Charging inlet

Abstract

To provide a charging inlet capable of suppressing a temperature increase at a charging while suppressing an increase in weight and cost of peripherals of the inlet and an increase in size of the inlet.SOLUTION: A charging inlet 100 comprises: a connector terminal 110; a housing 120 in which the connector terminal 110 is inserted in a predetermined insertion direction D11 and is housed; and a heat leading component 130 that is detachably housed in the housing 120 so as to become a state of being in contact in a contact direction D12 crossing with the insertion direction D11 with an electric wire terminal W111 (indirect member) in contact with the electric wire connection part 112 (absorbed thermal part) that is connected to a mating connector terminal in the connector terminal 110 and is separated from an insertion direction D11 from the terminal part 111 to an opposite side, or with the electric wire 112 (absorbed thermal part), and absorbs heat of an electric wire connection part 112 (absorbed thermal part) in the connector terminal 110.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a charging inlet in which a connector terminal is accommodated in a housing. [Background technology]

[0002] Charging inlets are used as vehicle-side connectors for charging batteries mounted on electric vehicles (EVs) and plug-in hybrid electric vehicles (PHVs) from an external power source (see, for example, Patent Document 1). A charging inlet has a connector terminal housed in a housing and has a mechanism compatible with charging standards for connecting to a mating connector for charging. In the charging inlet of Patent Document 1, the connector terminal is connected inside the housing to an electric wire extending to the battery to be charged.

[0003] In recent years, there has been a trend toward larger charging currents in order to meet the needs for larger capacity batteries charged through charging inlets and shorter charging times. When the current in a charging inlet increases, the main problem is heat generation around the connector terminal. One example of a method for dealing with such heat generation is to increase the diameter of the electric wire connected to the connector terminal, thereby reducing the connection resistance with the connector terminal and improving the heat dissipation ability of the electric wire. Around the connector terminal, resistance is high at the contact points with the mating connector terminal, and as a result, heat generation tends to be large. The heat generated in such areas is dissipated by the large-diameter electric wire, thereby suppressing the temperature rise during charging. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-133278 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, if the above-mentioned solutions result in an increase in the diameter of the electric wire extending from the charging inlet, it not only increases the weight and cost around the inlet, but also potentially leads to an increase in the size of the inlet in order to pass the larger diameter electric wire inside.

[0006] Therefore, the present invention focuses on the above-mentioned problems and aims to provide a charging inlet that can suppress temperature rise during charging while preventing increases in weight and cost around the inlet and increases in inlet size. [Means for solving the problem]

[0007] In order to solve the above problem, a charging inlet includes: a connector terminal to be connected to a mating connector terminal for charging; a housing in which the connector terminal is inserted in a predetermined insertion direction and accommodated in a state connectable with the mating connector terminal; and a heat sink component that is detachably accommodated in the housing so as to be in contact with a heat absorption portion of the connector terminal away from a terminal portion that connects with the mating connector terminal on the opposite side to the insertion direction, or with an intermediate member in contact with the heat absorption portion, in a contact direction intersecting the insertion direction, and that absorbs heat from the heat absorption portion when accommodated in the housing. When accommodated in the housing, the heat-dissipating component is in contact with a predetermined adjacent portion and dissipates heat absorbed from the heat-absorbed portion to the adjacent portion, and the housing is provided with a heat-dissipating component accommodating chamber that is integrally formed with an outer wall of the housing, has one end opening toward the outside and the other end opening toward the heat-absorbed portion of the connector terminal, and is cylindrical and extends in the contact direction, allowing the heat-dissipating component to be inserted and removed from the one end. The heat-dissipating component is inserted into the heat-dissipating component accommodating chamber from the opening on the one end side in the contact direction, and is held inside the heat-dissipating component accommodating chamber by a predetermined removable member, so that the heat-dissipating component is detachably accommodated in the housing, protrudes from the opening on the other end side to absorb heat from the heat-absorbed portion, and dissipates heat by contacting the inner circumferential surface of the heat-dissipating component accommodating chamber as the adjacent portion. It is characterized by: Effect of the Invention

[0008] According to the above-described charging inlet, it is possible to suppress an increase in temperature during charging while suppressing an increase in the weight and cost around the inlet and an increase in the size of the inlet. [Brief description of the drawings]

[0009] [Figure 1] 1 is a plan view of a charging inlet according to one embodiment, as viewed from the side from which electric wires extend. FIG. [Diagram 2] 2 is a cross-sectional view showing a cross section of the charging inlet shown in FIG. 1 taken along line V11-V11 in FIG. [Diagram 3]3 is a perspective view showing how a heat dissipation member is attached to the charging inlet shown in FIGS. 1 and 2, as viewed from the connection side of the charging inlet with a mating connector. FIG. [Figure 4] 4 is a cross-sectional view similar to that of FIG. 2 showing how the heat-dissipating member shown in FIG. 3 is attached. FIG. [Diagram 5] FIG. 5 is a schematic diagram showing how a temperature rise caused by heat during charging is suppressed by the heat-dissipating parts shown in FIGS. 2 to 4. [Figure 6] FIG. 6 is a diagram showing a comparative example for comparison with the charging inlets shown in FIGS. 1 to 5. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] An embodiment of the charging inlet will be described below.

[0011] Fig. 1 is a plan view of a charging inlet according to an embodiment, seen from the extending side of an electric wire, and Fig. 2 is a cross-sectional view of the charging inlet shown in Fig. 1 taken along line V11-V11 in Fig. 1. Fig. 3 is a perspective view of the charging inlet shown in Figs. 1 and 2, seen from the connection side of the charging inlet with a mating connector, showing how a heat-dissipating member is attached. And Fig. 4 is a cross-sectional view similar to Fig. 2, showing how the heat-dissipating member shown in Fig. 3 is attached.

[0012] The charging inlet 100 is a component used in electric vehicles (EVs) and plug-in hybrid electric vehicles (PHVs) to charge a battery mounted on the vehicle body from an external power source. A DC socket 101 through which a direct current for charging the battery flows and an AC socket 102 through which an alternating current for charging flows are provided on the connecting side of the charging inlet 100 to connect to a mating connector. A DC electric wire W11 for charging, which passes the direct current for charging through the DC socket 101, and an AC electric wire W12, which passes the alternating current through the AC socket 102, extend from the opposite side of the charging inlet 100 to the connecting side. The DC electric wire W11 extends to the battery, and the AC electric wire W12 extends to an AC device.

[0013] Here, charging inlet 100 in this embodiment is characterized in its DC-related parts, and the cross-sectional views in Fig. 2 and Fig. 4 show a cross section passing through DC socket 101, and the perspective view in Fig. 3 shows the external appearance as seen from the DC socket 101 side. The following describes charging inlet 100, focusing on its DC-related parts. This charging inlet 100 includes two connector terminals 110, a housing 120, and a heat-dissipating component 130.

[0014] The connector terminal 110 is a metal terminal in the DC socket 101 of the charging inlet 100. The connector terminal 110 is connected to the DC electric wire W11 inside the charging inlet 100. The connector terminal 110 is a male terminal including a round pin-shaped terminal portion 111 connected to a mating connector terminal and a block-shaped electric wire connection portion 112 separated from the terminal portion 111 on the opposite side of the insertion direction D11 and connected to the DC electric wire W11. In this embodiment, the electric wire connection portion 112 in the connector terminal 110 is a portion fastened to the electric wire terminal W111 provided at the end of the DC electric wire W11 by a bolt 140. The electric wire connection portion 112 is formed with a female screw hole 112a into which the fastening bolt 140 is screwed.

[0015] The housing 120 is a resin member in which two connector terminals 110 are inserted in a predetermined insertion direction D11 and housed in a state in which they can be connected to the mating connector terminals in the DC socket 101. Although not described here, the housing 120 also houses an AC connector terminal in a state in which it can be connected to the AC mating connector terminal in the AC socket 102. The housing 120 includes a main housing 121 that constitutes the mating side with the mating connector, and a terminal holder 122 in which the electric wire connection portion 112 of the DC connector terminal 110 is housed. The connector terminal 110 has the terminal portion 111 located inside the main housing 121 and the electric wire connection portion 112 located inside the terminal holder 122. The electric wire connection portion 112 is bolted to the electric wire terminal W111 at the end of the DC electric wire W11 inside the terminal holder 122.

[0016] The heat-dissipating part 130 is a member that is detachably housed in the housing 120, and when housed in the housing 120, absorbs heat generated by the connector terminal 110 during charging and dissipates the heat to the housing 120. The heat-dissipating part 130 is housed in such a way that the electric wire connection part 112 of the connector terminal 110 is a heat-absorbing part, and the heat-dissipating part 130 is in contact with the electric wire terminal W111, which serves as an indirect member that contacts the electric wire connection part 112, in a contact direction D12 that intersects with the insertion direction D11. When housed in the housing 120, the heat-dissipating part 130 absorbs heat from the electric wire connection part 112.

[0017] In this embodiment, the terminal holder 122 of the housing 120 is provided with the following heat-dissipating component accommodating chambers 122a, one for each connector terminal 110. Each heat-dissipating component accommodating chamber 122a is integrally formed with the outer wall of the terminal holder 122. The heat-dissipating component accommodating chamber 122a is provided in a tubular shape, specifically a cylindrical shape, extending in the contact direction D12 so that one end opens toward the outside and the other end opens toward the wire connection portion 112 of the connector terminal 110.

[0018] The heat-drawing component 130 is accommodated in the heat-drawing component accommodating chamber 122a in a contact direction D12 from an opening 122a-1 on one end side that opens to the outside of the terminal holder 122 in the heat-drawing component accommodating chamber 122a. The heat-drawing component 130 protrudes from an opening 122a-2 on the other end side of the heat-drawing component accommodating chamber 122a to contact the electric wire terminal W111, and contacts the inner peripheral surface 122a-3 of the heat-drawing component accommodating chamber 122a, which is an adjacent part of the heat dissipation target. The heat-drawing component 130 is a cylindrical member corresponding to the cylindrical shape of the heat-drawing component accommodating chamber 122a. The heat-drawing component 130 is accommodated in the heat-drawing component accommodating chamber 122a in a state in which the outer peripheral surface 131 is in contact with the cylindrical inner peripheral surface 122a-3 over the entire circumference.

[0019] In this embodiment, the heat-dissipating part 130 is fastened together with the electric wire connection part 112 and the electric wire terminal W111 of the connector terminal 110 by the bolt 140. In this fastening, the heat-dissipating part 130 is attached so as to sandwich the electric wire terminal W111 between the heat-dissipating part 130 and the electric wire connection part 112 of the connector terminal 110. The heat-dissipating part 130 is provided with a through hole 132 for the bolt 140.

[0020] During assembly, as shown in Fig. 4, after the connector terminal 110 is inserted in the insertion direction D11, the wire terminal W111 is inserted in the wire insertion direction D111, which is the same as the insertion direction D11, and the heat-drawing component 130 is inserted in the contact direction D12 into the heat-drawing component housing chamber 122a. Then, inside the terminal holder 122, the female screw hole 112a of the wire connection part 112, the terminal hole W111a of the wire terminal W111, and the through hole 132 of the heat-drawing component 130 communicate with each other. Then, the bolt 140 passes through the through hole 132 of the heat-drawing component 130 and the terminal hole W111a of the wire terminal W111 and is screwed into the female screw hole 112a of the wire connection part 112. By this bolt tightening, the heat-drawing component 130 is tightened and fixed together with the wire connection part 112 of the connector terminal 110 and the wire terminal W111. After the heat-dissipating components 130 are attached, the openings 122a-1 on the exterior side of the two heat-dissipating component housing chambers 122a are closed with one cap member 122b as shown in FIGS.

[0021] The heat-dissipating part 130 fixed in this manner protrudes from the opening 122a-2 on the connector terminal 110 side of the heat-dissipating part housing chamber 122a, contacts the electric wire terminal W111, and contacts the inner peripheral surface 122a-3 of the heat-dissipating part housing chamber 122a with its outer peripheral surface 131. When heat is generated in the terminal portion 111 of the connector terminal 110, which is a contact portion with the mating connector terminal and has high resistance during charging, the temperature rise caused by the heat at that time is suppressed by the heat-dissipating part 130 as follows.

[0022] Fig. 5 is a schematic diagram showing how the heat-dissipating component shown in Fig. 2 to Fig. 4 suppresses a temperature rise caused by heat during charging. Fig. 5 shows an enlarged view of the periphery of the heat-dissipating component 130 in the cross-sectional view of Fig. 2.

[0023] When heat P11 generated at the connector terminal 110 during charging through the charging inlet 100 is transmitted to the electric wire connection portion 112, it is absorbed by the heat-drawing component 130 as shown in Fig. 5. That is, the heat P11 transmitted to the electric wire connection portion 112 is indirectly absorbed by the heat-drawing component 130 through the electric wire terminal W111 that contacts the electric wire connection portion 112 in a heat-drawing direction D13 along a contact direction D12 of the heat-drawing component 130 with the electric wire terminal W11. The heat-drawing component 130 then dissipates the absorbed heat P11 from the outer peripheral surface 131 to the inner peripheral surface 122a-3 of the heat-drawing component housing chamber 122a, which is an adjacent portion, in a heat-dissipating direction D14. The dissipated heat P11 is diffused to various parts of the housing 120 through the terminal holder 122. The above-described heat absorption, heat dissipation, and diffusion suppress the temperature rise at charging inlet 100 during charging.

[0024] Here, in this embodiment, an electrically conductive heat-dissipating part made of an electrically conductive material and a non-conductive heat-dissipating part made of a non-conductive material are prepared as the heat-dissipating part 130. The electrically conductive material may be a conductive metal such as copper (Cu) or aluminum (Al). The non-conductive material may be a resin such as various plastics. The connector terminal 110 is accommodated in the housing 120 in a state switchable manner in any one of a first state, a second state, and a third state. The first state is a state in which an electrically conductive heat-dissipating part is installed as the heat-dissipating part 130 and heat is absorbed from the connector terminal 110. The second state is a state in which a non-conductive heat-dissipating part is installed as the heat-dissipating part 130 and heat is absorbed from the connector terminal 110. The third state is a state in which the heat-dissipating part 130 is not installed and heat absorption during charging is not actively performed. In the third state, heat is absorbed more slowly by the contact portions between the connector terminals 110 and the housing 120, the electric wire terminals W111, and the DC electric wires W11 than when the heat-dissipating component 130 is used.

[0025] Before describing the effects obtained by the charging inlet 100 of the embodiment described above, a comparative example to this embodiment will be described.

[0026] Fig. 6 is a diagram showing a comparative example for comparison with the charging inlets shown in Fig. 1 to Fig. 5. Fig. 6 shows a charging inlet 500 of the comparative example in a cross section passing through a DC electric wire W51 extending from the charging inlet 500. In the cross section of Fig. 6, the right side of the figure is the side from which the DC electric wire W51 extends, and the left side of the figure is the side that is connected to a mating connector.

[0027] In the charging inlet 500 of the comparative example, the conductor of the DC electric wire W51 is directly connected to the connector terminal 510 by soldering. In this comparative example, a member such as the heat-drawing component 130 in the above-mentioned embodiment is not provided inside the housing 520. Heat P51 that is generated at the contact portion between the connector terminal 510 and the mating connector terminal during charging and that is transferred inside the connector terminal 510 is absorbed, transferred, and diffused mainly by the DC electric wire W51 along the extension direction D51, thereby suppressing a temperature rise during charging. In order to fully suppress such a temperature rise, in this comparative example, the diameter of the DC electric wire W51 is increased to reduce the connection resistance with the connector terminal 510 and improve the heat-drawing ability of the DC electric wire W51. However, increasing the diameter of the DC wire W51 extending from the charging inlet 500 not only increases the weight and cost around the inlet, but also may result in an increase in the size of the inlet due to the need to pass the larger diameter DC wire W51 inside the housing 520.

[0028] In contrast to the charging inlet 500 of the comparative example described above, the charging inlet 100 of the embodiment described with reference to FIGS. 1 to 5 can provide the following effects. That is, in this embodiment, the heat P11 generated in the connector terminal 110 is absorbed by the heat-drawing component 130. The heat-drawing component 130 contacts the wire terminal W111, which is in contact with the wire connection portion 112 as the heat-absorption portion of the connector terminal 110 as an intermediate member, in a contact direction D12 intersecting with the insertion direction D11 of the connector terminal 110. By this contact, the heat P11 of the connector terminal 110 is absorbed from the connector terminal 110 by the heat-drawing component 130 before it is directed toward the DC wire W11. Therefore, the temperature rise during charging in the charging inlet 100 can be suppressed without changing the size, etc., of the DC wire W11 connected to the connector terminal 110. Furthermore, since the size, etc. of the DC wire W11 is maintained as is, the increase in weight and cost around the inlet and the increase in the size of the inlet are also suppressed. Thus, according to the charging inlet 100 of the present embodiment, it is possible to suppress an increase in temperature during charging while suppressing an increase in the weight and cost around the inlet and an increase in the size of the inlet.

[0029] Here, in this embodiment, the heat-dissipating component 130 is in contact with the adjacent part, that is, the inner circumferential surface 122a-3 of the heat-dissipating component accommodating chamber 122a, when accommodated in the housing 120. The heat-dissipating component 130 dissipates heat absorbed from the electric wire connection part 112, which is the heat-absorption part, to the inner circumferential surface 122a-3 of the heat-dissipating component accommodating chamber 122a, which is the adjacent part. With this configuration, the heat-dissipating component 130 can be made smaller while suppressing a temperature rise during charging by dissipating heat from the heat-dissipating component 130.

[0030] In this embodiment, a cylindrical heat-dissipating component housing chamber 122a is provided to connect the inside and outside of the housing 120. The heat-dissipating component 130 is housed in the heat-dissipating component housing chamber 122a, protrudes from the opening 122a-2 to absorb heat, and dissipates heat by contacting the inner circumferential surface 122a-3 of the heat-dissipating component housing chamber 122a. With this configuration, heat can be dissipated to the inner circumferential surface 122a-3 of the heat-dissipating component housing chamber 122a provided in the housing 120, which is a part with a large heat capacity, so that the temperature rise during charging can be further suppressed. In addition, since the heat-dissipating component housing chamber 122a is provided in a cylindrical shape connecting the inside and outside of the housing 120, the heat-dissipating component 130 can be attached, detached, and housed with good workability.

[0031] In this embodiment, the heat-dissipating component housing chamber 122a is formed in a cylindrical shape, and when housed, the outer peripheral surface 131 of the cylindrical heat-dissipating component 130 contacts the inner peripheral surface 122a-3 of the heat-dissipating component housing chamber 122a over the entire circumference. With this configuration, the outer peripheral surface 131 of the cylindrical heat-dissipating component 130 serves as a heat dissipating surface for the inner peripheral surface 122a-3 of the cylindrical heat-dissipating component housing chamber 122a over its entire circumference, thereby increasing the heat dissipating area and improving the heat dissipation performance.

[0032] In this embodiment, the heat-dissipating part 130 absorbs heat indirectly through the electric wire terminal W111, which is fastened together with the electric wire connection part 112 by the bolt 140, using the electric wire connection part 112 of the connector terminal 110 as the heat-absorbing part, by using the bolt 140. With this configuration, the connection of the connector terminal 110 to the electric wire and the contact and fixation of the heat-dissipating part 130 to the connector terminal 110 are performed by a single bolt fastening, so that the efficiency of the assembly work can be improved.

[0033] In this embodiment, an electrically conductive heat-dissipating component and a non-conductive heat-dissipating component are prepared as the heat-dissipating component 130. The connector terminal 110 is accommodated in the housing 120 in a state switchable among a first state in which the electrically conductive heat-dissipating component is installed, a second state in which the non-conductive heat-dissipating component is installed, and a third state in which the heat-dissipating component 130 is not installed.

[0034] In electric vehicles (EVs) and plug-in hybrid electric vehicles (PHVs), the current conduction performance (called current conduction requirements) required during charging varies depending on the vehicle model. There are three typical types of current conduction requirements: The first type is a performance-oriented type in which a large battery is mounted and rapid charging is performed with a large current, and sufficient suppression of temperature rise is required while allowing a certain degree of cost increase. The second type is a cost-oriented type in which rapid charging is performed with a large current, and cost reduction is required while allowing a certain degree of temperature rise. The third type is a small current type in which the mounted battery is small and the charging current is small, so that there is no need to worry much about temperature rise during charging. According to the above-mentioned configuration, the installation of the heat-conducting component 130 can be appropriately used according to the above-mentioned three types of current conduction requirements by switching the accommodation state of the connector terminal 110 by selectively installing the conductive heat-conducting component and the non-conductive heat-conducting component or not installing the heat-conducting component 130.

[0035] The above-described embodiment merely shows a typical form of the charging inlet, and the charging inlet is not limited to this embodiment and can be modified in various ways.

[0036] For example, in the above-described embodiment, the charging inlet 100 used in electric vehicles (EVs), plug-in hybrid electric vehicles (PHVs), etc. for charging batteries is illustrated as an example of the charging inlet. However, the charging inlet is not limited to this, and there is no restriction on the specific application of the charging inlet as long as it has a connection mechanism with a counterpart connector for charging.

[0037] In the above-described embodiment, the heat-dissipating part 130 is exemplified as an example of the heat-dissipating part, which contacts the electric wire terminal W111 as an indirect member that contacts the heat-absorbing part of the connector terminal 110 to perform the heat-dissipating operation. However, the heat-dissipating part is not limited to this, and may be a part that directly contacts the heat-absorbing part of the connector terminal to perform the heat-dissipating operation.

[0038] In the above-described embodiment, the heat-dissipating part 130 is exemplified as an example of the heat-dissipating part, which has the inner circumferential surface 122a-3 of the heat-dissipating part chamber 122a provided in the housing 120 as an adjacent part and dissipates heat by contacting the inner circumferential surface 122a-3. However, the heat-dissipating part is not limited to this, and may be one that dissipates heat into the air without contacting anything other than the heat-absorbing part of the connector terminal or an indirect member. However, as described above, the heat-dissipating part 130 that dissipates heat by contacting some adjacent part can further suppress the temperature rise during charging.

[0039] In the above embodiment, the inner circumferential surface 122a-3 of the cylindrical heat-dissipating component housing chamber 122a provided in the terminal holder 122 is exemplified as an example of the adjacent portion with which the heat-dissipating component comes into contact to dissipate heat, but the adjacent portion is not limited to this. The adjacent portion to the heat-dissipating component may be of any specific form as long as it is a portion with which the heat-dissipating component can come into contact and dissipate heat. However, as described above, by making the inner circumferential surface 122a-3 of the cylindrical heat-dissipating component housing chamber 122a the adjacent portion to the heat-dissipating component 130, not only is it possible to suppress the temperature rise, but also to perform the attachment, detachment, and accommodation of the heat-dissipating component 130 with good workability.

[0040] In the above embodiment, the heat-dissipating component housing chamber 122a formed in a cylindrical shape is exemplified as an example of the heat-dissipating component housing, and the columnar heat-dissipating component 130 is exemplified as an example of the heat-dissipating component. However, the shapes of the heat-dissipating component housing chamber and the heat-dissipating component are not limited to a cylindrical shape and a columnar shape, and any shape can be adopted as long as the outer circumferential surface of the heat-dissipating component is in contact with the inner circumferential surface of the cylindrical heat-dissipating component housing chamber and can dissipate heat. However, as described above, the cylindrical heat-dissipating component housing chamber 122a and the columnar heat-dissipating component 130 can increase the heat dissipation area of ​​the heat-dissipating component 130 and improve the heat dissipation performance.

[0041] In the above-described embodiment, the heat-drawing part 130 is fastened together with the wire terminal W111, which is an intermediate member, to the electric wire connection part 112, which is the heat-absorbing part, and indirectly absorbs heat from the connector terminal 110. However, the heat-drawing part is not limited to this, and the specific member form is not important even if it absorbs heat via the intermediate member. The fixing method is also not limited to fastening together, and the heat-drawing part and the intermediate member may be fixed separately. However, as described above, by fastening together the heat-drawing part 130 with the electric wire terminal W111 as the intermediate member, the electric wire connection and the fixing of the heat-drawing part 130 can be done with one bolt fastening, and the efficiency of the assembly work can be improved.

[0042] In the above-described embodiment, the charging inlet 100 in which the connector terminal 110 is accommodated in a state switchable manner in three types of states, first to third, is exemplified as an example of the charging inlet. The first state is a state in which an electrically conductive heat-dissipating component is installed together with the connector terminal 110, and the second state is a state in which a non-conductive heat-dissipating component is installed together with the connector terminal 110. The third state is a state in which the heat-dissipating component 130 is not installed. However, the charging inlet is not limited to this, and may be one in which a uniquely determined heat-dissipating component is always installed together with the connector terminal. However, as described above, the above-described state switching can appropriately respond to the current supply requirements in electric vehicles (EVs), plug-in hybrid electric vehicles (PHVs), and the like, such as a performance-oriented first type, a cost-oriented second type, and a low-current type. [Explanation of symbols]

[0043] 100 Charging Inlet 101 DC socket 102 AC socket 110 Connector terminal 111 Terminal part 112 Wire connection part (heat absorbed part) 112a Female thread hole 120 Housing 121 Main body housing 122 Terminal Holder 122a Heat dissipation parts storage room 122a-1,122a-2 opening 122a-3 Inner surface (adjacent part) 122b Cap member 130 Heat sink parts 131 Outer surface 132 Through hole 140 Volts D11 Insertion direction D12 Contact direction D13 Heat extraction direction D14 Heat dissipation direction P11 fever W11 DC wire W111 Wire terminal (indirect parts) W111a terminal hole W12 AC electric wire W

Claims

1. A connector terminal to be connected to a mating connector terminal for charging; a housing in which the connector terminal is inserted in a predetermined insertion direction and accommodated in a state in which the connector terminal can be connected to the mating connector terminal; a heat sink part that is detachably housed in the housing so as to be in contact with a heat absorption part of the connector terminal that is separated in a direction opposite to the insertion direction from a terminal part that is connected to the mating connector terminal, or with an intermediate member that is in contact with the heat absorption part, in a contact direction that intersects with the insertion direction, and that absorbs heat from the heat absorption part when housed in the housing; Equipped with the heat sink component is in contact with a predetermined adjacent portion when accommodated in the housing, and dissipates heat absorbed from the heat absorption portion to the adjacent portion, the housing is provided with a heat-dissipating component accommodating chamber which is integrally formed with an outer wall of the housing, has a cylindrical shape extending in the contact direction so that one end side opens toward the outside and the other end side opens toward the heat-absorbing portion of the connector terminal, and the heat-dissipating component can be inserted and removed from the one end side; The heat-dissipating component is inserted into the heat-dissipating component accommodating chamber from the opening on one end side in the contact direction, and is held inside the heat-dissipating component accommodating chamber by a removable member, thereby being removably accommodated in the housing, and protrudes from the opening on the other end side to absorb heat from the heat-absorbed portion, and dissipates heat by contacting the inner surface of the heat-dissipating component accommodating chamber as the adjacent portion.

2. The heat-dissipating component housing chamber is formed in a cylindrical shape, 2. The charging inlet according to claim 1, wherein the heat-dissipating component is a cylindrical member that is accommodated in the heat-dissipating component accommodating chamber with its outer circumferential surface in contact with the cylindrical inner circumferential surface of the heat-dissipating component accommodating chamber over its entire circumference.

3. the connector terminal has an electric wire connection portion that is fastened by a bolt to an electric wire terminal provided at an end of an electric wire extending in the insertion direction inside the housing, The charging inlet according to claim 1, characterized in that the heat-dissipating part is fastened together with the wire terminal to the wire connection portion by the bolt while in contact with the wire terminal as the indirect member, so that the bolt is held inside the heat-dissipating part accommodating chamber as at least one of the specified members, and the wire connection portion indirectly absorbs heat via the wire terminal as the heat-absorbing part.

4. As the heat-dissipating parts, a conductive heat-dissipating part made of a conductive material and a non-conductive heat-dissipating part made of a non-conductive material are prepared, 2. The charging inlet according to claim 1, wherein the connector terminals are accommodated in the housing in a state switchable among a first state in which the conductive heat-dissipating component is installed, a second state in which the non-conductive heat-dissipating component is installed, and a third state in which the heat-dissipating component is not installed.

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