CN111999592A - Circuit and device for detecting the position of disconnection point of high voltage interlock circuit - Google Patents
Circuit and device for detecting the position of disconnection point of high voltage interlock circuit Download PDFInfo
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Abstract
本发明公开了检测高压互锁回路断线点位置的电路及装置，涉及新能源汽车领域，其电路包括：电源；高压互锁电路，与电源电连接；高压互锁电路包括与电源电连接、并集成有高压互锁端子的多个高压连接器，每个高压连接器上均设有相互电连接的公端接插件和母端接插件，且多个高压连接器的公端接插件串联，每个高压连接器上的母端接插件的输入端子和母端接插件的输出端子电连接；断线点检测电路，与高压互锁电路电连接；断线点检测电路包括与电源电连接的多个断线点检测电阻，且多个断线点检测电阻与多个高压连接器的母端接插件电连接。本发明能够快速识别断线点位置，避免人工逐一插拔高压连接器确定断线点位置，提高诊断效率。
The invention discloses a circuit and a device for detecting the position of a disconnection point of a high-voltage interlocking circuit, and relates to the field of new energy vehicles. The circuit comprises: a power supply; a high-voltage interlocking circuit is electrically connected to the power supply; A plurality of high-voltage connectors with high-voltage interlocking terminals are integrated, and each high-voltage connector is provided with a male end connector and a female end connector that are electrically connected to each other, and the male end connectors of the plurality of high-voltage connectors are connected in series. The input terminal of the female terminal connector on each high-voltage connector is electrically connected with the output terminal of the female terminal connector; the disconnection point detection circuit is electrically connected with the high-voltage interlock circuit; the disconnection point detection circuit includes an electrical connection with the power supply. A plurality of disconnection point detection resistors, and the plurality of disconnection point detection resistors are electrically connected with the female terminal connectors of the plurality of high-voltage connectors. The invention can quickly identify the position of the disconnection point, avoids manually inserting and unplugging the high-voltage connectors one by one to determine the position of the disconnection point, and improves the diagnosis efficiency.
Description
技术领域technical field
本发明涉及新能源汽车领域，具体是涉及检测高压互锁回路断线点位置的电路及装置。The invention relates to the field of new energy vehicles, in particular to a circuit and a device for detecting the position of a disconnection point of a high-voltage interlock circuit.
背景技术Background technique
高压互锁回路是新能源汽车上用于检测高压连接器是否连接可靠的电路。当前新能源汽车高压互锁回路是由集成在公端高压连接器上的输入输出互锁端子、集成在母端高压连接器上的输入输出互锁端子、限流电阻构成。The high-voltage interlock circuit is a circuit used in new energy vehicles to detect whether the high-voltage connector is connected reliably. The current high-voltage interlock circuit of new energy vehicles is composed of input and output interlock terminals integrated on the male high-voltage connector, input and output interlock terminals integrated on the female high-voltage connector, and a current limiting resistor.
该电路仅能检测出高压互锁回路是否断线，各高压连接器是否接插可靠，但不能确切分辨出高压互锁回路断线点以确定发生松动的高压连接器。The circuit can only detect whether the high-voltage interlock circuit is disconnected, and whether the high-voltage connectors are connected reliably, but it cannot accurately distinguish the disconnection point of the high-voltage interlock circuit to determine the loose high-voltage connector.
一旦发生高压连接器松动导致高压互锁回路断线的情况，需逐个拔插高压连接器进行排查，排查效率十分低。Once the high-voltage connector is loosened and the high-voltage interlock circuit is disconnected, it is necessary to pull and plug the high-voltage connector one by one for investigation, and the investigation efficiency is very low.
发明内容SUMMARY OF THE INVENTION
本发明的目的是为了克服上述背景技术的不足，提供检测高压互锁回路断线点位置的电路及装置，能够快速识别断线点位置，避免人工逐一插拔高压连接器确定断线点位置，提高诊断效率。The purpose of the present invention is to overcome the deficiencies of the above-mentioned background technology, and to provide a circuit and device for detecting the position of the disconnection point of the high-voltage interlock loop, which can quickly identify the position of the disconnection point, and avoid manually inserting and unplugging the high-voltage connectors one by one to determine the position of the disconnection point. Improve diagnostic efficiency.
第一方面，提供一种检测高压互锁回路断线点位置的电路，包括：In a first aspect, a circuit for detecting the position of a disconnection point of a high-voltage interlock loop is provided, including:
电源；power supply;
高压互锁电路，与所述电源电连接；所述高压互锁电路包括与所述电源电连接、并集成有高压互锁端子的多个高压连接器，每个所述高压连接器上均设有相互电连接的公端接插件和母端接插件，且多个所述高压连接器的所述公端接插件串联，每个所述高压连接器上的所述母端接插件的输入端子和所述母端接插件的输出端子电连接；A high-voltage interlock circuit is electrically connected to the power supply; the high-voltage interlock circuit includes a plurality of high-voltage connectors that are electrically connected to the power supply and are integrated with high-voltage interlock terminals, and each of the high-voltage connectors is provided with There are male-end connectors and female-end connectors that are electrically connected to each other, and the male-end connectors of a plurality of the high-voltage connectors are connected in series, and the input terminal of the female-end connector on each of the high-voltage connectors is electrically connected to the output terminal of the female end connector;
断线点检测电路，与所述高压互锁电路电连接；所述断线点检测电路包括与所述电源电连接的多个断线点检测电阻，且多个所述断线点检测电阻与多个所述高压连接器的所述母端接插件电连接。A disconnection point detection circuit is electrically connected to the high-voltage interlock circuit; the disconnection point detection circuit includes a plurality of disconnection point detection resistors that are electrically connected to the power supply, and the plurality of disconnection point detection resistors are connected to The female terminal connectors of a plurality of the high-voltage connectors are electrically connected.
根据第一方面，在第一方面的第一种可能的实现方式中，所述高压互锁电路的两端分别设为P端和N端，所述电源的正极与所述P端电连接，所述电源的负极与所述N端电连接，多个所述断线点检测电阻均与所述N端电连接；According to the first aspect, in a first possible implementation manner of the first aspect, both ends of the high-voltage interlock circuit are respectively set as a P terminal and an N terminal, and the positive pole of the power supply is electrically connected to the P terminal, The negative pole of the power supply is electrically connected to the N terminal, and the plurality of disconnection point detection resistors are all electrically connected to the N terminal;
所述检测高压互锁回路断线点位置的电路还包括设于所述高压互锁电路的所述P端的电阻值为R的限流采样电阻，所述限流采样电阻的输入端与所述电源的正极电连接，所述限流采样电阻的输出端与所述高压互锁电路的第一个所述高压连接器电连接。The circuit for detecting the position of the disconnection point of the high-voltage interlock circuit further comprises a current-limiting sampling resistor with a resistance value of R set at the P terminal of the high-voltage interlock circuit, and the input end of the current-limiting sampling resistor is connected to the current-limiting sampling resistor. The positive pole of the power supply is electrically connected, and the output end of the current-limiting sampling resistor is electrically connected to the first high-voltage connector of the high-voltage interlock circuit.
根据第一方面的第一种可能的实现方式，在第一方面的第二种可能的实现方式中，还包括：According to the first possible implementation manner of the first aspect, in the second possible implementation manner of the first aspect, further includes:
阻值检测模块，所述阻值检测模块的两端分别与所述P端和所述N端一一对应电连接，用于检测所述P端和所述N端之间的PN端电阻值RPN，且所述断线点检测电阻处于所述P端和所述N端之间；A resistance value detection module, two ends of the resistance value detection module are respectively electrically connected with the P terminal and the N terminal in a one-to-one correspondence, for detecting the resistance value of the PN terminal between the P terminal and the N terminal R PN , and the disconnection point detection resistor is located between the P terminal and the N terminal;
信号处理模块，与所述阻值检测模块电连接，用于接收所述PN端电阻值RPN、并将所述PN端电阻值RPN与预设电阻值进行比对、以得出高压互锁回路断线点位置的分析结果。The signal processing module is electrically connected with the resistance value detection module, and is used for receiving the PN terminal resistance value R PN and comparing the PN terminal resistance value R PN with the preset resistance value to obtain the high voltage mutual Analysis results of the location of the breakpoint of the lock loop.
根据第一方面的第二种可能的实现方式，在第一方面的第三种可能的实现方式中，当所述阻值检测模块检测到RPN＝R时，所述信号处理模块给出的分析结果为所有的所述高压连接器连接正常；According to the second possible implementation manner of the first aspect, in the third possible implementation manner of the first aspect, when the resistance value detection module detects that R PN =R, the signal processing module provides The analysis result is that all the high-voltage connectors are connected normally;
当所述阻值检测模块检测到RPN为无穷大时，所述信号处理模块给出的分析结果为第一个所述高压连接器连接故障；When the resistance value detection module detects that R PN is infinite, the analysis result given by the signal processing module is the first connection failure of the high-voltage connector;
当所述阻值检测模块检测到
根据第一方面的第一种可能的实现方式，在第一方面的第四种可能的实现方式中，还包括：According to the first possible implementation manner of the first aspect, the fourth possible implementation manner of the first aspect further includes:
电压检测模块，设于所述高压互锁电路的所述P端、并与所述限流采样电阻并联，用于检测所述限流采样电阻的电压值UR；a voltage detection module, arranged at the P terminal of the high-voltage interlock circuit and connected in parallel with the current-limiting sampling resistor, for detecting the voltage value UR of the current-limiting sampling resistor ;
信号分析模块，与所述电压检测模块电连接，用于接收所述限流采样电阻的所述电压值UR、并将所述电压值UR与预设电压值进行比对、以得到高压互锁回路断线点位置的分析结果。A signal analysis module, electrically connected to the voltage detection module, for receiving the voltage value UR of the current-limiting sampling resistor , and comparing the voltage value UR with a preset voltage value to obtain a high voltage Analysis results of the location of the break point of the interlock loop.
根据第一方面的第四种可能的实现方式，在第一方面的第五种可能的实现方式中，当所述电压检测模块检测到UR＝U时，所述信号分析模块得到的分析结果为所有的所述高压连接器连接正常，其中，U为电源的电压值；According to a fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, when the voltage detection module detects that U R =U, the analysis result obtained by the signal analysis module All the high-voltage connectors are connected normally, wherein U is the voltage value of the power supply;
当所述电压检测模块检测到UR为0时，所述信号分析模块得到的分析结果为第一个所述高压连接器连接故障；When the voltage detection module detects that UR is 0, the analysis result obtained by the signal analysis module is the first connection failure of the high-voltage connector;
当所述电压检测模块检测到
根据第一方面，在第一方面的第六种可能的实现方式中，在S个依次串联的所述高压连接器中，第i个所述高压连接器的所述公端接插件的输出端子与第i+1个所述高压连接器的所述公端接插件的输入端子电连接，其中S为所述高压互锁电路中所述高压连接器的总数量，i为大于等于1、且小于等于S的整数。According to the first aspect, in a sixth possible implementation manner of the first aspect, in the S high-voltage connectors connected in series in sequence, the output terminal of the male connector of the i-th high-voltage connector is electrically connected to the input terminal of the male connector of the i+1th high-voltage connector, wherein S is the total number of the high-voltage connectors in the high-voltage interlock circuit, i is greater than or equal to 1, and An integer less than or equal to S.
根据第一方面的第六种可能的实现方式，在第一方面的第七种可能的实现方式中，每个所述高压连接器的所述公端接插件的输入端子与所述母端接插件的输入端子电连接，所述公端接插件的输出端子与所述母端接插件的输出端子电连接；或，According to a sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the input terminal of the male end connector of each of the high-voltage connectors is connected to the female end The input terminal of the plug-in is electrically connected, and the output terminal of the male-end connector is electrically connected with the output terminal of the female-end connector; or,
每个所述高压连接器的所述公端接插件的输入端子与所述母端接插件的输出端子电连接，所述公端接插件的输出端子与所述母端接插件的输入端子电连接。The input terminal of the male connector of each of the high-voltage connectors is electrically connected with the output terminal of the female connector, and the output terminal of the male connector is electrically connected to the input terminal of the female connector. connect.
根据第一方面，在第一方面的第八种可能的实现方式中，各所述高压连接器的所述母端接插件的输入端子均通过所述断线点检测电阻接地；According to the first aspect, in an eighth possible implementation manner of the first aspect, the input terminals of the female terminal connectors of each of the high-voltage connectors are grounded through the disconnection point detection resistor;
各所述断线点检测电阻至多与一个所述高压连接器的所述母端接插件电连接。Each of the disconnection point detection resistors is electrically connected to at most one of the female terminal connectors of the high-voltage connector.
第二方面，提供一种检测高压互锁回路断线点位置的装置，包括如上述的检测高压互锁回路断线点位置的电路。In a second aspect, a device for detecting the position of a disconnection point of a high-voltage interlock loop is provided, including the above-mentioned circuit for detecting the position of a disconnection point of a high-voltage interlock circuit.
与现有技术相比，本发明能够快速识别断线点位置，避免人工逐一插拔高压连接器确定断线点位置，提高诊断效率。Compared with the prior art, the present invention can quickly identify the position of the disconnection point, avoid manually inserting and unplugging the high-voltage connectors one by one to determine the position of the disconnection point, and improve the diagnosis efficiency.
附图说明Description of drawings
图1是本发明检测高压互锁回路断线点位置的电路一个实施例的示意图；1 is a schematic diagram of an embodiment of a circuit for detecting the position of a disconnection point of a high-voltage interlock loop according to the present invention;
图2是高压互锁回路电气原理图；Figure 2 is the electrical schematic diagram of the high-voltage interlock circuit;
图3是本发明检测高压互锁回路断线点位置的电路另一实施例的示意图；3 is a schematic diagram of another embodiment of the circuit for detecting the position of the disconnection point of the high-voltage interlock loop according to the present invention;
图4是本发明检测高压互锁回路断线点位置的电路另一实施例的示意图。FIG. 4 is a schematic diagram of another embodiment of the circuit for detecting the position of the disconnection point of the high-voltage interlock loop according to the present invention.
附图说明：Description of drawings:
110、阻值检测模块；120、信号处理模块；210、电压检测模块；220、信号分析模块。110, a resistance value detection module; 120, a signal processing module; 210, a voltage detection module; 220, a signal analysis module.
具体实施方式Detailed ways
现在将详细参照本发明的具体实施例，在附图中例示了本发明的例子。尽管将结合具体实施例描述本发明，但将理解，不是想要将本发明限于所述的实施例。相反，想要覆盖由所附权利要求限定的在本发明的精神和范围内包括的变更、修改和等价物。应注意，这里描述的方法步骤都可以由任何功能块或功能布置来实现，且任何功能块或功能布置可被实现为物理实体或逻辑实体、或者两者的组合。Reference will now be made in detail to specific embodiments of the present invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with specific embodiments, it will be understood that the intention is not to limit the invention to the described embodiments. On the contrary, the intention is to cover changes, modifications and equivalents included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may all be implemented by any functional block or arrangement of functions, and that any functional block or arrangement of functions may be implemented as physical or logical entities, or a combination of both.
为了使本领域技术人员更好地理解本发明，下面结合附图和具体实施方式对本发明作进一步详细说明。In order to make those skilled in the art better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
注意：接下来要介绍的示例仅是一个具体的例子，而不作为限制本发明的实施例必须为如下具体的步骤、数值、条件、数据、顺序等等。本领域技术人员可以通过阅读本说明书来运用本发明的构思来构造本说明书中未提到的更多实施例。Note: The example to be introduced next is only a specific example, and is not intended to limit the embodiments of the present invention. It must be the following specific steps, values, conditions, data, sequences, and the like. Those skilled in the art can use the concept of the present invention to construct more embodiments not mentioned in this specification by reading this specification.
参见图1所示，本发明实施例提供一种检测高压互锁回路断线点位置的电路，包括：Referring to FIG. 1, an embodiment of the present invention provides a circuit for detecting the position of a disconnection point of a high-voltage interlock loop, including:
电源；power supply;
高压互锁电路，与电源电连接；高压互锁电路包括与电源电连接、并集成有高压互锁端子的多个高压连接器，每个高压连接器上均设有相互电连接的公端接插件和母端接插件，且多个高压连接器的公端接插件串联，每个高压连接器上的母端接插件的输入端子和母端接插件的输出端子电连接；The high-voltage interlock circuit is electrically connected to the power supply; the high-voltage interlock circuit includes a plurality of high-voltage connectors electrically connected to the power supply and integrated with high-voltage interlock terminals, and each high-voltage connector is provided with a male terminal that is electrically connected to each other. The plug-in and the female-end connector, and the male-end connectors of a plurality of high-voltage connectors are connected in series, and the input terminal of the female-end connector on each high-voltage connector is electrically connected with the output terminal of the female-end connector;
断线点检测电路，与高压互锁电路电连接；断线点检测电路包括与电源电连接的多个断线点检测电阻，且多个断线点检测电阻与多个高压连接器的母端接插件电连接。The disconnection point detection circuit is electrically connected to the high-voltage interlock circuit; the disconnection point detection circuit includes a plurality of disconnection point detection resistors electrically connected to the power supply, and the plurality of disconnection point detection resistors are connected to the female ends of the plurality of high-voltage connectors The connector is electrically connected.
具体的，目前现有的高压互锁回路电气原理图如图2所示，包括高压互锁电路和限流采样电阻。高压互锁电路包括若干个集成有高压互锁端子的高压连接器，每个高压连接器包括相互电连接的公端接插件和母端接插件，每个高压连接器的公端接插件串联，每个高压连接器的母端接插件的输入端子和母端接插件的输出端子电连接。限流采样电阻于高压连接器的公端接插件串联，起到保护电路的作用。Specifically, the electrical schematic diagram of the existing high-voltage interlock circuit is shown in FIG. 2 , including a high-voltage interlock circuit and a current-limiting sampling resistor. The high-voltage interlock circuit includes several high-voltage connectors integrated with high-voltage interlock terminals, each high-voltage connector includes a male-end connector and a female-end connector that are electrically connected to each other, and the male-end connectors of each high-voltage connector are connected in series, The input terminal of the female connector of each high voltage connector is electrically connected with the output terminal of the female connector. The current-limiting sampling resistor is connected in series with the male connector of the high-voltage connector to protect the circuit.
本实施例的检测高压互锁回路断线点位置的电路包括电源、高压互锁电路及断线点检测电路。高压互锁电路与电源电连接，高压互锁电路包括集成有高压互锁端子的多个高压连接器，每个高压连接器上均设有相互电连接的公端接插件和母端接插件，且所有的高压连接器的公端接插件串联，然后两端与电源电连接，每个高压连接器上的母端接插件的输入端子和母端接插件的输出端子电连接。其中，每个高压连接器上的母端接插件的端子并没有显著区别，此处称为输入端子和输出端子是为了便于理解。断线点检测电路与高压互锁电路电连接，断线点检测电路包括与电源电连接的多个断线点检测电阻，且多个断线点检测电阻与多个高压连接器的母端接插件电连接。The circuit for detecting the position of the disconnection point of the high-voltage interlock loop in this embodiment includes a power supply, a high-voltage interlock circuit, and a disconnection point detection circuit. The high-voltage interlock circuit is electrically connected to the power supply. The high-voltage interlock circuit includes a plurality of high-voltage connectors integrated with high-voltage interlock terminals. Each high-voltage connector is provided with a male end connector and a female end connector that are electrically connected to each other. And all the male end connectors of the high voltage connectors are connected in series, and then both ends are electrically connected to the power supply, and the input terminal of the female end connector on each high voltage connector is electrically connected to the output terminal of the female end connector. Among them, the terminals of the female connector on each high-voltage connector are not significantly different, and are referred to here as input terminals and output terminals for ease of understanding. The disconnection point detection circuit is electrically connected with the high-voltage interlock circuit. The disconnection point detection circuit includes a plurality of disconnection point detection resistors that are electrically connected to the power supply, and the plurality of disconnection point detection resistors are connected to the female terminals of the plurality of high-voltage connectors. Plug-in electrical connection.
本申请通过断线点检测电路与电源，当不同的高压连接器故障断线时，高压互锁电路的通电情况不同，电路的电阻值不同，从而能够快速识别断线点位置，避免人工逐一插拔高压连接器确定断线点位置，提高诊断效率。The application uses the disconnection point detection circuit and the power supply. When different high-voltage connectors fail to disconnect, the power-on conditions of the high-voltage interlock circuit are different, and the resistance values of the circuits are different, so that the location of the disconnection point can be quickly identified, and manual insertion one by one can be avoided. Pull out the high-voltage connector to determine the position of the disconnection point to improve the diagnosis efficiency.
可选地，在本发明另外的实施例中，在S个依次串联的高压连接器中，第i个高压连接器的公端接插件的输出端子与第i+1个高压连接器的公端接插件的输入端子电连接，其中S为高压互锁电路中高压连接器的总数量，i为大于等于1、且小于等于S的整数。Optionally, in another embodiment of the present invention, in the S high-voltage connectors connected in series, the output terminal of the male end connector of the i-th high-voltage connector is connected to the male end of the i+1-th high-voltage connector. The input terminals of the connector are electrically connected, wherein S is the total number of high-voltage connectors in the high-voltage interlock circuit, and i is an integer greater than or equal to 1 and less than or equal to S.
具体的，如图1所示，11、21、31……n1为高压连接器的公端接插件，12、22、32……n2为高压连接器的母端接插件，A1、A2、A3……An为公端接插件高压互锁端子输入点，B1、B2、B3……Bn为公端接插件高压互锁端子输出点，a1、a2、a3……an为母端接插件高压互锁端子输入点，b1、b2、b3……bn为母端接插件高压互锁端子输出点。高压连接器的公端接插件依次串联，其中第i个高压连接器的公端接插件的输出端子与第i+1个高压连接器的公端接插件的输入端子电连接。如图1所示，公端接插件11的输出端子B1与公端接插件21的输入端子A2连接。Specifically, as shown in Figure 1, 11, 21, 31...n1 are the male end connectors of the high-voltage connector, 12, 22, 32...n2 are the female end connectors of the high-voltage connector, A1, A2, A3 ...An is the input point of the high voltage interlock terminal of the male end connector, B1, B2, B3...Bn is the output point of the high voltage interlock terminal of the male end connector, a1, a2, a3...an is the high voltage interlock terminal of the female end connector The input points of the lock terminal, b1, b2, b3... bn are the output points of the high-voltage interlock terminal of the female terminal connector. The male connectors of the high-voltage connectors are connected in series in sequence, wherein the output terminal of the male connector of the i-th high-voltage connector is electrically connected to the input terminal of the male connector of the i+1-th high-voltage connector. As shown in FIG. 1 , the output terminal B1 of the
可选地，在本发明另外的实施例中，每个所述高压连接器的所述公端接插件的输入端子与所述母端接插件的输入端子电连接，所述公端接插件的输出端子与所述母端接插件的输出端子电连接；或，Optionally, in another embodiment of the present invention, the input terminal of the male end connector of each of the high-voltage connectors is electrically connected to the input terminal of the female end connector, and the male end connector The output terminal is electrically connected to the output terminal of the female connector; or,
每个所述高压连接器的所述公端接插件的输入端子与所述母端接插件的输出端子电连接，所述公端接插件的输出端子与所述母端接插件的输入端子电连接。The input terminal of the male connector of each of the high-voltage connectors is electrically connected with the output terminal of the female connector, and the output terminal of the male connector is electrically connected to the input terminal of the female connector. connect.
具体的，每个高压连接器上的母端接插件的端子并没有显著区别，高压连接器的公端接插件的输入端子可以与母端接插件的输入端子电连接，也可以与母端接插件的输出端子电连接，只需要公端接插件的输入端子与母端接插件的其中一个端子电连接，公端接插件的输出端子与母端接插件的另外一个端子电连接即可。Specifically, the terminals of the female connector on each high-voltage connector are not significantly different. The input terminal of the male connector of the high-voltage connector can be electrically connected to the input terminal of the female connector, or can be connected to the female connector. The output terminal of the plug-in is electrically connected, and only the input terminal of the male terminal is required to be electrically connected to one terminal of the female terminal, and the output terminal of the male terminal to be electrically connected to the other terminal of the female terminal.
可选地，在本发明另外的实施例中，各高压连接器的母端接插件的输入端子均通过断线点检测电阻接地；Optionally, in another embodiment of the present invention, the input terminals of the female terminal connectors of each high-voltage connector are grounded through a disconnection point detection resistor;
各断线点检测电阻至多与一个高压连接器的母端接插件电连接。Each disconnection point detection resistor is electrically connected to at most one female terminal connector of a high-voltage connector.
具体的，各断线点检测电阻的一端与各高压连接器的母端接插件的输入端子或输出端子电连接，各断线点检测电阻的另一端则均接地(公共端)，例如搭接在车身上。各断线点检测电阻至多与一个高压连接器的母端接插件电连接，即多个高压连接器的母端接插件并不共同连接同一个断线点检测电阻，另外每一个高压连接器的母端接插件连接的断线点检测电阻可以是一个，也可以是多个电阻串联而成，多个电阻串联形成断线点检测电阻。Specifically, one end of each disconnection point detection resistor is electrically connected to the input terminal or output terminal of the female terminal connector of each high-voltage connector, and the other end of each disconnection point detection resistor is grounded (common end), such as overlapping on the body. Each disconnection point detection resistor is electrically connected to the female end connector of at most one high-voltage connector, that is, the female end connectors of multiple high-voltage connectors are not connected to the same disconnection point detection resistor. The disconnection point detection resistor connected to the female terminal connector may be one or a plurality of resistors connected in series, and the multiple resistors are connected in series to form a disconnection point detection resistor.
本发明另一实施例提供一种检测高压互锁回路断线点位置的电路，包括：Another embodiment of the present invention provides a circuit for detecting the position of a disconnection point of a high-voltage interlock loop, including:
电源；power supply;
高压互锁电路，与电源电连接；高压互锁电路包括与电源电连接、并集成有高压互锁端子的多个高压连接器，每个高压连接器上均设有相互电连接的公端接插件和母端接插件，且多个高压连接器的公端接插件串联，每个高压连接器上的母端接插件的输入端子和母端接插件的输出端子电连接；The high-voltage interlock circuit is electrically connected to the power supply; the high-voltage interlock circuit includes a plurality of high-voltage connectors electrically connected to the power supply and integrated with high-voltage interlock terminals, and each high-voltage connector is provided with a male terminal that is electrically connected to each other. The plug-in and the female-end connector, and the male-end connectors of a plurality of high-voltage connectors are connected in series, and the input terminal of the female-end connector on each high-voltage connector is electrically connected with the output terminal of the female-end connector;
断线点检测电路，与高压互锁电路电连接；断线点检测电路包括与电源电连接的多个断线点检测电阻，且多个断线点检测电阻与多个高压连接器的母端接插件电连接。The disconnection point detection circuit is electrically connected to the high-voltage interlock circuit; the disconnection point detection circuit includes a plurality of disconnection point detection resistors electrically connected to the power supply, and the plurality of disconnection point detection resistors are connected to the female ends of the plurality of high-voltage connectors The connector is electrically connected.
其中，高压互锁电路的两端分别设为P端和N端，电源的正极与P端电连接，电源的负极与N端电连接，多个断线点检测电阻均与N端电连接；Wherein, the two ends of the high-voltage interlock circuit are respectively set as the P terminal and the N terminal, the positive pole of the power supply is electrically connected to the P terminal, the negative pole of the power supply is electrically connected to the N terminal, and the multiple disconnection point detection resistors are all electrically connected to the N terminal;
检测高压互锁回路断线点位置的电路还包括设于高压互锁电路的P端的电阻值为R的限流采样电阻，限流采样电阻的输入端与电源的正极电连接，限流采样电阻的输出端与高压互锁电路的第一个高压连接器电连接。The circuit for detecting the position of the disconnection point of the high-voltage interlocking circuit also includes a current-limiting sampling resistor with a resistance value of R set at the P terminal of the high-voltage interlocking circuit. The output terminal of the high-voltage interlock circuit is electrically connected to the first high-voltage connector.
具体地，本实施例中将高压互锁电路的两端分别设为P端和N端，电源的正极与P端电连接，电源的负极与N端电连接，多个断线点检测电阻的一端与各高压连接器的母端接插件电连接，另一端均与N端电连接，若多个断线点检测电阻的另一端接地，则N端接地。检测高压互锁回路断线点位置的电路还包括电阻值为R的限流采样电阻，限流采样电阻设于P端(电源正极)和第一个高压连接器之间，限流采样电阻的输入端与电源的正极电连接，限流采样电阻的输出端与高压互锁电路的第一个所述高压连接器电连接。将与P端(电源正极)电连接的高压连接器定义为第一个高压连接器，然后依次按照高压连接器的串联顺序进行排序。Specifically, in this embodiment, the two ends of the high-voltage interlock circuit are respectively set as the P terminal and the N terminal, the positive pole of the power supply is electrically connected to the P terminal, and the negative pole of the power supply is electrically connected to the N terminal. One end is electrically connected to the female terminal connector of each high-voltage connector, and the other end is electrically connected to the N terminal. If the other ends of the multiple disconnection point detection resistors are grounded, the N terminal is grounded. The circuit for detecting the position of the disconnection point of the high-voltage interlock loop also includes a current-limiting sampling resistor with a resistance value of R. The current-limiting sampling resistor is set between the P terminal (the positive pole of the power supply) and the first high-voltage connector. The input terminal is electrically connected to the positive pole of the power supply, and the output terminal of the current-limiting sampling resistor is electrically connected to the first high-voltage connector of the high-voltage interlock circuit. The high-voltage connector that is electrically connected to the P terminal (the positive pole of the power supply) is defined as the first high-voltage connector, and then sorted according to the series order of the high-voltage connectors.
本发明将限流采样电阻设于P端(电源正极)和第一个高压连接器之间，一方面对高压互锁电路进行限流保护的作用，另一方面将限流采样电阻作为采样点，当其中任意一个高压连接器故障时，基于采样点的参数值快速识别断线点的位置。In the present invention, the current-limiting sampling resistor is arranged between the P terminal (positive pole of the power supply) and the first high-voltage connector. On the one hand, the high-voltage interlock circuit has the function of current-limiting protection, and on the other hand, the current-limiting sampling resistor is used as the sampling point. , when any one of the high-voltage connectors fails, quickly identify the location of the disconnection point based on the parameter value of the sampling point.
可选地，如图3所示，在本发明另外的实施例中，还包括：Optionally, as shown in FIG. 3, in another embodiment of the present invention, it further includes:
阻值检测模块110，阻值检测模块110的两端分别与P端和N端一一对应电连接，用于检测P端和N端之间的PN端电阻值RPN，且断线点检测电阻处于P端和N端之间；The resistance value detection module 110, the two ends of the resistance value detection module 110 are respectively electrically connected with the P terminal and the N terminal in one-to-one correspondence, for detecting the resistance value R PN of the PN terminal between the P terminal and the N terminal, and detecting the disconnection point The resistance is between the P terminal and the N terminal;
信号处理模块120，与阻值检测模块110电连接，用于接收PN端电阻值RPN、并将PN端电阻值RPN与预设电阻值进行比对、以得出高压互锁回路断线点位置的分析结果。The signal processing module 120 is electrically connected to the resistance value detection module 110, and is used for receiving the resistance value R PN of the PN terminal and comparing the resistance value R PN of the PN terminal with the preset resistance value, so as to obtain the disconnection of the high-voltage interlocking circuit Analysis result of point location.
当阻值检测模块110检测到RPN＝R时，信号处理模块120给出的分析结果为所有的高压连接器连接正常；When the resistance value detection module 110 detects that R PN =R, the analysis result given by the signal processing module 120 is that all the high-voltage connectors are connected normally;
当阻值检测模块110检测到RPN为无穷大时，信号处理模块120给出的分析结果为第一个高压连接器连接故障；When the resistance value detection module 110 detects that R PN is infinite, the analysis result given by the signal processing module 120 is the connection failure of the first high-voltage connector;
当阻值检测模块110检测到
具体地，本实施例中，增加阻值检测模块110用于检测PN端之间的电阻值RPN，然后将RPN发送信号处理模块120进行分析，信号处理模块120将RPN与预设电阻值进行比对得到对应的断线点位置。Specifically, in this embodiment, the resistance value detection module 110 is added to detect the resistance value R PN between the PN terminals, and then the R PN is sent to the signal processing module 120 for analysis, and the signal processing module 120 compares the R PN with the preset resistance The values are compared to obtain the corresponding breakpoint position.
当所有的高压连接器可靠连接时，RPN＝R；当第一个高压连接器未可靠连接(无论之后的第二个高压连接器至第s个高压连接器是否可靠连接，高压连接器总数为s)时，RPN为无穷大，也就是说，当RPN为无穷大时，只能判断第一个高压连接器连接故障，之后的第二个高压连接器至第n个高压连接器可能连接正常也可能连接故障；同样地，当第一个高压连接器到第m-1个高压连接器可靠连接，第m个高压连接器未可靠连接(无论第m+1个高压连接器至第s个高压连接器是否可靠连接)时，
本发明另一实施例提供一种检测高压互锁回路断线点位置的电路，包括：Another embodiment of the present invention provides a circuit for detecting the position of a disconnection point of a high-voltage interlock loop, including:
电源；power supply;
高压互锁电路，与电源电连接；高压互锁电路包括与电源电连接、并集成有高压互锁端子的多个高压连接器，每个高压连接器上均设有相互电连接的公端接插件和母端接插件，且多个高压连接器的公端接插件串联，每个高压连接器上的母端接插件的输入端子和母端接插件的输出端子电连接；The high-voltage interlock circuit is electrically connected to the power supply; the high-voltage interlock circuit includes a plurality of high-voltage connectors electrically connected to the power supply and integrated with high-voltage interlock terminals, and each high-voltage connector is provided with a male terminal that is electrically connected to each other. The plug-in and the female-end connector, and the male-end connectors of a plurality of high-voltage connectors are connected in series, and the input terminal of the female-end connector on each high-voltage connector is electrically connected with the output terminal of the female-end connector;
断线点检测电路，与高压互锁电路电连接；断线点检测电路包括与电源电连接的多个断线点检测电阻，且多个断线点检测电阻与多个高压连接器的母端接插件电连接。The disconnection point detection circuit is electrically connected to the high-voltage interlock circuit; the disconnection point detection circuit includes a plurality of disconnection point detection resistors electrically connected to the power supply, and the plurality of disconnection point detection resistors are connected to the female ends of the plurality of high-voltage connectors The connector is electrically connected.
其中，高压互锁电路的两端分别设为P端和N端，电源的正极与P端电连接，电源的负极与N端电连接，多个断线点检测电阻均与N端电连接；Wherein, the two ends of the high-voltage interlock circuit are respectively set as the P terminal and the N terminal, the positive pole of the power supply is electrically connected to the P terminal, the negative pole of the power supply is electrically connected to the N terminal, and the multiple disconnection point detection resistors are all electrically connected to the N terminal;
检测高压互锁回路断线点位置的电路还包括设于高压互锁电路的P端的电阻值为R的限流采样电阻，限流采样电阻的输入端与电源的正极电连接，限流采样电阻的输出端与高压互锁电路的第一个高压连接器电连接。The circuit for detecting the position of the disconnection point of the high-voltage interlocking circuit also includes a current-limiting sampling resistor with a resistance value of R set at the P terminal of the high-voltage interlocking circuit. The output terminal of the high-voltage interlock circuit is electrically connected to the first high-voltage connector.
可选地，如图4所示，在本发明另外的实施例中，还包括：Optionally, as shown in FIG. 4 , in another embodiment of the present invention, it further includes:
电压检测模块210，设于高压互锁电路的P端、并与限流采样电阻并联，用于检测限流采样电阻的电压值UR；The voltage detection module 210 is arranged at the P terminal of the high-voltage interlock circuit, and is connected in parallel with the current-limiting sampling resistor for detecting the voltage value UR of the current-limiting sampling resistor ;
信号分析模块220，与电压检测模块210电连接，用于接收限流采样电阻的电压值UR、并将电压值UR与预设电压值进行比对、以得到高压互锁回路断线点位置的分析结果。The signal analysis module 220, electrically connected with the voltage detection module 210, is used for receiving the voltage value UR of the current-limiting sampling resistor , and comparing the voltage value UR with the preset voltage value to obtain the disconnection point of the high-voltage interlock loop Location analysis results.
当电压检测模块210检测到UR＝U时，信号分析模块220得到的分析结果为所有的高压连接器连接正常，其中，U为电源的电压值；When the voltage detection module 210 detects that U R =U, the analysis result obtained by the signal analysis module 220 is that all the high-voltage connectors are connected normally, wherein U is the voltage value of the power supply;
当电压检测模块210检测到UR为0时，信号分析模块220得到的分析结果为第一个高压连接器连接故障；When the voltage detection module 210 detects that UR is 0, the analysis result obtained by the signal analysis module 220 is the connection failure of the first high-voltage connector;
当电压检测模块210检测到
具体地，本实施例中，增加电压检测模块210用于检测限流采样电阻两端的电压值UR，然后将UR发送信号分析模块220进行分析，信号分析模块220将UR与预设电压值进行比对得到对应的断线点位置。Specifically, in this embodiment, a voltage detection module 210 is added to detect the voltage value UR across the current-limiting sampling resistor , and then the UR is sent to the signal analysis module 220 for analysis, and the signal analysis module 220 compares UR with the preset voltage The values are compared to obtain the corresponding breakpoint position.
当所有的高压连接器可靠连接时，UR＝U，U为电源的电压值；当第一个高压连接器未可靠连接(无论之后的第二个高压连接器至第s个高压连接器是否可靠连接，高压连接器总数为s)时，UR为0，也就是说，当UR为0时，只能判断第一个高压连接器连接故障，之后的第二个高压连接器至第n个高压连接器可能连接正常也可能连接故障；同样地，当第一个高压连接器到第m-1个高压连接器可靠连接，第m个高压连接器未可靠连接(无论第m+1个高压连接器至第s个高压连接器是否可靠连接)时，
基于同一发明构思，本申请实施例还提供了一种高压互锁回路断线点位置的检测装置，包括上述实施例所述的检测高压互锁回路断线点位置的电路。Based on the same inventive concept, an embodiment of the present application also provides a device for detecting the position of a disconnection point of a high-voltage interlock loop, including the circuit for detecting the position of a disconnection point of a high-voltage interlock loop described in the above embodiments.
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. Thus, provided that these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.
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