Household control screen

Abstract

The utility model discloses a household control screen comprising a housing, a touch screen is embedded on the front wall surface of the housing, and a plurality of inner side heat radiation fins are arranged on the rear wall surface of the housing at intervals; the main air duct comprises a pair of main ventilation openings formed in the two sides of the shell, a pair of main ventilation pipes communicated with the main ventilation openings, and a channel formed by a semi-ellipsoidal surface formed by the free ends of a plurality of inner side heat dissipation fins and a front wall surface; a main fan is arranged on one main ventilation pipe, and a fan cover is arranged on the other main ventilation pipe in a covering mode. The secondary air duct comprises a pair of secondary ventilation openings formed in the side walls of the two sides of the shell, a pair of secondary ventilation pipes communicating with the secondary ventilation openings, and a channel formed by the rear wall face and the front wall face; wherein a secondary fan is arranged on one secondary ventilation opening, and a fan cover is arranged on the other secondary ventilation opening in a covering mode. Wherein the circuit board is mounted on a semi-ellipsoidal surface formed by the free ends of the plurality of inner radiating fins; and the plurality of interface structures are mounted in the secondary air duct. According to the utility model, the overall heat dissipation efficiency can be obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building controllers. More specifically, the utility model relates to a household control panel. Background Art

[0002] Due to the integration of multiple electronic components on the circuit board, during operation, for example, the power consumption of the chip itself is high, so it generates a large amount of heat and has high requirements for heat dissipation. When other electronic components are added, the heat generation is even greater. The passive heat dissipation mode using only fins can no longer meet its heat dissipation requirements. If the water-cooled heat dissipation mode is adopted, components such as water pumps and water pipes are required, which is not friendly to the household control panel with a small volume and needs to be powered on. Therefore, it is urgent to develop and design a layout of a heat dissipation structure with high heat dissipation efficiency and suitable for the household control panel. Summary of the Utility Model

[0003] An object of the utility model is to solve at least the above problems and provide at least the advantages described later.

[0004] To achieve these and other advantages in accordance with the present utility model, there is provided a household control panel, comprising:

[0005] A housing, on the front wall surface of which a touch screen is embedded, on the inner rear wall surface of the housing, a plurality of inner heat dissipation fins are arranged at intervals, the inner heat dissipation fins are arranged vertically, and a plurality of interface relief holes are opened on the rear wall surface of the housing;

[0006] A main air duct, which is arranged at a position close to the middle of the housing, the main air duct includes a pair of main ventilation openings opened on the two side walls of the housing, a pair of frustum-shaped main ventilation pipes communicated with the main ventilation openings, and a channel formed by the semi-ellipsoidal surface formed by the free ends of a plurality of inner heat dissipation fins and the front wall surface of the housing; wherein, a main fan is provided on one main ventilation pipe, and a wind cover is covered on the main ventilation opening of the other main ventilation pipe, and a plurality of rectangular heat dissipation holes are opened on the wind cover, wherein, the outer end of the main ventilation pipe facing the outside is larger than its inner end facing the inside;

[0007] A secondary air duct, which is arranged below the main air duct, the secondary air duct includes a pair of secondary ventilation openings opened on the two side walls of the housing, a pair of frustum-shaped secondary ventilation pipes communicated with the secondary ventilation openings, and a channel formed by the rear wall surface and the front wall surface of the housing; wherein, a secondary fan is provided on one secondary ventilation pipe, and a wind cover is covered on the secondary ventilation opening connected to the other secondary ventilation pipe, and a plurality of rectangular heat dissipation holes are opened on the wind cover, the secondary fan and the main fan are located on the same side of the housing, wherein, the outer end of the secondary ventilation pipe facing the outside is larger than its inner end facing the inside;

[0008] Among them, the circuit board of the household control panel is installed on the semi-ellipsoidal surface formed by the free ends of a plurality of inner heat dissipation fins; a plurality of interface structures are installed in the secondary air duct and are located between two secondary ventilation pipes, and the interface ends of the interface structures are correspondingly fixed on a plurality of interface relief holes.

[0009] Preferably, the free ends of the plurality of inner heat dissipation fins located above the main air duct form an arc shape.

[0010] Preferably, it further includes a plurality of outer heat dissipation fins. The plurality of outer heat dissipation fins are arranged corresponding to the plurality of inner heat dissipation fins while avoiding the interface relief holes, and the free ends of the plurality of outer heat dissipation fins form a wavy surface.

[0011] Preferably, air guide plates provided with spiral holes are covered on the main ventilation openings corresponding to the main fans and the secondary ventilation openings corresponding to the secondary fans. Among them, the spiral direction of the spiral holes is consistent with the rotation directions of the corresponding main fans and secondary fans.

[0012] Preferably, the material of the inner heat dissipation fins is aluminum or copper, and a heat-conducting insulating layer is laid on the part of the free ends of the inner heat dissipation fins that form a semi-ellipsoidal surface.

[0013] Preferably, the interface structure includes a MODBUS interface, a BACnet interface, a network interface, a USB interface, a power interface, a plurality of expansion ports DO, and a plurality of expansion ports AI.

[0014] The utility model has at least the following beneficial effects: By arranging a main air duct and a secondary air duct on the housing, it plays a role in changing the speed of the air entering the housing. Especially, it accelerates when the initial cold air enters and the end hot air flows out, and decelerates when contacting and exchanging heat with the circuit board in the middle (increasing the heat exchange time), ultimately achieving a significant improvement in the overall heat dissipation efficiency.

[0015] Other advantages, objectives, and features of the utility model will be partially reflected by the following description, and partially will also be understood by those skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the inner rear wall surface of the housing of one technical solution of the utility model;

[0017] Figure 2 It is a top view of the main air duct of one technical solution of the utility model;

[0018] Figure 3 It is a schematic structural diagram of the air guide plate along a side view of the housing of one technical solution of the utility model;

[0019] Figure 4 Schematic structural diagram of the heat dissipation holes of one of the technical solutions of the present utility model;

[0020] Figure 5 Schematic front structure diagram of the housing of one of the technical solutions of the present utility model;

[0021] Figure 6 Schematic rear structure diagram of the housing of one of the technical solutions of the present utility model;

[0022] Figure 7 Schematic application connection diagram of the expansion port DO and the expansion port AI of one of the technical solutions of the present utility model;

[0023] Figure 8 Schematic diagram of the use of the interface structure of one of the technical solutions of the present utility model;

[0024] Figure 9 is Figure 6 Enlarged structural diagram at location A in

[0025] Explanation of reference numerals in the drawings of the specification is as follows: housing 100, touch screen 11, inner heat dissipation fins 12, main air duct 200, main ventilation pipe 21, semi-ellipsoidal surface 22, main fan 23, air hood 24, heat dissipation holes 25, air guiding plate 26, secondary air duct 300, secondary ventilation pipe 31, secondary fan 32, circuit board 13, interface structure 14, outer heat dissipation fins 15. Detailed implementation manners

[0026] The following further describes the present utility model in detail with reference to the drawings, so that those skilled in the art can implement it according to the description in the specification.

[0027] It should be noted that the experimental methods described in the following implementation manners are all conventional methods unless otherwise specified, and the reagents and materials can be obtained from commercial channels unless otherwise specified; in the description of the present utility model, the orientation or positional relationship indicated by the terms is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0028] As Figures 1 - 9 shown, the present utility model provides a household control panel, including:

[0029] A housing 100, on the front wall surface of which a touch screen 11 is embedded, on the inner rear wall surface of the housing 100, a plurality of inner heat dissipation fins 12 are arranged at intervals, the inner heat dissipation fins 12 are arranged vertically, and a plurality of interface relief holes are opened on the rear wall surface of the housing 100;

[0030] The main air duct 200 is disposed at a position near the middle of the housing 100. The main air duct 200 includes a pair of main ventilation openings formed on both side walls of the housing 100, a pair of frustum-shaped main ventilation pipes 21 communicated with the main ventilation openings, and a channel formed by the semi-ellipsoidal surface 22 formed by the free ends of a plurality of inner heat dissipation fins 12 and the front wall surface of the housing 100. Wherein, the outer end of the main ventilation pipe 21 is larger than its inner end. A main fan 23 is provided on one main ventilation pipe 21, and a wind hood 24 is covered on the main ventilation opening of the other main ventilation pipe 21. A plurality of rectangular heat dissipation holes 25 are formed in the wind hood 24. The external cold air is affected by the negative pressure of the main fan 23 from one side of the heat dissipation holes 25 and enters the main ventilation pipe 21. Since the main ventilation is frustum-shaped and flows from the end with a larger area to the end with a smaller area, it has an extrusion and acceleration effect on the air, so that the air flow rate changes and enters the channel. One side of the channel is a semi-ellipsoidal surface 22, and the space suddenly increases, so that the air flow rate decelerates, and it fully contacts the circuit board 13 installed at this position for more heat exchange, and then passes through the main ventilation pipe 21 on the other side in turn. And because the main fan 23 is located in this part, it can accelerate the outflow of hot air, and finally significantly improve the heat dissipation efficiency.

[0031] The secondary air duct 300 is disposed below the main air duct 200. The secondary air duct 300 includes a pair of secondary ventilation openings formed on both side walls of the housing 100, a pair of frustum-shaped secondary ventilation pipes 31 communicated with the secondary ventilation openings, and a channel formed by the rear wall surface and the front wall surface of the housing 100. Wherein, the outer end of the secondary ventilation pipe 31 is larger than its inner end. A secondary fan 32 is provided on one secondary ventilation pipe 31, and a wind hood is covered on the secondary ventilation opening connected to the other secondary ventilation pipe 31. A plurality of rectangular heat dissipation holes are formed in the wind hood. The secondary fan 32 and the main fan 23 are located on the same side of the housing 100. The heat dissipation principle of the secondary air duct 300 is similar to that of the main air duct 200, and will not be elaborated here. The secondary air duct 300 is mainly used to dissipate heat from the interface structure 14. Because the heat generated by the interface structure 14 is less, it can be not set as a semi-ellipsoidal surface shape to streamline the manufacturing process of the housing 100.

[0032] Wherein, the circuit board 13 of the household control panel is installed on the semi-ellipsoidal surface 22 formed by the free ends of a plurality of inner heat dissipation fins 12; a plurality of interface structures 14 are installed in the secondary air duct 300 and are located between the two secondary ventilation pipes 31. The interface ends of the interface structures 14 are correspondingly fixed on a plurality of interface relief holes. As Figure 1 shown, the installation positions of the circuit board 13 and each interface structure 14 are shown in dotted lines.

[0033] In the above technical solution, by arranging the main air duct 200 and the secondary air duct 300 on the shell 100, the speed of the air entering the shell 100 is changed, especially when the initial cold air enters and the hot air flows out at the end, it is accelerated, and the heat exchange in the middle part with the circuit board 13 is slowed down (increasing the heat exchange time), and finally the overall heat dissipation efficiency is significantly improved to meet the heat dissipation requirements of the household control panel.

[0034] In another technical solution, the free ends of the multiple inner heat dissipating fins 12 located above the main air duct 200 are formed into an arc shape. By forming a streamlined arc shape, the air can flow inside the shell 100, thereby fully contacting the inner heat dissipating fins 12. The heat is absorbed by the inner heat dissipating fins 12 and dissipated to the outside of the shell 100, thereby improving the heat dissipation efficiency.

[0035] In another technical solution, a plurality of outer heat dissipation fins 15 are further included. The plurality of outer heat dissipation fins 15 are arranged corresponding to the plurality of inner heat dissipation fins 12 avoiding the interface clearance holes, and the free ends of the plurality of outer heat dissipation fins 15 form a wavy surface. By arranging the outer heat dissipation fins 15 corresponding to the inner heat dissipation fins 12 outside the housing 100, the heat derived from the inner heat dissipation fins 12 can be accurately and efficiently dissipated quickly; the formation of the wavy surface not only has a streamlined heat dissipation efficiency, but also increases the heat dissipation area equivalently as a whole to improve the heat dissipation efficiency.

[0036] In another technical solution, the main vent corresponding to the main fan 23 and the secondary vent corresponding to the secondary fan 32 are covered with an air guide plate 26 with a spiral hole, wherein the spiral direction of the spiral hole is consistent with the rotation direction of the corresponding main fan 23 and secondary fan 32. The air guide plate 26 with a spiral hole can further enhance the outflow of hot air from the main ventilation pipe 21 and the secondary ventilation pipe 31, and also has a dust-proof function.

[0037] In another technical solution, the inner heat dissipation fins 12 are made of aluminum or copper, and a heat-conducting insulating layer is applied to the portion of the free end of the inner heat dissipation fins 12 that forms the semi-ellipsoidal surface 22. Aluminum or copper has high thermal conductivity, which can improve the efficiency of dissipating the heat inside the housing 100 to the outside of the housing 100.

[0038] In another technical solution, the interface structure 14 includes a MODBUS interface, a BACnet interface, a network interface, a USB interface, a power interface, multiple extension ports DO, and multiple extension ports AI. The household control panel integrates the above-mentioned multiple interface structures 14. Among them, the controlled device can be connected through the MODBUS interface to read modbus data. The controller or extension module can be connected through the BACnet interface to complete instruction output and data reading. Information can be transmitted to the host computer through the network interface, and the host computer can modify the human-machine interface. The modbus message in excel format can be imported into the touch screen 11 through the USB interface. Sensors can be externally connected through the extension port AI, and the switching quantity points of the control device can be connected through the extension port DO. The external power supply can be connected through the power interface to supply power to the entire household control panel. By integrating multiple interface structures 14, the status quo that the interface of the traditional building controller is relatively single and cannot connect data connection lines of various specifications is changed.

[0039] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the field, additional modifications can be easily made. Therefore, without departing from the general concept defined by the claims and the equivalent scope, the present invention is not limited to the specific details and the illustrated and described examples here.

Claims

1. Household control panel, characterized in that: include: A housing, a touch screen is embedded on the front wall of the housing, a plurality of inner heat dissipation fins are arranged at intervals on the inner rear wall of the housing, the inner heat dissipation fins are arranged vertically, and a plurality of interface holes are opened on the rear wall of the housing; A main air duct is arranged at a position close to the middle of the shell, and comprises a pair of main vents opened on the side walls of both sides of the shell, a pair of truncated cone-shaped main ventilation pipes connected with the main vents, and a channel formed by a semi-ellipsoidal surface formed by the free ends of a plurality of inner heat dissipation fins and a front wall surface of the shell; wherein a main fan is arranged on one main ventilation pipe, and a wind shield is arranged on the main ventilation port cover of the other main ventilation pipe, and a plurality of rectangular heat dissipation holes are arranged on the wind shield, wherein an end of the main ventilation pipe facing outward is larger than an end facing inward; A secondary air duct is arranged below the main air duct, the secondary air duct comprises a pair of secondary vents opened on the side walls of both sides of the shell, a pair of truncated cone-shaped secondary ventilation pipes connected to the secondary vents, and a channel formed by the rear wall and the front wall of the shell; wherein a secondary fan is arranged on one secondary ventilation pipe, and a wind shield is arranged on the upper cover of the secondary ventilation port connected to the other secondary ventilation pipe, and a plurality of rectangular heat dissipation holes are arranged on the wind shield, the secondary fan and the main fan are located on the same side of the shell, wherein the end of the secondary ventilation pipe facing the outside is larger than the end facing the inside; Among them, the circuit board of the household control panel is installed on a semi-ellipsoidal surface formed by the free ends of multiple inner heat dissipation fins; multiple interface structures are installed in the secondary air duct and located between two secondary ventilation pipes, and the interface ends of the interface structures are correspondingly fixed on multiple interface clearance holes.

2. The household control panel according to claim 1, characterized in that: The free ends of the parts of the plurality of inner heat dissipating fins located above the main air duct are formed in an arc shape.

3. The household control panel according to claim 1, characterized in that: It also includes a plurality of outer heat dissipation fins, which are arranged corresponding to the plurality of inner heat dissipation fins and avoid the interface clearance holes, and the free ends of the plurality of outer heat dissipation fins form a wavy surface.

4. The household control panel according to claim 1, characterized in that: The main ventilation opening corresponding to the main fan and the secondary ventilation opening corresponding to the secondary fan are both covered with air guide plates with spiral holes, wherein the spiral directions of the spiral holes are consistent with the rotation directions of the corresponding main fan and secondary fan.

5. The household control panel according to claim 1, characterized in that: The inner heat dissipation fins are made of aluminum or copper, and a heat-conducting insulating layer is provided on the portion of the free end of the inner heat dissipation fin that forms a semi-ellipsoidal surface.

6. The household control panel according to claim 1, characterized in that: The interface structure includes a MODBUS interface, a BACnet interface, a network interface, a USB interface, a power interface, a plurality of expansion ports DO and a plurality of expansion ports AI.

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