A power outage protection refrigerator system

Abstract

This utility model discloses a power outage-proof refrigerator system. The system includes a refrigerator and an adapter. The adapter includes a switching circuit; the switching circuit includes a first port, a second port, and a third port; the first port of the switching circuit is electrically connected to the refrigerator's power supply; the second port of the switching circuit is used to connect to the power grid; and the third port of the switching circuit is used to connect to an energy storage device. This system enables timely switching to the energy storage device for power supply when the power grid fails, preventing spoilage of items inside the refrigerator due to power outages. Furthermore, the refrigerator plug does not need to be unplugged when switching from the power grid to the energy storage device, making operation simpler and more convenient for the user.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to a power-off protection refrigerator system. Background Technology

[0002] Refrigerators, as a common household appliance, play an important role in food and medicine storage. In the event of a power outage, if the refrigerator cannot be powered in time, food and medicine will spoil, leading to food and medicine safety issues.

[0003] Some households may be equipped with energy storage devices. After a power outage, the refrigerator plug can be unplugged from the household outlet and plugged into the energy storage device, or a battery can be installed inside the refrigerator to prevent the refrigerator from decaying due to prolonged power outages.

[0004] However, due to the large size of refrigerators, when the plug is located between the refrigerator and the wall, the refrigerator needs to be moved to operate it, which is very cumbersome and causes great inconvenience to users. If a battery is installed inside the refrigerator, the refrigerator needs to be disassembled and repaired when the battery fails, which will also cause great inconvenience to users. Utility Model Content

[0005] This utility model provides a power outage-proof refrigerator system that allows the power grid to be switched to an energy storage device to power the refrigerator without the need for frequent plugging and unplugging when the power grid fails, making the operation simpler and more convenient for users.

[0006] This utility model embodiment provides a power outage-proof refrigerator system, including: a refrigerator and an adapter:

[0007] The adapter includes a switching circuit; the switching circuit includes a first port, a second port, and a third port;

[0008] The first port of the switch circuit is electrically connected to the power supply terminal of the refrigerator; the second port of the switch circuit is used to connect to the power grid; and the third port of the switch circuit is used to connect to the energy storage device.

[0009] Optionally, the switching circuit includes a single-pole double-throw switch;

[0010] The moving contact of the single-pole double-throw switch is electrically connected to the first port of the switch circuit; the first stationary contact of the single-pole double-throw switch is electrically connected to the second port of the switch circuit; and the second stationary contact of the single-pole double-throw switch is electrically connected to the third port of the switch circuit.

[0011] Optionally, the switching circuit includes a first switch and a second switch;

[0012] The first switch is connected between the first port and the second port of the switch circuit;

[0013] The second switch is connected between the first port and the third port of the switch circuit.

[0014] Optionally, the switching circuit further includes a third switch and a fourth switch;

[0015] The third switch is connected in series with the first switch, and the third switch is also connected between the first port and the second port of the switch circuit;

[0016] The fourth switch is connected in series with the second switch, and the fourth switch is also connected between the first port and the third port of the switch circuit;

[0017] Wherein, an interlocking device is provided between the first switch and the second switch so that the first switch and the second switch cannot be pressed or toggled at the same time; or, an interlocking circuit is provided between the first switch and the second switch so that the first switch and the second switch cannot be turned on at the same time.

[0018] The third switch and the fourth switch constitute a double-pole double-throw switch.

[0019] Optionally, the adapter may further include a first indicator light and a second indicator light;

[0020] The first indicator light is used to connect between the second port of the switching circuit and the power grid; the second indicator light is used to connect between the third port of the switching circuit and the energy storage device.

[0021] Optionally, the first port of the switching circuit can be plugged into and disconnected from the power supply terminal of the refrigerator;

[0022] The refrigerator is equipped with a refrigerator plug at its power supply end; the first port of the switch circuit is equipped with an adapter socket.

[0023] Optionally, the adapter further includes a first connecting cable and a second connecting cable;

[0024] The first end of the first connecting line is electrically connected to the second port of the switching circuit, and the second end of the first connecting line is used to connect to the power grid.

[0025] The first end of the second connecting line is electrically connected to the third port of the switching circuit, and the second end of the second connecting line is used to connect to the energy storage device.

[0026] Optionally, the first end of the first connecting line is pluggable to the second port of the switching circuit, and the second end of the first connecting line is pluggable to the socket connected to the power grid.

[0027] The first end of the second connecting line is pluggable to the third port of the switching circuit, and the second end of the second connecting line is pluggable to the energy storage device.

[0028] Optionally, the adapter may also include a control circuit, a data acquisition circuit, and a backup power supply.

[0029] The switching circuit further includes a control terminal; the control circuit includes a signal input terminal and a signal output terminal; the acquisition circuit includes a first acquisition terminal, a second acquisition terminal, and an acquisition output terminal; the backup power supply includes a first input terminal, a second input terminal, and a power output terminal.

[0030] The control terminal of the switching circuit is electrically connected to the signal output terminal of the control circuit; the signal input terminal of the control circuit is electrically connected to the acquisition output terminal of the acquisition circuit; the first acquisition terminal of the acquisition circuit is electrically connected to the second port of the switching circuit, and the second acquisition terminal of the acquisition circuit is electrically connected to the third port of the switching circuit.

[0031] The power supply terminals of the control circuit and the acquisition circuit are both electrically connected to the power output terminal of the backup power supply; the first input terminal of the backup power supply is electrically connected to the second port of the switching circuit, and the second input terminal of the backup power supply is electrically connected to the third port of the switching circuit.

[0032] Optionally, the signal output terminal of the control circuit is electrically connected to the control terminal of the switching circuit through a driving device.

[0033] This invention provides an adapter with a switching circuit that can be electrically connected to the refrigerator, the power grid, and the energy storage device. When switching the power grid to power the refrigerator or switching the energy storage device to power the refrigerator, there is no need to plug or unplug the refrigerator. This makes the operation simple and safe, and avoids safety accidents caused by frequently plugging and unplugging the refrigerator. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 1 ;

[0035] Figure 2 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 2 ;

[0036] Figure 3 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 3 ;

[0037] Figure 4 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 4 .

[0038] In the embodiments of this utility model, the reference numerals and corresponding feature names are as follows:

[0039] 01-Refrigerator, 02-Adapter, 03-Power grid, 04-Energy storage device, 10-Switch circuit, 11-First port of switch circuit, 12-Second port of switch circuit, 13-Third port of switch circuit, 14-Control terminal of switch circuit, 21-First input terminal of adapter, 22-Second input terminal of adapter, 23-Output terminal of adapter, 41-First connecting line, 42-Second connecting line, 50-Control circuit, 51-Signal input terminal of control circuit, 52-Signal output terminal of control circuit, 59-Power supply terminal of control circuit, 60-Acquisition circuit, 61-First acquisition terminal of acquisition circuit, 62-Second acquisition terminal of acquisition circuit, 63-Acquisition output terminal of acquisition circuit, 69-Power supply terminal of acquisition circuit, 70-Backup power supply, 71-First input terminal of backup power supply, 72-Second input terminal of backup power supply, 73-Power output terminal of backup power supply, 80-Driver. Detailed Implementation

[0040] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0041] The terminology used in the embodiments of this utility model is for the purpose of describing specific embodiments only and is not intended to limit the utility model. It should be noted that directional terms such as "upper," "lower," "left," and "right" described in the embodiments of this utility model are used to describe the angles shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. Furthermore, in the context, it should be understood that when referring to an element being formed "on" or "below" another element, it can be formed not only directly on or below the other element, but also indirectly on or below it through an intermediate element. The terms "first," "second," etc., are used for descriptive purposes only and do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] This utility model provides a power-off-protection refrigerator system, including a refrigerator and an adapter. The adapter includes a switching circuit. The switching circuit includes a first port, a second port, and a third port. The first port of the switching circuit is electrically connected to the power supply terminal of the refrigerator; the second port of the switching circuit is used to connect to the power grid; and the third port of the switching circuit is used to connect to an energy storage device.

[0044] By adopting the above technical solution, and by setting up an adapter, the switching circuit of which can be electrically connected to the refrigerator, the power grid, and the energy storage device respectively, when switching to the power grid to power the refrigerator or switching to the energy storage device to power the refrigerator, there is no need to plug or unplug the refrigerator. The operation is simple and safe, and can avoid safety accidents caused by frequently plugging and unplugging the refrigerator.

[0045] The above is the core idea of ​​this application. The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0046] Figure 1 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 1 ,like Figure 1 As shown, the power outage protection refrigerator system includes a refrigerator 01 and an adapter 02. The adapter 02 includes a switch circuit 10. The switch circuit 10 includes a first port 11, a second port 12 and a third port 13. The first port 11 of the switch circuit 10 is electrically connected to the power supply terminal VA of the refrigerator 01. The second port 12 of the switch circuit 10 is used to connect to the power grid 03. The third port 13 of the switch circuit 10 is used to connect to the energy storage device 04.

[0047] The adapter 02 is an interface converter capable of enabling compatible connection, conversion, or adaptation between different devices, interfaces, signals, or power supplies. In this embodiment, the adapter 02 enables power transmission. The switching circuit 10 is a circuit that controls the connection state of a circuit through a switching element. It utilizes the conduction and cutoff characteristics of the switching element to control the circuit to "open" and "close." In this embodiment, the switching circuit 10 can enable the first port 11 to conduct with the second port 12, or the first port 11 to conduct with the third port 13. The power grid 03 includes, but is not limited to, 220V mains power supply. The energy storage device 04 includes, but is not limited to, renewable energy storage power supply, emergency energy storage power supply, or mobile energy storage power supply; this embodiment does not impose any limitations on these.

[0048] For example, the first port 11 of the switching circuit 10 in the adapter 02 is connected to the power supply terminal VA of the refrigerator 01, and the second port 12 of the switching circuit 10 is connected to the power grid 03. When the power grid 03 is powered, the switching circuit 10 can conduct the first port 11 and the second port 12, that is, conduct the power transmission path between the power supply terminal VA of the refrigerator 01 and the power grid 03, so that the power grid 03 supplies power to the refrigerator 01. The third port 13 of the switching circuit 10 is connected to the energy storage device 04. When the power grid 03 is de-energized, the switching circuit 10 can conduct the first port 11 and the third port 13, that is, conduct the power transmission path between the power supply terminal VA of the refrigerator 01 and the energy storage device 04, so that the adapter 02 switches to the energy storage device 04 to supply power to the refrigerator 01, so as to avoid the refrigerator from being in a power-off state for a long time and causing spoilage.

[0049] The power outage prevention refrigerator system provided in this embodiment of the utility model has an adapter, and the switching circuit of the adapter can be electrically connected to the refrigerator, the power grid and the energy storage device respectively. When switching to the power grid to power the refrigerator or switching to the energy storage device to power the refrigerator, there is no need to plug or unplug the refrigerator. The operation is simple and safe, and it can avoid safety accidents caused by frequently plugging and unplugging the refrigerator.

[0050] Optional, continue to refer to Figure 1 The switching circuit 10 includes a single-pole double-throw switch (SPDT); the moving contact K1 of the SPDT is electrically connected to the first port 11 of the switching circuit 10; the first stationary contact K2 of the SPDT is electrically connected to the second port 12 of the switching circuit 10; and the second stationary contact K3 of the SPDT is electrically connected to the third port 13 of the switching circuit 10.

[0051] Specifically, the moving contact K1 of the single-pole double-throw (SPDT) switch is electrically connected to the first port 11 of the switching circuit 10, allowing the moving contact K1 of the SPDT switch to be electrically connected to the refrigerator 01 through the first port 11 of the switching circuit 10. Regardless of which stationary contact (K2 or K3) the moving contact of the SPDT switch is to, the moving contact can be electrically connected to the first port 11, meaning the refrigerator 01 can be electrically connected to any stationary contact (K2 or K3). When the moving contact of the SPDT switch is to the first stationary contact K2, the moving contact can simultaneously connect the first port 11 and the second port 12, making the power transmission path between the power supply terminal VA of the refrigerator 01 and the power grid 03 conductive; when the moving contact of the SPDT switch is to the second stationary contact K3, the moving contact can simultaneously connect the first port 11 and the third port 13, making the power transmission path between the power supply terminal VA of the refrigerator 01 and the energy storage device 04 conductive.

[0052] For example, when the power grid 03 is powered, the user can control the moving contact of the single-pole double-throw switch SPDT to close with the first stationary contact K2 and open with the second stationary contact K3. The first port 11 and the second port 12 of the switch circuit 10 are connected, and the power grid 03 supplies power to the refrigerator 01. When the power grid 03 is de-energized, the moving contact of the single-pole double-throw switch SPDT is opened with the first stationary contact K2 and closed with the second stationary contact K3. The first port 11 and the third port 13 of the switch circuit 10 are connected, and the energy storage device 04 takes over from the power grid 03 to continue supplying power to the refrigerator 01.

[0053] This embodiment of the invention uses a single-pole double-throw (SPDT) switch in the switching circuit. The moving contact of the SPDT is connected to the first port 11 of the switching circuit 10 via the moving contact end K1, the first stationary contact K2 is connected to the second port 12 of the switching circuit 10, and the second stationary contact K3 is connected to the third port 13 of the switching circuit 10. This avoids simultaneous conduction between the first port 11 and the second port 12, and between the first port 11 and the third port 13, during power supply. Since there is a phase difference between the AC output of the power grid 03 and the energy storage device 04, if both supply power to the refrigerator 01 simultaneously, it will cause damage to the refrigerator 01. The setting of the SPDT can solve the problem of the power grid 03 and the energy storage device 04 supplying power to the refrigerator 01 simultaneously, avoiding damage to the refrigerator 01 and achieving reasonable power supply to the refrigerator system.

[0054] Optional, Figure 2 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 2 ,like Figure 2As shown, the switching circuit 10 includes a first switch S1 and a second switch S2. The first switch S1 is connected between the first port 11 and the second port 12 of the switching circuit, and the second switch S2 is connected between the first port 11 and the third port 13 of the switching circuit.

[0055] The first switch S1 and the second switch S2 include, but are not limited to, controllable switches such as relays, metal-oxide-semiconductor field-effect transistors (MOSFETs), and insulated-gate bipolar transistors (IGBTs), as well as mechanical switches such as push-button switches, toggle switches, rotary switches, and push-pull switches. In an optional embodiment, both the first switch S1 and the second switch S2 are single-pole single-throw switches.

[0056] Specifically, the first switch S1 is connected between the first port 11 and the second port 12 of the switch circuit 10 to control the conduction and cutoff of the power transmission path between the refrigerator 01 and the power grid 03. The second switch S2 is connected between the first port 11 and the third port 13 of the switch circuit 10 to control the conduction and cutoff of the power transmission path between the refrigerator 01 and the energy storage device 04.

[0057] For example, taking both the first switch S1 and the second switch S2 as single-pole single-throw switches, when the power grid is energized, the user can control the first switch S1 to close and the second switch S2 to open, connecting the first port 11 and the second port 12 of the switch circuit 10. At this time, the refrigerator 01 and the power grid 03 are connected to the power supply. When the power grid 03 is de-energized, the user can control the first switch S1 to open and the second switch S2 to close, connecting the first port 11 and the third port 13 of the switch circuit 10. At this time, the energy storage device 04 supplies power to the refrigerator. When the refrigerator 01 is in maintenance or troubleshooting mode, the user can control both the first switch S1 and the second switch S2 to be in the open state, simultaneously disconnecting the power supply lines between the power grid 03 and the refrigerator and between the energy storage device 04 and the refrigerator, stopping the power supply to the refrigerator 01.

[0058] This utility model implements a first switch S1 between the first port 11 and the second port 12 of the switching circuit, and a second switch S2 between the first port 11 and the third port 13 of the switching circuit. This enables the simultaneous disconnection of the refrigerator 01 from the power grid 03 and the energy storage device 04. This avoids the safety hazards that may arise when the refrigerator 01 is only disconnected from either the power grid 03 or the energy storage device 04 during maintenance or troubleshooting, while the power supply line between the other and the refrigerator remains conductive. This allows for independent control of the connection status of the refrigerator 01 with the power grid 03 and the energy storage device 04. The first switch S1 and the second switch S2 can be flexibly controlled according to actual needs to disconnect the two connections individually or simultaneously.

[0059] Optional, Figure 3 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 3 ,like Figure 3 As shown, the switching circuit 10 also includes a third switch S3 and a fourth switch S4. The third switch S3 is connected in series with the first switch S1, and the third switch S3 is also connected between the first port 11 and the second port 12 of the switching circuit 10; the fourth switch S4 is connected in series with the second switch S2, and the fourth switch S4 is also connected between the first port 11 and the third port 13 of the switching circuit.

[0060] In an optional embodiment, when both the first switch S1 and the second switch S2 are mechanical switches, an interlocking device is provided between the first switch S1 and the second switch S2. Figure 3 (not shown in the image) so that the first switch S1 and the second switch S2 cannot be pressed or toggled at the same time; wherein, the interlocking device is a device that prevents the two switches from closing at the same time by means of mechanical means, such as by means of mechanical levers, baffles or other components, so that when one switch is closed, the other switch is stuck and cannot be closed.

[0061] In another optional embodiment, when both the first switch S1 and the second switch S2 are controllable switches, an interlock circuit is provided between the first switch S1 and the second switch S2. Figure 3 (not shown in the diagram) so that the first switch S1 and the second switch S2 cannot be turned on at the same time; wherein, the interlock circuit is a device that prevents the two switches from being turned on at the same time through electrical means, for example, the conduction circuits of the two switches restrict each other, and when one switch is turned on, the control circuit of the other switch can be connected to control the other switch to be turned off.

[0062] In another alternative implementation, the third switch S3 and the fourth switch S4 constitute a double-pole double-throw switch, which can be operated synchronously through the same connecting handle, simultaneously turning on or off.

[0063] For example, when at least one of the power grid 03 and the energy storage device 04 is energized, the third switch S3 and the fourth switch S4 can be kept continuously conducting. By controlling the first switch S1 or the switch S2 to conduct, the power grid 03 or the energy storage device 04 can be switched to supply power to the refrigerator 01. When the power grid is energized, the first switch S1 can be closed, and the first port 11 and the second port 12 can be connected, so the power grid 03 supplies power to the refrigerator 01. At the same time, the interlocking device or interlocking circuit turns off the second switch S2. When the power grid 03 is de-energized, the energy storage device 04 is switched to supply power to the refrigerator 01. When refrigerator 01 is powered, the second switch S2 can be closed, and the first port 11 and the third port 13 are connected. The energy storage device 04 starts to supply power to refrigerator 01. At the same time, the interlocking device or interlocking circuit turns off the first switch S1. When refrigerator 01 is in maintenance or troubleshooting state, the third switch S3 and the fourth switch S4 can be controlled to be in the open state at the same time. The power supply line between power grid 03 and refrigerator 01 and the power supply line between energy storage device 04 and refrigerator 01 are disconnected at the same time. Both power grid 03 and energy storage device 04 stop supplying power to refrigerator 01.

[0064] This embodiment of the invention achieves one-way power supply while the other is de-energized by setting an interlocking device or circuit between the first switch S1 and the second switch S2, thus preventing damage to the refrigerator caused by simultaneous conduction between the first port 11 and the second port 12, and between the first port 11 and the third port 13. Furthermore, by setting the third switch S3 of the double-pole double-throw switch connected in series with the first switch S1 between the first port 11 and the second port 12, and the fourth switch S4 of the double-pole double-throw switch connected in series with the second switch S2 between the first port 11 and the third port 13, it is possible to simultaneously disconnect the refrigerator 01 from the power grid 03 and the energy storage device 04. This avoids the safety hazards that may arise when only one of the power grid 03 or the energy storage device 04 is disconnected during maintenance or troubleshooting, while the power supply line between the other and the refrigerator remains conductive.

[0065] Optional, continue to refer to Figure 3 The adapter also includes a first indicator LED1 and a second indicator LED2. The first indicator LED1 is used to connect between the second port 12 of the switching circuit 10 and the power grid 03, and the second indicator LED2 is used to connect between the third port 13 of the switching circuit 10 and the energy storage device 04.

[0066] For example, adapter 02 includes a first input terminal 21, a second input terminal 22, and an output terminal 23. The first port 11 of the switching circuit 10 is electrically connected to the output terminal 23 of adapter 02. A first indicator LED1 is connected in series between the second port 12 and the first input terminal 21 of adapter 02, and the first input terminal 21 is electrically connected to the power grid 03. A second indicator LED2 is connected in series between the second port 12 and the second input terminal 22 of adapter 02, and the second input terminal 22 is electrically connected to the energy storage device 04. When the power grid 03 is powered, the first port 11 and the second port 12 of the switching circuit 10 are connected and turned on, and the first indicator LED1 lights up, indicating that the refrigerator 01 is currently powered and is supplied by the power grid 03. When the power grid 03 is de-energized, the first port 11 and the third port 13 of the switching circuit 10 are connected and turned on, and the second indicator LED2 lights up, indicating that the refrigerator 01 is currently powered and is supplied by the energy storage device 04.

[0067] This utility model embodiment, by setting a first indicator LED1 and a second indicator LED2, allows the user to know in a timely manner whether the refrigerator 01 is currently powered by the power supply based on the status of the two indicator lights. At the same time, based on the different on / off states of the indicator lights, the user can know the power supply terminal currently supplying power to the refrigerator 01. The user does not need to guess or perform complicated operations; they can quickly know the power supply status of the refrigerator 01 simply by observing the on / off state of the indicator lights.

[0068] Optionally, the first port 11 of the switch circuit 10 is pluggably connected to the power supply terminal VC of the refrigerator 01; the power supply terminal VC of the refrigerator 01 is provided with a refrigerator plug; the first port 11 of the switch circuit 10 is provided with an adapter socket (not shown in the figure).

[0069] The pluggable connection design eliminates the need for complex wiring between the adapter 02 and the refrigerator 01, allowing ordinary users to easily install or remove them. This facilitates repair and replacement in case of switch circuit failure. An adapter socket is provided at the first port 11 of the switch circuit 10. This adaptability design ensures the stability of the refrigerator 01 connection. The high compatibility between the refrigerator plug and the adapter socket of the switch circuit 10 reduces power outages and overheating caused by poor contact. Furthermore, the adapter socket is compatible with various refrigerator models on the market, offering broad applicability.

[0070] Optional, continue to refer to Figure 3 The adapter 02 of the power outage-proof refrigerator system also includes a first connecting wire 41 and a second connecting wire 42. The first end of the first connecting wire 41 is electrically connected to the second port 12 of the switch circuit 10, and the second end of the first connecting wire 41 is used to connect to the power grid 03. The first end of the second connecting wire 42 is electrically connected to the third port 13 of the switch circuit 10, and the second end of the second connecting wire 42 is used to connect to the energy storage device 04.

[0071] In this embodiment of the invention, the first connecting line 41 can be understood as a wire connecting the refrigerator 01 and the power grid 03, responsible for transmitting mains power. The second connecting line 42 can be understood as a wire connecting the refrigerator 01 and the energy storage device 04, responsible for transmitting stored power.

[0072] For example, when the power grid 03 is functioning normally, the first connecting line 41 connects to the power grid 03, allowing the power grid 03 to be connected to the refrigerator 01 via the first connecting line 41 of the adapter 02 and the switching circuit 10, thus supplying power to the refrigerator 01. When the power grid 03 is de-energized, there is no need to unplug the refrigerator 01; the second connecting line 42 can be connected to the energy storage device 04, allowing the energy storage device 04 to be connected to the refrigerator 01 via the second connecting line 42 of the adapter 02 and the switching circuit 10, thus supplying power to the refrigerator 01.

[0073] This utility model embodiment provides a first connecting line 41 and a second connecting line 42 that can be plugged into the power grid 03 and the energy storage device 04 respectively. This allows the adapter 02 to be connected to sockets (not shown in the figure) of the power grid 03 and the energy storage device 04 at different locations. It is not limited by fixed wiring or interface positions and can flexibly place the refrigerator according to actual needs, thus having good applicability.

[0074] Optionally, the first end of the first connecting line 41 is pluggable to the second port 12 of the switch circuit 10, and the second end of the first connecting line 41 is pluggable to the socket connected to the power grid 03. The first end of the second connecting line 42 is pluggable to the third port 13 of the switch circuit 10, and the second end of the second connecting line 3 is pluggable to the energy storage device 04.

[0075] This utility model embodiment, by designing a pluggable connection between the first connecting line 41 and the second connecting line 42, allows for the replacement of connecting lines of suitable length according to different usage environments, solving the adaptation problem caused by space limitations and achieving flexible adaptation to different usage scenarios.

[0076] Figure 4 This is a schematic diagram of the structure of a power outage-proof refrigerator system provided in an embodiment of this utility model. Figure 4 ,like Figure 4 As shown, adapter 02 includes a control circuit 50, a data acquisition circuit 60, and a backup power supply 70. Switching circuit 10 also includes a control terminal 14; control circuit 50 includes a signal input terminal 51 and a signal output terminal 52; data acquisition circuit 60 includes a first acquisition terminal 61, a second acquisition terminal 62, and an acquisition output terminal 63; backup power supply 70 includes a first input terminal 71, a second input terminal 72, and a power output terminal 73.

[0077] The control terminal 14 of the switching circuit 10 is electrically connected to the signal output terminal 52 of the control circuit 50; the signal input terminal 51 of the control circuit 50 is electrically connected to the acquisition output terminal 63 of the acquisition circuit 60; the first acquisition terminal 61 of the acquisition circuit 60 is electrically connected to the second port 12 of the switching circuit 10, and the second acquisition terminal 62 of the acquisition circuit 60 is electrically connected to the third port 13 of the switching circuit 10. The power supply terminals 59 of the control circuit 50 and 69 of the acquisition circuit 60 are both electrically connected to the power output terminal 73 of the backup power supply 70; the first input terminal 71 of the backup power supply 70 is electrically connected to the second port 12 of the switching circuit 10, and the second input terminal 72 of the backup power supply 70 is electrically connected to the third port 13 of the switching circuit 10.

[0078] In this embodiment of the invention, the control circuit 50 can be understood as a circuit used to control, regulate, or monitor the operating status of other electrical equipment or systems. It can enable the controlled object to perform corresponding actions according to preset rules or instructions through specific logical operations, signal processing, or instruction transmission. The acquisition circuit 60 can be understood as a circuit module used to acquire, sense, and preliminarily process external electrical signals. It can convert non-electrical signals or raw electrical signals into signals that can be recognized and processed by subsequent circuits. The backup power supply 70 can be understood as a power source capable of providing a stable and matched power supply to electronic equipment, while also capable of energy storage. For example, the backup power supply 70 includes an energy storage battery.

[0079] Specifically, the first acquisition terminal 61 is electrically connected to the second port 12 of the switching circuit 10, and the acquisition circuit 60 can obtain the power supply status of the power grid by acquiring the electrical signal from the second port 12; the second acquisition terminal 62 is electrically connected to the third port 13 of the switching circuit 10, and the acquisition circuit 60 can obtain the power supply status of the energy storage device 04 by acquiring the electrical signal from the third port 13; the acquisition output terminal 63 is connected to the signal input terminal 51 of the control circuit 50, and sends the acquired power supply status to the control circuit 50. The signal output terminal 52 of the control circuit 50 is electrically connected to the control terminal 14 of the switching circuit 10, and the control circuit 50 can output corresponding control signals to the control terminal of the switching circuit 10 according to the electrical signals received by the signal input terminal 51, so that the corresponding circuit is turned on. The first input terminal 71 of the backup power supply 70 is electrically connected to the second port 12 of the switching circuit 10, so that the backup power supply 70 can be powered by the power grid 03 when the power grid 03 is powered. The second input terminal 72 of the backup power supply 70 is electrically connected to the third port 13 of the switching circuit 10, so that the backup power supply 70 can be powered by the energy storage device 04 when the power grid 03 is de-energized. The backup power supply 70 can convert the electrical signals of the power grid 03 or the energy storage device 04 into electrical signals suitable for the control circuit 50 and the acquisition circuit 60, and provide them to the control circuit 50 and the acquisition circuit 60.

[0080] For example, when the power grid 03 is de-energized, the second port 12 of the switch circuit 10 has no electrical signal. When the energy storage device 04 is energized, the third port 13 of the switch circuit 10 has an electrical signal. The second acquisition terminal 62 of the acquisition circuit 60 acquires the electrical signal, while the first acquisition terminal 61 acquires the no-electrical signal. The acquisition circuit 60 can output a second acquisition signal to the control circuit 50. The control circuit 50 can output a second control signal to the switch circuit 10 based on the second acquisition signal, controlling the switch circuit 10 to connect the first port 11 and the third port 13, allowing the refrigerator 01 to be powered by the energy storage device 04. When the power grid 03 is energized, the second port 12 of the switch circuit 10 has an electrical signal, and the first acquisition terminal 61 of the acquisition circuit 60 acquires the electrical signal. The acquisition circuit 60 can... The first acquisition signal is output to the control circuit 50. The control circuit 50 can output a first control signal to the switch circuit 10 based on the first acquisition signal. The control switch circuit 10 connects the first port 11 and the second port 12, and the refrigerator 01 can be powered by the power grid 03. When the two acquisition terminals (61, 62) of the acquisition circuit 60 do not acquire electrical signals at the second port 12 and the third port 13, it indicates that the power grid 03 and the energy storage device 04 are both de-energized. The acquisition circuit 60 can output a third acquisition signal to the control circuit 50. The control circuit 50 can stop outputting control signals to the switch circuit 10, so that the switch circuit 10 remains in its current connection state. The backup power supply 70 can continue to supply power to the acquisition circuit 60 and the control circuit 50 to maintain the operation of the adapter 02.

[0081] In this embodiment of the invention, by incorporating a control circuit 50, a data acquisition circuit 60, and a backup power supply 70 within the adapter 02, the data acquisition circuit 60 can collect real-time data on the power grid 03 and the energy storage device 04 and transmit this data to the control circuit 50. The control circuit 50 can then control the connection status of the switching circuit 10, switching between the power grid 03 and the energy storage device 04 to supply power to the refrigerator 01. This provides real-time monitoring, enabling timely responses to power supply anomalies and improving power supply reliability. The backup power supply 70 can draw power from the power grid 03 or the energy storage device 04 to maintain the operation of the adapter 02 and store energy. In the event of a sudden power outage, it can promptly supply power to the adapter 02, maintaining its operation.

[0082] Optional, continue to refer to Figure 4 The signal output terminal 52 of the control circuit 50 is electrically connected to the control terminal 14 of the switch circuit 10 through the drive device 80.

[0083] In this embodiment of the invention, the driving device 80 can be understood as a device that drives a controlled object to move or perform actions by receiving external energy. In one optional embodiment, the switching circuit 10 includes a mechanical switch, and the driving device 80 may include a motor, a transmission device, or other structures, for controlling the on and off of the mechanical switch according to the control signal from the control circuit 50. In another optional embodiment, the switching circuit 10 includes a controllable switch, such as a MOSFET, an IGBT, or other semiconductor power device, and the driving device 80 may include a gate driver, for controlling the on and off of the semiconductor power device according to the control signal from the control circuit 50.

[0084] This embodiment of the utility model improves the control accuracy and stability of the switching circuit 10 by controlling the switching circuit 10 of the adapter 02 through the driving device 80, which is beneficial to ensuring the reliability of the power outage prevention refrigerator system.

[0085] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A power-off protection refrigerator system, characterized in that, include: Refrigerator and adapter: The adapter includes a switching circuit; the switching circuit includes a first port, a second port, and a third port; The first port of the switching circuit is electrically connected to the power supply terminal of the refrigerator; the second port of the switching circuit is used to connect to the power grid; and the third port of the switching circuit is used to connect to the energy storage device.

2. The anti-power-out refrigerator system according to claim 1, characterized in that, The switching circuit includes a single-pole double-throw switch; The moving contact of the single-pole double-throw switch is electrically connected to the first port of the switch circuit; the first stationary contact of the single-pole double-throw switch is electrically connected to the second port of the switch circuit; and the second stationary contact of the single-pole double-throw switch is electrically connected to the third port of the switch circuit.

3. The anti-power-out refrigerator system according to claim 1, characterized in that, The switching circuit includes a first switch and a second switch; The first switch is connected between the first port and the second port of the switch circuit; The second switch is connected between the first port and the third port of the switch circuit.

4. The anti-power-out refrigerator system according to claim 3, characterized in that, The switching circuit also includes a third switch and a fourth switch; The third switch is connected in series with the first switch, and the third switch is also connected between the first port and the second port of the switch circuit; The fourth switch is connected in series with the second switch, and the fourth switch is also connected between the first port and the third port of the switch circuit; Wherein, an interlocking device is provided between the first switch and the second switch so that the first switch and the second switch cannot be pressed or toggled at the same time; or, an interlocking circuit is provided between the first switch and the second switch so that the first switch and the second switch cannot be turned on at the same time. The third switch and the fourth switch constitute a double-pole double-throw switch.

5. The anti-power-out refrigerator system according to claim 1, characterized in that, The adapter also includes a first indicator light and a second indicator light; The first indicator light is used to connect between the second port of the switching circuit and the power grid; the second indicator light is used to connect between the third port of the switching circuit and the energy storage device.

6. The anti-power-out refrigerator system according to claim 1, characterized in that, The first port of the switching circuit is pluggable to the power supply terminal of the refrigerator. The refrigerator is equipped with a refrigerator plug at its power supply end; the first port of the switch circuit is equipped with an adapter socket.

7. The anti-power-out refrigerator system according to claim 1, characterized in that, The adapter also includes a first connecting cable and a second connecting cable; The first end of the first connecting line is electrically connected to the second port of the switching circuit, and the second end of the first connecting line is used to connect to the power grid. The first end of the second connecting line is electrically connected to the third port of the switching circuit, and the second end of the second connecting line is used to connect to the energy storage device.

8. The anti-power-out refrigerator system according to claim 7, characterized in that, The first end of the first connecting line is pluggably connected to the second port of the switch circuit, and the second end of the first connecting line is pluggably connected to the socket connected to the power grid. The first end of the second connecting line is pluggable to the third port of the switching circuit, and the second end of the second connecting line is pluggable to the energy storage device.

9. The anti-power-out refrigerator system according to claim 1, characterized in that, The adapter also includes control circuitry, data acquisition circuitry, and a backup power supply. The switching circuit further includes a control terminal; the control circuit includes a signal input terminal and a signal output terminal; the acquisition circuit includes a first acquisition terminal, a second acquisition terminal, and an acquisition output terminal; the backup power supply includes a first input terminal, a second input terminal, and a power output terminal. The control terminal of the switching circuit is electrically connected to the signal output terminal of the control circuit; the signal input terminal of the control circuit is electrically connected to the acquisition output terminal of the acquisition circuit; the first acquisition terminal of the acquisition circuit is electrically connected to the second port of the switching circuit, and the second acquisition terminal of the acquisition circuit is electrically connected to the third port of the switching circuit. The power supply terminals of the control circuit and the acquisition circuit are both electrically connected to the power output terminal of the backup power supply; the first input terminal of the backup power supply is electrically connected to the second port of the switching circuit, and the second input terminal of the backup power supply is electrically connected to the third port of the switching circuit.

10. The anti-power-out refrigerator system according to claim 9, characterized in that, The signal output terminal of the control circuit is electrically connected to the control terminal of the switching circuit through a driving device.

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