KR102019586B1 - Portable electric heat stick - Google Patents

Abstract

The present technology relates to a portable heat stick. In the portable heat transfer stick of the present technology, a heat transfer stick for exchanging heat with a liquid in a container, comprising: a body part including a receiving groove accommodating an upper opening of the container and a terminal part for connection to an external power source; And a heat generating part extending from the body part and generating heat using power supplied from the external power source, wherein a thread is formed on an inner side wall of the receiving groove and is formed on an outer side wall of the upper opening of the container. The top opening of the container is received in the receiving groove in a screwing manner.

Description

Portable electrothermal stick {PORTABLE ELECTRIC HEAT STICK}

The present invention relates to a portable heat stick, and more particularly to a portable heat stick of the USB power supply.

There are several forms of thermos. For example, a tumbler is provided between the inner and outer surfaces of the container, and includes a tumbler having a connector for applying power to the heating element (Korean Patent Publication No. 10-1329296, Title: Insulation and Hand Warmer Function). Combines a portable tumbler). In addition, there is a tumbler that forms a heating wire inside the double cup and keeps the drink warm through a USB connector detachable from the bottom of the tumbler (Korean Utility Model Publication No. 20-0476864, Design Name: Tumbler device having a cold temperature function). ).

These thermal insulation tumblers have a thermal insulation that can be maintained and heated to a temperature set by a user by using an external power source, but focuses only on the thermal insulation and thus lacks portability.

In other words, it is necessary to put the water for warming in the container in advance, and such water must be heated to a certain temperature or more before it can be insulated. do. If you are in a hurry to go out during this preliminary work, you may forget the tumbler.

In addition, the heating element mounted in the tumbler is mainly located between the lower part of the container or between the inner and outer surfaces of the container. This arrangement requires a long time for heating because the heating element does not directly contact water. In urgent situations, waiting to heat up to a set temperature requires patience.

On the other hand, while using the conventional tumbler as described above, if you do not put the water in advance, you can use the bottled water purchased on-site, but after pouring the bottled water in a warm tumbler, close the tumbler stopper, turn on the switch and turn on the temperature set The process of waiting for warming up accumulates fatigue for the user. This, in turn, reduces the product's availability and causes the product to be taken away from the market.

In addition, a higher output heating element may be applied to the tumbler in order to reduce the heating standby time, but the power consumption is increased so that the product becomes heavier, which may result in the frontal contradiction of portability.

The inventor of the present invention has completed the present invention after a long research and trial and error to solve these problems.

Embodiment of the present invention provides a heat transfer stick of excellent structure and easy to use.

On the other hand, other unspecified objects of the present invention will be further considered within the range that can be easily inferred from the following detailed description and effects.

Heat transfer stick according to an embodiment of the present invention, a portable heat transfer stick that exchanges heat with the liquid in the container, the receiving groove for receiving the upper opening of the container, the body portion formed with a terminal portion for connecting to an external power source; And a heat generating part extending from the body part and generating heat using power supplied from the external power source, wherein a thread is formed on an inner side wall of the receiving groove and is formed on an outer side wall of the upper opening of the container. The upper opening of the container may be accommodated in the receiving groove in a screwing manner.

The heat generating part may include a conduit member extending downward from the base surface of the receiving groove, and a conductive member electrically connected to the terminal part and extending in the conduit member.

The body part may include a first body part in which the accommodating groove is formed and a second body part in which the terminal part is formed, and the first body part is provided with a coupling groove opposite to the accommodating groove, and the second body is formed. The coupling portion may be formed to be coupled to the coupling groove.

The second body part may be coupled to the first body part by a screw coupling method using a screw thread formed on an inner sidewall of the coupling groove and a screw thread formed on an outer sidewall of the coupling part.

The first body portion may further include a hollow portion having a hollow structure connecting the inner space of the receiving groove and the inner space of the coupling groove.

A first terminal is exposed on the base surface of the coupling groove, and a second terminal is formed on the bottom surface of the coupling portion facing the base surface of the coupling groove to protrude downward to make electrical contact with the first terminal. A current path from the terminal portion to the conductive member through the first terminal and the second terminal may be formed.

The exposed surface of the first terminal may have the same plane as the base surface of the coupling groove.

The present technology provides the user with the convenience of using warm water anytime and anywhere by providing a heat transfer stick with a highly portable and easy-to-use structure.

In addition, the technology can quickly reach the desired temperature with less power, enhancing portability and providing user convenience.

1 is a view schematically showing a cross-sectional view of a heat transfer stick according to an embodiment of the present invention.
FIG. 2 is a view schematically showing a cross-sectional view of a state in which an electrothermal stick is used in combination with a bottle of water according to an embodiment of the present invention.
3 is a view showing a detailed structure of the body portion according to an embodiment of the present invention.
4 is a plan view showing a first body part according to an exemplary embodiment of the present invention.
5 is a view showing a bottom view of the second body portion according to the embodiment of the present invention.
6 is a view showing a detailed structure of the body portion according to another embodiment of the present invention.
The accompanying drawings show that they are illustrated as a reference for understanding of the technical idea of the present invention, by which the scope of the present invention is not limited.

In the following, the most preferred embodiment of the present invention is described. In the drawings, the thickness and spacing are expressed for convenience of description and may be exaggerated compared to the actual physical thickness. In describing the present invention, well-known structures irrelevant to the gist of the present invention may be omitted. In adding reference numerals to the components of each drawing, it should be noted that the same components as much as possible, even if displayed on different drawings.

 1 is a diagram schematically showing a cross-sectional view of a heat transfer stick 10 according to an embodiment of the present invention.

2 is a view schematically showing a cross-sectional view of a state in which the electrothermal stick 10 according to the embodiment of the present invention is used in combination with the bottled water bottle 20.

1 and 2, the heat transfer stick 10 according to the embodiment of the present invention is coupled to the container 20 to heat exchange with the liquid 22 in the container 100 and the heat generating part 200. It includes.

The vessel 20 can be a bucket and the liquid 21 can be water.

The container 20 may be a 500 ml bottle of water with the lid removed. Bottles of water typically have a top opening (i.e., spout) of a standardized size regardless of their capacity, and the caps may be compatible with each other, even at different capacities or manufacturers. In the present invention, for convenience of description, it is assumed that the container 20 is 500ml bottled water with the lid removed.

Body portion 100 according to an embodiment of the present invention has the shape of a lid for preventing the spout of the 500ml bottled water (20). Although only a cross section is shown in the figure, the body part 100 may have a circular lid shape as a whole.

Body portion 100 has a receiving groove 112 for receiving the spout (22).

The spout 22 of the 500 ml bottled water 20 is formed with a thread 23 for engaging with the original lid. Typically, the thread may be formed to protrude from the outer side of the spout, but the thread 23 is shown as being recessed from the outer side of the spout 22, but is not limited thereto.

Corresponding to the thread 23, the thread 113 is formed protruding in the receiving groove 112 of the body portion. The thread 113 may protrude from the inner sidewall W in a helical direction along the inner sidewall of the receiving groove 112. Thread 113 is formed in the receiving groove of the body portion so that the screw 23 and the screw thread 23 of the bottle. Although the thread 113 is illustrated as being protruded from the inner sidewall W in the drawings, the thread 113 may be recessed. It is sufficient that the threads 23 of the container and the threads 113 of the receiving grooves have complementary shapes for screwing together.

Thus, 500ml bottled water 20 may be coupled to the body portion (100). The bottled water bottle 20 can be combined with the body portion 100 as if the bottled water bottle is combined with its original lid.

1 and 2, the body part 100 includes a terminal part 152. Although only a cross section is shown in the drawing, the terminal portion 152 may have an empty space of a rectangular parallelepiped. The terminal unit 152 may be a universal serial bus (USB) terminal. The terminal unit 152 may be a receptacle terminal that is a counter part of the plug 32 of the USB cable in order to receive power from the USB cable 30 connected to an external power source (not shown).

The external power source (not shown) may be, for example, an auxiliary battery used to charge a portable electronic device such as a smartphone. The auxiliary battery may have an input / output voltage / current value of DC 5V-1A.

As shown in the figure, in the present invention, the terminal portion 152 may be formed to have an extension length in the z direction. In addition, the USB cable 30 connected to an external power source (not shown) may be inserted into and coupled to the terminal unit 152 in the z direction. However, the present invention is not limited thereto, and the terminal part may be formed in other directions. That is, within the range in which the space for accommodating the plug 32 of the USB cable is provided, the terminal portion may be formed to have an extended length in the x direction or the y direction, and correspondingly, the USB cable plug may also be formed in the x direction or the y direction. It can also be inserted and coupled in the direction.

The heating part 200 according to the embodiment of the present invention extends in the z direction from the body part 100.

The heat generating unit 200 serves to generate heat using power supplied from an external power source (not shown).

To this end, the heat generating portion 200 is a conduit member 210 extending downward from the base surface (B) of the receiving groove 112 (corresponding to the ceiling (ceiling) surface of the receiving groove in the drawing), and the terminal portion 152 ) May be electrically connected to the wire member 220 to extend in the conduit member 210.

The conduit member 210 may be a tube-type heat transfer plate having a high heat transfer coefficient to receive heat generated from the conductor member and transfer it to the outside. In addition, the conduit member 210, as shown in Figure 2, because it is a part directly in contact with the drinkable water 21 may be a material having corrosion resistance and beautiful aesthetics and easy cleaning. For example, the conduit member may be made of SUS material.

The conductive member 220 may be an electrical resistance wire having a high resistance. For example, it may be nichrome wire. The wire member may be wound in a spiral or coil shape and provided in the conduit member 210. Although it may be provided in a straight line, the spiral or coil type is advantageous to increase the contact area with the heat transfer plate and to secure as much heat generation as necessary from a relatively small input power source.

When the water in the container reaches the temperature desired by the user by using the heat stick 10, the user rotates the body 100 in the opposite direction to lock the bottle 100 (just as when opening the lid of the bottle). After separation from the heated water can be used according to the application.

Heat transfer stick 10 according to an embodiment of the present invention is small and light, easy to carry, even when not prepared in advance has a structure that can be used directly in the 500ml bottled water can be easily obtained from the surroundings, It offers the convenience of using warm water wherever you are.

In addition, the heat-transfer stick 10 according to the embodiment of the present invention can reach the desired temperature quickly with little power by having the heat generating portion 200 in the form of the water submerged in the container. This can drive the heating stick even with a secondary battery for smartphones, greatly improving the portability of the heating stick, and provides the user with the convenience of not carrying the heavy lifting of the water holding thermos.

On the other hand, depending on the use environment it may not be a place to put the heat transfer stick 10 separated from the bottled water. Due to its portable nature, it is often used externally, but it is not easy to find a place to put the heat stick in the state where it is freshly separated from the bottle. Accordingly, according to an embodiment of the present invention, the body portion may have a self-removable structure. Hereinafter, the self-separating structure of the body part will be described in more detail with reference to FIGS. 3 to 6.

3 is a view showing a detailed structure of the body portion according to an embodiment of the present invention.

4 is a plan view showing a first body part according to an embodiment of the present invention, and FIG. 5 is a view showing a bottom view of a second body part according to an embodiment of the present invention.

As shown in FIGS. 3 to 5, the body part 100 includes a first body part 110 and a second body part 150 coupled to the first body part. The accommodation groove 112 described above is formed in the first body part 110, and the terminal part 152 described above is formed in the second body part 150.

The accommodation groove 112 described above may be provided below the first body part 110, and the terminal part 152 described above may be provided in the center of the second body part 150.

In addition, a coupling groove 114 for coupling with the second body portion 150 is formed at the opposite side of the receiving groove 112 in the first body portion 110. Coupling groove 114 may be provided in the upper portion of the first body portion (110).

The second body portion 150 has a coupling portion 154 coupled to the coupling groove 114 is formed.

Coupling portion 154 has a shape complementary to the coupling groove to be coupled to the coupling groove 114. For example, when the coupling groove 114 has a cylindrical groove shape having a length in the z direction, the coupling part 154 may have a cylindrical pillar shape having a length in the z direction.

The terminal unit 152 described above may be provided at the center of the coupling unit 154. Having a cylindrical shape having a length in the z direction for the engaging portion is suitable for forming the terminal portion to have an extended length in the z direction.

The coupling part 154 is inserted into and coupled to the coupling groove 114 to couple the first body part 110 and the second body part 150 to each other.

The coupling groove 114 and the coupling part 154 may be coupled in a screw coupling manner. To this end, the thread 115 may protrude from the inner sidewall of the coupling groove 114, and the thread 155 may be recessed from the outer sidewall of the coupling portion 154. The direction in which the threads are formed is not limited thereto, and the threads 115 may be recessed and the threads 155 may protrude, or both may protrude. It is sufficient that threads 115 and threads 155 have complementary shapes for screwing together.

According to an embodiment of the present invention, the first body portion 110 is further formed with a hollow portion 116 connecting the receiving groove 112 and the coupling groove 114. That is, the first body 110 includes a receiving groove 114 and the coupling groove 114 disposed in a direction facing each other, and a hollow portion 116 connecting them to each other.

The hollow part 116 of the hollow structure connects the internal empty space of the accommodation groove 112 and the internal empty space of the coupling groove 114 with each other. The receiving groove 112 and the coupling groove 114 is in communication with each other by the hollow portion 116. Thus, when the second body portion is coupled to the first body portion, the bottom surface P2 of the coupling portion of the second body portion may be exposed into the container 20 through the hollow portion 116.

The hollow part 116 provides an open space that can pour water 22 therein even while the body part 100 is coupled to the bottled water bottle 20.

That is, when the water reaches the desired temperature, the user can grasp only the second body portion 150 and rotate it to separate it from the first body portion 110 without removing the entire body portion (for example, with one hand). The first body part can be grasped, and the second body part can be grasped and rotated with the other hand to separate from each other), thus using the open space through the hollow part 116 to pour out the water 22 inside the bottle.

Although the hollow part 116 is illustrated as having a cylindrical hollow structure in the drawing, the present invention is not limited thereto. For example, the hollow part 116 may have various structures for pouring out water therein, for example, a polygonal column or a conical trapezoid of a square or a pentagon. It may have a shape.

According to such a body part having a separable structure of the first body part and the second body part, there is no need to separate a portion (eg, a heat generating part) submerged in water to pour out the water from the bottle. Therefore, cleanliness can be maintained even in an external use environment. Foreign substances are easily attached to the part where the water has been buried, but the heating part is not separated from the bottled water bottle and is combined, so it is not exposed to external foreign substances.

There may be a portion of the second body portion in which a small amount of water is buried (for example, the bottom surface P2 of the coupling portion), but the amount is relatively small compared to the amount of water in the heating portion, and the portion is hot like the heating portion. Because of this, it can be easily wiped by hand using tissue. The heating part is designed to have a large area to increase the heating efficiency and has a large area to which water can be buried, but the second body part is only exposed to the water through the hollow part, so it can be easily wiped out and cleaned in a bag. Easy to put on

As the body part has a self-removable structure in which the body part is separated into the first body part and the second body part, there is a need for electrical connection between the first body part 110 and the second body part 150.

To this end, as shown in FIGS. 3 to 5, terminals T1 and T2 for electrical connection are formed on surfaces where the first body part 110 and the second body part 150 face each other.

The first terminal T1 is formed on the base surface P1 of the coupling groove 114 of the first body part 110, and the coupling part of the second body part 150 facing the base surface P1 ( A second terminal T2 contacting the first terminal T1 may be formed on the bottom surface P2 of 154.

The exposed surface of the first terminal T1 may be formed at the same height as the base surface P1 of the coupling groove. That is, the exposed surface of the first terminal and the base surface of the coupling groove may have the same plane.

The second terminal T2 may protrude downward from the bottom surface P2 of the coupling portion.

Therefore, when the second body portion is screwed into the first body portion, the base portion P1 and the bottom surface P2 are closer to each other as the coupling portion 154 enters the coupling groove 114. As the base surface P1 and the bottom surface P2 get closer together, the second terminal T2 begins to contact the first terminal T1, and when the screwing is finished, the terminals are brought into close contact with each other to complete the process. Electrical contact can be made.

As shown in FIG. 3, a current path from the terminal portion 152 to the conductive member 220 through the first terminal T1 and the second terminal T2 may be formed in the direction A shown in the drawing.

In order to smoothly induce contact between the terminals T1 and T2 and prevent damage, the second terminal T2 may have an elastic protrusion structure, although not shown in the drawing. To this end, the second terminal T2 may have a leaf spring or a coil spring embedded in or installed into the bottom surface P2. For example, the second terminal protrudes downward, and pushes upwards (inside the bottom surface P2) while contacting the first terminal as the engaging portion enters the coupling groove, where the elasticity of the leaf spring or coil spring is obtained. The restoring force can maintain a constant contact force with the first terminal and the second terminal, and prevent the second terminal from excessively entering and damaging the first terminal.

In order to ensure a stable contact area between the terminals, it is preferable that the terrace portion P1 on which the first terminal T1 is disposed is not too narrow. On the other hand, since the hollow part 116 corresponds to the element for deleting the terrace part P1, the hollow part is combined with the hollow part so that the terrace part is not too narrowed by the hollow part formation and the hollow part is not too small by the terrace part formation. The size of the grooves and couplings can be designed in consideration of the terminal arrangement.

As shown in the figure, when viewed only in size, the inner space of the receiving groove 112 for accommodating the 500 ml bottled water spout is the largest, and then the inner space of the coupling groove 114, the second body portion is coupled, along the water The hollow portion 116 to be smaller becomes in order. As described above, in order to easily pour water, the larger the size of the hollow part 116 is advantageous, but the coupling groove reflects the secured area of the terminals T1 and T2 for electrical connection between the first body part and the second body part. And the size of the hollow portion can be determined.

The second body part 150 according to the embodiment of the present invention may further include a flange portion 156 positioned on the upper portion.

As shown in FIG. 3, the flange part 156 may be formed to have the same outer circumferential surface as the outer circumferential surface of the first body part 110.

The flange portion 156 provides a space for the user to hold by hand when opening and closing the second body portion.

At this time, the thread 113 for coupling with the container and the thread 115 for coupling with the second body portion have the same spiral propagation direction. That is, the locking direction for coupling the first body portion to the container and the locking direction for coupling the second body portion to the first body portion coincide. Likewise, the opening direction for separating the first body portion from the container and the opening direction for separating the second body portion from the first body portion coincide.

Therefore, when the first body portion is coupled to the container, the entire body portion can be coupled to the container at once by evenly rotating the first body portion and the second body portion in one direction with one hand. After the water is warmed to the desired temperature, only the second body portion can be separated by holding the first body portion with one hand and rotating the second body portion with the other hand. After storage after use, the first body part may be rotated to be separated from the container, and the second body part may be stored in combination with the first body part.

A structure for facilitating engagement and detachment of the second body portion is shown in FIG. 6.

6 is a view showing a detailed structure of the body portion according to another embodiment of the present invention.

As shown in FIG. 6, the first body portion 10 may further include a tapered portion 118. Except for the tapered portion, the same description as described above with reference to FIG. 3 may be applied.

The taper portion 118 is provided above the first body portion. The width of the upper body, that is, the closer to the second body portion, has a structure that decreases the width so that the user's hand does not touch the first body portion when the user grips and turns the flange portion 156 of the second body portion by hand. Provide an empty space. Therefore, when the second body portion is combined with or separated from the first body portion, easier manipulation is possible.

Although the technical spirit of the present invention has been specifically recorded in accordance with the above-described preferred embodiments, it should be noted that the above-described embodiment is for the purpose of description and not of limitation. In addition, one of ordinary skill in the art will appreciate that various embodiments are possible within the spirit of the present invention.

10: portable electric stick
20 container
30: USB cable
100: body part
110: first body part
112: receiving home
114: coupling groove
116: hollow part
118: taper
150: second body part
152: terminal portion
154: coupling part
156: flange
200: heating unit
210: conduit member
220: conductor member

Claims (6)

A portable heat transfer stick that exchanges heat with a liquid in a container,
A body part including an accommodating groove accommodating an upper end of the container and a terminal part for connecting to an external power source; And
And a heating unit extending from the body unit and generating heat using power supplied from the external power source.
Threads are formed on the inner sidewall of the receiving groove so that the upper opening of the container is accommodated in the receiving groove in a threaded manner with the threads formed on the outer sidewall of the upper opening of the container,
The body portion,
A first body part in which the receiving groove is formed;
A second body part in which the terminal part is formed,
The first body portion has a coupling groove formed on the opposite side of the receiving groove,
The second body portion is provided with a coupling portion inserted into the coupling groove,
The heat generating part is a portable heat transfer stick extending downward from the receiving groove of the first body portion. The method of claim 1,
The heating unit,
A conduit member extending downward from the base surface of the receiving groove;
And a wire member electrically connected to the terminal portion and extending in the conduit member. delete The method of claim 1,
And a second body portion coupled to the first body portion by a screw coupling method using a screw thread formed on an inner sidewall of the coupling groove and a thread thread formed on an outer sidewall of the coupling portion. The method of claim 1,
The first body portion of the portable heat transfer stick further comprises a hollow portion of the hollow structure connecting the inner space of the receiving groove and the inner space of the coupling groove. The method of claim 2,
The first terminal is exposed on the base surface of the coupling groove,
A second terminal protruding downward to make electrical contact with the first terminal is formed on the bottom surface of the coupling part facing the base surface of the coupling groove.
And a current path from the terminal portion to the conductive member through the first terminal and the second terminal.

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