. The sensor mounting structure according to claim 2, characterized in that, The shock absorber (2) has a first mounting groove on the corresponding surface of its left and right sides. The shock absorber (2) has a second mounting groove on the upper surface of its bottom edge. The left and right ends of the second mounting groove are respectively connected to the first mounting groove on the corresponding side. The left and right sides and the lower edge of the sensor control board (3) are respectively installed in the first mounting groove and the second mounting groove. The first mounting groove and the second mounting groove are adapted to the thickness of the sensor control board (3).

4. The sensor mounting structure according to claim 1, characterized in that, The sensor control board (3) is equipped with a buzzer (5), which is used to issue an early warning when the detection result of the methane sensor (4) exceeds the standard.

5. The sensor mounting structure according to claim 1, characterized in that, The sensor control board (3) is also equipped with a carbon monoxide sensor (6), which is used to detect the concentration of carbon monoxide in the air.

6. The sensor mounting structure according to claim 1, characterized in that, It also includes a PM2.5 detector (7), which has an air intake side and an air exhaust side. The mounting cavity is also provided with a second mounting area (12). The PM2.5 detector (7) is installed in the mounting cavity. The part of the PM2.5 detector (7) with the air intake side is located in the second mounting area (12), and the part of the PM2.5 detector (7) with the air exhaust side is located in the first mounting area (11). The airflow in the first mounting area (11) and the second mounting area (12) is connected through the PM2.5 detector (7).

7. The sensor mounting structure according to claim 6, characterized in that, It also includes a sealing element (8) which is disposed around the upper edge of the sensor box (1) and has at least one clearance opening that is aligned with the first mounting area (11) and the second mounting area (12).

8. The sensor mounting structure according to claim 6, characterized in that, The exhaust side of the PM2.5 detector (7) is positioned facing the sensor control board (3).

9. A range hood, employing the sensor mounting structure according to any one of claims 1 to 8, characterized in that, The device includes a main body (9) of a range hood, which has an electrical control cavity. The sensor box (1) is fixedly connected to the top plate of the electrical control cavity. The top plate of the electrical control cavity is provided with a detection hole (91), which communicates with the mounting cavity of the sensor box (1).

10. The range hood according to claim 9, characterized in that, The electrical control cavity is provided with a support frame (92), and the sensor box (1) is installed between the support frame (92) and the top plate of the electrical control cavity. An elastic element (93) is provided between the sensor box (1) and the support frame (92).

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