JP2021041031A - Electric hot water bottle with pressure control device - Google Patents

Abstract

To provide an electric hot water bottle with a pressure control device.SOLUTION: An electric hot water bottle comprises a main body and a mounting base 2. A heating device and a pressure control device are fixed to the mounting base. The pressure control device comprises a relay switch 7, a silica gel pressing member 8 and a lid body 9. The silica gel pressing member is mounted to the mounting base through the lid body. The relay switch is positioned right under the silica gel. The pressure control device of the present invention detects the gas pressure in the main body in real time, and pushes down the relay switch by an elastic pressing member such as the silica gel when the pressure is too large, and thereby cuts off the circuit automatically.SELECTED DRAWING: Figure 1

Description

The present invention relates to the field of household electric appliances, and specifically to an electric hot water bottle provided with a pressure control device.

Electric hot water bottles are a soft fit device that warms the body, is also a suitable thermal treatment product, and is accepted on the market. The main body of a conventional electric hot water bottle is generally manufactured by organically sealing and joining a high-temperature resistant plastic film and a high-strength composite fiber. An energy storage medium with a large heat capacity is stored inside, and a tubular heat-generating member realizes the functions of heat retention and hyperthermia. However, when the energy storage medium is heated by the tubular heating member, a large amount of gas is always generated, so the manufacturer must take protective measures such as temperature control device, explosion prevention holder, fuse, etc. to prevent accidents. It doesn't become. However, due to improper use or unexpected occurrence in the external environment, the explosion prevention holder can no longer play a protective role, and an electric hot water bottle may explode, which poses a safety risk. Exists. In addition, media leaks have also been caused to contaminate futons and clothing.

An object of the present invention is to provide an electric hot water bottle provided with a pressure control device in order to eliminate defects in the prior art.

The technical solutions used in the present invention are as follows.

An electric hot water bottle including a pressure control device, which includes a main body and a mounting base, a heating device and a pressure control device are fixed to the mounting base, and the pressure control device includes a contact switch, a silica gel pressing member, and a lid. The silica gel pressing member is attached to the mounting base via the lid, and the contact switch is located directly below the silica gel.

As a further optimization of the above technical solution, an electric outlet fixing board is attached to the mounting base, an electric outlet, a circuit board and a water injection pipe are attached to the electric outlet fixing board, and the heating device is heated. The contact switch includes a controller and a heating pad, the contact switch is mounted on the circuit board, the silica gel pressing member includes a pillar and a mounting ring at the end of the pillar, and the lid is an annular hollow body. The mounting ring is located inside the lid.

As a further optimization of the above technical solution, the central portion of the mounting ring is recessed and has a reverse taper structure.

As a further optimization of the above technical solution, an outlet base cover is further fitted to the outside of the electric outlet fixing board, and both the electric outlet fixing board and the outlet base cover are provided with outlet holes. , Locking slots are provided on both front and rear sides of the electric outlet fixing board, and further protruding locking blocks are provided on both front and rear sides of the electric outlet fixing board. A groove is provided at the corresponding position on the inside of the.

As a further optimization of the technical solution, the temperature controller has a height of 8.5 centimeters.

As a further optimization of the above technical solution, a long pattern that intersects with each other is provided on the surface of the main body.

Compared with the prior art, the temperature control device of the present invention detects the gas pressure in the main body in real time, and when the pressure is too large, the contact switch is pressed by the silica gel pressing member to automatically shut off the circuit, which is unexpected. Greatly avoids the occurrence of situations and is more secure.

It is the schematic which shows the explosive structure of the mounting base which concerns on this invention. It is the schematic which shows the three-dimensional structure of one Example of the main body which concerns on this invention. It is the schematic which shows the three-dimensional structure of another Example of the main body which concerns on this invention. It is the schematic which shows the three-dimensional structure of another Example of the pressure control device which concerns on this invention. It is the schematic which shows the explosive structure shown in FIG.

Hereinafter, the present invention will be further described with reference to the drawings and embodiments for carrying out the invention.

Example 1
As shown in FIG. 1-3, the electric hot water bottle includes a main body 11, a mounting base 2 at the end of the main body 11, and an electric outlet fixing board 12 on the mounting base 2, and the electric outlet 6 is attached to the electric outlet fixing board 12. , The circuit board 4 and the water injection pipe 3 are attached, the heating device is fixed to the mounting base 2, and the heating device includes a temperature controller 10 and a heating pad 1. The heating pad 1 generates more uniform heat and generates a small amount of air bubbles. Further comprising a pressure control device, the pressure device includes a contact switch 7, a silica gel pressing member 8 and a lid 9, the contact switch 7 is attached to the circuit board 4, and the silica gel pressing member 8 is a column 81. The lid 9 includes an annular hollow body including a mounting ring 82 at the end of the pillar 81, and the mounting ring 82 is located inside the lid 9. The silica gel pressing member 8 is attached to the mounting base 2 via the lid 9. The attached pillar 81 is located directly above the contact switch 7. Since a small amount of air bubbles are generated during heating by the heating pad, if the temperature controller 10 fails, the power cannot be immediately turned off during heating. Therefore, if the heating time is too long, the bubbles in the upper part of the main body 11 gradually increase, a constant pressure acting on the silica gel pressing member 8 is generated, and the pillar 81 of the silica gel pressing member 8 moves downward to switch the contact switch. Touch 7 to turn off the power and prevent the occurrence of unexpected situations.

In the above technical solution, the central portion of the attachment ring 82 is recessed and has a reverse taper structure.

In the above technical solution, as shown in FIG. 4, an outlet base cover 5 is further fitted to the outside of the electric outlet fixing boat 12, and both the electric outlet fixing board 12 and the outlet base cover 5 are outlets. Holes are provided, locking slots 121 are provided on both front and rear sides of the electric outlet fixing board 12, and the outlet base cover 5 plays a role of dustproofing the electric outlet 6.

In the above technical solution, further projecting locking blocks 122 are provided on both front and rear sides of the electric outlet fixing board 12, and one end surface of the locking block 122 becomes a slope, and a corresponding position inside the mounting base 2. Is provided with a concave groove. The electric outlet fixing board 12 and the mounting base 2 are assembled by fitting the locking block 122 and the concave groove. With this structure, the electric outlet board 12 can be removed, which facilitates maintenance.

In the above technical solution, the height of the temperature controller 10 is most preferably 8.5 cm. The temperature controller 10 is arranged in the central part of the region for accommodating water in the main body 11. When heating, the temperature at the top of the heating pad 1 is high and the temperature at the bottom is low, but the temperature sensed at that height is the most stable and is closest to the actual water temperature, so the temperature measurement is accurate. .. Because of this dimension, the weight of the main body 11, the accessories on the main body and the inside of the main body, and water is easy for an adult to hold with one hand, and easy for a child to hold with both hands.

In the above technical solution, the main body 11 is made of silica gel. Silica gel has moderate flexibility and a certain degree of plasticity, but its shape is relatively fixed and the expansion space is extremely limited, so that a conventional tubular heating member is heated by generating a small amount of air bubbles. Improved to pad 1. Silica gel is prized because it has moderate flexibility, is comfortable to the touch, lowers the ambient temperature, gives a comfortable feeling to the touch, and increases the motivation to touch without stopping. ..

In the above technical solution, as shown in FIG. 3, a long pattern that intersects with each other is formed on the surface of the main body 11 and may be freely pressed.

The assembly process of the vertical electric hot water bottle of the present invention is as follows. First, the mounting base 2 is manufactured, and then the temperature controller 10, the heating pad 1, the silica gel pressing member 8 of the pressure control device, and the lid 9 are mounted on the mounting base 2. Subsequently, the main body 11 is directly injection-molded on the mounting base 2. After molding, the mounting base 2 and the main body 11 cannot be removed, the sealing property is high, and water leakage can be avoided. In the present invention, a plurality of annular locking slots are provided on the outer periphery of the mounting base 2, and a plurality of annular locking slots corresponding to them are provided inside the injection-molded main body 11 end portion to improve the sealing property. .. Further, the contact switch 7, the circuit board 4, the electric outlet 6, and the water injection pipe 3 are attached to the circuit board mounting board 12, and the circuit board 12 is locked in the mounting base 2 via the locking block 122. Finally, the outlet base cover 5 is fitted to the electric outlet fixing board 12, and the assembly of the electric hot water bottle is completed.

Example 2
As shown in FIGS. 4 and 5, the difference from the first embodiment is the structure of the pressure control device. Other structures are the same.

The pressure control device includes a gas pressure switch upper housing 163, a PVC pressing pad 165, a gas pressure switch lower housing 161, a gas pressure protection switch 164, and a circuit board 162. A PVC pressing pad 165 is provided below the gas pressure switch upper housing 163, and the gas pressure switch lower housing 161 fits into the gas pressure protection switch 164. The housing 161 under the gas pressure switch and the mounting base 2 are designed to be integrated.

A hole is provided in the housing 163 on the gas pressure switch.

When the pressure inside the main body 11 rises, it acts on the PVC pressing pad 165, presses the gas pressure protection switch 164 inside it downward, turns off the power of the heating device, ends heating, and the gas pressure continues. Avoid rising.

The preferred embodiments of the present invention will be described in detail above. It should be understood that one of ordinary skill in the art can make multiple modifications and variants based on the concept of the present invention without spending creative effort. Therefore, it goes without saying that any of the technical solutions obtained by those skilled in the art through logical analysis, reasoning or finite experiment based on the prior art based on the idea of the present invention is included in the scope of protection of the present invention. is there.

1 heating pad, 11 main body, 12 electric outlet fixing board, 121 locking slot, 122 locking block, 13 outlet bottom plate, 14 power cord, 15 outlet cover, 2 mounting base, 3 water injection pipe, 4 circuit board, 5 outlet base Cover, 6 electrical outlet, 7 contact switch, 8 silica gel pressing member, 81 pillar, 82 mounting ring, 9 lid, 10 temperature controller, 163 gas pressure switch upper housing, 165 PVC pressing pad, 161 gas pressure switch lower housing 164 gas pressure protection switch, 162 circuit board

Claims (8)

An electric hot water bottle equipped with a pressure control device
A main body (11) and a mounting base (2) are included, and a heating device and a pressure control device are fixed to the mounting base (2), and the pressure control device includes a contact switch (7), a silica gel pressing member (8), and a pressure control device. The silica gel pressing member (8) including the lid (9) is attached to the mounting base (2) via the lid (9), and the contact switch (7) is directly below the silica gel (8). The electric hot water bottle characterized by being located. An electric outlet fixing board (12) is attached to the mounting base (2), an electric outlet (6), a circuit board (4) and a water injection pipe (3) are attached to the electric outlet fixing board (12), and the heating is performed. The apparatus includes a temperature controller (10) and a heating pad (1), the contact switch (7) is attached to the circuit board (4), and the silica gel pressing member (8) is a pillar (81). , The mounting ring (82) at the end of the pillar (81), the lid (9) is an annular hollow body, and the mounting ring (82) is located inside the lid (9). The electric hot water bottle according to claim 1, which is a feature. The electric hot water bottle according to claim 2, wherein the central portion of the mounting ring (82) is recessed and has an inverted tapered structure. An outlet base cover (5) is further fitted to the outside of the electric outlet fixing board (12), and both the electric outlet fixing board (12) and the outlet base cover (5) are provided with outlet holes. Locking slots (121) are provided on both front and rear sides of the electric outlet fixing board (12), and further protruding locking blocks (122) are provided on both front and rear sides of the electric outlet fixing board (12). The electric hot water tank according to claim 2, wherein one end surface of (122) is an inclined surface, and a concave groove is provided at a corresponding position inside the mounting base (2). The vertical electric hot water bottle according to claim 2, wherein the temperature controller (10) has a height of 8.5 cm. The vertical electric hot water bottle according to claim 1, wherein long patterns that intersect each other are provided on the surface of the main body (11). An electric hot water bottle equipped with a pressure control device
A main body (11) and a mounting base (2) are included, and a heating device and a pressure control device are fixed to the mounting base (2). 165), including a gas pressure switch lower housing (161), a gas pressure protection switch 164 and a circuit board 162, a PVC pressing pad 165 is provided below the gas pressure switch upper housing 163, and the gas pressure switch lower housing 161 is gas pressure. The electric hot water tank, which is fitted with a protection switch 164 and is designed so that the housing (161) under the gas pressure switch and the mounting base (2) are integrated. The electric hot water bottle including the pressure control device according to claim 7, wherein the housing (163) on the gas pressure switch is provided with a hole.

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