Gateway equipment

Abstract

The utility model discloses gateway equipment, and relates to the technical field of gateway equipment, an alarm circuit is connected between a positive terminal and a negative terminal of the gateway equipment, and a gateway load is connected between the positive terminal and the negative terminal so as to be connected with the alarm circuit in parallel. The alarm circuit can output alarm prompt information when the voltage of the positive terminal is smaller than the voltage of the negative terminal.

Description

Technical Field

[0001] This application relates to the field of gateway device technology, and more specifically, to a gateway device. Background Art

[0002] A gateway device is an electronic device that acts as a converter. The power supply passes through at least two patch panels to the gateway device. The patch panels are numbered with only a combination of numbers and letters. When the positive and negative power supplies are reversed during wiring, subsequent debugging requires reverse checking of the wiring to confirm the problem. In more complex systems, this reverse checking is very time-consuming and labor-intensive. Utility Model Content

[0003] In view of this, this application provides a gateway device, the solution of which is as follows:

[0004] A gateway device, comprising:

[0005] An alarm circuit connected between the positive and negative terminals of the gateway device;

[0006] The gateway load is connected between the positive and negative terminals. When the voltage at the positive terminal of the gateway load is greater than the voltage at the negative terminal, a conductive path is formed.

[0007] The alarm circuit is used to output an alarm message when the voltage at the positive terminal is lower than the voltage at the negative terminal.

[0008] Optionally, in the aforementioned gateway device, the alarm circuit includes:

[0009] At least one alarm branch, the alarm branch having a switching device and an alarm device connected in series between the positive terminal and the negative terminal;

[0010] The switching device is turned off when the voltage at the positive terminal is greater than the voltage at the negative terminal, and turned on when the voltage at the positive terminal is less than the voltage at the negative terminal. When the switching device is turned on, the alarm device outputs an alarm message to indicate that the voltage at the positive terminal and the negative terminal are reversed.

[0011] Optionally, the gateway device described above has multiple parallel alarm branches, and the alarm devices in the different alarm branches are different.

[0012] Optionally, in the above-mentioned gateway device, the switching device is a switching diode, with the positive terminal of the switching diode connected to the negative terminal and the negative terminal of the switching diode connected to the positive terminal.

[0013] Optionally, in the aforementioned gateway device, the alarm device is at least one of a light-emitting diode, a buzzer, and a vibrator.

[0014] Optionally, in the aforementioned gateway device, the alarm branch also includes a protective resistor connected in series with the alarm device and the switching device.

[0015] Optionally, in the above-mentioned gateway device, the gateway load includes a first protection device, the positive terminal of the first protection device is connected to the positive terminal, and the negative terminal of the first protection device is connected to the negative terminal.

[0016] The first protection device is used to turn on when the voltage at the positive terminal is greater than the voltage at the negative terminal, and to turn off when the voltage at the positive terminal is less than the voltage at the negative terminal.

[0017] Optionally, the gateway device described above also includes:

[0018] An electrostatic discharge protection branch connected between the positive and negative terminals.

[0019] Optionally, the gateway device described above also includes:

[0020] Surge voltage protection branch connected between the positive and negative terminals.

[0021] Optionally, in the above-mentioned gateway device, the gateway device has a housing, and the housing contains a gateway motherboard;

[0022] The alarm circuit is located on the gateway motherboard, and the housing has multiple through holes for outputting alarm prompts. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0024] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this application can produce, should still fall within the scope of the technical content disclosed in this application.

[0025] Figure 1 This is a schematic diagram of the structure of a gateway device provided in an embodiment of this application;

[0026] Figure 2 This is a schematic diagram of another gateway device provided in an embodiment of this application;

[0027] Figure 3 This is a schematic diagram of the structure of another gateway device provided in an embodiment of this application;

[0028] Figure 4 This is a schematic diagram of the structure of another gateway device provided in an embodiment of this application;

[0029] Figure 5 This is a schematic diagram of the structure of another gateway device provided in an embodiment of this application;

[0030] Figure 6 This is a schematic diagram of the structure of another gateway device provided in an embodiment of this application;

[0031] Figure 7 This is a schematic diagram of the structure of another gateway device provided in an embodiment of this application. Detailed Implementation

[0032] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0033] In this embodiment, the gateway device can be an industrial gateway. An industrial gateway is a key device connecting the Internet of Things (IoT) and industrial control systems. Industrial gateways can be used to collect, store, process, and analyze data at the network edge, reducing reliance on cloud resources and accelerating response times; they can also support remote control and monitoring functions, allowing users to manage and monitor the status of equipment in the industrial field from a remote location.

[0034] Industrial gateways are typically integrated directly into other customer electronic devices, often using Phoenix terminal blocks for DC power supply. When using Phoenix terminal blocks, wiring requires a patch panel and usually involves at least two wiring operations. The first wiring connects the cable to the patch panel, ensuring the cable is straight and neat, and that the connections are secure. The second wiring connects the cable to the other side of the patch panel, ensuring the cable correctly aligns with the device port. This typically involves connecting bare wires to the ports on the patch panel and marking them on the panel for identification, facilitating future inspection and maintenance.

[0035] Because the patch panel has a large number of cables connected to it, if the positive and negative terminals of the gateway device are reversed, even if there are wiring markings on the patch panel, maintenance personnel will need to spend a considerable amount of time checking the wiring to determine that the circuit system fault is caused by the reversed positive and negative terminals of the gateway device.

[0036] In view of this, the present application provides a novel gateway device with reverse connection alarm function, comprising:

[0037] An alarm circuit connected between the positive and negative terminals of the gateway device;

[0038] The gateway load is connected between the positive and negative terminals. When the voltage at the positive terminal of the gateway load is greater than the voltage at the negative terminal, a conductive path is formed.

[0039] The alarm circuit is used to output an alarm message when the voltage at the positive terminal is lower than the voltage at the negative terminal.

[0040] The gateway device provided in this application embodiment includes an alarm circuit connected in parallel with the gateway load. This alarm circuit outputs an alarm message when the voltage at the positive terminal is lower than the voltage at the negative terminal. The technical solution of this application can use the alarm message output by the alarm circuit to indicate a reverse connection problem between the positive and negative terminals of the gateway device, facilitating rapid identification of this issue. Furthermore, based on the alarm message, the location of the gateway device with the reverse connection problem within the circuit system can be quickly determined, facilitating rapid location of the gateway device in complex circuit systems and improving work efficiency.

[0041] It should be noted that the gateway device in this application embodiment is not limited to an industrial gateway, but can also be a non-industrial gateway used in a home or office environment. This application embodiment does not limit the type of gateway device or the application scenario.

[0042] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0043] refer to Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a gateway device provided in an embodiment of this application. Figure 1 The gateway device shown includes:

[0044] Alarm circuit 11 is connected between the positive terminal +VIN and the negative terminal -VIN of the gateway device;

[0045] Gateway load 12 is connected between the positive terminal +VIN and the negative terminal -VIN. When the voltage at the positive terminal +VIN is greater than the voltage at the negative terminal -VIN, a conductive path is formed in the gateway load 12.

[0046] The alarm circuit 11 is used to output an alarm message when the voltage at the positive terminal +VIN is less than the voltage at the negative terminal -VIN.

[0047] If the positive terminal (+VIN) is connected to the positive power supply and the negative terminal (-VIN) is connected to the negative power supply, the gateway device will operate normally with its positive and negative terminals reversed. The voltage at the positive terminal (+VIN) will be greater than the voltage at the negative terminal (-VIN). Conversely, if the positive terminal (+VIN) is connected to the negative power supply and the negative terminal (-VIN) is connected to the negative power supply, the gateway device will not operate normally with its positive and negative terminals reversed.

[0048] exist Figure 1 The gateway device shown includes an alarm circuit 11 connected in parallel with the gateway load 12. The alarm circuit 11 outputs an alarm message when the voltage at the positive terminal +VIN is less than the voltage at the negative terminal -VIN. Therefore, the alarm message output by the alarm circuit 11 indicates a reverse connection problem between the positive terminal +VIN and the negative terminal -VIN of the gateway device, facilitating rapid identification of this issue. Furthermore, based on the alarm message, the location of the gateway device with the reverse connection problem within the circuit system can be quickly determined, facilitating rapid location of the gateway device in complex circuit systems.

[0049] The alarm information includes visually perceptible light signals and / or audibly perceptible sound signals, so that users can quickly locate the gateway device with a reverse connection problem in a complex circuit system.

[0050] Optionally, if the positive and negative terminals of the gateway device are connected in the correct order, and the voltage of the positive terminal +VIN is greater than the voltage of the negative terminal -VIN, the gateway device can operate normally. In this case, the alarm circuit 11 is turned off and no alarm message is output.

[0051] refer to Figure 2 , Figure 2 This is a schematic diagram of another gateway device provided in an embodiment of this application. Based on any of the above embodiments, Figure 2In the gateway device shown, the alarm circuit 11 includes at least one alarm branch 110, which has a switching device 111 and an alarm device 112 connected in series between the positive terminal +VIN and the negative terminal -VIN. The switching device 111 is turned off when the voltage at the positive terminal +VIN is greater than the voltage at the negative terminal -VIN, and turned on when the voltage at the positive terminal +VIN is less than the voltage at the negative terminal -VIN. When the switching device 111 is turned on, the alarm device 112 outputs an alarm message, which can be used to indicate that the voltages at the positive terminal +VIN and the negative terminal -VIN are reversed.

[0052] exist Figure 2 In the illustrated embodiment, the alarm circuit 11 includes two parallel alarm branches 110 as an example for explanation. It is readily apparent that the gateway device can be configured to have one or more alarm branches 110 as needed; this embodiment does not limit the number of alarm branches 110. If multiple alarm branches 110 are present, they are connected in parallel between the positive terminal +VIN and the negative terminal -VIN.

[0053] The alarm branch 110 includes a switch device 111 and an alarm device 112 connected in series. If the switch device 111 is turned on, the alarm branch 110 is turned on and the alarm device 112 can output an alarm message. Conversely, if the switch device 111 is turned off, the alarm branch 110 is not turned on and the alarm device 112 cannot output an alarm message.

[0054] Figure 2 In the illustrated configuration, the alarm message output by alarm branch 110 can inform the user that there is a reverse connection problem between the positive terminal +VIN and the negative terminal -VIN of the gateway device.

[0055] The alarm circuit 11 has multiple alarm branches 110, which can provide a reverse connection alarm when a reverse connection problem occurs through another part of the alarm branches 110 if some alarm branches 110 are damaged.

[0056] When the alarm circuit 11 is configured to have multiple alarm branches 110, the multiple alarm branches 110 can also be configured to output different types of alarm prompt information, so that users can quickly locate the gateway device that has a reverse connection problem in a complex circuit system.

[0057] In this embodiment, the switching device 111 can be a switching diode. A switching diode is a unidirectional conducting element. If the anode of the switching diode is connected to the positive terminal of the power supply and the cathode of the switching diode is connected to the negative terminal of the power supply, the switching diode can conduct in the forward direction. Conversely, if the anode of the switching diode is connected to the negative terminal of the power supply and the cathode of the switching diode is connected to the positive terminal of the power supply, the switching diode will be turned off in the reverse direction.

[0058] Based on the aforementioned operating characteristics of the switching diode, it can be used as the switching device 111 in alarm branch 110. Within the same alarm branch 110, the negative terminal of the switching diode is connected to the positive terminal +VIN, and the positive terminal is connected to the negative terminal -VIN. Alarm device 112 can be connected between the switching diode and the positive terminal +VIN or between the switching diode and the negative terminal -VIN. Thus, if the positive terminal +VIN and the negative terminal -VIN are connected in reverse, the switching diode is in a reverse off state, alarm branch 110 will not conduct, and alarm device 112 will not output an alarm message. Conversely, if the positive terminal +VIN and the negative terminal -VIN are connected in reverse, the switching diode is in a forward conducting state, alarm branch 110 will conduct, and alarm device 112 will output an alarm message.

[0059] Optionally, in the gateway device, the alarm device 112 is at least one of a light-emitting diode and a buzzer.

[0060] In the same alarm branch 110, the alarm device 112 may include one of a light-emitting diode and a buzzer and a vibrator (vibration motor), or may include any two of the light-emitting diode, buzzer and vibrator, or may include a light-emitting diode, buzzer and vibrator.

[0061] If alarm branch 110 includes a light-emitting diode (LED), the negative terminal of the LED in alarm branch 110 needs to be connected to the positive terminal +VIN, and the positive terminal of the LED needs to be connected to the negative terminal -VIN, so that when the switching device 111 is turned on, the LED is forward-biased and can emit a light signal. If alarm branch 110 includes a buzzer, the negative terminal of the buzzer in alarm branch 110 needs to be connected to the positive terminal +VIN, and the positive terminal of the buzzer needs to be connected to the negative terminal -VIN, so that when the switching device 111 is turned on, the buzzer is forward-biased and can output an audible signal.

[0062] If the gateway device has multiple parallel alarm branches 110, the alarm devices 112 in different alarm branches 110 can be configured to be the same or different.

[0063] If the alarm device 112 includes a light-emitting diode (LED), when a reverse connection problem occurs between the positive terminal +VIN and the negative terminal -VIN of the gateway device, the alarm branch 110 will be turned on, and the LED will emit a light signal as an alarm prompt. This allows the user to intuitively determine that a reverse connection problem has occurred in the gateway device based on the light signal, and to determine the location of the gateway device with the reverse connection problem based on the light signal.

[0064] If the alarm device 112 includes a honeycomb device, when a reverse connection problem occurs between the positive terminal +VIN and the negative terminal -VIN of the gateway device, the alarm branch 110 will be turned on, and the honeycomb device will output an audible signal as an alarm message, so that users can intuitively determine that a reverse connection problem has occurred in the gateway device based on the audible signal, and can also determine the location of the gateway device with the reverse connection problem based on the audible signal.

[0065] refer to Figure 3 , Figure 3 This is a schematic diagram of the structure of another gateway device provided in an embodiment of this application. Figure 2 Based on the implementation method shown, Figure 3 In the gateway device shown, the alarm branch 110 also includes a protective resistor 113 connected in series with the alarm device 112 and the switching device 111. When the alarm branch 110 is on, the protective resistor 113 can reduce the current in the alarm branch 110, preventing excessive current from burning out the alarm device 112 and the switching device 111. When the alarm branch 110 is not on, the protective resistor 113 can reduce the voltage between the positive and negative terminals of the switching device 111 in the alarm branch 110, preventing the switching device 111 from being reverse-biased and broken down.

[0066] If the gateway device has multiple alarm branches 110, and each alarm branch 110 is equipped with a protection resistor 113, the protection resistors 113 in different alarm branches 110 may be the same or different. This application embodiment does not limit this.

[0067] refer to Figure 4 As shown, Figure 4 This is a schematic diagram of another gateway device provided in an embodiment of this application. In any of the above embodiments, Figure 4 In the gateway device shown, the gateway load 12 includes a first protection device 121. The positive terminal of the first protection device 121 is connected to the positive terminal +VIN, and the negative terminal of the first protection device 121 is connected to the negative terminal -VIN. The first protection device 121 is used to turn on when the voltage at the positive terminal +VIN is greater than the voltage at the negative terminal -VIN, and to turn off when the voltage at the positive terminal +VIN is less than the voltage at the negative terminal -VIN.

[0068] exist Figure 4In the illustrated configuration, the first protection device 121 conducts when the voltage at the positive terminal +VIN is greater than the voltage at the negative terminal -VIN, thus forming a circuit when the positive terminal +VIN and the negative terminal -VIN are connected in reverse, allowing the series-connected load device 122 to operate normally. The first protection device 121 also turns off when the voltage at the positive terminal +VIN is less than the voltage at the negative terminal -VIN, thus breaking the circuit when the positive terminal +VIN and the negative terminal -VIN are connected in reverse, thereby disconnecting the series-connected load device 122 from the power supply in the event of a reverse connection problem, preventing damage to the load device 122. Furthermore, in the event of a reverse connection problem, it can also shut down the branch where the gateway load 12 is located, reducing power loss.

[0069] The first protection device 121 can be a switching diode. For the switching diode serving as the first protection device 121, the anode of the switching diode is connected to the anode terminal +VIN, and the cathode of the switching diode is connected to the cathode terminal -VIN. Thus, when the anode terminal +VIN and the cathode terminal -VIN are connected in the correct orientation, the switching diode can conduct in the forward direction; when the anode terminal +VIN and the cathode terminal -VIN are connected in the reverse direction, the switching diode can turn off in the reverse direction.

[0070] In this embodiment, the switching diode can be a Zener diode. Using a Zener diode as the switching diode in the gateway device allows for voltage / current stabilization in the circuit when the Zener diode is turned on. Furthermore, since a Zener diode can have a large resistance when a reverse voltage is applied, it exhibits good reverse breakdown resistance.

[0071] refer to Figure 5 As shown, Figure 5 This is a schematic diagram of another gateway device provided in an embodiment of this application. In any of the above embodiments, Figure 5 The gateway device shown also includes an electrostatic discharge protection branch 13 connected between the positive terminal +VIN and the negative terminal -VIN.

[0072] When the voltage difference between the positive terminal +VIN and the negative terminal -VIN is not greater than the safety threshold, the electrostatic discharge protection branch 13 is in the off state and does not affect the normal operation of the gateway device. When the voltage difference between the positive terminal +VIN and the negative terminal -VIN is greater than the safety threshold, it can clamp the voltage difference between the positive terminal +VIN and the negative terminal -VIN to a safe level, thereby protecting the circuit from damage when the gateway device experiences high-voltage electrostatic discharge.

[0073] Optionally, the electrostatic discharge protection branch 13 is a transient voltage suppressor diode (TVS). TVS has a small capacitance value, typically between 1pF and 3.5pF, which has little impact on the circuit; moreover, TVS is available in various package forms, which can be used for different circuit board layouts and interface types.

[0074] refer to Figure 6 As shown, Figure 6 This is a schematic diagram of another gateway device provided in an embodiment of this application. In any of the above embodiments, Figure 6 The gateway device shown also includes a surge voltage protection branch 14 connected between the positive terminal +VIN and the negative terminal -VIN. When the positive terminal +VIN and the negative terminal -VIN are connected in the correct orientation, the surge voltage protection branch 14 is in the off state during normal operation of the gateway device, and is turned on when a surge voltage occurs. This can add a shunt branch to prevent other electronic components in the gateway device from being burned out by large current.

[0075] When the circuit containing the gateway device is struck by lightning, or when an inductive load is connected or disconnected, a surge voltage exceeding the normal voltage is generated. The surge voltage protection branch 14 can reduce the current in the device to prevent the large current caused by the surge voltage from burning out the device in the circuit.

[0076] Optionally, the surge voltage protection branch 14 can be a Zener diode. In the surge voltage protection branch 14, the positive terminal of the Zener diode is connected to the negative terminal -VIN, and the negative terminal of the Zener diode is connected to the positive terminal +VIN. In this way, when the gateway device is operating normally, the Zener diode is in a high-impedance reverse turn-off state, which does not affect the normal operation of the gateway device. If the voltage across the Zener diode exceeds its breakdown voltage, the Zener diode will provide a low-impedance shunt path.

[0077] refer to Figure 7 , Figure 7 This is a schematic diagram of another gateway device provided in the embodiments of this application. Based on the above embodiments, Figure 7 The gateway device shown has two parallel alarm branches 110, with different alarm devices 112 in each branch. These two alarm branches 110 are designated as the first alarm branch and the second alarm branch, respectively. Each of the two alarm branches 110 has a protection resistor (first protection resistor R1 and second protection resistor R2).

[0078] exist Figure 7In the illustrated configuration, the gateway device includes an electrostatic discharge (ESD) protection branch 13 and a surge voltage protection branch 14. The ESD protection branch 13 is a transient voltage suppressor diode (TVS). The surge voltage protection branch 14 is a third switching diode D5, which can be a Zener diode. In the gateway load 12, the first protection device 121 is a first switching diode D1; the first switching device D1 is a Zener diode; and the load device 122 is a resistor R0.

[0079] The first alarm branch includes a light-emitting diode D2, a first protective resistor R1, and a first switching diode D3 connected in series. In the first alarm branch, the alarm device 112 is the light-emitting diode D2, and the switching device 111 is the first switching diode D3.

[0080] The second alarm branch includes a buzzer HA connected in series, a second protection resistor R2, and a second switching diode D4. In the second alarm branch, the alarm device 112 is the buzzer HA, and the switching device 111 is the second switching diode D4.

[0081] use Figure 7 The gateway device shown, when powered on normally, has a voltage at the positive terminal +VIN greater than the voltage at the negative terminal -VIN. The first switching diode D3 and the second switching diode D4 are reverse-biased and turned off, and the LED D2 and buzzer HA are not working. When the power is reverse-biased, the voltage at the positive terminal +VIN is less than the voltage at the negative terminal -VIN. Both the first switching diode D3 and the second switching diode D4 are forward-biased, and the LED D2 and buzzer HA are working, outputting light and sound signals respectively.

[0082] In addition, the gateway device is also equipped with an electrostatic discharge (ESD) protection branch 13 and a surge voltage protection branch 14. When a surge voltage occurs in the circuit, the surge voltage protection branch 14 can resist the surge voltage. When a high-voltage electrostatic discharge occurs in the circuit, the ESD protection branch 13 can release the static electricity.

[0083] Based on any of the above embodiments, the gateway device has a housing, within which a gateway motherboard is housed; the alarm circuit 11 is disposed on the gateway motherboard, and the housing has multiple through holes for outputting alarm notification information. The housing protects the circuit structure within the gateway device and also allows alarm notification information to be output through the through holes in the housing.

[0084] The through holes are set in a corresponding manner to the alarm devices. This can be understood as the through holes corresponding to the positions of the alarm devices, or as the through holes corresponding to the number of alarm devices. Taking an alarm device as an example, there is an LED, and the housing has a corresponding through hole. The LED is located in the through hole and different states are indicated by different colored lights, such as an alarm by a red light or an alarm by a continuously flashing light.

[0085] Taking a buzzer as an example of an alarm device, there is a buzzer and the housing has a corresponding through hole. The alarm sound of the buzzer is transmitted to the outside of the housing through the through hole to issue an alarm.

[0086] If the gateway device has an electrostatic discharge protection branch 13, the electrostatic discharge protection branch 13 is installed on the gateway motherboard. If the gateway device has a surge voltage protection branch 14, the surge voltage protection branch 14 is installed on the gateway motherboard.

[0087] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0088] It should be noted that, in the description of this application, the accompanying drawings and embodiments are illustrative rather than restrictive. The same reference numerals identify the same structures throughout the embodiments of this specification.

[0089] The terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the middle.

[0090] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0091] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gateway device, characterized in that: include: An alarm circuit connected between the positive terminal and the negative terminal of the gateway device; A gateway load is connected between the positive terminal and the negative terminal, and when the voltage of the positive terminal of the gateway load is greater than the voltage of the negative terminal, a conductive path is formed; The alarm circuit is used to output an alarm prompt message when the voltage at the positive terminal is lower than the voltage at the negative terminal.

2. The gateway device according to claim 1, characterized in that: The alarm circuit comprises: At least one alarm branch, the alarm branch having a switch device and an alarm device connected in series between the positive electrode terminal and the negative electrode terminal; Among them, the switching device is turned off when the voltage at the positive terminal is greater than the voltage at the negative terminal, and the switching device is turned on when the voltage at the positive terminal is less than the voltage at the negative terminal; when the switching device is turned on, the alarm device outputs the alarm prompt information to indicate that the voltages of the positive terminal and the negative terminal are reversed.

3. The gateway device according to claim 2, characterized in that: There are multiple alarm branches connected in parallel, and the alarm devices in different alarm branches are different.

4. The gateway device according to claim 2, characterized in that: The switching device is a switching diode, the anode of the switching diode is connected to the cathode terminal, and the cathode of the switching diode is connected to the anode terminal.

5. The gateway device according to claim 2, characterized in that: The alarm device is at least one of a light emitting diode, a buzzer and a vibrator.

6. The gateway device according to claim 2, characterized in that: The alarm branch also includes a protection resistor connected in series with the alarm device and the switch device.

7. The gateway device according to claim 1, characterized in that: The gateway load comprises a first protection device, a positive electrode of the first protection device is connected to the positive terminal, and a negative electrode of the first protection device is connected to the negative terminal; The first protection device is used to be turned on when the voltage of the positive terminal is greater than the voltage of the negative terminal, and to be turned off when the voltage of the positive terminal is less than the voltage of the negative terminal.

8. The gateway device according to claim 1, characterized in that: Also includes: An electrostatic protection branch is connected between the positive electrode terminal and the negative electrode terminal.

9. The gateway device according to claim 1, characterized in that: Also includes: A surge voltage protection branch is connected between the positive electrode terminal and the negative electrode terminal.

10. The gateway device according to any one of claims 1 to 9, characterized in that: The gateway device has a housing, and a gateway mainboard is arranged in the housing; The alarm circuit is arranged on the gateway mainboard, and the shell has a plurality of through holes for outputting the alarm prompt information.

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