Connecting flat cable structure and circuit board connecting flat cable assembly

Abstract

The utility model discloses a connecting flat cable structure and a circuit board connecting flat cable assembly, the connecting flat cable structure comprises a flat cable assembly, a first flat cable socket and a second flat cable socket, the first flat cable socket and the second flat cable socket are connected at two ends of the flat cable assembly, the flat cable assembly comprises a flexible flat cable thin conductor and a flexible flat cable thick conductor, and under the same conductive condition, the first flat cable socket and the second flat cable socket are connected. The current value allowed to pass through the thick flexible flat cable conductor is larger than the current value allowed to pass through the thin flexible flat cable conductor, and the two ends of the thin flexible flat cable conductor are connected with the signal female terminal of the first flat cable socket and the signal male terminal of the second flat cable socket respectively. And two ends of the flexible flat cable thick conductor are respectively connected with the large-current female terminal of the first flat cable socket and the large-current male terminal of the second flat cable socket. The connecting flat cable structure provided by the utility model can simultaneously satisfy signal transmission and heavy current transmission, is good in functionality and wide in application scene, and optimizes the circuit layout.

Description

Technical Field

[0001] The utility model relates to the technical field of cable transmission equipment, in particular to a cable connection structure and a circuit board cable connection component. Background Art

[0002] Flexible circuit boards, also known as "soft boards", are printed circuits made of flexible insulating substrates. Flexible circuits provide excellent electrical properties, can meet the design needs of smaller and higher density installations, and also help reduce assembly processes and enhance reliability.

[0003] In the related art, the connecting cables of flexible circuit boards are usually only capable of transmitting signals with small currents, have single functions, and are applicable in limited scenarios. For example, for certain working conditions that require large current transmission, a separate current transmission system needs to be laid out, which increases the complexity of the circuit layout. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] The technical solution of the utility model provides a connecting cable structure, which includes a soft flat cable thin conductor and a soft flat cable thick conductor. The two ends of the soft flat cable thin conductor are respectively connected to the signal female terminal of the first cable socket and the signal male terminal of the second cable socket, and the two ends of the soft flat cable thick conductor are respectively connected to the high-current female terminal of the first cable socket and the high-current male terminal of the second cable socket. Therefore, the connecting cable of the present application can simultaneously perform signal transmission and high-current transmission, has good functionality, wide application scenarios, and optimizes circuit layout.

[0006] The embodiment of the utility model further provides a circuit board connecting cable assembly.

[0007] The connecting cable structure of the embodiment of the utility model includes a cable assembly and a first cable socket and a second cable socket respectively located at two ends of the cable assembly; the cable assembly includes a soft cable thin conductor and a soft cable thick conductor. Under the same conductive condition, the current value allowed to pass through the soft cable thick conductor is greater than the current value allowed to pass through the soft cable thin conductor. The two ends of the soft cable thin conductor are respectively connected to the signal female terminal of the first cable socket and the signal male terminal of the second cable socket, and the two ends of the soft cable thick conductor are respectively connected to the high-current female terminal of the first cable socket and the high-current male terminal of the second cable socket.

[0008] The connecting cable structure of the embodiment of the utility model comprises a cable assembly including a soft cable thin conductor connected between a signal female terminal of a first cable socket and a signal male terminal of a second cable socket, and a soft cable thick conductor connected between a high current female terminal of the first cable socket and a high current male terminal of the second cable socket, so that the soft cable thin conductor is used for small current signal transmission, and the soft cable thick conductor is used for large current transmission. That is, the connecting cable of the present application can simultaneously perform signal transmission and large current transmission, has good functionality, wide application scenarios, and optimizes circuit layout.

[0009] In some embodiments, the thick conductor of the flexible flat cable is made of copper or aluminum.

[0010] In some embodiments, the connecting cable structure further includes a fixing plate, the fixing plate is connected between the first cable socket and the second cable socket, and the thin conductor of the flexible cable and the thick conductor of the flexible cable are routed along one side of the fixing plate.

[0011] In some embodiments, there are multiple thin conductors of the flexible flat cable, and the multiple thin conductors of the flexible flat cable are laid in parallel on one side of the fixed plate to define a signal flexible flat cable group. There are two thick conductors of the flexible flat cable and they are located on both sides of the signal flexible flat cable group along the arrangement direction of the thin conductors of the flexible flat cable.

[0012] In some embodiments, the first cable socket and / or the second cable socket is a line-to-line cable socket, the line-to-line cable socket is provided with a wire-through hole, and the connection end of the flexible cable thin conductor connected to the line-to-line cable socket is provided with a connection portion adapted to the wire-through hole;

[0013] Alternatively, the first cable socket and / or the second cable socket is a wire-to-board cable socket, the wire-to-board cable socket has a plurality of conductive sheets, and the connection end between the flexible cable thin conductor and the wire-to-board cable socket is flat.

[0014] In some embodiments, the fixing plate includes a main body and a reinforcement plate, the reinforcement plate is arranged on one end of the main body facing the wire-to-board wiring socket, the wire-to-board wiring socket has an insertion interface, and the insertion interface is provided with a plurality of conductive sheets arranged in the arrangement direction of the soft flat cable thin conductors, the reinforcement plate has a convex portion that cooperates with the insertion interface, and the convex portion has a wire groove corresponding to the plurality of the conductive sheets one by one, and the plurality of the wire grooves are corresponding to the plurality of the soft flat cable thin conductors.

[0015] In some embodiments, the plurality of wire grooves include a middle guide groove located in the middle part in the arrangement direction thereof and outer guide grooves arranged on both sides of the middle guide groove, the middle guide groove extends along the length direction of the soft flat cable thin conductor and extends into the plug interface, the outer guide groove includes a first straight groove section, a transverse groove section and a second straight groove section, the first straight groove section extends into the plug interface, the second straight groove section is connected to the main body, the transverse groove section is connected between the first straight groove section and the second straight groove section and extends along the arrangement direction of the plurality of soft flat cable thin conductors, and the plurality of first straight groove sections are arranged at intervals along the arrangement direction of the plurality of conductive sheets, the plurality of second straight groove sections are arranged at intervals along the arrangement direction of the plurality of soft flat cable thin conductors, and the plurality of transverse groove sections are arranged at intervals along the direction away from the wire-to-board wiring socket.

[0016] In some embodiments, the reinforcement plate is further provided with a thick conductor bushing, and the thick conductor bushing is used to compress the thick conductor of the flexible flat cable and to be screwed to an external terminal.

[0017] In some embodiments, the thick conductor of the flexible flat cable includes a plurality of conductor segments arranged in sequence, and two adjacent conductor segments are connected by a multi-layer conductive foil.

[0018] The circuit board connecting cable assembly of the embodiment of the utility model comprises a circuit board and the connecting cable structure described in the above embodiment.

[0019] The circuit board connecting cable assembly of the embodiment of the utility model adopts the above-mentioned connecting cable structure, and the cable assembly includes a soft flat cable thin conductor connected between the signal female terminal of the first cable socket and the signal male terminal of the second cable socket, and a soft flat cable thick conductor connected between the high-current female terminal of the first cable socket and the high-current male terminal of the second cable socket, so that the soft flat cable thin conductor is used for small current signal transmission, and the soft flat cable thick conductor is used for large current transmission. That is, the connecting cable of the present application can simultaneously perform signal transmission and large current transmission, has good functionality, wide application scenarios, and optimizes circuit layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of a circuit board connecting cable assembly according to an embodiment of the utility model.

[0021] Figure 2 It is a structural schematic diagram of a first cable socket connected to a cable assembly according to an embodiment of the utility model.

[0022] Figure 3 It is a schematic diagram of the cooperation between the flat cable assembly and the second flat cable socket of the connecting flat cable assembly according to an embodiment of the utility model.

[0023] Figure 4It is a schematic diagram of the cooperation between the flat cable assembly and the first flat cable socket of the connecting flat cable assembly according to an embodiment of the utility model.

[0024] Figure 5 It is a structural schematic diagram of a thick conductor of a flexible flat cable of a connecting flat cable assembly according to another embodiment of the utility model.

[0025] Reference numerals:

[0026] Cable assembly 1, flexible cable thin conductor 11, flexible cable thick conductor 12, conductor segment 121, conductive foil 122, first cable socket 2, conductive sheet 21, second cable socket 3, circuit board 4, fixing plate 5, body 51, reinforcing plate 52, protrusion 521, bushing 522, plug shell 6. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but cannot be understood as limiting the present invention.

[0028] like Figure 1-Figure 5 As shown, the connecting cable structure of the utility model includes a cable assembly 1 and a first cable socket 2 and a second cable socket 3 respectively located at two ends of the cable assembly 1. The cable assembly 1 includes a soft cable thin conductor 11 and a soft cable thick conductor 12. Under the same conductive condition, when current passes through the soft cable thin conductor 11 and the soft cable thick conductor 12 at the same time, the current value allowed to pass through the soft cable thick conductor 12 is greater than the current value allowed to pass through the soft cable thin conductor 11. The two ends of the soft cable thin conductor 11 are respectively connected to the signal female terminal of the first cable socket 2 and the signal male terminal of the second cable socket 3, and the two ends of the soft cable thick conductor 12 are respectively connected to the high-current female terminal of the first cable socket 2 and the high-current male terminal of the second cable socket 3.

[0029] In other words, the connecting cable structure of the present application includes a soft cable thin conductor 11 for small current (about 1A to 3A) signal transmission, and also includes a soft cable thick conductor 12 for large current (about 3A to 20A) transmission. Compared with conventional cables, the connecting cable of the present application can simultaneously transmit signals and large currents, has good functionality, wide application scenarios, and optimized circuit layout.

[0030] The connecting cable structure of the embodiment of the utility model comprises a cable assembly 1 including a soft cable thin conductor 11 connected between a signal female terminal of a first cable socket 2 and a signal male terminal of a second cable socket 3, and a soft cable thick conductor 12 connected between a high current female terminal of the first cable socket 2 and a high current male terminal of the second cable socket 3, and the maximum current value allowed to pass through the soft cable thick conductor 12 is greater than the maximum current value allowed to pass through the soft cable thin conductor 11, so that the soft cable thin conductor 11 is used for small current signal transmission, and the soft cable thick conductor 12 is used for large current transmission, that is, the connecting cable of the present application can simultaneously perform signal transmission and large current transmission, has good functionality, wide application scenarios, and optimizes circuit layout.

[0031] Preferably, the thick conductor 12 of the flexible flat cable is made of copper or aluminum. Thus, the thin conductor 11 of the flexible flat cable is integrated with high-strength conductors such as copper or aluminum (thick conductor 12 of the flexible flat cable), thereby improving the strength and toughness of the overall flat cable.

[0032] Furthermore, if Figure 1 As shown, the wiring connection structure further includes a fixing plate 5, which is connected between the first wiring socket 2 and the second wiring socket 3, and the thin conductor 11 of the flexible wiring and the thick conductor 12 of the flexible wiring are routed along one side of the fixing plate 5. Thus, the fixing plate 5 can be used as a supporting frame, which is used to fix the first wiring socket 2 and the second wiring socket 3 on the one hand, and on the other hand, the side of the fixing plate 5 can abut against the thin conductor 11 of the flexible wiring to prevent it from shaking at will, thereby reducing the problem of vibration or impact damage to the thin conductor 11 of the flexible wiring, and the thick conductor 12 of the flexible wiring and the thin conductor 11 of the flexible wiring are routed on the same side of the fixing plate 5, so that the circuit layout space can be concentrated on the same side of the fixing plate 5, which is convenient for maintenance, and when the wiring connection structure is assembled with other components, it is only necessary to avoid assembly interference on one side of the routing.

[0033] Furthermore, if Figure 1 As shown, there are multiple thin conductors 11 of the flexible flat cable, and the multiple thin conductors 11 of the flexible flat cable are laid in parallel on one side of the fixing plate 5 to define a signal flexible flat cable group, and there are two thick conductors 12 of the flexible flat cable, which are respectively located on both sides of the signal flexible flat cable group along the arrangement direction of the thin conductors 11 of the flexible flat cable. In other words, the thin conductors 11 of the flexible flat cable are concentrated in the middle position, and the thick conductors 12 of the flexible flat cable are arranged on both sides. When assembled with the flat cable socket, the thin conductors 11 of the flexible flat cable concentrated in the middle can be directly inserted into the plug interface of the flat cable socket, and the thick conductors 12 of the flexible flat cable arranged on both sides can be screwed to the external wiring terminals separately, which is convenient for operation.

[0034] Furthermore, the first wiring socket 2 and / or the second wiring socket 3 are line-to-line wiring sockets, which are provided with wire holes, and the connection end of the soft cable thin conductor 11 connected to the line-to-line wiring socket is provided with a connection part adapted to the wire hole, and the connection part can be square or round. Therefore, the present application configures the conductor end connected to the line-to-line socket into a shape adapted to the wire hole, and the conductor can be directly passed through the wire hole to achieve connection, without the need to crimp the conductor cross section on site, reducing the assembly process of the connection wiring structure and improving production efficiency.

[0035] Optionally, the first cable socket 2 and / or the second cable socket 3 are wire-to-board cable sockets, which have a plurality of conductive sheets 21, and the connection end between the flexible cable thin conductor 11 and the wire-to-board cable socket is flat, such as a flat quadrangular prism, etc. Therefore, the contact surface between the flat conductor and the conductive sheet 21 is larger, the contact is more reliable, and the transmission is stable.

[0036] Furthermore, if Figure 3 As shown, the fixing plate 5 includes a main body 51 and a reinforcement plate 52. The reinforcement plate 52 is arranged on one end of the main body 51 facing the wire-to-board wiring socket. The wire-to-board wiring socket has an insertion interface. The insertion interface is provided with a plurality of conductive sheets 21 arranged in the arrangement direction of the flexible flat cable thin conductors 11. The reinforcement plate 52 has a protrusion 521 that cooperates with the insertion interface. The protrusion 521 has wire grooves corresponding to the plurality of conductive sheets one by one. The plurality of wire grooves are corresponding to the plurality of flexible flat cable thin conductors 11.

[0037] Therefore, multiple wire grooves can play a fixed guiding role for the thin conductors 11 of the flexible flat cable, ensuring that each conductor can reliably contact the corresponding conductive sheet 21 without deviation or shaking due to external vibration, avoiding poor contact or short circuit between conductors.

[0038] Preferably, the multiple wire grooves include a middle guide groove located in the middle part in the arrangement direction of the multiple soft cable thin conductors 11 and outer guide grooves arranged on both sides of the middle guide groove, the middle guide groove extends along the length direction of the soft cable thin conductor 11 and extends into the plug interface, the outer guide groove includes a first straight groove section, a transverse groove section and a second straight groove section, the first straight groove section extends into the plug interface, the second straight groove section is connected to the main body, the transverse groove section is connected between the first straight groove section and the second straight groove section and extends along the arrangement direction of the multiple soft cable thin conductors 11, and the multiple first straight groove sections are arranged at intervals along the arrangement direction of the multiple conductive sheets 21, the multiple second straight groove sections are arranged at intervals along the arrangement direction of the multiple soft cable thin conductors 11, and the multiple transverse groove sections are arranged at intervals along the direction away from the wire-to-board wiring socket.

[0039] Specifically, taking two adjacent outer wire troughs as an example, the first straight groove section and the second straight groove section of the outer wire trough located on the outer side are relatively spaced apart on the outer side of the first straight groove section and the second straight groove section of the outer wire trough located on the inner side, and the transverse groove section of the outer wire trough located on the outer side is closer to the plug-in interface than the straight groove section of the outer wire trough located on the inner side.

[0040] It should be noted that the plug interface of the cable socket is generally not too large, and the thin conductors 11 of the flexible cable need to be concentrated within the adaptable range of the plug interface to connect with the cable socket. When the number of thin conductors 11 of the flexible cable is large, and the width of the signal flexible group formed by their arrangement is greater than the width of the plug interface, the end of the conductor can be made thinner, and then the second straight slot section is used to complete the initial positioning, and then the horizontal slot section is used to avoid a section and then guide it to the first straight slot section for docking. In this way, the relatively thick main part of the conductor can be arranged at a regular spacing, and the thinner end of the conductor can be arranged in the first straight slot section with a relatively smaller spacing to complete the coordination with the plug interface.

[0041] Furthermore, if Figure 4 As shown, a thick conductor bushing 522 is also provided on the reinforcing plate 52, and the thick conductor bushing 522 is used to compress the thick conductor 12 of the flexible flat cable and screw it to the external terminal. Thus, the thick conductor bushing 522 is used to compress and fix the thick conductor 12 of the flexible flat cable, and there is no need to open a perforation on the thick conductor 12 of the flexible flat cable or wrap the thick conductor 12 of the flexible flat cable around the terminal, which is convenient for assembly and disassembly.

[0042] Preferably, a reinforcing structure, such as reinforcing ribs, is provided on the reinforcing plate 52 to enhance the structural strength of the plug-in fitting.

[0043] Preferably, the reinforcing plate 52 is detachably connected to the body 51 , so that when connecting different types of cable sockets, different types of reinforcing plates 52 can be replaced, which is flexible in application and does not require redesigning the entire fixing plate 5 , thereby saving costs.

[0044] In some embodiments, Figure 5 As shown, the thick conductor 12 of the flexible flat cable includes a plurality of conductor segments 121 arranged in sequence, and two adjacent conductor segments 121 are connected by a multi-layer conductive foil 122. It should be noted that when the length of the thick conductor 12 of the flexible flat cable required in actual working conditions is too long and needs to adapt to the change of the installation curved surface, the multi-layer conductive foil 122 can be used as a bending point to bend and turn the entire thick conductor 12 of the flexible flat cable to avoid damage to the conductor of the high rigidity part due to forced bending.

[0045] The circuit board connecting cable assembly of the embodiment of the utility model comprises a circuit board 4 and the connecting cable structure of the above embodiment.

[0046] like Figure 1As shown, a plug-in shell 6 that matches with the first row of cable sockets 2 is provided on the circuit board 4 , and the first row of cable sockets 2 is directly plugged into the plug-in shell 6 .

[0047] The circuit board connecting cable assembly of the embodiment of the utility model adopts the above-mentioned connecting cable structure. The cable assembly 1 includes a soft flat cable thin conductor 11 connected between the signal female terminal of the first cable socket 2 and the signal male terminal of the second cable socket 3, and a soft flat cable thick conductor 12 connected between the high-current female terminal of the first cable socket 2 and the high-current male terminal of the second cable socket 3. The soft flat cable thin conductor 11 is used to transmit small current signals, and the soft flat cable thick conductor 12 is used to transmit large currents. That is, the connecting cable of the present application can simultaneously transmit signals and large currents, has good functionality, wide application scenarios, and optimizes circuit layout.

[0048] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0049] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0050] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0052] In the present utility model, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0053] It should be understood that the utility model does not limit its application to the detailed structure and arrangement of the components proposed in this specification. The utility model can have other embodiments and can be implemented and executed in a variety of ways. The aforementioned deformation forms and modified forms fall within the scope of the utility model. It should be understood that the utility model and the utility model defined in this specification extend to all alternative combinations of two or more individual features mentioned or evident in the text and / or the drawings. All these different combinations constitute multiple alternative aspects of the utility model. The embodiments of this specification illustrate the best mode known for implementing the utility model and will enable those skilled in the art to utilize the utility model.

Claims

1. A connecting cable structure, characterized in that: It includes a cable assembly and a first cable socket and a second cable socket respectively located at two ends of the cable assembly; The cable assembly includes a flexible flat cable thin conductor and a flexible flat cable thick conductor. Under the same conductive conditions, the current value allowed to pass through the flexible flat cable thick conductor is greater than the current value allowed to pass through the flexible flat cable thin conductor. The two ends of the flexible flat cable thin conductor are respectively connected to the signal female terminal of the first cable socket and the signal male terminal of the second cable socket, and the two ends of the flexible flat cable thick conductor are respectively connected to the high-current female terminal of the first cable socket and the high-current male terminal of the second cable socket.

2. The connecting cable structure according to claim 1, characterized in that: The thick conductor of the flexible flat cable is made of copper or aluminum.

3. The connecting cable structure according to claim 1, characterized in that: It also includes a fixing plate, which is connected between the first cable socket and the second cable socket, and the thin conductor of the flexible cable and the thick conductor of the flexible cable are routed along one side of the fixing plate.

4. The connecting cable structure according to claim 3, characterized in that: There are multiple thin conductors of the flexible flat cable, which are arranged in parallel on one side of the fixing plate to define a signal flexible flat cable group. There are two thick conductors of the flexible flat cable, which are respectively located on both sides of the signal flexible flat cable group along the arrangement direction of the thin conductors of the flexible flat cable.

5. The connecting cable structure according to claim 4, characterized in that: The first wiring socket and / or the second wiring socket is a line-to-line wiring socket, the line-to-line wiring socket is provided with a wire through hole, and the connection end of the thin conductor of the flexible cable connected to the line-to-line wiring socket is provided with a connection part adapted to the wire through hole; Alternatively, the first cable socket and / or the second cable socket is a wire-to-board cable socket, the wire-to-board cable socket has a plurality of conductive sheets, and the connection end between the flexible cable thin conductor and the wire-to-board cable socket is flat.

6. The connecting cable structure according to claim 5, characterized in that: The fixing plate includes a main body and a reinforcement plate, wherein the reinforcement plate is arranged on one end of the main body facing the wire-to-board wiring socket, the wire-to-board wiring socket has an insertion interface, and a plurality of conductive sheets arranged in the arrangement direction of the thin conductors of the soft flat cable are provided in the insertion interface, the reinforcement plate has a convex portion cooperating with the insertion interface, and the convex portion has a wire groove corresponding to the plurality of the conductive sheets one by one, and the plurality of the wire grooves are correspondingly assembled with the plurality of thin conductors of the soft flat cable.

7. The connecting cable structure according to claim 6, characterized in that: The plurality of wire grooves include a middle guide groove located in the middle part in the arrangement direction thereof and outer guide grooves arranged on both sides of the middle guide groove, the middle guide groove extends along the length direction of the soft flat cable thin conductor and extends into the plug interface, the outer guide groove includes a first straight groove section, a transverse groove section and a second straight groove section, the first straight groove section extends into the plug interface, the second straight groove section is connected to the body, the transverse groove section is connected between the first straight groove section and the second straight groove section and extends along the arrangement direction of the plurality of soft flat cable thin conductors, and the plurality of first straight groove sections are arranged at intervals along the arrangement direction of the plurality of conductive sheets, the plurality of second straight groove sections are arranged at intervals along the arrangement direction of the plurality of soft flat cable thin conductors, and the plurality of transverse groove sections are arranged at intervals along the direction away from the wire-to-board wiring socket.

8. The connecting cable structure according to claim 6, characterized in that: The reinforcing plate is also provided with a thick conductor bushing, which is used to compress the thick conductor of the flexible flat cable and is screwed to the external terminal.

9. The connecting cable structure according to claim 1, characterized in that: The thick conductor of the flexible flat cable includes a plurality of conductor segments arranged in sequence, and two adjacent conductor segments are connected by a multi-layer conductive foil.

10. A circuit board connecting cable assembly, characterized in that: It comprises a circuit board and a connecting cable structure according to any one of claims 1 to 9.

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