Electric appliance box structure and air conditioner

Abstract

The application provides an electric appliance box structure and an air conditioner. The electric appliance box structure comprises: a first PCB assembly vertically arranged in an outdoor unit; a connecting plate connected between the first PCB assembly and the lower part of a handle of the outdoor unit; a rainproof opening is arranged on the part of the connecting plate close to the handle; and the lower edge of the rainproof opening is connected to an inclined plate which is inclined to the first PCB assembly and used for mounting a wiring board. The rainproof opening and the inclined plate design effectively guide the rainwater to flow outward, prevent the rainwater from dropping on the wiring board, and avoid potential safety hazards such as short circuit and component corrosion. The two sides of the second connecting part are provided with flow guide strips, which further improve the flow guide effect and prevent the rainwater from accumulating. In addition, the ventilation gap between the flow guide strips and the front side wall of the outdoor unit is designed to help the air in the electric appliance box to circulate, improve the heat dissipation performance, ensure the electronic components to work at a suitable temperature, and prolong the service life of the components.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioner design structure, in particular to an electric appliance box structure and air conditioner. BACKGROUND

[0002] With the rapid development of air conditioning technology, air conditioning equipment not only needs to realize the basic refrigeration and heating functions, but also needs to continuously increase other intelligent functions to meet the increasingly diversified life needs of users, such as intelligent temperature control, energy-saving operation, remote control, etc. The realization of these functions mainly depends on the main control board inside the electric appliance box of the air conditioner. As the core control unit of the air conditioning system, the main control board has increasing functional requirements, which leads to the increasing complexity of electronic components, control circuits and interfaces on the main control board. Under the condition of limited electric appliance box size, a single main control board often cannot integrate all functional modules. Therefore, to meet the needs of system control, auxiliary circuit boards such as wiring boards and filter boards are usually additionally arranged. These circuit boards play an important role in air conditioning outdoor units, such as carrying more wiring, signal transmission and power filtering, etc., which further improves the stability and functional expansion capability of the air conditioning system.

[0003] In the prior art, the wiring board of the air conditioning outdoor unit is generally installed at the position below the outdoor unit handle. Although this design is convenient for maintenance and wiring operation, the air conditioning outdoor unit is usually installed in an outdoor environment and faces adverse weather conditions such as wind and rain. When there is a structural gap at the cooperation position of the outdoor unit side plate and the handle, rainwater can easily seep or drip into the wiring board through the gap, especially in heavy rain, the rainwater leakage is more serious.

[0004] Therefore, in view of the problem that the wiring board arrangement of the existing air conditioning outdoor unit is easily affected by rainwater, an improved scheme is urgently needed to improve the safety and reliability of the air conditioning outdoor unit in adverse environments and avoid electrical faults and safety hazards caused by rainwater leakage. SUMMARY

[0005] The present application proposes an electric appliance box structure and air conditioner to solve the technical problem that the wiring board near the handle in the prior art is easily affected by rainwater.

[0006] The technical scheme adopted by the present application is:

[0007] The present application proposes an electric appliance box structure, which comprises: a first PCB assembly vertically arranged in the outdoor unit, a connecting plate connected between the first PCB assembly and the lower side of the outdoor unit handle, a rainproof opening is arranged on the part of the connecting plate close to the outdoor unit handle, and the lower edge of the rainproof opening is connected to the first PCB assembly direction and inclined to install the inclined plate for the wiring board.

[0008] Further, the gap is provided between the two side edges of the inclined plate and the two ends of the lower edge of the rainproof opening.

[0009] Specifically, the connecting plate is bent into a first connecting part for mounting the second PCB and a second connecting part for mounting the terminal plate.

[0010] Further, the second connecting part is formed into two flow guide strips at the part of the two side edges of the rainproof opening.

[0011] Further, the second connecting part is bent into two sections from the middle part to the bottom part, the upper part of the second connecting part is connected above the handle of the outer machine handle side, and the handle below the handle of the outer machine handle side is provided with a connecting sheet extending upwardly and obliquely for connecting the bottom part of the second connecting part.

[0012] Further, the first connecting part is provided with a gap between the front side wall of the outer machine and the first connecting part to form a ventilation gap.

[0013] Further, the first connecting part is connected to the edge of the first PCB assembly to form a connecting edge, and the connecting edge is bent to form a reinforcing step between the connecting edge and the second PCB.

[0014] Further, the first connecting part is provided with a mounting opening for mounting the second PCB.

[0015] Preferably, the connecting plate is vertically bent into a first connecting part and a second connecting part, and the first connecting part is vertically connected to the top of the first PCB assembly.

[0016] The application also provides an air conditioner, wherein the outer machine of the air conditioner comprises the electrical box structure.

[0017] Compared with the prior art, the application has the following advantages:

[0018] 1. The rainproof opening and the inclined plate design effectively guide the rainwater to flow outward, prevent the rainwater from dropping on the terminal plate, and avoid safety hazards such as short circuit and component corrosion. The flow guide strips are arranged on the two sides of the second connecting part to further improve the flow guide effect and prevent the rainwater from accumulating.

[0019] 2. The connecting plate is vertically bent into a first connecting part and a second connecting part, which has stable structure and good load-bearing capacity. The reinforcing step design of the edge of the first connecting part enhances the rigidity of the connecting part and ensures the stability of the electrical box under the conditions of external force and vibration.

[0020] 3. The ventilation gap design between the first connecting part and the front side wall of the outer machine helps the air in the electrical box to flow, improves the heat dissipation performance, ensures the electronic components to work at an appropriate temperature, and prolongs the service life of the components.

[0021] 4. Through the multi-stage bending design, the installation space of the first PCB board, the second PCB board and the wiring board is reasonably distributed, orderly partition arrangement of the circuit and the functional module is realized, the internal space of the air conditioner outdoor unit is optimized, and the compactness and the neatness of component arrangement are improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0023] Figure 1 is a structural diagram of a structure with a leakage defect;

[0024] Figure 2 is a structural diagram of an air conditioner outdoor unit in the embodiment of the present application;

[0025] Figure 3 is a structural diagram of an electrical box in the embodiment of the present application;

[0026] Figure 4 is a structural diagram of a connecting piece in the embodiment of the present application;

[0027] Figure 5 is a side view of the connecting piece in the embodiment of the present application;

[0028] Figure 6 is a front view of the connecting piece in the embodiment of the present application;

[0029] Figure 7 is a top view of the connecting piece in the embodiment of the present application;

[0030] 1, connecting plate;

[0031] 11, first connecting part; 111, mounting opening; 112, connecting edge; 113, reinforcing step;

[0032] 12, second connecting part; 121, flow guide strip; 122, rainproof opening; 123, inclined plate;

[0033] 2, first PCB assembly;

[0034] 3, second PCB board;

[0035] 4, wiring board;

[0036] 5, outdoor unit handle;

[0037] 100, air conditioner outdoor unit. DETAILED DESCRIPTION

[0038] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0039] The principles and structures of the present application will be described in detail below in combination with the drawings and embodiments.

[0040] In the prior art, the wiring board of the air conditioner outdoor unit is generally installed at a position below the outdoor unit handle. Although this design is convenient for maintenance and wiring operation, the air conditioner outdoor unit is usually installed in an outdoor environment and faces adverse weather conditions such as wind and rain. When there is a structural gap between the outdoor unit side plate and the handle, rainwater can easily seep or drip into the wiring board along the gap, especially in heavy rain, the rainwater leakage is more serious. As shown in the accompanying drawings, the wiring board of this scheme is directly installed on the inclined surface (wiring board installation area 01) of the metal part near the bottom, and the rainwater that enters will directly flow to the installation area of the wiring board along the inclined surface, resulting in water entering the wiring board. Figure 1

[0041] As shown in Figure 2 , 3 , 4, the present application proposes an appliance box structure, which comprises: a first PCB assembly 2 (which can specifically include a PCB board and a side unsealed box body for mounting the PCB board) and a connecting plate 1, the first PCB assembly 2 is vertically arranged on the inner side plate of the air conditioner outdoor unit 100 (which specifically faces the side of the outdoor unit where the outdoor unit handle 5 is installed), one end of the connecting plate 1 is connected to the first PCB assembly 2 vertically, and the other end is connected below the handle on the side of the outdoor unit handle 5. At the same time, a rainproof opening 122 is provided on the plate surface of the connecting plate 1 near the handle side, and the lower edge of the rainproof opening 122 is connected to an inclined plate 123 bent towards the first PCB assembly 2, that is, the bottom of the inclined plate 123 is connected to the lower edge of the rainproof opening 122, and the top is inclined towards the first PCB assembly 2. The wiring board 4 (the connecting wires of the wiring board can also be connected through the rainproof opening when needed) is installed on the side of the inclined plate 123 facing the handle.

[0042] ​By providing a rainproof opening 122 near the handle on the connecting plate 1, and by installing the terminal block 4 on an inclined plate 123, the terminal block 4 is positioned away from the handle. This prevents rainwater seeping in from the gap between the handle and the outdoor unit from directly hitting the terminal block 4. Furthermore, the rainwater seeping in from the gap between the handle and the outdoor unit flows downwards along the sides of the rainproof opening 122 on the connecting plate 1 due to the rainproof opening 122. The inclined plate 123, where the terminal block 4 is mounted, does not directly contact the edges of the rainproof opening 122, thus preventing rainwater from flowing onto the terminal block 4. This achieves a rainproof effect for the terminal block 4.

[0043] like Figure 4 As shown, in a further embodiment, there is a gap between the two side edges of the inclined plate 123 and the two ends of the lower edge of the rainproof opening 122. That is, the two sides of the inclined plate 123 do not completely fit the two ends of the lower edge of the rainproof opening 122, thus forming a certain gap space in this area. By maintaining a gap between the two sides of the inclined plate 123 and the two ends of the lower edge of the rainproof opening 122, rainwater that may seep in from the handle side gap can flow along the surface of the connecting plate 1 to the position of the rainproof opening 122 without being forced to concentrate at the contact point between the inclined plate 123 and the lower edge of the rainproof opening 122. Instead, this rainwater can be naturally dispersed on both sides through the gap and continue to flow downward, thereby further reducing the risk of rainwater retention or accumulation. This enhances the waterproof and rainproof effect of the wiring plate 4 throughout the entire operation process and also improves the overall reliability and service life of the internal components of the air conditioner outdoor unit 100 electrical box under harsh weather conditions.

[0044] In a specific embodiment, the connecting plate 1 is bent into a first connecting portion 11 for mounting the second PCB board 3 (specifically, a filter board), and a second connecting portion 12 for mounting the terminal block 4. (See attached...) Figure 4 As can be seen, the upper region of the connecting plate 1 is relatively flat and matches the position of the first PCB assembly 2. This region is the first connecting part 11, which is used to securely mount the second PCB board 3, so that the second PCB board 3 can maintain a reasonable distance and positional relationship with the first PCB assembly 2, thereby achieving more orderly space utilization in circuit design and component layout. At the same time, the part of the connecting plate 1 extending to the handle side is bent again to form the second connecting part 12. The second connecting part 12 has a certain inclination or drooping tendency relative to the first connecting part 11, and is adjacent to the inclined plate 123 for mounting the terminal block 4.

[0045] Through the design of the bending partition, the first connecting part 11 and the second connecting part 12 are functionally independent and cooperate with each other: the first connecting part 11 provides a stable and compact mounting surface for the second PCB 3, so that a compactly stacked circuit layout is formed inside the air conditioner outdoor unit 100; and the second connecting part 12 provides a mounting environment for the terminal board 4 through its bending angle and position. In combination with the design of the inclined plate 123, not only can the terminal board 4 be stably fixed in a safer and waterproof area, but also the specification and neatness of the internal wiring of the outdoor unit can be improved to some extent, and clear partitioning and efficient utilization between components are achieved.

[0046] As shown in Figure 4 , 6 Specifically, the second connecting part 12 forms two flow guide strips 121 at the portions of the two side edges of the rainproof opening 122. The two flow guide strips 121 are symmetrically distributed at the edge of the second connecting part 12 of the connecting plate 1 and the rainproof opening 122 in the drawings. Specifically, the two flow guide strips 121 extend from top to bottom at the edge area of the rainproof opening 122 of the second connecting part 12. When water droplets penetrate to this area along the surface of the air conditioner outdoor unit 100 or the handle side, the flow guide strips 121 will divert the rainwater to both sides and downward through their own shape, avoiding the accumulation of rainwater in the terminal board 4 installation area or directly falling on the terminal board 4. This flow guide design cooperates with the inclined plate 123 to make the water flow naturally extend away from the terminal board 4 along the direction of the flow guide strips 121, thereby reducing the risk of component moisture and short circuit.

[0047] In a further embodiment, the middle part of the second connecting part 12 is bent outwardly downward to divide into two segments, so that this part forms a hierarchical and slightly outwardly expanding structure in space from the middle part downward. In the drawings Figure 5 As can be seen in the drawings, the connecting plate 1 has a multi-segment layout distributed front and back, the first connecting part 11 and the second connecting part 12 are connected to each other, and the middle and lower segments of the second connecting part 12 are obviously bent from inside to outside, so that two regions with different inclination angles are generated in the longitudinal direction, providing more reasonable space for installing the terminal board 4 and related components.

[0048] The upper region of the second connecting part 12 closely connects with the upper part of the outdoor unit handle 5, providing a high and stable support point for the installation of the connecting plate 1; below the middle part, the second connecting part 12 starts to bend outwardly to divide into two segments, so that the lowermost segment of this part tends to extend outwardly, forming an inclined interface that is conducive to wiring and component installation;

[0049] A connecting piece (not shown in the figure) extending upward at an angle is provided below the handle on the side of the outdoor unit handle 5. Its position is adapted to the inclined direction of the bottom of the second connecting part 12. This connecting piece, by engaging with the lower end of the second connecting part 12, achieves a fixed connection from the top to the bottom as an auxiliary support, thereby improving the rigidity and stability of the entire structure in the vertical direction.

[0050] Through this multi-segment partitioning and tilting angle variation design, the second connecting part 12 achieves optimal space utilization while meeting the upper fixing requirements, by bending outward from the middle and below.

[0051] In a specific embodiment, there is a certain space allowance between the first connecting part 11 and the front side wall of the outdoor unit, that is, a ventilation gap is formed. Figure 4 The left side area of ​​the first connecting part 11 allows air to circulate smoothly inside the outdoor unit; this ventilation gap forms a relatively independent ventilation channel with the connecting plate 1 and its connected PCB components, which is conducive to the formation of natural convection or auxiliary ventilation of internal air between the condenser, fan and electronic components, thereby effectively reducing the impact of high temperature accumulation on the performance and life of electronic components.

[0052] The inclusion of ventilation openings allows for good airflow inside the electrical box. When the outdoor unit 100 of the air conditioner is operating, its internal electronic components and control circuits generate heat. Proper ventilation helps slow down the rate of temperature rise, thereby keeping the internal components operating within a reasonable temperature range and improving the system's stability and lifespan.

[0053] In a specific embodiment, the edge of the first connecting portion 11 that connects to the first PCB assembly 2 is bent to form a connecting edge 112. (See attached image) Figure 3 , 4 As shown in Figure 7, the connecting edge 112 fits tightly against the first PCB assembly 2, and a reinforcing step 113 is formed by bending between the connecting edge 112 and the second PCB board 3. This reinforcing step 113 serves to create a "vertical drop" or "support section" in the longitudinal direction, thereby improving the mechanical stability and structural rigidity of the connection. Through the design of this reinforcing step 113, the connecting plate 1 gains additional support points and positioning surfaces in the mating area with the second PCB board 3, allowing the second PCB board 3 to not only be stably installed at the ideal height and angle, but also to maintain a more stable fixed state when subjected to external factors such as vibration, impact, or temperature changes. This reinforcing step 113 acts like a miniature "step" between the connecting part and the PCB board, ensuring that the connection is less prone to deformation and loosening under external forces.

[0054] In combination with the overall structure described above and the details in the drawings, the reinforcing step 113 cooperates with the multiple bends and inclines on the connecting plate 1, making the PCB layout and support system inside the electrical box more reasonable and compact. This not only improves the space utilization efficiency inside the electrical box, but also improves the reliability and service life of the electronic control part of the air conditioner outdoor unit 100 under long-time and high-load operation.

[0055] In a specific embodiment, the opening 111 is installed in the structure of the first connecting part 11, so that the second PCB board 3 can be quickly and firmly positioned and installed through the opening. By setting positioning holes or reinforcing ribs around the installation opening 111, the stiffness and stability of the installation point can be effectively enhanced. After the second PCB board 3 is installed in place through the installation opening 111, not only can the spatial separation and functional partitioning of the first PCB assembly 2 be achieved, but also convenience can be provided for subsequent maintenance, disassembly or upgrading. The installation of such an installation opening 111 can maximize the flexibility of the layout of the internal electronic components of the air conditioner outdoor unit 100 and the maintainability without affecting the overall structural strength in actual use.

[0056] In a specific embodiment, the connecting plate 1 is vertically bent into a first connecting part 11 and a second connecting part 12, and the first connecting part 11 is vertically connected to the top of the first PCB assembly 2. The first connecting part 11 is divided into the first connecting part 11 at the top and the second connecting part 12 at the bottom from a whole flat plate. The first connecting part 11 is fixedly connected to the top of the first PCB assembly 2 in a vertical manner, which helps to form a clear upper and lower structure layout inside the air conditioner outdoor unit 100. It is beneficial to reserve sufficient space and cooling conditions for the first PCB assembly 2 and related electronic modules on the upper layer, while providing an independent area for the arrangement of the second PCB board 3 or the wiring board 4 on the lower layer. The direct vertical connection of the first connecting part 11 to the first PCB assembly 2 not only improves the overall structural stability, but also helps to ensure that the PCB board and the connecting plate can still maintain reliable support and positioning when subjected to vibration, impact or installation errors.

[0057] The present application also proposes an air conditioner, which includes necessary components such as an air conditioner outdoor unit and an air conditioner indoor unit, and the air conditioner outdoor unit includes the above-mentioned electrical box structure.

[0058] By using this structure, the air conditioner effectively avoids rainwater from entering the wiring board and reduces the risk of short circuit through reasonable rain-proof openings, flow guide strips and inclined plates.

[0059] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof, but do not preclude the presence or addition of one or more other features, steps, operations, devices, components and / or combinations thereof.

[0060] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application unless specifically so stated. It is to be understood that the drawings are not necessarily to scale of the various parts of the device shown therein. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail in order to avoid obscuring the present application. In the examples shown and discussed herein, any specific values should be interpreted as merely illustrative and not as a limitation. Other examples of the exemplary embodiments can have different values. It is noted that like numbers and letters on the figures identify like parts throughout the several views, and thus, once an item is defined in one figure, it is not necessary to discuss it further in connection with other figures unless explicitly stated to do so.

[0061] In the description of the present application, it is to be understood that the orientation or positional relationships indicated by terms such as "front", "back", "up", "down", "left", "right", "lateral", "vertical", "horizontal", "top", "bottom", and the like are generally based on the orientation or positional relationships shown in the drawings, and are used only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of protection of the present application. The orientation terms "inner" and "outer" refer to the inner and outer relative to the contour of the components themselves.

[0062] For purposes of the description hereinafter, the terms "upper", "lower", "right", "left", "rear", "front", "vertical" and "horizontal" as can be perceived herein relative to the accompanying drawings refer to the orientation of the components being described. However, it is to be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device described herein relative to the other device or structure is inverted, then a spatially relative term such as "above" can be interpreted as meaning "below" or "below" can be interpreted as meaning "above". The device can also be oriented in other ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0063] In addition, it should be pointed out that the use of the terms "first", "second" and the like in connection with various elements is merely intended for identification, and does not constitute a special meaning, and therefore cannot be interpreted as a limitation on the scope of protection of the present application.

[0064] The preferred embodiments of the present application are described above in detail. The present application, however, is not limited to the above embodiments, but can be variously modified and changed by those skilled in the art without departing from the scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the present application.

Claims

1. An electrical box structure, comprising: The first PCB assembly is vertically arranged in the outdoor unit, and the connecting plate is connected between the first PCB assembly and the lower part of the outdoor unit handle, characterized in that the part of the connecting plate close to the outdoor unit handle is provided with a rainproof opening, the lower edge of the rainproof opening is connected to the inclined plate for installing the terminal block in the direction of the first PCB assembly; the gap is formed between the two side edges of the inclined plate and the two ends of the lower edge of the rainproof opening; the connecting plate is bent into the first connecting part for installing the second PCB plate and the second connecting part for installing the terminal block; the second connecting part forms two flow guide strips on the part of the two side edges of the rainproof opening; the upper part of the second connecting part is connected to the upper part of the handle on the outdoor unit handle side, and the lower part of the handle on the outdoor unit handle side is provided with the connecting sheet which is inclined upward and extends to connect the bottom of the second connecting part.

2. The electrical box structure of claim 1, wherein, The gap is left between the first connecting part and the front side wall of the outdoor unit to form the ventilation gap.

3. The electrical box structure of claim 1, wherein, The edge of the first connecting part connecting the first PCB assembly is bent to form the connecting edge, and the connecting edge and the second PCB plate are bent to form the reinforcing step.

4. The electrical box structure of claim 1, wherein, The first connecting part is provided with the mounting opening for installing the second PCB plate.

5. The electrical box structure of claim 1, wherein, The connecting plate is vertically bent into the first connecting part and the second connecting part, and the first connecting part is vertically connected to the top of the first PCB assembly.

6. An air conditioner characterized by comprising: The outdoor unit of the air conditioner comprises the electric appliance box structure according to any one of claims 1 to 5.

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