Electric heating cup with three-layer composite titanium inner container

Abstract

The utility model provides an electric heating cup with a three-layer composite titanium inner container, which comprises a cup cover assembly, a non-titanium metal outer container, the titanium inner container, a heating plate assembly and a base shell, the cup cover assembly is screwed at the top opening of the non-titanium metal outer container, the titanium inner container is accommodated in the non-titanium metal outer container, and the heating plate assembly is screwed at the top opening of the non-titanium metal outer container. The base shell is fixed to an opening in the bottom of the non-titanium metal outer container, and the heating disc assembly is fixed to the bottom of the titanium inner container and then contained in a closed containing cavity defined by the base shell, the titanium inner container and the non-titanium metal outer container. The non-titanium metal outer container is a double-layer non-titanium easily-welded metal outer container, the tops of the double-layer outer container are mutually welded, the bottoms of the double-layer outer container are mutually welded, so that the double-layer non-titanium easily-welded metal outer container is provided with a middle vacuum heat insulation layer, and a top opening of the titanium inner container is welded with a top opening of the double-layer non-titanium easily-welded metal outer container. By adopting the scheme, the welding difficulty and the thickness of the titanium liner are reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric heating cup, especially relates to a three -layer composite titanium inner container's electric heating cup. BACKGROUND

[0002] Titanium inner container electric heating cup refers to the cup that is made into inner container by titanium metal and has electric heating function. In prior art, the titanium electric heating cup is provided in Chinese utility model patent with application No. 202220621048.4, wherein the titanium electric heating cup comprises: cup cover assembly, titanium shell, titanium inner container, vacuum bottom, heating disc assembly, bottom cover, cup cover assembly is connected with titanium shell by screw thread, and its characterized in that: titanium shell and bottom cover are connected through screw or buckle, titanium inner container is located in titanium shell, the mouth part of titanium inner container and the mouth part of titanium shell are connected by welding, the upper portion of vacuum bottom and the bottom of titanium inner container are connected by welding, the lower portion of vacuum bottom and the bottom of titanium shell are connected, the vacuum heat insulation layer is formed between titanium shell and the titanium inner container, the bottom cover is arranged on the bottom of titanium shell, the bottom cover, vacuum bottom and titanium inner container form a closed containing cavity, and the heating disc assembly is located in the containing cavity.

[0003] However, the mouth part of titanium inner container and the mouth part of titanium shell are connected by welding, the upper portion of vacuum bottom and the bottom of titanium inner container are connected by welding, and the lower portion of vacuum bottom and the bottom of titanium shell are connected by welding, so that the vacuum heat insulation layer is formed between titanium shell and the titanium inner container, since the metal stability of titanium metal is relatively high, and the welding with any metal is relatively difficult, in order to guarantee the vacuum, the above welding needs harsh conditions to be completed, the welding difficulty and production cost are improved;And the vacuum is extracted between titanium inner container and titanium shell, becomes vacuum cup, since the vacuum needs to be extracted, so titanium inner container and titanium shell need to meet certain thickness, the consumption of titanium is relatively large, furthermore, titanium is a kind of rare metal, the shell and inner container become thick, on the one hand, lead to the cost increase of manufacturing electric heating cup, on the other hand, lead to the waste of titanium resources. UTILITY MODEL CONTENTS

[0004] The utility model discloses a main purpose is to provide a kind of three-layer composite titanium inner container's electric heating cup, wherein, non-titanium metal outer shell is double-layer non-titanium easy welding metal outer shell, the top of double-layer outer shell is mutually welded, the bottom of double-layer outer shell is mutually welded, so that double-layer non-titanium easy welding metal outer shell has middle vacuum heat insulation layer, the top opening of titanium inner container is welded with the top opening of double-layer non-titanium easy welding metal outer shell;Using above-mentioned scheme, since the top of double-layer non-titanium easy welding metal outer shell is welded itself and the bottom of double-layer is welded itself to form vacuum heat insulation layer between double-layer, welding is relatively simple, success rate is higher, can play the role of heat preservation and heat insulation, so the top opening of titanium inner container only needs to be sealed and welded with the opening of the top of double-layer non-titanium easy welding metal outer shell, and strict vacuum degree between double-layer non-titanium easy welding metal outer shell and titanium inner container does not need to be guaranteed, since welding does not need harsh condition, thereby reducing the degree of difficulty of welding, preliminary reduce production cost;And, titanium inner container and double-layer non-titanium easy welding metal outer shell do not need to be vacuumized, so titanium inner container does not need to satisfy certain thickness, reduce the consumption of titanium while improving heat transfer efficiency, further reduce production cost, be favorable to the promotion of three-layer composite titanium inner container's electric heating cup.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A three-layer composite titanium inner container's electric heating cup, it includes: cup cover assembly, non-titanium metal outer shell, titanium inner container, heating disc assembly and base shell, the cup cover assembly is screwed in the top opening of the non-titanium metal outer shell, the titanium inner container is contained in the non-titanium metal outer shell, the base shell is fixed in the bottom opening of the non-titanium metal outer shell, the heating disc assembly is fixed in the bottom of the titanium inner container and is contained in the closed containment cavity formed by the base shell, the titanium inner container and the non-titanium metal outer shell;Wherein, the non-titanium metal outer shell is double-layer non-titanium easy welding metal outer shell, the top of double-layer outer shell is mutually welded, the bottom of double-layer outer shell is mutually welded, so that the double-layer non-titanium easy welding metal outer shell has middle vacuum heat insulation layer, the top opening of the titanium inner container is welded with the top opening of the double-layer non-titanium easy welding metal outer shell.

[0007] As a preferred scheme of the electric heating cup with the three-layer composite titanium inner liner, the cup cover assembly comprises a cup cover shell, a cup cover inner shell, a cup cover body clamped between the cup cover shell and the cup cover inner shell, and a fixing support fixed to the cup cover shell; a bottom surface of the fixing support is provided with a first fixing column, the first fixing column extends into the cup cover body after penetrating through the cup cover shell, and a fixing bolt extends into the first fixing column after penetrating through the cup cover inner shell and the cup cover body in sequence and is fixed.

[0008] As a preferred scheme of the electric heating cup with the three-layer composite titanium inner liner, the cup cover assembly further comprises a sealing ring; the cup cover inner shell is provided with a first exhaust hole, the cup cover body is provided with a second exhaust hole, the cup cover shell is provided with a third exhaust hole, and the first exhaust hole, the second exhaust hole and the third exhaust hole are communicated; a top portion of the cup cover body is provided with a sealing groove around a position of the second exhaust hole, the sealing ring is embedded in the sealing groove, and the cup cover body abuts the sealing ring against an inner side of the cup cover shell.

[0009] As a preferred scheme of the electric heating cup with the three-layer composite titanium inner liner, the cup cover assembly further comprises a sealing washer; the cup cover inner shell is provided with a washer groove, the sealing washer is embedded in the washer groove, and the cup cover inner shell abuts the sealing washer against a top opening of the double-layer non-titanium weldable metal outer liner.

[0010] As a preferred scheme of the electric heating cup with the three-layer composite titanium inner liner, the double-layer material of the double-layer non-titanium weldable metal outer liner is one or two of stainless steel, copper alloy, iron alloy and aluminum alloy.

[0011] As a preferred scheme of the electric heating cup with the three-layer composite titanium inner liner, the heating disc assembly comprises a heating disc body, a control circuit board and a mounting support; the heating disc body is fixed to a bottom portion of the titanium inner liner, the mounting support is fixed to a bottom portion of the heating disc body, and the control circuit board is fixed to a bottom portion of the mounting support.

[0012] As a preferred scheme of the electric heating cup with the three-layer composite titanium inner liner, the heating disc body extends towards the mounting support to form a second fixing column, a fixing bolt extends into the second fixing column after penetrating through the mounting support and is fixed; the mounting support extends towards the control circuit board to form a third fixing column, a fixing screw extends into the third fixing column after penetrating through the control circuit board and is fixed; the mounting support is provided with a wire through hole, and a power line connected out of the control circuit board penetrates through the wire through hole and is electrically connected with the heating disc body.

[0013] As a preferred solution for the electric heating cup with a three-layer composite titanium inner liner, the mounting bracket extends toward the wiring position of the heating plate body to form an isolation convex plate, and the isolation convex plate is used to separate the wiring position of the heating plate body from the double-layer non-titanium easy-to-weld metal outer liner.

[0014] As a preferred solution for the electric heating cup with a three-layer composite titanium liner, a power interface is provided on one side of the control circuit board, and the base shell is provided with an interface opening, and the power interface is embedded in the interface opening.

[0015] As a preferred solution for the electric heating cup with a three-layer composite titanium liner, a switch button is provided on the other side of the control circuit board, the base shell is provided with a button opening, and the switch button is embedded in the button opening.

[0016] The beneficial effects of the utility model are:

[0017] In the utility model, a three-layer composite electric heating cup with a titanium liner is provided, comprising: a cup cover assembly, a non-titanium easy-to-weld metal outer liner, a titanium liner, a heating plate assembly, and a base shell. The cup cover assembly is screwed to the top opening of the non-titanium easy-to-weld metal outer liner, the titanium liner is accommodated in the non-titanium easy-to-weld metal outer liner, the base shell is fixed to the bottom opening of the non-titanium easy-to-weld metal outer liner, and the heating plate assembly is fixed to the bottom of the titanium liner and accommodated in a closed accommodation cavity formed by the base shell, the titanium liner and the non-titanium easy-to-weld metal outer liner; wherein the non-titanium metal outer liner is a double-layer non-titanium easy-to-weld metal outer liner, the tops of the double-layer outer liner are welded to each other, and the bottoms of the double-layer outer liner are welded to each other, so that the double-layer non-titanium easy-to-weld metal outer liner has a medium vacuum insulation layer, and the top opening of the titanium liner is welded to the top opening of the double-layer non-titanium easy-to-weld metal outer liner; using In the above scheme, since the top of the double layer of the double layer of the double-layer non-titanium easy-to-weld metal outer liner is welded to itself and the bottom of the double layer is welded to itself, a vacuum insulation layer is formed between the double layers. The welding is relatively simple and the success rate is high, which can play a role in heat preservation and insulation. Therefore, the top opening of the titanium inner liner only needs to be sealed and welded to the opening of the top of the double-layer non-titanium easy-to-weld metal outer liner, and there is no need to ensure a strict vacuum degree between the double-layer non-titanium easy-to-weld metal outer liner and the titanium inner liner. Since welding does not require harsh conditions, the difficulty of welding is reduced, and the production cost is initially reduced. Moreover, there is no need to evacuate between the titanium inner liner and the double-layer non-titanium easy-to-weld metal outer liner, so the titanium inner liner does not need to meet a certain thickness, which reduces the consumption of titanium while improving the heat transfer efficiency, further reducing the production cost, and is conducive to the promotion of electric cups with three-layer composite titanium inner liner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, for the ordinary skilled in the art, under the premise of not paying creative labor, other drawings can also be obtained according to these drawings, all belong to the protection scope of the utility model, wherein:

[0019] Figure 1 It is the three-layer composite titanium inner container's electric heating cup's three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is Figure 1 The sectional view of the three-layer composite titanium inner container's electric heating cup shown in;

[0021] Figure 3 It is Figure 2 The partial enlarged schematic diagram of the sectional view A of the three-layer composite titanium inner container's electric heating cup shown in;

[0022] Figure 4 It is Figure 2 The partial enlarged schematic diagram of the sectional view B of the three-layer composite titanium inner container's electric heating cup shown in;

[0023] Figure 5 It is Figure 1 The explosion schematic diagram of the three-layer composite titanium inner container's electric heating cup shown in;

[0024] Figure 6 It is Figure 5 The structure schematic diagram of the cup cover shell of the three-layer composite titanium inner container's electric heating cup shown in;

[0025] Figure 7 It is Figure 5 The structure schematic diagram of the cup cover inner shell of the three-layer composite titanium inner container's electric heating cup shown in;

[0026] Figure 8 It is Figure 5 The structure schematic diagram of one angle of the cup cover body of the three-layer composite titanium inner container's electric heating cup shown in;

[0027] Figure 9 It is Figure 8 The structure schematic diagram of another angle of the cup cover body of the three-layer composite titanium inner container's electric heating cup shown in;

[0028] Figure 10 It is Figure 5 The structure schematic diagram of the fixed support of the three-layer composite titanium inner container's electric heating cup shown in;

[0029] Figure 11 It is Figure 5A structure schematic view of a heating disc body of an electric heating cup with a three-layer composite titanium inner container shown in the figure;

[0030] Figure 12 is Figure 5 A structure schematic view of a control circuit board of an electric heating cup with a three-layer composite titanium inner container shown in the figure;

[0031] Figure 13 is Figure 5 A structure schematic view of a mounting bracket of an electric heating cup with a three-layer composite titanium inner container shown in the figure;

[0032] Figure 14 is Figure 5 A structure schematic view of a base shell of an electric heating cup with a three-layer composite titanium inner container shown in the figure. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. It should be noted that, in the case of no conflict, each feature in the embodiments of the present application can be combined with each other, and the combined embodiment is still within the protection scope of the present application.

[0035] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "setting", "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or rotatably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] Titanium inner liner electric heating cup refers to a cup with titanium inner liner and electric heating function. In the prior art, the titanium electric heating cup provided in the Chinese utility model patent with application number 202220621048.4 comprises a cup cover assembly, a titanium shell, a titanium inner liner, a vacuum bottom, a heating disc assembly and a bottom cover. The cup cover assembly is threadedly connected with the titanium shell. The titanium shell is connected with the bottom cover through screws or buckles. The titanium inner liner is located in the titanium shell. The mouth of the titanium inner liner is welded with the mouth of the titanium shell. The upper part of the vacuum bottom is welded with the bottom of the titanium inner liner. The lower part of the vacuum bottom is connected with the bottom of the titanium shell. A vacuum heat insulation layer is formed between the titanium shell and the titanium inner liner. The bottom cover is arranged on the bottom of the titanium shell. The bottom cover, the vacuum bottom and the titanium inner liner form a closed containing cavity. The heating disc assembly is located in the containing cavity.

[0037] However, the mouth of the titanium inner liner is welded with the mouth of the titanium shell. The upper part of the vacuum bottom is welded with the bottom of the titanium inner liner. The lower part of the vacuum bottom is welded with the bottom of the titanium shell, so as to form a vacuum heat insulation layer between the titanium shell and the titanium inner liner. Since the metal stability of titanium is high, it is difficult to weld with any metal. In order to ensure the vacuum, the above welding needs to be completed under harsh conditions, which increases the welding difficulty and production cost. Moreover, the titanium inner liner and the titanium shell need to be vacuumized to become a vacuum cup. Since vacuumization is required, the titanium inner liner and the titanium shell need to meet a certain thickness, which consumes a large amount of titanium. Furthermore, as a rare metal, the thickening of the shell and the inner liner increases the cost of manufacturing the electric heating cup and wastes titanium resources.

[0038] As shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , the utility model embodiment provides a three-layer composite titanium inner liner electric heating cup, which comprises a cup cover assembly 10, a non-titanium metal outer liner 20, a titanium inner liner 30, a heating disc assembly 40 and a base shell 50. The cup cover assembly 10 is screwed at the top opening of the non-titanium metal outer liner 20. The titanium inner liner 30 is contained in the non-titanium metal outer liner 20. The base shell 50 is fixed at the bottom opening of the non-titanium metal outer liner 20. The heating disc assembly 40 is fixed at the bottom of the titanium inner liner 30 and contained in the closed containing cavity formed by the base shell 50, the titanium inner liner 30 and the non-titanium metal outer liner 20.

[0039] The non-titanium metal outer barrel 20 is a double-layer non-titanium easy-to-weld metal outer barrel 20, the top of the double-layer outer barrel is welded to each other, the bottom of the double-layer outer barrel is welded to each other, so that the double-layer non-titanium easy-to-weld metal outer barrel 20 has a vacuum insulation layer 200, and the top opening of the titanium inner barrel 30 is welded at the top opening of the double-layer non-titanium easy-to-weld metal outer barrel 20.

[0040] In the utility model, adopt above -mentioned scheme, because the top of the double -layer non -titanium easy -to -weld metal outer barrel 20 is welded to each other and the bottom of the double -layer non -titanium easy -to -weld metal outer barrel 20 is welded to each other to form the vacuum insulation layer 200 between the double -layer, welding is relatively simple, success rate is higher, can play the role of heat preservation and heat insulation, so the top opening of the titanium inner barrel 30 only needs to be sealed and welded with the opening of the top of the double -layer non -titanium easy -to -weld metal outer barrel 20, and the strict vacuum degree between the double -layer non -titanium easy -to -weld metal outer barrel 20 and the titanium inner barrel 30 does not need to be guaranteed, because welding does not need harsh conditions, thereby reducing the difficulty degree of welding, and the production cost is reduced initially;Moreover, the titanium inner barrel 30 and the double -layer non -titanium easy -to -weld metal outer barrel 20 do not need to be vacuumized, so the titanium inner barrel 30 does not need to satisfy certain thickness, reduces the consumption of titanium while improving heat transfer efficiency, further reduces production cost, and is favorable to the promotion of the three -layer composite titanium inner barrel 30 electric cup.

[0041] As Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 , Figure 13 and Figure 14 As shown in order to assemble the cup cover assembly 10, the cup cover assembly 10 includes: a cup cover shell 11, a cup cover inner shell 12, a cup cover body 13 clamped between the cup cover shell 11 and the cup cover inner shell 12, and a fixed support 14 fixed to the cup cover shell 11;

[0042] The bottom surface of the fixed support 14 is provided with a first fixed convex column 141, the first fixed convex column 141 penetrates through the cup cover shell 11 and extends into the cup cover body 13, and a fixed bolt penetrates through the cup cover inner shell 12 and the cup cover body 13 in sequence and then extends into the first fixed convex column 141 and is fixed, so that the cup cover shell 11, the cup cover body 13 and the cup cover inner shell 12 are fixed together by the fixed bolt and the fixed support 14;

[0043] The inner side of the cup cover body 13 is provided with an internal thread 131, the top outer side of the double-layer non-titanium easy-to-weld metal outer barrel 20 is provided with an external thread 21, and the cup cover body 13 is screwed with the top outer side of the double-layer non-titanium easy-to-weld metal outer barrel 20 through the internal thread 131 and the external thread 21.

[0044] In order to improve the sealing between the top of the cup cover body 13 and the inner wall of the cup cover shell 11, the cup cover assembly 10 further comprises a sealing ring 15, the cup cover inner shell 12 is provided with a first exhaust hole 121, the cup cover body 13 is provided with a second exhaust hole 132, the cup cover shell 11 is provided with a third exhaust hole 111, and the first exhaust hole, the second exhaust hole 132 and the third exhaust hole 111 are communicated; the top of the cup cover body 13 is provided with a sealing groove 133 around the position of the second exhaust hole 132, the sealing ring 15 is embedded in the sealing groove 133, and the cup cover body 13 abuts the sealing ring 15 against the inner side of the cup cover shell 11, so as to improve the sealing between the top of the cup cover body 13 and the inner wall of the cup cover shell 11 through the sealing ring 15.

[0045] In order to improve the sealing between the cup cover assembly 10 and the double-layer non-titanium easy-to-weld metal outer barrel 20, the cup cover assembly 10 further comprises a sealing gasket 16, the cup cover inner shell 12 is provided with a gasket groove 122, and after the sealing gasket 16 is embedded in the gasket groove 122, the cup cover inner shell 12 abuts the sealing gasket 16 against the top opening of the double-layer non-titanium easy-to-weld metal outer barrel 20, so as to improve the sealing between the cup cover assembly 10 and the double-layer non-titanium easy-to-weld metal outer barrel 20 through the sealing gasket 16.

[0046] In the utility model, the double-layer material of the double-layer non-titanium easy-to-weld metal outer barrel 20 is one or two of stainless steel, copper alloy, iron alloy and aluminum alloy, and the material of the double-layer non-titanium easy-to-weld metal outer barrel 20 can be welded conveniently, and after the vacuum heat insulation layer 200 is formed, heat preservation and heat insulation can be realized, and the utility model does not make limitation to this.

[0047] In order to fix the heating disc assembly 40, the heating disc assembly 40 comprises a heating disc body 41, a control circuit board 42 and a mounting bracket 43, the heating disc body 41 is fixed to the bottom of the titanium inner barrel 30, the mounting bracket 43 is fixed to the bottom of the heating disc body 41, and the control circuit board 42 is fixed to the bottom of the mounting bracket 43.

[0048] In order to assemble the heating disc assembly 40, the heating disc body 41 is provided with a second fixing protrusion 411 extending towards the mounting bracket 43, a fixing bolt is inserted into the second fixing protrusion 411 through the mounting bracket 43, the mounting bracket 43 is provided with a third fixing protrusion 431 extending towards the control circuit board 42, a fixing screw is inserted into the third fixing protrusion 431 through the control circuit board 42, and the mounting bracket 43 is provided with a wire through hole 432, and the power line connected to the control circuit board 42 is inserted into the wire through hole 432 and electrically connected to the heating disc body 41.

[0049] In order to avoid the short circuit of the power line and the double-layer non-titanium easy-to-weld metal outer barrel 20, the mounting bracket 43 is provided with an isolation protrusion 433 extending towards the position where the heating disc body 41 is connected to the power line, the isolation protrusion 433 is used to separate the position where the heating disc body 41 is connected to the power line from the double-layer non-titanium easy-to-weld metal outer barrel 20, and the short circuit of the power line and the double-layer non-titanium easy-to-weld metal outer barrel 20 is avoided through the isolation protrusion 433.

[0050] In order to supply power to the electric heating cup of the three-layer composite titanium inner barrel 30, one side of the control circuit board 42 is provided with a power interface 421, the base shell 50 is provided with an interface opening 51, and the power interface 421 is embedded in the interface opening 51, so that an external power connector can be inserted into the power interface 421 to supply power to the electric heating cup of the three-layer composite titanium inner barrel 30.

[0051] In order to control the on-off of the electric heating cup of the three-layer composite titanium inner barrel 30, the other side of the control circuit board 42 is provided with a switch button 422, the base shell 50 is provided with a button opening 52, and the switch button 422 is embedded in the button opening 52, so that a user can press the switch button 422 to control the on-off of the electric heating cup of the three-layer composite titanium inner barrel 30.

[0052] The utility model has been described in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the present application, and still fall within the protection scope of the utility model.

Claims

1. A three-layer composite titanium liner electric heating cup, characterized in that: include: A cup cover assembly, a non-titanium outer liner, a titanium inner liner, a heating plate assembly, and a base shell. The cup cover assembly is screwed to the top opening of the non-titanium outer liner, the titanium inner liner is accommodated in the non-titanium outer liner, the base shell is fixed to the bottom opening of the non-titanium outer liner, and the heating plate assembly is fixed to the bottom of the titanium inner liner and accommodated in a closed accommodation cavity formed by the base shell, the titanium inner liner, and the non-titanium outer liner. Among them, the non-titanium metal outer liner is a double-layer non-titanium easy-to-weld metal outer liner, the tops of the double-layer outer liner are welded to each other, and the bottoms of the double-layer outer liner are welded to each other, so that the double-layer non-titanium easy-to-weld metal outer liner has a medium vacuum insulation layer, and the top opening of the titanium inner liner is welded to the top opening of the double-layer non-titanium easy-to-weld metal outer liner.

2. The electric heating cup with three-layer composite titanium liner according to claim 1, characterized in that: The cup cover assembly includes: a cup cover outer shell, a cup cover inner shell, a cup cover body sandwiched between the cup cover outer shell and the cup cover inner shell, and a fixing bracket fixed to the cup cover outer shell; A first fixing boss is provided on the bottom surface of the fixing bracket. The first fixing boss passes through the cup cover outer shell and then extends into the cup cover body. A fixing bolt passes through the cup cover inner shell and the cup cover body in sequence and then extends into the first fixing boss for fixing. The inner side of the cup cover body is provided with an internal thread, and the top outer side of the double-layer non-titanium easy-to-weld metal outer liner is provided with an external thread. The cup cover body is screwed to the top outer side of the double-layer non-titanium easy-to-weld metal outer liner through the internal thread and the external thread.

3. The electric heating cup with three-layer composite titanium liner according to claim 2, characterized in that: The cup cover assembly further includes: a sealing ring; The cup cover inner shell is provided with a first exhaust hole, the cup cover body is provided with a second exhaust hole, and the cup cover outer shell is provided with a third exhaust hole, and the first exhaust hole, the second exhaust hole and the third exhaust hole are connected; A sealing groove is provided on the top of the cup cover body around the second exhaust hole. After the sealing ring is embedded in the sealing groove, the cup cover body presses the sealing ring against the inner side of the cup cover shell.

4. The electric heating cup with three-layer composite titanium liner according to claim 2, characterized in that: The cup cover assembly further includes: a sealing gasket; The cup cover inner shell is provided with a gasket groove. After the sealing gasket is embedded in the gasket groove, the cup cover inner shell presses the sealing gasket tightly against the top opening of the double-layer non-titanium easy-to-weld metal outer shell.

5. The electric heating cup with three-layer composite titanium liner according to claim 1, characterized in that: The double-layer material of the double-layer non-titanium easy-to-weld metal outer liner is one or two of stainless steel, copper alloy, iron alloy, and aluminum alloy.

6. The electric heating cup with three-layer composite titanium liner according to claim 1, characterized in that: The heating plate assembly includes: a heating plate body, a control circuit board, and a mounting bracket; The heating plate body is fixed to the bottom of the titanium liner, the mounting bracket is fixed to the bottom of the heating plate body, and the control circuit board is fixed to the bottom of the mounting bracket.

7. The electric heating cup with three-layer composite titanium liner according to claim 6, characterized in that: The heating plate body extends toward the mounting bracket to form a second fixing protrusion, and the fixing bolt passes through the mounting bracket and then extends into the second fixing protrusion for fixing; The mounting bracket extends toward the control circuit board to form a third fixing protrusion, and the fixing screw passes through the control circuit board and then extends into the third fixing protrusion for fixing; The mounting bracket is provided with a wire through hole, and the power line connected to the control circuit board passes through the wire through hole and is electrically connected to the heating plate body.

8. The electric heating cup with three-layer composite titanium liner according to claim 7, characterized in that: The mounting bracket extends toward the wiring position of the heating plate body to form an isolation convex plate, and the isolation convex plate is used to separate the wiring position of the heating plate body from the double-layer non-titanium easy-to-weld metal outer shell.

9. The electric heating cup with three-layer composite titanium liner according to claim 6, characterized in that: A power interface is provided on one side of the control circuit board, and an interface opening is provided on the base shell. The power interface is embedded in the interface opening.

10. The electric heating cup with three-layer composite titanium liner according to claim 6, characterized in that: A switch button is provided on the other side of the control circuit board, and the base shell is provided with a button opening, and the switch button is embedded in the button opening.

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