Power terminal, power terminal assembly and charging seat

Abstract

The utility model discloses a power terminal, a power terminal assembly and a charging seat. The power terminal comprises a cylindrical part which is used for matching with a matching power terminal; and the welding part is connected with the rear end of the cylindrical part and is used for being welded to a high-voltage cable. The welding part is in a flat shape and is provided with a first side and a second side which are opposite in the thickness direction of the welding part, the first side of the welding part is used for being welded to the high-voltage cable, a local protrusion is formed on the second side of the welding part, and the local protrusion is used for being in thermal contact with a heat conduction pad of a charging base. And the heat of the power terminal can be transmitted to the temperature sensor of the charging seat through the heat conduction pad. According to the utility model, the axial length of the power terminal of the charging seat is short, so that the size and the manufacturing cost of the power terminal are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric automobile charging technical field especially, relates to a kind of power terminal, the power terminal assembly comprising the power terminal of comprising and the charging seat of comprising the power terminal assembly. BACKGROUND

[0002] In prior art, the power terminal of the charging seat usually includes a cylindrical portion for mating with a mating power terminal and a welding end for welding to a high-voltage cable. A heat-conducting pad is usually in thermal contact with the outer circumferential surface of the cylindrical portion of the power terminal. However, since the heat-conducting pad is close to the rear portion of the charging seat housing, the length of the cylindrical portion of the power terminal needs to be lengthened so that the cylindrical portion of the power terminal extends into the rear portion of the charging seat housing to contact the heat-conducting pad. This results in a larger volume and higher cost of the power terminal.

[0003] In addition, in prior art, the PE terminal (or referred to as ground protection terminal) and the A-terminal (or referred to as negative terminal of low-voltage auxiliary power supply) in the direct-current charging seat are separately wired, which results in that the PE terminal and the A-terminal are not grounded together, i.e., the PE terminal and the A-terminal are not electrically interconnected together and grounded together. Therefore, in practical application, sometimes there is a large voltage difference between the direct-current charging seat and the direct-current charging gun when they are mated due to the PE terminal and the A-terminal not being grounded together, which results in a large current in the low-voltage auxiliary circuit connected with the A+ terminal or the A-terminal of the direct-current charging seat, and the low-voltage auxiliary circuit is easily burnt out.

[0004] In addition, in prior art, in order to improve the charging speed of new energy electric vehicles, the charging current needs to be increased, and the charging current is currently as high as 600A and will even be increased to 1000A in the future. When a large current flows through the power terminal of the charging seat, a large amount of heat will be generated, which will cause the temperature of the power terminal of the charging seat to rise sharply. 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 burnt out.

[0005] In addition, in prior art, in order to control the temperature rise of the power terminal, a lead frame is usually provided in the charging seat, and a low-voltage module is integrated on the lead frame. The low-voltage 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 prior art, the lead frame is large in size and needs to be pre-installed in the charging seat housing, which is very inconvenient to use. In addition, in prior art, in order to facilitate the installation of the lead frame, the charging seat housing needs to be designed in a split type, which results in a complex structure of the charging seat housing. 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 results in that the lead frame and the charging seat housing are more complex, the assembly is more difficult, and the cost is higher. Utility model content

[0006] The utility model discloses at least one aspect of the above-mentioned problems and defects existing in the prior art.

[0007] According to one aspect of the utility model, a power terminal for a charging base is provided. The power terminal comprises: a cylindrical portion for mating with a mating power terminal; and a welding portion connected to a rear end of the cylindrical portion for welding to a high-voltage cable. The welding portion is flat and has a first side and a second side opposite in a thickness direction thereof, the first side of the welding portion is for welding to the high-voltage cable, and a partial protrusion is formed on the second side of the welding portion, the partial protrusion is for thermal contact with a heat-conductive pad of the charging base, so that heat of the power terminal can be transferred to a temperature sensor of the charging base via the heat-conductive pad.

[0008] According to one exemplary embodiment of the utility model, the partial protrusion is adjacent to or connected to the rear end of the cylindrical portion of the power terminal.

[0009] According to another exemplary embodiment of the utility model, the power terminal is an integral machined part or an integral stamped part.

[0010] According to another exemplary embodiment of the utility model, the partial protrusion is semi-cylindrical. According to another aspect of the utility model, a power terminal assembly is provided. The power terminal assembly comprises: the aforementioned power terminal and a high-voltage cable. One end of the high-voltage cable is welded to the first side of the welding portion of the power terminal.

[0011] According to one exemplary embodiment of the utility model, the power terminal assembly further comprises: a sealing ring sleeved on the cylindrical portion of the power terminal, the sealing ring is adapted to be squeezed between the cylindrical portion of the power terminal and an inner wall surface of a charging base housing to achieve sealing therebetween.

[0012] According to another exemplary embodiment of the utility model, a sealing ring mounting groove is formed on the cylindrical portion of the power terminal, and the sealing ring is mounted in the sealing ring mounting groove.

[0013] According to another exemplary embodiment of the utility model, the power terminal assembly further comprises: a sealing plug sleeved on the high-voltage cable. The sealing plug is adapted to be squeezed between the high-voltage cable and an inner wall surface of a charging base housing to achieve sealing therebetween.

[0014] According to another aspect of the utility model, a charging base is provided. The charging base comprises: a charging base housing formed with a socket; and the aforementioned power terminal assembly inserted into the socket.

[0015] According to one exemplary embodiment of the present application, a plurality of insertion holes are formed in the charging base housing, and the charging base comprises a plurality of power terminal assemblies respectively inserted into the plurality of insertion holes.

[0016] According to another exemplary embodiment of the present application, an insertion slot is formed in the charging base housing and communicates with the insertion hole, and the charging base further comprises a low-voltage module for detecting the temperature of the power terminal, which is installed in the insertion slot of the charging base housing in a pluggable manner from the outside of the charging base housing.

[0017] According to another exemplary embodiment of the present application, the low-voltage module comprises an insulator, a heat-conducting pad assembled on the insulator for being in thermal contact with the partial protrusion of the power terminal, a temperature sensor arranged in the heat-conducting pad for detecting the temperature of the power terminal, and a conductive lead arranged in the insulator and electrically connected with the temperature sensor, the heat-conducting pad being in thermal contact with the partial protrusion of the power terminal to transfer the heat of the power terminal to the temperature sensor.

[0018] According to another exemplary embodiment of the present application, the insulator is directly injection molded on the conductive lead, so that the conductive lead and the insulator become an integral piece.

[0019] According to another exemplary embodiment of the present application, the conductive lead has a connecting end electrically connected with the temperature sensor and an external lead pin for being electrically connected with a connector located outside the charging base housing.

[0020] According to another exemplary embodiment of the present application, the insulator comprises a bracket portion adapted to be inserted into the insertion slot of the charging base housing and a counter portion adapted to be positioned outside the charging base housing, the heat-conducting pad and the temperature sensor being mounted on the bracket portion, the counter portion having an insertion cavity allowing the connector to be inserted, the external lead pin of the conductive lead extending into the insertion cavity to be electrically connected with the inserted connector.

[0021] According to another exemplary embodiment of the present application, a ring of sealing ring mounting grooves is formed on the outer peripheral surface of the bracket portion, and the low-voltage module further comprises a sealing ring mounted in the sealing ring mounting grooves, the sealing ring being adapted to be pressed between the bracket portion and the inner wall surface of the insertion slot of the charging base housing to realize sealing therebetween.

[0022] According to another exemplary embodiment of the present application, the bracket portion has a cover plate portion for covering the inlet of the slot of the charging base housing, and the insulator further comprises a plurality of buckles connected to the periphery of the cover plate portion, which are spaced apart around the periphery of the cover plate portion.

[0023] A plurality of protrusions are formed on the outer side of the peripheral wall of the slot of the charging base housing, which are spaced apart around the slot and respectively engage with the plurality of buckles, so as to lock the low-voltage module to the charging base housing.

[0024] According to another exemplary embodiment of the present application, the conductive lead wire comprises a positive lead wire and a negative lead wire respectively electrically connected to the positive and negative pins of the temperature sensor; and the outer connecting pins of the positive and negative lead wires extend into the insertion cavity of the mating portion for electrical connection with the inserted connector.

[0025] According to another exemplary embodiment of the present application, the connecting end of the positive lead wire is adapted to be pluggably electrically connected to the positive pin of the temperature sensor; and / or the connecting end of the negative lead wire is adapted to be pluggably electrically connected to the negative pin of the temperature sensor.

[0026] According to another exemplary embodiment of the present application, the connecting end of the positive lead wire is in the form of an elastic clip, which is adapted to clamp the positive pin of the temperature sensor; and / or the connecting end of the negative lead wire is in the form of an elastic clip, which is adapted to clamp the negative pin of the temperature sensor.

[0027] According to another exemplary embodiment of the present application, the low-voltage module comprises 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 being used for thermal contact with a plurality of power terminals respectively, and the plurality of temperature sensors being used for detecting the temperature of the plurality of power terminals respectively.

[0028] According to another exemplary embodiment of the present application, the conductive lead wire comprises a plurality of positive lead wires and a single negative lead wire; the connecting ends of the plurality of positive lead wires are respectively electrically connected to the positive pins of the plurality of temperature sensors, and the single negative lead wire has a plurality of connecting ends respectively electrically connected to the negative pins of the plurality of temperature sensors; the outer connecting pins of the plurality of positive lead wires and the single negative lead wire extend into the insertion cavity of the mating portion for electrical connection with the inserted connector.

[0029] According to another exemplary embodiment of the present application, the heat-conductive pad is in a block shape, and a recessed accommodating portion is formed on the insulator, and the heat-conductive pad is positioned and mounted into the accommodating portion; a mounting groove is formed in the heat-conductive pad, and the main body portion of the temperature sensor is inserted into the mounting groove of the heat-conductive pad, and the positive and negative electrode pins of the temperature sensor extend out of the heat-conductive pad.

[0030] According to another exemplary embodiment of the present application, the heat-conductive 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-conductive pad and the power terminal.

[0031] According to another exemplary embodiment of the present application, the charging base is a direct-current charging base, and a first socket and a second socket are formed in the charging base housing, and the socket is in communication with the first socket and the second socket; the charging base further comprises: a PE terminal assembly comprising a PE terminal and being inserted into the first socket; and an A-terminal assembly comprising an A-terminal and being inserted into the second socket. The low-voltage module further comprises: an electrical connector fixed into the insulator, and the electrical connector is in electrical contact with the PE terminal and the A-terminal at the same time, so as to electrically connect the A-terminal to the PE terminal.

[0032] According to another exemplary embodiment of the present application, the electrical connector comprises: a first contact portion in electrical contact with the PE terminal; a second contact portion in electrical contact with the A-terminal; and a connecting portion electrically connecting the first contact portion and the second contact portion, and the connecting portion is fixed into the insulator, and the first contact portion and the second contact portion are exposed out of the insulator.

[0033] According to another exemplary embodiment of the present application, the insulator is directly injection molded onto the electrical connector and the conductive lead, so that the insulator, the electrical connector and the conductive lead are integrated.

[0034] According to another exemplary embodiment of the present application, the electrical connector is an integrated stamping part.

[0035] According to another exemplary embodiment of the present application, the first contact portion comprises a pair of first elastic sheets for clamping the PE terminal; and / or the second contact portion comprises a pair of second elastic sheets for clamping the A-terminal.

[0036] According to another exemplary embodiment of the utility model, the insulator has a first locking portion abutting against the PE terminal to lock the PE terminal in the charging base shell, and / or the insulator has a second locking portion abutting against the A-terminal to lock the A-terminal in the charging base shell.

[0037] According to another exemplary embodiment of the utility model, the PE terminal assembly further comprises a grounding wire electrically connected to the PE terminal and led out of a first jack of the charging base shell, and a first sealing member injection molded on the PE terminal, the first sealing member being pressed between the PE terminal and an inner wall surface of the first jack to realize sealing therebetween.

[0038] According to another exemplary embodiment of the utility model, the A-terminal assembly further comprises a second sealing member injection molded on the A-terminal, the second sealing member being pressed between the A-terminal and an inner wall surface of the second jack to realize sealing therebetween.

[0039] According to another exemplary embodiment of the utility model, the axial direction of the jack, the axial direction of the first jack and the axial direction of the second jack are parallel to each other, the axial direction of the slot is perpendicular to the axial direction of the jack, and the low-voltage module is inserted into the slot along the radial direction of the jack.

[0040] According to another exemplary embodiment of the utility model, the charging base shell is an integral injection molding.

[0041] In the foregoing exemplary embodiments of the utility model, the axial length of the power terminal of the charging base is short, thereby reducing the volume and manufacturing cost of the power terminal.

[0042] In addition, in the foregoing exemplary embodiments of the utility model, the electrical connector in the low-voltage module can electrically interconnect the PE terminal and the A-terminal of the direct-current charging base together, thereby realizing common grounding of the PE terminal and the A-terminal, and effectively preventing the low-voltage auxiliary circuit of the direct-current charging base from being burnt out.

[0043] In addition, in the foregoing exemplary embodiments of the utility model, the low-voltage module not only has a small volume, but also can be directly inserted into the slot on the charging base shell from the outside of the charging base shell, which is very convenient to install and use.

[0044] In addition, in the foregoing exemplary embodiments of the utility model, the low-voltage module is integrated with a temperature sensor for detecting the temperature of the power terminal of the charging base, thereby preventing the charging base from being burnt out due to excessively high temperature.

[0045] Other objects and advantages of the present application will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating the principles of the application. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 FIG. 1 shows a perspective view of a charging base according to an exemplary embodiment of the present application;

[0047] Figure 2 FIG. 2 shows an exploded view of the charging base according to an exemplary embodiment of the present application;

[0048] Figure 3 FIG. 3 shows a perspective view of a low voltage module, a PE terminal, an A-terminal, and a power terminal according to an exemplary embodiment of the present application;

[0049] Figure 4 FIG. 4 shows an exploded view of the low voltage module and the power terminal according to an exemplary embodiment of the present application;

[0050] Figure 5 FIG. 5 shows a perspective view of the low voltage module, the PE terminal, and the A-terminal as viewed from a front side according to an exemplary embodiment of the present application;

[0051] Figure 6 FIG. 6 shows a perspective view of the low voltage module, the PE terminal, and the A-terminal as viewed from a rear side according to an exemplary embodiment of the present application;

[0052] Figure 7 FIG. 7 shows an exploded view of the low voltage module, the PE terminal, and the A-terminal according to an exemplary embodiment of the present application;

[0053] Figure 8 FIG. 8 shows a perspective view of the low voltage module according to an exemplary embodiment of the present application;

[0054] Figure 9 FIG. 9 shows an exploded view of the low voltage module according to an exemplary embodiment of the present application;

[0055] Figure 10 FIG. 10 shows another exploded view of the low voltage module according to an exemplary embodiment of the present application;

[0056] Figure 11 FIG. 11 shows a perspective view of a conductive lead and a temperature sensor of the low voltage module according to an exemplary embodiment of the present application;

[0057] Figure 12shows a perspective view of the power terminal of the charging base according to an exemplary embodiment of the present application;

[0058] Figure 13 shows a perspective view of the power terminal of the charging base according to an exemplary embodiment of the present application;

[0059] Figure 14 shows a perspective view of the power terminal of the charging base according to an exemplary embodiment of the present application;

[0060] Figure 15 shows a perspective view of the power terminal of the charging base according to an exemplary embodiment of the present application;

[0061] Figure 16 shows a perspective view of the power terminal of the charging base according to an exemplary embodiment of the present application;

[0062] Figure 17 shows a perspective view of the power terminal of the charging base according to an exemplary embodiment of the present application;

[0063] Figure 18 shows a perspective view of the power terminal of the charging base according to an exemplary embodiment of the present application; DETAILED DESCRIPTION

[0064] The technical solutions of the present application will be further described below in conjunction with 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 construed as a limitation of the present application.

[0065] 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 of the present application can be practiced without these specific details. In other instances, well-known structures and devices are not described in detail in order to simplify the drawings.

[0066] According to a general technical concept of this utility model, a power terminal for a charging dock is provided. The power terminal includes: a cylindrical portion for mating with a matching power terminal; and a welding portion connected to the rear end of the cylindrical portion for welding to a high-voltage cable. The welding portion is flat and has a first side and a second side opposite each other in its thickness direction. The first side of the welding portion is used for welding to the high-voltage cable, and a partial protrusion is formed on the second side of the welding portion for thermal contact with a thermal pad of the charging dock, so that the heat from the power terminal can be transferred to the temperature sensor of the charging dock via the thermal pad.

[0067] According to another general technical concept of this utility model, a power terminal assembly is provided. The power terminal assembly includes: the aforementioned power terminal and a high-voltage cable. One end of the high-voltage cable is soldered to a first side of the solder portion of the power terminal.

[0068] According to another general technical concept of this utility model, a charging dock is provided. The charging dock includes: a charging dock housing having a socket; and the aforementioned power terminal assembly, which is inserted into the socket.

[0069] Figure 15 A perspective view of the power terminal 131 of a charging dock according to an exemplary embodiment of the present invention is shown. Figure 16 Showing an axial cross-sectional view of the power terminal 131 of a charging dock according to an exemplary embodiment of the present invention; Figure 17 Showing a side view of the power terminal 131 of a charging dock according to an exemplary embodiment of the present invention;

[0070] Figure 18 Showing a side view of the power terminal assembly 130 of a charging dock according to an exemplary embodiment of the present invention.

[0071] like Figures 15 to 18 As shown, in an exemplary embodiment of this utility model, a power terminal 131 for a charging dock is disclosed. The power terminal 131 includes a cylindrical portion 132 and a welding portion 133. The cylindrical portion 132 is used to mate with a mating power terminal (not shown). The welding portion 133 is connected to the rear end of the cylindrical portion 132 and is used to weld to a high-voltage cable 134. The welding portion 133 is flat and has a first side and a second side opposite each other in its thickness direction. The first side of the welding portion 133 is used to weld to the high-voltage cable 134. A partial protrusion 133a is formed on the second side of the welding portion 133, which is used to interact with the thermal pad 5 of the charging dock (see [reference]). Figures 1 to 14 Thermal contact allows heat from the power terminal 131 to be transferred via the thermal pad 5 to the temperature sensor 4 of the charging dock (see...). Figures 1 to 14). In the illustrated embodiment, the partial protrusion 133a can be semi-cylindrical or other suitable shape.

[0072] In Figures 15 to 18 In the illustrated embodiment, since the partial protrusion 133a in thermal contact with the heat-conductive pad 5 is formed on the soldering portion 133 of the power terminal 131, it is not necessary to extend the cylindrical portion 132 of the power terminal 131 rearward, thereby being able to reduce the axial length of the power terminal 131, the volume of the power terminal 131 and the manufacturing cost.

[0073] As Figures 15 to 18 shown, in the illustrated embodiment, the partial protrusion 133a is adjacent to or connected with the rear end of the cylindrical portion 132 of the power terminal 131. However, the utility model is not limited to the illustrated embodiment, for example, the partial protrusion 133a can be spaced apart from the rear end of the cylindrical portion 132 of the power terminal 131 by a predetermined distance.

[0074] As Figures 15 to 18 shown, in the illustrated embodiment, the power terminal 131 is an integral machined part or an integral stamped part.

[0075] As Figures 15 to 18 shown, in another exemplary embodiment of the utility model, a power terminal assembly 130 is also disclosed. The power terminal assembly 130 comprises: a power terminal 131 and a high-voltage cable 134. One end of the high-voltage cable 134 is soldered to the first side of the soldering portion 133 of the power terminal 131.

[0076] As Figures 15 to 18 shown, in the illustrated embodiment, the power terminal assembly 130 further comprises a sealing ring (not shown) which is sleeved on the cylindrical portion 132 of the power terminal 131. The sealing ring is adapted to be pressed between the cylindrical portion 132 of the power terminal 131 and the inner wall surface of the socket 13 of the charging base housing 1 to achieve sealing therebetween.

[0077] As Figures 15 to 18 shown, in the illustrated embodiment, a sealing ring mounting groove 135 is formed on the cylindrical portion 132 of the power terminal 131, and the aforementioned sealing ring is mounted in the sealing ring mounting groove 135.

[0078] As Figures 15 to 18 shown, in the illustrated embodiment, the power terminal assembly further comprises a sealing plug (not shown) which is sleeved on the high-voltage cable 134, and the sealing plug is adapted to be pressed between the high-voltage cable 134 and the inner wall surface of the socket 13 of the charging base housing 1 to achieve sealing therebetween.

[0079] Figures 15 to 18A perspective view of a charging stand according to an exemplary embodiment of the present application is shown. Figure 1 An exploded view of a charging stand according to an exemplary embodiment of the present application is shown. Figure 2 A perspective view of a low voltage module 100, a PE terminal 111, an A-terminal 121 and a power terminal 131 according to an exemplary embodiment of the present application is shown.

[0080] Figure 3 An exploded view of a low voltage module 100 and a power terminal 131 according to an exemplary embodiment of the present application is shown. Figure 4 A perspective view of a low voltage module 100, a PE terminal 111 and an A-terminal 121 from a front side according to an exemplary embodiment of the present application is shown. Figure 5 A perspective view of a low voltage module 100, a PE terminal 111 and an A-terminal 121 from a rear side according to an exemplary embodiment of the present application is shown. Figure 6 An exploded view of a low voltage module 100, a PE terminal 111 and an A-terminal 121 according to an exemplary embodiment of the present application is shown. Figure 7 A perspective view of a low voltage module 100 according to an exemplary embodiment of the present application is shown. Figure 8 An exploded view of a low voltage module 100 according to an exemplary embodiment of the present application is shown. Figure 9 Another exploded view of a low voltage module 100 according to an exemplary embodiment of the present application is shown. Figure 10 A perspective view of a conductive lead 6 and a temperature sensor 4 of a low voltage module 100 according to an exemplary embodiment of the present application is shown. Figure 11 A perspective view of a low voltage module 100 according to an exemplary embodiment of the present application is shown. Figure 12 A perspective view of an electrical connection 3 of a low voltage module 100 according to an exemplary embodiment of the present application is shown. Figure 13 A view of an electrical connection 3 of a low voltage module 100 in electrical contact with a PE terminal 111 and an A-terminal 121 according to an exemplary embodiment of the present application is shown.

[0081] As Figure 14 shown, in another exemplary embodiment of the present application, a charging stand is disclosed. The charging stand comprises a charging stand housing 1 and the aforementioned power terminal assembly 130. The charging stand housing 1 is formed with a socket 13. The power terminal assembly 130 is inserted into the socket 13 of the charging stand housing 1.

[0082] As Figures 1 to 18As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13.

[0083] As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13. Figures 1 to 18 As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13.

[0084] As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13. Figures 1 to 18 As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13.

[0085] As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13. Figures 1 to 18 As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13.

[0086] As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13. Figures 1 to 18 As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13.

[0087] As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13. Figures 1 to 18 As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13.

[0088] As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13. Figures 1 to 18 As shown in the illustrated embodiment, a plurality of receptacles 13 are formed in the charging base housing 1, and the charging base includes a plurality of power terminal assemblies 130 respectively inserted into the plurality of receptacles 13.

[0089] AsFigures 1 to 18 As shown in the illustrated embodiment, the bracket portion 21 has a cover plate portion 23 for covering the inlet of the 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 periphery of the cover plate portion 23. 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, which are spaced apart around the slot 14 and respectively engage with the plurality of buckles 25 to lock the low-voltage module 100 to the charging base housing 1.

[0090] 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 pin 41 and the negative pin 42 of the temperature sensor 4 respectively. The outer pins 6b of the positive lead 61 and the negative lead 62 extend into the insertion cavity 20 of the counter portion 22 for electrical connection with the inserted connector. Figures 1 to 18

[0091] As shown in the illustrated embodiment, the connection end 6a of the positive lead 61 is adapted to be plug-in electrically connected to the positive pin 41 of the temperature sensor 4. The connection end 6a of the negative lead 62 is adapted to be plug-in electrically connected to the negative pin 42 of the temperature sensor 4. Figures 1 to 18

[0092] As shown in the illustrated embodiment, the connection end 6a of the positive lead 61 is in the form of an elastic clip adapted to clamp the positive pin 41 of the temperature sensor 4. The connection end 6a of the negative lead 62 is in the form of an elastic clip adapted to clamp the negative pin 42 of the temperature sensor 4. However, the utility model is not limited to the illustrated embodiment, for example, the connection end 6a of the positive lead 61 can be welded or crimped to the positive pin 41 of the temperature sensor 4, and the connection end 6a of the negative lead 62 can be welded or crimped to the negative pin 42 of the temperature sensor 4. Figures 1 to 18

[0093] As shown in the illustrated embodiment, the 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 respectively in thermal contact with the plurality of power terminals 131, and the plurality of temperature sensors 4 are respectively arranged to detect the temperature of the plurality of power terminals 131. Figures 1 to 18

[0094] Figures 1 to 18 ​​​​​As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector.

[0095] As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector. Figures 1 to 18 As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector.

[0096] As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector. Figures 1 to 18 As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector.

[0097] Figures 1 to 18 As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector.

[0098] As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector. Figures 1 to 18 As shown in the illustrated embodiment, the conductive lead 6 includes a plurality of positive lead wires 61 and a single negative lead wire 62. The connection ends 6a of the plurality of positive lead wires 61 are respectively electrically connected to the positive pins 41 of the plurality of temperature sensors 4, and the single negative lead wire 62 has a plurality of connection ends 6a respectively electrically connected to the negative pins 42 of the plurality of temperature sensors 4. The external pins 6b of the plurality of positive lead wires 61 and the external pin 6b of the single negative lead wire 62 extend into the insertion cavity 20 of the counter-arrangement portion 22 for electrical connection with the inserted connector.​

[0099] like Figures 1 to 18 As shown in the illustrated embodiment, the insulator 2 is directly injection molded onto the electrical connector 3 and the conductive lead 6, making the insulator 2, the electrical connector 3, and the conductive lead 6 a single unit.

[0100] like Figures 1 to 18 As shown in the illustrated embodiment, the electrical connector 3 is a one-piece stamped part.

[0101] like Figures 1 to 18 As 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.

[0102] like Figures 1 to 18 As shown in the illustrated embodiment, the insulator 2 has a first locking portion 210. The first locking portion 210 abuts against the PE terminal 111 to lock the PE terminal 111 in the charging housing 1. The insulator 2 also has a second locking portion 220. The second locking portion 220 abuts against the A- terminal 121 to lock the A- terminal 121 in the charging housing 1.

[0103] like Figures 1 to 18 As shown, in the illustrated embodiment, the PE terminal assembly 110 further includes a grounding wire (not shown) and a first seal 112. The grounding wire is electrically connected to the PE terminal 111 and extends from the first socket 11 of the charging housing 1. The first seal 112 is injection molded onto the PE terminal 111. The first seal 112 is pressed between the inner wall surfaces of the PE terminal 111 and the first socket 11 to achieve a seal between them.

[0104] like Figures 1 to 18 As shown, in the illustrated embodiment, the A-terminal assembly 120 further includes a second seal 122, which is injection molded onto the A-terminal 121. The second seal 122 is pressed between the inner wall surfaces of the A-terminal 121 and the second socket 12 to achieve a seal between them.

[0105] like Figures 1 to 18 As shown in the illustrated embodiment, the axial direction of the socket 13, the axial direction of the first socket 11, and the axial direction of the second socket 12 are parallel to each other, the axial direction of the slot 14 is perpendicular to the axial direction of the socket 13, and the low-voltage module 100 is inserted into the slot 14 radially along the socket 13.

[0106] like ​ As shown in the illustrated embodiment, the charging base housing 1 is a one-piece injection molded part.

[0107] Those skilled in the art can understand that the above-described embodiments are exemplary, and those skilled in the art can make improvements on them, and the structures described in various embodiments can be freely combined without structural or principle conflicts, and these changes shall fall within the protection scope of the present application.

[0108] Although the present application is described in conjunction with the drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present application, and cannot be understood as a limitation of the present application.

[0109] Although some embodiments of the general concept of the present application have been shown and described, those of ordinary skill in the art will understand that changes can be made to these embodiments without departing from the principles and spirit of the general concept of the present application, and the scope of the present application is defined by the claims and their equivalents.

[0110] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. Additionally, any reference signs in the claims should not be construed as limiting the scope of the present application.

Claims

1. A power terminal for a charging station, characterized in that, The power terminal includes: a cylindrical portion (132) for mating with a counterpart power terminal; a welding portion (133) connected to a rear end of the cylindrical portion (132) for welding to a high-voltage cable (134), the welding portion (133) is flat and has a first side and a second side opposite in the thickness direction thereof, the first side of the welding portion (133) being for welding to the high-voltage cable (134), a partial protrusion (133a) is formed on the second side of the welding portion (133), the partial protrusion (133a) being for thermal contact with a heat-conductive pad (5) of a charging base so that heat of the power terminal (131) can be transferred to a temperature sensor (4) of the charging base via the heat-conductive pad (5).

2. The power terminal according to claim 1, wherein: the partial protrusion (133a) is adjacent to or connected to a rear end of the cylindrical portion (132) of the power terminal (131).

3. The power terminal of claim 1, wherein: the power terminal (131) is an integral machined part or an integral stamped part.

4. The power terminal of claim 1, wherein: the partial protrusion (133a) is semi-cylindrical.

5. A power terminal assembly characterized by, comprising: the power terminal (131) according to any one of claims 1-4; and a high-voltage cable (134) having one end welded to the first side of the welding portion (133) of the power terminal (131).

6. The power terminal assembly of claim 5, wherein, further comprising: a sealing ring fitted on the cylindrical portion (132) of the power terminal (131), the sealing ring being adapted to be pressed between the cylindrical portion (132) of the power terminal (131) and an inner wall surface of a charging base housing to achieve sealing therebetween.

7. The power terminal assembly according to claim 5, wherein: a sealing ring mounting groove (135) is formed on the cylindrical portion (132) of the power terminal (131), the sealing ring being mounted in the sealing ring mounting groove (135).

8. The power terminal assembly of claim 5, wherein, further comprising: a sealing plug fitted on the high-voltage cable (134), the sealing plug being adapted to be pressed between the high-voltage cable and an inner wall surface of a charging base housing to achieve sealing therebetween.

9. A charging station, characterized in that comprising: a charging base housing (1) formed with a receptacle (13); and the power terminal assembly (130) according to any one of claims 5-8 being inserted into the receptacle (13).

10. The charging base according to claim 9, wherein: a plurality of receptacles (13) are formed in the charging base housing (1), the charging base comprising a plurality of power terminal assemblies (130) respectively inserted into the plurality of receptacles (13).

11. The charging base according to claim 9, wherein: an insertion slot (14) is formed on the charging base housing (1) and communicates with the receptacle (13); the charging base further comprises a low-voltage module (100) for detecting a temperature of the power terminal (131), the low-voltage module (100) being mounted in the insertion slot (14) on the charging base housing (1) in a pluggable manner from outside of the charging base housing (1).

12. The charging base of claim 11, wherein: the low-voltage module (100) comprises: an insulator (2); a thermally conductive pad (5) assembled to the insulator (2) for thermal contact with the partial protrusion (133a) of the power terminal (131); a temperature sensor (4) disposed in the thermally conductive pad (5) for detecting the temperature of the power terminal (131); and an electrically conductive lead (6) disposed in the insulator (2) and electrically connected with the temperature sensor (4), the thermally conductive pad (5) is in thermal contact with the partial protrusion (133a) of the power terminal (131) to transfer the heat of the power terminal (131) to the temperature sensor (4).

13. The charging base of claim 12, wherein: the insulator (2) is directly injection molded onto the electrically conductive lead (6) such that the electrically conductive lead (6) and the insulator (2) are integrated as one piece.

14. The charging base of claim 12, wherein: the electrically conductive lead (6) has a connection end (6a) electrically connected with the temperature sensor (4) and an external lead pin (6b) for electrical connection with a connector located outside the charging base housing (1).

15. The charging base of claim 14, wherein: the insulator (2) comprises: a bracket portion (21) adapted to be inserted into a slot (14) of the charging base housing (1); and a counterpart portion (22) adapted to be positioned outside the charging base housing (1), the thermally conductive pad (5) and the temperature sensor (4) are mounted to the bracket portion (21), the counterpart portion (22) has an insertion cavity (20) allowing insertion of the connector, and the external lead pin (6b) of the electrically conductive lead (6) extends into the insertion cavity (20) to electrically connect with the inserted connector.

16. The charging base of claim 15, wherein: a ring of seal ring mounting grooves (24) is formed on an outer peripheral surface of the bracket portion (21), and the low-voltage module (100) further comprises a seal ring (26) mounted in the seal ring mounting grooves (24), the seal ring (26) being adapted to be pressed between the bracket portion (21) and an inner wall surface of the slot (14) of the charging base housing (1) to achieve sealing therebetween.

17. The charging base of claim 15, wherein: the bracket portion (21) has a cover plate portion (23) for covering an entrance of the slot (14) of the charging base housing (1), the insulator (2) further comprises a plurality of buckles (25) connected with a periphery of the cover plate portion (23), the plurality of buckles (25) being distributed at intervals around an outer periphery of the cover plate portion (23); a plurality of protrusion portions (15) are formed on an outer side of a peripheral wall of the slot (14) of the charging base housing (1), the plurality of protrusion portions (15) being distributed at intervals around the slot (14) and respectively engaging with the plurality of buckles (25) to lock the low-voltage module (100) to the charging base housing (1).

18. The charging base of claim 15, wherein: the conductive lead (6) comprises a positive lead (61) and a negative lead (62) electrically connected to the positive pin (41) and the negative pin (42) of the temperature sensor (4), respectively; and the outer lead (6b) of the positive lead (61) and the negative lead (62) extends into the insertion cavity (20) of the mating portion (22) for electrically connecting with the inserted connector.

19. The charging base of claim 18, wherein: the connection end (6a) of the positive lead (61) is adapted to be pluggably electrically connected with the positive pin (41) of the temperature sensor (4); and / or the connection end (6a) of the negative lead (62) is adapted to be pluggably electrically connected with the negative pin (42) of the temperature sensor (4).

20. The charging base of claim 19, wherein: the connection end (6a) of the positive lead (61) is in the form of an elastic clip adapted to clamp the positive pin (41) of the temperature sensor (4); and / or the connection end (6a) of the negative lead (62) is in the form of an elastic clip adapted to clamp the negative pin (42) of the temperature sensor (4).

21. The charging base of claim 18, wherein: the low-voltage module (100) comprises a plurality of thermally conductive pads (5) for being in thermal contact with a plurality of power terminals (131), respectively, and a plurality of temperature sensors (4) disposed in the plurality of thermally conductive pads (5), respectively, for detecting temperatures of the plurality of power terminals (131), respectively.

22. The charging base of claim 21, wherein: the conductive lead (6) comprises 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, and the single negative lead (62) has a plurality of connection ends (6a) electrically connected to the negative pins (42) of the plurality of temperature sensors (4), respectively; the outer leads (6b) of the plurality of positive leads (61) and the single negative lead (62) extend into the insertion cavity (20) of the mating portion (22) for electrically connecting with the inserted connector.

23. The charging base of claim 18, wherein: the thermally conductive pad (5) is in the form of a block, and a recessed accommodating portion (205) is formed on the insulator (2) for positioning and mounting the thermally conductive pad (5) into the accommodating portion (205); an installation groove (51) is formed in the thermally conductive pad (5), the main body portion of the temperature sensor (4) is inserted into the installation groove (51) of the thermally conductive pad (5), and the positive pin (41) and the negative pin (42) of the temperature sensor (4) extend out of the thermally conductive pad (5).

24. The charging base of claim 23, wherein: The heat-conducting pad (5) has an arc-shaped contact surface (5a) adapted to abut against the outer circumferential surface of the power terminal (131) to increase the thermal contact area between the heat-conducting pad (5) and the power terminal (131).

25. The charging base of claim 12, wherein: The charging base is a direct-current charging base, and a first insertion hole (11) and a second insertion hole (12) are formed in the charging base housing (1), and the insertion slot (14) communicates with the first insertion hole (11) and the second insertion hole (12); The charging base further comprises: a PE terminal assembly (110) comprising a PE terminal (111) and being inserted into the first insertion hole (11); and an A-terminal assembly (120) comprising an A-terminal (121) and being inserted into the second insertion hole (12); The low-voltage module (100) further comprises: an electrical connector (3) fixed in the insulator (2), The electrical connector (3) is in electrical contact with the PE terminal (111) and the A-terminal (121) at the same time to electrically connect the A-terminal (121) to the PE terminal (111).

26. The charging base of claim 25, wherein: The electrical connector (3) comprises: a first contact portion (31) in electrical contact with the PE terminal (111); a second contact portion (32) in electrical contact with the A-terminal (121); and a connecting portion (30) electrically connecting the first contact portion (31) and the second contact portion (32), The connecting portion (30) is fixed in the insulator (2), and the first contact portion (31) and the second contact portion (32) are externally exposed from the insulator (2).

27. The charging base of claim 25, wherein: The insulator (2) is directly injection molded on the electrical connector (3) and the conductive lead (6), so that the insulator (2), the electrical connector (3) and the conductive lead (6) are integrated.

28. The charging station of claim 26, wherein: The electrical connector (3) is an integrated stamping part.

29. The charging base of claim 26, wherein: The first contact portion (31) comprises a pair of first elastic pieces for clamping the PE terminal (111); and / or The second contact portion (32) comprises a pair of second elastic pieces for clamping the A-terminal (121).

30. The charging base of claim 25, wherein: The insulator (2) has a first locking portion (210) abutting against the PE terminal (111) to lock the PE terminal (111) in the charging base housing (1); and / or The insulator (2) has a second locking portion (220) abutting against the A-terminal (121) to lock the A-terminal (121) in the charging base housing (1).

31. The charging base of claim 25, wherein: The PE terminal assembly (110) further comprises: a grounding wire electrically connected to the PE terminal (111) and led out from the first jack (11) of the charging base shell (1); and a first sealing member (112) injection molded on the PE terminal (111), The first sealing member (112) is pressed between the PE terminal (111) and the inner wall surface of the first jack (11) to achieve sealing therebetween.

32. The charging base of claim 25, wherein: The A-terminal assembly (120) further comprises: a second sealing member (122) injection molded on the A-terminal (121), The second sealing member (122) is pressed between the A-terminal (121) and the inner wall surface of the second jack (12) to achieve sealing therebetween.

33. The charging base of claim 25, wherein: The axial direction of the jack (13), the axial direction of the first jack (11) and the axial direction of the second jack (12) are parallel to each other, the axial direction of the slot (14) is perpendicular to the axial direction of the jack (13), and the low-voltage module (100) is inserted into the slot (14) along the radial direction of the jack (13).

34. The charging station of any one of claims 9-33, wherein: The charging base shell (1) is an integral injection molding.

Images