ECU power supply compatible with internal and external relays

Abstract

The utility model discloses an ECU power supply compatible with internal and external relays, comprising a first confirmation module comprising an enabling confirmation switch and an internal and external confirmation switch; the built-in relay module comprises a built-in power supply; the external relay module comprises an external power supply; a common module; a power receiving module; the ECU power supply capable of being compatible with the internal and external relays comprises an internal relay starting state and an external relay starting state. According to the utility model, through flexible and switchable arrangement of the internal relay and the external relay, advantages of an independent internal relay or an external relay can be considered, and defects of the independent internal relay or the external relay can be made up; meanwhile, an internal and external common module is arranged, and the circuit cost and occupied space are optimized.

Description

Technical Field

[0001] The utility model relates to the field of ECU power supply circuit design, in particular to an ECU power supply capable of being compatible with internal and external relays. Background Art

[0002] The existing external ECU power supply has the advantages of improved heat dissipation, increased safety, convenient maintenance and replacement, reduced electromagnetic interference, and strong scalability, but it also has the disadvantages of increased cost, increased system complexity, installation space limitations, and environmental exposure risks; the internal ECU power supply has the advantages of high space utilization, simplified wiring, improved system integration, and reduced external interference, but has low scalability.

[0003] It would be inconvenient for users to use internal and external power supplies separately; and simply combining the internal and external power supplies would not only fail to solve the problem, but would also cause a large amount of limited space in the engine compartment, increase complexity, and cause large interference.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide an ECU power supply which is compatible with internal and external relays and can solve the problems existing in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides an ECU power supply that is compatible with internal and external relays, characterized in that it includes: a first confirmation module, including an enable confirmation switch and an internal and external confirmation switch; a built-in relay module, the built-in relay module includes a built-in power supply; an external relay module, the external relay module includes an external power supply; a common module; a power receiving module; wherein the ECU power supply that is compatible with internal and external relays includes the following states: when in the first state, the enable confirmation switch is in an on state, the internal and external confirmation switch is electrically connected to the built-in relay module, and there is a potential difference between the built-in power supply and the power receiving module; when in the second state, the enable confirmation switch is in an on state, the internal and external confirmation switch is electrically connected to the external relay module, and there is a potential difference between the external power supply and the power receiving module.

[0007] In one or more embodiments, the common module includes an anti-reverse protection unit, a TVS, a filter and a power distribution unit, and the anti-reverse protection unit, the TVS and the filter are connected in sequence.

[0008] In one or more embodiments, the built-in relay module also includes a main MOS tube, the built-in power supply is electrically connected to the anti-reverse circuit of the common module, the filter of the common module is electrically connected to the main MOS tube, and the main MOS tube is electrically connected to the power supply distribution unit.

[0009] In one or more embodiments, the internal and external confirmation switches of the first confirmation module are electrically connected to the main MOS tube.

[0010] In one or more embodiments, the external relay module further includes an external relay body, and the external power supply is electrically connected to the external relay.

[0011] In one or more embodiments, the external relay module further includes an external MOS tube, and the internal and external confirmation switches of the first confirmation module are electrically connected to the external MOS tube.

[0012] In one or more implementations, the external MOS tube is electrically connected to the external relay, the external relay is electrically connected to the anti-reverse function, and the filter is electrically connected to the power distribution unit.

[0013] In one or more embodiments, the power distribution unit is electrically connected to the power receiving module.

[0014] In one or more embodiments, the bootstrap circuit module is disposed at an output control signal terminal of the first confirmation module, and the bootstrap circuit module is used to stabilize the voltage of the signal of the first confirmation module.

[0015] In one or more embodiments, the power receiving module includes a single chip microcomputer, the single chip microcomputer includes a second confirmation unit, the second confirmation unit is electrically connected to the first confirmation module, and the second confirmation unit is used to confirm the object connected to the internal and external confirmation switches of the first confirmation module.

[0016] Compared with the prior art, the multiple technical solutions and embodiments provided by the present invention at least include the following technical effects or advantages:

[0017] By setting up internal and external relays to switch the ECU power supply, users can adjust it according to their needs. The internal and external solutions can complement each other's advantages and disadvantages to achieve the effects of improving heat dissipation, improving safety, facilitating maintenance and replacement, reducing electromagnetic interference, simplifying wiring, improving system integration, and reducing external interference. At the same time, setting up shared modules can reduce the number of redundant components, improve scalability and space utilization, and reduce costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and can be considered as illustrative of various combinations of preferred embodiments and do not constitute an improper limitation on the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the overall system connection relationship of an ECU power supply that is compatible with internal and external relays provided by the utility model;

[0020] Figure 2 A schematic diagram of the connection relationship of the built-in system when the ECU power supply that is compatible with internal and external relays provided by the utility model is in the first state;

[0021] Figure 3 A schematic diagram of the connection relationship of an external system when the ECU power supply that is compatible with internal and external relays provided by the utility model is in the second state;

[0022] The numbers in the figure represent: 1-first confirmation module, 11-internal and external confirmation switch, 12-enable confirmation switch, 13-bootstrap circuit module, 2-power receiving module, 21-single chip microcomputer, 211-second confirmation unit, 31-external power supply, 32-external MOS tube, 33-external relay body, 41-built-in power supply, 42-main MOS tube, 51-power supply distribution unit. DETAILED DESCRIPTION

[0023] Unless explicitly stated otherwise, throughout the specification and claims, the term "comprise" or its variations such as "include" or "comprising", "made of", etc. will be understood to include the stated elements or components but not to exclude other elements or other components.

[0024] The purpose of the utility model is to provide an ECU power supply that is compatible with internal and external relays, so as to improve heat dissipation, enhance safety, facilitate maintenance and replacement, reduce electromagnetic interference, simplify wiring, improve system integration, reduce external interference, and improve scalability and space utilization. Example

[0025] The present embodiment provides an ECU power supply that is compatible with internal and external relays, including: a first confirmation module 1, including an enable confirmation switch 12 and an internal and external confirmation switch 11; a built-in relay module, the built-in relay module including a built-in power supply 41; an external relay module, the external relay module including an external power supply 31; a common module; a power receiving module 2; wherein the ECU power supply that is compatible with internal and external relays includes the following states: when in the first state, the enable confirmation switch 12 is in the on state, the internal and external confirmation switch 11 is electrically connected to the built-in relay module, and there is a potential difference between the built-in power supply 41 and the power receiving module 2; when in the second state, the enable confirmation switch 12 is in the on state, the internal and external confirmation switch 11 is electrically connected to the external relay module, and there is a potential difference between the external power supply 31 and the power receiving module 2.

[0026] Specifically, Figure 1 , 2 As shown in Figure 3, in order to solve the problem in the prior art that the user uses the internal and external power supplies separately, which causes inconvenience in use; and simply combining the internal and external power supplies 31 not only fails to solve the problem, but also leads to a large occupation of the limited space in the engine compartment, increased complexity, and large interference. The present embodiment sets a first confirmation module 1 for controlling the single-chip microcomputer 21 to enable and switch the internal and external modes. The user can flexibly select the internal and external modes according to needs. The present embodiment sets a delay in the program during the mode switching process to achieve a hot switching effect without disconnecting the power supply, and the electrical control responds quickly to achieve a seamless connection between the internal and external modes. Therefore, it is possible to take advantage of the advantages and avoid the disadvantages, only utilizing the advantages of the internal or external, and switching in time before the defects of the internal and external are manifested.

[0027] Further, if Figure 2 , 3 As shown, in the first state, i.e., the built-in state, the external relay module is powered off; in the second state, i.e., the external state, the built-in relay module is powered off. The internal and external modes will not appear at the same time. In this embodiment, a shared module is provided, and some components are shared by the internal and external modes, so as to save space and reduce costs.

[0028] In this embodiment, preferably, the power receiving module 2 includes a single chip microcomputer 21, and the single chip microcomputer 21 includes a second confirmation unit 211. The second confirmation unit 211 is electrically connected to the first confirmation module 1, and the second confirmation unit 211 is used to confirm the object connected to the internal and external confirmation switch 11 of the first confirmation module 1. The first confirmation module 1 receives an external signal to confirm the internal and external power supply mode, and at the same time confirms the switch of the single chip microcomputer 21. Specifically, the single chip microcomputer 21 enable pin is controlled to start through the enable confirmation switch 12, and the enable end of the single chip microcomputer 21 is in an open state. After receiving power, it can automatically receive the sensor signal to calculate the most preferred internal and external mode, and control the first confirmation module 1 through the second confirmation unit 211 for automatic regulation.

[0029] As a preferred implementation of this embodiment, the common module includes an anti-reverse protection, a TVS, a filter and a power distribution unit 51, and the anti-reverse protection, TVS and filter are connected in sequence. Preferably, the power distribution unit 51 is electrically connected to the power receiving module 2.

[0030] Specifically, the anti-reverse circuit is called the anti-reverse connection circuit, the TVS refers to the transient voltage suppression diode, also known as the TVS diode, which is a protective electronic component that can protect electrical equipment from voltage spikes introduced by wires; the filter can preferably use a π-shaped filter. In this embodiment, the power supply not only supplies the single-chip microcomputer 21 but also supplies power to the drive.

[0031] As a preferred implementation manner of this embodiment, the built-in relay module also includes a main MOS tube 42, the built-in power supply 41 is electrically connected to the anti-reverse electrical connection of the common module, the filter of the common module is electrically connected to the main MOS tube 42, and the main MOS tube 42 is electrically connected to the power supply distribution unit 51; preferably, the internal and external confirmation switches 11 of the first confirmation module 1 are electrically controlled to connect the main MOS tube 42.

[0032] Specifically, Figure 2 As shown, when the system is in the first state, the current of the built-in power supply 41 flows to the anti-reverse, TVS, filter, main MOS tube 42, power supply distribution unit 51 to the power receiving module 2 in sequence, and the internal and external confirmation switch 11 is connected to the main MOS tube 42 and disconnected from the external relay module.

[0033] As a preferred implementation mode of this embodiment, the external relay module also includes an external relay body 33, and the external power supply 31 is electrically connected to the external relay; preferably, the external relay module also includes an external MOS tube 32, and the internal and external confirmation switches 11 of the first confirmation module 1 are electrically controlled to be connected to the external MOS tube 32; preferably, the external MOS tube is electrically connected to the external relay, the external relay is electrically connected to the anti-reverse, and the filter is electrically connected to the power supply distribution unit 51.

[0034] Specifically, Figure 3 As shown, when the system is in the second state, the current of the external power supply 31 flows to the external MOS tube 32, the external relay body 33, the anti-reverse, TVS, the filter, the power supply distribution unit 51 to the power receiving module 2 in sequence, and the internal and external confirmation switch 11 is connected to the external MOS tube 32 and disconnected from the built-in relay module.

[0035] As a preferred implementation of this embodiment, the ECU power supply that is compatible with internal and external relays also includes a bootstrap circuit module 13, which is arranged at the output control signal end of the first confirmation module 1, and the bootstrap circuit module 13 is used to stabilize the voltage of the signal of the first confirmation module. Specifically, the bootstrap circuit is also called a boost circuit, which uses electronic components such as bootstrap boost diodes and bootstrap boost capacitors to superimpose the capacitor discharge voltage and the power supply voltage, thereby increasing the voltage. The voltage increased by some circuits can reach several times the power supply voltage, and the bootstrap module can amplify the voltage to prevent the voltage from being too small.

[0036] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. An ECU power supply that is compatible with internal and external relays, characterized in that: include: The first confirmation module includes an enabling confirmation switch and an internal and external confirmation switch; A built-in relay module, the built-in relay module comprising a built-in power supply; An external relay module, the external relay module comprising an external power supply; Shared modules; Power receiving module; The ECU power supply that is compatible with internal and external relays includes the following states: When in the first state, the enabling confirmation switch is in the on state, the internal and external confirmation switch is electrically connected to the built-in relay module, and there is a potential difference between the built-in power supply and the power receiving module; When in the second state, the enable confirmation switch is in an on state, the internal and external confirmation switch is electrically connected to the external relay module, and there is a potential difference between the external power supply and the power receiving module.

2. An ECU power supply capable of being compatible with internal and external relays as claimed in claim 1, characterized in that: The power receiving module includes a single chip microcomputer, the single chip microcomputer includes a second confirmation unit, the second confirmation unit is electrically connected to the first confirmation module, and the second confirmation unit is used to confirm the object to which the internal and external confirmation switches of the first confirmation module are connected.

3. An ECU power supply capable of being compatible with internal and external relays as claimed in claim 2, characterized in that: The common module includes an anti-reverse protection, a TVS, a filter and a power supply distribution unit, and the anti-reverse protection, the TVS and the filter are connected in sequence.

4. An ECU power supply capable of being compatible with internal and external relays as claimed in claim 3, characterized in that: The built-in relay module also includes a main MOS tube, the built-in power supply is electrically connected to the anti-reverse electrical connection of the common module, the filter of the common module is electrically connected to the main MOS tube, and the main MOS tube is electrically connected to the power supply distribution unit.

5. An ECU power supply capable of being compatible with internal and external relays as claimed in claim 4, characterized in that: The internal and external confirmation switches of the first confirmation module are electrically connected to the main MOS tube.

6. The ECU power supply capable of being compatible with internal and external relays as claimed in claim 5, characterized in that: The external relay module also includes an external relay body, and the external power supply is electrically connected to the external relay.

7. An ECU power supply capable of being compatible with internal and external relays as claimed in claim 6, characterized in that: The external relay module also includes an external MOS tube, and the internal and external confirmation switches of the first confirmation module are electrically connected to the external MOS tube.

8. An ECU power supply capable of being compatible with internal and external relays as claimed in claim 7, characterized in that: The external MOS tube is electrically connected to the external relay, the external relay is electrically connected to the anti-reverse function, and the filter is electrically connected to the power supply distribution unit.

9. An ECU power supply capable of being compatible with internal and external relays as claimed in claim 8, characterized in that: The power distribution unit is electrically connected to the power receiving module.

10. An ECU power supply capable of being compatible with internal and external relays as claimed in any one of claims 1 to 9, characterized in that: It also includes a bootstrap circuit module, which is arranged at the output control signal end of the first confirmation module and is used to stabilize the voltage of the signal of the first confirmation module.

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