Electric connector

Abstract

The utility model provides an electric connector, which comprises an insulation body, a plurality of conductive terminals and a locking piece, the insulation body is provided with a base body part and a plurality of butt joint columns formed by extending forwards from the base body part, the plurality of butt joint columns are arranged in the transverse direction, the conductive terminals are fixed in the corresponding butt joint columns, and the locking piece is fixed on the base body part. The locking piece is fixed on the insulating body so as to stop the conductive terminals; the locking piece is provided with a substrate part and a plurality of stopping convex parts formed by extending from the substrate part, the substrate part is in a flat plate shape and covers the base body part within the coverage range of the outer contour of the substrate part, and the stopping convex parts are inserted into corresponding slots arranged on the insulating body to stop the conductive terminals. The electric connector provided by the utility model is high in structural strength, and can be suitable for large current transmission.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric connector. BACKGROUND

[0002] The conventional electric connector comprises an insulating body and a conductive terminal fixed in the insulating body. When the conductive terminal needs to be locked, a locking member is usually arranged to lock the installation position of the conductive terminal to prevent it from exiting the terminal groove. However, the conventional locking member has weak structural strength due to the arrangement of many matching structures adapted to the insulating body, the conductive terminal and even the mating connector, and thus cannot ensure the locking effect on the conductive terminal.

[0003] Therefore, it is necessary to improve the existing electric connector to solve the above problems. SUMMARY

[0004] The utility model discloses a kind of electric connectors with high structural strength.

[0005] To achieve the above-mentioned utility model purposes, the utility model provides an electric connector, which comprises an insulating body, a plurality of conductive terminals and a locking member. The insulating body has a base portion and a plurality of mating columns extending forward from the base portion. The plurality of mating columns are arranged in the transverse direction. The conductive terminals are fixed in the corresponding mating columns. The locking member is fixed to the insulating body to stop the conductive terminals. The locking member has a base plate portion and a plurality of stop protrusions extending from the base plate portion. The base plate portion is flat and covers the base portion within its outer contour. The stop protrusions are inserted into the corresponding insertion slots provided on the insulating body to stop the conductive terminals.

[0006] As a further improvement of the utility model, the insertion slots are provided on the base portion and communicate with the mating channels provided on the corresponding mating columns.

[0007] As a further improvement of the utility model, the locking member further has a plurality of spacing portions extending from the base plate portion. The spacing portions and the stop protrusions have the same protruding direction and are alternately arranged in the transverse direction. The base portion has a receiving slot between the adjacent two mating columns in the transverse direction. The spacing portions are inserted into the corresponding receiving slots to extend between the adjacent two conductive terminals.

[0008] As a further improvement of the utility model, each receiving slot extends in the height direction, and the conductive terminals are located within the extension range of the adjacent receiving slots in the height direction.

[0009] As a further improvement of the utility model, the stop protrusions are located within the extension range of the spacing portions in the front-rear direction.

[0010] As a further improvement of the utility model, the locking piece further has a protruding plate on the front side of the base plate part, and the butt joint column has a mounting groove accommodating the protruding plate.

[0011] As a further improvement of the utility model, when the locking piece is not completely installed in the insulating body, the protruding plate is at least partially exposed outside the mounting groove in the height direction to stop the butt joint connector.

[0012] As a further improvement of the utility model, when the locking piece is completely installed in the insulating body, the lower surface of the protruding plate is not lower than the lower surface of the butt joint column.

[0013] As a further improvement of the utility model, the protruding plate and the base plate part have a step in the height direction.

[0014] As a further improvement of the utility model, the locking piece further has at least one pair of clamping arms arranged on both sides thereof to be locked with the insulating body, and the clamping arms are covered by the base plate part in the height direction.

[0015] The utility model discloses an electric connector, which has the advantages that: the base plate part is arranged in a flat plate shape and covers the base body part in the coverage range of the outer contour, so that the structural strength of the locking piece can be ensured, the problem of weakening of the structural strength of the locking piece caused by the slotting on the base plate part can be avoided, the base body part can be covered to ensure the safety of the electrically connected part, the stop protruding part extending from the base plate part is used to realize the secondary locking of the conductive terminal, the conductive terminal can be prevented from being withdrawn from the insulating body, and the stability of the electrically connected part can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a perspective assembly view of a first embodiment of the electric connector of the utility model.

[0017] Figure 2 Fig. 2 is a view of the electric connector of Fig. 1 from another perspective. Figure 1

[0018] Figure 3 Fig. 3 is a perspective exploded view of the electric connector of Fig. 1. Figure 1

[0019] Figure 4 Fig. 4 is a view of the electric connector of Fig. 1 from another perspective. Figure 3

[0020] Figure 5 Fig. 5 is a front view of the locking piece of the electric connector of Fig. 1. Figure 3

[0021] Figure 6 Fig. 6 is a view of the locking piece of the electric connector of Fig. 1 from another perspective.​​​​Figure 1 A front view of the electrical connector shown.

[0022] Figure 7 is Figure 6 An enlarged view of A in the electrical connector shown.

[0023] Figures 8 to 9 is Figure 1 A sectional view of the electrical connector shown.

[0024] Figure 10 is Figure 1 A sectional view of the electrical connector shown after the electrical connector is plugged with a mating connector.

[0025] Figure 11 is Figure 1 A sectional view of the electrical connector shown when the electrical connector is not plugged with a mating connector.

[0026] Figure 12 is a perspective assembly view of a second embodiment of the electrical connector of the present application. DETAILED DESCRIPTION

[0027] The present application will be described in detail below with reference to the embodiments shown in the drawings. However, the embodiments do not limit the present application, and the structural, method, or functional changes made by those skilled in the art based on the embodiments are included in the protection scope of the present application.

[0028] Please refer to Figures 1 to 7 As shown in the preferred embodiment of the electrical connector 100 of the present application, in the embodiment, the electrical connector 100 comprises an insulating body 1, a plurality of conductive terminals 2, and a locking member 3, and the conductive terminals 2 are fixed in the insulating body 1.

[0029] For the convenience of description, when the electrical connector 100 is introduced below, the mating direction of the electrical connector 100 is regarded as the front-rear direction, one direction perpendicular to the front-rear direction is regarded as the lateral direction, and the other direction perpendicular to the front-rear direction is regarded as the height direction.

[0030] Please refer to Figures 1 to 4 As shown, the insulating body 1 has a base body portion 11 and a plurality of mating columns 12 formed by extending forward from the base body portion 11, the plurality of mating columns 12 are arranged in the lateral direction, the conductive terminals 2 are fixed in the corresponding mating columns 12, and the locking member 3 is fixed to the insulating body 1 to stop the conductive terminals 2.

[0031] In the embodiment shown in the utility model, the butt joint columns 12 are arranged in a row along the transverse direction, the lower surface of the butt joint column 12 is higher than the lower surface of the base body part 11 to form a height difference between the butt joint column 12 and the base body part 11; in other embodiments, the butt joint columns 12 can also be arranged in two or more rows at intervals in the height direction, the butt joint columns 12 in each row are arranged along the transverse direction, and the lower surface of the butt joint column 12 in the lowermost row is higher than the lower surface of the base body part 11.

[0032] The locking piece 3 has a base plate part 31 and a plurality of stop protrusions 32 extending from the base plate part 31, the base plate part 31 is flat and covers the base body part 11 within the coverage range of the outer contour, and the stop protrusions 32 are inserted into the corresponding insertion slots 110 provided on the insulating body 1 to stop the conductive terminal 2. In this way, the electric connector 100 of the utility model can not only ensure the structural strength of the locking piece 3 and avoid the problem of weakening the structural strength of the locking piece 3 due to the slotting on the base plate part 31, but also can mask the base body part 11 to ensure the safety of the electrically connected part, and the stop protrusions 32 extending from the base plate part are used to realize the secondary locking of the conductive terminal 2, prevent it from withdrawing backward from the insulating body 1, and further ensure the stability of the electrical connection.

[0033] Specifically, in the embodiment shown in the utility model, the insertion slot 110 is provided on the base body part 11 and communicates with the corresponding butt joint channel 120 provided on the butt joint column 12. The base body part 11 is also provided with a recessed part 111 recessed upward from the bottom surface, the recessed part 111 communicates with the insertion slot 110, and the base plate part 31 is accommodated in the recessed part 111. In the utility model, since the overall structure of the base body part 11 is stronger than that of the butt joint column 12, by providing the insertion slot 110 on the base body part 11, the slotting on the butt joint column 12 is avoided, so that the structural strength of the butt joint column 12 is not damaged.

[0034] Each butt joint column 12 is provided with the butt joint channel 120 extending along the front-rear direction, the butt joint channel 120 penetrates the butt joint column 12 along the front-rear direction and includes the first channel 121 and the second channel 123 arranged adjacent to and in communication with each other in the height direction, and the first channel 121 is located on the upper side of the second channel 123. The butt joint column 12 has a partition part 124 located at the front part to separate the first channel 121 and the second channel 123 at the front part, and the partition part 124 is located between the first channel 121 and the second channel 123 in the height direction.

[0035] In the embodiment, each of the docking columns 12 has first and second surfaces 125 and 126 oppositely arranged in the lateral direction, at least one of the first and second surfaces 125 and 126 is curved and protrudes outwardly from the middle part of the docking channel 120. The protruding side surface of the docking column 12 increases the creepage distance of the electric arc, reduces the probability of the plastic docking column 12 being broken down by a large current, protects the structure of the docking column 12, and increases the structural strength of the insulating body 1.

[0036] In the embodiment, only one of the first and second surfaces 125 and 126 of the two docking columns 12 located at the outermost side in the lateral direction is curved, and the first and second surfaces 125 and 126 of the docking columns 12 located at the inner side are both curved.

[0037] Further, in the utility model, the base part 11 is provided with a pair of buckle grooves 113 located on both sides of the docking column 12 in the lateral direction, the buckle grooves 113 are recessed upward from the bottom surface of the base part 11, and the base part 11 is provided with a slot 114 recessed from the front end surface to the rear to communicate with the buckle grooves 113, and a buckle protrusion 1131 is formed in the buckle groove 113.

[0038] In addition, in the embodiment, the insulating body 1 further has a lateral wall 13 located on the upper side of the docking column 12 and a plurality of connecting walls 14 connecting the lateral wall 13 and the docking column 12, and each connecting wall 14 is connected to the top of the docking column 12. The receiving groove 112 provided on the base part 11 is recessed upward and the top end is located below the lower end surface of the lateral wall 113.

[0039] Further, the connecting wall 14 includes a first connecting wall 141 and a second connecting wall 142, the first and second connecting walls 141 and 142 have different lengths in the front-rear direction, the second connecting wall 142 has a greater length than the first connecting wall 141 in the front-rear direction, and one first connecting wall 141 is arranged between two adjacent second connecting walls 142.

[0040] In this way, the first and second connecting walls 141 and 142 with different lengths are respectively matched with different missing slots on the docking connector 200, so as to realize accurate alignment and reliable plugging between the docking column 12 and the docking part of the docking connector, thereby improving the stability of plugging between the electric connector 100 and the docking connector 200 and ensuring the stability of signal transmission.

[0041] The insulating body 1 further has a guide portion 15 and a locking portion 16 on the upper side of the lateral wall 13, the guide portion 15 is protruded upward from the upper surface of the lateral wall 13, the guide portion 15 is used to guide the plug-in of the mating connector 200, and the locking portion 16 is matched with the locking structure of the mating connector 200 to realize locking and unlocking.

[0042] In some embodiments, the conductive terminals 2 are arranged in one-to-one correspondence with the mating columns 12, and each of the conductive terminals 2 comprises a contact portion 21 on the front side, a connecting portion 23 on the rear side, and a holding portion 24 connecting the contact portion 21 and the connecting portion 23. In this embodiment, the connecting portion 23 is used to be connected with a cable (not shown), and in other embodiments, the connecting portion 23 can also be connected with an external circuit board (not shown).

[0043] The holding portion 24 has a downward protruding abutting arm 241, which abuts against a stop surface 1231 arranged in the second channel 123, the stop surface 1231 is arranged facing forward, and the abutting arm 241 is located on the front side of the stop surface 1231. When the locking member 3 is completely installed in the insulating body 1, the rear end surface of the holding portion 24 is located on the front side of the stop protrusion 32 and is stopped by the stop protrusion 32, and the purpose of preventing the conductive terminal 2 from being withdrawn rearward from the mating channel 120 is achieved by the double action of the stop protrusion 32 and the stop surface 1231.

[0044] Please refer to Figures 3 to 5 As shown in the utility model, the locking member 3 further has a plurality of spacing portions 34 extending from the base plate portion 31, the spacing portions 34 and the stop protrusions 32 have the same protruding direction and are alternately arranged in the lateral direction, the base body portion 11 has a receiving groove 112 located between two adjacent mating columns 12 in the lateral direction, the spacing portion 34 is inserted into the corresponding receiving groove 112 to extend into the two adjacent conductive terminals 2, thereby increasing the arc creepage distance between the contact portions of the adjacent conductive terminals 2, reducing the probability of the mating column made of plastic material being broken down by a large current, achieving the effect of protecting the mating column structure, and further increasing the structural strength of the insulating body 1.

[0045] Each of the receiving grooves 112 extends in the height direction, and the conductive terminal 2 is located within the extension range of the adjacent receiving grooves 112 in the height direction. Further, the receiving groove 112 is recessed upward from the lower surface of the base body portion 11, and the top end of the receiving groove 112 is slightly lower than the upper end surface of the mating column 12, so as to avoid the problem that the structural strength of the base body portion 11 is weakened due to the excessive depth of the receiving groove 112 in the height direction.

[0046] The stop protrusion 32 is located in the extension range of the spacing portion 34 in the front-rear direction, so as to ensure that the spacing portion 34 can increase the creeping distance of the electric arc in the front-rear direction. Meanwhile, the extension size of the spacing portion 34 in the height direction is greater than the extension size of the stop protrusion 32 in the height direction, so as to ensure that the spacing portion 34 can increase the creeping distance of the electric arc in the height direction.

[0047] As shown in Figures 3 to 5 and Figure 8 , Figure 9 In the first embodiment of the electric connector 100, the locking member 3 further has a protruding plate 35 located at the front side of the base plate portion 31, and the mating column 12 has a mounting groove 127 accommodating the protruding plate 35.

[0048] Specifically, the mounting groove 127 is recessed upward from the lower surface of the mating column 12, but does not penetrate the wall portion of the mating column 12 to form a shallow groove, avoiding the problem that opening a deep groove on the mating column 12 causes the structural strength to be weakened. In addition, the mounting groove 127 is adjacent to the base portion 11 to communicate with the insertion groove 110.

[0049] As shown in Figure 11 When the locking member 3 is not completely installed in the insulating body 1 during assembly, the protruding plate 35 is at least partially exposed to the outside of the mounting groove 127 in the height direction to stop the mating connector 200, so that the mating connector 200 cannot continue to be inserted with the electric connector 100. That is, when the locking member 3 is not completely installed in the insulating body 1, the mating connector 200 cannot be inserted with the electric connector 100, avoiding the situation that the conductive terminal 2 is inserted with the mating terminal of the mating connector 200 without being locked by the locking member 3 again, and causing the position of the conductive terminal 2 in the insulating body 1 to be unstable.

[0050] As shown in Figure 10 When the locking member 3 is completely installed in the insulating body 1, the lower surface of the protruding plate 35 is not lower than the lower surface of the mating column 12. At this time, the mating connector 200 can be further inserted with the electric connector 100 from front to back, so that the mating column 12 of the electric connector 100 is completely inserted into the mating cavity of the mating connector 200.

[0051] In some embodiments of the utility model, the protruding plate 35 and the base plate portion 31 have a step in the height direction. That is, as shown in Figure 5 and Figure 8As shown, the protruding plate 35 is located on the upper side of the substrate portion 31, of course, the protruding plate 35 can only have a certain height difference with the substrate portion 31 in the height direction, and does not need to be completely located on the upper side of the substrate portion 31, so as to increase the creeping distance of the arc and avoid the occurrence of the fire when transmitting large current.

[0052] Further, the thickness of the substrate portion 31 in the height direction is large, and the thickness of the protruding plate 35 in the height direction is small, so as to ensure the step difference and avoid the problem of weakening the structural strength of the butt joint column 12 due to the opening of the mounting groove 127 with too large height.

[0053] The locking piece 3 also has at least one pair of buckle arms 36 which are separately arranged on both sides thereof to be buckled with the insulating body 1, and the buckle arms 36 are covered by the substrate portion 31 in the height direction. The buckle arms 36 are inserted into the buckle groove 113 upwardly and are buckled with the buckle protrusions 1131 arranged in the buckle groove 113, and the buckle protrusions 1131 are exposed forwardly from the slot 114 at the buckle position of the buckle arms 36.

[0054] As shown in the first embodiment of the utility model electric connector 100, Figure 12 As shown in the second embodiment of the utility model electric connector 100, the electric connector 100 comprises an insulating body 1, a conductive terminal 2 fixed in the insulating body 1 and a locking piece 3, and the basic structure and assembly relationship of the insulating body 1, the conductive terminal 2 and the locking piece 3 are the same as those in the first embodiment, and the difference is only that in the second embodiment, the locking piece 3 of the electric connector 100 does not have a protruding plate located on the front side of the substrate portion 31.

[0055] In addition, as shown in the utility model, Figure 1 、 Figures 3 to 4 and Figures 8 to 9 In the utility model, the electric connector 100 also has a buckle piece 4 assembled on the insulating body 1, and the buckle piece 4 and the locking piece 3 are separately arranged on both sides of the insulating body 1 in the height direction, and in the embodiment, the buckle piece 4 is arranged on the upper side of the insulating body 1, and the locking piece 3 is arranged on the lower side of the insulating body 1. In the utility model, the buckle piece 4 is used to cooperate with the locking portion 16 of the electric connector 100 to realize locking and unlocking.

[0056] The electric connector 100 sets the base plate part 31 as a flat plate and covers the base part 11 in the outer contour, which not only guarantees the structural strength of the locking part 3, avoids the problem of weakening the structural strength of the locking part 3 due to the slotting on the base plate part 31, but also can mask the base part 11 to ensure the safety of the electrically connected part; at the same time, the stop convex part 32 formed by extending from the base plate part is used to realize the secondary locking of the conductive terminal 2, prevent it from withdrawing the insulating body 1, and further ensure the stability of the electrical connection.

[0057] It should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be combined appropriately to form other embodiments that those skilled in the art can understand.

[0058] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit it, although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. An electrical connector comprising an insulating body, a plurality of conductive terminals and a locking member, the insulating body having a base portion, a plurality of mating posts formed forwardly from the base portion, the plurality of mating posts being arranged in a transverse direction, the conductive terminals being secured within corresponding mating posts, the locking member being secured to the insulating body to stop the conductive terminals; characterized in that: The locking member has a base plate part and a plurality of stop protrusions extending from the base plate part, the base plate part is flat and covers the base plate part in its outer contour, and the stop protrusions are inserted into corresponding slots on the insulating body to stop the conductive terminals.

2. The electrical connector of claim 1, wherein: The slots are formed on the base plate part and communicate with corresponding connecting channels on the corresponding connecting columns.

3. The electrical connector of claim 1, wherein: The locking member also has a plurality of spacing parts extending from the base plate part, the spacing parts and the stop protrusions have the same protruding direction and are alternately arranged in the lateral direction, the base plate part has a receiving groove between two adjacent connecting columns in the lateral direction, and the spacing parts are inserted into the corresponding receiving grooves to protrude between the two adjacent conductive terminals.

4. The electrical connector of claim 3, wherein: Each of the receiving grooves extends in the height direction, and the conductive terminals are located in the extension range of the adjacent receiving grooves in the height direction.

5. The electrical connector of claim 3, wherein: The stop protrusions are located in the extension range of the spacing parts in the front-rear direction.

6. The electrical connector of claim 1, wherein: The locking member also has a protruding plate located on the front side of the base plate part, and the connecting column has a mounting groove for accommodating the protruding plate.

7. The electrical connector of claim 6, wherein: When the locking member is not completely inserted into the insulating body, the protruding plate is at least partially exposed outside the mounting groove in the height direction to stop the connecting connector.

8. The electrical connector of claim 6, wherein: When the locking member is completely inserted into the insulating body, the lower surface of the protruding plate is not lower than the lower surface of the connecting column.

9. The electrical connector of claim 6, wherein: The protruding plate and the base plate part have a step in the height direction.

10. The electrical connector of any one of claims 1 to 9, wherein: The locking member also has at least one pair of buckle arms arranged on both sides thereof to be locked with the insulating body, and the buckle arms are covered by the base plate part in the height direction.

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