CN221076627U - Air conditioner indoor unit and air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit and an air conditioner, wherein a metal conducting piece is additionally arranged on a filter screen, a first detection switch module is additionally arranged in a space of one side of the filter screen, which is far away from an air inlet, and a second detection switch is additionally arranged in a space of one side of the filter screen, which is close to the air inlet, so that the metal conducting piece can be conducted with a first detection end and a second detection end of the first detection switch module or a third detection end and a fourth detection end of the second detection switch module in the movement process of the filter screen, the movement position of the filter screen is fed back, the phenomenon of blocking rotation of a filter screen stepping motor can be effectively avoided, the performance of the filter screen stepping motor is prevented from being influenced, and the service life of the filter screen stepping motor is prolonged.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner.

Background

At the air inlet of the air conditioning indoor unit, a filter screen is usually provided to filter the air entering the air conditioning indoor unit. However, after the air conditioner indoor unit is installed and used for a period of time, dust on the filter screen can be accumulated gradually, so that the filter screen is cleaned by arranging a cleaning mechanism at present.

The current air conditioner self-cleaning scheme is that a filter screen can have a resetting process when the air conditioner is powered off or powered on, in order to ensure that the filter screen is reset effectively in place, a filter screen stepping motor is usually driven according to the maximum stroke, but in actual operation, the stroke is far greater than the resetting stroke required by the filter screen, so that the filter screen stepping motor is blocked, the performance of the filter screen stepping motor is influenced, the service life of the filter screen stepping motor is shortened, and the use of the air conditioner is influenced.

Disclosure of utility model

The utility model provides an air conditioner indoor unit and an air conditioner, which are used for solving the problem that the performance of a filter screen stepping motor is affected by the phenomenon that the filter screen stepping motor is blocked in the resetting process of the filter screen in the prior art.

To achieve the above object, an embodiment of the present utility model provides an indoor unit of an air conditioner, including:

The top side of the shell is provided with an air inlet;

the filter screen is arranged in the shell and covers the air inlet;

a self-cleaning member in contact with the screen surface of the screen;

the filter screen driving assembly is connected with the filter screen and used for driving the filter screen to reciprocate;

a metal conducting member provided on the filter screen;

The first detection switch module is provided with a first detection end and a second detection end which are both arranged in a space of one side of the filter screen, which is far away from the air inlet, and the metal conducting piece can be contacted with and far away from the first detection end and the second detection end simultaneously in the movement process of the filter screen;

And the second detection switch module is characterized in that a third detection end and a fourth detection end of the second detection switch module are arranged in a space of one side of the filter screen, which is close to the air inlet, and the metal conducting piece can be contacted with and separated from the third detection end and the fourth detection end simultaneously in the movement process of the filter screen.

As an improvement of the above solution, the first detection switch module includes:

the first elastic piece is used as a first detection end of the first detection switch module;

The second elastic piece is used as a second detection end of the first detection switch module;

And one end of the first detection switch unit is connected with the first elastic piece, and the other end of the first detection switch unit is connected with the second elastic piece.

As an improvement of the above solution, the second detection switch module includes:

the third elastic piece is used as a third detection end of the second detection switch module;

a fourth elastic piece, which is used as a fourth detection end of the second detection switch module;

And one end of the second detection switch unit is connected with the third elastic piece, and the other end of the second detection switch unit is connected with the fourth elastic piece.

As an improvement of the above solution, the screen driving assembly includes:

The filter screen transmission mechanism is connected with the filter screen and is used for driving the filter screen to move;

And the filter screen stepping motor is connected with the filter screen transmission mechanism and is used for driving the filter screen transmission mechanism to rotate.

As an improvement of the above solution, the filter screen transmission mechanism includes:

a first reel connected to one end of the screen;

a second reel connected with the other end of the filter screen;

The filter screen is tensioned between the first scroll and the second scroll, and the filter screen stepping motor can drive the first scroll and the second scroll to rotate along opposite directions.

As an improvement of the above solution, the air conditioner indoor unit further includes:

and the cleaning driving assembly is connected with the self-cleaning piece and used for driving the self-cleaning piece to clean the filter screen.

As an improvement of the above, the cleaning drive assembly includes:

The cleaning transmission mechanism is connected with the self-cleaning piece and used for driving the self-cleaning piece to move;

and the cleaning stepping motor is connected with the cleaning transmission mechanism and is used for driving the cleaning transmission mechanism to rotate.

In order to achieve the above objective, an embodiment of the present utility model further provides an air conditioner, which includes an air conditioner outdoor unit, and an air conditioner indoor unit as described above.

Compared with the prior art, the air conditioner indoor unit and the air conditioner provided by the embodiment of the utility model have the advantages that the metal conducting piece is additionally arranged on the filter screen, the first detection switch module is additionally arranged in the space of one side, far away from the air inlet, of the filter screen, and the second detection switch is additionally arranged in the space of one side, close to the air inlet, of the filter screen, so that the metal conducting piece can be conducted with the first detection end and the second detection end of the first detection switch module or the third detection end and the fourth detection end of the second detection switch module in the movement process of the filter screen, the movement position of the filter screen is further fed back, the phenomenon of blocking of the filter screen stepping motor can be effectively avoided, the performance of the filter screen stepping motor is prevented from being influenced, and the service life of the filter screen stepping motor is prolonged.

Drawings

Fig. 1 is a block diagram of a three-dimensional structure of an air conditioner according to an embodiment of the present utility model;

Fig. 2 is a block diagram schematically showing the structure of a control system of an air conditioner according to an embodiment of the present utility model;

fig. 3 is a block diagram of an indoor unit of an air conditioner according to an embodiment of the present utility model;

FIG. 4 is a block diagram of a filter screen according to an embodiment of the present utility model;

FIG. 5 is another block diagram of a filter screen according to an embodiment of the present utility model;

Fig. 6 is a circuit diagram of a first detection switch according to an embodiment of the present utility model;

fig. 7 is a circuit diagram of a second detection switch according to an embodiment of the present utility model;

FIG. 8 is a block diagram of a filter screen according to an embodiment of the present utility model;

fig. 9 is a circuit diagram of a master MCU according to an embodiment of the present utility model;

Fig. 10 is a connection block diagram of a master MCU according to an embodiment of the present utility model.

100, Indoor machine; 200. an outdoor unit; 300. a remote controller; 1. a housing; 2. a filter screen; 21. a metal conducting member; 3. a self-cleaning member; 41. a filter screen stepper motor; 42. a first reel; 43. a second reel; 51. a first elastic sheet; 52. a second spring plate; 53. a first detection switch unit; 531. one end of the first detection switch unit; 532. the other end of the first detection switch unit; 61. a third spring plate; 62. a fourth spring plate; 63. a second detection switch unit; 631. one end of the second detection switch unit; 632. the other end of the second detection switch unit; 71. a step motor is cleaned; 72. cleaning the transmission mechanism.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or the number of technical features indicated. Thus, a feature defining "a first" or "a second" may include one or more of the feature explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The air conditioner of the present utility model performs a refrigerating cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies a refrigerant to the air that has been conditioned and heat exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low temperature and low pressure state to the compressor, and the evaporator can achieve a refrigerating effect by exchanging heat with a material to be cooled using latent heat of evaporation of the refrigerant. The air conditioner may adjust the temperature of the indoor space throughout the cycle.

An outdoor unit of an air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, an indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater of a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler of a cooling mode.

The air conditioner shown in fig. 1 includes: the indoor unit 100 of the air conditioner is, for example, an indoor unit (shown in the figure), and the indoor unit is generally mounted on an indoor wall surface WL or the like. For another example, an indoor unit (not shown) is also an indoor unit of an air conditioner.

The air conditioner outdoor unit 200 is generally installed outdoors for heat exchange in an indoor environment. In fig. 1, the air conditioning outdoor unit 200 is located outdoors on the opposite side of the air conditioning indoor unit 100 across the wall surface WL, and the air conditioning outdoor unit 200 is shown by a broken line.

The air conditioner is provided with a refrigerant circuit, and can execute a vapor compression refrigeration cycle by circulating a refrigerant in the refrigerant circuit. The connection pipe is connected to the air conditioning indoor unit 100 and the air conditioning outdoor unit 200 to form a refrigerant circuit in which a refrigerant circulates.

In addition, as shown in fig. 2, the air conditioner has a main control MCU to control the operation of each component in the air conditioner inside, so that each component of the air conditioner operates to achieve each predetermined function of the air conditioner. A remote controller 300 is attached to the air conditioner, and the remote controller 300 has a function of communicating with the main control MCU using, for example, infrared rays or other communication means. The remote controller 300 is used for various controls of the air conditioner by a user, and interaction between the user and the air conditioner is achieved.

Referring to fig. 3 to 5, an indoor unit of an air conditioner according to an embodiment of the present utility model includes:

The top side of the shell 1 is provided with an air inlet;

the filter screen 2 is arranged in the shell 1 and covers the air inlet;

a self-cleaning member 3 in contact with the screen surface of the screen 2;

The filter screen driving assembly is connected with the filter screen 2 and is used for driving the filter screen 2 to reciprocate;

A metal conduction member 21 provided on the screen 2;

The first detection switch module is provided with a first detection end and a second detection end which are both arranged in the space of one side of the filter screen 2 far away from the air inlet, and the metal conducting piece 21 can be simultaneously contacted with and far away from the first detection end and the second detection end in the movement process of the filter screen 2;

And the second detection switch module is provided with a third detection end and a fourth detection end which are both arranged in the space of one side of the filter screen 2, which is close to the air inlet, and the metal conducting piece 21 can be simultaneously contacted and separated from the third detection end and the fourth detection end in the movement process of the filter screen 2.

It is to be understood that the filter screen driving assembly may drive the filter screen 2 to reciprocate in a space on one side of the filter screen 2 away from the air inlet and a space on one side of the filter screen 2 close to the air inlet, during the movement of the filter screen 2, the filter screen 2 and the self-cleaning member 3 move relatively, the filter screen 2 and the self-cleaning member 3 always contact during the relative movement, so that the self-cleaning member 3 and the filter screen 2 are always rubbed during the relative movement, and dust collected on the filter screen 2 is removed, and the self-cleaning member 3 may be a brush. The metal conducting member 21 is a piece of metal implanted in the edge of the filter screen, and rotates synchronously with the filter screen 2.

For example, during the movement of the filter screen 2, the metal conducting member 21 rotates in synchronization with the filter screen, when the metal conducting member 21 moves in a space of one side of the filter screen 2 away from the air inlet, for example, the upper end of the filter screen 2, the first detecting end and the second detecting end are simultaneously contacted with the metal conducting member 21, the first detecting end and the second detecting end are conducted through the metal conducting member 21, the first detecting switch module outputs a low level, at this time, the main control MCU determines that the filter screen 2 has moved in place counterclockwise, and the filter screen stepping motor 41 stops driving counterclockwise.

When the metal conducting member 21 moves in the space of the filter screen 2 near the side of the air inlet, such as the lower end of the filter screen 2, the third detecting end and the fourth detecting end are simultaneously contacted with the metal conducting member 21, the third detecting end and the fourth detecting end are conducted through the metal conducting member 21, the second detecting switch module outputs a low level, at this time, the main control MCU determines that the filter screen 2 has been moved clockwise in place, and the filter screen stepping motor 41 stops driving clockwise.

According to the embodiment of the utility model, the actual running position of the filter screen 2 is fed back by implanting the metal conducting piece 21 into the filter screen 2 and synchronizing the running of the filter screen 2, and the position detection is completed by the connection and disconnection conditions of the first detection end, the second detection end and the metal conducting piece 21 and the connection and disconnection conditions of the third detection end, the fourth detection end and the metal conducting piece 21, so that the problem of locked rotation in the movement process of the filter screen stepping motor 41 caused by no position positioning in the actual running of the filter screen 2 is solved, the user experience effect is improved, the reliability of the filter screen stepping motor is improved, and the service life of the filter screen stepping motor is prolonged.

In an alternative embodiment, the first detection switch module includes:

a first elastic piece 51 serving as a first detection end of the first detection switch module;

A second spring plate 52 serving as a second detection end of the first detection switch module;

And one end of the first detection switch unit 53 is connected with 531 the first elastic piece 51, and the other end 532 is connected with the second elastic piece 52.

As shown in fig. 6, the first elastic piece 51 is connected to one end 531 of the first detecting switch unit 53, the second elastic piece 52 is connected to the other end 532 of the first detecting switch unit 53, the first detecting switch unit 53 is responsible for detecting the on/off condition of the first elastic piece 51 and the second elastic piece 52, two ends of the switch K1 in the first detecting switch unit 53 are respectively connected to the first elastic piece 51 and the second elastic piece 52, and when the first elastic piece 51 and the second elastic piece 52 are not conducted, they are at a high level, and when the first elastic piece 51 and the second elastic piece 52 are conducted through a metal conducting piece, they are at a low level.

In an alternative embodiment, the second detection switch module includes:

A third elastic piece 61 serving as a third detection end of the second detection switch module;

A fourth elastic piece 62 serving as a fourth detection end of the second detection switch module;

The second detection switch unit 63 has one end 631 connected to the third elastic piece 61 and the other end 632 connected to the fourth elastic piece 62.

As shown in fig. 7, the third elastic piece 61 is connected to one end 631 of the second detection switch unit 63, the fourth elastic piece 62 is connected to the other end 632 of the second detection switch unit 63, the second detection switch unit 63 is responsible for detecting the on/off condition of the third elastic piece 61 and the fourth elastic piece 62, two ends of the switch K2 in the second detection switch unit 63 are respectively connected to the third elastic piece 61 and the fourth elastic piece 62, and when the third elastic piece 61 and the fourth elastic piece 62 are not conducted, they are at a high level, and when the third elastic piece 61 and the fourth elastic piece 62 are conducted by a metal conducting piece, they are at a low level.

In an alternative embodiment, the screen drive assembly includes:

The filter screen transmission mechanism is connected with the filter screen 2 and is used for driving the filter screen 2 to move;

And the filter screen stepping motor 41 is connected with the filter screen transmission mechanism and is used for driving the filter screen transmission mechanism to rotate.

It can be appreciated that the filter screen 2 is a structure with two fixed ends and capable of rotating clockwise or anticlockwise along the filter screen transmission mechanism; the filter screen transmission mechanism rotates synchronously with the filter screen stepping motor 41 to drive the filter screen 2 to rotate; the filter screen stepping motor 41 is a driving device of the filter screen transmission mechanism, and drives the filter screen transmission mechanism to rotate; the motor air conditioner is commonly controlled by four phases and eight beats, and the rotation speed and the rotation direction of the motor air conditioner can be controlled by different driving pulses.

In an alternative embodiment, as shown in fig. 8, the screen drive mechanism includes:

a first reel 42 connected to one end of the screen 2;

a second reel 43 connected to the other end of the screen 2;

The filter screen 2 is tensioned between the first reel 42 and the second reel 43, and the rotation of the filter screen stepper motor 41 can drive the first reel 42 and the second reel 43 to rotate in opposite directions.

In the embodiment of the utility model, the filter screen transmission mechanism comprises a first scroll 42 and a second scroll 43; the first reel 42 extends from side to side and is rotatably mounted on the base of the screen 2; the second reel 43 extends right and left and is rotatably mounted on the base of the sieve 2,

The second reel 43 and the first reel 42 are arranged at intervals on the base, one end of the filter screen 2 is connected to the first reel 42, the other end of the filter screen 2 is connected to the second reel 43, and the filter screen 2 is tensioned between the first reel 42 and the second reel 43.

The filter screen 2 is rolled up and unrolled on the first scroll 42 and the second scroll 43, so that the filter screen 2 can be ensured to be tensioned all the time and stably move relative to the self-cleaning piece 3, and further, the rotation of the filter screen stepping motor 41 can drive the first scroll 42 and the second scroll 43 to rotate in opposite directions.

In an alternative embodiment, the indoor unit of the air conditioner further includes:

And the cleaning driving assembly is connected with the self-cleaning piece 3 and is used for driving the self-cleaning piece 3 to clean the filter screen 2.

In an alternative embodiment, the cleaning drive assembly includes:

A cleaning transmission mechanism 72 connected with the cleaning member 3 for driving the cleaning member 3 to move;

And a cleaning step motor 71 connected to the cleaning transmission mechanism 72 for driving the cleaning transmission mechanism 72 to rotate.

It can be understood that the cleaning stepper motor 71 is a driving device of the cleaning transmission mechanism 72, and is responsible for driving the cleaning transmission mechanism 72 to rotate, the motor air conditioner is usually controlled by four-phase eight-beat, and the rotation speed and the rotation direction of the motor air conditioner can be controlled by different driving pulses; the cleaning transmission mechanism 72 and the cleaning stepping motor 71 synchronously rotate to drive the self-cleaning piece 3 to rotate; the self-cleaning element 3 is responsible for cleaning the filter screen 2.

In the embodiment of the utility model, the main control MCU is responsible for controlling the cleaning of the whole filter screen, and controls and drives the filter screen stepping motor through ports IO1, IO2, IO3 and IO4, controls and drives the cleaning stepping motor through ports IO5, IO6, IO7 and IO8, detects the second detection switch module through port IO9, detects the first detection switch module through IO10, and the specific connection is shown in figures 9-10; the step motor driving circuit is responsible for driving the filter screen step motor and the cleaning step motor, and mainly comprises power driving devices such as Darlington and the like.

Compared with the prior art, the air conditioner indoor unit and the air conditioner provided by the embodiment of the utility model have the advantages that the metal conducting piece is additionally arranged on the filter screen, the first detection switch module is additionally arranged in the space of one side, far away from the air inlet, of the filter screen, and the second detection switch is additionally arranged in the space of one side, close to the air inlet, of the filter screen, so that the metal conducting piece can be conducted with the first detection end and the second detection end of the first detection switch module or the third detection end and the fourth detection end of the second detection switch module in the movement process of the filter screen, the movement position of the filter screen is further fed back, the phenomenon of blocking of the filter screen stepping motor can be effectively avoided, the performance of the filter screen stepping motor is prevented from being influenced, and the service life of the filter screen stepping motor is prolonged.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.

Claims (8)

1. An air conditioning indoor unit, comprising:

The top side of the shell is provided with an air inlet;

the filter screen is arranged in the shell and covers the air inlet;

a self-cleaning member in contact with the screen surface of the screen;

the filter screen driving assembly is connected with the filter screen and used for driving the filter screen to reciprocate;

a metal conducting member provided on the filter screen;

The first detection switch module is provided with a first detection end and a second detection end which are both arranged in a space of one side of the filter screen, which is far away from the air inlet, and the metal conducting piece can be contacted with and far away from the first detection end and the second detection end simultaneously in the movement process of the filter screen;

And the second detection switch module is characterized in that a third detection end and a fourth detection end of the second detection switch module are arranged in a space of one side of the filter screen, which is close to the air inlet, and the metal conducting piece can be contacted with and separated from the third detection end and the fourth detection end simultaneously in the movement process of the filter screen.

2. The indoor unit of claim 1, wherein the first detection switch module comprises:

the first elastic piece is used as a first detection end of the first detection switch module;

The second elastic piece is used as a second detection end of the first detection switch module;

And one end of the first detection switch unit is connected with the first elastic piece, and the other end of the first detection switch unit is connected with the second elastic piece.

3. The indoor unit of claim 1, wherein the second detection switch module comprises:

the third elastic piece is used as a third detection end of the second detection switch module;

a fourth elastic piece, which is used as a fourth detection end of the second detection switch module;

And one end of the second detection switch unit is connected with the third elastic piece, and the other end of the second detection switch unit is connected with the fourth elastic piece.

4. The air conditioning indoor unit of claim 1, wherein the screen drive assembly comprises:

The filter screen transmission mechanism is connected with the filter screen and is used for driving the filter screen to move;

And the filter screen stepping motor is connected with the filter screen transmission mechanism and is used for driving the filter screen transmission mechanism to rotate.

5. The indoor unit of claim 4, wherein the screen transmission mechanism comprises:

a first reel connected to one end of the screen;

a second reel connected with the other end of the filter screen;

The filter screen is tensioned between the first scroll and the second scroll, and the filter screen stepping motor can drive the first scroll and the second scroll to rotate along opposite directions.

6. The air conditioning indoor unit of claim 1, further comprising:

and the cleaning driving assembly is connected with the self-cleaning piece and used for driving the self-cleaning piece to clean the filter screen.

7. The air conditioning indoor unit of claim 6, wherein the cleaning drive assembly comprises:

The cleaning transmission mechanism is connected with the self-cleaning piece and used for driving the self-cleaning piece to move;

and the cleaning stepping motor is connected with the cleaning transmission mechanism and is used for driving the cleaning transmission mechanism to rotate.

8. An air conditioner comprising an air conditioner outdoor unit, and an air conditioner indoor unit according to any one of claims 1 to 7.