Electric control box, air conditioner outdoor unit and air conditioner

Abstract

The application discloses an electric control box, an air conditioner outdoor unit and an air conditioner, and relates to the technical field of air conditioner manufacturing, and aims to solve the technical problem of existing exposed wiring seat and potential safety hazards. The electric control box comprises a box body, a power wiring seat and a separation cover. The separation cover is rotatably arranged in the box body, and the separation cover is rotatable relative to the box body to a first position and a second position. In the first position, the separation cover covers the power wiring seat, thereby protecting the power wiring seat and avoiding the safety accidents caused by touching the power wiring seat when operating in the electric control box, and improving the safety and reliability of the electric control box. In the second position, the separation cover is opened, the power wiring seat is exposed, and the maintenance is facilitated. The air conditioner outdoor unit and the air conditioner disclosed by the application are internally provided with the electric control box.

Description

Technical Field

[0001] This invention relates to the field of air conditioning manufacturing technology, specifically to an electrical control box, an outdoor unit of an air conditioner, and an air conditioner. Background Technology

[0002] An air conditioner is a device that regulates parameters such as temperature, humidity, and air cleanliness of indoor air. The outdoor unit of an air conditioner contains an electrical control box that controls its operating status. This control box contains a power connector for the power cord; operating the unit near this connector could result in contact with the high voltage of the power cord, posing a safety hazard. Summary of the Invention

[0003] The main objective of this invention is to provide an electrical control box, an outdoor air conditioning unit, and an air conditioner, aiming to solve the technical problem of safety hazards caused by exposed wiring terminals in existing systems.

[0004] To achieve the above objectives, the present invention provides an electrical control box comprising: a box body, a power terminal block, and an isolation cover; the power terminal block is installed inside the box body; the isolation cover is rotatably installed inside the box body, and the isolation cover can rotate relative to the box body to a first position and a second position, wherein the isolation cover covers the power terminal block when in the first position, and exposes the power terminal block when in the second position.

[0005] The beneficial effects of this invention are as follows: The electrical control box includes a box body, a power terminal block, and an isolation cover. The isolation cover is rotatably installed inside the box body, and the isolation cover can be rotated to a first position and a second position relative to the box body. In the first position, the isolation cover covers the power terminal block, which not only protects the power terminal block but also prevents accidents caused by touching the power terminal block during operation inside the electrical control box, thereby improving the safety and reliability of the electrical control box. In the second position, the isolation cover is open, exposing the power terminal block for easy maintenance and simple and convenient operation.

[0006] Based on the above technical solution, the present invention can be further improved as follows.

[0007] Furthermore, the isolation cover includes a mounting plate and a cover body. The mounting plate is fixed inside the box, and the cover body is rotatably connected to the mounting plate. When the cover body rotates relative to the mounting plate to the first position, at least part of the cover body covers the power terminal block. When the cover body rotates relative to the mounting plate to the second position, the power terminal block is exposed.

[0008] Furthermore, the mounting plate and the cover are rotatably connected by a flexible connecting part, and the mounting plate, the flexible connecting part, and the cover are integrally formed as a single piece.

[0009] Furthermore, the flexible connecting part is a plate, one end of the plate is connected to the mounting plate, and the other end of the plate is connected to the cover; the plate includes a first surface and a second surface opposite to each other, the first surface is provided with a groove recessed toward the second surface, and the bottom wall of the groove is formed with a rotation crease.

[0010] Furthermore, the thickness of the rotation crease is 0.3–0.6 mm.

[0011] Furthermore, when the electrical control box is hung on the casing of the outdoor unit of the air conditioner, the extension direction of the rotation crease is perpendicular to the ground, and the free end of the cover flips left and right relative to the rotation crease.

[0012] Furthermore, the first surface is provided with at least one first reinforcing plate, the first end of the first reinforcing plate is connected to the cover body, and the second end of the first reinforcing plate extends to the rotation crease; and / or, the first surface is provided with at least one second reinforcing plate, the first end of the second reinforcing plate is connected to the mounting plate, and the second end of the second reinforcing plate extends to the rotation crease.

[0013] Furthermore, the cover is rectangular in shape, and the rotation crease extends along the length of the cover, or the rotation crease extends along the width of the cover.

[0014] Furthermore, the cover includes a first top plate and a first side plate surrounding the edge of the first top plate, the outer side of the first side plate being rotatably connected to the mounting plate; when the cover is rotated to the first position, at least a portion of the end face of the first side plate abuts against the mounting plate; a mesh-like reinforcing rib is provided in at least a portion of the space defined by the first side plate and the first top plate.

[0015] Furthermore, the first side panel is provided with a first limiting plate, and the first limiting plate is provided with a first protrusion; the mounting plate is provided with a second limiting plate and an avoidance opening for avoiding the first limiting plate, and the second limiting plate is provided with a second protrusion; when the cover is rotated to the second position, the second protrusion abuts against the first protrusion.

[0016] Furthermore, the electrical control box also includes a support plate and a main board; the support plate and the main board are installed inside the box, and the main board is installed on the support plate, the support plate is provided with an installation port that exposes the power terminal block; the mounting plate is fixedly connected to the support plate, and the free end of the cover is detachably connected to the support plate.

[0017] Furthermore, the free end of the cover is provided with a first buckle extending downward, which engages with the support plate; and / or, the free end of the cover is provided with a handle extending upward.

[0018] Furthermore, the mounting plate is provided with a second buckle that engages with the support plate and a threaded hole that screws into the support plate.

[0019] Furthermore, the box is a sealed box.

[0020] The present invention also provides an outdoor unit for an air conditioner, including a housing and the aforementioned electrical control box, wherein the electrical control box is installed inside the housing.

[0021] The beneficial effects of the outdoor unit of the air conditioner of the present invention are the same as those of the above-mentioned electrical control box, and will not be repeated here.

[0022] The present invention also provides an air conditioner, comprising: an indoor unit and the aforementioned outdoor unit, wherein the outdoor unit and the indoor unit are connected by a pipeline for supplying heat exchange medium.

[0023] The beneficial effects of the air conditioner of the present invention are the same as those of the above-mentioned electrical control box, and will not be repeated here. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 An exploded view of the electrical control box body, fixing plate, and heat sink provided in an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the electrical control box structure with the top side panel removed, provided in an embodiment of the present invention.

[0027] Figure 3 A schematic diagram of the support plate and isolation cover of the electrical control box provided in an embodiment of the present invention;

[0028] Figure 4 for Figure 3 Enlarged view of region A in the middle;

[0029] Figure 5 This is a schematic diagram of the structure of the isolation cover provided in an embodiment of the present invention;

[0030] Figure 6 for Figure 5 Enlarged view of region B in the middle;

[0031] Figure 7 This is a schematic diagram of the structure of the isolation cover at the second position according to an embodiment of the present invention;

[0032] Figure 8 for Figure 7 Enlarged view of region C in the middle;

[0033] Figure 9 This is a schematic diagram of the structure of the isolation cover in a first position and direction provided in an embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of the structure of the isolation cover in another direction at the first position, as provided in an embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram of the structure of the isolation cover in a first position and another direction provided in an embodiment of the present invention;

[0036] Figure 12 for Figure 11 A magnified diagram of region D in the middle.

[0037] Explanation of icon numbers:

[0038] 100: Box body; 110: Bottom side panel; 120: Top side panel; 130: Front side panel; 140: Rear side panel; 150: Left side panel; 160: Right side panel;

[0039] 200: Power connector; 300: Isolation cover;

[0040] 310: Mounting plate; 311: Second top plate; 3111: Clearance opening; 312: Second side panel; 3121: Long side panel; 3122: Wide side panel; 313: Guide post; 314: Mounting platform; 3141: Threaded hole; 315: Second limiting plate; 3151: Second protrusion; 316: Fifth reinforcing plate;

[0041] 320: Cover; 321: First top plate; 322: First side panel; 3221: First side plate; 32211: First plate portion; 32212: Second plate portion; 3222: First end plate; 3223: Second end plate; 323: Reinforcing rib; 324: First limiting plate; 3241: First protrusion; 325: Partition plate; 326: Recessed groove;

[0042] 330: Plate body; 331: First surface; 332: Second surface; 333: Groove; 334: Rotation crease; 335: First reinforcing plate; 336: Second reinforcing plate;

[0043] 340: First buckle; 350: Handle; 351: Vertical plate; 352: Inclined plate; 353: Third reinforcing plate; 360: Second buckle; 361: Connecting arm; 362: Clip connector; 363: Fourth reinforcing plate;

[0044] 400: Support plate; 410: Mounting port; 420: First bayonet; 430: Second bayonet; 440: Connecting hole; 450: Receiving port; 460: Snap-fit ​​protrusion;

[0045] 510: Motherboard; 520: Expansion board; 530: Control board; 700: Mounting board; 800: Heatsink. Detailed Implementation

[0046] In related technologies, the electrical control box contains a power terminal block for connecting power cords. This power terminal block connects to high-voltage electricity via the power cord and supplies power to the live components of the outdoor unit of the air conditioner. The power terminal block is typically exposed inside the electrical control box for easy wiring. However, the inventors discovered that during the assembly of the electrical control box, the exposed power terminal block makes it easy for tools to touch and damage it. Furthermore, when operating near the power terminal block, such as when connecting communication cables to the main board above it, there is a risk of electric shock from contact with the high voltage, posing a safety hazard.

[0047] In view of this, the electrical control box of the present invention is provided with an isolation cover, which can cover the power terminal block, thereby protecting the power terminal block and preventing electric shock from touching the power terminal block, thus improving the safety of the electrical control box.

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0049] This invention provides an air conditioner comprising an outdoor unit and one or more indoor units, wherein the outdoor unit and all indoor units are connected via pipelines for the flow of heat exchange medium. This air conditioner can, for example, function as a central air conditioning system.

[0050] An air conditioner outdoor unit typically includes a casing and an electrical control box installed inside the casing. It can cool a high-temperature heat exchange medium to create a low-temperature heat exchange medium. This low-temperature heat exchange medium then enters the indoor unit through pipes to exchange heat with the indoor air, thus lowering the indoor air temperature. The high-temperature heat exchange medium, after heat exchange in the indoor unit, returns to the outdoor unit to cool down before flowing back to the indoor unit, repeating this cycle to achieve the cooling purpose. Alternatively, the outdoor unit can also heat a low-temperature heat exchange medium to create a high-temperature heat exchange medium. This high-temperature heat exchange medium enters the indoor unit through pipes to exchange heat with the indoor air, thus raising the indoor air temperature. The low-temperature heat exchange medium, after heat exchange in the indoor unit, then returns to the outdoor unit to warm up before flowing back to the indoor unit, repeating this cycle to achieve the heating purpose.

[0051] The electrical control box can be installed inside the casing using screws, clips, or hooks, and is used to control the operating status of the outdoor unit of the air conditioner. For example, the electrical control box can control the speed of the fan assembly in the outdoor unit to improve the heat exchange of the heat exchange medium.

[0052] Figure 1 This is an exploded view of the electrical control box body, fixing plate, and heat sink provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the electrical control box provided in an embodiment of the present invention, with the top side panel removed.

[0053] like Figure 1 As shown, the electrical control box provided in this embodiment includes a box body 100, a fixing plate 700, and a heat sink 800. The box body 100 has a receiving cavity for installing the fixing plate 700, the heat sink 800, and electrical components, etc.

[0054] For example, the box body 100 can be a rectangular box body, which includes a bottom side panel 110, a top side panel 120, a front side panel 130, a rear side panel 140, a left side panel 150, and a right side panel 160. Figure 1 For example, the left side plate 150 and the right side plate 160 both extend along the Y direction, and the left side plate 150 and the right side plate 160 are spaced apart along the X direction; the rear side plate 140 is located at the rear end of the left side plate 150 and the right side plate 160, thus forming a semi-shell structure with openings at the front end and the top end. In some embodiments, the rear side plate 140, the left side plate 150, and the right side plate 160 and the bottom side plate 110 can be integrally formed by processes such as molding or stamping.

[0055] The front side plate 130 can be fixed to the front side of the bottom side plate 110 by means of bolts, screws, clips, etc. Both the front side plate 130 and the rear side plate 140 extend along the X direction, and the front side plate 130 and the rear side plate 140 are spaced apart along the Y direction.

[0056] The top side plate 120 is opposite to the bottom side plate 110. The top side plate 120 can also be fixed to the top of the front side plate 130, the rear side plate 140, the left side plate 150 and the right side plate 160 by means of bolts, screws, clips, etc.

[0057] It should be noted that the housing 100 is a sealed housing, and the accommodating cavity of the housing 100 is a sealed chamber. This not only helps protect the electrical components of the housing 100 but also prevents external heat from affecting the heat dissipation of the electrical components. For example, during assembly, sealant and sealing rings can be used to seal the bottom side plate 110, top side plate 120, front side plate 130, rear side plate 140, left side plate 150, and right side plate 160 mentioned above, thereby forming a sealed accommodating cavity within the housing 100. This design enables the electrical control box to achieve waterproof and dustproof performance, allowing it to operate normally even in harsh outdoor environments, improving the reliability of the electrical control box and extending its service life.

[0058] Of course, the shape of the box 100 is not limited to the rectangle mentioned above; it can also be other shapes. For example, the box 100 can also be a cylindrical box or an irregularly shaped box. In addition, when assembling the electrical control box inside the casing of the outdoor unit of the air conditioner, any suitable surface can be used for fixing. For example, the rear side panel 140 of the electrical control box can be hung inside the casing of the outdoor unit, or its bottom side panel 110 can be fixed inside the casing.

[0059] The electrical control box in this embodiment of the invention can be, for example, a sealed electrical control box. This can prevent water droplets, dust, and other foreign objects from entering the electrical control box and damaging the electronic components inside, thus achieving the effects of waterproofing, dustproofing, and corrosion resistance.

[0060] The fixing plate 700 is secured to the box body 100 by screws or clips. Figure 1 From the perspective of the mounting plate 700, it has an upper mounting surface and a lower mounting surface, with the lower mounting surface facing the bottom side plate 110 and the upper mounting surface facing the top side plate 120. The mounting plate 700 can be a rectangular plate, which is arranged parallel to the bottom side plate 110 and the top side plate 120 of the housing 100. The mounting plate 700 divides the accommodating cavity into an upper cavity and a lower cavity, with the upper mounting surface located in the upper cavity and the lower mounting surface located in the lower cavity.

[0061] Combination Figure 2 The electrical control box in this embodiment also includes a power terminal block 200, a main board 510, an expansion board 520, and a control board 530. The main board 510 is used to connect the control board 530, the expansion board 520, and sensors, etc., and can control the working status of the outdoor unit of the air conditioner. The expansion board 520 is connected to the devices that the user needs to expand via cables. The control board 530 is equipped with a fan module and a compressor module for controlling the fan and compressor of the outdoor unit of the air conditioner.

[0062] The power connector 200, main board 510, expansion board 520, and control board 530 are all mounted on the upper mounting surface of the fixed plate 700, with the power connector 200 located between the main board 510 and the front side plate 130. The main board 510, expansion board 520, and control board 530 are arranged side by side along the X direction.

[0063] The heat sink 800 is located inside the upper cavity and can dissipate the heat generated by the electrical components inside the housing 100. The heat sink 800 is fixedly connected to the side wall of the upper cavity. For example, the heat sink 800 can be installed on the side plate of the housing 100 that forms the upper cavity, or it can be installed on the fixing plate 700. In this embodiment, the heat sink 800 is installed on the upper mounting surface, and it can be installed on the upper mounting surface by snap-fit, screw connection, or other methods. The heat generated by electrical components such as the power connector 200, main board 510, expansion board 520, and control board 530 is transferred to the heat sink 800 through the fixing plate 700, and the heat sink 800 dissipates the heat, reducing the heat inside the electrical control box.

[0064] In this embodiment of the invention, the radiator 800 can be a microchannel heat exchanger. The microchannel heat exchanger includes at least two sets of microchannels. The at least two sets of microchannels include a plurality of first microchannels for a first refrigerant flow and a plurality of second microchannels for a second refrigerant flow, wherein the second refrigerant flow absorbs heat from the first refrigerant flow to subcool the first refrigerant flow, or the first refrigerant flow absorbs heat from the second refrigerant flow to subcool the second refrigerant flow.

[0065] The microchannel heat exchanger of this invention can also be used as an economizer in an air conditioner. Thus, the microchannel heat exchanger can be used to cool electronic components inside the control box and also as an economizer, thereby avoiding the need for an additional economizer outside the control box, simplifying the air conditioner's structure, saving space, and reducing costs.

[0066] The electrical control box provided in this embodiment also includes an isolation cover 300. The isolation cover 300 is rotatably installed inside the box body 100. The isolation cover 300 can be directly rotatably connected to the box body 100, or it can be indirectly rotatably connected to the box body 100 through the support plate 400 described below.

[0067] The isolation cover 300 can be connected to the box body 100 by a hinge, so that the isolation cover 300 can rotate relative to the box body 100; or, both the isolation cover 300 and the box body 100 are provided with a pivot hole, and the pivot is inserted in the pivot hole of the isolation cover 300 and the box body 100, so that the isolation cover 300 can rotate relative to the box body 100.

[0068] The isolation cover 300 can rotate relative to the housing 100 to a first position and a second position. When the isolation cover 300 is rotated to the first position, at least a portion of the isolation cover 300 can cover the power terminal block 200. When the isolation cover 300 is rotated to the second position, the isolation cover 300 opens to expose the power terminal block 200, thereby enabling maintenance and other operations on the power terminal block 200.

[0069] Continue to refer to Figure 2 The electrical control box in this embodiment of the invention also includes a support plate 400, which is mounted on a fixed plate 700. A gap exists between the lower surface of the support plate 400 and the fixed plate 700 for cables to pass through, such as the power cord connecting the power terminal block 200, which passes through this gap to supply power to other electrical components. The upper surface of the support plate 400 is used to mount the mainboard 510.

[0070] Figure 3 This is a schematic diagram of the support plate and isolation cover of the electrical control box provided in an embodiment of the present invention. Figure 3 As shown, a portion of the support plate 400 in this embodiment is used to mount the motherboard 510, and another portion of the support plate 400 is provided with a mounting port 410 to expose the terminals of the power connector 200 for connecting the power cord.

[0071] This embodiment of the invention uses the example of an isolation cover 300 mounted on a support plate 400 to cover a power terminal block 200, but this is not limiting. The isolation cover 300 provided in this embodiment of the invention can also be mounted on a fixing plate 700 or on a mounting structure on which the power terminal block 200 is mounted, to achieve the purpose of covering the power terminal block 200.

[0072] from Figure 3 From the perspective of this embodiment, the left end of the isolation cover 300 is fixed on the support plate 400 on the left side of the mounting port 410, and at least a part of the structure of the isolation cover 300 can rotate relative to the support plate 400 around the Y direction to expose or cover the power mounting base 200. Figure 3 The diagram shows the state in which the isolation cover 300 covers the power mounting base 200. At this time, the right end of the isolation cover 300 is detachably mounted on the support plate 400 on the right side of the mounting port 410.

[0073] The structure and function of the isolation cover 300 according to an embodiment of the present invention are described in detail below.

[0074] Figure 5 This is a schematic diagram of the structure of the isolation cover provided in an embodiment of the present invention; Figure 6 for Figure 5 Enlarged schematic diagram of region B in the middle. Figure 7 This is a schematic diagram of the structure of the isolation cover at the second position according to an embodiment of the present invention; Figure 8 for Figure 7 Enlarged view of region C in the middle; Figure 9 This is a schematic diagram of the structure of the isolation cover in a first position and direction provided in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the isolation cover in another direction at the first position, as provided in an embodiment of the present invention; Figure 11 This is a schematic diagram of the structure of the isolation cover in a first position and another direction provided in an embodiment of the present invention; Figure 12 for Figure 11 A magnified diagram of region D in the middle.

[0075] Combination Figure 5 and Figure 6 The isolation cover 300 of this embodiment includes a mounting plate 310 and a cover body 320, wherein the mounting plate 310 is fixedly connected to a support plate inside the box body 100, thereby installing the isolation cover 300 inside the box body 100.

[0076] The cover 320 is rotatably connected to the mounting plate 310, and the cover 320 can rotate relative to the mounting plate 310 to cover or open the power terminal block 200. The cover 320 can rotate to a first position and a second position.

[0077] Combination Figures 9 to 12 When the cover 320 is in the first position, at least a portion of the cover 320 covers the power terminal block 200. At this time, the power terminal block 200 is hidden under the cover 320, which protects the power terminal block 200 and prevents electric shock from contact with it. The cover 320 rotates relative to the mounting plate 310 toward the power terminal block 200, and when the free end of the cover 320 contacts the support plate 400, the cover 320 is in the first position. The free end of the cover 320 is detachably connected to the support plate 400, thereby maintaining the cover 320 in the first position.

[0078] Combination Figure 2 , Figure 7 and Figure 8 When the cover 320 is in the second position, the power connector 200 is exposed within the mounting opening 410 of the support plate 400, allowing for wiring, maintenance, and other operations. When the free end of the cover 320 is detached from the support plate 400, and the cover 320 is rotated relative to the mounting plate 310 away from the power connector 200, until a certain angle is formed between the cover 320 and the support plate 400, the power connector 200 is exposed within the mounting opening 410 of the support plate 400, and the cover 320 is in the second position. The cover 320 and the mounting plate 310 are abutted by the first limiting plate 324 and the second limiting plate 315, which will be described later, holding the cover 320 in the second position.

[0079] It is understandable that the free end of the cover 320 refers to the end of the cover 320 away from the mounting plate 310. Figure 5In the view shown, the free end of the cover 320 refers to the right end of the cover 320, while the left end of the cover 320 is rotatably connected to the mounting plate 310.

[0080] In this embodiment, the isolation cover 300 is mounted on the support plate 400 by setting the mounting plate 310. The power terminal block 200 can be opened or covered by rotating the cover 320 relative to the mounting plate 310. The operation is simple and convenient. When the cover 320 is opened, the mounting plate 310 is still mounted on the support plate 400, so there is no need to worry about the isolation cover 300 being lost.

[0081] In this embodiment, the mounting plate 310 and the cover 320 are rotatably connected by a flexible connecting part, and the mounting plate 310, the flexible connecting part, and the cover 320 are integrally formed as a single piece. At this time, the cover 320 can rotate relative to the mounting plate 310 by utilizing the deformation of the flexible connecting part.

[0082] For example, the isolation cover 300 can be injection molded into a single piece using materials such as polypropylene (PP), polyethylene (PE), and polyvinyl chloride (PVC). The isolation cover 300 can also be made of other plastic materials.

[0083] This design results in a simple and easy-to-manufacture isolation cover 300, which helps reduce the cost of the electrical control box.

[0084] Continue to refer to Figure 5 and Figure 6 The flexible connecting part is a plate 330, which extends along the Y direction. The left side of the plate 330 connects to the mounting plate 310, and the right side connects to the cover 320. The plate 330, mounting plate 310, and cover 320 are a single injection-molded component. The thickness of the plate 330, i.e., its dimension along the Z direction, is smaller than the dimensions of the mounting plate 310 and cover 320 along the Z direction. This allows the cover 320 to rotate relative to the mounting plate 310 by deforming the plate 330.

[0085] Plate 330 includes opposing first surface 331 and second surface 332, in Figure 6 From the perspective of the first surface 331, it is the top surface, and the second surface 332 is the bottom surface. The first surface 331 is recessed towards the second surface 332 to form a groove 333, and the bottom wall of the groove 333 has a rotation crease 334. The groove 333 can be a V-shaped groove, an arc-shaped groove, or a trapezoidal groove. The specific shape of the groove 333 is not limited in this embodiment of the invention.

[0086] In this embodiment, a groove 333 is provided in the plate 330 to form a rotation crease 334, so that the cover 320 can rotate relative to the mounting plate 310 at the rotation crease 334, ensuring smooth opening and closing.

[0087] In this embodiment, the thickness of the rotation crease 334, that is, the dimension of the bottom wall of the groove 333 along the Z direction, can be 0.3 to 0.6 mm. This avoids the cover 320 from separating from the mounting plate 310 if the thickness of the rotation crease 334 is too small, and avoids the cover 320 from rotating relative to the mounting plate 310 if the thickness of the rotation crease 334 is too large.

[0088] Combination Figure 2 , Figure 3 and Figure 5 The power connector 200 is a long strip structure extending along the X direction; the cover 320 in this embodiment is rectangular, the length direction of the cover 320 is the X direction in the figure, the width direction of the cover 320 is the Y direction in the figure, and the thickness direction of the cover 320 is the Z direction in the figure.

[0089] exist Figure 5 and Figure 6 In the structure shown, the groove 333 extends along the Y direction, the rotation crease 334 extends along the Y direction, and the cover 320 rotates relative to the mounting plate 310 about the Y direction. At this time, the mounting plate 310 is located at the left end of the cover 320, and... Figure 3 From the perspective of the center, the cover can be flipped open or covered by the power connector 200 by rotating it around 320 degrees.

[0090] Of course, this is not limiting. In some embodiments, combining Figure 2 and Figure 3 From this perspective, the mounting plate 310 is located at the upper end of the cover 320, and the cover 320 can be flipped up and down to open or cover the power terminal 200. At this time, the groove 333 extends along the X direction, the rotation crease 334 extends along the X direction, and the cover 320 rotates relative to the mounting plate 310 around the X direction.

[0091] However, the above two methods do not constitute a limitation on the rotation direction of the isolation cover 300 in the embodiments of the present invention. The cover body 320 of the isolation cover 300 can also rotate in other directions other than the X and Y directions.

[0092] In some possible embodiments, combined Figure 2 and Figure 6When the control box is mounted on the casing of the outdoor unit of the air conditioner, for example, when the rear panel 140 is mounted on the casing, the rear panel 140 is parallel to the ground; the extension direction of the rotation crease 334 is perpendicular to the ground. At this time, the free end of the cover 320 flips left and right relative to the rotation crease 334, making operation simple and convenient. Of course, this is not a limitation. When the control box is mounted on the casing of the outdoor unit of the air conditioner, the extension direction of the rotation crease 334 is parallel to the ground. At this time, the free end of the cover 320 flips up and down relative to the rotation crease 334.

[0093] It should be noted that the free end of the cover 320 is the end of the cover 320 away from the rotation crease 334. In the first position, the free end of the cover 320 is fixed on the support plate 400.

[0094] Compared to the thickness of the mounting plate 310 and the cover 320, the thickness of the plate 330 is smaller. In order to increase the structural strength of the plate 330, a reinforcing structure is provided on the plate 330.

[0095] Combination Figure 6 The rotation of crease 334 divides the first surface 331 into two parts; then combined with... Figure 11 and Figure 12 When the cover 320 is in the first position, the first surface 331 on one side of the rotation crease 334 forms the upper surface, and the first surface 331 on the other side of the rotation crease 334 forms the lower surface. At this time, the second surfaces 332 on both sides of the rotation crease 334 are in contact.

[0096] exist Figure 12 From the perspective of rotation crease 334, the first surface 331 on the upper side of the rotation crease 334 is provided with at least one first reinforcing plate 335 connected to the cover 320. The first end of the first reinforcing plate 335 is connected to the cover 320, and the second end of the first reinforcing plate 335 extends to the rotation crease 334. The first reinforcing plate 335 can be a right-angled triangle, with one right-angled side connected to the first surface 331 and the other right-angled side connected to the cover 320. Multiple first reinforcing plates 335 can be provided, such as three, and these multiple first reinforcing plates 335 are spaced apart along the Y direction. The shape and number of the first reinforcing plates 335 in this embodiment of the invention are not limited to the above example.

[0097] The first surface 331 of the lower portion of the rotation crease 334 is provided with at least one second reinforcing plate 336 connected to the mounting plate 310. The first end of the second reinforcing plate 336 is connected to the mounting plate 310, and the second end of the second reinforcing plate 336 extends to the rotation crease 334. The second reinforcing plate 336 can be a right-angled triangle, with one right-angled side connected to the first surface 331 and the other right-angled side connected to the mounting plate 310. Multiple second reinforcing plates 336, such as three, are provided, spaced apart along the Y direction. The shape and number of the second reinforcing plates 336 in this embodiment are not limited to the above example.

[0098] This embodiment improves the structural strength of the plate 330 by providing a first reinforcing plate 335 between the first surface 331 and the cover 320, and a second reinforcing plate 336 between the first surface 331 and the mounting plate 310, thereby improving the structural strength and service life of the isolation cover 300.

[0099] Combination Figure 7 In this embodiment, the cover 320 includes a first top plate 321 and a first side plate 322. The first side plate 322 surrounds the edge of the first top plate 321 and extends downward.

[0100] The first side panel 322 includes two first side panels 3221, a first end panel 3222, and a second end panel 3223. The first side panels 3221 extend along the X direction, and the two first side panels 3221 are spaced apart from each other along the Y direction. The right ends of the two first side panels 3221 are connected to the second end panel 3223, and the left ends of the two first side panels 3221 are connected to the first end panel 3222.

[0101] The first side plate 3221 includes a first plate portion 32211 and a second plate portion 32212 connected to each other. The two first plate portions 32211 are connected to a first end plate 3222, and the two second plate portions 32212 are connected to a second end plate 3223. The dimension of the first plate portion 32211 along the Z-direction is smaller than the dimension of the second plate portion 32212 along the Z-direction, and the dimension of the first end plate 3222 along the Z-direction is the same as the dimension of the first plate portion 32211 along the Z-direction. Thus, the end faces of the two first plate portions 32211 and the first end plate 3222 are lower than the end face of the second plate portion 32212. Figure 9 and Figure 12 When the cover 320 is in the first position, the end faces of the first plate portion 32211 and the first end plate 3222 are both in contact with the mounting plate 310, so that at least a portion of the end face of the first side plate 322 is in contact with the mounting plate 310, thereby restricting the rotation position of the cover 320.

[0102] Combination Figure 7 and Figure 11The outer side of the first end plate 3222 of the first side panel 322 is rotatably connected to the mounting plate 310, that is, the plate body 330 is located between the outer side of the first end plate 3222 and the mounting plate 310.

[0103] Continue to refer to Figure 7 and Figure 10 A mesh-like reinforcing rib 323 is provided within at least a portion of the space defined by the first side panel 322 and the first top panel 321. Schematably, a partition plate 325 is also provided below the first top panel 321. The partition plate 325 extends along the Y direction and is connected to the ends of two second plate portions 32212 near the first plate portion 32211. The partition plate 325, the two second plate portions 32212, and the second end plate 3223 have the same dimensions along the Z direction. The partition plate 325, the two second plate portions 32212, and the second end plate 3223 form an annular frame, and the mesh-like reinforcing rib 323 is located within the space defined by this annular frame and the first top panel 321 inside it. Furthermore, the portion of the cover 320 with the mesh-like reinforcing rib 323 is used to shield the power terminal block 200.

[0104] Combination Figure 7 and Figure 10 The mesh-like reinforcing ribs 323 include multiple ribs extending along the X direction and multiple ribs extending along the Y direction. The multiple ribs extending along the X direction are spaced apart along the Y direction, and the multiple ribs extending along the Y direction are spaced apart along the X direction, forming a grid-like reinforcing rib 323. The extension direction of the reinforcing ribs 323 is not limited to the X and Y directions.

[0105] This embodiment improves the structural strength of the cover 320 by setting a mesh-like reinforcing rib 323, which is beneficial to improving the service life of the isolation cover 300.

[0106] Continue to refer to Figure 9 A recessed groove 326 is provided on the side of the first top plate 321 opposite to the reinforcing rib 323 for attaching and positioning flat parts, for example, attaching a label to the recessed groove 326.

[0107] Reference Figure 7 and Figure 8 A first limiting plate 324 is provided on one of the first plate portions 32211 of the first side panel 322, and a first protrusion 3241 is provided on the first limiting plate 324. A second limiting plate 315 is provided on the mounting plate 310, and a second protrusion 3151 is provided on the second limiting plate 315. When the cover 320 is in the second position, the second protrusion 3151 abuts against the first protrusion 3241 to keep the cover 320 in the second position. Figure 8From the perspective of the first protrusion 3241, the right end of the first protrusion 3241 abuts against the left end of the second protrusion 3151 to prevent the cover 320 from rotating and covering the power terminal 200, so that the cover 320 is kept in the second position for easy maintenance of the power terminal 200.

[0108] Continue to refer to Figure 8 The mounting plate 310 is provided with an avoidance opening 3111, which avoids the first limiting plate 324 when the cover 320 is in the first position. Figure 9 and Figure 10 When the cover 320 is in the first position, the first limiting plate 324 passes through the clearance opening 3111 and protrudes from the clearance opening 3111; continue referring to Figure 3 and Figure 4 The support plate 400 is provided with a receiving opening 450, and the first limiting plate 324 that passes through the clearance opening 3111 is inserted into the receiving opening 450.

[0109] Reference Figure 5 , Figure 9 as well as Figure 11 The free end of the cover 320 is provided with an upwardly extending handle 350 for easy opening and closing of the cover 320. Exemplarily, the handle 350 includes a vertical plate portion 351 and an inclined plate portion 352 connected together. The vertical plate portion 351 is fixed to the end of the first top plate 321 away from the mounting plate 310, and the inclined plate portion 352 is inclined away from the mounting plate 310, with an obtuse angle between the inclined plate portion 352 and the vertical plate portion 351. Furthermore, to increase the stability of the connection between the handle 350 and the first top plate 321, at least one third reinforcing plate 353 is provided between the vertical plate portion 351 and the first top plate 321. For example, two third reinforcing plates 353 are spaced apart along the Y direction between the vertical plate portion 351 and the first top plate 321.

[0110] To achieve a detachable connection between the free end of the cover 320 and the support plate 400, the free end of the cover 320 and the support plate 400 can be connected by screws, or the free end of the cover 320 can be snapped into the support plate 400. (Illustrative illustration, combined with...) Figure 5 and Figure 11 The free end of the cover 320 is provided with a first buckle 340 extending downwards, and the first buckle 340 is connected to the first top plate 321. Figure 4 The support plate 400 is provided with a first latch 420. When the cover 320 is in the first position, the first buckle 340 passes through the first latch 420 and engages with the support plate 400, thereby fixing the free end of the cover 320 to the support plate 400, so that the cover 320 is kept in the first position.

[0111] Reference Figure 10In this embodiment, the mounting plate 310 includes a second top plate 311 and a second side plate 312 that surrounds the edge of the second top plate 311 and extends downward. The second top plate 311 is a rectangular plate, and the second side plate 312 is a rectangular ring frame. The second side plate 312 includes two long side plates 3121 and two wide side plates 3122. The two long side plates 3121 extend along the Y direction and are spaced apart along the X direction; the two wide side plates 3122 extend along the X direction and are spaced apart along the Y direction. One of the wide side plates 3122 extends upward to form a second limiting plate 315.

[0112] In order to achieve a fixed connection between the mounting plate 310 and the support plate 400, the mounting plate 310 is provided with a threaded hole 3141 that is screwed to the support plate 400 and a second buckle 360 ​​that is snapped into the support plate 400. The threaded hole 3141 and the second buckle 360 ​​are both provided on the second top plate 311 and are located inside the second side panel 312.

[0113] Combination Figure 10 and Figure 12 A second latch 360 is provided below the second top plate 311. The second latch 360 includes a connecting arm 361 and a latching head 362. The connecting arm 361 is connected to the second top plate 311 and the latching head 362 respectively. Figure 4 The support plate 400 is provided with a second latch 430, and a snap-fit ​​protrusion 460 is provided on one side of the second latch 430. The connecting arm 361 and the snap-fit ​​connector 362 pass through the second latch 430, and the snap-fit ​​connector 362 snaps into the snap-fit ​​protrusion 460, thereby fixing the mounting plate 310 to the support plate 400. In order to improve the stability of the connection of the second latch 360, at least one fourth reinforcing plate 363 is provided between the connecting arm 361 and the second top plate 311. For example, two fourth reinforcing plates 363 are provided at intervals along the X direction between the connecting arm 361 and the second top plate 311.

[0114] To ensure stable engagement between the mounting plate 310 and the support plate 400, two second latches 360 are provided, with their locking contacts 362 positioned opposite each other. Figure 4 The support plate 400 is provided with two second latches 430, and one latching protrusion 460 is located on the side of the second latch 430 away from the other second latch 430, while the other latching protrusion 460 is located on the side of its corresponding second latch 430 away from the other second latch 430. By providing two second latches 360, the stability and reliability of the latching between the mounting plate 310 and the support plate 400 are improved.

[0115] To improve the ease of engaging the second snap-fit ​​360, a guide post 313 is provided on the second top plate 311. The guide post 313 is located between the two second snap-fits 360 and is mounted on the mounting platform 314. Correspondingly, the support plate 400 is provided with mating holes that cooperate with the guide post 313. The guide post 313 cooperates with the mating holes to provide guidance; the cooperation between the guide post 313 and the mating holes also serves to limit the engagement, improving the stability and reliability of the engagement between the mounting plate 310 and the support plate 400.

[0116] To prevent the mounting plate 310 from detaching from the support plate 400 under stress, the mounting plate 310 is also screwed onto the support plate 400. Figure 10 A protruding mounting platform 314 is provided below the second top plate 311. The mounting platform 314 can be a rectangular boss, a circular boss, etc. A threaded hole 3141 is provided on the mounting platform 314. (Combined with...) Figure 4 The support plate 400 is provided with a connection hole 440. Screws, bolts and other fasteners are threaded to the threaded hole 3141 and the connection hole 440 respectively, thereby fixing the mounting plate 310 on the support plate 400.

[0117] Continue to refer to Figure 10 To improve the structural strength of the mounting plate 310, a fifth reinforcing plate 316 is also provided on the second top plate 311. The fifth reinforcing plate 316 is located inside the second side panel 312. The fifth reinforcing plate 316 extends along the X direction, and multiple fifth reinforcing plates 316 are provided at intervals along the Y direction.

[0118] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0119] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0120] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0121] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electric control box, characterized by, include: Box body, power terminal block, and isolation cover; The power connector is installed inside the box. The isolation cover is rotatably mounted inside the housing, and the isolation cover can rotate relative to the housing to a first position and a second position. When the isolation cover is in the first position, it covers the power connector; when the isolation cover is in the second position, it exposes the power connector. The isolation cover includes a mounting plate and a cover body. The mounting plate is fixed inside the housing, and the cover body is rotatably connected to the mounting plate via a flexible connection. The power terminal block can be opened or covered by rotating the cover body relative to the mounting plate. The flexible connecting part is a plate, which includes a first surface and a second surface facing each other. The first surface has a groove recessed towards the second surface, and the bottom wall of the groove has a rotation crease. When the cover of the isolation cover is in the first position, the first surface on one side of the rotation crease forms an upper surface, and the first surface on the other side of the rotation crease forms a lower surface. At this time, the second surfaces on both sides of the rotation crease are in contact. The electrical control box also includes a support plate, which is installed inside the box. The support plate has an installation port that exposes the power terminal block. The mounting plate is fixedly connected to the support plate. The free end of the cover is detachably connected to the support plate. The mounting plate has a second buckle that engages with the support plate and a threaded hole that screws into the support plate.

2. The electric control box according to claim 1, wherein When the cover rotates relative to the mounting plate to the first position, at least part of the cover covers the power connector; when the cover rotates relative to the mounting plate to the second position, the power connector is exposed.

3. The electric control box according to claim 2, wherein The mounting plate, the flexible connecting part, and the cover are integrally formed as a single piece.

4. The electric control box according to claim 3, wherein One end of the plate is connected to the mounting plate, and the other end of the plate is connected to the cover.

5. The electric control box according to claim 4, wherein The thickness of the rotation crease is 0.3 to 0.6 mm.

6. The electric control box according to claim 4, wherein When the electrical control box is hung on the casing of the outdoor unit of the air conditioner, the extension direction of the rotation crease is perpendicular to the ground, and the free end of the cover flips left and right relative to the rotation crease.

7. The electric control box according to claim 4, wherein The first surface is provided with at least one first reinforcing plate, a first end of the first reinforcing plate being connected to the cover body, and a second end of the first reinforcing plate extending to the rotation crease; and / or, The first surface is provided with at least one second reinforcing plate, the first end of the second reinforcing plate is connected to the mounting plate, and the second end of the second reinforcing plate extends to the rotation crease.

8. The electrically controlled box according to claim 4, wherein, The cover is rectangular in shape, and the rotation crease extends along the length of the cover or along the width of the cover.

9. The electric control box according to any one of claims 2-8, characterized in that, The cover includes a first top plate and a first side plate surrounding the edge of the first top plate, and the outer side of the first side plate is rotatably connected to the mounting plate. When the cover is rotated to the first position, at least a portion of the end face of the first side panel abuts against the mounting plate; The space defined by the first side panel and the first top panel is provided with a mesh of reinforcing ribs.

10. The electric control box according to claim 9, wherein The first side panel is provided with a first limiting plate, and the first limiting plate is provided with a first protrusion; The mounting plate is provided with a second limiting plate and an avoidance opening for avoiding the first limiting plate, and the second limiting plate is provided with a second protrusion; When the cover is rotated to the second position, the second protrusion abuts against the first protrusion.

11. The electric control box according to any one of claims 2-8, characterized in that, The electrical control box also includes a motherboard; the motherboard is installed inside the box and mounted on the support plate.

12. The electric control box according to claim 11, wherein The free end of the cover is provided with a first buckle, which engages with the support plate.

13. The electric control box according to any one of claims 1 to 8, characterized in that, The box is a sealed box.

14. An air conditioner outdoor unit, characterized by comprising: It includes a housing and an electrical control box as described in any one of claims 1-13, wherein the electrical control box is installed inside the housing.

15. An air conditioner characterized by comprising: It includes an indoor air conditioning unit and an outdoor air conditioning unit as described in claim 14, wherein the outdoor air conditioning unit and the indoor air conditioning unit are connected by a pipeline for the flow of heat exchange medium.

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