Electric appliance junction box and air conditioner indoor unit with same

Abstract

The utility model provides an electric appliance junction box and an air conditioner indoor unit with the same. The electric appliance junction box comprises a computer board box, a first wire fixing board and a second wire fixing board. A mounting cavity with a forward opening is defined by the computer board box. The first wire fixing plate is arranged on the front side of the computer board box; the first wire fixing plate comprises a first bottom plate part which shields the opening of the mounting cavity, and a first side plate part which is formed by forwards extending from the edge of the first bottom plate part; the first bottom plate part and the first side plate part are respectively provided with an opening. The second wire fixing plate is arranged on the front side of the first wire fixing plate; the second wire fixing plate comprises a second bottom plate part corresponding to the first side plate part in shape, and the second bottom plate part is provided with an opening. According to the electric appliance junction box, the second wire fixing plate is used for separation, so that strong current and weak current can be separated when a power line, a connecting line and a weak wire enter the electric appliance junction box.

Description

Technical Field

[0001] The utility model relates to the field of household appliances, in particular to an electrical wiring box and an indoor unit of an air conditioner having the same. Background Art

[0002] Air conditioners generally include an indoor unit part and an outdoor unit part. Among them, the indoor unit part is connected to an indoor socket through a power cord with a three-phase plug to obtain power supply. The outdoor unit is usually connected to the indoor unit through an on-line cable to obtain power supply, rather than being separately connected to the indoor socket through a power cord with a three-phase plug to obtain power supply. Therefore, an electrical wiring box is generally provided in the indoor unit part, and the electrical wiring box is connected to the power cord with a three-phase plug, the on-line cable connecting the outdoor unit part, and the weak current cable connecting to the functional module including the display module at the same time.

[0003] However, since the existing indoor units of air conditioners generally bundle the cables connected to the electrical wiring box together for connection, lacking the separation setting of strong and weak currents, potential safety hazards may be brought, and the operation difficulty of wiring and maintenance is also increased. Summary of the Utility Model

[0004] An object of one aspect of the present utility model is to provide an electrical wiring box capable of separating strong and weak currents.

[0005] A further object of one aspect of the present utility model is to improve the wiring convenience of the electrical wiring box.

[0006] Another object of the present utility model is to provide an indoor unit system of an air conditioner that solves the above problems.

[0007] According to one aspect of the present utility model, the present utility model provides an electrical wiring box, which includes: a computer board box, a first wire fixing board, and a second wire fixing board.

[0008] The computer board box defines an installation cavity with a forward opening.

[0009] The first wire fixing board is arranged on the front side of the computer board box; the first wire fixing board includes a first bottom plate part for blocking the opening of the installation cavity, and a first side plate part extending forward from the edge of the first bottom plate part; the first bottom plate part and the first side plate part are respectively provided with openings for communicating the outside of the electrical wiring box with the inside of the computer board box through the openings on the first side plate part and the first bottom plate part.

[0010] The second wire fixing board is arranged on the front side of the first wire fixing board; the second wire fixing board includes a second bottom plate part corresponding to the shape of the first side plate part, and the second bottom plate part is provided with an opening for communicating the outside of the electrical wiring box with the inside of the computer board box through the openings on the second bottom plate part and the first bottom plate part.

[0011] Optionally, the space jointly defined by the first bottom plate portion, the first side plate portion, and the second bottom plate portion includes a power wiring area and a weak current wiring area spaced apart from each other.

[0012] The openings on the first bottom plate portion include power wire through holes on one side of the power wiring area and weak current wire through holes on one side of the weak current wiring area.

[0013] The opening on the first side plate portion is located on one side of the power wiring area, and the opening on the second bottom plate portion is located on one side of the weak current wiring area.

[0014] Optionally, the electrical junction box further includes: a terminal block.

[0015] The terminal block is arranged on the first bottom plate portion and is used to divide the space jointly defined by the first bottom plate portion, the first side plate portion, and the second bottom plate portion into a power wiring area and a weak current wiring area.

[0016] The terminal block includes at least two pairs of wiring terminals, and each pair of wiring terminals respectively includes a first terminal and a second terminal.

[0017] For each pair of wiring terminals, the first terminal is located on one side of the power wiring area, and the second terminal of each pair of wiring terminals is located on one side of the weak current wiring area.

[0018] Optionally, the opening on the first side plate portion faces each first terminal on the terminal block.

[0019] Optionally, a wire pressing clip is arranged on the first wire fixing plate. The wire pressing clip is arranged at a position close to the opening of the first side plate portion and is used to fix the cable; the power wire through hole is located between the terminal block and the wire pressing clip.

[0020] A first wire clamping clip is further arranged on the first wire fixing plate. The first wire clamping clip is arranged in the weak current wiring area and is used to fix the cable; the weak current wire through hole is located between the terminal block and the first wire clamping clip.

[0021] Optionally, the electrical junction box further includes: a grounding gasket.

[0022] The grounding gasket is arranged on the first bottom plate portion and is located in the weak current wiring area.

[0023] There is a wire threading gap between the terminal block and the first side plate portion; the grounding gasket is arranged close to the wire threading gap.

[0024] Optionally, a separating rib protruding forward is formed between the weak current wire through hole and the grounding gasket on the first bottom plate portion, and the height of the separating rib protruding forward is greater than the thickness of the grounding gasket in the front-back direction.

[0025] Optionally, the second wire-fixing plate further includes a second side plate portion formed by extending forward from the edge of the second bottom plate portion; an opening is provided on the second side plate portion for communicating the outside of the electrical junction box with the inside of the computer board box through the openings on the second side plate portion, the second bottom plate portion, and the first bottom plate portion.

[0026] The electrical junction box further includes: a box cover.

[0027] The box cover is arranged on the front side of the second wire-fixing plate and corresponds to the shape of the second side plate portion.

[0028] Optionally, a second wire clamping clip is provided on the second bottom plate portion for fixing the cable; the second wire clamping clip is located between the opening on the second side plate portion and the opening on the second bottom plate portion.

[0029] Optionally, at least one fixing post is further provided on the second bottom plate portion, and the at least one fixing post is located between the opening on the second side plate portion and the second wire clamping clip or between the second wire clamping clip and the opening on the second bottom plate portion. The rear surface of the box cover abuts against the front end of the fixing post.

[0030] Optionally, the opening on the second side plate portion and the opening on the first side plate portion are relatively positioned in the front-rear direction.

[0031] According to another aspect of the present invention, the present invention provides an indoor unit of an air conditioner. The air conditioner includes a housing and an electrical junction box.

[0032] An air inlet is formed on the front side surface of the housing.

[0033] The electrical junction box is arranged inside the housing, and the front end of the electrical junction box is located at the air inlet; the electrical junction box is any one of the above electrical junction boxes.

[0034] The electrical wiring box of the present utility model includes a computer board box, a first wire fixing plate, and a second wire fixing plate. The computer board box defines an installation cavity with a forward opening. The first wire fixing plate is arranged on the front side of the computer board box; the first wire fixing plate includes a first bottom plate portion that blocks the opening of the installation cavity, and a first side plate portion that extends forward from the edge of the first bottom plate portion; the first bottom plate portion and the first side plate portion are respectively provided with openings for enabling the outside of the electrical wiring box to communicate with the inside of the computer board box through the openings on the first side plate portion and the first bottom plate portion. The second wire fixing plate is arranged on the front side of the first wire fixing plate; the second wire fixing plate includes a second bottom plate portion corresponding to the shape of the first side plate portion, and the second bottom plate portion is provided with an opening for enabling the outside of the electrical wiring box to communicate with the inside of the computer board box through the openings on the second bottom plate portion and the first bottom plate portion. The electrical wiring box of the present utility model is separated by the second wire fixing plate, so that when the power cord, the connection line, and the weak current wire enter the electrical wiring box, the strong current and the weak current can be separated. Among them, the power cord and the connection line can be connected through the opening on the first side plate portion, and the weak current wire can be connected through the opening on the second bottom plate portion. After the strong current and the weak current are connected to the electrical wiring box, they are separated before and after by the second wire fixing plate.

[0035] Furthermore, the electrical wiring box of the present utility model further includes a terminal block arranged on the first bottom plate portion. By using the terminal block, on the one hand, the connection line can be connected to the terminal block without directly connecting to the inside of the computer board box, which improves the wiring convenience. On the other hand, it also separates a strong current wiring area and a weak current wiring area, and cooperates with the first wire clamping clip to make the connection line and the weak current wire also move away from each other when extending into the computer board box from the weak current wire threading hole. The hierarchical design of the computer board box, the first wire fixing plate, the second wire fixing plate, and the box cover protects the cables while reducing the maintenance difficulty.

[0036] Through the following detailed description of some specific embodiments of the present utility model in conjunction with the accompanying drawings, those skilled in the art will become more clear about the above and other purposes, advantages, and features of the present utility model. Description of the Drawings

[0037] Hereinafter, some specific embodiments of the present utility model will be described in detail with reference to the accompanying drawings in an exemplary but not restrictive manner. The same reference numerals in the drawings denote the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the drawings:

[0038] Figure 1 is a schematic diagram of an electrical wiring box according to an embodiment of the present utility model;

[0039] Figure 2 is Figure 1 a schematic exploded view of the shown electrical wiring box;

[0040] Figure 3 is Figure 1A partial schematic diagram of the electrical junction box shown;

[0041] Figure 4 is Figure 1 Another partial schematic diagram of the electrical junction box shown;

[0042] Figure 5 is Figure 1 Yet another partial schematic diagram of the electrical junction box shown;

[0043] Figure 6 It is a schematic diagram of an indoor unit of an air conditioner according to an embodiment of the present invention. Detailed implementation manner

[0044] In the description of this embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0045] The terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include at least one of such features, that is, include one or more of such features.

[0046] In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined. When a certain feature "includes or contains" a certain or certain features it covers, unless otherwise specifically described, this indicates that other features are not excluded and other features may be further included.

[0047] Unless otherwise clearly specified and defined, the terms "install", "connect", "couple", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. Those of ordinary skill in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0048] In addition, in the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0049] That is, in the description of the present utility model, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", or "underneath" the second feature may be the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0050] In the description of the present utility model, descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, devices, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, devices, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0051] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the description of the embodiments of the present utility model have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0052] Figure 1 is a schematic diagram of an electrical wiring box 20 according to an embodiment of the present utility model; Figure 2 is Figure 1 a schematic exploded view of the shown electrical wiring box 20.

[0053] Referring to Figure 1 and Figure 2 as shown, the present utility model provides an electrical wiring box 20, and the electrical wiring box 20 includes: a computer board box 22, a first wire fixing plate 24, and a second wire fixing plate 26.

[0054] The computer board box 22 defines an installation cavity with a forward opening. The first wire fixing board 24 is arranged on the front side of the computer board box 22; the first wire fixing board 24 includes a first bottom board portion 241 that blocks the opening of the installation cavity, and a first side board portion 242 that extends forward from the edge of the first bottom board portion 241; the first bottom board portion 241 and the first side board portion 242 are respectively provided with openings for enabling the outside of the electrical junction box 20 to communicate with the inside of the computer board box 22 through the openings on the first side board portion 242 and the first bottom board portion 241. The second wire fixing board 26 is arranged on the front side of the first wire fixing board 24; the second wire fixing board 26 includes a second bottom board portion 261 corresponding to the shape of the first side board portion 242, and the second bottom board portion 261 is provided with an opening 26A for enabling the outside of the electrical junction box 20 to communicate with the inside of the computer board box 22 through the opening 26A on the second bottom board portion 261 and the first bottom board portion 241.

[0055] The electrical junction box 20 of this embodiment can be used for the indoor unit 10 of an air conditioner. An air conditioner generally includes an indoor unit part and an outdoor unit part. Among them, the indoor unit 10 of the air conditioner is connected to an indoor socket through a power cord 41 with a three-phase plug to obtain power supply. The outdoor unit of the air conditioner is usually connected to the indoor unit through an interconnection wire 42 to obtain power supply, rather than being separately connected to an indoor socket through a power cord with a three-phase plug to obtain power supply. Therefore, the indoor unit 10 of an air conditioner is generally provided with an electrical junction box 20, and is connected to the power cord 41 with a three-phase plug, the interconnection wire 42 connecting the outdoor unit of the air conditioner, and the weak current wire 431 connecting to a function module including a display module through the electrical junction box 20.

[0056] The power cord 41 connecting the indoor unit 10 of the air conditioner and the indoor socket generally includes three branch cables: a neutral wire, a live wire, and a ground wire. The interconnection wire 42 connecting the indoor unit 10 of the air conditioner and the outdoor unit of the air conditioner generally further includes a control wire, that is, four branch cables, on the basis of the neutral wire, the live wire, and the ground wire. In addition, the indoor unit 10 of the air conditioner itself also has one or more weak current wires 431 connecting to function modules such as a display module. For the convenience of storage and management, the existing indoor unit 10 of an air conditioner usually bundles these cables together and connects them to the terminal blocks on the terminal block 34, and then connects to the computer board 32 arranged in the electrical junction box 20 through the paired terminal blocks on the terminal block 34. However, this setting method results in the lack of separation between strong and weak currents in the electrical junction box 20, so it may bring potential safety hazards, and also increases the operation difficulty of wiring and maintenance. At the same time, due to the need for sufficient terminal blocks on the terminal block 34, the size of the electrical junction box 20 is also increased, occupying too much internal space of the indoor unit 10 of the air conditioner.

[0057] In order to simplify the design and reduce the space occupied by the electrical junction box 20, some indoor air conditioner units 10 adopt a design in which the electrical junction box 20 is integrally formed with the casing 12 of the indoor air conditioner unit 10. However, this method greatly increases the maintenance cost of the electrical junction box 20.

[0058] Based on providing an independent electrical junction box 20, in this embodiment, the computer board box 22 for setting the computer board 32 is separated from the front side incoming line and wiring area by the first wire fixing plate 24, and the power line 41, the connection line 42 and the weak current wire 431 are separated from each other by the second wire fixing plate 26, so that the power line 41, the connection line 42 and the weak current wire 431 can be separated between strong and weak currents when entering the electrical junction box 20. Among them, the power line 41 and the connection line 42 can be connected through the opening 24C on the first side plate portion 242, and the weak current wire 431 can be connected through the opening 26A on the second bottom plate portion 261. After the strong and weak currents are connected to the electrical junction box 20, they are separated front and back by the second wire fixing plate 26.

[0059] Figure 3 is Figure 1 A partial schematic diagram of the shown electrical junction box 20; Figure 4 is Figure 1 Another partial schematic diagram of the shown electrical junction box 20.

[0060] In some optional embodiments, the space jointly defined by the first bottom plate portion 241, the first side plate portion 242 and the second bottom plate portion 261 includes a strong current wiring area and a weak current wiring area that are spaced apart. The openings on the first bottom plate portion 241 include a strong current wire passing hole 24A on one side of the strong current wiring area and a weak current wire passing hole 24B on one side of the weak current wiring area. The opening 24C on the first side plate portion 242 is on one side of the strong current wiring area, and the opening 26A on the second bottom plate portion 261 is on one side of the weak current wiring area.

[0061] Figure 3 Only the first wire fixing plate 24 and some spare parts provided on the first wire fixing plate 24 are shown. Figure 4 It shows that the first wire fixing plate 24 is arranged on the computer board box 22, and the power line 41 and the connection line 42 are connected to the electrical junction box 20. Refer to Figure 3 and Figure 4 As shown, the space in the area of the first wire fixing plate 24 of the electrical junction box 20 in this embodiment is divided into a strong current wiring area and a weak current wiring area from left to right. Among them, the first bottom plate portion 241 is provided with a strong current wire passing hole 24A on one side of the strong current wiring area. Since the zero line and the live line of the power line 41 do not need to be temporarily wired when the indoor air conditioner unit 10 is installed in the user's home, they can pass through the strong current wire passing hole 24A and be pre-connected to the computer board 32 before leaving the factory, thus saving two pairs of wiring terminals.

[0062] Meanwhile, a weak-current wire passing hole 24B is further formed in the first bottom plate portion 241 of the electrical junction box 20 of the present embodiment on one side of the weak-current wiring area, and the opening 26A on the second bottom plate portion 261 is located on one side of the weak-current wiring area. Therefore, when the weak-current wire 431 passes through the second wire fixing plate 26 and the first wire fixing plate 24, it is either separated from the power wire 41 by the second wire fixing plate 26 itself or away from the power wire 41, thus better realizing the separation of strong and weak currents.

[0063] In some alternative embodiments, the electrical junction box 20 further includes a terminal block 34.

[0064] The terminal block 34 is arranged on the first bottom plate portion 241 and is used to divide the space jointly defined by the first bottom plate portion 241, the first side plate portion 242 and the second bottom plate portion 261 into a strong-current wiring area and a weak-current wiring area. The terminal block 34 includes at least two pairs of terminal connectors, and each pair of terminal connectors respectively includes a first terminal 341 and a second terminal 342. The first terminal 341 of each pair of terminal connectors is located on one side of the strong-current wiring area, and the second terminal 342 of each pair of terminal connectors is located on one side of the weak-current wiring area.

[0065] Reference Figure 3 and Figure 4 As shown in the figure, in the present embodiment, a terminal block 34 is further arranged on the first bottom plate portion 241, and the space in the area of the second wire fixing plate 26 is divided into a strong-current wiring area and a weak-current wiring area from left to right by the terminal block 34. The terminal block 34 is provided with at least two pairs of terminal connectors, and the first terminal 341 of each pair of terminal connectors is located on one side of the strong-current wiring area, and the second terminal 342 is located on one side of the weak-current wiring area. The second terminal 342 of each pair of terminal connectors on the terminal block 34 can be pre-connected to the computer board 32 through a cable. When the indoor unit 10 of the air conditioner is installed in the user's home, the neutral wire and the live wire of the connection wire 42 are connected to the first terminal 341 of each pair of terminal connectors to complete the connection with the computer board 32, without the need to completely open the electrical junction box 20 and take out the computer board 32 from the computer board box 22. The cable connecting the second terminal 342 of each pair of terminal connectors on the terminal block 34 and the computer board 32 passes through the weak-current wire passing hole 24B to pass through the first bottom plate portion 241.

[0066] In some alternative embodiments, it is preferable that the terminal block 34 is provided with three pairs of terminal connectors. On the basis that two pairs of terminal connectors are respectively connected to the neutral wire and the live wire of the connection wire 42, the first terminal 341 of the third pair of terminal connectors is connected to the control wire of the connection wire 42, and the second terminal 342 is also pre-connected to the computer board 32.

[0067] In some alternative embodiments, the opening 24C on the first side plate portion 242 is directly opposite to each first terminal 341 on the terminal block 34.

[0068] Reference Figure 3As shown, the terminal block 34 of this embodiment divides the space in the area of the second wire fixing plate 26 into a strong electricity wiring area and a weak electricity wiring area from left to right. Therefore, the terminal block 34 is equivalent to being located at the rightmost end of the strong electricity wiring area. In this embodiment, the opening 24C on the first side plate portion 242 is further set to be directly opposite to each first terminal 341 on the terminal. That is to say, on the basis that the opening 24C on the first side plate portion 242 is located on the side of the strong electricity wiring area, the incoming and outgoing direction of the opening 24C is also directly opposite to each first terminal 341. That is, the opening 24C on the first side plate portion 242 is located at the leftmost end of the strong electricity wiring area and is spaced opposite to each first terminal 341 on the terminal block 34 from left to right.

[0069] Reference Figure 4 As shown, the opening 24C on the first side plate portion 242 of this embodiment is set such that the bending arcs of the power cord 41 and the connection line 42 are relatively small after they extend into the electrical wiring box 20, which is more convenient for wiring and maintenance.

[0070] In some alternative embodiments, a wire pressing clip 244 is provided on the first wire fixing plate 24. The wire pressing clip 244 is arranged at a position close to the opening 24C of the first side plate portion 242 and is used to fix the cable. The strong electricity wire passing hole 24A is located between the terminal block 34 and the wire pressing clip 244. A first wire clamping clip 245 is also provided on the first wire fixing plate 24. The first wire clamping clip 245 is arranged in the weak electricity wiring area and is used to fix the cable. The weak electricity wire passing hole 24B is located between the terminal block 34 and the first wire clamping clip 245.

[0071] Reference Figure 4 As shown, the wire pressing clip 244 arranged at a position close to the opening 24C of the first side plate portion 242 is used to fix the power cord 41 and the connection line 42 when they just extend from the opening 24C of the first side plate portion 242. Considering that the power cord 41 and the connection line 42 are relatively thick, the wire pressing clip 244 can be detachably arranged relative to the first wire fixing plate 24. The wire pressing clip 244 can be arranged on the first bottom plate portion 241 or on the first side plate portion 242. To facilitate the connection between the weak electricity wire 431 and the computer board 32, a weak electricity docking wire 432 can be pre-connected on the computer board 32. The weak electricity docking wire 432 is fixed by the first wire clamping clip 245 arranged in the weak electricity wiring area, so as to ensure that the terminals of the weak electricity docking wire 432 will not move to other positions, such as passing through the weak electricity wire passing hole 24B and falling into the computer board box 22.

[0072] In this embodiment, the weak-current wire passing hole 24B is further located between the terminal block 34 and the first wire clamping clip 245. That is to say, the second terminal 342 of the terminal block 34 and the first wire clamping clip 245 are located on opposite sides of the weak-current wire passing hole 24B. The cable connecting the computer board 32 to the second terminal 342 of the terminal block 34 and the weak-current docking wire 432 can be arranged close to the opposite side edges of the weak-current wire passing hole 24B, so as to form a gap in terms of distance.

[0073] In some alternative embodiments, the electrical junction box 20 further includes: a grounding gasket 36. The grounding gasket 36 is arranged on the first bottom plate portion 241 and is located in the weak-current wiring area. There is a wire passing gap between the terminal block 34 and the first side plate portion 242; the grounding gasket 36 is arranged close to the wire passing gap.

[0074] Refer to Figure 3 and Figure 4 As shown, in this embodiment, the grounding gasket 36 is attached to the first bottom plate portion 241. In order to facilitate the connection of the ground wires of the power cord 41 and the connection wire 42 to the grounding gasket 36 respectively, a wire passing gap 24D is specifically reserved between the terminal block 34 and the first side plate portion 242 in this embodiment, so that the two ground wires with the starting ends located in the strong-current wiring area can pass through the wire passing gap 24D and extend into the weak-current wiring area without occupying additional terminal blocks.

[0075] In this embodiment, the number of terminal blocks on the terminal block 34 is reduced to at most three pairs. By reasonably setting the wiring direction of the cables, the size of the electrical junction box 20 is effectively reduced. When it is difficult to reduce the cross-sectional area of the electrical junction box 20 in the horizontal direction due to the fixed size of the computer board 32, the thickness of the electrical junction box 20 is effectively reduced.

[0076] In some alternative embodiments, a separating rib 246 protruding forward is formed between the weak-current wire passing hole 24B and the grounding gasket 36 on the first bottom plate portion 241, and the height of the separating rib 246 protruding forward is greater than the thickness of the grounding gasket 36 in the front-back direction.

[0077] In order to prevent the cable connecting the second terminal 342 of the terminal block 34 or the weak-current docking wire 432 from contacting the grounding gasket 36, in this embodiment, a separating rib 246 protruding forward is further formed between the weak-current wire passing hole 24B and the grounding gasket 36 on the first bottom plate portion 241, and the height of the separating rib 246 protruding forward is greater than the thickness of the grounding gasket 36 in the front-back direction, so that the cable connecting the second terminal 342 of the terminal block 34 or the weak-current docking wire 432 can at most only overlap on the surface of the separating rib 246 and will not contact the grounding gasket 36.

[0078] Figure 5 is Figure 1 Another partial schematic diagram of the electrical junction box 20 shown.

[0079] In some alternative embodiments, the second wire fixing plate 26 further includes a second side plate portion 262 formed by extending forward from the edge of the second bottom plate portion 261; an opening 26C is provided on the second side plate portion 262 for enabling the exterior of the electrical junction box 20 to communicate with the interior of the computer board box 22 through the openings on the second side plate portion 262, the second bottom plate portion 261, and the first bottom plate portion 241.

[0080] The electrical junction box 20 further includes: a box cover 28. The box cover 28 is disposed on the front side of the second wire fixing plate 26 and corresponds to the shape of the second side plate portion 262.

[0081] Reference Figure 5 As shown, on the basis that the power cord 41 and the connection wire 42 extend into the strong electricity connection area through the opening 24C on the first side plate portion 242, the weak wire 431 of the electrical junction box 20 of this embodiment can also extend into the area of the second wire fixing plate 26 through the opening 26C on the second side plate portion 262, and extend into the weak electricity connection area through the opening 26A on the second bottom plate portion 261, so as to be connected to the weak electricity docking wire 432. Thus, when the second wire fixing plate 26 is not installed and the area of the first wire fixing plate 24 is exposed, only the zero wire, live wire, and control wire located in the strong electricity connection area are connected (the ground wire is not charged under normal circumstances, so the safety risk of accessing the weak electricity connection area is relatively small).

[0082] Meanwhile, referring to Figure 4 and Figure 5 It can be seen that the position of the second bottom plate portion 261 facing the strong electricity connection area and the terminal block 34 in the front-rear direction is a flat plate surface, and the opening 26A is only located at the position facing the weak electricity connection area. After the second wire fixing plate 26 is installed, the strong electricity connection area is completely blocked by the plate body portion of the second bottom plate portion 261. Therefore, on the path where the weak wire 431 passes through the opening 26A on the second bottom plate portion 261 to be connected to the weak electricity docking wire 432, there will be no contact with the cables or the terminal block 34 in the strong electricity connection area.

[0083] The electrical junction box 20 of this embodiment further includes a box cover 28 for covering the front side of the second wire fixing plate 26 after the weak wire 431 is also connected, so that the electrical junction box 20 is in Figure 1 the completely enclosed state as shown.

[0084] The shape of the first bottom plate portion 241 of the first wire fixing plate 24 of the electrical wiring box 20 in this embodiment corresponds to the shape of the opening of the computer board box 22, so as to just cover the opening of the computer board box 22 from the front side. The shape of the second bottom plate portion 261 of the second wire fixing plate 26 corresponds to the shape of the first side plate portion 242 of the first wire fixing plate 24, and the shape of the box cover 28 corresponds to the shape of the second side plate portion 262 of the second wire fixing plate 26, so that the electrical wiring box 20 is connected layer by layer from the back to the front, not only separating the strong and weak electricity, but also reducing the operation difficulty during wiring and maintenance.

[0085] In some alternative embodiments, a second wire clamping clip 264 is provided on the second bottom plate portion 261 for fixing the cable; the second wire clamping clip 264 is located between the opening 26C on the second side plate portion 262 and the opening 26A on the second bottom plate portion 261.

[0086] Reference Figure 5 As shown, the second wire clamping clip 264 is used to fix the weak wire 431. Similar to the first wire clamping clip 245, it can be integrally formed on the surface of the second bottom plate portion 261.

[0087] In some alternative embodiments, at least one fixing post 265 is further provided on the second bottom plate portion 261. The at least one fixing post 265 is located between the opening 26C on the second side plate portion 262 and the second wire clamping clip 264 or between the second wire clamping clip 264 and the opening 26A on the second bottom plate portion 261. The rear surface of the box cover 28 abuts against the front end of the fixing post 265.

[0088] The fixing post 265 in this embodiment abuts against the rear surface of the box cover 28 to support the box cover 28. At the same time, screw holes can be provided on the fixing post 265 and at the position where the box cover 28 abuts against the fixing post 265 to fasten the box cover 28 and the fixing post 265 by screws.

[0089] Reference Figure 5 As shown, the fixing post 265 in this embodiment is particularly provided between the opening 26C on the second side plate portion 262 and the second wire clamping clip 264, or between the second wire clamping clip 264 and the opening 26A on the second bottom plate portion 261, or can be provided at both positions as shown. The fixing post 265 in this embodiment can cooperate with the second wire clamping clip 264 to play a certain role in clamping and fixing the weak wire 431. Figure 5 As shown, the fixing post 265 in this embodiment can cooperate with the second wire clamping clip 264 to play a certain role in clamping and fixing the weak wire 431.

[0090] In some alternative embodiments, the opening 26C on the second side plate portion 262 and the opening 24C on the first side plate portion 242 are relatively positioned in the front-rear direction.

[0091] Reference Figure 1As shown, in this embodiment, the opening 24C on the first side plate portion 242 and the opening 26C on the second side plate portion 262 are provided on the same side, so that the power cord 41, the connection line 42 and the weak current wire 431 enter from the same side, facilitating the wiring inside the air conditioner indoor unit 10.

[0092] It should be noted that when the quality of the cables is qualified, the strong and weak current wires 431 with intact outer sheaths will not affect each other when they are arranged close to each other. Only at the connection terminals, there may be interference problems or safety risks due to the exposure of the wire cores.

[0093] Figure 6 It is a schematic diagram of the air conditioner indoor unit 10 according to an embodiment of the present invention.

[0094] Reference Figure 6 As shown, the present invention also provides an air conditioner indoor unit 10. The air conditioner includes a housing 12 and an electrical junction box 20. An air inlet is provided on the front side surface of the housing 12. The electrical junction box 20 is arranged inside the housing 12, and the front end of the electrical junction box 20 is located at the air inlet.

[0095] In this embodiment, the air inlet of the air conditioner indoor unit 10 is provided on the front side surface of the housing 12, and the front end of the electrical junction box 20 is correspondingly located at the air inlet. Therefore, the electrical junction box 20 can be conveniently opened and operated from the air inlet position. In order to block the air inlet, the air conditioner indoor unit 10 can further be provided with an air inlet panel 14. The air inlet panel 14 can be in a flat shape and used to open and close the air inlet, or can be provided with air inlet grilles on the surface so that air can enter the air inlet through the air inlet grilles.

[0096] In addition, it can be understood that the descriptions of orientations such as "front and back", "left and right" in the present invention are only for the relative position relationship of the electrical junction box 20 itself. In other words, in some other embodiments, the front end of the electrical junction box 20 can face upward or other directions of the air conditioner indoor unit 10, and does not need to correspond exactly to the orientation of the air conditioner indoor unit 10.

[0097] So far, those skilled in the art should recognize that although many exemplary embodiments of the present invention have been shown and described in detail herein, still, without departing from the spirit and scope of the present invention, many other variations or modifications that conform to the principles of the present invention can be directly determined or derived based on the content disclosed in the present invention. Therefore, the scope of the present invention should be understood and determined to cover all these other variations or modifications.

Claims

1. An electrical junction box, characterized in that Comprising: A computer board box which defines an installation cavity with a forward opening; A first wire fixing board disposed on the front side of the computer board box; The first wire fixing board includes a first bottom plate portion that blocks the opening of the installation cavity, and a first side plate portion extending forward from the edge of the first bottom plate portion; the first bottom plate portion and the first side plate portion are respectively provided with openings for enabling the outside of the electrical junction box to communicate with the inside of the computer board box through the openings on the first side plate portion and the first bottom plate portion; A second wire fixing board disposed on the front side of the first wire fixing board; The second wire fixing board includes a second bottom plate portion corresponding to the shape of the first side plate portion, and the second bottom plate portion is provided with an opening for enabling the outside of the electrical junction box to communicate with the inside of the computer board box through the openings on the second bottom plate portion and the first bottom plate portion.

2. The electrical junction box according to claim 1, wherein The space jointly defined by the first bottom plate portion, the first side plate portion and the second bottom plate portion includes a power wiring area and a weak current wiring area spaced apart from each other; The openings on the first bottom plate portion include a power wire passing hole located on one side of the power wiring area and a weak current wire passing hole located on one side of the weak current wiring area; The opening on the first side plate portion is located on one side of the power wiring area, and the opening on the second bottom plate portion is located on one side of the weak current wiring area.

3. The electrical junction box according to claim 2, wherein Further comprising: A terminal block disposed on the first bottom plate portion for separating the space jointly defined by the first bottom plate portion, the first side plate portion and the second bottom plate portion into the power wiring area and the weak current wiring area; The terminal block includes at least two pairs of wiring terminals, and each pair of the wiring terminals respectively includes a first terminal and a second terminal; The first terminal of each pair of the wiring terminals is located on one side of the power wiring area, and the second terminal of each pair of the wiring terminals is located on one side of the weak current wiring area.

4. The electrical junction box according to claim 3, wherein The opening on the first side plate portion faces each of the first terminals on the terminal block.

5. The electrical junction box according to claim 3, wherein A wire pressing clip is disposed on the first wire fixing board, and the wire pressing clip is disposed at a position close to the opening of the first side plate portion for fixing a cable; the power wire passing hole is located between the terminal block and the wire pressing clip; A first wire clamping clip is further disposed on the first wire fixing board, and the first wire clamping clip is disposed in the weak current wiring area for fixing a cable; the weak current wire passing hole is located between the terminal block and the first wire clamping clip.

6. The electrical junction box according to claim 3, characterized in that Further comprising: A grounding gasket disposed on the first bottom plate portion and located in the weak current wiring area; There is a wire passing gap between the terminal block and the first side plate portion; the grounding gasket is disposed close to the wire passing gap.

7. The electrical junction box according to claim 6, wherein A separating rib protruding forward is formed on the first bottom plate portion between the weak current wire passing hole and the grounding gasket, and the height of the separating rib protruding forward is greater than the thickness of the grounding gasket in the front-rear direction.

8. The electrical wiring box according to claim 1, wherein the second wire fixing plate further includes a second side plate portion extending forward from the edge of the second bottom plate portion; an opening is provided on the second side plate portion for communicating the outside of the electrical wiring box with the inside of the computer board box through the openings on the second side plate portion, the second bottom plate portion, and the first bottom plate portion; the electrical wiring box further includes: a box cover provided on the front side of the second wire fixing plate and corresponding to the shape of the second side plate portion.

9. The electrical wiring box according to claim 8, wherein a second wire clamping clip is provided on the second bottom plate portion for fixing a cable; the second wire clamping clip is located between the opening on the second side plate portion and the opening on the second bottom plate portion.

10. The electrical wiring box according to claim 9, wherein at least one fixing post is further provided on the second bottom plate portion, and at least one of the fixing posts is located between the opening on the second side plate portion and the second wire clamping clip or between the second wire clamping clip and the opening on the second bottom plate portion; the rear surface of the box cover abuts against the front end of the fixing post.

11. The electrical wiring box according to claim 8, wherein the openings on the second side plate portion and the first side plate portion are relatively positioned in the front-rear direction.

12. An indoor unit of an air conditioner, characterized in that including: a housing having an air inlet formed on the front side surface thereof; an electrical wiring box provided inside the housing, and the front end of the electrical wiring box is located at the air inlet; the electrical wiring box is the electrical wiring box according to any one of claims 1 to 11.

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