CN216312249U - Improved multi-core electric connector - Google Patents

Abstract

The utility model discloses an improved multi-core electric connector which comprises a wire end terminal seat, a plate end terminal seat, a wire protection shell, a plurality of wire end terminals arranged in the wire end terminal seat and a plurality of plate end terminals arranged in the plate end terminal seat, wherein the wire end terminal seat, the plate end terminal seat and the wire protection shell are coaxially arranged, the wire end terminal seat is arranged in the wire protection shell, the plate end terminal seat is clamped at one end of the wire protection shell, the plate end terminals correspond to the wire end terminals one by one, and when the plate end terminal seat is clamped with the wire protection shell, the plate end terminals can be inserted with the corresponding wire end terminals. The utility model provides an improved generation multicore number electric connector, it is small, simple to operate, and the joint is firm.

Description

Improved multi-core electric connector

Technical Field

The utility model relates to the technical field of electric connectors, in particular to an improved multi-core electric connector.

Background

The electric connector is a bridge for all signals, the quality of the electric connector can affect the reliability of current signal transmission, and is closely related to the operation of various electronic systems and electrical equipment. The traditional electric connector has a complex structure, the plug and the socket are not convenient to plug, and the production cost is high. In addition, some conventional electrical connectors are not designed to be fool-proof between the plug and the socket, and the situation of reverse insertion exists in the process of inserting the plug and the socket, so that connection failure is caused, and the connector or the circuit is damaged under the serious situation.

The male terminal is generally installed in the plug, and the conventional electric connector is not reasonable enough in male terminal design, complex in structure, high in manufacturing cost, inconvenient to install and not easy to replace when damaged. Meanwhile, due to the influence of structural design, the conventional electric connector cannot be small in size, occupies more space when being installed on equipment such as a case, is low in space utilization rate and is not beneficial to the miniaturization design of the equipment. In addition, under the condition that the electric connector is not used, the board end and the wire end need to be separated, the board end is internally provided with the board end terminal, and the traditional electric connector is not designed with a sealing cover structure, so that dust is easily accumulated in the board end under the condition that the electric connector is not used for a long time, and the phenomenon of poor contact can exist when the electric connector is used again.

Therefore, in combination with the above-mentioned technical problems, a new technical solution is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric connector which is small in size, convenient to install and firm in clamping.

In order to realize the purpose of the utility model, the utility model provides an improved multi-core electric connector, which comprises a wire end terminal seat, a board end terminal seat, a wire protection shell, a plurality of wire end terminals arranged in the wire end terminal seat and a plurality of board end terminals arranged in the board end terminal seat, wherein the wire end terminal seat, the board end terminal seat and the wire protection shell are coaxially arranged, the wire end terminal seat is arranged in the wire protection shell, the board end terminal seat is clamped at one end of the wire protection shell, the board end terminals correspond to the wire end terminals one by one, and when the board end terminal seat is clamped with the wire protection shell, the board end terminals can be spliced with the corresponding wire end terminals.

Furthermore, the line terminal base comprises a main body and a first clamping jaw arranged on the main body, the main body is respectively provided with a plug end and a wiring end along the axis direction, the plug end of the main body extends outwards along the axis direction to form a limiting structure, one end of the first clamping jaw is connected with the plug end of the main body, the length direction of the first clamping jaw is consistent with the axis direction of the main body, the first clamping jaw is symmetrically arranged on two sides of the limiting structure in the width direction, the line terminal base is clamped with the side wall of the wire protection shell through the first clamping jaw, and the limiting structure faces the plate terminal base.

Furthermore, the protecting wire shell has joint end and threading end respectively along its axis direction, the terminal base of line end is installed and is being close to the position of joint end, the terminal base of line end with prevent slow-witted design between the protecting wire shell, the lateral wall of protecting wire shell is corresponding the joint through-hole has been seted up respectively to the position of first jack catch, first jack catch with correspond the joint through-hole joint.

Further, first jack catch is kept away from one side of limit structure is equipped with first press structure and first card protrudingly, first protruding symmetry of card is located first press structure is in main part length direction's both sides, one side of joint through-hole runs through the terminal surface of joint end, the joint through-hole is in it is protruding to be equipped with the second card on two ascending inner walls of main part length direction respectively first jack catch and corresponding during the joint through-hole joint, first press structure is located two between the second card is protruding, first card protruding with the protruding joint of second card, the upper surface of first press structure is not higher than the outer wall of protecting wire shell.

Further, the wire protecting shell is provided with second clamping jaws on two sides of the length direction of the wire protecting shell respectively, the length direction of the second clamping jaws is consistent with the axis direction of the wire protecting shell, one end of the second clamping jaws is connected with the outer wall surface of the wire protecting shell, the other end of the second clamping jaws is a free end, the free end faces the wire penetrating end, a third clamping protrusion is arranged on the outer side of the second clamping jaws, and the free end is provided with a second pressing structure.

Furthermore, the plate end terminal block comprises a plate end body, one end surface of the plate end body extends outwards along the axial direction of the plate end body to form an annular bulge, the two sides of the annular bulge are provided with clamping lugs, a plurality of first accommodating cavities are arranged in the plate end body, the first accommodating cavity respectively penetrates through the wiring end face and the clamping end face of the body, the first accommodating cavity is communicated with an area defined by the annular bulges, the board end terminal is arranged in the first accommodating cavity, the inserting end of the board end terminal extends into the area surrounded by the annular bulge, when the plate terminal base is clamped at one end of the wire protecting shell, the clamping end of the wire protecting shell is inserted into the area surrounded by the annular bulge, the clamping lugs on two sides of the annular protrusion are respectively clamped with the corresponding second clamping claws, and the plate end terminal is spliced with the corresponding line end terminal.

Furthermore, a fool-proof structure is arranged in an area defined by the annular bulges, when the board end terminal seat is clamped at one end of the wire protection shell, the fool-proof structure is inserted between the limiting structure and the wire protection shell, and the fool-proof structure and the limiting structure are designed to be fool-proof.

Furthermore, the line end terminal block still includes the back lid, be provided with a plurality of second holding chamber in the main part, the axis direction in second holding chamber with the axis direction of main part is unanimous, a plurality of spliced eye has been seted up to limit structure's extension end, the spliced eye with second holding chamber one-to-one, the spliced eye communicates with the second holding chamber that corresponds, the line end terminal is installed in the second holding intracavity, the back lid block is in the threading end of main part when board end terminal block is in the one end of protecting wire shell, the one end of board end terminal passes through the spliced eye is pegged graft with the line end terminal that corresponds.

Furthermore, the terminal main body comprises a terminal main body and a spring plate, the terminal main body sequentially comprises a wiring part and an inserting part along the length direction of the terminal main body, the inserting part faces the inserting hole, the wiring part comprises a connecting part, a supporting part and a fixing part which are sequentially connected, the length direction of the connecting part is consistent with the length direction of the terminal main body, the fixing part is arranged opposite to the connecting part, one end of the spring plate is connected with the fixing part, the other end of the spring plate is a free end, the free end extends and bends towards one side far away from the inserting part, the free end is abutted against one side of the connecting part, the inserting part comprises a first inserting part and a second inserting part, the length direction of the first inserting part and the length direction of the second inserting part are consistent with the length direction of the connecting part, and one end of the first inserting part is connected with the connecting part, one end of the second inserting portion is connected with the supporting portion, the first inserting portion and the second inserting portion are arranged oppositely, and the other end of the first inserting portion and the other end of the second inserting portion extend towards the direction far away from the elastic sheet respectively.

Furthermore, the back lid corresponds each the position in second holding chamber is provided with a button through-hole and a threading counter bore respectively, the button through-hole is located the threading counter bore is in one side of back lid width direction, the through wires hole has been seted up in the threading counter bore, the through wires hole runs through the back lid, install the button in the button through-hole, the one end of button with the shell fragment is contradicted, presses down the button can make the free end of shell fragment is kept away from connecting portion.

The improved multi-core electric connector has one or more of the following advantages:

(1) the improved multi-core electric connector is compact in structure, small in size, convenient to install and firm in clamping;

(2) according to the improved multi-core electric connector, the annular bulge extends from one side of the plate end terminal seat, one end of the wire end wire protection shell can be inserted into the wire end wire protection shell when the annular bulge is clamped with a wire end, on one hand, a clamping jaw of a wire end terminal arranged in the wire end protection shell can be hidden, unlocking of the wire end protection shell caused by mistaken touch can be prevented, and on the other hand, the annular bulge can be matched with the sealing cover to play a sealing role;

(3) according to the improved multi-core electric connector, the annular bulge of the plate end terminal seat is internally provided with the fool-proof structure, and when the improved multi-core electric connector is clamped with a wire end, the fool-proof structure can be matched with the wire end terminal seat to play a fool-proof role and ensure that the wire end of the electric connector cannot be reversely inserted;

(4) according to the improved multi-core electric connector, the clamping lugs are arranged on two sides of the plate end terminal base, so that on one hand, the clamping lugs can be matched with the clamping jaws on the wire protection shell to realize quick assembly and disassembly, and on the other hand, the improved multi-core electric connector can also be used for installing the sealing cover to seal the area in the annular bulge of the plate end terminal base;

(5) the improved multi-core electric connector has the advantages that the terminal seat of the wire end is compact in structure and small in size, can be installed in the wire protecting shell, and contributes to miniaturization of the electric connector;

(6) according to the improved multi-core electric connector, one side of the line end terminal seat extends to form a limiting structure, and the limiting structure is in fool-proof design with the line protecting shell and the line end terminal seat respectively, so that the line end of the electric connector can be prevented from being reversely inserted;

(7) according to the improved multi-core electric connector, the line end terminal seat is designed in a pressing mode by the aid of the keys along the axis, so that more rows of accommodating cavities can be designed as required to install line end terminals, the space utilization rate is high, and the number of the line end terminals is large;

(8) according to the improved multi-core electric connector, when the wire end terminal base is clamped with the wire protection shell, the first pressing structures on the clamping jaws are embedded in the inner wall of the wire protection shell, so that one end of the wire protection shell can be smoothly connected with the board end of the electric connector, meanwhile, the clamping jaws are well hidden, and the wire protection shell is prevented from being unlocked due to mistaken touch;

(9) according to the improved multi-core electric connector, the terminal end terminal is split, the terminal main body is integrally formed and can be formed by stamping a metal plate with a set shape, the structure is simple, the production cost is low, the elastic sheets made of different materials can be selected according to requirements, the excellent elasticity of the elastic sheets is ensured, the installation is simple, and the electric connector is convenient to assemble;

(10) according to the improved multi-core electric connector, the line end terminal is provided with the baffle part, so that the limiting effect is achieved, and the excessive insertion of the board end terminal can be prevented when the board end terminal is inserted into the line end terminal;

(11) the utility model provides an improved generation multicore number electric connector, its line terminal supporting part keep away from the one end of grafting portion and seted up the spacing notch of button, can play the effect of spacing button, prevents that the button from being pressed excessively.

Drawings

Fig. 1 is a schematic structural diagram of the electrical connector with multiple cores according to the present embodiment;

fig. 2 is an exploded view of the electrical connector of the present embodiment;

fig. 3 is an exploded schematic view of the wire end terminal block according to this embodiment;

fig. 4 is a schematic perspective view of the line end terminal block main body provided in this embodiment in one direction;

fig. 5 is a schematic perspective view of the line end terminal block main body provided in this embodiment in a second direction;

fig. 6 is a schematic structural diagram of the line end terminal block main body provided in this embodiment in a side view direction;

fig. 7 is a schematic structural diagram of the rear cover of the line terminal block according to this embodiment;

fig. 8 is a schematic structural diagram of the line end terminal block provided in this embodiment in a top view direction;

FIG. 9 is a cross-sectional view of FIG. 8 at A;

fig. 10 is a schematic view of the installation positions of the line terminal, the key and the rear cover when the main body of the line terminal base is removed according to the embodiment;

fig. 11 is a schematic view of an installation position between the wire end terminal block and the wire protecting housing according to this embodiment;

fig. 12 is a schematic perspective view of a wire-protecting housing provided in this embodiment;

fig. 13 is a schematic structural view of the wire-protecting housing provided in this embodiment in a top view;

fig. 14 is a schematic perspective view of the line end terminal provided in this embodiment;

fig. 15 is a schematic perspective view of a board-end terminal block according to this embodiment;

fig. 16 is a schematic structural view of the board-end terminal block according to the present embodiment when the board-end terminal is mounted;

fig. 17 is a schematic structural view of the board end terminal block provided in this embodiment in the axial direction;

fig. 18 is a schematic perspective view of another board terminal block provided in this embodiment;

fig. 19 is a schematic structural view of the plate-end terminal block according to the present embodiment when the sealing cap is mounted.

Wherein, 1-line terminal seat, 11-main body, 111-limit structure, 1111-first fool-proof rib, 112-second containing cavity, 113-plug hole, 114-second fool-proof rib, 115-clamp hole, 12-first claw, 121-first press structure, 122-first clamp protrusion, 13-rear cover, 131-key through hole, 1311-groove, 132-threading counter hole, 1321-threading hole, 133-second clamp protrusion, 134-first limit protrusion, 135-second limit protrusion, 2-board terminal seat, 21-board terminal body, 211-first containing cavity, 212-thread structure, 213-nut, 214-fixed board structure, 22-annular protrusion, 23-clamp lug, 231-groove, 232-clamp hole, 24-foolproof structure, 241-first foolproof groove, 242-jaw groove, 25-sealing cover, 251-cover plate structure, 252-handle structure, 253-clamp projection, 3-wire protection housing, 31-clamp through hole, 32-second clamp projection, 33-second jaw, 331-third clamp projection, 332-second pressing structure, 34-second foolproof groove, 4-wire terminal, 41-terminal body, 411-wire connection part, 4111-connection part, 4112-support part, 41121-baffle part, 41122-key limit notch, 4113-first fixing part, 4114-second fixing part, 4115-third fixing part, 412-insertion part, 4121-first insertion part, 41211-first intermediate transition section, 41212-first insertion section, 4122-second plug part, 41221-connecting section, 41222-second middle transition section, 41223-second plug section, 413-wire clamping protrusion, 414-strip-shaped groove, 42-spring piece, 421-first connecting section, 422-second connecting section, 423-middle elastic section, 424-wire pressing section, 5-plate end terminal, 6-key, 7-snap ring structure, 8-cable sealing ring and 9-tail nut.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the utility model, the following detailed description is given to the specific embodiments, structures, features and effects of the present invention in conjunction with the accompanying drawings and preferred embodiments.

Examples

The embodiment discloses an improved multi-core electrical connector, which comprises a wire end terminal base 1, a plate end terminal base 2 and a wire protecting shell 3 which are coaxially arranged, as shown in fig. 1 and fig. 2. A plurality of line end terminals 4 are installed in the line end terminal base 1, and a plurality of plate end terminals 5 are installed in the plate end terminal base 2. In this embodiment, an 18-core electrical connector is taken as an example for explanation, that is, 18 terminals are disposed in each of the line end terminal block 1 and the board end terminal block 2. The wire end terminal block 1 is installed in the wire protecting housing 3. The board terminal block 2 is engaged with one end of the wire-protecting housing 3. The board end terminals 5 correspond to the line end terminals 4 one by one, and when the board end terminal base 2 is clamped with the line protecting shell 3, the board end terminals 5 can be inserted into the corresponding line end terminals 4.

As shown in fig. 3, the wire end terminal block 1 includes a main body 11 and a rear cover 13. As shown in fig. 4 to 6, the main body 11 has a plugging end and a threading end in its axial direction, respectively. The insertion end of the main body 11 extends outward along its axial direction to form a limit structure 111. A plurality of second accommodating cavities 112 are arranged in the main body 11, and the axial direction of the second accommodating cavities 112 is consistent with the axial direction of the main body 11. One end of the second accommodating cavity 112 facing the threading end is communicated with the outside of the main body 11. The extending end of the limiting structure 111 is provided with a plurality of inserting holes 113, the inserting holes 113 correspond to the second accommodating cavities 112 one by one, and the inserting holes 113 are communicated with the corresponding second accommodating cavities 112. The main body 11 is provided with a first clamping jaw 12, and the clamping end of the first clamping jaw 12 faces the inserting end. The rear cover 13 is engaged with the threading end of the main body 11, as shown in fig. 8.

As shown in fig. 5, the length direction of the limiting structure 111 is the same as the length direction of the main body 11. Both ends of the limiting structure 111 in the length direction are aligned with both ends of the main body 11 in the length direction. The plurality of inserting holes 113 are divided into a plurality of rows along the width direction of the limiting structure 111, and the plurality of inserting holes 113 in each row are arranged at intervals along the length direction of the limiting structure 111. In this embodiment, an 18-core electrical connector is taken as an example for illustration, so that two rows are provided on the main body 11 of the terminal block 1 shown in fig. 5, and each row is provided with 9 plugging holes 113. Of course, in practical implementation, other rows may be provided on the main body 11 of the wire end terminal block 1, each row may also include other multiple plugging holes 113, for example, three rows may be provided, each row is provided with 10 plugging holes 113, and the like. Correspondingly, the second accommodating cavities 112 are arranged in the main body 11 according to the same rule as the inserting holes 113.

The two sides of the limiting structure 111 in the width direction are respectively provided with a plurality of first fool-proof ribs 1111, as shown in fig. 3 or fig. 5. First length direction of preventing slow-witted muscle 1111 with the axis direction of main part 11 is unanimous, lies in a plurality of first of same side and prevents slow-witted muscle 1111 follows limit structure 111's length direction interval distribution, and is located the first of limit structure 111 both sides prevents slow-witted muscle 1111 quantity difference, can play and prevent slow-witted effect. Of course, the first fool-proof rib 1111 may also perform the fool-proof function in different intervals, different sizes, different shapes, or the like.

As shown in fig. 6, one end of the first claw 12 is connected to the insertion end of the main body 11, the length direction of the first claw 12 is the same as the axial direction of the main body 11, and the first claw 12 is symmetrically disposed on two sides of the limiting structure 111 in the width direction. One side of the first jaw 12, which is far away from the limiting structure 111, is provided with a first pressing structure 121 and a first clamping protrusion 122, and the first clamping protrusion 122 is symmetrically arranged on two sides of the first pressing structure 121 in the length direction of the main body 11. The first pressing structure 121 is preferably an elongated protrusion, and the length direction thereof coincides with the length direction of the body 11. The upper surface of the first pressing structure 121 is provided with an anti-slip structure. The anti-slip structure is preferably a long groove, and the length direction of the long groove is consistent with the length direction of the first pressing structure 121. Of course, the anti-slip structure can also be in other shapes and other arrangement modes. In order to prevent the first pressing structure 121 from being too thick during the manufacturing process, which may result in uneven cooling and thus deformation of the first jaw 12, the first pressing structure 121 may be designed to be material stealing, i.e. the first pressing structure 121 is designed to be hollow. The first clamping protrusion 122 faces one side of the main body 11 and is designed to be an inclined plane, one end of the first clamping jaw 12 faces away from the main body 11, and the inclined plane inclines in the direction of the main body 11, so that the first clamping protrusion 122 can be smoothly clamped with the wire protection shell 3. First protruding 122 of card deviates from one side of main part 11 is the inclined plane design, promptly the joint face of first protruding 122 of card is the inclined plane design, the joint face of first protruding 122 of card is kept away from the one end of first jack catch 12 is towards keeping away from the direction slope of main part 11, and this structural design can guarantee the firm nature of the protruding 122 joint of first card.

As shown in fig. 5, the main body 11 is provided with a plurality of second fool-proof ribs 114 at two sides in the length direction thereof, respectively. The length direction of the second fool-proof rib 114 is consistent with the axial direction of the main body 11, and a plurality of second fool-proof ribs 114 located on the same side are distributed at intervals along the width direction of the main body 11. Preferably, the main body 11 is provided with two second fool-proof ribs 114 on both sides of the length direction thereof, and the intervals between the second fool-proof ribs 114 on both sides of the main body 11 are different, so as to play a fool-proof role. Of course, the second fool-proof rib 114 may also play the fool-proof role in different numbers, different sizes, different shapes, and the like.

As shown in fig. 4 or 5, a plurality of fastening holes 115 are respectively formed on two side walls of the main body 11 in the width direction, and the fastening holes 115 are close to the threading ends. The clamping holes 115 correspond to the accommodating cavities on the outermost side of the main body 11 in the width direction, and the clamping holes 115 are communicated with the corresponding accommodating cavities. The both ends of back lid 13 width direction are provided with the protruding 133 of a plurality of second card respectively, back lid 13 block is in during the threading end of main part 11, the protruding 133 of second card with card hole 115 one-to-one, just the protruding 133 of second card and the card hole 115 joint that corresponds.

As shown in fig. 3 and 9, the rear cover 13 is provided with a key through hole 131 and a threading counterbore 132 corresponding to each of the second receiving cavities 112. The key through hole 131 is located at one side of the threading counter bore 132 in the width direction of the rear cover 13, a threading hole 1321 is formed in the threading counter bore 132, and the threading hole 1321 penetrates through the rear cover 13. On the opposite surface of the rear cover 13 and the main body 11, a first limiting protrusion 134 is disposed at a position corresponding to each threading counter bore 132, and the threading hole 1321 penetrates through the first limiting protrusion 134, as shown in fig. 7. On a side surface of the rear cover 13 far away from the main body 11, second limiting protrusions 135 are respectively arranged on two sides of the key through hole 131 in the length direction of the rear cover 13. The length direction of the second position-limiting protrusion 135 is identical to the width direction of the rear cover 13. One side of the second position-limiting protrusion 135 is aligned with the inner wall of the key through-hole 131. The key through hole 131 is respectively provided with a groove 1311 on the inner walls of both sides of the rear cover 13 in the length direction, the length direction of the groove 1311 is identical to the axial direction of the key through hole 131, and one end of the groove 1311 extends to one side of the second limiting protrusion 135 and penetrates through the end of the second limiting protrusion 135.

As shown in fig. 11, the wire end terminal block 1 is clamped to the sidewall of the wire protecting housing 3 by the first clamping claws 12, and the limiting structure 111 faces the board end terminal block 2. The wire protecting shell 3 is provided with a clamping end and a threading end along the axis direction. The wire end terminal block 1 is installed at a position close to the clamping end. The lateral wall of the wire protecting shell 3 is provided with clamping through holes 31 corresponding to the positions of the first clamping jaws 12, and the first clamping jaws 12 are clamped with the corresponding clamping through holes 31. As shown in fig. 12 and 13, one side of the clamping through hole 31 runs through the end face of the clamping end, the clamping through hole 31 is in two inner walls of the main body 11 in the length direction are respectively provided with a second clamping protrusion 32, the first clamping jaw 12 corresponds to the clamping through hole 31 in clamping, the first pressing structure 121 is located between the second clamping protrusions 32, the first clamping protrusion 122 is in clamping connection with the second clamping protrusion 32, and the upper surface of the first pressing structure 121 is not higher than the outer wall surface of the wire protection shell 3. The two sides of the wire protecting shell 3 in the length direction are respectively provided with a second clamping jaw 33, and the length direction of the second clamping jaw 33 is consistent with the axial direction of the wire protecting shell 3. One end of the second clamping jaw 33 is connected with the outer wall surface of the wire protecting shell 3, the other end of the second clamping jaw 33 is a free end, and the free end faces the wire penetrating end. The outer side of the second jaw 33 is provided with a third clamping protrusion 331, and the free end is provided with a second pressing structure 332. The inner wall of the wire protecting shell 3 is provided with a second fool-proof groove 34, the wire end terminal block 1 is installed in the wire protecting shell 3, the second fool-proof ribs 114 at two sides of the main body 11 of the wire end terminal block 1 are matched and inserted with the second fool-proof groove 34, the fool-proof effect is achieved, and the error installation direction of the wire end terminal block 1 is prevented. The threading end of the thread protecting shell 3 is provided with a thread structure, and the end part of the thread protecting shell is provided with a tooth-shaped structure. A snap ring structure 7 is arranged at the threading end of the thread protecting shell 3, and a tooth-shaped structure on the snap ring structure 7 is clamped with the tooth-shaped structure at one end of the thread protecting shell 3. The cable is inserted into the wire protecting shell 3 from the snap ring structure 7 and is connected with the wire end terminal 4 in the wire end terminal base 1, and then is fastened through the tail nut 9. Still be provided with cable sealing washer 8 in the snap ring structure 7, 8 covers of cable sealing washer are established between cable and snap ring structure 7.

As shown in fig. 14, the line end terminal 4 includes a terminal main body 41 and a spring piece 42. The terminal body 41 is integrally formed by pressing a metal plate material, preferably, a phosphor bronze material. The terminal body 41 includes a wire connection portion 411 and a plug portion 412 in this order along its length direction. The wiring portion 411 includes a connecting portion 4111, a supporting portion 4112, and a fixing portion, which are connected in sequence. The longitudinal direction of the connecting portion 4111 coincides with the longitudinal direction of the line end terminal 4. The fixing portion is opposite to the connecting portion 4111, one end of the elastic piece 42 is connected to the fixing portion, the other end of the elastic piece 42 is a free end, the free end extends and bends towards one side far away from the inserting portion 412, and the free end abuts against one side of the connecting portion 4111. The plug part 412 comprises a first plug part 4121 and a second plug part 4122, the length direction of the first plug part 4121 and the length direction of the second plug part 4122 are both consistent with the length direction of the connecting part 4111, one end of the first plug part 4121 is connected with the connecting part 4111, one end of the second plug part 4122 is connected with the supporting part 4112, the first plug part 4121 and the second plug part 4122 are oppositely arranged, and the other end of the first plug part 4121 and the other end of the second plug part 4122 extend in the direction away from the elastic piece 42.

The supporting portion 4112 is perpendicular to the connecting portion 4111, and the fixing portion and the connecting portion 4111 are located on the same side of the supporting portion 4112. The fixing portions include a first fixing portion 4113, a second fixing portion 4114, and a third fixing portion 4115. The length direction of the first fixing portion 4113 and the length direction of the second fixing portion 4114 are respectively consistent with the length direction of the connecting portion 4111. First fixed part 4113 and second fixed part 4114 are arranged at intervals in the length direction, and third fixed part 4115 is located between first fixed part 4113 and connecting part 4111. The elastic piece 42 sequentially comprises a first connecting section 421, a second connecting section 422, a middle elastic section 423 and a line pressing section 424. The shell fragment 42 is installed when on the terminal main body 41, first connection segment 421 is located between first fixed part 4113 and the third fixed part 4115, second connection segment 422 is located second fixed part 4114 is kept away from one side of connecting part 4111, through right first fixed part 4113, second fixed part 4114 and third fixed part 4115 carry out the dislocation design, can firmly with shell fragment 42 joint is on terminal main body 41, of course, in order to guarantee the firm nature of installation, also can fix through modes such as welding between each fixed part of shell fragment 42 and terminal main body 41 when necessary. The middle elastic segment 423 is of a bending design, so that the elastic sheet 42 can have certain tension and resilience. The pressing line 424 collides with the connecting portion 4111. A pretightening force is provided between the pressing line segment 424 and the connecting portion 4111, so that a certain clamping force can be effectively maintained between the pressing line segment 424 and the connecting portion 4111. Connecting portion 4111 with be provided with a plurality of card line arch 413 on the one side that the pressure line section 424 contradicts, can increase the frictional force between connecting portion 4111 and the wiring, make the wiring with it is more firm to be connected between the line terminal 4. Connecting portion 4111 with a plurality of bar recess 414 can also be seted up on the one side that the pressure line section 424 contradicts, a plurality of bar recess 414 is followed connecting portion 4111's length direction interval sets up, further increases connecting portion 4111 and the frictional force between the wiring.

The first insertion part 4121 sequentially comprises a first middle transition section 41211 and a first insertion section 41212 along the length direction thereof, one end of the first middle transition section 41211 is connected with the connecting part 4111, the other end of the first middle transition section 41211 inclines towards the direction close to the spring plate 42, and the first insertion section 41212 inclines towards the direction far away from the spring plate 42. The second insertion part 4122 is located on one side of the supporting portion 4112 where the elastic piece 42 is disposed, the second insertion part 4122 sequentially includes a connection section 41221, a second intermediate transition section 41222, and a second insertion section 41223 along a length direction thereof, the connection section 41221 of the second insertion part 4122 is connected to the supporting portion 4112, the connection section 41221 of the second insertion part 4122 is parallel to the connecting portion 4111, the second intermediate transition section 41222 is inclined toward a direction close to the connecting portion 4111, and the second insertion section 41223 is inclined toward a direction away from the connecting portion 4111. One side that the support portion 4112 is provided with the elastic piece 42 is provided with a baffle portion 41121, the baffle portion 41121 is respectively perpendicular to the support portion 4112 and the connecting portion 4111, the baffle portion 41121 is close to the connecting portion 4111. Baffle portion 41121 plays limiting displacement, through setting up baffle portion 41121 can prevent at the board end terminal with when line terminal 4 is pegged graft, the board end terminal inserts excessively.

When the line end terminal 4 is installed in the second receiving cavity 112, the plugging end of the line end terminal 4 faces the plugging hole 113, the plugging hole 113 is aligned with the middle of the first plugging portion 4121 and the second plugging portion 4122 of the line end terminal 4, one end of the board end terminal 5 can pass through the plugging hole 113 to be communicated with the first plugging portion 4121 and the second plugging portion 4122, and the first plugging section 41212 and the second plugging section 41223 can play a role in guiding, so that one end of the board end terminal 5 can be smoothly inserted between the first plugging portion 4121 and the second plugging portion 4122. When the rear cover 13 is engaged with the threading end of the main body 11, the end of the first stopper protrusion 134 of the rear cover 13 abuts against the end of the corresponding wire end terminal 4, and functions as a stopper as shown in fig. 9 and 10. Each of the key through holes 131 of the rear cover 13 is installed with a key 6, one end of the key 6 abuts against the middle elastic segment 423 of the elastic sheet 42 of the line end terminal 4, as shown in fig. 10, pressing the key 6 can make the line pressing segment 424 of the elastic sheet 42 far away from the connecting portion 4111. One end of the supporting portion 4112, which is away from the insertion portion 412, is provided with a key position-limiting notch 41122, and the key position-limiting notch 41122 can limit the key 6, so as to prevent the key 6 from being pressed excessively. One side of the key 6 contacts with the outer side of the first limiting protrusion 134, and the first limiting protrusion 134 can also play a role in guiding the key 6, so that the key 6 can smoothly move along the axial direction of the line end terminal 4.

As shown in fig. 15 to 19, the board-end terminal block 2 includes a board-end body 21, and the board-end body 21 has a terminal and an engaging end in its axial direction, respectively. The end face of the clamping end extends outwards along the axial direction of the plate end body 21 to form an annular bulge 22 and a fool-proof structure 24. The fool-proof structure 24 is located in the area enclosed by the annular protrusion 22. The inner corners of the annular protrusions 22 are provided with chamfers. The two sides of the annular bulge 22 are provided with clamping lugs 23. A plurality of first accommodating cavities 211 are formed in the board end body 21, and the first accommodating cavities 211 penetrate through the terminal end face and the clamping end face of the board end body 21 respectively. The first receiving cavity 211 is communicated with the area surrounded by the annular protrusion 22. The board end terminal 5 is mounted in the first accommodation cavity 211. The plug-in ends of the board-end terminals 5 extend into the area enclosed by the annular protrusion 22. As shown in fig. 15, the engaging lugs 23 are located on two sides of the annular protrusion 22 in the length direction of the plate end body 21, the length direction of the engaging lugs 23 is consistent with the axial direction of the plate end body 21, and the engaging ends of the engaging lugs 23 extend in the direction away from the plate end body 21. The clamping lug 23 faces one side of the annular protrusion 22, a groove 231 is formed in the clamping lug 23, the length direction of the groove 231 is consistent with that of the clamping lug 23, one end of the groove 231 penetrates through the end face of the clamping end of the clamping lug 23, a clamping hole 232 is formed in the clamping lug 23, and the clamping hole 232 is communicated with the groove 231. When the board terminal block 2 is clamped at one end of the wire protecting shell 3, the clamping end of the wire protecting shell 3 is inserted into the area surrounded by the annular protrusions 22, the clamping lugs 23 on two sides of the annular protrusions 22 are respectively clamped with the corresponding second clamping claws 33, and the board terminal 5 is inserted into the corresponding wire end terminal 4.

As shown in fig. 15 and 16, the fool-proof structure 24 is two strip-shaped protrusions arranged in parallel at intervals, and the length direction of the strip-shaped protrusions is consistent with the length direction of the board end body 21. A plurality of first holding chamber 211 all is located two between the rectangular arch, seted up the first fool-proof recess 241 of a plurality of on two rectangular bellied opposite faces respectively. The length direction of first prevent slow-witted recess 241 with the axis direction of board end body 21 is unanimous, is located a plurality of first prevent slow-witted recesses 241 on same rectangular arch and follows the length direction interval distribution of board end body 21, the first prevent slow-witted recess 241 quantity that is located on two rectangular archs is different, or the interval is different, or the size is different, or the shape is different. When the board terminal block 2 is clamped at one end of the wire-protecting casing 3, the fool-proof structure 24 is inserted into the position-limiting structure 111 and between the wire-protecting casing 3, the first fool-proof groove 241 on the fool-proof structure 24 is inserted into the first fool-proof rib 1111 on the position-limiting structure 111, so as to play the fool-proof role and prevent the board terminal block 2 from being reversely connected with the wire terminal block 1. Two rectangular bellied backs have seted up jack catch recess 242 on the face respectively, one side of jack catch recess 242 is run through rectangular bellied extension end face, the tank bottom of jack catch recess 242 is the inclined plane design, the tank bottom is kept away from the one end of board end body 21 is close to the first direction slope of preventing slow-witted recess 241, and this structural design can guarantee board end terminal seat 2 block is in during the one end of protecting wire shell 3, the entering that first jack catch 12 can be smooth is guaranteed in the jack catch recess 242 board end terminal seat 2 can be smoothly and inseparable block is in the one end of protecting wire shell 3.

The board-end terminal block 2 of the present embodiment may be provided at its terminals with screw structures 212 as shown in fig. 18, and the board-end terminal block 2 is mounted on the surface to be mounted by the screw structures 212 fitting with nuts 213. The plate-end terminal block 2 of the present embodiment may also be provided with a plate fixing structure 214 on the outer peripheral surface of the plate-end body 21, as shown in fig. 15 to 17, the axial direction of the plate fixing structure 214 is the same as the axial direction of the plate-end body 21, and the plate-end terminal block 2 is mounted on the surface to be mounted by the plate fixing structure 214 in cooperation with a fastener.

In a further embodiment, the board end terminal base 2 may further be provided with a sealing cover 25, the sealing cover 25 is clamped at the clamping end of the board end body 21, and the sealing cover 25 seals the area surrounded by the annular protrusion 22 for dust prevention when the connector wire end is removed. As shown in fig. 19, the sealing cover 25 includes a cover structure 251 and a handle structure 252 disposed on one side of the cover structure 251. The handle structure 252 is provided with two clamping protrusions 253 on two sides in the length direction, when the sealing cover 25 is clamped at the clamping end of the plate end body 21, the cover plate structure 251 seals the area surrounded by the annular protrusion 22, two ends of the handle structure 252 in the length direction are respectively clamped into the grooves 231 of the two clamping lugs 23, and the clamping protrusions 253 are clamped with the corresponding clamping holes 232.

As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, including not only those elements listed, but also other elements not expressly listed.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict. The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides an improved generation multicore number electric connector, its characterized in that, it includes line terminal seat (1), board end terminal seat (2), wire casing (3), installs a plurality of line terminal (4) in line terminal seat (1) and install a plurality of board end terminal (5) in board end terminal seat (2), line terminal seat (1), board end terminal seat (2) and wire casing (3) coaxial setting, install line terminal seat (1) in wire casing (3), board end terminal seat (2) block is in the one end of wire casing (3), board end terminal with line terminal (4) one-to-one board line terminal seat (2) with when wire casing (3) block, board end terminal (5) can be pegged graft with the line terminal (4) that correspond.

2. Improved electrical connector according to claim 1, characterized in that the terminal block (1) comprises a main body (11) and first claws (12) arranged on the main body (11), the main body (11) is respectively provided with a plug end and a terminal along the axial direction, the plug end of the main body (11) extends outwards along the axial direction to form a limiting structure (111), one end of the first claw (12) is connected with the inserting end of the main body (11), the length direction of the first claw (12) is consistent with the axial direction of the main body (11), the first clamping jaws (12) are symmetrically arranged at two sides of the limiting structure (111) in the width direction, terminal seat (1) pass through first jack catch (12) with the lateral wall joint of protecting wire shell (3), limit structure (111) orientation board end terminal seat (2).

3. The improved multi-core electrical connector as recited in claim 2, wherein the wire protecting housing (3) has a clamping end and a threading end along an axis direction thereof, the wire end terminal block (1) is mounted at a position close to the clamping end, the wire end terminal block (1) and the wire protecting housing (3) are designed to be foolproof, clamping through holes (31) are respectively formed in a position corresponding to the first clamping jaws (12) on a side wall of the wire protecting housing (3), and the first clamping jaws (12) are clamped with the corresponding clamping through holes (31).

4. The improved electrical connector as claimed in claim 3, wherein a first pressing structure (121) and a first protrusion (122) are provided on a side of the first latch (12) away from the position-limiting structure (111), the first clamping protrusions (122) are symmetrically arranged on two sides of the first pressing structure (121) in the length direction of the main body (11), one side of the clamping through hole (31) penetrates through the end face of the clamping end, second clamping protrusions (32) are respectively arranged on the two inner walls of the clamping through hole (31) in the length direction of the main body (11), when the first clamping claws (12) are clamped with the corresponding clamping through holes (31), the first pressing structure (121) is positioned between the two second clamping bulges (32), the first clamping protrusion (122) is connected with the second clamping protrusion (32) in a clamping mode, and the upper surface of the first pressing structure (121) is not higher than the outer wall surface of the wire protection shell (3).

5. The improved electrical connector as claimed in claim 3, wherein the two sides of the wire-protecting housing (3) in the length direction are respectively provided with a second jaw (33), the length direction of the second jaw (33) is consistent with the axial direction of the wire-protecting housing (3), one end of the second jaw (33) is connected with the outer wall surface of the wire-protecting housing (3), the other end of the second jaw (33) is a free end, the free end faces the threading end, the outer side of the second jaw (33) is provided with a third clamping protrusion (331), and the free end is provided with a second pressing structure (332).

6. The improved electrical connector as claimed in claim 5, wherein the board-end terminal base (2) comprises a board-end body (21), an annular protrusion (22) extends outwardly from an end surface of the board-end body (21) along an axial direction thereof, the annular protrusion (22) is provided at two sides thereof with engaging lugs (23), a plurality of first receiving cavities (211) are provided in the board-end body (21), the first receiving cavities (211) respectively penetrate through a terminal end surface and an engaging end surface of the body, the first receiving cavities (211) communicate with an area defined by the annular protrusion (22), the board-end terminal (5) is installed in the first receiving cavity (211), the plugging end of the board-end terminal (5) extends into the area defined by the annular protrusion (22), and when the board-end terminal base (2) is engaged with one end of the wire-protecting housing (3), the clamping end of the wire protecting shell (3) is inserted into an area surrounded by the annular protrusions (22), clamping lugs (23) on two sides of each annular protrusion (22) are clamped with the corresponding second clamping claws (33) respectively, and the plate end terminal (5) is connected with the corresponding wire end terminal (4) in an inserting mode.

7. The improved electrical connector as claimed in claim 6, wherein a fool-proof structure (24) is disposed in an area surrounded by the annular protrusion (22), and when the board-end terminal block (2) is engaged with one end of the wire-protecting housing (3), the fool-proof structure (24) is inserted between the position-limiting structure (111) and the wire-protecting housing (3), and the fool-proof structure (24) and the position-limiting structure (111) are designed to be fool-proof.

8. The improved electrical connector as claimed in claim 6, wherein said terminal block (1) further comprises a rear cover (13), a plurality of second accommodating cavities (112) are arranged in the main body (11), the axial direction of the second accommodating cavities (112) is consistent with the axial direction of the main body (11), a plurality of inserting holes (113) are arranged at the extending end of the limiting structure (111), the inserting holes (113) are in one-to-one correspondence with the second accommodating cavities (112), the plug holes (113) are communicated with the corresponding second accommodating cavities (112), the line end terminal (4) is installed in the second accommodating cavities (112), the rear cover (13) is clamped at the threading end of the main body (11), when the plate end terminal block (2) is clamped at one end of the wire protection shell (3), one end of the plate end terminal (5) is plugged with the corresponding line end terminal (4) through the plugging hole (113).

9. The improved electrical connector as claimed in claim 8, wherein the terminal block comprises a terminal body (41) and a resilient plate (42), the terminal body (41) sequentially comprises a connecting portion (411) and a plug portion (412) along a length direction thereof, the plug portion (412) faces the plug hole (113), the connecting portion (411) comprises a connecting portion (4111), a supporting portion (4112) and a fixing portion, the connecting portion (4111) has a length direction corresponding to the length direction of the terminal block (4), the fixing portion is opposite to the connecting portion (4111), one end of the resilient plate (42) is connected to the fixing portion, the other end of the resilient plate (42) is a free end, the free end extends and bends towards a side away from the plug portion (412), and the free end abuts against a side of the connecting portion (4111), the inserting part (412) comprises a first inserting part (4121) and a second inserting part (4122), the length direction of the first inserting part (4121) and the length direction of the second inserting part (4122) are consistent with the length direction of the connecting part (4111), one end of the first inserting part (4121) is connected with the connecting part (4111), one end of the second inserting part (4122) is connected with the supporting part (4112), the first inserting part (4121) and the second inserting part (4122) are arranged oppositely, and the other end of the first inserting part (4121) and the other end of the second inserting part (4122) extend towards the direction far away from the elastic sheet (42).

10. The improved electrical connector as claimed in claim 9, wherein a key through hole (131) and a threading counterbore (132) are respectively disposed at a position of the rear cover (13) corresponding to each second receiving cavity (112), the key through hole (131) is located at one side of the threading counterbore (132) in the width direction of the rear cover (13), a threading hole (1321) is formed in the threading counterbore (132), the threading hole (1321) penetrates through the rear cover (13), a key (6) is installed in the key through hole (131), one end of the key (6) abuts against the resilient tab (42), and the free end of the resilient tab (42) can be far away from the connecting portion (4111) by pressing the key (6).

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