Vacuum heat preservation device capable of regulating and controlling heat dissipation rate

Abstract

The utility model provides a vacuum heat preservation device capable of regulating and controlling the heat dissipation rate, belongs to the technical field of heat preservation devices, and mainly solves the problem that a heat preservation device in the prior art cannot regulate and control the heat dissipation rate. Which comprises a container, a cover and a heat-conducting medium, and is characterized in that the container comprises an inner container and an outer container, the inner container and the outer container are only connected at an upper port, a vacuum heat insulation cavity is arranged between the inner container and the outer container, the heat-conducting medium is arranged in the vacuum heat insulation cavity, and the heat-conducting medium comprises heat-conducting sand or a magnetic attraction switch device. Or the magnetic attraction switch device can be attracted to accelerate the heat dissipation rate. The magnetic attraction switch device comprises a magnetic ring, a magnetic and heat conducting plate and an elastic heat conducting connecting plate, and the magnetic ring arranged on the outer container in a sleeving mode slides up and down to attract or release the magnetic and heat conducting plate so as to adjust the heat dissipation rate.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat preservation devices, and particularly relates to a vacuum heat preservation device with adjustable heat dissipation rate. Background Art

[0002] After a traditional vacuum heat preservation device is filled with hot liquid drinks, the heat preservation time is usually between three and four hours, and some even reach more than six hours, and only the temperature drops by a few degrees. When it is needed to drink, since the temperature of the drinks in the device is relatively high and not suitable for direct drinking, usually the device cover is opened, or the drinks are poured into a non-heat-preserving container to cool naturally before drinking; the existing heat preservation devices cannot adjust the heat dissipation rate of the vacuum heat preservation device. Summary of the Invention

[0003] The purpose of the utility model is to solve the problem that the existing heat preservation device cannot adjust the heat dissipation rate, and provide a vacuum heat preservation device with adjustable heat dissipation rate and its heat dissipation rate adjustment method.

[0004] The technical solution adopted by the utility model to solve the above technical problems is as follows:

[0005] A vacuum heat preservation device with adjustable heat dissipation rate includes a container, a cover and a heat conduction medium. Its characteristics are: the container includes an inner liner and an outer liner, the inner liner and the outer liner are only connected at the upper port, and a vacuum heat insulation cavity is arranged between the inner liner and the outer liner. A heat conduction medium is arranged in the vacuum heat insulation cavity, and the heat conduction medium includes heat conduction sand or a magnetic attraction switch device. When it is necessary to increase the heat dissipation rate, the container can be tilted at a certain angle until it is inverted; or the magnetic attraction switch device can be attracted.

[0006] The magnetic attraction switch device includes a magnetic ring, a magnetic conduction heat conduction plate and an elastic heat conduction connecting plate. One end of the elastic heat conduction connecting plate is fixedly connected to the outer wall of the inner liner near the bottom, and the other end is hinged to the magnetic conduction heat conduction plate. And the magnetic conduction heat conduction plate is spaced from the inner wall of the outer liner by a certain distance. The magnetic conduction heat conduction plate has an arc shape that fits the inner wall of the outer liner. The magnetic ring is sleeved on the outer wall of the outer liner and can slide up and down along the outer wall of the outer liner. When it does not act, it is located on the clamping platform at the lower end of the outer wall of the outer liner; when it is necessary to accelerate heat dissipation, the magnetic ring is pulled up to a position close to the lower edge of the cover at the upper part. At this time, the magnetic conduction heat conduction plate is attracted by the magnetic ring and adheres to the inner wall of the outer liner.

[0007] Compared with the prior art, the utility model has the following beneficial effects:

[0008] The utility model fills heat conduction sand or sets a heat conduction mechanism in the heat insulation cavity between the inner liner and the outer liner, so that the contact area between the inner liner and the outer liner changes, thereby adjusting the heat dissipation rate of the vacuum heat preservation device. Brief Description of the Drawings

[0009] Figure 1 Schematic diagram of the structure with sand as the heat-conducting medium of the present utility model;

[0010] Figure 2 is Figure 1 Schematic diagram of the state where the structure is tilted at a certain angle;

[0011] Figure 3 is Figure 1 Schematic diagram of the state where the structure rotates horizontally;

[0012] Figure 4 is Figure 1 Schematic diagram of the state where the structure is inverted;

[0013] Figure 5 is Figure 1 Schematic diagram of the structure with a magnetic base added to the structure;

[0014] Figure 6 Schematic diagram of the structure with elastic magnetic sheets as the heat-conducting medium of the present utility model;

[0015] Figure 7 is Figure 6 Schematic diagram of the state where the elastic magnetic sheet of the structure shown is attracted by the magnetic ring.

[0016] In the figure: 1 - inner container; 2 - outer container; 3 - vacuum insulation cavity; 4 - lid; 5 - heat-conducting sand; 6 - magnetic pad; 7 - magnetic ring; 8 - magnetically conductive and heat-conductive plate; 9 - elastic heat-conductive connecting plate. Specific embodiments

[0017] As Figure 1 and Figure 6 shown, a vacuum insulation device with adjustable heat dissipation rate includes a container, a lid and a heat-conducting medium, and is characterized in that: the container includes an inner container 1 and an outer container 2, the inner container 1 and the outer container 2 are only connected at the upper port, and a vacuum insulation cavity 3 is provided between the inner container 1 and the outer container 2, and a heat-conducting medium is provided in the vacuum insulation cavity 3, and the heat-conducting medium includes heat-conducting sand 5 or a magnetic attraction switch device. When it is necessary to increase the heat dissipation rate, as Figure 2 , Figure 3 , Figure 4 shown, the container can be tilted at a certain angle until it is inverted; as Figure 6 shown, or the magnetic attraction switch device can be attracted.

[0018] As Figure 6As shown, the magnetic attraction switch device includes a magnetic ring 7, a magnetic and heat conducting plate 8, and an elastic heat conducting connecting plate 9. One end of several elastic heat conducting connecting plates 9 is fixedly connected to a position near the bottom of the outer wall of the inner container 1, and the other end is hinged to the magnetic and heat conducting plate 8. And the magnetic and heat conducting plate 8 is spaced from the inner wall of the outer container 2 by a certain distance. The magnetic and heat conducting plate 8 has an arc shape that fits the inner wall of the outer container 2. The magnetic ring 7 is sleeved on the outer wall of the outer container 2 and can slide up and down along the outer wall of the outer container 2. When not in use, it is located on the clamping platform at the lower end of the outer wall of the outer container 2; when accelerated heat dissipation is required, the magnetic ring 7 is pushed upward to a position close to the lower edge of the cover 4. At this time, as Figure 7 shown, the magnetic and heat conducting plate 8 is attracted by the magnetic ring 7 and adheres to the inner wall of the outer container 2.

[0019] The heat conducting sand 5 is made of a magnetic and heat conducting material, preferably copper-coated iron particles;

[0020] The heat conducting sand 5 is made into a spherical shape and consists of spheres of various diameters;

[0021] Furthermore, as Figure 5 shown, a magnetic pad 6 is provided at the bottom of the container. When accelerated heat dissipation is not required, this magnetic pad 6 can be adsorbed on the bottom of the outer container 2 made of a magnetic material, and the heat conducting sand is adsorbed on the bottom of the container to maintain the vacuum state between the inner container and the outer container.

[0022] Working process and principle:

[0023] When the utility model is in use, as Figure 1 and Figure 6 shown, when hot drinks are added to the container, the temperature is relatively high and not suitable for direct drinking. That is, it is necessary to cool the hot drinks in the cup. The cooling methods include loading the heat conducting sand 5 into the vacuum insulation cavity 3 or setting a magnetic attraction switch device in the vacuum insulation cavity 3;

[0024] When the heat conducting sand 5 is loaded into the vacuum insulation cavity 3, the container is inverted or tilted at a certain angle, and the heat conducting sand 5 flows to the top or side of the container, increasing the heat conducting area between the inner container 1 and the outer container 2, and the hot drinks in the container are cooled acceleratedly. When the temperature drops to an appropriate temperature, the cup body is set upright or the magnetic pad 6 is placed at the bottom of the container, and the heat conducting sand 5 is adsorbed on the bottom of the outer container 2 and does not contact the inner container 1. At this time, the water temperature in the cup enters the heat preservation state again. When the container is in the accelerated heat dissipation state, it can be used as a hand warmer;

[0025] When a magnetic attraction switch device is provided in the vacuum insulation cavity 3, the magnetic ring 7 is pushed to the upper part to make the magnetic and heat conducting plate 8 adhere to the inner wall of the outer container 2, increasing the heat dissipation area.

Claims

1. A vacuum heat preservation device with adjustable heat dissipation rate, comprising a container, a cover and a heat-conducting medium, characterized in that: The container comprises an inner liner (1) and an outer liner (2), the inner liner (1) and the outer liner (2) are connected only at an upper port, and a vacuum insulation chamber (3) is provided between the inner liner (1) and the outer liner (2), a heat-conducting medium is provided in the vacuum insulation chamber (3), and the heat-conducting medium comprises heat-conducting sand (5) or a magnetic suction switch device. When the heat dissipation rate needs to be increased, the container can be tilted to a certain angle until it is inverted; or the magnetic suction switch device can be sucked in; The magnetic suction switch device comprises a magnetic ring (7), a magnetic heat conductive plate (8) and an elastic heat conductive connecting plate (9); one end of the elastic heat conductive connecting plate (9) is fixedly connected to the outer wall of the inner container (1) near the bottom, and the other end is hinged to the magnetic heat conductive plate (8); the magnetic heat conductive plate (8) is spaced a certain distance from the inner wall of the outer container (2); the magnetic heat conductive plate (8) has an arc shape that matches the inner wall of the outer container (2); the magnetic ring (7) is sleeved on the outer wall of the outer container (2) and can slide up and down along the outer wall of the outer container (2); when not in use, it is located on the card table at the lower end of the outer wall of the outer container (2); when it is necessary to accelerate heat dissipation, the magnetic ring (7) is pushed upward to the upper part close to the lower edge of the cover (4); at this time, the magnetic heat conductive plate (8) is attracted by the magnetic ring (7) and adheres to the inner wall of the outer container (2).

2. The vacuum heat preservation device with adjustable heat dissipation rate according to claim 1 is characterized in that: The heat-conducting sand (5) is made of a magnetic and heat-conducting material.

3. The vacuum heat preservation device with adjustable heat dissipation rate according to claim 1 is characterized in that: The heat-conducting sand (5) is made of copper-clad iron particles.

4. The vacuum heat preservation device with adjustable heat dissipation rate according to claim 1 is characterized in that: The heat-conducting sand (5) is made into a spherical shape, and is composed of spheres of various diameters.

5. The vacuum heat preservation device with adjustable heat dissipation rate according to claim 1 is characterized in that: A magnetic pad (6) is arranged at the bottom of the container. When it is not necessary to accelerate heat dissipation, the magnetic pad (6) can be adsorbed on the bottom of the outer container (2) made of magnetic conductive material.

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