Relay detection equipment and energy storage device

Abstract

The embodiment of the utility model discloses a relay detection device and an energy storage device, and the device comprises a relay, a driving assembly, a first power supply, a sound sensing assembly, and a signal detection assembly used for detecting a signal. A coil of the relay is connected in series with the driving assembly and the first power supply to form a coil loop; the sound sensing assembly is arranged on one side of the relay and used for collecting sound signals of the relay. The output end of the sound sensing assembly is connected with the input end of the signal detection assembly. According to the relay detection equipment provided by the embodiment of the invention, the detection efficiency of the relay can be improved.

Description

Technical Field

[0001] This application relates to the field of relay testing technology, specifically to a relay testing device and an energy storage device. Background Technology

[0002] Relays are a crucial component of protection and control circuits. With prolonged operation and frequent switching, the internal mechanical moving parts and contacts of a relay are prone to wear, leading to a decline in relay performance. Therefore, regular inspection of relays is necessary to replace or repair damaged relays.

[0003] In related technologies, relay testing involves disassembling the relay to check for damage to its internal mechanical components. However, this method is cumbersome and can easily damage the relay's mechanical structure during disassembly, affecting the testing efficiency. Summary of the Invention

[0004] In view of the above problems, this application provides a relay testing device and an energy storage device, which can improve the testing efficiency of relays.

[0005] In a first aspect, embodiments of this application provide a relay detection device, including a relay, a driving component, a first power supply, an acoustic sensing component, and a signal detection component for detecting signals; the coil of the relay is connected in series with the driving component and the first power supply to form a coil circuit; the acoustic sensing component is disposed on one side of the relay and is used to collect the acoustic signal of the relay; the output terminal of the acoustic sensing component is connected to the input terminal of the signal detection component.

[0006] The technical solution of this application provides a relay testing device, including a relay, a driving component, a first power supply, an acoustic sensing component, and a signal detection component for detecting signals. The coil of the relay is connected in series with the driving component and the first power supply to form a coil circuit. The acoustic sensing component is disposed on one side of the relay and is used to collect the acoustic signal of the relay. The output terminal of the acoustic sensing component is connected to the input terminal of the signal detection component. This allows the device to utilize the difference between the acoustic signal generated by an undamaged mechanical component during the opening or closing mechanical movement of the relay and that of a damaged mechanical component. The driving circuit controls the opening or closing of the relay, and the acoustic sensing component receives the acoustic signal from the relay during the opening or closing phase and sends it to the signal detection component for detection to determine if the relay is abnormal. This enables the determination of whether the mechanical components are damaged by detecting the mechanical movement characteristics of the relay, eliminating the need to disassemble the relay, reducing damage to the relay during the testing process, and thus improving the efficiency and accuracy of relay testing.

[0007] In some embodiments, the relay detection device further includes a current acquisition component; the input terminal of the current acquisition component is connected to the coil circuit, and the output terminal of the current acquisition component is connected to the input terminal of the signal detection component, thereby enabling relay detection by acquiring more dimensions of data generated during the mechanical movement of the relay during opening or closing, thus improving the accuracy of relay detection.

[0008] In some embodiments, the relay detection device further includes a first voltage acquisition component; the first voltage acquisition component is connected in parallel with the coil, and the output terminal of the first voltage acquisition component is connected to the input terminal of the signal detection component. This allows for relay detection by acquiring signals from more dimensions during the mechanical movement of the relay during opening or closing, thereby improving the accuracy of relay 100 detection.

[0009] In some embodiments, the relay detection device further includes a second power supply, a resistor, and a second voltage acquisition component; the contacts of the relay are connected in series with the second power supply and the resistor; the second voltage acquisition component is connected in parallel with the resistor, and the output terminal of the second voltage acquisition component is connected to the input terminal of the signal detection component. This allows for relay detection by acquiring signals from more dimensions during the mechanical movement of the relay during opening or closing, improving the accuracy of relay detection.

[0010] In some embodiments, the power supply voltage of the second power supply is lower than the power supply voltage of the first power supply.

[0011] In some embodiments, the output of the signal detection component is connected to the input of the driving component.

[0012] In some embodiments, the output of the signal detection component is connected to the first power supply and the second power supply.

[0013] In some embodiments, the signal detection component includes a signal acquisition unit and a signal detection unit; the input terminal of the signal acquisition unit is the input terminal of the signal detection component, the output terminal of the signal acquisition unit is connected to the input terminal of the signal detection unit, and the output terminal of the signal detection unit is the output terminal of the signal detection component.

[0014] In some embodiments, the drive component includes a switching device.

[0015] Secondly, embodiments of this application provide an energy storage device, including the relay detection device described in the first aspect. Attached Figure Description

[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0017] Figure 1 This is a first structural schematic diagram of a relay detection device according to some embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the second structure of a relay detection device according to some embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the third structure of a relay detection device according to some embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the fourth structure of a relay detection device according to some embodiments of this application;

[0021] Figure 5 This is a fifth structural schematic diagram of a relay detection device according to some embodiments of this application;

[0022] Figure 6 This is a sixth structural schematic diagram of a relay detection device according to some embodiments of this application.

[0023] The reference numerals in the detailed embodiments are as follows:

[0024] 100-Relay; 101-Drive assembly; 102-First power supply; 103-Acoustic sensing assembly; 104-Signal detection assembly; 105-Current acquisition assembly; 106-First voltage acquisition assembly; 107-Second power supply; R-Resistor; 108-Second voltage acquisition assembly; 201-Coil; 202-Contact; 203-Signal acquisition unit; 204-Signal detection unit. Detailed Implementation

[0025] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0027] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0028] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0030] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), and similarly, "multiple items" refers to two or more (including two).

[0031] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0032] Relays are a critical component of protection and control circuits, and their reliability directly impacts the overall reliability of these circuits. However, with prolonged operation and frequent switching, the internal mechanical moving parts and contacts of relays are prone to wear, leading to a decline in relay performance. Therefore, regular inspection of relays is necessary to replace or repair damaged relays.

[0033] In related technologies, relay testing involves disassembling the relay to check for damage to its internal mechanical components. However, this method is cumbersome, time-consuming, and can easily damage the relay's mechanical structure during disassembly, affecting the testing efficiency and accuracy.

[0034] To address the aforementioned technical problems, this application provides a relay testing device, including a relay, a driving component, a first power supply, an acoustic sensing component, and a signal detection component for detecting signals. The relay coil is connected in series with the driving component and the first power supply to form a coil circuit. The acoustic sensing component is located on one side of the relay and is used to collect the acoustic signal from the relay. The output terminal of the acoustic sensing component is connected to the input terminal of the signal detection component. This device utilizes the difference between the acoustic signal generated by an undamaged mechanical component during the opening or closing mechanical movement of the relay and that generated by a damaged mechanical component. The driving circuit controls the opening or closing of the relay, and the acoustic sensing component receives the acoustic signal from the relay during the opening or closing phase and sends it to the signal detection component for detection to determine if the relay is abnormal. This allows for the determination of whether the mechanical components are damaged by detecting the mechanical movement characteristics of the relay, eliminating the need to disassemble the relay, reducing damage to the relay during the testing process, and thus improving the efficiency and accuracy of relay testing.

[0035] A relay detection device is provided according to some embodiments of this application, such as Figure 1 As shown, the relay testing device includes a relay 100, a drive assembly 101, a first power supply 102, an acoustic sensing assembly 103, and a signal detection assembly 104 for detecting signals. The coil 201 of the relay 100 is connected in series with the drive assembly 101 and the first power supply 102 to form a coil circuit. The acoustic sensing assembly 103 is located on one side of the relay 100 and is used to collect the acoustic signal of the relay 100. The output terminal of the acoustic sensing assembly 103 is connected to the input terminal of the signal detection assembly 104.

[0036] In some embodiments, one end of the coil 201 in the relay 100 is electrically connected to one end of the drive component 101, and the other end of the drive component 101 is electrically connected to one end of the first power supply 102. The other end of the first power supply 102 is also electrically connected to the other end of the coil 201 in the relay 100, forming a coil circuit. The electrical connection between the coil 201 and the drive component 101 can be a direct electrical connection or an indirect electrical connection. That is, other components, such as a resistor R, can also be connected between the coil 201 and the drive component 101. Similarly, the electrical connection between the drive component 101 and the first power supply 102 can be a direct electrical connection or an indirect electrical connection; the electrical connection between the first power supply 102 and the coil 201 can also be a direct electrical connection or an indirect electrical connection.

[0037] Relay 100 can be a DC relay 100, such as a high-voltage DC relay 100. Drive component 101 is used to control the on / off state of the coil circuit; for example, drive component 101 can be a drive chip used to drive the on / off state of the coil circuit. First power supply 102 is a DC power supply, such as a 12V DC power supply, to power the coil circuit.

[0038] The acoustic sensing component 103 may include an acoustic sensor for collecting acoustic signals, such as a capacitive sensor, a resistive R-type sensor, a piezoelectric sensor, or a MEMS acoustic sensor. The acoustic sensing component 103 is disposed on one side of the relay 100, and may be attached to the housing of the relay 100 by adhesive, snap-fit, or screws, to collect the acoustic signals generated by the mechanical movement of the relay 100 during closing or opening. For example, the acoustic sensing component 103 may be disposed on the outer wall of the housing of the relay 100 near the contact 202, or on the inner wall of the housing of the relay 100 near the contact 202, to collect the acoustic signals generated by the contact 202 of the relay 100 during closing or opening.

[0039] To improve the accuracy of the acquired sound signals, in some embodiments, the sound sensing component 103 may include a sound sensor for acquiring sound signals and a signal processor for conditioning the sound signals, such as an amplifier for denoising and amplifying the sound signals, to amplify and denoise the weak signals acquired by the sound sensor, facilitating processing by the subsequent signal detection component 104. The sound sensor may be located on the outer wall of the relay 100 housing near the contact 202, or on the inner wall of the relay 100 housing near the contact 202, to acquire the sound signals generated by the mechanical movement of the contact 202 of the relay 100 during closing or opening. The input terminal of the signal processor is connected to the output terminal of the sound sensor, and the output terminal of the signal processor is connected to the signal detection component 104.

[0040] The signal detection component 104 may include a detection instrument for detecting acoustic signals, which may include an oscilloscope or the like for displaying acoustic signals, to monitor the acoustic signals generated by the contacts 202 of the relay 100 during the mechanical movement of closing or opening.

[0041] When relay 100 needs to be tested, the drive component 101 can control the coil circuit to switch between an open state and a closed state. When the drive component 101 controls the coil circuit to switch from an open state to a closed state, the first power supply 102 supplies power to the coil 201. At this time, the contacts 202 of relay 100 are closed, and the acoustic sensor can collect the acoustic signal of relay 100 closing and send it to the signal detection component 104. When the drive component 101 controls the coil circuit to switch from a closed state to an open state, the first power supply 102 stops supplying power to the coil 201. At this time, the contacts 202 of relay 100 are open, and the acoustic sensor can collect the acoustic signal of relay 100 opening and send it to the signal detection component 104. The detection component can detect the relay 100 by detecting the acoustic signal generated by the mechanical parts of relay 100 during the mechanical movement of opening or closing. If the signal detection component 104 does not receive an acoustic signal during the mechanical movement of closing or opening, it can be determined that relay 100 is damaged.

[0042] A relay detection device is provided, including a relay 100, a drive component 101, a first power supply 102, an acoustic sensing component 103, and a signal detection component 104 for detecting signals; the coil 201 of the relay 100 is connected in series with the drive component 101 and the first power supply 102 to form a coil circuit; the acoustic sensing component 103 is disposed on one side of the relay 100 and is used to collect the acoustic signal of the relay 100; the output terminal of the acoustic sensing component 103 is connected to the input terminal of the signal detection component 104. This allows the use of the difference between the sound signals generated by the undamaged mechanical parts of the relay 100 during the opening or closing mechanical movement and those generated by the damaged mechanical parts. The drive circuit controls the opening or closing of the relay 100, and the sound signal from the relay 100 during the opening or closing phase is received by the sound sensing component 103 and sent to the signal detection component 104 for detection to determine whether there is an abnormality in the relay 100. This enables the determination of whether the mechanical parts of the relay 100 are damaged by detecting the mechanical movement characteristics of the relay 100 without disassembling the relay 100, reducing damage to the relay 100 during the detection process, and thus improving the detection efficiency and accuracy of the relay 100.

[0043] To make the detection of relay 100 more accurate, in some embodiments, such as Figure 2 As shown, the relay detection device also includes a current acquisition component 105; the input terminal of the current acquisition component 105 is connected to the coil circuit, and the output terminal of the current acquisition component 105 is connected to the input terminal of the signal detection component 104.

[0044] The current acquisition component 105 may include a current detector for current measurement. The input terminal of the current detector is connected to the coil circuit to acquire the current in the coil circuit. The output terminal of the current detector may be connected to the input terminal of the signal detection component 104 to transmit the acquired current in the coil circuit to the signal detection component 104 for detection and / or display. For example, the signal detection component 104 may include an integrated unit for sound signal detection and current signal detection. The first input port of the integrated unit is connected to the output terminal of the sound sensing component 103 to receive and detect / / or display the sound signal acquired by the sound sensing component 103. The second input port of the integrated unit is connected to the output terminal of the current acquisition component 105 to receive and detect / / or display the current in the coil 201 acquired by the current acquisition component 105.

[0045] When relay 100 needs to be tested, the drive component 101 can control the coil circuit to switch between an open state and a closed state to control relay 100 to open or close. During the opening or closing process of relay 100, the acoustic sensing component 103 and the current acquisition component 105 will collect the acoustic and current signals generated by relay 100 during the opening or closing process and send them to the signal detection component 104. The signal detection component 104 can detect relay 100 by collecting the acoustic and current signals generated by the mechanical parts of relay 100 during the opening or closing mechanical movement. This allows for the detection of relay 100 by collecting more data from the mechanical movement of relay 100 during opening or closing, thereby improving the accuracy of relay 100 detection.

[0046] To further improve the accuracy of relay 100 detection, in some embodiments, such as Figure 3 As shown, the relay detection device also includes a first voltage acquisition component 106; the first voltage acquisition component 106 is connected in parallel with the coil 201, and the output terminal of the first voltage acquisition component 106 is connected to the input terminal of the signal detection component 104.

[0047] The first voltage acquisition component 106 may include a voltage data acquisition unit for detecting the voltage across the coil 201. For example, the first voltage acquisition component 106 may be an oscilloscope, with its voltage probe connected to both ends of the coil 201 to acquire the voltage across the coil 201. The output of the first voltage acquisition component 106 may be connected to the input of the signal detection component 104 to transmit the acquired coil 201 voltage to the signal detection component 104 for detection and / or display. For example, the signal detection component 104 may include an integrated unit for detecting sound signals, current signals, and the voltage of the coil 201. The first input port of the integrated unit is connected to the output of the sound sensing component 103 to receive and detect / / or display the sound signals collected by the sound sensing component 103. The second input port of the integrated unit is connected to the output of the current acquisition component 105 to receive and detect / / display the current of the coil 201 collected by the current acquisition component 105. The third input port of the integrated unit is connected to the output of the first voltage acquisition component 106 to receive and detect / / display the voltage of the coil 201 collected by the first voltage acquisition component 106.

[0048] When relay 100 needs to be tested, the drive component 101 can control the coil circuit to switch between an open state and a closed state to control relay 100 to open or close. During the opening or closing process of relay 100, the voltage across coil 201 will change. Therefore, in addition to using acoustic sensing component 103 for signal acquisition, or using acoustic sensing component 103 and current acquisition component 105 for signal acquisition, the first voltage acquisition component 106 can also acquire the voltage across coil 201 during the opening or closing process of relay 100 and send it to signal detection component 104. This allows signal detection component 104 to detect relay 100 by detecting the voltage change across coil 201 during the mechanical movement of the mechanical parts of relay 100 during opening or closing. This enables relay 100 detection by acquiring signals from more dimensions during the mechanical movement of relay 100 during opening or closing, thereby improving the accuracy of relay 100 detection.

[0049] To further improve the detection accuracy of relay 100, in some embodiments, such as Figure 4 As shown, the relay detection device also includes a second power supply 107, a resistor R, and a second voltage acquisition component 108; the contacts 202 of the relay 100 are connected in series with the second power supply 107 and the resistor R; the second voltage acquisition component 108 is connected in parallel with the resistor R, and the output terminal of the second voltage acquisition component 108 is connected to the input terminal of the signal detection component 104.

[0050] In some embodiments, the contact 202 is connected in series with the second power supply 107 and the resistor R. One end of the contact 202 can be electrically connected to the positive / negative terminal of the second resistor R, the negative / positive terminal of the second power supply 107 can be electrically connected to one end of the resistor R, and the other end of the resistor R can be electrically connected to the other end of the contact 202, forming a contact circuit.

[0051] The second power supply 107 can be a DC power supply. The second power supply 107 and the first power supply 102 can be two independent power supply devices, or the first power supply 102 and the second power supply 107 can be independent power supply components in a dual-channel power supply. In the dual-channel power supply, channel CH1 is the power supply channel for the first power supply 102 and is connected to the coil circuit; channel CH2 is the power supply channel for the second power supply 107 and is connected to the contact circuit. The power supply voltages of the second power supply 107 and the first power supply 102 can be the same or different.

[0052] Considering that relay 100 typically requires a 12V power supply to operate, and the second power supply 107 is used to monitor the on / off performance of contacts 202 of relay 100 and is not used to drive relay 100, in some embodiments, the power supply voltage of the second power supply 107 may be lower than the power supply voltage of the first power supply 102. For example, the first power supply 102 can be a 12V power supply, and the second power supply 107 can be a 6V power supply.

[0053] The resistance value of resistor R can be selected according to the actual situation, such as a 10K resistor R.

[0054] The second voltage acquisition component 108 may include a voltage data acquisition unit for detecting the voltage across the resistor R, and using the detected voltage as the contact circuit voltage. For example, the second voltage acquisition component 108 may be an oscilloscope, with its voltage probe connected across the resistor R to acquire the contact circuit voltage. The output of the second voltage acquisition component 108 may be connected to the input of the signal detection component 104 to transmit the acquired contact circuit voltage to the signal detection component 104 for detection and / or display. For example, the signal detection component 104 may include an integrated unit for detecting sound signals, current signals, coil 201 voltage, and contact circuit voltage. The first input port of the integrated unit is connected to the output of the sound sensing component 103 to receive and detect / / or display the sound signals collected by the sound sensing component 103. The second input port of the integrated unit is connected to the output of the current acquisition component 105 to receive and detect / / display the coil 201 current collected by the current acquisition component 105. The third input port of the integrated unit is connected to the output of the first voltage acquisition component 106 to receive and detect / / display the coil 201 voltage collected by the first voltage acquisition component 106. The fourth input port of the integrated unit is connected to the output of the second voltage acquisition component 108 to receive and detect / / display the coil 201 voltage collected by the second voltage acquisition component 108.

[0055] When relay 100 needs to be tested, the drive component 101 can control the coil circuit to switch between an open state and a closed state to control relay 100 to open or close. During the opening or closing process of relay 100, the voltage across resistor R in the contact circuit will change. Therefore, in addition to using acoustic sensing component 103 for signal acquisition, or using acoustic sensing component 103 and current acquisition component 105 and / or first voltage acquisition component 106 for signal acquisition, the second voltage acquisition component 108 can also acquire the contact circuit voltage across resistor R during the opening or closing process of relay 100 and send it to signal detection component 104. This allows signal detection component 104 to detect relay 100 by detecting the voltage change in the contact circuit during the mechanical movement of the mechanical parts of relay 100 during opening or closing. This enables relay 100 detection by acquiring signals from more dimensions during the mechanical movement of relay 100 during opening or closing, thereby improving the accuracy of relay 100 detection.

[0056] In some embodiments, such as Figure 5 As shown, the output terminal of the signal detection component 104 is connected to the input terminal of the driving component 101.

[0057] The signal detection component 104 is also used to output control signals to the drive component 101, such as output level signals, so that the drive component 101 controls the coil circuit to be turned on or off.

[0058] For example, the drive component 101 may include a switching device. The signal detection component 104 can control the switching device to close or open, thereby controlling the coil circuit to conduct or disconnect. For instance, the signal detection component 104 can output a high-level pulse signal to the drive component 101 to control the switching device to close; or output a low-level pulse signal to the drive component 101 to control the switching device to open. Since the drive component 101 is controlled by the signal detection component 104, the signal detection component 104 can determine the time period during which the coil circuit is on or off, thereby enabling the relay 100 to be detected during that time period, improving the reliability of the detection results.

[0059] In some embodiments, such as Figure 5 As shown, the output terminal of the signal detection component 104 can also be connected to the first power supply 102 and the second power supply 107.

[0060] The signal detection component 104 can be connected to the switch of the first power supply 102 and the second power supply 107 to output control signals, such as output level signals, to control the first power supply 102 and the second power supply 107 to turn on or off. For example, the signal detection component 104 can output a high-level pulse signal to the first power supply 102 and the second power supply 107 to turn on; and output a low-level pulse signal to the first power supply 102 and the second power supply 107 to turn off.

[0061] In some embodiments, the control signals sent by the signal detection component 104 to the first power supply 102 and the second power supply 107 are consistent, that is, simultaneously controlling the first power supply 102 and the second power supply 107 to be turned on, or simultaneously controlling the first power supply 102 and the second power supply 107 to be turned off. Since the first power supply 102 and the second power supply 107 are controlled by the signal detection component 104, the signal detection component 104 can determine the time period during which the first power supply 102 and the second power supply 107 are powered, thereby enabling the relay 100 to be detected during that time period, improving the reliability of the detection results.

[0062] In some embodiments, such as Figure 6 As shown, the signal detection component 104 includes a signal acquisition unit 203 and a signal detection unit 204; the input terminal of the signal acquisition unit 203 is the input terminal of the signal detection component 104, the output terminal of the signal acquisition unit 203 is connected to the input terminal of the signal detection unit 204, and the output terminal of the signal detection unit 204 is the output terminal of the signal detection component 104.

[0063] The signal acquisition unit 203 can be a multi-input channel signal acquisition device for signal acquisition. For example, the first input terminal of the signal acquisition device is connected to the output terminal of the acoustic sensing component 103, the second input terminal is connected to the output terminal of the current acquisition component 105, the third input terminal is connected to the first voltage acquisition component 106, the fourth input terminal is connected to the second voltage acquisition component 108, and the output terminal is connected to the signal detection unit 204, so as to send the acquired acoustic signal, current signal, coil 201 voltage, and contact circuit voltage to the signal detection unit 204 for detection.

[0064] The signal detection unit 204 may include an integrated machine for detecting sound signals, current signals, coil 201 voltage, and contact circuit voltage, so as to detect the relay 100 by receiving sound signals, current signals, coil 201 voltage, and contact circuit voltage sent by the signal acquisition unit 203.

[0065] The output of the signal detection unit 204 can be connected to the drive assembly 101, the first power supply 102, and the second power supply 107 to start the drive assembly 101, the first power supply 102, and the second power supply 107 to detect the relay 100 when it is necessary to detect the relay 100.

[0066] To make the purpose, technical solution and advantages of this application clearer, the technical solution in this application will be clearly and completely described below.

[0067] In some embodiments, such as Figure 6 As shown, the relay detection device includes a relay 100, a drive assembly 101, a first power supply 102, an acoustic sensing assembly 103, a current acquisition assembly 105, a first voltage acquisition assembly 106, a second power supply 107, a resistor R, a second voltage acquisition assembly 108, a signal acquisition unit 203, and a signal detection unit 204; the power supply voltage of the first power supply 102 is greater than the power supply voltage of the second power supply 107.

[0068] The coil 201 of the relay 100 is connected in series with the drive assembly 101 and the first power supply 102 to form a coil circuit; the contact 202 of the relay 100 is connected in series with the second power supply 107 and the resistor R to form a contact circuit.

[0069] The acoustic sensing component 103 is located on one side of the relay 100 and is used to collect the acoustic signal of the relay 100; the input terminal of the current acquisition component 105 is connected to the coil circuit and is used to collect the current signal of the coil circuit; the first voltage acquisition component 106 is connected in parallel with the coil 201 of the relay 100 and is used to collect the voltage of the coil 201; the second voltage acquisition component 108 is connected in parallel with the resistor R and is used to collect the contact circuit voltage.

[0070] The first input terminal of the signal acquisition unit 203 is connected to the output terminal of the acoustic sensing component 103, the second input terminal of the signal acquisition unit 203 is connected to the output terminal of the current acquisition component 105, the third input terminal of the signal acquisition unit 203 is connected to the output terminal of the first voltage acquisition component 106, the fourth input terminal of the signal acquisition unit 203 is connected to the output terminal of the second voltage acquisition component 108, and the output terminal of the signal acquisition unit 203 is connected to the output terminal of the signal detection unit 204; the output terminal of the signal detection unit 204 is connected to the driving component 101, the first power supply 102, and the second power supply 107.

[0071] When relay 100 needs to be tested, the drive assembly 101, the first power supply 102, and the second power supply 107 can be turned on through the signal detection unit 204 to control the relay 100 to close. During the closing process of relay 100, the first power supply 102 supplies power to coil 201. At this time, the contacts 202 of relay 100 are attracted, and the sound sensor can collect the sound signal of relay 100 closing. At the same time, the current in the coil circuit, the voltage across coil 201, and the voltage across resistor R in the contact circuit will all change. At this time, the sound signal collected by the sound sensing assembly 103, the current signal collected by the current acquisition assembly 105, the voltage of coil 201 collected by the first voltage acquisition assembly 106, and the contact circuit voltage collected by the second voltage acquisition assembly 108 can be sent to the signal detection unit 204 for detection through the signal acquisition unit 203.

[0072] Furthermore, the drive component 101 can be disconnected via the signal detection unit 204 to control the relay 100 to open. During the opening of the relay 100, the first power supply 102 stops supplying power to the coil 201. At this time, the contacts 202 of the relay 100 open, and the acoustic sensor can collect the acoustic signal of the relay 100 opening. Simultaneously, the current in the coil circuit, the voltage across the coil 201, and the voltage across the resistor R in the contact circuit all change. The acoustic signal collected by the acoustic sensing component 103, the current signal collected by the current acquisition component 105, the voltage of the coil 201 collected by the first voltage acquisition component 106, and the contact circuit voltage collected by the second voltage acquisition component 108 are then sent to the signal detection unit 204 for detection via the signal acquisition unit 203. Thus, the relay 100 can be detected by the signal changes generated during its opening and closing processes.

[0073] In some embodiments, an energy storage device is also provided, which may include the relay detection device in any of the above embodiments.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A relay testing device, characterized in that, It includes relays, drive components, a first power supply, acoustic sensing components, and signal detection components for detecting signals; The coil of the relay is connected in series with the drive component and the first power supply to form a coil circuit; The acoustic sensing component is located on one side of the relay and is used to collect the acoustic signal of the relay. The output terminal of the acoustic sensing component is connected to the input terminal of the signal detection component.

2. The relay testing device according to claim 1, characterized in that, The relay detection device also includes a current acquisition component; The input terminal of the current acquisition component is connected to the coil circuit, and the output terminal of the current acquisition component is connected to the input terminal of the signal detection component.

3. The relay testing device according to claim 1 or 2, characterized in that, The relay detection device also includes a first voltage acquisition component; The first voltage acquisition component is connected in parallel with the coil, and the output terminal of the first voltage acquisition component is connected to the input terminal of the signal detection component.

4. The relay testing device according to claim 1 or 2, characterized in that, The relay detection device also includes a second power supply, a resistor, and a second voltage acquisition component; The relay contacts are connected in series with the second power supply and the resistor; The second voltage acquisition component is connected in parallel with the resistor, and the output terminal of the second voltage acquisition component is connected to the input terminal of the signal detection component.

5. The relay testing device according to claim 4, characterized in that, The power supply voltage of the second power supply is lower than that of the first power supply.

6. The relay testing device according to claim 1, characterized in that, The output of the signal detection component is connected to the input of the driving component.

7. The relay testing device according to claim 4, characterized in that, The output terminal of the signal detection component is connected to the first power supply and the second power supply.

8. The relay testing device according to claim 1, 6, or 7, characterized in that, The signal detection component includes a signal acquisition unit and a signal detection unit; The input terminal of the signal acquisition unit is the input terminal of the signal detection component, the output terminal of the signal acquisition unit is connected to the input terminal of the signal detection unit, and the output terminal of the signal detection unit is the output terminal of the signal detection component.

9. The relay testing device according to any one of claims 1, 2, 5-7, characterized in that, The drive component includes a switching device.

10. An energy storage device, characterized in that, Includes the relay testing device as described in any one of claims 1-9.

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