Wiring terminal capable of preventing mistaken installation and electrical equipment

Abstract

The utility model provides an anti-misuse wiring terminal and electrical equipment, the anti-misuse wiring terminal comprises a wiring frame, a driving member and a wire pressing structure, the wiring frame is provided with a wire passing space for a wire to pass through, the wire pressing structure is assembled on the wiring frame in a swinging manner, and the driving member drives the wire pressing structure to pass through the wire passing space. The wire pressing structure is provided with a crimping surface corresponding to the threading space and two side walls which are perpendicular to the crimping surface and are arranged oppositely, and the driving part acts on the wire pressing structure to drive the wire pressing structure to swing towards the threading space; one side wall of the wire pressing structure is provided with a receding notch, the wiring frame is provided with a protruding protruding part, and the protruding part is contained in the receding notch. In the assembling process, only the side with the receding notch is aligned with the protruding part for assembling, in-place assembling can be achieved, and the situation that products are unqualified due to the fact that parts are assembled reversely is effectively prevented.

Description

Technical Field

[0001] The utility model relates to the field of electrical equipment, in particular to a mis-installation-proof wiring terminal and electrical equipment. Background Art

[0002] Electrical equipment is usually connected to external circuits through a terminal block. CN213242439U discloses a terminal block, including a terminal block, a terminal screw and a fastener. The terminal screw is arranged on the terminal block and is driven to cooperate with the fastener. The terminal block includes a first wire pressing side wall, and the fastener includes a second wire pressing side wall that cooperates with the first wire pressing side wall. The fastener is rotated by screwing the terminal screw, so that the second wire pressing side wall presses the wire inserted between the first wire pressing side wall and the second wire pressing side wall between the first wire pressing side wall and the second wire pressing side wall. The fastener also includes a plurality of wire pressing ridges arranged on the second wire pressing side wall, and the extension direction of the wire pressing ridges intersects with the direction in which the wire is inserted into the terminal block. During assembly, the second wire pressing side wall of the fastener needs to correspond to the first wire pressing side wall of the terminal block, but the terminal block is not provided with a limiting structure, and the fastener is easily installed in reverse, resulting in unqualified products. Utility Model Content

[0003] Therefore, in order to solve the above problems, the utility model provides a wiring terminal and an electrical device that can prevent mis-installation.

[0004] To achieve the above purpose, the technical solution provided by the utility model is as follows:

[0005] A wiring terminal for preventing mis-installation comprises a wiring frame, a driving member and a wire pressing structure, wherein the wiring frame has a wire threading space for the wire to be threaded, the wire pressing structure can be swingably assembled on the wiring frame, the wire pressing structure has a crimping surface corresponding to the wire threading space and two side walls which are perpendicular to the crimping surface and arranged opposite to each other, the driving member acts on the wire pressing structure to drive the wire pressing structure to swing toward the wire threading space; a clearance notch is arranged on one of the side walls of the wire pressing structure, the wiring frame is provided with a raised convex portion, and the convex portion is accommodated in the clearance notch.

[0006] Furthermore, the wiring frame is a hollow frame having a receiving cavity, the wire pressing structure is received in the receiving cavity, and the protrusion is formed on one of the side walls of the wiring frame and extends toward the receiving cavity.

[0007] Further, the side wall of the wiring frame on which the protrusion is provided is defined as a first wiring frame side wall, the wiring frame has a second wiring frame side wall arranged opposite to the first wiring frame side wall, and the second wiring frame side wall is provided with a positioning hole.

[0008] Furthermore, a line extending from the swing fulcrum to the swing end of the crimping surface conforms to an Archimedean spiral.

[0009] Furthermore, the crimping surface of the wire crimping structure is recessed with a plurality of recesses, and crimping teeth are formed between adjacent recesses.

[0010] Furthermore, the wiring frame has at least a first side opening and a second side opening adjacent to the first side opening, the first side opening of the wiring frame is equipped with a wire pressing plate, and the threading space is located between the wire pressing structure and the wire pressing plate; the second side opening serves as a wire insertion port to connect the threading space.

[0011] Furthermore, the wire pressing structure includes a connected wire pressing block and a connecting shaft column, the connecting shaft column is assembled on the wiring frame so that the wire pressing block swings with the connecting shaft column as a fulcrum, and the side surface of the wire pressing block corresponding to the wire pressing plate is the crimping surface.

[0012] Furthermore, the wire pressing block also has an abutment end arranged opposite to the crimping surface, and the driving member is a pan head screw, which is screwed on the wiring frame and abuts on the abutment end of the wire pressing block.

[0013] Furthermore, the wire pressing plate includes a wire pressing plate body and a dovetail-shaped connecting portion connected to an opposite side of the wire pressing plate body, a dovetail-shaped mounting opening is opened on an opposite side of the wiring frame, and the connecting portion is fixedly assembled in the dovetail-shaped mounting opening of the wiring frame.

[0014] An electrical device comprises at least the above-mentioned anti-misinstallation wiring terminal.

[0015] The technical solution provided by the utility model has the following beneficial effects:

[0016] By providing a clearance notch on one of the side walls of the wire pressing structure and a convex portion on the wiring frame, during assembly, only by aligning the side with the clearance notch with the convex portion can the assembly be completed in place, effectively preventing product failure caused by reverse assembly of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure shows a partial structure diagram of the wiring terminal for preventing mis-installation in the embodiment. Figure 1 ;

[0018] Figure 2 Shown Figure 1 Sectional view along line AA;

[0019] Figure 3 The figure shows a partial structure diagram of the wiring terminal for preventing mis-installation in the embodiment. Figure 2 ;

[0020] Figure 4 Shown is a schematic diagram of the structure of the wiring frame in the embodiment;

[0021] Figure 5 The structure of the wire pressing structure in the embodiment is shown as follows Figure 1 ;

[0022] Figure 6 The figure is a schematic diagram of the structure decomposition of the wiring terminal for preventing mis-installation in the embodiment;

[0023] Figure 7 The structure of the wire pressing structure in the embodiment is shown as follows Figure 2 ;

[0024] Figure 8 The figure shows a cross-sectional view of the wiring terminal in the embodiment when no wire is inserted;

[0025] Fig. 9 The figure shows a cross-sectional view of the wiring terminal in the embodiment when a wire is inserted;

[0026] Fig.10 Shown is a cross-sectional view of the connecting terminal in the embodiment when another wire is inserted. DETAILED DESCRIPTION

[0027] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0028] In the description of the present invention, terms such as "up", "down", "left", "right", "front", "back", etc., and the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0029] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0030] Reference Figures 1 to 8 As shown, the present embodiment provides a terminal block for preventing mis-installation, comprising a wiring frame 10, a driving member 30 and a wire pressing structure 20, wherein the wiring frame 10 has a wire threading space 101 for the wire 1 to be threaded, and the wire pressing structure 20 is swingably mounted on the wiring frame 10. Specifically, the wire pressing structure 20 has a crimping surface 23 corresponding to the wire threading space 101 and two side walls perpendicular to the crimping surface 23 and arranged opposite to each other, and the driving member 30 acts on the wire pressing structure 20 to drive the wire pressing structure 20 to swing toward the wire threading space 101.

[0031] A clearance notch 24 is provided on one of the side walls of the wire pressing structure 20. Specifically, the side wall provided with the clearance notch 24 is defined as a first wire pressing structure side wall 221, and the other side wall not provided with the clearance notch 24 is defined as a second wire pressing structure side wall 222. The wiring frame 10 is provided with a raised convex portion 16, and the convex portion 16 is accommodated in the clearance notch 24.

[0032] Thus, through the cooperation between the convex part 16 and the clearance notch 24, during assembly, only when the side with the clearance notch 24 (i.e., the first wire pressing structure side wall 221) is aligned with the convex part 16 for assembly, can the assembly be completed in place. If the second wire pressing structure side wall 222 does not have the clearance notch 24 during reverse assembly, it will interfere with the convex part 16 and cannot be assembled. In this way, it is effectively prevented that the product is unqualified due to the reverse assembly of the parts. And the structure of preventing mis-assembly is simple and effective.

[0033] The wiring operation of the anti-misinstallation terminal is as follows: Fig. 9 , Fig.10 As shown, the wire 1 is inserted into the wire threading space 101 of the wiring frame 10, and then the wire pressing structure 20 is driven to swing toward the wire threading space 101 by operating the driving member 30 until the crimping surface 23 of the wire pressing structure 20 is crimped onto the wire 1, thereby clamping and fixing the wire 1.

[0034] The wiring frame 10 is a hollow frame having a housing cavity 100, and the wire pressing structure 20 is accommodated in the housing cavity 100. Specifically, the wire threading space 101 is a part of the housing cavity 100. The protrusion 16 is formed on one of the side walls of the wiring frame 10 and extends toward the housing cavity. The side wall of the wiring frame 10 on which the protrusion 16 is provided is defined as a first wiring frame side wall 111, and the wiring frame 10 has a second wiring frame side wall 121 arranged opposite to the first wiring frame side wall 111. Specifically, in this embodiment, the wiring frame 10 is a hollow frame composed of a front side plate 11, a rear side plate 12, an upper side plate 13 and a lower side plate 14, wherein a convex portion is formed on the front side plate 11, that is, the first wiring frame side wall 111 is the front side plate 11, the second wiring frame side wall 121 is the rear side plate 12, the front side plate 11 corresponds to the first wire pressing structure side wall 221 of the wire pressing structure 20, and the rear side plate 12 corresponds to the second wire pressing structure side wall 222 of the wire pressing structure 20. A positioning hole 17 is provided on the second wiring frame side wall 121 (i.e., the rear side plate 12), and the positioning hole 17 is provided for positioning and matching with an external structure.

[0035] Specifically, in this embodiment, the protrusion 16 is a convex bulge structure integrally formed by stamping on the side wall 221 of the first wire pressing structure. Such a configuration makes molding easier.

[0036] The line extending from the swing fulcrum o to the swing end e of the crimping surface 23 conforms to the Archimedean spiral a. It can be understood that the swing fulcrum o is equivalent to the central starting point of the Archimedean spiral a, and the line extending from the swing fulcrum o to the swing end e of the crimping surface 23 is one of the line segments of the Archimedean spiral a. In this way, the crimping position of wires 1 with different diameters is kept uniform, such as when crimping a thick wire 1 (such as Fig. 9 As shown) and thin wire 1 (as Fig.10 When the crimping position is substantially maintained at the same height, the wiring depth and the terminal size can be effectively reduced for thicker wires 1. In addition, wires 1 of different diameters are all tangent to the Archimedean spiral a during installation, which can improve the wiring stability.

[0037] Furthermore, in this embodiment, in order to better achieve the crimping of the wire 1, the crimping surface 23 of the wire crimping structure 20 has a crimping tooth portion 202. Specifically, the crimping surface 23 of the wire crimping structure 20 is recessed with a plurality of recesses 201, and the crimping tooth portion 202 is formed between adjacent recesses 201, that is, the crimping tooth portion 202 is formed by designing recesses 201 on the crimping surface 23. The crimping tooth portion 202 is crimped with the wire 1, and has a certain bite fit with the wire 1, so that the crimping is more stable.

[0038] There are multiple crimping teeth 202 , which are distributed along the swing fulcrum o toward the swing end e, ensuring that wires 1 of different diameters can cooperate with the crimping teeth 202 when being crimped.

[0039] Of course, in other embodiments, the crimping surface 23 of the wire crimping structure 20 may not form the structure of the crimping teeth 202 , that is, the entire crimping surface 23 is a smooth and complete surface.

[0040] The wiring frame 10 has at least a first side opening 104 and a second side opening 102 adjacent to the first side opening 104. The first side opening 104 of the wiring frame 10 is equipped with a wire pressing plate 40. The threading space 101 is located between the wire pressing structure 20 and the wire pressing plate 40; the second side opening 102 is used as a wire insertion port to connect the threading space 101. Specifically, in this embodiment, the first side opening 104 is the right side opening of the wiring frame 10, and the second side opening 102 is the adjacent upper side opening. The wire 1 is inserted into the threading space 101 through the upper side opening. The wire pressing structure 20 is driven by the driving member 30 to be crimped on the wire 1, and the wire 1 is clamped between the wire pressing structure 20 and the wire pressing plate 40. The setting of the first side opening 104 of the wiring frame 10 facilitates the assembly of the wire pressing structure 20 in the wiring frame 10 first, and then the wire pressing plate 40 is installed. At the same time, by adding the structure of the wire pressing plate 40, the wire pressing plate 40 can also bear a current carrier for carrying current.

[0041] In this embodiment, the wire pressing structure 20 includes a wire pressing block 22 and a connecting shaft column 21 connected to each other, and the connecting shaft column 21 is assembled on the wiring frame 10 so that the wire pressing block 22 swings with the connecting shaft column 21 as a fulcrum, and the side of the wire pressing block 22 corresponding to the wire pressing plate 40 is a crimping surface 23. Specifically, the wire pressing block 22 and the connecting shaft column 21 are an integral connection structure.

[0042] Furthermore, an opposite side (i.e., the front side plate 11 and the rear side plate 12) of the wiring frame 10 is recessed with an accommodation notch 15, and both ends of the connecting shaft column 21 are assembled in the accommodation notch 15 on the opposite side. One installation method is: the two ends of the connecting shaft column 21 are respectively installed in the accommodation notches 15 of the front side plate 11 and the rear side plate 12, and the wire pressing block 22 is installed in the wiring frame 10 through the first side opening 104 and the second side opening 102, and then the wire pressing plate 40 is assembled to achieve simple installation.

[0043] Specifically, the wire pressing plate 40 includes a wire pressing plate body 41 and a dovetail-shaped connecting portion 42 connected to one opposite side (i.e., the front and rear sides) of the wire pressing plate body 41. A dovetail-shaped mounting opening 103 is provided on one opposite side (i.e., the front side plate 11 and the rear side plate 12) of the wiring frame 10. The connecting portion 42 is fixedly assembled in the dovetail-shaped mounting opening 103 of the wiring frame 10. The dovetail-shaped fixed mounting structure is adopted, and the installation is more firm.

[0044] The surface of the wire pressing plate 40 on one side facing the wire threading space 101 has a plurality of recessed depressions 43. Specifically, the recess 43 is a strip-shaped recess extending along the width direction (i.e., the front-to-back direction) of the wire pressing plate 40 and perpendicular to the insertion direction of the wire 1, which can increase the contact friction with the wire 1 and improve the crimping stability of the wire 1.

[0045] Of course, in other embodiments, when the wire pressing structure 20 is assembled to the wiring frame 10 in other ways, the wire pressing plate 40 and the front side plate 11 and the rear side plate 12 of the wiring frame 10 may also be integrally connected.

[0046] Furthermore, the driving member 30 is a pan head screw 31, and the pan head screw 31 is screwed on the wiring frame 10 and abuts against the wire pressing structure 20. Figure 4 As shown, the right side surface of the wire pressing structure 20 is the crimping surface 23, and the pan head screw 31 is screwed on the upper side plate 13 of the wiring frame 10 and is located on the left side of the connecting shaft column 21. The pan head screw 31 abuts against the left end portion of the wire pressing structure 20. By screwing the pan head screw 31, the left end of the wire pressing structure 20 is driven downward, so that the wire pressing structure 20 swings from left to right to achieve crimping of the wire 1.

[0047] The drive of the pan head screw 31 can realize stepless adjustment and adapt to the crimping of wires 1 of different diameters. At the same time, the pan head screw 31 can provide greater wiring torque. And because the line extending from the swing fulcrum o to the swing end e of the crimping surface 23 conforms to the design of the Archimedean spiral a, the wires 1 of different diameters are always tangent to the crimping surface 23 during installation, thus ensuring that the torque of the pan head screw 31 can be effectively transmitted, further improving the wiring reliability.

[0048] Of course, in other embodiments, the driving member 30 may also be other components that can drive the wire pressing structure to swing.

[0049] This embodiment also provides an electrical device, which at least includes the above-mentioned connection terminal.

[0050] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. A terminal block for preventing mis-installation, comprising a wiring frame, a driving member and a wire pressing structure, wherein the wiring frame has a wire threading space for a wire to be threaded, the wire pressing structure is swingably mounted on the wiring frame, the wire pressing structure has a crimping surface corresponding to the wire threading space and two side walls perpendicular to the crimping surface and arranged opposite to each other, the driving member acts on the wire pressing structure to drive the wire pressing structure to swing toward the wire threading space; characterized in that: A clearance notch is provided on one of the side walls of the wire pressing structure, and a raised convex portion is provided on the wiring frame, and the convex portion is accommodated in the clearance notch.

2. The anti-misinstallation terminal according to claim 1, characterized in that: The wiring frame is a hollow frame having a receiving cavity, the wire pressing structure is received in the receiving cavity, and the protrusion is formed on one of the side walls of the wiring frame and extends toward the receiving cavity.

3. The anti-misinstallation terminal according to claim 2, characterized in that: The side wall of the wiring frame where the protrusion is provided is defined as a first wiring frame side wall. The wiring frame has a second wiring frame side wall which is provided opposite to the first wiring frame side wall. A positioning hole is provided on the second wiring frame side wall.

4. The anti-misinstallation terminal according to claim 1, characterized in that: The line extending from the swing fulcrum to the swing end of the crimping surface conforms to the Archimedean spiral.

5. The anti-misinstallation terminal according to claim 4, characterized in that: The crimping surface of the wire crimping structure is recessed with a plurality of recesses, and crimping teeth are formed between adjacent recesses.

6. The anti-misinstallation terminal according to claim 1, characterized in that: The wiring frame has at least a first side opening and a second side opening adjacent to the first side opening. The first side opening of the wiring frame is equipped with a wire pressing plate, and the threading space is located between the wire pressing structure and the wire pressing plate; the second side opening serves as a wire insertion port to connect the threading space.

7. The anti-misinstallation terminal according to claim 1 or 6, characterized in that: The wire pressing structure comprises a wire pressing block and a connecting shaft column connected to each other. The connecting shaft column is assembled on the wiring frame so that the wire pressing block swings with the connecting shaft column as a fulcrum. The side of the wire pressing block corresponding to the wire pressing plate is a crimping surface.

8. The anti-misinstallation terminal according to claim 7, characterized in that: The wire pressing block also has an abutment end arranged opposite to the crimping surface. The driving member is a pan head screw, which is screwed on the wiring frame and abuts on the abutment end of the wire pressing block.

9. The anti-misinstallation terminal according to claim 6, characterized in that: The wire pressing plate comprises a wire pressing plate body and a dovetail-shaped connecting portion connected to an opposite side of the wire pressing plate body. A dovetail-shaped mounting opening is provided on an opposite side of the wiring frame, and the connecting portion is fixedly assembled in the dovetail-shaped mounting opening of the wiring frame.

10. An electrical device, characterized in that: At least comprising the anti-misinstallation terminal according to any one of claims 1-9.

Images