Charging seat

By designing a detachable AC and DC charging module structure, the problems of existing charging dock modules not being able to be replaced individually and heat control are solved, enabling individual module replacement and safe and efficient charging.

CN223986761UActive Publication Date: 2026-03-10TYCO ELECTRONICS TECHNOLOGY (SIP) CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

In existing charging docks, the AC charging module and DC charging module are integrated into the same housing, which cannot be replaced separately. This results in inconvenience and high cost. Furthermore, the heat is difficult to control during high-current charging, posing a safety hazard.

Method used

The design features detachable AC and DC charging modules, each secured by a different housing and mounting bracket. A temperature detection module is included to control heat. The modules can be replaced individually and secured with clips and screws.

Benefits of technology

It enables the separate replacement of AC and DC charging modules, simplifies the structure, reduces costs, and effectively controls heat through a temperature detection module, thereby improving safety and assembly efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a charging seat, comprising an installation support used for being fixed on a vehicle body; the alternating current charging module comprises a first shell and an alternating current power terminal arranged in the first shell; and a DC charging module including a second housing and a DC power terminal disposed in the second housing, the first housing being detachably assembled to the mounting bracket, and the second housing being detachably assembled to the first housing and / or the mounting bracket. According to the utility model, the direct current charging module and the alternating current charging module of the charging seat can be independently replaced, the use is very convenient, and the cost can be reduced. Besides, in some embodiments of the utility model, the detection module of the charging seat is simple in structure and small in size, and can be conveniently inserted into the shell of the charging seat, so that the structure of the charging seat is simplified, the number of parts of the charging seat is reduced, the assembly efficiency of the charging seat is improved, and the assembly difficulty of the charging seat and the manufacturing cost of the charging seat are reduced.
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Description

Technical Field

[0001] This utility model relates to a charging stand, and more particularly to a charging stand that has both AC charging and DC charging functions. Background Technology

[0002] In existing technologies, to charge the battery packs of new energy electric vehicles, a charging socket suitable for mates with a charging gun needs to be installed on the vehicle. In existing technologies, a charging socket with both AC and DC charging functions typically includes a mounting bracket, a housing, AC power terminals, and DC power terminals. The mounting bracket is used to fix it to the vehicle body, for example, to a sheet metal part of the vehicle body. The housing is fixed to the mounting bracket. A first terminal hole for inserting the AC power terminals and a second terminal hole for inserting the DC power terminals are formed in the housing. In existing technologies, because the AC charging module and the DC charging module are integrated into the same housing, the DC charging module and the AC charging module cannot be replaced separately; both must be replaced simultaneously. This leads to inconvenience and high cost.

[0003] In existing technologies, increasing charging speed requires increasing the charging current, currently reaching 600A and potentially even 1000A in the future. When a large current flows through the power terminals inside the charging dock, it generates significant heat, causing a rapid rise in the temperature of the power terminals. If this temperature rise is not controlled in time, it can lead to safety accidents, such as burning out the charging dock or other electrical equipment. Currently, to control the temperature rise of the power terminals, a lead frame is typically installed in the charging dock housing, with a terminal temperature detection module integrated on the lead frame. However, in existing technologies, the lead frame is bulky and needs to be pre-installed in the charging dock housing, making it inconvenient to use. Furthermore, to facilitate the installation of the lead frame, the charging dock housing requires a split design. Existing charging dock housings typically consist of a main body and a rear cover assembled to the rear port of the main body, resulting in a complex structure and high cost. Utility Model Content

[0004] The purpose of this utility model is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0005] According to one aspect of the present invention, a charging dock is provided. The charging dock includes: a mounting bracket for fixing to a vehicle body; an AC charging module including a first housing and AC power terminals disposed in the first housing; and a DC charging module including a second housing and DC power terminals disposed in the second housing, wherein the first housing is detachably assembled to the mounting bracket, and the second housing is detachably assembled to the first housing and / or the mounting bracket, such that the AC charging module and the DC charging module can be replaced separately.

[0006] According to an exemplary embodiment of the present invention, a mounting port is formed on the first housing, and the DC charging module has a DC mating part located at its front end. The DC mating part is inserted into the mounting port of the first housing to mate with the DC module of the charging gun inserted into the mounting port; the front end of the DC power terminal is located in the DC mating part for mating with the mating DC power terminal of the charging gun.

[0007] According to another exemplary embodiment of the present invention, the second housing has an end cap portion adapted to be fitted onto the peripheral wall of the rear end of the mounting port of the first housing, and the end cap portion of the second housing is fixed to the peripheral wall of the rear end of the mounting port of the first housing in a snap-fit ​​manner.

[0008] According to another exemplary embodiment of the present invention, a plurality of protrusions are formed on the outer side of the peripheral wall at the rear end of the mounting port of the first housing, which are spaced apart in the circumferential direction of the mounting port, and a plurality of slots are formed on the end cap portion of the second housing, which respectively engage with the plurality of protrusions.

[0009] According to another exemplary embodiment of the present invention, the AC charging module has an AC mating part located above the mounting port, the AC mating part being used to mate with the AC module of the charging gun; the front end of the AC power terminal is located in the AC mating part and is used to mate with the mating AC power terminal of the charging gun.

[0010] According to another exemplary embodiment of the present invention, a plurality of first connecting ears are formed on the outer side of the upper part of the first housing, and a plurality of first connecting posts corresponding to the plurality of first connecting ears are formed on the mounting bracket; the charging base further includes a plurality of first screws, which pass through the plurality of first connecting ears and are threaded into the plurality of first connecting posts to fix the first housing to the mounting bracket.

[0011] According to another exemplary embodiment of the present invention, a plurality of second connecting ears are formed on the outer side of the end cap portion of the second housing, and a plurality of second connecting posts corresponding to the plurality of second connecting ears are formed on the mounting bracket; the charging base further includes a plurality of second screws, which pass through the plurality of second connecting ears and are threaded into the plurality of second connecting posts to fix the second housing to the mounting bracket.

[0012] According to another exemplary embodiment of the present invention, a plurality of first terminal holes and a first slot communicating with the plurality of first terminal holes are formed in the first housing. The AC charging module includes a plurality of AC power terminals respectively inserted into the plurality of first terminal holes and a first detection module inserted into the first slot. The first detection module is used to detect the temperature of the plurality of AC power terminals.

[0013] According to another exemplary embodiment of the present invention, the first detection module includes: a first lead frame, including a plurality of first conductive leads and a first insulating frame injection molded onto the plurality of first conductive leads; a plurality of first thermal pads, mounted on the first insulating frame, for respectively making thermal contact with the plurality of AC power terminals; and a plurality of first temperature sensors, respectively disposed in the plurality of first thermal pads, for respectively detecting the temperature of the plurality of AC power terminals, wherein each of the plurality of first temperature sensors is electrically connected to two corresponding first conductive leads among the plurality of first conductive leads.

[0014] According to another exemplary embodiment of the present invention, the first insulating frame has a plurality of first locking portions for locking the plurality of AC power terminals respectively in the plurality of first terminal holes, and the first detection module is movable relative to the first housing between a pre-lock position and a final lock position; when the first detection module is in the pre-lock position, the first locking portion separates from the first step portion of the AC power terminal to allow insertion and removal of the AC power terminal; when the first detection module is moved to the final lock position, the first locking portion abuts against the first step portion of the AC power terminal to lock the AC power terminal in the first terminal hole.

[0015] According to another exemplary embodiment of the present invention, when the first detection module is in the pre-lock position, the first thermal pad does not contact the AC power terminal to prevent the first thermal pad from being worn by the AC power terminal when the AC power terminal is inserted or removed; when the first detection module is moved to the final lock position, the first thermal pad is interference-fitted with the AC power terminal to make reliable thermal contact with the AC power terminal.

[0016] According to another exemplary embodiment of the present invention, a signal terminal socket is further formed in the first housing, and the AC charging module further includes a signal terminal inserted into the signal terminal socket of the first housing. The first detection module is also used to detect the electrical signal of the signal terminal. When the first detection module is moved to the final locking position, the signal terminal makes electrical contact with the corresponding first conductive lead in the first detection module and is locked in the signal terminal socket by the first insulating frame.

[0017] According to another exemplary embodiment of the present invention, the first insulating frame has a first support portion adapted to be inserted into a first slot of the first housing and a first interface portion adapted to be positioned outside the first housing, the first thermal pad is mounted on the first support portion, and the external pin of the first conductive lead extends into the first interface portion to be electrically connected to the first connector inserted into the first interface portion.

[0018] According to another exemplary embodiment of the present invention, the first insulating frame further has a first cover plate portion for sealing the opening of the first slot and a plurality of first buckles connected to the outer side of the first cover plate portion. A first slot is formed on the first buckle, and a plurality of first protrusions corresponding to the plurality of first buckles are formed on the outer side of the peripheral wall of the opening of the first slot. When the first detection module is moved to the final locking position, the first protrusion engages with the first slot of the first buckle to hold the first detection module in the final locking position.

[0019] According to another exemplary embodiment of the present invention, a first upper protrusion and a first lower protrusion are formed on the outer side of the first interface portion, and a first elastic buckle is formed on the outer side of the first housing. A first upper slot and a first lower slot are formed on the first elastic buckle. When the first detection module is in the pre-locked position, the first lower protrusion engages with the first upper slot of the first elastic buckle to hold the first detection module in the pre-locked position. When the first detection module is moved to the final locked position, the first upper protrusion and the first lower protrusion engage with the first upper slot and the first lower slot of the first elastic buckle, respectively, to hold the first detection module in the final locked position.

[0020] According to another exemplary embodiment of the present invention, a plurality of second terminal holes and a second slot communicating with the plurality of second terminal holes are formed in the second housing. The DC charging module includes a plurality of DC power terminals respectively inserted into the plurality of second terminal holes and a second detection module inserted into the second slot. The second detection module is used to detect the temperature of the plurality of DC power terminals.

[0021] According to another exemplary embodiment of the present invention, the second detection module includes: a second lead frame including a plurality of second conductive leads and a second insulating frame injection molded onto the plurality of second conductive leads; a plurality of second thermal pads mounted on the second insulating frame for thermal contact with the plurality of DC power terminals respectively; and a plurality of second temperature sensors respectively disposed in the plurality of second thermal pads for detecting the temperature of the plurality of DC power terminals respectively, wherein each of the plurality of second temperature sensors is electrically connected to two corresponding second conductive leads of the plurality of second conductive leads respectively.

[0022] According to another exemplary embodiment of the present invention, the second insulating frame has a plurality of second locking portions for locking the plurality of DC power terminals respectively in the plurality of second terminal holes, and the second detection module is movable relative to the second housing between a pre-lock position and a final lock position; when the second detection module is in the pre-lock position, the second locking portions separate from the second step portion of the DC power terminal to allow insertion and removal of the DC power terminal; when the second detection module is moved to the final lock position, the second locking portions abut against the second step portion of the DC power terminal to lock the DC power terminal in the second terminal hole.

[0023] According to another exemplary embodiment of the present invention, when the second detection module is in the pre-lock position, the second thermal pad does not contact the DC power terminal to prevent the second thermal pad from being worn by the DC power terminal when the DC power terminal is inserted or removed; when the second detection module is moved to the final lock position, the second thermal pad is interference-fitted with the DC power terminal to make reliable thermal contact with the DC power terminal.

[0024] According to another exemplary embodiment of the present invention, the second insulating frame has a second support portion adapted to be inserted into a second slot in the second housing and a second interface portion adapted to be positioned outside the second housing, the second thermal pad is mounted on the second support portion, and the external pin of the second conductive lead extends into the second interface portion for electrical connection with the second connector inserted into the second interface portion.

[0025] According to another exemplary embodiment of the present invention, the second insulating frame further has a second cover plate portion for sealing the opening of the second slot and a plurality of second buckles connected to the outer side of the second cover plate portion. A second slot is formed on the second buckle, and a plurality of second protrusions corresponding to the plurality of second buckles are formed on the outer side of the peripheral wall of the opening of the second slot. When the second detection module is moved to the final lock position, the second protrusion engages with the second slot of the second buckle to hold the second detection module in the final lock position.

[0026] According to another exemplary embodiment of the present invention, a second upper protrusion and a second lower protrusion are formed on the outer side of the second interface portion, and a second elastic buckle is formed on the outer side of the second housing. A second upper slot and a second lower slot are formed on the second elastic buckle. When the second detection module is in the pre-locked position, the second lower protrusion engages with the second upper slot of the second elastic buckle to hold the second detection module in the pre-locked position. When the second detection module is moved to the final locked position, the second upper protrusion and the second lower protrusion engage with the second upper slot and the second lower slot of the second elastic buckle, respectively, to hold the second detection module in the final locked position.

[0027] In the foregoing exemplary embodiments of the present invention, the DC charging module and AC charging module of the charging dock can be replaced separately, which is very convenient to use and can reduce costs.

[0028] In some of the exemplary embodiments of the present invention, the detection module of the charging dock has a simple structure, small size, and can be easily inserted into the housing of the charging dock. Therefore, the present invention simplifies the structure of the charging dock, reduces the number of parts, improves the assembly efficiency of the charging dock, and reduces the assembly difficulty and manufacturing cost of the charging dock.

[0029] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0030] Figure 1 A perspective view of a charging dock according to an exemplary embodiment of the present invention is shown;

[0031] Figure 2 This diagram shows an exploded view of a charging dock according to an exemplary embodiment of the present invention.

[0032] Figure 3This diagram shows an assembly schematic of the DC charging module and AC charging module of a charging dock according to an exemplary embodiment of the present invention.

[0033] Figure 4 An exploded view of the AC charging module of a charging dock according to an exemplary embodiment of the present invention is shown.

[0034] Figure 5 A perspective view of a first detection module of an AC charging module according to an exemplary embodiment of the present invention is shown.

[0035] Figure 6 An exploded view of the first detection module of an AC charging module according to an exemplary embodiment of the present invention is shown.

[0036] Figure 7 Showing an exploded view of the AC charging module of a charging dock according to an exemplary embodiment of the present invention;

[0037] Figure 8 A perspective view of an AC charging module of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the first detection module is in a pre-locked position;

[0038] Figure 9 A perspective view of a first detection module and an AC power terminal of an AC charging module according to an exemplary embodiment of the present invention is shown, wherein the first detection module is in a pre-locked position;

[0039] Figure 10 This shows a cross-sectional view of an AC charging module of a charging dock according to an exemplary embodiment of the present invention, wherein the first detection module is in a pre-locked position;

[0040] Figure 11 A perspective view of an AC charging module of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the first detection module is in the final locked position;

[0041] Figure 12 This is a perspective view of the first detection module and AC power terminal of an AC charging module according to an exemplary embodiment of the present invention, viewed from the rear, wherein the first detection module is in the final locked position;

[0042] Figure 13 This is a perspective view of the first detection module and AC power terminal of an AC charging module according to an exemplary embodiment of the present invention, viewed from the front, wherein the first detection module is in the final locked position;

[0043] Figure 14This shows a cross-sectional view of an AC charging module of a charging dock according to an exemplary embodiment of the present invention, wherein the first detection module is in the final locked position.

[0044] Figure 15 An exploded view of the DC charging module of a charging dock according to an exemplary embodiment of the present invention is shown.

[0045] Figure 16 A perspective view of a second detection module of a DC charging module according to an exemplary embodiment of the present invention is shown.

[0046] Figure 17 An exploded view of the second detection module of a DC charging module according to an exemplary embodiment of the present invention is shown.

[0047] Figure 18 Showing an exploded view of the DC charging module of a charging dock according to an exemplary embodiment of the present invention;

[0048] Figure 19 A perspective view of a DC charging module of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the second detection module is in a pre-locked position;

[0049] Figure 20 A perspective view of a second detection module and a DC power terminal of a DC charging module according to an exemplary embodiment of the present invention is shown, wherein the second detection module is in a pre-locked position;

[0050] Figure 21 This shows a cross-sectional view of a DC charging module of a charging dock according to an exemplary embodiment of the present invention, wherein the second detection module is in a pre-locked position;

[0051] Figure 22 A perspective view of a DC charging module of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the second detection module is in the final locked position;

[0052] Figure 23 A perspective view of a second detection module and a DC power terminal of a DC charging module according to an exemplary embodiment of the present invention is shown, wherein the second detection module is in the final locked position;

[0053] Figure 24 This shows a cross-sectional view of a DC charging module of a charging dock according to an exemplary embodiment of the present invention, wherein the second detection module is in the final locked position. Detailed Implementation

[0054] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall inventive concept of this utility model and should not be construed as a limitation thereof.

[0055] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0056] According to a general technical concept of this utility model, a charging dock is provided. The charging dock includes: a mounting bracket for fixing to a vehicle body; an AC charging module including a first housing and AC power terminals disposed in the first housing; and a DC charging module including a second housing and DC power terminals disposed in the second housing, wherein the first housing is detachably assembled to the mounting bracket, and the second housing is detachably assembled to the first housing and / or the mounting bracket, so that the AC charging module and the DC charging module can be replaced separately.

[0057] According to another overall technical concept of this utility model, an AC charging module is provided. The AC charging module includes: a first housing having a plurality of first terminal holes and a first slot communicating with the plurality of first terminal holes; a plurality of AC power terminals respectively inserted into the plurality of first terminal holes; and a first detection module inserted into the first slot and movable relative to the first housing between a pre-locked position and a final-locked position. The first detection module includes: a first lead frame including a plurality of first conductive leads and a first insulating frame injection-molded onto the plurality of first conductive leads; a plurality of first thermally conductive pads mounted on the first insulating frame for thermal contact with the plurality of AC power terminals respectively; and a plurality of first temperature sensors respectively disposed in the plurality of first thermally conductive pads and electrically connected to the corresponding first conductive leads for detecting the temperature of the plurality of AC power terminals. When the first detection module is in the pre-lock position, the first thermal pad is not in contact with the AC power terminal, and the first insulating frame is in a position that does not interfere with the insertion and removal of the AC power terminal, so as to allow the insertion and removal of the AC power terminal; when the first detection module is moved to the final lock position, the first thermal pad is in thermal contact with the AC power terminal, and the first insulating frame abuts against the AC power terminal to lock the AC power terminal in the first terminal hole.

[0058] According to another overall technical concept of this utility model, a DC charging module is provided. The DC charging module includes: a second housing having a plurality of second terminal holes and a second slot communicating with the plurality of second terminal holes; a plurality of DC power terminals respectively inserted into the plurality of second terminal holes; and a second detection module inserted into the second slot and movable relative to the second housing between a pre-locked position and a final-locked position. The second detection module includes: a second lead frame including a plurality of second conductive leads and a second insulating frame injection-molded onto the plurality of second conductive leads; a plurality of second thermal pads mounted on the second insulating frame for thermal contact with the plurality of DC power terminals respectively; and a plurality of second temperature sensors respectively disposed in the plurality of second thermal pads and electrically connected to the corresponding second conductive leads for detecting the temperature of the plurality of DC power terminals. When the second detection module is in the pre-lock position, the second thermal pad is not in contact with the DC power terminal, and the second insulating frame is in a position that does not interfere with the insertion and removal of the DC power terminal, so as to allow the insertion and removal of the DC power terminal; when the second detection module is moved to the final lock position, the second thermal pad is in thermal contact with the DC power terminal, and the second insulating frame abuts against the DC power terminal to lock the DC power terminal in the second terminal hole.

[0059] According to another overall technical concept of this utility model, a charging dock is provided. The charging dock includes: a mounting bracket for fixing to a vehicle body; the aforementioned AC charging module; and the aforementioned DC charging module. A first housing of the AC charging module is detachably assembled to the mounting bracket, and a second housing of the DC charging module is detachably assembled to the first housing and / or the mounting bracket, so that the AC charging module and the DC charging module can be replaced separately.

[0060] According to another overall technical concept of this utility model, a charging module is provided. The charging module includes: a housing having a plurality of terminal holes and slots communicating with the plurality of terminal holes; a plurality of power terminals respectively inserted into the plurality of terminal holes; and a detection module inserted into the slots and movable relative to the housing between a pre-locked position and a final-locked position. The detection module includes: a lead frame including a plurality of conductive leads and an insulating frame injection-molded onto the plurality of conductive leads; a plurality of thermally conductive pads mounted on the insulating frame for thermal contact with the plurality of power terminals respectively; and a plurality of temperature sensors respectively disposed in the plurality of thermally conductive pads and electrically connected to corresponding conductive leads for detecting the temperature of the plurality of power terminals. When the detection module is in the pre-lock position, the thermal pad is not in contact with the power terminal, and the insulating frame is in a position that does not interfere with the insertion and removal of the power terminal, so as to allow the insertion and removal of the power terminal; when the detection module is moved to the final lock position, the thermal pad is in thermal contact with the power terminal, and the insulating frame abuts against the power terminal to lock the power terminal in the terminal hole.

[0061] According to another general technical concept of this utility model, a charging dock is provided. The charging dock includes: a mounting bracket for fixing to a vehicle body; and the aforementioned charging module. The housing is detachably assembled onto the mounting bracket.

[0062] Figure 1 A perspective view of a charging dock according to an exemplary embodiment of the present invention is shown; Figure 2 This diagram shows an exploded view of a charging dock according to an exemplary embodiment of the present invention. Figure 3 This diagram shows an assembly schematic of a DC charging module 2 and an AC charging module 1 of a charging dock according to an exemplary embodiment of the present invention. Figure 4 An exploded view of the AC charging module 1 of a charging dock according to an exemplary embodiment of the present invention is shown. Figure 5 A perspective view of a first detection module 100 of an AC charging module 1 according to an exemplary embodiment of the present invention is shown. Figure 6 An exploded view of the first detection module 100 of the AC charging module 1 according to an exemplary embodiment of the present invention is shown. Figure 7 Showing an exploded view of the AC charging module 1 of a charging dock according to an exemplary embodiment of the present invention; Figure 8 A perspective view of an AC charging module 1 of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the first detection module 100 is in a pre-locked position; Figure 9A perspective view of a first detection module 100 and an AC power terminal 11 of an AC charging module 1 according to an exemplary embodiment of the present invention is shown, wherein the first detection module 100 is in a pre-locked position; Figure 10 This shows a cross-sectional view of an AC charging module 1 of a charging dock according to an exemplary embodiment of the present invention, wherein the first detection module 100 is in a pre-locked position. Figure 11 A perspective view of an AC charging module 1 of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the first detection module 100 is in the final locked position; Figure 12 This is a perspective view of the first detection module 100 and the AC power terminal 11 of the AC charging module 1 according to an exemplary embodiment of the present invention, viewed from the rear, wherein the first detection module 100 is in the final locked position. Figure 13 This is a perspective view of the first detection module 100 and the AC power terminal 11 of the AC charging module 1 according to an exemplary embodiment of the present invention, with the first detection module 100 in the final locked position. Figure 14 This shows a cross-sectional view of an AC charging module 1 of a charging dock according to an exemplary embodiment of the present invention, wherein the first detection module 100 is in the final locked position. Figure 15 An exploded view of the DC charging module 2 of a charging dock according to an exemplary embodiment of the present invention is shown. Figure 16 A perspective view of the second detection module 200 of the DC charging module 2 according to an exemplary embodiment of the present invention is shown. Figure 17 An exploded view of the second detection module 200 of the DC charging module 2 according to an exemplary embodiment of the present invention is shown. Figure 18 Showing an exploded view of the DC charging module 2 of a charging dock according to an exemplary embodiment of the present invention; Figure 19 A perspective view of a DC charging module 2 of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the second detection module 200 is in a pre-locked position; Figure 20 A perspective view of a second detection module 200 and a DC power terminal 21 of a DC charging module 2 according to an exemplary embodiment of the present invention is shown, wherein the second detection module 200 is in a pre-locked position; Figure 21 A cross-sectional view of a DC charging module 2 of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the second detection module 200 is in a pre-locked position; Figure 22 A perspective view of a DC charging module 2 of a charging dock according to an exemplary embodiment of the present invention is shown, wherein the second detection module 200 is in the final locked position; Figure 23A perspective view of a second detection module 200 and a DC power terminal 21 of a DC charging module 2 according to an exemplary embodiment of the present invention is shown, wherein the second detection module 200 is in the final locked position; Figure 24 This shows a cross-sectional view of a DC charging module 2 of a charging dock according to an exemplary embodiment of the present invention, wherein the second detection module 200 is in the final locked position.

[0063] like Figures 1 to 24 As shown, in an exemplary embodiment of this utility model, a charging dock is disclosed. The charging dock includes: a mounting bracket 3, an AC charging module 1, and a DC charging module 2. The mounting bracket 3 is used to fix to a vehicle body, for example, to a body sheet metal part. The AC charging module 1 includes a first housing 10 and AC power terminals 11 disposed in the first housing 10. The DC charging module 2 includes a second housing 20 and DC power terminals 21 disposed in the second housing 20. The first housing 10 is detachably assembled to the mounting bracket 3. The second housing 20 is detachably assembled to the first housing 10 and / or the mounting bracket 3, so that the AC charging module 1 and the DC charging module 2 can be replaced separately.

[0064] like Figures 1 to 24 As shown in the illustrated embodiment, a mounting port 103 is formed on the first housing 10. The DC charging module 2 has a DC mating portion 2a located at its front end. This DC mating portion 2a is inserted into the mounting port 103 of the first housing 10 to mate with the DC module (not shown) of the charging gun (not shown) inserted into the mounting port 103. The front end of the DC power terminal 21 is located in the DC mating portion 2a and is used to mate with the mating DC power terminal (not shown) of the charging gun.

[0065] like Figures 1 to 24 As shown in the illustrated embodiment, the second housing 20 has an end cap 23 adapted to be fitted onto the peripheral wall of the rear end of the mounting port 103 of the first housing 10, and the end cap 23 of the second housing 20 is fixed to the peripheral wall of the rear end of the mounting port 103 of the first housing 10 by a snap-fit ​​method.

[0066] like Figures 1 to 24 As shown in the illustrated embodiment, a plurality of protrusions 13a are formed on the outer side of the peripheral wall at the rear end of the mounting port 103 of the first housing 10, and a plurality of slots 23a are formed on the end cap portion 23 of the second housing 20, which respectively engage with the plurality of protrusions 13a.

[0067] like Figures 1 to 24As shown in the illustrated embodiment, the AC charging module 1 has an AC mating section 1a located above the mounting port 103, which is used to mate with the AC module (not shown) of the charging gun. The front end of the AC power terminal 11 is located in the AC mating section 1a and is used to mate with the mating AC power terminal (not shown) of the charging gun.

[0068] like Figures 1 to 24 As shown in the illustrated embodiment, a plurality of first connecting ears 131 are formed on the outer side of the upper part of the first housing 10, and a plurality of first connecting posts 31 corresponding to the plurality of first connecting ears 131 are formed on the mounting bracket 3. The charging base also includes a plurality of first screws 132, which pass through the plurality of first connecting ears 131 and are threaded into the plurality of first connecting posts 31 to fix the first housing 10 to the mounting bracket 3.

[0069] like Figures 1 to 24 As shown in the illustrated embodiment, a plurality of second connecting ears 231 are formed on the outer side of the end cap portion 23 of the second housing 20, and a plurality of second connecting posts 32 corresponding to the plurality of second connecting ears 231 are formed on the mounting bracket 3. The charging base also includes a plurality of second screws 232, which pass through the plurality of second connecting ears 231 and are threaded into the plurality of second connecting posts 32 to fix the second housing 20 to the mounting bracket 3.

[0070] like Figures 1 to 24 As shown in the illustrated embodiment, a plurality of first terminal holes 101 and a first slot 12 communicating with the plurality of first terminal holes 101 are formed in the first housing 10. The AC charging module 1 includes a plurality of AC power terminals 11 respectively inserted into the plurality of first terminal holes 101 and a first detection module 100 inserted into the first slot 12. The first detection module 100 is used to detect the temperature of the plurality of AC power terminals 11.

[0071] like Figures 1 to 24 As shown in the illustrated embodiment, the first detection module 100 includes: a first lead frame 15, a plurality of first thermally conductive pads 14, and a plurality of first temperature sensors 18. The first lead frame 15 includes a plurality of first conductive leads 156 and a first insulating frame 150 injection-molded onto the plurality of first conductive leads 156. The plurality of first thermally conductive pads 14 are mounted on the first insulating frame 150 for thermal contact with a plurality of AC power terminals 11, respectively. The plurality of first temperature sensors 18 are respectively disposed in the plurality of first thermally conductive pads 14 for detecting the temperature of the plurality of AC power terminals 11, respectively. Each of the plurality of first temperature sensors 18 is electrically connected to two corresponding first conductive leads 156 of the plurality of first conductive leads 156.

[0072] like Figures 1 to 24As shown in the illustrated embodiment, the first insulating frame 150 has a plurality of first locking portions 155 for locking a plurality of AC power terminals 11 into a plurality of first terminal holes 101, and the first detection module 100 is movable relative to the first housing 10 between a pre-locked position and a final-locked position. When the first detection module 100 is in the pre-locked position, the first locking portions 155 are disengaged from the first stepped portions 11a of the AC power terminals 11 to allow insertion and removal of the AC power terminals 11. When the first detection module 100 is moved to the final-locked position, the first locking portions 155 abut against the first stepped portions 11a of the AC power terminals 11 to lock the AC power terminals 11 into the first terminal holes 101.

[0073] like Figures 1 to 24 As shown in the illustrated embodiment, when the first detection module 100 is in the pre-lock position, the first thermal pad 14 does not contact the AC power terminal 11 to prevent the first thermal pad 14 from being worn by the AC power terminal 11 when it is plugged in or unplugged. When the first detection module 100 is moved to the final lock position, the first thermal pad 14 is press-fitted with the AC power terminal 11 to ensure reliable thermal contact with the AC power terminal 11.

[0074] like Figures 1 to 24 As shown in the illustrated embodiment, a signal terminal socket 104 is also formed in the first housing 10. The AC charging module 1 further includes a signal terminal 19 inserted into the signal terminal socket 104 of the first housing 10. The first detection module 100 is also used to detect the electrical signal of the signal terminal 19. When the first detection module 100 is moved to the final locked position, the signal terminal 19 makes electrical contact with the corresponding first conductive lead 156 in the first detection module 100 and is locked in the signal terminal socket 104 by the first insulating frame 150.

[0075] like Figures 1 to 24 As shown, in the illustrated embodiment, the first insulating frame 150 has a first support portion 151 adapted to be inserted into a first slot 12 of the first housing 10 and a first interface portion 154 adapted to be positioned outside the first housing 10. A first thermal pad 14 is mounted on the first support portion 151, and an external pin 1561 of the first conductive lead 156 extends into the first interface portion 154 for electrical connection with a first connector (not shown) inserted into the first interface portion 154.

[0076] like Figures 1 to 24As shown in the illustrated embodiment, the first insulating frame 150 further includes a first cover portion 152 for sealing the opening of the first slot 12 and a plurality of first latches 153 connected to the outer side of the first cover portion 152. A first slot 1531 is formed on the first latch 153, and a plurality of first protrusions 17 corresponding to the plurality of first latches 153 are formed on the outer side of the peripheral wall of the opening of the first slot 12. When the first detection module 100 is moved to the final locked position, the first protrusions 17 engage with the first slots 1531 of the first latches 153 to hold the first detection module 100 in the final locked position.

[0077] like Figures 1 to 24 As shown in the illustrated embodiment, a first upper protrusion 1541 and a first lower protrusion 1542 are formed on the outer side of the first interface portion 154, and a first elastic buckle 16 is formed on the outer side of the first housing 10. A first upper slot 161 and a first lower slot 162 are formed on the first elastic buckle 16. When the first detection module 100 is in the pre-locked position, the first lower protrusion 1542 engages with the first upper slot 161 of the first elastic buckle 16 to hold the first detection module 100 in the pre-locked position. When the first detection module 100 is moved to the final locked position, the first upper protrusion 1541 and the first lower protrusion 1542 engage with the first upper slot 161 and the first lower slot 162 of the first elastic buckle 16, respectively, to hold the first detection module 100 in the final locked position.

[0078] like Figures 1 to 24 As shown in the illustrated embodiment, a plurality of second terminal holes 201 and a second slot 22 communicating with the plurality of second terminal holes 201 are formed in the second housing 20. The DC charging module 2 includes a plurality of DC power terminals 21 respectively inserted into the plurality of second terminal holes 201 and a second detection module 200 inserted into the second slot 22. The second detection module 200 is used to detect the temperature of the plurality of DC power terminals 21.

[0079] like Figures 1 to 24 As shown in the illustrated embodiment, the second detection module 200 includes: a second lead frame 25, a plurality of second thermal pads 24, and a plurality of second temperature sensors 28. The second lead frame 25 includes a plurality of second conductive leads 256 and a second insulating frame 250 injection-molded onto the plurality of second conductive leads 256. The plurality of second thermal pads 24 are mounted on the second insulating frame 250 for thermal contact with a plurality of DC power terminals 21, respectively. The plurality of second temperature sensors 28 are respectively disposed in the plurality of second thermal pads 24 for detecting the temperature of the plurality of DC power terminals 21, respectively. Each of the plurality of second temperature sensors 28 is electrically connected to two corresponding second conductive leads 256 of the plurality of second conductive leads 256.

[0080] like Figures 1 to 24As shown in the illustrated embodiment, the second insulating frame 250 has a plurality of second locking portions 255 for locking a plurality of DC power terminals 21 into a plurality of second terminal holes 201, respectively. The second detection module 200 is movable relative to the second housing 20 between a pre-locked position and a final-locked position. When the second detection module 200 is in the pre-locked position, the second locking portions 255 are separated from the second step portion 21a of the DC power terminals 21 to allow insertion and removal of the DC power terminals 21. When the second detection module 200 is moved to the final-locked position, the second locking portions 255 abut against the second step portion 21a of the DC power terminals 21 to lock the DC power terminals 21 into the second terminal holes 201.

[0081] like Figures 1 to 24 As shown in the illustrated embodiment, when the second detection module 200 is in the pre-lock position, the second thermal pad 24 does not contact the DC power terminal 21 to prevent the second thermal pad 24 from being worn by the DC power terminal 21 when it is plugged in or unplugged. When the second detection module 200 is moved to the final lock position, the second thermal pad 24 is press-fitted with the DC power terminal 21 to ensure reliable thermal contact with the DC power terminal 21.

[0082] like Figures 1 to 24 As shown, in the illustrated embodiment, the second insulating frame 250 has a second support portion 251 adapted to be inserted into a second slot 22 of the second housing 20 and a second interface portion 254 adapted to be positioned outside the second housing 20. The second thermal pad 24 is mounted on the second support portion 251, and the external pin 2561 of the second conductive lead 256 extends into the second interface portion 254 to be electrically connected to a second connector (not shown) inserted into the second interface portion 254.

[0083] like Figures 1 to 24 As shown in the illustrated embodiment, the second insulating frame 250 further includes a second cover portion 252 for sealing the opening of the second slot 22 and a plurality of second latches 253 connected to the outer side of the second cover portion 252. Second slots 2531 are formed on the second latches 253, and a plurality of second protrusions 27 corresponding to the plurality of second latches 253 are formed on the outer side of the peripheral wall of the opening of the second slot 22. When the second detection module 200 is moved to the final locked position, the second protrusions 27 engage with the second slots 2531 of the second latches 253 to hold the second detection module 200 in the final locked position.

[0084] like Figures 1 to 24As shown in the illustrated embodiment, a second upper protrusion 2541 and a second lower protrusion 2542 are formed on the outer side of the second interface portion 254, and a second elastic buckle 26 is formed on the outer side of the second housing 20. A second upper slot 261 and a second lower slot 262 are formed on the second elastic buckle 26. When the second detection module 200 is in the pre-locked position, the second lower protrusion 2542 engages with the second upper slot 261 of the second elastic buckle 26 to hold the second detection module 200 in the pre-locked position. When the second detection module 200 is moved to the final locked position, the second upper protrusion 2541 and the second lower protrusion 2542 engage with the second upper slot 261 and the second lower slot 262 of the second elastic buckle 26, respectively, to hold the second detection module 200 in the final locked position.

[0085] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this utility model.

[0086] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0087] While some embodiments of the general concept of this utility model have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this utility model, the scope of which is defined by the claims and their equivalents.

[0088] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. A charging station, characterized in that, Comprising: a mounting bracket (3) for being fixed to a vehicle body; an alternating current charging module (1) comprising a first housing (10) and alternating current power terminals (11) arranged in the first housing (10); and a direct current charging module (2) comprising a second housing (20) and direct current power terminals (21) arranged in the second housing (20), the first housing (10) is detachably assembled to the mounting bracket (3), and the second housing (20) is detachably assembled to the first housing (10) and / or the mounting bracket (3), so that the alternating current charging module (1) and the direct current charging module (2) can be individually replaced, respectively.

2. The charging base according to claim 1, characterized in that: a mounting opening (103) is formed on the first housing (10), the direct current charging module (2) has a direct current mating portion (2a) at a front end thereof, the direct current mating portion (2a) is inserted into the mounting opening (103) of the first housing (10) to mate with direct current terminals of a charging gun inserted into the mounting opening (103); front ends of the direct current power terminals (21) are located in the direct current mating portion (2a) to mate with the mating direct current terminals of the charging gun.

3. The charging base according to claim 2, characterized in that: the second housing (20) has an end cover portion (23) adapted to be sleeved onto a peripheral wall of a rear end of the mounting opening (103) of the first housing (10), and the end cover portion (23) of the second housing (20) is fixed to the peripheral wall of the rear end of the mounting opening (103) of the first housing (10) in a snap-fit manner.

4. The charging base according to claim 3, characterized in that: a plurality of protrusions (13a) are formed on an outer side of the peripheral wall of the rear end of the mounting opening (103) of the first housing (10) and are spaced apart in a circumferential direction of the mounting opening (103), and a plurality of clamping grooves (23a) are formed on the end cover portion (23) of the second housing (20) and respectively engage with the plurality of protrusions (13a).

5. The charging base according to claim 2, characterized in that: the alternating current charging module (1) has an alternating current mating portion (1a) located above the mounting opening (103) and used to mate with an alternating current module of the charging gun; front ends of the alternating current power terminals (11) are located in the alternating current mating portion (1a) and used to mate with mating alternating current terminals of the charging gun.

6. The charging base according to claim 5, characterized in that: a plurality of first connecting lugs (131) are formed on an outer side of an upper portion of the first housing (10), and a plurality of first connecting columns (31) corresponding to the plurality of first connecting lugs (131) are formed on the mounting bracket (3). The charging base further comprises a plurality of first screws (132) respectively penetrating through the plurality of first connecting ears (131) and respectively threadedly connected into the plurality of first connecting columns (31) to fix the first shell (10) to the mounting bracket (3).

7. The charging base of claim 3, wherein: A plurality of second connecting ears (231) are formed on the outer side of the end cover portion (23) of the second shell (20), and a plurality of second connecting columns (32) corresponding to the plurality of second connecting ears (231) respectively are formed on the mounting bracket (3); The charging base further comprises a plurality of second screws (232) respectively penetrating through the plurality of second connecting ears (231) and respectively threadedly connected into the plurality of second connecting columns (32) to fix the second shell (20) to the mounting bracket (3).

8. The charging base of any one of claims 1-7, wherein: A plurality of first terminal holes (101) and a first insertion slot (12) in communication with the plurality of first terminal holes (101) are formed in the first shell (10), and the alternating current charging module (1) comprises a plurality of alternating current power terminals (11) respectively inserted into the plurality of first terminal holes (101) and a first detection module (100) inserted into the first insertion slot (12), the first detection module (100) being configured to detect the temperature of the plurality of alternating current power terminals (11).

9. The charging base of claim 8, wherein: The first detection module (100) comprises: a first lead frame (15) comprising a plurality of first conductive leads (156) and a first insulating frame (150) injection molded onto the plurality of first conductive leads (156); a plurality of first heat-conductive pads (14) mounted to the first insulating frame (150) and configured to be in thermal contact with the plurality of alternating current power terminals (11) respectively; a plurality of first temperature sensors (18) disposed in the plurality of first heat-conductive pads (14) respectively and configured to detect the temperature of the plurality of alternating current power terminals (11) respectively, each of the plurality of first temperature sensors (18) being electrically connected with corresponding two of the plurality of first conductive leads (156) respectively.

10. The charging base of claim 9, wherein: The first insulating frame (150) has a plurality of first locking portions (155) for locking the plurality of alternating current power terminals (11) in the plurality of first terminal holes (101) respectively, and the first detection module (100) is movable relative to the first shell (10) between a pre-locking position and a final-locking position; When the first detection module (100) is in the pre-locking position, the first locking portions (155) are separated from first step portions (11a) of the alternating current power terminals (11) to allow the alternating current power terminals (11) to be inserted and pulled out; When the first detection module (100) is moved to the final locking position, the first locking portion (155) abuts against the first step portion (11a) of the AC power terminal (11) to lock the AC power terminal (11) in the first terminal hole (101).

11. The charging base of claim 10, wherein: When the first detection module (100) is in the pre-locking position, the first heat-conductive pad (14) is not in contact with the AC power terminal (11) to prevent the first heat-conductive pad (14) from being abraded by the AC power terminal (11) when the AC power terminal (11) is plugged or unplugged; When the first detection module (100) is moved to the final locking position, the first heat-conductive pad (14) is in interference fit with the AC power terminal (11) to be in reliable thermal contact with the AC power terminal (11).

12. The charging base of claim 10, wherein: A signal terminal insertion hole (104) is further formed in the first housing (10), and the AC charging module (1) further comprises a signal terminal (19) inserted into the signal terminal insertion hole (104) of the first housing (10), and the first detection module (100) is further configured to detect an electrical signal of the signal terminal (19); When the first detection module (100) is moved to the final locking position, the signal terminal (19) is in electrical contact with a corresponding first conductive lead (156) in the first detection module (100) and is locked in the signal terminal insertion hole (104) by the first insulating frame (150).

13. The charging base of claim 10, wherein: The first insulating frame (150) has a first bracket portion (151) adapted to be inserted into the first slot (12) of the first housing (10) and a first interface portion (154) adapted to be positioned outside the first housing (10), the first heat-conductive pad (14) is mounted on the first bracket portion (151), and an outer connecting pin (1561) of the first conductive lead (156) extends into the first interface portion (154) to be electrically connected with a first connector inserted into the first interface portion (154).

14. The charging base of claim 13, wherein: The first insulating frame (150) further has a first cover plate portion (152) for covering an opening of the first slot (12) and a plurality of first buckles (153) connected to an outer side of the first cover plate portion (152), a first buckle slot (1531) is formed on each of the first buckles (153), and a plurality of first protrusions (17) corresponding to the plurality of first buckles (153) respectively are formed on an outer side of a peripheral wall of the opening of the first slot (12); When the first detection module (100) is moved to the final locking position, the first protrusions (17) are engaged with the first buckle slots (1531) of the first buckles (153) to retain the first detection module (100) in the final locking position.

15. The charging base of claim 13, wherein: a first upper protrusion (1541) and a first lower protrusion (1542) are formed on an outer side of the first interface portion (154), a first elastic buckle (16) is formed on an outer side of the first housing (10), and a first upper clamping groove (161) and a first lower clamping groove (162) are formed on the first elastic buckle (16); when the first detection module (100) is in the pre-lock position, the first lower protrusion (1542) is engaged with the first upper clamping groove (161) of the first elastic buckle (16) to retain the first detection module (100) in the pre-lock position; when the first detection module (100) is moved to the final lock position, the first upper protrusion (1541) and the first lower protrusion (1542) are engaged with the first upper clamping groove (161) and the first lower clamping groove (162) of the first elastic buckle (16), respectively, to retain the first detection module (100) in the final lock position.

16. The charging base of any one of claims 1-7, wherein: a plurality of second terminal holes (201) and a second insertion slot (22) in communication with the plurality of second terminal holes (201) are formed in the second housing (20), the DC charging module (2) includes a plurality of DC power terminals (21) respectively inserted into the plurality of second terminal holes (201) and a second detection module (200) inserted into the second insertion slot (22), and the second detection module (200) is configured to detect temperatures of the plurality of DC power terminals (21).

17. The charging base of claim 16, wherein: the second detection module (200) includes: a second lead frame (25) including a plurality of second conductive leads (256) and a second insulating frame (250) injection molded onto the plurality of second conductive leads (256); a plurality of second heat-conductive pads (24) mounted to the second insulating frame (250) and configured to be in thermal contact with the plurality of DC power terminals (21), respectively; a plurality of second temperature sensors (28) disposed in the plurality of second heat-conductive pads (24), respectively, and configured to detect temperatures of the plurality of DC power terminals (21), respectively, each of the plurality of second temperature sensors (28) being electrically connected to a corresponding two of the plurality of second conductive leads (256), respectively.

18. The charging base of claim 17, wherein: the second insulating frame (250) has a plurality of second locking portions (255) configured to lock the plurality of DC power terminals (21) in the plurality of second terminal holes (201), respectively, and the second detection module (200) is movable relative to the second housing (20) between a pre-lock position and a final lock position. When the second detection module (200) is in the pre-lock position, the second locking portion (255) is separated from the second step portion (21a) of the DC power terminal (21) to allow the DC power terminal (21) to be inserted or pulled out; When the second detection module (200) is moved to the final lock position, the second locking portion (255) abuts against the second step portion (21a) of the DC power terminal (21) to lock the DC power terminal (21) in the second terminal hole (201).

19. The charging base of claim 18, wherein: When the second detection module (200) is in the pre-lock position, the second heat-conducting pad (24) is not in contact with the DC power terminal (21) to prevent the second heat-conducting pad (24) from being abraded by the DC power terminal (21) when the DC power terminal (21) is inserted or pulled out; When the second detection module (200) is moved to the final lock position, the second heat-conducting pad (24) is in interference fit with the DC power terminal (21) to be in reliable thermal contact with the DC power terminal (21).

20. The charging base of claim 18, wherein: The second insulating frame (250) has a second bracket portion (251) adapted to be inserted into the second slot (22) of the second housing (20) and a second interface portion (254) adapted to be positioned outside the second housing (20), the second heat-conducting pad (24) is mounted to the second bracket portion (251), and the outer connecting pin (2561) of the second conductive lead (256) extends into the second interface portion (254) to be electrically connected with a second connector inserted into the second interface portion (254).

21. The charging base of claim 20, wherein: The second insulating frame (250) further has a second cover plate portion (252) for covering the opening of the second slot (22) and a plurality of second buckles (253) connected to the outer side of the second cover plate portion (252), the second buckles (253) are formed with second buckle slots (2531), and the outer side of the circumferential wall of the opening of the second slot (22) is formed with a plurality of second protrusions (27) corresponding to the plurality of second buckles (253) respectively; When the second detection module (200) is moved to the final lock position, the second protrusions (27) are engaged with the second buckle slots (2531) of the second buckles (253) to retain the second detection module (200) in the final lock position.

22. The charging base of claim 20, wherein: The outer side of the second interface portion (254) is formed with a second upper protrusion (2541) and a second lower protrusion (2542), and the outer side of the second housing (20) is formed with a second elastic buckle (26), the second elastic buckle (26) is formed with a second upper buckle slot (261) and a second lower buckle slot (262); When the second detection module (200) is in the pre-lock position, the second lower protrusion (2542) is engaged with the second upper clamping groove (261) of the second elastic buckle (26) to keep the second detection module (200) in the pre-lock position; When the second detection module (200) is moved to the final lock position, the second upper protrusion (2541) and the second lower protrusion (2542) are engaged with the second upper clamping groove (261) and the second lower clamping groove (262) of the second elastic buckle (26) respectively, so as to keep the second detection module (200) in the final lock position.