Air conditioner indoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit comprises an indoor unit body and a safety protection assembly. A mounting cavity is formed in the indoor unit body; a discharge channel is formed in the safety protection assembly; the discharge channel has a conducting state and a cut-off state; one end of the safety protection assembly is installed on the indoor unit body, and the other end extends outdoors. And in the conducting state, the safety protection assembly is used for discharging the refrigerant leaked into the mounting cavity to the outside. By arranging the safety protection assembly, the refrigerant leaked into the mounting cavity can be discharged outdoors in time through the discharging channel of the safety protection assembly, the refrigerant is prevented from being gathered in the mounting cavity, explosion is prevented, and the problem that in the prior art, the safety risk is high due to the fact that a detection alarm mode is adopted to deal with refrigerant leakage is solved.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to an indoor air conditioner unit and an air conditioner. Background Technology

[0002] With the development of the air conditioning and refrigeration industry, people are increasingly favoring the use of environmentally friendly refrigerants. For example, R290 refrigerant, whose main component is propane, is an extremely flammable and explosive refrigerant, but it has an ozone depletion potential (ODP) of 0 and is fluorine-free; its global warming potential (GWP) is also extremely low, making it a very environmentally friendly refrigerant. When using R290, an environmentally friendly but flammable and explosive refrigerant, in air conditioners, its concentration must be strictly controlled to prevent explosions.

[0003] Currently, the industry typically uses detection alarms to alert users when refrigerant concentrations exceed the standard and ventilation is required. This method is feasible for refrigerants with low hazard (such as R32), but it still poses a significant safety risk for flammable and explosive refrigerants.

[0004] Therefore, how to reduce the safety risks caused by refrigerant leakage is an urgent problem that the industry needs to solve. Utility Model Content

[0005] This utility model provides an indoor air conditioning unit and an air conditioner to solve the problem of high safety risks associated with refrigerant leakage in the prior art, which relies on detection alarms.

[0006] The first aspect of this utility model provides an indoor unit for an air conditioner, comprising:

[0007] The indoor unit body has an internal mounting cavity;

[0008] The safety protection component has an internal discharge channel; the discharge channel has a conducting state and a closed state; one end of the safety protection component is installed on the indoor unit body, and the other end extends to the outside; in the conducting state, the safety protection component is used to discharge the refrigerant leaked into the installation cavity to the outside.

[0009] The air conditioner indoor unit provided by this utility model also includes:

[0010] A detection component is used to detect the refrigerant content within the mounting cavity;

[0011] The control component is electrically connected to both the detection component and the safety protection component.

[0012] According to the air conditioner indoor unit provided by this utility model, the safety protection component includes:

[0013] The discharge pipe has a discharge channel formed inside; one end of the discharge pipe is connected to the mounting cavity, and the other end extends to the outside.

[0014] A first switching element is installed on the discharge pipe to switch the discharge channel between the on state and the off state.

[0015] According to the air conditioner indoor unit provided by this utility model, the indoor unit body is further provided with an outlet, the outlet being connected to the mounting cavity; the safety protection component further includes:

[0016] A connector is installed at the outlet; the connector is detachably connected to one end of the discharge pipe.

[0017] According to the air conditioner indoor unit provided by this utility model, an air inlet is provided on the indoor unit body, and a fan is installed in the mounting cavity; the air inlet is connected to the mounting cavity.

[0018] The air conditioner indoor unit provided by this utility model also includes:

[0019] An air intake adjustment component is installed on the indoor unit body and is used to adjust the opening degree of the air intake.

[0020] The air conditioner indoor unit provided by this utility model includes at least two safety protection components.

[0021] The air conditioner indoor unit provided by this utility model also includes:

[0022] An alarm component is electrically connected to the control component.

[0023] The second aspect of this utility model provides an air conditioner, including the indoor unit of any of the above-mentioned air conditioners.

[0024] The air conditioner provided by this utility model also includes:

[0025] An outdoor unit is connected to the indoor unit of the air conditioner.

[0026] The air conditioner indoor unit provided by this utility model, by setting up a safety protection component, can promptly discharge the refrigerant leaked into the installation cavity to the outside through the discharge channel of the safety protection component, preventing the refrigerant from accumulating in the installation cavity and thus preventing an explosion. This solves the problem of the high safety risk of refrigerant leakage that exists in the prior art when using detection alarms.

[0027] The air conditioner provided by this utility model includes the above-mentioned indoor air conditioner unit, and therefore has at least the above-mentioned advantages. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is one of the structural schematic diagrams of the indoor unit of the air conditioner provided by this utility model.

[0030] Figure 2 yes Figure 1 The diagram shows the structure of the indoor unit of the air conditioner from the left-hand perspective.

[0031] Figure 3 This is the second structural schematic diagram of the indoor unit of the air conditioner provided by this utility model.

[0032] Figure label:

[0033] 100. Indoor unit body; 110. Fan;

[0034] 200. Safety protection components;

[0035] 300. Detection components;

[0036] 400. Air intake adjustment assembly. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0040] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The following is combined Figures 1 to 3 The structure and working principle of the indoor unit of the air conditioner of this utility model are described in detail.

[0043] like Figures 1 to 3 As shown, a specific embodiment of the first aspect of this utility model provides an indoor air conditioner unit. The indoor air conditioner unit includes an indoor unit body 100 and a safety protection component 200; the indoor unit body 100 has an installation cavity inside; the safety protection component 200 has a discharge channel inside; the discharge channel has a conducting state and a closed state; one end of the safety protection component 200 is installed on the indoor unit body 100, and the other end extends to the outside; in the conducting state, the safety protection component 200 is used to discharge refrigerant leaked into the installation cavity to the outside.

[0044] In this embodiment, by setting up a safety protection component 200, the refrigerant leaked into the installation cavity can be discharged to the outside in a timely manner through the discharge channel of the safety protection component 200, preventing the refrigerant from accumulating in the installation cavity and thus preventing an explosion. This solves the problem of the high safety risk associated with refrigerant leakage in the prior art, which relies on detection and alarm methods.

[0045] In addition, venting the refrigerant outdoors allows for rapid refrigerant removal, reducing the possibility of personnel exposure to harmful chemicals. The safety protection component 200 is integrated as an add-on module into the existing indoor unit 100, requiring minimal adjustments to the production line.

[0046] Specifically, when refrigerant (such as R32 or R290) leaks into the installation cavity due to pipe rupture or seal failure, the safety protection component 200 switches from a closed state to a conductive state, thereby quickly guiding the refrigerant outdoors and preventing it from accumulating indoors to a flammable concentration (the lower flammability limit of R32 is 14.4% by volume). When it is not necessary to discharge the refrigerant from the installation cavity, or in other words, when no refrigerant leak has occurred, the discharge channel remains closed, preventing outdoor dust, moisture, or foreign objects from entering the indoor unit 100 in reverse, thus ensuring the equipment's lifespan.

[0047] It is understandable that the status of the discharge channel can be switched manually or automatically. For example, users can manually switch the status of the discharge channel at set intervals.

[0048] In some embodiments, the indoor unit of the air conditioner further includes a detection component 300 and a control component; the detection component 300 is used to detect the refrigerant content in the installation cavity; the control component is electrically connected to both the detection component 300 and the safety protection component 200. Specifically, when the refrigerant content exceeds a threshold, the control component outputs a discharge control command to control the discharge channel of the safety protection component 200 to switch from a closed state to a conductive state. At this time, the refrigerant in the installation cavity can be discharged outdoors, preventing the refrigerant from accumulating to the flammable critical point and improving safety. When the refrigerant content is not higher than the threshold, the control component outputs a cut-off control command to control the discharge channel of the safety protection component 200 to switch from a conductive state to a closed state. This design enables dynamic response to leaks and explosion-proof features.

[0049] In addition, threshold control prevents false triggering caused by normal trace infiltration or brief fluctuations. The design of the detection component 300 and the switchable discharge channel further optimizes the safety and intelligence level of the air conditioning indoor unit.

[0050] Furthermore, the detection component 300 includes a refrigerant concentration detection sensor; the refrigerant concentration detection sensor is installed in the mounting cavity and is used to detect the refrigerant concentration in the mounting cavity.

[0051] Furthermore, the control components include, but are not limited to, microcontroller units (MCUs).

[0052] Optionally, the control component can share the MCU with the indoor unit 100. In other words, an additional control chip can be integrated on the existing main control board of the indoor unit 100. The input of this control chip is connected to the detection component 300, and the output is connected to the safety protection component 200.

[0053] Furthermore, the indoor unit of the air conditioner also includes an alarm component; the alarm component is electrically connected to the control component. When the refrigerant content exceeds the threshold, the control component outputs a control command to activate the alarm component, reminding the user to open the windows for ventilation.

[0054] Optionally, alarm components include, but are not limited to, audible alarms and / or visual alarms.

[0055] In some embodiments, the safety protection component 200 includes a discharge pipe and a first switching element; a discharge channel is formed inside the discharge pipe; one end of the discharge pipe communicates with the installation cavity, and the other end extends to the outside; the first switching element is installed on the discharge pipe and is used to switch the discharge channel between a conducting state and a cut-off state. The discharge pipe directly connects the installation cavity and the outside, forming a shorter leakage path, which can quickly discharge the flammable refrigerant to the outside after a leak is detected, avoiding accumulation indoors to the lower explosive limit. The first switching element directly controls the pipe's on / off state without a complex transmission mechanism, reducing the failure rate.

[0056] Furthermore, the first switching element can be a normally closed solenoid valve; when not energized, the normally closed solenoid valve is in the closed state, and the discharge channel is in the cut-off state. When energized, the normally closed solenoid valve opens, and the discharge channel is in the open state.

[0057] Specifically, an outlet is provided on the indoor unit body 100, and a discharge pipe is installed on the indoor unit body 100 and connected to the installation cavity through the outlet; the first switch can be set at the outlet or at the discharge channel; the first switch has an open state and a closed state; in the open state, the discharge channel is in a conductive state; in the closed state, the discharge channel is in a cut-off state.

[0058] It is understandable that the first switch can be opened or closed manually, or can be opened or closed under the control of the control command of the control component.

[0059] Optionally, the first switch is electrically connected to the control component. The control component outputs a control command to control the first switch to switch from a closed state to an open state; the control component also outputs a cut-off control command to control the first switch to switch from an open state to a closed state.

[0060] Optionally, the discharge pipe can be a copper pipe or an aluminum corrugated pipe.

[0061] Optionally, the discharge pipe can be installed at the discharge port of the indoor unit body 100 by means of threaded assembly.

[0062] Furthermore, the indoor unit body 100 is also provided with an outlet, which communicates with the installation cavity; the safety protection component 200 also includes a connector; the connector is installed at the outlet; the connector is detachably connected to one end of the discharge pipe. This design can improve the practicality and ease of maintenance of the safety protection component 200, reduce maintenance costs, and increase the speed of disassembly and assembly.

[0063] Optionally, the connector can be threaded onto the outlet.

[0064] Optionally, the connectors include, but are not limited to, quick-release couplings.

[0065] In some embodiments, the indoor unit body 100 is provided with an air inlet, and a fan 110 is installed in the mounting cavity; the air inlet is connected to the mounting cavity. Specifically, when it is necessary to discharge the refrigerant in the mounting cavity to the outside, the fan 110 can be started, and indoor air enters the mounting cavity from the air inlet. Under the action of the fan 110, the refrigerant in the mounting cavity is carried into the discharge channel, thereby being discharged to the outside, further increasing the speed of refrigerant discharge.

[0066] Furthermore, fan 110 includes a cross-flow fan.

[0067] In some embodiments, the indoor unit of the air conditioner also includes an air intake adjustment component 400; the air intake adjustment component 400 is disposed on the indoor unit body 100 and is used to adjust the opening of the air intake. With this design, the air intake volume can be adjusted through the air intake adjustment component 400 to adapt to different application scenarios.

[0068] Furthermore, the air intake adjustment assembly 400 includes a second switch element; the second switch element is rotatably engaged with the indoor unit body 100. Specifically, the control assembly is electrically connected to the second switch element; the control assembly can control the rotation of the second switch element to adjust the opening degree of the air intake.

[0069] Optionally, the second switching element includes a damper and a drive element; the damper is located at the air inlet and rotates with the indoor unit body 100 to open or close the air inlet; the drive element is connected to the damper and is used to drive the damper to rotate to adjust the opening of the air inlet.

[0070] Optional, the drive components include, but are not limited to, motors.

[0071] In some embodiments, the indoor unit of the air conditioner includes at least two safety protection components 200. Increasing the number of safety protection components 200 can further improve the refrigerant discharge rate.

[0072] Furthermore, the indoor unit of the air conditioner includes two safety protection components 200; the two safety protection components 200 are symmetrically arranged on both sides of the indoor unit body 100. This improves the refrigerant discharge speed while maintaining aesthetics.

[0073] Combination Figure 1 , Figure 2 and Figure 3 The working process of the indoor unit of the air conditioner according to this utility model is described in detail. The working process of the indoor unit of the air conditioner in this embodiment includes:

[0074] The detection component 300 is used to detect the refrigerant content in the installation cavity. When the refrigerant content exceeds the threshold, the control component outputs a discharge control command to close the air outlet of the indoor unit 100 (i.e., the air outlet that outputs cold or hot air to the room). Then, it controls the first switch to switch from the closed state to the open state, so that the discharge channel switches from the cut-off state to the conductive state. It can also control the second switch to close halfway to reduce the opening of the air inlet. The fan 110 continues to run, so that the refrigerant in the installation cavity can be quickly discharged into the discharge channel and finally discharged to the outside.

[0075] A specific embodiment of the second aspect of this utility model provides an air conditioner. This air conditioner includes the indoor unit of any of the above embodiments. Therefore, the air conditioner of this embodiment has at least the advantages described above, which will not be repeated here.

[0076] Furthermore, the air conditioner also includes an outdoor unit; the outdoor unit is connected to the indoor unit of the air conditioner to form a refrigerant circulation loop.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The indoor unit body (100) has an internal mounting cavity; Safety protection component (200) has an internal discharge channel; The discharge channel has a conducting state and a closed state; one end of the safety protection component (200) is installed on the indoor unit body (100), and the other end extends to the outside; in the conducting state, the safety protection component (200) is used to discharge the refrigerant leaked into the installation cavity to the outside.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, Also includes: Detection component (300) is used to detect the refrigerant content in the mounting cavity; The control component is electrically connected to both the detection component (300) and the safety protection component (200).

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The safety protection component (200) includes: The discharge pipe has a discharge channel formed inside; one end of the discharge pipe is connected to the mounting cavity, and the other end extends to the outside. A first switching element is installed on the discharge pipe to switch the discharge channel between the on state and the off state.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The indoor unit body (100) is also provided with an outlet, which communicates with the mounting cavity; the safety protection component (200) further includes: A connector is installed at the outlet; the connector is detachably connected to one end of the discharge pipe.

5. The indoor unit of the air conditioner according to claim 1, characterized in that, An air inlet is provided on the indoor unit body (100), and a fan (110) is installed in the mounting cavity; the air inlet is connected to the mounting cavity.

6. The indoor unit of the air conditioner according to claim 5, characterized in that, Also includes: An air intake adjustment component (400) is disposed on the indoor unit body (100) and is used to adjust the opening degree of the air intake.

7. The air conditioning indoor unit according to any one of claims 1 to 6, characterized in that, Includes at least two of the aforementioned security protection components (200).

8. The indoor unit of the air conditioner according to claim 2, characterized in that, Also includes: An alarm component is electrically connected to the control component.

9. An air conditioner, characterized in that, Includes the air conditioning indoor unit as described in any one of claims 1 to 8.

10. The air conditioner according to claim 9, characterized in that, Also includes: An outdoor unit is connected to the indoor unit of the air conditioner.

Images