Direct-current charging base low-voltage module and direct-current charging base

Abstract

The utility model discloses a DC charging seat low-voltage module and a DC charging seat. The direct-current charging seat low-voltage module comprises an insulator and an electric connecting piece. The electric connecting piece comprises a first contact part which is used for electrically contacting with a PE terminal of the direct current charging seat; the second contact part is used for being electrically contacted with an A-terminal of the direct current charging seat; and a connection portion electrically connecting the first and second contact portions and fixed in the insulator. The direct-current charging seat low-voltage module is suitable for being installed in a slot in the charging seat shell from the outside in a pluggable mode, and the first contact part and the second contact part are in electric contact with the PE terminal and the A-terminal respectively when the direct-current charging seat low-voltage module is installed in the slot, so that the A-terminal is electrically connected to the PE terminal. According to the utility model, the PE terminal and the A-terminal of the direct-current charging seat are electrically connected together by the electric connecting piece of the low-voltage module of the direct-current charging seat, so that the PE terminal and the A-terminal are in common ground, and a low-voltage auxiliary loop of the direct-current charging seat can be effectively prevented from being burnt down.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile charging technical field especially, relates to a direct current charging seat low pressure module and including direct current charging seat low pressure module's direct current charging seat. BACKGROUND

[0002] In the prior art, the PE terminal (or called ground protection terminal) and A-terminal (or called low-voltage auxiliary power negative terminal) in the direct current charging seat are respectively single-wired, which will cause the PE terminal and A-terminal not to be common ground, that is, the PE terminal and A-terminal are not electrically interconnected together and grounded together. Therefore, in actual application, sometimes because the PE terminal and A-terminal are not common ground, there is a large voltage difference between the direct current charging seat and the direct current charging gun when they are matched, which will cause a large current in the low-voltage auxiliary circuit connected with the A+ terminal or A-terminal of the direct current charging seat, which is easy to cause the low-voltage auxiliary circuit to be burned out.

[0003] In addition, in the prior art, in order to improve the charging speed of new energy electric vehicles, it is necessary to increase the charging current, and at present the charging current is as high as 600A, and in the future it will even be increased to 1000A. When a large current flows through the power terminal of the direct current charging seat, a large amount of heat will be generated, which will cause the temperature of the power terminal of the direct current charging seat to rise sharply, and if the temperature rise cannot be controlled in time, it will cause safety accidents, for example, the direct current charging seat or other electrical equipment will be burned out.

[0004] In the prior art, in order to control the temperature rise of the power terminal, a lead frame is usually arranged in the direct current charging seat, and the direct current charging seat low pressure module is integrated on the lead frame. The direct current charging seat low pressure module includes a temperature sensor and a heat-conducting pad wrapped outside the temperature sensor. The heat-conducting pad is in thermal contact with the power terminal, and the temperature sensor is electrically connected with the lead frame. However, in the prior art, the lead frame is relatively large in size, and needs to be pre-installed in the charging seat shell, which is very inconvenient to use. In addition, in the prior art, in order to facilitate the installation of the lead frame, the charging seat shell needs to be designed in a split type, which leads to a complex structure of the charging seat shell. In addition, the existing lead frame needs to be able to rotate between a locking position for locking the power terminal and an unlocking position for unlocking the power terminal, which will cause the lead frame and the charging seat shell to be more complex, more difficult to assemble, and higher in cost. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0006] According to one aspect of the present application, a DC charging base low voltage module is provided. The DC charging base low voltage module comprises: an insulator and an electrical connector. The electrical connector comprises: a first contact portion for electrically contacting a PE terminal of a DC charging base; a second contact portion for electrically contacting an A-terminal of the DC charging base; and a connecting portion electrically connecting the first contact portion and the second contact portion and being fixed to the insulator. The DC charging base low voltage module is adapted to be externally mounted in a plug-in manner into a slot on a charging base housing, the first contact portion and the second contact portion being in electrical contact with the PE terminal and the A-terminal, respectively, when the DC charging base low voltage module is mounted into the slot, to electrically connect the A-terminal to the PE terminal.

[0007] According to one exemplary embodiment of the present application, the insulator is injection molded onto the electrical connector, such that the insulator and the electrical connector are integrated.

[0008] According to another exemplary embodiment of the present application, the electrical connector is an integrated stamped part.

[0009] According to another exemplary embodiment of the present application, the first contact portion comprises a pair of first spring pieces for clamping and electrically contacting the PE terminal; and / or the second contact portion comprises a pair of second spring pieces for clamping and electrically contacting the A-terminal.

[0010] According to another exemplary embodiment of the present application, the insulator has a first locking portion that abuts against the PE terminal when the DC charging base low voltage module is mounted into the slot, to lock the PE terminal in the charging base housing; and / or the insulator has a second locking portion that abuts against the A-terminal when the DC charging base low voltage module is mounted into the slot, to lock the A-terminal in the charging base housing.

[0011] According to another exemplary embodiment of the present application, the DC charging base low voltage module further comprises: a thermally conductive pad assembled to the insulator for thermally contacting a power terminal of a DC charging base; a temperature sensor disposed in the thermally conductive pad for detecting a temperature of the power terminal; and an electrically conductive lead disposed in the insulator and electrically connected to the temperature sensor, the thermally conductive pad being in thermal contact with the power terminal when the DC charging base low voltage module is mounted into the slot, to transfer heat of the power terminal to the temperature sensor.

[0012] According to another exemplary embodiment of the present application, the insulator is an injection molded piece directly molded onto the conductive lead and the electrical connector, such that the conductive lead, the electrical connector and the insulator are integrated.

[0013] According to another exemplary embodiment of the present application, the conductive lead has a connection end electrically connected to the temperature sensor and an external pin for electrically connecting to a connector located outside the charging base housing.

[0014] According to another exemplary embodiment of the present application, the insulator includes a bracket portion adapted to be inserted into a slot of the charging base housing and a counter portion adapted to be positioned outside the charging base housing, the heat conductive pad and the temperature sensor are mounted on the bracket portion, the counter portion has an insertion cavity allowing the connector to be inserted, and the external pin of the conductive lead extends into the insertion cavity for electrically connecting to the inserted connector.

[0015] According to another exemplary embodiment of the present application, a ring of sealing ring mounting grooves is formed on the outer circumferential surface of the bracket portion, and the direct current charging base low voltage module further includes a sealing ring mounted in the sealing ring mounting grooves, the sealing ring is adapted to be pressed between the bracket portion and the inner wall surface of the slot of the charging base housing to achieve sealing therebetween.

[0016] According to another exemplary embodiment of the present application, the bracket portion has a cover plate portion for covering the entrance of the slot of the charging base housing, and the insulator further includes a plurality of buckles connected to the periphery of the cover plate portion, the plurality of buckles are distributed around the outer periphery of the cover plate portion and are adapted to be engaged with a plurality of protruding portions on the charging base housing respectively to lock the direct current charging base low voltage module to the charging base housing.

[0017] According to another exemplary embodiment of the present application, the conductive lead includes a positive lead and a negative lead electrically connected to the positive pin and the negative pin of the temperature sensor respectively, and the external pins of the positive lead and the negative lead extend into the insertion cavity of the counter portion for electrically connecting to the inserted connector.

[0018] According to another exemplary embodiment of the present application, the connection end of the positive lead is adapted to be pluggably electrically connected to the positive pin of the temperature sensor, and / or the connection end of the negative lead is adapted to be pluggably electrically connected to the negative pin of the temperature sensor.

[0019] According to another exemplary embodiment of the present application, the connecting end of the positive lead is in the form of an elastic clip, and is adapted to clamp the positive lead pin of the temperature sensor; and / or the connecting end of the negative lead is in the form of an elastic clip, and is adapted to clamp the negative lead pin of the temperature sensor.

[0020] According to another exemplary embodiment of the present application, the DC charging base low-voltage module includes a plurality of heat-conducting pads and a plurality of temperature sensors respectively arranged in the plurality of heat-conducting pads, the plurality of heat-conducting pads are respectively in thermal contact with a plurality of power terminals, and the plurality of temperature sensors are respectively arranged to detect the temperature of the plurality of power terminals.

[0021] According to another exemplary embodiment of the present application, the conductive lead includes a plurality of positive leads and a single negative lead; the connecting end of the plurality of positive leads is respectively electrically connected to the positive lead pin of the plurality of temperature sensors, the single negative lead has a plurality of connecting ends respectively electrically connected to the negative lead pin of the plurality of temperature sensors; the external lead pin of the plurality of positive leads and the external lead pin of the single negative lead extend into the insertion cavity of the mating portion, and are used to be electrically connected with the inserted connector.

[0022] According to another exemplary embodiment of the present application, the heat-conducting pad is in the form of a block, and a recessed accommodating portion is formed on the insulator, and the heat-conducting pad is positioned and installed into the accommodating portion; an installation groove is formed in the heat-conducting pad, the main body portion of the temperature sensor is inserted into the installation groove of the heat-conducting pad, and the positive lead pin and the negative lead pin of the temperature sensor extend out of the heat-conducting pad;

[0023] According to another exemplary embodiment of the present application, the heat-conducting pad has an arc-shaped contact surface adapted to abut against the outer peripheral surface of the power terminal, so as to increase the thermal contact area between the heat-conducting pad and the power terminal.

[0024] According to another exemplary embodiment of the present application, the DC charging base low-voltage module further includes a circuit board installed and fixed to the insulator. The first contact portion and the second contact portion of the electrical connector are fixed to a contact spring sheet on the circuit board, and the connecting portion of the electrical connector is a conductive trace formed on the circuit board.

[0025] According to another exemplary embodiment of the present application, the DC charging base low-voltage module further comprises: a heat-conducting pad assembled to the circuit board for thermal contact with the power terminal of the DC charging base; a temperature sensor disposed in the heat-conducting pad for detecting the temperature of the power terminal; and an external pin fixed to the circuit board for electrical connection with a connector located outside the charging base housing, the temperature sensor being electrically connected to the external pin via a conductive trace on the circuit board, the heat-conducting pad being in thermal contact with the power terminal when the DC charging base low-voltage module is installed into the slot to transfer the heat of the power terminal to the temperature sensor.

[0026] According to another aspect of the present application, a DC charging base is provided. The DC charging base comprises: a charging base housing formed with a first insertion hole, a second insertion hole and a slot communicating with the first insertion hole and the second insertion hole; a PE terminal assembly comprising a PE terminal and being inserted into the first insertion hole; an A-terminal assembly comprising an A-terminal and being inserted into the second insertion hole; and the aforementioned DC charging base low-voltage module inserted into the slot from outside the charging base housing. The first contact portion and the second contact portion of the electrical connector are in electrical contact with the PE terminal and the A-terminal, respectively, to electrically connect the A-terminal to the PE terminal.

[0027] According to an exemplary embodiment of the present application, the PE terminal assembly further comprises: a grounding wire electrically connected to the PE terminal and led out of the first insertion hole of the charging base housing; and a first sealing member injection-molded onto the PE terminal, the first sealing member being pressed between the PE terminal and the inner wall surface of the first insertion hole to achieve sealing therebetween.

[0028] According to another exemplary embodiment of the present application, the A-terminal assembly further comprises: a second sealing member injection-molded onto the A-terminal, the second sealing member being pressed between the A-terminal and the inner wall surface of the second insertion hole to achieve sealing therebetween.

[0029] According to another exemplary embodiment of the present application, a plurality of protrusions are formed on the outer side of the peripheral wall of the slot of the charging base housing, the plurality of protrusions being spaced around the slot for engaging with a plurality of buckles on the insulator of the DC charging base low-voltage module, respectively, to lock the DC charging base low-voltage module to the charging base housing.

[0030] According to another exemplary embodiment of the present application, the axial direction of the slot is perpendicular to the axial directions of the first insertion hole and the second insertion hole, and the DC charging base low-voltage module is inserted into the slot along the radial direction of the first insertion hole and the second insertion hole.

[0031] According to another exemplary embodiment of the utility model, a third jack is further formed in the charging base shell, the insertion slot is in communication with the third jack; the direct current charging base further includes a power terminal assembly inserted into the third jack, the power terminal assembly includes a power terminal, and a heat conduction pad of the direct current charging base low-voltage module is in thermal contact with the power terminal to transfer heat of the power terminal to a temperature sensor of the direct current charging base low-voltage module.

[0032] According to another exemplary embodiment of the utility model, the power terminal assembly further includes a high-voltage cable electrically connected to the power terminal and led out of the charging base shell, and a sealing plug sleeved on the high-voltage cable and inserted into the third jack, the sealing plug is pressed between the high-voltage cable and the inner wall surface of the third jack to realize sealing therebetween.

[0033] According to another exemplary embodiment of the utility model, the power terminal includes a cylindrical portion for mating with a mating power terminal, and a welding portion connected to the rear end of the cylindrical portion for welding to a high-voltage cable, and the heat conduction pad is in thermal contact with the outer peripheral surface of the cylindrical portion of the power terminal and adjacent to the welding portion of the power terminal.

[0034] According to another exemplary embodiment of the utility model, a sealing ring mounting groove is formed on the rear end portion of the cylindrical portion of the power terminal, and the power terminal assembly further includes a sealing ring mounted in the sealing ring mounting groove, and the sealing ring is pressed between the cylindrical portion of the power terminal and the inner wall surface of the third jack of the charging base shell to realize sealing therebetween.

[0035] According to another exemplary embodiment of the utility model, the charging base shell has a plurality of third jacks, the direct current charging base has a plurality of power terminal assemblies respectively inserted into the plurality of third jacks, the insertion slot is in communication with the plurality of third jacks, and the direct current charging base low-voltage module includes a plurality of heat conduction pads respectively in thermal contact with the power terminals of the plurality of power terminal assemblies and a plurality of temperature sensors for respectively detecting the temperatures of the plurality of power terminals.

[0036] According to another exemplary embodiment of the utility model, the charging base shell is an integral injection molding part.

[0037] In the foregoing various exemplary embodiments according to the utility model, the electrical connector in the direct current charging base low-voltage module can electrically interconnect the PE terminal and the A-terminal of the direct current charging base together, so that the PE terminal and the A-terminal can be grounded together, thereby effectively preventing the low-voltage auxiliary circuit of the direct current charging base from being burnt out.

[0038] In addition, in the foregoing some exemplary embodiments according to the utility model, the DC charging seat low voltage module not only is small in size, but also can be directly inserted into the slot on the charging seat shell from the outside of the charging seat shell, and installation and use are very convenient.

[0039] In addition, in the foregoing some exemplary embodiments according to the utility model, the DC charging seat low voltage module is integrated with a temperature sensor for detecting the temperature of the power terminal of the DC charging seat, so that the DC charging seat can be prevented from being burned due to excessively high temperature.

[0040] Other purposes and advantages of the utility model will be apparent and can help to have a comprehensive understanding of the utility model through the description of the utility model made hereinafter with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0041] Figure 1 A perspective view of a DC charging seat according to an exemplary embodiment of the utility model is shown;

[0042] Figure 2 An exploded view of a DC charging seat according to an exemplary embodiment of the utility model is shown;

[0043] Figure 3 A perspective view of a DC charging seat low voltage module, a PE terminal, an A-terminal and a power terminal according to an exemplary embodiment of the utility model is shown;

[0044] Figure 4 An exploded view of a DC charging seat low voltage module and a power terminal according to an exemplary embodiment of the utility model is shown;

[0045] Figure 5 A perspective view of a DC charging seat low voltage module, a PE terminal and an A-terminal from the front side according to an exemplary embodiment of the utility model is shown;

[0046] Figure 6 A perspective view of a DC charging seat low voltage module, a PE terminal and an A-terminal from the rear side according to an exemplary embodiment of the utility model is shown;

[0047] Figure 7 An exploded view of a DC charging seat low voltage module, a PE terminal and an A-terminal according to an exemplary embodiment of the utility model is shown;

[0048] Figure 8 A perspective view of a DC charging seat low voltage module according to an exemplary embodiment of the utility model is shown;

[0049] Figure 9shows a disassembled schematic view of a DC charging base low voltage module according to an exemplary embodiment of the present application;

[0050] Figure 10 shows another disassembled schematic view of a DC charging base low voltage module according to an exemplary embodiment of the present application;

[0051] Figure 11 shows a perspective schematic view of a conductive lead and a temperature sensor of a DC charging base low voltage module according to an exemplary embodiment of the present application;

[0052] Figure 12 shows a perspective schematic view of a DC charging base low voltage module according to an exemplary embodiment of the present application;

[0053] Figure 13 shows a perspective schematic view of an electrical connector of a DC charging base low voltage module according to an exemplary embodiment of the present application;

[0054] Figure 14 shows a schematic view of an electrical connector of a DC charging base low voltage module in electrical contact with a PE terminal and an A-terminal according to an exemplary embodiment of the present application;

[0055] Figure 15 shows a perspective schematic view of a power terminal of a DC charging base according to an exemplary embodiment of the present application;

[0056] Figure 16 shows a side view of a power terminal assembly of a DC charging base according to an exemplary embodiment of the present application. DETAILED DESCRIPTION

[0057] The technical solutions of the present application will be further described in detail below, with reference to the drawings. In the description, identical or similar reference numerals indicate identical or similar components. The following description of the embodiments of the present application with reference to the drawings is intended to explain the general inventive concept of the present application, and should not be understood as a limitation of the present application.

[0058] In addition, in the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that one or more embodiments can be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to avoid obscuring the accompanying drawings.

[0059] According to one general technical concept of the present application, a DC charging base low-voltage module is provided. The DC charging base low-voltage module comprises: an insulator and an electrical connector. The electrical connector comprises: a first contact portion for electrical contact with a PE terminal of a DC charging base; a second contact portion for electrical contact with an A-terminal of the DC charging base; and a connecting portion electrically connecting the first contact portion and the second contact portion and fixed to the insulator. The DC charging base low-voltage module is adapted to be externally mounted in a plug-in manner into a slot on a charging base housing, the first contact portion and the second contact portion being in electrical contact with the PE terminal and the A-terminal, respectively, when the DC charging base low-voltage module is mounted into the slot, to electrically connect the A-terminal to the PE terminal.

[0060] According to another general technical concept of the present application, a DC charging base is provided. The DC charging base comprises: a charging base housing formed with a first insertion hole, a second insertion hole and a slot communicating with the first insertion hole and the second insertion hole; a PE terminal assembly comprising a PE terminal and being inserted into the first insertion hole; an A-terminal assembly comprising an A-terminal and being inserted into the second insertion hole; and the aforementioned DC charging base low-voltage module inserted into the slot from the outside of the charging base housing. The first contact portion and the second contact portion of the electrical connector are in electrical contact with the PE terminal and the A-terminal, respectively, to electrically connect the A-terminal to the PE terminal.

[0061] Figure 1 A perspective view schematically showing a DC charging base according to one exemplary embodiment of the present application is shown; Figure 2 An exploded view schematically showing a DC charging base according to one exemplary embodiment of the present application is shown; Figure 3 A perspective view schematically showing a DC charging base low-voltage module 100, a PE terminal 111, an A-terminal 121 and a power terminal 131 according to one exemplary embodiment of the present application is shown; Figure 4 An exploded view schematically showing a DC charging base low-voltage module 100 and a power terminal 131 according to one exemplary embodiment of the present application is shown; Figure 5 A perspective view schematically showing a DC charging base low-voltage module 100, a PE terminal 111 and an A-terminal 121 from a front side according to one exemplary embodiment of the present application is shown; Figure 6 A perspective view schematically showing a DC charging base low-voltage module 100, a PE terminal 111 and an A-terminal 121 from a rear side according to one exemplary embodiment of the present application is shown; Figure 7 An exploded view schematically showing a DC charging base low-voltage module 100, a PE terminal 111 and an A-terminal 121 according to one exemplary embodiment of the present application is shown; Figure 8A perspective view of a DC charging dock low-voltage module 100 according to an exemplary embodiment of the present invention is shown. Figure 9 An exploded view of a low-voltage module 100 of a DC charging dock according to an exemplary embodiment of the present invention is shown. Figure 10 This shows another exploded view of a low-voltage module 100 for a DC charging dock according to an exemplary embodiment of the present invention; Figure 11 A perspective view of the conductive leads 6 and temperature sensor 4 of a DC charging dock low-voltage module 100 according to an exemplary embodiment of the present invention is shown. Figure 12 A perspective view of a DC charging dock low-voltage module 100 according to an exemplary embodiment of the present invention is shown. Figure 13 A perspective view of the electrical connector 3 of a DC charging dock low-voltage module 100 according to an exemplary embodiment of the present invention is shown. Figure 14 This diagram shows the electrical connection 3 of a DC charging dock low-voltage module 100 according to an exemplary embodiment of the present invention, in electrical contact with the PE terminal 111 and the A- terminal 121.

[0062] like Figures 1 to 14 As shown, in an exemplary embodiment of this utility model, a low-voltage module 100 for a DC charging dock is disclosed. The low-voltage module 100 includes an insulator 2 and an electrical connector 3. The electrical connector 3 includes a first contact portion 31, a second contact portion 32, and a connecting portion 30. The first contact portion 31 is used for electrical contact with the PE terminal 111 of the DC charging dock. The second contact portion 32 is used for electrical contact with the A- terminal 121 of the DC charging dock. The connecting portion 30 electrically connects the first contact portion 31 and the second contact portion 32 and is fixed to the insulator 2. The low-voltage module 100 is adapted to be externally and pluggably installed into a slot 14 on the charging dock housing 1. When the low-voltage module 100 is installed into the slot 14, the first contact portion 31 and the second contact portion 32 make electrical contact with the PE terminal 111 and the A- terminal 121 respectively, so as to electrically connect the A- terminal 121 to the PE terminal 111.

[0063] like Figures 1 to 14 As shown in the illustrated embodiment, the insulator 2 is directly injection molded onto the electrical connector 3, making the insulator 2 and the electrical connector 3 a single unit. This reduces manufacturing costs and improves production efficiency.

[0064] like Figures 1 to 14 As shown in the illustrated embodiment, the electrical connector 3 can be a one-piece stamped part. However, the present invention is not limited to the illustrated embodiment; for example, the electrical connector 3 can also be made of multiple parts welded together.

[0065] like Figures 1 to 14As shown in the illustrated embodiment, the first contact portion 31 includes a pair of first spring tabs. The pair of first spring tabs are used to hold the PE terminal 111. The second contact portion 32 includes a pair of second spring tabs. The pair of second spring tabs are used to hold the A- terminal 121. However, the present invention is not limited to the illustrated embodiment, and the first contact portion 31 and the second contact portion 32 may also employ other suitable elastic contact structures.

[0066] like Figures 1 to 14 As shown in the illustrated embodiment, the insulator 2 has a first locking portion 210 that abuts against the PE terminal 111 when the DC charging socket low-voltage module 100 is installed into the slot 14, thereby locking the PE terminal 111 into the charging socket housing 1. The insulator 2 also has a second locking portion 220 that abuts against the A- terminal 121 when the DC charging socket low-voltage module 100 is installed into the slot 14, thereby locking the A- terminal 121 into the charging socket housing 1.

[0067] like Figures 1 to 14 As shown in the illustrated embodiment, the DC charging dock low-voltage module 100 further includes a thermal pad 5, a temperature sensor 4, and a conductive lead 6. The thermal pad 5 is assembled onto the insulator 2 for thermal contact with the power terminal 131 of the DC charging dock. The temperature sensor 4 is disposed in the thermal pad 5 for detecting the temperature of the power terminal 131. The conductive lead 6 is disposed in the insulator 2 and electrically connected to the temperature sensor 4. The thermal pad 5 makes thermal contact with the power terminal 131 when the DC charging dock low-voltage module 100 is installed in the slot 14 to transfer heat from the power terminal 131 to the temperature sensor 4.

[0068] like Figures 1 to 14 As shown in the illustrated embodiment, the insulator 2 is directly injection molded onto the conductive lead 6 and the electrical connector 3, making the conductive lead 6, the electrical connector 3, and the insulator 2 a single unit.

[0069] like Figures 1 to 14 As shown, in the illustrated embodiment, the conductive lead 6 has a connection end 6a electrically connected to the temperature sensor 4 and an external pin 6b for electrically connecting to a connector located outside the charging housing 1.

[0070] like Figures 1 to 14 As shown in the illustrated embodiment, the insulator 2 includes a support portion 21 and a mating portion 22. The support portion 21 is adapted to be inserted into a slot 14 of the charging housing 1. The mating portion 22 is adapted to be positioned outside the charging housing 1. A thermal pad 5 and a temperature sensor 4 are mounted on the support portion 21. The mating portion 22 has an insertion cavity 20 that allows a connector to be inserted, and an external pin 6b of a conductive lead 6 extends into the insertion cavity 20 for electrical connection with the inserted connector.

[0071] likeFigures 1 to 14 As shown in the illustrated embodiment, in the outer circumferential surface of the bracket portion 21, a ring of sealing ring mounting grooves 24 is formed, and the DC charging base low-voltage module 100 further comprises a sealing ring 26 mounted in the sealing ring mounting grooves 24, which is adapted to be pressed between the bracket portion 21 and the inner wall surface of the insertion slot 14 of the charging base housing 1 to achieve sealing therebetween.

[0072] As shown in the illustrated embodiment, the bracket portion 21 has a cover plate portion 23 for covering the entrance of the insertion slot 14 of the charging base housing 1, and the insulator 2 further comprises a plurality of buckles 25 connected to the periphery of the cover plate portion 23, which are spaced apart around the outer circumference of the cover plate portion 23 and are adapted to be engaged with a plurality of protrusions 15 on the charging base housing 1 respectively, so as to lock the DC charging base low-voltage module 100 to the charging base housing 1. Figures 1 to 14

[0073] As shown in the illustrated embodiment, the conductive lead 6 comprises a positive lead 61 and a negative lead 62 electrically connected to the positive lead pin 41 and the negative lead pin 42 of the temperature sensor 4 respectively. The outer connecting pin 6b of the positive lead 61 and the negative lead 62 extends into the insertion cavity 20 of the insertion portion 22 and is adapted to be electrically connected with the inserted connector. Figures 1 to 14 As shown in the illustrated embodiment, the connecting end 6a of the positive lead 61 is adapted to be plug-in electrically connected with the positive lead pin 41 of the temperature sensor 4. The connecting end 6a of the negative lead 62 is adapted to be plug-in electrically connected with the negative lead pin 42 of the temperature sensor 4.

[0074] Figures 1 to 14 As shown in the illustrated embodiment, the connecting end 6a of the positive lead 61 is in the form of an elastic clip and is adapted to clamp the positive lead pin 41 of the temperature sensor 4. The connecting end 6a of the negative lead 62 is in the form of an elastic clip and is adapted to clamp the negative lead pin 42 of the temperature sensor 4.

[0075] As shown in the illustrated embodiment, the DC charging base low-voltage module 100 comprises a plurality of heat-conducting pads 5 and a plurality of temperature sensors 4 respectively arranged in the plurality of heat-conducting pads 5, the plurality of heat-conducting pads 5 are adapted to be in thermal contact with the plurality of power terminals 131 respectively, and the plurality of temperature sensors 4 are adapted to detect the temperature of the plurality of power terminals 131 respectively. Figures 1 to 14 As shown in the illustrated embodiment, the DC charging base low-voltage module 100 comprises a plurality of heat-conducting pads 5 and a plurality of temperature sensors 4 respectively arranged in the plurality of heat-conducting pads 5, the plurality of heat-conducting pads 5 are adapted to be in thermal contact with the plurality of power terminals 131 respectively, and the plurality of temperature sensors 4 are adapted to detect the temperature of the plurality of power terminals 131 respectively.

[0076] Figures 1 to 14 As shown in the illustrated embodiment, the DC charging base low-voltage module 100 comprises a plurality of heat-conducting pads 5 and a plurality of temperature sensors 4 respectively arranged in the plurality of heat-conducting pads 5, the plurality of heat-conducting pads 5 are adapted to be in thermal contact with the plurality of power terminals 131 respectively, and the plurality of temperature sensors 4 are adapted to detect the temperature of the plurality of power terminals 131 respectively.

[0077] As shown in the illustrated embodiment, the DC charging base low-voltage module 100 comprises a plurality of heat-conducting pads 5 and a plurality of temperature sensors 4 respectively arranged in the plurality of heat-conducting pads 5, the plurality of heat-conducting pads 5 are adapted to be in thermal contact with the plurality of power terminals 131 respectively, and the plurality of temperature sensors 4 are adapted to detect the temperature of the plurality of power terminals 131 respectively. Figures 1 to 14 ​​​As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive leads 61 and a single negative lead 62. The connection ends 6a of the plurality of positive leads 61 are electrically connected to the positive pins 41 of the plurality of temperature sensors 4, respectively. The single negative lead 62 has a plurality of connection ends 6a that are electrically connected to the negative pins 42 of the plurality of temperature sensors 4, respectively. The external pins 6b of the plurality of positive leads 61 and the external pins 6b of the single negative lead 62 extend into the insertion cavity 20 of the mating portion 22 for electrical connection with the inserted connector.

[0078] like Figures 1 to 14 As shown in the illustrated embodiment, the thermal pad 5 is block-shaped, with a recessed receiving portion 205 formed on the insulator 2. The thermal pad 5 is positioned and installed into the receiving portion 205. A mounting groove 51 is formed in the thermal pad 5, and the main body of the temperature sensor 4 is inserted into the mounting groove 51 of the thermal pad 5. The positive electrode pin 41 and the negative electrode pin 42 of the temperature sensor 4 extend out from the thermal pad 5.

[0079] like Figures 1 to 14 As shown in the illustrated embodiment, the thermal pad 5 has an arcuate contact surface 5a adapted to abut against the outer peripheral surface of the power terminal 131 to increase the thermal contact area between the thermal pad 5 and the power terminal 131.

[0080] Please note that the DC charging dock low-voltage module 100 of this utility model is not limited to the illustrated embodiment. For example, in another exemplary embodiment of this utility model, the DC charging dock low-voltage module further includes a circuit board (not shown), which is mounted and fixed to an insulator 2. For ease of installation, the insulator 2 may be in the form of a shell. The first contact portion 31 and the second contact portion 32 of the aforementioned electrical connector 3 are fixed to contact springs on the circuit board, and the connection portion 30 of the aforementioned electrical connector 3 may be a conductive trace formed on the circuit board. In addition, in this embodiment, the DC charging dock low-voltage module further includes a thermal pad 5, a temperature sensor 4, and an external pin 6b. The thermal pad 5 is assembled onto the circuit board for thermal contact with the power terminal 131 of the DC charging dock. The temperature sensor 4 is disposed in the thermal pad 5 for detecting the temperature of the power terminal 131. The external pin 6b is fixed onto the circuit board for electrical connection to a connector (not shown) located outside the charging dock housing 1. The temperature sensor 4 is electrically connected to the external pin 6b via conductive traces on the circuit board. The thermal pad 5 makes thermal contact with the power terminal 131 when the DC charging dock low-voltage module 100 is installed into the slot 14, so as to transfer the heat of the power terminal 131 to the temperature sensor 4.

[0081] like Figures 1 to 14As shown in another exemplary embodiment of the present application, a DC charging base is also disclosed. The DC charging base comprises a charging base housing 1, a PE terminal assembly 110, an A-terminal assembly 120 and a DC charging base low voltage module 100. The charging base housing 1 is formed with a first insertion hole 11, a second insertion hole 12 and a slot 14 communicating with the first insertion hole 11 and the second insertion hole 12. The PE terminal assembly 110 comprises a PE terminal 111 and is inserted into the first insertion hole 11. The A-terminal assembly 120 comprises an A-terminal 121 and is inserted into the second insertion hole 12. The DC charging base low voltage module 100 is inserted into the slot 14 from outside of the charging base housing 1. The first contact portion 31 and the second contact portion 32 of the electrical connector 3 are in electrical contact with the PE terminal 111 and the A-terminal 121 respectively to electrically connect the A-terminal 121 to the PE terminal 111.

[0082] As Figures 1 to 14 shown in the illustrated embodiment, the PE terminal assembly 110 further comprises a grounding wire (not shown) and a first sealing member 112. The grounding wire is electrically connected to the PE terminal 111 and is led out of the first insertion hole 11 of the charging base housing 1. The first sealing member 112 is injection molded onto the PE terminal 111. The first sealing member 112 is pressed between the PE terminal 111 and the inner wall surface of the first insertion hole 11 to achieve sealing therebetween.

[0083] As Figures 1 to 14 shown in the illustrated embodiment, the A-terminal assembly 120 further comprises a second sealing member 122. The second sealing member 122 is injection molded onto the A-terminal 121. The second sealing member 122 is pressed between the A-terminal 121 and the inner wall surface of the second insertion hole 12 to achieve sealing therebetween.

[0084] As Figures 1 to 14 shown in the illustrated embodiment, a plurality of protrusions 15 are formed on the outer side of the peripheral wall of the slot 14 of the charging base housing 1, and the plurality of protrusions 15 are distributed at intervals around the slot 14 for engaging with the plurality of buckles 25 on the insulator 2 of the DC charging base low voltage module 100 respectively to lock the DC charging base low voltage module 100 to the charging base housing 1.

[0085] As Figures 1 to 14 shown in the illustrated embodiment, the axial direction of the slot 14 is perpendicular to the axial directions of the first insertion hole 11 and the second insertion hole 12, and the DC charging base low voltage module 100 is inserted into the slot 14 along the radial direction of the first insertion hole 11 and the second insertion hole 12.

[0086] As Figures 1 to 14As shown in the illustrated embodiment, a third socket 13 is also formed in the charging dock housing 1, and the slot 14 communicates with the third socket 13. The DC charging dock also includes a power terminal assembly 130 inserted into the third socket 13. The power terminal assembly 130 includes a power terminal 131. The thermal pad 5 of the DC charging dock low-voltage module 100 is in thermal contact with the power terminal 131 to transfer the heat of the power terminal 131 to the temperature sensor 4 of the DC charging dock low-voltage module 100.

[0087] Figure 15 A perspective view of the power terminal 131 of a DC charging dock according to an exemplary embodiment of the present invention is shown. Figure 16 Showing a side view of the power terminal assembly 130 of a DC charging dock according to an exemplary embodiment of the present invention.

[0088] like Figure 15 and Figure 16 As shown, in the illustrated embodiment, the power terminal assembly 130 further includes a high-voltage cable 134 and a sealing plug (not shown). The high-voltage cable 134 is electrically connected to the power terminal 131 and extends from the charging housing 1. The sealing plug is fitted onto the high-voltage cable 134 and inserted into the third socket 13. The sealing plug is pressed between the inner wall surfaces of the high-voltage cable 134 and the third socket 13 to achieve a seal between them.

[0089] like Figure 15 and Figure 16 As shown in the illustrated embodiment, the power terminal 131 includes a cylindrical portion 132 and a soldering portion 133. The cylindrical portion 132 is used to mate with a mating power terminal (not shown). The soldering portion 133 is connected to the rear end of the cylindrical portion 132 and is used to solder to a high-voltage cable 134. A thermally conductive pad 5 is in thermal contact with the outer peripheral surface of the cylindrical portion 132 of the power terminal 131 and is adjacent to the soldering portion 133 of the power terminal 131.

[0090] like Figure 15 and Figure 16 As shown, in the illustrated embodiment, a sealing ring mounting groove 135 is formed on the rear end of the cylindrical portion 132 of the power terminal 131. The power terminal assembly 130 also includes a sealing ring (not shown) mounted in the sealing ring mounting groove 135, which is pressed between the cylindrical portion 132 of the power terminal 131 and the inner wall surface of the third insertion hole 13 of the charging housing 1 to achieve a seal between the two.

[0091] like Figures 1 to 14As shown in the illustrated embodiment, the charging base housing 1 has a plurality of third insertion holes 13, and the DC charging base has a plurality of power terminal assemblies 130 respectively inserted into the plurality of third insertion holes 13. The insertion slots 14 are in communication with the plurality of third insertion holes 13, and the DC charging base low-voltage module 100 includes a plurality of heat-conducting pads 5 respectively in thermal contact with power terminals 131 of the plurality of power terminal assemblies 130 and a plurality of temperature sensors 4 for respectively detecting temperatures of the plurality of power terminals 131. In the illustrated embodiment, the charging base housing 1 has two third insertion holes 13, the DC charging base has two power terminal assemblies 130, and the DC charging base low-voltage module 100 includes two heat-conducting pads 5 and two temperature sensors 4.

[0092] As Figures 1 to 14 shown in the illustrated embodiment, the charging base housing 1 is a one-piece injection molding.

[0093] Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can make improvements, and the structures described in various embodiments can be freely combined without structural or principle conflicts, and these changes should fall within the protection scope of the utility model.

[0094] Although the utility model has been described in conjunction with the drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the utility model and cannot be understood as a limitation of the utility model.

[0095] Although some embodiments of the general concept of the utility model have been shown and described, those skilled in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the utility model, and the scope of the utility model is limited by the claims and their equivalents.

[0096] It should be noted that the wording "comprising" does not exclude other elements or steps, and the wording "a" or "one" does not exclude a plurality. In addition, any element reference of the claims should not be understood as limiting the scope of the utility model.

Claims

1. A low voltage module for a direct current charging station, characterized in that, Comprise: an insulator (2); and an electrical connector (3) comprising: a first contact portion (31) for electrically contacting a PE terminal (111) of a DC charging station; a second contact portion (32) for electrically contacting an A-terminal (121) of the DC charging station; and a connecting portion (30) electrically connecting the first contact portion (31) and the second contact portion (32) and being fixed to the insulator (2), the DC charging station low-voltage module (100) is adapted to be externally mounted in a plug-in manner into a slot (14) on a charging station housing (1), the first contact portion (31) and the second contact portion (32) are in electrical contact with the PE terminal (111) and the A-terminal (121), respectively, when the DC charging station low-voltage module (100) is mounted into the slot (14) to electrically connect the A-terminal (121) to the PE terminal (111).

2. The DC charging station low-voltage module according to claim 1, characterized in that: the insulator (2) is directly injection molded onto the electrical connector (3) such that the insulator (2) and the electrical connector (3) are an integral piece. the electrical connector (3) is an integral stamped part.

3. The DC charging station low voltage module of claim 1, wherein:

4. The DC charging station low-voltage module according to claim 1, characterized in that: the first contact portion (31) comprises a pair of first spring pieces for clamping the PE terminal (111); and / or the second contact portion (32) comprises a pair of second spring pieces for clamping the A-terminal (121).

5. The DC charging station low-voltage module according to claim 1, characterized in that: the insulator (2) has a first locking portion (210) which, when the DC charging station low-voltage module (100) is mounted into the slot (14), rests against the PE terminal (111) to lock the PE terminal (111) in the charging station housing (1); and / or the insulator (2) has a second locking portion (220) which, when the DC charging station low-voltage module (100) is mounted into the slot (14), rests against the A-terminal (121) to lock the A-terminal (121) in the charging station housing (1). further comprising:

6. The DC charging station low voltage module of claim 1, wherein, a thermally conductive pad (5) assembled to the insulator (2) for thermal contact with a power terminal (131) of a DC charging station; a temperature sensor (4) arranged in the thermally conductive pad (5) for detecting a temperature of the power terminal (131); and an electrically conductive lead (6) arranged in the insulator (2) and electrically connected with the temperature sensor (4), the thermally conductive pad (5) is in thermal contact with the power terminal (131) when the DC charging station low-voltage module (100) is mounted into the slot (14) to transfer heat of the power terminal (131) to the temperature sensor (4).

7. The DC charging station low-voltage module according to claim 6, characterized in that: ​ The insulator (2) is directly injection molded on the conductive lead (6) and the electrical connector (3), so that the conductive lead (6), the electrical connector (3) and the insulator (2) become an integral part.

8. The DC charging station low-voltage module according to claim 6, characterized in that: The conductive lead (6) has a connecting end (6a) electrically connected with the temperature sensor (4) and an external pin (6b) for electrically connecting with a connector located outside the charging station housing (1).

9. The DC charging station low-voltage module according to claim 8, characterized in that: The insulator (2) comprises: a bracket portion (21) adapted to be inserted into a slot (14) of the charging station housing (1); and a counterpart portion (22) adapted to be positioned outside the charging station housing (1), The thermally conductive pad (5) and the temperature sensor (4) are mounted on the bracket portion (21), the counterpart portion (22) has an insertion cavity (20) allowing the insertion of the connector, and the external pin (6b) of the conductive lead (6) extends into the insertion cavity (20) to electrically connect with the inserted connector.

10. The DC charging station low-voltage module according to claim 9, characterized in that: A ring of sealing ring mounting grooves (24) is formed on the outer peripheral surface of the bracket portion (21), and the DC charging station low-voltage module (100) further comprises a sealing ring (26) mounted in the sealing ring mounting grooves (24), which is adapted to be pressed between the bracket portion (21) and the inner wall surface of the slot (14) of the charging station housing (1) to achieve sealing therebetween.

11. The DC charging station low-voltage module according to claim 9, characterized in that: The bracket portion (21) has a cover plate portion (23) for covering the entrance of the slot (14) of the charging station housing (1), and the insulator (2) further comprises a plurality of buckles (25) connected with the periphery of the cover plate portion (23), which are distributed around the outer periphery of the cover plate portion (23) and are used to engage with a plurality of protrusions (15) on the charging station housing (1) respectively, so as to lock the DC charging station low-voltage module (100) to the charging station housing (1).

12. The DC charging station low-voltage module according to claim 9, characterized in that: The conductive lead (6) comprises a positive lead (61) and a negative lead (62) electrically connected with the positive lead pin (41) and the negative lead pin (42) of the temperature sensor (4) respectively; and The external pins (6b) of the positive lead (61) and the negative lead (62) extend into the insertion cavity (20) of the counterpart portion (22) for electrically connecting with the inserted connector.

13. The DC charging station low-voltage module according to claim 12, characterized in that: The connecting end (6a) of the positive lead (61) is adapted to be pluggably electrically connected with the positive lead pin (41) of the temperature sensor (4); and / or The connecting end (6a) of the negative lead (62) is adapted to be pluggably electrically connected with the negative lead pin (42) of the temperature sensor (4). The connecting end (6a) of the negative electrode lead (62) is adapted to be pluggably electrically connected with the negative electrode pin (42) of the temperature sensor (4).

14. The DC charging station low-voltage module according to claim 13, characterized in that: The connecting end (6a) of the positive electrode lead (61) is in the form of an elastic clip, and is adapted to clamp the positive electrode pin (41) of the temperature sensor (4); and / or The connecting end (6a) of the negative electrode lead (62) is in the form of an elastic clip, and is adapted to clamp the negative electrode pin (42) of the temperature sensor (4).

15. The DC charging station low-voltage module according to claim 9, characterized in that: The DC charging station low-voltage module (100) comprises a plurality of heat-conducting pads (5) for being respectively in thermal contact with a plurality of power terminals (131), and a plurality of temperature sensors (4) respectively arranged in the plurality of heat-conducting pads (5) for detecting temperatures of the plurality of power terminals (131).

16. The DC charging station low-voltage module according to claim 15, characterized in that: The electrically-conductive lead (6) comprises a plurality of positive electrode leads (61) and a single negative electrode lead (62); The connecting ends (6a) of the plurality of positive electrode leads (61) are respectively electrically connected to the positive electrode pins (41) of the plurality of temperature sensors (4), and the single negative electrode lead (62) has a plurality of connecting ends (6a) respectively electrically connected to the negative electrode pins (42) of the plurality of temperature sensors (4); The external pins (6b) of the plurality of positive electrode leads (61) and the external pin (6b) of the single negative electrode lead (62) extend into the insertion cavity (20) of the mating portion (22) for electrical connection with the inserted connector.

17. The DC charging station low-voltage module according to claim 6, characterized in that: The heat-conducting pad (5) is in the form of a block, and a recessed accommodating portion (205) is formed on the insulator (2), and the heat-conducting pad (5) is positioned and mounted into the accommodating portion (205); An installation groove (51) is formed in the heat-conducting pad (5), the main body portion of the temperature sensor (4) is inserted into the installation groove (51) of the heat-conducting pad (5), and the positive electrode pin (41) and the negative electrode pin (42) of the temperature sensor (4) extend out of the heat-conducting pad (5).

18. The DC charging station low-voltage module according to claim 17, characterized in that: The heat-conducting pad (5) has an arc-shaped contact surface (5a) adapted to abut against the outer peripheral surface of the power terminal (131) to increase the thermal contact area between the heat-conducting pad (5) and the power terminal (131).

19. The direct current charging station low voltage module of claim 1, wherein, Further comprising: a circuit board mounted and fixed to the insulator (2), the first contact portion (31) and the second contact portion (32) of the electric connector (3) are contact springs fixed to the circuit board, and the connecting portion (30) of the electric connector (3) is an electrically-conductive trace formed on the circuit board.

20. The direct current charging station low voltage module of claim 19, wherein, Further comprising: a thermally conductive pad (5) assembled to the circuit board for thermal contact with a power terminal (131) of a DC charging station; a temperature sensor (4) disposed in the thermally conductive pad (5) for detecting a temperature of the power terminal (131); and an external pin (6b) fixed to the circuit board for electrical connection with a connector located outside the charging station housing (1), the temperature sensor (4) is electrically connected to the external pin (6b) via a conductive trace on the circuit board, the thermally conductive pad (5) is in thermal contact with the power terminal (131) when the DC charging station low-voltage module (100) is installed into the slot (14) to transfer heat of the power terminal (131) to the temperature sensor (4).

21. A direct current charging station, characterized by comprise: a charging station housing (1) formed with a first insertion hole (11), a second insertion hole (12), and a slot (14) in communication with the first insertion hole (11) and the second insertion hole (12); a PE terminal assembly (110) comprising a PE terminal (111) and being inserted into the first insertion hole (11); an A-terminal assembly (120) comprising an A-terminal (121) and being inserted into the second insertion hole (12); and the DC charging station low-voltage module (100) of any one of claims 1-20 is inserted into the slot (14) from outside the charging station housing (1), the first contact portion (31) and the second contact portion (32) of the electrical connector (3) are in electrical contact with the PE terminal (111) and the A-terminal (121), respectively, to electrically connect the A-terminal (121) to the PE terminal (111).

22. The DC charging station of claim 21, wherein: the PE terminal assembly (110) further comprises: a grounding wire electrically connected to the PE terminal (111) and led out of the first insertion hole (11) of the charging station housing (1); and a first sealing member (112) injection molded onto the PE terminal (111), the first sealing member (112) is pressed between the PE terminal (111) and an inner wall surface of the first insertion hole (11) to achieve sealing therebetween.

23. The DC charging station of claim 21, wherein: the A-terminal assembly (120) further comprises: a second sealing member (122) injection molded onto the A-terminal (121), the second sealing member (122) is pressed between the A-terminal (121) and an inner wall surface of the second insertion hole (12) to achieve sealing therebetween.

24. The DC charging station of claim 21, wherein: ​ A plurality of protrusions (15) are formed on the outer side of the peripheral wall of the socket (14) of the charging base housing (1), and are spaced around the socket (14) for engaging with a plurality of buckles (25) on the insulator (2) of the DC charging base low-voltage module (100) respectively, so as to lock the DC charging base low-voltage module (100) to the charging base housing (1).

25. The DC charging base of claim 21, wherein: The axial direction of the socket (14) is perpendicular to the axial directions of the first and second insertion holes (11, 12), and the DC charging base low-voltage module (100) is inserted into the socket (14) along the radial directions of the first and second insertion holes (11, 12).

26. The DC charging base of claim 21, wherein: A third insertion hole (13) is further formed in the charging base housing (1), and the socket (14) communicates with the third insertion hole (13); The DC charging base further comprises a power terminal assembly (130) inserted into the third insertion hole (13), and the power terminal assembly (130) comprises a power terminal (131), and the heat-conducting pad (5) of the DC charging base low-voltage module (100) is in thermal contact with the power terminal (131) to transfer the heat of the power terminal (131) to the temperature sensor (4) of the DC charging base low-voltage module (100).

27. The DC charging base of claim 26, wherein: The power terminal assembly (130) further comprises: a high-voltage cable (134) electrically connected to the power terminal (131) and led out of the charging base housing (1); and a sealing plug sleeved on the high-voltage cable (134) and inserted into the third insertion hole, The sealing plug is pressed between the high-voltage cable (134) and the inner wall surface of the third insertion hole (13) to achieve sealing therebetween.

28. The DC charging base of claim 26, wherein: The power terminal (131) comprises: a cylindrical portion (132) for mating with a counterpart power terminal; and a welding portion (133) connected to the rear end of the cylindrical portion (132) for welding to a high-voltage cable (134), The heat-conducting pad (5) is in thermal contact with the outer peripheral surface of the cylindrical portion (132) of the power terminal (131) and adjacent to the welding portion (133) of the power terminal (131).

29. The DC charging base of claim 28, wherein: A sealing ring mounting groove (135) is formed on the rear end of the cylindrical portion (132) of the power terminal (131), and the power terminal assembly (130) further comprises a sealing ring mounted in the sealing ring mounting groove (135), and the sealing ring is pressed between the cylindrical portion (132) of the power terminal (131) and the inner wall surface of the third insertion hole (13) of the charging base housing (1) to achieve sealing therebetween.

30. The DC charging station of claim 26, wherein: the charging station housing (1) has a plurality of third receptacles (13), the DC charging station has a plurality of power terminal assemblies (130) respectively inserted into the plurality of third receptacles (13); the insertion slot (14) is in communication with the plurality of third receptacles (13), the DC charging station low voltage module (100) includes a plurality of thermally conductive pads (5) respectively in thermal contact with power terminals (131) of the plurality of power terminal assemblies (130) and a plurality of temperature sensors (4) for respectively detecting temperatures of the plurality of power terminals (131).

31. The direct current charger of any one of claims 21-30, wherein: the charging station housing (1) is an integral injection molded piece.

Images