TWM539754U - Flexible printed circuit board structure - Google Patents

Abstract

A flexible printed circuit board structure includes a spiral flexible printed circuit board and a protection cover with stretchable and retractable characteristics. The spiral flexible printed circuit board includes a flexible substrate, a patterned circuit layer and a plurality of electrical contacts. The patterned circuit layer is disposed on the flexible substrate. The electrical contacts are disposed on an end of the flexible substrate and electrically connected to the patterned circuit layer. The protection cover at least covers a part of the spiral flexible printed circuit board to provide stretchability and retractility.

Description

Flexible circuit board structure

The present invention relates to a flexible circuit board structure, and more particularly to a flexible circuit board structure that is spirally wound.

In today's information society, human dependence on electronic products is increasing. In order to meet the requirements of high speed, high efficiency, light weight and shortness of today's electronic products, flexible circuit boards with flexural characteristics have been gradually applied to various electronic devices, such as notebook computers (Smartphones) and smart phones (smart phones). Phone), tablet PC, digital camera, and printer. It is worth noting that the flexible circuit board can be used not only for electrical connection, but also for carrying wafers or other electronic components, and its application level is quite extensive.

However, when applied to a device having a need for repeated bending (for example, a robot arm, etc.), the flexible wiring board still has a problem of entanglement and knotting, and when the device such as a robot arm is bent, The flexible circuit board tends to be folded in half. If this state is repeated for a long period of time, it is easy to cause damage to the circuit on the flexible circuit board and reduce the life of the flexible circuit board.

The novel creation provides a flexible circuit board structure which can be spirally wound and can provide protection for the lines on the flexible circuit board and provide extension and telescopic functions, thereby extending the structure of the flexible circuit board. life.

The flexible circuit board structure created by the present invention comprises a spiral flexible circuit board and a protective body, which can provide functions of extension and telescopic. The spiral flexible circuit board comprises a spirally wound flexible substrate, a patterned circuit layer and a plurality of electrical contacts. The patterned wiring layer is disposed on the flexible substrate. The electrical contact is disposed at one end of the flexible substrate and electrically connected to the patterned circuit layer. The protective body covers at least a part of the spiral flexible circuit board.

In an embodiment of the present invention, the protective body includes a protective sleeve that is sleeved outside the spiral flexible circuit board, and the spiral flexible circuit board is spirally wound around the protective sleeve.

In an embodiment of the present invention, the protective sleeve is a flexible protective sleeve.

In an embodiment of the present invention, the protective sleeve is a non-flexible protective sleeve.

In an embodiment of the present invention, the protective sleeve exposes an electrical contact.

In an embodiment of the present invention, the flexible circuit board structure further includes a plurality of light emitting elements disposed on the flexible substrate and electrically connected to the patterned circuit layer.

In an embodiment of the present invention, the protective sleeve is a light-transmissive protective sleeve.

In an embodiment of the present invention, the protective body includes a spiral protective body, and the spiral flexible circuit board is attached to the spiral protective body to spirally spiral together with the spiral protective body.

In an embodiment of the present invention, the flexible circuit board structure further includes a plurality of light emitting elements disposed on the flexible substrate and electrically connected to the patterned circuit layer.

In an embodiment of the present invention, the spiral protection body is a light transmission spiral protection body.

In an embodiment of the present invention, the flexible substrate includes an upper surface and a lower surface, and the patterned circuit layer and the electrical contact are disposed on the upper surface, and the surface of the spiral flexible circuit board is attached to the surface. Attached to the spiral protector.

In an embodiment of the present invention, the flexible circuit board structure further includes a sensing component disposed on the flexible substrate and electrically connected to the patterned circuit layer.

Based on the above, in the flexible circuit board structure created by the present invention, the spiral flexible circuit board is spirally wound, which can effectively shorten the length and the required configuration space, and the flexible circuit board structure is applied. When there is a device with repeated bending requirements, the problem of entanglement, knotting, and folding can be effectively avoided, thereby prolonging the life of the flexible circuit board structure. Moreover, the protective body can provide protection to the spiral flexible circuit board, thereby improving the structural strength of the spiral flexible circuit board and preventing the spiral flexible circuit board from being damaged by the outside. Therefore, the flexible circuit board structure can effectively improve the reliability and extend the life of the flexible circuit board structure.

The above described features and advantages of the present invention will become more apparent and understood from the following description.

The above and other technical contents, features and effects of the present invention will be apparent from the following detailed description of the embodiments. The directional terms mentioned in the following embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only directions referring to the additional schema. Therefore, the directional terminology used is for illustrative purposes and is not intended to limit the novel creation. Also, in the following embodiments, the same or similar elements will be given the same or similar reference numerals.

1 is a schematic view of a flexible circuit board structure in accordance with an embodiment of the present invention. 2 is a partially enlarged schematic view showing the structure of the flexible wiring board of FIG. 1. The flexible circuit board structure 100 includes a spiral flexible circuit board 110 and a protection body 120. The spiral flexible circuit board 110 includes a flexible substrate 112 spirally wound, a patterned circuit layer 114, and a plurality of electrical contacts 116. In this embodiment, the material of the flexible substrate 112 includes a flexible material such as polyimine, polyamine, polyether phthalimide, polyethylene terephthalate, liquid crystal polymer, etc., usually heat resistant The material of the flexible substrate 112 may be polyimine, or the creation of the novel is not limited thereto. The patterned wiring layer 114 is provided on the flexible substrate 112 by, for example, printing, and the electrical contact 116 is provided on one end of the flexible substrate 112 and electrically connected to the patterned wiring layer 114. The protective body 120 covers at least a part of the spiral flexible wiring board 110.

In particular, the protector 120 can expose at least the electrical contacts 116. In this embodiment, the flexible circuit board structure 100 further includes an electrical connector disposed at an end of the spiral flexible circuit board 110 and electrically connected to the electrical contact 116. As such, the flexible circuit board structure 100 can be electrically connected to other electronic components through the exposed electrical contacts 116 and/or electrical connector connectors. In the present embodiment, the width of the spiral flexible circuit board 110 is between about 100 micrometers (μm) and 150 micrometers. Of course, the numerical values of the embodiment are for illustrative purposes only. This is limited.

With this configuration, the spiral flexible wiring board 110 is spirally wound, which can effectively shorten its length and required configuration space, and the flexible wiring board structure 100 of the present embodiment is applied to, for example, a robot arm. When the device for bending is required, the problem of entanglement, knotting, and folding can be effectively avoided, thereby prolonging the life of the flexible wiring board structure 100. Moreover, the protective body 120 can provide protection to the spiral flexible circuit board 110, thereby improving the structural strength of the spiral flexible circuit board 110 and preventing the spiral flexible circuit board 110 from being damaged by the outside. Therefore, the flexible circuit board structure 100 of the present embodiment can effectively improve the reliability of the flexible circuit board structure 100 and extend the life of the flexible circuit board structure 100.

In this embodiment, the protective body 120 can be a protective sleeve as shown in FIG. 1 , which is sleeved outside the spiral flexible circuit board 110 , and the spiral flexible circuit board 110 is spirally wound. Inside the protective sleeve 120. Specifically, the spiral flexible circuit board 110 can form a spirally wound outer shape by, for example, a winding forming method, and then the spiral flexible circuit board 110 is passed through the protective sleeve 120 to form a FIG. The flexible circuit board structure 100 is shown.

In the present embodiment, the protective sleeve 120 is a flexible protective sleeve, so that the flexible circuit board structure 100 can be bent and extended arbitrarily with the spiral flexible circuit board 110. The protective sleeve 120 has an extendable and retractable nature to provide the flexible circuit board structure 100 with the function of extending and telescoping. In addition, the flexible circuit board structure 100 further includes at least one electronic component 118 disposed on the flexible substrate 112 and electrically connected to the patterned circuit layer 114. In this embodiment, the electronic component 118 can be a sensing component. Specifically, the electronic component 118 can be, for example, a pressure sensing component, a speed sensing component, or a temperature sensing component. As such, when the flexible circuit board structure 100 of the present embodiment is applied to an electronic device such as a robot arm that needs to control the operating force, speed or temperature, the electronic device can transmit through the flexible circuit board structure 100. The components are controlled to operate, and thus the operational fineness of the electronic device using the flexible wiring board structure 100 can be improved.

In addition, in an embodiment of the present invention, the flexible circuit board structure 100 may include a plurality of light emitting elements disposed on the flexible substrate 112 and electrically connected to the patterned circuit layer 114. In other words, the at least one electronic component 118 of the present embodiment can be a plurality of light emitting components. In this configuration, the protective sleeve 120 is a light-transmissive protective sleeve, that is, the protective sleeve 120 can be formed of a light transmissive material. With such a configuration, the flexible circuit board structure 100 can be applied to decorative or lighting applications and can be flexibly bent into various shapes depending on the needs of the user or product.

In an embodiment of the novel creation, the protective sleeve 120 is a non-flexible protective sleeve. That is, the protective sleeve 120 is formed using a non-flexible material. In the present embodiment, the non-flexible protective sleeve 120 can be used to enhance the structural strength of the flexible circuit board structure 100. In other embodiments, the protective sleeve 120 can provide a waterproof function. For example, the flexible circuit board structure 100 can include both a flexible protective sleeve 120 and a non-flexible protective sleeve 120 that are respectively sleeved on different portions of the spiral flexible circuit board 110. Provide different protections for different needs. For example, in this embodiment, the flexible protective sleeve can be sleeved in the portion of the flexible circuit board structure 100 that needs to be bent, and the non-flexible protection can be set in the portion that requires high structural strength. The casing can also be provided with a waterproof protective sleeve in the part with waterproof requirements. Of course, this embodiment is for illustrative purposes only, and the novel creation is not limited thereto.

3 is a schematic view of a flexible circuit board structure in accordance with another embodiment of the present invention. 4 is a partially enlarged schematic view showing the structure of the flexible wiring board of FIG. 3. It should be noted that the flexible circuit board structure 100a of the present embodiment is similar to the flexible circuit board structure 100 of FIG. 1. Therefore, the present embodiment follows the component numbers and parts of the foregoing embodiments, wherein the same is used. The reference numerals are used to denote the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted part, reference may be made to the foregoing embodiment, and the description is not repeated herein. Referring to FIG. 3 and FIG. 4, differences between the flexible wiring board structure 100a of the present embodiment and the flexible wiring board structure 100 of FIG. 1 will be described below.

In this embodiment, the protective body 120 can be a spiral protective body, and the spiral flexible circuit board 110 is attached to the spiral protective body 120 to spirally spiral together with the spiral protective body 120. In detail, the flexible substrate 112 includes an upper surface and a lower surface, and the patterned circuit layer 114 and the electrical contacts 116 are disposed on the upper surface of the flexible substrate 112, and the spiral flexible circuit board 110 Then, the lower surface of the flexible substrate 112 is attached to the spiral protective body 120. Therefore, the spiral protective body 120 can expose the patterned circuit layer 114 and the electrical contacts 116 of the spiral flexible circuit board 110, and can improve the structural strength of the spiral flexible circuit board 110. As such, the flexible circuit board structure 100a can be electrically connected to other electronic components through the exposed electrical contacts 116.

In this embodiment, the flexible circuit board structure 100a further includes at least one electronic component 118 disposed on the flexible substrate 112 and electrically connected to the patterned circuit layer 114. In this embodiment, the electronic component 118 can be a sensing component. Specifically, the electronic component 118 can be, for example, a pressure sensing component, a speed sensing component, or a temperature sensing component. As such, when the flexible circuit board structure 100a of the present embodiment is applied to an electronic device such as a robot arm that needs to control the operating force, speed or temperature, the electronic device can transmit through the flexible circuit board structure 100a. The components are controlled to operate, and thus the operational fineness of the electronic device using the flexible wiring board structure 100a can be improved.

In addition, in an embodiment of the present invention, the flexible circuit board structure 100a may include a plurality of light emitting elements disposed on the flexible substrate 112 and electrically connected to the patterned circuit layer 114. In other words, the at least one electronic component 118 of the present embodiment can be a plurality of light emitting components. With such a configuration, the flexible wiring board structure 100a can be applied to decorative or lighting applications, and can be flexibly bent into various shapes according to the needs of the user or the product. In this embodiment, the flexible circuit board structure 100a further includes an electrical connector 130 disposed at an end of the spiral flexible circuit board 110 and electrically connected to the electrical contact 116. As such, the flexible circuit board structure 100 can be electrically connected to other electronic components through the exposed electrical contacts 116 and/or the electrical connectors 130.

In summary, in the flexible circuit board structure created by the present invention, the spiral flexible circuit board is spirally wound, which can effectively shorten the length and the required configuration space, and the flexible circuit board structure When applied to a device having a need for repeated bending, the problem of entanglement, knotting, and folding can be effectively avoided, thereby prolonging the life of the flexible circuit board structure. Moreover, the protective body can provide protection to the spiral flexible circuit board, thereby improving the structural strength of the spiral flexible circuit board and preventing the spiral flexible circuit board from being damaged by the outside. Therefore, the flexible circuit board structure can effectively improve the reliability and extend the life of the flexible circuit board structure.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the novel creation, and any person skilled in the art can make some changes without departing from the spirit and scope of the novel creation. Retouching, the scope of protection of this new creation is subject to the definition of the scope of the patent application attached.

100/100a‧‧‧Flexible circuit board structure

110‧‧‧Spiral flexible circuit board

112‧‧‧Flexible substrate

114‧‧‧ patterned circuit layer

116‧‧‧Electrical contacts

118‧‧‧Electronic components

120‧‧‧Protection/protective casing

1 is a schematic view of a flexible circuit board structure in accordance with an embodiment of the present invention. 2 is a partially enlarged schematic view showing the structure of the flexible wiring board of FIG. 1. 3 is a schematic view of a flexible circuit board structure in accordance with another embodiment of the present invention. 4 is a partially enlarged schematic view showing the structure of the flexible wiring board of FIG. 3.

100‧‧‧Flexible circuit board structure

110‧‧‧Spiral flexible circuit board

120‧‧‧Protection/protective casing

Claims (12)

A flexible circuit board structure comprising: a spiral flexible circuit board comprising a spirally wound flexible substrate, a patterned circuit layer and a plurality of electrical contacts, the patterned circuit layer disposed On the flexible substrate, the electrical contacts are disposed at one end of the flexible substrate and electrically connected to the patterned circuit layer; and a protective body covering at least a portion of the spiral flexible portion circuit board. The flexible circuit board structure of claim 1, wherein the protective body comprises a protective sleeve sleeved outside the spiral flexible circuit board, and the spiral flexible circuit board is A spiral is wound around the protective sleeve. The flexible circuit board structure of claim 2, wherein the protective sleeve is a flexible protective sleeve having extensible and retractable characteristics. The flexible circuit board structure of claim 2, wherein the protective sleeve is a non-flexible protective sleeve. The flexible circuit board structure of claim 2, further comprising a plurality of light-emitting elements disposed on the flexible substrate and electrically connected to the patterned circuit layer. The flexible circuit board structure of claim 5, wherein the protective sleeve is a light-transmissive protective sleeve. The flexible circuit board structure of claim 1, wherein the protective body exposes the electrical contacts. The flexible circuit board structure of claim 1, wherein the protective body comprises a spiral protective body attached to the spiral protective body to be attached to the spiral The protective bodies are spirally wound together. The flexible circuit board structure of claim 8, further comprising a plurality of light emitting elements disposed on the flexible substrate and electrically connected to the patterned circuit layer. The flexible circuit board structure according to claim 8, wherein the spiral protection body is a light transmission spiral protection body. The flexible circuit board structure of claim 8, wherein the flexible substrate comprises an upper surface and a lower surface, and the patterned circuit layer and the electrical contacts are disposed on the upper surface The spiral flexible circuit board is attached to the spiral protective body with the lower surface. The flexible circuit board structure of claim 1, further comprising a sensing component disposed on the flexible substrate and electrically connected to the patterned circuit layer.