Circuit board structure for oil smoke purifier

By designing protective covers and modular components in the fume purifier, real-time monitoring of circuit temperature and activation of protective measures, combined with filtering circuits and heat dissipation slots, the problems of electromagnetic interference and poor heat dissipation in the fume environment are solved, improving the stability and safety of the circuit signal board.

CN223798403UActive Publication Date: 2026-01-13BEIJING HUAQING DASI ENVIRONMENTAL PROTECTION TECH DEV CO LTD
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Patent Information

Application Number
CN202423181500.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2026-01-13
Estimated Expiration
2034-12-23

AI Technical Summary

Technical Problem

Electromagnetic interference and poor heat dissipation exist in oil fume environments, affecting the normal operation and lifespan of circuit signal boards.

Method used

A circuit board structure including a protective sleeve was designed, which contains modular components and a temperature sensing block. By monitoring the circuit temperature in real time and activating protective measures, combined with a filtering circuit and heat sink, electromagnetic interference and overheating risks are reduced.

Benefits of technology

It improves the stability and safety of the circuit signal board, prevents overheating damage, ensures power supply stability and reliability, and enhances the practicality and convenience of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil smoke purifiers, in particular to a circuit board structure for an oil smoke purifier, which comprises a protective sleeve, a module assembly is arranged in an inner cavity of the protective sleeve, the module assembly comprises an elastic cushion I, the elastic cushion I is fixedly connected to the inner wall of the protective sleeve, and the elastic cushion II is fixedly connected to the inner wall of the protective sleeve. A second elastic pad is fixedly connected to the side, away from the first elastic pad, of the inner wall of the protective sleeve, a containing groove is formed in an inner cavity of the protective sleeve, a circuit signal board is movably connected to one side of the containing groove, and a temperature sensing block is fixedly connected to the top of the circuit signal board. According to the circuit board structure for the oil smoke purifier, through the installation of the module assembly, when the equipment is used, the control panel monitors the temperature of the circuit signal board in real time through the temperature sensor through the cooperation of the temperature sensing block, the control panel and other parts, and protection measures are started when the temperature exceeds a set threshold value; the circuit signal board is prevented from being damaged due to overheating, and the safety of the device is improved.
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Description

Technical Field

[0001] This utility model relates to the field of oil fume purifier technology, specifically to a circuit board structure for an oil fume purifier. Background Technology

[0002] The field of kitchen fume purifier technology continues to innovate and develop, from mechanical filtration to electrostatic dust removal, and then to intelligent sensing and remote control. The technology is becoming increasingly mature, and by efficiently purifying kitchen fumes and exhaust gases, it reduces environmental pollution and protects human health. In the future, with the integration of technologies such as the Internet of Things and big data, kitchen fume purifiers will become more intelligent and efficient, providing strong support for a clean environment.

[0003] During operation, the fume purification device may experience overvoltage or overcurrent in the circuit due to certain reasons (such as load changes, abnormal power supply, etc.). These phenomena may damage the circuit signal board. In addition, there may be a lot of electromagnetic interference in the fume environment, which will affect the normal operation of the circuit signal board.

[0004] In a fume-filled environment, circuit signal boards are easily corroded by pollutants such as fumes and moisture, affecting their performance. Furthermore, in such an environment, circuit signal boards are prone to overheating due to poor heat dissipation, which in turn affects their performance and lifespan. Utility Model Content

[0005] The purpose of this utility model is to provide a circuit board structure for an oil fume purifier, so as to solve the problems mentioned in the background art, which are that there may be a lot of electromagnetic interference in the oil fume environment, which affects the normal operation of the circuit signal board and that poor heat dissipation in the oil fume environment affects performance and lifespan. To achieve the above objectives, this utility model provides the following technical solution: a circuit board structure for an oil fume purifier, comprising a protective sleeve, characterized in that: a module assembly is provided in the inner cavity of the protective sleeve, the module assembly comprising an elastic pad one, the elastic pad one being fixedly connected to the inner wall of the protective sleeve, an elastic pad two being fixedly connected to the side of the inner wall of the protective sleeve away from the elastic pad one, a placement groove is provided in the inner cavity of the protective sleeve, a circuit signal board is movably connected to one side of the placement groove, a temperature sensing block is fixedly connected to the top of the circuit signal board, an alarm module is fixedly connected to one side of the top of the circuit signal board, a control panel is fixedly connected to one side of the top of the circuit signal board, the control panel is electrically connected to the temperature sensing block, the control panel is electrically connected to the alarm module, and a protective component is provided at the bottom of the protective sleeve. By installing the module assembly, when using the device, through the cooperation between the temperature sensing block and the control panel and other components, the control panel monitors the temperature of the circuit signal board in real time through a temperature sensor, and activates protective measures when the temperature exceeds a set threshold, preventing the circuit signal board from being damaged due to overheating, thereby improving the safety of the device.

[0006] More preferably, the protection component includes a heat dissipation groove, which is formed at the bottom of the protective sleeve. A heat sink is movably connected to the side of the heat dissipation groove away from the protective sleeve. By installing the module component, when using the device, the stability and reliability of the power supply are ensured through the cooperation between the filter circuit and the power output terminal and other components, providing a stable DC voltage output for the circuit signal board, effectively reducing the impact of external electromagnetic interference on the circuit signal board, and improving the stability and reliability of the circuit signal board.

[0007] More preferably, a signal output terminal is fixedly connected to one side of the protective sleeve, and a filter circuit is fixedly connected to one side of the protective sleeve. By installing the signal output terminal, when using the device, the circuit signal board is prevented from transmitting signals through exposed wires in harsh environments, thus improving the practicality of the device.

[0008] More preferably, a power output terminal is fixedly connected to the top of the filter circuit, and a front cover is movably connected to one side of the top of the protective cover via a hinge. By installing the front cover, the protective cover or circuit signal board can be easily replaced when using the device, thus improving the convenience of the device.

[0009] In a further preferred embodiment, the side of the protective cover away from the front cover is hinged to a rear cover, and the side of the protective cover away from the power output terminal is threaded with a fixing bolt. By installing the rear cover, it is convenient to replace old heat sinks during use, thereby improving the practicality of the device.

[0010] More preferably, the fixing bolt is threadedly connected to the extraction slot, and the outer surface of the rear cover plate is adhesively bonded with composite glue. By installing the fixing bolt, the device can be fixed in place when in use, thus improving the stability of the device.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] In this invention, by installing modular components, when using the device, the temperature sensing block and control panel work together to enable the control panel to monitor the temperature of the circuit signal board in real time through the temperature sensor, and activate protection measures when the temperature exceeds a set threshold to prevent the circuit signal board from being damaged due to overheating, thereby improving the safety of the device.

[0013] In this invention, by installing modular components, the stability and reliability of the power supply are ensured through the cooperation between the filter circuit and the power output terminal and other components when using the device. This provides a stable DC voltage output for the circuit signal board, effectively reducing the impact of external electromagnetic interference on the circuit signal board and improving its stability and reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 2 This is a top-view three-dimensional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of a three-dimensional partial structure of the present invention. Figure 1 ;

[0017] Figure 4 This is a schematic diagram of a three-dimensional partial structure of the present invention. Figure 2 ;

[0018] Figure 5 This is a side view of the three-dimensional structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0020] In the diagram: 1. Protective cover; 2. Module assembly; 201. Elastic pad one; 202. Elastic pad two; 203. Placement slot; 204. Circuit signal board; 205. Temperature sensing block; 206. Alarm module; 207. Control panel; 208. Removal slot; 3. Protection component; 301. Heat dissipation slot; 302. Heat sink; 303. Signal output terminal; 304. Filtering circuit; 305. Power output terminal; 4. Front cover plate; 5. Rear cover plate; 6. Fixing bolts; 7. Composite adhesive. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-6This utility model provides a technical solution: a circuit board structure for an oil fume purifier, including a protective sleeve 1. A module assembly 2 is provided inside the protective sleeve 1. The module assembly 2 includes an elastic pad 201, which is fixedly connected to the inner wall of the protective sleeve 1. An elastic pad 202 is fixedly connected to the side of the inner wall of the protective sleeve 1 away from the elastic pad 201. A placement groove 203 is provided inside the protective sleeve 1. A circuit signal board 204 is movably connected to one side of the placement groove 203. A temperature sensing block 205 is fixedly connected to the top of the circuit signal board 204. An alarm module 206 is fixedly connected to one side of the top of the circuit signal board 204. A control panel 207 is fixedly connected to one side of the top of the circuit signal board 204. The power output terminal 305 first filters the power entering the circuit signal board 204. The main function of the filter circuit 304 is to minimize pulsating DC current. The AC component of the voltage is retained while the DC component is preserved, which reduces the output voltage ripple coefficient and makes the waveform smoother. The control panel 207 monitors the temperature of the circuit signal board 204 in real time through the temperature sensing block 205. When the temperature exceeds the set threshold, the control panel 207 will activate the overheat protection mechanism, the alarm module 206 will sound an alarm, and the control panel 207 will cut off the power. When the device needs to be replaced, you can observe whether the device is completely damaged. If the circuit signal board 204 is damaged, you can open the front cover 4 and take out the fixing bolt 6 on one side of the take-out slot 208, and move the elastic pad 201 to replace the damaged circuit signal board 204. If the protective cover 1 is damaged, you can separate the wires at the connection between the protective cover 1 and the signal output terminal 303 of the circuit signal board 204, and at the connection between the filter circuit 304 and the power output terminal 305, and replace the protective cover 1.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the control panel 207 is electrically connected to the temperature sensor block 205 and the alarm module 206. The bottom of the protective cover 1 is provided with a protective component 3, which includes a heat dissipation groove 301. The heat dissipation groove 301 is opened at the bottom of the protective cover 1. A heat sink 302 is movably connected to the side of the heat dissipation groove 301 away from the protective cover 1. A signal output terminal 303 is fixedly connected to one side of the protective cover 1. When using the device, the device is placed in the electronic component placement area of ​​the fume purifier, the power output terminal 305 of the device is connected to the power cord, and the signal output terminal 303 is connected to the data transmission line.

[0024] In this embodiment, as Figure 4 , Figure 5 and Figure 6As shown, a filter circuit 304 is fixedly connected to one side of the protective sleeve 1, and a power output terminal 305 is fixedly connected to the top of the filter circuit 304. A front cover plate 4 is movably connected to one side of the top of the protective sleeve 1 via a hinge, and a rear cover plate 5 is movably connected to the side of the protective sleeve 1 away from the front cover plate 4 via a hinge. A fixing bolt 6 is threadedly connected to the side of the protective sleeve 1 away from the power output terminal 305, and the fixing bolt 6 is threadedly connected to the extraction slot 208. The outer surface of the rear cover plate 5 is adhesively connected with composite glue 7. When using the device, the rear cover plate 5 is made of brass material with good thermal conductivity and is glued to the inside of the fume purifier with composite glue 7 to prevent slippage. The heat sink 302 inside can be replaced by opening the rear cover plate 5. When the device is installed, the front cover plate 4 and the rear cover plate 5 need to be closed.

[0025] The method of use and advantages of this utility model: This oil fume purifier uses a circuit board structure, and its working process is as follows:

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, when using this device, place it in the electronic component storage area of ​​the fume purifier. Connect the power output terminal 305 of the device to the power cord and the signal output terminal 303 to the data transmission line. The power output terminal 305 first filters the power entering the circuit signal board 204. The main function of the filter circuit 304 is to minimize the AC component in the pulsating DC voltage, retaining its DC component, thereby reducing the output voltage ripple coefficient and making the waveform smoother. The control panel 207 monitors the temperature of the circuit signal board 204 in real time through the temperature sensor 205. When the temperature exceeds the set threshold, the control panel 207 will activate the overheat protection mechanism, the alarm module 206 will sound an alarm, and the control panel 207 will cut off the power. This device requires... When replacing the device, observe whether it is completely damaged. If the circuit signal board 204 is damaged, open the front cover 4 and remove the fixing bolt 6 on one side of the extraction slot 208. Move the elastic pad 201 to replace the damaged circuit signal board 204. If the protective cover 1 is damaged, separate the wires at the connection between the protective cover 1 and the signal output terminal 303 of the circuit signal board 204, and at the connection between the filter circuit 304 and the power output terminal 305, and replace the protective cover 1. When using the device, the rear cover 5 is made of brass with good thermal conductivity and is glued to the inside of the fume purifier with composite adhesive 7 to prevent slippage. The heat sink 302 inside can be replaced by opening the rear cover 5. When the device is installed, the front cover 4 and the rear cover 5 need to be closed.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A circuit board structure for an oil fume purifier, comprising a protective sleeve (1), wherein a module assembly (2) is provided in the inner cavity of the protective sleeve (1), the module assembly (2) comprising an elastic pad one (201), the elastic pad one (201) being fixedly connected to the inner wall of the protective sleeve (1), an elastic pad two (202) being fixedly connected to the side of the inner wall of the protective sleeve (1) away from the elastic pad one (201), and a placement groove (203) being provided in the inner cavity of the protective sleeve (1), wherein a circuit signal board is movably connected to one side of the placement groove. (204) A temperature sensing block (205) is fixedly connected to the top of the circuit signal board (204). An alarm module (206) is fixedly connected to one side of the top of the circuit signal board (204). A control panel (207) is fixedly connected to one side of the top of the circuit signal board (204). The control panel (207) is electrically connected to the temperature sensing block (205). The control panel (207) is electrically connected to the alarm module (206). A protective component (3) is provided at the bottom of the protective sleeve (1).

2. The circuit board structure for an oil fume purifier according to claim 1, characterized in that: The protective component (3) includes a heat dissipation groove (301), which is located at the bottom of the protective sleeve (1). A heat sink (302) is movably connected to the side of the heat dissipation groove (301) away from the protective sleeve (1).

3. The circuit board structure for an oil fume purifier according to claim 2, characterized in that: A signal output terminal (303) is fixedly connected to one side of the protective sleeve (1), and a filter circuit (304) is fixedly connected to one side of the protective sleeve (1).

4. The circuit board structure for an oil fume purifier according to claim 3, characterized in that: The top of the filter circuit (304) is fixedly connected to a power output terminal (305), and the top side of the protective sleeve (1) is movably connected to a front cover plate (4) via a hinge.

5. The circuit board structure for an oil fume purifier according to claim 4, characterized in that: The protective sleeve (1) is connected to the rear cover plate (5) by a hinge on the side away from the front cover plate (4), and the protective sleeve (1) is connected to the fixing bolt (6) by a thread on the side away from the power output terminal (305).

6. The circuit board structure for an oil fume purifier according to claim 5, characterized in that: The fixing bolt (6) is threadedly connected to the extraction slot (208), and the outer surface of the rear cover plate (5) is adhesively connected with composite glue (7).