Groove insulation paper, concentrated winding motor and motor lead processing method

Abstract

The application relates to the technical field of motor manufacturing, and particularly discloses a slot insulation paper, a concentrated winding motor and a motor lead-out wire processing method. The slot insulation paper comprises a paper tape main body, a lap joint protrusion and a plurality of positioning protrusions, one side of the paper tape main body is provided with a plurality of first limiting grooves, and both ends of the paper tape main body are provided with second limiting grooves; the plurality of positioning protrusions are arranged on the side of the paper tape main body away from the first limiting grooves; and the lap joint protrusion is arranged on the side of the paper tape main body provided with the first limiting grooves. Through the arrangement of the first limiting grooves and the second limiting grooves, the positioning operation on multiple groups of lead-out wires can be completed, the lap joint protrusion provides a lap joint position for the lead-out wires, the positioning protrusions guarantee the stability of the installation of the slot insulation paper, the slot insulation paper is used for accommodating and limiting the lead-out wires, so that the cost of the lead-out operation of the lead-out wires is reduced, the space occupied by the lead-out wires is reduced, and the efficiency of the lead-out operation of the lead-out wires is improved.

Description

Technical Field

[0001] This invention relates to the field of motor manufacturing technology, and in particular to a grooved insulating paper, a centrally wound motor, and a method for processing motor lead wires. Background Technology

[0002] In recent years, with the increasing demand for higher efficiency, motors in traditional industries have faced growing market competition for higher speeds and power. To increase motor speed and power, the diameter of the copper wire needs to be thicker, which necessitates increasing the number of wires wound. To achieve this, insert-type concentrated winding motors are often used to solve these problems.

[0003] Because multiple copper wires are wound in parallel, the number of neutral point leads is relatively large when using a Y-connection method in an insert-type centralized winding motor. Traditional methods involve inserting all neutral point leads into protective sleeves, placing them all above the windings, and finally soldering or crimping the terminals together to complete the lead-out operation. However, this traditional method has the following problems:

[0004] 1. The multi-strand winding results in a large number of neutral point leads in the motor. Taking out each lead individually would take too long and seriously affect production capacity.

[0005] 2. After all neutral point leads are inserted into the bushing, they are placed above the winding, which increases the space occupied by the entire winding. Summary of the Invention

[0006] The purpose of this invention is to provide a grooved insulating paper, a centralized winding motor, and a method for processing motor lead wires, so as to solve the problems of low efficiency and high cost in the motor lead wire extraction operation.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A grooved insulating paper includes a paper tape body, overlapping protrusions, and multiple positioning protrusions; one side of the paper tape body is provided with multiple first limiting grooves, and both ends of the paper tape body are provided with second limiting grooves; the multiple positioning protrusions are all provided on the side of the paper tape body away from the first limiting grooves; the overlapping protrusions are provided on the side of the paper tape body where the first limiting grooves are provided.

[0009] The first limiting grooves are arranged at equal intervals.

[0010] Preferably, the first limiting groove has seven slots.

[0011] Furthermore, two first limiting grooves are provided on one side of the overlapping protrusion, and five first limiting grooves are provided on the other side.

[0012] Preferably, the overlapping protrusion has a chamfered edge on the side opposite to the paper tape body.

[0013] Preferably, the edge of the paper tape body on the side where the first limiting groove is located is chamfered.

[0014] Preferably, a second limiting groove is provided at both ends of the paper tape body.

[0015] Preferably, there are six positioning protrusions.

[0016] A centralized winding motor includes the aforementioned slotted insulating paper and a motor body. The centralized winding motor is electrically connected to three three-phase leads and multiple winding leads. The centralized winding motor is also provided with an iron core slot. The paper tape body is bent into a C-shape, and multiple positioning protrusions are inserted into the iron core slot.

[0017] A method for processing motor lead wires, applied to the aforementioned centralized winding motor, includes the following steps:

[0018] S1. Divide the multiple winding leads into several groups, the number of which is the same as the sum of the number of the first limiting slot and the second limiting slot. In each group, the winding leads are intertwined, and each group of winding leads is respectively passed through one of the multiple first limiting slots or the second limiting slot.

[0019] S2. Remove the diaphragm from the end of the three-phase lead wire and the winding lead wire away from the motor body, and weld the inner core of the winding lead wire in the same group onto a copper sheet.

[0020] S3. Place the insulating sleeve on the winding lead wire, and then place the insulating sleeve with the winding lead wire on the overlapping protrusion.

[0021] S4. Connect the three three-phase leads to the corresponding power leads, and put the insulating sleeve on the three-phase leads.

[0022] The beneficial effects of this invention are:

[0023] The slotted insulating paper, through the setting of the first and second limiting slots, can complete the positioning operation of multiple sets of lead wires. The grouping and limiting of the lead wires greatly improves the efficiency of the lead wire pulling operation. The overlapping protrusions provide the overlapping position for the lead wires, and the positioning protrusions ensure the stability of the slotted insulating paper installation. While using the slotted insulating paper to store and limit the lead wires, it can also avoid the risk of short circuits between the lead wires, thereby reducing the cost of the lead wire pulling operation and reducing the space occupied by the lead wires. At the same time, the fixed position of the first and second limiting slots also enables the lead wire processing equipment to automatically perform the storage and limiting operation of the lead wires, thus greatly improving the efficiency of the lead wire pulling operation.

[0024] The motor lead wire processing method can connect and organize the lead wires of each group and insulate the copper sheets, thereby effectively optimizing the position and distribution of the motor lead wires in centralized winding, reducing the risk of lead wire damage, and reducing the space occupied. At the same time, the copper sheets eliminate the need to install insulating sleeves on every lead wire, effectively reducing the number of insulating sleeves used and lowering the cost of lead wire lead wire operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the grooved insulating paper provided in an embodiment of the present invention;

[0026] Figure 2 This is an unfolded view of the grooved insulating paper provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 100. Paper tape body; 110. Positioning protrusion; 121. First limiting groove; 122. Second limiting groove; 130. Overlapping protrusion. Detailed Implementation

[0029] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0033] like Figure 1 As shown, this embodiment provides a grooved insulating paper, including a paper tape body 100, overlapping protrusions 130 and multiple positioning protrusions 110; a plurality of first limiting grooves 121 are provided on one side of the paper tape body 100, and a second limiting groove 122 is provided at both ends of the paper tape body 100; the multiple positioning protrusions 110 are all provided on the side of the paper tape body 100 away from the first limiting grooves 121; the overlapping protrusions 130 are provided on the side of the paper tape body 100 where the first limiting grooves 121 are provided. By setting the first limiting groove 121 and the second limiting groove 122, the positioning operation of multiple sets of lead wires can be completed. The group storage and limiting of the lead wires can greatly improve the efficiency of the lead wire extraction operation. The overlapping protrusion 130 provides the overlapping position for the lead wires, and the positioning protrusion 110 ensures the stability of the groove insulation paper installation. While using the groove insulation paper to store and limit the lead wires, the risk of short circuit between the lead wires can also be avoided, thereby reducing the cost of the lead wire extraction operation and reducing the space occupied by the lead wires. At the same time, the fixed position of the first limiting groove 121 and the second limiting groove 122 also enables the lead wire processing equipment to automatically perform the storage and limiting operation of the lead wires, thereby greatly improving the efficiency of the lead wire extraction operation.

[0034] In this embodiment, the first limiting groove 121 and the second limiting groove 122 are rectangular in shape. In other embodiments of the present invention, the first limiting groove 121 and the second limiting groove 122 can be U-shaped, teardrop-shaped, semi-circular with a cut, or circular, etc., which will not be described in detail here.

[0035] Preferably, multiple first limiting slots 121 are evenly spaced. This even spacing simplifies the structure of the slot insulation paper, reduces the space occupied by the slot insulation paper, and lowers the risk of short circuits between different groups of leads. Specifically, there are seven first limiting slots 121; and a second limiting slot 122 is provided at each end of the paper tape body 100. This arrangement allows the slot insulation paper to accommodate and limit nine groups of leads. Because the slot insulation paper is flexible and malleable, the positions of all the first limiting slots 121 and second limiting slots 122 are adjustable, making the slot insulation paper suitable for motors of various structures and sizes. The number of first limiting slots 121 and second limiting slots 122 depends on the number of leads, and the width of both the first limiting slots 121 and second limiting slots 122 is greater than 1 mm.

[0036] In other embodiments of the present invention, four first limiting grooves 121 are provided to accommodate and limit six sets of lead wires. The number of first limiting grooves 121 can be determined by the insulating paper of the groove according to the number of sets of lead wires to be accommodated, which will not be elaborated here.

[0037] In this embodiment, two first limiting grooves 121 are provided on one side of the overlapping protrusion 130, and five first limiting grooves 121 are provided on the other side. The selection of the position of the overlapping protrusion 130 determines the overlapping position of the lead wires from the motor. The selection of the position of the overlapping protrusion 130 ensures that the three sets of lead wires limited on one side of the overlapping protrusion 130 and the six sets of lead wires limited on the other side of the overlapping protrusion 130 overlap on the overlapping protrusion 130, thereby optimizing the way the lead wires are stored and organized. In other embodiments of the present invention, three first limiting grooves 121 are provided on one side of the overlapping protrusion 130, and four first limiting grooves 121 are provided on the other side. This ensures that the four sets of lead wires limited on one side of the overlapping protrusion 130 and the five sets of lead wires limited on the other side of the overlapping protrusion 130 overlap on the overlapping protrusion 130. There are a total of nine first limiting grooves 121 and second limiting grooves 122. The overlapping protrusion 130 can be set between any two. As a result, the lead wire has a variety of different connection methods and overlapping modes relative to the overlapping protrusion 130, which are not all listed here.

[0038] Specifically, the overlapping protrusion 130 has a chamfer on the edge of the side facing away from the paper tape body 100; the paper tape body 100 also has a chamfer on the edge of the side where the first limiting groove 121 is located. The chamfer prevents damage or deformation of the slot insulation paper due to collision between the lead wire and the slot insulation paper during the lead wire lead-out operation, reducing the loss of the slot insulation paper during the lead wire lead-out operation and further reducing the cost of the lead wire lead-out operation.

[0039] At least three positioning protrusions 110 are provided; in this embodiment, six positioning protrusions 110 are provided. The arrangement of multiple positioning protrusions 110 ensures the positioning effect of the slotted insulating paper, ensuring that the slotted insulating paper will not shift during the lead wire lead-out operation, thereby ensuring the accuracy of the lead wire lead-out operation.

[0040] This embodiment also provides a centralized winding motor, including the aforementioned slotted insulating paper and motor body. The centralized winding motor is electrically connected to three three-phase leads and multiple winding leads. The centralized winding motor also has iron core slots. The paper tape body 100 is bent into a C-shape, and multiple positioning protrusions 110 are inserted into the iron core slots. By inserting the slotted insulating paper into the iron core slots of the centralized winding motor, the positioning effect of the slotted insulating paper on the centralized winding motor can be ensured, while also simplifying the structure of the centralized winding motor.

[0041] This embodiment also provides a method for processing motor lead wires, applied to the above-mentioned centralized winding motor, including the following steps:

[0042] Step 1: Divide the multiple winding leads into several groups, the number of which is the same as the sum of the number of the first limiting slots 121 and the second limiting slots 122. In each group, the winding leads are intertwined, and each group of winding leads is passed through one of the multiple first limiting slots 121 or second limiting slots 122.

[0043] Step 2: Remove the sheath from the end of the three-phase leads and winding leads furthest from the motor body, and weld the inner core of the winding leads of the same group onto a copper sheet.

[0044] Step 3: Place the insulating sleeve on the winding lead wire, and then place the insulating sleeve with the winding lead wire on the overlapping protrusion 130.

[0045] Step 4: Connect the three three-phase leads to the corresponding power leads, and put the insulating sleeves on the three-phase leads.

[0046] Using the above method, the lead wires of each group can be connected and organized, and the copper sheets can be insulated and protected. This effectively optimizes the position and distribution of the lead wires of the centralized winding motor, reduces the risk of lead wire damage, and reduces the space occupied. At the same time, the copper sheets eliminate the need to install insulating sleeves on every lead wire, effectively reducing the number of insulating sleeves used and lowering the cost of lead wire lead-out operations.

[0047] In this embodiment, the electrical connection between the three-phase leads and the power leads is completed by stripping the sheath from the end of the three-phase leads away from the motor body, welding the inner cores of the three-phase leads to the power leads, and then covering the exposed wire portion with an insulating sleeve.

[0048] The above operations can be completed automatically by the lead wire binding device. The mechanical binding action is more flexible and can ensure that each lead wire can be pulled out, which greatly improves work efficiency and makes the bundled lead wire structure more compact.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A grooved insulating paper, characterized in that, include: The paper tape body (100) has a plurality of first limiting grooves (121) on one side and second limiting grooves (122) at both ends. The first limiting grooves (121) are used to group and limit the lead wires, and the second limiting grooves (122) are used to group and limit the lead wires. Multiple positioning protrusions (110) are provided on the side of the paper tape body (100) opposite to the first limiting groove (121); An overlapping protrusion (130) is provided on the side of the paper tape body (100) where the first limiting groove (121) is provided; The first limiting groove (121) has seven slots; Each end of the paper tape body (100) is provided with a second limiting groove (122); The overlapping protrusion (130) is located between any two adjacent first limiting grooves (121) or between any adjacent first limiting groove (121) and second limiting groove (122).

2. The grooved insulating paper according to claim 1, characterized in that, Multiple first limiting grooves (121) are equally spaced.

3. The grooved insulating paper according to claim 2, characterized in that, Two first limiting grooves (121) are provided on one side of the overlapping protrusion (130), and five first limiting grooves (121) are provided on the other side.

4. The grooved insulating paper according to claim 2, characterized in that, The overlapping protrusion (130) has a chamfered edge on the side opposite to the paper tape body (100).

5. The slotted insulating paper according to any one of claims 1-3, characterized in that, The paper tape body (100) has a chamfer on the edge of the side where the first limiting groove (121) is located.

6. The grooved insulating paper according to any one of claims 1-3, characterized in that, The positioning protrusions (110) are provided in six parts.

7. A centralized winding motor, characterized in that, Includes the slotted insulating paper and motor body as described in any one of claims 1-6, wherein the centralized winding motor is electrically connected to three three-phase lead wires and multiple winding lead wires, and the centralized winding motor is also provided with an iron core slot, wherein the paper tape body (100) is bent into a C-shape, and multiple positioning protrusions (110) are inserted into the iron core slot.

8. A method for processing motor lead wires, characterized in that, The application of the centralized winding motor according to claim 7 includes the following steps: S1. Divide the multiple winding leads into several groups, the number of which is the same as the sum of the number of the first limiting slot (121) and the second limiting slot (122). In each group, the winding leads are intertwined, and each group of winding leads is respectively passed through one of the multiple first limiting slots (121) or second limiting slots (122). S2. Remove the diaphragm from the end of the three-phase lead wire and the winding lead wire away from the motor body, and weld the inner core of the winding lead wire in the same group onto a copper sheet. S3. The insulating sleeve is fitted onto the winding lead wire, and then the insulating sleeve fitted onto the winding lead wire is placed on the overlapping protrusion (130). S4. Connect the three three-phase leads to the corresponding power leads, and put the insulating sleeve on the three-phase leads.

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