CN220795395U

CN220795395U - IGBT detection device

Info

Publication number: CN220795395U
Application number: CN202321350757.4U
Authority: CN
Inventors: 雷胜; 谢锐阳; 甘勇
Original assignee: Wuhan Jiya Technology Service Co ltd
Current assignee: Wuhan Jiya Technology Service Co ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2024-04-16
Anticipated expiration: 2033-05-30

Abstract

The present utility model provides an IGBT detection device, comprising: the device comprises an MCU module, a power supply module, a detection module, a connector module and an IGBT chip; the power module is connected with the MCU module, the detection module and the connector module, the MCU module is connected with the detection module, the detection module is connected with the connector module, and the connector module is connected with the IGBT chip. According to the utility model, the detection module and the connector module are designed, the IGBT chip can be inserted into the connector module when the IGBT is detected, the detection module is used for carrying out remote detection, and detection personnel do not need to detect at the bottom of the device, so that the overhaul work is simpler and safer; and the state indicator lamp is arranged to directly reflect the pin communication condition of the IGBT chip, so that the detection personnel can quickly grasp the detection condition.

Description

IGBT detection device

Technical Field

The utility model relates to the field of detection devices, in particular to an IGBT detection device.

Background

The IGBT is characterized by being capable of fast switching in high-power occasions, so that the IGBT is generally used for occasions such as motor drivers, photovoltaic energy storage, APF and the like of electric vehicles.

The IGBT module is often required to be functionally tested before being used for testing the quality of the IGBT module, and its performance is also required to be tested in the process of use and maintenance, for example, an electric vehicle controller often uses the IGBT module, and because the IGBT module generates a large amount of heat during operation, the IGBT module is often placed at the bottom of the controller near a fan during installation, so that the IGBT module can be quickly cooled, the controller needs to test the IGBT module during maintenance, most of the current methods are manually tested by using a universal meter, the working voltage of the controller is often very high, and a plurality of energy storage components are arranged in the controller, and during maintenance, electric quantity may not be released, and if the electric shock is dangerous during the detection of workers, and because the IGBT module is positioned at the bottom of the controller, the detection itself is also inconvenient.

Disclosure of Invention

To solve the above technical problem, the present utility model provides an IGBT detection device, including: the device comprises an MCU module, a power supply module, a detection module, a connector module and an IGBT chip;

the power module is connected with the MCU module, the detection module and the connector module, the MCU module is connected with the detection module, the detection module is connected with the connector module, and the connector module is connected with the IGBT chip.

Preferably, the power module includes: the primary side power supply is used for providing direct current and the driving power supply is used for providing driving power supply signals.

Preferably, the detection module includes: inductance L1, diode P1, triode W1, capacitor C1 and resistor R1;

one end of an inductor L1 is connected with the positive electrode of a primary side power supply, the other end of the inductor L1 is connected with the positive electrode of a diode P1 and the C electrode of a triode W1, the negative electrode of the diode P1 is connected with one end of a capacitor C1 and one end of a resistor R1, and the negative electrode of the primary side power supply is connected with the E electrode of the triode W1 and the other end of the capacitor C1.

Preferably, the connector module includes: a plurality of IGBT connectors, each IGBT connector is connected in turn;

the IGBT connector comprises: transfer point C1, transfer point C2, transfer point G1, first transfer point E1, second transfer point E1, transfer point G2, first transfer point E2, second transfer point E2, status indicator lamp D1, and status indicator lamp D2;

the other end of the resistor R1 is connected with one end of the switching point C1, the other end of the switching point C1 is connected with one end of the state indicator lamp D1, the other end of the state indicator lamp D1 is connected with the switching point C2, the first switching point E1 and one end of the state indicator lamp D2, the other end of the state indicator lamp D2 is connected with one end of the first switching point E2, and the other end of the first switching point E2 is connected with the negative electrode of the primary side power supply;

the switching point G1 and the switching point G2 are connected with the positive electrode of the driving power supply, and the switching point C2, the second switching point E1 and the second switching point E2 are connected with the negative electrode of the driving power supply;

the circuits of the IGBT connectors are identical.

Preferably, the IGBT connector further includes an amplifying circuit;

the amplifying circuit includes: diode P2, diode P3, transistor W2 and transistor W3;

the switching point C1 is connected with the resistor R2, the C pole of the triode W2, the negative pole of the diode P2 and one end of the indicator lamp D1;

the first switching point E2 is connected with the E pole of the triode W3, the positive pole of the diode P3 and one end of the indicator lamp D2;

the switching point C2 and the first switching point E1 are connected with the E pole of the triode W2, the C pole of the triode W3, the positive pole of the diode P2, the other end of the indicator lamp D1, the negative pole of the diode P3 and the other end of the indicator lamp D2.

Preferably, the pins C1, C2, G1, E1, G2 and E2 of the IGBT chip are correspondingly connected to the switching point C1, C2, G1, E1, G2 and E2.

The utility model has the following beneficial effects:

according to the utility model, the detection module and the connector module are designed, the IGBT chip can be inserted into the connector module when the IGBT is detected, the detection module is used for carrying out remote detection, and detection personnel do not need to detect at the bottom of the device, so that the overhaul work is simpler and safer; and the state indicator lamp is arranged to directly reflect the pin communication condition of the IGBT chip, so that the detection personnel can quickly grasp the detection condition.

Drawings

Fig. 1 is a block diagram of an IGBT detection device;

FIG. 2 is a schematic diagram of a detection module;

FIG. 3 is a schematic diagram of a connector module;

FIG. 4 is an enlarged schematic circuit diagram;

the achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1, the present utility model provides an IGBT detection device including: the device comprises an MCU module, a power supply module, a detection module, a connector module and an IGBT chip;

Specifically, the MCU module is used for controlling the detection module to detect the IGBT chip, and shows the detection result with the status indicator lamp, and the control status indicator lamp lights the green light when detecting qualified, otherwise the status indicator lamp lights the red light, uses this IGBT detection device can be quick, safe detection IGBT chip.

Further, the power supply module is used for supplying power to the MCU module, the status indicator lamp, the detection module and the IGBT chip;

the power module includes: the primary side power supply is used for providing direct current and the driving power supply is used for providing driving power supply signals.

Further, referring to fig. 2, the detection module includes: inductance L1, diode P1, triode W1, capacitor C1 and resistor R1;

Further, referring to fig. 3, the connector module includes: a plurality of IGBT connectors, each IGBT connector is connected in turn;

the circuits of the IGBT connectors are identical.

Specifically, in fig. 3, taking 5 IGBT connectors as an example, 5 IGBT chips can be detected at the same time;

the transfer points adopt stud transfer points or insert transfer points, transfer points with the same symbol are mutually conducted, for example, two transfer points E1 and two transfer points E2 exist in the IGBT1, the two transfer points E1 are mutually conducted and are both conducted with a pin E1 of the IGBT chip, and the two transfer points E2 are mutually conducted and are both conducted with a pin E2 of the IGBT chip;

the status indicator lamp adopts the light emitting diode as the indicator lamp, and every testing result corresponds an indicator lamp, and whether the IGBT module is normal through the colour of each indicator lamp just can be clear to know the problem that is what step very easily just when breaking down, just so can the simple troubleshooting, reduce maintenance work load, can effectually troubleshoot the function of IGBT chip, to the retest that has installed the IGBT that accomplishes very convenient and the result is accurate, and the danger that exists when also can avoid manual operation using the device moreover.

Further, referring to fig. 4, the igbt connector further includes an amplifying circuit;

Further, the pins C1, C2, G1, E1, G2 and E2 of the IGBT chip are correspondingly connected to the switching point C1, C2, G1, E1, G2 and E2.

Further, the operation flow of detecting the IGBT using the IGBT detection device is as follows:

the first step: the connector of the connector module is correspondingly connected with the connector of the pins of the IGBT chip, and the IGBT chip is generally provided with one connector in actual use, so that the IGBT chip is convenient to be connected with other circuits, and for the IGBT chip of the vehicle controller, only the two connectors are required to be in butt joint for detection, so that the connection difficulty and the potential safety hazard of manual detection are avoided;

and a second step of: starting a circuit power supply module, starting detection, and controlling a detection module to detect an IGBT chip by an MCU module at the moment, wherein the detection process is as follows: firstly, the transfer point G1 is electrified to detect whether the transfer point C1 and the first transfer point E1 are conducted, if the conduction state indicator lamp D1 displays green, otherwise, the state indicator lamp D1 displays red; then, the switching point G2 is electrified to detect whether the switching point C2 and the first switching point E2 are conducted, if the conducting state indicator lamp D2 displays green, otherwise, the state indicator lamp D2 displays red;

and a third step of: the detection module transmits the detection result to the MCU module, and the MCU module judges whether the IGBT is normal or not.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The foregoing embodiment numbers of the present utility model are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the terms first, second, third, etc. do not denote any order, but rather the terms first, second, third, etc. are used to interpret the terms as labels.

The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. An IGBT detection device, comprising: the device comprises an MCU module, a power supply module, a detection module, a connector module and an IGBT chip;

the power module is connected with the MCU module, the detection module and the connector module, the MCU module is connected with the detection module, the detection module is connected with the connector module, and the connector module is connected with the IGBT chip;

the detection module comprises: inductance L1, diode P1, triode W1, capacitor C1 and resistor R1;

one end of an inductor L1 is connected with the positive electrode of a primary side power supply, the other end of the inductor L1 is connected with the positive electrode of a diode P1 and the C electrode of a triode W1, the negative electrode of the diode P1 is connected with one end of a capacitor C1 and one end of a resistor R1, and the negative electrode of the primary side power supply is connected with the E electrode of the triode W1 and the other end of the capacitor C1;

the connector module includes: a plurality of IGBT connectors, each IGBT connector is connected in turn;

the circuits of the IGBT connectors are identical.

2. The IGBT detection device according to claim 1, wherein the power supply module includes: the primary side power supply is used for providing direct current and the driving power supply is used for providing driving power supply signals.

3. The IGBT detection device of claim 1 wherein the IGBT connector further comprises an amplifying circuit;

4. The IGBT detection device according to claim 1, wherein the pins C1, C2, G1, E1, G2, and E2 of the IGBT chip are in corresponding communication with the switching point C1, the switching point C2, the switching point G1, the switching point E1, the switching point G2, and the switching point E2.