CN218123785U - Locking piece, charging seat and charging seat subassembly - Google Patents

Abstract

The utility model discloses a locking piece, charging seat and charging seat subassembly. The locking piece includes: a main body part formed with a terminal through-hole allowing the charging terminal to pass therethrough; and a blocking portion connected to the main body portion and having a locking surface. The locking member is adapted to move between a pre-lock position disengaged from the charging terminal and a final lock position engaged with the charging terminal. When the locking piece is located at the final locking position, the locking piece is blocked by a connector inserted into a connector interface of the charging seat in an unlocking direction so as to keep the locking piece at the final locking position. The utility model discloses in, the locking piece can be kept at the final lock position reliably by the connector of inserting in the connector interface of charging seat for the locking piece does not exist by the risk of unexpected unblock.

Description

Locking piece, charging seat and charging seat subassembly

Technical Field

The utility model relates to a locking piece for locking charging terminal on charging seat, including the charging seat of this locking piece and including the charging seat subassembly of this charging seat.

Background

In the prior art, a charging seat used for matching with a charging gun is arranged on the new energy vehicle so as to charge a vehicle-mounted battery. In order to prevent the charging terminals in the charging stand from being ejected by the charging gun, it is necessary to lock the charging terminals in the charging stand using a locking member. The locking member is generally movable between a pre-lock position disengaged from the charging terminal and a final lock position engaged with the charging terminal. When assembling the charging dock, the locking element must be pushed to the final locking position. However, at the time of actual assembly, it is easy to forget to push the lock member to the final lock position, which causes a risk of ejection of the charging terminal.

Furthermore, in the prior art, in order to be able to hold the locking member in the final locking position, it is necessary to provide a locking portion on the locking member, which is adapted to be locked to the housing or the end cover of the charging stand to hold the locking member in the final locking position. Typically, the latch portion includes a resilient cantilever and a boss formed on a free end of the resilient cantilever for engaging with a boss on the housing or end cap of the charging dock. However, the strength of the locking portion is weak and is easily damaged. Once the locking portion is damaged, the locking member cannot be reliably held in the final locking position, which may lead to a risk of the locking member being accidentally unlocked.

SUMMERY OF THE UTILITY MODEL

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

According to an aspect of the present invention, there is provided a locking member for locking a charging terminal on a charging stand. The locking member includes: a main body part formed with a terminal through-hole allowing the charging terminal to pass therethrough; and a blocking portion connected to the main body portion and having a locking surface. The locking member is adapted to move between a pre-lock position disengaged from the charging terminal and a final lock position engaged with the charging terminal. When the locking piece is located at the final locking position, the locking piece is blocked by a connector inserted into a connector interface of the charging seat in an unlocking direction so as to keep the locking piece at the final locking position.

According to an exemplary embodiment of the present invention, the barrier includes: a blocking wall extending transversely to the unlocking direction; and a connecting wall connected between the blocking wall and the main body portion.

According to another exemplary embodiment of the present invention, the locking surface is a side of the blocking wall facing the main body part in the unlocking direction.

According to another exemplary embodiment of the present invention, the blocking wall and the connecting wall enclose an accommodation space that allows insertion of a terminal holder of the connector; the lock surface is adapted to abut on a side surface of the terminal holding body inserted into the accommodation space.

According to another exemplary embodiment of the present invention, the connecting wall comprises: a first connecting wall continuously extending from the blocking wall to the main body part and connected to the main body part; and a second connection wall, vertically connected to the blocking wall and the first connection wall and connected to the main body, wherein the blocking wall and the first connection wall form a side wall of the accommodating space, the second connection wall forms a bottom wall of the accommodating space, a protrusion part protruding in the axial direction of the terminal through hole is formed on the main body, the terminal through hole penetrates through the protrusion part, and the first connection wall extends continuously from the blocking wall to the protrusion part and is connected to the protrusion part.

According to another exemplary embodiment of the present invention, a side opening is formed on the blocking wall; and a bottom opening allowing the output terminal on the circuit board or the lead frame of the charging stand to pass through is formed on the second connection wall.

According to another exemplary embodiment of the present invention, before the locking piece moves from the pre-locking position to the final locking position, the blocking wall is located on a mating path of the connector mated with the charging seat, so as to prevent the connector from being plugged into the charging seat.

According to another exemplary embodiment of the present invention, a positioning flange is formed on a hole wall of the terminal through-hole; when the locking member is in the final locking position, a locating flange on a bore wall of the terminal through-bore engages a radial flange on the charging terminal to axially lock the charging terminal; when the locking member is in the pre-lock position, the locating flange on the wall of the terminal through hole is disengaged from the radial flange on the charging terminal to allow axial movement of the charging terminal.

According to another exemplary embodiment of the present invention, the locking member further comprises: a locking portion including: a resilient cantilever having one end connected to the body portion; and a latch protrusion protrudingly formed on a free end of the elastic cantilever, the latch protrusion for engaging with a counterpart latch portion formed on an inner wall of a case of the charging stand to hold the locking member at the final locking position.

According to another exemplary embodiment of the present invention, the blocking portion further has a blocking face; when the locking piece is located at the pre-locking position, the blocking surface is located at a position interfering with a connector to be inserted into a connector interface of the charging seat so as to block the connector from being inserted into the connector interface; when the locking piece is located at the final locking position, the blocking surface is located at a position which does not interfere with a connector to be inserted into a connector interface of the charging seat so as to allow the connector to be inserted into the connector interface.

According to another exemplary embodiment of the present invention, when the locking piece is located in any position between the pre-lock position and the final lock position, the blocking surface is located at a position interfering with a connector to be inserted into a connector interface of the charging stand, so as to block the connector from being inserted into the connector interface.

According to the utility model discloses a further exemplary embodiment, the blocking part include with unblock direction vertically blocks the wall, the locking face does block the wall block face above the unblock direction the side of main part, block the face do block the terminal surface of wall.

According to another exemplary embodiment of the present invention, the locking face is parallel to the axial direction of the terminal through hole, the blocking face is perpendicular to the axial direction of the terminal through hole.

According to another exemplary embodiment of the present invention, the locking member is one piece.

According to another aspect of the utility model, still provide a charging seat, include: a housing; the locking piece is movably arranged in the shell and can move between a pre-locking position and a final locking position; a circuit board or lead frame fixedly mounted in the housing and having output terminals; and an end cap mounted on a port of the housing.

According to an exemplary embodiment of the present invention, a connection port is formed on the end cap, and the output terminal extends into the connection port to constitute a connector interface adapted to mate with a connector together with the connection port.

According to another exemplary embodiment of the present invention, the charging seat further comprises: a charging terminal provided in the housing; and signal terminals disposed in the housing and electrically connected with corresponding output terminals on the circuit board or the lead frame.

According to another exemplary embodiment of the present invention, the charging seat further comprises: a temperature sensor mounted on the circuit board for detecting a temperature of the charging terminal; and the heat conducting pad is arranged on the circuit board and used for transferring heat on the charging terminal to the temperature sensor, and the temperature sensor is electrically connected with the corresponding output terminal on the circuit board or the lead frame.

According to another exemplary embodiment of the present invention, the peripheral wall of the connection port protrudes from the top wall of the end cap, and an engaging projection is formed on an outer wall surface of the peripheral wall of the connection port, the engaging projection being adapted to be engaged with an elastic snap of a catch piece provided on a housing of the connector.

According to another aspect of the utility model, a charging seat subassembly is provided, include: the charging seat; and a connector inserted into the connector interface of the charging stand to be electrically connected with the output terminal. The connector includes: a housing; a terminal holding body provided in the housing; a connection terminal provided in the terminal holder for mating with the output terminal; and a locking piece provided on an outer side of the housing for locking the housing to a peripheral wall of the connection port.

In each of the foregoing exemplary embodiments according to the present invention, the locking piece can be reliably held in the final lock position by the connector inserted into the connector interface of the charging stand, so that there is no risk of the locking piece being accidentally unlocked.

Furthermore, in some aforementioned exemplary embodiments of the present invention, when forgetting to push the locking piece to the final locking position, the blocking portion on the locking piece can block the connector from being inserted into the connector interface on the charging seat, so that it can be visually determined whether the locking piece has been pushed to the final locking position in the process of assembling the charging seat assembly.

Other objects and advantages of the present invention will become apparent from the following description of the invention which refers to the accompanying drawings, which serve to provide a thorough understanding of the invention.

Drawings

Fig. 1 shows a perspective view of a charging dock assembly according to an exemplary embodiment of the present invention, wherein the housing of the charging dock is not shown and the connector has not yet been plugged into the charging dock;

fig. 2 shows a perspective view of a charging dock according to an exemplary embodiment of the present invention, wherein the housing of the charging dock is not shown;

fig. 3 shows a perspective view of a charging dock according to an exemplary embodiment of the present invention, wherein the housing and end cap of the charging dock are not shown and the locking member is in the prelock position;

fig. 4 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, wherein the locking member is in a pre-lock position;

fig. 5 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, with the locking member in the prelock position and without the end cap;

fig. 6 shows a perspective view of a charging stand assembly according to an exemplary embodiment of the present invention, with the locking member in a pre-lock position and without the end cap shown;

fig. 7 shows an axial cross-sectional view of a charging dock assembly according to an exemplary embodiment of the present invention with the locking member in a pre-lock position and showing the catch member on the connector;

fig. 8 shows a perspective view of a charging dock according to an exemplary embodiment of the present invention, where the housing and end cap of the charging dock are not shown and the locking piece is in the final lock position;

fig. 9 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, with the locking member in a final lock position;

fig. 10 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, with the locking member in a final lock position and without the end cap shown;

fig. 11 shows a perspective view of a charging stand assembly according to an exemplary embodiment of the present invention, with the locking member in the final lock position and without the end cap;

fig. 12 shows an axial cross-sectional view of a charging dock assembly according to an exemplary embodiment of the present invention with the locking member in a final lock position and showing the catch member on the connector.

Detailed Description

The technical solution of the present invention is further specifically described below by way of embodiments and with reference to the accompanying drawings. In the specification, the same or similar reference numerals denote 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 general inventive concept and should not be construed as limiting the invention.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagram form to simplify the drawing.

According to a general technical concept of the present invention, there is provided a locking member for locking a charging terminal 3 on a charging stand. The lock member 5 includes: a main body portion 50 formed with a terminal through-hole 501 allowing the charging terminal 3 to pass therethrough; and blocking portions 51, 52, 53 connected to the main body portion 50 and having a locking surface 51b. The locking member 5 is adapted to move between a pre-lock position disengaged from the charging terminal 3 and a final lock position engaged with the charging terminal 3. When the locker 5 is located at the final locking position, the locker 5 is blocked by the connector 2 inserted into the connector interface of the charging stand in the unlocking direction to maintain the locker 5 at the final locking position.

According to another general technical concept of the present invention, there is provided a charging stand, including: a housing; the locking piece 5 is movably arranged in the shell and can move between a pre-locking position and a final locking position; a circuit board or lead frame 6 fixedly mounted in the housing and having output terminals 61; and an end cap 1 mounted on a port of the housing.

According to another general technical concept of the present invention, there is provided a charging stand assembly, comprising: the charging seat; and a connector 2 inserted into a connector interface of the charging stand to be electrically connected to the output terminal 61. The connector 2 includes: a housing 21; a terminal holding body 22 provided in the housing 21; a connection terminal provided in the terminal holding body 22 for mating with the output terminal 61; and a locking piece 23 provided on the outside of the housing 21 for locking the housing 21 to the peripheral wall 120 of the connection port 12.

Fig. 1 shows a perspective view of a charging dock assembly according to an exemplary embodiment of the present invention, wherein the housing of the charging dock is not shown and the connector 2 is not yet plugged into the charging dock; fig. 2 shows a perspective view of a charging stand according to an exemplary embodiment of the present invention, wherein the casing of the charging stand is not shown.

As shown in fig. 1 and 2, in the illustrated embodiment, the cradle assembly consists essentially of a cradle and a connector 2. The connector 2 is inserted into a connector interface on the charging stand to be electrically connected to an output terminal 61 on the charging stand.

Fig. 8 shows a perspective view of the charging stand according to an exemplary embodiment of the present invention, wherein the housing of the charging stand and the end cap 2 are not shown, and the locking member 5 is in the final locking position; fig. 9 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, wherein the locking member 5 is in a final locking position; fig. 10 shows an axial cross-sectional view of a charging seat assembly according to an exemplary embodiment of the present invention, wherein the locking member 5 is in the final locking position and the end cap 1 is not shown; fig. 11 shows a schematic perspective view of a charging stand assembly according to an exemplary embodiment of the present invention, wherein the locking member 5 is in the final locking position and the end cap 1 is not shown; fig. 12 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, wherein the locking member 5 is in a final lock position and the catch member 23 on the connector 2 is shown.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, the latch 5 is used to latch the charging terminals 3 on the charging dock. This locking piece 5 mainly comprises: a main body portion 50 and blocking portions 51, 52, 53. The main body portion 50 is formed with a terminal through-hole 501 that allows the charging terminal 3 to pass through. The blocking portions 51, 52, 53 are connected to the main body portion 50 and have locking surfaces 51b perpendicular to the first direction. In the illustrated embodiment, the locking member 5 is adapted to move in the first direction between a pre-lock position (the position shown in fig. 3 to 7) disengaged from the charging terminal 3 and a final lock position (the position shown in fig. 8 to 12) engaged with the charging terminal 3. That is, the lock member 5 can be moved from the final lock position to the preliminary lock position in the unlocking direction parallel to the first direction, and can also be moved from the preliminary lock position to the final lock position in the locking direction opposite to the unlocking direction.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, when the locker 5 is in the final locking position, the connector 2 inserted into the connector interface of the charging stand abuts against the locking surface 51b to hold the locker 5 in the final locking position. Thus, the locking member 5 can be prevented from being pushed to the pre-lock position by the inserted connector 2, and the safety in use can be improved.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, the aforementioned first direction (i.e., the moving direction of the locking piece 5) is perpendicular to the axial direction of the terminal through-hole 501. However, the present invention is not limited to this, and the first direction may be slightly inclined to the axial direction of the terminal through hole 501.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, the blocking portions 51, 52, 53 include: a blocking wall 51 and connecting walls 52, 53. The blocking wall 51 is perpendicular to the first direction. The connecting walls 52, 53 connect between the barrier wall 51 and the main body 50. The lock surface 51b is a side surface of the blocking wall 51 facing the main body 50 in the first direction.

As shown in fig. 1-2 and fig. 8-12, in the illustrated embodiment, the blocking wall 51 and the connecting walls 52, 53 enclose an accommodation space that allows insertion of one end of the terminal holder 22 of the connector 2. The lock face 51b is adapted to abut on a side face of the terminal holding body 22 inserted into the accommodation space. Thus, the lock member 5 can be reliably prevented from being retreated from the final lock position to the preliminary lock position by the terminal holding body 22 of the connector 2, eliminating the risk of the lock member 5 being unlocked accidentally.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, the connecting walls 52, 53 comprise a first connecting wall 52. The first connecting wall 52 continuously extends from the blocking wall 51 to the main body portion 50 and is connected to the main body portion 50. The blocking wall 51 and the first connecting wall 52 constitute side walls of the aforementioned accommodating space.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, a boss portion 54 protruding in the axial direction of the terminal through-hole 501 is formed on the main body portion 50. The terminal through-hole 501 penetrates the boss 54. The first connecting wall 52 continuously extends from the blocking wall 51 to the boss 54 and is connected to the boss 54. This improves the strength of connection with the main body 50.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, the connecting walls 52, 53 further include a second connecting wall 53, the second connecting wall 53 being connected to the main body portion 50 perpendicularly to the blocking wall 51 and the first connecting wall 52. The second connecting wall 53 constitutes a bottom wall of the aforementioned accommodating space.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, a side opening 510 is formed in the barrier wall 51 so that material may be reduced. A bottom opening 530 allowing the output terminals 61 on the circuit board 6 or the lead frame of the charging stand to pass therethrough is formed on the second connecting wall 53.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, a positioning flange 5a is formed on the hole wall of the terminal through-hole 501. When the lock member 5 is in the final lock position, the positioning flange 5a on the hole wall of the terminal through-hole 501 engages with the radial flange 3a on the charging terminal 3 to axially lock the charging terminal 3. When the lock member 5 is in the pre-lock position, the positioning flange 5a on the hole wall of the terminal through hole 501 is separated from the radial flange 3a on the charging terminal 3 to allow the charging terminal 3 to move axially.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, the locking member 5 further includes a locking portion 55. The locking portions 55 are connected to the main body 50 for engagement with mating locking portions formed on the inner wall of the housing (not shown) of the charging stand to hold the locking member 5 in the final locking position.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, the locking portion 55 includes: a resilient cantilever 55a and a latch protrusion 55b. One end of the elastic cantilever 55a is connected to the main body portion 50. A latching projection 55b is protrudingly formed on a free end of the elastic cantilever 55 a. The latch projections 55b are for engagement with the counterpart latch portions to hold the locking member 5 in the final locking position.

As shown in fig. 1-2 and 8-12, in the illustrated embodiment, an engagement portion 56 is formed on the main body portion 50 of the locking member 5. The engagement portion 56 is adapted to engage with an operating tool inserted from the insertion hole 13 on the end cover 1 of the charging stand to be able to drive the lock piece 5 between the preliminary lock position and the final lock position by the operating tool. The engaging portion 56 may be a recessed portion or a raised portion formed on the top surface of the main body portion 50.

Fig. 3 shows a schematic perspective view of the charging stand according to an exemplary embodiment of the present invention, wherein the casing and the end cap 1 of the charging stand are not shown and the locking piece 5 is in the pre-locking position; fig. 4 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, with the locking member 5 in a pre-lock position; fig. 5 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the invention, wherein the locking member 5 is in a pre-lock position and the end cap 1 is not shown; fig. 6 shows a schematic perspective view of a charging stand assembly according to an exemplary embodiment of the present invention, wherein the locking member 5 is in the pre-lock position and the end cap 1 is not shown; fig. 7 shows an axial cross-sectional view of a charging stand assembly according to an exemplary embodiment of the present invention, wherein the locking member 5 is in a pre-lock position and the catch member 23 on the connector 2 is shown.

As shown in fig. 1 to 12, in the illustrated embodiment, before the locking member 5 moves from the pre-locking position to the final locking position, the blocking wall 51 is located on the mating path of the connector 2 mated with the charging dock to prevent the connector 2 from being plugged into the charging dock.

As shown in fig. 1 to 12, in the illustrated embodiment, the blocking portions 51, 52, 53 also have a blocking face 51a. When the lock member 5 is located at the pre-lock position, the blocking face 51a is located at a position interfering with the connector 2 to be inserted into the connector interface of the charging stand to block the insertion of the connector 2 into the connector interface. When the lock member 5 is located at the final lock position, the blocking face 51a is located at a position not interfering with the connector 2 to be inserted into the connector interface of the charging stand to allow the connector 2 to be inserted into the connector interface. In this way, it is possible to visually judge whether or not the locking member 5 has been pushed to the final locking position by observing whether or not the connector 2 can be inserted into the connector interface, which is very convenient in practical use.

As shown in fig. 1 to 12, in the illustrated embodiment, when the locking piece 5 is located at any position between the preliminary locking position and the final locking position, the blocking surface 51a is located at a position interfering with the connector 2 to be inserted into the connector interface of the charging stand to block the insertion of the connector 2 into the connector interface. That is, in the present invention, as long as the locking member 5 is not pushed to the final locking position, the connector 2 is interfered by the blocking surface 51a and cannot be inserted into the connector interface of the charging stand.

As shown in fig. 1 to 12, in the illustrated embodiment, the blocking portions 51, 52, 53 include a blocking wall 51 perpendicular to the first direction. The lock surface 51b is a side surface of the stopper wall 51 facing the main body 50 in the first direction, and the stopper surface 51a is an end surface of the stopper wall 51. In the illustrated embodiment, the locking surface 51b is parallel to the axial direction of the terminal through-hole 501, and the blocking surface 51a is perpendicular to the axial direction of the terminal through-hole 501.

As shown in fig. 1 to 12, in the illustrated embodiment, the locking member 5 may be a one-piece molded part, for example, the locking member 5 may be a one-piece injection molded part.

As shown in fig. 1 to 12, in an exemplary embodiment of the present invention, a charging socket is further disclosed. This charging seat includes: a housing (not shown), a charging terminal 3, a lock member 5, a circuit board 6, and an end cap 1. The charging terminal 3 is provided in the housing. The locking member 5 is movably mounted in the housing to be movable between a prelock position and a final lock position. The circuit board 6 is fixedly mounted in the housing and has output terminals 61. The end cap 1 is mounted on a port of the housing. A connection port 12 is formed in the end cap 1. The output terminals 61 protrude into the connection port 12 to constitute a connector interface adapted to mate with the connector 2 together with the connection port 12.

Note that the present invention is not limited to the illustrated embodiment, and for example, the aforementioned circuit board 6 may be replaced with a lead frame.

As shown in fig. 1 to 12, in the illustrated embodiment, the charging stand further includes signal terminals 4, and the signal terminals 4 are disposed in the housing and electrically connected with corresponding output terminals 61 on the circuit board 6 or the lead frame.

As shown in fig. 1 to 12, in the illustrated embodiment, the charging dock further includes: a temperature sensor 62 and a thermal pad 63. The temperature sensor 62 is mounted on the circuit board 6 for detecting the temperature of the charging terminal 3. A thermal pad 63 is provided on the circuit board 6 for transferring heat on the charging terminal 3 to the temperature sensor 62. The temperature sensors 62 are electrically connected to corresponding output terminals 61 on the circuit board or lead frame 6.

As shown in fig. 1 to 12, in the illustrated embodiment, the peripheral wall 120 of the connection port 12 protrudes from the top wall 10 of the cap 1, and an engagement projection 12a is formed on the outer wall surface of the peripheral wall 120 of the connection port 12, the engagement projection 12a being adapted to engage with a resilient catch 23a of a catch piece 23 provided on the housing 21 of the connector 2. When the locking member 5 is in the prelock position, the resilient catch 23a of the locking member 23 is in a state of being separated from the engaging projection 12 a. When the locking member 5 is in the final locking position, the resilient catch 23a of the locking member 23 is in an engaged state with the engaging projection 12 a.

As shown in fig. 1 to 12, in the illustrated embodiment, a terminal insertion port 11 allowing insertion of the charging terminal 3 and an insertion hole 13 allowing insertion of an operating tool are also formed in the end cap 1.

As shown in fig. 1 to 12, in an exemplary embodiment of the present invention, a charging stand assembly is also disclosed. This charging seat subassembly includes: a charging cradle and a connector 2. The connector 2 is inserted into a connector interface on the charging stand to be electrically connected to the output terminal 61.

As shown in fig. 1 to 12, in the illustrated embodiment, the connector 2 includes: a housing 21, a terminal holding body 22, a connection terminal (not shown), and a locking piece 23. The terminal holding body 22 is provided in the housing 21. The connection terminal is provided in the terminal holder 22 for mating with the output terminal 61. A locking piece 23 is provided on the outside of the housing 21 for locking the housing 21 to the peripheral wall 120 of the connection port 12.

As shown in fig. 1 to 12, in the illustrated embodiment, the blocking portions 51, 52, 53 and the locking portion 55 provide a double security means of holding the locking member 5 in the final locking position. Therefore, in the present invention, even if the elastic cantilever 55a or the latch protrusion 55b of the latch portion 55 is damaged, the locking member 5 is reliably held at the final locking position by the connector 2 abutting on the locking surface 51b of the blocking portion 51, 52, 53, so that the locking member 5 is not accidentally unlocked, and the use safety is improved.

It is understood by those skilled in the art that the above-described embodiments are exemplary and can be modified by those skilled in the art, and that the structures described in the various embodiments can be freely combined without conflict in structure or principle, and that such modifications are intended to fall within the scope of the present invention.

Although the present invention has been described in connection with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify preferred embodiments of the present invention, and should not be construed as limiting the present invention.

Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.

It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude a plurality. Additionally, any element numbers of the claims should not be construed as limiting the scope of the invention.

Claims (20)

1. A locking member for locking a charging terminal on a charging stand, comprising:

a main body part formed with a terminal through-hole allowing the charging terminal to pass therethrough; and

a blocking portion connected to the main body portion and having a locking surface,

the locking member is adapted to move between a pre-lock position disengaged from the charging terminal and a final lock position engaged with the charging terminal,

when the locking piece is located at the final locking position, the locking piece is blocked by a connector inserted into a connector interface of the charging seat in an unlocking direction so as to keep the locking piece at the final locking position.

2. A lock according to claim 1 wherein:

the blocking portion includes:

a blocking wall extending transversely to the unlocking direction; and

and a connection wall connected between the blocking wall and the main body.

3. A lock according to claim 2 wherein:

the locking surface is a side surface of the blocking wall facing the main body portion in the unlocking direction.

4. A lock according to claim 3 wherein:

the blocking wall and the connecting wall enclose an accommodation space into which a terminal holder of the connector is inserted;

the lock surface is adapted to abut on a side surface of the terminal holding body inserted into the accommodation space.

5. A lock according to claim 4 wherein:

the connecting wall includes:

a first connection wall continuously extending from the barrier wall to the main body part and connected to the main body part; and

a second connection wall perpendicularly connected to the blocking wall and the first connection wall and connected to the main body part,

the blocking wall and the first connecting wall constitute a side wall of the accommodating space, the second connecting wall constitutes a bottom wall of the accommodating space,

a boss portion protruding in an axial direction of the terminal through hole is formed on the main body portion, the terminal through hole penetrating the boss portion,

the first connecting wall continuously extends from the blocking wall to the boss and is connected to the boss.

6. A lock according to claim 5 wherein:

a side opening is formed on the blocking wall; and is

And a bottom opening allowing the output terminal on the circuit board or the lead frame of the charging seat to pass through is formed on the second connecting wall.

7. A lock according to claim 2 wherein:

before the locking piece moves from the pre-locking position to the final locking position, the blocking wall is positioned on a matching path of the connector matched with the charging seat so as to prevent the connector from being connected with the charging seat in a plugging manner.

8. A lock according to claim 1 wherein:

a positioning flange is formed on the hole wall of the terminal through hole;

when the locking member is in the final locking position, a locating flange on a bore wall of the terminal through-bore engages a radial flange on the charging terminal to axially lock the charging terminal;

when the locking member is in the pre-lock position, the locating flange on the aperture wall of the terminal through-hole disengages the radial flange on the charging terminal to allow axial movement of the charging terminal.

9. A lock in accordance with claim 1 further comprising:

a locking part which is arranged on the base plate,

the locking portion includes:

a resilient cantilever having one end connected to the body portion; and

a latch protrusion protrudingly formed on a free end of the elastic cantilever,

the latch protrusion is adapted to engage with a counterpart latch portion formed on an inner wall of a case of the charging stand to hold the locking member at the final locking position.

10. A lock according to any one of claims 1-9, characterized in that:

the blocking part is also provided with a blocking surface;

when the locking piece is located at the pre-locking position, the blocking surface is located at a position interfering with a connector to be inserted into a connector interface of the charging seat so as to block the connector from being inserted into the connector interface;

when the locking piece is located at the final locking position, the blocking surface is located at a position which does not interfere with a connector to be inserted into a connector interface of the charging seat so as to allow the connector to be inserted into the connector interface.

11. A lock according to claim 10 wherein:

when the locking piece is located at any position between the pre-locking position and the final locking position, the blocking surface is located at a position interfering with a connector to be inserted into a connector interface of the charging seat so as to block the connector from being inserted into the connector interface.

12. A lock according to claim 10 wherein:

the blocking portion comprises a blocking wall perpendicular to the unlocking direction, the locking face is the side face, facing the main body portion, of the blocking wall in the unlocking direction, and the blocking face is the end face of the blocking wall.

13. A lock according to claim 12 wherein:

the locking surface is parallel to the axial direction of the terminal through hole, and the blocking surface is perpendicular to the axial direction of the terminal through hole.

14. A lock according to claim 10 wherein: the locking member is a unitary piece.

15. A charging stand, comprising:

a housing;

a lock according to any one of claims 1-14 movably mounted in the housing between a prelock position and a final lock position;

a circuit board or lead frame fixedly mounted in the housing and having output terminals;

an end cap mounted on a port of the housing.

16. The charging cradle according to claim 15, wherein:

a connection port is formed on the end cap, and the output terminal extends into the connection port to form a connector interface suitable for being matched with a connector together with the connection port.

17. The charging cradle of claim 15, further comprising:

a charging terminal provided in the housing; and

and the signal terminals are arranged in the shell and are electrically connected with the corresponding output terminals on the circuit board or the lead frame.

18. The charging dock of claim 15, further comprising:

a temperature sensor mounted on the circuit board for detecting a temperature of the charging terminal; and

a thermal pad disposed on the circuit board for transferring heat on the charging terminal to the temperature sensor,

the temperature sensor is electrically connected with a corresponding output terminal on the circuit board or the lead frame.

19. The charging dock of claim 16, wherein:

the peripheral wall of the connection port of the end cap projects from the top wall of the end cap, and an engagement projection adapted to be brought into resilient snap-engagement with a catch piece provided on the housing of the connector is formed on the outer wall surface of the peripheral wall of the connection port.

20. A charging dock assembly, comprising:

the charging dock of any one of claims 15-19; and

a connector inserted into the connector interface of the charging stand to be electrically connected with the output terminal,

the connector includes:

a housing;

a terminal holding body provided in the housing;

a connection terminal provided in the terminal holder for mating with the output terminal; and

a locking piece provided on an outer side of the housing for locking the housing to a peripheral wall of the connection port of the end cap.

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