Formaldehyde detection device and air conditioner

Abstract

The utility model discloses a formaldehyde detection device and an air conditioner, the formaldehyde detection device is installed on an air conditioner indoor unit of the air conditioner, the formaldehyde detection device comprises a first cover body and a second cover body, the first cover body and the second cover body are mutually covered to form a cavity, and a formaldehyde detection sensor is arranged in the cavity; a communicating hole is formed in the first cover body or the second cover body and is communicated with the external environment and the formaldehyde detection sensor in the cavity; the communicating hole is further provided with a blocking piece, the blocking piece blocks the communicating hole when the formaldehyde detection sensor does not participate in work, and the blocking piece is removed from the communicating hole when the formaldehyde detection sensor participates in work. According to the formaldehyde detection device and the air conditioner, the formaldehyde detection device is installed on the air conditioner indoor unit of the air conditioner, so that the air conditioner indoor unit has the formaldehyde detection function, meanwhile, due to the arrangement of the blocking piece, the formaldehyde detection device can only participate in work when the air conditioner indoor unit works, and the service life of the formaldehyde detection device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, in particular to a formaldehyde detection device and an air conditioner. Background Art

[0002] Formaldehyde detection devices generally use semiconductor detection or electrochemical sensor detection. Semiconductor detection has low accuracy and large data deviation after a period of use, which makes it difficult to meet people's needs. However, electrochemical sensors measure the concentration of formaldehyde through the change of current generated by chemical reactions. They have high detection accuracy and are particularly suitable for detection in areas with low formaldehyde content.

[0003] As people's environmental awareness increases, they combine air conditioners with formaldehyde detection sensors. When installing air conditioners in a space, they also install formaldehyde detection sensors. In the prior art, most formaldehyde detection sensors combined with air conditioners are electrochemical sensors that detect trace amounts of formaldehyde in the room.

[0004] However, in the prior art, after the electrochemical sensor is installed on the air conditioner, the electrochemical sensor is not sealed. Therefore, after the product is produced (including after the electrochemical sensor is produced, after the electrochemical sensor is installed on the air conditioner, and after the air conditioner is installed indoors and does not work during the period), or during the turnover period, the electrochemical sensor is in contact with the air. If a high concentration of gas appears in the environment of certain links, it will cause the formaldehyde sensor to be poisoned. The so-called formaldehyde sensor poisoning phenomenon refers to the performance of the sensor being reduced or even unable to work normally, resulting in the failure of the formaldehyde sensor. After the formaldehyde sensor is poisoned, its measurement accuracy and response speed may be affected, resulting in inaccurate measurement values ​​or delayed response. In some cases, the formaldehyde sensor may fail completely due to poisoning and cannot detect formaldehyde gas in the environment. In a normal environment, the formaldehyde sensor will react when it comes into contact with the air, which will continue to consume the consumables in the formaldehyde detection sensor, which is not conducive to the long-term use of the formaldehyde sensor, and the service life will decay for a certain period of time.

[0005] Furthermore, although the formaldehyde detection device in the prior art is combined with an air conditioner, the air conditioner often does not have a display screen to display the formaldehyde content data in the environment in real time, and it is difficult for users to intuitively obtain the formaldehyde content data in the environment. Utility Model Content

[0006] In order to overcome at least one defect of the above-mentioned prior art, the utility model provides a formaldehyde detection device, which sets a formaldehyde detection sensor in a cavity, and blocks the connecting hole connecting the cavity and the formaldehyde detection sensor through a plugging piece, so that the connecting hole is blocked when the formaldehyde detection sensor is not working, so as to prevent the gas in the external environment from entering the cavity and being detected by the formaldehyde detection sensor, thereby consuming consumables in the formaldehyde detection sensor. When the formaldehyde detection sensor is working, the plugging piece is removed from the connecting hole, so that the connecting hole connects the formaldehyde detection sensor and the external environment, and normal detection is achieved.

[0007] In order to overcome at least one defect of the above-mentioned prior art, the utility model also provides an air conditioner, on which the aforementioned formaldehyde detection device is installed on the air-conditioning indoor unit, so that the air conditioner has a formaldehyde detection function, and the formaldehyde detection device does not come into contact with external gas during the production and turnover of the air conditioner, and only performs formaldehyde content detection after the air conditioner is installed indoors and is put into operation.

[0008] The technical solution adopted by the utility model to solve the problem is:

[0009] A formaldehyde detection device comprises a first cover body and a second cover body, wherein the first cover body and the second cover body cover each other to form a cavity, wherein a formaldehyde detection sensor is arranged in the cavity; a connecting hole is arranged on the first cover body or the second cover body, wherein the connecting hole connects an external environment with the formaldehyde detection sensor in the cavity; a blocking piece is also arranged on the connecting hole, wherein the blocking piece blocks the connecting hole when the formaldehyde detection sensor is not working, and the blocking piece is removed from the connecting hole when the formaldehyde detection sensor is working.

[0010] Further: the communication hole is arranged on the first cover body, and a sealing ring is arranged on the inner surface of the first cover body, and the sealing ring surrounds the outer periphery of the communication hole;

[0011] The formaldehyde detection sensor is pressed against the sealing ring, and the probe of the formaldehyde detection sensor is positioned toward the communicating hole and is surrounded by the sealing ring.

[0012] Furthermore: a limiting ring groove is arranged on the inner surface of the first cover body, the sealing ring is placed in the limiting ring groove, and the communicating hole is arranged in the inner area of ​​the limiting ring groove.

[0013] Furthermore, the blocking member is an adhesive sheet, which is adhered to the outer surface of the first cover body and blocks the connecting hole. When the formaldehyde detection sensor is working, the adhesive sheet is torn off from the first cover body.

[0014] Furthermore: the first cover body and the second cover body are detachably connected; and a mounting structure is provided on the first cover body and / or the second cover body.

[0015] Furthermore: a core plate is arranged in the cavity, the formaldehyde detection sensor is fixedly mounted on the core plate, and the core plate is fixedly mounted to the first cover body or the second cover body.

[0016] Furthermore: a signal connection terminal is also provided on the core board, and the signal connection terminal is connected to the formaldehyde detection sensor signal, and a wire hole is provided on the first cover body and / or the second cover body, and the wire hole faces the signal connection terminal.

[0017] An air conditioner comprises an air conditioner indoor unit, on which the aforementioned formaldehyde detection device is installed.

[0018] Furthermore, the air conditioner indoor unit comprises a main body, a control main board and a panel, the formaldehyde detection device is mounted on the main body, the control main board is connected to the signal connection terminal on the formaldehyde detection device via a signal line, and a display screen is provided on the panel, and the display screen displays real-time formaldehyde content data measured by the formaldehyde detection device;

[0019] The core board is also provided with a wireless module, which is connected to the user terminal signal and displays the real-time formaldehyde content data measured by the formaldehyde detection device on the user terminal.

[0020] Furthermore, the formaldehyde detection device is installed inside the host body, and the outer surface of the first cover is tightly sealed to the inner surface of the shell of the host body, an air hole is provided on the shell of the host body, the air hole faces the connecting hole, the blocking member is provided at the position of the air hole on the shell, and the blocking member blocks the air hole when the formaldehyde detection sensor is not working.

[0021] In summary, the formaldehyde detection device provided by the utility model has the following technical effects:

[0022] 1. Place the formaldehyde detection sensor in the cavity, and set a connecting hole connecting the formaldehyde detection sensor and the external environment, and set a plugging piece on the connecting hole. After the formaldehyde detection device is manufactured, after the formaldehyde detection device is installed on the air conditioner, and during the time period when the air conditioner is not immediately operated after installation, the plugging piece keeps the connecting hole blocked to prevent gas from the external environment from entering the formaldehyde detection device and consuming consumables in the formaldehyde detection device. At the same time, it also prevents high-concentration formaldehyde gas in certain external environments from entering the cavity, causing the formaldehyde detection sensor to fail, thereby extending the service life of the formaldehyde detection device and improving the detection accuracy of the formaldehyde detection device.

[0023] 2. A first sealing ring is provided, and the first sealing ring surrounds the outside of the probe of the formaldehyde detection sensor to ensure that the probe of the formaldehyde detection sensor is only exposed to external gas through the connecting hole, avoiding contact with the gas stored in the cavity, which may cause inaccurate detection.

[0024] 3. The sealing parts are set with adhesive sheets, which makes the sealing and removal operations convenient and fast with low cost.

[0025] In summary, the air conditioner provided by the utility model has the following technical effects:

[0026] 1. The aforementioned formaldehyde detection device is installed on the indoor unit of the air conditioner, so that the air conditioner has a formaldehyde detection function. The formaldehyde detection device is kept in a closed state during the production, transportation and temporary non-use of the air conditioner after installation, and is not in contact with the outside air, thereby avoiding the consumption of consumables in the formaldehyde detection device and ensuring the detection life and accuracy of the formaldehyde detection device.

[0027] 2. A display screen is provided on the indoor unit of the air conditioner to display the formaldehyde content detected by the formaldehyde detection device in real time, so that the user can obtain and know the formaldehyde content value in the environment in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The utility model is a schematic structural diagram of an air conditioner according to an embodiment of the present invention.

[0029] Figure 2 This is an exploded view of a formaldehyde detection device.

[0030] Figure 3 This is an exploded view of a formaldehyde detection device from another perspective.

[0031] The meanings of the reference numerals are as follows:

[0032] 1. Air conditioner indoor unit; 2. Display screen; 3. Formaldehyde detection device; 30. Formaldehyde detection sensor; 31. First cover body; 32. Second cover body; 33. Signal connection terminal; 34. Connecting hole; 35. Sealing ring; 36. Limiting ring groove; 37. Core board; 38. Installation structure; 39. Wire hole. DETAILED DESCRIPTION

[0033] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0036] See also Figure 1 The utility model discloses an air conditioner. The air conditioner comprises an air conditioner indoor unit 1, and a formaldehyde detection device 3 is installed on the air conditioner indoor unit 1. The formaldehyde detection device 3 is used to perform real-time detection of formaldehyde in the installation environment of the air conditioner indoor unit 1.

[0037] In order to improve the detection accuracy of the formaldehyde detection device, the utility model proposes a formaldehyde detection device with a new structure. After it is installed on the indoor unit of the air conditioner, formaldehyde detection will not be performed during the period when the indoor unit of the air conditioner is transported or not in use after installation, thereby avoiding consumption of consumables in the formaldehyde detection device 3, extending the service life of the formaldehyde detection device 3, and improving the detection accuracy of the formaldehyde detection device 3.

[0038] In order to facilitate those skilled in the art to understand the structure and function of a new formaldehyde detection device in the technical solution of the utility model, the formaldehyde detection device 3 is introduced in detail below.

[0039] like Figure 2 and Figure 3 As shown, a formaldehyde detection device 3 includes a first cover body 31 and a second cover body 32, and the first cover body 31 and the second cover body 32 cover each other to form a cavity. A formaldehyde detection sensor 30 is arranged in the cavity. A connecting hole 34 is arranged on the first cover body 31 or the second cover body 32, and the connecting hole 34 connects the external environment with the formaldehyde detection sensor 30 in the cavity. A blocking piece is also arranged on the connecting hole 34, and the blocking piece blocks the connecting hole 34 when the formaldehyde detection sensor 30 is not involved in the work, and the blocking piece is removed from the connecting hole 34 when the formaldehyde detection sensor 30 is involved in the work.

[0040] Based on the above technical solution, after the formaldehyde detection device 3 is prepared, the formaldehyde detection device 3 is installed on the air conditioner indoor unit and is transported with the air conditioner indoor unit, during the period after the air conditioner indoor unit is installed but not in use, it is ensured that the blocking member blocks the connecting hole, so that the external air cannot enter the formaldehyde detection sensor, avoiding the formaldehyde detection to continuously detect the non-test area or the area that does not need to be detected temporarily, and avoiding the consumption of consumables in the formaldehyde detection device. Furthermore, it is to avoid the problem of poisoning of the formaldehyde detection sensor 30 caused by the contact of formaldehyde with the formaldehyde detection sensor 30 in the external environment due to excessive formaldehyde content in certain situations or certain environments.

[0041] When the indoor unit of the air conditioner is working, the formaldehyde detection device is involved in the formaldehyde detection work. At this time, the plugging piece used to block the connecting hole on the formaldehyde detection device is removed or opened to make the connecting hole conductive. The connecting hole connects the external environment with the formaldehyde detection sensor, and the gas in the external environment enters the formaldehyde detection device and contacts the formaldehyde detection sensor, and the formaldehyde detection sensor detects the formaldehyde content in the external environment.

[0042] Consumables in formaldehyde detection devices refer to materials used in electrochemical formaldehyde detection sensors to react with formaldehyde in the environment.

[0043] Based on the above technical solution, the formaldehyde detection device is installed on the air conditioner indoor unit, so that the air conditioner has the formaldehyde detection function during the cooling or refrigeration process. The formaldehyde detection device has the characteristics of long service life and high detection accuracy.

[0044] In the technical solution, the communication hole 34 is provided on the first cover body 31, and a sealing ring 35 is provided on the inner surface of the first cover body 31, and the sealing ring 35 surrounds the outer periphery of the communication hole 34. The formaldehyde detection sensor 30 rests on the sealing ring 35, and the probe position of the formaldehyde detection sensor 30 faces the communication hole 34 and is surrounded by the sealing ring 35.

[0045] Based on the above technical solution, a sealing ring is provided to limit the space between the formaldehyde detection sensor and the connecting hole, ensuring that the gas entering through the connecting hole directly enters the formaldehyde detection sensor instead of entering the gas position in the cavity, thereby preventing the gas from being stored in the cavity, preventing the formaldehyde detection sensor from detecting the gas stored in the cavity, and preventing the formaldehyde content detected by the formaldehyde detection sensor from being the real-time formaldehyde content in the external environment. That is, by providing a sealing ring, the detection accuracy of the formaldehyde detection sensor is further ensured.

[0046] In the technical solution, a limiting ring groove 36 is provided on the inner surface of the first cover body 31, the sealing ring 35 is placed in the limiting ring groove 36, and the communication hole 34 is provided in the inner area of ​​the limiting ring groove 36. By providing the limiting ring groove, the sealing ring is limited to prevent the sealing ring from moving due to the position or state of the formaldehyde detection device or the air conditioner indoor unit, and ensure that the sealing ring always surrounds the formaldehyde detection sensor inside, so that the probe of the formaldehyde detection sensor is always facing and connected to the communication hole.

[0047] In this technical solution, in order to reduce costs and simplify the operation of the blocking member, the blocking member adopts an adhesive sheet. The adhesive sheet is adhered to the outer surface of the first cover body 31 and blocks the connecting hole 34. When the formaldehyde detection sensor 30 is involved in the work, the adhesive sheet is torn off from the first cover body 31. When the formaldehyde detection device is prepared, the adhesive sheet is adhered to the first cover body and blocks the connecting hole.

[0048] In the technical solution, the first cover 31 and the second cover 32 are detachably connected, which is convenient for repairing or replacing the formaldehyde detection sensor 30 in the cavity. The first cover 31 and / or the second cover 32 are provided with a mounting structure 38, which is convenient for the overall installation of the formaldehyde detection device. The mounting structure here is not limited, and structures such as mounting brackets, connecting terminals or connecting holes are all possible, which can be selected according to the installation position or installation space, and are integrally formed when the first cover or the second cover is formed.

[0049] In the present technical solution, a core plate 37 is provided in the cavity, the formaldehyde detection sensor 30 is fixedly mounted on the core plate 37, and the core plate 37 is fixedly mounted with the first cover body 31 or the second cover body 32. The provision of the core plate facilitates the installation and fixation of the formaldehyde detection sensor, and also ensures the stable fixation of the formaldehyde detection sensor in the cavity, ensures the fixed form of the formaldehyde detection sensor in the cavity, and reduces the failure rate of the formaldehyde detection sensor.

[0050] In the present technical solution, a signal connection terminal 33 is also provided on the core board 37, and the signal connection terminal 33 is connected to the formaldehyde detection sensor 30 by signal. A wire hole 39 is provided on the first cover 31 and / or the second cover 32, and the wire hole 39 faces the signal connection terminal 33. The signal connection terminal is connected to the formaldehyde detection sensor to lead out the electrical signal in the formaldehyde detection sensor. The provision of the wire hole facilitates the signal line connected to the signal connection terminal to pass through the first cover or the second cover, which is convenient for wiring.

[0051] In actual application, the formaldehyde detection device 3 in the present technical solution is installed on the indoor unit of the air conditioner. The signal line passes through the wire hole, one end of the signal line is connected to the control main board in the indoor unit of the air conditioner, and the other end is connected to the signal connection terminal. When the indoor unit of the air conditioner is working, the control system of the indoor unit of the air conditioner obtains the real-time formaldehyde content in the environmental space measured by the formaldehyde detection sensor.

[0052] Generally, the indoor unit 1 of the air conditioner includes a main body, a control main board and a panel.

[0053] The formaldehyde detection device 3 is installed on the main body, and the control main board is connected to the signal connection terminal 33 on the formaldehyde detection device 3 through a signal line. A display screen 2 is provided on the panel, and the display screen 2 displays the real-time formaldehyde content data measured by the formaldehyde detection device 3. When the air conditioner is working, the control system of the air conditioner obtains the real-time formaldehyde content in the environment space measured by the formaldehyde detection sensor, and displays the formaldehyde content data on the display screen in real time, so that the user can clearly understand the actual formaldehyde content in the space.

[0054] After the blocking piece on the formaldehyde detection device is removed, the formaldehyde detection sensor in the formaldehyde detection device will also measure the formaldehyde content when the air conditioner indoor unit is not working. At this time, because the air conditioner indoor unit is not working, the display screen does not display any data. Therefore, in this state, the formaldehyde detection sensor works, but the user cannot obtain the display data from the air conditioner indoor unit temporarily.

[0055] Of course, when the air conditioner indoor unit is not working, if the user does not need to perform formaldehyde detection, the user can also block the connecting hole with the sealing piece so that the formaldehyde detection sensor is temporarily not in contact with the outside air, suspending the formaldehyde detection work and extending the consumption of consumables in the formaldehyde detection sensor.

[0056] In order to more conveniently obtain real-time data on formaldehyde content, the formaldehyde detection device is connected to user terminals such as mobile phones, computers, and mobile tablets that people use all the time.

[0057] In order to connect the formaldehyde detection device with the user terminal, a wireless module is also provided on the core board. The wireless module is connected with the user terminal signal and displays the real-time formaldehyde content data measured by the formaldehyde detection device 3 on the user terminal.

[0058] In order for the user terminal to normally display the real-time formaldehyde content data measured by the formaldehyde detection device 3, a corresponding APP needs to be installed on the user terminal. With the development of electronic information technology, this type of APP development technology has become very mature, and it is not difficult for developers to do more pioneering and creative research and development work. Therefore, the research and development cost of this type of APP will not be very high, which is also conducive to the promotion and use of the formaldehyde detection device 3 and this type of APP.

[0059] In order to ensure the appearance of the air conditioner indoor unit, the formaldehyde detection device 3 can generally be installed inside the main body. In order to facilitate the removal of the blocking piece, when the formaldehyde detection device is installed inside the main body of the air conditioner indoor unit, ensure that the outer surface of the first cover body 31 is tightly sealed with the inner surface of the shell of the main body, and an air vent is provided on the shell of the main body, the air vent faces the connecting hole 34, and the blocking piece is arranged at the position of the air vent on the shell, and the blocking piece blocks the air vent when the formaldehyde detection sensor 30 is not involved in the work. In this way, the blocking piece directly seals the air vent on the shell of the main body, and the air vent can be blocked. When the air conditioner indoor unit is working, or when the formaldehyde detection device is detecting, the blocking piece can be directly removed from the outside of the air conditioner indoor unit, without the need to disassemble the air conditioner indoor unit, and the operation is simple and convenient.

[0060] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A formaldehyde detection device, characterized in that: The invention comprises a first cover body and a second cover body, wherein the first cover body and the second cover body cover each other to form a cavity, wherein a formaldehyde detection sensor is arranged in the cavity; a connecting hole is arranged on the first cover body or the second cover body, wherein the connecting hole connects the external environment with the formaldehyde detection sensor in the cavity; a blocking piece is also arranged on the connecting hole, wherein the blocking piece blocks the connecting hole when the formaldehyde detection sensor is not working, and the blocking piece is removed from the connecting hole when the formaldehyde detection sensor is working.

2. The formaldehyde detection device according to claim 1, characterized in that: The communication hole is arranged on the first cover body, and a sealing ring is arranged on the inner surface of the first cover body, and the sealing ring surrounds the outer periphery of the communication hole; The formaldehyde detection sensor is pressed against the sealing ring, and the probe of the formaldehyde detection sensor is positioned toward the communicating hole and is surrounded by the sealing ring.

3. The formaldehyde detection device according to claim 2, characterized in that: A limiting ring groove is arranged on the inner surface of the first cover body, the sealing ring is placed in the limiting ring groove, and the communicating hole is arranged in the inner area of ​​the limiting ring groove.

4. The formaldehyde detection device according to claim 2, characterized in that: The blocking member is an adhesive sheet, which is adhered to the outer surface of the first cover body and blocks the connecting hole. When the formaldehyde detection sensor is working, the adhesive sheet is torn off from the first cover body.

5. The formaldehyde detection device according to claim 1 or 2, characterized in that: The first cover body and the second cover body are detachably connected; and a mounting structure is provided on the first cover body and / or the second cover body.

6. The formaldehyde detection device according to claim 1 or 2, characterized in that: A core plate is arranged in the cavity, the formaldehyde detection sensor is fixedly mounted on the core plate, and the core plate is fixedly mounted to the first cover body or the second cover body.

7. The formaldehyde detection device according to claim 6, characterized in that: The core board is also provided with a signal connection terminal, and the signal connection terminal is connected to the formaldehyde detection sensor signal. The first cover body and / or the second cover body is provided with a wire hole, and the wire hole faces the signal connection terminal.

8. An air conditioner, characterized in that: It comprises an indoor unit of an air conditioner, on which the formaldehyde detection device according to any one of claims 1 to 7 is installed.

9. The air conditioner according to claim 8, characterized in that: The air conditioner indoor unit comprises a main body, a control main board and a panel, the formaldehyde detection device is installed on the main body, the control main board is connected to the signal connection terminal on the formaldehyde detection device through a signal line, and a display screen is provided on the panel, and the display screen displays real-time formaldehyde content data measured by the formaldehyde detection device; A wireless module is also provided on the core board, and the wireless module is connected to the user terminal signal and displays the real-time formaldehyde content data measured by the formaldehyde detection device on the user terminal.

10. The air conditioner according to claim 9, characterized in that: The formaldehyde detection device is installed inside the host body, and the outer surface of the first cover is tightly sealed to the inner surface of the shell of the host body. An air hole is provided on the shell of the host body, and the air hole faces the connecting hole. The blocking member is provided at the position of the air hole on the shell, and the blocking member blocks the air hole when the formaldehyde detection sensor is not working.

Images