阅读说明：本技术 电磁阀以及冷冻循环系统 (Solenoid valve and refrigerating circulation system ) 是由 铃木龙介 横田健久 于 2019-05-07 设计创作，主要内容包括：本发明提供一种电磁阀以及冷冻循环系统,能够以简单的结构来减轻闭阀时产生的冲击载荷。阀芯(6)与柱塞(4)能够在压缩弹簧(7)对阀芯(6)给予闭阀力并且阀芯(6)与抵接面(431)抵接的第一抵接状态、和阀芯(6)与限制部件(44)抵接的第二抵接状态之间在Z方向上相对移动。由此,从阀芯(6)落座至限制柱塞(4)向Z方向下方移动的期间,柱塞(4)的动能被消散。因此,能够以简单的结构来减轻闭阀时产生的冲击载荷。(The present invention provides a kind of solenoid valve and refrigerating circulation system, the shock loading that can be generated when mitigating valve closing in simple structure.Spool (6) and plunger (4) can be compressed spring (7) give valve closed force to spool (6) and relatively moves in z-direction between the first abutting state that spool (6) is abutted with bearing surface (431) and the second abutting state that spool (6) is abutted with limiting component (44).It takes a seat below to limitation plunger (4) to Z-direction during movement from spool (6) as a result, the kinetic energy of plunger (4) is dissipated.Therefore, the shock loading that can be generated when mitigating valve closing in simple structure.)

1. a kind of solenoid valve, has:

Valve body forms valve chamber；

The plunger tube of tubular is connect with the valve body；

Plunger is configured in above-mentioned plunger tube；

Valve seat is configured in above-mentioned valve chamber；And

Attractor is configured at the opposite side of above-mentioned valve seat across above-mentioned plunger and is fixed on above-mentioned plunger tube,

Above-mentioned solenoid valve is characterized in that having:

Spool is set to the end of the above-mentioned valve seat side of above-mentioned plunger and takes a seat and disseat relative to the valve seat；And

Compressed spring pushes above-mentioned attractor and and another side pushes above-mentioned spool to the spool by side at one end Valve closed force is given,

Above-mentioned plunger includes the through hole for the insert of above-mentioned compressed spring；And above-mentioned valve seat is configured at relative to the through hole Side and the spool incorporating section for storing above-mentioned spool,

Above-mentioned spool incorporating section includes the attractor side abutting part abutted from above-mentioned attractor side with above-mentioned spool；And from upper The valve seat side abutting part that valve seat side is abutted with above-mentioned spool is stated,

Above-mentioned spool can abutted with above-mentioned attractor side abutting part first abut state and with above-mentioned valve seat side abutting part It is relatively moved on opening and closing direction between the second abutting state abutted with above-mentioned plunger.

2. solenoid valve according to claim 1, which is characterized in that

Above-mentioned spool includes the portion of taking a seat abutted with above-mentioned valve seat；And the load abutted with above-mentioned attractor side abutting part is held By portion,

It is above-mentioned to take a seat portion and when above-mentioned load receiving portion is formed in from above-mentioned opening and closing direction nonoverlapping position.

3. solenoid valve according to claim 1 or 2, which is characterized in that

Liquid passes through in above-mentioned valve chamber.

4. a kind of refrigerating circulation system is the refrigerating circulation system for including compressor, condenser, expansion valve and evaporator, It is characterized in that,

Use solenoid valve described in 3 any one of claims 1 to 3 as above-mentioned expansion valve.

Technical field

The present invention relates to solenoid valve and refrigerating circulation systems.

Background technique

Generally, in the refrigerating circulation system of the air conditioners such as cabinet type air regulator, room air conditioner, electricity is used Magnet valve is as expansion valve.As such solenoid valve, proposition has by having plunger, attractor and reset spring (compression bullet Spring) it is opened and closed the technology of movement (for example, referring to patent document 1).In the solenoid valve documented by patent document 1, reset The end of spring is connect with plunger, and spool is set to plunger front end.If to attractor excitation, plunger is pulled to attractor And spool disseats and valve opening from valve seat, if making attractor demagnetization, plunger is mobile to valve seat side due to the valve closed force of reset spring, Valve land in valve seat and valve closing.At this point, being connect via spring with plunger by spool, the impact sound of Lai Shixian spool and valve seat Reduction.

Summary of the invention

Problems to be solved by the invention

However, in the solenoid valve documented by patent document 1, even if can reduce impact sound, it is also difficult to when mitigating valve closing The shock loading of generation.I.e., by being equipped with spring between spool and plunger, although shock loading slightly mitigates, due to multiple Position spring is abutted with plunger, therefore when plunger stopped mobile when valve closing, the recuperability of reset spring also acts on plunger, thus The shock loading that the kinetic energy of shock loading and spool that the kinetic energy of plunger generates generates substantially is applied to valve seat simultaneously, to be easy Generate big shock loading.

The purpose of the present invention is to provide a kind of shock loadings that can be generated when mitigating valve closing in simple structure Solenoid valve and the refrigerating circulation system for having used the solenoid valve.

Solution for solving the problem

Solenoid valve of the invention has: valve body, forms valve chamber；The plunger tube of tubular is connect with the valve body；Column Plug, is configured in above-mentioned plunger tube；Valve seat is configured in above-mentioned valve chamber；And attractor, it is configured across above-mentioned plunger In above-mentioned valve seat opposite side and be fixed on above-mentioned plunger tube, above-mentioned solenoid valve is characterized in that having: spool, be set to it is upper It states the end of the above-mentioned valve seat side of plunger and takes a seat and disseat relative to the valve seat；And compressed spring, by one end Side pushes above-mentioned attractor and pushes above-mentioned spool in another side and give valve closed force to the spool, and above-mentioned plunger includes For the through hole of above-mentioned compressed spring insert；And above-mentioned valve seat side is configured at relative to the through hole and stores above-mentioned spool Spool incorporating section, above-mentioned spool incorporating section includes the attractor side abutting part abutted from above-mentioned attractor side with above-mentioned spool； And the valve seat side abutting part abutted from above-mentioned valve seat side with above-mentioned spool, above-mentioned spool can be abutted with above-mentioned attractor side It is being opened between first abutting state of portion's abutting and the second abutting state abutted with above-mentioned valve seat side abutting part with above-mentioned plunger It closes on direction and relatively moves.

According to such present invention, the shock loading that the kinetic energy of shock loading and plunger that the kinetic energy of spool generates generates is such as Valve seat is applied to as described below.When attractor is unmagnetized, spool is by the valve closed force of compressed spring to valve seat side It is mobile.At this point, spool abuts (second abuts state) with the valve seat side abutting part of plunger.Plunger follows spool and to valve as a result, Seat side is mobile.Later, valve land is in valve seat, spool and plunger can the first abutting state with second abut between state Opening and closing relatively moves on direction, therefore even if plunger also continues the movement to valve seat side because of inertia after valve land.It Afterwards, the attractor side abutting part of plunger abuts with spool and (becomes first and abut state), and plunger stops.In valve land in valve seat Later, plunger is not attached the valve closed force of compressed spring, therefore in the mobile stopping of plunger, i.e., becomes the first abutting state When, compared with the case where directly applying the load of compressed spring to plunger, the inertia force of plunger becomes smaller.

In addition, plunger, when the second abutting state is abutted with first and moved between state, the indoor fluid of valve becomes resistance, Kinetic energy is dissipated and (obtains buffering effect).Especially, the case where space of spool side is primary side (high-pressure side) in valve chamber Under, the flowing of fluid is disconnected in valve seat by valve land, so that internal pressure rises, buffering effect becomes larger.Later, the suction of plunger Introduction side abutting part abuts with spool and (becomes first and abut state), and the movement of plunger is limited.The movement of plunger is limited in this way When processed, the shock loading that the kinetic energy of plunger generates is applied to valve seat via spool, but the kinetic energy is lowered.It therefore, can be with letter Single structure is come the shock loading that generates when mitigating valve closing.

At this point, preferably above-mentioned spool includes the portion of taking a seat abutted with above-mentioned valve seat in solenoid valve of the invention；And The load receiving portion abutted with above-mentioned attractor side abutting part, it is above-mentioned to take a seat portion and above-mentioned load receiving portion is formed in from above-mentioned and opens Close nonoverlapping position when the observation of direction.

According to this structure, it can reduce the shock loading that valve seat is applied to by the kinetic energy of plunger.I.e., as spool from The load receiving portion of the load bearing part of plunger and as spool to valve seat apply load part portion of taking a seat from opening and closing side To being staggered when observation, shear stress is in spool.Thereby, it is possible to the elasticity using spool to make its deflection deformation etc., make spool Shock loading is absorbed, to lower the shock loading for being applied to valve seat.

In addition, preferred liquid passes through in above-mentioned valve chamber in solenoid valve of the invention.According to this structure, Neng Gouzeng Resistance when plunger is mobile in valve seat since valve land greatly.Especially, the space of spool side is that primary side is (high in valve chamber Press side) in the case where, it is capable of increasing the rising of valve land internal pressure caused by valve seat.Therefore, it is easy to make the kinetic energy of plunger to decline, The shock loading generated when can further mitigate valve closing.

Refrigerating circulation system of the invention is the refrigerating cycle system for including compressor, condenser, expansion valve and evaporator System, which is characterized in that use solenoid valve described in any of the above-described as above-mentioned expansion valve.According to such present invention, such as It is upper described, the shock loading generated when can reduce valve closing, it is difficult to damage spool and valve seat.Accordingly, it is difficult to generate fluid Leakage, is able to suppress the decline of the running efficiency of refrigerating circulation system.

The effect of invention

Solenoid valve according to the present invention, compressed spring gives valve closed force to spool, and spool can be opened and closed with plunger It is relatively moved on direction, the shock loading generated when so as to mitigate valve closing.

Detailed description of the invention

Fig. 1 is the cross-sectional view for indicating the solenoid valve of an embodiment of the invention.

Fig. 2 is the cross-sectional view for indicating the form for the case where making attractor excitation in above-mentioned solenoid valve.

Fig. 3 is the cross-sectional view for indicating to make in above-mentioned solenoid valve the form after above-mentioned attractor demagnetization.

Fig. 4 is to indicate that valve land is in the cross-sectional view of the form of valve seat in above-mentioned solenoid valve.

Fig. 5 is the cross-sectional view for indicating the form of the movement in above-mentioned solenoid valve by above-mentioned spool limitation plunger.

Fig. 6 is the schematic arrangement figure for indicating to have used the refrigerating circulation system of above-mentioned solenoid valve.

In figure:

1-solenoid valve, 2-valve bodies, 21-valve seats, 2A-valve chamber, 3-plunger tubes, 4-plungers, 41-through holes, 431-bearing surfaces (attractor side abutting part), 44-limiting components (valve seat side abutting part), 5-attractors, 6-spools, 613-take a seat portion, 621-load receiving portions, 7-compressed springs.

Specific embodiment

Hereinafter, based on attached drawing, various embodiments of the present invention will be described.As shown in Figure 1, the electromagnetism of present embodiment Valve 1 have valve body 2, plunger tube 3, plunger 4, attractor 5, spool 6, compressed spring 7,8, connectors 9 of electromagnetic coil and Secondary connector 10.In the present embodiment, the opening and closing direction (direction of action) of spool 6 is set as Z-direction, it will be with Z-direction substantially Orthogonal both direction is set to X-direction and Y-direction.

Valve body 2 is formed as the cylindrical shape extended along Z-direction, and valve chamber 2A is formed on the inside of it.In valve body 2, supply The opening of the insert of plunger tube 3 ground connection is formed in one side side of Z-direction (hereinafter referred to as upside), connects for an insert of connector 9 Opening be formed in side, for the insert of secondary connector 10 the opening that connects is formed in Z-direction another party side (under hereinafter referred to as Side).

Valve body 2 is provided integrally with valve seat 21 in valve chamber 2A.The valve port 211 of valve seat 21 is connected to secondary connector 10. Be seated at valve seat 21 by spool 6, thus valve chamber 2A be divided into the space being connected to a connector 9 and with secondary connector 10 The space of connection.In addition, protrusion 212 annular in shape, dashes forward when being formed with from Z-direction upside in the front end of valve seat 21 The upper surface for playing portion 212 becomes valve seat.In addition, in the present embodiment, the internal diameter of protrusion 212 is interior with valve port 211 Diameter is roughly equal, but can also form such as stage portion, tapered portion in the inside diameter of the valve port 211 of the lower part of protrusion 212, The structure different from the internal diameter of valve port 211 as the internal diameter of protrusion 212.In addition, in the present embodiment, valve seat and valve master Body is integrally formed, but may be alternatively configured the valve seat formed seperatedly with valve body and be accommodated in the indoor structure of valve.

Plunger tube 3 is formed as the cylindrical shape extended along Z-direction, and guidance plunger 4 is moved along Z-direction.The lower end of plunger tube 3 with Valve body 2 connects.The upper end of plunger tube 3 occlusion of openings and being equipped with attractor 5.

Plunger 4 is formed as along the cylindric of Z-direction extension, and has the outer diameter more slightly smaller than the internal diameter of plunger tube 3.In column The central portion of plug 4 is formed with the through hole 41 extended along Z-direction and the intercommunicating pore of outer peripheral surface is connected to and extended to through hole 41 42.I.e., ratio plunger 4 in plunger tube 3 space against the top by the outer peripheral surface of through hole 41, intercommunicating pore 42 and plunger 4 with The gap of the inner peripheral surface of plunger tube 3, and be connected to than the space (valve chamber 2A) of plunger 4 on the lower.

The cylindric spool incorporating section 43 of storage spool 6 is formed in the lower end of plunger 4.Spool incorporating section 43 it is interior Diameter is bigger than the internal diameter of through hole 41, and the bearing surface 431 towards downside of spool incorporating section 43 is from (5 side of attractor) on the upside of Z-direction It is abutted with spool 6, becomes attractor side abutting part.In addition, riveting is fixed with circular in the lower end of spool incorporating section 43 Limiting component 44, limiting component 44 are abutted from (21 side of valve seat) on the downside of Z-direction with spool 6, become valve seat side abutting part.Plunger 4 Upper end have central portion project to the step shape more against the top than peripheral part.

Attractor 5 is formed as blocking the cover shape of the opening of the upper end of plunger tube 3, passes through the electromagnetic wire to configuration on the outside Circle 8 is powered and excitation, by stopping the demagnetization that is powered.Attractor 5 generates the attraction for plunger 4 and being excited.This Outside, the electric current of size as the valve opening force bigger than the valve closed force of compressed spring 7 is generated in the flowing of electromagnetic coil 8.

It is formed with recess portion 51 in the lower surface of attractor 5, and in central portion, is fixed with the resin such as PTFE in recess portion 51 The sound attenuation features 52 of system.In valve opening, the upper end of plunger 4 is abutted in the central portion of step shape with sound attenuation features 52.

Spool 6 is formed such as the resin as PTFE, and is made of the path plectane portion of the major diameter plectane portion on top and lower part. Protrusion 611 is protruded from the central portion of the lower surface 61 in major diameter plectane portion, which becomes path plectane portion.Spool 6 it is big The outer diameter in diameter plectane portion is more slightly smaller than the internal diameter of the spool incorporating section 43 of plunger 4, is accommodated in the spool 6 of spool incorporating section 43 along Z The mobile mode in direction is guided.It is located at the limit of the peripheral portion 612 and plunger 4 around protrusion 611 in the lower surface 61 of spool 6 Component 44 processed abuts.It protrusion 611, being capable of opening by limiting component 44 since its outer diameter is smaller than the internal diameter of limiting component 44 Mouthful, and there is the portion 613 of taking a seat abutted with the protrusion 212 of valve seat 21.The upper surface 62 of spool 6 has and spool incorporating section 43 Bearing surface 431 abut load receiving portion 621.

Thickness (the Z-direction size in major diameter plectane portion) L1 of part in spool 6 comprising peripheral portion 612 is supported than plunger 4 Junction 431 is small in the interval L2 of Z-direction with limiting component 44.Therefore, spool 6 can be in bearing surface in spool incorporating section 43 It is moved between 431 and limiting component 44 along Z-direction.I.e., spool 6 abutted with bearing surface 431 first abut state and with limit It can be relatively moved in z-direction with plunger 4 between the second abutting state that component 44 processed abuts.

The outer diameter of the protrusion 212 of valve seat 21 is smaller than the internal diameter of the through hole 41 of plunger 4.I.e., the portion 613 of taking a seat of spool 6 Radially inner side is leaned on positioned at weight/HP ratio receiving portion 621, portion 613 of taking a seat when becoming from Z-direction is not be overlapped with load receiving portion 621 Configuration.

It is coil spring that is axial and extending that compressed spring 7, which is with Z-direction, as under one end 71 of upper end and attractor 5 The sound attenuation features 52 in portion abut, and abut as the other end 72 of lower end with the upper surface 62 of spool 6.I.e., compressed spring 7 is at one end 71 sides push attractor 5 and push spool 6 in 72 side of the other end.In addition, compressed spring 7 both can be with attractor 5 and valve Core 6 directly abuts, can also sandwich other components between.Compressed spring 7 in the state that spool 6 is seated at valve seat 21 at For from the compressed state of nature.Compressed spring 7 gives valve closed force to spool 6 as a result, (to the power below Z-direction).Pressure The outer diameter of contracting spring 7 is more slightly smaller than the internal diameter of the through hole 41 of plunger 4.In addition, with Z-direction and the substantially uniform side of vertical direction In the case that formula uses solenoid valve 1, the gravity in valve closing direction is acted in plunger 4 and spool 6, hereinafter, for ease of description, closing Valve power is only generated by compressed spring 7.

To being described in detail for the movement of above such solenoid valve 1.If being powered to electromagnetic coil 8 to make attractor 5 Excitation, then plunger 4 is pulled to attractor 5.I.e., valve opening force (towards the power above Z-direction) is generated, plunger 4 is to above Z-direction It is mobile.It is abutted by the limiting component 44 of plunger 4 with spool 6, so that spool 6 follows plunger 4 to movement above Z-direction.At this point, The valve closed force that compressed spring 7 generates is acted in spool 6, but plunger 4 and spool 6 and the valve closed force are on the contrary to Z-direction top It is mobile.Plunger 4 abuts the movement stopped upwards by upper end with sound attenuation features 52, and solenoid valve 1 becomes as shown in Figure 2 The state of complete valve opening.In addition, spool 6 abuts with limiting component 44 and becomes second and abut shape in the state of complete valve opening State.

Then, if stopping the energization to electromagnetic coil 8 and making 5 demagnetization of attractor, the attraction of attractor 5 disappear (or Person dies down), (or dying down) is disappeared via the valve opening force that plunger 4 is applied to spool 6.Therefore, as shown in figure 3, spool 6 passes through pressure The valve closed force of contracting spring 7 is mobile to Z-direction lower section.If spool 6 is supported to movement below Z-direction, limiting component 44 with spool 6 It connects, thus plunger 4 follows spool 6 to movement below Z-direction.In this way, when spool 6 and plunger 4 mobile to Z-direction lower section, dimension Hold the second abutting state.

Spool 6 is seated at valve seat 21 and moving to Z-direction lower section as shown in Figure 4, what the kinetic energy of spool 6 generated Impact is applied to valve seat 21.If spool 6 is seated at valve seat 21, the stream from 9 side of connector towards secondary 10 side of connector is disconnected The flowing of body, the internal pressure in the space of 6 side of spool rises in valve chamber 2A.It opposite in z-direction can be moved by spool 6 and plunger 4 It is dynamic, so that plunger 4 continues the movement below Z-direction also by inertia after spool 6 is taken a seat.At this point, plunger 4 is not subject to press The valve closed force of contracting spring 7, but kinetic energy dissipation is made with mobile by the resistance of the fluid in valve chamber 2A.Also, due to valve The internal pressure in the space of 6 side of spool rises in the 2A of room, therefore the resistance of fluid becomes larger, and kinetic energy is easy to dissipate.

If plunger 4 is to movement below Z-direction, as shown in figure 5, bearing surface 431 abuts with spool 6 and becomes first and abut State, limits the movement of plunger 4, and solenoid valve 1 becomes the state of valve closing.At this point, the impact that the kinetic energy of plunger 4 generates is applied to valve Seat 21, but from the time point that spool 6 is taken a seat to become the first abutting state (halted state of plunger 4) during, due to not right Plunger 4 gives the power of compressed spring 7 and plunger 4 bears the resistance of the fluid in valve chamber 2A, therefore is applied to spool 6 and valve The impact force reducing of the plunger of seat 21.As described above, the on-off being powered by switching to electromagnetic coil 8, thus 6 phase of spool Valve seat 21 is taken a seat and disseated, switches valve opening state and closed valve state.

As shown in fig. 6, the freezing of the air conditioner such as set on cabinet type air regulator, room air conditioner of solenoid valve 1 Circulation 100.In Fig. 6, symbol 200 is mounted in the outdoor heat exchanger of outdoor unit, and symbol 300 is mounted in indoor unit Indoor heat exchanger, symbol 400 are the flow channel switching valves for constituting four-way valve, and symbol 500 is compressor.Solenoid valve 1, outdoor heat exchanger 200, indoor heat exchanger 300, flow channel switching valve 400 and compressor 500 are connected by conduit as illustrated respectively, constitute heat The refrigerating cycle of pump type.In addition, the illustration omitted such as accumulator, pressure sensor, temperature sensor.In refrigerating cycle 100, electricity Magnet valve 1 is functioned as expansion valve, and entrance side recycles liquid refrigerant.I.e., liquid passes through the valve chamber 2A of solenoid valve 1.

According to such present embodiment, there is effect below.I.e., compressed spring 7 gives valve closed force to spool 6, and And spool 6 can relatively move in z-direction with plunger 4, thus taken a seat from spool 6 to limitation plunger 4 to moving below Z-direction During dynamic, the kinetic energy of plunger 4 is dissipated.Therefore, the shock loading that can be generated when mitigating valve closing in simple structure.

In addition, taking a seat portion 613 and when load receiving portion 621 is formed in from Z-direction nonoverlapping position by spool 6 It sets, so as to reduce the shock loading for being applied to valve seat 21 by the kinetic energy of plunger 4.I.e., it bears to carry from plunger 4 as spool 6 The load receiving portion 621 of the part of lotus is seen to the portion 613 of taking a seat of the part of the application load of valve seat 21 from Z-direction with as spool 6 It is staggered when examining, shear stress is in spool 6.Thereby, it is possible to make it generate deflection deformation etc. using the elasticity of spool 6, make valve Core 6 absorbs shock loading, to reduce the shock loading for being applied to valve seat 21.

In addition, liquid passes through in valve chamber 2A, when so as to increase the movement of plunger 4 since spool 6 is seated at valve seat 21 Resistance.And the space of 6 side of spool is primary side in valve chamber 2A, therefore is capable of increasing spool 6 and is seated at caused by valve seat 21 Internal pressure rise.Therefore, it is easy to make the kinetic energy of plunger 4 to decline, the shock loading generated when can further mitigate valve closing.

In addition, the spool 6 and valve seat 21 of resin collide when valve closing, and the spool 6 of resin and plunger 4 collide, It i.e., is not mobile structure to be limited by the mutual collision of metal parts, therefore be able to suppress the generation of metallic sound.

In addition, plunger 4 is abutted in the first abutting state with second can move relatively in z-direction between state with spool 6 It is dynamic, to ensure the idling stopping distance of plunger 4 in valve opening movement, generate kick movement.I.e., in 1 valve closing of solenoid valve, such as Fig. 5 Shown to become the first abutting state, for plunger 4 to when moving above Z-direction, plunger 4 is not subject to compression bullet in 5 excitation of attractor Preset distance is moved to the load of spring 7, therefore limiting component 44 abuts with spool 6 and (becomes second and abut state).Pass through utilization Spool 6 is set to disseat to the strength (kick movement) of the plunger 4 of Z-direction top movement, so as to make valve opening movement become good It is good.

In addition, applying the opportunity of load to valve seat 21 by spool 6, applying the opportunity mistake of load to valve seat 21 with plunger 4 It opens and there are the time differences, is once applied to the shock loading of valve seat 21 so as to reduce, and impact sound can be reduced.

In addition, the present invention is not limited to above embodiment, the other structures comprising can be realized the purpose of the present invention Deng, it is as shown below as deformation etc. be also included in the present invention.

For example, in the above-described embodiment, the portion 613 of taking a seat of spool 6, which is formed in load receiving portion 621 from Z-direction, to be seen Nonoverlapping position when examining, but the case where the kinetic energy of plunger 4 is adequately dissipated, spool easy compressive deformation in z-direction And under the case where being easy absorption shock loading etc., portion of taking a seat is overlapping when can also be from Z-direction with load receiving portion.

In addition, in the above-described embodiment, being made into liquid by the structure in valve chamber 2A, but also can be made gas and pass through The indoor structure of valve.I.e., used fluid is properly selected according to purposes of refrigerating circulation system etc..

In addition to this, optimum structure for carrying out the present invention, method etc. disclose in above record, but the present invention is simultaneously It is not limited to this.I.e., the present invention has mainly carried out special diagram to specific embodiment and has been illustrated, but as long as The thought of technology of the invention and the range of purpose are not departed from, those skilled in the art can be directed to embodiment described above Various modifications are subject to shape, material, quantity and other detailed structures.Therefore, disclosed above to define shape, material The record of matter etc. be for easy understanding the present invention and illustratively record, limit the present invention, eliminate these shapes, material Deng the record of title of component of restriction of a part or whole of restriction be included in the present invention.