Air conditioner indoor unit and air conditioner

Abstract

This application relates to the field of air conditioning technology, specifically providing an indoor air conditioning unit and an air conditioner. It aims to solve the problem that existing air conditioning air guide vanes, due to the lack of an effective power-off mechanism during disassembly, can cause electric shock hazards if users or after-sales personnel operate them without disconnecting the power. To this end, the indoor air conditioning unit of this application includes: a casing with mounting holes; an air guide vane with a rotating shaft; a detection container containing liquid, the detection container being partially disposed within the mounting holes; and a liquid level switch connected to the electrical control circuit of the indoor air conditioning unit. The detection end of the liquid level switch extends into the detection container. When the rotating shaft is inserted into the mounting holes, it applies a force to the detection container to drive the liquid level to rise and contact the detection end, thereby forming a conductive circuit. The indoor air conditioning unit provided by this application can link the installation state of the air guide vane with the electrical control system, thereby reducing the risk of electric shock.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, specifically providing an indoor air conditioning unit and an air conditioner. Background Technology

[0002] Air conditioner air deflectors are constantly exposed to airflow, making them prone to accumulating dust and breeding bacteria. This not only affects airflow quality but may also pose a potential threat to user health. Therefore, regularly cleaning the air deflectors or replacing them promptly when they malfunction is essential to ensuring the efficient and stable operation of air conditioners. This makes the disassembly of air deflectors a frequent occurrence during air conditioner maintenance.

[0003] However, there are significant safety hazards in the current disassembly of air conditioner air deflectors. Although most users know that the power should be turned off before disassembling electrical components, in practice, due to negligence or lack of relevant safety awareness, some users or after-sales personnel may rashly disassemble the air deflector without disconnecting the power. Air conditioners contain high-voltage components; if a live part is accidentally touched during disassembly, it could very likely cause an electric shock, posing a serious threat to personal safety.

[0004] Therefore, there is a need in the field for a new technical solution to address the above problems, which can automatically and reliably cut off the power to the air conditioning unit when the air deflector is removed, thereby providing a solid guarantee for the operational safety of users and after-sales personnel. Utility Model Content

[0005] This application aims to solve the aforementioned technical problem, namely, to address the issue that existing air conditioners, due to the lack of an effective power-off mechanism during the disassembly of the air guide plate, cause users or after-sales personnel to operate the equipment without disconnecting the power, thus posing a risk of electric shock.

[0006] In a first aspect, this application provides an indoor air conditioning unit, comprising:

[0007] The casing has mounting holes.

[0008] An air guide plate with a rotating shaft mounted on it;

[0009] A detection container containing liquid is provided, and the detection container portion is disposed within the mounting hole;

[0010] A liquid level switch is connected to the electrical control circuit of the indoor unit of the air conditioner. The detection end of the liquid level switch extends into the detection container. When the rotating shaft is inserted into the mounting hole, it can apply a force to the detection container to drive the liquid level to rise and contact the detection end, thereby forming a conductive circuit.

[0011] Optionally, the detection container includes:

[0012] An elastic portion is disposed within the mounting hole, and the elastic portion has a receiving cavity.

[0013] An extension portion, which is connected to the elastic portion, extends out of the mounting hole.

[0014] Optionally, the elastic part is made of elastic silicone.

[0015] Optionally, the cross-sectional area of ​​the elastic portion is larger than the cross-sectional area of ​​the extension portion.

[0016] Optionally, the detection container includes:

[0017] The first cylindrical body is disposed within the mounting hole;

[0018] A second cylindrical body is connected to the first cylindrical body and extends out of the mounting hole;

[0019] A piston is slidably disposed within the first cylinder, dividing the first cylinder into a first channel and a second channel, the first channel being connected to the second cylinder.

[0020] A push rod, which is connected to the piston, has one end located in the second channel and the other end extending out of the first cylinder and into the mounting hole;

[0021] A spring is located in the second channel, with one end abutting against the inner wall of the second channel and the other end abutting against the piston. When the rotating shaft is inserted into the mounting hole, it pushes the piston rod, driving the piston to compress the volume of the first channel, so that the liquid flows from the first channel to the second cylinder.

[0022] Optionally, a first limiting part is provided in the mounting hole, and a second limiting part is provided on the rotating shaft to cooperate with the first limiting part.

[0023] Optionally, the air guide plate includes a first air guide plate and a second air guide plate, the first air guide plate and the second air guide plate are respectively located on both sides of the mounting hole, the first air guide plate is provided with a first rotating shaft, and the second air guide plate is provided with a second rotating shaft;

[0024] When the first rotating shaft is inserted into the mounting hole, it can apply a first force to the detection container and cause it to generate a first liquid level increment. When the second rotating shaft is inserted into the mounting hole, it can apply a second force to the detection container and cause it to generate a second liquid level increment. The first liquid level increment and the second liquid level increment are superimposed to cause the liquid level to rise to the trigger position and contact the detection end.

[0025] Optionally, multiple mounting holes and multiple air guide plates are provided, with each air guide plate corresponding to one of the multiple mounting holes. Multiple detection containers and multiple liquid level switches are provided, with each detection container corresponding to one of the mounting holes. The detection end of each liquid level switch extends into the corresponding detection container, and the multiple liquid level switches are electrically connected in series.

[0026] Optionally, the level switch is an electrode-type level switch.

[0027] In a second aspect, this application provides an air conditioner including an indoor unit as described in any one of the first aspects.

[0028] By adopting the above technical solution, the indoor air conditioner unit provided in this application connects the liquid level switch to the main control circuit of the air conditioner and incorporates a detection container. The detection container contains liquid; when the air guide plate shaft is inserted into the mounting hole, it squeezes the detection container, causing the liquid level inside to rise and contact the detection end of the liquid level switch, forming a conductive circuit, allowing the air conditioner to power on. If the shaft is not inserted, the liquid level is low, the circuit is broken, and the air conditioner cannot start. In this way, by detecting the liquid level through the liquid level switch, the installation status of the air guide plate and the power-on status of the air conditioner are correlated. Only when the air guide plate is correctly installed will the air conditioner power on, fundamentally avoiding the risk of electric shock when disassembling the air guide plate. Attached Figure Description

[0029] The preferred embodiments of this application are described below with reference to the accompanying drawings, in which:

[0030] Figure 1 This is a partial structural schematic diagram of the housing of an air conditioner indoor unit according to an embodiment of this application;

[0031] Figure 2 yes Figure 1 Enlarged structural diagram at point A;

[0032] Figure 3 This is a schematic diagram of the assembly of a detection container and a mounting hole according to an embodiment of this application, intended to illustrate the structural schematic diagram of a detection container including an elastic part;

[0033] Figure 4 This is a schematic diagram of the assembly of the detection container and the mounting hole according to another embodiment of this application, intended to illustrate the structural schematic diagram of the detection container adopting a piston-type scheme;

[0034] Figure 5 This is a partial structural schematic diagram of an air conditioner housing according to an embodiment of this application, intended to illustrate the positional relationship between the first air guide plate and the second air guide plate.

[0035] List of reference numerals in the attached diagram:

[0036] 1-Housing, 11-Support, 110-Mounting hole, 2-Air guide plate, 21-Rotating shaft, 201-First rotating shaft, 202-Second rotating shaft, 3-Detection container, 30-Liquid, 311-Elastic part, 312-Extension part, 321-First cylinder, 322-Second cylinder, 323-Piston, 324-Push rod, 325-Spring, 4-Level switch, 40-Detection end. Detailed Implementation

[0037] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0038] It should be noted that in the description of this application, terms such as "upper," "lower," "left," "right," "inner," and "outer," which indicate direction or positional relationship, are based on the direction or positional relationship shown in the accompanying drawings. These terms are used merely for ease of description and do not indicate or imply that the relevant device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, ordinal numbers such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] Furthermore, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] Please refer to Figure 1 and Figure 2 , Figure 1 This application illustrates a partial structure of an air conditioner indoor unit according to one embodiment. Figure 2 yes Figure 1 A partial enlarged view of the connection between the mounting hole 110 and the rotating shaft 21 of the air guide plate 2. The air guide plate 2 is detachably mounted in the mounting hole 110 of the housing 1 via the rotating shaft 21 on it.

[0041] The core of this application lies in converting the physical installation action of the air guide plate 2 into an electrical conduction signal. Specifically, a detection container 3 containing liquid 30 and a liquid level switch 4 that works in conjunction with it are installed in the mounting hole 110 of the indoor unit of the air conditioner. Through the insertion action of the air guide plate 2's rotating shaft 21 into the mounting hole 110, the detection container 3 is mechanically squeezed, triggering the liquid level 30 to rise and contact the detection end 40 of the liquid level switch 4, thereby forming a conductive circuit and ultimately achieving safe power-on control of the entire unit. The liquid level switch 4 is a device that controls the circuit's on / off state by detecting changes in liquid level. When the liquid level rises to a certain height and contacts the detection end 40 of the liquid level switch 4, the circuit is connected; when the liquid level falls away from the detection end 40, the circuit is disconnected.

[0042] Furthermore, in a preferred embodiment, the level switch 4 is preferably an electrode-type level switch. Since the composition and working principle of the electrode-type level switch are well known in the art, this application will not elaborate on them here.

[0043] In this design, the liquid level switch 4 is connected to the main control circuit of the air conditioner, and the design incorporates a detection container 3. The detection container 3 contains liquid 30. When the shaft 21 of the air guide plate 2 is inserted into the mounting hole 110, it squeezes the detection container 3, causing the liquid level 30 inside to rise and contact the detection end 40 of the liquid level switch 4, forming a conductive circuit, allowing the air conditioner to power on. If the shaft 21 is not inserted, the liquid level is low, the circuit is broken, and the air conditioner cannot start. In this way, by detecting the liquid level through the liquid level switch 4, the installation state of the air guide plate 2 and the power-on state of the air conditioner are correlated. Only when the air guide plate 2 is correctly installed will the air conditioner be powered on, fundamentally avoiding the risk of electric shock when disassembling the air guide plate 2.

[0044] To achieve the above solution, in conjunction with the reference Figure 3 In one implementation, a support portion 11 is provided on the casing 1 of the indoor unit of the air conditioner. This support portion 11 has a mounting hole 110 for inserting a rotating shaft 21, and a hollow cavity (not shown) is connected to the top of the mounting hole 110. The hollow cavity provides space for the detection container 3, with one part of the detection container 3 disposed in the mounting hole 110 and the other part disposed in the hollow cavity. When the rotating shaft 21 is inserted into the mounting hole 110, a force is applied to the portion of the detection container 3 located within the mounting hole 110, causing the volume of the detection container 3 to decrease and the liquid level 30 inside to rise until it contacts the detection end 40 of the level switch 4 extending into the detection container 3, thereby forming a conductive circuit.

[0045] In one embodiment, reference Figure 3 The testing container 3 includes an elastic part 311 and an extension part 312, with the extension part 312 being sealed to the elastic part 311. The elastic part 311 is disposed in the mounting hole 110, and has a receiving cavity for containing liquid 30. The extension part 312 is disposed in the hollow cavity of the support part 11.

[0046] Furthermore, the elastic part 311 is preferably made of elastic silicone material.

[0047] In one implementation, the elastic part 311 is an elastic capsule structure, and the extension part 312 is a tubular structure, with the cross-sectional area of ​​the elastic part 311 being larger than that of the extension part 312. When the shaft 21 of the air guide plate 2 is inserted into the mounting hole 110 and squeezes the elastic part 311, due to the larger volume of the elastic part 311, a relatively larger amount of liquid 30 is squeezed out under the same squeezing force. Meanwhile, the extension part 312 has a smaller cross-sectional area, so after a large amount of liquid 30 flows in, the liquid level rises more significantly, allowing it to contact the detection end 40 of the liquid level switch 4 more quickly, forming a conductive circuit. This design significantly enhances the visibility and detection sensitivity of liquid level changes, and effectively improves the reliability of the air guide plate 2 installation status detection and the overall power-off protection mechanism.

[0048] In another embodiment of this application, reference is made to Figure 4 The detection container 3 adopts a piston 323 driven structure. Specifically, the detection container 3 includes a first cylinder 321, a second cylinder 322, a piston 323, a push rod 324, and a spring 325. The first cylinder 321 is fixedly disposed within the mounting hole 110, and the second cylinder 322 is sealed to the first cylinder 321 and disposed within a hollow cavity. The piston 323 is slidably disposed inside the first cylinder 321, dividing its inner cavity into a first channel and a second channel that are not interconnected, wherein the first channel is connected to the inner cavity of the second cylinder 322. One end of the push rod 324 is connected to the piston 323, and the other end passes through the second channel and extends out of the first cylinder 321, extending into the mounting hole 110. The spring 325 is housed within the second channel, with one end abutting against the inner wall of the end of the second channel and the other end abutting against the piston 323, providing a spring force to reset the piston 323.

[0049] When the guide vane 2's rotating shaft 21 is inserted into the mounting hole 110, it pushes the push rod 324, causing the piston 323 to slide towards the first channel against the resistance of the spring 325. The movement of the piston 323 compresses the volume of the first channel, forcing the liquid 30 contained therein to flow into the second cylinder 322 connected to it. Because the cross-sectional area of ​​the second cylinder 322 is relatively small, the inflow of liquid 30 causes its internal liquid level to rise significantly, thus reliably contacting the detection end 40 of the liquid level switch 4 that extends into it, forming a conductive circuit. This design replaces elastic deformation with mechanical transmission, and uses the linear motion of the piston 323 to precisely control the flow of liquid 30, effectively improving the stability and reliability of liquid level changes, ensuring accurate circuit conduction under different installation forces, and further enhancing the safety and practicality of the power failure protection mechanism.

[0050] Furthermore, a first limiting part is provided in the mounting hole 110, and a second limiting part is provided on the rotating shaft 21 to cooperate with the first limiting part. The cooperation design of the first limiting part and the second limiting part can prevent the rotating shaft 21 from being inserted too deeply or too shallowly, and can ensure that the rotating shaft 21 of the air guide plate 2 can accurately reach the predetermined position, thereby ensuring that the detection container 3 can work normally.

[0051] Specifically, when the rotating shaft 21 is inserted into the mounting hole 110 to a predetermined depth, the first and second limiting parts cooperate to precisely restrict the position of the rotating shaft 21, ensuring that the force exerted by the rotating shaft 21 on the detection container 3 can be transmitted stably and effectively. This ensures that the elastic part 311 or the piston 323 can generate the corresponding deformation or displacement as designed, thereby triggering the liquid level switch 4 and forming a conductive circuit. Furthermore, this limiting design can also buffer the impact force when the rotating shaft 21 is inserted to a certain extent, protecting the detection container 3 from damage and extending its service life. Through the coordinated action of the first and second limiting parts, the entire installation process of the air conditioning guide plate 2 is safer and more reliable, effectively reducing safety hazards caused by improper installation.

[0052] In one embodiment, in conjunction with reference Figure 5 The air guide plate 2 includes a first air guide plate 2 and a second air guide plate 2, which are located on both sides of the mounting hole 110, and each has an independent rotating shaft 21 structure. Specifically, the first air guide plate 2 is provided with a first rotating shaft 201, and the second air guide plate 2 is provided with a second rotating shaft 202. These two rotating shafts 21 are inserted from both sides of the mounting hole 110, and work together to act on the detection container 3 to trigger the liquid level switch 4.

[0053] Specifically, when the first shaft 201 of the first air guide plate 2 is inserted into the mounting hole 110, a first force is applied to the detection container 3, such as squeezing the elastic bladder or pushing the push rod 324. This force causes the detection container 3 to generate a first liquid level increment. At this time, if the second air guide plate 2 is not installed, the first liquid level increment alone is insufficient to raise the liquid level of the liquid 30 to the trigger position. However, when the second shaft 202 of the second air guide plate 2 is also inserted into the mounting hole 110, a second force is applied to the detection container 3, generating a second liquid level increment. After these two liquid level increments are superimposed, the liquid level of the liquid 30 will rise to the trigger position and contact the detection end 40 of the liquid level switch 4, thereby forming a conductive circuit.

[0054] It can be seen that the air conditioner can only be powered on and operated when both the first air guide plate 2 and the second air guide plate 2 are correctly installed, effectively preventing the risk of electric shock to the user when disassembling part of the air guide plate 2. At the same time, the superimposed liquid level triggering mechanism also improves the accuracy and reliability of detection, reducing false triggering caused by misoperation or external interference.

[0055] In one embodiment, the housing 1 has multiple mounting holes 110, and multiple corresponding air guide plates 2 are also disposed near these mounting holes 110, forming a one-to-one installation relationship. To independently detect the installation status of each air guide plate 2, an independent detection container 3 and an independent liquid level switch 4 are provided for each mounting hole 110. Each detection container 3 is partially disposed within its corresponding mounting hole 110 (the specific structure can be as described in any of the aforementioned embodiments, such as an elastic bladder type or a piston 323 type). The detection end 40 of each liquid level switch 4 extends into its corresponding detection container 3. This design ensures that the installation action of each air guide plate 2 (i.e., its shaft 21 is inserted into the corresponding mounting hole 110) only triggers a liquid level change in the independent detection unit associated with it.

[0056] Furthermore, in terms of control logic, multiple level switches 4 are electrically connected in series to form a chain detection structure. This series connection requires all level switches 4 to be in the conducting state (i.e., all detection terminals 40 are in contact with the liquid 30 in their corresponding detection containers 3) in order for the entire main control circuit to form a closed circuit and power on the air conditioning unit.

[0057] Specifically, all level switches 4 will only be activated simultaneously if all air guide plates 2 are correctly installed and the liquid level 30 in all corresponding detection containers 3 rises to the trigger position. If even one air guide plate 2 is not installed or is not installed properly, the corresponding level switch 4 will be in the open state, the entire series circuit will not conduct, and the air conditioner will not be powered on. This control logic further reduces the risk of electric shock, because even if the user removes only one air guide plate 2, it will cause the entire circuit to disconnect, completely cutting off the power supply and preventing the exposure of some live parts. In addition, the series structure also has a fault self-checking function. When a certain level switch 4 malfunctions, the entire circuit cannot conduct, the air conditioner cannot start, and it can promptly remind users or maintenance personnel of potential safety hazards, further improving the safety of air conditioner use.

[0058] This application provides an air conditioner, including the indoor unit as described above. This air conditioner controls the power supply by monitoring the installation status of the air guide plate 2, significantly reducing the risk of electric shock caused by users or after-sales personnel neglecting to disconnect the power when disassembling the air guide plate 2. This establishes a reliable safety barrier during operation, greatly reducing the probability of accidents and protecting personnel safety. Furthermore, integrating the power-off mechanism into the air guide plate 2 installation structure eliminates the need for additional complex operations, reducing equipment damage caused by misoperation, lowering after-sales maintenance costs and safety management difficulties, and improving user experience and overall product competitiveness.

[0059] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The housing (1) has mounting holes (110) thereon; Air guide plate (2), on which a rotating shaft (21) is provided; A detection container (3) is provided with liquid (30) inside, and part of the detection container (3) is disposed in the mounting hole (110); A liquid level switch (4) is connected to the electrical control circuit of the indoor unit of the air conditioner. The detection end (40) of the liquid level switch (4) extends into the detection container (3). When the rotating shaft (21) is inserted into the mounting hole (110), it can apply a force to the detection container (3) to drive the liquid level of the liquid (30) to rise and contact the detection end (40), thereby forming a conductive circuit.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The detection container (3) includes: An elastic part (311) is disposed in the mounting hole (110), and the elastic part (311) has a receiving cavity; An extension (312) is connected to the elastic portion (311) and extends out of the mounting hole (110).

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The elastic part (311) is elastic silicone.

4. The indoor unit of the air conditioner according to claim 2, characterized in that, The cross-sectional area of ​​the elastic part (311) is larger than the cross-sectional area of ​​the extension part (312).

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The detection container (3) includes: The first cylindrical body (321) is disposed in the mounting hole (110); A second cylindrical body (322) is connected to the first cylindrical body (321) and extends out of the mounting hole (110); A piston (323) is slidably disposed inside the first cylinder (321) and divides the first cylinder (321) into a first channel and a second channel, the first channel being connected to the second cylinder (322); A push rod (324) is connected to the piston (323), one end of which is located in the second channel, and the other end extends out of the first cylinder (321) and into the mounting hole (110); A spring (325) is located in the second channel. One end of the spring (325) abuts against the inner wall of the second channel, and the other end abuts against the piston (323). When the rotating shaft (21) is inserted into the mounting hole (110), it pushes the piston (323) rod, driving the piston (323) to compress the volume of the first channel so that the liquid (30) flows from the first channel to the second cylinder (322).

6. The indoor unit of the air conditioner according to claim 1, characterized in that, A first limiting part is provided in the mounting hole (110), and a second limiting part that cooperates with the first limiting part is provided on the rotating shaft (21).

7. The indoor unit of the air conditioner according to claim 1, characterized in that, The air guide plate (2) includes a first air guide plate (2) and a second air guide plate (2). The first air guide plate (2) and the second air guide plate (2) are respectively located on both sides of the mounting hole (110). The first air guide plate (2) is provided with a first rotating shaft (201), and the second air guide plate (2) is provided with a second rotating shaft (202). When the first rotating shaft (201) is inserted into the mounting hole (110), it can apply a first force to the detection container (3) and cause it to generate a first liquid level increment. When the second rotating shaft (202) is inserted into the mounting hole (110), it can apply a second force to the detection container (3) and cause it to generate a second liquid level increment. The first liquid level increment and the second liquid level increment are superimposed to cause the liquid (30) level to rise to the trigger position and contact the detection end (40).

8. The indoor unit of the air conditioner according to claim 1, characterized in that, Multiple mounting holes (110) and multiple air guide plates (2) are provided, and multiple air guide plates (2) correspond one-to-one with multiple mounting holes (110). Multiple detection containers (3) and multiple liquid level switches (4) are provided, and multiple detection containers (3) correspond one-to-one with multiple mounting holes (110). The detection end (40) of each liquid level switch (4) extends into the corresponding detection container (3). Multiple liquid level switches (4) are electrically connected in series.

9. The indoor unit of an air conditioner according to any one of claims 1 to 8, characterized in that, The liquid level switch (4) is an electrode-type liquid level switch.

10. An air conditioner, characterized in that, Including the indoor unit of an air conditioner as described in any one of claims 1 to 9.

Images