CN106505362B

CN106505362B - Wiring terminal

Info

Publication number: CN106505362B
Application number: CN201610978996.2A
Authority: CN
Inventors: 宣圣贵; 胡晓慧; 崔斌; 熊克勇; 杨守武; 张成成
Original assignee: Gree Electric Appliances Inc of Zhuhai; Gree Hefei Electric Appliances Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Gree Hefei Electric Appliances Co Ltd
Priority date: 2016-11-07
Filing date: 2016-11-07
Publication date: 2020-04-14
Anticipated expiration: 2036-11-07
Also published as: CN106505362A

Abstract

The invention provides a wiring terminal which comprises a shell (1) and a pointer, wherein a slot (2) for accommodating the pointer is formed in the shell (1), a window (3) for observation and/or maintenance is further arranged on the shell (1) at a position corresponding to the slot (2), and an anti-static structure (4) for sealing the window (3) to prevent electricity from escaping at the window is further arranged on the shell (1) at a position corresponding to the window (3). The invention can effectively isolate the terminal from the outside at the windowing position, prevent outside static from entering the terminal through the windowing position, thereby preventing the terminal and electronic components connected with the terminal from being damaged by the static, effectively reducing the static hidden trouble of the wiring terminal and improving the operation stability and reliability of the wiring terminal.

Description

Wiring terminal

Technical Field

The invention belongs to the technical field of electric appliances, and particularly relates to a wiring terminal.

Background

Wire harness terminals commonly used in the prior industry are all in a form that metal pointers are exposed, so that the wire harness terminals are convenient to insert and disassemble, but in the using process of customers, when a human body has static electricity or other high-voltage objects are contacted with the terminals, the phenomenon of static discharge is easy to occur, and static damage is caused to components on the board by conducting the static electricity to the other end of the terminals (often connected to a controller circuit board), in order to solve the problem, anti-static adhesive paper is usually pasted on the terminals or an electrostatic finger sleeve is sleeved on the terminals for solving the problem, but the inserting and matching of the wiring terminals and other electrical components are influenced, and the normal working operation is influenced; and binding post usually can be provided with the structure of windowing that is used for observing and inside pointer of inspection and maintenance slot and slot, but because the existence of structure of windowing often can cause external static ion can enter into the terminal inside through windowing to cause the terminal and the electronic components who links to each other with the terminal to be damaged by static.

Because the wiring terminal in the prior art has the technical problems of electrostatic potential hazards and electrostatic damage caused by the window structure and the exposed pointer, or normal insertion and matching of the wiring terminal can be influenced, the invention researches and designs the wiring terminal.

Disclosure of Invention

Therefore, the invention aims to overcome the defect that the wiring terminal in the prior art has electrostatic potential hazards, and provides the wiring terminal.

The invention provides a wiring terminal which comprises a shell and a pointer, wherein the shell is provided with a slot for accommodating the pointer, a windowing hole for observation and/or maintenance is further arranged on the shell at a position corresponding to the slot, and an anti-static structure for sealing the windowing hole to prevent electricity from channeling at the windowing position is further arranged on the shell at the windowing position.

Preferably, the anti-static structure is an insulating anti-static sheet and is integrally injection-molded with the housing.

Preferably, the thickness of the insulating antistatic sheet is 0.1-0.5 mm.

Preferably, the housing includes a first side surface and a second side surface opposite to each other, the slot is disposed at a position close to the first side surface, the window is disposed on the second side surface, and an extending direction of the window is the same as an extending direction of the slot.

Preferably, at least one sealing groove which is close to the second side surface and has the same extension direction as the slot is further disposed on the terminal end surface where the upper end of the slot is located.

Preferably, a positioning groove and/or an ink jet line for positioning the windowing process are/is further arranged on the second side surface along the peripheral position of the windowing.

Preferably, the second side surface is provided with at least one positioning groove recessed towards the first side surface, and the positioning groove extends along the same extending direction as the slot.

Preferably, the depth of the positioning groove is 0.1-0.2 mm.

Preferably, the number of the pointers is multiple, the number of the slots is multiple, the slots correspond to the pointers one to one, the number of the windows is multiple, the windows correspond to the slots one to one, and each window is provided with one anti-static structure;

the plurality of pointers are arranged in a row at intervals, the plurality of slots are also arranged in a row at intervals, and the plurality of windows are also arranged in a row at intervals.

Preferably, when the terminal comprises a plurality of sealing grooves, the sealing grooves are arranged in a row at intervals on the terminal end face, the row being the same as the arrangement direction of the plurality of slots;

and/or when the positioning groove and/or the ink jet printing line are included, the positioning groove or the ink jet printing line is multiple, and one positioning groove and/or one ink jet printing line is arranged at the peripheral position of each window;

and/or, when including the constant head tank, the constant head tank is a plurality of, and adjacent all set up one between the windowing the constant head tank.

Preferably, the pointer is arranged to be fully received in the slot corresponding thereto.

Preferably, the free end of the pointer is spaced from the end surface of the slot by a predetermined distance or is flush with the end surface.

Preferably, the housing is an insulating plastic housing, and the pointer is a metal pointer.

The connecting terminal provided by the invention has the following beneficial effects:

1. according to the wiring terminal, the anti-static structure for sealing the window to prevent electricity from escaping at the window is further arranged at the position, located on the shell, of the window, so that the terminal can be effectively isolated from the outside at the window opening position, and the outside static electricity is prevented from escaping into the terminal through the window opening position, so that the terminal and electronic components connected with the terminal are damaged by static electricity, the static hidden danger of the wiring terminal is effectively reduced, and the operation stability and reliability of the wiring terminal are improved;

2. according to the wiring terminal, the anti-static structure and the shell are integrally injection molded, so that the processing and assembling process can be reduced, the sealing performance and the sealing effect of the anti-static structure are improved, when the interior of the terminal needs to be detected, observed or maintained by using the windowing, the operation can be carried out by only cutting the anti-static sheet, and the wiring terminal is simple and convenient;

3. according to the wiring terminal, the terminal end face where the upper end of the slot is located is also provided with the at least one sealing groove which is close to the second side face and is the same as the extension direction of the slot, and materials in the terminal, which belong to the sealing groove, can be extruded to the position of the window opening through the opening of the sealing groove, so that the filling effect of a cavity at the position of the window opening is effectively completed, the further sealing and closing effects of the window opening are achieved, the effect of preventing static electricity is further achieved, the static hidden danger of the wiring terminal is reduced, and the operation stability and reliability of the wiring terminal are improved;

4. according to the wiring terminal, the positioning groove and/or the ink jet line for positioning the windowing processing are/is further arranged on the second side face along the peripheral position of the windowing, so that the position of the windowing can be positioned and marked, the windowing at a proper position can be accurately and accurately processed when the processing windowing is formed, and the purposes and effects of observation and maintenance are met;

5. according to the wiring terminal, the outer wall of the anti-static structure (namely the side wall surface far away from the shell) is arranged to be concave towards the direction of the second side surface to form the positioning groove, so that the two terminals can be oppositely positioned when being mutually butted through the positioning groove, the two terminals are assembled at correct positions, and misassembly or reverse assembly is prevented;

6. according to the wiring terminal, the pointer is completely accommodated in the corresponding slot, and the pointer can be completely accommodated in the slot, so that the situation that the pointer is exposed outside the terminal and is unnecessarily contacted with other objects to cause electrostatic damage and electrostatic hidden danger is effectively avoided, and the reliability and safety of normal working operation of the wiring terminal are improved.

Drawings

Fig. 1 is a schematic perspective view of a terminal of the present invention;

FIG. 2 is a schematic front view of the structure of FIG. 1;

fig. 3 is a schematic top view of the structure of fig. 1.

The reference numbers in the figures denote:

1-shell, 2-slot, 3-windowing, 4-antistatic structure, 5-first side, 6-second side, 7-seal groove, 8-constant head tank.

Detailed Description

As shown in fig. 1 to 3, the present invention provides a connection terminal, which includes a housing 1 and a pointer (preferably a metal pointer), wherein the housing 1 is provided with a slot 2 for accommodating the pointer, a window 3 for observing and/or repairing the slot 3 and/or the pointer 2 is further provided at a position corresponding to the slot 2 on the housing 1, and an anti-static structure 4 for sealing the window 3 to prevent electricity from escaping at the window is further provided at a position on the housing 1 at the window 3.

Through being located on the shell the position of windowing is provided with and is used for sealed windowing in order to prevent that the position of windowing from scurrying the static-proof structure of electricity, can carry out terminal and external isolated to the position of windowing effectively, thereby prevent that external static from scurrying into the terminal through the position of windowing inside, thereby lead to terminal and the electronic components who links to each other with the terminal to be damaged by static, reduce binding post's static hidden danger effectively, improve binding post's operating stability and reliability.

Preferably, the anti-static structure 4 is an insulating anti-static sheet, and is formed by injection molding with the housing 1 to block the window. The anti-static structure is selected as the insulating anti-static sheet, so that the insulating effect can be effectively achieved, the anti-static capacity of the anti-static sheet is improved, and the hidden danger of static damage to the terminal is effectively reduced; simultaneously will prevent static structure and the integrative injection moulding of shell, can reduce processing assembly process, and improve the sealing performance and the sealed effect of preventing static structure, when needing to utilize windowing to detect, observe or maintain terminal inside, only need to cut open antistatic sheet and can carry out foretell operation, simple and convenient.

Preferably, the thickness of the insulating antistatic sheet is 0.1-0.5 mm. Experimental studies show that the thickness of the insulating antistatic sheet is set and processed to the above thickness range, so that the insulating antistatic sheet can effectively play a role of insulation and static electricity prevention, and the production and processing costs can be reduced (too large thickness is not needed).

Preferably, the housing 1 includes a first side surface 5 and a second side surface 6 opposite to each other, the slot 2 is disposed at a position close to the first side surface 5, the window 3 is disposed on the second side surface 6, the window is opposite to the corresponding slot, and the extending direction of the window 3 is the same as the extending direction of the slot 2. The terminal is arranged at the optimal arrangement position and in the optimal arrangement form of the terminal in the terminal with the window, and the structure of the slot and the pointer can be observed, detected and maintained without influencing the structural strength of the slot and the pointer and the normal work of the pointer by arranging the terminal at the other side surface far away from the slot; the same extending direction of the window and the slot is set for better observing, detecting and maintaining the structures of the slot and the pointer.

Preferably, at least one sealing groove 7 (each sealing groove is opposite to each opening in the direction from the first side surface to the second side surface) is further provided on the terminal end surface of the upper end (the starting end of the downward extension of the opening in the view of the figure) of the slot 2, the sealing groove being close to the second side surface 6 and extending in the same direction as the slot 2. Through still being provided with on the terminal surface and being close to the second side, and with the same at least one seal groove of extending direction of slot, can make the material that belongs to this seal groove position in the terminal extruded to the position department of windowing through seting up of seal groove to accomplish the filling effect to windowing position hole effectively, thereby played the further sealed, confined effect of windowing, further realized preventing the effect of static, reduced binding post's static hidden danger, improved binding post's operating stability and reliability.

Preferably, a positioning groove (not shown in detail) and/or an ink jet line (a dashed-line frame at the edge of the window when viewed from the figure) for positioning the processing of the window 3 are further provided on the second side surface 6 along the peripheral position of the window 3. Through the structural style of arranging the positioning groove and/or the ink jet printing line at the position, the position of the open window can be positioned and marked, so that the open window at a proper position can be accurately and accurately processed when the open window is processed, and the purposes and effects of observation and maintenance are met.

Preferably, at least one positioning groove 8 recessed toward the first side surface 5 is further provided on the second side surface 6, and the positioning groove 8 extends along the same extending direction as the slot 3. Through set up above-mentioned sunken constant head tank on the second side, can make two terminals realize the effect of relative location when butt joint each other through the constant head tank for the assembly of correct position is accomplished to the two, prevents misloading or anti-dress.

Preferably, the depth of the positioning slot 8 (i.e. the maximum distance from the second side to recess towards the first side) is 0.1-0.2 mm. The optimal depth value range of the positioning groove formed in the anti-static structure of the wiring terminal is provided, and the positioning and assembling effects can be effectively achieved. It is further preferable that the sectional shape of the positioning groove 8 on the terminal upper end surface is a "V" shaped groove structure, i.e. a "V" shaped bottom end (as shown in fig. 3) in which the middle portion is recessed to the deepest depth toward the first side surface and both ends extend gradually from the second side surface to the middle portion in a slope manner.

The connecting terminal is provided with a plurality of slots, pointers, windowing structures and antistatic structures, and the slots, the pointers, the windowing structures and the antistatic structures are arranged in a uniform and corresponding mode, so that the multi-hole splicing matching of the connecting terminal can be realized, each slot can be correspondingly observed and maintained, and each windowing structure can play a role in preventing static electricity; and the structures are all arranged in a row at intervals, are arranged according to the insertion structure of the porous pointer and can be adapted to the insertion structure of the porous pointer.

Preferably, when the sealing groove 7 is included, the sealing grooves 7 are multiple, and are arranged on the terminal end surface in a row at intervals, the row being the same as the arrangement direction of the slots 2;

and/or, when the positioning groove and/or the ink jet printing line are included, the number of the positioning grooves or the ink jet printing lines is multiple, and one positioning groove and/or one ink jet printing line is arranged at the peripheral position of each windowing 3;

and/or, when the positioning groove 8 is included, the positioning groove 8 is multiple, and one positioning groove 8 is arranged between every two adjacent windows 3.

When the wiring terminal is provided with a plurality of slots, pointers and windows, the optimal number and the optimal arrangement form of the corresponding sealing grooves, the positioning grooves and/or the ink spraying leads and the positioning grooves are uniformly arranged in the arrangement mode which is the same as the number of the windows and is consistent with the arrangement mode, so that the functions and purposes of sealing, preventing static electricity, positioning the windows and positioning the adjacent terminals can be achieved for each window.

Preferably, said pointer 2 is arranged to be completely housed in said slot 3 corresponding thereto. The pointer is completely accommodated in the corresponding slot, and the pointer can be completely accommodated in the slot, so that the situation that the pointer is exposed outside the terminal and is unnecessarily contacted with other objects to cause electrostatic damage and electrostatic hidden danger is effectively avoided, and the reliability and the safety of normal working operation of the wiring terminal are improved.

Preferably, the free end of the pointer 2 is spaced a predetermined distance from or flush with the end surface of the slot 3. The pointer of the wiring terminal is completely accommodated in the slot and matched with the slot in a specific arrangement form and a structural form, and the purpose and the effect of completely accommodating the pointer to prevent electrostatic damage can be achieved.

Preferably, the housing 1 is an insulating plastic housing, and the pointer 2 is a metal pointer. The shell and the pointer are preferably made of materials, the pointer is selected to be a metal pointer which can play a good role in electric conduction and electric transmission, and the shell is selected to be an insulating plastic shell which can play a role in insulating from the surrounding environment, people, objects and the like, so that electric leakage is prevented.

The working principle and preferred embodiments of the present invention are described below

The invention seals the windowing part of the terminal when the terminal is injection molded after practical verification, and simultaneously controls the sealed thickness (namely the anti-static structure 5) to be 0.5 mm.

The effect is as follows: through verification on actual products, under the same production conditions (including operators and production lines), the new structure has no semiconductor device failure within 2 months, and the old structure has 5 single semiconductor devices per week on average (long-term observed data).

The accessible is with terminal one shot forming (shell and anti-static structure one shot injection moulding), and the new construction is applied to corresponding ripe wire assembly product and is connected the controller product that easily became invalid, prevents that a large amount of reworks or dismantlement from causing cost loss, productivity loss etc..

According to the invention, the shape of the plastic shell is adjusted by changing the structure of the terminal, the metal pointer is integrally wrapped, the original pointer exposure is changed into an integral closed structure, the pointer body cannot be contacted with the outside, and the all-round closure only reserves corresponding hole sites for pointer plug-in to avoid electrostatic hidden trouble caused by pointer exposure; the problem of cause the damage after the uncontrollable static harm passes through metal pointer transmission to the circuit board in the environment is solved, reduce the quality hidden danger, improve production efficiency.

The terminal structure after the change seals the metal pointer in moulding the shell completely, only reserves corresponding hole and carries out the opposite insertion with external terminal, stops to lead to the problem of going into of voltage through the metal contact, reduces the quality hidden danger.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A connecting terminal is characterized in that: the anti-static electricity meter comprises a shell (1) and a pointer, wherein a slot (2) used for accommodating the pointer is formed in the shell (1), a windowing (3) used for observation and/or maintenance is further arranged on the shell (1) at a position corresponding to the slot (2), and an anti-static structure (4) used for sealing the windowing (3) to prevent electricity from escaping from the windowing position is further arranged on the shell (1) at a position corresponding to the windowing (3);

the shell (1) comprises a first side surface (5) and a second side surface (6) which are opposite, the slot (2) is arranged at a position close to the first side surface, the windowing (3) is arranged on the second side surface, and the extending direction of the windowing (3) is the same as the extending direction of the slot (2); and the terminal end face where the upper end of the slot (2) is located is also provided with at least one sealing groove (7) which is close to the second side face (6) and has the same extension direction with the slot (2).

2. The connection terminal according to claim 1, wherein: the anti-static structure (4) is an insulating anti-static sheet and is integrally injection-molded with the shell (1).

3. The connection terminal according to claim 2, wherein: the thickness of the insulating antistatic sheet is 0.1-0.5 mm.

4. The connection terminal according to claim 1, wherein: and a positioning groove and/or an ink jet printing line for positioning the processing of the window (3) are/is further arranged on the second side surface (6) along the peripheral position of the window (3).

5. A terminal according to one of claims 1 to 4, characterized in that: the second side surface (6) is further provided with at least one positioning groove (8) which is concave towards the first side surface (5), and the positioning groove (8) extends along the same extending direction with the slot (3).

6. The connection terminal according to claim 5, wherein: the depth of the positioning groove (8) is 0.1-0.2 mm.

7. A terminal according to one of claims 1 to 4, characterized in that: the number of the pointers is multiple, the number of the slots is multiple, the slots correspond to the pointers one by one, the number of the windows is multiple, the windows correspond to the slots one by one, and each window is provided with one anti-static structure;

8. The connection terminal according to claim 7, wherein: when the terminal comprises a plurality of sealing grooves, the sealing grooves are arranged on the terminal end face in a row at intervals, wherein the row is the same as the arrangement direction of the slots;

and/or, when the positioning groove is included, the positioning groove is multiple, and one positioning groove is arranged between every two adjacent windows (3).

9. A terminal according to one of claims 1 to 4, characterized in that: the pointer is arranged to be fully received in the slot (2) corresponding thereto.

10. The connection terminal according to claim 9, wherein: the free end of the pointer is spaced from the end face of the slot (2) by a preset distance or is flush with the end face.

11. A terminal according to one of claims 1 to 4, characterized in that: the shell (1) is an insulating plastic shell, and the pointer is a metal pointer.