Integrated elastic sheet wiring terminal

Abstract

The utility model relates to the technical field of wiring terminals, in particular to an integrated elastic piece wiring terminal which comprises an upper shell, a lower shell, an integrated elastic piece, a supporting base arranged in the shell and used for being matched with the integrated elastic piece, a conduction bottom plate used for electrical connection and a pressing pin used for pressing the integrated elastic piece. The upper shell and the lower shell are provided with integrated elastic pieces, the conduction bottom plate is arranged in the lower shell, the supporting base is arranged on the conduction bottom plate, conduction columns used for making contact with the integrated elastic pieces are arranged on the two sides of the conduction bottom plate, the upper shell and the lower shell are buckled and fixedly connected with each other, the upper shell is provided with a locking groove, and the upper shell and the lower shell are fixedly connected through the locking groove. The pressing pin is arranged in the locking groove in a penetrating mode and abuts against the integrated elastic piece. The method has the effect of improving the low assembly efficiency.

Description

Technical Field

[0001] This application relates to the technical field of terminal blocks, and in particular to an integrated spring-loaded terminal block. Background Technology

[0002] Spring-loaded terminal blocks are common electrical connection components widely used in industrial control, home appliances, lighting systems, and other fields. The spring structure of spring-loaded terminal blocks typically uses springs made of highly elastic materials such as stainless steel or phosphor bronze to ensure stable clamping force even after long-term use. The core technology of spring-loaded terminal blocks lies in utilizing the spring force to achieve quick connection and reliable fixation of wires. No tools are required; the connection is completed simply by inserting the wire, significantly improving installation efficiency.

[0003] In related technologies, spring-loaded terminals typically include a housing and a spring clip housed within the housing. Each spring clip usually has at least one bend, giving the overall structure a U-shape, thus enabling elastic deformation and facilitating mating with wires.

[0004] Regarding the aforementioned technologies, in order to connect the positive and negative wires, at least two spring contacts need to be placed inside the housing, and the two spring contacts can be arranged side by side by setting limiting posts and other related structures inside the housing. Compared with the structure of a single spring contact, the manufacturing and quantity of parts for two spring contacts will increase exponentially, and they need to be assembled separately, thereby reducing assembly efficiency. Utility Model Content

[0005] To address the issue of reduced assembly efficiency due to the increased number of spring contacts, this application provides an integrated spring contact terminal block.

[0006] The integrated spring-loaded terminal block provided in this application adopts the following technical solution:

[0007] An integrated spring contact terminal block includes an upper housing, a lower housing, an integrated spring contact, a support base disposed within the housing for engaging with the integrated spring contact, a conductive base plate for electrical connection, and a clamping pin for pressing the integrated spring contact. The conductive base plate is disposed within the lower housing, the support base is disposed on the conductive base plate, and the conductive base plate has conductive posts on both sides for contacting the integrated spring contact. The upper housing and the lower housing are interlocked and fixedly connected. The upper housing has a locking groove, and the clamping pin passes through the locking groove and abuts against the integrated spring contact.

[0008] By adopting the above technical solution, compared with the traditional method that requires two springs to be assembled separately, the integrated spring reduces the number of parts and assembly steps, avoiding the cumbersome process of assembling multiple springs separately, thereby improving assembly efficiency. The upper and lower housings are interlocked and fixedly connected to form a more stable overall structure, which can better protect the internal components. The support base, conductive base plate, and conductive post used to cooperate with the integrated spring ensure the stable and reliable connection between the integrated spring and the wires, guaranteeing electrical connection performance and ensuring smooth current conduction.

[0009] Furthermore, the integrated spring sheet has two symmetrically arranged deformable parts and a connecting part for connecting the two deformable parts. The connecting part is integrally connected between the two deformable parts. The deformable parts and the connecting part together form a U-shape at the connection position. The end of the deformable part away from the connecting part abuts against the conductive post.

[0010] By adopting the above technical solution, the ends of the two deformation parts furthest from the connecting part abut against the conductive post, ensuring good and stable contact with the conductive post. This guarantees that the current can be stably conducted through the integrated spring to the conductive post, achieving a reliable electrical connection. The symmetrically arranged deformation parts can correspond to positive and negative poles or wires with different phase sequences, achieving bidirectional or multidirectional electrical connections. The deformation parts and the connecting part together form a U-shape, giving the integrated spring excellent elastic deformation capability. When the wire is inserted or pulled out, the spring can adapt through the elastic deformation of the U-shaped structure, providing appropriate clamping force. The integrated spring connects the two deformation parts integrally through the connecting part. Compared to a structure composed of multiple individual springs, this reduces the number of parts and connection points, lowers structural complexity, simplifies manufacturing processes, improves production efficiency, and also reduces assembly errors and potential failure points caused by excessive parts.

[0011] Furthermore, the support base is provided with a positioning groove for the connecting part and the deformable part to be inserted.

[0012] By adopting the above technical solution, the positioning groove provides precise positioning for the connecting and deforming parts of the integrated spring, ensuring the accurate position of the spring on the support base. This allows for precise engagement between the spring and the conductive post, guaranteeing the accuracy and stability of the electrical connection and reducing problems such as poor contact caused by spring position deviation. During assembly, workers only need to align the connecting and deforming parts of the integrated spring and insert them into the positioning groove, simplifying the installation process, reducing installation difficulty, and improving assembly efficiency.

[0013] Furthermore, the upper housing is provided with a positioning post at the corresponding position of the positioning groove for extending between the two deformable parts.

[0014] By adopting the above technical solution, the positioning post extends between the two deformable parts of the integrated spring piece and cooperates with the positioning groove of the support base. This is equivalent to adding a fixing point on the upper part of the spring piece. Together with the positioning groove of the support base, it constrains and fixes the integrated spring piece from both the top and bottom, effectively limiting the swaying and displacement of the spring piece, enhancing the stability of the entire terminal structure, improving the positioning accuracy of the spring piece in the housing, ensuring that the spring piece is in the accurate position, which is conducive to its precise cooperation with other components such as the conductive post, and ensuring the reliability and stability of the electrical connection.

[0015] Furthermore, the conductive base plate is provided with a pre-fixing piece for pre-fixing the integrated spring piece, and the connecting part is provided with a through hole for inserting the pre-fixing piece.

[0016] By adopting the above technical solution, the cooperation between the pre-fixing plate and the through hole during the assembly process allows the integrated spring to be quickly and initially positioned when installed onto the support base and the guide plate. The insertion of the pre-fixing plate into the through hole temporarily secures the integrated spring, preventing it from shifting due to slight external forces or vibrations during operation. This ensures the spring remains in the correct position when subsequent components such as the clamping pin are installed, reducing the probability of readjustment due to spring position changes and making the assembly process smoother.

[0017] Furthermore, the conductive base plate is provided with at least two pre-fixing plates for pre-fixing the integrated spring piece, and the two pre-fixing plates are arranged at intervals to form a pre-fixing groove for the integrated spring piece to be inserted.

[0018] By adopting the above technical solution, during the assembly process, the pre-fixing plates enable the integrated spring sheet to achieve rapid initial positioning when installed onto the support base and the guide plate. A pre-fixing groove is formed between two spaced-apart pre-fixing plates. The integrated spring sheet is inserted into the pre-fixing groove and is thus temporarily fixed by the two pre-fixing plates, preventing displacement due to slight external forces or vibrations during operation. This ensures that the spring sheet remains in the correct position when subsequent components such as clamping pins are installed, making the assembly process smoother.

[0019] Furthermore, the number of the integrated spring pieces is several, and the positioning groove is provided in a one-to-one correspondence with each of the integrated spring pieces.

[0020] By adopting the above technical solution, the setting of multiple integrated spring contacts enables the terminal block to connect multiple wires at the same time, meeting the diverse electrical connection needs in complex circuits. In the internal wiring of some industrial control circuits or electronic equipment, it may be necessary to connect multiple wires with different functions at the same time. Multiple integrated spring contacts can easily meet this requirement, enhancing the applicability of the terminal block in different scenarios.

[0021] Furthermore, the upper shell is provided with a first dovetail block and a first dovetail groove on its two opposite outer side walls, and the lower shell is provided with a second dovetail block and a second dovetail groove on its two opposite outer side walls.

[0022] By adopting the above technical solution, dovetail blocks and dovetail slots facilitate the expansion and connection of terminal blocks on a flat surface. Operators only need to align the dovetail block of one terminal block with the dovetail slot of another to quickly complete the connection without the need for additional tools, thus improving installation efficiency. When circuit expansion is required, new terminal blocks can be quickly added to meet increasing connection demands. During flat expansion, the dovetail structure ensures accurate splicing of terminal blocks. The tight fit between the dovetail blocks and dovetail slots ensures precise alignment of each terminal block during connection. This standardized arrangement facilitates wiring and line management, reduces the risk of wiring crossover and confusion, and provides convenience for subsequent circuit inspection, maintenance, and troubleshooting.

[0023] Furthermore, the lower housing is provided with a support foot on its lower side, and the support foot is slidably connected to the lower housing.

[0024] By adopting the above technical solution, in actual use, the terminal block may be subjected to external forces from the side, such as cable tension or lateral forces generated by equipment vibration. The horizontally sliding support feet can enhance the terminal block's ability to resist lateral forces to a certain extent. When subjected to lateral forces, the support feet can adjust their support position by sliding horizontally according to the direction and magnitude of the force, keeping the center of gravity of the entire terminal block stable, thereby effectively dispersing the lateral forces and preventing the terminal block from tilting or shifting due to lateral forces.

[0025] Furthermore, the lower housing has a snap-fit ​​protrusion on its side wall for connecting with the upper housing, and the upper housing has a through groove on its side wall that mates with the snap-fit ​​protrusion.

[0026] By adopting the above technical solution, after the snap-fit ​​protrusion passes through the through groove, it will form a certain clamping force within the groove, firmly connecting the upper and lower housings together. This connection method can effectively resist external forces, such as vibration and impact, preventing the housings from separating and ensuring the overall stability of the terminal block structure. In actual use, even if the terminal block is subjected to a certain degree of external force, the snap-fit ​​structure can maintain the connection state of the housings, ensuring the normal operation of internal components.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. The use of an integrated spring reduces the number of parts and assembly steps, avoiding the cumbersome assembly of multiple springs separately. For example, the integrated spring and the support base cooperate through positioning slots, simplifying the installation process. From the perspective of electrical connection, the deformable part of the integrated spring makes good contact with the conductive post, achieving reliable electrical conduction. The symmetrically arranged deformable parts meet the requirements of bidirectional or multidirectional electrical connection.

[0029] 2. Structurally, the upper and lower shells are snapped together to form a stable whole. The positioning groove, positioning post and other structures constrain and fix the spring piece from the top and bottom, which enhances the overall structural stability of the terminal block and ensures reliable electrical connection. The upper and lower shells are connected by snap-fit ​​protrusions and through grooves, which do not require additional tools, making the operation simple and quick and improving the overall assembly efficiency.

[0030] 3. Multiple integrated spring contacts meet the diverse connection needs of complex circuits; the dovetail block and dovetail slot design facilitates the rapid expansion of terminal connections on the plane, and the standardized arrangement is conducive to wiring and line management; the horizontally sliding support feet enhance the terminal's resistance to lateral forces, enabling it to better adapt to different working conditions and installation environments. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an integrated spring contact terminal block according to Embodiment 1 of this application.

[0032] Figure 2 This is an exploded view of the structure of an integrated spring-loaded terminal block according to Embodiment 1 of this application.

[0033] Figure 3 This is an exploded view of the integrated spring, support base, and conductive base plate in Embodiment 1 of this application.

[0034] Figure 4 This is an exploded view of the integrated spring and conductive base plate in Embodiment 1 of this application.

[0035] Figure 5 This is a cross-sectional structural diagram of an integrated spring contact terminal block according to Embodiment 1 of this application.

[0036] Figure 6 This is an exploded view of the upper housing, lower housing, and clamping pin of the first terminal block in Embodiment 1 of this application.

[0037] Figure 7 This is an exploded view of the upper and lower housings of the first terminal block in Embodiment 1 of this application.

[0038] Figure 8 This is a schematic diagram of the overall structure of the second terminal block in Embodiment 1 of this application.

[0039] Figure 9This is an exploded view of the integrated spring and conductive base plate in Embodiment 2 of this application.

[0040] Figure 10 This is a cross-sectional structural diagram of an integrated spring contact terminal block according to Embodiment 2 of this application.

[0041] Explanation of reference numerals in the attached drawings: 1. First terminal block; 11. Upper housing; 111. Positioning post; 112. Locking groove; 113. Through groove; 114. First dovetail block; 115. First dovetail groove; 12. Lower housing; 121. Snap-fit ​​protrusion; 122. Second dovetail block; 123. Second dovetail groove; 13. Integrated spring piece; 131. Deformation part; 132. Connecting part; 1321. Through hole; 14. Support base; 141. Positioning groove; 15. Conductive base plate; 151. Conductive post; 152. Pre-fixing piece; 1521. Pre-fixing groove; 16. Pressing pin; 17. Support foot; 2. Second terminal block. Detailed Implementation

[0042] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-10 Examples 1 and 2 will be used to further describe this application in detail.

[0043] Example 1

[0044] This application discloses an integrated spring-loaded terminal block. (Refer to...) Figure 1 and Figure 2 The integrated spring contact terminal includes a first terminal 1 and a second terminal 2 that can be interlocked. When the wiring position of the first terminal 1 is fully occupied, the second terminal 2 can realize the expansion function.

[0045] Reference Figure 2 and Figure 3 Taking the first terminal block 1 as an example, the first terminal block 1 includes an upper housing 11, a lower housing 12, an integrated spring 13, a support base 14, a conductive base plate 15, a clamping pin 16, and a support foot 17. The upper housing 11 can be fastened to the outside of the lower housing 12 and is used to protect the internal components. The support base 14 is arranged inside the lower housing 12 and is used to install the integrated spring 13. The conductive base plate 15 serves as an electrical connection. The clamping pin 16 can clamp the integrated spring 13. The support foot 17 is installed below the lower housing 12 to enhance the overall balance of the terminal block.

[0046] Both the support base 14 and the conductive base plate 15 are located inside the lower housing 12, with the conductive base plate 15 situated between the support base 14 and the lower inner wall of the lower housing 12. In this embodiment, multiple integrated spring pieces 13 are used, and the support base 14 has positioning grooves 141 corresponding to each integrated spring piece 13. Multiple conductive posts 151 for contacting the integrated spring pieces 13 are vertically arranged on both sides of the conductive base plate 15. When the integrated spring piece 13 is installed on the support base 14, both ends of the integrated spring piece 13 can abut against the conductive posts 151 on both sides of the conductive base plate 15, thereby achieving an electrical connection.

[0047] Reference Figure 3 and Figure 4 The integrated spring 13 has two symmetrically arranged deformation parts 131 and a connecting part 132 for connecting the two deformation parts 131. The deformation part 131 is in an inverted U-shape, which facilitates elastic deformation through its own structure. The connecting part 132 is integrally connected between the two deformation parts 131. The deformation part 131 and the connecting part 132 together form a U-shape at the connection position. The U-shaped part formed by the deformation part 131 and the connecting part 132 is inserted into the positioning groove 141.

[0048] Combination Figure 5 The conductive base plate 15 has multiple pre-fixing pieces 152 spaced along its length at the central axis position. Each pre-fixing piece 152 is integrally connected to the conductive base plate 15 and corresponds one-to-one with the conductive posts 151 on both sides. Each integral spring piece 13 has a through hole 1321 in the connecting part 132 for the insertion of the pre-fixing piece 152. When the integral spring piece 13 is placed into the positioning groove 141 of the support base 14, the pre-fixing piece 152 is inserted into the through hole 1321 to pre-fix the integral spring piece 13.

[0049] The upper housing 11 is provided with a positioning post 111 at the corresponding position of the positioning groove 141 for extending between the two deformable parts 131. The positioning post 111 cooperates with the positioning groove 141 of the support base 14 to add a fixing point on the upper part of the spring piece, thereby constraining and fixing the integrated spring piece 13 from both the upper and lower directions, and limiting the swaying and displacement of the spring piece.

[0050] The upper housing 11 has symmetrically arranged locking grooves 112 on both sides of the positioning post 111. The pressing pin 16 passes through the locking groove 112 and abuts against the integrated spring piece 13, thereby pressing the integrated spring piece 13 against the support base 14. The deformable part 131 of the integrated spring piece 13, away from the connecting part 132, abuts against the guide post 151.

[0051] Reference Figure 6 and Figure 7The lower housing 12 of the first terminal block 1 has multiple snap-fit ​​protrusions 121 spaced along the length of its side wall and integrally connected thereto for engaging with the upper housing 11. The upper housing 11 has through slots 113 on its side wall for engaging with each snap-fit ​​protrusion 121. After the snap-fit ​​protrusion 121 passes through the through slot 113, it will form a certain clamping force in the slot, firmly connecting the upper housing 11 and the lower housing 12 together.

[0052] Combination Figure 8 In this embodiment, the housings of the first terminal 1 and the second terminal 2 can be interlocked to expand the wiring position. The upper housing 11 of the first terminal 1 and the second terminal 2 has a first dovetail block 114 and a first dovetail groove 115 on its two opposite outer side walls, respectively. The lower housing 12 has a second dovetail block 122 and a second dovetail groove 123 on its two opposite outer side walls, respectively. By aligning the dovetail block of one terminal with the dovetail groove of the other terminal, a connection can be quickly completed without the need for additional tools, improving installation efficiency. When it is necessary to expand the circuit connection, new terminals can be quickly added to meet the increasing connection requirements. The support feet 17 of the first terminal 1 and the second terminal 2 are both slidably connected to the lower side of the lower housing 12.

[0053] The implementation principle of an integrated spring-loaded terminal block according to an embodiment of this application is as follows: a conductive base plate 15 is disposed inside the lower housing 12, and the conductive post 151 abuts against both ends of the integrated spring 13 to achieve electrical connection. The two symmetrical deformation portions 131 and the connecting portion 132 of the integrated spring 13 form a U-shaped structure, which has elastic deformation capability. When the wire is inserted or pulled out, it can provide appropriate clamping force through elastic deformation to ensure good contact with the conductive post 151 and ensure stable current conduction. Multiple integrated springs 13 cooperate with the corresponding positioning slots 141 on the support base 14 to facilitate the simultaneous connection of multiple wires and meet the needs of complex circuit connections.

[0054] The upper housing 11 engages with the snap-fit ​​protrusion 121 of the lower housing 12 via a through groove 113, forming a clamping force for a secure connection and protecting the internal components. The positioning groove 141 of the support base 14 and the positioning post 111 of the upper housing 11 constrain and fix the integrated spring piece 13 from above and below, enhancing stability. The pre-fixing piece 152 of the conductive base plate 15 is inserted into the through hole 1321 of the connecting part 132 of the integrated spring piece 13 to achieve pre-fixation, facilitating the subsequent installation of the clamping pin 16.

[0055] The first terminal 1 and the second terminal 2 can be interlocked to expand the wiring position. The dovetail blocks and dovetail grooves on the housings of both allow for quick connection of the terminals on a flat surface without additional tools, facilitating the rapid addition of new terminals during circuit expansion. Simultaneously, the support foot 17 is slidably connected to the lower housing 12, allowing for horizontal adjustment of the support position when subjected to lateral forces, dispersing the lateral force and ensuring the stability of the terminals under different operating conditions.

[0056] Example 2

[0057] Reference Figure 9 and Figure 10 The difference between this embodiment and embodiment 1 is that the conductive base plate 15 is provided with two pre-fixing pieces 152 at the corresponding position of each integrated spring piece 13. The two pre-fixing pieces 152 are arranged at intervals and form a pre-fixing groove 1521 for the integrated spring piece 13 to be inserted, thereby pre-fixing the integrated spring piece 13.

[0058] During assembly, the pre-fixing pieces 152 enable the integrated spring piece 13 to be quickly and initially positioned when installed on the support base 14 and the conductive base plate 15. A pre-fixing groove 1521 is formed between the two spaced pre-fixing pieces 152. The integrated spring piece 13 is inserted into the pre-fixing groove 1521 and is temporarily fixed by being clamped by the two pre-fixing pieces 152, preventing it from shifting due to slight external force or vibration during operation. This ensures that the spring piece remains in the correct position when installing components such as clamping pins, making the assembly process smoother.

[0059] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An integrated spring-loaded terminal block, characterized in that: The device includes an upper housing (11), a lower housing (12), an integrated spring piece (13), a support base (14) disposed within the housing and used to cooperate with the integrated spring piece (13), a conductive base plate (15) for electrical connection, and a clamping pin (16) for pressing the integrated spring piece (13). The conductive base plate (15) is disposed within the lower housing (12), and the support base (14) is disposed on the conductive base plate (15). The conductive base plate (15) has conductive posts (151) on both sides for contacting the integrated spring piece (13). The upper housing (11) and the lower housing (12) are interlocked and fixedly connected. The upper housing (11) has a locking groove (112), and the clamping pin (16) passes through the locking groove (112) and abuts against the integrated spring piece (13).

2. The integrated spring-loaded terminal block according to claim 1, characterized in that: The integrated spring clip (13) has two symmetrically arranged deformable parts (131) and a connecting part (132) for connecting the two deformable parts (131). The connecting part (132) is integrally connected between the two deformable parts (131). The deformable parts (131) and the connecting part (132) together form a U-shape at the connection position. The end of the deformable part (131) away from the connecting part (132) abuts against the conductive post (151).

3. The integrated spring-loaded terminal block according to claim 2, characterized in that: The support base (14) is provided with a positioning groove (141) for the connection part (132) and the deformation part (131) to be inserted.

4. The integrated spring-loaded terminal block according to claim 3, characterized in that: The upper housing (11) is provided with a positioning post (111) at the corresponding position of the positioning groove (141) for extending between the two deformable parts (131).

5. The integrated spring-loaded terminal block according to claim 2, characterized in that: The conductive base plate (15) is provided with a pre-fixing piece (152) for pre-fixing the integrated spring piece (13), and the connecting part (132) is provided with a through hole (1321) for inserting the pre-fixing piece (152).

6. The integrated spring-loaded terminal block according to claim 2, characterized in that: The conductive base plate (15) is provided with at least two pre-fixing pieces (152) for pre-fixing the integrated spring piece (13). The two pre-fixing pieces (152) are arranged at intervals and form a pre-fixing groove (1521) for the integrated spring piece (13) to be inserted.

7. The integrated spring-loaded terminal block according to claim 3, characterized in that: The number of the integrated spring pieces (13) is several, and the positioning groove (141) is provided in a one-to-one correspondence with each of the integrated spring pieces (13).

8. The integrated spring-loaded terminal block according to claim 1, characterized in that: The upper shell (11) is provided with a first dovetail block (114) and a first dovetail groove (115) on two opposite outer side walls, and the lower shell (12) is provided with a second dovetail block (122) and a second dovetail groove (123) on two opposite outer side walls.

9. The integrated spring-loaded terminal block according to claim 1, characterized in that: The lower housing (12) is provided with a support foot (17) on its lower side, and the support foot (17) is slidably connected to the lower housing (12).

10. The integrated spring-loaded terminal block according to claim 5, characterized in that: The lower housing (12) has a snap-fit ​​protrusion (121) on its side wall for connecting with the upper housing (11), and the upper housing (11) has a through groove (113) on its side wall that cooperates with the snap-fit ​​protrusion (121).

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