A winding module for a linear motor

Abstract

The application discloses a winding module for a linear motor, which comprises a core body, windings and a circuit board; the core body is coated with an injection-molded insulation layer; the side surface of the core column is provided with a groove, which is located in the injection-molded insulation layer and used for positioning the injection-molded insulation layer; the wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding are arranged in a line and located at the same end of the windings; the circuit board is provided with a plurality of wiring holes, the wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding are welded to the wiring holes, and the plurality of wiring holes are arranged in a line; the plurality of wiring holes and the U, V and W three lead connection positions are located on the side of the circuit board away from the windings. The insulation layer of the core body is easy to set, the insulation effect is better, and the product qualified rate is higher. The welding operation of the winding connection is convenient and fast, and the wiring accuracy is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of linear motor, in particular to a winding module for linear motor. BACKGROUND

[0002] The stator of the motor is composed of a core and a coil, before winding the coil on the core, the core needs to be insulated. The existing insulation processing method is to wrap the winding column (i.e. core column) of the core with insulation paper, which is relatively cumbersome to operate.

[0003] The core column of the stator core of the linear motor is relatively large in number, and it will take a lot of work to wrap the insulation paper on each core column one by one. Moreover, the insulation paper wrapped outside the core column will have some overlap, resulting in inconsistent insulation effect of each core column and inconsistent insulation effect of each position of the core column.

[0004] On the other hand, the coils in the winding of the existing motor are mostly directly connected, i.e. the wire head of one coil is connected to the wire tail of another coil, and the wire head of another coil is connected to the wire tail of another coil. The coil winding of the linear motor is relatively large in number and arranged in a straight line, if the wire head and tail of the coil in the prior art is directly connected, not only the operation is cumbersome, but also it is easy to make mistakes, and it also leads to disordered wire. SUMMARY

[0005] The purpose of the present application is to provide a winding module for linear motor to solve the above problems.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] A winding module for linear motor, comprising a core body, a winding and a circuit board;

[0008] The core body is stacked by a plurality of core pieces, and the core body is coated with an injection molding insulation layer; the core body comprises a plurality of core columns and two edge columns, and the plurality of core columns are arranged between the two edge columns; the side surface of the core column is provided with a groove, and the groove is located in the injection molding insulation layer, and the groove is used for positioning the injection molding insulation layer;

[0009] The winding has a plurality of windings, the winding is wound on the core column, the number of core columns is the same as the number of windings, and the plurality of windings are divided into U-phase winding, V-phase winding and W-phase winding;

[0010] The U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line, the wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line, and are located at the same end of the winding;

[0011] The circuit board is provided with a plurality of wiring holes, and the wire heads and wire tails of the U-phase winding, the V-phase winding and the W-phase winding are welded to the wiring holes, and the plurality of wiring holes are arranged in a linear form.

[0012] The end of the circuit board is provided with U, V and W three lead connection positions.

[0013] The plurality of wiring holes and the U, V and W three lead connection positions are located on the side of the circuit board away from the winding.

[0014] Further, the recess is located at the upper part of the left side and / or the right side of the core column.

[0015] Further, the recess transversely penetrates the side of the core column.

[0016] Further, the recess is a V-shaped groove.

[0017] Further, the top end surface of the injection molding insulation layer is located below the top end surface of the core column.

[0018] Further, the lengths of the U-phase winding, the V-phase winding and the W-phase winding are consistent with the length of the circuit board.

[0019] The positions of the wire heads and wire tails of the U-phase winding, the V-phase winding and the W-phase winding correspond to the positions of the wiring holes of the circuit board.

[0020] Further, the U-phase winding, the V-phase winding and the W-phase winding each have two coils, namely U1 coil, U2 coil, V1 coil, V2 coil, W1 coil and W2 coil, and the arrangement order is U1 coil, V1 coil, W1 coil, U2 coil, V2 coil and W2 coil.

[0021] Further, the plurality of wiring holes of the circuit board correspond to the U1 coil, the V1 coil, the W1 coil, the U2 coil, the V2 coil and the W2 coil one by one.

[0022] The plurality of wiring holes of the circuit board are divided into U1+ end, U1- end, V1+ end, V1- end, W1+ end, W1- end, U2+ end, U2- end, V2+ end, V2- end, W2+ end and W2- end.

[0023] The U1+ end is electrically connected to the U lead connection position, and the U1- end and the U2+ end are electrically connected.

[0024] The V1+ end is electrically connected to the V lead connection position, and the V1- end and the V2+ end are electrically connected.

[0025] The W1+ end is electrically connected with the W lead connection position, and the W1- end and the W2+ end are electrically connected.

[0026] The U2- end, the V2- end and the W2- end are electrically connected.

[0027] Further, the winding module for the linear motor further comprises wires welded to the U, V and W three lead connection positions of the circuit board, and the wires are provided with clamping structures.

[0028] The clamping structure comprises a stopper and a positioning sleeve connected with each other, the stopper and the positioning sleeve are sleeved outside the wire, the positioning sleeve is used for clamping into a positioning slot hole of an injection mold, and the stopper is used for abutting against an inner wall of the injection mold.

[0029] The iron core body, the winding, the stopper and a wire segment between the front end of the wire and the stopper are integrally injection molded.

[0030] Further, the wire is composed of a plurality of core wires, and the plurality of wires are welded to the U, V and W three lead connection positions of the circuit board respectively.

[0031] The core wires between the front end of the wire and the stopper are exposed, and the core wires between the rear end of the wire and the positioning sleeve are located in a protection tube.

[0032] The clamping structure is sleeved outside the protection tube, and the clamping structure and the protection tube are integrally welded.

[0033] The beneficial effects of the embodiment of the application are as follows:

[0034] 1. The insulation layer of the iron core body is an injection molded insulation layer, and the insulation layer can be set through one-time injection molding, the insulation layer setting mode can greatly reduce the labor amount, and the insulation effect is better and the product qualification rate is higher; the recess is additionally arranged on the core column of the iron core body, the recess has a positioning effect on the injection molded insulation layer, and the V-shaped groove has a better positioning effect on the injection molded insulation layer.

[0035] 2. Based on the winding arranged in a line, the wire head and the wire tail arranged in a line and the wiring hole arranged in a line, the circuit board is placed on one side of the winding, the winding wire end is inserted into the wiring hole and welded one by one, the connection of the winding can be completed, the end and the wiring hole only need to be connected in sequence, the alignment is easier, the welding operation is convenient and fast, and the wiring accuracy is high. Meanwhile, the lead connection position is also arranged on the circuit board, the difficulty of lead connection is reduced, and the assembly difficulty of the linear motor coil winding module is further improved.

[0036] 3, by increasing the card limit structure on the wire, on the one hand, increases the wire in the injection mold positioning effect, on the other hand, but also can improve the installation of wire firmness. Based on the positioning effect of positioning sleeve and the limiting effect of the block, the wire will not fly out even if it receives certain pressure in the packaging injection process, not only improves the qualified rate of packaging injection process, but also limits the position of the wire, improves the consistency of product quality. Based on the block located in the injection mold, the block also enters the injection material, thereby improving the installation firmness of the wire in the linear motor stator module. BRIEF DESCRIPTION OF DRAWINGS

[0037] The drawings further illustrate the present application, but the contents of the drawings do not constitute any limitation on the present application.

[0038] Figure 1 is a schematic diagram of a winding module for a linear motor according to an embodiment of the present application;

[0039] Figure 2 is a schematic diagram of a core body;

[0040] Figure 3 is a schematic diagram of a core body coated with an injection insulation layer;

[0041] Figure 4 is a schematic diagram of a core piece;

[0042] Figure 5 is a schematic diagram of a power circuit of a circuit board;

[0043] Figure 6 is a schematic diagram of a wire;

[0044] Figure 7 is a schematic diagram of a wire and an injection mold;

[0045] In the drawings: 1 - core body, 11 - core piece, 12 - core column, 13 - edge column, 14 - groove, 15 - injection insulation layer, 2 - winding, 3 - wire, 4 - card limit structure, 41 - block, 42 - positioning sleeve, 5 - injection mold, 211 - U1 coil, 212 - U2 coil, 221 - V1 coil, 222 - V2 coil, 231 - W1 coil, 232 - W2 coil, 6 - circuit board, 61 - wiring hole, 62 - lead connection position. DETAILED DESCRIPTION

[0046] The technical solutions of the present application will be further described below in conjunction with the drawings and through specific embodiments.

[0047] As shown in Figures 1-7 , a winding module for a linear motor according to an embodiment of the present application includes a core body 1, a winding 2, and a circuit board 6.

[0048] Specifically, the iron core body 1 is stacked by a plurality of iron core pieces 11, and the iron core body 1 is wrapped with an injection molding insulation layer 15 for limiting; the iron core body 1 comprises a plurality of core columns 12 and two edge columns 13, and the plurality of core columns 12 are arranged between the two edge columns 13; the side surface of the core column 12 is provided with a groove 14, the groove 14 is located in the injection molding insulation layer 15, and the groove 14 is used for positioning the injection molding insulation layer 15.

[0049] Since the number of core columns 12 of the iron core body 1 is large, if the iron core body 1 and the coil are insulated by wrapping insulation paper, a lot of labor will be required. The insulation paper is replaced by the injection molding insulation layer 15, and the setting of the insulation layer can be completed by one-time injection molding. This insulation layer setting method can greatly reduce the labor intensity. Moreover, the injection molding method has a lower error rate, the thickness of the injection molding insulation layer 15 is uniform, and the insulation effect is better. By adding the groove 14 on the core column 12 of the iron core body 1, the groove 14 has a positioning effect on the injection molding insulation layer 15, which can prevent the injection molding insulation layer 15 from falling out.

[0050] Specifically, the iron core piece 11 comprises a core column piece and an edge column piece. Thus, a plurality of iron core pieces 11 are stacked, a plurality of core column pieces are stacked to form the core column 12, and a plurality of edge column pieces are stacked to form the edge column 13.

[0051] Preferably, the groove 14 is located at the upper part of the side surface of the core column 12. Thus, the groove 14 also corresponds to the upper part of the injection molding insulation layer 15, which has a better limiting effect on the injection molding insulation layer 15 and can improve the wrapping effect of the top edge of the injection molding insulation layer 15 on the iron core body 1.

[0052] In order to avoid the influence of the groove 14 on the operation of setting the coil and improve the positioning effect of the groove 14, the groove 14 is located on the left side surface and / or the right side surface of the core column 12. Preferably, the left and right side surfaces of the core column 12 both have the groove 14. Compared with being arranged on the front and rear side surfaces of the groove 14, the groove 14 has a larger length when being arranged on the left and right side surfaces of the core column 12. Moreover, based on the fact that the iron core body 1 is stacked by the iron core pieces 11, the groove 14 is formed on the core column 12 piece of the iron core piece 11. Thus, the plurality of iron core pieces 11 are stacked to form the groove 14.

[0053] In order to simplify the forming method of the groove 14, the groove 14 transversely penetrates the side surface of the core column 12. That is, the core column 12 piece of each iron core piece 11 is slotted, and a specified number of iron core pieces 11 are directly stacked. Compared with the groove 14 with a smaller length, the iron core pieces 11 are easier to stack.

[0054] In order to achieve better positioning effect, the groove 14 is a V-shaped groove. Compared with the groove 14 with a rectangular cross section or an arc-shaped bottom surface, the V-shaped groove has a better positioning effect.

[0055] Preferably, the groove depth of the groove 14 is 0.8-1.5mm, and the opening width of the groove 14 is 1-3mm. Thus, the groove 14 of such size can not only have a better positioning effect, but also avoid affecting the performance of the core. Preferably, the groove depth of the groove 14 is 1mm, and the opening width of the groove 14 is 2mm.

[0056] Preferably, the top end of the injection molding insulation layer 15 is below the top end of the core column 12. The stator of the linear motor is composed of the core and the coil. Since the core body and the coil need to be fixed together after assembly, the injection molding insulation layer 15 has a lower height. During secondary injection molding, the secondary injection molding material is flush with the top end of the core body, and the secondary injection molding material can cover the top end of the core body and the top end of the injection molding insulation layer 15, achieving a better secondary injection molding effect. If the top end of the injection molding insulation layer 15 is flush with the top end of the core body, after completing the secondary injection molding, there is a clear injection molding boundary at the top of the core body, which not only affects the appearance of the stator but also affects the injection molding effect.

[0057] The winding 2 of the embodiment of the application has a plurality of winding 2, which is arranged on the core column 12. The number of the core column 12 is the same as the number of the winding 2. The plurality of winding 2 is divided into U-phase winding, V-phase winding and W-phase winding.

[0058] The U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line. The wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line and are located at the same end of the winding 2.

[0059] The circuit board 6 is provided with a plurality of wire connection holes 61. The wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding are welded to the wire connection hole 61. The plurality of wire connection holes 61 are arranged in a straight line.

[0060] The end of the circuit board 6 is provided with U, V and W three lead connection positions 62.

[0061] The plurality of wire connection holes 61 and the U, V and W three lead connection positions 62 are located on the side of the circuit board 6 away from the winding 2.

[0062] Based on the winding 2 arranged in a straight line, the wire head and the wire tail arranged in a straight line, and the wire connection hole 61 arranged in a straight line, the winding 2 is placed on one side of the winding 2, and then the wire end of the winding 2 is inserted into the wire connection hole 61 and welded one by one. The connection of the winding 2 can be completed. The wire head and the wire connection hole 61 only need to be connected in order, which is easier to align, and the welding operation is convenient and fast, and the wiring accuracy is high.

[0063] At the same time, the lead connection position 62 is also arranged on the circuit board 6, which reduces the difficulty of lead connection and further improves the assembly difficulty of the linear motor coil winding 2 module.

[0064] In order to further reduce the wiring difficulty, the lengths of the U-phase winding, the V-phase winding and the W-phase winding are consistent with the length of the circuit board 6; the positions of the wire heads and the wire tails of the U-phase winding, the V-phase winding and the W-phase winding correspond to the positions of the wiring holes 61 of the circuit board 6.

[0065] Therefore, when connecting the windings 2, it is not necessary to check the positions of the windings 2 or the positions of the circuit board 6, and it is only necessary to place the circuit board 6 on the side of the wire heads and the wire tails of the windings 2, insert the wire heads or the wire tails corresponding to the wiring holes 61 into the wiring holes 61 corresponding to the positions and weld, so that the connection of the windings 2 can be completed, which is fast and simple.

[0066] Further, the U-phase winding, the V-phase winding and the W-phase winding each have two coils, namely, the U1 coil 211, the U2 coil 212, the V1 coil 221, the V2 coil 222, the W1 coil 231 and the W2 coil 232, and the arrangement order is the U1 coil 211, the V1 coil 221, the W1 coil 231, the U2 coil 212, the V2 coil 222 and the W2 coil 232.

[0067] The configuration of the winding 2 is suitable for a high-power linear motor, further reduces the connection difficulty of the winding 2 of the high-power linear motor and reduces the connection error rate, and improves the production efficiency.

[0068] Specifically, the plurality of wiring holes 61 of the circuit board 6 correspond to the U1 coil 211, the V1 coil 221, the W1 coil 231, the U2 coil 212, the V2 coil 222 and the W2 coil 232 one by one;

[0069] The plurality of wiring holes 61 of the circuit board 6 are divided into the U1 + terminal, the U1 - terminal, the V1 + terminal, the V1 - terminal, the W1 + terminal, the W1 - terminal, the U2 + terminal, the U2 - terminal, the V2 + terminal, the V2 - terminal, the W2 + terminal and the W2 - terminal.

[0070] The U1 + terminal is electrically connected with the U lead connection position, the U1 - terminal is electrically connected with the U2 + terminal.

[0071] The V1 + terminal is electrically connected with the V lead connection position, the V1 - terminal is electrically connected with the V2 + terminal.

[0072] The W1 + end is electrically connected with the W lead connection position, the W1 - end and the W2 + end are electrically connected.

[0073] The U2 - end, the V2 - end and the W2 - end are electrically connected.

[0074] This arrangement is conducive to achieving a linear arrangement of the multiple lead holes, and the winding 2 coil connection is more convenient. It should be noted that the U1 + end coincides with the U lead connection position.

[0075] Preferably, the U, V and W three lead connection positions 62 are arranged in a linear arrangement, and the arrangement direction is perpendicular to the arrangement direction of the multiple lead holes 61. This arrangement makes the lead holes 61 and the lead connection positions 62 on the circuit board 6 more compact, reducing the volume of the circuit board 6.

[0076] The winding module of the embodiment of the present application further comprises a wire 3 welded to the U, V and W three lead connection positions 62 of the circuit board 6, and the wire 3 is provided with a clamping structure 4.

[0077] The clamping structure 4 comprises a stop block 41 and a positioning sleeve 42 connected together, and the stop block 41 and the positioning sleeve 42 are both sleeved on the wire 3. The positioning sleeve 42 is used for clamping into the positioning slot hole of the injection mold 5, and the stop block 41 is used for abutting against the inner wall of the injection mold 5.

[0078] The core body 1, the winding 2, the stop block 41, and the wire 3 segment between the front end of the wire 3 and the stop block 41 are integrally injection molded.

[0079] By adding the clamping structure 4 on the wire 3, on the one hand, the positioning effect of the wire 3 in the injection mold 5 is increased, and on the other hand, the installation firmness of the wire 3 is also improved. Specifically, the wire 3 is connected to the winding 2 before injection molding, and during injection molding, the core body 1 and the winding 2 are first placed in the injection mold 5, so that the positioning sleeve 42 is clamped into the positioning slot hole of the injection mold 5, and the stop block 41 abuts against the inner wall (i.e. the inner wall of the mold cavity) of the injection mold 5, and then the liquid injection material is filled into the injection mold. Based on the positioning effect of the positioning sleeve 42 and the limiting effect of the stop block 41, the wire 3 will not fly out even if it receives a certain pressure during the packaging injection process, which not only improves the qualification rate of the packaging injection process, but also limits the position of the wire 3, improving the consistency of product quality. Based on the fact that the stop block 41 is located in the injection mold 5, the stop block 41 also enters the injection material, thereby improving the installation firmness of the wire 3 in the linear motor stator module.

[0080] Preferably, the material of the clamping structure 4 is a temperature-resistant material, and the temperature-resistant material can withstand a temperature greater than 150°C.

[0081] Because the liquefied injection-molded material has a high temperature, the clamping structure 4 can withstand a high temperature, and the clamping structure 4 can be prevented from softening and deforming during the injection molding process, so that the clamping structure 4 can maintain a good positioning and limiting effect during the injection molding process.

[0082] In some embodiments, the lead wire 3 is composed of a plurality of core wires 43, and the plurality of lead wires 3 are respectively welded to the U, V, and W lead wire connecting positions 62 of the circuit board 6; the core wires 43 between the front end of the lead wire 3 and the abutting block 41 are exposed, and the core wires 43 between the rear end of the lead wire 3 and the positioning sleeve 42 are located in the protective tube; the clamping structure 4 is sleeved outside the protective tube, and the clamping structure 4 and the protective tube are welded as a whole.

[0083] The protective tube can protect the core wires 43 and has a positioning effect on the core wires 43, so that the plurality of core wires 43 can be prevented from moving relatively. The clamping structure 4 is assembled with the protective tube after the clamping structure 4 is formed, so that the assembly difficulty of the lead wire is reduced. When the linear motor is a three-phase motor, the plurality of core wires 43 realize the three-phase connection of the lead wire 3 and the winding 2.

[0084] In order to simplify the production process, the abutting block 41 and the positioning sleeve 42 are integrally formed. Specifically, the abutting block 41 and the positioning sleeve 42 are integrally formed by injection molding through a mold.

[0085] In order to achieve a good limiting effect, the length of the abutting block 41 along the axial direction of the lead wire 3 is 4-6 mm, and the length of the positioning sleeve 42 along the axial direction of the lead wire 3 is 7-9 mm. Preferably, the length of the abutting block 41 along the axial direction of the lead wire 3 is 5 mm, and the length of the positioning sleeve 42 along the axial direction of the lead wire 3 is 8 mm.

[0086] Preferably, the length of the lead wire 3 is 550-650 mm, and the length of the core wires 43 between the front end of the lead wire 3 and the abutting block 41 is 40-60 mm. The lead wire 3 with the length can have sufficient length to be welded to the winding 2 and connected to an external circuit, and the lead wire 3 will not be wound due to being too long. Further preferably, the length of the lead wire 3 is 600 mm, and the length of the core wires 43 between the front end of the lead wire 3 and the abutting block 41 is 50 mm.

[0087] The technical principles of the present application are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the present application, and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, other specific embodiments of the present application can be conceived by those skilled in the art without creative labor, and these equivalent variations or replacements are all included in the scope defined by the claims of the present application.

Claims

1. A winding module for a linear motor, characterized in that The iron core body, the winding and the circuit board are included. The iron core body is stacked by a plurality of iron core pieces, and the iron core body is coated with an injection molding insulation layer. The iron core body includes a plurality of core columns and two edge columns, and the plurality of core columns are arranged between the two edge columns. The side surface of the core column is provided with a groove, and the groove is located in the injection molding insulation layer. The groove is used for positioning the injection molding insulation layer. The winding has a plurality of windings, and the winding is arranged on the core column. The number of the core column is the same as the number of the winding. The plurality of windings includes U-phase winding, V-phase winding and W-phase winding. The U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line. The wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line and located at the same end of the winding. The circuit board is provided with a plurality of wiring holes. The wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding are welded to the wiring hole. The plurality of wiring holes are arranged in a straight line. The end of the circuit board is provided with U, V and W three lead connection positions. The plurality of wiring holes and the U, V and W three lead connection positions are located on the side of the circuit board away from the winding. The groove is located at the upper part of the left side surface and / or the right side surface of the core column. The groove transversely penetrates the side surface of the core column. The groove is a V-shaped groove. The top end surface of the injection molding insulation layer is located below the top end surface of the core column.

2. A winding module for a linear motor according to claim 1, characterized in that The length of the arrangement of the U-phase winding, the V-phase winding and the W-phase winding is consistent with the length of the circuit board. The position of the wire head and the wire tail of the U-phase winding, the V-phase winding and the W-phase winding corresponds to the position of the wiring hole of the circuit board.

3. A winding module for a linear motor according to claim 2, characterized in that The U-phase winding, the V-phase winding and the W-phase winding each have two coils, which are U1 coil, U2 coil, V1 coil, V2 coil, W1 coil and W2 coil. The arrangement order is U1 coil, V1 coil, W1 coil, U2 coil, V2 coil and W2 coil.

4. A winding module for a linear motor according to claim 3, characterized in that The plurality of wiring holes of the circuit board correspond to U1 coil, V1 coil, W1 coil, U2 coil, V2 coil and W2 coil one by one. The plurality of wiring holes of the circuit board are divided into U1 + ends, U1 - ends, V1 + ends, V1 - ends, W1 + ends, W1 - ends, U2 + ends, U2 - ends, V2 + ends, V2 - ends, W2 + ends, and W2 - ends; The U1 + end is electrically connected with the U lead connection position, and the U1 - end is electrically connected with the U2 + end. The V1 + end is electrically connected with the V lead connection position, and the V1 - end is electrically connected with the V2 + end. The W1 + end is electrically connected with the W lead connection site, and the W1 - end is electrically connected with the W2 + end. The U2 - terminal, the V2 - terminal, and the W2 - terminal are electrically connected.

5. The winding module for a linear motor of claim 1, wherein, It also includes a wire, which is welded to the U, V and W three lead connection positions of the circuit board. The wire is provided with a clamping structure. The clamping structure includes a stop block and a positioning sleeve connected with each other. The stop block and the positioning sleeve are sleeved outside the wire. The positioning sleeve is used for clamping into the positioning slot hole of the injection mold. The stop block is used for abutting against the inner wall of the injection mold. The iron core body, the winding, the stop block and the wire segment between the front end of the wire and the stop block are integrally injection molded.

6. A winding module for a linear motor according to claim 5, characterized in that The wire is composed of a plurality of core wires. The plurality of wires are respectively welded to the U, V and W three lead connection positions of the circuit board. The core wire between the front end of the wire and the stop block is exposed. The core wire between the rear end of the wire and the positioning sleeve is located in a protection tube. The clamping structure is sleeved outside the protection tube. The clamping structure and the protection tube are integrally welded.

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