JP2022016032A - Charging device - Google Patents

Charging device Download PDF

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Publication number
JP2022016032A
JP2022016032A JP2020119290A JP2020119290A JP2022016032A JP 2022016032 A JP2022016032 A JP 2022016032A JP 2020119290 A JP2020119290 A JP 2020119290A JP 2020119290 A JP2020119290 A JP 2020119290A JP 2022016032 A JP2022016032 A JP 2022016032A
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Prior art keywords
heat transfer
connector
charging
heat
plate member
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Inventor
光 平島
Hikari Hirashima
勇作 木村
Yusaku Kimura
紀雄 原澤
Norio Harasawa
裕介 齋藤
Yusuke Saito
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Shindengen Electric Manufacturing Co Ltd
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Shindengen Electric Manufacturing Co Ltd
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Priority to JP2020119290A priority Critical patent/JP2022016032A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/12Electric charging stations

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  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

To enable rapid charging of a storage battery of a second vehicle with high power even if a time for charging the second vehicle after a charging connector is returned to a connector holder is short.SOLUTION: A charging device comprises: a charging connector 4 having a connector pin 42; and a connector holder 5 that holds the charging connector 4 when the charging connector 4 is not used for charging. The connector holder 5 includes: a connector reception portion 52 having a socket terminal 522 into which the connector pin 42 is inserted; and a heat transmission portion 54 that is provided being connected to the socket terminal 522 and transmits heat of the connector pin 42 inserted into the socket terminal 522 to a heat discharge portion 53.SELECTED DRAWING: Figure 3

Description

この発明は、充電装置に関する。 The present invention relates to a charging device.

特許文献1には、電気自動車などの車両の蓄電池に充電するための充電装置が開示されている。充電装置は、内部に充電用の回路部を設けた筐体の外側に引き出される充電ケーブルと、充電ケーブルの先端部に設けられて車両に接続するための充電コネクタと、を備える。充電装置には、短時間で車両の蓄電池に急速充電することが可能な充電装置もある。 Patent Document 1 discloses a charging device for charging a storage battery of a vehicle such as an electric vehicle. The charging device includes a charging cable drawn out to the outside of a housing provided with a circuit portion for charging inside, and a charging connector provided at the tip of the charging cable for connecting to a vehicle. The charging device also includes a charging device capable of quickly charging the storage battery of a vehicle in a short time.

特許第6505351号公報Japanese Patent No. 6505351

急速充電が可能な充電装置では、充電ケーブル及び充電コネクタのコネクタピンに大きな電流が流れるため、充電ケーブルやコネクタピンの温度が急上昇しやすい。このため、この種の充電装置では、充電ケーブルやコネクタピンの温度が規定温度以下である場合には高い電力で蓄電池に急速充電できるが、充電ケーブルやコネクタピンの温度が規定温度を越えると、充電ケーブルやコネクタピンを保護するために低い電力で蓄電池に充電する低速充電モードに切り替えられる。充電時間が決まっている場合に、その充電時間内において、低速充電モードで蓄電池に充電する時間が長くなると、蓄電池の充電量が不十分となることがある。 In a charging device capable of quick charging, a large current flows through the charging cable and the connector pin of the charging connector, so that the temperature of the charging cable and the connector pin tends to rise sharply. Therefore, with this type of charging device, if the temperature of the charging cable or connector pin is below the specified temperature, the storage battery can be quickly charged with high power, but if the temperature of the charging cable or connector pin exceeds the specified temperature, It can be switched to a slow charging mode that charges the battery with low power to protect the charging cable and connector pins. If the charging time is fixed and the storage battery is charged for a long time in the low-speed charging mode within the charging time, the charging amount of the storage battery may be insufficient.

このことから、同一の充電ケーブルを用いて、複数台の車両の蓄電池に対して連続して十分に急速充電できるようにするためには、一台目の車両の蓄電池の充電が完了した後、充電ケーブルやコネクタピンの温度が規定温度よりも十分に下回るまで待った後に、二台目の車両の蓄電池の充電を開始する必要がある。すなわち、複数台の車両の蓄電池に対して連続して急速充電するためには、複数台の車両の蓄電池を充電する間隔を長く確保する必要がある、という問題がある。 Therefore, in order to enable continuous and sufficient rapid charging of the storage batteries of a plurality of vehicles using the same charging cable, after the storage batteries of the first vehicle are fully charged, It is necessary to wait until the temperature of the charging cable or connector pin is sufficiently below the specified temperature before starting charging of the storage battery of the second vehicle. That is, in order to continuously and quickly charge the storage batteries of a plurality of vehicles, there is a problem that it is necessary to secure a long interval for charging the storage batteries of the plurality of vehicles.

本発明は、上述した事情に鑑みたものであって、充電コネクタをコネクタホルダに戻した後に二台目の車両を充電するまでの時間が短い場合であっても、二台目の車両の蓄電池に対して高い電力で急速充電することが可能な充電装置を提供することを目的とする。 The present invention has been made in view of the above circumstances, and even if the time from returning the charging connector to the connector holder to charging the second vehicle is short, the storage battery of the second vehicle It is an object of the present invention to provide a charging device capable of quick charging with high electric power.

本発明の一態様は、コネクタピンを有する充電コネクタと、前記充電コネクタが充電に利用されていないときに前記充電コネクタを保持するコネクタホルダと、を備え、前記コネクタホルダは、前記コネクタピンが挿入されるソケット端子を有するコネクタ受け部と、前記ソケット端子に接続されて設けられ、前記ソケット端子に挿入された前記コネクタピンの熱を放熱部に伝える伝熱部と、を備える充電装置である。 One aspect of the present invention includes a charging connector having a connector pin and a connector holder for holding the charging connector when the charging connector is not used for charging, and the connector holder is inserted with the connector pin. It is a charging device including a connector receiving portion having a socket terminal to be formed, and a heat transfer portion provided connected to the socket terminal and transmitting the heat of the connector pin inserted into the socket terminal to a heat radiating portion.

本発明に係る充電装置によれば、コネクタホルダのソケット端子が伝熱部を介して放熱部に接続されているため、充電コネクタをコネクタホルダに戻したときに、コネクタピン及びこれに接続された充電ケーブルの熱をソケット端子から伝熱部を介して放熱部に効率よく逃がすことができる。これにより、コネクタピン及び充電ケーブルの温度を規定温度以下まで効率よく低下させることができる。従って、充電コネクタをコネクタホルダに戻した後に二台目の車両を充電するまでの時間が短い場合であっても、二台目の車両の蓄電池に対して高い電力で急速充電することができる。 According to the charging device according to the present invention, since the socket terminal of the connector holder is connected to the heat radiating portion via the heat transfer portion, when the charging connector is returned to the connector holder, it is connected to the connector pin and the connector pin. The heat of the charging cable can be efficiently dissipated from the socket terminal to the heat radiating section via the heat transfer section. As a result, the temperature of the connector pin and the charging cable can be efficiently lowered to the specified temperature or lower. Therefore, even if the time from returning the charging connector to the connector holder to charging the second vehicle is short, the storage battery of the second vehicle can be quickly charged with high electric power.

本発明の第一実施形態に係る充電装置の外観を示す斜視図である。It is a perspective view which shows the appearance of the charging device which concerns on 1st Embodiment of this invention. 上記充電装置のコネクタホルダを、そのケースの左側の側壁部を透過した状態で示す斜視図である。It is a perspective view which shows the connector holder of the said charging device in a state which penetrates through the side wall part on the left side of the case. 図2のIII-IIIの位置での上記コネクタホルダの断面、及び、充電コネクタの先端部の断面を示す断面図である。2 is a cross-sectional view showing a cross section of the connector holder at the position of III-III in FIG. 2 and a cross section of a tip portion of the charging connector. 図3のIV-IVの位置での上記コネクタホルダの断面図である。It is sectional drawing of the said connector holder at the position IV-IV of FIG. 本発明の第二実施形態に係る充電装置のコネクタホルダを、そのケースの左側の側壁部を透過した状態で示す斜視図である。It is a perspective view which shows the connector holder of the charging device which concerns on 2nd Embodiment of this invention in the state which penetrates the side wall part on the left side of the case. 図5のVI-VIの位置での上記コネクタホルダの断面、及び、充電コネクタの断面を示す図である。It is a figure which shows the cross section of the said connector holder, and the cross section of a charging connector at the position of VI-VI of FIG.

〔第一実施形態〕
以下、図1~図4を参照して本発明の第一実施形態について説明する。本実施形態では、説明の便宜上、図1等に示す上下、左右及び前後の矢印に示す方向を、上下方向、左右方向及び前後方向と定義して構成要素の位置や向き等を説明する。図1に示すように、充電装置1は、電気自動車などの車両の蓄電池に充電するものであり、筐体2と、充電ケーブル3と、充電コネクタ4と、コネクタホルダ5とを備える。
[First Embodiment]
Hereinafter, the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. In the present embodiment, for convenience of explanation, the directions indicated by the up / down, left / right, and front / back arrows shown in FIG. 1 and the like are defined as the up / down direction, the left / right direction, and the front / back direction, and the positions and orientations of the components will be described. As shown in FIG. 1, the charging device 1 charges a storage battery of a vehicle such as an electric vehicle, and includes a housing 2, a charging cable 3, a charging connector 4, and a connector holder 5.

筐体2は矩形箱状に形成され、筐体2の内部に充電用の回路部(不図示)が設けられている。筐体2の前面21には、充電の状態等の各種状態を表示する表示パネル211などが設けられている。充電ケーブル3は、筐体2内部の回路部に電気的に接続され、筐体2の側面22から外側に延びている。充電ケーブル3は可撓性を有する。充電コネクタ4は、充電ケーブル3の先端に設けられている。充電コネクタ4は、樹脂製のコネクタ本体と、コネクタ本体の先端側に形成された円筒状の接続部41(図3参照)と、接続部41の内側に位置して充電ケーブル3と電気的に接続されるコネクタピン42(図3参照)と、コネクタ本体の基端側に形成されたグリップ部と、を有する。充電コネクタ4のグリップ部の基端部側に充電ケーブル3が接続される。接続部41の軸線とコネクタピン42の軸線とは互いに平行している。図3では、コネクタピン42が一つだけ図示されているが、コネクタピン42は左右方向(図3において紙面に直交する方向)に間隔をあけて二つ並んでいる。 The housing 2 is formed in a rectangular box shape, and a charging circuit unit (not shown) is provided inside the housing 2. A display panel 211 or the like for displaying various states such as a charging state is provided on the front surface 21 of the housing 2. The charging cable 3 is electrically connected to the circuit portion inside the housing 2 and extends outward from the side surface 22 of the housing 2. The charging cable 3 has flexibility. The charging connector 4 is provided at the tip of the charging cable 3. The charging connector 4 is electrically located inside the resin connector main body, the cylindrical connecting portion 41 (see FIG. 3) formed on the tip side of the connector main body, and the charging cable 3 and electrically. It has a connector pin 42 to be connected (see FIG. 3) and a grip portion formed on the base end side of the connector body. The charging cable 3 is connected to the base end side of the grip portion of the charging connector 4. The axis of the connecting portion 41 and the axis of the connector pin 42 are parallel to each other. In FIG. 3, only one connector pin 42 is shown, but two connector pins 42 are arranged side by side at intervals in the left-right direction (direction orthogonal to the paper surface in FIG. 3).

充電装置1では、充電コネクタ4を車両のインレット(不図示)に差し込むことで、車両の蓄電池に充電することができる。充電装置1では、充電ケーブル3や充電コネクタ4のコネクタピン42の温度が規定温度以下である場合には高い電力で車両の蓄電池に急速充電し、充電ケーブル3やコネクタピン42の温度が規定温度を越えている場合には低い電力で車両の蓄電池に充電する。 In the charging device 1, the storage battery of the vehicle can be charged by inserting the charging connector 4 into an inlet (not shown) of the vehicle. In the charging device 1, when the temperature of the connector pin 42 of the charging cable 3 or the charging connector 4 is equal to or lower than the specified temperature, the storage battery of the vehicle is quickly charged with high power, and the temperature of the charging cable 3 or the connector pin 42 is the specified temperature. If it exceeds, the vehicle's storage battery is charged with low power.

コネクタホルダ5は、筐体2の側面22の前端側に設けられる。充電コネクタ4が車両のインレットから取り外されて車両の充電に利用されていないときに、当該充電コネクタ4がコネクタホルダ5に保持される。充電コネクタ4をコネクタホルダ5に保持するため充電コネクタ4が挿入されるコネクタホルダ5の後述するケース51の前側開口5111は、筐体2の前面21側に向いている。 The connector holder 5 is provided on the front end side of the side surface 22 of the housing 2. When the charging connector 4 is removed from the vehicle inlet and is not used for charging the vehicle, the charging connector 4 is held by the connector holder 5. The front opening 5111 of the case 51, which will be described later, of the connector holder 5 into which the charging connector 4 is inserted to hold the charging connector 4 in the connector holder 5 faces the front surface 21 side of the housing 2.

図2及び図3に示すように、コネクタホルダ5は、ケース51と、コネクタ受け部52と、放熱部53と、伝熱部54とを備える。ケース51は、平板部材に曲げ加工を施して前壁部511、後壁部512、上壁部513、下壁部514及び左右の側壁部515を有する矩形箱状である。前壁部511は、上壁部513の前端部から前方斜め下方に折り曲げられて延び、その前端部から下方に折り曲げられて延びている。前壁部511の下端部と下壁部514の前端部、更に左右の側壁部515の前端部とによって、前後方向に貫通する矩形状の前側開口5111が形成されている。後壁部512には、後壁部512の前後面内において、前後方向に貫通する矩形状の後側開口5121が形成されている。 As shown in FIGS. 2 and 3, the connector holder 5 includes a case 51, a connector receiving portion 52, a heat radiating portion 53, and a heat transfer portion 54. The case 51 has a rectangular box shape having a front wall portion 511, a rear wall portion 512, an upper wall portion 513, a lower wall portion 514, and left and right side wall portions 515 by bending a flat plate member. The front wall portion 511 is bent forward and obliquely downward from the front end portion of the upper wall portion 513, and is bent downward and extends from the front end portion thereof. A rectangular front opening 5111 penetrating in the front-rear direction is formed by the lower end portion of the front wall portion 511, the front end portion of the lower wall portion 514, and the front end portions of the left and right side wall portions 515. The rear wall portion 512 is formed with a rectangular rear opening 5121 penetrating in the front-rear direction in the front-rear surface of the rear wall portion 512.

ケース51の内部には、コネクタ受け部52を固定するための取付部材516及び支持部材517が設けられている。取付部材516は、平板部材に曲げ加工を施して形成され、互いに直交する方向に延びる第一平板部5161及び第二平板部5162を有する。第一平板部5161は、ケース51の内面である上壁部513の下面に重ねられ、左右方向に並ぶ二つのネジ101によって上壁部513に固定されている。第二平板部5162は、第一平板部5161に対して直角に折り曲げられ、第一平板部5161の前端から下方に延びている。第二平板部5162の板厚方向は、前後方向に一致している。第二平板部5162は、前壁部511と後壁部512との間に位置する。取付部材516の左右方向の寸法は、ケース51内部の左右方向の寸法とほぼ等しく、取付部材516の左右端部がそれぞれ左右の側壁部515の内面に当接した状態で設けられる。 Inside the case 51, a mounting member 516 and a support member 517 for fixing the connector receiving portion 52 are provided. The mounting member 516 is formed by bending a flat plate member, and has a first flat plate portion 5161 and a second flat plate portion 5162 extending in directions orthogonal to each other. The first flat plate portion 5161 is overlapped with the lower surface of the upper wall portion 513 which is the inner surface of the case 51, and is fixed to the upper wall portion 513 by two screws 101 arranged in the left-right direction. The second flat plate portion 5162 is bent at a right angle to the first flat plate portion 5161 and extends downward from the front end of the first flat plate portion 5161. The plate thickness direction of the second flat plate portion 5162 coincides with the front-rear direction. The second flat plate portion 5162 is located between the front wall portion 511 and the rear wall portion 512. The left-right dimension of the mounting member 516 is substantially equal to the left-right dimension inside the case 51, and the left and right end portions of the mounting member 516 are provided in a state of being in contact with the inner surfaces of the left and right side wall portions 515, respectively.

支持部材517は、平板部材に曲げ加工を施して形成され、上から順番に並ぶ第一取付板部5171、支持板部5172、延長板部5173、カバー板部5174及び第二取付板部5175を有する。第一取付板部5171は、取付部材516の第二平板部5162に重ねられ、左右方向に並ぶ二つのネジ102によって第二平板部5162に固定され、第二平板部5162と同様に下方に延びている。支持板部5172は、第一取付板部5171の下端部から前方斜め下方に折り曲げられて延びている。支持板部5172の前面は、ケース51の前側開口5111に対して当該前面の上部が後方側に傾いた傾斜面になっている。支持板部5172には、その板厚方向に貫通する挿通孔5177が形成されている。なお、支持板部5172は、例えば第一取付板部5171に対して折り曲げられず、第一取付板部5171と同様に下方に延びてもよい。 The support member 517 is formed by bending a flat plate member, and has a first mounting plate portion 5171, a support plate portion 5172, an extension plate portion 5173, a cover plate portion 5174, and a second mounting plate portion 5175 arranged in order from the top. Have. The first mounting plate portion 5171 is overlapped with the second flat plate portion 5162 of the mounting member 516, fixed to the second flat plate portion 5162 by two screws 102 arranged in the left-right direction, and extends downward in the same manner as the second flat plate portion 5162. ing. The support plate portion 5172 extends diagonally forward and downward from the lower end portion of the first mounting plate portion 5171. The front surface of the support plate portion 5172 has an inclined surface in which the upper portion of the front surface is inclined to the rear side with respect to the front opening 5111 of the case 51. The support plate portion 5172 is formed with an insertion hole 5177 that penetrates in the plate thickness direction. The support plate portion 5172 may not be bent with respect to the first mounting plate portion 5171, for example, and may extend downward in the same manner as the first mounting plate portion 5171.

延長板部5173は、支持板部5172の下端部から前方に折り曲げられて延びている。カバー板部5174は、延長板部5173の前端部から下方に折り曲げられて延び、その下端部から後方斜め下方に折り曲げられて延びている。第二取付板部5175は、カバー板部5174の下端部から後方に折り曲げられて延びている。第二取付板部5175は、ケース51の内面である下壁部514の上面に重ねられ、左右方向に並ぶ二つのネジ103によって下壁部514に固定されている。支持部材517の左右方向の寸法は、ケース51の内部の左右方向の寸法とほぼ等しく、支持部材517の左右端部がそれぞれ左右の側壁部515の内側面に当接した状態で設けられる。このように設けられる支持部材517及び取付部材516により、ケース51の内部の空間は、前壁部511側の第一空間S1と後壁部512側の第二空間S2とに区画されている。 The extension plate portion 5173 extends forward by being bent forward from the lower end portion of the support plate portion 5172. The cover plate portion 5174 is bent downward and extends from the front end portion of the extension plate portion 5173, and is bent and extends diagonally backward and downward from the lower end portion thereof. The second mounting plate portion 5175 is bent rearward and extends from the lower end portion of the cover plate portion 5174. The second mounting plate portion 5175 is overlapped with the upper surface of the lower wall portion 514 which is the inner surface of the case 51, and is fixed to the lower wall portion 514 by two screws 103 arranged in the left-right direction. The left-right dimension of the support member 517 is substantially equal to the left-right dimension inside the case 51, and the support member 517 is provided in a state where the left and right end portions are in contact with the inner side surfaces of the left and right side wall portions 515, respectively. The space inside the case 51 is divided into a first space S1 on the front wall portion 511 side and a second space S2 on the rear wall portion 512 side by the support member 517 and the mounting member 516 provided in this way.

コネクタ受け部52は、受け部本体521と、二つのソケット端子522とを備える。受け部本体521は、電気的な絶縁材料により円筒状に形成されている。受け部本体521の外周部には、受け部本体521の径方向外側に張り出す平板状の鍔部5212が設けられている。受け部本体521の内径寸法は、充電コネクタ4の接続部41の外径寸法に対して同等あるいは若干大きくなっており、受け部本体521内に充電コネクタ4の接続部41を挿入可能になっている。充電コネクタ4の接続部41が受け部本体521内に挿入されることにより、コネクタ受け部52は充電コネクタ4を保持することが可能になっている。 The connector receiving portion 52 includes a receiving portion main body 521 and two socket terminals 522. The receiving portion main body 521 is formed in a cylindrical shape by an electrically insulating material. A flat plate-shaped flange portion 5212 is provided on the outer peripheral portion of the receiving portion main body 521 so as to project outward in the radial direction of the receiving portion main body 521. The inner diameter of the receiving portion main body 521 is equal to or slightly larger than the outer diameter dimension of the connecting portion 41 of the charging connector 4, and the connecting portion 41 of the charging connector 4 can be inserted into the receiving portion main body 521. There is. By inserting the connecting portion 41 of the charging connector 4 into the receiving portion main body 521, the connector receiving portion 52 can hold the charging connector 4.

受け部本体521の内部には、二つの円筒状の端子収容部5211が左右方向に並んで設けられている。二つの端子収容部5211はそれぞれ、受け部本体521の底壁部(後壁部)から後方に突出するように設けられている。二つの端子収容部5211の内部にそれぞれソケット端子522が挿入されて設けられる。 Inside the receiving portion main body 521, two cylindrical terminal accommodating portions 5211 are provided side by side in the left-right direction. Each of the two terminal accommodating portions 5211 is provided so as to project rearward from the bottom wall portion (rear wall portion) of the receiving portion main body 521. A socket terminal 522 is inserted and provided inside each of the two terminal accommodating portions 5211.

二つのソケット端子522はそれぞれ、導電性を有する雌型の端子金具である。ソケット端子522は、充電コネクタ4のコネクタピン42を挿入可能な円筒状のピン接続部5221と、後述する伝熱線542を挿入可能な円筒状の伝熱線接続部5222とを有する。ソケット端子522は、ピン接続部5221と伝熱線接続部5222とが同軸方向に繋がった形状になっている。ソケット端子522は、受け部本体521の充電コネクタ4が挿入される開口部側にピン接続部5221が配置される向きで、端子収容部5211内に設けられる。受け部本体521内に充電コネクタ4が挿入されると、コネクタピン42が端子収容部5211内のピン接続部5221に挿入されるようになっている。ピン接続部5221にコネクタピン42が挿入されると、ピン接続部5221の内周面とコネクタピン42の外周面とが接触するように、ピン接続部5221及びコネクタピン42の各寸法が構成されている。伝熱線接続部5222には後述する伝熱線542が挿入され、伝熱線接続部5222をかしめて当該伝熱線542に圧着させるようになっている。 Each of the two socket terminals 522 is a female terminal fitting having conductivity. The socket terminal 522 has a cylindrical pin connection portion 5221 into which the connector pin 42 of the charging connector 4 can be inserted, and a cylindrical heat transfer wire connection portion 5222 into which the heat transfer wire 542 described later can be inserted. The socket terminal 522 has a shape in which the pin connection portion 5221 and the heat transfer wire connection portion 5222 are connected in the coaxial direction. The socket terminal 522 is provided in the terminal accommodating portion 5211 so that the pin connection portion 5221 is arranged on the opening side where the charging connector 4 of the receiving portion main body 521 is inserted. When the charging connector 4 is inserted into the receiving portion main body 521, the connector pin 42 is inserted into the pin connecting portion 5221 in the terminal accommodating portion 5211. When the connector pin 42 is inserted into the pin connection portion 5221, the dimensions of the pin connection portion 5221 and the connector pin 42 are configured so that the inner peripheral surface of the pin connection portion 5221 and the outer peripheral surface of the connector pin 42 come into contact with each other. ing. A heat transfer wire 542, which will be described later, is inserted into the heat transfer wire connection portion 5222, and the heat transfer wire connection portion 5222 is crimped and crimped to the heat transfer wire 542.

コネクタ受け部52は、支持部材517の支持板部5172の挿通孔5177に前方側から受け部本体521を挿入し、鍔部5212を支持板部5172の前面に重ねて不図示のボルト及びナットで固定することで、支持板部5172に取り付けられて支持される。コネクタ受け部52を支持板部5172に取り付けた状態において、受け部本体521の充電コネクタ4が挿入される開口部等が、ケース51の前側開口5111を通してケース51の外側に露出する。コネクタ受け部52を支持板部5172に取り付けた状態において、二つの端子収容部5211の後端部が、ケース51の後側開口5121に対向するように位置する。 The connector receiving portion 52 inserts the receiving portion main body 521 from the front side into the insertion hole 5177 of the support plate portion 5172 of the support member 517, superimposes the flange portion 5212 on the front surface of the support plate portion 5172, and uses bolts and nuts (not shown). By fixing, it is attached to and supported by the support plate portion 5172. With the connector receiving portion 52 attached to the support plate portion 5172, the opening or the like into which the charging connector 4 of the receiving portion main body 521 is inserted is exposed to the outside of the case 51 through the front opening 5111 of the case 51. With the connector receiving portion 52 attached to the support plate portion 5172, the rear end portions of the two terminal accommodating portions 5211 are positioned so as to face the rear opening 5121 of the case 51.

図2~図4に示すように、放熱部53は、例えばアルミニウム等の熱伝導率の高い材料からなり、板状のベース部531と、ベース部531の後面に並設された複数の放熱フィン532とを備える空冷ヒートシンクである。ベース部531は、ケース51の後壁部512とほぼ同じ大きさの矩形板状に形成されている。放熱部53は、ベース部531の前面を後壁部512の後面に面接触させ、ベース部531によって後壁部512の後側開口5121をケース51の外側から塞ぐように配置される。そして、放熱部53は、ベース部531の四隅において四つのネジ104によってベース部531を後壁部512に固定することでケース51に取り付けられる。放熱部53をケース51に取り付けた状態において、ベース部531の前面の一部領域は後壁部512の後側開口5121を通してケース51の内側(第二空間S2)に露出する。 As shown in FIGS. 2 to 4, the heat radiating portion 53 is made of a material having high thermal conductivity such as aluminum, and has a plate-shaped base portion 531 and a plurality of heat radiating fins arranged side by side on the rear surface of the base portion 531. It is an air-cooled heat sink provided with 532. The base portion 531 is formed in the shape of a rectangular plate having substantially the same size as the rear wall portion 512 of the case 51. The heat radiating portion 53 is arranged so that the front surface of the base portion 531 is brought into surface contact with the rear surface of the rear wall portion 512, and the rear opening 5121 of the rear wall portion 512 is closed by the base portion 531 from the outside of the case 51. Then, the heat radiating portion 53 is attached to the case 51 by fixing the base portion 531 to the rear wall portion 512 with four screws 104 at the four corners of the base portion 531. When the heat radiating portion 53 is attached to the case 51, a part of the front surface of the base portion 531 is exposed to the inside of the case 51 (second space S2) through the rear opening 5121 of the rear wall portion 512.

伝熱部54は、伝熱板部材541と、二本の伝熱線542(第一伝熱部材)と、押さえ部材543と、二つの圧着端子544(第二伝熱部材)と、二つの伝熱ブロック545(第二伝熱部材)とを備える。伝熱板部材541は、例えばアルミニウム等の熱伝導率の高い材料からなり、矩形平板状に形成されている。伝熱板部材541は、ケース51の後壁部512の後側開口5121を通してケース51の内側に露出する放熱部53のベース部531の前面に面接触した状態で配置される。そして、伝熱板部材541は、複数のネジ105(図3参照)によって放熱部53のベース部531に固定される。伝熱板部材541の板厚はケース51の後壁部512の板厚より厚くなっており、放熱部53に固定された伝熱板部材541がケース51内にせり出すようになっている。伝熱板部材541は、平板部材をクランク状に曲げ加工されて形成された固定部材106を介してケース51にも固定されている。固定部材106は、ケース51の後壁部512の前面(内面)に重なるように配置されて左右二つの皿ネジ107によって固定される。その固定部材106の後面に伝熱板部材541の前面が重なるように伝熱板部材541が配置されて左右二つの皿ネジ107によって固定される。 The heat transfer unit 54 includes a heat transfer plate member 541, two heat transfer wires 542 (first heat transfer member), a holding member 543, two crimp terminals 544 (second heat transfer member), and two heat transfer members. It is provided with a heat block 545 (second heat transfer member). The heat transfer plate member 541 is made of a material having high thermal conductivity, such as aluminum, and is formed in a rectangular flat plate shape. The heat transfer plate member 541 is arranged in a state of being in surface contact with the front surface of the base portion 531 of the heat radiation portion 53 exposed to the inside of the case 51 through the rear opening 5121 of the rear wall portion 512 of the case 51. Then, the heat transfer plate member 541 is fixed to the base portion 531 of the heat dissipation portion 53 by a plurality of screws 105 (see FIG. 3). The plate thickness of the heat transfer plate member 541 is thicker than the plate thickness of the rear wall portion 512 of the case 51, and the heat transfer plate member 541 fixed to the heat dissipation portion 53 protrudes into the case 51. The heat transfer plate member 541 is also fixed to the case 51 via a fixing member 106 formed by bending a flat plate member into a crank shape. The fixing member 106 is arranged so as to overlap the front surface (inner surface) of the rear wall portion 512 of the case 51, and is fixed by two left and right countersunk screws 107. The heat transfer plate member 541 is arranged so that the front surface of the heat transfer plate member 541 overlaps the rear surface of the fixing member 106, and is fixed by two left and right countersunk screws 107.

二本の伝熱線542はそれぞれ、複数本の金属細線5421(例えば銅製の細線)をより合わせた断面円形状のリッツ線である。二本の伝熱線542の一端部側はそれぞれ、ソケット端子522の伝熱線接続部5222に挿入されて圧着固定される。二本の伝熱線542の他端部側はそれぞれ、ソケット端子522から端子収容部5211の外側に出て後方に延び、そこから上方に折り曲げられて伝熱板部材541の前面に沿うように上方に延びる。それら二本の伝熱線542の他端部側はそれぞれ、伝熱線542を構成する複数本の金属細線5421をほぐして左右方向に広げた状態で伝熱板部材541の前面に接触させて配置される(図4参照)。そして、二本の伝熱線542の他端部側は、押さえ部材543によって、伝熱板部材541の前面に押し付けられる。このように、二本の伝熱線542はそれぞれ、二つのソケット端子522と伝熱板部材541の前面とに跨って接続される。 Each of the two heat transfer wires 542 is a litz wire having a circular cross section in which a plurality of fine metal wires 5421 (for example, thin copper wires) are twisted together. One end side of each of the two heat transfer wires 542 is inserted into the heat transfer wire connection portion 5222 of the socket terminal 522 and fixed by crimping. The other ends of the two heat transfer wires 542 each go out from the socket terminal 522 to the outside of the terminal accommodating portion 5211 and extend rearward, and are bent upward from there and upward along the front surface of the heat transfer plate member 541. Extend to. The other ends of the two heat transfer wires 542 are arranged so as to be in contact with the front surface of the heat transfer plate member 541 in a state where the plurality of thin metal wires 5421 constituting the heat transfer wire 542 are loosened and spread in the left-right direction. (See Fig. 4). The other end side of the two heat transfer wires 542 is pressed against the front surface of the heat transfer plate member 541 by the pressing member 543. In this way, the two heat transfer wires 542 are connected so as to straddle the two socket terminals 522 and the front surface of the heat transfer plate member 541, respectively.

押さえ部材543は、ポリカーボネートなどのように電気的な絶縁性を有する材料により矩形板状に形成されている。押さえ部材543の後面には、上下方向に延びる矩形凹状の二つの挿入溝5431が左右方向に間隔をあけて並んで形成されている。二つの挿入溝5431はそれぞれ、押さえ部材543の上下方向の両側に開口している。二つの挿入溝5431内にはそれぞれ、伝熱板部材541の前面に沿って配置された二本の伝熱線542の他端部側が挿入可能になっている。押さえ部材543は、二つの挿入溝5431内に二本の伝熱線542の他端部側を挿入した状態で、伝熱板部材541の前面に複数の皿ネジ108及びナット109によって固定される。このように押さえ部材543が固定されると、伝熱線542の他端部側において複数本の金属細線5421が挿入溝5431内で左右方向に広がった状態で押さえ部材543によって伝熱板部材541の前面に押し付けられる。左右方向に広がった複数本の金属細線5421は、挿入溝5431の底面及び左右両側面にも押し付けられた状態となる。このとき、伝熱線542の他端部は、押さえ部材543の挿入溝5431から上方に突出せずに挿入溝5431内に配置される。 The holding member 543 is formed in the shape of a rectangular plate by a material having electrical insulating properties such as polycarbonate. On the rear surface of the pressing member 543, two rectangular concave insertion grooves 5431 extending in the vertical direction are formed side by side at intervals in the horizontal direction. The two insertion grooves 5431 are open on both sides of the holding member 543 in the vertical direction, respectively. The other end side of the two heat transfer wires 542 arranged along the front surface of the heat transfer plate member 541 can be inserted into each of the two insertion grooves 5431. The pressing member 543 is fixed to the front surface of the heat transfer plate member 541 by a plurality of countersunk screws 108 and nuts 109 with the other end side of the two heat transfer wires 542 inserted into the two insertion grooves 5431. When the pressing member 543 is fixed in this way, the heat transfer plate member 541 is provided with the pressing member 543 in a state where a plurality of thin metal wires 5421 are spread in the left-right direction in the insertion groove 5431 on the other end side of the heat transfer wire 542. Pressed against the front. The plurality of thin metal wires 5421 spread in the left-right direction are pressed against the bottom surface of the insertion groove 5431 and both the left and right side surfaces. At this time, the other end of the heat transfer wire 542 is arranged in the insertion groove 5431 without protruding upward from the insertion groove 5431 of the holding member 543.

伝熱線542の他端部側及び押さえ部材543と伝熱板部材541の前面との間には、電気的な絶縁性を有する絶縁シート110が設けられる。絶縁シート110は、伝熱線542と伝熱板部材541とを電気的に絶縁する。絶縁シート110は、弾力性を有しており、熱伝導率の高い材料によって構成される。絶縁シート110が伝熱線542の他端部側と伝熱板部材541の前面との間に挟まれることで、伝熱線542の他端部側と伝熱板部材541の前面との間に生じる微妙な隙間を当該絶縁シート110により埋めて、伝熱線542の他端部側と伝熱板部材541の前面との密着度を高めることができる。これにより、伝熱線542の他端部側から伝熱板部材541に効率よく熱を伝えることができる。 An insulating sheet 110 having electrical insulation is provided between the other end side of the heat transfer wire 542 and between the pressing member 543 and the front surface of the heat transfer plate member 541. The insulating sheet 110 electrically insulates the heat transfer wire 542 and the heat transfer plate member 541. The insulating sheet 110 has elasticity and is made of a material having high thermal conductivity. The insulating sheet 110 is sandwiched between the other end side of the heat transfer wire 542 and the front surface of the heat transfer plate member 541, so that it is generated between the other end side of the heat transfer wire 542 and the front surface of the heat transfer plate member 541. The delicate gap can be filled with the insulating sheet 110 to increase the degree of adhesion between the other end side of the heat transfer wire 542 and the front surface of the heat transfer plate member 541. As a result, heat can be efficiently transferred from the other end side of the heat transfer wire 542 to the heat transfer plate member 541.

二つの圧着端子544はそれぞれ、導電性を有する材料からなり、圧着筒部5441と、接続板部5442とを備える。圧着筒部5441は、伝熱線542が通る筒状に形成されている。圧着筒部5441の内側に伝熱線542を通した状態で圧着筒部5441をその径方向から潰すことで、圧着筒部5441を伝熱線542に固定することができる。接続板部5442は、圧着筒部5441の軸方向の端部から該軸方向に対して斜めに延びる平板状に形成されている。 Each of the two crimp terminals 544 is made of a conductive material and includes a crimp cylinder portion 5441 and a connection plate portion 5442. The crimping cylinder portion 5441 is formed in a cylindrical shape through which the heat transfer wire 542 passes. By crushing the crimping cylinder portion 5441 from the radial direction while passing the heat transfer wire 542 inside the crimping cylinder portion 5441, the crimping cylinder portion 5441 can be fixed to the heat transfer wire 542. The connection plate portion 5442 is formed in a flat plate shape extending diagonally with respect to the axial direction from the axial end portion of the crimping cylinder portion 5441.

二つの圧着端子544(圧着筒部5441)はそれぞれ、ソケット端子522に固定される伝熱線542の一端部側と、伝熱板部材541に押し付けられる伝熱線542の他端部側との間に位置する伝熱線542の中途部に固定される。二つの圧着端子544を二本の伝熱線542に固定した状態において、二つの圧着端子544の接続板部5442はそれぞれ、圧着筒部5441から伝熱板部材541の前面に沿うように下方に延びる。二つの接続板部5442はそれぞれ、接続板部5442の板厚方向が前後方向に向くようにして伝熱板部材541の前面に対して前方に間隔をあけて位置する。二つの接続板部5442はそれぞれ、二つの伝熱ブロック545を介して伝熱板部材541の前面に接続される。二本の伝熱線542にそれぞれ固定された二つの圧着端子544は、左右方向に間隔をあけて並んで配置される。 The two crimp terminals 544 (crimp cylinder portion 5441) are located between one end side of the heat transfer wire 542 fixed to the socket terminal 522 and the other end side of the heat transfer wire 542 pressed against the heat transfer plate member 541, respectively. It is fixed in the middle of the heat transfer wire 542 located. With the two crimp terminals 544 fixed to the two heat transfer wires 542, the connection plate portions 5442 of the two crimp terminals 544 each extend downward from the crimp cylinder portion 5441 along the front surface of the heat transfer plate member 541. .. Each of the two connecting plate portions 5442 is positioned forward with respect to the front surface of the heat transfer plate member 541 so that the plate thickness direction of the connecting plate portion 5442 faces in the front-rear direction. The two connecting plate portions 5442 are each connected to the front surface of the heat transfer plate member 541 via the two heat transfer blocks 545. The two crimp terminals 544 fixed to the two heat transfer wires 542, respectively, are arranged side by side at intervals in the left-right direction.

二つの伝熱ブロック545はそれぞれ、導電性を有する材料からなり、矩形ブロック状に形成されている。二つの伝熱ブロック545は、伝熱板部材541の前面に面接触し、且つ左右方向に間隔をあけて並んだ状態で配置される。それら二つの伝熱ブロック545の前面にはそれぞれ、伝熱線542に固定された圧着端子544の接続板部5442が面接触した状態で二つの皿ネジ111及びナット112によって固定される。二つの伝熱ブロック545はそれぞれ、上記のように圧着端子544が固定された後に、二つの皿ネジ113及びナット114によって伝熱板部材541の前面に固定される。二つの伝熱ブロック545と伝熱板部材541の前面との間には、これらを電気的に絶縁する上記絶縁シート110が設けられる。伝熱ブロック545の下端は、絶縁シート110の下端より僅かに上側に位置している。換言すると、絶縁シート110は、伝熱ブロック545より下側に僅かに突出している。伝熱ブロック545と皿ネジ113及びナット114との間には絶縁ブッシュ115が設けられる(図2参照)。これら絶縁シート110及び絶縁ブッシュ115により、伝熱ブロック545と伝熱板部材541とを電気的に絶縁するようになっている。 Each of the two heat transfer blocks 545 is made of a conductive material and is formed in a rectangular block shape. The two heat transfer blocks 545 are arranged in a state where they are in surface contact with the front surface of the heat transfer plate member 541 and are arranged side by side with an interval in the left-right direction. The connection plate portion 5442 of the crimp terminal 544 fixed to the heat transfer wire 542 is fixed to the front surface of each of the two heat transfer blocks 545 by two countersunk screws 111 and a nut 112 in a state of surface contact. Each of the two heat transfer blocks 545 is fixed to the front surface of the heat transfer plate member 541 by the two countersunk screws 113 and the nut 114 after the crimp terminal 544 is fixed as described above. The insulating sheet 110 that electrically insulates the two heat transfer blocks 545 and the front surface of the heat transfer plate member 541 is provided. The lower end of the heat transfer block 545 is located slightly above the lower end of the insulating sheet 110. In other words, the insulating sheet 110 slightly protrudes below the heat transfer block 545. An insulating bush 115 is provided between the heat transfer block 545, the countersunk screw 113, and the nut 114 (see FIG. 2). The heat transfer block 545 and the heat transfer plate member 541 are electrically insulated by the heat transfer sheet 110 and the heat transfer bush 115.

充電装置1では、充電コネクタ4をケース51の前側開口5111から挿入してコネクタ受け部52に差し込むと、充電コネクタ4の接続部41が受け部本体521内に挿入される。充電コネクタ4の接続部41が受け部本体521内に挿入されることで、充電コネクタ4がコネクタホルダ5に保持され、充電コネクタ4の二つのコネクタピン42がそれぞれ、コネクタホルダ5の二つのソケット端子522のピン接続部5221に挿入される。コネクタピン42がピン接続部5221に挿入されると、コネクタピン42の外周面がピン接続部5221の内周面に接触した状態となる。 In the charging device 1, when the charging connector 4 is inserted from the front opening 5111 of the case 51 and inserted into the connector receiving portion 52, the connecting portion 41 of the charging connector 4 is inserted into the receiving portion main body 521. By inserting the connection portion 41 of the charging connector 4 into the receiving portion main body 521, the charging connector 4 is held by the connector holder 5, and the two connector pins 42 of the charging connector 4 are respectively the two sockets of the connector holder 5. It is inserted into the pin connection portion 5221 of the terminal 522. When the connector pin 42 is inserted into the pin connection portion 5221, the outer peripheral surface of the connector pin 42 is in contact with the inner peripheral surface of the pin connection portion 5221.

充電装置1においては、車両の充電を行った後に、充電ケーブル3や充電コネクタ4の二つのコネクタピン42の温度が高くなった状態で、当該充電コネクタ4をコネクタホルダ5のコネクタ受け部52に差し込むと上記のような状態になるため、充電ケーブル3や二つのコネクタピン42の熱はそれぞれ、ソケット端子522のピン接続部5221から伝熱線接続部5222へと伝わり、伝熱線接続部5222から伝熱線542へと伝わる。伝熱線542へと伝わった熱は、押さえ部材543の挿入溝5431内で複数本の金属細線5421が左右方向に広がった状態となっている伝熱線542の他端部側から絶縁シート110、伝熱板部材541の順に経由して放熱部53に伝わる。さらに、伝熱線接続部5222から伝熱線542へと伝わった熱は、伝熱線542の中途部に固定された圧着端子544の圧着筒部5441から接続板部5442へと伝わり、接続板部5442から伝熱ブロック545、絶縁シート110、伝熱板部材541の順に経由して放熱部53に伝わる。このように、二つのコネクタピン42の熱はそれぞれ、二つの伝熱経路をたどって放熱部53に伝わり、放熱部53によって放散される。なお、伝熱経路としては、伝熱線542から圧着端子544を経由する経路の方が熱抵抗が小さいため、こちらの経路が主経路となり、押さえ部材543に固定されている伝熱線542の他端部側を経由する経路が補助的な経路となってもよい。 In the charging device 1, after charging the vehicle, the charging connector 4 is attached to the connector receiving portion 52 of the connector holder 5 in a state where the temperatures of the two connector pins 42 of the charging cable 3 and the charging connector 4 are high. Since the above state occurs when the cable is inserted, the heat of the charging cable 3 and the two connector pins 42 is transferred from the pin connection portion 5221 of the socket terminal 522 to the heat transfer wire connection portion 5222, respectively, and is transferred from the heat transfer wire connection portion 5222. It is transmitted to the heat ray 542. The heat transferred to the heat transfer wire 542 is transferred to the insulating sheet 110 from the other end side of the heat transfer wire 542 in which a plurality of thin metal wires 5421 are spread in the left-right direction in the insertion groove 5431 of the holding member 543. It is transmitted to the heat radiating unit 53 via the hot plate member 541 in this order. Further, the heat transferred from the heat transfer wire connection portion 5222 to the heat transfer wire 542 is transmitted from the crimp cylinder portion 5441 of the crimp terminal 544 fixed to the middle portion of the heat transfer wire 542 to the connection plate portion 5442, and from the connection plate portion 5442. The heat is transmitted to the heat radiating unit 53 via the heat transfer block 545, the insulating sheet 110, and the heat transfer plate member 541 in this order. In this way, the heat of the two connector pins 42 is transmitted to the heat radiating unit 53 along the two heat transfer paths, and is dissipated by the heat radiating unit 53. As the heat transfer path, the path from the heat transfer wire 542 to the crimp terminal 544 has a smaller thermal resistance, so this path becomes the main path and the other end of the heat transfer wire 542 fixed to the holding member 543. The route via the part side may be an auxiliary route.

以上説明したように、本実施形態の充電装置1によれば、コネクタホルダ5は、コネクタピン42が挿入されるソケット端子522を有するコネクタ受け部52と、ソケット端子522に接続されて設けられ、ソケット端子522に挿入されたコネクタピン42の熱を放熱部53に伝える伝熱部54とを備える。これにより、コネクタピン42がソケット端子522に挿入された状態では、コネクタピン42及びこれにつながる充電ケーブル3の熱を、ソケット端子522及び伝熱部54を介して放熱部53に伝えることができる。このため、コネクタピン42及び充電ケーブル3の熱を効率よく逃がして、コネクタピン42及び充電ケーブル3の温度を効率よく低下させることができる。すなわち、コネクタピン42及び充電ケーブル3の温度をより短い時間で規定温度よりも十分に下回らせることができる。従って、充電コネクタ4をコネクタホルダ5に戻した後に二台目の車両を充電するまでの時間が短い場合であっても、二台目の車両の蓄電池に対して高い電力で急速充電することができる。 As described above, according to the charging device 1 of the present embodiment, the connector holder 5 is provided by being connected to the connector receiving portion 52 having the socket terminal 522 into which the connector pin 42 is inserted and the socket terminal 522. It is provided with a heat transfer unit 54 that transfers the heat of the connector pin 42 inserted into the socket terminal 522 to the heat dissipation unit 53. As a result, when the connector pin 42 is inserted into the socket terminal 522, the heat of the connector pin 42 and the charging cable 3 connected to the connector pin 42 can be transferred to the heat radiating unit 53 via the socket terminal 522 and the heat transfer unit 54. .. Therefore, the heat of the connector pin 42 and the charging cable 3 can be efficiently dissipated, and the temperature of the connector pin 42 and the charging cable 3 can be efficiently lowered. That is, the temperature of the connector pin 42 and the charging cable 3 can be sufficiently lowered below the specified temperature in a shorter time. Therefore, even if the time required to charge the second vehicle after returning the charging connector 4 to the connector holder 5 is short, the storage battery of the second vehicle can be quickly charged with high electric power. can.

充電装置1では、伝熱部54は、放熱部53に面接触した状態で設けられる伝熱板部材541を有する。この伝熱板部材541により、ソケット端子522から伝熱板部材541に伝わった熱を、伝熱板部材541の板厚方向に直交する面方向(図2~図4において上下左右方向)に拡散した上で放熱部53に効率よく伝えることができる。従って、コネクタピン42及び充電ケーブル3の熱をさらに効率よく逃がして、コネクタピン42及び充電ケーブル3の温度をさらに効率よく低下させることができる。 In the charging device 1, the heat transfer unit 54 has a heat transfer plate member 541 provided in a state of being in surface contact with the heat radiation unit 53. By this heat transfer plate member 541, the heat transferred from the socket terminal 522 to the heat transfer plate member 541 is diffused in the plane direction (vertical and horizontal directions in FIGS. 2 to 4) orthogonal to the plate thickness direction of the heat transfer plate member 541. After that, it can be efficiently transmitted to the heat radiating unit 53. Therefore, the heat of the connector pin 42 and the charging cable 3 can be released more efficiently, and the temperature of the connector pin 42 and the charging cable 3 can be lowered more efficiently.

充電装置1では、伝熱部54は、コネクタピン42の熱を、ソケット端子522から複数本の金属細線5421が左右方向に広がった状態となっている伝熱線542の他端部側、絶縁シート110、伝熱板部材541の順に経由して放熱部53に伝える第一伝熱経路と、ソケット端子522から伝熱線542、伝熱線542の中途部に固定された圧着端子544、伝熱ブロック545、絶縁シート110、伝熱板部材541の順に経由して放熱部53に伝える第二伝熱経路とを有する。これにより、伝熱部54の二つの伝熱経路を放熱部53の互いに異なる部分に接続して、伝熱部54が接続される放熱部53の領域を拡大することができる。従って、コネクタピン42の熱を伝熱部54から放熱部53に効率よく伝えることができる。また、第一伝熱経路において、絶縁シート110を介して伝熱板部材541に接続される伝熱線542の他端部側が、複数本の金属細線5421を左右方向に広げた状態となっているため、絶縁シート110及び伝熱板部材541との接触面積を広くすることができ、これにより更に効率よく熱を伝えることができる。第二伝熱経路において、圧着端子544と絶縁シート110及び伝熱板部材541との間に伝熱ブロック545が設けられていることにより、圧着端子544から伝熱ブロック545に伝わった熱を、伝熱ブロック545の板厚方向に直交する面方向(図2~図4において上下左右方向)に拡散した上で放熱部53に効率よく伝えることができる。 In the charging device 1, the heat transfer unit 54 transfers the heat of the connector pin 42 to the other end side of the heat transfer wire 542 in which a plurality of fine metal wires 5421 are spread in the left-right direction from the socket terminal 522, an insulating sheet. The first heat transfer path transmitted to the heat dissipation unit 53 via 110 and the heat transfer plate member 541, the heat transfer wire 542 from the socket terminal 522, the crimp terminal 544 fixed in the middle of the heat transfer wire 542, and the heat transfer block 545. It has a second heat transfer path that is transmitted to the heat dissipation unit 53 via the insulating sheet 110 and the heat transfer plate member 541 in this order. As a result, the two heat transfer paths of the heat transfer unit 54 can be connected to different portions of the heat transfer unit 53, and the area of the heat radiation unit 53 to which the heat transfer unit 54 is connected can be expanded. Therefore, the heat of the connector pin 42 can be efficiently transferred from the heat transfer unit 54 to the heat dissipation unit 53. Further, in the first heat transfer path, the other end side of the heat transfer wire 542 connected to the heat transfer plate member 541 via the insulating sheet 110 is in a state in which a plurality of thin metal wires 5421 are spread in the left-right direction. Therefore, the contact area between the insulating sheet 110 and the heat transfer plate member 541 can be widened, whereby heat can be transferred more efficiently. In the second heat transfer path, the heat transfer block 545 is provided between the crimp terminal 544, the insulating sheet 110, and the heat transfer plate member 541, so that the heat transferred from the crimp terminal 544 to the heat transfer block 545 can be transferred. The heat transfer block 545 can be efficiently transmitted to the heat radiating unit 53 after being diffused in the plane direction (up, down, left and right directions in FIGS. 2 to 4) orthogonal to the plate thickness direction.

充電装置1では、伝熱部54は、ソケット端子522と伝熱板部材541とに跨って接続される伝熱線542(第一伝熱部材)と、伝熱線542の中途部と伝熱板部材541とに跨って接続される圧着端子544(第二伝熱部材)及び伝熱ブロック545(第二伝熱部材)とを有する。これにより、伝熱線542の中途部に圧着端子544を取り付けるだけで、二つの伝熱経路を簡単に構成することができる。 In the charging device 1, the heat transfer unit 54 includes a heat transfer wire 542 (first heat transfer member) connected across the socket terminal 522 and the heat transfer plate member 541, and an intermediate portion of the heat transfer wire 542 and a heat transfer plate member. It has a crimp terminal 544 (second heat transfer member) and a heat transfer block 545 (second heat transfer member) connected across the 541. As a result, two heat transfer paths can be easily configured by simply attaching the crimp terminal 544 to the middle portion of the heat transfer wire 542.

充電装置1では、コネクタホルダ5がコネクタ受け部52及び伝熱部54を収容するケース51を備え、放熱部53はケース51の外側に配置されている。これにより、コネクタ受け部52及び伝熱部54をケース51によって水分や塵埃から保護しながら、コネクタピン42の熱がケース51の内部において籠ることを抑制して、伝熱部54から放熱部53に伝わった熱をケース51の外側において効率よく放散することができる。 In the charging device 1, the connector holder 5 includes a case 51 that houses the connector receiving portion 52 and the heat transfer portion 54, and the heat radiating portion 53 is arranged outside the case 51. As a result, while the connector receiving portion 52 and the heat transfer portion 54 are protected from moisture and dust by the case 51, the heat of the connector pin 42 is suppressed from being trapped inside the case 51, and the heat transfer portion 54 to the heat transfer portion 53 are suppressed. The heat transferred to the case 51 can be efficiently dissipated on the outside of the case 51.

充電装置1では、二つのソケット端子522が互いに間隔をあけて配置され、二本の伝熱線542が互いに間隔をあけて配置され、二つの圧着端子544が互いに間隔をあけて配置され、二つの伝熱ブロック545が互いに間隔をあけて配置された上で、二つ伝熱ブロック545及び二本の伝熱線542と伝熱板部材541とが絶縁シート110や絶縁ブッシュ115によって電気的に絶縁されている。これにより、二つのソケット端子522にそれぞれ二つのコネクタピン42が挿入されても、二つのコネクタピン42の間で電気的に短絡することを抑制又は防止することができる。 In the charging device 1, the two socket terminals 522 are spaced apart from each other, the two heat transfer wires 542 are placed spaced apart from each other, and the two crimp terminals 544 are placed spaced apart from each other. After the heat transfer blocks 545 are arranged at intervals from each other, the two heat transfer blocks 545, the two heat transfer wires 542, and the heat transfer plate member 541 are electrically insulated by the insulating sheet 110 and the insulating bush 115. ing. As a result, even if two connector pins 42 are inserted into the two socket terminals 522, it is possible to suppress or prevent an electrical short circuit between the two connector pins 42.

〔第二実施形態〕
次に、図5及び図6を参照して本発明の第二実施形態について説明する。第二実施形態では、第一実施形態と同様の構成要素について同一符号を付す等して、その説明を省略する。
[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6. In the second embodiment, the same components as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

本実施形態の充電装置は、図5及び図6に示すコネクタホルダ5Cの他に、第一実施形態と同様の筐体2、充電ケーブル3及び充電コネクタ4(図1参照)を備える。コネクタホルダ5Cの構成は、後述する伝熱部54Cの構成を除いて、第一実施形態のコネクタホルダ5と同様である。伝熱部54Cは、伝熱板部材541と、二本の伝熱線542(第一伝熱部材)と、二つの第一圧着端子546(第一伝熱部材)と、二つの第二圧着端子547(第二伝熱部材)と、二つの伝熱ブロック548と、を備える。伝熱板部材541やこれをケース51の後壁部512の固定するための固定部材106は第一実施形態と同様である。 In addition to the connector holder 5C shown in FIGS. 5 and 6, the charging device of this embodiment includes a housing 2, a charging cable 3, and a charging connector 4 (see FIG. 1) similar to those of the first embodiment. The configuration of the connector holder 5C is the same as that of the connector holder 5 of the first embodiment, except for the configuration of the heat transfer unit 54C described later. The heat transfer unit 54C includes a heat transfer plate member 541, two heat transfer wires 542 (first heat transfer member), two first crimp terminals 546 (first heat transfer member), and two second crimp terminals. It includes 547 (second heat transfer member) and two heat transfer blocks 548. The heat transfer plate member 541 and the fixing member 106 for fixing the heat transfer plate member 541 to the rear wall portion 512 of the case 51 are the same as those in the first embodiment.

二本の伝熱線542はそれぞれ、第一実施形態と同様のリッツ線である。二本の伝熱線542の一端部側はそれぞれ、ソケット端子522の伝熱線接続部5222に挿入されて圧着固定される。二本の伝熱線542の他端部側はそれぞれ、ソケット端子522から端子収容部5211の外側に出て伝熱板部材541に向けて後方に延び、そこから折り曲げられて上方に延びる。そして、二本の伝熱線542の他端部側はそれぞれ、伝熱板部材541の前面に対して前方に間隔をあけて上方に延びた状態で配置される。それら二本の伝熱線542の他端部にはそれぞれ、第一圧着端子546が固定される。 Each of the two heat transfer wires 542 is a litz wire similar to that of the first embodiment. One end side of each of the two heat transfer wires 542 is inserted into the heat transfer wire connection portion 5222 of the socket terminal 522 and fixed by crimping. The other end sides of the two heat transfer wires 542 each go out from the socket terminal 522 to the outside of the terminal accommodating portion 5211 and extend rearward toward the heat transfer plate member 541, from which they are bent and extend upward. The other ends of the two heat transfer wires 542 are arranged so as to extend upward with a distance forward from the front surface of the heat transfer plate member 541, respectively. A first crimp terminal 546 is fixed to the other end of each of the two heat transfer wires 542.

二つの第一圧着端子546はそれぞれ、導電性を有する材料からなり、第一実施形態の圧着端子544と同様に圧着筒部5461及び接続板部5462を備える。圧着筒部5461は、伝熱線542が通る筒状に形成されている。圧着筒部5461内に伝熱線542の他端部側を挿入した状態で当該圧着筒部5461をその径方向から押し潰すことにより、圧着筒部5461を伝熱線542の他端部側に固定することができるようになっている。接続板部5462は、圧着筒部5461の軸方向の端部から該軸方向に延びる平板状に形成されている。二つの第一圧着端子546の圧着筒部5461はそれぞれ、上記のように二本の伝熱線542の他端部側に固定される。二つの第一圧着端子546をそれぞれ二本の伝熱線542に固定した状態において、第一圧着端子546の接続板部5462は、圧着筒部5461(伝熱線542の他端部側)から伝熱板部材541の前面に沿うように上方に延びる。接続板部5462は、接続板部5462の板厚方向が前後方向に向くようにして伝熱板部材541の前面に対して前方に間隔をあけて配置される。二つの接続板部5462はそれぞれ、伝熱ブロック548を介して伝熱板部材541に接続される。二本の伝熱線542にそれぞれ固定された二つの第一圧着端子546は、左右方向に間隔をあけて並んで配置される。 Each of the two first crimp terminals 546 is made of a conductive material and includes a crimp cylinder portion 5461 and a connection plate portion 5462 similar to the crimp terminal 544 of the first embodiment. The crimping cylinder portion 5461 is formed in a cylindrical shape through which the heat transfer wire 542 passes. By crushing the crimping cylinder 5461 from the radial direction with the other end side of the heat transfer wire 542 inserted in the crimping cylinder 5461, the crimping cylinder 5461 is fixed to the other end side of the heat transfer wire 542. You can do it. The connection plate portion 5462 is formed in a flat plate shape extending in the axial direction from the axial end portion of the crimping cylinder portion 5461. The crimping cylinder portion 5461 of each of the two first crimping terminals 546 is fixed to the other end side of the two heat transfer wires 542 as described above. With the two first crimp terminals 546 fixed to the two heat transfer wires 542, the connection plate portion 5462 of the first crimp terminal 546 transfers heat from the crimp cylinder portion 5461 (the other end side of the heat transfer wire 542). It extends upward along the front surface of the plate member 541. The connection plate portion 5462 is arranged at a distance forward from the front surface of the heat transfer plate member 541 so that the plate thickness direction of the connection plate portion 5462 faces in the front-rear direction. Each of the two connecting plate portions 5462 is connected to the heat transfer plate member 541 via the heat transfer block 548. The two first crimp terminals 546 fixed to the two heat transfer wires 542 are arranged side by side with a space between them in the left-right direction.

二つの第二圧着端子547は、第一実施形態の二つの圧着端子544(図2,3参照)と同じ構成である。二つの第二圧着端子547の圧着筒部5471はそれぞれ、二本の伝熱線542の中途部に固定される。二つの第二圧着端子547の接続板部5472はそれぞれ、圧着筒部5471から伝熱板部材541の前面に沿うように下方に延びる。二つの接続板部5472はそれぞれ、接続板部5472の板厚方向が前後方向に向くようにして伝熱板部材541の前面に対して前方に間隔をあけて配置される。二つの接続板部5472はそれぞれ、二つの伝熱ブロック548を介して伝熱板部材541に接続される。二本の伝熱線542にそれぞれ固定された二つの第二圧着端子547は、左右方向に間隔をあけて並んで配置される。 The two second crimp terminals 547 have the same configuration as the two crimp terminals 544 (see FIGS. 2 and 3) of the first embodiment. The crimping cylinder portion 5471 of the two second crimp terminals 547 is fixed to the middle portion of the two heat transfer wires 542, respectively. The connection plate portion 5472 of the two second crimp terminals 547 extends downward from the crimp cylinder portion 5471 along the front surface of the heat transfer plate member 541, respectively. Each of the two connecting plate portions 5472 is arranged so as to have the plate thickness direction of the connecting plate portion 5472 facing in the front-rear direction with an interval forward with respect to the front surface of the heat transfer plate member 541. The two connecting plate portions 5472 are each connected to the heat transfer plate member 541 via the two heat transfer blocks 548. The two second crimp terminals 547 fixed to the two heat transfer wires 542, respectively, are arranged side by side at intervals in the left-right direction.

二つの伝熱ブロック548はそれぞれ、導電性を有する材料からなり、第一ブロック部5481、第二ブロック部5482及び連結部5483を有する。第一ブロック部5481及び第二ブロック部5482はいずれも矩形ブロック状に形成されている。伝熱ブロック548は、第一ブロック部5481と第二ブロック部5482とが上下方向に間隔をあけて並んで配置され、それらの第一及び第二ブロック部5481,5482の左右一方端側を連結部5483により連結して一体に構成されている。連結部5483は第一及び第二ブロック部5481,5482よりも左右寸法が小さくなっており、伝熱ブロック548は、第一及び第二ブロック部5481,5482の間に隙間を有する略C字状に形成されている。 Each of the two heat transfer blocks 548 is made of a conductive material and has a first block portion 5484, a second block portion 5482 and a connecting portion 5843. Both the first block portion 5481 and the second block portion 5482 are formed in a rectangular block shape. In the heat transfer block 548, the first block portion 5481 and the second block portion 5482 are arranged side by side at intervals in the vertical direction, and the left and right one end sides of the first and second block portions 5481,5482 are connected to each other. It is integrally configured by being connected by a portion 5843. The connecting portion 5843 has a smaller left-right dimension than the first and second block portions 5481,5482, and the heat transfer block 548 has a substantially C-shape having a gap between the first and second block portions 5481,5482. Is formed in.

二つの伝熱ブロック548は、上下方向に延びて左右方向に間隔をあけて並び、伝熱板部材541の前面に面接触した状態で配置される。それら二つの伝熱ブロック548にはそれぞれ、伝熱線542の他端部側に固定された第一圧着端子546の接続板部5462が、第一ブロック部5481の前面に面接触した状態で二つの皿ネジ117及びナット118によって固定される。このとき、伝熱線542の他端部側及び、それに固定された第一圧着端子546の圧着筒部5461は、伝熱ブロック548における第一及び第二ブロック部5481,5482の間の隙間(連結部5483の側方の隙間)内に配置される。また、二つの伝熱ブロック548にはそれぞれ、伝熱線542の中途部に固定された第二圧着端子547の接続板部5472が、第二ブロック部5482の前面に面接触した状態で二つの皿ネジ119及びナット120によって固定される。 The two heat transfer blocks 548 extend in the vertical direction and are arranged at intervals in the horizontal direction, and are arranged in a state of being in surface contact with the front surface of the heat transfer plate member 541. In each of the two heat transfer blocks 548, the connection plate portion 5462 of the first crimp terminal 546 fixed to the other end side of the heat transfer wire 542 is in surface contact with the front surface of the first block portion 5484. It is fixed by a countersunk screw 117 and a nut 118. At this time, the other end side of the heat transfer wire 542 and the crimp cylinder portion 5461 of the first crimp terminal 546 fixed to the other end side are gaps (connected) between the first and second block portions 5481,5482 in the heat transfer block 548. It is arranged in the side gap) of the portion 5843. Further, in each of the two heat transfer blocks 548, the connection plate portion 5472 of the second crimp terminal 547 fixed to the middle portion of the heat transfer wire 542 is in surface contact with the front surface of the second block portion 5482. It is fixed by screws 119 and nuts 120.

二つの伝熱ブロック548はそれぞれ、上記のように第一圧着端子546及び第二圧着端子547が固定された後に、上下方向に並ぶ四つの皿ネジ121及びナット122によって伝熱板部材541の前面に固定される。伝熱ブロック548と伝熱板部材541の前面との間には、これらを電気的に絶縁する第一実施形態と同様の絶縁シート123が設けられる。四つの皿ネジ121及びナット122と伝熱ブロック548との間には、これらを電気的に絶縁する絶縁ブッシュ124が設けられる。これらにより、伝熱ブロック548と伝熱板部材541とを電気的に絶縁するようになっている。二つの伝熱ブロック548における第一及び第二ブロック部5481,5482の間の隙間内に配置される、伝熱線542の他端部側及び、それに固定された第一圧着端子546の圧着筒部5461と、それらに対向する伝熱板部材541の前面との間にも絶縁シート123が設けられる。これにより、伝熱線542の他端部側及び第一圧着端子546の圧着筒部5461と伝熱板部材541との間でも電気的な短絡が発生することを抑制又は防止することができるようになっている。絶縁シート123は、伝熱ブロック548より上下側に僅かに突出している。 After the first crimp terminal 546 and the second crimp terminal 547 are fixed to each of the two heat transfer blocks 548 as described above, the front surface of the heat transfer plate member 541 is provided by four countersunk screws 121 and nuts 122 arranged in the vertical direction. Is fixed to. An insulating sheet 123 similar to that in the first embodiment is provided between the heat transfer block 548 and the front surface of the heat transfer plate member 541 to electrically insulate them. An insulating bush 124 that electrically insulates the four countersunk screws 121 and the nut 122 and the heat transfer block 548 is provided. As a result, the heat transfer block 548 and the heat transfer plate member 541 are electrically insulated from each other. The other end side of the heat transfer wire 542 and the crimping cylinder portion of the first crimp terminal 546 fixed to the other end side of the heat transfer wire 542 arranged in the gap between the first and second block portions 5481,5482 in the two heat transfer blocks 548. An insulating sheet 123 is also provided between the 5461 and the front surface of the heat transfer plate member 541 facing them. As a result, it is possible to suppress or prevent the occurrence of an electrical short circuit between the other end side of the heat transfer wire 542 and the crimp cylinder portion 5461 of the first crimp terminal 546 and the heat transfer plate member 541. It has become. The insulating sheet 123 slightly protrudes vertically from the heat transfer block 548.

第二実施形態のコネクタホルダ5Cでは、充電コネクタ4がコネクタホルダ5Cに保持されると、充電コネクタ4の二つのコネクタピン42がそれぞれ、コネクタホルダ5Cの二つのソケット端子522のピン接続部5221に挿入され、コネクタピン42の外周面がピン接続部5221の内周面に接触した状態となる。このような状態となると、充電ケーブル3や二つのコネクタピン42の熱はそれぞれ、ソケット端子522のピン接続部5221から伝熱線接続部5222へと伝わり、伝熱線接続部5222から伝熱線542へと伝わる。伝熱線542へと伝わった熱は、伝熱線542の他端部側に固定された第一圧着端子546の圧着筒部5461から接続板部5462へと伝わり、接続板部5462から伝熱ブロック548(第一ブロック部5481)、絶縁シート123、伝熱板部材541の順に経由して放熱部53に伝わる。さらに、伝熱線接続部5222から伝熱線542へと伝わった熱は、伝熱線542の中途部に固定された第二圧着端子547の圧着筒部5471から接続板部5472へと伝わり、接続板部5472から伝熱ブロック548(第二ブロック部5482)、絶縁シート123、伝熱板部材541の順に経由して放熱部53に伝わる。このように、二つのコネクタピン42の熱はそれぞれ、二つの伝熱経路をたどって放熱部53に伝わり、放熱部53によって放散される。 In the connector holder 5C of the second embodiment, when the charging connector 4 is held by the connector holder 5C, the two connector pins 42 of the charging connector 4 are connected to the pin connection portion 5221 of the two socket terminals 522 of the connector holder 5C, respectively. Once inserted, the outer peripheral surface of the connector pin 42 is in contact with the inner peripheral surface of the pin connection portion 5221. In such a state, the heat of the charging cable 3 and the two connector pins 42 is transferred from the pin connection portion 5221 of the socket terminal 522 to the heat transfer wire connection portion 5222, respectively, and from the heat transfer wire connection portion 5222 to the heat transfer wire 542. It is transmitted. The heat transferred to the heat transfer wire 542 is transmitted from the crimping cylinder portion 5461 of the first crimp terminal 546 fixed to the other end side of the heat transfer wire 542 to the connection plate portion 5462, and from the connection plate portion 5462 to the heat transfer block 548. It is transmitted to the heat radiating section 53 via the (first block section 5481), the insulating sheet 123, and the heat transfer plate member 541 in this order. Further, the heat transferred from the heat transfer wire connection portion 5222 to the heat transfer wire 542 is transmitted from the crimp cylinder portion 5471 of the second crimp terminal 547 fixed to the middle portion of the heat transfer wire 542 to the connection plate portion 5472, and is transmitted to the connection plate portion. It is transmitted from 5472 to the heat radiating section 53 via the heat transfer block 548 (second block section 5482), the insulating sheet 123, and the heat transfer plate member 541 in this order. In this way, the heat of the two connector pins 42 is transmitted to the heat radiating unit 53 along the two heat transfer paths, and is dissipated by the heat radiating unit 53.

第二実施形態によれば、第一実施形態と同様の効果を奏する。また、第二実施形態のコネクタホルダ5Cでは、伝熱ブロック548が、第一圧着端子546に接続される第一ブロック部5481と、第二圧着端子547に接続される第二ブロック部5482とを連結部5483によって一体に形成して構成されている。これにより、前後方向から見た伝熱ブロック548の面積は、第一ブロック部5481、第二ブロック部5482のそれぞれの面積よりも大きいため、伝熱ブロック548に伝わった熱を上下左右方向により広く拡散した上で、伝熱板部材541に効率よく伝えることができる。従って、コネクタピン42及び充電ケーブル3の熱をさらに効率よく逃がして温度を低下させることができる。 According to the second embodiment, the same effect as that of the first embodiment is obtained. Further, in the connector holder 5C of the second embodiment, the heat transfer block 548 has a first block portion 5481 connected to the first crimp terminal 546 and a second block portion 5482 connected to the second crimp terminal 547. It is integrally formed by a connecting portion 5843. As a result, the area of the heat transfer block 548 viewed from the front-rear direction is larger than the area of each of the first block portion 5481 and the second block portion 5482, so that the heat transferred to the heat transfer block 548 is wider in the vertical and horizontal directions. After being diffused, it can be efficiently transmitted to the heat transfer plate member 541. Therefore, the heat of the connector pin 42 and the charging cable 3 can be released more efficiently to lower the temperature.

第二実施形態においては、例えば第一ブロック部5481と第二ブロック部5482とが別個に形成され、互いに間隔をあけて配置されてもよい。 In the second embodiment, for example, the first block portion 5484 and the second block portion 5482 may be formed separately and arranged at intervals from each other.

以上、本発明に係る実施形態について説明したが、本発明は上述した実施形態に限定されるものではなく、本発明の主旨を逸脱しない範囲において種々の変更を加えることができる。例えば、上記実施形態では、空冷ヒートシンクである放熱部53を備えているが、このような放熱部53(空冷ヒートシンク)は必須ではなく、コネクタホルダ5,5Cのケース51や充電装置1の筐体2等に伝熱部54,54Cを接続するように構成し、コネクタピン42の熱をケース51や筐体2を介して放散させるようにしてもよい。或いは、伝熱板部材541を放熱部としてみなす構成としてもよい。 Although the embodiments according to the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist of the present invention. For example, in the above embodiment, the heat radiating unit 53 which is an air-cooled heat sink is provided, but such a heat radiating unit 53 (air-cooled heat sink) is not indispensable, and the case 51 of the connector holders 5 and 5C and the housing of the charging device 1 are provided. The heat transfer portions 54 and 54C may be connected to the second or the like, and the heat of the connector pin 42 may be dissipated through the case 51 or the housing 2. Alternatively, the heat transfer plate member 541 may be regarded as a heat dissipation unit.

本発明において、伝熱線542は、複数本の金属細線5421をより合わせたリッツ線に限らず、例えば一本の金属線(例えば銅線)であってもよい。また、伝熱線542の中途部に取り付けられた圧着端子544,547の接続板部5442,5472は、少なくとも伝熱板部材541の前面に沿って伝熱線542の他端部が延びる方向と異なる方向に延びればよく、例えば、伝熱線542の中途部から伝熱板部材541の前面に沿うように右方向や左方向に延びて配置されてもよい。 In the present invention, the heat transfer wire 542 is not limited to a litz wire obtained by twisting a plurality of thin metal wires 5421, and may be, for example, a single metal wire (for example, a copper wire). Further, the connection plate portions 542 and 5472 of the crimp terminals 544 and 547 attached to the middle portion of the heat transfer wire 542 are in a direction different from the direction in which the other end of the heat transfer wire 542 extends at least along the front surface of the heat transfer plate member 541. For example, it may extend from the middle of the heat transfer wire 542 to the right or left along the front surface of the heat transfer plate member 541.

本発明において、伝熱部54,54Cは、例えば、コネクタピン42の熱を放熱部53に伝える伝熱経路を三つ以上有してもよい。伝熱部54が三つ以上の伝熱経路を有するためには、例えば同一の伝熱線542の中途部に二つ以上の圧着端子544,547を取り付けるようにしてもよい。伝熱線542や圧着端子544,546,547、伝熱ブロック545,548、伝熱板部材541は、例えば、電気的な絶縁材料によって構成されてもよい。 In the present invention, the heat transfer units 54 and 54C may have, for example, three or more heat transfer paths that transfer the heat of the connector pin 42 to the heat dissipation unit 53. In order for the heat transfer portion 54 to have three or more heat transfer paths, for example, two or more crimp terminals 544 and 547 may be attached to the middle portion of the same heat transfer wire 542. The heat transfer wire 542, the crimp terminal 544, 546, 547, the heat transfer block 545, 548, and the heat transfer plate member 541 may be made of, for example, an electrical insulating material.

本発明においては、例えば、二つのソケット端子522が伝熱線542や圧着端子544,546,547、伝熱ブロック545,548を介さずに伝熱板部材541に直接接続されてもよい。また、伝熱線542や圧着端子544,546,547、伝熱ブロック545が伝熱板部材541を介さずに放熱部53に直接接続されてもよい。 In the present invention, for example, the two socket terminals 522 may be directly connected to the heat transfer plate member 541 without passing through the heat transfer wire 542, the crimp terminals 544, 546, 547, and the heat transfer blocks 545, 548. Further, the heat transfer wire 542, the crimp terminals 544, 546, 547, and the heat transfer block 545 may be directly connected to the heat dissipation unit 53 without passing through the heat transfer plate member 541.

1 充電装置
4 充電コネクタ
42 コネクタピン
5,5C コネクタホルダ
52 コネクタ受け部
522 ソケット端子
53 放熱部
54,54C 伝熱部
541 伝熱板部材
542 伝熱線(第一伝熱部材)
544 圧着端子(第二伝熱部材)
545 伝熱ブロック(第二伝熱部材)
546 第一圧着端子(第一伝熱部材)
547 第二圧着端子(第二伝熱部材)
1 Charging device 4 Charging connector 42 Connector pin 5, 5C Connector holder 52 Connector receiving part 522 Socket terminal 53 Heat transfer part 54, 54C Heat transfer part 541 Heat transfer plate member 542 Heat transfer wire (first heat transfer member)
544 Crimping terminal (second heat transfer member)
545 Heat transfer block (second heat transfer member)
546 First crimp terminal (first heat transfer member)
547 Second crimp terminal (second heat transfer member)

Claims (5)

コネクタピンを有する充電コネクタと、前記充電コネクタが充電に利用されていないときに前記充電コネクタを保持するコネクタホルダと、を備える充電装置において、
前記コネクタホルダは、前記コネクタピンが挿入されるソケット端子を有するコネクタ受け部と、前記ソケット端子に接続されて設けられ、前記ソケット端子に挿入された前記コネクタピンの熱を放熱部に伝える伝熱部と、を備える充電装置。
In a charging device comprising a charging connector having a connector pin and a connector holder holding the charging connector when the charging connector is not used for charging.
The connector holder is provided by being connected to a connector receiving portion having a socket terminal into which the connector pin is inserted and the socket terminal, and transfers heat of the connector pin inserted into the socket terminal to a heat transfer portion. A charging device that includes a part.
前記伝熱部は、前記コネクタピンの熱を前記放熱部に伝える二つの伝熱経路を有する請求項1に記載の充電装置。 The charging device according to claim 1, wherein the heat transfer unit has two heat transfer paths that transfer the heat of the connector pin to the heat radiation unit. 前記伝熱部は、前記ソケット端子と前記放熱部とに跨って接続される第一伝熱部材を有する請求項1又は2に記載の充電装置。 The charging device according to claim 1 or 2, wherein the heat transfer unit has a first heat transfer member connected across the socket terminal and the heat radiation unit. 前記伝熱部は、前記第一伝熱部材の中途部と前記放熱部とに跨って接続される第二伝熱部材を有する請求項3に記載の充電装置。 The charging device according to claim 3, wherein the heat transfer unit has a second heat transfer member connected across the middle portion of the first heat transfer member and the heat radiation unit. 前記伝熱部は、前記放熱部に面接触した状態で設けられる伝熱板部材を有する請求項1から4のいずれか一項に記載の充電装置。 The charging device according to any one of claims 1 to 4, wherein the heat transfer unit has a heat transfer plate member provided in a state of being in surface contact with the heat radiation unit.
JP2020119290A 2020-07-10 2020-07-10 Charging device Pending JP2022016032A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114735098A (en) * 2022-03-28 2022-07-12 国网河北省电力有限公司沧州供电分公司 Fill electric pile robot based on power grid planning usefulness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114735098A (en) * 2022-03-28 2022-07-12 国网河北省电力有限公司沧州供电分公司 Fill electric pile robot based on power grid planning usefulness
CN114735098B (en) * 2022-03-28 2023-02-28 国网河北省电力有限公司沧州供电分公司 Fill electric pile robot based on power grid planning usefulness

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