Multi-split electric cabinet and multi-split air conditioning system

Abstract

The utility model relates to the technical field of air conditioners, in particular to a multi-split electric cabinet and a multi-split air conditioning system. The multi-connected electric control box comprises an electric control box body, an electric control element is arranged in the electric control box body, the electric control element comprises a filter, and a notch is formed in the position, corresponding to the filter, of the surface of the electric control box body; the heat dissipation back plate comprises a first heat conduction part and a second heat conduction part, and the second heat conduction part covers the notch and is in direct contact with the filter; the heat dissipation pipe section is arranged on the first heat conduction part of the heat dissipation back plate, and refrigerant media circulate in the heat dissipation pipe section. According to the scheme, the defects that in the prior art, a filter is low in heat dissipation efficiency and unstable in heat dissipation effect are overcome, and more efficient heat dissipation performance and higher system stability are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a multi-split electric control box and a multi-split air conditioning system. Background Art

[0002] With the development and widespread application of multi-split electronic control cabinet technology, filters, as key components, are crucial for ensuring the stability and lifespan of electronic equipment. The filter's primary function is to eliminate clutter signals in the circuit, ensuring proper system operation. However, if the heat generated during operation is not effectively controlled, it can cause the filter to overheat, affecting its performance or even causing damage.

[0003] Air cooling is the most commonly used filter cooling method in the market. This involves using fans and other cooling devices to circulate air around the filter to reduce its temperature. This solution offers the advantages of simplicity and low cost, but its cooling effectiveness can be significantly reduced in high ambient temperatures or when the fan fails.

[0004] Therefore, although air cooling can meet the basic heat dissipation needs in the short term, its heat dissipation efficiency is limited under long-term high-load operation conditions, which can easily lead to filter overheating. Utility Model Content

[0005] The utility model provides a multi-split electric control box and a multi-split air-conditioning system, which are used to solve the defects of low heat dissipation efficiency and unstable heat dissipation effect of filters in the prior art, and achieve more efficient heat dissipation performance and higher system stability.

[0006] The utility model provides a multi-split electric control box, comprising: an electric control box body, in which an electric control element is arranged, the electric control element includes a filter, and a notch is opened on the surface of the electric control box body at a position corresponding to the filter; a heat dissipation back plate, the heat dissipation back plate includes a first heat conduction part and a second heat conduction part, the second heat conduction part covers the notch and directly contacts the filter; a heat dissipation pipe section, which is arranged on the first heat conduction part of the heat dissipation back plate, and a refrigerant medium flows through the heat dissipation pipe section.

[0007] According to a multi-split electric control box provided by the utility model, the second heat-conducting portion of the heat dissipation back plate is provided with mounting holes adapted to the filter; the filter is directly mounted on the heat dissipation back plate through the mounting holes.

[0008] According to a multi-split electric control box provided by the utility model, the size of the notch is larger than the projection range of the filter on the second heat conducting part.

[0009] According to a multi-split electrical control box provided by the utility model, the filter and the heat dissipation pipe section are both located on the side of the heat dissipation backplate facing the inside of the electrical control box; the heat dissipation pipe section is arranged between the first heat conducting part and the outer surface of the electrical control box, or at least a portion of the heat dissipation pipe section is located inside the electrical control box.

[0010] According to a multi-split electric control box provided by the utility model, the first heat conducting portion is provided with a pipe passage, and at least a portion of the heat dissipation pipe section passes through the pipe passage.

[0011] According to a multi-split electric control box provided by the utility model, the first heat conducting portion is provided with a plurality of straight pipe passages.

[0012] According to a multi-split electric control box provided by the utility model, the heat dissipation pipe section includes a straight pipe section and a curved pipe section; the straight pipe section extends in the pipe passage, and the curved pipe section is connected between the ends of the straight pipe section.

[0013] According to a multi-split electric control box provided by the utility model, the cross-section of the straight pipe section of the heat dissipation pipe section is flat.

[0014] According to a multi-split electrical control box provided by the utility model, the shape of the notch is adapted to the contour shape of the heat dissipation back plate, the heat dissipation back plate is provided with a plurality of assembly holes distributed along the edge, and the heat dissipation back plate is installed in the notch through the assembly holes.

[0015] The utility model also provides a multi-split air-conditioning system, comprising the multi-split electric control box described in any one of the above embodiments.

[0016] The multi-split electrical control box and multi-split air conditioning system provided by the present invention address the low heat dissipation efficiency and unstable heat dissipation effects of the prior art filters by providing notches on the surface of the electrical control box for the filter locations, and utilizing a heat dissipation backplate comprising a first heat conducting portion, a second heat conducting portion, and a heat dissipation pipe section through which a refrigerant medium flows. Specifically, the second heat conducting portion directly contacts the filter, rapidly absorbing heat generated during operation and transferring it to the heat dissipation pipe section via the connected first heat conducting portion. The refrigerant medium (e.g., coolant) within the heat dissipation pipe section efficiently removes the heat, thereby ensuring that the filter's operating temperature remains within a safe range. Compared to traditional air-cooled heat dissipation methods, this solution no longer relies solely on ambient temperature and fans. Instead, by adding direct heat conduction and liquid cooling, it provides more stable and efficient heat dissipation performance, thereby improving the overall stability of the system and extending the service life of the filter and the multi-split air conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural schematic diagram of a multi-split electric control box provided by the utility model.

[0019] Figure 2 It is a front structural schematic diagram of the heat dissipation back plate of the multi-split electric control box provided by the utility model.

[0020] Figure 3 The utility model is a schematic diagram of the back structure of the heat dissipation back plate of the multi-split electric control box.

[0021] Figure 4 yes Figure 2 The top view of the heat dissipation back plate is shown.

[0022] Reference numerals:

[0023] 10. Electric control box; 11. Filter; 20. Heat dissipation back plate; 21. First heat conduction part; 22. Second heat conduction part; 23. Installation hole; 24. Pipe passage; 25. Assembly hole; 30. Heat dissipation pipe section; 31. Straight pipe section; 32. Curved pipe section. DETAILED DESCRIPTION

[0024] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present invention. In addition, the terms "first", "second" and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. It should also be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0026] The following combination Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The specific implementation of the multi-split electric control box of the utility model is described.

[0027] like Figure 1 and Figure 2 As shown, the present invention provides a multi-split electrical control box, comprising: an electrical control box 10, wherein the electrical control components, including a filter 11, are disposed within the electrical control box 10. A notch is formed on the surface of the electrical control box 10 at a position corresponding to the filter 11; a heat dissipation backplate 20, wherein the heat dissipation backplate 20 comprises a first heat-conducting portion 21 and a second heat-conducting portion 22, wherein the second heat-conducting portion 22 covers the notch and directly contacts the filter 11; and a heat dissipation pipe section 30, which is disposed on the first heat-conducting portion 21 of the heat dissipation backplate 20 and through which a refrigerant flows. Through direct contact, the second heat-conducting portion 22 can quickly absorb heat generated by the filter 11 and transfer it to the refrigerant within the heat dissipation pipe section 30 through the first heat-conducting portion 21, thereby achieving efficient heat conduction and heat dissipation. Compared to traditional air cooling methods that rely on ambient temperature fluctuations and fan operation, the heat dissipation solution of the present invention is unaffected by environmental factors and can provide more stable and reliable heat dissipation performance.

[0028] Specifically, the electrical control housing 10 is equipped with various electronically controlled components, including the aforementioned filter 11. To improve heat dissipation from the filter 11, the present invention provides a notch on the surface of the electrical control housing 10, corresponding to the location of the filter 11. This notch allows the filter 11 to directly contact the heat dissipation backplate 20, thereby improving heat transfer efficiency. The heat dissipation backplate 20 is primarily composed of a first heat-conducting portion 21 and a second heat-conducting portion 22. The second heat-conducting portion 22 directly contacts the filter 11 through the notch in the electrical control housing 10, effectively absorbing the heat generated by the filter 11 during operation. The first heat-conducting portion 21 is connected to a heat dissipation pipe section 30, responsible for transferring heat from the second heat-conducting portion 22 to the heat dissipation pipe section 30. A refrigerant, such as water or another high-efficiency coolant, flows within the heat dissipation pipe section 30. After heat is transferred from the second heat-conducting portion 22 to the first heat-conducting portion 21, it is then transferred from the first heat-conducting portion 21 to the refrigerant within the heat dissipation pipe section 30. The refrigerant removes the heat, effectively cooling the filter 11. It is understandable that the multi-split electrical control box can also be provided with ventilation holes for circulating internal and external air on the basis of the above-mentioned heat dissipation structure. When a fan is provided to provide power, the multi-split electrical control box can combine traditional air cooling and liquid cooling methods to keep the filter 11 running at a lower operating temperature, which can significantly reduce failures caused by overheating, thereby extending the service life of the filter 11 and even the entire multi-split system.

[0029] like Figure 3 As shown, according to a multi-split electrical control box provided by the present invention, the second heat-conducting portion 22 of the heat dissipation backplate 20 is provided with a mounting hole 23 adapted for the filter 11; the filter 11 is directly mounted on the heat dissipation backplate 20 through the mounting hole 23, ensuring good physical contact between the filter 11 and the heat dissipation backplate 20. Moreover, by pre-designing the mounting hole 23 on the heat dissipation backplate 20, the installation of the filter 11 becomes easier. Therefore, by providing the heat dissipation backplate 20 with a mounting hole 23 adapted for the filter 11 and allowing the filter 11 to be directly mounted on the heat dissipation backplate 20, not only is the installation process simplified, but the heat conduction path is also optimized, thereby improving the heat dissipation efficiency and the overall stability of the system.

[0030] According to a multi-unit electrical control box provided by the utility model, the size of the slot is larger than the projection range of the filter 11 on the second heat-conducting part 22. The larger slot size provides sufficient installation space for the filter 11, which not only makes the installation process easier, but also facilitates subsequent maintenance and inspection operations. The slot size is larger than the projection range of the filter 11 on the second heat-conducting part 22, making it easier to align the filter 11 with the installation position, and the installation can be completed without precise alignment, which simplifies the installation process. Moreover, since the filter 11 is not in direct contact with the electrical control box body 10, but is in indirect contact through the second heat-conducting part 22, this reduces the heat directly transferred from the electrical control box body 10 to the filter 11. Even if the temperature of the electrical control box body 10 itself rises due to heat generated by other components, it will not directly affect the temperature of the filter 11, thereby helping to maintain the filter 11 operating within a relatively stable temperature range.

[0031] Preferably, if Figure 1 and Figure 2 As shown, according to the utility model, a multi-split electrical control box has a slot shape that conforms to the contour of a heat sink backplate 20. The heat sink backplate 20 is provided with a plurality of mounting holes 25 distributed along its edge, and the heat sink backplate 20 is mounted in the slot via the mounting holes 25. The multiple mounting holes 25 allow the heat sink backplate 20 to be securely mounted in the slot using screws or other fasteners. This not only ensures the stability of the heat sink backplate 20 but also facilitates its installation and removal, making it easier to maintain and replace. Because the heat sink backplate 20 conforms to the shape of the slot and has the mounting holes 25 distributed along its edge, installation is completed by simply aligning the heat sink backplate 20 with the slot and securing it with fasteners.

[0032] In this embodiment, because the heat dissipation backplate 20 not only serves as a heat dissipation component but also directly forms a portion of the sidewall of the electronic control box 10, more space is left inside the heat dissipation backplate 20 for installing the heat dissipation pipe section 30 and other electronic control components, such as the filter 11. Furthermore, in areas outside the heat dissipation pipe section 30, the first heat conducting portion 21 and the second heat conducting portion 22 of the heat dissipation backplate 20 can also be provided with other mounting holes for installing electronic control components. This allows the heat dissipation backplate 20 to be used not only for installing the filter 11, but also for supporting the installation of other electronic control components, thereby increasing the versatility of the heat dissipation backplate 20.

[0033] like Figure 3 and Figure 4As shown, according to a multi-split electrical control box provided by the present invention, the filter 11 and the heat dissipation pipe section 30 are both located on the side of the heat dissipation back plate 20 facing the interior of the electrical control box 10. That is, the filter 11 is directly mounted on the second heat-conducting portion 22 of the heat dissipation back plate 20, while the heat dissipation pipe section 30 is located on the first heat-conducting portion 21 of the heat dissipation back plate 20, and both are located on the side of the heat dissipation back plate 20 facing the interior of the electrical control box 10. If the projection of the notch does not cover the first heat-conducting portion 21, the heat dissipation pipe section 30 can be disposed between the first heat-conducting portion 21 and the outer surface of the electrical control box 10. Alternatively, in a preferred embodiment, at least a portion of the heat dissipation pipe section 30 is located within the electrical control box 10, which helps isolate the heat dissipation pipe section 30 from the external environment, reduces the impact of external ambient temperature changes on the heat dissipation effect, and ensures more stable heat dissipation performance. By arranging both the filter 11 and the heat dissipation pipe section 30 on the side of the heat dissipation back plate 20 facing the inside of the electronic control box 10, not only is the heat conduction path optimized and the heat dissipation efficiency improved, but by placing the heat dissipation pipe section 30 on the inside of the box, heat exchange with the external environment is reduced, further improving the stability and reliability of heat dissipation.

[0034] According to the multi-split electrical control box provided by the present invention, the first heat conducting portion 21 is provided with a pipe passage 24, through which at least a portion of the heat dissipation pipe segment 30 passes. Through these pipe passages 24, the heat dissipation pipe segment 30 can be in close contact with the first heat conducting portion 21 and arranged along a predetermined path, thereby ensuring good heat conduction performance.

[0035] According to the multi-split electrical control box provided by the present invention, the first heat conducting portion 21 is provided with multiple straight pipe passages 24. The design of the straight pipe passages 24 simplifies and expedits the installation of the heat dissipation pipe segments 30, allowing the heat dissipation pipe segments 30 to be directly inserted into these straight passages. Each of the multiple pipe passages 24 can be provided with multiple heat dissipation pipe segments 30, or preferably, a single heat dissipation pipe segment 30 extends in a curved shape, sequentially passing through the multiple heat dissipation pipe segments 30.

[0036] like Figure 3As shown, according to a multi-unit electric control box provided by the present invention, the heat dissipation pipe section 30 includes a straight pipe section 31 and a curved pipe section 32; the straight pipe section 31 extends within the pipe passage 24, and the curved pipe section 32 is connected between the ends of the straight pipe section 31. The straight pipe section 31 is located within the pipe passage 24 of the first heat conducting portion 21 and extends along the direction of the pipe passage 24. The curved pipe section 32 is connected between the ends of the straight pipe section 31 to form a closed loop. The combination of the straight pipe section 31 and the curved pipe section 32 helps to achieve a compact layout of the heat dissipation pipe section 30 within the electric control box 10. By combining the straight pipe section 31 and the curved pipe section 32, the present invention not only optimizes the heat conduction path and improves the heat dissipation efficiency, but also achieves a compact structure. Preferably, the straight pipe section 31 and the curved pipe section 32 are connected in a detachable manner, so that by removing the curved pipe section 32 , the straight pipe section 31 can be easily inserted into or removed from the pipe passage 24 , thereby facilitating the disassembly and assembly of the heat dissipation pipe section 30 .

[0037] According to the multi-split electrical control box provided by the present invention, the straight pipe section 31 of the heat dissipation pipe section 30 has a flat cross-section. Accordingly, the pipe passage 24 preferably also has a matching shape. The flat cross-sectional design of the straight pipe section 31 reduces the space occupied by the pipe section inside the heat dissipation backplate 20. Furthermore, the flat straight pipe section 31 increases the heat transfer area of the heat dissipation pipe section 30 while maintaining the refrigerant medium flux, thereby improving thermal conductivity.

[0038] The present invention also provides a multi-split air-conditioning system, comprising a multi-split electric control box according to any of the above embodiments. Specifically, the multi-split air-conditioning system may include an indoor unit, an outdoor unit, connecting pipes, a control system, and the like. The indoor unit includes a plurality of indoor units, each of which is responsible for providing cooling or heating functions for a specific area. The outdoor unit is responsible for compressing and releasing refrigerant to achieve a cooling or heating cycle. Connecting pipes connect the indoor and outdoor units to transmit refrigerant. The control system includes but is not limited to the multi-split electric control box mentioned above, which is responsible for coordinating and controlling the entire system.

[0039] Among them, the multi-split electrical control box of the multi-split air-conditioning system contains various electronic control components, such as microprocessors, relays, sensors, etc., and also includes the filter 11 and its heat dissipation assembly described above. The filter 11 is installed on the second heat-conducting portion 22 of the heat dissipation backplate 20. The first heat-conducting portion 21 of the heat dissipation backplate 20 is provided with a straight pipe passage 24. The heat dissipation pipe section 30 includes a straight pipe section 31 and a curved pipe section 32. The straight pipe section 31 has a flat cross-section to increase the heat conduction area and improve the thermal conductivity. A refrigerant medium circulates inside the heat dissipation pipe section 30 to achieve efficient heat exchange and heat dissipation. Through the heat dissipation solution of the filter 11 of the utility model, the heat dissipation efficiency is improved, and the stable operation of the multi-split air-conditioning system is ensured.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or modes and features of different embodiments or modes described in this specification without contradiction.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-split electric control box, characterized in that: include: An electric control box (10), wherein an electric control element is arranged in the electric control box (10), and the electric control element includes a filter (11); a notch is provided on the surface of the electric control box (10) at a position corresponding to the filter (11); a heat dissipation back plate (20), the heat dissipation back plate (20) comprising a first heat conducting portion (21) and a second heat conducting portion (22), the second heat conducting portion (22) covering the notch and directly contacting the filter (11); The heat dissipation pipe section (30) is arranged on the first heat conduction portion (21) of the heat dissipation back plate (20), and a refrigerant medium flows through the heat dissipation pipe section (30).

2. The multi-split electric control box according to claim 1, characterized in that: The second heat-conducting portion (22) of the heat dissipation back plate (20) is provided with a mounting hole (23) adapted to the filter (11); The filter (11) is directly mounted on the heat dissipation backplate (20) through the mounting hole (23).

3. The multi-split electric control box according to claim 2, characterized in that: The size of the notch is larger than the projection range of the filter (11) on the second heat conducting portion (22).

4. The multi-split electric control box according to claim 1, characterized in that: The filter (11) and the heat dissipation pipe section (30) are both located on a side of the heat dissipation back plate (20) facing the inside of the electric control box (10); The heat dissipation pipe section (30) is arranged between the first heat conducting portion (21) and the outer surface of the electric control box (10), or at least a portion of the heat dissipation pipe section (30) is located inside the electric control box (10).

5. The multi-split electric control box according to claim 4, characterized in that: The first heat-conducting portion (21) is provided with a pipe passage (24), and at least a portion of the heat dissipation pipe section (30) passes through the pipe passage (24).

6. The multi-split electric control box according to claim 5, characterized in that: The first heat conducting portion (21) is provided with a plurality of straight pipe passages (24).

7. The multi-split electric control box according to claim 6, characterized in that: The heat dissipation pipe section (30) includes a straight pipe section (31) and a curved pipe section (32); The straight pipe section (31) extends in the pipe passage (24), and the curved pipe section (32) is connected between the ends of the straight pipe section (31).

8. The multi-split electric control box according to claim 6, characterized in that: The cross-sectional shape of the straight pipe section (31) of the heat dissipation pipe section (30) is flat.

9. The multi-split electric control box according to any one of claims 1 to 8, characterized in that: The shape of the notch is adapted to the contour shape of the heat dissipation back plate (20); the heat dissipation back plate (20) is provided with a plurality of assembly holes (25) distributed along the edge; the heat dissipation back plate (20) is mounted on the notch through the assembly holes (25).

10. A multi-split air conditioning system, characterized in that: It comprises the multi-split electric control box according to any one of claims 1 to 9.

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