Thermosiphon with a water-proof structure

Abstract

The utility model discloses a constant temperature adjusts milk cup with waterproof structure, including cup body and heating seat, is provided with battery, heating assembly, power panel and control circuit board in heating seat, the bottom of cup body forms a circle of the joint part of downward extension, and the outer periphery of joint part is equipped with sealing washer, including a circle sealing groove, and joint part is embedded into sealing groove, and the outer peripheral surface of sealing washer is provided with outer thread, and the inner periphery surface of heating seat forms the internal thread matched with outer thread, and the lateral wall of heating seat is provided with charging port and button hole, and the outer end of charging port is embedded with first waterproof plug, and first waterproof plug at least includes the port sealing part of in -to charging port, and button hole and function button are relatively arranged to each other, and button hole is connected with second waterproof plug. The scheme is to the different position, different type's water inlet risk point and sets up corresponding sealing piece to realize overall waterproof.

Description

Technical Field

[0001] This utility model relates to the field of constant temperature milk cups, and in particular to a constant temperature milk cup with a waterproof structure. Background Technology

[0002] Portable constant-temperature formula warming devices (such as constant-temperature formula warming cups) are primarily used outdoors, and some mothers use them directly to warm formula. Therefore, these devices usually need to be washed with water after use. However, the waterproof performance of current market constant-temperature formula warming cups is insufficient, and they generally cannot be directly rinsed with water. This is mainly because the devices are primarily composed of a stainless steel cup body and a plastic heating base. Therefore, there are usually gaps at the joint between the cup body and the heating base, allowing water to easily enter during cleaning. Furthermore, the bottom of the cup body and the space inside the heating base contain heating elements, circuit boards, batteries, and other components. Water ingress can easily pose a safety hazard. At the same time, the control and charging areas are concentrated on the heating base, requiring multiple function key holes and charging ports on its surface. Additionally, the heating base requires screws to secure it to the cup body, creating multiple points of water ingress risk on the heating base.

[0003] In existing technologies, to prevent water from entering at the junction of the cup body and the plastic heating base / end cap, some sealing structures have been designed. For example, the invention patent with authorization announcement number CN105747771B discloses an automatic temperature-controlled thermos cup, which includes a lid and a cup body. The sealing end cap is located at the end of the base connected to the cup body to isolate the base from the cup body. Furthermore, a waterproof sealing ring is provided between the sealing end cap and the bottom of the cup body to enhance waterproof performance. However, on the one hand, the sealing end cap requires additional space for the waterproof structure; on the other hand, even with the waterproof sealing ring, some water may still enter the groove where the sealing end cap is installed when the user rinses the device. During heating, a small amount of water in the groove may also enter the device as steam. In addition, effective waterproof structures are needed for other water ingress risk points such as button holes. Utility Model Content

[0004] Therefore, in order to solve the above problems, this utility model provides a constant temperature milk cup with a waterproof structure.

[0005] This utility model is achieved through the following technical solution: A waterproof, temperature-controlled formula cup includes a cup body and a heating base. The heating base houses a battery, a heating element, a power board, and a control circuit board. The power board has power terminals, and the control circuit board has function buttons. The bottom of the cup body has a downward-extending locking portion, with a stepped outer periphery. A sealing ring is fitted around the outer periphery of the locking portion. The sealing ring has a U-shaped cross-section and includes a sealing groove. The locking portion is embedded in the sealing groove. External threads are provided on the outer surface of the sealing ring. The heating base opens towards the top. The locking part and the sealing ring extend into the opening of the heating base. An internal thread matching the external thread is formed on the inner circumferential surface of the heating base. A charging port and a button hole are provided on the side wall of the heating base. The power terminal extends into the charging port. A first waterproof plug is embedded at the outer end of the charging port. The first waterproof plug includes at least a port sealing part that extends into the charging port. The button hole and the function button are arranged opposite to each other. The button hole is connected to a second waterproof plug. The second waterproof plug passes through the button hole, and the button part of the second waterproof plug extends into the heating base.

[0006] Preferably, the top of the inner circumferential surface of the heating seat is further provided with an annular limiting notch, and the top outer edge of the sealing ring is provided with an extension extending in the circumferential direction, the extension extending into the annular limiting notch.

[0007] Preferably, the top of the extension is further provided with at least one annular protrusion.

[0008] Preferably, a first slot is provided on the side wall of the heating base, and the charging port is located in the first slot.

[0009] Preferably, the first snap-fit ​​groove is further provided with a plug hole, and the first waterproof plug also includes a rotating shaft portion that is inserted into the plug hole. A fixing portion is formed on the outer periphery of the rotating shaft portion, and the fixing portion extends into the plug hole.

[0010] Preferably, the bottom of the first waterproof plug extends downward to form a handle extending out of the first snap-fit ​​groove.

[0011] Preferably, a second snap-fit ​​groove is provided on the side wall of the heating base, the button hole is provided in the second snap-fit ​​groove, the second waterproof plug is embedded in the second snap-fit ​​groove, and the button part of the second waterproof plug extends into the heating base and contacts the function button.

[0012] Preferably, the outer periphery of the second waterproof plug is formed with a mounting groove, and the outer periphery of the button hole is embedded in the mounting groove.

[0013] Preferably, a bracket is also provided between the cup body and the heating base. The bottom of the bracket is provided with a first snap-fit ​​for fixing the power board and a second snap-fit ​​for fixing the control circuit board. The bottom of the bracket is also provided with multiple limiting posts. The limiting posts are fixed to the bottom of the heating base by screws. The bottom of the heating base is provided with screw holes for mounting screws. The bottom of the screw holes is provided with a waterproof groove, and a sealing gasket is provided in the waterproof groove.

[0014] Preferably, the lower surface of the heating base is further provided with a gasket groove, and a sealing gasket is provided in the gasket groove.

[0015] The beneficial effects of this utility model's technical solution are mainly reflected in: 1. In this utility model, the sealing ring is tightly fitted by combining the snap-fit ​​part and the stepped surface at the bottom of the cup body with the top structure of the heating base. The sealing ring has a U-shaped cross-section and can wrap around the outer periphery of the snap-fit ​​part. At the same time, the outer periphery of the sealing ring and the inner periphery of the heating base are matched by threads, thereby strengthening the sealing effect at the connection between the cup body and the heating base, and without occupying too much space.

[0016] 2. An extension can be formed on the top outer edge of the U-shaped sealing ring, and an annular limiting notch matching the extension can be formed on the top of the inner circumferential surface of the heating seat to increase the sealing effect. At least one annular protrusion can also be provided on the top of the extension, thereby forming a multi-level waterproof structure between the extension and the stepped surface.

[0017] 3. In addition to the connection between the cup body and the heating base, corresponding seals are set for various water ingress risk points such as the charging port, button hole, and screw hole on the heating base, according to their shape, location, and usage scenario, so as to achieve complete waterproofing. Attached Figure Description

[0018] Figure 1 This is an exploded view of a thermos-controlled milk cup with a waterproof structure; Figure 2 This is a top view of a thermos-controlled milk cup with a waterproof structure; Figure 3 yes Figure 2 A sectional view along line AA. Figure 4 yes Figure 3 Enlarged view of section C; Figure 5 yes Figure 3 Enlarged view of section D; Figure 6 yes Figure 3 Enlarged view of section E in the middle; Figure 7 It is a top view of the base (including all components inside the base), sealing ring, bracket and heating components; Figure 8 yes Figure 7 Sectional view along line BB; Figure 9 yes Figure 8 Enlarged view of section F in the middle; Figure 10 This is a schematic diagram of the structure of the first waterproof plug; Figure 11 This is a schematic diagram of the second waterproof plug. Detailed Implementation

[0019] To make the objectives, advantages, and features of this utility model clearer and more detailed, the following non-limiting description of preferred embodiments will be illustrated and explained. These embodiments are merely typical examples of applying the technical solutions of this utility model; any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by this utility model.

[0020] It should also be stated that, in the description of the solution, the terms "center", "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" in this solution are used for descriptive purposes only and should not be construed as indicating or implying a ranking of importance, or implicitly specifying the number of technical features shown. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0022] This utility model discloses a constant temperature milk cup with a waterproof structure, such as Figures 1-7 As shown, the device includes a cup body 1 and a heating base 2. The heating base 2 contains a battery 3, a heating component 4, a power board 5, and a control circuit board 6. The power board 5 has a power terminal 501 for connecting to an external charging circuit, thereby ensuring that the power board 5 and the battery 3 connected to the power board 5 are charged. The control circuit board 6 has function buttons, which can be one or more, for controlling the power switch and function adjustment.

[0023] like Figure 6As shown, a downwardly extending snap-fit ​​portion 101 is formed at the bottom of the cup body 1. A stepped surface 102 is formed on the outer periphery of the snap-fit ​​portion 101. A sealing ring 8 is fitted on the outer periphery of the snap-fit ​​portion 101. The sealing ring 8 has a U-shaped cross-section and includes a sealing groove 801. The sealing groove 801 opens upward, allowing the snap-fit ​​portion 101 to be inserted into the sealing groove 801 from the top. An external thread 804 is provided on the outer peripheral surface of the sealing ring 8. The heating base 2 opens upward, and the snap-fit ​​portion 101 and the sealing ring 8 extend into the opening of the heating base 2. An internal thread 201 matching the external thread 804 is formed on the inner peripheral surface of the heating base 2. After the product is assembled, the external thread 804 of the sealing ring 8 is engaged with the internal thread 201 on the inner peripheral surface of the heating base 2 and tightened. At this time, the sealing ring 8 is tightly pressed between the side wall of the heating base 2 and the snap-fit ​​portion 101 of the cup body 1.

[0024] like Figure 4 , Figure 11 As shown, the heating base 2 has a charging port 205 and a button hole 207 on its side wall. The power terminal 501 extends into the charging port 205. A first waterproof plug 9 is embedded in the outer end of the charging port 205. The first waterproof plug 9 includes at least a port sealing part 901 that extends into the charging port 205. When the charging port 205 is not in use, the sealing part of the first waterproof plug 9 blocks the charging port 205 to prevent water from entering the power terminal 501. The button hole 207 is arranged opposite to the function button. The button hole 207 is connected to a second waterproof plug 10. The second waterproof plug 10 passes through the button hole 207, and the button part 1002 of the second waterproof plug 10 extends into the heating base 2. When the user presses the second waterproof plug 10 from outside the device, the button part 1002 on the inner side of the second waterproof plug 10 touches the function button, thereby enabling the control of the device function while ensuring the waterproof performance of the button hole 207.

[0025] like Figure 6As shown, in some embodiments, an annular limiting notch 202 is formed on the top of the inner circumferential surface of the heating base 2, and an extension portion 802 extending circumferentially is formed on the top outer edge of the sealing ring 8. The extension portion 802 extends into the annular limiting notch 202, thereby adding a waterproof sealing structure at the connection between the heating base 2 and the cup body 1. In a preferred embodiment, at least one annular protrusion 803 is provided on the top of the extension portion 802. After the product is assembled, the extension portion 802 is pressed into the limiting notch by the stepped surface 102 at the bottom of the cup body 1. The annular protrusion 803 on the top of the extension portion 802 waterproofs any gaps that may exist between the extension portion 802 and the stepped surface 102. The number of annular protrusions 803 can be adjusted according to actual needs. When there are multiple annular protrusions 803, each annular protrusion 803 is spaced apart.

[0026] like Figure 5 , Figure 10 As shown, in some embodiments, a first snap-fit ​​groove 203 is provided on the side wall of the heating base 2. A charging port 205 is embedded in the first snap-fit ​​groove 203. The power terminal 501 extends into the charging port 205. The first waterproof plug 9 is embedded in the first snap-fit ​​groove 203. On the one hand, the first waterproof plug 9 is fixed on the side wall of the heating base 2. On the other hand, the first waterproof plug 9 includes at least a port sealing part 901 that extends into the charging port 205. Thus, a waterproof sealing structure is provided both inside the charging port 205 and in the first snap-fit ​​groove 203 outside the charging port 205.

[0027] like Figure 5 , Figure 10As shown, in a preferred embodiment, the first slot 203 is further provided with an insertion hole 206. The first waterproof plug 9 also includes a rotating shaft portion 902 inserted into the insertion hole 206. A fixing portion 903 is formed on the outer periphery of the rotating shaft portion 902. The diameter of the fixing portion 903 is larger than the diameter of the rotating shaft portion 902. The fixing portion 903 extends into the insertion hole 206, thereby preventing the rotating shaft portion 902 from disengaging from the insertion hole 206. The first waterproof plug 9 can rotate around the rotating shaft portion 902, thereby rotating the first waterproof plug 9 around the rotating shaft portion 902 and moving it away from the charging port during the charging process. The electrical port 205 is provided to prevent interference between the first waterproof plug 9 and the charging port 205. At the same time, the fixing part 903 can also position the first waterproof plug 9. When the first waterproof plug 9 is rotated into place, it is temporarily fixed in the current position by the limiting effect of the fixing part 903 and the insertion hole 206 until the charging is completed. Then the first waterproof plug 9 is rotated back to the initial position and embedded in the first snap-fit ​​groove 203. The bottom of the first waterproof plug 9 can also extend downward and form a handle 904 extending outside the first snap-fit ​​groove 203, which makes it easy for the user to pull open and rotate the first waterproof plug 9.

[0028] like Figure 4 , Figure 11 As shown, in some embodiments, a second snap-fit ​​groove 204 is provided on the side wall of the heating base 2, and the button hole 207 is disposed in the second snap-fit ​​groove 204. The second waterproof plug 10 is embedded in the second snap-fit ​​groove 204, and a portion of the second waterproof plug 10 passes through the button hole 207, so that the button portion 1002 of the second waterproof plug 10 extends into the heating base 2 and contacts the function button, thereby ensuring that when the user presses the second waterproof plug 10, the button portion 1002 touches the function button, thereby realizing the control of the device.

[0029] like Figure 11 As shown, in some embodiments, a mounting groove 1001 is formed around the outer periphery of the second waterproof plug 10, and the outer periphery of the button hole 207 is embedded in the mounting groove 1001, so that the second waterproof plug 10 is firmly fixed on the heating base 2 and the waterproof performance is improved.

[0030] like Figure 1 , Figure 3 , Figures 7-9As shown, in some embodiments, a bracket 7 is further provided between the cup body 1 and the heating base 2. The bottom of the bracket 7 is provided with a first snap-fit ​​member (not shown in the figure) for fixing the power board 5 and a second snap-fit ​​member (not shown in the figure) for fixing the control circuit board 6. In one embodiment, both the first snap-fit ​​member and the second snap-fit ​​member include a snap-fit ​​groove with a downward opening. The top of the power board 5 is embedded in the snap-fit ​​groove of the first snap-fit ​​member, and the top of the control circuit board 6 is embedded in the snap-fit ​​groove of the second snap-fit ​​member to achieve positioning. Further details are omitted here. The bottom of the bracket 7 is also provided with multiple limiting rods. Positioning post 701 is fixed to the bottom of heating base 2 by screws 11. The bottom of heating base 2 is provided with screw holes for mounting screws 11. A waterproof groove 208 is provided at the bottom of the screw hole. A sealing washer 12 is provided in the waterproof groove 208. The sealing washer 12 blocks the waterproof groove 208 and forms a waterproof structure at the bottom of the screw hole. In a preferred embodiment, a gasket groove 209 is also provided on the lower surface of heating base 2. A sealing gasket 13 is provided in the gasket groove 209, thereby adding a waterproof structure at the bottom of the sealing gasket 12 and improving the waterproof effect.

[0031] This utility model has many other embodiments. All technical solutions formed by equivalent transformation or equivalent transformation fall within the protection scope of this utility model.

Claims

1. A constant-temperature milk warmer cup with a waterproof structure, comprising a cup body and a heating base, wherein the heating base houses a battery, a heating element, a power board, and a control circuit board; the power board has power terminals; and the control circuit board has function buttons; characterized in that: The bottom of the cup body has a downwardly extending snap-fit ​​portion. The outer periphery of the snap-fit ​​portion has a stepped surface. A sealing ring is fitted around the outer periphery of the snap-fit ​​portion. The sealing ring has a U-shaped cross-section and includes a sealing groove. The snap-fit ​​portion is embedded in the sealing groove. An external thread is provided on the outer peripheral surface of the sealing ring. The heating base is open to the top. The snap-fit ​​portion and the sealing ring extend into the opening of the heating base. An internal thread matching the external thread is formed on the inner peripheral surface of the heating base. A charging port and a button hole are provided on the side wall of the heating base. The power terminal extends into the charging port. A first waterproof plug is embedded at the outer end of the charging port. The first waterproof plug includes at least a port sealing portion that extends into the charging port. The button hole and the function button are arranged opposite each other. The button hole is connected to a second waterproof plug. The second waterproof plug passes through the button hole, and the button portion of the second waterproof plug extends into the heating base.

2. The constant temperature milk cup with a waterproof structure according to claim 1, characterized in that: The top of the inner circumferential surface of the heating seat is also formed with an annular limiting notch, and the top outer edge of the sealing ring is formed with an extension extending in the circumferential direction, the extension extending into the annular limiting notch.

3. The constant temperature milk warmer cup with a waterproof structure according to claim 2, characterized in that: The top of the extension is also provided with at least one annular protrusion.

4. The constant temperature milk cup with a waterproof structure according to claim 3, characterized in that: The heating base has a first slot on its side wall, and the charging port is located in the first slot.

5. The constant temperature milk cup with a waterproof structure according to claim 4, characterized in that: The first snap-fit ​​groove is also provided with a plug hole, and the first waterproof plug also includes a rotating shaft portion that is inserted into the plug hole. A fixing portion is formed on the outer periphery of the rotating shaft portion, and the fixing portion extends into the plug hole.

6. The constant temperature milk cup with a waterproof structure according to claim 5, characterized in that: The bottom of the first waterproof plug extends downward to form a handle that extends beyond the first snap-fit ​​groove.

7. The constant temperature milk warmer cup with a waterproof structure according to claim 4, characterized in that: A second snap-fit ​​groove is provided on the side wall of the heating base, the button hole is located in the second snap-fit ​​groove, the second waterproof plug is embedded in the second snap-fit ​​groove, and the button part of the second waterproof plug extends into the heating base and contacts the function button.

8. The constant temperature milk cup with a waterproof structure according to claim 7, characterized in that: The outer periphery of the second waterproof plug is formed with a mounting groove, and the outer periphery of the button hole is embedded in the mounting groove.

9. The constant temperature milk warmer cup with a waterproof structure according to claim 1, characterized in that: A bracket is also provided between the cup body and the heating base. The bottom of the bracket is provided with a first snap-fit ​​for fixing the power board and a second snap-fit ​​for fixing the control circuit board. The bottom of the bracket is also provided with multiple limiting posts. The limiting posts are fixed to the bottom of the heating base by screws. The bottom of the heating base is provided with screw holes for mounting screws. The bottom of the screw holes is provided with a waterproof groove, and a sealing gasket is provided in the waterproof groove.

10. The constant temperature milk cup with a waterproof structure according to claim 9, characterized in that: The lower surface of the heating base is also provided with a gasket groove, and a sealing gasket is provided in the gasket groove.

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