CN219739363U - Connector - Google Patents

Abstract

A connector comprises a connector main body, terminals and a terminal position assurance device, wherein a containing cavity is arranged in the connector main body, a fixing table is protruded from the bottom wall of the containing cavity, the fixing table is provided with a terminal containing cavity, the connector main body is provided with a splicing groove, and one side of the splicing groove is provided with a clamping groove; the terminal is arranged in the terminal accommodating cavity, and the outer wall of the terminal is provided with a clamping groove; the terminal position assurance device is provided with three blocking arms with clamping hooks, the terminal position assurance device is inserted into the inserting groove, the blocking arms are matched with the clamping grooves in a clamping way, and the clamping hooks are matched with the clamping grooves in a clamping way. According to the utility model, the blocking arm is clamped with the clamping groove to block the terminal from being separated from the terminal accommodating cavity, and the clamping hook is clamped with the clamping groove to block the terminal position assurance device from being separated from the inserting groove.

Description

Connector

Technical Field

The utility model relates to the technical field of connectors, in particular to a connector.

Background

With the development of new energy automobile field, high-voltage connector wide application, in the electric connector field, there are many electrical circuit all to need to be connected with the terminal, most of current uses all are to inserting terminal and tube-shape terminal to insert and realize being connected, the terminal adopts the terminal position assurance ware fixed on the connector main part, traditional terminal position assurance ware has the barrier arm to insert to lock the terminal in the connector main part, but traditional terminal position assurance ware only relies on the barrier arm card to hold in the recess of connector main part inside both sides, set up the barrier piece card on the barrier arm and hold in the corresponding joint portion of connector main part, but in the use and vehicle advancing process, the terminal position assurance ware receives the vibration, the barrier arm is deviate from in the recess easily, the barrier piece also deviate from in the joint portion, the problem that looseness and the deviate from of terminal position assurance ware lead to the terminal to deviate from in the connector main part, moreover, the corner department of connection between the parallel barrier arms also receives the vibration easily and the fracture leads to the terminal position assurance ware to damage, the terminal obtains reliable fixing to deviate from in the connector main part, produce the power consumption danger.

Therefore, a new solution is needed to solve the above problems.

Disclosure of Invention

In order to solve the above problems, the present utility model provides a connector.

The connector comprises a connector main body, terminals and a terminal position assurance device, and is characterized in that an accommodating cavity is arranged in the connector main body, the accommodating cavity is provided with a bottom wall, a fixed table is protruded from the bottom wall, at least two terminal accommodating cavities are arranged on the fixed table, a plugging groove penetrating through the fixed table is formed in the connector main body, and a clamping groove is formed in one side of the plugging groove; the terminal is arranged in the terminal accommodating cavity, and a clamping groove is formed in the outer wall of the terminal; the terminal position assurance device comprises a connecting part and three blocking arms arranged on one side of the connecting part, and at least one clamping hook is arranged on one side of each blocking arm far away from the connecting part; the terminal position assurance device is inserted into the inserting groove, the blocking arm is matched with the clamping groove in a clamping way so as to block the terminal from being separated from the terminal accommodating cavity, and the clamping hook is matched with the clamping groove in a clamping way so as to block the terminal position assurance device from being separated from the inserting groove.

Preferably, a blocking block is arranged on the side edge of the blocking arm at a position corresponding to the clamping groove, and the blocking block is matched with the clamping groove in a clamping way so as to block the terminal from being separated from the terminal accommodating cavity.

Preferably, the three blocking arms are arranged in parallel, two elastic support arms are arranged at one end, far away from the connecting part, of the middle blocking arm, the clamping hooks are oppositely arranged at the end parts of the elastic support arms, and the clamping hooks are matched with the clamping grooves in a clamping manner so as to block the terminal position assurance device from being separated from the inserting grooves.

Preferably, the insertion groove passes through a part of the terminal accommodating chamber, and at least a part of the blocking arm is located in the terminal accommodating chamber when the terminal position assurance device is inserted into the insertion groove.

Preferably, the plugging groove comprises two grooves arranged on opposite sides of the fixed table and a plugging hole penetrating through the fixed table, and the clamping groove is respectively arranged on the end surfaces of the grooves and the plugging hole, which are far away from one side of the connecting part; the blocking arms comprise end blocking arms positioned on two sides and middle blocking arms positioned between the two end blocking arms, the end blocking arms are in plug-in fit with the grooves, and the middle blocking arms are in plug-in fit with the plug-in holes.

Preferably, the terminal receiving cavity is located between the end blocking arm and the intermediate blocking arm.

Preferably, the accommodating cavity is provided with a side wall, a gap is formed between the periphery of the fixing table and the side wall, and the inserting groove penetrates through the side wall and is positioned on one side opposite to the clamping groove.

Preferably, a sealing ring is arranged between the bottom wall and the terminal position assurance device, and the sealing ring is sleeved on the periphery of the fixed table and in interference fit with the fixed table.

Preferably, the connector further comprises a cable electrically connected with the terminal, and a tail cap detachably connected with the connector body, wherein the tail cap is provided with a containing hole penetrating through the cable.

Preferably, at least one clamping lug is arranged on the side face of the tail cover, a clamping hole is formed in the clamping lug, and a clamping protruding portion clamped with the clamping hole is arranged on the outer wall of the connector main body.

The utility model has the following beneficial effects:

the terminal position assurance device is provided with three blocking arms, the end blocking arms at two sides are in plug-in fit with the two grooves at the opposite sides of the fixed table, the clamping hooks of the end blocking arms are clamped at the edges of the grooves to realize heavy locking, the middle blocking arm is provided with two elastic support arms, the elastic support arms are elastic, the ends of the elastic support arms are provided with opposite clamping hooks, the elastic support arms enter the clamping grooves along with the middle blocking arms, the clamping hooks at the ends of the elastic support arms penetrate through the clamping grooves to be clamped at the edges at two sides of the clamping grooves to realize second heavy locking, and the double locking can fix the terminal position assurance device on the connector body, so that the terminals are fixed in the terminal accommodating cavity, and the electricity utilization safety of the connector in the use process is ensured.

Drawings

FIG. 1 is a schematic view of a connector according to the present utility model;

FIG. 2 is a schematic view of a connector body according to the present utility model;

FIG. 3 is a schematic view of a terminal position assurance device according to the present utility model;

FIG. 4 is a schematic view of the structure of the terminal position assurance device and terminals of the present utility model;

fig. 5 is a schematic view of another angle structure of the connector body of the present utility model.

Fig. 6 is a partial structural cross-sectional view of the connector body of the present utility model.

Fig. 7 is a partial structural cross-sectional view of the connector body of the present utility model.

Fig. 8 is a schematic structural view of the connector body, tail cap and cable of the present utility model.

In the figure, 1-connector body, 13-clamping boss, 14-accommodation cavity, 15-fixed stage, 151-terminal accommodation cavity, 152-clamping groove, 153-groove, 154-side wall, 155-plug hole, 16-plug groove, 4-terminal, 41-clamping groove, 5-terminal position assurance device, 51-connecting part, 52-end blocking arm, 53-blocking block, 54-clamping hook, 55-middle blocking arm, 56-elastic support arm, 6-tail cover, 61-clamping lug, 62-clamping hole, 7-cable and 9-sealing ring.

Detailed Description

The present utility model is described in further detail below to enable those skilled in the art to practice the utility model by reference to the specification. For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings. Where the terms "first," "second," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," etc. may explicitly or implicitly include one or more such features. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more. In the description of the present utility model, unless otherwise indicated, the term "coupled" is to be interpreted broadly, and for example, may be fixedly coupled, may be detachably coupled, may be directly coupled, and may be indirectly coupled through an intermediate medium, so that it will be apparent to those skilled in the art that the specific meaning of the term in this patent may be understood in light of the specific circumstances.

The utility model provides a connector, as shown in fig. 1-8, comprising a connector main body 1, a terminal 4 and a terminal position assurance device 5, wherein a containing cavity 14 is arranged in the connector main body 1, the containing cavity 14 is provided with a bottom wall, a fixed table 15 is protruded from the bottom wall, the fixed table 15 is provided with at least two terminal containing cavities 151, the connector main body 1 is provided with a plugging groove 16 penetrating through the fixed table 15, and one side of the plugging groove 16 is provided with a clamping groove 152; the terminal 4 is arranged in the terminal accommodating cavity 151, and a clamping groove 41 is formed in the outer wall of the terminal 4; the terminal position assurance device 5 comprises a connecting portion 51 and three blocking arms arranged on one side of the connecting portion 51, wherein at least one clamping hook 54 is arranged on one side of each blocking arm away from the connecting portion 51; the terminal position assurance device 5 is inserted into the insertion groove 16, the blocking arm is in clamping fit with the clamping groove 41 so as to block the terminal 4 from being separated from the terminal accommodating cavity 151, and the clamping hook 54 is in clamping fit with the clamping groove 152 so as to block the terminal position assurance device 5 from being separated from the insertion groove 16.

With the development of the new energy automobile field, the high-voltage connector is widely applied, in the electric connector field, a plurality of electric loops are all required to be connected by terminals, at present, most of the use is to connect the opposite-plug terminals and the cylindrical terminals, the terminals are fixed by adopting the terminal position assurance device 5 on the connector main body 1, the traditional terminal position assurance device 5 is provided with blocking arms which are inserted into the connector main body 1 to lock the terminals 4, but the traditional terminal position assurance device 5 is only blocked in grooves 153 on two sides of the connector main body 1 by the blocking arms, although the blocking arms are provided with blocking blocks 53 which are blocked in corresponding clamping parts of the connector main body 1, the terminal position assurance device 5 is subjected to vibration, the blocking arms are easy to break out from the grooves 153, the blocking blocks 53 are also broken out from the clamping parts, the loosening and the break-out of the terminal position assurance device 5 are easy to break the terminals 4 from the connector main body 1, and the corners connected between the parallel blocking arms are also easy to be subjected to vibration, the terminal position assurance device 5 is damaged, and the terminals 4 are difficult to break down from the connector main body 1, and the danger of electrical use is generated.

The fixed station 15 is provided with the terminal and holds the chamber 151, the terminal 4 is inserted in the terminal holds the chamber 151 along the direction of insertion, terminal position assurance ware 5 inserts the fixed station 15 inside from jack groove 16 one side, the pothook 54 that three of terminal position assurance ware 5 blocked the arm and the block groove 152 joint of fixed station 15 can be fixed terminal position assurance ware 5 on connector main part 1, three of position assurance ware 5 block the arm can with the draw-in groove 41 joint of terminal 4, owing to the setting of pothook 54 structure, terminal position assurance ware 5 can be fixed on connector main part 1, and then guarantee that terminal 4 is fixed in terminal holds the chamber 151, guarantee that the connector is with electric safety.

In some embodiments, a blocking piece 53 is disposed on a side of the blocking arm at a position corresponding to the clamping groove 41, and the blocking piece 53 is in clamping fit with the clamping groove 41 so as to block the terminal 4 from being separated from the terminal accommodating cavity 151.

The blocking piece 53 is engaged with the engaging groove 41 to prevent the terminal 4 from moving and falling in a direction opposite to the direction in which it is inserted into the terminal accommodating chamber 151, and also to prevent the terminal from rotating about the axis in the terminal accommodating chamber 151.

In some embodiments, three blocking arms are disposed parallel to each other, two elastic arms 56 are disposed at an end of the middle blocking arm away from the connecting portion 51, the hooks 54 are disposed at end portions of the elastic arms 56, and the hooks 54 are engaged with the engaging grooves 152 in a clamping manner, so as to prevent the terminal position assurance device 5 from being disengaged from the inserting grooves 16.

The terminal position assurance device 5 is inserted into the insertion groove 16, and the two opposite hooks 54 penetrate through the clamping groove 152 along with the blocking arm in the middle and are buckled on the outer edges of the two sides of the clamping groove 152, so that the terminal position assurance device 5 is blocked from being separated from the insertion groove 16.

In some embodiments, the insertion slot 16 passes through a portion of the terminal receiving cavity 151, and at least a portion of the blocking arm is located within the terminal receiving cavity 151 when the terminal position assurance device 5 is inserted into the insertion slot 16.

At least part of the blocking arm is positioned in the terminal accommodating cavity 151 to ensure that the blocking arm is in contact and clamping connection with the clamping groove 41 of the terminal 4, so that the terminal 4 is blocked from being separated from the terminal accommodating cavity 151.

In some embodiments, the plugging slot 16 includes two grooves 153 disposed on opposite sides of the fixing table 15, and a plugging hole 155 passing through the fixing table 15, and the engaging slot 152 is disposed on an end surface of the grooves 153 and the plugging hole 155 away from the connecting portion 51, respectively; the blocking arms include end blocking arms 52 at both sides and an intermediate blocking arm 55 between the two end blocking arms 52, the end blocking arms 52 are in plug-in fit with the grooves 153, and the intermediate blocking arms 55 are in plug-in fit with the plug holes 155.

The end blocking arm 52 is in plug-in fit with the groove 153, the clamping hooks of the end blocking arm 52 are clamped at the edge of the groove 153 to realize the clamping fixation of the position assurance device 5 and the fixed table 15, the clamping hooks of the middle blocking arm 55 pass through the plug-in holes 155 along with the middle blocking arm 55 to be clamped and fixed with the edge of the clamping groove 152, and the double clamping can block the terminal position assurance device 5 from being separated from the connector main body 1.

In some embodiments, the terminal receiving cavity 151 is located between the end blocking arm 52 and the intermediate blocking arm 55.

The terminal accommodating chamber 151 is provided between the end blocking arm 52 and the intermediate blocking arm 55, and the terminal position assurance device 5 is inserted from the insertion groove 16 after the terminal 4 is inserted into the terminal accommodating chamber 151, and the blocking pieces 53 on the end blocking arm 52 and the intermediate blocking arm 55 can be caught in the catching groove 41 of the terminal 4, preventing the terminal 4 from falling off from the terminal accommodating chamber.

In some embodiments, the accommodating cavity 14 has a side wall 154, a gap is provided between the periphery of the fixing table 15 and the side wall 154, and the inserting groove 16 penetrates through the side wall 154 to be located at a side opposite to the engaging groove 152.

The gap between the outer periphery of the fixing base 15 and the side wall 154 can be used for inserting the matched sheath, the inserting groove 16 is positioned on the opposite side of the clamping groove 152, and after the terminal position assurance device 5 is inserted from the inserting groove 16, the clamping hook 54 of the blocking arm can be matched with the clamping groove 152 in a clamping way so as to block the terminal position assurance device 5 from being separated from the inserting groove 16.

In some embodiments, a sealing ring 9 is disposed between the bottom wall and the terminal position assurance device 5, and the sealing ring 9 is sleeved on the periphery of the fixing table 15 and is in interference fit with the fixing table 15.

The sealing ring 9 plays a sealing role, and prevents external water and impurities from entering into the junction of the terminal 4 and the cable 7 from the joint of the terminal position assurance device 5 and the terminal 4, thereby influencing the service life of the junction.

In some embodiments, the connector further comprises a cable 7 electrically connected to the terminal 4, and a tail cap 6 detachably connected to the connector body 1, wherein the tail cap 6 is provided with a receiving hole penetrating through the cable 7.

The terminal 4 electricity is connected with the cable 7, and the cable 7 passes the accommodation hole of tail cap 6, and the cable 7 can be connected the inside different electrical apparatus transmission electric energy of vehicle, because the setting of tail cap 6, can be more firm with the junction of cable 7 and terminal 4, plays the guard action to the junction, guarantees the electrical safety.

In some embodiments, at least one clamping lug 61 is disposed on the side surface of the tail cover 6, the clamping lug 61 is provided with a clamping hole 62, and the outer wall of the connector main body 1 is provided with a clamping protruding portion 13 clamped with the clamping hole 62.

The clamping hole 62 and the clamping protruding portion 13 are clamped to fix the tail cover 6 on the connector main body 1, so that cables in the connector main body 1 are guaranteed, the service life of the cables is prolonged, the tail cover 6 can ensure that positions of the cables 7 penetrating out of the connector main body 1 are not pulled and broken by external force, and the service life of the cables 7 is prolonged.

Although embodiments of the present utility model have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the utility model would be readily apparent to those skilled in the art, and accordingly, the utility model is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.

Claims (10)

1. The connector comprises a connector main body, terminals and a terminal position assurance device, and is characterized in that an accommodating cavity is arranged in the connector main body, the accommodating cavity is provided with a bottom wall, a fixed table is protruded from the bottom wall, at least two terminal accommodating cavities are arranged on the fixed table, a plugging groove penetrating through the fixed table is formed in the connector main body, and a clamping groove is formed in one side of the plugging groove; the terminal is arranged in the terminal accommodating cavity, and a clamping groove is formed in the outer wall of the terminal; the terminal position assurance device comprises a connecting part and three blocking arms arranged on one side of the connecting part, and at least one clamping hook is arranged on one side of each blocking arm far away from the connecting part;

the terminal position assurance device is inserted into the inserting groove, the blocking arm is matched with the clamping groove in a clamping way so as to block the terminal from being separated from the terminal accommodating cavity, and the clamping hook is matched with the clamping groove in a clamping way so as to block the terminal position assurance device from being separated from the inserting groove.

2. A connector as defined in claim 1, wherein: the position on the side of the blocking arm, which corresponds to the clamping groove, is provided with a blocking block, and the blocking block is matched with the clamping groove in a clamping way so as to block the terminal from being separated from the terminal accommodating cavity.

3. A connector as defined in claim 1, wherein: the three blocking arms are arranged in parallel, two elastic support arms are arranged at one end, away from the connecting part, of the middle blocking arm, the clamping hooks are arranged at the end parts of the elastic support arms in a relative mode, and the clamping hooks are matched with the clamping grooves in a clamping mode to block the terminal position assurance device from being separated from the inserting grooves.

4. A connector as defined in claim 1, wherein: the insertion groove passes through a part of the terminal accommodating cavity, and when the terminal position assurance device is inserted into the insertion groove, at least a part of the blocking arm is positioned in the terminal accommodating cavity.

5. A connector as defined in claim 1, wherein: the inserting groove comprises two grooves arranged on opposite side surfaces of the fixed table and an inserting hole penetrating through the fixed table, and the clamping groove is respectively arranged on the end surfaces of the grooves and the inserting hole, which are far away from one side of the connecting part; the blocking arms comprise end blocking arms positioned on two sides and middle blocking arms positioned between the two end blocking arms, the end blocking arms are in plug-in fit with the grooves, and the middle blocking arms are in plug-in fit with the plug-in holes.

6. A connector as defined in claim 5, wherein: the terminal receiving cavity is located between the end blocking arm and the intermediate blocking arm.

7. A connector as defined in claim 1, wherein: the accommodating cavity is provided with a side wall, a gap is reserved between the periphery of the fixing table and the side wall, and the inserting groove penetrates through the side wall and is positioned on one side opposite to the clamping groove.

8. A connector as defined in claim 1, wherein: a sealing ring is arranged between the bottom wall and the terminal position assurance device, and the sealing ring is sleeved on the periphery of the fixed table and in interference fit with the fixed table.

9. A connector as defined in claim 1, wherein: the connector further comprises a cable electrically connected with the terminal and a tail cover detachably connected with the connector body, wherein the tail cover is provided with a containing hole penetrating through the cable.

10. A connector as defined in claim 9, wherein: the tail cover side is provided with at least one card ear, the card ear is provided with the block hole, connector main part outer wall be provided with the joint bellying of block hole joint.