Flexible flat cable protection structure and motor controller

Abstract

The utility model discloses a flexible flat cable protection structure and a motor controller, and the structure comprises a flexible flat cable which is used for the communication connection of a circuit board and a connector, and the circuit board is fixedly disposed on a supporting part; the first protection part and the second protection part are arranged in a stacked mode in the direction perpendicular to the supporting part, the first protection part is fixedly arranged on the supporting part, the flexible flat cable penetrates through a pressing contact area of the first protection part and the second protection part, and the circuit board comprises a connecting area for connecting the flexible flat cable. The first protection part and the connecting area are arranged at an interval, and the height of the first protection part in the direction perpendicular to the supporting part is the same as that of the connecting area. According to the utility model, the flexible flat cable is pressed and supported through the first protection part and the second protection part, so that the flexible flat cable is highly supported when being in butt joint with the connection area, and the risk of connection failure caused by unbalanced stress during inclined butt joint is reduced; meanwhile, the press fit of the first protection part and the second protection part on the flexible flat cable can reduce the length of the moving area of the flexible flat cable, thereby reducing the vibration risk of the flexible flat cable.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, and in particular to a flexible flat cable protection structure and a motor controller. Background Art

[0002] Flexible flat cables are used for data transmission between mobile components and motherboards, or between PCBs. They are fixed only at the ends, leaving the middle free to accommodate complex connection requirements. In vehicles, due to the complex dynamic conditions of driving, the free area of ​​the flexible cable is prone to movement, affecting the stability of the connection between the components at both ends.

[0003] Therefore, how to improve the stability of the connection effect and the safety of use of the flexible cable is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a flexible flat cable protection structure and a motor controller to enhance the stability of the connection effect and the safety of use of the flexible flat cable.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A flexible cable protection structure, comprising:

[0007] A flexible flat cable, used for communication connection between a circuit board and a connector, wherein the circuit board is fixedly arranged on the tray support portion;

[0008] A first guarding portion and a second guarding portion are stacked in a direction perpendicular to the support portion tray, the first guarding portion is fixedly arranged on the support portion tray, the flexible flat cable passes through the pressed contact area of ​​the first guarding portion and the second guarding portion, the circuit board includes a connection area for connecting the flexible flat cable, the first guarding portion is spaced apart from the connection area, and the height of the first guarding portion in a direction perpendicular to the support portion is the same as the height of the connection area.

[0009] Preferably, in the above-mentioned flexible flat cable protection structure, the second protection part is an elastic member, the hardness of the first protection part is greater than that of the second protection part, and the second protection part presses the flexible flat cable onto the first protection part through compression.

[0010] Preferably, in the above-mentioned flexible flat cable protection structure, in a direction perpendicular to the supporting portion, at least one of the two wall surfaces of the first protection portion is provided with an adhesive structure, and at least one of the two wall surfaces of the second protection portion is provided with an adhesive structure.

[0011] Preferably, in the above-mentioned soft flat cable protection structure, the two side walls of the first protection part in a direction perpendicular to the support part are provided with the adhesive structure, the first protection part is fixed on the support part through the adhesive structure, and the soft flat cable is fixed on the first protection part through the adhesive structure.

[0012] Preferably, in the above-mentioned flexible flat cable protection structure, the second protection part is a plurality of buckles with large-section covers, and the buckles are fixedly arranged on the first protection part and press the flexible flat cable to the first protection part through the covers.

[0013] Preferably, in the above-mentioned flexible flat cable protection structure, the projection of the second protection portion on the top surface of the first protection portion is completely located within the range of the top surface of the first protection portion.

[0014] Preferably, in the above-mentioned flexible flat cable protection structure, the first protection portion and the second protection portion are arranged in two groups at intervals on the support tray.

[0015] A motor controller comprises a box body, an upper cover and the flexible flat cable protection structure described in any one of the above embodiments, wherein the upper cover is buckled and connected to the box body, and the circuit board and the flexible flat cable are both arranged in the box body.

[0016] Preferably, in the above motor controller, the second protective portion is fixedly provided on the inner wall of the upper cover, and when the upper cover is buckled with the box body, the second protective portion cooperates with the first protective portion to press the flexible flat cable.

[0017] Preferably, in the above motor controller, a distance between a side of the first protection portion facing the connection area and the connection area is greater than 60 mm.

[0018] Preferably, in the above motor controller, a reinforcement portion is provided on the flexible flat cable, and the reinforcement portion is a sheet-like reinforcement structure covering the side wall of the flexible flat cable, and the reinforcement portion at least covers the area where the flexible flat cable passes through the first protective portion.

[0019] Preferably, in the above motor controller, the connector is embedded in a side wall of the box body, and the connection direction between the plug-in area on the connector and the connection area on the circuit board is perpendicular.

[0020] It can be seen from the above technical solution that the flexible flat cable protection structure provided by the present invention is based on the communication connection between the circuit board and the connector through the flexible flat cable, and is stacked with a first protective part and a second protective part in a direction perpendicular to the support part. The arrangement in the direction perpendicular to the support part can make the pressing surface of the first protective part and the second protective part parallel to the bearing surface of the support part, so that the flexible flat cable arranged between the first protective part and the second protective part can be plugged and connected with the circuit board in a posture parallel to the circuit board, thereby avoiding the bent flexible flat cable being tilted and subjected to force when docking with the connection area, thereby affecting the connection stability; at the same time, the height of the first protective part in the direction perpendicular to the support part is equal to the height of the connection area, and the docking is carried out at the same height on the basis of parallel docking, which can further improve the docking stability of the flexible flat cable and the connection area. At the same time, the pressing and limiting effect of the first and second protective parts reduces the free swing area on the flexible flat cable, that is, the flexible flat cable between the first and second protective parts to the connection area is limited and locked, and will not swing under motion conditions. It can also reduce the risk of connection failure of the flexible flat cable and contact wear with other structural parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of a flexible flat cable protection structure provided by an embodiment of the present utility model;

[0023] Figure 2 for Figure 1 lateral view of;

[0024] Figure 3 A schematic diagram of the assembly of a motor controller provided in an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the structure in which the second protective part is a buckle;

[0026] Figure 5 for Figure 3 Bottom view of

[0027] Figure 6 This is a cross-sectional structural diagram of the motor controller in assembly state.

[0028] Among them, 10-flexible cable; 20-circuit board; 210-connection area; 30-connector; 310-plug-in area; 40-support part; 510-first protective part; 520-second protective part; 530-clip; 60-connecting bolt; 70-box body; 80-upper cover. DETAILED DESCRIPTION

[0029] The core of the utility model is to disclose a flexible flat cable protection structure and a motor controller to improve the stability of the connection effect and the safety of use of the flexible flat cable.

[0030] In order to help those skilled in the art better understand the present invention, the following describes embodiments of the present invention with reference to the accompanying drawings. Furthermore, the embodiments described below do not limit the scope of the invention as set forth in the claims. Furthermore, the entire contents of the embodiments described below are not necessarily required to serve as the solution of the invention as set forth in the claims.

[0031] like Figure 1 and Figure 2 As shown, the flexible flat cable protection structure provided by the present invention primarily comprises a flexible flat cable 10, a first protective portion 510, and a second protective portion 520. The flexible flat cable 10 is used to connect the circuit board 20 and the connector 30, while the first and second protective portions 510 and 520 enhance the stability and safety of the flexible flat cable 10 in complex environments. The flexible flat cable protection structure is particularly suitable for use within electronic devices, where the flexible flat cable 10 must be routed within limited space while protecting it from mechanical stress or environmental damage. Therefore, the flexible flat cable 10 is designed to be sufficiently flexible to accommodate compact routing requirements while maintaining reliable electrical connections. The circuit board 20, serving as the connecting end, is fixedly mounted on a support portion 40. Designed for stability and space efficiency, the support portion 40 provides a strong support base for the circuit board 20, ensuring that it maintains its position and angle under various operating conditions. It should be noted that the support portion 40 can be a flat plate, tray, or other structure that provides a balanced support platform.

[0032] To protect and support the flexible flat cable 10, this embodiment further comprises a first protective portion 510 and a second protective portion 520 to compress and limit the position of the flexible flat cable 10. Specifically, the first protective portion 510 and the second protective portion 520 are stacked perpendicular to the support portion 40, allowing the flexible flat cable 10 to pass through the contact area between the two and be limited and supported. Specifically, the first protective portion 510 is fixed to the support portion 40, while the circuit board 20 has a connection area 210 for conductive connection of the flexible flat cable 10. Because the circuit board 20 is positioned at a certain height above the support portion 40, the connection area 210 is also positioned at a certain height relative to the support portion 40. While the first protective portion 510 is fixed to the support portion 40, its height is equal to that of the connection area 210. This allows the flexible flat cable 10 to be elevated by the first protective portion 510 before docking with the connection area 210, allowing for docking and connection. It enables the gold fingers on the flexible flat cable 10 to mate with the connection area 210 on the circuit board 20 in a straight line. For the flexible flat cable 10 that usually needs to be in a bent state, it can be transformed into a straight extended state at the pressed position of the first protective part 510 and the second protective part 520, and extend toward the connection area 210 to mate with the PIN pins on the connection area 210. The straight docking structure helps to reduce the risk of force imbalance during bending and docking, thereby reducing the risk of connection failure and improving the connection stability between the flexible flat cable 10 and the circuit board 20.

[0033] To reduce the risk of abrasion of the flexible flat cable 10 caused by the first and second protective portions 510, 520, in this embodiment, the second protective portion 520 is preferably made of an elastic material, such as silicone or foam, to provide the necessary elasticity to accommodate flexible flat cables 10 of varying thicknesses. This material also provides appropriate pressure during compression, securing the position of the flexible flat cable 10 and reducing abrasion due to the elasticity. The first protective portion 510 is harder than the second protective portion 520, ensuring that the first protective portion 510 will experience minimal or no deformation during mating. This allows the flexible flat cable 10 to maintain a desired height and enhances the stability of its connection to the connection area 210. It should be noted that the elasticity of this protective structure not only enhances the physical protection of the flexible flat cable 10 and maintains compression during mechanical vibration, but also ensures a stable and reliable electrical connection, reducing the risk of connection instability caused by external factors such as temperature fluctuations.

[0034] Furthermore, the first protective portion 510 and the second protective portion 520 can be fixedly connected using a variety of fixing methods. In some embodiments of the present invention, in a direction perpendicular to the support portion 40, at least one of the two walls of the first protective portion 510, namely the top and bottom surfaces, is provided with an adhesive structure. The adhesive structure can be a glue applied to the top and bottom surfaces. At the same time, at least one of the two walls of the second protective portion 520 is also provided with an adhesive structure. Taking the first protective portion 510 as an example, it can be fixed to at least one of the support portion 40 and the flexible flat cable 10 via the adhesive structure to improve the stability of the entire support structure.

[0035] It should be noted that, based on the above embodiments, taking the first protective part 510 as an example, it is preferred that the first protective part 510 is provided with an adhesive structure on both wall surfaces in a direction perpendicular to the support part 40. On the one hand, the first protective part 510 is fixed on the support part 40 through the adhesive structure, and on the other hand, the flexible flat cable 10 is also fixed on the first protective part 510 to maintain its stability and ensure the connection effect between the flexible flat cable 10 and the connection area 210.

[0036] In other embodiments of the present invention, Figure 4 As shown, the second protective portion 520 comprises several buckles 530 with large-cross-section covers. It should be noted that the "large-cross-section covers" here refer to the cover area having a larger cross-section in the axial direction of the buckle 530 relative to the area on the buckle 530 for insertion. The buckles 530 are inserted into and fixedly connected to the first protective portion 510, and their covers compress and secure the flexible flat cable 10. It should be noted that the flexible flat cable 10 can have holes to allow the buckles 530 to pass through, and the covers can be used to press the flexible flat cable 10 together. The first protective portion 510 can also have holes on both sides of the area in contact with the flexible flat cable 10 to allow the buckles 530 to pass through and press the flexible flat cable 10 together through the side areas of the covers.

[0037] Based on the above structure, the first and second protective portions 510, 520 are designed with symmetry in mind. They are preferably arranged symmetrically about the same plane of symmetry to provide uniform pressure distribution in the press-fit area and reduce the possibility of lateral movement of the flexible flat cable 10. Specifically, the first and second protective portions 510, 520 are preferably block-shaped rectangular parallelepiped structures. The widths of the first and second protective portions 510, 520 are equal, meaning the shorter sides of the rectangular parallelepiped structures are equal. Furthermore, the projection of the second protective portion 520 on the top surface of the first protective portion 510 is completely within the top surface of the first protective portion 510. Preferably, the projection of the second protective portion 520 is centered on the top surface of the first protective portion 510 to maintain a uniform laminated structure. This symmetrical design also simplifies the manufacturing process and facilitates the connection and assembly of the first and second protective portions 510, 520. To further optimize the above technical solution, in some embodiments of the present invention, the first protective portion 510 and the second protective portion 520 form a single protective structure, and at least two sets of protective structures are spaced apart on the support portion 40. This provides more comprehensive protection for the flexible flat cable 10, ensuring that the flexible flat cable 10 is effectively supported and protected in multiple areas. Through this structural design, the flexible flat cable protective structure ensures the precise connection between the flexible flat cable 10 and the circuit board 20 while providing multiple support points, reducing vibration and swaying of the flexible flat cable 10 during movement. This multiple protective portion layout also helps improve the stability and reliability of the entire system.

[0038] It should be noted that, under the working condition where the flexible flat cable 10 and the support part 40 have a large overlapping range, the first protective part 510 and the second protective part 520 can be appropriately increased to limit and support the flexible flat cable 10 within the range of the support part 40, so that the flexible flat cable 10 has better straightness and can avoid the flexible flat cable 10 from having too much freedom within the coverage range of the support part 40, and causing collision and wear with the support part 40 under movement conditions.

[0039] To further optimize the above technical solution, in this embodiment, the circuit board 20 is centrally positioned on the support portion 40 to ensure a more uniform support of the circuit board 20 by the support portion 40. At the same time, the connection area 210 is located at the center of one side wall of the circuit board 20 to ensure that the flexible flat cable 10 is evenly positioned on the side wall of the circuit board 20 it connects to after passing through the protective portion. The flexible flat cable 10 has equal extension areas of the circuit board 20 on both sides, making the connection structure of the flexible flat cable 10 more stable and reliable. This design ensures that the flexible flat cable protective structure ensures the accuracy of the connection between the flexible flat cable 10 and the circuit board 20 while providing uniform pressure distribution and reducing the physical pressure between the flexible flat cable 10 and the connection area 210. The centrally positioned circuit board 20 and the centrally positioned connection area 210 also help improve the stability and reliability of the entire system.

[0040] In addition, it should be noted that Figure 1 As shown, the stable setting of the circuit board 20 is the basis for the stable insertion of the flexible cable 10. Therefore, in this embodiment, the circuit board 20 is fixed on the support part 40 by four connecting bolts 60 to ensure the connection effect. At the same time, the four connecting bolts 60 are evenly arranged in the four corner areas of the circuit board 20. The circuit board 20 fixed in the four corner areas has a more stable connection effect. At the same time, the force applied to each connecting bolt 60 is uniform, reducing the risk of local failure of the connection point under motion conditions.

[0041] Furthermore, if Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, embodiments of the present invention also provide a motor controller comprising a housing 70 for providing a carrying space, a cover 80 for sealing an opening of the housing 70, and a flexible flat cable protection structure according to any of the aforementioned embodiments. The housing 70 and cover 80 are designed to fit tightly together, ensuring the stability and protection of internal components. The housing 70 is made of sturdy materials to withstand external impacts and environmental factors. The interlocking design of the cover 80 and housing 70 ensures the motor controller's tightness, preventing dust and moisture from entering. The flexible flat cable protection structure is integrated within the motor controller, housing the circuit board 20 and flexible flat cable 10. While the first protection portion 510 is fixed to the support portion 40, the second protection portion 520 is fixed to the inner wall of the cover 80. When the cover 80 and housing 70 are interlocked, they cooperate with the first protection portion 510 to press the flexible flat cable 10 together. This design ensures the stability and safety of the flexible flat cable 10 within the motor controller. Through the above structural design, the motor controller not only provides comprehensive protection for the flexible flat cable 10, but also ensures a stable connection between the circuit board 20 and the connector 30. The tight fit between the box body 70 and the upper cover 80 also helps to improve the stability and reliability of the entire system. It should be noted that a sealing gasket can be added between the box body 70 and the upper cover 80 to provide additional waterproof and dustproof capabilities. It should be noted that since the flexible flat cable protection structure in this embodiment has the technical effects of the other embodiments described above, the motor controller provided in this embodiment also has the above technical effects, which will not be repeated here.

[0042] Furthermore, based on the above embodiment, the distance between the first protective portion 510 and the connection area 210 on the side facing the connection area 210 is preferably greater than 60 mm. This helps ensure that the flexible flat cable 10 is not squeezed due to being too close when passing through the protective portion, making it easier for operators to assemble. Within this distance range, the flexible flat cable 10 has a sufficient straight extension to remain parallel to the circuit board 20 and achieve parallel insertion with the connection area 210, ensuring a stable insertion effect. At the same time, the flexible flat cable 10 is provided with sufficient bending area on the side away from the connection area 210 to prevent sharp bends that may affect the communication connection stability of the flexible flat cable 10.

[0043] It should also be noted that in some embodiments of the present invention, the flexible flat cable 10 is further provided with a reinforcement portion, which can be an insulating sheet and is installed in contact with the wall surface of the flexible flat cable 10 to increase the rigidity of the flexible flat cable 10 and reduce the risk of deformation of the flexible flat cable 10. It should also be noted that the area of ​​the flexible flat cable 10 where the reinforcement portion is provided at least covers the area where the flexible flat cable 10 passes through the first protective portion 510 to prevent connection failure of the flexible flat cable 10 due to excessive compression in the first protective portion 510.

[0044] In contrast to the above embodiment, the connector 30 is embedded in a side wall of the box body 70, saving space while ensuring the stability of the connector 30 and convenient external connection. Furthermore, the connection direction between the insertion area 310 on the connector 30 and the connection area 210 on the circuit board 20 is arranged perpendicular to each other. This design helps reduce bending of the flexible flat cable 10 during the connection process, thereby reducing stress concentration and potential damage. Furthermore, the perpendicular connection direction helps improve the stability and reliability of the entire system.

[0045] In the specification and claims of this utility model, as well as in the accompanying drawings, the terms "first," "second," "left," and "right," etc., are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements and may include steps or elements that are not listed.

[0046] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible cable protection structure, characterized in that: include: A flexible flat cable (10) for communication connection between a circuit board (20) and a connector (30), wherein the circuit board (20) is fixedly disposed on a support portion (40); A first protective portion (510) and a second protective portion (520) are stacked in a direction perpendicular to the support portion (40), the first protective portion (510) is fixedly arranged on the support portion (40), the flexible flat cable (10) passes through a contact area between the first protective portion (510) and the second protective portion (520), the circuit board (20) includes a connection area (210) for connecting the flexible flat cable (10), the first protective portion (510) and the connection area (210) are spaced apart, and the height of the first protective portion (510) in a direction perpendicular to the support portion (40) is the same as the height of the connection area (210).

2. The flexible cable protection structure according to claim 1, wherein: The second protective part (520) is an elastic part, the hardness of the first protective part (510) is greater than that of the second protective part (520), and the second protective part (520) presses the flexible flat cable (10) onto the first protective part (510) through a pressing action.

3. The flexible cable protection structure according to claim 1, wherein: In a direction perpendicular to the support portion (40), at least one of the two wall surfaces of the first protection portion (510) is provided with an adhesive structure, and at least one of the two wall surfaces of the second protection portion (520) is provided with an adhesive structure.

4. The flexible cable protection structure according to claim 3, wherein: The adhesive structure is provided on both side walls of the first protective portion (510) in a direction perpendicular to the support portion (40); the first protective portion (510) is fixedly arranged on the support portion (40) through the adhesive structure; and the flexible flat cable (10) is fixedly arranged on the first protective portion (510) through the adhesive structure.

5. The flexible cable protection structure according to claim 1, wherein: The second protective portion (520) is a plurality of buckles (530) with large-section covers, wherein the buckles (530) are fixedly arranged on the first protective portion (510) and press the flexible flat cable (10) to the first protective portion (510) through the covers.

6. The flexible flat cable protection structure according to claim 2, wherein: The projection of the second protective portion (520) on the top surface of the first protective portion (510) is completely located within the range of the top surface of the first protective portion (510).

7. The flexible cable protection structure according to claim 1, wherein: The first protection portion (510) and the second protection portion (520) are arranged in two groups at intervals on the support portion (40).

8. A motor controller, characterized in that: The invention comprises a box body (70), an upper cover (80) and a flexible flat cable protection structure according to any one of claims 1 to 7, wherein the upper cover (80) is snap-fitted to the box body (70), and the circuit board (20) and the flexible flat cable (10) are both arranged in the box body (70).

9. The motor controller according to claim 8, wherein: The second protective portion (520) is fixedly arranged on the inner wall of the upper cover (80), and when the upper cover (80) and the box body (70) are buckled together, the second protective portion (520) cooperates with the first protective portion (510) to press the flexible flat cable (10).

10. The motor controller according to claim 8, wherein: The distance between the side of the first protection portion (510) facing the connection area (210) and the connection area (210) is greater than 60 mm.

11. The motor controller according to claim 8, wherein: The flexible flat cable (10) is provided with a reinforcement portion, the reinforcement portion being a sheet-like reinforcement structure covering the side wall of the flexible flat cable (10), and the reinforcement portion at least covers the area of ​​the flexible flat cable (10) passing through the first protective portion (510).

12. The motor controller according to claim 8, wherein: The connector (30) is embedded in a side wall of the box body (70), and the connection direction of the plug-in area (310) on the connector (30) and the connection area (210) on the circuit board (20) is perpendicular.

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