Improved power distribution terminal block

Abstract

The utility model relates to an improved power distribution terminal block, which is provided with a bottom shell, an electrical component, a cover plate and an inner support, a wire inlet hole is formed in the bottom shell, the electrical component comprises a current carrier and an elastic clamping piece which is matched with the current carrier to clamp an external electrical component, and the cover plate and the bottom shell are assembled and matched with each other; wherein the electrical component is located in an assembling space formed after the cover plate and the shell are assembled, and the inner support is arranged in the assembling space so as to reinforce and limit the current carrier. In this way, the limiting effect of the current carrier in the assembly space is enhanced through the inner support, and the current carrier is prevented from having the backward deformation tendency due to the comprehensive extrusion force of the elastic clamping piece and the external electrical component. Therefore, the clamping force of the elastic clamping piece on the external wire can be improved, the risk that the external electrical component is pulled out due to infirm clamping is avoided, and the power distribution efficiency and the stability of the terminal block are further improved.

Description

Technical Field

[0001] The utility model relates to the field of terminal blocks, in particular to an improved power distribution terminal block. Background Art

[0002] A power distribution terminal block refers to a wiring platform formed by an insulating base and electrical components for connecting terminals or wires. The electrical components usually include a current-carrying body and an elastic clamping member that cooperate with each other. For example, the elastic clamping member is a spring piece, and the elastic clamping member clamps and fixes an external wire in electrical contact with the current-carrying body through its own elastic restoring force characteristic.

[0003] However, the existing power distribution terminal blocks have deficiencies: when the elastic clamping member in the terminal block clamps an external wire with a larger size, the current-carrying body will tend to be deformed backward due to the combined extrusion force of the elastic clamping member and the external wire, and the deformation amount of the elastic clamping member will be reduced due to the backward deformation of the current-carrying body, resulting in a reduction in the clamping force of the elastic clamping member on the external wire, leading to the risk that the external wire is not firmly clamped and is easily pulled out, and reducing the power distribution efficiency and stability performance of the terminal block. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an improved power distribution terminal block that can avoid the deformation of the current-carrying body and thus enhance the clamping effect of the elastic clamping member in view of the above-mentioned prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problem is: an improved power distribution terminal block, having:

[0006] A bottom case, formed with an inlet hole;

[0007] An electrical component, including a current-carrying body and an elastic clamping member that cooperates with the current-carrying body to clamp an external electrical component;

[0008] A cover plate, assembled and cooperated with the bottom case; wherein, the electrical component is located in the assembly space formed after the cover plate and the housing are assembled;

[0009] Characterized in that, it further has an inner bracket arranged in the assembly space to enhance the limit of the current-carrying body.

[0010] Improved, in the improved power distribution terminal block, the current-carrying body is located between the inner bracket and the cover plate, and the inner bracket and the cover plate are tightly cooperated with each other.

[0011] Further, in the improved power distribution terminal block, the inner bracket and the cover plate are tightly cooperated through a mutually cooperating buckle structure.

[0012] Improved again, in the improved power distribution terminal block, the inner bracket has:

[0013] The first buckle structure is located above the inner bracket body and corresponds to the upper end of the current-carrying body;

[0014] The second buckle structure is located below the inner bracket body and corresponds to the lower end of the current-carrying body;

[0015] The cover plate has:

[0016] The first buckle mating structure, which is buckled and mated with the first buckle structure of the inner bracket;

[0017] The second buckle mating structure, which is buckled and mated with the second buckle structure of the inner bracket.

[0018] Further, in the improved distribution terminal block, the first buckle structure of the inner bracket and the second buckle structure of the inner bracket are both insertion holes, and the first buckle mating structure and the second buckle mating structure of the cover plate are both insertion posts that are inserted and mated with the corresponding insertion holes.

[0019] Furthermore, in the improved distribution terminal block, the insertion post includes:

[0020] The insertion post body is formed on the first end wall inside the cover plate and extends towards the second end wall opposite to the first end wall; wherein, the first end wall is one of the top wall and the bottom wall, and the second end wall is the other of the top wall and the bottom wall;

[0021] The arc-shaped end is located on the insertion post body and is formed at the end of the extension direction of the insertion post body;

[0022] The insertion hole includes:

[0023] The main insertion hole is formed on the upper side edge of the inner bracket and is buckled and mated with the corresponding insertion post body;

[0024] The secondary insertion hole is formed on the upper side edge of the inner bracket and is communicated with the main insertion hole, and the secondary insertion hole is buckled and mated with the arc-shaped end of the corresponding insertion post.

[0025] Furthermore, in this utility model, the improved distribution terminal block has several electrical components, and each buckle structure of the inner bracket is located between two adjacent current-carrying bodies corresponding to the buckle structure.

[0026] Furthermore, in this utility model, the improved distribution terminal block has a current-carrying body plate, and this current-carrying body plate forms all the current-carrying bodies.

[0027] Furthermore, in the improved distribution terminal block, a first wire inlet hole for inserting a large cross-section wire is formed on the bottom case, a first elastic clamping member corresponding to and cooperating with the first wire inlet hole is arranged inside the bottom case, and a locking structure made of a conductive material for making a locking contact with the current-carrying plate is arranged in the assembly space.

[0028] Furthermore, in the improved distribution terminal block, the locking structure includes:

[0029] a locking portion that makes a locking contact with the current-carrying plate and generates an electrical contact;

[0030] a contact surface located above the maximum stroke of the elastic free end of the first elastic clamping member; wherein, the locking portion is formed on the contact surface.

[0031] Compared with the prior art, the advantages of the present utility model are as follows: in the improved distribution terminal block of the present utility model, by adding an inner bracket in the assembly space formed after the bottom case and the cover plate are assembled, the inner bracket is used to enhance the limiting effect of the current-carrying body in the assembly space, and the risk that the current-carrying body is deformed backward due to the combined extrusion force of the elastic clamping member and the external electrical component is avoided. In this way, the clamping force of the elastic clamping member on the external wire can be improved, the risk that the external electrical component is not firmly clamped and pulled out can be avoided, and the power distribution efficiency and stability performance of the terminal block are further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic structural diagram of the improved distribution terminal block in an embodiment of the present utility model;

[0033] Figure 2 is Figure 1 a main structural exploded diagram of the improved distribution terminal block shown;

[0034] Figure 3 is Figure 2 an enlarged schematic diagram of part B in;

[0035] Figure 4 is Figure 1 a schematic structural diagram of the inner bracket in the improved distribution terminal block shown;

[0036] Figure 5 is Figure 4 an enlarged schematic diagram of part C in;

[0037] Figure 6 is Figure 1 a schematic structural diagram of the housing in the improved distribution terminal block shown;

[0038] Figure 7 is Figure 1 a schematic diagram of the improved distribution terminal block with the bottom case removed shown;

[0039] Figure 8 For Figure 7 the enlarged schematic view of part D in Specific implementation manners

[0040] The present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0041] This embodiment provides an improved distribution terminal block. Specifically, as shown in Figures 1 to 8 , the improved distribution terminal block of this embodiment has a bottom case 1, an electrical component, a cover plate 4 and an inner bracket 5. The bottom case 1 is formed with an inlet hole 10; the electrical component includes a current-carrying body 2 and an elastic clamping member 3 that cooperates with the current-carrying body 2 to clamp an external electrical component. The external electrical component is an external wire; the cover plate 4 is assembled and cooperated with the bottom case 1; the electrical component is located in the assembly space formed after the cover plate 4 and the bottom case 1 are assembled; the inner bracket 5 here is arranged in the assembly space to enhance the limit on the current-carrying body 2.

[0042] In the improved distribution terminal block of this embodiment, by adding an inner bracket in the assembly space formed after the bottom case and the cover plate are assembled, the inner bracket is used to enhance the limiting effect of the current-carrying body in the assembly space, avoiding the tendency of the current-carrying body to be deformed backward due to the combined extrusion force of the elastic clamping member and the external electrical component. In this way, the clamping force of the elastic clamping member on the external wire can be improved, avoiding the risk that the external electrical component is not firmly clamped and pulled out, and thus improving the distribution efficiency and stability performance of the terminal block.

[0043] Specifically, in this embodiment, the current-carrying body 2 is located between the inner bracket 5 and the cover plate 4, and the inner bracket 5 is tightly fastened and cooperated with the cover plate 4. For example, the inner bracket 5 and the cover plate 4 here are tightly fastened and cooperated through a snap structure that cooperates with each other. According to actual needs, the inner bracket 5 here is fixed on the inner side of the bottom case 1.

[0044] As an implementation manner of the snap structure fastening and cooperation between the inner bracket 5 and the cover plate 4, in this embodiment, as shown in Figure 2 and Figure 4 , the inner bracket 5 has a first snap structure 51 and a second snap structure 52. The first snap structure 51 is located above the inner bracket body 50 and corresponds to the upper end of the current-carrying body 2; the second snap structure 52 is located below the inner bracket body 50 and corresponds to the lower end of the current-carrying body 2; as shown in Figure 2 , the cover plate 4 has a first snap cooperation structure 41 and a second snap cooperation structure 42. The first snap cooperation structure 41 is snap-fitted with the first snap structure 51 of the inner bracket 5, and the second snap cooperation structure 42 is snap-fitted with the second snap structure 52 of the inner bracket 5.

[0045] More specifically, as shown in Figure 2 andFigure 5 As shown, both the first snap structure 51 and the second snap structure 52 of the inner bracket 5 are insertion holes. Refer to Figure 2 and Figure 4 As shown, both the first snap - fitting structure 41 and the second snap - fitting structure 42 of the cover plate 4 are insertion posts that are snap - fitted with the corresponding insertion holes.

[0046] For example, the insertion post here includes an insertion - post body 4a and an arc - shaped end 4b. The insertion - post body 4a is formed on the first end wall inside the cover plate 4 and extends towards the second end wall opposite to the first end wall; among them, the first end wall is one of the top wall and the bottom wall, and the second end wall is the other of the top wall and the bottom wall; the arc - shaped end 4b is located on the insertion - post body 4a and is formed at the end of the extension direction of the insertion - post body 4a; the insertion hole includes a main insertion hole 5a and a secondary insertion hole 5b. The main insertion hole 5a is formed on the upper side edge of the inner bracket 5 and is snap - fitted with the corresponding insertion - post body 4a; the secondary insertion hole 5b is formed on the upper side edge of the inner bracket 5 and is communicated with the main insertion hole 5a, and the secondary insertion hole 5b is snap - fitted with the arc - shaped end 4b of the corresponding insertion post.

[0047] In order to enhance the limiting effect of the inner bracket on the current - carrying body, the improved distribution terminal block in this embodiment has a number of electrical components, and each snap structure of the inner bracket 5 is located between two adjacent current - carrying bodies 2 corresponding to the snap structure.

[0048] Preferably, in this embodiment, the improved distribution terminal block has a current - carrying body plate 2A, and the current - carrying body plate 2A forms all the current - carrying bodies 2.

[0049] In order to prevent a large - cross - section wire from being inserted, which may have an adverse effect on the fixation of the current - carrying body plate and further reduce the clamping effect of the elastic clamping member on the large - cross - section wire. As an improvement, in the improved distribution terminal block of this embodiment, refer to Figure 1 、 Figure 2 、 Figure 7 and Figure 8 As shown, a first wire - inlet hole 11 for inserting a large - cross - section wire and a button member 12 are formed on the bottom case 1. A first elastic clamping member 3' that corresponds to and cooperates with the first wire - inlet hole 11 is arranged inside the bottom case 1. The button member 12 is configured to press the first elastic clamping member 3' to generate elastic deformation after being pressed by a pressing force to form a clamping gap for the external wire to enter and exit. A locking structure 6 made of a conductive material that makes a locking contact with the current - carrying body plate 2A is arranged in the above - mentioned assembly space. Specifically, the locking structure 6 here includes a locking portion 61 and a contact surface 62. The locking portion 61 makes a locking contact with the current - carrying body plate 2A and generates an electrical contact; the contact surface 62 is located above the maximum stroke of the elastic free end 3a' of the first elastic clamping member 3'; among them, the locking portion 61 is formed on the contact surface 62.

[0050] When using the distribution terminal platform of this embodiment, after inserting a large cross-section wire into the inside of the distribution terminal platform through the first inlet hole of the bottom case, the end of the large cross-section wire will touch the first elastic clamping member, so that a gap for clamping the wire is generated between the contact surface of the first elastic clamping member and the locking structure. Then, the large cross-section wire is clamped by the clamping of the first elastic clamping member, and the electrical contact between the large cross-section wire and the current-carrying body is completed through the conductive locking structure; during the elastic deformation process of the first elastic clamping member, even if the elastic force of the first elastic clamping member and the stress of the large cross-section wire act on the current-carrying body plate together, due to the locking effect of the locking structure on the current-carrying body plate at this place, the current-carrying body plate will not produce deformation that reduces the clamping force applied by the first elastic clamping member to the outside, thus ensuring the clamping effect of the first elastic clamping member on the large cross-section wire and avoiding the risk that the large cross-section wire is easily pulled out from the first inlet hole of the bottom case.

[0051] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various changes and modifications can be made to the present invention for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Improved distribution terminal block, having: A bottom case (1) formed with an inlet hole; An electrical component including a current-carrying body (2) and an elastic clamping member (3) that cooperates with the current-carrying body (2) to clamp an external electrical component; Cover plate (4), which is assembled and cooperated with the bottom case (1); among them, The electrical component is located in an assembly space formed after the cover plate (4) and the bottom case (1) are assembled; It is characterized in that it also has an inner bracket (5) provided in the assembly space to enhance the limitation of the current-carrying body (2).

2. The improved power distribution terminal block according to claim 1, wherein, The current-carrying body (2) is located between the inner bracket (5) and the cover plate (4), and the inner bracket (5) and the cover plate (4) are tightly fitted with each other.

3. The improved power distribution terminal block according to claim 2, wherein The inner bracket (5) and the cover plate (4) are tightly fitted through a snap structure that cooperates with each other.

4. The improved power distribution terminal block according to claim 3, wherein, The inner bracket (5) has: A first snap structure (51) located above the inner bracket body (50) and corresponding to the upper end of the current-carrying body (2); A second snap structure (52) located below the inner bracket body (50) and corresponding to the lower end of the current-carrying body (2); The cover plate (4) has: A first snap-fit structure (41) that snap-fits with the first snap structure (51) of the inner bracket (5); A second snap-fit structure (42) that snap-fits with the second snap structure (52) of the inner bracket (5).

5. The improved power distribution terminal block according to claim 4, characterized in that, The first snap structure (51) of the inner bracket (5) and the second snap structure (52) of the inner bracket (5) are both insertion holes, and the first snap-fit structure (41) and the second snap-fit structure (42) of the cover plate (4) are both insertion posts that are inserted into the corresponding insertion holes.

6. The improved power distribution terminal block according to claim 5, wherein, The insertion post includes: An insertion post body (4a) formed on the first end wall inside the cover plate (4) and extending towards the second end wall opposite to the first end wall; wherein, the first end wall is one of the top wall and the bottom wall, and the second end wall is the other of the top wall and the bottom wall; An arc-shaped end portion (4b) located on the insertion post body (4a) and formed at the end of the extension direction of the insertion post body (4a); The insertion hole includes: A main insertion hole (5a) formed on the upper side edge of the inner bracket (5) and snap-fitted with the corresponding insertion post body (4a); A secondary insertion hole (5b) formed on the upper side edge of the inner bracket (5) and communicating with the main insertion hole (5a), and the secondary insertion hole (5b) is snap-fitted with the arc-shaped end portion (4b) of the corresponding insertion post.

7. The improved power distribution terminal block according to any one of claims 4 to 6, characterized in that, There are several electrical components, and each snap structure of the inner bracket (5) is located between two adjacent current-carrying bodies (2) corresponding to the snap structure.

8. The improved power distribution terminal block according to claim 7, characterized in that, There is a current-carrying body plate (2A) that forms all the current-carrying bodies (2).

9. The improved power distribution terminal block according to claim 8, characterized in that, A first inlet hole (11) for inserting a large cross-section wire is formed on the bottom case (1), a first elastic clamping member (3') corresponding to the first inlet hole (11) is provided inside the bottom case (1), and a conductive locking structure (6) that makes a locking contact with the current-carrying body plate (2A) is provided in the assembly space.

10. The improved power distribution terminal block according to claim 9, characterized in that, The locking structure (6) includes: A locking portion (61) that makes a locking contact with the current-carrying body plate (2A) and generates an electrical contact; The abutting surface (62) is located above the maximum stroke of the elastic free end of the first elastic clamping member (3'); wherein, the locking portion (61) is formed on the abutting surface (62).

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