WO2022068873A1 - 电连接器的气密检测方法及车端电连接装置 - Google Patents

电连接器的气密检测方法及车端电连接装置 Download PDF

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Publication number
WO2022068873A1
WO2022068873A1 PCT/CN2021/121686 CN2021121686W WO2022068873A1 WO 2022068873 A1 WO2022068873 A1 WO 2022068873A1 CN 2021121686 W CN2021121686 W CN 2021121686W WO 2022068873 A1 WO2022068873 A1 WO 2022068873A1
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WIPO (PCT)
Prior art keywords
electrical connection
closed cavity
connection device
air pressure
air
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PCT/CN2021/121686
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English (en)
French (fr)
Inventor
张建平
周仁
黄春华
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奥动新能源汽车科技有限公司
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Publication of WO2022068873A1 publication Critical patent/WO2022068873A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention belongs to the field of intelligent detection of power exchange equipment, and particularly relates to an airtight detection method of an electrical connector and a vehicle-end electrical connection device.
  • Chinese invention patent CN201811642277.9 published on July 7, 2020 discloses an electrical connector, which is a battery end connecting part of a quick-change connector, and is used to connect with a battery pack.
  • a sealing detection device which detects the air pressure in the cavity formed by the electrical connection between the electrical connector and the vehicle-end electrical connector, but the cavity is small, and the initial value of the internal air pressure is originally small, so if the electrical connection When the device leaks due to the aging of the seal, the detected air pressure in the cavity will not change too much, thus greatly reducing the detection sensitivity.
  • the technical problem to be solved by the present invention is to provide an airtight detection method for an electrical connector and a vehicle end electrical connection device in order to overcome the defect of the prior art that the electrical replacement connector cannot automatically detect the tightness, which leads to potential safety hazards.
  • An airtight detection method for an electrical connector the electrical connector comprises a vehicle end electrical connection device and a battery end electrical connection device that cooperate with each other to realize electrical connection, the vehicle end electrical connection device has an annular sealing ring, so the When the vehicle end electrical connection device and the battery end electrical connection device cooperate to achieve electrical connection, the annular sealing ring is respectively connected to the mating ends of the vehicle end electrical connection device and the battery end electrical connection device to form a closed cavity, so The air tightness detection method is used to detect whether the closed cavity is leaking, including:
  • the air pressure in the closed cavity is detected, and whether the closed cavity is leaked is determined according to the air pressure.
  • the airtightness of the closed cavity after the battery end electrical connection device and the vehicle end electric connection device are matched is easy to fail.
  • air is charged into the closed cavity and the air pressure data is monitored, and the air pressure inside the closed cavity is increased by active inflation. , in order to accelerate the change of air pressure in the event of air leakage, so as to be able to effectively, actively and quickly judge the tightness of the connector, and further improve the safety of driving.
  • the step of detecting the air pressure in the closed cavity and judging whether the closed cavity is leaking according to the air pressure specifically includes:
  • the comparison result is obtained by comparing the real-time air pressure value with the standard air pressure value, or the air pressure value in the sealed cavity is dynamically monitored, and the comparison result is obtained according to the air pressure change value. , fast, direct and precise.
  • the step of judging whether the closed cavity is leaking according to the comparison result specifically includes:
  • the air tightness detection method further includes:
  • the closed cavity is filled with gas to ensure that the air pressure in the closed cavity is kept within a preset air pressure range.
  • the closed cavity can be continuously filled with gas, and dry and clean air can be continuously filled into the closed cavity to ensure the positive pressure in the closed cavity and prevent the humid air in rainy days, Foreign objects such as dust and water enter the connector cavity, which plays a certain role in active protection.
  • a vehicle end electrical connection device the vehicle end electrical connection device has an annular sealing ring, when the vehicle end electrical connection device and the battery end electrical connection device cooperate to achieve electrical connection, the annular sealing ring is respectively connected to the vehicle end
  • the electrical connection device and the mating end of the battery end electrical connection device form a closed cavity, and the vehicle end electrical connection device includes a detection component;
  • the detection component is installed on the vehicle end electrical connection device and communicated with the closed cavity;
  • the detection component is used to realize the above-mentioned airtight detection method of the electrical connector.
  • the detection component is installed on the electrical connection device at the vehicle end, and performs airtight detection on the closed cavity formed by the connector, so that the electric connector can realize the active judgment of airtightness according to the air pressure in the cavity, and the electric connector can be found in time for battery replacement.
  • the rear sealing performance further improves the safety of driving.
  • the detection component includes an inflatable element and a detection element
  • the inflatable element includes an air inlet and an air outlet, the air inlet communicates with external air, and the air outlet communicates with the closed cavity;
  • the detection element includes an air pressure detection port, and the air pressure detection port communicates with the closed cavity;
  • the inflation element is used to inflate the closed cavity
  • the detection element is used to detect the air pressure in the closed cavity
  • the detection part includes an inflatable element and a detection element that cooperate with each other.
  • the inflatable element inhales the external air through the air inlet and fills the closed cavity through the air outlet, and actively increases the air pressure inside the closed cavity to accelerate the change of air pressure during air leakage. Then, the air pressure in the closed cavity is detected by the detection element through the air pressure detection port communicated with the closed cavity, so as to realize the monitoring of the air pressure to detect the sealing performance of the closed cavity.
  • the vehicle-end electrical connection device includes a fixing seat, and two air holes are opened on the fixing seat, and the two air holes are respectively communicated with the air outlet and the air pressure detection port.
  • the fixed connection between the detection component and the vehicle end electrical connection device is ensured, and the corresponding air holes are set to ensure the connection between the air inlet, the air outlet and the air pressure detection port and the closed cavity, so as to ensure the normal cooperation between the structures.
  • the detection component further includes a control unit
  • the control unit is connected to the control end of the inflatable element, and is used to control the start and stop of the inflatable element; and/or, the control unit is connected to the signal end of the detection element for receiving the detection element The detected air pressure data in the closed cavity.
  • the detection components In addition to the inflatable components and detection components that cooperate with each other, the detection components also need a control unit to achieve effective association between components.
  • the control unit can analyze the acquired air pressure data in time, and on the other hand, it can accurately control the start and stop of the inflatable components. .
  • control unit is further configured to determine whether the closed cavity is leaking according to the air pressure data; and/or,
  • control unit is also used to issue a warning signal when the closed cavity leaks, and/or the control unit is also used to control the gas filling element to fill the closed cavity with gas to ensure that the closed cavity is filled with gas.
  • the air pressure in the closed cavity is maintained within a preset air pressure range.
  • control unit After the control unit obtains the air pressure data, it analyzes whether the closed cavity is leaking in time. If it is, it will remind the user in time through the warning signal, so that the electrical connection device can be repaired in time, so as to prevent the vehicle from breaking down when wading in the water, and ensure the safety of driving. In addition, after the air leakage is detected, in order to avoid the safety of driving caused by the failure to repair in time, the control unit further controls the inflatable element to continuously fill the closed cavity with gas, and continuously fills the dry and clean air into the closed cavity, so as to ensure the safety of driving. To ensure the positive pressure in the closed cavity, prevent foreign objects such as moist air, dust, water, etc. from entering the connector cavity in rainy days, and play a certain role in active protection.
  • a sealing ring is provided on the air hole.
  • the air hole is provided with a sealing ring to ensure the air tightness of the detection component and the fixing seat of the vehicle end electrical connection device.
  • the detection component further includes an installation housing, the installation housing has an installation accommodating cavity recessed toward the interior of the installation housing, and the inflatable element, the detection element and the control unit are accommodated. in the installation accommodating cavity;
  • the detection component is connected to the fixed seat through the mounting housing.
  • each element of the detection component is encapsulated in the installation housing, which protects each component, is safe and reliable, does not affect the structure of the quick-change connector, and at the same time ensures that the detection component is not affected by the external environment such as water, dust, etc. Influence, improve the structural safety of inspection components.
  • the air inlet of the inflatable element is connected to an air intake pipe, and the air intake pipe extends to the outside of the installation housing;
  • the control unit includes a signal output terminal, and the signal output terminal is used for communicating with the vehicle-end controller or an external controller.
  • control unit is also provided with a signal output terminal, which is convenient to connect with the external controller, thereby realizing the control of the detection component by the external controller.
  • the mounting shell is also provided with a via hole
  • the air intake pipe extends to the outside of the installation housing through the through hole; and/or, the signal output end is connected to a signal wire, and the signal wire extends through the through hole to the outside of the installation housing;
  • the outside of the installation casing is connected in communication with the vehicle end controller.
  • the air intake pipe is connected with the inflatable element, and the signal line is connected with the control element.
  • the setting of the via hole can play a certain role in the installation of the components inside the installation shell, which is convenient for the positioning and installation of the charging element and the control element, and also facilitates the installation of the air intake pipe and the control element.
  • the signal line is connected to the outside.
  • the inflatable element is a motor air pump.
  • the positive improvement effect of the present invention is: in order to solve the defect that the sealing performance of the closed cavity after the battery terminal electrical connection device and the vehicle end electrical connection device are matched, the closed cavity is filled with air and the air pressure data is analyzed by filling air into the closed cavity. Monitoring can effectively, actively and quickly judge the tightness of the connector, and further improve the safety of driving.
  • FIG. 1 is a flow chart of a method for airtight detection of an electrical connector according to Embodiment 1 of the present invention.
  • FIG. 2 is a flowchart of step 20 in the air tightness detection method of the electrical connector according to Embodiment 2 of the present invention.
  • FIG. 3 is a flow chart of an airtight detection method for an electrical connector according to Embodiment 2 of the present invention.
  • FIG. 4 is a flow chart of step 20 in the method for detecting airtightness of an electrical connector according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic structural diagram of an electrical connector according to Embodiment 4 of the present invention.
  • FIG. 6 is a schematic diagram of a partially disassembled structure of the vehicle-end electrical connection device according to Embodiment 4 of the present invention.
  • FIG. 7 is a schematic diagram of part of the internal structure of the vehicle-end electrical connection device according to Embodiment 4 of the present invention.
  • FIG. 8 is a schematic diagram of the installation structure of the vehicle-end electrical connection device according to Embodiment 4 of the present invention.
  • the electrical connector comprises a vehicle-end electrical connection device and a battery-end electrical connection device that cooperate with each other to realize electrical connection.
  • the vehicle-end electrical connection device has an annular sealing ring, and the vehicle-end electrical connection device When cooperating with the battery end electrical connection device to achieve electrical connection, the annular sealing ring is respectively connected to the mating ends of the vehicle end electrical connection device and the battery end electrical connection device to form a closed cavity, and the air tightness detection method is used to detect whether the closed cavity leaks.
  • the air tightness detection method includes:
  • Step 10 filling the closed cavity with a preset volume of gas
  • Step 20 Detect the air pressure in the closed cavity, and determine whether the closed cavity is leaking according to the air pressure.
  • the sealing performance of the closed cavity after the battery terminal electrical connection device and the vehicle terminal electrical connection device are matched is easy to fail.
  • the closed cavity is filled with air and the air pressure data is monitored, and the closed cavity is increased by active inflation.
  • the air pressure inside the body can accelerate the change of the air pressure when the air leaks, so that the tightness of the connector can be judged effectively, actively and quickly, and the safety of driving is further improved.
  • step 20 specifically includes:
  • Step 211 detecting the air pressure in the closed cavity at the first moment to obtain a first air pressure value
  • Step 212 comparing the first air pressure value with a preset standard air pressure value to obtain a first comparison result
  • Step 213 judging whether the closed cavity is leaking according to the first comparison result
  • step 213 specifically includes:
  • Step 2131 Determine whether the first comparison result is within the first preset range, if yes, go to Step 2132, if not, go to Step 2132;
  • Step 2132 confirming that the closed cavity is not leaking air
  • Step 2133 confirming that the closed cavity is leaking.
  • the air tightness detection method further includes:
  • Step 30 issue a warning signal
  • Step 40 Filling the closed cavity with gas to ensure that the air pressure in the closed cavity is kept within a preset pressure range. It should be noted that, steps 30 and 40 have no obvious sequence relationship, and may also be performed at the same time.
  • the comparison result is obtained by comparing the real-time air pressure value with the standard air pressure value, and based on the comparison result, it is further determined whether the closed cavity is leaking. Within a preset range instead of comparing with a certain value, misjudgment caused by the impact of bumps in the vehicle running on the air pressure in the closed cavity can be avoided. In addition, when the air leakage of the closed cavity is detected, the user is reminded in time through the warning signal, so that the electrical connection device can be repaired in time, so as to prevent the vehicle from malfunctioning when wading in the water, and ensure the safety of driving.
  • the closed cavity can be continuously filled with gas, and dry and clean air can be continuously filled into the closed cavity to ensure the positive pressure in the closed cavity and prevent moisture in rainy days. Air, dust, water and other foreign objects enter the connector cavity and play a certain role in active protection.
  • This embodiment is a further improvement on the basis of Embodiment 2.
  • another implementation manner of another step 20 is provided, which specifically includes:
  • Step 221 Detect the air pressure in the closed cavity at the first time and the second time respectively, to obtain the first air pressure value and the second air pressure value;
  • Step 222 comparing the first air pressure value with the second air pressure value to obtain a second comparison result
  • Step 223 judging whether the closed cavity is leaking according to the second comparison result
  • step 223 specifically includes:
  • Step 2231 Determine whether the second comparison result is within the second preset range, if yes, go to Step 2232, if not, go to Step 2232;
  • Step 2232 confirming that the closed cavity is not leaking air
  • Step 2233 confirming that the closed cavity is leaking.
  • the air pressure value in the sealed cavity is dynamically monitored, and the comparison result is obtained according to the air pressure change value to determine the leakage amount, and based on the comparison result, it is further determined whether the air leakage of the sealed cavity is carried out to determine the tightness of the sealed cavity.
  • the comparison result is within a preset range instead of comparing with a certain value, misjudgment caused by bumps generated by the vehicle driving and affecting the air pressure in the closed cavity can be avoided.
  • a vehicle-end electrical connection device as shown in Figure 5, the vehicle-end electrical connection device 1 has a ring-shaped sealing ring 2, when the vehicle-end electrical connection device 1 and the battery-end electrical connection device 3 cooperate to achieve electrical connection, the annular The sealing ring 2 is respectively connected to the mating ends of the vehicle end electrical connection device 1 and the battery end electrical connection device 3 to form a closed cavity, and the vehicle end electrical connection device 1 includes a detection component 4;
  • the detection component 4 is installed on the vehicle-end electrical connection device 1 and communicated with the closed cavity; specifically, the detection component 4 can be installed on the outer side of the vehicle-end electrical connection device 1 , so as to be free from the vehicle-end electrical connection device 1 Of course, when there is enough installation space inside the vehicle-end electrical connection device 1 , the detection component 4 can also be selected to be installed inside the vehicle-end electrical connection device 1 .
  • the detection component 4 is used to implement the airtight detection method of the electrical connector described in any one of Embodiments 1-3.
  • the detection component 4 includes an inflatable element 41 and a detection element 42 ; the inflatable element 41 is a motor air pump.
  • the inflatable element 41 includes an air inlet 411 and an air outlet 412, the air inlet 411 communicates with the external air, and the air outlet 412 communicates with the closed cavity;
  • the detection element 42 includes an air pressure detection port 421, and the air pressure detection port 421 communicates with the closed cavity;
  • the inflation element 41 is used to inflate the closed cavity
  • the detection element 42 is used to detect the air pressure in the closed cavity.
  • the detection component 4 includes an inflatable element 41 and a detection element 42 that cooperate with each other.
  • the inflatable element 41 inhales the external air through the air inlet 411 and fills the closed cavity through the air outlet 412 to actively increase the air inside the closed cavity. air pressure to accelerate the change of air pressure in the event of air leakage, and then the air pressure in the closed cavity is detected by the detection element 42 through the air pressure detection port 421 communicated with the closed cavity, so as to realize the monitoring of the air pressure to check the sealing performance of the closed cavity. detection.
  • the detection part 4 also includes a control unit 43;
  • the control unit 43 is connected to the control end of the inflatable element 41 for controlling the start and stop of the inflatable element 41; and/or the control unit 43 is connected to the signal end of the detection element 42 for receiving the detection element 42 in the closed cavity air pressure data.
  • the control unit 43 After receiving the air pressure data, the control unit 43 is also used to judge whether the closed cavity is leaking according to the air pressure data; at the same time, the control unit 43 is also used to issue a warning signal when the closed cavity leaks; the control unit 43 is also used to control
  • the inflating element 41 inflates gas into the closed cavity to ensure that the air pressure in the closed cavity is kept within a preset air pressure range.
  • control unit 43 After the control unit 43 obtains the air pressure data, it analyzes whether the closed cavity is leaking in time, and if so, the user is reminded in time through a warning signal, so that the electrical connection device can be repaired in time to prevent the occurrence of vehicles when wading in water. In addition, after the air leakage is detected, in order to avoid the safety of driving caused by the failure to repair in time, the control unit 43 further controls the inflatable element 41 to continuously fill the closed cavity with gas, and continuously clean the dry and clean air. The air is filled into the closed cavity to ensure the positive pressure in the closed cavity and prevent foreign objects such as moist air, dust and water from entering the connector cavity in rainy days, which plays a certain role in active protection.
  • the vehicle-end electrical connection device 1 further includes a fixing base 5 .
  • the fixing base 5 is provided with two air holes 51 , and the two air holes 51 are respectively connected with the air outlet 412 and the air pressure detection port 421 .
  • the air hole 51 is provided with a sealing ring 52 .
  • the air hole 51 is provided with a sealing ring 52 to ensure the air tightness of the detection component 4 and the fixing seat 5 of the vehicle end electrical connection device 1 . It should be noted that, through the setting of the fixed seat 5, to ensure the fixed connection between the detection component 4 and the vehicle-end electrical connection device 1, the corresponding air holes 51 are provided to ensure the connection between the air inlet, air outlet and air pressure detection port and the closed cavity, To ensure the normal cooperation between the structures.
  • the detection component 4 further includes an installation housing 44 .
  • the installation housing 44 has an installation accommodating cavity which is recessed toward the interior of the installation housing 44 , and the inflatable element 41 , the detection element 42 and the control unit 43 are accommodated in the installation accommodating cavity.
  • the detection component 4 is connected to the fixed seat 5 through the mounting housing 44 . Specifically, it can be arranged outside or inside the fixing base 5 .
  • the air inlet 411 of the inflatable element 41 is connected to an air intake pipe 45, and the air intake pipe 45 extends to the outside of the installation housing 44;
  • each element of the detection part 4 is encapsulated in the installation housing 44, which protects each element, is safe and reliable, does not affect the structure of the quick-change connector, and at the same time ensures that the detection part 4 does not Affected by the external environment such as water, dust, etc., the structural safety of the detection part 4 is improved.
  • the installation housing 44 is also provided with a via hole; the air intake pipe 45 extends through the via hole to the outside of the installation housing 44; the signal output end is connected to a signal wire 46, and the signal wire 46 extends through the via hole to the installation housing
  • the outside of 44 is connected to the vehicle-end controller for communication.
  • the control unit 43 includes a signal output terminal, and the signal output terminal is used for communication connection with the vehicle-end controller or an external controller. It is convenient to connect with an external controller, thereby realizing the control of the detection component 4 by the external controller.
  • the arrangement of the through hole can also play a certain role in positioning the installation of the inflatable element 41 and the control element 43.
  • the intake pipe 45 is connected to the inflatable element 41 through the through hole, and the position of the intake pipe 45 can locate the inflatable element 41 during installation.
  • the installation position in the housing 44 is convenient for the installation and fixation of the inflatable element 41 .
  • the sealing performance of the closed cavity after the battery terminal electrical connection device and the vehicle terminal electrical connection device are matched is likely to fail.
  • This solution can effectively, actively, and quickly fill the closed cavity with air and monitor the air pressure data. Judge the tightness of the connector to further improve the safety of driving.

Abstract

本发明公开了一种电连接器的气密检测方法及车端电连接装置，所述电连接器包括相互配合实现电连接的车端电连接装置和电池端电连接装置，所述车端电连接装置具有一圈环形密封圈，所述车端电连接装置和所述电池端电连接装置配合实现电连接时，环形密封圈分别连接所述车端电连接装置和所述电池端电连接装置的配合端以形成封闭腔体，所述气密检测方法用于检测所述封闭腔体是否漏气，包括：向所述封闭腔体内充入预设体积的气体；检测所述封闭腔体内的气压，并根据所述气压判断所述封闭腔体是否漏气。本申请通过向封闭腔体充入空气并对气压数据进行监控，能够有效、主动、快速判断连接器的密封性，进一步提高行车的安全性。

Description

电连接器的气密检测方法及车端电连接装置
本申请要求申请日为2020/9/30的中国专利申请2020110615332的优先权。本申请引用上述中国专利申请的全文。
技术领域
本发明属于换电设备的智能检测领域，特别涉及一种电连接器的气密检测方法及车端电连接装置。
背景技术
为了行车安全，电动汽车对电连接器的密封性有严格的要求，换电版的电动汽车由于电池经常拆装，每次拆装都会拉扯到用于密封汽车端和电池端的电连接器的密封圈，密封圈经多次拉扯后，容易导致密封效果下降，引起行车的不安全性，而目前的换电连接器是无法实现每次换电后的密封性检测的，其存在极大的安全隐患。
2020年7月7日公开的中国发明专利CN201811642277.9公开了一种电连接器，该电连接器为快换连接器的电池端连接部件，用于与电池包连接，该电连接器上设有一密封检测装置，检测的是该电连接器和车端电连接器对接电连接后形成的腔体内的气压，但是该腔体较小，内部气压的初始值原本就较小，因此如果电连接器因密封件老化导致漏气时，检测到的腔体内的气压变化并不会太大，因而使得检测灵敏度大大折扣。
发明内容
本发明要解决的技术问题是为了克服现有技术中换电连接器是无法对密封性自动检测导致存在安全隐患的缺陷，提供一种电连接器的气密检测方法及车端电连接装置。
本发明是通过下述技术方案来解决上述技术问题：
一种电连接器的气密检测方法，所述电连接器包括相互配合实现电连接的车端电连接装置和电池端电连接装置，所述车端电连接装置具有一圈环形密封圈，所述车端电连接装置和所述电池端电连接装置配合实现电连接时，环形密封圈分别连接所述车端电连接装置和所述电池端电连接装置的配合端以形成封闭腔体，所述气密检测方法用于检测所述封闭腔体是否漏气，包括：
向所述封闭腔体内充入预设体积的气体；
检测所述封闭腔体内的气压，并根据所述气压判断所述封闭腔体是否漏气。
电池端电连接装置和车端电连接装置配合后的封闭腔体的密封性容易失效，本方案通过向封闭腔体充入空气并对气压数据进行监控，通过主动充气增加封闭腔体内部的气压，以在漏气时加速气压的变化，以便能够有效、主动、快速判断连接器的密封性，进一步提高行车的安全性。
较佳地，所述检测所述封闭腔体内的气压，并根据所述气压判断所述封闭腔体是否漏气的步骤具体包括：
在第一时刻检测所述封闭腔体内气压以获取第一气压值；
对比所述第一气压值和预设的标准气压值以获取比对结果；
根据所述比对结果判断所述封闭腔体是否漏气；
或者，
分别在第一时刻和第二时刻检测所述封闭腔体内气压，以获取第一气压值和第二气压值；
对比所述第一气压值和所述第二气压值以获取比对结果；
根据所述比对结果判断所述封闭腔体是否漏气。
通过将实时的气压值与标准气压值进行比较得到比较结果，或者动态的监控密封腔体内的气压值，根据气压变化值得到比较结果，基于比较结果进 一步判断封闭腔体是否漏气，检测方法方便、快捷、直接又精准。
较佳地，所述根据所述比对结果判断所述封闭腔体是否漏气的步骤具体包括：
判断所述比对结果是否在预设范围内，若是则所述封闭腔体未漏气，若否则所述封闭腔体漏气。
通过判断比对结果是否在预设范围内而非与一确定值进行比较，可以避免由于车辆行驶产生颠簸影响封闭腔体内气压导致的误判。较佳地，在判断所述封闭腔体漏气后，所述气密检测方法还包括：
发出警示信号；
和/或，
向所述封闭腔体内充入气体，以确保所述封闭腔体内的气压保持在预设气压范围内。
当检测到封闭腔体漏气后，通过警示信号及时提醒用户，以能够及时对电连接器件进行及时维修，防止后续涉水时车辆发生故障，确保行车的安全性，另外，在检测到漏气后，为避免不能及时维修引发行车的安全，可以进一步对封闭腔体持续充入气体，不断将干燥洁净的空气充进封闭腔体，以确保封闭腔体内的正压，防止雨天的潮湿空气、粉尘、水等异物进入连接器腔体，起到一定的主动防护的作用。
一种车端电连接装置，所述车端电连接装置具有一圈环形密封圈，所述车端电连接装置和电池端电连接装置配合实现电连接时，环形密封圈分别连接所述车端电连接装置和所述电池端电连接装置的配合端以形成封闭腔体，所述车端电连接装置包括检测部件；
所述检测部件安装在所述车端电连接装置上，且与所述封闭腔体相连通；
所述检测部件用于实现上述的电连接器的气密检测方法。
检测部件安装在车端电连接装置上，对连接器配合形成的封闭腔体进行气密检测，使得电连接器根据腔体内的气压实现气密性的主动判断，能够及 时发现电连接器换电后的密封性能，进一步提高行车的安全性。
较佳地，所述检测部件包括充气元件和检测元件；
所述充气元件包括进气口和出气口，所述进气口与外部气体相通，所述出气口与所述封闭腔体相通；
所述检测元件包括气压检测口，所述气压检测口与所述封闭腔体相通；
所述充气元件用于向所述封闭腔体充气，所述检测元件用于检测所述封闭腔体内的气压。
检测部件包含互相配合的充气元件和检测元件，充气元件通过进气口吸入外部的空气并经出气口充入封闭腔体，主动增加封闭腔体内部的气压，以在漏气时加速气压的变化，然后由检测元件通过与所述封闭腔体相通的气压检测口检测封闭腔体内的气压，进而实现对气压的监测以对封闭腔体的密封性能进行检测。
较佳地，所述车端电连接装置包括固定座，所述固定座上开设有两个气孔，两个所述气孔分别与所述出气口和所述气压检测口相连通。
通过固定座的设置，以确保检测部件与车端电连接装置的固定连接，对应设置的气孔以确保进、出气口和气压检测口与封闭腔体的连通，保证结构之间的正常配合。
较佳地，所述检测部件还包括控制单元；
所述控制单元与所述充气元件的控制端相连，用于控制所述充气元件的启停；和/或，所述控制单元与所述检测元件的信号端相连，用于接收所述检测元件检测到的所述封闭腔体内的气压数据。
检测部件除了互相配合的充气元件和检测元件，还需要控制单元实现各元件间的有效关联，控制单元一方面能够及时对获取的气压数据进行分析，另一方面能够精准的控制充气元件的启停。
较佳地，所述控制单元在接收到所述气压数据后，还用于根据所述气压数据判断所述封闭腔体是否漏气；和/或，
同时所述控制单元还用于在所述封闭腔体漏气时，发出警示信号，和/或，所述控制单元还用于控制所述充气元件向所述封闭腔体内充入气体，以确保所述封闭腔体内的气压保持在预设气压范围内。
控制单元获取到气压数据后及时分析封闭腔体是否漏气，若是，则通过警示信号及时提醒用户，以能够及时对电连接器件进行及时维修，防止后续涉水时车辆发生故障，确保行车的安全性，另外，在检测到漏气后，为避免不能及时维修引发行车的安全，控制单元还进一步控制充气元件对封闭腔体持续充入气体，不断将干燥洁净的空气充进封闭腔体，以确保封闭腔体内的正压，防止雨天的潮湿空气、粉尘、水等异物进入连接器腔体，起到一定的主动防护的作用。
较佳地，所述气孔上设有密封圈。
气孔上通过设置密封圈保证检测部件与车端电连接装置的固定座的气密性。
较佳地，所述检测部件还包括安装壳体，所述安装壳体具有一向所述安装壳体的内部凹陷的安装容纳腔，所述充气元件、所述检测元件和所述控制单元被收容于所述安装容纳腔内；
所述检测部件通过所述安装壳体连接至所述固定座上。
通过安装壳体的设置，检测部件的各元件封装在安装壳体中，对各元件进行防护，安全可靠，不影响快换连接器结构，同时确保检测部件不受外部环境比如水、尘土等的影响，提高检测部件的结构安全性。
较佳地，所述充气元件的进气口连接一进气管，所述进气管伸出至所述安装壳体的外部；
和/或，
所述控制单元包括一信号输出端，所述信号输出端用于和车端控制器或外部控制器通信连接。
通过进气管方便有效的使得外部气体充入封闭腔体，另外，控制单元还 设有信号输出端，方便与外部控制器连接，进而实现外部控制器对检测部件的控制。
较佳地，所述安装壳体上还开设有过孔；
所述进气管穿过所述过孔伸出至所述安装壳体的外部；和/或，所述信号输出端连接一信号线，所述信号线穿过所述过孔伸出至所述安装壳体的外部与所述车端控制器通信连接。
进气管与充气元件连接，信号线与控制元件连接，过孔的设置能对安装壳体内部的元件的安装起到一定的定位作用，便于充电元件和控制元件的定位安装，也便于进气管和信号线与外部连接。
较佳地，所述充气元件为电机气泵。
为降低成本，充气元件选取常规的电机气泵。
本发明的积极进步效果在于：本申请为解决电池端电连接装置和车端电连接装置配合后的封闭腔体的密封性容易失效的缺陷，通过向封闭腔体充入空气并对气压数据进行监控，能够有效、主动、快速判断连接器的密封性，进一步提高行车的安全性。
附图说明
图1为本发明实施例1的电连接器的气密检测方法的流程图。
图2为本发明实施例2的电连接器的气密检测方法中步骤20的流程图。
图3为本发明实施例2的电连接器的气密检测方法的流程图。
图4为本发明实施例3的电连接器的气密检测方法中步骤20的流程图。
图5为本发明实施例4的电连接器的结构示意图。
图6为本发明实施例4的车端电连接装置的部分拆分结构示意图。
图7为本发明实施例4的车端电连接装置的部分内部结构示意图。
图8为本发明实施例4的车端电连接装置的安装结构示意图。
具体实施方式
下面通过实施例的方式进一步说明本发明，但并不因此将本发明限制在所述的实施例范围之中。
实施例1
一种电连接器的气密检测方法，电连接器包括相互配合实现电连接的车端电连接装置和电池端电连接装置，车端电连接装置具有一圈环形密封圈，车端电连接装置和电池端电连接装置配合实现电连接时，环形密封圈分别连接车端电连接装置和电池端电连接装置的配合端以形成封闭腔体，气密检测方法用于检测封闭腔体是否漏气，如图1所示，气密检测方法包括：
步骤10、向封闭腔体内充入预设体积的气体；
步骤20、检测封闭腔体内的气压，并根据气压判断封闭腔体是否漏气。
本实施中，电池端电连接装置和车端电连接装置配合后的封闭腔体的密封性容易失效，本方案通过向封闭腔体充入空气并对气压数据进行监控，通过主动充气增加封闭腔体内部的气压，以在漏气时加速气压的变化，以便能够有效、主动、快速判断连接器的密封性，进一步提高行车的安全性。
实施例2
本实施例是在实施例1的基础上进一步改进，如图2所示，步骤20具体包括：
步骤211、在第一时刻检测封闭腔体内气压以获取第一气压值；
步骤212、对比第一气压值和预设的标准气压值以获取第一比对结果；
步骤213、根据第一比对结果判断封闭腔体是否漏气；
其中，步骤213具体包括：
步骤2131、判断第一比对结果是否在第一预设范围内，若是，则执行步骤2132，若否，则执行步骤2132；
步骤2132、确认封闭腔体未漏气；
步骤2133、确认封闭腔体漏气。
本实施例中，步骤20之后，如图3所示，所述气密检测方法还包括：
步骤30、发出警示信号；
步骤40、向封闭腔体内充入气体，以确保封闭腔体内的气压保持在预设气压范围内。需要说明的是，步骤30和40没有明显的先后关系，也可以同时进行。
本实施例中，通过将实时的气压值与标准气压值进行比较得到比较结果，基于比较结果进一步判断封闭腔体是否漏气，检测方法方便、快捷、直接又精准，而且判断比对结果是否在预设范围内而非与一确定值进行比较，可以避免由于车辆行驶产生颠簸影响封闭腔体内气压导致的误判。另外，当检测到封闭腔体漏气后，通过警示信号及时提醒用户，以能够及时对电连接器件进行及时维修，防止后续涉水时车辆发生故障，确保行车的安全性，另外，在检测到漏气后，为避免不能及时维修引发行车的安全，可以进一步对封闭腔体持续充入气体，不断将干燥洁净的空气充进封闭腔体，以确保封闭腔体内的正压，防止雨天的潮湿空气、粉尘、水等异物进入连接器腔体，起到一定的主动防护的作用。
实施例3
本实施例是在实施例2的基础上进一步改进，如图4所示，提供另一种步骤20的另一种实施方式，具体包括：
步骤221、分别在第一时刻和第二时刻检测封闭腔体内气压，以获取第一气压值和第二气压值；
步骤222、对比第一气压值和第二气压值以获取第二比对结果；
步骤223、根据第二比对结果判断封闭腔体是否漏气；
其中，步骤223具体包括：
步骤2231、判断第二比对结果是否在第二预设范围内，若是，则执行步骤2232，若否，则执行步骤2232；
步骤2232、确认封闭腔体未漏气；
步骤2233、确认封闭腔体漏气。
本实施例中，动态的监控密封腔体内的气压值，根据气压变化值得到比较结果以判断泄漏量，基于比较结果进一步判断封闭腔体是否漏气，以判断封闭腔体的密封性。而且通过判断比对结果是否在预设范围内而非与一确定值进行比较，可以避免由于车辆行驶产生颠簸影响封闭腔体内气压导致的误判。
实施例4
一种车端电连接装置，如图5所示，所述车端电连接装置1具有一圈环形密封圈2，车端电连接装置1和电池端电连接装置3配合实现电连接时，环形密封圈2分别连接车端电连接装置1和电池端电连接装置3的配合端以形成封闭腔体，车端电连接装置1包括检测部件4；
检测部件4安装在车端电连接装置1上，且与封闭腔体相连通；具体地，检测部件4可以安装在车端电连接装置1外侧面上，以此不受车端电连接装置1的内部安装空间的限制；当然，在车端电连接装置1的内部具有足够的安装空间时，也可以选择将检测部件4安装在车端电连接装置1的内部。
检测部件4用于实现实施例1-3中任一项所述的电连接器的气密检测方法。
本实施例中，如图6-7所示，检测部件4包括充气元件41和检测元件42；充气元件41为电机气泵。
充气元件41包括进气口411和出气口412，进气口411与外部气体相通，出气口412与封闭腔体相通；检测元件42包括气压检测口421，气压检测口421与封闭腔体相通；
充气元件41用于向封闭腔体充气，检测元件42用于检测封闭腔体内的气压。
需要说明的是，检测部件4包含互相配合的充气元件41和检测元件42，充气元件41通过进气口411吸入外部的空气并经出气口412充入封闭腔体， 主动增加封闭腔体内部的气压，以在漏气时加速气压的变化，然后由检测元件42通过与封闭腔体相通的气压检测口421检测封闭腔体内的气压，进而实现对气压的监测以对封闭腔体的密封性能进行检测。
检测部件4还包括控制单元43；
控制单元43与充气元件41的控制端相连，用于控制充气元件41的启停；和/或，控制单元43与检测元件42的信号端相连，用于接收检测元件42检测到的封闭腔体内的气压数据。
控制单元43在接收到气压数据后，还用于根据气压数据判断封闭腔体是否漏气；同时控制单元43还用于在封闭腔体漏气时，发出警示信号；控制单元43还用于控制充气元件41向封闭腔体内充入气体，以确保封闭腔体内的气压保持在预设气压范围内。
需要说明的是，控制单元43获取到气压数据后及时分析封闭腔体是否漏气，若是，则通过警示信号及时提醒用户，以能够及时对电连接器件进行及时维修，防止后续涉水时车辆发生故障，确保行车的安全性，另外，在检测到漏气后，为避免不能及时维修引发行车的安全，控制单元43还进一步控制充气元件41对封闭腔体持续充入气体，不断将干燥洁净的空气充进封闭腔体，以确保封闭腔体内的正压，防止雨天的潮湿空气、粉尘、水等异物进入连接器腔体，起到一定的主动防护的作用。
其中，如图8所示，车端电连接装置1还包括固定座5，固定座5上开设有两个气孔51，两个气孔51分别与出气口412和气压检测口421相连通。气孔51上设有密封圈52。气孔51上通过设置密封圈52保证检测部件4与车端电连接装置1的固定座5的气密性。需要说明的是，通过固定座5的设置，以确保检测部件4与车端电连接装置1的固定连接，对应设置的气孔51以确保进、出气口和气压检测口与封闭腔体的连通，保证结构之间的正常配合。
参见图6-7，检测部件4还包括安装壳体44，安装壳体44具有一向安 装壳体44的内部凹陷的安装容纳腔，充气元件41、检测元件42和控制单元43被收容于安装容纳腔内；检测部件4通过安装壳体44连接至固定座5上。具体的，可以设置在固定座5外侧或内部。
充气元件41的进气口411连接一进气管45，进气管45伸出至安装壳体44的外部；
需要说明的是，通过安装壳体44的设置，检测部件4的各元件封装在安装壳体44中，对各元件进行防护，安全可靠，不影响快换连接器结构，同时确保检测部件4不受外部环境比如水、尘土等的影响，提高检测部件4的结构安全性。
安装壳体44上还开设有过孔；进气管45穿过过孔伸出至安装壳体44的外部；信号输出端连接一信号线46，信号线46穿过过孔伸出至安装壳体44的外部与车端控制器通信连接。控制单元43包括一信号输出端，信号输出端用于和车端控制器或外部控制器通信连接。方便与外部控制器连接，进而实现外部控制器对检测部件4的控制。过孔的设置还能对充气元件41和控制元件43的安装起到一定的定位作用，例如，进气管45穿过过孔与充气元件41连接，进气管45的位置可以定位充气元件41在安装壳体44内的安装位置，以便于充气元件41的安装固定。
本实施中，电池端电连接装置和车端电连接装置配合后的封闭腔体的密封性容易失效，本方案通过向封闭腔体充入空气并对气压数据进行监控，能够有效、主动、快速判断连接器的密封性，进一步提高行车的安全性。
虽然以上描述了本发明的具体实施方式，但是本领域的技术人员应当理解，这些仅是举例说明，在不背离本发明的原理和实质的前提下，可以对这些实施方式做出多种变更或修改。因此，本发明的保护范围由所附权利要求书限定。

Claims (14)

  1. 一种电连接器的气密检测方法，所述电连接器包括相互配合实现电连接的车端电连接装置和电池端电连接装置，所述车端电连接装置具有一圈环形密封圈，所述车端电连接装置和所述电池端电连接装置配合实现电连接时，环形密封圈分别连接所述车端电连接装置和所述电池端电连接装置的配合端以形成封闭腔体，所述气密检测方法用于检测所述封闭腔体是否漏气，其特征在于，包括：
    向所述封闭腔体内充入预设体积的气体；
    检测所述封闭腔体内的气压，并根据所述气压判断所述封闭腔体是否漏气。
  2. 如权利要求1所述的电连接器的气密检测方法，其特征在于，所述检测所述封闭腔体内的气压，并根据所述气压判断所述封闭腔体是否漏气的步骤具体包括：
    在第一时刻检测所述封闭腔体内气压以获取第一气压值；
    对比所述第一气压值和预设的标准气压值以获取比对结果；
    根据所述比对结果判断所述封闭腔体是否漏气；
    或者，
    分别在第一时刻和第二时刻检测所述封闭腔体内气压，以获取第一气压值和第二气压值；
    对比所述第一气压值和所述第二气压值以获取比对结果；
    根据所述比对结果判断所述封闭腔体是否漏气。
  3. 如权利要求2所述的电连接器的气密检测方法，其特征在于，所述根据所述比对结果判断所述封闭腔体是否漏气的步骤具体包括：
    判断所述比对结果是否在预设范围内，若是则所述封闭腔体未漏气，若否则所述封闭腔体漏气。
  4. 如权利要求1-3中至少一项所述的电连接器的气密检测方法，其特征在于，在判断所述封闭腔体漏气后，所述气密检测方法还包括：
    发出警示信号；
    和/或，
    向所述封闭腔体内充入气体，以确保所述封闭腔体内的气压保持在预设气压范围内。
  5. 一种车端电连接装置，所述车端电连接装置具有一圈环形密封圈，所述车端电连接装置和电池端电连接装置配合实现电连接时，环形密封圈分别连接所述车端电连接装置和所述电池端电连接装置的配合端以形成封闭腔体，其特征在于，所述车端电连接装置包括检测部件；
    所述检测部件安装在所述车端电连接装置上，且与所述封闭腔体相连通；
    所述检测部件用于实现权利要求1-4中至少一项所述的电连接器的气密检测方法。
  6. 如权利要求5所述的车端电连接装置，其特征在于，所述检测部件包括充气元件和检测元件；
    所述充气元件包括进气口和出气口，所述进气口与外部气体相通，所述出气口与所述封闭腔体相通；
    所述检测元件包括气压检测口，所述气压检测口与所述封闭腔体相通；
    所述充气元件用于向所述封闭腔体充气，所述检测元件用于检测所述封闭腔体内的气压。
  7. 如权利要求6所述的车端电连接装置，其特征在于，所述车端电连接装置包括固定座，所述固定座上开设有两个气孔，两个所述气孔分别与所述出气口和所述气压检测口相连通。
  8. 如权利要求6-7中至少一项所述的车端电连接装置，其特征在于，所述检测部件还包括控制单元；
    所述控制单元与所述充气元件的控制端相连，用于控制所述充气元件的 启停；和/或，所述控制单元与所述检测元件的信号端相连，用于接收所述检测元件检测到的所述封闭腔体内的气压数据。
  9. 如权利要求8所述的车端电连接装置，其特征在于，所述控制单元在接收到所述气压数据后，还用于根据所述气压数据判断所述封闭腔体是否漏气；和/或，
    同时所述控制单元还用于在所述封闭腔体漏气时，发出警示信号，和/或，所述控制单元还用于控制所述充气元件向所述封闭腔体内充入气体，以确保所述封闭腔体内的气压保持在预设气压范围内。
  10. 如权利要求7-9中至少一项所述的车端电连接装置，其特征在于，所述气孔上设有密封圈。
  11. 如权利要求8-10中至少一项所述的车端电连接装置，其特征在于，所述检测部件还包括安装壳体，所述安装壳体具有一向所述安装壳体的内部凹陷的安装容纳腔，所述充气元件、所述检测元件和所述控制单元被收容于所述安装容纳腔内；
    所述检测部件通过所述安装壳体连接至固定座上。
  12. 如权利要求11所述的车端电连接装置，其特征在于，所述充气元件的进气口连接一进气管，所述进气管伸出至所述安装壳体的外部；
    和/或，
    所述控制单元包括一信号输出端，所述信号输出端用于和车端控制器或外部控制器通信连接。
  13. 如权利要求12所述的车端电连接装置，其特征在于，所述安装壳体上还开设有过孔；
    所述进气管穿过所述过孔伸出至所述安装壳体的外部；和/或，所述信号输出端连接一信号线，所述信号线穿过所述过孔伸出至所述安装壳体的外部与所述车端控制器通信连接。
  14. 如权利要求6-13中至少一项所述的车端电连接装置，其特征在于， 所述充气元件为电机气泵。
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