A rotatable terminal block

Abstract

This utility model belongs to the field of terminal block technology, specifically relating to a rotatable terminal block, including a terminal base, a terminal head, and a shaft. The terminal base includes a base plate and a connecting portion, the connecting portion being integrally formed with the base plate. The terminal head includes a connector at the head end and a wire clamping barrel at the tail end, the connector being integrally formed with the wire clamping barrel, and a wire groove being formed on the wire clamping barrel. The connecting portion and the connector are connected by a shaft, and the terminal head and the terminal base can rotate relative to each other in a horizontal or vertical plane. The terminal block of this solution can rotate freely in a horizontal or vertical direction, and different rotation directions of the terminal block can be selected according to the situation at the moving parts.

Description

Technical Field

[0001] This utility model belongs to the field of terminal block technology, and specifically relates to a rotatable terminal block. Background Technology

[0002] In existing technologies, terminal blocks are widely used in aviation electrical systems and their testing systems due to their simple and reliable connection structure. Existing terminal blocks are typically directly connected to the terminals using screws. Because of this fixed connection method, the orientation is fixed after current or information transfer is established, which cannot meet the wiring requirements near moving parts. Cables near moving parts are susceptible to stress, causing fatigue damage to the conductors and affecting electrical performance. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the prior art and provide a rotatable terminal block. The terminal block of this device is composed of several parts such as terminal base, shaft and terminal head, and has two structural forms. It can rotate freely in the horizontal or vertical direction, and the terminal block with different rotation direction can be selected according to the situation of the moving parts.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a rotatable terminal block, comprising a terminal block, a terminal head, and a shaft;

[0005] The terminal block includes a base plate and a connecting part, the connecting part being integrally formed with the base plate. The terminal head includes a connecting head at the head end and a wire pressing barrel at the tail end, the connecting head being integrally formed with the wire pressing barrel, and a wire groove being formed on the wire pressing barrel. The connecting part and the connecting head are connected by a shaft, and the terminal head and the terminal block can rotate relative to each other in a horizontal or vertical plane.

[0006] As a preferred embodiment, the circumferential end of the connector includes a smooth transition surface and a corner side surface; the connection between the smooth transition surface and the corner side surface forms a stop limiting angle, which limits the rotation angle of the terminal head relative to the terminal seat.

[0007] As a preferred embodiment, the substrate has a fixing hole for connecting to a terminal block.

[0008] As a preferred embodiment, the wire groove is located on the tail end face of the connector, and the wire groove is a cavity with one end open; the bottom and / or sidewall of the wire groove are formed with observation holes.

[0009] As a preferred embodiment, the portion from the end of the connector to the terminal block is provided with a reinforcing section, the thickness of which gradually increases from the connector to the wire clamp.

[0010] As a preferred embodiment, the corners of the terminal block are rounded and chamfered.

[0011] As a preferred embodiment, the two ends of the shaft are formed with limiting heads.

[0012] As a preferred embodiment, a rotating groove is formed on the connecting part; the connector is installed in the rotating groove, and the two side plates of the rotating groove and the connector are respectively formed with shaft holes for installing shaft parts.

[0013] As a preferred embodiment, the terminal head and the terminal base are rotatable relative to each other in a horizontal plane, the axis of the shaft is perpendicular to the fixed end face of the substrate, and one side of the opening of the rotating groove is provided on the substrate.

[0014] As a preferred embodiment, the terminal head and the terminal base are able to rotate relative to each other in a vertical plane; the axis of the shaft is parallel to the fixed end face of the substrate, and the opening of the rotating groove is located on the same side of the substrate.

[0015] As a preferred embodiment, the surface of the rotatable terminal is coated with an anti-oxidation and wear-resistant coating.

[0016] One of the beneficial effects is that this utility model designs a rotatable terminal block for specific wiring requirements near moving parts in aviation electrical systems and testing systems. It is composed of a terminal block, a shaft, and a terminal head, and has a structure that can rotate freely in either a vertical or horizontal direction. This type of terminal block is simple to install, easy to use, and quick to replace. It is particularly suitable for wiring near moving parts (such as landing gear, horizontal stabilizer, tilting mechanism, etc.), and can effectively reduce the stress during the movement of the wiring harness, thereby reducing or avoiding fatigue damage to the wiring harness and extending its service life.

[0017] Secondly, this solution takes into account the need to avoid rotating the terminal to an unsuitable position and prevent damage to the terminal and related equipment due to friction. Specifically, the structure of the terminal head has been improved by setting a stop and limit angle at the tip of the terminal head. This stop and limit angle restricts the rotation angle of the terminal head. When the stop and limit angle forms abutment with the bottom of the rotation groove, the terminal head cannot continue to rotate in that direction, thus limiting the rotation angle. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the 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 of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A perspective view of the rotatable terminal block of Embodiment 1: rotating in the vertical direction;

[0020] Figure 2 This is a cross-sectional view of the rotatable terminal block of Embodiment 1;

[0021] Figure 3 This is an exploded view of the rotatable terminal block of Example 1;

[0022] Figure 4 A perspective view of the rotatable terminal block of Embodiment 2: rotating in the horizontal direction;

[0023] Figure 5 This is a cross-sectional view of the rotatable terminal block of Embodiment 2;

[0024] Figure 6 This is an exploded view of the rotatable terminal block of Example 2;

[0025] Figure 7 Terminal head structure diagram to accommodate 90° rotation angle;

[0026] Figure 8 Terminal head structure diagram to accommodate a 120° rotation angle;

[0027] Figure 9 Terminal head structure diagram to accommodate a 135° rotation angle;

[0028] Figure 10 This is a side view of the rotatable terminal block of Embodiment 1;

[0029] Figure 11 The rotatable terminal block of Example 1 Figure 10 Sectional view at point AA: The stop limit angle is 90°;

[0030] Figure 12 The rotatable terminal block of Example 1 Figure 10 Sectional view at point AA: The stop limit angle is 120°;

[0031] Figure 13 The rotatable terminal block of Example 1 Figure 10 Sectional view at point AA: The stop limit angle is 135°;

[0032] Marked in the image:

[0033] 1. Terminal block; 11. Base plate; 12. Connecting part; 121. Side plate; 13. Rotating groove; 131. Groove opening; 14. Shaft hole; 15. Fixing hole; 16. Rounded chamfer; 17. Fixing end face; 18. Groove bottom; 19. Side plate.

[0034] 2. Terminal head, 21. Connector head, 22. Wire clamp, 23. Through hole, 24. Wire groove, 25. Smooth transition surface, 26. Corner side, 27. Stop and limit angle, 28. Reinforcement part, 29. Observation hole;

[0035] 3. Shaft, 31. Limit head. Detailed Implementation

[0036] The present invention will now be described in detail through exemplary embodiments. However, it should be understood that, without further description, elements, structures, and features in one embodiment may be advantageously incorporated into other embodiments.

[0037] It should be noted that, unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "a," "an," or "the," and similar words used in this utility model patent application specification and claims do not express a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" indicate that the elements or objects preceding "comprising" encompass the elements or objects listed following "comprising" or "including" and their equivalents, but do not exclude other elements or objects having the same function.

[0038] Example 1

[0039] This embodiment provides a rotatable terminal block, including a terminal block 1, a shaft 3, and a terminal head 2. The terminal block 1 is used to connect to a terminal post, the terminal head 2 is used to connect to a wire, and the shaft 3 is used to achieve a rotatable connection between the terminal block 1 and the terminal head 2. This design helps to reduce the stress on the wire harness during movement, prevents fatigue damage to the wire under stress, and avoids affecting electrical performance.

[0040] In this embodiment, the terminal head 2 rotates relative to the terminal base 1 along the vertical plane as an example. The vertical plane in this solution refers to the plane perpendicular to the substrate 11 (or the fixed end face 17). The specific structure is described as follows:

[0041] As shown in the figure, the terminal block 1 includes a base plate 11 and a connecting portion 12 integrally formed with the base plate 11. The connecting portion 12 is disposed near the tail end of the base plate 11 and is located on the side of the base plate 11 facing away from the fixed end face 17. A rotating groove 13 for mounting the terminal head 2 is formed on the connecting portion 12, and the opening direction of the rotating groove 13 is perpendicular to the fixed end face 17 of the base plate 11. Parallel side plates 121 are arranged on both sides of the rotating groove 13, and one side edge of the two side plates 121 is connected, with the connection point of the two side plates 121 forming the groove bottom 18. A side slot 131 communicating with the rotating groove 13 is formed on one side of the base plate 11, and the side slot 131 is used to ensure that the rotation of the terminal head 2 is not obstructed by this side. A shaft hole 14 penetrating the entire connecting portion 12 is formed, and the function of the shaft hole 14 is to mount a shaft member 3. The axis of the shaft member 3 is mounted parallel to the end face of the base plate 11. The substrate 11 has a fixing hole 15 near the head end, which is used to fix the terminal block 1 to the terminal post.

[0042] The terminal head 2 includes a connector 21 at its head end and a wire clamping tube 22 at its tail end. The connector 21 has a flat structure and is located inside the rotating groove 13, allowing it to rotate at a certain angle within the groove. The connector 21 has a through hole 23 for inserting a shaft 3, which corresponds to the shaft hole 14. The wire clamping tube 22 has a wire groove 24, which is formed by opening on the end face of the wire clamping tube 22. The inside of the wire groove 24 is used to fix the wire harness; specifically, the end of the wire harness passes through the wire groove 24 and is fixed inside the wire groove 24 by crimping or welding. To facilitate observation of the fixing effect of the wire harness in the wire groove 24, an observation hole 29 can be provided at the bottom of the wire groove 24. The condition of the wire harness end can be checked through the observation hole 29 to ensure reliable connection.

[0043] In this design, the shaft 3 is a rivet. The shaft 3 passes through the shaft hole 14 of the terminal block 1, the through hole 23 of the terminal head 2, and another shaft hole 14 of the terminal block 1. Limiting components or machined limiting structures are provided at both ends of the shaft 3. For example, the end of the rivet can be machined into a limiting head 31 to prevent the shaft 3 from coming out of the hole, ensuring the connection between the terminal block 1 and the terminal head 2. The axis of the shaft 3 is parallel to the substrate 11, so that the terminal head 2 rotates vertically along the direction perpendicular to the substrate 11 during rotation within the rotating groove 13.

[0044] Based on the above structure, in order to further improve the effect and prevent the terminal head 2 from rotating to the point where the wiring terminal comes into contact with the equipment, the connector 21 of the terminal head 2 is configured as follows: the connector 21 is a flat structure, the tail end of the connector 21 is connected to the wire clamp 22, and a stop limiting angle 27 is machined on the circumferential outer edge of the connector 21. The two sides of the stop limiting angle 27 are a smooth transition surface 25 and a corner side 26, respectively. That is, the included angle formed by the stop limiting angle 27 is the arc included angle formed at the connection of the smooth transition surface 25 and the corner side 26. Specifically, the rotation radius from the point on the smooth transition surface 25 to the stop limiting angle 27 at the center axis of the shaft 3 gradually increases. Since the rotation radius at the stop limiting angle 27 is greater than the clearance between the bottom 18 of the rotating groove 13 and the center axis of the shaft 3, the bottom 18 of the groove acts as a stop for the stop limiting angle 27. When the stop limiting angle 27 abuts against the groove bottom 18, it prevents the terminal head 2 from continuing to rotate in that direction relative to the terminal seat 1. The stop limiting angle 27 can be machined into different angles, thereby creating different restrictions on the rotation angle of the terminal head 2, such as... Figure 7-9 As shown, the stop limiting angle 27 is machined to 90°, 120° and 135°, etc. The above angles are only examples and the stop limiting angle 27 is not limited to the above angles.

[0045] In this solution, in order to improve the structural strength of the component, a reinforcing part 28 is formed at the connection between the connector 21 and the wire clamp 22. The reinforcing part 28 has a smooth and irregular structure. From the connector 21 to the wire clamp 22, the overall thickness of the reinforcing part 28 gradually increases, which effectively strengthens the strength of the intermediate connection and thus improves the service life of the component.

[0046] In addition, to remove burrs from the edges of terminal block 1 and terminal head 2, making them more aesthetically pleasing and practical, the edges of terminal block 1 and terminal head 2 can be rounded with a 16mm chamfer. The outer surfaces of all components of the terminal block are coated with an anti-oxidation and wear-resistant coating to reduce corrosion and oxidation from the external environment and wear during use, thereby further extending the service life of the terminal block.

[0047] The following describes how to use the rotatable terminal block: Connect the terminal block 1 and the terminal head 2 together using the shaft (rivet) 3. When using, fix the end of the wire in the wire groove 24 by crimping or welding, and then fix the terminal block 1 on the terminal post.

[0048] In this solution, the rotatable terminal block is easy to install, convenient to use, and quick to replace. It is suitable for wiring near moving parts, such as landing gear, horizontal tail, and tilting mechanism. It can effectively reduce the stress on the wiring harness during movement and extend the service life of the wiring harness.

[0049] Example 2

[0050] This embodiment provides a rotatable terminal block, including a terminal block 1, a shaft 3, and a terminal head 2. The terminal block is used to connect to a terminal post, the terminal head 2 is used to connect to a wire harness, and the shaft 3 is used to achieve a rotatable connection between the terminal block 1 and the terminal head 2. This design helps to reduce the stress on the wire harness during movement, prevents fatigue damage to the wire harness under stress, and avoids affecting electrical performance.

[0051] In this embodiment, the terminal head 2 is rotated relative to the terminal base 1 along the horizontal plane as an example. The horizontal plane in this solution refers to the plane parallel to the substrate 11 (or the fixed end face 17). The specific structure is described as follows:

[0052] As shown in the figure, the terminal block 1 includes a base plate 11 and a connecting portion 12 integrally formed with the base plate 11. The connecting portion 12 is disposed near the tail end of the base plate 11 and is located on the side of the base plate 11 facing away from the fixed end face 17. A rotating groove 13 for mounting the terminal head 2 is formed on the connecting portion 12. The opening direction of the rotating groove 13 is parallel to the fixed end face 17 of the base plate 11. Parallel side plates 121 are arranged on both sides of the rotating groove 13, and one side of each side plate is connected, with the connection point of the two side plates 121 forming the groove bottom 18. A through-hole 14 is formed on the connecting portion 12, and the function of the through-hole 14 is to mount a shaft 3. The axis of the shaft 3 is perpendicular to the fixed end face of the base plate 11. A fixing hole 15 is provided near the head end of the base plate 11 for fixing the terminal block 1 to the terminal post.

[0053] The terminal head 2 includes a connector 21 at its head end and a wire clamping tube 22 at its tail end. The connector 21 has a flat structure and is located inside the rotating groove 13, allowing it to rotate at a certain angle within the groove. The connector 21 has a through hole 23 for inserting a shaft 3, which corresponds to the shaft hole 14. The wire clamping tube 22 has a wire groove 24, formed by opening the bottom end face of the wire clamping tube 22. The inside of the wire groove 24 is used to fix the wire harness; specifically, the end of the wire harness passes into the wire groove 24 and can be fixed inside the wire groove 24 by crimping or welding. To facilitate observation of the fixing effect of the wire harness inside the wire groove 24, an observation hole 29 can be provided at the bottom of the wire groove 24. The condition of the end of the wire harness can be checked through the observation hole 29 to ensure reliable connection.

[0054] The shaft 3 adopts a rivet structure, passing through the shaft hole 14 of the terminal base 1, the through hole 23 of the terminal head 2, and another shaft hole 14 of the terminal base 1. Limiting components or machined limiting structures are provided at both ends of the shaft 3; for example, the end of the rivet can be machined into a limiting head 31 to prevent the shaft 3 from coming out of the hole, ensuring the connection effect between the terminal base 1 and the terminal head 2. The central axis of the shaft 3 is perpendicular to the base plate 11 (fixed end face 17), so that the terminal head 2 rotates along a horizontal plane parallel to the base plate 11 during rotation within the rotating groove 13.

[0055] Based on the above structure, in order to further improve the effect and prevent the terminal head 2 from rotating to the point where the wiring terminal comes into contact with the equipment, the structure of the terminal head 2 is further optimized. The connector 21 of the terminal head 2 is set as follows: the connector 21 is a flat structure, and the tail end of the connector 21 is connected to the wire clamp 22. A stop limiting angle 27 is machined on the circumferential outer edge of the connector 21. The two sides of the stop limiting angle 27 are a smooth transition surface 25 and a corner side 26, respectively. That is, the included angle formed by the stop limiting angle 27 is the included angle formed at the connection of the smooth transition surface 25 and the corner side 26. Specifically, the rotation radius from the point of the smooth transition surface 25 to the stop limiting angle 27 at the center of the shaft 3 gradually increases. Since the rotation radius at the stop limiting angle 27 is greater than the clearance between the bottom 18 of the rotating groove 13 and the central axis of the shaft 3, the bottom 18 of the groove acts as a stop for the stop limiting angle 27. When the stop limit angle 27 comes into contact with the bottom of the groove 18, it will prevent the terminal head 2 from continuing to rotate in that direction relative to the terminal seat 1. The stop limit angle 27 can be processed into different angles. For example, as shown in the figure, the stop limit angle 27 can be processed into 90°, 120° and 135°, etc. The above angles are only examples and the stop limit angle 27 is not limited to the above angles.

[0056] In this solution, in order to improve the structural strength of the component, a reinforcing part 28 is formed at the connection between the connector 21 and the wire clamp 22. The reinforcing part 28 has a smooth and irregular structure. From the connector 21 to the wire clamp 22, the overall thickness of the reinforcing part 28 gradually increases, thereby effectively strengthening the strength of the intermediate connection and thus improving the service life of the component.

[0057] In addition, to remove burrs from the edges and corners of terminal block 1 and terminal head 2, making them more aesthetically pleasing and practical, the main edges and corners of terminal block 1 and terminal head 2 can be rounded with a 16mm chamfer. The outer surfaces of all components of the terminal block are coated with an anti-oxidation and wear-resistant coating to reduce corrosion and oxidation from the external environment and wear during use, thereby further extending the service life of the terminal block.

[0058] The following describes how to use the rotatable terminal block: Connect the terminal block 1 and the terminal head 2 together using the shaft (preferably a rivet) 3. When in use, fix the end of the wire in the wire groove 24 by crimping or welding, and then fix the terminal block 1 on the terminal post.

[0059] In this solution, the rotatable terminal block is easy to install, convenient to use, and quick to replace. It is suitable for wiring near moving parts, such as landing gear, horizontal tail, and tilting mechanism. It can effectively reduce the stress on the wiring harness during movement and extend the service life of the wiring harness.

[0060] In this solution, users can choose the rotatable terminal block that rotates in the vertical direction of Embodiment 1 and / or the rotatable terminal block that rotates in the horizontal direction of Embodiment 2, according to their actual needs.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A rotatable terminal block, characterized in that: It includes a terminal block (1), a terminal head (2), and a shaft (3); The terminal block (1) includes a base plate (11) and a connecting part (12). The connecting part (12) is integrally formed with the base plate (11). The terminal head (2) includes a connector (21) at the head end and a wire clamping barrel (22) at the tail end. The connector (21) and the wire clamping barrel (22) are integrally formed. A wire groove (24) is formed on the wire clamping barrel (22). The connecting part (12) and the connector (21) are connected by a shaft (3). The terminal head (2) and the terminal block (1) can rotate relative to each other in a horizontal or vertical plane.

2. A rotatable terminal block according to claim 1, characterized in that: The connector (21) has a smooth transition surface (25) and a corner side surface (26) circumferentially at its head end; the connection between the smooth transition surface (25) and the corner side surface (26) forms a stop limiting angle (27), which limits the rotation angle of the terminal head (2) relative to the terminal seat (1).

3. A rotatable terminal block according to claim 1, characterized in that: The substrate (11) has a fixing hole (15) for connecting to the terminal block.

4. A rotatable terminal block according to claim 1, characterized in that: The groove (24) is located on the end face of the connector (22), and the groove (24) is a cavity with one end open; the bottom and / or sidewall of the groove (24) are formed with observation holes (29).

5. A rotatable terminal block according to claim 1, characterized in that: The portion from the tail end of the connector (21) to the terminal (22) is provided with a reinforcing part (28), the thickness of which gradually increases from the connector (21) to the wire clamp (22).

6. A rotatable terminal block according to claim 1, characterized in that: The corners of the terminal block (1) are rounded with chamfers (16) for transition.

7. A rotatable terminal block according to claim 1, characterized in that: The two ends of the shaft (3) form limit heads (31).

8. A rotatable terminal block according to claim 1, characterized in that: A rotating groove (13) is formed on the connecting part (12); the connector (21) is installed in the rotating groove (13), and the two side plates of the rotating groove (13) and the connector (21) are respectively formed with shaft holes (14) for installing shafts (3).

9. A rotatable terminal block according to claim 8, characterized in that: The terminal head (2) and the terminal base (1) can rotate relative to each other in the horizontal plane. The axis of the shaft (3) is perpendicular to the fixed end face (17) of the substrate (11). The opening of the groove (131) of the rotating groove (13) is provided on the substrate (11).

10. A rotatable terminal block according to claim 8, characterized in that: The terminal head (2) and the terminal base (1) can rotate relative to each other in the vertical plane; the axis of the shaft (3) is parallel to the fixed end face (17) of the substrate (11), and the slot (131) of the rotating groove (13) is located on the same side of the substrate (11).

11. A rotatable terminal block according to any one of claims 1-10, characterized in that: The surface of the rotatable terminal block is coated with an anti-oxidation and wear-resistant coating.

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