Improved high voltage connector with CPA component

Abstract

The utility model relates to an improved high-voltage connector with a CPA component, which comprises a socket, a plug, an anti-drop structure and a limiting structure, the plug and the socket are assembled and matched with each other, and the CPA component is configured to be arranged on the upper side of a plug shell in a manner of sliding back and forth along the plugging direction of the plug and the socket. The anti-drop structure is configured to realize that the CPA component is matched with the plug lock catch in the sliding process along the plugging direction, and prevent the CPA component from dropping from the plug shell due to the reverse sliding of the CPA component along the plugging direction; and the limiting structure is configured to realize that the CPA component is respectively matched with the plug and the socket in a locking manner in a sliding process along the plugging direction, so that the CPA component is prevented from sliding along the same direction of the plugging direction and being separated from the plug shell. Therefore, it is ensured that the positioning guarantee effect cannot be reduced due to repeated use of the CPA component, and the locking and positioning guarantee effect of the CPA component on the assembled state of the plug and the socket is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of connectors, and more particularly to an improved high-voltage connector with a CPA component. Background Technology

[0002] High-voltage connectors, also known as high-voltage plugs, generally refer to connectors with an operating voltage of 60V or higher and primarily responsible for transmitting high current. Currently, high-voltage connectors are used in new energy vehicles (such as electric vehicles). In the high-voltage, high-current circuits of new energy vehicles, high-voltage connectors and wires work together to transmit the energy from the battery pack to high-voltage components in the vehicle system, such as the battery pack, motor controller, DC-DC converter, and charger, through different electrical circuits.

[0003] Existing high-voltage connectors mainly consist of a socket and a plug. The plug is equipped with a CPA (connector position assurance) component, the socket has socket terminals, and the plug has plug terminals that correspond to and electrically mate with the socket terminals. A pair of mating socket and plug terminals fulfills one function of the high-voltage connector. The CPA component ensures reliable mating and locking between the plug and socket, enhancing connection stability.

[0004] However, existing high-voltage connectors have shortcomings: the CPA component is prone to shaking due to unbalanced force or deformation due to repeated use, which reduces the locking and positioning effect of the CPA component on the assembled state between the plug and the socket. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an improved high-voltage connector with a CPA component that enables the CPA component to better lock and position the plug and socket in the assembled state, in contrast to the above-mentioned prior art.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: an improved high-voltage connector with a CPA component, comprising:

[0007] A socket, having a socket housing;

[0008] A plug is assembled and fitted with a socket; the plug has a plug housing.

[0009] The CPA component is configured to slide back and forth along the insertion direction of the plug and socket on the upper side of the plug housing;

[0010] Its characteristic is that it further includes:

[0011] The anti-disengagement structure is configured to allow the CPA component to engage with the plug latch during sliding in the insertion direction, preventing the CPA component from sliding in the reverse direction and disengaging from the plug housing.

[0012] The limiting structure is configured to enable the CPA component to engage with the plug and socket respectively during sliding in the insertion direction, preventing the CPA component from sliding in the same direction in the insertion direction and dislodging from the plug housing.

[0013] Improvedly, in the improved high-voltage connector with CPA component, the CPA component has a CPA body and a first limiting buckle, the first limiting buckle being located at the rear end of the CPA body; the plug housing has a first limiting platform located on the upper side of the plug housing; wherein, the first limiting platform of the plug housing and the first limiting buckle of the CPA component engage with each other to form the anti-disengagement structure.

[0014] Furthermore, in the improved high-voltage connector with a CPA component, the CPA component has a second limiting latch and an elastic arm located in front of the second limiting latch, the second limiting latch being located in front of the first limiting latch; the plug housing has a positioning latch located in front of the first limiting latch; the socket housing has a second limiting latch located on its upper side, and the elastic arm of the CPA component is configured to pass over the second limiting latch and engage with it after moving along the insertion direction; wherein the positioning latch of the plug housing and the second limiting latch of the CPA component engage with each other, and the second limiting latch of the socket housing and the elastic arm of the CPA component engage with each other to jointly form the limiting structure.

[0015] Further improvements include the following: In the improved high-voltage connector with CPA components, elastic buckles are provided on both side walls of the CPA body and are symmetrical to each other; and first positioning holes are provided on both side walls of the plug housing to engage with the corresponding elastic buckles.

[0016] Furthermore, in the improved high-voltage connector with CPA component, the plug housing has a second positioning hole on each of its two side walls for engaging with the corresponding elastic snap fastener; wherein the second positioning hole is located in front of the first positioning hole.

[0017] Improvedly, in the improved high-voltage connector with CPA component, the rear end of the CPA body is provided with a CPA pad that can move back and forth with the CPA component, the socket housing is provided with a third limiting plate, and the plug housing is provided with an elastic hook that engages with the third limiting plate on the socket housing; wherein, after the CPA pad moves with the CPA component along the insertion direction, it presses against the elastic hook to enhance the locking effect between the elastic hook and the third limiting plate.

[0018] In a further improvement, the CPA component in the modified high-voltage connector has two elastic arms, one elastic arm located on the left side of the CPA body and the other elastic arm located on the right side of the CPA body.

[0019] In a further improvement, in the modified high-voltage connector with a CPA component, the CPA body extends towards its own front end to form the elastic arm, and the elastic arm is connected to the CPA body through an inclined section; wherein, the first limiting buckle is located on the bottom surface of the CPA body, and the second limiting buckle is located on the bottom surface of the elastic arm.

[0020] Improvedly, in the improved high-voltage connector with CPA component, the socket housing has two second limiting plates arranged symmetrically on the left and right, and the third limiting plate is located between the two second limiting plates.

[0021] In a further improvement, in the improved high-voltage connector with a CPA component, the upper side of the plug housing has a cavity with openings at both the front and rear ends, and the elastic arm of the CPA component is configured to slide back and forth within the cavity in the insertion direction of the plug and socket after being driven, with the elastic hook located inside the cavity.

[0022] Compared with the prior art, the advantages of this utility model are as follows: In the high-voltage connector of this utility model, by adding an anti-disengagement structure and a restraining structure to the existing socket, plug, and CPA component, the anti-disengagement structure ensures that the CPA component will not be disengaged from the plug housing due to sliding in the opposite direction of the insertion direction during the locking process of the socket and plug. The restraining structure prevents the CPA component from sliding in the same direction of the insertion direction and disengaging from the plug housing. Thus, it ensures that the positioning guarantee effect of the CPA component will not decrease due to repeated use, and enhances the locking and positioning guarantee effect of the CPA component in the assembled state between the plug and socket. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the improved high-voltage connector with CPA component in an embodiment of this utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the socket structure of the high-voltage connector shown.

[0025] Figure 3 for Figure 2 A schematic diagram of the socket shown from another perspective;

[0026] Figure 4 for Figure 1 A schematic diagram of the plug structure of the high-voltage connector shown.

[0027] Figure 5 for Figure 4 A schematic diagram of the plug from another perspective;

[0028] Figure 6 This is a schematic diagram showing the CPA component after it has been removed from the plug;

[0029] Figure 7 for Figure 1 A schematic diagram of the CPA component structure of the high-voltage connector shown.

[0030] Figure 8 for Figure 6 A schematic diagram of the CPA component shown from one viewpoint;

[0031] Figure 9 This is a schematic diagram showing the engagement of the first limiting buckle of the CPA component with the first limiting buckle of the plug housing.

[0032] Figure 10 for Figure 9 The diagram shows the CPA component continuing to slide so that its second limit latch engages with the positioning latch of the plug housing.

[0033] Figure 11 for Figure 10 A cross-sectional view of the CPA component shown, in which the elastic snap is engaged with the first positioning hole of the plug housing (i.e., the high-voltage connector is in a pre-locked state).

[0034] Figure 12 for Figure 11 The cross-sectional view of the CPA component shown when the elastic arm and the second limiting plate of the socket housing are in an interference fit state;

[0035] Figure 13 for Figure 12 A cross-sectional view of the state corresponding to the interlocking engagement of the elastic arm of the CPA component and the second limiting latch of the socket housing;

[0036] Figure 14 middle Figure 13 A cross-sectional view of the state corresponding to the CPA pad of the CPA component pressing against the elastic hook on the plug housing;

[0037] Figure 15 for Figure 14 A cross-sectional view of the second elastic snap of the CPA component engaging with the second positioning hole snap of the plug housing;

[0038] Figure 16 for Figure 15 A cross-sectional view of the state corresponding to when the CPA pad of the CPA component is removed and does not press against the elastic hook on the plug housing. Detailed Implementation

[0039] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0040] This embodiment provides an improved high-voltage connector with a CPA component. Specifically, see [link to documentation]. Figures 1-14 As shown, the improved high-voltage connector with a CPA component in this embodiment includes a socket 1, a plug 2, and a CPA component 3. The socket 1 has a socket housing 10, and a plug terminal 10a is disposed within the plug housing 10. The plug 2 has a plug housing 20, and a socket terminal 20a is disposed within the plug housing 20. The socket terminal 20a and the corresponding plug terminal 10a are electrically connected. The plug 2 and the socket 1 are assembled and fitted together. The CPA component 3 is configured to be slidably disposed on the upper side of the plug housing 20 along the insertion direction of the plug 2 and the socket 1. As an improvement, the improved high-voltage connector in this embodiment also includes an anti-disengagement structure and a limiting structure. The anti-disengagement structure is configured to enable the CPA component to engage with the plug during sliding along the insertion direction, preventing the CPA component from sliding in the opposite direction of the insertion direction and disengaging from the plug housing. The limiting structure is configured to enable the CPA component to engage with both the plug and the socket during sliding along the insertion direction, preventing the CPA component from sliding in the same direction of the insertion direction and disengaging from the plug housing.

[0041] In this embodiment of the high-voltage connector, by adding an anti-disengagement structure and a restraining structure to the existing socket, plug, and CPA component, the anti-disengagement structure ensures that the CPA component will not slip off the plug housing during the locking process of the socket and plug due to sliding in the opposite direction of the insertion direction. The restraining structure prevents the CPA component from sliding off the plug housing in the same direction of the insertion direction. This ensures that the CPA component will not slip on the plug, thus preventing poor positioning and enhancing the positioning guarantee effect of the CPA component after locking between the plug and socket.

[0042] Specifically, see Figure 7 and Figure 8 As shown, the CPA component 3 has a CPA body 30 and a first limiting buckle 31, the first limiting buckle 31 being located at the rear end of the CPA body 30; the plug housing 20 has a first limiting platform 21 located on the upper side of the plug housing; wherein, the first limiting platform 21 of the plug housing 20 and the first limiting buckle 31 of the CPA component 3 engage with each other to form the anti-dislodgement structure.

[0043] As an implementation of the limiting structure, the CPA component 3 in this embodiment has a second limiting buckle 32 and an elastic arm 33 located in front of the second limiting buckle 32, with the second limiting buckle 32 located in front of the first limiting buckle 31; the plug housing 20 has a positioning platform 22 located in front of the first limiting platform 21; the socket housing 10 has a second limiting platform 11 located on its upper side, and the elastic arm 33 of the CPA component 3 is configured to pass over the second limiting platform 11 and engage with it after moving along the insertion direction; wherein, the positioning platform 22 of the plug housing 20 and the second limiting buckle 32 of the CPA component 3 engage with each other, and the second limiting platform 11 of the socket housing 10 and the elastic arm 33 of the CPA component 3 engage with each other to jointly form the limiting structure. As a structural form of the elastic arm, the front end of the elastic arm 33 has a snap-fit ​​end 33a, which is configured to engage with the second limiting latch 11 of the socket housing 10.

[0044] To enhance the stability of the CPA component as it slides along the insertion direction and to provide a tactile feedback during the locking process between the CPA component and the plug housing, in this embodiment, elastic buckles 34 are symmetrically provided on both side walls of the CPA body 30, and first positioning holes 201 are provided on both side walls of the plug housing 20 to engage with the corresponding elastic buckles. The elastic buckles snap into their corresponding first positioning holes in an elastic manner. Thus, during the sliding process, when the elastic buckle 34 of the CPA component snaps into the corresponding first positioning hole 201 on the side wall of the plug housing 20, a tactile feedback is generated due to the locking action between the elastic buckle and the first positioning hole. This tactile feedback allows it to be determined that the CPA component has completed one locking action with the plug housing. After the elastic buckle of the CPA component has engaged with the first positioning hole of the plug housing, the plug and socket of the high-voltage connector are in a pre-locked state. See details below. Figure 11 As shown.

[0045] To enhance the locking effect between the CPA component and the plug housing, in this embodiment, the plug housing 20 is provided with a second positioning hole 202 on each of its two side walls for engaging with the corresponding elastic buckle 34; wherein the second positioning hole 202 is located in front of the first positioning hole 201.

[0046] To maintain the locking effect between the CPA component and the plug housing as needed, see [link / reference]. Figure 7 and 8As shown, the rear end of the CPA body 30 is provided with a CPA pad 35 that can move back and forth with the CPA component. The socket housing 10 is provided with a third limiting latch 12, and the plug housing 20 is provided with an elastic hook 23 that engages with the third limiting latch 12 on the socket housing 10. The CPA pad 35 presses against the elastic hook 23 after moving with the CPA component along the insertion direction, enhancing the locking effect between the elastic hook and the third limiting latch and preventing the CPA component from detaching from the plug due to accidental pressing of the elastic hook. Depending on the needs, the socket housing 10 has two symmetrically arranged second limiting latches 11, with the third limiting latch 12 located between the two second limiting latches 11.

[0047] To further enhance the positional guarantee effect of the CPA component in locking the plug and socket, in this embodiment, the CPA component 3 has two elastic arms 33, one elastic arm 33 located on the left side of the CPA body 30 and the other elastic arm 33 located on the right side of the CPA body 30.

[0048] In this embodiment, the CPA body 30 extends towards its front end to form the elastic arm 33, which is connected to the CPA body via an inclined section. The first limiting buckle 31 is located on the bottom surface of the CPA body 30, and the second limiting buckle 32 is located on the bottom surface of the elastic arm 33.

[0049] As one structural form of the plug housing, in the high-voltage connector of this embodiment, see [link to relevant documentation]. Figures 4-6 As shown, the upper side of the plug housing 20 has a cavity 200 with openings at both the front and rear ends. The elastic arm 33 of the CPA component 3 is configured to slide back and forth in the cavity 200 along the insertion direction of the plug and socket after being driven. The elastic hook 23 is located inside the cavity 200.

[0050] The following combination Figures 1 to 16 The working principle of the improved high-voltage connector with CPA component in this embodiment is explained as follows:

[0051] When the CPA component needs to be slid to the pre-locked position, push the CPA component on the plug housing along the insertion direction of the plug and socket. See [link / reference]. Figure 9 As shown, the first limiting latch of the CPA component engages with the first limiting latch on the plug housing to form an anti-disengagement structure, preventing the CPA component from sliding in the reverse direction of the insertion direction and disengaging from the plug housing.

[0052] Continue pushing the CPA component in the original direction until its second limiting latch engages with the positioning latch of the plug housing. Furthermore, the elastic arm of the CPA component engages with the second limiting latch of the socket housing to form a limiting structure. (See attached image.) Figure 10 and Figure 12 As shown, this prevents the CPA component from sliding in the same direction along the insertion direction and detaching from the plug housing; of course, see also... Figure 11 As shown, the elastic buckle on the side wall of the CPA component and the corresponding first positioning hole on the side wall of the plug housing elastically engage with each other. The elastic buckle and the first positioning hole elastically engage with each other, which gives the operator a jerking feeling during operation. This indicates that the CPA component is in the pre-locked position. Therefore, the presence or absence of a jerking feeling can be used to determine whether the installed CPA component is in the locked position.

[0053] When it is necessary to use the CPA component to lock the plug and socket in their assembled and mated state, the CPA component is continued to be pushed along the insertion direction, causing the elastic arm of the CPA component to interfere with the second limiting plate on the socket housing. The elastic arm of the CPA component is lifted by the second limiting plate on the socket housing. See [link to relevant documentation]. Figure 12 As shown, this causes the entire CPA component to be lifted, causing the interference between the second limiting buckle of the CPA and the positioning plate on the plug housing to disappear. Thus, the CPA component can continue to be installed along the insertion direction (that is, the installation direction of the CPA component).

[0054] As the CPA component continues to be pushed along its mounting direction, see Figure 13 As shown, the second limiting latch on the CPA component moves to the other side of the positioning plate after passing over the positioning plate on the plug housing, thereby restricting the CPA component from sliding in the same direction along the insertion direction and dislodging it from the plug housing.

[0055] Then, by engaging the elastic hook on the plug housing with the third limiting plate on the socket housing, the plug housing and socket housing are assembled. At this time, the CPA pad of the CPA component presses against the elastic hook on the plug housing, which enhances the engagement effect between the elastic hook and the third limiting plate and prevents the CPA component from coming off the plug due to accidental pressing of the elastic hook. This achieves a reliable positioning guarantee for the assembly effect between the plug and socket using the CPA component.

[0056] Although the preferred embodiments of the present invention have been described in detail above, it should be clearly understood that various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An improved high-voltage connector with a CPA component, including: A socket (1) having a socket housing (10); A plug (2) having a plug housing (20) is assembled and mated with a socket (1); The CPA component (3) is configured to be slidably disposed on the upper side of the plug housing (20) along the insertion direction of the plug (2) and the socket (1); Its characteristic is that it further includes: The anti-disengagement structure is configured to enable the CPA component (3) to engage with the plug (2) during the sliding process along the insertion direction, preventing the CPA component from sliding in the opposite direction along the insertion direction and disengaging from the plug housing; The limiting structure is configured to enable the CPA component (3) to engage with the plug (2) and socket (1) respectively during the sliding process along the insertion direction, preventing the CPA component from sliding in the same direction along the insertion direction and dislodging from the plug housing.

2. The improved high-voltage connector with a CPA component according to claim 1, characterized in that, The CPA component (3) has a CPA body (30) and a first limiting buckle (31), the first limiting buckle (31) being located at the rear end of the CPA body (30); the plug housing (20) has a first limiting platform (21) located on the upper side of the plug housing; wherein, the first limiting platform (21) of the plug housing (20) and the first limiting buckle (31) of the CPA component (3) are mutually engaged to form the anti-dislodgement structure.

3. The improved high-voltage connector with a CPA component according to claim 2, characterized in that, The CPA component (3) has a second limiting latch (32) and an elastic arm (33) located in front of the second limiting latch (32), the second limiting latch (32) being located in front of the first limiting latch (31); the plug housing (20) has a positioning platform (22), the positioning platform (22) being located in front of the first limiting platform (21); the socket housing (10) has a second limiting platform (11) located on its upper side, the CPA component (3) of The elastic arm (33) is configured to pass over the second limiting latch (11) and engage with the second limiting latch (11) after moving along the insertion direction; wherein the positioning latch (22) of the plug housing (20) and the second limiting latch (32) of the CPA component (3) engage with each other, and the second limiting latch (11) of the socket housing (10) and the elastic arm (33) of the CPA component (3) engage with each other to form the limiting structure.

4. The improved high-voltage connector with a CPA component according to claim 3, characterized in that, The CPA body (30) has elastic buckles (34) on both side walls and they are symmetrical to each other. The plug housing (20) has first positioning holes (201) on both side walls that engage with the corresponding elastic buckles.

5. The improved high-voltage connector with a CPA component according to claim 4, characterized in that, The plug housing (20) has two side walls each provided with a second positioning hole (202) for engaging with the corresponding side elastic buckle (34); wherein the second positioning hole (202) is located in front of the first positioning hole (201).

6. The improved high-voltage connector with a CPA component according to claim 4, characterized in that, The rear end of the CPA body (30) is provided with a CPA pad (35) that can move back and forth with the CPA component. The socket housing (10) is provided with a third limiting plate (12). The plug housing (20) is provided with an elastic hook (23) that engages with the third limiting plate (12) on the socket housing (10). The CPA pad (35) presses against the elastic hook (23) after moving with the CPA component along the insertion direction to enhance the engagement effect between the elastic hook (23) and the third limiting plate (12).

7. The improved high-voltage connector with a CPA component according to any one of claims 3 to 6, characterized in that, The CPA component (3) has two elastic arms (33), one elastic arm located on the left side of the CPA body and the other elastic arm located on the right side of the CPA body.

8. The improved high-voltage connector with a CPA component according to any one of claims 3 to 6, characterized in that, The CPA body (30) extends toward its front end to form the elastic arm (33), which is connected to the CPA body through an inclined section; wherein, the first limiting buckle (31) is located on the bottom surface of the CPA body (30), and the second limiting buckle (32) is located on the bottom surface of the elastic arm (33).

9. The improved high-voltage connector with a CPA component according to claim 6, characterized in that, The socket housing (10) has two second limiting plates (11) arranged symmetrically on the left and right, and the third limiting plate (12) is located between the two second limiting plates.

10. The improved high-voltage connector with a CPA component according to claim 6, characterized in that, The upper side of the plug housing (20) has a cavity (200) with openings at both the front and rear ends. The elastic arm (33) of the CPA component (3) is configured to slide back and forth in the cavity (200) along the insertion direction of the plug and socket after being driven. The elastic hook (23) is located inside the cavity (200).

Images