WO2023125140A1 - 一种端子测温结构 - Google Patents

一种端子测温结构 Download PDF

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Publication number
WO2023125140A1
WO2023125140A1 PCT/CN2022/140299 CN2022140299W WO2023125140A1 WO 2023125140 A1 WO2023125140 A1 WO 2023125140A1 CN 2022140299 W CN2022140299 W CN 2022140299W WO 2023125140 A1 WO2023125140 A1 WO 2023125140A1
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Prior art keywords
temperature sensor
terminal
temperature
temperature measuring
groove
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PCT/CN2022/140299
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English (en)
French (fr)
Inventor
王超
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长春捷翼汽车科技股份有限公司
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Publication of WO2023125140A1 publication Critical patent/WO2023125140A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles

Definitions

  • the invention belongs to the technical field of electric energy transmission device manufacturing, and in particular relates to a terminal temperature measuring structure.
  • Non-contact temperature measurement because the temperature measurement element is not in contact with the measured medium The medium is in contact, so its temperature measurement range is very wide, and the upper limit of its temperature measurement is not limited in principle.
  • non-contact temperature measurement is affected by the emissivity of the object, the distance from the measured object to the temperature measurement element, and other media such as smoke and water vapor.
  • the temperature measurement error is large, and the heat transfer through radiant heat has a long reaction time and a slow temperature measurement speed, which cannot meet many occasions that require timely and accurate temperature measurement.
  • Contact temperature measurement is simple, reliable, and has high measurement accuracy.
  • the purpose of the present invention is to provide a terminal temperature measurement structure, which can increase the contact area by embedding the temperature sensor on the terminal, and reduce the error of temperature measurement by omitting the heat conduction parts, so as to ensure the safety of charging.
  • the first aspect of the present invention discloses a terminal temperature measurement structure, including a terminal and a temperature sensor
  • the terminal has a mosaic groove, and the mosaic groove has an inner contact surface
  • the temperature sensor is at least partially arranged in the mosaic groove, and the temperature sensor has a temperature measuring surface attached to the inner contact surface.
  • the temperature sensor is provided with a plug-in interface, and the plug-in interface is used for connecting an electric transmission part.
  • the inner contact surface is a plane or a curved surface.
  • the terminal has a cylindrical section, the inlay groove is a circumferential groove provided on the cylindrical section, and the temperature measuring surface is an arc surface matched with the circumferential groove.
  • the degree of arc of the arc surface is 28°-180°.
  • a fixing part is also included, and the fixing part is connected end to end with the temperature sensor to form an annular shape arranged in the circumferential groove.
  • the fixing part is elastic.
  • a heat-conducting silica gel is arranged between the inner contact surface and the temperature measuring surface.
  • the temperature sensor is an NTC temperature sensor or a PTC temperature sensor.
  • the radial thickness of the temperature sensor is less than or equal to the depth of the mosaic groove.
  • a terminal temperature measurement structure has the following effects: the temperature sensor is arranged in the groove to make the bonding between the temperature sensor and the terminal more stable, the temperature signal collected by the temperature sensor is closer to the actual temperature change, and the error is smaller .
  • the connector is connected with the temperature sensor, and the temperature sensor can be installed conveniently first, and then the wiring can be connected, which can meet the needs of complex installation environments.
  • the temperature sensor is arc-shaped and fits with the circumferential groove for easy installation on the terminal, supplemented by a fixed part, so that the temperature sensor and the circumferential groove fit closer together, and the measured temperature is closer to the real value.
  • Thermally conductive silica gel can assist the connection between the terminal and the temperature sensor, increase the effective contact area between the terminal and the temperature sensor, increase the adhesion, and avoid the reduction of the effective contact area caused by vibration and the reduction of heat conduction efficiency due to the generation of air gaps.
  • FIG. 1 is a schematic diagram of a terminal structure of a terminal temperature measuring structure according to the present invention.
  • Fig. 2 is a structural schematic diagram of a temperature sensor with a terminal temperature measuring structure according to the present invention.
  • Fig. 3 is a structural schematic diagram of a terminal temperature measuring structure according to the present invention.
  • Fig. 4 is a structural schematic diagram of a fixed part of a terminal temperature measuring structure according to the present invention.
  • the invention discloses a terminal temperature measurement structure, as shown in Figures 1-4: it includes a terminal 1 and a temperature sensor 2; the terminal 1 has an inlay groove 11, and the inlay groove 11 has an inner contact surface 111;
  • the temperature sensor 2 is at least partially disposed in the mosaic groove 11 , and the temperature sensor 2 has a temperature measuring surface 21 attached to the inner contact surface 111 .
  • the current temperature measurement method of the charging structure for charging vehicles is generally to install a temperature sensor 2 on the surface of the terminal 1, and the temperature sensor 2 directly measures the temperature of the terminal 1.
  • the temperature measured by the temperature sensor 2 is not accurate enough due to the transition and consumption in the middle.
  • the solution provided by the present invention is to provide an embedding groove 11 on the terminal 1, and to inlay a temperature sensor 2 in the embedding groove 11, so that the temperature measuring surface 21 of the temperature sensor 2 and the inner contact surface 11 of the embedding groove 11 can fully fit, that is The heat conduction element is omitted, and the contact area between the temperature sensor 2 and the terminal 1 is ensured, so that the temperature value of the terminal 1 measured by the temperature sensor 2 is closer to the real value.
  • the temperature sensor 2 is provided with a plug interface 22 , as shown in FIG. 2 , the plug interface 22 is used for connecting an electrical transmission element.
  • the electrical transmission part can be a plug connector or a wire, which is used to electrically connect the temperature sensor 2 with the control terminal or the detection terminal. Setting the plug interface 22 on the temperature sensor 2 can facilitate the installation of the temperature sensor 2.
  • the temperature sensor 2 can be installed on the terminal 1 first, and then the wires can be connected, which can meet more complex installation environments, and can also make the charging stand The internal wiring is more reasonable.
  • the socket 22 can be arranged on the side of the terminal 1, and the connector or wire can be arranged in the radial direction of the terminal 1, or a boss can be set on the temperature sensor 2, and the socket 22 can be arranged on the boss.
  • the side of the boss makes the connector or wire parallel to the axial direction of the terminal 1 .
  • the inner contact surface 111 is a plane or a curved surface.
  • the temperature measuring surface 21 matched with the inner contact surface 111 is also a plane, and when the inner contact surface 111 is a curved surface, the temperature measurement surface matched with the inner contact surface 111 21 is also a curved surface.
  • the design of the curved surface can increase the contact area between the temperature sensor 2 and the terminal 1 in a limited space to obtain a more accurate temperature value.
  • the terminal 1 has a cylindrical section 3, the inlay groove 11 is a circumferential groove provided on the cylindrical section 3, and the temperature measuring surface 21 is in line with the cylindrical section 3.
  • the circular arc surface matched with the circumferential groove.
  • the temperature sensor 2 is arranged in the circumferential groove, and the arc surface bends along with the circumferential groove, so that the inner contact surface 111 fitted in the circumferential groove can obtain a more accurate temperature value.
  • the degree of arc of the arc surface is 28°-180°.
  • the large arc degree of the arc surface means that the temperature measuring surface of the temperature sensor 2 is longer in the same radius. If the arc degree of the arc surface is too small, the contact area between the temperature sensor 2 and the terminal 1 is too small, and the measured The temperature value is inaccurate.
  • the inventor carried out relevant experiments and selected the same terminal 1, each terminal 1 has the same inlay groove 11, and the inlay groove 11 is a circumferential groove on the cylindrical section 3 , select the temperature sensor 2 with the same radius and different degrees of arc, measure the temperature of terminal 1, and make the difference with the actual temperature to get the absolute value. The absolute value is greater than 0.5°C as unqualified, and the results are recorded in Table 1.
  • Table 1 The influence of the arc degree of the arc surface on the temperature measurement effect
  • a fixing part 4 is further included. As shown in FIG. 4 , the fixing part 4 is connected end to end with the temperature sensor 2 to form an annular shape that can be arranged in the circumferential groove. One end of the fixing part 4 can be hinged with the temperature sensor 2, and the other end is clamped or locked with the temperature sensor 2, so that the two form a ring at least partially embedded in the circumferential groove.
  • the fixing part 4 is elastic. After the elastic fixing part 4 is connected with the temperature sensor 2 at both ends, it is then sleeved in the circumferential groove, which is more convenient to use.
  • a heat-conducting silica gel is disposed between the inner contact surface 111 and the temperature measuring surface 21 .
  • Thermally conductive silica gel can assist the connection between terminal 1 and temperature sensor 2, increase the effective contact area, increase adhesion, and avoid the reduction of effective contact area caused by vibration or the reduction of heat conduction efficiency due to air gaps; at the same time, the thermally conductive silica gel can be filled As a buffer between temperature sensor 2 and terminal 1.
  • the temperature sensor 2 is an NTC temperature sensor or a PTC temperature sensor.
  • NTC temperature sensor and PTC temperature sensor are easy to use, and the resistance value can be arbitrarily selected between 0.1 and 100k ⁇ ; it is easy to process into complex shapes, can be mass-produced, has good stability and strong overload capacity, and is suitable for conversion joints. For products that require small size and stable performance.
  • the PTC sensor is more stable than the NTC sensor.
  • the bimetal temperature sensor is composed of two metals with different expansion coefficients. When the temperature changes, the metal with a large expansion coefficient will bend, which has better vibration resistance and is suitable for electric vehicles.
  • the radial thickness of the temperature sensor 2 is less than or equal to the depth of the mosaic groove 11 .
  • the temperature sensor 2 is embedded in the embedding groove 11, and the area where the temperature sensor 2 is located needs to be plugged into the mating terminal. If the temperature sensor 2 protrudes from the embedding groove 11, it will affect the insertion of the terminal 1 into the mating terminal. Therefore, the radial thickness of the temperature sensor 2 is less than or equal to the depth of the embedding groove 11 to ensure that the temperature sensor 2 will not affect the insertion of the terminals.
  • a groove may also be provided on the terminal 1 for accommodating a plug connector or a wire connected to the plug port 22 of the temperature sensor 2 . In order to ensure that neither the temperature sensor 2 nor the electrical connectors connected thereto will hinder the insertion of the terminal 1 and the mating terminal.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

本发明公开了一种端子测温结构，属于电能传输装置制造技术领域，包括端子(1)和温度传感器(2)；所述端子(1)具有镶嵌槽(11)，所述镶嵌槽(11)具有内接触面(111)；所述温度传感器(2)至少部分设置在所述镶嵌槽(11)内，所述温度传感器(2)具有与所述内接触面(111)贴合的测温面(21)。本发明的温度传感器设置在凹槽中能够使温度传感器与端子的贴合更稳固，温度传感器采集到的温度信号更加贴近实际温度变化，误差更小。插接件与温度传感器连接，能够方便的先安装温度传感器，再进行线路连接，可以满足复杂安装环境的需要。

Description

一种端子测温结构
本申请要求2021年12月27日递交的申请号为202123312383.0、发明名称为“一种端子测温结构”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明属于电能传输装置制造技术领域，具体涉及到一种端子测温结构。
背景技术
随着新能源技术的快速发展，新能源汽车的数量也越来越多。当前新能源汽车的充电枪头和充电座都会有对插结构的充电端子。当汽车充电时，充电端子处的电流迅速增大，发热量急剧升高，因此为了安全起见，很多厂家会在充电端子处设置测温装置。测量温度的方法有很多，仅从测量体与被测介质接触与否来分，有接触式测温和非接触式测温两大类，非接触式测温，由于测温元件不与被测介质接触，因而其测温范围很广，其测温上限原则上不受限制，但是，非接触式测温受到物体的发射率、被测对象到测温元件的距离，烟尘和水汽等其他介质的影响，一般测温误差较大，而且通过辐射热传热量，反应时间较长，测温速度较慢，不能满足很多要求测温及时率和准确率的场合。接触式测温简单、可靠，且测量精度高。但是普遍存在两个问题，一个问题是温度传感器与端子表面的接触面积不够，使得测量的温度值和实际温度值存在差距；另一个问题是往往需要一个导热件同时连接端子和温度传感器，端子的温度经导热件传递给温度传感器，在这个过程中也难免有温度的损失，导致温度的测量不够精确，并且还需要额外的空间才能安放导热件。因此，现有技术中亟需一种新的方案来解决上述问题。
发明内容
本发明的目的是提供一种端子测温结构，能够通过将温度传感器镶嵌在端子上来增加接触面积、并通过省去导热件来减少温度测量的误差，从而保证充电安全。
本发明第一方面，公开了一种端子测温结构，包括端子和温度传感器；
所述端子具有镶嵌槽，所述镶嵌槽具有内接触面；
所述温度传感器至少部分设置在所述镶嵌槽内，所述温度传感器具有与所述内接触 面贴合的测温面。
所述温度传感器上设置有插接口，所述插接口用于连接电传输件。
所述内接触面为平面或曲面。
所述端子具有圆柱段，所述镶嵌槽为设置在所述圆柱段上的周向槽，所述测温面为与所述周向槽匹配的圆弧面。
所述圆弧面的圆弧度数为28°-180°。
还包括固定部，所述固定部与所述温度传感器首尾连接组成设置在所述周向槽内的环形。
所述固定部具有弹性。
所述内接触面与所述测温面间设置有导热硅胶。
所述温度传感器为NTC温度传感器或PTC温度传感器。
所述温度传感器的径向厚度小于等于所述镶嵌槽的深度。
根据本公开的一种端子测温结构，具有如下效果：温度传感器设置在凹槽中能够使温度传感器与端子的贴合更稳固，温度传感器采集到的温度信号更加贴近实际温度变化，误差更小。
插接件与温度传感器连接，能够方便的先安装温度传感器，再进行线路连接，可以满足复杂安装环境的需要。
温度传感器为圆弧形与周向槽配合方便安装在端子上，再辅以固定部，使温度传感器与周向槽的贴合更紧密，测量的温度更接近真实值。
导热硅胶能够辅助端子与温度传感器的连接，提高端子与温度传感器的有效接触面积，增大附着力，避免因震动导致的有效接触面积减小、因产生空气间隙的情况下热传导效率的降低。
附图说明
被结合在说明书中并构成说明书的一部分的附图示出了本发明的实施例，并且连同其说明一起用于解释本发明的原理。
图1为本发明一种端子测温结构的端子结构示意图。
图2为本发明一种端子测温结构的温度传感器结构示意图。
图3为本发明一种端子测温结构的结构示意图。
图4为本发明一种端子测温结构的固定部结构示意图。
图中标示如下：
1、端子；11、镶嵌槽；111、内接触面；2、温度传感器；21、测温面；22、插接口；3、圆柱段；4、固定部。
具体实施方式
现在将参照附图来详细描述本发明的各种示例性实施例。应注意到：除非另外具体说明，否则在这些实施例中阐述的部件和步骤的相对布置、数字表达式和数值不限制本发明的范围。
以下对至少一个示例性实施例的描述实际上仅仅是说明性的，决不作为对本发明及其应用或使用的任何限制。
对于相关领域普通技术人员已知的技术、方法和设备可能不作详细讨论，但在适当情况下，所述技术、方法和设备应当被视为说明书的一部分。
在这里示出和讨论的所有例子中，任何具体值应被解释为仅仅是示例性的，而不是作为限制。因此，示例性实施例的其它例子可以具有不同的值。
本发明公开了一种端子测温结构，如图1-图4所示：包括端子1和温度传感器2；所述端子1具有镶嵌槽11，所述镶嵌槽11具有内接触面111；
所述温度传感器2至少部分设置在所述镶嵌槽11内，所述温度传感器2具有与所述内接触面111贴合的测温面21。目前的充电汽车用充电结构的测温方式，一般是在端子1表面设置温度传感器2，温度传感器2直接测量端子1的温度，但是由于受温度传感器2形状的影响，与端子很难有足够大的接触面积，当通过设置导热件测温的方式,端子1的温度由于中间的过渡和消耗，温度传感器2测量的温度就不够精准。本发明所提供的方案，是在端子1上设置镶嵌槽11，在镶嵌槽11内镶嵌温度传感器2，温度传感器2的测温面21与镶嵌槽11的内接触面11能够充分贴合，即省去了导热件，有保证了温度传感器2与端子1的接触面积，这样温度传感器2测量的端子1温度值更接近真实值。
在优选的实施方式中，所述温度传感器2上设置有插接口22，如图2所示，所述插接口22用于连接电传输件。电传输件可以为插接件，也可以为导线，用于将温度传感器2与控制端或检测端进行电连接。将插接口22设置在温度传感器2上，能够方便温度传感器2的安装，温度传感器2可以先安装在端子1上，再进行导线的连接，可以满足更多复杂的安装环境，也能使充电座内部的走线更加合理。插接口22可以设置在端子1的侧面，插接件或导线在端子1的径向设置，也可以在温度传感器2上设置凸台，将插接 口22设置在凸台上，此时可设置在凸台的侧面，如图2所示，使插接件或导线平行于端子1的轴向。
在优选的实施方式中，所述内接触面111为平面或曲面。相应的，当内接触面111为平面时，与内接触面111匹配贴合的测温面21也为平面，当内接触面111为曲面时，与内接触面111匹配贴合的测温面21也为曲面。曲面的设计能够在有限的空间内增加温度传感器2和端子1的接触面积，以获得更精准的温度值。
在优选的实施方式中，如图3所示，所述端子1具有圆柱段3，所述镶嵌槽11为设置在所述圆柱段3上的周向槽，所述测温面21为与所述周向槽匹配的圆弧面。将温度传感器2设置在周向槽内，圆弧面随着周向槽弯曲，从而贴合在周向槽内的内接触面111能够获得更准确的温度值。
进一步的，所述圆弧面的圆弧度数为28°-180°。
圆弧面的圆弧度数大意味着同样半径下温度传感器2的测温面长度更长，如果圆弧面的圆弧度数过小，则温度传感器2与端子1的接触面积太小，测量的温度值不精确，为了选择最合适的圆弧度数，发明人进行了相关试验，选用相同的端子1，每个端子1具有相同的镶嵌槽11，镶嵌槽11为圆柱段3上的周向槽，选择半径相同，圆弧度数不同的温度传感器2，对端子1的温度进行测量，并与实际温度做差取绝对值，绝对值大于0.5℃为不合格，结果记录在表1中。
表1：圆弧面的圆弧度数对测温效果的影响
Figure PCTCN2022140299-appb-000001
从表1可以看出，圆弧面的圆弧度数小于28°时，测量的温度和实际温度的温差超过0.5℃，为不合格，当圆弧面的圆弧度数大于等于36°测量的温度与实际温度相同的温差在0.5℃以内，为合格。当圆弧度数达到180°时，测量的温度和实际温度已经没有差别，因此，发明人优选的圆弧度数为180°，也就是说圆弧面为半圆最为理想。而当圆弧度数大于180°之后，温度传感器2的开口小于端子1镶嵌槽11处的直径，无法进行安装，因此发明人选择的圆弧面的圆弧度数为28°-180°。
在优选的实施方式中，还包括固定部4，如图4所示，所述固定部4与所述温度传感器2首尾连接组成能够设置在所述周向槽内的环形。固定部4可以一端与温度传感器 2铰接，另一端与温度传感器2卡接或锁扣连接，以使两者组成一个至少部分镶嵌在周向槽内的环形。
在优选的实施方式中，所述固定部4具有弹性。弹性的固定部4可以两端同温度传感器2连接好之后，再套接在周向槽内，使用更方便。
在优选的实施方式中，所述内接触面111与所述测温面21间设置有导热硅胶。导热硅胶能够辅助端子1与温度传感器2的连接，提高有效接触面积，增大附着力，避免因震动导致的有效接触面积减小或者因产生空气间隙的情况下热传导效率的降低；同时导热硅胶填充可以作为温度传感器2与端子1的缓冲。
在优选的实施方式中，所述温度传感器2为NTC温度传感器或PTC温度传感器。选用NTC温度传感器、PTC温度传感器好处是使用方便，电阻值可在0.1～100kΩ间任意选择；易加工成复杂的形状，可大批量生产，稳定性好、过载能力强，适用于转换接头这种要求体积小，性能稳定的产品中。其中，PTC传感器相对于NTC传感器，更加稳定。双金属温度传感器由两种不同膨胀系数的金属构成，当温度变化时，膨胀系数大的金属发生弯曲，具有较好的抗振动性，适合用于电动汽车。
在优选的实施方式中，所述温度传感器2的径向厚度小于等于所述镶嵌槽11的深度。在一些情况中，温度传感器2镶嵌在镶嵌槽11内，温度传感器2所在区域还要和对插端子进行插接，如果温度传感器2突出于镶嵌槽11则会影响端子1插入对插端子。所以所述温度传感器2的径向厚度小于等于所述镶嵌槽11的深度就能保证温度传感器2不会对端子的插接造成影响。同时，在端子1上也可以设置凹槽用来容纳与温度传感器2的插接口22连接的插接件或导线。以保证温度传感器2和与其连接的电连接件都不会妨碍端子1与对插端子的插接。
虽然已经通过例子对本发明的一些特定实施例进行了详细说明，但是本领域的技术人员应该理解，以上例子仅是为了进行说明，而不是为了限制本发明的范围。本领域的技术人员应该理解，可在不脱离本发明的范围和精神的情况下，对以上实施例进行修改。本发明的范围由所附权利要求来限定。

Claims (10)

  1. 一种端子测温结构，其特征在于：包括端子(1)和温度传感器(2)；
    所述端子(1)具有镶嵌槽(11)，所述镶嵌槽(11)具有内接触面(111)；
    所述温度传感器(2)至少部分设置在所述镶嵌槽(11)内，所述温度传感器(2)具有与所述内接触面(111)贴合的测温面(21)。
  2. 根据权利要求1所述的一种端子测温结构，其特征在于：所述温度传感器(2)上设置有插接口(22)，所述插接口(22)用于连接电传输件。
  3. 根据权利要求1所述的一种端子测温结构，其特征在于：所述内接触面(111)为平面或曲面。
  4. 根据权利要求1所述的一种端子测温结构，其特征在于：所述端子(1)具有圆柱段(3)，所述镶嵌槽(11)为设置在所述圆柱段(3)上的周向槽，所述测温面(21)为与所述周向槽匹配的圆弧面。
  5. 根据权利要求4所述的一种端子测温结构，其特征在于：所述圆弧面的圆弧度数为28°-180°。
  6. 根据权利要求4所述的一种端子测温结构，其特征在于：还包括固定部(4)，所述固定部(4)与所述温度传感器(2)首尾连接组成设置在所述周向槽内的环形。
  7. 根据权利要求6所述的一种端子测温结构，其特征在于：所述固定部(4)具有弹性。
  8. 根据权利要求1所述的一种端子测温结构，其特征在于：所述内接触面(111)与所述测温面(21)间设置有导热硅胶。
  9. 根据权利要求1所述的一种端子测温结构，其特征在于：所述温度传感器(2)为NTC温度传感器或PTC温度传感器。
  10. 根据权利要求1所述的一种端子测温结构，其特征在于：所述温度传感器(2)的径向厚度小于等于所述镶嵌槽(11)的深度。
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