Improved metal elastic sheet structure for wire connecting device

Abstract

The utility model relates to an improved structure of a metal elastic sheet for a lead connecting device, which has better structural strength, stabilizing / clamping (lead) force and the like. Comprising a body, the body is provided with a base area, and the base area defines a first section and a second section; the first section is connected with a (elastic) clamping area used for clamping an (external) wire, and the second section is connected with the positioning area and used for being combined with the conductive assembly, so that the conductive assembly is electrically connected with the wire. A bent arc section is formed between the first section and the clamping area, and the body is provided with at least one long protruding structure; the long protruding structure is configured on at least partial area of the clamping area, extends towards the direction of the first section and at least passes through the bent arc section; and the conditions that the known metal elastic sheet is easy to deform and instable in contact and affects the conductive efficiency and the safety due to long-term use or high-frequency operation are improved.

Description

Technical Field

[0001] The utility model relates to a structural design of a metal spring for a wire connection device, and in particular to a device for inserting an electrical wire, and a technology for applying the metal spring to press or release the wire. Background Art

[0002] It is a known technique to use an electrical connector or metal piece (or metal spring) enclosed in an insulating housing (usually made of plastic material) to press a wire entering a connection terminal to form a terminal device or a crimping terminal for electrically connecting or releasing the wire.

[0003] This type of electrical conductor connection device includes a type that is inserted into a circuit board (such as a PC circuit board) and a type that allows the electrical connection terminals to be arranged in a snap-fitting grounding track (or conductive track) to establish a shared grounding device for electrical or mechanical equipment and is applied to motors, electronics, automatic control equipment, etc., and can be assembled on an operating panel, distribution box or the like to connect wiring, circuits and / or cooperate with the operation of buttons and knobs to control the power on or off of wiring circuits or wires.

[0004] For example, CN 102204015 A “Electrical connection terminal”, US2014 / 0127932 A1 “ELECTRICALCONNECTIONTERMINAL”, US 5362259 “GROUNDCONDUCTORTERMINAL”, US6627830B2 “PUSH BUTTON AND TEACHING PENDANT WITH THE PUSH BUTTON” patents, etc., provide typical embodiments.

[0005] The electrical connection device usually includes an insulating shell having a through hole or a wire entry hole so that the wire can be inserted into the shell. The shell also defines a chamber to accommodate a conductive component, an electrical connector (or a metal spring), and can form contact or electrical connection with the wire inserted into the shell. The electrical connector includes an elastic free end (or a clamping end), which bites the wire after the wire is inserted into the shell so that the wire will not easily break away from the contact state with the electrical connector (and the conductive component). The contact state between the wire and the electrical connector can only be released if a person uses other tools to reach into the shell and push the free end.

[0006] One of the problems in the structural design and application of the metal spring of this type of electrical connection device is to improve the stability and clamping force of the metal spring to clamp the wire. The prior art has disclosed a means of arranging or stacking another (steel) spring behind the metal spring to increase the force of clamping the wire. For example, patent documents such as EP 3226351 A1, EP3226352A1, and DE 20014025U1 provide specific embodiments.

[0007] However, as those familiar with this technology know, their structure and assembly operations are relatively complicated and troublesome. In particular, during long-term use or high-frequency operation, conventional metal springs are not only prone to deformation, but also prone to material fatigue or breakage in the bending area, which is not what we expect.

[0008] Representatively, these reference data show the use and structural design of the conventional metal spring, electrical connection device or its related combination components. If the structure of the metal spring and the above-mentioned application conditions are redesigned to make it different from the conventional ones, its use pattern can be changed and its application effect can be increased, which is different from the old method.

[0009] For example, taking into account the structure and ease of operation, an ideal metal spring structure should include the following issues: without increasing the number (or material thickness) of metal springs (and / or conductive components), their structure can provide better structural strength and stable pressing force than conventional technologies, and improve the conventional structure that is prone to deformation, material fatigue, breakage, or external factors (for example, negligent collision, pulling, etc.) due to long-term use or high-frequency operation, which affects conductivity and safety.

[0010] However, these issues are not taught or specifically disclosed in the above-mentioned reference materials. Utility Model Content

[0011] Therefore, the main purpose of the utility model is to provide an improved structure of a metal spring for a wire connection device, providing a device with better structural strength and stability / clamping (wire) force, etc.; including a body, the body has a base area, the base area is defined by a first section and a second section; the first section is connected to the (elastic) clamping area for clamping the (external) wire, and the second section is connected to the positioning area, which is used to be combined with the conductive component to form an electrical connection between the conductive component and the wire. In addition, a curved arc section is formed between the first section and the clamping area, and the body is provided with at least one long protrusion structure; the long protrusion structure is arranged on at least a partial area of ​​the clamping area, extends in the direction of the first section, and at least passes through the curved arc section; improve the conventional metal springs that are easy to deform, material fatigue, break, unstable contact, affect the conductive efficiency and safety, etc. after long-term use or high-frequency operation.

[0012] According to the improved structure of the metal spring for the wire connection device of the utility model, the long protrusion structure is protruding toward the upper direction of the body or toward the lower direction of the body. Also, at least one side (or both sides) of the long protrusion structure and the body form a hollow part or a connecting wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] [ Figure 1 ] is a three-dimensional structural schematic diagram of the utility model, depicting the structure of the metal spring and the conductive component.

[0014] [ Figure 2 ]Tie Figure 1 Schematic diagram of the combined structure.

[0015] [ Figure 3 ]Tie Figure 2 Schematic diagram of the plan structure.

[0016] [ Figure 4 ] is a three-dimensional structural schematic diagram of a modified embodiment of the utility model, showing the structural situation in which the side of the long protrusion structure forms a connecting wall.

[0017] [ Figure 5 ]Tie Figure 4 Schematic diagram of the plan structure.

[0018] [ Figure 6 ] is a three-dimensional structural schematic diagram of a derivative embodiment of the utility model; it depicts the structural situation of the hollow portion formed between the long protrusion structure and the main body.

[0019] [ Figure 7 ]Tie Figure 6 Schematic diagram of the plan structure.

[0020] [ Figure 8] is a three-dimensional structural schematic diagram of a modified embodiment of the utility model, showing the structural situation in which the long protrusion structure protrudes toward the lower direction of the main body.

[0021] [ Fig. 9 ]Tie Figure 8 Schematic diagram of the plan structure.

[0022] [ Fig.10 ] is a three-dimensional structural schematic diagram of a feasible embodiment of the utility model; it shows the structural situation in which the long protrusion structure protrudes toward the upper direction of the main body and forms a long mouth.

[0023] [ Fig.11 ]Tie Fig.10 Schematic diagram of the plan structure.

[0024] [ Fig.12 ] is a three-dimensional structural schematic diagram of a derivative embodiment of the utility model; it shows the structural situation in which the long protrusion structure protrudes toward the downward direction of the main body and forms a long mouth.

[0025] [ Fig.13 ]Tie Fig.12 Schematic diagram of the plan structure.

[0026] Description of symbols in the accompanying drawings:

[0027] 10: Base area

[0028] 11: First paragraph

[0029] 12: Second paragraph

[0030] 13: curved arc segment

[0031] 20: Clamping area

[0032] 30: Positioning area

[0033] 31: Shoulders

[0034] 32: Neck

[0035] 33: Deputy Minister

[0036] 34: Gap

[0037] 40: Long protrusion structure

[0038] 41: First End

[0039] 42: Second End

[0040] 43: Connecting wall

[0041] 44: Long mouth

[0042] 50: Hollow part

[0043] 90: Conductive components

[0044] 91: Positioning unit

[0045] 100:Ontology DETAILED DESCRIPTION

[0046] See also Figure 1 , 2 and Figure 3 The improved structure of the metal spring for the wire connection device of the present invention includes a body, generally indicated by reference number 100. The body 100 can be mounted on the conductive component 90 to clamp the (external) wire so that the conductive component 90 and the wire form an electrical connection state; this part belongs to the conventional technology, so it is not described in detail.

[0047] The upper end (portion), lower end (portion), left side, right side, front end (portion), rear end (portion), side ... etc. mentioned in the following description are based on the directions shown in the drawings as reference directions.

[0048] The figure shows that the body 100 has a base area 10 in a (U-shaped) bent structure. The base area 10 is defined by a first section 11 and a second section 12; the first section 11 is connected to a (elastic) clamping area 20 for clamping (external) wires, and the second section 12 is connected to a positioning area 30 for assembly with a conductive component 90.

[0049] Specifically, the positioning area 30 has a shoulder 31 , a neck 32 connected to the shoulder 31 , and a sub-portion 33 connected to the neck 32 , which together define a notch 34 for being removably engaged or positioned on the positioning portion 91 of the conductive component 90 .

[0050] Figure 1 , 2 and Figure 3 It depicts that a curved segment 13 is formed between the first segment 11 and the clamping area 20, and the main body 100 is provided with at least one long protrusion structure 40; the long protrusion structure 40 is arranged on at least a partial area of ​​the clamping area 20, extends toward the first segment 11, and at least passes through the curved segment 13.

[0051] Specifically, the elongated protrusion structure 40 is an elongated plate structure, and is defined with a first end 41 and a second end 42 ; the first end 41 is connected to the clamping area 20 , and the second end 42 is connected to the base area 10 or the first section 11 (or the curved section 13 ).

[0052] In the embodiment adopted, the elongated protrusion structure 40 protrudes upwards (or upwards in the figure) of the main body 100; and a hollow portion 50 (or a gap) is formed between the elongated protrusion structure 40 and the main body 100 (or the curved segment 13, the clamping area 20).

[0053] Please refer to Figure 4 , 5 , depicting a structure of a modified embodiment. It shows that the long protrusion structure 40 protrudes toward the upper direction of the body 100 (or the upper direction in the figure); and the (two) sides of the long protrusion structure 40 form a connecting wall 43 to connect the body 100 (or the curved arc segment 13 (or the first segment 11), the clamping area 20).

[0054] Figure 6 , 7 The diagram depicts a long protrusion structure 40 protruding upwards (or upwards in the figure) from the main body 100; and a hollow portion 50 is formed between the long protrusion structure 40 and the main body 100 (or the curved segment 13 (or the first segment 11), the clamping area 20).

[0055] Figure 8 , 9 The long protrusion structure 40 is shown protruding toward the bottom of the body 100 (or the bottom direction in the figure) to form a structure similar to a long groove. And at least the side of the long protrusion structure 40 is connected to the body 100 (or the curved arc section 13 (or the first section 11), the clamping area 20).

[0056] Please refer to Fig.10 , 11 , depicting a feasible embodiment. The long protrusion structure 40 protrudes upwards (or upwards in the figure) of the body 100 ; and a long mouth 44 is formed on the long protrusion structure 40 .

[0057] See also Fig.12 , 13 , showing a derivative embodiment. The long protrusion structure 40 protrudes toward the lower direction of the body 100 (or the lower direction in the figure), forming a structure similar to a long groove. And, at least the side of the long protrusion structure 40 is connected to the body 100 (or the curved arc section 13 (or the first section 11), the clamping area 20). In addition, the long protrusion structure 40 is formed with a long mouth 44.

[0058] It can be understood that the structural type of the long protrusion structure 40 protruding from the main body 100 (in the upward direction and / or the downward direction) is not only easy to manufacture, but also forms a reinforcing structure between the curved section 13 and the clamping area 20 (and / or the base area 10), thereby improving the conventional metal springs that are easily deformed, fatigued, broken, and have unstable contact after long-term use or high-frequency operation, thereby affecting the conductive efficiency and safety.

[0059] Typically, the improved structure of the metal spring for the wire connection device has the following considerations and advantages compared to the old method while meeting the requirements of structural manufacturing and / or simple operation:

[0060] 1. The body 100 and the related matching structures have been redesigned. For example, a long protrusion structure 40 is arranged between the first section 11 of the base area 10, the curved section 13 and the clamping area 20; the first end 41 of the long protrusion structure 40 is connected to the clamping area 20, and the second end 42 of the long protrusion structure 40 at least passes through and connects the curved section 13 and / or the first section 11; the hollow part 50 or the connecting wall 43 is formed between the long protrusion structure 40 and the body 100, etc., which is obviously different from the conventional user and changes its usage and operation mode, and is different from the old method.

[0061] 2. In particular, without increasing the number (or material thickness) of metal springs (and / or conductive components), their structure can provide better structural strength and stable pressing force than the conventional technology, and improve the conventional structure that is prone to deformation, material fatigue, breakage or external factors (for example, negligent collision, pulling, etc.) due to long-term use or high-frequency operation, which affects conductivity and safety.

[0062] Therefore, the utility model provides an effective improved structure of a metal spring for a wire connection device, the spatial shape of which is different from the conventional one, and has advantages that cannot be matched in the old method, showing considerable progress, and fully meets the requirements of a utility model patent.

[0063] However, the above is only a feasible embodiment of the present utility model and is not intended to limit the scope of implementation of the present utility model. That is, all equivalent changes and modifications made according to the scope of the patent application of the present utility model are covered by the patent scope of the present utility model.

Claims

1. An improved structure of a metal spring for a wire connection device, characterized in that: The improved metal spring structure for a wire connection device comprises a main body (100); The body (100) has a base region (10), and the base region (10) is defined by a first section (11) and a second section (12); the first section (11) is connected to a clamping region (20), and the second section (12) is connected to a positioning region (30); and A curved segment (13) is formed between the first segment (11) and the clamping area (20), and the main body (100) is provided with at least one long protrusion structure (40); The elongated protrusion structure (40) is defined with a first end (41) and a second end (42); the elongated protrusion structure (40) is disposed on at least a partial area of ​​the clamping area (20), extends in the direction of the first section (11), and passes through at least the curved section (13); The elongated protrusion structure (40) is one of protruding toward the upper direction of the main body (100) and protruding toward the lower direction of the main body (100); at least one of a hollow portion (50) and a connecting wall (43) is formed between at least one side edge of the elongated protrusion structure (40) and the main body (100).

2. The improved structure of the metal spring for the wire connection device according to claim 1, characterized in that: The body (100) is mounted on the conductive component (90); the base area (10) is in the form of a U-shaped curved structure; the positioning area (30) has a shoulder (31), a neck (32) connected to the shoulder (31), and a sub-part (33) connected to the neck (32), which together define a notch (34) that can be installed and removed to engage with the positioning part (91) of the conductive component (90).

3. The improved structure of the metal spring for the wire connection device according to claim 1 or 2, characterized in that: The elongated protrusion structure (40) is a long plate structure, wherein the first end (41) is connected to the clamping area (20), and the second end (42) is connected to at least one of the first section (11) and the curved section (13); the elongated protrusion structure (40) is protruding toward the upper direction of the main body (100); and the hollow portion (50) is formed between the elongated protrusion structure (40) and at least the curved section (13) and the clamping area (20).

4. The improved structure of the metal spring for the wire connection device according to claim 1 or 2, characterized in that: The long protrusion structure (40) is in a shape of protruding toward the upper direction of the main body (100); and the two side edges of the long protrusion structure (40) form the connecting wall (43), which is at least connected to the curved arc section (13) and the clamping area (20).

5. The improved structure of the metal spring for the wire connection device according to claim 1 or 2, characterized in that: The long protrusion structure (40) protrudes toward the bottom of the body (100) to form a long groove structure; and At least the side edge of the elongated protruding structure (40) is connected to at least the curved arc section (13) and the clamping area (20).

6. The improved structure of the metal spring for the wire connection device according to claim 1 or 2, characterized in that: The long protrusion structure (40) protrudes upward from the main body (100); and a long mouth (44) is formed on the long protrusion structure (40).

7. The improved structure of metal spring for wire connection device according to claim 3, characterized in that: The elongated protrusion structure (40) is formed with an elongated mouth (44).

8. The improved structure of metal spring for wire connection device according to claim 4, characterized in that: The elongated protrusion structure (40) is formed with an elongated mouth (44).

9. The improved structure of metal spring for wire connection device according to claim 5, characterized in that: The elongated protrusion structure (40) is formed with an elongated mouth (44).

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