Terminal block easy to assemble with spring fingers

Abstract

The invention is a terminal block with easily assembled spring pieces. The insulating base has a receiving space and an insertion opening with an insertion direction. The insulating base has a side opening. A guide structure is arranged in the receiving space. The guide structure includes a guide piece and a guide arm. The guide piece has a passing space between the top facing the insertion opening and the insulating base. Two adjacent sides of the guide piece have L-shaped spaces with the insulating base. Two adjacent sides of the guide arm have U-shaped spaces with the insulating base. A lead terminal is positioned in the L-shaped space. The spring piece includes an abutting section, a positioning section, and a U-shaped section connecting the abutting section and the positioning section. The spring piece is inserted into the passing space and the U-shaped space from the side opening and combined with the guide arm. Thus, the spring piece does not need to be bent at a large angle to be assembled into the insulating base, so that the required spring clamping force is maintained.

Description

TECHNICAL FIELD

[0001] The present invention relates to a terminal block, and in particular to a terminal block with spring pieces that are easy to assemble. BACKGROUND

[0002] A terminal block is an electrical connection device that is composed of an insulating base and a lead structure, and is used to provide electrical connection or data transmission lines. The lead structure of the terminal block includes lead terminals and spring pieces. The lead terminals are first inserted into the insulating base, and then the spring pieces are positioned in the lead terminals. When a wire is inserted into the insulating base, the spring pieces elastically hold the wire between the spring pieces and the lead terminals.

[0003] However, in the current terminal block assembly process, the spring pieces of the lead structure need to be assembled into the insulating base at a large angle, and the spring pieces are also positioned on the lead terminals at a large angle. This results in permanent deformation of the spring pieces and loss of the elastic holding force.

[0004] Therefore, the present inventor has made intensive studies and combined with the use of theories to solve the above problems, which is the improvement goal of the present invention. SUMMARY

[0005] An object of the present invention is to provide a terminal block with spring pieces that are easy to assemble, so that the spring pieces do not need to be assembled into the insulating base at a large angle, thereby maintaining the required elastic holding force.

[0006] To achieve the above object, the present invention is a terminal block with spring pieces that are easy to assemble, which includes an insulating base, a guide structure, lead terminals, and spring pieces. The insulating base has a receiving space and a plug-in opening that communicates with the receiving space. The plug-in opening forms a plug-in direction in the receiving space, and the insulating base has a side opening on a side perpendicular to the plug-in direction. The guide structure is arranged in the receiving space. The guide structure includes guide pieces and guide arms connected to the guide pieces. The guide pieces form a through space between the top of the guide pieces facing the plug-in opening and the insulating base. The guide pieces form an L-shaped space between the two adjacent sides of the guide pieces and the insulating base. The guide arms form a U-shaped space that communicates with the through space between the two adjacent sides of the guide arms and the insulating base. The lead terminals are positioned in the L-shaped space. The spring pieces include abutting segments, positioning segments, and U-shaped segments connecting the abutting segments and the positioning segments. The spring pieces are combined on the guide arms by passing through the through space and the U-shaped space from the side opening.

[0007] Compared with the known, the guiding structure of the terminal block of the present application comprises a guiding sheet and a guiding arm, and a passing space is formed between the top facing the insertion port and the insulating seat, L-shaped spaces are formed between the two adjacent sides of the guiding sheet and the insulating seat, and U-shaped spaces are formed between the two adjacent sides of the guiding arm and the insulating seat. Accordingly, when the spring sheet is assembled into the L-shaped space from the side opening, the abutting section can first pass into the passing space and the U-shaped section is sleeved on the ring column of the guiding structure, and at the same time, the positioning section is pressed to extend into the U-shaped space. In this way, the spring sheet can be assembled into the insulating seat without bending at a large angle, so as to maintain the required elastic clamping force and increase the practicability in use. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The figure is a perspective view of the terminal block with easily assembled spring sheets of the present application.

[0009] Figure 2 The figure is a perspective exploded view of the terminal block with easily assembled spring sheets of the present application.

[0010] Figure 3 The figure is a perspective view of the insulating seat of the present application.

[0011] Figure 4 The figure is a perspective view of the terminal block with easily assembled spring sheets of the present application. Figure 5

[0012] The figure is a perspective view of the terminal block with easily assembled spring sheets of the present application. Figure 6 Figure 7 The figure is a perspective view of the terminal block with easily assembled spring sheets of the present application.

[0013] Explanation of symbols in the drawings:

[0014] 1: terminal block;

[0015] 2: cable;

[0016] 10: insulating seat;

[0017] 11: containing space;

[0018] 12: insertion port;

[0019] 120: insertion direction;

[0020] 13: side opening;

[0021] 14: positioning groove;

[0022] 15: tool hole;

[0023] 20: guiding structure;

[0024] 21: guiding sheet;

[0025] 211: top​

[0026] 212: insertion space;

[0027] 213: L-shaped space;

[0028] 214: bottom plate;

[0029] 215: positioning block;

[0030] 22: guide arm;

[0031] 220: U-shaped space;

[0032] 221: extension arm;

[0033] 222: ring column;

[0034] 223: necked section;

[0035] 30: lead-through terminal;

[0036] 31: clamping section;

[0037] 310: clamping groove;

[0038] 32: extension section;

[0039] 321: positioning hole;

[0040] 322: tab;

[0041] 40: spring piece;

[0042] 41: abutting section;

[0043] 42: positioning section;

[0044] 43: U-shaped section;

[0045] 50: insertion post. DETAILED DESCRIPTION

[0046] The detailed description and technical content of the present application are described below in conjunction with the drawings, however, the accompanying drawings are provided for reference and illustration only, and are not intended to limit the present application.

[0047] Please refer to Figures 1 to 3 , respectively, are a perspective view of the terminal block of the present application, a perspective view of the terminal block of the present application, and a perspective view of the insulating base of the present application. The present application is a terminal block 1 that is easy to assemble a spring piece, comprising an insulating base 10, a guide structure 20, a lead-through terminal 30, and a spring piece 40. The guide structure 20 is arranged inside the insulating base 10 and is integrally formed with the insulating base 10. The lead-through terminal 30 and the spring piece 40 are assembled into the insulating base 10 to form the terminal block 1. The structure of the terminal block 1 is described in more detail as follows.

[0048] The insulating base 10 has a receiving space 11 and a plug-in opening 12 communicating with the receiving space 11. The plug-in opening 12 forms a plug-in direction 120 in the receiving space 11, and the insulating base 10 has a side opening 13 on a side perpendicular to the plug-in direction 120.

[0049] The guide structure 20 is disposed in the receiving space 11. The guide structure 20 includes a guide piece 21 and a guide arm 22 connected to the guide piece 21. The guide piece 21 forms a passing space 212 between a top portion 211 facing the plug-in opening 12 and the insulating base 10. In addition, two adjacent sides of the guide piece 21 form an L-shaped space 213 with the insulating base 10. Further, two adjacent sides of the guide arm 22 form a U-shaped space 220 communicating with the passing space 212.

[0050] The guide terminal 30 is made of conductive metal and is positioned in the L-shaped space 213 formed between the two adjacent sides of the guide piece 21 and the insulating base 10.

[0051] The spring piece 40 includes an abutting section 41, a positioning section 42, and a U-shaped section 43 connecting the abutting section 41 and the positioning section 42. The spring piece 40 penetrates the passing space 212 and the U-shaped space 220 from the side opening 13 of the insulating base 10 and is combined with the guide arm 22.

[0052] Specifically, in the guide structure 20, the guide piece 21 is located at a portion of the plug-in opening 12 extending along the plug-in direction 120 and blocks the side opening 13. Preferably, the guide piece 21 is an L-shaped piece, and the top portion 211 of the guide piece 21 is an inclined surface.

[0053] The guide arm 22 extends obliquely from the guide piece 21. The guide arm 22 includes an extension arm 221 connected to the guide piece 21, a ring column 222, and a necked section 223 between the extension arm 221 and the ring column 222. Further, the U-shaped section 43 of the spring piece 40 is sleeved on the ring column 222 and abuts against the necked section 223.

[0054] In an embodiment of the present application, the guide terminal 30 includes a clamping section 31 and an extension section 32 connected to the clamping section 31. The clamping section 31 is formed with a plurality of clamping grooves 310 for positioning the abutting section 41 of the spring piece 40.

[0055] It is to be noted that, in the present embodiment, the guide piece 21 extends a bottom plate 214 towards the inside of the receiving space 11, and the bottom plate 214 has a positioning block 215 (see FIG. 2) on the side facing the plug-in opening 12. Figure 3). In addition, the extension section 32 of the guide terminal 30 is formed with a positioning hole 321 and a tab 322. Furthermore, the insulating base 10 is formed with a positioning groove 14 for positioning the tab 322.

[0056] Furthermore, in the present embodiment, the terminal base 1 further comprises a plug post 50. In addition, the insulating base 10 is formed with a tool hole 15 on one side of the plug-in opening 12, which is communicated with the accommodating space 11. The plug post 50 is movably accommodated in the tool hole 15.

[0057] In an embodiment of the present application, the number of the plug-in openings 12 is plural. The number of the guide structures 20, the number of the elastic pieces 40 and the structure of the guide terminal 30 are set to be plural corresponding to the number of the plug-in openings 12. Specifically, the number of the plug-in openings 12, the guide structures 20 and the elastic pieces 40 is two. The guide terminal 30 is arranged in a U shape and comprises two clamping sections 31 and an extension section 32 connecting the two clamping sections 31. Accordingly, the terminal base 1 can be used for plugging in plural cables 2.

[0058] Please refer to Figure 4 and Figure 5 , which are two combined sectional views of the terminal base of the present application with the easily assembled elastic piece. When the terminal base 1 is assembled, the guide terminal 30 can be inserted into the L-shaped space 213 of the insulating base 10 from the side opening 13. At this time, the positioning hole 321 of the guide terminal 30 is engaged with the positioning block 215 of the insulating base 10 (see Figure 5 ). In addition, the tab 322 is abutted against the positioning groove 14 of the insulating base 10 (see Figure 4 ). Thus, the guide terminal 30 is positioned in the L-shaped space 213.

[0059] In addition, when the elastic piece 40 is assembled into the U-shaped space 220 from the side opening 13, the abutting section 41 of the elastic piece 40 can be first inserted into the penetrating space 212 (see Figure 3 ). Then, the U-shaped section 43 is sleeved on the ring column 222 of the guide structure 20, and at the same time, the positioning section 42 is pressed to extend into the U-shaped space 220. Thus, the elastic piece 40 can be positioned on the guide arm 22 without being bent greatly. It is worth noting that the abutting section 41 of the elastic piece 40 extends in the plug-in opening 12 in the state of not being pressed.

[0060] Please refer to Figure 6 and Figure 7 , which are use schematic views of the terminal base of the present application with the easily assembled elastic piece. As shown in Figure 6As shown, the terminal base 1 of the present application is used to insert at least one cable 2. In use, force can be applied to the insertion post 50 in the tool hole 15 to move it downward. At this time, the insertion post 50 will press against the spring sheet 40 and press the abutting section 41 away from the insertion opening 12, so as to facilitate the cable 2 to extend into the insertion opening 12 to electrically connect the connecting terminal 30.

[0061] Please refer to Figure 7 After the cable 2 is inserted to the position, the force applied to the insertion post 50 can be removed. At this time, the insertion post 50 will be pushed to move upward by the restoring force of the spring sheet 40, and the abutting section 41 will abut against the cable 2 under the action of the elastic force. Accordingly, the cable 2 will be clamped between the connecting terminal 30 and the spring sheet 40, and electrically connected with the connecting terminal 30.

[0062] The above descriptions are only the preferred embodiments of the present application, not intended to limit the patent scope of the present application, other equivalent changes made according to the patent spirit of the present application should also belong to the patent scope of the present application.

Claims

1. A terminal block for easy assembly of spring contacts, used for inserting at least one cable, characterized in that, include: An insulating base has a receiving space and an insertion port communicating with the receiving space, the insertion port having an insertion direction in the receiving space, and the insulating base having an opening on one side perpendicular to the insertion direction; A guide structure is disposed in the accommodating space. The guide structure includes a guide plate and a guide arm connected to the guide plate. The guide arm includes an extension arm connected to the guide plate, a ring post, and a necked section located between the extension arm and the ring post. The guide plate forms a through space between its top facing the insertion port and the insulating seat. An L-shaped space is formed between the two adjacent sides of the guide plate and the insulating seat. A U-shaped space communicating with the through space is formed between the two adjacent sides of the guide arm and the insulating seat. The guide plate extends along the insertion direction at the insertion port and abuts against a portion of the side opening. A conductive terminal is positioned within the L-shaped space; and A spring clip includes an abutting section, a positioning section, and a U-shaped section connecting the abutting section and the positioning section; During assembly, the conductive terminal is inserted into the L-shaped space through the side opening; the spring piece passes through the side opening and places the U-shaped segment on the annular column and abuts against the necked section, so that the abutting segment passes through the through space and the positioning segment extends into the U-shaped space and is attached to the guide arm.

2. The terminal block for easy assembly of spring contacts as described in claim 1, characterized in that, The guide structure and the insulating base are integrally molded.

3. The terminal block for easy assembly of spring contacts as described in claim 1, characterized in that, The guide plate is an L-shaped plate with a sloping top, and the guide arm extends obliquely from the guide plate.

4. The terminal block for easy assembly of spring contacts as described in claim 1, characterized in that, The conductive terminal includes a locking section and an extension section connected to the locking section, the locking section being formed with a plurality of slots for positioning the abutment section of the spring piece.

5. The terminal block for easy assembly of spring contacts as described in claim 4, characterized in that, The guide plate extends toward the interior of the accommodating space and has a base plate. The base plate has a positioning block. The extension of the conductive terminal is formed with a positioning hole and a protrusion. The insulating seat is formed with a positioning groove for positioning the protrusion.

6. The terminal block for easy assembly of spring contacts as described in claim 4, characterized in that, It further includes a plug, the insulating seat having a tool hole formed on one side of the insertion port that communicates with the receiving space, the plug being movably received in the tool hole and capable of pressing against the abutment section so that one end of the abutment section is positioned in one of the slots.

7. The terminal block for easy assembly of spring contacts as described in claim 1, characterized in that, The number of insertion ports is several, and the number of the guide structure, the number of the spring piece, and the structure of the conductive terminal are set to correspond to the number of insertion ports.

8. The terminal block for easy assembly of spring contacts as described in claim 7, characterized in that, The number of the insertion port, the guide structure, and the spring piece is two. The guide terminal is U-shaped and includes two locking sections and an extension section connecting the two locking sections.

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