CN219740702U - Flat circuit body with functional loop - Google Patents

Abstract

The flat circuit body with the functional loop comprises a flat circuit body, an electronic element and a conductive mechanism connected with the electronic element; the flat circuit body includes at least one conductor and an insulator surrounding the conductor, and the conductive mechanism passes through the insulator and is electrically connected with the conductor to connect the electronic component in series or in parallel with the conductor. The flat circuit body with the functional loop can directly connect electronic elements with different circuit functions with the flat circuit body loop, so that the defects of the prior art are overcome, and the application range of the flat circuit body in a vehicle-mounted environment is widened.

Description

Flat circuit body with functional loop

Technical Field

The present utility model relates to the field of automotive electronics, and more particularly to a flat circuit body with a functional circuit.

Background

A wiring member having flexibility such as an FPC (flexible printed circuit) and an FFC (flexible flat cable) may be referred to as a flat circuit body. The FPC/FFC has a large advantage over a small load and a signal type load due to its characteristics in terms of space and weight, and thus has been increasingly used in a vehicle-mounted electrical connection system. However, the FPC/FFC is inconvenient in use, for example, in the aspect of vehicle-mounted wiring harnesses, when signals and power sources of loads need to be filtered and amplified, or when galvanic isolation is needed between circuits, the conventional wiring harnesses can connect the related circuits with inductors/capacitors, triodes or plug-in diodes, but due to the particularity of the FPC/FFC circuits, the use of the FFC/FPC in a vehicle-mounted environment is greatly limited.

Therefore, the flat circuit body with the functional loop is provided, and electronic elements with different circuit functions can be directly connected with the flat circuit body loop, so that the defects of the prior art are overcome.

Disclosure of Invention

The flat circuit body with the functional loop can effectively protect the loop of the flat circuit body, and the use safety of the flat circuit body on the whole vehicle is improved.

The above object of the present utility model can be achieved by the following technical solutions:

a flat circuit body with a functional loop is provided, which is characterized by comprising a flat circuit body, an electronic element and a conductive mechanism connected with the electronic element;

the flat circuit body comprises at least one conductor and an insulator wrapping the conductor, and each conductive mechanism can penetrate through the insulator in the flat circuit body and respectively contact with the corresponding conductor to connect the electronic element with the conductor in series or in parallel.

Optionally, the flat circuit body includes a plurality of conductors and an insulator that covers the conductors, and each of the conductive mechanisms may pass through the insulator and be electrically connected to the respective conductor, or after at least a part of the insulator is stripped, the conductive mechanism is electrically connected to the respective conductor.

Optionally, the electronic component further comprises an insulating shell for coating the electronic component, and the conductive mechanisms penetrate through the insulating shell and are respectively connected with two ends of the electronic component.

Alternatively, a plurality of the conductive mechanisms can pass through an insulator outside the same conductor in the flat circuit body, the conductor having a disconnection portion therein, and the electronic component being disposed adjacent to the corresponding disconnection portion.

Optionally, the device comprises a plurality of conductive mechanisms, and the length directions of a plurality of conductive mechanisms are parallel to each other.

Alternatively, the flat circuit device comprises a plurality of flat circuit bodies and a plurality of conductive mechanisms, wherein the plurality of conductive mechanisms can respectively penetrate through insulators outside a plurality of conductors in the flat circuit bodies and are respectively electrically connected with the plurality of conductors, or the plurality of conductive mechanisms can respectively penetrate through insulators outside the plurality of flat circuit bodies and are respectively contacted with the conductors in the plurality of flat circuit bodies.

Optionally, the length direction of a plurality of the conductive mechanisms is parallel or perpendicular.

Optionally, each of the conductive mechanisms includes a base plate and a plurality of crimping teeth provided at both side edges of the base plate, an end of the base plate being capable of passing through the insulating case and being connected with an end of the electronic component;

each of the crimping teeth is capable of passing through the insulator on both sides of the corresponding conductor and the insulator outside the surface of one side of the conductor and being crimped onto the surface of the conductor.

Optionally, the crimping teeth on two sides of the bottom plate are staggered along the length direction of the bottom plate.

Optionally, the electronic component is an inductor or capacitor or resistor or diode or triode or switch or microprocessor chip or sensor.

Optionally, a metal fastener is arranged on the insulating shell in a penetrating way and is used for fixing the conductive mechanism and the end part of the electronic element or welding and fixing the conductive mechanism and the two ends of the electronic element.

Optionally, an insulating tape is adhered to at least one side surface of the flat circuit body at a position corresponding to the conductive mechanism.

Optionally, the flat circuit body is an FPC or an FFC.

In view of the above, the flat circuit body with the functional circuit in this document uses two conductive mechanisms to pass through the insulator outside the conductor in the crimped flat circuit body and connect with both ends of the electronic component, connects the electronic component with the filtering or galvanic isolation function in series or in parallel in the flat circuit body, introduces the filtering or galvanic isolation function in the circuit in the FFC or FPC, and changes many scenes that the filtering or galvanic isolation function cannot be directly introduced in the FFC or FPC circuit into scenes that can introduce the required function in any circuit, enlarges the application range of the FFC and FPC in the vehicle-mounted environment, and also can reduce the vehicle space cost and weight cost.

Drawings

The following drawings are only for purposes of illustration and explanation of the present utility model and are not intended to limit the scope of the utility model.

Wherein:

fig. 1: the structure diagram of the conductive mechanism is provided after the conductive mechanism is connected with the electronic element and the flat circuit body;

fig. 2: a structure diagram of the conductive mechanism provided herein after being connected with an electronic component;

fig. 3: the top view of fig. 2 when the electronic component is a diode;

fig. 4: the structure diagram is provided after the conductive mechanism is connected with the diode and the flat circuit body;

fig. 5: the top view of fig. 2 when the electronic component is an inductor;

fig. 6: the structure diagram is provided after the conductive mechanism is connected with the inductor and the flat circuit body;

fig. 7: is a structure diagram of two conductive mechanisms connected with a capacitor when the two conductive mechanisms are parallel in the length direction;

fig. 8: is a structural diagram of the two conductive mechanisms connected with the capacitor when the length directions of the two conductive mechanisms are vertical;

fig. 9: the structure is another structure diagram after the two conductive mechanisms are connected with the capacitor when the length direction is vertical;

fig. 10: is a structural diagram of the two conductive mechanisms connected with the capacitor and the flat circuit diagram when the length directions of the two conductive mechanisms are vertical.

Reference numerals illustrate:

1. a flat circuit body; 11. a conductor; 111. a disconnecting section; 12. an insulator; 121. a first insulating layer; 122. a second insulating layer;

2. an electronic component; 21. an insulating case; 22. a metal fastener;

3. a conductive mechanism; 31. a bottom plate; 32. crimping teeth;

4. an insulating tape.

Detailed Description

For a clearer understanding of the technical features, objects and effects herein, a detailed description of the present utility model will now be made with reference to the accompanying drawings.

There is provided a flat circuit body 1 having a functional circuit, as shown in fig. 1 to 10, comprising a flat circuit body 1, an electronic component 2, and a conductive mechanism 3 connected to the electronic component 2; the flat circuit body 1 includes at least one conductor 11 and an insulator 12 surrounding the conductor 11, and the conductive mechanism 3 may pass through the insulator 12 in the flat circuit body 1 and be electrically connected to the conductor 11, connecting the electronic component 2 in series or in parallel with the conductor 11. The flat circuit body 1 with the functional loop uses two conductive mechanisms 3 to penetrate through the insulator 12 outside the conductor 11 in the flat circuit body 1 and connect with two ends of the electronic element 2, connects the electronic element 2 with different functions in series or in parallel in the flat circuit body 1, introduces the functions of filtering or current isolation in the loop of the FFC or the FPC, so that many scenes that different circuit functions cannot be directly introduced in the FFC or the FPC originally become the scenes that the different circuit functions can be introduced in any loop, and the application range of the FFC and the FPC in the vehicle environment is enlarged.

In some embodiments, each of the conductive mechanisms 3 may pass through the insulator 12 and be electrically connected to the conductor 11, respectively, or the conductive mechanism 3 may be electrically connected to the corresponding conductor 11 after stripping at least a part of the insulator 12. It can be understood that: in some cases, the conductive means 3 are able to pierce the insulator 12 and electrically connect with the conductor 11, in other cases it is also possible to strip at least part of the insulator 12 before electrically connecting the conductive means 3 with the corresponding said conductor 11.

In some embodiments, the electronic component 2 further comprises an insulating shell 21 covering the electronic component 2, and the inner ends of the conductive mechanism 3 can pass through the insulating shell 21 and are respectively connected with two ends of the electronic component 2. In practical use, an insulating case 21 capable of covering the electronic component 2 is further provided, as shown in fig. 1 and 2, the inner ends of the two conductive mechanisms 3 penetrate through the insulating case 21 to be connected with two ends of the electronic component 2, so as to ensure connection of the conductive mechanisms 3 and conduction of a circuit, and meanwhile, the insulating case 21 can play a role in insulation and protection of the electronic component 2.

In some embodiments, the conductive mechanism 3 can pass through an insulator 12 outside the same conductor 11 in the flat circuit body 1, the conductor 11 has a disconnection 111 therein, and the electronic component 2 is disposed near the corresponding disconnection 111. In this case, as shown in fig. 1, 4 and 6, both of the conductive members 3 pass through the insulator 12 outside the same conductor 11 in the flat circuit body 1, and the conductor 11 is broken by one section to form a broken portion 111, and the two conductive members 3 pass through the conductor 11 on both sides of the broken portion 111 by pressure bonding and are connected to both ends of the electronic component 2 in the electronic component 2, so that the conductor 11 portion on one side of the broken portion 111 passes through the electronic component 2 and then forms a loop with the conductor 11 portion on the other side of the broken portion 111. Typically, the electronic component 2 is an inductor, a diode, a switch, or the like, and is connected in series to the circuit.

In some embodiments, a plurality of conductive mechanisms 3 are included, and the length directions of a plurality of conductive mechanisms 3 are parallel. In some use cases, as shown in fig. 1 to 6, when the electronic component 2 is connected in series to one wire in the flat circuit body 1, the two conductive mechanisms 3 pass through the insulator 12 outside the same conductor 11, and at this time, the length directions of the two conductive mechanisms 3 are parallel to each other and to the length direction of the electronic component 2, so that the installation is facilitated when the electronic component 2 is connected in series into the circuit.

In some embodiments, the flat circuit body 1 and the conductive mechanism 3 are included, and the conductive mechanism 3 can pass through insulators 12 outside the conductors 11 in the flat circuit body 1 and electrically connect with the conductors 11, respectively, or the conductive mechanism 3 can pass through insulators 12 outside the flat circuit body 1 and electrically connect with the conductors 11 in the flat circuit body 1, respectively. One of the two conductive mechanisms 3 passes through an insulator 12 outside one conductor 11 of the flat circuit body 1 and is electrically connected with the corresponding conductor 11, and the other passes through an insulator 12 outside the other conductor 11 of the flat circuit body 1 and is electrically connected with the corresponding conductor 11, and the electronic component 2 is connected in parallel between the two conductors 11; alternatively, one of the two conductive mechanisms 3 passes through the insulator 12 outside the conductor 11 in one flat circuit body 1 and is electrically connected to the corresponding conductor 11, and the other passes through the insulator 12 outside the conductor 11 in the other flat circuit body 1 and is electrically connected to the corresponding conductor 11, and the electronic component 2 is connected in parallel between the two flat circuit bodies 1. Typically, this connection is used when the electronic component 2 needs to be connected in parallel to the circuit.

In some embodiments, the length direction of a plurality of the conductive mechanisms 3 is parallel or perpendicular. In some usage scenarios, when the electronic component 2 needs to be connected in parallel to the two conductors 11 in the flat circuit body 1, the length directions of the two conductive mechanisms 3 are parallel and form a predetermined angle with the length direction of the electronic component 2, and in actual usage, the predetermined angle is generally a right angle; in other usage scenarios, when the two conductive mechanisms 3 are electrically connected to the conductors 11 in the two flat circuit bodies 1, respectively, the length directions of the two conductive mechanisms 3 are perpendicular to each other, as shown in fig. 8-10.

In some embodiments, each of the conductive mechanisms 3 includes a base plate 31 and a plurality of crimping teeth 32 provided at both side edges of the base plate 31, and an end of the base plate 31 can pass through the insulating case 21 and be connected with an end of the electronic component 2; each of the crimping teeth 32 is capable of piercing the insulator 12 on both sides of the corresponding conductor 11 and the insulator 12 outside the surface of one side of the conductor 11 and crimping it to the surface of the conductor 11. Further, referring to fig. 10, each of the conductive mechanisms 3 includes a base plate 31 and a plurality of crimping teeth 32 provided at both side edges of the base plate 31, and an end of the base plate 31 can pass through the insulating case 21 and be connected with an end of the fuse. Each crimping tooth 32 can be pierced by the insulator 12 on both sides of the corresponding conductor 11 and the insulator 12 outside the surface of one side of the conductor 11, and is bent and crimped onto the surface of the conductor 11, and the orientation of the crimping teeth 32 on each conductive mechanism 3 can be the same or opposite, and can be selected according to the actual requirement at the time of assembly.

In some embodiments, the crimping teeth 32 on both sides of the bottom plate 31 are staggered along the length direction of the bottom plate 31. The number of the crimp teeth 32 on both sides of the base plate 31 may be the same or different, and the crimp teeth 32 on both sides of the base plate 31 are preferably staggered along the length direction of the base plate 31.

In some embodiments, the electronic component 2 is an inductance or capacitance or resistance or a switch or diode or triode or a microprocessor chip or sensor. In actual use, when a filter element is required to be introduced into the flat circuit body 1, the electronic element 2 is generally an inductor or a capacitor, the inductor is connected in series with the same conductor 11, a disconnection portion 111 is arranged in the middle of the conductor 11, and the capacitor is connected in parallel between two conductors 11 in the flat circuit body 1 or between two flat circuit bodies 1; when a galvanic isolation or freewheel function is required to be introduced into the flat circuit body 1, the electronic element 2 generally adopts a diode, the diode is connected in series on the conductor 11 through the conductive mechanism 3, and a disconnection part 111 is arranged in the middle of the conductor 11 to realize the galvanic isolation or freewheel function; or when a switch is needed to be added in a part of the circuit, the switch can be connected into the flat circuit body 1 by using the two conductive mechanisms 3, and in some use cases, a circuit signal needs to be amplified, and then the end parts of the triodes are respectively connected with the conductive mechanisms 3 and then connected into the flat circuit body 1 to realize the function of signal amplification, and the electronic element 2 is arbitrarily selected according to specific use cases.

In some embodiments, a metal fastener 22 is provided on the insulating case 21 in a penetrating manner for fixing the inner end of the conductive mechanism 3 to the end of the electronic component 2. In order to facilitate the connection and fixation of the conductive mechanism 3 and the electronic component 2 and ensure that the conductive mechanism 3 and the electronic component 2 form a loop, a metal fastener 22 may be provided on the insulating case 21 in a penetrating manner for fixing the inner end of the conductive mechanism 3 and the end of the electronic component 2. The metal fastener 22 may be, for example, a rivet, so as to facilitate connection and fixation of the conductive mechanism 3 and the electronic component 2, and ensure that the conductive mechanism 3 and the electronic component 2 form a loop through the metal fastener 22; alternatively, the inner end of the conductive mechanism 3 may be welded to the end of the electronic component 2, however, other fixing methods may be adopted to ensure that the conductive mechanism 3 is connected to the electronic component 2 and forms a circuit, and this embodiment is merely illustrative.

In some embodiments, an insulating tape 4 is adhered to at least one side surface of the flat circuit body 1 at a position corresponding to the conductive mechanism 3. Corresponding perforations are formed in the insulator 12 at positions where the insulator needs to pass through the conductive mechanism 3, and two layers of insulators 12 outside the two side surfaces of the conductor 11 are respectively marked as a first insulating layer 121 and a second insulating layer 122; the bottom plate 31 is placed against the first insulating layer 121, the crimp teeth 32 on both sides of the bottom plate 31 can be pierced by corresponding perforations in the insulator 12 on both sides of the corresponding conductor 11, and then the crimp teeth 32 are bent and pierced by corresponding perforations in the second insulating layer 122 and brought into surface contact with the inner conductor 11.

Since the conductor 11 is exposed at the position of piercing crimping, it is necessary to bond the insulating tape 4 on the side of the flat circuit body 1 where the crimping teeth 32 are bent through the insulator 12 for better electrical protection and to improve structural mechanical strength.

In some embodiments, the flat circuit body 1 is an FPC or an FFC. It will be understood that the flat circuit body 1 may be an FPC or an FFC, and is formed by two layers of insulators 12 and a plurality of conductors 11 pressed between the two layers of insulators 12, and is formed in a flat strip shape as a whole, each conductor 11 is formed in a strip shape extending straight with a predetermined width, and the plurality of conductors 11 are arranged in parallel at intervals.

The foregoing is illustrative of the present utility model and is not to be construed as limiting the scope of the utility model. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this utility model, and are intended to be within the scope of this utility model.

Claims (13)

1. A flat circuit body with a functional loop, which is characterized by comprising a flat circuit body, an electronic element and a conductive mechanism connected with the electronic element;

the flat circuit body comprises at least one conductor and an insulator wrapping the conductor, and the conductive mechanism penetrates through the insulator and is electrically connected with the conductor, so that the electronic element is connected with the conductor in series or in parallel.

2. The flat circuit body with functional loops of claim 1, wherein said flat circuit body comprises a plurality of conductors and an insulator surrounding said conductors, each of said conductive means being capable of passing through said insulator and being electrically connected to said conductor, respectively, or wherein said conductive means is electrically connected to a corresponding one of said conductors after stripping at least a portion of said insulator.

3. The flat circuit body with functional circuit according to claim 1, further comprising insulating cases covering said electronic components, said conductive mechanisms penetrating through said insulating cases and being connected to both ends of said electronic components, respectively.

4. The flat circuit body with functional loops of claim 1 wherein said conductive mechanism is capable of passing through an insulator external to the same conductor in said flat circuit body, said conductor having a break therein, said electronic component being disposed adjacent to a corresponding said break.

5. The flat circuit body with functional loops of claim 2, comprising a plurality of conductive mechanisms, the plurality of conductive mechanisms being parallel to each other in length direction.

6. The flat circuit body with a functional circuit according to claim 1, comprising a plurality of said flat circuit bodies and a plurality of said conductive mechanisms, wherein a plurality of said conductive mechanisms can pass through insulators outside a plurality of conductors in said flat circuit body, respectively, and are electrically connected to a plurality of said conductors, respectively, or a plurality of said conductive mechanisms can pass through insulators outside a plurality of said flat circuit bodies, respectively, and are electrically connected to said conductors in a plurality of said flat circuit bodies, respectively.

7. The flat circuit body with functional loops of claim 6 wherein the length direction of a plurality of said conductive means is parallel or perpendicular.

8. The flat circuit body with a functional circuit according to claim 3, wherein,

each conductive mechanism comprises a bottom plate and a plurality of crimping teeth arranged at two side edges of the bottom plate, and the end part of the bottom plate can penetrate through the insulating shell and is connected with the end part of the electronic element;

each of the crimping teeth is capable of passing through the insulator on both sides of the corresponding conductor and the insulator outside the surface of one side of the conductor and being crimped onto the surface of the conductor.

9. The flat circuit body with a functional loop according to claim 8, wherein,

the crimping teeth on two sides of the bottom plate are staggered along the length direction of the bottom plate.

10. The flat circuit body with functional loop according to claim 1, wherein the electronic component is an inductance or capacitance or resistance or diode or triode or switch or microprocessor chip or sensor.

11. The flat circuit body with a functional circuit according to claim 3, wherein,

and the insulating shell is penetrated with a metal fastener for fixing the conductive mechanism with the end part of the electronic element or welding and fixing the conductive mechanism with the two ends of the electronic element.

12. The flat circuit body with a functional loop according to claim 1, wherein,

and an insulating tape is adhered to at least one side surface of the flat circuit body at a position corresponding to the conductive mechanism.

13. The flat circuit body with a functional loop according to claim 1, wherein,

the flat circuit body is an FPC or FFC.