A rotatable terminal block and method of installing the same

Abstract

The application belongs to the technical field of terminal blocks, and particularly relates to a rotatable terminal block and a mounting method thereof. The rotatable terminal block comprises a seat body and a terminal, the terminal is arranged in a row on the seat body along a first direction, the seat body comprises a base and a cover, the base and the cover are relatively buckled and fixedly connected, the terminal comprises a terminal seat and a terminal head which can rotate relative to each other, the terminal seat is mounted between the base and the cover, and the terminal head can rotate relative to the terminal seat along a horizontal plane or a vertical plane. The device is suitable for wiring near a moving part, can effectively reduce stress in the movement of a wire harness, and prolongs the service life of the wire harness.

Description

Technical Field

[0001] This invention belongs to the field of terminal block technology, specifically relating to a rotatable terminal block and its installation method. 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. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a rotatable terminal block and its installation method. This device is suitable for wiring near moving parts and can effectively reduce the stress during the movement of the wire harness and extend the service life of the wire harness.

[0004] One objective of this invention is to provide a rotatable terminal block, comprising a base and terminals; the terminals are arranged in a row on the base along a first direction, the base comprising a base and an end cap, the base and the end cap being snapped together and fixedly connected, the terminals comprising a terminal base and a terminal head that can rotate relative to each other; the terminal base is fixed between the base and the end cap, and the terminal head can rotate relative to the terminal base along a horizontal or vertical plane.

[0005] As a preferred embodiment, a groove I is formed on the fastening surface of the base, and a groove II is formed on the fastening surface of the end cap. Grooves I and II are joined together to form a fixing cavity for fixing the wiring terminal.

[0006] As a preferred embodiment, the fixed cavity includes a cylindrical cavity and a square cavity, the cylindrical cavity and the square cavity are axially connected, the cylindrical cavity is adapted to the external structure of the junction box I, and the square cavity is adapted to the external structure of the adapter I.

[0007] As a preferred embodiment, the terminal block includes an integrally formed adapter I and a wiring bin I, wherein the adapter I has a rotating groove and the wiring bin I has a wire groove I; The terminal head includes an integrally formed adapter II and a wiring barrel II, with a wire groove II formed on the wiring barrel II; the adapter II is placed in the rotating groove, and the terminal base and the terminal head are rotatably connected by a shaft.

[0008] As a preferred embodiment, the wire groove I is formed on the tail end face of the adapter I, and the wire groove I is a cavity with one end open; the wall of the wiring drum I is provided with an observation hole I that penetrates the wall; And / or; the wire groove II is formed on the tail end face of the adapter II, and the wire groove II is a cavity with one end open; an observation hole II is formed on the wall of the wiring bucket II, penetrating the wall.

[0009] As a preferred embodiment, a flexible ring is also included, which is used to fit onto the terminal block I of the terminal block and is placed inside the fixed cavity.

[0010] As a preferred embodiment, the base is provided with a groove plate I along the first direction, and the end cover is provided with a groove plate II along the first direction. The groove plate I and the groove plate II are arranged parallel to each other, and the base and the end cover are fastened to each other to form an opening groove between the groove plate I and the groove plate II. The terminal head can rotate relative to the terminal seat along the horizontal plane in the opening groove.

[0011] As a preferred embodiment, the base is provided with a half-groove I, and the end cap is provided with a half-groove II. The half-groove I and half-groove II are provided correspondingly, and the base and the end cap are fastened to each other so that the corresponding half-groove I and half-groove II form a series of independently provided opening slots. The terminal head can rotate relative to the terminal base along the vertical plane in the opening slot.

[0012] As a preferred embodiment, the end of the shaft is formed with a limiting shaft head, and grooves for accommodating the limiting shaft head are formed on the inner walls of the opening groove on both sides.

[0013] As a preferred embodiment, the surface of the terminal block is coated with an anti-oxidation and wear-resistant coating.

[0014] As a preferred embodiment, the head end of the adapter II includes a smooth transition surface and a corner side surface in the circumferential direction; the connection between the smooth transition surface and the corner side surface forms a stop limiting angle, and the stop limiting angle abuts against the bottom of the rotating groove to limit the rotation angle of the terminal head relative to the terminal seat.

[0015] The second objective of this invention is to provide an installation method for the rotatable terminal block described in any of the above claims. The terminal head and the terminal block are connected together by a shaft to form a terminal block. The ends of the corresponding wires are fixed in the wire grooves I and II at the ends of the terminal block, respectively. A flexible ring is fitted onto the outside of the terminal block I. The terminal block with the wire installed is then fixed on the base. The base is covered with an end cap and the two are fixedly connected.

[0016] One beneficial effect of this invention is that, through improvements including a base and terminals arranged within the base, the terminals can be fixed in various ways within the base. This allows the wires on both sides of the terminal block to rotate freely in the horizontal or vertical direction, effectively meeting the wiring needs near moving parts, preventing fatigue damage to the wires due to stress near moving parts, avoiding impact on electrical performance, and enhancing the reliability and durability of the wiring connection. The rotatable terminal block is suitable for wiring near moving parts (such as landing gear, horizontal stabilizer, tilting mechanisms, etc.), effectively reducing stress during wire harness movement and extending the service life of the wire harness.

[0017] Secondly, to ensure the effective installation of the terminal block and the base, the present invention includes a flexible ring fitted onto the terminal block's junction box. This ensures the assembly of the base and the terminal block even when the junction box deforms after wire crimping. During use, the flexible ring is installed on the terminal block of the terminal block, guaranteeing a tight assembly between the terminal block and the base via the flexible ring.

[0018] Thirdly, in order to avoid the terminals rotating to an unsuitable position and to prevent damage from friction between the terminals and related equipment, this solution has made special improvements to the structure of the terminal head. The terminal head is provided with a stop limit angle, which limits the rotation angle of the terminal head. When the stop limit angle forms abutment with the bottom of the rotating groove, the terminal head will not be able to continue to rotate in that direction, thus limiting the rotation angle.

[0019] Fourth, this solution optimizes the installation method of the rotatable terminal block. In use, the wires are crimped or soldered to the terminal head and terminal block respectively, then installed on the terminal base, the terminal cover is closed, and the screws are used to secure the connection. When the terminal block needs to be replaced, the screws are removed, the terminal cover is opened, and a new terminal head and terminal block are replaced. This rotatable terminal block installation method is simple to operate, convenient to use, and quick to replace. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the invention 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 invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A perspective view of the terminal block in Embodiment 1 of the present invention: rotated horizontally; Figure 2 This is an exploded view of the terminal block in Embodiment 1 of the present invention; Figure 3 This is a structural diagram of the end cap of Embodiment 1 of the present invention; Figure 4 This is a structural diagram of the base of Embodiment 1 of the present invention; Figure 5 This is a perspective view of the terminal block in Embodiment 2 of the present invention: rotated vertically; Figure 6 This is an exploded view of the terminal block in Embodiment 2 of the present invention; Figure 7 This is a structural diagram of the end cap of Embodiment 2 of the present invention; Figure 8 This is a structural diagram of the base body according to Embodiment 2 of the present invention; Figure 9 This is a schematic diagram showing the horizontal installation of the terminal blocks of the present invention; Figure 10 This is a schematic diagram showing the vertical installation of the terminal blocks of the present invention; Figure 11 This is a perspective view of the wiring terminals of the present invention; Figure 12 Front view of the wiring terminals; Figure 13 For along Figure 12 A sectional view at point AA; Figure 14 This is a side view of the wiring terminals; Figure 15 For along Figure 14 A cross-sectional view at BB; Figure 16 A schematic diagram showing the stop and limit angles at different angles; Figure 17 Side view of the terminal block: rotated horizontally; Figure 18 For the terminal block edge Figure 17 Sectional view at CC: No stop limit angle is set; Figure 19 For the terminal block edge Figure 17 Sectional view at CC: The stop limit angle is 90°; Figure 20 For the terminal block edge Figure 17 Sectional view at CC: The stop limit angle is 120°; Figure 21 For the terminal block edge Figure 17 Cross-sectional view at point CC; the stop limit angle is 135°; Marked in the image: seat body; Base, 21, fixing hole I, 22, groove plate I, 221, groove I, 23, half groove I, 231, side half groove I, 24, fixing edge, 25, fixing hole III; End cap, 31, fixing hole II, 32, groove plate II, 321, groove II, 33, half groove II, 331, side half groove II; Fixed cavity, 41. Cavity groove I, 42. Cavity groove II, 43. Cylindrical cavity, 44. Square cavity; Terminal blocks; Terminal block, 61, adapter I, 62, junction box I, 621, observation hole I, 63, mounting hole, 64, wire groove I, 65, rotating groove, 66, side plate, 67, shaft hole, 68, groove bottom; Terminal head, 71, adapter II, 711, smooth transition surface, 712, corner side, 713, stop limit angle, 72, junction box II, 721, observation hole II, 73, wire groove II, 74, through hole, 75, reinforcement; Shaft component, 81, limiting shaft head; Opening groove; 10. Flexible coil. Detailed Implementation

[0022] 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.

[0023] 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 invention pertains. The terms "a," "an," or "the," and similar words used in the specification and claims of this patent application do not express a limitation of quantity, 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.

[0024] Example 1 like Figure 1-4 As shown, this embodiment provides a rotatable terminal block, including a base 1 and a terminal block 5 disposed within the base 1. The terminal block 5 is positioned along a first direction L (L direction is as shown in the image). Figure 18 As shown, the terminals 5 are arranged in a row inside the base 1, wherein the base 1 is formed by the base 2 and the end cap 3 fastening together. A fixing cavity 4 is formed at the fastening surface of the base 2 and the end cap 3. The function of the fixing cavity 4 is to fix the head end of the terminal 5. An opening groove 9 is formed on one side of the fixing cavity 4. The tail end of the terminal 5 is located in the opening groove 9 and can rotate relative to the head end of the terminal 5.

[0025] In this design, the terminal block 5 includes a terminal base 6, a terminal head 7, and a shaft 8. The terminal base 6 serves as the head end of the terminal block 5, and the terminal head 7 serves as the tail end of the terminal block 5. The shaft 8 is used to enable a rotatable connection between the terminal base 6 and the terminal head 7. Preferably, a plurality of terminal blocks 5 are provided, and the terminal blocks 5 are arranged along a first direction L (horizontal direction) inside the housing 1, wherein the housing 1 has a plurality of fixing cavities 4 along the first direction L corresponding to the number and size of the terminal blocks 5.

[0026] In this embodiment, the terminal block 6 includes an adapter I61 and a junction box I62, which are integrally formed. The tail end of the junction box I62 is connected to the adapter I61. A wire groove I64 is provided on the junction box I62. The wire groove I64 is a cavity opened along the central axis on the end face of the head end of the junction box I62 for fixing the end of the wire. Specifically, the end of the wire can be fixed inside the junction box I62 by crimping or welding. To facilitate observation of the wire connection inside the wire groove I64, at least one observation hole I621 is also provided on the side wall of the junction box I62 to facilitate checking the wire status and ensure reliable connection. A rotating groove 65 is formed on the adapter I61. The rotating groove 65 has a structure with a three-sided groove opening. Corresponding shaft holes 67 are formed on the parallel side plates 66 on both sides of the rotating groove 65.

[0027] In this embodiment, the terminal head 7 includes an adapter II 71 and a junction box II 72, which are integrally formed. A wire groove II 73 is formed on the junction box II 72. The wire groove II 73 is formed on the end face of the tail end of the junction box II 72 and is a cavity with one open end, opened along its axial direction. The wire groove II 73 is used to fix the wire on the other side, and the end of the wire is fixed inside the wire groove II 73 by crimping or welding. The adapter II 71 has a flat head structure, and a through hole 74 corresponding to the shaft hole 67 is provided near its center. After the adapter II 71 is placed in the rotating groove 65, the shaft hole 67 and the through hole 74 are aligned. Then, a shaft 8 is inserted into the shaft hole 67 and the through hole 74, thereby realizing a rotatable connection between the terminal base 6 and the terminal head 7. To facilitate the inspection of the wire connection inside the junction box II 72, an observation hole II 721 is provided on the side wall of the junction box II 72 to facilitate the inspection of the wire condition and ensure reliable connection. Meanwhile, in order to improve the strength of the terminal head 7, a reinforcing part 75 is formed at the connection between the adapter II 71 and the terminal block II 72. The thickness of the reinforcing part 75 gradually increases from the adapter II 71 to the terminal block II 72, thereby improving its structural strength.

[0028] In this design, the shaft 8 is made of rivets. The limiting shaft head 81 at both ends of the rivets prevents the shaft 8 from coming off, thereby ensuring a reliable connection between the terminal block 6 and the terminal head 7.

[0029] In a typical embodiment of the present invention, the base 1 can adopt the following structure: the base 1 is formed by the mating of the base body 2 and the end cap 3. A groove I 41 is formed on the mating surface of the base body 2; a groove II 42 is formed on the mating surface of the end cap 3. The grooves of groove I 41 and groove II 42 are joined to form a fixing cavity 4. The axial direction of the fixing cavity 4 is set along the D direction. The fixing cavity 4 is used to fix the terminal block 6. Specifically, the terminal block I 62 is fixed inside the fixing cavity 4. In order to avoid deformation of the root of the terminal block I 62 after crimping and affecting the installation, after the wire is crimped inside the terminal block I 62, a flexible ring 10 is fitted on the outside of the terminal block I 62. The flexible ring 10 can be a rubber ring. The flexible material of the flexible ring 10 can fill the gap between the terminal block I 62 and the fixing cavity 4, thereby ensuring the firmness of the terminal block 6 and solving the problem of deformation of the root of the terminal block I 62 due to wire crimping, which affects the installation.

[0030] In this embodiment, an opening groove 9 is formed on one side of the base 1 along the horizontal direction. The structure of the opening groove 9 is composed of a groove plate I 22 on the base 2 and a groove plate II 32 on the end cover 3. The groove plate I 22 is set on the base 2 along the first direction L, and the groove plate II 32 is set on the end cover 3 along the first direction L. When the base 2 and the end cover 3 are fastened together, the groove plate I 22 and the groove plate II 32 are arranged in parallel, and an opening groove 9 is formed between them. The opening groove 9 is also opened along the first direction L. The function of the opening groove 9 is that the terminal head 7 and the terminal seat 6 are connected in the opening groove 9, the shaft 8 is located in the opening groove 9, and the terminal seat 7 can rotate relative to the terminal seat 6 in the opening groove 9 along the horizontal plane (this horizontal plane is the plane where the L and D directions are in the figure, which is used as the reference horizontal plane).

[0031] Furthermore, in order to adapt to the external structure of the terminal block 6, the fixing cavity 4 includes a cylindrical cavity 43 and a square cavity 44 along the axial direction. The cylindrical cavity 43 is used to fix and install the junction box I 62, and a flexible ring 10 is fitted on the outside of the junction box I 62. The flexible ring 10 is located between the junction box I 62 and the inner wall of the cylindrical cavity 43. A step is provided in the cylindrical cavity 43 near the square cavity 44. This step can contact one end of the flexible ring 10. The square cavity 44 is adapted to the external structure of the adapter I 61. A stop step is formed at the connection between the square cavity 44 and the cylindrical cavity 43, thereby stopping and limiting the terminal block 6 along the axial direction through the stop step.

[0032] In one embodiment of the present invention, in order to control the rotatable angle range of the terminal head 7 and avoid friction between the terminal head 7 and other devices, the terminal head 7 can be processed as follows: the adapter II 71 of the terminal head 7 is a flat head structure, one end of the adapter II 71 is connected to the terminal block II 72, and the circumferential portion of the other end of the adapter II 71 is processed into a smooth transition surface 711 and a corner side surface 712, wherein the smooth transition surface 711 is an arc-shaped surface structure, the corner side surface 712 is a planar structure, and the smooth transition surface 711... A stop and limiting angle 713 is formed at the connection point with the corner side 712. The stop and limiting angle 713 restricts the rotation angle of the terminal head 7 relative to the terminal seat 6. When the terminal head 7 rotates relative to the terminal seat 6, when the stop and limiting angle 713 abuts against the bottom of the groove 68, the terminal head 7 cannot continue to rotate in that direction, thus creating a stop for the terminal head 7. This is because the rotation radius from the abutment point of the stop and limiting angle 713 to the shaft 3 is greater than the clearance between the bottom of the groove 68 and the shaft 8, thus creating a stopping and limiting effect. Preferably, the stop and limiting angle 713 has a rounded corner structure, thereby reducing wear at this location.

[0033] To achieve better installation and fixation of the terminal block 5, the inner walls on both sides of the opening groove 9 are provided with an equal number of grooves in corresponding positions. Groove plate I22 is provided with groove I221, and groove plate II32 is provided with groove II321. Groove I221 and groove II321 are respectively used to accommodate the limiting shaft heads 81 at both ends of the shaft member 8. Groove I221 and groove II321 not only serve as the accommodating space for the limiting shaft heads 81, but also have a corresponding fixing effect on the shaft member 8. The shaft member 8 also has a corresponding stopping and fixing effect on the terminal block 5 as a whole, preventing the terminal block 5 from coming out.

[0034] In this scheme, another embodiment of the terminal block 5 (not shown in the diagram) is as follows: For example, the limiting shaft heads 81 at both ends of the shaft member 8 can be set to be embedded in the countersunk holes on the outside of the adapter I 61, so that the limiting shaft heads 81 will not be exposed from the outer side of the adapter I 61. In this structure of the terminal block 5, the limiting shaft heads 81 mainly serve to prevent the shaft member 8 from detaching from the connection between the terminal base 6 and the terminal head 7. The limiting shaft heads 81 of this structure of the terminal block 5 do not form a mating relationship with the base 1.

[0035] In this design, the base 2 has a fixing hole I 21, and the end cap 3 has a corresponding fixing hole II 31, thus achieving a fixed connection between the base 2 and the end cap 3. The fixing bottom surface of the base 2 extends to one side to form a fixing edge 24, and a fixing hole III 25 is provided on the fixing edge 24. Thus, by passing a screw through the fixing hole III 25, the base 1 can be fixed in the corresponding position. Of course, screws can also pass through both fixing holes I 21 and fixing holes II 31 simultaneously to achieve a more secure fixing effect.

[0036] This embodiment also provides an installation method for a rotatable terminal block. The terminal head 7 and the terminal block 6 are connected together by the shaft 8 to form a terminal block 5. The ends of the wires are fixed in the wire grooves I 64 and II 73 at both ends of the terminal block 5 by welding or crimping. The flexible ring 10 is fitted on the outside of the wire barrel I 62 of the terminal block 2 to ensure that the root of the wire barrel I 62 is adapted to the fixing cavity 4, so as to achieve a tighter fit. Then, the terminal block 5 with the wire installed is fixed on the base 2. The limiting shaft head 81 is installed in the grooves on both sides of the inner wall of the opening groove 9. The end cover 3 is placed on the base 2 and the two are fixedly connected by the connector (e.g., screw). When the terminal block 5 needs to be replaced, the screw is removed, the end cover 3 is opened, and a new terminal head 7 and terminal block 6 can be replaced.

[0037] In this design, the shaft 8 (rivet), terminal block 6, and terminal head 7 are made of conductive metal. The surface of the terminal 5 is coated with an anti-oxidation and wear-resistant coating, which gives it a certain degree of anti-oxidation and anti-corrosion effect, as well as wear resistance, thus extending the service life of the component. The base 2 and end cover 3 are made of hard, high-strength plastic material, and the flexible ring 10 is made of soft rubber material.

[0038] Example 2 like Figure 5-8 As shown, this embodiment provides a rotatable terminal block, including a base 1 and terminal blocks 5 disposed within the base 1. The terminal blocks 5 are positioned along a first direction L (refer to...). Figure 18 The terminals 5 are arranged in a row inside the base 1 (as shown in the direction). The base 1 is formed by the base 2 and the end cap 3 fastening together. A fixing cavity 4 is formed at the fastening surface of the base 2 and the end cap 3. The fixing cavity 4 is used to fix the head end of the terminal 5. An opening groove 9 is formed on one side of the fixing cavity 4. The opening grooves 9 are set independently. The number of opening grooves 9 is the same as that of the terminal 5. The tail end of the terminal 5 is located in the opening groove 9 and can rotate relative to the head end of the terminal 5.

[0039] In this design, the terminal block 5 includes a terminal base 6, a terminal head 7, and a shaft 8. The terminal base 6 serves as the head end of the terminal block 5, and the terminal head 7 serves as the tail end of the terminal block 5. The shaft 8 is used to enable a rotatable connection between the terminal base 6 and the terminal head 7. Preferably, a plurality of terminal blocks 5 are provided, and the terminal blocks 5 are arranged along a first direction L (horizontal direction) inside the housing 1, wherein the housing 1 has a plurality of fixing cavities 4 along the first direction L corresponding to the number and size of the terminal blocks 5.

[0040] In this embodiment, the terminal block 6 includes an adapter I61 and a junction box I62, which are integrally formed. The tail end of the junction box I62 is connected to the adapter I61. A wire groove I64 is provided on the junction box I62. The wire groove I64 is a cavity opened along the central axis on the end face of the head end of the junction box I62 for fixing the end of the wire. Specifically, the end of the wire can be fixed inside the junction box I62 by crimping or welding. To facilitate observation of the wire connection inside the wire groove I64, at least one observation hole I621 is also provided on the side wall of the junction box I62 to facilitate checking the wire status and ensure reliable connection. A rotating groove 65 is formed on the adapter I61. The rotating groove 65 has a structure with a three-sided groove opening. Corresponding shaft holes 67 are formed on the parallel side plates 66 on both sides of the rotating groove 65.

[0041] In this embodiment, the terminal head 7 includes an adapter II 71 and a junction box II 72, which are integrally formed. A wire groove II 73 is formed on the junction box II 72. The wire groove II 73 is formed on the end face of the tail end of the junction box II 72 and is a cavity with one open end, opened along its axial direction. The wire groove II 73 is used to fix the wire on the other side, and the end of the wire is fixed inside the wire groove II 73 by crimping or welding. The adapter II 71 has a flat head structure, and a through hole 74 corresponding to the shaft hole 67 is provided near its center. After the adapter II 71 is placed in the rotating groove 65, the shaft hole 67 and the through hole 74 are aligned. Then, a shaft 8 is inserted into the shaft hole 67 and the through hole 74, thereby realizing a rotatable connection between the terminal base 6 and the terminal head 7. To facilitate the inspection of the wire connection inside the junction box II 72, an observation hole II 721 is provided on the side wall or bottom of the junction box II 72 to facilitate the inspection of the wire condition and ensure reliable connection. Meanwhile, in order to improve the strength of the terminal head 7, a reinforcing part 75 is formed at the connection between the adapter II 71 and the terminal block II 72. The thickness of the reinforcing part 75 gradually increases from the adapter II 71 to the terminal block II 72, thereby improving its structural strength.

[0042] In this design, the shaft 8 is made of rivets. The limiting shaft head 81 at both ends of the rivets prevents the shaft 8 from coming off, thereby ensuring a reliable connection between the terminal block 6 and the terminal head 7.

[0043] In a typical embodiment of the present invention, the base 1 can adopt the following structure: the base 1 is formed by the mating of the base body 2 and the end cap 3. A groove I 41 is formed on the mating surface of the base body 2; a groove II 42 is formed on the mating surface of the end cap 3. The grooves of groove I 41 and groove II 42 are joined to form a fixing cavity 4. The fixing cavity 4 is used to fix the terminal block 6. Specifically, the terminal block I 62 is fixed inside the fixing cavity 4. In order to avoid deformation of the root of the terminal block I 62 after crimping and thus affecting the installation, after the wire is crimped inside the terminal block I 62, a flexible ring 10 is fitted on the outside of the terminal block I 62. The flexible ring 10 can be a rubber ring. The flexible material of the flexible ring 10 can fill the gap between the terminal block I 62 and the fixing cavity 4, thereby ensuring the firmness of the terminal block 6 and solving the problem of the terminal block I 62 being affected by root deformation.

[0044] One side of the base 1 has a series of independent opening slots 9 along the horizontal direction L. The structure of the opening slot 9 is composed of half slot I 23 of the base 2 and half slot II 33 on the end cover 3. Multiple half slots I 23 are arranged along the first direction on the base 2, and multiple half slots II 33 are arranged along the first direction L on the end cover 3. When the base 2 and the end cover 3 are fastened together, the half slots I 23 and II 33 form the opening slot 9. The function of the opening slot 9 is to connect the terminal head 7 and the terminal seat 6 in the opening slot 9. The terminal seat 7 can rotate relative to the terminal seat 6 in the opening slot 9 along the vertical plane (this vertical plane is the plane where the D and H directions are in the figure, which is used as the reference vertical plane).

[0045] Furthermore, in order to adapt to the external structure of the terminal block 6, the fixing cavity 4 includes a cylindrical cavity 43 and a square cavity 44 along the axial direction. The cylindrical cavity 43 is used to fix and install the junction box I 62, and a flexible ring 10 is fitted on the outside of the junction box I 62. The flexible ring 10 is located between the junction box I 62 and the inner wall of the cylindrical cavity 43. A step is provided in the cylindrical cavity 43 near the square cavity 44. This step can contact one end of the flexible ring 10. The square cavity 44 is adapted to the external structure of the adapter I 61. A stop step is formed at the connection between the square cavity 44 and the cylindrical cavity 43, thereby stopping and limiting the axial movement of the terminal block 6 through the stop step.

[0046] In one embodiment of the present invention, in order to control the rotatable angle range of the terminal head 7 and avoid friction between the terminal head 7 and other devices, the terminal head 7 can be processed as follows: the adapter II 71 of the terminal head 7 is a flat head structure, one end of the adapter II 71 is connected to the terminal block II 72, and the circumferential portion of the other end of the adapter II 71 is processed into a smooth transition surface 711 and a corner side surface 712, wherein the smooth transition surface 711 is an arc-shaped surface structure, the corner side surface 712 is a planar structure, and the smooth transition surface 711... A stop and limiting angle 713 is formed at the connection point with the corner side 712. The stop and limiting angle 713 restricts the rotation angle of the terminal head 7 relative to the terminal seat 6. When the terminal head 7 rotates relative to the terminal seat 6, when the stop and limiting angle 713 abuts against the groove bottom 67, the terminal head 7 cannot continue to rotate in that direction, thus creating a stop for the terminal head 7. This is because the rotation radius from the abutment point of the stop and limiting angle 713 to the shaft 8 is greater than the clearance between the groove bottom 67 and the shaft 8, thus creating a stopping and limiting effect. Preferably, the stop and limiting angle 713 has a rounded corner structure, thereby reducing wear at this location.

[0047] To achieve better installation and fixation of the terminal block 5, the inner walls on both sides of the opening groove 9 are provided with an equal number of grooves in corresponding positions. The half groove I 23 is provided with a side half groove I 231, and the half groove II 33 is provided with a side half groove II 331. The side half groove I 231 and the side half groove II 331 form a complete groove. The grooves are used to accommodate the limiting shaft heads 81 at both ends of the shaft 8. The grooves not only serve as a space for accommodating the limiting shaft heads 81, but also have a corresponding fixing effect on the shaft 8. The shaft 8 also has a corresponding stopping and fixing effect on the terminal block 5 as a whole, which can prevent the terminal block 5 from coming out of the seat 1.

[0048] In this scheme, another embodiment of the terminal block 5 (not shown in the diagram) is as follows: For example, the limiting shaft heads 81 at both ends of the shaft member 8 can be set to be embedded in the countersunk holes on the outside of the adapter I 61, so that the limiting shaft heads 81 will not be exposed from the outer side of the adapter I 61. In this structure of the terminal block 5, the limiting shaft heads 81 mainly serve to prevent the shaft member 8 from detaching from the connection between the terminal base 6 and the terminal head 7. The limiting shaft heads 81 of this structure of the terminal block 5 do not form a mating relationship with the base 1.

[0049] In this design, the base 2 has a fixing hole I 21, and the end cap 3 has a corresponding fixing hole II 31, thus achieving a fixed connection between the base 2 and the end cap 3. The fixing bottom surface of the base 2 extends to one side to form a fixing edge 24, and a fixing hole III 25 is provided on the fixing edge 24. Thus, by passing a screw through the fixing hole III 25, the base 1 can be fixed in the corresponding position. Of course, screws can also pass through both fixing holes I 21 and fixing holes II 31 simultaneously to achieve a better fixing effect.

[0050] This embodiment also provides an installation method for a rotatable terminal block. The terminal head 7 and the terminal block 6 are connected together by the shaft 8 to form a terminal block 5. The ends of the wires are fixed in the wire grooves I 64 and II 73 at both ends of the terminal block 5 by welding or crimping. The flexible ring 10 is fitted on the outside of the wire barrel I 62 of the terminal block 2 to ensure that the root of the wire barrel I 62 is adapted to the fixing cavity 4, so as to achieve a tighter fit. Then, the terminal block 5 with the wire installed is fixed on the base 2. The limiting shaft head 81 is installed in the grooves on both sides of the inner wall of the opening groove 9. The end cover 3 is placed on the base 2 and the two are fixedly connected by the connector (e.g., screw). When the terminal block 5 needs to be replaced, the screw is removed, the end cover 3 is opened, and a new terminal head 7 and terminal block 6 can be replaced.

[0051] In this design, the shaft 8 (rivet), terminal block 6, and terminal head 7 are made of conductive metal. The surface of the terminal 5 is coated with an anti-oxidation and wear-resistant coating, which gives it a certain degree of anti-oxidation and anti-corrosion effect, as well as wear resistance, thus extending the service life of the component. The base 2 and end cover 3 are made of hard, high-strength plastic material, and the flexible ring 10 is made of soft rubber material.

[0052] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. 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 invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A rotatable terminal block, characterized in that: It includes a base (1) and terminals (5); the terminals (5) are arranged in a row on the base (1) along a first direction. The base (1) includes a base (2) and an end cap (3). The base (2) and the end cap (3) are fastened and fixedly connected to each other. The terminals (5) include a terminal block (6) and a terminal head (7) that can rotate relative to each other. The terminal block (6) is fixed between the base (2) and the end cap (3), and the terminal head (7) can rotate relative to the terminal block (6) along a horizontal or vertical plane. The terminal block (6) includes an integrally formed adapter I (61) and a wire barrel I (62). A rotating groove (65) is formed on the adapter I (61), and a wire groove I (64) is formed on the wire barrel I (62). The terminal head (7) includes an integrally formed adapter II (71) and a junction box II (72), and a wire groove II (73) is formed on the junction box II (72); the adapter II (71) is placed in the rotating groove (65), and the terminal seat (6) and the terminal head (7) are rotatably connected by a shaft (8).

2. The rotatable terminal block according to claim 1, characterized in that: The base (2) has a groove I (41) formed on its fastening surface, and the end cap (3) has a groove II (42) formed on its fastening surface. The groove I (41) and the groove II (42) are joined together to form a fixing cavity (4) for fixing the wiring terminal (5).

3. A rotatable terminal block according to claim 2, characterized in that: The fixed cavity (4) includes a cylindrical cavity (43) and a square cavity (44). The cylindrical cavity (43) and the square cavity (44) are axially connected. The cylindrical cavity (43) is adapted to the external structure of the junction box I (62), and the square cavity (44) is adapted to the external structure of the adapter I (61).

4. A rotatable terminal block according to claim 1, characterized in that: The wire groove I (64) is formed on the tail end face of the adapter I (61), and the wire groove I (64) is a cavity with one end open; the wall of the wiring bucket I (62) is provided with an observation hole I (621) that penetrates the wall. And / or; the wire groove II (73) is opened on the tail end face of the adapter II (71), the wire groove II (73) is a cavity with one end open; the wall of the wiring bucket II (72) is provided with an observation hole II (721) that penetrates the wall.

5. A rotatable terminal block according to claim 2, characterized in that: It also includes a flexible ring (10), which is used to fit onto the terminal block I (62) of the terminal block (6), and the flexible ring (10) is placed inside the fixed cavity (4).

6. A rotatable terminal block according to claim 1, characterized in that: The base (2) is provided with a groove plate I (22) along the first direction, and the end cover (3) is provided with a groove plate II (32) along the first direction. The groove plate I (22) and the groove plate II (32) are arranged in parallel. The base (2) and the end cover (3) are fastened to each other to form an opening groove (9) between the groove plate I (22) and the groove plate II (32). The terminal head (7) can rotate relative to the terminal seat (6) along the horizontal plane in the opening groove (9).

7. A rotatable terminal block according to claim 1, characterized in that: The base (2) is provided with a half groove I (23), and the end cap (3) is provided with a half groove II (33). The half groove I (23) and the half groove II (33) are provided correspondingly. The base (2) and the end cap (3) are fastened to each other so that the corresponding half groove I (23) and the half groove II (33) form an independent opening groove (9). The terminal head (7) can rotate relative to the terminal seat (6) along the vertical plane in the opening groove (9).

8. A rotatable terminal block according to claim 1, characterized in that: The end of the shaft (8) is formed with a limiting shaft head (81), and the inner walls of the opening groove (9) on both sides are formed with grooves for accommodating the limiting shaft head (81).

9. The rotatable terminal block according to any one of claims 1-8, characterized in that: The surface of the terminal block (5) is coated with an anti-oxidation and wear-resistant coating.

10. The rotatable terminal block according to any one of claims 1-8, characterized in that: The head end of the adapter II (71) includes a smooth transition surface (711) and a corner side surface (712) in the circumferential direction; the connection between the smooth transition surface (711) and the corner side surface (712) forms a stop limiting angle (713), and the stop limiting angle (713) abuts against the bottom (68) of the rotating groove (65) to limit the rotation angle of the terminal head (7) relative to the terminal seat (6).

11. The installation method of the rotatable terminal block according to claim 5, characterized in that: The terminal head (7) and terminal base (6) are connected together by the shaft (8) to form a terminal block (5). The ends of the corresponding wires are fixed in the wire groove I (64) and wire groove II (73) at both ends of the terminal block (5). The flexible ring (10) is fitted on the outside of the wire barrel I (62) of the terminal block (5). Then the terminal block (5) with the wire installed is fixed on the base (2). The base (2) is covered with the end cover (3) and the two are fixedly connected.

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