Electric connector

Abstract

The utility model discloses an electric connector, which relates to the technical field of connectors and comprises a wire end electric connector and a secondary locking component. A terminal mounting cavity is formed in the wire end electric connector, the terminal mounting cavity is provided with a plurality of terminal sub-mounting cavities which are separated by partition plates, and each terminal sub-mounting cavity is provided with terminal through holes which are communicated with one another; the number of the limiting ribs is equal to that of the terminal mounting cavities, the limiting ribs correspond to the terminal mounting cavities one to one, a locking boss matched with the corresponding limiting rib in an inserted mode is arranged in each terminal mounting cavity, and first insertion protrusions protruding out of the surface are arranged on the two sides of each limiting rib. The locking boss is provided with a locking insertion groove for the first insertion protrusion to be matched in an inserted mode, and one end of each limiting rib is provided with a first guide. According to the utility model, the arrangement of the secondary locking part not only can secondarily lock the terminal part so as to ensure the correct assembly of the terminal part, but also cannot cause that the terminal part is difficult to be completely locked from the wire end electric connector.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, specifically relates to an electric connector. BACKGROUND

[0002] With the dramatic increase in the production of new energy vehicles, the process of intelligent upgrading of vehicles is also constantly advancing, and the electric connector of the key component plays an important role as the hub of signal or energy transmission. Currently, the electric connector after assembly is required to have excellent contact performance.

[0003] The wire end electric connector usually includes an insulating shell for inserting and assembling the terminal component, so that a plug-in assembly for assembling the terminal component is arranged in the insulating shell. In the assembly process of the terminal component and the wire end electric connector, the plug-in assembly cannot avoid the incorrect assembly of the terminal component. If the terminal component cannot be correctly assembled, it will cause poor conduction of the electric connector and reduce the product yield. SUMMARY

[0004] Therefore, the utility model embodiment provides an electric connector to solve the problem that the wire end electric connector cannot avoid the incorrect assembly of the terminal component.

[0005] According to a first aspect, the utility model embodiment provides an electric connector, comprising:

[0006] The wire end electric connector and the secondary locking component in plug-in cooperation with the wire end electric connector;

[0007] The wire end electric connector is provided with a terminal mounting cavity for the insertion of the terminal component. The terminal mounting cavity has a plurality of terminal sub-mounting cavities. The different terminal sub-mounting cavities are separated by a partition. Each terminal sub-mounting cavity is provided with a terminal through hole in communication. The terminal through hole is for the front end, especially the end, of the terminal component to pass through;

[0008] The secondary locking component is provided with a limiting rib equal in number to the terminal sub-mounting cavities and in one-to-one correspondence. Each terminal sub-mounting cavity is provided with a locking boss in plug-in cooperation with the corresponding limiting rib. The limiting rib is provided with a first plug-in protrusion on the two sides of the protruding surface. The two first plug-in protrusions are located on the same side surface of the limiting rib. The locking boss is provided with a locking slot for the plug-in cooperation of the first plug-in protrusion. One end of each limiting rib is provided with a first guide.

[0009] In combination with the first aspect, in the first embodiment of the first aspect, the wire end electric connector includes a shell, a terminal mounting cavity arranged on the shell, and an elastic pressing part arranged on the shell. The elastic pressing part is used for plug-in cooperation with the plug-in component arranged on the board end electric connector.

[0010] In combination with the first aspect and the first implementation, in a second implementation of the first aspect, the elastic pressing part comprises a connecting root connected with the shell and a pressing part arranged on the connecting root, one end of the connecting root is connected with the shell, the other end of the connecting root is connected with the pressing part, and the pressing part is inserted and matched with the plug-in part arranged on the board end electrical connector.

[0011] In combination with the first aspect and the second implementation, in a third implementation of the first aspect, one end of the connecting root is provided with a slope surface.

[0012] In combination with the first aspect and the second implementation, in a fourth implementation of the first aspect, a plurality of steps are arranged on the connecting root, and the steps are lifted step by step.

[0013] In combination with the first aspect and the first implementation, in a fifth implementation of the first aspect, a second plug-in protrusion inserted and matched with the terminal part is arranged in each terminal sub-mounting cavity.

[0014] In combination with the first aspect and the first implementation, in a sixth implementation of the first aspect, a plurality of third plug-in protrusions are arranged on the shell, and the third plug-in protrusions are used for being inserted and matched with the plug-in part arranged on the board end electrical connector.

[0015] In combination with the first aspect and the first implementation, in a seventh implementation of the first aspect, the secondary locking part comprises a main beam body, a plurality of limiting ribs arranged on the main beam body, and two clamping elastic arms arranged on both sides of the main beam body, all the limiting ribs are arranged between the two clamping elastic arms, a fourth plug-in protrusion is arranged on the shell, and a plug-in hole inserted and matched with the fourth plug-in protrusion is arranged on the clamping elastic arm.

[0016] In combination with the first aspect and the seventh implementation, in an eighth implementation of the first aspect, one end of the clamping elastic arm is provided with a second guide surface matched with the fourth plug-in protrusion.

[0017] In combination with the first aspect and the seventh implementation, in a ninth implementation of the first aspect, the elastic pressing part and the secondary locking part are both made of a material with elasticity.

[0018] The utility model discloses an electric connector, be equipped with the limit rib with the equal number and one -to -one corresponding of terminal sub mounting cavity on secondary locking part, and the corresponding, every terminal sub mounting cavity all is equipped with the locking boss of the plug -in cooperation with corresponding limit rib, realize the insertion and plug -in cooperation of secondary locking part front -back direction, and the terminal part of secondary locking part carries out interference positioning in line end electric connector, secondary locking part will carry out secondary locking assembly, be equipped with the first guide surface on one end of every limit rib, the first guide surface can make the rounded corner processing or be inclined plane processing, make the insertion of terminal part more smooth through the first guide surface, the setting of secondary locking part can lock terminal part twice, to this end, ensure the correct assembly of terminal part, and the plug -in cooperation mode makes when needing to maintain terminal part in later period, the plug -in of secondary locking part from line end electric connector is also more quick and convenient, can not lead to terminal part to be difficult to lock from line end electric connector completely. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, below will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0020] Among them:

[0021] Fig. 1 One of the structure schematic views of the line end electric connector and the secondary locking part in the electric connector provided by the utility model is shown;

[0022] Fig. 2 The second structure schematic view of the line end electric connector and the secondary locking part in the electric connector provided by the utility model is shown;

[0023] Fig. 3 The third structure schematic view of the line end electric connector and the secondary locking part in the electric connector provided by the utility model is shown;

[0024] Fig. 4 One of the structure schematic views of the line end electric connector in the electric connector provided by the utility model is shown;

[0025] Fig. 5 The second structure schematic view of the line end electric connector in the electric connector provided by the utility model is shown;

[0026] Fig. 6 One of the structure schematic views of the secondary locking part in the electric connector provided by the utility model is shown;

[0027] Fig. 7The utility model discloses a structure diagram two of secondary locking part in electric connector is provided.

[0028] In the drawing: 10 - line end electric connector, 11 - shell, 12 - terminal installation cavity, 13 - terminal through -hole, 14 - second plug -in protrusion, 15 - locking boss, 16 - locking slot, 17 - elastic pressing part, 171 - connecting root, 172 - pressing part, 173 - slope, 174 - step, 18 - third plug -in protrusion, 19 - fourth plug -in protrusion, 20 - secondary locking part, 21 - main beam body, 22 - limiting rib, 23 - first guide surface, 24 - first plug -in protrusion, 25 - clamping elastic arm, 26 - plug -in hole, 27 - second guide surface. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without making the creative labor are within the protection scope of the utility model.

[0030] It should be noted that: similar signs and letters show similar items in the following drawings, therefore, once an item is defined in a drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", "third" and the like are only used for distinguishing description, and cannot be understood as indicating or implying relative importance.

[0031] In the description of the present application, it is also necessary to explain that, unless otherwise explicitly defined and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through the intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0032] With the dramatic increase in the production of new energy vehicles, the process of intelligent upgrading of vehicles is also constantly advancing, and the electric connector of the key component plays an important role as the hub of signal or energy transmission, and the electric connector after assembly is required to have excellent contact performance.

[0033] The wire end electrical connector generally comprises an insulating housing for inserting and assembling terminal components, so that a plug-in assembly for assembling the terminal components is arranged in the insulating housing. During the assembly of the terminal components and the wire end electrical connector, the plug-in assembly cannot avoid the incorrect assembly of the terminal components, and if the terminal components cannot be correctly assembled, the electrical conductivity of the electrical connector will be poor, and the product yield will be reduced.

[0034] To solve the above problems, an electrical connector is provided in the present specification, which aims to provide a new type of electrical connector that can solve the above problems. Please refer to Figs. 1 to 7 The electrical connector comprises:

[0035] The wire end electrical connector 10 and the secondary locking component 20 that is plugged with the wire end electrical connector 10, wherein the wire end electrical connector 10 is provided with a terminal mounting cavity 12 for inserting the terminal component, the terminal mounting cavity 12 has a plurality of terminal sub-mounting cavities, the different terminal sub-mounting cavities are separated by a partition plate, each terminal sub-mounting cavity is provided with a terminal through hole 13 that is arranged in communication with each other, and the terminal through hole 13 is used for the front end of the terminal component, especially the end, to pass through. The secondary locking component 20 is provided with a limiting rib 22 corresponding to the number of terminal sub-mounting cavities, and correspondingly, each terminal sub-mounting cavity is provided with a locking boss 15 that is plugged with the corresponding limiting rib 22, the limiting rib 22 is provided with a first plug-in protrusion 24 on both sides of the limiting rib 22, and the two first plug-in protrusions 24 are located on the same side surface of the limiting rib 22, the locking boss 15 is provided with a locking slot 16 for the plug-in cooperation of the first plug-in protrusion 24, and the plug-in cooperation of the first plug-in protrusion 24 and the locking slot 16 on the locking boss 15 realizes the insertion and plug-in cooperation of the secondary locking component 20 in the front and back directions. One end of each limiting rib 22 is provided with a first guide surface 23, the first guide surface 23 can be rounded or beveled, and the first guide surface 23 makes the insertion of the terminal component more smooth.

[0036] The secondary locking component 20 can lock the terminal component again, which ensures the correct assembly of the terminal component, and the plug-in cooperation makes it more convenient to plug and pull the secondary locking component 20 from the wire end electrical connector 10 when the terminal component needs to be maintained later, and the terminal component cannot be completely locked from the wire end electrical connector 10.

[0037] It can be understood that, since the terminal sub-mounting cavities are separated by a partition plate, gaps are provided between different limiting ribs 22 for inserting the partition plate.

[0038] In the embodiment, the number of the terminal sub-mounting cavities is determined according to the number of the conductive pins in the terminal components and the PINs in the board end electrical connector. For example, when the PINs in the board end electrical connector are four, the corresponding terminal sub-mounting cavities are also four, so that the PINs can be matched with the terminal components passing through the terminal through holes 13.

[0039] Specifically, the terminal sub-mounting cavities on the terminal mounting cavity 12 are arranged for the assembled terminal components to be inserted from the front and back directions, and after the terminal components are matched with the wire end electrical connector 10, the secondary locking components 20 are also inserted from the front and back directions, the secondary locking components 20 are matched with the limiting components arranged on the terminal components (for example, the limiting ribs 22 are used to press the limiting components), and the secondary locking components 20 are used to lock the terminal components after the matching, and the secondary locking components 20 are used to interfere with the positioning of the terminal components and the secondary locking assembly.

[0040] In the embodiment, the wire end electrical connector 10 specifically includes a housing 11, a terminal mounting cavity 12 arranged on the housing 11, and an elastic pressing part 17 arranged on the housing 11, the elastic pressing part 17 is used to be matched with the plug-in components (for example, elastic locks) arranged on the board end electrical connector. Through the plug-in matching of the elastic pressing part 17 and the plug-in components, the plug-in matching of the wire end electrical connector 10 and the board end electrical connector can be completed, and the elastic pressing part 17 with certain elasticity can avoid the wire end electrical connector 10 from being easily pulled out from the board end electrical connector due to friction.

[0041] Specifically, the elastic pressing part 17 includes a connecting root 171 connected with the housing 11 and a pressing part 172 arranged on the connecting root 171, one end of the connecting root 171 is connected with the housing 11, the other end of the connecting root 171 is connected with the pressing part 172, the pressing part 172 is matched with the plug-in components arranged on the board end electrical connector, and the entire elastic pressing part 17 has certain elasticity, so it can be matched with the plug-in components and realize the anti-backout function after the plug-in matching.

[0042] In order to better complete the plug-in matching, one end of the connecting root 171 is provided with a slope surface 173, the slope surface 173 can be arranged as an inclined surface, during the plug-in matching, the slope surface 173 will first contact with the plug-in components arranged on the board end electrical connector, through the arrangement of the slope surface 173, the plug-in matching of the wire end electrical connector 10 and the board end electrical connector is more smooth.

[0043] Similarly, in order to let the artificial terminal electrical connector 10 and the board end electrical connector assembly understand the specific assembly degree, a plurality of steps 174 are arranged on the connecting root 171, and the elastic pressing part 17 and the plug-in part are matched at different degrees and depths through the steps 174, so as to cope with different working conditions.

[0044] In the embodiment, the second plug-in protrusion 14 is arranged in each terminal sub-mounting cavity to be matched with the terminal part, the second plug-in protrusion 14 is arranged to interfere with the insertion position of the terminal part, and the terminal part is prevented from shaking greatly during the plug-in process and after the assembly is completed, so as to ensure the stability of the assembly.

[0045] In the embodiment, the third plug-in protrusion 18 is further arranged on the shell 11, and the third plug-in protrusion 18 is also used for being matched with the plug-in part (for example, an elastic lock) arranged on the board end electrical connector and can also have a certain anti-fumble effect.

[0046] Preferably, the third plug-in protrusion 18 is arranged beside the elastic pressing part 17.

[0047] In the embodiment, the secondary locking part 20 specifically includes a main beam body 21, a plurality of limiting ribs 22 arranged on the main beam body 21, and two clamping elastic arms 25 arranged on both sides of the main beam body 21, that is, one clamping elastic arm 25 is arranged on one side of the main beam body 21, and all the limiting ribs 22 are arranged between the two clamping elastic arms 25, the fourth plug-in protrusion 19 is arranged on the shell 11, the plug-in hole 26 matched with the fourth plug-in protrusion 19 is arranged on the clamping elastic arm 25, and the secondary locking part 20 is inserted and matched in the front and back directions through the plug-in hole 26 matched with the corresponding fourth plug-in protrusion 19 and the plug-in matching of the locking protrusion 15 and the locking slot 16 and the first plug-in protrusion 24.

[0048] Preferably, the second guide surface 27 matched with the fourth plug-in protrusion 19 is arranged at one end of the clamping elastic arm 25, and the second guide surface 27 can be processed (for example, be processed as an inclined surface) according to the end surface of the fourth plug-in protrusion 14, so that the plug-in process of the secondary locking part 20 and the wire end electrical connector 10 is smoother.

[0049] It should be noted that the elastic pressing part 17 and the secondary locking part 20 of the wire end electrical connector 10 can be made of a material with a certain elasticity, for example, a polyamide thermoplastic elastomer. In this way, the two clamping elastic arms 25 on both sides of the main beam body 21 can also clamp the shell 11 from the outside during the assembly process of the secondary locking part 20, so as to ensure the stability of the assembly process of the secondary locking part 20.

[0050] Specifically, in the assembly process, the secondary locking component 20 is continuously inserted by clamping the elastic arm 25 to contact and press the corresponding fourth plug-in protrusion 19, and the plug-in hole 26 on the clamping elastic arm 25 contacts and clamps the fourth plug-in protrusion 19 during the gradual insertion process, so that the secondary locking component 20 is prevented from easily falling off from the wire end electrical connector 10 due to friction, thereby achieving the anti-backout function. During the plug-in matching process, the locking protrusion 15 on the locking slot 16 is arranged to interfere with the insertion position of the limiting rib 22, i.e., the secondary locking component 20, and to prevent the secondary locking component 20 from shaking during the plug-in process and after the assembly is completed, thereby ensuring the stability of the installation.

[0051] The electrical connector of the utility model, through being equipped with the limiting rib 22 which is equal in number to the terminal sub-mounting cavities and one-to-one corresponding on the secondary locking component 20, corresponding, each terminal sub-mounting cavity is equipped with the locking protrusion 15 which is plug-in matched with the corresponding limiting rib 22, realizes the insertion and plug-in matching of the secondary locking component 20 in the front and back directions, and the secondary locking component 20 interferes with the positioning of the terminal component in the wire end electrical connector 10, and the secondary locking component will be assembled again, through being equipped with the first guide surface 23 on one end of each limiting rib 22, the first guide surface 23 can be rounded or beveled, the insertion of the terminal component is smoother through the first guide surface 23, the secondary locking component 20 can lock the terminal component again, thereby ensuring the correct assembly of the terminal component, and the plug-in matching mode makes the secondary locking component 20 more convenient to plug in and out of the wire end electrical connector 10 when the terminal component needs to be maintained later, and the terminal component cannot be completely locked from the wire end electrical connector 10.

[0052] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. An electrical connector, characterized in that, include: Electrical connector at the wire end and a secondary locking component that mates with the electrical connector at the wire end; The wire-end electrical connector is provided with a terminal mounting cavity for inserting terminal components. The terminal mounting cavity has several terminal sub-mounting cavities. Different terminal sub-mounting cavities are separated by partitions. Each terminal mounting cavity is provided with interconnected terminal through holes, which allow the front end, especially the end, of the terminal component to pass through. The secondary locking component is provided with limiting ribs that are equal in number and correspond one-to-one with the terminal mounting cavities. Each terminal mounting cavity is provided with a locking boss that is inserted and engaged with the corresponding limiting rib. The limiting ribs are provided with first insertion protrusions on both sides of the protruding surface, and the two first insertion protrusions are located on the same side surface of the limiting rib. The locking boss is provided with a locking slot for the first insertion protrusions to be inserted and engaged. Each limiting rib is provided with a first guide at one end.

2. The electrical connector according to claim 1, characterized in that, The wire-end electrical connector includes a housing, a terminal mounting cavity disposed on the housing, and an elastic pressing part disposed on the housing. The elastic pressing part is used to engage with the plugging component disposed on the board-end electrical connector.

3. The electrical connector according to claim 2, characterized in that, The elastic pressing part includes a connecting root connected to the housing and a pressing part disposed on the connecting root. One end of the connecting root is connected to the housing, and the other end of the connecting root is connected to the pressing part. The pressing part is inserted and engaged with a plug-in component disposed on the board-end electrical connector.

4. The electrical connector according to claim 3, characterized in that, One end of the connecting root has a slope.

5. The electrical connector according to claim 3, characterized in that, The connecting root has several progressively higher steps.

6. The electrical connector according to claim 2, characterized in that, Each terminal mounting cavity is provided with a second insertion protrusion that mates with the terminal component.

7. The electrical connector according to claim 2, characterized in that, The housing is provided with several third insertion protrusions, which are used to engage with the insertion components provided on the board-end electrical connector.

8. The electrical connector according to claim 2, characterized in that, The secondary locking component includes a main beam, several limiting ribs on the main beam, and two clamping spring arms on both sides of the main beam. All the limiting ribs are located between the two clamping spring arms. The housing is provided with a fourth insertion protrusion, and each clamping spring arm is provided with an insertion hole that engages with the fourth insertion protrusion.

9. The electrical connector according to claim 8, characterized in that, One end of the clamping spring arm is provided with a second guide surface that mates with the fourth insertion protrusion.

10. The electrical connector according to claim 8, characterized in that, Both the elastic pressing part and the secondary locking component are made of elastic materials.

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