Single-port multi-layer controller structure

Abstract

The invention provides a single-port multi-layer controller structure. The single-port multi-layer controller structure comprises a base, an end cover, a circuit board assembly, an upper circuit board and a supporting frame, the base and the end cover are connected to form a closed accommodating cavity, the circuit board assembly, the upper circuit board and the supporting frame are sequentially stacked in the accommodating cavity, and the circuit board assembly is electrically connected with the upper circuit board; a heat dissipation table is arranged on the inner end face of the containing cavity, and the circuit board assembly is attached to the heat dissipation table; the circuit board assembly and the upper circuit board are respectively connected with an aviation socket, and the aviation sockets are correspondingly arranged on one side of the base. According to the single-port multi-layer controller structure, the structural layout is more reasonable, the circuit board assembly and the upper circuit board are arranged in a layered mode, the compactness of the internal space structure of the controller is higher, the circuit boards are high in connection reliability and convenient to disassemble, and the controller runs stably.

Description

Technical Field

[0001] This application belongs to the technical field of diesel engine electronic control, and particularly relates to a single-port multi-layer controller structure. Background Art

[0002] With the development of diesel engine digital technology, the control and monitoring functions of diesel engines have become increasingly complex, and the number and scale of electronic components have been increasing continuously. However, due to the compact internal space structure of the controller, the space utilization rate of internal components is low. In addition, when the controller works, it will generate relatively high heat. The existing means usually add a heat dissipation cold plate inside the controller. Since the heat dissipation cold plate is relatively large in volume, adding the heat dissipation cold plate will further compress the internal space of the controller and increase the cost. Summary of the Invention

[0003] In view of this, this application aims to propose a single-port multi-layer controller structure to solve at least one of the above problems.

[0004] To achieve the above object, the technical solution of this application is realized as follows: This application provides a single-port multi-layer controller structure, including a base, an end cover, a circuit board assembly, an upper circuit board, and a support frame; The base is connected to the end cover to form a closed accommodation cavity, and the circuit board assembly, the upper circuit board, and the support frame are sequentially stacked and installed in the accommodation cavity. The circuit board assembly is electrically connected to the upper circuit board; A heat dissipation platform is provided on the inner end surface of the accommodation cavity, and the circuit board assembly is attached to the heat dissipation platform; The circuit board assembly and the upper circuit board are respectively connected with aviation sockets, and the aviation sockets are correspondingly installed on one side of the base.

[0005] Further, a plurality of internal threaded stud columns are provided in the base. Internal threaded holes are provided in both the internal threaded stud columns and the heat dissipation platform. Light holes corresponding to the internal threaded holes are provided on the circuit board assembly, the upper circuit board, and the support frame. Fastening bolts pass through the light holes and are assembled and connected with the internal threaded holes, so that the circuit board assembly, the upper circuit board, and the support frame are fixedly connected to the base; A plurality of assembly holes for installing the aviation sockets are provided on one side wall of the base.

[0006] Further, a plurality of connection holes are also provided on one side wall of the base, and air nozzles and screw plugs are installed in the connection holes.

[0007] Further, lugs are provided at the edge position of the base, and through holes are provided on the lugs for installation and connection with external devices; A grounding wire is also connected to the side wall of the base.

[0008] Further, both the circuit board assembly and the upper circuit board include printed circuit boards. The printed circuit boards are electrically connected to the aviation socket through flexible boards. The printed circuit board of the circuit board assembly is also connected to another aviation socket through wires to provide power supply; The two printed circuit boards are correspondingly connected through an inter-board connection base and an inter-board connection head.

[0009] Further, the support frame is a thin-walled frame member, on which several pipe columns are provided. Light holes are provided on the pipe columns for fixing it in the base; Positioning holes are provided on the printed circuit board, and positioning pins corresponding to the positioning holes are provided on the support frame to perform positioning connection on the printed circuit board.

[0010] Further, several counterbores are provided at the edge position of the end cover. Through holes are provided in the counterbores and are fixedly connected to the base through hexagon socket head cap screws; A rubber seal groove is provided on the circumferential edge of the bottom end surface of the end cover, and a conductive rubber strip is installed in the rubber seal groove.

[0011] Compared with the prior art, the single-port multi-layer controller structure described in this application has the following beneficial effects: The single-port multi-layer controller structure described in this application adopts a multi-layer stacked structure, with a more reasonable structural layout. Compared with the existing controllers, the arrangement of components is more compact, the fixing reliability of the circuit board is higher, the internal space utilization rate of the controller can be effectively improved, and the overall structural stability of the controller is high; at the same time, the heat dissipation effect of the circuit board is ensured, the controller runs reliably, and it has the advantages of convenient maintenance and high stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. In the drawings: Figure 1 is a schematic diagram of the overall structure of a single-port multi-layer controller structure described in an embodiment of this application; Figure 2 is an exploded view of a single-port multi-layer controller structure described in an embodiment of this application; Figure 3 is a schematic diagram of the structure of the base described in an embodiment of this application; Figure 4 is a schematic diagram of the structure of the end cover described in an embodiment of this application; Figure 5 is a schematic diagram of the structure of the circuit board assembly and the aviation socket described in an embodiment of this application; Figure 6Schematic diagram of the upper circuit board and the aviation socket according to the embodiment of the present application; Figure 7 Schematic diagram of the support frame structure according to the embodiment of the present application.

[0013] Description of reference numerals: 1 - Base; 11 - Inner threaded pillar; 12 - Heat dissipation platform; 13 - Lug; 2 - End cover; 21 - Counterbore; 22 - Rubber ring groove; 23 - Conductive rubber strip; 3 - Circuit board assembly; 4 - Upper circuit board; 5 - Support frame; 51 - Pipe column; 52 - Positioning pin; 6 - Aviation socket; 7 - Air nozzle; 8 - Plug; 9 - Ground wire; 10 - Positioning hole. Detailed implementation manners

[0014] To make the objectives, technical solutions, and advantages of the present application clearer and more understandable, the present application will be further described in detail below with reference to specific embodiments and the accompanying drawings.

[0015] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meanings understood by those of ordinary skill in the field to which the present application belongs. The "first", "second", and similar terms used in the embodiments of the present application do not indicate any order, quantity, or importance, but are only used to distinguish different components. The terms such as "include" or "comprise" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connect" or "be connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", and "right" are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0016] Please refer to Figure 1 and Figure 2 As shown, this embodiment provides a single - port multi - layer controller structure, including a base 1, an end cover 2, a circuit board assembly 3, an upper circuit board 4, and a support frame 5; The base 1 and the end cover 2 are connected to form a closed accommodation cavity, and the circuit board assembly 3, the upper circuit board 4, and the support frame 5 are sequentially stacked and installed in the accommodation cavity, and the circuit board assembly 3 is electrically connected to the upper circuit board 4; A heat dissipation platform 12 is provided on the inner end surface of the accommodation cavity, and the circuit board assembly 3 is attached to the heat dissipation platform 12; The circuit board assembly 3 and the upper circuit board 4 are respectively connected to an aviation socket 6, and the aviation socket 6 is correspondingly installed on one side of the base 1.

[0017] Specifically, in this embodiment, taking a circuit board assembly 3 and an upper circuit board 4 as examples, a recessed accommodation cavity is provided inside the base 1. The circuit board assembly 3 and the upper circuit board 4 are respectively arranged at the upper and lower ends of the support frame 5, and then fixed inside the base 1 by fastening screws. The circuit board assembly 3 and the upper circuit board 4 are kept electrically connected. At the same time, the circuit board assembly 3 and the upper circuit board 4 are connected to the external setting through an aviation socket 6; In addition, to solve the problem of circuit board heat dissipation, heat dissipation platforms 12 are arranged at the edge positions on both sides of the accommodation cavity. The circuit board assembly 3 at the bottom is in contact with the heat dissipation platform 12. The heat dissipation platform 12 can be made of heat dissipation components with high thermal conductivity such as aluminum or copper. There is direct physical contact between the circuit board assembly 3 and the heat dissipation platform 12, which can conduct the heat generated by the circuit board to the heat dissipation platform 12, and then dissipate it to the external environment through the heat dissipation platform 12 to prevent overheating.

[0018] It should be noted that when the circuit board assembly 3 is installed, its back or specific part is in close contact with the heat dissipation platform 12, and thermal conductive glue, thermal conductive gaskets or screw fixation and other methods can be used to ensure good heat conduction.

[0019] The single-port multi-layer controller structure described in this embodiment adopts a multi-layer stacked structure, with a more reasonable structural layout. Compared with the existing controller components, the layout is more compact, the circuit board fixation reliability is higher, the internal space utilization rate of the controller can be effectively improved, and the overall structural stability of the controller is high; at the same time, the heat dissipation effect of the circuit board is ensured, the controller runs reliably, and it has the advantages of convenient maintenance and high stability.

[0020] In some embodiments, as Figure 3 shown, a plurality of internal threaded stud columns 11 are provided inside the base 1. Threaded holes are provided on both the internal threaded stud columns 11 and the heat dissipation platform 12. Light holes corresponding to the threaded holes are provided on the circuit board assembly 3, the upper circuit board 4 and the support frame 5. Fastening bolts pass through the light holes and are assembled and connected with the threaded holes to fixedly connect the circuit board assembly 3, the upper circuit board 4 and the support frame 5 to the base 1; As Figure 5 and Figure 6 shown, both the circuit board assembly 3 and the upper circuit board 4 include printed boards. The printed boards are kept electrically connected to the aviation socket 6 through flexible boards. The printed board of the circuit board assembly 3 is also connected to another aviation socket 6 through a wire to provide power supply; The two printed boards are correspondingly connected through an inter-board connection base and an inter-board connection head; The support frame 5 is a thin-walled frame member, and a plurality of pipe columns 51 are provided thereon. Light holes are provided on the pipe columns 51 for fixing it inside the base 1; The printed circuit board is provided with positioning holes 10, and the support frame 5 is provided with positioning pins 52 corresponding to the positioning holes 10 to perform positioning connection on the printed circuit board.

[0021] Specifically, in this embodiment, the base 1 is rectangular, with its lower end closed and its upper end designed to be open. A plurality of internally threaded stud columns 11 are provided at the bottom inside the base 1. The support frame 5 and the two printed circuit boards are provided with light holes corresponding to the internally threaded stud columns 11, and then the fixing connection between the structural members is realized through hex socket head cap screws.

[0022] As Figure 7 shown, the support frame 5 is a thin-walled frame member, which plays a role in supporting and isolating the circuit board assembly 3 and the upper circuit board 4. A plurality of pipe columns 51 are provided thereon, and light holes are provided inside the pipe columns 51. Avoidance notches are provided at the positions where the corners of the base 1 are fitted. Elastic positioning pins 52 are respectively provided on both sides of the support frame 5. The two sides of the elastic positioning pins 52 protrude and correspond to the positioning holes 10 provided on the printed circuit board. The protruding length of the elastic positioning pins 52 is less than the thickness of the printed circuit board to realize the quick docking of the printed circuit board and the support frame 5.

[0023] The printed circuit board of the circuit board assembly 3 is connected to the connection board through a flexible board. The connection board is provided with solder pads and is welded to the aviation socket 6; three aviation sockets 6 are adopted in this embodiment. Two of the aviation sockets 6 are respectively connected to the circuit board assembly 3 and the upper circuit board 4, and the other is connected to the circuit board assembly 3 for providing power supply. The circuit board assembly 3 and the upper circuit board 4 are electrically connected through the board-to-board connection seat and the board-to-board connection head provided thereon.

[0024] The board-to-board connection head is provided with non-removable hex socket head cap screws, pins, etc. The pins are connected to the solder pads provided on the printed circuit board, and the non-removable hex socket head cap screws are connected to the female screws of the board-to-board connection seat.

[0025] In some embodiments, a plurality of assembly holes for installing the aviation socket 6 are provided on one side wall of the base 1; A plurality of connection holes are further provided on one side wall of the base 1, and an air nozzle 7 and a plug 8 are installed in the connection holes.

[0026] Specifically, in this embodiment, a plurality of connection holes, light holes, and internally threaded holes are provided at the front end of the base 1. Among them, the connection holes and the light holes are used to connect to the aviation socket 6, and the internally threaded holes are respectively provided with the air nozzle 7 and the plug 8. The air nozzle 7 is used for the airtightness detection of the controller. Lugs 13 are provided at the four corners of the base 1, and light holes are provided on the lugs 13 for external mounting connection. An internal hexagon socket head cap screw is also provided on the side surface of the base 1, and it is connected to the ground wire 9 through a flat washer, a spring washer, and a nut.

[0027] In some embodiments, as Figure 4As shown, several counterbores 21 are provided at the edge position of the end cover 2. Through holes are provided in the counterbores 21, and they are fixedly connected to the base 1 by socket head cap screws. A rubber seal groove 22 is formed in the circumferential direction of the bottom end surface of the end cover 2, and a conductive rubber strip 23 is installed in the rubber seal groove 22.

[0028] Specifically, in this embodiment, the end cover 2 is a rectangular thin-walled part. Several counterbores 21 are provided on the periphery. Light holes are provided in the counterbores 21, and it is connected to the base 1 by socket head cap screws, flat washers and spring washers. A rubber seal groove 22 is provided on the surrounding thin wall, and a conductive rubber strip 23 is installed inside.

[0029] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

[0030] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the present application.

Claims

1. A single-port multi-layer controller structure, characterized in that: It includes a base, an end cover, a circuit board assembly, an upper circuit board and a support frame; The base is connected to the end cover to form a closed accommodating cavity, and the circuit board assembly, the upper circuit board and the support frame are sequentially stacked and installed in the accommodating cavity, and the circuit board assembly is electrically connected to the upper circuit board; A heat dissipation table is provided on the inner end surface of the accommodating cavity, and the circuit board assembly is attached to the heat dissipation table; The circuit board assembly and the upper circuit board are respectively connected with aviation sockets, and the aviation sockets are correspondingly installed on one side of the base.

2. The single-port multi-layer controller structure according to claim 1, characterized in that: A number of internal threaded stud columns are provided in the base, internal threaded holes are provided in both the internal threaded stud columns and the heat dissipation table, and light holes corresponding to the internal threaded holes are provided on the circuit board assembly, the upper circuit board and the support frame. A fastening bolt passes through the light hole and is assembled and connected with the internal threaded hole to fixedly connect the circuit board assembly, the upper circuit board and the support frame to the base; A plurality of assembly holes for installing the aviation sockets are provided on one side wall of the base.

3. The single-port multi-layer controller structure according to claim 2, characterized in that: A plurality of connection holes are further provided on one side wall of the base, and an air nozzle and a plug are installed in the connection holes.

4. The single-port multi-layer controller structure according to claim 2, characterized in that: Lugs are provided at the edge position of the base, and through holes are provided on the lugs for installation and connection with external devices; A grounding wire is also connected to the side wall of the base.

5. The single-port multi-layer controller structure according to claim 1, characterized in that: Both the circuit board assembly and the upper circuit board include printed boards, and the printed boards are electrically connected to the aviation sockets through flexible boards. The printed board of the circuit board assembly is also connected to another aviation socket through a wire to provide power supply; The two printed boards are correspondingly connected through an inter-board connection seat and an inter-board connection head.

6. The single-port multi-layer controller structure according to claim 5, characterized in that: The support frame is a thin-walled frame member, and a number of pipe columns are provided thereon. Light holes are provided on the pipe columns for fixing it in the base; Positioning holes are provided on the printed board, and positioning pins corresponding to the positioning holes are provided on the support frame to perform positioning connection on the printed board.

7. The single-port multi-layer controller structure according to claim 1, characterized in that: A number of counterbores are provided at the edge position of the end cover. Through holes are provided in the counterbores and are fixedly connected to the base through internal hexagonal screws; A rubber seal groove is provided on the circumferential surface of the bottom end surface of the end cover, and a conductive rubber strip is installed in the rubber seal groove.

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