Deodorizer control circuit and deodorizer

Abstract

The utility model provides a kind of deodorizer control circuit, including power supply module, drive module, detection module and control module, drive module has external interface, external device includes ozone generator, drive module is connected with power supply module and drive module is configured as: the loop between power supply module and external interface can be selectively connected or cut off;Detection module is used to detect whether vibration occurs and generates vibration signal when it detects that vibration occurs;Control module is connected with detection module and drive module, and according to whether vibration signal is sent to it by detection module, control drive module connects or cut off the loop between power supply module and external interface.The deodorizer control circuit of the utility model judges whether door opening action occurs by vibration detection, so that the judgment is reliable and accurate, and the control of ozone generator is also more reliable and accurate, effectively avoiding the risk of human contact with ozone.The utility model further provides a kind of deodorizer.

Description

Technical Field

[0001] This utility model relates to the field of deodorizers, and in particular to a deodorizer control circuit and a deodorizer. Background Technology

[0002] Ozone gas has strong oxidizing and catalytic effects, which can denature the proteins of viruses and bacteria and reduce the activity of nucleic acids and enzymes, thus achieving excellent disinfection, deodorization and sterilization effects. Moreover, ozone is a broad-spectrum bactericide, which has a strong killing effect on various bacteria and viruses, and leaves no residual pollution. Therefore, it is widely used in the food industry for disinfection, deodorization and mold prevention and preservation.

[0003] Refrigerator deodorization technologies are mainly divided into two routes: physical adsorption (activated carbon) and chemical decomposition (ozone). Among them, ozone deodorizers generate ozone molecules through high-voltage discharge, which can decompose odor-causing organic matter and sterilize, extend the shelf life of fruits and vegetables, and decompose pesticide residues.

[0004] Traditional refrigerator deodorizers often use timed or manually controlled ozone generators, which suffer from low sterilization efficiency and high energy consumption. To address these issues, some products use magnetic door switches to detect the refrigerator door's status to activate and deactivate the ozone generator, but this is complex to install and susceptible to interference from metal. Other products use infrared sensors, but these are highly sensitive to ambient temperature. Still others use photosensitive sensors, but these sensors can be obstructed by food, leading to inaccurate detection. Inaccurate detection of the refrigerator door's status can cause unreliable activation and deactivation of the ozone generator, resulting in ozone leakage and potential direct exposure to ozone. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this invention provides a deodorizer control circuit that uses vibration detection to determine whether a door has opened, making the judgment more reasonable, reliable, and accurate, less affected by environmental factors, and consequently providing more reliable and precise control over the ozone generator, effectively avoiding the risk of human exposure to ozone. This invention also provides a deodorizer.

[0006] To achieve the above objectives, the present invention employs the following technical solution:

[0007] A deodorizer control circuit for driving an ozone generator includes:

[0008] Power supply module, the power supply module is used to provide electrical energy;

[0009] A drive module having an external interface for accessing external devices, including the ozone generator, the drive module being connected to the power supply module and configured to selectively connect or disconnect the circuit between the power supply module and the external interface;

[0010] The detection module is used to detect whether vibration occurs and generate a vibration signal when it detects vibration.

[0011] The system also includes a control module, which is connected to the detection module and the drive module, and controls the drive module to connect or disconnect the circuit between the power supply module and the external interface based on whether the detection module sends a vibration signal to it.

[0012] When the control module receives a vibration signal, it controls the drive module to cut off the circuit between the power supply module and the external interface.

[0013] Using the above technical solution, the ozone generator is connected to the drive module through the external interface; the user can place the deodorizer control circuit with the ozone generator installed inside the refrigerator. Under normal circumstances, the refrigerator will not vibrate, so the detection module does not send a vibration signal to the control module. The control module controls the drive module to drive the ozone generator to work according to the preset working mode to achieve sterilization and deodorization effects.

[0014] When a user opens the refrigerator door, the refrigerator vibrates. The detection module detects the vibration and sends a vibration signal to the control module. The control module controls the drive module to cut off the circuit between the power supply module and the external interface, and the ozone generator stops working to avoid the risk of human exposure to ozone. The control module controls the drive module to reconnect the circuit between the power supply module and the external interface. Vibration detection can still be used, or time control can be used, or a light sensor can be added to detect brightness, or a combination of the above.

[0015] The detection module of the above technical solution determines whether a door opening action has occurred by detecting vibration, making the judgment more reasonable, reliable and accurate, and less affected by environmental factors;

[0016] Specifically, the control module can be a programmable controller, such as a microcontroller, or it can be built using logic elements and computing elements.

[0017] Furthermore, the drive module includes a first controllable switch, the positive power supply terminal of the power supply module is connected to the external positive terminal of the external interface, the negative power supply terminal of the power supply module is connected to a reference ground, the external negative terminal of the external interface is connected to the first switch terminal of the first controllable switch, the second switch terminal of the first controllable switch is connected to the reference ground, and the deodorization control terminal of the control module is connected to the first switch control terminal of the first controllable switch to selectively control the connection between the first switch terminal and the second switch terminal.

[0018] By adopting the above technical solution, the driving module becomes more reasonable; when the deodorization control terminal of the control module controls the first and second switching terminals of the first controllable switch to disconnect, the circuit between the power supply module and the external interface is disconnected; when the deodorization control terminal of the control module controls the first and second switching terminals of the first controllable switch to connect, the circuit between the power supply module and the external interface is connected.

[0019] Furthermore, the external interface includes an ozone generator external interface for connecting the ozone generator to the drive module.

[0020] By adopting the above technical solution, the external interface becomes more reasonable; the external interface of the ozone generator can connect to the ozone generator.

[0021] Furthermore, the external interface also includes a fan external interface for connecting the fan to the drive module.

[0022] By adopting the above technical solution, the external interface becomes more reasonable; the fan external interface can connect the fan, and the operation of the fan can accelerate the diffusion of ozone and improve the sterilization and deodorization effect; and the above structure enables the fan and the ozone generator to work synchronously, that is, both can work and stop synchronously.

[0023] Furthermore, the first controllable switch is configured such that when its first switch control terminal is at a high level, it controls the first switch terminal and the second switch terminal to connect, and when its first switch control terminal is at a non-high level, it controls the first switch terminal and the second switch terminal to disconnect.

[0024] By adopting the above technical solution, the first controllable switch becomes more reasonable.

[0025] Furthermore, the first controllable switch is configured as a MOSFET, and the MOSFET is an N-type MOSFET. The drain (D) of the MOSFET is formed as the first switching terminal of the first controllable switch, the source (S) of the MOSFET is formed as the second switching terminal of the first controllable switch, and the gate (G) of the MOSFET is formed as the first switching control terminal of the first controllable switch.

[0026] By adopting the above technical solution, the first controllable switch becomes more reasonable.

[0027] Furthermore, the driving module also includes an eighth resistor and a ninth resistor. One end of the ninth resistor is connected to the first switch control terminal, and the other end of the ninth resistor is connected to a reference ground. The eighth resistor is connected in series between the first switch terminal of the first controllable switch and the deodorization control terminal of the control module.

[0028] The above technical solution makes the driving module more reasonable.

[0029] Furthermore, the driving module also includes a third diode, the anode of which is connected to the external negative terminal of the external interface, and the cathode of which is connected to the external positive terminal of the external interface.

[0030] The above technical solution makes the driving module more reasonable.

[0031] Furthermore, the detection module includes a vibration sensor and a thirteenth resistor. The vibration sensor has a first vibration sensor switch terminal and a second vibration sensor switch terminal, and the vibration sensor is configured such that: when it detects vibration, the first vibration sensor switch terminal and the second vibration sensor switch terminal are connected; when it does not detect vibration, the first vibration sensor switch terminal and the second vibration sensor switch terminal are disconnected. One end of the thirteenth resistor is connected to the positive power supply terminal of the power supply module, and the other end of the thirteenth resistor is connected to the first vibration sensor switch terminal. The second vibration sensor switch terminal is connected to a reference ground. The end of the thirteenth resistor used to connect to the first vibration sensor switch terminal forms the detection signal output terminal of the detection module.

[0032] The above technical solution makes the detection module more reasonable; when the vibration sensor does not detect vibration, the first vibration sensor switch terminal and the second vibration sensor switch terminal are disconnected, and the detection signal output terminal is pulled high to a high level, that is, a high level is output to the outside;

[0033] When the vibration sensor detects a vibration, the first vibration sensor switch terminal and the second vibration sensor switch terminal are connected, and the detection signal output terminal is pulled low to a low level, that is, a low level is output to the outside. This low level signal is the vibration signal.

[0034] Furthermore, the vibration sensor is an omnidirectional vibration sensor.

[0035] By adopting the above technical solution, the vibration sensor becomes more reasonable and its vibration detection becomes more accurate.

[0036] Furthermore, a fourteenth resistor is connected in series between the thirteenth resistor and the switch terminal of the first vibration sensor.

[0037] The above technical solution makes the detection module more reasonable.

[0038] Furthermore, the detection module includes a sixth capacitor, one end of which is connected to one end of the thirteenth resistor, and the other end of which is connected to the other end of the thirteenth resistor.

[0039] The above technical solution makes the detection module more reasonable.

[0040] Furthermore, the positive terminal of the power supply module is connected to the thirteenth resistor through a power processing network.

[0041] By adopting the above technical solution, the connection between the power supply module and the detection module becomes more reasonable.

[0042] Furthermore, the power processing network includes a twelfth resistor and a fifth capacitor. The positive power supply terminal of the power supply module is connected to one end of the twelfth resistor, the other end of the twelfth resistor is connected to one end of the fifth capacitor, the other end of the fifth capacitor is connected to a reference ground, and the connection point between the twelfth resistor and the fifth capacitor is connected to the thirteenth resistor.

[0043] By adopting the above technical solution, the power processing network becomes more reasonable, the twelfth resistor can play a current limiting role, and the fifth capacitor can play a filtering role, making the power supply module provide more stable and reliable power.

[0044] Furthermore, the power supply module uses a storage battery.

[0045] The above technical solution makes the power supply module more reasonable. Since the circuit needs to be placed inside the refrigerator, and there is no external power supply interface inside the refrigerator, the power supply module uses a battery to ensure the normal operation of the circuit and is more suitable for its working environment, making it adaptable to most working environments.

[0046] Furthermore, the deodorizer control circuit includes a charging management module, which is located between the external power interface and the power supply module to control the charging process of the external power interface charging the power supply module.

[0047] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable, the charging management module can control the power supply process of the power supply module, ensuring the reliability and safety of charging quality, and extending the service life of the battery.

[0048] Furthermore, the control module is connected to the charging management module to obtain charging information and controls the drive module according to the obtained charging information. When the charging information obtained by the control module indicates a charging state, the control module controls the drive module to disconnect the circuit between the power supply module and the external interface.

[0049] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable. When the user charges the power supply module, the control module controls the drive module to cut off the circuit between the power supply module and the external interface, so that the power supply path of the ozone generator is automatically switched, eliminating the risk of ozone leakage caused by accidental start-up and ensuring user safety.

[0050] Furthermore, the charging management module has a charging status indicator terminal for indicating whether it is in a charging state and a charging completion indicator terminal for indicating whether charging is complete. The control module is connected to the charging status indicator terminal and the charging completion indicator terminal to obtain charging information.

[0051] The above technical solution makes the charging management module more reasonable.

[0052] Furthermore, the charging status indicator terminal of the charging management module outputs a signal to the control module through a second resistor, and the charging completion indicator terminal of the charging management module outputs a signal to the control module through a third resistor.

[0053] By adopting the above technical solution, the connection between the charging management module and the control module becomes more reasonable.

[0054] Furthermore, the external power interface has an external power positive connection terminal and an external power negative connection terminal. The external power positive connection terminal of the external power interface is connected to the power input terminal of the charging management module, and the external power negative connection terminal of the external power interface is connected to the reference ground.

[0055] The above technical solution makes the external power interface more reasonable.

[0056] Furthermore, a first diode is connected in series between the positive terminal of the external power supply of the external power interface and the power input terminal of the charging management module, and the anode of the first diode is connected to the positive terminal of the external power supply of the external power interface, and the cathode of the first diode is connected to the power input terminal of the charging management module.

[0057] By adopting the above technical solution, the connection between the external power interface and the charging management module becomes more reasonable.

[0058] Furthermore, an input spike protection network is connected to the power input terminal of the charging management module. The input spike protection network includes a first resistor and a first capacitor. One end of the first resistor is connected to the power input terminal of the charging management module, the other end of the first resistor is connected to one end of the first capacitor, and the other end of the first capacitor is connected to a reference ground.

[0059] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable, and the input spike protection network can ensure stable, reliable, and safe charging.

[0060] Furthermore, the charging management module uses the TC4056A chip.

[0061] The above technical solution makes the charging management module more reasonable.

[0062] Furthermore, the external power interface is a USB interface.

[0063] The above technical solution makes the external power interface more reasonable.

[0064] Furthermore, the deodorizer control circuit includes an operation module, which is connected to the control module, and the control module is used to receive physical operations from the user and send corresponding operation instructions to the control module.

[0065] By adopting the above technical solution, the deodorizer control circuit is made more reasonable. Users can operate the operation module to send operation commands to the control module, thereby realizing operations such as start / stop and switching of working modes.

[0066] Furthermore, the control module is configured such that, under normal operating conditions, the control module controls the drive module to intermittently connect and disconnect the circuit between the power supply module and the external interface.

[0067] By adopting the above technical solution, the control module becomes more reasonable. The control module controls the drive module to intermittently connect and disconnect the circuit between the power supply module and the external interface, thereby realizing the intermittent operation of the ozone generator. The above technical solution can extend the standby time while ensuring the sterilization and deodorization effects.

[0068] Furthermore, the control module is equipped with multiple working positions, each corresponding to a different interval time parameter; the interval time parameter includes working duration and / or stopping duration; the user selects a working position by operating the operation module, and the control module controls the drive module according to the corresponding interval time parameter of the working position.

[0069] By adopting the above technical solution, the control module becomes more reasonable; users can select different gears according to their own needs. The gears can have the same working time and different stopping time, different working time and the same stopping time, or different working time and different stopping time.

[0070] The above technical solution enables the deodorizer control circuit to adapt to more usage scenarios and is more practical.

[0071] Furthermore, the operation module is configured as an operation switch, with one end of the operation switch connected to the control module and the other end connected to a reference ground. The operation switch receives physical operations from the user to connect or disconnect the connection at both ends.

[0072] By adopting the above technical solution, the operation switch is made more reasonable. When the user does not press the operation switch, the two ends of the operation switch are disconnected and the operation switch does not send a signal to the control module; when the user presses the operation switch, the two ends of the operation switch are connected and the operation switch sends a low-level signal to the control module.

[0073] Specifically, users can operate the operation switch in different ways to execute different operation commands, such as short press, long-short press, and continuous press.

[0074] Furthermore, the deodorizer control circuit includes a gear indicator module for indicating the currently selected working gear, and the gear indicator module is connected to the control module.

[0075] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable; the gear indicator module enables the user to clearly understand the currently selected gear.

[0076] Normally, the gear indicator module is in a non-working state. When the user opens the door, the detection module detects the vibration, and the control module controls the gear indicator module to work and indicate the currently selected working gear. After a period of time, it switches back to a non-working state. The above technical solution can save electricity.

[0077] Furthermore, the gear position indicator module includes gear position indicator lights, and the number of gear position indicator lights matches the number of working gears set by the control module and corresponds one-to-one. The anode of each gear position indicator light is connected to the positive power supply terminal of the power supply module, and the cathode of each gear position indicator light is connected to the corresponding gear position indicator control terminal of the control module.

[0078] By adopting the above technical solution, the gear position indicator module becomes more reasonable. When the gear position indicator module is working, the gear position indicator light corresponding to the selected gear position illuminates.

[0079] Specifically, the control module has three gear positions, and correspondingly, there are three gear position indicator lights.

[0080] Furthermore, the positive terminal of the power supply module is connected to the anode of each of the gear indicator lights via a power processing network.

[0081] By adopting the above technical solution, the connection between the power supply module and the gear indicator light becomes more reasonable.

[0082] Furthermore, the power processing network includes a twelfth resistor and a fifth capacitor. The positive power supply terminal of the power supply module is connected to one end of the twelfth resistor, the other end of the twelfth resistor is connected to one end of the fifth capacitor, the other end of the fifth capacitor is connected to a reference ground, and the connection point between the twelfth resistor and the fifth capacitor is connected to the anode of each of the gear indicator lights.

[0083] By adopting the above technical solution, the power processing network becomes more reasonable, the twelfth resistor can play a current limiting role, and the fifth capacitor can play a filtering role, making the power supply module provide more stable and reliable power.

[0084] Furthermore, the power processing network is connected to the anode of each of the gear indicator lights via a sixteenth resistor.

[0085] By adopting the above technical solution, the connection between the power processing network and the gear indicator light is made more reasonable.

[0086] Furthermore, the power supply module uses a storage battery;

[0087] The control module is connected to the power supply module to obtain the power status of the power supply module. The control module controls the drive module according to the obtained power status of the power supply module. When the control module obtains that the power status of the power supply module is lower than a preset power level, the control module controls the drive module to cut off the loop between the power supply module and the external interface.

[0088] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable. When the control module detects that the power supply module's power level is lower than the preset power level, the control module controls the drive module to cut off the circuit between the power supply module and the external interface. That is, when the power supply module's power level is lower than the preset power level, the ozone generator stops, preventing the power supply module from over-discharging and also preventing the ozone generator from operating unstablely, thus extending the circuit's service life.

[0089] Furthermore, the control module is connected to the positive terminal of the power supply module to obtain its power status.

[0090] By adopting the above technical solution, the control module obtains the power of the power supply module more reasonably.

[0091] Furthermore, a fifteenth resistor is connected in series between the control module and the positive power supply terminal of the power supply module.

[0092] By adopting the above technical solution, the connection between the control module and the power supply module becomes more reasonable.

[0093] Furthermore, the deodorizer control circuit includes a battery status indicator module for indicating battery status. The battery status indicator module includes a first battery status indicator light and a second battery status indicator light. The anodes of the first battery status indicator light and the second battery status indicator light are respectively connected to the battery status indicator control terminal corresponding to the control module, and the cathodes of the first battery status indicator light and the second battery status indicator light are connected to a reference ground.

[0094] Specifically, the first battery status indicator light and the second battery status indicator light emit different colors of light; generally, the first battery status indicator light emits green light and the second battery status indicator light emits red light.

[0095] The above technical solution makes the deodorizer control circuit more reasonable; users can understand the current battery status by observing the status of the battery status indicator module, such as whether the power is too low or whether it is charging.

[0096] Normally, the battery status indicator module is in a non-working state. When the user opens the door, the detection module detects the vibration, and the control module controls the battery status indicator module to work and indicate the current battery status. After a period of time, it switches back to a non-working state. The above technical solution can save electricity.

[0097] During charging, the battery status indicator module can operate for an extended period of time to remind the user whether charging is complete.

[0098] Furthermore, the cathodes of both the first battery status indicator and the second battery status indicator are connected to the reference ground via an eleventh resistor.

[0099] By adopting the above technical solution, the settings of the first battery status indicator and the second battery status indicator are more reasonable, and the eleventh resistor can play a current-limiting role.

[0100] Furthermore, the deodorizer control circuit includes an audio prompt module for alerting the user by emitting sound.

[0101] By adopting the above technical solution, the deodorizer control circuit is made more reasonable, and the sound prompt module can provide sound prompts to the user, greatly enhancing the user experience.

[0102] Furthermore, the sound prompt module includes a sound-emitting element and a second controllable switch. The sound-emitting element is capable of emitting sound. The second controllable switch has a third switch terminal, a fourth switch terminal, and a second switch control terminal. The positive power supply terminal of the sound-emitting element is connected to the positive power supply terminal of the power supply module, and the negative power supply terminal of the sound-emitting element is connected to the third switch terminal of the second controllable switch. The fourth switch terminal of the second controllable switch is connected to a reference ground, and the second switch control terminal of the second controllable switch is connected to the sound control terminal of the control module. The second controllable switch is configured to control the on / off state between the third switch terminal and the fourth switch terminal according to the signal state on its second switch control terminal.

[0103] By adopting the above technical solution, the sound prompt module becomes more reasonable; when the control module controls the third and fourth switch terminals of the second controllable switch to disconnect, the sound-generating unit cannot establish a power supply circuit, and the sound-generating unit does not work; when the control module controls the third and fourth switch terminals of the second controllable switch to connect, the sound-generating unit establishes a power supply circuit, and the sound-generating unit works and emits sound.

[0104] Preferably, the generating unit is a buzzer.

[0105] Furthermore, the sound prompt module includes a second diode, the cathode of which is connected to the positive terminal of the power supply of the sound-emitting element, and the anode of which is connected to the negative terminal of the power supply of the sound-emitting element.

[0106] By adopting the above technical solution, the sound prompt module becomes more reasonable.

[0107] Furthermore, the positive power supply terminal of the sound-generating element is connected to the positive power supply terminal of the power supply module through a tenth resistor.

[0108] By adopting the above technical solution, the sound prompt module becomes more reasonable, and the tenth resistor serves as a current limiter.

[0109] Furthermore, the second controllable switch is configured such that when its second switch control terminal is at a high level, it controls the third switch terminal and the fourth switch terminal to be turned on, and when its second switch control terminal is at a non-high level, it controls the third switch terminal and the fourth switch terminal to be turned off.

[0110] The above technical solution makes the second controllable switch more reasonable.

[0111] Furthermore, the second controllable switch is configured as a transistor, and the transistor is an NPN type transistor. The collector (C) of the transistor is formed as the third switching terminal of the second controllable switch, the emitter (E) of the transistor is formed as the fourth switching terminal of the second controllable switch, and the base (B) of the transistor is formed as the second switching control terminal of the second controllable switch.

[0112] The above technical solution makes the second controllable switch more reasonable.

[0113] Furthermore, the sound prompt module includes a fifth resistor and a sixth resistor. The fifth resistor is connected in series between the second switch control terminal of the second controllable switch and the sound control terminal of the control module. One end of the sixth resistor is connected to the second switch control terminal of the second controllable switch, and the other end of the sixth resistor is connected to the fourth switch terminal of the second controllable switch.

[0114] By adopting the above technical solution, the sound prompt module becomes more reasonable.

[0115] An odor deodorizer includes an ozone generator and the aforementioned odor deodorizer control circuit, wherein the ozone generator is connected to the drive module via the external interface.

[0116] The above technical solution makes the deodorizer more reasonable; due to the use of the above deodorizer control circuit, the accuracy of door opening detection can be greatly improved, effectively avoiding the risk of human exposure to ozone, and it is more energy-efficient.

[0117] Compared with the prior art, the present invention has the following beneficial effects:

[0118] (1) The deodorizer control circuit and deodorizer of this utility model determine whether the door opening action occurs by detecting vibration, making the judgment more reasonable, reliable and accurate, less affected by environmental factors, and thus the control of the ozone generator is more reliable and accurate, effectively avoiding the risk of human contact with ozone.

[0119] (2) The deodorizer control circuit and deodorizer of this utility model are reasonably and reliably designed. Attached Figure Description

[0120] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0121] Figure 1 This is a schematic diagram of the circuit structure of the detection module, control module, gear position indicator module, and battery status indicator module in the deodorizer control circuit of this utility model;

[0122] Figure 2 This is a schematic diagram of the circuit structure of the drive module in the deodorizer control circuit of this utility model;

[0123] Figure 3 This is a schematic diagram of the circuit structure of the power supply module and the charging management module in the deodorizer control circuit of this utility model;

[0124] Figure 4 This is a schematic diagram of the circuit structure of the sound prompt module in the deodorizer control circuit of this utility model;

[0125] The component names corresponding to the various reference numerals in the figure are as follows: 1. Drive module; 101. External interface; 1011. External positive terminal; 1012. External negative terminal; 102. First controllable switch; 1021. First switch terminal; 1022. Second switch terminal; 1023. First switch control terminal; 2. Detection module; 201. Detection signal output terminal; 3. Power processing network; 4. External power interface; 401. External power positive terminal connection; 402. External power negative terminal connection; 5. Input spike protection network; 6. Operation module Block; 7. Gear position indicator module; 701. Gear position indicator light; 8. Sound prompt module; 801. Second controllable switch; 8011. Third switch terminal; 8012. Fourth switch terminal; 8013. Second switch control terminal; BAT1. Power supply module; BAT1-1. Positive power supply terminal; BAT1-2. Negative power supply terminal; SW1. Operation switch; CN3. External interface for fan; CN4. External interface for ozone generator; U1. Charging management module; U1-1. Charging status indicator terminal; U1-2. Charging complete indicator terminal; U 1-3, Power input terminal; U3, Control module; U3-1, Deodorization control terminal; U3-2, Sound control terminal; OVS, Vibration sensor; OVS-1, First vibration sensor switch terminal; OVS-2, Second vibration sensor switch terminal; Q1, MOSFET; Q2, Transistor; D1, First diode; D2, Second diode; D3, Third diode; R1, First resistor; R2, Second resistor; R3, Third resistor; R5, Fifth resistor; R6, Sixth resistor; R8, Eighth resistor; R9, Ninth resistor R10, tenth resistor; R11, eleventh resistor; R12, twelfth resistor; R13, thirteenth resistor; R14, fourteenth resistor; R15, fifteenth resistor; R16, sixteenth resistor; C1, first capacitor; C5, fifth capacitor; C6, sixth capacitor; LED1, battery status indicator module; LED1-1, first battery status indicator; LED1-2, second battery status indicator; FM1, sound-generating element; FM1-1, positive power supply; FM1-2, negative power supply; GND, reference ground. Detailed Implementation

[0126] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0127] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0128] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0129] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The drawings only show the components related to this application and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0130] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0131] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0132] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0133] See Figures 1 to 2 This utility model provides a deodorizer control circuit for driving an ozone generator, comprising:

[0134] Power supply module BAT1, which is used to provide electrical energy;

[0135] A drive module 1 has an external interface 101 for external device access, the external device including the ozone generator. The drive module 1 is connected to the power supply module BAT1 and is configured to selectively connect or disconnect the circuit between the power supply module BAT1 and the external interface 101.

[0136] Detection module 2, which is used to detect whether vibration occurs and generate a vibration signal when it detects vibration;

[0137] And control module U3, which is connected to detection module 2 and drive module 1, and controls drive module 1 to connect or disconnect the circuit between power supply module BAT1 and external interface 101 according to whether detection module 2 sends a vibration signal to it;

[0138] When the control module U3 receives a vibration signal, the control module U3 controls the drive module 1 to cut off the circuit between the power supply module BAT1 and the external interface 101.

[0139] Using the above technical solution, the ozone generator is connected to the drive module 1 through the external interface 101; the user can place the deodorizer control circuit with the ozone generator installed inside the refrigerator. Under normal circumstances, the refrigerator will not vibrate, so the detection module 2 does not send a vibration signal to the control module U3. The control module U3 controls the drive module 1 to drive the ozone generator to work according to the preset working mode to achieve sterilization and deodorization effects.

[0140] When a user opens the refrigerator door, the refrigerator vibrates. The detection module 2 detects the vibration and sends a vibration signal to the control module U3. The control module U3 controls the drive module 1 to cut off the circuit between the power supply module BAT1 and the external interface 101, and the ozone generator stops working to avoid the risk of human exposure to ozone. The control module U3 controls the drive module 1 to reconnect the circuit between the power supply module BAT1 and the external interface 101. Vibration detection can still be used, or time control can be used, or a light sensor can be added to detect brightness, or a combination of the above.

[0141] The detection module 2 of the above technical solution determines whether a door opening action has occurred by detecting vibration, making the judgment more reasonable, reliable and accurate, and less affected by environmental factors;

[0142] Specifically, the control module U3 can be a programmable controller, such as a microcontroller, or it can be built using logic elements and computing elements.

[0143] Furthermore, the drive module 1 includes a first controllable switch 102, the positive power supply terminal BAT1-1 of the power supply module BAT1 is connected to the external positive terminal 1011 of the external interface 101, the negative power supply terminal BAT1-2 of the power supply module BAT1 is connected to the reference ground GND, the external negative terminal 1012 of the external interface 101 is connected to the first switch terminal 1021 of the first controllable switch 102, the second switch terminal 1022 of the first controllable switch 102 is connected to the reference ground GND, and the deodorization control terminal U3-1 of the control module U3 is connected to the first switch control terminal 1023 of the first controllable switch 102 to selectively control the connection between the first switch terminal 1021 and the second switch terminal 1022.

[0144] By adopting the above technical solution, the drive module 1 becomes more reasonable; when the deodorization control terminal U3-1 of the control module U3 controls the first switch terminal 1021 and the second switch terminal 1022 of the first controllable switch 102 to disconnect, the circuit between the power supply module BAT1 and the external interface 101 is disconnected; when the deodorization control terminal U3-1 of the control module U3 controls the first switch terminal 1021 and the second switch terminal 1022 of the first controllable switch 102 to connect, the circuit between the power supply module BAT1 and the external interface 101 is connected.

[0145] Furthermore, the external interface 101 includes an ozone generator external interface CN4 for connecting the ozone generator to the drive module 1.

[0146] By adopting the above technical solution, the external interface 101 becomes more reasonable; the ozone generator external interface CN4 can connect the ozone generator.

[0147] Furthermore, the external interface 101 also includes a fan external interface CN3 for connecting the fan to the drive module 1.

[0148] By adopting the above technical solution, the external interface 101 is made more reasonable; the fan external interface CN3 can connect the fan, and the operation of the fan can accelerate the diffusion of ozone and improve the sterilization and deodorization effect; and the above structure enables the fan and the ozone generator to work synchronously, that is, the two can keep synchronized when they are working and when they stop working.

[0149] Furthermore, the first controllable switch 102 is configured such that when its first switch control terminal 1023 is at a high level, it controls the first switch terminal 1021 and the second switch terminal 1022 to connect, and when its first switch control terminal 1023 is at a non-high level, it controls the first switch terminal 1021 and the second switch terminal 1022 to disconnect.

[0150] The above technical solution makes the first controllable switch 102 more reasonable.

[0151] Furthermore, the first controllable switch 102 is configured as a MOSFET Q1, and the MOSFET Q1 is an N-type MOSFET Q1. The drain (D) terminal of the MOSFET Q1 is formed as the first switching terminal 1021 of the first controllable switch 102, the source (S) terminal of the MOSFET Q1 is formed as the second switching terminal 1022 of the first controllable switch 102, and the gate (G) terminal of the MOSFET Q1 is formed as the first switching control terminal 1023 of the first controllable switch 102.

[0152] The above technical solution makes the first controllable switch 102 more reasonable.

[0153] Furthermore, the drive module 1 also includes an eighth resistor R8 and a ninth resistor R9. One end of the ninth resistor R9 is connected to the first switch control terminal 1023, and the other end of the ninth resistor R9 is connected to the reference ground GND. The eighth resistor R8 is connected in series between the first switch terminal 1021 of the first controllable switch 102 and the deodorization control terminal U3-1 of the control module U3.

[0154] The above technical solution makes the driving module 1 more reasonable.

[0155] Furthermore, the driving module 1 also includes a third diode D3, the anode of the third diode D3 being connected to the external negative terminal 1012 of the external interface 101, and the cathode of the third diode D3 being connected to the external positive terminal 1011 of the external interface 101.

[0156] The above technical solution makes the driving module 1 more reasonable.

[0157] Further, the detection module 2 includes a vibration sensor OVS and a thirteenth resistor R13. The vibration sensor OVS has a first vibration sensor switch terminal OVS-1 and a second vibration sensor switch terminal OVS-2. The vibration sensor OVS is configured such that when it detects vibration, the first vibration sensor switch terminal OVS-1 and the second vibration sensor switch terminal OVS-2 are connected; when it does not detect vibration, the first vibration sensor switch terminal OVS-1 and the second vibration sensor switch terminal OVS-2 are disconnected. One end of the thirteenth resistor R13 is connected to the positive power supply terminal BAT1-1 of the power supply module BAT1, and the other end of the thirteenth resistor R13 is connected to the first vibration sensor switch terminal OVS-1. The second vibration sensor switch terminal OVS is connected to the reference ground GND. The end of the thirteenth resistor R13 used to connect to the first vibration sensor switch terminal OVS-1 forms the detection signal output terminal 201 of the detection module 2.

[0158] The above technical solution makes the detection module 2 more reasonable; when the vibration sensor OVS does not detect vibration, the first vibration sensor switch terminal OVS-1 and the second vibration sensor switch terminal OVS-2 are disconnected, and the detection signal output terminal 201 is pulled high to a high level, that is, a high level is output to the outside.

[0159] When the vibration sensor OVS detects vibration, the first vibration sensor switch terminal OVS-1 and the second vibration sensor switch terminal OVS-2 are connected, and the detection signal output terminal 201 is pulled low to a low level, that is, a low level is output to the outside. This low level signal is the vibration signal.

[0160] Furthermore, the vibration sensor OVS is an omnidirectional vibration sensor OVS.

[0161] By adopting the above technical solution, the vibration sensor OVS is made more reasonable, and the vibration sensor OVS is more accurate in detecting vibration.

[0162] Furthermore, a fourteenth resistor R14 is connected in series between the thirteenth resistor R13 and the first vibration sensor switch terminal OVS-1.

[0163] The above technical solution makes the detection module 2 more reasonable.

[0164] Furthermore, the detection module 2 includes a sixth capacitor C6, one end of which is connected to one end of the thirteenth resistor R13, and the other end of which is connected to the other end of the thirteenth resistor R13.

[0165] The above technical solution makes the detection module 2 more reasonable.

[0166] Furthermore, the positive power supply terminal BAT1-1 of the power supply module BAT1 is connected to the thirteenth resistor R13 through the power processing network 3.

[0167] The above technical solution makes the connection between the power supply module BAT1 and the detection module 2 more reasonable.

[0168] Furthermore, the power processing network 3 includes a twelfth resistor R12 and a fifth capacitor C5. The positive power supply terminal BAT1-1 of the power supply module BAT1 is connected to one end of the twelfth resistor R12, and the other end of the twelfth resistor R12 is connected to one end of the fifth capacitor C5. The other end of the fifth capacitor C5 is connected to the reference ground GND, and the connection point between the twelfth resistor R12 and the fifth capacitor C5 is connected to the thirteenth resistor R13.

[0169] By adopting the above technical solution, the power processing network 3 becomes more reasonable, the twelfth resistor R12 can play a current limiting role, and the fifth capacitor C5 can play a filtering role, making the power supply module BAT1 provide more stable and reliable power.

[0170] Furthermore, the power supply module BAT1 uses a storage battery.

[0171] By adopting the above technical solution, the power supply module BAT1 becomes more reasonable. Since the circuit needs to be placed inside the refrigerator, and there is no external power supply interface inside the refrigerator, the power supply module BAT1 uses a battery to ensure the normal operation of the circuit and is more suitable for its working environment, making it adaptable to most working environments.

[0172] Furthermore, the deodorizer control circuit includes a charging management module U1, which is located between the external power interface 4 and the power supply module BAT1 to control the charging process of the external power interface 4 charging the power supply module BAT1.

[0173] By adopting the above technical solution, the deodorizer control circuit is made more reasonable, the charging management module U1 can control the power supply process of the power supply module BAT1, ensuring the reliability and safety of charging quality, and extending the service life of the battery.

[0174] Furthermore, the control module U3 is connected to the charging management module U1 to obtain charging information and control the drive module 1 according to the obtained charging information. When the charging information obtained by the control module U3 indicates a charging state, the control module U3 controls the drive module 1 to cut off the circuit between the power supply module BAT1 and the external interface 101.

[0175] The above technical solution makes the deodorizer control circuit more reasonable; when the user charges the power supply module BAT1, the control module U3 controls the drive module 1 to cut off the circuit between the power supply module BAT1 and the external interface 101, so that the power supply path of the ozone generator is automatically switched, eliminating the risk of ozone leakage caused by accidental start-up and ensuring the safety of user use.

[0176] Furthermore, the charging management module U1 has a charging status indicator terminal U1-1 for indicating whether it is in a charging state and a charging completion indicator terminal U1-2 for indicating whether charging is complete. The control module U3 is connected to the charging status indicator terminal U1-1 and the charging completion indicator terminal U1-2 to obtain charging information.

[0177] By adopting the above technical solution, the charging management module U1 becomes more reasonable.

[0178] Furthermore, the charging status indicator terminal U1-1 of the charging management module U1 outputs a signal to the control module U3 through the second resistor R2, and the charging completion indicator terminal U1-2 of the charging management module U1 outputs a signal to the control module U3 through the third resistor R3.

[0179] By adopting the above technical solution, the connection between the charging management module U1 and the control module U3 becomes more reasonable.

[0180] Furthermore, the external power interface 4 has an external power positive connection terminal 401 and an external power negative connection terminal 402. The external power positive connection terminal 401 of the external power interface 4 is connected to the power input terminal U1-3 of the charging management module U1, and the external power negative connection terminal 402 of the external power interface 4 is connected to the reference ground GND.

[0181] The above technical solution makes the external power interface 4 more reasonable.

[0182] Furthermore, a first diode D1 is connected in series between the external power positive connection terminal 401 of the external power interface 4 and the power input terminal U1-3 of the charging management module U1, and the anode of the first diode D1 is connected to the external power positive connection terminal 401 of the external power interface 4, and the cathode of the first diode D1 is connected to the power input terminal U1-3 of the charging management module U1.

[0183] By adopting the above technical solution, the connection between the external power interface 4 and the charging management module U1 is made more reasonable.

[0184] Furthermore, an input spike protection network 5 is connected to the power input terminal U1-3 of the charging management module U1. The input spike protection network 5 includes a first resistor R1 and a first capacitor C1. One end of the first resistor R1 is connected to the power input terminal U1-3 of the charging management module U1, and the other end of the first resistor R1 is connected to one end of the first capacitor C1. The other end of the first capacitor C1 is connected to the reference ground GND.

[0185] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable, and the input spike protection network 5 can ensure stable, reliable and safe charging.

[0186] Furthermore, the charging management module U1 uses a TC4056A chip.

[0187] By adopting the above technical solution, the charging management module U1 becomes more reasonable.

[0188] Furthermore, the external power interface 4 adopts a USB interface.

[0189] The above technical solution makes the external power interface 4 more reasonable.

[0190] Furthermore, the deodorizer control circuit includes an operation module 6, which is connected to the control module U3. The control module U3 is used to receive physical operations from the user and send corresponding operation instructions to the control module U3.

[0191] By adopting the above technical solution, the deodorizer control circuit is made more reasonable. Users can operate the operation module 6 to send operation commands to the control module U3, thereby realizing operations such as start / stop and switching of working modes.

[0192] Furthermore, the control module U3 is configured such that, under normal operating conditions, the control module U3 controls the drive module 1 to intermittently connect and disconnect the circuit between the power supply module BAT1 and the external interface 101.

[0193] By adopting the above technical solution, the control module U3 becomes more reasonable. The control module U3 controls the drive module 1 to intermittently connect and disconnect the circuit between the power supply module BAT1 and the external interface 101, thereby realizing the intermittent operation of the ozone generator. The above technical solution can extend the standby time while ensuring the sterilization and deodorization effects.

[0194] Furthermore, the control module U3 is equipped with multiple working positions, each corresponding to a different interval time parameter; the interval time parameter includes working duration and / or stopping duration; the user selects a working position by operating the operation module 6, and the control module U3 controls the drive module 1 according to the corresponding interval time parameter of the working position.

[0195] The above technical solution makes the control module U3 more reasonable; users can select different gears according to their own needs. The working time can be the same and the stop time can be different, or the working time can be different and the stop time can be the same, or the working time can be different and the stop time can be different.

[0196] The above technical solution enables the deodorizer control circuit to adapt to more usage scenarios and is more practical.

[0197] Furthermore, the operation module 6 is configured as an operation switch SW1, and one end of the operation switch SW1 is connected to the control module U3, and the other end of the operation switch SW1 is connected to the reference ground GND. The operation switch SW1 receives physical operations from the user to connect or disconnect the connection at both ends.

[0198] By adopting the above technical solution, the operation switch SW1 is made more reasonable. When the user does not press the operation switch SW1, the two ends of the operation switch SW1 are disconnected and the operation switch SW1 does not send a signal to the control module U3; when the user presses the operation switch SW1, the two ends of the operation switch SW1 are connected and the operation switch SW1 sends a low-level signal to the control module U3.

[0199] Specifically, users can operate the operation switch SW1 in different ways to execute different operation commands, such as short press, long short press, and continuous press.

[0200] Furthermore, the deodorizer control circuit includes a gear indicator module 7 for indicating the currently selected working gear, and the gear indicator module 7 is connected to the control module U3.

[0201] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable; the gear indicator module 7 enables the user to clearly understand the currently selected gear.

[0202] Normally, the gear position indicator module 7 is in a non-working state. When the user opens the door, the detection module 2 detects the vibration, and the control module U3 controls the gear position indicator module to work and indicate the currently selected working gear. After a period of time, it switches back to a non-working state. The above technical solution can save electricity.

[0203] Furthermore, the gear position indicator module 7 includes gear position indicator lights 701, and the number of gear position indicator lights 701 is matched with the number of working gears set by the control module U3, and they are matched one-to-one. The anode of each gear position indicator light 701 is connected to the positive power supply terminal BAT1-1 of the power supply module BAT1, and the cathode of each gear position indicator light 701 is connected to the corresponding gear position indicator control terminal of the control module U3.

[0204] By adopting the above technical solution, the gear position indicator module becomes more reasonable. When the gear position indicator module is working, the gear position indicator light 701 corresponding to the selected gear position illuminates.

[0205] Specifically, the control module U3 has three gear positions, and correspondingly, the gear position indicator lights 701 have three positions.

[0206] Furthermore, the positive power supply terminal BAT1-1 of the power supply module BAT1 is connected to the anode of each of the gear indicator lights 701 through the power processing network 3.

[0207] The above technical solution makes the connection between the power supply module BAT1 and the gear indicator 701 more reasonable.

[0208] Furthermore, the power processing network 3 includes a twelfth resistor R12 and a fifth capacitor C5. The positive power supply terminal BAT1-1 of the power supply module BAT1 is connected to one end of the twelfth resistor R12, and the other end of the twelfth resistor R12 is connected to one end of the fifth capacitor C5. The other end of the fifth capacitor C5 is connected to the reference ground GND. The connection point between the twelfth resistor R12 and the fifth capacitor C5 is connected to the anode of each of the gear indicator lights 701.

[0209] By adopting the above technical solution, the power processing network 3 becomes more reasonable, the twelfth resistor R12 can play a current limiting role, and the fifth capacitor C5 can play a filtering role, making the power supply module BAT1 provide more stable and reliable power.

[0210] Furthermore, the power processing network 3 is connected to the anode of each of the gear indicator lights 701 via a sixteenth resistor R16.

[0211] By adopting the above technical solution, the connection between the power processing network 3 and the gear indicator 701 is made more reasonable.

[0212] Furthermore, the power supply module BAT1 uses a storage battery;

[0213] The control module U3 is connected to the power supply module BAT1 to obtain the power status of the power supply module BAT1. The control module U3 controls the drive module 1 according to the power status of the power supply module BAT1. When the control module U3 obtains that the power status of the power supply module BAT1 is lower than a preset power level, the control module U3 controls the drive module 1 to cut off the circuit between the power supply module BAT1 and the external interface 101.

[0214] By adopting the above technical solution, the deodorizer control circuit becomes more reasonable. When the control module U3 detects that the power supply module BAT1's charge level is lower than the preset charge level, the control module U3 controls the drive module 1 to cut off the circuit between the power supply module BAT1 and the external interface 101. That is, when the power supply module BAT1's charge level is lower than the preset charge level, the ozone generator stops, preventing the power supply module BAT1 from over-discharging and also preventing the ozone generator from operating unstablely, thus extending the circuit's service life.

[0215] Furthermore, the control module U3 is connected to the positive power supply terminal BAT1-1 of the power supply module BAT1 to obtain its power status.

[0216] By adopting the above technical solution, the control module U3 can obtain the power of the power supply module BAT1 more reasonably.

[0217] Furthermore, a fifteenth resistor R15 is connected in series between the control module U3 and the positive power supply terminal BAT1-1 of the power supply module BAT1.

[0218] The above technical solution makes the connection between the control module U3 and the power supply module BAT1 more reasonable.

[0219] Furthermore, the deodorizer control circuit includes a battery status indicator module LED1 for indicating battery status. The battery status indicator module LED1 includes a first battery status indicator LED1-1 and a second battery status indicator LED1-2. The anodes of the first battery status indicator LED1-1 and the second battery status indicator LED1-2 are respectively connected to the battery status indicator control terminal corresponding to the control module U3, and the cathodes of the first battery status indicator LED1-1 and the second battery status indicator LED1-2 are connected to the reference ground GND.

[0220] Specifically, the first battery status indicator LED1-1 and the second battery status indicator LED1-2 emit different colors of light; generally, the first battery status indicator LED1-1 emits green light, and the second battery status indicator LED1-2 emits red light.

[0221] The above technical solution makes the deodorizer control circuit more reasonable; users can understand the current battery status by observing the status of the battery status indicator module LED1, such as whether the power is too low or whether it is charging.

[0222] Normally, the battery status indicator module LED1 is in a non-working state. When the user opens the door, the detection module 2 detects the vibration, and the control module U3 controls the battery status indicator module LED1 to work and indicate the current battery status. After a period of time, it switches back to a non-working state. The above technical solution can save electricity.

[0223] During charging, the battery status indicator module LED1 can operate for an extended period of time to remind the user whether charging is complete.

[0224] Furthermore, the cathodes of both the first battery status indicator LED1-1 and the second battery status indicator LED1-2 are connected to the reference ground GND through the eleventh resistor R11.

[0225] By adopting the above technical solution, the settings of the first battery status indicator LED1-1 and the second battery status indicator LED1-2 are more reasonable, and the eleventh resistor R11 can play the role of current limiting.

[0226] Furthermore, the deodorizer control circuit includes an audio prompt module 8 for alerting the user by emitting sound.

[0227] By adopting the above technical solution, the deodorizer control circuit is made more reasonable, and the sound prompt module 8 can provide sound prompts to the user, greatly enhancing the user experience.

[0228] Furthermore, the sound prompt module 8 includes a sound-emitting element FM1 and a second controllable switch 801. The sound-emitting element FM1 is capable of emitting sound. The second controllable switch 801 has a third switch terminal 8011, a fourth switch terminal 8012, and a second switch control terminal 8013. The positive power supply terminal FM1-1 of the sound-emitting element FM1 is connected to the positive power supply terminal BAT1-1 of the power supply module BAT1. The negative power supply terminal FM1-2 of the sound-emitting element FM1 is connected to the third switch terminal 8011 of the second controllable switch 801. The fourth switch terminal 8012 of the second controllable switch 801 is connected to the reference ground GND. The second switch control terminal 8013 of the second controllable switch 801 is connected to the sound control terminal U3-2 of the control module U3. The second controllable switch 801 is configured to control the on / off state between the third switch terminal 8011 and the fourth switch terminal 8012 according to the signal state on its second switch control terminal 8013.

[0229] By adopting the above technical solution, the sound prompt module 8 becomes more reasonable; when the control module U3 controls the third switch terminal 8011 and the fourth switch terminal 8012 of the second controllable switch 801 to disconnect, the sound-generating unit cannot establish a power supply circuit, and the sound-generating unit does not work; when the control module U3 controls the third switch terminal 8011 and the fourth switch terminal 8012 of the second controllable switch 801 to connect, the sound-generating unit establishes a power supply circuit, and the sound-generating unit works and emits sound;

[0230] Preferably, the generating unit is a buzzer.

[0231] Furthermore, the sound prompt module 8 includes a second diode D2, the cathode of the second diode D2 is connected to the positive power terminal FM1-1 of the sound-generating element FM1, and the anode of the second diode D2 is connected to the negative power terminal FM1-2 of the sound-generating element FM1.

[0232] By adopting the above technical solution, the sound prompt module 8 becomes more reasonable.

[0233] Furthermore, the positive power supply terminal FM1-1 of the sound-generating element FM1 is connected to the positive power supply terminal BAT1-1 of the power supply module BAT1 through the tenth resistor R10.

[0234] By adopting the above technical solution, the sound prompt module 8 becomes more reasonable, and the tenth resistor R10 serves as a current limiter.

[0235] Furthermore, the second controllable switch 801 is configured such that when its second switch control terminal 8013 is at a high level, it controls the third switch terminal 8011 and the fourth switch terminal 8012 to be turned on, and when its second switch control terminal 8013 is at a non-high level, it controls the third switch terminal 8011 and the fourth switch terminal 8012 to be turned off.

[0236] The above technical solution makes the second controllable switch 801 more reasonable.

[0237] Furthermore, the second controllable switch 801 is configured as a transistor Q2, and the transistor Q2 is an NPN type transistor Q2. The collector (C) terminal of the transistor Q2 is formed as the third switching terminal 8011 of the second controllable switch 801, the emitter (E) terminal of the transistor Q2 is formed as the fourth switching terminal 8012 of the second controllable switch 801, and the base (B) terminal of the transistor Q2 is formed as the second switching control terminal 8013 of the second controllable switch 801.

[0238] The above technical solution makes the second controllable switch 801 more reasonable.

[0239] Furthermore, the sound prompt module 8 includes a fifth resistor R5 and a sixth resistor R6. The fifth resistor R5 is connected in series between the second switch control terminal 8013 of the second controllable switch 801 and the sound control terminal U3-2 of the control module U3. One end of the sixth resistor R6 is connected to the second switch control terminal 8013 of the second controllable switch 801, and the other end of the sixth resistor R6 is connected to the fourth switch terminal 8012 of the second controllable switch 801.

[0240] By adopting the above technical solution, the sound prompt module 8 becomes more reasonable.

[0241] An odor deodorizer includes an ozone generator and the aforementioned odor deodorizer control circuit, wherein the ozone generator is connected to the drive module 1 via the external interface 101.

[0242] The above technical solution makes the deodorizer more reasonable; due to the use of the above deodorizer control circuit, the accuracy of door opening detection can be greatly improved, effectively avoiding the risk of human exposure to ozone, and it is more energy-efficient.

[0243] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0244] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be defined by the scope of the claims.

Claims

1. A deodorizer control circuit for driving an ozone generator, characterized in that, include: Power supply module (BAT1), which is used to provide electrical energy; A drive module (1) has an external interface (101) for accessing external devices, the external devices including the ozone generator, the drive module (1) is connected to the power supply module (BAT1) and the drive module (1) is configured to selectively connect or disconnect the circuit between the power supply module (BAT1) and the external interface (101). The detection module (2) is used to detect whether vibration occurs and generate a vibration signal when it detects vibration. And a control module (U3), which is connected to the detection module (2) and the drive module (1), and controls the drive module (1) to connect or disconnect the circuit between the power supply module (BAT1) and the external interface (101) according to whether the detection module (2) sends a vibration signal to it; When the control module (U3) receives a vibration signal, the control module (U3) controls the drive module (1) to cut off the circuit between the power supply module (BAT1) and the external interface (101).

2. The deodorizer control circuit according to claim 1, characterized in that: The drive module (1) includes a first controllable switch (102). The positive power supply terminal (BAT1-1) of the power supply module (BAT1) is connected to the external positive terminal (1011) of the external interface (101). The negative power supply terminal (BAT1-2) of the power supply module (BAT1) is connected to the reference ground (GND). The external negative terminal (1012) of the external interface (101) is connected to the first switch terminal (1021) of the first controllable switch (102). The second switch terminal (1022) of the first controllable switch (102) is connected to the reference ground (GND). The deodorization control terminal (U3-1) of the control module (U3) is connected to the first switch control terminal (1023) of the first controllable switch (102) to selectively control the connection between the first switch terminal (1021) and the second switch terminal (1022). The external interface (101) includes an ozone generator external interface (CN4) for connecting the ozone generator to the drive module (1). The external interface (101) also includes a fan external interface (CN3) for connecting the fan to the drive module (1).

3. The deodorizer control circuit according to claim 2, characterized in that: The first controllable switch (102) is configured such that when its first switch control terminal (1023) is at a high level, it controls the first switch terminal (1021) and the second switch terminal (1022) to connect, and when its first switch control terminal (1023) is at a non-high level, it controls the first switch terminal (1021) and the second switch terminal (1022) to disconnect. The first controllable switch (102) is configured as a MOSFET (Q1), and the MOSFET (Q1) is an N-type MOSFET (Q1). The drain (D) terminal of the MOSFET (Q1) is formed as the first switching terminal (1021) of the first controllable switch (102), the source (S) terminal of the MOSFET (Q1) is formed as the second switching terminal (1022) of the first controllable switch (102), and the gate (G) terminal of the MOSFET (Q1) is formed as the first switching control terminal (1023) of the first controllable switch (102). The drive module (1) further includes an eighth resistor (R8) and a ninth resistor (R9). One end of the ninth resistor (R9) is connected to the first switch control terminal (1023), and the other end of the ninth resistor (R9) is connected to the reference ground (GND). The eighth resistor (R8) is connected in series between the first switch terminal (1021) of the first controllable switch (102) and the deodorization control terminal (U3-1) of the control module (U3). The drive module (1) further includes a third diode (D3), the anode of which is connected to the external negative terminal (1012) of the external interface (101), and the cathode of which is connected to the external positive terminal (1011) of the external interface (101).

4. The deodorizer control circuit according to claim 1, characterized in that: The detection module (2) includes a vibration sensor (OVS) and a thirteenth resistor (R13). The vibration sensor (OVS) has a first vibration sensor switch terminal (OVS-1) and a second vibration sensor switch terminal (OVS-2). The vibration sensor (OVS) is configured such that when it detects vibration, the first vibration sensor switch terminal (OVS-1) and the second vibration sensor switch terminal (OVS-2) are connected; when it does not detect vibration, the first vibration sensor switch terminal (OVS-1) and the second vibration sensor switch terminal (R13) are disconnected. The sensor switch terminal (OVS-2) is disconnected; one end of the thirteenth resistor (R13) is connected to the positive power supply terminal (BAT1-1) of the power supply module (BAT1), and the other end of the thirteenth resistor (R13) is connected to the first vibration sensor switch terminal (OVS-1). The second vibration sensor (OVS) switch is connected to the reference ground (GND). The end of the thirteenth resistor (R13) used to connect to the first vibration sensor switch terminal (OVS-1) is formed as the detection signal output terminal (201) of the detection module (2). The vibration sensor (OVS) is an omnidirectional vibration sensor (OVS). A fourteenth resistor (R14) is connected in series between the thirteenth resistor (R13) and the first vibration sensor switch terminal (OVS-1). The detection module (2) includes a sixth capacitor (C6), one end of which is connected to one end of the thirteenth resistor (R13), and the other end of which is connected to the other end of the thirteenth resistor (R13). The positive power supply terminal (BAT1-1) of the power supply module (BAT1) is connected to the thirteenth resistor (R13) through the power processing network (3); The power processing network (3) includes a twelfth resistor (R12) and a fifth capacitor (C5). The positive power supply terminal (BAT1-1) of the power supply module (BAT1) is connected to one end of the twelfth resistor (R12), and the other end of the twelfth resistor (R12) is connected to one end of the fifth capacitor (C5). The other end of the fifth capacitor (C5) is connected to the reference ground (GND), and the connection point between the twelfth resistor (R12) and the fifth capacitor (C5) is connected to the thirteenth resistor (R13).

5. The deodorizer control circuit according to any one of claims 1 to 4, characterized in that: The power supply module (BAT1) uses a storage battery; The deodorizer control circuit includes a charging management module (U1), which is located between the external power interface (4) and the power supply module (BAT1) to control the charging process of the external power interface (4) charging the power supply module (BAT1). The control module (U3) is connected to the charging management module (U1) to obtain charging information and control the drive module (1) according to the obtained charging information. When the charging information obtained by the control module (U3) is in a charging state, the control module (U3) controls the drive module (1) to cut off the circuit between the power supply module (BAT1) and the external interface (101). The charging management module (U1) has a charging status indicator terminal (U1-1) for indicating whether it is in a charging state and a charging completion indicator terminal (U1-2) for indicating whether charging is complete. The control module (U3) is connected to the charging status indicator terminal (U1-1) and the charging completion indicator terminal (U1-2) to obtain charging information. The charging status indicator terminal (U1-1) of the charging management module (U1) outputs a signal to the control module (U3) through the second resistor (R2), and the charging completion indicator terminal (U1-2) of the charging management module (U1) outputs a signal to the control module (U3) through the third resistor (R3). The external power interface (4) has an external power positive connection terminal (401) and an external power negative connection terminal (402). The external power positive connection terminal (401) of the external power interface (4) is connected to the power input terminal (U1-3) of the charging management module (U1), and the external power negative connection terminal (402) of the external power interface (4) is connected to the reference ground (GND). A first diode (D1) is connected in series between the positive terminal (401) of the external power interface (4) and the power input terminal (U1-3) of the charging management module (U1). The anode of the first diode (D1) is connected to the positive terminal (401) of the external power interface (4), and the cathode of the first diode (D1) is connected to the power input terminal (U1-3) of the charging management module (U1). An input spike protection network (5) is connected to the power input terminal (U1-3) of the charging management module (U1). The input spike protection network (5) includes a first resistor (R1) and a first capacitor (C1). One end of the first resistor (R1) is connected to the power input terminal (U1-3) of the charging management module (U1), and the other end of the first resistor (R1) is connected to one end of the first capacitor (C1). The other end of the first capacitor (C1) is connected to the reference ground (GND). The charging management module (U1) uses a TC4056A chip; The external power interface (4) adopts a USB interface.

6. The deodorizer control circuit according to claim 1, characterized in that: It includes an operation module (6), which is connected to the control module (U3), and the control module (U3) is used to receive the user's physical operation and send the corresponding operation instruction to the control module (U3); The control module (U3) is configured such that, under normal operating conditions, the control module (U3) controls the drive module (1) to intermittently connect and disconnect the circuit between the power supply module (BAT1) and the external interface (101); The control module (U3) is equipped with multiple working positions, each corresponding to a different interval time parameter; the interval time parameter includes working duration and / or stopping duration; the user selects a working position by operating the operation module (6), and the control module (U3) controls the drive module (1) according to the corresponding interval time parameter of the working position.

7. The deodorizer control circuit according to claim 1, characterized in that: The operation module (6) is configured as an operation switch (SW1), and one end of the operation switch (SW1) is connected to the control module (U3), and the other end of the operation switch (SW1) is connected to the reference ground (GND). The operation switch (SW1) receives physical operations from the user to connect or disconnect the connection at both ends. The deodorizer control circuit includes a gear indicator module (7) for indicating the currently selected working gear, and the gear indicator module (7) is connected to the control module (U3); The gear position indicator module (7) includes gear position indicator lights (701), and the number of gear position indicator lights (701) is matched with the number of working gears set by the control module (U3) and they are matched one by one. The anode of each gear position indicator light (701) is connected to the positive power supply terminal (BAT1-1) of the power supply module (BAT1), and the cathode of each gear position indicator light (701) is connected to the corresponding gear position indicator control terminal of the control module (U3). The positive terminal (BAT1-1) of the power supply module (BAT1) is connected to the anode of each of the gear indicator lights (701) through the power processing network (3); The power processing network (3) includes a twelfth resistor (R12) and a fifth capacitor (C5). The positive power supply terminal (BAT1-1) of the power supply module (BAT1) is connected to one end of the twelfth resistor (R12), and the other end of the twelfth resistor (R12) is connected to one end of the fifth capacitor (C5). The other end of the fifth capacitor (C5) is connected to the reference ground (GND). The connection between the twelfth resistor (R12) and the fifth capacitor (C5) is connected to the anode of each of the gear indicator lights (701). The power processing network (3) is connected to the anode of each of the gear indicator lights (701) via the sixteenth resistor (R16).

8. The deodorizer control circuit according to claim 5, characterized in that: The power supply module (BAT1) uses a storage battery; The control module (U3) is connected to the power supply module (BAT1) to obtain the power status of the power supply module (BAT1). The control module (U3) controls the drive module (1) according to the power status of the power supply module (BAT1). When the control module (U3) obtains that the power status of the power supply module (BAT1) is lower than a preset power level, the control module (U3) controls the drive module (1) to cut off the circuit between the power supply module (BAT1) and the external interface (101). The control module (U3) is connected to the positive power supply terminal (BAT1-1) of the power supply module (BAT1) to obtain its power status; A fifteenth resistor (R15) is connected in series between the control module (U3) and the positive power supply terminal (BAT1-1) of the power supply module (BAT1). The deodorizer control circuit includes a battery status indicator module (LED1) for indicating battery status. The battery status indicator module (LED1) includes a first battery status indicator (LED1-1) and a second battery status indicator (LED1-2). The anodes of the first battery status indicator (LED1-1) and the second battery status indicator (LED1-2) are respectively connected to the battery status indicator control terminal corresponding to the control module (U3). The cathodes of the first battery status indicator (LED1-1) and the second battery status indicator (LED1-2) are connected to the reference ground (GND). The cathodes of the first battery status indicator (LED1-1) and the second battery status indicator (LED1-2) are both connected to the reference ground (GND) through the eleventh resistor (R11).

9. The deodorizer control circuit according to claim 7 or 8, characterized in that: Includes a sound prompt module (8) for alerting users by emitting sound; The sound prompt module (8) includes a sound-emitting element (FM1) and a second controllable switch (801). The sound-emitting element (FM1) is capable of emitting sound. The second controllable switch (801) has a third switch terminal (8011), a fourth switch terminal (8012), and a second switch control terminal (8013). The positive power supply terminal (FM1-1) of the sound-emitting element (FM1) is connected to the positive power supply terminal (BAT1-1) of the power supply module (BAT1), and the negative power supply terminal (FM1-2) of the sound-emitting element (FM1) is connected to the second controllable switch (801). The third switch terminal (8011) of the switch (801) is connected, the fourth switch terminal (8012) of the second controllable switch (801) is connected to the reference ground (GND), the second switch control terminal (8013) of the second controllable switch (801) is connected to the sound control terminal (U3-2) of the control module (U3), and the second controllable switch (801) is configured to control the on / off state between the third switch terminal (8011) and the fourth switch terminal (8012) according to the signal state on its second switch control terminal (8013); The sound prompt module (8) includes a second diode (D2), the cathode of the second diode (D2) is connected to the positive terminal (FM1-1) of the power supply of the sound-generating element (FM1), and the anode of the second diode (D2) is connected to the negative terminal (FM1-2) of the power supply of the sound-generating element (FM1). The positive power supply terminal (FM1-1) of the sound-generating element (FM1) is connected to the positive power supply terminal (BAT1-1) of the power supply module (BAT1) through the tenth resistor (R10); The second controllable switch (801) is configured such that when its second switch control terminal (8013) is at a high level, it controls the third switch terminal (8011) and the fourth switch terminal (8012) to be turned on, and when its second switch control terminal (8013) is at a non-high level, it controls the third switch terminal (8011) and the fourth switch terminal (8012) to be turned off. The second controllable switch (801) is configured as a transistor (Q2), and the transistor (Q2) is an NPN type transistor (Q2). The collector (C) of the transistor (Q2) is formed as the third switching terminal (8011) of the second controllable switch (801), the emitter (E) of the transistor (Q2) is formed as the fourth switching terminal (8012) of the second controllable switch (801), and the base (B) of the transistor (Q2) is formed as the second switching control terminal (8013) of the second controllable switch (801). The sound prompt module (8) includes a fifth resistor (R5) and a sixth resistor (R6). The fifth resistor (R5) is connected in series between the second switch control terminal (8013) of the second controllable switch (801) and the sound control terminal (U3-2) of the control module (U3). One end of the sixth resistor (R6) is connected to the second switch control terminal (8013) of the second controllable switch (801), and the other end of the sixth resistor (R6) is connected to the fourth switch terminal (8012) of the second controllable switch (801).

10. A deodorizer, characterized in that: Includes an ozone generator and a deodorizer control circuit as described in any one of claims 1 to 9, wherein the ozone generator is connected to the drive module (1) via the external interface (101).

Images