WO2008010525A1 - manchon de protection d'une ligne de cuivre pour moteur - Google Patents

manchon de protection d'une ligne de cuivre pour moteur Download PDF

Info

Publication number
WO2008010525A1
WO2008010525A1 PCT/JP2007/064202 JP2007064202W WO2008010525A1 WO 2008010525 A1 WO2008010525 A1 WO 2008010525A1 JP 2007064202 W JP2007064202 W JP 2007064202W WO 2008010525 A1 WO2008010525 A1 WO 2008010525A1
Authority
WO
WIPO (PCT)
Prior art keywords
protective sleeve
sleeve
copper wire
comparative example
compression
Prior art date
Application number
PCT/JP2007/064202
Other languages
English (en)
Japanese (ja)
Inventor
Shu Niwa
Original Assignee
N.I.Teijin Shoji Co., Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by N.I.Teijin Shoji Co., Ltd filed Critical N.I.Teijin Shoji Co., Ltd
Publication of WO2008010525A1 publication Critical patent/WO2008010525A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04C—BRAIDING OR MANUFACTURE OF LACE, INCLUDING BOBBIN-NET OR CARBONISED LACE; BRAIDING MACHINES; BRAID; LACE
    • D04C1/00—Braid or lace, e.g. pillow-lace; Processes for the manufacture thereof
    • D04C1/06—Braid or lace serving particular purposes
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/30—Windings characterised by the insulating material
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/32—Windings characterised by the shape, form or construction of the insulation
    • H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas

Definitions

  • the present invention relates to a copper wire protective sleeve for a motor that covers and protects the outside of a copper wire such as a motor coil.
  • Bundling string H has been proposed.
  • Patent Document 1 Japanese Patent Laid-Open No. 8-13300
  • Patent Document 1 For example, in Patent Document 1 above, two multifilaments of polyethylene naphthalate (PEN) are lined up and assembled into a square punching structure with 8 strokes using a stringing machine as a cleaning agent for oils. A motor binding string scoured at 60 ° C for 20 minutes using sodium alkylbenzene sulfonate is disclosed. Examples of Patent Document 1 include multifilaments having a total fineness of 250 denier and 48 filaments (single yarn fineness of 5 to 6 denier), and total fineness of 1000 denier and 192 filaments (single It is described that the yarn fineness is 5 to 6 denier.
  • PEN polyethylene naphthalate
  • the opening 11 of the protective sleeve S10 has a flat shape in a normal state and is protected in the motor manufacturing process.
  • the conventional protective sleeve S10 as shown in FIG. 18 is a cause of lowering work efficiency because, for example, it is difficult to insert the copper wire of the coil unless a cap-shaped jig is used. .
  • Patent Document 2 JP 2001-123324 A
  • the protective sleeve made of monofilament as disclosed in Patent Document 2 has a problem that it is not suitable as a copper wire protective sleeve for a motor because it lacks flexibility.
  • the conventional protective sleeve made of monofilament lacks flexibility, so there is a risk that it will break at the folded position and the position force may leak, resulting in poor insulation. was there.
  • protective sleeves made of monofilaments have poor insulation performance even in normal conditions because when they are knitted into a sleeve, the stitches are coarse due to the large single yarn diameter and the gaps are large. There was also a problem of high risk of electric leakage. Further, the protective sleeve made of monofilament has a problem that it is inferior in oil resistance at high temperature.
  • a multifilament is used as a protective sleeve that can insert a copper wire without using a jig and is excellent in high temperature oil resistance.
  • a protective sleeve having a structure in which mofilin is mixed has been proposed.
  • Patent Document 3 Japanese Patent Application Laid-Open No. 2004-176243
  • the protective sleeve of Patent Document 3 is a mixture of a synthetic filament multifilament having a melting point or decomposition temperature of 280 ° C or higher and a monofilament, and is formed into a cylindrical braid of 24 beats or more.
  • Examples include multifilaments with a total fineness of 440dtex and 100 filaments (single yarn fineness of 4-5dtex) and total filaments of 220dtex and 100 filaments (single yarn fineness of 2 ⁇ 3dtex stuff) is listed to use! RU
  • Monofilaments with a diameter of 0.25 mm are used.
  • the protective sleeve of Patent Document 3 is made of a mixture of thin and multifilaments, for example, so as to fill a gap in a thick monofilament having a diameter of about 0.25 mm. As shown in FIG. 19, irregularities peculiar to monofilaments are recognized on the surface 22 and the inner surface 23 of the sleeve.
  • the protective sleeve S20 of Patent Document 3 has a drawback in that the single filament fineness of the multifilament is as thin as 2 to 5 dtex, so that it is easy to fluff due to poor durability against abrasion and abrasion.
  • the shape of the distal end portion 21 of the sleeve is round.
  • the insertability of the copper wire at the tip 21 is improved, but in the process of inserting the copper wire into the back of the sleeve, the tip of the copper wire has a recess characteristic of the monofilament. Hook force on the convex part, or hook force on the fuzzy part peculiar to thin multifilament with single yarn fineness of 2-5dtex, or force that can be inserted smoothly, or copper wire
  • the tip force might protrude outside the S sleeve.
  • the protective sleeve S20 of Patent Document 3 uses a monofilament and a multifilament, and therefore has a high elastic force in the range of 67 to 93% of the compression elastic modulus of the sleeve.
  • Fig. 20 (a) shows a state in which the protective sleeve S20 of Patent Document 3 is pressed between the thumb and forefinger, and
  • Fig. 20 (b) shows a state in which the state force of (a) is also released.
  • the conventional protective sleeve S20 has a strong resilience that immediately restores its original shape when the finger is released from the pressed state!
  • a motor is designed with a width dimension based on the position of the binding string H in FIG.
  • the protective sleeve of Patent Document 3 is strong in resilience, the area around the part pressed by the tying string swells and becomes bulky, and the surrounding position swells more than the position of the tying string H, which is unexpected. The dimension was taken up, which was a factor that hindered the compact toy of the motor.
  • the protective sleeve of Patent Document 3 has a problem that the conformity of the protective sleeve swells and becomes bulky when bound with a binding string.
  • FIG. 21 shows (a) the length L21 in a normal state of the protective sleeve of Patent Document 3, (b) the length L22 when pulled in the left-right direction, and the length when pushed in the center direction.
  • L23 is illustrated, as shown in FIG. 21, the protective sleeve of Patent Document 3 has a large stretchability, and there is a problem that adjustment work when inserting a copper wire is troublesome.
  • the motor copper wire has a range that must be covered with a protective sleeve and a range that does not need to be covered. From the viewpoint of cost reduction, the protective sleeve may be omitted in the range that does not need to be covered.
  • Patent Document 3 since the protective sleeve of Patent Document 3 is formed by mixing multifilaments and monofilaments having different rigidity, it is necessary to attach a weight of different weight to the bobbin to maintain tension when braiding. There is also a drawback that the manufacturing method becomes complicated. In addition, fluff unique to multifilaments with a single yarn fineness of 2 to 5 dtex may cause electric leakage.
  • the present invention has been made to solve the above-described conventional problems.
  • the cylindrical shape is maintained, and a copper wire can be easily inserted without using a jig.
  • the inner surface of the sleeve is smooth and does not catch the tip of the copper wire, and it is compatible after insertion of the copper wire, so that it does not become bulky when tied with a tie.
  • the purpose is to provide a copper wire protective sleeve for a motor that is moderate in strength and stretchability and that can easily adjust the area covered by the sleeve.
  • a copper wire protective sleeve for a motor of the present invention comprises:
  • the most important feature is that multiple multifilaments with a single yarn fineness range of 19dtex or more and 88dtex or less and a filament count of 4 or more and 30 or less are aligned and round-knitted in a cylindrical shape. .
  • the protective sleeve of the present invention is composed of a thick multifilament having a single yarn fineness of 19 dtex or more and 88 dtex or less, a cylinder in which a copper wire can be inserted without using a jig.
  • a cylinder in which a copper wire can be inserted without using a jig.
  • the surface inside the sleeve is smooth, and the tip of the copper wire is not caught in the process of inserting the copper wire. Since the compression force is low and the conformability is high, the binding string does not swell when bound with a binding string, and it fits well.
  • the elasticity is moderate, it is easy to manually adjust the area covered by the sleeve.
  • FIG. 1 is a diagram for explaining the external appearance of a copper wire protective sleeve for a motor according to the present invention.
  • FIG. 2 is a view for explaining the conformability of the copper wire protective sleeve for a motor of the present invention, where (a) shows a state where the sleeve is pressed between the thumb and forefinger, and (b) shows a state force of (a). It shows the state of releasing a finger.
  • FIG. 3 is a diagram for explaining the stretchability of the copper wire protective sleeve for motors of the present invention, where (a) shows a normal state, (b) shows a state where both ends are pulled in the left-right direction, and (c) Represents the state where both ends are pushed in the center direction.
  • FIG. 4 is a diagram for explaining a state in which a copper wire of a stator score coil of a motor of a hybrid vehicle is inserted into a conventional copper wire protective sleeve for a motor and bound to a motor with a binding string.
  • FIG. 5 is a graph showing the test results of mean coefficient of friction (MIU), where (a) shows data of Example 1 and (b) shows data of Examples 1-2.
  • MIU mean coefficient of friction
  • FIG. 6 is a graph showing test results of average friction coefficient (MIU) of Example 2.
  • FIG. 7 is a graph showing the test results of mean coefficient of friction (MIU), where (a) shows data for Comparative Example 1 and (b) shows data for Comparative Example 2.
  • MIU mean coefficient of friction
  • FIG. 8 is a graph showing the test results of mean coefficient of friction (MIU), where (a) shows data for Comparative Example 3 and (b) shows data for Comparative Example 4.
  • MIU mean coefficient of friction
  • FIG. 9 is a graph showing the compression recovery rate test results, where (a) shows data for Example 1 and (b) shows data for Example 1-2.
  • FIG. 10 is a graph showing the test results of the compression recovery rate of Example 2.
  • FIG. 11 is a graph showing the compression recovery rate test results, where (a) shows data for Comparative Example 1 and (b) shows data for Comparative Example 2.
  • FIG. 12 is a graph showing the compression recovery rate test results.
  • (A) is the data of Comparative Example 3, and (b) is the data of Comparative Example 4.
  • FIG. 13 is a graph showing the results of repeated compression tests, in which (a) shows data for Example 1 and (b) shows data for Example 12.
  • FIG. 14 is a graph showing the results of repeated compression tests of Example 2.
  • FIG. 15 is a graph showing the results of repeated compression tests, where (a) is for Comparative Example 1 and (b) is for comparison. Example 2 data.
  • FIG. 16 is a graph showing the results of repeated compression tests, where (a) shows data for Comparative Example 3 and (b) shows data for Comparative Example 4.
  • FIG. 17 is a diagram for explaining a test method of an insulation performance test.
  • FIG. 18 is a view for explaining the appearance of a conventional copper wire protective sleeve for motors composed only of multifilaments.
  • FIG. 19 is a diagram for explaining the external appearance of a conventional copper wire protective sleeve for a motor having a configuration in which multifilaments and monofilaments are mixed and formed.
  • FIG. 20 is a diagram for explaining the resilience of the conventional copper wire protective sleeve for a motor shown in FIG. 19, where (a) shows a state where the sleeve is pressed between the thumb and forefinger, and (b) shows a state where (a) It represents the state where the finger is released from the state.
  • FIG. 21 is a diagram for explaining the stretchability of the conventional copper wire protective sleeve for a motor shown in FIG. 19, where (a) shows a normal state, (b) shows a state where both ends are pulled in the left-right direction, and (c ) Represents the state where both ends are pushed toward the center.
  • the copper wire protective sleeve for a motor of the present invention has a single yarn fineness in the range of 19 dtex or more and 88 dtex or less, and a plurality of multifilaments in the range of several filaments or more and 30 or less are aligned to form a cylindrical shape.
  • a round braided braid is
  • the inventor has found that it is important to use a single filament fineness and a multifilament in order to solve the above-mentioned problems.
  • the invention was completed. That is, if the single yarn fineness is within the range of 19 dtex or more and 88 dtex or less, and the number of filaments is 30 or more, the sleeve has a round cross section, so even without using a special jig, In addition to the insertion of copper wire, it is possible to avoid fuzzing peculiar to multifilaments with fine single yarn fineness.
  • the inner surface of the sleeve becomes a sliding force, so that the tip does not get caught when a copper wire is inserted. Insert smoothly to the end Can. Also, when binding with a binding string, the compression recovery rate is low and the conformability is high compared to the conventional protective sleeve of Patent Document 3, so that it does not become bulky. Since the stretching force is moderately low, the position covered by the sleeve can be easily adjusted.
  • the reason why the number of filaments is in the range of 4 or more and 30 or less is that when the number of filaments is 3 or less, the productivity is lowered and it is difficult to manufacture the protective sleeve industrially at low cost.
  • the melt residence time becomes longer, and there is a risk of inducing yarn breakage in the yarn making process due to thermal deterioration.
  • the number of filaments is 31 or more, entangled portions are generated during running of the yarn due to friction between the yarns Z yarns, and there is a possibility of inducing uneven drawing or uneven heat treatment between single fibers.
  • the preferred number of filaments is 10 to 20.
  • the protective sleeve of the present invention has a single yarn fineness in the range of 19 dtex or more and 88 dtex or less, and a force in the range of the number of filaments in the range of 30 to 30.
  • the combination of the force single yarn fineness and the number of filaments is as described above. Each can be freely determined within the range.
  • the sleeve has a circular cross-section, and the sleeve is smooth and can be smoothly inserted into a copper wire.
  • the protective sleeve of the present invention is more preferably configured such that the compression recovery rate is 37% or less in the compression recovery rate test. This is because, if the compression recovery rate is further set to 37% or less under the above conditions, the conformability when binding to the motor after inserting the copper wire will be optimal.
  • the material of the multifilament used in the protective sleeve of the present invention is not particularly limited.
  • high temperature oil resistance is required.
  • Polyphenylene sulfide fibers are known to cause almost no problems when used at high temperatures due to their excellent heat resistance and hydrolytic resistance, and their chemical resistance is comparable to that of fluororesin. Therefore, it is preferable.
  • the protective sleeve of the present invention is formed by aligning a plurality of multifilaments having the above conditions and round-knitting them into a cylindrical shape.
  • the number to be arranged is not particularly limited as long as it is appropriately determined according to the type of motor to be applied and the required performance.
  • a sleeve with an appropriate hardness can be obtained by aligning two or three multifilaments with the above conditions and round-knitting.
  • the number of carriers of a machine that performs round knitting yarn is generally 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 64, 96, etc.
  • the number of carriers that can be selected according to the required diameter of the protective sleeve is not particularly limited.
  • the number of carriers of 32 or more is usually selected and a protective sleeve having a diameter of 5 mm or more is braided.
  • a method of braiding into a cylindrical shape is used.
  • the present invention exhibits a particularly advantageous effect when it is necessary to increase the diameter of the protective sleeve (specifically, when the number of carriers is 20 strokes or more). This is because, even in the case of multifilaments, if the number of carriers is 12 to 16 and the diameter of the protective sleeve is small, the sleeve is likely to be cylindrical, but if the number of carriers is 20 or more, This is because it becomes difficult to braid the cylindrical protective sleeve.
  • the present invention is particularly suitable for a protective sleeve for a motor of a hybrid vehicle in which, for example, the number of carriers of 32 or more is usually selected and a protective sleeve having a diameter of 5 mm or more is used.
  • the inner diameter of the copper wire protective sleeve for a motor of the present invention is not particularly limited because the optimum value varies depending on the type and size of the motor to be applied.
  • a protective sleeve for a motor of a novel and hybrid automobile it can be configured as a cylindrical sleeve having an inner diameter of 7 to 8 mm.
  • a protective sleeve for a motor of a home appliance it can be configured as a cylindrical sleeve having an inner diameter of 5 to 7 mm.
  • the surface characteristics were measured by scanning under conditions of a static load of 50 gf and a roughness static load of lOgf.
  • the mean coefficient of friction (MIU) is an index for determining slipperiness. The smaller this value, the easier the surface of the fabric slips.
  • Friction coefficient variation (MMD) is an index of smoothness and represents the average deviation of the friction coefficient. The smaller the value, the smoother the surface of the fabric (the smaller the variation of the protective sleeve assembly). It is shown that.
  • the compression force was measured at a low speed of lcmZ seconds, and the characteristics of the sleeve when a force of 1KN was applied were measured.
  • the compression tester can graph the compression characteristics before reaching 1KN and the compression characteristics when reaching 1KN and returning.
  • the compression resilience (RC) value is defined as the compression recovery rate (%).
  • the compression recovery rate (%) indicates that the closer to 100, the stronger the recovery rate of the protective sleeve and the lower the conformability.
  • the remaining 3 mm compressive load (N) was measured with a universal tensile tester (constant speed extension type tensile tester) using a compression test jig with a diameter of 50 mm. Specifically, the initial pressure plate distance (before applying the load) was set to the sample diameter + 1 mm, and the load (N) was measured when the pressure plate distance was 3 mm at a speed lOmmZmin. Then, compression was performed at three locations where the influences at both ends of the sample disappeared, and the average value was calculated.
  • the displacement (mm) at 0.1 N during repeated compression was measured using a compression test jig with a pressure surface diameter of 50 mm. Specifically, the initial pressure plate distance (before applying the load) is set to the sample diameter + lmm, and compression is performed at a speed lOmmZmin until the pressure plate distance reaches lmm. The compression position is the center of the sample. Then, compression was repeated 5 times, and the difference between the 15th compression and the first compression was calculated for the displacement (mm) at 0.1 N.
  • Example 1-2, Example 2, and Example 3 are examples of the protective sleeve of the present invention.
  • Comparative Example 1 Comparative Example 2, Comparative Example 2-2, Comparative Example 3, Comparative Example 3-2
  • Comparative Example 4 is an example of a conventional protective sleeve.
  • the obtained protective sleeve S has a tip 1 in a normal state. It had a circular shape and a cylindrical shape with an inner diameter of about 7 mm was maintained. In addition, the protective sleeve S had no irregularities on the surface 2 of the sleeve 2 and the surface 3 of the inside of the sleeve, and had no fuzz at all.
  • FIG. 2 (a) shows a state in which the protective sleeve S of Example 1 is pressed between the thumb and the index finger, as shown in FIG.
  • (b) shows the state force of (a) when the finger is released.
  • the protective sleeve S of Example 1 has a state where it is pressed with a finger. Even when the finger is released, the shape of the pressed part remains, and the resilience is small and the conformability is high. confirmed.
  • FIG. 3 shows (a) the length L1 in the normal state of the protective sleeve of Example 1, (b) the length L2 in the state pulled in the left-right direction, and the length in the state pushed in the center direction.
  • L3 is illustrated, but as shown in FIG. 3, the protective sleeve of Example 1 is less stretchable than the protective sleeve of Patent Document 3.
  • the copper wire of the motor has a range that must be covered with a protective sleeve and a range that does not need to be covered. From the viewpoint of cost reduction, the protective sleeve may be omitted in the range that does not need to be covered. As shown in FIG. 31, it was confirmed that the protective sleeve 1 was easy to adjust the range covered by the protective sleeve because of its moderate stretchability.
  • the protective sleeve S of the embodiment cut to a length of about 10 to 40 cm has a round cross section, the copper wire of the motor coil that does not require a special jig. could be inserted easily. After that, when tying the protective sleeve with the coil inserted with the tie cord, the sleeve S is highly compatible, so the area around the part pressed by the tie cord does not swell and become bulky. Dimensional design was possible at the position.
  • Example 1-2 A braided sleeve having an inner diameter of about 8 mm under the same conditions as in Example 1 was designated as Example 1-2. As in Example 1, the obtained protective sleeve was maintained in a cylindrical shape in a normal state. The surface characteristics, conformability and stretchability were the same as in Example 1.
  • multifilaments single yarn fineness: 22dtex, total fineness: 440dtex, 20 filaments
  • Polyethylene naphthalate fiber made by Teijin Fibers (trade name), melting point
  • 48 multifilaments single yarn fineness: 8 dtex, total fineness: 890 dtex, 108 filaments, Q904M type
  • decomposition temperature 272 ° C
  • Comparative Example 2 Under the same conditions as in Comparative Example 2, a braided sleeve with an inner diameter of about 8 mm was designated as Comparative Example 2-2.
  • Comparative Example 3-2 A braided sleeve with an inner diameter of about 8 mm under the same conditions as in Comparative Example 3 was designated as Comparative Example 3-2.
  • the protective sleeve of Comparative Example 4 is formed by mixing multifilaments so as to fill the gaps of the monofilament with a diameter of 0.25 mm, the monofilament is unique on the sleeve surface. Asperities were observed.
  • the protective sleeve of Comparative Example 4 had fluffing that had poor durability against abrasion and abrasion due to abrasion due to the fineness of the multifilament single yarn being as thin as 2 dtex.
  • Example 1 Example 12, Example 2, Comparative Example 1, Comparative Example 2, Comparative Example 2-2, Comparative Example 3, Comparative Example 3-2 produced as described above, Using the protective sleeve of Comparative Example 4, the strength of the protective sleeve (N) and elongation (%), surface characteristics (average friction coefficient (MIU), coefficient of friction variation (MMD)), The compression recovery rate (%), compression load (N), and displacement (mm) at 0.1 N during repeated compression were measured. The test results are shown in Tables 1 and 2. [0069] [Table 1]
  • Example 2 becomes 1014 (N)
  • the elongation (%) of the protective sleeve of the present invention is 3.4 (%) in Example 1 and 3.1 (%) in Example 1-2 in the case of 10N load.
  • Example 2 is 4.1 (%),
  • the average friction coefficient (Ml U) is 0.126 in Example 1 and 0.138 in Examples 1 and 2.
  • Example 2 has a value of 0.173, and has a characteristic that the surface of the cloth is easy to slip. It was confirmed that As for the coefficient of friction variation (MMD), Example 1 is 0.0328, Example 1-2 is 0.0419, Example 2 is 0.0378, and Comparative Example 4 corresponding to Patent Document 3 is used. Compared with a value of 0.0581, it was confirmed that the surface of the fabric with a small value was smooth (the variation of the protective sleeve assembly was small). Therefore, according to the protective sleeve of the present invention, the tip of the copper wire is not hung during insertion of the copper wire, and the copper wire can be smoothly inserted to the end.
  • FIG. 5 (a) shows Example 1
  • FIG. 5 (b) shows Example 1 1-2
  • FIG. 6 shows Example 2
  • FIG. 7 (a) shows Comparative Example 1
  • FIG. 8B is a graph showing the average friction coefficient (MIU) test results of Comparative Example 2
  • FIG. 8A is of Comparative Example 3
  • FIG. 8B is of Comparative Example 4.
  • FIG. The vertical axis of each graph indicates the average friction coefficient (MIU), and the horizontal axis indicates the distance (cm).
  • the width of the upper and lower amplitudes is increased over the entire scanning range
  • the graph of Example 2 of FIG. 6 shows a small width of the upper and lower amplitudes. Even from this point, it can be confirmed that the surface of the protective sleeve of Example 1, Example 1 2.
  • Example 2 is slippery and smooth.
  • the compression recovery rate (%) of the protective sleeve of the present invention is 28.01 (%) in Example 1 and 28.42 (%) in Example 1-2.
  • Example 2 is 36.97 (%), and compared with Comparative Example 4 corresponding to Patent Document 3 is 50.08 (%), the compression recovery rate is small and the compatibility is high. Was confirmed. Therefore, according to the protective sleeve of the present invention, the When binding with a bundled string, the periphery does not swell and become bulky, so it is possible to accurately design the dimensions at the position of the bundled string.
  • FIG. 9 (a) shows Example 1
  • Fig. 9 (b) shows Example 1-2
  • Fig. 10 shows Example 2
  • Fig. 11 (a) shows Comparative Example 1
  • FIG. 12B is a graph showing the compression characteristic test results of Comparative Example 2
  • FIG. 12A is of Comparative Example 3
  • FIG. The vertical axis represents the compressive load P (gfZcm2)
  • the horizontal axis represents the sample thickness T (mm).
  • X represents the forward graph until compression to the maximum compression load Pm, and the return graph when the Y force maximum compression load position force also returns. Yes.
  • WC is the energy required to compress to the maximum compression load Pm, and in the example of Fig. 9 (a), it is represented by the area surrounded by ABC in the forward path X.
  • WC ′ is the recovery energy in the compression recovery process, and is represented by the area of the part surrounded by ABC in the return path Y in the example of FIG. 9 (a). If it is a perfect elastic body, the value of R C is 100%, and the smaller the value, the higher the compatibility. As described above, the protective sleeve of the present invention does not bulge and become bulky when bound with a binding string, so that the dimensions can be accurately designed at the position of the binding string. Note that the compression recovery rate of 2 in the example is 36.97%, rounded off to the nearest 1%, 37%. In the present invention, as in Examples 1 and 2, it is more desirable to set the compression recovery rate to 37% or less.
  • the compression load (N) of the protective sleeve of the present invention is 7.6 in Example 1.
  • Example 1-2 is 8.4 (N)
  • Example 2 is 4.1 (N)
  • Comparative Example 4 corresponding to Patent Document 3 is 17.
  • O (N) Compared to the above, it was confirmed that the repulsive force was high and the compatibility was high even from this point that the compressive load was small.
  • FIG. 13 (a) is a diagram of Example 1
  • FIG. 13 (b) is a diagram of Example 1-2
  • FIG. 14 is a diagram of Example 2
  • FIG. 15 (a) is a diagram of Comparative Example 1.
  • 15 (b) is a graph showing the results of the repeated compression test of Comparative Example 2
  • FIG. 16 (a) is of Comparative Example 3
  • FIG. 16 (b) is the graph of Comparative Example 4.
  • the vertical axis represents load (N), and the horizontal axis represents displacement (mm).
  • the protective sleeve of Example 1 becomes a depression of 1.125 mm in the first compression, and thereafter, 3.184 mm, the third compression in the second compression.
  • the displacement is 3.509mm
  • the third compression is 3.699mm
  • the fifth compression is 3.809mm.
  • the displacement of the first time is standardized by Omm, and after the second time, the difference from the first time is obtained and displayed.
  • the protective sleeve of the present invention is in a dent state as it is repeatedly compressed by a repulsive force S smaller than the protective sleeve of Comparative Example 4. It is clear that the compatibility is high.
  • the present inventor confirmed the insulating performance of the protective sleeve of the present invention by using the protective sleeves of Example 2, Comparative Example 3, and Comparative Example 4.
  • the test method is as follows.
  • a stainless steel rod having the same diameter as the sample inner diameter of each protective sleeve was inserted, placed on the cylindrical lower electrode, and a lead wire was connected to the upper electrode.
  • the voltage was increased at a constant rate that caused breakdown of the sample by applying a voltage for 10 to 20 seconds (short-time pressure increase method), and the breakdown voltage was measured.
  • the test conditions are as follows.
  • Test items dielectric breakdown voltage, partial discharge voltage
  • Test equipment Insulation resistance test equipment PCT-5K (manufactured by Tokyo Transformer)
  • Test piece dimensions ⁇ 7mm X 100mm
  • Electrode shape Upper electrode ⁇ 7mm X 110mm
  • Electrode material Upper electrode stainless steel
  • Table 3 shows the measurement results of the dielectric breakdown voltage and partial discharge voltage of the sleeve in the air
  • Table 4 shows the measurement results of the insulation breakdown voltage and partial discharge voltage of the sleeve in oil.
  • the creeping discharge start voltage was the voltage at which air discharge was visually confirmed
  • the breakdown voltage was the voltage at the time the sample was carbonized.
  • creeping discharge did not occur in the measurement in oil.
  • Example 3 where the single yarn fineness is 22dtex, the total fineness force is S440dtex, and the number of filaments is 20, the same as in Example 1, Example 1-2, and Example 2, the multifilament and the monobloam Compared to conventional protective sleeves that use a combination of rubber, it is possible to obtain protective sleeves that have high conformability and moderate stretchability.
  • the protective sleep of Example 1, Example 1 1-2, Example 2, and Example 3 has a single yarn fineness of 22 dtex or more and 36 dtex or less, and a filament.
  • Two multifilaments of 12 or more and 20 or less are aligned, set in a round punched braided 48 string making machine, and rounded braided into a cylindrical shape, making copper wires easy without using a jig
  • the inner surface of the sleeper is smooth, the tip of the copper wire is not caught, the tension is fine, the fineness of the single yarn is fine, and the fluff peculiar to multifilaments is not seen.
  • the power disclosed in the example in which the single yarn fineness is 22 dtex or 36 dtex and the number of filaments is 12 or more and 20 or less is disclosed.
  • the wire protection sleeve is not limited to this. According to various studies by the present inventor, if the single yarn fineness is in the range of 19 dtex or more and 88 dtex or less, and the number of filaments is in the range of 30 or more, the sleeve has a round cross section. The shape of the sleeve and the inside of the sleeve are smooth so that the copper wire can be inserted smoothly, and the elasticity and flexibility are moderate compared to conventional protective sleeves that mix multifilaments and monofilaments.
  • the copper wire protective sleeve for motors of the present invention is not limited to motors for automobiles such as motors for hybrid cars, motors for electric cars, and motors for diesel cars, but motors for household appliances such as air-conditioners and refrigerators, and power It can also be applied to motors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

Pour obtenir un manchon de protection d'une ligne de cuivre pour moteur qui permet de maintenir une forme cylindrique, d'insérer aisément une ligne de cuivre, d'avoir une surface intérieure lisse sur laquelle l'extrémité de la ligne de cuivre ne s'accroche pas et la ligne de cuivre s'ajuste après avoir été insérée, d'avoir des caractéristiques appropriées de dilatation et de contraction et de permettre à un utilisateur d'ajuster aisément la plage recouverte par le manchon, l'invention propose d'utiliser un multifilament dont le degré de fibres d'un monofil et compris dans une plage non inférieure à 19 dtex et non supérieure à 88 dtex et le nombre de filaments est compris dans la plage supérieure à 4 et inférieure à 30. Plusieurs multifilaments sont alignés et tressés en forme cylindrique de manière à servir de manchon de protection de ligne de cuivre pour moteur.
PCT/JP2007/064202 2006-07-19 2007-07-18 manchon de protection d'une ligne de cuivre pour moteur WO2008010525A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006197195A JP2009235582A (ja) 2006-07-19 2006-07-19 モーター用銅線保護スリーブ
JP2006-197195 2006-07-19

Publications (1)

Publication Number Publication Date
WO2008010525A1 true WO2008010525A1 (fr) 2008-01-24

Family

ID=38956857

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/064202 WO2008010525A1 (fr) 2006-07-19 2007-07-18 manchon de protection d'une ligne de cuivre pour moteur

Country Status (2)

Country Link
JP (1) JP2009235582A (fr)
WO (1) WO2008010525A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010150722A (ja) * 2008-12-26 2010-07-08 Gosen:Kk モーター部品用保護スリーブおよびその製造方法
JP2012080747A (ja) * 2010-10-06 2012-04-19 Toshiba Corp 保護スリーブ、保護スリーブを備えた回転電機、保護スリーブの製造方法および保護スリーブを備えた回転電機の製造方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012017714A1 (fr) * 2010-08-05 2012-02-09 株式会社ゴーセン Gaine protectrice pour élément de moteur et procédé de fabrication de cette gaine
FR3004866B1 (fr) * 2013-04-23 2015-05-22 Valeo Equip Electr Moteur Stator de machine electrique muni de gaines d'isolation des fils relies aux bobines ayant une longueur optimisee et machine electrique correspondante

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001123324A (ja) * 1999-10-20 2001-05-08 Toray Monofilament Co Ltd ポリフェニレンサルファイドモノフィラメントおよびケーブル保護スリーブ
JP2004176243A (ja) * 2002-11-12 2004-06-24 Mot Gosen:Kk モーター部品用保護スリーブ
JP2007063730A (ja) * 2005-09-02 2007-03-15 Kuraray Co Ltd 保護スリーブ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001123324A (ja) * 1999-10-20 2001-05-08 Toray Monofilament Co Ltd ポリフェニレンサルファイドモノフィラメントおよびケーブル保護スリーブ
JP2004176243A (ja) * 2002-11-12 2004-06-24 Mot Gosen:Kk モーター部品用保護スリーブ
JP2007063730A (ja) * 2005-09-02 2007-03-15 Kuraray Co Ltd 保護スリーブ

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010150722A (ja) * 2008-12-26 2010-07-08 Gosen:Kk モーター部品用保護スリーブおよびその製造方法
JP2012080747A (ja) * 2010-10-06 2012-04-19 Toshiba Corp 保護スリーブ、保護スリーブを備えた回転電機、保護スリーブの製造方法および保護スリーブを備えた回転電機の製造方法

Also Published As

Publication number Publication date
JP2009235582A (ja) 2009-10-15

Similar Documents

Publication Publication Date Title
JP5285784B2 (ja) モーター部品用保護スリーブ及びその製造方法
JP4773952B2 (ja) 電気的伝導性弾性複合糸、それを製造する方法、及びそれを含む物品
CA2795894C (fr) Structure de fil multifilament
WO2008010525A1 (fr) manchon de protection d'une ligne de cuivre pour moteur
EP2280105A1 (fr) Tissu pour une bande adhésive et bande adhésive
TW200611938A (en) Bicomponent fiber and yarn comprising such fiber
TW200845051A (en) A flat cable
JP5424058B2 (ja) 結束テープ用布帛及び結束テープ
CN206833958U (zh) 电缆
US10370783B2 (en) Binding cord for motor
JP3705596B2 (ja) モーター部品用保護スリーブ
US6082144A (en) Circular warp knit packing material
JP2014229568A (ja) 伸縮性を有する帯状伝送路
EP1422728B1 (fr) Gaine de protection pour composants de moteur
JP5026341B2 (ja) 電気自動車用モーター用結束紐
JP5010457B2 (ja) モーター部品用保護スリーブ
JP5148470B2 (ja) モーター部品用保護スリーブおよびその製造方法
JP3848649B2 (ja) 電気自動車用モーター用結束紐
JP2005009052A (ja) 生分解性ポリエステル繊維を含む構造体、及びその製造方法
CN117241716A (zh) 特别是真空吸尘器软管的柔性软管及其生产方法
JPH11260154A (ja) 紙介在型ケーブル
JP3954468B2 (ja) グランドパッキン材料
US20030209360A1 (en) Motor control harness with braided, monofilament sleeve
JP3880508B2 (ja) ヒータ
JP2002042572A (ja) クッションテープ及び同テープを用いたゴム・プラスチック絶縁電力ケーブル

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 07790956

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

NENP Non-entry into the national phase

Ref country code: RU

NENP Non-entry into the national phase

Ref country code: JP

122 Ep: pct application non-entry in european phase

Ref document number: 07790956

Country of ref document: EP

Kind code of ref document: A1