Waterproof cover and stepping motor applied to waterproof cover

Abstract

The utility model discloses a waterproof cover and a stepping motor applied to the waterproof cover, and the waterproof cover comprises a side cover body which wraps a housing along the outer wall of the housing on the stepping motor; the end face cover body is connected to one end of the side cover body, an output shaft on the stepping motor penetrates out of the end face cover body, a cover plate on the stepping motor is blocked, and the end face cover body and the side cover body cover the assembly gap between the machine shell and the cover plate together; the flanging blocking part is connected to the other end of the side cover body and blocks the end part of the shell; an inner space is formed among the flanging blocking part, the side cover body and the end face cover body, an opening is formed in one end of the inner space, the machine shell and the cover plate penetrate through the opening and cover the machine shell and the cover plate, and two convex edge plates on the cover plate penetrate out of the side cover body. Therefore, the technical problem of water seepage at the assembly gap between the casing and the cover plate due to insufficient waterproof performance is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of servo motors, in particular to a waterproof cover and a stepping motor applied to the waterproof cover. Background Art

[0002] Permanent magnet reduction stepper motors are widely used in various occasions that require precise control and positioning. The working environment of stepper motors also changes with the different application fields of users.

[0003] For example: in some working environments that come into contact with water, due to insufficient waterproof performance, water will seep into the assembly gap between the casing and the cover, and dust will enter, causing the casing, cover, pole claws, etc. to rust, and the stepper motor will fail to operate, affecting its service life. Utility Model Content

[0004] In view of the above-mentioned deficiencies existing in the related art, the purpose is to provide a waterproof cover and a stepper motor applied to the waterproof cover, so as to solve the technical problem of insufficient waterproof performance in the related art and water seepage in the assembly gap between the casing and the cover.

[0005] The technical solution to achieve the purpose is: a waterproof cover, comprising:

[0006] A side cover body is arranged along the outer wall of the housing on the stepper motor and wraps the housing;

[0007] An end face cover body is connected to one end of the side cover body, is penetrated by the output shaft of the stepper motor, blocks the cover plate on the stepper motor, and covers the assembly gap between the housing and the cover plate together with the side cover body;

[0008] and a flanged stopper connected to the other end of the side cover to stop the end of the housing;

[0009] An inner space is formed between the flanged retaining portion and the side cover body and the end face cover body, one end of the inner space has an open opening, through which the machine housing and the cover plate are covered, and the two flange plates on the cover plate pass through the side cover body;

[0010] The side cover body, the end face cover body and the flanged edge guard are integrally injection-molded from elastic material and have elasticity.

[0011] Furthermore: after plane projection from left to right, the area size of the end face cover body is larger than the area size of the side cover body, and the area size of the side cover body is larger than the area size of the flanged edge stop.

[0012] Further: the side cover body is an arc-shaped structure, with an inclined missing edge on one end and two through grooves on the side wall;

[0013] The open opening is formed between the inclined missing edge, the end face cover and the flanged edge stop;

[0014] The through slot is penetrated by the flange plate, and the through slot hugs the flange plate tightly.

[0015] Further: an avoidance groove is provided on the outer wall of the side cover.

[0016] Further: the end face cover body includes: a first baffle, connected to one end of the side cover body, and its outer shape matches the outer shape of the side cover body; a second baffle, connected to the first baffle, protruding from the outside of the side cover body; and a boss, connected to the first baffle, spaced apart from the second baffle, and the boss is passed through by the output shaft.

[0017] Further: the first baffle plate and the second baffle plate have a recessed portion, and the wall thickness of the recessed portion is smaller than the wall thickness of the first baffle plate or the second baffle plate.

[0018] Further: the boss has a through hole and an inner groove;

[0019] The through hole is connected to the inner groove, and the diameter of the inner groove is larger than the diameter of the through hole, forming a stepped structure;

[0020] The through hole is penetrated by the output shaft and holds the output shaft;

[0021] The inner groove accommodates the shaft segment on the output shaft.

[0022] Further: the flanged stop portion has an arc-shaped edge, and the diameter of the arc-shaped edge is smaller than the diameter T1 of the housing.

[0023] Further: the wall thickness of the flanged retaining portion is 0.4 mm;

[0024] The wall thickness of the first baffle or the second baffle or the boss is 0.6 mm;

[0025] The wall thickness of the recessed portion is 0.3 mm;

[0026] The wall thickness of the side cover is 0.6 mm.

[0027] Furthermore: the width dimension L2 of the inner space is greater than the width dimension L1 of the housing and the cover after assembly;

[0028] The diameter size T2 of the inner space is larger than the diameter size of the arc-shaped edge, and smaller than the diameter size T1 of the housing.

[0029] Furthermore: the open opening is an inclined structure, which is inclined upward from the end face cover body along the side cover body toward the flange stop portion.

[0030] A stepper motor using a waterproof cover comprises: a housing, an output shaft, and a cover plate; the cover plate is connected to the housing; one end of the output shaft passes through the housing, and the other end passes through the cover plate; and further comprises: the waterproof cover;

[0031] The waterproof cover comprises: the side cover body, the end face cover body, and the flanged edge stopper;

[0032] The inner space is formed between the flanged stopper, the side cover body and the end face cover body, and one end of the inner space has the open opening, through which the casing and the cover plate are covered, and the two flange plates on the cover plate pass through the side cover body.

[0033] The above technical scheme is adopted, which has the following beneficial effects: a waterproof cover and a stepper motor used for the waterproof cover, compared with the related art, are provided with a side cover body, an end cover body and a flanged stopper; an inner space is formed between the flanged stopper and the side cover body and the end cover body, one end of the inner space has an open mouth, and the casing and the cover plate are covered through the open mouth, and the two flange plates on the cover plate pass through the side cover body, so as to cover the assembly gap between the casing and the cover plate, and hold the casing, and the reliability of the structure is good; thereby overcoming the technical problem of insufficient waterproof performance and water seepage in the assembly gap between the casing and the cover plate, achieving the technical effect of being able to cover the assembly gap between the casing and the cover plate, reducing the probability of water seepage, and having relatively good waterproof performance, and being practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is one of the structural schematic diagrams of the waterproof cover;

[0035] Figure 2 This is the second schematic diagram of the structure of the waterproof cover;

[0036] Figure 3 for Figure 1 or Figure 2 A partial cross-sectional view of

[0037] Figure 4 for Figure 1 Front view of

[0038] Figure 5 It is a schematic diagram of the structure after the waterproof cover and the stepper motor are assembled;

[0039] Figure 6 for Figure 5 A partial cross-sectional view of

[0040] Figure 7for Figure 5 Left view of

[0041] Figure 8 for Figure 5 Right view of;

[0042] Fig. 9 This is the front view of the stepper motor;

[0043] In the figure: 10. side cover, 11. inclined missing edge, 12. through groove, 13. avoidance groove, 20. end cover, 21. first baffle, 22. second baffle, 23. boss, 23-1. through hole, 23-2. inner groove, 24. recessed portion, 30. flanged baffle, 31. arcuate edge, 40. inner space, 41. open mouth, 100. housing, 200. output shaft, 201. shaft section, 300. cover plate, 301. convex edge plate, 400. outlet box. DETAILED DESCRIPTION

[0044] In order to make the content easier to understand, the following is a further detailed description based on specific embodiments and in conjunction with the accompanying drawings;

[0045] A waterproof cover and a stepper motor applied to the waterproof cover solve the technical problem of insufficient waterproof performance in the related art, which causes water seepage at the assembly gap between the casing and the cover plate. The waterproof cover can be manufactured and used, and can cover the assembly gap between the casing and the cover plate, reduce the probability of water seepage, and have a positive effect of relatively good waterproof performance. The overall idea is as follows:

[0046] One implementation method:

[0047] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 As shown; A waterproof cover and a stepper motor applied to the waterproof cover, the waterproof cover comprising:

[0048] The side cover 10 is arranged along the outer wall of the housing 100 on the stepping motor and wraps the housing 100;

[0049] The end face cover 20 is connected to one end of the side cover 10, is penetrated by the output shaft 200 on the stepper motor, blocks the cover plate 300 on the stepper motor, and covers the assembly gap between the housing 100 and the cover plate 300 together with the side cover 10;

[0050] and a flanged stopper 30 connected to the other end of the side cover 10 to block the end of the housing 100;

[0051] An inner space 40 is formed between the flanged stopper 30 and the side cover 10 and the end face cover 20. One end of the inner space 40 has an open opening 41. The inner space 40 is penetrated through the open opening 41 to cover the housing 100 and the cover plate 300. The two flange plates 301 on the cover plate 300 pass through the side cover 10.

[0052] The side cover 10, the end cover 20 and the flanged edge stop 30 are integrally injection-molded with elastic material and have elasticity;

[0053] The stepper motor using the waterproof cover comprises: a housing 100, an output shaft 200, and a cover plate 300; the cover plate 300 is connected to the housing 100; one end of the output shaft 200 passes through the housing 100, and the other end passes through the cover plate 300; and further comprises: the waterproof cover;

[0054] The waterproof cover comprises: the side cover body 10, the end face cover body 20, and the flanged edge stopper 30;

[0055] The inner space 40 is formed between the flanged stopper 30 and the side cover 10 and the end face cover 20. One end of the inner space 40 has an open opening 41. The inner space 40 is penetrated through the open opening 41 to cover the housing 100 and the cover 300. The two flanged plates 301 on the cover 300 pass through the side cover 10.

[0056] A side cover 10, an end cover 20 and a flanged stopper 30 are provided; an inner space 40 is formed between the flanged stopper 30 and the side cover 10 and the end cover 20, and an open port 41 is provided at one end of the inner space 40, through which the housing 100 and the cover 300 are covered, and two flanged plates 301 on the cover 300 pass through the side cover 10, so as to cover the assembly gap between the housing 100 and the cover 300, and hold the housing 100, and the reliability of the structure is good;

[0057] Another embodiment:

[0058] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown; in implementation, the side cover body 10, the end face cover body 20 and the flanged retaining portion 30 are integrally injection-molded with an elastic material, and the elastic material is preferably an EPDM rubber material, which is soft and elastic. When assembling the waterproof cover, it can be more conveniently assembled with the housing 100 and the cover plate 300, and the operation is relatively convenient;

[0059] After plane projection from left to right, the area size of the end face cover body 20 is larger than the area size of the side cover body 10, and the area size of the side cover body 10 is larger than the area size of the flanged edge stop 30;

[0060] The control of the area size is conducive to forming the inner space 40. With the inclined opening 41 and the soft rubber material, when assembling the waterproof cover, it can be more convenient to assemble with the housing 100 and the cover plate 300, and the operation is relatively convenient;

[0061] Another embodiment:

[0062] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown; when implemented, the side cover body 10 is an arc-shaped structure, with an inclined missing edge 11 on one end and two through grooves 12 on the side wall;

[0063] The opening 41 is formed between the inclined missing edge 11, the end face cover 20 and the flanged edge stop 30;

[0064] The through groove 12 is penetrated by the convex edge plate 301, and the through groove 12 hugs the convex edge plate 301 to prevent water from entering through the through groove 12, and the waterproof performance is relatively good;

[0065] The outer wall of the side cover 10 has an escape groove 13; the escape groove 13 is an arc-shaped groove; the escape groove 13 is provided, when the cover plate 300 is connected to the installation position, the screws are inserted into the convex edge plate 301, and the screws will not scratch and damage the side cover 10;

[0066] Another embodiment:

[0067] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown; in implementation, the end face cover 20 includes: a first baffle 21, connected to one end of the side cover 10, and having an outer shape matching the outer shape of the side cover 10; a second baffle 22, connected to the first baffle 21, protruding from the outside of the side cover 10; and a boss 23, connected to the first baffle 21, spaced apart from the second baffle 22, and the boss 23 is penetrated by the output shaft 200;

[0068] The first baffle 21 is roughly circular in shape, and the second baffle 22 is roughly T-shaped. After the two are combined, they can have enough area to block the cover plate 300, and the appearance is relatively beautiful and the waterproof performance is relatively good.

[0069] The first baffle plate 21 and the second baffle plate 22 have a recessed portion 24, and the wall thickness of the recessed portion 24 is smaller than the wall thickness of the first baffle plate 21 or the second baffle plate 22; the control of the wall thickness makes it easier to stretch the thin wall, and the flexibility of operation is better during assembly;

[0070] The boss 23 has a through hole 23-1 and an inner groove 23-2; the through hole 23-1 is connected to the inner groove 23-2, and the diameter of the inner groove 23-2 is larger than the diameter of the through hole 23-1, forming a stepped structure;

[0071] The through hole 23 - 1 is penetrated by the output shaft 200 and holds the output shaft 200 without affecting the normal rotation of the output shaft 200 , and the waterproof performance is relatively good;

[0072] The inner groove 23-2 accommodates the shaft section 201 on the output shaft 200, and the shaft section 201 is in close contact with the inner groove 23-2, and the waterproof performance is relatively good. Moreover, when the output shaft 200 moves, it will not rub the inner groove 23-2, and will not damage the inner groove 23-2, and the structural reliability is good;

[0073] Another embodiment:

[0074] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 8 As shown; during implementation, the flanged stopper 30 has an arcuate edge 31, and the diameter of the arcuate edge 31 is smaller than the diameter T1 of the housing 100; the arcuate edge 31 is provided, and the diameter of the arcuate edge 31 is controlled, so that the flanged stopper 30 can hold the housing 100, and the arcuate edge 31 can also block the edge of the nameplate on the housing 100, reducing the probability of the nameplate falling off, and will not cover the nameplate logo, which is convenient for querying the stepper motor model;

[0075] A flanged retaining portion 30 is provided. When the end face cover 20 and the side cover 10 cover the assembly gap between the housing 100 and the cover plate 300 together, the flanged retaining portion 30 can hold the end of the housing 100, so that the waterproof cover can cover the housing 100 and the cover plate 300 without falling off, and the waterproof performance is relatively good;

[0076] Another embodiment:

[0077] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown; in implementation, the wall thickness of the flanged baffle 30 is 0.4 mm; the wall thickness of the first baffle 21 or the second baffle 22 or the boss 23 is 0.6 mm; the wall thickness of the recessed portion 24 is 0.3 mm; the wall thickness of the side cover 10 is 0.6 mm;

[0078] The control of the wall thickness ensures the structural strength of the waterproof cover itself, and the wall thickness of the flanged stopper 30 and the recessed portion 24 is relatively thin, so during assembly, the flanged and stretched parts are more flexible to operate;

[0079] Another embodiment:

[0080] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 As shown; during implementation, the width dimension L2 of the inner space 40 is greater than the width dimension L1 of the housing 100 and the cover plate 300 after assembly;

[0081] The diameter size T2 of the inner space 40 is larger than the diameter size of the arc-shaped edge 31 and smaller than the diameter size T1 of the housing 100;

[0082] The open opening 41 is an inclined structure, which is inclined upward from the end face cover 20 along the side cover 10 toward the flanged edge stop 30;

[0083] The size control of the inner space 40 and the inclined structure of the opening 41 are conducive to assembly on the housing 100 and the cover 300, and the operation flexibility is good, and the arrangement of the outlet box 400 is not affected, and the structural reliability is good;

[0084] The structure of stepper motor:

[0085] See Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9; The stepper motor with waterproof cover includes: a housing 100, an output shaft 200, a cover plate 300, an outlet box 400, a pole claw, a rotor, a stator, a nameplate, a bearing and other structures; it is a common structure in the prior art; the nameplate is connected to the outer wall of the end of the housing 100; the pole claw, the rotor, the stator and the bearing are connected inside the housing 100; it is not the invention point of the utility model, but only for better description of the utility model and facilitating understanding of the technical solution of the utility model; after seeing the disclosed content, ordinary technicians in this field can directly and unambiguously know how to set the stepper motor without creative labor or excessive experiments;

[0086] The working principle is as follows: an inner space 40 is formed between the flanged retaining portion 30 and the side cover body 10 and the end face cover body 20. One end of the inner space 40 has an open opening 41. The housing 100 and the cover plate 300 are penetrated through the open opening 41, and the two flange plates 301 on the cover plate 300 pass through the side cover body 10, so as to cover the assembly gap between the housing 100 and the cover plate 300, and hold the housing 100, and the reliability of the structure is good.

[0087] In the description, it should be understood that the terms "upper", "lower", "left", "right", "front", "back" and the like indicating directions or positional relationships are based on the positional relationships described in the drawings and are only for the convenience of description or simplified description, rather than indicating specific directions that must be possessed; the operation process described in the embodiments is not an absolute usage procedure and corresponding adjustments may be made in actual use;

[0088] Unless otherwise defined, the technical or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the relevant field; the words "first", "second" and similar words used in the specification and claims do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "a" do not necessarily indicate a quantity limitation, but indicate the existence of at least one, which needs to be determined according to the content of the embodiment;

[0089] The above is only a preferred specific implementation method, but the protection scope is not limited to it. Any technician familiar with this technical field can make equivalent substitutions or changes based on the technical solutions and inventive concepts within the disclosed technical scope, which should be covered by the protection scope.

Claims

1. A waterproof cover, characterized in that: include: A side cover (10) is arranged along the outer wall of the housing (100) on the stepping motor to wrap the housing (100); An end face cover (20) is connected to one end of the side cover (10), is passed through the output shaft (200) on the stepping motor, blocks the cover plate (300) on the stepping motor, and together with the side cover (10) covers the assembly gap between the housing (100) and the cover plate (300); and a flanged stopper (30) connected to the other end of the side cover (10) to stop the end of the housing (100); An inner space (40) is formed between the flanged retaining portion (30), the side cover (10) and the end face cover (20); one end of the inner space (40) has an open opening (41), through which a device penetrates to cover the housing (100) and the cover plate (300), and two flange plates (301) on the cover plate (300) penetrate out of the side cover (10); The side cover body (10), the end face cover body (20) and the flanged edge guard portion (30) are integrally injection-molded from an elastic material and have elasticity.

2. A waterproof cover according to claim 1, characterized in that: After plane projection from left to right, the area size of the end face cover body (20) is larger than the area size of the side cover body (10), and the area size of the side cover body (10) is larger than the area size of the flanged edge stop (30).

3. A waterproof cover according to claim 2, characterized in that: The side cover (10) is an arc-shaped structure, with an inclined missing edge (11) on one end and two through grooves (12) on the side wall; The open opening (41) is formed between the inclined missing edge (11), the end face cover (20) and the flanged edge stop (30); The through slot (12) is penetrated by the flange plate (301), and the through slot (12) tightly embraces the flange plate (301).

4. A waterproof cover according to claim 3, characterized in that: The outer wall of the side cover (10) is provided with an avoidance groove (13).

5. A waterproof cover according to claim 4, characterized in that: The end face cover (20) comprises: a first baffle (21) connected to one end of the side cover (10), and having an outer shape matching the outer shape of the side cover (10); a second baffle (22) connected to the first baffle (21) and protruding from the outside of the side cover (10); and a boss (23) connected to the first baffle (21) and spaced apart from the second baffle (22), wherein the boss (23) is penetrated by the output shaft (200).

6. A waterproof cover according to claim 5, characterized in that: The first baffle plate (21) and the second baffle plate (22) are provided with a recessed portion (24), and the wall thickness of the recessed portion (24) is smaller than the wall thickness of the first baffle plate (21) or the second baffle plate (22).

7. A waterproof cover according to claim 6, characterized in that: The boss (23) has a through hole (23-1) and an inner groove (23-2); The through hole (23-1) is connected to the inner groove (23-2), and the diameter of the inner groove (23-2) is larger than the diameter of the through hole (23-1), forming a stepped structure; The output shaft (200) passes through the through hole (23-1) to hold the output shaft (200); The inner groove (23-2) accommodates the shaft segment (201) on the output shaft (200).

8. A waterproof cover according to claim 7, characterized in that: The flanged edge stop (30) has an arcuate edge (31), and the diameter of the arcuate edge (31) is smaller than the diameter T1 of the housing (100).

9. A waterproof cover according to claim 8, characterized in that: The wall thickness of the flanged retaining portion (30) is 0.4 mm; The wall thickness of the first baffle (21) or the second baffle (22) or the boss (23) is 0.6 mm; The wall thickness of the recessed portion (24) is 0.3 mm; The wall thickness of the side cover (10) is 0.6 mm.

10. A waterproof cover according to claim 9, characterized in that: A width dimension L2 of the inner space (40) is greater than a width dimension L1 of the housing (100) and the cover plate (300) after being assembled; The diameter size T2 of the inner space (40) is larger than the diameter size of the arc-shaped edge (31) and smaller than the diameter size T1 of the housing (100).

11. A waterproof cover according to claim 10, characterized in that: The open opening (41) is an inclined structure, and is inclined upward from the end face cover body (20), along the side cover body (10), toward the flanged edge stop (30).

12. A stepping motor using a waterproof cover, comprising: A housing (100), an output shaft (200), and a cover plate (300); the cover plate (300) is connected to the housing (100); one end of the output shaft (200) passes through the housing (100), and the other end passes through the cover plate (300); characterized in that it also includes: a waterproof cover according to any one of claims 1 to 11; The waterproof cover comprises: the side cover body (10), the end face cover body (20), and the flanged edge stopper (30); The inner space (40) is formed between the flanged edge stop (30), the side cover (10) and the end face cover (20), and one end of the inner space (40) has an open opening (41), through which a device penetrates to cover the housing (100) and the cover plate (300), and the two flange plates (301) on the cover plate (300) penetrate out of the side cover (10).

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