An air conditioner

Abstract

The utility model discloses an air conditioner, comprising: an indoor unit, on which a main control unit is arranged; a wire controller; a lamp, a first control switch and a second control switch are also arranged on the indoor main control board; one end of the first control switch and one end of the second control switch are respectively connected to one end of the lamp; the first control switch and the second control switch are switchably turned on; the other end of the lamp is connected to a neutral line of a power supply; the live line of a power supply is connected to the other end of the first control switch and the other end of the second control switch through a user switch switch; a switch element, the live line of a power supply is connected to the connection position between the power supply end of the indoor main control board and one end of the switch element, and the other end of the switch element is connected to any one of the other end of the first control switch and the other end of the second control switch. The utility model can control the lamp by using a wire controller and / or a user switch according to the demand, so that the user can use it flexibly.

Description

Technical Field

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

[0002] With the improvement of air-conditioning technology and the increasing requirements of users for installation space, installing lights on surface-mounted air conditioners has become a common design solution.

[0003] This light design is controlled by the wire controller on the air conditioner. However, this control method cannot be used when the air conditioner or the wire controller fails. In addition, when the user does not use the air conditioner, the light cannot be used when the air conditioner is powered off. If the light is used, the air conditioning system needs to be powered, so the standby power consumption of the entire air conditioning system will also be wasted.

[0004] Therefore, how to facilitate users to flexibly control switches has become a demand.

[0005] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0006] In response to the problems pointed out in the background technology, the present application provides an air conditioner, which can control the light using a wired controller and / or a user switch according to needs, so as to facilitate flexible use by users.

[0007] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0008] The present application relates to an air conditioner, comprising:

[0009] The indoor unit is used to provide cooling or heating to the indoor space when the air conditioning system is cooling, and includes an indoor main control panel on which the main control unit is arranged;

[0010] A wire controller, which is communicatively connected with the main control unit;

[0011] A lamp, a first control switch and a second control switch are also arranged on the indoor main control board; one end of the first control switch and one end of the second control switch are respectively connected to one end of the lamp; the first control switch and the second control switch are both controlled by the main control unit, so that the first control switch and the second control switch can be switched on; the other end of the lamp is connected to the power neutral line of the indoor main control board; the power live line is switched to connect the other end of the first control switch and the other end of the second control switch through the user switch to be connected;

[0012] A switch element, wherein the live wire of the power supply is connected to the connection position between the power supply end of the indoor main control board and one end of the switch element, the other end of the switch element is connected to any one of the other end of the first control switch and the other end of the second control switch, and the switch element can be manually controlled to be on and off;

[0013] When the user switch is not connected, the switch element is controlled to be turned on, and only the wire controller is used to control the lamp;

[0014] When the user switch is turned on, the switch element is controlled to be disconnected, and the light is controlled in a linkage manner using the wire controller and the user switch, or the light is controlled only using the user switch.

[0015] For the air conditioner involved in the present application, if there is no need to connect to the user switch, the switch element needs to be turned on. At this time, the AC power supply supplies power to the indoor main control board, and at the same time, the AC power supply supplies power to the lamp through the turned-on switch element and any control switch. In this way, the light control signal sent by the wire controller can be used by the main control unit to control the on and off of any control switch to control the light to turn on or off.

[0016] If the user switch needs to be connected, the switch element needs to be disconnected. At this time, the AC power supply still supplies power to the indoor main control board, and at the same time, the AC power introduced by the user switch will introduce the AC power to the lamp through one of the first control switch and the second control switch that are turned on. At this time, the wire controller can turn the lamp on or off by controlling the first control switch and the second control switch.

[0017] And one of the first control switch and the second control switch can always be connected to form a loop with the user switch, so at the same time, the user switch can also control the lighting or extinguishing of the light. Therefore, in this case, the wire controller and the user switch can be flexibly used in linkage.

[0018] In some embodiments of the present application, the indoor main control panel is also provided with:

[0019] A first terminal, which connects the live wire of the power supply and the connection position;

[0020] A second wiring terminal, which is connected to the power neutral line and the ground terminal of the indoor main control board;

[0021] a third terminal connected to the other end of the switch element and also connected to any one of the other end of the first control switch and the other end of the second control switch;

[0022] a fourth terminal connected to the other of the other end of the first control switch and the other end of the second control switch;

[0023] The third wiring terminal and the fourth wiring terminal are switched to connect the live wire of the power supply introduced via the user switch to be connected.

[0024] By arranging the first wiring terminal, the second wiring terminal, the third wiring terminal and the fourth wiring terminal on the indoor main control board, wiring between the indoor main control board and the external AC power supply and the user switch is facilitated.

[0025] In some embodiments of the present application, the switch element is arranged on the indoor main control board, and the switch element is a toggle switch.

[0026] The toggle switch is used to facilitate maintenance personnel to operate the switch components.

[0027] In some embodiments of the present application, the air conditioner further comprises a terminal block, and the terminal block comprises:

[0028] A first pair of terminals, comprising a first outer terminal and a first inner terminal, wherein the first outer terminal is connected to a live wire of a power source, and the first inner terminal is connected to the connection position;

[0029] A second pair of terminals, comprising a second outer terminal and a second inner terminal, wherein the second outer terminal is connected to a neutral line of a power supply, and the second inner terminal is connected to a ground terminal of the indoor main control board;

[0030] a third pair of terminals, comprising a third outer terminal and a third inner terminal, wherein the third inner terminal is connected to the other end of the switch element and is also connected to any one of the other end of the first control switch and the other end of the second control switch;

[0031] a fourth pair of terminals, comprising a fourth outer terminal and a fourth inner terminal, wherein the fourth inner terminal is connected to the other of the other end of the first control switch and the other end of the second control switch;

[0032] Wherein, the third external terminal and the fourth external terminal are respectively used to connect to the user switch.

[0033] By setting up an external terminal block, it is convenient to connect the external power supply, user switch and indoor main control panel.

[0034] In some embodiments of the present application, the switch element is a shorting wire, which is used to short-circuit the first outer terminal and the third outer terminal, or short-circuit the first inner terminal and the third inner terminal;

[0035] When the user switch is connected, the short-circuit wire is removed;

[0036] When the user switch is not connected, the short wire is maintained.

[0037] Laying short wires on the terminal block makes it easier for maintenance personnel to connect / remove, while avoiding the cost investment caused by using switch devices.

[0038] In some embodiments of the present application, the indoor main control panel is also provided with:

[0039] A driving unit connected to the main control unit;

[0040] A relay connected to the driving unit, and configured to drive the coil of the relay to be energized or de-energized when the main control unit receives the light control signal from the wire controller;

[0041] The first control switch is a normally closed switch of the relay, and the second control switch is a normally open switch of the relay.

[0042] A relay is used to realize switchable conduction of the first control switch and the second switch. When the relay drive is energized, the normally closed switch is opened and the normally open switch is closed, that is, the first control switch is opened and the second control switch is turned on. When the relay drive is de-energized, the normally closed switch is closed and the normally open switch is opened, that is, the first control switch is turned on and the second control switch is opened.

[0043] In some embodiments of the present application, the air conditioner further comprises:

[0044] The indicating unit is connected to the main control unit and is used to indicate whether the lamp is powered on or powered off, and to feed back the corresponding status to the wire controller.

[0045] The on / off status of the lighting is indicated by the indicating unit, and the corresponding status can be displayed on the display screen of the wired controller.

[0046] In some embodiments of the present application, the indicating unit includes:

[0047] A first current limiting resistor, one end of which is connected to the other end of the lamp;

[0048] A second current limiting resistor;

[0049] A bidirectional optocoupler, wherein the first input end of the primary circuit is connected to the connection position between the other end of the first current limiting resistor and one end of the second current limiting resistor, the second input end of the primary circuit is connected to the connection position between the other end of the second current limiting resistor and one end of the lamp, the first end of the secondary circuit of the bidirectional optocoupler is connected to a pull-up resistor, the position where the pull-up resistor is connected to the first end is connected to the input end of the main control unit, and the second end of the secondary circuit is grounded.

[0050] In some embodiments of the present application, the indoor main control board is also provided with:

[0051] A first lamp connection terminal, which is respectively connected to the power neutral line of the indoor main control board and the other end of the lamp;

[0052] The second lamp connection terminal is respectively connected to one end of the first control switch, one end of the second control switch, and one end of the lamp.

[0053] By arranging the lamp connection terminal on the indoor main control board, the connection between the indoor main control board and the lamp is convenient.

[0054] In some embodiments of the present application, the indoor main control board is also provided with:

[0055] The wire controller connection terminal is used to connect the main control unit and the wire controller.

[0056] By arranging the wire controller wiring terminals on the indoor main control board, it is convenient to connect the main control unit and the wire controller on the indoor main control board.

[0057] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0059] Figure 1 It is a principle block diagram of an existing air conditioner embodiment;

[0060] Figure 2 A schematic diagram of the refrigerant flow direction of a conventional air conditioner embodiment during cooling operation;

[0061] Figure 3 A schematic diagram of the refrigerant flow direction of a conventional air conditioner embodiment during heating operation;

[0062] Figure 4 The schematic diagram of the structure arrangement of the indoor main control panel in the air conditioner embodiment proposed in this application is as follows Figure 1 ;

[0063] Figure 5 The schematic diagram of the structure arrangement of the indoor main control panel in the air conditioner embodiment proposed in this application is as follows Figure 2 ;

[0064] Figure 6 The schematic diagram of the structure arrangement of the indoor main control panel in the air conditioner embodiment proposed in this application is as follows Figure 3 ;

[0065] Figure 7 The circuit after the user switch is connected to the air conditioner embodiment proposed in this application Figure 1 ;

[0066] Figure 8 A circuit diagram of an air conditioner embodiment according to the present application without a user switch connected;

[0067] Fig. 9 The circuit of the air conditioner embodiment proposed in this application is not connected to the user switch Figure 1 ;

[0068] Fig.10 The circuit of the air conditioner embodiment proposed in this application is not connected to the user switch Figure 2 ;

[0069] Fig.11 A circuit for connecting a user switch according to an embodiment of the air conditioner proposed in this application Figure 3 ;

[0070] Reference numerals:

[0071] 10. Main control unit; 20. Wire controller; 30. Drive unit; 40. Light; 50. User switch; 60. Toggle switch; 60', short-circuit; 71. Terminal block; 72. Terminal; 73. Light terminal; 74. Wire controller terminal; 80. Indicator unit; CU, other circuits. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0073] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0074] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0075] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0076] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0077] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0078] See also Figure 1 , the air conditioner performs the refrigeration cycle of the air conditioner by using a compressor, condenser, expansion valve and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion and evaporation to cool or heat the indoor space.

[0079] The low-temperature and low-pressure refrigerant enters the compressor, which compresses it into high-temperature and high-pressure refrigerant gas 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 the heat is released to the surrounding environment through the condensation process.

[0080] The expansion valve expands the high-temperature and high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the low-temperature and low-pressure refrigerant gas to the compressor. The evaporator can achieve a cooling effect by utilizing the latent heat of evaporation of the refrigerant to exchange heat with the material to be cooled. In the entire cycle, the air conditioner can adjust the temperature of the indoor space.

[0081] The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the 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.

[0082] The indoor heat exchanger and the outdoor heat exchanger function as a condenser or an evaporator. When the indoor heat exchanger functions as a condenser, the air conditioner functions as a heater in a heating mode, and when the indoor heat exchanger functions as an evaporator, the air conditioner functions as a cooler in a cooling mode.

[0083] See also Figure 2 , which shows the refrigerant flow direction when the air conditioner is in cooling operation.

[0084] The compressor compresses the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure state, which enters the outdoor heat exchanger. After heat exchange in the outdoor heat exchanger, it condenses and releases heat to become liquid refrigerant. The refrigerant then passes through the throttling element and enters the indoor side.

[0085] The refrigerant entering the indoor heat exchanger on the indoor side evaporates and absorbs heat, turning into gas. The refrigerant coming out of the indoor heat exchanger is finally sucked into the compressor for compression, completing the refrigeration cycle.

[0086] See also Figure 3 , which shows the refrigerant flow direction when the air conditioner is in heating operation.

[0087] The compressor compresses the low-temperature and low-pressure refrigerant into a high-temperature and high-pressure state and enters the indoor heat exchanger.

[0088] After heat exchange inside the indoor heat exchanger, it condenses and releases heat to become liquid refrigerant. The refrigerant is then throttled to a low-temperature and low-pressure gas-liquid state through a throttling element. The two-phase refrigerant enters the outdoor heat exchanger, evaporates, absorbs heat, and becomes gaseous.

[0089] The refrigerant coming out of the outdoor heat exchanger is finally sucked into the compressor for compression, completing the heating cycle.

[0090] In some embodiments of the present application, a lamp 40 is provided on the air conditioner. For example, the lamp 40 may be installed on the housing of the air conditioner to facilitate user use.

[0091] The lamp 40 can be an illumination lamp or an atmosphere lamp, which is not limited here.

[0092] In order to achieve flexible control of the lamp 40, the present application wires the indoor main control board, external AC power supply and lamp 40 in the indoor unit, so that when the user switch 50 is not used, the wire controller 20 can be used to control the light 40, and when the user switch 50 is used, the user switch 50 and the wire controller 20 can be used for linkage control.

[0093] In some embodiments of the present application, the air conditioner includes an indoor unit, a wired controller 20 and a light 40 .

[0094] The indoor unit is used to provide cooling or heating to the indoor space when the air-conditioning system is working. It includes an indoor main control panel for performing the functions of the indoor unit.

[0095] The wire controller 20 is connected to the main control unit 10 and is used to receive a control signal of the light 40 (eg, turn off the light 40 , turn on the light 40 ), so that the user can operate the wire controller 20 conveniently.

[0096] See also Figure 4 A main control unit 10, a first control switch SW1 and a second control switch SW2 are arranged on the indoor main control board. The first control switch SW1 and the second control switch SW2 are both controlled by the main control unit 10, so that the first control switch SW1 and the second control switch SW2 can be switched on, that is, only one of the first control switch SW1 and the second control switch SW2 is turned on at the same time.

[0097] See also Figures 4 to 10 , CU represents other circuits except the lamp 40, that is, it can supply power to other electrical components of the indoor main control board except the lamp 40.

[0098] The live wire L of the external AC power supply is connected to the power supply end of the indoor main control board, and the neutral wire N of the external AC power supply is connected to the ground end of the indoor main control board. In this way, as long as the external power supply is connected, the indoor main control board can be powered.

[0099] That is, as long as the indoor main control board is powered, the first control switch SW1 and the second control switch SW2 can be controlled.

[0100] In order to realize the power supply circuit of the lamp 40, the other end of the lamp 40 is connected to the power neutral line N, one end of the first control switch SW1 and one end of the second control switch SW2 are respectively connected to one end of the lamp 40, and the power live line L is switched to connect the other end of the first control switch SW1 and the other end of the second control switch SW2 through the user switch 50 to be connected. In this way, when the user switch 50 is actuated, the lamp 40 can be powered through any connected control switch SW1 or SW2.

[0101] In order to facilitate the addition of a user switch 50 during maintenance or after-sales maintenance, and to avoid the influence of the AC power introduced by the user switch 50 on the power supply of the indoor main control board when the user switch 50 is connected, in some embodiments of the present application, a switch element is also provided. The switch element can be manually controlled to be on and off for maintenance or after-sales personnel to control, and is generally not controlled by the user.

[0102] In some embodiments of the present application, the switch element may be a toggle switch 60 , which can be controlled manually.

[0103] In order to avoid arbitrary manual control, the toggle switch 60 is arranged on the indoor main control panel and can be controlled by after-sales or maintenance personnel.

[0104] In some embodiments of the present application, the toggle switch 60 is arranged on the indoor main control panel.

[0105] See also Figure 4 When only the wire controller 20 is needed to control the light 40 (the user switch 50 is not connected at this time), the maintenance or after-sales personnel will manually turn on the toggle switch 60 to provide AC power to the light 40.

[0106] See also Figure 5 When the user wants to install the user switch 50, the maintenance or after-sales personnel will manually disconnect the toggle switch 60 to prevent the live power line introduced through the user switch 50 from interfering with the power supply circuit of the indoor main control board.

[0107] See also Figure 5 When the user switch 50 is connected, one end of the toggle switch 60 is connected to the connection position between the power live wire L and the power supply end of the indoor main control board, and the other end is connected to the other end of the first control switch SW1.

[0108] In order to implement the control of the first control switch SW1 and the second control switch SW2 by the main control unit 10 as described above, in some embodiments of the present application, see Figure 6 , the relay K1 is used to control the first control switch SW1 and the second control switch SW2.

[0109] In some embodiments of the present application, a driving unit 30 is further provided on the indoor main control board, which is connected to the main control unit 10 and is used to drive the relay K1 to be energized or de-energized.

[0110] The normally closed switch of the relay K1 may be used as the first control switch SW1 , and the normally open switch may be used as the second control switch SW2 .

[0111] That is, the static contact of relay K1 (i.e. Figure 6 The first moving contact (i.e. Figure 6 The number 2 in the middle forms a normally closed switch, with the static contact and the second moving contact (i.e. Figure 6 The middle number is 3) to form a normally open switch.

[0112] Regardless of whether the relay K1 is energized or de-energized, one of the first control switch SW1 and the second control switch SW2 is always turned on, that is, when the relay K1 is energized, the first control switch SW1 is disconnected and the second control switch SW2 is turned on, and when the relay K1 is de-energized, the first control switch SW1 is turned on and the second control switch SW2 is closed.

[0113] In some embodiments of the present application, for the convenience of description, see Figure 6 One end of the toggle switch 60 is connected to the connection position between the live wire L of the power supply and the power supply end of the indoor main control board, and the other end of the toggle switch 60 is connected to the second moving contact of the normally open switch.

[0114] In some embodiments of the present application, for convenience of wiring, see Figures 6 to 10 The indoor main control board also includes a wiring terminal 72, which includes a first wiring terminal, a second wiring terminal, a third wiring terminal and a fourth wiring terminal.

[0115] The first wiring terminal is connected to the live wire L of the power supply and the power supply end of the indoor main control board.

[0116] The second connection terminal is connected to the power neutral line N line, the other end of the lamp 40 and the ground end of the indoor main control board.

[0117] The third connection terminal is connected to the live line L of the power source introduced via the user switch 50 , and is also connected to the connection position between the other end of the slide switch 60 and the second moving contact.

[0118] See also Figure 8 When no user switch 50 is connected, if the relay K1 is energized and the toggle switch 60 is closed and turned on, the live wire L of the power supply can supply power to the lamp 40 through the toggle switch 60 and the normally open switch that is turned on.

[0119] In some embodiments of the present application, the third terminal may also be connected to the connection position between the other end of the toggle switch 60 and the first moving contact. At this time, when no user switch 50 is connected, if the relay K1 loses power and the toggle switch 60 is closed and turned on, the power live wire L can supply power to the lamp 40 through the toggle switch 60 and the normally closed switch that is turned on.

[0120] That is, when no user switch 50 is connected and the toggle switch 60 is closed and turned on, the lamp 40 is controlled by the energization or de-energization of the relay K1.

[0121] The fourth connection terminal is connected to the live line L of the power source introduced via the user switch 50 and is also connected to the first moving contact.

[0122] The wiring terminal 72 is used to facilitate wiring with the indoor main control board.

[0123] In some embodiments of the present application, in order to facilitate the connection of the lamp 40, see Figures 6 to 10 The indoor main control board includes a lamp connection terminal 73, which includes a first lamp connection terminal and a second lamp connection terminal.

[0124] The first lamp connection terminal is connected to the connection position between the other end of the lamp 40 and the neutral line N of the power supply, and the second lamp connection terminal is connected to the connection position between one end of the lamp 40 and the static contact.

[0125] In some embodiments of the present application, in order to facilitate access to the wire controller 20, see Figures 6 to 10 The indoor main control board also includes a wire controller connection terminal 74, which connects the main control unit 10 and the wire controller 20.

[0126] In some embodiments of the present application, see Figures 6 to 10 In order to facilitate the user to connect the user switch 50 when the user switch 50 is needed, a terminal block 71 is also provided on the outside of the indoor main control board.

[0127] The terminal row 71 includes a first pair of terminals, a second pair of terminals, a third pair of terminals and a fourth pair of terminals.

[0128] The first pair of terminals includes a first outer terminal and a first inner terminal, the first outer terminal is connected to the live wire L of the external AC power supply, and the first inner terminal is connected to the connection position between the power supply end of the indoor main control board and one end of the toggle switch 60.

[0129] That is, when the first connecting terminal is provided, the first inner terminal is connected to the first connecting terminal.

[0130] The second pair of terminals includes a second outer terminal and a second inner terminal, the second outer terminal is connected to the neutral line of the external power supply, the second inner terminal is connected to the ground terminal of the indoor main control board, and the other end of the lamp 40 is connected to the ground terminal.

[0131] The third pair of terminals includes a third outer terminal and a third inner terminal, and the third inner terminal is connected to the other end of the toggle switch 60 and the connection position of the second moving contact.

[0132] The fourth pair of terminals includes a fourth outer terminal and a fourth inner terminal, and the fourth inner terminal is connected to the first moving contact.

[0133] The third outer terminal and the fourth inner terminal are respectively connected to connect to the user switch 50 .

[0134] In some embodiments of the present application, see Figure 6 , Figure 7 and Fig.10 The user switch 50 is a single-pole double-throw switch having a static end, a first moving end and a second moving end.

[0135] The static end is connected to the external power live wire L, the first dynamic end is connected to the third external terminal, and the second dynamic end is connected to the fourth external terminal, so that the user can connect the user switch 50 conveniently.

[0136] When only the wire controller 20 is used to control the lighting or extinguishing of the lamp 40, the user switch 50 is not connected (that is, the third external terminal and the fourth external terminal are suspended), and the toggle switch 60 is turned on. Figure 8 .

[0137] Combination Figure 8 The process of using the wire controller 20 to control the lamp 40 is described as follows.

[0138] When the online controller 20 controls the lamp 40 to light up, a signal for lighting up the lamp 40 is sent to the main control unit 10. After the main control unit 10 receives the signal, the control driving unit 30 sends a driving signal to the relay K1, driving the relay K1 to be energized, so that the normally open switch is turned on.

[0139] At this time, the current signal flows to the lamp 40 through the live wire L of the power supply, the toggle switch 60 and the normally open switch, and the lamp 40 lights up.

[0140] When the online controller 20 controls the light 40 to turn off, a signal to turn off the light 40 is sent to the main control unit 10. After the main control unit 10 receives the signal, the control driving unit 30 sends a driving signal to the relay K1 to drive the relay K1 to lose power, so that the normally open switch is disconnected.

[0141] At this time, the current path for supplying current to the lamp 40 is cut off, and the lamp 40 is turned off.

[0142] When the user wants to add a user switch 50 to control the light 40, the after-sales personnel or maintenance personnel need to disconnect the toggle switch 60 and connect the user switch 50 between the third and fourth external terminals and the live wire L of the power supply. Figure 6 .

[0143] Combination Figure 6 The process of using the wire controller 20 and the user switch 50 to perform linkage control of the light 40 is described as follows.

[0144] Regardless of whether the wire controller 20 is used to control the relay K1 to be energized or de-energized, the user switch 50 always has a path to transmit the current from the live wire L of the power supply to the lamp 40. Therefore, the wire controller 20 and / or the user switch 50 can be used to control the state of the lamp 40 (power-on state or power-off state).

[0145] (1) User switch 50 turns on the light 40, wired controller 20 turns off the light 40

[0146] See also Figure 6 When the online controller 20 controls the relay K1 to lose power, the normally closed switch is turned on. When the user switch 50 is actuated to connect the static end and the second dynamic end, power can be supplied to the lamp 40. When the online controller 20 controls the relay K1 to be energized, the normally closed switch is disconnected and the lamp 40 is de-energized.

[0147] (2) User switch 50 turns on the light 40, user switch 50 turns off the light 40

[0148] When the online controller 20 controls the relay K1 to lose power, the normally closed switch is turned on. When the user switch 50 is actuated to connect the static end and the second dynamic end, power can be supplied to the lamp 40. When the user switch 50 is actuated to connect the static end and the first dynamic end, the lamp 40 is de-energized.

[0149] (3) User switch 50 turns off the light 40, and the wire controller 20 turns on the light 40

[0150] After the lamp 40 is turned off by the user switch 50 as described in (2) (at this time, the normally closed switch is turned on and the static end of the user switch 50 is connected to the first dynamic end), the wire controller 20 can control the relay K1 to be energized and the normally open switch to be turned on.

[0151] At this time, the AC power source supplies power to the lamp 40 again through the static end and the first dynamic end of the user switch 50 and the normally open switch, and the lamp 40 lights up again.

[0152] (4) The wired controller 20 turns off the light 40, and the user switch 50 turns on the light 40

[0153] After the lamp 40 is turned off by the wire controller 20 as described in (1) (at this time, the normally open switch is turned on and the user switch 50 is actuated to connect the static end and the second dynamic end), the user switch 50 is actuated to connect the static end and the first dynamic end.

[0154] At this time, the AC power source supplies power to the lamp 40 again through the static end and the first dynamic end of the user switch 50 and the normally open switch, and the lamp 40 lights up again.

[0155] As described above, in this case, the wire controller 20 and the user switch 50 can realize linkage control of the lamp 40, which is convenient for users to use and enhances the flexibility of use.

[0156] Furthermore, even when the online controller 20 unexpectedly fails and loses power, the user switch 50 can be used to control the lamp 40, which does not delay the user's use and improves the user experience.

[0157] In some embodiments of the present application, see Fig. 9 and Fig.10 The switch element can also be a short-circuit wire 60', and its removal and installation also require professional personnel (such as after-sales personnel, maintenance personnel, etc.) to operate.

[0158] In some embodiments of the present application, in order to correspond to the installation position of the toggle switch 60 as described above, the shorting wire 60 ′ short-circuits the first inner terminal and the third inner terminal, and may also short-circuit the first outer terminal and the third outer terminal.

[0159] When the short-circuit wire 60' is provided, it is equivalent to turning on the toggle switch 60 as described above. Fig. 9 If you want to access the user switch 50, you need to remove the short-circuit 60', see Fig.10 .

[0160] When only the wire controller 20 is used to control the lighting or extinguishing of the lamp 40, the user switch 50 is not connected (ie, the third external terminal and the fourth external terminal are suspended), and the short wire 60' is kept, see Fig. 9 .

[0161] When the wire controller 20 and the user switch 50 are used for linkage control, the user switch 50 is connected to the third external terminal and the fourth external terminal, and the short-circuit wire 60' is removed. Fig.10 .

[0162] Compared with setting the toggle switch 60 , using the short-circuit wire 60 ′ is more conducive to reducing costs.

[0163] In some embodiments of the present application, for the status of the indicator light 40, see Figures 7 to 10 An indicating unit 80 is also provided, which is arranged on the indoor main control panel.

[0164] The indicating unit 80 is connected to the main control unit 10 , and is used to indicate the state of the indicating lamp 40 (power-on state or power-off state), and feed back the corresponding state to the wire controller 20 .

[0165] In some embodiments of the present application, see Figures 7 to 10 , see Figure 7The indicating unit 80 includes a first current limiting resistor R1, a second current limiting resistor R2, a bidirectional optical coupler OC and a pull-up resistor R3.

[0166] One end of the first current limiting resistor R1 is connected to the other end of the lamp 40, one end of the second current limiting resistor R2 is connected to the connection position of the first current limiting resistor R1 and the first input end of the primary circuit of the bidirectional optocoupler OC, and the other end of the second current limiting resistor R2 is connected to the connection position of the other end of the lamp 40 and the second input end of the primary circuit of the bidirectional optocoupler OC.

[0167] The first end of the secondary circuit of the bidirectional optocoupler OC is connected to the pull-up resistor R3 , and the position where the pull-up resistor R3 is connected to the first end of the secondary circuit of the bidirectional optocoupler OC is connected to the input end of the main control unit 10 for receiving a signal representing the state of the lamp 40 .

[0168] The second end of the secondary loop of the bidirectional optocoupler OC is grounded.

[0169] Since the wire controller 20 is connected to the main control unit 10 , the state of the light 40 can be displayed on the display screen of the wire controller 20 .

[0170] The air conditioner involved in the present application can flexibly realize the control of the light 40 according to the needs, and the wire controller 20 can be selected for control; an external user switch 50 can also be connected to realize the linkage control of the user switch 50 and the wire controller 20, thereby improving the flexible control of the light 40.

[0171] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0172] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. An air conditioner, characterized in that: include: The indoor unit is used to provide cooling or heating to the indoor space when the air conditioning system is working, and includes an indoor main control panel on which the main control unit is arranged; A wire controller, which is communicatively connected with the main control unit; A lamp, a first control switch and a second control switch are also arranged on the indoor main control board; one end of the first control switch and one end of the second control switch are respectively connected to one end of the lamp; the first control switch and the second control switch are both controlled by the main control unit, so that the first control switch and the second control switch can be switched on; the other end of the lamp is connected to the power neutral line of the indoor main control board; The live wire of the power supply is switched to connect the other end of the first control switch and the other end of the second control switch through the user switch to be connected; A switch element, wherein the live wire of the power supply is connected to the connection position between the power supply end of the indoor main control board and one end of the switch element, and the other end of the switch element is connected to any one of the other end of the first control switch and the other end of the second control switch, wherein the switch element can be manually controlled to be on and off; When the user switch is not connected, the switch element is controlled to be turned on, and only the wire controller is used to control the lamp; When the user switch is connected, the switch element is controlled to be disconnected, and the light is controlled by the wire controller and the user switch in linkage, or the light is controlled by the user switch alone.

2. The air conditioner according to claim 1, characterized in that: The indoor main control panel is also provided with: A first terminal, which connects the live wire of the power supply and the connection position; A second wiring terminal, which is connected to the power neutral line and the ground terminal of the indoor main control board; a third terminal connected to the other end of the switch element and also connected to any one of the other end of the first control switch and the other end of the second control switch; a fourth terminal connected to the other of the other end of the first control switch and the other end of the second control switch; The third wiring terminal and the fourth wiring terminal are switched to connect the live wire of the power supply introduced via the user switch to be connected.

3. The air conditioner according to claim 1, characterized in that: The switch element is arranged on the indoor main control board, and the switch element is a toggle switch.

4. The air conditioner according to claim 1, characterized in that: The air conditioner further comprises a terminal block, wherein the terminal block comprises: A first pair of terminals, comprising a first outer terminal and a first inner terminal, wherein the first outer terminal is connected to a live wire of a power source, and the first inner terminal is connected to the connection position; A second pair of terminals, comprising a second outer terminal and a second inner terminal, wherein the second outer terminal is connected to a neutral line of a power supply, and the second inner terminal is connected to a ground terminal of the indoor main control board; a third pair of terminals, comprising a third outer terminal and a third inner terminal, wherein the third inner terminal is connected to the other end of the switch element and is also connected to any one of the other end of the first control switch and the other end of the second control switch; a fourth pair of terminals, comprising a fourth outer terminal and a fourth inner terminal, wherein the fourth inner terminal is connected to the other of the other end of the first control switch and the other end of the second control switch; Wherein, the third external terminal and the fourth external terminal are respectively used to connect to the user switch.

5. The air conditioner according to claim 4, characterized in that: The switch element is a shorting wire, which is used to short-circuit the first external terminal and the third external terminal, or short-circuit the first internal terminal and the third internal terminal; When the user switch is connected, the short-circuit wire is removed; When the user switch is not connected, the short wire is maintained.

6. The air conditioner according to claim 1, characterized in that: The indoor main control panel is also provided with: A driving unit connected to the main control unit; A relay connected to the driving unit, and configured to drive the coil of the relay to be energized or de-energized when the main control unit receives the light control signal from the wire controller; The first control switch is a normally closed switch of the relay, and the second control switch is a normally open switch of the relay.

7. The air conditioner according to claim 1, characterized in that: The air conditioner also includes: The indicating unit is connected to the main control unit and is used to indicate whether the lamp is powered on or powered off, and to feed back the corresponding status to the wire controller.

8. The air conditioner according to claim 7, characterized in that: The indicating unit comprises: A first current limiting resistor, one end of which is connected to the other end of the lamp; A second current limiting resistor; A bidirectional optocoupler, wherein the first input end of the primary circuit is connected to the connection position between the other end of the first current limiting resistor and one end of the second current limiting resistor, the second input end of the primary circuit is connected to the connection position between the other end of the second current limiting resistor and one end of the lamp, the first end of the secondary circuit of the bidirectional optocoupler is connected to a pull-up resistor, the position where the pull-up resistor is connected to the first end is connected to the input end of the main control unit, and the second end of the secondary circuit is grounded.

9. The air conditioner according to claim 1, characterized in that: The indoor main control panel is also provided with: A first lamp connection terminal, which is respectively connected to the power neutral line of the indoor main control board and the other end of the lamp; The second lamp connection terminal is respectively connected to one end of the first control switch, one end of the second control switch, and one end of the lamp.

10. The air conditioner according to claim 1, characterized in that: The indoor main control panel is also provided with: The wire controller connection terminal is used to connect the main control unit and the wire controller.

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