A split-type electrical control box and its variable frequency air conditioner

Abstract

This utility model provides a split-type electrical control box and its corresponding inverter air conditioner. The split-type electrical control box includes a main electrical control box and an inverter electrical control box. The main electrical control box has a notch, and the inverter electrical control box is movably disposed within the notch, allowing for a movable and optimized structure. During product manufacturing and maintenance, it is no longer necessary to remove the main electrical control box and the side panel of the inverter air conditioner's casing; the movable structural design allows for easy assembly and maintenance of the inverter electrical control box. The overall structure of this utility model is simple and efficient, effectively reducing the difficulty of product processing, manufacturing, and maintenance, and improving production efficiency.

Description

Technical Field

[0001] This utility model relates to an electrical control box, more particularly to a split electrical control box, and further to an inverter air conditioner including the split electrical control box. Background Technology

[0002] The MatrixAir series are medium to large-sized room-level precision air conditioners, widely applicable to data centers in the financial and securities industries, IDC (Internet Data Center) server rooms, telecommunications industry switching rooms and data centers, and large and medium-sized IT enterprise data centers. Due to the excessive size of these medium to large-sized air conditioner units, installation problems such as inability to fit into elevators can occur at customer sites. Therefore, reducing the size of medium to large-sized room-level air conditioners is a major development trend in the industry.

[0003] To reduce the size of air conditioner units, the existing fixed-frequency air conditioner's small frame is being modified into a variable-frequency air conditioner. However, using a variable-frequency compressor requires a matching inverter control box, and due to space constraints, it's impossible to assemble the added inverter control box within a single control box. The current approach is to use a fixed assembly solution, such as... Figure 4 As shown. This fixed assembly scheme makes the inverter control box unmaintainable. If problems arise later in the use of the air conditioner, after-sales personnel will need to remove the main control box and the side panel of the inverter air conditioner's casing in order to perform maintenance, which greatly increases the difficulty of maintenance.

[0004] Furthermore, during production in the workshop, if the cables of the inverter control box are not installed properly, adjustments to the cables and electrical components will require the removal of the relevant sheet metal parts and the disassembly of the inverter control box. This will significantly increase production time and hinder product processing, production, and maintenance. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a split electrical control box, which aims to reduce the difficulty of product processing, production and maintenance and improve production efficiency through a simple and efficient optimized structure; on this basis, it further provides an inverter air conditioner including the split electrical control box.

[0006] In response, this utility model provides a split electrical control box, including: a main electrical control box and a frequency converter electrical control box, wherein the main electrical control box is provided with a notch, and the frequency converter electrical control box is movably disposed in the notch.

[0007] A further improvement of this utility model is that the notch is provided at the first end of the main electrical control box and extends toward the side of the main electrical control box.

[0008] A further improvement of this utility model is that the inverter control box includes an inverter.

[0009] This utility model also provides a variable frequency air conditioner, including an air conditioner casing and a split electrical control box as described above. The split electrical control box is connected to the air conditioner casing, wherein the main electrical control box is fixedly installed inside the air conditioner casing, and the variable frequency control box is movably installed inside the air conditioner casing.

[0010] A further improvement of this utility model is that the inverter control box is located inside the air duct of the air conditioning unit.

[0011] A further improvement of this utility model is that it also includes a limiting baffle, which is connected to the inverter control box and the air conditioner housing respectively, and the limiting baffle is disposed at the first end of the inverter control box.

[0012] A further improvement of this utility model is that it also includes a slide rail, the air conditioner housing is provided with a support beam, and the frequency converter control box is connected to the support beam through the slide rail.

[0013] A further improvement of this utility model is that it also includes a limiting component, which is disposed at the second end of the inverter control box.

[0014] A further improvement of this utility model is that the limiting component includes a limiting insert plate and a limiting block. The limiting insert plate is fixed to the second end of the inverter control box, and the limiting block is fixed to the support beam. The position and shape of the limiting insert plate correspond to the position and shape of the limiting block, respectively.

[0015] A further improvement of this utility model is that it also includes a first baffle and / or a second baffle, wherein the first baffle is disposed covering the first end of the inverter control box, and the second baffle is disposed on the lower side of the main control box.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: It includes a main electrical control box and a frequency converter electrical control box. The main electrical control box has a notch, and the frequency converter electrical control box is movably disposed within the notch. This allows the frequency converter electrical control box to achieve a movable, optimized structure through the notch. During product manufacturing and maintenance, it is no longer necessary to remove the main electrical control box and the side panel of the inverter air conditioner's casing. The movable structural design allows for easy assembly and maintenance of the frequency converter electrical control box. The overall structure of this utility model is simple and efficient, effectively reducing the difficulty of product processing, manufacturing, and maintenance, and improving production efficiency. Attached Figure Description

[0017] Figure 1 This is an exploded view of the structure of one embodiment of the split-type electrical control box of this utility model; Figure 2 This is a schematic diagram of the structure of one embodiment of the variable frequency air conditioner of this utility model; Figure 3 This is a schematic diagram illustrating the effect of a pull-out structure in one embodiment of the variable frequency air conditioner of this utility model; Figure 4 This is a structural diagram of existing technology; Figure 5 This is a front view structural diagram of one embodiment of the variable frequency air conditioner of this utility model; Figure 6 This is a partial structural enlarged schematic diagram of an embodiment of the variable frequency air conditioner of this utility model; Figure 7 This is a schematic diagram of an optimized structure of an embodiment of the variable frequency air conditioner of this utility model; Figure 8 This is a schematic diagram of another embodiment of the variable frequency air conditioner of this utility model; Figure 9 This is a schematic diagram illustrating an application scenario where multiple air conditioners provide cooling for a single computer room.

[0018] Attached diagram labels: 1-Air conditioner housing; 101-Support beam; 2-Main electrical control box; 201-Notch; 3-Inverter electrical control box; 301-Handle; 4-Limit baffle; 5-Slide rail; 6-Limit assembly; 601-Limit insert plate; 602-Limit block; 603-Insert end; 604-Insert hole; 7-First baffle; 8-Second baffle; 9-Air valve. Detailed Implementation

[0019] In the description of this utility model, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this utility model and simplifying the description, and does 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, and therefore should not be construed as a limitation of this utility model. If a certain technical feature is referred to as "set," "fixed," "connected," or "installed" on another technical feature, it can be directly set, fixed, or connected to the other technical feature, or it can be indirectly set, fixed, connected, or installed on the other technical feature.

[0020] In the description of this utility model, the term "several" means one or more; the term "multiple" means two or more; the terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number; and the terms "above," "below," and "within" should be understood as including the stated number. The terms "first," "second," etc., should be understood as being used only to distinguish identical or similar technical feature names, and should not be interpreted as implying / indicating the relative importance of the technical features, the number of technical features, or the sequential relationship between the technical features.

[0021] The preferred embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] like Figures 1 to 3 , Figures 5 to 8 As shown, this embodiment provides a split electrical control box, including: a main electrical control box 2 and a frequency converter electrical control box 3. The main electrical control box 2 is provided with a notch 201, and the frequency converter electrical control box 3 is movably disposed in the notch 201.

[0023] In this embodiment, a notch 201 is provided on the main electrical control box 2, allowing the inverter electrical control box 3 to achieve a movable optimized structure through the notch 201. This movable structure includes, but is not limited to, a pull-out design. During product manufacturing and maintenance, it is no longer necessary to remove the side panels of the main electrical control box 2 and the air conditioning unit 1 of the inverter air conditioner; the movable structural design allows for the assembly and maintenance of the inverter electrical control box 3.

[0024] Optionally, in this embodiment, the notch 201 is located at the first end of the main electrical control box 2 and extends towards the side of the main electrical control box 2. The first end of the main electrical control box 2 may refer to the front end of the main electrical control box 2, also known as the front side. The notch 201 extends towards the side of the main electrical control box 2 to facilitate the pull-out installation of the frequency converter electrical control box 3 within the notch 201.

[0025] Optionally, the inverter control box 3 described in this embodiment includes an inverter.

[0026] like Figures 1 to 9 As shown, this embodiment also provides a variable frequency air conditioner, including an air conditioner housing 1 and a split electrical control box as described above. The split electrical control box is connected to the air conditioner housing 1. The main electrical control box 2 is fixedly installed inside the air conditioner housing 1, and the variable frequency drive electrical control box 3 is movably installed inside the air conditioner housing 1.

[0027] In this embodiment, the air conditioner casing 1 refers to the casing of an inverter air conditioner. The inverter air conditioner includes the air conditioner casing 1 and a split electrical control box. The split electrical control box includes a main electrical control box 2 and a movable inverter electrical control box 3. The movable design in this embodiment can be a pull-out type. The main electrical control box 2 refers to the electrical control box including the main control board, switching power supply, and other components. This main electrical control box 2 is not pull-out and can be optionally located on the front of the air conditioner casing 1, with a notch 201 for the side-mounted inverter electrical control box 3 to be pulled out. The inverter electrical control box 3 refers to the side-mounted, pull-out inverter electrical control box, which is the electrical control box containing the inverter.

[0028] In this embodiment, components requiring heat dissipation are housed in the side-mounted inverter control box 3. This control box 3 is a pull-out unit placed within the air cavity / duct of the air conditioning unit 1 for heat dissipation. During normal operation, the inverter control box 3 is located inside the air conditioning unit 1 and within the return air duct. Therefore, the airflow from the return air vent can be used to dissipate heat from the inverter, ensuring that the inverter control box 3 operates at a safe temperature. Components without heat dissipation requirements are housed in the front-mounted main control box 2, allowing for separate management. When upgrading the control box, the air conditioning unit 1's casing is reduced, resulting in a very compact space. Therefore, this embodiment features a split design for the control box, comprising the front-mounted main control box 2 and the side-mounted inverter control box 3. Furthermore, the side space of the main control box 2 is fully utilized to achieve a pull-out structure design for the inverter control box 3, resulting in a more rational overall layout and higher space utilization. Furthermore, temperature feedback devices such as temperature sensors can be installed in the components inside the inverter control box 3. When the internal temperature is too high, the fan speed can be increased to increase the airflow and thus dissipate heat from the internal components, thereby better ensuring the heat dissipation effect of the inverter control box 3.

[0029] Furthermore, during the production and maintenance of the product, it is no longer necessary to remove the side panel of the air conditioner casing 1 and the main electrical control box 2 on the front of the inverter air conditioner. The inverter electrical control box 3 can be assembled and maintained through the movable structural design. The overall structure of this embodiment is simple and efficient, effectively reducing the difficulty of product processing, production and maintenance, and improving its production efficiency.

[0030] like Figure 1 , Figure 5 and Figure 6As shown, this embodiment also includes a limiting baffle 4, which is connected to both the inverter control box 3 and the air conditioner housing 1, to fix and limit the inverter control box 3 at the front end. Therefore, the limiting baffle 4 is located at the first end of the inverter control box 3, which refers to the front end, also known as the front side. Optionally, the first end of the inverter control box 3 may also be equipped with a handle 301, also known as a pull handle, to facilitate pulling and retracting. When assembly or maintenance of the inverter control box 3 is required, simply loosen the limiting baffle 4, and pull / retract the inverter control box 3 using the handle 301. This allows for direct assembly and maintenance of the inverter control box from the front of the main control box, i.e., directly from the front of the inverter air conditioner. With the inverter control box 3 pulled out / retracted, the overall structure is as follows: Figure 3 As shown.

[0031] like Figure 1 and Figure 7 As shown, optionally, this embodiment also includes a slide rail 5. The air conditioner housing 1 is provided with a support beam 101. The inverter control box 3 is connected to the support beam 101 through the slide rail 5, thereby realizing the slide rail pull-out structure of the inverter control box 3 and improving the smoothness of inserting and pulling out the inverter control box 3.

[0032] like Figure 1 and Figure 7 As shown, optionally, this embodiment also includes a limiting component 6, which is disposed at the second end of the inverter control box 3. The second end of the inverter control box 3 refers to the rear end of the inverter control box 3, that is, the end away from the limiting baffle 4, thereby providing a fixing and limiting function for the rear end of the inverter control box 3 and preventing the inverter control box 3 from being inserted too deeply.

[0033] like Figure 1 and Figure 7 As shown, the limiting component 6 in this embodiment includes a limiting insert plate 601 and a limiting block 602. The limiting insert plate 601 is fixed to the second end of the inverter control box 3, and the limiting block 602 is fixed to the support beam 101. The position and shape of the limiting insert plate 601 correspond to the position and shape of the limiting block 602, respectively. More specifically, in this embodiment, the limiting insert plate 601 has an insertion end 603 near the limiting block 602, and the limiting block 602 has an insertion hole 604 corresponding to the insertion end 603, thereby better realizing the guiding, fixing, and limiting functions of the inverter control box 3 at its rear end.

[0034] like Figure 8As shown, when an air valve 9 needs to be installed on the top of the air conditioner unit 1, a proper overall sealing design for the air conditioner unit 1 is required. Since the air conditioner is placed indoors, the room needs to be cooled by the air conditioner. In the case of multiple air conditioners providing cooling for a single server room, through... Figure 9 A simple illustration is provided. Figure 9 In the diagram, dashed arrows represent hot air, and solid arrows represent cold air. Below the air conditioner is the air duct, meaning the internal spaces of air conditioners A and B are interconnected. Air conditioners A and B refer to the aforementioned inverter air conditioners. When only air conditioner A is turned on, its top air valve 9 opens, allowing it to absorb hot air from the room, exchange heat inside, and then release as cold air into the machine room. Air conditioner B is off and not running, and its top air valve 9 is closed. Without a sealing design, cold air from the air duct might seep into air conditioner B, causing a temperature exchange between the cold air inside air conditioner B and the hot air outside in the machine room, resulting in condensation on the air conditioner's surface. Therefore, a separate baffle is needed to seal and isolate the air conditioner.

[0035] Optional, such as Figure 8 As shown, this embodiment also includes a first baffle 7 and / or a second baffle 8. The first baffle 7 covers the first end of the inverter control box 3, including the inverter control box 3 and the notch 201. The second baffle 8 is located on the lower side of the main control box 2, thereby isolating hot and cold air from different locations and preventing internal airflow from the air conditioning unit 1, which could lead to condensation on the control box or its door panel. Optionally, the inner sides of the first baffle 7 and the second baffle 8 are further lined with insulation cotton to further ensure their sealing effect.

[0036] The specific embodiments described above are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes, but is not limited to, these specific embodiments. All equivalent changes made in accordance with the shape and structure of this utility model are within the protection scope of this utility model.

Claims

1. A split electrical control box, characterized in that, include: The main control box and the inverter control box are provided. The main control box has a notch, and the inverter control box is movably disposed in the notch.

2. The split electric control box of claim 1, wherein, The notch is located at the first end of the main electrical control box and extends toward the side of the main electrical control box.

3. The split electric control box of claim 2, wherein, The inverter control box includes an inverter.

4. A variable frequency air conditioner, characterized by, The device includes an air conditioning unit and a split electrical control box according to any one of claims 1-3, wherein the split electrical control box is connected to the air conditioning unit, wherein the main electrical control box is fixedly disposed inside the air conditioning unit, and the inverter electrical control box is movably disposed inside the air conditioning unit.

5. The variable refrigerant flow air conditioner of claim 4, wherein, The inverter control box is located inside the air duct of the air conditioning unit.

6. The variable refrigerant flow air conditioner of claim 4, wherein, It also includes a limiting baffle, which is connected to the inverter control box and the air conditioner housing respectively, and the limiting baffle is disposed at the first end of the inverter control box.

7. The variable refrigerant flow air conditioner of claim 4, wherein, It also includes a slide rail, and the air conditioner housing is provided with a support beam. The inverter control box is connected to the support beam through the slide rail.

8. The variable refrigerant flow air conditioner of claim 4, wherein, It also includes a limiting component, which is disposed at the second end of the inverter control box.

9. The variable refrigerant flow air conditioner of claim 8, wherein, The limiting component includes a limiting plate and a limiting block. The limiting plate is fixed to the second end of the inverter control box, and the limiting block is fixed to the support beam. The position and shape of the limiting plate correspond to the position and shape of the limiting block, respectively.

10. The variable refrigerant flow air conditioner of claim 4, wherein, It also includes a first baffle and / or a second baffle, the first baffle being disposed over the first end of the inverter control box, and the second baffle being disposed on the lower side of the main control box.

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