Terminal and Power Supply Connector with Cable

Abstract

The terminal includes: a terminal main body portion in which a refrigerant flow path is formed inside; and a terminal contact portion that protrudes forward from the terminal main body portion. The terminal main body portion has a terminal expansion portion that protrudes laterally. The terminal expansion portion is integrally formed with the terminal main body portion. An inlet and an outlet for the refrigerant flow path for connecting a cooling pipe are provided in the terminal expansion portion. The inlet and the outlet of the refrigerant flow path open rearward with respect to the terminal contact portion.

Description

Technical Field

[0001] The present invention relates to a terminal and a power supply connector with a cable.

[0002] This application claims priority based on Japanese Patent Application No. 2019-212198 filed on November 25, 2019, and the content thereof is incorporated herein by reference. Background Art

[0003] The following Patent Document 1 discloses a terminal having a refrigerant flow path formed in a terminal main body portion.

[0004] Prior Art Documents

[0005] Patent Documents

[0006] Patent Document 1: Specification of Chinese Patent Application Publication No. 106887733 Summary of the Invention

[0007] (1) Technical Problem to be Solved

[0008] Regarding the above terminal, a terminal contact portion protrudes forward from the terminal main body portion, and an inlet and an outlet of a refrigerant flow path are provided on a side of the terminal main body portion. A cooling pipe is connected to the inlet and the outlet, and the cooling pipe is made of, for example, a resin material and has elasticity, and bending deformation is applied to the cooling pipe for bundling with an electric wire behind the terminal. Thus, due to the restoring force of the bending, a load may be generated at a connection portion between the terminal and the cooling pipe, causing refrigerant leakage.

[0009] The present invention is completed in view of the above problems, and an object thereof is to provide a terminal and a power supply connector with a cable that can suppress refrigerant leakage from a portion connected to a cooling pipe.

[0010] (2) Technical Solution

[0011] A first aspect of the present invention provides a terminal including: a terminal main body portion having a refrigerant flow path formed therein; and a terminal contact portion protruding forward from the terminal main body portion, the terminal main body portion having a terminal expansion portion protruding laterally, the terminal expansion portion being integrally formed with the terminal main body portion, an inlet and an outlet of the refrigerant flow path for connecting a cooling pipe being provided in the terminal expansion portion, and the inlet and the outlet of the refrigerant flow path opening rearward with respect to the terminal contact portion.

[0012] According to this structure, the inlet and outlet of the refrigerant flow path open rearward with respect to the terminal contact portion. Therefore, the bending generated on the cooling pipes connected to and extending rearward from these inlets and outlets can be alleviated. Thereby, the restoring force of the bending of the cooling pipes can be reduced, and refrigerant leakage from the portion connected to the cooling pipes can be suppressed. In addition, the inlets and outlets of the refrigerant flow path are formed in the terminal expansion portion protruding laterally from the terminal main body portion, so it is easy to provide inlets and outlets that open rearward in the terminal main body portion.

[0013] In addition, according to this structure, there are no interfaces or gaps at least at the boundary between the terminal main body portion and the terminal expansion portion where the refrigerant flow path is formed. Therefore, refrigerant leakage and resistance increase inside the terminal can be suppressed.

[0014] Regarding the second aspect of the present invention, for the terminal according to the first aspect above, the refrigerant flow path has a metallic inner wall surface.

[0015] According to this structure, the refrigerant contacts the inner wall surface with high thermal conductivity, and the cooling efficiency of the terminal can be improved.

[0016] Regarding the third aspect of the present invention, for the terminal according to the second aspect above, the refrigerant flow path is integrally formed with the terminal main body portion.

[0017] According to this structure, it is possible to directly contact the refrigerant and directly perform cooling. Therefore, the cooling efficiency of the terminal can be further improved.

[0018] Regarding the fourth aspect of the present invention, for the terminal according to any one of the first to third aspects above, the inlets and outlets of the refrigerant flow path open obliquely rearward with respect to the terminal contact portion.

[0019] According to this structure, the inlets and outlets of the refrigerant flow path open obliquely rearward with respect to the terminal contact portion. Therefore, the maximum width dimension of the entire terminal can be reduced. Thereby, it is possible to easily introduce the terminal into the housing of a power supply connector, etc. In addition, the base material of the terminal can be reduced, so the cost can be lowered.

[0020] The fifth aspect of the present invention is a power supply connector with a cable, comprising: a cable having a conductor wire and a cooling pipe built therein; and a terminal according to any one of the first to fourth aspects above, which connects the conductor wire and the cooling pipe.

[0021] According to this structure, since the above-mentioned terminal is provided, refrigerant leakage from the portion connected to the cooling pipe can be suppressed.

[0022] (III) Advantageous Effects

[0023] According to the above-described manner of the present invention, refrigerant leakage from the portion connected to the cooling pipe can be suppressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional structure diagram of the terminal of the first embodiment.

[0025] Figure 2 It is a cross-sectional structure diagram of the terminal of the second embodiment.

[0026] Figure 3 It is a three-dimensional external view of the terminal of the second embodiment.

[0027] Figure 4 It is a diagram showing an application example of the power supply connector with a cable of the second embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] Hereinafter, each embodiment of the present invention will be described with reference to the drawings.

[0029] (First Embodiment)

[0030] Figure 1 It is a cross-sectional structure diagram of the terminal 1 of the first embodiment.

[0031] As Figure 1 shown, a refrigerant flow path 2 is formed in the terminal 1. The terminal 1 is applicable to, for example, a power supply connector for rapidly charging an electric vehicle battery, and can cool the Joule heat generated due to the flow of a large current by the refrigerant flowing in the refrigerant flow path 2.

[0032] The terminal 1 is a metal terminal, formed of, for example, copper, copper alloy, etc. The surface of the terminal 1 is covered with a silver plating for preventing corrosion or the like. The terminal 1 includes: a terminal main body portion 10, a terminal contact portion 20, a conductor wire connection portion 30, and a terminal expansion portion 40. The terminal main body portion 10, the terminal contact portion 20, the conductor wire connection portion 30, and the terminal expansion portion 40 are integrally formed.

[0033] That is, at the boundary B1 between the terminal main body portion 10 and the terminal contact portion 20, the boundary B2 between the terminal main body portion 10 and the conductor wire connection portion 30, and the boundary B3 between the terminal main body portion 10 and the terminal expansion portion 40, there are no interfaces or gaps. Such a terminal 1 can be formed by casting or machining from an ingot (casting). In addition, it is preferable that at least the portion where the refrigerant flow path 2 is formed is integrally formed. For example, as long as the terminal main body portion 10 and the terminal expansion portion 40 are integrally formed, the terminal contact portion 20 and the conductor wire connection portion 30 may not be integrally formed.

[0034] The refrigerant flowing in the refrigerant flow path 2 is preferably an insulating refrigerant. By using an insulating refrigerant, leakage of electricity from the terminal 1 through the refrigerant flow path 2 to a cooler (not shown) can be prevented. Examples of insulating refrigerants include insulating refrigerants such as silicone oil and mineral oil, fluorine-based refrigerants, and alcohol-based refrigerants. However, if an insulating layer, insulating film, etc. are formed on the inner wall surface of the refrigerant flow path 2, non-insulating refrigerants can also flow therethrough.

[0035] In addition, when an insulating refrigerant flows through the refrigerant flow path 2 having a metallic inner wall surface, compared with the inner wall surface formed with an insulating layer or insulating film, the heat conductivity of the metallic inner wall surface is higher, so the cooling efficiency of the terminal can be improved.

[0036] In addition, when the refrigerant flow path 2 is integrally formed with the terminal main body portion 10, direct cooling can be performed by directly contacting the refrigerant, so the cooling efficiency of the terminal can be further improved. This is because, compared with the case where they are not integrally formed, the adiabatic effect of the gap air between the refrigerant flow path 2 and the terminal main body portion 10 is suppressed.

[0037] The terminal main body portion 10, the terminal contact portion 20, and the conductor wire connection portion 30 have the central axis O of the terminal 1 as a common axis and are disposed on the same axis. Hereinafter, the direction along the central axis O will be referred to as the axial direction, the direction intersecting the central axis O when viewed from the axial direction will be referred to as the radial direction, and the direction surrounding the central axis O will be referred to as the circumferential direction. In addition, in the axial direction, with respect to the terminal main body portion 10, the terminal contact portion 20 side will be referred to as the front, and with respect to the terminal main body portion 10, the conductor wire connection portion 30 side will be referred to as the rear.

[0038] A refrigerant flow path 2 is formed inside the terminal main body portion 10 and the terminal expansion portion 40. In addition, the terminal main body portion 10 has a terminal expansion portion 40 that expands in the radial direction. The refrigerant flow path 2 of the present embodiment is formed by a hole portion 11 that extends in the radial direction. The hole portion 11 extends in the radial direction to the terminal expansion portion 40 of the terminal main body portion 10. One end of the hole portion 11 penetrates the terminal expansion portion 40A and opens, and the other end of the hole portion 11 does not penetrate the terminal expansion portion 40B and is closed. In addition, the opening portion 11a at one end of the hole portion 11 is closed by a plunger 50.

[0039] The terminal contact portion 20 protrudes forward from the terminal main body portion 10. The terminal contact portion 20 of the present embodiment is a solid pin-shaped (male terminal contact portion) extending in the axial direction. Since the refrigerant flow path 2 is not formed in the terminal contact portion 20, a relatively large cross-sectional area of the conductor can be ensured, which is suitable for flowing a large current. A flange 21 is formed at the root of the terminal contact portion 20. The flange 21 engages with a housing (not shown), determining the limit of protrusion of the terminal contact portion 20 from the housing. In addition, although the terminal contact portion 20 of the present embodiment is pin-shaped, it may also be socket-shaped (female terminal contact portion) like the terminal contact portion 22 on the object side into which the terminal contact portion 20 is inserted.

[0040] The conductor wire connection portion 30 protrudes rearward from the terminal main body portion 10. The conductor wire connection portion 30 is a cylindrical portion extending in the axial direction. The conductor wire connection portion 30 includes: a first hole portion 31 that extends in the axial direction and opens rearward; and a second hole portion 32 that extends radially outward from the inner wall surface of the first hole portion 31 and opens on the outer peripheral surface of the conductor wire connection portion 30. The first hole portion 31 is the insertion hole for the conductor wire 102 of the cable 105 described later. Figure 4 The second hole portion 32 is an exhaust hole for discharging air when the plating solution fills the inside of the first hole portion 31 during electroplating coating of the terminal 1.

[0041] A tapered portion 33 is formed on the terminal main body portion 10 side of the conductor wire connection portion 30. The tapered portion 33 is a conical portion whose radial dimension gradually increases as it goes from the terminal main body portion 10 toward the rear. That is, the conductor wire connection portion 30 has an outer diameter larger than the minimum width dimension W in the radial direction of the terminal main body portion 10 of the portion that is not the terminal expansion portion 40. In addition, the cross-sectional shape of the minimum width portion of the terminal main body portion 10 may be cylindrical, may be rectangular block-shaped, or may be block-shaped on the terminal expansion portion 40 side of the terminal main body portion 10 and cylindrical on the minimum width portion of the terminal main body portion 10. 10 The terminal expansion portion 40 protrudes laterally from the minimum width portion of the terminal main body portion 10. The terminal expansion portion 40 is a pair of rectangular block portions that linearly extend radially outward with respect to the minimum width dimension W of the terminal main body portion 10. In addition, at the boundary B3 between the minimum width portion of the terminal main body portion 10 and the terminal expansion portion 40, there is no interface or gap, etc. The maximum width dimension in the radial direction of the terminal 1 having a pair of terminal expansion portions 40 is W. The maximum width dimension W is larger than the minimum width dimension W in the radial direction of the terminal main body portion 10 and larger than the outer diameter dimension of the conductor wire connection portion 30.

[0042] The terminal expansion portion 40 protrudes laterally from the minimum width portion of the terminal main body portion 10. The terminal expansion portion 40 is a pair of rectangular block portions that linearly extend radially outward with respect to the minimum width dimension W of the terminal main body portion 10. In addition, at the boundary B3 between the minimum width portion of the terminal main body portion 10 and the terminal expansion portion 40, there is no interface or gap, etc. The maximum width dimension in the radial direction of the terminal 1 having a pair of terminal expansion portions 40 is W. The maximum width dimension W is larger than the minimum width dimension W in the radial direction of the terminal main body portion 10 and larger than the outer diameter dimension of the conductor wire connection portion 30. 10 The terminal expansion portion 40 protrudes laterally from the minimum width portion of the terminal main body portion 10. The terminal expansion portion 40 is a pair of rectangular block portions that linearly extend radially outward with respect to the minimum width dimension W of the terminal main body portion 10. In addition, at the boundary B3 between the minimum width portion of the terminal main body portion 10 and the terminal expansion portion 40, there is no interface or gap, etc. The maximum width dimension in the radial direction of the terminal 1 having a pair of terminal expansion portions 40 is W. The maximum width dimension W is larger than the minimum width dimension W in the radial direction of the terminal main body portion 10 and larger than the outer diameter dimension of the conductor wire connection portion 30. 10 The terminal expansion portion 40 protrudes laterally from the minimum width portion of the terminal main body portion 10. The terminal expansion portion 40 is a pair of rectangular block portions that linearly extend radially outward with respect to the minimum width dimension W of the terminal main body portion 10. In addition, at the boundary B3 between the minimum width portion of the terminal main body portion 10 and the terminal expansion portion 40, there is no interface or gap, etc. The maximum width dimension in the radial direction of the terminal 1 having a pair of terminal expansion portions 40 is W. The maximum width dimension W is larger than the minimum width dimension W in the radial direction of the terminal main body portion 10 and larger than the outer diameter dimension of the conductor wire connection portion 30.

[0043] In one terminal expansion part 40A of the terminal expansion part 40, there are formed the opening part 11a of the above-mentioned hole part 11 and the inflow port 2a of the refrigerant flow path 2. Further, in the other terminal expansion part 40B of the terminal expansion part 40, there is formed the outflow port 2b of the refrigerant flow path 2. These inflow port 2a and outflow port 2b open rearward with respect to the terminal contact part 20. The inflow port 2a and outflow port 2b are arranged on the radially outer side with respect to the outer diameter (i.e., radius R) of the conductor wire connection part 30.

[0044] A cooling pipe 101 is connected to the inflow port 2a and the outflow port 2b via a pipe joint 101a. The cooling pipe 101 does not interfere with the conductor wire connection part 30 arranged behind the terminal main body part 10, and the cooling pipe 101 extends rearward from the inflow port 2a and the outflow port 2b. The cooling pipe 101 is formed of a pipe made of a resin such as nylon, and has a certain degree of elasticity (rebound force, restoring force), flexibility, and heat resistance with respect to bending.

[0045] The terminal 1 according to the above structure includes: a terminal main body part 10 in which a refrigerant flow path 2 is formed; and a terminal contact part 20 that protrudes forward from the terminal main body part 10. The terminal main body part 10 has a terminal expansion part 40 that protrudes laterally. In the terminal expansion part 40, there are provided the inflow port 2a and the outflow port 2b of the refrigerant flow path 2 for connecting the cooling pipe 101, and the inflow port 2a and the outflow port 2b of the refrigerant flow path 2 open rearward with respect to the terminal contact part 20. Therefore, the cooling pipe 101 connected to these inflow port 2a and outflow port 2b and extending rearward can be arranged rearward with a large bending radius. Thus, the load acting on the part connected to the cooling pipe 101 (for example, the part where the terminal 1 is connected to the pipe joint 101a or the part where the pipe joint 101a is connected to the cooling pipe 101 (interface)) is substantially eliminated, and refrigerant leakage can be suppressed. In addition, no severe bending deformation is applied to the cooling pipe 101, and the cooling pipe 101 can be arranged rearward of the terminal 1. Therefore, the malfunction of the cooling pipe 101 buckling and blocking can be suppressed. As a result, the elongation degree of the cooling pipe 101 in the radial direction is reduced, and thus it is possible to easily assemble the power supply connector in the narrow space inside the housing.

[0046] Further, in the present embodiment, since there is a terminal expansion part 40 that protrudes laterally from the terminal main body part 10, and the inflow port 2a and the outflow port 2b of the refrigerant flow path 2 are formed in the terminal expansion part 40, it is easy to provide the inflow port 2a and the outflow port 2b that open rearward in the terminal main body part 10.

[0047] In addition, in the present embodiment, regarding the above-mentioned terminal 1, the terminal main body portion 10 and the terminal expansion portion 40 are integrally formed. According to this structure, at least at the boundary B3 between the terminal main body portion 10 and the terminal expansion portion 40 where the refrigerant flow path 2 is formed, there are no interfaces or gaps, etc., so that refrigerant leakage and resistance increase inside the terminal 1 can be suppressed.

[0048] (Second Embodiment)

[0049] Next, a second embodiment of the present invention will be described. In the following description, the same or equivalent structures as those in the above-mentioned embodiment are denoted by the same reference numerals, and the description thereof will be simplified or omitted.

[0050] Figure 2 is a cross-sectional structure diagram of the terminal 2 of the first embodiment. Figure 3 is an external perspective view of the terminal 1 of the second embodiment.

[0051] As Figure 2 shown, in the second embodiment, the difference from the above-mentioned embodiment is that in order to reduce the maximum width dimension W of the terminal 1, the inlet 2a and the outlet 2b of the refrigerant flow path 2 are opened obliquely backward with respect to the terminal contact portion 20.

[0052] In the second embodiment, as Figure 3 shown, the terminal main body portion 10 has a shape in which a cylinder is joined to the rear of a block. The terminal expansion portion 40 has a shape that expands the block of the terminal main body portion 10 radially outward. In addition, regarding the boundary B3 between the minimum width portion of the terminal main body portion 10 and the terminal expansion portion 40, as Figure 2 shown, with the minimum width dimension W in the radial direction of the cylinder of the terminal main body portion 10 10 as a reference.

[0053] The terminal expansion portion 40 has: a flat portion 43 that is parallel to the central axis O of the terminal 1; a first inclined portion 44 that moves away from the central axis O as it goes rearward from the flat portion 43; and a second inclined portion 45 that approaches the central axis O as it goes rearward from the first inclined portion 44. In Figure 2 the example shown, the angle (elevation angle) of the first inclined portion 44 with respect to the flat portion 43 is 45 degrees or less, for example, an acute angle of 30 degrees. In addition, the angle (depression angle) of the second inclined portion 45 with respect to the first inclined portion 44 is, for example, a right angle of 90 degrees. That is, the terminal expansion portion 40 is substantially in the shape of a right triangle when viewed from the side.

[0054] The inlet 2a and the outlet 2b of the refrigerant flow path 2 are formed in the second inclined portion 45. That is, the inlet 2a and the outlet 2b are formed at an angle of 45 degrees or less, for example, an acute angle (elevation angle) of 30 degrees, with respect to the central axis O. By forming the inlet 2a and the outlet 2b at an angle of 45 degrees or less with respect to the central axis O in this way, the load acting on the portion where the terminal 1 is connected to the cooling pipe 101 can be reduced more effectively. In addition, since the inlet 2a and the outlet 2b open obliquely rearward, no conductor wire connection portion 30 is arranged on their extension lines.

[0055] The refrigerant flow path 2 of the second embodiment is formed by the hole portion 11, the first inclined hole portion 41, and the second inclined hole portion 42. The hole portion 11 extends along the above-mentioned radial direction. The first inclined hole portion 41 extends forward from the inlet 2a in a manner approaching the central axis O and is connected to one end side of the hole portion 11. The second inclined hole portion 42 similarly extends forward from the outlet 2b in a manner approaching the central axis O and is connected to the other end side of the hole portion 11. That is to say, the refrigerant flow path 2 of the second embodiment includes a flow path that extends obliquely with respect to the central axis O.

[0056] According to the terminal 1 of the above-mentioned second embodiment, the inlet 2a and the outlet 2b of the refrigerant flow path 2 open obliquely rearward with respect to the terminal contact portion 20. Therefore, the bending generated on the cooling pipe 101 connected to these inlets 2a and outlets 2b and extending rearward can be alleviated. Thereby, the restoring force of the bending of the cooling pipe 101 can be reduced, and refrigerant leakage from the portion connected to the cooling pipe 101 can be suppressed.

[0057] In addition, in the second embodiment, the inlet 2a and the outlet 2b of the refrigerant flow path 2 open obliquely rearward with respect to the terminal contact portion 20. Therefore, compared with Figure 1 the terminal expansion portion 40 shown, the size required in the radial direction can be reduced, and the maximum width dimension W of the entire terminal 1 can be reduced. Thereby, the power supply connector with a cable having the cooling pipe 101 and a conductor wire (not shown) connected to the terminal 1 can be made compact. In addition, the base material of the terminal 1 can be reduced, and the cost can be lowered.

[0058] Figure 4 FIG. is a diagram showing a power supply connector 100 with a cable having the terminal 1 of the second embodiment.

[0059] Figure 4The power supply connector 100 with a cable shown is composed of a terminal 1, a cable 105, and a housing 200. The terminal 1 is connected to the cable 105 and introduced into the interior of the housing 200, and the housing 200 can be inserted into the charging port (socket part) of an electric vehicle. The cable 105 is internally provided with a conductor wire 102 for supplying power to the power supply object and a cooling pipe 101 for cooling the conductor wire 102. The cable 105 can adopt, for example, a cable with the same structure as the power supply cable described in Japanese Patent No. 6078198. Specifically, the cable 105 is internally provided with a plurality of (an even number of) power lines 103, and the cooling pipe 101 and the conductor wire 102 are provided inside the power line 103. Inside the power line 103, a plurality of conductor wires 102 are collectively twisted around the cooling pipe 101. Thus, the heat generated by the conductor wire 102 due to energization can be suppressed by the refrigerant liquid flowing in the cooling pipe 101. A signal line for communication between the power supply device and the electric vehicle may also be provided inside the cable 105.

[0060] The cooling pipe 101 and the conductor wire 102 branch behind the terminal 1 and are respectively connected to the terminal 1. The branched cooling pipe 101 is connected to the inlet 2a and the outlet 2b of the terminal expansion part 40 of the terminal 1. In addition, the branched conductor wire 102 is inserted into the first hole part 31 of the conductor wire connection part 30 and compression-connected. In addition, although not shown, two terminals 1 and two cables 105 are provided on the housing 200 for the + terminal and the - terminal.

[0061] The housing 200 includes: an insertion part 201 where the terminal contact part 20 of the terminal 1 is arranged; a gripping part 202 arranged behind the insertion part 201; and a cable introduction part 203 arranged below the gripping part 202 (diagonally behind the insertion part 201). The cable 105 is introduced into the housing 200 from the outside of the housing 200 through the cable introduction part 203 and connected to the terminal 1. According to the terminal 1 of the second embodiment, the maximum width dimension W is reduced, so the occupancy rate inside the housing 200 is reduced, and it is possible to easily ensure the miniaturization of the housing 200 and the wiring space for other signal lines (not shown).

[0062] In addition, the above Figure 4 The power supply connector 100 with a cable shown may also be provided with the terminal 1 of the above first embodiment.

[0063] The preferred embodiments of the present invention have been described above, but they are only illustrative rather than restrictive of the present invention. Additions, omissions, substitutions, and other changes can be made without departing from the scope of the present invention. Therefore, the present invention is not limited by the above content but is defined by the claims.

[0064] Description of reference numerals

[0065] 1 - Terminal; 2 - Refrigerant flow path; 2a - Inlet; 2b - Outlet; 10 - Terminal main body; 20 - Terminal contact portion; 30 - Conductor wire connection portion; 40 - Terminal expansion portion; 100 - Power supply connector with cable; 101 - Cooling pipe; 102 - Conductor wire; 103 - Power line; 105 - Cable.

Claims

1. A terminal comprising: a terminal body portion having a refrigerant flow path formed therein; a terminal contact portion protruding forward from the terminal body portion; and a conductor wire connecting portion protruding toward the rear of the terminal main body portion, The terminal main body has a terminal expansion portion protruding laterally. The terminal expansion portion is integrally formed with the terminal main body portion, The terminal expansion portion is provided with an inlet and an outlet for connecting the refrigerant flow path of the cooling pipe. The inlet and outlet of the refrigerant flow path are open toward the rear relative to the terminal contact portion. The inlet and outlet of the refrigerant flow path are arranged outside the conductor wire connection portion. The refrigerant flow path includes a hole portion extending in the radial direction of the terminal body portion, and the terminal contact portion is in the shape of a solid pin extending in the axial direction. The inlet and the outlet of the refrigerant flow path open obliquely rearward relative to the terminal contact portion, and the inlet and the outlet are formed at an angle of 45 degrees or less relative to the central axis of the terminal.

2. The terminal according to claim 1, characterized in that: The refrigerant flow path has a metallic inner wall surface.

3. The terminal according to claim 2, characterized in that: The refrigerant flow path is integrally formed with the terminal body.

4. The terminal according to claim 1, characterized in that: The terminal main body, the terminal contact portion, the conductor wire connecting portion, and the terminal expansion portion are integrally formed.

5. A power supply connector with a cable, comprising: A cable having a conductor wire and a cooling tube built therein; and The terminal according to any one of claims 1 to 4, which connects the conductor wire and the cooling pipe.

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