CN120749445B

CN120749445B - An input terminal

Info

Publication number: CN120749445B
Application number: CN202511193411.1A
Authority: CN
Inventors: 何明富; 何小芳; 何德卫; 何沂蔓
Original assignee: Sichuan Xinlian Electronic Technology Co ltd
Current assignee: Sichuan Xinlian Electronic Technology Co ltd
Priority date: 2025-08-25
Filing date: 2025-08-25
Publication date: 2025-11-14
Anticipated expiration: 2045-08-25
Also published as: CN120749445A

Abstract

The invention belongs to the technical field of power connection structures, and discloses an input terminal which comprises a shell and at least two groups of guide strips arranged in the shell, wherein the shell comprises an insertion part inserted into a switch or a cabinet socket and an outer end part exposed out of the socket, the guide strips are provided with end parts penetrating out of the insertion part and connected with an internal circuit in a conductive manner, the end parts are exposed, the end parts of each guide strip are different in length, the internal circuit is respectively contacted with the exposed end parts of each guide strip in a conductive manner, the outer end part of the shell is provided with a wire plugging hole corresponding to each group of guide strips, a wire plugging head is arranged in the wire plugging hole, the conductive end part of a wire harness entering the wire plugging hole is pressed with the end part of the guide strip far away from the insertion part through the wire plugging head to form conductive contact, the outer end part of the shell is also provided with an adjusting hole corresponding to each wire plugging hole, and an external tool is inserted into the adjusting hole to be matched with a movable pressing block of the wire plugging head to perform wire pressing operation. The invention has simple structure and convenient disassembly and assembly.

Description

Input terminal

Technical Field

The invention belongs to the technical field of power connection structures, and particularly relates to an input terminal.

Background

The wiring terminal is an electric connecting element, which is used for realizing reliable connection between wires in a circuit or between the wires and electric equipment, and the principle is that the wires are fixed on the terminal in a crimping, welding or bolt fixing mode and the like, so that smooth current passing is ensured.

The wiring terminals are various, and screw wiring terminals, spring wiring terminals, plug-in wiring terminals and the like are common. The screw binding post is suitable for occasions needing firm connection by screwing the screw to fix the lead, the spring binding post ensures connection reliability by utilizing spring force, is convenient and quick to plug and suitable for frequent plugging application, and the plug-in binding post can easily realize connection and disconnection of a circuit and is commonly used in modularized equipment.

The prior wiring terminal connected to the cabinet or the switch is generally in a pluggable structure, can be conveniently detached and installed and replaced, is generally arranged on the end face of the cabinet or the switch facing the outside, is provided with a plurality of jacks, and is mainly used for arranging a plurality of output terminals, but can be provided with a single access terminal, namely, the whole cabinet or the switch is powered. Such access terminals typically access an external power source in the form of a multi-row jack while being electrically conductively connected by rewiring within a cabinet or switch. However, the access terminal is mainly used for accessing an external circuit, and is usually small in plugging times and high in installation and power connection stability. The access terminals with multiple jacks side by side are staggered with the surrounding output terminals due to various wiring, the harness stability of the access terminals is easily affected when the adjacent output terminals are plugged and unplugged, particularly, the circuits with multiple rows of access are not provided with corresponding isolation structures, and meanwhile, when the access terminals are installed with a cabinet or a switch, only exposed metal parts which are equal in length and are arranged side by side are exposed for wiring, and the circuits are easily damaged due to the fault of the connection.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides an integrated input terminal, a guide bar with higher distinction degree is arranged to distinguish lines before the equipment leaves a factory, and meanwhile, a corresponding internal butt joint structure is arranged to form butt joint rapidly, so that the integrated input terminal can replace a wiring mode, and can be conducted by directly adopting a fixed conductive structure to be directly inserted and fixed.

The technical scheme adopted by the invention is as follows:

The invention provides an input terminal, which is inserted on the same end face of a switch or a cabinet with a plurality of output terminals and is connected with an internal circuit to supply power to the plurality of output terminals, and the input terminal comprises a shell and at least two groups of guide bars arranged in the shell, wherein the shell comprises an insertion part inserted into a socket of the switch or the cabinet and an outer end part exposed out of the socket, the guide bars are provided with end parts penetrating out of the insertion part and electrically connected with the internal circuit, the end parts are exposed, the end parts of the guide bars are different in length, and the internal circuit is respectively contacted with the exposed end parts of the guide bars to conduct electricity;

The outer end part of the shell is provided with a wire plugging hole corresponding to each group of guide strips, a wire plug is arranged in the wire plugging hole, and the conductive end part of the wire harness entering the wire plugging hole and the end part of the guide strip far away from the insertion part are pressed by the wire plug to form conductive contact;

The outer end of the shell is also provided with an adjusting hole corresponding to each plug wire hole, and an external tool is inserted into the adjusting hole to be matched with the movable pressing block of the connector lug for wire pressing operation.

It should be noted that, the input terminal in the present invention is an independent plugging and fixing connector, which is used for providing a port to connect the internal circuit of the cabinet or the switch with the external circuit, and the input terminal can be exactly corresponding to the socket of the cabinet or the switch to be snapped and fixed during insertion, the shell part of the fixed input terminal is divided into an outer end part and an insertion part by the socket end surface, the outer end part is used as the part for connecting the external circuit, and the provided plug wire hole is the connection end part. The integrated input terminal has exposed guide strips which are in contact with and conduct electricity with the butt joint structure in the cabinet or the switch after the insertion part is completely inserted into the insertion opening of the cabinet or the switch and is fixed. At least two groups of guide strips are arranged in the whole input terminal, and each group comprises two guide strips, namely an anode and a cathode, or two ends forming a loop, and the guide strips are used for connecting alternating current. The sockets of the cabinet or the switch are all arranged on the same end face, a plurality of output terminals are inserted on the end face and used for loading a plurality of external electric equipment, only one input terminal is arranged at the socket of the end part.

With reference to the first aspect, the present invention provides a first implementation manner of the first aspect, wherein the portions of the guide strips penetrating through the insertion portion are all sheet structures with the same thickness and the same width, a slot for butting each guide strip is arranged in a socket of the cabinet or the switch, and an elastic conductive sheet in abutting contact with the end portion of the guide strip penetrating through the insertion portion is arranged in the slot.

With reference to the first embodiment of the first aspect, the present invention provides a second embodiment of the first aspect, wherein a surface on which the thickness of the guide strip is located is provided with a plurality of positioning clamping grooves along the length direction of the guide strip, an elastic conductive sheet disposed in each slot is provided with an extension portion which is inserted into one side of the guide strip and is sleeved with the guide strip, the extension portion is provided with a protrusion corresponding to the positioning clamping groove, and the protrusion is embedded into the positioning clamping groove to form clamping connection and fixation.

With reference to the second implementation manner of the first aspect, the present invention provides a third implementation manner of the first aspect, where the extension portion of the elastic conductive sheet is a plurality of annular clamping pieces fixed in a channel inside the cabinet or the switch for inserting a corresponding flow guiding strip, and the annular clamping pieces are electrically connected with the elastic conductive sheet through a metal conductor.

With reference to the first embodiment of the first aspect, the present invention provides a fourth embodiment of the first aspect, wherein the insertion portion of the housing has an insulating spacer bar that separates two sets of guide bars, and the length of the insulating spacer bar is greater than the length of the longest guide bar.

With reference to the first embodiment of the first aspect, the present invention provides a fifth embodiment of the first aspect, wherein the insertion portion of the housing has insulating spacers that space two sets of guide strips, the guide strips include four guide strips and are arranged in parallel at equal intervals, the cross section of the insulating spacers at a starting end portion near the root of the insertion portion is cross-shaped, the insulating spacers extend outwards from the four guide strips near the center position in the root of the insertion portion along the guide strips in four plate bodies connected in a cross shape, and at least one plate body stops extending at the end portion where each guide strip stops extending.

With reference to the fifth implementation manner of the first aspect, the present invention provides a sixth implementation manner of the first aspect, wherein a positioning slot corresponding to the insulating isolation strip is provided in a socket of the cabinet or the switch, the positioning slot has a cross-shaped notch for accommodating insertion of the insulating isolation strip, and the insulating isolation strip is inserted into the positioning slot to form a clamping limit.

With reference to the first aspect or the several embodiments of the first aspect, the present invention provides a seventh embodiment of the first aspect, wherein the outer end portion of the housing includes two sets of first wire insertion holes and second wire insertion holes that are arranged in a stepped manner along the insertion direction of the housing, and the first wire insertion holes are close to the insertion portion;

The second wire inserting hole is vertically adjacent to the adjusting hole corresponding to the first wire inserting hole, a movably connected wire pressing device is arranged outside the second wire inserting hole, the wire pressing device is attached to the end face of the second wire inserting hole when the wire harness is inserted/pulled into the second wire inserting hole, and the wire pressing device is provided with two through holes for the wire harness to pass through;

Be equipped with the line ball district on the same terminal surface in second plug wire hole, the pencil inserts the second plug wire hole and when fixed, the line ball ware relative casing displacement is and is buckled the pencil and is pushed away from the line ball district in the regulation hole of first plug wire hole with the pencil under the state that keeps the pencil to pass the line ball ware, the line ball ware has the tip with the casing joint, inserts the pencil in the second plug wire hole when the tip of line ball ware and the casing joint by the line ball ware oppression towards the outside extension of direction perpendicular to second plug wire hole, the pencil forms the buffering portion of buckling that is bound by the line ball ware in the line ball district.

With reference to the seventh implementation manner of the first aspect, the present invention provides an eighth implementation manner of the first aspect, where the wire pressing device is rotatably connected to the housing, and a sliding wire pressing rod slidably connected to the wire pressing device is provided on the wire pressing device, and when the wire pressing device binds the wire harness towards the wire pressing area, the sliding wire pressing rod is pushed to reduce the cross section of the wire harness passing through the through hole of the wire pressing device and bend the wire harness against the wire pressing area.

With reference to the first aspect or several embodiments of the first aspect, the present invention provides a ninth embodiment of the first aspect, where the housing includes a main body, and an upper cover and a lower cover that are mutually buckled on two side end surfaces of the main body, where the two side end surfaces of the main body are respectively provided with a set of mounting grooves for placing the flow guide strips, and the upper cover and the lower cover are buckled to limit the flow guide strips disposed in the mounting grooves;

The end part of each mounting groove at the outer end part is provided with two groups of vertically communicated adjusting holes and wire plugging holes, and the wire connector is arranged at the end part of the mounting groove and is provided with a movable pressing block facing the adjusting holes and a wire plugging port facing the wire plugging holes;

the main body is rotationally connected with a blocking cover at each group of adjusting holes, and the blocking cover rotationally buckles and shields the adjusting holes;

The main body is provided with a safety groove relative to one side end of the plug wire hole, a safety module shell is covered on the safety groove, and fuses connected in series on each group of guide bars are arranged in the safety groove.

The beneficial effects of the invention are as follows:

(1) According to the invention, through the integrated shell structure, the integrated shell structure is divided into the insertion part and the outer end part, and after being clamped with the cabinet or the switch, the integrated shell structure can be directly conducted with an internal circuit inside the cabinet or the switch through the two groups of distributed flow guide strips to form a distinction, so that the disassembly and assembly efficiency and the safety are improved;

(2) According to the invention, the guide strips are arranged into structures with different lengths, and are matched with the structures arranged in the cabinet or the switch, so that the sleeving limiting fixation is realized, the connection stability and the partition degree between different loops are improved, and meanwhile, multiple guarantees can be provided for the conductive connection relationship by optimizing the matching relationship between the elastic conductive sheet and the guide strips;

(3) According to the invention, through the cross-shaped insulating isolation strip structure arranged between the guide strips, each guide strip can be isolated, and under the requirements of limited space and low cost, the adjacent guide strips are prevented from being in contact with each other and short-circuited as much as possible when being inserted or detached, meanwhile, the matching positioning groove can provide better guiding effect and limiting effect for an access terminal with a certain length inserted into a cabinet or a switch, meanwhile, the isolation effect between each guide strip can be increased, and an independent channel is formed for each guide strip, so that the stability of the guide strip is further improved;

(4) According to the invention, the arrangement relation between two groups of wire inserting holes and adjusting holes at the outer end is optimized, the insertion position of the wire harness is avoided in a stepped arrangement mode, meanwhile, the positions of the adjusting holes corresponding to the wire inserting holes can be arranged in a compact structural design as far as possible, and the wire presser structure is used for bending the wire harness led out from the wire inserting holes towards the outside as far as possible in a low-cost mode in the stepped wire inserting hole layout mode, and the wire harness is provided with a bent buffer part, so that the connection stability between the wire harness and the wire inserting holes is further improved, the buffer effect is provided by bending the buffer part when the wire harness is pulled for one time, and the connection state with the wire inserting holes is prevented from being directly influenced;

(5) The invention optimizes the whole structure, and the upper cover, the lower cover and the main body structure are arranged, so that the two groups of four guide bar structures are convenient to install, detach and replace, and the other side of the main body is also provided with a safety module which indicates the states of fuses in the two loops through the indicating lamps arranged inside.

Drawings

FIG. 1 is an isometric view of an embodiment of the present invention in an unpressed state using a first crimp scheme;

FIG. 2 is an isometric view of a first crimp scheme in accordance with an embodiment of the present invention;

FIG. 3 is a plan view of a wire harness in a wire-pressing state using a first wire-pressing scheme in an embodiment of the present invention;

FIG. 4 is an isometric view of an embodiment of the invention in an unpressed state using a second crimp scheme;

FIG. 5 is an isometric view of a second crimp scheme in an embodiment of the present invention;

Fig. 6 is a plan view schematically showing an explosion state of the input terminal in the embodiment of the present invention;

fig. 7 is a first isometric view of an explosion state of an input terminal in an embodiment of the invention;

fig. 8 is a second isometric view of an explosion state of an input terminal in an example embodiment of the invention.

In the figure, the device comprises a 1-main body, a 2-upper cover, a 3-lower cover, a 4-insurance module shell, a 5-state indicator lamp, a 6-regulation hole, a 7-first wire insertion hole, an 8-second wire insertion hole, a 9-wire pressing device, a 10-guide strip, a 11-blocking cover, a 12-wire pressing area, a 13-clamping fixing block, a 14-sliding wire pressing rod, a 15-wire connector, a 16-insulation isolation strip, a 17-wire harness and an 18-fuse.

Detailed Description

The invention is further illustrated by the following description of specific embodiments in conjunction with the accompanying drawings.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, indirectly connected through an intermediate medium, or in communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The embodiment discloses an input terminal, specifically, a circuit that is arranged on a cabinet or a switch that performs line management on multiple sockets, and the connected circuit includes a power supply circuit and a signal circuit, where the input terminal in the embodiment mainly has two groups of lines, that is, two loops that are connected by four interfaces, and specifically, the following steps are provided:

The input terminal comprises a shell structure, four guide strips 10 are arranged in the shell, the guide strips 10 in the embodiment are metal sheets, the parameters of length, width and height are sequentially decreased, the length is more than ten times of the width, and the width is more than five times of the thickness. The inside of the jack of the cabinet or the exchanger is provided with a corresponding flow guiding strip 10

The housing is divided into an insertion portion and an outer end portion with a socket end face inserted into the exchange or the cabinet, wherein the insertion portion is smaller in size than the outer end portion, and has an annular end face at the outer end portion connecting the insertion portion, which can be abutted against a surface of a socket edge right when the access terminal is inserted into a corresponding socket. And the surface of the outer end part is also provided with an elastically deformable clamping fixing block 13, when the access terminal is inserted into the socket, the clamping fixing block 13 is positioned in the socket and is in butt joint with a clamping groove arranged on the inner end surface of the socket to form limit, so that the whole shell is in detachable limit connection with the switch or the cabinet through the clamping fixing block 13.

The guide strips 10 have ends penetrating through the insertion portions and electrically connected with the internal circuit, the ends are exposed, the lengths of the ends of the guide strips 10 are different, and the internal circuit is respectively in contact with the exposed ends of the guide strips 10 for conducting electricity.

Referring to fig. 1-5, there is shown an external construction of a modular input terminal, in which it can be seen that two sets of wire insertion holes are provided on the outer end, and for each set of wire insertion holes there is provided an adjustment hole 6 at a vertically adjacent face, and in which there is provided a lug 15, the lug 15 being of rectangular metal construction, in electrically conductive connection with the deflector strip 10. The connector lug 15 is provided with a movable pressing block, in this embodiment a screw structure, in threaded fit with the connector lug 15, and the rotating movable pressing block can press and abut against a conductor inserted into the connector lug 15, or pull the connector lug 15 to serve as two mutually sliding connector parts of the connector lug 15 to perform relative displacement, so that the gap between the connector lug and the connector lug is reduced, and the conductor inserted into the gap is clamped to achieve fixation.

For the structure of the guide strip 10, the present embodiment is optimized and limited, and referring to the explosion structure shown in fig. 7 and 8, it can be seen that the portions of the guide strip 10 penetrating out of the insertion portion are all sheet structures with the same thickness and the same width, one portion is fixed in the housing and electrically connected with the corresponding connector lug 15, and the other portion penetrates out of the housing and enters the cabinet or the interior of the switch to be connected with the internal circuit. In order to distinguish, the lengths of each guide strip 10 are different, and the end parts of the guide strips 10 are also provided with openings and numbers, the openings facilitate winding connection, the numbers are used for distinguishing corresponding wire insertion holes, and the method can be applied to internal wiring connection.

The guide strips 10 in this embodiment are directly in contact with and electrically connected with the conductive structures in the cabinet or the switch, that is, the cabinet or the switch has a connection structure corresponding to each guide strip 10, that is, a slot for butting each guide strip 10, and elastic conductive sheets are disposed in the slot and are in abutting contact with the end of the guide strip 10 penetrating out of the insertion part. Wherein, on the surface of the thickness direction of the guide bar 10, a plurality of positioning clamping grooves are arranged along the length direction of the guide bar 10, an elastic conducting strip arranged in each slot is provided with an extension part which is inserted into one side of the guide bar 10 and sleeves the guide bar 10, a bulge corresponding to the positioning clamping groove is arranged in the extension part, and the bulge is embedded into the positioning clamping groove to form clamping connection and fixation.

Referring to fig. 1, it can be seen that a plurality of positioning slots are provided on the upper and lower narrow and longer surfaces of each guide strip 10 in a vertically staggered manner, for matching with the protruding structure of the extension portion, that is, the effect of clamping and limiting can be achieved, and meanwhile, the sense of inserting paragraphs is provided, and the depth of insertion is determined when the installation is convenient.

Further, the extending portion of the elastic conductive sheet is a plurality of annular clamping pieces fixed in the cabinet or the exchanger for inserting the corresponding guide strips 10, and the annular clamping pieces are electrically connected with the elastic conductive sheet through metal conductors.

Further, in order to improve the separation degree between the four guide strips 10, a special structure for separating is provided in the housing, and referring to fig. 1-5, the insertion portion of the housing has an insulating spacer 16 for separating the two sets of guide strips 10, and the length of the insulating spacer 16 is greater than the length of the longest guide strip 10.

The insertion portion of the housing has insulating spacers 16 for spacing two sets of guide strips 10, the guide strips 10 include four guide strips and are arranged in parallel at equal intervals, the cross section of the initial end portion of each insulating spacer 16 near the root of the insertion portion is cross-shaped, the insulating spacers 16 extend outwards from the central position of the four guide strips 10 near the root of the insertion portion along the guide strips 10 in a cross-shaped connection of four strip plates, and at least one strip plate stops extending at the end portion of each guide strip 10, where the extension stops.

Referring to fig. 8, it can be seen that the end of the final insulating spacer 16 is L-shaped, with two strips of reduced length corresponding to two strips of shorter length 10. The length of the insulating isolation strip 16 is smaller than that of the longest guide strip 10, the two final strips extend to the end of the second long guide strip 10 to stop extending, and at this time, the longest guide strip 10 and the second long guide strip 10 are completely separated, so that the longer insulating isolation strip 16 is not required to be arranged for isolation.

Meanwhile, in order to achieve better positioning and guiding effects, a positioning groove corresponding to the insulating isolation strip 16 is formed in a socket of the cabinet or the switch, the positioning groove is provided with a cross-shaped notch for accommodating insertion of the insulating isolation strip 16, and the insulating isolation strip 16 is inserted into the positioning groove to form clamping limiting.

Further, referring to fig. 1-8, the embodiment adopts a split type input terminal structure, wherein the housing includes a main body 1, and an upper cover 2 and a lower cover 3 that are mutually buckled on two side end surfaces of the main body 1, two side end surfaces of the main body 1 are respectively provided with a group of mounting grooves for placing the guide strips 10, and the guide strips 10 arranged in the mounting grooves are limited by buckling the upper cover 2 and the lower cover 3.

The end of each mounting groove at the outer end is provided with two groups of vertically communicated adjusting holes 6 and wire inserting holes, and the wire connecting lug 15 is arranged at the end of the mounting groove and is provided with a movable pressing block facing the adjusting holes 6 and a wire connecting port facing the wire inserting holes.

The main body 1 is rotatably connected with a blocking cover 11 at each group of adjusting holes 6, the blocking cover 11 is used for rotationally buckling and shielding the adjusting holes 6, a safety groove is formed in one side end of the main body 1 corresponding to the plug wire hole, a safety module shell 4 is covered on the safety groove, and a fuse 18 connected in series on each group of guide strips 10 is arranged in the safety groove. Meanwhile, a status indicator lamp 5 is further arranged in the safety groove, an opening for exposing the status indicator lamp 5 is formed in the safety module shell 4, the state of the fuse 18 corresponding to the status indicator lamp 5 is conveniently checked from the outside, the red light flashes to indicate that one fuse 18 is fused, and the red light always lights to indicate that two fuses 18 are fused and need to be replaced.

Referring to fig. 8, the fuse 18 disposed in the fuse slot is in a clamping and fixing manner, which is not shown in the drawing, and two sets of contacts are disposed in the fuse slot, and are respectively connected to the two fuses 18, so that the fuses 18 are strung into a corresponding loop.

It should be noted that, referring to fig. 1, the outer end face of the input terminal in the present embodiment is directed to the end face of the wiring of the plurality of output terminals beside, and the wiring harness 17 of the output terminal is generally directed to be perpendicular to the direction of the wire insertion hole of the access terminal in the present embodiment. However, since this connection terminal is different from the output terminal, a higher connection stability is required, and a bolt-type wire pressing connection mode is adopted, namely, the provided adjusting hole 6 faces the outside, and the side wire is led in, which is different from the output terminal that the operation end and the wire inlet end are positioned at the same end face. However, due to the two line access, a special interface arrangement is adopted, which is as follows:

The outer end of the shell comprises two groups of first plug wire holes 7 and second plug wire holes 8 which are arranged in a step-shaped manner along the insertion direction of the shell, the first plug wire holes 7 are close to the insertion part, the second plug wire holes 8 are vertically adjacent to the adjusting holes 6 corresponding to the first plug wire holes 7, movably connected wire pressing devices 9 are arranged outside the second plug wire holes 8, the wire pressing devices 9 are attached to the end faces of the second plug wire holes 8 when the wire harnesses 17 are plugged into/pulled out of the second plug wire holes 8, and the wire pressing devices are provided with two through holes for the wire harnesses 17 to pass through.

Be equipped with the line ball district 12 on the same terminal surface in second plug wire hole 8, pencil 17 inserts second plug wire hole 8 and when fixed, line ball ware 9 relative casing displacement and with the line ball district 12 of pencil 17 buckling and pushing away from the regulation hole 6 of first plug wire hole 7 under the state that keeps pencil 17 to pass line ball ware 9, line ball ware 9 have with the tip of casing joint, the pencil 17 of inserting in the second plug wire hole 8 when the tip of line ball ware 9 and the casing joint is pressed towards the outside extension of direction perpendicular to second plug wire hole 8 by line ball ware 9, and pencil 17 forms the kink buffer portion of being bound by line ball ware 9 in line ball district 12.

As an embodiment, referring to fig. 4 and 5, the wire pressing device 9 is a simple sliding connection manner, wherein a sliding groove is arranged at the corresponding position of the upper cover 2 and the lower cover 3, a sliding block inserted into the corresponding sliding groove for sliding connection is respectively arranged on the upper edge and the lower edge of the wire pressing device 9, and the sliding block also has a rotating shaft, so that the wire pressing device 9 with the sliding block can rotate around the rotating shaft to a certain extent.

As can be seen in fig. 4, when the blocking cover 11 of the adjusting hole 6 corresponding to the second wire insertion hole 8 is opened, the wire presser 9 is attached to the surface of the second wire insertion hole 8, and at this time, the wire harness 17 is inserted into the second wire insertion hole 8, and the wire harness 17 passes through both through holes of the wire presser 9.

Then, after the conductive part of the inserted wire harness 17 is inserted into the adjusting hole 6 through the inner hexagonal tool to be extruded and fixed, the blocking cover 11 is covered, the wire pressing device 9 is pulled, first, a certain angle rotation is carried out, the arc-shaped part on the left side of the wire pressing device shown in the drawing is outwards rotated, then the wire pressing device 9 is slid towards the wire pressing area 12, finally, after the wire pressing device is moved to the state in fig. 5, the movable end part of the wire pressing device 9 is clamped and fixed through a clamping structure which is not shown in the drawing. Because whole line ball ware 9 removes to line ball district 12, the pencil 17 that passes in the line ball ware 9 through-hole this moment can be pulled by arc part and drag to line ball district 12 one side to play the effect of leading wire harness 17 to be positive complete and drive, not only can dodge the region of the regulation hole 6 of first plug wire hole 7, also buckle wire harness 17 to the front simultaneously, form a kink, because line ball ware 9 supports its part on line ball district 12, pulls wire harness 17 from the outside this moment and also can receive line ball ware 9's restriction effect earlier, improves its connection stability.

As an embodiment, referring to fig. 1-3, the wire pressing device 9 is rotatably connected with the housing, a sliding wire pressing rod 14 slidably connected with the wire pressing device 9 is provided on the wire pressing device 9, when the wire pressing device 9 binds the wire harness 17 towards the wire pressing region 12, the sliding wire pressing rod 14 is pushed to reduce the cross section of the wire harness 17 passing through the through hole of the wire pressing device 9 and bend the wire harness 17 against the wire pressing region 12. Not shown in the figures, a locking structure for locking the wire pressing device 9 is provided at the rotation of the blocking cover 11 corresponding to the second wire insertion hole 8, which locking structure can release the connected wire pressing device 9 from one side against pressing. That is, only when the cover 11 is covered, the wire pressing device 9 can be turned over to clamp the wire harness 17 to the wire pressing area 12, and at this time, the sliding wire pressing rod 14 is moved again to clamp the wire harness 17, so that the end part of the wire pressing device 9 can be fixedly connected with the clamping structure. And in case when the wire harness 17 of the first wire inserting hole 7 needs to be operated, when the blocking cover 11 corresponding to the first wire inserting hole 7 is opened, the wire harness 17 of the second wire inserting hole 8 does not influence the operation of the blocking cover 11 and the adjusting hole 6 corresponding to the first wire inserting hole 7, and the wire pressing device 9 can completely restrict the wire harness 17 in the wire pressing area 12. And in case need handle the pencil 17 in the second plug wire hole 8, only need rotate the fender lid 11 that corresponds second plug wire hole 8, fender lid 11 can contact joint structure this moment to trigger joint structure release line ball ware 9 when opening the consecutive action of fender lid 11, line ball ware 9 is owing to the torsional spring that sets up or the elasticity potential energy effect of pencil 17 self under the automatic re-setting and release pencil 17 after releasing, can rotate the activity briquetting in the regulation hole 6 at this moment and release the pencil 17 that inserts in the second plug wire hole 8.

Further, to above-mentioned two embodiments, can also link the line ball ware 9 with keep off lid 11, namely through modes such as connecting rod, stay cord, linkage line ball ware 9 forms transmission relation with the fender lid 11 that corresponds second plug wire hole 8, when keeping off lid 11 and open, line ball ware 9 keeps laminating on the terminal surface of second plug wire hole 8, do not influence the pencil 17 of inserting second plug wire hole 8 and pass, when rotating fender lid 11, drive line ball ware 9 upset together, thereby buckle the constraint with pencil 17, only need be equipped with the joint limit structure to keep off lid 11 in regulation hole 6 department and can fix fender lid 11 and make its linkage line ball ware 9 restrict pencil 17 all the time.

The invention is not limited to the alternative embodiments described above, but any person may derive other various forms of products in the light of the present invention. The above detailed description should not be construed as limiting the scope of the invention, which is defined in the claims and the description may be used to interpret the claims.

Claims

1. The input terminal is inserted on the same end face of a switch or a cabinet with a plurality of output terminals and is connected with an internal circuit to supply power to the plurality of output terminals, and is characterized by comprising a shell and at least two groups of guide strips (10) arranged in the shell, wherein the shell comprises an insertion part inserted into a socket of the switch or the cabinet and an outer end part exposed out of the socket, the guide strips (10) are provided with end parts penetrating out of the insertion part and electrically connected with the internal circuit, the end parts are exposed, the end parts of the guide strips (10) are different in length, and the internal circuit is respectively contacted with the exposed end parts of the guide strips (10) to conduct electricity;

the outer end part of the shell is provided with a wire plugging hole corresponding to each group of guide strips (10), a wire plug (15) is arranged in the wire plugging hole, and the conductive end part of a wire harness (17) entering the wire plugging hole and the end part of the guide strips (10) far away from the insertion part are pressed to form conductive contact through the wire plug (15);

The outer end part of the shell is also provided with an adjusting hole (6) corresponding to each plug wire hole, and an external tool is inserted into the adjusting hole (6) to be matched with a movable pressing block of the connector lug (15) for wire pressing operation;

The outer end part of the shell comprises two groups of first plug wire holes (7) and second plug wire holes (8) which are arranged in a step-shaped manner along the insertion direction of the shell, and the first plug wire holes (7) are close to the insertion part;

The second wire inserting hole (8) is vertically adjacent to the adjusting hole (6) corresponding to the first wire inserting hole (7), a movably connected wire pressing device (9) is arranged outside the second wire inserting hole (8), the wire pressing device (9) is attached to the end face of the second wire inserting hole (8) when the wire harness (17) is inserted into/pulled out of the second wire inserting hole (8), and the wire inserting hole is provided with two through holes for the wire harness (17) to pass through;

The wire pressing device comprises a wire pressing device (9), a wire pressing area (12) is arranged on the same end face of a second wire inserting hole (8), when a wire harness (17) is inserted into the second wire inserting hole (8) and fixed, the wire pressing device (9) is displaced relative to a shell, the wire harness (17) is bent and pushed to the wire pressing area (12) far away from an adjusting hole (6) of a first wire inserting hole (7) in a state that the wire harness (17) passes through the wire pressing device (9), the wire pressing device (9) is provided with an end part clamped with the shell, the wire harness (17) inserted into the second wire inserting hole (8) when the end part of the wire pressing device (9) is clamped with the shell is pressed by the wire pressing device (9) to extend outwards towards a direction perpendicular to the second wire inserting hole (8), and a bending buffer part bound by the wire pressing device (9) is formed in the wire pressing area (12);

the wire pressing device (9) is rotationally connected with the shell, a sliding wire pressing rod (14) which is in sliding connection with the wire pressing device (9) is arranged on the wire pressing device (9), when the wire pressing device (9) binds a wire harness (17) towards the wire pressing area (12), the sliding wire pressing rod (14) is pushed to reduce the cross section of the wire harness (17) penetrating through a through hole of the wire pressing device (9) and bend the wire harness (17) to lean against the wire pressing area (12);

a clamping structure for clamping and fixing the wire pressing device (9) is arranged at the rotating position of the blocking cover (11) corresponding to the second wire inserting hole (8), and the clamping structure is pressed against one side to release the connected wire pressing device (9);

When the baffle cover (11) is covered, the wire pressing device (9) can turn over to buckle the wire harness (17) to the wire pressing area (12), and then the sliding wire pressing rod (14) is moved to bind the wire harness (17), and the end part of the wire pressing device (9) is fixedly connected with the clamping structure;

The wire pressing device (9) and the blocking cover (11) corresponding to the second wire inserting hole (8) form a transmission relation through the connecting rod and the pull rope, when the blocking cover (11) is opened, the wire pressing device (9) is kept attached to the end face of the second wire inserting hole (8), the wire harness (17) inserted into the second wire inserting hole (8) is not affected to pass through, and when the blocking cover (11) is rotated, the wire pressing device (9) is driven to turn over together, so that the wire harness (17) is bent and restrained.

2. The input terminal as set forth in claim 1, wherein the parts of the guide strips (10) penetrating out of the insertion parts are all of sheet structures with the same thickness and the same width, a slot for butting each guide strip (10) is arranged in a socket of the cabinet or the switch, and elastic conductive sheets in abutting contact with the end parts of the guide strips (10) penetrating out of the insertion parts are arranged in the slot.

3. The input terminal as set forth in claim 2, wherein the surface of the guide strip (10) has a plurality of positioning slots along the length direction of the guide strip (10), the elastic conductive sheet disposed in each slot has an extension portion inserted into one side of the guide strip (10) and covering the guide strip (10), the extension portion has a protrusion corresponding to the positioning slot, and the protrusion is embedded into the positioning slot to form a clamping connection.

4. An input terminal according to claim 3, wherein the extension parts of the elastic conductive sheet are a plurality of annular clamping pieces fixed in channels of the cabinet or the exchanger for inserting the corresponding guide strips (10), and the annular clamping pieces are electrically connected with the elastic conductive sheet through metal conductors.

5. An input terminal as set forth in claim 2, characterized in that the insertion portion of the housing has insulating spacer bars (16) spacing two sets of guide bars (10), the length of the insulating spacer bars (16) being greater than the length of the longest guide bar (10).

6. An input terminal according to claim 2, characterized in that the insertion portion of the housing has insulating spacers (16) spacing two sets of guide strips (10), the guide strips (10) comprising four strips arranged in parallel at equal intervals, the insulating spacers (16) being cross-shaped in cross-section at a starting end portion near the root of the insertion portion, the insulating spacers (16) extending outwardly from the four guide strips (10) near a central position in the root of the insertion portion along the guide strips (10) in four strips connected in a cross, at least one strip stopping extending at an end portion at which each guide strip (10) stops extending.

7. An input terminal as in claim 6, wherein a positioning slot corresponding to the insulating spacer (16) is provided in a socket of a cabinet or a switch, the positioning slot has a cross-shaped notch for receiving the insulating spacer (16) to insert, and the insulating spacer (16) is inserted into the positioning slot to form a snap-fit limit.

8. The input terminal according to any one of claims 1 to 7, wherein the housing comprises a main body (1) and an upper cover (2) and a lower cover (3) which are mutually buckled on two side end surfaces of the main body (1), the two side end surfaces of the main body (1) are respectively provided with a group of mounting grooves for placing the guide strips (10), and the guide strips (10) arranged in the mounting grooves are limited by buckling the upper cover (2) and the lower cover (3);

The end part of each mounting groove at the outer end part is provided with two groups of vertically communicated adjusting holes (6) and wire inserting holes, and the wire connecting heads (15) are arranged at the end parts of the mounting grooves and are provided with movable pressing blocks facing the adjusting holes (6) and wire connecting ports facing the wire inserting holes;

The main body (1) is rotationally connected with a blocking cover (11) at each group of adjusting holes (6), and the blocking cover (11) rotationally buckles and shields the adjusting holes (6);

the main body (1) is provided with a safety groove relative to one side end of the plug wire hole, a safety module shell (4) is covered on the safety groove, and a fuse (18) connected in series on each group of guide strips (10) is arranged in the safety groove.