A high voltage connector assembly with secondary lock

Abstract

The present invention discloses a high-voltage connector assembly with a secondary lock, comprising a male end, a locking rocker, a secondary lock slider, and a female end having a male end connecting portion and a rear cover connecting portion. After the male end and the female end of the present invention are connected, the male end and the female end can be separated by pressing the locking rocker without the intervention of the secondary lock slider. After the secondary lock slider takes effect, the male end and the female end cannot be separated by pressing the locking rocker, but the secondary lock slider needs to be released by a tool, and then the locking rocker is pressed to separate the male end and the female end, thereby avoiding the occurrence of misoperation by personnel.

Description

Technical Field

[0001] The invention belongs to the field of automobile high-voltage connectors, and in particular relates to a high-voltage connector assembly with a secondary lock. Background Art

[0002] High-voltage connectors are key components for connecting different circuits in the vehicle circuit, and they have high requirements for connection stability and reliability. At present, most high-voltage connectors with secondary locks on the market are manually operated to achieve the connection and disconnection of the connector, which makes it difficult to avoid operator misoperation. Therefore, it is necessary to study and improve high-voltage connectors with secondary locks. Summary of the invention

[0003] In view of the deficiencies of the prior art, an object of the present invention is to provide a high voltage connector assembly with a secondary lock.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The present invention provides a high-voltage connector assembly with a secondary lock, comprising a male end, a locking rocker, a secondary lock slider, and a female end having a male end connecting portion and a rear cover connecting portion, wherein

[0006] The male end connection part has a cavity with two ends open, the front part of the rear cover connection part is located in the cavity, and the rear part is located outside the cavity; the outer side wall of the rear cover connection part is fixedly connected to one end of the male end connection part;

[0007] An assembly cavity is formed between the inner wall of the male end connecting portion and the outer wall of the front portion of the rear cover connecting portion, and the assembly portion of the male end is received in the assembly cavity;

[0008] The locking rocker is rotatably connected to the top of the male end connection portion, and comprises an extension arm having a middle opening portion and a platform portion extending from the extension arm, the extension arm is received in the assembly cavity and is engaged with the assembly portion of the male end, the platform portion is located outside the assembly cavity, and the extension arm can be separated from the assembly portion of the male end by pressing the platform portion;

[0009] The secondary lock slider comprises a sliding platform, a first elastic hook arranged on the sliding platform and an elastic clamping portion in a "J"-shaped structure, wherein the hook of the first elastic hook is received in the assembly cavity and clamped with the top of the front part of the rear cover connecting portion; the elastic clamping portion is clamped with the platform portion, and the elastic clamping portion can be separated from the platform portion by pressing the elastic clamping portion;

[0010] During assembly, the sliding platform can slide along the guide rail on the top of the rear portion of the rear cover connecting portion, and the first elastic hook and the elastic clamping portion are located below the platform portion.

[0011] According to one embodiment of the present invention, the elastic clamping portion includes an elastic connecting arm, a clamping portion boss and a pressure block, one end of the elastic connecting arm is connected to the sliding platform at an angle, and the other end is connected to one end of the clamping portion boss; the other end of the clamping portion boss is connected to one end of the pressure block, and the other end of the pressure block is a free end; the clamping portion boss is higher than the pressure block and the elastic connecting arm, and the clamping portion boss is clamped with the platform portion; pressing the pressure block can separate the clamping portion boss from the platform portion.

[0012] According to one embodiment of the present invention, long strip protrusions are symmetrically arranged on both sides of the top of the rear part of the rear cover connecting part, and extension blocks are symmetrically extended from both sides of the top of the male end connecting part, and a slot is formed between one end of the long strip protrusion and the extension block.

[0013] According to an embodiment of the present invention, a rotating shaft is provided between the extension arm and the platform portion, and the rotating shaft is installed in the slot so that the locking rocker plate rotates around the rotating shaft.

[0014] According to an embodiment of the present invention, the extension arm has a thickness that gradually decreases from the rotation axis, and a blind hole that is engaged with the boss of the engaging portion is formed at the bottom of the platform portion.

[0015] According to one embodiment of the present invention, an operating block is further provided on the sliding platform, and an anti-slip rib is provided on the top of the operating block;

[0016] The long strip convex block is further provided with a second elastic hook which is clamped with the top of the operating block.

[0017] According to one embodiment of the present invention, a baffle extending upward is provided at the top of the front portion of the rear cover connecting portion, and the baffle is engaged with a hook groove on the hook of the first elastic hook.

[0018] According to one embodiment of the present invention, the assembly portion of the male end is provided with a first assembly bevel, and the side wall of the hook is provided with a second assembly bevel. When the male end is assembled, the first assembly bevel contacts the second assembly bevel and slides downward relative to the second assembly bevel, thereby causing the hook to move upward and the hook groove to separate from the baffle.

[0019] According to an embodiment of the present invention, a protrusion is arranged on the top of the assembly portion of the male end, and an extension arm groove which is engaged with the protrusion is arranged on the bottom of the extension arm.

[0020] According to one embodiment of the present invention, it further includes a back cover, a side surface of which is provided with a hook hole, and a side surface of the rear portion of the back cover connecting portion is provided with a hook boss that cooperates with the hook hole; and a protective plate is provided on the top of the back cover.

[0021] Compared with the prior art, the beneficial technical effects of the present invention are as follows: the secondary lock slider structure of the present invention requires the aid of a tool to be released, thereby avoiding the situation where the male end and the female end are disconnected due to human error, and at the same time increasing the time for disconnection, so that the control system has more reaction time. The male end and the female end of the present invention have mutually coordinated error-proofing structures, and the error-proofing structures can be changed according to functional requirements to achieve the distinction and error-proofing of different functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the female end of the high-voltage connector assembly with a secondary lock of the present invention;

[0024] Figure 2 It is a cross-sectional view of the female end of the high-voltage connector assembly with a secondary lock of the present invention;

[0025] Figure 3 A side view of the female end of the high voltage connector assembly with a secondary lock of the present invention;

[0026] Figure 4 It is another side view of the female end of the high voltage connector assembly with secondary lock of the present invention;

[0027] Figure 5 It is a schematic diagram of the three-dimensional structure of the locking rocker of the high-voltage connector assembly with a secondary lock of the present invention;

[0028] Figure 6 A cross-sectional view of a locking rocker plate of a high voltage connector assembly with a secondary lock according to the present invention;

[0029] Figure 7 It is a three-dimensional structural schematic diagram of a secondary lock slider of a high-voltage connector assembly with a secondary lock of the present invention;

[0030] Figure 8 It is a schematic diagram of the three-dimensional structure of the male end of the high-voltage connector assembly with a secondary lock of the present invention;

[0031] Fig. 9It is a schematic diagram of the three-dimensional structure of the rear cover of the high-voltage connector assembly with a secondary lock of the present invention;

[0032] Fig.10 , 11 , 12, 14, 16 and 17 are assembly process diagrams of the components of the high voltage connector assembly with secondary lock of the present invention;

[0033] Fig.13 for Fig.12 A magnified view of the local details of the M part;

[0034] Fig.15 It is an assembly diagram of the female end assembly of the high voltage connector assembly with secondary lock of the present invention;

[0035] Fig.18 A schematic cross-sectional view of the process of disassembling the components of the high-voltage connector assembly with a secondary lock of the present invention;

[0036] Fig.19 It is a schematic diagram of the exploded components of the high-voltage connector assembly with secondary lock of the present invention. DETAILED DESCRIPTION

[0037] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0038] The present invention provides a high-voltage connector assembly with a secondary lock, comprising a male end 2, a locking rocker plate 3, a secondary lock slider 4 and a female end 1 having a male end connecting portion 11 and a rear cover connecting portion 12.

[0039] like Figure 1-4 As shown, the male end connection part 11 has a cavity with two ends open, the front part of the rear cover connection part 12 is located in the cavity, and the rear part is located outside the cavity. The outer wall of the rear cover connection part 12 is fixedly connected to one end of the male end connection part 11. An assembly cavity 13 is formed between the inner wall of the male end connection part 11 and the outer wall of the front part of the rear cover connection part 12, and the assembly part 21 of the male end 2 is received in the assembly cavity 13. Figure 8 As shown, the assembly portion 21 of the male end 2 is provided with an anti-error rib 23, which is used in conjunction with the anti-error groove (not shown) at the top of the male end connecting portion 11. The anti-error structure can be changed according to functional requirements to achieve the distinction and anti-error of different functions, so the anti-error structure is not limited to Figure 8 The structure shown.

[0040] like Figure 1As shown, long strip protrusions 17 are symmetrically arranged on both sides of the top of the rear portion of the rear cover connecting portion 12, and extension blocks 18 are symmetrically extended from both sides of the top of the male end connecting portion 11, and a card slot 14 is formed between one end of the long strip protrusion 17 and the extension block 18, and the long strip protrusion 17 is further provided with an operation block 46 ( Figure 7 ) to prevent the slider 4 from being locked for the second time. Figure 7 ) slides out from the end of the guide rail 15, which is set on the top of the rear part of the rear cover connecting part 12.

[0041] like Figure 5 and 6 As shown, the locking rocker 3 includes an extension arm 31, a platform portion 32 extending from the extension arm 31, and a rotation shaft 33 arranged between the extension arm 31 and the platform portion 32. The rotation shaft 33 is installed in the card slot 14 of the male end connecting portion 11, so that the locking rocker 3 can rotate around the rotation shaft 33. The bottom of the extension arm 31 of the locking rocker 3 is provided with a protrusion 22 ( Figure 8 ) is engaged with the extension arm groove 35 to prevent the assembly portion 21 of the male end 2 from being separated from the male end connection portion 11 and the rear cover connection portion 12 under the action of external force. The extension arm 31 of the locking rocker 3 also has a middle opening portion 37. When the male end 2 is assembled, the hook 48 of the first elastic hook 42 is lifted up by the assembly portion 21 of the male end 2, and the hook 48 is received in the middle opening portion 37.

[0042] like Figure 5 and 6 As shown, the bottom of the platform portion 32 of the locking rocker 3 is provided with a secondary lock slider 4 ( Figure 7 ) is engaged with the blind hole 34 of the engaging portion boss 44 of the male end 2. The extension arm 31 has a thickness that gradually decreases from the rotation axis 33. Such a structure ensures that the extension arm 31 can be received in the assembly cavity 13, and ensures that when the platform portion 32 is pressed downward to rotate the locking rocker 3 around the rotation axis 33, there is sufficient space between the top outer surface of the extension arm 31 and the top inner surface of the male end connecting portion 11, so as to allow the extension arm 31 to be lifted upward from the position engaged with the assembly portion 21 of the male end 2, thereby separating from the assembly portion 21. Among them, the platform portion 32 is located outside the assembly cavity 13.

[0043] In a preferred embodiment, if Figure 7As shown, the secondary lock slider 4 includes a sliding platform 41, a first elastic hook 42 arranged on the sliding platform 41, and an elastic clamping part in a "J"-shaped structure, and the elastic clamping part includes an elastic connecting arm 43, a clamping part boss 44, and a pressing block 45. One end of the elastic connecting arm 43 is connected to the sliding platform 41 at an angle, and the other end is connected to one end of the clamping part boss 44. The other end of the clamping part boss 44 is connected to one end of the pressing block 45. The other end of the pressing block 45 is a free end, and the clamping part boss 44 is higher than the pressing block 45 and the elastic connecting arm 43. When the pressing block 45 is pressed downward, the clamping part boss 44 and the elastic connecting arm 43 move downward accordingly, so that the clamping part boss 44 is disengaged downward from the blind hole 34 of the platform part 32, thereby locking the rocker 3 and separating from the secondary lock slider 4. The first elastic hook 42 includes an elastic arm 40 and a hook 48 extending from the elastic arm 40, the hook 48 is provided with a hook groove 421, and the side wall of the hook 48 is provided with a second assembly bevel 49 ( Figure 7 and 16 ), and at the same time, a first assembly bevel (not shown) matching with the second assembly bevel 49 is provided on the assembly portion 21 of the male end 2. When the male end 2 is not assembled, the hook groove 421 is engaged with the baffle 16. When the male end 2 is assembled, the first assembly bevel contacts the second assembly bevel 49 and slides downward relative to the second assembly bevel 49, pushing the hook 48 upward, and the elastic arm 40 moves upward accordingly, so that the hook groove 421 is separated from the baffle 16.

[0044] In another preferred embodiment, Figure 7 As shown, the rear of the sliding platform 41 is further provided with an operating block 46, and the top of the operating block 46 is provided with an anti-slip rib 47. During assembly, the operating block 46 is pushed to slide the sliding platform 41 along the guide rail 15, so that the hook 48 at the front end of the first elastic hook 42 slides into the assembly cavity 13 and engages with the baffle 16 on the top of the front part of the rear cover connecting part 12. The first elastic hook 42 and the elastic engaging part are located below the platform part 32 as a whole. At the same time, the engaging part boss 44 lifts the platform part 32 from the bottom of the platform part 32 at the end of the platform part 32. As shown in FIG. Figure 6 As shown, the platform portion 32 has an inclined wall 36 at the bottom end thereof to facilitate the boss 44 of the clamping portion to lift it up.

[0045] In another preferred embodiment, Fig. 9 As shown, it further includes a rear cover 5, a side surface (i.e., an outer side wall) of the rear cover 5 is provided with a buckle hole 51, and a side surface (i.e., an outer side wall) of the rear portion of the rear cover connecting portion 12 is provided with a buckle boss 10 ( Figure 1A guard plate 52 is provided on the top of the rear cover 5, and the guard plate 52 surrounds the second elastic hook 19 on the long strip protrusion 17 of the rear cover connecting portion 12 to prevent the second elastic hook 19 from being deformed or damaged under the action of external force, thereby losing the function of preventing the secondary lock slider 4 from sliding out from the end of the guide rail 15.

[0046] The assembly process of the components of the high-voltage connector assembly with secondary lock of the present invention is as follows:

[0047] First, as Fig.10 As shown by the arrow in , the rotating shaft 33 of the locking rocker 3 is assembled with the slot 14 of the male end connecting portion 11 .

[0048] Second, if Fig.11 As shown by the arrow, and reference Fig.12 and 13 , insert the secondary lock slider 4 from the end of the guide rail 15 at the top of the rear cover connecting portion 12 until the hook groove 421 of the hook 48 of the first elastic hook 42 of the secondary lock slider 4 is engaged with the baffle 16 at the top of the rear cover connecting portion 12. At this time, the secondary lock slider 4 is in a waiting state, and the engaging portion boss 44 of the secondary lock slider 4 lifts up the inclined wall 36 of the locking rocker 3.

[0049] Third, if Fig.14 As shown by the arrow, and reference Fig.15 , install the rear cover 5 from the rear of the rear cover connecting portion 12, and now the female end assembly is completed.

[0050] Fourth, if Fig.16 As shown, the assembly portion 21 of the male end 2 is inserted into the assembly cavity 13 of the female end 1, and the extension arm groove 35 of the extension arm 31 of the locking rocker 3 is engaged with the protrusion 22 of the male end 2 to prevent the male end 2 from being separated under the action of external force. At the same time, when the first assembly bevel of the assembly portion 21 of the male end 2 contacts the second assembly bevel 49 of the hook 48 of the first elastic hook 42 of the secondary lock slider 4 in the assembly cavity 13, the second assembly bevel 49 is pushed up ( Fig.16 The hook 48 is received in the middle opening 37 of the extension arm 31 and is located below the platform portion 32. At this time, the secondary lock slider 4 can slide forward along the guide rail 15.

[0051] Fifth, if Fig.17 In the direction of the arrow in the figure, the operating block 46 is pushed forward to slide the secondary lock slider 4 forward until the engaging portion boss 44 of the secondary lock slider 4 slides into the blind hole 34 of the locking rocker 3. At this time, the hook 48 is received in the middle opening 37 of the extension arm 31. At this time, the locking rocker 3 cannot rotate around the rotating shaft 33, and the male end 2 is stably connected to the female end 1.

[0052] The disassembly process of each component of the high-voltage connector assembly with secondary lock of the present invention is as follows:

[0053] like Fig.18 and 19 As shown, a flat bar with a width not exceeding 3.6 mm, a thickness not exceeding 1 mm, and a length greater than 14 mm is used to press the pressing block 45 of the secondary lock slider 4 downward by more than 1.3 mm (see arrow A) from the rear of the secondary lock slider 4, after which the clamping portion boss 44 of the secondary lock slider 4 can be withdrawn from the blind hole 34 of the locking rocker 3 (see arrow B), and then the secondary lock slider 4 retreats along the guide rail 15. Finally, the platform portion 32 of the locking rocker 3 is pressed downward (see arrow C), and the extension arm 31 of the locking rocker 3 is lifted upward and separated from the protrusion 22 of the male end 2. At this point, the male end 2 can be separated from the female end 1 (see arrow D).

[0054] After the male end and the female end of the present invention are connected, the male end and the female end can be separated by pressing the locking rocker without the intervention of the secondary lock slider. After the secondary lock slider takes effect, the male end and the female end cannot be separated by pressing the locking rocker, but the secondary lock slider needs to be released by a tool, and then the locking rocker is pressed to separate the male end and the female end, thereby avoiding the situation of human error operation.

[0055] The above are exemplary embodiments disclosed in the present invention. The order disclosed in the above embodiments of the present invention is only for description and does not represent the advantages and disadvantages of the embodiments. However, it should be noted that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope (including claims) disclosed in the embodiments of the present invention is limited to these examples. Various changes and modifications may be made without departing from the scope defined in the claims. The functions, steps and / or actions of the method claims according to the disclosed embodiments described herein do not need to be performed in any particular order. In addition, although the elements disclosed in the embodiments of the present invention may be described or required in individual form, they may also be understood as multiple unless explicitly limited to the singular.

[0056] A person skilled in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the disclosure of the embodiments of the present invention (including the claims) is limited to these examples; under the concept of the embodiments of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the embodiments of the present invention as described above, which are not provided in detail for the sake of simplicity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present invention should be included in the protection scope of the embodiments of the present invention.

Claims

1. A high voltage connector assembly with a secondary lock, characterized in that: It includes a male end, a locking rocker, a secondary lock slider and a female end having a male end connecting portion and a rear cover connecting portion, wherein The male end connection part has a cavity with two ends open, the front part of the rear cover connection part is located in the cavity, and the rear part is located outside the cavity; the outer side wall of the rear cover connection part is fixedly connected to one end of the male end connection part; An assembly cavity is formed between the inner wall of the male end connecting portion and the outer wall of the front portion of the rear cover connecting portion, and the assembly portion of the male end is received in the assembly cavity; The locking rocker is rotatably connected to the top of the male end connection portion, and comprises an extension arm having a middle opening portion and a platform portion extending from the extension arm, the extension arm is received in the assembly cavity and is engaged with the assembly portion of the male end, the platform portion is located outside the assembly cavity, and the extension arm can be separated from the assembly portion of the male end by pressing the platform portion; The secondary lock slider comprises a sliding platform, a first elastic hook arranged on the sliding platform and an elastic clamping portion in a "J"-shaped structure, wherein the hook of the first elastic hook is received in the assembly cavity and is clamped with the top of the front part of the rear cover connecting portion; the elastic clamping portion is clamped with the platform portion, and the elastic clamping portion can be separated from the platform portion by pressing the elastic clamping portion; During assembly, the sliding platform can slide along the guide rail on the top of the rear portion of the rear cover connecting portion, and the first elastic hook and the elastic clamping portion are located below the platform portion.

2. The high voltage connector assembly with secondary lock according to claim 1, characterized in that: The elastic clamping part includes an elastic connecting arm, a clamping part boss and a pressure block, one end of the elastic connecting arm is connected to the sliding platform at an angle, and the other end is connected to one end of the clamping part boss; the other end of the clamping part boss is connected to one end of the pressure block, and the other end of the pressure block is a free end; the clamping part boss is higher than the pressure block and the elastic connecting arm, and the clamping part boss is clamped with the platform part; pressing the pressure block can separate the clamping part boss from the platform part.

3. The high voltage connector assembly with secondary lock according to claim 1, characterized in that: Long strip protrusions are symmetrically arranged on both sides of the top of the rear part of the rear cover connecting part, and extension blocks are symmetrically extended from both sides of the top of the male end connecting part, and a slot is formed between one end of the long strip protrusion and the extension block.

4. The high voltage connector assembly with secondary lock according to claim 3, characterized in that: A rotating shaft is arranged between the extension arm and the platform portion, and the rotating shaft is installed in the card slot so that the locking rocker plate rotates around the rotating shaft.

5. The high voltage connector assembly with secondary lock according to claim 4, characterized in that: The extension arm has a thickness that gradually decreases from the rotating shaft, and a blind hole that is clamped with the boss of the clamping part is formed at the bottom of the platform part.

6. The high voltage connector assembly with secondary lock according to claim 3, characterized in that: The sliding platform is further provided with an operating block, and the top of the operating block is provided with an anti-slip rib; The long strip convex block is further provided with a second elastic hook which is clamped with the top of the operating block.

7. The high voltage connector assembly with secondary lock according to claim 1, characterized in that: A baffle extending upward is provided at the top of the front portion of the rear cover connecting portion, and the baffle is engaged with a hook groove on the hook of the first elastic hook.

8. The high voltage connector assembly with secondary lock according to claim 7, characterized in that: The assembly portion of the male end is provided with a first assembly bevel, and the side wall of the hook is provided with a second assembly bevel. When the male end is assembled, the first assembly bevel contacts the second assembly bevel and slides downward relative to the second assembly bevel, so that the hook moves upward and the hook groove is separated from the baffle.

9. The high voltage connector assembly with secondary lock according to claim 1, characterized in that: A protrusion is arranged on the top of the assembly portion of the male end, and an extension arm groove which is clamped with the protrusion is arranged on the bottom of the extension arm.

10. The high voltage connector assembly with secondary lock according to claim 1, characterized in that: It further includes a back cover, a side surface of which is provided with a buckle hole, and a side surface of the rear portion of the back cover connecting portion is provided with a buckle boss that cooperates with the buckle hole; and a guard plate is provided on the top of the back cover.

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