Graphene heating type constant-temperature cup

Abstract

The utility model discloses a graphene heating type constant-temperature cup which comprises a main machine and a cup body arranged on the main machine, a heat conduction piece capable of heating liquid in the cup body is arranged on the main machine or at the bottom of the cup body, a graphene heating film is attached to the heat conduction piece, and the main machine is provided with a PCB and a power module capable of supplying power to the graphene heating film. The main machine is further provided with a fixing frame and a contact type temperature measuring element tightly attached to the heat conduction piece, and an elastic piece capable of pressing the contact type temperature measuring element on the heat conduction piece is arranged between the fixing frame and the contact type temperature measuring element. The graphene heating film has the advantages of being large in heating area, small in overall size and the like, and the heat conduction piece can be evenly heated.

Description

Technical Field

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

[0002] Existing cups are generally divided into ordinary non-insulated cups and thermos cups. The thermos cup uses a double-layer vacuum structure to maintain the temperature of the liquid in the cup for a period of time to prevent the liquid from cooling down quickly, but it will still become cold after a certain period of time. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a graphene heated constant temperature cup, which can adjust the temperature of the liquid in the cup.

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

[0005] A graphene heated constant temperature cup comprises a main unit and a cup body arranged on the main unit, a heat conducting member capable of heating liquid in the cup body is arranged on the main unit or at the bottom of the cup body, a graphene heating film is attached to the heat conducting member, the main unit is provided with a PCB board and a power module capable of supplying power to the graphene heating film, the main unit is also provided with a fixing frame and a contact temperature measuring element closely attached to the heat conducting member, and an elastic member capable of pressing the contact temperature measuring element onto the heat conducting member is arranged between the fixing frame and the contact temperature measuring element.

[0006] In a preferred embodiment of the present invention, a lower port is provided at the lower end of the cup body, the heat-conducting member comprises a metal heat-conducting sheet arranged on the upper part of the main unit and located at the lower port of the cup body, the graphene heating film is attached to the lower surface of the metal heat-conducting sheet, and a seal capable of closing the gap between the metal heat-conducting sheet and the cup body is also provided on the upper part of the main unit, and a cup cavity for containing liquid is formed between the seal, the metal heat-conducting sheet and the cup body.

[0007] In a preferred embodiment of the present invention, the metal thermal conductive sheet is a cap structure, the seal surrounds the metal thermal conductive sheet and abuts against the outer wall of the metal thermal conductive sheet, the lower end surface of the cup body abuts against the upper surface of the seal, and the upper part of the metal thermal conductive sheet protrudes from the upper surface of the seal.

[0008] In a preferred embodiment of the present invention, a avoidance hole is provided in the middle of the graphene heating film, and the upper end of the contact temperature measuring element passes through the avoidance hole and abuts against the lower surface of the metal heat conductive sheet.

[0009] In a preferred embodiment of the present invention, a limit platform is provided on the upper part of the contact temperature measuring element, and the elastic member is a compression spring sleeved outside the limit platform, the upper end of the compression spring abuts against the limit platform, and the lower end of the compression spring abuts against the fixing frame.

[0010] In a preferred embodiment of the present invention, an external thread is provided on the outer wall of the lower end of the cup body, a connecting tube is provided at the upper end of the main machine, the lower end of the cup body is inserted into the connecting tube, and an internal thread meshing with the external thread is provided on the inner wall of the connecting tube.

[0011] In a preferred embodiment of the present invention, an upper end of the cup body is provided with an upper port, and an openable and closable cup cover is provided at the upper port.

[0012] In a preferred embodiment of the present invention, the host comprises a shell and a bottom cover detachably mounted at the bottom of the shell, the power module comprises a battery arranged inside the shell, and the shell is provided with a charging interface capable of supplying power to the battery.

[0013] In a preferred solution of the present invention, a control panel is also provided on the housing.

[0014] In a preferred embodiment of the present invention, the lower end of the cup body is closed, the bottom plate of the cup body is a heat-conducting metal plate or ceramic plate, the heat-conducting member is the bottom plate of the cup body, the graphene heating film is attached to the lower surface of the bottom plate, an avoidance hole is provided in the middle of the graphene heating film, and the upper end of the contact temperature measuring element passes through the avoidance hole and abuts against the lower surface of the bottom plate.

[0015] The beneficial effects of the utility model are as follows: First, compared with ordinary heating elements, the graphene heating film has the advantages of large heating area and small overall volume, which can make the heat-conducting part evenly heated. At the same time, bubbles are not easy to be generated between the graphene heating film and the heat-conducting part. Second, a contact temperature measuring element is used to measure the temperature, which has higher temperature measurement accuracy than a non-contact temperature measuring element. Third, the upper part of the metal heat-conducting sheet is set to protrude from the upper surface of the seal, which can increase the contact area between the metal heat-conducting sheet and the liquid in the cup body and improve the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of embodiment 1 of the utility model;

[0017] Figure 2 It is an exploded view of Embodiment 1 of the present utility model;

[0018] Figure 3 It is a cross-sectional view of Example 1 of the utility model;

[0019] Figure 4 yes Figure 3 A magnified view of part A;

[0020] Figure 5 It is a structural schematic diagram of the main parts in Example 2 of the utility model. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0022] It should be noted that all directional indications in the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. In addition, the descriptions of "preferred", "sub-preferred", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "preferred" or "sub-preferred" may explicitly or implicitly include at least one such feature.

[0023] Reference Figures 1 to 5 The utility model proposes a graphene heating constant temperature cup, comprising a host 1, a cup body 2 arranged on the host 1, a heat conductive member capable of heating the liquid in the cup body 2 is arranged on the host 1 or at the bottom of the cup body 2, a graphene heating film 3 is attached to the heat conductive member, the host 1 is provided with a PCB board 95 and a power module capable of supplying power to the graphene heating film 3, the host 1 is also provided with a fixing frame 4 and a contact temperature measuring element 5 closely attached to the heat conductive member, an elastic member 6 capable of pressing the contact temperature measuring element 5 onto the heat conductive member is arranged between the fixing frame 4 and the contact temperature measuring element 5.

[0024] The above-mentioned graphene heating film 3 is purchased on the market, and its specific structure is the existing technology, such as the graphene composite heating film disclosed in the patent with publication number CN108248120A, or the graphene heating film 3 disclosed in the patent with publication number CN207968991U, or the graphene heating film 3 disclosed in the patent with publication number CN206932422U, or other products in the prior art.

[0025] The specific structure of the above-mentioned contact temperature measuring element 5 is also prior art. For example, its main body adopts a rigid rod, and its upper end adopts a rare earth perovskite type direct contact temperature measuring thin film element disclosed in publication number CN101880162A, or a direct temperature measuring COT surface thermocouple disclosed in patent publication number CN115717944A, or other products in the prior art.

[0026] In the utility model, a control chip is arranged on the PCB board 95, and the power module, the graphene heating film 3, and the contact temperature measuring element 5 are respectively connected to the control chip, and its working principle is as follows: first, the graphene heating film 3 is energized to generate heat, and the heat conductor is heated. Taking the target temperature as 50 degrees Celsius and the error as 0.5 degrees Celsius as an example, when the contact temperature measuring element 5 measures that the temperature of the heat conductor is greater than or equal to 50.5 degrees, the control chip issues an instruction to cut off the power of the graphene heating film 3; when the contact temperature measuring element 5 measures that the temperature of the heat conductor is less than or equal to 49.5 degrees, the graphene heating film 3 is energized and continues to heat, so that the temperature of the heat conductor can be maintained at about 50 degrees.

[0027] The present invention has the following advantages: first, compared with ordinary heating elements, the graphene heating film 3 has the advantages of large heating area and small overall volume, which can make the heat-conducting part evenly heated, and at the same time, it is not easy to generate bubbles between the graphene heating film 3 and the heat-conducting part. Second, the temperature is measured by using a contact temperature measuring element, which is more accurate than a non-contact temperature measuring element.

[0028] Example 1

[0029] Figures 1 to 4 Embodiment 1 of the utility model is shown. In this embodiment, a lower port is provided at the lower end of the cup body 2, and the heat-conducting member includes a metal heat-conducting sheet 7, such as an aluminum sheet, a copper sheet, an iron sheet, etc., which is arranged on the upper part of the host 1 and located at the lower port of the cup body 2. The graphene heating film 3 is attached to the lower surface of the metal heat-conducting sheet 7. A sealing member 71 capable of closing the gap between the metal heat-conducting sheet 7 and the cup body 2 is also provided on the upper part of the host 1. The sealing member 71 is made of elastic materials such as rubber and silicone. A cup cavity for containing liquid is formed between the sealing member 71, the metal heat-conducting sheet 7 and the cup body 2.

[0030] In this embodiment, the metal thermal conductive sheet 7 is a cap structure, specifically in the shape of a straw hat, the seal 71 surrounds the metal thermal conductive sheet 7 and abuts against the outer wall of the metal thermal conductive sheet 7, the lower end surface of the cup body 2 abuts against the upper surface of the seal 71, and the upper part of the metal thermal conductive sheet 7 protrudes from the upper surface of the seal 71. An avoidance hole 31 is provided in the middle of the graphene heating film 3, and the upper end of the contact temperature measuring element 5 passes through the avoidance hole 31 and abuts against the lower surface of the metal thermal conductive sheet 7. In this design, since the graphene heating film 3 is arranged around the middle of the metal thermal conductive sheet 7, the temperature of the middle of the metal thermal conductive sheet 7 is basically the same as that of other parts. The contact temperature measuring element 5 is used to measure the temperature at this position, which can improve the measurement accuracy as much as possible while avoiding the graphene heating film 3.

[0031] Specifically, a limit platform 51 is provided on the upper part of the contact temperature measuring element 5 , and the elastic member 6 is a compression spring sleeved outside the limit platform 51 , the upper end of the compression spring abuts against the limit platform 51 , and the lower end of the compression spring abuts against the fixing frame 4 .

[0032] Furthermore, an outer wall at the lower end of the cup body 2 is provided with an outer thread, and a connecting tube 101 is provided at the upper end of the host 1. The lower end of the cup body 2 is inserted into the connecting tube 101, and an inner thread engaged with the outer thread is provided on the inner wall of the connecting tube 101. With such a design, the cup body 2 is detachable, and it is convenient to remove the cup body 2 for cleaning.

[0033] Furthermore, an upper port is provided at the upper end of the cup body 2, and an openable cup cover 22 is provided at the upper port. In order to improve the sealing performance, a sealing ring 23 is provided between the cup cover 22 and the cup body 2.

[0034] Reference Figure 2 The host 1 includes a housing 11 and a bottom cover 12 detachably mounted at the bottom of the housing 11. The power module includes a battery 91 disposed inside the housing 11. The housing 11 is provided with a charging interface 92 capable of supplying power to the battery 91. The housing 11 is also provided with a control panel 93.

[0035] Example 2

[0036] Figure 5 Embodiment 2 of the utility model is shown. This embodiment has a similar structure to Embodiment 1, and the difference lies in that: in this embodiment, the lower end of the cup body 2 is closed, and the bottom plate 201 of the cup body 2 is a heat-conducting metal plate or ceramic plate, the heat-conducting member is the bottom plate 201 of the cup body 2, the graphene heating film 3 is attached to the lower surface of the bottom plate 201, and an avoidance hole 31 is provided in the middle of the graphene heating film 3, and the upper end of the contact temperature measuring element 5 passes through the avoidance hole 31 and abuts against the lower surface of the bottom plate 201.

[0037] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the utility model concept, or directly or indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A graphene heated constant temperature cup, characterized in that: The invention comprises a main unit (1), and a cup body (2) arranged on the main unit (1); a heat conducting member capable of heating liquid in the cup body (2) is arranged on the main unit (1) or at the bottom of the cup body (2); a graphene heating film (3) is attached to the heat conducting member; the main unit (1) is provided with a PCB board (95) and a power module capable of supplying power to the graphene heating film (3); the main unit (1) is also provided with a fixing frame (4) and a contact temperature measuring element (5) in close contact with the heat conducting member; and an elastic member (6) capable of pressing the contact temperature measuring element (5) against the heat conducting member is arranged between the fixing frame (4) and the contact temperature measuring element (5).

2. A graphene heated constant temperature cup according to claim 1, characterized in that: The cup body (2) is provided with a lower port at the lower end, the heat-conducting member comprises a metal heat-conducting sheet (7) arranged on the upper part of the main unit (1) and located at the lower port of the cup body (2), the graphene heating film (3) is attached to the lower surface of the metal heat-conducting sheet (7), and the upper part of the main unit (1) is also provided with a sealing member (71) capable of closing the gap between the metal heat-conducting sheet (7) and the cup body (2), and a cup cavity for containing liquid is formed between the sealing member (71), the metal heat-conducting sheet (7) and the cup body (2).

3. A graphene heated constant temperature cup according to claim 2, characterized in that: The metal heat conductive sheet (7) is a cap structure in the shape of a straw hat; the sealing member (71) surrounds the metal heat conductive sheet (7) and abuts against the outer wall of the metal heat conductive sheet (7); the lower end surface of the cup body (2) abuts against the upper surface of the sealing member (71); and the upper part of the metal heat conductive sheet (7) protrudes from the upper surface of the sealing member (71).

4. A graphene heated constant temperature cup according to claim 2, characterized in that: A avoidance hole (31) is provided in the middle of the graphene heating film (3), and the upper end of the contact temperature measuring element (5) passes through the avoidance hole (31) and abuts against the lower surface of the metal heat conducting sheet (7).

5. The graphene heated constant temperature cup according to claim 4, characterized in that: A limiting platform (51) is arranged on the upper part of the contact temperature measuring element (5); the elastic member (6) is a compression spring sleeved outside the limiting platform (51); the upper end of the compression spring abuts against the limiting platform (51); and the lower end of the compression spring abuts against the fixing frame (4).

6. The graphene heated constant temperature cup according to claim 2, characterized in that: An external thread is provided on the outer wall of the lower end of the cup body (2); a connecting tube (101) is provided on the upper end of the main machine (1); the lower end of the cup body (2) is inserted into the connecting tube (101); and an internal thread meshing with the external thread is provided on the inner wall of the connecting tube (101).

7. The graphene heated constant temperature cup according to claim 1, characterized in that: An upper port is provided at the upper end of the cup body (2), and an openable and closable cup cover (22) is provided at the upper port.

8. The graphene heated constant temperature cup according to claim 1, characterized in that: The host (1) comprises a housing (11) and a bottom cover (12) detachably mounted at the bottom of the housing (11); the power module comprises a battery (91) arranged inside the housing (11); and the housing (11) is provided with a charging interface (92) capable of supplying power to the battery (91).

9. The graphene heated constant temperature cup according to claim 8, characterized in that: The housing (11) is also provided with a control panel (93).

10. The graphene heated constant temperature cup according to claim 1, characterized in that: The lower end of the cup body (2) is closed, the bottom plate (201) of the cup body (2) is a heat-conducting metal plate or ceramic plate, the heat-conducting member is the bottom plate (201) of the cup body (2), the graphene heating film (3) is attached to the lower surface of the bottom plate (201), a avoidance hole (31) is provided in the middle of the graphene heating film (3), and the upper end of the contact temperature measuring element (5) passes through the avoidance hole (31) and abuts against the lower surface of the bottom plate (201).

Images