Isolator chip assembly structure

Abstract

The utility model relates to the technical field of isolators, in particular to an isolator chip assembling structure, which comprises a PCB (printed circuit board) and an adjusting mechanism, an isolating circuit is arranged on the PCB, rectangular grooves are symmetrically arranged at the bottom of the PCB, the adjusting mechanism comprises an insulating plate, an insulating adjusting seat, an adjusting screw rod, a T-shaped insulating rod, a spring and a guide device, when the PCB is mounted, the adjusting screw rod is rotated, and the T-shaped insulating rod is fixed on the insulating plate. The T-shaped insulating rod is pushed to slide downwards and compress the spring, so that the insulating plate can be pushed out from the rectangular groove in the bottom of the PCB, the PCB cannot make contact with the inner shell, bottom welding spots are protected, the problem that no height difference exists between the inner shell and the screw hole of an existing electrical device is solved, the welding spots at the bottom of the PCB can make direct contact with the inner shell, and the service life of the electrical device is prolonged. The problems that when a PCB is fastened through a screw, the PCB is prone to exerting pressure on a welding spot, the desoldering phenomenon is caused, a circuit fault is caused, and the working stability of the isolator is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of isolator, especially to an isolator chip assembly structure. BACKGROUND

[0002] The digital isolator is a kind of chip when digital signal and analog signal are transmitted in electronic system, and it has very high resistance isolation characteristics to realize the isolation between electronic system and user. The role of isolation is to ensure that data transmission is not through electrical connection or leakage path, to avoid the use of safety risk.

[0003] At present, the existing digital isolator isolation circuit is mostly composed of multiple chip sets, capacitors, resistors and triodes, the pins of each component are fixed on the bottom of the PCB board by means of soldering, and in the actual installation process, the PCB board is usually directly fixed in the inner shell of the electrical device by screws, and there is no height difference between the inner shell and the screw hole of part of the electrical device, so that the solder joints on the bottom of the PCB board will be directly in contact with the inner shell. When the PCB board is fastened by screws, the PCB board is easy to exert pressure on the solder joints, causing the phenomenon of soldering-off, resulting in circuit failure and reducing the working stability of the isolator. SUMMARY

[0004] The utility model aims at providing an isolator chip assembly structure, which aims to solve the problem that there is no height difference between the inner shell and the screw hole of part of the existing electrical device, so that the solder joints on the bottom of the PCB board will be directly in contact with the inner shell. When the PCB board is fastened by screws, the PCB board is easy to exert pressure on the solder joints, causing the phenomenon of soldering-off, resulting in circuit failure and reducing the working stability of the isolator.

[0005] To achieve the above-mentioned purpose, the utility model provides an isolator chip assembly structure, which comprises a PCB board, the PCB board is provided with an isolation circuit, and the bottom is symmetrically provided with a rectangular groove, and further comprises an adjusting mechanism.

[0006] The adjusting mechanism comprises an insulating plate, an insulating adjusting seat, an adjusting screw, a T-shaped insulating rod, a spring and a guide device, the insulating plate can vertically slide in the rectangular groove at the bottom of the PCB board, and is symmetrically arranged, the insulating adjusting seat is symmetrically installed on the PCB board, the adjusting screw is threadedly connected with the insulating adjusting seat and penetrates through the insulating adjusting seat, the T-shaped insulating rod is threadedly connected with the insulating plate and is slidably connected with the PCB board, and is located below the adjusting screw, one end of the spring abuts against the PCB board, the other end of the spring abuts against the top disc of the T-shaped insulating rod, the spring is sleeved on the T-shaped insulating rod, and the guide device is arranged on both sides of the insulating plate.

[0007] The stepped round shaft is arranged at the head of the T-shaped insulating rod.

[0008] The T-shaped insulating rod is provided with a rectangular protrusion on each side of the top disc, and the rectangular protrusion is in sliding fit with a rectangular sliding groove on each side of the insulating adjusting seat.

[0009] The guiding device comprises a first insulating guide column and a second insulating guide column.

[0010] The guiding device comprises a first insulating guide column and a second insulating guide column.

[0011] The insulating plate is pushed out of the rectangular slot at the bottom of the PCB, so that the PCB is not in contact with the inner shell, and the bottom welding point is protected. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced.

[0013] Figure 1 is a whole structure schematic view of the isolator chip assembly structure of the first embodiment of the present application.

[0014] Figure 2 is a structure schematic view of the insulating adjusting seat of the first embodiment of the present application.

[0015] Figure 3 is a whole structure schematic view of the isolator chip assembly structure of the second embodiment of the present application.

[0016] Figure 4 is a structure schematic view of the insulating adjusting seat of the second embodiment of the present application. Figure 3 is an enlarged view of A in the second embodiment of the present application.

[0017] In the figure: 101-PCB board, 102-isolation circuit, 103-insulating plate, 104-insulating adjusting seat, 105-adjusting screw rod, 106-T-shaped insulating rod, 107-spring, 108-first insulating guide column, 109-second insulating guide column, 201-rubber pad, 202-plastic nut. DETAILED DESCRIPTION

[0018] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, the embodiments described below by referring to the accompanying drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0019] Embodiment one:

[0020] As shown in Figure 1 and Figure 2 , wherein Figure 1 is the overall structure diagram of the isolator chip assembly structure, Figure 2 is the structure diagram of the insulating adjusting seat 104, the present application provides an isolator chip assembly structure: including a PCB board 101 and an adjusting mechanism, the adjusting mechanism includes an insulating plate 103, an insulating adjusting seat 104, an adjusting screw rod 105, a T-shaped insulating rod 106, a spring 107 and a guide device, the guide device includes a first insulating guide column 108 and a second insulating guide column 109. Through the foregoing scheme, the problem that the existing part of the electric appliance device inner shell and the screw hole exist without height difference can be solved, so that the soldering point at the bottom of the PCB board 101 will be directly in contact with the inner shell, when the PCB board 101 is fastened by the screw, the PCB board 101 is easy to exert pressure on the soldering point, causing the phenomenon of soldering off, leading to circuit failure, reducing the working stability of the isolator, it can be understood that the foregoing scheme can improve the working stability of the isolator.

[0021] In the present embodiment, the PCB board 101 is provided with an isolation circuit 102, and the bottom is symmetrically provided with a rectangular groove.

[0022] The insulation plate 103 is vertically slidable in the rectangular groove at the bottom of the PCB plate 101 and is symmetrically arranged, the insulation adjusting seat 104 is symmetrically arranged on the PCB plate 101, the adjusting screw 105 is threadedly connected with the insulation adjusting seat 104 and penetrates through the insulation adjusting seat 104, the T-shaped insulation rod 106 is threadedly connected with the insulation plate 103 and is slidably connected with the PCB plate 101 and is located below the adjusting screw 105, one end of the spring 107 is abutted against the PCB plate 101, the other end of the spring 107 is abutted against the top disc of the T-shaped insulation rod 106, the spring 107 is sleeved on the T-shaped insulation rod 106, and the guide device is arranged on both sides of the insulation plate 103. The insulation plate 103 is long and rectangular, can be arranged in the rectangular groove at the bottom of the PCB plate 101 and is vertically slidable, the insulation adjusting seat 104 is fixed on the PCB plate 101 through a precision screw, a penetrating threaded hole is arranged on the insulation adjusting seat 104, the adjusting screw 105 is arranged, the bottom outer threaded end of the T-shaped insulation rod 106 can be threadedly connected with the insulation plate 103 and is vertically slidable in the through hole on the PCB plate 101, one end of the spring 107 is abutted against the PCB plate 101, the other end of the spring 107 is abutted against the top disc of the T-shaped insulation rod 106, the spring 107 is sleeved on the T-shaped insulation rod 106 during installation, and the guide device is used to improve the stability of movement of the insulation plate 103.

[0023] Secondly, the head of the adjusting screw 105 close to the T-shaped insulation rod 106 is a stepped circular shaft. The structure is used to protect the bottom outer threaded end of the adjusting screw 105.

[0024] Then, the T-shaped insulation rod 106 is symmetrically provided with a rectangular protrusion on both sides of the top disc, and the rectangular protrusion is slidably matched with the rectangular sliding groove on both sides of the insulation adjusting seat 104. The structure is used to make the T-shaped insulation rod 106 only vertically and linearly slide and not rotate, the rectangular sliding groove on both sides of the insulation adjusting seat 104 is arranged from bottom to top and is not penetrated.

[0025] Finally, the first insulation guide column 108 is integrally formed with the insulation plate 103 and is slidably connected with the PCB plate 101 and is located on one side of the insulation plate 103, and the second insulation guide column 109 is integrally formed with the insulation plate 103 and is slidably connected with the PCB plate 101 and is located on the side, away from the first insulation guide column 108, of the insulation plate 103. After the first insulation guide column 108 and the second insulation guide column 109 are arranged, the stability of movement of the insulation plate 103 can be improved, and the insulation plate 103 will not completely separate from the rectangular groove on the PCB plate 101 during sliding.

[0026] When the utility model improves the working stability of the isolator, the PCB 101 is installed, first rotate the adjusting screw 105, push the T-shaped insulating rod 106 to slide down and compress the spring 107, so that the insulating plate 103 can be pushed out of the rectangular groove at the bottom of the PCB 101, so that the PCB 101 will not contact the inner shell, the bottom solder joint is protected, after the spring 107 is released, the spring 107 pushes the T-shaped insulating rod 106 to slide up, so that the insulating plate 103 is put into the rectangular groove at the bottom of the PCB 101, and then the problem that the inner shell and the screw hole of the existing part of the electric appliance device do not have a height difference is solved, so that the solder joint at the bottom of the PCB 101 will directly contact the inner shell, when the PCB 101 is fastened by a screw, the PCB 101 is easy to apply pressure to the solder joint, causing the solder joint to be loose, causing circuit failure and reducing the working stability of the isolator.

[0027] Embodiment two:

[0028] As shown in Figure 3 and Figure 4 , wherein Figure 3 is the overall structure diagram of the isolator chip assembly structure, Figure 4 is an enlarged view of A in Figure 3 , on the basis of the first embodiment, the utility model provides a kind of isolator chip assembly structure, the isolator chip assembly structure further includes stabilizing mechanism, and the stabilizing mechanism includes rubber pad 201 and plastic nut 202.

[0029] Wherein, the rubber pad 201 is installed in the adjusting screw 105 outside, and is abutted on the top end face of the insulating adjusting seat 104;The plastic nut 202 is screwed on the adjusting screw 105, and is abutted on the rubber pad 201.The rubber pad 201 can be directly installed in the adjusting screw 105 outside, and the plastic nut 202 is directly installed on the adjusting screw 105.

[0030] In the embodiment, by setting the rubber pad 201 and the plastic nut 202, after the adjusting screw 105 is rotated, the plastic nut 202 can be tightened and abutted on the top of the rubber pad 201, so that the adjusting screw 105 can be prevented from loosening, and the stability is improved.

[0031] The above only discloses one or more preferred embodiments of the application, and cannot limit the scope of the application, and those skilled in the art can understand that all or part of the above-mentioned embodiments can be implemented, and equivalent changes made according to the claims of the application still belong to the scope covered by the application.

Claims

1. An isolator chip assembly structure, comprising a PCB board, wherein an isolation circuit is arranged on the PCB board, and a rectangular slot is symmetrically arranged at the bottom of the PCB board, characterized in that: an adjusting mechanism is further arranged.

2. The isolator chip assembly structure according to claim 1, characterized in that: the adjusting mechanism comprises an insulating plate, an insulating adjusting seat, an adjusting screw, a T-shaped insulating rod, a spring and a guide device, wherein the insulating plate is vertically slidably arranged in the rectangular slot at the bottom of the PCB board and is symmetrically arranged, the insulating adjusting seat is symmetrically arranged on the PCB board, the adjusting screw is threadedly connected with the insulating adjusting seat and penetrates through the insulating adjusting seat, the T-shaped insulating rod is threadedly connected with the insulating plate and is slidably connected with the PCB board and is located below the adjusting screw, one end of the spring is abutted against the PCB board, the other end of the spring is abutted against a top disc of the T-shaped insulating rod, the spring is sleeved on the T-shaped insulating rod, and the guide device is arranged on both sides of the insulating plate.

3. The isolator chip assembly structure according to claim 1, characterized in that: the head of the adjusting screw close to the T-shaped insulating rod is a stepped circular shaft.

4. The isolator chip assembly structure according to claim 1, characterized in that: the top disc of the T-shaped insulating rod is symmetrically provided with a rectangular protrusion on both sides, and the rectangular protrusion is slidably matched with a rectangular sliding groove on both sides of the insulating adjusting seat.

5. The isolator chip assembly structure according to claim 1, characterized in that: the guide device comprises a first insulating guide column and a second insulating guide column, wherein the first insulating guide column is integrally formed with the insulating plate, is slidably connected with the PCB board and is located on one side of the insulating plate, and the second insulating guide column is integrally formed with the insulating plate, is slidably connected with the PCB board and is located on the side of the insulating plate away from the first insulating guide column.

6. The isolator chip assembly structure according to claim 1, characterized in that: the isolator chip assembly structure further comprises a stabilizing mechanism, wherein the stabilizing mechanism comprises a rubber pad and a plastic nut, the rubber pad is sleeved and arranged on the outside of the adjusting screw and is abutted against the top end face of the insulating adjusting seat, and the plastic nut is threadedly connected with the adjusting screw and is abutted against the rubber pad. ​ ​ ​ 5. The spacer core assembly structure of claim 1, wherein : ​

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