Vacuum cup heating disc and vacuum cup

Abstract

The utility model relates to the technical field of vacuum cups, and discloses a vacuum cup heating disc and a vacuum cup. The vacuum cup heating disc comprises a heating disc body and a vacuum shell connected to the heating disc body, a heating surface is formed on the heating disc body, a vacuum cavity is defined between the vacuum shell and the heating surface, the vacuum shell is connected with a conductive part, and the conductive part is connected with the heating surface. A vacuum part is arranged in the vacuum cavity and used for sucking air in the vacuum cavity. By the adoption of the vacuum cup heating disc, heat preservation of the bottom of the vacuum cup can be achieved, the speed of heat dissipation from the bottom of the vacuum cup is effectively reduced, and the heat preservation performance of the vacuum cup is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cups, in particular to a vacuum cup heating plate and a vacuum cup. Background Art

[0002] Vacuum cups are widely used in various scenarios in daily life. They can maintain the temperature of the liquid inside for a long time, meeting people's drinking needs in various environments. Existing vacuum cups usually have a double-layer structure with an inner liner and an outer liner. A vacuum layer is set between the inner and outer liner to isolate the heat transfer inside and outside the vacuum cup, so that the water temperature inside the vacuum cup can remain relatively stable.

[0003] However, since the heating plate at the bottom of the inner tank needs to be connected to a power source, the heating plate part cannot be insulated, causing the heat at the bottom of the thermos cup to dissipate faster than other parts of the thermos cup, affecting the insulation performance of the thermos cup. Utility Model Content

[0004] In order to solve the defects of the prior art, the utility model provides a vacuum cup heating plate and a vacuum cup, which can keep the bottom of the vacuum cup warm, effectively reduce the heat loss rate from the bottom of the vacuum cup, and improve the heat preservation performance of the vacuum cup.

[0005] In order to solve the above technical problems, the utility model provides a vacuum cup heating plate, comprising a heating plate body and a vacuum shell connected to the heating plate body, wherein the heating plate body is formed with a heating surface, and a vacuum cavity is enclosed between the vacuum shell and the heating surface, and the vacuum shell is connected to a conductive member, and the conductive member is connected to the heating surface;

[0006] A vacuum component is provided in the vacuum chamber, and the vacuum component is used to absorb the air in the vacuum chamber.

[0007] Wherein, the vacuum component is a getter, and the getter is fixedly connected to the enclosing surface of the vacuum shell, wherein the enclosing surface faces the heating surface.

[0008] The side wall of the heating plate forms a first edge, the side wall of the vacuum shell forms a second edge, one of the first edge and the second edge forms a connecting groove, the other of the first edge and the second edge is inserted into the connecting groove, and the first edge is welded to the second edge.

[0009] Among them, also include:

[0010] The connecting shell is covered on the vacuum shell, and the edge of the connecting shell is welded to the edge of the vacuum shell, and the side wall of the connecting shell is formed with an exhaust hole.

[0011] The heating surface is formed with a conductive pattern, the vacuum shell is formed with a first connection hole, the conductive member is a conductive electrode, one end of the conductive electrode is passed through the first connection hole, one end of the conductive electrode is connected to the conductive pattern, and the other end of the conductive electrode protrudes from a side of the vacuum shell away from the heating surface;

[0012] The conductive electrode is sealed and connected to the first connection hole.

[0013] The first connection hole is filled with a sealing filler, and the conductive electrode is sealed and connected to the first connection hole through the sealing filler.

[0014] The heating surface is provided with a conductive ring, the conductive ring is connected to the conductive pattern, the conductive ring is formed with a connecting protrusion, and one end of the conductive electrode is connected to the connecting protrusion.

[0015] The conductive ring is connected to the heating surface via a fastener, the fastener forms a limiting hole, the limiting hole is located above the connecting protrusion, one end of the conductive electrode is passed through the limiting hole and connected to the connecting protrusion.

[0016] Among them, also include:

[0017] A temperature detecting member, wherein the vacuum housing is formed with a second connecting hole, the heating surface is formed with a mounting hole, the temperature detecting member is passed through the second connecting hole, and an end portion of the temperature detecting member is inserted into the mounting hole;

[0018] The housing of the temperature detecting member is sealed to the wall of the second connecting hole.

[0019] Correspondingly, the utility model also provides a vacuum cup, comprising an outer liner, an inner liner and a vacuum cup heating plate as described above, wherein the heating plate body is connected to the bottom of the inner liner, and the outer liner is sleeved on the inner liner and the heating plate body.

[0020] The implementation of this utility model has the following beneficial effects:

[0021] The vacuum cup heating plate provided in this embodiment draws air from the vacuum chamber through the vacuum element, maintaining a vacuum environment within the chamber and reducing the amount of heat-conducting gas within the chamber, thereby achieving vacuuming and heat preservation on one side of the heating surface of the heating plate. Furthermore, because the conductive element connected to the vacuum shell is connected to the heating surface of the heating plate, the heating plate is able to conduct heat, ensuring that the heating plate's ability to heat liquids is not affected by evacuating the vacuum chamber. Furthermore, when the heating plate is assembled within the vacuum cup, it can insulate the bottom of the vacuum cup, effectively reducing the rate of heat loss from the bottom of the vacuum cup and improving the heat preservation performance of the vacuum cup. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the vacuum cup heating plate in the utility model;

[0023] Figure 2 This is a schematic diagram of the explosion structure of the vacuum cup heating plate in the utility model;

[0024] Figure 3 This is a schematic diagram of the top view of the vacuum cup heating plate in the utility model;

[0025] Figure 4 yes Figure 3 A schematic cross-sectional view of the structure taken along section line AA;

[0026] Figure 5 yes Figure 3 A schematic cross-sectional view of the structure taken along section line BB;

[0027] Figure 6 yes Figure 2 Schematic diagram of the enlarged structure at point C in the middle. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention will be further described in detail below with reference to the accompanying drawings. It is hereby stated that any directional terms such as "up," "down," "left," "right," "front," "back," "inside," and "outside" that appear or will appear in this document are based solely on the accompanying drawings and are not intended to limit the present invention.

[0029] The vacuum cup heating plate provided by the utility model can vacuum and insulate the heating surface 11 of the heating plate, thereby insulating the bottom of the vacuum cup, effectively reducing the heat loss rate from the bottom of the vacuum cup and improving the insulation performance of the vacuum cup.

[0030] In a specific embodiment of the present invention, Figures 1 to 6 As shown, the vacuum cup heating plate includes a heating plate body 1 and a vacuum shell 2 connected to the heating plate body 1. The heating plate body 1 is formed with a heating surface 11. The vacuum shell 2 and the heating surface 11 enclose a vacuum cavity 12. The vacuum shell 2 is connected to a conductive member 21, which is connected to the heating surface 11. A vacuum member 22 is provided in the vacuum cavity 12 for sucking air from the vacuum cavity 12.

[0031] According to the vacuum cup heating plate provided in this embodiment, the vacuum member 22 draws air from the vacuum chamber 12, allowing the vacuum chamber 12 to maintain a vacuum environment, reducing the heat-conducting gas inside the vacuum chamber 12, and achieving vacuuming and heat preservation on one side of the heating surface 11 of the heating plate body 1. Furthermore, because the conductive member 21 connected to the vacuum shell 2 is connected to the heating surface 11 of the heating plate body 1, the heating plate body 1 can conduct heat, thereby ensuring that the vacuum chamber 12 is evacuated without affecting the heating function of the heating plate body 1. Furthermore, when the heating plate body 1 is assembled in the vacuum cup, the heating plate body 1 can insulate the bottom of the vacuum cup, effectively reducing the rate of heat loss from the bottom of the vacuum cup and improving the heat preservation performance of the vacuum cup.

[0032] It should be noted that when the heating plate 1 is mounted on the bottom of the vacuum cup, one side of the heating plate 1 forms a water storage chamber with the inner cavity of the vacuum cup. The heating surface 11 of the heating plate 1 is the side of the heating plate 1 facing away from the water storage chamber. A heating wire or other heating element may be disposed on the heating surface 11. A conductive member 21 is connected to the heating element. Electrical energy is input into the heating element through the conductive member 21, and the heating element generates heat to heat the liquid in the water storage chamber of the vacuum cup.

[0033] Specifically, in order to ensure that the vacuum member 22 can absorb the air in the vacuum chamber 12 without affecting the heating performance of the heating plate 1, Figure 2 and Figure 5 As shown, the vacuum member 22 is a getter, which is fixedly connected to the enclosing surface 23 of the vacuum shell 2, wherein the enclosing surface 23 faces the heating surface 11. Utilizing the getter's ability to adsorb and fix gas, after the getter is activated and the vacuum chamber 12 is evacuated, the getter continuously adsorbs and fixes gas molecules within the vacuum chamber 12, thereby maintaining the vacuum state within the vacuum chamber 12 and improving the heat preservation performance of the vacuum cup heating plate.

[0034] In addition, due to the performance difference between the getter and the heating element in the heating plate 1, the getter will not affect the heating element when maintaining a vacuum environment, further ensuring that the heating plate 1 can achieve vacuum insulation performance while conducting heat.

[0035] It should be noted that before the vacuum shell 2 is connected to the heating plate 1, Figure 5 As shown, the getter can be riveted to the enclosing surface 23 of the vacuum shell 2 and activated before evacuating the heating plate 1. The getter can be a non-evaporable getter such as zirconium vanadium iron or an evaporable getter such as barium aluminum nickel according to actual conditions.

[0036] In this embodiment, in order to ensure that the vacuum chamber 12 can maintain a vacuum state, the vacuum shell 2 and the heating plate 1 are preferably sealed. Figure 2 、 Figure 4 and Figure 5 As shown, the side wall of the heating plate body 1 forms a first edge 13, the side wall of the vacuum shell 2 forms a second edge 24, one of the first edge 13 and the second edge 24 forms a connecting groove 25, the other of the first edge 13 and the second edge 24 is inserted into the connecting groove 25, and the first edge 13 is welded to the second edge 24 to form a connecting weld at the connecting position of the connecting groove 25 and the edge, and the connecting weld between the heating plate body 1 and the vacuum shell 2 is used to ensure a sealed connection between the vacuum shell 2 and the heating plate body 1.

[0037] Among them, the connecting groove 25 is preferably formed on the second edge 24 of the vacuum shell 2, and the second edge 24 is plug-connected to the first edge 13 through the connecting groove 25 to avoid changing the original structure of the heating plate body 1, thereby ensuring the fixing effect between the vacuum shell 2 and the heating plate body 1 with the original structure, and during welding, the insertion seam between the first edge 13 and the connecting groove 25 can be welded to ensure the quality of the weld.

[0038] It should be noted that laser welding can be used to weld the connection position of the first edge 13 and the second edge 24. Laser welding has high welding quality and good welding efficiency, and can form high-quality and high-sealing welds, further ensuring the sealed connection between the vacuum shell 2 and the heating plate body 1.

[0039] In this embodiment, if Figure 2 、 Figure 4 and Figure 5 As shown, the vacuum cup heating plate also includes a connecting shell 3, which is used to be sealed and connected to the outer shell of the vacuum shell 2. The connecting shell 3 is covered on the vacuum shell 2, and the edge of the connecting shell 3 is welded to the edge of the vacuum shell 2, and the side wall of the connecting shell 3 is formed with an exhaust hole 31. Then, when the vacuum cup heating plate is assembled on the vacuum cup outer shell, the side surface of the connecting shell 3, the outer wall surface of the vacuum shell 2 and the inner wall surface of the vacuum cup outer shell form an enclosed cavity, and the inner cavity of the vacuum cup is evacuated, the exhaust hole 31 can be used to evacuate the enclosed cavity inside the connecting shell 3, thereby performing vacuum insulation on the outer wall surface of the vacuum shell 2, realizing secondary vacuum insulation of the vacuum cup heating plate, and further improving the insulation performance of the vacuum cup heating plate.

[0040] In this embodiment, in order to ensure that the heating plate 1 can conduct heat to heat the liquid inside the vacuum cup, Figure 2 、 Figure 4 and Figure 5 As shown, the heating surface 11 is formed with a conductive pattern 111, the vacuum shell 2 is formed with a first connection hole 26, the conductive member 21 is a conductive electrode, one end of the conductive electrode is passed through the first connection hole 26, and one end of the conductive electrode is connected to the conductive pattern 111, and the other end of the conductive electrode protrudes outward on the side of the vacuum shell 2 away from the heating surface 11.

[0041] It is understood that the conductive lines 111 on the heating surface 11 are a conductive layer formed on the heating surface 11 through processes such as chemical etching or mechanical removal, and can be formed into a specific shape on the heating surface 11 according to the actual designed current path. When the heating plate 1 needs to generate heat to heat the liquid inside the vacuum cup, the other end of the conductive electrode can be connected to an electrical source, and current can be passed through the conductive lines 111 on the heating surface 11 through the conductive electrode, causing the heating surface 11 of the heating plate 1 to begin generating heat, and heat the liquid inside the vacuum cup through heat conduction and heat radiation.

[0042] It should be noted that the heating element on the heating surface 11 can be an electric heating film (not shown in the figure). The electric heating film is applied to the heating surface 11 and has conductive patterns 111 formed on the electric heating film. When the conductive patterns 111 are applied to the electric heating film, the electric heating film radiates heat and transfers heat to the heating plate 1 and the interior of the vacuum cup. Furthermore, the electric heating performance and material properties of the electric heating film are not affected by the getter, thereby ensuring the heating performance of the heating plate 1 when the vacuum chamber 12 is maintained in a vacuum state.

[0043] Of course, the heating element of the heating surface 11 can also be an electric heating tube or other heating elements, which can be selected and set according to actual conditions.

[0044] It should also be noted here that the heating disk body 1 is connected to two conductive electrodes, one of which serves as the positive electrode of the heating disk and the other serves as the negative electrode of the heating disk, to ensure that the conductive lines 111 of the heating surface 11 can form a current loop with the external power supply through the two conductive electrodes.

[0045] In this embodiment, when the conductive electrode passes through the first connecting hole 26 and enters the vacuum chamber 12, in order to ensure that the getter can maintain the vacuum environment of the vacuum chamber 12, the conductive electrode and the first connecting hole 26 are sealed to prevent the vacuum chamber 12 from communicating with the external environment through the first connecting hole 26 and destroying the vacuum environment in the vacuum chamber 12.

[0046] In order to achieve a sealed connection between the conductive electrode and the first connecting hole 26, as shown in FIG. Figure 2 and Figure 4 As shown, the first connection hole 26 is filled with a sealing filler 261 , and the conductive electrode is sealed and connected to the first connection hole 26 through the sealing filler 261 to ensure the sealing of the vacuum chamber 12 and ensure that the vacuum chamber 12 can maintain a vacuum environment under the action of the getter.

[0047] Specifically, the sealing filler 261 is preferably made of rubber material. By utilizing the elasticity and stability of the rubber material, when the vacuum chamber 12 is evacuated, the sealing filler 261 made of rubber material can be sealed and filled in the first connecting hole 26 under the action of internal and external pressures, and maintain the shape of the sealing filler 261 under internal and external pressures, while adapting to the slight deformation between the first connecting hole 26 and the conductive electrode, thereby ensuring the sealing effect between the first connecting hole 26 and the conductive electrode.

[0048] Among them, such as Figure 2 and Figure 6 As shown, the heating surface 11 is provided with a conductive ring 14, which is connected to the conductive pattern 111. The conductive ring 14 is formed with a connecting protrusion 141, and one end of the conductive electrode is connected to the connecting protrusion 141. The conductive performance of the conductive ring 14 is utilized to reduce the resistance and energy loss at the connection position between the conductive electrode and the conductive pattern 111, so as to improve the conductive efficiency of the heating surface 11; at the same time, the conductive ring 14 is used to optimize the distribution between the conductive electrode and the heating surface 11, ensuring uniform distribution of current at the connection position, thereby avoiding current concentration at the connection between the heating surface 11 and the conductive electrode or local overheating at the connection, which may cause damage to the connection.

[0049] It should be noted that if Figure 6 As shown, a gap 142 is formed between the connecting protrusion 141 and the heating surface 11. The gap 142 is used to dissipate heat between the conductive ring 14 and the heating surface 11, avoiding heat accumulation at the connection and further avoiding local overheating that may cause damage to the connection.

[0050] Furthermore, the conductive ring 14 is connected to the heating surface 11 via a fastener 15 to ensure the fixing effect of the conductive ring 14. The fastener 15 forms a limiting hole 151, which is located above the connecting protrusion 141. One end of the conductive electrode is inserted into the limiting hole 151 and connected to the connecting protrusion 141. The limiting hole 151 of the fastener 15 provides a stable limiting point for the conductive electrode, reducing the risk of poor contact or disconnection between the conductive electrode and the conductive ring 14 due to vibration.

[0051] Specifically, the fastener 15 can be a structure such as a nut. The shape of the fastener 15 facing the conductive ring 14 is adapted to the shape of the conductive ring 14. When the fastener 15 presses the conductive ring 14 against the heating surface 11, the connecting protrusion 141 and the contact position of the fastener 15 form an elastic crimping, further enhancing the pressing force of the fastener 15 on the conductive ring 14 and enhancing the fixing effect of the conductive ring 14.

[0052] In this embodiment, if Figures 2 to 5As shown, the vacuum cup heating plate further includes a temperature detecting member 4. The vacuum housing 2 is formed with a second connecting hole 27, and the heating surface 11 is formed with a mounting hole 16. The temperature detecting member 4 is passed through the second connecting hole 27, and the end of the temperature detecting member 4 is inserted into the mounting hole 16. The temperature detecting member 4 is used to monitor the temperature of the heating surface 11 in real time, so as to determine whether the temperature of the heating surface 11 is within a set temperature range. The conductive electrode is controlled to be on and off according to the real-time monitoring data of the temperature detecting member 4, thereby achieving precise control of the temperature of the heating surface 11.

[0053] The shell of the temperature detection component 4 is sealed and connected to the wall of the second connecting hole 27. Specifically, the shell of the temperature detection component 4 is welded to the wall of the second connecting hole 27. The weld between the shell of the temperature detection component 4 and the wall of the second connecting hole 27 is used to ensure that the vacuum chamber 12 will not be connected to the external environment through the second connecting hole 27, thereby ensuring that a vacuum environment can be maintained in the vacuum chamber 12.

[0054] Preferably, the temperature detection element 4 is a negative temperature coefficient thermistor (NTC).

[0055] Accordingly, the present invention further provides a vacuum cup, comprising an outer liner, an inner liner, and the vacuum cup heating plate described in any one of the above embodiments, wherein the heating plate body 1 is connected to the bottom of the inner liner, and the outer liner is sleeved over the inner liner and the heating plate body 1. The vacuum cup has all the beneficial effects of the vacuum cup heating plate, which will not be described in detail again.

[0056] It should also be noted that the edge of the heating plate body 1 facing away from the heating surface 11 is welded to the bottom edge of the inner pot, thereby forming a water storage chamber inside the vacuum cup. The top of the outer pot is welded to the top of the inner pot, and the bottom of the outer pot is welded to the lower edge of the connecting shell 3 in the vacuum cup heating plate.

[0057] The inner enclosing surface 23 of the vacuum shell 2 and the heating surface 11 of the heating disk body 1 enclose a vacuum cavity inside the vacuum shell 2 to perform a primary vacuuming and heat preservation on the heating disk body 1; the bottom wall surface of the outer shell, the inner wall surface of the connecting shell 3 and the outer top wall surface of the vacuum shell 2 enclose a vacuum cavity outside the vacuum shell 2 to perform a secondary vacuuming and heat preservation on the heating disk body 1; the inner wall surface of the outer shell, the outer wall surface of the inner shell, the outer wall surface of the heating disk body 1, the outer wall surface of the vacuum shell 2 and the outer wall surface of the connecting shell 3 enclose a vacuum cavity of the vacuum cup to perform a secondary vacuuming and heat preservation on the vacuum cup.

[0058] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. A vacuum cup heating plate, characterized in that: The invention comprises a heating disk body (1) and a vacuum shell (2) connected to the heating disk body (1), wherein the heating disk body (1) is formed with a heating surface (11), a vacuum cavity (12) is formed between the vacuum shell (2) and the heating surface (11), and the vacuum shell (2) is connected to a conductive member (21), and the conductive member (21) is connected to the heating surface (11); A vacuum component (22) is provided in the vacuum chamber (12), and the vacuum component (22) is used to absorb air from the vacuum chamber (12).

2. The vacuum cup heating plate according to claim 1, characterized in that: The vacuum member (22) is a getter, and the getter is fixedly connected to the enclosing surface (23) of the vacuum shell (2), wherein the enclosing surface (23) faces the heating surface (11).

3. The vacuum cup heating plate according to claim 1, characterized in that: The side wall of the heating plate (1) forms a first edge (13), the side wall of the vacuum shell (2) forms a second edge (24), one of the first edge (13) and the second edge (24) forms a connecting groove (25), the other of the first edge (13) and the second edge (24) is inserted into the connecting groove (25), and the first edge (13) and the second edge (24) are welded together.

4. The vacuum cup heating plate according to claim 1, characterized in that: Also includes: A connecting shell (3) is provided on the vacuum shell (2), and the edge of the connecting shell (3) is welded to the edge of the vacuum shell (2), and a side wall of the connecting shell (3) is formed with an exhaust hole (31).

5. The vacuum cup heating plate according to claim 1, characterized in that: The heating surface (11) is formed with a conductive pattern (111), the vacuum shell (2) is formed with a first connection hole (26), the conductive member (21) is a conductive electrode, one end of the conductive electrode is passed through the first connection hole (26), one end of the conductive electrode is connected to the conductive pattern (111), and the other end of the conductive electrode protrudes from a side of the vacuum shell (2) away from the heating surface (11); The conductive electrode is sealedly connected to the first connecting hole (26).

6. The vacuum cup heating plate according to claim 5, characterized in that: The first connection hole (26) is filled with a sealing filler (261), and the conductive electrode is sealed and connected to the first connection hole (26) through the sealing filler (261).

7. The vacuum cup heating plate according to claim 5, characterized in that: The heating surface (11) is provided with a conductive ring (14), the conductive ring (14) is connected to the conductive pattern (111), the conductive ring (14) is formed with a connecting protrusion (141), and one end of the conductive electrode is connected to the connecting protrusion (141).

8. The vacuum cup heating plate according to claim 7, characterized in that: The conductive ring (14) is connected to the heating surface (11) via a fastener (15); the fastener (15) forms a limiting hole (151); the limiting hole (151) is located above the connecting protrusion (141); one end of the conductive electrode is passed through the limiting hole (151) and connected to the connecting protrusion (141).

9. The vacuum cup heating plate according to claim 1, characterized in that: Also includes: A temperature detecting member (4), the vacuum shell (2) is formed with a second connecting hole (27), the heating surface (11) is formed with a mounting hole (16), the temperature detecting member (4) is passed through the second connecting hole (27), and an end portion of the temperature detecting member (4) is inserted into the mounting hole (16); The housing of the temperature detecting element (4) is sealed to the wall surface of the second connecting hole (27).

10. A vacuum cup, characterized in that: It comprises an outer liner, an inner liner and the vacuum cup heating plate according to any one of claims 1 to 9, wherein the heating plate body (1) is connected to the bottom of the inner liner, and the outer liner is sleeved on the inner liner and the heating plate body (1).

Images