CN212725780U

CN212725780U - Electric connector and CPA assembly thereof

Info

Publication number: CN212725780U
Application number: CN202021117205.5U
Authority: CN
Inventors: 焦志贺; 胡金科; 彭四乃
Original assignee: Lotes Guangzhou Co Ltd
Current assignee: Lotes Guangzhou Co Ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-16
Anticipated expiration: 2030-06-16

Abstract

The utility model discloses an electric connector, which is butted with a butting connector and comprises an insulating body, wherein a locking piece is arranged on the insulating body and comprises a locking part and a pressing part; the CPA assembly is connected to the locking piece or the insulating body in a sliding mode, comprises a base portion extending in the left-right direction, a locking arm and a reinforcing portion extending forwards from the base portion respectively, a connecting portion is connected with the front end of the locking arm and the reinforcing portion, an abdicating space is formed by the connecting portion and the locking arm in an enclosing mode, the locking arm and the reinforcing portion are located on the left side and the right side of the abdicating space respectively, the width of the reinforcing portion in the left-right direction is larger than that of the locking arm, a first limiting portion matched with the locking piece or the insulating body is arranged on one side, away from the abdicating space, of the locking arm, a stopping portion extends upwards from the base portion, and when the locking portion is interlocked with the insulating body or the butting connector, the stopping portion is stopped below the pressing portion, so that the locking portion can be kept in a locking.

Description

Electric connector and CPA assembly thereof

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electric connector and CPA subassembly thereof especially relate to an electric connector for car and CPA subassembly thereof.

[ background of the invention ]

An electrical connector having an insulative housing and a CPA assembly is known, the CPA assembly having a base and two resilient arms extending forwardly from the base, the two resilient arms latching with the insulative housing to secure the CPA assembly.

When the CPA assembly is assembled to the insulating body, the two elastic arms are pressed by the insulating body in the left-right direction to deform, the two elastic arms are both elongated elastic arms extending forwards from the base part, so the structural strength of the elastic arms is low, when the elastic arms are pressed by the insulating body, the two elastic arms are easily subjected to excessive deformation and even breakage due to stress, and the two elastic arms are easily deformed, so the CPA assembly is easily separated from the insulating body, the CPA assembly fails, and the secondary locking function of the electrical connector cannot be guaranteed, and the use of the electrical connector is affected.

Therefore, there is a need to design a new electrical connector and CPA assembly thereof to overcome the above problems.

[ Utility model ] content

An object of the utility model is to provide an extend a rib forward from the basal portion and link to each other with one side of connecting portion to strengthen the structural strength of CPA subassembly and prevent electric connector and CPA subassembly that CPA tripped.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an electric connector is used for being butted with a butting connector and comprises an insulating body, wherein a locking piece is arranged on the insulating body and comprises a locking part and a pressing part; a CPA assembly slidably connected to the latch member or the insulation body, the CPA assembly including a base portion extending in left and right directions, a latch arm and a reinforcement portion extending forward from the base portion, respectively, a connecting portion connecting a front end of the latch arm and the reinforcement portion, the connecting portion and the latch arm enclosing a space for abdicating, the latch arm and the reinforcement portion respectively located on left and right sides of the space for abdicating, the reinforcement portion having a width in left and right directions greater than that of the latch arm, a first limiting portion cooperating with the latch member or the insulation body being provided on a side of the latch arm away from the space for abdicating, the base portion extending upward to block a blocking portion, when the latch portion is interlocked with the insulation body or the mating connector, the blocking portion being blocked below the pressing portion, so that the locking portions maintain the locked state.

Further, the height of the stopper portion in the up-down direction is higher than the height of the lock arm and the reinforcement portion in the up-down direction.

Further, connecting portion certainly the basal portion extends forward earlier then towards the bending of locking arm extends, connecting portion with the locking arm and the basal portion encloses jointly and establishes and form all around confined the space of stepping down, connecting portion keep away from one side in the space of stepping down with the rib links to each other.

Furthermore, the locking piece is of a rocker structure and comprises two side plates and a cross beam connected with the two side plates, an accommodating groove penetrates through the cross beam along the front-back direction, the locking portion and the pressing portion are arranged on the top wall of the accommodating groove, the locking portion and the pressing portion are connected through a fulcrum portion, and the CPA assembly is inserted into the accommodating groove and can slide along the front-back direction.

Further, a first limit portion and a second limit portion are convexly formed on one side, away from the abdicating space, of the locking arm along the left-right direction, the first limit portion is located behind the second limit portion, a stop portion is convexly formed on the side wall of the accommodating groove, the stop portion is matched with the first limit portion to keep the CPA assembly at a final position, the locking portion and the insulation body or the butting connector keep a locking state, the CPA assembly slides backwards, the first limit portion crosses the stop portion and is located behind the stop portion, the stop portion is matched with the second limit portion to keep the CPA assembly at an initial position, and meanwhile, the pressing portion is pressed downwards to enable the locking portion to be disengaged from the insulation body or the butting connector.

Further, the reinforcing part and the upper surface of the connecting part are located at the same height, the reinforcing part and the upper surface of the connecting part form a first surface, the upper surface of the blocking part forms a second surface, the first surface is lower than the second surface, when the CPA assembly is located at an initial position, the pressing part can be pressed downwards to abut against the first surface, and when the CPA assembly is located at a final position, the second surface is blocked below the pressing part to prevent the pressing part from moving downwards.

Further, the first limiting portion and the second limiting portion are arranged in a staggered mode in the front-back direction, a first limiting face is arranged at the rear end of the first limiting portion and obliquely arranged with the side face of the locking arm, a second limiting face is arranged at the rear end of the second limiting portion and vertically arranged with the side face of the locking arm, a first blocking face is arranged at the front end of the blocking portion and obliquely arranged with the side wall of the accommodating groove, the first blocking face is matched with the first limiting face to keep the CPA assembly at the final position, a second blocking face is further arranged at the front end of the blocking portion and vertically arranged with the side wall of the accommodating groove, and the second blocking face is matched with the second limiting face to keep the CPA assembly at the initial position.

Further, the locking arm, the connecting portion and the reinforcing portion are provided with two, the two reinforcing portions are arranged side by side in the left-right direction, the connecting portion and the locking arm are sequentially arranged on the outer side of each reinforcing portion, the two reinforcing portions are respectively connected with the side faces of the two connecting portions, a guide groove is formed between the two reinforcing portions, a guide column is convexly arranged on the bottom wall of the accommodating groove, and the guide groove is matched with the guide column to assemble the CPA assembly to the accommodating groove.

Further, two the rib encloses jointly with two connecting portion and establishes and form a groove of stepping down, insulator includes a main part and equipment extremely a wire outlet cover of main part, certainly a locking boss is established to the wire outlet cover epirelief, the hasp portion earlier with locking boss hasp cooperation, will again CPA slides to final position, the locking boss accept in the groove of stepping down.

Furthermore, the base part is positioned outside the accommodating groove, the pressing part protrudes out of the upper surface of the cross beam, and the pressing part is provided with a pressing surface which is downwards sunken and is arc-shaped.

Further, the first limiting part is located in the middle of the locking arm in the front-rear direction.

Further, the front end face of the reinforcing part is positioned in front of the first limiting part.

On the other hand, the utility model provides a CPA subassembly, include a basal portion that extends along left right direction, certainly a locking arm and a rib that the basal portion extends forward respectively, a connecting portion are connected the front end of locking arm with the rib, the locking arm with connecting portion enclose and establish and form a space of stepping down, the locking arm with the rib is located respectively the left and right sides in the space of stepping down, the width of rib is greater than in left right direction the width of locking arm in left right direction, the preceding terminal surface of rib is located the rear of the preceding terminal surface of connecting portion, the locking arm is kept away from one side in the space of stepping down is equipped with a first spacing portion, the preceding terminal surface of rib is located the place ahead of first spacing portion.

Further, a stopper portion extends upward from the base portion, and the height of the stopper portion in the up-down direction is higher than the height of the reinforcement portion and the height of the lock arm in the up-down direction.

Furthermore, first spacing portion certainly the protruding formation of establishing of left right direction in middle part one side of locking arm, certainly one side of locking arm is still protruding to be established a spacing portion of second, first spacing portion with spacing portion of second is along fore-and-aft direction dislocation set.

Furthermore, the locking arm connecting portion the rib all has two, and in the left and right sides direction, two the rib sets up side by side, is equipped with one from each in proper order in the outside of rib connecting portion and one the locking arm, two the rib respectively with two the side of connecting portion is connected, two the rib sets up side by side and forms a guide way between the two in the left and right sides direction.

Furthermore, two the rib and two connecting portion enclose jointly and establish and form a groove of stepping down, the groove of stepping down is located the place ahead of guide slot and intercommunication guide slot.

Compared with the prior art, the locking arm and the reinforcing part respectively extend forwards from the base part, the connecting part is connected with the front end of the locking arm and the reinforcing part, the reinforcing part extends forwards from the base part, the width of the reinforcing part in the left and right directions is larger than that of the locking arm in the left and right directions, so that the part of the locking arm connected with the base part is widened, the structural strength of the locking arm is enhanced, the locking arm is not excessively deformed when stressed and is not easy to break, the front end surface of the reinforcing part is positioned in front of the first limiting part, the reinforcing part is positioned on one side of the locking arm in the left and right directions, when the locking arm is applied with force in the left and right directions, the reinforcing part provides a supporting force in the direction opposite to the stress direction for the locking arm, and therefore, the locking arm can be prevented from being stressed and twisting relative to the base part, the locking arm is prevented from being broken, the strength of the locking arm is further enhanced, the connecting portion and the locking arm are surrounded to form the abdicating space, the locking arm and the reinforcing portion are respectively located on the left side and the right side of the abdicating space, the abdicating space provides a certain elastic deformation space for the locking arm, so that the locking arm can not excessively deform and can have elasticity to smoothly unlock under stress, in addition, the connecting portion is connected with the front end of the locking arm, the base portion is connected with the rear end of the locking arm, the locking arm is made to form a simply supported beam structure, elastic deformation of the front end of the locking arm is reduced, the CPA assembly cannot easily break away from the latch piece, normal use of the CPA assembly is guaranteed, and the secondary locking function of the electric connector is guaranteed.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of the electrical connector of the present invention;

FIG. 2 is a partial perspective assembly view of FIG. 1;

figure 3 is a perspective view of the CPA assembly of figure 1;

FIG. 4 is a schematic view of the electrical connector and the mating connector when unmated;

fig. 5 is a perspective view of the electrical connector and the docking connector in the primary locked, CPA assembly in the initial position;

FIG. 6 is a cross-sectional view taken along A-A of FIG. 5;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 5;

figure 8 is a cross-sectional view along a-a of the electrical connector and the mating connector of figure 5 as the CPA assembly is moved from the initial position to the final position;

figure 9 is a cross-sectional view along B-B of the electrical connector and the mating connector of figure 5 as the CPA assembly is moved from the initial position to the final position.

Detailed description of the embodiments reference is made to the accompanying drawings in which:

electrical connector 100	Insulating body 1	Main body 11	Pivot 111
				Wire outlet cover 12	Locking boss 121	Fastener 2	Side plate 21
Pivot hole 211	Cam slot 212	Butt interface 2121	Cross member 22
				Receiving groove 221	Blocking portion 222	First stop surface 2221	Second stop surface 2222
Guide column 223	Locking part 224	Connecting arm 2241	Hook 2242
				Pressing part 225	Pressing surface 2251	Anti-slip rib 2252	Fulcrum 226
CPA assembly 3	Base 31	Locking arm 32	First limiting part 321
				First limit surface 3211	Second position-limiting portion 322	Second position-limiting surface 3221	Reinforcing part 33
First surface 331	Connecting part 34	Guide groove 35	Abdication groove 36
				Stop part 37	Second surface 371	Abdicating space 38	Docking connector 200
Butt joint housing 4	Docking chamber 41	Cam 42

[ detailed description ] embodiments

For better understanding of the objects, structures, features, and functions of the present invention, reference should now be made to the drawings and detailed description of the invention.

Referring to fig. 1 and 4, the electrical connector 100 of the present invention is used to mate with a mating connector 200. The electrical connector 100 includes an insulative housing 1, a plurality of terminals (not shown) disposed in the insulative housing 1, a latch 2 mounted on the insulative housing 1, and a CPA member 3 slidably connected to the latch 2. Each of the terminals is connected to a wire (not shown). The docking connector 200 includes a docking housing 4 and a plurality of docking terminals (not shown) disposed in the docking housing 4, the docking housing 4 is concavely provided with a docking cavity 41 for the insulation body 1 to insert, and two cams 42 are respectively protruded from two side surfaces of the docking housing 4.

Referring to fig. 1 and 4, the insulating housing 1 includes a main body 11 and an outlet cover 12 assembled to the main body 11. The main body 11 is used for inserting the docking housing 4, the plurality of terminals are assembled into the main body 11, a pivot 111 is respectively protruded from two side surfaces of the main body 11, and a locking boss 121 is protruded upward from the wire outlet cover 12.

Referring to fig. 1 and 4, the locking element 2 is a rocker structure, the locking element 2 includes two side plates 21 and a cross beam 22 connecting the two side plates 21, each of the two side plates 21 has a pivot hole 211, the pivot holes 211 are correspondingly matched with the pivot 111 to assemble and fix the locking element 2 to the main body 11, the side plates 21 are located at two sides of the main body 11, each side plate 21 is further provided with an arc-shaped cam groove 212, the cam groove 212 is used for the sliding fit of the cam 42, the cam groove 212 has a pair of interfaces 2121, and the cam 42 enters the cam groove 212 from the interfaces 2121.

Referring to fig. 2 and 7, an accommodating groove 221 penetrates the cross beam 22 in the front-rear direction, a locking portion 224 and a pressing portion 225 are disposed on a top wall of the accommodating groove 221, the locking portion 224 and the pressing portion 225 are connected by a fulcrum portion 226, the pressing portion 225 is located behind the fulcrum portion 226, the locking portion 224 is located in front of the fulcrum portion 226, two sides of the fulcrum portion 226 are connected to an upper surface of the cross beam 22, the pressing portion 225, the fulcrum portion 226 and the locking portion 224 together form a lever structure, when the pressing portion 225 is pressed downward, the locking portion 224 rises upward, and when the pressing portion 225 is released, the locking portion 224 moves downward and returns to a free state. The locking part 224 includes a connecting arm 2241 and a hook 2242 protruding downwards from the front end of the connecting arm 2241, the hook 2242 is used for locking with the locking boss 121. The pressing portion 225 extends rearward and upward obliquely from the fulcrum portion 226, the pressing portion 225 protrudes out of the upper surface of the cross beam 22, the pressing portion 225 has a pressing surface 2251 which is recessed downward and curved, the pressing surface 2251 is designed to be curved and recessed downward, so that the fingers of an operator can be pressed conveniently, the operator can operate smoothly and comfortably, two anti-slip ribs 2252 which are arranged in parallel in the left-right direction are further arranged in front of the pressing surface 2251, and the anti-slip ribs 2252 can increase the friction force between the fingers and the pressing portion 225, so that the operator can press and apply force conveniently.

Referring to fig. 1 and 4, in the present embodiment, the locking element 2 is a rocker structure, and the locking portion 224 and the wire-outgoing cover 12 are locked, in other embodiments, the locking element 2 may also be another locking structure having the locking portion 224 and the pressing portion 225, and the locking element 2 may be matched with the insulating body 1, the mating connector 200 or other structures as long as the electrical connector 100 and the mating connector 200 can be locked.

Referring to fig. 6 and 8, two sidewalls of the receiving groove 221 are respectively provided with a blocking portion 222 protruding into the receiving groove 221 in the left-right direction, and a rear end surface of the blocking portion 222 is an inclined surface to facilitate the CPA assembly 3 to be smoothly inserted. The front end of the blocking portion 222 is provided with a first blocking surface 2221 and a second blocking surface 2222, the first blocking surface 2221 is located below the second blocking surface 2222, and the first blocking surface 2221 is located in front of the second blocking surface 2222. The first stopping surface 2221 is obliquely arranged with the side wall of the receiving groove 221, and the first stopping surface 2221 gradually extends obliquely from back to front to connect the side wall of the receiving groove 221. The second stopping surface 2222 is perpendicular to the sidewall of the receiving groove 221.

Referring to fig. 7, a guiding post 223 is protruded from the bottom wall of the receiving slot 221 toward the receiving slot 221, a length of the guiding post 223 extends in a front-back direction, and the guiding post 223 is used for guiding the CPA device 3 to be inserted into the receiving slot 221.

Referring to fig. 5, 6 and 8, the CPA member 3 is slidably inserted into the receiving groove 221, and the CPA member is slidable between an initial position and a final position along the front-back direction. In the present embodiment, the CPA assembly 3 is slidably connected to the latch 2, and in other embodiments, the CPA assembly 3 can also be slidably connected to the insulation body 1 for secondary locking.

Referring to fig. 3, 7 and 8, the CPA assembly 3 includes a base 31 extending in the left-right direction, two locking arms 32, two reinforcing portions 33 and two connecting portions 34 respectively extending forward from the base 31, the two reinforcing portions 33 are arranged side by side in the left-right direction, one connecting portion 34 and one locking arm 32 are arranged in sequence from the outer side of each reinforcing portion 33, and the two reinforcing portions 33 are respectively connected to the side surfaces of the two connecting portions 34. A guiding groove 35 is formed between the two reinforcing portions 33 to cooperate with the guiding post 223 to assemble the CPA assembly 3 to the receiving groove 221. The front end face of the reinforcing part 33 is located behind the front end face of the connecting part 34, the reinforcing part 33 and the connecting part 34 jointly enclose to form a yielding groove 36, the yielding groove 36 is located in front of the guide groove 35 and communicated with the guide groove 35, and the yielding groove 36 is used for accommodating the locking boss 121. One of the reinforcing portions 33, one of the connecting portions 34, and one of the lock arms 32 are located on one side of the guide groove 35 in the left-right direction, and the other of the reinforcing portions 33, the other of the connecting portions 34, and the other of the lock arms 32 are located on the other side of the guide groove 35 in the left-right direction, which are symmetrically arranged with respect to a center line of the guide groove 35 in the front-rear direction. A stopper 37 extends upward from the base 31, the height of the stopper 37 in the vertical direction is higher than the height of the reinforcement 33 and the locking arm 32 in the vertical direction, and the pressing portion 225 is located between the two locking arms 32 in the left-right direction.

Referring to fig. 3, for convenience of description, only the structures and the connection relationships of one of the stopping portion 37, one of the connecting portions 34, and one of the locking arms 32 located at one side of the guiding slot 35 are described below, and the related structures at the other side of the guiding slot 35 are symmetrically arranged, so that the description thereof is omitted.

Please refer to fig. 1, fig. 3, fig. 6 and fig. 8, the connecting portion 34 extends forward from the base 31 and then extends toward the locking arm 32, the connecting portion 34 and the locking arm 32 and the base 31 together enclose a abdicating space 38 enclosed all around, one side of the abdicating space 38 far away from the connecting portion 34 is connected with the reinforcing portion 33, one side of the locking arm 32 far away from the abdicating space 38 is convexly provided with a first limiting portion 321 and a second limiting portion 322 matched with the locking piece 2 along the left-right direction, the first limiting portion 321 and the second limiting portion 322 are arranged along the front-back direction in a staggered manner, the first limiting portion 321 is located behind the second limiting portion 322, and the first limiting portion 321 is located below the second limiting portion 322. The first limiting portion 321 is located at the center of the locking arm 32 in the front-back direction, so that the two ends of the locking arm 32 are uniformly stressed, the elastic deformation is equivalent, and the problem that the locking arm 32 is seriously deformed due to the fact that the elastic restoring force is excessively concentrated at one end of the locking arm 32 is avoided. The first position-limiting portion 321 is used to cooperate with the blocking portion 222 of the receiving slot 221 to keep the CPA assembly 3 at the final position, the locking portion 224 is kept locked with the insulation body 1, the CPA assembly 3 is slid backwards, the first position-limiting portion 321 crosses the blocking portion 222 and is located behind the blocking portion 222, the second position-limiting portion 322 cooperates with the blocking portion 222 of the receiving slot 221 to keep the CPA assembly 3 at the initial position, and meanwhile, the pressing portion 225 is pressed downwards to release the locking portion 224 from the insulation body 1. Specifically, the front end surfaces of the first limiting portion 321 and the second limiting portion 322 are both obliquely arranged with the side surface of the locking arm 32, the front end surfaces of the first limiting portion 321 and the second limiting portion 322 are both obliquely extended from the front to the back away from the side surface of the locking arm 32, and the front end surfaces of the first limiting portion 321 and the second limiting portion 322 and the rear end surface of the blocking portion 222 are both obliquely arranged, so that the CPA assembly 3 can smoothly slide forward. The rear end of the first position-limiting portion 321 is provided with a first position-limiting surface 3211, the first position-limiting surface 3211 is disposed obliquely with the side surface of the locking arm 32, the first position-limiting surface 3211 extends obliquely from the rear to the front away from the side surface of the locking arm 32, and the first position-limiting surface 3211 cooperates with the first blocking surface 2221 to maintain the CPA assembly 3 at the final position. Since the first stopping surface 2221 and the first stopping surface 3211 are both inclined and engaged with each other, when the CPA assembly 3 is subjected to a backward force, the first stopping portion 321 can move backward beyond the stopping portion 222 to the rear of the stopping portion 222, so that the CPA assembly 3 moves to the initial position. A second position-limiting surface 3221 is disposed at a rear end of the second position-limiting portion 322, the second position-limiting surface 3221 is perpendicular to the side surface of the locking arm 32, and the second position-limiting surface 3221 cooperates with the second stopping surface 2222 to maintain the CPA assembly 3 at the initial position.

Referring to fig. 3, 6 and 7, when the CPA assembly 3 is inserted into the receiving slot 221 and slides between the initial position and the final position, the first limiting portion 321 and the second limiting portion 322 need to pass over the blocking portion 222, so that the locking arm 32 is pressed by the blocking portion 222 in the horizontal direction, the first limiting portion 321 and the second limiting portion 322 are convexly formed along the left-right direction from the side of the locking arm 32 away from the abdicating space 38, the first limiting portion 321 is located behind the second limiting portion 322, the locking arm 32 has sufficient elastic deformation space so that the first limiting portion 321 and the second limiting portion 322 pass over the blocking portion 222 smoothly, and the locking arm 32 is not deformed excessively or even broken when being pressed by the blocking portion 222. Meanwhile, since the reinforcing portion 33 extends forward from the base portion 31 and is connected to the latch arm 32 through the connecting portion 34, the reinforcing portion 33 can increase the structural strength of the latch arm 32, so that the latch arm 32 is not excessively deformed or broken when being pressed by the blocking portion 222, and the connecting portion 34 is connected to the front end of the latch arm 32, so that the front end of the latch arm 32 is not easily deformed when being pressed by a force, so that the CPA assembly 3 is not separated from the receiving groove 221. The front end surface of the connecting portion 34 is flush with the front end surface of the lock arm 32. The locking arm 32 with the rib 33 is located respectively the left and right sides in the space of stepping down 38, the width of rib 33 in the left and right directions is greater than the width of locking arm 32 in the left and right directions, has further ensured the intensity of locking arm 32. Since the front end surface of the reinforcing portion 33 is located in front of the first stopper portion 321 and the reinforcing portion 33 is located on one side of the lock arm 32 in the left-right direction, when the lock arm 32 is biased in the left-right direction, the reinforcing portion 33 provides the lock arm 32 with a supporting force in a direction opposite to the biasing direction, so that the lock arm 32 can be prevented from being biased to twist with respect to the base portion 31, and the lock arm 32 can be prevented from being broken. The upper surfaces of the reinforcing portion 33 and the connecting portion 34 are located at the same height, the upper surfaces of the reinforcing portion 33 and the connecting portion 34 form a first surface 331, the upper surface of the stopper 37 forms a second surface 371, and the first surface 331 is lower than the second surface 371.

Referring to fig. 4, 6 and 7, the operation of the electrical connector 100 and the docking connector 200 will be described. Before the electrical connector 100 and the mating connector 200 are mated, the guiding groove 35 and the guiding post 223 are mutually matched to guide the CPA assembly 3 to enter the receiving groove 221 from back to front, the locking arm 32 is pressed by the blocking portion 222 in the horizontal direction to deform toward the receding space 38, further, the second limiting portion 322 passes over the blocking portion 222 to the front of the blocking portion 222 to keep the CPA assembly 3 at the initial position, in which the first limiting portion 321 is located at the back of the blocking portion 222, when the CPA assembly 3 is kept at the initial position, the second limiting surface 3221 and the second limiting surface 2222 are mutually matched, the second limiting surface 2222 is stopped at the back of the second limiting surface 3221, and the second limiting surface 2222 and the second limiting surface 3221 are vertically arranged, so that the CPA assembly 3 cannot further slide back to exit from the receiving groove 221, therefore, the CPA assembly 3 can be always kept on the electrical connector 100 without worrying about the CPA assembly 3 falling off from the electrical connector 100, so that the connection strength of the CPA assembly 3 and the electrical connector 100 is ensured, the use experience of an operator is improved, the operation time of the operator is saved, and the operation difficulty is reduced.

Referring to fig. 4, the mating and locking process of the electrical connector 100 and the mating connector 200 is as follows: the latch member 2 is first rotated to a ready position such that the mating opening 2121 of the cam groove 212 faces the mating direction of the body 11 with the mating cavity 41, and the cam 42 is aligned with the mating opening 2121 of the cam groove 212, and the electrical connector 100 and the mating connector 200 are ready for mating.

Referring to fig. 4, 5 and 7, when the locking element 2 is swung toward one side of the wire outlet cover 12, the cam 42 enters the cam groove 212, and as the locking element 2 approaches the wire outlet cover 12, the cam 42 moves along the track of the cam groove 212 toward one end away from the mating port 2121, the main body 11 is slowly inserted into the mating cavity 41, the hook 2242 of the locking element 224 is engaged with the locking boss 121 on the wire outlet cover 12, the cam 42 slides to the other end of the cam groove 212 opposite to the mating port 2121, and the electrical connector 100 and the mating connector 200 complete one-time locking.

Referring to fig. 5, 6, 7, 8 and 9, the hook 2242 of the locking part 224 is firstly snapped with the locking protrusion 121 on the wire outgoing cover 12, the electrical connector 100 and the mating connector 200 are mated, and then the CPA assembly 3 is pushed forward from the initial position to the final position, the second position-limiting part 322 moves forward to separate the second position-limiting surface 3221 from the second blocking surface 2222, the first position-limiting part 321 moves forward to the front of the blocking part 222 over the blocking part 222, and the first position-limiting surface 3211 and the first blocking surface 2221 are engaged with each other to keep the CPA assembly 3 at the final position. When the CPA assembly 3 is kept at the final position, the locking boss 121 is accommodated in the receding slot 36, the stopping portion 37 enters the accommodating slot 221 and is located below the pressing portion 225, because the stopping portion 37 is stopped below the pressing portion 225, the second surface 371 of the stopping portion 37 is stopped with the lower surface of the pressing portion 225, so as to prevent an operator from pressing the pressing portion 225 downward to drive the locking portion 224 to move upward, and prevent the hook portion 2242 of the locking portion 224 from being disengaged from the locking boss 121 on the wire outgoing cover 12, so that the electrical connector 100 and the mating connector 200 are locked secondarily.

Referring to fig. 4, 6, 7, 8 and 9, the separation and unlocking process of the electrical connector 100 and the docking connector 200 is as follows: the CPA assembly 3 is pulled backward by force, so that the first limiting portion 321 passes over the blocking portion 222 backward to the rear of the blocking portion 222, the CPA assembly 3 moves to the initial position, at this time, the stopping portion 37 retreats from the receiving slot 221 backward, so that the pressing portion 225 allows downward movement, the pressing portion 225 is pressed downward, so that the locking portion 224 moves upward, and the hook portion 2242 and the locking boss 121 complete releasing. In this embodiment, the latch 2 is in latching engagement with the insulation body 1, and when the CPA assembly 3 is held at the initial position, the pressing portion 225 can be pressed downward to release the latch 224 from the insulation body 1, in other embodiments, the latch 2 can also be in latching engagement with the mating connector 200, and when the CPA assembly 3 is held at the initial position, the pressing portion 225 can be pressed downward to release the latch 224 from the mating connector 200. It should be noted that, because the reinforcing portion 33 and the connecting portion 34 are provided with the first surface 331, the pressing portion 225 can be pressed downward to abut against the first surface 331, and the first surface 331 is located below the pressing portion 225, the maximum downward pressing amplitude of the pressing portion 225 is up to the stop of the first surface 331 and the lower surface of the pressing portion 225, and the pressing portion 225 cannot be pressed downward excessively, so that the fulcrum portion 226 connecting the pressing portion 225 and the locking portion 224 cannot be deformed due to the large-amplitude rotation of the pressing portion 225, the structural strength of the fulcrum portion 226 is protected, the durability of the fulcrum portion 226 is increased, and the locking portion 224 can be locked many times.

Referring to fig. 4 and 5, the latch 2 is shaken again to move to the ready position, the cam 42 slides from the end of the cam groove 212 away from the mating interface 2121 toward the mating interface 2121, the main body 11 slowly withdraws from the mating cavity 41 until the latch 2 reaches the ready position, the cam 42 slides to the mating interface 2121 to pull the main body 11 out of the mating cavity 41, and the electrical connector 100 and the mating connector 200 are separated.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "width", "vertical", "relative", "vertical", "inclined", and the like indicate orientations or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or assembly referred to must be constructed and operated in a specific orientation with a designated orientation, and therefore, should not be construed as limiting the present invention.

To sum up, the utility model discloses an electric connector and CPA subassembly thereof has following beneficial effect:

1. the lock arm 32 and the reinforcement portion 33 extend forward from the base portion 31, respectively, the connecting portion 34 connects the front end of the lock arm 32 and the reinforcement portion 33, the reinforcement portion 33 extends forward from the base portion 31, the width of the reinforcement portion 33 in the left-right direction is larger than the width of the lock arm 32 in the left-right direction, so that the portion where the lock arm 32 is connected to the base portion 31 is widened, the structural strength of the lock arm 32 is enhanced, the lock arm 32 is not excessively deformed when receiving a force, and is not easily broken, and the front end surface of the reinforcement portion 33 is located in front of the first stopper portion 321 and the reinforcement portion 33 is located on one side of the lock arm 32 in the left-right direction, and when the lock arm 32 is biased in the left-right direction, the reinforcement portion 33 provides a supporting force in the direction opposite to the biased direction to the lock arm 32, therefore, the locking arm 32 is prevented from being twisted relative to the base 31 by force, the locking arm 32 is prevented from being broken, the strength of the locking arm 32 is further enhanced, the connecting portion 34 and the locking arm 32 enclose the abdicating space 38, the locking arm 32 and the reinforcing portion 33 are respectively located at the left and right sides of the abdicating space 38, the abdicating space 38 provides a certain elastic deformation space for the locking arm 32, so that the locking arm 32 can not be excessively deformed and can have elasticity to be smoothly unlocked when being stressed, in addition, the connecting portion 34 is connected with the front end of the locking arm 32, the base 31 is connected with the rear end of the locking arm 32, the locking arm 32 forms a simple beam structure, thereby reducing the elastic deformation of the front end of the locking arm 32, and the CPA assembly 3 cannot be easily separated from the locking device 2, thereby ensuring normal use of the CPA assembly 3 and ensuring the secondary locking function of the electrical connector 100.

2. Since the height of the stopper 37 in the vertical direction is higher than the height of the reinforcing portion 33 in the vertical direction, when the CPA assembly 3 is held at the final position, the locking portion 224 and the insulation body 1 are kept in the locked state, the stopper 37 enters the accommodating groove 221 and is located below the pressing portion 225, so that the user is prevented from pressing the pressing portion 225 downward to drive the locking portion 224 to move upward, and the locking portion 224 is prevented from moving upward to disengage the hook 2242 of the locking portion 224 from the locking boss 121 on the cable outlet cover 12, so that the locking portion 224 is kept in the locked state.

3. From locking arm 32 keeps away from one side of space 38 of stepping down is protruding to be established along the left-right direction and is formed first spacing portion 321 and the spacing portion 322 of second, first spacing portion 321 is located the rear of the spacing portion 322 of second, locking arm 32 has sufficient elastic deformation space and makes first spacing portion 321 with the spacing portion 322 of second is crossed smoothly stop part 222, makes locking arm 32 is receiving can excessively warp even fracture when stop part 222's extrusion.

4. The rear end of the first position-limiting portion 321 is provided with the first position-limiting surface 3211 and the side surface of the locking arm 32, the front end of the blocking portion 222 is provided with the first blocking surface 2221 and the side wall of the receiving groove 221, the first blocking surface 2221 cooperates with the first position-limiting surface 3211 to keep the CPA assembly 3 at the final position, and since the first blocking surface 2221 and the first position-limiting surface 3211 are both disposed obliquely and cooperate with each other, when the CPA assembly 3 receives a backward force, the first position-limiting portion 321 can pass over the blocking portion 222 backward to the rear of the blocking portion 222 to restore the CPA assembly 3 to the initial position. The rear end of the second position-limiting portion 322 is provided with the second position-limiting surface 3221, which is perpendicular to the side of the locking arm 32, the front end of the blocking portion 222 is further provided with the second blocking surface 2222, which is perpendicular to the side wall of the receiving groove 221, the second blocking surface 2222 cooperates with the second position-limiting surface 3221 to keep the CPA assembly 3 at the initial position, the second position-limiting surface 3221 and the second blocking surface 2222222 cooperate with each other, the second blocking surface 2222 is blocked behind the second position-limiting surface 3221, and the second blocking surface 2222 and the second position-limiting surface 2221 are both vertically arranged, so that the CPA assembly 3 cannot further slide backwards and withdraw from the receiving groove 221, so that the CPA assembly 3 can be kept on the electrical connector 100 without worrying about the CPA that the CPA assembly 3 falls off the electrical connector 100, thereby ensuring the connection strength between the CPA assembly 3 and the electrical connector 100, the use experience of the operator is improved, the operation time of the operator is saved, and the operation difficulty is reduced.

5. The guiding groove 35 is formed between the two reinforcing portions 33, the guiding post 223 is protruded from the bottom wall of the receiving groove 221, and the CPA assembly 3 is assembled to the receiving groove 221 by the cooperation of the guiding groove 35 and the guiding post 223, so that the CPA assembly 3 can be prevented from being obliquely inserted or erroneously inserted into the receiving groove 221, and the CPA assembly 3 can be ensured to slide in the front-back direction without shaking in the left-right direction.

6. The reinforcing portion 33 and the upper surface of the connecting portion 34 are located at the same height, the reinforcing portion 33 and the upper surface of the connecting portion 34 form the first surface 331, when the CPA assembly 3 is at the initial position, the first surface 331 is located below the pressing portion 225, so that the maximum downward pressing amplitude of the pressing portion 225 is limited to the stop of the first surface 331 and the lower surface of the pressing portion 225, and the pressing portion 225 is prevented from being pressed downward excessively, so that the fulcrum portion 226 connecting the pressing portion 225 and the locking portion 224 is not deformed due to the large rotation of the pressing portion 225, the structural strength of the fulcrum portion 226 is protected, the durability of the fulcrum portion 226 is increased, the locking portion 224 can be locked many times, the upper surface of the stopping portion 37 forms a second surface 371, and the first surface 331 is lower than the second surface, the first surface 331 does not affect the normal pressing of the pressing portion 225, so that the lock catch portion 224 and the locking boss 121 can be smoothly unlocked, and excessive pressing is avoided, thereby avoiding the fracture of the pressing portion 225 caused by excessive pressing force of a user.

7. The pressing portion 225 protrudes out of the upper surface of the cross beam 22, the pressing portion 225 is provided with a pressing surface 2251 which is concave downwards and is arc-shaped, the pressing surface 2251 is arc-shaped and concave downwards, so that the finger of an operator can press the pressing portion conveniently, the operator can operate smoothly and comfortably, two anti-slip ribs 2252 which are arranged in parallel in the left-right direction are further arranged in front of the pressing surface 2251, and the anti-slip ribs 2252 can increase the friction force between the finger and the pressing portion 225, so that the operator can press and apply force conveniently.

8. The first limiting portion 321 is located at the center of the locking arm 32 in the front-back direction, so that the two ends of the locking arm 32 are uniformly stressed, the elastic deformation is equivalent, and the problem that the locking arm 32 is seriously deformed due to the fact that the elastic restoring force is excessively concentrated at one end of the locking arm 32 is avoided.

The above detailed description is only for the purpose of illustrating the preferred embodiments of the present invention, and not for the purpose of limiting the scope of the present invention, therefore, all the equivalent technical changes using the description and drawings of the present invention are included in the scope of the present invention.

Claims

1. An electrical connector for mating with a mating connector, comprising:

the insulating body is provided with a locking piece, and the locking piece comprises a locking part and a pressing part;

a CPA assembly slidably connected to the latch member or the insulation body, the CPA assembly including a base portion extending in left and right directions, a latch arm and a reinforcement portion extending forward from the base portion, respectively, a connecting portion connecting a front end of the latch arm and the reinforcement portion, the connecting portion and the latch arm enclosing a space for abdicating, the latch arm and the reinforcement portion respectively located on left and right sides of the space for abdicating, the reinforcement portion having a width in left and right directions greater than that of the latch arm, a first limiting portion cooperating with the latch member or the insulation body being provided on a side of the latch arm away from the space for abdicating, the base portion extending upward to block a blocking portion, when the latch portion is interlocked with the insulation body or the mating connector, the blocking portion being blocked below the pressing portion, so that the locking portions maintain the locked state.

2. The electrical connector of claim 1, wherein: the height of the stopper portion in the up-down direction is higher than the height of the lock arm and the reinforcement portion in the up-down direction.

3. The electrical connector of claim 1, wherein: connecting portion certainly the basal portion extends forward earlier then towards the bending of locking arm extends, connecting portion with the locking arm and the basal portion encloses jointly and establishes formation confined all around the space of stepping down, connecting portion keep away from the space of stepping down one side with the rib links to each other.

4. The electrical connector of claim 1, wherein: the locking part is of a rocker structure and comprises two side plates and a cross beam connected with the two side plates, an accommodating groove penetrates through the cross beam along the front-back direction, the locking part and the pressing part are arranged on the top wall of the accommodating groove, the locking part and the pressing part are connected through a fulcrum part, and the CPA assembly is inserted into the accommodating groove and can slide along the front-back direction.

5. The electrical connector of claim 4, wherein: the first limiting portion and the second limiting portion are formed by protruding from one side, away from the abdicating space, of the locking arm in the left-right direction, the first limiting portion is located behind the second limiting portion, the blocking portion is protruding from the side wall of the accommodating groove, the blocking portion is matched with the first limiting portion to keep the CPA assembly at the final position, the locking portion and the insulation body or the butting connector keep in a locking state, the CPA assembly slides backwards, the first limiting portion crosses the blocking portion and is located behind the blocking portion, the blocking portion is matched with the second limiting portion to keep the CPA assembly at the initial position, and meanwhile the pressing portion is pressed downwards to enable the locking portion to be disengaged from the insulation body or the butting connector.

6. The electrical connector of claim 5, wherein: the reinforcing part and the upper surface of the connecting part are located at the same height, a first surface is formed on the reinforcing part and the upper surface of the connecting part, a second surface is formed on the upper surface of the blocking part, the first surface is lower than the second surface, when the CPA assembly is located at an initial position, the pressing part can be pressed downwards to abut against the first surface, and when the CPA assembly is located at a final position, the second surface is blocked below the pressing part to prevent the pressing part from moving downwards.

7. The electrical connector of claim 5, wherein: the first limiting part and the second limiting part are arranged in a staggered mode along the front-back direction, a first limiting face is arranged at the rear end of the first limiting part and obliquely arranged with the side face of the locking arm, a second limiting face is arranged at the rear end of the second limiting part and vertically arranged with the side face of the locking arm, a first blocking face is arranged at the front end of the blocking part and obliquely arranged with the side wall of the accommodating groove, the first blocking face is matched with the first limiting face to keep the CPA assembly at the final position, a second blocking face is further arranged at the front end of the blocking part and vertically arranged with the side wall of the accommodating groove, and the second blocking face is matched with the second limiting face to keep the CPA assembly at the initial position.

8. The electrical connector of claim 4, wherein: the locking arm, the connecting portion and the reinforcing portion are provided with two, the two reinforcing portions are arranged side by side in the left-right direction, the connecting portion and the locking arm are sequentially arranged on the outer side of each reinforcing portion, the two reinforcing portions are respectively connected with the side faces of the two connecting portions, a guide groove is formed between the two reinforcing portions, a guide column is convexly arranged on the bottom wall of the accommodating groove, and the guide groove is matched with the guide column to assemble the CPA assembly to the accommodating groove.

9. The electrical connector of claim 8, wherein: two the rib encloses jointly with two connecting portion establishes and forms a groove of stepping down, insulator includes a main part and equipment extremely a wire outlet cover of main part, certainly the wire outlet cover upwards the protruding locking boss that establishes, hasp portion earlier with locking boss hasp cooperation will again CPA slides to final position, the locking boss accept in the groove of stepping down.

10. The electrical connector of claim 4, wherein: the base portion is located outside the accommodating groove, the pressing portion protrudes out of the upper surface of the cross beam, and the pressing portion is provided with a pressing surface which is downwards sunken and is arc-shaped.

11. The electrical connector of claim 1, wherein: the first limiting part is located in the middle of the locking arm in the front-back direction.

12. The electrical connector of claim 1, wherein: the front end face of the reinforcing part is positioned in front of the first limiting part.

13. A CPA assembly, comprising:

a basal portion that extends along left right direction, certainly a locking arm and a rib that the basal portion extended forward respectively, a connecting portion are connected the front end of locking arm with the rib, the locking arm with connecting portion enclose to establish and form one and step down the space, the locking arm with the rib is located respectively step down the left and right sides in space, the width of rib in left right direction is greater than the width of locking arm in left right direction, the preceding terminal surface of rib is located the rear of the preceding terminal surface of connecting portion, the locking arm is kept away from one side in space of stepping down is equipped with a first spacing portion, the preceding terminal surface of rib is located the place ahead of first spacing portion.

14. The CPA assembly of claim 13, wherein: a stopper portion extends upward from the base portion, and the height of the stopper portion in the up-down direction is higher than the height of the reinforcement portion and the height of the lock arm in the up-down direction.

15. The CPA assembly of claim 13, wherein: connecting portion certainly the basal portion extends forward earlier then towards the bending of locking arm extends, connecting portion with the locking arm and the basal portion encloses jointly and establishes formation confined all around the space of stepping down, connecting portion keep away from the space of stepping down one side with the rib links to each other.

16. The CPA assembly of claim 13, wherein: first spacing portion certainly the protruding formation of establishing of left right direction in middle part one side of locking arm, certainly one side of locking arm is still protruding to be established a spacing portion of second, first spacing portion with the spacing portion of second sets up along fore-and-aft direction dislocation.

17. The CPA assembly of claim 13, wherein: the locking arm connecting portion the rib all has two, and in the left and right sides direction, two the rib sets up side by side, from each the outside of rib is equipped with one in proper order connecting portion and one the locking arm, two the rib respectively with two the side of connecting portion is connected, two the rib sets up side by side and forms a guide way between the two in the left and right sides direction.

18. The CPA assembly of claim 17, wherein: the two reinforcing parts and the two connecting parts are jointly enclosed to form a yielding groove, and the yielding groove is located in front of the guide groove and communicated with the guide groove.