Air conditioning unit

Abstract

The utility model relates to an air conditioning unit which comprises a fan coil and an electric appliance box, the fan coil comprises a machine shell, and a mounting part is formed on the machine shell; the electric appliance box comprises a box body, a box cover and a control panel, and a mounting inner cavity is formed between the box cover and the box body; the control panel is arranged in the mounting inner cavity; the box body is of a plate-shaped structure, a bent part is formed on one side of the box body, a fastening part is formed on the bent part, and the fastening part is detachably connected with the mounting part; a supporting part is further formed at the bottom of the box body, the box cover is detachably connected to the supporting part, when the electric appliance box is installed, the box body is firstly fixed to a machine shell of the fan coil through the bent part, then the box cover is fixed to the supporting part of the box body, the electric appliance box is fixed to the fan coils of different structural forms, the fixing mode of the electric appliance box is higher in universality, the structure is simple, and the electric appliance box is convenient to use. The assembly is convenient.

Description

Technical Field

[0001] This utility model belongs to the field of air conditioning equipment technology, and in particular relates to an air conditioning unit. Background Technology

[0002] Fan coil units are terminal devices in air conditioning systems, primarily responsible for air circulation and regulating indoor temperature. They use built-in circulating fans and cooling coils to deliver treated air into the room, controlling the indoor temperature by adjusting the airflow and the temperature of the cooling coils.

[0003] Fan coil units include structures such as heat exchangers, fans, motors, and condensate trays. An electrical box is installed on the fan coil unit to regulate its operating status. The installation method of the electrical box varies depending on the structural form of the fan coil unit (e.g., with or without a return air box), requiring the use of auxiliary mounting brackets and other structures. Different installation locations for the electrical box can lead to inconvenience in production and assembly, poor versatility, and significant variations in product line styles. Utility Model Content

[0004] The purpose of this utility model is to provide an air conditioning unit that solves the problems of poor universality of electrical box installation on fan coil units of different models, inconvenient production and assembly, and large variations in product line styles in the existing technology.

[0005] To achieve the above-mentioned objectives, the present invention employs the following technical solution:

[0006] This utility model proposes an air conditioning unit, which includes:

[0007] A fan coil unit, comprising a housing on which a mounting portion is formed;

[0008] An electrical box, connected to the housing, the electrical box comprising:

[0009] The box body is a plate-shaped structure. A bending part is formed on one side of the box body, and a fastening part is formed on the bending part. The fastening part is detachably connected to the mounting part. A support part is also formed at the bottom of the box body. The support part and the bending part are located on the same side of the box body.

[0010] A box lid is detachably connected to the support, and an installation cavity is formed between the box lid and the box body;

[0011] The control panel is located within the mounting cavity.

[0012] In some embodiments of this application, the mounting portion includes a card interface formed on the housing, and the fastening portion includes a snap-fit ​​portion disposed on the bent portion, wherein the snap-fit ​​portion engages with the card interface to achieve a detachable connection between the box body and the housing.

[0013] The bent part is connected to the housing by a snap-fit ​​mechanism, which can achieve the initial connection and positioning between the box and the housing, making it easy to fix.

[0014] In some embodiments of this application, the mounting portion further includes a first fixing hole formed on the housing, and the fastening portion further includes a first mating hole disposed on the bending portion. The first fixing holes are symmetrically disposed on the upper and lower sides of the card interface, and the first mating holes are symmetrically disposed on both sides of the card interface. The first fixing holes are detachably connected to the corresponding first mating holes by fasteners.

[0015] After the bent part is snapped into the housing, fasteners are connected to the corresponding first fixing holes and first mating holes to fix the bent part to the housing. The first fixing holes and first mating holes are respectively set on both sides of the snap-in interface and the snap-in part, which helps to improve the stability of the connection between the bent part and the housing.

[0016] In some embodiments of this application, the top of the box body is formed with a limiting part that extends in the same direction as the bending part, the upper cover plate of the box cover is provided with an upwardly extending positioning part, the limiting part is formed with a positioning opening, and the positioning part is inserted into the positioning opening.

[0017] The positioning part is connected inside the positioning port to achieve the connection and fixation between the top of the box cover and the box body. The installation method is simple and quick, and the assembly efficiency is high.

[0018] In some embodiments of this application, a connecting upright is also formed on the support portion, the connecting upright is arranged parallel to the box body, a second fixing hole is formed on the connecting upright, and a second mating hole corresponding to the fixing hole is formed on the front cover plate of the box cover, the second mating hole is detachably connected to the second fixing hole by a fastener.

[0019] The bottom of the lid is fixed to the connecting stand with fasteners. During installation, first insert the positioning part on the top of the lid into the positioning hole, and then use fasteners to connect and fix the first fixing hole and the second mating hole to achieve the assembly of the lid and the box body.

[0020] In some embodiments of this application, a wiring hole is also provided at the upper position of the box body. The wiring hole has an open structure at the top and is used for the first wire harness connected to the control board to pass through.

[0021] The first wiring harness is specifically connected to the motor on the fan coil unit used to drive the fan rotation. The above-mentioned structure of the wiring hole facilitates the installation of the first wiring harness.

[0022] In some embodiments of this application, a wire fixing member is further provided on the inner surface of the box, and a wire fixing channel is formed in the wire fixing member for providing a limit for the second wire harness connected to the control board.

[0023] The second wiring harness is used to supply power to the electrical box. The wiring fastener limits the position of the second wiring harness in the installation cavity and standardizes the wiring of the harness.

[0024] In some embodiments of this application, the support portion is further provided with a wire-passing portion extending into the mounting cavity, and a wire-passing hole is formed in the wire-passing portion for connecting the second wire bundle from the mounting cavity.

[0025] The second wire harness, which passes through the fixed wire assembly, goes through the wire hole and then exits to the outside of the electrical box.

[0026] In some embodiments of this application, side cover plates are formed on both sides of the box cover, and multiple heat dissipation parts are symmetrically arranged on the two side cover plates. The multiple heat dissipation parts on each side cover plate are spaced apart along the height direction of the side cover plate.

[0027] In some embodiments of this application, each of the heat dissipation portions protrudes outward from the side cover plate, and each of the heat dissipation portions has a heat dissipation hole with its opening facing downward.

[0028] The symmetrical design of the ventilation holes on the two side covers allows airflow to convect within the electrical box, improving heat dissipation. The downward-opening ventilation holes also prevent water from splashing in from the inlet / outlet pipes or vent valve, enhancing the safety of the electrical box.

[0029] In some embodiments of this application, a return air box is further included. A connection hole is formed on the body of the return air box. The connection hole corresponds one-to-one with the first fixing hole. The return air box is fixed between the housing and the bending part through the connection hole.

[0030] In some embodiments of this application, an avoidance cut is also formed on the housing, and the position of the avoidance cut is adapted to the position of the buckle portion.

[0031] The clearance notch is used to provide clearance between the snap-fit ​​part and the snap-fit ​​part, so as to avoid interference between the housing and the snap-fit ​​part.

[0032] Compared with the prior art, the advantages and positive effects of this utility model are:

[0033] The air conditioning unit involved in this application has an electrical box including a box body and a box cover. A bending part is formed on the box body. When installing the electrical box, the box body is first fixed to the casing of the fan coil unit through the bending part, and then the box cover is fixed to the support part of the box body. This fixing method of the electrical box is more versatile, simple in structure and easy to assemble on fan coil units with different structural forms.

[0034] In addition, the connection between the casing and the box body through snap-fit ​​and fasteners helps to improve the stability of the electrical box installation and increase assembly efficiency;

[0035] When a return air box is also installed on the fan coil unit, connection holes are pre-set on the box body. The bending part, the casing and the box body are connected and fixed by fasteners. The avoidance cut can provide avoidance for the bending part and the casing snap-fit ​​position. The electrical box has stronger universality in connecting with different types of fan coil units, and the product line style is unified.

[0036] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a partial structural schematic diagram of an air conditioning unit according to an embodiment;

[0039] Figure 2 According to the embodiments Figure 1 A diagram showing the disassembled electrical box in the image;

[0040] Figure 3 This is a schematic diagram of a fan coil unit structure.

[0041] Figure 4 for Figure 3 Enlarged diagram of point A in the diagram;

[0042] Figure 5 This is a schematic diagram of the electrical box structure according to an embodiment;

[0043] Figure 6 This is an exploded view of the electrical box according to an embodiment;

[0044] Figure 7 This is one of the box structure diagrams according to an embodiment;

[0045] Figure 8 This is a second structural diagram of the box according to an embodiment;

[0046] Figure 9 This is a structural diagram of the box lid according to an embodiment;

[0047] Figure 10 This is a diagram showing the installation of the return air box on the fan coil unit according to an embodiment;

[0048] Figure 11 This is a diagram showing the return air box separated from the fan coil unit.

[0049] Figure label:

[0050] 100. Fan coil unit; 101. Air inlet; 102. Air outlet; 110. Housing; 120. Motor; 130. Fan; 140. Mounting part; 141. Clip interface; 142. First fixing hole;

[0051] 200, return air box; 210, connection hole; 220, clearance cut;

[0052] 300. Electrical box;

[0053] 310. Box body; 311. Bending part; 3111. Snap-on part; 3112. First mating hole; 312. Limiting part; 3121. Positioning port; 313. Support part; 3131. Wire passage part; 314. Connecting upright part; 3141. Second fixing hole; 315. Wire fixing component; 316. Wiring hole; 317. Reinforcing rib;

[0054] 320. Cover; 321. Front cover; 3211. Second mating hole; 322. Top cover; 3221. Positioning part; 323. Side cover; 3231. Heat dissipation part;

[0055] 330. Control panel;

[0056] 400. Water tray. Detailed Implementation

[0057] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0058] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0059] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0060] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0061] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0063] In this application, the air conditioning unit performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation to cool or heat an indoor space.

[0064] Low-temperature, low-pressure refrigerant enters the compressor, which compresses it into a high-temperature, high-pressure refrigerant gas and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0065] The expansion valve expands the high-temperature, high-pressure liquid refrigerant that condenses in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve, returning the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the air conditioning unit regulates the temperature of the indoor space.

[0066] The outdoor unit of an air conditioning unit refers to the part of the refrigeration cycle that includes the compressor and the outdoor heat exchanger. The indoor unit of an air conditioning unit includes the indoor heat exchanger, and the expansion valve can be provided in either the indoor or outdoor unit.

[0067] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioning unit functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioning unit functions as a cooler in cooling mode.

[0068] refer to Figures 1-3 This utility model proposes an air conditioning unit, which includes a fan coil unit 100 and an electrical box 300. The fan coil unit 100 includes a housing 110, a fan 130, a motor 120, a filter, and a heat exchanger, etc. The electrical box 300 is installed on the outside of the housing 110 of the fan coil unit 100. The electrical box 300 is connected to the motor 120 through a first wiring harness and to an external power supply component through a second wiring harness.

[0069] The end side of the housing 110 is provided with an air inlet 101 and an air outlet 102 for connecting to external air inlet and air outlet pipes. The fan coil unit 100 is provided with a water receiving tray 400, which is located on the lower side of the housing 110 and extends to the outer side of the housing 110 to collect any leaked water and condensate that may occur at the pipe assembly.

[0070] refer to Figure 5 6. The electrical box 300 includes a box body 310, a box cover 320 and a control board 330. An installation cavity is formed between the box body 310 and the box cover 320, and the control board 330 is disposed in the installation cavity.

[0071] The inner surface of the box body 310 is defined as the side of the box body 310 closest to the box cover 320. The control board 330 is detachably connected to the box body 310 by means of mechanical connection such as snap-fit ​​or screw connection.

[0072] The traditional electrical box 300, which is installed outside the fan coil unit 100, has poor versatility. For fan coil units 100 with and without return air boxes 200, different brackets are required to install and fix the electrical box 300. The production and assembly of the brackets result in high production costs and complicated assembly.

[0073] To solve the above problems, combined with Figure 4 In this application, a mounting part 140 is provided on the casing 110 of the fan coil unit 100. During installation, the box body 310 of the electrical box 300 is first fixed on the mounting part 140, and then the box cover 320 is placed on the box body 310.

[0074] Specifically, in combination Figure 7 The box body 310 has a plate-like structure. A bending part 311 is formed on one side of the box body 310. The bending part 311 is integrally formed with the box body 310 and is perpendicular to the box body 310. The box body 310 is fixed to the housing 110 through the bending part 311.

[0075] Specifically, a fastening part is formed on the bent part 311, and the fastening part is detachably connected to the mounting part 140.

[0076] refer to Figure 8 The bottom of the box body 310 also has a support part 313, which is located on the same side of the box body 310 as the bending part 311.

[0077] The support part 313 is formed by bending the bottom of the box body 310. The support part 313 and the box body 310 are also integrally formed structures, and the bent part 311 is set perpendicular to the box body 310.

[0078] The lid 320 is detachably connected to the support 313 to achieve the connection and fixation between the bottom of the lid 320 and the box body 310.

[0079] Combination Figure 4 , Figure 7 In some embodiments of this application, the mounting part 140 includes a card interface 141 formed on the housing 110, and the fastening part includes a buckle part 3111 disposed on the bending part 311. The buckle part 3111 is engaged with the card interface 141 to realize a detachable connection between the box body 310 and the housing 110.

[0080] The bent part 311 is connected to the housing 110 by a snap-fit, which can achieve the initial connection and positioning between the box 310 and the housing 110, and facilitate fixation.

[0081] Specifically, the latching part 3111 is formed on the bending part 311 and bends outward. The latching part 3111 is L-shaped in general, and a downward opening structure is formed between it and the bending part 311. During installation, the end of the latching part 3111 is latched into the card interface 141 and hung on the card interface 141 to achieve the initial positioning and connection between the bending part 311 and the housing 110.

[0082] In some embodiments of this application, the mounting portion 140 further includes a first fixing hole 142 formed on the housing 110, and the fastening portion further includes a first mating hole 3112 provided on the bending portion 311.

[0083] After the bending part 311 is initially connected and positioned by the snap-fit ​​part, the first fixing hole 142 and the first mating hole 3112 correspond one-to-one.

[0084] In other embodiments, the first fixing holes 142 are symmetrically arranged on the upper and lower sides of the card interface 141, and the first mating holes 3112 are symmetrically arranged on both sides of the card connector. The first fixing holes 142 are detachably connected to the corresponding first mating holes 3112 by fasteners.

[0085] After the bent part 311 is snapped into the housing 110, the fastener is connected to the corresponding first fixing hole 142 and first mating hole 3112 to realize the connection and fixation between the bent part 311 and the housing 110. The first fixing hole 142 and the first mating hole 3112 are respectively set on both sides of the snap-in interface 141 and the snap-in part, which helps to improve the stability of the connection between the bent part 311 and the housing 110.

[0086] refer to Figure 9 The lid 320 includes a front cover plate 321 and an upper cover plate 322 and a side cover plate 323 formed around the front cover plate 321. The upper cover plate 322 is located above the front cover plate 321, and the side cover plates 323 are located on both sides of the front cover plate 321.

[0087] In order to improve the overall structural strength of the lid 320, in some embodiments of this application, a reinforcing rib 317 is provided between the front cover plate 321 and the two side cover plates 323. The reinforcing rib 317 is specifically located at the corner where the front cover plate 321 and the two side cover plates 323 are connected, so as to prevent the lid 320 from deforming.

[0088] The top and bottom of the box body 310 and the box cover 320 are connected respectively. Specifically, in some embodiments of this application, the top of the box body 310 is formed with a limiting part 312 that is consistent with the extension direction of the bending part 311, and the upper cover plate 322 of the box cover 320 is provided with an upwardly extending positioning part 3221. A positioning opening 3121 is formed on the limiting part 312, and the positioning part 3221 is inserted into the positioning opening 3121.

[0089] The positioning part 3221 is connected to the positioning port 3121 from bottom to top, and the upper cover plate 322 is located inside the limiting part 312, realizing the connection and fixation between the top of the box cover 320 and the box body 310. The installation method is simple and quick, and the assembly efficiency is high.

[0090] In some embodiments of this application, a connecting upright 314 is also formed on the support portion 313. The connecting upright 314 is formed at the end of the support portion 313 and extends upward. The connecting upright 314 is arranged parallel to the box body 310. A second fixing hole 3141 is formed on the connecting upright 314.

[0091] The front cover plate 321 of the box cover 320 has a second mating hole 3211 corresponding to the fixing hole. The second mating hole 3211 is detachably connected to the second fixing hole 3141 by fasteners.

[0092] To improve the stability of the connection, the second mating hole 3211 is located at the lower position of the front cover plate 321, and at least two second mating holes 3211 are provided at intervals along the width direction of the front cover plate 321. The position and number of the second fixing holes 3141 are also adapted to the second mating holes 3211.

[0093] The bottom of the lid 320 is fixed to the connecting stand 314 by fasteners. During installation, the positioning part 3221 on the top of the lid 320 is first inserted into the positioning port 3121. Then, the first fixing hole 142 and the second mating hole 3211 are connected and fixed by fasteners to realize the assembly of the lid 320 and the box body 310.

[0094] The air conditioning unit involved in this application includes an electrical box 300 comprising a box body 310 and a box cover 320. A bending portion 311 is formed on the box body 310. When installing the electrical box 300, the box body 310 is first fixed to the casing 110 of the fan coil unit 100 through the bending portion 311, and then the box cover 320 is fixed to the support portion 313 of the box body 310. This fixing method of the electrical box 300 is more versatile, has a simple structure, and is easy to assemble on fan coil units 100 with different structural forms.

[0095] In addition, the connection between the housing 110 and the box 310 via snap-fit ​​and fasteners helps to improve the stability of the electrical box 300 installation and increase assembly efficiency.

[0096] Combination Figure 7 In some embodiments of this application, a wiring hole 316 is also provided at the upper position of the housing 310. The wiring hole 316 has an open structure at the top, for the first wire harness connected to the control board 330 to pass through.

[0097] The first wiring harness is specifically connected to the motor 120 on the fan coil unit 100 that drives the fan 130 to rotate. The above-mentioned structure of the wiring hole 316 facilitates the installation of the first wiring harness.

[0098] In some embodiments of this application, a wire fixing member 315 is also provided on the inner surface of the housing 310. A wire fixing channel is formed in the wire fixing member 315 for providing a limit for the second wire harness connected to the control board 330.

[0099] The second wiring harness is used to supply power to the electrical box 300. The wire fixing component 315 limits the second wiring harness, restricts the position of the second wiring harness in the installation cavity, and standardizes the wiring of the wiring harness.

[0100] The wire fixing component 315 is specifically formed by integral sheet metal processing. A through wire fixing channel is formed inside the wire fixing component 315. A connecting end is formed on the wire fixing component 315. The connecting end is specifically formed by two ends of the sheet metal. A through hole is formed on the connecting end. The wire fixing component 315 is fixed to the box body 310 through the through hole.

[0101] In some embodiments of this application, the support portion 313 is further provided with a wire-passing portion 3131 extending into the mounting cavity, and a wire-passing hole is formed in the wire-passing portion 3131 for connecting the second wire harness from the mounting cavity.

[0102] The wire guide 3131 corresponds to the wire fixing member 315 and is located directly below the wire fixing member 315. The second wire bundle extending downward from the wire fixing member 315 extends through the wire guide 3131 to the outside of the electrical box 300.

[0103] In some embodiments of this application, multiple heat dissipation parts 3231 are symmetrically arranged on the two side cover plates 323 on the box cover 320, and the multiple heat dissipation parts 3231 on each side cover plate 323 are spaced apart along the height direction of the side cover plate 323.

[0104] In some embodiments, the heat dissipation portion 3231 is a heat dissipation hole formed on the side cover plate 323.

[0105] In other embodiments, each heat dissipation part 3231 protrudes outward on the side cover plate 323, and each heat dissipation part 3231 has a heat dissipation hole with an opening facing downward.

[0106] The symmetrical design of the heat dissipation holes on the two side covers 323 allows airflow to form convection within the electrical box 300, improving heat dissipation. The downward opening of the heat dissipation holes also prevents water from splashing in from the inlet / outlet pipes or the exhaust valve, thus improving the safety of the electrical box 300.

[0107] refer to Figure 10 , Figure 11 In some other embodiments, the air conditioning unit involved in this application includes a fan coil unit 100, a return air box 200 and an electrical box 300. The fan coil unit 100 includes a housing 110, a fan 130, a motor 120, a filter and a heat exchanger, etc. The return air box 200 includes a housing and the housing 110 is connected to the housing.

[0108] In order to improve the versatility of the electrical box 300 connection, the return air box 200 involved in this application has a connection hole 210 formed on the box body. The connection hole 210 corresponds one-to-one with the first fixing hole 142. The return air box 200 is fixed between the housing 110 and the bending part 311 through the connection hole 210.

[0109] The housing also has an avoidance cut 220, the position of which is adapted to the position of the latching part 3111, so as to avoid interference between the latching part 3111 and the housing when it is connected to the card interface 141 on the housing 110.

[0110] That is, during installation, first connect the housing of the return air box 200 to the outside of the casing 110, with the first fixing hole 142 corresponding to the connecting hole 210. Then, connect the buckle part 3111 on the housing 310 of the electrical box 300 to the card interface 141 of the casing 110. Fasteners pass through the second fixing hole 3141, the connecting hole 210 and the first fixing hole 142 to connect the electrical box 300, the return air box 200 and the casing 110 together.

[0111] When the fan coil unit 100 is also equipped with a return air box 200, a connection hole 210 is pre-set on the box body of the return air box 200. The bending part 311, the housing 110 and the box body are synchronously connected and fixed by fasteners. The avoidance cut 220 can also provide avoidance for the position where the bending part 311 and the housing are snapped together. The electrical box 300 has stronger universality in connecting with different types of fan coil units 100, and the product line style is unified.

[0112] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0113] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0114] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An air conditioning unit, characterized in that, include: A fan coil unit, comprising a housing on which a mounting portion is formed; An electrical box, connected to the housing, the electrical box comprising: The box body is a plate-shaped structure. A bending part is formed on one side of the box body, and a fastening part is formed on the bending part. The fastening part is detachably connected to the mounting part. A support part is also formed at the bottom of the box body. The support part and the bending part are located on the same side of the box body. A box lid is detachably connected to the support, and an installation cavity is formed between the box lid and the box body; The control panel is located within the mounting cavity.

2. The air conditioning unit according to claim 1, characterized in that, The mounting portion includes a snap-fit ​​interface formed on the housing, and the fastening portion includes a snap-fit ​​portion disposed on the bending portion. The snap-fit ​​portion engages with the snap-fit ​​interface to achieve a detachable connection between the box and the housing.

3. The air conditioning unit according to claim 2, characterized in that, The mounting part further includes a first fixing hole formed on the housing, and the fastening part further includes a first mating hole provided on the bending part. The first fixing holes are symmetrically arranged on the upper and lower sides of the card interface, and the first mating holes are symmetrically arranged on both sides of the buckle part. The first fixing holes are detachably connected to the corresponding first mating holes by fasteners.

4. The air conditioning unit according to claim 1, characterized in that, The top of the box body has a limiting part that extends in the same direction as the bending part. The upper cover plate of the box lid has an upwardly extending positioning part. A positioning opening is formed on the limiting part, and the positioning part is inserted into the positioning opening.

5. The air conditioning unit according to claim 1, characterized in that, The support portion also has a connecting upright portion, which is arranged parallel to the box body. A second fixing hole is formed on the connecting upright portion. A second mating hole corresponding to the fixing hole is formed on the front cover plate of the box cover. The second mating hole is detachably connected to the second fixing hole by a fastener.

6. The air conditioning unit according to claim 1, characterized in that, The box body is also provided with a wiring hole at the upper position. The wiring hole has an opening structure at the top, which is used for the first wire harness connected to the control board to pass through.

7. The air conditioning unit according to claim 1, characterized in that, The inner surface of the box is also provided with a wire fixing component, and a wire fixing channel is formed in the wire fixing component to provide a limit for the second wire harness connected to the control board.

8. The air conditioning unit according to claim 7, characterized in that, The support portion is also provided with a wire guide portion extending into the mounting cavity, and a wire guide hole is formed in the wire guide portion for connecting the second wire bundle from the mounting cavity.

9. The air conditioning unit according to claim 1, characterized in that, Side cover plates are formed on both sides of the box cover, and multiple heat dissipation parts are symmetrically arranged on the two side cover plates. The multiple heat dissipation parts on each side cover plate are spaced apart along the height direction of the side cover plate. Each of the heat dissipation parts protrudes outward from the side cover plate, and each of the heat dissipation parts has a heat dissipation hole with an opening facing downward.

10. The air conditioning unit according to claim 3, characterized in that, It also includes a return air box, on which a connection hole is formed, which corresponds one-to-one with the first fixing hole. The return air box is fixed between the housing and the bending part through the connection hole. The housing also has an avoidance cut, the position of which is adapted to the position of the buckle.

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