Direct insertion type wiring terminal

Abstract

The utility model relates to a direct insertion type wiring terminal, which comprises a terminal shell, a cover plate and a current carrying body assembly, the terminal shell is provided with a cavity with an opening at the upper end and at least one wiring hole, the cover plate is provided with a rotatable wrench piece, and the current carrying body assembly is arranged in the cavity of the terminal shell. The cover plate is assembled on the terminal shell in a buckling mode and forms an accommodating cavity, and the wrench piece of the cover plate corresponds to the elastic clamping piece of the current carrying body assembly in the terminal shell so as to be matched with the wrench piece to rotate back and forth and then can abut against the elastic clamping piece or release the abutting against the elastic clamping piece. When a wiring terminal product is assembled, the cover plate and the terminal shell do not need to be used for fixing the current carrying assembly at the same time, and only the terminal shell is needed for fixing the current carrying assembly, so that the assembly of the cover plate with the wrench piece, the current carrying assembly and the terminal shell can be easily completed, the structure of the cover plate is greatly simplified, and the cost is reduced. And the assembly operation efficiency of the whole product is improved.

Description

Technical Field

[0001] The utility model relates to the field of wiring terminals, in particular to a direct plug-in wiring terminal. Background Art

[0002] The existing wiring terminal includes a terminal housing, a cover plate and a current-carrying component, the current-carrying component includes a conductor and an elastic clamping piece, a wiring hole is provided on the terminal housing, the current-carrying component is located in a cavity formed by the terminal housing and the cover plate, and a rotatable wrench is provided on the terminal housing. After the wrench is rotated, it can touch the elastic clamping piece of the current-carrying component to increase the clamping gap between the elastic clamping piece and the conductor, so that an external wire can pass through the clamping gap to complete the wiring or wire removal operation.

[0003] However, the existing terminal blocks of this type have shortcomings: when assembling the components into the terminal block product, it is necessary to first fix the current-carrying component with the hook on the cover plate, then install the cover plate with the current-carrying component fixed into the terminal housing, and then fix the current-carrying component with the terminal housing. Such a terminal block assembly structure is complicated, which reduces the assembly efficiency of the terminal block product. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a plug-in type terminal block with a simple structure and reduced assembly structure complexity in view of the above-mentioned prior art.

[0005] The technical solution adopted by the utility model to solve the above technical problems is: a plug-in terminal, comprising:

[0006] The terminal housing has a cavity with an upper opening and at least one wiring hole, wherein the wiring hole is connected to the cavity;

[0007] A cover plate, assembled and matched with the terminal housing;

[0008] The current-carrying component comprises a conductor and an elastic clamping member, wherein the elastic clamping member cooperates with the conductor to form a clamping gap with an adjustable gap size;

[0009] At least one wrench member is rotatably disposed on the cover plate;

[0010] It is characterized in that the current-carrying component is arranged in the cavity of the terminal housing, the cover plate is assembled to the terminal housing by a snap-fit ​​manner to form a accommodating cavity, and the wrench piece of the cover plate corresponds to the elastic clamping piece of the current-carrying component in the terminal housing so that the wrench piece can press the elastic clamping piece or release the pressure on the elastic clamping piece after rotating back and forth.

[0011] As an improvement, in the plug-in terminal, at least one fixing arm is formed on the cover plate and is inserted into the cavity from the upper end opening, and the fixing arm is snapped into the cavity of the terminal housing.

[0012] Furthermore, in the plug-in terminal, the bottom of the fixed arm has a first snap-fit ​​structure, which is located on the terminal housing and has a first snap-fit ​​structure snap-fitted with the first snap-fit ​​structure formed at the bottom of the cavity.

[0013] As a further improvement, in the plug-in terminal, the cover plate has a cover plate body, the fixing arm is located at one side of the cover plate body and corresponds to the wiring hole, and the cover plate body is fixed to the upper end opening of the inner cavity of the terminal housing by snap-fitting.

[0014] Further, in the plug-in terminal, the cover plate body has a second snap-fit ​​structure, and the terminal housing has a second snap-fit ​​structure snap-fitted with the second snap-fit ​​structure.

[0015] As an improvement, in the plug-in terminal, an opening is formed on the fixed arm, and the opening is arranged corresponding to the wiring hole of the terminal housing so that an external wire can pass through the opening and the wiring hole.

[0016] Furthermore, in the plug-in terminal, the first buckle structure is arranged below the opening.

[0017] As a further improvement, in the plug-in terminal, the cover plate is provided with a stop rib for preventing the corresponding wrench member from shifting along the wiring hole toward the inner side of the terminal housing cavity after assembly.

[0018] As an improvement, in the plug-in terminal, a limiting rib for limiting the position of the conductor is provided in the terminal housing.

[0019] As a further improvement, in the plug-in terminal, wiring holes are respectively formed on the left and right sides of the terminal shell, wrench pieces are respectively provided on the left and right sides of the cover plate, the fixing arms are respectively formed on the left and right sides of the cover plate body, and elastic clamping pieces are respectively provided on the left and right sides of the accommodating cavity; wherein the wiring holes, wrench pieces and elastic clamping pieces are respectively provided in a one-to-one correspondence.

[0020] Compared with the prior art, the utility model has the advantages that: in the plug-in terminal of the utility model, on the basis of the cover plate being provided with a wrench piece, by making the current-carrying component be arranged in the cavity of the terminal housing, the cover plate is assembled to the terminal housing by a snap-fit ​​manner to form a accommodating cavity, the wrench piece of the cover plate corresponds to the elastic clamping piece of the current-carrying component in the terminal housing so that the wrench piece can press the elastic clamping piece or release the pressure on the elastic clamping piece after rotating back and forth, so that when assembling the cover plate, the current-carrying component and the terminal housing to be wrench-fitted, it is not necessary to use the cover plate and the terminal housing to fix the current-carrying component at the same time, and only the terminal housing is required to fix the current-carrying component, so that the assembly of the cover plate with the wrench piece, the current-carrying component and the terminal housing can be easily completed, which greatly simplifies the cover plate structure and improves the assembly operation efficiency of the entire product. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the plug-in terminal block in the embodiment of the utility model;

[0022] Figure 2 for Figure 1 The structural exploded diagram of the plug-in terminal block shown;

[0023] Figure 3 It is a schematic diagram of the cover plate with a spanner piece, the current-carrying component and the terminal housing before assembly;

[0024] Figure 4 This is a schematic diagram of the back structure of the cover plate (with the wrench part removed);

[0025] Figure 5 It is a schematic diagram of the state when the conductor of the current-carrying component is limited by the limiting ribs in the terminal housing;

[0026] Figure 6 for Figure 1 The cross-sectional view of the plug-in terminal block when no wire is connected;

[0027] Figure 7 for Figure 6 The cross-sectional view of the plug-in terminal block shown corresponds to the state when the wire is connected. DETAILED DESCRIPTION

[0028] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] This embodiment provides a plug-in terminal block that simplifies assembly operations. Figures 1 to 7As shown, the plug-in terminal of this embodiment includes a terminal housing 1, a cover plate 2 and a current-carrying component, the terminal housing 1 has a cavity 11 with an upper opening 11a and a wiring hole 10, and the wiring hole 10 is connected to the cavity 11; a wrench piece 5 is rotatably provided on the cover plate 2, the wrench piece 5 has a pressing end 51, and the current-carrying component includes a conductor 3 and an elastic clamping piece 4, and the elastic clamping piece 4 cooperates with the conductor 3 to form a clamping gap with an adjustable gap size; wherein, the current-carrying component is arranged in the cavity 11 of the terminal housing 1, the cover plate 2 is assembled to the terminal housing 1 by a snap-fit ​​manner and forms an accommodating cavity C, the wrench piece 5 of the cover plate 2 corresponds to the elastic clamping piece 4 of the current-carrying component in the terminal housing 1 so that the wrench piece can press the elastic clamping piece 4 or release the pressing on the elastic clamping piece 4 after rotating back and forth. As the wrench member 5 is moved back and forth, the pressing end 51 of the wrench member 5 will press the elastic clamping member 4 to increase the size of the clamping gap or reduce the size of the clamping gap.

[0030] Specifically, as a realization method of assembling the cover plate to the terminal housing by snap-fitting, in this embodiment, a fixing arm 21 is formed on the cover plate 2 and inserted into the cavity 11 from the upper end opening 11a, and the fixing arm 21 is snap-fitted into the cavity 11 of the terminal housing 1. For example, the bottom of the fixing arm 21 has a first snap-fit ​​structure 211, and a first snap-fitting structure 111 is formed on the terminal housing 1 and at the bottom of the cavity 11 to snap-fit ​​with the first snap-fitting structure 211. According to actual needs, in this embodiment, the first snap-fitting structure 211 here is a snap, and the first snap-fitting structure 111 is a snap hole.

[0031] As a way to cooperate with the external wire to pass through the above-mentioned wiring hole, in this embodiment, an opening 210 is formed on the fixed arm 21, and the opening 210 is arranged corresponding to the wiring hole 10 of the terminal housing 1 to allow the external wire L to pass through the opening 210 and the wiring hole 10.

[0032] As a preferred manner of arranging the position of the first buckle structure, in this embodiment, the first buckle structure 211 is arranged below the opening 210 .

[0033] In order to enhance the assembly stability of the cover plate on the terminal housing, in this embodiment, the cover plate 2 has a cover plate body 20, a fixing arm 21 is located on one side of the cover plate body 20 and corresponds to the wiring hole 10, and the cover plate body 20 is fixed to the upper end opening 11a of the inner cavity 11 of the terminal housing 1 by snap-fitting. For example, the cover plate body 20 has a second snap-fitting structure 212, and the terminal housing 1 has a second snap-fitting structure 112 snap-fitting with the second snap-fitting structure 212. Here, the second snap-fitting structure 212 is a snap-fit, and the second snap-fitting structure 112 is a snap-fitting hole.

[0034] After the cover plate is assembled to the terminal housing, in order to prevent the spanner from moving along the wiring hole toward the inner side of the terminal housing cavity during rotation, which may cause abnormal assembly or use of the product, in this embodiment, a stop rib 22 is provided on the cover plate 2 to prevent the corresponding spanner 5 from shifting along the wiring hole toward the inner side of the terminal housing cavity after assembly. The stop rib 22 is located on the cover plate 2 and is longitudinally arranged along the direction in which the fixed arm 21 is formed.

[0035] In addition, according to actual needs, a limiting component 23 for limiting the conductor 3 of the current-carrying component can also be provided on the cover plate 2. For example, the limiting component 23 here is a limiting strip, which is formed on the back of the cover plate body 20 and extends along the formation direction of the fixed arm 21. Preferably, the above-mentioned limiting components 23 are respectively formed on the two side walls located on the back of the cover plate body 20 and facing each other, and the two limiting components 23 are arranged front and back relative to the conductor 3 and the two limiting components 23 are located on the diagonal line.

[0036] In order to prevent the conductor of the current-carrying assembly from shaking after being installed in the terminal housing and to enhance the stability of the conductor, in this embodiment, a limiting rib 12 is provided in the terminal housing 1 to limit the conductor 3 .

[0037] In order to meet the wiring needs of multiple wires, in this embodiment, wiring holes 10 are formed on the left and right sides of the terminal housing 1, wrench pieces 5 are provided on the left and right sides of the cover plate 2, fixed arms 21 are formed on the left and right sides of the cover plate body 20, and elastic clamping pieces 4 are provided on the left and right sides of the accommodating cavity C; wherein the wiring holes 10, wrench pieces 5 and elastic clamping pieces 4 are provided in a one-to-one correspondence. In this way, wiring or wire removal operations can be completed as needed at the wiring holes on the left or right sides of the terminal housing.

[0038] The following combination Figures 1 to 7 , the assembly process of the plug-in terminal block in this embodiment is described:

[0039] When the plug-in terminal needs to be assembled, the current-carrying component is assembled into the terminal housing, and the limiting ribs in the terminal housing limit the conductor of the current-carrying component, and then the cover plate provided with the wrench piece is assembled toward the cavity of the terminal housing, so that the fixing arm of the cover plate is inserted into the cavity through the upper end opening and snapped to the bottom of the cavity in the terminal housing, and the cover plate body of the cover plate is snapped and fixed at the upper end opening of the cavity in the terminal housing. In this way, the assembly of the cover plate with the wrench piece, the current-carrying component and the terminal housing can be easily completed, and the current-carrying component only needs to be fixed by the terminal housing, and the cover plate and the terminal housing do not need to fix the current-carrying component at the same time, which greatly simplifies the cover plate structure and improves the assembly operation efficiency of the entire product.

[0040] Although the preferred embodiments of the present invention are described in detail above, it should be clearly understood that the present invention may be modified and varied by those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Plug-in terminal blocks, including: A terminal housing (1) having a cavity (11) with an upper opening (11a) and at least one wiring hole (10), wherein the wiring hole (10) is connected to the cavity; A cover plate (2) assembled and matched with the terminal housing (1); The current-carrying component comprises a conductor (3) and an elastic clamping member (4), wherein the elastic clamping member (4) cooperates with the conductor (3) to form a clamping gap with an adjustable gap size; At least one wrench member (5) is rotatably arranged on the cover plate (2); The invention is characterized in that the current-carrying component is arranged in the cavity of the terminal housing (1), the cover plate (2) is assembled to the terminal housing (1) by snapping and forms a containing cavity (C), and the wrench piece (5) of the cover plate (2) corresponds to the elastic clamping piece (4) of the current-carrying component in the terminal housing (1) so that the wrench piece can press the elastic clamping piece (4) or release the pressing of the elastic clamping piece (4) after rotating back and forth.

2. The plug-in terminal according to claim 1, characterized in that: The cover plate (2) is formed with at least one fixing arm (21) which is inserted into the cavity (11) from the upper end opening (11a), and the fixing arm (21) is snap-fitted into the cavity (11) of the terminal housing (1).

3. The plug-in terminal according to claim 2, characterized in that: The bottom of the fixed arm (21) has a first snap-fit ​​structure (211), which is located on the terminal housing (1) and has a first snap-fitting structure (111) snap-fitted with the first snap-fit ​​structure (211) formed at the bottom of the cavity (11).

4. The plug-in terminal according to claim 2, characterized in that: The cover plate (2) comprises a cover plate body (20), the fixing arm (21) is located on one side of the cover plate body (20) and corresponds to the wiring hole (10), and the cover plate body (20) is fixed to the upper end opening (11a) of the inner cavity (11) of the terminal housing (1) by means of a snap-fit ​​method.

5. The plug-in terminal according to claim 4, characterized in that: The cover plate body (20) has a second snap-fit ​​structure (212), and the terminal housing (1) has a second snap-fitting structure (112) snap-fitting with the second snap-fitting structure (212).

6. The plug-in terminal according to claim 2, characterized in that: An opening (210) is formed on the fixed arm (21), and the opening (210) is arranged corresponding to the wiring hole (10) of the terminal housing (1), so that an external wire can pass through the opening (210) and the wiring hole (10).

7. The plug-in terminal according to claim 3, characterized in that: The first buckle structure (211) is arranged below the opening (210).

8. The plug-in terminal according to claim 1, characterized in that: The cover plate (2) is provided with a stop rib (22) for preventing the corresponding spanner piece (5) from shifting along the wiring hole toward the inner side of the terminal housing cavity after assembly.

9. The plug-in terminal according to claim 1, characterized in that: The terminal housing (1) is provided with limiting ribs (12) for limiting the position of the conductor (3) of the current-carrying component.

10. The plug-in terminal according to claim 4 or 5, characterized in that: The terminal housing (1) is provided with wiring holes (10) on the left and right sides, the cover plate (2) is provided with wrench pieces (5) on the left and right sides, the cover plate body (20) is provided with the fixing arms (21) on the left and right sides, and the accommodating cavity (C) is provided with elastic clamping pieces (4) on the left and right sides; wherein the wiring holes (10), the wrench pieces (5) and the elastic clamping pieces (4) are provided in a one-to-one correspondence.

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