An intelligent water meter with Bluetooth communication

By introducing moisture absorption modules and heating modules into the smart water meter, combined with the air circulation of the fan, the problem of circuit boards and communication components being eroded in humid environments is solved, and the effect of extending service life and improving reliability is achieved.

CN118730228BActive Publication Date: 2025-06-20SHENZHEN KAILU INNOVATION TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202410878707.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-07-02
Publication Date
2025-06-20
Estimated Expiration
2044-07-02

AI Technical Summary

Technical Problem

In humid use environments, water vapor is prone to erosion of circuit boards and communication components, reducing its service life.

Method used

A smart water meter with a moisture absorption module and a heating module is designed to circulate the air through a fan, which absorbs water vapor and heats the air to dry the circuit board and communication components.

Benefits of technology

It effectively reduces the erosion of water vapor on circuit boards and communication components, extends the service life of the water meter, and improves its working reliability in humid environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN118730228B_ABST
    Figure CN118730228B_ABST
Patent Text Reader

Abstract

The present application provides an intelligent water meter with Bluetooth communication, which relates to the technical field of water meters. The intelligent water meter with Bluetooth communication includes a meter body and a communication device. The communication device includes a mounting housing, a receiving box, a circuit board, a communication component, a moisture absorption module, a heating module and a fan; the mounting housing is connected to the meter body, and the receiving box is arranged in the mounting housing; the circuit board and the communication component are connected in the receiving box, and the receiving box is communicated with the mounting housing; the moisture absorption module and the heating module are connected in the mounting housing, the moisture absorption module is used for adsorbing water vapor in the mounting housing, and the fan is installed in the mounting housing. The present application can improve the influence of water vapor on the circuit board and communication component of the water meter.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the technical field of water meters, and particularly to an intelligent water meter with Bluetooth communication. Background Art

[0002] A water meter is an instrument for measuring water flow and is used for measuring the cumulative water flow. With the development of Internet of Things technology and intelligent manufacturing, improving the intelligence of water meters and uploading meter reading data in a timely manner through Internet of Things technology has become a current trend. An intelligent water meter can automatically record the water consumption and can also communicate with external devices. For example, it uses a Bluetooth module to communicate with the user's mobile phone to facilitate the user to obtain relevant information about the water meter.

[0003] In related technologies, an intelligent water meter includes a meter body and a communication device. The meter body is connected to the water circuit and can measure the water volume. The communication device includes an installation housing, a circuit board, and a communication component. The circuit board and the communication component are electrically connected, and the circuit board and the communication component are installed in the installation housing. The installation housing is fixedly connected to the meter body. The communication component can communicate with external devices to transmit the water volume information to external devices.

[0004] During the use of the water meter, its use environment is generally humid, and it is even more humid due to being part of the water supply pipeline. Such a use environment makes water vapor easily erode the circuit board and communication components of the water meter, reducing their service life and easily affecting the operation of the water meter after long-term use. Summary of the Invention

[0005] In order to improve the influence of water vapor on the circuit board and communication components of the water meter, this application provides an intelligent water meter with Bluetooth communication.

[0006] This application provides an intelligent water meter with Bluetooth communication, adopting the following technical solutions:

[0007] An intelligent water meter with Bluetooth communication includes a meter body and a communication device. The communication device includes an installation housing, a receiving box, a circuit board, a communication component, a moisture absorption module, a heating module, and a fan;

[0008] The installation housing is connected to the meter body, and the receiving box is arranged in the installation housing; the circuit board and the communication component are connected in the receiving box, and the receiving box is communicated with the installation housing; the moisture absorption module and the heating module are connected in the installation housing. The moisture absorption module is used for adsorbing water vapor in the installation housing, and the fan is installed in the installation housing.

[0009] By adopting the above technical solution, when the fan is started, the fan enables air to circulate inside the installation housing. The moisture absorption module adsorbs the water vapor in the air inside the installation housing, thereby being able to reduce the erosion of the water vapor on the circuit board and communication components in the accommodation box. The heating module heats the air inside the installation housing, thereby baking the circuit board and communication components in the accommodation box, and further reducing the water vapor on the circuit board and communication components.

[0010] Optionally, it includes an opening and closing door and a driving component. The installation housing is provided with an air inlet and an air outlet. The driving component is used to drive the opening and closing door to move, so that the opening and closing door opens and closes the air inlet and the air outlet.

[0011] By adopting the above technical solution, when there is a lot of water vapor in the air inside the installation housing, the driving component makes the opening and closing door open the air inlet and the air outlet. The fan can enable the installation housing to exchange gas with the outside world. When the air flow passes through the heating module, hot air can be generated. The hot air can remove the moisture adsorbed in the moisture absorption module, improve the moisture absorption performance of the moisture absorption module, and is beneficial to the reuse of the moisture absorption module. After baking the moisture absorption module for a period of time, the driving component makes the opening and closing door close the air inlet and the air outlet, thereby reducing the entry of external water vapor into the installation housing.

[0012] Optionally, there are two opening and closing doors, and the two opening and closing doors respectively correspond to the air inlet and the air outlet one by one;

[0013] The driving component includes:

[0014] Driving racks. There are two driving racks, and the two driving racks correspond to and are connected to the two opening and closing doors one by one. The driving racks are slidably connected to the installation housing;

[0015] Driving gears, and the driving gears are respectively meshed with the two driving racks;

[0016] A driving source is arranged inside the installation housing. The driving gear is connected to the output end of the driving source, and the driving source is used to drive the driving gear to rotate.

[0017] By adopting the above technical solution, the driving source can drive the driving gear to rotate. The driving gear drives the driving rack to move, and the driving rack drives the opening and closing door to move, so that the opening and closing door opens and closes the air inlet and the air outlet.

[0018] Optionally, the installation housing is provided with a filter screen, and the filter screen covers the air inlet and the air outlet.

[0019] By adopting the above technical solution, when the outside exchanges gas with the installation housing, the filter screen can filter the sundries in the air.

[0020] Optionally, a cleaning brush is connected to the opening and closing door, and the cleaning brush contacts the filter screen.

[0021] By adopting the above technical solution, when the opening and closing door moves, it can drive the cleaning brush to move, so that the cleaning brush can brush off the sundries on the filter screen, thereby cleaning the filter screen.

[0022] Optionally, an air inlet channel and an air outlet channel are arranged in the installation housing. The air inlet channel is communicated with the air inlet, the air outlet channel is communicated with the air outlet, the air inlet channel is communicated with the air outlet channel, both the air inlet channel and the air outlet channel are communicated with the inside of the accommodation box, and the fan is used to blow the air in the air inlet channel into the air outlet channel.

[0023] By adopting the above technical solution, when the opening and closing door opens the air inlet and the air outlet, the outside air enters the air inlet channel from the air inlet, and then flows to the outside through the air outlet channel via the air outlet.

[0024] Optionally, the accommodation box is connected with conducting members. There are two conducting members, and the two conducting members are respectively arranged in the air inlet channel and the air outlet channel. The conducting members can control the on-off of the accommodation box with the air inlet channel and the air outlet channel respectively;

[0025] When the opening and closing door opens the air inlet and the air outlet, the conducting members block the accommodation box; when the opening and closing door closes the air inlet and the air outlet, the conducting members make the accommodation box communicate with the air inlet channel and the air outlet channel respectively.

[0026] By adopting the above technical solution, when the opening and closing door opens the air inlet and the air outlet, the conducting members make the accommodation box not communicate with the air inlet channel and the air outlet channel, which can reduce the moisture in the outside air from entering the accommodation box. When the opening and closing door closes the air inlet and the air outlet, the conducting members make the accommodation box communicate with the air inlet channel and the air outlet channel respectively, and at this time, the moisture in the accommodation box can be adsorbed.

[0027] Optionally, the conducting member includes:

[0028] A conducting housing, which is arranged in the installation housing;

[0029] A plurality of membrane flaps are arranged in the conducting housing. Two membrane flaps are in a group, and the two membrane flaps in the same group are in contact with each other. The membrane flaps are elastic.

[0030] By adopting the above technical solution, when the opening and closing door closes the air inlet and the air outlet, the fan causes the air flow to enter the air outlet passage from the air inlet passage. The increased air pressure makes the two membrane flaps move away from each other. The air flow in the air outlet passage passes through the conduction member and enters the accommodating box, thereby drying the circuit board and communication components in the accommodating box. Subsequently, the air flow passes through the conduction member again and enters the air inlet passage, forming an internal circulation of the air flow in the installation housing. When the opening and closing door opens the air inlet and the air outlet, the outside air enters the air inlet passage and then is discharged from the air outlet passage. The air pressure in the conduction housing decreases relatively, causing the two membrane flaps to move closer to each other and reset, thereby sealing the accommodating box and reducing the entry of outside water vapor into the accommodating box.

[0031] Optionally, the installation housing is provided with a heat-insulating layer, and a heat-conducting wire is connected in the heat-insulating layer.

[0032] By adopting the above technical solution, a part of the heat generated by the heating module is transferred to the heat-conducting wire, and the heat-conducting wire transfers the heat to the installation housing, thereby insulating the installation housing and reducing the influence of cold weather on the communication device.

[0033] Optionally, a humidity sensor is arranged in the installation housing, and the humidity sensor is electrically connected to the driving component.

[0034] By adopting the above technical solution, when the humidity sensor detects that the humidity inside the installation housing is too high, the driving component is started to make the opening and closing door open the air inlet and the air outlet, so as to facilitate the subsequent removal of moisture from the moisture absorption module.

[0035] In summary, the present application includes at least one of the following beneficial effects:

[0036] 1. The fan enables the air to circulate in the installation housing, and the moisture absorption module adsorbs the water vapor in the air in the installation housing, thereby reducing the erosion of the water vapor on the circuit board and communication components in the accommodating box; starting the heating module can make the hot air circulate in the installation housing, and the hot air thermally dries the circuit board and communication components in the accommodating box, further reducing the water vapor of the circuit board and communication components.

[0037] 2. When there is more water vapor in the air in the installation housing, the driving component makes the opening and closing door open the air inlet and the air outlet. The fan can enable the installation housing to exchange gas with the outside world. When the air flow passes through the heating module, hot air can be generated, and the hot air can remove the moisture adsorbed in the moisture absorption module, which is beneficial to the reuse of the moisture absorption module; after the moisture absorption module is thermally dried for a period of time, the driving component makes the opening and closing door close the air inlet and the air outlet, thereby reducing the entry of outside water vapor into the installation housing.

[0038] 3. The filter screen can reduce the entry of foreign matters in the outside air into the installation housing. When the opening and closing door moves, it can drive the cleaning brush to move, so that the cleaning brush can brush off the foreign matters on the filter screen. Description of the Drawings

[0039] Figure 1 It is a schematic diagram of the overall structure of the intelligent water meter with Bluetooth communication according to an embodiment of the present application;

[0040] Figure 2 It is a schematic cross-sectional structure diagram of the communication device according to an embodiment of the present application;

[0041] Figure 3 It is an exploded structure diagram of the communication device according to an embodiment of the present application;

[0042] Figure 4 It is a schematic structure diagram of the driving component according to an embodiment of the present application;

[0043] Figure 5 It is a schematic cross-sectional structure diagram of the accommodation box and the conduction member according to an embodiment of the present application.

[0044] Description of reference numerals: 1, meter body; 2, communication device; 201, installation housing; 2011, heat preservation interlayer; 2012, air inlet; 2013, air outlet; 2014, air inlet channel; 2015, air outlet channel; 202, accommodation box; 203, moisture absorption module; 204, heating module; 205, fan; 206, opening and closing door; 207, driving component; 2071, driving rack; 2072, driving gear; 2073, driving source; 208, filter screen; 209, cleaning brush; 210, conduction member; 2101, conduction housing; 2102, diaphragm; 211, humidity sensor; 212, heat conducting wire; 213, protective shell. Detailed implementation manners

[0045] The following further Figures 1-5 describes the present application in detail.

[0046] An embodiment of the present application provides an intelligent water meter with Bluetooth communication.

[0047] Referring to Figure 1 , the intelligent water meter with Bluetooth communication includes a meter body 1 and a communication device 2. The communication device 2 is installed on the meter body 1. The meter body 1 is in communication with the water circuit, and the meter body 1 can measure the water volume.

[0048] Referring to Figure 1 and Figure 2 , the communication device 2 includes an installation housing 201, an accommodation box 202, a circuit board and communication components. The installation housing 201 is fixedly connected to the meter body 1. The accommodation box 202 is located inside the installation housing 201, and the accommodation box 202 is fixedly connected to the installation housing 201. The circuit board and the communication components are both installed in the accommodation box 202. The circuit board is electrically connected to the communication components. The communication components can communicate with external devices, and the communication components can transmit water volume information to external devices. In this embodiment, the communication components are specifically Bluetooth modules.

[0049] Reference Figure 3 Figure 3 , the installation housing 201 is provided with an air inlet 2012 and an air outlet 2013. An air inlet passage 2014 and an air outlet passage 2015 are arranged inside the installation housing 201. The air inlet 2012 is communicated with the air inlet passage 2014, and the air outlet 2013 is communicated with the air outlet passage 2015. The accommodation box 202 is located between the air inlet passage 2014 and the air outlet passage 2015. Openings are provided on both sides of the accommodation box 202, so that the accommodation box 202 is respectively communicated with the air inlet passage 2014 and the air outlet passage 2015.

[0050] Reference Figure 3 Figure 3 , moisture absorption modules 203 and heating modules 204 are arranged in both the air inlet passage 2014 and the air outlet passage 2015. The moisture absorption modules 203 and the heating modules 204 are both fixedly connected to the installation housing 201. The moisture absorption module 203 is filled with activated carbon inside, and the moisture absorption module 203 can adsorb water vapor in the air. The heating module 204 has an electric heating wire, and the heating module 204 can generate heat.

[0051] Reference Figure 3 Figure 3 , a fan 205 is installed in the installation housing 201. The fan 205 is located between the air inlet passage 2014 and the air outlet passage 2015. When the fan 205 is started, the fan 205 causes the outside air to enter the air inlet passage 2014 through the air inlet 2012, then enter the air outlet passage 2015 from the air inlet passage 2014, and finally be discharged from the air outlet 2013.

[0052] Reference Figure 3 Figure 3 , a filter screen 208 is fixedly connected to the outside of the installation housing 201. There are two filter screens 208, and the two filter screens 208 respectively correspond to the air inlet 2012 and the air outlet 2013 one by one. The two filter screens 208 respectively cover the air inlet 2012 and the air outlet 2013. The filter screen 208 can filter impurities in the air and reduce the entry of impurities in the outside air into the installation housing 201.

[0053] Reference Figure 3 and Figure 4, a drive assembly 207 is provided on the installation housing 201. The drive assembly 207 includes a drive rack 2071, a drive gear 2072, and a drive source 2073. The drive source 2073 specifically uses an electric motor. The body of the drive source 2073 is fixedly connected to the installation housing 201, and the output end of the drive source 2073 is fixedly connected to the drive gear 2072. There are two drive racks 2071. The drive racks 2071 are engaged with the drive gear 2072, and the drive racks 2071 are slidably connected to the installation housing 201. The installation housing 201 is fixedly connected with a protective housing 213. The protective housing 213 covers the outside of the drive racks 2071 and the drive gear 2072, and the protective housing 213 can provide protection for the drive racks 2071 and the drive gear 2072.

[0054] Reference Figure 3 and Figure 4 , an opening and closing door 206 is provided on the installation housing 201. There are two opening and closing doors 206. The two drive racks 2071 are respectively fixedly connected to the two opening and closing doors 206. The two opening and closing doors 206 correspond to the two filter screens 208 one by one. The opening and closing door 206 can cover the filter screen 208, and the opening and closing door 206 can block the air inlet 2012 and the air outlet 2013. When the drive source 2073 drives the drive gear 2072 to rotate, the drive gear 2072 drives the drive rack 2071 to move, and the drive rack 2071 drives the opening and closing door 206 to move, so that the two opening and closing doors 206 move towards each other or away from each other, thereby opening and closing the air inlet 2012 and the air outlet 2013.

[0055] Reference Figure 3 and Figure 4 , a cleaning brush 209 is fixedly connected to one side of the opening and closing door 206. The cleaning brush 209 can contact the filter screen 208. When the drive assembly 207 drives the opening and closing door 206 to move, the opening and closing door 206 drives the cleaning brush 209 to move, and the cleaning brush 209 can brush off the debris attached to the filter screen 208.

[0056] Reference Figure 3 and Figure 5 , conduction members 210 are provided on both sides of the accommodation box 202. The two conduction members 210 are respectively located in the air inlet passage 2014 and the air outlet passage 2015. The conduction member 210 includes a conduction housing 2101 and a diaphragm 2102. The conduction housing 2101 is fixedly connected to the accommodation box 202, and the diaphragm 2102 is fixedly connected to the inside of the conduction housing 2101. There are multiple diaphragms 2102. Two diaphragms 2102 are a group. The two diaphragms 2102 in the same group abut against each other, thereby closing the conduction housing 2101, so that the accommodation box 202 is not communicated with the air inlet passage 2014 and the air outlet passage 2015.

[0057] Reference Figure 3 and Figure 5, when the opening and closing door 206 closes the air inlet 2012 and the air outlet 2013, the fan 205 causes the air flow to enter the air outlet passage 2015 from the air inlet passage 2014. The increased air pressure causes the two diaphragm flaps 2102 to move away from each other. The air flow in the air outlet passage 2015 passes through the conduction member 210 and enters the accommodation box 202, thereby drying the circuit board and communication components in the accommodation box 202. Subsequently, the air flow passes through the conduction member 210 again and enters the air inlet passage 2014, forming an internal circulation of the air flow within the installation housing 201.

[0058] Reference Figure 3 and Figure 5 , when the opening and closing door 206 opens the air inlet 2012 and the air outlet 2013, the fan 205 causes the outside air to enter the air inlet passage 2014 through the air inlet 2012. The heating module 204 can heat the air flow to form hot air, and then the hot air is discharged through the air outlet 2013 from the air outlet passage 2015, causing the air pressure within the conduction housing 2101 to relatively decrease. Since the diaphragm flaps 2102 are elastic, the two diaphragm flaps 2102 move closer to each other and reset, thereby sealing the accommodation box 202 and reducing the entry of outside moisture into the accommodation box 202 at this time.

[0059] Reference Figure 2 and Figure 3 , for the heating module 204 and the moisture absorption module 203 within the air inlet passage 2014 and the air outlet passage 2015, the heating module 204 and the moisture absorption module 203 are arranged in sequence along the air flow direction, enabling the hot air to dry the moisture absorption module 203, which is beneficial for the recycling of the moisture absorption module 203.

[0060] Reference Figure 3 and Figure 4 , a humidity sensor 211 is fixedly connected within the installation housing 201. The humidity sensor 211 is electrically connected to the drive source 2073, and the humidity sensor 211 can detect the humidity of the air within the installation housing 201. When the opening and closing door 206 closes the air inlet 2012 and the air outlet 2013, and the humidity sensor 211 detects a relatively high humidity, it indicates that the moisture absorption module 203 has reached the moisture absorption saturation state. At this time, the drive source 2073 is controlled to open the air inlet 2012 and the air outlet 2013 by the opening and closing door 206, so as to facilitate the subsequent heat drying and water vapor discharge of the moisture absorption module 203.

[0061] Reference Figure 2 and Figure 3 , the housing wall of the installation housing 201 is provided with a heat preservation interlayer 2011, and a heat conducting wire 212 is fixedly connected inside the heat preservation interlayer 2011. When the heating module 204 generates heat, a part of the heat is transferred to the heat conducting wire 212, and the heat conducting wire 212 transfers the heat to the installation housing 201, thereby insulating the installation housing 201 and reducing the impact of cold weather on the communication device 2.

[0062] The implementation principle of an intelligent water meter with Bluetooth communication in an embodiment of this application is as follows: After the intelligent water meter works for a period of time, the fan 205 and the heating module 204 are started, so that the air in the installation housing 201 circulates. The moisture absorption module 203 can adsorb the water vapor in the air in the installation housing 201, thereby reducing the water vapor in the accommodation box 202 and reducing the erosion of the water vapor on the circuit board and communication components. When the humidity sensor 211 detects that the humidity in the installation housing 201 is relatively high, the driving component 207 is started. The driving component 207 opens the air inlet 2012 and the air outlet 2013 of the opening and closing door 206, and the installation housing 201 exchanges air with the outside. The hot air generated by the heating module 204 and the fan 205 can heat-dry the moisture absorption module 203, reducing the moisture in the moisture absorption module 203 and facilitating the reuse of the moisture absorption module 203.

[0063] The above are all preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. A smart water meter with Bluetooth communication, characterized in that: It comprises a meter body (1) and a communication device (2), wherein the communication device (2) comprises a mounting shell (201), a containing box (202), a circuit board, a communication element, a moisture absorption module (203), a heating module (204) and a fan (205); The installation shell (201) is connected to the meter body (1), and the containing box (202) is arranged in the installation shell (201); the circuit board and the communication element are connected in the containing box (202), and the containing box (202) is in communication with the installation shell (201); the moisture absorption module (203) and the heating module (204) are connected in the installation shell (201), the moisture absorption module (203) is used to absorb water vapor in the installation shell (201), and the fan (205) is installed in the installation shell (201); Comprising an opening and closing door (206) and a driving assembly (207), the installation shell (201) is provided with an air inlet (2012) and an air outlet (2013), and the driving assembly (207) is used to drive the opening and closing door (206) to move, so that the opening and closing door (206) opens and closes the air inlet (2012) and the air outlet (2013); The installation housing (201) is provided with a filter (208), and the filter (208) covers the air inlet (2012) and the air outlet (2013); The opening and closing door (206) is connected to a cleaning brush (209), and the cleaning brush (209) is in contact with the filter screen (208); An air inlet channel (2014) and an air outlet channel (2015) are provided in the installation shell (201); the air inlet channel (2014) is in communication with the air inlet port (2012); the air outlet channel (2015) is in communication with the air outlet port (2013); the air inlet channel (2014) is in communication with the air outlet channel (2015); both the air inlet channel (2014) and the air outlet channel (2015) are in communication with the interior of the containing box (202); and the fan (205) is used to blow air in the air inlet channel (2014) into the air outlet channel (2015); The containing box (202) is connected to a conducting member (210), two conducting members (210) are provided, and the two conducting members (210) are respectively provided in the air inlet channel (2014) and the air outlet channel (2015), and the conducting members (210) can control the connection and disconnection between the containing box (202) and the air inlet channel (2014) and the air outlet channel (2015); When the opening and closing door (206) opens the air inlet (2012) and the air outlet (2013), the conductive member (210) blocks the containing box (202); when the opening and closing door (206) closes the air inlet (2012) and the air outlet (2013), the containing box (202) is respectively connected to the air inlet channel (2014) and the air outlet channel (2015) through the conductive member (210); The conductive element (210) comprises: A conducting housing (2101), wherein the conducting housing (2101) is arranged inside the mounting housing (201); The membrane flap (2102) is provided in plurality, the plurality of the membrane flaps (2102) being arranged in the conductive shell (2101), two of the membrane flaps (2102) forming a group, the two membrane flaps (2102) in the same group being in contact with each other, and the membrane flap (2102) being elastic.

2. A smart water meter with Bluetooth communication according to claim 1, characterized in that: Two opening and closing doors (206) are provided, and the two opening and closing doors (206) correspond one to one with the air inlet (2012) and the air outlet (2013), respectively; The driving assembly (207) comprises: A driving rack (2071), wherein two driving racks (2071) are provided, the two driving racks (2071) correspond to and are connected to the two opening and closing doors (206) in a one-to-one manner, and the driving racks (2071) are slidably connected to the mounting housing (201); A driving gear (2072), wherein the driving gear (2072) is respectively meshed with the two driving racks (2071); A driving source (2073), the driving source (2073) being arranged in the mounting housing (201), the driving gear (2072) being connected to an output end of the driving source (2073), and the driving source (2073) being used to drive the driving gear (2072) to rotate.

3. The smart water meter with Bluetooth communication according to claim 1, characterized in that: The installation shell (201) is provided with a heat-insulating interlayer (2011), and a heat-conducting wire (212) is connected inside the heat-insulating interlayer (2011).

4. The smart water meter with Bluetooth communication according to claim 1, characterized in that: A humidity sensor (211) is provided in the installation housing (201), and the humidity sensor (211) is electrically connected to the driving component (207).

Citation Information

Patent Citations

  • Shell structure, heat exchange device and control method of shell structure

    CN115752067A

  • Anti-freezing and dehumidifying electronic water meter

    CN117870795A