Mounting rack and electrical box

Abstract

This invention relates to a mounting bracket and an electrical box. The mounting bracket has an installation state for mounting a motherboard and a clearance state for offsetting at least two motherboards that are obstructing each other. The mounting bracket includes a base and at least one set of mounting arm assemblies. One end of each set of mounting arm assemblies is rotatably connected to the base, and the other end is connected to the motherboard. When the mounting bracket switches from the installation state to the clearance state, the mounting arm assemblies can be controlled to rotate relative to the base, causing their respective motherboards to move relative to the base until they are offset from the motherboards that are obstructing each other. When both obstructing and obstructed motherboards are present, the obstructing motherboard is mounted using the mounting bracket. When the obstructed motherboard needs inspection or maintenance, simply rotating the mounting arm assembly corresponding to the obstructing motherboard enters the clearance state. During this process, the obstructing motherboard on the mounting arm assembly changes its position, thereby exposing the obstructed motherboard.

Description

Technical Field

[0001] This invention relates to the field of air conditioning equipment technology, and in particular to a mounting bracket and electrical box. Background Technology

[0002] Air conditioner outdoor units typically have a large number of main boards. Existing side-discharge outdoor unit electrical boxes often use a multi-layer main board parallel stacking structure, with the front and rear main boards fixed on independent sheet metal mounting plates, all secured with screws.

[0003] However, when it is necessary to repair the internal motherboard components, the front sheet metal mounting plate and the motherboard will block the view. Therefore, it is often necessary to remove the front sheet metal parts first in order to repair the motherboard. After the repair is completed, the sheet metal parts and the motherboard are put back in sequence. Obviously, such a structure is not convenient for operation during inspection and maintenance. Summary of the Invention

[0004] Therefore, it is necessary to provide a mounting bracket and electrical box that can prevent the front motherboard from obstructing the rear motherboard during inspection and maintenance, in order to address the above problems.

[0005] A mounting bracket has a mounting state for mounting motherboards and a clearance state for offsetting at least two motherboards that are obstructing each other, the mounting bracket comprising:

[0006] Base; and

[0007] At least one set of mounting arm assemblies, one end of each set of mounting arm assemblies being rotatably connected to the base and the other end being connected to the motherboard;

[0008] During the process of switching the mounting bracket from the mounting state to the avoidance state, the mounting arm assembly can be controlled to rotate relative to the base, and drive the motherboards connected to it to move relative to the base until they are offset from the motherboards that are obstructing it.

[0009] The aforementioned mounting bracket is used when multiple motherboards are present, especially when there is a relationship of obstruction between the motherboards, resulting in obstructing and blocked motherboards. The motherboards that would otherwise obstruct other motherboards are mounted using the mounting bracket. When the blocked motherboard needs inspection or maintenance, simply rotating the mounting arm assembly corresponding to the blocking motherboard causes the mounting bracket to enter a clearance state. During this process, the blocking motherboard on the mounting arm assembly changes its position, shifting away from the blocked motherboard and exposing it.

[0010] In one embodiment, the end of the mounting arm assembly away from the base is rotatably connected to the motherboard, and when the mounting arm assembly rotates relative to the base, it causes the motherboard to move relative to the base.

[0011] In one embodiment, the rotation axis of the mounting arm assembly is horizontal.

[0012] In one embodiment, the mounting arm assembly includes a main arm and a boom. One end of the main arm is rotatably connected to the base, and the other end is connected to the boom. The boom extends in a direction intersecting the longitudinal extension direction of the main arm and is rotatably connected to the main board.

[0013] In one embodiment, the boom includes two sub-booms, one end of each sub-boom being connected to the main boom, and the other ends extending apart from each other and away from the base, and respectively rotatably connected to both sides of the main board.

[0014] In one embodiment, the mounting arm assembly further includes a support arm supported between the motherboard and the main arm, and configured to rotatably connect one end to the motherboard in its longitudinal direction and the other end to the main arm, and slide along the longitudinal direction of the main arm when the motherboard rotates relative to the main arm.

[0015] In one embodiment, the support arm is rotatably connected to the main arm via a pin, and the main arm has a sliding groove along its longitudinal direction for the pin to slide.

[0016] In one embodiment, the base is configured to have a support surface, and when the main arm rotates to be in contact with and supported by the support surface, the mounting frame is in the avoidance state.

[0017] In one embodiment, the main boom and the boom are configured with cable trays that extend along their respective extension directions and are interconnected.

[0018] In one embodiment, the mounting bracket includes two sets of the mounting arm assemblies, and the rotation axes of the two sets of mounting arm assemblies are perpendicular to each other.

[0019] In one embodiment, the mounting bracket further includes a mounting plate, the main board being connected to the mounting plate and connected to the mounting arm assembly via the mounting plate;

[0020] When the mounting bracket is in the mounting state, the mounting plates that are connected to the two sets of mounting arm assemblies are connected by detachable connectors.

[0021] In one embodiment, the mounting bracket further includes a mounting plate, the main board being connected to the mounting plate and connected to the mounting arm assembly via the mounting plate.

[0022] In one embodiment, the mounting plate includes a first segment, a second segment, and a third segment connected in sequence, wherein the first segment and the third segment are parallel but not coplanar, and the second segment is obliquely connected between the first segment and the third segment.

[0023] In one embodiment, the mounting bracket further includes a locking element operable to lock the mounting arm assembly in the mounted state.

[0024] In one embodiment, the mounting bracket further includes a mounting plate, the main board being connected to the mounting plate and connected to the mounting arm assembly via the mounting plate;

[0025] The locking element is a hook fixed relative to the base, and the mounting plate has a slot. When the mounting frame is in the mounting state, the hook engages with the slot.

[0026] In one embodiment, the base is provided with an oblong hole, and the mounting arm assembly is rotatably connected to the base via a pin and the oblong hole. The pin is movable along the extension direction of the oblong hole, and the mounting arm assembly is movable along the oblong hole via the pin, thereby causing the bayonet to engage or disengage from the hook during movement.

[0027] An electrical box, the electrical box comprising a box body, a main board, and the aforementioned mounting bracket.

[0028] In one embodiment, the housing includes multiple shell plates that surround and define an accommodating space isolated from the outside world, and the mounting bracket and the main board are installed within the accommodating space.

[0029] At least one of the shell plates is removable.

[0030] In one embodiment, the motherboard includes an outer motherboard and an inner motherboard, the outer motherboard being mounted on the mounting bracket and the inner motherboard being mounted on the inner wall of the shell.

[0031] In one embodiment, the electrical box further includes a pre-fixing member, which includes two intersecting fixing surfaces and a hook, one of the two fixing surfaces being connected to the box body and the other being connected to the hook.

[0032] In one embodiment, the plurality of shell plates include a main body and a disassembly section. The main body is composed of two side plates, a top plate and a bottom plate. The disassembly section is composed of two side plates and is detachably connected to the main body to form the box body together.

[0033] An air outlet vent is provided on one of the side plates of the main body, and an air inlet vent is provided on the top plate. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a structural disassembly diagram of the electrical box without the mainboard installed in one embodiment of the present invention;

[0036] Figure 2 for Figure 1 The diagram shows the structure in which the mounting bracket in the electrical box is in a clearance configuration.

[0037] Figure 3 for Figure 1 The diagram shows the mounting bracket in the electrical box in the installation state.

[0038] Figure 4 for Figure 1 The diagram shows the structure of the main body of the electrical box.

[0039] Figure 5 for Figure 4 The top view of the main body shown;

[0040] Figure 6 for Figure 1 The diagram shows the structure of the disassembly and assembly section in the electrical box.

[0041] Figure 7 for Figure 1 The diagram shows the structure of the cover plate in the electrical box.

[0042] Figure 8 for Figure 7 The front view of the cover plate is shown;

[0043] Figure 9 for Figure 1 The diagram shows the structure of the pre-fixed component in the electrical box.

[0044] Figure 10 for Figure 1 A schematic diagram of the three-section mounting plate in the electrical box shown;

[0045] Figure 11 for Figure 10 The front view of the mounting plate is shown.

[0046] Figure 12 for Figure 11 Side view of the mounting plate shown;

[0047] Figure 13 for Figure 1 The diagram shows the structure of the main boom and the lifting arm in the electrical box.

[0048] Figure 14 for Figure 13 The side view of the main boom and jib shown;

[0049] Figure 15 for Figure 13 The top view of the main boom and jib shown;

[0050] Figure 16 for Figure 1 The diagram shows the structure of the support arm in the electrical box.

[0051] Figure 17 for Figure 16 The side view of the support arm shown;

[0052] Figure 18 for Figure 16 Top view of the support arm shown;

[0053] Figure 19 for Figure 1 A schematic diagram of the straight mounting plate in the electrical box shown;

[0054] Figure 20 for Figure 19 The front view of the mounting plate is shown.

[0055] Figure 21 for Figure 19 Side view of the mounting plate shown;

[0056] Figure 22 for Figure 1 The diagram shows the structure of the locking element in the electrical box.

[0057] Figure 23 for Figure 1 The diagram shows the structure of the base in the electrical box.

[0058] Figure 24 for Figure 23 The top view of the base shown.

[0059] Explanation of reference numerals in the attached drawings: 100, Electrical box; 10, Box body; 11, Main body; 13, Assembly / disassembly part; 101, Side plate; 103, Top plate; 105, Bottom plate; 15, Cover plate; 151, Flanged edge; 30, Main board; 31, Outer main board; 33, Inner main board; 50, Mounting bracket; 51, Base; 511, Base bottom; 513, Mounting part; 5131, Connecting plate; 515, Rib; 53, Mounting arm assembly; 531, Main arm; 533, Boom; 5331, Sub-boom; 535, Support arm; 5351, Sub-support arm; 55, Mounting plate; 551, First section; 552 553, 554; 555, 556; 557, 558; 57, 58, 59, 50, 51, 52, 53, 54, 555; 558, 56, 57, 58, 59, 50, 71, 72, 73, 74, 75, 76, 77, 78, 79, 7 ... Detailed Implementation

[0060] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0061] 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 do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0062] Furthermore, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0066] Please see Figures 1 to 3 An embodiment of the present invention provides an electrical box 100 including a box body 10, a main board 30, and a mounting bracket 50. At least a portion of the main board 30 is mounted inside the box body 10 via the mounting bracket 50.

[0067] The electrical box 100 can be the electrical box 100 of a side-discharge air conditioner outdoor unit. The main board 30 can be composed of a PCB board and components. Besides the components on the main board 30, the electrical box 100 may also have other components. Furthermore, to achieve electrical and communication connections between the electrical box 100 and other components of the side-discharge air conditioner outdoor unit, the electrical box 100 also contains various pipelines. In addition to at least a portion of the main board 30 being indirectly mounted inside and outside the box 10 via mounting brackets 50, the main board 30 can also be directly mounted on the wall inside the box 10.

[0068] Furthermore, the housing 10 includes multiple shell plates (including the main body 11 and the disassembly part 13 described below). The multiple shell plates surround and jointly define an accommodating space S isolated from the outside world. The main board 30 and the mounting bracket 50 are both installed in the accommodating space S. At least one shell plate is detachable.

[0069] In addition to the problems mentioned in the background art, in the prior art, the electrical box 100 of the side-discharge air conditioner outdoor unit is mostly an open structure, that is, the main board 30 and pipeline inside the electrical box 100 are directly connected to the outside. On the other hand, the air conditioner outdoor unit is generally located in the outdoor environment, and outdoor insects and rodents can easily enter the unit without any obstruction, causing abnormalities in the main board 30 and pipelines.

[0070] Therefore, with the electrical box 100 forming an isolated accommodating space S through the shell plate, the interior of the box body 10 is this accommodating space S. The main board 30 and pipelines located within the accommodating space S are protected by the shell plate. Under the barrier of the shell plate, the main board 30 and pipelines of the electrical box 100 can work more stably and are not affected by external factors, especially insects and rodents. At least one shell plate is also provided to facilitate subsequent inspection and maintenance of the electrical box 100.

[0071] Please refer to the following: Figures 4 to 6 Furthermore, the multiple shell panels include a main body 11 and a detachable portion 13. The main body 11 consists of two side panels 101, a top panel 103 at the top, and a bottom panel 105 at the bottom. The detachable portion 13 consists of two side panels 101 and is detachably connected to the main body 11 to collectively form the box body 10.

[0072] The main body 11 forms the structural foundation of the entire electrical box 100. The main board 30 and mounting bracket 50 are connected to the main body 11 directly or indirectly. The disassembly / removal part 13 fully closes the entire box 10 during installation, ensuring its accommodating space S is isolated from the outside. When removed, it fully exposes the accommodating space S of the box 10 from both sides, facilitating inspection and maintenance. In other words, the electrical box 100 is opened by removing the disassembly / removal part 13 and closed by installing it. For practical considerations and ease of operation, the two side plates 101 of the main body 11 and the two side plates 101 of the disassembly / removal part 13 are adjacent side plates 101. After the disassembly / removal part 13 is installed, the four side plates 101 are connected sequentially, with the top plate 103 located at the common ends of the four side plates 101.

[0073] In one specific embodiment, a plurality of connecting holes L are formed on the side of one side panel 101 of the main body 11, and the electrical box 100 is fixed to components such as the air conditioner outdoor unit by means of screws or other connectors that engage with the connecting holes L. The disassembly part 13 is integrally bent from a sheet metal part, and a clearance notch B is formed at the corresponding position of the mating part with the main body 11 to avoid the connecting holes L on its side. It is understood that in some other embodiments, the main body 11 can be fixed by welding or other means, which are not specifically limited here.

[0074] Specifically, one side plate 101 of the main body 11 has an air outlet vent R1 and a fan plate radiator slot E1, the top plate 103 has an air inlet vent R2, and the other side plate 101 has a compressor plate radiator slot E2. The air outlet vent R1 mainly connects to the air duct of the air conditioning unit to dissipate heat from the internal components of the electrical box 100, while the air inlet vent R2 connects to the outside. The fan plate radiator slot E1 and the compressor plate radiator slot E2 are used to avoid obstructing the assembly of the fan plate radiator. The top plate 103 also has a cable inlet J for the pipeline to enter the accommodating space S.

[0075] Please refer to the following: Figure 7 and Figure 8 Furthermore, the housing 10 also includes a cover plate 15 covering the top plate 103 of the main body 11. The cover plate 15 has flanges 151 that fit snugly against the two side plates 101 of the disassembly / assembly part 13 at their mating points. At least one of the flanges 151 has a connecting hole L. The side plates 101 of the disassembly / assembly part 13 also have corresponding connecting holes L. The two are connected by screws or other connectors, thereby indirectly achieving a detachable connection between the disassembly / assembly part 13 and the main body 11. Additionally, the flange 151 of the cover plate 15 with the connecting hole L forms a relief groove C to avoid screws. Understandably, the disassembly / assembly part 13 can also be detachably connected to the main body 11 by snap-fit ​​or other means, which are not specifically limited here.

[0076] Please refer to the following: Figure 9 In some embodiments, the electrical box 100 further includes a pre-fixing member 70, which includes two intersecting fixing surfaces 71 and a hook 73. One of the two fixing surfaces 71 is connected to the box body 10, and the other is connected to the hook 73.

[0077] The fixing surface 71 connected to the box body 10 can be connected, snapped or welded by connectors, and the box body 10 can be pre-hung in a suitable position by the hook 73 of the pre-fixing part 70, and then formally fixed by welding or screws.

[0078] Specifically, the two fixed surfaces 71 are perpendicular to each other and connected by a transition surface 75 located between them. The two fixed surfaces 71 and the transition surface 75 are formed by bending the same sheet metal part. There are two hooks 73, which are in the shape of a "7", and the plane on which the hooks 73 are located is parallel to the fixed surface 71 of the connecting box 10.

[0079] In some embodiments, the motherboard 30 includes an outer motherboard 31 and an inner motherboard 33, with the outer motherboard 31 mounted on the mounting bracket 50 and the inner motherboard 33 mounted on the inner wall of the shell.

[0080] The outer main board 31 and the inner main board 33 are divided into the inner main board 33 of the electrical box 100 according to the different installation positions of the main board 30. In addition to the mounting bracket 50, the shell plate, especially the two side plates 101 of the main body 11, can be used to install the main board 30, thereby improving the utilization rate of the electrical box's storage space S.

[0081] In a specific embodiment, the electrical box 100 includes two outer main boards 31 and two inner main boards 33, for a total of four main boards 30. The two inner main boards 33 are respectively installed on the inner walls of the two side panels 101 of the main body 11, while the two outer main boards are installed opposite the two inner main boards 33 via mounting brackets 50. That is, the two outer main boards 31 are installed close to the side panels 101 of the two disassembly / assembly parts 13. In other words, the four main boards 30 are arranged around the four side panels 101 within the box body 10. The terms "inner" and "outer" for the outer main boards 31 and inner main boards 33 refer to the fact that after opening the box body 10, the outer main boards 31 are relatively closer to the maintenance personnel and located on the outer side, while the inner main boards 33 are relatively closer to the inner side.

[0082] Understandably, in some other embodiments, the electrical box 100 may also include other numbers of main boards 30, such as 2, 6, 8, etc. The inner walls of each shell plate of the electrical box 100 can also be used to install the main boards 30. In addition, the main boards 30 can also be installed in the accommodating space S in a stacked manner by mounting brackets 50.

[0083] Please refer to it again. Figures 1 to 3The present invention also provides the aforementioned mounting bracket 50, having an installation state for mounting a motherboard 30 and a clearance state for offsetting at least two motherboards 30 that are obstructing each other. The mounting bracket 50 includes a base 51 and at least one set of mounting arm assemblies 53. One end of each set of mounting arm assemblies 53 is rotatably connected to the base 51, and the other end is connected to the motherboard 30. When the mounting bracket 50 switches from the installation state to the clearance state, the mounting arm assemblies 53 can be controlled to rotate relative to the base 51, thereby causing their respective connected motherboards 30 to move relative to the base 51 until they are offset from the motherboards 30 that are obstructing each other.

[0084] Multiple mounting arm assemblies 53 are rotatably connected to the base 51, and the motherboard 30 is connected to the mounting arm assemblies 53 directly or indirectly. The state switching of the mounting bracket 50 is achieved by rotating the mounting arm assemblies 53. When there are multiple motherboards 30 and there is an obstruction relationship between the motherboards 30, there are obstructing motherboards that obstruct other motherboards 30 and obstructed motherboards that are obstructed by other motherboards 30. A motherboard 30 can be both an obstructing motherboard and an obstructed motherboard. At least the obstructing motherboard is mounted through the mounting bracket 50 and specifically mounted on the mounting arm assembly 53. When the mounting arm assembly 53 rotates, it can drive the motherboard 30 connected to it to move. The movement includes rotation, movement, or both rotation and movement, to change the position state of the motherboard 30. Specifically, it can rotate and lay down the motherboard 30 that was originally upright, or drive the motherboard 30 to move with the connection point to be misaligned with the obstructed motherboard, etc.

[0085] In the aforementioned mounting bracket 50, when multiple motherboards 30 are present simultaneously, especially when there is a relationship of obstruction between the motherboards 30, resulting in obstructing and blocked motherboards, the obstructing motherboard that would block other motherboards 30 is mounted through the mounting bracket 50. When it is necessary to inspect or maintain the blocked motherboard, simply drive the mounting arm assembly 53 corresponding to the obstructing motherboard to rotate, causing the mounting bracket 50 to enter a clearance state. During this process, the obstructing motherboard on the mounting arm assembly 53 will change its position, offset from the blocked motherboard, thereby exposing the blocked motherboard.

[0086] In this embodiment, the base 51 can be disposed on the bottom plate 105 of the housing 10, and each set of mounting arm assemblies 53 rotatably connected to it can be used to fix a main board 30 (that is, equivalent to the aforementioned outer main board 31, and also the blocking main board that obstructs the inner main board 33, while the inner main board 33 is the blocked main board). It can be understood that under normal conditions, when the electrical box 100 is closed, the mounting bracket 50 should be in the installation state, at which time the main board 30 is stably placed inside the electrical box 100 through the mounting bracket 50. When the electrical box 100 is opened for inspection and maintenance, the mounting bracket 50 can be switched to the avoidance state by rotating the mounting arm assembly 53.

[0087] Understandably, the mounting bracket 50 is not limited to use in the aforementioned electrical box 100. It can also be used independently and can be used to avoid the blocked motherboard behind it by driving the shielding motherboard mounted on it. No specific limitation is made here.

[0088] Please refer to the following: Figures 10 to 12 In some embodiments, the mounting bracket 50 further includes a mounting plate 55, to which the main board 30 is connected, and via the mounting plate 55, the mounting arm assembly 53 is connected. In other words, the mounting arm assembly 53 is indirectly connected to the main board 30 via the mounting plate 55.

[0089] At least one side of the mounting plate 55 is used to mount the PCB board and various components, and correspondingly has through holes G for through-wires to pass through. The through holes G can be designed with a flange 151 to avoid scratching the through-wires. The connection between the motherboard 30 and the mounting arm assembly 53 is achieved indirectly through the mounting plate 55, so the motherboard 30 does not require special design.

[0090] Furthermore, the mounting plate 55 includes a first segment 551, a second segment 552, and a third segment 553 connected in sequence. The first segment 551 and the third segment 553 are parallel but not coplanar, and the second segment 552 is obliquely connected between the first segment 551 and the third segment 553.

[0091] Mounting plate 55 is a three-section design, thus creating three different intervals between it and other components through three different planes, which can fully accommodate the arrangement of components of different heights. Understandably, the structure of different mounting plates 55 can be different; in addition to the three-section design, there can also be a flat, straight mounting plate 55 (such as...). Figure 19 (As shown).

[0092] In some embodiments, the end of the mounting arm assembly 53 away from the base 51 is rotatably connected to the motherboard 30. When the mounting arm assembly 53 rotates relative to the base 51, it causes the motherboard 30 to move relative to the base 51.

[0093] The motherboard 30 can rotate relative to the mounting arm assembly 53 under the action of an external force, rather than rotating synchronously with it. During the rotation of the mounting arm assembly 53, the motherboard 30 on it moves in an arc, essentially following the end away from the base 51, and this movement causes the motherboard 30 to move away from and offset relative to the rear motherboard 30. In this way, the blocking motherboard can move away from and avoid the blocked motherboard.

[0094] The rotation of the mounting arm assembly 53 is directed outward from the housing 10 of the electrical box 100. In the avoidance state, the main board 30 on the mounting arm assembly 53 is located outside the housing 10. The housing 10 provides sufficient extension space for the main board 30, allowing it to rotate relative to the mounting arm assembly 53 or to assume a specific angle under external force. Furthermore, the rotation axis of the mounting arm assembly 53 passes through the base 51, thus, by rotatably connecting the main board 30 to the end of the mounting arm assembly 53 away from the base 51, the main board 30 can achieve a greater range of movement.

[0095] Specifically, a rotating connection part 557 is constructed on the mounting plate 55. The rotating connection part 557 has a shaft hole and is rotatably connected to the mounting arm assembly 53 through the shaft hole and a pin. The main board 30 forms a rotating connection relationship with the mounting arm assembly 53 through the mounting plate 55.

[0096] Furthermore, the rotation axis of the mounting arm assembly 53 is horizontally positioned. Here, the horizontally positioned rotation axis lies within a horizontal plane, which refers to a plane perpendicular to the direction of gravity.

[0097] The rotation axis of the mounting arm assembly 53 is horizontal, and its rotation occurs within a vertical plane, which is parallel to the direction of gravity. When the mounting arm assembly 53 rotates, the main board 30 connected to it remains vertical under the influence of gravity and rotates relative to the mounting arm assembly 53. The main board 30's verticality under gravity also facilitates inspection and maintenance even when it is in a clearance position relative to the mounting frame 50.

[0098] Understandably, in some other embodiments, the rotation axis of the mounting arm assembly 53 may be in other directions, and the angle of the motherboard 30 may be maintained or changed by external forces other than gravity during rotation.

[0099] Please refer to the following: Figures 13 to 15 In some embodiments, the mounting arm assembly 53 includes a main arm 531 and a boom 533. One end of the main arm 531 is rotatably connected to the base 51, and the other end is connected to the boom 533. The boom 533 extends in a direction intersecting the longitudinal extension direction of the main arm 531 and is rotatably connected to the main board 30.

[0100] The main boom 531 is connected to the boom 533. One end of the main boom 531 is connected to the base 51. The end of the boom 533 away from the main boom 531, i.e., the end of the mounting arm assembly 53 away from the base 51, is used to rotatably connect to the mounting plate 55 to form a rotatable connection with the main plate 30. Understandably, the end of the boom 533 used to connect to the mounting plate 55 is constructed with a shaft hole for a pin to pass through and rotatably connect with the rotatable connection part 557 of the mounting plate 55.

[0101] The boom 533 extends in a direction intersecting the longitudinal extension direction of the main boom 531. Therefore, the main board 30 and mounting plate 55 connected to the boom 533 will be spaced apart from the main boom 531 to prevent interference or collision between the main boom 531 and the components on the main board 30. For the mounting plate 55 directly connected to the boom 533, its side facing the main boom 531 will also be spaced apart from the main boom 531. Thus, both sides of the mounting plate 55 can be used to mount the main board 30 or other components.

[0102] Preferably, when the mounting bracket 50 is in the installed state, the longitudinal direction of the main arm 531 is the vertical direction. This facilitates the full utilization of the internal storage space S of the box 10.

[0103] Furthermore, the boom 533 includes two sub-booms 5331, one end of each sub-boom 5331 is connected to the main boom 531, and the other ends extend apart from each other and away from the base 51, and are respectively rotatably connected to both sides of the main board 30.

[0104] Two sub-booms 5331 extend away from the base 51, forming a Y-shaped boom together with the main boom 531. The two sub-booms 5331 can respectively connect to the opposite sides of the main board 30 and the mounting plate 55, providing them with stable connection and support, and further ensuring a good distance between the booms 533 and the main board 30 and the mounting plate 55, especially avoiding the center position of the main board 30 and the mounting plate 55.

[0105] Furthermore, the main boom 531 and the boom 533 are constructed with cable trays Z extending along their respective extension directions and interconnected. The cross-section of the cable tray Z is C-shaped, which can accommodate pipelines. The pipelines extend along the cable tray Z and finally connect to the main board 30 through the cable passage holes G of the mounting plate 55. In addition, the walls of the cable tray Z of the boom 533 and the main board 30 are also constructed with fixing through holes T for fixing the pipelines in the cable tray Z, wherein the fixing through holes T can be parallelograms.

[0106] The pipelines are located in the cable trays Z of the main boom 531 and the boom 533, which protect them from interference with other components. This is especially important when the mounting arm assembly 53 is rotatable. If the pipelines were directly exposed in the accommodating space S, they could easily interfere with the moving mounting arm assembly 53, causing entanglement or even damage. On the other hand, the main boom 531 and the boom 533 with cable trays Z can achieve weight reduction while maintaining sufficient strength.

[0107] Please refer to the following: Figures 16 to 18In some embodiments, the mounting arm assembly 53 further includes a support arm 535, which is supported between the motherboard 30 and the main arm 531 and is configured to rotatably connect one end to the motherboard 30 in its longitudinal direction and the other end to the main arm 531, and slide along the longitudinal direction of the main arm 531 when the motherboard 30 rotates relative to the main arm 531.

[0108] The support arm 535 provides support for the motherboard 30, ensuring its relative angle stability and preventing swaying due to its rotational connection with the boom 533 and its distance from the main boom 531. The support arm 535 can slide along the longitudinal direction of the main boom 531 at one end to accommodate changes in the distance between the motherboard 30 and the main boom 531 caused by their rotation, thus supporting the motherboard 30 while maintaining its rotational capability. The mounting plate 55 has multiple rotating connection parts 557. In addition to the two sub-booms 5331, the support arm 535 is also indirectly rotated to the motherboard 30 through these rotating connection parts 557 on the mounting plate 55.

[0109] Furthermore, the support arm 535 is rotatably connected to the main arm 531 via a pin, and the main arm 531 has a sliding groove H along its longitudinal direction for the pin to slide (e.g., Figure 14 (As shown).

[0110] The end of the support arm 535 that is connected to the main arm 531 can slide along the sliding groove H via a pin, that is, slide along the longitudinal direction of the main arm 531.

[0111] Understandably, for a similar purpose to the sub-boom 5331, the support boom 535 also includes two sub-support booms 5351. One end of each sub-support boom 5351 is connected to the other and located within the cable tray Z. They are rotatably connected to the main boom 531 via a pin and a sliding groove H, and can slide within the cable tray Z. The other ends of the two sub-support booms 5351 are spaced apart from each other and rotatably connected to both sides of the mounting plate 55.

[0112] Furthermore, the base 51 is constructed to form a support surface A (such as...). Figure 23 As shown, when the main boom 531 rotates to be in contact with and supported by the support surface A, the mounting frame 50 is in a avoidance state.

[0113] Support surface A supports the main arm 531, ensuring it maintains a stable angle and stabilizing the mounting bracket 50 in its avoidance position. Furthermore, support surface A prevents the main arm 531 from rotating beyond its limit. The rotation limit of the main arm 531 should at least allow the connected shielding motherboard to fully avoid the shielded motherboard. In addition, the rotation limit of the main arm 531 is also affected by the length of the support arm 535 and the length of the sliding groove H.

[0114] In one specific embodiment, the support surface A is inclined relative to the horizontal plane, and the end of the main arm 531 supported by it that is away from the base 51 is higher than the end that is connected to the base 51.

[0115] In some embodiments, the mounting bracket 50 includes two sets of mounting arm assemblies 53, and the rotation axes of the two sets of mounting arm assemblies 53 are perpendicular to each other.

[0116] The two sets of mounting arm assemblies 53 face different sides. Specifically, the two sets of mounting arm assemblies 53 face the two side plates 101 of the disassembly and assembly section 13. At this time, the electrical box 100 is opened, that is, the disassembly and assembly section 13 is removed. The main board 30 installed on the two sets of mounting arm assemblies 53 is directly and fully exposed as the outer main board 31. The mounting bracket 50 can be switched to the avoidance state by driving the two sets of mounting arm assemblies 53, and rotated outward and downward to expose the inner main board 33 located behind them.

[0117] Furthermore, when the mounting bracket 50 is in the installation state, the mounting plates 55, which are respectively connected to the two sets of mounting arm assemblies 53, are connected by detachable connectors.

[0118] The two mounting plates 55 connected to the two sets of mounting arm assemblies 53 are adjacent to each other, and the rotation axes of the two sets of mounting arm assemblies 53 are different. Therefore, the method of connecting the two mounting plates 55 can enhance the stability of the two sets of mounting arm assemblies 53 in the installation state.

[0119] Please refer to the following: Figures 19 to 21 Specifically, one of the two mounting plates 55 has a folded edge 555 on one side adjacent to the other, and a connecting hole L is formed on the folded edge 555 to connect the two mounting plates 55 by means of screws or other connectors. A clearance groove C to avoid the connector can also be formed on the folded edge 555. One of the two mounting plates 55 can be the three-section design described above, while the other can be a straight plate, so that the two have different adaptability.

[0120] More specifically, one of the two mounting plates 55, which is a straight plate, has filter plate fixing holes for fixing the filter plate.

[0121] Please refer to the following: Figure 2 and Figure 22 In some embodiments, the mounting bracket 50 further includes a locking element 57, which is operable to lock the mounting arm assembly 53 in the installed state.

[0122] Once locked, the mounting arm assembly 53 no longer rotates arbitrarily and remains in a relatively stable state. When it is necessary to switch the state of the mounting bracket 50, simply releasing the locking member 57 will restore the normal rotation capability of the mounting arm assembly 53. The mounting arm assembly 53 relies on the locking member 57 for locking, thus reducing the number of screws used compared to the prior art method of fixing the main board 30 with screws.

[0123] Understandably, when the mounting bracket 50 is in the installation state and the two mounting plates 55 on the two sets of mounting arm assemblies 53 are connected, one of them can be locked by the locking member 57.

[0124] Furthermore, the locking element 57 is a hook that is fixed relative to the base 51, and the mounting plate 55 has a slot K (such as...). Figure 11 As shown in the figure, when the mounting bracket 50 is in the installation state, the hook engages with the bayonet K.

[0125] When the hook engages with the bayonet K, the mounting plate 55 limits the rotation of the mounting arm assembly 53 in its rotation direction, thus restricting its rotation.

[0126] The hook can be fixed to a side plate 101 of the main body 11 of the box 10 by welding or other means, and the side plate 101 is provided with a positioning element 59 (such as...). Figure 4 As shown, the hook has a positioning notch D, which is used to determine whether the hook is installed accurately by matching the positioning notch D with the positioning part 59 when installing the hook.

[0127] Please refer to the following: Figure 23 and Figure 24 Furthermore, the base 51 is constructed with a waist-shaped hole O. The mounting arm assembly 53 is rotatably connected to the base 51 through a pin and the waist-shaped hole O. The pin can move along the extension direction of the waist-shaped hole O, and the mounting arm assembly 53 can move along the waist-shaped hole O through the pin. When moving, it drives the latch K of the mounting plate 55 to engage or disengage from the hook.

[0128] The slotted hole O, in conjunction with the pin, allows the mounting arm assembly 53 to rotate while also moving relative to the base 51 along the slotted hole O. This relative movement causes the latch K of the mounting plate 55 to move relative to the base 51, that is, to move relative to the latch, so as to achieve operable locking and unlocking.

[0129] In one specific embodiment, the longitudinal direction of the main arm 531 in the installed state is vertical, and the longitudinal direction of the waist groove is also vertical. Therefore, when the mounting frame 50 is in the installed state, pulling the mounting arm assembly 53 upwards by external force can disengage the latch K of the mounting plate 55 from the hook and put it in a pre-fitting state. At this time, the mounting arm assembly 53 can rotate, and the latch K can be completely disengaged from the hook range by rotation, thus disengaging from the pre-fitting state. When the mounting frame 50 is in the avoidance state, rotating the mounting arm assembly 53 closer to the installed state position, pulling the mounting arm assembly 53 upwards by external force can allow the mounting arm assembly 53 to continue rotating and drive the latch K into a pre-fitting state with the hook. After the external force is removed, the latch K automatically engages with the hook under the action of gravity. At this time, the hook locks the mounting arm assembly 53, and the mounting frame 50 is stably in the installed state.

[0130] Understandably, the locking member 57 can also lock the mounting arm assembly 53 in other ways. For example, the mounting plate 55 and a side plate 101 of the main body 11 are provided with insertion holes, and the mounting arm assembly 53 is locked relative to the side plate 101 by passing a pluggable plug through the insertion holes on the mounting plate 55 and the side plate 101. As long as it can lock the mounting arm assembly 53 when the mounting bracket 50 is in the installation state so that it does not rotate at will, no specific limitation is made here.

[0131] In some embodiments, the base 51 includes a base 511 and a plurality of mounting portions 513 constructed on the base 511, each mounting portion 513 being rotatably connected to a mounting arm assembly 53. Understandably, each mounting portion 513 is constructed with a mounting surface and an oblong hole O.

[0132] The base 511 can be connected to the base plate 105 of the housing 10 by means of screws, welding, etc. The number and orientation of the mounting parts 513 can be set according to the number of mounting arm assemblies 53 and the axis of rotation. Specifically, the base 51 includes two mounting parts 513, which face the two side plates 101 of the disassembly part 13 respectively, for mounting two sets of mounting arm assemblies 53. In some other embodiments, adaptive adjustments can be made according to specific needs, which are not specifically limited here.

[0133] Furthermore, the mounting part 513 has two spaced connecting plates 5131, both of which have oblong holes O. The main arm 531 is connected to the two connecting plates 5131 by pins that pass through both oblong holes O simultaneously. The two connecting plates 5131 are bent to form the support surface A of the main arm 531 in the support avoidance state.

[0134] In addition, ribs 515 are constructed between the base and the mounting to support the mounting part 513 and strengthen its structural strength.

[0135] When the aforementioned electrical box 100 and mounting bracket 50 are in use, under normal operating conditions, the electrical box 100 is in a closed state, the disassembly / removal part 13 is mounted on the main body 11, and the mounting bracket 50 inside is in an installed state. When it is necessary to inspect or maintain the electrical box 100, the disassembly / removal part 13 of the box body 10 is removed, exposing the outer main plate 31 of the two side plates 101 facing the disassembly / removal part 13, allowing direct inspection and maintenance of the outer main plate 31.

[0136] When the inner motherboard 33 needs inspection or maintenance, the outer motherboard 31, acting as a shielding motherboard, will obstruct the inner motherboard 33. In this case, firstly, the connection between the two mounting plates 55 is released. Then, the mounting plate 55 of the outer motherboard 31 is pulled upwards by external force, causing the mounting arm assembly 53 to move upwards along the oblong hole O of the base 51 via the pin, until the latch K of the mounting plate 55 disengages from the hook fixed to the side plate 101 of the main body 11, allowing the mounting arm assembly 53 to regain its rotational ability. Then, by rotating the mounting arm assembly 53, the motherboard 30 is moved outside the housing 10. Under the action of gravity, the motherboard 30 remains vertical and gradually moves away from the inner motherboard 33 until it is supported and stabilized in a non-obstructing state by the support surface A of the base 51. At this point, the obstructed inner motherboard 33 is fully exposed for inspection and maintenance.

[0137] After inspection and maintenance, simply push the mounting plate 55 to a position close to the installation position, pull the mounting plate 55 upwards with external force, and continue rotating the mounting plate 55 until the latch K of the mounting plate 55 is fully engaged with the hook. At this point, remove the external force, and under the action of gravity, the latch K of the mounting plate 55 will engage with the hook, thus completing the rotation limit of the mounting plate 55, i.e., the mounting arm assembly 53. For mounting plates 55 without hooks, they can be fixed by connecting to mounting plates 55 locked by hooks. At this point, the mounting bracket 50 is in the installation position. Finally, reinstall the disassembly part 13 on the main body 11, so that the electrical box 100 returns to the closed state and continues normal operation.

[0138] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0139] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A mounting bracket (50) characterized by, The mounting rack (50) has a mounting state for mounting the main boards (30) and an avoiding state for avoiding the blocking relationship between the at least two main boards (30), and the mounting rack (50) comprises: a base (51); and at least one set of mounting arm assemblies (53), one end of each set of the mounting arm assemblies (53) is rotationally connected to the base (51), and the other end is connected to the main board (30); wherein, during the switching of the mounting rack (50) from the mounting state to the avoiding state, the mounting arm assemblies (53) can be controlled to rotate relative to the base (51) and drive the main boards (30) connected thereto to move relative to the base (51) to avoid the blocking relationship with the main boards (30); one end of the mounting arm assembly (53) is rotationally connected to the main board (30), and when the mounting arm assembly (53) rotates relative to the base (51), the main board (30) is driven to move relative to the base (51); the rotation axis of the mounting arm assembly (53) is horizontally arranged; the mounting arm assembly (53) comprises a main arm (531) and a hanging arm (533), one end of the main arm (531) is rotationally connected to the base (51), and the other end is connected to the hanging arm (533), the hanging arm (533) extends in a direction intersecting the longitudinal extension direction of the main arm (531) and is rotationally connected to the main board (30); the mounting arm assembly (53) further comprises a support arm (535), the support arm (535) is supported between the main board (30) and the main arm (531) and is configured to have one end rotationally connected to the main board (30) and the other end rotationally connected to the main arm (531) and slide along the longitudinal direction of the main arm (531) when the main board (30) rotates relative to the main arm (531).

2. The mounting bracket (50) of claim 1, characterized in that the hanging arm (533) comprises two sub-hanging arms (5331), one end of each of the two sub-hanging arms (5331) is connected to the main arm (531), and the other end extends away from the base (51) and is rotationally connected to the two sides of the main board (30), respectively.

3. The mounting bracket (50) of claim 1, characterized in that, the support arm (535) is rotationally connected to the main arm (531) through a pin shaft, and the main arm (531) is provided with a sliding groove (H) along the longitudinal direction of the main arm (531) for the pin shaft to slide.

4. The mount (50) of claim 1, characterized by the base (51) is configured to form a support surface (A), and when the main arm (531) is rotated to abut against and be supported by the support surface (A), the mounting rack (50) is in the avoiding state.

5. The mount (50) of claim 1, wherein the main arm (531) and the hanging arm (533) are configured to have a wiring groove (Z) extending along the extension direction of each of them and communicating with each other.

6. The mount (50) of claim 1, characterized by the mounting rack (50) comprises two sets of the mounting arm assemblies (53), and the rotation axes of the two sets of the mounting arm assemblies (53) are perpendicular to each other.

7. The mounting bracket (50) of claim 6, characterized by the mounting rack (50) further comprises a mounting plate (55), the main board (30) is connected to the mounting plate (55) and connected to the mounting arm assembly (53) through the mounting plate (55); The mounting plate (55) connected with the main board (30) is connected with the mounting arm assembly (53) through the mounting plate (55) when the mounting frame (50) is in the mounting state.

8. The mount (50) according to any one of claims 1-7, characterized in that, The mounting plate (55) connected with the main board (30) is connected with the mounting arm assembly (53) through the mounting plate (55) when the mounting frame (50) is in the mounting state.

9. The mounting bracket (50) of claim 8, characterized by The mounting plate (55) comprises a first section (551), a second section (552) and a third section (553) connected in sequence, the first section (551) and the third section (553) are parallel but not coplanar, and the second section (552) is connected between the first section (551) and the third section (553) in an inclined manner.

10. A mounting bracket (50) according to any one of claims 1-7, characterized in that The mounting frame (50) further comprises a locking member (57), which can lock the mounting arm assembly (53) in the mounting state.

11. The mounting bracket (50) of claim 10, characterized by The mounting plate (55) connected with the main board (30) is connected with the mounting arm assembly (53) through the mounting plate (55) when the mounting frame (50) is in the mounting state. The locking member (57) is a hook fixed relative to the base (51), and a bayonet (K) is formed in the mounting plate (55), the hook and the bayonet (K) are matched when the mounting frame (50) is in the mounting state.

12. The mounting bracket (50) of claim 11, characterized by The base (51) is configured with a waist-shaped hole (O), the mounting arm assembly (53) is rotatably connected with the base (51) through a pin shaft and the waist-shaped hole (O), the pin shaft can move along the extension direction of the waist-shaped hole (O), and the mounting arm assembly (53) can move along the waist-shaped hole (O) through the pin shaft, and the bayonet (K) is clamped into or separated from the hook when the mounting arm assembly (53) moves.

13. An electrical box (100), characterized in that, The electrical appliance box (100) comprises a box body (10), a main board (30) and the mounting frame (50) of any one of claims 1-12.

14. The electrical box (100) of claim 13, wherein, The box body (10) comprises a plurality of shell plates, the plurality of shell plates are combined to jointly define a containing space (S) isolated from the outside, and the mounting frame (50) and the main board (30) are installed in the containing space (S). At least one of the shell plates is detachable.

15. The electrical box (100) of claim 14, wherein, The main board (30) comprises an outer main board (31) and an inner main board (33), the outer main board (31) is installed on the mounting frame (50), and the inner main board (33) is installed on the inner wall of the shell plate.

16. The electrical box (100) of claim 14, wherein, The plurality of shell plates comprise a main body part (11) and a detachable part (13), the main body part (11) is composed of two side plates (101), a top plate (103) and a bottom plate (105), the detachable part (13) is composed of two side plates (101) and is detachably connected with the main body part (11) to jointly form the box body (10). One of the side plates (101) of the main body part (11) is configured with an air outlet heat dissipation hole (R1), and the top plate (103) is configured with an air inlet heat dissipation hole (R2).

17. The electrical box (100) of claim 13, wherein, The electric appliance box (100) further comprises a pre-fixing part (70), the pre-fixing part (70) comprises two intersecting fixing surfaces (71) and a hook (73), one of the two fixing surfaces (71) is connected with the box body (10), and the other is connected with the hook (73).

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