JP2024074587A - Magnetic Processing Device - Google Patents

Abstract

An evaporation processing device that can be easily attached to a conduit is provided.
[Solution] The magnet comprises a first divided body 200 which houses a first magnet 103, and a second divided body 300 which houses a second magnet 105, and a first groove portion 207, a first convex portion 209, and a first concave portion 211 are formed on a first contact surface 203 of the first divided body 200, and a second groove portion 307, a second convex portion 309, and a second concave portion 311 are formed on a second contact surface 303 of the second divided body 300, such that all of the first convex portion 211 fits into the second concave portion 311 and all of the second convex portion 309 fits into the first concave portion 211, thereby bringing the first contact surface 203 and the second contact surface 303 into contact with each other, and an insertion hole 101 is formed by the first groove portion 207 and the second groove portion 307, and the contact state is maintained by the attractive force of the magnetic field.
[Selected figure] Figure 2

Description

The present invention relates to a magnetic treatment device that applies magnetism to a fluid flowing inside a conduit.

Conventionally, magnetic treatment devices have been proposed that apply magnetism to a fluid using a magnetic field generated by a pair of magnets. For example, the magnetic treatment device described in Patent Document 1 has an inlet for introducing water (fluid) from the outside and an outlet for discharging the water taken in from the inlet to the outside, and magnetizes the water taken in from the inlet inside the device. This makes it possible to remove impurities from the water and prevent internal corrosion of drainage pipes, etc.

JP 2007-69192 A

However, in order to attach the magnetic treatment device described in Patent Document 1 to an existing conduit in a factory or the like, it is first necessary to cut a portion of the conduit, and then attach one end of the conduit to the inlet and the other end to the outlet, making the attachment to the conduit cumbersome.

The present invention was made in consideration of the above points, and its purpose is to provide a magnetic processing device that is easy to attach to a conduit.

As a solution to achieve the above objective,
The magnetic processing device of the present invention comprises:
an insertion hole through which a non-magnetic conduit can be inserted;
A pair of magnets arranged opposite each other with the insertion hole in between;
and an exterior part housing the pair of magnets,
The pair of magnets are arranged so that opposite poles face each other,
A magnetic treatment device that applies magnetism to a fluid flowing inside the conduit inserted into the insertion hole by a magnetic field generated by the pair of magnets,
the exterior portion includes a first divided body that houses one of the pair of magnets and a second divided body that houses the other of the pair of magnets,
the first divided body has a first contact surface that comes into contact with the second divided body, and a first groove portion, a first protrusion portion, and a first recess portion are formed on the first contact surface;
the second divided body has a second contact surface that comes into contact with the first divided body, and a second groove portion, a second protrusion portion, and a second recess portion are formed on the second contact surface;
when the entire first protrusion fits into the second recess and the entire second protrusion fits into the first recess, the first contact surface and the second contact surface come into contact with each other, and the insertion hole is formed by the first groove portion and the second groove portion,
The magnetic processing device is characterized in that the contact state is maintained by the attractive force of the magnetic field.

Further, a first notch having a stepped shape is formed in the first recess,
A second recess is formed with a stepped second notch,
a non-contact state in which the first contact surface and the second contact surface are not in contact with each other due to the first convex portion abutting against the second notch and the second convex portion abutting against the first notch,
The magnetic processing device may be characterized in that the non-contact state is maintained by the attractive force of the magnetic field.

The first divided body includes a first side wall portion constituting a portion of the outer wall of the exterior portion that covers the periphery of the one magnet, a first opposing wall portion constituting a portion of the outer wall of the exterior portion that faces the first contact surface, and a first contact wall portion of the outer wall of the exterior portion that has the first contact surface,
the second divided body includes a second side wall portion constituting a portion of the outer wall of the exterior portion that covers the periphery of the other magnet, a second opposing wall portion constituting a portion of the outer wall of the exterior portion that faces the second contact surface, and a second contact wall portion of the outer wall of the exterior portion that has the second contact surface,
A reinforcing member that reinforces the exterior is provided within the exterior,
the reinforcing member includes a first reinforcing member provided between the first opposing wall portion and the one magnet to reinforce the first divided body, and a second reinforcing member provided between the second opposing wall portion and the other magnet to reinforce the second divided body,
The magnetic treatment device may be characterized in that the first reinforcing member and the second reinforcing member are made of a material having a magnetic shielding effect, thereby serving as a magnetic shielding portion that magnetically shields the pair of magnets.

The present invention also provides a method for manufacturing a vehicle having a vehicle body having a plurality of exterior parts according to claim 3,
The magnetic treatment device may be characterized in that the one exterior part and the other exterior part of the multiple exterior parts are arranged along the conduit so that the pair of magnets of the one exterior part and the pair of magnets of the other exterior part have opposite poles to each other.

The present invention also provides a method for manufacturing a vehicle having a vehicle body having a plurality of exterior parts according to claim 3,
The magnetic treatment device may be characterized in that one exterior part and the other exterior part of the multiple exterior parts are arranged along the conduit so that the pair of magnets of the one exterior part and the pair of magnets of the other exterior part have the same polarity.

Also, an insertion hole through which a non-magnetic internal conduit can be inserted;
A pair of magnets arranged opposite each other with the insertion hole in between;
and an exterior part housing the pair of magnets,
The pair of magnets are arranged so that opposite poles face each other,
the exterior portion includes a first divided body that houses one of the pair of magnets and a second divided body that houses the other of the pair of magnets,
the first divided body has a first contact surface that comes into contact with the second divided body, and a first groove portion, a first protrusion portion, and a first recess portion are formed on the first contact surface;
the second divided body has a second contact surface that comes into contact with the first divided body, and a second groove portion, a second protrusion portion, and a second recess portion are formed on the second contact surface;
when the entire first protrusion fits into the second recess and the entire second protrusion fits into the first recess, the first contact surface and the second contact surface come into contact with each other, and the insertion hole is formed by the first groove portion and the second groove portion,
the contact state is maintained by the attractive force of the magnetic field,
A method for attaching a magnetic treatment device that applies magnetism to a fluid flowing inside the internal conduit inserted into the insertion hole by using a magnetic field generated by the pair of magnets, comprising:
a separation step of cutting off a portion of the existing external conduit to separate it into an inlet side external conduit and an outlet side external conduit;
a connecting step of connecting the internal conduit to the inlet side external conduit and the outlet side external conduit;
The method may also be characterized in that it includes an integration process for bringing the first and second division bodies into contact with each other with the internal conduit interposed between them.

Also, an insertion hole through which a non-magnetic internal conduit can be inserted;
A pair of magnets arranged opposite each other with the insertion hole in between;
and an exterior part housing the pair of magnets,
The pair of magnets are arranged so that opposite poles face each other,
the exterior portion includes a first divided body that houses one of the pair of magnets and a second divided body that houses the other of the pair of magnets,
the first divided body has a first contact surface that comes into contact with the second divided body, and a first groove portion, a first protrusion portion, and a first recess portion are formed on the first contact surface;
the second divided body has a second contact surface that comes into contact with the first divided body, and a second groove portion, a second protrusion portion, and a second recess portion are formed on the second contact surface;
when the entire first protrusion fits into the second recess and the entire second protrusion fits into the first recess, the first contact surface and the second contact surface come into contact with each other, and the insertion hole is formed by the first groove portion and the second groove portion,
the contact state is maintained by the attractive force of the magnetic field,
the first divided body includes a first side wall portion constituting a portion of an outer wall of the exterior portion that covers the periphery of the one magnet, a first opposing wall portion constituting a portion of the outer wall of the exterior portion that faces the first contact surface, and a first contact wall portion of the outer wall of the exterior portion that has the first contact surface,
the second divided body includes a second side wall portion constituting a portion of the outer wall of the exterior portion that covers the periphery of the other magnet, a second opposing wall portion constituting a portion of the outer wall of the exterior portion that faces the second contact surface, and a second contact wall portion of the outer wall of the exterior portion that has the second contact surface,
A reinforcing member that reinforces the exterior is provided within the exterior,
the reinforcing member includes a first reinforcing member provided between the first opposing wall portion and the one magnet to reinforce the first divided body, and a second reinforcing member provided between the second opposing wall portion and the other magnet to reinforce the second divided body,
The first reinforcing member and the second reinforcing member are made of a material having a magnetic shielding effect, and serve as a magnetic shielding portion that magnetically shields the pair of magnets,
A method for attaching a magnetic treatment device that applies magnetism to a fluid flowing inside the internal conduit inserted into the insertion hole by using a magnetic field generated by the pair of magnets, comprising:
a separation step of cutting off a portion of the existing external conduit to separate it into an inlet side external conduit and an outlet side external conduit;
a connecting step of connecting the internal conduit to the inlet side external conduit and the outlet side external conduit;
an inlet side mounting step of mounting an inlet side packing member between the inlet side external conduit and the internal conduit, the inlet side packing member preventing leakage of fluid from between the inlet side external conduit and the internal conduit and having a magnetic shielding effect;
an outlet side installation step of installing an outlet side packing member between the outlet side external conduit and the internal conduit, the outlet side packing member preventing leakage of fluid from between the outlet side external conduit and the internal conduit and having a magnetic shielding effect;
The method may also include an integration process for bringing the first and second division bodies into contact with each other with the internal conduit interposed between the first and second division bodies and between the inlet side packing member and the outlet side packing member.

The method of installing the magnetic treatment device may also include, after the separation process, a replacement process in which the part of the existing external conduit that was removed is replaced with the internal conduit having a smaller diameter than the inlet side external conduit and the outlet side external conduit.

The present invention provides a magnetic processing device that is easy to attach to a conduit.

This is a water cooling system for cooling the motor. A magnetic processing device attached to the conduit of a water cooling system. A magnetic processing device attached to the conduit of a water cooling system. A magnetic processing device attached to the conduit of a water cooling system. A magnetic processing device attached to the conduit of a water cooling system. FIG. 2 is a perspective view showing a magnetic processing device. FIG. 2 is a side view showing the magnetic treatment device. FIG. 2 is a perspective view showing a first divided body and a second divided body of the magnetic processing device. FIG. 4 is a left side view showing the first divided body and the second divided body. FIG. 4 is a front view showing a first divided body and a second divided body. FIG. 4 is a plan view showing a first divided body. FIG. 4 is a plan view showing a second divided body. 11A and 11B are diagrams for explaining a first recess in the first divided body and a second recess in the second divided body. FIG. 2 is an exploded perspective view of the first divided body. FIG. 4 is a left side view showing the first divided body and the second divided body disassembled. FIG. 13 is a diagram for explaining a contact state in which a first divided body and a second divided body are in contact with each other; 11 is a diagram for explaining a non-contact state in which the first divided body and the second divided body are not in contact with each other. FIG. 10A to 10C are diagrams for explaining the steps of a mounting method for a magnetic processing device according to Modification 1. 11A to 11C are diagrams for explaining a chamfering step according to Modification 1; FIG. 11 is a side view showing an inlet side packing member (outlet side packing member) according to Modification 1. 13A and 13B are diagrams for explaining the positional relationship and magnetic pole relationship of a pair of magnets according to Modification 2. 13A and 13B are diagrams for explaining the positional relationship and magnetic pole relationship of a pair of magnets according to Modification 3.

The following describes an embodiment of the present invention with reference to the drawings.

Figure 1 is a schematic diagram showing a water-cooling system S. The water-cooling system S is a system for cooling motors mounted on automobiles, ships, etc., with cooling water.

The water-cooling system S mainly comprises a non-magnetic conduit (external conduit) 1, a water-cooled motor 2, an inverter device 3, a circulation pump 4, a heat exchanger 5, and a magnetic processing device 100.

The conduit 1 is a water passage for supplying cooling water (fluid) to the water-cooled motor 2. The cooling water supplied from the conduit 1 dissipates heat from the water-cooled motor 2. The temperature of the cooling water rises as the heat from the water-cooled motor 2 dissipates. The inverter device 3 is a reverse conversion device that converts direct current to alternating current. The circulation pump 4 is a pump for circulating (flowing) the cooling water in the conduit 1. The arrow A in FIG. 1 indicates the direction in which the cooling water returns. The heat exchanger 5 is a device for cooling the cooling water circulating in the conduit 1.

The magnetic treatment device 100 is a device for applying magnetism and far infrared rays to the cooling water circulating inside the conduit 1. The magnetic treatment device 100 is detachably attached to the outer peripheral surface 1a of the conduit 1. The cooling water is magnetically activated by the magnetic treatment device 100.

Next, the magnetic processing device 100 will be described in detail.

Figures 2 to 5 show the magnetic treatment device 100 attached to the conduit 1. In the following description, the left-right direction refers to the axial direction of the conduit 1 to which the magnetic treatment device 100 is attached. In addition, in each of Figures 2 to 15, the left-right direction is indicated as the X direction, the front-back direction is indicated as the Y direction, and the up-down direction is indicated as the Z direction.

As shown in Figures 2 to 5, the magnetic processing device 100 includes an insertion hole 101, a first magnet 103, and a second magnet 105. In the following description, the first magnet 103 and the second magnet 105 are referred to as a "pair of magnets" as appropriate.

In this embodiment, a coating agent made by mixing powdered silica or other minerals that generate far-infrared rays with an adhesive is applied to the lower surface of the first magnet 103 (the surface of the first magnet 103 facing the conduit 1) and the upper surface of the second magnet 105 (the surface of the second magnet 105 facing the conduit 1), thereby forming a coating layer (not shown) as a far-infrared generating unit that generates far-infrared rays on the surfaces of the first magnet 103 and the second magnet 105. The molecular clusters of the cooling water (liquid) in the conduit 1 are dispersed by the magnetic force of the pair of magnets and the far-infrared rays of each coating layer. The far-infrared rays from the coating layer are absorbed by the molecules of the cooling water, giving energy to the molecules and causing a resonant reaction to vibrate the molecules. In this way, the far-infrared rays of each coating layer excite the molecules to a high-energy state, making them more susceptible to the effects of magnetic forces, which results in the clusters of water molecules being more likely to break apart and maintaining that state for a longer period of time.

The insertion hole 101 is a hole for attaching the magnetic treatment device 100 to the conduit 1. The pair of magnets is for applying a magnetic field to the cooling water (activated water) circulating inside the conduit 1.

As shown in FIG. 2, the insertion hole 101 extends linearly in the X direction. The insertion hole 101 has an opening 111 and an opening 113. The opening 111 opens in the X1 direction, and the opening 113 opens in the X2 direction.

Figure 3 is a left side view of the magnetic processing device 100 attached to the conduit 1, viewed from the X1 direction. As shown in Figures 2 and 3, both openings 111, 113 are formed in an elliptical shape that is wide in the Y1 and Y2 directions. When the conduit 1 is inserted into the insertion hole 101, the outer peripheral surface 1a of the conduit 1 and the inner peripheral surface 101a of the insertion hole 101 abut against each other in the Z1 and Z2 directions, and gaps 101d and 101e are generated between the outer peripheral surface 1a and the inner peripheral surface 101a.

The pair of magnets are rare earth permanent magnets. The pair of magnets are rectangular parallelepiped shaped. Each of the pair of magnets is formed to be approximately 45 mm in the longitudinal direction (X direction), 30 mm in the lateral direction (Y direction), and 10 mm in the thickness direction (Z direction).

In this embodiment, rare earth permanent magnets are used as a pair of magnets, but this is not limited to this, and permanent magnets with the same residual magnetic flux density and coercive force as rare earth permanent magnets may be used. Furthermore, the size of each pair of magnets is not limited to the above, and can be changed as appropriate depending on the specifications, and magnets of different sizes may be used instead of the same size.

Figure 4 is a front view of the magnetic treatment device 100 attached to the conduit 1, seen from the Y1 direction. As shown in the figure, the first magnet 103 is arranged on the Z1 side of the conduit 1, and the second magnet 105 is arranged on the Z2 side of the conduit 1. The pair of magnets are arranged parallel to the central axis of the conduit 1, with the opposite poles facing each other. More specifically, the first magnet 103 is arranged so that the lower surface 103a (the surface on the Z2 side) is the N pole side and the upper surface 103b (the surface on the Z1 side) is the S pole side, and the second magnet 105 is arranged so that the upper surface 105a is the S pole side and the lower surface 105b is the N pole side. As a result, the lower surface 103a on the N pole side of the first magnet 103 and the upper surface 105a on the S pole side of the second magnet 105 face each other.

Figures 6 and 7 show the magnetic treatment device 100 not attached to the conduit 1. The magnetic treatment device 100 comprises a first divided body 200 and a second divided body 300. In the following description, the first divided body 200 and the second divided body 300 are appropriately referred to as a "pair of divided bodies."

In this embodiment, a pair of divided bodies are connected to each other and integrated to form the exterior part 110 that constitutes the main body of the magnetic processing device 100. The pair of divided bodies have contact surfaces where the pair of divided bodies contact each other, and a convex part and a concave part are formed on the contact surface. When the pair of divided bodies are integrated, the concave part and the convex part are fitted together to form the exterior part 110, thereby forming the magnetic processing device 100. Of the pair of magnets, the first magnet 103 is housed inside the first divided body 200, and the second magnet 105 is housed inside the second divided body 300.

Next, the first divided body 200 will be described with reference to Figures 8 to 15. In the following description, the first divided body 200 will be described as being located on the Z1 side of the second divided body 300.

The first divided body 200 has a first side wall 200a, a second side wall 200b, a third side wall 200c, a fourth side wall 200d, a first contact wall 200e, and a first opposing wall 200f, and is formed into a box shape by these walls 200a to 200f.

As shown in Figure 15 etc., the first side wall 200a covers the X1 side of the first magnet 103. The second side wall 200b covers the X2 side of the first magnet 103. The third side wall 200c covers the Y1 side of the first magnet 103. The fourth side wall 200d covers the Y2 side of the first magnet 103. The first contact wall 200e covers the Z2 side of the first magnet 103. As shown in Figure 9 etc., the first contact wall 200e consists of a first contact surface 203, a first contact surface 205, and a first groove portion 207. The first opposing wall 200f covers the Z1 side of the first magnet 103. That is, the first divided body 200 has a first side wall portion 200A that constitutes the portion of the outer wall of the exterior part 110 that covers the periphery of the first magnet 103, a first contact wall portion 200e that has first contact surfaces 203, 205 of the outer wall of the exterior part 110, and a first opposing wall portion 200f that constitutes the portion of the outer wall of the exterior part 100 that faces the first contact wall portion 200e (first contact surfaces 203, 205).

Hereinafter, the first side wall 200a, the second side wall 200b facing the first side wall 200a, the third side wall 200c, and the fourth side wall 200d facing the third side wall 200c may be collectively referred to as the "first side wall portion 200A."

The first contact surface 203 is a contact surface where the pair of divided bodies come into contact with each other. FIG. 9 is a left side view of the first divided body 200 as viewed from the X1 direction, and FIG. 11 is a bottom view of the first divided body 200 as viewed from the Z2 direction. As shown in FIGS. 9 and 11, the first contact surface 203 is formed on the Y1 side of the first groove portion 207, and is connected via the first groove portion 207 to the first contact surface 205 arranged on the Y2 side of the first groove portion 207. A first convex portion 209 is formed on the first contact surface 203.

The first convex portion 209 fits into the second concave portion 311 of the second divided body 300 when the pair of divided bodies are integrated. As shown in FIG. 9, the first convex portion 209 protrudes substantially perpendicularly (in the Z2 direction) to the first contact surface 203. When viewed from the X1 direction, the first convex portion 209 has a substantially trapezoidal shape with its dimension in the Y direction gradually decreasing from the Z1 direction toward the Z2 direction. Also, as shown in FIG. 10, when viewed from the Y1 direction, the first convex portion 209 has a rectangular shape that is elongated in the X direction.

The first contact surface 205 is a contact surface where the pair of divided bodies come into contact with each other. As shown in FIG. 11, the first contact surface 205 is connected to the first contact surface 203 via the first groove portion 207, and is formed on the Y2 side of the first groove portion 207. A first recess 211 is formed in the first contact surface 205.

The first recess 211 fits into the second protrusion 309 of the second divided body 300 when the pair of divided bodies are integrated. The first recess 211 will be explained using Figures 11 and 13(a). Note that Figure 13(a) is a left side view of the first divided body 200 as viewed from the X1 direction, and in this figure, the cross-sectional shape of the first recess 211 is illustrated in order to explain the first recess 211.

The first recess 211 has a first opening 211a, a first notch 211b, and a first bottom 211c.

As shown in FIG. 11, the first opening 211 extends in the X direction when the first division 200 is viewed from the Z2 direction, and is formed in a generally vertically rectangular shape. As shown in FIG. 13(a), the first cutout 211b has an abutment surface 211d. The abutment surface 211d is abutted by the end (tip surface) 309a of the second convex portion 309 of the second division 300. Also, as shown in FIG. 13(a), the first bottom 211c is located at a higher position (position on the Z1 side) than the abutment surface 211d of the first cutout 211b, and this step portion forms the first space 211e that accommodates the second convex portion 309 of the second division 300.

The first groove 207 constitutes a part of the insertion hole 101 described above. As shown in FIG. 11, the first groove 207 extends linearly in the X direction from the first side wall 200a of the first divided body 200 to the second side wall 200b opposite the first side wall 200a. As shown in FIG. 9, the surface 207a of the first groove 207 is continuous with the first contact surface 203 and the first contact surface 205. The first groove 207 combines with the second groove 307 described below when the pair of divided bodies are integrated (details will be described later).

Figure 14 is an exploded perspective view of the first divided body 200, and Figure 15 is an exploded left side view of the first divided body 200 and the second divided body 300. The first divided body 200 has a first base 230 and a first cover 250.

The first base 230 has a first contact wall 200e. The first cover 250 has a first side wall portion 200A and a first opposing wall 200f. The first base 230 and the first cover 250 are formed of a material that is not affected by magnets (magnetic fields). The first base 230 and the first cover 250 are fixed in a closed state by a locking portion (not shown), forming the first divided body 200 having an internal space. The first base 230 and the first cover 250 may be fixed in a closed state by welding, adhesive, or the like, and the point is that the first base 230 and the first cover 250 are fixed in a closed state.

The first magnet 103, the first reinforcing member 107, the first reinforcing member 109, and the buffer member 120 are housed inside the first divided body 200 (inside the exterior part 110).

The first base 230 is formed with a first housing section 231 for housing the first magnet 103. When the first base 230 is viewed from the Z1 direction, the first housing section 231 has a horizontally rectangular shape that is longer in the X direction. The first magnet 103 is housed in the first housing section 231 so that it has a south pole in the Z1 direction and a north pole in the Z2 direction (see also FIG. 21(a)). In other words, the lower surface 103a of the first magnet 103 is the north pole.

The first reinforcing member 107 and the first reinforcing member 109 are formed of a material with high magnetic permeability such as metal (e.g., iron) and have a magnetic shielding effect. These first reinforcing members 107, 109 are formed of a material with higher rigidity than the first cover 250. The first reinforcing members 107, 109 are members that reinforce the first divided body 200 (first cover 250) and cover the first housing portion 231 (first magnet 103). The first reinforcing member 107 is stacked on the Z1 side of the first housing portion 231, and the first reinforcing member 109 is stacked on the Z1 side of the first reinforcing member 107. A buffer member 120 is interposed between the first reinforcing member 107 and the first reinforcing member 109.

The first reinforcing member 107 has a first covering portion 107a, a second covering portion 107b, and a second covering portion 107c. The first covering portion 107a covers the upper surface 103b (south pole) on the Z1 side of the first magnet 103. The second covering portion 107b covers the side surface 103c on the Y1 side of the side surface of the first magnet 103. The second covering portion 107c covers the side surface 103d on the Y2 side of the side surface of the first magnet 103.

The first reinforcing member 109 has a first covering portion 109a, a second covering portion 109b, and a second covering portion 109c. As shown in FIG. 15, the first covering portion 109a covers the upper surface 120a on the Z1 side of the buffer member 120. The second covering portion 109b covers the side surface 120b on the Y1 side of the buffer member 120. The second covering portion 109c covers the side surface 120c on the Y2 side of the buffer member 120.

The cushioning member 120 is made of a resilient material such as sponge or rubber, and has a rectangular parallelepiped shape. The cushioning member 120 is in close contact with the first reinforcing member 107 and the first reinforcing member 109.

Next, the second divided body 300 will be described with reference to Figures 8 to 15. In the following description, the second divided body 300 will be described as being located on the Z2 side of the first divided body 200.

As shown in FIG. 8, the second divided body 300 has a first side wall 300a, a second side wall 300b, a third side wall 300c, a fourth side wall 300d, a second contact wall 300e, and a second opposing wall 300f, and these walls 300a to 300f form a box shape.

As shown in FIG. 15 etc., the first side wall 300a covers the X1 side of the second magnet 105. The second side wall 300b covers the X2 side of the second magnet 105. The third side wall 300c covers the Y1 side of the second magnet 105. The fourth side wall 300d covers the Y2 side of the second magnet 105. The second contact wall 300e covers the Z1 side of the second magnet 105. The second contact wall 300e has a second contact surface 303, a second contact surface 305, and a second groove portion 307. The second opposing wall 300f covers the Z2 side of the second magnet 105. That is, the second divided body 300 has a second side wall portion 300A that constitutes the portion of the outer wall of the exterior part 110 that covers the periphery of the second magnet 105, a second contact wall portion 300e that has second contact surfaces 303, 305 of the outer wall of the exterior part 100, and a second opposing wall portion 300f that constitutes the portion of the outer wall of the exterior part 110 that faces the first contact wall portion 300e (second contact surfaces 303, 305).

Hereinafter, the first side wall 300a, the second side wall 300b facing the first side wall 300a, the third side wall 300c, and the fourth side wall 300d facing the third side wall 300c may be collectively referred to as the "second side wall portion 300A."

The second contact surface 303 is a contact surface where the pair of divided bodies come into contact with each other. FIG. 9 is a left side view of the second divided body 300 as viewed from the X1 direction, and FIG. 12 is a bottom view of the second divided body 300 as viewed from the Z1 direction. As shown in FIGS. 9 and 12, the second contact surface 303 is formed on the Y2 side of the second groove portion 307, and is connected to the second contact surface 305 via the second groove portion 307. The second contact surface 303 comes into contact with the first contact surface 205 described above when the pair of divided bodies are integrated. A second convex portion 309 is formed on the second contact surface 303.

The second convex portion 309 fits into the first concave portion 211 of the first divided body 200 when the pair of divided bodies are integrated. As shown in FIG. 9, the second convex portion 309 protrudes in the Z1 direction substantially perpendicular to the second contact surface 303. When viewed from the X1 direction, the second convex portion 309 has a substantially trapezoidal shape with its dimension in the Y direction gradually decreasing from the Z2 direction toward the Z1 direction. Also, as shown in FIG. 10, when viewed from the Y1 direction, the second convex portion 309 has a rectangular shape that is elongated in the X direction.

The second contact surface 305 is a contact surface where the pair of divided bodies come into contact with each other. As shown in FIG. 12, the second contact surface 305 is connected to the second contact surface 303 via the second groove portion 307, and is formed on the Y2 side of the second groove portion 307. The second contact surface 305 comes into contact with the first contact surface 203 described above when the pair of divided bodies are integrated. A second recess 311 is formed in the second contact surface 305.

The second recess 311 fits into the first protrusion 209 of the first divided body 200 when the pair of divided bodies are integrated. The second recess 311 will be explained using Figures 12 and 13(b). Note that Figure 13(b) is a left side view of the second divided body 300 as viewed from the X1 direction, and in this figure, the cross-sectional shape of the second recess 311 is illustrated to explain the second recess 311.

The second recess 311 has a second opening 311a, a second notch 311b, and a second bottom 311c.

As shown in FIG. 12, the second opening 311 extends in the X direction when the second division 300 is viewed from the Z1 direction, and is formed in a generally vertically rectangular shape. As shown in FIG. 13(b), the second cutout 311b has an abutment surface 311d. The abutment surface 311d is abutted by the end (tip surface) 209a of the first convex portion 209 of the first division 200. Also, as shown in FIG. 13(b), the second bottom 311c is located at a lower position (position on the Z2 side) than the abutment surface 311d of the second cutout 311b, and this step portion forms a second space 311e that accommodates the first convex portion 209 of the first division 200.

The second groove portion 307 constitutes a part of the insertion hole 101 described above. As shown in FIG. 12, the second groove portion 307 extends linearly in the X direction from the first side wall 300a of the second divided body 300 to the second side wall 300b opposite the first side wall 300a. As shown in FIG. 9, the surface 307a of the second groove portion 307 is continuous with the second contact surface 303 and the second contact surface 305. The second groove portion 307 is mated with the first groove portion 207 when the pair of divided bodies are integrated (details will be described later).

Figure 15 shows a left side view of the first divided body 200 and the second divided body 300 disassembled. The second divided body 300 has a second base 330 and a second cover 350.

The second base 330 has a second contact wall 300e. The second cover 350 has a second side wall portion 300A and a second opposing wall 300f. The second base 330 and the second cover 350 are formed of a material that is not affected by magnets (magnetic fields). The second base 330 and the second cover 350 are fixed in a closed state by a locking portion (not shown), forming the second divided body 300 having an internal space. The second base 330 and the second cover 350 may be fixed in a closed state by welding, adhesive, or the like, and the point is that the second base 330 and the second cover 350 are fixed in a closed state.

The second magnet 105, the second reinforcing member 111, the second reinforcing member 113, and the buffer member 220 are housed inside the second divided body 300 (inside the exterior part 110).

The second base 330 is formed with a second housing section 331 for housing the second magnet 105. Similar to the first housing section 231 shown in FIG. 14, the second housing section 331 has a horizontally elongated rectangular shape in the X direction when the second base 330 is viewed from the Z2 direction (not shown). The second magnet 105 is housed in the second housing section 331 so that it has a south pole in the Z1 direction and a north pole in the Z2 direction (see also FIG. 21(a)). In other words, the top surface 105a of the second magnet 105 is the south pole.

The second reinforcing member 111 and the second reinforcing member 113 are formed of a material with high magnetic permeability such as metal (e.g., iron) and have a magnetic shielding effect. These second reinforcing members 111, 113 are formed of a material with higher rigidity than the second cover 350. The second reinforcing members 111, 113 are members that reinforce the second divided body 300 (second cover 350) and cover the second housing portion 331 (second magnet 105). The second reinforcing member 111 is stacked on the Z2 side of the second housing portion 331, and the second reinforcing member 113 is stacked on the Z2 side of the second reinforcing member 111. A buffer member 220 is interposed between the second reinforcing member 111 and the second reinforcing member 113.

The second reinforcing member 111 has a first covering portion 111a, a second covering portion 111b, and a second covering portion 111c. The first covering portion 111a covers the lower surface 105b (north pole) on the Z2 side of the second magnet 105. The second covering portion 111b covers the side surface 105c on the Y1 side of the side surface of the second magnet 105. The second covering portion 111c covers the side surface 105d on the Y2 side of the side surface of the second magnet 105.

The second reinforcing member 113 has a first covering portion 113a, a second covering portion 113b, and a second covering portion 113c. The first covering portion 113a covers the lower surface 220a, which is the Z2 side of the buffer member 220. The second covering portion 113b covers the side surface 220b on the Y1 side of the buffer member 220. The second covering portion 113c covers the side surface 220c on the Y2 side of the buffer member 220.

The cushioning member 220 is made of a resilient material such as sponge or rubber, and has a rectangular parallelepiped shape. The cushioning member 220 is in close contact with the second reinforcing member 111 and the second reinforcing member 113.

Next, the integration of the first division 200 and the second division 300 will be described with reference to the drawings as appropriate. In the following description, for convenience of explanation, the first contact surface 203 and the first contact surface 205 of the first division 200 will be referred to as the "first contact surface," and the second contact surface 303 and the second contact surface 305 of the second division 300 will be referred to as the "second contact surface."

First, the worker holds a pair of separate pieces in each hand and places them facing each other. At this time, as shown in Figures 9 and 13, the first contact surface 203 and the second contact surface 305, and the first contact surface 205 and the second contact surface 303, face each other (hereinafter referred to as the first state). This first state can also be said to be a state in which the first convex portion 209 and the second concave portion 311, and the second convex portion 309 and the first concave portion 211, face each other.

Next, the pair of divided bodies in the first state are brought closer to each other. At this time, when the distance between the first divided body 200 and the second divided body 300 reaches a predetermined distance, the pair of divided bodies move in a direction closer to each other due to the attractive force of the magnetic field generated by the pair of magnets. In other words, the lower surface 103a (north pole) of the first magnet 103 and the upper surface 105a (south pole) of the second magnet 105 move in a direction in which they attract each other.

13, the first recess 211 is provided with a first space 211e for accommodating all of the second protrusions 309 and a first notch 211b against which the end 309a of the second protrusions 309 can abut. Similarly, the second recess 311 is provided with a second space 311e for accommodating all of the first protrusions 209 and a second notch 311b against which the end 209a of the first protrusions 209 can abut.

In this embodiment, when the first convex portion 209 is in a state in which it can be accommodated in the second space 311e, the first convex portion 209, the first concave portion 211, the second convex portion 309, and the second concave portion 311 are formed so that the second convex portion 309 can also be accommodated in the first space 211e. Similarly, when the second convex portion 309 is in a state in which it can be accommodated in the first space 211e, the first convex portion 209, the first concave portion 211, the second convex portion 309, and the second concave portion 311 are formed so that the first convex portion 209 can also be accommodated in the second space 311e. In the following description, when the pair of divided bodies approach each other in a direction in which they approach each other, the state in which the first convex portion 209 can be accommodated in the second space 311e, or the state in which the second convex portion 309 can be accommodated in the first space 211e, is referred to as the "second state".

On the other hand, in this embodiment, the first convex portion 209, the first notch 211b (first recess 211), the second convex portion 309, and the second notch 311b (second recess 311) are each formed so that when the end 209a of the first convex portion 209 is in a state capable of abutting against the abutment surface 311d of the second notch 311b, the end 309a of the second convex portion 309 is also in a state capable of abutting against the abutment surface 211d of the first notch 211b. Similarly, when the end 309a of the second protrusion 309 is in a state where it can abut against the abutment surface 211d of the first notch 211b, the first protrusion 209, the first notch 211b (first recess 211), the second protrusion 309, and the second notch 311b (second recess 311) are formed so that the end 209a of the first protrusion 209 can also abut against the abutment surface 311d of the second notch 311b. In the following description, when the pair of divided bodies approach each other in the approaching direction, the state where the end 209a can abut against the abutment surface 311d or the state where the end 309a can abut against the abutment surface 211d is referred to as the "third state".

Next, the pair of divided bodies in the second state move closer to each other due to the attractive force of the magnetic field. As a result, the first convex portion 209 is accommodated in the second space 311e, and the second convex portion 309 is accommodated in the first space 211e. At this time, the attractive force of the magnetic field brings the first contact surface 203 and the second contact surface 305 into surface contact, and the first contact surface 205 and the second contact surface 303 into surface contact. In other words, the pair of divided bodies are in a contact state in which the first contact surface and the second contact surface are in contact with each other (integration process), and thus the exterior portion 110 is formed to become the magnetic processing device 100.

The contact state, i.e., the state in which the first divided body 200 and the second divided body 300 are integrated, is shown in Figures 6, 7, and 16. Even if the operator releases the pair of divided bodies, the contact state is maintained by the attractive force of the magnetic field. In the contact state, as shown in Figure 16, the surface 207a of the first groove portion 207 and the surface 307a of the second groove portion 307 are continuous, and an insertion hole 101 for inserting the conduit 1 is formed. In other words, when the first divided body 200 and the second divided body 300 are integrated, an insertion hole 101 composed of the first groove portion 207 and the second groove portion 307 appears in the exterior portion 110 of the magnetic processing device 100.

As shown in FIG. 16, when a pair of divided bodies are in contact with each other, an imaginary line M passing through the geometric center position P on the lower surface 103a (north pole) of the first magnet 103 and the geometric center position Q on the upper surface 105a (south pole) of the second magnet 105 is perpendicular to the lower surface 103a of the first magnet 103 and the upper surface 105a of the second magnet 105.

Meanwhile, the pair of divided bodies in the third state move closer to each other due to the attractive force of the magnetic field. As a result, the end 209a of the first convex portion 209 abuts against the abutment surface 311d of the second notch portion 311b, and the end 309a of the second convex portion 309 abuts against the abutment surface 211d of the first notch portion 211b. At this time, the first contact surface 203 and the second contact surface 305, and the first contact surface 205 and the second contact surface 303 are in a non-contact state where they are not in contact with each other.

The non-contact state is maintained by the attractive force of the magnetic field even if the user releases the pair of divided bodies. As shown in FIG. 17, in the non-contact state, the first contact surface and the second contact surface are parallel to each other. Also, in the non-contact state, unlike the contact state, the surface 207a of the first groove portion 207 and the surface 307a of the second groove portion 307 are not continuous, and the first groove portion 207 and the second groove portion 307 do not form the through hole 101 (in other words, it can be said that a through hole with a diameter larger than that of the through hole 101 is formed).

As shown in FIG. 17, when the pair of divided bodies are in a non-contact state, unlike the contact state, the imaginary line N passing through the geometric center position P on the lower surface 103a of the first magnet 103 and the geometric center position Q on the upper surface 105a of the second magnet 105 is not perpendicular to the lower surface 103a of the first magnet 103 and the upper surface 105a of the second magnet 105 (in other words, the imaginary line N is inclined with respect to the imaginary line M).

Next, an example of attaching the magnetic treatment device 100 to the conduit 1 will be described.

First, the worker brings the second divided body 300 held in one hand into contact with the outer circumferential surface 1a of the conduit 1. At this time, the surface 307a of the second groove portion 307 is brought into contact with the Z2 side of the outer circumferential surface 1a so that the formation direction of the second groove portion 307 is aligned with the axial direction (X direction) of the conduit 1. In this state, the first divided body 200 held in the other hand is brought into opposition to the second divided body 200. At this time, the first contact surface 203 and the second contact surface 305, and the first contact surface 205 and the second contact surface 303 are in opposition to each other (first state). Then, the first divided body 200 is brought close to the second divided body 300 to bring the first convex portion 209 into the second space 311e (the second convex portion 309 is in the first space 211e) into the second state. At this time, the magnetic field's attractive force causes the first division 200 and the second division 300 to move closer together, and the first contact surface and the second contact surface come into contact with each other to form the exterior portion 110, so that the conduit 1 is sandwiched in the insertion hole 101. In this way, the magnetic treatment device 100 is attached to the conduit 1.

When the magnetic treatment device 100 is attached to the conduit 1, as shown in Figures 3 and 16, the virtual line M passes through the position P of the first magnet 103, the position Q of the second magnet 105, and the position R of the conduit 1. The position R of the conduit 1 corresponds to the central position located on the central axis of the conduit 1. As described above, the position P of the first magnet 103 corresponds to the geometric center position on the lower surface 103a of the first magnet 103, and the position Q of the second magnet 105 corresponds to the geometric center position on the upper surface 105a of the second magnet 105. The virtual line M is perpendicular to the lower surface 103a of the first magnet 103 and the upper surface 105a of the second magnet 105, and the distance from the position P of the first magnet 103 to the position R of the conduit 1 is the same as the distance from the position Q of the second magnet 105 to the position R of the conduit 1. As a result, the pair of magnets exert a magnetic force on the cooling water perpendicular to the flow direction (X1 direction) of the cooling water flowing through the conduit 1. In other words, the cooling water flows perpendicular to the magnetic field lines that exist between the north and south poles. The magnetic flux density at position R in the conduit 1 is 1,000 to 5,000 gauss.

As described above, the magnetic treatment device 100 is equipped with a pair of magnets with opposite poles facing each other through the insertion hole 101, and therefore can magnetically activate the cooling water (fluid) flowing in the conduit 1 inserted in the insertion hole 101. This increases the cooling efficiency of the water-cooled motor 2, reduces the load on the circulation pump 4, and suppresses the generation of scale, slime, water algae, etc. in the conduit 1. The cooling water magnetically activated by the magnetic treatment device 100 (hereinafter referred to as "activated water") has smaller and more uniform molecular clusters and a higher thermal conductivity (thermal conduction coefficient) than normal water that is not magnetically activated. As a result, the activated water increases the cooling efficiency of the water-cooled motor 2 and suppresses the load on the circulation pump 4. In addition, the activated water has very high surface activity, dissolving power, and penetration power, and is in a high-energy state in which electrons move actively due to the electron excitation effect. As a result, the activated water removes calcium carbonate, iron, etc. contained in the water and suppresses the generation of scale, slime, water algae, etc. in the conduit 1.

The magnetic treatment device 100 also includes an insertion hole 101 through which the conduit 1 can be inserted, a first divided body 200 that houses a first magnet 103, and a second divided body 300 that houses a second magnet 105. The magnetic treatment device 100 can be attached to the conduit 1 by inserting the conduit 1 into the insertion hole 101 so that the conduit 1 is sandwiched between the first divided body 200 and the second divided body 300, thereby providing a magnetic treatment device 100 that is easy to attach to the conduit 1.

In particular, in this embodiment, even if the operator releases the pair of divided bodies after attaching the magnetic treatment device 100 to the conduit 1, the magnetic field generated by the pair of magnets can maintain the first divided body 200 and the second divided body 300 in a state of not separating from each other (contact state). This can prevent the magnetic treatment device 100 from falling off the conduit 1. In other words, the pair of magnets has both the function of magnetically activating the cooling water and the function of maintaining the first divided body 200 and the second divided body 300 in a state of not separating from each other. Therefore, there is no need to provide a separate member to prevent the magnetic treatment device 100 from falling off the conduit 1.

In addition, when the magnetic treatment device 100 is attached to the conduit 1, when the distance between the first divided body 200 and the second divided body 300 reaches a predetermined distance, the magnetic field generated by the first magnet 103 and the second magnet 105 attracts the two divided bodies to each other, thereby reducing the effort required to attach the magnetic treatment device 100 to the conduit 1.

In addition, in this embodiment, convex portions (convex portions 209, 309) and concave portions (concave portions 211, 311) are formed on the contact surfaces where the pair of divided bodies come into contact with each other, and all of the first convex portion 209 fits into the second space 311e of the second concave portion 311, and all of the second convex portion 309 fits into the first space 211e of the first concave portion 211 to form the exterior portion 110 and constitute the magnetic processing device 100. Therefore, these convex portions and concave portions function as positioning members for integrating the first divided body 200 and the second divided body 300.

In particular, in this embodiment, when one of the protrusions is in a state where it can fit into the corresponding recess, the other protrusion is also in a state where it can fit into the corresponding recess, so the worker only needs to insert one of the protrusions into the corresponding recess to integrate the pair of divided bodies, making it easy to install the magnetic processing device 100.

In addition, in this embodiment, as shown in FIG. 16, when an operator brings the first convex portion 209 into contact with the side wall 311f of the second recess 311, or brings the second convex portion 309 into contact with the side wall 211f of the first recess 211, the magnetic field lines between the pair of magnets can be easily created to be perpendicular to the flow direction of the cooling water flowing through the conduit 1, that is, the virtual line M can be easily created to pass through the position P of the first magnet 103, the position Q of the second magnet 105, and the position R of the conduit 1.

In addition, in this embodiment, as shown in FIG. 16, the area of the end 309a of the second convex portion 309 in the Y direction is narrower than the area of the first bottom portion 211c in the Y direction, and similarly, the area of the end 209a of the first convex portion 209 in the Y direction is narrower than the area of the second bottom portion 311c in the Y direction, so that the operator can separate the pair of divided bodies from each other by sliding one divided body relative to the other divided body in the Y direction.

In addition, in this embodiment, the recesses 211 and 311 are provided with stepped notches 211b and 311b, and the first protrusion 209 is brought into contact with the second notch 311b (contact surface 311d), and the second protrusion 309 is brought into contact with the first notch 211b (contact surface 211d), respectively, to create a non-contact state in which the first contact surface and the second contact surface (the first contact surface 203 and the second contact surface 305, the first contact surface 205 and the second contact surface 303) are not in contact. This non-contact state is maintained by the attractive force of the magnetic field even if the worker releases his/her hands from the pair of divided bodies. For example, the worker can temporarily fasten the pair of divided bodies to the conduit 1 in a non-contact state, and after determining the exact mounting position of the exterior part 110 of the magnetic treatment device 100, the worker can attach the magnetic treatment device 100 to the conduit 1 with the pair of divided bodies temporarily fastened in a contact state.

In particular, in this embodiment, when one of the convex portions is in contact with the corresponding contact surface, the other convex portion is also in contact with the corresponding contact surface. Therefore, the operator only needs to place one of the convex portions in contact with the corresponding contact surface to place the pair of divided bodies in a non-contact state, making it easy to temporarily fasten the magnetic treatment device 100 to the conduit 1.

In this embodiment, as shown in FIG. 3, when the conduit 1 is inserted into the insertion hole 101, the conduit 1 and the insertion hole 101 abut against each other in the vertical direction (Z1 and Z2 directions), so that the magnetic treatment device 100 can be prevented from rotating in the circumferential direction of the conduit 1 relative to the conduit 1.

In addition, in this embodiment, as shown in FIG. 3, the openings 111, 113 of the insertion hole 101 are formed in a wide elliptical shape in the Y1 and Y2 directions, and when the conduit 1 is inserted into the insertion hole 101, gaps 101d, 101e are generated between the conduit 1 and the insertion hole 101, so that the magnetic processing device 100 can be attached to a conduit with a larger diameter than the conduit 1. In this case, the pair of divided bodies are not in contact with each other, but even in this state, it is possible to create a state in which the virtual line M passes through the position P of the first magnet 103, the position Q of the second magnet 105, and the position R of the conduit 1 (not shown).

In addition, in this embodiment, the first reinforcing members 107, 109 are formed from a material that is more rigid than the first cover 250, and therefore can reinforce the first divided body 200. Similarly, the second reinforcing members 111, 113 are formed from a material that is more rigid than the second cover 350, and therefore can reinforce the second divided body 300.

In particular, the reinforcing members 107, 109, 111, and 113 are formed of a material having a magnetic shielding effect, and as shown in Figures 14 and 15, the first reinforcing members 107 and 109 cover the first magnet 103, and the second reinforcing members 111 and 113 cover the second magnet 105. This prevents the magnetic force of the pair of magnets from extending outside the pair of divided bodies, that is, prevents the magnetic force of the pair of magnets from extending to places where it is not necessary for the magnetic force to act. As a result, the magnetic treatment device 100 of this embodiment not only prevents the magnetic flux density acting on the center (position R) of the conduit 1 from decreasing, but also makes it possible to increase that magnetic flux density.

In this embodiment, the buffer member 120 is interposed between the first reinforcing members 107 and 109 so as to be in close contact with both reinforcing members. This makes it possible to reduce the impact on the first reinforcing members 107 and 109 when an external force is applied to the first cover 250, and to prevent the first reinforcing members 107 and 109 housed inside the first divided body 200 from moving about inside the first divided body 200. Similarly, the buffer member 220 reduces the impact on the second reinforcing members 111 and 113, and to prevent the two reinforcing members 111 and 113 from moving about inside the second divided body 300.

It is preferable that the thickness (height in the Z1 direction) of the buffer member 120 is slightly thicker than the value obtained by subtracting the sum of the thickness of the first magnet 103 and the thickness of the first reinforcing members 107 and 109 from the height from the ground surface of the first magnet 103 in the first storage section 231 to the inner surface (not shown) of the first opposing wall 200f. In other words, by making "thickness of the first magnet 103 + thickness of the first reinforcing member 107 + thickness of the first reinforcing member 109 + thickness of the buffer member 120" > "height from the ground surface of the first magnet 103 in the first storage section 231 to the inner surface of the first opposing wall 200f", it is possible to further prevent the first reinforcing members 107 and 109 contained inside the first divided body 200 from moving around. The same can be said about the buffer member 220, although detailed explanation will be omitted.

Next, we will explain a modified example of the above-mentioned embodiment. In the explanation, the same components as those described above will be given the same reference numerals, and the explanation will be omitted or simplified.

Figure 18 is a diagram showing a schematic diagram of a method for attaching the magnetic treatment device 100 according to the first modified example. The above-mentioned embodiment illustrates the case where the magnetic treatment device 100 is directly attached to the conduit 1 (only the above-mentioned integration process), whereas this modified example differs in that it includes various processes resulting from the cutting out of a portion of the conduit (external conduit) 1.

First, as shown in FIG. 18(a), in the separation process, a cut portion 1C (a portion of the conduit 1 between the water-cooled motor 2 and the circulation pump 4 in FIG. 1) is cut off to separate the conduit (external conduit) 1 into an inlet side external conduit 1A into which the cooling water flows in and an outlet side external conduit 1B into which the cooling water flows out (separation process).

Next, as shown in FIG. 18(b), the internal conduit 10 is connected to the inlet side external conduit 1A and the outlet side external conduit 1B in place of the cut portion 1C (replacement process, connection process). The internal conduit 10 is a conduit with a smaller diameter than the inlet side external conduit 1A and the outlet side external conduit 1B.

In this modification, when the diameter of each of the external conduits 1A, 1B (external conduit 1) is "1", the diameter of the internal conduit 10 is "0.8". Specific methods of this connection step include, for example, the following (1) to (3). In short, the connection step is sufficient as long as each of the external conduits 1A, 1B and the internal conduit 10 are connected in a watertight state without leakage of cooling water. As shown in FIG. 19(a), it is preferable to perform a chamfering step of chamfering the inner peripheral edge at both ends of the internal conduit 10 to form a chamfered portion R before the connection step. In this case, as shown in FIG. 19(b), when the internal conduit 10 is connected to the inlet side external conduit 1A and the outlet side external conduit 1B, the connection portion W between the inner peripheral wall of the inlet side conduit 1A and the outlet side conduit 1B and the inner peripheral wall of the internal conduit 10 becomes a continuous smooth curve, which allows the cooling water to flow smoothly back through the conduit.
(1) The two ends of the internal conduit 10 are press-fitted into the inlet external conduit 1A and the outlet external conduit 1B, respectively.
(2) Weld both ends of the internal conduit 10 to the inlet external conduit 1A and the outlet external conduit 1B.
(3) Both ends of the internal conduit 10 are bonded to the inlet side external conduit 1A and the outlet side external conduit 1B.

Next, as shown in FIG. 18(c), an inlet side packing member 400 that prevents cooling water from leaking between the inlet side conduit 1A and the internal conduit 10 and has a magnetic shielding effect is attached between the inlet side conduit 1A and the internal conduit 10 (inlet side installation process), and an outlet side packing member 450 that prevents cooling water from leaking between the outlet side conduit 1B and the internal conduit 10 and has a magnetic shielding effect is attached between the outlet side conduit 1B and the internal conduit 10 (outlet side installation process).

20, the inlet packing member 400 (outlet packing member 450) is composed of a sheet-like packing part 401 (451) having elasticity such as rubber, which packs between the inlet conduit 1A and the internal conduit 10, and a plate-like magnetic shielding plate 403 (453) made of a material having magnetic shielding effect such as a high magnetic permeability material such as metal (e.g., iron) and higher rigidity than the first cover 250, which are integrated by bonding their surfaces together. In addition, in FIG. 20, the reference numeral 403a (453a) denotes a screw hole for screwing the inlet packing member 400 (outlet packing member 450) to the flange surface of the inlet conduit 1A (outlet conduit 1B), and the reference numeral 403b (453b) denotes an insertion hole for inserting the internal conduit 10.

Next, as shown in FIG. 18(d), with the internal conduit 10 interposed between the first division 200 and the second division 300 and between the inlet side packing member 400 and the outlet side packing member 450, the first division 200 and the second division 300 are brought into contact with each other (performing the integration process described in the above embodiment), thereby attaching the magnetic treatment device 100 to the internal conduit 10.

In this modified example, the internal conduit 10, which has a smaller diameter than each of the external conduits 1A, 1B (external conduit 1), is connected to each of the external conduits 1A, 1B through the replacement process and the connection process, thereby making it possible to increase the flow rate of the cooling water in the inlet side external conduit 1A when it flows into the internal conduit 10. This increases the cooling capacity of the cooling water (improves the efficiency of heat exchange), reduces pump failures and strain, and prevents dirt from accumulating inside the piping, thereby extending the lifespan and preventing a decrease in the flow rate.

In this modified example, when the diameter of each of the external conduits 1A and 1B (external conduit 1) is 1, the diameter of the internal conduit 10, which is smaller than the diameter of each of the external conduits 1A and 1B (external conduit 1), is set to 0.8. However, this is not limited to this, and when the diameter of each of the external conduits 1A and 1B (external conduit 1) is 1, the diameter of the smaller internal conduit 10 (hereinafter referred to as "K") may be anywhere in the range of 0.4 to 1 (0.4≦K≦1), and more preferably anywhere in the range of 0.75 to 0.85 (0.75≦K≦0.85). If the value is greater than 1 (in other words, the internal conduit 10 has a larger diameter than the conduit 1), there is almost no change in the cooling effect and improvement in flow rate, while if it is less than 0.4, it becomes difficult for the cooling water to flow from the external conduit 1A to the internal conduit 10, which results in the flow of the cooling water being stagnated. Furthermore, when the range is set to "0.75≦K≦0.85", it is possible to achieve a more favorable cooling effect and improved flow rate than with other values (hereafter referred to simply as "Effect A").

Regarding this effect, a test was conducted to examine the relationship between the cooling capacity and flow rate of the cooling water depending on the ratio of the diameters of the external conduits 1A, 1B and the internal conduit 10, and the results are shown in Table 1. In this test, water was used as the cooling water, and external conduits 1A, 1B with a diameter of 2 cm were used. As a result of this test, as shown in Table 1 below, when "0.75≦K≦0.85" was set, effect A was achieved more favorably than other values, when "0.4≦K<0.75" and "0.85<K≦1" were set, effect A was achieved to a certain extent, although it was inferior to "0.75≦K≦0.85", and when "0<K<0.4" and "1<K" were set, effect A was hardly or not achieved at all.

◯: Excellent effect A is present △: Inferior to ◯ but has effect A ×: Almost no or no effect A at all

In addition, by the integration process according to this modified example, the Y1 side, Y2 side, Z1 side, and Z2 side in the exterior part 110 are covered by the first reinforcing members 107 and 109, which have a magnetic shielding effect, and the X1 side and X2 side in the exterior part 110 are covered by the inlet side packing member 400 and the outlet side packing member 450, which have a magnetic shielding effect. In other words, the first reinforcing members 107 and 109, the second reinforcing members 111 and 113, the inlet side packing member 400, and the outlet side packing member 450 constitute a magnetic shielding section that shields the pair of magnets from magnetic fields. As a result, the X1 side, X2 side, Y1 side, Y2 side, Z1 side, and Z2 side of the pair of magnets in the exterior part 110 are all magnetically shielded, so that a closed space of the magnetic force of the pair of magnets can be formed. As a result, it is possible to further prevent the magnetic force of the pair of magnets inside the exterior part 110 from extending to the outside of the exterior part 110, which is a place that does not need to be magnetized.

Figure 21 is a schematic diagram of a magnetic treatment device 100 according to a second modified example. This second modified example differs from the above-mentioned embodiment in that the magnetic treatment device 100 has multiple exterior parts 110. That is, in the above-mentioned embodiment, as shown in FIG. 21(a), a magnetic treatment device 100 having a single exterior part 110 is attached to a conduit 1. In addition, in the first magnet 103 arranged in this exterior part 110, the upper half is an S pole and the lower half is an N pole, while in the second magnet 105, the upper half is an S pole and the lower half is an N pole. In contrast, this modified example differs in that it illustrates an example in which the magnetic treatment device 100 is configured by two exterior parts 110, as shown in FIGS. 21(b) and (c).

21(b) shows a schematic diagram of two exterior parts 110, 110 arranged along the conduit 1 in contact with each other. As shown in FIG. 21(b), the exterior part 110 on the X1 side (hereinafter sometimes simply referred to as the "left side") is arranged so that the first division body 200 is located on the Z1 side (hereinafter sometimes simply referred to as the "upper side") and the second division body 300 is located on the Z2 side (hereinafter sometimes simply referred to as the "lower side"), while the exterior part 110 on the X2 side (hereinafter sometimes simply referred to as the "right side") is arranged so that the second division body 300 is located on the upper side and the first division body 200 is located on the lower side. In other words, the exterior part 110 on the left side is arranged in the state shown in FIG. 21(a), while the exterior part 110 on the right side is arranged so that the top and bottom are reversed with respect to the state shown in FIG. 21(a).

In two adjacent exterior parts 110, 110, the upper first division 200 of the left exterior part 110 and the upper second division 300 of the right exterior part 110 are adjacent to each other so as to face each other from the left to the right (in the X1 and X2 directions), and the lower second division 300 of the left exterior part 110 and the lower first division 200 of the right exterior part 110 are adjacent to each other so as to face each other from the left to the right.

21(b) and 21(c), in the following description, the first magnet 103 of the exterior part 110 on the left side is referred to as the "first magnet 103 on the left side" and the second magnet 105 is referred to as the "second magnet 105 on the left side." Similarly, the second magnet 103 of the exterior part 110 on the right side is referred to as the "second magnet 103 on the right side" and the first magnet 103 is simply referred to as the "second magnet 103 on the right side."

In the state shown in FIG. 21(b), the X2 side of the first magnet 103 on the left side and the X1 side of the second magnet 105 on the right side face each other. In other words, the upper half (south pole) of the X2 side of the first magnet 103 on the left side and the upper half (north pole) of the X1 side of the second magnet 105 on the right side face each other with opposite poles, and the lower half (north pole) of the X2 side of the first magnet 103 on the left side and the lower half (south pole) of the second magnet 105 on the right side face each other with opposite poles. Similarly, the upper half (south pole) of the X2 side of the second magnet 105 on the left side and the upper half (north pole) of the first magnet 103 on the right side, the lower half (north pole) of the X2 side of the second magnet 105 on the left side and the lower half (south pole) of the first magnet 103 on the X1 side face each other with opposite poles.

As a result, an attractive magnetic field acts between the first division 200 on the left side and the second division 300 on the right side, and between the second division 300 on the left side and the first division 200 on the right side, causing the left exterior part 110 and the right exterior part 110 to move closer to each other (see arrows B and C in Figure 21 (b)). As a result, the X2 side surface of the left exterior part 110 and the X1 side surface of the right exterior part 110 come into contact.

By arranging the two exterior parts 110 as shown in FIG. 21(b), not only the first division 200 and the second division 300 of the left and right exterior parts 110, 110 come into contact with each other (a contact state due to the attractive force of the magnetic field in the vertical direction as seen in FIG. 21(b)), but also the left exterior part 110 comes into contact with the right exterior part 110 (a contact state due to the attractive force of the magnetic field in the horizontal direction as seen in FIG. 21(b)). This makes it possible to further prevent the magnetic treatment device 100 consisting of the two exterior parts 110 from falling off the conduit 1.

Figure 21(c) shows a schematic diagram of two exterior parts 110, 110 arranged along the conduit 1 with a distance between them. As shown in Figure 21(c), the left exterior part 110 is arranged with the first division 200 located on the upper side and the second division 300 located on the lower side, while the right exterior part 110 is also arranged with the first division 200 located on the upper side and the second division 300 located on the lower side. In other words, both the left and right exterior parts 110, 110 are arranged in the state shown in Figure 21(a).

In FIG. 21(c), in two adjacent exterior parts 110, 110, the upper first division 200 of the left exterior part 110 and the upper second division 300 of the right exterior part 110 are adjacent to each other so as to face each other from the left to the right, and the lower second division 300 of the left exterior part 110 and the lower first division 200 of the right exterior part 110 are adjacent to each other so as to face each other from the left to the right.

In this state, the X2 side of the first magnet 103 on the left side and the X1 side of the first magnet 103 on the right side face each other. In other words, the upper half (S pole) of the X2 side of the first magnet 103 on the left side and the upper half (S pole) of the X1 side of the first magnet 103 on the right side face each other with the same poles, and the lower half (N pole) of the X2 side of the first magnet 105 on the left side and the lower half (N pole) of the first magnet 103 on the right side face each other with the same poles. Similarly, the upper half (S pole) of the X2 side of the second magnet 105 on the left side and the upper half (S pole) of the second magnet 105 on the right side face each other with the same poles, and the lower half (N pole) of the X2 side of the second magnet 105 on the left side and the lower half (N pole) of the second magnet 105 on the X1 side face each other with the same poles.

Therefore, a repulsive force of the magnetic field acts between the first division body 200 on the left side and the second division body 300 on the right side, and between the second division body 300 on the left side and the first division body 200 on the right side, and the left exterior part 110 and the right exterior part 110 move in a direction away from each other (see arrows D and E in FIG. 21(c)). As a result, the X2 side surface of the left exterior part 110 and the X1 side surface of the right exterior part 110 are in a separated state (not in contact). In FIG. 21(c), the symbol S1 is a stopper that prevents the left and right exterior parts 110 from moving in the X1 direction or the X2 direction, and the distance between the left and right exterior parts 110 can be adjusted by adjusting the position of this stopper S1. In addition, the symbol S2 is a stopper that prevents the left and right exterior parts 110 from rotating in the circumferential direction of the conduit 1 due to the attractive force of a pair of magnets housed in each of them.

When it is desired to arrange the left and right exterior parts 110, 110 apart from the conduit 1, there is no need to provide a spacer or the like between the two exterior parts 110, 110; simply arranging the two exterior parts 110 as shown in FIG. 21(c) allows the two exterior parts 110 to be maintained apart by the repulsive force of a pair of magnets, making it easy to install them apart.

Figure 22 is a schematic diagram of a magnetic processing device 100 according to variant 3. The above-mentioned embodiment and variants 1 and 2 use a first magnet 103 and a second magnet 105 whose south and north poles are separated from each other (Z1 and Z2 directions) as shown in Figure 21 (a), whereas variant 3 differs in that it uses a first magnet 503 and a second magnet 505 whose south and north poles are separated from each other (Z1 and Z2 directions) as shown in Figure 22 (a).

22(a), the first magnet 503 of the first divided body 200 in the exterior part 110 has an S pole on the left half and an N pole on the right half as viewed in FIG. 22(a). Similarly, the second magnet 505 of the second divided body 300 in the exterior part 110 has an N pole on the left half and an S pole on the right half. In other words, the left half of the first magnet 503 and the left half of the second magnet 505 face each other with opposite poles, and the right half of the first magnet 503 and the right half of the second magnet 505 face each other with opposite poles. Therefore, magnetic field attraction is generated between the left half of the first magnet 503 and the left half of the second magnet 505, and between the right half of the first magnet 503 and the right half of the second magnet 505, and the first divided body 200 and the second divided body 300 maintain a contact state. Even with this configuration, the same effects as those of the above-mentioned embodiment and each modified example are achieved.

Furthermore, it is possible to use multiple exterior parts 110 shown in FIG. 22(a) as in the above-mentioned modified example 2. That is, as shown in FIG. 22(b), the exterior part 110 on the left side is arranged so that the first division 200 is located on the upper side and the second division 300 is located on the lower side, while the exterior part 110 on the right side is also arranged so that the first division 200 is located on the upper side and the second division 300 is located on the lower side. In other words, both the left and right exterior parts 110, 110 are arranged in the state shown in FIG. 22(a).

In two adjacent exterior parts 110, 110, the upper first division 200 of the left exterior part 110 and the upper first division 200 of the right exterior part 110 face each other laterally, and the lower first division 300 of the left exterior part 110 and the lower first division 200 of the right exterior part 110 face each other laterally.

In this state, the X2 side of the first magnet 503 on the left side faces the X1 side of the first magnet 503 on the right side. In other words, the X2 side (north pole) of the first magnet 503 on the left side faces the X1 side (south pole) of the first magnet 503 on the right side with opposite poles facing each other, and the X2 side (south pole) of the second magnet 505 on the left side faces the X1 side (north pole) of the second magnet 505 on the right side with opposite poles facing each other.

As a result, an attractive magnetic field acts between the first division 200 on the left side and the first division 200 on the right side, and between the second division 300 on the left side and the second division 300 on the right side, causing the left exterior part 110 and the right exterior part 110 to move closer to each other (see arrows B and C). As a result, the X2 side surface of the left exterior part 110 and the X1 side surface of the right exterior part 110 come into contact. This also produces the same effect as variant 2 shown in FIG. 21(b).

On the other hand, it is also possible to arrange the two exterior parts 110 as shown in FIG. 21(c). That is, as viewed in FIG. 21(c), the left exterior part 110 is arranged so that the first divided body 200 is located on the upper side and the second divided body 300 is located on the lower side, while the right exterior part 110 is arranged so that the second divided body 300 is located on the upper side and the first divided body 200 is located on the lower side. In other words, the left exterior part 110 is arranged in the state shown in FIG. 22(a), while the right exterior part 110 is arranged so that its upside down is reversed with respect to the state shown in FIG. 22(a).

In two adjacent exterior parts 110, 110, the upper first division 200 of the left exterior part 110 and the upper second division 300 of the right exterior part 110 face each other laterally, and the lower second division 300 of the left exterior part 110 and the lower second division 200 of the right exterior part 110 face each other laterally.

In this state, the X2 side of the first magnet 503 on the left side faces the X1 side of the second magnet 505 on the right side. In other words, the X2 side (north pole) of the first magnet 103 on the left side faces the X1 side (north pole) of the second magnet 505 on the right side with the same poles facing each other, and the X2 side (south pole) of the second magnet 505 on the left side faces the X1 side (south pole) of the first magnet 503 on the right side with the same poles facing each other.

As a result, a repulsive magnetic field acts between the first division 200 on the left side and the second division 300 on the right side, and between the second division 300 on the left side and the first division 200 on the right side, causing the left exterior part 110 and the right exterior part 110 to move in directions away from each other (see arrows D and E). As a result, the X2 side surface of the left exterior part 110 and the X1 side surface of the right exterior part 110 are separated (not in contact). This also produces the same effect as variant 2 shown in FIG. 21(c).

In this embodiment, a water-cooling system 1 for cooling a motor with cooling water is shown as an example, but is not limited to this.

In this embodiment, the magnetic treatment device 100 is attached to the conduit 1 so that the first divided body 200 is disposed on the Z1 side of the conduit 1 and the second divided body 300 is disposed on the Z2 side of the conduit 1, but it goes without saying that this is not limited to this. For example, the magnetic treatment device 100 may be attached to the conduit 1 so that the first divided body 200 is disposed on the Y1 side of the conduit 1 and the second divided body 300 is disposed on the Y2 side of the conduit 1.

In addition, in this embodiment and each modified example, a single first magnet and a single second magnet are used, but this is not limited thereto, and it goes without saying that multiple first magnets and multiple second magnets may be used, and the number of first magnets and second magnets is not particularly limited. Specifically, in the present embodiment as an example, multiple first magnets 103 (second magnets 105) may be stacked vertically (stacked in the Z1 direction or Z2 direction), or multiple first magnets 103 (second magnets 105) may be arranged in parallel (arranged so as to be aligned along any of the X1 direction, X2 direction, Y1 direction, and Y2 direction). Here, when multiple first magnets 103 (second magnets 105) are arranged in parallel, it is preferable to provide a partition wall (partition rib) made of a material having the above-mentioned magnetic shielding effect between adjacent first magnets 103 (second magnets 105) in order to prevent the mutual influence of the magnetic forces of adjacent first magnets 103 (second magnets 105).

In addition, in this embodiment and each of the modified examples, multiple first reinforcing members and multiple second reinforcing members are used, but this is not limited to this, and it goes without saying that a single first reinforcing member and a single second reinforcing member may be used, and there is no particular limit to the number of first reinforcing members and second reinforcing members.

In this embodiment, a separation process is provided in which a portion of the conduit 1 is cut off and separated, but instead of this separation process, a squeezing process may be performed in which pressure is applied to a portion of the conduit 1 (e.g., squeezing) to make the diameter of that portion of the conduit 1 smaller than that of other portions. Also, in this embodiment, the attachment method for the magnetic treatment device generally includes a "separation process, replacement process, connection process, inlet side attachment process, outlet side attachment process, and integration process," but among these, the "inlet side attachment process and outlet side attachment process" may be omitted and the "separation process, replacement process, connection process, and integration process" may be provided, or only the integration process may be performed (in this case, the integration process is performed on the conduit 1 shown in FIG. 1).

1 Conduit 1A Inlet side conduit 1B Outlet side conduit 10 Internal conduit 100 Magnetic processing device 101 Insertion hole 103 First magnet 105 Second magnet 107, 109 First reinforcing member 111, 113 Second reinforcing member 110 Exterior part 200 First divided body 200A First side wall part 200e First contact wall part 200f First opposing wall part 203 First contact surface 205 First contact surface 207 First groove part 209 First convex part 211 First recess part 211b First notch part 300 Second divided body 300A Second side wall part 300e Second contact wall part 300f Second opposing wall part 303 Second contact surface 305 Second contact surface 307 Second groove part 309 Second convex part 311 Second recess 311b Second notch 400 Inlet side packing member 450 Outlet side packing member

Claims (5)

an insertion hole through which a non-magnetic conduit can be inserted;
A pair of magnets arranged opposite each other with the insertion hole in between;
and an exterior part housing the pair of magnets,
The pair of magnets are arranged so that opposite poles face each other,
A magnetic treatment device that applies magnetism to a fluid flowing inside the conduit inserted into the insertion hole by a magnetic field generated by the pair of magnets,
the exterior portion includes a first divided body that houses one of the pair of magnets and a second divided body that houses the other of the pair of magnets,
the first divided body has a first contact surface that comes into contact with the second divided body, and a first groove portion, a first protrusion portion, and a first recess portion are formed on the first contact surface;
the second divided body has a second contact surface that comes into contact with the first divided body, and a second groove portion, a second protrusion portion, and a second recess portion are formed on the second contact surface;
when the entire first protrusion fits into the second recess and the entire second protrusion fits into the first recess, the first contact surface and the second contact surface come into contact with each other, and the insertion hole is formed by the first groove portion and the second groove portion,
The magnetic processing device according to claim 1, wherein the contact state is maintained by the attractive force of the magnetic field. A first cutout portion having a step shape is formed in the first recess,
A second recess is formed with a stepped second notch,
the first convex portion abuts against the twelfth notch and the second convex portion abuts against the twelfth notch, whereby the first contact surface and the second contact surface are in a non-contact state where they are not in contact with each other,
2. The magnetic processing apparatus according to claim 1, wherein the non-contact state is maintained by an attractive force of the magnetic field. the first divided body includes a first side wall portion constituting a portion of an outer wall of the exterior portion that covers the periphery of the one magnet, a first opposing wall portion constituting a portion of the outer wall of the exterior portion that faces the first contact surface, and a first contact wall portion of the outer wall of the exterior portion that has the first contact surface,
the second divided body includes a second side wall portion constituting a portion of the outer wall of the exterior portion that covers the periphery of the other magnet, a second opposing wall portion constituting a portion of the outer wall of the exterior portion that faces the second contact surface, and a second contact wall portion of the outer wall of the exterior portion that has the second contact surface,
A reinforcing member that reinforces the exterior is provided within the exterior,
the reinforcing member includes a first reinforcing member provided between the first opposing wall portion and the one magnet to reinforce the first divided body, and a second reinforcing member provided between the second opposing wall portion and the other magnet to reinforce the second divided body,
3. The magnetic processing device according to claim 1, wherein the first reinforcing member and the second reinforcing member are made of a material having a magnetic shielding effect, thereby serving as a magnetic shielding portion that magnetically shields the pair of magnets. The housing includes a plurality of the housings according to claim 1,
A magnetic treatment device characterized in that the one exterior part and the other exterior part among the multiple exterior parts are arranged along the conduit so that the pair of magnets of the one exterior part and the pair of magnets of the other exterior part have opposite poles to each other. The housing includes a plurality of the housings according to claim 1,
A magnetic treatment device characterized in that the one exterior part and the other exterior part among the multiple exterior parts are arranged along the conduit so that the pair of magnets of the one exterior part and the pair of magnets of the other exterior part have the same poles.

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