Low-temperature insulation sleeve for drone batteries

Abstract

This application discloses a low-temperature insulation sleeve for drone batteries, relating to the field of battery insulation technology. Its key technical features include: a flexible protective sleeve made of double-layered fabric; the outer fabric is the outer protective layer, and the inner fabric is the inner insulation layer; the inner insulation layer contains an independent pocket for installing a self-heating module; the upper end of the flexible protective sleeve has a battery placement opening communicating with its internal space, and an adjustment component is provided on the battery placement opening at the upper end of the flexible protective sleeve to adjust the tightness of the opening. This low-temperature insulation sleeve for drone batteries is not only convenient to carry but also provides excellent encapsulation and protection for the drone battery, enabling uniform heating and insulation within the battery.

Description

Technical Field

[0001] This application relates to the field of battery insulation technology, and in particular to a low-temperature insulation sleeve for drone batteries. Background Technology

[0002] In low winter temperatures, the rate of internal chemical reactions in lithium batteries decreases significantly, and the resistance to ion migration increases, leading to a reduction in usable capacity and a decrease in drone battery life. Low temperatures also limit battery discharge capacity, preventing the motors from obtaining sufficient voltage to maintain thrust. If the battery temperature drops below -10°C, it may even prevent normal takeoff. Furthermore, if the battery is forcibly installed in the drone and the drone is started, the battery voltage may drop sharply due to the low temperature, causing the drone's flight control system to misjudge the battery level, forcing the drone to make an emergency landing or crash.

[0003] Therefore, before flying drones in winter, it is often necessary to insulate the lithium batteries. This involves placing the batteries in the heating area of ​​a heater or similar device for at least one hour to ensure that the battery temperature reaches above 20°C during use. This helps reduce the internal resistance of the drone battery and restore its discharge capacity. However, when using drones outdoors, such as in mines, it is inconvenient to carry external heating devices like heaters. Utility Model Content

[0004] This application provides a low-temperature insulation sleeve for drone batteries, which can conveniently insulate the batteries of drones when using them outdoors in winter.

[0005] The above-mentioned objective of this application is achieved through the following technical solution:

[0006] A low-temperature insulation sleeve for a drone battery includes a flexible protective sleeve, which is made of two layers of fabric sewn together. The outer fabric is the outer protective layer, and the inner fabric is the inner insulation layer.

[0007] The inner insulation layer is provided with an independent insert for installing the self-heating module;

[0008] The upper end of the flexible protective sleeve is provided with a battery placement port that communicates with its internal space. The battery placement port at the upper end of the flexible protective sleeve is provided with an adjustment component, which can be used to adjust the tightness of the battery placement port at the upper end of the flexible protective sleeve.

[0009] Furthermore, the outer protective layer is specifically made of windproof nylon.

[0010] Furthermore, the specific material of the inner insulation layer is wool felt.

[0011] Furthermore, the number of the independent inserts is two, and the two independent inserts are symmetrically arranged inside the inner lining insulation layer.

[0012] Furthermore, the independent pocket is an elastic mesh pocket, and the other three side seams of the elastic mesh pocket, except for the top side seam, are all sewn onto the inner lining insulation layer by thread.

[0013] Furthermore, pearl cotton covered with an aluminum film is fixed in the area of ​​the inner lining insulation layer directly opposite the independent insert pocket.

[0014] Furthermore, the adjusting member includes a threading channel sewn onto the upper side of the battery placement opening, with a notch on one side of the threading channel, and an elastic band threaded through the threading channel, with both ends of the elastic band extending from the notch of the threading channel to its outer side.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] The flexible protective sleeve of this application consists of a two-layer structure. The outer protective layer primarily resists the intrusion of wind, rain, and other external environmental factors into the insulation sleeve's interior. The inner insulating layer, located on the inner side, mainly prevents heat loss from the inside of the insulation sleeve during use. An independent pocket on the inner insulating layer can be used to equip a self-heating module with a heating function. When the user needs to use the drone outdoors in winter, the drone battery can be inserted through the battery placement opening of the flexible protective sleeve. The opening can be tightened using the adjusting mechanism. The heat generated by the self-heating module continuously acts on the drone battery inside the flexible protective sleeve, thus providing a heating and insulation effect. This ensures that the drone battery does not become unusable due to excessively low temperature during use. The insulation sleeve of this application uses a self-heating module, requiring no external wiring during use. It is not only convenient to carry but also provides excellent protection and containment for the drone battery, enabling uniform heating and insulation within the battery. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this application;

[0019] Figure 2 This is a top view of this application;

[0020] Figure 3 This is a cross-sectional view of this application.

[0021] Reference numerals: 1. Flexible protective sleeve; 101. Outer protective layer; 102. Inner insulation layer; 2. Independent pocket; 3. Battery placement port; 4. Adjustment piece; 41. Threading channel; 42. Notch; 43. Elastic band; 5. Pearl cotton covered with aluminum foil. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of this application.

[0023] like Figures 1-3 As shown, this application discloses a low-temperature insulation sleeve for a drone battery, which includes a flexible protective sleeve 1. The flexible protective sleeve 1 is made of two layers of fabric sewn together. The outer fabric is the outer protective layer 101, and the inner fabric is the inner insulation layer 102.

[0024] The inner insulation layer 102 is provided with an independent insert 2 for installing the self-heating module;

[0025] The upper end of the flexible protective case 1 is provided with a battery placement port 3 that communicates with its internal space. The battery placement port 3 at the upper end of the flexible protective case 1 is provided with an adjustment component 4, which can adjust the tightness of the battery placement port 3 at the upper end of the flexible protective case 1.

[0026] In the above embodiments, the flexible protective sleeve 1 of this application consists of two layers. The outer protective layer 101 located on the outside mainly serves to resist the intrusion of wind, rain and other external elements into the interior of the insulation sleeve. The inner lining insulation layer 102 located on the inside mainly serves to prevent the loss of internal temperature of the insulation sleeve during use.

[0027] The independent pocket 2 on the inner insulation layer 102 can be used to equip a self-heating module with a heating function. When the user needs to use the drone outdoors in winter, the drone battery can be inserted through the battery placement port 3 of the flexible protective sleeve 1. The battery placement port 3 can be tightened using the adjusting piece 4. The heat generated by the self-heating module can continuously act on the drone battery inside the flexible protective sleeve 1, thereby heating and insulating the drone battery. This ensures that the drone battery will not become unusable due to its own low temperature during use. The insulation sleeve of this application uses a self-heating module (the self-heating module can be a hand warmer, a patch-type heat pack, or other common heating devices that do not require external wiring during use). It does not require external wiring during use, making it convenient to carry and providing excellent protection for the drone battery, allowing the drone battery to achieve a uniform heating and insulation effect inside.

[0028] Furthermore, the outer protective layer 101 is made of windproof nylon.

[0029] In the above embodiments, windproof nylon is a common outdoor fabric that achieves excellent wind and rain resistance through high-density weaving, special coatings, or composite processes. It is widely used in clothing, outdoor equipment, construction, and other fields. This material not only has good abrasion resistance and a long service life, but is also waterproof and stain-resistant. Furthermore, due to its very low surface porosity, it exhibits excellent windproof and down-proof properties. Since the thermal insulation jacket of this application is primarily intended for outdoor use in winter, it is particularly suitable to use windproof nylon for the outer protective layer 101, which is in direct contact with the environment.

[0030] Furthermore, the inner insulation layer 102 is specifically made of wool felt.

[0031] In the above embodiments, the wool fibers in the wool felt have high breaking strength and abrasion resistance more than 10 times that of cotton, and can withstand repeated friction without damage. The inner lining insulation layer 102 of this application is located inside the flexible protective sleeve 1. The user's hands, self-heating module, and drone battery will frequently come into contact with the inner lining insulation layer 102. This application uses wool felt as the inner lining insulation layer 102, which not only provides a more comfortable feel when the user's hands are inside the inner lining insulation layer 102, but also prevents wear and tear on the inner lining insulation layer 102 during frequent use. In addition, the thermal conductivity of wool felt is 0.03-0.04 W / m·K, and its heat retention performance is about 1.5 times that of chemical fiber materials. It also has moisture absorption and heat release properties, which can effectively maintain the stability of the internal temperature of the insulation sleeve when used in cold environments.

[0032] Furthermore, such as Figure 3 As shown, there are two independent inserts 2, which are symmetrically arranged inside the inner insulation layer 102.

[0033] In the above embodiments, a self-heating module can be placed in each of the two independent pockets 2 of this application. Compared with only a single independent pocket 2, the temperature stability inside the insulation sleeve and the heat preservation ability of the drone battery are better in this application.

[0034] Furthermore, such as Figure 3 As shown, the independent pocket 2 is an elastic mesh pocket, and the other three side lines of the elastic mesh pocket, except for the top side line, are all sewn onto the inner lining insulation layer 102 with thread.

[0035] In the above embodiments, only the top edge of the elastic mesh bag and the inner insulation layer 102 are not sewn together. This allows the elastic mesh bag to form a pocket structure inside the inner insulation layer 102, enabling the user to place the self-heating module inside. The elastic mesh bag of this application is elastic; after the self-heating module is placed inside, the elastic mesh bag can use its own elasticity to fix the self-heating module in place. At the same time, the mesh openings on the elastic mesh bag ensure that the heat generated by the self-heating module can be smoothly transferred to the drone battery inside the insulation sleeve.

[0036] Furthermore, such as Figure 1 and Figure 3 As shown, pearl cotton 5 covered with aluminum film is fixed in the area of ​​the inner lining insulation layer 102 directly opposite the independent pocket 2.

[0037] In the above embodiments, when using the thermal insulation sleeve of this application, the self-heating module installed in the independent pocket 2 is preferably a commercially available hand warmer. Hand warmers are not only inexpensive and have a long heating time, but they are also small in size, and the limited temperature they generate will not cause thermal damage to the drone battery. However, most commonly used hand warmers are patch-type. When using them, the back cover is peeled off, and the exposed adhesive surface is applied to the area that needs to be heated. In order to improve the insulation performance, the inner material of the thermal insulation sleeve of this application is made of wool felt. If the hand warmer is directly applied to the wool felt, not only is the fixing effect poor, but when the hand warmer is removed, the wool felt is easily torn off as well, causing irreversible damage to the inside of the thermal insulation sleeve. Therefore, this application sews pearl cotton with an aluminum film laminated on the outer surface (this material is the same as the thermal packaging material commonly used in takeout or express delivery) on the inner insulation layer 102 in the area corresponding to the independent pocket 2. The aluminum film on the surface of the pearl cotton not only makes it easy to stick the hand warmer, but also enhances the insulation capacity of the corresponding position of the hand warmer.

[0038] Furthermore, such as Figure 2 As shown, the adjusting member 4 includes a threading channel 41 sewn on the upper side of the battery placement opening 3. A notch 42 is provided on one side of the threading channel 41. An elastic band 43 is threaded through the threading channel 41. Both ends of the elastic band 43 extend from the notch 42 of the threading channel 41 to its outer side.

[0039] In the above embodiments, after placing the drone battery inside the protective case of this application, in order to prevent the drone battery from falling out of the battery placement opening 3 of the protective case, and to prevent the heat used inside the protective case for heating and keeping the drone battery warm from escaping through the battery placement opening 3, the user can tighten the battery placement opening 3 by pulling on both ends of the elastic band 43 after placing the drone battery into the protective case, and keep the battery placement opening 3 in a tightened state by tying the two ends of the elastic band 43. This can effectively fix the drone battery, preventing it from falling out of the protective case during user movement. In addition, after the size of the battery placement opening 3 is tightened by the elastic band 43, unnecessary heat loss from the battery placement opening 3 inside the protective case can also be effectively controlled.

[0040] The implementation principle of this embodiment is as follows: Before use, loosen the elastic band 43 at the battery placement opening 3 on the flexible protective sleeve 1; next, the user peels off the top cover of the pre-prepared hand warmer and places it in the independent pocket 2 inside the inner insulation layer 102, and then sticks it inside the independent pocket 2. Next, place the drone battery to be heated and insulated into the inner insulation layer 102 of the insulation sleeve, pull out the elastic band 43, and after the battery placement opening 3 is tightened, tie the two ends of the elastic band 43 to secure it. This insulation sleeve is suitable for insulating drone batteries outdoors in winter, ensuring the drone battery is within a suitable temperature range when needed. This insulation sleeve is simple to manufacture and has low material costs. In practical application, by insulating the battery-powered drone, the battery life can be restored to most of its normal operating level. The manufacturing cost of a single insulation sleeve is less than 20 yuan, making the product highly cost-effective.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A drone battery cryogenic thermal insulation jacket, characterized in that: Includes a flexible protective sleeve (1), which is made of two layers of fabric sewn together, with the outer fabric being the outer protective layer (101) and the inner fabric being the inner insulation layer (102). The inner lining insulation layer (102) is provided with an independent insert (2) for installing the self-heating module. The upper end of the flexible protective sleeve (1) is provided with a battery placement port (3) that communicates with its internal space. An adjustment component (4) is provided on the battery placement port (3) at the upper end of the flexible protective sleeve (1). The tightness of the battery placement port (3) at the upper end of the flexible protective sleeve (1) can be adjusted by the adjustment component (4).

2. The drone battery cryogenic thermal retention sleeve of claim 1, wherein: The outer protective layer (101) is made of windproof nylon.

3. The drone battery cryogenic thermal retention sleeve of claim 2, wherein: The specific material of the inner lining insulation layer (102) is wool felt.

4. The drone battery cryogenic thermal retention sleeve of any one of claims 1-3, wherein: The number of the independent inserts (2) is two, and the two independent inserts (2) are symmetrically arranged inside the inner lining insulation layer (102).

5. The drone battery cryogenic thermal retention sleeve of claim 4, wherein: The independent pocket (2) is an elastic mesh pocket, and the other three side lines of the elastic mesh pocket, except for the upper side line, are all sewn onto the inner lining insulation layer (102) by thread.

6. The drone battery cryogenic thermal retention sleeve of claim 5, wherein: Pearl cotton (5) covered with aluminum film is fixed in the area of ​​the inner lining insulation layer (102) directly opposite the independent insert (2).

7. The drone battery cryogenic thermal retention sleeve of any one of claims 1-3, wherein: The adjusting member (4) includes a threading channel (41) sewn on the upper side of the battery placement opening (3). One side of the threading channel (41) has a notch (42). An elastic band (43) is threaded through the threading channel (41). Both ends of the elastic band (43) extend from the notch (42) of the threading channel (41) to its outer side.

Images