Flexible circuit board and mobile printing device using the same
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUNMI INTELLIGENT TECH (ZHEJIANG) CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-06-26
Smart Images
Figure CN224418997U_ABST
Abstract
Description
Technical Field
[0001] This application relates primarily to flexible printed circuit boards, and more particularly to a flexible printed circuit board and a mobile printing device suitable for it. Background Technology
[0002] Currently, some equipment has a compact component layout, and the internal space of the equipment is subject to many constraints. As a result, when flexible printed circuits (FPCs) need to be laid in the equipment, they cannot be fixed by screws, clips, heat fusion and other methods.
[0003] Under these circumstances, flexible circuit boards are currently often fixed by adhesive bonding. However, adhesive bonding requires a large surface area inside the equipment to effectively secure the flexible circuit board. But space limitations within the equipment often prevent the provision of a suitable surface area, meaning a large flat surface cannot be achieved, resulting in only a small contact area between the flexible circuit board and the bonding surface. In this situation, the flexible circuit board is highly susceptible to detachment during environmental testing and temperature shock testing, leading to equipment malfunctions. Utility Model Content
[0004] The technical problem to be solved by this application is to provide a flexible circuit board and a mobile printing device suitable for it, which can improve the connection stability of the flexible circuit board in the device.
[0005] To solve the above-mentioned technical problems, this application provides a flexible circuit board suitable for installation inside equipment. The flexible circuit board includes: a ribbon cable body, including at least one connection end connected to a component in the equipment, the first end face of the connection end being fixedly connected to a first fixed position of the equipment; and at least one fixing piece connected to the connection end, the first fixing surface of the fixing piece being fixedly connected to a second fixed position of the equipment, and the first fixing surface and the first end face are not parallel to each other after fixing.
[0006] Optionally, after fixing, the first fixing surface and the first end face are perpendicular to each other.
[0007] Optionally, the first fixing surface is fixedly connected to the second fixing position by adhesive bonding.
[0008] Optionally, the side of the first fixing surface connected to the second fixing position is provided with adhesive backing.
[0009] Optionally, the device further includes at least one positioning post disposed at the first fixed position, and the connecting end is provided with a positioning hole corresponding to the positioning post and penetrating the first end face, wherein the positioning hole is used to allow the connecting end to be sleeved on the positioning post so that the first end face is fixedly connected to the first fixed position; and / or the first end face is fixedly connected to the first fixed position by an adhesive method.
[0010] Optionally, there are multiple fixing pieces. When multiple fixing pieces are connected to the same connecting end, each fixing piece is connected to a different side of the connecting end.
[0011] Optionally, the flexible circuit board may also include a flexible connector that connects the fixing piece and the connecting end.
[0012] Optionally, the flexibility of the flexible connector is greater than the flexibility of the substrate of the flexible circuit board.
[0013] Optionally, the flexible connector is adapted to bend when the fixed piece moves relative to the connecting end; the flexible connector is sheet-shaped and has at least one through hole along the bend.
[0014] Optionally, the connection end includes a copper post for connecting to the component.
[0015] To address the aforementioned technical problems, this application provides a mobile printing device, which includes: a sensor and a motherboard; and the aforementioned flexible circuit board, wherein the flexible circuit board is connected to the motherboard and the sensor via a connection terminal, and the sensor and the motherboard communicate with each other through the flexible circuit board.
[0016] Compared with the prior art, this application has the following advantages: the connecting end has a connected fixing piece, the first end face of the connecting end is fixedly connected to the first fixed position in the equipment, and the first fixing surface of the fixing piece is fixedly connected to the second fixed position in the equipment. After fixing, the first end face and the first fixing surface are complementary and parallel, thereby providing a stabilizing force in different directions, so that the connecting end can be stably fixed in the equipment; the fixing piece and the connecting end are connected by a flexible connector, and multiple through holes are provided at the bending point of the flexible connector. The flexible connector is made of a highly flexible material, thereby reducing the rebound force generated by the bending of the flexible connector after the fixing piece is fixed and improving the stabilizing force generated by the fixing piece. Attached Figure Description
[0017] The accompanying drawings are included to provide a further understanding of this application; they are incorporated into and constitute a part of this application. The drawings illustrate embodiments of this application and, together with this specification, serve to explain the principles of this application. In the drawings:
[0018] Figure 1 This is a schematic diagram of a partial structure of a mobile printing device according to an embodiment of this application;
[0019] Figure 2 Based on this application Figure 1 The illustrated embodiment is a schematic diagram showing the flexible circuit board separating from the first fixed position;
[0020] Figure 3 This is a schematic diagram of a partial structure of a mobile printing device according to another embodiment of this application;
[0021] Figure 4 This is a schematic diagram of a first connection end, a fixing piece, and a flexible connector of a flexible circuit board according to an embodiment of this application; and
[0022] Figure 5 This is a top view schematic diagram of a flexible connector according to an embodiment of this application. Detailed Implementation
[0023] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this application. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.
[0024] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" are not specifically singular and may include plural forms. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.
[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0026] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0027] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0028] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, these terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application. In addition, although the terminology used in this application is selected from commonly known and used terms, some terms mentioned in this application's specification may have been chosen by the applicant according to his or her judgment, and their detailed meanings are explained in the relevant sections of this description. Moreover, this application should be understood not only through the actual terms used, but also through the meaning implied by each term.
[0029] It should be understood that when a component is referred to as "on another component," "connected to another component," "coupled to another component," or "in contact with another component," it can be directly on, connected to, coupled to, or in contact with that other component, or there may be an intervening component. In contrast, when a component is referred to as "directly on another component," "directly connected to," "directly coupled to," or "directly in contact with" another component, there is no intervening component. Similarly, when a first component is referred to as "electrically contacting" or "electrically coupled to" a second component, there is an electrical path between the first and second components that allows current to flow. This electrical path may include capacitors, coupled inductors, and / or other components that allow current to flow, even if there is no direct contact between the conductive components.
[0030] Figure 1 This is a schematic diagram of a partial structure of a mobile printing device. Figure 2 yes Figure 1 A schematic diagram showing the flexible circuit board 10 separated from the first fixed position in the illustrated embodiment. (Refer to...) Figure 1 and Figure 2 As shown, the mobile printing device has a flexible circuit board 10 inside, and the connecting end 11 of the flexible circuit board 10 is fixedly connected to the first fixed position 21 by adhesive bonding. It can be understood that this application only uses... Figure 1 and Figure 2 The example description of the layout of the flexible circuit board in the device does not limit the application of the flexible circuit board to mobile printing devices, nor does it limit the fixed object of the flexible circuit board 10 to the first fixed position 21.
[0031] Figures 1 to 2 The flexible circuit board 10 in this application is at risk of detachment when the technical solution of this application is not adopted. Specifically, because the first fixed position 21 is located in the ribbed structure of the mobile printing device, the bonding area between the connecting end 11 and the first fixed position 21 is small, resulting in a weak adhesive force. When the mobile printing device is used for a long time or in extreme environments, the adhesive force may further decrease to the point where it cannot secure the flexible circuit board 10, causing the connecting end 11 to detach from the first fixed position 21, leading to performance failure of the mobile printing device. It should be noted that adhesive force is the adsorption force generated when an object's surface comes into contact with other substances (such as glue or tape), usually referring to intermolecular physical adsorption (such as van der Waals forces) or chemical adsorption, such as the adsorption effect of tape when sticking paper.
[0032] To address the aforementioned problems, this application proposes the following technical solution. (Refer to...) Figure 3 and Figure 4As shown, the flexible circuit board 100 includes a ribbon cable body 110, two fixing pieces 120, and two flexible connectors 130. The ribbon cable body 110 includes two connection ends 111, namely a first connection end 1111 and a second connection end 1112. The first connection end 1111 is connected to the motherboard (not shown in the figure) in the mobile printing device, and the second connection end 1112 is connected to the sensor 200 in the mobile printing device. The sensor 200 is used to detect whether paper is present. In this embodiment, the sensor 200 is a color matching light sensor, model A-SL660IR1C-A01-4T. After receiving the signal from the sensor 200 indicating that no paper is present, the motherboard reminds the user holding the mobile printing device that the mobile printing device is out of paper. In this embodiment, the motherboard is a PCB motherboard. In the above process, the sensor 200 and the motherboard communicate through the flexible circuit board 100, that is, the signal indicating that no paper is present is transmitted through the flexible circuit board 100.
[0033] Continue to refer to Figure 3 The first end face of the first connecting end 1111 is connected to the first fixed position 21. In one embodiment, the first end face is fixedly connected to the first fixed position 21 by an adhesive bonding method. In one embodiment, the mobile printing device further includes two positioning posts 30 disposed at the first fixed position 21, combined with... Figure 4 The first connecting end 1111 is provided with a positioning hole 11111 corresponding to the positioning post 30 and penetrating the first end face. The positioning hole 11111 is used to allow the first connecting end 1111 to be fitted onto the positioning post 30, thereby fixing the first end face to the first fixed position 21. It should be noted that the fixed connection between the first end face and the first fixed position 21 can be achieved using only the above-described adhesive method or the cooperation of the positioning hole 11111 and the positioning post 30, or by using the above-described adhesive method in conjunction with the positioning hole 11111 and the positioning post 30, to achieve a more stable connection between the first end face and the first fixed position 21. Figure 3 In this embodiment, the first connection terminal 1111 also includes two copper pillars 11112, which are used to connect to the motherboard to transmit the signal of the sensor 200.
[0034] Continue to refer to Figure 4 Two fixing pieces 120 are respectively connected to the first connecting end 1111 via corresponding flexible connectors 130, and each fixing piece 120 is connected to a different side of the first connecting end 1111. It should be noted that... Figure 4The example only shows two opposing sides of a square-shaped first connecting end 1111 connected to corresponding fixing pieces 120. In other embodiments, more fixing pieces may be provided as needed, or at least one fixing piece may be retained. The first fixing surface of the fixing piece 120 is fixedly connected to the second fixing position 22 of the mobile printing device, and the first fixing surface and the first end face are not parallel after fixing. In one embodiment, the first fixing surface and the first end face are perpendicular to each other after fixing. In one embodiment, the first fixing surface is fixedly connected to the second fixing position 22 by adhesive bonding. In one embodiment, the side of the first fixing surface connected to the second fixing position 22 is provided with adhesive backing. For example, the first fixing surface is provided with both adhesive backing and release paper, so that the first fixing surface can have usable adhesive backing for a long time, which facilitates the placement of the flexible circuit board 100 in the corresponding device without having to apply glue to the first fixing surface during placement, and without having to consider the amount of glue (e.g., too little glue will result in insufficient stability, too much glue will result in glue dripping inside the device), thereby improving assembly efficiency.
[0035] Continue to refer to Figure 4 The flexible connector 130 is adapted to bend when the fixed piece 120 moves relative to the first connecting end 1111, thereby forming a corresponding bend AA. Further combined... Figure 5 The flexible connector 130 is sheet-shaped, and three through holes 131 are provided along the bend AA on the flexible connector 130. These through holes 131 pass through the bend, reducing the amount of material in the flexible connector 130 at the bend AA, thus reducing the springback force after bending. This reduces the tensile force on the fixing piece 120 connected to the flexible connector 130, thereby improving the fixing strength between the first fixing surface and the second fixing position 22. It should be noted that... Figure 5 The through hole 131 cuts off the long side of the flexible connector 130, dividing the flexible connector 130 into two independent connecting sub-components. In other embodiments, the size of the through hole 131 can be adjusted according to actual needs, so that the flexible connector 130 remains a single unit. In one embodiment, the flexibility of the flexible connector 130 is higher than that of the substrate of the flexible circuit board 100, thereby reducing the springback force at the bend of the flexible connector 130, further reducing the tensile force on the fixing piece 120, and improving the fixing strength between the first fixing surface and the second fixing position 22. For example, the substrate of the flexible circuit board 100 is used as the substrate of the flexible connector 130, and the entire flexible connector 130 or its bend is softened, thereby making the flexibility of the flexible connector 130 higher than that of the substrate of the flexible circuit board 100.
[0036] The above has provided a brief description of the various detailed features of the flexible circuit board 100. The following will refer to... Figure 2 and Figure 3The application of the flexible printed circuit board 100 in mobile printing equipment is described in detail. For example... Figure 2 As shown, the mobile printing device has a column 20 inside, and this column 20 has a ribbed structure. Therefore, the area of the upper surface of the column 20, i.e., the first fixed position 21, is relatively small. Furthermore, the two opposite sides of the column 20 form the second fixed positions 22. It should be noted that... Figure 2 and Figure 3 Due to structural obstruction, only one second fixed position 22 is displayed. Further integration... Figure 3 For the aforementioned column 20, the first end face of the first connecting end 1111 of the flexible circuit board 100 is connected to the first fixed position 21 by adhesive bonding. The fixing pieces 120, connected to the two sides opposite to the first connecting end 1111, are respectively connected to the corresponding second fixed positions 22 by adhesive bonding. Thus, the first connecting end 1111 is subjected to adhesive forces perpendicular to the surface of the first fixed position 21 and perpendicular to the surface of the second fixed position 22, and the adhesive forces corresponding to the first fixed position 21 and the second fixed position 22 are perpendicular to each other. That is, the first connecting end 1111 is subjected to fixing forces in different directions, thereby improving the stability of the first connecting end 1111 when affected by external forces in different directions and preventing the first connecting end 1111 from detaching from the column 20. Furthermore, the positioning hole 11111 of the first connecting end 1111 is fitted onto the positioning post 30, which, while assisting the first connecting end 1111 in accurately connecting to the motherboard, also provides additional fixing force. It should be noted that the second connection end 1112 is fixedly connected to the sensor 200 using conventional means and its stability is enhanced by the fixing piece 120. However, in other embodiments, fixing pieces can be configured on any one or more connection ends according to the actual internal settings of the device, thereby effectively enhancing the stability of the corresponding connection end.
[0037] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the exemplary embodiments of this application.
[0038] Furthermore, this application uses specific terms to describe embodiments of the application. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic related to at least one embodiment of the application. Therefore, it should be emphasized and noted that "an embodiment," "one embodiment," or "an alternative embodiment" mentioned twice or more in different locations in this specification do not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.
[0039] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.
[0040] Although this application has been described with reference to specific embodiments, those skilled in the art should recognize that the above embodiments are only used to illustrate this application, and various equivalent changes or substitutions can be made without departing from the spirit of this application. Therefore, any changes or modifications to the above embodiments within the essential spirit of this application will fall within the scope of the claims of this application.
Claims
1. A flexible circuit board, characterized in that, Suitable for installation inside equipment, the flexible circuit board includes: The cable body includes at least one connection end that connects to a component in the device, wherein a first end face of the connection end is fixedly connected to a first fixed position of the device; and At least one fixing plate is connected to the connecting end, and the first fixing surface of the fixing plate is fixedly connected to the second fixing position of the device, and after fixing, the first fixing surface and the first end face are not parallel to each other.
2. The flexible circuit board as described in claim 1, characterized in that, After fixing, the first fixing surface and the first end face are perpendicular to each other.
3. The flexible circuit board as described in claim 1, characterized in that, The first fixing surface is fixedly connected to the second fixing position by an adhesive method.
4. The flexible circuit board as described in claim 3, characterized in that, The side of the first fixing surface that is connected to the second fixing position is provided with adhesive backing.
5. The flexible circuit board as described in claim 1, characterized in that, The device further includes at least one positioning post disposed at the first fixed position, and the connecting end is provided with a positioning hole corresponding to the positioning post and penetrating through the first end face, wherein... The positioning hole is used to allow the connecting end to be sleeved on the positioning post, thereby fixing the first end face to the first fixed position; and / or The first end face is fixedly connected to the first fixed position by an adhesive method.
6. The flexible circuit board as described in claim 1, characterized in that, The number of fixing pieces is multiple. When multiple fixing pieces are connected to the same connecting end, each fixing piece is connected to a different side of the connecting end.
7. The flexible circuit board as described in claim 1, characterized in that, The flexible circuit board also includes a flexible connector that connects the fixing piece and the connecting end.
8. The flexible circuit board as described in claim 7, characterized in that, The flexibility of the flexible connector is greater than that of the substrate of the flexible circuit board.
9. The flexible circuit board as described in claim 7, characterized in that, The flexible connector is adapted to bend when the fixed piece moves relative to the connecting end; The flexible connector is sheet-shaped, and at least one through hole is provided along the bend of the flexible connector.
10. The flexible circuit board as described in claim 7, characterized in that, The connecting end includes a copper pillar for connecting to the component.
11. A mobile printing device, characterized in that, The mobile printing device includes: Sensors and motherboards; and The flexible circuit board as described in any one of claims 1-10, wherein the flexible circuit board is connected to the motherboard and the sensor via a connection terminal, and the sensor and the motherboard are adapted to communicate via the flexible circuit board.