A terminal block and its manufacturing process

Abstract

The present invention relates to the technical field of electrical connectors, and provides a terminal block and a process method thereof. The terminal block includes an insulating seat body, a terminal module, a wire pressing assembly and a fastening cover body. The insulating seat body has a main body part and a tail part. The main body part has a counterbore and a mounting groove; the tail part has a first terminal hole; the terminal module includes a terminal group and a rear plug. The rear plug includes a tail plate perpendicular to the back of the vertical plug plate. The terminal group includes several terminals. Each terminal includes an elastic part and a wiring part connected to the front and rear ends of the fixing part. The fixing part interferes with the first terminal hole, so that the elastic part is suspended in the mounting groove, and the wiring part passes through the plug plate and is exposed on the upper surface of the tail plate; the wire pressing assembly includes a screw and a terminal sleeve. The terminal sleeve includes a rectangular hole and a screw hole. The terminal sleeve is installed in the mounting groove so that the screw hole is aligned with the counterbore, and the screw is screwed into the screw hole, so that the terminal sleeve is movably arranged in the mounting groove. With the foregoing structure, the technical problems of simplifying the structure and improving the manufacturing process are solved, and the effects of improving production capacity and product yield are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and particularly provides a terminal block and a process method thereof. Background Art

[0002] The existing terminal block (or "terminal") is used for connecting electrical cables to each other or for connecting an electrical cable to an electronic device. Generally, the commonly used terminal is a combined type of front and rear rubber cores. Among them: the front rubber core is provided with a crimping terminal, which can be connected to the wire end; the rear rubber core is provided with a plug-in terminal, and the plug-in terminal is connected to the (PCB) board end. The front rubber core is inserted into the rear rubber core to form an integral body. There are the following defects in this way:

[0003] Firstly, the process is complex. For example, when using the front and rear rubber cores, two sets of molds need to be opened, which will not only increase the mold opening cost, but also increase the material and manual assembly costs, and is not conducive to reducing the product cost;

[0004] Secondly, the method of directly fixing the cable head with screws will cause the cable head to loosen under the direct fixation of the screws. The poor contact caused by the looseness poses a great safety hazard.

[0005] How to reduce the product cost and improve the stability and reliability of the terminal block for cable fixation has become an urgent problem for those skilled in the art to solve. Summary of the Invention

[0006] To solve the above technical problems, the main object of the present invention is to provide a terminal block.

[0007] To achieve the above object, the technical solution applied in the present invention is: to provide a terminal block, which includes an insulating seat body, a terminal module, a wire pressing component and a fastening cover body, wherein: the insulating seat body has a main body portion and a tail extending backward, and several counterbores are arranged downward on the top surface of the main body portion. Several installation grooves are formed backward on the front surface of the main body portion and communicate with several counterbores respectively; the tail has several first terminal holes penetrating through several installation grooves. A relief hole is formed above each first terminal hole in a form of communicating the first terminal hole and the installation groove. A groove symmetrically arranged up and down is formed between the tail and the main body portion; the terminal module includes a terminal group and a rear plug formed by injection molding and curing. The rear plug includes a plug plate and a tail plate perpendicular to the back surface of the plug plate. The terminal group includes several terminals. Each terminal includes an elastic portion connected to the front end of the fixing portion and a wiring portion connected to the rear end of the fixing portion. The fixing portion of each terminal is interference-fixed with the corresponding first terminal hole, so that the elastic portion is suspended in the installation groove, and the wiring portions of each terminal respectively pass through the plug plate and are exposed on the upper surface of the tail plate; the wire pressing component includes a screw and a terminal sleeve. The terminal sleeve includes a rectangular hole penetrating through the front and rear and a screw hole penetrating downward from the upper surface and communicating with the rectangular hole. The terminal sleeve is sleeved in the installation groove, so that the elastic portion is located in the rectangular hole and the screw hole is aligned with the counterbore. The screw is screwed through the counterbore and the screw hole, so that the terminal sleeve is movably arranged in the installation groove.

[0008] In this embodiment, it is preferred that: the main body portion further includes upper and lower clamping holes and upper and lower stepped portions, wherein: the upper clamping hole is formed between the counterbore and the front edge of the top surface. The upper stepped portion is formed on the front surface of the main body portion in a form of flush with the top surface. The lower stepped portion corresponds to the upper stepped portion and is formed on the front surface of the main body portion in a form of flush with the bottom surface. A lower clamping hole is formed on the bottom surface near the lower stepped portion in a form corresponding to the upper clamping hole; a notch portion is formed on the front surface of the main body portion through the upper and lower stepped portions.

[0009] In this embodiment, it is preferred that: a recess is indented forward on the rear surface of the tail, and several first terminal holes are arranged horizontally in the recess and penetrate through the installation groove.

[0010] In this embodiment, it is preferred that: a wing portion extends upward and obliquely from the free end of the elastic portion. An arc portion is formed between the elastic portion and the wing portion, and anti-slip stripes are provided on the back surface of the elastic portion. Convex thorns are provided on both sides of the fixing portion, and the front surface of the wiring portion is a welding surface.

[0011] In this embodiment, it is preferred that: the tail plate has a rear surface, and several terminal grooves are provided on the upper surface. Each terminal groove extends to the rear surface; the plug plate conforms to the size for filling the recess and has several second terminal holes arranged horizontally. Each second terminal hole communicates with the corresponding terminal groove respectively. Symmetrical transverse ribs are provided on the upper and lower side surfaces or the left and right side surfaces of the plug plate. The transverse ribs are in interference fit with the transverse grooves provided on the upper and lower side walls or the left and right side walls in the recess.

[0012] In this embodiment, it is preferred that: for the front half and the rear half of the wiring part, the second terminal hole is fixed to the front half section of the wiring part, so that the rear half section of the wiring part falls into the terminal slot, and the welding surface formed by the rear half section of the wiring part is exposed on the upper surface of the tail plate.

[0013] In this embodiment, it is preferred that: it further includes a fastening cover body, which is combined with the notch part in a buckling form, and includes a plugging surface at the front and a fastening surface at the rear, wherein: the upper half of the plugging surface is formed as an uphill surface, and the lower half of the plugging surface is arranged with plugging interfaces corresponding to the number of mounting slots. The plugging interface includes an inner upper wall, and the inner upper wall forms a downhill surface relative to the uphill surface.

[0014] In this embodiment, it is preferred that: the fastening surface includes several strip-shaped grooves, and several fastening parts corresponding to the number of mounting slots are formed through the several strip-shaped grooves. Each fastening part has a recessed part and a concave arc part, wherein: the plugging interface corresponds to the recessed part and forms a penetration with the recessed part; the concave arc part connects the recessed part and is formed on the back of the upper and downhill surfaces.

[0015] In this embodiment, it is preferred that: an ax-shaped upper clamping block adapted to the upper clamping hole is formed on the upper side of the fastening part, and an ax-shaped lower clamping block adapted to the lower clamping hole is formed on the lower side of the fastening part.

[0016] To solve the above technical problems, the main object of the present invention is to provide a process method for a wiring terminal block.

[0017] To achieve the above object, the technical solution applied in the present invention is: to provide a process method for a wiring terminal block, the method comprising:

[0018] Step 1: Install the terminal module from the tail of the insulating seat body, so that the elastic parts of the terminals in the terminal group and the raised parts at their front ends are respectively suspended in the mounting slots through the corresponding first terminal holes and the relief holes. When the rear plug is buckled into the recessed part, the fixing parts of the terminals interfere with the corresponding first terminal holes through the convex spines on both sides, thereby fixing the terminal module and the insulating seat body as a whole;

[0019] Step 2: Install each terminal sleeve into each mounting slot respectively, so that the elastic parts of the terminals are in the rectangular holes of the terminal sleeves, then align the screw holes with the counterbored holes of the insulating seat body, and screw them with the screw holes of the terminal sleeves through screws;

[0020] Step 3: Buckle the fastening cover body onto the notch part of the insulating seat body, so that several partition plates are inserted into the corresponding strip-shaped grooves, and then the upper and lower clamping blocks are respectively clamped into the upper and lower clamping holes, thereby forming a plugging interface with multiple plugging interfaces in front of the insulating seat body for the fastening cover body;

[0021] Step 4: Insert the external wire end into the rectangular hole from the insertion interface, and place the wire end below the elastic part. Then, tighten the screw to shift the terminal sleeve in the installation groove, so that the terminal in the terminal group is crimped with the wire end by the crimping component to form conduction.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) By improving the prior art's front and rear rubber cores (two components) into a simplified design of an insulating seat body (one component), both the material and labor assembly costs are reduced, and the production capacity and product yield are also improved; (2) By using the screw to act on the terminal (in the terminal group), and then fixing the terminal to the cable head, the phenomenon that the cable head is easily loosened when directly fixed by the screw is avoided. At the same time, through the guiding structure of the terminal, it is beneficial for the wire core to be inserted and connected, thereby overcoming the potential safety hazard caused by the product being easily loosened. Description of the Drawings

[0023] Figure 1 is the three-dimensional structure schematic diagram of this embodiment.

[0024] Figure 2 is Figure 1 the exploded schematic diagram of the insulating seat body and the crimping component in

[0025] Figure 3 is Figure 1 the structural schematic diagram of the terminal group and the rear plug in

[0026] Figure 4 is Figure 1 the structural schematic diagram of the snap-on cover in

[0027] Figure 5 is the exploded schematic diagram of another perspective of this embodiment.

[0028] Figure 6 is the partial cross-sectional schematic diagram of this embodiment.

[0029] Figure 7 is the three-dimensional structure schematic diagram of another embodiment. Detailed Implementation Modes

[0030] Although the present invention can be easily embodied in different forms of embodiments, only some specific embodiments are shown in the drawings and will be described in detail in this specification. At the same time, it can be understood that this specification should be regarded as an exemplary illustration of the principles of the present invention, and is not intended to limit the present invention to what is described herein.

[0031] Accordingly, a feature pointed out in this specification will be used to illustrate one feature of an embodiment of the present invention, rather than implying that each embodiment of the present invention must have the illustrated feature. In addition, it should be noted that this specification describes many features. Although some features may be combined to show possible system designs, these features can also be used in other combinations not explicitly described. Accordingly, unless otherwise stated, the illustrated combinations are not intended to be limiting.

[0032] In the embodiment shown in the drawings, the indication of directions (such as up, down, left, right, front, and back) is used to explain that the structures and movements of various components of the present invention are not absolute but relative. When these components are in the positions shown in the drawings, these explanations are appropriate. If the descriptions of the positions of these components change, then the indications of these directions also change accordingly.

[0033] The following further elaborates in detail on the preferred embodiments of the present invention in conjunction with the drawings of this specification.

[0034] Embodiment 1:

[0035] Please refer to Figure 1 and also refer to in conjunction with Figure 2 、 Figure 5 and Figure 6 , a wiring terminal block is provided in the figure, including an insulating base body 10, a terminal module 20, a fastening cover body 30, and a wire pressing assembly 40, wherein: the insulating base body 10 has a main body portion 11 and a tail portion 12 extending backward, and symmetric upper and lower grooves 13 are formed between the tail portion 12 and the main body portion 11. In this example, several countersunk holes 111 arranged horizontally penetrate downward through the top surface of the main body portion 11. A plurality of upper clamping holes 112 penetrating downward are arranged horizontally relative to the several countersunk holes 111 on the top surface near the front edge (not marked). An upper step portion 113 extends forward along the top surface in the front (not marked), and a lower step portion 114 extends relative to the bottom surface of the top surface (not marked). Lower clamping holes 1141 are formed on the bottom surface near the lower step portion 114 corresponding to the upper clamping holes 112. In this example, a notch portion 115 is formed between the upper step portion 113 and the lower step portion 114, and the notch portion 115 forms an installation groove 14 backward in the form corresponding to the several countersunk holes 111, so that the several countersunk holes 111 communicate with the corresponding installation grooves 14. A recess 121 is indented forward behind the tail portion 12 (not marked), and several first terminal holes 122 penetrating the installation groove 14 are arranged horizontally in the recess 121. A relief hole 123 is formed above each first terminal hole 122 to communicate with the first terminal hole 122.

[0036] Please refer to Figure 1 and Figure 3 and also refer to in conjunction with Figure 6, the figure includes a terminal module 20 composed of a terminal group 21 and a rear plug 22. The terminal module 20 is provided at the tail of the insulating base 10 in a butt-joint form, where: the terminal group 21 is composed of several terminals arranged, and respectively includes a fixing part 211, an elastic part 212 and a wiring part 213 connected to both ends of the fixing part. An upturned part 214 is formed upward at the free end of the elastic part 212. An arc part 2141 is formed between the elastic part 212 and the upturned part 214, and anti-slip stripes 2121 are provided on the back of the elastic part 212. Convex thorns 2111 are provided on both sides of the fixing part 211, and the front surface of the wiring part 213 is a welding surface 215. The rear plug 22 is formed by injection molding and curing, and includes a plug board 221 and a tail board 222 perpendicular to the back surface of the plug board 221. Symmetrical transverse ribs 2211 are provided on the upper and lower side surfaces or the left and right side surfaces of the plug board 221. The transverse ribs 2211 can be in interference fit (i.e., interference fixation) with the transverse grooves (not shown) provided on the upper and lower side walls or the left and right side walls in the concave part 121; the tail board 222 has a rear surface 2221 and an upper surface. Terminal grooves 2222 corresponding to the number of terminals in the terminal group 21 are provided on the upper surface (not marked). The terminal grooves 2222 extend to the rear surface 2221, and second terminal holes 2223 penetrating the front surface of the plug board 221 are respectively formed by connecting the terminal grooves 2222. The front half parts of the wiring parts 213 of the respective terminals (close to the fixing part 211) are inserted into the corresponding second terminal holes 2223 for interference fixation, so that the terminal group 21 and the rear plug 22 are fixed as a whole. When the terminal group 21 is fixed to the rear plug 22, the rear half parts of the wiring parts 213 of the respective terminals (relative to the front half parts) fall into the corresponding terminal grooves 2222, so that the welding surface 215 is exposed on the upper surface of the tail board 222, thus facilitating welding. In this embodiment, the formation of the terminal module 20 includes two forms: one is the insertion form, usually using discrete insertion, that is, injecting and curing to form the above-mentioned rear plug 22, and respectively inserting the wiring parts 213 of the terminals in the terminal group 21 into the respective second terminal holes 2223 to the terminal grooves 2222, so that the welding surface 215 is exposed to the terminal grooves 2222; the other is to embed the terminal group 21 into a mold and form the rear plug 22 integrated with the terminal group 21 by injection molding and curing (the industry calls it Insert Molding).

[0037] Please refer to Figure 1 and Figure 4 and also refer to Figure 5 and Figure 6, the cover 30 is snapped onto the front of the insulating body 10. Specifically: the cover 30 is coupled to the notch 115 in a form of buckling, and includes a plugging surface 31 at the front and a buckling surface 32 at the back. Among them: the upper half of the plugging surface 31 is formed as an uphill surface (not marked), and the lower half of the plugging surface 31 is arranged with plugging openings 311 corresponding to the number of the mounting grooves 14 (in this example, the upper inner wall of the plugging opening 311 forms a downhill surface 3111 relative to the uphill surface); the buckling surface 32 forms a number of buckling portions (not marked) that fit into the mounting grooves 14 through a number of strip-shaped grooves 321. Each buckling portion has a recessed portion 322 and a concave arc portion 323. Among them: the plugging opening 311 corresponds to the recessed portion 322 and forms a through connection with the recessed portion 32, and the concave arc portion 323 connects the recessed portion 32 and is formed on the back of the upper and downhill surfaces. In this example, the upper and lower side surfaces of each buckling portion are formed with upper and lower locking blocks 323 and 324 in an axe shape that can be respectively adapted to the upper and lower locking holes 112 and 1141.

[0038] Please refer to Figure 1 and Figure 2 and also refer to Figure 5 and Figure 6 , the wire pressing assembly 40 includes a screw 41 and a terminal sleeve 42. The screw 41 can be a male screw of the prior art. The terminal sleeve 42 is a rectangular body, including a rectangular hole 422 that penetrates through the front and back, and a screw hole 421 that penetrates downward from the upper surface (not marked) of the rectangular body and communicates with the rectangular hole 422. The screw 41 can be screwed into the screw hole 421. In this example, the terminal sleeve 42 is installed in the mounting groove 14, so that the elastic portion 212 is located in the rectangular hole 422, and then the screw hole 421 is aligned with the counterbore 111 and screwed with the screw 41, so that the terminal sleeve 42 can be shifted up and down in the mounting groove 14 by adjusting the screw 41, so that the externally inserted wire end (not shown) is electrically connected to the terminal group 21 through the wire pressing assembly 40.

[0039] Please continue to refer to Figures 1 to 6 , the assembly form of this embodiment includes:

[0040] The first step is to load the terminal module 20 from the tail 12 of the insulating base 10, so that the rear plug 22 falls into the recess 121. When the rear plug 22 falls into the recess 121, the elastic portions 212 of the terminals in the terminal group 21 and the upturned portions 214 at their front ends are respectively suspended in the mounting groove 14 through the corresponding first terminal holes 122 and relief holes 123. At this time, the fixing portions 211 of the terminals respectively interfere with the corresponding first terminal holes 122 through the convex spines 2111 on both sides and fix the terminals in the terminal group 21 in the insulating base.

[0041] Step 2: Install each terminal sleeve 42 into each installation groove 14 respectively, such that each terminal elastic part 212 is located in the rectangular hole 422 of the terminal sleeve 42. Then align the screw hole 421 with the counterbore 111 of the insulating base body 10, and screw the screw 41 into the screw hole 421 of the terminal sleeve 42, so that the terminal sleeve 42 can be displaced up and down in the installation groove 14 by adjusting the screw 41, and the externally inserted wire ends (not shown) are electrically connected to the terminal group 21 through the wire pressing assembly 40. In this embodiment, since the counterbore 111 is above each installation groove 14, a boss portion 141 is formed in the installation groove 14 relative to the counterbore 111 to strengthen the strength around the counterbore 111. At the same time, since each installation groove 14 penetrates the notch portion 115, several partition plates 142 are presented in the installation groove 14 at the notch portion 115.

[0042] Step 3: Fasten the fastening cover body 30 to the notch portion 115 of the insulating base body 10, such that several partition plates 142 are inserted into the corresponding strip-shaped grooves 321, and then fasten the upper and lower clamping blocks 323 and 324 to the upper and lower clamping holes 112 and 1141 respectively, so as to firmly fix the fastening cover body 30 in front of the insulating base body 10 to form a multi-hole (such as multiple plug-in interfaces 311) plugging interface. At this time, the terminal sleeve 42 placed in the installation groove 14 can only be displaced up and down by rotating the screw 41 in the limiting space formed by the installation groove 14. Meanwhile, the wing-up portion 214 suspended in front of the installation groove 14 abuts against the concave arc portion 323. Thus, the assembly of the terminal block is completed.

[0043] Embodiment 2:

[0044] Please refer to Figure 7 and also refer to Figures 2 to 6 , Figure 7 except that the terminal group 21 and the rear plug 22 are different from the terminal group 21 and the rear plug 22 in Embodiment 1, the other corresponding components have the same structural configuration. Therefore, for the sake of saving paper and ink, the same structural configuration will not be repeated here.

[0045] In this example, only the structural configurations that are different between the terminal group 21 and the rear plug 22 will be described in detail. The terminal group 21 is composed of several terminals arranged, and respectively includes the same fixing part 211 and elastic part 212 as those in Embodiment 1 (not elaborated here). The difference between this example and Embodiment 1 is that the rear half of the wiring part 213 is a wire clamping part (not labeled), which replaces the welding surface 215. Among them: the wire clamping part includes corresponding front and rear triangular parts 2131 that are bent and extended upward on one side and a fork part 2132 formed between the front and rear triangular parts. On the other side, an isosceles triangular part 2133 extends relative to the fork part 2132. When connecting to a wire core (not shown), the front and rear triangular parts 2131 and the isosceles triangular part 2133 are bent inward, so that the fork part 2132 and the isosceles triangular part 2133 are closed, thereby clamping one end of the wire core inside, so that the wire core and the terminal are connected as a whole. The rear plug 22 has a plug plate 221, and the difference from Embodiment 1 is that there is no tail plate 222 and the related structure of the tail plate 222. Among them: when the plug plate 221 is buckled on the concave part 121, the lower side surface of the plug plate 221 abuts against the front half part of each terminal wiring part 213 (close to the fixing part 211), so as to realize the encapsulation of the back surface of the insulating body 10 and make the wire clamping part hang on the back surface of the plug plate 221.

Claims

1. A terminal block, comprising an insulating seat body, a terminal module, a wire pressing component and a fastening cover body, characterized in that: The insulating seat body has a main body portion and a tail portion extending backward. On the top surface of the main body portion, several counterbores are arranged downward. On the front surface of the main body portion, several installation grooves are formed backward and communicate with the several counterbores respectively. The tail portion has several first terminal holes penetrating through the several installation grooves. Above each first terminal hole, a relief hole is formed in a form of communicating the first terminal hole and the installation groove. A groove is formed symmetrically up and down between the tail portion and the main body portion. The terminal module includes a terminal group and a rear plug formed by injection molding and curing. The rear plug includes a plug plate and a tail plate perpendicular to the back surface of the plug plate. The terminal group includes several terminals. Each terminal includes an elastic portion connected to the front end of the fixing portion and a wiring portion connected to the rear end of the fixing portion. The fixing portion of each terminal is interference-fixed with the corresponding first terminal hole, so that the elastic portion is suspended in the installation groove, and the wiring portions of the terminals respectively pass through the plug plate and are exposed on the upper surface of the tail plate. The wire pressing component includes a screw and a terminal sleeve. The terminal sleeve includes a rectangular hole penetrating through the front and rear and a screw hole penetrating downward from the upper surface and communicating with the rectangular hole. The terminal sleeve is sleeved in the installation groove, so that the elastic portion is located in the rectangular hole, and the screw hole is aligned with the counterbore. The screw is screwed through the counterbore and the screw hole, so that the terminal sleeve is movably arranged in the installation groove. The main body portion further includes upper and lower clamping holes and upper and lower steps. Among them: the upper clamping hole is formed between the counterbore and the front edge of the top surface. The upper step is formed on the front surface of the main body portion in a form of a flush top surface. The lower step corresponds to the upper step and is formed on the front surface of the main body portion in a form of a flush bottom surface. A lower clamping hole is formed on the bottom surface near the lower step in a form corresponding to the upper clamping hole. A notch portion is formed on the front surface of the main body portion through the upper and lower steps. A recess is indented forward on the rear surface of the tail portion. The several first terminal holes are arranged horizontally in the recess and penetrate through the installation groove. The free end of the elastic portion extends upward and obliquely with a raised portion. An arc portion is formed between the elastic portion and the raised portion, and anti-slip stripes are provided on the back surface of the elastic portion. Convex thorns are provided on both sides of the fixing portion. The front surface of the wiring portion is a welding surface. The tail plate has a rear surface, and several terminal grooves are provided on the upper surface. Each terminal groove extends to the rear surface. The plug plate conforms to the size for filling the recess and has several second terminal holes arranged horizontally. Each second terminal hole communicates with the corresponding terminal groove respectively. Symmetrical transverse ribs are provided on the upper and lower side surfaces or the left and right side surfaces of the plug plate. The transverse ribs are in interference fit with the transverse grooves provided on the upper and lower side walls or the left and right side walls in the recess.

2. The terminal block according to claim 1, characterized in that: The wiring portion has a front half portion and a rear half portion. The second terminal hole is fixed to the front half section of the wiring portion, so that the rear half section of the wiring portion falls into the terminal groove, and the welding surface formed by the rear half section of the wiring portion is exposed on the upper surface of the tail plate.

3. The terminal block according to claim 2, characterized in that: It further includes a fastening cover body. The fastening cover body is combined with the notch portion in a buckling manner and includes a plugging surface at the front and a fastening surface at the rear. Among them: the upper half of the plugging surface is formed as an uphill surface, and the lower half of the plugging surface is provided with plugging ports corresponding to the number of installation grooves. The plugging port includes an inner upper wall, and the inner upper wall forms a downhill surface relative to the uphill surface.

4. The terminal block according to claim 3, Features: The snap-fitting surface includes several strip grooves, and several snap-fitting parts that snap into the several installation grooves are formed through the several strip grooves. Each snap-fitting part has a recessed part and a concave arc part, wherein: the insertion port corresponds to the recessed part and forms a penetration with the recessed part; the concave arc part connects the recessed part and is formed on the back of the upper and lower slope surfaces.

5. The terminal block as described in claim 4 is characterized in that: an upper clamping block in the shape of an axe and matched with the upper clamping hole is formed on the upper side of the buckling portion, and a lower clamping block in the shape of an axe and matched with the lower clamping hole is formed on the lower side of the buckling portion.

6. A process for making a terminal block according to any one of claims 1 to 5, Features: The process method of the terminal block includes: Step 1: Install the terminal module from the rear of the insulating seat body, so that the elastic part of each terminal in the terminal group and the wing part at the front end thereof are suspended in the installation groove through the corresponding first terminal hole and the clearance hole respectively. When the rear plug is buckled into the concave part, the fixing part of each terminal interferes with the corresponding first terminal hole through the convex thorns on both sides, thereby fixing the terminal module and the insulating seat body as one; Step 2: Install each terminal sleeve into each installation slot respectively, so that the elastic part of each terminal is in the rectangular hole of the terminal sleeve, and then align the screw hole with the countersunk hole of the insulating seat body, and screw it with the screw hole of the terminal sleeve; Step 3: buckle the buckled cover body to the notch of the insulating seat body, so that the plurality of partitions are inserted into the corresponding strip grooves, and then the upper and lower clamping blocks are respectively clamped in the upper and lower clamping holes, so that the buckled cover body forms a plug-in interface with multiple plug-in ports in front of the insulating seat body; Step 4: Insert the external wire end from the plug interface into the rectangular hole, and place the wire end under the elastic part, and then tighten the screws to shift the terminal sleeve in the installation groove, so that the terminal in the terminal group and the wire end are crimped together through the wire crimping assembly to form conduction.

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