CN114285205A - Winding module for linear motor - Google Patents

Abstract

The invention discloses a winding module for a linear motor, which comprises an iron core main body, a winding and a circuit board, wherein the iron core main body is provided with a plurality of winding holes; the iron core main body is wrapped with an injection molding insulating layer for limiting; a groove is formed in the side face of the core column, is positioned in the injection molding insulating layer and is used for positioning the injection molding insulating layer; the wire ends and the wire tails of the U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line and are positioned at the same end of the windings; the circuit board is provided with a plurality of wiring holes, the wire heads and the wire tails of the U-phase winding, the V-phase winding and the W-phase winding are all welded to the wiring holes, and the wiring holes are arranged in a straight line shape; the wiring holes and U, V and the three lead connecting positions W are all located on the side of the circuit board, which faces away from the winding. The iron core main part insulating layer sets up easily, insulating effect is better, and the product percent of pass is higher. The welding operation that the winding is connected is convenient and fast and the wiring rate of accuracy is high.

Description

A winding module for linear motors

technical field

The invention relates to the technical field of linear motors, in particular to a winding module for linear motors.

Background technique

The stator of the motor consists of an iron core and a coil. Before winding the coil around the iron core, the iron core needs to be insulated. The existing insulation treatment method is to wrap the winding column (ie, the core column) of the iron core with insulating paper, and the operation of wrapping the insulating paper is cumbersome.

The stator core of a linear motor has a large number of stems, and wrapping insulating paper on the stems one by one will require a lot of work. Moreover, the insulating paper wrapped outside the core column may partially overlap, so that the insulating effect of each core column is different, and the insulating effect of each position of the core column is also inconsistent.

On the other hand, the coils in the windings of existing motors are mostly directly connected, that is, 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 number of coil windings of a linear motor is large and arranged in a line. If the direct method of the wire head and the tail of the coil in the prior art is adopted, the operation is not only cumbersome, but also prone to errors, and the wire material is cluttered.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a winding module for a linear motor to solve the above problems.

For this purpose, the present invention adopts the following technical solutions:

A winding module for a linear motor, comprising an iron core body, a winding and a circuit board;

The iron core main body is formed by stacking a plurality of iron core sheets, and the iron core main body is covered with an injection molding insulating layer to limit the position; the iron core main body includes a plurality of core pillars and two side pillars. The column is arranged between the two side columns; the side of the core column is provided with a groove, the groove is located in the injection molding insulating layer, and the groove is used for positioning the injection molding insulating layer;

There are a plurality of the windings, the windings are wound on the core column, the number of the core column is the same as the number of the windings, and the plurality of the windings are divided into U-phase windings, V-phase windings and W-phase windings ;

The U-phase windings, the V-phase windings and the W-phase windings are arranged in an in-line arrangement, the wire ends and the wire ends of the U-phase windings, the V-phase windings and the W-phase windings are arranged in an in-line arrangement, and at the same end of the winding;

The circuit board is provided with a plurality of wiring holes, the wire ends and the wire ends of the U-phase winding, the V-phase winding and the W-phase winding are all welded to the wiring holes, and the plurality of wiring holes are in a line. type arrangement;

The end of the circuit board is provided with three lead connection positions of U, V and W;

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

Further, the groove is located on the upper part of the left side and/or the right side of the stem.

Further, the groove transversely penetrates the side surface of the stem.

Further, the groove is a V-shaped groove.

Further, the top surface of the injection-molded insulating layer is located below the top surface of the core column.

Further, the arranged lengths of the U-phase winding, the V-phase winding and the W-phase winding are consistent with the length of the circuit board;

The positions of the wire head and the wire tail 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.

Further, the U-phase winding, the V-phase winding and the W-phase winding each have two coils, which are respectively U1 coil, U2 coil, V1 coil, V2 coil, W1 coil and W2 coil, and the order of arrangement is as follows. U1 Coil, V1 Coil, W1 Coil, U2 Coil, V2 Coil and W2 Coil.

Further, the multiple 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;

The multiple 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 -end;

The U1+ terminal is electrically connected to the U lead connection point, and the U1- terminal is electrically connected to the U2+ terminal;

The V1+ terminal is electrically connected to the V lead connection potential, and the V1- terminal is electrically connected to the V2+ terminal;

The W1+ terminal is electrically connected to the W lead connection potential, and the W1- terminal is electrically connected to the W2+ terminal;

The U2-terminal, the V2-terminal and the W2-terminal are electrically connected.

Further, the winding module used for the linear motor further includes a wire, the wire is welded to the three lead connection positions of U, V and W of the circuit board, and the wire is provided with a clamping structure;

The locking structure includes a connecting block and a positioning sleeve, the abutting block and the positioning sleeve are both sleeved on the outside of the wire, the positioning sleeve is used to be inserted into the positioning slot of the injection mold, and the abutting block is Used to offset the inner wall of the injection mold;

The core body, the winding, the abutting block, and the wire segment between the front end of the wire and the abutting block are integrally formed by injection molding.

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

The core wire between the front end of the wire and the abutting block is exposed, and the core wire between the rear end of the wire and the positioning sleeve is located in the protection tube;

The clipping structure is sleeved outside the protection tube, and the clipping structure and the protective sleeve are welded into one body.

The beneficial effects of the embodiments of the present invention are:

1. The insulating layer of the main body of the iron core is an injection-molded insulating layer. The insulating layer can be set by one injection. This insulating layer setting method can greatly reduce the amount of labor, and has better insulation effect and higher product qualification rate. ; By adding a groove on the core column of the iron core body, the groove has a positioning effect on the injection molding insulating layer, which can prevent the injection molding insulating layer from coming out, and the V-shaped groove has a better positioning effect on the injection molding insulating layer.

2. Based on the in-line windings, the in-line heads and tails, and the in-line wiring holes, place the circuit board on one side of the winding and insert the winding wire ends into the wiring holes one by one and weld them. The connection of the winding can be completed, the terminals and the wiring holes only need to be connected in sequence, which is easier to align, the welding operation is convenient and fast, and the wiring accuracy is high. At the same time, the lead connection position is also set on the circuit board, which reduces the difficulty of lead connection and further improves the assembly difficulty of the coil winding module of the linear motor.

3. By adding a clamping structure on the wire, on the one hand, the positioning effect of the wire in the injection mold is increased, and on the other hand, the installation firmness of the wire can be improved. Based on the positioning function of the positioning sleeve and the limiting function of the abutting block, the wire will not fly out even if it receives a certain pressure during the packaging and injection molding process, which not only improves the qualification rate of the packaging and injection molding process, but also limits the position of the wire, improving the Consistency of product quality. Based on the fact that the abutment block is located in the injection mold, the abutment block also enters the injection molding material, thereby improving the installation firmness of the wire on the linear motor stator module.

Description of drawings

The accompanying drawings further illustrate the present invention, but the content in the accompanying drawings does not constitute any limitation to the present invention.

1 is a schematic diagram of a winding module for a linear motor according to one embodiment of the present invention;

Fig. 2 is the schematic diagram of the iron core main body;

FIG. 3 is a schematic diagram of an iron core main body covered with an injection-molded insulating layer;

Fig. 4 is the schematic diagram of the iron core;

Figure 5 is a schematic diagram of the power circuit of the circuit board;

6 is a schematic diagram of a wire;

Fig. 7 is the schematic diagram that the wire and the injection mold cooperate;

In the drawings: 1-iron core body, 11-iron core piece, 12-core post, 13-side post, 14-groove, 15-injection insulating layer, 2-winding, 3-conductor, 4-clamping structure, 41-Abutting Block, 42-Locating Sleeve, 5-Injection Mould, 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 ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

As shown in FIGS. 1-7 , a winding module for a linear motor in this embodiment includes an iron core body 1 , a winding 2 and a circuit board 6 .

Specifically, the iron core main body 1 is formed by stacking a plurality of iron core pieces 11 , and the iron core main body 1 is covered with an injection molding insulating layer 15 to limit the position; the iron core main body 1 includes a plurality of core pillars 12 and two side pillars 13 . Each core column 12 is arranged between the two side 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 insulating layer 15 , and the groove 14 is used for positioning the injection molding insulating layer 15 .

Due to the large number of core posts 12 of the core body 1, if the core body 1 and the coil are insulated by wrapping insulating paper, it will take a lot of labor. The insulating layer can be arranged in a manner that reduces labor to a great extent. Moreover, the insulating layer is provided by injection molding, the error rate is lower, the thickness of the injection molding insulating layer 15 is uniform, and the insulating effect is better. By adding a groove 14 on the core column 12 of the iron core main body 1, the groove 14 has a positioning function for the injection molding insulating layer 15, and can prevent the injection molding insulating layer 15 from coming off.

Specifically, the core piece 11 includes a core piece and a side piece, and thus, a plurality of core pieces 11 are stacked, and the core piece 12 is formed by stacking a plurality of core pieces, and the side piece 13 is formed by stacking a plurality of side piece pieces.

Preferably, the groove 14 is located on the upper part of the side surface of the stem 12 . Therefore, the groove 14 also corresponds to the upper part of the injection-molded insulating layer 15 . On the one hand, it has a better limiting effect on the injection-molded insulating layer 15 , and can also improve the coating effect of the top edge of the injection-molded insulating layer 15 on the core body 1 .

In order to avoid the influence of the groove 14 on the coil setting operation and improve the positioning effect of the groove 14, the groove 14 is located on the left side and/or the right side of the core column 12. Preferably, the left and right sides of the core column 12 are both With grooves 14 . The grooves 14 are arranged on the left and right sides of the stem 12 so that the grooves 14 have a greater length than those provided on the front and rear sides of the grooves 14 . Moreover, the core body 1 is formed by stacking the core pieces 11 , and slots are formed on the core posts 12 of the core pieces 11 , so that the grooves 14 can be formed by stacking a plurality of core pieces 11 .

To simplify the manner in which the grooves 14 are formed, the grooves 14 extend laterally through the sides of the stem 12 . That is, the core post 12 of each core piece 11 has a slot, and a predetermined number of core pieces 11 can be stacked directly. Compared with the groove 14 with a smaller length, the core piece 11 is less difficult to stack.

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 bottom surface, the V-shaped groove has a better positioning effect.

Preferably, the groove depth of the groove 14 is 0.8-1.5 mm, and the opening width of the groove 14 is 1-3 mm. Therefore, the groove 14 of this size can not only achieve a better positioning effect, but also avoid affecting the performance of the iron core. Preferably, the groove depth of the groove 14 is 1 mm, and the opening width of the groove 14 is 2 mm.

Preferably, the top surface of the injection-molded insulating layer 15 is located below the top surface of the core column 12 . The stator of the linear motor consists of an iron core and a coil. After the iron core body and the coil are assembled, they need to be fixed together by injection molding, so that the injection molding insulation layer 15 has a lower height. During the secondary injection molding, the secondary injection molding The material is flush with the top end of the iron core body, and the secondary injection molding material can cover the top end of the iron core body and the top end of the injection molding insulating layer 15 to achieve a better secondary injection molding effect. If the top of the injection molded insulating layer 15 is flush with the top of the iron core body, after the secondary injection molding is completed, a clear injection molding boundary will appear on the top of the iron core body, which not only affects the appearance of the stator but also affects the injection molding effect.

There are multiple windings 2 in the embodiment of the present invention, the windings 2 are wound around the core column 12, the number of core columns 12 is the same as the number of the windings 2, and the multiple windings 2 are divided into U-phase windings, V-phase windings and W-phase windings;

U-phase windings, V-phase windings and W-phase windings are arranged in-line, and the wire heads and wire tails of U-phase windings, V-phase windings and W-phase windings are arranged in-line, and are located at the same end of winding 2;

The circuit board 6 is provided with a plurality of wiring holes 61, and the wire heads and tails of the U-phase winding, the V-phase winding and the W-phase winding are welded to the wiring holes 61, and the plurality of wiring holes 61 are arranged in a line;

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

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

Based on the in-line winding 2, the in-line wire heads and wire tails, and the in-line wiring holes 61, place the circuit board 6 on one side of the winding 2 and insert the wire ends of the winding 2 into the wiring holes one by one. 61 and welding, the connection of winding 2 can be completed, the terminal and the wiring hole 61 only need to be connected in sequence, which is easier to align, the welding operation is convenient and fast, and the wiring accuracy is high.

At the same time, the lead connection position 62 is also arranged on the circuit board 6 to reduce the difficulty of lead connection and further improve the assembly difficulty of the coil winding 2 module of the linear motor.

In order to further reduce the difficulty of wiring, the lengths of the U-phase winding, V-phase winding and W-phase winding are consistent with the length of the circuit board 6; The positions of the wiring holes 61 of the board 6 correspond to each other.

Therefore, when connecting each winding 2, there is no need to check the position of the winding 2, nor the position of the circuit board 6. It is only necessary to place the circuit board 6 on the side of the wire head and tail of the winding 2. The wire tail is inserted into the wiring hole 61 corresponding to the seat and welded to complete the connection of the winding 2, and the operation is fast and simple.

Further, the U-phase winding, the V-phase winding and the W-phase winding each have two coils, which are U1 coil 211, U2 coil 212, V1 coil 221, V2 coil 222, W1 coil 231 and W2 coil 232, respectively. The arrangement sequence is U1 coil 211 , V1 coil 221 , W1 coil 231 , U2 coil 212 , V2 coil 222 and W2 coil 232 .

The configuration of the winding 2 is suitable for a high-power linear motor, which further reduces the difficulty of connecting the winding 2 of the high-power linear motor, reduces the wiring error rate, and improves production efficiency.

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;

The plurality of wiring holes 61 of the circuit board 6 are divided into U ₁ ⁺ end, U ₁ ^- end, V ₁ ⁺ end, V ₁ ^- end, W ₁ ⁺ end, W ₁ ^- end, U ₂ ⁺ end, U ₂ ^- terminal, V ₂ ⁺ terminal, V ₂ ^- terminal, W ₂ ⁺ terminal and W ₂ ^- terminal;

The U ₁ ⁺ terminal is electrically connected to the U lead connection point, and the U ₁ ^- terminal is electrically connected to the U ₂ ⁺ terminal;

The V ₁ ⁺ terminal is electrically connected to the V lead connection potential, and the V ₁ ^- terminal is electrically connected to the V ₂ ⁺ terminal;

The W ₁ ⁺ terminal is electrically connected to the W lead connection potential, and the W ₁ ^- terminal is electrically connected to the W ₂ ⁺ terminal;

The U ₂ ^-terminal , the V ₂ ^-terminal and the W ₂ ^-terminal are electrically connected.

This arrangement is beneficial to realize that the plurality of lead holes are arranged in a line, and the connection between the windings and the coils is more convenient. It should be noted that in this embodiment, the U ₁ ⁺ terminal and the U lead connection position overlap.

Preferably, the three lead connection positions 62 of U, V and W are arranged in a line, and the arrangement direction is perpendicular to the arrangement direction of the plurality of wiring holes 61 . This arrangement makes the arrangement of the wiring holes 61 and the lead connection positions 62 on the circuit board 6 more compact and reduces the volume of the circuit board 6 .

The winding module of the embodiment of the present invention further includes a wire 3, the wire 3 is welded to the three lead connection positions 62 of U, V and W of the circuit board 6, and the wire 3 is provided with a clamping structure 4;

The clamping structure 4 includes a connecting block 41 and a positioning sleeve 42. Both the abutting block 41 and the positioning sleeve 42 are sleeved outside the wire 3. The positioning sleeve 42 is used to be inserted into the positioning slot of the injection mold 5, and the abutting block 41 is used for Abut against the inner wall of the injection mold 5;

The core body 1 , the winding 2 , the abutment block 41 , and the lead 3 segments between the front end of the wire 3 and the abutment block 41 are integrally molded.

By adding the retaining 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 can be improved. Specifically, the wire 3 is connected to the winding 2 before injection molding. 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 inserted into the positioning slot of the injection mold 5, and the abutting block 41 abuts against the inner wall of the injection mold 5 (ie, the inner wall of the mold cavity), and then the liquid injection material can be filled into the injection mold. Based on the positioning function of the positioning sleeve 42 and the limiting function of the abutting block 41, the wire 3 will not fly out even if it receives a certain pressure during the packaging and injection molding process, which not only improves the qualification rate of the packaging and injection molding process, but also improves the position of the wire 3. Qualify to improve consistency of product quality. Since the abutment block 41 is located in the injection mold 5, the abutment block 41 also enters the injection molding material, thereby improving the firmness of the installation of the wire 3 on the linear motor stator module.

Preferably, the material of the retaining structure 4 is a temperature-resistant material, and the temperature-resistant temperature of the temperature-resistant material is greater than 150°C.

Since the liquefied injection molding material has a higher temperature, the clamping structure 4 can reach a higher tolerance temperature, which can prevent the clamping structure 4 from softening and deforming during the injection molding process, and ensure that the clamping structure 4 maintains a good quality during the injection molding process. Positioning and limiting action.

In some embodiments, the wire 3 is composed of a plurality of core wires 43, and the plurality of wires 3 are respectively welded to the three lead connection positions 62 of U, V and W of the circuit board 6; The core wire 43 is exposed, and the core wire 43 between the rear end of the wire 3 and the positioning sleeve 42 is located in the protection tube; the clamping structure 4 is sheathed outside the protection tube, and the clamping structure 4 and the protection sleeve are welded into one.

On the one hand, the protection tube can protect the core wires 43 , and on the other hand, it can also have a positioning effect on the core wires 43 to prevent the relative movement of the plurality of core wires 43 . After the clamping structure 4 is formed, it is assembled with the protection tube, which reduces the difficulty of assembling the lead. When the linear motor is a three-phase motor, a plurality of core wires 43 realize the three-phase connection between the wire 3 and the winding 2 .

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.

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

Preferably, the length of the wire 3 is 550-650 mm, and the length of the core wire 43 between the front end of the wire 3 and the abutting block 41 is 40-60 mm. The wire 3 of this length can be left with sufficient length to be welded with the winding 2 and connected to the external circuit, and the wire will not be entangled due to the excessive length. Further preferably, the length of the wire 3 is 600 mm, and the length of the core wire 43 between the front end of the wire 3 and the abutting block 41 is 50 mm.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims (10)

1. A winding module for a linear motor includes an iron core body, a winding and a circuit board;

the iron core main body is formed by stacking a plurality of iron chips, and an injection molding insulating layer is coated outside the iron core main body for limiting; the iron core main body comprises a plurality of core columns and two side columns, and the core columns are arranged between the two side columns; a groove is formed in the side face of the core column, is positioned in the injection molding insulating layer and is used for positioning the injection molding insulating layer;

the winding is wound on the core column, the number of the core columns is the same as that of the windings, and the windings are divided into a U-phase winding, a V-phase winding and a W-phase winding;

the U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line, and the wire ends and the wire tails of the U-phase winding, the V-phase winding and the W-phase winding are arranged in a straight line and are positioned at the same end of the windings;

the circuit board is provided with a plurality of wiring holes, the wire heads and the wire tails of the U-phase winding, the V-phase winding and the W-phase winding are all welded to the wiring holes, and the wiring holes are arranged in a straight line shape;

the end part of the circuit board is provided with U, V and W lead wire connecting positions;

the wiring holes and U, V and the three lead connecting positions W are all located on the side of the circuit board, which faces away from the winding.

2. Winding module for a linear electric motor according to claim 1, characterized in that the recess is located at the upper part of the left and/or right side of the core limb.

3. Winding module for a linear electric motor according to claim 2, characterized in that the recess extends transversely through the side of the core limb.

4. The winding module for a linear electric machine according to claim 1, wherein the recesses are V-grooves.

5. The winding module for a linear electric machine according to claim 1, wherein the top end face of the injection molded insulation layer is located below the top end face of the stem.

6. The winding module for a linear motor according to claim 1, wherein the U-phase winding, the V-phase winding, and the W-phase winding are arranged in a length identical to that of the circuit board;

and 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 of the circuit board.

7. The winding module for a linear electric machine according to claim 6, wherein the U-phase winding, the V-phase winding and the W-phase winding each have two coils, U1 coil, U2 coil, V1 coil, V, respectively₂Coil, W₁Coil and W₂Coils arranged in the order of U₁Coil, V₁Coil, W₁Coil, U₂Coil, V₂Coil and W₂And a coil.

8. The winding module for a linear electric motor according to claim 7, wherein the plurality of terminal holes of the circuit board are aligned with the U-shape one by one₁Coil, V₁Coil, W₁Coil, U₂Coil, V₂Coil and W₂The coils are corresponding;

a plurality of wiring holes of the circuit board are divided into U₁ ⁺Terminal, U₁ ^-Terminal, V₁ ⁺Terminal, V₁ ^-Terminal, W₁ ⁺Terminal, W₁ ^-Terminal, U₂ ⁺Terminal, U₂ ^-Terminal, V₂ ⁺Terminal, V₂ ^-Terminal, W₂ ⁺End and W₂ ^-A terminal;

the U is₁ ⁺The end is electrically connected with the U lead wire connecting position,the U is₁ ^-Terminal and the U₂ ⁺End electrical connection;

the V is₁ ⁺The end is electrically connected with the V lead wire connection position, the V₁ ^-Terminal and said V₂ ⁺End electrical connection;

the W is₁ ⁺The end is electrically connected with the W lead wire connection position, W₁ ^-End and said W₂ ⁺End electrical connection;

the U is₂ ^-End, said V₂ ^-End and said W₂ ^-And the ends are electrically connected.

9. The winding module for a linear motor according to claim 1, further comprising a wire soldered to U, V and W three lead connection sites of the circuit board, the wire being provided with a snap fit structure;

the clamping limit structure comprises a resisting block and a positioning sleeve which are connected, the resisting block and the positioning sleeve are sleeved outside the lead, the positioning sleeve is used for being clamped into a positioning groove hole of the injection mold, and the resisting block is used for resisting against the inner wall of the injection mold;

the iron core main body, the winding, the abutting blocks and the lead sections between the front ends of the leads and the abutting blocks are integrally molded through injection.

10. The winding module for a linear motor according to claim 9, wherein the conductive wire is composed of a plurality of core wires, and the plurality of conductive wires are respectively soldered to U, V and three wire connection sites W of the circuit board;

a core wire between the front end of the lead and the abutting block is exposed, and the core wire between the rear end of the lead and the positioning sleeve is positioned in the protective tube;

the clamping limit structure is sleeved outside the protective pipe, and the clamping limit structure and the protective sleeve are welded into a whole.

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