Connector and connector assembly

Abstract

The utility model discloses a connector and a connector assembly. The connector assembly comprises a connector and a mating connector. The connector main body is a cylinder, a connector shell is arranged on the connector main body, and the secondary locking block is clamped and matched with the connector shell; the matching connector main body is a cylinder with a rectangular groove and is provided with a matching connector shell. According to the utility model, the elastic arms are integrated in the connector housing, so that elastic lock catch parts are reduced; in the whole unlocking process, the elastic arm is hidden in the secondary locking block all the time, so that the fingers of a person cannot make contact with the elastic arm for unlocking, and the elastic lock catch can be effectively prevented from being unlocked accidentally; the elastic arm is provided with a protruding blocking part matched with the secondary locking block, and when the connector and the matched connector are not inserted in place, the blocking part blocks the secondary locking block at the initial position, so that the secondary locking block is prevented from moving. Only when the connector is matched with the matching connector in place, the matching connector shell pushes and presses the elastic arm, so that the blocking part on the elastic arm is separated from the secondary locking block, and the secondary locking block is allowed to move from the preassembling position to the locking position.

Description

Technical Field

[0001] The utility model belongs to the field of new energy connectors, and in particular relates to a connector and a connector assembly. Background Art

[0002] After the high-voltage connector and the mating connector are locked together, additional parts are needed to strengthen the locking, that is, the connector secondary locking mechanism connector position assurance (CPA) described in the terms and definitions 3.12 of the industry standard QC / T 1067.1-2017 - an additional locking mechanism added to the locking mechanism of the connector.

[0003] Existing Technical Solution 1: The secondary locking mechanism of the connector has a complex structure and usually requires two or more additional parts in addition to the shell to be implemented, which makes the operation cumbersome; Existing Technical Solution 2: When the secondary locking mechanism is unlocked to the pre-locking position, the elastic lock can be touched by human fingers, and the locking relationship between the connector and the mating connector can be directly released by hand, which leads to the risk of the elastic lock being accidentally unlocked, and the safety is not high.

[0004] Chinese patent CN 215119418 U discloses a connector and a connector assembly. The connector includes: a housing, suitable for being inserted into a mating housing of a mating connector; an elastic lock, arranged on the outer wall of the housing, having a lock portion suitable for being locked to the mating housing and an unlocking portion for unlocking the lock portion; and a connection position safety, installed on the outer wall of the housing, suitable for moving between a safety position that prevents the elastic lock from being unlocked and a pre-locking position that allows the elastic lock to be unlocked. When the lock portion is locked to the mating housing and the connection position safety is in the pre-locking position, the unlocking portion is hidden inside the connection position safety, so that human fingers cannot touch the unlocking portion, thereby effectively preventing the elastic lock from being accidentally unlocked, thereby improving the safety of the connector. However, this patent still requires two parts, the elastic lock 110 and the connection position safety 120, to realize the secondary locking function, which is too cumbersome.

[0005] Chinese patent CN 115117669 A discloses a connector and a connector assembly. The connector assembly includes: a first connector, including a first housing and a first terminal hole arranged in the first housing; and a second connector, suitable for mating with the first connector, including a second housing and a second terminal hole arranged in the second housing, the first housing is suitable for partially inserting into the second housing along its axial direction, an elastic lock adapted to be locked to the second housing is formed on the first housing, a lock safety capable of moving along its circumferential direction is installed on the second housing, the lock safety is suitable for moving between a safety position preventing the elastic lock from being unlocked and a pre-locking position pre-installing the elastic lock on the second housing, and a push portion adapted to place the lock safety in the pre-locking position is formed on the first housing. Therefore, before plugging the first and second connectors, the operator does not need to check whether the lock safety has been reset to the pre-locking position, and the operation is very simple and safe to use. The patentee can touch the elastic lock with his fingers, and can directly release the locking relationship between the connector and the mating connector by hand, which results in the risk of the elastic lock being accidentally unlocked, and the safety is not high. Utility Model Content

[0006] In view of the above problems, the utility model designs a connector and a connector assembly, and the specific technical scheme is as follows: a connector and a connector assembly, characterized in that it includes a connector and a mating connector;

[0007] The connector body is cylindrical, on which a connector housing is arranged, and the secondary locking block is engaged with the connector housing on the connector;

[0008] The mating connector body is a cylinder with a rectangular groove, on which a mating connector housing is arranged;

[0009] The outer diameter of one end of the connector is smaller than the inner diameter of one end of the mating connector, which facilitates mutual matching.

[0010] Furthermore, a slide rail groove is provided at one end of the connector housing, an elastic arm extends from the other side, and a locking platform is provided at the middle position of the elastic arm;

[0011] Furthermore, a blocking protrusion is provided at the end of the elastic arm;

[0012] Furthermore, a limiting step is provided on the suspended lower side of the elastic arm, and the limiting groove is provided on the limiting step.

[0013] The secondary locking block is hollowed out in the middle, a square unlocking hole is arranged in the middle of the outer layer, and a trapezoidal locking retaining boss is arranged at the bottom of the hollowed-out part of the inner layer;

[0014] Furthermore, a slide rail is provided on the outer side of the secondary locking block;

[0015] Furthermore, a rectangular blocking portion is provided on the upper portion of the hollowed-out portion of the inner layer of the secondary locking block;

[0016] Furthermore, a limiting protrusion of a trapezoidal long block is provided on the edge of one end of the bottom of the outer layer of the secondary locking block.

[0017] The secondary locking block is pre-installed in the position where the limiting protrusion cooperates with the limiting step to limit the secondary locking block from moving backward; and the blocking portion cooperates with the blocking protrusion to limit the secondary locking block from moving forward.

[0018] When the connector and the mating connector are in place, the locking hanger enters the locking hole to lock the position of the connector and the mating connector.

[0019] Furthermore, during the mating process, the elastic arm is pushed by the mating connector housing, so that the blocking portion on the elastic arm is separated from the secondary locking block, so as to allow the secondary locking block to move from the pre-installed position to the locked position.

[0020] Furthermore, the limiting protrusion enters the limiting groove and reaches the final locking position. At this time, the locking retaining boss abuts against the lower side of the elastic arm, and the elastic arm cannot deform downward, thereby realizing the locking enhancement function.

[0021] The advantages and effects of this application are as follows:

[0022] 1. The utility model reduces the number of elastic lock parts by integrating the elastic arm into the connector housing; during the entire unlocking process, the elastic arm is always hidden inside the secondary lock block, so that human fingers cannot touch the elastic arm to unlock, which can effectively prevent the elastic lock from being accidentally unlocked.

[0023] 2. The utility model provides a raised blocking portion on the elastic arm that cooperates with the secondary locking block. When the connector and the mating connector are not inserted into place, the blocking portion blocks the secondary locking block in the initial position to prevent the secondary locking block from moving. Only when the connector and the mating connector are mated into place, the elastic arm is pushed by the mating connector housing to separate the blocking portion on the elastic arm from the secondary locking block, so as to allow the secondary locking block to move from the pre-installed position to the locked position.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0025] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0027] Figure 1 A schematic diagram of a connector and a connector assembly structure

[0028] Figure 2 Schematic diagram of the matching connector structure

[0029] Figure 3 Schematic diagram of the connector housing structure

[0030] Figure 4 Schematic diagram of the connector housing structure

[0031] Figure 5 A top view of the secondary lock block

[0032] Figure 6 A bottom-up stereogram of the secondary lock block

[0033] Figure 7 Sectional view of secondary lock block

[0034] Figure 8 After the secondary lock block is pre-installed, the overall cross-sectional view of the component

[0035] Fig. 9 Figure 2.2 shows the locking position of the connector and the mating connector.

[0036] Fig.10 The secondary lock block moves from the pre-installed position to the locked position.

[0037] Fig.11 The final locking position diagram

[0038] Reference numerals: 10-connector; 100-connector housing; 101-slide rail groove; 102-elastic arm; 103-locking hanging platform; 104-blocking protrusion; 105-limiting step; 106-limiting groove; 110-secondary locking block; 111-unlocking hole; 112-locking holding platform; 113-slide rail; 114-blocking part; 115-limiting protrusion; 20-matching connector; 200-matching connector housing; 201-matching wall; 202-locking hole; Specific embodiments

[0039] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0040] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0041] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0042] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and next associated objects are in an "or" relationship.

[0043] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0044] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusions.

[0045] Example 1

[0046] This embodiment introduces the structure of a connector and a connector assembly.

[0047] like Figure 1 , Figure 2 As shown, Figure 1 A schematic diagram of a connector and a connector assembly structure. Figure 2 Schematic diagram of the matching connector structure.

[0048] A connector and a connector assembly, characterized by comprising a connector 10 and a mating connector 20;

[0049] The connector 10 body is cylindrical, on which a connector housing 100 is disposed, and a secondary locking block 110 is engaged with the connector housing 100 on the connector 10;

[0050] The main body of the mating connector 20 is a cylinder with a rectangular groove, on which a mating connector housing 200 is arranged;

[0051] The outer diameter of one end of the connector 10 is smaller than the inner diameter of one end of the matching connector 20, so as to facilitate mutual cooperation.

[0052] Example 2

[0053] This embodiment further illustrates the structure of a connector and a connector assembly based on the above embodiments.

[0054] like Figure 3 , 4 As shown, Figure 3 Schematic diagram of the connector housing structure. Figure 4 Schematic diagram of the connector housing structure.

[0055] The connector housing 100 is provided with a slide rail groove 101 at one end, an elastic arm 102 extends from the other side, and a locking platform 103 is provided in the middle of the elastic arm 102;

[0056] Preferably, a blocking protrusion 104 is provided at the end of the elastic arm 102;

[0057] Preferably, a limiting step 105 is provided on the suspended lower side of the elastic arm 102 , and a limiting groove 106 is provided on the limiting step 105 .

[0058] like Figure 5 , 6 , 7, Figure 5 This is a top view of the secondary lock block. Figure 6 This is a three-dimensional upward view of the secondary lock block. Figure 7 This is a cross-sectional view of the secondary locking block.

[0059] The secondary locking block 110 is hollowed out in the middle, a square unlocking hole 111 is provided in the middle of the outer layer, and a trapezoidal locking and holding boss 112 is provided at the bottom of the inner layer hollowed out portion;

[0060] Preferably, a slide rail 113 is provided on the outer side of the secondary locking block 110;

[0061] Preferably, a rectangular blocking portion 114 is provided on the upper portion of the inner hollow portion of the secondary locking block 110;

[0062] Preferably, a trapezoidal long block limiting protrusion 115 is provided at one end edge of the outer bottom of the secondary locking block 110 .

[0063] Example 3

[0064] This embodiment describes a locking structure state of a connector and a connector assembly based on the above embodiments.

[0065] like Figure 8 As shown, Figure 8 Overall cross-sectional view of the component after pre-installation of the secondary locking block.

[0066] Pre-installed position of the secondary locking block 110: the limiting protrusion 115 cooperates with the limiting step 105 to limit the secondary locking block 110 from moving backward; the blocking portion 114 cooperates with the blocking protrusion 104 to limit the secondary locking block 110 from moving forward.

[0067] like Fig. 9 , 10 , as shown in 11, Fig. 9 The locking diagram of the connector and the mating connector. Fig.10 The secondary lock block moves from the pre-installed position to the locked position. Fig.11 This is the final locking position diagram.

[0068] When the connector 10 and the mating connector 20 are in place, the locking platform 103 enters the locking hole 202 to achieve position locking of the connector 10 and the mating connector 20.

[0069] During the mating process, the mating connector housing 200 pushes the elastic arm 102, so that the blocking portion 114 on the elastic arm 102 is separated from the secondary locking block 110, allowing the secondary locking block 110 to move from the pre-installed position to the locked position. The limiting protrusion 115 enters the limiting groove 106 and reaches the final locked position. At this time, the locking and holding boss 112 abuts against the lower side of the elastic arm 102, and the elastic arm 102 cannot be deformed downward, thereby realizing the locking reinforcement function.

[0070] The above description is only the preferred embodiment of the utility model, which does not limit the protection scope of the utility model. For those skilled in the art, the utility model can be modified and varied in various ways. Any changes, modifications, substitutions, integrations and parameter changes to these embodiments within the spirit and principle of the utility model through conventional substitutions or capable of achieving the same functions without departing from the principles and spirit of the utility model shall fall within the protection scope of the utility model.

Claims

1. A connector and a connector assembly, characterized in that: It comprises a connector (10) and a matching connector (20); The connector (10) body is cylindrical, with a connector housing (100) disposed thereon, and a secondary locking block (110) is engaged with the connector housing (100) on the connector (10); The mating connector (20) has a main body which is a cylinder with a rectangular groove, and a mating connector housing (200) is arranged on the cylinder; The outer diameter of one end of the connector (10) is smaller than the inner diameter of one end of the matching connector (20), thereby facilitating mutual matching.

2. A connector and a connector assembly according to claim 1, characterized in that: A slide rail groove (101) is provided at one end of the connector housing (100), an elastic arm (102) extends from the other side, and a locking platform (103) is provided in the middle of the elastic arm (102); A blocking protrusion (104) is provided at the end of the elastic arm (102); A limiting step (105) is provided on the suspended lower side of the elastic arm (102), and a limiting groove (106) is provided on the limiting step (105).

3. A connector and a connector assembly according to claim 1, characterized in that: The secondary locking block (110) is hollowed out in the middle, a square unlocking hole (111) is provided in the middle of the outer layer, and a trapezoidal locking and holding boss (112) is provided at the bottom of the hollowed-out portion of the inner layer; The outer side of the secondary locking block (110) is provided with a slide rail (113); A rectangular blocking portion (114) is provided on the upper portion of the inner hollow portion of the secondary locking block (110); A trapezoidal long block limiting protrusion (115) is provided at one end edge of the outer bottom of the secondary locking block (110).

4. A connector and a connector assembly according to claim 2 or 3, characterized in that: The secondary locking block (110) is pre-installed in the position where the limiting protrusion (115) cooperates with the limiting step (105) to limit the secondary locking block (110) from moving backwards; and the blocking portion (114) cooperates with the blocking protrusion (104) to limit the secondary locking block (110) from moving forwards.

5. A connector and a connector assembly according to claim 4, characterized in that: When the connector (10) and the mating connector (20) are mated in place, the locking hanging platform (103) enters the locking hole (202), thereby achieving position locking of the connector (10) and the mating connector (20).

6. A connector and a connector assembly according to claim 5, characterized in that: During the mating process, the mating connector housing (200) pushes the elastic arm (102) so that the blocking portion (114) on the elastic arm (102) is separated from the secondary locking block (110), thereby allowing the secondary locking block (110) to move from the pre-installed position to the locked position.

7. A connector and a connector assembly according to claim 6, characterized in that: The limiting protrusion (115) enters the limiting groove (106) and reaches the final locking position. At this time, the locking retaining boss (112) abuts against the lower side of the elastic arm (102), and the elastic arm (102) cannot deform downward, thereby achieving the locking reinforcement function.

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