A kind of electric connector anti-deviation jig for patch
Patent Information
- Application Number
- CN202522554858.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-01
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-01
AI Technical Summary
但是，在生产过程中，Type-C接口经过贴片工艺后，经常出现位置偏移的现象，导致在整机组装后，Type-C接口严重偏移，进而导致数据线无法正常在垂直方向上进行插拔
[0024]本申请的技术效果在于：通过在盖板上设置沿长度方向延伸的限位槽，限位槽可在盖板的宽度方向对电连接器进行限位，以抑制电连接器在盖板宽度方向的位置偏移，使得电连接器在整机组装后，其接口能与整机外壳的开孔实现精确对位，以消除因接口偏移导致的组装问题。确保用户在使用数据线时，能够实现顺畅的垂直插拔，避免了因倾斜插拔导致的接口物理损伤、插拔力异常，提升了产品的可靠性与用户的使用体验。
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Figure CN224924107U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface mount fixture technology, and more particularly to a fixture for preventing misalignment of electrical connectors used in surface mount assembly. Background Technology
[0002] With the rapid development of electronic technology, miniaturized, high-density electrical connectors such as Type-C have been widely used in various electronic devices such as smartphones, tablets, and cash registers. Type-C interfaces are typically mounted on circuit boards using surface mount technology (SMT). However, during the manufacturing process, the Type-C interface often experiences positional misalignment after surface mounting, resulting in significant misalignment after assembly. This makes it difficult to insert and remove data cables vertically. Users often experience sticking or difficulty inserting the cable, requiring multiple attempts or tilting the cable to achieve a connection, severely impacting the user experience. Utility Model Content
[0003] The purpose of this application is to provide an anti-misalignment fixture for electrical connectors used in surface mount technology (SMT), which can suppress the positional misalignment of electrical connectors during SMT to eliminate assembly problems caused by electrical connector misalignment.
[0004] The technical solution provided in this application is as follows:
[0005] A fixture for preventing misalignment of surface mount electrical connectors, comprising:
[0006] A carrier having a placement slot for placing circuit boards;
[0007] A cover plate is detachably fixed to the carrier, and a limiting groove is provided on the side of the cover plate facing the carrier, the limiting groove extending along the length direction of the cover plate;
[0008] When the cover plate is fixed to the carrier, the pins of the electrical connector are inserted into the circuit board, and the top end of the electrical connector extends into the limiting groove to limit the displacement of the electrical connector in the width direction of the cover plate.
[0009] In some embodiments, the single-sided gap between the outer wall of the electrical connector and the inner wall of the limiting groove in the width direction of the cover plate ranges from 0.1 to 0.3 mm.
[0010] In some embodiments, the single-sided gap between the outer wall of the electrical connector and the inner wall of the limiting groove is 0.2 mm in the width direction of the cover plate.
[0011] In some embodiments, the carrier is provided with a plurality of placement slots along the length of the cover plate;
[0012] The cover plate is provided with a plurality of limiting grooves along the length of the cover plate, and the plurality of limiting grooves are provided in a one-to-one correspondence with the plurality of placement grooves.
[0013] In some embodiments, multiple limiting grooves are connected to form a through groove extending through the cover plate along its length.
[0014] In some embodiments, the cover plate is further provided with a clearance groove communicating with the limiting groove on the side facing the vehicle, and the clearance groove is larger in the width direction of the cover plate than the limiting groove is in the width direction of the cover plate.
[0015] In some embodiments, the vehicle is provided with a plurality of first positioning parts at both ends along its length;
[0016] The cover plate is provided with a plurality of second positioning parts at both ends along the length direction, and the plurality of second positioning parts correspond one-to-one with the plurality of first positioning parts and fit tightly together.
[0017] In some embodiments, the cover plate has two first connecting portions at one end along its length and two second connecting portions at the other end;
[0018] The two first connecting portions are located on both sides of the cover plate along the width direction and extend along the width direction of the cover plate;
[0019] The two second connecting portions are located on both sides of the cover plate along the width direction and extend along the width direction of the cover plate;
[0020] The first connecting part and the second connecting part are respectively provided with the second positioning part.
[0021] In some embodiments, the first positioning part is a positioning hole or positioning post disposed on the carrier;
[0022] The second positioning part is a positioning post or positioning hole provided on the cover plate.
[0023] In some implementations, the electrical connector is a Type-C connector.
[0024] The technical advantage of this application lies in the following: By providing a limiting groove extending along the length of the cover plate, the limiting groove can limit the electrical connector in the width direction of the cover plate, thereby suppressing the positional displacement of the electrical connector in the width direction of the cover plate. This ensures that after the entire device is assembled, the interface of the electrical connector can be precisely aligned with the opening of the outer casing, eliminating assembly problems caused by interface misalignment. This ensures that users can smoothly plug and unplug data cables vertically, avoiding physical damage to the interface and abnormal plugging / unplugging force caused by tilted plugging and unplugging, thus improving product reliability and user experience. Attached Figure Description
[0025] The present application will be further described in detail below with reference to the accompanying drawings and specific embodiments:
[0026] Figure 1 This is a front structural schematic diagram of an anti-displacement fixture for patch electrical connectors provided in an embodiment of this application;
[0027] Figure 2 This is a schematic diagram of the back structure of an anti-displacement fixture for surface mount electrical connectors provided in one embodiment of this application;
[0028] Figure 3 yes Figure 2 Enlarged view of point A in the middle;
[0029] Figure 4 This is a schematic diagram of the structure of a cover plate provided in one embodiment of this application;
[0030] Figure 5 This is a partial cross-sectional schematic diagram of an anti-displacement fixture for surface mount electrical connectors provided in one embodiment of this application;
[0031] Figure 6 This is a schematic diagram of the structure of the cover plate and the electrical connector provided in one embodiment of this application;
[0032] Figure 7 This is a schematic diagram of the assembly of a carrier and a cover plate according to an embodiment of this application.
[0033] Explanation of icon numbers:
[0034] 100, Carrier; 110, Placement slot; 120, First positioning part; 200, Cover plate; 210, Limiting slot; 220, Clearance slot; 230, Second positioning part; 240, First connecting part; 250, Second connecting part; 300, Circuit board; 310, First insertion hole; 320, Second insertion hole; 400, Electrical connector; 410, First pin; 420, Second pin. Detailed Implementation
[0035] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.
[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the specific implementation methods of this application will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without creative effort.
[0037] To keep the drawings concise, each drawing only schematically shows the parts relevant to this application, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."
[0038] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.
[0039] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; or they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0040] In the embodiments shown in the accompanying drawings, the directional indications (such as up, down, left, right, front, and back) are relative rather than absolute when describing the structure and movement of the various components, and are not intended to limit the direction of the product during actual use.
[0041] Furthermore, in the description of this application, ordinal numbers, such as "first" and "second," are used only to distinguish related objects and should not be construed as indicating or implying the relative importance or order between related objects.
[0042] In existing SMT (Surface Mount Technology) assembly processes, the industry-standard solution to suppress the positional shift of Type-C connectors during the soldering stage is to strictly control the dimensional tolerances of the mating holes on the circuit board used to insert the connector pins. However, this solution has significant drawbacks in practical applications: if the tolerances of the mating holes on the circuit board are controlled too strictly (i.e., the hole diameter is too small), although the positional shift of the connector can be suppressed to some extent, it is very easy for multiple pins of the connector to be difficult to insert smoothly during assembly due to insufficient assembly tolerance space, which can easily lead to pin bending, deformation, or even breakage, thus introducing new assembly defects. Conversely, if the dimensional tolerances of the mating holes on the circuit board are relaxed (i.e., the hole diameter is too large), it is not effective in suppressing the positional drift of the connector during the solder melting process, resulting in poor anti-shifting improvement.
[0043] To address the aforementioned issues, this application provides a fixture for preventing misalignment of surface-mount electrical connectors. By installing a removable cover plate on the fixture and a limiting groove on the cover plate, the fixture can suppress the positional misalignment of the electrical connector in the width direction of the cover plate. This ensures that after assembly, the connector's interface is precisely aligned with the opening in the housing, eliminating assembly problems caused by interface misalignment. This ensures smooth vertical insertion and removal of data cables, preventing physical damage to the interface and abnormal insertion / removal forces caused by tilted insertion or removal, thus improving product reliability and user experience. Furthermore, this solution does not rely on uncontrollable material dimensional tolerances, exhibits good execution performance, and demonstrates significant and consistent improvement.
[0044] like Figures 1 to 7 As shown, in one or more embodiments, this disclosure provides a fixture for preventing misalignment of an electrical connector used in surface mount technology (SMT), including a carrier 100 and a cover plate 200. The carrier 100 has a placement groove 110 for placing a circuit board 300. The cover plate 200 is detachably fixed to the carrier 100, and a limiting groove 210 is provided on the side of the cover plate 200 facing the carrier 100, extending along the length direction of the cover plate 200. When the cover plate 200 is fixed to the carrier 100, the pins of the electrical connector 400 are inserted into the circuit board 300, and the top end of the electrical connector 400 extends into the limiting groove 210 to limit the displacement of the electrical connector 400 in the width direction of the cover plate 200. The length direction of the cover plate 200 is... Figure 1 As indicated by the middle arrow a, the width direction of the cover plate 200 is... Figure 1 The direction indicated by the middle arrow b.
[0045] Specifically, the carrier 100 is a reflow oven carrier used to support, position, and protect the circuit board 300 in the reflow oven. The carrier 100 has a placement slot for placing the circuit board 300, which is embedded within the slot. The slot restricts the movement of the circuit board 300 in the xy plane. The circuit board 300 has multiple first insertion holes 310 and multiple second insertion holes 320 for inserting the pins of the electrical connector 400. The bottom of the electrical connector 400 has multiple first pins 410 and multiple second pins 420, with the first pins 410 correspondingly inserted into the first insertion holes 310 and the second pins 420 correspondingly inserted into the second insertion holes 320.
[0046] The first pin 410 is typically plate-shaped, and the first insertion hole 310 is an oblong hole adapted to the shape of the first pin 410. If the size of the first insertion hole 310 is reduced to limit the positional displacement of the electrical connector 400 during the placement process, some of the second pins 420 may not be able to be smoothly inserted into the second insertion hole 320, causing the second pins 420 to be bent or deformed and damaged, thus leading to new assembly defects. Therefore, this embodiment abandons the solution of modifying the circuit board design, and instead provides a detachable cover plate 200 on the carrier 100. When the cover plate 200 is fixed on the carrier 100, there is a gap between the cover plate 200 and the carrier 100 to accommodate the electrical connector 400. The cover plate 200 has a limiting groove 210 on the side facing the carrier 100, which extends along the length of the cover plate 200 and is adapted to the shape of the electrical connector 400.
[0047] During the surface mount technology (SMT) process, the circuit board 300 is first placed in the placement slot 110 of the carrier 100. Then, the pins of the electrical connector 400 are inserted into the insertion holes of the circuit board 300. Next, the cover plate 200 is fixed to the side of the carrier 100 where the circuit board 300 is mounted. After the cover plate 200 is fixed to the carrier 100, the top of the electrical connector 400 extends into the limiting groove 210 of the cover plate 200. The limiting groove 210 limits the electrical connector 400 on both sides along the width direction of the cover plate 200 to restrict the displacement of the electrical connector 400 in the width direction of the cover plate 200 during the SMT process. This solves the problem of the electrical connector 400's position shifting during the SMT process, so that after the entire machine is assembled, its interface can be precisely aligned with the opening of the machine housing, thus eliminating assembly problems caused by interface shifting.
[0048] It is understood that the anti-offset fixture for surface mount electrical connectors in this embodiment can be applied not only to Type-C connectors, but also to any other electrical connectors that need to be mounted by SMT process and need to prevent positional offset during soldering, such as, but not limited to: Type-B connectors, Micro USB connectors, board-to-board connectors, etc.
[0049] In some embodiments, in the width direction of the cover plate 200, the single-sided gap between the outer wall of the electrical connector 400 and the inner wall of the limiting groove 210 ranges from 0.1 to 0.3 mm, that is, the width of the limiting groove 210 is 0.2 to 0.6 mm larger than the width of the electrical connector 400 extending into the limiting groove 210. The width of the limiting groove 210 is slightly larger than the width of the electrical connector 400, which facilitates the insertion of the top of the electrical connector 400 into the limiting groove 210. The single-sided gap between the outer wall of the electrical connector 400 and the inner wall of the limiting groove 210 is less than 0.3 mm, avoiding the problem of the electrical connector 400 shifting in the width direction of the cover plate 200 due to excessive gap.
[0050] Preferably, in the width direction of the cover plate 200, the single-sided gap between the outer wall of the electrical connector 400 and the inner wall of the limiting groove 210 is 0.2mm, that is, the width of the limiting groove 210 is 0.4mm larger than the width of the electrical connector 400 extending into the limiting groove 210. When the single-sided gap between the outer wall of the electrical connector 400 and the inner wall of the limiting groove 210 is 0.2mm, a good balance can be achieved between smooth assembly and effective limiting, which can prevent assembly difficulties caused by too small a gap and eliminate the risk of displacement caused by too large a gap. Furthermore, through extensive production practice, it has been verified that even if the electrical connector 400 has a slight positional offset of 0.2mm in the width direction of the cover plate 200, this deviation is within the tolerance range of the overall assembly and will not have a substantial impact on subsequent shell assembly and data cable insertion and removal operations. Therefore, designing the single-sided gap between the outer wall of the electrical connector 400 and the inner wall of the limiting groove 210 to be 0.2mm is a preferred solution.
[0051] In some embodiments, such as Figure 7 As shown, the carrier 100 has multiple placement slots 110 along the length of the cover plate 200; the cover plate 200 has multiple limiting slots 210 along the length of the cover plate 200, and the multiple limiting slots 210 are configured in a one-to-one correspondence with the multiple placement slots 110.
[0052] The carrier 100 is provided with multiple placement slots 110 for placing circuit boards 300, allowing multiple circuit boards 300 to be mounted simultaneously. This not only shortens production time and increases capacity but also improves the consistency of product soldering results. The cover plate 200 is provided with multiple limiting slots 210 along its length. Each limiting slot 210 corresponds to a different electrical connector 400. When the cover plate 200 is fixed to the carrier 100, the electrical connector 400 on each circuit board 300 extends into a limiting slot 210, thereby suppressing the positional displacement of the electrical connector 400 during the mounting process.
[0053] In this embodiment, by setting multiple limiting grooves 210 on the cover plate 200, the positional displacement of multiple electrical connectors 400 during the placement process can be simultaneously limited, which not only improves production efficiency and reduces costs, but also ensures product consistency.
[0054] Furthermore, such as Figure 4 As shown, multiple limiting grooves 210 are connected to form a through groove extending through the cover plate 200 along its length. Connecting multiple limiting grooves 210 along the length of the cover plate 200 to form a through groove not only achieves weight reduction of the cover plate 200, but also simplifies the machining of multiple limiting grooves 210 to the machining of a single through groove, eliminating the need for precise alignment and machining of multiple independent grooves, significantly reducing the machining difficulty and manufacturing cost of the cover plate 200. Furthermore, the through groove design facilitates the cleaning of accumulated solder balls, flux, or dust within the limiting grooves 210, ensuring the long-term accuracy of the cover plate 200 and maintaining its continuous and stable anti-displacement effect.
[0055] Furthermore, such as Figure 4 As shown, the cover plate 200 is also provided with a relief groove 220 communicating with the limiting groove 210 on the side facing the carrier 100. The dimension of the relief groove 220 along the width direction of the cover plate 200 is larger than the dimension of the limiting groove 210 along the width direction of the cover plate 200.
[0056] Electrical connectors 400 typically come with a protective cover at the factory. This cover forms a robust physical barrier, preventing any direct contact or damage to the connector terminals (pins) during transportation, handling, and loading. Furthermore, the connector housing itself may be uneven or irregular, hindering vacuum pick-and-place operations by the pick-and-place machine's nozzle. The protective cover provides a large, flat, and uniform surface, greatly facilitating precise gripping and placement by the pick-and-place machine's nozzle.
[0057] During placement, the pick-and-place machine grips the protective cover and mounts the electrical connector 400 onto the circuit board 300. Since the protective cover is larger than the electrical connector 400, to prevent interference between the cover plate 200 and the protective cover on the electrical connector 400, the cover plate 200 is provided with a clearance groove 220 to avoid interference with the protective cover. When the cover plate 200 is fixed to the carrier 100, the area of the electrical connector 400 with the protective cover mounted on it enters the clearance groove 220, and the area of the electrical connector 400 without the protective cover mounted on it enters the limiting groove 210, so that the limiting groove 210 engages with the electrical connector 400 to prevent the electrical connector 400 from shifting position during the placement process.
[0058] The width of the clearance groove 220 is greater than the width of the limiting groove 210. The clearance groove 220 and the limiting groove 210 can form a stepped groove, which can also limit the electrical connector 400 in the length direction of the cover plate 200.
[0059] In some embodiments, such as Figure 1 and Figure 4 As shown, the carrier 100 has multiple first positioning parts 120 at both ends along its length; the cover plate 200 has multiple second positioning parts 230 at both ends along its length, and the multiple second positioning parts 230 correspond one-to-one with the multiple first positioning parts 120 and fit tightly together. The first positioning part 120 is a positioning hole or positioning post provided on the carrier 100; the second positioning part 230 is a positioning post or positioning hole provided on the cover plate 200.
[0060] The carrier 100 and the cover plate 200 are positioned and connected via positioning pins and positioning holes, saving assembly time and improving production efficiency. The tight fit (interference fit) between the positioning pins and positioning holes not only prevents poor positioning due to excessive clearance but also ensures that the cover plate 200 maintains a unique and precise relative position with the carrier 100 each time it is fixed to it. This allows the limiting groove 210 on the cover plate 200 to consistently and accurately limit the electrical connector 400, guaranteeing extremely high repeatability and consistency of the anti-misalignment effect. Furthermore, the precise positioning connection between the cover plate 200 and the carrier 100 effectively prevents lateral forces or torques on the electrical connector 400 caused by cover plate misalignment, thereby preventing deformation or damage to the pins of the electrical connector 400.
[0061] Furthermore, such as Figure 4 As shown, the cover plate 200 has two first connecting portions 240 at one end along its length and two second connecting portions 250 at the other end; the two first connecting portions 240 are respectively located on both sides of the cover plate 200 along its width and extend along the width of the cover plate 200; the two second connecting portions 250 are respectively located on both sides of the cover plate 200 along its width and extend along the width of the cover plate 200; the first connecting portions 240 and the second connecting portions 250 are respectively provided with second positioning portions 230.
[0062] The cover plate 200 is elongated. Two first connecting parts 240 are provided at one end along the length direction of the cover plate 200, and two second connecting parts 250 are provided at the other end. The two first connecting parts 240 and the two second connecting parts 250 are symmetrically arranged with respect to the cover plate 200. Second positioning parts 230 are respectively provided on the first connecting parts 240 and the second connecting parts 250. The cover plate 200 is positioned and connected to the carrier 100 through the second positioning parts 230 on the first connecting parts 240 and the second connecting parts 250, which improves the stability of the connection between the cover plate 200 and the carrier 100 and ensures the uniformity of the fastening force between the cover plate 200 and the carrier 100.
[0063] In the above embodiments, the descriptions of each embodiment have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.
[0064] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of this application. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the protection scope of this application.
Claims
1. A fixture for preventing misalignment of surface mount electrical connectors, characterized in that, include: A carrier having a placement slot for placing circuit boards; A cover plate is detachably fixed to the carrier, and a limiting groove is provided on the side of the cover plate facing the carrier, the limiting groove extending along the length direction of the cover plate; When the cover plate is fixed to the carrier, the pins of the electrical connector are inserted into the circuit board, and the top end of the electrical connector extends into the limiting groove to limit the displacement of the electrical connector in the width direction of the cover plate.
2. The anti-displacement fixture for surface mount electrical connectors according to claim 1, characterized in that, In the width direction of the cover plate, the single-sided gap between the outer wall of the electrical connector and the inner wall of the limiting groove ranges from 0.1 to 0.3 mm.
3. A fixture for preventing misalignment of electrical connectors for surface mount assembly according to claim 2, characterized in that, In the width direction of the cover plate, the single-sided gap between the outer wall of the electrical connector and the inner wall of the limiting groove is 0.2 mm.
4. The anti-displacement fixture for surface mount electrical connectors according to claim 1, characterized in that, The carrier is provided with a plurality of placement slots along the length of the cover plate; The cover plate is provided with a plurality of limiting grooves along the length of the cover plate, and the plurality of limiting grooves are provided in a one-to-one correspondence with the plurality of placement grooves.
5. A fixture for preventing misalignment of an electrical connector used in surface mount assembly according to claim 4, characterized in that, Multiple limiting grooves are connected to form a through groove that extends through the cover plate along its length.
6. A fixture for preventing misalignment of an electrical connector used in surface mount assembly according to claim 5, characterized in that, The cover plate is also provided with a clearance groove on the side facing the vehicle, which communicates with the limiting groove. The clearance groove is larger in the width direction of the cover plate than the limiting groove is in the width direction of the cover plate.
7. A fixture for preventing misalignment of an electrical connector for surface mount according to any one of claims 1-6, characterized in that, The vehicle is provided with multiple first positioning parts at both ends along its length. The cover plate is provided with a plurality of second positioning parts at both ends along the length direction, and the plurality of second positioning parts correspond one-to-one with the plurality of first positioning parts and fit tightly together.
8. A fixture for preventing misalignment of an electrical connector used in surface mount assembly according to claim 7, characterized in that, The cover plate has two first connecting parts at one end along its length and two second connecting parts at the other end. The two first connecting portions are located on both sides of the cover plate along the width direction and extend along the width direction of the cover plate; The two second connecting portions are located on both sides of the cover plate along the width direction and extend along the width direction of the cover plate; The first connecting part and the second connecting part are respectively provided with the second positioning part.
9. A fixture for preventing misalignment of an electrical connector used in surface mount assembly according to claim 7, characterized in that, The first positioning part is a positioning hole or positioning post provided on the carrier; The second positioning part is a positioning post or positioning hole provided on the cover plate.
10. A fixture for preventing misalignment of an electrical connector used in surface mount assembly according to claim 1, characterized in that, The electrical connector is a Type-C connector.