Electrical connector assembly and charging device

Abstract

This invention discloses an electrical connector assembly and charging device that allow for the rapid assembly of a temperature sensor into a cable sealing member, thereby improving assembly efficiency. [Solution] The electrical connector assembly includes a sealing member 1 having a cable through-hole 101 and an insertion hole 102, a cable 2 that passes through and is crimped into the cable through-hole, a charging terminal 3 electrically connected to the cable, a temperature sensor 4 for detecting the temperature of the charging terminal, and a sealing plug 5 provided on the lead of the temperature sensor and crimped into the insertion hole of the sealing member. The electrical connector assembly is suitable for insertion into a mounting hole in the case of a charging device, the sealing member is for sealing the rear end opening of the mounting hole, and the sealing plug is pressed between the sealing member and the lead to achieve a seal between the lead and the sealing plug and between the sealing plug and the sealing member.

Description

Technical Field

[0001] The present invention relates to an electrical connector assembly and a charging device including the electrical connector assembly.

Background Art

[0002] In the prior art, in order to charge the battery pack of a new energy electric vehicle, it is necessary to attach a charging stand suitable for pairing with a charging gun to the new energy electric vehicle. In order to improve the charging speed, it is necessary to increase the charging current, which currently reaches 600 A and may be increased to 1000 A in the future. When a large current flows through the charging terminal in the charging stand, a large amount of heat is generated, causing a rapid temperature rise of the charging terminal in the charging stand. If the temperature rise cannot be controlled in a timely manner, it may cause a safety accident such as burning out the charging stand or other electrical equipment.

[0003] In the prior art, in order to control the temperature rise of the charging terminal, usually, one lead frame is provided on the charging stand and a temperature detector is attached to the lead frame. The temperature detector includes a temperature sensor and a heat conduction pad coated outside the temperature sensor. The heat conduction pad is in thermal contact with the charging terminal, and the temperature sensor is electrically connected to the lead frame. Such a conventional temperature detector has a very complicated mounting structure, is difficult to assemble, has a high cost, and is inconvenient to use.

Summary of the Invention

[0004] An object of the present invention is to solve at least one aspect of the above problems and defects in the prior art.​​​According to one aspect of the present invention, an electrical connector assembly is provided. The electrical connector assembly includes a sealing member having a cable through hole and an insertion hole spaced apart from the cable through hole; a cable passing through the cable through hole and being crimped into the cable through hole so as to achieve a seal between the cable and the sealing member; a charging terminal electrically connected to the cable; a temperature sensor for detecting the temperature of the charging terminal; and a sealing plug provided on the lead of the temperature sensor and crimped into the insertion hole of the sealing member, wherein the electrical connector assembly is suitable for insertion into a mounting hole in the case of a charging device, the sealing member is for sealing the rear end opening of the mounting hole, and the sealing plug is pressed between the sealing member and the lead to achieve a seal between the lead and the sealing plug and between the sealing plug and the sealing member.

[0006] According to one exemplary embodiment of the present invention, the sealing member has a single through-hole, and the electrical connector assembly includes a single sealing plug provided on a pair of leads of the temperature sensor and inserted into the single through-hole.

[0007] According to another exemplary embodiment of the present invention, the sealing member has two through holes, and the electrical connector assembly includes two sealing plugs, each provided on a pair of leads of the temperature sensor and inserted into the two through holes, respectively.

[0008] According to another exemplary embodiment of the present invention, the electrical connector assembly further includes a rear end cover suitable for mounting to the rear end opening of a mounting hole in the case, the end wall of the rear end cover having a cable hole through which the cable passes and a lead hole through which the pair of leads pass.

[0009] According to another exemplary embodiment of the present invention, a positioning flange is formed on the outer circumference of the rear end of the seal plug, which contacts the end wall of the rear end cover to transmit the tensile force applied to the lead to the case via the seal plug and the rear end cover.

[0010] According to another exemplary embodiment of the present invention, the positioning flange has a front and a rear side facing each other in the axial direction of the seal plug, the rear side of the positioning flange abuts against the inside of the end wall of the rear end cover and the front side of the positioning flange abuts against the rear end surface of the seal member, so that the seal member is positioned in the axial direction.

[0011] According to another exemplary embodiment of the present invention, the peripheral wall of the rear end cover is formed with an engagement groove suitable for engaging with a projection on the peripheral wall of the rear end opening of the case, so as to secure the rear end cover to the case.

[0012] According to another exemplary embodiment of the present invention, the peripheral wall of the rear end cover has an opening that allows the passage of the seal plug and the body of the temperature sensor and communicates with the lead hole.

[0013] According to another exemplary embodiment of the present invention, the seal plug is injection-molded onto the leads of the temperature sensor so as to be integral with the temperature sensor.

[0014] According to another exemplary embodiment of the present invention, the seal plug is assembled to the lead of the temperature sensor.

[0015] According to another exemplary embodiment of the present invention, the seal plug is formed with lead through-holes through which the leads of the temperature sensor pass, and the leads of the temperature sensor are crimped into the lead through-holes of the seal plug so as to achieve a seal between the seal plug and the leads.

[0016] According to another exemplary embodiment of the present invention, the seal plug includes a seal core having a lead through-hole, and a mounting sleeve fitted onto the seal core. The lead of the temperature sensor passes through the lead through-hole, the seal core is pressed between the lead and the mounting sleeve so as to achieve a seal between them, and the mounting sleeve is crimped into the through-hole of the seal member so as to achieve a seal between it and the seal member.

[0017] According to another exemplary embodiment of the present invention, the positioning flange is formed on the outer circumference of the rear end of the mounting sleeve, which abuts against the end wall of the rear end cover, and the flange portion is formed on the outer circumference of the tip of the seal core, which abuts against the tip surface of the mounting sleeve.

[0018] According to another exemplary embodiment of the present invention, the electrical connector assembly further includes a pair of connector terminals, each electrically connected to the ends of a pair of leads of the temperature sensor drawn out from a lead hole in the rear end cover, the connector terminals being inserted into terminal holes in the connector case for pairing with mating terminals provided in the terminal holes.

[0019] According to another exemplary embodiment of the present invention, the electrical connector assembly further includes a pair of sealing rings that are fitted onto a pair of leads of the temperature sensor, each of which is drawn out from the lead holes of the rear end cover, the sealing rings being inserted into terminal holes of the connector case to seal the terminal holes of the connector case.

[0020] According to another exemplary embodiment of the present invention, the connecting terminal is crimped or welded to the end of the lead.

[0021] According to another exemplary embodiment of the present invention, the electrical connector assembly further includes a heat conductive member that covers the body of the temperature sensor and is in thermal contact with the charging terminal to transfer heat from the charging terminal to the body of the temperature sensor.

[0022] According to another exemplary embodiment of the present invention, the rear end of the charging terminal is crimped or welded to the cable, and the heat conductive member is in thermal contact with the rear end of the charging terminal.

[0023] According to another exemplary embodiment of the present invention, the rear end of the charging terminal is crimped or welded to the cable, and the temperature sensor has its body facing the rear end of the charging terminal and is for detecting the temperature of the rear end of the charging terminal.

[0024] According to another exemplary embodiment of the present invention, the charging terminal includes a cylindrical body with a mounting groove formed around the outside of the cylindrical body, and the electrical connector assembly further includes a sealing ring fitted into the mounting groove, the sealing ring being suitable for being pressed radially between the cylindrical body of the charging terminal and the inner wall of the mounting hole of the case so as to achieve a seal between them.

[0025] Another aspect of the present invention provides a charging device, the charging device comprising a case having a mounting hole and an electrical connector assembly inserted into the mounting hole, wherein a sealing member is inserted into the rear end opening of the mounting hole to seal the rear end opening of the mounting hole, and a pair of leads of the temperature sensor are drawn out from the rear end opening of the mounting hole in the case.

[0026] According to another exemplary embodiment of the present invention, the case is provided with a plurality of mounting holes, and the charging device includes a plurality of electrical connector assemblies, each of which is inserted into the plurality of mounting holes.

[0027] According to another exemplary embodiment of the present invention, a pair of leads of the temperature sensor includes one negative lead and one positive lead, and the ends of the negative leads of the temperature sensors of the plurality of electrical connector assemblies are bundled together and electrically connected.

[0028] According to another exemplary embodiment of the present invention, the charging device further includes a single negative terminal electrically connected to the end of the negative lead of the temperature sensor in one of the plurality of electrical connector assemblies, and a plurality of positive terminals electrically connected to the ends of the positive leads of the temperature sensors in the plurality of electrical connector assemblies respectively. The single negative terminal is for insertion into the negative terminal hole in the connector case, and the positive terminals are for insertion into the positive terminal holes in the connector case.

[0029] According to another exemplary embodiment of the present invention, the charging device further includes a single negative seal ring externally fitted to the negative lead of the temperature sensor in one of the plurality of electrical connector assemblies, and a plurality of positive seal rings externally fitted to the positive leads of the temperature sensors in the plurality of electrical connector assemblies respectively. The single negative seal ring is for sealing the negative terminal hole of the connector case, and the positive seal rings are for sealing the positive terminal holes of the connector case.

[0030] According to another exemplary embodiment of the present invention, the charging device is a charging stand or a charging gun.

[0031] In each of the exemplary embodiments of the present invention, the temperature sensor can be quickly assembled to the cable sealing member by a sealing plug, and the temperature sensor can be inserted into the case of the charging device together with the charging terminals and the cable, improving the assembly efficiency.

[0032] Also, in some of the exemplary embodiments of the present invention, since the positioning flange in the sealing plug abuts against the rear end cover, it is possible to effectively prevent the tensile force applied to the lead of the temperature sensor from being transmitted to the body of the temperature sensor, and the body of the temperature sensor is not affected by the tensile force.

[0033] The following description of the present invention with reference to the drawings will clarify other objects and merits of the present invention and contribute to a comprehensive understanding of the present invention. [Brief explanation of the drawing]

[0034] [Figure 1] This is an exploded schematic diagram showing a charging device according to the first embodiment of the present invention. [Figure 2] This is an exploded cross-sectional view showing a charging device according to a first embodiment of the present invention. [Figure 3] This is an assembled cross-sectional view showing a charging device according to a first embodiment of the present invention. [Figure 4] This is a schematic perspective view showing an electrical connector assembly of a charging device according to a first embodiment of the present invention. [Figure 5] This is a cross-sectional view showing an electrical connector assembly of a charging device according to a first embodiment of the present invention. [Figure 6] This is an exploded schematic diagram showing an electrical connector assembly of a charging device according to a first embodiment of the present invention. [Figure 7] This is a schematic perspective view showing a temperature sensor and a sealing plug of an electrical connector assembly according to a first embodiment of the present invention. [Figure 8] This is an exploded schematic diagram showing a temperature sensor and a sealing plug of an electrical connector assembly according to a second embodiment of the present invention. [Figure 9] This is a schematic assembly diagram showing a temperature sensor and a sealing plug of an electrical connector assembly according to a second embodiment of the present invention. [Figure 10] This is a schematic perspective view showing an electrical connector assembly of a charging device according to a third embodiment of the present invention. [Figure 11] This is a cross-sectional view showing an electrical connector assembly of a charging device according to a third embodiment of the present invention. [Figure 12] This is a schematic perspective view showing a temperature sensor and a sealing plug of an electrical connector assembly according to a third embodiment of the present invention. [Figure 13] This is a cross-sectional view showing a temperature sensor and a sealing plug of an electrical connector assembly according to a third embodiment of the present invention. [Figure 14] This is an exploded schematic diagram showing a temperature sensor and a sealing plug of an electrical connector assembly according to a third embodiment of the present invention. [Figure 15] This is an exploded cross-sectional view showing a temperature sensor and a sealing plug of an electrical connector assembly according to a third embodiment of the present invention. [Modes for carrying out the invention]

[0035] The technical concept of the present invention will be described in more detail below with reference to the drawings, through the examples provided. In this specification, the same or similar reference numerals refer to the same or similar components. The following description of embodiments of the present invention with reference to the drawings is intended to interpret the overall inventive concept of the present invention and should not be understood as limiting the present invention.

[0036] Furthermore, the following detailed description includes many specific details to facilitate interpretation and to allow for a full understanding of the embodiments of this disclosure. However, it will be apparent that one or more embodiments can be implemented without these specific details. In other cases, known structures and devices are represented in illustrative form for the sake of simplifying the drawings.

[0037] According to one overall technical concept of the present invention, an electrical connector assembly is provided. The electrical connector assembly includes a sealing member having a cable through hole and an insertion hole spaced apart from the cable through hole; a cable passing through the cable through hole and being crimped into the cable through hole so as to achieve a seal between itself and the sealing member; a charging terminal electrically connected to the cable; a temperature sensor for detecting the temperature of the charging terminal; and a sealing plug provided on the lead of the temperature sensor and crimped into the insertion hole of the sealing member, wherein the electrical connector assembly is suitable for insertion into a mounting hole in the case of a charging device, the sealing member is for sealing the rear end opening of the mounting hole, and the sealing plug is pressed between the sealing member and the lead to achieve a seal between the lead and the sealing plug and between the sealing plug and the sealing member.

[0038] According to another overall technical concept of the present invention, a charging device is provided. The charging device includes a case having a mounting hole formed therein, and an electrical connector assembly inserted into the mounting hole. The sealing member is inserted into the rear end opening of the mounting hole to seal the rear end opening of the mounting hole, and a pair of leads of the temperature sensor are drawn out from the rear end opening of the mounting hole in the case.

[0039] Figures 1 to 7 show a first embodiment of the present invention. Here, Figure 1 is an exploded schematic diagram showing a charging device according to the first embodiment of the present invention. Figure 2 is an exploded cross-sectional view showing a charging device according to the first embodiment of the present invention. Figure 3 is an assembled cross-sectional view showing a charging device according to the first embodiment of the present invention. Figure 4 is a perspective schematic diagram showing the electrical connector assembly 100 of the charging device according to the first embodiment of the present invention. Figure 5 is a cross-sectional view showing the electrical connector assembly 100 of the charging device according to the first embodiment of the present invention. Figure 6 is an exploded schematic diagram showing the electrical connector assembly 100 of the charging device according to the first embodiment of the present invention. Figure 7 is a perspective schematic diagram showing the temperature sensor 4 and seal plug 5 of the electrical connector assembly 100 according to the first embodiment of the present invention.

[0040] As shown in Figures 1 to 7, one exemplary embodiment of the present invention discloses an electrical connector assembly 100. The electrical connector assembly 100 includes a sealing member 1, a cable 2, a charging terminal 3, a temperature sensor 4, and a sealing plug 5. The sealing member 1 has a cable through hole 101 and an insertion hole 102 spaced apart from the cable through hole 101. The cable 2 passes through the cable through hole 101 and is crimped into the cable through hole 101 so as to achieve a seal between the sealing member 1 and the cable 2. The charging terminal 3 is electrically connected to the cable 2. The temperature sensor 4 is for detecting the temperature of the charging terminal 3. The sealing plug 5 is provided on the lead 41 of the temperature sensor 4 and is crimped into the insertion hole 102 of the sealing member 1. The electrical connector assembly 100 is suitable for insertion into a mounting hole 90 in a case 9 of a charging device, and the sealing member 1 is for sealing the rear end opening 901 of the mounting hole 90. The seal plug 5 is pressed between the sealing member 1 and the lead 41 to achieve a seal between the lead 41 and the seal plug 5, and between the seal plug 5 and the sealing member 1.

[0041] As shown in Figures 1 to 7, in the illustrated embodiment, the sealing member 1 has a single insertion hole 102, and the electrical connector assembly 100 is provided on a pair of leads 41 of the temperature sensor 4 and includes a single sealing plug 5 that is inserted into the single insertion hole 102. In this way, the single sealing plug 5 can simultaneously assemble and seal the pair of leads 41.

[0042] However, the present invention is not limited to the illustrated embodiments. For example, in another exemplary embodiment of the present invention, the sealing member 1 may have two through holes 102, and the electrical connector assembly 100 may include two sealing plugs 5, each provided on a pair of leads 41 of the temperature sensor 4 and inserted into the two through holes 102, respectively. In this way, the two sealing plugs 5 can be used to assemble and seal the pair of leads 41, respectively.

[0043] As shown in Figures 1 to 7, in the illustrated embodiment, the electrical connector assembly 100 further includes a rear end cover 6. The rear end cover 6 is suitable for mounting to the rear end opening 901 of the mounting hole 90 of the case 9. The end wall 61 of the rear end cover 6 has a cable hole 601 through which the cable 2 passes and a lead hole 602 through which a pair of leads 41 pass.

[0044] As shown in Figures 1 to 7, in the illustrated embodiment, a positioning flange 5a is formed on the outer circumference of the rear end of the seal plug 5, which abuts against the inside of the end wall 61 of the rear end cover 6, thereby transmitting the tensile force applied to the lead 41 to the case 9 via the seal plug 5 and the rear end cover 6. In this way, the tensile force applied to the lead 41 is effectively prevented from being transmitted to the body 40 of the temperature sensor 4, and the body 40 of the temperature sensor 4 is not affected by the tensile force applied to the lead 41.

[0045] As shown in Figures 1 to 7, in the illustrated embodiment, the positioning flange 5a has a front side and a rear side that face each other in the axial direction of the seal plug 5, and the rear side of the positioning flange 5a abuts against the inside of the end wall 61 of the rear end cover 6, and the front side of the positioning flange 5a abuts against the rear end surface of the seal member 1, so that the seal member 1 is positioned in the axial direction.

[0046] As shown in Figures 1 to 7, in the illustrated embodiment, the peripheral wall 62 of the rear end cover 6 is formed with an engagement groove 6a suitable for joining with a projection 9a on the peripheral wall of the rear end opening 901 of the case 9, so as to fix the rear end cover 6 to the case 9.

[0047] As shown in Figures 1 to 7, in the illustrated embodiment, the peripheral wall 62 of the rear end cover 6 has an opening 603 that allows the passage of the seal plug 5 and the body 40 of the temperature sensor 4, and communicates with the lead hole 602. In this way, it is possible to assemble the temperature sensor 4 to the seal member 1 and the rear end cover 6 after the connection terminal 7 has been crimped to the end of the lead 41.

[0048] As shown in Figures 1 to 7, in the illustrated embodiment, the seal plug 5 is injection molded onto a pair of leads 41 of the temperature sensor 4 so as to be integrated with the temperature sensor 4.

[0049] Figures 8 and 9 show a second embodiment of the present invention. Here, Figure 8 is an exploded schematic diagram showing the temperature sensor 4 and seal plug 5 of the electrical connector assembly 100 according to the second embodiment of the present invention. Figure 9 is an assembled schematic diagram showing the temperature sensor 4 and seal plug 5 of the electrical connector assembly 100 according to the second embodiment of the present invention.

[0050] The second embodiment shown in Figures 8 and 9 differs from the first embodiment shown in Figures 1 to 7 only in the way the seal plug 5 is provided on the lead 41.

[0051] As shown in Figures 8 and 9, in the illustrated embodiment, the seal plug 5 is assembled to the lead 41 of the temperature sensor 4. In this way, the position of the seal plug 5 can be adjusted.

[0052] As shown in Figures 8 and 9, in the illustrated embodiment, the seal plug 5 has a lead through-hole 501 through which the lead 41 of the temperature sensor 4 passes. The lead 41 of the temperature sensor 4 is crimped into the lead through-hole 501 of the seal plug 5 so that a seal is achieved between the seal plug 5 and the lead 41.

[0053] Figures 10 to 15 show a third embodiment of the present invention. Here, Figure 10 is a schematic perspective view showing an electrical connector assembly 100 of a charging device according to the third embodiment of the present invention. Figure 11 is a cross-sectional view showing an electrical connector assembly 100 of a charging device according to the third embodiment of the present invention. Figure 12 is a schematic perspective view showing a temperature sensor 4 and a seal plug 5 of the electrical connector assembly 100 according to the third embodiment of the present invention. Figure 13 is a cross-sectional view showing a temperature sensor 4 and a seal plug 5 of the electrical connector assembly 100 according to the third embodiment of the present invention. Figure 14 is an exploded schematic view showing a temperature sensor 4 and a seal plug 5 of the electrical connector assembly 100 according to the third embodiment of the present invention. Figure 15 is an exploded cross-sectional view showing a temperature sensor 4 and a seal plug 5 of the electrical connector assembly 100 according to the third embodiment of the present invention.

[0054] The third embodiment shown in Figures 10 to 15 differs from the first embodiment shown in Figures 1 to 7 only in that the structure of the seal stopper 5 is different.

[0055] As shown in Figures 10 to 15, in the illustrated embodiment, the seal plug 5 includes a seal core 51 and a mounting sleeve 52. A lead through hole 501 is formed in the seal core 51. The mounting sleeve 52 is fitted onto the seal core 51. The lead 41 of the temperature sensor 4 passes through the lead through hole 501, and the seal core 51 is pressed between the lead 41 and the mounting sleeve 52 to achieve a seal between them. The mounting sleeve 52 is crimped into the insertion hole 102 of the seal member 1 to achieve a seal between it and the seal member 1.

[0056] As shown in Figures 10 to 15, in the illustrated embodiment, a positioning flange 5a is formed on the outer circumference of the rear end of the mounting sleeve 52, which abuts against the end wall 61 of the rear end cover 6. A flange portion 5b is formed on the outer circumference of the tip of the seal core 51, which abuts against the tip surface of the mounting sleeve 52. In this way, it is possible to prevent the tensile force applied to the lead 41 from being transmitted to the main body 40 of the temperature sensor 4.

[0057] As shown in Figures 1 to 15, in the illustrated embodiment, the electrical connector assembly 100 further includes a pair of connection terminals 7. The pair of connection terminals 7 are electrically connected to the ends of a pair of leads 41 of the temperature sensor 4, which are drawn out from the lead holes 602 of the rear end cover 6. The connection terminals 7 are inserted into terminal holes (not shown) in a connector case (not shown) for pairing with mating terminals (not shown) provided in the terminal holes.

[0058] As shown in Figures 1 to 15, in the illustrated embodiment, the electrical connector assembly 100 further includes a pair of sealing rings 8. The pair of sealing rings 8 are fitted onto a pair of leads 41 of the temperature sensor 4, which are drawn out from the lead holes 602 of the rear end cover 6. The sealing rings 8 are inserted into the terminal holes of the connector case to seal the terminal holes of the connector case.

[0059] As shown in Figures 1 to 15, in the illustrated embodiment, the connecting terminal 7 may be crimped or welded to the end of the lead 41.

[0060] As shown in Figures 1 to 15, in the illustrated embodiment, the electrical connector assembly 100 further includes a heat conductive member (not shown) that covers the body 40 of the temperature sensor 4 and makes thermal contact with the charging terminal 3. The heat conductive member is for transferring heat from the charging terminal 3 to the body 40 of the temperature sensor 4.

[0061] As shown in Figures 1 to 15, in the illustrated embodiment, the rear end 31 of the charging terminal 3 is crimped or welded to the cable 2, and the heat conductive member is in thermal contact with the rear end 31 of the charging terminal 3.

[0062] As shown in Figures 1 to 15, in the illustrated embodiment, the rear end 31 of the charging terminal 3 is crimped or welded to the cable 2, and the temperature sensor 4 has its body 40 facing the rear end 31 of the charging terminal 3 to detect the temperature of the rear end 31 of the charging terminal 3. This is because the temperature of the rear end 31 of the charging terminal 3, which is crimped or welded to the cable 2, is the highest.

[0063] As shown in Figures 1 to 15, in the illustrated embodiment, the charging terminal 3 includes a cylindrical body 30, on which a mounting groove 3a is formed all around the outside of the cylindrical body 30, and the electrical connector assembly 100 further includes a sealing ring 3b that is fitted into the mounting groove 3a. The sealing ring 3b is suitable for being pressed radially between the cylindrical body 30 of the charging terminal 3 and the inner circumferential wall of the mounting hole 90 of the case 9 so as to achieve a seal between them.

[0064] As shown in Figures 1 to 15, another exemplary embodiment of the present invention further discloses a charging device. The charging device includes a case 9 and an electrical connector assembly 100. A mounting hole 90 is formed in the case 9. The electrical connector assembly 100 is inserted into the mounting hole 90. A sealing member 1 is inserted into the rear end opening 901 of the mounting hole 90 to seal the rear end opening 901 of the mounting hole 90, and a pair of leads 41 of the temperature sensor 4 are drawn out from the rear end opening 901 of the mounting hole 90 in the case 9.

[0065] As shown in Figures 1 to 15, in the illustrated embodiment, the case 9 has a plurality of mounting holes 90, and the charging device includes a plurality of electrical connector assemblies 100 which are inserted into each of the plurality of mounting holes 90.

[0066] As shown in Figures 1 to 15, in the illustrated embodiment, a pair of leads 41 of the temperature sensor 4 includes one negative lead and one positive lead, and the ends of the negative leads of the temperature sensor 4 of multiple electrical connector assemblies 100 are bundled together and electrically connected.

[0067] As shown in Figures 1 to 15, in the illustrated embodiment, the charging device further includes a single negative terminal (not shown) and a plurality of positive terminals (not shown). The single negative terminal is electrically connected to the end of the negative lead of the temperature sensor 4 in one of the plurality of electrical connector assemblies 100. The plurality of positive terminals are each electrically connected to the end of the positive lead of the temperature sensor 4 in the plurality of electrical connector assemblies 100. The single negative terminal is for insertion into a negative terminal hole (not shown) in a connector case (not shown), and the positive terminals are for insertion into positive terminal holes (not shown) in a connector case (not shown).

[0068] As shown in Figures 1 to 15, in the illustrated embodiment, the charging device further includes a single negative electrode seal ring (not shown) and a plurality of positive electrode seal rings (not shown). The single negative electrode seal ring is fitted onto the negative electrode lead of the temperature sensor 4 in one of the plurality of electrical connector assemblies 100. The plurality of positive electrode seal rings are each fitted onto the positive electrode lead of the temperature sensor 4 in the plurality of electrical connector assemblies 100. The single negative electrode seal ring is for sealing the negative electrode terminal hole of the connector case, and the positive electrode seal rings are for sealing the positive electrode terminal hole of the connector case.

[0069] As shown in Figures 1 to 15, in the illustrated embodiments, the charging device may be a charging stand or a charging gun.

[0070] As those skilled in the art will understand, all embodiments described above are illustrative and can be improved upon by those skilled in the art. The structures described in the various embodiments can be freely combined as long as they are not structurally or fundamentally contradictory, and these variations are naturally within the scope of protection of the present invention.

[0071] Although the present invention has been described with reference to the drawings, the embodiments disclosed in the drawings are for illustrative purposes to illustrate preferred embodiments of the present invention and should not be understood as limiting the present invention.

[0072] While several embodiments of the overall concept of the present invention have been shown and explained, these embodiments can be modified without departing from the principles and spirit of the overall concept of the present invention, as will be understood by those skilled in the art, and the scope of the present invention is limited by the claims and their equivalents.

[0073] It should be noted that the term "includes" does not exclude other elements or steps, and the terms "one" or "one" do not exclude multiple elements. Furthermore, no element reference numeral in the claims should be understood to limit the scope of the present invention.

Claims

1. An electrical connector assembly, A sealing member (1) having a cable penetration hole (101) and an insertion hole (102) spaced apart from the cable penetration hole (101), A cable (2) passes through the cable through hole (101) and is fitted into the cable through hole (101) so as to achieve a seal between it and the sealing member (1), A charging terminal (3) is electrically connected to the cable (2), A temperature sensor (4) for detecting the temperature of the charging terminal (3), The seal plug (5) is provided on the lead (41) of the temperature sensor (4) and is crimped into the insertion hole (102) of the sealing member (1), The electrical connector assembly (100) is suitable for insertion into a mounting hole (90) in the case (9) of the charging device, and the sealing member (1) is for sealing the rear end opening (901) of the mounting hole (90). An electrical connector assembly characterized in that the seal plug (5) is pressed between the sealing member (1) and the lead (41) to achieve a seal between the lead (41) and the seal plug (5) and a seal between the seal plug (5) and the sealing member (1).

2. The electrical connector assembly according to claim 1, characterized in that the sealing member (1) has a single through hole (102) formed therein, and the electrical connector assembly (100) includes a single seal plug (5) provided on a pair of leads (41) of the temperature sensor (4) and inserted into the single through hole (102).

3. The electrical connector assembly according to claim 1, characterized in that the sealing member (1) has two through holes (102) formed therein, and the electrical connector assembly (100) includes two sealing plugs (5) which are provided on a pair of leads (41) of the temperature sensor (4) and are inserted into the two through holes (102) respectively.

4. The case (9) further includes a rear end cover (6) suitable for attachment to the rear end opening (901) of the mounting hole (90), The electrical connector assembly according to claim 1, characterized in that the end wall (61) of the rear end cover (6) has a cable hole (601) through which the cable (2) passes and a lead hole (602) through which a pair of leads (41) of the temperature sensor (4) pass.

5. The electrical connector assembly according to claim 4, characterized in that a positioning flange (5a) is formed on the outer circumference of the rear end of the seal plug (5), which contacts the end wall (61) of the rear end cover (6), thereby transmitting the tensile force applied to the lead (41) to the case (9) via the seal plug (5) and the rear end cover (6).

6. The positioning flange (5a) has a front and rear side that face each other in the axial direction of the seal plug (5), and the rear side of the positioning flange (5a) abuts against the inside of the end wall (61) of the rear end cover (6), and the front side of the positioning flange (5a) abuts against the rear end surface of the seal member (1), so that the seal member (1) is positioned in the axial direction, as described in claim 5.

7. The electrical connector assembly according to claim 4, characterized in that an engagement groove (6a) suitable for joining with a projection (9a) on the peripheral wall (62) of the rear end cover (6) is formed in the rear end cover (6) so as to fix the rear end cover (6) to the case (9).

8. The electrical connector assembly according to claim 4, characterized in that an opening (603) is formed in the peripheral wall (62) of the rear end cover (6) that allows the passage of the seal plug (5) and the body (40) of the temperature sensor (4) and communicates with the lead hole (602).

9. The electrical connector assembly according to any one of claims 1 to 8, characterized in that the seal plug (5) is injection molded onto the lead (41) of the temperature sensor (4) so ​​as to be integrated with the temperature sensor (4).

10. The electrical connector assembly according to any one of claims 1 to 8, characterized in that the seal plug (5) is assembled to the lead (41) of the temperature sensor (4).

11. The seal plug (5) has a lead through-hole (501) through which the lead (41) of the temperature sensor (4) passes. The electrical connector assembly according to claim 10, characterized in that the lead (41) of the temperature sensor (4) is crimped into the lead through hole (501) of the seal plug (5) so as to achieve a seal between the seal plug (5) and the lead (41).

12. The aforementioned seal plug (5) A seal core (51) in which a lead through hole (501) is formed, The mounting sleeve (52) is fitted onto the seal core (51), The lead (41) of the temperature sensor (4) passes through the lead through hole (501), and the seal core (51) is pressed between the lead (41) and the mounting sleeve (52) so that a seal is achieved between them. The electrical connector assembly according to any one of claims 4 to 8, characterized in that the mounting sleeve (52) is crimped into the insertion hole (102) of the sealing member (1) so as to achieve a seal between it and the sealing member (1).

13. A positioning flange (5a) is formed on the outer circumference of the rear end of the mounting sleeve (52) that abuts against the end wall (61) of the rear end cover (6). The electrical connector assembly according to claim 12, characterized in that a flange portion (5b) is formed on the outer circumference of the tip of the seal core (51) and contacts the tip surface of the mounting sleeve (52).

14. The temperature sensor (4) further includes a pair of connection terminals (7) that are electrically connected to the ends of a pair of leads (41) that are drawn out from the lead holes (602) of the rear end cover (6), The electrical connector assembly according to claim 4, characterized in that the connection terminal (7) is inserted into a terminal hole in the connector case and is for pairing with a mating terminal provided in the terminal hole.

15. The temperature sensor (4) further includes a pair of seal rings (8) that are fitted onto a pair of leads (41) that are drawn out from the lead holes (602) of the rear end cover (6), The electrical connector assembly according to claim 14, characterized in that the sealing ring (8) is inserted into the terminal hole of the connector case to seal the terminal hole of the connector case.

16. The electrical connector assembly according to claim 14, characterized in that the connection terminal (7) is crimped or welded to the end of the lead (41).

17. The electrical connector assembly according to claim 1, further comprising a heat conductive member that covers the body (40) of the temperature sensor (4) and makes thermal contact with the charging terminal (3), thereby transferring heat from the charging terminal (3) to the body (40) of the temperature sensor (4).

18. The electrical connector assembly according to claim 17, characterized in that the rear end (31) of the charging terminal (3) is crimped or welded to the cable (2), and the heat conductive member is in thermal contact with the rear end (31) of the charging terminal (3).

19. The electrical connector assembly according to claim 1, characterized in that the rear end (31) of the charging terminal (3) is crimped or welded to the cable (2), and the temperature sensor (4) has its body (40) facing the rear end (31) of the charging terminal (3) and is for detecting the temperature of the rear end (31) of the charging terminal (3).

20. The charging terminal (3) includes a cylindrical body (30), and a mounting groove (3a) is formed all around the outside of the cylindrical body (30). The electrical connector assembly (100) further includes a sealing ring (3b) that is attached to the mounting groove (3a). The electrical connector assembly according to claim 1, characterized in that the sealing ring (3b) is suitable for being pressed radially between the cylindrical body (30) of the charging terminal (3) and the inner circumferential wall of the mounting hole (90) of the case (9) so as to achieve a seal between them.

21. A charging device, A case (9) in which a mounting hole (90) is formed, Includes an electrical connector assembly (100) according to any one of claims 1 to 20, which is inserted into the mounting hole (90), The charging device is characterized in that the sealing member (1) is inserted into the rear end opening (901) of the mounting hole (90) to seal the rear end opening (901) of the mounting hole (90), and a pair of leads (41) of the temperature sensor (4) are pulled out from the rear end opening (901) of the mounting hole (90) of the case (9).

22. The charging device according to claim 21, characterized in that the case (9) has a plurality of mounting holes (90) formed therein, and the charging device includes a plurality of electrical connector assemblies (100) that are inserted into each of the plurality of mounting holes (90).

23. The charging device according to claim 22, characterized in that the pair of leads (41) of the temperature sensor (4) includes one negative lead and one positive lead, and the ends of the negative leads of the temperature sensors (4) of the plurality of electrical connector assemblies (100) are bundled together and electrically connected.

24. A single negative terminal electrically connected to the end of the negative lead of the temperature sensor (4) in one of the plurality of electrical connector assemblies (100), The plurality of electrical connector assemblies (100) further include a plurality of positive terminals that are electrically connected to the ends of the positive leads of the temperature sensors (4), respectively. The charging device according to claim 23, characterized in that the single negative terminal is for insertion into a negative terminal hole in the connector case, and the positive terminal is for insertion into a positive terminal hole in the connector case.

25. A single negative electrode seal ring is fitted onto the negative electrode lead of a temperature sensor (4) in one of the plurality of electrical connector assemblies (100), The present invention further includes a plurality of positive electrode sealing rings that are fitted onto the positive electrode leads of the temperature sensors (4) in the plurality of electrical connector assemblies (100), The charging device according to claim 24, characterized in that the single negative electrode sealing ring is for sealing the negative electrode terminal hole of the connector case, and the positive electrode sealing ring is for sealing the positive electrode terminal hole of the connector case.

26. The charging device according to claim 21, characterized in that the charging device is a charging stand or a charging gun.

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