Power signal wall box

Abstract

The utility model provides a power supply signal wall box. The power supply signal wall box comprises a plurality of vehicle exterior power supply access ends and a plurality of vehicle interior power supply output ends, the external power supply access ends and the internal power supply output ends are connected in a one-to-one correspondence manner, and contactors are arranged in passages between the external power supply access ends and the internal power supply output ends; the external power supply access end is used for accessing an external power supply; the in-vehicle power supply output end is used for being connected with a load; the power signal wall box further comprises a plurality of in-vehicle power input ends and a plurality of out-vehicle power output ends. And the in-vehicle power supply access ends are connected with the out-vehicle power supply output ends in a one-to-one correspondence manner. According to the utility model, multiple power supply channels are arranged, and an external power supply is used for realizing multi-channel power supply for the vehicle-mounted platform, so that the problem of required power of the load of the vehicle-mounted platform is solved. In addition, multiple output paths are arranged, and paths for outputting electric energy outwards are provided for the vehicle-mounted platform.

Description

Power signal wall box Technical Field

[0001] This utility model relates to the field of power signal wall box technology, and in particular to a power signal wall box. Background Technology

[0002] The power signal box is an integrated power supply and signal management device designed specifically for vehicle-mounted and mobile platforms. It is primarily used to achieve safe connection of power supplies inside and outside the vehicle, load distribution, and signal transfer. Through multiple protection mechanisms and electromagnetic shielding design, it ensures power supply stability and signal transmission reliability in complex environments, and is widely used in military, emergency communications, and engineering vehicles.

[0003] However, products that currently use single-circuit power supply are gradually failing to meet the increasing load power. In addition, existing power signal boxes generally accept power supply from outside the vehicle and lack the ability to allow the vehicle platform to output power to the outside, which will increase the difficulty of power output between vehicle platforms. Summary of the Invention

[0004] The main purpose of this utility model is to provide a power signal box that meets the power requirements of the load and enables the vehicle platform with the power signal box installed to discharge to the outside.

[0005] To achieve the above objectives, the present invention proposes a power signal wall box, which includes:

[0006] Multiple external power input terminals and multiple internal power output terminals;

[0007] The external power input terminal and the internal power output terminal are connected one-to-one, and a contactor is provided in the path between the external power input terminal and the internal power output terminal; the external power input terminal is used to connect to an external power supply; the internal power output terminal is used to connect to a load.

[0008] The power signal box also includes: multiple in-vehicle power input terminals and multiple external power output terminals;

[0009] The in-vehicle power input terminal and the external power output terminal are connected one-to-one.

[0010] Optionally, the power signal box includes: a power detection module and an indicator module;

[0011] The power detection module has multiple input terminals connected to the multiple external power input terminals to detect the voltage value at the external power input terminals; the power detection module has an output terminal connected to the indicator module.

[0012] The power detection module is used to send a first control signal to the indicator module when the voltage value is less than a first preset voltage threshold; the power detection module is also used to send a second control signal to the indicator module when the voltage value is greater than a second preset voltage threshold.

[0013] The indicator module is used to issue an undervoltage indication signal when it receives the first control signal; the indicator module is also used to issue an overvoltage indication signal when it receives the second control signal, so as to indicate the voltage status of the corresponding in-vehicle power output terminal.

[0014] The first preset voltage threshold is less than the second preset voltage threshold.

[0015] Optionally, the power detection module includes: multiple power detection boards;

[0016] The input terminal of the power detection board is connected to the external power supply terminal in a one-to-one correspondence. The power detection board is used to send a first control signal to the indicator module when the voltage value is less than a first preset voltage threshold. The power detection board is also used to send a second control signal to the indicator module when the voltage value is greater than a second preset voltage threshold.

[0017] Optionally, the indication module includes:

[0018] Multiple indicator lights and a buzzer;

[0019] The indicator light is connected to the output terminal of the power detection board and is used to emit corresponding light based on the control signal output by the power detection board according to the voltage value.

[0020] The buzzer is connected to the output terminal of the power detection board and is used to emit a corresponding sound based on the control signal output by the power detection board according to the voltage value.

[0021] Optionally, the power signal box includes: multiple residual current circuit breakers;

[0022] The leakage protection switches are installed in the path between the external power input terminal and the internal power output terminal.

[0023] Optionally, the power signal box includes: multiple surge arresters;

[0024] One end of the surge arrester is connected to the contactor.

[0025] Optionally, a circuit breaker is provided in the path between the in-vehicle power input terminal and the external power output terminal.

[0026] Optionally, the power signal box includes: multiple output indicator lights;

[0027] One end of the output indicator light is connected to the external power output terminal, and is used to illuminate when the power input terminal in the vehicle outputs current to the external power output terminal.

[0028] Optionally, the power signal box further includes: a wired interface, a communication interface, an ignition interface, an external network interface, an internal network interface, a GDT interface, and a satellite communication interface.

[0029] Optionally, the GDT interface and the satellite communication interface are aviation connectors.

[0030] This invention proposes a power signal box, comprising: multiple external power input terminals and multiple internal power output terminals; the external power input terminals and internal power output terminals are connected one-to-one, and a contactor is provided in the path between the external power input terminals and internal power output terminals; the external power input terminals are used to connect to an external power supply; the internal power output terminals are used to connect to a load; the power signal box further includes: multiple internal power input terminals and multiple external power output terminals; the internal power input terminals and external power output terminals are connected one-to-one. This invention solves the power demand problem of the vehicle platform load by setting up multiple power supply channels and using external power supplies to achieve multiple power supply to the vehicle platform. In addition, multiple output paths are set up to provide the vehicle platform with a path to output electrical energy to the outside. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 is a schematic diagram of the first structure of a power signal wall box according to an embodiment of the present invention;

[0033] Figure 2 is a schematic diagram of the second structure of a power signal wall box according to an embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of the third structure of an embodiment of the power signal wall box of this utility model;

[0035] Figure 4 is a schematic diagram of the first structure of another embodiment of the power signal wall box of this utility model;

[0036] Figure 5 is a schematic diagram of the second structure of another embodiment of the power signal wall box of this utility model;

[0037] Figure 6 is a schematic diagram of the third structure of another embodiment of the power signal box of this utility model.

[0038] Figure 7 is a schematic diagram of the fourth structure of another embodiment of the power signal wall box of this utility model;

[0039] Figure 8 is a schematic diagram of the fifth structure of another embodiment of the power signal wall box of this utility model;

[0040] Figure 9 is a schematic diagram of the sixth structure of another embodiment of the power signal wall box of this utility model;

[0041] Figure 10 is a schematic diagram of the seventh structure of another embodiment of the power signal wall box of this utility model.

[0042] Explanation of icon numbers:

[0043] 1. External power input terminal; 2. Internal power output terminal; 3. Internal power input terminal; 4. External power output terminal; 5. Power detection module; 6. Indicator module; 7. Residual current circuit breaker; 8. Surge arrester; 9. Wired interface; 10. Communication interface; 11. Ignition interface; 12. External network interface; 13. Internal network interface; 14. GDT interface; 15. Satellite communication interface; 16. Contactor; 51. Power detection board.

[0044] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0049] The power signal box is an integrated power supply and signal management device specifically designed for vehicle-mounted and mobile platforms. It primarily enables safe connection of power supplies inside and outside the vehicle, load distribution, and signal transfer. Through multiple protection mechanisms and electromagnetic shielding design, it ensures power supply stability and signal transmission reliability in complex environments, and is widely used in military, emergency communications, and engineering vehicles. The power signal box is responsible for information transmission inside and outside the vehicle platform, as well as powering the platform. Currently, most power signal boxes are single-channel power supplies, suitable for situations where the power of equipment within the vehicle platform is relatively low. However, with the upgrading of equipment within vehicle platforms, the required load power is gradually increasing, and single-channel power supply can no longer meet the growing load power. Furthermore, previous power signal boxes only enabled external power supply to the vehicle platform and external communication interaction, lacking the ability for the vehicle platform to output power to other systems.

[0050] This utility model proposes a power signal wall box, the power signal wall box comprising:

[0051] Multiple external power input terminals 1 and multiple internal power output terminals 2;

[0052] The external power input terminal 1 and the internal power output terminal 2 are connected one-to-one. A contactor 16 is provided in the passage between the external power input terminal 1 and the internal power output terminal 2. The external power input terminal 1 is used to connect to an external power supply. The internal power output terminal 2 is used to connect to a load.

[0053] The power signal box also includes: multiple in-vehicle power input terminals 3 and multiple external power output terminals 4;

[0054] The in-vehicle power input terminal 3 and the external power output terminal 4 are connected one-to-one.

[0055] It should be noted that the power signal closure is applied to the vehicle platform, the external power input terminal 1 is used to connect to an external power supply, and the internal power input terminal is connected to the equipment in the vehicle platform; multiple devices in the vehicle platform are allowed to connect to the same internal power input terminal; the number of external power input terminals 1 is the same as the number of internal power output terminals 2. There are multiple external power input terminals 1, and the voltage values ​​of the power supplies connected to each external power input terminal 1 can be the same or different. That is, multiple external power input terminals 1 can be connected to mains power, or multiple external power input terminals 1 can be connected to multiple different power supply voltages. Correspondingly, there are multiple external power supplies, and the output voltage values ​​of multiple external power supplies can be the same or different; this utility model does not limit this. The specific type and output voltage value of the external power supply are determined by the power supply introduced to the vehicle platform where the power signal box is installed in actual application.

[0056] As shown in Figure 1, an external power input terminal 1 and an internal power output terminal 2 form a power supply path. The external power input terminal 1 and the internal power output terminal 2 are connected one-to-one. A contactor 16 is installed in the path between the external power input terminal 1 and the internal power output terminal 2. The contactor 16 is an electromagnetic switch device used for circuit control. When triggered, the contactor 16 controls the opening and closing of the circuit between the external power input terminal 1 and the internal power output terminal 2. Multiple external power input terminals 1 and internal power output terminals 2 together form a multi-path power supply, utilizing multiple external power sources to power the vehicle platform, avoiding the problem that a single power supply cannot meet the power requirements of the vehicle platform equipment. The vehicle platform installed in the power signal box may include a controller, which is connected to the controlled terminal of the contactor 16 and controls the contactor 16 to turn on or off.

[0057] In addition, the power signal box also includes multiple in-vehicle power input terminals 3 and multiple external power output terminals 4. The in-vehicle power input terminals 3 and external power output terminals 4 are connected one-to-one, forming multiple output paths. It is easy to understand that the on-board platform equipment outputs electrical signals to the in-vehicle power input terminals 3; that is, the current value flowing between the in-vehicle power input terminals 3 and the external power output terminals 4 is determined by the on-board platform equipment. Due to the multiple output paths, the voltage value output to the external power output terminal 4 by each output channel can be different. In one example, there are two in-vehicle power input terminals 3 and two external power output terminals 4, forming two output paths; in the first output path, the external power output terminal 4 outputs 220V AC, and in the second output path, the external power output terminal 4 outputs 380V AC. It should be clarified that since the voltage value at the external power output terminal 4 is determined by the on-board platform equipment, the voltage value at the external power output terminal 4 can be changed by adjusting the voltage value output by the on-board equipment.

[0058] It is easy to imagine that the power signal box, through the output path formed by the in-vehicle power input terminal 3 and the external power output terminal 4, allows the vehicle-mounted platform to discharge externally, providing a discharge method that can be used for power rescue, drone charging, and temporary jump-starting. The vehicle-mounted platform with external discharge capability will greatly enhance its ability to rescue other vehicles.

[0059] Considering the size limitations of the power signal box, in one example, the power signal box includes: two external power input terminals 1, two internal power output terminals 2, two internal power input terminals 3, and two external power output terminals 4.

[0060] This utility model proposes a power signal box, which includes: multiple external power input terminals 1 and multiple internal power output terminals 2; the external power input terminals 1 and internal power output terminals 2 are connected one-to-one, and a contactor 16 is provided in the path between the external power input terminals 1 and internal power output terminals 2; the external power input terminals 1 are used to connect to an external power supply; the internal power output terminals 2 are used to connect to a load; the power signal box also includes: multiple internal power input terminals 3 and multiple external power output terminals 4; the internal power input terminals 3 and external power output terminals 4 are connected one-to-one. This utility model solves the power demand problem of the vehicle platform load by setting up multiple power supply channels and using external power supplies to achieve multiple power supply to the vehicle platform. In addition, multiple output paths are set up to provide the vehicle platform with a path to output power to the outside.

[0061] In the first embodiment of this utility model, the power signal wall box includes: a power detection module 5 and an indicator module 6;

[0062] The power detection module 5 has multiple input terminals connected to the multiple external power input terminals 1 to detect the voltage value at the external power input terminal 1; the power detection module 5 has an output terminal connected to the indicator module 6.

[0063] The power detection module 5 is used to send a first control signal to the indicator module 6 when the voltage value is less than a first preset voltage threshold; the power detection module 5 is also used to send a second control signal to the indicator module 6 when the voltage value is greater than a second preset voltage threshold.

[0064] The indicator module 6 is used to issue an undervoltage indication signal when it receives the first control signal; the indicator module 6 is also used to issue an overvoltage indication signal when it receives the second control signal, so as to indicate the voltage status of the corresponding in-vehicle power output terminal.

[0065] The first preset voltage threshold is less than the second preset voltage threshold.

[0066] Referring to Figure 2, the power detection module 5 has multiple input terminals, each connected to a multiple external power access terminal 1. Since the external power access terminal 1 is connected to an external power supply, the voltage output by the external power supply may not meet the operating voltage requirements of the vehicle platform equipment. Therefore, the power detection module 5 is used to detect the voltage value at the external power access terminal 1. It should be noted that since there are multiple external power access terminals 1, the operating voltage requirements of the equipment corresponding to each external power access terminal may be different. Therefore, after detecting the voltage value at the external power access terminal 1, the power detection module 5 determines whether the corresponding external power supply is over-voltage or under-voltage based on the voltage value and the operating voltage requirement range of the vehicle platform equipment corresponding to the external power access terminal 1, and sends a corresponding control signal to the indicator module 6. Specifically, the first preset voltage threshold and the second preset voltage threshold are the upper and lower limits of the operating voltage requirement range.

[0067] After receiving the control signal, the indicator module 6 issues a corresponding indicator signal to indicate the voltage status of the corresponding in-vehicle power output terminal 2. Specifically, when the first control signal is received, an undervoltage indicator signal is issued. The indicator module 6 is also used to issue an overvoltage indicator signal when the second control signal is received to indicate the voltage status of the corresponding in-vehicle power output terminal.

[0068] It should be noted that this utility model, through the hardware circuit in the power detection module 5, determines whether the external power supply corresponding to the external power input terminal is over-voltage or under-voltage upon receiving the voltage value at the external power input terminal, and sends a corresponding control signal to the indicator module 6. The hardware circuit can use an operational amplifier to compare the voltage value at the external power input terminal with a first preset voltage threshold, and output the comparison result to the indicator module 6.

[0069] The indicator module 6 may include multiple indicator sub-units, each corresponding to an external power input terminal 1, to display the voltage status of the external power input terminal 1. Upon receiving a control signal, the indicator module 6 indicates the voltage status of the external power input terminal 1 through the indicator sub-unit corresponding to that terminal. Each indicator sub-unit may include a light source and / or a speaker; the voltage status of the external power input terminal 1 is indicated by a specified combination of light emitted from the light source and / or by sound emitted from the speaker.

[0070] Specifically, it is understandable that in practical scenarios, the power signal box is part of the vehicle platform, responsible for ensuring safe connection, load distribution, and signal transfer between internal and external power sources, guaranteeing power supply stability and signal transmission reliability in complex environments. During actual manufacturing, the allowable voltage range at each external power input terminal 1 of the power signal box is determined based on the operating power of the equipment within the vehicle platform. After detecting the voltage value at the external power input terminal 1, the power detection module 5 can compare the voltage value with the minimum and maximum values ​​of the voltage range to determine whether the external power supply corresponding to the external power input terminal 1 is over-voltage or under-voltage. The power detection module 5 may include a voltage detection circuit.

[0071] The power detection module 5 includes: multiple power detection boards 51;

[0072] The input terminal of the power detection board 51 is connected to the external power access terminal 1 in a one-to-one correspondence. The power detection board 51 is used to send a first control signal to the indicator module 6 when the voltage value is less than a first preset voltage threshold. The power detection board 51 is also used to send a second control signal to the indicator module 6 when the voltage value is greater than a second preset voltage threshold.

[0073] It is readily understood that this invention uses multiple power detection boards 51 to detect the voltage values ​​at multiple external power input terminals 1, and outputs corresponding control signals to the indicator module 6 based on these voltage values. It should be noted that, compared to using a single power detection module 5 to detect the voltage values ​​at multiple external power input terminals 1, multiple power detection boards 51 are connected one-to-one to each of the multiple external power input terminals 1, enabling separate detection of the voltage values ​​at each terminal. This avoids the loss of the ability to detect the voltage values ​​at all external power input terminals 1 if a single power detection module 5 fails. The voltage detection board 51 may include the aforementioned hardware circuitry.

[0074] The indicator module 6 includes: multiple indicator lights and a buzzer;

[0075] The indicator light is connected to the output terminal of the power detection board 51 and is used to emit corresponding light based on the control signal output by the power detection board according to the voltage value.

[0076] The buzzer is connected to the output terminal of the power detection board 51 and is used to emit a corresponding sound based on the control signal output by the power detection board according to the voltage value.

[0077] The indicator lights are connected to the output terminal of the power detection board 51. The number of indicator lights exceeds the number of power detection boards 51, meaning one power detection board 51 can connect to multiple indicator lights. The power detection board 51 outputs corresponding control signals to the indicator lights connected to it based on the voltage value, controlling the indicator lights to emit light according to the light emission combination corresponding to the control signal. For example, if the power detection board 51 connects to two indicator lights, and it detects the voltage at the corresponding external voltage input terminal, it controls the first indicator light to illuminate; if it detects overvoltage or undervoltage at the corresponding external voltage input terminal, it controls the second indicator light to illuminate. It is easy to understand that since the external power input terminal 1 is connected to an external power supply, the voltage value at the external power input terminal 1 is the voltage value of the corresponding external power supply.

[0078] It should be noted that the number of indicator lights connected to each power detection board 51 may vary. The buzzer is used to emit sound. Correspondingly, considering that a buzzer can transmit information by emitting different sounds, the number of buzzers may be less than or equal to the number of voltage detection boards.

[0079] As shown in Figure 3, the power signal box includes: multiple residual current circuit breakers 7;

[0080] The leakage protection switch 7 is installed in the path between the external power input terminal 1 and the internal power output terminal 2. The leakage protection switch detects leakage current in the path between the external power input terminal 1 and the internal power output terminal 2, and can reliably detect leakage current in the vehicle platform when power is supplied. When the leakage current reaches 50% to 100% of the rated protection value, it can automatically cut off the power input.

[0081] The power signal box includes: multiple surge arresters 8;

[0082] One end of the surge arrester 8 is connected to the contactor 16.

[0083] The surge arrester 8 clamps the voltage to the equipment's withstand level by conducting (e.g., a 10kV surge arrester 8 can limit overvoltage to 20-30kV), preventing the equipment from being subjected to excessively high voltage. The surge arrester 8 internally uses nonlinear resistive materials (such as zinc oxide varistors or silicon carbide), exhibiting high resistance (approximately open circuit) under normal voltage. When the voltage exceeds a threshold, the resistance drops sharply, conducting current. Utilizing the Joule effect or gas discharge principle of the material, the overvoltage energy is converted into heat or light energy for dissipation. The surge arrester 8 prevents transient overvoltages from entering the vehicle platform and damaging the equipment on the platform.

[0084] A circuit breaker is installed in the path between the in-vehicle power input terminal 3 and the external power output terminal 4. To prevent the external power output terminal 4 from being incorrectly short-circuited, causing a circuit break and resulting in overcurrent in the path between the in-vehicle power input terminal 3 and the external power output terminal 4, a circuit breaker is installed in the path. The circuit breaker automatically cuts off the power supply and protects the circuit when an overload or short circuit occurs.

[0085] To provide operators with a clear signal indicating that the vehicle-mounted platform is supplying power, the power signal box includes: multiple output indicator lights;

[0086] One end of the output indicator light is connected to the external power output terminal 4, and it illuminates when the internal power input terminal 3 outputs current to the external power output terminal 4. It is easy to understand that when the internal power input terminal 3 outputs current to the external power output terminal 4, a portion of the current enters the output indicator light, causing it to illuminate. Each of the multiple output indicator lights is connected one-to-one to one of the multiple external power output terminals 4.

[0087] The power signal box also includes: a wired interface 9, a communication interface 10, an ignition interface 11, an external network interface 12, an internal network interface 13, a GDT interface 14, and a satellite communication interface 1510. The wired interface 9 supports traditional analog signal transmission (such as telephone, low-speed control signals) and is compatible with older equipment. The communication interface 10 is used for data interaction with external vehicles or equipment, transmitting control commands or status information. The ignition interface 11 is used to transmit start signals to trigger external devices (such as engines, ignition systems). The external network interface 12 is used to access an external wide area network (such as the Internet), supporting remote data transmission or cloud services. The internal network interface 13 provides a 100Mbps / 1Gbps Ethernet connection, supporting communication of in-vehicle local area network devices (such as monitoring systems, smart terminals). The GDT interface 14 is used to connect a gas discharge tube (GDT) for lightning and surge protection, ensuring signal line safety; the GDT interface 14 can be used with a surge arrester 8, providing a discharge channel for the surge arrester 8. The satellite communication interface 1510 is used to access satellite communication equipment, supporting wireless communication in remote areas or mobile scenarios, as shown in Figure 4.

[0088] The GDT interface 14 and the satellite communication interface 1510 are aviation connectors. When installing the aviation connectors, the longer end faces the inside of the vehicle platform and is connected to the reverse sequence connector; the shorter end faces the outside of the vehicle platform and is connected to the forward sequence connector.

[0089] In one example, the power signal box includes two external power input terminals 1, two internal power output terminals 2, two internal power input terminals 3, and two external power output terminals 4; wherein, the external power input terminals 1 are connected to AC power, and the two external power output terminals 4 output 220V AC and 380V AC power respectively. As shown in Figures 5 to 10, this utility model provides structural diagrams of the power signal box. Figure 10 is a front view of the power signal box, Figure 9 is a rear view of the power signal box, Figure 5 is the upper half (top view) of the front structure and interfaces of the power signal box, Figure 6 is the lower half (top view) of the front structure and interfaces of the power signal box, Figure 7 is a right view of the power signal box, and Figure 8 is a partial schematic diagram of Figure 7 (open cover state). Figures 5 and 6 can be combined to form a complete schematic diagram (top view) of the front structure and interfaces of the power signal box.

[0090] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A power signal wall box, characterized in that, The power signal box includes: multiple external power input terminals and multiple internal power output terminals; the external power input terminals and internal power output terminals are connected one-to-one, and a contactor is provided in the path between the external power input terminals and the internal power output terminals; the external power input terminals are used to connect to an external power supply; the internal power output terminals are used to connect to a load; the power signal box further includes: multiple internal power input terminals and multiple external power output terminals; the internal power input terminals and external power output terminals are connected one-to-one.

2. The power signal box as described in claim 1, characterized in that, The power signal box includes a power detection module and an indicator module. Multiple input terminals of the power detection module are connected to multiple external power input terminals to detect the voltage value at each external power input terminal. The output terminal of the power detection module is connected to the indicator module. The power detection module sends a first control signal to the indicator module when the voltage value is less than a first preset voltage threshold. The power detection module also sends a second control signal to the indicator module when the voltage value is greater than a second preset voltage threshold. The indicator module sends an undervoltage indication signal upon receiving the first control signal. The indicator module also sends an overvoltage indication signal upon receiving the second control signal to indicate the voltage status of the corresponding in-vehicle power output terminal. The first preset voltage threshold is less than the second preset voltage threshold.

3. The power signal wall box as described in claim 2, characterized in that, The power detection module includes: multiple power detection boards; the input terminals of the power detection boards are connected one-to-one with the external power supply terminals; the power detection boards are used to send a first control signal to the indicator module when the voltage value is less than a first preset voltage threshold; the power detection boards are also used to send a second control signal to the indicator module when the voltage value is greater than a second preset voltage threshold.

4. The power signal box as described in claim 3, characterized in that, The indicator module includes: multiple indicator lights and a buzzer; the indicator lights are connected to the output terminal of the power detection board and are used to emit corresponding light based on the control signal output by the power detection board according to the voltage value; the buzzer is connected to the output terminal of the power detection board and is used to emit corresponding sound based on the control signal output by the power detection board according to the voltage value.

5. The power signal wall box as described in any one of claims 1 to 4, characterized in that, The power signal box includes multiple leakage protection switches; each leakage protection switch is installed in the path between the external power input terminal and the internal power output terminal.

6. The power signal box as described in any one of claims 1 to 4, characterized in that, The power signal box includes: multiple surge arresters; one end of each surge arrester is connected to the contactor.

7. The power signal box as described in any one of claims 1 to 4, characterized in that, A circuit breaker is installed in the path between the in-vehicle power input terminal and the external power output terminal.

8. The power signal box as described in claim 7, characterized in that, The power signal box includes multiple output indicator lights; one end of each output indicator light is connected to the external power output terminal and is used to emit light when the power input terminal in the vehicle outputs current to the external power output terminal.

9. The power signal box as described in any one of claims 1 to 4, characterized in that, The power signal box also includes: a wired interface, a communication interface, an ignition interface, an external network interface, an internal network interface, a GDT interface, and a satellite communication interface.

10. The power signal box as described in claim 9, characterized in that, The GDT interface and the satellite communication interface are aviation connectors.

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