Shunt terminal block and assembly method thereof

Abstract

The present invention relates to a shunt terminal row, including a base, an upper cover, and an upper wiring terminal group. The base is provided with a spacer in the length direction. The base is divided into a plurality of upper wiring slots by the spacer. The base is provided with more than one mounting recess. An mounting space is provided between the mounting recess and the spacer. The upper wiring terminal group includes a long shunt terminal piece and more than one wiring terminal piece. The long shunt terminal piece includes a long connecting portion and a shunt wiring portion. The wiring terminal piece is arranged in the mounting recess. The wiring terminal piece includes a first contact portion, a second contact portion, and a connecting portion. One end of the connecting portion is connected to the first contact portion, and the other end is bent downward to be connected to the second contact portion. Limiting protrusions are provided on both sides of the upper wiring slot, and a plug-in space is provided below the limiting protrusion. The shunt wiring portion is provided with a connecting hole, and a wiring screw is fixed in the connecting hole. By adopting the above technical solution, the structure is simple, easy to assemble, and the circuit is clear and easy to identify.

Description

Technical Field

[0001] The present invention relates to the technical field of terminal blocks, and more particularly to a shunt terminal block and an assembling method thereof. Background Art

[0002] Terminal blocks are an electrical component used to connect circuits in electrical equipment. The number of terminal blocks in each row is different, and its model can be determined according to the needs of engineering technical parameters. Terminal blocks are a type of connector, and are used to facilitate the connection of wires. They are widely used in the electrical field. In electrical control systems, terminal blocks are one of the indispensable components.

[0003] In the prior art, a shunt is used for current shunting, and its main function is to divide one current into multiple currents. At present, a commonly used shunting method is to use a hole-type connector, crimp a wire for current inflow, and then superimpose and crimp multiple wires for current outflow, thereby achieving one-to-many shunting. However, this shunting method is relatively cumbersome to operate, and the line distribution is messy, more parts are required, more connection structures, more complex structure, and low assembly efficiency. Summary of the invention

[0004] In summary, in order to overcome the deficiencies of the prior art, the present invention provides a shunt terminal block.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shunt terminal block, comprising a base, an upper cover and an upper wiring terminal group matched with the base, a spacer is provided in the length direction of the base, the base is divided into a plurality of upper wiring grooves by the spacer, one or more mounting recesses are provided on the other side of the base relative to the spacer, a mounting space is provided between the mounting recess and the spacer, the upper wiring terminal group comprises a long shunt terminal piece and one or more wiring terminal pieces, the long shunt terminal piece comprises a long connecting portion arranged in the installing space and shunt wiring portions respectively arranged in the upper wiring grooves, the length of the long connecting portion The wiring terminal pieces are respectively arranged in corresponding mounting recesses, the wiring terminal pieces include a first contact portion connected to the long connection portion, a second contact portion extending outward from the mounting recess, and a connection portion connecting the first contact portion and the second contact portion, one end of the connection portion is connected to the first contact portion, and the other end is bent downward to be connected to the second contact portion, limiting protrusions are arranged on both sides of the upper wiring groove to prevent the shunt wiring portion from detaching, and an insertion space for inserting the shunt wiring portion is arranged below the limiting protrusion, and the shunt wiring portion is provided with a connecting hole, and a wiring screw is fixed in the connecting hole.

[0006] By adopting the above technical scheme, compared with the existing current shunting method, the technical scheme of the present invention connects the current introduction wire with the terminal piece, and the current extraction wire is connected through the shunt wiring part in the upper wiring slot. The structure is simple, easy to assemble, and the circuit is clear (each upper wiring slot is provided with an identification number) for easy identification. At the same time, long shunt terminal pieces of different lengths and a corresponding number of terminal pieces are selected during assembly. The upper wiring slot and the number of entrances can be independently selected according to customer needs to achieve different functional specifications (such as adding fuses and other functions). It has wide adaptability and is conducive to industrial modular production.

[0007] The present invention is further provided that: a mounting boss for receiving the shunt wiring part is provided in the upper wiring groove, the mounting boss is provided with a mounting hole adapted to the connecting hole, the plug-in space is provided between the limiting protrusion and the mounting boss, a plurality of receiving protrusions for receiving the long connecting part are provided at intervals on the mounting space, and the receiving protrusions are provided at the same height as the mounting boss.

[0008] By adopting the above technical scheme, when the contact portion of the long shunt terminal piece is inserted into the upper wiring groove along the plug-in space, a mounting boss and a receiving boss are provided, so that the long shunt terminal piece is transformed from contact with the entire base surface to multi-line contact, thereby reducing the contact area, reducing friction, and making installation more convenient and quick. At the same time, it plays a limiting role, thereby improving the stability and firmness of the long shunt terminal piece, and improving the conductive stability of the long shunt terminal piece.

[0009] The present invention is further provided with: open grooves adapted to the limiting protrusions are arranged on both sides of the shunt wiring part, the spacing between the open grooves and the long connecting part is greater than or equal to the width of the limiting protrusions, two limiting protrusions are arranged on one side of the upper wiring groove, and the spacing between the other end of the shunt wiring part relative to the long connecting part and the open groove is smaller than the spacing between the two limiting protrusions on the same side.

[0010] By adopting the above technical scheme, the original insertion into the plug-in space is transformed into aligning the opening groove with the limiting protrusion from above the upper wiring groove, and then pressing down to the plug-in space and pushing the long shunt terminal piece forward until the long connecting part abuts against the outer wall of the partition block. At this time, both ends on both sides of the shunt wiring part are arranged below the limiting protrusion and the opening groove and the limiting protrusion avoid misalignment. The limiting protrusion plays a role in limiting the installation of the shunt wiring part. At the same time, the limiting protrusion prevents the shunt wiring part from bending and warping, and has high stability. At the same time, the change in the installation method, compared with direct insertion, due to the longer base and the long connecting part, the insertion of the two sides is uneven and easy to tilt and get stuck. The technical scheme of the present invention greatly shortens the plug-in stroke and reduces friction. At the same time, aligning and pressing down before translating also greatly improves the stability and accuracy of the installation, which is conducive to automated assembly.

[0011] The present invention further provides that: the connecting portion includes a first connecting section connected to the first contact portion and a second connecting section connected to the second contact portion, the first connecting section and the second connecting section are arranged in an inverted L shape, and abutment portions protruding toward the top of the receiving protrusion are provided on both sides of the first connecting section.

[0012] By adopting the above technical solution, the connecting portion is bent so as to be in close contact with the mounting recess, thereby enhancing the connection stability of the second contact portion and preventing it from swinging.

[0013] The present invention is further provided that: the mounting recess is arranged relative to the other end opening of the long shunt terminal piece, and limit blocks for limiting the second contact part are arranged on both sides of the mounting recess, and a limiting part is arranged at one end of the second contact part corresponding to the connecting part, the width of the limiting part is smaller than the width of the mounting recess and larger than the spacing between the limit blocks on both sides, the width of the second connecting section is smaller than the spacing between the limit blocks on both sides, and an accommodating recess for accommodating the second connecting section is arranged on the inner wall of the other end of the mounting recess relative to the opening.

[0014] By adopting the above technical scheme, the limit block limits the terminal piece, the limit protrusion limits the long shunt terminal piece, the two ends limit the height direction of the upper terminal group respectively, and the upper wiring groove limits the length direction of the upper terminal group. Multiple limits improve the stability and firmness of the connection of the upper terminal group and improve the stability of conductivity; the installation recess is set to facilitate the assembly and limitation of the terminal piece and improve the stability; the installation recess is set to further limit the second connection section, and the multiple limits further improve the stability of the installation of the terminal piece.

[0015] The present invention is further provided with: blocks for installing the upper cover are arranged on both sides of the installation space corresponding to the base, one end of the upper cover is opened corresponding to the spacer, and clamping parts adapted to the clamping blocks are arranged on both sides of the inner wall of the upper cover. The upper cover is inserted from the opening direction, and is clamped with the base through the cooperation of the clamping parts and the clamping blocks.

[0016] By adopting the above technical solution, the clamping part and the clamping block are engaged with the base, which makes disassembly and assembly simple and convenient, and the assembly stability is high. The upper cover protects the connection between the long shunt terminal piece and the wiring terminal piece, further improving the stability of the connection of the upper wiring terminal group.

[0017] The present invention further provides that: the connection between the long connecting portion and the shunt wiring portion is rounded.

[0018] By adopting the above technical solution, the rounded corners are set at the connection to enhance the strength of the long shunt terminal piece, making it less likely to break.

[0019] The present invention also provides an assembly method for a shunt terminal row, comprising the following steps: S1: fixedly connecting one or more terminal pieces to a long shunt terminal piece; S2: aligning the shunt wiring part with the upper wiring slot, and inserting the upper terminal group downward by aligning the opening slots on both sides with the limiting protrusions on both sides; S3: pushing the long connection part toward the plug-in space along the receiving protrusion until the long connection part abuts against the outer wall of the partition block, at which time the shunt wiring part is clamped between the bottom of the limiting protrusion and the top of the mounting boss, and the opening slot is staggered with the limiting protrusion, and the terminal piece moves with the long connection part into the mounting recess; S4: inserting the upper cover from the opening direction, and clamping it with the base through the cooperation of the clamping part and the clamping block until the upper cover blocks the installation space; S5: aligning the connecting hole with the mounting hole, the wiring screw passes through the gasket and is screwed into the mounting hole, and the wire is pressed tightly between the gasket and the mounting boss.

[0020] By adopting the above technical solution, the assembly method is simple, convenient, precise, efficient and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional embodiment of the present invention Figure 1 .

[0022] Figure 2 It is a three-dimensional diagram of the local structure of an embodiment of the present invention.

[0023] Figure 3 for Figure 2 Enlarged view of part A.

[0024] Figure 4 It is a partial exploded view of an embodiment of the present invention.

[0025] Figure 5 for Figure 4 Enlarged view of part B.

[0026] Figure 6 The three-dimensional embodiment of the present invention Figure 2 .

[0027] Figure 7 It is a three-dimensional diagram of the base and the lower cover in an unassembled state according to an embodiment of the present invention.

[0028] Figure 8 It is a three-dimensional diagram of the base and the lower terminal assembly according to an embodiment of the present invention.

[0029] Fig. 9 for Figure 8 Enlarged view of part C.

[0030] Fig.10 It is a three-dimensional diagram of a base according to an embodiment of the present invention.

[0031] Meaning of the numbers in the figure: 1. base, 11. spacer, 12. upper wiring groove, 121. limiting convex part, 122. mounting boss, 1221. mounting hole, 13. plug-in space, 14. mounting recess, 141. limiting block, 142. accommodating recess, 15. mounting space, 151. receiving convex part, 16. clamping block, 17. mounting groove, 171. notch, 172. clamping groove, 173. sliding groove, 174. limiting clamping part, 18. mounting part, 181. wiring cavity, 182. movable cavity, 183. first limiting part, 1831. inclined part, 19. Lower wiring slot, 191. Second limiting portion, 2. Upper cover, 21. Clamping portion, 3. Upper wiring terminal group, 31. Long shunt terminal piece, 311. Long connecting portion, 312. Shunt wiring portion, 3121. Connecting hole, 3122. Opening slot, 32. Terminal piece, 321. First contact portion, 322. Second contact portion, 3221. Limiting portion, 323. Connecting portion, 3231. First connecting section, 3232. Second connecting section, 3233. Abutting portion, 4. Wiring screws, 5. Lower cover, 51. Elastic clamping portion, 6. Lower wiring terminal group. DETAILED DESCRIPTION

[0032] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0034] Reference Figure 1-10A shunt terminal block comprises a base 1 and an upper cover 2 matched with the base 1, and an upper wiring terminal group, wherein a spacer 11 is provided in the length direction of the base 1, and the base 1 is divided into a plurality of upper wiring grooves 12 by the spacer 11, and the base 1 is provided with one or more mounting recesses 14 on the other side of the spacer 11, and an mounting space 15 is provided between the mounting recess 14 and the spacer 11, and the upper wiring terminal group comprises a long shunt terminal piece 31 and one or more wiring terminal pieces 32, and the long shunt terminal piece 31 comprises a long connecting portion 311 arranged in the installing space 15 and shunt wiring portions 312 respectively arranged in the upper wiring grooves 12, and the length of the long connecting portion 311 is greater than the maximum spacing between the shunt wiring portions 312, and the wiring The terminal pieces 32 are respectively arranged in the corresponding mounting recesses 14, and the terminal pieces 32 include a first contact portion 321 for connecting to the long connecting portion 311, a second contact portion 322 extending outward from the mounting recess 14, and a connecting portion 323 connecting the first contact portion 321 and the second contact portion 322, one end of the connecting portion 323 is connected to the first contact portion 321, and the other end is bent downward to be connected to the second contact portion 322, and limiting protrusions 121 are provided on both sides of the upper wiring groove 12 to prevent the shunt wiring portion 312 from detaching, and an insertion space 13 for inserting the shunt wiring portion 312 is provided below the limiting protrusion 121, and the shunt wiring portion 312 is provided with a connecting hole 3121, and a wiring screw 4 is fixed in the connecting hole 3121.

[0035] In the technical solution of the present invention, the connection method between the long shunt terminal piece 31 and the wiring terminal piece 32 can be riveting, welding, clamping, snapping, threaded connection, etc., preferably riveting. Riveting holes are respectively provided on the long connecting part 311 and the first contact part 321, and the two are riveted together by rivets, which is convenient to assemble and has high stability.

[0036] This embodiment is further configured as follows: a mounting boss 122 for receiving the shunt wiring portion 312 is provided in the upper wiring groove 12, the mounting boss 122 is provided with a mounting hole 1221 adapted to the connecting hole 3121, the plug-in space 13 is provided between the limiting protrusion 121 and the mounting boss 122, a plurality of receiving protrusions 151 for receiving the long connecting portion 311 are provided at intervals on the installation space 15, and the receiving protrusions 151 are provided at the same height as the mounting boss 122.

[0037] This embodiment is further configured as follows: open grooves 3122 adapted to the limiting protrusions 121 are provided on both sides of the shunt wiring portion 312, the spacing between the open groove 3122 and the long connection portion 311 is greater than or equal to the width of the limiting protrusion 121, two limiting protrusions 121 are provided on one side of the upper wiring groove 12, and the spacing between the other end of the shunt wiring portion 312 relative to the long connection portion 311 and the open groove 3122 is smaller than the spacing between the two limiting protrusions 121 on the same side.

[0038] This embodiment is further configured as follows: the mounting recess 14 is opened relative to the other end of the long shunt terminal piece 31, and limiting blocks 141 for limiting the second contact portion 322 are arranged on both sides of the mounting recess 14; a limiting portion 3221 is arranged at one end of the second contact portion 322 corresponding to the connecting portion 323, the width of the limiting portion 3221 is smaller than the width of the mounting recess 14 and larger than the spacing between the limiting blocks 141 on both sides, the width of the second connecting section 3232 is smaller than the spacing between the limiting blocks 141 on both sides, and an accommodating recess 142 for accommodating the second connecting section 3232 is arranged on the inner wall of the other end of the mounting recess 14 relative to the opening.

[0039] This embodiment is further configured as follows: blocks 16 for installing the upper cover 2 are provided on both sides of the base 1 corresponding to the installation space 15; an opening is provided at one end of the upper cover 2 corresponding to the spacer block 11; clamping portions 21 adapted to the clamping blocks 16 are provided on both sides of the inner wall of the upper cover 2; the upper cover 2 is inserted from the opening direction, and is clamped with the base 1 through the cooperation of the clamping portions 21 and the clamping blocks 16.

[0040] This embodiment further configures: the connection between the long connection portion 311 and the shunt wiring portion 312 is configured with a rounded corner.

[0041] The present embodiment is further provided with: a lower cover 5 and a lower terminal group 6 adapted to the base 1; a mounting groove 17 is provided on one side of the base 1 corresponding to the lower cover 5; a mounting portion 18 is provided in the mounting groove 17; a plurality of wiring cavities 181 are provided on the mounting portion 18; an active cavity 182 is formed between the mounting portion 18 and the inner wall of the mounting groove 17; the lower terminal group includes a long shunt terminal piece 31 and a wiring terminal piece 32; a notch 171 for the wiring terminal piece 32 to extend out is provided on one side of the mounting groove 17 corresponding to the active cavity 182; the long shunt terminal piece 31 includes a long connecting portion 311 provided in the active cavity 182 and shunt connecting portions 311 respectively provided in the wiring cavity 181; The wiring part 312, the first limiting parts 183 for preventing the shunt wiring part 312 from being detached are arranged on both sides of the wiring cavity 181, and an insertion space 13 for inserting the shunt wiring part 312 is arranged between the first limiting part 183 and the bottom wall of the active cavity 182, and the installation groove 17 is arranged with upper and lower openings corresponding to the position of the wiring cavity 181, and the first limiting part 183 is provided with an inclined part 1831 on one side corresponding to the active cavity 182, and the shunt wiring part 312 is inserted into the wiring cavity 181 through the insertion space 13 so that it extends out of the installation groove 17, and the shunt wiring part 312 is provided with a connecting hole 3121, and a connecting screw 4 is fixed in the connecting hole 3121.

[0042] This embodiment further configures: the connecting portion 323 includes a first connecting segment 3231 connected to the first contact portion 321 and a second connecting segment 3232 connected to the second contact portion 322, the first connecting segment 3231 and the second connecting segment 3232 are configured in an inverted L shape, and the first connecting segment 3231 has protruding abutting portions 3233 on both sides.

[0043] This embodiment further configures: the first connecting section 3231 and the first contact portion 321 are connected in an L-shape.

[0044] In the technical solution of the present invention, compared with the aligned arrangement of the shunt wiring portion 312 and the second contact portion 322, the first connecting section 3231 and the first contact portion 321 are connected in an L-shape, and the first connecting section 3231 is arranged on one side of the first contact portion 321. The terminal piece 32 of the upper terminal group and the terminal piece 32 of the lower terminal group are staggered to avoid each other, so that the distance between the second contact portions 322 of the two is widened to avoid short circuit caused by the neutral line and the live line being too close; when riveting is adopted between the long shunt terminal piece 31 and the terminal piece 32, the abutment portion 3233 can prevent the two from rotating relative to each other, thereby further enhancing the stability of the connection.

[0045] This embodiment is further configured as follows: a plurality of lower wiring grooves 19 are provided at positions corresponding to the wiring chamber 181 outside the base 1, and the lower wiring grooves 19 are connected to the corresponding wiring chamber 181 in upper and lower directions. The shunt wiring portion 312 is inserted into the wiring chamber 181 through the plug-in space 13, and one side of the shunt wiring portion 312 is abutted against the first limiting portion 183, and the other side is arranged in the lower wiring groove 19. Second limiting portions 191 for limiting the shunt wiring portion 312 are provided on both sides of the lower wiring groove 19, and the second limiting portion 191 is arranged on the other side of the lower wiring groove 19 relative to the inclined portion 1831, and the shunt wiring portion 312 is inserted between the second limiting portion 191 and the first limiting portion 183.

[0046] This embodiment is further configured as follows: a card slot 172 is provided on the other side of the mounting groove 17 relative to the mounting portion 18, an elastic card portion 5121 is provided on the side of the upper cover 2 corresponding to the card slot 172, a sliding groove 173 adapted to the elastic card portion 5121 is provided at the position of the mounting groove 17 corresponding to the card slot 172, and a limiting card portion 174 is provided between the sliding groove 173 and the card slot 172 for preventing the elastic card portion 5121 from detaching.

[0047] This embodiment is further configured as follows: a lower wiring groove 19 is arranged in the spacer block 11, the upper wiring grooves 12 are arranged at the same height, and the lower wiring grooves 19 are arranged at the same height. The lower wiring grooves 19 and the upper wiring grooves 12 are staggered along the length direction of the base 1, and there is a height difference between the upper wiring grooves 12 and the lower wiring grooves 19.

[0048] A method for assembling a shunt terminal row comprises the following steps: S1: assembling an upper terminal group (fixingly connecting one or more terminal pieces 32 to a long shunt terminal piece 31) and a lower terminal group (fixingly connecting the terminal piece 32 to the long shunt terminal piece 31); S2: aligning the shunt wiring portion 312 with the upper wiring slot 12, and inserting the upper terminal group downward by aligning the opening slots 3122 on both sides with the limiting protrusions 121 on both sides; S3: pushing the long connection portion 311 toward the insertion space 13 along the receiving protrusion 151 until the long connection portion 311 abuts against the outer wall of the spacer 11, at which time the shunt wiring portion 312 is clamped between the bottom of the limiting protrusion 121 and the top of the mounting boss 122, and the opening slot 3122 is staggered from the limiting protrusion 121, and the terminal piece 32 moves with the long connection portion 311 into the mounting groove 17; S4: inserting the upper cover 2 from the opening direction, The block 16 is matched to make it snap-fit ​​with the base 1 until the upper cover 2 covers the installation space 15; S5: align the shunt wiring part 312 with the wiring cavity 181 along the inclined direction of the inclined part 1831, and then tilt the lower terminal group into it, and then press it down until it is parallel to the installation groove 17; S6: push the long connection part 311 toward the plug-in space 13 along the bottom wall of the active cavity 182 until the long connection part 311 abuts against the outer wall of the installation part 18. At this time, the shunt connection The wire portion 312 is clamped between the second limiting portion 191 and the first limiting portion 183, and the shunt wiring portion 312 is set in the lower wiring groove 19; S7: Insert the lower cover 5 into the installation groove 17, and the elastic clamping portion 5121 slides along the sliding groove 173, so that the elastic clamping portion 5121 passes over the limiting clamping portion 174 and is clamped with the clamping groove 172 to complete the installation of the lower cover 5; S8: Pass multiple wiring screws 4 through the gaskets and screw them into the upper wiring groove 12 and the lower wiring groove 19 respectively.

[0049] This embodiment further provides that: the order of steps S2-S4 and steps S5-S7 can be reversed.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications of the above assumptions should also be regarded as the scope of protection of the present invention.

Claims

1. A shunt terminal block, characterized in that: It includes a base and an upper cover and an upper terminal group matched with the base, wherein a spacer is provided in the length direction of the base, and the base is divided into a plurality of upper wiring grooves by the spacer, and one or more mounting recesses are provided on the other side of the base relative to the spacer, and a mounting space is provided between the mounting recess and the spacer, and the upper wiring terminal group includes a long shunt terminal piece and one or more wiring terminal pieces, the long shunt terminal piece includes a long connecting portion arranged in the mounting space and shunt wiring portions respectively arranged in the upper wiring grooves, the length of the long connecting portion is greater than the maximum spacing between the shunt wiring portions, the wiring terminal piece is arranged in the mounting recess, and the wiring terminal piece includes a first contact portion for connecting to the long connecting portion, a first contact portion extending outward from the mounting recess, and a second contact portion extending outward from the mounting recess. Two contact parts and a connecting part connecting the first contact part and the second contact part, one end of the connecting part is connected to the first contact part, and the other end is bent downward to be connected to the second contact part, and limiting protrusions are arranged on both sides of the upper wiring groove to prevent the shunt wiring part from detaching, and a plug-in space for inserting the shunt wiring part is arranged below the limiting protrusions, and the shunt wiring part is provided with a connecting hole, and a wiring screw is fixed in the connecting hole; a mounting boss for receiving the shunt wiring part is arranged in the upper wiring groove, and the mounting boss is provided with a mounting hole adapted to the connecting hole, and the plug-in space is arranged between the limiting protrusion and the mounting protrusion, and a plurality of receiving protrusions for receiving the long connecting part are arranged at intervals on the mounting space, and the receiving protrusion is arranged at the same height as the mounting protrusion.

2. A shunt terminal block according to claim 1, characterized in that: Open grooves matching the limiting protrusions are arranged on both sides of the shunt wiring part, the spacing between the open groove and the long connecting part is greater than or equal to the width of the limiting protrusion, two limiting protrusions are arranged on one side of the upper wiring groove, and the spacing between the other end of the shunt wiring part relative to the long connecting part and the open groove is smaller than the spacing between the two limiting protrusions on the same side.

3. A shunt terminal block according to claim 1, characterized in that: The connecting portion includes a first connecting section connected to the first contact portion and a second connecting section connected to the second contact portion. The first connecting section and the second connecting section are arranged in an inverted L shape. Both sides of the first connecting section are provided with abutment portions protruding toward the upper side of the receiving convex portion.

4. A shunt terminal block according to claim 3, characterized in that: The mounting recess is arranged relative to the other end opening of the long shunt terminal piece, and limit blocks for limiting the second contact part are arranged on both sides of the mounting recess. A limiting part is arranged at one end of the connecting part corresponding to the second contact part, and the width of the limiting part is smaller than the width of the mounting recess and larger than the spacing between the limit blocks on both sides. The width of the second connecting section is smaller than the spacing between the limit blocks on both sides, and an accommodating recess for accommodating the second connecting section is arranged on the inner wall of the other end of the mounting recess relative to the opening.

5. The shunt terminal block according to claim 1, characterized in that: Blocks for installing the upper cover are arranged on both sides of the installation space corresponding to the base, one end of the upper cover is opened corresponding to the spacer, and clamping parts adapted to the clamping blocks are arranged on both sides of the inner wall of the upper cover. The upper cover is inserted from the opening direction, and is clamped with the base through the cooperation between the clamping parts and the clamping blocks.

6. The shunt terminal block according to claim 1, characterized in that: The connection between the long connection part and the shunt connection part is rounded.

7. A method for assembling a shunt terminal block, characterized in that: The following steps are involved: S1: Fix one or more terminal pieces to the long shunt terminal piece; S2: Align the shunt wiring part with the upper wiring slot, and insert the upper terminal group downward by aligning the opening slots on both sides with the limiting protrusions on both sides; S3: Push the long connection part toward the plug-in space along the receiving protrusion until the long connection part abuts against the outer wall of the partition block. At this time, the shunt wiring part is clamped between the bottom of the limiting protrusion and the top of the mounting boss, and the opening slot is staggered with the limiting protrusion, and the terminal piece moves with the long connection part into the mounting recess; S4: Insert the upper cover from the opening direction, and clamp it with the base through the cooperation of the clamping part and the clamping block until the upper cover covers the installation space; S5: Align the connection hole with the mounting hole, and screw the wiring screw through the gasket into the mounting hole.

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