Temperature detector, connector, connector assembly and electrical connection system

Abstract

The utility model discloses a temperature detector, a connector, a connector assembly and an electric connection system. The temperature detector is used for detecting the temperature of a terminal of the connector. The temperature detector comprises a heat conduction member which comprises a cylindrical part and a connecting sheet connected with the cylindrical part; and a temperature sensor inserted into the cylindrical portion of the heat conducting member. The temperature sensor is in thermal contact with the inner peripheral wall of the cylindrical part of the heat conducting piece or is in thermal connection with the inner peripheral wall of the cylindrical part of the heat conducting piece through heat conducting glue; a through hole allowing a bolt to penetrate through is formed in the connecting piece of the heat conduction piece, so that the connecting piece of the heat conduction piece can be fastened to the terminal through the bolt so as to be in thermal contact with the terminal. According to the utility model, the temperature detector is simple in structure, easy to install and small in size, and miniaturization of the connector can be realized.

Description

Technical Field

[0001] The utility model relates to a temperature detector, including a connector of the temperature detector, a connector assembly including the connector, and an electrical connection system including the connector. Background Art

[0002] When the terminals of the connector are working, they will heat up. In order to prevent the terminals from overheating, in the prior art, a temperature detection device is usually installed in the connector. However, the existing temperature detection device has a complex structure, is difficult to install, and has a large volume, which is not conducive to the miniaturization of the connector. Summary of the Utility Model

[0003] The purpose of the utility model aims to solve at least one of the above problems and defects existing in the prior art.

[0004] According to one aspect of the utility model, there is provided a temperature detector for detecting the temperature of the terminals of a connector. The temperature detector includes: a heat conducting member including a cylindrical portion and a connecting piece connected to the cylindrical portion; and a temperature sensor inserted into the cylindrical portion of the heat conducting member. The temperature sensor is in thermal contact with the inner peripheral wall of the cylindrical portion of the heat conducting member or is thermally connected to the inner peripheral wall of the cylindrical portion of the heat conducting member through a heat conducting adhesive; a through hole allowing a bolt to pass through is formed in the connecting piece of the heat conducting member, so that the connecting piece of the heat conducting member can be fastened to the terminal by the bolt to be in thermal contact with the terminal.

[0005] According to an exemplary embodiment of the utility model, the cylindrical portion of the heat conducting member has two opposite ends in its axial direction, the connecting piece is connected to one end of the cylindrical portion, and the lead of the temperature sensor is led out from the other end of the cylindrical portion.

[0006] According to another exemplary embodiment of the utility model, the heat conducting member is an integrally formed metal stamping part.

[0007] According to another exemplary embodiment of the utility model, the connecting piece of the heat conducting member has a flat contact surface adapted to be abutted against the surface of one side of the terminal.

[0008] According to another exemplary embodiment of the utility model, the temperature sensor is an NTC temperature sensor.

[0009] According to another aspect of the utility model, there is provided a connector. The connector includes: a housing; a pair of terminals inserted into the housing and having an inner side facing each other and an outer side facing away from each other; and at least two temperature detectors, the connecting pieces of which are respectively fastened to the outer sides of the pair of terminals, and the at least two temperature sensors are used to respectively detect the temperatures of the pair of terminals.

[0010] According to an exemplary embodiment of the present utility model, the connector further includes: at least two fastening components for respectively fastening two cable connection plates to the inner sides of the pair of terminals, and the at least two fastening components are further configured to respectively fasten connection pieces of the at least two temperature sensors to the outer sides of the pair of terminals.

[0011] According to another exemplary embodiment of the present utility model, the connector includes four temperature detectors and four fastening components for respectively fastening the four temperature detectors, and two temperature detectors are fastened to the outer side of each terminal.

[0012] According to another exemplary embodiment of the present utility model, the connector further includes: two cables; and two cable connection plates respectively electrically connected to the two cables, and the two cable connection plates are respectively fastened to the inner sides of the pair of terminals by the at least two fastening components.

[0013] According to another exemplary embodiment of the present utility model, the fastening component includes a nut and a bolt, and the bolt passes through the cable connection plate, the terminal and the connection piece and is threadedly connected to the nut to simultaneously fasten the terminal and the connection piece to the cable connection plate.

[0014] According to another exemplary embodiment of the present utility model, the fastening component further includes a rigid washer and an elastic washer, the bolt passes through the rigid washer and the elastic washer, and the rigid washer and the elastic washer are arranged between the nut and the connection piece to ensure reliable thermal contact between the connection piece and the terminal and prevent the connection piece from loosening.

[0015] According to another exemplary embodiment of the present utility model, the rigid washer is pressed between the connection piece and the elastic washer, and the elastic washer is pressed between the rigid washer and the nut.

[0016] According to another exemplary embodiment of the present utility model, the terminal includes: a first terminal piece having a row of first elastic arms at its front end and a first connection plate at its rear end; and a second terminal piece stacked on the outer side of the first terminal piece, having a row of second elastic arms at its front end and a second connection plate at its rear end, the row of second elastic arms abuts against the outer side of the row of first elastic arms, the first elastic arms and the second elastic arms are configured to simultaneously make electrical contact with one side of a mating plug inserted between the front ends of the pair of terminals, the second connection plate abuts against the outer side of the first connection plate, and the connection piece of the heat conducting member abuts against the outer side of the second connection plate to make thermal contact with the outer side of the second connection plate.

[0017] According to another exemplary embodiment of the present utility model, a first contact is formed at the end of the first elastic arm, and a second contact is formed at the end of the second elastic arm. The first contact and the second contact are arranged in a row in an alternating manner for simultaneously making electrical contact with one side of a mating plug inserted between the front ends of the pair of terminals.

[0018] According to another exemplary embodiment of the present utility model, the terminal further includes: an auxiliary elastic piece, which is stacked on the outside of the second terminal piece, has a row of auxiliary elastic arms at its front end and an auxiliary connecting plate at its rear end. The auxiliary connecting plate abuts against the outside of the second connecting plate, and the first terminal piece, the second terminal piece, and the auxiliary elastic piece are riveted together by a riveting pin passing through them.

[0019] According to another aspect of the present utility model, a connector assembly is provided. The connector assembly includes: a connector; and a mating connector that mates with the connector. The mating connector includes: a mating plug that is inserted between a pair of terminals of the connector and makes electrical contact with the pair of terminals.

[0020] According to another aspect of the present utility model, an electrical connection system is provided. The electrical connection system includes: a load circuit; the aforementioned connector, whose pair of terminals are electrically connected to the load circuit; and a control circuit, which is connected to the temperature detector of the connector and is used to control the energization and de-energization of the load circuit according to the temperature of the terminals detected by the temperature detector. When the temperature of the terminals detected by the temperature detector exceeds a predetermined temperature, the control circuit cuts off the power supply to the load circuit.

[0021] In the foregoing various exemplary embodiments according to the present utility model, the temperature detector has a simple structure, is easy to install, and has a small volume, enabling miniaturization of the connector.

[0022] Through the description of the present utility model with reference to the accompanying drawings hereinafter, other objects and advantages of the present utility model will be apparent and can help to have a comprehensive understanding of the present utility model. Description of the Drawings

[0023] Figure 1 A three-dimensional schematic diagram of a connector showing an exemplary embodiment according to the present utility model;

[0024] Figure 2 An exploded schematic diagram of a connector showing an exemplary embodiment according to the present utility model;

[0025] Figure 3 A three-dimensional schematic diagram of two terminal assemblies of a connector showing an exemplary embodiment according to the present utility model;

[0026] Figure 4 A perspective view of a terminal assembly of a connector according to an exemplary embodiment of the present invention, as viewed from the outside;

[0027] Figure 5 A perspective view of a terminal assembly of a connector according to an exemplary embodiment of the present invention, as viewed from the inside;

[0028] Figure 6 A longitudinal sectional view of a terminal assembly of a connector according to an exemplary embodiment of the present invention;

[0029] Figure 7 An exploded view of a terminal assembly of a connector according to an exemplary embodiment of the present invention;

[0030] Figure 8 A perspective view of a temperature detector according to an exemplary embodiment of the present invention;

[0031] Figure 9 An exploded view of a temperature detector according to an exemplary embodiment of the present invention. Detailed implementation manners

[0032] The technical solution of the present invention will be further specifically described below by way of embodiments in conjunction with the accompanying drawings. In the description, the same or similar reference numerals indicate the same or similar components. The description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the general inventive concept of the present invention, and should not be construed as a limitation of the present invention.

[0033] In addition, in the following detailed description, for the purpose of explanation, many specific details are set forth to provide a thorough understanding of the embodiments disclosed herein. However, it is obvious that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are shown in diagrammatic form to simplify the drawings.

[0034] According to a general inventive concept of the present invention, there is provided a temperature detector for detecting the temperature of a terminal of a connector. The temperature detector includes: a heat conducting member including a cylindrical portion and a connecting piece connected to the cylindrical portion; and a temperature sensor inserted into the cylindrical portion of the heat conducting member. The temperature sensor is in thermal contact with the inner peripheral wall of the cylindrical portion of the heat conducting member or is thermally connected to the inner peripheral wall of the cylindrical portion of the heat conducting member through a thermal conductive adhesive; a through hole allowing a bolt to pass through is formed in the connecting piece of the heat conducting member, so that the connecting piece of the heat conducting member can be fastened to the terminal by the bolt to be in thermal contact with the terminal.

[0035] According to another general technical concept of the present utility model, a connector is provided. The connector includes: a housing; a pair of terminals inserted in the housing and having inner sides facing each other and outer sides facing away from each other; and at least two temperature detectors, the connection pieces of which are respectively fastened to the outer sides of the pair of terminals, and the at least two temperature sensors are used to respectively detect the temperatures of the pair of terminals.

[0036] According to another general technical concept of the present utility model, a connector assembly is provided. The connector assembly includes: a connector; and a mating connector mated with the connector. The mating connector includes: a mating plug inserted between a pair of terminals of the connector and in electrical contact with the pair of terminals.

[0037] According to another general technical concept of the present utility model, an electrical connection system is provided. The electrical connection system includes: a load circuit; the aforementioned connector, a pair of terminals of which are electrically connected to the load circuit; and a control circuit connected to the temperature detector of the connector, for controlling the energization and de-energization of the load circuit according to the temperature of the terminals detected by the temperature detector, and when the temperature of the terminals detected by the temperature detector exceeds a predetermined temperature, the control circuit cuts off the power supply of the load circuit.

[0038] Figure 1 Showing a perspective schematic view of a connector according to an exemplary embodiment of the present utility model; Figure 2 Showing an exploded schematic view of a connector according to an exemplary embodiment of the present utility model; Figure 3 Showing a perspective schematic view of two terminal assemblies of a connector according to an exemplary embodiment of the present utility model; Figure 4 Showing a perspective schematic view of a terminal assembly of a connector when viewed from the outside according to an exemplary embodiment of the present utility model; Figure 5 Showing a perspective schematic view of a terminal assembly of a connector when viewed from the inside according to an exemplary embodiment of the present utility model; Figure 6 Showing a longitudinal sectional view of a terminal assembly of a connector according to an exemplary embodiment of the present utility model; Figure 7 Showing an exploded schematic view of a terminal assembly of a connector according to an exemplary embodiment of the present utility model; Figure 8 Showing a perspective schematic view of temperature detector 1 according to an exemplary embodiment of the present utility model; Figure 9 Showing an exploded schematic view of temperature detector 1 according to an exemplary embodiment of the present utility model.

[0039] As Figures 1 to 9As shown, in an exemplary embodiment of the present utility model, a temperature detector is disclosed. The temperature detector is used to detect the temperature of the terminal 2 of the connector. The temperature detector 1 includes: a heat conducting member 10 and a temperature sensor 13. The heat conducting member 10 includes a cylindrical portion 11 and a connecting piece 12 connected to the cylindrical portion 11. The temperature sensor 13 is inserted into the cylindrical portion 11 of the heat conducting member 10. The temperature sensor 13 is in thermal contact with the inner peripheral wall of the cylindrical portion 11 of the heat conducting member 10 or is thermally connected to the inner peripheral wall of the cylindrical portion 11 of the heat conducting member 10 through a heat conducting adhesive. A through hole 101 allowing the bolt 51 to pass through is formed in the connecting piece 12 of the heat conducting member 10, so that the connecting piece 12 of the heat conducting member 10 can be fastened to the terminal 2 by the bolt 51 to be in thermal contact with the terminal 2.

[0040] As Figures 1 to 9 shown, in the illustrated embodiment, the cylindrical portion 11 of the heat conducting member 10 has opposite ends in its axial direction, the connecting piece 12 is connected to one end of the cylindrical portion 11, and the lead 13a of the temperature sensor 13 is led out from the other end of the cylindrical portion 11.

[0041] As Figures 1 to 9 shown, in the illustrated embodiment, the heat conducting member 10 is an integrally formed metal stamping part. For example, the heat conducting member 10 can be a copper part or an aluminum part.

[0042] As Figures 1 to 9 shown, in the illustrated embodiment, the connecting piece 12 of the heat conducting member 10 has a flat contact surface adapted to abut against the surface on one side of the terminal 2.

[0043] As Figures 1 to 9 shown, in the illustrated embodiment, the temperature sensor 13 can be an NTC (negative temperature coefficient thermistor) temperature sensor.

[0044] As Figures 1 to 9 shown, in another exemplary embodiment of the present utility model, a connector is also disclosed. The connector includes: a housing 3, a pair of terminals 2, and at least two temperature detectors 1. The pair of terminals 2 are inserted into the housing 3 and have an inner side facing each other and an outer side facing away from each other. The connecting pieces 12 of at least two temperature detectors 1 are respectively fastened to the outer sides of the pair of terminals 2. At least two temperature sensors 13 are used to respectively detect the temperatures of the pair of terminals 2.

[0045] As Figures 1 to 9 shown, in the illustrated embodiment, the connector further includes at least two fastening assemblies 5, and the at least two fastening assemblies 5 are used to respectively fasten two cable connecting plates 4 to the inner sides of the pair of terminals 2. The at least two fastening assemblies 5 are also used to respectively fasten the connecting pieces 12 of at least two temperature sensors 13 to the outer sides of the pair of terminals 2.

[0046] AsFigures 1 to 9 As shown, in the illustrated embodiment, the connector includes four temperature detectors 1 and four fastening assemblies 5 for fastening the four temperature detectors 1 respectively. Two temperature detectors 1 are fastened on the outer side of each terminal 2.

[0047] As Figures 1 to 9 shown, in the illustrated embodiment, the connector further includes two cables (not shown) and two cable connection plates 4. The two cables are electrically connected to the two cable connection plates 4 respectively. The two cable connection plates 4 are fastened to the inner sides of a pair of terminals 2 by at least two fastening assemblies 5 respectively.

[0048] As Figures 1 to 9 shown, in the illustrated embodiment, the fastening assembly 5 includes a nut and a bolt 51. The bolt 51 passes through the cable connection plate 4, the terminal 2 and the connection piece 12 and is threadedly connected to the nut to fasten the terminal 2 and the connection piece 12 to the cable connection plate 4 simultaneously.

[0049] As Figures 1 to 9 shown, in the illustrated embodiment, the fastening assembly 5 further includes a rigid washer 53 and an elastic washer 54. The bolt 51 passes through the rigid washer 53 and the elastic washer 54, and the rigid washer 53 and the elastic washer 54 are arranged between the nut and the connection piece 12 to ensure reliable thermal contact between the connection piece 12 and the terminal 2 and prevent the connection piece 12 from loosening.

[0050] As Figures 1 to 9 shown, in the illustrated embodiment, the rigid washer 53 is squeezed between the connection piece 12 and the elastic washer 54, and the elastic washer 54 is squeezed between the rigid washer 53 and the nut.

[0051] As Figures 1 to 9 shown, in the illustrated embodiment, the terminal 2 includes: a first terminal piece 21 and a second terminal piece 22. The first terminal piece 21 has a row of first elastic arms 211 at its front end and a first connection plate 212 at its rear end. The second terminal piece 22 is stacked on the outer side of the first terminal piece 21. The second terminal piece 22 has a row of second elastic arms 221 at its front end and a second connection plate 222 at its rear end. A row of second elastic arms 221 abuts against the outer side of a row of first elastic arms 211. The first elastic arms 211 and the second elastic arms 221 are used for simultaneously making electrical contact with one side of a mating plug inserted between the front ends of a pair of terminals 2. The second connection plate 222 abuts against the outer side of the first connection plate 212. The connection piece 12 of the heat conducting member 10 abuts against the outer side of the second connection plate 222 to make thermal contact with the outer side of the second connection plate 222.

[0052] As Figures 1 to 9As shown, in the illustrated embodiment, a first contact 21a is formed at the end of the first elastic arm 211, and a second contact 22a is formed at the end of the second elastic arm 221. The first contact 21a and the second contact 22a are arranged in a row in an alternating manner for simultaneous electrical contact with one side of a mating plug inserted between the front ends of a pair of terminals 2.

[0053] As Figures 1 to 9 shown, in the illustrated embodiment, the terminal 2 further includes an auxiliary elastic piece 23. The auxiliary elastic piece 23 is stacked on the outside of the second terminal piece 22 and has a row of auxiliary elastic arms 231 at its front end and an auxiliary connecting plate 232 at its rear end. The auxiliary connecting plate 232 abuts against the outside of the second connecting plate 222, and the first terminal piece 21, the second terminal piece 22, and the auxiliary elastic piece 23 are riveted together by a riveting pin 6 passing through them.

[0054] As Figures 1 to 9 shown, in another exemplary embodiment of the present invention, a connector assembly is also disclosed. The connector assembly includes: a connector; and a mating connector that mates with the connector. The mating connector includes a mating plug that is inserted between a pair of terminals 2 of the connector and makes electrical contact with the pair of terminals 2.

[0055] As Figures 1 to 9 shown, in another exemplary embodiment of the present invention, an electrical connection system is also disclosed. The electrical connection system includes: a load circuit (not shown), a connector, and a control circuit (not shown). A pair of terminals 2 of the connector are electrically connected to the load circuit. The control circuit is connected to the temperature detector 1 of the connector and is used to control the energization and de-energization of the load circuit according to the temperature of the terminals 2 detected by the temperature detector 1. When the temperature of the terminals 2 detected by the temperature detector 1 exceeds a predetermined temperature, the control circuit cuts off the power supply to the load circuit. This can avoid various accidents caused by high temperatures of the terminals.

[0056] Those skilled in the art can understand that the above-described embodiments are all exemplary, and those skilled in the art can make improvements to them. The structures described in various embodiments can be freely combined without conflicts in structure or principle, and these changes should reasonably fall within the protection scope of the present invention.

[0057] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplarily illustrate the preferred embodiments of the present invention and should not be construed as a limitation to the present invention.

[0058] Although some embodiments of the general concept of the present utility model have been shown and described, those of ordinary skill 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 the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

[0059] It should be noted that the term "comprising" does not exclude other elements or steps, and the terms "a" or "an" do not exclude a plurality. Additionally, any element numbers in the claims should not be construed as limiting the scope of the present utility model.

Claims

1. A temperature detector for detecting the temperature of a terminal (2) of a connector, characterized in that: The temperature detector (1) comprises: A heat conducting member (10) comprising a cylindrical portion (11) and a connecting piece (12) connected to the cylindrical portion (11); and The temperature sensor (13) is inserted into the cylindrical portion (11) of the heat conducting member (10). The temperature sensor (13) is in thermal contact with the inner peripheral wall of the cylindrical portion (11) of the heat conducting member (10) or is thermally connected to the inner peripheral wall of the cylindrical portion (11) of the heat conducting member (10) via a heat conducting adhesive. A through hole (101) is formed on the connecting piece (12) of the heat conducting member (10) for allowing a bolt (51) to pass through, so that the connecting piece (12) of the heat conducting member (10) can be fastened to the terminal (2) by the bolt (51) to be in thermal contact with the terminal (2).

2. The temperature detector according to claim 1, characterized in that: The cylindrical portion (11) of the heat conducting member (10) has two opposite ends in its axial direction, the connecting piece (12) is connected to one end of the cylindrical portion (11), and the lead wire (13a) of the temperature sensor (13) is led out from the other end of the cylindrical portion (11).

3. The temperature detector according to claim 1, characterized in that: The heat conducting component (10) is an integrated metal stamping component.

4. The temperature detector according to claim 1, characterized in that: The connecting piece (12) of the heat conducting member (10) has a flat contact surface suitable for abutting against a surface of one side of the terminal (2).

5. The temperature detector according to any one of claims 1 to 4, characterized in that: The temperature sensor (13) is an NTC temperature sensor.

6. A connector, characterized in that: include: Housing (3); A pair of terminals (2) inserted in the housing (3) and having inner sides facing each other and outer sides facing away from each other; and At least two temperature detectors (1) according to any one of claims 1 to 5, whose connecting pieces (12) are respectively fastened to the outer sides of the pair of terminals (2), The at least two temperature sensors (13) are used to respectively detect the temperatures of the pair of terminals (2).

7. The connector according to claim 6, characterized in that: Also includes: at least two fastening assemblies (5) for fastening the two cable connection plates (4) to the inner sides of the pair of terminals (2), respectively; The at least two fastening components (5) are also used to fasten the connecting pieces (12) of the at least two temperature sensors (13) to the outer sides of the pair of terminals (2), respectively.

8. The connector according to claim 7, characterized in that: The connector comprises four temperature detectors (1) and four fastening components (5) for fastening the four temperature detectors (1) respectively, and two temperature detectors (1) are fastened on the outer side of each terminal (2).

9. The connector according to claim 7, characterized in that: Also includes: Two cables; and Two cable connection plates (4) are electrically connected to the two cables respectively, The two cable connection plates (4) are respectively fastened to the inner sides of the pair of terminals (2) by the at least two fastening components (5).

10. The connector according to claim 7, characterized in that: The fastening assembly (5) comprises a nut and a bolt (51), wherein the bolt (51) passes through the cable connection plate (4), the terminal (2) and the connection plate (12) and is threadedly connected to the nut, so as to simultaneously fasten the terminal (2) and the connection plate (12) to the cable connection plate (4).

11. The connector according to claim 10, characterized in that: The fastening assembly (5) further comprises a rigid washer (53) and an elastic washer (54), the bolt (51) passes through the rigid washer (53) and the elastic washer (54), and the rigid washer (53) and the elastic washer (54) are arranged between the nut and the connecting piece (12) to ensure reliable thermal contact between the connecting piece (12) and the terminal (2) and to prevent the connecting piece (12) from loosening.

12. The connector according to claim 11, characterized in that: The rigid washer (53) is squeezed between the connecting piece (12) and the elastic washer (54), and the elastic washer (54) is squeezed between the rigid washer (53) and the nut.

13. The connector according to claim 7, characterized in that: The terminal (2) comprises: A first terminal piece (21) having a row of first elastic arms (211) at its front end and a first connecting plate (212) at its rear end; and The second terminal piece (22) is stacked on the outer side of the first terminal piece (21), and has a row of second elastic arms (221) at its front end and a second connecting plate (222) at its rear end. The row of second elastic arms (221) abuts against the outer side of the row of first elastic arms (211); the first elastic arm (211) and the second elastic arm (221) are used to simultaneously electrically contact one side of a mating plug inserted between the front ends of the pair of terminals (2); the second connecting plate (222) abuts against the outer side of the first connecting plate (212); the connecting piece (12) of the heat conducting member (10) abuts against the outer side of the second connecting plate (222) to be in thermal contact with the outer side of the second connecting plate (222).

14. The connector according to claim 13, characterized in that: A first contact (21a) is formed at the end of the first elastic arm (211), and a second contact (22a) is formed at the end of the second elastic arm (221), and the first contact (21a) and the second contact (22a) are arranged in a row in an alternating manner, and are used to simultaneously make electrical contact with one side of a mating plug inserted between the front ends of the pair of terminals (2).

15. The connector according to claim 13, characterized in that: The terminal (2) further comprises: The auxiliary elastic sheet (23) is stacked on the outer side of the second terminal sheet (22), and has a row of auxiliary elastic arms (231) at its front end and an auxiliary connecting plate (232) at its rear end. The auxiliary connecting plate (232) abuts against the outer side of the second connecting plate (222), and the first terminal piece (21), the second terminal piece (22) and the auxiliary elastic piece (23) are riveted together by a rivet pin (6) passing through them.

16. A connector assembly, characterized in that: include: The connector according to any one of claims 6 to 15; and A mating connector, mating with the connector, The mating connector comprises: A mating plug is inserted between a pair of terminals (2) of the connector and is in electrical contact with the pair of terminals (2).

17. An electrical connection system, characterized in that: include: Load circuit; The connector according to any one of claims 6 to 15, wherein a pair of terminals (2) are electrically connected to a load circuit; and A control circuit connected to the temperature detector (1) of the connector, for controlling the power on and off of the load circuit according to the temperature of the terminal (2) detected by the temperature detector (1), When the temperature of the terminal (2) detected by the temperature detector (1) exceeds a predetermined temperature, the control circuit cuts off the power supply to the load circuit.

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