Wire arranging tool for brushless coreless forming coil

Abstract

The utility model relates to a winding displacement tool for a brushless coreless forming coil, and solves the technical problems of non-uniform bonding and poor bonding precision in the prior art. The tool comprises a positioning bottom plate, and an upper positioning pressing plate and a lower positioning pressing plate which are used for press fitting, a positioning groove is formed in the positioning bottom plate, so that two sides of the positioning groove respectively form a limiting table; positioning arc inner teeth are arranged in the middles of the groove walls on the two sides of the positioning groove respectively and matched with the outer edge of a coil to be arranged and formed; a plurality of lead grooves are formed in the middle of the lower-end limiting table side by side; positioning columns are arranged in the middle of the positioning groove in parallel; the upper positioning pressing plate is used for being embedded into the upper half groove to press the upper half part of the coil to be arranged and formed; the lower positioning pressing plate is used for being embedded into the lower half groove to press the lower half portion of the coil to be arranged and formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wire arranging tool, in particular to a wire arranging tool for brushless hollow cup shaped coil. BACKGROUND

[0002] The hollow cup armature is a common motor component, and its structure is mainly of three types of straight winding, skew winding and rhombic winding. Among the three winding types, the rhombic winding type is most commonly used due to its high material utilization rate and excellent power consumption performance. By adopting the rhombic winding type shaped coil, the hollow cup armature can be manufactured through the steps of re-wiring, coiling and shaping.

[0003] From the manufacturing principle of the hollow cup armature, it can be known that to ensure the quality thereof, the quality of the shaped re-wired coil needs to be ensured, and thus the re-wiring mode of the shaped coil is the key to manufacturing the hollow cup armature.

[0004] The existing shaped coil re-wiring mode has the problems of uneven bonding and poor bonding accuracy in the bonding process, which often leads to unstable wire arrangement quality, thereby affecting the performance of the shaped re-wired coil and reducing the overall quality of the hollow cup armature. SUMMARY

[0005] The utility model discloses a wire arranging tool for brushless hollow cup shaped coil.

[0006] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is as follows:

[0007] A wire arranging tool for brushless hollow cup shaped coil, characterized in that:

[0008] The wire arranging tool comprises a positioning base plate, an upper positioning pressing plate and a lower positioning pressing plate mounted on the positioning base plate.

[0009] Based on the perspective angle of the positioning base plate, one long side of the positioning base plate is defined as the upper end, and the other long side is defined as the lower end. The long side direction of the positioning base plate is the X-axis direction, and the short side direction is the Y-axis direction.

[0010] A positioning groove for placing the shaped coil to be re-wired is formed in the middle of the positioning base plate along the X-axis direction, so that the two sides of the positioning groove form a limiting table respectively.

[0011] Positioning circular arc internal teeth are arranged in the middle of the groove walls on both sides of the positioning groove, and the circular arc shape of the positioning circular arc internal teeth is matched with the outer edge of the shaped coil to be re-wired, so as to position the upper side and the lower side of the shaped coil to be re-wired.

[0012] Multiple lead wire slots are arranged side by side along the length of the middle part of the limiting platform at the lower end. Each lead wire slot is spaced apart from the positioning arc teeth on the limiting platform, that is, there are lead wire slots on both sides of each positioning arc teeth; the lead wire slots are used to place the lead wires of the coil to be formed.

[0013] At least four positioning posts are arranged side by side along the X-axis in the middle of the positioning groove. The positioning posts are used to position the left and right sides of the coil to be formed. The positioning groove located above the positioning posts is called the upper half groove, and the positioning groove located below the positioning posts is called the lower half groove.

[0014] The upper positioning plate has an upper pressing boss on the side near the positioning base plate. The upper pressing boss is used to embed into the upper half groove to press the upper half of the coil to be formed by wire laying. The lower positioning plate has a lower pressing boss on the side near the positioning base plate. The lower pressing boss is used to embed into the lower half groove to press the lower half of the coil to be formed by wire laying.

[0015] Furthermore, let N be the number of coils to be formed into a cable. w Thickness D w The spacing between two adjacent coils to be laid out is d. w The length of the outer edge of each coil to be formed on the Y-axis is L. w The 2nd to the Nth w In the -1 coils to be formed (i.e., excluding the first and last coils), the cross spacing between the preceding and following coils of each coil is Φ; the width of the positioning groove along the Y-axis is L. s The groove depth is D s The number of positioning posts is N. C The diameter is φ C The distance between two adjacent positioning posts is L. C ;

[0016] Conditions met:

[0017] 0.15mm < L s -L w <0.25mm; The range of the matching distance between the arc shape of the inner teeth of the positioning arc and the outer edge of the coil to be formed is 0.15mm to 0.25mm;

[0018] 2.5mm < D s -D w <4mm;

[0019] N C =N w +2;

[0020] φ C =Φ;

[0021] L C≥d w , L C The value is determined by the size of the coil after the coil is shaped, rearranged and coiled.

[0022] Further, the inner diameter of the hollow cup armature after the coil is shaped, rearranged and coiled is R2, and the size of the unfolded cup body of the hollow cup armature is φ w =R2+D w ×B, the value of the spacing coefficient B is 0.4-0.8.

[0023] L C =φ w ×A÷N w , wherein the value of the unfolding coefficient A is 3.1-3.2.

[0024] Further, A=3.14; B=0.6.

[0025] Further, L s -L w =0.2mm; the arc-shaped shape of the arc-shaped inner tooth of the positioning circle is matched with the outer edge of the coil to be shaped, and the spacing is 0.2mm; D s -D w =3mm.

[0026] Further, the arc-shaped top point of the arc-shaped inner tooth of the positioning circle is located on the same plane as the side wall of the positioning groove.

[0027] The beneficial effects of the utility model compared with the prior art are:

[0028] 1. The utility model relates to a coil arranging tool for a brushless hollow cup shaped coil, the positioning groove for press-fitting limiting is designed by analyzing and calculating the size and shape of the target armature, the positioning column is arranged to position the coil, the separate diamond winding type shaped coils can be reasonably and uniformly arranged, the shape of the target armature is accurately controlled, and the qualified rate of the hollow cup armature is improved.

[0029] 2. The utility model relates to a coil arranging tool for a brushless hollow cup shaped coil, which is simple in structure, convenient to use, can quickly position and press-fit the diamond winding type shaped coil into a shaped coil, and speeds up the production efficiency of the hollow cup armature. DETAILED DESCRIPTION

[0030] Figure 1 is a structural schematic view of the positioning base plate and the positioning column in the utility model coil arranging tool for a brushless hollow cup shaped coil;

[0031] Figure 2 is an A-A sectional view of Figure 1 ; and

[0032] Figure 3It is the side view of the press fitting of the embodiment of the utility model;

[0033] Figure 4 It is the position schematic view of the formed coil of the embodiment of the utility model;

[0034] Figure 5 It is the working process schematic view of the embodiment of the utility model;

[0035] Figure 6 It is the formed flat cable coil effect drawing of the embodiment of the utility model.

[0036] The figure mark explanation is as follows: 1-positioning base plate, 11-positioning groove, 12-limiting table, 13-positioning arc inner tooth, 14-lead groove; 2-positioning column; 3-upper positioning pressing plate; 4-lower positioning pressing plate;

[0037] 5-waiting flat cable formed coil, 51-first coil, 52-second coil, 53-bonding part; 6-flat cable tool; 7-heating platform; 8-press machine. Specific implementation

[0038] The specific technical scheme in the embodiment of the utility model will be further explained in combination with the drawings.

[0039] Referring to Figures 1-3 The flat cable tool for brushless hollow cup formed coil provided by the embodiment of the utility model comprises a positioning base plate 1, and an upper positioning pressing plate 3 and a lower positioning pressing plate 4 installed on the positioning base plate 1. In addition, during the process of re-arranging in the embodiment, an adhesive needs to be used to bond the plurality of rhombic winding type formed coils 5.

[0040] Based on the top view angle of the positioning base plate 1, one long side of the positioning base plate 1 is recorded as the upper end, and the other long side is recorded as the lower end, the long side direction of the positioning base plate 1 is the X-axis direction, and the short side direction is the Y-axis direction;

[0041] The middle part of the positioning base plate 1 is provided with a positioning groove 11 for placing the waiting flat cable formed coil along the X-axis direction, so that the two sides of the positioning groove 11 respectively constitute a limiting table 12;

[0042] The middle part of the positioning groove 11 is provided with at least four positioning columns 2 in parallel along the X-axis direction, and the positioning column 2 is used for positioning the left side and the right side of the waiting flat cable formed coil; the positioning groove 11 above the positioning column 2 is recorded as the upper half groove, and the positioning groove 11 below the positioning column 2 is recorded as the lower half groove;

[0043] In order to ensure the arrangement of the single coil to be neat, in addition to the positioning column 2 ensuring the uniform spacing, the upper end and the lower end of the single coil need to be aligned, so the upper side and the lower side of each single coil need to be positioned.

[0044] The positioning groove 11 has positioning arc inner teeth 13 in the middle of the groove walls on both sides. The arc shape of the positioning arc inner teeth 13 is adapted to the outer edge of the coil to be formed, and is used to position the upper and lower sides of the coil to be formed.

[0045] The limiting platform 12 located at the lower end has multiple lead wire grooves 14 arranged side by side along its length. Each lead wire groove 14 is spaced apart from the positioning arc inner teeth 13 on the limiting platform 12. The lead wire grooves 14 are used to place the lead wires of the coil to be formed.

[0046] The upper positioning plate 3 is provided with an upper pressing boss on the side near the positioning base plate 1. The upper pressing boss is used to embed into the upper half groove to press the upper half of the coil to be formed by wire laying. The lower positioning plate 4 is provided with a lower pressing boss on the side near the positioning base plate 1. The lower pressing boss is used to embed into the lower half groove to press the lower half of the coil to be formed by wire laying.

[0047] The tangential surface of the arc-shaped apex of the positioning arc inner tooth 13 is on the same plane as the side wall of the positioning groove 11.

[0048] Let N be the number of forming coils 5 in the forming coils. w Thickness D w The spacing between two adjacent forming coils 5 is d. w The length of the outer edge of each coil to be formed 5 on the Y-axis is L. w The 2nd to the Nth w In a set of -1 coils to be formed, the cross spacing between the preceding and following coils is Φ, which is the spacing between the two inner edges of the overlapping portion of the preceding and following coils. Figure 4 As shown; the inner diameter of the hollow cup armature of the coil to be formed (5) after re-winding and rolling is R2, and the outer diameter is R1, D w =R1-R2, then the cup body unfolded circle dimension φ of the hollow cup armature is... w =R²+D w ×B, where the spacing coefficient B is 0.6.

[0049] This embodiment aims to produce a shaped wire coil consisting of a 12-coil diamond-shaped winding, that is, N in this embodiment w =12.

[0050] The width of the positioning groove 11 along the Y-axis is L. s The groove depth is D s ;

[0051] The number of teeth N of the internal tooth 13 of the positioning arc T =N w -1 = 11;

[0052] The spacing between each positioning column 2 is uniform, which is the key to uniform hollow armature cup wire arrangement, and the distance between each positioning column 2 is calculated through the size of the inner and outer diameters of the entire armature cup body. C , the diameter is φ C , and the spacing between the two adjacent positioning columns 2 is L C ;

[0053] The conditions are met:

[0054] L s =L w +d1, wherein d1 is a positioning allowance, d1=0.2mm in the embodiment, and the fitting spacing between the arc shape of the positioning circular arc inner tooth 13 and the outer edge of the coil to be arranged 5 is also 0.2mm;

[0055] D s =D w +d2, wherein d2 is a press-fitting allowance, d2=3mm in the embodiment;

[0056] N C =N w +2=14;

[0057] φ C =Φ;

[0058] L C =φ w ×A÷N w , and the unwinding coefficient A is 3.14.

[0059] The utility model discloses a kind of methods for arranging stator hollow cup forming coil, which is realized by using the above-mentioned brushless hollow cup forming coil arrangement tool, and the specific method is as follows:

[0060] Referring to Figure 4 , the coil to be arranged 5 is sequentially placed into the arrangement tool 6, after the first coil 51 is placed, adhesive is applied to the adhesive part 53 on the surface of the first coil 51, and then the second coil 52 is placed in place, adhesive is applied to the corresponding position on the surface thereof, and the step is repeated sequentially to arrange and place all the coils to be arranged 5.

[0061] Referring to Figure 5 , the diamond winding type forming coil after arrangement and placement is placed on the heating platform 7 together with the arrangement tool 6, the upper positioning pressing plate 3 and the lower positioning pressing plate 4 are pressed into the corresponding position of the arrangement tool 6, and are pressed flat and solidified on the pressing machine 8.

[0062] Referring to Figure 6 , after the adhesive is solidified, the finished forming arrangement coil can be taken out.

[0063] The above merely describes the embodiments of the present application, and is not intended to limit the protection scope of the present application. Any equivalent structural transformation, or direct or indirect application in other related technical fields, based on the content of the present application specification and drawings, are included in the patent protection scope of the present application. For those skilled in the art, it can be understood that the embodiments can be changed, modified, replaced and transformed in various ways without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A winding arrangement tool for brushless hollow cup shaped coil, characterized in that: it comprises a positioning base plate (1), an upper positioning pressing plate (3) and a lower positioning pressing plate (4) installed on the positioning base plate (1); based on the top view angle of the positioning base plate (1), the long side of the positioning base plate (1) is defined as the upper end and the other long side is defined as the lower end, the long side direction of the positioning base plate (1) is defined as the X-axis direction and the short side direction is defined as the Y-axis direction; a positioning groove (11) for placing the coil to be wound is formed in the middle of the positioning base plate (1) along the X-axis direction, so that the two sides of the positioning groove (11) form a limiting platform (12) respectively; a positioning circular arc internal tooth (13) is arranged in the middle of the groove wall on both sides of the positioning groove (11), the arc shape of the positioning circular arc internal tooth (13) is matched with the outer edge of the coil to be wound, and the positioning circular arc internal tooth (13) is used for positioning the upper side and the lower side of the coil to be wound; a plurality of lead grooves (14) are arranged side by side in the middle of the limiting platform (12) at the lower end along the length direction of the limiting platform (12), and each lead groove (14) is arranged at intervals corresponding to the positioning circular arc internal tooth (13) on the limiting platform (12); the lead groove (14) is used for placing the lead of the coil to be wound; at least four positioning columns (2) are arranged side by side in the middle of the positioning groove (11) along the X-axis direction, and the positioning columns (2) are used for positioning the left side and the right side of the coil to be wound; the positioning groove (11) above the positioning column (2) is defined as the upper half groove, and the positioning groove (11) below the positioning column (2) is defined as the lower half groove; the upper positioning pressing plate (3) is provided with an upper pressing mounting boss near the side of the positioning base plate (1), and the upper pressing mounting boss is used for embedding the upper half groove to press fit the upper half of the coil to be wound; the lower positioning pressing plate (4) is provided with a lower pressing mounting boss near the side of the positioning base plate (1), and the lower pressing mounting boss is used for embedding the lower half groove to press fit the lower half of the coil to be wound.

2. The winding arrangement tool for brushless hollow cup shaped coil according to claim 1, characterized in that: the following conditions are met:

3. The winding arrangement tool for brushless hollow cup shaped coil according to claim 2, characterized in that:

4. The winding arrangement tool for brushless hollow cup shaped coil according to claim 3, characterized in that:

5. The winding arrangement tool for brushless hollow cup shaped coil according to claim 4, characterized in that:

6. The winding arrangement tool for brushless hollow cup shaped coil according to claim 1, characterized in that: the arc vertex section of the positioning circular arc internal tooth (13) is located on the same plane as the side wall of the positioning groove (11). ​ ​ ​ The number of the to-be-arranged coil-forming coils is N w , the thickness is D w , the interval between the two adjacent to-be-arranged coil-forming coils is d w , the length of the outer edge of each to-be-arranged coil-forming coil on the Y axis is L w , and the intersection interval between the previous coil-forming coil and the next coil-forming coil in each of the second to N w -1 to-be-arranged coil-forming coils is Φ. The positioning slot (11) has a slot width L along the Y-axis direction s , and a slot depth D s ; the positioning column (2) has a number N C , a diameter φ C , and a spacing L C between adjacent two positioning columns (2) ​ 0.15mm < L s -L w <0.25mm; the circular arc shape of the positioning circular arc internal tooth (13) is adapted to the value range of the outer edge of the wire forming coil to be arranged 0.15mm-0.25mm; 2.5 mm < D s - D w < 4 mm; N C = N w + 2; φ C = Φ; L C ≥d w . ​ The inner diameter of the hollow cup armature after the coil shaping line is re-wound and rolled is R2, and the unfolded circle size of the cup body of the hollow cup armature is φ w =R2+D w ×B, the value range of the spacing coefficient B is 0.4-0.

8. L C = φ w × A ÷ N w wherein the expansion coefficient A has a value in the range of 3.1 to 3.

2. ​ A＝3.14； B＝0.6。 ​ L s -L w = 0.2 mm; the circular arc shape of the positioning circular-arc internal tooth (13) is adapted to the outer edge of the wire-discharging shaped coil with a spacing of 0.2 mm; D s -D w = 3 mm. ​ ​

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