Container for loading ferrofluid and carrier liquid thereof

US20260296758A1Pending Publication Date: 2026-10-01QIU CEYU
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Patent Information

Application Number
US19/088987
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-10-01

AI Technical Summary

Technical Problem

Since rigid materials (such as gaskets, sealing caps, or adhesives) lack elasticity and cannot accommodate the expansion of the ferrofluid or carrier liquid (water), this will ultimately cause the container to rupture.

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Abstract

Disclosed in the present disclosure is a container for loading ferrofluid and carrier liquid thereof, including: a bottle body having an accommodating chamber configured to contain the ferrofluid and the carrier liquid thereof; a bottle spout disposed at a top of the bottle body, the bottle spout defining a large opening; a soft rubber plug sealing the large opening of the bottle spout, the soft rubber plug being internally provided with a cavity; and the cavity is in fluid communication with the accommodating chamber through an internal valve. By sealing the large opening of the bottle spout with a soft rubber plug containing an expandable and contractible cavity, the cavity provides buffer space for thermal expansion of the ferrofluid and the carrier liquid thereof, thereby preventing container rupture.
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Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of containers, and in particular to a container for loading ferrofluid and carrier liquid thereof.BACKGROUND

[0002] Ferrofluid, also known as magnetic liquid, is a novel functional material. Current commercial products utilizing ferrofluid include: ferrofluid audio systems, ferrofluid sound pickup lamps, ferrofluid Bluetooth speakers, ferrofluid dynamic actuators, ferrofluid clocks, etc. Some of these products also incorporate electromagnetic components that control magnetic field variations based on electrical signals, audio pickups, and circuit boards. The ferrofluid is suspended in a carrier liquid (typically water), encapsulated within containers, and positioned within the magnetic field range generated by the electromagnetic components. The electromagnetic components and audio pickups are electrically connected to the circuit board. The ferromagnetic fluid display device incorporates sound pickup functionality, enabling direct control of the magnetic field variations in the electromagnetic components based on ambient environmental sounds, thereby causing the ferrofluid to respond and pulsate in sync with the surrounding audio.

[0003] During operation, the ferrofluid container is equipped with electromagnetic components on its sidewalls. The sealing materials of the ferrofluid container typically include rigid material gaskets, sealing covers, or adhesive seals. Prolonged energized use of the electromagnetic components generates heat, leading to an increase in the temperature of the ferrofluid container and resulting in thermal expansion: 1. The carrier liquid (water) heats up, generates thermal energy, and expands over time. 2. The ferrofluid also expands due to its pulsating motion under the influence of the magnetic field. In summary, both the carrier liquid (water) and the ferrofluid inside the container inevitably expand when subjected to temperature increases. Since rigid materials (such as gaskets, sealing caps, or adhesives) lack elasticity and cannot accommodate the expansion of the ferrofluid or carrier liquid (water), this will ultimately cause the container to rupture. Such a scenario poses a safety hazard, particularly posing significant risks to children who use this type of product. Additionally, when the ferrofluid and the carrier liquid thereof (water) contract upon cooling, bubbles will form inside the container. The contact between the ferrofluid and the bubbles causes qualitative changes in the ferrofluid, while the bubbles also compromise visual aesthetics. Rigid containers (e.g., glass) sealed with rigid materials may rupture due to a significant pressure differential created when the liquid contracts during cooling.

[0004] To address this, a new type of container has been developed. It utilizes a soft, flexible, and resilient gasket with elastic functionality. The bottle cap is designed with through-holes on its outer surface that connect to a recessed cavity, allowing the gasket to expand outward during thermal expansion. This design enables the gasket to freely stretch and contract, creating additional space to accommodate the expansion of the ferrofluid and carrier liquid (water) within the accommodating chamber. As a result, the risk of container rupture is significantly reduced, minimizing potential harm to users and greatly extending the product's operational lifespan.

[0005] However, in such a container structure, when the ferrofluid and the carrier liquid thereof (water) contract upon cooling, bubbles will form inside the container. The contact between the ferrofluid and these bubbles leads to qualitative changes in the ferrofluid, while the bubbles also compromise the product's overall aesthetic appearance. Therefore, it is necessary to develop a solution to address the aforementioned issues.SUMMARY

[0006] In view of this, the present disclosure addresses the deficiencies in the prior art. The primary objective is to provide a container for loading ferrofluid and carrier liquid thereof (water), which effectively resolves the issues of rupture and bubble formation that frequently occur in conventional containers during the thermal expansion and contraction of the ferrofluid and the carrier liquid thereof (water).

[0007] To achieve the aforementioned objectives, the present disclosure adopts the following technical solutions:

[0008] A container for loading ferrofluid and carrier liquid thereof, including: a bottle body having an accommodating chamber configured to contain the ferrofluid and the carrier liquid thereof; a bottle spout disposed at a top of the bottle body, the bottle spout defining a large opening in communication with the accommodating chamber; a soft rubber plug sealing the large opening of the bottle spout, the soft rubber plug being internally provided with an expandable and contractible cavity; and an internal valve embedded in the large opening, the cavity being in fluid communication with the accommodating chamber through the internal valve.

[0009] In some implementations, the soft rubber plug includes a fixing portion and a main body portion, the fixing portion is sleeved over and fixed to an outer side of the bottle spout, the main body portion integrally extends upward from the fixing portion, and the cavity is located within the main body portion.

[0010] In some implementations, the internal valve is separately arranged from the soft rubber plug, upper and lower end surfaces of the internal valve are penetrated by a small opening having an inner diameter smaller than that of the cavity, the small opening providing fluid communication between the accommodating chamber and the cavity.

[0011] In some implementations, the internal valve is integrally connected with the soft rubber plug, upper and lower end surfaces of the internal valve are penetrated by a small opening having an inner diameter smaller than that of the cavity, the small opening providing fluid communication between the accommodating chamber and the cavity.

[0012] In some implementations, a clamping ring is sleeved over an outer side of the fixing portion and clamps the fixing portion onto the bottle spout through riveting.

[0013] In some implementations, the fixing method further includes such as bonding, threaded cap screwing, and clamping.

[0014] In some implementations, the bottle body is made of a transparent glass material and has an oblate circular structure.

[0015] In some implementations, the bottle may be made of plastic or other materials, and the shape thereof include but are not limited to cylindrical, triangular, and so on.

[0016] Compared to the prior art, the present disclosure demonstrates significant advantages and beneficial effects. Specifically, as revealed by the aforementioned technical solutions:

[0017] By sealing the large opening of the bottle spout with a soft rubber plug containing an expandable and contractible cavity, the cavity provides buffer space for thermal expansion of the ferrofluid and the carrier liquid thereof, thereby preventing container rupture. Simultaneously, with the integrated internal valve, when the ferrofluid and the carrier liquid thereof contract upon cooling and generate bubbles, the bubbles are blocked and retained within the cavity by the internal valve, preventing the bubbles from entering the accommodating chamber. This prevents qualitative degradation caused by contact between bubbles and the ferrofluid in the accommodating chamber, while maintaining aesthetic integrity by keeping bubbles out of the chamber, thereby fulfilling practical usage requirements.BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG. 1 is an assembled perspective schematic diagram of a first embodiment of the present disclosure;

[0019] FIG. 2 is an exploded view of the first embodiment of the present disclosure;

[0020] FIG. 3 is a cross-sectional view of the first embodiment of the present disclosure;

[0021] FIG. 4 is an assembled perspective schematic diagram of a second embodiment of the present disclosure;

[0022] FIG. 5 is an exploded view of the second embodiment of the present disclosure;

[0023] FIG. 6 is a cross-sectional view of the second embodiment of the present disclosure.Illustration of the accompanying labels:10 bottle body11 accommodating chamber12 bottle spout101 large opening20 soft rubber plug21 fixing portion22 main body portion201 cavity30 internal valve31 small opening40 clamping ringDETAILED DESCRIPTION

[0024] Referring to FIGS. 1 to 3, there is shown a specific structure of a first embodiment of the present disclosure including a bottle body 10.

[0025] The bottle body 10 is made of a transparent glass material and has an oblate circular structure. The bottle body 10 has an accommodating chamber 11 configured to contain the ferrofluid and the carrier liquid thereof. A bottle spout 12 is disposed at a top of the bottle body 10, and the bottle spout 12 defines a large opening 101 in communication with the accommodating chamber 11. A soft rubber plug 20 seals the large opening 101 of the bottle spout 12, and the soft rubber plug 20 is internally provided with an expandable and contractible cavity 201. An internal valve 30 embedded in the large opening 101, and the cavity 201 is in fluid communication with the accommodating chamber 11 through the internal valve 30.

[0026] Specifically, the soft rubber plug 20 includes a fixing portion 21 and a main body portion 22, the fixing portion 21 is sleeved over and fixed to an outer side of the bottle spout 12, the main body portion 22 integrally extends upward from the fixing portion 21, and the cavity 201 is located within the main body portion 22. In the present embodiment, the internal valve 30 is separately arranged from the soft rubber plug 20, upper and lower end surfaces of the internal valve 30 are penetrated by a small opening 31 having an inner diameter smaller than that of the cavity 201, the small opening 31 providing fluid communication between the accommodating chamber 11 and the cavity 201. Additionally, a clamping ring 40 is sleeved over an outer side of the fixing portion 21 and clamps the fixing portion 21 onto the bottle spout 12 through riveting.

[0027] The method of using this embodiment is described in detail as follows:

[0028] First, fill the ferrofluid and the carrier liquid thereof into the accommodating chamber 11 through the large opening 101. Next, embed the internal valve 30 into the large opening 101. Then, fit the fixing portion 21 over the bottle spout 12 and secure it by mounting a clamping ring 40 around the fixing portion 21, thereby riveting and fixing the fixing portion 21 to the bottle spout 12. When the ferrofluid and the carrier liquid thereof expand due to heat, the ferrofluid, carrier liquid thereof, and gases can enter the cavity 201 through the small opening 31, causing the main body portion 22 to expand. This effectively prevents the bottle body 10 from rupturing. When the ferrofluid and the carrier liquid thereof contract due to cooling, gases within the cavity 201 flow back into the accommodating chamber 11 through the small opening 31. At this point, the cavity 201 contracts, while the internal valve 30 blocks bubbles from entering the accommodating chamber 11, thus preventing bubbles from affecting the product's appearance within the accommodating chamber 11.

[0029] Referring to FIGS. 4 to 6, there is shown a specific structure of a second embodiment of the present disclosure. The specific structure of this embodiment is essentially the same as that of the aforementioned first embodiment, which differs in that:

[0030] In the present embodiment, the internal valve 30 is integrally connected with the soft rubber plug 20, upper and lower end surfaces of the internal valve 30 are penetrated by a small opening 31 having an inner diameter smaller than that of the cavity 201, the small opening 31 providing fluid communication between the accommodating chamber 11 and the cavity 201.

[0031] The method of using this embodiment is essentially the same as that of the aforementioned first embodiment, and the method of using this embodiment is not described in detail herein.

[0032] The key design focus of the present disclosure lies in: sealing the large opening of the bottle spout with a soft rubber plug, in which the soft rubber plug contains an expandable and contractible cavity. This cavity provides a buffer space for the thermal expansion of the ferrofluid and the carrier liquid thereof, thereby preventing bottle rupture. Simultaneously, with the integrated internal valve, when the ferrofluid and the carrier liquid thereof contract upon cooling and generate bubbles, the bubbles are blocked and retained within the cavity by the internal valve, preventing the bubbles from entering the accommodating chamber. This prevents qualitative degradation caused by contact between bubbles and the ferrofluid in the accommodating chamber, while maintaining aesthetic integrity by keeping bubbles out of the chamber, thereby fulfilling practical usage requirements.

[0033] The technical principles of the present disclosure have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the present disclosure and should not be construed in any way as limiting the scope of protection of the present disclosure. Based on the explanations herein, those skilled in the art may conceive of other specific implementations of the present disclosure without exercising inventive effort, and such implementations shall fall within the scope of protection of the present disclosure.

Claims

1. A container for loading ferrofluid and carrier liquid thereof, comprising:a bottle body having an accommodating chamber configured to contain the ferrofluid and the carrier liquid thereof;a bottle spout disposed at a top of the bottle body, the bottle spout defining a large opening in communication with the accommodating chamber;a soft rubber plug sealing the large opening of the bottle spout, the soft rubber plug being internally provided with an expandable and contractible cavity; andan internal valve embedded in the large opening, the cavity being in fluid communication with the accommodating chamber through the internal valve.

2. The container for loading ferrofluid and carrier liquid thereof according to claim 1, wherein the soft rubber plug comprises a fixing portion and a main body portion, the fixing portion is sleeved over and fixed to an outer side of the bottle spout, the main body portion integrally extends upward from the fixing portion, and the cavity is located within the main body portion.

3. The container for loading ferrofluid and carrier liquid thereof according to claim 2, wherein the internal valve is separately arranged from the soft rubber plug, upper and lower end surfaces of the internal valve are penetrated by a small opening having an inner diameter smaller than that of the cavity, the small opening providing fluid communication between the accommodating chamber and the cavity.

4. The container for loading ferrofluid and carrier liquid thereof according to claim 2, wherein the internal valve is integrally connected with the soft rubber plug, upper and lower end surfaces of the internal valve are penetrated by a small opening having an inner diameter smaller than that of the cavity, the small opening providing fluid communication between the accommodating chamber and the cavity.

5. The container for loading ferrofluid and carrier liquid thereof according to claim 2, wherein a clamping ring is sleeved over an outer side of the fixing portion and clamps the fixing portion onto the bottle spout through riveting.

6. The container for loading ferrofluid and carrier liquid thereof according to claim 1, wherein the bottle body is made of a transparent glass material and has an oblate circular structure.