Improved structure of the electric head limiter of the wire connection terminal

Abstract

The present invention discloses an improved structure of a terminal connector limiter for a wire connection terminal, which provides the functions of easy operation and increased stability of the operation movement of a metal spring under the condition of a simplified structure. The wire connection terminal includes a conductive component mounted in an insulating housing and a terminal connector of a combined conductive component. The terminal connector has a limiter for accommodating and regulating the movement path and range of the metal spring. In addition, the limiter is separated and defined by at least one space and a limiting mechanism arranged on the limiter, and the metal springs are assembled separately, so that the wiring circuit or wire connected to the machine equipment can be directly and simply inserted into the space of the limiter, the metal spring is embedded, and the limiting mechanism is cooperated to prevent the metal spring from being deviated and damaged by excessive bending during the operation process.

Description

Technical Field

[0001] The invention relates to a wire connection terminal, in particular to an improved structure of a connection head limiter of the wire connection terminal. Background Art

[0002] It is a known technique to use a metal component (or conductive component) and a metal spring wrapped in an insulating housing (usually made of plastic material) to press or connect the wire entering the terminal to form an electrical connection (or install it in an operation panel, distribution box, etc.) to establish an electrical wiring connection device for electronic and electrical equipment. For example, US6689955B2 "CONNECTING DEVICE WITH A CONNECTION SPRING OPERATED BY A CAM", or US2003 / 0194918A1, Taiwan Patent No. 103206602 "Switch Terminal Block Structure" and other patents provide typical embodiments.

[0003] One problem with the combined structure of conventional wire connection terminals in terms of operational application is that when the wire is inserted into the housing and the wire connector, the wire will first press down the metal spring, and then use the elastic force of the metal spring and the wire connector to bite or clamp the wire to form an electrical connection. In order to avoid the situation where the bare metal end of the wire damages the housing or causes the metal spring to deflect, scratch the housing, or clamp unstably due to the large number of insertion operations and human negligence when the wire is inserted into the housing, the conventional art has revealed the structure of the wire connector combined limiter, which can improve the above-mentioned problem. For example, patents such as DE202008015306U1, US2013 / 0143433A1 "CONNECTION TERMINAL", DE102012009286A1, and EP1353407A1 provide feasible implementation examples.

[0004] In the conventional wire connector combination limiter and metal spring, during the operation of loading and unloading, a tool (e.g., a screwdriver or the like) is used to press down the metal spring to force the metal spring to bend, thereby releasing the state where the metal spring presses or bites the wire. However, as people familiar with the art know, due to negligence of the operator or the operator's instinctive increase of force in order to release the state where the metal spring presses or bites the wire, the metal spring is often forced to bend excessively. In the case of long-term or frequent pressing down of the metal spring to bend excessively and use, the material of the metal spring is easily fatigued, affecting its function of pressing or biting the wire; and this situation is not what we expect.

[0005] Representatively, these reference data show the skills in the design of electrical connection terminals or wire connectors, metal springs and related combinations; if the structural combination of the wire connector and the metal spring is redesigned to make its structure different from that of conventional users, its usage form can be changed and different from the old method; in essence, its application range will be increased. For example, in accordance with the evolution and design trend of miniaturization of terminal devices and without increasing the volume of terminal devices, the fixed structure or combination relationship of the wire connector and the metal spring is changed to make their structure easy to manufacture and operate.

[0006] Also, it is considered to provide a terminal device (or electrical connector) provided with a limiter and a limit mechanism; the limiter is combined with the limit mechanism to ensure that the movement path of the metal spring is properly contained and regulated, and the limit mechanism has a function and mechanism to prevent the metal spring from excessively bending during the external force operation process, which is particularly considered and required. However, these topics are not specifically taught or disclosed in the above-mentioned reference data. Summary of the invention

[0007] The main purpose of the present invention is to provide an improved structure of a terminal connector limiter for a wire connection terminal, which provides a simple operation and increases the stability of the metal spring operation under the condition of a simplified structure. The wire connection terminal includes a conductive component mounted in an insulating housing and a terminal connector of a combined conductive component. The terminal connector has a limiter to accommodate the movement path and range of the standardized metal spring. In addition, the limiter is separated and defined by at least one space and a limiting mechanism disposed on the limiter, and the metal springs are assembled separately, so that the wiring circuit or wire connected to the machine equipment can be directly inserted into the space of the limiter, the metal spring is embedded, and the limiting mechanism is cooperated to prevent the metal spring from being deviated and damaged by excessive bending during the operation process.

[0008] According to the improved structure of the electric head limiter of the wire connection terminal of the present invention, the limiter includes a first side, a second side connected to the first side, a third side connected to the second side, a fourth side connected to the third side, and the like, which together establish a rectangular frame structure. The first side is bent toward the third side to form a first secondary side, thereby establishing a first space. In addition, the fourth side is bent toward the second side to extend to form a fifth side, and the fifth side and the first side are located on the same plane; the fifth side is bent toward the third side to form a second secondary side, thereby establishing a second space. In addition, the first secondary side and the second secondary side are in parallel and parallel form.

[0009] In a preferred embodiment, the limiting mechanism includes at least the second side and the fourth side forming a combination area, and a stopper (removable) disposed on the combination area. The stopper is a column structure that fits the combination area to regulate the movement range or bending angle of the metal spring and prevent the metal spring from being excessively bent due to external force operation, thereby causing material fatigue or damage.

[0010] According to the improved structure of the terminal block limiter of the wire connection terminal of the present invention, the limiter mechanism includes at least forming a combination area with the second side and the fourth side, and a stopper disposed on the combination area. The stopper is a plate structure extending from the combination area toward the interior of the limiter or the space direction (or transverse direction). BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional structural schematic diagram of the power supply head limiter of the present invention, showing the structure of the power supply head limiter and the limiting mechanism.

[0012] Figure 2 It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation that the first secondary side or the second secondary side extends through the third side and the limiting mechanism.

[0013] Figure 3 It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation of the first secondary side, the second secondary side extending close to the third side and the limiting mechanism.

[0014] Figure 4 for Figure 1 A three-dimensional structural schematic diagram of a derivative embodiment of the present invention; showing a structural situation in which an embedding groove is formed between the second side and the third side, and an embedding groove is formed between the third side and the fourth side.

[0015] Figure 5 for Figure 2 A three-dimensional structural schematic diagram of a derivative embodiment of the present invention; showing a structural situation in which an embedding groove is formed between the second side and the third side, and an embedding groove is formed between the third side and the fourth side.

[0016] Figure 6 for Figure 3 A three-dimensional structural schematic diagram of a derivative embodiment of the present invention; showing a structural situation in which an embedding groove is formed between the second side and the third side, and an embedding groove is formed between the third side and the fourth side.

[0017] Figure 7 It is a three-dimensional structural schematic diagram of the power terminal limiter of the present invention; it shows the structural situation that the bottom end area of ​​the third side forms an extension portion.

[0018] Figure 8It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation that the first secondary side or the second secondary side extends through the third side and the limiting mechanism.

[0019] Fig. 9 It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation of the first secondary side, the second secondary side extending close to the third side and the limiting mechanism.

[0020] Fig.10 It is a three-dimensional structural schematic diagram of a feasible embodiment of the terminal limiter of the present invention; it depicts the structural situation that the first secondary side or the second secondary side extends through the third side, a groove is formed between the limiting mechanism and the second side and the third side, and a groove is formed between the third side and the fourth side.

[0021] Fig.11 for Figure 7 A schematic cross-sectional view of a derivative embodiment of the present invention; depicts a structural situation in which a groove is formed between the limiting mechanism and the second side and the third side, and a groove is formed between the third side and the fourth side.

[0022] Fig.12 for Figure 8 A three-dimensional structural schematic diagram of a derivative embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0023] Fig.13 for Fig. 9 A three-dimensional structural schematic diagram of a derivative embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0024] Fig.14 It is a three-dimensional structural schematic diagram of the power terminal limiter of the present invention; it shows the structural situation that the bottom end area of ​​the third side forms the auxiliary part and the extension part.

[0025] Fig.15 It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation that the first secondary side or the second secondary side extends through the third side and the limiting mechanism.

[0026] Fig.16 It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation of the first secondary side, the second secondary side extending close to the third side and the limiting mechanism.

[0027] Fig.17 It is a three-dimensional structural schematic diagram of a feasible embodiment of the power terminal limiter of the present invention; it depicts the structural situation of the first secondary side, the second secondary side extending close to the third side and the limiting mechanism.

[0028] Fig.18 for Fig.14 A three-dimensional structural schematic diagram of a derivative embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0029] Fig.19 for Fig.15 A three-dimensional structural schematic diagram of a derivative embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0030] Fig. 20 for Fig.19 A three-dimensional structural schematic diagram of a modified embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0031] Fig.21 for Fig.17 A three-dimensional structural schematic diagram of a derivative embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0032] Fig. 22 It is a three-dimensional structural schematic diagram of the power terminal limiter of the present invention; it shows the structural situation that the bottom end area of ​​the third side forms the auxiliary part, the arc part and the extension part.

[0033] Fig.23 It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation that the first secondary side or the second secondary side extends through the third side and the limiting mechanism.

[0034] Fig.24 It is a three-dimensional structural schematic diagram of another embodiment of the terminal limiter of the present invention; it depicts the structural situation of the first secondary side, the second secondary side extending close to the third side and the limiting mechanism.

[0035] Fig.25 It is a three-dimensional structural schematic diagram of a feasible embodiment of the power terminal limiter of the present invention; it depicts the structural situation of the first secondary side, the second secondary side extending close to the third side and the limiting mechanism.

[0036] Fig.26 for Fig. 22 A three-dimensional structural schematic diagram of a derivative embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0037] Fig. 27 It is a three-dimensional structural schematic diagram of an embodiment of the terminal limiter of the present invention; it depicts the structural situation that the limiting mechanism and the embedding grooves are formed between the second side and the third side, and the embedding grooves are formed between the third side and the fourth side.

[0038] Fig.28 for Fig.25 A three-dimensional structural schematic diagram of a derivative embodiment; showing the structural situation in which the limiting mechanism forms an embedding groove between the second side and the third side, and the embedding groove between the third side and the fourth side.

[0039] Description of symbols in the accompanying drawings:

[0040] 10 is a limiter; 11 is a first side; 12 is a second side; 12a and 14a are feet; 12b and 14b are fingers; 123 and 134 are embedded grooves; 13 is a third side; 13a is a mouth; 14 is a fourth side; 15 is a fifth side; 16 is a first secondary side; 16a is a convex end; 17 is a second secondary side; 18 is a first space; 19 is a second space; 20 is a limiting mechanism; 21 is a combination area; 22 is a stopper; 30 is an extension portion; 35 is a secondary portion; 36 is an arc portion; and X is a reference axis. DETAILED DESCRIPTION

[0041] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1 The improved structure of the terminal block limiter of the wire connection terminal of the present invention includes a combination of a limiter and a limit mechanism, which are generally represented by reference numbers 10 and 20 respectively. The limiter 10 and the limit mechanism 20 can be mounted on a known insulating housing, and combined with a conductive bracket, a terminal block and a metal spring (this part is a conventional technology, so it is not shown in the figure) and other parts to form a push button switch device, an electrical connection terminal or other similar devices, providing a function of pivoting a wiring circuit or wire from an electronic or electrical device. Basically, the limiter 10 defines at least one (internal) space, and according to the application type or mode, a structure that allows at least one wire to be inserted and a metal spring is selected.

[0043] In the embodiment adopted, the restrictor 10 is formed of a flat blank material (eg, iron, steel, etc.) and the restrictor 10 is formed of a flat blank material. Figure 1 Rectangular frame structure shown.

[0044] The figure depicts that the limiter 10 includes a first side 11, a second side 12 connected to the first side 11, a third side 13 connected to the second side 12, and a fourth side 14 connected to the third side 13. In addition, the first side 11 is bent toward the third side 13 to form a first secondary side 16 (for example, the first side 11 and the first secondary side 16 form an acute angle, a right angle, or an obtuse angle), thereby establishing a first space 18.

[0045] The figure also shows that the fourth side 14 is bent toward the second side 12 and extended to form the fifth side 15. The fifth side 15 and the first side 11 are located on the same plane. The fifth side 15 is bent toward the third side 13 and extended to form the second secondary side 17 (for example, the fifth side 15 and the second secondary side 17 form an acute angle, a right angle or an obtuse angle), thereby establishing the second space 19. The first secondary side 16 and the second secondary side 17 are parallel and arranged in parallel, and the lengths are respectively less than the lengths of the second side 12 and the fourth side 14 (or the lengths of the first secondary side 16 and the second secondary side 17 are respectively greater than or equal to 1 / 2 of the lengths of the second side 12 and the fourth side 14), forming a first space 18 communicating with the second space 19. In addition, the first space 18 and the second space 19 can accommodate the combined metal spring sheet together or separately, and allow the metal spring sheet to form a swingable form in the limiter 10 (or the first space 18 and the second space 19) to clamp and fix the wire.

[0046] In the known metal spring structure, the metal spring can form a forked structure with two legs respectively pressing the two wires inserted into the limiter 10; therefore, in the embodiment adopted, at least the second side 12 and the first secondary side 16, the fourth side 14 and the second secondary side 17 of the limiter respectively assist in regulating the movement paths of the two legs of the metal spring.

[0047] Figure 1 It is also depicted that the limiter 10 is bent at the upper end position (vertically) of the third side 13 to form an extension portion 30; the extension portion 30 can selectively contact with the switch device or other components of the electrical connection terminal to form a power-on effect, or not contact with the switch device to form a power-off effect.

[0048] In the preferred embodiment, the limiting mechanism 20 includes a combination area 21 at least arranged on the second side 12 and the fourth side 14 of the limiter and a stopper 22 arranged on the combination area 21. The stopper 22 is a columnar structure with a quadrangular profile in cross section, which can be detachably passed through the limiter 10 (or the first space 18, the second space 19) in the figure, and inserted into the combination area 21 to regulate the movement range or bending angle of the metal spring, and prevent the metal spring from being excessively bent due to external force operation to cause material fatigue or damage.

[0049] The figure also shows that the combination area 21 is a hole structure, located on the second side 12 and the fourth side 14 closer to the third side 13; and the combination area 21 is configured at an inclined angle. Assuming that the reference axis X in the figure is used as a reference reference, the configuration angle of the combination area 21 is a configuration that is inclined downward from the first side 11 or the fifth side 15 toward the third side 13. After the inclined configuration of the combination area 21 is combined with the stop body 22, it is helpful for the personnel to press the metal spring sheet against the flat part of the stop body 22 when pressing and bending the metal spring sheet; it can not only reduce the situation that the metal spring sheet is over-bent, but also facilitate the pressing fit between the metal spring sheet and the stop body 22.

[0050] In a feasible embodiment, the second side 12 and the fourth side 14 have a foot 12a, 14a protruding from the bottom position or area of ​​the limiter 10 in the figure and fingers 12b, 14b formed on the feet 12a, 14a (sides); the fingers 12b, 14b help to combine and fix the limiter 10 and the metal spring (or conductive bracket, electrical connector, etc.).

[0051] Please refer to Figure 2 , showing that the third side 13 is formed with a mouth 13a; and the first secondary side 16 (and / or the second secondary side 17) forms a convex end 16a. The figure shows that the total length of the first secondary side 16 and the convex end 16a is greater than the length of the second secondary side 17; therefore, the convex end 16a can enter or pass through the mouth 13a, so that the mouth 13a can be used to limit the load of the first secondary side 16 (and / or the second secondary side 17), so that they form a stable structure and cannot be offset, and the metal spring will not be deflected or shaken during the operation process, and together establish the role of truly regulating the movement path of the metal spring.

[0052] Figure 2 or Figure 3 The first secondary side 16 of the limiter is extended to a position adjacent to the third side 13, thereby establishing a first space 18 with a completely enclosed periphery. The second secondary side 17 is extended to a position adjacent to the third side 13, thereby establishing a second space 19 with a completely enclosed periphery. Furthermore, at least the second side 12 and the first secondary side 16 assist in regulating the movement path of the metal dome; the fourth side 14 and the second secondary side 17 assist in regulating the movement path of another metal dome.

[0053] Figure 3 The figure discloses a situation where the length of the first secondary side 16 is equal to the length of the second secondary side 17. A modified embodiment is also shown in the figure; the limiting mechanism 20 includes at least the second side 12 and the fourth side 14 forming a combination area 21, and a stopper 22 disposed on the combination area 21. The stopper 22 is a plate structure extending from the combination area 21 toward the inside of the limiter 10 or the first space 18, the second space 19 (or in the horizontal direction).

[0054] Figure 3 The positions of the combination area 21 and the stop body 22 on the corresponding second side 12 and the fourth side 14 are also shown. The first secondary side 16 and the second secondary side 17 are respectively formed with a combination area 21 and a stop body 22 of a protruding plate structure extending from its combination area 21 toward the first space 18 and the second space 19.

[0055] In the preferred embodiment, Figure 3 The second side 12, the fourth side 14 and / or the first secondary side 16, the combination area 21 of the second secondary side 17 and the stopper 22 are also arranged to form an inclined angle. Assuming that the reference axis X in the figure is used as a reference reference, the configuration angle of the stopper 22 (and / or the combination area 21) is a configuration that is inclined downward from the first side 11 or the fifth side 15 toward the third side 13.

[0056] It can be understood that the inclined configuration of the stop body 22 helps the operator to press the metal spring sheet against the flat portion of the stop body 22 when pressing the metal spring sheet down to bend it; it not only reduces the risk of excessive bending of the metal spring sheet, but also facilitates the pressing fit between the metal spring sheet and the stop body 22.

[0057] Figure 3 It is also shown that the plate structure stopper 22 can be made by stamping. In a feasible embodiment, the stopper 22 of the limiting mechanism 20 can be directly set on the second side 12, the fourth side 14, the first secondary side 16 and / or the second secondary side 17, or the stopper 22 can be set on the second side 12, the fourth side 14, the first secondary side 16 and / or the second secondary side 17 by bonding.

[0058] Please refer to Figure 4 ,yes Figure 1 A derivative embodiment of ; Figure 5 yes Figure 2 A derivative embodiment of ; Figure 6 yes Figure 3 A derivative embodiment of the invention is shown. The structure of the limiter 10 is shown in which a groove 123 is formed between the second side 12 (upper position) and the third side 13 (upper position), and a groove 134 is formed between the third side 13 and the fourth side 14; the grooves 123 and 134 are used to assist the limiter 10 in combining and fixing the metal spring. The figure also reveals that the position where the side edge of the upper end of the second side 12 is adjacent to the groove 123 and the position where the side edge of the upper end of the fourth side 14 is adjacent to the groove 134, respectively forms finger portions 12b and 14b structures; the finger portions 12b and 14b can cooperate with the grooves 123 and 134 to combine and fix the metal spring.

[0059] Figure 6It is also depicted that the second side 12 and the fourth side 14 form a combination area 21 and a stopper 22. The stopper 22 is a plate structure extending from the combination area 21 toward the inside of the limiter 10 or the first space 18 and the second space 19 (or in the horizontal direction); and the first secondary side 16 and the second secondary side 17 form a structure of the combination area 21.

[0060] See also Figure 7 , Figure 8 , depicting the structure of the bottom end position of the second side 12 and the bottom end position of the fourth side 14 of the limiter forming the foot 12a, 14a and the finger 12b, 14b formed on the foot 12a, 14a (side). And the structure of the bottom end area (vertical bend) of the third side 13 forming the extension 30.

[0061] Figure 7 , Figure 8 The lengths or positions of the first secondary side 16 and the second secondary side 17 are respectively the same as Figure 1 , Figure 2 Revealed situation. Figure 8 It also depicts the second side 12 and the fourth side 14 forming a combination area 21 and a stopper 22 of the plate structure; and the first secondary side 16 and the second secondary side 17 forming a structure of the combination area 21 .

[0062] Fig. 9 The second side 12 and the fourth side 14 form a combination area 21 and a stopper 22 of the plate structure; the first secondary side 16 and the second secondary side 17 extend to a position close to the third side 13 to form a first space 18 and a second space 19 of a peripheral closed type. In addition, the first secondary side 16 and the second secondary side 17 form a structure with a combination area 21.

[0063] Fig.10 The structure of the bottom area (vertical bend) of the third side 13 forming an extension portion 30 is depicted; the third side 13 forms a mouth portion 13a combined with the convex end 16a of the first secondary side 16. Also, the limiter 10 forms a beading groove 123 between the second side 12 (upper position) and the third side 13 (upper position), and a beading groove 134 between the third side 13 and the fourth side 14. The side edge of the upper end of the second side 12 is adjacent to the beading groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the beading groove 134, forming the structural forms of the fingers 12b and 14b respectively.

[0064] Fig.11It shows that the second side 12 and the fourth side 14 form a combination area 21 and a stop body 22 of the plate structure; the limiter 10 forms a groove 123 between the second side 12 (upper end position) and the third side 13 (upper end position), and forms a groove 134 between the third side 13 and the fourth side 14; the side edge of the upper end of the second side 12 is adjacent to the groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the groove 134, forming the structural types of the fingers 12b and 14b respectively.

[0065] Fig.11 The length or position of the first secondary side 16 and the second secondary side 17 disclosed is the same as Figure 1 , Figure 4 , Figure 7 Display situation.

[0066] Fig.12 The first secondary side 16 and the second secondary side 17 form a combination area 21 and a stopper 22 of a plate structure; the convex end 16a of the first secondary side 16 passes through the structure of the third side opening 13a, and cooperates with the second secondary side 17 to establish a first space 18 and a second space 19 of a peripheral closed type. In addition, the limiter 10 forms a beading groove 123 between the second side 12 (upper end position) and the third side 13 (upper end position), and a beading groove 134 between the third side 13 and the fourth side 14. The side edge of the upper end of the second side 12 is adjacent to the beading groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the beading groove 134, forming the structural type of the finger portions 12b and 14b respectively. The figure also shows the structure of the second side 12 and the fourth side 14 forming a combination area 21.

[0067] Fig.13 The invention discloses that the second side 12, the fourth side 14, the first secondary side 16, and the second secondary side 17 form a combination area 21 and a stopper 22 of a plate structure; the first secondary side 16 and the second secondary side 17 extend to a position close to the third side 13, thereby establishing a first space 18 and a second space 19 of a peripheral closed type. In addition, the limiter 10 forms an embedding groove 123 between the second side 12 (upper end position) and the third side 13 (upper end position), and an embedding groove 134 between the third side 13 and the fourth side 14. The side edge of the upper end of the second side 12 is adjacent to the embedding groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the embedding groove 134, forming the structural types of the fingers 12b and 14b respectively.

[0068] Fig.14 , Fig.15 They are shown separately Figure 1 , Figure 2 A derivative embodiment of . Fig.14 , Fig.15 It is revealed that the bottom end area of ​​the third side 13 of the limiter is bent upward in the figure to form a secondary portion 35, and then the secondary portion 35 is bent in the horizontal direction to extend into an extension portion 30.

[0069] Fig.16 The second side 12, the fourth side 14, the first secondary side 16, and the second secondary side 17 form a combination area 21, and a stopper 22 of a combination column structure; the first secondary side 16 and the second secondary side 17 extend to a position close to the third side 13, and establish a first space 18 and a second space 19 of a peripheral closed type. In addition, the bottom end area of ​​the third side 13 of the limiter is bent upward in the figure to form a secondary portion 35, and the secondary portion 35 is bent horizontally to extend to form an extension portion 30.

[0070] Fig.17 The second side 12, the fourth side 14, the first secondary side 16, and the second secondary side 17 form a combination area 21 and a stopper 22 of a plate structure; the first secondary side 16 and the second secondary side 17 extend to a position close to the third side 13, thereby establishing a first space 18 and a second space 19 of a peripherally closed type. In addition, the bottom end area of ​​the third side 13 of the limiter is bent upward in the figure to form a secondary portion 35, and the secondary portion 35 is then bent in the horizontal direction to extend to form an extension portion 30.

[0071] Fig.18 yes Fig.14 A derivative embodiment of the invention discloses that the limiter 10 forms a beading groove 123 between the second side 12 (upper position) and the third side 13 (upper position), and forms a beading groove 134 between the third side 13 and the fourth side 14, and the side edge of the upper end of the second side 12 is adjacent to the beading groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the beading groove 134, forming the structural type of the finger portions 12b and 14b respectively.

[0072] Fig.19 yes Fig.15 A derivative embodiment of the invention discloses that the limiter 10 forms a beading groove 123 between the second side 12 (upper position) and the third side 13 (upper position), and forms a beading groove 134 between the third side 13 and the fourth side 14, and the side edge of the upper end of the second side 12 is adjacent to the beading groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the beading groove 134, forming the structural type of the finger portions 12b and 14b respectively.

[0073] Fig. 20 yes Fig.19 shows the second side 12, the fourth side 14, the first secondary side 16, the second secondary side 17 forms a combination area 21 and the plate structure of the stop body 22 of the type.

[0074] Fig.21 yes Fig.17A derivative embodiment of the invention discloses that the limiter 10 forms a beading groove 123 between the second side 12 (upper position) and the third side 13 (upper position), and forms a beading groove 134 between the third side 13 and the fourth side 14, and the side edge of the upper end of the second side 12 is adjacent to the beading groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the beading groove 134, forming the structural type of the finger portions 12b and 14b respectively.

[0075] Please refer to Fig. 22 , it is revealed that the second side 12 and the fourth side 14 form a combination area 21 and a stopper 22 of a plate structure; the first secondary side 16 and the second secondary side 17 extend to positions greater than or equal to 1 / 2 of the length of the second side 12 and the fourth side 14, respectively, to establish a first space 18 and a second space 19 of a connected type. The bottom end position of the second side 12 and the bottom end position of the fourth side 14 of the limiter form a structure of foot parts 12a, 14a and fingers 12b, 14b formed on the foot parts 12a, 14a (sides). And, the bottom end area of ​​the third side 13 of the limiter is bent upward in the figure to form an arc part 36 and a secondary part 35 connected to the arc part 36, and then the secondary part 35 is bent in the horizontal direction to extend the extension part 30.

[0076] Fig.23 yes Fig.15 The bottom end area of ​​the third side 13 of the display limiter is bent upward in the figure to form an arc portion 36 and a secondary portion 35 connected to the arc portion 36, and then the secondary portion 35 is bent in the horizontal direction to extend to form an extension portion 30.

[0077] Fig.24 The second side 12 and the fourth side 14 form a combination area 21 and a stopper 22 of a plate structure; the first secondary side 16 and the second secondary side 17 extend to a position close to the third side 13, thereby establishing a first space 18 and a second space 19 of a peripheral closed type. In addition, the bottom end area of ​​the third side 13 of the limiter is bent upward in the figure to form an arc portion 36 and a secondary portion 35 connecting the arc portion 36, and then the secondary portion 35 is bent in the horizontal direction to extend to form an extension portion 30. The figure also shows that the first secondary side 16 and the second secondary side 17 form a combination area 21.

[0078] Fig.25 The figure depicts the configuration of the first secondary side 16 and the second secondary side 17 forming a combination area 21 and a stopper 22 of a plate structure; the first secondary side 16 and the second secondary side 17 extend to a position close to the third side 13, thereby establishing a first space 18 and a second space 19 of a peripheral closed type. In addition, the bottom end area of ​​the third side 13 of the limiter is bent upward in the figure to form an arc portion 36 and a secondary portion 35 connecting the arc portion 36, and then the secondary portion 35 is bent in the horizontal direction to extend to form an extension portion 30. The figure also shows the structure of the second side 12 and the fourth side 14 forming a combination area 21.

[0079] Fig.26 yes Fig. 22 A derivative embodiment of the invention is shown; it shows that the limiter 10 forms a beading groove 123 between the second side 12 (upper end position) and the third side 13 (upper end position), and forms a beading groove 134 between the third side 13 and the fourth side 14, and the side edge of the upper end of the second side 12 is adjacent to the beading groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the beading groove 134, forming the structural types of the fingers 12b and 14b respectively.

[0080] Fig. 27 The second side 12 and the fourth side 14 form a combination area 21, respectively combining a stopper 22 of a column structure; the protruding end 16a of the first secondary side 16 passes through the structure of the third side opening 13a, and cooperates with the second secondary side 17 to establish a first space 18 and a second space 19 of a peripheral closed type. In addition, the limiter 10 forms an embedding groove 123 between the second side 12 (upper end position) and the third side 13 (upper end position), and an embedding groove 134 between the third side 13 and the fourth side 14. The side edge of the upper end of the second side 12 is adjacent to the embedding groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the embedding groove 134, forming the structural type of the finger portions 12b and 14b respectively.

[0081] Fig.28 The first secondary side 16 and the second secondary side 17 form a combination area 21 and a stopper 22 of a plate structure; the first secondary side 16 and the second secondary side 17 extend to a position close to the third side 13, thereby establishing a first space 18 and a second space 19 of a peripheral closed type. The limiter 10 forms an embedding groove 123 between the second side 12 (upper position) and the third side 13 (upper position), and an embedding groove 134 between the third side 13 and the fourth side 14. The side edge of the upper end of the second side 12 is adjacent to the embedding groove 123, and the side edge of the upper end of the fourth side 14 is adjacent to the embedding groove 134, forming the structural type of the finger portions 12b and 14b respectively. In addition, the bottom end area of ​​the third side 13 of the limiter is bent upward in the figure to form an arc portion 36 and an auxiliary portion 35 connected to the arc portion 36, and then the auxiliary portion 35 is bent horizontally to extend the extension portion 30.

[0082] Typically, the improved structure of the terminal limiter for the wire connection terminal has the following advantages over the old method while meeting the trend of miniaturization design of the terminal device and not increasing the volume of the terminal device:

[0083] 1. The limiter 10 is combined with the limiting mechanism 20 and the related component structure, which has been redesigned. For example, the limiter 10 includes a first side 11, a second side 12, a third side 13, a fourth side 14 and a fifth side 15; the first side 11 is bent to form a first secondary side 16, and the fifth side 15 is bent to form a second secondary side 17, and together establishes a frame structure of a first space 18 and a second space 19 to accommodate the standard metal spring; the limiting mechanism 20 includes a combination area 21 formed at least on the second side 12, the fourth side 14 and / or the first secondary side 16, the second secondary side 17, and the combination area 21 is combined with a stopper 22 of a column structure or a stopper 22 of a plate structure extending from the combination area 21 toward the inside of the limiter 10, which is obviously different from the conventional user, and also changes the conventional fixing structure or combination relationship of the electrical connector and the metal spring, so that its use and operation mode are different from the old method.

[0084] 2. In particular, the design of the limiter 10 combined with the limiting mechanism 20 can regulate the movement range or bending angle of the metal spring, which significantly improves the situation where the metal spring is excessively bent due to long-term or frequent external force operation, resulting in material fatigue or damage, affecting its ability to press or bite the wire, etc. It not only provides the function of easy operation and easy manufacturing for personnel, but also reduces the situations in which the conventional bare metal end of the wire damages the shell or causes the metal spring to deflect, scratch the shell, and clamp unstably, etc. to the minimum as much as possible.

[0085] 3. Assuming that the inclination angle of the stopper is 0°, and the structure is the same as or parallel to the first side, the third side or the fifth side, the sharp edge of the stopper will correspond to the path of the metal spring pressing down, which is easy to cause damage to the metal spring during long-term and high-frequency operation; the structural matching effect is not ideal. Therefore, the stopper 22 of the combination area 21 is configured in an inclined manner, which helps the metal spring to press against the flat part of the stopper 22 when the operator presses the metal spring down to bend it; it can not only reduce the situation of excessive bending of the metal spring, but also facilitate the pressing fit between the metal spring and the stopper 22.

[0086] Therefore, the present invention provides an effective wire connection terminal contact limiter structure, whose spatial shape is different from the conventional ones and has unparalleled advantages in the old methods, showing considerable progress and fully meeting the requirements of invention patents.

[0087] To sum up, the above embodiments and drawings are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An improved structure of a terminal block limiter for a wire connection terminal, characterized in that: A combination comprising a restrictor and a restricting mechanism; The limiter has at least a first side, a second side connected to the first side, a third side connected to the second side, and a fourth side connected to the third side, so that the limiter defines a frame structure of at least one space; The limiting mechanism includes a combination of a combination area and a stopper disposed on the limiter, wherein the combination area is a hole structure formed on the second side and the fourth side to regulate the movement path and range of the metal spring; The first side is bent and extended toward the third side to form a first secondary side; the fourth side is bent and extended toward the second side to form a fifth side, so that the fifth side and the first side are located on the same plane; the fifth side is bent and extended toward the third side to form a second secondary side, so that the space is divided into a first space and a second space; and The angle between the first side and the first secondary side forms one of an acute angle, a right angle and an obtuse angle; the angle between the fifth side and the second secondary side forms one of an acute angle, a right angle and an obtuse angle; The first secondary side and the second secondary side are parallel and juxtaposed, and their lengths are respectively greater than or equal to 1 / 2 of the lengths of the second side and the fourth side; The first secondary side extends to a position adjacent to the third side to establish a first space with a closed perimeter; the second secondary side extends to a position adjacent to the third side to establish a second space with a closed perimeter; The third side forms a mouth; At least one of the first secondary side and the second secondary side forms a convex end entering the mouth.

2. The improved structure of the electric head limiter of the wire connection terminal according to claim 1, characterized in that: The protruding end is formed on the first secondary side, so that the total length of the first secondary side and the protruding end is greater than the length of the second secondary side.

3. The improved structure of the electric head limiter of the wire connection terminal according to any one of claims 1 or 2, characterized in that: Should The combination area is arranged at an inclined angle, and the arrangement angle of the combination area is arranged to be inclined downward from the first side toward the third side; and The stopper is a cylindrical structure.

4. The improved structure of the electric head limiter of the wire connection terminal according to claim 1 or 2, characterized in that: The combination area of ​​the limiting mechanism is a hole structure formed on the first secondary side and the second secondary side; The combination area is arranged at an inclined angle, and the arrangement angle of the combination area is arranged to be inclined downward from the first side toward the third side; and The stopper is a cylindrical structure.

5. The improved structure of the electric head limiter of the wire connection terminal according to claim 1 or 2, characterized in that: The stopper extends from the combination area toward the inside of the limiter and protrudes into a plate structure; the stopper is configured at an inclined angle, and the configuration angle of the stopper is configured downwardly from the first side toward the third side.

6. The improved structure of the electric head limiter of the wire connection terminal according to claim 1 or 2, characterized in that: The combined area of ​​the limiting mechanism is formed on the first secondary side and the second secondary side; The stopper extends from the combination area toward the first space and the second space of the limiter to form a plate structure; the stopper is configured at an inclined angle, and the configuration angle of the stopper is downwardly inclined from the first side toward the third side.

7. The improved structure of the electric head limiter of the wire connection terminal according to claim 1 or 2, characterized in that: The combination area of ​​the limiting mechanism is formed on the first secondary side and the second secondary side; At least one of the second side combination area and the first secondary side combination area, and at least one of the fourth side combination area and the second secondary side combination area extend toward the first space and the second space respectively to protrude the stopper; The stopper is a plate structure arranged at an inclined angle; the arrangement angle of the stopper is arranged to be inclined downward from the first side toward the third side.

8. The improved structure of the electric head limiter of the wire connection terminal according to claim 1 or 2, characterized in that: The bottom end area of ​​the second side and the bottom end area of ​​the fourth side respectively protrude a foot portion and a finger portion formed on the side edge of the foot portion; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

9. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 3, characterized in that: The bottom end area of ​​the second side and the bottom end area of ​​the fourth side respectively protrude a foot portion and a finger portion formed on the side edge of the foot portion; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

10. The improved structure of the electric head limiter of the wire connection terminal according to claim 4, characterized in that: The bottom end area of ​​the second side and the bottom end area of ​​the fourth side respectively protrude a foot portion and a finger portion formed on the side edge of the foot portion; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

11. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 5, characterized in that: The bottom end area of ​​the second side and the bottom end area of ​​the fourth side respectively protrude a foot portion and a finger portion formed on the side edge of the foot portion; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

12. The improved structure of the electric head limiter of the wire connection terminal according to claim 6, characterized in that: The bottom end area of ​​the second side and the bottom end area of ​​the fourth side respectively protrude a foot portion and a finger portion formed on the side edge of the foot portion; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

13. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 7, characterized in that: The bottom end area of ​​the second side and the bottom end area of ​​the fourth side respectively protrude a foot portion and a finger portion formed on the side edge of the foot portion; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

14. The improved structure of the electric head limiter of the wire connection terminal according to claim 1 or 2, characterized in that: A structure in which an embedding groove is formed between the upper end of the second side and the upper end of the third side, and an embedding groove is formed between the third side and the fourth side; A finger portion is formed on the side edge of the upper end of the second side, adjacent to the embedding groove between the first side and the second side; A finger portion is formed on the side of the upper end of the fourth side, adjacent to the embedding groove between the third side and the fourth side; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

15. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 3, characterized in that: A structure in which an embedding groove is formed between the upper end of the second side and the upper end of the third side, and an embedding groove is formed between the third side and the fourth side; A finger portion is formed on the side edge of the upper end of the second side, adjacent to the embedding groove between the first side and the second side; A finger portion is formed on the side of the upper end of the fourth side, adjacent to the embedding groove between the third side and the fourth side; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

16. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 4, characterized in that: A structure in which an embedding groove is formed between the upper end of the second side and the upper end of the third side, and an embedding groove is formed between the third side and the fourth side; A finger portion is formed on the side edge of the upper end of the second side, adjacent to the embedding groove between the first side and the second side; A finger portion is formed on the side of the upper end of the fourth side, adjacent to the embedding groove between the third side and the fourth side; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

17. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 5, characterized in that: A structure in which an embedding groove is formed between the upper end of the second side and the upper end of the third side, and an embedding groove is formed between the third side and the fourth side; A finger portion is formed on the side edge of the upper end of the second side, adjacent to the embedding groove between the first side and the second side; A finger portion is formed on the side of the upper end of the fourth side, adjacent to the embedding groove between the third side and the fourth side; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

18. The improved structure of the electric head limiter of the wire connection terminal according to claim 6, characterized in that: A structure in which an embedding groove is formed between the upper end of the second side and the upper end of the third side, and an embedding groove is formed between the third side and the fourth side; A finger portion is formed on the side edge of the upper end of the second side, adjacent to the embedding groove between the first side and the second side; A finger portion is formed on the side of the upper end of the fourth side, adjacent to the embedding groove between the third side and the fourth side; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

19. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 7, characterized in that: A structure in which an embedding groove is formed between the upper end of the second side and the upper end of the third side, and an embedding groove is formed between the third side and the fourth side; A finger portion is formed on the side edge of the upper end of the second side, adjacent to the embedding groove between the first side and the second side; A finger portion is formed on the side of the upper end of the fourth side, adjacent to the embedding groove between the third side and the fourth side; One of the upper end and the lower end of the third side is vertically bent to form an extension portion.

20. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 8, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

21. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 9, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

22. The improved structure of the electric head limiter of the wire connection terminal according to claim 10, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

23. The improved structure of the electric head limiter of the wire connection terminal according to claim 11, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

24. The improved structure of the electric head limiter of the wire connection terminal according to claim 12, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

25. The improved structure of the electric head limiter of the wire connection terminal according to claim 13, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

26. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 14, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

27. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 15, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

28. The improved structure of the electric head limiter of the wire connection terminal according to claim 16, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

29. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 17, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

30. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 18, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

31. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 19, characterized in that: The bottom end area of ​​the third side is bent upward to form a secondary portion, and the secondary portion is bent along a horizontal direction to extend out of the extension portion.

32. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 20, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

33. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 21, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

34. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 22, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

35. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 23, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

36. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 24, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

37. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 25, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

38. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 26, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

39. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 27, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

40. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 28, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

41. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 29, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

42. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 30, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

43. The improved structure of the electric head limiter of the wire connection terminal as claimed in claim 31, characterized in that: The bottom end area of ​​the third side is bent upward to form an arc portion, and the arc portion is connected to the auxiliary portion.

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