RU202082U1 - ELECTRIC HEATED INNER GLOVE - Google Patents

Abstract

Electrically heated inner gloves are single-layer gloves made of bi-directionally elastic woven fabric of the "supplex" type with heating resistive wires made of metallized polymer threads fixed in a wave-like trajectory on the inner side of the glove and located over the entire surface of the hand with the exception of the front surface of the distal phalanges of the index, the middle and ring fingers and the front of the thumb, tightly fitting the hand, providing ease of putting on and using other “external” protective gloves / mittens while effectively transferring heat from the heating elements to the skin surface.

The ability to position the power supply in any convenient place from the wrist to the shoulder joint, including under outerwear, not only increases the user's comfort when using electric heated inner gloves, but also significantly reduces the likelihood of mechanical impact on the power source during active movements of the user during execution physical work, and also increases the efficiency of the power source at low ambient temperatures due to its heating by the user's natural heat when placed under outer clothing.

The heating power control unit, which automatically maintains the temperature of the user's hands in the specified range, can be located on the cuff for placing the battery, which completely avoids accidental impact on the heating control button when performing work of varying complexity with hands or on the back of the pastern, and the sensitivity The heating control buttons can be pressed through an outer protective glove worn over an electrically heated inner glove. There are options for the implementation of electric heated inner gloves with a heating power control unit based on pulse-width modulation to ensure the choice of the optimal temperature regime for the user while maintaining uniform heating of the hand surface when changing intensity, located on the cuff to accommodate the power source or on the back of the metacarpus.

Full retention of fine motor skills of the hands when using electric heated inner gloves, provides the ability to work with keyboards and control panels of various types, while maintaining the user's thermal comfort at low ambient temperatures; in the presence of conductive zones on the anterior surface of the distal phalanges of the fingers, it is also possible to control various devices using touch panels and touch screens.

Description

The utility model relates to heat-protective clothing, namely, gloves with active heating, intended for use in conjunction with any types of protective gloves (with passive heating, fire-resistant, chemical-resistant, vibration-resistant, resistant to cuts and punctures, etc.) as an internal attachment that increases the comfort and performance of the user at low ambient temperatures.

Known gloves with heating (patent RU No. 72823, IPC А41D 19/00, published on May 10, 2008), containing electric heating elements connected to a power supply through a switching system and installed inside in the area of the back of the fingers. The heating element of the index finger is located on the side of its fold, and the compartment for the index finger has a longitudinal cut with a detachable, closing connection. Electric heating elements are made in the form of flexible carbon fiber materials and are connected in parallel, and the power source is located in a special container formed on the outside on the back of the glove. In this case, the power supply for the heating elements is plate-type electric batteries based on fluorocarbon-lithium-non-aqueous electrolyte, collected in a package of at least two pieces, and connected through a connector. A thermal relay is used as a switching element. The disadvantages of this device are the susceptibility of heating elements to mechanical damage during intensive operation and their fire hazard, low efficiency due to the small heating area (heating elements are located only on the fingers on one side), the impossibility of choosing the optimal temperature regime for the user, the absence of an on / off button (the device is turned on / off by connecting / disconnecting the power source), which reduces the usability of the device.

Known heating gloves (patent RU No. 152780, IPC A41D 19/00, published on 03/26/2015 and patent RU No. 192561 U1, IPC A41D 19/00, A41D 13/08, published on 09/24/2019), containing connected to a power source through a switching system and installed inside a multilayer tissue in the area of the back of the distal phalanges of the fingers, metacarpus and covering the wrist joint, electric heating elements made in the form of multilayer electrically heated mats made of lavsan threads with resistive silver sputtering, to increase the efficiency of heating elements, the heated mats include reflective layer made of aluminum film by vacuum deposition. The presence (pressure) sensor on the arm ensures that the hand warmer is switched on and functioning only when a glove is worn and tightly wrapped around the hand. The heating elements are powered by built-in lithium-ion polymer batteries located on the arm on the back of the hand. A thermostat (patent RU No. 152780) is used as a switching element, which includes heating at a temperature inside the glove below 28 ° C and turns off at a temperature of 34 ° C, or a photoplethysmographic sensor (patent RU No. 192561 U1), which turns on heating in case of violation of regional blood flow corresponding temperature below 28 ° C, and turning off the heating with an increase in blood flow at a temperature of 34 ° C. The disadvantages of these heating gloves are the low heating efficiency due to the location of the heating elements only on the back of the hand and the wrist joint, as well as because of the significant isolation of the heating elements from the heated surface due to their location inside the multilayer mats; lack of the ability to select a temperature regime and turn on / off the device at the request of the user; large thickness and insufficient flexibility, excluding the possibility of using in conjunction with other protective gloves, the location of the power source in the area of possible mechanical impact when the user performs intensive movements.

The closest technical solution, chosen as a prototype, is electrically heated gloves (patent RU No. 195091 U1, IPC A41D 19/00, published on January 15, 2019), consisting of an outer protective and inner insulating woven layers containing connected to a built-in power source through switching system - electric heating elements based on heating resistive wires made of metallized polymer threads, fixed from the inside on the fabric basis of the inner layer so as to heat almost the entire surface of the hand, except for the anterior surface of the distal phalanges of the index, middle and ring fingers and the front surface of the thumb. The heating intensity is controlled by the user using the control module through the use of pulse width modulation. The power supply is placed in a special pocket on the outer surface of the gaiter on the front of the hand.

The essential features of the prototype that coincide with the features of the claimed utility model are:

performed function - active heating of human hands;

fireproof flexible heating elements based on metallized polymer threads;

control of the intensity of heating through the use of pulse-width modulation;

autonomous power source (set of rechargeable batteries).

The disadvantages of the electrically heated gloves described in the patent are:

multilayer, excluding the possibility of using electrically heated gloves together with other protective gloves / mittens;

retention of fine motor skills insufficient for working with the keyboard;

the location of the power source in the zone of possible mechanical effects during active movements of the user during physical work.

The objective of the proposed utility model is to create an effective safe device for electric heating of the hands, which is used to increase the user's thermal comfort when used in conjunction with any protective devices for the hands or independently, as well as to maintain fine motor skills sufficient for working with various types of keyboards and control panels.

The technical result is the creation of an electrically heated glove based on effective fireproof flexible heating elements that heat almost the entire surface of the hand; do not reduce fine motor skills of the user, easily put on under any protective gloves / mittens.

The technical result is achieved due to the fact that a heating single-layer glove made of bi-directionally elastic woven material of the "supplex" type with heating resistive wires made of metallized polymer threads fixed along a wavy trajectory on the inner side of the glove and located over the entire surface of the hand except for the front surface of the distal phalanges of the index, middle and ring fingers and the front surface of the thumb, tightly fits the hand, providing ease of putting on over it and using other "external" protective gloves / mittens while effectively transferring heat from heating elements to the skin surface, while the power source is fixed on a special separate cuff and its location is defined by the user in any convenient place from the wrist to the shoulder joint, and the heating control unit can be placed on the back of the metacarpus or on the cuff.

The tight fit of the inner glove to the hand, its small thickness and the absence of a power source directly on the inner glove with electric heating makes it easier to put on the protective glove over the inner heated glove, ensures that all the functional properties of the outer protective glove are preserved (protection from cold and wind, vibration protection, chemical resistance , resistance to cuts, punctures and other mechanical influences, etc.), and also makes it possible to use any devices usually worn in the area of the wrist joint (watches, navigation devices).

Full retention of fine motor skills of the hands when using inner gloves with electric heating provides the ability to work with keyboards and control panels of various types, while maintaining the user's thermal comfort at low ambient temperatures; if there are conductive zones on the anterior surface of the distal phalanges of the fingers, it is also possible to control various devices using touch panels and touch screens.

Consequently, the claimed utility model meets the requirements of novelty.

The essence of the utility model is illustrated in FIG. 1 (general view of electrically heated inner gloves, versions), FIG. 2 (options for cuff placement with power supply).

The following positions are indicated in the figures:

1 - fabric base;

2 - flexible heating wire;

3 - heating power control unit;

4 - a set of rechargeable batteries;

5 - cuff for battery placement;

6 - external connector for charging batteries;

7 - connector for connecting storage batteries to the glove heating system;

8 - extension cord for connecting batteries.

The utility model is a single-layer inner glove with electric heating (see Fig. 1), consisting of a bi-directional supplex fabric base 1 with flexible heating resistive wires 2 fixed to it, a heating power control unit 3 and a set of rechargeable batteries 4 placed on the cuff 5.

The base material, elastic in two directions, high flexibility and small cross-sectional diameter of the heating wire, the wavy trajectory of its location ensure the exact correspondence of the inner glove to the anatomical features of the human hand; The tight fit and low thickness make it possible to use electrically heated inner gloves in conjunction with various protective gloves / mittens that can be easily put on over the inner glove.

Flexible heating wire 2 is located along a wave-like path on the inner surface of the fabric base 1 of the inner glove and is in direct contact with the skin surface due to the tight fit of the fabric base, elastic in two directions, which increases the efficiency of the device as a whole due to the transfer of heat from the heating element directly to the heated one object - hands. At the same time, the heating element is safe and easy to use due to the properties of a heating wire made of polymer filaments with resistive sputtering of metals (for example, lavsan filaments metallized with silver or copper):

fire safety;

high heating rate;

small cross-sectional diameter, high flexibility;

resistance to mechanical stress.

Heating elements based on resistive wire 2 are located over the entire surface of the hand, with the exception of the anterior surface of the distal phalanges of the index, middle and ring fingers and the front surface of the thumb, which provides heating for more than 85% of the surface of the hand. At the same time, the tactile sensations of the user are preserved, and the reliability of the device is also increased due to the absence of the risk of damage to the wire in the places of the most likely strong mechanical impact when the user performs various actions. The undulating trajectory of the heating wire is calculated taking into account the length of the wire required to achieve the specified maximum heating temperature and provides uniform heating of the hand while maintaining high flexibility of the inner glove, which helps to maintain fine motor skills of the user and makes it easier to don and use "external" protective gloves / mittens.

The power source for one inner glove is a set of two series-connected lithium-polymer rechargeable batteries, equipped with a balance board with a charge-discharge controller and short circuit protection. The battery pack provides a nominal voltage of 7.4 V. Lithium polymer batteries are more fire and explosion proof than lithium-ion batteries, which improves overall product safety. The set of rechargeable batteries 4 is placed in a special pocket on the outer surface of the cuff 5, closed with a textile Velcro fastener. For secure attachment to the user's hand, the cuff is equipped with a tightening element with adjustable textile Velcro fasteners. To charge the rechargeable batteries, connect the battery charging connector 6 to a charger operating on an AC 220 V. The set of rechargeable batteries 4 is connected to the inner gloves with electric heating directly through the connector for connecting the batteries to the heating system of the glove 7. Cuff 5 with a source power supply is located in any place convenient for the user from the wrist to the shoulder joint, for which an extension cord 8 is used (Fig. 2). The operating time of electrically heated gloves from a set of rechargeable batteries is from 1.5 to 6 hours, depending on the selected operating mode.

The heating power control unit 3 can be located on the cuff for placing the battery, which allows you to completely avoid accidental impact on the control element - the heating control button when performing work of varying complexity with your hands, or on the back of the pastern, which makes it easy to control the operation of the device with a low probability accidental impact on the control. An embodiment of the electrically heated inner glove is possible, when the sensitivity of the heating control button allows pressing through an outer protective glove worn over the electrically heated inner glove.

To turn on / off the device, press the heating control button. After switching on, the inner gloves with electric heating work in automatic mode, without requiring the user's attention: using two temperature sensors, the temperature of the hands is maintained in a comfortable range for the user (the heating turns on at a temperature of 28 ° C and turns off when the temperature reaches 35 ° C).

According to another embodiment of an electrically heated inner glove, the heating power is controlled with the ability to select the optimal temperature for the user using a PWM controller, which allows you to maintain uniform heating of the hand surface when changing intensity, since in any heating mode, all elements of flexible heaters are used, only their temperature changes depending on the current value. By successively pressing the heating control button, you can select one of three modes, accompanied by light indication of different colors.

Possible heating modes:

30% power mode (economy mode);

60% power mode;

100% power mode.

The control unit 3 with a PWM controller is located on the cuff to accommodate the battery 5.

The technical and economic efficiency of the proposed inner gloves with electric heating is to provide effective heating of more than 85% of the surface of the hand with a small thickness, tight fit and exact anatomical correspondence of the user's hand, which allows maintaining fine motor skills for working with various types of keyboards, control panels and touch screens , and allows for joint use with various protective devices of the hands, including gloves / mittens designed to protect against cold, wind and / or moisture, resistant to cuts, punctures, chemical influences, vibration-resistant properties, etc.

The useful model of electrically heated gloves is industrially reproducible using standard sewing equipment, can be used as part of heated clothing sets, hand protectors and as an independent product, has shown positive results during implementation and is characterized by compliance with the "Industrial applicability" criterion in light industry.

The proposed utility model can be used to improve the user's performance in low ambient temperatures by ensuring the thermal comfort of the hands for a long time when working in "external" gloves / mittens with various protective properties, as well as working with any kind of keyboards and control panels ...

Claims (2)

1. An inner glove with electric heating, containing electric heating elements connected to an autonomous power source through a switching system based on resistive wires made of metallized polymer threads, fixed along a wavy path on the inner side of the glove and located over the entire surface of the hand, with the exception of the anterior surface of the distal phalanges of the index, middle and the ring finger and the front surface of the thumb, while the power source is fixed on a separate cuff and is located anywhere from the wrist to the shoulder joint, characterized in that the single-layer elastic in two directions fabric base with heating elements tightly fits the hands, and the control unit heating power, which provides automatic maintenance of the user's hand temperature in a given range using two temperature sensors, can be located both on the cuff to accommodate the power source, and on the back of the pastern. 2. An electrically heated inner glove according to claim 1, characterized in that the heating power control unit provides the ability to select the optimal temperature regime for the user through the use of pulse-width modulation.

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