CN202712469U - Electric connector capable of crimping cable and assembly thereof - Google Patents

Abstract

The utility model relates to an electric connector capable of crimping cables. The electric connector comprises a housing and conducting plates. The conducting plates are provided with conductive bands, and the conductive bands are provided with raised contact portions. A front end of the housing is provided with plug tongues, and the conducting plates are solidly disposed on the corresponding plug tongues. The plug tongues are provided with limiting blocks which are in a same direction with a raised direction of the conductive band on the plug tongues and are depart from a side of the corresponding plug tongues, and a direction between the limiting block and the plug tongue is smaller than that between a top of the contact portion and the corresponding plug tongue. The housing is formed by a base and a cover plate fastening with each other in an up-down manner. The conducting plates are pressed and fixed between the base and the cover plate of the housing. Rear ends of the conducting plates are provided with wire sleeves which are disposed between the base and the cover plate of the housing. Compression amount of the conductive bands can be defined through the limiting blocks, so that compression amount of the conductive bands can be preset on condition that the electric connector is in reliable contact with a contact portion of an adapter connector, thereby preventing a problem of fatigue deformation of the conductive bands from occurring and solving a problem that the conductive bands are easy to fatigue and deform in operation.

Description

Electrical connectors for crimpable cables and components thereof

technical field

The utility model relates to the field of electrical connectors, in particular to an electrical connector capable of crimping cables and components thereof.

Background technique

Conductive strip is a common contact in electrical connectors. For example, Chinese patents with patent numbers 022253334.2, 2007201483866, 2005200010512, 2006200029547 and 2008201380525 all record related technologies. As the name suggests, the conductive strip is strip-shaped, and its two There is a protruding contact part between the ends, the contact part is used to make electrical contact with the corresponding contact piece of the matching connector when the corresponding electrical connector is working, and the contact part is elastic during the contact with the matching connector Deformation, so as to tighten the contact with it in electrical contact, to ensure the reliability of the contact; among the current electrical connectors, the conductive strip is used as a hole contact, that is, it is assembled in the shell of the corresponding electrical connector. There are multiple sockets arranged around the center line of the socket, which leads to some problems. First, the elastic deformation of the conductive strip and the matching contact piece is not easy to control. If the elastic deformation is too small, the It is very easy to cause poor contact and reduce the reliability of the circuit. In addition, because the conductive strip also needs to bear the role of limiting the contact with it to a certain extent, that is, to prevent the swing of the contact with it. This also makes the elastic deformation of the conductive strip too small to meet the requirements to a certain extent; therefore, the elastic deformation of the conductive strip is generally designed to be large, which on the one hand will increase the required when the electrical connector is separated. Pulling force, on the other hand, will cause fatigue deformation of the conductive strip, making it impossible to reset, and this situation will also lead to the occurrence of poor contact. In addition, the wiring process of the conductive strips in the prior art is also extremely complicated, and there is a problem of low wiring efficiency.

Contents of the invention

The purpose of the utility model is to provide an electrical connector capable of crimping cables, so as to solve the problem that the conductive belt is easily fatigued and deformed during the working process.

At the same time, the purpose of the utility model is also to provide an electrical connector assembly using the electrical connector of the above-mentioned crimpable cable.

In order to solve the above problems, the electric connector of the utility model that can be crimped cables adopts the following technical scheme: the electric connector that can be crimped cables includes a shell and a conductive sheet, the front end of the shell is used as the plug-in end, and the conductive sheet is provided with a There is a conductive strip extending along the front and rear directions, and there is a curved and raised contact portion between the front and rear ends of the conductive strip for electrical contact with the contact piece of the adapter connector. The front end of the housing is provided with a The plug tongue of the connector, the conductive sheet is fixed on the corresponding plug tongue, and the plug tongue is provided with a limit block for limiting the elastic deformation of the corresponding conductive strip and the adapter connector. The limit block on the tongue is in the same direction as the conductive strip on the tongue, and the distance between the side of the limit block away from the corresponding tongue and the tongue is smaller than the distance between the top of the contact part and the corresponding tongue The distance between; the housing is formed by buckling the base and the cover up and down, at least one of the base and the cover is provided with the tongue, and the conductive sheet is pressed and fixed on the base and the cover of the housing Between the plates, the rear end of the conductive sheet has a crimping sleeve, and the crimping sleeve is arranged between the bottom plate and the cover plate of the housing.

A latch for locking the two together is provided between the cover plate and the base of the housing. the

The housing is provided with a positioning block for preventing the conductive sheet from moving.

The shell is provided with claws, and the claws are fixed on the shell through elastic vertical walls arranged between the two ends thereof. Claw part, the claw part is constituted by a protrusion arranged on the side of the elastic claw close to the housing; the rear end of the elastic claw has a pressing part for pressing to make the front end open.

There are at least two conductive sheets, the contact portion of the conductive strip of one of the adjacent two conductive sheets protrudes upwards, and the contact portion of the conductive strip of the other protrudes downward.

The electrical connector assembly of the utility model adopts the following technical solutions: the electrical connector assembly is composed of a plug and a socket with the front end as the insertion end, the plug includes a plug housing and a plug contact, the socket includes a socket housing, and the socket housing It has an insertion channel for plug insertion and a socket contact is provided in the insertion channel. The plug contact is a conductive sheet, and the conductive sheet is provided with a conductive strip extending in the front and rear directions. There is a curved bulge between the front and rear ends of the conductive strip. The contact portion for electrical contact with the socket contact, the front end of the plug housing is provided with a tongue for plugging into the socket, the conductive sheet is fixed on the corresponding tongue, and the tongue is provided for limiting The limit block of the elastic deformation when the corresponding conductive strip is plugged into the socket, the limit block on the tongue is in the same direction as the conductive strip on the tongue, and the limit block is away from the side of the corresponding tongue. The distance between the side and the tang is smaller than the distance between the top of the contact part and the corresponding tang; The tongue and the conductive sheet are press-fitted and fixed between the base and the cover of the plug housing, the rear end of the conductive sheet has a crimping sleeve, and the crimping sleeve is arranged between the bottom plate and the cover of the plug housing between.

A latch for locking the two together is provided between the cover plate and the base of the plug housing.

The plug housing is provided with a positioning block for preventing the conductive sheet from moving.

The plug housing is provided with elastic claws, which are fixed on the plug housing through elastic vertical walls arranged between its two ends. The claw part is composed of a protrusion on the side of the claw close to the plug housing; the rear end of the claw has a pressing part for pressing to open the front end.

There are at least two conductive sheets, the contact portion of the conductive strip of one of the adjacent two conductive sheets protrudes upwards, and the contact portion of the conductive strip of the other protrudes downward.

Because the electrical connector of the utility model that can be crimped cables is provided with its conductive strip on a conductive sheet, and the conductive sheet is arranged on the plug tongue at the front end of the housing, and the plug tongue is provided with the above-mentioned limit block, the position limit The distance between the side of the block facing away from the housing and the housing is smaller than the distance between the top of the contact portion and the housing, therefore, during use, when the electrical connector is mated with the mating connector, it can The compression amount of the conductive strip is limited by the limit block, so that the compression amount of the conductive strip can be preset under the premise that it is in reliable contact with the contact piece of the adapter connector, preventing the occurrence of fatigue deformation of the conductive strip, and solving the problem The conductive strip is prone to fatigue deformation during the working process; in addition, the restriction on the compression of the conductive strip can also control the pull-out force when the electrical connector is separated from the matching connector within a reasonable range, and solve its electrical problem. The problem of the large pull-out force of the connector; in addition, the shell is set as a split structure formed by fastening the cover plate and the base, and a crimping sleeve is provided at the rear end of the conductive sheet, so that the shell can be easily disassembled and assembled in the applicable occasion body, and then crimp the wires with a crimping sleeve to realize quick wiring on site.

Furthermore, the positioning block can prevent the conductive sheet from moving during the working process, thereby eliminating the problem of poor contact caused by the conductive sheet moving; the claw can realize the connection between the electrical connector and the matching connector. The in-line plug-in and pull-out between the two adjacent conductive sheets is fast and convenient, making the electrical connector suitable for occasions that require frequent plugging and unplugging; multiple conductive sheets and to meet the needs of different transmission power, the conductive strip of one of the adjacent two conductive sheets The contact part of the one protrudes upwards, and the contact part of the other conductive strip protrudes downwards, so that the electrical connector can be evenly stressed and inserted and pulled out softly.

Description of drawings

Fig. 1 is a schematic structural view of Embodiment 1 of an electrical connector capable of crimping cables of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the left view of Fig. 1;

Fig. 4 is the right view of Fig. 1;

Fig. 5 is an exploded view of Embodiment 1 of an electrical connector capable of crimping a cable of the present invention;

6 is a schematic structural view of the plug of Embodiment 1 of the electrical connector assembly of the present invention;

Figure 7 is a top view of Figure 6;

Fig. 8 is the left view of Fig. 6;

Fig. 9 is the right view of Fig. 6;

Fig. 10 is an exploded view of the plug of Embodiment 1 of the electrical connector assembly of the present invention;

Fig. 11 is a schematic structural view of the socket of Embodiment 1 of the electrical connector assembly of the present invention;

Fig. 12 is a right side view (with section) of Fig. 11 .

Detailed ways

Embodiment 1 of the electrical connector capable of crimping cables of the present utility model, as shown in Fig. 12 is fastened up and down. When the cover plate 11 and the base 12 are fastened together, they are firstly fastened by a lock provided between the two. The structure and working principle of the lock are prior art and will not be described here. The plate and the base are initially locked by the lock and then further fixed by screws 13. The front end of the cover plate 11 and the base 12 is respectively provided with a tongue 14 extending forward, and the tongues on the cover plate 11 and the base 12 are respectively fixed. A conductive sheet 15 is provided, and two conductive sheets are arranged on the left and the right. The front end of the conductive sheet 15, that is, the part on the corresponding tongue is provided with a conductive strip 15-1, and the conductive strip 15-1 extends along the front and rear directions. And there is a curved and raised contact part between the front and rear ends, the contact part is used to contact the contact piece of the matching connector when the electrical connector is plugged into the matching connector, so as to complete the transmission of electric energy; The contact portion of the conductive strip on the tongue at the front end of the plate 11 bulges upwards, and the conductive strip on the tongue of the base bulges downward, and the tongues 14 are respectively provided with limit blocks for limiting the elastic deformation of the corresponding conductive strip 16. The distance between the side of the limit block 16 away from the tongue where it is located and the distance between the tongue is smaller than the distance between the top of the contact part of the corresponding conductive sheet and the tongue, so that on the one hand, it can be elastic deformation of the conductive strip To provide a certain space, on the other hand, the deformation of the conductive band will not be too large and cannot be reset. When designing, the distance L between the sides of the limit blocks on the two tangs that are away from their respective tangs It is equal to the size of the socket of the matching connector in the corresponding direction, so that the limit block 16 can be fully supported, and it is not necessary to be positioned by the conductive tape to prevent the gap between the electrical connector and the matching connector. Relative displacement occurs in the up and down direction, so that the conductive strip, as a full-time conductive part, does not bear any other force except for the contact pre-tightening force with the contact piece of the mating connector, which also slows down on the other hand. Damage to the conductive strip; the rear end of the conductive sheet 15 extends backward and enters between the cover plate 11 and the base 12 of the housing, and the conductive sheet 15 is fixed by the extrusion between the cover plate and the base of the housing At the same time, in order to prevent the conductive sheet 15 from moving in the housing, positioning blocks 17 are respectively provided on the plug tongues. In this embodiment, there are two positioning blocks 17 on each plug tongue, and each plug tongue has two positioning blocks 17. The two positioning blocks on the tongue are respectively located on the left and right sides of the conductive sheet on the tongue and are engaged with the grooves on the conductive sheet. In addition, the rear ends of the conductive sheet 15 are respectively provided with crimping sleeves 18, and the crimping sleeves 18 is used for crimping cables. In use, the screw 13 can be loosened first to separate the cover plate from the base, and then the corresponding wire can be pressed through the crimping sleeve 18 to complete the wiring. It is suitable for on-site wiring and is easy to operate fast. The lower side of the casing, that is, the outer surface of the base is provided with an elastic vertical wall 19 and is provided with an elastic claw 20 by this elastic vertical wall 19. The elastic vertical wall 19 is located at the position between the front and rear ends of the elastic claw 20, and its front end faces The front end of the casing is overhanging and has a claw portion 20-1, and the claw portion of the bullet claw is formed by a projection on the side close to the casing, and the rear side of the projection (that is, the claw portion) is in contact with the upper surface of the bullet claw. There is an included angle of 90° between the corresponding positions on the side, that is, the claw does not form a barbed structure, which makes it impossible to separate the claw and the adapter connector. The front side of the claw 20-1 and the upper device There is a guide surface 20-2, which is a slope that is gradually inclined upward from front to back, and the guide surface 20-2 is used to guide the corresponding structure on the adapter connector to the claw portion of the claw to be caught by the claw; The body is also provided with a housing limit post 21 for limiting the compression amount of the front end of the claw when it moves closer to the housing. distance, because the operator will habitually hold the housing when holding the electrical connector and the mating connector, the housing limit post can prevent the claw from being compressed too much when the operator pinches the front end of the claw. The adapter connector cannot be "hooked" to prevent the occurrence of locking failure; the rear end of the claw 20 has a pressing part for manual pressing and a claw limit post is provided on the side of the pressing part close to the housing 22. The claw limit post 22 is used to limit the minimum distance between the rear end of the claw and the casing when it moves closer to the casing, so as to prevent the elastic vertical wall from being broken due to excessive deformation. When mating with the mating connector, you can hold the rear end of the housing, and the claws will automatically open under the pressure of the corresponding structure on the mating connector. When the two are locked on the adapter connector and separated from the adapter connector, the rear end of the elastic claw can be pinched, so that the elastic vertical wall is elastically bent, forcing the elastic claw to open, thereby completing the unlocking. At this time, only The housing needs to be pulled backwards to separate from the mating connector.

In other embodiments of the electrical connector that can be crimped cables of the present invention, the number of conductive sheets described in Embodiment 1 of the above-mentioned electrical connector that can be crimped cables can be more than one, when the conductive sheet When the number is more than two, the contact portion of the conductive strip of one of the adjacent two conductive sheets can be protruded upwards, and the contact portion of the other conductive strip can be protruded downward, so that the electrical connector Uniform force, soft insertion and removal.

Embodiment 1 of the electrical connector assembly of the present utility model, as shown in Fig. 6-12, is composed of a plug and a socket, wherein each of the plug and the socket has a front end as a plugging end.

The structure of the plug is the same as that of Embodiment 1 of the above-mentioned electrical connector that can be crimped to the cable, as shown in Figure 6-10, including an insulating plug shell, which is formed by buckling the cover plate 31 and the base 32 , when the cover plate 31 and the base 32 are fastened together, they are first fastened by a lock provided between the two. After the preliminary locking, the screw 33 is further fixed. The front end of the cover plate 31 and the base 32 is respectively provided with a tongue 34 extending forward. Two conductive sheets are arranged on the left and right, and the front end of the conductive sheet 35, that is, the part on the corresponding tongue, is provided with a conductive strip 35-1, and the conductive strip 35-1 extends along the front and rear directions and between the front and rear ends There is a curved and raised contact portion between them, the contact portion is used to contact the contact piece of the socket when the electrical connector is plugged into the socket, so as to complete the transmission of electric energy; the contact of the conductive strip on the tongue at the front end of the cover plate 31 The upper part is raised upwards, and the conductive strips on the tongues of the base are raised downwards. The tongues 34 are respectively provided with limit blocks 36 for limiting the elastic deformation of the corresponding conductive strips, and the limit blocks 36 are away from the tongues where they are located. The distance between one side of the conductive strip and the tongue is smaller than the distance between the top of the contact part of the corresponding conductive sheet and the tongue, so that a certain space can be provided for the elastic deformation of the conductive strip on the one hand, and on the other hand, it will not conduct electricity. The deformation of the belt is too large to be reset. When designing, the distance L between the sides of the limit blocks on the two tangs away from their respective tangs is equal to the size of the insertion channel of the socket in the corresponding direction. , so that the limit block 36 can be fully supported, and it is no longer necessary to rely on the conductive tape for positioning to prevent the relative displacement between the electrical connector and the socket in the up and down direction, so that the conductive tape can be used as a full-time conductive part. In addition to the contact pre-tightening force between the contacts of the socket and the socket, it does not bear any other force, which also slows down the damage of the conductive strip on the other hand; the rear end of the conductive sheet 35 extends backward and enters the plug housing. Between the cover plate 31 and the base 32, the conductive sheet 35 is fixed by pressing between the cover plate and the base of the plug housing. At the same time, in order to prevent the conductive sheet 15 from moving in the plug housing , the tongues are also respectively provided with positioning blocks 37, in the present embodiment, there are two positioning blocks 37 on each tongue, and the two positioning blocks on each tongue are respectively located on the conductive sheet on the tongue. The left and right sides are matched with the grooves on the conductive sheet. In addition, the rear ends of the conductive sheet 35 are provided with crimping sleeves 38 respectively. The cover plate and the base are separated, and then the corresponding wires are pressed through the crimping sleeve 38 to complete the wiring, which is suitable for on-site wiring and is convenient and quick to operate. The lower side of the plug housing, that is, the outer surface of the base is provided with an elastic vertical wall 39 and is provided with an elastic claw 40 through the elastic vertical wall 39. The elastic vertical wall 39 is arranged at the position between the front and rear ends of the elastic claw 40. It is suspended to the front end of the plug housing and has a claw portion 40-1. The claw portion of the elastic claw is formed by a protrusion on the side close to the plug housing. There is an included angle of 90° between the corresponding positions on the upper side of the claw, that is, the claw does not form a barb structure, which makes it impossible for the claw to be separated when it is engaged with the socket. The front side of the claw 40-1 is connected to the upper surface There is a guide surface 40-2, which is a slope that gradually slopes upward from front to back, and the guide surface 40-2 is used to guide the corresponding structure on the socket to the claw of the claw to be caught by the claw; Also be provided with the plug housing stopper post 41 that is used for limiting the compression amount when the front end of the claw draws closer to the plug housing, the plug housing stopper post 41 can limit the gap between the claw and the plug housing when it draws closer to the plug housing. The shortest distance between them, because the operator will habitually hold the plug shell when holding the electrical connector and the socket, the plug shell limit post can prevent the claw from being over-compressed when the operator pinches the front end of the claw And cause can not " hang up " socket, prevent the generation of the situation of locking failure; , The claw limit post 42 is used to limit the minimum distance between the rear end of the claw and the plug housing when the rear end of the claw is close to the plug housing, so as to prevent the elastic wall from being broken due to excessive deformation. When plugged into the socket, the rear end of the plug shell can be held, and the claws will automatically open under the pressure of the corresponding structure on the socket. When it is locked, when it is separated from the socket, you can pinch the rear end of the elastic claw, so that the elastic vertical wall is elastically bent, forcing the elastic claw to open, so as to complete the unlocking. At this time, you only need to pull the plug housing backward to realize Separation from socket.

The structure of the socket is shown in Figures 11-12, including an insulating socket housing 51. The socket housing 51 is provided with an overlapping structure for engaging with the claws. In this embodiment, the overlapping structure is located on the socket housing. The convex portion 51-1 on the lower side of the body, the convex portion 51-1 near the front end of the socket housing 51 is provided with a convex portion that is gradually inclined downward from the front to the rear in the front and rear direction of the socket housing 51. The part guide surface 51-2, the role of the convex part guide surface on the claw part guide surface is the same, so it will not be repeated here; the socket housing is provided with an insertion channel for the plug conductive sheet and the tongue to be inserted, and it is inserted in the socket. A socket contact piece 52 is provided in the connection channel, and the socket contact piece 52 is made of copper plate, so that a large current can be transmitted, specifically up to 150A.

In other embodiments of the electrical connector assembly of the present utility model, the number of conductive sheets of the plug in the first embodiment of the above-mentioned large electrical connector assembly can be more than one, when the number of conductive sheets is more than two , the contact portion of the conductive strip of one of the adjacent two conductive sheets can be protruded upwards, and the contact portion of the other conductive strip can be protruded downward, so that the electrical connector can be evenly stressed and plugged in and out softly .

Claims (10)

1. An electrical connector capable of crimping cables, which is characterized in that it includes a housing and a conductive sheet. There is a curved and protruding contact portion between them for electrical contact with the contact piece of the matching connector. The front end of the housing is provided with a tongue for plugging into the matching connector, and the conductive sheet is fixed on the corresponding On the tongue, the tongue is provided with a limit block for limiting the amount of elastic deformation when the corresponding conductive strip is plugged into the adapter connector, and the limit block on the tongue is in contact with the The conductive strips have the same raised direction and the distance between the side of the limit block away from the corresponding tongue and the distance between the top of the contact part and the corresponding tongue is smaller; the housing is buckled up and down by the base and the cover plate At least one of the base and the cover is provided with the tongue, the conductive sheet is press-fitted and fixed between the base and the cover of the housing, the rear end of the conductive sheet has a crimping sleeve, and the crimping The shroud is arranged between the bottom plate and the cover plate of the housing. 2 . The electrical connector capable of crimping cables according to claim 1 , wherein a latch for locking the two together is provided between the cover plate and the base of the housing. 3 . 3 . The electrical connector capable of crimping cables according to claim 1 , wherein a positioning block for preventing the conductive sheet from moving is provided on the housing. 4 . 4. The electrical connector capable of crimping cables according to claim 1, wherein the housing is provided with a claw, and the claw is fixed on the housing through an elastic vertical wall arranged between its two ends. On the upper part, the front end of the elastic claw hangs forward and has a claw portion for engaging with the adapter connector. The claw portion is composed of a protrusion on the side of the elastic claw close to the housing; The end has a pressing portion for pressing to open the front end. 5. The electrical connector for crimpable cables according to any one of claims 1-4, characterized in that there are at least two conductive sheets, and the contact of the conductive strip of one of the adjacent two conductive sheets One part protrudes upwards, and the contact part of the other conductive strip protrudes downwards. 6. The electrical connector assembly is composed of a plug and a socket with the front end as the plug-in end. The plug includes a plug housing and a plug contact, and the socket includes a socket housing. A socket contact is provided in the connection channel, and the feature is that the plug contact is a conductive sheet, and the conductive sheet is provided with a conductive strip extending along the front and rear directions. The contact part of the electrical contact, the front end of the plug housing is provided with a tongue for plugging into the socket, the conductive sheet is fixed on the corresponding tongue, and the tongue is provided with a conductive strip for defining the corresponding The limit block of the elastic deformation amount when connected, the limit block on the tongue is in the same direction as the conductive strip on the tongue, and the side of the limit block away from the corresponding tongue and the gap between the tongue The distance is smaller than the distance between the top of the contact part and the corresponding tongue; the plug housing is formed by buckling the base and the cover plate up and down, and at least one of the base and the cover plate is provided with the tongue, the The conductive sheet is press-fitted and fixed between the base of the plug housing and the cover plate, and the rear end of the conductive sheet has a crimping sleeve, and the crimping sleeve is arranged between the bottom plate and the cover plate of the plug housing. 7. The electrical connector assembly according to claim 6, wherein a latch for locking the two together is provided between the cover and the base of the plug housing. 8. The electrical connector assembly according to claim 6, wherein the plug housing is provided with a positioning block for preventing the conductive strip from moving. 9. The electrical connector assembly according to claim 6, wherein the plug housing is provided with a claw, and the claw is fixed on the plug housing through an elastic vertical wall arranged between its two ends, The front end of the elastic claw is overhanging forward and has a claw portion for engaging with the socket, and the claw portion is formed by a protrusion arranged on the side of the elastic claw close to the plug housing; the rear end of the elastic claw has a A pressing part to open the front end. 10. The electrical connector assembly according to any one of claims 6-9, wherein there are at least two conductive sheets, and the contact portion of the conductive strip of one of the adjacent two conductive sheets protrudes upwards , the contact portion of the other conductive strip protrudes downward.

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