Anti-loose connection terminal

Abstract

The utility model relates to the technical field of electrical connector discloses a kind of anti-loose connection terminals, including two metal stamping forming connecting plate, one side of two the connecting plate is fixedly connected with the plug-in mechanism of metal stamping forming, another side of two the connecting plate is fixedly connected with the crimping mechanism of metal stamping forming;The plug-in mechanism includes two guide pieces, one side of two the guide piece is fixedly connected with fixed plate, the inner wall of the guide piece is provided with contact piece, the outer wall of the guide piece is fixedly connected with buckle piece, the bottom of the fixed plate is fixedly connected with packaging bump.The utility model in, by inserting pin into guide piece interior, make pin and contact piece form reliable contact, the existence of fixed plate lets two guide pieces be fixedly connected, the auxiliary cooperation of reinforcing plate and reinforcement plate further improves the stability and firmness of guide piece connection.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to an anti-loosening connection terminal. Background Technology

[0002] Electrical connections are often in dynamic environments. In industries such as industry, transportation, and aviation, connection terminals are subjected to multiple dynamic interferences over a long period of time. Road bumps when cars are driving, wheel-rail vibrations of rail transit, and mechanical operation of industrial equipment will subject threaded and plug-in connection components to alternating forces. Originally tight connections will gradually loosen, resulting in a loosening effect. Equipment start-up and shutdown and environmental temperature differences will cause stress changes in materials such as terminals, wires, and bases due to thermal expansion and contraction. Over time, this will lead to a decrease in contact pressure, such as elastic failure caused by metal fatigue, ultimately resulting in poor contact. In scenarios that require regular maintenance and plugging and unplugging, ordinary terminals will reduce clamping force due to repeated operations. At the same time, environmental factors such as humidity and corrosion will accelerate the wear or oxidation of connection components, indirectly increasing the risk of loosening. Therefore, anti-loosening connection terminals have emerged. The core working principle of anti-loosening connection terminals is to offset the damage to connection stability caused by dynamic interference such as vibration, temperature difference, and external force through structural design. It ensures the reliability of electrical and mechanical connections by limiting relative movement and maintaining contact pressure. On the one hand, it uses mechanical constraints, such as anti-loosening washers and locking ears, to lock the relative positions of components and prevent the accumulation of loosening. On the other hand, it enhances the interlocking force through shape matching, such as irregular cross-sections and barbs, rather than simply relying on friction, thereby maintaining connection stability in dynamic environments. While current anti-loosening connectors have indeed played a positive role in improving connection reliability and reducing loosening issues across the industry, effectively mitigating the risk of poor contact caused by vibration and temperature differences, their packaging and automated assembly processes have significant shortcomings in actual production. The lack of specialized positioning auxiliary structures makes the connectors prone to shifting, tilting, or even flipping during carrier tape or taping packaging. This leads to inaccurate alignment when automated equipment picks them up, resulting in frequent issues such as jamming and missing parts. This not only reduces assembly efficiency but also requires additional manual intervention for adjustment, increasing production costs and hindering their application in large-scale production. Therefore, an anti-loosening connector is proposed to address these issues. Utility Model Content

[0003] To overcome the above deficiencies, this utility model provides an anti-loosening connection terminal, which aims to improve the problem of the lack of a dedicated positioning auxiliary structure in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A non-loosening connection terminal includes two metal stamping connection plates, one side of the two connection plates is fixedly connected to a metal stamping insertion mechanism, and the other side of the two connection plates is fixedly connected to a metal stamping crimping mechanism. The insertion mechanism includes two guide plates, a fixing plate is fixedly connected to the adjacent side of the two guide plates, a contact piece is provided on the inner wall of the guide plate, a buckle piece is fixedly connected to the outer wall of the guide plate, a packaging protrusion is fixedly connected to the bottom of the fixing plate, and a reinforcing component is fixedly connected to the adjacent side of the two guide plates. Preferred configuration: Two metal stamping connecting plates, one side is a metal stamping insertion mechanism, and the other side is a metal stamping pressing mechanism. The insertion mechanism includes two guide plates, and there is a fixing plate on the adjacent side. The inner wall of the guide plate is provided with a contact plate, and the outer wall is provided with a buckle plate. The bottom of the fixing plate has packaging protrusions. The adjacent sides of the two guide plates are also provided with reinforcing components. The whole is formed by metal stamping. The layout of each component is compact, taking into account both connection stability and structural strength. The packaging protrusions can assist in positioning, and the reinforcing components enhance the anti-loosening ability after insertion. As a further description of the above technical solution: The pressing mechanism includes a pressing plate, with first pressing pieces fixedly connected to both sides of the pressing plate, and second pressing pieces fixedly connected to both sides of the pressing plate. The inner wall of the pressing plate has through holes. Preferably, the crimping mechanism includes a crimping plate with a first crimping piece and a second crimping piece distributed on both sides. The inner wall of the crimping plate has through holes. The components work together, and the first and second crimping pieces can fasten the wire insulation layer and the conductor in layers. The through holes enhance the mechanical strength of the crimping and ensure a stable wire connection. As a further description of the above technical solution: The reinforcement component includes a reinforcement plate, and a reinforcing plate is fixedly connected to one side of the guide plate; Preferred: The reinforcement component includes a reinforcement plate and a reinforcing plate on one side of the guide plate. The two work together to enhance the structural strength of the guide plate, improve its resistance to deformation during insertion, and further consolidate the stability of the overall connection. As a further description of the above technical solution: One side of each of the two guide plates is fixedly connected to one side of each of the two connecting plates, and one side of the pressing plate is fixedly connected to one side of each of the two connecting plates. Preferred configuration: One side of each of the two guide plates corresponds to one side of the connecting plate, and one side of the crimping plate connects to one side of each of the two connecting plates. The overall structure is tightly connected, forming a complete transmission path, and taking into account the synergy of the plug-in and crimping functions. As a further description of the above technical solution: The buckle piece is elastic, and the cross-sectional shape of the through hole is triangular; Preferred features: The snap-fit ​​piece is elastic, allowing for secure engagement and easy disassembly through deformation; the through hole has a triangular cross-section to enhance fracture resistance. As a further description of the above technical solution: The guide plate is a cylindrical shape formed by metal stamping, and the two sides of the reinforcing plate are respectively fixedly connected to the adjacent sides of the two guide plates; Preferably, the guide plate is a cylindrical shape made of metal stamping, with a regular structure and reliable strength. The two guide plates are connected to the adjacent sides of the reinforcing plate on both sides to enhance the stability and deformation resistance of the overall structure.

[0005] This utility model has the following beneficial effects: 1. In this utility model, by inserting the pin into the guide plate, the pin and the contact plate can form a reliable contact. The presence of the fixing plate allows the two guide plates to be fixedly connected. The auxiliary cooperation of the reinforcing plate and the strengthening plate further improves the stability and firmness of the guide plate connection, effectively avoiding deformation or loosening during insertion. The packaging protrusions can accurately match the carrier tape holes, ensuring that the terminals are neatly arranged in the packaging, reducing offset or misalignment, thereby greatly improving the efficiency of automated mounting and feeding, and providing a stable guarantee for large-scale production.

[0006] 2. In this utility model, the presence of the connecting plate allows the crimping mechanism and the plugging mechanism to form a stable and firm connection, ensuring the reliability of the overall structure. In use, after stripping the wire, place it on the surface of the crimping plate. Through the crimping operation, the first crimping plate and the second crimping plate are pressed and bent in sequence, and the wire is tightly fixed to the surface of the crimping plate in layers, effectively preventing the wire from loosening or falling off. The through hole design effectively disperses the stress generated during the crimping process, greatly improves the fracture resistance of the crimping plate, extends the service life of the terminal, and ensures the stability of current transmission. Attached Figure Description

[0007] Figure 1 This is a three-dimensional schematic diagram of an anti-loosening connection terminal proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a snap-fit ​​piece for an anti-loosening connection terminal proposed in this utility model; Figure 3 This is a schematic diagram of the packaging protrusion of an anti-loosening connection terminal proposed in this utility model; Figure 4 This is a schematic diagram of the structure of the second crimping piece of an anti-loosening connection terminal proposed in this utility model.

[0008] Legend: 1. Connecting plate; 2. Insertion mechanism; 21. Fixing plate; 22. Guide plate; 23. Contact plate; 24. Buckling plate; 25. Packaging protrusions; 26. Reinforcing components; 261. Reinforcing plates; 262. Strengthening plates; 3. Crimping mechanism; 31. Crimping plate; 32. First crimping piece; 33. Second crimping piece; 34. Through hole. Detailed Implementation

[0009] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0010] Example: A type of anti-loosening connection terminal, as described in the reference. Figures 1 to 3 It includes two metal stamping connecting plates 1. A metal stamping plug-in mechanism 2 is fixedly connected to one side of the two connecting plates 1. The plug-in mechanism 2 is used to cooperate with external pins to achieve a detachable connection. The precise structural design ensures the reliability of the connection and facilitates the installation and maintenance of the terminals. A metal stamping crimping mechanism 3 is fixedly connected to the other side of the two connecting plates 1. The crimping mechanism 3 fixes the wires by crimping to form a strong electrical connection, prevents the wires from falling off, and ensures stable current transmission. It is the key part of the connection between the terminal and the wire. Specifically, two metal stamping connecting plates 1 are connected to a metal stamping plug-in mechanism 2 on one side and a metal stamping crimping mechanism 3 on the other side, forming a complete terminal structure. During operation, the plug-in mechanism 2 cooperates with the external pin to form a detachable connection. The precise structure ensures reliable connection and facilitates installation and maintenance. The crimping mechanism 3 forms a strong electrical connection by crimping and fixing the wire, preventing the wire from falling off and ensuring stable current transmission. The connecting plate 1 connects the two into a whole, realizing the smooth conduction of current from the plug end through the connecting plate 1 to the crimp end. The overall structure works together to ensure the reliability of connection and conductivity. The insertion mechanism 2 includes two guide plates 22, which are cylindrical metal stampings. The guide plates 22 guide the insertion of the pins. A fixing plate 21 is fixedly connected to the adjacent side of the two guide plates 22, connecting them together and maintaining their relative position. This prevents the guide plates 22 from deforming or shifting during insertion, ensuring the structural stability of the insertion mechanism 2. A contact piece 23 is provided on the inner wall of the guide plate 22, directly contacting the pin. The tight fit ensures good conductivity, smooth current transmission, and reduced contact resistance. A snap-fit ​​piece 24 is fixedly connected to the outer wall of the guide plate 22. The snap-fit ​​piece 24 is elastic and can engage with the external structure during terminal installation to fix the terminal in a preset position, preventing the terminal from loosening or falling off and enhancing the overall anti-loosening effect of the connection. The bottom of the fixing plate 21 is fixedly connected with packaging protrusions 25. The packaging protrusions 25 cooperate with the carrier tape during terminal packaging to ensure that multiple terminals can be neatly arranged, which facilitates the automatic equipment for mounting and feeding, and improves production efficiency. The two guide pieces 22 are fixedly connected to a reinforcing component 26 on the side that is close to each other. The reinforcing component 26 further enhances the connection strength between the two guide pieces 22, prevents the guide pieces 22 from deforming under force, and ensures that the insertion mechanism 2 can work stably for a long time. Specifically, the core of the insertion mechanism 2 consists of two cylindrical guide plates 22 made of stamped metal, which provide a precise guiding path for the insertion of the pin. The fixing plate 21 connects the two guide plates 22 to maintain a stable relative position, prevent deformation or displacement during insertion, and ensure the overall structure is stable. The contact piece 23 on the inner wall of the guide plate 22 fits tightly with the pin, and achieves low-resistance conductivity through reliable contact, ensuring smooth current transmission. The elastic buckle piece 24 on the outer wall engages with the external structure to securely fix the terminal and enhance the anti-loosening effect. The packaging protrusion 25 at the bottom of the fixing plate 21 cooperates with the carrier tape to ensure that the terminals are neatly arranged and improve the efficiency of automated production. The reinforcing component 26 further strengthens the connection strength between the guide plates 22, prevents deformation under stress, and ensures the long-term stable operation of the mechanism. The crimping mechanism 3 includes a crimping plate 31, which provides a platform for placing the wire. First crimping pieces 32 are fixedly connected to both sides of the crimping plate 31. During crimping, the first crimping pieces 32 first contact the wire and bend to initially fix the position of the wire. Second crimping pieces 33 are fixedly connected to both sides of the crimping plate 31. The second crimping pieces 33 are crimped and bent after the first crimping pieces 32 to further tighten the wire, enhance the connection strength between the wire and the crimping plate 31, prevent the wire from loosening, and improve the reliability of the connection. The inner wall of the crimping plate 31 is provided with a through hole 34. The cross-sectional shape of the through hole 34 is triangular. The through hole 34 can disperse the stress on the crimping plate 31 during the crimping process, enhance the fracture resistance of the crimping plate 31, extend the service life of the terminal, and reduce the weight of the terminal. Specifically, the crimping mechanism 3 uses the crimping plate 31 as a base to support the wire. The first crimping pieces 32 on both sides first contact and bend with the wire during crimping to achieve initial positioning of the wire. Subsequently, the second crimping piece 33 follows up with crimping and bending to further tighten the wire, strengthen the connection with the crimping plate 31, effectively prevent the wire from loosening, and improve the reliability of the connection. The triangular through holes 34 on the inner wall of the crimping plate 31 can disperse the stress during the crimping process and enhance its fracture resistance, which not only extends the service life of the terminal but also reduces the overall weight. Through layered crimping and structural optimization, this mechanism achieves a stable connection of the wire and ensures the stability of current transmission.

[0011] Reference Figure 2 and Figure 4 The reinforcing component 26 includes a reinforcing plate 261, with both sides of the reinforcing plate 261 fixedly connected to the adjacent sides of the two guide pieces 22. The reinforcing plate 261 cooperates with the fixing plate 21 to enhance the connection between the two guide pieces 22 from different directions, further improving the structural stability of the guide pieces 22 and preventing their deformation. A reinforcing plate 262 is fixedly connected to one side of the guide piece 22. The reinforcing plate 262 enhances the structural strength of the guide piece 22 itself, preventing the guide piece 22 from bending and deforming when inserted or under stress, ensuring that the guide piece 22 can maintain good guiding and wrapping effects for a long time. One side of each of the two guide plates 22 is fixedly connected to one side of each of the two connecting plates 1. This connection method makes the guide plates 22 and the connecting plates 1 form a stable whole, ensuring that the current can be transmitted from the contact plate 23 through the guide plates 22 and the connecting plates 1 to the crimping mechanism 3, realizing the smooth transmission of current. One side of the crimping plate 31 is fixedly connected to one side of each of the two connecting plates 1. The crimping plate 31 forms an electrical connection with the insertion mechanism 2 through the connecting plates 1, so that the wire can transmit current to the pin through the crimping plate 31, the connecting plates 1 and the guide plates 22, ensuring the integrity of the conductive path of the entire terminal. Specifically, in the reinforcement component 26, the reinforcement plate 261 connects two guide pieces 22 from both sides, forming a multi-directional support with the fixing plate 21, enhancing the connection stability between the guide pieces 22 and preventing deformation. The reinforcing plate 262 improves the structural strength of the guide pieces 22 themselves, preventing bending during insertion or under stress, and ensuring good guidance and wrapping effect over a long period of time. The guide pieces 22 are connected to the connecting plate 1 to form a stable whole. Current can be transmitted from the contact piece 23 through the guide pieces 22 and the connecting plate 1 to the crimping mechanism 3. The crimping plate 31 forms an electrical path with the insertion mechanism 2 through the connecting plate 1, so that the wire can transmit current to the pin through the crimping plate 31, the connecting plate 1 and the guide pieces 22, ensuring the integrity and smoothness of the entire terminal conductive path.

[0012] The implementation principle of this application embodiment is as follows: thanks to the existence of the connecting plate 1, the connection between the crimping mechanism 3 and the plugging mechanism 2 is stable and firm. In use, after stripping the wire, it is placed on the surface of the crimping plate 31. Through crimping, the first crimping piece 32 and the second crimping piece 33 are pressed and bent in sequence to fix the wire on the surface of the crimping plate 31. Thanks to the existence of the through hole 34, the fracture resistance of the crimping plate 31 is greatly improved. During insertion, the pin is inserted into the guide piece 22, so that the pin makes reliable contact with the contact piece 23. Thanks to the presence of the fixing plate 21, the two guide pieces 22 can be fixedly connected. Thanks to the auxiliary cooperation of the reinforcing plate 261 and the strengthening plate 262, the connection between the two guide pieces 22 is more stable and firm. Thanks to the presence of the packaging protrusion 25, the packaging protrusion 25 can cooperate with the carrier tape hole, ensuring that the terminals are neatly arranged and greatly improving the efficiency of automated placement and feeding.

[0013] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A non-loosening connection terminal, comprising two metal stamping forming connection plates (1), characterized in that: A metal stamping insertion mechanism (2) is fixedly connected to one side of the two connecting plates (1), and a metal stamping pressing mechanism (3) is fixedly connected to the other side of the two connecting plates (1). The insertion mechanism (2) includes two guide plates (22), a fixing plate (21) is fixedly connected to the side of the two guide plates (22) that are close to each other, a contact piece (23) is provided on the inner wall of the guide plate (22), a buckle piece (24) is fixedly connected to the outer wall of the guide plate (22), a packaging protrusion (25) is fixedly connected to the bottom of the fixing plate (21), and a reinforcing component (26) is fixedly connected to the side of the two guide plates (22) that are close to each other.

2. The anti-loosening connection terminal according to claim 1, characterized in that: The pressing mechanism (3) includes a pressing plate (31), with a first pressing piece (32) fixedly connected to both sides of the pressing plate (31), and a second pressing piece (33) fixedly connected to both sides of the pressing plate (31). A through hole (34) is provided on the inner wall of the pressing plate (31).

3. The anti-loosening connection terminal according to claim 1, characterized in that: The reinforcement component (26) includes a reinforcement plate (261), and a reinforcing plate (262) is fixedly connected to one side of the guide plate (22).

4. The anti-loosening connection terminal according to claim 2, characterized in that: One side of each of the two guide plates (22) is fixedly connected to one side of each of the two connecting plates (1), and one side of the pressing plate (31) is fixedly connected to one side of each of the two connecting plates (1).

5. The anti-loosening connection terminal according to claim 2, characterized in that: The buckle piece (24) is elastic, and the cross-sectional shape of the through hole (34) is triangular.

6. The anti-loosening connection terminal according to claim 3, characterized in that: The guide plate (22) is a cylindrical shape made of metal stamping, and the two sides of the reinforcing plate (261) are respectively fixedly connected to the side of the two guide plates (22) that are close to each other.

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