Electric control assembly and air conditioner

Abstract

An electric control assembly and an air conditioner. The electric control assembly comprises: a mounting structure (10), which is provided with a bottom surface and an opening (101) opposite to the bottom surface; and a main board (20), which is arranged in the mounting structure (10) and provided with a first surface (201) and a second surface (202) arranged opposingly, wherein the first surface (201) faces the bottom surface, and the second surface (202) faces the opening (101). A first heat dissipation channel (30) is arranged between the first surface (201) and the bottom surface, and the first heat dissipation channel (30) is communicated with a housing (40) of the air conditioner.

Description

Electric control assembly and air conditioner Cross-reference to related applications

[0001] This application claims priority to Chinese Patent Application No. 2024110536894 and 202421860088X, filed on August 01, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present disclosure belongs to the technical field of electrical appliances, and specifically relates to an electric control assembly and an air conditioner. BACKGROUND

[0003] With the rapid development of modern technology, as an indispensable electrical appliance in family and commercial environment, the performance and stability of air conditioner are increasingly concerned by consumers. In the running process of air conditioner, the electric control assembly as the core control part is responsible for regulating the running state of the whole system. The stability and reliability of the electric control assembly directly determine the overall performance and service life of the air conditioner.

[0004] However, in the prior art, the electric control assembly is not conducive to the stability of the overall operation of the air conditioner due to poor heat dissipation when it runs for a long time. SUMMARY

[0005] To solve the above technical problems, the present disclosure provides an electric control assembly and an air conditioner, which aims to at least solve the technical problem that the electric control assembly is not conducive to the stability of the overall operation of the air conditioner due to poor heat dissipation when it runs for a long time.

[0006] According to some embodiments of the present disclosure, an electric control assembly is provided, comprising: a mounting structure provided with a bottom surface and an opening opposite to the bottom surface; a mainboard arranged in the mounting structure and provided with a first surface and a second surface arranged oppositely, the first surface facing the bottom surface, and the second surface facing the opening; wherein a first heat dissipation channel is arranged between the first surface and the bottom surface, and the first heat dissipation channel is in communication with a cabinet of an air conditioner.

[0007] According to some embodiments of the present disclosure, an air conditioner is also provided, comprising a cabinet and the electric control assembly. The first heat dissipation channel of the electric control assembly is in communication with the cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present disclosure, and other drawings can also be obtained by those skilled in the art without creative labor based on these drawings.

[0009] Fig. 1 is a structural schematic diagram of an electric control assembly according to some embodiments of the present disclosure;

[0010] Fig. 2 is an exploded view of the electric control assembly in Fig. 1;

[0011] Fig. 3 is a top view of the electric control assembly in Fig. 1;

[0012] Fig. 4 is a sectional view of the electric control assembly in Fig. 3 along A-A direction;

[0013] Fig. 5 is a schematic diagram of air inlet of the electric control assembly in Fig. 1;

[0014] Fig. 6 is a structural schematic diagram of an electric control box of the electric control assembly in Fig. 1;

[0015] Fig. 7 is a rear view of the electric control box in Fig. 6;

[0016] Fig. 8 is a top view of the electric control box in Fig. 6;

[0017] Fig. 9 is a structural schematic diagram of a mainboard mounting box of the electric control assembly in Fig. 1;

[0018] Fig. 10 is a rear view of the mainboard mounting box in Fig. 9;

[0019] Fig. 11 is a structural schematic diagram of a second heat dissipation channel of the electric control assembly in Fig. 1; and

[0020] Fig. 12 is a structural schematic diagram of an air conditioner according to some embodiments of the present disclosure.

[0021] The correspondence between the reference signs and the component names in the drawings is as follows:

[0022] 10, mounting structure; 101, opening; 102, electric control box; 1021, air inlet; 1022, box body; 103, mainboard mounting box; 104, heat dissipation groove; 1041, first groove; 1042, second groove; 10421, first sub-groove wall; 10422, second sub-groove wall; 10423, second heat dissipation hole; 105, first heat dissipation hole; 106, positioning portion; 107, heat conduction groove; 108, first wiring hole; 109, second wiring hole;

[0023] 20, mainboard; 201, first surface; 202, second surface;

[0024] 30, first heat dissipation channel;

[0025] 40, cabinet; 401, bottom plate;

[0026] 50, second heat dissipation channel; 501, first air inlet; 502, second air inlet. DETAILED DESCRIPTION

[0027] With reference to the drawings and specific embodiments described below, the technical solutions in the embodiments of the present disclosure will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present disclosure.

[0028] It should be noted that all directional indications in the embodiments of the present disclosure are only used to explain the relative position relationship, motion condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0029] In the present disclosure, unless otherwise explicitly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements or interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to the specific circumstances.

[0030] In addition, the descriptions such as "first", "second", etc. in the present disclosure are only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that the technical solutions can be realized by those of ordinary skill in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection required by the present disclosure.

[0031] The technical solutions of the present disclosure will be described below in combination with the drawings and specific embodiments.

[0032] The electric control assembly and air conditioner provided in the embodiment aim to at least solve the technical problem that the electric control assembly is not conducive to the stability of the overall operation of the air conditioner due to poor heat dissipation when the electric control assembly is operated for a long time.

[0033] Fig. 1 is a structural schematic diagram of an electric control assembly according to some embodiments of the present disclosure; Fig. 2 is an exploded view of the electric control assembly in Fig. 1; Fig. 3 is a top view of the electric control assembly in Fig. 1; Fig. 4 is a sectional view of the electric control assembly in Fig. 3 along A-A. In combination with Fig. 1, Fig. 2, Fig. 3 and Fig. 4. The electric control assembly according to some embodiments of the present disclosure comprises a mounting structure 10 and a main board 20. The mounting structure 10 is provided with a bottom surface and an opening 101 opposite to the bottom surface. The main board 20 is arranged in the mounting structure 10 and is provided with a first surface 201 and a second surface 202 arranged opposite to each other. The first surface 201 is arranged towards the bottom surface and the second surface 202 is arranged towards the opening 101. In some embodiments, a first heat dissipation channel 30 is arranged between the first surface 201 and the bottom surface. The first heat dissipation channel 30 is in communication with a cabinet 40 of an air conditioner.

[0034] Since the mounting structure 10 is provided with a bottom surface and an opening 101 opposite to the bottom surface, the main board 20 is arranged in the mounting structure 10 and is provided with a first surface 201 and a second surface 202 arranged opposite to each other, the first surface 201 is arranged towards the bottom surface, and a first heat dissipation channel 30 is arranged between the first surface 201 and the bottom surface, when the air conditioner is running, the fan assembly in the cabinet 40 of the air conditioner is actuated to make the air flow in the cabinet 40. Since the first heat dissipation channel 30 is in communication with the cabinet 40 of the air conditioner, the air in the first heat dissipation channel 30 will be extracted into the cabinet 40 to form a negative pressure. When the main board 20 is working, the main board 20 will generate heat radiation. The heat radiation between the first surface 201 and the bottom surface will be sucked into the first heat dissipation channel 30 and enter the cabinet 40 of the air conditioner through the first heat dissipation channel 30. Under the combined action of the working of the fan assembly and the negative pressure effect of the first heat dissipation channel 30, the heat radiation generated by the main board 20 can be effectively dissipated, so as to achieve heat dissipation of the first surface 201, thereby reducing the working temperature of the main board 20 and improving the stability and service life of the main board 20. It can also ensure that the main board 20 works normally, thereby improving the overall performance and efficiency of the air conditioner. Moreover, by entering the cabinet 40 through the first heat dissipation channel 30, the risk of damage to the main board 20 due to overheating can be reduced, thereby prolonging the service life of the main board 20. It can also reduce the risk of fire and other safety hazards caused by high temperature of the main board 20, thereby improving the user experience. Since the second surface 202 is arranged towards the opening 101, the heat generated by the main board 20 can be directly discharged out of the mounting structure 10 through the opening 101 when the main board 20 is working, thereby effectively dissipating the heat generated by the main board 20. This can reduce the possibility of heat accumulation on the main board 20, thereby achieving heat dissipation of the second surface 202. It can also further reduce the working temperature of the main board 20, thereby further improving the stability and service life of the main board 20 and improving the stability and performance of the air conditioner.

[0035] In some embodiments, the first surface 201 faces the bottom surface, resulting in the first surface 201 being blocked by the bottom surface, so that the heat dissipation effect between the first surface 201 and the bottom surface is poor. A first heat dissipation channel 30 is provided between the first surface 201 and the bottom surface. The first heat dissipation channel 30 communicates with the cabinet 40 of the air conditioner. The heat radiation between the first surface 201 and the bottom surface is guided into the cabinet 40 of the air conditioner through the first heat dissipation channel 30, so as to achieve heat dissipation of the first surface 201, so that the heat radiation generated by the main board 20 can be effectively dissipated. In this way, the working temperature of the main board 20 is reduced, and the stability and service life thereof are improved. Thus, the normal work of the main board 20 can be ensured, thereby improving the overall performance and efficiency of the air conditioner.

[0036] In combination with FIGS. 1 and 2, in some embodiments, the main board 20 can be installed in the mounting structure 10 through the opening 101. The opening 101 can enable the main board 20 to be directly aligned and inserted into the mounting structure 10, thereby simplifying the installation process, reducing the time and steps required during installation, and improving work efficiency. That is, the opening 101 not only achieves heat dissipation of the second surface 202, but also facilitates installation of the main board 20, realizes "one mouth for two purposes", and reduces costs.

[0037] In combination with FIGS. 1 and 2, in some embodiments, in order to form the first heat dissipation channel 30, the mounting structure 10 can include an electric control box 102 and a main board mounting box 103. The electric control box 102 is provided with a heat dissipation groove 104 that communicates with the cabinet 40 of the air conditioner. The main board mounting box 103 is arranged in the electric control box 102 and is provided with the opening 101. In some embodiments, the main board 20 is arranged in the main board mounting box 103. The main board mounting box 103 is provided with a plurality of first heat dissipation holes 105. The plurality of first heat dissipation holes 105 are located between the first surface 201 and the electric control box 102. The plurality of first heat dissipation holes 105 communicate with the heat dissipation groove 104 to form the first heat dissipation channel 30.

[0038] In some embodiments, when the air conditioner is running, the fan assembly in the cabinet 40 of the air conditioner operates to make the air flow in the cabinet 40. Since the heat dissipation groove 104 is in communication with the cabinet 40 of the air conditioner, the air in the heat dissipation groove 104 is extracted into the cabinet 40 to form a negative pressure. When the mainboard 20 is working, the mainboard 20 generates heat radiation. The heat radiation between the first surface 201 and the bottom surface is sucked into the heat dissipation groove 104 through the plurality of first heat dissipation holes 105 and enters the cabinet 40 of the air conditioner through the heat dissipation groove 104. Under the joint action of the working of the fan assembly and the negative pressure effect of the heat dissipation groove 104, the heat radiation generated by the mainboard 20 can be effectively dissipated to achieve heat dissipation of the first surface 201. In this way, the working temperature of the mainboard 20 is reduced, and the stability and service life of the mainboard 20 are improved, so that the mainboard 20 can work normally, thereby improving the overall performance and efficiency of the air conditioner. Moreover, the heat radiation of the mainboard 20 enters the cabinet 40 through the first heat dissipation channel 30, which can reduce the risk of damage of the mainboard 20 due to overheating, thereby prolonging the service life of the mainboard 20. It can also reduce the risk of fire and other safety hazards caused by high temperature of the mainboard 20, thereby improving the user experience.

[0039] FIG. 9 is a structural schematic view of the mainboard mounting box of the electric control assembly in FIG. 1, and FIG. 10 is a rear view of the mainboard mounting box in FIG. 9. In combination with FIG. 9 and FIG. 10, in some embodiments, the plurality of first heat dissipation holes 105 can be arranged side by side and spaced apart. The first surface 201 is covered on the plurality of first heat dissipation holes 105, so that the heat radiation of the first surface 201 can enter the heat dissipation groove 104 through the plurality of first heat dissipation holes 105.

[0040] In some embodiments, the mainboard 20 is provided with a heat generating component. In the thickness direction of the mainboard mounting box 103, the projection of the heat generating component 20 on the mainboard mounting box 103 overlaps the plurality of first heat dissipation holes 105, so that the heat radiation of the heat generating component can enter the heat dissipation groove 104 through the plurality of first heat dissipation holes 105, ensuring the heat dissipation effect.

[0041] In combination with FIG. 1 and FIG. 2, in some embodiments, the mainboard mounting box 103 is arranged in the electric control box 102. The electric control box 102 supports and accommodates the mainboard mounting box 103, provides installation space and support force for the mainboard mounting box 103, and ensures that the mainboard mounting box 103 will not shake or deform during installation and use due to its own weight or external factors. It can also protect the mainboard mounting box 103 from being damaged by external debris, and ensure the safety of the mainboard mounting box 103. The mainboard 20 is arranged in the mainboard mounting box 103. The mainboard mounting box 103 supports and accommodates the mainboard 20, provides installation space and support force for the mainboard 20, thereby ensuring the stability of the mainboard 20 installation. It can also protect the mainboard 20 from being damaged by external debris, thereby ensuring the safety of the mainboard 20.

[0042] Figure 12 is a structural schematic diagram of an air conditioner according to some embodiments of the present disclosure. In combination with Figure 12, in some embodiments, the electric control box 102 is connected with the cabinet 40. By supporting the electric control box 102 through the cabinet 40, stable support force can be provided for the electric control box 102 to ensure that the electric control box 102 will not shake or deform during installation and use due to its own weight or external factors.

[0043] Figure 6 is a structural schematic diagram of the electric control box of the electric control assembly in Figure 1; Figure 7 is a rear view of the electric control box in Figure 6; and Figure 8 is a top view of the electric control box in Figure 6. In combination with Figure 4, Figure 6, Figure 7 and Figure 8, in some embodiments, the mainboard 20 may, due to continuous high temperature, cause a flame to be generated due to a burning failure of the mainboard 20. In order to avoid the flame entering the cabinet 40 of the air conditioner along with the airflow, the heat dissipation groove 104 can include a first groove 1041 and a second groove 1042 in communication with the first groove 1041. The depth of the second groove 1042 is greater than the depth of the first groove 1041. The second groove 1042 is in communication with the cabinet 40 of the air conditioner.

[0044] In some embodiments, when the air conditioner is running, the fan assembly in the cabinet 40 of the air conditioner operates to make the air flow in the cabinet 40. Since the second groove 1042 is in communication with the cabinet 40 of the air conditioner, the air in the first groove 1041 and the second groove 1042 will be extracted into the cabinet 40 to form a negative pressure. When the mainboard 20 is working, the mainboard 20 will generate heat radiation. The heat radiation between the first surface 201 and the bottom surface will be sucked into the first groove 1041 through the plurality of first heat dissipation holes 105, enter the second groove 1042, and enter the cabinet 40 of the air conditioner through the second groove 1042. Under the combined action of the working of the fan assembly and the negative pressure effect of the first groove 1041 and the second groove 1042, the heat radiation generated by the mainboard 20 can be effectively dissipated to achieve heat dissipation of the first surface 201, thereby reducing the working temperature of the mainboard 20 and improving the stability and life of the mainboard 20.

[0045] In combination with Figure 6, in some embodiments, when a burning failure of the mainboard 20 occurs, since the depth of the second groove 1042 is greater than the depth of the first groove 1041, the airflow will be bent when entering the second groove 1042 from the first groove 1041. In this way, the flow direction of the airflow can be changed to increase the path length of the airflow during the passing process, thereby increasing the resistance of the airflow during the passing process. Due to the increase in resistance, the flame will be hindered when following the airflow into the second groove 1042. In this way, the possibility of the flame entering the second groove 1042 can be effectively reduced to ensure the safety of the equipment in the cabinet 40 of the air conditioner.

[0046] With reference to FIGS. 4 and 6, in some embodiments, to further avoid the flame following the air flow into the cabinet 40 of the air conditioner, the second slot 1042 can include a first sub-slot wall 10421 communicating with the first slot 1041 and a second sub-slot wall 10422 communicating with the first sub-slot wall 10421. The second sub-slot wall 10422 can be arranged at an angle with the first slot 1041. The second slot 1042 communicates with the cabinet 40 of the air conditioner.

[0047] In some embodiments, the second sub-slot wall 10422 can be arranged in a stepped manner with the first slot 1041, i.e., the height of the second sub-slot wall 10422 can be arranged to be different from the height of the bottom surface of the first slot 1041.

[0048] In some embodiments, the second sub-slot wall 10422 can be arranged at an angle with the first slot 1041; the second sub-slot wall 10422 can be arranged at an angle with the first sub-slot wall 10421.

[0049] In some embodiments, when the failure of the main board 20 burning occurs, since the second sub-slot wall 10422 is arranged at an angle with the first slot 1041, when the air flow enters the second sub-slot wall 10422 from the first slot 1041 through the first sub-slot wall 10421, the air flow path will be bent. Thus, the flow direction of the air flow can be changed to further increase the path length of the air flow during the passing process, thereby increasing the resistance when the air flow passes. Due to the increase of the resistance, the flame will be hindered when following the air flow into the second sub-slot wall 10422. Thus, the possibility of the flame entering the second sub-slot wall 10422 can be effectively reduced to ensure the safety of the equipment in the cabinet 40 of the air conditioner.

[0050] In some embodiments, the included angle between the second sub-slot wall 10422 and the first slot 1041 can be an acute angle, an obtuse angle, or a right angle.

[0051] In some embodiments, to further avoid the flame following the air flow into the cabinet 40 of the air conditioner, the communication position of the second sub-slot wall 10422 with the cabinet 40 of the air conditioner and the communication position of the first slot 1041 with the first sub-slot wall 10421 are located on the same side of the first sub-slot wall 10421.

[0052] In combination with FIG. 6, in some embodiments, when the failure of the main board 20 combustion occurs, since the second sub-groove wall 10422 and the first groove 1041 and the first sub-groove wall 10421 communicate at the same side of the first sub-groove wall 10421, when the air flow enters the cabinet 40 of the air conditioner through the second sub-groove wall 10422, the air flow path will be bent. Thus, the flow direction of the air flow is changed, further increasing the path length of the air flow in the process, thereby increasing the resistance of the air flow when passing. Due to the increase in resistance, the flame will be hindered when following the air flow into the cabinet 40 of the air conditioner. Thus, the possibility of the flame entering the cabinet 40 of the air conditioner can be effectively reduced to ensure the safety of the equipment in the cabinet 40 of the air conditioner.

[0053] In combination with FIG. 7, in some embodiments, in order to facilitate the communication between the second sub-groove wall 10422 and the cabinet 40 of the air conditioner, a plurality of second heat dissipation holes 10423 can be formed on the second sub-groove wall 10422. The plurality of second heat dissipation holes 10423 communicate the second sub-groove wall 10422 and the cabinet 40 of the air conditioner. In some embodiments, the first groove 1041 and the plurality of second heat dissipation holes 10423 are located at the same side of the first sub-groove wall 10421.

[0054] In some embodiments, in order to enable the main board 20 to be provided with a heat-generating component, along the thickness direction of the main board mounting box 103, the projection of the heat-generating component 20 on the main board mounting box 103 at least partially overlaps the plurality of second heat dissipation holes 10423, so that the heat-generating component is close to the second heat dissipation holes 10423. This facilitates heat radiation transmission to ensure heat dissipation effect.

[0055] In combination with FIGS. 2, 4 and 9, in some embodiments, in order to facilitate the installation of the main board mounting box 103, the main board mounting box 103 is provided with a positioning portion 106. The positioning portion 106 can be embedded in the second groove 1042. When the main board mounting box 103 is to be installed in the electric control box 102, the positioning portion 106 can be embedded in the second groove 1042, which can complete the preliminary positioning without complex adjustment and calibration steps, so that the installation process of the main board mounting box 103 is simple and fast. It can also reduce errors and uncertainties in the installation process of the main board mounting box 103, so that the main board mounting box 103 can be stably and accurately fixed at the predetermined position of the electric control box 102. After the positioning portion 106 is completely embedded in the second groove 1042, the groove wall of the second groove 1042 can clamp the positioning portion 106, so that the main board mounting box 103 is stably supported to prevent the main board mounting box 103 from loosening or shifting during use. It can also effectively reduce the risk of damage caused by vibration or impact to ensure the stability of the installation of the main board mounting box 103.

[0056] In some embodiments, the second groove 1042 not only allows the heat radiation of the mainboard 20 to enter the cabinet 40 of the air conditioner, but also cooperates with the positioning part 106 to realize positioning, realizing "one groove with two purposes" and reducing the cost.

[0057] In some embodiments, in order to further reduce the working temperature of the mainboard 20, the positioning part 106 is provided with a heat conduction groove 107 which is in communication with the second groove 1042. The heat conduction groove 107 is located between the first surface 201 and the second groove 1042.

[0058] In some embodiments, when the mainboard 20 is working, the mainboard 20 will generate heat radiation. Part of the heat radiation between the first surface 201 and the bottom surface passes through the first heat dissipation hole 105, the first groove 1041 and the second groove 1042 in sequence to enter the cabinet 40 of the air conditioner. Another part of the heat radiation can pass through the heat conduction groove 107 and the second groove 1042 in sequence to enter the cabinet 40 of the air conditioner. In this way, the heat dissipation area of the first surface 201 is increased, so that the heat radiation generated by the mainboard 20 can be effectively dissipated, to realize sufficient heat dissipation of the first surface 201, further reduce the working temperature of the mainboard 20, and improve the stability and life of the mainboard 20. It can ensure that the mainboard 20 works normally, thereby improving the overall performance and efficiency of the air conditioner. By passing the heat radiation of the mainboard 20 into the cabinet 40 through the first heat dissipation channel 30, the risk of damage to the mainboard 20 due to overheating can be reduced, thereby prolonging the service life of the mainboard 20. It can also reduce the risk of fire and other safety hazards caused by high temperature of the mainboard 20, and improve the user experience.

[0059] In some embodiments, in order to facilitate the airflow entering the second groove 1042 from the heat conduction groove 107, the positioning part 106 is spaced apart from the groove bottom of the second groove 1042. In this way, the heat conduction groove 107 can be prevented from being blocked by the groove wall of the second groove 1042, to ensure smooth airflow.

[0060] In some embodiments, the heat conduction groove 107 is arranged at an angle with the second heat dissipation hole 10423. When the mainboard 20 burns, the airflow enters the second heat dissipation hole 10423 from the heat conduction groove 107, and the air path is bent. In this way, the flow direction of the airflow can be changed to increase the path length of the airflow during the passing process, thereby increasing the resistance of the airflow during the passing process. Due to the increase of resistance, the flame will be hindered when following the airflow into the cabinet 40 of the air conditioner, which can effectively reduce the possibility of the flame entering the cabinet 40 of the air conditioner, to ensure the safety of the equipment in the cabinet 40 of the air conditioner.

[0061] Figure 5 is a schematic diagram of the air inlet of the electric control assembly in Figure 1. In combination with Figures 2 and 5, in some embodiments, in order to achieve heat dissipation of the second surface 202, the electric control box 102 is provided with a first wiring hole 108 for air inlet and a second wiring hole 109 for air outlet, which are arranged at intervals. The first wiring hole 108 and the second wiring hole 109 are both in communication with the opening 101 and the cabinet 40 of the air conditioner.

[0062] In some embodiments, when the air conditioner is running, the fan assembly in the cabinet 40 of the air conditioner operates to make air flow in the cabinet 40. Part of the air can enter the electric control box 102 through the first wiring hole 108 and be blown to the second surface 202 through the opening 101 to exchange heat with the second surface 202, and then enter the cabinet 40 through the second wiring hole 109, so as to effectively dissipate the heat generated by the mainboard 10. In this way, the possibility of heat accumulation at the mainboard 10 is reduced, so as to achieve heat dissipation of the second surface 202. The working temperature of the mainboard 10 can be further reduced to improve the stability and service life of the mainboard 20 and the stability and performance of the air conditioner.

[0063] In some embodiments, the devices in the cabinet 40 of the air conditioner can be electrically connected to the mainboard 20 through cables passing through the first wiring hole 108 or the second wiring hole 109 to achieve signal transmission. That is, the first wiring hole 108 can not only be used as a wiring hole, but also be used as an air inlet, achieving "one mouth for two uses" and reducing costs. The second wiring hole 109 can not only be used as a wiring hole, but also be used as an air outlet, achieving "one mouth for two uses" and reducing costs.

[0064] In some embodiments, in order to avoid flames entering the cabinet 40 of the air conditioner along with the air flow, the first wiring hole 108 and the second wiring hole 109 are arranged offset from the mainboard mounting box 103, so that there is no burning material at the first wiring hole 108 and the second wiring hole 109. When a failure of the mainboard 20 burning occurs, the flame will not enter the cabinet 40 of the air conditioner along with the air flow through the first wiring hole 108 and / or the second wiring hole 109, so as to ensure the safety of the devices in the cabinet 40 of the air conditioner.

[0065] In combination with FIG. 2 and FIG. 5, in some embodiments, in order to ensure the heat dissipation effect of the second surface 202, the first wiring hole 108 and the second wiring hole 109 are arranged at an angle. When the air enters the opening 101 from the first wiring hole 108 and enters the second wiring hole 109 from the opening 101, the flow path of the air is not a straight line, but a bending. In this way, the flow path of the air can be prolonged to increase the contact area of the air with the second surface 202, and to facilitate the dissipation of heat, thereby improving the heat dissipation efficiency. The resistance of the air flow can also be increased to ensure the contact time of the air with the second surface 202, thereby facilitating the dissipation of heat and improving the heat dissipation efficiency. The included angle between the first wiring hole 108 and the second wiring hole 109 can be an acute angle, a right angle or an obtuse angle.

[0066] In combination with FIG. 2 and FIG. 5, in some embodiments, the electric control box 102 can include a box body 1022. The top of the box body 1022 is provided with the first wiring hole 108. The side of the box body 1022 is provided with the second wiring hole 109 to achieve the angle arrangement of the first wiring hole 108 and the second wiring hole 109. The end face of the box body 1022 towards the mainboard mounting box 103 is the bottom face of the mounting structure 10.

[0067] In combination with FIG. 2 and FIG. 5, in some embodiments, in order to further ensure the heat dissipation effect of the second surface 202, the electric control box 102 is provided with an air inlet 1021 which communicates the opening 101 and the air inlet of the cabinet 40 of the air conditioner. The air inlet 1021 is located on the same side of the electric control box 102 as the first wiring hole 108 and is arranged at intervals with the first wiring hole 108.

[0068] In some embodiments, when the air conditioner is running, the fan assembly in the cabinet 40 of the air conditioner operates to make the air flow in the cabinet 40. Part of the air can enter the electric control box 102 through the air inlet 1021 and blow towards the second surface 202 through the opening 101, exchange heat with the second surface 202, and then enter the cabinet 40 through the second wiring hole 109, effectively dissipating the heat generated by the mainboard 10. In this way, the possibility of heat accumulation at the mainboard 10 is reduced, the heat dissipation of the second surface 202 is achieved, and the air volume entering the electric control box 102 is increased. The working temperature of the mainboard 10 can also be further reduced to improve the stability and life of the mainboard 20 and the stability and performance of the air conditioner.

[0069] In combination with FIG. 12, in some embodiments, the bottom of the side of the box body 1022 is formed with a notch. When the box body 1022 is connected with the bottom plate 401 of the cabinet 40, the notch and the bottom plate 401 form the air inlet 1021.

[0070] Figure 11 is a structural diagram of a second heat dissipation passage of the electric control assembly in Figure 1. In combination with Figure 5 and Figure 11, in some embodiments, in order to ensure that the air after heat exchange with the mainboard 20 is fully discharged, the electric control box 102 is provided with a second heat dissipation passage 50 which is in communication with the opening 101 and the cabinet 40 of the air conditioner. If the mainboard 20 is installed, the mainboard 20 can be located between the second heat dissipation passage 50 and the second wiring hole 109. The number of the second heat dissipation passage 50 can be one or more.

[0071] In some embodiments, after the air is heat exchanged with the mainboard 20, the air can enter the cabinet 40 of the air conditioner through the opening 101 and the second heat dissipation passage 50 in sequence, so that the air after heat exchange with the mainboard 20 can be smoothly discharged. In this way, the air outlet area is increased, the residence time of the air after heat exchange with the mainboard 20 in the box body is reduced, and the heat dissipation efficiency is improved. The working temperature of the mainboard 10 can be further reduced, and the stability and service life of the mainboard 20 are further improved, so as to improve the stability and performance of the air conditioner.

[0072] In combination with Figure 5 and Figure 11, in some embodiments, in order to avoid the flame entering the cabinet 40 of the air conditioner along with the air flow, the second heat dissipation passage 50 is provided with a first air inlet 501 which is in communication with the opening 101 and a second air inlet 502 which is in communication with the cabinet 40 of the air conditioner. The first air inlet 501 and the second air inlet 502 are arranged at an angle. The included angle between the first air inlet 501 and the second air inlet 502 can be an acute angle, a right angle or an obtuse angle.

[0073] In some embodiments, the first air inlet 501 and the second air inlet 502 are arranged at an angle. When a failure of the mainboard 20 burning occurs, the air flow enters the second heat dissipation passage 50 from the first air inlet 501 and is discharged into the cabinet 40 of the air conditioner through the second air inlet 502, and the air flow path is bent. In this way, the flow direction of the air flow is changed, so as to increase the path length of the air flow in the passing process, and thus increase the resistance when the air flow passes. Due to the increase of the resistance, the flame is hindered when it follows the air flow to enter the cabinet 40 of the air conditioner. In this way, the possibility of the flame entering the cabinet 40 of the air conditioner can be effectively reduced, so as to ensure the safety of the equipment in the cabinet 40 of the air conditioner.

[0074] In combination with Figure 5 and Figure 11, in some embodiments, the opening of the first air inlet 501 is oriented in the same direction as the opening of the opening 101. When a failure of the mainboard 20 burning occurs, the air flow reaches the first air inlet 501 from the opening 101, and the air flow path is bent. In this way, the flow direction of the air flow is changed, so as to increase the path length of the air flow in the passing process, and thus increase the resistance when the air flow passes. Due to the increase of the resistance, the flame is hindered when it follows the air flow to enter the cabinet 40 of the air conditioner. In this way, the possibility of the flame entering the cabinet 40 of the air conditioner can be effectively reduced, so as to ensure the safety of the equipment in the cabinet 40 of the air conditioner.

[0075] Based on the same inventive concept, the disclosure also proposes an air conditioner employing the electric control assembly. The specific structure of the electric control assembly refers to the above-mentioned embodiments. As all the technical solutions of the above-mentioned embodiments are employed, at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments are achieved, which will not be repeated here.

[0076] In combination with FIG. 12, in some embodiments, the air conditioner comprises a cabinet 40. The first heat dissipation channel 30 of the electric control assembly communicates with the cabinet 40. The heat radiation between the first surface 201 and the bottom surface is guided into the cabinet 40 of the air conditioner through the first heat dissipation channel 30 to achieve heat dissipation of the first surface 201, so that the heat radiation generated by the mainboard 20 can be effectively dissipated. Thereby, the working temperature of the mainboard 20 is reduced, and the stability and service life thereof are improved. Normal work of the mainboard 20 can also be ensured, thereby improving the overall performance and efficiency of the air conditioner.

[0077] As the mounting structure is provided with the bottom surface and the opening opposite to the bottom surface, the mainboard is arranged in the mounting structure and is provided with the first surface and the second surface arranged oppositely, the first surface faces the bottom surface, the second surface faces the opening, and the first heat dissipation channel is arranged between the first surface and the bottom surface, when the air conditioner is running, the fan assembly in the cabinet of the air conditioner operates to make the air flow in the cabinet, as the first heat dissipation channel communicates with the cabinet of the air conditioner, the air in the first heat dissipation channel will be extracted into the cabinet to form negative pressure to change the flow direction of the air flow. When the mainboard works, the mainboard will generate heat radiation. The heat radiation between the first surface and the bottom surface will be sucked into the first heat dissipation channel and enter the cabinet of the air conditioner through the first heat dissipation channel. Under the combined action of the operation of the fan assembly and the negative pressure effect of the first heat dissipation channel, the heat radiation generated by the mainboard can be effectively dissipated to achieve heat dissipation of the first surface. In this way, the working temperature of the mainboard is reduced, and the stability and service life of the mainboard are improved. Normal work of the mainboard can also be ensured to improve the overall performance and efficiency of the air conditioner. The heat radiation of the mainboard enters the cabinet through the first heat dissipation channel, which can reduce the risk of damage of the mainboard due to overheating, thereby prolonging the service life of the mainboard. It can also reduce the risk of fire and other safety hazards caused by high temperature of the mainboard, and improve the user experience. As the second surface faces the opening, when the mainboard works, the heat generated by the mainboard can be directly discharged from the mounting structure through the opening, and the heat generated by the mainboard can be effectively dissipated. In this way, the possibility of heat accumulation in the mainboard is reduced to achieve heat dissipation of the second surface. The working temperature of the mainboard can also be reduced to improve the stability and service life of the mainboard and the stability and performance of the air conditioner.

[0078] In the description of the disclosure, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the disclosure and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the disclosure.

[0079] In addition, in the present disclosure, the description such as "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or implying the number of technical features indicated. Therefore, the features defined as "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the technical solutions of various embodiments can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the protection scope required by the present disclosure.

[0080] In the description of the disclosure, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the "upper", "above" and "above" of the first feature to the second feature include the first feature above and obliquely above the second feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include the first feature below and obliquely below the second feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0081] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, a person skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0082] Although preferred embodiments of the present disclosure have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this disclosure.

[0083] Obviously, those skilled in the art can make various modifications and variations to this disclosure without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of this disclosure and their equivalents, this disclosure is also intended to include such modifications and variations.

Claims

1. An electric control assembly, comprising: a mounting structure provided with a bottom surface and an opening opposite to the bottom surface; a main board arranged in the mounting structure and provided with a first surface and a second surface arranged oppositely, the first surface faces the bottom surface, and the second surface faces the opening; wherein a first heat dissipation channel is arranged between the first surface and the bottom surface, and the first heat dissipation channel is communicated with a cabinet of an air conditioner.

2. The electrically controlled assembly of claim 1, wherein, the mounting structure comprises: an electric control box provided with a heat dissipation groove communicated with the cabinet of the air conditioner; a main board mounting box arranged in the electric control box and provided with the opening; wherein the main board is arranged in the main board mounting box, the main board mounting box is provided with a plurality of first heat dissipation holes, the plurality of first heat dissipation holes are located between the first surface and the electric control box, the plurality of first heat dissipation holes are communicated with the heat dissipation groove to form the first heat dissipation channel.

3. The electrically controlled assembly of claim 1 or 2, wherein, the heat dissipation groove comprises a first groove and a second groove communicated with the first groove, the depth of the second groove is greater than the depth of the first groove, and the second groove is communicated with the cabinet of the air conditioner.

4. The electrically controlled assembly of claim 3, wherein, the second groove comprises a first sub-groove wall communicated with the first groove and a second sub-groove wall communicated with the first sub-groove wall, the second sub-groove wall is arranged in a stepped manner with the first groove, and the second groove is communicated with the cabinet of the air conditioner; the second sub-groove wall is communicated with the cabinet of the air conditioner at one side of the first sub-groove wall.

5. The electrically controlled assembly of claim 3 or 4, wherein, the main board mounting box is provided with a positioning portion, and the positioning portion is capable of being embedded in the second groove.

6. The electrically controlled assembly of claim 5, wherein, the positioning portion is provided with a heat conduction groove communicated with the second groove; wherein the heat conduction groove is located between the first surface and the second groove.

7. The electrically controlled assembly of any one of claims 1-6, wherein, the electric control box is provided with a first wiring hole for air inlet and a second wiring hole for air outlet arranged in a spaced manner, and the first wiring hole and the second wiring hole are communicated with the opening and the cabinet of the air conditioner.

8. The electrically controlled assembly of claim 7, wherein, the first wiring hole and the second wiring hole are arranged in a staggered manner with the main board mounting box.

9. The electrically controlled assembly of claim 7 or 8, wherein, the first wiring hole and the second wiring hole are arranged at an angle.

10. The electrically controlled assembly of claim 7 or 8, wherein, the electric control box is provided with an air inlet communicated with the opening and the cabinet of the air conditioner, the air inlet is located at the same side of the electric control box as the first wiring hole and is arranged in a spaced manner with the first wiring hole.

11. The electrically controlled assembly of any one of claims 7-10, wherein, the electric control box is provided with a second heat dissipation channel communicated with the opening and the cabinet of the air conditioner, and the main board is located between the second heat dissipation channel and the second wiring hole.

12. The electrically controlled assembly of claim 11, wherein, the second heat dissipation channel is provided with a first air outlet communicated with the opening and a second air outlet communicated with the cabinet of the air conditioner, and the first air outlet and the second air outlet are arranged at an angle.

13. An air conditioner comprising a cabinet and an electric control assembly according to any one of claims 1-12, and the first heat dissipation channel of the electric control assembly is communicated with the cabinet.

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