Wiring terminal block and motor insulation support

Abstract

The utility model provides a wiring terminal block and a motor insulation support. The wiring terminal block comprises a terminal block, a crimping terminal and a crimped enameled wire head of a motor. The terminal block comprises a terminal block body, a plurality of tooth-shaped structures arranged on the terminal block body, and a plurality of terminal grooves between adjacent tooth-shaped structures. Supporting structures extending along the terminal groove are arranged on the two sides of the terminal groove respectively, the enameled wire head penetrates through the terminal groove, the crimping terminal presses the enameled wire head, and the supporting structures support the enameled wire head. According to the utility model, the supporting structure is arranged on the wiring terminal block to support the varnished wire head penetrating through the terminal groove, so that the varnished wire head is fixed, and the vibration position of the varnished wire head in transportation or operation is prevented from being far away from a puncture point of the varnished wire head; meanwhile, the paint dripping structures are arranged on the varnished wire heads on the two sides of the terminal grooves, the varnished wire heads and the crimping puncture points of the varnished wire heads are fixed, and the failure risk of the puncture points is better avoided.

Description

Technical Field

[0001] The utility model relates to the field of compressors, in particular to a wiring terminal block and a motor insulation bracket. Background Art

[0002] The variable frequency motor can automatically adjust the speed according to the load demand, reduce the high energy consumption under partial load, thereby greatly reducing energy consumption and saving energy. More and more variable frequency motors use enameled wire crimping, but the enameled wire may vibrate continuously at the crimping position of the terminal block during transportation and long-term operation, resulting in poor contact at the crimping position of the enameled wire. How to enhance the electrical contact performance of the enameled wire crimping position is an urgent problem to be solved.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In view of the problems in the prior art, the purpose of the utility model is to provide a terminal block and a motor insulation bracket. The terminal block is provided with a supporting structure to support the enameled wire ends passing through the terminal slots. Accordingly, the electrical connection at the terminal block is more stable.

[0005] The embodiment of the utility model provides a terminal block, comprising a terminal block, a crimping terminal and a crimped enameled wire end of a motor;

[0006] The terminal block includes a terminal block body, a plurality of tooth-shaped structures disposed on the terminal block body, and a plurality of terminal slots between adjacent tooth-shaped structures;

[0007] Support structures extending along the terminal groove are respectively arranged on both sides of the terminal groove, the enameled wire ends are passed through the terminal groove, the crimping terminals press the enameled wire ends, and the support structures support the enameled wire ends.

[0008] According to some examples of the present invention, the cross-section of the support structure is arc-shaped.

[0009] According to some examples of the present utility model, the support structure includes an arc-shaped portion and positioning protrusions arranged on both sides of the arc-shaped portion.

[0010] According to some examples of the present invention, a paint dripping structure is provided on an end surface of the enameled wire head facing away from the supporting structure.

[0011] According to some examples of the present invention, the paint dripping structure extends from the outside of the terminal groove to the crimping point between the crimping terminal and the enameled wire head.

[0012] According to some examples of the present utility model, the crimping terminal includes a mounting portion, a crimping portion, and a positioning portion between the mounting portion and the crimping portion;

[0013] The crimping portion is provided with a blade.

[0014] According to some examples of the present invention, the crimping portion is provided with a Y-shaped crimping groove,

[0015] The blade is arranged at the entrance of the Y-shaped crimping groove.

[0016] The embodiment of the utility model further provides a motor insulation bracket, comprising an annular bracket body and at least one of the wiring terminal blocks;

[0017] At least one of the wiring terminal blocks is connected to the bracket body.

[0018] The terminal block of the utility model is provided with a supporting structure to support the enameled wire ends inserted into the terminal slots, thereby fixing the enameled wire ends and reducing the vibration of the enameled wire ends during transportation or operation. The position is far away from the puncture point of the enameled wire ends. At the same time, by arranging paint dripping structures on the enameled wire ends on both sides of the terminal slots, the crimping puncture points of the enameled wire ends are fixed, thereby better avoiding the failure risk of the puncture points and improving the crimping reliability of the enameled wire ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0020] Figure 1 A schematic diagram of the structure of a terminal block according to an embodiment of the utility model; and

[0021] Figure 2 The figure is a schematic structural diagram of a crimping terminal according to an embodiment of the present utility model. DETAILED DESCRIPTION

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the utility model will be comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and should not be construed as limitations on the utility model. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0023] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0026] In view of the existing technical problems, the utility model provides a terminal block and a motor insulation bracket, the terminal block includes a terminal block, a crimping terminal and a crimped enameled wire end of the motor; the terminal block includes a terminal block body, a plurality of tooth structures arranged on the terminal block body, and a plurality of terminal slots between adjacent tooth structures; the two sides of the terminal slot are respectively provided with support structures extending along the terminal slot, the enameled wire end is inserted into the terminal slot, the crimping terminal presses the enameled wire end, and the support structure supports the enameled wire end. The terminal block of the utility model is provided with a support structure to support the enameled wire end inserted into the terminal slot, which plays a role in fixing the enameled wire end, reducing the vibration position of the enameled wire end during transportation or operation, and keeping it away from the puncture point of the enameled wire end; at the same time, by providing a paint dripping structure on the enameled wire end on both sides of the terminal slot, the enameled wire end and the enameled wire end are fixed at the crimping puncture point, so as to better avoid the failure risk of the puncture point and improve the crimping reliability of the enameled wire end.

[0027] The structure of the terminal block and the motor insulation bracket of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It can be understood that the various specific embodiments are not intended to limit the protection scope of the present invention.

[0028] Figure 1 This is a structural schematic diagram of a terminal block according to an embodiment of the utility model. Specifically, the terminal block includes a terminal block 1, a crimping terminal 3, and a crimped enameled wire end 2 of a motor; the terminal block 1 includes a terminal block body 11, a plurality of tooth structures 12a / 12b arranged on the terminal block body 11, and a plurality of terminal slots a between adjacent tooth structures.

[0029] like Figure 1 As shown, the terminal slot a between the toothed structure 12a and the adjacent toothed structure 12b usually extends in a direction perpendicular to the arrangement of the toothed structures, the enameled wire head 2 is inserted into the terminal slot a, the terminal slot a plays the role of clamping and positioning the enameled wire head 2, and the toothed structure isolates the enameled wire heads 2 in two adjacent terminal slots a. The two sides of the terminal slot a of the present invention are respectively provided with support structures 13 extending along the terminal slot a, and the two support structures 13 on both sides of a terminal slot a constitute a support surface to support the enameled wire head 2 in the terminal slot a. Specifically, the support structure 13 is arranged along the length direction of the enameled wire head 2. The enameled wire head 2 is then pressed by the crimping terminal 3, and the crimping terminal 3 is clamped in the slot surrounded by the toothed structure. The length of the support structure 13 along the extension direction of the terminal slot a, that is, the length of the support structure 13 protruding from the outer wall of the terminal block 1 = can be set according to the hardness of the enameled wire head 2 (determined by the diameter, material, etc.) and the structure of the terminal slot a, and is not limited here. The support structures on both sides of the terminal slot can reduce vibration of the enameled wire end during transportation or operation and excessive bending of the enameled wire end 2 on both sides of the terminal slot a.

[0030] The support structure 13 may be as follows Figure 1 As shown, its cross section is arc-shaped, and the curvature of the arc can be adapted to the curvature of the outer diameter of the enameled wire end 2. At the same time, in order to further improve the stability of the enameled wire end, the arc-shaped portion of the support structure 13 and the positioning protrusions 131 arranged on both sides of the arc-shaped portion. The positioning protrusions 131 limit the movement of the enameled wire end in a direction perpendicular to the extension direction of the terminal slot a.

[0031] In some embodiments, the crimping terminal 3 includes a mounting portion 31, a crimping portion 32, and a positioning portion 33 between the mounting portion 31 and the crimping portion 32. The crimping portion may be provided with a blade for piercing the paint film of the enameled wire head 2 when crimping the enameled wire head 2, so that the blade body inside the enameled wire head 2 is electrically connected to the crimping terminal 3. Figure 2The structure diagram of the crimping terminal of one embodiment of the utility model is shown, wherein the crimping portion may be provided with a Y-shaped crimping groove, and the blade is provided at the entrance 321 of the Y-shaped crimping groove. The crimping terminal 3 is provided with a blade to save the stripping process at the connection between the enameled wire end 2 and the crimping terminal.

[0032] When the wire diameter of the enameled wire end is thin or the enameled wire material (such as aluminum wire) is soft, the enameled wire end will be in a state of slight vibration during transportation or long-term operation, affecting the contact at the puncture position, and there is a risk of electrical connection failure and thus motor failure. In order to improve the crimping reliability of the enameled wire end, further, a paint dripping structure 4 is provided on one end face of the enameled wire end facing away from the support structure. Preferably, the paint dripping structure 4 can extend from the outside of the terminal slot a to the crimping point between the crimping terminal 3 and the enameled wire end 2, and when a blade is provided at the crimping point, it extends to the puncture point of the paint film of the enameled wire end 2.

[0033] The utility model also provides a motor insulation support, comprising an annular support body and at least one terminal block; at least one terminal block is connected to the support body. The terminal block 1 can be an arc-shaped device that matches the annular support body, and the terminal block 1 can be connected to the outside of the support body, or to one end face of the support body.

[0034] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0035] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A terminal block, characterized in that: It includes a terminal block, a crimping terminal and a crimped enameled wire end of a motor; The terminal block includes a terminal block body, a plurality of tooth-shaped structures disposed on the terminal block body, and a plurality of terminal slots between adjacent tooth-shaped structures; Support structures extending along the terminal groove are respectively arranged on both sides of the terminal groove, the enameled wire ends are passed through the terminal groove, the crimping terminals press the enameled wire ends, and the support structures support the enameled wire ends.

2. The terminal block according to claim 1, characterized in that: The cross section of the supporting structure is arc-shaped.

3. The terminal block according to claim 1, characterized in that: The supporting structure includes an arc-shaped portion and positioning protrusions arranged on both sides of the arc-shaped portion.

4. The terminal block according to claim 1, characterized in that: A paint dripping structure is arranged on one end surface of the enameled wire head away from the supporting structure.

5. The terminal block according to claim 4, characterized in that: The paint dripping structure extends from the outer side of the terminal groove to the crimping position between the crimping terminal and the enameled wire head.

6. The connection terminal block according to claim 1, characterized in that: The crimping terminal comprises a mounting portion, a crimping portion, and a positioning portion between the mounting portion and the crimping portion; The crimping portion is provided with a blade.

7. The terminal block according to claim 6, characterized in that: The crimping portion is provided with a Y-shaped crimping groove, The blade is arranged at the entrance of the Y-shaped crimping groove.

8. A motor insulation bracket, characterized in that: It comprises an annular support body and at least one terminal block according to any one of claims 1 to 7; At least one of the wiring terminal blocks is connected to the bracket body.

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