JPS6038111Y2 - Bathtub with convection device - Google Patents

Description

[Detailed description of the invention] This invention relates to a bathtub with a convection device.The purpose of this invention is to be able to select either forced convection or natural convection for the bath water by switching the cock, and to use a small fan motor to generate the force. To provide a bathtub with a convection device which can take out bath water well and make the temperature of the water uniform.

Hereinafter, the present invention will be explained in detail based on examples.

A circulation pipe 3 circulates the bath water 1, and is composed of a suction pipe 3a and a discharge pipe 3b.

One end of the suction pipe 3a and the discharge pipe 3b is opened into the bathtub 4, and the suction pipe 3a and the discharge pipe 3
The other end of b is connected to the heat exchanger 2.

11 is a burner. 10 is a forced circulation device interposed in the suction pipe 3a, through which a natural circulation path 5 and a forced circulation bypass path 6 are installed.

A portion of the bypass path 6 is a closed structure that is closed by a plate 12.

A fan motor 7 is attached to the plate 12,
A fan 13 is disposed within the bypass passage 6.

Each inlet 14.15 of the natural circulation path 5 and the bypass path 6
are separated near the common inflow port 16 of the forced circulation device 10, and the respective outflow ports 17. of the natural circulation path 5 and the bypass path 6.
18 is a confluence near the common outflow port 19 of the forced circulation device 10.

A cock attachment hole 20 is bored on the outflow side of the bypass passage 6, and a switching cock 8 is rotatably attached to the cock attachment hole 20 to open and close the bypass passage 6.

21 is a through hole of the switching cock 8. fan motor 7
A branch passage 9 is provided on the wall of the bypass passage 6 between the switching cock 8 and the switching cock 8.
The bath water 1 flowing out from this branch passage 9 is used for showering, washing, etc.

Therefore, when the switching cock 8 is closed, the bath water 1 flowing through the suction pipe 3a of the circulation pipe 3 is caused by the temperature difference between the high temperature water heated by the heat exchanger 2 and the low temperature water at the bottom of the bathtub 4. 3 and the natural circulation path 5 of the forced circulation device 10, the bath water 1 undergoes natural convection.

Furthermore, when the switching cock 8 is opened and the fan motor 7 is driven, the bath water 1 is forced through the bypass passage 6 of the forced circulation device 10, and the bath water 1 is forcibly convected. The bath water 1 flowing out from the outlet 18 is forced to flow through the common outlet 19 of the forced circulation device 10 while also drawing the bath water 1 in the natural circulation path 5, so that even during forced circulation, the bath water 1 flows through the forced circulation device 10. 1 does not become smaller, and the forced circulation device 10 does not become larger.

Further, when the switching cock 8 is closed and the fan motor 7 is driven, the bath water 1 is supplied through the branch path 9 as water for showering or washing, and furthermore, the bath water 1 is allowed to circulate through the natural circulation path 5. It is.

22 is a bathroom wall. As described above, the present invention has both ends of a circulation pipe with a heat exchanger that circulates bath water opened into the bathtub, a forced circulation bypass path in the middle of the flow path of the circulation pipe, and a forced circulation bypass path on the inflow side of the bypass path. A fan was installed to forcefully pump the bath water, and a switching cock was installed on the outflow side of the bypass path, so the bath water flows through the circulation pipe, and due to the temperature difference between the high-temperature water passing through the heat exchanger and the low-temperature water at the bottom of the bathtub, , natural convection of the bath water is created, and when the fan motor is driven, the bath water is forcibly pumped through the bypass path, causing forced convection, and the bath water flowing out from the bypass path is circulated. Since the bath water in the pipe is pumped while also being drawn in, the flow rate of the forcedly circulated bath water does not decrease even if the diameter of the bypass path is small.As a result, it is possible to downsize the convection device, and it is possible to Since the branch path for taking out the bath water from the bypass path between the switching cocks is branched, when using the bath water in the bathtub, it can be taken out directly from the bypass, and the bath water can be taken out without passing through a heat exchanger. is possible,
The bath water can be taken out vigorously even though the fan and motor are small without reducing the pressure for taking out the bath water unnecessarily.

[Brief explanation of drawings]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is an enlarged front sectional view of the forced circulation device as described above, Fig. 3 is an exploded front sectional view of the forced circulation device as described above, Fig. 4a, bt c is a plan view, an outflow side side view, and an inflow side side view of the forced circulation device excluding the same plate, where 1 is bath water, 2 is a heat exchanger, 3 is a circulation pipe, 4 is a bathtub, and 6 is a bypass path, and 7 is a fan motor.

Claims (1)

[Scope of utility model registration request] Both ends of a circulation pipe with a heat exchanger that circulates bath water are opened into the bathtub, a forced circulation bypass path is provided in the middle of the flow path of the circulation pipe, and a fan is installed on the inflow side of the bypass path to forcefully feed the bath water. A bathtub with a convection device, in which a switching cock is provided on the outflow side of a bypass passage, and a branch passage for taking out bath water from the bypass passage between the fan and the switching cock is branched.