KR102352397B1 - Air conditioner - Google Patents

Abstract

It relates to an air conditioner equipped with an EMC (Electro Magnetic Compatibility) filter for blocking electromagnetic waves, which is an outdoor unit, an indoor unit that is electrically connected to an outdoor unit to perform air conditioning, and an outdoor unit and indoor unit that removes noise from input power An EMC filter module comprising: a first substrate on which a core on which a coil is wound is disposed; a second substrate on which a noise removal circuit is disposed on the first substrate and electrically connected to the coil to remove noise; The second substrate may include a third substrate on which a plurality of terminals electrically connected to the noise canceling circuit and electrically connected to the outdoor unit and the indoor unit are disposed on the second substrate.

Description

air conditioner {Air conditioner}

The present invention relates to an air conditioner, and more particularly, to an air conditioner equipped with an EMC (Electro Magnetic Compatibility) filter for blocking electromagnetic waves.

In general, air conditioners are mainly used in air conditioners that compress, evaporate, and condense a predetermined refrigerant, and discharge cold air generated through heat exchange with ambient air according to evaporation of the refrigerant into a room using a fan.

Recently, by using the refrigerant compression, evaporation, and condensing cycle in reverse, the hot air generated through heat exchange between the refrigerant and the surrounding air due to the condensation of the refrigerant is discharged into the room using a fan. With the spread of air conditioners, air conditioners are being used as devices for controlling the indoor temperature of homes throughout the four seasons.

As such, since the air conditioner performs various functions, various malfunctions may occur.

In particular, the air conditioner may malfunction due to electromagnetic waves generated when the indoor unit and the outdoor unit are driven.

Accordingly, the air conditioner blocks electromagnetic waves by arranging an EMC (Electro Magnetic Compatibility) filter in the indoor unit and the outdoor unit, respectively.

However, since two EMC filters are respectively disposed in the air conditioner, such as an EMC filter for an indoor unit and an EMC filter for an outdoor unit, there is a problem in that the size of the PCB increases and the manufacturing cost increases due to the two EMC filters.

Accordingly, there is a demand for the development of an air conditioner having an integrated outdoor unit and indoor unit EMC filter module so as to reduce the PCB size and manufacturing cost while eliminating malfunction due to electromagnetic waves.

SUMMARY OF THE INVENTION The present invention aims to solve the above and other problems. Another object is to manufacture an outdoor unit and indoor unit integrated EMC filter module by stacking a first board on which a core is disposed, a second board on which a noise removal circuit is disposed, and a third board on which a plurality of terminals are disposed, thereby providing a PCB and a control box. To provide an air conditioner that can reduce the size and manufacturing cost of

An air conditioner according to an embodiment of the present invention includes an outdoor unit, an indoor unit that is electrically connected to the outdoor unit to perform air conditioning, and an EMC (Electro Magnetic Compatibility) filter module that removes noise from input power and outputs it to the outdoor unit and indoor unit The EMC filter module includes a first substrate on which a core wound with a coil is disposed, a second substrate on which a noise removal circuit is disposed on the first substrate and electrically connected to the coil to remove noise, the second substrate It may include a third substrate disposed on the upper portion and electrically connected to the noise removing circuit and on which a plurality of terminals electrically connected to the outdoor unit and the indoor unit are disposed.

Here, the EMC filter module may have a three-layer structure in which the first, second, and third substrates are sequentially stacked.

In addition, the coil of the core disposed on the first substrate includes first, second, third, and fourth coil terminals, the first and second coil terminals are electrically connected to the terminals of the third substrate, and the third , the fourth coil terminal may be electrically connected to the noise canceling circuit of the second substrate.

Then, the noise removal circuit disposed on the second board includes first, second, third, and fourth circuit terminals, the first and second circuit terminals are electrically connected to the power input terminal of the third board, The third and fourth circuit terminals may be electrically connected to the core coil of the first substrate.

Next, the plurality of terminals disposed on the third substrate may be configured as a plurality of terminal groups including a positive terminal, a negative terminal, and a ground terminal.

Here, the plurality of terminal groups includes first and fourth terminal groups disposed on one edge of the third board, and second and third terminal groups disposed on the other edge of the third board, and the first terminal group includes: The second terminal group may be disposed to face each other, and the fourth terminal group may be disposed to face the third terminal group.

The positive terminal and the negative terminal of the first terminal group may be electrically connected to an external power supply and a noise removal circuit of the second board to receive power from the power supply and output the received power to the noise removal circuit.

The positive terminal and the negative terminal of the second terminal group are electrically connected to the core coil of the first board, the terminal of the third terminal group, and the outdoor unit to receive and receive power from which noise has been removed from the core coil of the first board. Power may be output to the terminal of the third terminal group and the outdoor unit.

Then, the positive terminal and the negative terminal of the third terminal group are electrically connected to the terminal of the second terminal group and the terminal of the fourth terminal group to receive power from which noise has been removed from the terminal of the second terminal group and to receive the input power It can output to the terminal of the fourth terminal group.

Next, the positive terminal and the negative terminal of the fourth terminal group are electrically connected to the terminal of the third terminal group and the indoor unit to receive power from which noise has been removed from the terminal of the third terminal group and output the received power to the indoor unit. have.

The effects of the air conditioner according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, an outdoor unit and an indoor unit integrated EMC filter module are formed by stacking a first substrate on which a core is arranged, a second substrate on which a noise removal circuit is arranged, and a third substrate on which a plurality of terminals are arranged. By manufacturing, the size and manufacturing cost of the PCB and control box can be reduced.

In addition, according to at least one of the embodiments of the present invention, by installing the integrated EMC filter module at the power input stage, it is possible to reduce the EMC debugging load of developers and satisfy the EMC compatibility of air conditioners in major markets. .

Further scope of applicability of the present invention will become apparent from the following detailed description. However, it should be understood that the detailed description and specific embodiments such as preferred embodiments of the present invention are given by way of example only, since various changes and modifications within the spirit and scope of the present invention may be clearly understood by those skilled in the art.

1 is a view schematically showing an air conditioner according to the present invention.
2 is a view showing an outdoor unit equipped with an EMC filter module according to the present invention.
3 and 4 are views showing the structure of the EMC filter module according to the present invention.
5 is a view for explaining a fastening structure of the EMC filter module according to the present invention.
6 is a view for explaining the first substrate of the EMC filter module according to the present invention.
7 is a view for explaining the second substrate of the EMC filter module according to the present invention.
8 is a view for explaining a third substrate of the EMC filter module according to the present invention.
9 and 10 are views showing a third substrate of the EMC filter module according to the present invention.
11 is a view showing electrical wiring of the EMC filter module according to the present invention.
12 is a view for explaining the flow of power applied to the outdoor unit and the indoor unit through the EMC filter module according to the present invention.
13 is a view showing the position of the EMC filter module of the air conditioner according to the present invention.

Hereinafter, the embodiments disclosed in the present specification will be described in detail with reference to the accompanying drawings, but the same or similar components are assigned the same reference numbers regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "part" for components used in the following description are given or mixed in consideration of only the ease of writing the specification, and do not have distinct meanings or roles by themselves. In addition, in describing the embodiments disclosed in the present specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in the present specification, and the technical idea disclosed herein is not limited by the accompanying drawings, and all changes included in the spirit and scope of the present invention , should be understood to include equivalents or substitutes.

Terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various elements, but the elements are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprises” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

1 is a view schematically showing an air conditioner according to the present invention.

1 , the air conditioner according to the present invention includes at least one outdoor unit 100 , at least one indoor unit 200 connected to the outdoor unit 100 through a refrigerant pipe to perform air conditioning, and an operation command Based on the , a control unit for operating the outdoor unit 100 or the indoor unit 200 may be included.

Here, the indoor unit 200 may include an indoor heat exchanger for exchanging heat between indoor air and a refrigerant, an indoor fan for blowing the heat-exchanged indoor air, and a heater for heating the blown indoor air.

In addition, the indoor unit 200 may be connected to the outdoor unit 100 in communication to perform air conditioning.

In addition, the outdoor unit 100 may include an outdoor heat exchanger for exchanging heat with outdoor air and a refrigerant, an outdoor fan for blowing the heat-exchanged outdoor air, and a compressor for compressing the refrigerant.

Also, the outdoor unit 100 may include an Electro Magnetic Compatibility (EMC) filter module (not shown).

Here, the EMC filter module may remove the noise of the input power and output it to the outdoor unit and the indoor unit.

For example, the EMC filter module includes a first substrate on which a core wound with a coil is disposed, a second substrate on which a noise removal circuit is disposed on the first substrate and electrically connected to the coil to remove noise, and an upper portion of the second substrate and a third substrate on which a plurality of terminals electrically connected to the noise canceling circuit and electrically connected to the outdoor unit and the indoor unit are disposed.

In addition, the air conditioner may further include a wireless controller 300 that receives a user's driving command and transmits it to the control unit.

For example, the wireless controller 300 may be provided indoors, and is connected to the indoor unit 200 by a wireless communication method, for example, IR (Infra-Red Ray Communication), RF (Radio Frequency Communication), etc. to transmit and receive data. A wireless remote control is common.

In some cases, the wireless controller 300 may be any one terminal among a computer, a mobile phone, a smart phone, and a personal digital assistant (PDA).

2 is a view showing an outdoor unit equipped with an EMC filter module according to the present invention.

In general, the air conditioner may malfunction due to electromagnetic waves generated when the indoor unit 200 and the outdoor unit 100 are driven.

Therefore, as shown in FIG. 2 , in the conventional air conditioner, an EMC (Electro Magnetic Compatibility) filter 110 for the outdoor unit is disposed in the outdoor unit 100 to block electromagnetic waves according to the driving of the outdoor unit 100, and the indoor unit ( 200) by disposing the EMC filter 210 for the indoor unit to block electromagnetic waves caused by the driving of the indoor unit 200, it was possible to reduce malfunction due to electromagnetic waves.

However, since two EMC filters are respectively disposed, such as the EMC filter 110 for the outdoor unit and the EMC filter 210 for the indoor unit, there is a problem in that the PCB size increases and the manufacturing cost increases due to the two EMC filters.

Accordingly, the present invention integrates the EMC filter 110 for the outdoor unit and the EMC filter 210 for the indoor unit to manufacture one integrated EMC filter module 400, thereby eliminating malfunction due to electromagnetic waves while reducing the PCB size and manufacturing cost. can be reduced

The EMC filter module 400 may be disposed only in the outdoor unit 100 , but may be disposed only in the indoor unit 200 in some cases.

However, in order to block noise generated from the initial input power, it may be advantageous to arrange the EMC filter module 400 at the power input terminal of the outdoor unit 100 .

Accordingly, the EMC filter module 400 of the present invention can remove noise from the input power and output it to the outdoor unit 100 and the indoor unit 200 .

For example, the EMC filter module 400 includes a first substrate on which a core wound with a coil is disposed, a second substrate on which a noise removal circuit is disposed on the first substrate and electrically connected to the coil to remove noise, and The second substrate may include a third substrate on which a plurality of terminals electrically connected to the noise canceling circuit and electrically connected to the outdoor unit and the indoor unit are disposed on the second substrate.

Here, the EMC filter module 400 may have a three-layer structure in which first, second, and third substrates are sequentially stacked.

However, in some cases, the EMC filter module 400 may have a stacked structure of three or more layers in which a plurality of substrates are stacked.

In addition, the first, second, and third substrates of the EMC filter module 400 may be disposed in contact with each other or disposed at a predetermined distance apart.

For example, the lower surface of the second substrate of the EMC filter module 400 is disposed at a first interval from the upper surface of the first substrate of the EMC filter module 400 , and the lower surface of the third substrate of the EMC filter module 400 is disposed below the third substrate of the EMC filter module 400 . The surface may be disposed at a second interval from the upper surface of the second substrate of the EMC filter module 400 .

Here, the first interval and the second interval may be different from each other, but may be the same as each other in some cases.

In addition, the areas of the first, second, and third substrates of the EMC filter module 400 may be different from each other, but may be the same as each other in some cases.

In addition, a first coupling part for coupling to the second substrate may be disposed in an edge region of an upper surface of the first substrate of the EMC filter module 400 , and a lower surface of the second substrate is coupled to the first substrate in an edge region A second fastening part for coupling to the third substrate may be disposed, and a third coupling part for coupling with the third substrate may be disposed on an edge region of the upper surface of the second substrate.

Here, the second fastening part may be disposed to correspond to the first fastening part of the first substrate and may have a different fastening structure from that of the third fastening part.

However, in some cases, the second fastening part may have the same fastening structure as the third fastening part.

As an example, the second fastening part may have a fastening groove shape when the third fastening part has a fastening protrusion shape, and may have a fastening protrusion shape when the third fastening part has a fastening groove shape.

As another example, when the third fastening part has a fastening protrusion shape, the second fastening part may have the same fastening protrusion shape, and when the third fastening part has a fastening groove shape, it may have the same fastening groove shape.

In addition, the second fastening part and the third fastening part may be disposed to be shifted from each other or may be disposed to correspond to each other.

Next, a fourth fastening part for coupling with the second substrate may be disposed in an edge region of the lower surface of the third substrate.

Here, the fourth fastening part may be disposed to correspond to the third fastening part of the second substrate.

Next, the core disposed on the first substrate may be, for example, a ferrite core, but is not limited thereto.

In addition, the coil of the core disposed on the first substrate may include first, second, third, and fourth coil terminals, the first and second coil terminals are electrically connected to the terminals of the third substrate, The third and fourth coil terminals may be electrically connected to the noise removing circuit of the second substrate.

Here, the first coil terminal may be electrically connected to the positive terminal of the third substrate, and the second coil terminal may be electrically connected to the negative terminal of the third substrate.

Next, the noise removal circuit disposed on the second board may include first, second, third, and fourth circuit terminals, the first and second circuit terminals being electrically connected to the power input terminal of the third board and the third and fourth circuit terminals may be electrically connected to the core coil of the first substrate.

Here, the first circuit terminal may be electrically connected to the positive terminal of the third substrate, and the second circuit terminal may be electrically connected to the negative terminal of the third substrate.

Also, the plurality of terminals disposed on the third substrate may include a plurality of terminal groups including a positive terminal, a negative terminal, and a ground terminal.

For example, the plurality of terminal groups may include first and fourth terminal groups disposed on one edge of the third substrate, and second and third terminal groups disposed on the other edge of the third board. The terminal groups may be disposed to face the second terminal group, and the fourth terminal groups may be disposed to face the third terminal group.

Here, the positive terminal and the negative terminal of the first terminal group are electrically connected to the external power supply and the noise removal circuit of the second board, receive power from the power supply, and output the received power to the noise removal circuit. .

In addition, the positive terminal and the negative terminal of the second terminal group are electrically connected to the core coil of the first board, the terminal of the third terminal group, and the outdoor unit to receive and input power from which noise is removed from the core coil of the first board. The received power may be output to the terminal of the third terminal group and the outdoor unit.

Then, the positive terminal and the negative terminal of the third terminal group are electrically connected to the terminal of the second terminal group and the terminal of the fourth terminal group, and receive the noise-removed power from the terminal of the second terminal group, and the received power may be output as a terminal of the fourth terminal group.

And, the positive terminal and the negative terminal of the fourth terminal group are electrically connected to the terminal of the third terminal group and the indoor unit, so that noise-removed power is input from the terminal of the third terminal group and the received power is output to the indoor unit. can

In addition, the third substrate of the EMC filter module 400 has a body that forms an exterior and supports a plurality of power lines, a plurality of terminals disposed on both sides of the body and coupled to the power line, and a power line to the terminal It may include an attachment screw to secure it.

Here, the body of the third substrate may include a plurality of barrier ribs disposed between adjacent terminals to electrically insulate the terminals.

The EMC filter module 400 of the present invention configured as described above may be disposed at the power input terminal of the outdoor unit 100, but is not limited thereto.

That is, as another example, the EMC filter module 400 may be disposed at the power input terminal of the indoor unit 200 , and in some cases, the EMC filter module 400 itself, except for the outdoor unit 100 and the indoor unit 200 , is independently operated. may be placed.

3 and 4 are views showing the structure of an EMC filter module according to the present invention. FIG. 3 is a front view of the EMC filter module, and FIG. 4 is an exploded view of the EMC filter module.

3 and 4, the EMC filter module 400 is located on the first substrate 410 on which the core 412 on which the coil 414 is wound is disposed, the first substrate 410, and the coil ( The second substrate 420 is electrically connected to 414 and on which the noise removal circuit 422 for removing noise is disposed, and the second substrate 420 is located on the top and is electrically connected to the noise removal circuit 422 and is connected to the outdoor unit and A third substrate 430 on which a plurality of terminals 10 electrically connected to the indoor unit are disposed may be included.

Here, the EMC filter module 400 may have a three-layer structure in which the first, second, and third substrates 410 , 420 , and 430 are sequentially stacked, but is not limited thereto.

For example, the EMC filter module 400 may have a stacked structure of three or more layers in which a plurality of substrates are stacked.

In addition, the first, second, and third substrates 410 , 420 , and 430 of the EMC filter module 400 may be disposed in contact with each other or disposed at a predetermined distance apart from each other.

For example, the lower surface 420b of the second substrate 420 of the EMC filter module 400 is in contact with the upper surface 410a of the first substrate 410 of the EMC filter module 400 and is to be bonded by an adhesive. Also, the lower surface 430b of the third substrate 430 of the EMC filter module 400 is in contact with the upper surface 420a of the second substrate 420 of the EMC filter module 400 and is to be bonded by an adhesive. may be

Here, when the first, second, and third substrates 410, 420, and 430 are disposed in contact with each other, on the first and second substrates 410 and 420, a protective layer for protecting a circuit disposed on the substrate is formed. may be formed.

As another example, as shown in FIG. 4 , the lower surface 420b of the second substrate 420 of the EMC filter module 400 is formed from the upper surface 410a of the first substrate 410 of the EMC filter module 400 . It may be disposed at an interval of d1 , and the lower surface 430b of the third substrate 430 of the EMC filter module 400 is second from the upper surface 420a of the second substrate 420 of the EMC filter module 400 . It may be arranged at an interval d2.

Here, when the first, second, and third substrates 410, 420, and 430 are disposed at a predetermined distance apart, the distance between the first, second, and third substrates 410, 420, and 430 is It may be desirable to arrange the circuits exposed on the substrate at an interval such that the impact does not damage them.

In some cases, the gap between the first, second, and third substrates 410 , 420 , and 430 may be an air gap, but in some cases, it may be filled in a vacuum state or a buffer material.

Also, the first interval and the second interval may be different from each other, but may be the same as each other in some cases.

Here, the reason that the first interval and the second interval are different from each other is that the height of the core disposed on the first substrate 410 and the height of the circuit disposed on the second substrate 420 are different from each other.

In this case, when the EMC filter module 400 is manufactured by setting an interval based on the height of the core disposed on the first substrate 410 and the height of the circuit disposed on the second substrate 420 , the EMC filter module 400 ) can be minimized.

In another case, the areas of the first, second, and third substrates 410 , 420 , and 430 may be equal to each other.

However, in some cases, the areas of the first, second, and third substrates 410 , 420 , and 430 may be different from each other.

Here, the reason why the areas of the first, second, and third substrates 410 , 420 , and 430 are different from each other is that the arrangement area of the core arranged on the first substrate 410 and the arrangement area of the core arranged on the second substrate 420 are different from each other. This is because the arrangement area of the terminal and the arrangement area of the terminals arranged on the third substrate 430 are different from each other.

In this case, the area of the substrate is based on the arrangement area of the core arranged on the first substrate 410 , the arrangement area of the circuit arranged on the second substrate 420 , and the arrangement area of the terminals arranged on the third substrate 430 . When manufacturing the EMC filter module 400 by setting , the size of the EMC filter module 400 can be minimized.

Next, a core 412 on which a coil 414 is wound may be disposed on the first substrate 410 of the EMC filter module 400 .

Here, the core 412 disposed on the first substrate 410 may be, for example, a ferrite core, but is not limited thereto.

Also, the coil of the core 412 disposed on the first substrate 410 may include first, second, third, and fourth coil terminals, wherein the first and second coil terminals are terminals of the third substrate. may be electrically connected to, and the third and fourth coil terminals may be electrically connected to the noise removing circuit of the second substrate.

Next, the second substrate 420 of the EMC filter module 400 may be disposed on the first substrate 410 , and may be electrically connected to the coil 414 to remove a noise removing circuit 422 .

Here, the noise removal circuit 422 disposed on the second board 420 may include first, second, third, and fourth circuit terminals, and the first and second circuit terminals are the power supply of the third board. It may be electrically connected to the input terminal, and the third and fourth circuit terminals may be electrically connected to the core coil of the first substrate.

Next, the third substrate 430 of the EMC filter module 400 is located on the second substrate 420 and is electrically connected to the noise removal circuit 422 and a plurality of terminals 10 electrically connected to the outdoor unit and the indoor unit can be placed.

Here, the plurality of terminals 10 disposed on the third substrate 430 may include a plurality of terminal groups including a positive terminal 11 , a negative terminal 12 , and a ground terminal 13 .

For example, the plurality of terminal groups may include first and fourth terminal groups disposed on one edge of the third substrate, and second and third terminal groups disposed on the other edge of the third board. The terminal groups may be disposed to face the second terminal group, and the fourth terminal groups may be disposed to face the third terminal group.

Here, the positive terminal and the negative terminal of the first terminal group are electrically connected to the external power supply and the noise removal circuit of the second board, receive power from the power supply, and output the received power to the noise removal circuit. .

In addition, the positive terminal and the negative terminal of the second terminal group are electrically connected to the core coil of the first board, the terminal of the third terminal group, and the outdoor unit to receive and input power from which noise is removed from the core coil of the first board. The received power may be output to the terminal of the third terminal group and the outdoor unit.

Then, the positive terminal and the negative terminal of the third terminal group are electrically connected to the terminal of the second terminal group and the terminal of the fourth terminal group, and receive the noise-removed power from the terminal of the second terminal group, and the received power may be output as a terminal of the fourth terminal group.

And, the positive terminal and the negative terminal of the fourth terminal group are electrically connected to the terminal of the third terminal group and the indoor unit, so that noise-removed power is input from the terminal of the third terminal group and the received power is output to the indoor unit. can

5 is a view for explaining a fastening structure of the EMC filter module according to the present invention.

As shown in FIG. 5 , the EMC filter module 400 may have a three-layer structure in which first, second, and third substrates 410 , 420 , 430 are sequentially stacked. The first, second, and third substrates 410 , 420 , and 430 may be coupled to each other through an adhesive or a fastening member.

For example, a first coupling part 416 for coupling with the second substrate 420 may be disposed in an edge region of the upper surface 410a of the first substrate 410 .

In addition, a second fastening part 424 for coupling to the first substrate 410 may be disposed in an edge region of the lower surface 420b of the second substrate 420 , and an upper surface of the second substrate 420 may be disposed. A third coupling part 426 for coupling with the third substrate 430 may be disposed in the edge region of the 420a.

Here, the second fastening part 424 may be disposed to correspond to the first fastening part 416 of the first substrate 410 .

In some cases, the second fastening part 424 may have a different fastening structure from the third fastening part 426 .

For example, the second fastening part 424 may have a fastening groove shape when the third fastening part 426 has a fastening protrusion shape, and may have a fastening protrusion shape when the third fastening part 426 has a fastening groove shape. can

Here, the reason why the second fastening part 424 has a different fastening structure from the third fastening part 426 is that the second substrate 420 exerts a bonding force between the first and third substrates 410 and 430 . in order to elevate

As another case, the second fastening part 424 may have the same fastening structure as the third fastening part 426 .

For example, if the third fastening part 426 has a fastening protrusion shape, the second fastening part 424 may have the same fastening protrusion shape, and if the third fastening part 426 has a fastening groove shape, it is similarly fastened It may have a groove shape.

Here, the reason why the second fastening part 424 has the same fastening structure as that of the third fastening part 426 is that the manufacturing cost is reduced because the fastening member formed on the second substrate 420 is simple to manufacture.

Also, the second fastening part 424 and the third fastening part 426 of the second substrate 420 may not correspond to each other and may be disposed to be shifted from each other.

Here, the reason for disposing the second fastening part 424 and the third fastening part 426 to be shifted from each other is that the second substrate 420 exerts a bonding force between the first and third substrates 410 and 430 . because it can increase.

In some cases, the second fastening part 424 and the third fastening part 426 of the second substrate 420 may be disposed to correspond to each other.

Here, the reason for disposing the second fastening part 424 and the third fastening part 426 to correspond to each other is that the manufacturing cost of the fastening member formed on the second substrate 420 is reduced because it is simple to manufacture.

Next, a fourth fastening part 432 for coupling with the second substrate 420 may be disposed in an edge region of the lower surface 430b of the third substrate 430 .

Here, the fourth fastening part 432 may be disposed to correspond to the third fastening part 426 of the second substrate 420 .

6 is a view for explaining the first substrate of the EMC filter module according to the present invention, Figure 7 is a view for explaining the second substrate of the EMC filter module according to the present invention, Figure 8 is EMC according to the present invention It is a figure for demonstrating the 3rd board|substrate of a filter module.

As shown in FIG. 6 , a core 412 on which a coil 414 is wound may be disposed on the first substrate 410 of the EMC filter module 400 .

Here, the core 412 disposed on the first substrate 410 may be, for example, a ferrite core, but is not limited thereto.

Also, the coil of the core 412 disposed on the first substrate 410 may include first, second, third, and fourth coil terminals 414a, 414b, 414c, and 414d. The second coil terminals 414a and 414b are electrically connected to the terminal 10 of the third substrate 430 , and the third and fourth coil terminals 414c and 414d are connected to the noise removal circuit ( 422) may be electrically connected.

For example, the first coil terminal 414a is electrically connected to the positive terminal 11 of the third substrate 430 , and the second coil terminal 414b is connected to the negative terminal 12 of the third substrate 430 . may be electrically connected.

Next, as shown in FIG. 7 , the second substrate 420 of the EMC filter module 400 is located on the first substrate 410 and is electrically connected to the coil 414 to remove noise. 422) may be disposed.

Here, the noise removal circuit 422 disposed on the second substrate 420 may include first, second, third, and fourth circuit terminals 422a, 422b, 422c, and 422d. The second circuit terminals 422a and 422b are electrically connected to the power input terminal of the third board 430 , and the third and fourth circuit terminals 422c and 422d are the core coil 414 of the first board 410 . can be electrically connected to

For example, the first circuit terminal 422a is electrically connected to the positive terminal 11 of the third substrate 430 , and the second circuit terminal 422b is connected to the negative terminal 12 of the third substrate 430 . may be electrically connected.

Next, as shown in FIG. 8 , the third substrate 430 of the EMC filter module 400 is located on the second substrate 420 , is electrically connected to the noise removal circuit 422 , and is electrically connected to the outdoor unit and the indoor unit. A plurality of terminals 10 to be connected may be disposed.

Here, the plurality of terminals 10 disposed on the third substrate 430 may include a plurality of terminal groups including a positive terminal 11 , a negative terminal 12 , and a ground terminal 13 .

For example, the plurality of terminal groups includes first and fourth terminal groups 10a and 10d disposed on one edge of the third substrate 430 , and second and second terminal groups disposed on the other edge of the third substrate 430 . It may include three terminal groups 10b and 10c.

Here, the first terminal group 10a may be disposed to face the second terminal group 10b, and the fourth terminal group 10d may be disposed to face the third terminal group 10c.

Here, the positive terminal 11a and the negative terminal 12a of the first terminal group 10a are electrically connected to an external power supply and the noise removal circuit 422 of the second board 420, and power is supplied from the power supply. may be input and output the received power to the noise removal circuit 422 .

In addition, the positive terminal 11b and the negative terminal 12b of the second terminal group 10b are electrically connected to the core coil 414 of the first board 410, the terminal of the third terminal group 10c, and the outdoor unit. Thus, it is possible to receive power from which noise has been removed from the core coil 414 of the first substrate 410 and output the received power to the terminal of the third terminal group 10c and the outdoor unit.

Then, the positive terminal 11c and the negative terminal 12c of the third terminal group 10c are electrically connected to the terminal of the second terminal group 10b and the terminal of the fourth terminal group 10d, so that the second terminal Power from which noise has been removed may be input from a terminal of the group 10b, and the received power may be output to a terminal of the fourth terminal group 10d.

And, the positive terminal 11d and the negative terminal 12d of the fourth terminal group 10d are electrically connected to the terminal of the third terminal group 10c and the indoor unit, and noise is generated from the terminal of the third terminal group 10c. may receive the removed power and output the received power to the indoor unit.

9 and 10 are views showing a third substrate of the EMC filter module according to the present invention. FIG. 9 is a perspective view, and FIG. 10 is a cross-sectional view of FIG. 9 .

9 and 10 , the third substrate 430 of the EMC filter module is located on the second substrate, is electrically connected to the noise removal circuit of the second substrate, and is electrically connected to the outdoor unit and the indoor unit. of terminals may be disposed.

For example, the third substrate 430 includes a body 435 that forms an exterior and supports a plurality of power lines, a plurality of terminals 436 disposed on both sides of the body 435 and coupled to the power lines, and a power line. may include an attachment screw 437 for fixing the to the terminal 436 .

Here, the body 435 of the third substrate 430 may include a plurality of barrier ribs 438 disposed between adjacent terminals 436 to electrically insulate the terminals 436 .

11 is a view showing electrical wiring of the EMC filter module according to the present invention.

11 , a core on which a coil is wound is disposed on the first substrate 410 of the EMC filter module 400 , and the coil of the core 412 includes first, second, third, and fourth coils. terminals 414a, 414b, 414c, and 414d.

Here, the first and second coil terminals 414a and 414b may be electrically connected to the positive terminal 11b and the negative terminal 12b of the second terminal group 10b among the terminals of the third substrate 430 . .

In this case, among the terminals of the third substrate 430 , the positive terminal 11b and the negative terminal 12b of the second terminal group 10b may be power output terminals for outputting input power.

In addition, the third and fourth coil terminals 414c and 414d may be electrically connected to the noise removing circuit 422 of the second substrate 420 .

Here, the third and fourth coil terminals 414c and 414d may be electrically connected to the third and fourth circuit terminals 422c and 422d among the terminals of the noise removing circuit 422 of the second substrate 420 . have.

In this case, among the terminals of the noise removing circuit 422 of the second substrate 420 , the third and fourth circuit terminals 422c and 422d may be output terminals of the noise removing circuit 422 .

Next, the second substrate 420 of the EMC filter module 400 is located on the first substrate 410 , is electrically connected to the coil of the first substrate 410 , and is a noise removal circuit for removing noise from the input power. 422 may be disposed. The noise removal circuit 422 disposed on the second substrate 420 may include first, second, third, and fourth circuit terminals 422a, 422b, 422c, and 422d. can

Here, the first and second circuit terminals 422a and 422b are electrically connected to the power input terminal of the third substrate 430 , and the third and fourth circuit terminals 422c and 422d are connected to the first substrate 410 . may be electrically connected to the core coil 414 of

That is, the first and second circuit terminals 422a and 422b may be electrically connected to the positive terminal 11a and the negative terminal 12a of the first terminal group 10a among the terminals of the third substrate 430 . .

In this case, among the terminals of the third substrate 430 , the positive terminal 11a and the negative terminal 12a of the first terminal group 10a may be power input terminals to which power is input from the outside.

In addition, the third and fourth circuit terminals 422c and 422d may be electrically connected to third and fourth coil terminals 414c and 414d among the core coil terminals of the first substrate 410 .

Next, the third substrate 430 of the EMC filter module 400 is positioned on the second substrate 420 and electrically connected to the noise removal circuit 422 and a plurality of terminals electrically connected to the outdoor unit and the indoor unit are disposed. In this case, the positive terminal 11a and the negative terminal 12a of the first terminal group 10a are electrically connected to an external power supply to receive power, and the first of the noise removal circuit of the second board 420 is , may be electrically connected to the second circuit terminals 422a and 422b to output power received from the power supply to the first and second circuit terminals 422a and 422b of the noise removal circuit.

In addition, the positive terminal 11b and the negative terminal 12b of the second terminal group are electrically connected to the first and second coil terminals 414a and 414b of the core coil of the first substrate 410 to remove noise. It receives power, is electrically connected to the positive terminal 11c and the negative terminal 12c of the third terminal group, and passes the positive terminal 11d and the negative terminal 12d of the fourth terminal group to receive power from which noise has been removed. It outputs to the indoor unit, and it is directly electrically connected to the outdoor unit, so that noise-removed power can be output to the outdoor unit.

Next, the positive terminal 11c and the negative terminal 12c of the third terminal group are electrically connected to the positive terminal 11b and the negative terminal 12b of the second terminal group to receive power from which noise has been removed, It is electrically connected to the positive terminal 11d and the negative terminal 12d of the 4-terminal group to output power from which noise is removed.

Then, the positive terminal 11d and the negative terminal 12d of the fourth terminal group receive power from which noise is removed from the positive terminal 11c and the negative terminal 12c of the third terminal group 10c, and the indoor unit Power from which noise has been removed through direct electrical connection can be output to the indoor unit.

12 is a view for explaining the flow of power applied to the outdoor unit and the indoor unit through the EMC filter module according to the present invention.

12 , the EMC filter module 400 may include a plurality of terminal groups including a positive terminal, a negative terminal, and a ground terminal.

Here, the plurality of terminal groups may include first and fourth terminal groups disposed on one edge of the third board, and second and third terminal groups disposed on the other edge of the third board.

The positive terminal 11a and the negative terminal 12a of the first terminal group are electrically connected to the external power supply unit and the noise removal circuit of the second board, receive power from the power supply unit, and convert the received power to the noise removal circuit can be printed out.

In addition, the positive terminal 11b and the negative terminal 12b of the second terminal group are electrically connected to the core coil of the first board, the terminal of the third terminal group 10c and the outdoor unit, and are electrically connected to the core coil of the first board. The noise-removed power may be received, and the received power may be output to the terminal of the third terminal group and the outdoor unit 100 .

Accordingly, since the outdoor unit 100 is driven by receiving power from which noise has been removed, a malfunction caused by electromagnetic waves can be minimized.

Then, the positive terminal 11c and the negative terminal 12c of the third terminal group are electrically connected to the terminal of the second terminal group and the terminal of the fourth terminal group, so that noise is removed from the terminal of the second terminal group may be input and output the received power to the terminal of the fourth terminal group.

And, the positive terminal 11d and the negative terminal 12d of the fourth terminal group are electrically connected to the terminal of the third terminal group and the indoor unit, and receive and receive power from which noise has been removed from the terminal of the third terminal group Power may be output to the indoor unit 200 .

Accordingly, since the indoor unit 200 is driven by receiving power from which noise has been removed, a malfunction caused by electromagnetic waves can be minimized.

13 is a view showing the position of the EMC filter module of the air conditioner according to the present invention.

13 , the EMC filter module 400 may be disposed at the power input terminal of the outdoor unit 100 .

The reason is that it may be advantageous to arrange the EMC filter module 400 at the power input terminal of the outdoor unit 100 in order to block noise generated from the initial input power.

Accordingly, the EMC filter module 400 of the present invention can remove noise from the input power and output it to the outdoor unit 100 and the indoor unit.

However, in some cases, the EMC filter module 400 may be disposed at the power input terminal of the indoor unit, or in other cases, the EMC filter module 400 itself may be independently disposed except for the outdoor unit 100 and the indoor unit.

As described above, according to the present invention, an outdoor unit and indoor unit integrated EMC filter module is manufactured by stacking a first board on which a core is disposed, a second board on which a noise removal circuit is disposed, and a third board on which a plurality of terminals are disposed. The size and manufacturing cost of the box can be reduced.

In addition, according to the present invention, by installing an integrated EMC filter module at the power input stage, it is possible to not only reduce the EMC debugging load of developers, but also satisfy the EMC compliance of the air conditioner in the main market.

Features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, etc. illustrated in each embodiment can be combined or modified for other embodiments by those of ordinary skill in the art to which the embodiments belong. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present invention.

In addition, although the embodiment has been described above, it is only an example and does not limit the present invention, and those of ordinary skill in the art to which the present invention pertains are exemplified above in a range that does not depart from the essential characteristics of the present embodiment. It can be seen that various modifications and applications that have not been made are possible. For example, each component specifically shown in the embodiment can be implemented by modification. And differences related to such modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

100: outdoor unit
200: indoor unit
400: EMC filter module
410: first substrate
420: second substrate
430: third substrate

Claims (10)

outdoor unit;
an indoor unit electrically connected to the outdoor unit to perform air conditioning; and,
and an EMC (Electro Magnetic Compatibility) filter module that removes the noise of the input power and outputs it to the outdoor unit and the indoor unit,
The EMC filter module,
a first substrate on which a core on which a coil is wound is disposed;
a second substrate disposed on the first substrate and electrically connected to the coil on which a noise removing circuit for removing the noise is disposed;
and a third substrate disposed above the second substrate, electrically connected to the noise removing circuit, and provided with a plurality of terminals electrically connected to the outdoor unit and the indoor unit. According to claim 1, wherein the EMC filter module,
The air conditioner, characterized in that it has a three-layer structure in which the first, second, and third substrates are sequentially stacked. According to claim 1, wherein the coil of the core disposed on the first substrate,
1 , 2 , 3 , and 4 coil terminals,
The first and second coil terminals are
electrically connected to the terminal of the third board,
The third and fourth coil terminals are
The air conditioner according to claim 1, wherein the second substrate is electrically connected to a noise canceling circuit. According to claim 1, wherein the noise removal circuit disposed on the second substrate,
1 , 2 , 3 , and 4 circuit terminals comprising:
The first and second circuit terminals are
electrically connected to the power input terminal of the third board;
The third and fourth circuit terminals are
The air conditioner according to claim 1, wherein the air conditioner is electrically connected to the core coil of the first substrate. According to claim 1, wherein the plurality of terminals disposed on the third substrate,
An air conditioner comprising a plurality of terminal groups including a positive terminal, a negative terminal, and a ground terminal. According to claim 5, wherein the plurality of terminal groups,
first and fourth terminal groups disposed on one edge of the third substrate;
and second and third terminal groups disposed on the other edge of the third substrate;
The first terminal group comprises:
disposed to correspond to the second terminal group to face,
The fourth terminal group,
The air conditioner according to claim 1, wherein the third terminal group is arranged to face each other. The method of claim 6, wherein the positive terminal and the negative terminal of the first terminal group,
The air conditioner according to claim 1, wherein the air conditioner is electrically connected to an external power supply unit and the noise removal circuit of the second substrate, receives power from the power supply unit, and outputs the received power to the noise removal circuit. According to claim 6, wherein the positive terminal and the negative terminal of the second terminal group,
It is electrically connected to the core coil of the first board, the terminal of the third terminal group, and the outdoor unit, receives power from which noise is removed from the core coil of the first board, and transmits the received power to the third terminal group An air conditioner, characterized in that the output is output to the terminal and the outdoor unit. The method of claim 6, wherein the positive terminal and the negative terminal of the third terminal group,
It is electrically connected to the terminal of the second terminal group and the terminal of the fourth terminal group, receives power from which noise is removed from the terminal of the second terminal group, and transfers the received power to the terminal of the fourth terminal group Air conditioner, characterized in that the output. The method of claim 6, wherein the positive terminal and the negative terminal of the fourth terminal group,
The air conditioner according to claim 1, wherein the air conditioner is electrically connected to the terminal of the third terminal group and the indoor unit, receives power from which noise is removed from the terminal of the third terminal group, and outputs the received power to the indoor unit.

Images