Wiring elastic sheet structure and wiring terminal

Abstract

The utility model discloses a wiring elastic sheet structure and a wiring terminal, the wiring elastic sheet structure comprises an elastic sheet and a conductor, and the elastic sheet comprises a first matching part and a pre-tightening elastic arm; the conductor comprises a second matching part matched with the first matching part and a plug-in clamping opening; a mounting opening is formed in the side direction of the elastic sheet, so that at least part of the second matching part is laterally inserted into the elastic sheet from the mounting opening, and the first matching part is clamped between the pre-tightening elastic arm and the first matching part; the pre-tightening elastic arm is stressed to deform, so that a first interval is formed between the end portion of the pre-tightening elastic arm and the second matching portion, and the first interval forms a second wiring port portion. Compared with the prior art, the utility model has the advantages that the structure is simple, compared with the traditional axial direct insertion nested structure, the structure is changed into a lateral assembly structure, and the assembly difficulty can be reduced on the premise of ensuring the stability, so that the assembly efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of terminal blocks, and particularly relates to a wiring spring piece structure and a terminal block. Background Art

[0002] A terminal block is a fitting product used to achieve electrical connection and is classified as a connector in the industry. With the increasing industrial automation and the increasingly strict and precise industrial control requirements, the usage of terminal blocks is gradually increasing. With the development of the electronics industry, the application scope of terminal blocks is becoming wider and wider, and the types are also increasing. The existing terminal blocks include a wiring structure formed by a conductor and a spring piece. However, most of the existing conductors are axially inserted into the spring piece directly, such as the "A New Type of Terminal Block" provided by CN218632485U, which makes the installation of the two cumbersome and not conducive to mass production and installation. Therefore, it is very important to obtain a terminal block with a wiring spring piece structure that is easy to install. Summary of the Utility Model

[0003] To solve the above at least one technical problem, the utility model provides a wiring spring piece structure, which includes a spring piece and a conductor. The spring piece includes a first fitting part and a pre-tightening elastic arm; the conductor includes a second fitting part that cooperates with the first fitting part and an insertion clamping port.

[0004] An installation opening is laterally provided on the spring piece, and at least part of the second fitting part is laterally inserted into the installation opening. The pre-tightening elastic arm is located below the second fitting part, and the two cooperate with each other to form a wire clamping state or a wire non-clamping state.

[0005] A second wiring port is formed between the outer wall of the clamping part of the pre-tightening elastic arm and the side surface of the second fitting part corresponding to the pre-tightening elastic arm.

[0006] In the wire clamping state, the clamping part of the pre-tightening elastic arm and the second fitting part are away from each other.

[0007] In the wire non-clamping state, at least part of the second fitting part is clamped between the pre-tightening elastic arm and the first fitting part.

[0008] Through the above technical solutions, the utility model adopts the side installation method of the conductor. Compared with the traditional direct insertion type, the side installation can greatly reduce the assembly difficulty, reduce the cost, and improve the production capacity. And the first fitting part is clamped between the pre-tightening elastic arm and the first fitting part, which can not only increase the connection stability between the conductor and the spring piece, but also increase the electrical connection stability after wiring.

[0009] As a preferred technical solution among the above, the elastic piece further includes a connecting arm connecting the first fitting portion and the pre-tightening elastic arm. The first fitting portion, the pre-tightening elastic arm and the connecting arm are integrally formed, which is convenient for mass production.

[0010] Preferably, the connecting arm includes a first connecting portion connected to the first fitting portion and a second connecting portion disposed at an angle θ1 with respect to the first connecting portion, where θ1 ∈ (0, 180), at least a part of the second connecting portion is located on the projection plane of the conductor, and a second spacing for the lateral installation of the conductor is provided between the second connecting portion and the first fitting portion.

[0011] Through the above technical solution, the upper surface of the second connecting portion can also abut against the lower surface of the conductor during wiring to support the conductor and increase the stability of the connection.

[0012] Preferably, at least one first bending portion is provided on the second connecting portion, and the opening direction of the first bending portion faces the second wiring port portion.

[0013] Preferably, the second connecting portion is connected to the pre-tightening elastic arm through an arc bending portion, and the opening direction of the arc bending portion faces the second connecting portion.

[0014] Through the above technical solution, the setting of the arc bending portion can increase the clamping force after elastic deformation, and the first spacing can be opened only by gently pushing the pre-tightening elastic arm.

[0015] The pre-tightening elastic arm is connected to the arc bending portion through a second bending portion, and the bending direction of the second bending portion is opposite to that of the arc bending portion. The setting of the second bending portion can increase the pre-tightening force of the pre-tightening elastic arm.

[0016] As a preferred technical solution among the above, a third bending portion is provided on the pre-tightening elastic arm, and the opening direction of the third bending portion faces the mating insertion clip opening. The setting of the third bending portion facilitates the insertion of the wire from the second wiring port portion.

[0017] The second fitting portion is bent toward the first fitting portion to have a limiting portion to prevent it from coming out after assembly and increase the stability degree after assembly connection; at least a part of the side surface of the second fitting portion facing the pre-tightening elastic arm is provided with an uneven surface for increasing friction. The setting of the uneven surface for increasing friction can increase the stability of wiring and prevent the wire from coming out.

[0018] On the other hand, the present invention provides a wiring terminal, including at least one of the above wiring elastic piece structures, and further including an end shell. A receiving cavity matching the wiring elastic piece structure is opened in the end shell, and a first wire insertion channel matching the mating insertion clip opening and a second wire insertion channel matching the second wiring port portion are further opened on the end shell.

[0019] It further includes a button movably connected to the end housing, at least one control part cooperating with the pre-tightening elastic arm is provided on the button, the button moves axially to control the elastic deformation of the pre-tightening elastic arm, and the control part includes at least one control surface; at least one installation hook is provided on the end housing; the end housing includes a first housing for installing a conductor and a second housing for installing an elastic sheet, and the first housing and the second housing are snap-connected.

[0020] At least part of the button is located outside the end housing and at least part is located inside the end housing, and a limiting hook part for preventing it from detaching from the end housing is provided on the button.

[0021] Compared with the prior art, the advantages of the present utility model are as follows: The structure of the present utility model is simple. Compared with the traditional axially straight-inserted nested structure changed to a side-mounted structure, it can reduce the assembly difficulty and increase the assembly efficiency on the premise of ensuring stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the cooperation of the wiring elastic sheet structure of the present utility model;

[0023] Figure 2 It is a side view of the elastic sheet structure of the present utility model;

[0024] Figure 3 It is a three-dimensional view of the conductor structure of the present utility model;

[0025] Figure 4 It is a three-dimensional sectional view of the wiring terminal of the present utility model;

[0026] Figure 5 It is a three-dimensional view of the button of the present utility model;

[0027] Reference numerals:

[0028] 1 Elastic sheet; 101 First fitting part; 102 Pre-tightening elastic arm; 1021 Third bending part; 103 Installation opening; 104 Second wiring opening part; 105 Connecting arm; 1051 First connecting part; 1052 Second connecting part; 10521 First bending part; 106 Second spacing; 107 Arc bending part; 108 Second bending part;

[0029] 2 Conductor; 201 Second fitting part; 2011 Limiting part; 202 Insertion and clamping opening; 203 First clamping arm; 204 Second clamping arm; 205 Concave-convex surface;

[0030] 3 End housing; 301 Accommodating cavity; 302 First wire insertion channel; 303 Second wire insertion channel; 304 Button; 305 Control surface; 306 Limiting hook part; 307 Installation hook; 308 First housing; 309 Second housing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To enable those skilled in the art to better understand the present utility model and thus more clearly define the scope of protection of the present utility model, the present utility model will be described in detail below with reference to certain specific embodiments of the present utility model. It should be noted that the following are only some specific embodiments of the concept of the present utility model, which are only a part of the embodiments of the present utility model. The specific and direct descriptions of the relevant structures are only for the convenience of understanding the present utility model, and the specific features do not of course and directly limit the scope of implementation of the present utility model.

[0032] Referring to the accompanying drawings, the present utility model adopts the following technical solutions. A wiring elastic sheet structure includes an elastic sheet 1 and a conductor 2. The elastic sheet 1 includes a first fitting portion 101 and a pre-tightening elastic arm 102. The conductor 2 includes a second fitting portion 201 that cooperates with the first fitting portion 101 and an insertion clip opening 202.

[0033] The elastic sheet 1 is laterally provided with an installation opening 103. At least part of the second fitting portion 201 is laterally inserted into the installation opening 103. The pre-tightening elastic arm 102 is located below the second fitting portion 201, and the two cooperate with each other to form a state of clamping or not clamping a wire.

[0034] A second wiring port portion 104 is provided between the outer wall of the clamping portion of the pre-tightening elastic arm 102 and the side surface of the second fitting portion 201 corresponding to the pre-tightening elastic arm 102.

[0035] In the state of clamping the wire, the clamping portion of the pre-tightening elastic arm 102 and the second fitting portion 201 are away from each other.

[0036] In the state of not clamping the wire, at least part of the second fitting portion 201 is clamped between the pre-tightening elastic arm 102 and the first fitting portion 101.

[0037] Through the above technical solutions, the present utility model adopts the side installation method of the conductor 2. Compared with the traditional direct insertion type, the side installation can greatly reduce the assembly difficulty, reduce the cost, and improve the production capacity. And the first fitting portion 101 is clamped between the pre-tightening elastic arm 102 and the first fitting portion 101, which can not only increase the connection stability between the conductor 2 and the elastic sheet 1, but also increase the stable degree of electrical connection after wiring.

[0038] As a preferred technical solution as described above, the elastic sheet 1 further includes a connecting arm 105 that connects the first fitting portion 101 and the pre-tightening elastic arm 102. The first fitting portion 101, the pre-tightening elastic arm 102, and the connecting arm 105 are integrally formed, which is convenient for mass production.

[0039] The conductor 2 further includes a first clamping arm 203 and a second clamping arm 204. The insertion socket 202 is formed between the first clamping arm 203 and the second clamping arm 204. The first clamping arm 203, the second clamping arm 204 and the second mating portion 201 are integrally formed, and the end of the first clamping arm 203 extends to form the second mating portion 201.

[0040] Preferably, the connecting arm 105 includes a first connecting portion 1051 connected to the first mating portion 101 and a second connecting portion 1052 disposed at an angle θ1 with respect to the first connecting portion 1051, where θ1 ∈ (0, 180°). At least a part of the second connecting portion 1052 is located on the projection plane of the conductor 2. A second spacing 106 for laterally mounting the conductor 2 is provided between the second connecting portion 1052 and the first mating portion 101.

[0041] In this embodiment, the first connecting portion 1051 and the second connecting portion 1052 are perpendicularly arranged.

[0042] By the above technical solution, the upper surface of the second connecting portion 1052 can also abut against the lower surface of the conductor 2 during wiring to support the conductor 2 and increase the connection stability.

[0043] Preferably, at least one first bending portion 10521 is provided on the second connecting portion 1052, and the opening direction of the first bending portion 10521 faces the second wiring port portion 104.

[0044] Preferably, the second connecting portion 1052 is connected to the pre-tightening elastic arm 102 through an arc bending portion 107, and the opening direction of the arc bending portion 107 faces the second connecting portion 1052.

[0045] By the above technical solution, the arc bending portion 107 can increase the clamping force after elastic deformation, and only by gently pushing the pre-tightening elastic arm 102 can the first spacing be opened.

[0046] The pre-tightening elastic arm 102 is connected to the arc bending portion 107 through a second bending portion 108, and the bending direction of the second bending portion 108 is opposite to that of the arc bending portion 107. The setting of the second bending portion 108 can increase the pre-tightening force of the pre-tightening elastic arm 102.

[0047] As a preferred technical solution above, a third bending portion 1021 is provided on the pre-tightening elastic arm 102, and the opening direction of the third bending portion 1021 faces the insertion socket 202. The setting of the third bending portion 1021 facilitates the insertion of the wire from the second wiring port portion 104.

[0048] The second mating portion 201 is bent towards the first mating portion 101 to form a limiting portion 2011 to prevent it from coming out after assembly and increase the stability degree after assembly connection; at least part of one side surface of the second mating portion 201 facing the pre-tightening elastic arm 102 is provided with an uneven surface 205 for increasing friction. The setting of the uneven surface 205 for increasing friction can increase the stability of wiring and prevent the wire from coming out.

[0049] On the other hand, the present utility model provides a wiring terminal, which includes at least one of the above-mentioned wiring elastic sheet structures, and further includes an end shell 3. A receiving cavity 301 adapted to the wiring elastic sheet structure is formed in the end shell 3. The end shell 3 is further provided with a first wire insertion channel 302 adapted to the mating insertion clip 202 and a second wire insertion channel 303 adapted to the second wiring port portion 104.

[0050] It further includes a key 304 movably connected to the end shell 3. At least one control portion adapted to the pre-tightening elastic arm 102 is provided on the key 304. The key 304 axially moves to control the elastic deformation of the pre-tightening elastic arm 102. The control portion includes at least one control surface 305; in this embodiment, the control surface 305 is a plurality of corrugated surfaces, and in this embodiment, there are two control portions.

[0051] At least one mounting hook 307 is provided on the end shell 3; the end shell 3 includes a first housing 308 for mounting the conductor 2 and a second housing 309 for mounting the elastic sheet 1. The first housing 308 and the second housing 309 are snap-connected.

[0052] The key 304 is at least partially located outside the end shell 3 and at least partially located inside the end shell 3. A limiting hook portion 306 for preventing it from detaching from the end shell 3 is provided on the key 304.

[0053] Compared with the prior art, the advantages of the present utility model are as follows: The structure of the present utility model is simple. Compared with the traditional axially straight-inserted nested structure, it is changed to a lateral assembly structure, which can reduce the assembly difficulty and thus increase the assembly efficiency on the premise of ensuring stability.

[0054] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.

Claims

1. A wiring shrapnel structure, comprising a shrapnel (1) and a conductor (2), characterized in that: The shrapnel (1) includes a first mating portion (101) and a pre-tightening elastic arm (102); The conductor (2) includes a mating socket (202) and a second mating portion (201) adapted to the first mating portion (101); The shrapnel (1) is laterally provided with a mounting opening (103), and at least a part of the second mating portion (201) is inserted into the mounting opening (103), and the pre-tightening elastic arm (102) is located below the second mating portion (201), and the two cooperate with each other to form a wire clamping state or a non-wire clamping state; A second wiring opening portion (104) is provided between the outer wall of the clamping portion of the pre-tightening elastic arm (102) and the side surface of the second mating portion (201) corresponding to the pre-tightening elastic arm (102); In the wire clamping state, the clamping portion of the pre-tightening elastic arm (102) is away from the second mating portion (201); In the non-wire clamping state, at least a part of the second mating portion (201) is clamped between the pre-tightening elastic arm (102) and the first mating portion (101).

2. The wiring elastic sheet structure according to claim 1, wherein: The shrapnel (1) further includes a connecting arm (105) connecting the first mating portion (101) and the pre-tightening elastic arm (102).

3. The wiring elastic sheet structure according to claim 2, characterized in that: The connecting arm (105) includes a first connecting portion (1051) connected to the first mating portion (101), and a second connecting portion (1052) disposed at an angle θ1 with the first connecting portion (1051), where θ1 ∈ (0, 180), at least a part of the second connecting portion (1052) is located on the projection plane of the conductor (2), and a second spacing (106) for lateral mounting of the conductor (2) is provided between the second connecting portion (1052) and the first mating portion (101).

4. The wiring elastic sheet structure according to claim 3, characterized in that: At least one first bending portion (10521) is provided on the second connecting portion (1052), and the opening direction of the first bending portion (10521) faces the second wiring opening portion (104).

5. The wiring elastic sheet structure according to claim 3, wherein: The second connecting portion (1052) is connected to the pre-tightening elastic arm (102) through an arc bending portion (107), and the opening direction of the arc bending portion (107) faces the second connecting portion (1052).

6. The wiring elastic sheet structure according to claim 5, characterized in that: The pre-tightening elastic arm (102) is connected to the arc bending portion (107) through a second bending portion (108), and the bending direction of the second bending portion (108) is opposite to the bending direction of the arc bending portion (107).

7. The wiring elastic sheet structure according to claim 1, characterized in that: A third bending portion (1021) is provided on the pre-tightening elastic arm (102), and the opening direction of the third bending portion (1021) faces the mating socket (202).

8. The wiring elastic sheet structure according to claim 7, characterized in that: The second mating portion (201) is bent towards the first mating portion (101) with a limiting portion (2011); And / or, at least a part of the side surface of the second mating portion (201) facing the pre-tightening elastic arm (102) is provided with an uneven surface (205) for increasing friction.

9. A terminal block, characterized in that: It includes at least one wiring spring piece structure according to any one of the above-mentioned claims 1-8, and further includes an end shell (3). An accommodation cavity (301) that cooperates with the wiring spring piece structure is provided in the end shell (3), and a first wire insertion channel (302) that cooperates with the plug-in clip opening (202) and a second wire insertion channel (303) that cooperates with the second wiring port part (104) are further provided on the end shell (3).

10. The terminal block according to claim 9, wherein: It further includes a key (304) movably connected to the end shell (3). At least one control part that cooperates with the pre-tightening elastic arm (102) is provided on the key (304). The key (304) moves axially to control the elastic deformation of the pre-tightening elastic arm (102), and the control part includes at least one control surface (305); and / or, at least one mounting hook (307) is provided on the end shell (3); and / or, the end shell (3) includes a first shell body (308) for installing a conductor (2) and a second shell body (309) for installing a spring piece (1), and the first shell body (308) and the second shell body (309) are snap-connected.

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