JPS624271Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field This invention relates to an electric pot that uses a heating element to heat a liquid in a container.

Conventional configuration and its problems Conventionally, this type of electric pot has a configuration in which air is forced into the container by the compression operation of the bellows, and the hot water in the container is poured out using this air pressure. , hot water can be obtained without tilting the pot itself, but the temperature of the poured hot water will drop as the heat is taken away by the cup or other receiving container, especially when brewing coffee, tea, etc. This caused inconveniences such as having to heat the receiving container. Furthermore, there was a problem in that the temperature of the hot water (coffee, tea, etc.) that was poured out decreased over time.

Hereinafter, the above-mentioned conventional electric pot will be explained with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a cylindrical container with a bottom, and a band-shaped main heater 2 and an auxiliary heater 3 are integrally attached to the outer periphery of the bottom of the container 1. 4
is a main temperature regulator provided above the heaters 2 and 3 on the outer periphery of the container 1, and controls energization of the main heater 2. Reference numeral 5 denotes an auxiliary temperature regulator, such as a thermal reed switch (TRS), which is press-fitted together with a temperature overrise prevention device 7 by a presser spring 6 on the back surface of the bottom of the container 1, and controls the energization of the auxiliary heater 3. Further, a flange portion 8 extending in the outer circumferential direction is provided at the upper end of the container 1, and a spout 10 is provided via a container packing 9. 11 is spout 1
This body 11 is a body on which container 1 is placed.
It is formed into a cylindrical shape to cover the.

12 is an inner lid placed on the flange portion 8 of the container 1 via a seal packing 13;
a valve seat 15 located approximately in the center of the container 1 and housing a valve 14 to prevent liquid from flowing out in the event of a fall; and a water rising pipe that extends from the valve seat 15 to the inner bottom of the container 1 and has an open tip. 16 and a spouting pipe 18 which extends outward from the valve seat 15 to the outside of the container 1 and has a discharge port 17 at its tip, and is integrally formed with the inner lid main body 19. are doing. Reference numeral 20 denotes a decorative frame provided on the back surface of the inner lid main body 19, and this decorative frame 20 locks the seal packing 13 to the inner lid 12.

Reference numeral 21 denotes an upper lid which can be opened and closed by a pivot 22 at the rear of the spout 10, and a bellows 23 is installed approximately in the center of the upper lid 21. This bellows 2
A return spring 24 is installed inside the return spring 24, and a check valve 26 is provided in a cylindrical portion 25 having an upper opening above the return spring 24 so as to be pushed open by a valve spring 27. Reference numeral 28 denotes a pressing body which is pressed upward by the return spring 24 and the valve spring 27, and this pressing body 28 is lowered by pushing it by hand against the spring force of the respective springs 24 and 27. It can be raised and lowered freely.
29 is a protection plate for bellows 23, 30 is bellows 2
This is the lid cover of the upper lid 21 that is engaged with the boss 31 at the bottom of No. 3. Further, a lid packing 32 is provided at the lower end of the boss portion 31 of the bellows 23, and this lid packing 32 is attached to the inner lid 1 when the upper lid 21 is closed.
The bellows 23 contacts and communicates with an air hole 33 provided approximately at the center of the inner lid main body 19 constituting the container 1.
communicate with the inside.

34 is a lifting/lowering regulating lever for the pressing body 28; 35
indicates the lock lever when the upper lid 21 is closed. 36
38 indicates a water level gauge that communicates with a water pipe 37 extending outward from the upper and lower sides of the container 1 to read the water level, and 38 indicates a hakama provided in contact with the lower end of the body 11. Moreover, 39 is a plug receiver provided at the lower end of the body 11, and is provided with an instrument plug 40 in a detachable manner.

Regarding the electric pot configured as above,
The operation will be explained below.

When a certain amount of water is put into the container 1 and electricity is started, the main heater 2 and the auxiliary heater 3 start boiling the water in the container 1. When the boiling of the water progresses and reaches the set temperature of the main temperature regulator 4, the power to the main heater 2 is cut off by the operation of the main temperature regulator 4. Furthermore, the auxiliary temperature regulator 5 also operates before and after the operation of the main temperature regulator 4, but the temperature range until the auxiliary temperature regulator 5 operates again is narrow, and due to a drop in the water temperature in the container 1, the auxiliary temperature regulator 5 operates. Only heater 5 is operated again and power supply to auxiliary heater 3 is restarted. Here, the heat generation capacity of the auxiliary heater 3 is set to be slightly smaller than that of the main heater 2. Therefore, the temperature of the hot water in container 1 rises slowly. Thereafter, by repeating this process, the water (hot water) in the container 1 is kept at an appropriate temperature.

Next, when hot water is needed, press the pressing body 28 of the upper lid 21. This pressing compresses the bellows 23 and forces air into the container 1. The hot water in the container 1 is pressed by this air pressure, and the water rising pipe 16
It is discharged from the discharge port 17 via the discharge port 17.

However, although the discharged hot water was kept at an appropriate temperature in the container 1, the heat was taken away by the receiving container etc. and the temperature dropped, making coffee, tea, etc. taste bad.

Purpose of the Invention In view of the above-mentioned conventional drawbacks, the object of the present invention is to provide an electric pot that can keep the discharged heated liquid at an appropriate temperature.

Structure of the Invention In order to achieve the above object, the electric pot of the present invention includes a bottomed cylindrical container containing a liquid to be heated, a heating element that heats the liquid to be heated, and a heating element that is connected to one side at the bottom of the container. a pump device for discharging the heated liquid in the container through the discharge device; A heat retention and heating device for the liquid to be heated discharged from the discharge device is provided so as to be able to appear and retract freely. According to this configuration, the liquid to be heated discharged from the container is transferred to the heat retention and heating device through a receiving container such as a cup. Therefore, it is possible to keep the temperature at an appropriate temperature.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 4. Note that in FIGS. 2 to 4, the same parts as in FIG. 1 shown in the conventional example are given the same numbers, and only the points different from the conventional example will be explained. In these figures 2 to 4,
Reference numeral 50 denotes a hakama provided in contact with the lower end of the body 11, and a heat insulating plate 52 is slidably provided on a guide surface 51 of the hakama 50. This heat insulating plate 52 has an opening 54 at the top of the heat insulating plate main body 53.
A heat insulating plate 56 and a heat insulating heater 57 are attached from the inside through a plate packing 55 while being biased by a biasing spring 58. 59 is a heat insulation plate 52
The back plate 60 is an electrical contact provided on the heat insulating plate main body 53 and electrically connected to one of the heat insulating heaters 57, and this electrical contact 60 slides the heat insulating plate 52 to a predetermined position in front. At this time, the contact spring 61 provided in the hakama 50 is short-circuited to close the electric circuit of the heat-retaining heater 57. Further, the heat insulating plate 52 is dimensioned and shaped so that it is almost housed within the hakama 50 when slid backward.

Reference numeral 62 denotes a strainer provided below the discharge port 17 by being engaged with a hook 64 of the display plate 63, and a valve 67 is provided in the bottom opening 66 of the strainer body 65.
The valve 67 is slid by a dispensing knob 71 which rotates a lever 68 via a cam 70 against the spring force of a lever spring 69 to open and close the opening 66 . Reference numeral 72 denotes a mesh filter that is locked to a locking piece 74 of the lid 73.

FIG. 5 is an electrical circuit diagram of an electric pot, which includes a main heater 2, a main temperature regulator 4, an auxiliary heater 3 and an auxiliary temperature regulator 5, and a switch composed of a heat retaining heater 57, an electric contact 60, and a contact spring 61. The respective series circuits are connected in parallel and are connected to a power supply via an overtemperature rise prevention device 7.

Regarding the electric pot configured as above,
The operation will be explained below.

As with the conventional example, after a certain period of time has passed, the water boiling is completed and the water is kept warm. Here, when attempting to brew tea, black tea, coffee, etc., the heat retaining plate 52 housed in the hakama 50 is pulled out forward. Then, when the positioning is completed using a stopper or the like and the pulling out to the fixed position is completed, the contact spring 6 is attached to the electrical contact 60.
1 comes into contact, the electric circuit of the heat-retaining heater 57 is closed, and energization is started. In this state, tea, black tea, coffee, etc. is poured into the filter 72 of the strainer 62, and a cup or the like is placed on the heat insulating plate 56 of the heat insulating plate 52 located below the opening 66 provided on the bottom of the strainer body 65. The preparation is completed by placing the container 75.

Next, the valve 67 is closed by rotating the spouting knob 71 of the strainer 62 and set to "closed", and the bellows 23 is compressed by pressing the pressing body 28, so that the bellows 23 is discharged from the discharge port 17 to the filter 72. When hot water is poured, tea, black tea, coffee, etc. are filtered by a filter 72 and stored in a filter main body 65. After that, adjust the pouring knob 71 according to the extraction conditions of the extract.
The dispensing speed is controlled by a rotation operation, for example, "half open" or "open", and the dispensing is completed by dripping into the receiving container 75. The extract in the receiving container 75 is kept at an appropriate temperature by the heat insulating heater 57 via the heat insulating plate 56, so that it can be served deliciously.

As described above, according to the present embodiment, since the heat insulating plate 52 is provided which is slidable inside the hakama 50 and can be energized to the heat insulating heater 57 only when it is pulled out in a fixed position, it can be used for tea, tea, coffee, etc. Not only can the heat insulating plate 52 be kept at an appropriate temperature, but it can be stored in the hakama 50 when it is not needed, and the heat insulating heater 57 is energized only when the drawer is completed, so it is highly safe.

FIGS. 6 and 7 show other embodiments of the present invention, and as shown in FIG. 6, the heat insulating plate 81 housed in the hakama 80 may be configured to be horizontally rotatable. Further, as shown in FIG. 7, a heat insulating plate 83 housed in a hakama 82 is rotated in the vertical direction, and a cam or the like is provided on the rotating surface 84 to provide an energization switch 85 for the heat insulating plate. Similarly, when the heat insulating plate 83 is located below the discharge port,
A similar effect can be obtained even if the device is energized.

It goes without saying that the heat retention performance of the extract can be improved by providing an automatic temperature regulator that controls the energization of the heat insulating heater as a temperature sensor on the back side of the heat insulating plate to adjust the temperature of the heat insulating plate.

Further, the strainer may be used by placing a known substantially conical strainer in the receiving container 75, or the same effect can be obtained by immersing a mesh filter in the receiving container 75 for extraction. Needless to say.

Effects of the Invention As described above, the present invention includes a cylindrical container with a bottom, a heating element that heats the liquid to be heated contained in the container, one of which is opened at the bottom of the container, and the other of which is connected to the container. a heated liquid discharge device having an outward opening;
This discharge device has a pump device for discharging the liquid to be heated, and a heating device for keeping the heated liquid discharged from the discharge device is removably provided at the lower part of the container. It can keep the liquid to be heated at an appropriate temperature and serve it deliciously, and its practical value is great.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a conventional electric pot, Fig. 2 is a sectional view of an electric pot showing an embodiment of the present invention, Fig. 3 is a sectional view of the main part of the same electric pot, and Fig. 4 is a sectional view of the same electric pot. 5 is an electric circuit diagram of the same electric pot, and FIGS. 6 and 7 are sectional views of essential parts of the electric pot showing other embodiments of the present invention. 1... Container, 2... Main heater, 16... Water rising pipe, 18... Output pipe, 23... Bellows, 52... Heat retention plate, 57... Heat retention heater.

Claims (1)

[Scope of utility model registration request] A cylindrical container with a bottom that accommodates a liquid to be heated, a heating element that heats the liquid to be heated, and a discharge of the liquid to be heated with one side opened at the bottom of the container and the other side opened outside the container. and a pump device for discharging the liquid to be heated in the container through the discharge device, and a heat retention and heating device for the liquid to be heated discharged from the discharge device is removably attached to the lower part of the container. Electric pot provided.