External hanging type fire water tank for battery charging and replacing cabinet in severe cold area
By installing heating devices and insulation layers in the external fire water tank of the charging and swapping cabinet, the problem of water tank freezing in extremely cold regions has been solved, ensuring the normal use and energy-saving effect of the fire water tank in extremely cold regions.
Patent Information
- Application Number
- CN202520307450.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-25
AI Technical Summary
The existing charging and swapping cabinets lack external fire water tanks with insulation and heating devices, making them unusable in extremely cold regions. This causes the water to freeze, failing to meet emergency firefighting needs.
An external fire water tank for use in frigid regions was designed, comprising an independent control chamber and a water storage chamber, equipped with a heating device and a temperature sensing device, and using a heat insulation layer and a heat insulation layer. The temperature sensing device monitors the water temperature and heats it to ensure that the water does not freeze, while the heat insulation layer reduces heat exchange and lowers energy consumption.
It enables normal use in frigid regions, ensuring that the water in the fire water tank does not freeze, thus improving the equipment's versatility and energy efficiency.
Smart Images

Figure CN223861204U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging and swapping cabinet technology, specifically to an external fire water tank for charging and swapping cabinets in extremely cold regions. Background Technology
[0002] Currently, electric bicycles are becoming increasingly popular. For frequent users, such as food delivery workers and couriers, there may be situations where the battery power of their electric bicycles is insufficient. If they need to charge their electric bicycles, there will be an awkward situation where the electric bicycles cannot be used, which will undoubtedly affect the user's work efficiency. Therefore, charging and swapping cabinets have emerged. When the electric bicycle runs out of power, users can easily replace the battery with a fully charged one from the charging and swapping cabinet, thus bringing great convenience to electric bicycle users.
[0003] Batteries are flammable and explosive, therefore, fire suppression systems are installed inside charging and swapping cabinets. Some cabinets also have external fire water tanks. In the event of a fire, water from the fire water tank is pumped into the cabinet and sprayed onto the fire through nozzles to extinguish the flames and prevent further fires. However, existing external fire water tanks in charging and swapping cabinets lack insulation and heating devices, making them unsuitable for use in extremely cold regions. In these areas, temperatures can reach as low as -30°C, at which point the water in the tank would freeze, rendering it unusable for emergency fire suppression. Therefore, the existing external fire water tanks for charging and swapping cabinets have limited applicability and versatility, and their structure needs improvement. Utility Model Content
[0004] To address some or all of the problems existing in the prior art, this utility model provides an external fire water tank for a charging and swapping cabinet in extremely cold regions. The tank includes a housing connected to the cabinet of the charging and swapping cabinet. The housing contains an independent control chamber and a water storage chamber. The control chamber contains a control board, a battery, a pump, and a return pump. The battery, pump, and return pump are electrically connected to the control board. The output end of the pump is connected to the charging and swapping cabinet, and the input end is connected to the water storage chamber. The output end of the return pump is connected to the water storage chamber, and the input end is connected to the charging and swapping cabinet. An insulation layer is provided on the side wall of the water storage chamber. A heating device and a temperature sensing device are located on the housing at corresponding positions to the water storage chamber. The heating device and temperature sensing device are electrically connected to the control board. The heating device heats the fire water in the water storage chamber, and the temperature sensing device detects the water temperature in the water storage chamber.
[0005] As a further improvement of this utility model, the heating device includes a first heating element, which is electrically connected to the control board and is fitted and connected to the housing.
[0006] As a further improvement of this utility model, a heat insulation layer is provided on the side of the first heating element away from the box body, and the heat insulation layer is in close contact with the cabinet body of the charging and swapping cabinet.
[0007] As a further improvement of this utility model, the heat insulation layer is made of heat insulation cotton, and the thickness of the heat insulation layer is not less than 10 mm.
[0008] As a further improvement of this utility model, the temperature sensing device includes a first sensor, which is electrically connected to the control board and extends into the water storage chamber.
[0009] As a further improvement of this utility model, the insulation layer is made of insulation cotton, and the thickness of the insulation layer is not less than 40 mm.
[0010] As a further improvement of this utility model, the control cavity is provided with a second heating element and a second sensor respectively connected to the control board. The second heating element is used to heat the control cavity, and the second sensor is used to detect the temperature inside the control cavity.
[0011] As a further improvement of this utility model, a water level detection switch is provided in the water storage chamber. The water level detection switch is electrically connected to the control board and is used to monitor the amount of water in the water storage chamber.
[0012] As a further improvement of this utility model, a water inlet is provided on the side wall of the water storage chamber, and a water inlet sealing cover is provided on the water inlet, and the water inlet sealing cover is detachably connected to the water inlet.
[0013] As a further improvement of this utility model, the housing is provided with an emergency start switch, which is electrically connected to the control board.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] This invention features a temperature-sensing device within the water storage chamber to monitor the water temperature in real time, and a heating device to promptly heat the water, thus preventing freezing. Furthermore, an insulation layer on the side wall of the water storage chamber reduces heat exchange between the chamber and the outside, thereby keeping the water warm, reducing the frequency of heating, and lowering energy consumption. This invention ensures the water in the storage chamber will not freeze, making it suitable for use in extremely cold regions and improving the equipment's versatility. Attached Figure Description
[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the external structure of an embodiment of this utility model;
[0018] Figure 2 This is a schematic diagram of the internal structure of an embodiment of this utility model;
[0019] Figure 3 This is a schematic diagram of the water storage chamber in an embodiment of this utility model. Detailed Implementation
[0020] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.
[0021] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.
[0022] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0023] like Figure 1-3As shown, an external fire water tank for a charging / swapping cabinet in extremely cold regions includes a tank body 1, which is fixedly connected to the cabinet of the charging / swapping cabinet. The tank body 1 contains an independent control chamber 100 and a water storage chamber 200. The control chamber 100 is used to install various control devices and electrical components, while the water storage chamber 200 is used to hold fire-fighting water. A control board 15, a battery 2, a water pump 3, and a return water pump 4 are fixedly installed inside the control chamber 100. The battery 2, water pump 3, and return water pump 4 are electrically connected to the control board 15. The battery 2 supplies power to the control board 15. The output end of the water pump 3 is connected to the charging / swapping cabinet, and the input end of the water pump 3 is connected to the water storage chamber 200. The water pump 3 is used to pump water from the water storage chamber 200 to the charging / swapping cabinet for fire extinguishing. The output end of the return water pump 4 is connected to the water storage chamber 200, and the input end of the return water pump 4 is connected to the charging and swapping cabinet. The return water pump 4 is used to re-extract the water after the charging and swapping cabinet has been used into the water storage chamber 200 so that the water can be recycled, which is beneficial to saving water resources.
[0024] A heating device and a temperature sensing device are installed on the housing 1 at positions corresponding to the water storage chamber 200. The heating device and temperature sensing device are electrically connected to the control board 15. The heating device heats the fire-fighting water in the water storage chamber 200, thereby preventing the water in the water storage chamber 200 from freezing. The temperature sensing device detects the water temperature in the water storage chamber 200. In actual implementation, when the temperature sensing device detects that the water temperature in the water storage chamber 200 reaches a preset threshold, it sends a feedback signal to the control board 15. The control board 15 then immediately controls the battery 2 to supply power to the heating device. Through the operation of the heating device, the water in the water storage chamber 200 is heated, preventing the water in the water storage chamber 200 from freezing and ensuring that the water in the water storage chamber 200 is always in a flowing state.
[0025] To reduce heat exchange between the fire-fighting water in the water storage chamber 200 and the outside environment, an insulation layer 5 is provided on the side wall of the water storage chamber 200. The insulation layer 5 reduces heat exchange between the fire-fighting water and the outside environment, thereby slowing down water temperature loss and achieving energy savings. In this embodiment, the insulation layer 5 is made of insulation cotton, and its thickness is 40 mm. In other embodiments, the insulation layer 5 can be made of other insulation materials, and its thickness can be greater than 40 mm.
[0026] This external fire water tank features a temperature sensor within the storage chamber 200 that monitors the water temperature in real time. A heating device promptly heats the water in the chamber, preventing it from freezing. Furthermore, an insulation layer 5 on the side wall of the storage chamber 200 provides insulation, reducing the need for frequent heating and lowering energy consumption. Therefore, this external fire water tank effectively prevents the water in the storage chamber 200 from freezing, making it suitable for use in extremely cold regions and enhancing the equipment's versatility.
[0027] In this embodiment, the heating device includes a first heating element 6, which is electrically connected to the control board 15. The first heating element 6 may have a structure with a built-in heating wire and an outer silicone coating. The first heating element 6 is attached to the side wall of the housing 1. In operation, the control board 15 controls the battery 2 to supply power to the first heating element 6, causing it to start working. The heat generated by the first heating element 6 is conducted to the housing 1, and then through the housing 1 to the fire-fighting water in the water storage chamber 200, thus achieving the purpose of heating the water. In other embodiments, the heating device may also be other types of heating structures, as long as it can heat the water in the water storage chamber 200; for example, a heating rod may be inserted into the water storage chamber 200 to heat the water.
[0028] To reduce heat conduction to the charging and swapping cabinet, a heat insulation layer 7 is provided on the side of the first heating element 6 away from the cabinet 1. The heat insulation layer 7 is in close contact with the cabinet body of the charging and swapping cabinet. The heat insulation layer 7 not only reduces heat conduction to the charging and swapping cabinet, but also reduces heat loss, thereby providing a certain degree of insulation for the water inside the cabinet 1.
[0029] In this embodiment, the heat insulation layer 7 is made of thermal insulation cotton, and the thickness of the heat insulation layer 7 is 10 mm. In other embodiments, the heat insulation layer 7 can also be made of other heat insulation materials, and its thickness can be greater than 10 mm.
[0030] The temperature sensing device includes a first sensor 8, which is electrically connected to the control board 15 and extends into the water storage chamber 200. In actual operation, the first sensor 8 collects the water temperature in the water storage chamber 200 in real time. When the water temperature reaches the threshold, it sends a feedback signal to the control board 15, which then controls the first heating element 6 to heat the water in the tank.
[0031] To prevent low temperatures from affecting the operation of the control device within the control cavity 100, in this embodiment, the control cavity 100 is equipped with a second heating element 9 and a second sensor 10, both connected to the control board 15. The second heating element 9 is used to heat the control cavity 100, and the second sensor 10 is used to detect the temperature within the control cavity 100. During actual operation, the second sensor 10 monitors the air temperature within the control cavity 100 in real time. When the air temperature within the control cavity 100 reaches a threshold, a feedback signal is sent to the control board 15, which then controls the second heating element 9 to operate. The second heating element 9 generates heat and dissipates it into the control cavity 100, thereby increasing the air temperature within the control cavity 100 and achieving the purpose of heating.
[0032] A water level detection switch 11 is installed inside the water storage chamber 200. The water level detection switch 11 is electrically connected to the control board 15. The water level detection switch 11 is used to monitor the water level in the water storage chamber 200. When the water level in the water storage chamber 200 is lower than that of the water level detection switch 11, the water level detection switch 11 will send a warning signal to the control board 15. The control board 15 will then send a feedback signal to the charging and swapping cabinet to remind the user to add water to the water storage chamber 200 in a timely manner. The water level detection switch 11 can be any existing electrical device capable of detecting water level, and this utility model does not impose any restrictions on it.
[0033] To facilitate adding water to the water storage chamber 200, a water inlet is provided on the side wall of the water storage chamber 200, and a water inlet sealing cap 12 is provided on the water inlet. The water inlet sealing cap 12 is detachably connected to the water inlet. Normally, the water inlet sealing cap 12 seals the water inlet, thereby preventing dust and other contaminants from entering the water storage chamber 200. When water needs to be added, the water inlet sealing cap 12 is opened from the water inlet, and then an external water source is connected to the water inlet to add water to the water storage chamber 200. After adding water, the water inlet sealing cap 12 is resealed.
[0034] Normally, this external fire water tank is controlled by the control center of the charging and swapping cabinet. When a fire breaks out in one of the cabinets, a signal is sent back to the control board 15, which then controls the water pump 3 to pump water from the storage chamber 200 into the charging and swapping cabinet for fire extinguishing. Simultaneously, the return water pump 4 is controlled to pump used water back into the storage chamber 200 for recycling. However, in actual operation, if the control center in the charging and swapping cabinet malfunctions, the external fire water tank may not be able to start. Therefore, in this embodiment, an emergency start switch 13 is installed on the tank body 1, and the emergency start switch 13 is electrically connected to the control board 15. When the user manually presses the emergency start switch 13, the emergency start switch 13 sends a start signal to the control board 15, which then immediately controls the water pump 3 to start operating.
[0035] An anti-accidental contact cover 14 is provided on the housing 1 at the position corresponding to the emergency start switch 13. The anti-accidental contact cover 14 can prevent accidental contact with the emergency start switch 13. In case of emergency, the user can break the anti-accidental contact cover 14 and then press the emergency start switch 13 to start the external fire water tank.
[0036] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.
Claims
1. An externally-hung fire-fighting water tank for a charging and battery swapping cabinet in a cold region, characterized in that: The application relates to a charging and replacing cabinet, which comprises a box body connected with a cabinet body of the charging and replacing cabinet, a control cavity and a water storage cavity which are independent of each other are arranged in the box body, a control board, a battery, a water pumping pump and a water returning pump are arranged in the control cavity, the battery, the water pumping pump and the water returning pump are electrically connected with the control board, an output end of the water pumping pump is connected with the charging and replacing cabinet, an input end of the water pumping pump is connected with the water storage cavity in communication, an output end of the water returning pump is connected with the water storage cavity in communication, and an input end of the water returning pump is connected with the charging and replacing cabinet. A heat preservation layer is arranged on a side wall of the water storage cavity, a heating device and a temperature sensing device are arranged on the box body at positions corresponding to the water storage cavity, the heating device and the temperature sensing device are electrically connected with the control board, the heating device is used for heating fire-fighting water in the water storage cavity, and the temperature sensing device is used for detecting the water temperature in the water storage cavity.
2. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to claim 1, characterized in that: The heating device comprises a first heating sheet which is electrically connected with the control board and is connected with the box body in a close manner.
3. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to claim 2, characterized in that: A heat insulation layer is arranged on a side of the first heating sheet away from the box body, and the heat insulation layer is connected with the cabinet body of the charging and replacing cabinet in a close manner.
4. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to claim 3, characterized in that: The heat insulation layer is made of heat preservation cotton and has a thickness not less than 10 mm.
5. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to claim 1, characterized in that: The temperature sensing device comprises a first sensor which is electrically connected with the control board and extends into the water storage cavity.
6. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to claim 1, characterized in that: The heat preservation layer is made of heat preservation cotton and has a thickness not less than 40 mm.
7. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to any one of claims 1-6, characterized in that: The control cavity is provided with a second heating sheet and a second sensor which are connected with the control board, the second heating sheet is used for heating the control cavity, and the second sensor is used for detecting the temperature in the control cavity.
8. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to any one of claims 1-6, characterized in that: The water storage cavity is provided with a water level detection switch which is electrically connected with the control board and is used for monitoring the water amount in the water storage cavity.
9. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to claim 8, characterized in that: A water adding opening is arranged on the side wall of the water storage cavity, a water adding sealing cover is arranged on the water adding opening, and the water adding sealing cover is detachably connected with the water adding opening.
10. The externally-hung fire-fighting water tank for the charging and battery swapping cabinet in severe cold areas according to any one of claims 1-6, characterized in that: An emergency starting switch is arranged on the box body and is electrically connected with the control board.