A segmented short-circuit protection connection terminal

Abstract

This invention discloses a segmented short-circuit protection connection terminal, relating to the field of connection terminal technology. It includes a connector lower housing, with a connector flip cover rotatably connected to the upper surface of the lower housing. A flexible flat cable is inserted between the connector flip cover and the front side of the lower housing. Terminal bodies are evenly spaced and inserted into the rear side of the lower housing. Fixing brackets are fixedly connected to both the upper and lower rear sides of the lower housing. This segmented short-circuit protection connection terminal features a cross-shaped pre-break protrusion integrated into the side wall of the terminal body. The pre-break groove precisely divides the connecting metal wire into four equal-length conductive units. Compared to the traditional straight-through pre-break design, the cross-shaped layout forms a physical isolation barrier, shortening the effective length of the material and preventing short circuits caused by excessively long metal wires. The dividing strips on the inner side of the partition mechanically shear the wires through shear stress, preventing overlap due to excessive wire length.

Description

Technical Field

[0001] This invention relates to the field of connection terminal technology, specifically a segmented short-circuit protection connection terminal. Background Technology

[0002] Connecting terminals are components used in the electrical and electronic fields to achieve reliable connections between wires or cables and equipment, circuit boards, or other conductors. Their core function is to secure wires mechanically or electrically, ensuring efficient and safe transmission of current or signals. They typically consist of conductive metal parts (such as copper or aluminum) and insulating shells (plastic, ceramic, etc.). The conductive parts are designed in fork, ring, or spring shapes to accommodate different wire types and connection requirements.

[0003] Existing technology 1 (Chinese patent with announcement number CN115776007A and announcement date of 2023-03-10) discloses a connection terminal and a connector using the connection terminal. The connection terminal is a power terminal. The connection terminal includes a crossarm, with multiple conductive plates extending from one long side of the crossarm. The length of the conductive plate in the middle is greater than the length of the conductive plates on both sides. The lengths of the conductive plates on both sides are the same. The connection terminal can prevent the interference of electric arc during the insertion and removal process, improve the reliability and service life of the product, and enable high current power transmission when the connection terminal is installed in the connector. There is also prior art 2 (Chinese patent CN102738623B, published on 2014-10-22), which is a connector connection terminal that can reduce the manufacturing cost of connectors and probes and prevent incorrect contact between the connection terminal and the continuous inspection pins during continuous inspection. The connector connection terminal includes: a fixing member to be fixed to the connector base; a connecting portion extending upward from the fixing member; and a movable member extending from the connecting portion in a direction facing the fixing member. The connector connection terminals are arranged side by side in the base. The connector connection terminal also includes: an extension portion provided at the end of the fixing member for continuous inspection; and a protrusion provided on the upper side of the movable member or the connecting portion for continuous inspection.

[0004] While existing technologies can improve product reliability and lifespan, in the 3C connector industry, the stamping of pre-broken metal wires is the most difficult problem to solve. Metal overlap at the pre-broken positions of adjacent terminals can cause short circuits, ultimately leading to functional failure, and in severe cases, burn-out.

[0005] Therefore, we propose a segmented short-circuit protection terminal to solve the problems mentioned above. Summary of the Invention

[0006] The purpose of this invention is to provide a segmented short-circuit protection connection terminal to solve the problem mentioned in the background art. In the current 3C connector industry, the most difficult problem to handle is the stamping of pre-broken metal wires. The metal overlap at the pre-broken positions of adjacent terminals causes a short circuit, which ultimately leads to functional failure and, in severe cases, burns out the device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a segmented short-circuit protection connection terminal, comprising a connector lower housing, a connector flip cover rotatably connected to the upper surface of the connector lower housing, a flexible flat cable inserted between the connector flip cover and the front side of the connector lower housing, and terminal bodies equally spaced and inserted on the rear side of the connector lower housing. Fixing frames are fixedly connected to both the upper and lower rear sides of the connector lower housing, and a sliding pull plate is slidably connected inside the fixing frame. A mating plate is slidably connected between the inner side of the sliding pull plate and the connector lower housing. A limiting mechanism is provided between the mating plate and the sliding pull plate. The limiting mechanism achieves stable mating of the mating plate by moving the sliding pull plate, thereby preventing the terminal body from detaching. A short-circuit protection mechanism is also provided between the inner side of the mating plate and the outer side of the terminal body. The short-circuit protection mechanism achieves short-circuit protection by segmenting the metal wire.

[0008] Preferably, the limiting mechanism includes connecting protrusions, which are precisely fixedly connected to the lower surface of the sliding plate at equal intervals. The sliding plate has a "T"-shaped structure in its side profile, and an arc-shaped protrusion structure is provided on the outer side of the sliding plate to facilitate pulling.

[0009] Preferably, the inner end of the mating plate has auxiliary sliding grooves evenly spaced on both the upper and lower surfaces, and the number of auxiliary sliding grooves corresponds one-to-one with the number of connecting protrusions. The auxiliary sliding grooves are inclined from the end side towards the inner side of the mating plate, and the inner end side of the auxiliary sliding grooves slides in the opposite direction to the sliding pull plate.

[0010] Preferably, when the sliding plate slides outward, the connecting protrusion is located on the outer end side of the auxiliary slide groove, and when the sliding plate slides inward, the connecting protrusion is located on the inner end side of the auxiliary slide groove.

[0011] Preferably, a fixing plate is fixedly connected to the outer side of the mating plate, and two sets of fixing plates are provided on the upper and lower sides of the outer side of the mating plate. Springs are fixedly connected at equal intervals on the inner side of the fixing plate, and the other end of the springs is fixedly connected to an anti-detachment top plate for resisting the terminal body.

[0012] Preferably, the two sets of anti-detachment top plates are located on the upper and lower sides of the outer side of the terminal body, and the anti-detachment top plates form an elastic structure with the fixing plate through springs, and the inner side of the anti-detachment top plates is in contact with the outer side of the terminal body.

[0013] Preferably, the short-circuit protection mechanism includes a pre-break protrusion, which is disposed in the middle of the outer end side of the terminal body and is arranged in a "+" shape. The pre-break protrusion can shorten the material pulling length.

[0014] Preferably, a partition plate is fixedly connected to the middle of the outer side of the docking plate, and the partition plate has a rectangular array of partition grooves that are hollowed out, and a dividing strip is fixedly connected to the center of the partition plate.

[0015] Preferably, the dividing strip is arranged in an arc shape on both sides when viewed from the side downwards, and the tip of the dividing strip is set towards the center of the cross-shaped pre-broken protrusion. The height of the dividing plate is the same as the height of the pre-broken protrusion.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the side wall of the terminal body is provided with a cross-shaped pre-cutting protrusion, which can shorten the effective length of the material pulling and avoid short circuit caused by excessively long metal wires. During operation, the sliding pull plate slides stably, and the connecting protrusion and the auxiliary slide groove are dynamically and accurately aligned at the maximum stroke. Combined with the inner anti-detachment top plate, it achieves stable assembly. During the resetting process, the sliding pull plate drives the connecting protrusion to embed into the auxiliary slide groove. The inner end of the auxiliary slide groove has a closed stop structure to ensure the stability of the docking of the connecting plate. The anti-detachment top plate further limits the terminal body through the elastic potential of the spring to prevent the terminal body from loosening. The dividing strip achieves mechanical shearing through shear stress, effectively blocking the overlapping path of the metal wire.

[0017] The side wall of the terminal body is integrated with a cross-shaped pre-break protrusion. This structure uses a precision stamping process to form a bidirectional intersecting pre-break groove, which precisely divides the connecting metal wire into four equal-length conductive units. Compared with the traditional straight through-type pre-break design, the cross-shaped layout forms a physical isolation barrier, shortens the effective length of the material pulling, and avoids short circuits caused by excessively long metal wires.

[0018] When operating manually, pull the sliding plate outward. Its "T"-shaped cross-section structure slides stably along the guide rail of the fixed frame through a three-point contact mechanism. When the sliding plate is displaced to its maximum stroke, the connecting protrusions distributed at equal intervals on its inner side are precisely aligned with the entrance of the auxiliary slide groove. At this time, the mating plate can be nested into the inner side of the sliding plate without obstruction. After the mating plate is installed in place, the anti-detachment top plate set on its inner side can prevent the terminal body from becoming loose.

[0019] After the docking plates are docked, the operator pushes the sliding pull plate inward to reset it. At this time, the sliding pull plate slides precisely along the fixed frame through its "T"-shaped guide rail structure, driving the connecting protrusions that are evenly distributed on the inner side to simultaneously embed into the auxiliary sliding groove opened on the outer surface of the docking plate. The inner end of the auxiliary sliding groove forms a mechanical limit through the closed stop structure, which effectively constrains the axial displacement of the docking plate and prevents it from slipping and failing, thereby significantly improving the docking stability of the assembly structure.

[0020] The anti-detachment top plate applies axial compression force to the spring through mechanical transmission, causing the spring to generate elastic potential energy storage. Based on the elastic restoring characteristics of Hooke's law, the spring will generate a restoring force opposite to the compression direction. This restoring force is transmitted through dynamics to form a continuous pressing effect on the anti-detachment top plate, so that the contact interface between the anti-detachment top plate and the terminal body forms a dynamic pressure balance. By constructing a two-way limiting system through two sets of anti-detachment top plates arranged symmetrically, the stability of the terminal body docking assembly is improved.

[0021] The middle section of the mating plate integrates a partition plate with a hollow structure. The partition plate is located on the outer side of the pre-broken protrusion of the terminal body, which effectively suppresses the radial expansion trend of the metal wire. When an abnormal metal wire breaks through the primary protection, the dividing strip set on the inner side of the partition plate will mechanically cut it through shear stress, avoiding the phenomenon of overlapping due to excessive length of the metal wire. At the same time, the partition plate with a hollow structure can also maintain efficient heat exchange between the terminal body and the external environment. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0023] Figure 2 This is a schematic diagram of the three-dimensional rear view structure of the present invention;

[0024] Figure 3 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a three-dimensional structural diagram of the docking plate of the present invention in the detached state;

[0026] Figure 5 This is a schematic diagram of the assembly state of the docking plate and the sliding pull plate of the present invention;

[0027] Figure 6 This is a three-dimensional cross-sectional view of the present invention;

[0028] Figure 7 This is a schematic diagram of the three-dimensional structure of the sliding pull plate of the present invention;

[0029] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B;

[0030] Figure 9 This is a schematic diagram of the three-dimensional structure of the docking plate of the present invention;

[0031] Figure 10 For the present invention Figure 9 Enlarged structural diagram at point C;

[0032] Figure 11 This is a schematic diagram of the three-dimensional structure of the auxiliary chute of the present invention;

[0033] Figure 12 This is a schematic diagram of the three-dimensional structure of the anti-detachment roof plate of the present invention;

[0034] Figure 13 This is a schematic diagram of the three-dimensional structure of the pre-broken protrusion of the present invention.

[0035] In the diagram: 1. Connector lower housing; 2. Terminal body; 3. Fixing bracket; 4. Sliding pull plate; 5. Connecting protrusion; 6. Mating plate; 7. Auxiliary slide; 8. Divider plate; 9. Divider groove; 10. Fixing plate; 11. Spring; 12. Anti-detachment top plate; 13. Dividing strip; 14. Pre-break protrusion; 15. Connector flip cover. Detailed Implementation

[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Example 1: In the prior art, the pre-cut metal wire in stamping cannot be effectively processed. Metal overlap at the pre-cut positions of adjacent ends easily causes short circuits, ultimately leading to functional failure. To solve this problem, this application provides a cross-shaped pre-cut protrusion 14, which can effectively shorten the effective length of the material being pulled, avoiding short circuits caused by excessively long metal wires. Figure 1 , Figure 2 , Figure 12 and Figure 13 The technical solution shown in the invention provides the following technical solution: a segmented short-circuit protection connection terminal, comprising: a connector lower housing 1, a connector flip cover 15 rotatably connected to the upper surface of the connector lower housing 1, and a flexible flat cable inserted between the connector flip cover 15 and the front side of the connector lower housing 1; and terminal bodies 2 are equally spaced and inserted into the rear side of the connector lower housing 1. A short-circuit protection mechanism is also provided between the inner side of the mating plate 6 and the outer side of the terminal body 2. The short-circuit protection mechanism achieves short-circuit protection by segmenting the metal wire. The short-circuit protection mechanism includes a pre-break protrusion 14. The pre-break protrusion 14 is located at the middle of the outer end of the terminal body 2, and the pre-break protrusion 14 is arranged in a "+" shape. The pre-break protrusion 14 can shorten the material pulling length. A partition plate 8 is fixedly connected to the middle of the outer side of the mating plate 6, and a partition groove 9 is provided on the partition plate 8 in a rectangular array to hollow out the partition plate 8. A dividing strip 13 is fixedly connected to the center of the partition plate 8. The dividing strip 13 is arranged in an arc shape on both sides when viewed from the side, and the tip of the dividing strip 13 is set towards the center of the "+" shape of the pre-break protrusion 14. The height of the partition plate 8 is the same as the height of the pre-break protrusion 14.

[0038] The side of the terminal body 2 is provided with a cross-shaped pre-break protrusion 14. The cross-shaped pre-break protrusion 14 divides the metal wire into two segments. Compared with the traditional straight-line pre-break protrusion in the industry, the length of the metal wire can be shortened, thereby avoiding the phenomenon that the metal wires of adjacent terminal bodies 2 overlap at the pre-break position, causing short circuits and failure of function. The middle section of the connecting plate 6 is also provided with a partition plate 8. The partition plate 8 is located outside the pre-break protrusion 14 on the terminal body 2. At the same time, the partition plate 8 is also provided with a partition groove 9. The partition groove 9 makes the partition plate 8 form a hollow structure. While ensuring the heat dissipation of the terminal body 2 from the outside, it can also block the pre-break protrusion 14 on the terminal body 2, thereby preventing the metal wires of the pre-break protrusion 14 from overlapping randomly. At the same time, the dividing strip 13 can cut the existing metal wires, further preventing the metal wires from overlapping due to being too long.

[0039] Example 2: In existing connectors, the terminal body 2 is not fixed after mating, making it prone to loosening and falling off, thus affecting the normal use of the connector. To solve this problem, this application provides a mating plate 6 for mating assembly, and uses the mating plate 6 to limit the assembled terminal body 2, such as... Figures 2-5 , Figures 7-11 The present invention provides the following technical solution: a segmented anti-short-circuit connection terminal, comprising: a fixing bracket 3 fixedly connected to both the upper and lower rear sides of the connector lower housing 1, and a sliding pull plate 4 slidably connected inside the fixing bracket 3; a mating plate 6 slidably connected between the inner side of the sliding pull plate 4 and the connector lower housing 1; a limiting mechanism provided between the mating plate 6 and the sliding pull plate 4; the limiting mechanism achieves stable mating of the mating plate 6 by moving the sliding pull plate 4, thereby preventing the terminal body 2 from detaching; the limiting mechanism includes connecting protrusions 5, which are precisely fixedly connected to the sliding pull plate at equal intervals. The lower surface of the sliding plate 4 is provided with a "T"-shaped structure in the side profile. The outer side of the sliding plate 4 is provided with an arc-shaped protrusion structure to facilitate its pulling. The inner end of the mating plate 6 has auxiliary sliding grooves 7 evenly spaced on both the upper and lower surfaces. The number of auxiliary sliding grooves 7 corresponds one-to-one with the number of connecting protrusions 5. The auxiliary sliding grooves 7 are inclined from the end side towards the inner side of the mating plate 6. At the same time, the inner end side of the auxiliary sliding groove 7 is opposite to the outward sliding direction of the sliding plate 4. When the sliding plate 4 slides outward, the connecting protrusion 5 is located on the outer end side of the auxiliary sliding groove 7. When the sliding plate 4 slides inward, the connecting protrusion 5 is located on the inner end side of the auxiliary sliding groove 7.

[0040] Manually pulling the sliding plate 4 outwards allows it to slide stably outwards along the inside of the fixing frame 3, utilizing its "T"-shaped structure design. Simultaneously, the connecting protrusions 5 fixed to its inner side move laterally. At this point, the connecting protrusions 5 correspond one-to-one with the outer entrances of the auxiliary grooves 7 on the outer surface of the sliding plate 4, allowing the mating plate 6 to be nested and mated into the inner side of the sliding plate 4 without obstruction. This completes the installation of the mating plate 6, facilitating the connection between the anti-detachment top plate 12 on the inner side of the mating plate 6 and the outer side of the terminal body 2. Side contact prevents the terminal body 2 from becoming loose. After the mating plates 6 are mated, the sliding pull plate 4 can be pushed inward to reset. At this time, the sliding pull plate 4 moving inward can simultaneously drive the connecting protrusion 5 set on its inner side to slide along the auxiliary slide groove 7 opened on the outer surface of the mating plate 6. This allows the connecting protrusion 5 to move to the inner side of the auxiliary slide groove 7. Since the inner end of the auxiliary slide groove 7 is not connected to the outer side, the connecting protrusion 5 and the auxiliary slide groove 7 work together to form a limiting mechanism, thereby preventing the mating plate 6 from slipping outward and further improving the stability of the mating of the mating plates 6.

[0041] Example 3: To further ensure the stability of the terminal body 2, this application discloses a spring 11. The spring 11, through its elastic restoring characteristic, continuously presses against the anti-detachment top plate 12, such as... Figure 6 and Figure 12 The present invention provides the following technical solution: a segmented anti-short-circuit connection terminal, wherein: a fixing plate 10 is fixedly connected to the outer side of the mating plug 6, and two sets of fixing plates 10 are provided on the upper and lower sides of the outer side of the mating plug 6, and springs 11 are fixedly connected at equal distances on the inner side of the fixing plate 10, and an anti-detachment top plate 12 for resisting the terminal body 2 is fixedly connected to the other end of the spring 11. The two sets of anti-detachment top plates 12 are respectively located on the upper and lower sides of the outer side of the terminal body 2, and the anti-detachment top plate 12 forms an elastic structure with the fixing plate 10 through the spring 11, and the inner side of the anti-detachment top plate 12 is in contact with the outer side of the terminal body 2.

[0042] When the docking plate 6 is docked, the anti-detachment top plate 12 forms a contact interface with the outer side of the terminal body 2, and can also apply pressure to the spring 11 at the same time, causing the spring 11 to undergo elastic deformation. At the same time, under its own elastic restoring tendency, the spring 11 can also apply a reaction force to the anti-detachment top plate 12, so that the anti-detachment top plate 12 can stably abut against the terminal body 2. The upper and lower anti-detachment top plates 12 can stably limit the terminal body 2 and block the outer side of the terminal body 2, thereby ensuring the stability of the docking assembly of the terminal body 2.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A segmented short-circuit protection connection terminal, comprising a connector lower housing (1), wherein a connector flip cover (15) is rotatably connected to the upper surface of the connector lower housing (1), and a flexible flat cable is inserted between the connector flip cover (15) and the front side of the connector lower housing (1), and terminal bodies (2) are arranged and inserted at equal intervals on the rear side of the connector lower housing (1), characterized in that, The lower housing (1) of the connector is fixedly connected to the upper and lower sides of the rear side with a fixed bracket (3), and a sliding pull plate (4) is slidably connected inside the fixed bracket (3). A mating plate (6) is slidably connected between the inner side of the sliding pull plate (4) and the lower housing (1) of the connector. A limit mechanism is provided between the mating plate (6) and the sliding pull plate (4). The limit mechanism realizes the stable mating of the mating plate (6) by the movement of the sliding pull plate (4), thereby preventing the terminal body (2) from detaching. A short-circuit protection mechanism is also provided between the inner side of the mating plate (6) and the outer side of the terminal body (2). The short-circuit protection mechanism realizes the short-circuit protection operation by segmenting the metal wire. The limiting mechanism includes connecting protrusions (5), which are precisely fixed to the lower surface of the sliding pull plate (4) at equal intervals. The sliding pull plate (4) is arranged in a "T" shape in the side profile, and the outer side of the sliding pull plate (4) is provided with an arc-shaped protrusion structure to facilitate its pulling. The inner end of the mating plate (6) is provided with auxiliary sliding grooves (7) at equal intervals on both the upper and lower surfaces. The number of auxiliary sliding grooves (7) corresponds one-to-one with the number of connecting protrusions (5). The auxiliary sliding grooves (7) are opened at an angle from the end side towards the inner side of the mating plate (6). 7) The inner end side slides outward in the opposite direction to the sliding pull plate (4). The anti-short circuit mechanism includes a pre-break protrusion (14). The pre-break protrusion (14) is located in the middle of the outer end side of the terminal body (2). The pre-break protrusion (14) is arranged in a "+" shape. The pre-break protrusion (14) can shorten the material pulling length. A partition plate (8) is fixedly connected to the middle of the outer side of the docking plate (6). A partition groove (9) is provided on the partition plate (8) in a rectangular array to hollow out the partition plate (8). A dividing strip (13) is fixedly connected to the center of the partition plate (8).

2. The segmented short-circuit protection connection terminal according to claim 1, characterized in that: When the sliding plate (4) slides outward, the connecting protrusion (5) is located on the outer end side of the auxiliary slide groove (7), and when the sliding plate (4) slides inward, the connecting protrusion (5) is located on the inner end side of the auxiliary slide groove (7).

3. A segmented short-circuit protection connection terminal according to claim 2, characterized in that: A fixing plate (10) is fixedly connected to the outer side of the docking plate (6), and two sets of fixing plates (10) are provided on the upper and lower sides of the outer side of the docking plate (6). Springs (11) are fixedly connected at equal distances on the inner side of the fixing plate (10), and an anti-detachment top plate (12) for resisting the terminal body (2) is fixedly connected to the other end of the spring (11).

4. A segmented short-circuit protection connection terminal according to claim 3, characterized in that: The two sets of anti-detachment top plates (12) are located on the upper and lower sides of the outer side of the terminal body (2), and the anti-detachment top plate (12) forms an elastic structure with the fixing plate (10) through the spring (11), and the inner side of the anti-detachment top plate (12) is in contact with the outer side of the terminal body (2).

5. A segmented short-circuit protection connection terminal according to claim 4, characterized in that: The dividing strip (13) is arranged in an arc shape on both sides when viewed from the side, and the tip of the dividing strip (13) is set towards the center of the cross shape of the pre-broken protrusion (14). The height of the dividing plate (8) is the same as the height of the pre-broken protrusion (14).

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