Charging seat heating element, lead frame assembly and charging seat

Abstract

The invention discloses a charging base heating piece, a lead frame assembly and a charging base. The charging seat heating element is suitable for being inserted into a slot of a shell of a charging seat and is suitable for being electrically connected to a lead frame in the shell of the charging seat. The charging seat heating piece is suitable for being electrically connected to a power source through a first lead in the lead frame, and the charging seat heating piece generates heat when powered on so as to heat the charging seat. According to the invention, after charging of the new energy vehicle is finished, the charging seat heating element can heat the charging seat, so that the charging seat and the charging gun are prevented from being frozen, and the charging gun can be pulled out after charging.

Description

Technical Field

[0001] The invention relates to a charging seat heating element, comprising a lead frame of the charging seat heating element and a charging seat comprising the lead frame. Background Art

[0002] With the rapid development of new energy vehicles, more and more new energy vehicle manufacturers have set their sights on cold regions, such as Northern Europe, Russia, Canada and other regions. However, in these cold regions, new energy vehicles will be affected by extreme cold weather. After charging, the charging gun and the charging base will freeze due to condensation or rain and snow and cannot be pulled out normally. This will affect the normal use of new energy vehicles in these cold regions. Summary of the invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, a charging base heater is provided. The charging base heater is adapted to be inserted into a slot of a housing of the charging base and to be electrically connected to a lead frame in the housing of the charging base. The charging base heater is adapted to be electrically connected to a power source via a first lead in the lead frame, and the charging base heater generates heat when powered on to heat the charging base.

[0005] According to an exemplary embodiment of the present invention, the charging base heater is made of an electrically conductive and thermally conductive material.

[0006] According to another exemplary embodiment of the present invention, the charging base heater is an integral injection molded part formed of an electrically conductive and thermally conductive injection molded material.

[0007] According to another exemplary embodiment of the present invention, the charging base heater includes: a main body portion adapted to be inserted into a slot of the housing; and a plurality of connection portions adapted to be electrically connected to a plurality of first leads of the lead frame, respectively.

[0008] According to another exemplary embodiment of the present invention, the connection portion is columnar and has a threaded hole formed therein, so that the connection portion can be mechanically and electrically connected to the first connection end of the first lead wire through a threaded connection.

[0009] According to another exemplary embodiment of the present invention, the main body portion is in the shape of a cylinder with an opening, and the main body portion has two end portions which are opposite to each other in its circumferential direction and are respectively located on both sides of the opening; the main body portion has a front side and a rear side which are opposite to each other in its axial direction, and the connecting portion is connected to the rear side of the main body portion and extends rearward from the rear side of the main body portion along the axial direction.

[0010] According to another exemplary embodiment of the present invention, a plurality of axially extending grooves are respectively formed on the front and rear sides of the body portion, and the grooves on the front side of the body portion and the grooves on the rear side of the body portion are alternately arranged in the circumferential direction of the body portion.

[0011] According to another exemplary embodiment of the present invention, the charging seat heating element includes three connecting parts, the first and second of the three connecting parts are respectively connected to the rear sides of the two ends of the main body, and the third of the three connecting parts is connected to the rear side of the middle part of the main body opposite to the opening.

[0012] According to another exemplary embodiment of the present invention, the first and second of the three connection parts are used to be electrically connected to one of the positive and negative electrodes of the power supply at the same time, and the third of the three connection parts is used to be electrically connected to the other of the positive and negative electrodes of the power supply.

[0013] According to another exemplary embodiment of the present invention, a positioning key is formed on the connecting portion, which protrudes radially along the main body portion and extends axially along the main body portion for a predetermined length, and the positioning key is suitable for engaging with a positioning groove in the shell to position the charging base heater in the shell.

[0014] According to another aspect of the present invention, a lead frame assembly is provided, comprising: a lead frame including a plurality of leads and an insulator injection-molded onto the plurality of leads; and the charging base heater mechanically and electrically connected to a first lead of the plurality of leads.

[0015] According to an exemplary embodiment of the present invention, the first lead wire has a first connection end exposed from the insulator, and the connection portion of the charging stand heater is mechanically and electrically connected to the first connection end.

[0016] According to another exemplary embodiment of the present invention, the first connection end is plate-shaped, the connection portion of the charging base heater is column-shaped, and one end of the connection portion is mechanically and electrically connected to the first connection end.

[0017] According to another exemplary embodiment of the present invention, a connection hole is formed on the first connection end of the first lead, and a threaded hole corresponding to the connection hole is formed on the connection portion of the charging seat heater. The lead frame assembly further includes: a threaded connector that passes through the connection hole and is threadedly connected to the threaded hole to fasten the connection portion to the first connection end of the first lead.

[0018] According to another exemplary embodiment of the present invention, the lead frame includes a plurality of first lead wires, and the plurality of connection portions of the charging stand heater are mechanically and electrically connected to first connection ends of the plurality of first lead wires, respectively.

[0019] According to another exemplary embodiment of the present invention, the lead frame includes three first leads, and the three connecting parts of the charging seat heater are respectively mechanically and electrically connected to the first connecting ends of the three first leads; the first and second of the three first leads are used to be electrically connected to one of the positive and negative poles of a power source, and the third of the three first leads is used to be electrically connected to the other of the positive and negative poles of the power source.

[0020] According to another exemplary embodiment of the present invention, a through hole is formed on the lead frame to allow the charging terminal of the charging seat to pass through. The lead frame assembly also includes: a temperature detection module installed on the lead frame to detect the temperature of the charging terminal passing through the lead frame.

[0021] According to another exemplary embodiment of the present invention, the temperature detection module includes: a thermal pad mounted on an insulator of the lead frame; and a temperature sensor disposed in the thermal pad, wherein the thermal pad is suitable for thermally contacting a charging terminal passing through the lead frame to transfer heat from the charging terminal to the temperature sensor.

[0022] According to another exemplary embodiment of the present invention, the plurality of leads of the lead frame further include a second lead having a second connection end exposed from the insulator, and the second connection end of the second lead is electrically connected to the temperature sensor.

[0023] According to another exemplary embodiment of the present invention, the multiple leads of the lead frame also include a third lead having a third connection end exposed from the insulator, and the third connection end of the third lead is used to electrically connect to the signal terminal of the charging base.

[0024] According to another exemplary embodiment of the present invention, the plurality of leads of the lead frame respectively have pins exposed from the insulator, and the pins of the plurality of leads are arranged in a row and are suitable for being inserted into a low voltage connector to be electrically connected to the low voltage connector.

[0025] According to another aspect of the present invention, a charging stand is provided, comprising: a housing formed with a slot; and the aforementioned lead frame assembly installed in the housing, wherein a charging stand heating element of the lead frame assembly is inserted into the slot of the housing.

[0026] According to an exemplary embodiment of the present invention, the charging seat also includes: a charging terminal, which is arranged in the shell and passes through the lead frame of the lead frame assembly; a rear cover, which is installed on the rear end of the shell to close the rear port of the shell; and a charging cable, which passes through the rear cover and is electrically connected to the rear end of the charging terminal, and a mating part is formed on the rear cover, and the pins of the multiple leads of the lead frame extend into the inner cavity of the mating part, and the mating part and the pins of the multiple leads together constitute a mating connector suitable for mating with a low-voltage connector.

[0027] According to another exemplary embodiment of the present invention, the charging base further includes: a signal terminal, which is arranged in the shell; and a grounding protection terminal, which is arranged in the shell. The charging base heater is in the shape of a cylinder with an opening, and the charging terminal, the signal terminal and the grounding protection terminal are located in a space surrounded by the charging base heater; the front ends of the charging terminal, the signal terminal and the grounding protection terminal are located in the front port of the shell, and are used to mate with the charging gun inserted into the front port of the shell.

[0028] According to another exemplary embodiment of the present invention, the temperature detection module of the lead frame assembly is in thermal contact with the charging terminal for detecting the temperature of the charging terminal; the charging seat heater is electrically connected to a first lead among the multiple leads, the temperature sensor of the temperature detection module is electrically connected to a second lead among the multiple leads, and the signal terminal is electrically connected to a third lead among the multiple leads.

[0029] According to another exemplary embodiment of the present invention, a positioning groove is formed in the shell, and the positioning groove is engaged with a positioning key on the connecting portion of the charging base heater to position the charging base heater in the shell.

[0030] In the aforementioned exemplary embodiments according to the present invention, after the new energy vehicle is charged, the charging seat heating element can heat the charging seat to ensure that the charging seat and the charging gun will not be frozen, so that the charging gun can be unplugged after charging is completed.

[0031] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A perspective schematic diagram showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 2 An exploded schematic diagram showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 3A perspective schematic diagram showing a lead frame assembly according to an exemplary embodiment of the present invention when viewed from the rear side; Figure 4 A cross-sectional view showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 5 An exploded cross-sectional view showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 6 A perspective schematic diagram showing a charging stand heating element according to an exemplary embodiment of the present invention; Figure 7 A perspective schematic diagram showing a lead frame according to an exemplary embodiment of the present invention when viewed from the front; Figure 8 A perspective schematic diagram showing a lead frame according to an exemplary embodiment of the present invention when viewed from the back; Fig. 9 An exploded schematic diagram showing a temperature detection module according to an exemplary embodiment of the present invention; Fig.10 A perspective schematic diagram showing a charging terminal, a signal terminal and a ground protection terminal of a lead frame assembly and a charging stand according to an exemplary embodiment of the present invention, wherein a charging stand heating element is not shown; Fig.11 A perspective schematic diagram showing a lead frame assembly and a charging terminal, a signal terminal and a ground protection terminal of a charging base according to an exemplary embodiment of the present invention; Fig.12 A schematic diagram showing a plurality of leads in a lead frame according to an exemplary embodiment of the present invention; Fig.13 An exploded schematic diagram showing a housing of a charging stand and a heating element of the charging stand according to an exemplary embodiment of the present invention; Fig.14 A schematic diagram showing the assembly of a housing of a charging stand and a heating element of the charging stand according to an exemplary embodiment of the present invention; Fig.15 A schematic diagram showing an assembly of a housing and a lead frame assembly of a charging stand according to an exemplary embodiment of the present invention; Fig.16 A perspective schematic diagram showing a charging stand according to an exemplary embodiment of the present invention; Fig.17 An exploded schematic diagram of a charging stand according to an exemplary embodiment of the present invention is shown. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further specifically described below by examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as a limitation of the present invention.

[0034] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0035] According to an overall technical concept of the present invention, a charging seat heater is provided. The charging seat heater is suitable for being inserted into a slot of a housing of the charging seat and is suitable for being electrically connected to a lead frame in the housing of the charging seat. The charging seat heater is suitable for being electrically connected to a power source via a first lead in the lead frame, and the charging seat heater generates heat when powered on to heat the charging seat.

[0036] According to another general technical concept of the present invention, a lead frame assembly is provided, comprising: a lead frame including a plurality of leads and an insulator injection-molded onto the plurality of leads; and the aforementioned charging stand heater mechanically and electrically connected to a first lead of the plurality of leads.

[0037] According to another general technical concept of the present invention, a charging stand is provided, which includes: a housing formed with a slot; and the aforementioned lead frame assembly installed in the housing, wherein a charging stand heating element of the lead frame assembly is inserted into the slot of the housing.

[0038] Figure 1 A perspective schematic diagram showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 2 An exploded schematic diagram showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 3 A perspective schematic diagram showing a lead frame assembly according to an exemplary embodiment of the present invention when viewed from the rear side; Figure 4 A cross-sectional view showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 5 An exploded cross-sectional view showing a lead frame assembly according to an exemplary embodiment of the present invention; Figure 6 A three-dimensional schematic diagram showing a charging stand heating element 1 according to an exemplary embodiment of the present invention; Figure 7 A perspective schematic diagram showing a lead frame 2 according to an exemplary embodiment of the present invention when viewed from the front; Figure 8 A perspective schematic diagram showing a lead frame 2 according to an exemplary embodiment of the present invention when viewed from the back; Fig. 9 An exploded schematic diagram showing a temperature detection module 24 according to an exemplary embodiment of the present invention; Fig.10 A perspective schematic diagram showing a charging terminal 41, a signal terminal 42 and a ground protection terminal 43 of a lead frame assembly and a charging stand according to an exemplary embodiment of the present invention, wherein the charging stand heater 1 is not shown; Fig.11 A perspective schematic diagram showing a charging terminal 41 , a signal terminal 42 , and a ground protection terminal 43 of a lead frame assembly and a charging stand according to an exemplary embodiment of the present invention; Fig.12 A schematic diagram showing a plurality of leads in a lead frame 2 according to an exemplary embodiment of the present invention; Fig.13 An exploded schematic diagram showing a housing 5 of a charging stand and a heating element 1 of the charging stand according to an exemplary embodiment of the present invention; Fig.14 A schematic diagram showing the assembly of a housing 5 of a charging stand and a heating element 1 of the charging stand according to an exemplary embodiment of the present invention; Fig.15 A schematic diagram showing an assembly of a housing 5 and a lead frame assembly of a charging stand according to an exemplary embodiment of the present invention; Fig.16 A perspective schematic diagram showing a charging stand according to an exemplary embodiment of the present invention; Fig.17 An exploded schematic diagram of a charging stand according to an exemplary embodiment of the present invention is shown.

[0039] like Figures 1 to 17 As shown, in an exemplary embodiment of the present invention, a charging seat heater 1 is disclosed. The charging seat heater 1 is suitable for being inserted into a slot 51 of a housing 5 of the charging seat and is suitable for being electrically connected to a lead frame 2 in the housing 5 of the charging seat. The charging seat heater 1 is suitable for being electrically connected to a power source (not shown) via a first lead 21 in the lead frame 2, and the charging seat heater 1 generates heat when powered on to heat the charging seat.

[0040] like Figures 1 to 17 As shown, in the illustrated embodiment, the charging base heater 1 is made of an electrically conductive and thermally conductive material. For example, the charging base heater 1 can be an integral injection molded part formed of an electrically conductive and thermally conductive injection molded material.

[0041] like Figures 1 to 17 As shown, in the illustrated embodiment, the charging stand heater 1 includes: a main body 10 and a plurality of connecting parts 11. The main body 10 is suitable for being inserted into the slot 51 of the housing 5. The plurality of connecting parts 11 are suitable for being electrically connected to the plurality of first leads 21 of the lead frame 2, respectively.

[0042] like Figures 1 to 17As shown, in the illustrated embodiment, the connection portion 11 is columnar and has a threaded hole 13 formed therein, so that the connection portion 11 can be mechanically and electrically connected to the first connection end 21 a of the first lead 21 through the threaded connector 3 .

[0043] like Figures 1 to 17 As shown, in the embodiment shown in the figure, the main body 10 is in a cylindrical shape with an opening 101, and the main body 10 has two end portions 10a which are opposite to each other in the circumferential direction and are respectively located on both sides of the opening 101. The main body 10 has a front side and a rear side which are opposite to each other in the axial direction, and the connecting portion 11 is connected to the rear side of the main body 10 and extends rearwardly from the rear side of the main body 10 in the axial direction.

[0044] like Figures 1 to 17 As shown, in the illustrated embodiment, a plurality of axially extending grooves 14 are respectively formed on the front and rear sides of the main body portion 10, and the grooves 14 on the front side of the main body portion 10 and the grooves 14 on the rear side of the main body portion 10 are alternately arranged in the circumferential direction of the main body portion 10.

[0045] like Figures 1 to 17 As shown, in the illustrated embodiment, the charging seat heating element 1 includes three connecting parts 11, the first and second of the three connecting parts 11 are respectively connected to the rear sides of the two end parts 10a of the main body part 10, and the third of the three connecting parts 11 is connected to the rear side of the middle part 10b of the main body part 10 opposite to the opening 101.

[0046] like Figures 1 to 17 As shown, in the illustrated embodiment, the first and second of the three connection parts 11 are used to electrically connect to one of the positive and negative poles of the power supply at the same time, and the third of the three connection parts 11 is used to electrically connect to the other of the positive and negative poles of the power supply.

[0047] like Figures 1 to 17 As shown, in the illustrated embodiment, a positioning key 12 is formed on the connecting portion 11, which protrudes radially along the main body portion 10 and extends axially along the main body portion 10 to a predetermined length. The positioning key 12 is suitable for engaging with the positioning groove 52 in the shell 5 to position the charging base heating element 1 in the shell 5.

[0048] like Figures 1 to 17 As shown, in another exemplary embodiment of the present invention, a lead frame assembly is also disclosed. The lead frame assembly includes: a lead frame 2 and the aforementioned charging seat heater 1. The lead frame 2 includes a plurality of leads and an insulator 20 that is injection molded onto the plurality of leads by an insert injection molding process. The charging seat heater 1 is mechanically and electrically connected to a first lead 21 of the plurality of leads.

[0049] like Figures 1 to 17As shown, in the illustrated embodiment, the first lead wire 21 has a first connection end 21 a exposed from the insulator 20 , and the connection portion 11 of the charging stand heater 1 is mechanically and electrically connected to the first connection end 21 a .

[0050] like Figures 1 to 17 As shown, in the illustrated embodiment, the first connection end 21a is plate-shaped, the connection portion 11 of the charging base heater 1 is columnar, and one end of the connection portion 11 is mechanically and electrically connected to the first connection end 21a.

[0051] like Figures 1 to 17 As shown, in the illustrated embodiment, a connection hole 21b is formed on the first connection end 21a of the first lead 21, and a threaded hole 13 corresponding to the connection hole 21b is formed on the connection portion 11 of the charging stand heater 1. The lead frame assembly also includes a threaded connector 3. The threaded connector 3 passes through the connection hole 21b and is threadedly connected to the threaded hole 13 to fasten the connection portion 11 to the first connection end 21a of the first lead 21.

[0052] like Figures 1 to 17 As shown, in the illustrated embodiment, the lead frame 2 includes a plurality of first leads 21 , and the plurality of connection portions 11 of the charging stand heater 1 are mechanically and electrically connected to the first connection ends 21 a of the plurality of first leads 21 , respectively.

[0053] like Figures 1 to 17 As shown, in the illustrated embodiment, the lead frame 2 includes three first leads 21, and the three connection parts 11 of the charging stand heater 1 are respectively mechanically and electrically connected to the first connection ends 21a of the three first leads 21. The first and second of the three first leads 21 are used to electrically connect to one of the positive and negative electrodes of the power source, and the third of the three first leads 21 is used to electrically connect to the other of the positive and negative electrodes of the power source.

[0054] like Figures 1 to 17 As shown, in the illustrated embodiment, a through hole 201 is formed on the lead frame 2 to allow the charging terminal 41 of the charging seat to pass through. During charging, the current on the charging terminal 41 can be as high as 600A, which will cause the temperature of the charging terminal 41 to rise. In order to prevent the charging terminal 41 from overheating, the temperature of the charging terminal 41 must be monitored during charging. In the illustrated embodiment, the lead frame assembly also includes a temperature detection module 24. The temperature detection module 24 is mounted on the lead frame 2 and is used to detect the temperature of the charging terminal 41 passing through the lead frame 2.

[0055] like Figures 1 to 17As shown, in the illustrated embodiment, the temperature detection module 24 includes: a thermal pad 241 and a temperature sensor 242. The thermal pad 241 is mounted on the insulator 20 of the lead frame 2. The temperature sensor 242 is disposed in the thermal pad 241. The thermal pad 241 is adapted to be in thermal contact with the charging terminal 41 passing through the lead frame 2 to transfer the heat of the charging terminal 41 to the temperature sensor 242.

[0056] like Figures 1 to 17 As shown, in the illustrated embodiment, the plurality of leads of the lead frame 2 further include a second lead 22 having a second connection end 22a exposed from the insulator 20. The second connection end 22a of the second lead 22 is electrically connected to the temperature sensor 242.

[0057] like Figures 1 to 17 As shown, in the illustrated embodiment, the plurality of leads of the lead frame 2 further include a third lead 23, and the third lead 23 has a third connection end 23a exposed from the insulator 20. The third connection end 23a of the third lead 23 is used to be electrically connected to the signal terminal 42 of the charging base.

[0058] like Figures 1 to 17 As shown, in the illustrated embodiment, the plurality of leads of the lead frame 2 respectively have pins 2b exposed from the insulator 20, and the pins 2b of the plurality of leads are arranged in a row and are suitable for being inserted into a low voltage connector (not shown) to be electrically connected to the low voltage connector.

[0059] like Figures 1 to 17 As shown, in another exemplary embodiment of the present invention, a charging stand is also disclosed. The charging stand comprises: a housing 5 and the aforementioned lead frame assembly. A slot 51 is formed in the housing 5. The lead frame assembly is installed in the housing 5. The charging stand heating element 1 of the lead frame assembly is inserted into the slot 51 of the housing 5.

[0060] like Figures 1 to 17 As shown, in the illustrated embodiment, the charging stand further includes a charging terminal 41, a rear cover 6 and a charging cable 7. The charging terminal 41 is disposed in the housing 5 and passes through the lead frame 2 of the lead frame assembly. The rear cover 6 is mounted on the rear end of the housing 5 to close the rear port of the housing 5. The charging cable 7 passes through the rear cover 6 and is electrically connected to the rear end of the charging terminal 41. A mating portion 60 is formed on the rear cover 6, and the pins 2b of the multiple leads of the lead frame 2 extend into the inner cavity of the mating portion 60. The mating portion 60 and the pins 2b of the multiple leads together constitute a mating connector suitable for mating with a low-voltage connector.

[0061] like Figures 1 to 17As shown, in the illustrated embodiment, the charging station further includes a signal terminal 42 and a grounding protection terminal 43 disposed in the housing 5. The charging station heating element 1 is in the shape of a cylinder with an opening 101, and the charging terminal 41, the signal terminal 42 and the grounding protection terminal 43 are located in the space surrounded by the charging station heating element 1. The front ends of the charging terminal 41, the signal terminal 42 and the grounding protection terminal 43 are located in the front port of the housing 5, and are used to mate with the charging gun inserted into the front port of the housing 5.

[0062] like Figures 1 to 17 As shown, in the illustrated embodiment, the temperature detection module 24 of the lead frame assembly is in thermal contact with the charging terminal 41, and is used to detect the temperature of the charging terminal 41. The charging base heater 1 is electrically connected to the first lead 21 of the plurality of leads, the temperature sensor 242 of the temperature detection module 24 is electrically connected to the second lead 22 of the plurality of leads, and the signal terminal 42 is electrically connected to the third lead 23 of the plurality of leads.

[0063] like Figures 1 to 17 As shown, in the illustrated embodiment, a positioning groove 52 is formed in the shell 5 , and the positioning groove 52 engages with the positioning key 12 on the connecting portion 11 of the charging base heater 1 to position the charging base heater 1 in the shell 5 .

[0064] Those skilled in the art will appreciate that the embodiments described above are exemplary and may be improved upon by those skilled in the art. The structures described in the various embodiments may be freely combined without causing any conflicts in structure or principle, and these changes should fall within the scope of protection of the present invention.

[0065] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to exemplify the preferred implementations of the present invention and should not be construed as limiting the present invention.

[0066] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

[0067] 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. In addition, any element reference signs in the claims shall not be construed as limiting the scope of the present invention.

Claims

1. A charging base heating element, characterized in that: The charging base heater (1) is suitable for being inserted into a slot (51) of a housing (5) of the charging base and is suitable for being electrically connected to a lead frame (2) in the housing (5) of the charging base. The charging seat heating element (1) is suitable for being electrically connected to a power source via a first lead (21) in the lead frame (2), and the charging seat heating element (1) generates heat when powered on to heat the charging seat.

2. The charging base heating element according to claim 1, characterized in that: The charging base heating element (1) is made of an electrically conductive and thermally conductive material.

3. The charging base heating element according to claim 1, characterized in that: The charging base heating element (1) is an integral injection-molded part formed of an electrically conductive and thermally conductive injection-molded material.

4. The charging base heating element according to claim 1, characterized in that: include: A main body (10) adapted to be inserted into a slot (51) of the housing (5); and A plurality of connection portions (11) are adapted to be electrically connected to a plurality of first leads (21) of the lead frame (2), respectively.

5. The charging base heating element according to claim 4, characterized in that: The connecting portion (11) is columnar and has a threaded hole (13) formed therein, so that the connecting portion (11) can be mechanically and electrically connected to the first connecting end (21a) of the first lead wire (21) through a threaded connector (3).

6. The charging base heating element according to claim 5, characterized in that: The main body (10) is in the shape of a tube having an opening (101), and the main body (10) has two end portions (10a) which are opposite to each other in the circumferential direction and are respectively located on both sides of the opening (101); The main body (10) has a front side and a rear side opposite to each other in the axial direction thereof, and the connecting portion (11) is connected to the rear side of the main body (10) and extends rearwardly from the rear side of the main body (10) along the axial direction.

7. The charging base heating element according to claim 6, characterized in that: A plurality of axially extending grooves (14) are respectively formed on the front side and the rear side of the main body (10), and the grooves (14) on the front side of the main body (10) and the grooves (14) on the rear side of the main body (10) are alternately arranged in the circumferential direction of the main body (10).

8. The charging base heating element according to claim 6, characterized in that: The charging seat heating element (1) comprises three connecting parts (11), the first and second of the three connecting parts (11) are respectively connected to the rear sides of the two end parts (10a) of the main body (10), and the third of the three connecting parts (11) is connected to the rear side of the middle part (10b) of the main body (10) opposite to the opening (101).

9. The charging base heating element according to claim 8, characterized in that: The first and second of the three connection parts (11) are used to be electrically connected to one of the positive and negative electrodes of a power source at the same time, and the third of the three connection parts (11) is used to be electrically connected to the other of the positive and negative electrodes of the power source.

10. The charging base heating element according to any one of claims 4 to 9, characterized in that: A positioning key (12) is formed on the connecting portion (11) and protrudes radially along the main body portion (10) and extends a predetermined length axially along the main body portion (10). The positioning key (12) is suitable for engaging with a positioning groove (52) in the shell (5) to position the charging base heating element (1) in the shell (5).

11. A lead frame assembly, characterized in that: include: A lead frame (2) comprising a plurality of leads and an insulator (20) injection-molded onto the plurality of leads; and The charging base heater (1) according to any one of claims 1 to 10 is mechanically and electrically connected to a first lead (21) of the plurality of leads.

12. The lead frame assembly according to claim 11, wherein: The first lead wire (21) has a first connection end (21a) exposed from the insulator (20), and the connection portion (11) of the charging base heating element (1) is mechanically and electrically connected to the first connection end (21a).

13. The lead frame assembly according to claim 12, wherein: The first connection end (21a) is plate-shaped, the connection portion (11) of the charging base heating element (1) is column-shaped, and one end of the connection portion (11) is mechanically and electrically connected to the first connection end (21a).

14. The lead frame assembly according to claim 13, wherein: A connection hole (21b) is formed on the first connection end (21a) of the first lead wire (21), and a threaded hole (13) corresponding to the connection hole (21b) is formed on the connection portion (11) of the charging seat heating element (1); The lead frame assembly further comprises: A threaded connector (3) passes through the connection hole (21b) and is threadedly connected to the threaded hole (13) to fasten the connection portion (11) to the first connection end (21a) of the first lead wire (21).

15. The lead frame assembly according to claim 12, wherein: The lead frame (2) comprises a plurality of first lead wires (21), and the plurality of connection portions (11) of the charging stand heating element (1) are respectively mechanically and electrically connected to the first connection ends (21a) of the plurality of first lead wires (21).

16. The lead frame assembly according to claim 12, wherein: The lead frame (2) comprises three first lead wires (21), and the three connecting parts (11) of the charging stand heating element (1) are respectively mechanically and electrically connected to the first connecting ends (21a) of the three first lead wires (21); The first and second of the three first leads (21) are used to be electrically connected to one of the positive and negative electrodes of a power source, and the third of the three first leads (21) is used to be electrically connected to the other of the positive and negative electrodes of the power source.

17. The lead frame assembly according to claim 11, wherein: A through hole (201) is formed on the lead frame (2) to allow a charging terminal (41) of a charging seat to pass through. The lead frame assembly further comprises: A temperature detection module (24) is mounted on the lead frame (2) and is used to detect the temperature of a charging terminal (41) passing through the lead frame (2).

18. The lead frame assembly according to claim 17, wherein: The temperature detection module (24) comprises: A thermally conductive pad (241) mounted on the insulator (20) of the lead frame (2); and A temperature sensor (242) is arranged in the thermal pad (241). The thermal conductive pad (241) is suitable for thermally contacting a charging terminal (41) passing through the lead frame (2) to transfer heat of the charging terminal (41) to the temperature sensor (242).

19. The lead frame assembly according to claim 18, wherein: The multiple leads of the lead frame (2) further include a second lead (22), the second lead (22) having a second connection end (22a) exposed from the insulator (20), and the second connection end (22a) of the second lead (22) is electrically connected to the temperature sensor (242).

20. The lead frame assembly according to claim 19, wherein: The plurality of leads of the lead frame (2) further include a third lead (23), wherein the third lead (23) has a third connection end (23a) exposed from the insulator (20), and the third connection end (23a) of the third lead (23) is used to be electrically connected to a signal terminal (42) of the charging base.

21. The lead frame assembly according to claim 11, wherein: The plurality of leads of the lead frame (2) respectively have pins (2b) exposed from the insulator (20); the pins (2b) of the plurality of leads are arranged in a row and are suitable for being inserted into a low-voltage connector to be electrically connected to the low-voltage connector.

22. A charging stand, characterized in that: include: The housing (5) is formed with a slot (51); and The lead frame assembly according to any one of claims 11 to 21, mounted in the housing (5), The charging base heating element (1) of the lead frame assembly is inserted into the slot (51) of the housing (5).

23. The charging stand according to claim 22, characterized in that: Also includes: A charging terminal (41) disposed in the housing (5) and passing through the lead frame (2) of the lead frame assembly; A rear cover (6) mounted on the rear end of the housing (5) to close the rear port of the housing (5); and a charging cable (7) passing through the rear cover (6) and electrically connected to the rear end of the charging terminal (41), A mating portion (60) is formed on the rear cover (6), and pins (2b) of the plurality of leads of the lead frame (2) extend into an inner cavity of the mating portion (60). The mating portion (60) and the pins (2b) of the plurality of leads together form a mating connector suitable for mating with a low-voltage connector.

24. The charging stand according to claim 23, characterized in that: Also includes: A signal terminal (42) is arranged in the housing (5); and A grounding protection terminal (43) is arranged in the housing (5). The charging seat heating element (1) is in the shape of a tube having an opening (101); the charging terminal (41), the signal terminal (42) and the grounding protection terminal (43) are located in a space enclosed by the charging seat heating element (1). The front ends of the charging terminal (41), the signal terminal (42) and the grounding protection terminal (43) are located in the front port of the shell (5) and are used to mate with a charging gun inserted into the front port of the shell (5).

25. The charging stand according to claim 24, characterized in that: The temperature detection module (24) of the lead frame assembly is in thermal contact with the charging terminal (41) and is used to detect the temperature of the charging terminal (41); The charging seat heating element (1) is electrically connected to a first lead (21) among the multiple leads, the temperature sensor (242) of the temperature detection module (24) is electrically connected to a second lead (22) among the multiple leads, and the signal terminal (42) is electrically connected to a third lead (23) among the multiple leads.

26. The charging stand according to claim 22, characterized in that: A positioning groove (52) is formed in the shell (5), and the positioning groove (52) engages with a positioning key (12) on the connecting portion (11) of the charging seat heating element (1) to position the charging seat heating element (1) in the shell (5).

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