Board end connector, circuit board assembly, and carrier

Abstract

The utility model relates to the technical field of electric connector discloses a board end connector, circuit board assembly and carrier, this board end connector includes: connecting terminal, has first connecting part and second connecting part, shell main part has accommodating cavity, and connecting terminal is located in accommodating cavity, and first connecting part is detachably connected with shell main body, terminal fixed base is buckled in accommodating cavity along the first direction, and second connecting part is detachably connected with terminal fixed base and is penetrated to the outside of terminal fixed base, locking mechanism is used for locking or unlocking terminal fixed base and shell main body. By adding terminal fixed base, and making it form the cooperation with locking mechanism, the locking / unlocking switching of terminal fixed base and shell main body can be realized flexibly, not only greatly simplifies the dismounting process of board end connecting terminal, provides the convenience for the later maintenance replacement work, can effectively reduce the product failure rate and maintenance cost, and simultaneously significantly improves the operation efficiency and operation convenience.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, specifically to a board-end connector, a circuit board assembly, and a carrier. Background Technology

[0002] Board-end connectors, as an important category of connectors, primarily function to achieve reliable connections between internal and external circuits on a circuit board. Given the typically complex layout of internal circuits on circuit boards, the application of board-end connectors can significantly improve connection efficiency while reducing the error rate and risk of circuit damage during manual operation.

[0003] Currently, common types of board-end connectors include SMT (Surface Mount Technology) soldered connectors and DIP (Dual In-line Package) through-hole soldered connectors. The core structure of these two types of board-end connectors includes a plastic housing and connecting terminals, where the connecting terminals form a stable and fixed connection with the plastic housing through integral injection molding or interference snap-fit.

[0004] However, board-end connectors have significant limitations after assembly, as their connection terminals are not easily disassembled. Forced disassembly can easily damage the connector or even render it unusable, increasing maintenance costs and causing considerable inconvenience to actual operation and use. Utility Model Content

[0005] This utility model provides a board-end connector, circuit board assembly, and carrier to solve or improve the problems in related technologies, such as the difficulty in disassembling the connection terminals of board-end connectors, the easy damage and scrapping of connectors, increased maintenance costs, and inconvenience in actual operation and use.

[0006] In a first aspect, this utility model provides a board-end connector, comprising: A connecting terminal having a first connecting portion and a second connecting portion; The housing body has a receiving cavity, the connecting terminal is located in the receiving cavity, and the first connecting part is detachably connected to the housing body; A terminal fixing seat is slidably fastened in the receiving cavity along a first direction, and the second connecting part is detachably connected to the terminal fixing seat and extends through the outside of the terminal fixing seat; A locking mechanism is used to lock or unlock the terminal fixing seat and the housing body.

[0007] In one optional embodiment, the locking mechanism includes: The terminal fixing base and the housing body are provided with a matching hook and a slot, respectively. The hook and the slot are engaged or disengaged to lock or unlock the terminal fixing base and the housing body.

[0008] In one optional embodiment, there are at least two hook portions, which are respectively disposed on both sides of the terminal fixing seat; the slots correspond one-to-one with the hook portions, the slots are disposed on the side wall of the housing body, and the slots communicate with the interior of the receiving cavity and the exterior of the housing body in a third direction; And / or, the terminal fixing base includes a first cover plate that closes a first opening of the receiving cavity in a second direction, a cantilever provided on a side portion of the first cover plate in a third direction that extends in the first direction, a gap between the cantilever and the first cover plate, and a hook portion provided on the cantilever.

[0009] In one optional embodiment, one of the terminal holder and the housing body is provided with a guide member, and the other is provided with a guide groove, the guide groove extending along the first direction, and the guide member sliding along the guide groove.

[0010] In one optional embodiment, the receiving cavity has a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall, wherein the first sidewall and the second sidewall are disposed opposite each other along a third direction; the third sidewall is connected between the first sidewall and the second sidewall and is disposed toward the first direction; the fourth sidewall is connected between the first sidewall and the second sidewall and is disposed toward a second direction; the guide groove is formed at the corner of the first sidewall and the fourth sidewall, and / or, the guide groove is formed at the corner of the second sidewall and the fourth sidewall; And / or, the terminal holder includes a second cover plate that closes a second opening of the receiving cavity along the first direction, and the guide is disposed on the second cover plate.

[0011] In one optional embodiment, the sidewall of the receiving cavity is provided with a second opening along the first direction, and one of the edge of the second opening and the terminal fixing seat is provided with a limiting member and the other is provided with a limiting groove, the limiting member being inserted into the limiting groove.

[0012] In one optional embodiment, the limiting groove connects the interior of the receiving cavity and the exterior of the housing body along the first direction, and the limiting groove has a first limiting surface facing a second direction and a second limiting surface facing a third direction. The edge of the second opening is also provided with a connecting groove, which connects the limiting groove and the second opening along the second direction, and in the third direction, the size of the limiting groove is larger than the size of the connecting groove; The limiting member includes a snap-fit ​​part and a connecting part. The shape of the snap-fit ​​part is adapted to the shape of the limiting groove. The two ends of the connecting part are respectively connected to the snap-fit ​​part and the terminal fixing seat. The shape of the connecting part is adapted to the shape of the limiting groove.

[0013] In one optional embodiment, the terminal fixing seat has a receiving groove on the side facing the receiving cavity, and a clearance through hole communicating with the receiving groove on the side of the terminal fixing seat away from the receiving cavity. The second connecting part passes through the receiving groove and extends out of the clearance through hole, and a limiting rib is provided in the receiving groove. And / or, the end of the limiting rib is provided with an inclined guide portion.

[0014] Secondly, this utility model also provides a circuit board assembly, comprising: Circuit board; The board-end connector as described in any of the above claims is electrically connected to the circuit board.

[0015] Thirdly, this utility model also provides a carrier, including the circuit board assembly described above.

[0016] The board-end connector provided by this utility model, by adding a terminal fixing seat and making it work in conjunction with the locking mechanism, can flexibly realize the locking / unlocking switching between the terminal fixing seat and the housing body. This not only greatly simplifies the disassembly and assembly process of the board-end connection terminal and provides convenience for later maintenance and replacement work, but also effectively reduces the product defect rate and maintenance costs, while significantly improving work efficiency and ease of operation. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the board-end connector according to an embodiment of the present utility model; Figure 2 This is an exploded view of the board-end connector according to an embodiment of the present utility model; Figure 3 This is a schematic diagram showing the fit between the housing body and the connecting terminal in an embodiment of this utility model; Figure 4 This is a schematic diagram of the structure of the shell body according to an embodiment of the present utility model; Figure 5This is one of the structural schematic diagrams of the terminal fixing base according to an embodiment of the present utility model; Figure 6 This is a second structural schematic diagram of the terminal fixing base according to an embodiment of the present utility model; Figure 7 This is a partially enlarged schematic diagram of the receiving groove according to an embodiment of the present utility model; Figure 8 This is a partially enlarged schematic diagram of the limiting member according to an embodiment of the present utility model; Figure 9 This is a partially enlarged schematic diagram of the limiting groove according to an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures: 1. Connecting terminal; 101. First connecting part; 102. Second connecting part; 2. Housing body; 201. Receiving cavity; 2011. First side wall; 2012. Second side wall; 2013. Third side wall; 2014. Fourth side wall; 202. First opening; 203. Second opening; 3. Terminal fixing seat; 301. First cover plate; 302. Cantilever; 303. Second cover plate; 304. Receiving groove; 305. Clearance through hole; 306. Limiting rib; 307. Inclined guide part; 4. Locking mechanism; 401. Hook part; 402. Slot; 5. Gap; 6. Guide member; 7. Guide groove; 8. Limiting member; 801. Snap-fit ​​part; 802. Connecting part; 9. Limiting groove; 901. First limiting surface; 902. Second limiting surface; 10. Connecting groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and 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 of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] The following is combined Figures 1 to 9 This describes the board-end connector, circuit board assembly, and carrier according to embodiments of the present invention.

[0025] According to an embodiment of the present invention, in a first aspect, a board-end connector is provided, including a connecting terminal 1, a housing body 2, a terminal fixing seat 3, and a locking mechanism 4. Specifically, as Figure 2As shown, the connecting terminal 1 has a first connecting portion 101 and a second connecting portion 102. It should be noted that the type and quantity of the connecting terminal 1 can be determined according to actual design requirements. For example... Figure 3 As shown, the housing body 2 has a receiving cavity 201, the connecting terminal 1 is located in the receiving cavity 201, and the first connecting part 101 is detachably connected to the housing body 2. Optionally, the first connecting part 101 and the housing body 2 can be detachably connected by means of snap-fit ​​connection, plug-in connection, etc., to meet the needs of flexible assembly and disassembly.

[0026] like Figure 1 As shown, the terminal fixing base 3 is slidably engaged in the receiving cavity 201 along the first direction, and the second connecting part 102 is detachably connected to the terminal fixing base 3 and extends through the outside of the terminal fixing base 3. Optionally, the second connecting part 102 and the terminal fixing base 3 can be detachably connected by means of plug-in connection, snap-on connection, etc., which is convenient to operate and reliable in connection.

[0027] like Figure 1 As shown, the locking mechanism 4 is used to lock or unlock the terminal holder 3 and the housing body 2. In the locked state, the mechanism provides reliable positioning constraint for the terminal holder 3, effectively preventing loosening of the connection due to equipment vibration, external force collision or environmental interference, ensuring the relative position stability between the terminal holder 3 and the housing body 2, and guaranteeing the reliability of signal transmission / current conduction of the board-end connection terminal 1. When it is necessary to repair or replace the board-end connection terminal 1, the constraint on the terminal holder 3 can be quickly released by operating the locking mechanism 4, allowing the terminal holder 3 to be smoothly removed from the housing body 2, reducing the risk of component damage caused by forced removal, and indirectly improving the overall service life and maintenance economy of the product.

[0028] This configuration, by adding a terminal fixing seat 3 and having it work in conjunction with the locking mechanism 4, allows for flexible switching between locking and unlocking of the terminal fixing seat 3 and the housing body 2. This not only greatly simplifies the disassembly and assembly process of the board-end connection terminal 1 and provides convenience for later maintenance and replacement work, but also effectively reduces product defect rate and maintenance costs, while significantly improving work efficiency and ease of operation.

[0029] Optionally, in some embodiments of this utility model, see Figures 3 to 5 As shown, the fixing mechanism includes a matching hook portion 401 and a slot 402. One of the terminal fixing base 3 and the housing body 2 is provided with the hook portion 401, and the other is provided with the slot 402. That is, the terminal fixing base 3 is provided with the hook portion 401, and the housing body 2 is correspondingly provided with the slot 402; or, the housing body 2 is provided with the hook portion 401, and the terminal fixing base 3 is correspondingly provided with the slot 402. For example, as... Figure 3As shown, in the main body 2 of the housing, the side wall of the receiving cavity 201 is provided with a slot 402, such as... Figure 5 As shown, the side of the terminal holder 3 is provided with a corresponding hook portion 401. The hook portion 401 engages or disengages with the slot 402 to lock or unlock the terminal holder 3 and the housing body 2. Specifically, during installation, the terminal holder 3 is slid along the first direction until the hook portion 401 and the slot 402 precisely engage to reliably lock the two together and ensure connection stability. During disassembly, the hook portion 401 is disengaged from the slot 402, allowing the terminal holder 3 to be pulled out for replacement of the connecting terminal 1.

[0030] This design eliminates the need for complex tools or damage to the original structure, significantly simplifying the disassembly and assembly process, facilitating later maintenance, reducing the risk of component damage from forced disassembly, extending product lifespan, improving maintenance cost-effectiveness, and lowering long-term operating costs. Of course, in other embodiments, the locking mechanism 4 can also employ a positioning pin hole structure, specifically, by inserting and removing the positioning pin, the terminal fixing seat 3 and the housing body 2 can be locked or unlocked.

[0031] Optionally, in some embodiments of this utility model, such as Figure 5 As shown, there are at least two hook portions 401, and they are respectively provided on both sides of the terminal fixing base 3. Figure 3 As shown, the slots 402 and hooks 401 correspond one-to-one. The slots 402 are disposed on the side wall of the housing body 2, and the slots 402 connect the interior of the receiving cavity 201 and the exterior of the housing body 2 in a third direction. It should be noted that the number of hooks 401 and slots 402 can be determined according to actual design requirements, for example, two sets can be set accordingly.

[0032] This design, with multiple sets of symmetrically distributed locking structures on both sides, ensures that the connection force between the terminal fixing seat 3 and the housing body 2 is evenly distributed along both sides of the fixing seat, avoiding offset and loosening caused by unilateral force, improving locking stability, and ensuring the reliability of signal / current transmission of the board-end connection terminal 1. Furthermore, compared to a single-sided or single-set locking design, the multiple sets of structures on both sides can distribute the locking force and the force exerted during assembly and disassembly to each locking unit, reducing the load-bearing pressure on a single hook portion 401 / slot 402, reducing component fatigue damage, extending its service life, and reducing replacement costs.

[0033] Optionally, in some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, the terminal fixing base 3 includes a first cover plate 301, which closes the first opening 202 of the receiving cavity 201 along the second direction. Figure 5As shown, a cantilever 302 is provided on the side of the first cover plate 301 along the third direction. The cantilever 302 extends along the first direction, and there is a gap 5 between the cantilever 302 and the first cover plate 301. A hook portion 401 is provided on the cantilever 302.

[0034] This design creates a suspended hook structure, providing sufficient deformation space for the hook portion 401. During installation or disassembly, the hook portion 401 can undergo slight elastic deformation towards the inner side of the terminal fixing seat 3 via the gap 5, ensuring smooth engagement / disengagement between the hook portion 401 and the slot 402. This reduces operational resistance, making the assembly and disassembly process easier and smoother, directly improving operational convenience. Furthermore, the gap 5 acts as an "error buffer," accommodating manufacturing errors and preventing assembly problems such as incomplete installation or loose locking caused by accumulated tolerances, thereby improving production assembly efficiency and product qualification rate.

[0035] Optionally, in some embodiments of this utility model, see Figures 3 to 5 As shown, one of the terminal holder 3 and the housing body 2 is provided with a guide member 6, and the other is provided with a guide groove 7. That is, the terminal holder 3 is provided with a guide member 6, and the housing body 2 is provided with a corresponding guide groove 7; or, the housing body 2 is provided with a guide member 6, and the terminal holder 3 is provided with a corresponding guide groove 7. For example, as Figure 3 As shown, in the main body 2 of the housing, the side wall of the receiving cavity 201 is provided with a guide groove 7, such as... Figure 5 As shown, the terminal holder 3 is provided with a guide member 6. The guide groove 7 extends along the first direction, and the guide member 6 slides along the guide groove 7. With this configuration, the guide groove 7 extends along the first direction (i.e., the disassembly and assembly direction of the terminal holder 3), which provides a certain movement path constraint for the guide member 6, avoids tilting or offset caused by operational deviations, and thus ensures the positional accuracy of the connected terminal 1, greatly improves assembly efficiency, and significantly reduces operational intensity.

[0036] Optionally, in some embodiments of this utility model, such as Figure 4 and Figure 5 As shown, the receiving cavity 201 has a first sidewall 2011, a second sidewall 2012, a third sidewall 2013, and a fourth sidewall 2014. The first sidewall 2011 and the second sidewall 2012 are disposed opposite each other along a third direction. The third sidewall 2013 connects the first sidewall 2011 and the second sidewall 2012 and is disposed towards a first direction. The fourth sidewall 2014 connects the first sidewall 2011 and the second sidewall 2012 and is disposed towards a second direction. A guide groove 7 is formed at the corner of the first sidewall 2011 and the fourth sidewall 2014, and / or, the guide groove 7 is formed at the corner of the second sidewall 2012 and the fourth sidewall 2014. Optionally, as... Figure 4As shown, guide grooves 7 are formed at the corners of the first sidewall 2011 and the fourth sidewall 2014, and at the corners of the second sidewall 2012 and the fourth sidewall 2014, respectively, and guide members 6 are provided in a one-to-one correspondence with guide grooves 7. Optionally, as shown... Figure 4 and Figure 5 As shown, the terminal fixing base 3 includes a second cover plate 303, which closes the second opening 203 of the receiving cavity 201 along the first direction. A guide member 6 is disposed on the second cover plate 303. It should be noted that, as... Figure 4 As shown, the second opening 203 is connected to the first opening 202.

[0037] This configuration, with guide structures on both sides, provides dual-sided positioning constraints for the sliding of the terminal fixing seat 3, effectively preventing assembly misalignment and ensuring efficient docking of the locking mechanism 4. It also makes the sliding trajectory of the terminal fixing seat 3 smoother, reducing frictional interference with the sidewall of the receiving cavity 201, lowering operating resistance, preventing sliding jamming, and optimizing the ease of assembly and disassembly.

[0038] Optionally, in some embodiments of this utility model, such as Figure 4 As shown, the side wall of the receiving cavity 201 has a second opening 203 along the first direction. One of the edges of the second opening 203 and the terminal fixing seat 3 is provided with a limiting member 8, and the other is provided with a limiting groove 9, with the limiting member 8 inserted into the limiting groove 9. That is, the edge of the second opening 203 is provided with a limiting member 8, and the terminal fixing seat 3 is correspondingly provided with a limiting groove 9; or, the terminal fixing seat 3 is provided with a limiting member 8, and the edge of the second opening 203 is correspondingly provided with a limiting groove 9. For example, as... Figure 4 As shown, the edge of the second opening 203 is provided with a limiting groove 9, such as... Figure 5 As shown, the terminal fixing base 3 is provided with a limiting member 8. During installation, when the terminal fixing base 3 slides into place along the first direction, the hook part 401 engages with the slot 402, and the limiting member 8 is inserted into the limiting slot 9.

[0039] With this configuration, the side wall of the receiving cavity 201 has a second opening 203, which provides a direct operating channel for the installation and removal of the connecting terminal 1, greatly simplifying the disassembly and assembly process. At the same time, the limiting member 8 and the limiting groove 9 work together to restrict the movement range of the terminal fixing seat 3 and prevent it from slipping off along the opening direction. This not only retains the ease of operation brought by the opening design, but also effectively ensures the stability and reliability of the connection between the terminal fixing seat 3 and the housing body 2.

[0040] Optionally, in some embodiments of this utility model, such as Figure 4 As shown, the limiting groove 9 connects the interior of the receiving cavity 201 and the exterior of the housing body 2 along the first direction. And as... Figure 9As shown, the limiting groove 9 has a first limiting surface 901 facing the second direction and a second limiting surface 902 facing the third direction. A connecting groove 10 is also provided along the edge of the second opening 203, connecting the limiting groove 9 and the second opening 203 along the second direction. In the third direction, the size of the limiting groove 9 is larger than the size of the connecting groove 10. Figure 8 As shown, the limiting member 8 includes a snap-fit ​​portion 801 and a connecting portion 802. The shape of the snap-fit ​​portion 801 is adapted to the shape of the limiting groove 9. The two ends of the connecting portion 802 are respectively connected to the snap-fit ​​portion 801 and the terminal fixing seat 3, and the shape of the connecting portion 802 is adapted to the shape of the limiting groove 9. Optionally, the limiting member 8 has a T-shaped structure. With this configuration, the limiting member 8 and the limiting groove 9 adopt a hook-and-loop design, which can reliably limit the displacement of the terminal fixing seat 3 along the second direction, thereby ensuring the stability of the connection between the terminal fixing seat 3 and the housing body 2.

[0041] Optionally, in some embodiments of this utility model, such as Figure 6 As shown, the terminal fixing base 3 has a receiving groove 304 on the side facing the receiving cavity 201, such as Figure 5 As shown, the terminal fixing base 3 has a clearance through hole 305 communicating with the receiving groove 304 on the side opposite to the receiving cavity 201. The second connecting part 102 passes through the receiving groove 304 and extends out of the clearance through hole 305. The receiving groove 304 is provided with a limiting rib 306. With this configuration, the limiting rib 306 on the inner wall of the receiving groove 304 can form a close fit constraint with the outer wall of the connecting terminal 1, effectively preventing the connecting terminal 1 from tilting during insertion and removal, and ensuring the positional accuracy and docking stability of the connecting terminal 1 after installation. At the same time, the limiting rib 306 can also serve as a structural reinforcement for the corresponding installation area of ​​the receiving groove 304, enhancing the deformation resistance of this part, avoiding local deformation of the receiving groove 304 caused by long-term insertion and removal stress, further ensuring the overall structural stability and service life of the product, and improving the reliability of product quality.

[0042] Alternatively, in some embodiments, such as Figure 7 As shown, there are at least two limiting ribs 306, which are spaced apart circumferentially along the receiving groove 304. It should be noted that the number of limiting ribs 306 can be determined according to actual design requirements. This allows for multi-directional enclosure constraint from different circumferential positions of the connecting terminal 1, preventing misalignment of the connecting terminal 1, enhancing positioning accuracy, ensuring connection reliability, and the multiple sets of limiting ribs 306 spaced apart circumferentially form multiple points of rigid support on the inner wall of the receiving groove 304, strengthening the deformation resistance of the receiving groove 304 and improving product stability.

[0043] Optionally, in some embodiments of this utility model, such as Figure 7As shown, the end of the limiting rib 306 is provided with an inclined guide portion 307. This configuration forms an inclined transition structure at the end of the limiting rib 306, providing a guide channel for the insertion / removal of the connecting terminal 1, guiding the connecting terminal 1 to be inserted and removed smoothly, greatly reducing assembly resistance and operation difficulty, extending its service life, and reducing maintenance and replacement costs.

[0044] According to an embodiment of the present invention, in a second aspect, a circuit board assembly is also provided, including a circuit board and a board-end connector, wherein the board-end connector is the board-end connector as described in the above embodiments, and the board-end connector is electrically connected to the circuit board. Optionally, the circuit board can be a PCB (Printed Circuit Board). The derivation process of this beneficial effect is roughly similar to the derivation process of the beneficial effect of the board-end connector described above, and therefore will not be repeated here.

[0045] According to an embodiment of the present invention, in a third aspect, a carrier is also provided, including the circuit board assembly as described in the above embodiments. Optionally, the carrier is a vehicle, a low-altitude aircraft, etc. The derivation process of this beneficial effect is roughly similar to the derivation process of the beneficial effect of the circuit board assembly described above, and therefore will not be repeated here.

[0046] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A board-end connector, characterized in that, include: The connecting terminal (1) has a first connecting part (101) and a second connecting part (102); The housing body (2) has a receiving cavity (201), the connecting terminal (1) is located in the receiving cavity (201), and the first connecting part (101) is detachably connected to the housing body (2); The terminal fixing seat (3) is slidably fastened in the receiving cavity (201) along the first direction, and the second connecting part (102) is detachably connected to the terminal fixing seat (3) and extends through the outside of the terminal fixing seat (3); The locking mechanism (4) is used to lock or unlock the terminal fixing seat (3) and the housing body (2).

2. The board-end connector according to claim 1, characterized in that, The locking mechanism (4) includes: The terminal fixing seat (3) and the housing body (2) are provided with a matching hook part (401) and a slot (402). The hook part (401) and the slot (402) are engaged or disengaged to lock or unlock the terminal fixing seat (3) and the housing body (2).

3. The board-end connector according to claim 2, characterized in that, There are at least two hook portions (401), which are respectively disposed on both sides of the terminal fixing seat (3); the slots (402) correspond one-to-one with the hook portions (401), the slots (402) are disposed on the side wall of the housing body (2), and the slots (402) communicate with the interior of the receiving cavity (201) and the exterior of the housing body (2) in a third direction; And / or, the terminal fixing seat (3) includes a first cover plate (301) that closes a first opening (202) of the receiving cavity (201) in a second direction, and a cantilever (302) is provided on the side of the first cover plate (301) in the third direction, the cantilever (302) extending in the first direction, and a gap (5) between the cantilever (302) and the first cover plate (301), and the hook portion (401) is provided on the cantilever (302).

4. The board-end connector according to any one of claims 1 to 3, characterized in that, One of the terminal fixing base (3) and the housing body (2) is provided with a guide member (6), and the other is provided with a guide groove (7). The guide groove (7) extends along the first direction, and the guide member (6) slides along the guide groove (7).

5. The board-end connector according to claim 4, characterized in that, The receiving cavity (201) has a first sidewall (2011), a second sidewall (2012), a third sidewall (2013), and a fourth sidewall (2014). The first sidewall (2011) and the second sidewall (2012) are arranged opposite each other along a third direction. The third sidewall (2013) is connected between the first sidewall (2011) and the second sidewall (2012) and is arranged towards the first direction. The fourth sidewall (2014) is connected between the first sidewall (2011) and the second sidewall (2012) and is arranged towards a second direction. The guide groove (7) is formed at the corner of the first sidewall (2011) and the fourth sidewall (2014), and / or, the guide groove (7) is formed at the corner of the second sidewall (2012) and the fourth sidewall (2014). And / or, the terminal holder (3) includes a second cover plate (303) that closes the second opening (203) of the receiving cavity (201) along the first direction, and the guide (6) is disposed on the second cover plate (303).

6. The board-end connector according to any one of claims 1 to 3, characterized in that, The side wall of the receiving cavity (201) is provided with a second opening (203) along the first direction. One of the edge of the second opening (203) and the terminal fixing seat (3) is provided with a limiting member (8), and the other is provided with a limiting groove (9). The limiting member (8) is inserted into the limiting groove (9).

7. The board-end connector according to claim 6, characterized in that, The limiting groove (9) connects the interior of the receiving cavity (201) and the exterior of the housing body (2) along the first direction, and the limiting groove (9) has a first limiting surface (901) facing the second direction and a second limiting surface (902) facing the third direction. The edge of the second opening (203) is also provided with a connecting groove (10), which connects the limiting groove (9) and the second opening (203) along the second direction, and in the third direction, the size of the limiting groove (9) is larger than the size of the connecting groove (10); The limiting member (8) includes a snap-fit ​​part (801) and a connecting part (802). The shape of the snap-fit ​​part (801) is adapted to the shape of the limiting groove (9). The two ends of the connecting part (802) are respectively connected to the snap-fit ​​part (801) and the terminal fixing seat (3). The shape of the connecting part (802) is adapted to the shape of the limiting groove (9).

8. The board-end connector according to any one of claims 1 to 3, characterized in that, The terminal fixing seat (3) has a receiving groove (304) on the side facing the receiving cavity (201), and a clearance through hole (305) communicating with the receiving groove (304) on the side away from the receiving cavity (201). The second connecting part (102) passes through the receiving groove (304) and extends out of the clearance through hole (305). The receiving groove (304) is provided with a limiting rib (306). And / or, the end of the limiting rib (306) is provided with an inclined guide portion (307).

9. A circuit board assembly, characterized in that, include: Circuit board; The board-end connector as described in any one of claims 1 to 8 is electrically connected to the circuit board.

10. A vehicle, characterized in that, Includes the circuit board assembly as described in claim 9.

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