Electric connection assembly and charging device

Abstract

The invention discloses an electric connection assembly and a charging device. The electrical connection assembly comprises: a sealing member in which a cable via hole and a jack are formed; the cable penetrates through the cable via hole and is in interference fit with the cable via hole; a charging terminal electrically connected to the cable; the temperature sensor is used for detecting the temperature of the charging terminal; the sealing plug is arranged on a lead of the temperature sensor and inserted into the insertion hole of the sealing element in an interference fit mode, the electric connection assembly is suitable for being inserted into an installation hole in a shell of the charging device, the sealing element is used for sealing a rear port of the installation hole, and the sealing plug is extruded between the sealing element and the lead. The sealing plug is used for achieving sealing between the lead and the sealing plug and sealing between the sealing plug and the sealing piece. According to the charging device, the temperature sensor can be quickly assembled on the sealing element of the cable through the sealing plug, so that the temperature sensor can be inserted into the shell of the charging device along with the charging terminal and the cable, and the assembling efficiency is improved.

Description

Technical Field

[0001] The invention relates to an electric connection assembly and a charging device comprising the electric connection assembly. Background Art

[0002] In the prior art, in order to charge the battery pack of a new energy electric vehicle, a charging base suitable for matching with a charging gun needs to be installed on the new energy electric vehicle. In order to increase the charging speed, the charging current needs to be increased. The current charging current is as high as 600A, and it will even be increased to 1000A in the future. When a large current flows through the charging terminal in the charging base, a large amount of heat will be generated, which will cause the temperature of the charging terminal in the charging base to rise sharply. If the temperature rise cannot be controlled in time, it will cause a safety accident, for example, it will burn the charging base or other electrical equipment.

[0003] In the prior art, in order to control the temperature rise of the charging terminal, a lead frame is usually provided in the charging seat and a temperature detector is installed on the lead frame. The temperature detector includes a temperature sensor and a thermal pad wrapped around the outside of the temperature sensor. The thermal pad is in thermal contact with the charging terminal, and the temperature sensor is electrically connected to the lead frame. The existing installation structure of such a temperature detector is very complicated, difficult to assemble, high in cost, and inconvenient to use. Summary of the invention

[0004] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0005] According to one aspect of the present invention, an electrical connection assembly is provided. The electrical connection assembly includes: a sealing member, which is formed with a cable through hole and a socket separated from the cable through hole; a cable, which passes through the cable through hole and is interference-fitted with the cable through hole to achieve a seal between the sealing member and the cable; a charging terminal, which is electrically connected to the cable; a temperature sensor, which is used to detect the temperature of the charging terminal; and a sealing plug, which is set on the lead of the temperature sensor and is inserted into the socket of the sealing member in an interference-fit manner. The electrical connection assembly is suitable for being inserted into the mounting hole on the housing of the charging device, the sealing member is used to seal the rear port of the mounting hole, and the sealing plug is squeezed between the sealing member and the lead to achieve a seal between the lead and the sealing plug and a seal between the sealing plug and the sealing member.

[0006] According to an exemplary embodiment of the present invention, a single insertion hole is formed on the sealing member, and the electrical connection assembly includes a single sealing plug inserted into the single insertion hole, and the single sealing plug is provided on a pair of leads of the temperature sensor.

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

[0008] According to another exemplary embodiment of the present invention, the electrical connection assembly also includes: a rear end cover, suitable for being installed on the rear port of the mounting hole of the shell, and a cable hole and a lead hole are formed on the end wall of the rear end cover, the cable passes through the cable hole, and the pair of leads pass through the lead hole.

[0009] According to another exemplary embodiment of the present invention, a positioning flange is formed on the outer periphery of the rear end of the sealing plug, and the positioning flange abuts against the end wall of the rear end cover, so that the tension applied to the lead is transmitted to the shell via the sealing plug and the rear end cover.

[0010] According to another exemplary embodiment of the present invention, the positioning flange has a front side and a rear side that are opposite to each other in the axial direction of the sealing plug, the rear side of the positioning flange abuts against the inner side of the end wall of the rear end cover, and the front side of the positioning flange abuts against the rear end face of the seal to axially position the seal.

[0011] According to another exemplary embodiment of the present invention, a clamping groove is formed on the peripheral wall of the rear end cover, and the clamping groove is suitable for engaging with a protrusion on the peripheral wall of the rear port of the housing to fix the rear end cover to the housing.

[0012] According to another exemplary embodiment of the present invention, an opening for allowing the sealing plug and the body of the temperature sensor to pass through is formed on the peripheral wall of the rear end cover, and the opening is communicated with the lead hole.

[0013] According to another exemplary embodiment of the present invention, the sealing plug is injection molded onto the leads of the temperature sensor, so that the sealing plug and the temperature sensor form an integral piece.

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

[0015] According to another exemplary embodiment of the present invention, a lead via is formed on the sealing plug, and the lead of the temperature sensor passes through the lead via; the lead of the temperature sensor is interference fit with the lead via of the sealing plug to achieve sealing between the sealing plug and the lead.

[0016] According to another exemplary embodiment of the present invention, the sealing plug comprises: a sealing core formed with a lead wire through hole; and a mounting sleeve sleeved on the sealing core. The lead wire of the temperature sensor passes through the lead wire through hole, the sealing core is squeezed between the lead wire and the mounting sleeve to achieve a seal therebetween, and the mounting sleeve is interference-fitted with the jack of the sealing member to achieve a seal therebetween.

[0017] According to another exemplary embodiment of the present invention, the positioning flange is formed on the outer periphery of the rear end of the mounting sleeve, and the positioning flange abuts against the end wall of the rear end cover; a flange portion is formed on the outer periphery of the front end of the sealing core, and the flange portion abuts against the front end surface of the mounting sleeve.

[0018] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a pair of connecting terminals, which are respectively electrically connected to the ends of a pair of leads of the temperature sensor and led out from the lead holes of the rear end cover, and the connecting terminals are used to be inserted into the terminal holes on the connector housing to mate with matching terminals arranged in the terminal holes.

[0019] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a pair of sealing rings, respectively sleeved on a pair of leads of the temperature sensor extending from the lead holes of the rear end cover, the sealing rings being used to be inserted into the terminal holes of the connector housing to seal the terminal holes of the connector housing.

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

[0021] According to another exemplary embodiment of the present invention, the electrical connection assembly further includes: a heat conductor wrapped around the body of the temperature sensor and in thermal contact with the charging terminal, the heat conductor being used to transfer heat from the charging terminal to the body of the temperature sensor.

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

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

[0024] According to another exemplary embodiment of the present invention, the charging terminal includes a cylindrical body, a circle of mounting grooves is formed on the outer side of the cylindrical body, and the electrical connection assembly also includes a sealing ring installed in the mounting groove; the sealing ring is suitable for being radially squeezed between the cylindrical body of the charging terminal and the inner circumferential wall of the mounting hole of the shell to achieve sealing between the two.

[0025] According to another aspect of the present invention, a charging device is provided. The charging device includes: a housing having a mounting hole formed therein; and the aforementioned electrical connection assembly, which is inserted into the mounting hole. The sealing member is inserted into the rear port of the mounting hole and seals the rear port of the mounting hole, and a pair of leads of the temperature sensor are led out from the rear port of the mounting hole of the housing.

[0026] According to another exemplary embodiment of the present invention, the housing is formed with a plurality of mounting holes, and the charging device includes a plurality of electrical connection components respectively inserted into the plurality of mounting holes.

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

[0028] According to another exemplary embodiment of the present invention, the charging device also includes: a single negative terminal, electrically connected to the end of a negative lead of a temperature sensor among the multiple electrical connection components; and a plurality of positive terminals, electrically connected to the ends of positive leads of the temperature sensors among the multiple electrical connection components, respectively, the single negative terminal is used to be inserted into the negative terminal hole on the connector housing, and the positive terminal is used to be inserted into the positive terminal hole on the connector housing.

[0029] According to another exemplary embodiment of the present invention, the charging device also includes: a single negative electrode sealing ring, which is put onto the negative electrode lead of a temperature sensor in one of the multiple electrical connection components; and multiple positive electrode sealing rings, which are respectively put onto the positive electrode leads of the temperature sensors in the multiple electrical connection components, the single negative electrode sealing ring is used to seal the negative terminal hole of the connector housing, and the positive electrode sealing ring is used to seal the positive terminal hole of the connector housing.

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

[0031] In the aforementioned exemplary embodiments of the present invention, the temperature sensor can be quickly assembled to the seal of the cable through the sealing plug, so that the temperature sensor can be inserted into the housing of the charging device together with the charging terminal and the cable, thereby improving the assembly efficiency.

[0032] In addition, in some of the aforementioned exemplary embodiments of the present invention, the positioning flange on the sealing plug abuts against the rear end cover, which can effectively prevent the tension applied to the lead of the temperature sensor from being transmitted to the body of the temperature sensor, so that the body of the temperature sensor will not be affected by the tension.

[0033] 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

[0034] Figure 1 An exploded schematic diagram showing a charging device according to a first embodiment of the present invention; Figure 2 An exploded cross-sectional view showing a charging device according to a first embodiment of the present invention; Figure 3 An assembled cross-sectional view showing a charging device according to a first embodiment of the present invention; Figure 4 A perspective schematic diagram showing an electrical connection assembly of a charging device according to a first embodiment of the present invention; Figure 5 A cross-sectional view showing an electrical connection assembly of a charging device according to a first embodiment of the present invention; Figure 6 An exploded schematic diagram showing an electrical connection assembly of a charging device according to a first embodiment of the present invention; Figure 7 A perspective schematic diagram showing a temperature sensor and a sealing plug of an electrical connection assembly according to a first embodiment of the present invention; Figure 8 An exploded schematic diagram showing a temperature sensor and a sealing plug of an electrical connection assembly according to a second embodiment of the present invention; Fig. 9 A schematic diagram showing the assembly of a temperature sensor and a sealing plug of an electrical connection assembly according to a second embodiment of the present invention; Fig.10 A perspective schematic diagram showing an electrical connection assembly of a charging device according to a third embodiment of the present invention; Fig.11 A cross-sectional view showing an electrical connection assembly of a charging device according to a third embodiment of the present invention; Fig.12 A perspective schematic diagram showing a temperature sensor and a sealing plug of an electrical connection assembly according to a third embodiment of the present invention; Fig.13 A cross-sectional view showing a temperature sensor and a sealing plug of an electrical connection assembly according to a third embodiment of the present invention; Fig.14An exploded schematic diagram showing a temperature sensor and a sealing plug of an electrical connection assembly according to a third embodiment of the present invention; Fig.15 An exploded cross-sectional view showing a temperature sensor and a sealing plug of an electrical connection assembly according to a third embodiment of the present invention. DETAILED DESCRIPTION

[0035] 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.

[0036] 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.

[0037] According to an overall technical concept of the present invention, an electrical connection assembly is provided. The electrical connection assembly includes: a seal, which is formed with a cable through hole and a socket separated from the cable through hole; a cable, which passes through the cable through hole and is interference-fitted with the cable through hole to achieve a seal between the seal and the cable; a charging terminal, which is electrically connected to the cable; a temperature sensor, which is used to detect the temperature of the charging terminal; and a sealing plug, which is set on the lead of the temperature sensor and is inserted into the socket of the seal in an interference-fit manner. The electrical connection assembly is suitable for being inserted into a mounting hole on the housing of a charging device, and the seal is used to seal the rear port of the mounting hole. The sealing plug is squeezed between the seal and the lead to achieve a seal between the lead and the sealing plug and a seal between the sealing plug and the seal.

[0038] According to another general technical concept of the present invention, a charging device is provided. The charging device includes: a housing formed with a mounting hole; and the aforementioned electrical connection assembly, which is inserted into the mounting hole. The sealing member is inserted into the rear port of the mounting hole and seals the rear port of the mounting hole, and a pair of leads of the temperature sensor are led out from the rear port of the mounting hole of the housing.

[0039] Figures 1 to 7 The first embodiment of the present invention is shown. Figure 1 An exploded schematic diagram showing a charging device according to a first embodiment of the present invention; Figure 2 An exploded cross-sectional view showing a charging device according to a first embodiment of the present invention; Figure 3An assembled cross-sectional view showing a charging device according to a first embodiment of the present invention; Figure 4 A perspective schematic diagram showing an electrical connection assembly 100 of a charging device according to a first embodiment of the present invention; Figure 5 A cross-sectional view showing an electrical connection assembly 100 of a charging device according to a first embodiment of the present invention; Figure 6 An exploded schematic diagram showing an electrical connection assembly 100 of a charging device according to a first embodiment of the present invention; Figure 7 A perspective schematic diagram showing a temperature sensor 4 and a sealing plug 5 of an electrical connection assembly 100 according to a first embodiment of the present invention.

[0040] like Figures 1 to 7 As shown, in an exemplary embodiment of the present invention, an electrical connection assembly 100 is disclosed. The electrical connection assembly 100 includes: a seal 1, a cable 2, a charging terminal 3, a temperature sensor 4 and a sealing plug 5. The seal 1 is formed with a cable through hole 101 and a plug hole 102 isolated from the cable through hole 101. The cable 2 passes through the cable through hole 101 and is interference-fitted with the cable through hole 101 to achieve a seal between the seal 1 and the cable 2. The charging terminal 3 is electrically connected to the cable 2. The temperature sensor 4 is used to detect the temperature of the charging terminal 3. The sealing plug 5 is set on the lead 41 of the temperature sensor 4 and is inserted into the plug hole 102 of the seal 1 in an interference fit manner. The electrical connection assembly 100 is suitable for being inserted into the mounting hole 90 on the housing 9 of the charging device, and the seal 1 is used to seal the rear port 901 of the mounting hole 90. The sealing plug 5 is squeezed between the seal 1 and the lead 41 to achieve a seal between the lead 41 and the sealing plug 5 and a seal between the sealing plug 5 and the seal 1.

[0041] like Figures 1 to 7 As shown, in the illustrated embodiment, a single insertion hole 102 is formed on the sealing member 1, and the electrical connection assembly 100 includes a single sealing plug 5 inserted into the single insertion hole 102, and the single sealing plug 5 is set on a pair of leads 41 of the temperature sensor 4. In this way, the assembly and sealing of the pair of leads 41 can be achieved simultaneously by the single sealing plug 5.

[0042] However, the present invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment of the present invention, two plug holes 102 may be formed on the sealing member 1, and the electrical connection assembly 100 may include two sealing plugs 5 respectively inserted into the two plug holes 102, and the two sealing plugs 5 are respectively provided on a pair of leads 41 of the temperature sensor 4. In this way, the assembly and sealing of the pair of leads 41 can be achieved by the two sealing plugs 5, respectively.

[0043] like Figures 1 to 7As shown, in the illustrated embodiment, the electrical connection assembly 100 further includes a rear end cover 6. The rear end cover 6 is adapted to be mounted on a rear port 901 of a mounting hole 90 of a housing 9. A cable hole 601 and a lead hole 602 are formed on an end wall 61 of the rear end cover 6, the cable 2 passes through the cable hole 601, and a pair of lead wires 41 pass through the lead hole 602.

[0044] like Figures 1 to 7 As shown, in the illustrated embodiment, a positioning flange 5a is formed on the outer periphery of the rear end of the sealing plug 5, and the positioning flange 5a abuts against the inner side of the end wall 61 of the rear end cover 6, so that the tension applied to the lead 41 is transmitted to the housing 9 via the sealing plug 5 and the rear end cover 6. In this way, the tension applied to the lead 41 can be effectively prevented from being transmitted to the body 40 of the temperature sensor 4, so that the body 40 of the temperature sensor 4 will not be affected by the tension applied to the lead 41.

[0045] like Figures 1 to 7 As shown, in the illustrated embodiment, the positioning flange 5a has a front side and a rear side that are opposite to each other in the axial direction of the sealing plug 5, the rear side of the positioning flange 5a abuts against the inner side 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 face of the seal 1 to axially position the seal 1.

[0046] like Figures 1 to 7 As shown, in the illustrated embodiment, a slot 6 a is formed on the peripheral wall 62 of the rear end cover 6 , and the slot 6 a is suitable for engaging with a protrusion 9 a on the peripheral wall of the rear port 901 of the housing 9 to fix the rear end cover 6 to the housing 9 .

[0047] like Figures 1 to 7 As shown, in the illustrated embodiment, an opening 603 is formed on the peripheral wall 62 of the rear end cover 6 to allow the sealing plug 5 and the body 40 of the temperature sensor 4 to pass through, and the opening 603 is communicated with the lead hole 602. In this way, the temperature sensor 4 can be assembled to the sealing member 1 and the rear end cover 6 after the connection terminal 7 is crimped onto the end of the lead wire 41.

[0048] like Figures 1 to 7 As shown, in the illustrated embodiment, the sealing plug 5 is injection molded onto a pair of leads 41 of the temperature sensor 4, so that the sealing plug 5 and the temperature sensor 4 become an integral piece.

[0049] Figure 8 and Fig. 9 A second embodiment of the present invention is shown. Figure 8 An exploded schematic diagram showing a temperature sensor 4 and a sealing plug 5 of an electrical connection assembly 100 according to a second embodiment of the present invention; Fig. 9 A schematic diagram showing the assembly of the temperature sensor 4 and the sealing plug 5 of the electrical connection assembly 100 according to the second embodiment of the present invention is shown.

[0050] Figure 8 and Fig. 9 The second embodiment shown is Figures 1 to 7 The first embodiment shown differs only in the way in which the sealing plug 5 is arranged on the lead 41 .

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

[0052] like Figure 8 and Fig. 9 As shown, in the illustrated embodiment, a lead through hole 501 is formed on the sealing plug 5, and the lead 41 of the temperature sensor 4 passes through the lead through hole 501. The lead 41 of the temperature sensor 4 is interference-fitted with the lead through hole 501 of the sealing plug 5 to achieve sealing between the sealing plug 5 and the lead 41.

[0053] Figures 10 to 15 The third embodiment of the present invention is shown. Fig.10 A perspective schematic diagram showing an electrical connection assembly 100 of a charging device according to a third embodiment of the present invention; Fig.11 A cross-sectional view showing an electrical connection assembly 100 of a charging device according to a third embodiment of the present invention; Fig.12 A three-dimensional schematic diagram showing a temperature sensor 4 and a sealing plug 5 of an electrical connection assembly 100 according to a third embodiment of the present invention; Fig.13 A cross-sectional view showing a temperature sensor 4 and a sealing plug 5 of an electrical connection assembly 100 according to a third embodiment of the present invention; Fig.14 An exploded schematic diagram showing a temperature sensor 4 and a sealing plug 5 of an electrical connection assembly 100 according to a third embodiment of the present invention; Fig.15 An exploded cross-sectional view showing a temperature sensor 4 and a sealing plug 5 of an electrical connection assembly 100 according to a third embodiment of the present invention.

[0054] Figures 10 to 15 The third embodiment shown is Figures 1 to 7 The first embodiment shown differs only in the structure of the sealing plug 5 .

[0055] like Figures 10 to 15 As shown, in the illustrated embodiment, the sealing plug 5 includes: a sealing core 51 and a mounting sleeve 52. The sealing core 51 is formed with a lead wire through hole 501. The mounting sleeve 52 is sleeved on the sealing core 51. The lead wire 41 of the temperature sensor 4 passes through the lead wire through hole 501, and the sealing core 51 is squeezed between the lead wire 41 and the mounting sleeve 52 to achieve a seal therebetween. The mounting sleeve 52 is interference-fitted with the insertion hole 102 of the sealing member 1 to achieve a seal between the mounting sleeve 52 and the sealing member 1.

[0056] like Figures 10 to 15 As shown, in the illustrated embodiment, a positioning flange 5a is formed on the outer periphery of the rear end of the mounting sleeve 52, and the positioning flange 5a abuts against the end wall 61 of the rear end cover 6. A flange portion 5b is formed on the outer periphery of the front end of the sealing core 51, and the flange portion 5b abuts against the front end surface of the mounting sleeve 52. In this way, the pulling force applied to the lead wire 41 can be prevented from being transmitted to the body 40 of the temperature sensor 4.

[0057] like Figures 1 to 15 As shown, in the illustrated embodiment, the electrical connection assembly 100 further includes a pair of connection terminals 7. The pair of connection terminals 7 are respectively electrically connected to the ends of a pair of lead wires 41 of the temperature sensor 4 that are led out from the lead wire holes 602 of the rear end cover 6. The connection terminals 7 are used to be inserted into the terminal holes (not shown) on the connector housing (not shown) to mate with the mating terminals (not shown) provided in the terminal holes.

[0058] like Figures 1 to 15 As shown, in the illustrated embodiment, the electrical connection assembly 100 further includes a pair of sealing rings 8. The pair of sealing rings 8 are respectively sleeved on a pair of leads 41 of the temperature sensor 4 that are led out from the lead holes 602 of the rear end cover 6. The sealing rings 8 are used to be inserted into the terminal holes of the connector housing to seal the terminal holes of the connector housing.

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

[0060] like Figures 1 to 15 As shown, in the illustrated embodiment, the electrical connection assembly 100 further includes a heat conductor (not shown), which is wrapped around the body 40 of the temperature sensor 4 and is in thermal contact with the charging terminal 3. The heat conductor is used to transfer the heat of the charging terminal 3 to the body 40 of the temperature sensor 4.

[0061] like Figures 1 to 15 As shown, in the illustrated embodiment, the rear end portion 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 portion 31 of the charging terminal 3 .

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

[0063] like Figures 1 to 15As shown, in the illustrated embodiment, the charging terminal 3 includes a cylindrical body 30, a circle of mounting grooves 3a are formed on the outer side of the cylindrical body 30, and the electrical connection assembly 100 also includes a sealing ring 3b installed in the mounting groove 3a. The sealing ring 3b is suitable for being radially squeezed between the cylindrical body 30 of the charging terminal 3 and the inner peripheral wall of the mounting hole 90 of the housing 9 to achieve sealing between the two.

[0064] like Figures 1 to 15 As shown, in another exemplary embodiment of the present invention, a charging device is also disclosed. The charging device includes: a housing 9 and an electrical connection assembly 100. A mounting hole 90 is formed in the housing 9. The electrical connection assembly 100 is inserted into the mounting hole 90. The sealing member 1 is inserted into the rear port 901 of the mounting hole 90 and seals the rear port 901 of the mounting hole 90, and a pair of leads 41 of the temperature sensor 4 are led out from the rear port 901 of the mounting hole 90 of the housing 9.

[0065] like Figures 1 to 15 As shown, in the illustrated embodiment, the housing 9 is formed with a plurality of mounting holes 90 , and the charging device includes a plurality of electrical connection components 100 that are respectively inserted into the plurality of mounting holes 90 .

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

[0067] like Figures 1 to 15 As shown, 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 one of the temperature sensors 4 in the plurality of electrical connection assemblies 100. The plurality of positive terminals are electrically connected to the ends of the positive leads of the temperature sensors 4 in the plurality of electrical connection assemblies 100, respectively. The single negative terminal is used to be inserted into a negative terminal hole (not shown) on a connector housing (not shown), and the positive terminal is used to be inserted into a positive terminal hole (not shown) on the connector housing.

[0068] like Figures 1 to 15 As shown, in the illustrated embodiment, the charging device further includes: a single negative electrode sealing ring (not shown) and multiple positive electrode sealing rings (not shown). The single negative electrode sealing ring is fitted onto the negative electrode lead of one of the temperature sensors 4 in the multiple electrical connection assemblies 100. The multiple positive electrode sealing rings are respectively fitted onto the positive electrode leads of the temperature sensors 4 in the multiple electrical connection assemblies 100. The single negative electrode sealing ring is used to seal the negative terminal hole of the connector housing, and the positive electrode sealing ring is used to seal the positive terminal hole of the connector housing.

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

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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. An electrical connection assembly, characterized in that: include: A sealing member (1) having a cable through hole (101) and a plug hole (102) separated from the cable through hole (101); A cable (2) passes through the cable through hole (101) and is interference-fitted with the cable through hole (101) to achieve sealing between the sealing element (1) and the cable (2); A charging terminal (3) electrically connected to the cable (2); a temperature sensor (4) for detecting the temperature of the charging terminal (3); and The sealing plug (5) is arranged on the lead wire (41) of the temperature sensor (4) and is inserted into the insertion hole (102) of the sealing member (1) in an interference fit manner. The electrical connection assembly (100) is suitable for being inserted into a mounting hole (90) on a housing (9) of a charging device, and the sealing member (1) is used for sealing a rear port (901) of the mounting hole (90). The sealing plug (5) is squeezed between the sealing member (1) and the lead wire (41) to achieve sealing between the lead wire (41) and the sealing plug (5) and sealing between the sealing plug (5) and the sealing member (1).

2. The electrical connection assembly according to claim 1, characterized in that: A single insertion hole (102) is formed on the sealing member (1), and the electrical connection assembly (100) comprises a single sealing plug (5) inserted into the single insertion hole (102), and the single sealing plug (5) is arranged on a pair of leads (41) of the temperature sensor (4).

3. The electrical connection assembly according to claim 1, characterized in that: Two insertion holes (102) are formed on the sealing member (1), and the electrical connection assembly (100) comprises two sealing plugs (5) respectively inserted into the two insertion holes (102), and the two sealing plugs (5) are respectively arranged on a pair of leads (41) of the temperature sensor (4).

4. The electrical connection assembly according to claim 1, characterized in that: Also includes: A rear end cover (6) is adapted to be mounted on a rear port (901) of a mounting hole (90) of the housing (9), A cable hole (601) and a lead hole (602) are formed on the end wall (61) of the rear end cover (6); the cable (2) passes through the cable hole (601), and a pair of lead wires (41) of the temperature sensor (4) pass through the lead hole (602).

5. The electrical connection assembly according to claim 4, characterized in that: A positioning flange (5a) is formed on the outer periphery of the rear end of the sealing plug (5), and the positioning flange (5a) abuts against the end wall (61) of the rear end cover (6), so that the tension applied to the lead wire (41) is transmitted to the housing (9) via the sealing plug (5) and the rear end cover (6).

6. The electrical connection assembly according to claim 5, characterized in that: The positioning flange (5a) has a front side and a rear side that are opposite to each other in the axial direction of the sealing plug (5); the rear side of the positioning flange (5a) abuts against the inner side 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 face of the sealing member (1) to axially position the sealing member (1).

7. The electrical connection assembly according to claim 4, characterized in that: A slot (6a) is formed on the peripheral wall (62) of the rear end cover (6), and the slot (6a) is suitable for engaging with a protrusion (9a) on the peripheral wall of the rear port (901) of the shell (9) to fix the rear end cover (6) to the shell (9).

8. The electrical connection assembly according to claim 4, characterized in that: An opening (603) is formed on the peripheral wall (62) of the rear end cover (6) to allow the sealing plug (5) and the body (40) of the temperature sensor (4) to pass through, and the opening (603) is communicated with the lead hole (602).

9. The electrical connection assembly according to any one of claims 1 to 8, characterized in that: The sealing plug (5) is injection-molded onto the lead wire (41) of the temperature sensor (4), so that the sealing plug (5) and the temperature sensor (4) form an integrated part.

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

11. The electrical connection assembly according to claim 10, characterized in that: A lead wire through hole (501) is formed on the sealing plug (5), and a lead wire (41) of the temperature sensor (4) passes through the lead wire through hole (501); The lead wire (41) of the temperature sensor (4) is interference-fitted with the lead wire through hole (501) of the sealing plug (5) to achieve sealing between the sealing plug (5) and the lead wire (41).

12. The electrical connection assembly according to any one of claims 4 to 8, characterized in that: The sealing plug (5) comprises: A sealing core (51) formed with a lead via (501); and The mounting sleeve (52) is mounted on the sealing core (51). The lead wire (41) of the temperature sensor (4) passes through the lead wire through hole (501), and the sealing core (51) is squeezed between the lead wire (41) and the mounting sleeve (52) to achieve sealing between the two. The mounting sleeve (52) is interference-fitted with the insertion hole (102) of the sealing member (1) to achieve sealing between the mounting sleeve (52) and the sealing member (1).

13. The electrical connection assembly according to claim 12, characterized in that: A positioning flange (5a) is formed on the outer periphery of the rear end of the mounting sleeve (52), and the positioning flange (5a) abuts against the end wall (61) of the rear end cover (6); A flange portion (5b) is formed on the outer periphery of the front end of the sealing core (51), and the flange portion (5b) abuts against the front end surface of the mounting sleeve (52).

14. The electrical connection assembly according to claim 4, characterized in that: Also includes: A pair of connection terminals (7) are respectively electrically connected to the ends of a pair of lead wires (41) of the temperature sensor (4) and led out from the lead wire holes (602) of the rear end cover (6), The connecting terminal (7) is used to be inserted into a terminal hole on a connector housing so as to mate with a matching terminal arranged in the terminal hole.

15. The electrical connection assembly according to claim 14, characterized in that: Also includes: A pair of sealing rings (8) are respectively mounted on a pair of leads (41) of the temperature sensor (4) and led out from the lead holes (602) of the rear end cover (6). The sealing ring (8) is used to be inserted into the terminal hole of the connector housing to seal the terminal hole of the connector housing.

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

17. The electrical connection assembly according to claim 1, characterized in that: Also includes: a heat conducting member, wrapped around the body (40) of the temperature sensor (4) and in thermal contact with the charging terminal (3), The heat conducting member is used to transfer the heat of the charging terminal (3) to the body (40) of the temperature sensor (4).

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

19. The electrical connection assembly according to claim 1, characterized in that: The rear end portion (31) of the charging terminal (3) is crimped or welded to the cable (2), and the body (40) of the temperature sensor (4) faces the rear end portion (31) of the charging terminal (3) and is used to detect the temperature of the rear end portion (31) of the charging terminal (3).

20. The electrical connection assembly according to claim 1, characterized in that: The charging terminal (3) comprises a cylindrical body (30), a circle of mounting grooves (3a) being formed on the outer side of the cylindrical body (30), and the electrical connection assembly (100) further comprises a sealing ring (3b) mounted in the mounting groove (3a); The sealing ring (3b) is suitable for being radially pressed between the cylindrical body (30) of the charging terminal (3) and the inner peripheral wall of the mounting hole (90) of the housing (9) to achieve sealing between the two.

21. A charging device, characterized in that: include: A housing (9) formed with a mounting hole (90); and The electrical connection assembly (100) according to any one of claims 1 to 20 is inserted into the mounting hole (90). The sealing member (1) is inserted into the rear port (901) of the mounting hole (90) and seals the rear port (901) of the mounting hole (90), and a pair of lead wires (41) of the temperature sensor (4) are led out from the rear port (901) of the mounting hole (90) of the housing (9).

22. The charging device according to claim 21, characterized in that: The housing (9) is formed with a plurality of mounting holes (90), and the charging device comprises a plurality of electrical connection components (100) respectively inserted into 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 a negative lead and a positive lead, and the ends of the negative leads of the temperature sensors (4) of the plurality of electrical connection assemblies (100) are combined and electrically connected together.

24. The charging device according to claim 23, characterized in that Also includes: a single negative terminal electrically connected to the end of a negative lead of a temperature sensor (4) of one of the plurality of electrical connection assemblies (100); and A plurality of positive terminals are electrically connected to the ends of the positive leads of the temperature sensors (4) in the plurality of electrical connection assemblies (100), respectively. The single negative terminal is used for being inserted into the negative terminal hole on the connector housing, and the positive terminal is used for being inserted into the positive terminal hole on the connector housing.

25. The charging device according to claim 24, characterized in that Also includes: A single negative electrode sealing ring is sleeved onto a negative electrode lead of a temperature sensor (4) of one of the plurality of electrical connection assemblies (100); and A plurality of positive electrode sealing rings are respectively mounted on the positive electrode leads of the temperature sensors (4) in the plurality of electrical connection components (100). The single negative electrode sealing ring is used to seal the negative electrode terminal hole of the connector housing, and the positive electrode sealing ring is used to seal the positive electrode terminal hole of the connector housing.

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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