A plug-in controller

Abstract

The present invention provides a plug-in controller, the controller includes a box body, a motherboard assembly is arranged in the box body, the box body is divided into a number of chambers by a partition plate, a number of positioning strips are fixed on the inner wall of the box body, the positioning strips cooperate with the partition plate to form a positioning space, a plug-in board or a cold plug-in board is plugged into the positioning space, a tensioner is arranged on one side wall of the plug-in board or the cold plug-in board, the tensioner is used to tighten the plug-in board or the cold plug-in board into the positioning space, so that the plug-in board or the cold plug-in board maintains electrical connection with the motherboard assembly. The plug-in controller described in the present invention adopts an integrated modular design concept, the plug-in board or the cold plug-in board has relatively independent functions and can be reused, when reused, the rectangular sockets on the motherboard are arranged in the same position along the longitudinal direction of the sockets; the compactness and maintenance convenience of the controller are greatly improved, and at the same time, the board-level vibration resistance of the controller is greatly improved, which is suitable for mass production.

Description

Technical Field

[0001] The invention belongs to the technical field of diesel engine controller manufacturing, and in particular relates to a plug-in controller. Background Art

[0002] With the development of diesel engine digital technology, the control and monitoring functions are increasing, the controller structure is becoming more and more complex, and the requirements for structural compactness are becoming higher and higher. The controller needs to arrange more hardware circuits in a limited space. However, the controller of the existing technology adopts a single-board or double-board non-modular structure design, and the integration is relatively low, which cannot accommodate more hardware circuits.

[0003] In addition, the non-modular hardware circuit structure has relatively poor maintainability. When disassembling and inspecting, it needs to be completely disassembled or replaced, which is costly. Therefore, this patent application designs a plug-in controller. Summary of the invention

[0004] In view of this, the present invention aims to provide a plug-in controller to solve the problem that the current controller has a low integration level, resulting in low internal space utilization of the controller and inconvenient disassembly and inspection.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A plug-in controller comprises a box body, a motherboard assembly is arranged in the box body, the box body is divided into a plurality of chambers by partitions, a plurality of clamping strips are fixed on the inner wall of the box body, the clamping strips cooperate with the partitions to form a clamping space, a plug-in board or a cold plug-in board is plugged into the clamping space, a tensioner is arranged on one side wall of the plug-in board or the cold plug-in board, the tensioner is used to tighten the plug-in board or the cold plug-in board into the clamping space so that the plug-in board or the cold plug-in board maintains electrical connection with the motherboard assembly.

[0007] Furthermore, the motherboard assembly includes a motherboard and a plurality of sockets arranged on the motherboard, and limit blocks are fixedly arranged on the inner walls at the four corners of the box body, and the motherboard is fixedly connected to the limit blocks by screws;

[0008] A plurality of sockets are arranged in a longitudinally staggered manner, both ends of the motherboard are connected with electrical connectors, and through holes corresponding to the electrical connectors are arranged on the side walls of the box body, and the electrical connectors are assembled into the through holes.

[0009] Furthermore, the partition is fixedly arranged on the motherboard, and both side walls of the partition are provided with clamping grooves, and the gap reserved between two adjacent clamping strips cooperates with the clamping grooves to form a clamping space.

[0010] Furthermore, there are multiple plug boards, each of which includes a circuit board. A plug is provided at the bottom of the circuit board. The plug is correspondingly connected to a socket provided on the motherboard. The tensioners are correspondingly arranged on both sides of each circuit board.

[0011] Furthermore, the number of the cold plug plates is also multiple, each cold plug plate includes a cold plate and a narrow circuit board, the cold plate is provided with a rivet nut or a stretched threaded convex edge, the narrow circuit board is fixedly connected to the cold plate by screws, and the bottom end of the narrow circuit board is provided with a plug 2 corresponding to the socket, and the tensioner is also correspondingly arranged on both sides of each cold plate.

[0012] Further, the tensioner is a wedge-shaped structure, and the tensioner includes a double-wedge fixing block, an upper wedge block, a lower wedge block and a tensioning screw. Both end faces of the double-wedge fixing block are set as wedge-shaped surfaces. The double-wedge fixing block is fixed to the cold plate by a countersunk screw. One end face of the upper wedge block and the lower wedge block is also set as a wedge-shaped surface. One end of the wedge surface of the upper wedge block and the lower wedge block is fitted with the wedge surface of the double-wedge fixing block. A window is provided at the central position of the double-wedge fixing block. Both ends of the double-wedge fixing block are respectively provided with inner holes connected to the window, and the tensioning screw is correspondingly arranged in the through hole.

[0013] The upper wedge block is provided with a through hole corresponding to the inner hole, and the lower wedge block is provided with an internal threaded hole corresponding to the inner hole. The tensioning screw passes through the upper wedge block and the double wedge fixing block in sequence and is threadedly connected with the lower wedge block.

[0014] Furthermore, it also includes a clamping plate, a double wedge-shaped fixing block and the clamping plate clamping the circuit board through countersunk screws, so that the tensioner is fixed on the circuit board.

[0015] Furthermore, the width of the positioning groove is equal to the width of the gap reserved between two adjacent positioning strips, and is greater than the thickness of the tensioner plus the clamping plate.

[0016] Furthermore, the width of the positioning groove is equal to the width of the gap reserved between two adjacent positioning strips, and is greater than the thickness of the tensioner plus the plug plate.

[0017] Furthermore, a sealing groove is provided on the top of the box body, the sealing groove is annular, a rubber strip is provided in the sealing groove, a top cover is provided on the top of the box body, a step is fixedly provided on the bottom edge of the box body, an annular sealing groove is provided at the bottom end of the step, a rubber strip is provided in the annular sealing groove, and a bottom cover is provided at the bottom end of the box body.

[0018] Compared with the prior art, the plug-in controller described in the present invention has the following beneficial effects:

[0019] (1) The plug-in controller described in the present invention adopts an integrated modular design concept. The plug-in board or cold plug-in board has relatively independent functions and can be reused. When reused, the rectangular sockets on the motherboard are arranged in the same position along the longitudinal direction of the sockets. The internal space utilization rate of the controller is high, which greatly improves the compactness and maintenance convenience of the controller. At the same time, the board-level vibration resistance of the controller is greatly improved, which is suitable for mass production.

[0020] (2) The wedge-shaped tensioner in the plug-in controller described in the present invention greatly improves the reliability of circuit board fixation and the convenience of connection, and the circuit board is easy to assemble and replace, and has good maintenance performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a plug-in controller according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the box body according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic structural diagram of a motherboard assembly according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the first angle and second angle structure of the plug board according to an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the first angle and second angle structure of the cold plug plate according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the tensioner structure according to an embodiment of the present invention;

[0028] Figure 7 An exploded view of the tensioner structure according to an embodiment of the present invention;

[0029] Figure 8 This is a schematic diagram of the free state structure of the tensioner according to an embodiment of the present invention;

[0030] Fig. 9 It is a schematic diagram of the tensioner in a tensioned state according to an embodiment of the present invention;

[0031] Fig.10 It is a schematic diagram of the structure of the double wedge fixing block according to an embodiment of the present invention.

[0032] Description of reference numerals:

[0033] 1. Controller; 11. Box body; 12. Step; 13. Top cover; 14. Bottom cover; 2. Partition; 21. Positioning slot; 3. Positioning strip; 4. Motherboard assembly; 41. Motherboard; 42. Socket; 43. Electrical connector; 5. Plug board; 51. Circuit board; 52. Plug one; 6. Cold plug board; 61. Cold board; 62. Narrow circuit board; 63. Plug two; 7. Tensioner; 71. Double wedge fixing block; 72. Upper wedge block; 73. Lower wedge block; 74. Tension screw; 75. Window; 76. Inner hole; 77. Clamp; 78. Countersunk screw. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0035] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0037] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0038] See also Figure 1 , Figure 3 and Figure 6As shown, a plug-in controller, the controller 1 includes a box body 11, a motherboard assembly 4 is arranged in the box body 11, the box body 11 is divided into a plurality of chambers by a partition 2, a plurality of clamping strips 3 are fixed on the inner wall of the box body 11, the clamping strips 3 cooperate with the partition 2 to form a clamping space, a plug-in board 5 or a cold plug-in board 6 is plugged in the clamping space, a tensioner 7 is arranged on one side wall of the plug-in board 5 or the cold plug-in board 6, the tensioner 7 is used to tighten the plug-in board 5 or the cold plug-in board 6 into the clamping space, so that the plug-in board 5 or the cold plug-in board 5 maintains electrical connection with the motherboard assembly 4.

[0039] like Figure 2 As shown, the motherboard assembly 4 includes a motherboard 41 and a plurality of sockets 42 arranged on the motherboard 41. Limit blocks are fixedly arranged on the inner wall at the four corners of the box body 11. The main body of the motherboard 41 is a printed circuit board. The motherboard 41 is fixedly connected to the limit blocks by screws. The limit blocks are not shown in the drawings. The limit blocks can fix the motherboard 41. The setting position can be arranged according to the actual situation.

[0040] A plurality of sockets 42 are arranged in a longitudinally staggered manner to prevent errors. Both ends of the motherboard 41 are connected to electrical connectors 43. The side walls of the box body 11 are provided with through holes corresponding to the electrical connectors 43, and the electrical connectors 43 are assembled into the through holes.

[0041] like Figure 3 As shown, the partition 2 is fixed on the motherboard 41 by screws, which can realize the flexible and detachable separation of the partition 2 and the motherboard 41. The two side walls of the partition 2 are provided with a locking groove 21, and the gap reserved between two adjacent locking strips 3 cooperates with the locking groove 21 to form a locking space.

[0042] like Figure 4 As shown, there are multiple plug boards 5, each of which includes a circuit board 51. A plug 52 is provided at the bottom of the circuit board 51. The plug 52 is correspondingly plugged into the socket 42 provided on the motherboard 41, and the tensioners 7 are correspondingly arranged on both sides of each circuit board 51.

[0043] like Figure 5 As shown, the number of the cold plug plates 6 is also multiple, and each cold plug plate 6 includes a cold plate 61 and a narrow circuit board 62. The cold plate 61 is made of metal, usually a copper plate or an aluminum plate. A rivet nut or a stretched threaded convex edge is provided on the cold plate 61. The narrow circuit board 62 is fixedly connected to the cold plate 61 by screws. The bottom end of the narrow circuit board 62 is provided with a plug 63 corresponding to the socket 42, and the tensioner 7 is also correspondingly arranged on both sides of each cold plate 61.

[0044] The rectangular sockets 42 provided on the motherboard 41 are arranged relatively along the longitudinal direction of the sockets 42, corresponding to the rectangular plugs on the plug board 5 or the cold plug board 65, and the relative arrangement position difference of the circuit board 51 or the narrow circuit board 62, so as to realize the anti-misplugging function of the plug board 5 or the cold plug board 65. This arrangement greatly improves the compactness and maintenance convenience of the controller 1, and at the same time greatly improves the board-level vibration resistance of the controller 1, which is suitable for mass production.

[0045] like Figure 6 and Figure 7 As shown, the tensioner 7 is a wedge-shaped structure, and the tensioner 7 includes a double wedge fixing block 71, an upper wedge block 72, a lower wedge block 73 and a tensioning screw 74. The end faces of both ends of the double wedge fixing block 71 are both wedge-shaped, and the double wedge fixing block 71 is fixed to the cold plate 61 by a countersunk screw 78. The end faces of one end of the upper wedge block 72 and the lower wedge block 73 are also wedge-shaped, and one end of the wedge surface of the upper wedge block 72 and the lower wedge block 73 is in contact with the wedge surface of the double wedge fixing block 71. A rectangular window 75 is provided at the central position of the double wedge fixing block, and inner holes 76 communicating with the rectangular window 75 are provided at both ends of the double wedge fixing block, and the tensioning screw 74 is correspondingly arranged in the through hole;

[0046] The upper wedge block 72 is provided with a through hole corresponding to the inner hole 76, and the lower wedge block 73 is provided with an internal threaded hole corresponding to the inner hole 76. The tensioning screw 74 passes through the upper wedge block 72 and the double wedge fixing block 71 in sequence and is threadedly connected with the lower wedge block.

[0047] It also includes a clamping plate 77 . The double wedge-shaped fixing block and the clamping plate 77 clamp the circuit board 51 through countersunk screws 78 so that the tensioner 7 is fixed on the circuit board 51 .

[0048] The width of the positioning groove 21 is equal to the width of the gap reserved between two adjacent positioning strips 3 , and is greater than the thickness of the tensioner 7 plus the clamping plate 77 .

[0049] The width of the locking groove 21 is equal to the width of the gap reserved between two adjacent locking strips 3 , and is larger than the thickness of the tensioner 7 plus the inserting plate 5 .

[0050] When the wedge tensioner 7 is inserted into the positioning slot 21, the upper wedge block 72 and the lower wedge block 73 slide along the wedge surface of the double wedge fixing block 71 by rotating and tightening the tensioning screw 74, and the distance between the contact surface between the double wedge fixing block 71 and the circuit board 51 or the cold plate 61 and the tensioning surface between the upper wedge block 72 and the lower wedge block 73 increases by ΔH, thereby firmly fixing the circuit board 51 or the cold plate 61 into the controller 1.

[0051] like Fig.10As shown, wedge-shaped surfaces are provided at both ends of the double wedge fixing block 71 for the upper wedge block 72 and the lower wedge block 73 to slide together, and an inner hole 76 is provided in the middle for the tensioning screw 74 to translate in the vertical direction when the upper wedge block 72 and the lower wedge block 73 slide, which provides a placement space for the tensioning screw 74 and also provides an installation space for the countersunk screw 78. A rectangular window 75 is provided in the middle section for easy observation of the extended length of the countersunk screw 78 and also for weight reduction. The double wedge fixing block 71 is provided with an internal threaded hole for the countersunk screw 78 to connect.

[0052] like Figure 8 As shown, the wedge-shaped tensioner 7 is in a free state, with a thickness of H, and Fig. 9 As shown, the wedge-shaped tensioner 7 is in a tensioned state, and its thickness is H'; the thickness in the tensioned state increases by ΔH compared to the free state, ΔH is determined by the width of the positioning slot 21 in the controller 1, and H' is between H'Max and H, and H'Max and H are determined by product design.

[0053] A sealing groove is provided on the top of the box body 11, and the sealing groove is annularly arranged. A rubber strip is arranged in the sealing groove. A top cover 13 is provided on the top of the box body 11. A step 12 is fixedly arranged on the bottom edge of the box body 11. An annular sealing groove is provided at the bottom of the step 12. A rubber strip is arranged in the annular sealing groove. A bottom cover 14 is provided at the bottom of the box body 11. By respectively arranging sealing grooves on the top and bottom of the box body 11 and arranging rubber strips in the sealing grooves, the top cover 13, the bottom cover 14 and the box body 11 are sealed and installed, thereby improving the sealing effect of the controller 1.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A plug-in controller, characterized in that: The controller (1) comprises a box body (11), a motherboard assembly (4) is arranged in the box body (11), the box body (11) is divided into a plurality of chambers by a partition (2) arranged in the box body (11), a plurality of locking strips (3) are fixedly arranged on the inner wall of the box body (11), the locking strips (3) cooperate with the partition (2) to form a locking space, a plug-in board (5) or a cold plug-in board (6) is inserted into the locking space, a tensioner (7) is arranged on one side wall of the plug-in board (5) or the cold plug-in board (6), and the tensioner (7) is used to tighten the plug-in board (5) or the cold plug-in board (6) into the locking space so that the plug-in board (5) or the cold plug-in board (6) maintains electrical connection with the motherboard assembly (4); The tensioner (7) is a wedge-shaped structure, comprising a double-wedge fixing block (71), an upper wedge block (72), a lower wedge block (73) and a tensioning screw (74). Both end surfaces of the double-wedge fixing block (71) are wedge-shaped surfaces. The double-wedge fixing block (71) is fixed to the cold plate (61) by a countersunk screw (78). One end surface of the upper wedge block (72) and the lower wedge block (73) is also wedge-shaped. One end of the wedge surface of the upper wedge block (72) and the lower wedge block (73) is in contact with the wedge surface of the double-wedge fixing block (71). A window (75) is provided at the central position of the double-wedge fixing block. Both ends of the double-wedge fixing block are provided with inner holes (76) connected to the window (75). The tensioning screw (74) is correspondingly arranged in the through hole. The upper wedge block (72) is provided with a through hole corresponding to the inner hole (76), and the lower wedge block (73) is provided with an internal threaded hole corresponding to the inner hole (76). The tensioning screw (74) passes through the upper wedge block (72) and the double wedge fixing block (71) in sequence and is threadedly connected to the lower wedge block.

2. A plug-in controller according to claim 1, characterized in that: The motherboard assembly (4) comprises a motherboard (41) and a plurality of sockets (42) arranged on the motherboard (41); limit blocks are fixedly arranged on the inner walls at the four corners of the box body (11); the motherboard (41) is fixedly connected to the limit blocks by screws; A plurality of sockets (42) are arranged in a longitudinally staggered manner, both ends of the motherboard (41) are connected with electrical connectors (43), a through hole corresponding to the electrical connector (43) is provided on the side wall of the box body (11), and the electrical connector (43) is assembled into the through hole.

3. A plug-in controller according to claim 2, characterized in that: The partition (2) is fixedly arranged on the motherboard (41), and both side walls of the partition (2) are provided with a clamping groove (21), and the gap reserved between two adjacent clamping strips (3) cooperates with the clamping groove (21) to form a clamping space.

4. A plug-in controller according to claim 2, characterized in that: There are a plurality of plug boards (5), each of which comprises a circuit board (51). A plug one (52) is provided at the bottom of the circuit board (51). The plug one (52) is correspondingly plugged into a socket (42) provided on the motherboard (41). The tensioners (7) are correspondingly arranged on both sides of each circuit board (51).

5. A plug-in controller according to claim 4, characterized in that: The number of the cold plug plates (6) is also multiple, and each cold plug plate (6) includes a cold plate (61) and a narrow circuit board (62). The cold plate (61) is provided with a rivet nut or a stretched threaded convex edge, and the narrow circuit board (62) is fixedly connected to the cold plate (61) by screws. The bottom end of the narrow circuit board (62) is provided with a plug 2 (63) corresponding to the socket (42), and the tensioner (7) is also correspondingly arranged on both sides of each cold plate (61).

6. The plug-in controller according to claim 1, characterized in that: It also includes a clamping plate (77). The double wedge-shaped fixing block and the clamping plate (77) clamp the circuit board (51) through countersunk screws (78) so that the tensioner (7) is fixed on the circuit board (51).

7. A plug-in controller according to claim 6, characterized in that: The width of the clamping groove (21) is equal to the width of the gap reserved between two adjacent clamping strips (3), and is greater than the thickness of the tensioner (7) plus the clamping plate (77).

8. The plug-in controller according to claim 1, characterized in that: The width of the positioning groove (21) is equal to the width of the gap reserved between two adjacent positioning strips (3), and is greater than the thickness of the tensioner (7) plus the inserting plate (5).

9. The plug-in controller according to claim 1, characterized in that: A sealing groove is provided at the top of the box body (11), the sealing groove is annular, a rubber strip is provided in the sealing groove, a top cover (13) is provided at the top of the box body (11), a step (12) is fixedly provided at the bottom edge of the box body (11), an annular sealing groove is provided at the bottom end of the step (12), a rubber strip is provided in the annular sealing groove, and a bottom cover (14) is provided at the bottom end of the box body (11).

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