Connector and connector assembly

Abstract

The present invention discloses a connector and a connector assembly. The connector assembly includes: a first connector, comprising a first housing and first terminal holes provided in the first housing; and a second connector adapted to mate with the first connector, comprising a second housing and second terminal holes provided in the second housing. The first housing is adapted to be partially inserted into the second housing along its axial direction. An elastic latch adapted to be locked to the second housing is formed on the first housing. A latch safety capable of moving circumferentially is mounted on the second housing. The latch safety is adapted to move between a safety position for preventing the elastic latch from unlocking and a pre-locking position for pre-installing the elastic latch on the second housing. A pushing portion adapted to place the latch safety in the pre-locking position is formed on the first housing. Therefore, before plugging in the first and second connectors, the operator does not need to check whether the latch safety has been reset to the pre-locking position, the operation is very simple, and it is safe to use.

Description

Technical Field

[0001] The present invention relates to a connector and a connector assembly. Background Art

[0002] In the prior art, in order to achieve rapid electrical connection between a cable and a cable or between a cable and an electrical device, plug connectors and socket connectors adapted to be rapidly mated together are usually employed. In the prior art, in order to prevent the mated plug connector and socket connector from separating, an elastic latch is usually provided on the housing of the plug connector, and the elastic latch is adapted to latch onto the housing of the socket connector. Generally, the elastic latch is unlockable so that the plug connector and the socket connector are separable and reusable.

[0003] In the prior art, in order to prevent the elastic latch from being accidentally unlocked due to incorrect operation, a latch safety mechanism needs to be provided on the socket connector, and the latch safety mechanism is movable between a safety position and a pre-locking position (or an initial position). After the plug connector is inserted into the socket connector, by moving the latch safety mechanism to the safety position, the elastic latch can be held in the locked position, thereby avoiding accidental unlocking of the elastic latch due to incorrect operation.

[0004] In the prior art, before inserting the plug connector into the socket connector, an operator must ensure that the latch safety mechanism has been reset to the initial position (pre-locking position) that does not interfere with the elastic latch, otherwise the plug connector cannot be inserted, and in serious cases, it may even cause the elastic latch and the latch safety mechanism to collide and be damaged. Therefore, in the prior art, there is a risk of damage to the plug connector and the socket connector due to operation errors. Summary of the Invention

[0005] The object of the present invention is to solve at least one of the above problems and defects existing in the prior art.

[0006] According to one aspect of the present invention, there is provided a connector assembly, comprising: a first connector, including a first housing and a first terminal hole provided in the first housing for accommodating a first conductive terminal; and a second connector adapted to mate with the first connector, including a second housing and a second terminal hole provided in the second housing for accommodating a second conductive terminal, the first housing being adapted to be partially inserted into the second housing along its axial direction, an elastic latch adapted to be locked to the second housing being formed on the first housing, a latch insurance capable of moving circumferentially along the second housing being mounted on the second housing, the latch insurance being adapted to move between an insurance position for preventing the elastic latch from unlocking and a pre-locking position for pre-installing the elastic latch on the second housing, a pushing portion being formed on the first housing, and when the pushing portion contacts the latch insurance, the pushing portion is adapted to place the latch insurance in the pre-locking position so that the first housing is inserted into the second housing.

[0007] According to an exemplary embodiment of the present invention, a guiding inclined surface inclined with respect to the axial direction is formed on the pushing portion, and the pushing portion contacts and pushes the latch insurance through the guiding inclined surface to drive and guide the latch insurance to move circumferentially from the insurance position to the pre-locking position.

[0008] According to another exemplary embodiment of the present invention, a guiding sliding groove extending circumferentially is formed on the outer wall of the second housing, the latch insurance is slidably mounted in the guiding sliding groove, and the guiding sliding groove is used to guide the latch insurance to move circumferentially between the insurance position and the pre-locking position.

[0009] According to another exemplary embodiment of the present invention, the latch insurance includes: a sliding plate slidably mounted in the guiding sliding groove; and one or more limiting portions connected to the sliding plate, an opening is formed on the second housing, the limiting portion extends into the second housing through the opening, and the edges of the front and rear sides of the opening opposite in the axial direction are respectively slidably clamped in the clamping grooves between the limiting portion and the second housing to limit the radial movement of the latch insurance.

[0010] According to another exemplary embodiment of the present invention, the elastic latch includes: an elastic cantilever connected to the first housing and adapted to move between a locking position and an unlocking position; and a latch portion formed on the elastic cantilever and adapted to latch to the second housing, the latch insurance includes a tongue portion connected to the limiting portion, and the tongue portion is adapted to be inserted into the gap between the elastic cantilever and the outer wall of the first housing to prevent the elastic cantilever from moving to the unlocking position.

[0011] According to another exemplary embodiment of the present invention, the guiding inclined surface of the pushing portion is adapted to contact and push the tongue portion of the latch safety to move the latch safety from the safety position to the pre-locking position.

[0012] According to another exemplary embodiment of the present invention, the fixed end of the elastic cantilever is connected to the pushing portion and is fixedly connected to the outer wall of the first housing through the pushing portion.

[0013] According to another exemplary embodiment of the present invention, the elastic latch further includes a pressing portion connected to the free end of the elastic cantilever. The pressing portion is exposed outside the second housing when the first housing is inserted into the second housing to allow a human finger to press the pressing portion.

[0014] According to another exemplary embodiment of the present invention, two positioning grooves extending along the axial direction are formed on the bottom wall of the guiding chute, and a positioning rib extending along the axial direction is formed on the inner surface of the sliding plate; when the latch safety is installed in the guiding chute and moved to the safety position, the positioning rib is positioned in one of the positioning grooves; when the latch safety is installed in the guiding chute and moved to the pre-locking position, the positioning rib is positioned in the other positioning groove.

[0015] According to another exemplary embodiment of the present invention, an indicating arrow is formed on the outer surface of the sliding plate, and a safety position mark and a pre-locking position mark are formed on the outer wall of the second housing; when the latch safety is installed in the guiding chute and moved to the safety position, the indicating arrow points to the safety position mark; when the latch safety is installed in the guiding chute and moved to the pre-locking position, the indicating arrow points to the pre-locking position mark.

[0016] According to another exemplary embodiment of the present invention, the guiding chute is surrounded by a first end wall and a second end wall opposite to each other in the circumferential direction and two side walls opposite to each other in the axial direction; the latch safety is adapted to move between the first end wall and the second end wall of the guiding chute along the circumferential direction.

[0017] According to another exemplary embodiment of the present invention, the sliding plate includes a first end and a second end opposite to each other in the circumferential direction and front and rear sides opposite to each other in the axial direction; the first end and the second end of the sliding plate respectively correspond to the first end wall and the second end wall of the guiding chute, and the front and rear sides of the sliding plate respectively correspond to the two side walls of the guiding chute.

[0018] According to another exemplary embodiment of the present invention, the connector assembly further includes: a first conductive terminal disposed in the first housing; and a second conductive terminal disposed in the second housing and adapted to be in electrical contact with the first conductive terminal.

[0019] According to another aspect of the present invention, there is also provided a connector, comprising: a housing in which terminal holes for accommodating conductive terminals are provided; the housing is provided with an elastic latch adapted to be locked to the mating housing; when the housing is inserted axially into the mating housing, the elastic latch cooperates with a latch safety to hold the housing and the mating housing in a mating position; the housing is provided with a pushing portion, and before the housing is inserted into the mating housing, the pushing portion is adapted to place the latch safety in a pre-locked position so that the housing can be inserted into the mating housing.

[0020] According to an exemplary embodiment of the present invention, the pushing portion is provided with a guiding inclined surface inclined with respect to the axis, and the pushing portion contacts and pushes the latch safety through the guiding inclined surface to drive and guide the latch safety to move circumferentially from the safety position to the pre-locked position.

[0021] In the foregoing respective exemplary embodiments according to the present invention, during the process of plugging in the first connector and the second connector, the pushing portion can push the latch safety to a pre-locked position where it does not interfere with the elastic latch. Therefore, in the present invention, before plugging in the first connector and the second connector, the operator does not need to check whether the latch safety has been reset to the pre-locked position, the operation is very simple, and it is safe to use.

[0022] Other objects and advantages of the present invention will be apparent from the following description with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the present invention. Description of the Drawings

[0023] Figure 1 A schematic diagram showing a connector assembly according to an exemplary embodiment of the present invention;

[0024] Figure 2 Showing Figure 1 A partial longitudinal sectional view of the shown connector assembly;

[0025] Figure 3 Showing Figure 1 A perspective schematic diagram of the first connector in;

[0026] Figure 3A Showing Figure 1 A partially enlarged schematic diagram of the first connector in;

[0027] Figure 4 ShowingFigure 1 Schematic perspective view of the second connector therein, showing the sliding groove on the second connector and the latch safety installed in the sliding groove;

[0028] Figure 5A Show Figure 4 Partial enlarged schematic view when viewed from the top, showing the sliding groove on the second connector and the latch safety not yet installed in the sliding groove;

[0029] Figure 5B Show Figure 4 Partial enlarged schematic view when viewed from the bottom, showing the sliding groove on the second connector and the latch safety not yet installed in the sliding groove;

[0030] Figure 6 Show Figure 5A And 5B Assembly schematic view of the second housing and the latch safety shown in;

[0031] Figure 7 Show Figure 1 Partial enlarged schematic view of the connector assembly shown in, where the latch safety is in the pre-locked position;

[0032] Figure 8 Show Figure 7 Cross-sectional view of the connector assembly shown in;

[0033] Figure 9 Show Figure 1 Partial enlarged schematic view of the connector assembly shown in, where the latch safety is in the safety position;

[0034] Figure 10 Show Figure 9 Cross-sectional view of the connector assembly shown in. Detailed implementation mode

[0035] The technical solutions of the present invention will be further specifically described below through embodiments and in combination with the drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation on the present invention.

[0036] In addition, in the following detailed description, for the sake of explanation, many specific details are set forth to provide a thorough understanding of the embodiments disclosed herein. However, it is apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

[0037] According to a general technical concept of the present invention, there is provided a connector assembly, comprising: a first connector including a first housing and a first terminal hole provided in the first housing for accommodating a first conductive terminal; and a second connector adapted to mate with the first connector, including a second housing and a second terminal hole provided in the second housing for accommodating a second conductive terminal, wherein the first housing is adapted to be partially inserted into the second housing along its axial direction, an elastic latch adapted to be locked to the second housing is formed on the first housing, a latch insurance capable of moving circumferentially along the second housing is mounted on the second housing, the latch insurance is adapted to move between an insurance position for preventing the elastic latch from unlocking and a pre-locking position for pre-installing the elastic latch on the second housing, a pushing portion is formed on the first housing, and when the pushing portion contacts the latch insurance, the pushing portion is adapted to place the latch insurance in the pre-locking position so that the first housing is inserted into the second housing.

[0038] Figure 1 Schematic diagram showing a connector assembly according to an exemplary embodiment of the present invention. Figure 2 Showing Figure 1 Longitudinal sectional view of the shown connector assembly.

[0039] As shown in 1 and Figure 2 As shown, in the illustrated embodiment, the connector assembly mainly includes a first connector 10 and a second connector 20. One of the first connector 10 and the second connector 20 is a plug connector, and the other is a socket connector adapted to mate with the plug connector. In the illustrated embodiment, the first connector 10 is a plug connector and is connected to one end of a cable 1. The second connector 20 is a socket connector and is mounted on an electrical device (not shown). When the first connector 10 is mated with the second connector 20, electrical connection between the cable 1 and the electrical device can be achieved, so that power can be supplied to the electrical device through the cable 1.

[0040] Figure 3 Showing Figure 1 Stereoscopic schematic diagram of the first connector 10 in. As Figures 1 to 3As shown, in the illustrated embodiment, the first connector 10 includes a first housing 110 and first conductive terminals 101 disposed in the first housing 110. The first conductive terminals 101 are arranged in first terminal holes of the first housing 110. The second connector 20 includes a second housing 210 and second conductive terminals 201 disposed in the second housing 210. The second conductive terminals 201 are arranged in second terminal holes of the second housing 210. In the illustrated embodiment, one end of the first conductive terminal 101 is crimped to the conductor of the cable 1, one end of the second conductive terminal 201 can be electrically connected to an electrical device, and the other end of the second conductive terminal 201 is inserted into the other end of the first conductive terminal 101, thereby enabling an electrical connection between the cable 1 and the electrical device.

[0041] Figure 3A Show Figure 1 Partial enlarged schematic view of the first connector 10 in; Figure 4 Show Figure 1 Stereo schematic view of the second connector 20 in, which shows the sliding groove 211 on the second connector 20 and the latch safety 220 installed in the sliding groove 211.

[0042] As Figures 1 - 4 Shown, in the illustrated embodiment, the first housing 110 is adapted to be partially inserted into the second housing 210 along its axial direction, and an elastic latch 111 adapted to be locked to the second housing 210 is formed on the first housing 110. A latch safety 220 capable of moving circumferentially is installed on the second housing 210.

[0043] Figure 7 Show Figure 1 Partial enlarged schematic view of the connector assembly shown, where the latch safety 220 is in the pre-locked position (or called the initial position); Figure 8 Show Figure 7 Cross-sectional view of the connector assembly shown; Figure 9 Show Figure 1 Partial enlarged schematic view of the connector assembly shown, where the latch safety 220 is in the safety position; Figure 10 Show Figure 9 Cross-sectional view of the connector assembly shown.

[0044] As Figures 1 - 4 To Figures 7 - 10 Shown, in the illustrated embodiment, the latch safety 220 is adapted to be in a safety position ( Figures 9 - 10 The position shown) that prevents the elastic latch 111 from unlocking and a pre-locked position ( Figures 7 - 8moves between the positions shown. In the illustrated embodiment, when the first connector 10 and the elastic latch 111 are pre - installed on the second housing 210, the latch safety 220 is in the pre - locked position, at which time the elastic latch 111 is allowed to be unlocked.

[0045] Figure 5A Show Figure 4 A partially enlarged schematic view when viewed from the top, which shows the sliding groove 211 on the second connector 20 and the latch safety 220 that has not been installed into the sliding groove 211; Figure 5B Show Figure 4 A partially enlarged schematic view when viewed from the bottom, which shows the sliding groove 211 on the second connector 20 and the latch safety 220 that has not been installed into the sliding groove 211; Figure 6 Show Figure 5A And 5B An assembly schematic view of the second housing 210 and the latch safety 220 shown.

[0046] As Figures 1 to 10 shown, in the illustrated embodiment, a pushing portion 112 is formed on the first housing 110. The pushing portion 112 is adapted to push the latch safety 220 from the safety position to the pre - locked position where it does not interfere with the elastic latch 111 during the process of inserting the first housing 110 into the second housing 210, so that the plug connector 10 can be inserted smoothly without the problem of collision and interference between the elastic latch 111 and the latch safety 220.

[0047] As Figure 3A And Figures 6 - 10 shown, in the illustrated embodiment, a guiding inclined surface 112a inclined axially with respect to the first connector is formed on the pushing portion 112. The pushing portion 112 contacts and pushes the latch safety 220 through the guiding inclined surface 112a to drive and guide the latch safety 220 to move circumferentially from the safety position to the pre - locked position.

[0048] As Figures 1 to 10 shown, in the illustrated embodiment, a guiding sliding groove 211 extending circumferentially is formed on the outer wall of the second housing 210. The latch safety 220 is slidably installed in the guiding sliding groove 211, and the guiding sliding groove 211 is used to guide the latch safety 220 to move circumferentially between the safety position and the pre - locked position.

[0049] As Figures 1 to 10As shown, in the illustrated embodiment, the latch safety 220 mainly includes a sliding plate 221 and one or more limiting portions 222. The sliding plate 221 is an arc-shaped plate extending circumferentially. The limiting portion 222 is connected to the bottom surface of the sliding plate 221. An opening 212 is formed in the second housing 210, and the limiting portion 222 extends into the second housing 210 through the opening 212. In the illustrated embodiment, the opening 212 is located on the bottom wall of the guiding chute 211 and is completely blocked by the sliding plate 221.

[0050] As Figures 1 to 10 shown, in the illustrated embodiment, the edges of the axially opposite front and rear sides of the opening 212 are respectively slidably held in the card slots between the limiting portion 222 and the second housing 210 to limit the radial movement of the latch safety 220. This enables the latch safety 220 to only move circumferentially in the guiding chute 211.

[0051] As Figures 1 to 10 shown, in the illustrated embodiment, the elastic latch 111 mainly includes an elastic cantilever 111a and a latch portion 111b. The elastic cantilever 111a is connected to the first housing 110 and is adapted to move between a locked position and an unlocked position. The latch portion 111b is formed on the elastic cantilever 111a and is adapted to latch to the second housing 210. The latch safety 220 includes a tongue portion 223 connected to a limiting portion 222, and the tongue portion 223 is adapted to be inserted into the gap between the elastic cantilever 111a and the outer wall of the first housing 110 to prevent the elastic cantilever 111a from moving to the unlocked position. In this way, the risk of accidental unlocking of the elastic latch 111 caused by misoperation of the operator can be avoided.

[0052] As Figures 1 to 10 shown, in the illustrated embodiment, the guiding inclined surface 112a of the pushing portion 112 is adapted to contact and push the tongue portion 223 of the latch safety 220 to move the latch safety 220 from the safety position to the pre-locked position.

[0053] As Figures 1 to 10 shown, in the illustrated embodiment, the fixed end of the elastic cantilever 111a is connected to the pushing portion 112 and is fixedly connected to the outer wall of the first housing 110 through the pushing portion 112. However, the present invention is not limited to the illustrated embodiment, and the pushing portion 112 can also be separated from the elastic cantilever 111a.

[0054] As Figures 1 to 10As shown, in the illustrated embodiment, the elastic latch 111 further includes a pressing portion 111c connected to the free end of the elastic cantilever 111a. The pressing portion 111c is exposed outside the second housing 210 when the first housing 110 is inserted into the second housing 210, allowing a human finger to press the pressing portion 111c. In this way, after the latch safety 220 is moved to the pre-locked position, the elastic latch 111 can be unlocked by pressing the pressing portion 111c with a finger.

[0055] As Figures 1 to 10 shown, in the illustrated embodiment, two positioning grooves 211g extending axially are formed on the bottom wall of the guiding chute 211, and a positioning rib 221g extending axially is formed on the inner surface of the sliding plate 221. When the latch safety 220 is installed in the guiding chute 211 and moved to the safety position, the positioning rib 221g is positioned in one of the positioning grooves 211g. When the latch safety 220 is installed in the guiding chute 211 and moved to the pre-locked position, the positioning rib 221g is positioned in the other positioning groove 211g. The design of the positioning rib 221g and the positioning grooves 211g can not only enhance the operating feel of the operator, but also position the latch safety 220 in the safety position and the pre-locked position respectively.

[0056] As Figures 1 to 10 shown, in the illustrated embodiment, an indicating arrow 221f is formed on the outer surface of the sliding plate 221, and a safety position mark (for example, a closed lock mark, indicating that the elastic latch 111 cannot be unlocked) and a pre-locked position mark (for example, an open lock mark, indicating that the elastic latch 111 can be unlocked) are formed on the outer wall of the second housing 210. When the latch safety 220 is installed in the guiding chute 211 and moved to the safety position, the indicating arrow 221f points to the safety position mark. When the latch safety 220 is installed in the guiding chute 211 and moved to the pre-locked position, the indicating arrow 221f points to the pre-locked position mark. Therefore, when the indicating arrow 221f points to the pre-locked position mark, the elastic latch 111 can be unlocked by pressing the pressing portion 111c of the elastic latch 111 with a finger.

[0057] As Figures 4 to 10 shown, in the illustrated embodiment, the guiding chute 211 is surrounded by a first end wall 211a and a second end wall 211b opposite in the circumferential direction and two side walls 211c opposite in the axial direction. The latch safety 220 is adapted to move circumferentially between the first end wall 211a and the second end wall 211b of the guiding chute 211.

[0058] As Figures 4 to 10As shown, in the illustrated embodiment, the sliding plate 221 includes a first end and a second end that are circumferentially opposite, and front and rear sides that are axially opposite. The first end and the second end of the sliding plate 221 respectively correspond to the first end wall 211a and the second end wall 211b of the guiding chute 211, and the front and rear sides of the sliding plate 221 respectively correspond to the two side walls 211c of the guiding chute 211.

[0059] As Figures 4 to 10 shown, in the illustrated embodiment, when the latch safety 220 is moved along the guiding chute 211 to the safety position, the end face of the first end of the sliding plate 221 abuts against the first end wall 211a of the guiding chute 211, and the top surface of the first end wall 211a of the guiding chute 211 is higher than the outer surface of the sliding plate 221, so that a human finger cannot touch the end face of the first end of the sliding plate 221. In this way, the operator cannot push the end face of the first end of the sliding plate 221 with a finger to reset the latch safety 220, thereby being able to avoid the latch safety 220 from being reset erroneously or accidentally, and improving the use safety.

[0060] As Figures 4 to 10 shown, in the illustrated embodiment, the outer surface of the sliding plate 221 is a smooth surface, and in the illustrated embodiment, it is a smooth arc surface, so that the frictional force between a human finger and the outer surface of the sliding plate 221 is not sufficient to push the latch safety 220 to move. In this way, it is possible to further avoid the latch safety 220 from being reset erroneously or accidentally, thereby further improving the use safety.

[0061] As Figures 4 to 10 shown, in the illustrated embodiment, a slot 221a is formed on the end face of the first end of the sliding plate 221 or on the inner wall surface of the first end wall 211a of the sliding slot 211. The slot 221a is configured such that a human finger cannot be inserted, but a corresponding tool (not shown, for example, a flat-headed screwdriver) can be inserted, so that the latch safety 220 can be toggled from the safety position to the pre-locked position by inserting the tool into the slot 221a. Therefore, in the present invention, to perform the reset operation of the latch safety 220 from the safety position to the pre-locked position, a tool must be used, and it cannot be achieved with a human finger. Therefore, the present invention can effectively prevent the latch safety 220 from being reset erroneously or accidentally due to misoperation by the operator, and improves the use safety.

[0062] As Figures 4 to 10As shown, in the illustrated embodiment, the sides on the front and rear sides of the sliding plate 221 are respectively abutted against the two side walls 211c of the guiding chute 211, and the top surfaces of the two side walls 211c of the guiding chute 211 are higher than the outer surface of the sliding plate 221, so that the human finger cannot touch the sides on the front and rear sides of the sliding plate 221. In this way, the human hand cannot reset the latch safety 220 by grasping the sides on the front and rear sides of the sliding plate 221, which can further prevent the latch safety 220 from being reset wrongly or accidentally, thereby further improving the use safety.

[0063] As Figures 4 to 10 shown, in the illustrated embodiment, a notch 2110 is formed on the second end wall 211b of the guiding chute 211 and / or the top surface of the second end wall 211b of the guiding chute 211 is lower than the outer surface of the sliding plate 221, so as to allow the human finger to touch the end face of the second end of the sliding plate 221, so that the sliding plate 221 can be pushed from the pre-locked position to the safety position by the finger.

[0064] As Figures 4 to 10 shown, in the illustrated embodiment, when the latch safety 220 is moved to the pre-locked position, the second end of the sliding plate 221 abuts against the second end wall 211b of the guiding chute 211. In this way, the latch safety 220 can be limited to the pre-locked position.

[0065] Those skilled in the art can understand that the above-described embodiments are all exemplary, and those skilled in the art can improve them, and the structures described in various embodiments can be freely combined without conflict in terms of structure or principle.

[0066] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present invention and should not be construed as a limitation of the present invention.

[0067] Although some embodiments of the general concept of the present invention have been shown and described, those of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

[0068] It should be noted that the term "comprising" does not exclude other elements or steps, and the term "a" or "one" does not exclude a plurality. In addition, any reference numerals of the claims should not be construed as limiting the scope of the present invention.

Claims

1. A connector component, characterized in that, Comprising: A first connector, including a first housing and a first terminal hole provided in the first housing for accommodating first conductive terminals; And A second connector, adapted to mate with the first connector, including a second housing and a second terminal hole provided in the second housing for accommodating second conductive terminals, The first housing is adapted to be partially inserted into the second housing along its axial direction, and an elastic latch adapted to be locked to the second housing is formed on the first housing, A latch safety that can move circumferentially is mounted on the second housing, and the latch safety is adapted to move between a safety position that prevents the elastic latch from unlocking and a pre-locking position that pre-assembles the elastic latch on the second housing, A pushing portion is formed on the first housing. When the pushing portion contacts the latch safety, the pushing portion is adapted to place the latch safety in the pre-locking position so that the first housing can be inserted into the second housing, A guiding inclined surface inclined with respect to the axial direction is formed on the pushing portion. The pushing portion contacts and pushes the latch safety through the guiding inclined surface to drive and guide the latch safety to move circumferentially from the safety position to the pre-locking position.

2. The connector assembly according to claim 1, wherein: A guiding sliding groove extending circumferentially is formed on the outer wall of the second housing, and the latch safety is slidably mounted in the guiding sliding groove. The guiding sliding groove is used to guide the latch safety to move circumferentially between the safety position and the pre-locking position.

3. The connector assembly according to claim 2, wherein: The latch safety includes: A sliding plate, slidably mounted in the guiding sliding groove; and One or several limiting portions, connected to the sliding plate, An opening is formed on the second housing, and the limiting portion extends into the second housing through the opening, Edges of the opening on the front and rear sides opposite to each other in the axial direction are respectively slidably clamped in a clamping groove between the limiting portion and the second housing to limit the radial movement of the latch safety.

4. The connector assembly according to claim 3, wherein: The elastic latch includes: An elastic cantilever, connected to the first housing, adapted to move between a locking position and an unlocking position; and A latching portion, formed on the elastic cantilever, adapted to latch to the second housing. The latch safety includes a tongue portion connected to the limiting portion, and the tongue portion is adapted to be inserted into a gap between the elastic cantilever and the outer wall of the first housing to prevent the elastic cantilever from moving to the unlocking position.

5. The connector assembly according to claim 4, wherein: The guiding inclined surface of the pushing portion is adapted to contact and push the tongue portion of the latch safety to move the latch safety from the safety position to the pre-locking position.

6. The connector assembly according to claim 4, wherein: The fixed end of the elastic cantilever is connected to the pushing portion and is fixedly connected to the outer wall of the first housing through the pushing portion.

7. The connector assembly according to claim 4, wherein: The elastic latch further includes a pressing portion connected to the free end of the elastic cantilever. The pressing portion is exposed outside the second housing when the first housing is inserted into the second housing, allowing a human finger to press the pressing portion.

8. The connector assembly according to claim 3, wherein: Two positioning grooves extending along the axial direction are formed on the bottom wall of the guiding chute, and a positioning rib extending along the axial direction is formed on the inner surface of the sliding plate; When the latch safety is installed in the guiding chute and moved to the safety position, the positioning rib is positioned in one of the positioning grooves; When the latch safety is installed in the guiding chute and moved to the pre-locking position, the positioning rib is positioned in the other positioning groove.

9. The connector assembly according to claim 3, wherein: An indicating arrow is formed on the outer surface of the sliding plate, and a safety position mark and a pre-locking position mark are formed on the outer wall of the second housing; When the latch safety is installed in the guiding chute and moved to the safety position, the indicating arrow points to the safety position mark; When the latch safety is installed in the guiding chute and moved to the pre-locking position, the indicating arrow points to the pre-locking position mark.

10. The connector assembly according to claim 3, wherein: The guiding chute is surrounded by a first end wall and a second end wall opposite in the circumferential direction and two side walls opposite in the axial direction; The latch safety is adapted to move between the first end wall and the second end wall of the guiding chute along the circumferential direction.

11. The connector assembly according to claim 10, wherein: The sliding plate includes a first end and a second end opposite in the circumferential direction and front and rear sides opposite in the axial direction; The first end and the second end of the sliding plate respectively correspond to the first end wall and the second end wall of the guiding chute, and the front and rear sides of the sliding plate respectively correspond to the two side walls of the guiding chute.

12. The connector assembly according to claim 1, wherein Further included is: A first conductive terminal disposed in the first housing; and A second conductive terminal disposed in the second housing and adapted to be in electrical contact with the first conductive terminal.

13. A connector, characterized in that, Including: A housing in which terminal holes for accommodating conductive terminals are provided; The housing is provided with an elastic latch adapted to be locked to a mating housing; after the housing is inserted into the mating housing along its axial direction, the elastic latch cooperates with the latch safety to hold the housing and the mating housing in the mating position; The housing is provided with a pushing portion. Before the housing is inserted into the mating housing, the pushing portion is adapted to place the latch safety in the pre-locking position so that the housing can be inserted into the mating housing, The pushing portion is provided with a guiding inclined surface inclined with respect to the axial direction. The pushing portion contacts and pushes the latch safety through the guiding inclined surface to drive and guide the latch safety to move from the safety position to the pre-locking position along the circumferential direction.

Images