WO2020208673A1 - Indoor unit for air conditioner - Google Patents

Indoor unit for air conditioner Download PDF

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Publication number
WO2020208673A1
WO2020208673A1 PCT/JP2019/015275 JP2019015275W WO2020208673A1 WO 2020208673 A1 WO2020208673 A1 WO 2020208673A1 JP 2019015275 W JP2019015275 W JP 2019015275W WO 2020208673 A1 WO2020208673 A1 WO 2020208673A1
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WO
WIPO (PCT)
Prior art keywords
connector
terminal
terminal block
tab terminal
tab
Prior art date
Application number
PCT/JP2019/015275
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French (fr)
Japanese (ja)
Inventor
達実 枝木
周平 横田
真人 畑
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2021513038A priority Critical patent/JP7069411B2/en
Priority to PCT/JP2019/015275 priority patent/WO2020208673A1/en
Publication of WO2020208673A1 publication Critical patent/WO2020208673A1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling

Definitions

  • the present invention relates to an indoor unit of an air conditioner, and particularly to the shape of a board and a connector on which a terminal block and a tab terminal are mounted.
  • the power supply path to the power supply board of the indoor unit branches from the middle of the power supply path to the outdoor unit.
  • One of the two internal wires connected to the commercial power supply is connected to the tab terminal provided in the outdoor unit power supply relay provided on the power supply board.
  • the tab terminal provided on the outdoor unit power supply relay is connected to the fuse via the pattern of the power supply board, and further connected to the capacitor and varistor, and is connected to the power supply board of the indoor unit via the board directly attached harness. Power is supplied (see, for example, Patent Document 1).
  • the other internal electric wire is connected to a tab terminal provided on the terminal block, is connected to a thermal fuse, a capacitor, and a varistor from a solder electrode via a pattern, and is supplied to a power supply board via a harness directly attached to the board. .. Since only the power consumed by the indoor unit is supplied to these power supply paths, a large current that generally exceeds 5 A does not flow.
  • the tab terminal of the power feeding board and the connector inserted therein all have the same shape.
  • the plurality of connectors and the plurality of tab terminals can be connected to each other, there is a problem that erroneous connection occurs during assembly.
  • connectors having different shapes may be used to prevent erroneous connection, there is a problem that it is not certain that the correct connector is recognized by the visual and tactile senses of the assembler.
  • the present invention has been made to solve the above problems, and an object of the present invention is to provide an indoor unit of an air conditioner capable of correctly connecting two connectors to be connected.
  • the indoor unit of the air conditioner according to the present invention is arranged on the electric component box arranged inside the housing, the power supply board arranged inside the electric component box, and the power supply substrate.
  • a first connector and a second connector having an insertion port to be inserted are provided, the first connector is connected to the board tab terminal, the second connector is connected to the terminal block tab terminal, and the terminal.
  • a wall extending in a direction intersecting the surface of the power supply board on which the terminal block is arranged is arranged around the base tab terminal, and the first connector is provided with respect to the direction in which the board tab terminal is inserted.
  • Ribs projecting in at least two directions in the vertical direction are formed, and the dimension from the center of the insertion port of the first connector to the tip of the rib is larger than the distance between the terminal block tab terminal and the wall.
  • the difference between the two connectors can be recognized visually and tactilely, and one connector provided with ribs is one of the two tab terminals on the power feeding board. Since it has a structure that can be connected only to, it is possible to obtain a structure that can prevent erroneous connection.
  • FIG. 1 It is a perspective view which showed the indoor unit 100 of the air conditioner which concerns on Embodiment 1.
  • FIG. It is a perspective view which showed the internal structure of the indoor unit 100 of the air conditioner which concerns on Embodiment 1.
  • FIG. It is explanatory drawing which showed the internal structure of the electric part box 1 of the indoor unit 100 of the air conditioner which concerns on Embodiment 1.
  • FIG. It is a perspective view of the power supply board 3 of the indoor unit 100 of the air conditioner which concerns on Embodiment 1.
  • FIG. It is a perspective view of the terminal block 4 mounted on the power supply board 3 of FIG. It is a perspective view which shows the state before attaching the 1st connector 7 and the 2nd connector 8 to the power feeding board 3 of FIG.
  • FIG. 1 It is a perspective view which shows the state after the 1st connector 7 and the 2nd connector 8 are attached to the power feeding board 3 of FIG. It is a perspective view of the 1st connector 7 of FIG. It is a perspective view of the 2nd connector 8 of FIG. It is a schematic diagram in the case of trying to connect the 1st connector 7 which concerns on Embodiment 1 to a terminal block tab terminal 5. It is a schematic diagram in the case where the 1st connector 7 is tried to connect to the terminal block tab terminal 5 of the terminal block 4a which is a modification of the terminal block 4 which concerns on Embodiment 1. FIG. It is a perspective view of the 1st connector 7a which is a modification of the 1st connector 7 which concerns on Embodiment 1. FIG.
  • FIG. 1 It is a schematic diagram in the case of trying to connect the 1st connector 7a which is the modification of the 1st connector 7 to the terminal block tab terminal 5 of the terminal block 4b which is the modification of the terminal block 4 which concerns on Embodiment 1.
  • FIG. 1 It is a schematic diagram in the case of trying to connect the 1st connector 7a which is the modification of the 1st connector 7 to the terminal block tab terminal 5 of the terminal block 4b which is the modification of the terminal block 4 which concerns on Embodiment 1.
  • FIG. 1 is a perspective view showing an indoor unit 100 of the air conditioner according to the first embodiment.
  • FIG. 2 is a perspective view showing the internal structure of the indoor unit 100 of the air conditioner according to the first embodiment. First, the structure of the indoor unit 100 of the air conditioner according to the first embodiment will be described.
  • the indoor unit 100 of the air conditioner shown in FIG. 1 is attached to, for example, a wall of a room to air-condition the room, and is connected to an outdoor unit (not shown) by a refrigerant pipe to form a refrigeration cycle. ..
  • the indoor unit 100 has a housing 10 that forms an outer shell.
  • the housing 10 is composed of a back panel 11 attached to an installation plate fixed to a wall surface and a front panel 12 attached to the back panel 11.
  • the back panel 11 and the front panel 12 function as design panels.
  • the front panel 12 is arranged in the y direction of the back panel 11.
  • the surface of the housing 10 on the y-direction side is the front surface
  • the surface of the housing 10 opposite to the y-direction is the back surface
  • the surface of the housing 10 on the x-direction side is the left side surface
  • the housing 10 The surface on the opposite side in the x direction is referred to as the right side surface
  • the surface on the z direction side of the housing 10 is referred to as the upper surface
  • the surface on the z direction opposite side of the housing 10 is referred to as the bottom surface.
  • a suction port 13 serving as an inlet for indoor air is provided on the upper surface of the housing 10. Further, an air outlet 14 extending in the left-right direction is provided in the lower portion of the housing 10. The air outlet 14 is provided with a wind direction adjusting plate or the like for controlling the wind direction of the blown air in the vertical direction or the horizontal direction.
  • a heat exchanger 15 and an electric component box 1 are arranged inside the housing 10.
  • the heat exchanger 15 is arranged so that the longitudinal direction extends in the left-right direction of the housing 10, and is arranged in the air passage in the housing 10 from the suction port 13 to the air outlet 14.
  • the heat exchanger 15 exchanges heat between the indoor air taken in from the suction port 13 and the refrigerant.
  • a blower (not shown) is installed inside the housing 10, and air whose temperature is adjusted by heat exchange by the blower is blown into the room from the air outlet 14.
  • the electrical component box 1 is arranged at the end portion in the longitudinal direction of the housing 10, and is located at the end portion on the right side surface side.
  • FIG. 3 is an explanatory view showing the internal structure of the electrical component box 1 of the indoor unit 100 of the air conditioner according to the first embodiment.
  • a power supply board 3 and a power supply board 20 are provided inside the electrical component box 1.
  • the power supply board 3 and the power supply board 20 are divided and connected by a harness 32.
  • the power supply board 3 is provided with a terminal block 4 and a tab terminal 6 (see FIG. 4) directly mounted on the power supply board 3.
  • the terminal block 4 is also provided with a tab terminal 5 (see FIG. 4).
  • the second connector 8 is connected to the tab terminal 5, and the first connector 7 is connected to the tab terminal 6.
  • the first connector 7 and the second connector 8 are connected to, for example, a commercial power source and are provided at the tip of the internal wiring branched into two.
  • the tab terminal 5 may be referred to as a terminal block tab terminal 5
  • the tab terminal 6 may be referred to as a board tab terminal 6.
  • FIG. 4 is a perspective view of the power supply substrate 3 of the indoor unit 100 of the air conditioner according to the first embodiment.
  • FIG. 5 is a perspective view of the terminal block 4 mounted on the power feeding board 3 of FIG.
  • FIG. 5 is a perspective view of the terminal block 4 as viewed from a different viewpoint from that of FIG.
  • the power supply substrate 3 is a rectangular printed circuit board.
  • the terminal block 4 is arranged on the power feeding board 3, and the external power supply relays 31 are arranged so as to be adjacent to each other in the direction along the long side of the power feeding board 3.
  • a tab terminal 6 is directly soldered onto the power supply board 3.
  • mounting components 36 such as a harness 32, a fuse 33, a capacitor 34, and a varistor 35 are arranged in parallel in a direction along the short side of the power feeding board 3.
  • the external power supply relay 31 and the mounting component 36 arranged on the power supply board 3 of the first embodiment are examples, and can be replaced with other electronic components or structural components. Further, the external power supply relay 31 according to the first embodiment may be referred to as a first mounting component.
  • the terminal block 4 is provided with a terminal block tab terminal 5.
  • the terminal block 4 has a substantially rectangular parallelepiped shape, and a port 44 into which a connector having a shape different from that of the second connector 8 is inserted is installed.
  • the terminal block tab terminal 5 is installed on the terminal block 4 on the side where the external power supply relay 31 is arranged.
  • the terminal block 4 has a concave shape 40 formed by cutting out the external power supply relay 31 side from a viewpoint in the direction perpendicular to the surface of the power supply board 3 on which the terminal block 4 is arranged.
  • the terminal block tab terminal 5 is surrounded on three sides by walls 41, 42, and 43 of the concave shape 40 formed on the terminal block 4, and there is no wall on the side where the external power relay 31 is installed. It is open.
  • the walls 41, 42, and 43 extend in a direction intersecting the surface on which the terminal block 4 of the power supply substrate 3 is arranged, more specifically, in a direction orthogonal to the surface.
  • the external power supply relay 31 is arranged adjacent to the terminal block 4 on the power supply board 3, and the open side of the concave shape 40 of the terminal block 4 provided with the terminal block tab terminal 5 is provided. It is arranged so as to block.
  • the terminal block tab terminal 5 is surrounded on all sides by the walls 41, 42, 43, and the side surfaces of the external power relay 31.
  • FIG. 6 is a perspective view showing a state before attaching the first connector 7 and the second connector 8 to the power supply board 3 of FIG.
  • FIG. 7 is a perspective view showing a state after the first connector 7 and the second connector 8 are attached to the power feeding board 3 of FIG.
  • FIG. 8 is a perspective view of the first connector 7 of FIG.
  • FIG. 9 is a perspective view of the second connector 8 of FIG.
  • the first connector 7 and the second connector 8 are attached to the tip of the wiring connected to the power supply, and although omitted in the drawing, the internal wiring extends from the root portion.
  • the first connector 7 is attached to the board tab terminal 6 from the direction perpendicular to the surface of the power feeding board 3.
  • the second connector 8 is attached to the terminal block tab terminal 5 from the direction perpendicular to the surface of the power feeding board 3.
  • the first connectors 7 and 8 are pressed against the power supply board 3 from the tip 52 side and attached to the board tab terminal 6 and the terminal block tab terminal 5.
  • the terminal block tab terminal 5 or the board tab terminal 6 is inserted into the tip 52 located on the power supply board 3 side, that is, the end opposite to the root portion 53 of the first connector 7 and the second connector 8.
  • the mouth 50 is formed.
  • the tab terminals 5 and 6 are thin plate-shaped terminals, and are formed wide in the plate surface direction and thin in the thickness direction.
  • the insertion openings 50 provided at the tips 52 of the first connector 7 and the second connector 8 are the tab terminals 5 and the tab terminals 5 and 6 when the plate surfaces of the tab terminals 5 and 6 are directed in the p direction shown in FIGS. 8 and 9. It is formed so that 6 is inserted.
  • the insertion port 50 is formed so that the tab terminals 5 and 6 are not inserted when the plate surfaces of the tab terminals 5 and 6 are directed in the q direction. That is, the insertion port 50 has a narrow width in a predetermined direction and a wide width in a direction orthogonal to the one direction.
  • the first connectors 7 and 8 need to be connected after being oriented with the tab terminals 5 and 6. Note that the p-direction and the q-direction shown in FIGS. 6 and 7 are directions parallel to the plane perpendicular to the direction in which the first connectors 7 and 8 are pressed against the power feeding substrate 3, and are orthogonal to each other. is there. Further, the r direction coincides with the direction in which the first connectors 7 and 8 are pressed against the power feeding board 3.
  • the shape of the tip 52 and the shape of the main body 51 of the first connector 7 and the second connector 8 are similarly formed.
  • the first connector 7 is formed with a rib 70 protruding from the main body 51 at a position on the root portion 53 side from the tip 52.
  • the rib 70 is provided over the entire circumference of the main body 51 in a direction orthogonal to the direction in which the first connector 7 is pressed against the power feeding substrate 3.
  • the main body 51 of the first connector 7 and the second connector 8 has a rectangular parallelepiped shape, and one end of the rectangular parallelepiped in the longitudinal direction is the tip 52 and the other end is the root portion 53.
  • the rib 70 is formed on the tip 52 side of the main body 51 of the first connector 7.
  • the second connector 8 is not provided with the rib 70.
  • the distance w1 from the center of the insertion port 50 of the first connector 7 to the tip of the rib 70 is smaller than the distance h1 from the center of the board tab terminal 6 to the surrounding mounting component 36.
  • the distance w1 is a distance perpendicular to the longitudinal direction of the insertion port 50, from the tip of the rib 70 to the center of the insertion port 50 when the first connector 7 is projected in the direction of pressing against the power supply substrate 3. Is the distance.
  • the distance h1 is a distance in the direction along the surface on the power feeding board 3 on which the components are installed, and is a distance from the center of the board tab terminal 6.
  • the mounting component 36 around the board tab terminal 6 and the external power supply relay 31 are arranged apart by a distance h2 in the direction along the wide surface of the board tab terminal 6.
  • the distance h2 is set to be larger than the width w2 at the tip of the rib 70 of the first connector 7.
  • the distance h3 from the center of the board tab terminal 6 to the external power supply relay 31 or the mounting component 36 is set to be larger than the distance w3 from the center line of the first connector 7 to the tip of the rib 70.
  • the second connector 8 connected to the terminal block tab terminal 5 has a shape in which the rib 70 is removed from the first connector 7.
  • the terminal block 4 is formed so as to surround the terminal block tab terminal 5 with walls 41, 42, and 43.
  • the distance h4 from the center of the terminal block tab terminal 5 to the surrounding walls 41, 42, and 43 is set to be larger than the distance w4 from the center of the second connector 8 to the outer peripheral surface of the main body 51 of the second connector 8. There is. Therefore, the second connector 8 can be connected to the terminal block tab terminal 5 provided on the terminal block 4.
  • the first connector 7 has a structure that cannot be connected to the terminal block tab terminal 5 of the terminal block 4. That is, the distances w1 and w3 from the center of the first connector 7 to the tip of the rib 70 are set to be larger than the distance h4 from the center of the terminal block tab terminal 5 to the surrounding walls 41, 42, and 43. There is. Therefore, when the first connector 7 is to be connected to the terminal block tab terminal 5, the rib 70 is caught on the upper surface of the terminal block 4, and the first connector 7 cannot be inserted into the concave shape 40 of the terminal block 4. With such a configuration, it is possible to prevent the first connector 7 from being connected to the terminal block tab terminal 5, which is an erroneous tab terminal.
  • first connector 7 and the second connector 8 which are liable to cause two erroneous connections are attached to the power feeding board 3 of the first embodiment.
  • FIG. 10 is a schematic view when the first connector 7 according to the first embodiment is to be connected to the terminal block tab terminal 5.
  • FIG. 10 shows a state of the power feeding board 3 viewed from a direction perpendicular to the surface on which the terminal block 4 is installed.
  • the first connector 7 and the terminal block 4 are formed so that the rib 70 of the first connector 7 comes into contact with the upper surface of the terminal block 4, the first connector 7 is attached to the terminal block 4. It cannot be inserted into the formed concave shape 40.
  • the center of the insertion port 50 of the first connector 7 and the center of the terminal block tab terminal 5 are points C.
  • the distance w1 from the point C to the tip of the rib 70 and the distance h4 from the point C to the wall 41 are w1> h4.
  • the distance h4 from the point C to the wall 41 and the distance w1 from the point C to the tip of the rib 70 of the first connector 7 are compared and displayed.
  • w1> h4 or w3> h4 holds.
  • FIG. 11 is a schematic view when the first connector 7 is to be connected to the terminal block tab terminal 5 of the terminal block 4a, which is a modification of the terminal block 4 according to the first embodiment.
  • the terminal block 4a has a shape in which the walls 41 and 43 of the terminal block 4 are removed. As described above, if the wall around the terminal block tab terminal 5 is provided on at least one side, the first connector 7 cannot be connected to the terminal block tab terminal 5.
  • the terminal block 4a has a wall 42 at a distance h4 from the point C which is the center of the terminal block tab terminal 5 on at least one of the periphery of the terminal block tab terminal 5. It is possible to prevent erroneous connection of 1 connector 7.
  • the relationship w3> h4 is established between the distance w3 from the point C, which is the center of the insertion port 50 of the first connector 7a, to the tip of the rib 70 and the distance h4 from the point C to the wall 42.
  • FIG. 12 is a perspective view of the first connector 7a, which is a modified example of the first connector 7 according to the first embodiment.
  • the first connector 7a is such that the rib 71 is projected only in two opposite directions. Although the rib 70 of the first connector 7 projects over the entire circumference of the main body 51, it is possible to prevent erroneous connection of the first connector 7 only in two directions.
  • FIG. 13 is a schematic view of a case where the first connector 7a, which is a modified example of the first connector 7, is connected to the terminal block tab terminal 5 of the terminal block 4b, which is a modified example of the terminal block 4 according to the first embodiment.
  • the first connector 7a of the modified example includes a rib 71 projecting in two directions perpendicular to the longitudinal direction of the insertion port 50.
  • a wall 41 located in the direction perpendicular to the plate surface of the terminal block tab terminal 5 is installed at a distance h4 from the center of the terminal block tab terminal 5.
  • the first connector 7a is the terminal block tab terminal 5. Cannot connect with. Therefore, erroneous connection of the first connector 7a can be prevented. Since the ribs 71 of the first connector 7a project in two opposite directions, the first connector 7a cannot be connected to the terminal block tab terminal 5 even when rotated by 180 ° about the point C. Further, since the first connector 7a has a configuration in which the terminal block tab terminal 5 cannot be inserted into the insertion port 50 even when it is rotated by 90 ° about the point C, it cannot be connected to the terminal block tab terminal 5.
  • FIG. 14 is a schematic view of a case where the first connector 7b, which is a modification of the first connector 7, is connected to the terminal block tab terminal 5 of the terminal block 4b, which is a modification of the terminal block 4 according to the first embodiment.
  • the first connector 7b of the modified example is provided with a rib 71 in a direction orthogonal to the first connector 7a. That is, the first connector 7b includes ribs 71 that project in two directions in the longitudinal direction of the insertion port 50.
  • the terminal block 4a is provided with a wall 42 at a position of a distance h4 in one direction in the width direction of the terminal block tab terminal 5. As described above, even when the wall is installed at the position of the distance h4 in only one direction around the terminal block tab terminal 5, the first connector 7b cannot be connected to the terminal block tab terminal 5. Therefore, erroneous connection of the first connector 7b can be prevented.
  • the configuration of the indoor unit 100 of the illustrated air conditioner is an example and is not limited to the above-mentioned contents.
  • air conditioning including other components.
  • the same can be performed for the indoor unit 100 of the machine.
  • the shapes of the first connectors 7, 7a, and 7b are appropriately shaped as long as the ribs 70, 71 and the terminal blocks 4, 4a, 4b can come into contact with each other to hinder the connection to the terminal block tab terminal 5. Can be changed.
  • I would like to add that the technical scope of the embodiment also includes the scope of various changes, applications, and uses made by those skilled in the art as necessary.

Abstract

The purpose of the present invention is to provide an indoor unit for an air conditioner, the indoor unit enabling the correct connection of two connectors that are to be connected. The indoor unit of the air conditioner is provided with: an electrical component box disposed inside a casing; a power-feeding substrate disposed inside the electrical component box; a substrate tab terminal disposed on the power-feeding substrate; a terminal block disposed on the power-feeding substrate; a terminal block tab terminal mounted on the terminal block; and a first connector and a second connector that are connected to a power supply and have tab terminal insertion ports into which the substrate tab terminal and the terminal block tab terminal are inserted. The first connector is connected to the substrate tab terminal, and the second connector is connected to the terminal block tab terminal. A wall extending in a direction intersecting a surface, on which the terminal block of the power-feeding substrate is disposed, is disposed to the periphery of the terminal block tab terminal. A rib projecting in at least two directions perpendicular to the direction in which the substrate tab terminal is inserted is formed in the first connector. The dimension from the center of the insertion port of the first connector to a tip end of the rib is greater than the distance from the terminal block tab terminal to the wall.

Description

空気調和機の室内機Indoor unit of air conditioner
　本発明は、空気調和機の室内機に関し、特に端子台及びタブ端子を実装する基板及びコネクタの形状に関する。 The present invention relates to an indoor unit of an air conditioner, and particularly to the shape of a board and a connector on which a terminal block and a tab terminal are mounted.
　従来の空気調和機によれば、室内機の電源基板への給電経路は、室外機への給電経路の途中から分岐している。商用電源に接続された２つの内部電線のうち一方の内部電線は、給電用基板上に設けられた室外機給電用リレーに設けられたタブ端子に接続される。室外機給電用リレーに設けられたタブ端子は、給電用基板のパターンを介してヒューズに接続され、さらにコンデンサ、及びバリスタに接続されており、基板直付けハーネスを介して室内機の電源基板に給電される（例えば、特許文献１参照）。 According to the conventional air conditioner, the power supply path to the power supply board of the indoor unit branches from the middle of the power supply path to the outdoor unit. One of the two internal wires connected to the commercial power supply is connected to the tab terminal provided in the outdoor unit power supply relay provided on the power supply board. The tab terminal provided on the outdoor unit power supply relay is connected to the fuse via the pattern of the power supply board, and further connected to the capacitor and varistor, and is connected to the power supply board of the indoor unit via the board directly attached harness. Power is supplied (see, for example, Patent Document 1).
　他方の内部電線は、端子台に設けられたタブ端子に接続され、半田付け電極よりパターンを介して温度ヒューズ、コンデンサ、及びバリスタに接続され、基板直付けハーネスを介して電源基板へ給電される。これらの給電経路については、室内機で消費する電力のみを供給するため、一般的に５Ａを超えるような大電流は流れない。 The other internal electric wire is connected to a tab terminal provided on the terminal block, is connected to a thermal fuse, a capacitor, and a varistor from a solder electrode via a pattern, and is supplied to a power supply board via a harness directly attached to the board. .. Since only the power consumed by the indoor unit is supplied to these power supply paths, a large current that generally exceeds 5 A does not flow.
特開２００７－１２０８１８号公報Japanese Unexamined Patent Publication No. 2007-1201818
　特許文献１に開示された発明では、給電用基板が有するタブ端子と、それに挿入されるコネクタは、どれも同じ形状をしている。この場合、複数のコネクタと複数のタブ端子とがどれも接続可能であるため、組み立て時に誤接続が生じるという課題があった。また、誤接続を防止するために異なる形状のコネクタを用いる場合があるが、組み立て作業者の視覚及び触覚により正しいコネクタを認識するのは確実ではないという課題があった。 In the invention disclosed in Patent Document 1, the tab terminal of the power feeding board and the connector inserted therein all have the same shape. In this case, since the plurality of connectors and the plurality of tab terminals can be connected to each other, there is a problem that erroneous connection occurs during assembly. Further, although connectors having different shapes may be used to prevent erroneous connection, there is a problem that it is not certain that the correct connector is recognized by the visual and tactile senses of the assembler.
　本発明は、上記のような課題を解決するためになされたもので、接続すべき２つのコネクタを正しく接続できる空気調和機の室内機を提供することを目的とする。 The present invention has been made to solve the above problems, and an object of the present invention is to provide an indoor unit of an air conditioner capable of correctly connecting two connectors to be connected.
　本発明に係る空気調和機の室内機は、筐体の内部に配置される電気品箱と、前記電気品箱の内部に配置される給電用基板と、前記給電用基板の上に配置された基板タブ端子と、前記給電用基板の上に配置された端子台と、前記端子台の上に実装された端子台タブ端子と、電源に接続され、前記基板タブ端子及び前記端子台タブ端子が挿入される挿入口を有する第１コネクタ及び第２コネクタと、を備え、前記第１コネクタは、前記基板タブ端子に接続され、前記第２コネクタは、前記端子台タブ端子に接続され、前記端子台タブ端子の周囲は、前記給電用基板の前記端子台が配置された面に対し交差する方向に延びる壁が配置され、前記第１コネクタは、前記基板タブ端子が挿入される方向に対して垂直方向の少なくとも２方向に突出するリブが形成され、前記第１コネクタの前記挿入口の中心から前記リブの先端までの寸法は、前記端子台タブ端子から前記壁の間の距離よりも大きい。 The indoor unit of the air conditioner according to the present invention is arranged on the electric component box arranged inside the housing, the power supply board arranged inside the electric component box, and the power supply substrate. The board tab terminal, the terminal block arranged on the power supply board, the terminal block tab terminal mounted on the terminal block, and the board tab terminal and the terminal block tab terminal connected to the power supply A first connector and a second connector having an insertion port to be inserted are provided, the first connector is connected to the board tab terminal, the second connector is connected to the terminal block tab terminal, and the terminal. A wall extending in a direction intersecting the surface of the power supply board on which the terminal block is arranged is arranged around the base tab terminal, and the first connector is provided with respect to the direction in which the board tab terminal is inserted. Ribs projecting in at least two directions in the vertical direction are formed, and the dimension from the center of the insertion port of the first connector to the tip of the rib is larger than the distance between the terminal block tab terminal and the wall.
　本発明によれば、視覚と触覚とによって２つのコネクタの違いを認識することができ、かつリブが設けられている一方のコネクタは、給電用基板上の２つのタブ端子のうち一方のタブ端子にのみ接続出来る構造になっているため、誤接続を防止できる構造を得ることができる。 According to the present invention, the difference between the two connectors can be recognized visually and tactilely, and one connector provided with ribs is one of the two tab terminals on the power feeding board. Since it has a structure that can be connected only to, it is possible to obtain a structure that can prevent erroneous connection.
実施の形態１に係る空気調和機の室内機１００を示した斜視図である。It is a perspective view which showed the indoor unit 100 of the air conditioner which concerns on Embodiment 1. FIG. 実施の形態１に係る空気調和機の室内機１００の内部構造を示した斜視図である。It is a perspective view which showed the internal structure of the indoor unit 100 of the air conditioner which concerns on Embodiment 1. FIG. 実施の形態１に係る空気調和機の室内機１００の電気品箱１の内部構造を示した説明図である。It is explanatory drawing which showed the internal structure of the electric part box 1 of the indoor unit 100 of the air conditioner which concerns on Embodiment 1. FIG. 実施の形態１に係る空気調和機の室内機１００の給電用基板３の斜視図である。It is a perspective view of the power supply board 3 of the indoor unit 100 of the air conditioner which concerns on Embodiment 1. FIG. 図４の給電用基板３に実装された端子台４の斜視図である。It is a perspective view of the terminal block 4 mounted on the power supply board 3 of FIG. 図４の給電用基板３に第１コネクタ７及び第２コネクタ８を取り付ける前の状態を示す斜視図である。It is a perspective view which shows the state before attaching the 1st connector 7 and the 2nd connector 8 to the power feeding board 3 of FIG. 図４の給電用基板３に第１コネクタ７及び第２コネクタ８を取り付けた後の状態を示す斜視図である。It is a perspective view which shows the state after the 1st connector 7 and the 2nd connector 8 are attached to the power feeding board 3 of FIG. 図４の第１コネクタ７の斜視図である。It is a perspective view of the 1st connector 7 of FIG. 図４の第２コネクタ８の斜視図である。It is a perspective view of the 2nd connector 8 of FIG. 実施の形態１に係る第１コネクタ７を端子台タブ端子５に接続しようとした場合の模式図である。It is a schematic diagram in the case of trying to connect the 1st connector 7 which concerns on Embodiment 1 to a terminal block tab terminal 5. 実施の形態１に係る端子台４の変形例である端子台４ａの端子台タブ端子５に第１コネクタ７を接続しようとした場合の模式図である。It is a schematic diagram in the case where the 1st connector 7 is tried to connect to the terminal block tab terminal 5 of the terminal block 4a which is a modification of the terminal block 4 which concerns on Embodiment 1. FIG. 実施の形態１に係る第１コネクタ７の変形例である第１コネクタ７ａの斜視図である。It is a perspective view of the 1st connector 7a which is a modification of the 1st connector 7 which concerns on Embodiment 1. FIG. 実施の形態１に係る端子台４の変形例である端子台４ｂの端子台タブ端子５に第１コネクタ７の変形例である第１コネクタ７ａを接続しようとした場合の模式図である。It is a schematic diagram in the case of trying to connect the 1st connector 7a which is the modification of the 1st connector 7 to the terminal block tab terminal 5 of the terminal block 4b which is the modification of the terminal block 4 which concerns on Embodiment 1. FIG. 実施の形態１に係る端子台４の変形例である端子台４ｂの端子台タブ端子５に第１コネクタ７の変形例である第１コネクタ７ａを接続しようとした場合の模式図である。It is a schematic diagram in the case of trying to connect the 1st connector 7a which is the modification of the 1st connector 7 to the terminal block tab terminal 5 of the terminal block 4b which is the modification of the terminal block 4 which concerns on Embodiment 1. FIG.
　以下、図面を参照して、空気調和機の室内機の実施の形態について説明する。なお、図面の形態は一例であり、空気調和機の室内機は、この形態のみに限定されるものではない。また、各図において同一の符号を付したものは、同一のまたはこれに相当するものであり、これは明細書の全文において共通している。さらに、以下の図面では各構成部材の大きさの関係が実際のものとは異なる場合がある。 Hereinafter, an embodiment of an indoor unit of an air conditioner will be described with reference to the drawings. The form of the drawing is an example, and the indoor unit of the air conditioner is not limited to this form. In addition, those having the same reference numerals in the respective figures are the same or equivalent thereof, which are common to the entire text of the specification. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one.
　実施の形態１．
　図１は、実施の形態１に係る空気調和機の室内機１００を示した斜視図である。図２は、実施の形態１に係る空気調和機の室内機１００の内部構造を示した斜視図である。先ず、実施の形態１に係る空気調和機の室内機１００の構造について説明する。 Embodiment 1.
FIG. 1 is a perspective view showing an indoor unit 100 of the air conditioner according to the first embodiment. FIG. 2 is a perspective view showing the internal structure of the indoor unit 100 of the air conditioner according to the first embodiment. First, the structure of the indoor unit 100 of the air conditioner according to the first embodiment will be described.
　図１に示される空気調和機の室内機１００は、例えば部屋の壁等に取り付けられて、室内の空調を行うものであり、図示省略の室外機と冷媒配管で接続されて冷凍サイクルを構成する。室内機１００は、外郭を形成する筐体１０を有している。筐体１０は、壁面に固定された据付板に取り付けられる背面パネル１１と、背面パネル１１に取り付けられる前面パネル１２とで構成されている。背面パネル１１と前面パネル１２とは、意匠パネルとして機能する。なお、図１に示される様に、前面パネル１２は、背面パネル１１のｙ方向に配置されている。以下の説明において、筐体１０のｙ方向側にある面を前面、筐体１０のｙ方向逆向きにある面を背面、筐体１０のｘ方向側にある面を左側面、筐体１０のｘ方向逆向き側にある面を右側面、筐体１０のｚ方向側にある面を上面、筐体１０のｚ方向逆向き側にある面を底面と称する。 The indoor unit 100 of the air conditioner shown in FIG. 1 is attached to, for example, a wall of a room to air-condition the room, and is connected to an outdoor unit (not shown) by a refrigerant pipe to form a refrigeration cycle. .. The indoor unit 100 has a housing 10 that forms an outer shell. The housing 10 is composed of a back panel 11 attached to an installation plate fixed to a wall surface and a front panel 12 attached to the back panel 11. The back panel 11 and the front panel 12 function as design panels. As shown in FIG. 1, the front panel 12 is arranged in the y direction of the back panel 11. In the following description, the surface of the housing 10 on the y-direction side is the front surface, the surface of the housing 10 opposite to the y-direction is the back surface, the surface of the housing 10 on the x-direction side is the left side surface, and the housing 10 The surface on the opposite side in the x direction is referred to as the right side surface, the surface on the z direction side of the housing 10 is referred to as the upper surface, and the surface on the z direction opposite side of the housing 10 is referred to as the bottom surface.
　筐体１０の上面には、室内空気の入り口となる吸込口１３が設けられている。また、筐体１０の下部には、左右方向に延びる吹出口１４が設けられている。吹出口１４には、吹き出し風の上下方向又は左右方向の風向を制御する風向調節板等が設けられている。 A suction port 13 serving as an inlet for indoor air is provided on the upper surface of the housing 10. Further, an air outlet 14 extending in the left-right direction is provided in the lower portion of the housing 10. The air outlet 14 is provided with a wind direction adjusting plate or the like for controlling the wind direction of the blown air in the vertical direction or the horizontal direction.
　図２に示される様に、筐体１０の内部には、熱交換器１５及び電気品箱１が配置されている。熱交換器１５は、長手方向が筐体１０の左右方向に延びるように配置されており、吸込口１３から吹出口１４に到る筐体１０内の風路に配置されている。熱交換器１５は、吸込口１３から取り込まれた室内空気と冷媒との熱交換を行う。筐体１０の内部には図示されていない送風機が設置されており、送風機により熱交換されて温度が調整された空気が吹出口１４から室内に吹き出される。電気品箱１は、筐体１０の長手方向の端部に配置されており、右側面側の端部に位置している。 As shown in FIG. 2, a heat exchanger 15 and an electric component box 1 are arranged inside the housing 10. The heat exchanger 15 is arranged so that the longitudinal direction extends in the left-right direction of the housing 10, and is arranged in the air passage in the housing 10 from the suction port 13 to the air outlet 14. The heat exchanger 15 exchanges heat between the indoor air taken in from the suction port 13 and the refrigerant. A blower (not shown) is installed inside the housing 10, and air whose temperature is adjusted by heat exchange by the blower is blown into the room from the air outlet 14. The electrical component box 1 is arranged at the end portion in the longitudinal direction of the housing 10, and is located at the end portion on the right side surface side.
　図３は、実施の形態１に係る空気調和機の室内機１００の電気品箱１の内部構造を示した説明図である。電気品箱１の内部には、給電用基板３及び電源基板２０が設けられている。給電用基板３と電源基板２０とは、実施の形態１では分割されハーネス３２により接続されている。 FIG. 3 is an explanatory view showing the internal structure of the electrical component box 1 of the indoor unit 100 of the air conditioner according to the first embodiment. A power supply board 3 and a power supply board 20 are provided inside the electrical component box 1. In the first embodiment, the power supply board 3 and the power supply board 20 are divided and connected by a harness 32.
　給電用基板３には、端子台４及び給電用基板３に直接実装されたタブ端子６（図４参照）が設けられている。端子台４にもタブ端子５（図４参照）が設けられている。タブ端子５には第２コネクタ８が接続されており、タブ端子６には第１コネクタ７が接続されている。第１コネクタ７及び第２コネクタ８は、例えば商用電源に接続され、２つに分岐された内部配線の先端に設けられたものである。以下の説明において、タブ端子５を端子台タブ端子５と称し、タブ端子６を基板タブ端子６と称する場合がある。 The power supply board 3 is provided with a terminal block 4 and a tab terminal 6 (see FIG. 4) directly mounted on the power supply board 3. The terminal block 4 is also provided with a tab terminal 5 (see FIG. 4). The second connector 8 is connected to the tab terminal 5, and the first connector 7 is connected to the tab terminal 6. The first connector 7 and the second connector 8 are connected to, for example, a commercial power source and are provided at the tip of the internal wiring branched into two. In the following description, the tab terminal 5 may be referred to as a terminal block tab terminal 5, and the tab terminal 6 may be referred to as a board tab terminal 6.
　図４は、実施の形態１に係る空気調和機の室内機１００の給電用基板３の斜視図である。図５は、図４の給電用基板３に実装された端子台４の斜視図である。図５は、端子台４を図４とは異なる視点から見た斜視図である。図４に示される様に、給電用基板３は、矩形のプリント基板である。給電用基板３上には、端子台４が配置されており、給電用基板３の長辺に沿った方向において隣合うように外部電源用リレー３１が配置されている。給電用基板３の長辺に沿った方向において外部電源用リレー３１の隣には、タブ端子６が給電用基板３上に直接半田付けされている。タブ端子６が実装されている隣の領域には、ハーネス３２、ヒューズ３３、コンデンサ３４、及びバリスタ３５等の実装部品３６が給電用基板３の短辺に沿った方向に並列して配置されている。なお、実施の形態１の給電用基板３に配置されている外部電源用リレー３１及び実装部品３６は一例であり、その他の電子部品又は構造部品に置換することもできる。また、実施の形態１に係る外部電源用リレー３１は、第１実装部品と称される場合がある。 FIG. 4 is a perspective view of the power supply substrate 3 of the indoor unit 100 of the air conditioner according to the first embodiment. FIG. 5 is a perspective view of the terminal block 4 mounted on the power feeding board 3 of FIG. FIG. 5 is a perspective view of the terminal block 4 as viewed from a different viewpoint from that of FIG. As shown in FIG. 4, the power supply substrate 3 is a rectangular printed circuit board. The terminal block 4 is arranged on the power feeding board 3, and the external power supply relays 31 are arranged so as to be adjacent to each other in the direction along the long side of the power feeding board 3. Next to the external power supply relay 31 in the direction along the long side of the power supply board 3, a tab terminal 6 is directly soldered onto the power supply board 3. In the area adjacent to the tab terminal 6 mounted, mounting components 36 such as a harness 32, a fuse 33, a capacitor 34, and a varistor 35 are arranged in parallel in a direction along the short side of the power feeding board 3. There is. The external power supply relay 31 and the mounting component 36 arranged on the power supply board 3 of the first embodiment are examples, and can be replaced with other electronic components or structural components. Further, the external power supply relay 31 according to the first embodiment may be referred to as a first mounting component.
　端子台４には、端子台タブ端子５が設けられている。端子台４は、略直方体形状であり、第２コネクタ８とは異なる形状のコネクタが差し込まれるポート４４が設置されている。端子台タブ端子５は、端子台４において、外部電源用リレー３１が配置されている側に設置されている。端子台４は、給電用基板３の端子台４が配置されている面に対し垂直方向の視点において、外部電源用リレー３１側が切り欠かれて凹形状４０が形成されている。端子台タブ端子５は、端子台４に形成された凹形状４０が有する壁４１、４２、及び４３により三方を囲まれており、外部電源用リレー３１が設置されている側には壁が無く開放されている。壁４１、４２、及び４３は、給電用基板３の端子台４が配置された面に対し交差する方向、更に言うと面に直交する方向に延びている。ただし、外部電源用リレー３１は、端子台４に隣合って給電用基板３上に配置されており、端子台タブ端子５が設けられている端子台４の凹形状４０の開放されている側を塞ぐように配置されている。換言すると、端子台タブ端子５は、壁４１、４２、４３、及び外部電源用リレー３１の側面により四方を囲まれている。 The terminal block 4 is provided with a terminal block tab terminal 5. The terminal block 4 has a substantially rectangular parallelepiped shape, and a port 44 into which a connector having a shape different from that of the second connector 8 is inserted is installed. The terminal block tab terminal 5 is installed on the terminal block 4 on the side where the external power supply relay 31 is arranged. The terminal block 4 has a concave shape 40 formed by cutting out the external power supply relay 31 side from a viewpoint in the direction perpendicular to the surface of the power supply board 3 on which the terminal block 4 is arranged. The terminal block tab terminal 5 is surrounded on three sides by walls 41, 42, and 43 of the concave shape 40 formed on the terminal block 4, and there is no wall on the side where the external power relay 31 is installed. It is open. The walls 41, 42, and 43 extend in a direction intersecting the surface on which the terminal block 4 of the power supply substrate 3 is arranged, more specifically, in a direction orthogonal to the surface. However, the external power supply relay 31 is arranged adjacent to the terminal block 4 on the power supply board 3, and the open side of the concave shape 40 of the terminal block 4 provided with the terminal block tab terminal 5 is provided. It is arranged so as to block. In other words, the terminal block tab terminal 5 is surrounded on all sides by the walls 41, 42, 43, and the side surfaces of the external power relay 31.
　図６は、図４の給電用基板３に第１コネクタ７及び第２コネクタ８を取り付ける前の状態を示す斜視図である。図７は、図４の給電用基板３に第１コネクタ７及び第２コネクタ８を取り付けた後の状態を示す斜視図である。図８は、図６の第１コネクタ７の斜視図である。図９は、図６の第２コネクタ８の斜視図である。第１コネクタ７及び第２コネクタ８は、電源に接続される配線の先端に取り付けられているものであり、図示においては省略されているが、根元部から内部配線が延びている。 FIG. 6 is a perspective view showing a state before attaching the first connector 7 and the second connector 8 to the power supply board 3 of FIG. FIG. 7 is a perspective view showing a state after the first connector 7 and the second connector 8 are attached to the power feeding board 3 of FIG. FIG. 8 is a perspective view of the first connector 7 of FIG. FIG. 9 is a perspective view of the second connector 8 of FIG. The first connector 7 and the second connector 8 are attached to the tip of the wiring connected to the power supply, and although omitted in the drawing, the internal wiring extends from the root portion.
　図６及び図７に示される様に、第１コネクタ７は、給電用基板３の面に垂直方向から基板タブ端子６に取り付けられる。同様に第２コネクタ８は、給電用基板３の面に垂直方向から端子台タブ端子５に取り付けられる。第１コネクタ７及び８は、先端５２側から給電用基板３に押し付けられて、基板タブ端子６及び端子台タブ端子５に取り付けられる。 As shown in FIGS. 6 and 7, the first connector 7 is attached to the board tab terminal 6 from the direction perpendicular to the surface of the power feeding board 3. Similarly, the second connector 8 is attached to the terminal block tab terminal 5 from the direction perpendicular to the surface of the power feeding board 3. The first connectors 7 and 8 are pressed against the power supply board 3 from the tip 52 side and attached to the board tab terminal 6 and the terminal block tab terminal 5.
　また、給電用基板３側に位置する先端５２、即ち第１コネクタ７及び第２コネクタ８の根元部５３とは反対側の端部に、端子台タブ端子５又は基板タブ端子６が差し込まれる挿入口５０が形成されている。タブ端子５及び６は、薄い板状の端子であり、板面方向に広く厚さ方向に薄く成形されている。第１コネクタ７及び第２コネクタ８の先端５２に設けられた挿入口５０は、タブ端子５及び６の板面を図８及び図９に示されるｐ方向に向けたときに、タブ端子５及び６が差し込まれる様に形成されている。挿入口５０は、タブ端子５及び６の板面をｑ方向に向けた場合には、タブ端子５及び６が差し込まれないように形成されている。つまり、挿入口５０は、所定の一方向に幅が狭くなっており、その一方向に直交する方向において幅が広く形成されている。第１コネクタ７及び８は、タブ端子５及び６と向きを合わせた上で接続する必要がある。なお、図６及び図７に示される、ｐ方向とｑ方向とは、第１コネクタ７及び８を給電用基板３に押し付ける方向に対し垂直な面に平行な方向であり、互いに直交する方向である。また、ｒ方向は、第１コネクタ７及び８を給電用基板３に押し付ける方向に一致している。 Further, the terminal block tab terminal 5 or the board tab terminal 6 is inserted into the tip 52 located on the power supply board 3 side, that is, the end opposite to the root portion 53 of the first connector 7 and the second connector 8. The mouth 50 is formed. The tab terminals 5 and 6 are thin plate-shaped terminals, and are formed wide in the plate surface direction and thin in the thickness direction. The insertion openings 50 provided at the tips 52 of the first connector 7 and the second connector 8 are the tab terminals 5 and the tab terminals 5 and 6 when the plate surfaces of the tab terminals 5 and 6 are directed in the p direction shown in FIGS. 8 and 9. It is formed so that 6 is inserted. The insertion port 50 is formed so that the tab terminals 5 and 6 are not inserted when the plate surfaces of the tab terminals 5 and 6 are directed in the q direction. That is, the insertion port 50 has a narrow width in a predetermined direction and a wide width in a direction orthogonal to the one direction. The first connectors 7 and 8 need to be connected after being oriented with the tab terminals 5 and 6. Note that the p-direction and the q-direction shown in FIGS. 6 and 7 are directions parallel to the plane perpendicular to the direction in which the first connectors 7 and 8 are pressed against the power feeding substrate 3, and are orthogonal to each other. is there. Further, the r direction coincides with the direction in which the first connectors 7 and 8 are pressed against the power feeding board 3.
　第１コネクタ７と第２コネクタ８とは、先端５２の形状及び本体５１の形状は同様に形成されている。しかし、第１コネクタ７は、先端５２から根元部５３側の位置に本体５１から周りに突出するリブ７０が形成されている。リブ７０は、第１コネクタ７を給電用基板３に押し付ける方向に対し直交する方向に、本体５１の全周に亘って設けられている。第１コネクタ７及び第２コネクタ８の本体５１は、直方体形状になっており、直方体の長手方向の一端が先端５２であり、他端が根元部５３となっている。リブ７０は、第１コネクタ７の本体５１の先端５２側に形成されている。一方、第２コネクタ８は、リブ７０は設けられていない。 The shape of the tip 52 and the shape of the main body 51 of the first connector 7 and the second connector 8 are similarly formed. However, the first connector 7 is formed with a rib 70 protruding from the main body 51 at a position on the root portion 53 side from the tip 52. The rib 70 is provided over the entire circumference of the main body 51 in a direction orthogonal to the direction in which the first connector 7 is pressed against the power feeding substrate 3. The main body 51 of the first connector 7 and the second connector 8 has a rectangular parallelepiped shape, and one end of the rectangular parallelepiped in the longitudinal direction is the tip 52 and the other end is the root portion 53. The rib 70 is formed on the tip 52 side of the main body 51 of the first connector 7. On the other hand, the second connector 8 is not provided with the rib 70.
　図７に示される様に、第１コネクタ７が基板タブ端子６に接続されている状態においては、リブ７０と周囲の実装部品３６及び外部電源用リレー３１とは互いに接触しないような寸法関係になっている。つまり、第１コネクタ７の挿入口５０の中心からリブ７０の先端までの距離ｗ１は、基板タブ端子６の中心から周囲の実装部品３６までの距離ｈ１よりも小さくなっている。なお、距離ｗ１は、挿入口５０の長手方向に対し垂直方向の距離であって、第１コネクタ７を給電用基板３に押し付ける方向に投影したときのリブ７０の先端から挿入口５０の中心までの距離である。また、距離ｈ１は、給電用基板３上の部品が設置されている面に沿った方向の距離であり、基板タブ端子６の中心からの距離である。 As shown in FIG. 7, when the first connector 7 is connected to the board tab terminal 6, the rib 70, the surrounding mounting component 36, and the external power relay 31 are not in contact with each other. It has become. That is, the distance w1 from the center of the insertion port 50 of the first connector 7 to the tip of the rib 70 is smaller than the distance h1 from the center of the board tab terminal 6 to the surrounding mounting component 36. The distance w1 is a distance perpendicular to the longitudinal direction of the insertion port 50, from the tip of the rib 70 to the center of the insertion port 50 when the first connector 7 is projected in the direction of pressing against the power supply substrate 3. Is the distance. Further, the distance h1 is a distance in the direction along the surface on the power feeding board 3 on which the components are installed, and is a distance from the center of the board tab terminal 6.
　また、基板タブ端子６の周囲の実装部品３６及び外部電源用リレー３１は、基板タブ端子６の幅広面に沿った方向において、距離ｈ２だけ離れて配置されている。距離ｈ２は、第１コネクタ７のリブ７０の先端の幅ｗ２よりも大きく設定されている。また、基板タブ端子６の中心から外部電源用リレー３１又は実装部品３６までの距離ｈ３は、第１コネクタ７の中心線からリブ７０の先端までの距離ｗ３よりも大きく設定されている。このように構成されることにより、第１コネクタ７は、リブ７０を備えていても周辺部品に阻害されることなく基板タブ端子６に接続することができる。また、第１コネクタ７は、リブ７０を備えることにより、組み立て作業者の視覚及び触覚により判別が容易である。従って、組み立て作業者が第１コネクタ７を他のタブ端子５に誤接続するのを抑制することができる。 Further, the mounting component 36 around the board tab terminal 6 and the external power supply relay 31 are arranged apart by a distance h2 in the direction along the wide surface of the board tab terminal 6. The distance h2 is set to be larger than the width w2 at the tip of the rib 70 of the first connector 7. Further, the distance h3 from the center of the board tab terminal 6 to the external power supply relay 31 or the mounting component 36 is set to be larger than the distance w3 from the center line of the first connector 7 to the tip of the rib 70. With this configuration, the first connector 7 can be connected to the board tab terminal 6 without being hindered by peripheral components even if the rib 70 is provided. Further, since the first connector 7 is provided with the rib 70, it can be easily identified by the visual and tactile senses of the assembling worker. Therefore, it is possible to prevent the assembly worker from erroneously connecting the first connector 7 to the other tab terminals 5.
　図８に示される様に、端子台タブ端子５に接続される第２コネクタ８は、第１コネクタ７からリブ７０を除去した形状になっている。端子台４は、端子台タブ端子５の周囲を壁４１、４２、及び４３で囲む様に形成されている。端子台タブ端子５の中心から周囲の壁４１、４２、及び４３までの距離ｈ４は、第２コネクタ８の中心から第２コネクタ８の本体５１の外周面までの距離ｗ４よりも大きく設定されている。従って、第２コネクタ８は、端子台４に設けられた端子台タブ端子５に接続することができる。 As shown in FIG. 8, the second connector 8 connected to the terminal block tab terminal 5 has a shape in which the rib 70 is removed from the first connector 7. The terminal block 4 is formed so as to surround the terminal block tab terminal 5 with walls 41, 42, and 43. The distance h4 from the center of the terminal block tab terminal 5 to the surrounding walls 41, 42, and 43 is set to be larger than the distance w4 from the center of the second connector 8 to the outer peripheral surface of the main body 51 of the second connector 8. There is. Therefore, the second connector 8 can be connected to the terminal block tab terminal 5 provided on the terminal block 4.
　ただし、第１コネクタ７は、端子台４の端子台タブ端子５に接続出来ない構造になっている。つまり、第１コネクタ７の中心からリブ７０の先端までの距離ｗ１及びｗ３は、上述の端子台タブ端子５の中心から周囲の壁４１、４２、及び４３までの距離ｈ４よりも大きく設定されている。従って、第１コネクタ７を端子台タブ端子５に接続しようとした場合、リブ７０が端子台４の上面に引っ掛かり、第１コネクタ７は、端子台４の凹形状４０に差し込むことができない。このように構成されていることにより、第１コネクタ７を誤ったタブ端子である端子台タブ端子５に接続するのを防止できる。また、実施の形態１の給電用基板３には、２つの誤接続を発生しやすい第１コネクタ７及び第２コネクタ８が取り付けられる。上記の構成により、一方の第１コネクタ７の誤接続が発生しないため、他方の第２コネクタ８も誤接続が発生することがない。 However, the first connector 7 has a structure that cannot be connected to the terminal block tab terminal 5 of the terminal block 4. That is, the distances w1 and w3 from the center of the first connector 7 to the tip of the rib 70 are set to be larger than the distance h4 from the center of the terminal block tab terminal 5 to the surrounding walls 41, 42, and 43. There is. Therefore, when the first connector 7 is to be connected to the terminal block tab terminal 5, the rib 70 is caught on the upper surface of the terminal block 4, and the first connector 7 cannot be inserted into the concave shape 40 of the terminal block 4. With such a configuration, it is possible to prevent the first connector 7 from being connected to the terminal block tab terminal 5, which is an erroneous tab terminal. Further, the first connector 7 and the second connector 8 which are liable to cause two erroneous connections are attached to the power feeding board 3 of the first embodiment. With the above configuration, since erroneous connection of one first connector 7 does not occur, erroneous connection of the other second connector 8 does not occur either.
　図１０は、実施の形態１に係る第１コネクタ７を端子台タブ端子５に接続しようとした場合の模式図である。図１０は、給電用基板３の端子台４が設置されている面に対し垂直方向から見た状態を示している。実施の形態１においては、第１コネクタ７のリブ７０が端子台４の上面と接触するように第１コネクタ７及び端子台４が形成されているため、第１コネクタ７は、端子台４に形成された凹形状４０に挿入することができない。図１０に示されるように、第１コネクタ７の挿入口５０の中心及び端子台タブ端子５の中心は、点Ｃである。点Ｃからリブ７０の先端までの距離ｗ１と点Ｃから壁４１までの距離ｈ４は、ｗ１＞ｈ４となっている。なお、図１０においては、点Ｃから壁４１までの距離ｈ４と点Ｃから第１コネクタ７のリブ７０の先端までの距離ｗ１とを比較して表示しているが、点Ｃから壁４２、壁４３、又は外部電源用リレー３１までの距離を距離ｈ４とした時も同様にｗ１＞ｈ４又はｗ３＞ｈ４が成り立つ。 FIG. 10 is a schematic view when the first connector 7 according to the first embodiment is to be connected to the terminal block tab terminal 5. FIG. 10 shows a state of the power feeding board 3 viewed from a direction perpendicular to the surface on which the terminal block 4 is installed. In the first embodiment, since the first connector 7 and the terminal block 4 are formed so that the rib 70 of the first connector 7 comes into contact with the upper surface of the terminal block 4, the first connector 7 is attached to the terminal block 4. It cannot be inserted into the formed concave shape 40. As shown in FIG. 10, the center of the insertion port 50 of the first connector 7 and the center of the terminal block tab terminal 5 are points C. The distance w1 from the point C to the tip of the rib 70 and the distance h4 from the point C to the wall 41 are w1> h4. In FIG. 10, the distance h4 from the point C to the wall 41 and the distance w1 from the point C to the tip of the rib 70 of the first connector 7 are compared and displayed. Similarly, when the distance to the wall 43 or the external power supply relay 31 is set to the distance h4, w1> h4 or w3> h4 holds.
　図１１は、実施の形態１に係る端子台４の変形例である端子台４ａの端子台タブ端子５に第１コネクタ７を接続しようとした場合の模式図である。端子台４ａは、端子台４の壁４１及び４３を削除した形状である。このように端子台タブ端子５の周囲の壁は、少なくとも一方に設けられていれば第１コネクタ７は、端子台タブ端子５に接続することができない。リブ７０を有する第１コネクタ７によれば、端子台４ａが端子台タブ端子５の周囲の少なくとも一方に端子台タブ端子５の中心である点Ｃから距離ｈ４の壁４２を有することにより、第１コネクタ７の誤接続を防止することができる。このとき、第１コネクタ７ａの挿入口５０の中心である点Ｃからリブ７０の先端までの距離ｗ３と点Ｃから壁４２までの距離ｈ４とは、ｗ３＞ｈ４の関係が成り立つ。 FIG. 11 is a schematic view when the first connector 7 is to be connected to the terminal block tab terminal 5 of the terminal block 4a, which is a modification of the terminal block 4 according to the first embodiment. The terminal block 4a has a shape in which the walls 41 and 43 of the terminal block 4 are removed. As described above, if the wall around the terminal block tab terminal 5 is provided on at least one side, the first connector 7 cannot be connected to the terminal block tab terminal 5. According to the first connector 7 having the rib 70, the terminal block 4a has a wall 42 at a distance h4 from the point C which is the center of the terminal block tab terminal 5 on at least one of the periphery of the terminal block tab terminal 5. It is possible to prevent erroneous connection of 1 connector 7. At this time, the relationship w3> h4 is established between the distance w3 from the point C, which is the center of the insertion port 50 of the first connector 7a, to the tip of the rib 70 and the distance h4 from the point C to the wall 42.
　図１２は、実施の形態１に係る第１コネクタ７の変形例である第１コネクタ７ａの斜視図である。第１コネクタ７ａは、リブ７１を対向する２方向にのみ突出させたものである。第１コネクタ７のリブ７０は、本体５１の全周に亘って突出しているが、２方向のみでも第１コネクタ７の誤接続を防止することができる。 FIG. 12 is a perspective view of the first connector 7a, which is a modified example of the first connector 7 according to the first embodiment. The first connector 7a is such that the rib 71 is projected only in two opposite directions. Although the rib 70 of the first connector 7 projects over the entire circumference of the main body 51, it is possible to prevent erroneous connection of the first connector 7 only in two directions.
　図１３は、実施の形態１に係る端子台４の変形例である端子台４ｂの端子台タブ端子５に第１コネクタ７の変形例である第１コネクタ７ａを接続しようとした場合の模式図である。変形例の第１コネクタ７ａは、挿入口５０の長手方向に対し垂直方向の２方向に突出するリブ７１を備える。一方、端子台４ｂは、端子台タブ端子５の板面に対し垂直方向に位置する壁４１が端子台タブ端子５の中心から距離ｈ４の位置に設置されている。このように端子台タブ端子５の周囲の一方向のみに端子台タブ端子５の中心から距離ｈ４の位置に壁が設置されている場合であっても、第１コネクタ７ａは端子台タブ端子５と接続することができない。従って、第１コネクタ７ａの誤接続が防止できる。なお、第１コネクタ７ａは、対向する２方向にリブ７１が突出しているため、点Ｃを中心に１８０°回転させた状態でも端子台タブ端子５と接続することができない。また、第１コネクタ７ａは、点Ｃを中心に９０°回転させた状態でも挿入口５０に端子台タブ端子５が挿入出来ない構成であるため、端子台タブ端子５と接続することができない。 FIG. 13 is a schematic view of a case where the first connector 7a, which is a modified example of the first connector 7, is connected to the terminal block tab terminal 5 of the terminal block 4b, which is a modified example of the terminal block 4 according to the first embodiment. Is. The first connector 7a of the modified example includes a rib 71 projecting in two directions perpendicular to the longitudinal direction of the insertion port 50. On the other hand, in the terminal block 4b, a wall 41 located in the direction perpendicular to the plate surface of the terminal block tab terminal 5 is installed at a distance h4 from the center of the terminal block tab terminal 5. In this way, even if the wall is installed at a distance h4 from the center of the terminal block tab terminal 5 in only one direction around the terminal block tab terminal 5, the first connector 7a is the terminal block tab terminal 5. Cannot connect with. Therefore, erroneous connection of the first connector 7a can be prevented. Since the ribs 71 of the first connector 7a project in two opposite directions, the first connector 7a cannot be connected to the terminal block tab terminal 5 even when rotated by 180 ° about the point C. Further, since the first connector 7a has a configuration in which the terminal block tab terminal 5 cannot be inserted into the insertion port 50 even when it is rotated by 90 ° about the point C, it cannot be connected to the terminal block tab terminal 5.
　図１４は、実施の形態１に係る端子台４の変形例である端子台４ｂの端子台タブ端子５に第１コネクタ７の変形例である第１コネクタ７ｂを接続しようとした場合の模式図である。変形例の第１コネクタ７ｂは、第１コネクタ７ａに対し直交する方向にリブ７１を設けている。つまり、第１コネクタ７ｂは、挿入口５０の長手方向の２方向に突出するリブ７１を備える。そして、端子台４ａは、端子台タブ端子５の幅方向の一方向に距離ｈ４の位置に壁４２を備える。このように端子台タブ端子５の周囲の一方向のみに距離ｈ４の位置に壁が設置されている場合であっても、第１コネクタ７ｂは端子台タブ端子５と接続することができない。従って、第１コネクタ７ｂの誤接続が防止できる。 FIG. 14 is a schematic view of a case where the first connector 7b, which is a modification of the first connector 7, is connected to the terminal block tab terminal 5 of the terminal block 4b, which is a modification of the terminal block 4 according to the first embodiment. Is. The first connector 7b of the modified example is provided with a rib 71 in a direction orthogonal to the first connector 7a. That is, the first connector 7b includes ribs 71 that project in two directions in the longitudinal direction of the insertion port 50. The terminal block 4a is provided with a wall 42 at a position of a distance h4 in one direction in the width direction of the terminal block tab terminal 5. As described above, even when the wall is installed at the position of the distance h4 in only one direction around the terminal block tab terminal 5, the first connector 7b cannot be connected to the terminal block tab terminal 5. Therefore, erroneous connection of the first connector 7b can be prevented.
　図１３及び図１４に示される様に、端子台タブ端子５に対し壁が設置されている方向と、第１コネクタ７ａ及び７ｂの挿入口５０に対しリブ７１が突出する方向とが一致していれば、第１コネクタ７ａ及び第１コネクタ７ｂは、端子台タブ端子５への誤接続が防止できる。このとき、第１コネクタ７ａ及び第１コネクタ７ｂは、少なくとも対向する２方向にリブ７１を突出させている。 As shown in FIGS. 13 and 14, the direction in which the wall is installed with respect to the terminal block tab terminal 5 and the direction in which the rib 71 protrudes with respect to the insertion openings 50 of the first connectors 7a and 7b coincide with each other. Therefore, the first connector 7a and the first connector 7b can be prevented from being erroneously connected to the terminal block tab terminal 5. At this time, the first connector 7a and the first connector 7b project the ribs 71 in at least two opposite directions.
　以上に実施の形態について説明したが、図示した空気調和機の室内機１００の構成は、一例であって、上述した内容のみに限定されるものではなく、例えば他の構成要素を含んだ空気調和機の室内機１００であっても同様に実施することができる。また、第１コネクタ７、７ａ、及び７ｂの形状は、リブ７０、７１と端子台４、４ａ、４ｂとが接触して端子台タブ端子５への接続を阻害できるのであれば、適宜形状を変更することができる。要するに、いわゆる当業者が必要に応じてなす種々なる変更、応用、利用の範囲をも実施の形態の技術的範囲に含むことを念のため申し添える。 Although the embodiment has been described above, the configuration of the indoor unit 100 of the illustrated air conditioner is an example and is not limited to the above-mentioned contents. For example, air conditioning including other components. The same can be performed for the indoor unit 100 of the machine. Further, the shapes of the first connectors 7, 7a, and 7b are appropriately shaped as long as the ribs 70, 71 and the terminal blocks 4, 4a, 4b can come into contact with each other to hinder the connection to the terminal block tab terminal 5. Can be changed. In short, I would like to add that the technical scope of the embodiment also includes the scope of various changes, applications, and uses made by those skilled in the art as necessary.
　１　電気品箱、３　給電用基板、４　端子台、４ａ　端子台、４ｂ　端子台、５　端子台タブ端子、６　基板タブ端子、７　第１コネクタ、７ａ　第１コネクタ、７ｂ　第１コネクタ、８　第２コネクタ、１０　筐体、１１　背面パネル、１２　前面パネル、１３　吸込口、１４　吹出口、１５　熱交換器、２０　電源基板、３１　外部電源用リレー、３２　ハーネス、３３　ヒューズ、３４　コンデンサ、３５　バリスタ、３６　実装部品、４０　凹形状、４１　壁、４２　壁、４３　壁、４４　ポート、５０　挿入口、５１　本体、５２　先端、５３　根元部、７０　リブ、７１　リブ、１００　室内機、ｈ１　距離、ｈ２　距離、ｈ３　距離、ｈ４　距離、ｗ１　距離、ｗ３　距離、ｗ４　距離。 1 Electrical equipment box, 3 Power supply board, 4 Terminal block, 4a terminal block, 4b terminal block, 5 Terminal block tab terminal, 6 Board tab terminal, 7 1st connector, 7a 1st connector, 7b 1st connector, 8th 2 connectors, 10 housings, 11 rear panels, 12 front panels, 13 suction ports, 14 outlets, 15 heat exchangers, 20 power supply boards, 31 external power supply relays, 32 harnesses, 33 fuses, 34 capacitors, 35 varistor, 36 mounting parts, 40 concave shape, 41 wall, 42 wall, 43 wall, 44 port, 50 insertion port, 51 main body, 52 tip, 53 root, 70 rib, 71 rib, 100 indoor unit, h1 distance, h2 distance, h3 distance, h4 distance, w1 distance, w3 distance, w4 distance.

Claims (4)

  1. 　筐体の内部に配置される電気品箱と、
    　前記電気品箱の内部に配置される給電用基板と、
    　前記給電用基板の上に配置された基板タブ端子と、
    　前記給電用基板の上に配置された端子台と、
    　前記端子台の上に実装された端子台タブ端子と、
    　電源に接続され、前記基板タブ端子及び前記端子台タブ端子が挿入される挿入口を有する第１コネクタ及び第２コネクタと、を備え、
    　前記第１コネクタは、
    　前記基板タブ端子に接続され、
    　前記第２コネクタは、
    　前記端子台タブ端子に接続され、
    　前記端子台タブ端子の周囲は、
    　前記給電用基板の前記端子台が配置された面に対し交差する方向に延びる壁が配置され、
    　前記第１コネクタは、
    　前記基板タブ端子が挿入される方向に対して垂直方向の少なくとも２方向に突出するリブが形成され、
    　前記第１コネクタの前記挿入口の中心から前記リブの先端までの寸法は、
    　前記端子台タブ端子から前記壁の間の距離よりも大きい、空気調和機の室内機。     An electrical box placed inside the housing and
    A power supply board arranged inside the electrical component box and
    The board tab terminal arranged on the power supply board and
    The terminal block arranged on the power supply board and
    The terminal block tab terminal mounted on the terminal block and
    It is provided with a first connector and a second connector which are connected to a power source and have an insertion port into which the board tab terminal and the terminal block tab terminal are inserted.
    The first connector is
    Connected to the board tab terminal
    The second connector is
    Connected to the terminal block tab terminal,
    The circumference of the terminal block tab terminal is
    A wall extending in a direction intersecting the surface on which the terminal block of the power feeding board is arranged is arranged.
    The first connector is
    Ribs projecting in at least two directions perpendicular to the direction in which the board tab terminals are inserted are formed.
    The dimension from the center of the insertion port of the first connector to the tip of the rib is
    An indoor unit of an air conditioner that is larger than the distance between the terminal block tab terminal and the wall.
  2. 　前記給電用基板は、
    　前記基板タブ端子に隣合い当該給電用基板の上に配置される実装部品を備え、
    　前記基板タブ端子の中心から前記実装部品までの距離は、
    　前記端子台タブ端子の中心から前記壁のそれぞれまでの距離よりも遠い、請求項１に記載の空気調和機の室内機。     The power supply board
    A mounting component is provided adjacent to the board tab terminal and arranged on the power supply board.
    The distance from the center of the board tab terminal to the mounting component is
    The indoor unit of the air conditioner according to claim 1, which is farther than the distance from the center of the terminal block tab terminal to each of the walls.
  3. 　前記壁は、
    　前記端子台に形成される、請求項１又は２に記載の空気調和機の室内機。     The wall
    The indoor unit of the air conditioner according to claim 1 or 2, which is formed on the terminal block.
  4. 　前記端子台に隣合って配置される第１実装部品を備え、
    　前記壁は、
    　前記第１実装部品により構成される、請求項１～３の何れか１項に記載の空気調和機の室内機。     It is equipped with a first mounting component that is placed next to the terminal block.
    The wall
    The indoor unit of the air conditioner according to any one of claims 1 to 3, which is composed of the first mounting component.
PCT/JP2019/015275 2019-04-08 2019-04-08 Indoor unit for air conditioner WO2020208673A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0613171A (en) * 1992-06-25 1994-01-21 Matsushita Electric Ind Co Ltd High frequency heating device
JPH10294149A (en) * 1997-03-26 1998-11-04 Samsung Electron Co Ltd Microwave oven
JPH11225416A (en) * 1998-02-05 1999-08-17 Sumitomo Wiring Syst Ltd Structure for preventing mis-insertion of connector into electric junction box
JP2002075542A (en) * 2000-09-01 2002-03-15 Fci Japan Kk Polarity plug-in connector
JP2007120818A (en) * 2005-10-26 2007-05-17 Mitsubishi Electric Corp Air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0613171A (en) * 1992-06-25 1994-01-21 Matsushita Electric Ind Co Ltd High frequency heating device
JPH10294149A (en) * 1997-03-26 1998-11-04 Samsung Electron Co Ltd Microwave oven
JPH11225416A (en) * 1998-02-05 1999-08-17 Sumitomo Wiring Syst Ltd Structure for preventing mis-insertion of connector into electric junction box
JP2002075542A (en) * 2000-09-01 2002-03-15 Fci Japan Kk Polarity plug-in connector
JP2007120818A (en) * 2005-10-26 2007-05-17 Mitsubishi Electric Corp Air conditioner

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