Battery incubator

Abstract

The utility model belongs to lithium battery heat preservation technical field discloses a battery heat preservation box, including box body and heating device, the box body is by upper box body and lower box body is composed, the upper box body and lower box body are through magic paste sticky buckle and are composed box body, the heating device is by heating blanket, heater is composed, the heating blanket with heating ware is connected through electric wire, the heater includes temperature controller, electric wire, wire ear, is equipped with the fuse on the electric wire. The utility model battery heat preservation box includes box body and heating device, and the box body adopts three -layer structure, has waterproof, moisture -proof, fire -retardant, the efficacy of heat preservation, is equipped with independent heating blanket in the box body to the battery and is covered and is wrapped, controls the temperature in the box body through temperature controller, ensures that the temperature in the heat preservation box meets the technical requirement. The utility model battery heat preservation box can ensure that the temperature in the heat preservation box is not less than 0 DEG C for 24 hours under the environment of -40 DEG C, can good protection battery normal use under low temperature environment.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery pack technology, and in particular to a battery insulation box. Background Technology

[0002] Currently, as a new energy battery, lithium batteries are significantly affected by the working environment compared to traditional batteries. In particular, at low temperatures, the electrochemical activity of lithium batteries decreases, and their usability and charge / discharge performance degrade significantly. Low-temperature charging may lead to the deposition and accumulation of lithium ions, which seriously affects the service life of lithium batteries, causes irreversible damage, and may even lead to safety accidents.

[0003] Thermal insulation measures are particularly important for power batteries in low-temperature environments. On the one hand, they reduce the operating time of the battery heating system; on the other hand, they allow the battery to release its maximum discharge power, extending its lifespan and better protecting the battery cells. Current technology uses insulating cotton to wrap the battery, but this is incomplete and has poor insulation capabilities, failing to solve the problem of winter insulation for existing power batteries. Other current technologies use external heat sources to heat the battery, such as heating belts, heaters, or placing the battery in a heated environment, but this can lead to localized overheating. Furthermore, current technologies neglect monitoring the internal temperature of the charging unit enclosure, making it impossible for users to accurately monitor the internal temperature and potentially creating safety hazards.

[0004] Therefore, designing a dedicated thermal insulation enclosure for lithium batteries is crucial. This enclosure can keep lithium batteries warm in cold environments, control the internal temperature, improve the discharge capacity of the battery system, enhance the cyclic use of lithium batteries in extremely cold environments, further expand the application areas and efficiency of photovoltaic energy storage power stations, and provide strong support for national energy conservation and efficiency. Summary of the Invention

[0005] To address the technical challenges of using existing power batteries in low-temperature environments, this invention provides a battery insulation box that can heat lithium batteries. By controlling the temperature of the heating device through a heater, the temperature inside the box can be regulated, protecting the battery and ensuring its normal operation in low-temperature environments, thereby extending the battery's lifespan.

[0006] This utility model provides a battery insulation box, including a box body and a heating device. The box body is composed of an upper box body and a lower box body, which are connected by Velcro fasteners. The heating device consists of a heating blanket and a heater, which are connected to the heater by wires. The heater includes a temperature controller, a wire, and a lug, and the wire is equipped with a fuse.

[0007] Preferably, the sampling temperature range of the heating device is -40-45℃; the operating temperature range is 0-40℃; the heating start temperature is ≤5℃; the heating stop temperature is ≥15℃, but cannot exceed 40℃; the temperature control power is ≤5W; the rated operating voltage is 51.2VDC; the rated operating current is 10A; the voltage range is 36-60V; the insulation voltage is ≥600V AC / Min; and the insulation resistance is ≥50MΩ.

[0008] Preferably, the upper and lower housings comprise a three-layer structure: an inner layer of flame-retardant silicone cloth, a middle layer of rubber cotton, and an outer layer of flame-retardant silicone cloth, with the rubber cotton wrapped inside the flame-retardant silicone cloth.

[0009] Preferably, the upper housing is composed of a left side panel, a top panel, and a right side panel, with equal spacing between the left side panel, the top panel, and the right side panel.

[0010] Preferably, the lower housing is composed of a front panel, a bottom panel, and a rear panel, and the front panel, the bottom panel, and the rear panel are spaced at equal intervals.

[0011] Preferably, the lower box is provided with Velcro around its perimeter, which is used to attach the upper box and the lower box to form a box.

[0012] Preferably, the heating blanket consists of an outer aluminum foil layer, a middle non-woven fabric layer, and an inner insulation cotton layer.

[0013] Preferably, a plurality of wires are distributed on the middle nonwoven fabric, and the wires are electrically connected to the heater.

[0014] Preferably, the wires on the distributed middle layer of nonwoven fabric are provided with several temperature limiters.

[0015] Compared with related technologies, the present invention provides the following beneficial effects:

[0016] 1. This utility model battery insulation box includes a box body and a heating device. The box body adopts a three-layer structure and has the functions of waterproof, moisture-proof, flame-retardant and heat preservation. At the same time, an independent heating blanket is provided inside the box to cover and wrap the battery. The temperature inside the box is controlled by a temperature controller to ensure that the temperature inside the insulation box meets the technical requirements.

[0017] 2. The heating device of this utility model includes a heating blanket and a heater. The heating blanket is composed of an outer layer of aluminum foil, a middle layer of non-woven fabric, and an inner layer of insulation cotton, and has the functions of flame retardancy, heat insulation, and heat preservation. A temperature limiter is provided on the middle layer of non-woven fabric, and a fuse is provided on the heater as overload protection for the heating device, so as to keep the temperature inside the box constant and meet the usage requirements.

[0018] 3. The battery insulation box of this utility model can precisely control the temperature, has low power consumption, and has little impact on the battery; moreover, the box adopts a split design, which facilitates the packaging and use of batteries.

[0019] 4. This utility model battery insulation box can ensure that the temperature inside the insulation box does not drop below 0℃ for 24 hours in an environment of -40℃, which can effectively protect the battery for normal use in low-temperature environments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the battery insulation box described in the embodiment.

[0021] Figure 2 This is a schematic diagram of the unfolded structure of the battery insulation box described in the embodiment.

[0022] Figure 3 This is a schematic diagram of the battery insulation box structure described in the embodiment.

[0023] Figure 4 This is a schematic diagram of the heating device structure of the battery insulation box described in the embodiment.

[0024] Figure 5 This is a cross-sectional view of the heating blanket of the battery insulation box described in the embodiment.

[0025] Figure 6 This is a schematic diagram of the structure of the reinforcing block and reinforcing nail in the embodiment.

[0026] Numbered in the diagram: 1. Box body; 1-1. Rubber cotton; 1-2. Flame-retardant silicone cloth; 2. Heating device; 3. Upper box body; 3-1. Left side panel; 3-2. Top panel; 3-3. Right side panel; 4. Lower box body; 4-1. Front panel; 4-2. Bottom panel; 4-3. Rear panel; 5. Heating blanket; 5-1. Outer aluminum foil; 5-2. Middle non-woven fabric; 5-3. Inner insulation cotton; 6. Heater; 7. Wire; 8. Thermostat; 9. Wire lug; 10. Fuse; 11. Temperature limiter; 12. Velcro; 13. Battery. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. The following examples are only used to more clearly illustrate the technical solution of this utility model, and are not intended to limit this utility model.

[0028] Figure 1 This is a schematic diagram of the overall structure of the battery insulation box according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the unfolded structure of the battery insulation box according to an embodiment of the present invention, as shown below. Figure 1 , Figure 2 and Figure 4 As shown, the battery insulation box of the present invention includes:

[0029] The enclosure 1 and the heating device 2 are composed of an upper enclosure 3 and a lower enclosure 4, which are fastened together by Velcro 12. The heating device 2 consists of a heating blanket 5 and a heater 6, which are connected by a wire 7. The heater 6 includes a thermostat 8, a wire 7, and a wire lug 9. A fuse 10 is provided on the wire 7.

[0030] The upper casing 3 and the lower casing 4 are fastened together by Velcro 12 to form casing 1, facilitating battery storage; for example... Figure 3 As shown, the upper box 3 consists of a left side panel 3-1, a top panel 3-2, and a right side panel 3-3, with equal spacing between them. The lower box 4 consists of a front panel 4-1, a bottom panel 4-2, and a rear panel 4-3, with equal spacing between them. Velcro 12 is provided around the lower box 4 for attaching the upper box 3 and the lower box 4 to form the box 1. The upper box 3 and lower box 4 have a three-layer structure: an inner layer of flame-retardant silicone cloth 1-2, a middle layer of rubber cotton 1-1, and an outer layer of flame-retardant silicone cloth 1-2. The rubber cotton 1-1 wraps around the flame-retardant silicone cloth 1-2. Both the inner and outer surfaces of the box are made of flame-retardant silicone cloth, providing long-term effectiveness in terms of rainproofing, moisture resistance, and flame retardancy.

[0031] like Figures 4-6 As shown, the heating device 2 consists of a heating blanket 5 and a heater 6, which are connected by wires 7. The heater 6 includes a thermostat 8, wires 7, and lugs 9. A fuse 10 is installed on the wires 7. When the battery heating temperature exceeds the design temperature, the fuse will trip. The heating blanket 5 consists of an outer aluminum foil 5-1, a middle non-woven fabric 5-2, and an inner insulation cotton 5-3, providing flame retardancy, heat insulation, and heat preservation. Several wires 7 are distributed on the middle non-woven fabric 5-2. The wires 7 are electrically connected to the heater 6 and are heated by the heater to conduct heat to the heating blanket. Several temperature limiters 11 are installed on the wires 7 distributed on the middle non-woven fabric 5-2. The heater also contains a temperature sensor. When the temperature sensor detects that the temperature inside the box exceeds the set temperature, the temperature limiter will activate and stop heating the insulation box, maintaining it within the specified temperature range. When the heater malfunctions and cannot control the temperature, the temperature limiter can also cut off the heating to maintain the box temperature and protect the battery.

[0032] Working principle of this device: The battery protection box of this invention is mainly used for heat preservation of lithium batteries in photovoltaic energy storage power stations. In use, the lower box 4 is first laid on the ground, and the lithium batteries requiring heat preservation are placed on the lower box 4. Then, the lithium batteries are wrapped with a heating blanket 5. After wrapping, the upper box 3 and the lower box 4 are assembled into the heat preservation box 1 using Velcro 12. The lugs 9 on the heater 6 are connected to an external power supply. The temperature is set on the temperature controller 8 according to the heat preservation requirements, and then the power is turned on for heating and heat preservation. When the temperature inside the box reaches the set temperature, the heater 6 stops heating the heat preservation box. The box 1 and the heating blanket 5 provide heat preservation, keeping the lithium batteries inside the box warm and meeting the operating temperature requirements of the lithium batteries. If the temperature controller 8 malfunctions and cannot control the heating, the temperature limiter 11 will activate, controlling the temperature inside the box to not exceed the set temperature.

[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A battery insulation box, comprising a box body (1) and a heating device (2), characterized in that, The housing (1) is composed of an upper housing (3) and a lower housing (4), which are fastened together by Velcro (12); the heating device (2) is composed of a heating blanket (5) and a heater (6), which are connected by a wire (7); the heater (6) includes a thermostat (8), a wire (7), and a wire lug (9), and a fuse (10) is provided on the wire (7).

2. The battery insulation box according to claim 1, characterized in that, The upper box (3) and lower box (4) include a three-layer structure, with the inner layer being flame-retardant silicone cloth (1-2), the middle layer being rubber cotton (1-1), and the outer layer being flame-retardant silicone cloth (1-2). The rubber cotton (1-1) is wrapped inside the flame-retardant silicone cloth (1-2).

3. The battery insulation box according to claim 1, characterized in that, The upper box (3) is composed of a left side plate (3-1), a top plate (3-2), and a right side plate (3-3), with equal spacing between the left side plate (3-1), the top plate (3-2), and the right side plate (3-3).

4. The battery insulation box according to claim 1, characterized in that, The lower box (4) is composed of a front plate (4-1), a bottom plate (4-2), and a rear plate (4-3), with equal spacing between the front plate (4-1), the bottom plate (4-2), and the rear plate (4-3).

5. The battery insulation box according to claim 3, characterized in that, The lower box (4) is provided with Velcro (12) around its perimeter. The Velcro (12) is used to attach the upper box (3) and the lower box (4) to form the box (1).

6. The battery insulation box according to claim 1, characterized in that, The heating blanket (5) consists of an outer aluminum foil (5-1), a middle non-woven fabric (5-2), and an inner insulation cotton (5-3).

7. The battery insulation box according to claim 6, characterized in that, Several wires (7) are distributed on the middle layer nonwoven fabric (5-2), and the wires (7) are electrically connected to the heater (6).

8. The battery insulation box according to claim 6, characterized in that, Several temperature limiters (11) are provided on the wires (7) distributed on the middle layer of nonwoven fabric (5-2).

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