Terminal and connector assembly thereof without counterforce

Abstract

The utility model discloses a kind of terminal and its connector assembly without opposite force, the terminal is used to be electrically connected with male terminal, including terminal main body, the terminal main body includes plug-in part and connecting part, the plug-in part includes top plate, bottom plate and two side plates, the top plate, bottom plate and two side plates form the hollow cavity accommodating the male terminal, the top plate is away from the one end of the connecting part and has spring, the spring is cantilevered in the hollow cavity and extends along the male terminal insertion direction, the top plate is provided with the slider slidingly abutting on the spring.The terminal without opposite force of the utility model can realize the insertion of male terminal without opposite force, and the stable connection of male and female terminals is realized by the spring extruded by slider, reduce the difficulty of connector plugging when it is applied to corresponding connector assembly.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a terminal without mating force and its connector assembly. Background Technology

[0002] Currently, commonly used connector components in electronic devices mainly include traditional pluggable connectors, snap-fit ​​connectors, and threaded locking connectors. These have the following significant drawbacks in practical applications: 1. Traditional pluggable and snap-fit ​​connectors rely on interference fit or snap-fit ​​preload, requiring significant insertion force when mating male and female terminals. In high-density installations or manual operation scenarios, this can easily lead to operator fatigue. 2. The locking force of ordinary snap-fit ​​connectors relies on the elastic deformation of the plastic components. After long-term vibration or temperature cycling, the snap-fit ​​is prone to aging and failure, leading to circuit breakage. 3. Threaded locking connectors require sufficient screwing space, which cannot meet the installation requirements of miniaturized, high-density electronic devices. The plugging and unplugging operations of traditional connectors also place high demands on the layout of surrounding components, limiting the flexibility of equipment design. 4. During frequent plugging and unplugging, the contact surfaces of the interference-fit terminals are prone to wear, leading to increased contact resistance, affecting signal transmission or current conduction performance, and shortening the connector's lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a terminal and connector assembly without mating force to overcome the shortcomings of the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a non-matching force terminal for electrical connection with a male terminal. The terminal body includes a plug-in portion and a connecting portion. The plug-in portion includes a top plate, a bottom plate, and two side plates. The top plate, bottom plate, and side plates form a hollow cavity for accommodating the male terminal. A spring sheet protrudes from one end of the top plate away from the connecting portion. The spring sheet extends in a cantilever shape within the hollow cavity along the insertion direction of the male terminal. The top plate is provided with a slider that slides against the spring sheet.

[0005] Furthermore, in the aforementioned terminals without matching force, the free end of the spring is bent toward the base plate to form a contact portion.

[0006] Furthermore, in the aforementioned terminal without matching force, the connection between the top plate and the two side plates is respectively provided with a relief groove corresponding to the slider, the top plate between the two relief grooves forms a guide strip, and a sliding cavity is formed in the slider that is slidably sleeved on the guide strip.

[0007] Furthermore, in the aforementioned terminal without matching force, the end of the slider opposite to the connecting portion protrudes with an abutment portion that slides against the spring piece.

[0008] Furthermore, in the aforementioned terminal without mating force, the end face of the contact portion near the spring sheet has a beveled structure.

[0009] Furthermore, in the aforementioned terminals without mating force, the bottom plate is bent toward the top plate with an elastic boss.

[0010] This embodiment also discloses a connector assembly, including a female connector, a CPA assembly, and a plurality of terminals without mating force as described above. The female connector is provided with a mounting groove corresponding to the CPA assembly and a plurality of insertion grooves corresponding to the terminals without mating force. One end of the insertion groove near the mounting groove is connected to the mounting groove. The CPA assembly is provided with a plurality of pushing blocks that extend to the insertion groove and slide against the slider.

[0011] Furthermore, in the connector assembly described above, the base plate is recessed and provided with a first snap-fit ​​groove, and the insertion groove is provided with a first buckle corresponding to the first snap-fit ​​groove.

[0012] Furthermore, in the connector assembly described above, second snaps protrude from both sides of the mounting groove, and second snap-fit ​​grooves corresponding to the second snaps are recessed on both sides of the CPA assembly. The second snap-fit ​​grooves include a primary snap-fit ​​groove and a secondary snap-fit ​​groove.

[0013] Furthermore, in the above-mentioned connector assembly, the CPA assembly is provided with a spring, and the female connector is provided with a relief groove corresponding to the spring, and the relief groove is provided with a stop corresponding to the spring.

[0014] Compared with the prior art, the advantages of this utility model are as follows: the non-matching force terminal of this utility model can realize the insertion of the male terminal without matching force, and realize the stable connection of the male and female terminals by squeezing the spring piece with a slider. When applied to the corresponding connector assembly, it reduces the difficulty of plugging and unplugging the connector. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1The diagram shown is a structural schematic of a terminal without matching force in a specific embodiment of this utility model.

[0017] Figure 2 The diagram shown is a cross-sectional view of a terminal without counterforce in a specific embodiment of this utility model.

[0018] Figure 3 The diagram shown is a structural schematic of the terminal body in a specific embodiment of this utility model.

[0019] Figure 4 The diagram shown is a schematic representation of the slider in a specific embodiment of this utility model.

[0020] Figure 5 The diagram shown is a structural schematic of the connector assembly in a specific embodiment of this utility model.

[0021] Figure 6 The diagram shown is a cross-sectional view of the connector assembly in a specific embodiment of this utility model.

[0022] Figure 7 The diagram shown is a structural schematic of the female connector in a specific embodiment of this utility model.

[0023] Figure 8 The diagram shown is a structural schematic of the CPA component in a specific embodiment of this utility model. Detailed Implementation

[0024] The technical solutions of the present utility model will be described in detail below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounted", "connected" and "coupled" are to be construed broadly, for example, they may be fixed connection, detachable connection, or integral connection; they may be mechanical connection, or electrical connection; they may be directly connected, or indirectly connected through an intermediate medium, or may be in communication with each other inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood under specific circumstances.

[0027] Reference Figures 1 to 4 as shown in the figure, a terminal with no mating force is used for electrical connection with a male terminal, comprising a terminal body 1. The terminal body 1 includes a plug portion 11 and a connecting portion 12. The plug portion 11 includes a top plate 111, a bottom plate 112 and two side plates 113. The top plate 111, the bottom plate 112 and the two side plates 113 enclose a hollow cavity for accommodating the male terminal. A spring piece 114 protrudes from an end of the top plate 111 facing away from the connecting portion 12. The spring piece 114 extends in a cantilever shape along the insertion direction of the male terminal inside the hollow cavity. The top plate 111 is provided with a sliding block 2 that slidably abuts against the spring piece 114.

[0028] In this technical solution, the terminal body is made of conventional conductive metal, and the connecting portion directly adopts the existing structure, including a part for crimping onto the conductor of the cable and a part for crimping onto the outer cladding of the cable, so as to realize electrical connection with the corresponding cable. The two sides of the bottom plate are respectively bent to form the corresponding side plates, one end of one side plate facing away from the bottom plate is bent to form the top plate, and the other side plate is bent with a reinforcing plate to provide support for the top plate, thereby improving the overall strength of the plug portion. The bottom plate, the two side plates and the top plate enclose a hollow cavity with openings at both ends for accommodating the male terminal. The end of the top plate facing away from the connecting portion is bent into the hollow cavity to form the spring piece, which extends in a cantilever shape along the insertion direction of the male terminal in the hollow cavity. When the male terminal is inserted into the hollow cavity of the plug portion, the spring piece will not generate resistance to the male terminal, reducing the insertion and extraction wear of the contact surface of the terminal. After the male terminal is inserted into place, the sliding block is slid to abut against the spring piece, forcing the spring piece to press the male terminal, which has a high positive locking force, effectively resists harsh working conditions such as vibration and impact, and the stable contact pressure keeps the contact resistance below 5mΩ for a long time, reducing the signal transmission attenuation by 30%.

[0029] Exemplarily, referring to Figures 1 to 3 as shown in the figure, the free end of the spring piece 114 is bent toward the bottom plate 112 to form a contact portion 1141.

[0030] In this technical solution, the top surface of the spring (the end face near the top plate) and the inner wall of the top plate (the end face near the bottom plate) are set at an acute angle, and the free end of the spring is bent towards the side near the bottom plate with an arc-shaped contact part. When the slider abuts against the spring, it forces the spring to elastically deform around the connection between it and the top plate, that is, the contact part moves towards the side near the surface of the male terminal and makes electrical contact with the surface of the male terminal, thereby realizing the point connection between the male and female terminals.

[0031] For example, see Figures 1 to 4 As shown, the top plate 111 and the two side plates 113 are respectively provided with relief grooves corresponding to the slider 2. The top plate 111 between the two relief grooves forms a guide strip, and the slider 2 has a sliding cavity that is slidably sleeved on the guide strip.

[0032] In this technical solution, the width of the part of the top plate used to connect the slider is reduced to form a guide strip, which is used to accommodate the sliding setting of the slider. The relief groove formed at the connection between the top plate and the two side plates avoids interference with the sliding of the slider. The slider has a sliding cavity formed by bending and other processes. The sliding cavity is slidably fitted onto the guide strip to realize the sliding contact between the slider and the spring.

[0033] For example, see Figures 1 to 4 As shown, the end of the slider 2 opposite to the connecting part 12 has a protruding abutment part 21 that slides against the spring piece 114.

[0034] In this technical solution, the end of the slider away from the connecting part is bent to have an abutment part. During the sliding process of the slider, it abuts against the top surface of the spring piece, forcing the spring piece to deform.

[0035] For example, see Figures 1 to 4 As shown, the end face of the contact portion 21 near the spring piece 114 has a beveled structure.

[0036] In this technical solution, the bottom surface of the contact part (the end face near the base plate) is chamfered on one side of the spring sheet to prevent the slider and the spring sheet from jamming.

[0037] For example, see Figures 1 to 4 As shown, the bottom plate 112 is bent toward the top plate 111 and has an elastic boss 1121.

[0038] In this technical solution, the base plate is processed with raised elastic bosses (protruding towards the side closer to the top plate) through processes such as stamping, which, together with the contact part, improve the stability of the contact between the male and female terminals.

[0039] This application also discloses a connector assembly as described above, see [link to application]. Figures 5 to 8As shown, it includes a female connector 3, a CPA assembly 4, and several terminals without mating force as described above. The female connector 3 is provided with a mounting groove 31 corresponding to the CPA assembly 4 and several insertion grooves 32 corresponding to the terminals without mating force. One end of the insertion groove 32 near the mounting groove 31 is connected to the mounting groove 31. The CPA assembly 4 is provided with several push blocks 41 that extend to the insertion grooves 32 and slide against the slider 2.

[0040] In this technical solution, the connection part of the terminal without mating force is connected to the cable using conventional terminal pliers, etc. Then, the insertion part of the terminal body is inserted into the female connector from one end of the insertion slot. The insertion slot has a step near the corresponding male connector to lock the terminal body, preventing the terminal without mating force from sliding out of the female connector. After the CPA component slides into the mounting slot, the push block abuts against the slider. After the male terminal is inserted with the male connector, the push block of the CPA component drives the slider to move, forcing the spring to clamp the male terminal between the contact part and the elastic boss. To ensure sufficient contact between the push block and the slider... The slider has a thickened section bent at the end near the push block; the top of the insertion slot is connected to the mounting slot through a connecting slot. The width of the connecting slot is smaller than the width of the terminal body, which limits the terminals without mating force. At the same time, the width of the connecting slot is larger than the width of the push block and the thickened section, so as to avoid interfering with the sliding of the push block and the thickened section, that is, it will not interfere with the CPA component pushing the slider; the male and female terminals adopt a mating force-free design, which does not require overcoming elastic resistance during the mating process, and realizes quick manual docking. It is especially suitable for narrow spaces or high-density installation scenarios, which greatly improves assembly efficiency and effectively extends the service life of the connector.

[0041] For example, see Figures 5 to 8 As shown, the base plate 112 has a recessed first snap-fit ​​groove 1122, and the insertion groove 32 has a protruding first buckle 321 corresponding to the first snap-fit ​​groove 1122.

[0042] In this technical solution, after the main body of the female terminal is inserted into the insertion slot, the first buckle is engaged with the first insertion slot to limit the main body of the female terminal, thereby preventing poor contact caused by displacement of the terminal itself.

[0043] For example, see Figures 5 to 8 As shown, the mounting groove 31 has a second buckle 311 protruding from both sides, and the CPA component 4 has a second snap-fit ​​groove 42 corresponding to the second buckle 311 recessed on both sides. The second snap-fit ​​groove includes a primary snap-fit ​​groove and a secondary snap-fit ​​groove.

[0044] In this technical solution, the primary slot is used as a pre-tightening slot. That is, when the second buckle is engaged in the primary slot, the CPA component is initially fixed to the female connector. At this time, the push block will not push the slider. When the male terminal is inserted into the female terminal, the CPA component is pushed again. The push block pushes the slider to abut against the spring. At the same time, the second buckle is engaged in the secondary slot to fix the CPA component and prevent the CPA component from contacting and locking, causing sliding and the spring to disengage.

[0045] For example, see Figures 5 to 8 As shown, the CPA component 4 is provided with a spring tongue 43, and the female connector 3 is provided with a relief groove corresponding to the spring tongue, and a stop bar corresponding to the spring tongue is provided in the relief groove.

[0046] In this technical solution, the spring is slidably positioned within the clearance groove to avoid interfering with the sliding of the CPA component. The spring is locked behind the stop bar, and together with the second buckle and the second locking groove, it improves the reliability of the CPA component's fixation. When it is necessary to unlock the CPA component, simply press the spring so that it is positioned below the stop bar.

[0047] In summary, the mating force-free terminal of this invention enables the insertion of male terminals without mating force. During mating, there is no need to overcome elastic resistance, allowing for quick, manual connection. This is particularly suitable for confined spaces or high-density installation scenarios, significantly improving assembly efficiency. Furthermore, the sliding block compresses the spring, achieving a stable connection between the male and female terminals. When applied to corresponding connector assemblies, the CPA component pushes the sliding block to lock the spring, forcing the spring to clamp the male terminal between the contact portion and the elastic boss. The high positive locking force effectively resists harsh conditions such as vibration and impact, preventing the male and female terminals from loosening and the risk of locking failure. The mating force-free design reduces insertion and extraction wear on the contact surfaces between the male and female terminals. Combined with the stable contact pressure after the sliding block locks in, the contact resistance remains below 5mΩ for a long period, reducing signal transmission attenuation by 30% and effectively extending the connector's lifespan.

[0048] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0049] The above description is only a specific embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A terminal without mating force for electrical connection with a male terminal, characterized in that, The device includes a terminal body, which includes a plug-in portion and a connecting portion. The plug-in portion includes a top plate, a bottom plate, and two side plates. The top plate, bottom plate, and side plates form a hollow cavity for accommodating the male terminal. A spring sheet protrudes from one end of the top plate away from the connecting portion. The spring sheet extends in a cantilever shape within the hollow cavity along the insertion direction of the male terminal. The top plate is provided with a slider that slides against the spring sheet.

2. The terminal without mating force according to claim 1, characterized in that: The free end of the spring sheet is bent toward the base plate and has a contact portion.

3. The terminal without mating force according to claim 1, characterized in that: The top plate and the two side plates are respectively provided with relief grooves corresponding to the slider. The top plate between the two relief grooves forms a guide strip, and the slider has a sliding cavity that is slidably sleeved on the guide strip.

4. The terminal without mating force according to claim 1, characterized in that: The end of the slider opposite to the connecting part has a protruding abutment that slides against the spring piece.

5. The terminal without mating force according to claim 4, characterized in that: The end face of the contact portion near the spring piece has a beveled structure.

6. The terminal without mating force according to claim 1, characterized in that: The bottom plate is bent toward the top plate and has an elastic boss.

7. A connector assembly, characterized in that, The device includes a female connector, a CPA assembly, and several terminals without mating force as described in any one of claims 1 to 6. The female connector is provided with a mounting groove corresponding to the CPA assembly and several insertion grooves corresponding to the terminals without mating force. One end of each insertion groove near the mounting groove is connected to the mounting groove. The CPA assembly is provided with several push blocks that extend to the insertion grooves and slide against the slider.

8. The connector assembly according to claim 7, characterized in that: The base plate is recessed and has a first snap-fit ​​groove, and a first buckle corresponding to the first snap-fit ​​groove protrudes from the snap-fit ​​groove.

9. The connector assembly according to claim 7, characterized in that: The mounting groove has second buckles protruding from both sides, and the CPA component has second snap-fit ​​grooves corresponding to the second buckles on both sides. The second snap-fit ​​grooves include primary snap-fit ​​grooves and secondary snap-fit ​​grooves.

10. The connector assembly according to claim 7, characterized in that: The CPA component is provided with a spring, and the female connector is provided with a relief groove corresponding to the spring, and the relief groove is provided with a stop bar corresponding to the spring.

Images