Casing convenient for PIN-out positioning of iron core

By improving the motor housing structure and adopting a design that facilitates pin positioning of the iron core, the problems of reduced motor life and noise caused by unstable screw installation were solved, achieving stable installation of motor components and reduced noise.

CN223625668UActive Publication Date: 2025-12-02TAICANG HONGXIN PRECISION DIE-CASTING CO LTD
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Patent Information

Application Number
CN202423192280.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-12-02
Estimated Expiration
2034-12-24

AI Technical Summary

Technical Problem

In existing motor housings, unstable screw installation leads to reduced motor lifespan and noise issues.

Method used

The housing design facilitates pin positioning of the iron core, including the housing, mounting ears, positioning clips, and pin slots, to securely mount the motor assembly.

Benefits of technology

This achieved stable installation of the motor assembly, improved motor lifespan, and reduced noise generation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223625668U_ABST
Patent Text Reader

Abstract

The utility model discloses a casing convenient for PIN positioning of an iron core. Comprising a shell, a first mounting lug arranged on one side of the upper portion of the shell, a second mounting lug arranged on one side of the upper portion of the shell, a third mounting lug arranged on one side of the upper portion of the shell, a fourth mounting lug arranged on the lower portion of the shell, a plurality of positioning buckles arranged on the outer circumference of the shell in an array mode and a plurality of PIN grooves formed in the lower portion of the shell. The first mounting lug, the second mounting lug, the third mounting lug and the fourth mounting lug are fixedly mounted on the shell, first fixing holes are formed in the first mounting lug and the third mounting lug, second fixing holes are formed in the first mounting lug, the second mounting lug and the third mounting lug, and third fixing holes are formed in the fourth mounting lug. The positioning device has the beneficial effects that the positioning device is convenient to install and good in positioning effect, and can be used for well positioning the PIN outlet position of the internal iron core and well positioning the ECU chip.
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Description

Technical Field

[0001] This utility model relates to the field of motor housing technology, and in particular to a housing that facilitates the positioning of the iron core pin. Background Technology

[0002] In the prior art, an electric motor includes a motor housing, and a motor stator and a motor rotor installed inside the motor housing. The motor housing includes a shell for accommodating the motor stator and the motor rotor, and an end cover installed at the axial end of the motor housing. The end cover and the housing are usually fixed together with screws. After installation, the screws may be installed incorrectly, resulting in an unstable screw connection. When the motor runs for a long time, the screws may loosen, which will lead to a reduction in the life of the motor and noise generation.

[0003] In view of the above, it is necessary to improve the existing casing structure to adapt to the current needs of casing use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a housing for easy positioning of the PIN of the iron core, including a housing, a first mounting ear disposed on one side of the upper part of the housing, a second mounting ear disposed on one side of the upper part of the housing, a third mounting ear disposed on one side of the upper part of the housing, a fourth mounting ear disposed on the lower part of the housing, a plurality of positioning buckles arranged in an array on the outer circumference of the housing, and a plurality of PIN slots disposed on the lower part of the housing. The first mounting ear, the second mounting ear, the third mounting ear, and the fourth mounting ear are fixedly mounted on the housing. The first mounting ear and the third mounting ear are provided with a first fixing hole, the first mounting ear, the second mounting ear, and the third mounting ear are provided with a second fixing hole, and the fourth mounting ear is provided with a third fixing hole.

[0005] As a further supplement to this technical solution, a bearing hole is provided at the bottom of the housing.

[0006] As a further supplement to this technical solution, the housing is provided with an installation stop.

[0007] As a further supplement to this technical solution, the housing is provided with an inner mounting hole.

[0008] As a further supplement to this technical solution, positioning plates are symmetrically provided on both sides of the bottom of the housing, and positioning holes are provided on the positioning plates.

[0009] As a further supplement to this technical solution, the positioning buckle includes a first positioning block arranged symmetrically on the left and right sides, and a second positioning block disposed between the first positioning blocks, wherein the first positioning block and the second positioning block are fixedly installed on the housing.

[0010] As a further supplement to this technical solution, the second positioning block protrudes from the surface of the first positioning block.

[0011] As a further addition to this technical solution, the lower end of the second positioning block is inclined.

[0012] As a further supplement to this technical solution, the PIN slots are provided with 6 slots, three on the top and three on the bottom, and the three PIN slots on the same side are arranged in sequence in the horizontal direction.

[0013] Its advantages include easy installation and excellent positioning effect, which can accurately locate the PIN position of the internal iron core and the ECU chip. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model from a first angle;

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model from a second angle;

[0016] Figure 3 This is a schematic diagram of the overall structure of this utility model from a third angle;

[0017] In the diagram, 1. Housing; 2. First mounting ear; 3. Second mounting ear; 4. Third mounting ear; 5. Fourth mounting ear; 6. Positioning buckle; 61. First positioning block; 62. Second positioning block; 7. PIN groove; 8. First fixing hole; 9. Second fixing hole; 10. Third fixing hole; 11. Bearing hole; 12. Mounting stop; 13. Mounting inner hole; 14. Positioning plate; 15. Positioning hole. Detailed Implementation

[0018] To facilitate a clearer understanding of this technical solution for those skilled in the art, the following will be described in conjunction with the appendix. Figure 1 -3. A detailed description of the technical solution of this utility model:

[0019] A housing for facilitating PIN positioning of an iron core includes a housing 1, a first mounting ear 2 located on one side of the upper part of the housing 1, a second mounting ear 3 located on one side of the upper part of the housing 1, a third mounting ear 4 located on one side of the upper part of the housing 1, a fourth mounting ear 5 located on the lower part of the housing 1, a plurality of positioning buckles 6 arranged in an array on the outer circumference of the housing 1, and a plurality of PIN slots 7 located on the lower part of the housing 1. The first mounting ear 2, the second mounting ear 3, the third mounting ear 4, and the fourth mounting ear 5 are fixedly mounted on the housing 1. The first mounting ear 2 and the third mounting ear 4 are provided with a first fixing hole 8, a second fixing hole 9, and the fourth mounting ear 5 is provided with a third fixing hole 10. The first fixing hole 8, the second fixing hole 9, and the third fixing hole 10 are threaded holes. The first fixing hole 8 is an M5 thread for fixing the rear end cover, the second fixing hole 9 is an M10 thread for fixing the assembly, and the third fixing hole 10 is an M4 thread for fixing the ECU chip.

[0020] The housing 1 has a bearing hole 11 at the bottom for assembling and fixing bearings.

[0021] The housing 1 has an installation stop 12 for precise positioning and assembly of the end cover.

[0022] The housing 1 has an inner mounting hole 13 for precise positioning and assembly of the iron core.

[0023] The housing 1 has symmetrical positioning plates 14 on both sides of its bottom, and the positioning plates 14 have positioning holes 15 for precise positioning of the ECU chip.

[0024] The structure of the positioning buckle 6 will be described in detail below. The positioning buckle 6 includes a first positioning block 61 arranged symmetrically on the left and right, and a second positioning block 62 arranged between the first positioning blocks 61. The first positioning block 61 and the second positioning block 62 are fixedly installed on the housing 1. The second positioning block 62 protrudes from the surface of the first positioning block 61, and the lower end of the second positioning block 62 is inclined. It is used for the assembly of the ECU protective cover.

[0025] The PIN slot 7 has 6 slots, with three slots on the top and three slots on the bottom. The three PIN slots 7 on the same side are arranged in sequence in the horizontal direction to locate the PIN position of the internal iron core, which has a good limiting effect.

[0026] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A housing for facilitating pin positioning of an iron core, characterized in that, The device includes a housing (1), a first mounting ear (2) disposed on the upper side of the housing (1), a second mounting ear (3) disposed on the upper side of the housing (1), a third mounting ear (4) disposed on the upper side of the housing (1), a fourth mounting ear (5) disposed on the lower side of the housing (1), a plurality of positioning buckles (6) arranged in an array on the outer circumference of the housing (1), and a plurality of PIN slots (7) disposed on the lower side of the housing (1). The first mounting ear (2), the second mounting ear (3), the third mounting ear (4), and the fourth mounting ear (5) are fixedly mounted on the housing (1). The first mounting ear (2) and the third mounting ear (4) are provided with a first fixing hole (8), the first mounting ear (2), the second mounting ear (3), and the third mounting ear (4) are provided with a second fixing hole (9), and the fourth mounting ear (5) is provided with a third fixing hole (10).

2. The housing for facilitating pin positioning of the iron core according to claim 1, characterized in that, The housing (1) has a bearing hole (11) at its bottom.

3. The housing for facilitating pin positioning of the iron core according to claim 1, characterized in that, The housing (1) is provided with an installation stop (12).

4. The housing for facilitating pin positioning of the iron core according to claim 1, characterized in that, The housing (1) is provided with an inner mounting hole (13).

5. A housing for facilitating pin positioning of the iron core according to claim 1, characterized in that, The housing (1) has symmetrical positioning plates (14) on both sides of its bottom, and the positioning plates (14) have positioning holes (15).

6. The housing for facilitating pin positioning of the iron core according to claim 1, characterized in that, The positioning buckle (6) includes a first positioning block (61) arranged symmetrically on the left and right, and a second positioning block (62) arranged between the first positioning blocks (61). The first positioning block (61) and the second positioning block (62) are fixedly installed on the housing (1).

7. A housing for facilitating pin positioning of the iron core according to claim 6, characterized in that, The second positioning block (62) protrudes from the surface of the first positioning block (61).

8. A housing for facilitating pin positioning of the iron core according to claim 7, characterized in that, The lower end of the second positioning block (62) is inclined.

9. A housing for facilitating pin positioning of the iron core according to claim 1, characterized in that, The PIN slots (7) are provided in six positions, with three slots located on the top and three on the bottom. The three PIN slots (7) on the same side are arranged in sequence in the horizontal direction.