Terminal assembly, connector, and connector assembly

Abstract

The utility model discloses a terminal assembly, connector and connector assembly. The terminal assembly has the front end and rear end opposite in its longitudinal direction, left and right two sides opposite in its lateral direction and upper and lower two sides opposite in its height direction, and includes: rear terminal, is located the rear end of terminal assembly, and is suitable for fixed to the shell of connector, and front terminal, is located the front end of terminal assembly. The front terminal includes: two rows of elastic arms, interval opposite in the lateral direction and arrange along the height direction respectively, and connecting portion, links with the rear end of two rows of elastic arms and fixedly electrically connected to rear terminal. Two rows of elastic arms are suitable for inserting into the counter -terminal of counter -terminal insertion slot and respectively with the inner wall surface electric contact of left and right two sides of counter -terminal insertion slot. The terminal assembly of the utility model has two rows of elastic arms for electric contact with counter -terminal simultaneously, can improve the current -carrying capacity of terminal assembly in compact space.

Description

Technical Field

[0001] This utility model relates to a terminal assembly, a connector including the terminal assembly, and a connector assembly including the connector. Background Technology

[0002] In existing technologies, the electrical contact area between connector terminals and mating terminals is limited, which cannot meet the requirements for high-voltage and high-current transmission. Furthermore, in existing technologies, connector terminals can only be connected to the positive and negative poles, failing to meet the need for flexible electrical connections. Utility Model Content

[0003] The purpose of this utility model is to solve at least one aspect of the aforementioned problems and defects existing in the prior art.

[0004] According to one aspect of the present invention, a terminal assembly is provided. The terminal assembly has a front end and a rear end opposite each other in its longitudinal direction, left and right sides opposite each other in its transverse direction, and upper and lower sides opposite each other in its height direction. The terminal assembly includes: a rear terminal located at the rear end of the terminal assembly and adapted to be fixed to a connector housing; and a front terminal located at the front end of the terminal assembly. The front terminal includes: two rows of resilient arms spaced apart opposite each other in the transverse direction and arranged respectively along the height direction; and a connecting portion connected to the rear ends of the two rows of resilient arms and fixedly electrically connected to the rear terminal. The two rows of resilient arms are adapted to be inserted into mating slots of mating terminals and to make electrical contact with the inner wall surfaces of the left and right sides of the mating slots in the transverse direction, respectively.

[0005] According to an exemplary embodiment of the present invention, the front terminal further includes a pair of elastic portions, the pair of elastic portions extending from the front end of the front end to the rear end of the front end respectively, and spaced apart from each other in the lateral direction; the two rows of elastic arms are respectively formed at the front end of the pair of elastic portions, and the connecting portion is connected between the rear ends of the pair of elastic portions.

[0006] According to another exemplary embodiment of the present invention, the rear terminal includes: a base fixedly electrically connected to the rear side of the connection portion; and at least one side plate connected to the base and extending rearward, and adapted to be electrically connected to an electrical transmission element.

[0007] According to another exemplary embodiment of the present invention, the rear terminal includes two side plates, which are respectively connected to the left and right sides of the base. The two side plates are respectively formed with opposing through holes for installing positioning pins to fix the rear terminal to the housing of the connector.

[0008] According to another exemplary embodiment of the present invention, the rear terminal includes: a base fixedly electrically connected to the rear side of the connector; and a cantilever portion connected to the base and located on the rear side of the base. The cantilever portion includes: an electrical connection plate formed at the free end of the cantilever portion, extending along the longitudinal direction and adapted for electrical connection to an electrical transmission element; and a tortuous structure connected between the base and the electrical connection plate and extending along a tortuous path, such that the electrical connection plate can float relative to the base.

[0009] According to another exemplary embodiment of the present invention, the longitudinal cross-section of the tortuous structure includes a Z-shaped structure or a serpentine structure.

[0010] According to another exemplary embodiment of the present invention, the cantilever portion includes a pair of electrical connection plates, which are respectively located on the upper and lower sides of the free end of the cantilever portion and are adapted to be connected to the two electrical transmission components respectively.

[0011] According to another exemplary embodiment of the present invention, the pair of electrical connection plates are respectively formed with opposing through holes for mounting positioning pins to fix the rear terminal to the housing of the connector by means of the positioning pins.

[0012] According to another exemplary embodiment of the present invention, the terminal assembly further includes: an elastic support member, clamped between the two rows of elastic arms, for applying an auxiliary contact force to the two rows of elastic arms to ensure reliable electrical contact between the two rows of elastic arms and the inner wall surface of the mating slot.

[0013] According to another aspect of the present invention, a terminal assembly is provided. The terminal assembly has a front end and a rear end opposite each other in its longitudinal direction, left and right sides opposite each other in its transverse direction, and upper and lower sides opposite each other in its height direction. The terminal assembly includes a pair of terminals, each terminal including: a fixing portion located at the rear end of the terminal and extending along the longitudinal and height directions; and an elastic portion located at the front end of the terminal and extending obliquely to the fixing portion. The fixing portions of the pair of terminals abut against each other and are fixed together, and the elastic portions of the pair of terminals are opposite each other in the transverse direction. A row of elastic arms is formed at the front end of the elastic portion, the row of elastic arms being arranged along the height direction and adapted to be inserted into a mating slot of a mating terminal. The two rows of elastic arms of the pair of terminals are adapted to make electrical contact with two inner wall surfaces on the left and right sides of the mating slot in the transverse direction, respectively.

[0014] According to an exemplary embodiment of the present invention, the terminal assembly further includes: at least one heat sink disposed on the fixing portion of one or both of the pair of terminals to dissipate heat from the pair of terminals.

[0015] According to another exemplary embodiment of the present invention, the at least one heat sink is a metal plate heat sink, which is attached to the side of the fixing part to form heat conduction and electrical connection.

[0016] According to another exemplary embodiment of the present invention, the terminal assembly further includes: a riveting member or fastener passing through the fixing portion of the pair of terminals and the at least one heat sink to secure the pair of terminals together and to secure the at least one heat sink to the pair of terminals.

[0017] According to another exemplary embodiment of the present invention, the terminal assembly further includes a temperature detection device, which includes: a temperature sensor; and an insulating thermally conductive element connected between the temperature sensor and the rear terminal or between the temperature sensor and the fixing part to form heat conduction and electrically isolate the temperature sensor from the rear terminal or the fixing part.

[0018] According to another exemplary embodiment of the present invention, the temperature detection device further includes an insulating housing mounted on the rear terminal or the fixing portion. The temperature sensor and the insulating thermally conductive element are at least partially inserted into the insulating housing.

[0019] According to another exemplary embodiment of the present invention, the temperature sensor includes: a thermally conductive housing abutting one side of the insulating thermally conductive element; a temperature sensing element held in the thermally conductive housing and forming a thermal conduction relationship with the thermally conductive housing; and a lead wire connected to the temperature sensing element, extending from the rear end of the thermally conductive housing and the insulating housing, and spaced apart from the rear terminal or the fixing portion. The temperature detection device further includes fasteners passing through corresponding through holes located on the insulating housing, the thermally conductive housing, the insulating thermally conductive element, and the rear terminal or the fixing portion, respectively, to fix the insulating housing, the temperature sensor, and the insulating thermally conductive element to the rear terminal or the fixing portion.

[0020] According to another exemplary embodiment of the present invention, the temperature sensor is held in the insulating housing, the lead of the temperature sensor extends out of the insulating housing from the rear end of the insulating housing and is spaced apart from the rear terminal or the fixing part; the insulating thermally conductive element is clamped and fixed between the temperature sensor and the rear terminal or the fixing part.

[0021] According to another aspect of the present invention, a connector is provided. The connector includes: a housing having a front end and a rear end opposite each other in its longitudinal direction, left and right sides opposite each other in its transverse direction, and upper and lower sides opposite each other in its height direction; and the aforementioned terminal assembly, which is inserted into the housing.

[0022] According to an exemplary embodiment of the present invention, the housing includes: a main housing portion; and a mating plug extending forward from the front end of the main housing portion and having two lateral openings opposite each other. The mating plug is adapted to be inserted into a mating slot of a mating terminal of a mating component. Two rows of resilient arms of the terminal assembly are accommodated in the mating plug and protrude from the two side openings to simultaneously make electrical contact with the inner wall surface of the mating slot. The rear terminal or the fixing portion of the terminal assembly is fixed in the main housing portion.

[0023] According to another exemplary embodiment of the present invention, the housing includes three mating plugs arranged side by side along the transverse direction and adapted to be inserted into the three mating slots of the three mating terminals of the mating component respectively; the connector includes three terminal assemblies, the front ends of the three terminal assemblies being inserted into the three mating plugs respectively, and the three terminal assemblies serving as a positive terminal assembly, a negative terminal assembly, and a neutral terminal assembly respectively.

[0024] According to another exemplary embodiment of the present invention, the neutral terminal assembly is located between the positive terminal assembly and the negative terminal assembly.

[0025] According to another exemplary embodiment of the present invention, the neutral terminal assembly is the aforementioned terminal assembly, and the connector further includes: a pair of first electrical transmission components, which are respectively electrically connected to the rear ends of the positive terminal assembly and the negative terminal assembly, and are respectively located on the upper and lower sides of the connector; and a pair of second electrical transmission components, which are respectively electrically connected to the pair of electrical connection plates of the neutral terminal assembly, and are respectively located on the upper and lower sides of the connector.

[0026] According to another exemplary embodiment of the present invention, the first electrical transmission element is a cable, and / or the second electrical transmission element is a circuit board.

[0027] According to another exemplary embodiment of the present invention, the housing further includes: a pair of protective plugs, each extending forward from the front end of the main housing portion and adapted to be inserted into a pair of slots of the mating components. The mating plugs are located between the pair of protective plugs.

[0028] According to another exemplary embodiment of the present invention, the front end of the protective plug extends beyond the mating plug and / or the front end of the protective plug has an inclined guiding feature to guide the mating plug into the mating slot in the correct orientation.

[0029] According to another exemplary embodiment of the present invention, the connector further includes: a pair of grounding terminals, respectively disposed on opposite sides of the pair of protective plugs, and adapted to be electrically connected to the mating grounding terminals of the mating components.

[0030] According to another aspect of the present invention, a connector is provided. The connector includes: a housing having a front end and a rear end opposite each other in its longitudinal direction; and the aforementioned terminal assembly, inserted into the housing. The terminal assembly includes: a pair of heat sinks, respectively connected to opposite sides of the fixing portions of the pair of terminals, and clamped within the housing.

[0031] According to an exemplary embodiment of the present invention, the connector further includes a locking member, detachably mounted on the housing and stopped at the rear side of the pair of heat sinks to retain the terminal assembly in the housing.

[0032] According to another aspect of the present invention, a connector assembly is provided. The connector assembly includes: the aforementioned connector; and a mating component. The mating component includes: a mating terminal for mating with the terminal assembly.

[0033] According to an exemplary embodiment of the present invention, the mating component includes: three mating terminals arranged side-by-side along the transverse side of the mating component; and an insulating isolator inserted between adjacent mating terminals for electrically isolating the adjacent mating terminals. The connector includes three terminal assemblies, each of which mates with one of the three mating terminals.

[0034] In the foregoing exemplary embodiments of the present invention, the terminal assembly has two rows of resilient arms for simultaneous electrical contact with mating terminals, which can greatly improve the current carrying capacity of the terminal assembly and meet the compact space requirements.

[0035] Furthermore, in some of the exemplary embodiments described above according to the present invention, the front end of the terminal assembly is formed into a clip-like structure, which can provide good elastic contact performance in a compact space, so that the terminal assembly and the mating terminal maintain stable and reliable electrical contact.

[0036] Furthermore, in some of the aforementioned exemplary embodiments according to the present invention, the cantilever portion of the rear end has a tortuous structure, which can extend the total length of the cantilever portion in a smaller space, so that the terminal assembly has good floating ability in a smaller space to compensate for manufacturing and installation errors.

[0037] Furthermore, in some of the exemplary embodiments of the present invention described above, the temperature sensor of the temperature detection device is electrically isolated from the terminal, which can ensure electrical safety and enable the terminal assembly and connector to be better suited for high-voltage applications.

[0038] Furthermore, in some of the exemplary embodiments described above according to the present invention, the connector includes a plurality of terminal assemblies, which can be connected to two or three of the positive, negative and neutral wires according to electrical connection requirements, thereby satisfying flexible electrical connection requirements.

[0039] Other objects and advantages of the present invention will become apparent from the following description of the invention with reference to the accompanying drawings, and will help to provide a comprehensive understanding of the invention. Attached Figure Description

[0040] Figure 1 This is a perspective view of the connector according to the first embodiment of the present invention, viewed from the front. Figure 2 This is a perspective view of the connector according to the first embodiment of the present invention, viewed from the rear. Figure 3 Showing a longitudinal sectional view of the connector according to a first embodiment of the present invention; Figure 4 An exploded view of the connector according to the first embodiment of the present invention is shown; Figure 5 This diagram shows a perspective view of one of the terminal assemblies of a connector according to a first embodiment of the present invention. Figure 6 show Figure 5 An exploded view of the terminal assembly shown; Figure 7 A perspective view of another terminal assembly of the connector according to the first embodiment of the present invention is shown; Figure 8 show Figure 7 A three-dimensional schematic diagram of the rear end of the terminal assembly shown; Figure 9 A perspective view of a connector assembly according to a first embodiment of the present invention is shown; Figure 10 A cross-sectional view of a connector assembly according to a first embodiment of the present invention is shown; Figure 11 This is a perspective view of the connector according to the second embodiment of the present invention, viewed from the front. Figure 12 A perspective view of the connector according to the second embodiment of the present invention, viewed from the rear. Figure 13 Showing a longitudinal sectional view of the connector according to a second embodiment of the present invention; Figure 14 A cross-sectional view of a connector according to a second embodiment of the present invention is shown; Figure 15 A perspective view of one of the terminal assemblies of a connector according to a second embodiment of the present invention is shown; Figure 16 show Figure 15 An exploded view of the terminal assembly shown. Detailed Implementation

[0041] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. In this specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of this utility model with reference to the accompanying drawings is intended to explain the overall concept of this utility model and should not be construed as a limitation thereof.

[0042] Furthermore, in the following detailed description, numerous specific details are set forth for ease of explanation to provide a thorough understanding of the embodiments disclosed herein. However, it will be apparent that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and apparatuses are illustrated to simplify the figures.

[0043] According to a general technical concept of the present invention, a terminal assembly is provided. The terminal assembly has a front end and a rear end opposite each other in its longitudinal direction, left and right sides opposite each other in its transverse direction, and upper and lower sides opposite each other in its height direction. The terminal assembly includes: a rear terminal located at the rear end of the terminal assembly and adapted to be fixed to a connector housing; and a front terminal located at the front end of the terminal assembly. The front terminal includes: two rows of resilient arms spaced apart opposite each other in the transverse direction and arranged respectively along the height direction; and a connecting portion connected to the rear ends of the two rows of resilient arms and fixedly electrically connected to the rear terminal. The two rows of resilient arms are adapted to be inserted into mating slots of mating terminals and make electrical contact with the inner wall surfaces of the left and right sides of the mating slots in the transverse direction, respectively.

[0044] According to another general technical concept of the present invention, a terminal assembly is provided. The terminal assembly has a front end and a rear end opposite each other in its longitudinal direction, left and right sides opposite each other in its transverse direction, and upper and lower sides opposite each other in its height direction. The terminal assembly includes a pair of terminals, each terminal including: a fixing portion located at the rear end of the terminal and extending along the longitudinal and height directions; and an elastic portion located at the front end of the terminal and extending obliquely to the fixing portion. The fixing portions of the pair of terminals abut against each other and are fixed together, and the elastic portions of the pair of terminals are opposite each other in the transverse direction. A row of elastic arms is formed at the front end of the elastic portion, the row of elastic arms being arranged along the height direction and adapted to be inserted into a mating slot of a mating terminal. The two rows of elastic arms of the pair of terminals are adapted to make electrical contact with two inner wall surfaces on the left and right sides of the mating slot in the transverse direction, respectively.

[0045] According to another general technical concept of the present invention, a connector is provided. The connector includes: a housing having a front end and a rear end opposite each other in its longitudinal direction, left and right sides opposite each other in its transverse direction, and upper and lower sides opposite each other in its height direction; and the aforementioned terminal assembly, which is inserted into the housing.

[0046] According to another general technical concept of the present invention, a connector is provided. The connector includes: a housing having a front end and a rear end opposite each other in its longitudinal direction; and the aforementioned terminal assembly, inserted into the housing. The terminal assembly includes: a pair of heat sinks, respectively connected to the opposite sides of the fixing portions of the pair of terminals, and clamped within the housing.

[0047] According to another general technical concept of this utility model, a connector assembly is provided. The connector assembly includes: the aforementioned connector; and a mating component. The mating component includes: a mating terminal, which mates with the terminal assembly.

[0048] First Embodiment Figures 1 to 10 This illustrates a first embodiment according to the present invention. Figure 1 This is a perspective view of the connector according to the first embodiment of the present invention, viewed from the front. Figure 2 This is a perspective view of the connector according to the first embodiment of the present invention, viewed from the rear. Figure 3 Showing a longitudinal sectional view of the connector according to a first embodiment of the present invention; Figure 4 An exploded view of the connector according to the first embodiment of the present invention is shown; Figure 5 This diagram shows a perspective view of one of the terminal components 1 of a connector according to a first embodiment of the present invention. Figure 6 show Figure 5 An exploded view of terminal assembly 1 shown; Figure 7 This shows a perspective view of another terminal assembly 1 of the connector according to the first embodiment of the present invention; Figure 8 show Figure 7 A three-dimensional schematic diagram of the rear terminal 12 of the terminal assembly 1 shown; Figure 9 A perspective view of a connector assembly according to a first embodiment of the present invention is shown; Figure 10 This shows a cross-sectional view of a connector assembly according to a first embodiment of the present invention.

[0049] like Figures 1 to 10 As shown, in an exemplary embodiment of this utility model, a terminal assembly 1 is disclosed for mounting in a connector. The terminal assembly 1 has a front end and a rear end opposite each other in its longitudinal direction Y, left and right sides opposite each other in its transverse direction X, and upper and lower sides opposite each other in its height direction Z. The terminal assembly 1 mainly includes a front terminal 11 and a rear terminal 12. The rear terminal 12 is located at the rear end of the terminal assembly 1 and is adapted to be fixed to the housing 3 of the connector. The front terminal 11 is located at the front end of the terminal assembly 1 and includes two rows of elastic arms 111 and a connecting portion 112.

[0050] Two rows of elastic arms 111 are spaced apart and opposite each other in the transverse X direction, and are arranged in the vertical Z direction respectively. The connecting part 112 is connected to the rear end of the two rows of elastic arms 111 and is fixedly electrically connected to the rear terminal 12. The two rows of elastic arms 111 are adapted to be inserted into the mating slot 510 of the mating terminal 51, and are in electrical contact with the inner wall surfaces of the left and right sides of the mating slot 510 in the transverse X direction respectively.

[0051] The terminal assembly 1 has two rows of elastic arms for simultaneous electrical contact with mating terminals. Compared with the connector terminals in the prior art that make electrical contact with mating terminals through a row of elastic arms, the terminal assembly 1 according to the present invention can increase the electrical contact area and current carrying capacity by at least two times, and can meet the compact space requirements.

[0052] like Figures 1 to 10 As shown, the front terminal 11 also includes a pair of elastic portions 110, which extend from the front end to the rear end of the front terminal 11 and are spaced apart from each other in the transverse X direction. Two rows of elastic arms 111 are formed at the front ends of the pair of elastic portions 110. A connecting portion 112 connects the rear ends of the pair of elastic portions 110.

[0053] The front terminal 11 of the terminal assembly 1 has a clip-like structure, which can provide good elastic contact performance in a compact space. When the elastic part 110 deforms, the elastic part 110 is biased into the internal space of the clip to generate elastic force, thereby ensuring that there is sufficient positive force between the terminal assembly 1 and the mating terminal 51 to maintain stable and reliable electrical contact.

[0054] Furthermore, designing the front terminal 11 as a clip-type structure allows the elastic forces of the elastic parts 110 on the left and right sides to be mutually transmitted and complementary, making the positive forces on the left and right sides more balanced. This prevents the positive force on one side from being too large and the positive force on the other side from being insufficient when the terminal assembly 1 and the mating terminal 51 are misaligned, thus ensuring that both rows of elastic arms 111 maintain stable and reliable electrical contact with the mating terminal 51.

[0055] Optionally, the front terminal 11 and the rear terminal 12 are integral stamped parts, which can reduce manufacturing costs and improve manufacturing efficiency.

[0056] like Figures 1 to 10 As shown, the terminal assembly 1 also includes an elastic support 14, which is clamped between two rows of elastic arms 111 to apply an auxiliary contact force to the two rows of elastic arms 111 to ensure reliable electrical contact between the two rows of elastic arms 111 and the inner wall surface of the mating slot 510.

[0057] The elastic support 14 is made of metal, thus having good mechanical and electrical properties. In addition to applying auxiliary contact force to the two rows of elastic arms 111, it can also increase the conductive cross-sectional area of ​​the terminal assembly 1 and improve the current carrying capacity of the terminal assembly 1.

[0058] The elastic support 14 includes a pair of support arms 141, the rear ends of which are connected, and the front ends of which respectively abut against the inner sides of the two rows of elastic arms 111. Thus, the pair of support arms 141 form a V-shaped clamp structure that opens from back to front, which can not only apply auxiliary contact force to the two rows of elastic arms 111, but also balance the positive forces on the left and right sides.

[0059] Optionally, the mechanical properties of the material used to manufacture the elastic support 14 are superior to those of the material used to manufacture the front terminal 11, and the electrical conductivity of the material used to manufacture the front terminal 11 is superior to that of the material used to manufacture the elastic support 14. For example, the front terminal 11 may be made of copper, and the elastic support 14 may be made of stainless steel, thereby further improving the current carrying capacity and elastic contact performance of the terminal assembly 1.

[0060] Optionally, the elastic support 14 is a one-piece stamped part.

[0061] However, this utility model is not limited to the embodiments shown in the figure. For example, in some other embodiments, the elastic support member 14 may not be provided, and the front terminal 11 may be made of copper alloy to have good mechanical and electrical properties.

[0062] like Figure 5 and Figure 6As shown, in one embodiment, the rear terminal 12 of the terminal assembly 1 includes a base 121 and at least one side plate 122. The base 121 is fixedly electrically connected to the rear side of the connection portion 112. The at least one side plate 122 is connected to the base 121 and extends rearward, and is adapted to be electrically connected to the electrical transmission element 6 (such as...). Figures 2 to 4 (As shown).

[0063] Specifically, the rear terminal 12 includes two side plates 122, which are respectively connected to the left and right sides of the base 121. Each of the two side plates 122 has a corresponding through hole 122a for mounting a positioning pin 7, thereby fixing the rear terminal 12 to the connector housing 3 (e.g., ...) via the positioning pin 7. Figure 3 and Figure 4 (As shown).

[0064] like Figure 7 and Figure 8 As shown, in another embodiment, the rear terminal 12 includes a base 121 and a cantilever 123. The base 121 is fixedly electrically connected to the rear side of the connecting portion 112. The cantilever 123 is connected to the base 121 and located on the rear side of the base 121.

[0065] The cantilever portion 123 includes an electrical connection plate 1231 and a tortuous structure 1232. The electrical connection plate 1231 is formed at the free end of the cantilever portion 123, extends longitudinally Y, and is adapted for electrical connection to an electrical transmission element (not shown). The tortuous structure 1232 connects the base portion 121 and the electrical connection plate 1231 and extends along a tortuous path, allowing the electrical connection plate 1231 to float relative to the base portion 121.

[0066] By setting the tortuous structure 1232, the total length of the cantilever 123 can be extended in a smaller space, so that the terminal assembly 1 has good floating ability in a smaller space to compensate for manufacturing and installation errors.

[0067] In the illustrated embodiment, the longitudinal cross-section of the tortuous structure 1232 includes a serpentine (S-shaped) structure. However, the present invention is not limited to the illustrated embodiment; for example, in other embodiments, the longitudinal cross-section of the tortuous structure 1232 may include a Z-shaped structure.

[0068] like Figure 7 and Figure 8 As shown, the cantilever portion 123 includes a pair of electrical connection plates 1231, which are located on the upper and lower sides of the free end of the cantilever portion 123, respectively, and are adapted to be connected to two electrical transmission components respectively.

[0069] A pair of electrical connection plates 1231 each have corresponding through holes 1231a. The through holes 1231a are used to install positioning pins 7, so as to fix the rear terminal 12 to the connector housing 3 (e.g., ...) via the positioning pins 7. Figure 3 and Figure 4 (As shown).

[0070] like Figure 7 and Figure 8 As shown, the cantilever portion 123 also includes a connecting plate 1233, which is connected between a pair of electrical connecting plates 1231 and extends along the longitudinal direction Y.

[0071] like Figures 1 to 10 As shown, both the connecting part 112 and the base part 121 are plate-shaped structures extending in the transverse X and height Z directions, which simplifies the structure of the terminal assembly 1 and reduces the longitudinal Y dimension of the terminal assembly 1.

[0072] Terminal assembly 1 also includes a temperature detection device 15, which is disposed on the side plate 122 of the rear terminal 12 (e.g., Figure 5 and Figure 6 (as shown) or connecting plate 1233 (as shown) Figure 7 and Figure 8 (As shown). The temperature detection device 15 includes a temperature sensor 151 and an insulating thermally conductive element 152. The insulating thermally conductive element 152 is connected between the temperature sensor 151 and the rear terminal 12 to form heat conduction and to electrically isolate the temperature sensor 151 from the rear terminal 12.

[0073] The temperature detection device 15 also includes an insulating housing 153, which is mounted on the rear terminal 12. The temperature sensor 151 and the insulating heat-conducting element 152 are at least partially inserted into the insulating housing 153.

[0074] Temperature sensor 151, for example, is an NTC (negative temperature coefficient thermistor) temperature sensor, including a thermally conductive housing 1510, a temperature sensing element (not shown), and a lead 1511. The thermally conductive housing 1510 is abutted against one side of an insulating thermally conductive element 152. The temperature sensing element is held within the thermally conductive housing 1510 and forms a thermal conduction connection with it. The lead 1511 is connected to the temperature sensing element, extends rearward from the rear ends of the thermally conductive housing 1510 and the insulating housing 153, and continues rearward. The lead 1511 is spaced apart from a rear terminal 12, thereby being electrically isolated from the rear terminal 12.

[0075] The temperature detection device 15 also includes a fastener 154, which passes through corresponding through holes located on the insulating housing 153, the heat-conducting housing 1510, the insulating heat-conducting element 152, and the rear terminal 12, respectively, to fix the insulating housing 153, the temperature sensor 151, and the insulating heat-conducting element 152 to the rear terminal 12.

[0076] Electrical isolation between the temperature detection device 15 and the rear terminal 12 can prevent electric shock caused by the user touching the lead 1511 of the temperature sensor 151, thus ensuring electrical safety, especially when the terminal assembly 1 and connector are used in high-voltage applications, making the terminal assembly 1 and connector better suited for high-voltage applications.

[0077] The insulating housing 153 further ensures reliable insulation between the temperature sensor 151 and the rear terminal 12, and also provides support and fixation. One end of the insulating housing 153 is supported on the rear terminal 12, and the other end bears the fastening force of the fastener 154, thereby protecting the temperature sensor 151 and the insulating heat-conducting element 152 from excessive pressure.

[0078] However, this invention is not limited to the illustrated embodiments. For example, in other embodiments, the terminal assembly 1 may also include components that will be described below. Figures 11 to 16 The temperature detection device 25 is described.

[0079] like Figures 1 to 10 As shown, in another exemplary embodiment of this utility model, a connector is also disclosed. The connector mainly includes a housing 3 and the aforementioned terminal assembly 1. The housing 3 has a front end and a rear end opposite each other in its longitudinal direction Y, left and right sides opposite each other in its transverse direction X, and upper and lower sides opposite each other in its height direction Z. The terminal assembly 1 is inserted into the housing 3.

[0080] The housing 3 includes a main housing portion 31 and a mating plug 32. The mating plug 32 extends forward from the front end of the main housing portion 31 and has two side openings 321 opposite each other in the transverse direction X. The mating plug 32 is adapted to be inserted into the mating slot 510 of the mating terminal 51 of the mating component 5. The two rows of resilient arms 111 of the terminal assembly 1 are received in the mating plug 32 and protrude from the two side openings 321 respectively, so as to make simultaneous electrical contact with the inner wall surface of the mating slot 510. The rear terminal 12 of the terminal assembly 1 is fixed in the main housing portion 31 by a locating pin 7.

[0081] The housing 3 includes three mating plugs 32 arranged side-by-side along a transverse direction X, and adapted to be inserted into the three mating slots 510 of the three mating terminals 51 of the mating component 5, respectively. The connector includes three terminal assemblies 1, the front ends of which are inserted into the three mating plugs 32, respectively. The three terminal assemblies 1 serve as the positive terminal assembly, the negative terminal assembly, and the neutral terminal assembly, respectively.

[0082] In the illustrated embodiment, the connector adopts as follows: Figure 5 and Figure 6 The terminal assembly 1 shown serves as both the positive and negative terminal components, employing the following... Figure 7 and Figure 8 The terminal assembly 1 shown serves as the neutral terminal assembly. The neutral terminal assembly is located between the positive and negative terminal assemblies to facilitate circuit arrangement. However, this invention is not limited to the illustrated embodiment; for example, in some embodiments, the three terminal assemblies 1 may employ the same structure; in still other embodiments, the neutral terminal assembly may also be located on the left or right side of the connector.

[0083] like Figures 1 to 10 As shown in the illustrated embodiment, the housing 3 further includes a pair of protective plugs 33, which extend forward from the front end of the main housing portion 31 and are adapted to be inserted into a pair of slots 53 of the mating component 5, respectively. A mating plug 32 is located between the pair of protective plugs 33.

[0084] The front end of the protective plug 33 has an inclined guide feature 331 that extends obliquely backward from the front end of the protective plug 33 toward the mating plug 32. Thus, when the connector is inserted into the mating component 5, the inclined guide feature 331 can mate with the slot 53 of the mating component 5 to guide the mating plug 32 into the mating slot 510 in the correct orientation.

[0085] The connector also includes a pair of first electrical transmission elements 61 and a pair of second electrical transmission elements (not shown). The pair of first electrical transmission elements 61 are electrically connected to the rear ends of the positive terminal assembly and the negative terminal assembly, respectively, and are located on the upper and lower sides of the connector. The pair of second electrical transmission elements are electrically connected to a pair of electrical connection plates 1231 of the neutral terminal assembly, respectively, and are located on the upper and lower sides of the connector.

[0086] The first electrical transmission element 61 is, for example, a cable, and the second electrical transmission element is, for example, a circuit board. The first electrical transmission element 61 located on the upper side of the connector is adapted to be electrically connected to the second electrical transmission element on the same side, and the first electrical transmission element 61 located on the lower side of the connector is adapted to be electrically connected to the second electrical transmission element on the same side, so as to facilitate the arrangement of circuits.

[0087] However, the present invention is not limited to the embodiments shown in the figures. For example, in other embodiments, the first electrical transmission element 61 may also be a bus or a circuit board, and / or the second electrical transmission element may also be a flexible bus or a cable.

[0088] like Figures 1 to 10 As shown, in another exemplary embodiment of this utility model, a connector assembly is also disclosed. The connector assembly includes the aforementioned connector and mating component 5. The mating component 5 includes mating terminals 51, which mate with the terminal assembly 1.

[0089] In the illustrated embodiment, the mating component 5 includes three mating terminals 51 and an insulating isolator 52. The three mating terminals 51 are arranged side-by-side along the transverse direction X of the mating component 5. The insulating isolator 52 is inserted between adjacent mating terminals 51 to electrically isolate adjacent mating terminals 51. The connector includes three terminal assemblies 1, each of which mates with one of the three mating terminals 51.

[0090] However, the present invention is not limited to the embodiments shown in the figure. For example, in other embodiments, depending on different electrical connection requirements, the mating component 5 may only be provided with two mating terminals 51, and the connector may only include two terminal assemblies 1.

[0091] Second Embodiment Figures 11 to 16 This illustrates a second embodiment according to the present invention. Figure 11 This is a perspective view of the connector according to the second embodiment of the present invention, viewed from the front. Figure 12 A perspective view of the connector according to the second embodiment of the present invention, viewed from the rear. Figure 13 Showing a longitudinal sectional view of the connector according to a second embodiment of the present invention; Figure 14 A cross-sectional view of a connector according to a second embodiment of the present invention is shown; Figure 15 A perspective view of one of the terminal components 2 of the connector according to a second embodiment of the present invention is shown; Figure 16 show Figure 15 An exploded view of terminal assembly 2 shown.

[0092] like Figures 11 to 16 As shown, in another exemplary embodiment of this utility model, a terminal assembly 2 is disclosed for mounting in a connector. The terminal assembly 2 has a front end and a rear end opposite each other in its longitudinal direction Y, left and right sides opposite each other in its transverse direction X, and upper and lower sides opposite each other in its height direction Z. The terminal assembly 2 mainly includes a pair of terminals 21, each terminal 21 including a fixing portion 212 and a resilient portion 210. The fixing portion 212 is located at the rear end of the terminal 21 and extends along the longitudinal direction Y and the height direction Z. The resilient portion 210 is located at the front end of the terminal 21 and extends obliquely to the fixing portion 212. The fixing portions 212 of the pair of terminals 21 abut against each other and are fixed together, and the resilient portions 210 of the pair of terminals 21 are opposite each other in the transverse direction X; that is, the pair of terminals 21 form a Y-shaped structure.

[0093] The front end of the elastic part 210 has a row of elastic arms 211 arranged along the height direction Z and adapted to be inserted into the mating slot 510 of the mating terminal 51. The two rows of elastic arms 211 of a pair of terminals 21 are adapted to make electrical contact with the two inner wall surfaces on the left and right sides of the mating slot 510 in the transverse direction X, respectively.

[0094] The terminal assembly 2 has two rows of elastic arms for simultaneous electrical contact with mating terminals. Compared with the connector terminals in the prior art that make electrical contact with mating terminals through a row of elastic arms, the terminal assembly 2 according to the present invention can increase the electrical contact area and current carrying capacity by at least two times, and can meet the compact space requirements.

[0095] The elastic portions 210 of a pair of terminals 21 of the terminal assembly 2 form a clip-like structure, which can provide good elastic contact performance in a compact space, ensuring that there is sufficient positive force between the terminal assembly 2 and the mating terminal (not shown) to maintain stable and reliable electrical contact. It also allows the elastic forces of the left and right elastic portions 210 to be mutually transmitted and complementary, making the positive forces on the left and right sides more balanced. Thus, when the terminal assembly 2 and the mating terminal are misaligned, it can avoid the situation where the positive force on one side is too large and the positive force on the other side is insufficient, so as to ensure that both rows of elastic arms 211 maintain stable and reliable electrical contact with the mating terminal.

[0096] The rear ends of the elastic portions 210 of a pair of terminals 21 of the terminal assembly 2 support each other and have high strength, so that it is not necessary to set an elastic support between the two rows of elastic arms 211, thereby reducing costs.

[0097] Optionally, terminal 21 is a one-piece stamped part.

[0098] like Figures 11 to 16 As shown, the terminal assembly 2 also includes a pair of heat sinks 28, which are respectively disposed on the opposite sides of the fixing portion 212 of the pair of terminals 21 to dissipate heat from the pair of terminals 21 and prevent the terminal assembly 2 from overheating, thereby further improving the current carrying capacity of the terminal assembly 2.

[0099] However, the present invention is not limited to the embodiments shown in the figure. For example, in some other embodiments, the terminal assembly 2 may include only one heat sink 28, which is disposed on the fixing part 212 of one of the pairs of terminals 21 and dissipates heat from the pair of terminals 21 that are abutted together through the fixing part 212; in still other embodiments, the terminal assembly 2 may also include three or more heat sinks 28.

[0100] In the illustrated embodiment, at least one heat sink 28 is a metal plate heat sink, for example, made of copper. The metal plate heat sink is attached to the side of the fixing part 212 to form heat conduction and electrical connection, thereby simplifying the structure of the heat sink 28 and the terminal assembly 2 and increasing the conductive cross-sectional area of ​​the terminal assembly 2 to further improve the conductivity of the terminal assembly 2.

[0101] However, the present invention is not limited to the embodiments shown in the figure. For example, in other embodiments, the radiator 28 may also be a liquid-cooled or air-cooled radiator.

[0102] like Figures 11 to 16 As shown, the terminal assembly 2 also includes a riveting member 27 that passes through the fixing portion 212 of a pair of terminals 21 and at least one heat sink 28 to secure the pair of terminals 21 together and to secure at least one heat sink 28 to the pair of terminals 21, thereby simplifying the structure of the terminal assembly 2. However, the present invention is not limited to the illustrated embodiment. For example, in other embodiments, the pair of terminals 21 and at least one heat sink 28 may also be connected together by fasteners.

[0103] like Figures 11 to 16 As shown, the terminal assembly 2 also includes a temperature detection device 25, which is disposed on the fixing portion 212 of the terminal 21. The temperature detection device 25 includes a temperature sensor 251 and an insulating thermally conductive element 252. The temperature sensor 251 is, for example, an NTC temperature sensor. The insulating thermally conductive element 252 is connected between the temperature sensor 251 and the fixing portion 212 to form heat conduction and to electrically isolate the temperature sensor 251 from the fixing portion 212.

[0104] The temperature detection device 25 also includes an insulating housing 253, which is mounted on the fixing part 212. The temperature sensor 251 and the insulating heat-conducting element 252 are at least partially inserted into the insulating housing 253.

[0105] The temperature detection device 25 also includes a fastener 254, which passes through corresponding through holes located on the insulating housing 253 and the fixing part 212 respectively, to fix the insulating housing 253 to the fixing part 212.

[0106] Temperature sensor 251 is held within insulating housing 253 and fixed to fixing part 212 via insulating housing 253. Lead wire 2511 of temperature sensor 251 extends from the rear end of insulating housing 253 and extends rearward. Lead wire 2511 is spaced apart from fixing part 212, thereby electrically isolating it from fixing part 212. Insulating thermally conductive element 252 is clamped and fixed between temperature sensor 251 and fixing part 212.

[0107] Electrical isolation between the temperature detection device 25 and the terminal 21 can prevent electric shock caused by the user touching the lead 2511 of the temperature sensor 251, thus ensuring electrical safety, especially when the terminal assembly 2 and connector are used in high-voltage applications, making the terminal assembly 2 and connector better suited for high-voltage applications.

[0108] The insulating housing 253 further ensures reliable insulation between the temperature sensor 251 and the fixing part 212, and also provides support and fixation. The insulating housing 253 withstands the tightening force of the fastener 254, thereby protecting the temperature sensor 251 and the insulating heat-conducting component 252 from excessive pressure.

[0109] However, this invention is not limited to the illustrated embodiments. For example, in other embodiments, the terminal assembly 2 may also include the above-described combination. Figures 1 to 10 The temperature detection device 15 described.

[0110] like Figures 11 to 16 As shown, in another exemplary embodiment of this utility model, a connector is also disclosed. This connector is used for use with, for example... Figure 9 and Figure 10 The mating parts 5 shown are mated. The connector mainly includes a housing 4 and the aforementioned terminal assembly 2. The housing 4 has a front end and a rear end opposite each other in its longitudinal direction Y, left and right sides opposite each other in its transverse direction X, and upper and lower sides opposite each other in its height direction Z. The terminal assembly 2 is inserted into the housing 4.

[0111] The housing 4 includes a main housing portion 41 and a mating plug 42. The mating plug 42 extends forward from the front end of the main housing portion 41 and has two side openings 421 opposite each other in the transverse direction X. The mating plug 42 is adapted to be inserted into the mating slot 510 of the mating terminal 51 of the mating component 5. The two rows of resilient arms 211 of the terminal assembly 2 are received in the mating plug 42 and protrude from the two side openings 421 respectively, so as to be able to make simultaneous electrical contact with the inner wall surface of the mating slot 510. The fixing portion 212 of the terminal assembly 2 is fixed in the main housing portion 41.

[0112] The housing 4 includes three mating plugs 42 arranged side-by-side along a transverse X direction and adapted to be inserted into the three mating slots 510 of the three mating terminals 51 of the mating component 5, respectively. The connector includes three terminal assemblies 2, the front ends of which are respectively inserted into the three mating plugs 42. The three terminal assemblies 2 serve as the positive terminal assembly, the negative terminal assembly, and the neutral terminal assembly, respectively.

[0113] The connector also includes three electrical transmission components (not shown), such as cables or busbars. The three electrical transmission components are electrically connected to the fixing parts 212 of the three terminal assemblies 2, respectively.

[0114] like Figures 11 to 16 As shown, the housing 4 also includes a pair of protective plugs 43, which extend forward from the front end of the main housing portion 41 and are adapted to be inserted into a pair of slots 53 of the mating component 5, respectively. The mating plug 42 is located between the pair of protective plugs 43.

[0115] The front end of the protective plug 43 has an inclined guide feature 431 that extends obliquely backward from the front end of the protective plug 43 toward the mating plug 42. Thus, when the connector is inserted into the mating component 5, the inclined guide feature 431 can mate with the slot 53 of the mating component 5 to guide the mating plug 42 into the mating slot 510 in the correct orientation.

[0116] The front end of the protective plug 43 extends beyond the mating plug 42, allowing it to be inserted into the mating component 5 before the mating plug 42, thus better guiding the mating plug 42 into the mating slot 510 in the correct orientation.

[0117] The connector also includes a pair of grounding terminals 8, which are respectively disposed on opposite sides of a pair of protective plugs 43 and are adapted to be electrically connected to the mating grounding terminal (not shown) of the mating component 5.

[0118] In the illustrated embodiment, the terminal assemblies 2 on the left and right sides of the connector are fixed to the housing 4 by positioning pins 7, and the terminal assembly 2 in the middle is fixed to the housing 4 by a heat sink 28 and a locking member 9. However, the present invention is not limited to the illustrated embodiment. For example, in other embodiments, the three terminal assemblies 2 can also be fixed to the housing 4 in the same way.

[0119] like Figures 11 to 16 As shown, the terminal assembly 2 includes a pair of heat sinks 28, which are respectively connected to the opposite sides of the fixing portion 212 of a pair of terminals 21 and are clamped in the housing 4.

[0120] The connector also includes a locking element 9, which is detachably mounted on the housing 4 and stops behind a pair of heat sinks 28 to retain the corresponding terminal assembly 2 within the housing 4. Fixing the connector to the housing 4 via the heat sinks 28 and the locking element 9 avoids the need for through holes in the terminals 21 for mounting locating pins, thus preventing a reduction in the conductive cross-sectional area of ​​the terminals 21 and simplifying the structure of the terminals 21 for easier manufacturing.

[0121] The locking member 9 includes a head 91 and a pair of legs 92 extending from the head 91 in a direction away from the head 91. The pair of legs 92 are respectively used to stop a pair of heat sinks 28 of the corresponding terminal assembly 2. A clearance groove 93 is formed between the pair of legs 92 to avoid a pair of terminals 21. A head stop surface 911 is formed on the side of the head 91 facing the legs 92, and a leg stop surface 921 opposite to the head stop surface 91 is formed on the distal end of the legs 92 away from the head 91.

[0122] The main shell portion 41 has a top wall 411 and a bottom wall 412 that are opposite each other in the height direction Z. The top wall 411 has an upper through hole 413 that allows the legs 92 to pass through and an upper stop surface 415 for stopping the leg stop surface 921. The bottom wall 412 has a lower through hole 414 that allows the legs 92 to pass through and a lower stop surface 416 for stopping the head stop surface 911.

[0123] The locking member 9 is made of plastic, for example, and has a certain degree of elasticity. When the locking member 9 is installed on the housing 4, a pair of legs 92 of the locking member 9 pass through the lower through hole 414 of the bottom wall 412 and pass through the two sides of a pair of terminals 21 respectively, and then reach the inner side of the top wall 411. Subsequently, under the pressure of the upper through hole 413, they undergo elastic deformation to pass through the upper through hole 413. After passing through the upper through hole 413, they rebound, so that the leg stop surface 921 faces the upper stop surface 415 and the head stop surface 911 faces the lower stop surface 416, thereby locking onto the housing 4.

[0124] In another exemplary embodiment of this utility model, a connector assembly is also disclosed. The connector assembly includes, as shown below: Figures 11 to 16 The connector shown and as Figure 9 and Figure 10 The mating component 5 is shown. The mating component 5 includes a mating terminal 51, which mates with the terminal assembly 2.

[0125] In the illustrated embodiment, the mating component 5 includes three mating terminals 51 and an insulating isolator 52. The three mating terminals 51 are arranged side-by-side along the transverse direction X of the mating component 5. The insulating isolator 52 is inserted between adjacent mating terminals 51 to electrically isolate adjacent mating terminals. The connector includes three terminal assemblies 2, each of which mates with one of the three mating terminals 51.

[0126] However, the present invention is not limited to the embodiments shown in the figure. For example, in some other embodiments, depending on different electrical connection requirements, the mating component 5 may only be provided with two mating terminals 51, and the connector may only include two terminal assemblies 2.

[0127] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved upon. The structures described in the various embodiments can be freely combined without causing structural or principle conflicts, and these changes should fall within the protection scope of this utility model.

[0128] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to illustrate preferred embodiments of the present invention and should not be construed as a limitation thereof.

[0129] While some embodiments of the general concept of this utility model have been shown and described, those skilled in the art will understand that changes may be made to these embodiments without departing from the principles and spirit of the general concept of this utility model, the scope of which is defined by the claims and their equivalents.

[0130] It should be noted that the word "comprising" does not exclude other elements or steps, and the words "a" or "an" do not exclude multiple elements. Furthermore, any reference numerals in the claims should not be construed as limiting the scope of this invention.

Claims

1. A terminal assembly having a front end and a rear end opposite each other in its longitudinal direction (Y), left and right sides opposite each other in its transverse direction (X), and upper and lower sides opposite each other in its height direction (Z), characterized in that, The terminal assembly (1) includes: The rear terminal (12), located at the rear end of the terminal assembly (1), is adapted to be fixed to the connector housing (3); and A front terminal (11), located at the front end of the terminal assembly (1), includes: Two rows of elastic arms (111) are spaced apart and opposite each other in the transverse (X) direction, and are respectively arranged along the height direction (Z); and The connecting part (112) is connected to the rear end of the two rows of elastic arms (111) and is fixedly electrically connected to the rear terminal (12). The two rows of elastic arms (111) are adapted to be inserted into the mating slots (510) of the mating terminals (51) and make electrical contact with the inner wall surfaces on the left and right sides of the mating slots (510) in the transverse (X) direction, respectively.

2. The terminal assembly according to claim 1, characterized in that: The front terminal (11) further includes a pair of elastic portions (110), which extend from the front end to the rear end of the front terminal (11) and are spaced apart from each other in the transverse (X) direction; The two rows of elastic arms (111) are respectively formed at the front end of the pair of elastic parts (110), and the connecting part (112) is connected between the rear ends of the pair of elastic parts (110).

3. The terminal assembly according to claim 1, characterized in that: The rear terminal (12) includes: The base (121) is fixedly electrically connected to the rear side of the connecting part (112); and At least one side plate (122) is connected to the base (121) and extends rearward, and is adapted to be electrically connected to the electrical transmission element (6).

4. The terminal assembly according to claim 3, characterized in that: The rear terminal (12) includes two side plates (122), which are respectively connected to the left and right sides of the base (121). The two side plates (122) are respectively formed with opposing through holes (122a), which are used to install positioning pins (7) to fix the rear terminal (12) to the housing (3) of the connector by means of the positioning pins (7).

5. The terminal assembly according to claim 1, characterized in that: The rear terminal (12) includes: The base (121) is fixedly electrically connected to the rear side of the connecting part (112); and A cantilever portion (123), connected to the base portion (121) and located on the rear side of the base portion (121), the cantilever portion (123) comprising: An electrical connection plate (1231), formed at the free end of the cantilever (123), extends along the longitudinal direction (Y) and is adapted for electrical connection to an electrical transmission element; and A tortuous structure (1232) is connected between the base (121) and the electrical connection plate (1231) and extends along a tortuous path, so that the electrical connection plate (1231) can float relative to the base (121).

6. The terminal assembly according to claim 5, characterized in that: The longitudinal section of the tortuous structure (1232) includes a Z-shaped structure or a serpentine structure.

7. The terminal assembly according to claim 5, characterized in that: The cantilever (123) includes a pair of electrical connection plates (1231), which are located on the upper and lower sides of the free end of the cantilever (123) and are adapted to be connected to the two electrical transmission components respectively.

8. The terminal assembly according to claim 7, characterized in that: The pair of electrical connection plates (1231) have opposing through holes (1231a) respectively, the through holes (1231a) are used to install positioning pins (7) to fix the rear terminal (12) to the housing (3) of the connector by means of the positioning pins (7).

9. The terminal assembly according to claim 1, characterized in that... Also includes: The elastic support (14) is clamped between the two rows of elastic arms (111) to apply an auxiliary contact force to the two rows of elastic arms (111) to ensure reliable electrical contact between the two rows of elastic arms (111) and the inner wall surface of the mating slot (510).

10. The terminal assembly according to any one of claims 1-9, characterized in that... Also includes: Temperature detection devices (15, 25) include: Temperature sensors (151, 251); and Insulating thermal conductive elements (152, 252) are connected between the temperature sensor (151) and the rear terminal (12) to form heat conduction and to electrically isolate the temperature sensor (151, 251) from the rear terminal (12).

11. The terminal assembly according to claim 10, characterized in that: The temperature detection devices (15, 25) also include: Insulating housings (153, 253) are mounted on the rear terminal (12). The temperature sensors (151, 251) and the insulating thermally conductive elements (152, 252) are at least partially inserted into the insulating housing (153, 253).

12. The terminal assembly according to claim 11, characterized in that: The temperature sensor (151) includes: A heat-conducting housing (1510) is attached to one side of the insulating heat-conducting component (152); The temperature sensing element is held within the heat-conducting housing (1510) and forms a thermal conduction relationship with the heat-conducting housing (1510); and A lead wire (1511), connected to the temperature sensing element, extends from the rear end of the heat-conducting housing (1510) and the insulating housing (153), and is spaced apart from the rear terminal (12). The temperature detection device (15) further includes a fastener (154) that passes through corresponding through holes located on the insulating housing (153), the heat-conducting housing (1510), the insulating heat-conducting element (152), and the rear terminal (12) to fix the insulating housing (153), the temperature sensor (151), and the insulating heat-conducting element (152) to the rear terminal (12).

13. The terminal assembly according to claim 11, characterized in that: The temperature sensor (251) is held in the insulating housing (253), and the lead (2511) of the temperature sensor (251) extends out of the insulating housing (253) from the rear end of the insulating housing (253) and is spaced apart from the rear terminal (12). The insulating heat-conducting component (252) is clamped and fixed between the temperature sensor (251) and the rear terminal (12).

14. A terminal assembly having a front end and a rear end opposite each other in its longitudinal direction (Y), left and right sides opposite each other in its transverse direction (X), and upper and lower sides opposite each other in its height direction (Z), characterized in that, The terminal assembly (2) includes: A pair of terminals (21), each of said terminals (21) comprising: A fixing part (212) is located at the rear end of the terminal (21) and extends along the longitudinal (Y) and height (Z) directions; and The elastic part (210) is located at the front end of the terminal (21) and extends obliquely to the fixing part (212). The fixing portions (212) of the pair of terminals (21) are abutted against each other and fixed together, and the elastic portions (210) of the pair of terminals (21) are opposite each other in the transverse (X) direction. The front end of the elastic part (210) is formed with a row of elastic arms (211), the row of elastic arms (211) being arranged along the height direction (Z) and adapted to be inserted into the mating slot (510) of the mating terminal (51). The two rows of elastic arms (211) of the pair of terminals (21) are adapted to make electrical contact with the two inner wall surfaces on the left and right sides of the mating slot (510) in the transverse (X) direction, respectively.

15. The terminal assembly according to claim 14, characterized in that... Also includes: At least one heat sink (28) is provided on the fixing portion (212) of one or both of the pair of terminals (21) to dissipate heat from the pair of terminals (21).

16. The terminal assembly according to claim 15, characterized in that: The at least one heat sink (28) is a metal plate heat sink, which is attached to the side of the fixing part (212) to form heat conduction and electrical connection.

17. The terminal assembly according to claim 15, characterized in that... Also includes: A rivet (27) or fastener passes through the fixing portion (212) of the pair of terminals (21) and the at least one heat sink (28) to secure the pair of terminals (21) together and to secure the at least one heat sink (28) to the pair of terminals (21).

18. The terminal assembly according to any one of claims 14-17, characterized in that... Also includes: Temperature detection devices (15, 25) include: Temperature sensors (151, 251); and Insulating heat-conducting elements (152, 252) are connected between the temperature sensor (251) and the fixing part (212) to form heat conduction and to electrically isolate the temperature sensor (151, 251) from the fixing part (212).

19. The terminal assembly according to claim 18, characterized in that: The temperature detection devices (15, 25) also include: The insulating housing (153, 253) is mounted on the fixing part (212). The temperature sensors (151, 251) and the insulating thermally conductive elements (152, 252) are at least partially inserted into the insulating housing (153, 253).

20. The terminal assembly according to claim 19, characterized in that: The temperature sensor (151) includes: A heat-conducting housing (1510) is attached to one side of the insulating heat-conducting component (152); The temperature sensing element is held within the heat-conducting housing (1510) and forms a thermal conduction relationship with the heat-conducting housing (1510); and A lead wire (1511) is connected to the temperature sensing element, extending from the rear end of the heat-conducting housing (1510) and the insulating housing (153), and is spaced apart from the fixing part (212). The temperature detection device (15) further includes a fastener (154) that passes through corresponding through holes located on the insulating housing (153), the heat-conducting housing (1510), the insulating heat-conducting element (152), and the fixing part (212) to fix the insulating housing (153), the temperature sensor (151), and the insulating heat-conducting element (152) to the fixing part (212).

21. The terminal assembly according to claim 19, characterized in that: The temperature sensor (251) is held in the insulating housing (253), and the lead wire (2511) of the temperature sensor (251) extends out of the insulating housing (253) from the rear end of the insulating housing (253) and is spaced apart from the fixing part (212). The insulating heat-conducting component (252) is clamped and fixed between the temperature sensor (251) and the fixing part (212).

22. A connector, characterized in that, include: The housing (3, 4) has a front end and a rear end opposite each other in its longitudinal direction (Y), left and right sides opposite each other in its transverse direction (X), and upper and lower sides opposite each other in its height direction (Z); and The terminal assembly (1, 2) according to any one of claims 1-21 is inserted into the housing (3, 4).

23. The connector according to claim 22, characterized in that: The housing (3, 4) includes: Main shell (31, 41); and The mating plugs (32, 42) extend forward from the front end of the main housing (31, 41) and have two side openings (321, 421) opposite each other in the transverse (X) direction. The mating plugs (32, 42) are adapted to be inserted into the mating slots (510) of the mating terminals (51) of the mating components (5). The two rows of resilient arms (111, 211) of the terminal assemblies (1, 2) are accommodated in the mating plugs (32, 42) and protrude from the two side openings (321, 421) respectively, so as to make simultaneous electrical contact with the inner wall surface of the mating slots (510). The rear end of the terminal assembly (1, 2) is fixed in the main housing (31, 41).

24. The connector according to claim 23, characterized in that: The housing (3, 4) includes three mating plugs (32, 42) arranged side by side along the transverse (X) direction and adapted to be inserted into the three mating slots (510) of the three mating terminals (51) of the mating component (5); The connector includes three terminal assemblies (1, 2), the front ends of which are respectively inserted into the three mating plugs (32, 42), and the three terminal assemblies (1, 2) serve as the positive terminal assembly, the negative terminal assembly, and the neutral terminal assembly, respectively.

25. The connector according to claim 24, characterized in that: The neutral terminal assembly is located between the positive terminal assembly and the negative terminal assembly.

26. The connector according to claim 25, characterized in that: The neutral terminal assembly is the terminal assembly (1) according to claim 7. The connector also includes: A pair of first electrical transmission elements (61) are electrically connected to the rear ends of the positive terminal subassembly and the negative terminal subassembly, respectively, and are located on the upper and lower sides of the connector, respectively; and A pair of second electrical transmission components are electrically connected to the pair of electrical connection plates (1231) of the neutral terminal assembly, and are located on the upper and lower sides of the connector, respectively.

27. The connector according to claim 26, characterized in that: The first electrical transmission component (61) is a cable, and / or The second electrical transmission component is a circuit board.

28. The connector according to claim 23, characterized in that: The housing (3, 4) also includes: A pair of protective plugs (33, 43) extend forward from the front end of the main housing (31, 41) and are adapted to be inserted into a pair of slots (53) of the mating parts (5). The mating plugs (32, 42) are located between the pair of protective plugs (33, 43).

29. The connector according to claim 28, characterized in that: The front end of the protective plug (43) extends beyond the mating plug (42) and / or the front end of the protective plug (33, 43) has an inclined guiding feature (331, 431) to guide the mating plug (32, 42) into the mating slot (510) in the correct orientation.

30. The connector according to claim 28, characterized in that... Also includes: A pair of grounding terminals (8) are respectively disposed on opposite sides of the pair of protective plugs (43) and are adapted to be electrically connected to the mating grounding terminals of the mating components (5).

31. A connector, characterized in that, include: The housing (4) has a front end and a rear end opposite each other in its longitudinal direction (Y); and The terminal assembly (2) according to any one of claims 14-21 is inserted into the housing (4), the terminal assembly (2) comprising: A pair of heat sinks (28) are respectively connected to the opposite sides of the fixing part (212) of the pair of terminals (21) and are clamped in the housing (4).

32. The connector according to claim 31, characterized in that... Also includes: A locking element (9) is detachably mounted on the housing (4) and stops behind the pair of heat sinks (28) to hold the terminal assembly (2) in the housing (4).

33. A connector assembly, characterized in that, include: The connector according to any one of claims 22-32; and The mating component (5) includes: The mating terminal (51) is mated with the terminal assembly (1, 2).

34. The connector assembly according to claim 33, characterized in that: The mating component (5) includes: The three mating terminals (51) are arranged side by side along the transverse (X) direction of the mating component (5); and An insulating isolator (52) is inserted between adjacent mating terminals (51) to electrically isolate the adjacent mating terminals (51). The connector includes three terminal assemblies (1, 2), which are respectively mated with the three mating terminals (51).

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