Portable hand warmer

Abstract

The utility model relates to the technical field of heating appliances, and provides a portable hand warmer, which comprises a shell assembly, a heating assembly, a circuit assembly, a first filler and a second filler, and is characterized in that the heating assembly is arranged in the shell assembly, the circuit assembly is arranged in the shell assembly, and the first filler is arranged in the circuit assembly. The heating assembly and the circuit assembly are electrically connected, a first filler and a second filler are arranged in an internal gap of the shell assembly, the shell assembly comprises a main shell, a cover plate, an anti-skid pad, a battery bin, a first groove, a bin cover, a second groove and a hanging hole, the cover plate is connected to the back face of the main shell through screws, and the anti-skid pad is arranged on the back face of the main shell. Non-slip mats are arranged on the front end face of the main shell and the rear end face of the cover plate, a battery bin is connected to the lower side of the interior of the main shell through screws, and a first groove is formed in the sitting side end face of the main shell. By means of the technical scheme, the problems that in the prior art, carrying is not convenient, and the local temperature is too high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating appliances, and specifically, to a portable hand warmer. Background Art

[0002] There are two types of hand warmers. One is heated by heating water, that is, the so-called hot water bag. Different from the traditional hot water bag, the electric hot water bag saves the trouble of adding water. As long as the power is plugged in and waited for more than 10 minutes, it can generate heat. In fact, the water inside is boiled, so the temperature is generally very high. The other is heated by chemical reaction. The hand warmers on the market are this type. Through the contact of chemical substances inside, heat is generated, and the temperature is about 40 °C. Another type uses the function of lithium batteries, with an internal heating sheet for heating, and uses a USB interface for charging and discharging, similar to a warm hand mouse pad. Due to the charging and discharging function of lithium batteries, it can generally be used as a mobile power source.

[0003] In the prior art, the external power supply time of the hand warmer is short, and a conversion head and a charging cable are required for charging, so that an extra charging cable needs to be carried during short trips, making the product inconvenient to carry. At the same time, the existing heating module cannot achieve uniform heating as a whole, and the local temperature will become high when the user uses it, resulting in poor hand warming effect.

[0004] Therefore, it is necessary to design a portable hand warmer that is convenient to carry and has uniform heating. Summary of the Utility Model

[0005] The utility model provides a portable hand warmer, which solves the problems of inconvenience in carrying and too high local temperature in the related art.

[0006] The technical solution of the utility model is as follows: A portable hand warmer includes a housing assembly, a heating assembly, a circuit assembly, a first filler and a second filler. The heating assembly is arranged inside the housing assembly, the circuit assembly is arranged inside the housing assembly, the heating assembly and the circuit assembly are electrically connected, and the first filler and the second filler are arranged at the internal gaps of the housing assembly;

[0007] According to the above technical solution, the housing assembly includes a main housing, a cover plate, a non-slip pad, a battery compartment, a first groove, a compartment cover, a second groove and a hanging hole. The back of the main housing is connected to the cover plate by screws. Non-slip pads are arranged on the front end face of the main housing and the rear end face of the cover plate. The battery compartment is connected to the lower side inside the main housing by screws. A first groove is arranged on the left end face of the main housing, a second groove is arranged on the right end face of the main housing. The compartment cover is slidably connected below the battery compartment, and a hanging hole is arranged at one corner of the main housing;

[0008] According to the above technical solution, the heating component includes a heating plate, a first heat sink plate, and a second heat sink plate. The heating plate is connected to the inside of the main housing by screws. The first heat sink plate is installed at the front end of the heating plate by screws, and the second heat sink plate is installed at the rear end of the heating plate by screws;

[0009] According to the above technical solution, the circuit component includes a control board, a power button, a display screen, a plug, a charging cable, a lithium battery, and a temperature sensor. The control board is connected to the upper side inside the main housing by screws. The display screen is installed on the upper side end face of the main housing. The power button is installed through the upper side end face of the main housing. The plug is connected to the inside of the first slot through a bearing. The charging cable is installed inside the second slot. The lithium battery is installed inside the battery compartment. Temperature sensors are provided at the front ends of the first heat sink plate and the second heat sink plate. The lithium battery is electrically connected to the control board. The control board is electrically connected to the power button, the display screen, the plug, and the temperature sensor. The input end of the charging cable is electrically connected to the control board;

[0010] According to the above technical solution, the first filler is a heat-insulating material. The first filler is provided at the gap between the housing component and the heating component. The heat generated by the heating plate is insulated by the heat-insulating cotton, reducing power consumption;

[0011] According to the above technical solution, the second filler is a heat-insulating material. The second filler is provided at the gap between the lithium battery and the battery compartment to prevent the heating plate from being at a high temperature for a long time, which affects the service life of the lithium battery.

[0012] The working principle and beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, by providing a heating component, the heating plate generates heat and transfers the heat to the first heat sink plate and the second heat sink plate. The first heat sink plate and the second heat sink plate can evenly diffuse the heat. Moreover, the first heat sink plate and the second heat sink plate are made of superconducting aluminum material, which not only realizes the uniform and efficient diffusion of heat but also significantly reduces the energy loss during the heat transfer process. Thus, the problems of uneven heating and easy formation of local high-temperature hot spots commonly existing in the traditional technology are solved, and at the same time, the heat loss during heat transfer is reduced.

[0014] 2. By providing a circuit component, the plug is rotated out from the first slot and inserted into the socket, and the lithium battery can be directly charged using the plug, avoiding the need to use an adapter and cables. At the same time, the charging cable can charge digital products such as mobile phones. The plug is rotatably stored in the first slot of the main housing, and the charging cable is stored in the second slot, reducing the cables to be carried around and increasing the usability of the product. Description of the Drawings

[0015] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 is a front structural schematic diagram of the present utility model;

[0017] Figure 2 is a back structural schematic diagram of the present utility model;

[0018] Figure 3 is an internal structural schematic diagram of the present utility model;

[0019] Figure 4 is a side sectional schematic diagram of the present utility model.

[0020] In the figure: 1. Housing assembly; 101. Main housing; 102. Cover plate; 103. Anti-slip pad; 104. Battery compartment; 105. First groove; 106. Compartment cover; 107. Second groove; 108. Hanging hole;

[0021] 2. Heating assembly; 201. Heating plate; 202. First heat sink plate; 203. Second heat sink plate;

[0022] 3. Circuit assembly; 301. Control board; 302. Power button; 303. Display screen; 304. Plug; 305. Charging cable; 306. Lithium battery; 307. Temperature sensor;

[0023] 4. First filler;

[0024] 5. Second filler. Specific embodiments

[0025] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0026] As Figures 1 to 4 shown, this embodiment provides a portable hand warmer, including a housing assembly 1, a heating assembly 2, a circuit assembly 3, a first filler 4, and a second filler 5. The heating assembly 2 is disposed inside the housing assembly 1, the circuit assembly 3 is disposed inside the housing assembly 1, the heating assembly 2 and the circuit assembly 3 are electrically connected, and the first filler 4 and the second filler 5 are disposed at the internal gaps of the housing assembly 1;

[0027] The housing assembly 1 includes a main housing 101, a cover plate 102, a non-slip pad 103, a battery compartment 104, a first groove 105, a compartment cover 106, a second groove 107, and a hanging hole 108. The back of the main housing 101 is connected to the cover plate 102 by screws. The front end face of the main housing 101 and the rear end face of the cover plate 102 are provided with non-slip pads 103. The lower side inside the main housing 101 is connected to the battery compartment 104 by screws. The left end face of the main housing 101 is provided with a first groove 105. The right end face of the main housing 101 is provided with a second groove 107. The lower part of the battery compartment 104 is connected by sliding with the compartment cover 106. A hanging hole 108 is provided at one corner of the main housing 101;

[0028] The heating assembly 2 includes a heating plate 201, a first heat sink 202, and a second heat sink 203. The heating plate 201 is connected inside the main housing 101 by screws. The first heat sink 202 is installed at the front end of the heating plate 201 by screws. The second heat sink 203 is installed at the rear end of the heating plate 201 by screws. The heating plate generates heat and transfers the heat to the first heat sink and the second heat sink. The first heat sink and the second heat sink can evenly diffuse the heat, solving the problems of uneven heating and easy generation of local high temperature in the prior art;

[0029] The circuit assembly 3 includes a control board 301, a power button 302, a display screen 303, a plug 304, a charging cable 305, a lithium battery 306, and a temperature sensor 307. The control board 301 is connected inside the upper side of the main housing 101 by screws. The display screen 303 is installed on the upper side end face of the main housing 101. The power button 302 is installed through the upper side end face of the main housing 101. The plug 304 is connected inside the first groove 105 by a bearing. The charging cable 305 is installed inside the second groove 107. The lithium battery 306 is installed inside the battery compartment 104. Temperature sensors 307 are provided at the front ends of both the first heat sink 202 and the second heat sink 203. The lithium battery 306 is electrically connected to the control board 301. The control board 301 is electrically connected to the power button 302, the display screen 303, the plug 304, and the temperature sensor 307. The input end of the charging cable 305 is electrically connected to the control board 301. The plug can charge the lithium battery, and at the same time, the charging cable can charge digital products such as mobile phones. The plug is rotated and stored in the first groove of the main housing, and the charging cable is stored in the second groove, reducing the cables carried with you and increasing the usability of the product;

[0030] The first filler 4 can be heat-insulating cotton;

[0031] A first filler 4 is provided at the gap between the housing assembly 1 and the heating assembly 2. The heat dissipated by the heating plate 201 is insulated by the heat-insulating cotton, reducing power consumption;

[0032] The second filler 5 can be heat-insulating aluminum foil;

[0033] A second filler 5 is provided at the gap between the lithium battery 306 and the battery compartment 104 to prevent the heating plate 201 from being at a high temperature for a long time and affecting the life of the lithium battery 306.

[0034] In order to better conduct heat, in the embodiment of the present utility model, the first heat sink plate 202 and the second heat sink plate 203 are made of superconducting aluminum material, which has high thermal conductivity to evenly diffuse heat and reduce heat loss.

[0035] In order to cope with the lack of power supply during long-term outdoor use, in the embodiment of the present utility model, the lithium battery 306 is a detachable lithium battery 306, which is convenient for replacing the lithium battery 306 to achieve longer use time.

[0036] Working principle: The user first pushes out the lid 106, puts in the lithium battery 306 and then pushes the lid 106 in. When not heating, press the power button 302 briefly, and the display screen 303 shows the remaining power of the current lithium battery 306. Press the power button 302 long, and heating starts. At this time, press the power button 302 briefly to adjust the heating temperature. The low temperature gear, medium temperature gear and high temperature gear can be selected. When selecting, the display screen 303 shows the current option, and the controller controls the heating plate 201 to increase power consumption, so that the heating plate 201 quickly heats up. The heat of the heating plate 201 is evenly dissipated on the main housing 101 and the cover plate 102 through the first heat sink plate 202 and the second heat sink plate 203, and the temperature sensor 307 obtains the current temperature of the first heat sink plate 202 and the second heat sink plate 203.

[0037] When the set temperature is reached, the controller reduces the power supply to the heating plate 201, reduces power consumption and maintains the set temperature. The first filler 4 can prevent the heat of the heating plate 201 from quickly dissipating, and the second filler 5 can prevent the lithium battery 306 from being affected by high temperature and thus reduce the service life. While heating, the temperature sensor 307 will obtain the outer surface temperature. When the temperature is too high, the controller stops the power supply to the heating plate 201 to avoid the risk of spontaneous combustion due to too high temperature; while heating, the charging cable 305 can be used to charge digital devices. When the lithium battery 306 has no power, rotate the plug 304 out of the first slot 105 and insert it into the power socket to directly use the socket for fast charging; a handle rope can pass through the hanging hole 108, which is convenient for users to use and avoids carrying too many converters and cables, increasing the convenience of using the product. The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A portable hand warmer, characterized in that: The invention comprises a shell component (1), a heating component (2), a circuit component (3), a first filler (4) and a second filler (5), and is characterized in that: the heating component (2) is arranged inside the shell component (1), the circuit component (3) is arranged inside the shell component (1), the heating component (2) and the circuit component (3) are electrically connected, and the first filler (4) and the second filler (5) are arranged in the internal gap of the shell component (1).

2. A portable hand warmer according to claim 1, characterized in that: The housing assembly (1) comprises a main housing (101), a cover plate (102), an anti-skid pad (103), a battery compartment (104), a first groove (105), a compartment cover (106), a second groove (107) and a hanging hole (108); the back of the main housing (101) is connected to the cover plate (102) by screws; the front end surface of the main housing (101) and the rear end surface of the cover plate (102) are provided with an anti-skid pad (103); the lower side of the interior of the main housing (101) is connected to the battery compartment (104) by screws; the left end surface of the main housing (101) is provided with a first groove (105); the right end surface of the main housing (101) is provided with a second groove (107); the lower side of the battery compartment (104) is connected to the compartment cover (106) by sliding; and a hanging hole (108) is provided at a corner of one side of the main housing (101).

3. A portable hand warmer according to claim 2, characterized in that: The heating component (2) comprises a heating plate (201), a first heat spreader (202) and a second heat spreader (203); the interior of the main housing (101) is connected to the heating plate (201) by screws; the front end of the heating plate (201) is mounted with the first heat spreader (202) by screws; and the rear end of the heating plate (201) is mounted with the second heat spreader (203) by screws.

4. A portable hand warmer according to claim 3, characterized in that: The circuit assembly (3) comprises a control board (301), a power button (302), a display screen (303), a plug (304), a charging cable (305), a lithium battery (306) and a temperature sensor (307); the control board (301) is connected to the upper side of the main housing (101) by screws; the display screen (303) is installed on the upper end surface of the main housing (101); the power button (302) is installed through the upper end surface of the main housing (101); the plug (304) is connected to the inside of the first slot (105) by a bearing; the second slot A charging cable (305) is installed inside the (107), a lithium battery (306) is installed inside the battery compartment (104), a temperature sensor (307) is provided at the front end of the first heat spreader (202) and the second heat spreader (203), the lithium battery (306) is electrically connected to the control board (301), the control board (301) is electrically connected to the power button (302), the display screen (303), the plug (304) and the temperature sensor (307), and the input end of the charging cable (305) is electrically connected to the control board (301).

5. A portable hand warmer according to claim 4, characterized in that: The first filler (4) is made of a heat-insulating material. The first filler (4) is arranged at the gap between the shell component (1) and the heating component (2). The heat emitted by the heating plate (201) is insulated by heat-insulating cotton, thereby reducing power consumption.

6. A portable hand warmer according to claim 5, characterized in that: The second filler (5) is made of heat-insulating material and is disposed in the gap between the lithium battery (306) and the battery compartment (104) to prevent the heating plate (201) from being at a high temperature for a long time, thereby affecting the life of the lithium battery (306).

Images