Duct type air conditioner

Abstract

The utility model provides a duct type air conditioner, and belongs to the technical field of air conditioners. The duct type air conditioner comprises a machine shell, wherein the machine shell comprises a top plate; the fan plate is arranged in the machine shell so as to divide the inner space of the machine shell into an air inlet cavity and a heat exchange cavity; the heat exchanger is arranged in the heat exchange cavity; the heat exchange fan is arranged in the air inlet cavity and mounted on the fan plate; an opening is formed in the side, away from the top plate, of the electric appliance box; the first positioning part is convexly arranged on the fan plate, the first positioning part is provided with a fixing hole and an obliquely arranged fixing surface, the fixing surface is arranged away from the top plate, and one end of the fixing hole is located on the fixing surface; the second positioning part is concavely arranged on the first side wall of the electric appliance box, and a through hole is formed in the second positioning part; the first positioning part is contained in the second positioning part in a matched mode so that the positions of the through hole and the fixing hole can be aligned, when the electric appliance box is assembled, the fastener penetrates through the through hole through the opening to be connected into the fixing hole so that the electric appliance box can be fixedly connected with the fan plate, and the production efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to air conditioning technical field especially relates to a ducted air conditioner. BACKGROUND

[0002] With the popularization of air conditioners, more and more users choose to install central air conditioners at home. As a kind of central air conditioner, ducted air conditioner is favored by users for its low cost, simple structure, hidden installation and other advantages. The existing ducted air conditioner is installed in the ceiling, which mainly includes a casing and a heat exchanger and a heat exchanger fan installed inside the casing. An air inlet and an air outlet are formed on the casing. The heat exchanger fan introduces air from the air inlet into the casing, and the air is sent out from the air outlet after heat exchange by the heat exchanger.

[0003] The ducted air conditioner further includes an electrical box. In the related art, the electrical box is connected to the top plate of the casing and the fan plate inside the casing. During assembly of the electrical box, the electrical box is usually positioned on the top plate of the casing by relying on the shape. After placing the electrical box on the top plate, it is difficult to align the fixing hole of the electrical box and the fan plate at one time, and manual adjustment is required to find the fixing hole, which affects the production efficiency. This problem is more obvious when the electrical box is deformed.

[0004] In addition, in the related art, the fixing operation angle of the electrical box and the fan plate is horizontal or perpendicular to the production line body, which requires the staff to kneel or bend down during installation, which is inconvenient to operate and further reduces the production efficiency. INVENTION CONTENTS

[0005] The utility model aims at at least in a certain extent solves one of the technical problems in the related art. To this end,

[0006] According to the embodiment of the present disclosure, a ducted air conditioner is provided, comprising:

[0007] A casing is provided with an air inlet and an air outlet, and the casing includes a top plate;

[0008] A fan plate is arranged in the casing to divide the internal space of the casing into an air inlet cavity and a heat exchange cavity. The air inlet is communicated with the air inlet cavity, and the air outlet is communicated with the heat exchange cavity.

[0009] A heat exchanger is arranged in the heat exchange cavity to exchange heat with the air entering the heat exchange cavity.

[0010] A heat exchanger fan is arranged in the air inlet cavity and mounted on the fan plate. The heat exchanger fan introduces air from the air inlet into the casing, and the air is sent out from the air outlet after heat exchange by the heat exchanger. An electrical box is connected to the fan plate, and the electrical box has an opening on the side away from the top plate.

[0011] The first positioning part is protruded on the side of the fan plate away from the heat exchange cavity, and a fixing hole is arranged on the first positioning part.

[0012] The second positioning part is recessed on the first side wall of the electric appliance box, and a through hole is arranged on the second positioning part.

[0013] The first positioning part is adapted to the inside of the second positioning part, so that the through hole and the fixing hole are arranged in alignment, and a fastener is connected to the fixing hole through the through hole, so that the electric appliance box and the fan plate are fixedly connected.

[0014] In the above technical solution, the following advantages or beneficial effects are achieved: through the cooperation of the first positioning part and the second positioning part, the through hole and the fixing hole can be aligned at one time when the electric appliance box is assembled on the production line, thereby improving the assembly efficiency of the electric appliance box. At the same time, the fixing surface is inclined and away from the top plate, so that the fixing surface is arranged towards the production staff on one side of the production line, and the production staff can observe the fixing hole and the through hole arranged in alignment with the fixing hole, thereby facilitating the fixing operation and effectively improving the production efficiency.

[0015] In some embodiments, an included angle γ is formed between the fixing surface and the plane on which the top plate is located, where γ≥15° and γ≤75°.

[0016] In the above technical solution, the following advantages or beneficial effects are achieved: by reasonably setting the included angle γ, the operator can perform the fixing operation at a more comfortable angle when installing the electric appliance box, without needing to bend the knees or bend over, thereby reducing the labor intensity.

[0017] In some embodiments, the first positioning part is tapered in the direction of the fan plate towards the inside of the electric appliance box.

[0018] In the above technical solution, the following advantages or beneficial effects are achieved: the tapered first positioning part cooperates with the second positioning part to achieve the function of assembly guidance, so that the operator can more easily guide the electric appliance box to the correct position.

[0019] In some embodiments, the first positioning part is a quadrangular pyramid structure or a quadrangular pyramid frustum structure, the second positioning part includes three limiting side walls close to the first positioning part, and the three limiting side walls and the corresponding three side surfaces of the first positioning part are matched to form a limiting structure for limiting movement of the electric appliance box in three directions of the fan plate; wherein the limiting side wall of the three limiting side walls away from the top plate is a second side wall, and the through hole is located on the second side wall.

[0020] In the above technical solution, the first positioning part is configured as a quadrangular pyramid or a quadrangular pyramid frustum structure, which can have good strength and stability, and improve assembly firmness; the three limiting side walls of the second positioning part are matched with the three side surfaces of the first positioning part to limit movement of the electric appliance box in multiple directions during fixing operation, so as to accurately position the fixing hole position by production staff.

[0021] In some embodiments, a first cross section of the first positioning part perpendicular to a length direction of the fan plate is triangular; in the first cross section, a maximum dimension between the first positioning part and the fan plate is H1, a length of the first positioning part on the fan plate is L, H1 / L≥0.27, H1 / L≤3.7, and the first cross section passes through a center line of the first positioning part.

[0022] In the above technical solution, the ratio of H1 to L is reasonably set, so that the included angle between the fixing surface and the fan plate is within a reasonable range, effectively avoiding the operator to bend or lean to perform the fixing operation.

[0023] In some embodiments, the first positioning part is a profiled structure on the fan plate.

[0024] In the above technical solution, the first positioning part of the profiled structure has high strength, effectively preventing deformation of the fixing position during assembly or use.

[0025] In some embodiments, the fixing hole is a flanged hole, and a height dimension of the flanged hole is H2, H2≥2mm.

[0026] In the above technical solution, the fixing hole is set as a flanged hole, and its height dimension is reasonably set, which can significantly enhance the structural strength of the fixing hole, prevent the fixing hole from being deformed or damaged due to external force during assembly, and thus improve the connection reliability of the electric appliance box and the fan plate.

[0027] In some embodiments, the first positioning part is arranged close to the opening, the fastener is a self-tapping screw, and a hole diameter of the fixing hole is smaller than a diameter of the self-tapping screw.

[0028] The fixed hole has a diameter smaller than the diameter of the self-tapping screw, so that the self-tapping screw can be tightly engaged in the fixed hole during fastening, sufficient fastening force is provided, and the fixing strength between the electric appliance box and the fan plate is enhanced.

[0029] In some embodiments, the electric appliance box is loaded on the top plate, and the cabinet further comprises a bottom plate oppositely arranged with the top plate along the height direction of the cabinet, and the bottom plate is provided with a relief portion corresponding to the electric appliance box.

[0030] The above arrangement enables the electric appliance box to be installed in the cabinet, the internal space of the cabinet can be fully utilized, and the structure of the whole ducted type air conditioner is more compact. In addition, the relief portion provided on the bottom plate provides sufficient installation space for the electric appliance box, and interference between the bottom plate and the electric appliance box is avoided.

[0031] Another aspect of the present application also provides a ducted type air conditioner, characterized in that comprising:

[0032] A fan plate is arranged in the cabinet to divide the internal space of the cabinet into an air inlet cavity and a heat exchange cavity, the air inlet is communicated with the air inlet cavity, and the air outlet is communicated with the heat exchange cavity.

[0033] A heat exchanger is arranged in the heat exchange cavity to exchange heat with air entering the heat exchange cavity.

[0034] A heat exchange fan is arranged in the air inlet cavity and mounted on the fan plate, the heat exchange fan introduces air from the air inlet into the cabinet, and the air is sent out from the air outlet after heat exchange by the heat exchanger; an electric appliance box is mounted on the top plate, and the electric appliance box has an opening away from the top plate.

[0035] A first positioning portion is protruded on the side of the fan plate away from the heat exchange cavity, and the first positioning portion is provided with a fixed hole for connecting a fastener;

[0036] A second positioning portion is recessed from the first side wall of the electric appliance box towards the interior of the electric appliance box, the second positioning portion has a second side wall arranged away from the top plate, the second side wall is provided with a through hole, and the second side wall is arranged in an inclined manner towards the fan plate in the direction from the top to the bottom of the cabinet.

[0037] The first positioning portion is adapted to be accommodated in the interior of the second positioning portion, so that the through hole and the fixed hole are aligned, and the fastener is connected to the fixed hole through the through hole and the opening, so that the electric appliance box and the fan plate are fixedly connected.

[0038] In the above technical solution, the following advantages or beneficial effects are achieved: by setting the first positioning part and the second positioning part, and the first positioning part being adapted to be accommodated inside the second positioning part, the through hole and the fixing hole are quickly aligned, the assembly time is reduced, and the fixing operation of the electric appliance box and the fan plate is more convenient. At the same time, the second side wall is inclined and away from the top plate, so that the second side wall is arranged towards the production staff on one side of the production line body, which facilitates the production staff to observe the through hole and realize the fixing operation, and effectively improves the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0040] Figures 1-2 is a structure perspective view of the air duct machine according to an embodiment of the present disclosure;

[0041] Figure 3 is a sectional view of the air duct machine in the width direction of the air duct machine according to an embodiment of the present disclosure;

[0042] Figure 4 is a structure schematic view of the electric appliance box installed on the air duct machine according to an embodiment of the present disclosure;

[0043] Figure 5 is a connection schematic view of the electric appliance box, the top plate and the fan plate according to an embodiment of the present disclosure;

[0044] Figure 6 is a structure schematic view of the electric appliance box according to an embodiment of the present disclosure;

[0045] Figure 7 is Figure 4 is a local enlarged view of A in FIG. 8;

[0046] Figure 8 is a local schematic view of the fan plate according to an embodiment of the present disclosure;

[0047] Figure 9 is a local schematic view of the fan plate from another perspective according to an embodiment of the present disclosure;

[0048] Figure 10 is an assembly schematic view of the electric appliance box and the fan plate from the perspective of the production staff according to an embodiment of the present disclosure;

[0049] Figure 11is a schematic view of the adaptation of the second positioning part to the first positioning part according to an embodiment of the present disclosure;

[0050] Figure 12 is a partial side view of the fan plate according to an embodiment of the present disclosure;

[0051] Figure 13 is a schematic view of the first cross section according to an embodiment of the present disclosure Figure 1 ;

[0052] Figure 14 is a schematic view of the first cross section according to an embodiment of the present disclosure Figure 2 ;

[0053] Figure 15 is a schematic view of the connection of the electrical box, the top plate and the bottom plate according to an embodiment of the present disclosure;

[0054] Figure 16 is a schematic view of the assembly operation of the electrical box according to an embodiment of the present disclosure.

[0055] In the above figures: air duct machine 100; machine shell 1; air inlet cavity 11; heat exchange cavity 12; air inlet 13; air outlet 14; top plate 15; bottom plate 16; fan plate 17; heat exchanger 2; heat exchange fan 3; electrical box 4; opening 41; open mouth 42; first side wall 43; electrical control assembly 5; first positioning part 6; fixing surface 61; fixing hole 62; second positioning part 7; limiting side wall 71; second side wall 7111; through hole 72; electrical box cover 8; avoiding part 9. DETAILED DESCRIPTION

[0056] In order to make the purpose and the embodiments of the present application more clear, the exemplary embodiments of the present application will be described clearly and completely below in combination with the drawings of the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.

[0057] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described embodiments. It is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0058] The terms "first", "second", and the like in the specification and claims of the present application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit the specific order or sequence, unless otherwise specified. It should be understood that the terms used in this way can be interchanged under appropriate circumstances.

[0059] The terms "comprises", "comprising", "includes", "including", "has", "having" and their variants are intended to cover and do not exclude other components, features, structures and / or properties unless expressly specified otherwise.

[0060] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0061] In this application, the central air conditioning duct type indoor unit (referred to as duct type air conditioner) belongs to air conditioner, which includes duct type air conditioner (i.e. indoor unit of air conditioner) and air conditioner outdoor unit (i.e. outdoor unit of air conditioner), and the air conditioner performs the refrigeration cycle of the indoor unit by using compressor, condenser, expansion valve and evaporator, which includes a series of processes, involving compression, condensation, expansion and evaporation, and supplies refrigerant to the air that has been adjusted and heat exchanged.

[0062] The present application provides a duct type air conditioner 100, which is described below with reference to Figures 1-16 The duct type air conditioner 100 is described. Among them, Figures 1-3 The whole machine diagram of the duct type air conditioner 100 provided by the present application is shown in the figure, which is the indoor unit part of the duct type air conditioner, in addition, the duct type air conditioner also includes air conditioner outdoor unit.

[0063] Reference Figures 1-2 In an exemplary embodiment of the duct type air conditioner 100 of the present application, the duct type air conditioner 100 can include a casing 1. The casing 1 forms the overall appearance of the duct type air conditioner 100.

[0064] The casing 1 is internally formed with a receiving cavity. The receiving cavity is used to accommodate and fix various components in the duct type air conditioner 100, which can avoid collision between external objects and various components in the casing 1, thereby improving the reliability of the duct type air conditioner 100 during transportation or installation.

[0065] In some embodiments of the present application, the casing 1 can include an air inlet 13.

[0066] The air inlet 13 is in communication with the receiving cavity, and the air inlet 13 serves as the entrance for the external air flow into the casing 1, allowing indoor air to enter the receiving cavity from the air inlet 13.

[0067] In some embodiments of the present application, the casing 1 can include an air outlet 14.

[0068] The air outlet 14 is in communication with the accommodation cavity, and the air outlet 14 serves as an outlet for the heat exchange air flow in the casing 1 to flow out, allowing the air flow in the accommodation cavity to flow out through the air outlet 14.

[0069] The air inlet 13 can be arranged at one end of the casing 1. The air outlet 14 can be arranged at the other end of the casing 1.

[0070] In this embodiment, the casing 1 is substantially cuboid. As shown in Figure 1 , the air inlet 13 and the air outlet 14 are arranged at opposite ends of the casing 1 in the width direction of the casing 1.

[0071] The casing 1 can include a top plate 15. The top plate 15 forms a top end of the casing 1.

[0072] The casing 1 can include a bottom plate 16. The bottom plate 16 forms a bottom end of the casing 1.

[0073] The top end of the casing 1 and the bottom end of the casing 1 are two ends of the casing 1 arranged in the vertical direction (the height direction of the casing 1). That is, the top plate 15 and the bottom plate 16 are arranged in the height direction of the casing 1.

[0074] In this embodiment, the casing 1 includes the top plate 15 and the bottom plate 16. Figure 4 In some embodiments of the present application, the ducted air conditioner 100 can include a fan plate 17 connected vertically to the top plate.

[0075] The fan plate 17 extends in the length direction of the casing 1 and is arranged vertically in the interior of the casing 1 to divide the interior space of the casing 1 into the air inlet cavity 11 and the heat exchange cavity 12 arranged in the width direction of the casing 1.

[0076] The air inlet cavity 11 is in communication with the air inlet 13. The heat exchange cavity 12 is in communication with the air outlet 14.

[0077] In this embodiment, the casing 1 includes the air inlet cavity 11 and the heat exchange cavity 12. Figure 3 In some embodiments of the present application, the ducted air conditioner 100 can include a heat exchanger 2.

[0078] The heat exchanger 2 is arranged in the heat exchange cavity 12 to exchange heat with the air entering the heat exchange cavity 12.

[0079] The heat exchanger 2 can be arranged at a position corresponding to the air outlet 14.

[0080] The heat exchanger 2 can be arranged obliquely in the heat exchange cavity 12.

[0081] In this embodiment, the heat exchanger 2 is arranged obliquely toward the side close to the air outlet 14 in the height direction of the casing 1. This arrangement increases the heat exchange area of the heat exchanger 2, improves the heat exchange efficiency of the ducted air conditioner 100, and increases the amount of air exchanged.

[0082] In some embodiments of the present application, the ducted type air conditioner 100 can include a heat exchanger fan 3.

[0083] The heat exchanger fan 3 is disposed in the air inlet chamber 11, and is configured to drive indoor air outside the casing 1 to enter the casing 1 through the air inlet 13, and to cause air in the casing 1 to flow in the direction of the air inlet 13 toward the air outlet 14.

[0084] The heat exchanger fan 3 can be a centrifugal fan. The heat exchanger fan 3 is mounted on the fan plate 17.

[0085] In some embodiments of the present application, the air conditioner has a refrigerant circuit. The refrigerant circuit is connected in series to a compressor, a condenser, a throttling device, and an evaporator to circulate refrigerant in a loop.

[0086] The air conditioner outdoor unit can include an outdoor casing.

[0087] The outdoor casing can include an outdoor receiving space.

[0088] The outdoor casing can include an outdoor air inlet. The outdoor air inlet can be in communication with the outdoor receiving space. The outdoor air inlet can be configured to introduce outdoor air into the outdoor receiving space.

[0089] The outdoor casing can include an outdoor air outlet. The outdoor air outlet can be in communication with the outdoor receiving space. The outdoor air outlet can be configured to introduce outdoor air out of the outdoor receiving space.

[0090] The air conditioner outdoor unit can include an outdoor heat exchanger. The outdoor heat exchanger can be disposed in the outdoor receiving space.

[0091] The air conditioner outdoor unit can include an outdoor fan. The outdoor fan can be disposed in the outdoor receiving space.

[0092] The outdoor fan can be configured to rotate to cause outdoor air to enter the outdoor receiving space through the outdoor air inlet, exchange heat with the outdoor heat exchanger, and exit the outdoor receiving space through the outdoor air outlet.

[0093] The air conditioner can include a compressor. The compressor can be disposed in the outdoor receiving space.

[0094] The air conditioner can include a throttling device. The throttling device can be configured to throttle. The throttling device can be disposed in the outdoor receiving space.

[0095] The air conditioner can be configured to perform a refrigeration cycle of the air conditioner using the compressor, the condenser, the throttling device, and the evaporator. The refrigeration cycle can include a series of processes involving compression, condensation, expansion, and evaporation, and can supply refrigerant to air that has been conditioned and heat exchanged.

[0096] The compressor compresses the refrigerant gas in a low-temperature and low-pressure state to discharge refrigerant gas in a high-temperature and high-pressure state. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0097] The throttling device expands the high-temperature and high-pressure state liquid phase refrigerant condensed in the condenser into a low-pressure liquid phase refrigerant.

[0098] The evaporator evaporates the refrigerant expanded in the throttling device and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor.

[0099] The evaporator can achieve a refrigeration effect by exchanging heat with the material to be cooled using the latent heat of evaporation of the refrigerant. Throughout the cycle, the air conditioner can adjust the temperature of the indoor space.

[0100] In both the heat exchanger 2 and the outdoor heat exchanger, one of which is a condenser and the other of which is an evaporator, when the heat exchanger 2 is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the heat exchanger 2 is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

[0101] In some embodiments of the present application, with reference to Figure 4 , the ducted air conditioner 100 can have an electrical box 4. The interior of the electrical box 4 is provided with an electrical control assembly 5. The electrical control assembly 5 is configured to control at least the compressor, the expansion valve, and the heat exchange fan 3, thereby controlling the operation of the entire ducted air conditioner 100.

[0102] In this embodiment, with reference to Figure 5 , the electrical box 4 is loaded on the top plate 15, and the electrical box 4 and the heat exchange fan 3 are spaced apart in the length direction of the casing 1.

[0103] By loading the electrical box 4 on the top plate 15, the electrical box 4 is installed in the casing 1, and the internal space of the casing 1 can be fully utilized, so that the structure of the entire ducted air conditioner 100 is more compact.

[0104] The side of the electrical box 4 away from the heat exchange fan is provided with an opening 42, and the interior of the electrical box 4 has a mounting space, and the electrical control assembly 5 is mounted in the mounting space through the opening 42.

[0105] During assembly, the electrical box 4 is first loaded on the top plate 15, and then the electrical box 4 is connected and fixed with the fan plate 17 and the top plate 15 through fasteners. In related technologies, the connection of the electrical box 4 and the fan plate 17 usually relies on the shape for positioning. After the electrical box 4 is placed on the top plate 15, manual adjustment is required to find the fixed hole position, which affects the assembly and production efficiency. This problem is more obvious when the electrical box 4 comes with deformation.

[0106] To solve the above technical problems, in the embodiment, the structure of the electric appliance box 4 and the fan plate 17 is arranged so that they form a matched positioning structure, thereby realizing accurate alignment of the fixing hole 62 position and effectively improving the assembly efficiency.

[0107] Specifically, referring to Figure 6 , Figure 7 , the positioning structure can include a second positioning part 7, which is recessed on the first side wall 43 of the electric appliance box 4.

[0108] The second positioning part 7 can be recessed from the first side wall 43 of the electric appliance box 4 towards the inside of the electric appliance box 4. A through hole 72 is arranged on the second positioning part 7, which is used for the fastener to pass through.

[0109] The positioning structure can include a first positioning part 6, which is matched with the second positioning part 7.

[0110] Referring to Figure 8 , Figure 9 , the first positioning part 6 is protruded on the side of the fan plate 17 away from the heat exchange cavity 12. The first positioning part 6 is provided with a fixing hole 62, which is used for the fastener to connect and fix.

[0111] When the electric appliance box 4 is assembled, referring to Figure 11 , the first positioning part 6 is matched and accommodated in the inside of the second positioning part 7, so that the through hole 72 and the fixing hole 62 are arranged in position alignment, and the fastener passes through the through hole 72 and is connected in the fixing hole 62, so that the electric appliance box 4 and the fan plate 17 are fixedly connected.

[0112] In the embodiment, through the cooperation of the first positioning part 6 and the second positioning part 7, when the electric appliance box 4 is assembled on the production line body, the through hole 72 and the fixing hole 62 can be aligned at one time, thereby improving the assembly efficiency of the electric appliance box 4.

[0113] The assembly work of the ducted air conditioner 100 is carried out on the production line body, wherein the top plate 15 of the ducted air conditioner 100 is in contact with the plane of the production line body. In the related art, the fixing operation angle of the electric appliance box 4 and the fan plate 17 is generally horizontal or perpendicular to the production line body. The standard line body height is generally 0.8-1m, and the height of the ducted air conditioner 100 is about 0.2m, so that the connection and fixing position of the electric appliance box 4 and the ducted air conditioner 100 is about 1-1.2m away from the ground, the fixing hole 62 position is not convenient for the production staff to observe, and the production staff needs to kneel or bend down to perform the fixing operation, thereby further reducing the production efficiency.

[0114] To solve the above technical problems, referring to Figure 12 , the first positioning part 6 can include a fixing surface 61. One end of the fixing hole 62 is located on the fixing surface 61.

[0115] With reference to Figure 12 , the fixing surface 61 is arranged away from the top plate 15 and is arranged obliquely in the direction from the top to the bottom of the shell 1 towards the direction of the fan plate 17. The center line of the fixing hole 62 is arranged perpendicularly to the fixing surface 61.

[0116] The side of the electric appliance box 4 away from the top plate 15 has an opening 41. In this embodiment, the fixing surface 61 is arranged obliquely and away from the top plate 15, so that the production staff on one side of the production line can directly observe the through hole 72 and the fixing hole 62 (as shown in Figure 10 ) through the opening 41. After the fixing hole 62 and the through hole 72 are arranged perpendicularly to the fixing surface 61, the staff can operate normally, the line of sight and the screw and the fixing hole 62 are substantially on the same line, reducing the need to bend or stretch the knees, significantly improving the convenience of the fixing operation, and further improving the production efficiency.

[0117] In some embodiments of the present application, with reference to Figure 12 , the fixing surface 61 forms an included angle γ with the plane in which the top plate 15 is located. Wherein, V≥15°. γ≤75°.

[0118] In this embodiment, by reasonably setting the included angle γ, the operating worker can perform the fixing operation at a more comfortable angle when installing the electric appliance box 4, without the need for the staff to bend the knees or bend over, which is conducive to reducing the labor intensity.

[0119] The included angle γ cannot be too small, otherwise the fastener penetrating through the through hole 72 is close to horizontal, and the production staff may need to bend over to perform the fixing operation, which is not conducive to the line of sight and the use of tools of the production staff, affecting the assembly effect. In order to improve the fixing convenience, the included angle γ is set to be not less than a first parameter value. The first parameter value can be any value between 15° and 17°. A suitable specific parameter is considered in specific design. For example, the first parameter value can be 15°.

[0120] The included angle γ cannot be too large, otherwise the fastener penetrating through the through hole 72 is close to vertical, and the production staff needs to bend over to operate and fix, increasing the operation difficulty and fatigue. In order to reduce the operation difficulty, the included angle γ is set to be not greater than a second parameter value. The second parameter value can be any value between 70° and 75°. A suitable specific parameter is considered in specific design. For example, the second parameter value can be 75°.

[0121] In this embodiment, the first positioning part 6 and the second positioning part 7 cooperate to achieve the best operation angle and positioning effect, which is conducive to improving the production efficiency.

[0122] It can be understood that the specific angle of the included angle γ can be selected and adjusted according to different line body heights to achieve more extensive applicability.

[0123] In some embodiments of the present application, the second positioning part 7 can include a second side wall 711 which is arranged in parallel with the fixing surface 61. Referring to Figure 11 , the through hole 72 is arranged through the second side wall 711.

[0124] In the present embodiment, the second side wall 711 is arranged in parallel with the fixing surface 61, so that both are inclined surfaces, which improves the connection stability of the electric appliance box 4 and the fan plate 17.

[0125] In some embodiments of the present application, the first positioning part 6 is arranged in a tapered manner in the direction from the fan plate 17 to the electric appliance box 4. Referring to Figure 12 , F1 is the direction from the fan plate 17 to the electric appliance box 4.

[0126] In the present embodiment, the tapered first positioning part 6 cooperates with the second positioning part 7 to achieve the function of assembly guidance, so that the operator can more easily guide the electric appliance box 4 to the correct position, ensuring that the through hole 72 of the electric appliance box 4 and the fixing hole 62 of the fan plate 17 are quickly aligned.

[0127] In some embodiments of the present application, the first positioning part 6 is a quadrangular pyramid structure or a quadrangular pyramid frustum structure.

[0128] It can be understood that the first positioning part 6 in the quadrangular pyramid structure or the quadrangular pyramid frustum structure has four outer sides connected with the fan plate 17. Among them, one outer side of the four outer sides away from the top plate is the fixing surface 61.

[0129] The second positioning part 7 can include three limiting side walls 71 connected in sequence, three limiting side walls 71 are matched with three outer sides of the four outer sides of the first positioning part 6, and each limiting side wall 71 and the corresponding outer side form a limit to limit the movement of the electric appliance box 4 in three directions of the fan plate 17.

[0130] Among them, the limiting side wall 71 away from the top plate 15 in the three limiting side walls 71 is the second side wall 711, and the through hole 72 is arranged through the second side wall 711.

[0131] In the present embodiment, by configuring the first positioning part 6 as a quadrangular pyramid or a quadrangular pyramid frustum structure, it can have good strength and stability, so that the fixed position of the fastener is not easy to deform, which is conducive to improving the assembly firmness.

[0132] The three limiting side walls 71 of the second positioning part 7 cooperate with the corresponding three sides of the first positioning part 6, which can limit the movement of the electric appliance box 4 in multiple directions on the fan plate 17 during the fixing operation, so as to accurately position the positions of the fixing hole 62 and the through hole 72 by the production staff.

[0133] In some embodiments of the present application, the first positioning portion 6 has a triangular shape in a first cross section perpendicular to the length direction of the fan plate 17, and the first cross section passes through the center line of the first positioning portion 6.

[0134] With reference to Figure 13 In the first cross section, the maximum dimension between the first positioning portion 6 and the fan plate 17 is H1, and the length of the first positioning portion 6 on the fan plate 17 is L. H1 / L≥0.27. H1 / L≤3.7.

[0135] In the present embodiment, the ratio of H1 to L is reasonably set in a range, so that the included angle between the fixing surface 61 and the fan plate 17 is within a reasonable range, effectively avoiding the operator from bending or leaning to perform the fixing operation.

[0136] The ratio of H1 to L cannot be too small, otherwise the dimension of the first positioning portion 6 in the width direction of the casing 1 is small, which can result in weak positioning cooperation between the electric appliance box 4 and the fan plate 17, so that the first positioning portion 6 is easily separated from the second positioning portion 7, affecting the positioning effect. At the same time, too small H1 / L can require the production staff to bend to perform the fixing operation, increasing the operation difficulty and labor intensity, and being not conducive to improving the production efficiency.

[0137] In order to improve the production efficiency, H1 / L is set to be not less than a third parameter value. The third parameter value can be any value between 0.27 and 0.5. In the specific design, a suitable specific parameter is selected. For example, the third parameter value can be 0.27.

[0138] The ratio of H1 to L cannot be too large, otherwise the height of the first positioning portion 6 is high and the connection position of the first positioning portion 6 with the fan plate 17 is small, so that the first positioning portion 6 is not easy to form a press type. At the same time, too large H1 / L can require the staff to lean to operate during assembly, increasing the operation difficulty and labor intensity, thereby reducing the production efficiency.

[0139] In order to improve the production efficiency, H1 / L is set to be not greater than a fourth parameter value. The fourth parameter value can be any value between 3.5 and 3.7. In the specific design, a suitable specific parameter is selected. For example, the fourth parameter value can be 3.7.

[0140] In the present embodiment, H1 is 10 mm, L is 20 mm, and H1 / L=1 / 2 is the best.

[0141] In some embodiments of the present application, the first positioning portion 6 is a press type structure on the fan plate 17.

[0142] It can be understood that the press type structure on the fan plate 17 is formed by integrally press type processing of part of the fan plate 17 by a mold.

[0143] In this embodiment, the strength and machining precision of the first positioning part 6 can be improved through the profiling process, and the through hole 72 and the fixing hole 62 can be quickly aligned while effectively preventing deformation of the fixing position during subsequent assembly or use.

[0144] In some embodiments of the present application, the second positioning part 6 is a profiling structure on the first side wall 43 of the electric appliance box 4.

[0145] That is, the second positioning part 6 is integrally profiled by the partial first side wall 43 through a mold.

[0146] The profiling process can achieve high-precision forming effects, ensuring that the size and shape of the first positioning part 6 and the second positioning part 7 meet the design requirements, thereby achieving positioning accuracy and precise positioning of the electric appliance box 4 on the fan plate 17.

[0147] The first positioning part 6 is recessed from the fan plate 17 to the electric appliance box 4, and the fixing hole 62 is a flanged hole. Figure 14 The height dimension of the flanged hole is H2, and H2≥2mm.

[0148] In this embodiment, by setting the fixing hole 62 as a flanged hole and reasonably setting its height dimension, the structural strength of the fixing hole 62 can be significantly enhanced to prevent deformation or damage of the fixing hole 62 due to external forces during assembly, thereby improving the connection reliability of the electric appliance box 4 and the fan plate 17.

[0149] The height dimension H2 of the flanged hole cannot be too small, otherwise it cannot meet the structural strength requirement, which can cause the flanged part to be easily damaged and can also cause the fixing hole 62 and the fastener to not fit tightly, affecting the connection stability and reliability of the electric appliance box 4 and the fan plate 17.

[0150] In order to enhance the structural strength of the fixing hole 62, the height H2 is set to be not less than a fifth parameter value. The fifth parameter value can be any value between 2mm and 2.3mm. A suitable specific parameter can be selected during specific design. For example, the fifth parameter value can be 2mm.

[0151] It should be noted that the height of the flanged hole is the distance dimension between the free end (the end away from the fixing surface 61) of the flanged hole and the fixing surface 61.

[0152] In other embodiments, the thickness of the fan plate 17 is W1, the height dimension of the flanged hole is H2, and H2-W1≥1.2mm.

[0153] H2-W1 cannot be too small, otherwise the height of the flanged hole is not enough to provide sufficient structural strength. This can cause the flanged hole to be easily deformed or damaged during the tightening of the fastener, affecting the fixing effect.

[0154] By reasonably setting the relationship between the height H2 of the flanging hole and the thickness W1 of the fan plate 17, the structural strength of the fixed position and the installation stability of the fastener can be significantly improved.

[0155] In this embodiment, the first positioning part 6 is arranged close to the opening 41, so that the production personnel can directly perform the fastener assembly operation through the opening 41 of the electric appliance box 4. The fastener can directly enter the inside of the electric appliance box 4 through the opening 41, align with the through hole 72 and be fixed in the fixing hole 62 of the fan plate 17, not only making the production personnel directly observe the through hole 72 through the opening 41, but also reducing the difficulty of the operator needing to approach the through hole 72 from the outside of the electric appliance box 4, and improving the assembly convenience.

[0156] In some embodiments, the fastener is a self-tapping screw, and the hole diameter of the fixing hole 62 is smaller than the diameter of the self-tapping screw.

[0157] In this embodiment, by setting the hole diameter of the fixing hole 62 to be smaller than the diameter of the self-tapping screw, the self-tapping screw can be tightly engaged in the fixing hole 62 during the fastening process, which can provide sufficient fastening force, thereby enhancing the fixing strength between the electric appliance box 4 and the fan plate 17.

[0158] Reference Figure 15 The electric appliance box 4 is loaded on the top plate 15. The bottom plate 16 of the cabinet 1 is provided with a relief part 9 corresponding to the electric appliance box 4.

[0159] In this embodiment, by providing the relief part 9 on the bottom plate 16, sufficient installation space is provided for the electric appliance box 4, and interference between the bottom plate 16 and the electric appliance box 4 is avoided.

[0160] In other embodiments, the positioning structure can include a first positioning part 6, which is protruded on the side of the fan plate 17 away from the heat exchange cavity 12, and the first positioning part 6 is provided with a fixing hole 62 for connecting the fastener.

[0161] The positioning structure can include a second positioning part 7, which is recessed from the first side wall 43 of the electric appliance box 4 towards the inside of the electric appliance box 4. The second positioning part 7 has a second side wall 711 arranged away from the top plate 15, the second side wall 711 is vertically provided with a through hole 72, and the second side wall 711 is arranged in an inclined manner from the top of the cabinet 1 to the bottom towards the direction of the fan plate 17.

[0162] The first positioning part 6 is adapted to be accommodated in the inside of the second positioning part 7, so that the through hole 72 and the fixing hole 62 are aligned in position, and the fastener is connected to the inside of the fixing hole 62 through the through hole 72 and the opening 41, so that the electric appliance box 4 and the fan plate 17 are fixedly connected.

[0163] In the embodiment, the first positioning part 6 and the second positioning part 7 are arranged to ensure the quick alignment of the through hole 72 and the fixing hole 62, reduce the assembly time, and make the fixing operation of the electric appliance box 4 and the fan plate 17 more convenient. Meanwhile, the second side wall 711 is arranged to be inclined and away from the top plate 15, so that the second side wall 711 is arranged to face the production staff on the side of the production line body, facilitating the production staff to observe the through hole 72 and realize the fixing operation, so that the production staff can perform the fixing operation at a more comfortable angle when installing the electric appliance box 4, reducing the need to bend or stretch the knees, effectively improving the production efficiency, and reducing the labor intensity.

[0164] Reference Figure 15 The side of the electric appliance box 4 away from the heat exchange fan has an opening 42, and the electric control assembly 5 is installed in the electric appliance box 4 through the opening 42.

[0165] The ducted air conditioner 100 can include an electric appliance box cover 8. The electric appliance box cover 8 is detachably connected with the electric appliance box cover 8, and is used to shield the opening 42 and the opening 41 away from the top plate 15.

[0166] In the embodiment, the electric appliance box cover 8 is arranged to define a closed space for installing the electric control assembly 5 when the electric appliance box cover 8 is connected with the electric appliance box 4, effectively protecting the electric control assembly 5.

[0167] In some embodiments of the present application, reference Figure 16 When the production line body height H3 is 0.8-1 m, the operation angle of the production staff is best when the included angle γ is 45°.

[0168] When the included angle γ is 45°, the staff normally stands beside the production line, so that the line of sight, the fixing screwdriver, the screw, the through hole 72, and the fixing hole 62 are basically on the same straight line, facilitating the operation.

[0169] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0170] In order to facilitate explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A ducted air conditioner, characterized in that, include: A housing having an air inlet and an air outlet, the housing including a top plate; A fan plate is disposed inside the housing to divide the internal space of the housing into an air inlet chamber and a heat exchange chamber. The air inlet is connected to the air inlet chamber, and the air outlet is connected to the heat exchange chamber. A heat exchanger is disposed in the heat exchange chamber to exchange heat with the air entering the heat exchange chamber. A heat exchange fan is provided in the air inlet cavity and installed on the fan plate. The heat exchange fan introduces air into the casing from the air inlet, and after heat exchange by the heat exchanger, it is sent out from the air outlet. An electrical box is connected to the fan plate, and the electrical box has an opening on the side away from the top plate; A first positioning part is provided on the side of the fan plate away from the heat exchange chamber. The first positioning part is provided with a fixing hole and a fixing surface away from the top plate. One end of the fixing hole is located on the fixing surface. The fixing surface is inclined towards the fan plate in the direction from the top to the bottom of the casing. The second positioning part is recessed in the first side wall of the electrical box, and the second positioning part is provided with a through hole; The first positioning part is adapted to the interior of the second positioning part so that the through hole and the fixing hole are aligned. The fastener passes through the opening and is connected to the fixing hole so that the electrical box and the fan plate are fixedly connected.

2. The duct air conditioner according to claim 1, characterized in that, An angle γ is formed between the fixed surface and the plane where the top plate is located, wherein γ ≥ 15° and γ ≤ 75°.

3. The duct air conditioner according to claim 1, characterized in that, The first positioning part is tapered in the direction from the fan plate to the electrical box.

4. The duct air conditioner according to claim 3, characterized in that, The first positioning part is a four-sided pyramid structure or a four-sided pyramid truncated structure. The second positioning part includes three side walls connected in sequence. The three limiting side walls are adapted to the corresponding three sides of the first positioning part to form a limiting structure to restrict the movement of the electrical box in three directions on the fan plate. Among the three limiting side walls, the limiting side wall away from the top plate is the second side wall, and the through hole is located on the second side wall.

5. The ductwork unit according to any one of claims 1 to 4, characterized in that, The first positioning part has a triangular cross section perpendicular to the length direction of the fan plate; on the first cross section, the maximum dimension between the first positioning part and the fan plate is H1, the length of the first positioning part on the fan plate is L, H1 / L≥0.27, H1 / L≤3.7, and the first cross section passes through the center line of the first positioning part.

6. The duct air conditioner according to claim 1, characterized in that, The first positioning part is a pressed structure on the fan plate.

7. The duct air conditioner according to claim 1, characterized in that, The fixing hole is a flanged hole, and the height dimension of the flanged hole is H2, where H2≥2mm.

8. The duct air conditioner according to claim 1, characterized in that, The first positioning part is located near the opening, the fastener is a self-tapping screw, and the diameter of the fixing hole is smaller than the diameter of the self-tapping screw.

9. The duct air conditioner according to claim 1, characterized in that, The electrical box is mounted on the top plate, and the housing also includes a bottom plate. The bottom plate and the top plate are arranged opposite each other along the height direction of the housing, and the bottom plate is provided with a clearance portion corresponding to the electrical box.

10. A ducted air conditioner, characterized in that, include: A housing having an air inlet and an air outlet, the housing including a top plate; A fan plate is disposed inside the housing to divide the internal space of the housing into an air inlet chamber and a heat exchange chamber. The air inlet is connected to the air inlet chamber, and the air outlet is connected to the heat exchange chamber. A heat exchanger is disposed in the heat exchange chamber to exchange heat with the air entering the heat exchange chamber. A heat exchange fan is provided in the air inlet cavity and installed on the fan plate. The heat exchange fan introduces air into the casing from the air inlet, and after heat exchange by the heat exchanger, it is sent out from the air outlet. An electrical box is mounted on the top plate, and the side of the electrical box away from the top plate has an opening; The first positioning part protrudes from the side of the fan plate away from the heat exchange chamber, and the first positioning part is provided with a fixing hole for fastener connection. The second positioning part is recessed into the interior of the electrical box from the first side wall of the electrical box. The second positioning part has a second side wall that is disposed away from the top plate. The second side wall is provided with a through hole. The second side wall is inclined towards the fan plate in the direction from the top to the bottom of the housing. The first positioning part is adapted to be housed inside the second positioning part so that the through hole and the fixing hole are aligned. The fastener passes through the opening and is connected to the fixing hole so that the electrical box is fixedly connected to the fan plate.

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