JPS594885A - Coil winding - Google Patents

Abstract

PURPOSE:To offer the compact heat exhcnager by a method wherein a tie-in part of a coil and a heater is formed alternatively in left and right, and in doulbe-level manner, on the axis of the header by overlapping alternatively each counter clockwise winding and colockwise winding spiral coils, while a spatial allowance at a connecting part of a coil end and the header is provided to facilitate the tying-in working of the coil and the header, also the pitchs between each coil are kept very closely or in proximity to each other. CONSTITUTION:A clockwise spiral coil 3 and an counter clockwise spiral coil 4 are alternatively overlapped to each other in coaxial state. An inner header is alternatively, in left and right, and in double-level manner, provided with perforating parts into which inner side end parts of each coil are inserted. An outer header 2 is alternatively, in left and right, and in double-level manner, provided with perforating parts into which outer side end parts of each coil are inserted. Symbols A and A', C and C' are tie-in parts engaging the clockwise spiral coils of the first step and the third step, and each of the inner side header. Symblos B and B', D and D' are tie-in parts engaging the counter clockwise spiral coil of the second step, the forth step and each of the inner side header. Each of the tie-in part A.B.C.D and A'.B'.C'.D' are arranged to be located alternatively, in left and right, and in double-level manner.

Description

[Detailed Description of the Invention] This invention is characterized in that left-handed and right-handed coils are stacked alternately to facilitate connection between each coil and the inner and outer headers, thereby reducing the size of the coil mounting pad. It is.

Coils are widely used in various fields as one of the cheapest means to obtain a heat transfer surface. These coils can be roughly divided into spiral or double spiral coils and mosquito coil-shaped or layered mosquito coil-shaped coils. The present invention relates to a layered mosquito coil.

In the case of layered mosquito coils, which are made by stacking many mosquito coils in parallel, conventionally all the coils were wound in the same direction and stacked on top of each other. The parts get in the way of each other, making assembly work difficult and making it difficult to arrange the coils at close pitches.

In view of the above points, the present invention has been developed by stacking coils shaped like mosquito coils in a left-handed and right-handed manner alternately, so that the connecting portion between the coil and the header is centered at the center, and the GL is different on the left and right sides alternately. It is configured so that the coil ends are arranged so that there is space at the joint between the coil end and the header, making it easier to connect the coil and the header, and the pitch of each coil is kept close or close to each other. The aim is to provide a compact heat exchanger.

The present invention will be explained in detail. Figure 1 is a plan view of the layered coil, Figure 2 is an illustration of the coil/header connection on the inside of the mosquito coil, and Figure 3 is an illustration of the coil/header connection on the outside of the mosquito coil. be.

In the figure, 3 is a right-handed mosquito coil coil, and 4 is a left-handed mosquito coil coil.The right-handed mosquito coil coil 3 and the left-handed mosquito coil coil 4 are arranged concentrically and alternately. They are superimposed. 1 is a ladder inward, and perforations are provided at different levels alternately on the left and right sides, into which the inner end of each coil is inserted. Reference numeral 2 denotes an outer header, which is provided with perforations alternately on the left and right at different levels, into which the outer ends Ml of each coil are inserted.

A and A', C and C' are the connection parts of the first and third stage right-handed mosquito coil coils and the inner and outer headers, respectively, and B and B', and D and D are the connection parts of the second stage, respectively.・This is the connection part between the fourth stage left-handed mosquito trap and the inner and outer headers, and each connection part A-B-C-D and A', B', C'
・1D' are arranged so that they are located alternately on the left and right at different levels.

The present invention is constructed as described above, and by stacking the mosquito coil coils alternately on the left and right sides, the positions where the coils and headers are attached are alternately on opposite sides, and a space sufficient for the attachment is 1q. ; In addition to reliably reducing the exchange rate by $11, the pitch of the lower coil can be made much smaller than in the past, and a very compact heat exchanger can be provided. If a left-handed coil is turned over, it can be used as a right-handed coil, reducing production costs.In this case, the coil should be arranged symmetrically so that the tip of the pond is located on the line connecting the center of the coil winding and one header. In other words, it is possible with one type of coil.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a layered coil plane, Fig. 2 is an explanatory diagram of the coil/header connection on the inside of the mosquito coil type coil, and Fig. 3 is an explanatory diagram of the coil/header connection on the outside of the mosquito coil type coil. (0) 1 is the inner header 2 is the outer header 3 is the right-handed mosquito coil coil 4 is the left-handed mosquito coil coil Ado/\', CdoC' is the right-handed mosquito coil coil and the inner and outer headers The connecting parts B and B', and D and 1' are the left-handed mosquito repellent vA incense-shaped coil and the inner 1 header connecting part] h revised jiff person Miura] [Gyo Co., Ltd. representative right Tamotsu Miura

Claims (1)

[Claims] Left-handed and right-handed spiral coils are alternately stacked close to each other or in close contact, and the inner circumferential ends of the layered coils are inserted into the perforations of the inner header provided at different levels alternately on the left and right sides. A coil winding characterized in that the outer circumferential ends of the layered coils are inserted into perforations of outer lugs provided at different levels alternately on the left and right sides.