Relay control circuit and energy storage system

Abstract

The utility model provides a relay control circuit and an energy storage system, and relates to the field of relays. The relay control circuit comprises a signal isolation module, a signal mutual exclusion processing module, a driving module and a relay module. The input end of the signal isolation module is used for accessing an initial relay control signal, the output end of the signal isolation module is connected with the input end of the signal mutual exclusion processing module, and the signal isolation module is used for isolating the initial relay control signal from an input signal of the signal mutual exclusion processing module; the output end of the signal mutual exclusion processing module is connected with the input end of the driving module, and the signal mutual exclusion processing module is used for performing mutual exclusion processing on an input signal of the signal mutual exclusion processing module; the output end of the driving module is connected with the input end of the relay module, and the output end of the relay module is connected with a power supply. The circuit has certain reliability, and has the advantages of simple circuit and low cost.

Description

Technical Field

[0001] The utility model relates to the field of relays, and in particular to a relay control circuit and an energy storage system. Background Art

[0002] Relay is a special electronic control device, widely used in circuit systems. It is mainly used to control the on and off of the circuit to realize the power supply and control of the energy storage system. At the same time, the relay can also quickly cut off the circuit when the energy storage system has abnormal conditions such as overcharge, over discharge, over current, short circuit, etc., to prevent battery damage and safety accidents.

[0003] The relay control circuit in the prior art is mainly composed of a drive circuit and a relay. The drive circuit drives the relay to operate, thereby realizing the on-off control of the circuit.

[0004] However, when this relay control circuit is deployed in an energy storage system, due to the high voltage in the energy storage system, it is easily interfered with and there is a risk of false triggering, resulting in poor reliability. Utility Model Content

[0005] The utility model aims to provide a relay control circuit, which can ensure the reliability of the relay, so as to solve the problem that the existing relay control circuit is easily disturbed and has the risk of false action triggering.

[0006] In a first aspect, the utility model provides a relay control circuit, which comprises: a signal isolation module, a signal mutual exclusion processing module, a drive module and a relay module;

[0007] The input end of the signal isolation module is used to access the initial relay control signal, the output end of the signal isolation module is connected to the input end of the signal mutual exclusion processing module, and the signal isolation module is used to isolate the initial relay control signal from the input signal of the signal mutual exclusion processing module;

[0008] The output end of the signal mutual exclusion processing module is connected to the input end of the driving module, and the signal mutual exclusion processing module is used to perform mutual exclusion processing on the input signal of the signal mutual exclusion processing module;

[0009] The output end of the driving module is connected to the input end of the relay module, and the output end of the relay module is used to connect to a power source.

[0010] In a possible implementation, the signal isolation module includes: a first signal isolation module and a second signal isolation module;

[0011] The input end of the first signal isolation module is used to access the first input signal in the initial relay control signal, and the output end of the first signal isolation module is connected to the first input end of the signal mutual exclusion processing module;

[0012] The input end of the second signal isolation module is used to access the second input signal in the initial relay control signal, and the output end of the second signal isolation module is connected to the second input end of the signal mutual exclusion processing module.

[0013] In a possible implementation, the first signal isolation module includes: a first isolation module, a first filtering module, a first voltage stabilization module, a first enabling module, a first protection module and a first shaping module;

[0014] The first end of the first filter module is used to connect to the power supply, the second end of the first filter module is used to connect to the first isolation power supply, and the third end of the first filter module is connected to the first end of the first isolation module;

[0015] The first end of the first protection module is used to access the first input signal in the initial relay control signal, and the second end of the first protection module is connected to the second end of the first isolation module;

[0016] The first end of the first voltage stabilizing module is used to access the first input signal in the initial relay control signal, and the second end of the first voltage stabilizing module is used to be grounded;

[0017] The first end of the first enabling module is used to connect to the power supply, the second end of the first enabling module is used to connect to the first isolated power supply, and the third end of the first enabling module is connected to the third end of the first isolated module;

[0018] The first end of the first shaping module is connected to the fourth end of the first isolation module, and the second end of the first shaping module is connected to the first input end of the signal mutual exclusion processing module.

[0019] In a possible implementation, the first isolation module includes: a first isolation chip; the first protection module includes: a first resistor, a second resistor, a third resistor, and a fourth resistor;

[0020] One end of the first resistor is used to access the first signal in the first input signal, and the other end of the first resistor is connected to the first pin of the first isolation chip;

[0021] One end of the second resistor is used to access the second signal in the first input signal, and the other end of the second resistor is connected to the second pin of the first isolation chip;

[0022] One end of the third resistor is used to access the third signal in the first input signal, and the other end of the third resistor is connected to the third pin of the first isolation chip;

[0023] One end of the fourth resistor is used to access the fourth signal in the first input signal, and the other end of the fourth resistor is connected to the fourth pin of the first isolation chip;

[0024] The first shaping module includes: a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor;

[0025] One end of the fifth resistor is connected to the fifth pin of the first isolation chip, and the other end of the fifth resistor is connected to the first input end of the signal mutual exclusion processing module;

[0026] One end of the sixth resistor is connected to the sixth pin of the first isolation chip, and the other end of the sixth resistor is connected to the first input end of the signal mutual exclusion processing module;

[0027] One end of the seventh resistor is connected to the seventh pin of the first isolation chip, and the other end of the seventh resistor is connected to the first input end of the signal mutual exclusion processing module;

[0028] One end of the eighth resistor is connected to the eighth pin of the first isolation chip, and the other end of the eighth resistor is connected to the first input end of the signal mutual exclusion processing module.

[0029] In a possible implementation, the first filtering module includes: a first capacitor, a second capacitor, a third capacitor, and a fourth capacitor;

[0030] One end of the first capacitor is connected to one end of the second capacitor and a ninth pin of the first isolation chip, and the ninth pin of the first isolation chip is also used to connect to a power supply;

[0031] The other end of the first capacitor is connected to the other end of the second capacitor and the tenth pin of the first isolation chip, and the tenth pin of the first isolation chip is also used for grounding;

[0032] One end of the third capacitor is connected to one end of the fourth capacitor and the eleventh pin of the first isolation chip, and the eleventh pin of the first isolation chip is also used to connect to the first isolation power supply;

[0033] The other end of the third capacitor is connected to the other end of the fourth capacitor and the twelfth pin of the first isolation chip, and the twelfth pin of the first isolation chip is also used for grounding;

[0034] The first voltage stabilizing module includes: a ninth resistor, a tenth resistor, an eleventh resistor and a twelfth resistor;

[0035] One end of the ninth resistor is connected to one end of the first resistor, one end of the ninth resistor is also used to access the first signal in the first input signal, and the other end of the ninth resistor is used to be grounded;

[0036] One end of the tenth resistor is connected to one end of the second resistor, one end of the tenth resistor is also used to access the second signal in the first input signal, and the other end of the tenth resistor is used to be grounded;

[0037] One end of the eleventh resistor is connected to one end of the third resistor, one end of the eleventh resistor is also used to access the third signal in the first input signal, and the other end of the eleventh resistor is used to be grounded;

[0038] One end of the twelfth resistor is connected to one end of the fourth resistor, one end of the twelfth resistor is also used to access the fourth signal in the first input signal, and the other end of the twelfth resistor is used to be grounded;

[0039] The first enabling module includes: a thirteenth resistor and a fourteenth resistor;

[0040] One end of the thirteenth resistor is used to connect to the power supply, and the other end of the thirteenth resistor is connected to the thirteenth pin of the first isolation chip;

[0041] One end of the fourteenth resistor is used to access the first isolation power supply, and the other end of the fourteenth resistor is connected to the fourteenth pin of the first isolation chip.

[0042] In a possible implementation, the second signal isolation module includes: a second isolation module, a second protection module and a second shaping module;

[0043] The first end of the second protection module is used to access the second input signal in the initial relay control signal, and the second end of the second protection module is connected to the second end of the second isolation module;

[0044] The first end of the second shaping module is connected to the fourth end of the second isolation module, and the second end of the second shaping module is connected to the first input end of the signal mutual exclusion processing module.

[0045] In a possible implementation, the second isolation module includes: a second isolation chip; the second protection module includes: a fifteenth resistor;

[0046] One end of the fifteenth resistor is used to access the second input signal, and the other end of the fifteenth resistor is connected to the first pin of the second isolation chip;

[0047] The second shaping module comprises: a sixteenth resistor;

[0048] One end of the sixteenth resistor is connected to the second pin of the second isolation chip, and the other end of the sixteenth resistor is connected to the second input end of the signal mutual exclusion processing module.

[0049] In a possible implementation, the signal mutual exclusion processing module includes: a first mutual exclusion module and a second mutual exclusion module;

[0050] The input end of the first mutually exclusive module is connected to the output end of the first signal isolation module, the input end of the second mutually exclusive module is connected to the output end of the first signal isolation module and the output end of the second signal isolation module respectively, and the output end of the first mutually exclusive module and the output end of the second mutually exclusive module are both connected to the input end of the driving module.

[0051] In a possible implementation, the first mutually exclusive module includes: a first triode, a second triode, a third triode, a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, and a twenty-fifth resistor;

[0052] The second mutually exclusive module includes a fourth transistor, a fifth transistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor and a twenty-ninth resistor;

[0053] The emitter of the first triode is connected to the output end of the first signal isolation module, the base of the first triode is connected to one end of the 20th resistor, the collector of the first triode is connected to one end of the 21st resistor and the input end of the driving module, the other end of the 20th resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and one end of the 24th resistor, and the other end of the 21st resistor is connected to the first isolation power supply;

[0054] The emitter of the second triode is connected to the output end of the first signal isolation module, the base of the second triode is connected to one end of the twenty-second resistor, the collector of the second triode is connected to one end of the twenty-third resistor and the input end of the driving module, the other end of the twenty-second resistor is connected to the output end of the first signal isolation module and the emitter of the third triode, and the other end of the twenty-third resistor is grounded;

[0055] The emitter of the third triode is connected to the output end of the first signal isolation module, the base of the third triode is connected to one end of the twenty-fourth resistor, the collector of the third triode is connected to one end of the twenty-fifth resistor and the input end of the driving module, the other end of the twenty-fourth resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and the other end of the twentieth resistor, and the other end of the twenty-fifth resistor is grounded;

[0056] The emitter of the fourth triode is connected to the output end of the first signal isolation module, the base of the fourth triode is connected to one end of the twenty-sixth resistor, the collector of the fourth triode is connected to one end of the twenty-seventh resistor and the input end of the driving module, the other end of the twenty-sixth resistor is connected to the output end of the second signal isolation module and the emitter of the fifth triode, and the other end of the twenty-seventh resistor is connected to the first isolation power supply;

[0057] The emitter of the fifth transistor is connected to the output end of the second signal isolation module, the base of the fifth transistor is connected to one end of the twenty-eighth resistor, the collector of the fifth transistor is connected to one end of the twenty-ninth resistor and the input end of the driving module, the other end of the twenty-eighth resistor is connected to the output end of the first signal isolation module and the emitter of the fourth transistor, and the other end of the twenty-ninth resistor is grounded.

[0058] In a possible implementation, the first mutually exclusive module includes a first triode, a second triode, a third triode, a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, and a twenty-fifth resistor;

[0059] The second mutually exclusive module includes a fourth transistor, a fifth transistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor and a twenty-ninth resistor;

[0060] The emitter of the first triode is connected to the output end of the first signal isolation module, the base of the first triode is connected to one end of the 20th resistor, the collector of the first triode is connected to one end of the 21st resistor and the input end of the driving module, the other end of the 20th resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and one end of the 24th resistor, and the other end of the 21st resistor is grounded;

[0061] The emitter of the second triode is connected to the output end of the first signal isolation module, the base of the second triode is connected to one end of the twenty-second resistor, the collector of the second triode is connected to one end of the twenty-third resistor and the input end of the driving module, the other end of the twenty-second resistor is connected to the output end of the first signal isolation module and the emitter of the third triode, and the other end of the twenty-third resistor is connected to the first isolation power supply;

[0062] The emitter of the third triode is connected to the output end of the first signal isolation module, the base of the third triode is connected to one end of the twenty-fourth resistor, the collector of the third triode is connected to one end of the twenty-fifth resistor and the input end of the driving module, the other end of the twenty-fourth resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and the other end of the twentieth resistor, and the other end of the twenty-fifth resistor is connected to the first isolation power supply;

[0063] The emitter of the fourth triode is connected to the output end of the first signal isolation module, the base of the fourth triode is connected to one end of the twenty-sixth resistor, the collector of the fourth triode is connected to one end of the twenty-seventh resistor and the input end of the driving module, the other end of the twenty-sixth resistor is connected to the output end of the second signal isolation module and the emitter of the fifth triode, and the other end of the twenty-seventh resistor is grounded;

[0064] The emitter of the fifth transistor is connected to the output end of the second signal isolation module, the base of the fifth transistor is connected to one end of the twenty-eighth resistor, the collector of the fifth transistor is connected to one end of the twenty-ninth resistor and the input end of the driving module, the other end of the twenty-eighth resistor is connected to the output end of the first signal isolation module and the emitter of the fourth transistor, and the other end of the twenty-ninth resistor is connected to the first isolation power supply.

[0065] In a possible implementation, the driving module includes a driving chip;

[0066] The collector of the first triode and one end of the twenty-first resistor are connected to the first pin of the driving chip, the collector of the second triode and one end of the twenty-third resistor are connected to the second pin of the driving chip, the collector of the third triode and one end of the twenty-fifth resistor are connected to the third pin of the driving chip, the collector of the fourth triode and one end of the twenty-seventh resistor are connected to the fourth pin of the driving chip, and the collector of the fifth triode and one end of the twenty-ninth resistor are connected to the fifth pin of the driving chip;

[0067] The sixth pin, the seventh pin, the eighth pin, the ninth pin and the tenth pin of the driving chip are connected to the input end of the relay module.

[0068] In a possible implementation, the relay module includes a first sub-relay module and a second sub-relay module;

[0069] The first input end of the first sub-relay module is connected to the sixth pin of the driving chip, the second input end of the first sub-relay module is connected to the seventh pin of the driving chip, and the third input end of the first sub-relay module is connected to the eighth pin of the driving chip;

[0070] The first input end of the second sub-relay module is connected to the ninth pin of the driving chip, and the second input end of the second sub-relay module is connected to the tenth pin of the driving chip;

[0071] The output end of the first sub-relay module and the output end of the second sub-relay module are respectively connected to a power source.

[0072] In a possible implementation, the first sub-relay module includes a first relay, a first diode, a second diode, a third diode, a fourth diode, an eleventh capacitor, and a twelfth capacitor;

[0073] The second sub-relay module includes a second relay, a fifth diode, a sixth diode and a thirteenth capacitor;

[0074] The first end of the first relay is respectively connected to the sixth pin of the driving chip, the anode of the first diode, the anode of the third diode, the first end of the eleventh capacitor and the first end of the twelfth capacitor;

[0075] The second end of the first relay is connected to the seventh pin of the driving chip, the anode of the second diode and the second end of the eleventh capacitor respectively, and the cathode of the first diode is connected to the cathode of the second diode;

[0076] The third end of the first relay is connected to the eighth pin of the driving chip, the anode of the fourth diode and the second end of the twelfth capacitor respectively, and the cathode of the third diode is connected to the cathode of the fourth diode;

[0077] The fourth terminal and the fifth terminal of the first relay are connected to the power supply;

[0078] The first end of the second relay is connected to the ninth pin of the driving chip, the anode of the fifth diode and the first end of the thirteenth capacitor, the second end of the second relay is connected to the tenth pin of the driving chip, the anode of the sixth diode and the second end of the thirteenth capacitor, and the cathode of the fifth diode is connected to the cathode of the sixth diode;

[0079] The third terminal and the fourth terminal of the second relay are connected to the power source.

[0080] In a possible implementation, the device further includes: a power supply module;

[0081] The input end of the power supply module is connected to the initial power supply, and the output end of the power supply module is respectively connected to the signal isolation module, the signal mutual exclusion processing module, the driving module and the relay module;

[0082] The power supply module is used to generate a power supply, a first isolated power supply and a second isolated power supply.

[0083] In a possible implementation, the method further includes: a control module;

[0084] The output end of the control module is connected to the input end of the signal isolation module, and the control module is used to generate the initial relay control signal and send the initial relay control signal to the signal isolation module.

[0085] In a second aspect, the utility model further provides an energy storage system, comprising the relay control circuit and power supply described in the first aspect.

[0086] The beneficial effects provided by the utility model are: by setting a signal isolation module and a signal mutual exclusion processing module in the relay control circuit, the signal isolation module isolates the initial relay control signal from the input signal of the signal mutual exclusion processing module, and the signal mutual exclusion processing module performs mutual exclusion processing on the input signal of the signal mutual exclusion processing module, thereby ensuring the stability of the signal input to the drive module, thereby ensuring the reliability of the relay. At the same time, since only the signal isolation module and the signal mutual exclusion processing module are newly added, the utility model also has the advantages of simple circuit and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0087] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0088] Figure 1 A schematic diagram of a structure of a relay control circuit provided by an embodiment of the utility model;

[0089] Figure 2 A schematic diagram of the structure of a signal isolation module in a relay control circuit provided by an embodiment of the utility model;

[0090] Figure 3 A structural schematic diagram of a first signal isolation module in a relay control circuit provided in an embodiment of the utility model;

[0091] Figure 4 Another structural schematic diagram of the first signal isolation module in the relay control circuit provided by the embodiment of the utility model;

[0092] Figure 5 A structural schematic diagram of a second signal isolation module in a relay control circuit provided in an embodiment of the utility model;

[0093] Figure 6 Another structural schematic diagram of a second signal isolation module in a relay control circuit provided in an embodiment of the utility model;

[0094] Figure 7 A structural schematic diagram of a signal mutual exclusion processing module in a relay control circuit provided by an embodiment of the utility model;

[0095] Figure 8 A structural schematic diagram of a first mutually exclusive module and a second mutually exclusive module in a relay control circuit provided in an embodiment of the utility model;

[0096] Fig. 9 Another structural schematic diagram of a first mutually exclusive module in a relay control circuit provided by an embodiment of the utility model;

[0097] Fig.10 A schematic diagram of a structure of a driving module in a relay control circuit provided in an embodiment of the utility model;

[0098] Fig.11 A schematic diagram of the structure of a relay module in a relay control circuit provided in an embodiment of the utility model;

[0099] Fig.12 A structural schematic diagram of a first sub-relay module in a relay control circuit provided in an embodiment of the utility model;

[0100] Fig.13 A schematic diagram of a structure of a power supply module in a relay control circuit provided in an embodiment of the utility model;

[0101] Fig.14A structural schematic diagram of a control module in a relay control circuit provided in an embodiment of the utility model;

[0102] Fig.15 A schematic structural diagram of an energy storage system provided in an embodiment of the utility model.

[0103] Icons: relay control circuit 100, signal isolation module 200, signal mutual exclusion processing module 300, drive module 400, relay module 500, first signal isolation module 201, second signal isolation module 202, initial relay control signal M, first input signal M1, second input signal M2, first signal M1a, second signal M1b, third signal M1c, fourth signal M1d, first isolation module 2011, first filtering module 2012, first voltage stabilizing module 2013, first enabling module 2014, first protection module 2015, first shaping module 2016, power supply VDO, first isolated power supply PV S1, the second isolated power supply PVS2, the first isolation chip U1, the first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7, the eighth resistor R8, the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11, the twelfth resistor R12, the thirteenth resistor R13, the fourteenth resistor R14, the second isolation module 2021, the second filtering module 2022, the second voltage stabilizing module 2023, the second enabling module 2024, the second protection module 2025, the second shaping module 20 26, the second isolation chip U2, the fifteenth resistor R15, the sixteenth resistor R16, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the eighth capacitor C8, the seventeenth resistor R17, the eighteenth resistor R18, the nineteenth resistor R19, the first mutual exclusion module 301, the second mutual exclusion module 302, the first transistor Q1, the second transistor Q2, the third transistor Q3, the twentieth resistor R20, the twenty-first resistor R21, the twenty-second resistor R22, the twenty-third resistor R23, the twenty-fourth resistor R24, the twenty-fifth resistor R25, the fourth transistor Q4, the fifth transistor Q5, the twenty-sixth resistor R26, the twenty-seventh resistor R 27, the twenty-eighth resistor R28, the twenty-ninth resistor R29, the driving chip U3, the thirtieth resistor R30, the thirty-first resistor R31, the thirty-second resistor R32, the ninth capacitor C9, the tenth capacitor C10, the first sub-relay module 501, the second sub-relay module 502, the first relay RLY1, the first diode D1, the second diode D2, the third diode D3, the fourth diode D4, the eleventh capacitor C11, the twelfth capacitor C12, the second relay RLY2, the fifth diode D5, the sixth diode D6, the thirteenth capacitor C13, the power supply module 600, the control module 700, the power supply V, and the isolation ground GNDS. DETAILED DESCRIPTION

[0104] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0105] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0106] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0107] In the description of the present utility model, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present utility model.

[0108] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0109] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0110] The relay control circuit in the prior art is mainly composed of a drive circuit and a high-voltage relay. The drive circuit drives the high-voltage relay to operate, thereby realizing the on-off control of the high-voltage circuit.

[0111] However, when this relay control circuit is deployed in an energy storage system, since the voltage in the energy storage system is relatively high, often greater than 38V, it is easily interfered with and there is a risk of false triggering, resulting in poor reliability.

[0112] Based on the above problems, an embodiment of the present application proposes a relay control circuit. By setting a signal isolation module and a signal mutual exclusion processing module in the relay control circuit, the signal isolation module isolates the initial relay control signal from the input signal of the signal mutual exclusion processing module, and performs mutual exclusion processing on the input signal of the signal mutual exclusion processing module through the signal mutual exclusion processing module, thereby ensuring the stability of the signal of the input drive module and thus ensuring the reliability of the relay. At the same time, the relay control circuit provided by the utility model also has the advantages of simple circuit and low cost.

[0113] Figure 1 A schematic diagram of a structure of a relay control circuit provided by an embodiment of the utility model, referring to Figure 1 As shown, the relay control circuit 100 provided by the embodiment of the utility model includes: a signal isolation module 200 , a signal mutual exclusion processing module 300 , a driving module 400 and a relay module 500 .

[0114] The input end of the signal isolation module 200 is used to receive the initial relay control signal M, and the output end of the signal isolation module 200 is connected to the input end of the signal mutual exclusion processing module 300 .

[0115] The signal isolation module 200 is used to isolate the initial relay control signal M from the input signal of the signal mutual exclusion processing module 300 .

[0116] Optionally, the signal isolation module 200 is used to isolate the initial relay control signal M from the input signal of the signal mutual exclusion processing module 300 to ensure the certainty of the input signal of the signal mutual exclusion processing module 300, thereby improving the stability and reliability of the signal mutual exclusion processing module 300 and the driving module 400.

[0117] Optionally, the initial relay control signal M may be a pre-configured control signal for controlling the relay module 500 , and illustratively, may be a 3-way control signal or a 5-way control signal.

[0118] The output end of the signal mutual exclusion processing module 300 is connected to the input end of the driving module 400 .

[0119] The signal mutual exclusion processing module 300 is used to perform mutual exclusion processing on input signals of the signal mutual exclusion processing module 300 .

[0120] Optionally, the signal mutual exclusion processing module 300 is specifically used to perform mutual exclusion judgment and processing on the input signal of the signal mutual exclusion processing module 300, so that the signal after mutual exclusion processing can be output to the driving module 400, thereby controlling the driving module 400 to drive the relay module 500.

[0121] The output end of the driving module 400 is connected to the input end of the relay module 500 , and the output end of the relay module 500 is used to connect to the power source V.

[0122] Optionally, the driving module 400 is used to drive the relay module 500 under the output of the signal mutual exclusion processing module 300, so that the relay in the relay module 500 can be opened and closed, thereby controlling the passage and disconnection of the power supply.

[0123] By setting a signal isolation module and a signal mutual exclusion processing module in the relay control circuit, the signal isolation module isolates the initial relay control signal from the input signal of the signal mutual exclusion processing module, and the signal mutual exclusion processing module performs mutual exclusion processing on the input signal of the signal mutual exclusion processing module, thereby ensuring the stability of the signal input to the drive module, thereby ensuring the reliability of the relay. At the same time, since only the signal isolation module and the signal mutual exclusion processing module are newly added, the utility model also has the advantages of simple circuit and low cost.

[0124] Figure 2 A structural schematic diagram of a signal isolation module in a relay control circuit provided in an embodiment of the utility model.

[0125] In one possible implementation, referring to Figure 2 As shown, in Figure 1 On the basis of, the signal isolation module 200 includes: a first signal isolation module 201 and a second signal isolation module 202.

[0126] The input end of the first signal isolation module 201 is used to access the first input signal M1 in the initial relay control signal M, and the output end of the first signal isolation module 201 is connected to the first input end of the signal mutual exclusion processing module 300 .

[0127] Optionally, the first input signal M1 may be a partial signal in the initial relay control signal M, and the first input signal M1 is used to control some relays in the relay module 500 .

[0128] The input end of the second signal isolation module 202 is used to access the second input signal M2 in the initial relay control signal M, and the output end of the second signal isolation module 202 is connected to the second input end of the signal mutual exclusion processing module 300 .

[0129] Optionally, the second input signal M2 may be a partial signal in the initial relay control signal M, and the second input signal M2 is used to control some relays in the relay module 500 .

[0130] Figure 3 A structural schematic diagram of a first signal isolation module in a relay control circuit provided in an embodiment of the utility model.

[0131] In one possible implementation, referring to Figure 3 As shown, the first signal isolation module 201 includes: a first isolation module 2011 , a first filtering module 2012 , a first voltage stabilization module 2013 , a first enabling module 2014 , a first protection module 2015 and a first shaping module 2016 .

[0132] Optionally, the first isolation module 2011 is used to achieve signal isolation and signal transmission to avoid problems such as signal interference and electromagnetic interference that may occur during the transmission process, thereby improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0133] The first end of the first filter module 2012 is used to access the power supply VDO, the second end of the first filter module 2012 is used to access the first isolation power supply PVS1, and the third end of the first filter module 2012 is connected to the first end of the first isolation module 2011.

[0134] Optionally, the power supply VDO is used to power the relay control circuit provided by the utility model, and the first isolated power supply PVS1 can be an isolated voltage pre-generated by the isolated power supply. The first isolated power supply PVS1 is used to perform noise isolation and protection on the relay control circuit provided by the utility model to ensure the stable operation of the relay control circuit provided by the utility model.

[0135] Optionally, the first filtering module 2012 is used to filter the power supply VDO and the first isolated power supply PVS1 to ensure the stability and reliability of the relay control circuit provided by the utility model during operation.

[0136] A first end of the first protection module 2015 is used to access the first input signal M1 in the initial relay control signal M, and a second end of the first protection module 2015 is connected to a second end of the first isolation module 2011 .

[0137] Optionally, the first protection module 2015 is used to perform impedance matching on the first input signal M1 in the initial relay control signal M, and perform current limiting protection to protect the first isolation module 2011 from excessive current shock.

[0138] A first end of the first voltage stabilizing module 2013 is used to access the first input signal M1 in the initial relay control signal M, and a second end of the first voltage stabilizing module 2013 is used to be grounded.

[0139] Optionally, the first end of the first voltage stabilizing module 2013 is also connected to the first end of the first protection module 2015. The first voltage stabilizing module 2013 is used to provide a fixed-state signal to the first isolation module 2011 when a fault occurs in the power supply VDO and the first isolation power supply PVS1, thereby ensuring the certainty of the output signal of the first isolation module 2011 and further improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0140] The first end of the first enabling module 2014 is used to access the power supply VDO, the second end of the first enabling module 2014 is used to access the first isolated power supply PVS1, and the third end of the first enabling module 2014 is connected to the third end of the first isolation module 2011.

[0141] Optionally, the first enabling module 2014 is used to provide a constant voltage to the first isolation module 2011, so that the input signal of the first isolation module 2011 is maintained at a stable high level, thereby eliminating the instability of the first isolation module 2011. At the same time, it can also play an anti-static and anti-interference role, and improve the stability of the relay control circuit provided by the utility model.

[0142] A first end of the first shaping module 2016 is connected to the fourth end of the first isolation module 2011 , and a second end of the first shaping module 2016 is connected to the first input end of the signal mutual exclusion processing module 300 .

[0143] Optionally, the first shaping module 2016 is used to perform impedance matching on the signal output by the first isolation module 2011 to ensure signal integrity, and to perform signal shaping to reduce noise and distortion of the signal during transmission, thereby ensuring stability and reliability of the relay control circuit provided by the utility model during operation.

[0144] Figure 4 Another structural schematic diagram of the first signal isolation module in the relay control circuit provided in an embodiment of the utility model.

[0145] In one possible implementation, referring to Figure 4 As shown, in Figure 3 On the basis of, the first isolation module 2011 includes: a first isolation chip U1; the first protection module 2015 includes: a first resistor R1, a second resistor R2, a third resistor R3, and a fourth resistor R4.

[0146] Optionally, the first isolation chip U1 is used to implement signal isolation and signal transmission to avoid problems such as signal interference and electromagnetic interference that may occur during the transmission process, thereby improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0147] One end of the first resistor R1 is used to access the first signal M1a in the first input signal M1, and the other end of the first resistor R1 is connected to the first pin of the first isolation chip U1; one end of the second resistor R2 is used to access the second signal M1b in the first input signal M1, and the other end of the second resistor R2 is connected to the second pin of the first isolation chip U1; one end of the third resistor R3 is used to access the third signal M1c in the first input signal M1, and the other end of the third resistor R3 is connected to the third pin of the first isolation chip U1; one end of the fourth resistor R4 is used to access the fourth signal M1d in the first input signal M1, and the other end of the fourth resistor R4 is connected to the fourth pin of the first isolation chip U1.

[0148] Optionally, the first resistor R1 is used to perform impedance matching on the first signal M1a in the first input signal M1, and perform current limiting protection at the same time; the second resistor R2 is used to perform impedance matching on the second signal M1b in the first input signal M1, and perform current limiting protection at the same time; the third resistor R3 is used to perform impedance matching on the third signal M1c in the first input signal M1, and perform current limiting protection at the same time; the fourth resistor R4 is used to perform impedance matching on the fourth signal M1d in the first input signal M1, and perform current limiting protection at the same time, so as to protect the first isolation module 2011 from excessive current shock.

[0149] In one possible implementation, referring to Figure 4 As shown, in Figure 3 On the basis of, the first shaping module 2016 includes: a fifth resistor R5, a sixth resistor R6, a seventh resistor R7 and an eighth resistor R8.

[0150] One end of the fifth resistor R5 is connected to the fifth pin of the first isolation chip U1, and the other end of the fifth resistor R5 is connected to the first input end of the signal mutual exclusion processing module 300; one end of the sixth resistor R6 is connected to the sixth pin of the first isolation chip U1, and the other end of the sixth resistor R6 is connected to the first input end of the signal mutual exclusion processing module 300; one end of the seventh resistor R7 is connected to the seventh pin of the first isolation chip U1, and the other end of the seventh resistor R7 is connected to the first input end of the signal mutual exclusion processing module 300; one end of the eighth resistor R8 is connected to the eighth pin of the first isolation chip U1, and the other end of the eighth resistor R8 is connected to the first input end of the signal mutual exclusion processing module 300.

[0151] Optionally, the fifth resistor R5, the sixth resistor R6, the seventh resistor R7 and the eighth resistor R8 are respectively used to perform impedance matching on the signal output by the first isolation module 2011 to ensure the integrity of the signal, and to perform signal shaping to reduce noise and distortion of the signal during transmission, thereby ensuring the stability and reliability of the relay control circuit provided by the utility model during operation.

[0152] In one possible implementation, continue to refer to Figure 4 As shown, in Figure 3 On the basis of, the first filtering module 2012 includes: a first capacitor C1, a second capacitor C2, a third capacitor C3 and a fourth capacitor C4.

[0153] One end of the first capacitor C1 is connected to one end of the second capacitor C2 and the ninth pin of the first isolation chip U1, and the ninth pin of the first isolation chip U1 is also used to connect to the power supply VDO; the other end of the first capacitor C1 is connected to the other end of the second capacitor C2 and the tenth pin of the first isolation chip U1, and the tenth pin of the first isolation chip U1 is also used for grounding; one end of the third capacitor C3 is connected to one end of the fourth capacitor C4 and the eleventh pin of the first isolation chip U1, and the eleventh pin of the first isolation chip U1 is also used to connect to the first isolation power supply PVS1; the other end of the third capacitor C3 is connected to the other end of the fourth capacitor C4 and the twelfth pin of the first isolation chip U1, and the twelfth pin of the first isolation chip U1 is also used for grounding.

[0154] Optionally, the first capacitor C1 and the second capacitor C2 are used to filter the power supply VDO, and the third capacitor C3 and the fourth capacitor C4 are used to filter the first isolated power supply PVS1 to ensure the stability and reliability of the relay control circuit provided by the utility model during operation.

[0155] In one possible implementation, continue to refer to Figure 4 As shown, in Figure 3 On the basis of, the first voltage stabilizing module 2013 includes: a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11 and a twelfth resistor R12.

[0156] One end of the ninth resistor R9 is connected to one end of the first resistor R1, and one end of the ninth resistor R9 is also used to access the first signal M1a in the first input signal M1, and the other end of the ninth resistor R9 is used for grounding; one end of the tenth resistor R10 is connected to one end of the second resistor R2, and one end of the tenth resistor R10 is also used to access the second signal M1b in the first input signal M1, and the other end of the tenth resistor R10 is used for grounding; one end of the eleventh resistor R11 is connected to one end of the third resistor R3, and one end of the eleventh resistor R11 is also used to access the third signal M1c in the first input signal M1, and the other end of the eleventh resistor R11 is used for grounding; one end of the twelfth resistor R12 is connected to one end of the fourth resistor R4, and one end of the twelfth resistor R12 is also used to access the fourth signal M1d in the first input signal M1, and the other end of the twelfth resistor R12 is used for grounding.

[0157] Optionally, the ninth resistor R9, the tenth resistor R10, the eleventh resistor R11 and the twelfth resistor R12 are respectively used to provide fixed-state signals to the first isolation module 2011 when the power supply VDO and the first isolation power supply PVS1 fail, thereby ensuring the certainty of the output signal of the first isolation module 2011 and further improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0158] In one possible implementation, continue to refer to Figure 4 As shown, in Figure 3 On the basis of, the first enabling module 2014 includes: a thirteenth resistor R13 and a fourteenth resistor R14.

[0159] One end of the thirteenth resistor R13 is used to connect to the power supply VDO, and the other end of the thirteenth resistor R13 is connected to the thirteenth pin of the first isolation chip U1; one end of the fourteenth resistor R14 is used to connect to the first isolation power supply PVS1, and the other end of the fourteenth resistor R14 is connected to the fourteenth pin of the first isolation chip U1.

[0160] Optionally, the thirteenth resistor R13 is used to provide a constant voltage to the first isolation module 2011 under the action of the power supply VDO, so that the input signal of the first isolation module 2011 is maintained at a stable high level, thereby eliminating the instability of the first isolation module 2011.

[0161] Optionally, the fourteenth resistor R14 is used to provide a constant voltage to the first isolation module 2011 under the action of the first isolation power supply PVS1, so that the input signal of the first isolation module 2011 is maintained at a stable high level, thereby eliminating the instability of the first isolation module 2011.

[0162] Optionally, the thirteenth resistor R13 and the fourteenth resistor R14 can also play an anti-static and anti-interference role, thereby improving the stability of the relay control circuit provided by the utility model.

[0163] Figure 5 A structural schematic diagram of a second signal isolation module in a relay control circuit provided in an embodiment of the utility model.

[0164] In one possible implementation, referring to Figure 5 As shown, the second signal isolation module 202 includes: a second isolation module 2021 , a second filtering module 2022 , a second voltage stabilization module 2023 , a second enabling module 2024 , a second protection module 2025 and a second shaping module 2026 .

[0165] Optionally, the second isolation module 2021 is used to achieve signal isolation and signal transmission to avoid problems such as signal interference and electromagnetic interference that may occur during the transmission process, thereby improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0166] The first end of the second filter module 2022 is used to access the power supply VDO, the second end of the second filter module 2022 is used to access the first isolation power supply PVS1, and the third end of the second filter module 2022 is connected to the first end of the second isolation module 2021.

[0167] Optionally, the power supply VDO is used to power the relay control circuit provided by the utility model, and the first isolated power supply PVS1 can be an isolated voltage pre-generated by the isolated power supply. The first isolated power supply PVS1 is used to perform noise isolation and protection on the relay control circuit provided by the utility model to ensure the stable operation of the relay control circuit provided by the utility model.

[0168] Optionally, the second filtering module 2022 is used to filter the power supply VDO and the first isolated power supply PVS1 to ensure the stability and reliability of the relay control circuit provided by the utility model during operation.

[0169] A first end of the second protection module 2025 is used to access the second input signal M2 in the initial relay control signal M, and a second end of the second protection module 2025 is connected to a second end of the second isolation module 2021 .

[0170] Optionally, the second protection module 2025 is used to perform impedance matching on the second input signal M2 in the initial relay control signal M, and perform current limiting protection to protect the second isolation module 2021 from excessive current shock.

[0171] A first end of the second voltage stabilizing module 2023 is used to access the second input signal M2 in the initial relay control signal M, and a second end of the second voltage stabilizing module 2023 is used to be grounded.

[0172] Optionally, the first end of the second voltage stabilizing module 2023 is also connected to the first end of the second protection module 2025. The second voltage stabilizing module 2023 is used to provide a fixed-state signal to the second isolation module 2021 when a failure occurs in the power supply VDO and the first isolation power supply PVS1, thereby ensuring the certainty of the output signal of the second isolation module 2021 and further improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0173] The first end of the second enabling module 2024 is used to access the power supply VDO, the second end of the second enabling module 2024 is used to access the first isolated power supply PVS1, and the third end of the second enabling module 2024 is connected to the third end of the second isolation module 2021.

[0174] Optionally, the second enabling module 2024 is used to provide a constant voltage to the second isolation module 2021, so that the input signal of the second isolation module 2021 is maintained at a stable high level, thereby eliminating the instability of the second isolation module 2021. At the same time, it can also play an anti-static and anti-interference role, and improve the stability of the relay control circuit provided by the utility model.

[0175] A first end of the second shaping module 2026 is connected to the fourth end of the second isolation module 2021 , and a second end of the second shaping module 2026 is connected to the first input end of the signal mutual exclusion processing module 300 .

[0176] Optionally, the second shaping module 2026 is used to perform impedance matching on the signal output by the second isolation module 2021 to ensure the integrity of the signal, and to perform signal shaping to reduce noise and distortion of the signal during transmission, thereby ensuring the stability and reliability of the relay control circuit provided by the utility model during operation.

[0177] Figure 6 Another structural schematic diagram of the second signal isolation module in the relay control circuit provided in an embodiment of the utility model.

[0178] In one possible implementation, referring to Figure 6 As shown, in Figure 5 On the basis of, the second isolation module 2021 includes: a second isolation chip U2; the second protection module 2025 includes: a fifteenth resistor R15.

[0179] Optionally, the second isolation chip U2 is used to achieve signal isolation and signal transmission to avoid problems such as signal interference and electromagnetic interference that may occur during the transmission process, thereby improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0180] One end of the fifteenth resistor R15 is used to receive the second input signal M2 , and the other end of the fifteenth resistor R15 is connected to the first pin of the second isolation chip U2 .

[0181] Optionally, the fifteenth resistor R15 is used to perform impedance matching on the second input signal M2 and perform current limiting protection to protect the second isolation chip U2 from excessive current shock.

[0182] In one possible implementation, continue to refer to Figure 6 As shown, in Figure 5 On the basis of, the second shaping module 2026 includes: a sixteenth resistor R16.

[0183] One end of the sixteenth resistor R16 is connected to the second pin of the second isolation chip U2 , and the other end of the sixteenth resistor R16 is connected to the second input end of the signal mutual exclusion processing module 300 .

[0184] Optionally, the sixteenth resistor R16 is used to perform impedance matching on the signal output by the second isolation chip U2 to ensure the integrity of the signal, and to perform signal shaping to reduce noise and distortion of the signal during transmission, thereby ensuring the stability and reliability of the relay control circuit provided by the utility model during operation.

[0185] In one possible implementation, continue to refer to Figure 6 As shown, in Figure 5 On the basis of, the second filtering module 2022 includes: a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and an eighth capacitor C8.

[0186] One end of the fifth capacitor C5 is connected to one end of the sixth capacitor C6 and the third pin of the second isolation chip U2, and the third pin of the second isolation chip U2 is also used to connect to the power supply VDO; the other end of the fifth capacitor C5 is connected to the other end of the sixth capacitor C6 and the fourth pin of the second isolation chip U2, and the fourth pin of the second isolation chip U2 is also used for grounding; one end of the seventh capacitor C7 is connected to one end of the eighth capacitor C8 and the fifth pin of the second isolation chip U2, and the fifth pin of the second isolation chip U2 is also used to connect to the first isolation power supply PVS1; the other end of the seventh capacitor C7 is connected to the other end of the eighth capacitor C8 and the sixth pin of the second isolation chip U2, and the sixth pin of the second isolation chip U2 is also used for grounding.

[0187] Optionally, the fifth capacitor C5 and the sixth capacitor C6 are used to filter the power supply VDO, and the seventh capacitor C7 and the eighth capacitor C8 are used to filter the first isolated power supply PVS1 to ensure the stability and reliability of the relay control circuit provided by the utility model during operation.

[0188] In one possible implementation, continue to refer to Figure 6 As shown, in Figure 5 On the basis of, the second voltage stabilizing module 2023 includes: a seventeenth resistor R17.

[0189] One end of the seventeenth resistor R17 is connected to one end of the fifteenth resistor R15 , one end of the seventeenth resistor R17 is also used to receive the second input signal M2 , and the other end of the seventeenth resistor R17 is grounded.

[0190] Optionally, the seventeenth resistor R17 is used to provide a fixed-state signal to the second isolation chip U21 when a failure occurs in the power supply VDO and the first isolation power supply PVS1, thereby ensuring the certainty of the output signal of the second isolation chip U2 and further improving the stability and reliability of the relay control circuit provided by the utility model during operation.

[0191] In one possible implementation, continue to refer to Figure 6 As shown, in Figure 5 On the basis of, the second enabling module 2024 includes: an eighteenth resistor R18 and a nineteenth resistor R19.

[0192] One end of the eighteenth resistor R18 is used to connect to the power supply VDO, and the other end of the eighteenth resistor R18 is connected to the seventh pin of the second isolation chip U2; one end of the nineteenth resistor R19 is used to connect to the first isolation power supply PVS1, and the other end of the nineteenth resistor R19 is connected to the eighth pin of the second isolation chip U2.

[0193] Optionally, the eighteenth resistor R18 is used to provide a constant voltage to the second isolation chip U2 under the action of the power supply VDO, so that the input signal of the second isolation chip U2 is maintained at a stable high level, thereby eliminating the instability of the second isolation chip U2.

[0194] Optionally, the nineteenth resistor R19 is used to provide a constant voltage to the second isolation chip U21 under the action of the first isolation power supply PVS1, so that the input signal of the second isolation chip U2 is maintained at a stable high level, thereby eliminating the instability of the second isolation chip U2.

[0195] Optionally, the eighteenth resistor R18 and the nineteenth resistor R19 can also play an anti-static and anti-interference role, thereby improving the stability of the relay control circuit provided by the utility model.

[0196] Figure 7 A structural schematic diagram of a signal mutual exclusion processing module in a relay control circuit provided in an embodiment of the utility model.

[0197] In one possible implementation, referring to Figure 7 As shown, in Figure 2 On the basis of, the signal mutual exclusion processing module 300 includes: a first mutual exclusion module 301 and a second mutual exclusion module 302.

[0198] The input end of the first mutual exclusion module 301 is connected to the output end of the first signal isolation module 201, the input end of the second mutual exclusion module 302 is connected to the output end of the first signal isolation module 201 and the output end of the second signal isolation module 202 respectively, and the output end of the first mutual exclusion module 301 and the output end of the second mutual exclusion module 302 are both connected to the input end of the driving module 400.

[0199] Optionally, the first mutual exclusion module 301 is used to perform mutual exclusion processing on the signal output by the first signal isolation module 201 , and the second mutual exclusion module 302 is used to perform mutual exclusion processing on the signals output by the first signal isolation module 201 and the second signal isolation module 202 .

[0200] Figure 8 A structural schematic diagram of a first mutually exclusive module and a second mutually exclusive module in a relay control circuit provided in an embodiment of the utility model.

[0201] In one possible implementation, referring to Figure 8 As shown, the first mutually exclusive module 301 includes: a first transistor Q1, a second transistor Q2, a third transistor Q3, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24 ​​and a twenty-fifth resistor R25.

[0202] The emitter of the first transistor Q1 is connected to the output end of the first signal isolation module 201, the base of the first transistor Q1 is connected to one end of the twentieth resistor R20, the collector of the first transistor Q1 is connected to one end of the twenty-first resistor R21 and the input end of the driving module 400, the other end of the twentieth resistor R20 is connected to the output end of the first signal isolation module 201, the emitter of the second transistor Q2 and one end of the twenty-fourth resistor R24, and the other end of the twenty-first resistor R21 is connected to the first isolation power supply PVS1.

[0203] Optionally, the twenty-first resistor R21 is a pull-up resistor.

[0204] The emitter of the second transistor Q2 is connected to the output end of the first signal isolation module 201, the base of the second transistor Q2 is connected to one end of the twenty-second resistor R22, the collector of the second transistor Q2 is connected to one end of the twenty-third resistor R23 and the input end of the driving module 400, the other end of the twenty-second resistor R22 is connected to the output end of the first signal isolation module 201 and the emitter of the third transistor Q3, and the other end of the twenty-third resistor R23 is grounded.

[0205] Optionally, the twenty-third resistor R23 is a pull-down resistor.

[0206] The emitter of the third transistor Q3 is connected to the output end of the first signal isolation module 201, the base of the third transistor Q3 is connected to one end of the twenty-fourth resistor R24, the collector of the third transistor Q3 is connected to one end of the twenty-fifth resistor R25 and the input end of the driving module 400, the other end of the twenty-fourth resistor R24 ​​is connected to the output end of the first signal isolation module 201, the emitter of the second transistor Q2 and the other end of the twentieth resistor R20, and the other end of the twenty-fifth resistor R25 is grounded.

[0207] Optionally, the twenty-fifth resistor R25 is a pull-down resistor.

[0208] Optionally, in the first mutually exclusive module 301, the signals input by the second transistor Q2 and the third transistor Q3 are a pair of mutually exclusive signals, and when the first transistor Q1 is turned on, the second transistor Q2 is turned off, and the third transistor Q3 is turned on, the relay module can be controlled to be turned on. When reset is required, the signals input by the second transistor Q2 and the third transistor Q3 are flipped at the same time, which can control the relay module to reset.

[0209] In one possible implementation, continue to refer to Figure 8 As shown, the second mutual exclusion module 302 includes a fourth transistor Q4, a fifth transistor Q5, a twenty-sixth resistor R26, a twenty-seventh resistor R27, a twenty-eighth resistor R28 and a twenty-ninth resistor R29.

[0210] The emitter of the fourth transistor Q4 is connected to the output end of the first signal isolation module 201, the base of the fourth transistor Q4 is connected to one end of the twenty-sixth resistor R26, the collector of the fourth transistor Q4 is connected to one end of the twenty-seventh resistor R27 and the input end of the driving module 400, the other end of the twenty-sixth resistor R26 is connected to the output end of the second signal isolation module 202 and the emitter of the fifth transistor Q5, and the other end of the twenty-seventh resistor R27 is connected to the first isolation power supply PVS1.

[0211] Optionally, the twenty-seventh resistor R27 is a pull-up resistor.

[0212] The emitter of the fifth transistor Q5 is connected to the output end of the second signal isolation module 202, the base of the fifth transistor Q5 is connected to one end of the twenty-eighth resistor R28, the collector of the fifth transistor Q5 is connected to one end of the twenty-ninth resistor R29 and the input end of the driving module 400, the other end of the twenty-eighth resistor R28 is connected to the output end of the first signal isolation module 201 and the emitter of the fourth transistor Q4, and the other end of the twenty-ninth resistor R29 is grounded.

[0213] Optionally, the twenty-ninth resistor R29 is a pull-down resistor.

[0214] It can be understood that there is a corresponding relationship between the signal output after the mutual exclusion processing by the first mutual exclusion module and the second mutual exclusion module and the signal input to the first mutual exclusion module and the second mutual exclusion module.

[0215] Exemplarily, the correspondence between the input signal and the output signal in the first mutually exclusive module and the second mutually exclusive module may be shown in the following table.

[0216]

[0217]

[0218] Among them, the input signal is INPUT, the output signal is OUTPUT, S1-S5 are the input signals of the first transistor Q1, the second transistor Q2, the third transistor Q3, the fourth transistor Q4 and the fifth transistor Q5 respectively, and R_S_1-R_S_5 are the signals output from the driving module to the relay module respectively.

[0219] It can be understood that the first mutually exclusive module and the second mutually exclusive module are used to perform mutually exclusive processing on the signals output by the first isolation module and the second isolation module so as to control the relays in the relay module. Based on this, the twenty-first resistor R21, the twenty-third resistor R23, the twenty-fifth resistor R25, the twenty-seventh resistor R27 and the twenty-ninth resistor R29 can be set by the mounting process. Specifically, when mounting the twenty-first resistor R21, the twenty-third resistor R23, the twenty-fifth resistor R25, the twenty-seventh resistor R27 and the twenty-ninth resistor R29, the setting can be carried out in the manner described in the above embodiment, or the twenty-first resistor R21, the twenty-third resistor R23, the twenty-fifth resistor R25, the twenty-seventh resistor R27 and the twenty-ninth resistor R29 can be set according to the following embodiment, so that the first mutually exclusive module and the second mutually exclusive module can meet the control strategies of different relay modules.

[0220] Fig. 9 Another structural schematic diagram of the first mutually exclusive module in the relay control circuit provided in an embodiment of the utility model.

[0221] In one possible implementation, referring to Fig. 9 As shown, the first mutual exclusion module 301 includes a first transistor Q1, a second transistor Q2, a third transistor Q3, a twentieth resistor R20, a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24 ​​and a twenty-fifth resistor R25.

[0222] The emitter of the first transistor Q1 is connected to the output end of the first signal isolation module 201, the base of the first transistor Q1 is connected to one end of the twentieth resistor R20, the collector of the first transistor Q1 is connected to one end of the twenty-first resistor R21 and the input end of the driving module 400, the other end of the twentieth resistor R20 is connected to the output end of the first signal isolation module 201, the emitter of the second transistor Q2 and one end of the twenty-fourth resistor R24, and the other end of the twenty-first resistor R21 is grounded.

[0223] The emitter of the second transistor Q2 is connected to the output end of the first signal isolation module 201, the base of the second transistor Q2 is connected to one end of the twenty-second resistor R22, the collector of the second transistor Q2 is connected to one end of the twenty-third resistor R23 and the input end of the driving module 400, the other end of the twenty-second resistor R22 is connected to the output end of the first signal isolation module 201 and the emitter of the third transistor Q3, and the other end of the twenty-third resistor R23 is connected to the first isolation power supply PVS1.

[0224] The emitter of the third transistor Q3 is connected to the output end of the first signal isolation module 201, the base of the third transistor Q3 is connected to one end of the twenty-fourth resistor R24, the collector of the third transistor Q3 is connected to one end of the twenty-fifth resistor R25 and the input end of the driving module 400, the other end of the twenty-fourth resistor R24 ​​is connected to the output end of the first signal isolation module 201, the emitter of the second transistor Q2 and the other end of the twentieth resistor R20, and the other end of the twenty-fifth resistor R25 is connected to the first isolation power supply PVS1.

[0225] In one possible implementation, referring to Fig. 9 As shown, the second mutual exclusion module 302 includes a fourth transistor Q4, a fifth transistor Q5, a twenty-sixth resistor R26, a twenty-seventh resistor R27, a twenty-eighth resistor R28 and a twenty-ninth resistor R29.

[0226] The emitter of the fourth transistor Q4 is connected to the output end of the first signal isolation module 201, the base of the fourth transistor Q4 is connected to one end of the twenty-sixth resistor R26, the collector of the fourth transistor Q4 is connected to one end of the twenty-seventh resistor R27 and the input end of the driving module 400, the other end of the twenty-sixth resistor R26 is connected to the output end of the second signal isolation module 202 and the emitter of the fifth transistor Q5, and the other end of the twenty-seventh resistor R27 is grounded.

[0227] The emitter of the fifth transistor Q5 is connected to the output end of the second signal isolation module 202, the base of the fifth transistor Q5 is connected to one end of the twenty-eighth resistor R28, the collector of the fifth transistor Q5 is connected to one end of the twenty-ninth resistor R29 and the input end of the driving module 400, the other end of the twenty-eighth resistor R28 is connected to the output end of the first signal isolation module 201 and the emitter of the fourth transistor Q4, and the other end of the twenty-ninth resistor R29 is connected to the first isolation power supply PVS1.

[0228] Fig.10 A schematic diagram of the structure of a driving module in a relay control circuit provided in an embodiment of the utility model.

[0229] In one possible implementation, referring to Fig.10 As shown, in Figure 8 On the basis of, the driving module 400 includes a driving chip U3.

[0230] Optionally, the driving chip U3 may be a driver with a Darlington transistor structure, for driving the relay module.

[0231] The collector of the first transistor Q1 and one end of the twenty-first resistor R21 are connected to the first pin of the driving chip U3, the collector of the second transistor Q2 and one end of the twenty-third resistor R23 are connected to the second pin of the driving chip U3, the collector of the third transistor Q3 and one end of the twenty-fifth resistor R25 are connected to the third pin of the driving chip U3, the collector of the fourth transistor Q4 and one end of the twenty-seventh resistor R27 are connected to the fourth pin of the driving chip U3, and the collector of the fifth transistor Q5 and one end of the twenty-ninth resistor R29 are connected to the fifth pin of the driving chip U3.

[0232] The sixth pin, the seventh pin, the eighth pin, the ninth pin and the tenth pin of the driving chip U3 are all connected to the input end of the relay module 500 .

[0233] Optionally, the driving chip U3 is used to drive the signal processed by the signal mutual exclusion module to the relay module.

[0234] In one possible implementation, continue to refer to Fig.10 As shown, in Figure 8 On the basis of, the driving module 400 further includes: a 30th resistor R30, a 31st resistor R31, a 32nd resistor R32, a ninth capacitor C9 and a tenth capacitor C10.

[0235] One end of the 30th resistor R30 is connected to the 11th pin of the driving chip U3, and the other end of the 30th resistor R30 is used for grounding; one end of the 31st resistor R31 is connected to the 12th pin of the driving chip U3, and the other end of the 31st resistor R31 is used for grounding; one end of the 32nd resistor R32 is connected to the 13th pin of the driving chip U3, and the other end of the 32nd resistor R32 is used for grounding.

[0236] Optionally, the 30th resistor R30, the 31st resistor R31, and the 32nd resistor R32 are used to fix the level state of the pins of the unused driving chip U3 to prevent damage to the driving chip U3, thereby ensuring the stability and reliability of the relay control circuit provided by the utility model during operation.

[0237] One end of the ninth capacitor C9 is connected to one end of the tenth capacitor C10 and the fourteenth pin of the driving chip U3, and the fourteenth pin of the driving chip U3 is also used to connect to the second isolation power supply PVS2; the other end of the ninth capacitor C9 is connected to the other end of the tenth capacitor C10 and the fifteenth pin of the driving chip U3, and the fifteenth pin of the driving chip U3 is also used for grounding.

[0238] Optionally, the second isolated power supply PVS2 may be an isolated voltage pre-generated by an isolated power supply, and the second isolated power supply PVS2 is used to perform noise isolation and protection on the relay control circuit provided by the utility model to ensure stable operation of the relay control circuit provided by the utility model.

[0239] Optionally, the ninth capacitor C9 and the tenth capacitor C10 are used to filter the second isolated power supply PVS1 to ensure the stability and reliability of the relay control circuit provided by the utility model during operation.

[0240] Fig.11 A structural schematic diagram of a relay module in a relay control circuit provided in an embodiment of the utility model.

[0241] In one possible implementation, referring to Fig.11 As shown, the relay module 500 includes a first sub-relay module 501 and a second sub-relay module 502 .

[0242] The first input terminal of the first sub-relay module 501 is connected to the sixth pin of the driver chip U3, the second input terminal of the first sub-relay module 501 is connected to the seventh pin of the driver chip U3, and the third input terminal of the first sub-relay module 501 is connected to the eighth pin of the driver chip U3;

[0243] The first input terminal of the second sub-relay module 502 is connected to the ninth pin of the driver chip U3, and the second input terminal of the second sub-relay module 502 is connected to the tenth pin of the driver chip U3;

[0244] The output end of the first sub-relay module 501 and the output end of the second sub-relay module 502 are connected to the power source V respectively.

[0245] Optionally, the first sub-relay module 501 may include a standard polarity double-coil magnetic latching relay, and the second sub-relay module 502 may include a single-coil magnetic latching relay or a common relay. The first sub-relay module 501 and the second sub-relay module 502 may work under the drive of the drive module 400 respectively.

[0246] Fig.12 A structural schematic diagram of a first sub-relay module in a relay control circuit provided in an embodiment of the utility model.

[0247] In one possible implementation, referring to Fig.12 As shown, in Fig.11 On the basis of, the first sub-relay module 501 includes a first relay RLY1, a first diode D1, a second diode D2, a third diode D3, a fourth diode D4, an eleventh capacitor C11 and a twelfth capacitor C12.

[0248] The first end of the first relay RLY1 is connected to the sixth pin of the driving chip U3, the anode of the first diode D1, the anode of the third diode D3, the first end of the eleventh capacitor C11 and the first end of the twelfth capacitor C12 respectively; the second end of the first relay RLY1 is connected to the seventh pin of the driving chip U3, the anode of the second diode D2 and the second end of the eleventh capacitor C11 respectively, and the cathode of the first diode D1 is connected to the cathode of the second diode D2; the third end of the first relay RLY1 is connected to the eighth pin of the driving chip U3, the anode of the fourth diode D4 and the second end of the twelfth capacitor C12 respectively, and the cathode of the third diode D3 is connected to the cathode of the fourth diode D4; the fourth end and the fifth end of the first relay RLY1 are connected to the power supply V.

[0249] Optionally, the first relay RLY1 can be a standard polarity double-coil magnetic latching relay, and the first diode D1, the second diode D2, the third diode D3, the fourth diode D4, the eleventh capacitor C11 and the twelfth capacitor C12 are used to ensure that the first relay RLY1 will not be short-circuited, thereby ensuring the stability and reliability of the relay control circuit provided by the utility model during operation.

[0250] In one possible implementation, continue to refer to Fig.12 As shown, the second sub-relay module 502 includes a second relay RLY2 , a fifth diode D5 , a sixth diode D6 , and a thirteenth capacitor C13 .

[0251] The first end of the second relay RLY2 is connected to the ninth pin of the driving chip U3, the anode of the fifth diode D5 and the first end of the thirteenth capacitor C13, the second end of the second relay RLY2 is connected to the tenth pin of the driving chip U3, the anode of the sixth diode D6 and the second end of the thirteenth capacitor C13, the cathode of the fifth diode D5 is connected to the cathode of the sixth diode D6; the third and fourth ends of the second relay RLY2 are connected to the power supply V.

[0252] Optionally, the second relay RLY2 can be a single-coil magnetic latching relay or a common relay, and the fifth diode D5, the sixth diode D6 and the thirteenth capacitor C13 are used to ensure that the second relay RLY2 will not be short-circuited, thereby ensuring the stability and reliability of the relay control circuit provided by the utility model during operation.

[0253] Fig.13 A schematic diagram of the structure of a power supply module in a relay control circuit provided in an embodiment of the utility model.

[0254] In one possible implementation, referring to Fig.13 As shown, the relay control circuit further includes: a power supply module 600 .

[0255] The input end of the power supply module 600 is connected to the initial power supply, and the output end of the power supply module 600 is respectively connected to the signal isolation module 200, the signal mutual exclusion processing module 300, the driving module 400 and the relay module 500; the power supply module 600 is used to generate a power supply VDO, a first isolated power supply PVS1 and a second isolated power supply PVS2.

[0256] Optionally, refer to Fig.13As shown, the power supply module 600 may include a primary power supply, a secondary power supply, a tertiary power supply and two isolated power supplies. After the initial power supply is input, a power supply power VDO can be generated after passing through the primary power supply, the secondary power supply and the tertiary power supply. The secondary power supply generates a first isolated power supply PVS1 after passing through the first isolated power supply, and the primary power supply generates a second isolated power supply PVS2 after passing through the second isolated power supply.

[0257] Fig.14 A structural schematic diagram of a control module in a relay control circuit provided in an embodiment of the utility model.

[0258] In one possible implementation, referring to Fig.14 As shown, in Figure 1 On the basis of, it also includes: a control module 700.

[0259] Optionally, the control module 700 may be a microcontroller unit or a single-chip microcomputer (Microcontroller Unit, MCU for short).

[0260] The output end of the control module 700 is connected to the input end of the signal isolation module 200 . The control module 700 is used to generate an initial relay control signal M and send the initial relay control signal M to the signal isolation module 200 .

[0261] Based on the same inventive concept, the embodiment of the utility model also provides an energy storage system, Fig.15 A schematic diagram of a structure of an energy storage system provided by an embodiment of the utility model, referring to Fig.15 As shown, the energy storage system includes the aforementioned relay control circuit and a power supply V.

[0262] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A relay control circuit, characterized in that: include: Signal isolation module, signal mutual exclusion processing module, drive module and relay module; The input end of the signal isolation module is used to access the initial relay control signal, the output end of the signal isolation module is connected to the input end of the signal mutual exclusion processing module, and the signal isolation module is used to isolate the initial relay control signal from the input signal of the signal mutual exclusion processing module; The output end of the signal mutual exclusion processing module is connected to the input end of the driving module, and the signal mutual exclusion processing module is used to perform mutual exclusion processing on the input signal of the signal mutual exclusion processing module; The output end of the driving module is connected to the input end of the relay module, and the output end of the relay module is used to connect to a power source.

2. The relay control circuit according to claim 1, characterized in that: The signal isolation module includes: a first signal isolation module and a second signal isolation module; The input end of the first signal isolation module is used to access the first input signal in the initial relay control signal, and the output end of the first signal isolation module is connected to the first input end of the signal mutual exclusion processing module; The input end of the second signal isolation module is used to access the second input signal in the initial relay control signal, and the output end of the second signal isolation module is connected to the second input end of the signal mutual exclusion processing module.

3. The relay control circuit according to claim 2, characterized in that: The first signal isolation module includes: a first isolation module, a first filtering module, a first voltage stabilization module, a first enabling module, a first protection module and a first shaping module; The first end of the first filter module is used to connect to the power supply, the second end of the first filter module is used to connect to the first isolation power supply, and the third end of the first filter module is connected to the first end of the first isolation module; The first end of the first protection module is used to access the first input signal in the initial relay control signal, and the second end of the first protection module is connected to the second end of the first isolation module; The first end of the first voltage stabilizing module is used to access the first input signal in the initial relay control signal, and the second end of the first voltage stabilizing module is used to be grounded; The first end of the first enabling module is used to connect to the power supply, the second end of the first enabling module is used to connect to the first isolated power supply, and the third end of the first enabling module is connected to the third end of the first isolated module; The first end of the first shaping module is connected to the fourth end of the first isolation module, and the second end of the first shaping module is connected to the first input end of the signal mutual exclusion processing module.

4. The relay control circuit according to claim 3, characterized in that: The first isolation module includes: a first isolation chip; the first protection module includes: a first resistor, a second resistor, a third resistor, and a fourth resistor; One end of the first resistor is used to access the first signal in the first input signal, and the other end of the first resistor is connected to the first pin of the first isolation chip; One end of the second resistor is used to access the second signal in the first input signal, and the other end of the second resistor is connected to the second pin of the first isolation chip; One end of the third resistor is used to access the third signal in the first input signal, and the other end of the third resistor is connected to the third pin of the first isolation chip; One end of the fourth resistor is used to access the fourth signal in the first input signal, and the other end of the fourth resistor is connected to the fourth pin of the first isolation chip; The first shaping module includes: a fifth resistor, a sixth resistor, a seventh resistor and an eighth resistor; One end of the fifth resistor is connected to the fifth pin of the first isolation chip, and the other end of the fifth resistor is connected to the first input end of the signal mutual exclusion processing module; One end of the sixth resistor is connected to the sixth pin of the first isolation chip, and the other end of the sixth resistor is connected to the first input end of the signal mutual exclusion processing module; One end of the seventh resistor is connected to the seventh pin of the first isolation chip, and the other end of the seventh resistor is connected to the first input end of the signal mutual exclusion processing module; One end of the eighth resistor is connected to the eighth pin of the first isolation chip, and the other end of the eighth resistor is connected to the first input end of the signal mutual exclusion processing module.

5. The relay control circuit according to claim 4, characterized in that: The first filtering module includes: a first capacitor, a second capacitor, a third capacitor and a fourth capacitor; One end of the first capacitor is connected to one end of the second capacitor and a ninth pin of the first isolation chip, and the ninth pin of the first isolation chip is also used to connect to a power supply; The other end of the first capacitor is connected to the other end of the second capacitor and the tenth pin of the first isolation chip, and the tenth pin of the first isolation chip is also used for grounding; One end of the third capacitor is connected to one end of the fourth capacitor and the eleventh pin of the first isolation chip, and the eleventh pin of the first isolation chip is also used to connect to the first isolation power supply; The other end of the third capacitor is connected to the other end of the fourth capacitor and the twelfth pin of the first isolation chip, and the twelfth pin of the first isolation chip is also used for grounding; The first voltage stabilizing module includes: a ninth resistor, a tenth resistor, an eleventh resistor and a twelfth resistor; One end of the ninth resistor is connected to one end of the first resistor, one end of the ninth resistor is also used to access the first signal in the first input signal, and the other end of the ninth resistor is grounded; one end of the tenth resistor is connected to one end of the second resistor, one end of the tenth resistor is also used to access the second signal in the first input signal, and the other end of the tenth resistor is grounded; One end of the eleventh resistor is connected to one end of the third resistor, one end of the eleventh resistor is also used to access the third signal in the first input signal, and the other end of the eleventh resistor is used to be grounded; One end of the twelfth resistor is connected to one end of the fourth resistor, one end of the twelfth resistor is also used to access the fourth signal in the first input signal, and the other end of the twelfth resistor is used to be grounded; The first enabling module includes: a thirteenth resistor and a fourteenth resistor; One end of the thirteenth resistor is used to connect to the power supply, and the other end of the thirteenth resistor is connected to the thirteenth pin of the first isolation chip; One end of the fourteenth resistor is used to access the first isolation power supply, and the other end of the fourteenth resistor is connected to the fourteenth pin of the first isolation chip.

6. The relay control circuit according to claim 2, characterized in that: The second signal isolation module includes: a second isolation module, a second protection module and a second shaping module; The first end of the second protection module is used to access the second input signal in the initial relay control signal, and the second end of the second protection module is connected to the second end of the second isolation module; The first end of the second shaping module is connected to the fourth end of the second isolation module, and the second end of the second shaping module is connected to the first input end of the signal mutual exclusion processing module.

7. The relay control circuit according to claim 6, characterized in that: The second isolation module includes: a second isolation chip; the second protection module includes: a fifteenth resistor; One end of the fifteenth resistor is used to access the second input signal, and the other end of the fifteenth resistor is connected to the first pin of the second isolation chip; The second shaping module comprises: a sixteenth resistor; One end of the sixteenth resistor is connected to the second pin of the second isolation chip, and the other end of the sixteenth resistor is connected to the second input end of the signal mutual exclusion processing module.

8. The relay control circuit according to claim 2, characterized in that: The signal mutual exclusion processing module includes: a first mutual exclusion module and a second mutual exclusion module; The input end of the first mutually exclusive module is connected to the output end of the first signal isolation module, the input end of the second mutually exclusive module is connected to the output end of the first signal isolation module and the output end of the second signal isolation module respectively, and the output end of the first mutually exclusive module and the output end of the second mutually exclusive module are both connected to the input end of the driving module.

9. The relay control circuit according to claim 8, characterized in that: The first mutually exclusive module includes: a first triode, a second triode, a third triode, a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor and a twenty-fifth resistor; The second mutually exclusive module includes a fourth transistor, a fifth transistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor and a twenty-ninth resistor; The emitter of the first triode is connected to the output end of the first signal isolation module, the base of the first triode is connected to one end of the 20th resistor, the collector of the first triode is connected to one end of the 21st resistor and the input end of the driving module, the other end of the 20th resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and one end of the 24th resistor, and the other end of the 21st resistor is connected to the first isolation power supply; The emitter of the second triode is connected to the output end of the first signal isolation module, the base of the second triode is connected to one end of the twenty-second resistor, the collector of the second triode is connected to one end of the twenty-third resistor and the input end of the driving module, the other end of the twenty-second resistor is connected to the output end of the first signal isolation module and the emitter of the third triode, and the other end of the twenty-third resistor is grounded; The emitter of the third triode is connected to the output end of the first signal isolation module, the base of the third triode is connected to one end of the twenty-fourth resistor, the collector of the third triode is connected to one end of the twenty-fifth resistor and the input end of the driving module, the other end of the twenty-fourth resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and the other end of the twentieth resistor, and the other end of the twenty-fifth resistor is grounded; The emitter of the fourth triode is connected to the output end of the first signal isolation module, the base of the fourth triode is connected to one end of the twenty-sixth resistor, the collector of the fourth triode is connected to one end of the twenty-seventh resistor and the input end of the driving module, the other end of the twenty-sixth resistor is connected to the output end of the second signal isolation module and the emitter of the fifth triode, and the other end of the twenty-seventh resistor is connected to the first isolation power supply; The emitter of the fifth transistor is connected to the output end of the second signal isolation module, the base of the fifth transistor is connected to one end of the twenty-eighth resistor, the collector of the fifth transistor is connected to one end of the twenty-ninth resistor and the input end of the driving module, the other end of the twenty-eighth resistor is connected to the output end of the first signal isolation module and the emitter of the fourth transistor, and the other end of the twenty-ninth resistor is grounded.

10. The relay control circuit according to claim 8, characterized in that: The first mutually exclusive module includes a first triode, a second triode, a third triode, a twentieth resistor, a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor and a twenty-fifth resistor; The second mutually exclusive module includes a fourth transistor, a fifth transistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor and a twenty-ninth resistor; The emitter of the first triode is connected to the output end of the first signal isolation module, the base of the first triode is connected to one end of the 20th resistor, the collector of the first triode is connected to one end of the 21st resistor and the input end of the driving module, the other end of the 20th resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and one end of the 24th resistor, and the other end of the 21st resistor is grounded; The emitter of the second triode is connected to the output end of the first signal isolation module, the base of the second triode is connected to one end of the twenty-second resistor, the collector of the second triode is connected to one end of the twenty-third resistor and the input end of the driving module, the other end of the twenty-second resistor is connected to the output end of the first signal isolation module and the emitter of the third triode, and the other end of the twenty-third resistor is connected to the first isolation power supply; The emitter of the third triode is connected to the output end of the first signal isolation module, the base of the third triode is connected to one end of the twenty-fourth resistor, the collector of the third triode is connected to one end of the twenty-fifth resistor and the input end of the driving module, the other end of the twenty-fourth resistor is connected to the output end of the first signal isolation module, the emitter of the second triode and the other end of the twentieth resistor, and the other end of the twenty-fifth resistor is connected to the first isolation power supply; The emitter of the fourth triode is connected to the output end of the first signal isolation module, the base of the fourth triode is connected to one end of the twenty-sixth resistor, the collector of the fourth triode is connected to one end of the twenty-seventh resistor and the input end of the driving module, the other end of the twenty-sixth resistor is connected to the output end of the second signal isolation module and the emitter of the fifth triode, and the other end of the twenty-seventh resistor is grounded; The emitter of the fifth transistor is connected to the output end of the second signal isolation module, the base of the fifth transistor is connected to one end of the twenty-eighth resistor, the collector of the fifth transistor is connected to one end of the twenty-ninth resistor and the input end of the driving module, the other end of the twenty-eighth resistor is connected to the output end of the first signal isolation module and the emitter of the fourth transistor, and the other end of the twenty-ninth resistor is connected to the first isolation power supply.

11. The relay control circuit according to claim 9 or 10, characterized in that: The driving module includes a driving chip; The collector of the first triode and one end of the twenty-first resistor are connected to the first pin of the driving chip, the collector of the second triode and one end of the twenty-third resistor are connected to the second pin of the driving chip, the collector of the third triode and one end of the twenty-fifth resistor are connected to the third pin of the driving chip, the collector of the fourth triode and one end of the twenty-seventh resistor are connected to the fourth pin of the driving chip, and the collector of the fifth triode and one end of the twenty-ninth resistor are connected to the fifth pin of the driving chip; The sixth pin, the seventh pin, the eighth pin, the ninth pin and the tenth pin of the driving chip are connected to the input end of the relay module.

12. The relay control circuit according to claim 11, characterized in that: The relay module includes a first sub-relay module and a second sub-relay module; The first input end of the first sub-relay module is connected to the sixth pin of the driving chip, the second input end of the first sub-relay module is connected to the seventh pin of the driving chip, and the third input end of the first sub-relay module is connected to the eighth pin of the driving chip; The first input end of the second sub-relay module is connected to the ninth pin of the driving chip, and the second input end of the second sub-relay module is connected to the tenth pin of the driving chip; The output end of the first sub-relay module and the output end of the second sub-relay module are respectively connected to a power source.

13. The relay control circuit according to claim 12, characterized in that: The first sub-relay module includes a first relay, a first diode, a second diode, a third diode, a fourth diode, an eleventh capacitor and a twelfth capacitor; The second sub-relay module includes a second relay, a fifth diode, a sixth diode and a thirteenth capacitor; The first end of the first relay is respectively connected to the sixth pin of the driving chip, the anode of the first diode, the anode of the third diode, the first end of the eleventh capacitor and the first end of the twelfth capacitor; The second end of the first relay is connected to the seventh pin of the driving chip, the anode of the second diode and the second end of the eleventh capacitor respectively, and the cathode of the first diode is connected to the cathode of the second diode; The third end of the first relay is connected to the eighth pin of the driving chip, the anode of the fourth diode and the second end of the twelfth capacitor respectively, and the cathode of the third diode is connected to the cathode of the fourth diode; The fourth terminal and the fifth terminal of the first relay are connected to the power supply; The first end of the second relay is connected to the ninth pin of the driving chip, the anode of the fifth diode and the first end of the thirteenth capacitor, the second end of the second relay is connected to the tenth pin of the driving chip, the anode of the sixth diode and the second end of the thirteenth capacitor, and the cathode of the fifth diode is connected to the cathode of the sixth diode; The third terminal and the fourth terminal of the second relay are connected to the power source.

14. The relay control circuit according to claim 1, characterized in that: Also includes: Power supply module; The input end of the power supply module is connected to the initial power supply, and the output end of the power supply module is respectively connected to the signal isolation module, the signal mutual exclusion processing module, the driving module and the relay module; The power supply module is used to generate a power supply, a first isolated power supply and a second isolated power supply.

15. The relay control circuit according to claim 1, characterized in that: Also includes: Control module; The output end of the control module is connected to the input end of the signal isolation module, and the control module is used to generate the initial relay control signal and send the initial relay control signal to the signal isolation module.

16. An energy storage system, characterized in that: It comprises the relay control circuit and power supply as described in any one of claims 1 to 15.

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