Electric control box and air conditioner

Abstract

The utility model provides an electric control box and an air conditioner, and relates to the technical field of household appliances. The electric control box comprises a box body, and a sealed accommodating cavity is formed in the box body and used for installing components; the air guide shell is arranged in the sealed accommodating cavity, the air guide shell is provided with an air inlet, an air guide cavity and an air outlet which are communicated in sequence, and the air outlet faces the component; the draught fan is arranged in the sealed containing cavity and used for driving air in the sealed containing cavity to enter the air guide cavity from the air inlet and be exhausted out of the air guide cavity from the air outlet. The heat exchanger is arranged in the air guide cavity and used for conducting heat exchange cooling on air flowing through the air guide cavity. According to the electric control box provided by the invention, through the arrangement of the air guide shell, the circular flow path of air can be precisely controlled, so that the components in the electric control box are precisely cooled, and the heat exchange efficiency in the electric control box and the heat dissipation effect on the components are improved.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, and in particular to an electric control box and an air conditioner. Background Art

[0002] An electronic control box is a component used to centrally control and manage electrical signals and power within an electrical device or system, making it an essential component of any household appliance. While fully sealed, electronic control boxes offer excellent protection against water, dust, and insects, their heat dissipation is limited and needs further improvement. Utility Model Content

[0003] In view of this, the purpose of this application is to provide an electric control box and an air conditioner.

[0004] The technical solutions adopted by this application to solve the above technical problems are:

[0005] In a first aspect, the present application provides an electric control box, the electric control box comprising:

[0006] The box body has a sealed accommodating cavity inside, and the sealed accommodating cavity is used to install components;

[0007] An air guide housing is provided in the sealed accommodating cavity and has an air inlet, an air guide cavity and an air outlet which are connected in sequence, and the air outlet faces the components;

[0008] A fan is provided in the sealed accommodating chamber and is used to drive the air in the sealed accommodating chamber from the air inlet into the air guide chamber and to be discharged from the air outlet to the outside of the air guide chamber; and

[0009] The heat exchanger is arranged in the air guide cavity and is used to exchange heat and cool the air flowing through the air guide cavity.

[0010] Optionally, in some embodiments of the present application, the air guide cavity includes a first cavity section and a second cavity section that are connected, the air inlet is arranged on the side wall of the first cavity section, and the air outlet is arranged on the side wall of the second cavity section.

[0011] Optionally, in some embodiments of the present application, the heat exchanger is located in the first cavity section, the inner diameter of the second cavity section is smaller than the inner diameter of the first cavity section; and / or, the side of the second cavity section facing the component is a grille structure, and the grille structure defines the air outlet.

[0012] Optionally, in some embodiments of the present application, a drying component is further provided in the air guide cavity.

[0013] Optionally, in some embodiments of the present application, the drying component includes a sponge, which is arranged on the side wall of the first cavity segment; and / or the drying component includes a drying box, which is located on the side wall of the second cavity segment close to the first cavity segment, and the drying box is used to place a desiccant.

[0014] Optionally, in some embodiments of the present application, the fan is located at the air inlet.

[0015] Optionally, in some embodiments of the present application, the electric control box further includes a refrigerant input pipe and a refrigerant output pipe. A refrigerant chamber is provided on the heat exchanger. The refrigerant input pipe, the refrigerant chamber, and the refrigerant output pipe are connected in sequence. The refrigerant input pipe and the refrigerant output pipe respectively pass through the side wall of the box body and extend to the outside of the electric control box.

[0016] Optionally, in some embodiments of the present application, the sealed accommodation cavity is further used for installing an electric control board. Components and the heat exchanger are fixedly provided on the electric control board, and the air guide housing is fixedly connected to the electric control board.

[0017] Optionally, in some embodiments of the present application, the box body includes a box body and a box cover. The box cover and the box body are hermetically connected to form a sealed accommodation cavity.

[0018] In a second aspect, an embodiment of the present application further provides an air conditioner, and the air conditioner includes the electric control box of any one of the above.

[0019] In summary, due to the adoption of the above technical solutions, the present application has at least the following beneficial effects:

[0020] For the electric control box provided by the present application, when the fan operates, negative pressure is generated to make air enter the air guide cavity through the air inlet of the air guide housing. The air entering the air guide cavity is heat-exchanged and cooled under the action of the heat exchanger. The cooled air is discharged through the air outlet and flows to the components to dissipate heat from the components; through the setting of the air guide housing, the circulating flow path of the air can be accurately controlled, so as to accurately dissipate heat from the components in the electric control box, improve the heat exchange efficiency in the electric control box, and the heat dissipation effect on the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application and do not limit the present application, where:

[0022] Figure 1 is a schematic structural diagram of the electric control box provided by the embodiment of the present application without the air guide housing installed;

[0023] Figure 2 is a schematic structural diagram of the electric control box provided by the embodiment of the present application with the air guide housing installed;

[0024] Figure 3 is a schematic structural diagram of the air guide housing provided by the embodiment of the present application;

[0025] Figure 4 is Figure 3 exploded view of;

[0026] Figure 5 It is a schematic structural diagram of another perspective of the air guide housing provided by the embodiment of the present application;

[0027] Figure 6 It is a schematic installation structure diagram of the electronic control board and the air guide housing provided by the embodiment of the present application.

[0028] Explanation of reference numerals:

[0029] 100 - electronic control box;

[0030] 10 - box body; 11 - sealed accommodation cavity; 111 - electronic control board; 1111 - components; 1112 - second assembly hole; 1113 - second connection part;

[0031] 20 - air guide housing; 21 - air inlet; 22 - air guide cavity; 221 - first cavity segment; 2211 - first assembly hole; 2212 - first connection part; 222 - second cavity segment; 223 - drying component; 2231 - sponge; 2232 - drying box; 23 - air outlet;

[0032] 30 - fan; 31 - fan housing;

[0033] 40 - heat exchanger; 41 - refrigerant output pipe. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "thickness", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a unique orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or including the number of indicated technical features. Thus, the features defined with "first" and "second" may clearly or implicitly include one or more features. In the description of the present application, "multiple" means two or more, unless otherwise specifically and clearly defined.

[0036] In this application, the term "exemplary" is used to mean "serving as an example, illustration, or demonstration". Any embodiment described as exemplary in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use this application. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that this application can be implemented without these specific details. In other instances, well-known structures and processes are not elaborated in detail to avoid obscuring the description of this application with unnecessary details. Therefore, this application is not intended to be limited to the embodiments shown, but rather to be in line with the broadest scope consistent with the principles disclosed in this application.

[0037] To facilitate understanding of the solution of this application, the spline curves and arrows used for the reference numerals in the drawings are described herein: For the components indicated by the spline curves without arrows, they are solid components, that is, components having a solid structure; for the components indicated by the spline curves with arrows, they are virtual components, that is, components without a solid structure.

[0038] In the related art, in a fully sealed electric control box, after the fan blows the air flow to flow rightward and exchanges heat with the refrigerant heat exchanger, it impacts on the inner wall of the right electric control box. At this time, the main air flow will disperse to form a first cold air flow and a second cold air flow. The first cold air flow impacts the top wall of the electric control box and splits into multiple sub-air flows before it can dissipate heat from the electronic components, while the second cold air flow flows along the bottom wall of the electric control box and can only indirectly play a role in heat dissipation after going through at least half a cycle of circulation. Since there is no guidance for the cold air flow, it is difficult for the cold air in the electric control box to exchange heat with the electronic components that need to be cooled in the first place, resulting in low heat dissipation efficiency. At the same time, there are no other treatment measures for the condensed water formed on the heat exchanger, and it is easy to generate condensed water, which poses risks such as short circuits for the electronic components due to moisture.

[0039] In a first aspect, please refer to Figure 1 and Figure 2 , an embodiment of this application provides an electric control box 100, and the electric control box 100 includes: a box body 10, a sealed accommodation cavity 11 is provided inside the box body 10, and the sealed accommodation cavity 11 is used for installing components 1111; a wind guide shell 20, the wind guide shell 20 is arranged in the sealed accommodation cavity 11, the wind guide shell 20 has an air inlet 21, a wind guide cavity 22 and an air outlet 23 that are sequentially connected, and the air outlet 23 faces the components 1111; a fan 30, the fan 30 is arranged in the sealed accommodation cavity 11 and is used to drive the air in the sealed accommodation cavity 11 to enter the wind guide cavity 22 from the air inlet 21 and be discharged out of the wind guide cavity 22 from the air outlet 23; and a heat exchanger 40, the heat exchanger 40 is arranged in the wind guide cavity 22 and is used to exchange heat and cool the air flowing through the wind guide cavity 22.

[0040] For the electronic control box 100 provided in the present application, when the fan 30 operates, a negative pressure is generated to cause air to enter the air guiding cavity 22 through the air inlet 21 of the air guiding housing 20. The air entering the air guiding cavity 22 is heat-exchanged and cooled under the action of the heat exchanger 40, and the cooled air is discharged through the air outlet 23 and flows to the component 1111 to dissipate heat from the component 1111. By arranging the air guiding housing 20, the circulating flow path of the air can be accurately controlled, so as to accurately dissipate heat from the components 1111 in the electronic control box 100, improve the heat exchange efficiency in the electronic control box 100, and the heat dissipation effect on the components 1111.

[0041] It can be understood that components for fixing the components 1111 such as a main control board and an electronic control board 111 can be provided in the electronic control box 100, and the components 1111 can control the electrical circuit system to ensure the operation of the electrical appliance.

[0042] In some embodiments, please refer to Figure 2 , the air guiding cavity 22 includes a connected first cavity section 221 and a second cavity section 222. The air inlet 21 is arranged on the side wall of the first cavity section 221, and the air outlet 23 is arranged on the side wall of the second cavity section 222. It should be noted that the first cavity section 221 and the second cavity section 222 can be specifically arranged according to the layout of the components 1111 in the electronic control box 100. For example, the first cavity section 221 and the second cavity section 222 can be arranged in an L shape, or the first cavity section 221 and the second cavity section 222 can be linearly connected.

[0043] Furthermore, the air inlet 21 is arranged on the side wall of the first cavity section 221 away from the second cavity section 222, and the air outlet 23 is arranged on the side wall of the second cavity section 222 close to the component 1111.

[0044] In some embodiments, the heat exchanger 40 is located in the first cavity section 221. Furthermore, one side of the first cavity section 221 facing the heat exchanger 40 is open. In this way, not only can the material of the air guiding housing 20 be saved, but it is also convenient for the installation of the first cavity section 221 and the heat exchanger 40. Specifically, when assembling the electronic control box 100, the heat exchanger 40 can be fixedly connected to the box body 10, and then the first cavity section 221 of the air guiding housing 20 is covered on the heat exchanger 40 and fixed.

[0045] In some embodiments, the inner diameter of the second cavity section 222 is smaller than the inner diameter of the first cavity section 221. It should be noted that the inner diameter of the first cavity section 221 is slightly larger than the outer diameter of the heat exchanger 40 so that the heat exchanger 40 is located in the air guiding cavity 22 to heat-exchange and cool the air; the inner diameter of the second cavity section 222 being smaller than the inner diameter of the first cavity section 221 can save the space of the air guiding housing 20, and the inner diameter of the second cavity section 222 is smaller, with greater pressure and pressure intensity, which can increase the flow rate of the cooled air, thereby improving the heat dissipation effect on the component 1111.

[0046] In some embodiments, one side of the second cavity section 222 facing the component 1111 is a grid structure, and the grid structure defines an air outlet 23. The grid structure can improve the protection effect on other components in the second cavity section 222 of the air guide housing 20, and the grid structure is conducive to the precise control of the air flowing from the air outlet 23 to the component 1111, evenly distributing the cooled air to the component 1111, and improving the heat exchange efficiency.

[0047] In some embodiments, please refer to Figure 4 and Figure 5 , a drying component 223 is further provided in the air guide cavity 22.

[0048] It should be noted that during the operation of the heat exchanger 40, due to the temperature difference, water vapor in the surrounding air will condense into liquid water, generating condensate. When the condensate contacts the component 1111, it will not only affect the control of the electrical circuit system, but even cause a short circuit and pose a safety problem. By providing the drying component 223 in this application, the condensate can be treated to keep the component 1111 dry and ensure the normal operation of the electrical circuit system.

[0049] In some embodiments, the drying component 223 includes a sponge 2231, and the sponge 2231 is provided on the side wall of the first cavity section 221.

[0050] Further, the sponge 2231 is adhered to the side wall at the bottom of the first cavity section 221.

[0051] In some embodiments, the material of the sponge 2231 can be selected from, but not limited to, one or more of EPDM (ethylene propylene diene monomer copolymer), PVA (polyvinyl alcohol), polyester fiber, and viscose fiber.

[0052] It can be understood that the heat exchanger 40 is located in the first cavity section 221. When the heat exchanger 40 is performing heat exchange and cooling, the generated condensate drips downward under the action of gravity, and the downward dripping condensate drips onto the side wall of the first cavity section 221 where the sponge 2231 is adhered. The sponge 2231 can absorb the condensate, preventing the condensate from flowing to contact the component 1111 under the action of the flowing air. The sponge 2231 has strong water absorption capacity and low cost. The sponge 2231 is located on the side wall of the first cavity section 221 by pasting. After multiple uses, the sponge 2231 can be replaced, and the operation is convenient.

[0053] In some embodiments, the drying component 223 includes a drying box 2232. The drying box 2232 is located on the side wall of the second cavity section 222 close to the first cavity section 221, and the drying box 2232 is used to place a desiccant.

[0054] Furthermore, the drying box 2232 is located between the air outlet 23 and the first cavity section 221. In this way, the moisture in the air cooled by the heat exchanger 40 can be absorbed, preventing the moisture from making the components 1111 damp and causing short circuits and other situations.

[0055] In some embodiments, the desiccant is a solid granular desiccant, specifically activated carbon, silica gel, etc. It should be noted that powdered desiccants cannot be used to avoid the desiccant being blown and scattered in the second cavity section 222 when the cooled air passes through the desiccant, affecting the subsequent drying effect.

[0056] In some embodiments, gauze is provided at both the inlet and outlet of the desiccant, further preventing the desiccant from being blown and scattered in the second cavity section 222 when the cooled air passes through the desiccant.

[0057] In some embodiments, the blower 30 is located at the air inlet 21.

[0058] Furthermore, the electronic control box 100 includes a blower housing 31. The blower 30 is located inside the blower housing 31, and the blower housing 31 is located on the side of the first cavity section 221 away from the second cavity section 222. It can be understood that during the rotation of the blower 30, negative pressure can be generated through the rotation of its blades, pushing the nearby air flow to enter the air guide cavity 22 from the air inlet 21.

[0059] In some embodiments, the electronic control box 100 further includes a refrigerant input pipe and a refrigerant output pipe 41. The heat exchanger 40 is provided with a refrigerant cavity, and the refrigerant input pipe, the refrigerant cavity, and the refrigerant output pipe 41 are connected in sequence. The refrigerant input pipe and the refrigerant output pipe 41 respectively pass through the side wall of the box body 10 and extend to the outside of the electronic control box 100.

[0060] It should be noted that the provided electronic control box 100 is a sealed electronic control box 100. In addition to performing the heat exchange internal cycle in the sealed accommodation cavity 11, the heat exchanger 40 also conducts a heat exchange cycle with the external environment through the refrigerant input pipe and the refrigerant output pipe 41. The refrigerant flows along the refrigerant input pipe, the refrigerant cavity, and the refrigerant output pipe 41 to achieve the heat exchange of the heat exchanger 40, so as to achieve the heat exchange and cooling of the air entering from the air inlet 21.

[0061] In some embodiments, the sealed accommodation cavity 11 is also used to install an electronic control board 111, and the components 1111 and the heat exchanger 40 are fixedly arranged on the electronic control board 111.

[0062] In some embodiments, please refer to Figure 6 , the air guide housing 20 is fixedly connected to the electronic control board 111.

[0063] In some embodiments, a first assembly hole 2211 is defined on the first cavity section 221 , a second assembly hole 1112 is defined on the electric control board 111 , and the electric control box 100 further includes a fixing member connecting the first assembly hole 2211 and the second assembly hole 1112 .

[0064] In some embodiments, a first connection portion 2212 is provided on the first cavity section 221 , and a second connection portion 1113 is provided on the electric control board 111 , and the first connection portion 2212 and the second connection portion 1113 are snap-connected.

[0065] It is understood that the electric control board 111 and the air guide housing 20 can be connected simultaneously through the first assembly hole 2211 and the second assembly hole 1112, and the first connecting portion 2212 and the second connecting portion 1113. Specifically, when installing the electric control board 111 and the air guide housing 20, the wires are aligned with the first connecting portion 2212 and the second connecting portion 1113 to achieve a snap-fit and positional engagement, and then the first assembly hole 2211 and the second assembly hole 1112 are connected by a fixing member, thereby achieving a fixed connection between the electric control board 111 and the air guide housing 20.

[0066] In some embodiments, the box body 10 includes a box body and a box cover, which are sealed to form a sealed accommodating cavity 11. The sealed structure of the electric control box 100 can effectively prevent water, dust and insects, and improve the protection of the components 1111.

[0067] In a second aspect, an embodiment of the present application further provides an air conditioner, which includes any one of the above-mentioned electric control boxes 100.

[0068] The basic concepts have been described above. It will be apparent to those skilled in the art that the detailed disclosure above is merely illustrative and does not limit the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to the present application. Such modifications, improvements, and amendments are suggested in the present application and remain within the spirit and scope of the exemplary embodiments of the present application.

[0069] Each patent, patent application, patent application publication, and other materials, such as articles, books, specifications, publications, and documents, cited in this application is hereby incorporated by reference in its entirety, except for any application history that is inconsistent with or conflicts with this application, and any document (currently or subsequently appended to this application) that limits the broadest scope of the claims of this application. It should be noted that if the descriptions, definitions, and / or terminology used in the accompanying materials are inconsistent with or conflict with the content of this application, the descriptions, definitions, and / or terminology used in this application will control.

Claims

1. An electric control box, characterized in that: The electric control box includes: A box body, wherein a sealed accommodating cavity is provided inside the box body, and the sealed accommodating cavity is used for installing components; An air guide housing is provided in the sealed accommodating cavity, the air guide housing having an air inlet, an air guide cavity and an air outlet that are sequentially connected, and the air outlet faces the component; a fan, the fan being disposed in the sealed accommodating chamber and configured to drive the air in the sealed accommodating chamber from the air inlet into the air guide chamber and to be discharged from the air outlet to the outside of the air guide chamber; and A heat exchanger is arranged in the air guiding cavity and is used for exchanging heat and cooling the air flowing through the air guiding cavity.

2. The electric control box according to claim 1, characterized in that: The air guide cavity includes a first cavity section and a second cavity section that are connected. The air inlet is arranged on the side wall of the first cavity section, and the air outlet is arranged on the side wall of the second cavity section.

3. The electric control box according to claim 2, characterized in that: The heat exchanger is located in the first cavity section, and the inner diameter of the second cavity section is smaller than the inner diameter of the first cavity section; and / or, the side of the second cavity section facing the component is a grille structure, and the grille structure defines the air outlet.

4. The electric control box according to claim 2, characterized in that: A drying component is also provided in the air guiding cavity.

5. The electric control box according to claim 4, characterized in that: The drying component includes a sponge, which is arranged on the side wall of the first cavity section; and / or the drying component includes a drying box, which is located on the side wall of the second cavity section close to the first cavity section, and the drying box is used to place a desiccant.

6. The electric control box according to claim 1, characterized in that: The fan is located at the air inlet.

7. The electric control box according to claim 1, characterized in that: The electrical control box also includes a refrigerant input pipe and a refrigerant output pipe. A refrigerant cavity is provided on the heat exchanger. The refrigerant input pipe, the refrigerant cavity and the refrigerant output pipe are connected in sequence. The refrigerant input pipe and the refrigerant output pipe respectively pass through the side walls of the box body and extend to the outside of the electrical control box.

8. The electric control box according to claim 1, characterized in that: The sealed accommodating cavity is also used for installing an electric control board. The components and the heat exchanger are fixedly arranged on the electric control board. The air guide shell is fixedly connected to the electric control board.

9. The electric control box according to claim 1, characterized in that: The box body comprises a box body and a box cover, and the box cover and the box body are sealed and connected to form the sealed accommodating cavity.

10. An air conditioner, characterized in that: The air conditioner includes the electric control box according to any one of claims 1 to 9.

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