Temperature detection structure of FPC wire row

Abstract

The utility model provides a kind of temperature detection structure of FPC wire row, it is related to FPC wire detection field.The temperature detection structure of FPC wire row, including FPC wire temperature detection module structure, the outer surface of FPC wire temperature detection module structure is provided with detection structure protection shell structure, the surface of FPC wire temperature detection module structure is connected with the inside of detection structure protection shell structure, the lower surface of FPC wire temperature detection module structure is fixedly connected with intercommunication pin structure.The temperature detection structure of FPC wire row, through the cooperation between through -hole, splicing mounting plate structure, movable slot, spring, movable block, locking structure and auxiliary connecting piece, reach can the detection structure protection shell structure and FPC wire temperature detection module structure are mutually split, so two components can be replaced, solve the current detection structure protection shell and detection module integrated design, detection module and protection shell, so as to be unable to carry out the problem of targeted replacement.

Description

Technical Field

[0001] This utility model relates to the field of FPC cable testing technology, specifically to a temperature detection structure for FPC cables. Background Technology

[0002] Flexible printed circuit boards (FPCs), also known as flexible circuit boards, are highly favored for their excellent properties such as light weight, thinness, and ability to be freely bent and folded. However, in China, FPC quality inspection still mainly relies on manual visual inspection, which is costly and inefficient. With the rapid development of the electronics industry, circuit board designs are becoming increasingly precise and high-density, and traditional manual inspection methods can no longer meet production demands. Therefore, automated defect detection for FPCs has become an inevitable trend in industry development.

[0003] Flexible printed circuits (FPCs) are a technology developed in the United States in the 1970s for the development of aerospace rocket technology. They are printed circuits with high reliability and excellent flexibility, made from polyester film or polyimide as the substrate. By embedding circuit designs into a flexible, thin, bendable plastic sheet, a large number of precision components can be packed into narrow and limited spaces, thus forming a flexible circuit. This type of circuit can be bent and folded at will, is lightweight, small in size, has good heat dissipation, and is easy to install, breaking through the limitations of traditional interconnection technologies. The components of a flexible circuit are insulating film, conductors, and adhesives. An FPC cable is a connecting wire assembly that can be bent to a certain extent. It is an industrial product, generally long and strip-shaped, with pluggable pin-like ends. FPCs can be divided into many types according to function, such as FPC antennas, FPC touch screens, and FPC capacitive screens. In simple terms, an FPC cable is a connecting wire assembly that can be bent to a certain extent. Because it is a type of FPC, its structure is the same as that of an FPC. FPCs are generally long and narrow, with pluggable pins at both ends for direct connection to connectors or soldering onto products. The middle section typically contains wiring. Because FPC cables require a certain degree of flexibility, the base material is usually rolled copper, which is resistant to bending and flexible. The surface treatment used for FPC cables is generally immersion gold, occasionally with anti-oxidation. However, anti-oxidation processes cannot withstand high temperatures and have lower environmental tolerance than immersion gold. Since both are similarly priced, immersion gold is the most common choice. Other processes include tin plating and tin spraying, but FPCs generally have a temperature resistance below 280 degrees Celsius, while tin spraying involves temperatures exceeding 300 degrees Celsius, and the solder paste has relatively low hardness, so these are rarely used. The function of an FPC cable is to connect two related components or products.

[0004] In some flexible circuits, rigid components made of aluminum or stainless steel are used. These provide dimensional stability, physical support for the placement of components and wires, and stress relief. Adhesives bond the rigid components to the flexible circuit. Another material sometimes used in flexible circuits is the adhesive sheet, which is formed by coating both sides of an insulating film with adhesive. Adhesive sheets provide environmental protection and electronic insulation, and can eliminate the need for a single film, as well as the ability to form multiple layers with fewer adhesive layers.

[0005] There are many types of insulating film materials, but the most commonly used are polyimide and polyester. Nearly 80% of all flexible circuit manufacturers in the United States use polyimide film, while about 20% use polyester film. Polyimide is non-flammable, dimensionally stable, has high tensile strength, and can withstand soldering temperatures. Polyester, also known as polyethylene terephthalate (PET), has similar physical properties to polyimide, with a lower dielectric constant and low moisture absorption, but it is not heat-resistant. Polyester has a melting point of 250°C and a glass transition temperature (Tg) of 80°C, which limits its use in applications requiring extensive end soldering. In low-temperature applications, they exhibit rigidity. Nevertheless, they are suitable for use in products such as telephones and other products that do not require exposure to harsh environments. Polyimide insulating films are typically bonded to polyimide or acrylic adhesives, while polyester insulation is generally bonded to polyester adhesives. The advantages of combining with materials possessing similar properties result in dimensional stability after dry welding or after multiple lamination cycles. Other important characteristics of the adhesive include a low dielectric constant, high insulation resistance, high glass transition temperature, and low moisture absorption.

[0006] Copper foil is suitable for use in flexible circuits. It can be electrodeposited (ED) or plated. Electrodeposited copper foil has a glossy surface on one side, while the other side has a matte finish. It is a flexible material that can be made in many thicknesses and widths. The matte side of ED copper foil is often specially treated to improve its adhesion. Forged copper foil, in addition to its flexibility, also has a hard and smooth texture, making it suitable for applications requiring dynamic flexibility.

[0007] Besides bonding insulating films to conductive materials, adhesives can also be used as cover layers, protective coatings, and overlay coatings. The main difference lies in the application method: cover layers bonded to insulating films are used to form multilayer circuits. Adhesive-based overlay coatings utilize screen printing technology. Not all multilayer structures contain adhesives; adhesive-free multilayers create thinner circuits and greater flexibility. They offer better thermal conductivity compared to adhesive-based multilayer structures. Due to the thin profile of adhesive-free flexible circuits and the improved thermal conductivity resulting from eliminating the thermal resistance of adhesives, they can be used in environments where adhesive-based flexible circuits are unsuitable. Currently, many products use ribbon cables (FPCs) because of their flexibility. FPCs are widely used in printers, mobile phones, laptops, and many other products. Current testing structures integrate the protective shell and testing module, making targeted replacement impossible. Utility Model Content

[0008] The purpose of this invention is to provide a temperature detection structure for FPC busbars, which solves the problem of current detection structures where the protective shell and detection module are integrated, making it impossible to replace the detection module and the protective shell separately.

[0009] Technical solution To achieve the above objectives, this utility model provides the following technical solution: a temperature detection structure for an FPC cable, comprising an FPC cable temperature detection module structure, wherein a protective shell structure for the detection structure is provided on the outer surface of the FPC cable temperature detection module structure, the surface of the FPC cable temperature detection module structure is snapped into the interior of the protective shell structure, a connecting pin structure is fixedly connected to the lower surface of the FPC cable temperature detection module structure, a splicing mounting plate structure is overlapped at the bottom of the protective shell structure, a through hole is opened on the upper surface of the splicing mounting plate structure and communicates with the lower surface, one end of the connecting pin structure away from the FPC cable temperature detection module structure passes through the through hole and extends to the bottom of the splicing mounting plate structure, an auxiliary connector is fixedly connected to the left side of the protective shell structure, the auxiliary connector is overlapped on the left side of the splicing mounting plate structure, a movable groove is opened on the lower surface of the splicing mounting plate structure, a movable block is movably connected inside the movable groove, a locking structure is fixedly connected to the lower surface of the movable block, and the inner wall of the locking structure is snapped into the surface of the auxiliary connector.

[0010] Furthermore, a spring is fixedly connected to the left side of the movable block, and the left end of the spring is fixedly connected to the left inner wall of the movable groove.

[0011] Furthermore, there are two auxiliary connectors, which are symmetrically arranged around the central axis of the splicing and mounting plate structure.

[0012] Furthermore, there are two locking structures, symmetrically arranged around the central axis of the splicing mounting plate structure. Pulling the locking structure outward separates it from the surface of the auxiliary connector. Then, pulling the detection structure protective shell upward separates it from the surface of the FPC cable temperature detection module structure. Pulling the FPC cable temperature detection module structure upward causes the connecting pin structure to move out through the through hole. After replacing either the detection structure protective shell structure or the FPC cable temperature detection module structure, they are combined. Finally, the locking structure is released, and the spring pushes the movable block to reset. The movable block causes the locking structure to lock onto the edge of the auxiliary connector, fixing the detection structure protective shell structure and the FPC cable temperature detection module structure.

[0013] This invention provides a temperature detection structure for FPC busbars. It has the following advantages: The temperature detection structure of this FPC cable strip, through the cooperation of through holes, splicing mounting plate structure, movable groove, spring, movable block, locking structure and auxiliary connectors, allows the detection structure protective shell structure and FPC cable temperature detection module structure to be separated, so that the two components can be replaced separately. This solves the problem of the current integrated design of the detection structure protective shell and detection module, which makes it impossible to replace the detection module and protective shell separately. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of the local structure at point A in the middle.

[0015] The components include: 1. FPC cable temperature detection module structure; 2. splicing mounting plate structure; 3. through hole; 4. connecting pin structure; 5. detection structure protective shell structure; 6. movable slot; 7. spring; 8. movable block; 9. locking structure; and 10. auxiliary connectors. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] like Figure 1-2 As shown, this utility model embodiment provides a temperature detection structure for an FPC cable, including an FPC cable temperature detection module structure 1, and a detection structure protective shell structure 5 is provided on the outer surface of the FPC cable temperature detection module structure 1.

[0020] In the first embodiment of this utility model, the surface of the FPC cable temperature detection module structure 1 is snapped into the interior of the detection structure protective shell structure 5. A connecting pin structure 4 is fixedly connected to the lower surface of the FPC cable temperature detection module structure 1. A splicing mounting plate structure 2 is overlapped at the bottom of the detection structure protective shell structure 5. A through hole 3 communicating with the lower surface is opened on the upper surface of the splicing mounting plate structure 2. The end of the connecting pin structure 4 away from the FPC cable temperature detection module structure 1 passes through the through hole 3 and extends to the bottom of the splicing mounting plate structure 2. An auxiliary connector 10 is fixedly connected to the left side of the detection structure protective shell structure 5. There are two auxiliary connectors 10, which are symmetrically arranged about the central axis of the splicing mounting plate structure 2. The auxiliary connectors 10 are located on the left side of the splicing mounting plate structure 2 and overlap.

[0021] In the second embodiment of this utility model, a movable groove 6 is provided on the lower surface of the splicing installation plate structure 2. A movable block 8 is movably connected inside the movable groove 6. A spring 7 is fixedly connected to the left side of the movable block 8. The left end of the spring 7 is fixedly connected to the left inner wall of the movable groove 6. A locking structure 9 is fixedly connected to the lower surface of the movable block 8. There are two locking structures 9, which are symmetrically arranged about the central axis of the splicing installation plate structure 2. The inner wall of the locking structure 9 is engaged with the surface of the auxiliary connector 10.

[0022] Working principle: Pull the locking structure 9 outward to separate the locking structure 9 from the surface of the auxiliary connector 10. Then pull the detection structure protective shell structure 5 upward to separate the detection structure protective shell structure 5 from the surface of the FPC cable temperature detection module structure 1. Then pull the FPC cable temperature detection module structure 1 upward to move the connecting pin structure 4 out through the through hole 3. Replace the detection structure protective shell structure 5 or the FPC cable temperature detection module structure 1 and combine the two. Finally, release the locking structure 9. At this time, the spring 7 will push the movable block 8 to reset. The movable block 8 will cause the locking structure 9 to lock onto the edge of the auxiliary connector 10 to fix the detection structure protective shell structure 5 and the FPC cable temperature detection module structure 1.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature detection structure of FPC wire harness, comprising an FPC wire harness temperature detection module structure (1), characterized in that: The outer surface of the FPC cable temperature detection module structure (1) is provided with a detection structure protective shell structure (5). The surface of the FPC cable temperature detection module structure (1) is snapped into the inside of the detection structure protective shell structure (5). The lower surface of the FPC cable temperature detection module structure (1) is fixedly connected with a connecting pin structure (4). The bottom of the detection structure protective shell structure (5) is overlapped with a splicing mounting plate structure (2). The upper surface of the splicing mounting plate structure (2) is provided with a through hole (3) that communicates with the lower surface. The left side of the detection structure protective shell structure (5) is fixedly connected with an auxiliary connector (10). The auxiliary connector (10) is located on the left side of the splicing mounting plate structure (2). The lower surface of the splicing mounting plate structure (2) is provided with a movable groove (6). The movable groove (6) is movably connected with a movable block (8).

2. The temperature detection structure of the FPC wire harness according to claim 1, wherein: A spring (7) is fixedly connected to the left side of the movable block (8), and the left end of the spring (7) is fixedly connected to the left inner wall of the movable groove (6).

3. The temperature detection structure of the FPC wire harness according to claim 1, characterized in that: The number of auxiliary connectors (10) is two, and the two auxiliary connectors (10) are symmetrically arranged about the central axis of the splicing mounting plate structure (2).

4. The temperature detection structure of the FPC wire harness according to claim 1, characterized in that: The lower surface of the movable block (8) is fixedly connected to a locking structure (9), and the inner wall of the locking structure (9) is engaged with the surface of the auxiliary connector (10).

5. The temperature detection structure of the FPC wire harness according to claim 4, characterized in that: The number of locking structures (9) is two, and the two locking structures (9) are symmetrically arranged about the central axis of the splicing mounting plate structure (2).

6. The temperature detection structure for an FPC busbar according to claim 1, characterized in that: The end of the connecting pin structure (4) away from the FPC cable temperature detection module structure (1) passes through the through hole (3) and extends to the bottom of the splicing mounting plate structure (2).

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