A backup power supply

Abstract

This utility model provides a backup power supply, belonging to the field of power supply technology. The backup power supply includes a housing assembly, a battery assembly, a charging assembly, and a switching assembly. The housing assembly includes a shell and a control box, with the control box detachably disposed within the shell. The battery assembly is disposed within the shell and includes individual battery cells and a circuit protection board. The individual battery cells are electrically connected to a fire alarm. When the battery cell's charge is low, the circuit protection board keeps the battery cell in a charging state; when the battery cell's charge is high, the circuit protection board disconnects the charging process. The charging assembly is disposed within the control box and can charge the individual battery cells. The charging assembly includes a solar charging component and a direct charging component. The switching assembly includes a first switch and a second switch. The first switch is electrically connected between the direct charging component and the battery assembly, and the second switch is electrically connected between the solar charging component and the battery assembly. The backup power supply of this utility model has high reliability and adaptability.

Description

Technical Field

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

[0002] Civil defense sirens are an important component of civil air defense construction. In peacetime, they are used to disseminate information about disaster relief and emergencies; in wartime, they are used to issue air defense warnings. They are a fundamental communication means for governments at all levels to implement civil air defense command and organize personnel evacuations. Currently, most air raid sirens are powered by municipal power. When the power grid is damaged, the sirens become ineffective, making it difficult to ensure timely alarm dissemination. They also suffer from poor power supply reliability and the inability to provide secondary warnings. Backup power supplies for civil defense sirens, serving as emergency power sources, are essential for ensuring secondary early warning.

[0003] Among related technologies, the backup power supply used for civil defense alarms has low reliability and insufficient adaptability. Utility Model Content

[0004] This utility model provides a backup power supply, the purpose of which is to improve the reliability and adaptability of the backup power supply.

[0005] To achieve the above objectives, this utility model provides a backup power supply configured to be electrically connected to a civil defense siren. When the civil defense siren is powered off, the backup power supply can supply power to the civil defense siren. The backup power supply includes:

[0006] A housing assembly, including a housing and a control box, wherein the control box is detachably disposed within the housing;

[0007] A battery assembly is disposed within the housing. The battery assembly includes multiple battery cells connected in series and a circuit protection board. The battery cells are electrically connected to the civil defense alarm. When the charge of a battery cell is lower than the minimum value of a preset range, the circuit protection board enables the battery cell to be in a charging state. When the charge of a battery cell is higher than the maximum value of the preset range, the circuit protection board enables the battery cell to disconnect from charging, thereby protecting the battery cell and enabling the civil defense alarm to operate for a preset time.

[0008] A charging component is disposed within the control box. The charging component is electrically connected to the battery assembly to charge the individual battery cells. The charging component includes a solar charging element and a direct charging element. The solar charging element is configured to charge the individual battery cells using solar energy, and the direct charging element is configured to directly charge the individual battery cells.

[0009] A switching assembly includes a first switch and a second switch, wherein the first switch is electrically connected between the direct charging component and the battery assembly, and the second switch is electrically connected between the solar charging component and the battery assembly.

[0010] In one embodiment, the backup power supply includes a display component disposed on the wall of the control box. The display component includes a first display screen and a second display screen. The first display screen is electrically connected to the battery assembly to display the status of the individual battery cells, and the second display screen is electrically connected to the solar charging device to display the charging status of the solar charging device.

[0011] In one embodiment, the backup power supply includes an output conversion module configured to convert a first voltage output by the battery cell into a second voltage, wherein the first voltage is configured to drive the civil defense alarm, and the second voltage is configured to drive the monitoring components of the backup power supply.

[0012] In one embodiment, the battery assembly is disposed below the control box.

[0013] In one embodiment, the switch assembly is disposed on the wall of the control box.

[0014] In one embodiment, the backup power supply further includes a photovoltaic panel disposed outside the housing assembly, and the solar charging device is a solar charger electrically connected to the photovoltaic panel so that the solar charger can use solar energy to charge the individual battery cells.

[0015] The above-mentioned solution of this utility model has the following beneficial effects:

[0016] In this embodiment, the battery module can be charged not only by a direct charging device but also by a solar charging device. Even with a prolonged power outage, the battery module can still obtain power through the solar charging device, increasing the likelihood that the battery cells' charge levels will remain within a preset range. This, in turn, improves the reliability and adaptability of the backup power supply, enhancing the likelihood that the civil defense alarm will function normally. Furthermore, the backup power supply is equipped with a first switch and a second switch, allowing operators to select a suitable charging mode for the battery module based on the environment. This conserves energy while ensuring the battery cells' charge levels remain within a preset range.

[0017] Other beneficial effects of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the backup power supply in one embodiment of the present invention, showing the control box connected inside the outer casing;

[0019] Figure 2 This is a schematic diagram of the backup power supply in one embodiment of the present invention. The cover plate is not shown in the figure, and the control box is shown to be removed from the housing.

[0020] [Explanation of Labels in the Attached Image]

[0021] 1. Shell assembly; 11. Shell; 12. Control box; 13. Cover plate; 2. Battery assembly; 21. Battery cell; 22. Circuit protection board; 3. Charging assembly; 31. Solar charging component; 32. Direct charging component; 4. Switch assembly; 41. First switch; 42. Second switch; 5. Display assembly; 51. First display screen; 52. Second display screen; 6. Output conversion module. Detailed Implementation

[0022] To make the technical problems, solutions, and advantages of this utility model clearer, a detailed description will be provided below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a locking connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] This application provides a backup power supply configured to be electrically connected to a civil defense siren. When a disaster occurs, the siren can sound an alarm to alert the public to react quickly and protect their lives and property. When the siren is powered by mains electricity and the backup power supply is not in operation, the siren can remain in standby mode to ensure timely alarm activation. When the siren loses power, the backup power supply can promptly supply power to the siren, allowing it to continue functioning in critical moments. For example, the backup power supply can enable the siren to sound continuously for more than thirty minutes. For details, please refer to [link to specific documentation]. Figure 1 and Figure 2 The backup power supply includes a housing assembly 1, a battery assembly 2, a charging assembly 3, and a switch assembly 4. The housing assembly 1 includes a housing 11 and a control box 12. The housing 11 can be a sheet metal housing to improve its robustness and dust and moisture resistance. The control box 12 is detachably disposed within the housing 11, for example, it can be installed or removed from the housing 11 by a pull-in method to facilitate the maintenance of the various components within the control box 12.

[0026] For example, the housing 11 can be a housing with an opening on one side to facilitate the installation and removal of the control box 12. Since the backup power supply requires dust and moisture protection, the housing assembly 1 can include a cover 13 that covers the opening in the housing 11. The cover 13 can be printed with the backup power supply's identification and warning information to allow operators to quickly locate the backup power supply and to warn unauthorized personnel not to approach or operate it.

[0027] The battery assembly 2 is housed within the casing 11 and includes multiple battery cells 21 connected in series and a circuit protection board 22. For example, the battery cells 21 can be lead-acid or lithium batteries, and there can be four battery cells 21. The voltage of a single battery cell 21 can be 12V, allowing the four battery cells 21 connected in series to output a voltage of 48V. The battery cells 21 are electrically connected to the fire alarm so that they can output 48V to power the fire alarm. When the charge of a battery cell 21 is lower than the minimum value of a preset range, the circuit protection board 22 enables the battery cell 21 to be in a charging state. When the charge of a battery cell 21 is higher than the maximum value of a preset range, the circuit protection board 22 enables the battery cell 21 to disconnect from charging. The circuit protection board 22 is configured to limit the charge of the battery cell 21 within a preset range to protect the battery cell 21 and allow the fire alarm to operate for a preset time. For example, the circuit protection board 22 can limit the charge of the battery cell 21 within a preset range. When the charge of the battery cell 21 is lower than the minimum value of the preset range, the circuit protection board 22 can keep the battery cell 21 in a charging state. When the charge of the battery cell 21 is higher than the maximum value of the preset range, the circuit protection board 22 can stop the charging of the battery cell 21, thus preventing overcharging and over-discharging of the battery cell 21 and improving its service life. The circuit protection board 22 can also have current and voltage parameter acquisition functions and equalization charging functions to monitor the status of the battery cell 21.

[0028] The charging component 3 is located within the control box 12 and is electrically connected to the battery assembly 2 to charge the individual battery cells 21. Aside from the power consumption required to power the security alarm, the battery assembly 2's charge decreases over time. Therefore, the charging component 3 is needed to charge the battery assembly 2 to maintain its charge level within a preset range. The charging component 3 includes a solar charging element 31 and a direct charging element 32. The solar charging element 31 is configured to charge the individual battery cells 21 using solar energy. For example, the direct charging element 32 is configured to directly charge the individual battery cells 21. For instance, the direct charging element 32 can directly convert 220V AC mains power to 48V to charge the individual battery cells 21.

[0029] The switching assembly 4 includes a first switch 41 and a second switch 42. The first switch 41 is electrically connected between the direct charging component 32 and the battery assembly 2 to control the on or off function of the direct charging component 32 in charging the battery assembly 2. The second switch 42 is electrically connected between the solar charging component 31 and the individual battery cell 21 to control the on or off function of the solar charging component 31 in charging the battery assembly 2.

[0030] For example, the operator can select whether the first switch 41 and the second switch 42 are turned on or off depending on the environment where the civil defense alarm and the backup power supply are located. For instance, if the backup power supply is located in an area with sufficient sunlight, the first switch 41 can be turned off and the second switch 42 can be turned on, meaning that the battery assembly 2 can only be charged through the solar charging unit 31 to save energy. If the backup power supply is located in an area with insufficient sunlight, the first switch 41 and the second switch 42 can be turned on simultaneously, allowing the battery assembly 2 to be charged not only through mains power but also through the solar charging unit 31, which helps to ensure that the charge of the individual battery cells 21 is within a preset range.

[0031] Exemplarily, the backup power supply may also include a control component configured to control the logic for charging the battery assembly 2. For example, the first switch 41 and the second switch 42 may be turned on simultaneously so that both the solar charging component 31 and the direct charging component 32 can charge the battery assembly 2. The control component can control the solar charging component 31 and the direct charging component 32 to charge the battery assembly 2 simultaneously, or it can control the solar charging component 31 to stop charging the battery assembly 2 while the direct charging component 32 is charging the battery assembly 2, and it can also control the direct charging component 32 to stop charging the battery assembly 2 while the solar charging component 31 is charging the battery assembly 2.

[0032] In this embodiment, the battery assembly 2 can be charged not only by the direct charging component 32 but also by the solar charging component 31. Even with a prolonged power outage, the battery assembly 2 can still obtain power through the solar charging component 31, increasing the likelihood that the charge level of the individual battery cells 21 remains within a preset range. This, in turn, improves the reliability and adaptability of the backup power supply, enhancing the likelihood that the civil defense alarm will function normally. Furthermore, the backup power supply is equipped with a first switch 41 and a second switch 42, allowing operators to select a suitable charging mode for the battery assembly 2 by opening or closing the first and second switches 41 according to the environment of the backup power supply. This conserves energy consumed by the backup power supply while ensuring that the charge level of the individual battery cells 21 remains within a preset range.

[0033] In one embodiment, please refer to Figure 1 and Figure 2The backup power supply includes a display component 5, which is mounted on the wall of the control box 12 to allow operators to view relevant information displayed on the display component 5. The display component 5 includes a first display screen 51 and a second display screen 52. The first display screen 51 is electrically connected to the battery assembly 2 to display the status of the individual battery cells 21. For example, the first display screen 51 can display the real-time charge and health status of the individual battery cells 21, allowing operators to decide whether to replace the individual battery cells 21 based on their status, thus ensuring the backup power supply operates normally and reliably. The second display screen 52 is electrically connected to the solar charging component 31 to display the charging status of the solar charging component 31.

[0034] For example, the first display screen 51 may also have buttons, which operators can use to query and set relevant parameters of the battery assembly 2.

[0035] In one embodiment, please refer to Figure 2 The backup power supply includes an output conversion module 6, which is configured to convert a first voltage output from the battery cell 21 into a second voltage. The first voltage is configured to drive the human alarm, and the second voltage is configured to drive the monitoring components of the backup power supply, thereby enhancing the functionality of the backup power supply. For example, the first voltage can be 48V, and the second voltage converted by the output conversion module 6 can be 13.8V. The 13.8V second voltage can drive the monitoring components, which can be intelligent auxiliary monitoring devices to monitor the operating status of the backup power supply or the surrounding environment.

[0036] In one embodiment, please refer to Figure 1 and Figure 2 The battery assembly 2 is located below the control box 12. The density of the battery assembly 2 is relatively high compared to the density of the control box 12 and its internal components. Placing the battery assembly 2 at the bottom inside the housing 11 facilitates its installation and lowers the center of gravity of the backup power supply, making it more stable and improving its reliability.

[0037] In one embodiment, please refer to Figure 1 and Figure 2 The switch assembly 4 is mounted on the wall of the control box 12. For example, the switch assembly 4 can be a manual switch, which is mounted on the wall of the control box 12 to facilitate the operator to turn the switch assembly 4 on or off.

[0038] In one embodiment, please refer to Figure 2The backup power supply also includes a photovoltaic panel (not shown), which is disposed on the outside of the housing assembly 1. The solar charging component 31 is a solar charger, which is electrically connected to the photovoltaic panel so that the solar charger can use solar energy to charge the battery cell 21. In the event of a mains power outage and prolonged absence of restoration, the battery cell 21 of this application can also be charged, which helps to improve the reliability of the backup power supply.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A backup power supply, characterized by Configured to be electrically connected to a civil defense siren, the backup power supply is capable of supplying power to the civil defense siren when the siren is powered off, the backup power supply comprising: A housing assembly, including a housing and a control box, wherein the control box is detachably disposed within the housing; A battery assembly is disposed within the housing. The battery assembly includes multiple battery cells connected in series and a circuit protection board. The battery cells are electrically connected to the civil defense alarm. When the charge of a battery cell is lower than the minimum value of a preset range, the circuit protection board enables the battery cell to be in a charging state. When the charge of a battery cell is higher than the maximum value of the preset range, the circuit protection board enables the battery cell to disconnect from charging, thereby protecting the battery cell and enabling the civil defense alarm to operate for a preset time. A charging component is disposed within the control box. The charging component is electrically connected to the battery assembly to charge the individual battery cells. The charging component includes a solar charging element and a direct charging element. The solar charging element is configured to charge the individual battery cells using solar energy, and the direct charging element is configured to directly charge the individual battery cells. A switching assembly includes a first switch and a second switch, wherein the first switch is electrically connected between the direct charging component and the battery assembly, and the second switch is electrically connected between the solar charging component and the battery assembly.

2. The backup power supply of claim 1, wherein, The backup power supply includes a display component disposed on the wall of the control box. The display component includes a first display screen and a second display screen. The first display screen is electrically connected to the battery assembly to display the status of the individual battery cells, and the second display screen is electrically connected to the solar charging device to display the charging status of the solar charging device.

3. The backup power supply of claim 1, wherein, The backup power supply includes an output conversion module configured to convert a first voltage output by the battery cell into a second voltage. The first voltage is configured to drive the civil defense alarm, and the second voltage is configured to drive the monitoring components of the backup power supply.

4. The backup power supply of claim 1, wherein, The battery assembly is located below the control box.

5. The backup power supply of claim 1, wherein, The switch assembly is disposed on the wall of the control box.

6. The backup power supply of claim 1, wherein, The backup power supply also includes a photovoltaic panel, which is disposed outside the housing assembly. The solar charging component is a solar charger, which is electrically connected to the photovoltaic panel so that the solar charger can use solar energy to charge the individual battery cells.

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