Heat transfer device

Abstract

The present invention provides a heat transfer device comprising: a mounting section on which a heat transfer object is placed; an extension section extending from the mounting section toward a heat source; a receiving section connected to the mounting section, in which a support bar and a thermal expansion bar are inserted; and a heat transfer bar that rotates when pressed by the pressurizing action of the pressurizing bar due to the thermal expansion of the thermal expansion bar, thereby separating its contact portion with the extension section.

Description

Technical Field

[0001] The present invention relates to a heat transfer device attached to an attachment target such as a portable gas stove.

Background Art

[0002] Generally, a portable gas range has a small volume and is easy to carry, so it is widely used as a cooking tool outdoors such as camping.

[0003] A portable gas range can be composed of a burner part that generates combustion heat generated by gas ignition at the upper center of the main body, a piezoelectric switch knob provided outside the main body for adjusting the fuel supply amount to the burner part and extinguishing, a gas container mounting part provided on one side of the main body, and a lid for opening and closing the mounting part. A gas container filled with butane gas can be attached to the gas container mounting part before using the portable gas range.

[0004] On the other hand, butane gas is a liquefied petroleum gas mainly composed of butane, and is a petroleum-based gas that liquefies when pressurized to about 5 atmospheres at room temperature. Butane gas is press-fitted into gas containers such as small cylinders and is commercially available as a fuel for home and camping.

[0005] However, in the case of a conventional portable gas range, when the external temperature is lower than the temperature inside the gas container, the gas container is cooled by the heat of vaporization of the liquefied butane gas, and the pressure inside the gas container decreases, resulting in a decrease in the amount of gas ejected and a weakening of the firepower. As a result, there has been a problem that the firepower is significantly reduced or ignition does not occur even though there is still liquefied butane gas remaining inside the gas container.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

[0007] To solve the aforementioned problems, the present invention aims to provide a heat transfer device that can be attached to an object such as a portable gas range and maintains the temperature of a gas container at a temperature suitable for gas ignition. [Means for solving the problem]

[0008] To achieve the aforementioned objectives, the present invention provides a heat transfer device comprising: a mounting portion on which a heat transfer object is placed; an extension portion extending from the mounting portion toward a heat source; a receiving portion connected to the mounting portion and spaced apart from the extension portion, having a first housing portion along its longitudinal direction, in which a support bar and a thermal expansion bar are inserted in layers and assembled, with one end of a pressure bar positioned at the end of the thermal expansion bar; and a heat transfer bar, which is mounted on the extension portion with one end facing the heat source and the other end elastically supported by an elastic member provided on the extension portion, and is connected to a support shaft coupled to the extension portion, and which rotates around the support shaft when pushed by the other end of the pressure bar which rotates when pushed by the thermal expansion of the thermal expansion bar, thereby separating its contact portion from the extension portion.

[0009] The present invention further includes an auxiliary receiving portion which extends in a lateral direction from the end of the receiving portion and has a second receiving portion inside which communicates with the first receiving portion, and which has one end of the pressure bar rotatably connected to a hinge shaft which is coupled to the second receiving portion, wherein the contact portion of the heat transfer bar is the portion opposite to the elastic member, and the elastic member elastically supports the heat transfer bar such that the contact portion contacts the relative contact portion of the extension, and may be compressed by being pressed by the heat transfer bar which rotates around the support shaft.

[0010] Furthermore, if the heat from the heat source transferred to the thermal expansion bar is higher than the set temperature, the end of the thermal expansion bar may thermally expand in the direction of the pressure bar and push against one end of the pressure bar.

[0011] Furthermore, a heat transfer plate may be provided at one end of the heat transfer bar facing the heat source, and the heat transfer plate may be configured in an arc shape that conforms to the circumference of the heat source.

[0012] Furthermore, a receiving projection may be provided on the extension, and the receiving projection may support the other end of the pressure bar.

[0013] Furthermore, the receiving portion may include heat dissipation fins provided on the bottom surface and connecting protrusions provided at the end of the first housing portion.

[0014] Furthermore, the support bar may have a first coupling hole and a second coupling hole on both sides in the longitudinal direction, and the coupling projection may be inserted into the first coupling hole and coupled, while the coupling projection provided on one side in the longitudinal direction of the thermal expansion bar may be inserted into the second coupling hole and coupled.

[0015] Furthermore, insertion grooves may be formed on both sides of the support bar between the first and second coupling holes, and support protrusions provided on both sides of the bottom surface of the thermal expansion bar may be inserted into the insertion grooves.

[0016] Furthermore, the thermal expansion bar may have at least one contact projection on both sides, and the contact projection may contact the inner wall surface of the first housing when the thermal expansion bar is inserted into the first housing.

[0017] Alternatively, the support bar and the thermal expansion bar may be inserted into the first housing of the receiving portion and assembled, and the pressure bar may be inserted into the second housing of the auxiliary receiving portion and assembled, with a lid attached to the upper part of the receiving portion and the auxiliary receiving portion.

[0018] Furthermore, a coupling groove for attaching a magnet may be provided on the bottom surface of the mounting portion.

[0019] Further, the thermal expansion bar may be made of a non-ferrous metal having a larger coefficient of thermal expansion than the support bar.

[0020] Further, a first accommodation groove into which a first ball is inserted is provided on the other bottom surface of the heat transfer bar, and the first ball may slide and move in contact with the extension portion located at the lower portion of the heat transfer bar while being inserted into the first accommodation groove.

[0021] Further, the heat transfer bar is provided with a second accommodation groove into which a second ball is inserted near the support shaft, and the second ball may contact the other end portion of the pressure bar while being inserted into the second accommodation groove.

[0022] Further, the placement portion is located in an accommodation space provided on one side inside the case body of the portable gas range, and the accommodation space may be isolated from the heat source by a partition wall.

[0023] Further, a heat shield cover is coupled to the upper portion of the accommodation space, and the heat shield cover may include: a first cover placed on the upper portion of the accommodation space; and a second cover located above the first cover so as to form a layer at an interval from the first cover and connected to the first cover by a connecting member.

Advantages of the Invention

[0024] The present invention can be mounted on a mounting target such as a portable gas range and keep the temperature of the gas container at a temperature suitable for gas ignition.

Brief Description of the Drawings

[0025] [Figure 1] FIG. shows a state in which a heat transfer device according to a preferred embodiment of the present invention is mounted on a case body of a portable gas range. [Figure 2] FIG. is a plan view showing a state before thermal expansion of a thermal expansion bar according to a preferred embodiment of the present invention. [Figure 3] FIG. shows a placement portion, an extension portion, a receiving portion, and an auxiliary receiving portion according to a preferred embodiment of the present invention. [Figure 4] This figure shows a support bar and a thermal expansion bar according to a preferred embodiment of the present invention. [Figure 5] This figure shows the contact projections of a thermal expansion bar according to a preferred embodiment of the present invention. [Figure 6] This figure shows a state in which a lid is attached to the upper part of the receiving part and the auxiliary receiving part according to a preferred embodiment of the present invention. [Figure 7] This figure shows the coupling state of the support shaft, first ball, and magnet, and the heat dissipation fins of the receiving portion, according to a preferred embodiment of the present invention. [Figure 8] This figure shows a state in which the other end of the pressure bar is in contact with the second ball according to a preferred embodiment of the present invention. [Figure 9] This figure shows a state in which a heat-insulating cover is attached to the upper part of the housing space of the case body according to a preferred embodiment of the present invention. [Figure 10] This figure shows the operation of the pressurizing bar and heat transfer bar during expansion of a thermal expansion bar according to a preferred embodiment of the present invention. [Modes for carrying out the invention]

[0026] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. First, it should be noted that when assigning reference numerals to the components in each drawing, the same component will, as far as possible, have the same reference numeral even when shown in different drawings. In the description of the present invention, if it is determined that a specific description of a related known configuration or function would obscure the gist of the present invention, such detailed description will be omitted. Furthermore, preferred embodiments of the present invention will be described below, but it goes without saying that the technical idea of ​​the present invention is not limited thereto and can be modified and implemented in various ways by those skilled in the art.

[0027] Figure 1 shows a heat transfer device according to a preferred embodiment of the present invention mounted on the case body of a portable gas range; Figure 2 is a plan view showing the state of the thermal expansion bar before thermal expansion according to a preferred embodiment of the present invention; Figure 3 shows the mounting part, extension part, receiving part and auxiliary receiving part according to a preferred embodiment of the present invention; and Figure 4 shows the support bar and thermal expansion bar according to a preferred embodiment of the present invention.

[0028] As shown in Figures 1 to 4, the heat transfer device of the present invention may be attached to a case body 80 such as a portable gas range.

[0029] The present invention may also include a base portion 10, an extension portion 20 extending from the base portion 10, a receiving portion 30 connected to the base portion 10, a support bar 41 and a thermal expansion bar 42 housed inside the receiving portion 30, an auxiliary receiving portion 34 extending from the receiving portion 30 to support the pressure bar 43, and a heat transfer bar 50 whose contact portion 51 with the extension portion 20 separates when pushed by the pressurizing operation of the pressure bar 43.

[0030] One end of the pressure bar 43 may be configured to face the end 424 of the thermal expansion bar 42. The other end of the pressure bar 43 may be configured to face the heat transfer bar 40 at an obtuse angle with the one end.

[0031] The mounting section 10 may be configured to conform to the external shape of the heat transfer object (not shown) so that the heat transfer object (not shown) can be stably mounted. For example, the heat transfer object (not shown) may be a gas container filled with gas.

[0032] The mounting section 10 may be located in a housing space 81 provided on one side of the interior of the case body 80. The housing space 81 may be isolated from the heat source BU by a partition wall 82. The partition wall 82 can prevent heat from the heat source BU from being directly transferred to a heat transfer object (not shown) placed on the mounting section 10.

[0033] A recessed groove 12 may be formed in the mounting section 10 on which the object to be heated (not shown) is placed. For example, when a heat transfer substance such as water is injected into the mounting section 10, the heat transfer substance can flow into the recessed groove 12 as well as the surface of the mounting section 10.

[0034] The heat transfer material on the surface of the mounting section 10 and the recessed groove 12 acts as a medium for transferring heat from the mounting section 10 to the heat transfer target (not shown), maximizing the contact area between the mounting section 10 and the heat transfer target (not shown) to ensure smooth heat transfer from the mounting section 10 to the heat transfer target (not shown).

[0035] The extension 20 may extend from the mounting section 10 in the direction of the heat source BU. For example, the heat source BU may be a burner.

[0036] An elastic member SP and a receiving projection 22 may be provided on the extension 20. For example, the elastic member SP may be a spring.

[0037] The receiving portion 30 may be provided at a distance G from the extension portion 20 and configured to be perpendicular to the extension portion 20. The receiving portion 30 may have a first housing portion 31 along its internal longitudinal direction.

[0038] A heat dissipation fin 32 may be provided on the bottom surface of the receiving portion 30. The heat dissipation fin 32 releases heat and can prevent overheating of the heat transfer target (not shown).

[0039] A connecting projection 312 may be provided at the end portion of the first housing portion 31 of the receiving portion 30.

[0040] A support bar 41 may be inserted into the first housing section 31. A thermal expansion bar 42 may be inserted into the first housing section 31 and assembled on the support bar 41.

[0041] The support bar 41 may have a first connecting hole 411 and a second connecting hole 412 on both sides in the longitudinal direction.

[0042] The coupling projection 312 of the first housing portion 31 may be inserted into and coupled to the first coupling hole 411. The coupling projection 421 provided on one longitudinal side of the thermal expansion bar 42 may be inserted into and coupled to the second coupling hole 412 of the support bar 41.

[0043] Insertion grooves 413 may be formed on both sides of the support bar 41 between the first connecting hole 411 and the second connecting hole 412. Support protrusions 422 provided on both sides of the bottom surface of the thermal expansion bar 42 may be inserted into the insertion grooves 413.

[0044] If the heat from the heat source BU transferred to the thermal expansion bar 42 is higher than the set temperature, the thermal expansion bar 42 can expand in the direction of the pressurizing bar 43 and push against the pressurizing bar 43.

[0045] The thermal expansion bar 42 may be made of a non-ferrous metal with a higher coefficient of thermal expansion than the support bar 41.

[0046] The thermal expansion bar 42 is connected to the upper part of the support bar 41 in the first housing section 31, and does not warp when thermally expanded, and its end 424 expands thermally toward one end of the pressure bar 43, pressing against one end of the pressure bar 43.

[0047] The pressure bar 43 may rotate around the hinge axis H by being pressed by the thermal expansion bar 42.

[0048] The pressure bar 43 may rotate around the hinge axis H so that its other end presses against the heat transfer bar 50.

[0049] One end of the receiving portion 30 may be connected to the mounting portion 10. The auxiliary receiving portion 34 may be formed extending in one direction from the other end of the receiving portion 30. The auxiliary receiving portion 34 may have a second housing portion 341 inside that communicates with the first housing portion 31.

[0050] One end of the pressure bar 43 may be connected to the second housing portion 341 of the auxiliary receiving portion 34 by a hinge shaft H. The pressure bar 43 may rotate around the hinge shaft H by being pushed by the thermal expansion of the thermal expansion bar 42.

[0051] One end of the heat transfer bar 50 may face the heat source BU. The heat transfer bar 50 may be mounted on the extension 20 such that its other end is elastically supported by an elastic member SP provided on the extension 20.

[0052] One end of the heat transfer bar 50 may be connected to the extension 20 by a support shaft SS. Due to the thermal expansion of the thermal expansion bar 42, one end of the pressure bar 43 may be pushed, causing the pressure bar 43 to rotate around the hinge axis H, and as the pressure bar 43 rotates around the hinge axis H, the other end of the pressure bar 43 may push against the heat transfer bar 50.

[0053] The heat transfer bar 50 may rotate around the support shaft SS by being pressed by the pressurizing action of the pressure bar 43. As the heat transfer bar 50 rotates around the support shaft SS, the contact portion 51 of the heat transfer bar 50 that was in contact with the relative contact portion 21 of the extension portion 20 can move away from the relative contact portion 21.

[0054] When the contact portion 51 of the heat transfer bar 50 comes into contact with the relative contact portion 21 of the extension portion 20, the heat from the heat source BU transferred to the heat transfer bar 50 can be transferred via the heat transfer bar 50 and the extension portion 20 to the heat transfer object (not shown) placed on the mounting portion 10 via the mounting portion 10.

[0055] When the contact portion 51 of the heat transfer bar 50 moves away from the relative contact portion 21 of the extension portion 20, the heat from the heat source BU that has been transferred to the heat transfer bar 50 is transferred only to the heat transfer bar 50 and not to the extension portion 20.

[0056] For example, the base unit 10, extension unit 20, support unit 30, auxiliary support unit 34, and heat transfer bar 50 may be made of aluminum alloy. The support base 70 may be made of steel. The thermal expansion bar 42 may be made of zinc alloy.

[0057] The contact portion 51 of the heat transfer bar 50 may be on the opposite side of the elastic member SP. The elastic member SP may elastically support the heat transfer bar 50 such that the contact portion 51 of the heat transfer bar 50 contacts the relative contact portion 21 of the extension 20.

[0058] The heat transfer bar 50 may be pressed by the pressurizing action of the pressure bar 43, and while rotating around the support shaft SS, it may pressurize the elastic member SP. The elastic member SP can be compressed by the pressurizing action of the heat transfer bar 50.

[0059] When the pressure on the heat transfer bar 50 is released, the elastic member SP may stretch back to its original state and elastically support the heat transfer bar 50 so that the contact portion 51 of the heat transfer bar 50 contacts the relative contact portion 21 of the extension portion 20.

[0060] A heat transfer plate 52 may be provided at one end of the heat transfer bar 50 facing the heat source BU. The heat transfer plate 52 may be configured in an arc shape that conforms to the periphery of the heat source BU.

[0061] The heat transfer plate 52 may be formed in a manner that encloses a portion of the heat source BU. The heat transfer plate 52 can prevent the flame from the heat source BU from being directly transferred to the heat transfer object (not shown) placed on the mounting part 10. The heat transfer plate 52 allows the heat from the heat source BU to be smoothly transferred to the heat transfer object (not shown) via the heat transfer bar 50, the extension part 20, and the mounting part 10.

[0062] Figure 5 shows the contact protrusions of a thermal expansion bar according to a preferred embodiment of the present invention.

[0063] As shown in Figure 5, the thermal expansion bar 42 may have at least one contact projection 423 on both sides. The contact projection 423 may contact the inner wall surface 311 of the first housing 31 when the thermal expansion bar 42 is inserted into the first housing 31. The contact projection 423 can minimize the area in which the thermal expansion bar 42 contacts the inner wall surface 311.

[0064] Figure 6 shows a state in which a lid is attached to the upper part of the receiving part and the auxiliary receiving part according to a preferred embodiment of the present invention.

[0065] As shown in Figures 3, 4, and 6, the support bar 41 and thermal expansion bar 42 may be inserted into the first housing portion 31 of the receiving portion 30 and assembled by inserting the pressure bar 43 into the second housing portion 341 of the auxiliary receiving portion 34, and then the lid 60 may be attached to the upper parts of the receiving portion 30 and the auxiliary receiving portion 34.

[0066] The lid 60 may be firmly connected to the upper parts of the receiving portion 30 and the auxiliary receiving portion 34 by connecting members such as bolts. The lid 60 can prevent the support bar 41 and the thermal expansion bar 42 from detaching from the first housing portion 31. The lid 60 can prevent the pressure bar 43 from detaching from the second housing portion 341.

[0067] Figure 7 shows the coupling state of the support shaft, first ball, and magnet, and the heat dissipation fins of the receiving portion, according to a preferred embodiment of the present invention.

[0068] As shown in Figure 7, a coupling groove 11 may be provided on the bottom surface of the mounting section 10. A magnet MA may be coupled to the coupling groove 11. The magnetic force of the magnet MA acts on the heat transfer object (not shown) placed on the mounting section 10, thereby allowing the heat transfer object (not shown) to be stably mounted on the mounting section 10.

[0069] A first receiving groove 53 into which the first ball 71 is inserted may be provided on the bottom surface of the other side of the heat transfer bar 50.

[0070] The first ball 71 may slide while inserted into the first housing groove 53, in contact with the extension 20 located at the lower part of the heat transfer bar 50. The sliding of the first ball 71 allows the rotation of the heat transfer bar 50 to proceed smoothly.

[0071] Since the first ball 71 is spherical, contact between the heat transfer bar 50 and the extension 20 can be minimized.

[0072] Figure 8 shows a state in which the other end of the pressure bar is in contact with the second ball according to a preferred embodiment of the present invention.

[0073] As shown in Figure 8, the heat transfer bar 50 may be provided with a second housing groove 54 near the support shaft SS into which a second ball 72 is inserted. The second ball 72 may be in contact with the other end of the pressure bar 43 while inserted in the second housing groove 54.

[0074] Since the second ball 72 is spherical, contact between the other end of the pressure bar 43 and the heat transfer bar 50 can be minimized.

[0075] Figure 9 shows a state in which a heat-insulating cover is attached to the upper part of the housing space of the case body according to a preferred embodiment of the present invention.

[0076] As shown in Figures 3, 4, and 9, a thermal barrier cover 90 may be attached to the top of the containment space 81. The thermal barrier cover 90 may consist of a multi-layer cover of a first cover 91 and a second cover 92.

[0077] The first cover 91 may be coupled to the upper part of the housing space 81 of the case body 80. The second cover 92 may be positioned on top of the first cover 91, in a layer with a gap between them. The second cover 92 may be connected to the first cover 91 by connecting members 93 such as bolts.

[0078] The heat-insulating cover 90 prevents heat transferred to a large cooking appliance from being directly transferred to an object (not shown) when using a large cooking appliance. This prevents overheating of the object (not shown).

[0079] Next, the operation of the present invention will be described.

[0080] Figure 10 shows the operation of the pressurizing bar and heat transfer bar during expansion of a thermal expansion bar according to a preferred embodiment of the present invention.

[0081] As shown in Figures 2 and 10, with the contact portion 51 of the heat transfer bar 50 in contact with the relative contact portion 21 of the extension portion 20, heat from a heat source BU, such as a burner, can be transferred via the heat transfer bar 50 and the extension portion 20 to the mounting portion 10 on which a heat transfer target (not shown), such as a gas container, is placed.

[0082] The heat transferred to the mounting section 10 can be transferred to the heat transfer object (not shown), such as a gas container, placed on the mounting section 10, and to the receiving section 30. By transferring the heat from the mounting section 10 to the heat transfer object (not shown), the heat transfer object (not shown) can maintain a temperature suitable for gas ignition.

[0083] The heat transferred to the mounting section 10 can be transferred to the thermal expansion bar 42 via the receiving section 30.

[0084] If the heat transferred to the thermal expansion bar 42 is higher than the set temperature, the thermal expansion bar 42 expands from the first housing portion 31 of the receiving portion 30 toward one end of the pressurizing bar 43, and the end 424 of the thermal expansion bar 42 can push against one end of the pressurizing bar 43.

[0085] The pressure bar 43 can rotate around the hinge axis H because one end is pushed by the thermal expansion of the thermal expansion bar 42. As the pressure bar 43 rotates around the hinge axis H, the other end of the pressure bar 43 can push against the second ball 72.

[0086] The pressurizing force of the pressurizing bar 43 is transmitted to the heat transfer bar 50 via the second ball 72, allowing the heat transfer bar 50 to rotate around the support shaft SS.

[0087] As the heat transfer bar 50 rotates around the support shaft SS, the contact portion 51 of the heat transfer bar 50 that was in contact with the relative contact portion 21 of the extension portion 20 can move away from the relative contact portion 21 of the extension portion 20.

[0088] In this case, the elastic member SP can be compressed by being pressed against the heat transfer bar 50 as the heat transfer bar 50 rotates around the support shaft SS.

[0089] By separating the contact portion 51 of the heat transfer bar 50 from the relative contact portion 21 of the extension portion 20, the transfer of heat from the heat source BU to the extension portion 20 via the heat transfer bar 50 can be blocked. As a result, heat from the heat source BU is not transferred to the heat transfer target (not shown), such as a gas container placed on the mounting portion 10, and thus overheating of the heat transfer target (not shown) can be prevented.

[0090] When the heat transferred to the thermal expansion bar 42 is at the set temperature, the thermal expansion bar 42 can contract back to its original state, and the pressurizing force of the pressurizing bar 43 can be eliminated.

[0091] When the pressure from the pressure bar 43 that was pressurizing the heat transfer bar 50 is released, the elastic member SP, which was compressed by the pressure from the heat transfer bar 50, can expand back to its original state.

[0092] As the elastic member SP stretches back to its original state, the elastic force of the elastic member SP causes the heat transfer bar 50 to rotate around the support shaft SS, allowing the contact portion 51 of the heat transfer bar 50 to come into contact with the relative contact portion 21 of the extension portion 20.

[0093] The above description is merely illustrative of the technical concept of the present invention, and any person with ordinary skill in the art to which the present invention pertains can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. Therefore, the embodiments and accompanying drawings disclosed herein are for illustrative purposes only and not to limit the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by such embodiments and accompanying drawings. The scope of protection of the present invention should be interpreted by the following claims, and all technical concepts within an equivalent scope should be interpreted as being included in the scope of the rights of the present invention.

Claims

1. The mounting section on which the object to be heated is placed; An extension extending from the aforementioned mounting portion toward the heat source; A receiving portion which is connected to the aforementioned mounting portion and formed at a distance from the aforementioned extension portion, having a first housing portion along the longitudinal direction of the interior, in which a support bar and a thermal expansion bar are inserted in layers and assembled, and one end of the pressurizing bar is located at the end of the thermal expansion bar; and A heat transfer bar having one end facing the heat source and the other end being elastically supported by an elastic member provided on the extension, and connected to a support shaft coupled to the extension, wherein the other end of the pressurizing bar, which is rotated by the thermal expansion of the heat expansion bar, rotates around the support shaft and separates from the contact portion with the extension; A heat transfer device, including a heat transfer device.

2. An auxiliary receiving portion is provided, which extends in a lateral direction from the end of the receiving portion and has a second housing portion inside that communicates with the first housing portion, wherein one end of the pressure bar is rotatably connected to a hinge shaft that is coupled to the second housing portion; It further includes, The heat transfer device according to claim 1, wherein the contact portion of the heat transfer bar is the portion opposite to the elastic member, the elastic member elastically supports the heat transfer bar so that the contact portion contacts the relative contact portion of the extension, and is compressed by being pressed by the heat transfer bar which rotates around the support axis.

3. The heat transfer device according to claim 1, characterized in that when the heat of the heat source transferred to the thermal expansion bar is higher than the set temperature, the end of the thermal expansion bar expands thermally in the direction of the pressurizing bar, pushing against one end of the pressurizing bar.

4. The heat transfer device according to claim 1, characterized in that a heat transfer plate is provided at one end of the heat transfer bar facing the heat source, and the heat transfer plate is configured in an arc shape that conforms to the heat source.

5. The heat transfer device according to claim 1, characterized in that a receiving projection is provided on the extension, and the receiving projection supports the other end of the pressure bar.

6. The receiving portion is, Heat dissipation fins provided on the bottom surface; and A connecting projection provided at the end of the first housing portion; A heat transfer device according to claim 1, including the following:

7. The aforementioned support bar is The heat transfer device according to claim 6, characterized in that a first coupling hole and a second coupling hole are provided on both sides in the longitudinal direction, the coupling projection is inserted into the first coupling hole and coupled, and a coupling projection provided on one side in the longitudinal direction of the thermal expansion bar is inserted into the second coupling hole and coupled.

8. The heat transfer device according to claim 7, characterized in that insertion grooves are formed on both sides of the support bar between the first coupling hole and the second coupling hole, and support protrusions provided on both sides of the bottom surface of the thermal expansion bar are inserted into the insertion grooves.

9. The heat transfer device according to claim 1, wherein the thermal expansion bar is provided with at least one contact projection on both sides, and the contact projection contacts the inner wall surface of the first housing when the thermal expansion bar is inserted into the first housing.

10. The heat transfer device according to claim 2, characterized in that the support bar and the thermal expansion bar are inserted into the first housing of the receiving portion and assembled, and the pressure bar is inserted into the second housing of the auxiliary receiving portion and assembled, and a lid is attached to the upper part of the receiving portion and the auxiliary receiving portion.

11. The heat transfer device according to claim 1, characterized in that a coupling groove for which a magnet is coupled is provided on the bottom surface of the stationary part.

12. The aforementioned thermal expansion bar is The heat transfer device according to claim 1, characterized in that it is made of a non-ferrous metal with a coefficient of thermal expansion greater than that of the support bar.

13. The heat transfer device according to claim 1, characterized in that a first housing groove into which a first ball is inserted is provided on the other bottom surface of the heat transfer bar, and the first ball is slidable in contact with the extension located at the lower part of the heat transfer bar while inserted in the first housing groove.

14. The heat transfer device according to claim 1, characterized in that the heat transfer bar is provided with a second housing groove near the support shaft into which a second ball is inserted, and the second ball, while inserted in the second housing groove, is in contact with the other end of the pressure bar.

15. The aforementioned mounting section is The heat transfer device according to claim 1, characterized in that it is located in a storage space provided on one side inside the case body of a portable gas range, and the storage space is isolated from the heat source by a partition wall.

16. A heat-insulating cover is attached to the upper part of the aforementioned containment space. The aforementioned heat-insulating cover is A first cover placed on top of the aforementioned storage space; and A second cover located above the first cover, forming a layer with a gap between them, and connected to the first cover by a connecting member; The heat transfer apparatus according to claim 15, including the heat transfer apparatus according to claim 15.

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