DDC network controller structure based on Ethernet communication and control

Abstract

The utility model discloses a DDC network controller structure based on Ethernet communication and control, which comprises a box body, the box body comprises a bottom shell and a shell cover, the bottom of the bottom shell is fixedly connected with a first circuit board, the first circuit board is connected with a supporting column, the supporting column is connected with a second circuit board, one side of the shell cover close to the bottom shell is fixedly connected with a third circuit board, and the third circuit board is connected with a second circuit board. A display screen is arranged on the third circuit board and is positioned in the display window; the first circuit board is fixedly connected with a first data line interface, the second circuit board is fixedly connected with a second data line interface, and the first data line interface and the second data line interface are located on the two sides of the box body respectively. According to the utility model, the circuit board is divided into the first circuit board, the second circuit board and the third circuit board which are arranged up and down, thereby reducing the installation size of the controller, and facilitating the arrangement and installation of the controller; and the first data wiring port and the second data wiring port are arranged on different sides, so that data lines can be conveniently connected.

Description

Technical Field

[0001] The utility model relates to the technical field of controller structures, and particularly relates to a DDC network controller structure based on Ethernet communication and control. Background Art

[0002] A DDC controller is a microprocessor-based device that monitors and controls various sensors and actuators through digital signal processing technology, various algorithms, and control strategies. The role of the DDC controller in intelligent buildings is crucial. As the core component of the building automation system, it realizes the precise control and management of various devices in the building through digital and intelligent means.

[0003] For example, a smart DDC controller disclosed in Chinese Patent Publication No. CN204695053U discloses the basic structure of the controller. With the improvement of the intelligence level of existing buildings, the emergence of a DDC network controller based on Ethernet communication and control enables the controller to connect with a large number of devices. It can assign different addresses to different devices and send commands according to different addresses to communicate and control with different devices. With the increase in building devices and monitoring devices, the number of connectors of such controllers increases, and the functions of the circuit board also increase. In order to ensure more interfaces and more powerful functions, the circuit board of the existing controller is made larger and larger, making the product structure more bulky, increasing the installation space, and being inconvenient for installation. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above technical problems and provide a DDC network controller structure based on Ethernet communication and control.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions to implement:

[0006] A DDC network controller structure based on Ethernet communication and control, including a box body. The box body includes a bottom shell and a shell cover fixed on the bottom shell. The bottom shell and the shell cover are combined into a box-shaped structure for accommodating components inside. A first circuit board is fixedly connected to the bottom of the bottom shell. A support column is connected to the first circuit board by bolts. A second circuit board is connected to the support column by bolts. A display window is opened on the shell cover. A third circuit board is fixedly connected to the side of the shell cover close to the bottom shell. A display screen is arranged on the third circuit board and the display screen is located in the display window. A first data line interface is fixedly connected to the first circuit board. A second data line interface is fixedly connected to the second circuit board. A first interface avoidance opening is opened on the bottom shell. The first data line interface is located in the first interface avoidance opening. A second interface avoidance opening is opened on the shell cover. The second data line interface is located in the second interface avoidance opening. And the first data connection port and the second data connection port are respectively located on both sides of the box body.

[0007] Further, a covering frame is arranged on the shell cover. The covering frame is snap-connected in the display window to shield the gap between the display screen and the display window.

[0008] Further, an installation groove for installing on a card rail is arranged at the bottom of the bottom shell. A fixed buckle is fixedly connected to one side of the installation groove. A movable buckle is arranged on the other side of the installation groove. The movable buckle and the fixed buckle are respectively used for snap-connecting on both sides of the card rail to fix the box body.

[0009] Further, a limit cavity for accommodating the movable buckle is arranged on the bottom shell. Limit plates are fixedly connected to both sides of the limit cavity. A snap connection notch is opened on the side of the limit cavity close to the installation groove. A locking notch is opened on the side of the limit cavity far from the installation groove. A locking tongue is arranged at one end of the movable buckle and the locking tongue passes through the snap connection notch for snap-connecting on the card rail. The other end of the movable buckle is locked in the locking notch. A wedge-shaped inclined surface is arranged on the side of the locking tongue far from the bottom shell.

[0010] Further, the movable buckle includes a snap connection frame. A locking rod is fixedly connected inside the snap connection frame. The locking rod is fixed in the middle of the snap connection frame in a cantilever form. An upward protruding locking portion is fixedly connected to the upper surface of the locking rod. The locking rod passes through the locking notch and the locking portion is located inside the bottom shell to block the movable buckle from moving away from the installation groove direction in the bottom shell. An elastic frame is fixedly connected to one end of the snap connection frame far from the locking notch. One end of the elastic frame far from the snap connection frame is fixedly connected to the locking tongue. The elastic frame is located in the limit cavity and fits on the inner wall of the bottom shell. A stop rod is fixedly connected to the bottom shell. The stop rod is located above the elastic frame to limit the elastic frame between the bottom of the bottom shell and the stop rod.

[0011] Further, the elastic frame includes elastic arms connected to the clamping frame. Both sides of the elastic arms are fixedly connected with side arms. The ends of the side arms are fixedly connected with connecting arms. The locking tongue is fixed on the connecting arm. A plurality of curved elastic assisting arms are fixedly connected between the two side arms.

[0012] The DDC network controller structure based on Ethernet communication and control provided by the present utility model has the following beneficial effects: By splitting the circuit board into a first circuit board, a second circuit board, and a third circuit board and arranging them vertically, the installation size of the controller is reduced, facilitating the layout and installation of the controller. And the first data connection port on the first circuit board and the second data connection port on the second circuit board are arranged on different sides, facilitating the connection of data lines. During installation, by clamping the fixed buckle on one side of the card rail and pressing the box body with the movable buckle against the card rail, the locking tongue retracts into the clamping notch under the extrusion of the card rail. When the locking tongue crosses the card rail, the locking tongue extends under the action of elastic force and is clamped on the back of the card rail, thus clamping the box body on the card rail, which is convenient for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The following further describes in detail the specific embodiments of the present utility model with reference to the drawings:

[0014] Figure 1 is an exploded structural schematic diagram of a DDC network controller structure based on Ethernet communication and control provided by the present utility model;

[0015] Figure 2 is a three-dimensional structural schematic diagram of a DDC network controller structure based on Ethernet communication and control provided by the present utility model Figure 1 ;

[0016] Figure 3 is a three-dimensional structural schematic diagram of a DDC network controller structure based on Ethernet communication and control provided by the present utility model Figure 2 ;

[0017] Figure 4 is a cross-sectional schematic diagram of the cooperation between a DDC network controller structure based on Ethernet communication and control provided by the present utility model and a card rail;

[0018] Figure 5 is a three-dimensional structural schematic diagram of the bottom shell in a DDC network controller structure based on Ethernet communication and control provided by the present utility model;

[0019] Figure 6 is a partial structural schematic diagram of the bottom shell in a DDC network controller structure based on Ethernet communication and control provided by the present utility model;

[0020] Figure 7Partial structural schematic diagram of the cooperation state between the bottom shell and the movable buckle in a DDC network controller structure based on Ethernet communication and control provided by the present utility model;

[0021] Figure 8 Stereoscopic structural schematic diagram of the movable buckle in a DDC network controller structure based on Ethernet communication and control provided by the present utility model.

[0022] Description of the reference numerals in the figure: 1. Box body; 11. Bottom shell; 12. Shell cover; 13. First interface avoidance opening; 14. Second interface avoidance opening; 15. Covering frame; 16. Installation groove; 17. Fixed buckle; 18. Limiting cavity; 19. Limiting plate; 110. Clamping notch; 111. Locking notch; 112. Stop bar; 2. First circuit board; 21. First data line interface; 3. Support column; 4. Second circuit board; 41. Second data line interface; 5. Third circuit board; 51. Display screen; 6. Movable buckle; 61. Lock tongue; 62. Wedge-shaped inclined surface; 63. Clamping frame; 64. Locking rod; 65. Locking part; 66. Elastic frame; 661. Elastic arm; 662. Side arm; 663. Connecting arm; 664. Auxiliary elastic arm; a1. Clamping rail. Detailed implementation manners

[0023] It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0025] It should be noted that all directional indications (such as up - down - left - right - front - back...) in the embodiments of the present utility model are only used to explain the relative positional relationship - movement conditions, etc. between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly. The described connection can be a direct connection or an indirect connection.

[0026] Such as Figures 1-8As shown in the figure, a DDC network controller structure based on Ethernet communication and control includes a box body 1. The box body 1 includes a bottom shell 11 and a shell cover 12 fixed on the bottom shell 11. The bottom shell 11 and the shell cover 12 are combined into a box-shaped structure for accommodating components inside. A first circuit board 2 is fixedly connected to the bottom of the bottom shell 11. A support column 3 is bolted to the first circuit board 2, and a second circuit board 4 is bolted to the support column 3. A display window is opened on the shell cover 12. A third circuit board 5 is fixedly connected to the side of the shell cover 12 close to the bottom shell 11. A display screen 51 is arranged on the third circuit board 5 and the display screen 51 is located in the display window. A first data line interface 21 is fixedly connected to the first circuit board 2. A second data line interface 41 is fixedly connected to the second circuit board 4. A first interface avoidance opening 13 is opened on the bottom shell 11, and the first data line interface 21 is located in the first interface avoidance opening 13. A second interface avoidance opening 14 is opened on the shell cover 12, and the second data line interface 41 is located in the second interface avoidance opening 14. And the first data connection port and the second data connection port are respectively located on both sides of the box body 1.

[0027] Adopting the above technical solution, by splitting the circuit board into the first circuit board 2, the second circuit board 4, and the third circuit board 5 and arranging them up and down, the installation size of the controller is reduced, which is convenient for the layout and installation of the controller. And the first data connection port on the first circuit board 2 and the second data connection port on the second circuit board 4 are arranged on different sides, which is convenient for connecting the data line.

[0028] Specifically, a covering frame 15 is arranged on the shell cover 12, and the covering frame 15 is clamped in the display window to shield the gap between the display screen 51 and the display window.

[0029] Specifically, an installation groove 16 for installing on a card rail a1 is arranged at the bottom of the bottom shell 11. A fixed buckle 17 is fixedly connected to one side of the installation groove 16, and a movable buckle 6 is arranged on the other side of the installation groove 16. The movable buckle 6 and the fixed buckle 17 are respectively used for clamping on both sides of the card rail a1 to fix the box body 1. During installation, the box body 1 is clamped on the card rail a1 through the movable buckle 6 and the fixed buckle 17, without the need for screw installation and fixation, which is convenient for installation, fixation and disassembly.

[0030] Specifically, a limiting cavity 18 for accommodating the movable buckle 6 is provided on the bottom shell 11, and limiting plates 19 are fixedly connected to both sides of the limiting cavity 18. A clamping notch 110 is provided on the side of the limiting cavity 18 close to the mounting groove 16, and a locking notch 111 is provided on the side of the limiting cavity 18 away from the mounting groove 16. A locking tongue 61 is provided at one end of the movable buckle 6, and the locking tongue 61 passes through the clamping notch 110 for clamping on the rail a1, and the other end of the movable buckle 6 is locked in the locking notch 111, and a wedge-shaped inclined surface 62 is provided on the side of the locking tongue 61 away from the bottom shell 11.

[0031] Specifically, the active buckle 6 includes a snap-fit ​​frame 63, in which a locking rod 64 is fixedly connected, and the locking rod 64 is fixed to the middle part of the snap-fit ​​frame 63 in a cantilevered form, and an upwardly protruding locking portion 65 is fixedly connected to the upper surface of the locking rod 64, and the locking rod 64 passes through the locking notch 111 and the locking portion 65 is located on the inner side of the bottom shell 11 to prevent the active buckle 6 from moving from the bottom shell 11 to the direction away from the mounting groove 16; the snap-fit ​​frame 63 is fixedly connected to an elastic frame 66 at one end away from the locking notch 111, and the elastic frame 66 is fixedly connected to the lock tongue 61 at one end away from the snap-fit ​​frame 63, and the elastic frame 66 is located in the limiting cavity 18 and fits on the inner wall of the bottom shell 11, and a shift rod 112 is fixedly connected to the bottom shell 11, and the shift rod 112 is located above the elastic frame 66 to limit the elastic frame 66 between the bottom of the bottom shell 11 and the shift rod 112. The movable buckle 6 is limited in the limiting cavity 18 from both ends by the locking portion 65 and the elastic frame 66, so that the position of the movable buckle 6 is kept relatively stable; when installing, the box body 1 is placed on the card rail a1, and the box body 1 is pressed so that the lock tongue 61 is squeezed with the card rail a1, so that the lock tongue 61 retracts into the card connection notch 110 under the pressure of the card rail a1, and when the lock tongue 61 passes over the card rail a1, the lock tongue 61 extends out under the action of elastic force and is connected to the back of the card rail a1, so that the box body 1 is connected to the card rail a1, and the box body 1 is connected to the card rail a1. The locking rod 64 is cantilevered and fixed on the clamping frame 63, so that the locking rod 64 has a certain elasticity. When taking out the movable buckle 6, the locking rod 64 is pressed downward to make the locking portion 65 bypass the locking notch 111 so that the locking portion 65 moves to the outside of the bottom shell 11, thereby moving the movable buckle 6 as a whole away from the installation groove 16, so that the locking tongue 61 can be retracted into the clamping notch, and the locking state of the rail a1 can be released, so that the box body 1 can be removed from the rail a1, thereby facilitating the removal of the controller.

[0032] Specifically, the elastic frame 66 includes elastic arms 661 connected to the clamping frame 63. Side arms 662 are fixedly connected to both sides of the elastic arms 661. A connecting arm 663 is fixedly connected to the end of the side arms 662. The locking tongue 61 is fixed on the connecting arm 663. A plurality of curved elastic assisting arms 664 are fixedly connected between the two side arms 662. Elastic force is provided by the slender elastic arms 661 and the elastic assisting arms 664, enabling the locking tongue 61 to extend and retract from the clamping notch 110. There is no need to install a spring, reducing the structural components and making the structure more concise.

[0033] For the parts not involved in this technical solution, the prior art can be adopted for implementation.

[0034] The foregoing has shown and described the basic principles, main features and characteristics of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention includes the appended claims and their equivalents.

Claims

1. A DDC network controller structure based on Ethernet communication and control, characterized in that: The box body (1) comprises a bottom shell (11) and a shell cover (12) fixed on the bottom shell (11); the bottom shell (11) and the shell cover (12) are combined into a box-shaped structure for accommodating components; a first circuit board (2) is fixedly connected to the bottom of the bottom shell (11); a support column (3) is connected to the first circuit board (2) by bolts; a second circuit board (4) is connected to the support column (3) by bolts; a display window is provided on the shell cover (12); a third circuit board (5) is fixedly connected to the side of the shell cover (12) close to the bottom shell (11); and a display window is provided on the third circuit board (5). The present invention relates to a box body (1) having a display screen (51) and the display screen (51) is located in a display window; the first circuit board (2) is fixedly connected with a first data line interface (21), the second circuit board (4) is fixedly connected with a second data line interface (41), the bottom shell (11) is provided with a first interface avoidance opening (13), the first data line interface (21) is located in the first interface avoidance opening (13), the shell cover (12) is provided with a second interface avoidance opening (14), the second data line interface (41) is located in the second interface avoidance opening (14), and the first data wiring port and the second data wiring port are respectively located on two sides of the box body (1).

2. A DDC network controller structure based on Ethernet communication and control according to claim 1, characterized in that: The shell cover (12) is provided with a covering frame (15), and the covering frame (15) is snapped into the display window to cover the gap between the display screen (51) and the display window.

3. A DDC network controller structure based on Ethernet communication and control according to claim 1, characterized in that: The bottom of the bottom shell (11) is provided with a mounting groove (16) for mounting on the rail (a1); one side of the mounting groove (16) is fixedly connected with a fixed buckle (17); the other side of the mounting groove (16) is provided with a movable buckle (6); the movable buckle (6) and the fixed buckle (17) are respectively used to be clamped on both sides of the rail (a1) to fix the box body (1).

4. A DDC network controller structure based on Ethernet communication and control according to claim 3, characterized in that: The bottom shell (11) is provided with a limiting cavity (18) for accommodating the movable buckle (6); both sides of the limiting cavity (18) are fixedly connected to limiting plates (19); a side of the limiting cavity (18) close to the mounting groove (16) is provided with a clamping notch (110); a side of the limiting cavity (18) away from the mounting groove (16) is provided with a locking notch (111); one end of the movable buckle (6) is provided with a locking tongue (61) and the locking tongue (61) passes through the clamping notch (110) for clamping on the clamping rail (a1); the other end of the movable buckle (6) is locked in the locking notch (111); and a wedge-shaped inclined surface (62) is provided on the side of the locking tongue (61) away from the bottom shell (11).

5. A DDC network controller structure based on Ethernet communication and control according to claim 4, characterized in that: The movable buckle (6) comprises a clamping frame (63), a locking rod (64) is fixedly connected inside the clamping frame (63), the locking rod (64) is fixed to the middle part of the clamping frame (63) in a cantilevered form, an upwardly protruding locking portion (65) is fixedly connected to the upper surface of the locking rod (64), the locking rod (64) passes through the locking notch (111) and the locking portion (65) is located on the inner side of the bottom shell (11) to prevent the movable buckle (6) from moving from the bottom shell (11) to a direction away from the mounting groove (16); An elastic frame (66) is fixedly connected to one end of the snap-fit ​​frame (63) away from the locking notch (111); an end of the elastic frame (66) away from the snap-fit ​​frame (63) is fixedly connected to the lock tongue (61); the elastic frame (66) is located in the limiting cavity (18) and fits on the inner wall of the bottom shell (11); a shift rod (112) is fixedly connected to the bottom shell (11); the shift rod (112) is located above the elastic frame (66) to limit the elastic frame (66) between the bottom of the bottom shell (11) and the shift rod (112).

6. A DDC network controller structure based on Ethernet communication and control according to claim 5, characterized in that: The elastic frame (66) comprises an elastic arm (661) connected to the clamping frame (63); side arms (662) are fixedly connected to both sides of the elastic arm (661); the ends of the side arms (662) are fixedly connected to connecting arms (663); the locking tongue (61) is fixed on the connecting arm (663); and a plurality of curved spring-assisting arms (664) are fixedly connected between the two side arms (662).

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