Piercing terminal installation structure of motor

Abstract

The utility model discloses a piercing terminal installation structure of a motor, which comprises a terminal groove fixedly installed on a stator assembly, the terminal groove is provided with a plurality of wire arrangement grooves, and each wire arrangement groove is used for limiting and placing an enameled wire of the stator assembly; wherein each wire arrangement groove is correspondingly provided with a puncturing terminal which is inserted into the wire arrangement groove from the upper part to puncture the enameled wire, the puncturing terminal is provided with a puncturing edge, the bottom of the puncturing terminal is provided with a horn guide port, and the horn guide port is connected with the puncturing edge and is used for guiding a puncturing path of the puncturing edge; according to the utility model, the problem that the piercing terminal cannot reliably and stably pierce the enameled wire is solved, and the bad problems of poor contact, open-phase high temperature and motor structure damage in the motor assembly process are further avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor structure field, concretely relates to a motor's puncture terminal installation structure. BACKGROUND

[0002] The main role of motor puncture terminal is to butt joint motor winding copper wire and PCBA circuit board. In the use process, the slit structure of terminal punctures the enamel coating layer of winding enameled wire, and the position of punctured enameled wire is fixed, so that the motor can run stably.

[0003] But the motor puncture terminal structure in prior art is unreasonable, the stress of puncture terminal is unreasonable in the puncture process, the puncture terminal is seriously deformed, and then leads to the bad phenomena such as poor contact, phase shortage high temperature, motor structure damage in motor assembly process.

[0004] Therefore, the applicant hopes to seek technical scheme to solve the above technical problems. SUMMARY

[0005] Therefore, the utility model discloses a motor's puncture terminal installation structure,

[0006] The problem that the puncture terminal cannot reliably and stably puncture the enameled wire is solved, and then the bad problems such as poor contact, phase shortage high temperature, motor structure damage of the motor in the assembly process are avoided.

[0007] The technical scheme adopted by the utility model is as follows:

[0008] A motor's puncture terminal installation structure, including the terminal slot fixedly installed on the stator assembly, be equipped with a plurality of wire arranging grooves on the terminal slot, and each wire arranging groove is used for limiting the enameled wire of stator assembly to place;Wherein, each wire arranging groove is correspondingly equipped with the puncture terminal that inserts into the wire arranging groove from the top and punctures the enameled wire, the puncture terminal is equipped with puncture edge, and the bottom of the puncture terminal is equipped with horn guide port, the horn guide port is connected with the puncture edge, and is used for guiding the puncture path of the puncture edge.

[0009] Preferably, the horn guide port includes an outer port at the bottom and an inner port connected with the puncture edge;Wherein, the caliber of the outer port is greater than the caliber of the enameled wire, and the caliber of the inner port is less than the caliber of the enameled wire.

[0010] Preferably, the bottom of each wire arranging groove is equipped with a limiting groove matched with the enameled wire.

[0011] Preferably, a stand is arranged in the limiting groove for abutting against the enameled wire in the limiting groove, so as to avoid the enameled wire from moving downward with the piercing terminal to cause the piercing terminal to fail to pierce the enameled wire.

[0012] Preferably, the height of the stand is 2-4 mm.

[0013] Preferably, two enameled wires are arranged in each wire arranging groove; the piercing terminal is provided with a first piercing edge and a second piercing edge corresponding to the enameled wires, and the bottom of the first piercing edge and the bottom of the second piercing edge are respectively provided with a first horn guide opening and a second horn guide opening.

[0014] Preferably, the two sides of the piercing terminal are provided with an interference fit structure with the side wall of the corresponding wire arranging groove.

[0015] Preferably, the two sides of the piercing terminal are respectively provided with an overhanging burr, when the piercing terminal is inserted into the corresponding wire arranging groove from above, the overhanging burr pierces into the side wall of the corresponding wire arranging groove.

[0016] Preferably, the terminal groove is provided with three wire arranging grooves.

[0017] Preferably, the stator assembly comprises a stator shell at an outer periphery and a stator core at an inner periphery, and the stator teeth of the stator core are wound with enameled wires as windings; wherein the terminal groove is integrally injection molded with the stator core or fixedly installed on the end face of the stator assembly.

[0018] In the specific implementation, the enameled wire (the lead-out pin of the motor winding) is limited and arranged in the wire arranging groove, the piercing terminal is inserted into the terminal groove by pressure effect (the pressure effect is implemented by a positioning tool and a press), in the process of pressing in, the piercing edge of the piercing terminal cuts open the insulating layer of the enameled wire, so that the winding and the piercing terminal form an electrical path, in the process of pressing in, the horn guide opening of the piercing terminal guides the enameled wire to the piercing edge, thereby avoiding the problem of deformation of the piercing terminal; the piercing terminal installation structure provided by the utility model solves the problem that the piercing terminal cannot reliably and stably pierce the enameled wire, thereby avoiding the problems of poor contact, high temperature due to phase shortage and damage of the motor structure of the motor in the assembly process. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the piercing terminal installation structure of the motor in the specific implementation of the utility model (one piercing terminal is not inserted into the wire arranging groove);

[0020] Figure 2 is Figure 1 is a sectional view in one direction (showing the sectional view of the piercing terminal not inserted into the wire arranging groove);

[0021] Figure 3 is Figure 1 a sectional view in another direction (showing the sectional view angle of the piercing terminal inserted into the wire arranging groove);

[0022] Figure 4 is Figure 1 an exploded structural schematic view of the terminal groove;

[0023] Figure 5 is a structural schematic view of the terminal groove in the specific embodiment of the utility model;

[0024] Figure 6 is a structural schematic view of a single piercing terminal in the specific embodiment of the utility model. EMBODIMENTS

[0025] The utility model discloses a kind of piercing terminal mounting structures of motor, including the terminal groove fixedly installed on stator assembly, it is equipped with several wire arranging grooves on terminal groove, each wire arranging groove is used to limit the placement enameled wire of stator assembly;Wherein, each wire arranging groove is correspondingly provided with the piercing terminal that inserts into the wire arranging groove from above and pierces enameled wire, piercing terminal is equipped with piercing edge, and the bottom of piercing terminal is equipped with horn guide port, horn guide port is connected with piercing edge, for the piercing path of piercing edge is guided.

[0026] In order to make the personnel in the technical field better understand the technical scheme in the utility model, the technical scheme in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, not all. Based on the embodiment in the utility model, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the utility model.

[0027] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and in conjunction with Figure 5 and Figure 6As shown, a piercing terminal mounting structure of a motor includes a terminal groove 4 fixedly mounted on a stator assembly, and a plurality of wire arranging grooves 4a are arranged on the terminal groove 4, each of the wire arranging grooves 4a is used for limiting and placing an enameled wire 3 of the stator assembly; wherein each of the wire arranging grooves 4a is correspondingly provided with a piercing terminal 5 which is inserted into the wire arranging groove 4a from above to pierce the enameled wire 3, the piercing terminal 5 is provided with a piercing edge 51, and the bottom of the piercing terminal 5 is provided with a horn guide opening 52 which is connected with the piercing edge 51 and is used for guiding the piercing path of the piercing edge 51; preferably, in the embodiment, the stator assembly includes a stator shell 1 at an outer periphery and a stator core 2 at an inner periphery, and the stator teeth 2a of the stator core 2 are wound with the enameled wire 3 as a winding; wherein the terminal groove 4 is fixedly mounted on the end face of the stator assembly (in other embodiments, the terminal groove 4 can be integrally injection molded with the stator core 2); specifically preferably, in the embodiment, three wire arranging grooves 4a are arranged on the terminal groove 4.

[0028] Preferably, in the embodiment, two enameled wires 3 (as outgoing pins of the motor winding) are limited and placed in each of the wire arranging grooves 4a; the piercing terminal 5 is provided with a first piercing edge 51a and a second piercing edge 51b corresponding to each of the enameled wires 3, and the bottom of the first piercing edge 51a and the bottom of the second piercing edge 51b are respectively provided with a first horn guide opening 52a and a second horn guide opening 52b.

[0029] Preferably, in order to facilitate the guiding effect of the enameled wire 3 and avoid the deformation of the enameled wire 3 during the downward insertion of the piercing terminal 5, in the embodiment, the first horn guide opening 52a and the second horn guide opening 52b each include an outer opening at the bottom and an inner opening connected with the corresponding piercing edge; wherein the diameter of the outer opening is greater than that of the corresponding enameled wire 3, and the diameter of the inner opening is less than that of the corresponding enameled wire 3.

[0030] Preferably, in order to achieve the effect of limiting and placing the enameled wire 3 in the wire arranging groove 4a, in the embodiment, the bottom of each of the wire arranging grooves 4a is provided with a limiting groove 41 which is limited and matched with the enameled wire 3.

[0031] Preferably, in the embodiment, a stand 42 is arranged in the limiting groove 41 to abut against the enameled wire 3 in the limiting groove 41, so that when the piercing terminal 5 is inserted into the wire arranging groove 4a, the enameled wire 3 cannot be moved downward with the piercing terminal 5 to cause the piercing of the enameled wire 3; preferably, the height of the stand 42 is 2-4 mm; specifically preferably, in the embodiment, the height of the stand 42 is 3 mm.

[0032] Preferably, in order to further facilitate obtaining reliable and stable piercing effect, in the embodiment, the two sides of the piercing terminal 5 and the corresponding wire arranging groove side wall 43 adopt interference fit structure; further preferably, in the embodiment, the two sides of the piercing terminal 5 are respectively provided with an epitaxial overhang 53, when the piercing terminal 5 is inserted into the corresponding wire arranging groove 4a from above, the epitaxial overhang 53 pierces into the corresponding wire arranging groove side wall 43.

[0033] In the specific implementation of the embodiment, after the enameled wire 3 (the lead-out pin of the motor winding) is placed in the wire arranging groove 4a, the piercing terminal 5 is inserted into the terminal groove through pressure action (the pressure action is implemented by a positioning tool and a press machine), in the process of pressing in, the first piercing edge 51a and the second piercing edge 51b of the piercing terminal 5 respectively cut the insulating layer of the corresponding enameled wire 3, so that the winding and the piercing terminal 5 form an electrical path, in the process of pressing in, the first horn guide port 52a and the second horn guide port 52b of the piercing terminal 5 simultaneously guide the corresponding enameled wire 3 to the corresponding piercing edge, avoiding the problem of deformation of the piercing terminal 5; the piercing terminal mounting structure provided by the embodiment solves the problem that the piercing terminal 5 cannot reliably and stably pierce the enameled wire 3, thereby avoiding the problems of poor contact, high temperature due to phase loss and damage to the structure of the motor during assembly of the motor.

[0034] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims should be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0035] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment includes only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A piercing terminal mounting structure for an electric motor, characterized in that, The terminal slot fixedly installed on the stator assembly is provided with a plurality of wire arranging grooves, each of which is used for limiting placement of the enameled wire of the stator assembly; each wire arranging groove is provided with a piercing terminal inserted from above into the wire arranging groove to pierce the enameled wire, the piercing terminal is provided with a piercing edge, and the bottom of the piercing terminal is provided with a horn guide opening connected with the piercing edge and used for guiding the piercing path of the piercing edge.

2. The piercing terminal mounting structure of the electric machine according to claim 1, characterized by, The horn guide opening comprises an outer opening at the bottom and an inner opening connected with the piercing edge; the diameter of the outer opening is larger than that of the enameled wire, and the diameter of the inner opening is smaller than that of the enameled wire.

3. The piercing terminal mounting structure of the electric machine according to claim 1, characterized by, The bottom of each wire arranging groove is provided with a limiting groove matched with the enameled wire.

4. The piercing terminal mounting structure of the electric machine according to claim 3, characterized by, A stand is arranged in the limiting groove and used for abutting against the enameled wire in the limiting groove to prevent the enameled wire from moving downward along the piercing terminal when the piercing terminal is inserted into the wire arranging groove.

5. The piercing terminal mounting structure of the electric machine according to claim 4, wherein The height of the stand is 2-4 mm.

6. The piercing terminal mounting structure of the electric machine according to claim 1, wherein Each wire arranging groove is used for limiting placement of two enameled wires; the piercing terminal is provided with a first piercing edge and a second piercing edge corresponding to the enameled wires, and the bottom of the first piercing edge and the bottom of the second piercing edge are respectively provided with a first horn guide opening and a second horn guide opening.

7. The piercing terminal mounting structure of the electric machine according to claim 1, wherein The two sides of the piercing terminal and the side walls of the corresponding wire arranging grooves are in interference fit structure.

8. The piercing terminal mounting structure of the electric machine according to claim 1 or 5, characterized by, The two sides of the piercing terminal are respectively provided with outer extension burrs, which are inserted into the corresponding side walls of the wire arranging grooves when the piercing terminal is inserted into the corresponding wire arranging grooves from above.

9. The piercing terminal mounting structure of the electric machine according to claim 1, wherein The terminal slot is provided with three wire arranging grooves.

10. The piercing terminal mounting structure of the electric machine according to claim 1, wherein The stator assembly comprises a stator shell at an outer periphery and a stator core at an inner periphery, the stator teeth of the stator core are wound with enameled wires as windings; the terminal slot is integrally injection molded with the stator core or fixedly installed on the end face of the stator assembly.

Images