Terminal fixing structure

Abstract

The utility model provides a terminal fixing structure which comprises a plate end assembly and a wire end assembly which are matched with each other, the plate end assembly comprises a plate end sheath and a plurality of PINs which are arranged in the plate end sheath at intervals, and the wire end assembly comprises a wire end sheath and a plurality of terminals which are arranged in the wire end sheath at intervals. One side of the plate end sheath and one side of the wire end sheath are provided with first buckling pieces which can be mutually buckled, the plurality of terminals and the plurality of PINs are in one-to-one correspondence, the terminals are provided with first slots, one ends of the PINs are inserted into the first slots of the corresponding terminals, and a locking assembly used for fixing or loosening the terminals and the corresponding PINs is arranged between the plate end assembly and the wire end assembly. According to the utility model, the terminals and the PINs can be tightly combined, and the connector is not easy to fall off when a vehicle vibrates.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of automobile lighting, especially relates to a terminal fixing structure. BACKGROUND

[0002] Connectors are widely used in various electrical circuits, playing the role of connecting or disconnecting circuits and functional switches. As is known, two conductors lapped together must be closely attached during current transmission. The current delivered by the automobile lamp delivery wire harness reaches several amperes, and the matching between the connector terminals is very strict. When the two lapped parts are loose, the conductor contact will be poor, the resistance will increase, and thus the function will fail, and the automobile lamp will be extinguished. The terminal and PIN pin are lapped conductors and the core components of the connector. Generally, the wire harness is fastened by the PIN pin and the board end sheath, and the terminal and the wire end sheath. Since the wire end sheath and the board end sheath are only buckled and locked, when the vehicle vibrates, the connector is easy to fall off, causing the two lapped connection parts of the terminal and the PIN pin to be loose, and thus the conductor contact will be poor, the resistance will increase, and thus the function will fail, and the automobile lamp will be extinguished. SUMMARY

[0003] The utility model aims at providing a terminal fixing structure which can tightly combine the terminal and the PIN pin and prevent the connector from falling off when the vehicle vibrates.

[0004] The utility model is implemented by the following technical scheme:

[0005] A terminal fixing structure comprises a board end assembly and a wire end assembly which are matched with each other, the board end assembly comprises a board end sheath and a plurality of PIN pins which are arranged at intervals in the board end sheath, the wire end assembly comprises a wire end sheath and a plurality of terminals which are arranged at intervals in the wire end sheath, one side of the board end sheath and the wire end sheath is provided with first buckling members which can be buckled with each other, the plurality of terminals and the plurality of PIN pins are in one-to-one correspondence, a first slot is formed in the terminal, one end of the PIN pin is inserted into the first slot of the corresponding terminal, and a locking assembly for fixing or loosening the terminal and the corresponding PIN pin is arranged between the board end assembly and the wire end assembly.

[0006] Further, the locking assembly comprises a locking rod, the locking rod has a first end and a second end which are arranged oppositely, a first through hole through which the locking rod passes is arranged on one side of the board end sheath, an insertion hole into which the first end of the locking rod is inserted is arranged on the other side of the board end sheath, second through holes through which the locking rod passes are arranged on the two sides of the wire end sheath, a third through hole through which the locking rod passes is arranged on the PIN pin, a fourth through hole through which the locking rod passes is arranged on the terminal, the second end of the locking rod and the side of the board end sheath where the first through hole is formed are provided with second buckling members which can be buckled with each other, when the locking rod is buckled with the board end sheath, the locking rod penetrates the first through hole, the second through hole, the third through hole and the fourth through hole, and the first end of the locking rod is inserted into the insertion hole.

[0007] Further, the second buckling member comprises a second buckle arranged on the board end sleeve and a second buckling plate arranged on the second end of the locking rod, the second buckling plate can be pulled out of the second buckle.

[0008] Further, the second buckling plate is provided with a dismounting groove on the top.

[0009] Further, the first buckling member comprises a first buckle arranged on the board end sleeve and a first buckling plate arranged on the wire end sleeve, the first buckling plate can be pressed out of the first buckle.

[0010] Further, the terminal is provided with a barb capable of being elastically deformed on the bottom, the wire end sleeve is provided with a plurality of insertion grooves for inserting the plurality of terminals respectively, and the insertion grooves are provided with recesses for inserting the barbs on the bottom.

[0011] Further, the wire end assembly further comprises a secondary locking plate, the secondary locking plate is provided with a plurality of pressing columns corresponding to the plurality of terminals respectively, the terminals are provided with second insertion grooves for inserting the pressing columns, and the secondary locking plate and the wire end sleeve are provided with third buckling members capable of being buckled with each other, when the secondary locking plate is buckled with the wire end sleeve, the pressing columns are inserted into the second insertion grooves of the corresponding terminals.

[0012] Further, the secondary locking plate is provided with a guide plate, the guide plate is provided with a plurality of guide grooves, and the wire end sleeve is provided with guide rails matched with the plurality of guide grooves.

[0013] Further, the third buckling member comprises a third buckle arranged on the wire end sleeve and a third buckling plate arranged on the secondary locking plate, the third buckling plate can be pulled out of the third buckle.

[0014] Compared with the prior art, the board end sleeve and the wire end sleeve are fixed into an integrated whole through the first buckling member, and the terminals and the corresponding PIN pins are fixed through the locking assembly, so that the terminals and the PIN pins are closely combined, when the vehicle vibrates, the two lap joints of the terminals and the PIN pins are not easy to loosen, and the connector is not easy to fall off, so that the situation that the function is invalid due to poor contact between the terminals and the PIN pins and the resistance is large and the vehicle lamp is extinguished is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an exploded view of the terminal fixing structure of the utility model;

[0016] Figure 2 It is a top view of the terminal fixing structure of the utility model;

[0017] Figure 3 It is a top view of the terminal fixing structure of the utility model; Figure 2 A-A sectional view;

[0018] Figure 4 B-B is the sectional view of the terminal fixing structure of the utility model; Figure 2 B-B is the sectional view of the terminal fixing structure of the utility model;

[0019] Figure 5 B-B is the sectional view of the terminal fixing structure of the utility model;

[0020] Figure 6 B-B is the sectional view of the terminal fixing structure of the utility model;

[0021] Figure 7 B-B is the sectional view of the terminal fixing structure of the utility model.

[0022] In the figure, 1-plate end sheath, 11-first through hole, 12-insertion hole, 13-second buckle, 14-first buckle, 2-PIN needle, 21-third through hole, 3-wire end sheath, 31-second through hole, 32-first buckle plate, 33-groove, 34-guide rail, 35-third buckle, 4-terminal, 41-first insertion slot, 42-fourth through hole, 43-barb, 44-second insertion slot, 5-locking rod, 6-second buckle plate, 61-disassembly groove, 7-secondary locking piece, 71-pressing column, 72-guide plate, 73-third buckle plate. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] It should be noted that: similar signs and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. Meanwhile, in the description of the utility model, the terms "first", "second" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0026] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0027] In the description of the utility model, it needs to explain, the orientation or position relation indicated by the terms "upper", "lower", "inner", "outer" and the like is based on the orientation or position relation shown in the drawing, or is the orientation or position relation of the utility model product when using commonly, just is for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element must have a particular orientation, is constructed and operated with a particular orientation, therefore can not be understood as the limitation of the utility model.

[0028] Please refer to Figures 1 to 4 , Figure 1 It is the explosion chart of the terminal fixing structure of the utility model, Figure 2 It is the plan view of the terminal fixing structure of the utility model, Figure 3 It is Figure 2 A-A sectional view, Figure 4 It is Figure 2 B-B sectional view. A terminal fixing structure, including mutually matched plate end assembly and wire end assembly, plate end assembly includes plate end sheath 1 and multiple PIN needles 2 that are arranged at intervals in plate end sheath 1, wire end assembly includes wire end sheath 3 and multiple terminals 4 that are arranged at intervals in wire end sheath 3, one side of plate end sheath 1 and wire end sheath 3 is provided with first buckling member that can be buckled with each other, multiple terminals 4 and multiple PIN needles 2 correspond one by one, first slot 41 is opened on terminal 4, one end of PIN needle 2 is inserted into the first slot 41 of corresponding terminal 4, locking assembly for fixing or loosening terminal 4 and corresponding PIN needle 2 is arranged between plate end assembly and wire end assembly.

[0029] The utility model discloses terminal fixed knot structure when installing, wire end sheath 3 inserts board end sheath 1, and wire end sheath 3 and board end sheath 1 are fixed into an organic whole through first buckling piece, then through locking assembly fixed terminal 4 and corresponding PIN needle 2, to make terminal 4 and PIN needle 2 tightly combine, when the vehicle vibrates, because locking assembly fixes PIN needle 2 with corresponding terminal 4, PIN needle 2 and terminal 4 two lap joint connection are not easy to loosen, and then make the connector not easy to fall off, avoid because terminal 4 and PIN needle 2 contact badly, and resistance becomes big to cause functional failure, and the car light will be extinguished. When disassembling, through the locking assembly, terminal 4 and corresponding PIN needle 2 are loosened, so that terminal 4 and PIN needle 2 are mutually loosened, then the buckling of board end sheath 1 and wire end sheath 3 is released, at this time, the board end assembly and the wire end assembly can be separated.

[0030] Please refer to Figures 5 to 7 , Figure 5 It is the structure diagram of locking rod in the terminal fixed knot structure of the utility model, Figure 6 It is the structure diagram of PIN needle in the terminal fixed knot structure of the utility model, Figure 7 It is the structure diagram of terminal in the terminal fixed knot structure of the utility model. In an embodiment, the locking assembly includes a locking rod 5, the locking rod 5 has a first end and a second end arranged oppositely, the board end sheath 1 is provided with a first through hole 11 for the locking rod 5 to pass through on one side, the board end sheath 1 is provided with an insertion hole 12 for the first end of the locking rod 5 to insert on the other side, the wire end sheath 3 is provided with a second through hole 31 for the locking rod 5 to pass through on both sides, the PIN needle 2 is provided with a third through hole 21 for the locking rod 5 to pass through, and the terminal 4 is provided with a fourth through hole 42 for the locking rod 5 to pass through, the second end of the locking rod 5 and the side of the board end sheath 1 where the first through hole 11 is arranged are provided with a second buckling piece capable of buckling with each other, when the locking rod 5 is buckled with the board end sheath 1, the locking rod 5 penetrates the first through hole 11, the second through hole 31, the third through hole 21 and the fourth through hole 42, and the first end of the locking rod 5 is inserted into the insertion hole 12. When it is needed to fix the terminal 4 and the corresponding PIN needle 2, the locking rod 5 is inserted into the first through hole 11, penetrates the corresponding first through hole 11, the second through hole 31, the third through hole 21 and the fourth through hole 42, and is then inserted into the insertion hole 12, at this time, the locking rod 5 is buckled with the board end sheath 1 through the second buckling piece, the locking rod 5 is fixed, and the locking rod 5 penetrates the third through hole 21 of each PIN needle 2 and the fourth through hole 42 of each terminal 4, so that the PIN needle 2 can be fixed on the corresponding terminal 4. When it is needed to loosen the terminal 4 and the corresponding PIN needle 2, the buckling of the locking rod 5 and the board end sheath 1 is released, and then the locking rod 5 is pulled out, so that the terminal 4 and the PIN needle 2 are mutually loosened.

[0031] In an embodiment, the second fastening member comprises a second fastening seat 13 arranged on the board end sleeve 1, and a second fastening plate 6 arranged on the second end of the locking rod 5, the second fastening plate 6 being capable of being pulled out of the second fastening seat 13. The second fastening member can adopt a commonly used fastening manner, specifically, the second fastening seat 13 is arranged above the first through hole 11, the second fastening seat 13 is provided with a fastening groove, and the top end of the second fastening plate 6 is provided with a clamping block for inserting into the fastening groove. During installation, the second fastening plate 6 is pressed, so that the clamping block on the second fastening plate 6 is inserted into the fastening groove, and the clamping block and the fastening groove are buckled with each other to achieve the fastening of the locking rod 5 and the board end sleeve 1. During disassembly, the user applies force to pull the second fastening plate 6, so that the clamping block of the second fastening plate 6 is separated from the fastening groove, and the locking rod 5 and the board end sleeve 1 can be separated at this time. In order to facilitate the application of pulling force to the second fastening plate 6, in an embodiment, the top of the second fastening plate 6 is provided with a disassembly groove 61. This arrangement facilitates the user to apply pulling force to the second fastening plate 6 through the disassembly groove 61.

[0032] In an embodiment, the first fastening member comprises a first fastening seat 14 arranged on the board end sleeve 1, and a first fastening plate 32 arranged on the wire end sleeve 3, the first fastening plate 32 being capable of being pressed out of the first fastening seat 14. The first fastening member can adopt a commonly used fastening manner, specifically, the first fastening seat 14 is in the shape of a trapezoid as a whole, the first fastening plate 32 is capable of being deformed by pressing, and the first fastening plate 32 is provided with a clamping hook abutting against one side wall of the first fastening seat 14. During installation, the clamping hook moves along the first fastening seat 14 to abut against one side wall of the first fastening seat 14, achieving the fastening of the board end sleeve 1 and the wire end sleeve 3. During disassembly, the user applies a certain pressing force to the end of the first fastening plate 32 away from the clamping hook, so that the first fastening plate 32 and the end of the clamping hook are lifted to separate the clamping hook from the first fastening seat 14, and the wire end sleeve 3 and the board end sleeve 1 can be separated at this time.

[0033] In an embodiment, the bottom of the terminal 4 is provided with a barb 43 capable of elastic deformation, the wire end sleeve 3 is provided with a plurality of insertion slots for inserting the plurality of terminals 4 respectively, and the bottom of each insertion slot is provided with a groove 33 for inserting the barb 43. The terminal 4 is inserted into the insertion slot of the wire end sleeve 3 in an insertion manner. When the terminal 4 is inserted, the barb 43 at the bottom of the terminal 4 is extruded by the bottom of the insertion slot and deforms elastically. When the terminal 4 is inserted in place, i.e., the barb 43 moves to the position of the groove 33, the barb 43 is no longer extruded by external force. At this time, the barb 43 rebounds and is inserted into the groove 33, thereby forming mutual limiting through the barb 43 and the groove 33, preventing the terminal 4 from falling off the wire end sleeve 3, and enabling the terminal 4 to be installed in the wire end sleeve 3. In order to enable the terminal 4 to be more firmly installed in the wire end sleeve 3, in an embodiment, the wire end assembly further comprises a secondary locking sheet 7. The secondary locking sheet 7 is provided with a plurality of pressing columns 71 corresponding to the plurality of terminals 4 one by one. The terminal 4 is provided with a second insertion slot 44 for inserting the pressing column 71. The secondary locking sheet 7 and the wire end sleeve 3 are provided with third buckling members capable of being buckled with each other. When the secondary locking sheet 7 is buckled with the wire end sleeve 3, the pressing column 71 is inserted into the second insertion slot 44 of the corresponding terminal 4. The secondary locking sheet 7 can be clamped on the wire end sleeve 3, and the pressing column 71 on the secondary locking sheet 7 passes through the corresponding insertion slot and is inserted into the second insertion slot 44 of the terminal 4. The corresponding terminal 4 is pressed by the pressing column 71, thereby playing a role of fixing and limiting the position of the terminal 4 and further preventing the terminal 4 from falling off the wire end sleeve 3.

[0034] In an embodiment, the secondary locking sheet 7 is provided with a guide plate 72, the guide plate 72 is provided with a plurality of guide grooves, and the wire end sleeve 3 is provided with guide rails 34 matched with the plurality of guide grooves. Through the cooperation of the guide grooves and the guide rails 34, the moving direction of the secondary locking sheet 7 is limited, so that when the secondary locking sheet 7 is inserted into the wire end sleeve 3 and clamped with the wire end sleeve 3, each pressing column 71 can be smoothly inserted into the second insertion slot 44 of each terminal 4.

[0035] In an embodiment, the third buckling member comprises a third buckling seat 35 arranged on the wire end sleeve 3 and a third buckling plate 73 arranged on the secondary locking sheet 7. The third buckling plate 73 can be pulled out of the third buckling seat 35. The third buckling member can also adopt the existing common buckling manner. Specifically, the third buckling seat 35 is trapezoidal in shape as a whole. The third buckling plate 73 can be deformed by pulling. The third buckling plate 73 is provided with a buckling groove accommodating the third buckling seat 35. During installation, the third buckling plate 73 moves along the third buckling seat 35, so that the third buckling seat 35 is inserted into the buckling groove of the third buckling plate 73, thereby realizing the buckling of the secondary locking sheet 7 and the wire end sleeve 3. During disassembly, the user pulls the third buckling plate 73, so that the third buckling seat 35 is separated from the buckling groove of the third buckling plate 73. At this time, the wire end sleeve 3 and the secondary locking sheet 7 can be separated.

[0036] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Any simple modification, equivalent change, and modification of the above embodiments, which do not deviate from the technical solutions of the present application and are based on the technical essence of the present application, still belong to the scope of the technical solutions of the present application.

Claims

1. A terminal fixing structure comprising a board end assembly and a wire end assembly which cooperate with each other, characterized in that, The plate end assembly comprises a plate end sleeve and a plurality of PIN pins arranged in the plate end sleeve, the wire end assembly comprises a wire end sleeve and a plurality of terminals arranged in the wire end sleeve, one side of the plate end sleeve and the wire end sleeve is provided with a first buckling part capable of buckling with each other, the plurality of terminals and the plurality of PIN pins are one-to-one corresponding, the terminal is provided with a first slot, and one end of the PIN pin is inserted into the first slot of the corresponding terminal, and the plate end assembly and the wire end assembly are provided with a locking assembly for fixing or releasing the terminal and the corresponding PIN pin.

2. The terminal fixing structure according to claim 1, characterized by The locking assembly comprises a locking rod, the locking rod has a first end and a second end arranged oppositely, one side of the plate end sleeve is provided with a first through hole for the locking rod to pass through, the other side of the plate end sleeve is provided with an insertion hole for the first end of the locking rod to insert, both sides of the wire end sleeve are provided with a second through hole for the locking rod to pass through, the PIN pin is provided with a third through hole for the locking rod to pass through, and the terminal is provided with a fourth through hole for the locking rod to pass through; the second end of the locking rod and the side of the plate end sleeve provided with the first through hole are provided with a second buckling part capable of buckling with each other, when the locking rod is buckled with the plate end sleeve, the locking rod penetrates through the first through hole, the second through hole, the third through hole and the fourth through hole, and the first end of the locking rod is inserted into the insertion hole.

3. The terminal fixing structure according to claim 2, characterized by The second buckling part comprises a second buckle arranged on the plate end sleeve and a second buckle plate arranged on the second end of the locking rod, and the second buckle plate can be pulled out of the second buckle.

4. The terminal fixing structure according to claim 3, characterized by The second buckle plate is provided with a dismounting groove at the top.

5. The terminal fixing structure according to claim 1, characterized by The first buckling part comprises a first buckle arranged on the plate end sleeve and a first buckle plate arranged on the wire end sleeve, and the first buckle plate can be pressed out of the first buckle.

6. The terminal fixing structure according to claim 1, characterized by The terminal is provided with a barb capable of being elastically deformed at the bottom, the wire end sleeve is provided with a plurality of insertion grooves for the plurality of terminals to insert respectively, and the insertion groove is provided with a recess for the barb to insert at the bottom.

7. The terminal fixing structure according to claim 6, characterized by The wire end assembly further comprises a secondary locking sheet, the secondary locking sheet is provided with a plurality of pressing columns corresponding to the plurality of terminals, the terminal is provided with a second slot for the pressing column to insert, and opposite sides of the secondary locking sheet and the wire end sleeve are provided with a third buckling part capable of buckling with each other; when the secondary locking sheet is buckled with the wire end sleeve, the pressing column is inserted into the second slot of the corresponding terminal.

8. The terminal fixing structure according to claim 7, characterized by The secondary locking sheet is provided with a guide plate, the guide plate is provided with a plurality of guide grooves, and the wire end sleeve is provided with a guide rail matched with the plurality of guide grooves.

9. The terminal fixing structure according to claim 7, characterized by The third buckling part comprises a third buckle arranged on the wire end sleeve and a third buckle plate arranged on the secondary locking sheet, and the third buckle plate can be pulled out of the third buckle.

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