Waterproof cover and motor using same

Abstract

The waterproof cover comprises a cover body, the middle part of the cover body is provided with a step-shaped concave space, one side of the step-shaped concave space is open and penetrates through one end of the cover body; one end of the cover body is provided with a sealing surface, the other end of the cover body is provided with a first opening, and the first opening penetrates through the cover body and is communicated with the stepped concave space; the side wall of the cover body is further provided with two second openings. The cover body wraps a shell on the motor through the step-shaped concave space and holds the position, close to the edge, of a cover plate on the motor. After the cover plate is connected with the mounting position plane, the sealing surface is attached to the mounting position plane; a connecting wire box on the motor penetrates out of the first opening; a cover plate lug plate on the cover plate penetrates out of the second opening, the cover plate lug plate is tightly held by the second opening, and the cover plate lug plate is used for being connected with an installation position plane. The technical problems that the waterproof direction is single, the coverage area is small, the gap of the stepping motor cannot be covered, and the waterproof performance is insufficient are solved.

Description

Technical Field

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

[0002] A stepper motor is an open-loop control element that converts electrical pulse signals into angular or linear displacement;

[0003] Among them, micro stepper motors are widely used in the existing market. When in use, some stepper motors flow to the market in areas with relatively harsh working environments. Since the stepper motor itself has a low waterproof level, a single waterproof direction, and a small coverage area, it cannot cover the gaps in the stepper motor and the waterproofness is insufficient, causing the stepper motor casing to rust and water to enter the gaps. In severe cases, the stepper motor will fail to operate and parts will be seriously damaged. 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 motor using the waterproof cover, so as to solve the technical problems in the related art of single waterproof direction, small coverage area, inability to cover the gaps of the stepper motor, and insufficient waterproofness.

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

[0006] A cover body, wherein the middle portion of the cover body has a stepped concave space, one side of the stepped concave space is open and passes through one end of the cover body;

[0007] The cover body has a sealing surface on one end and a first opening on the other end, wherein the first opening penetrates the cover body and communicates with the stepped concave space;

[0008] The side wall of the cover body also has two second openings;

[0009] The cover body wraps the outer shell of the motor through the stepped concave space and embraces the cover plate on the motor near the edge;

[0010] After the cover plate is connected to the installation position plane, the sealing surface is in contact with the installation position plane;

[0011] The first opening is penetrated by the connection box on the motor;

[0012] The second opening is penetrated by the cover plate ear plate on the cover plate, the second opening tightly embraces the cover plate ear plate, and the cover plate ear plate is used to be connected to the installation position plane;

[0013] The cover body is made of elastic material and is integrally injection-molded, and has elasticity.

[0014] Further: the cover body comprises: a main body having the first opening and the second opening;

[0015] A boss connected to the main body, arranged in the stepped concave space, and arranged on one side of the first opening;

[0016] And a sealing rib connected to the main body, spaced apart from the first opening, and having the stepped concave space together with the main body, and the sealing rib having the sealing surface.

[0017] Further: the main body includes: a first part; and a second part;

[0018] The height dimension of the first part is greater than the height dimension of the second part, and the end surfaces of one end of the first part and the second part are flush, and the sealing rib is connected to the end surface.

[0019] Further: the first part includes: a first end face sealing plate; and a first side sealing plate, one end of which is connected to the first end face sealing plate to form a first space with the first end face sealing plate, and the first side sealing plate has the second opening;

[0020] The second part comprises: a second end face sealing plate connected to the first side sealing plate, the second end face sealing plate having the first opening; and a second side sealing plate connected to the second end face sealing plate and connected to the first side sealing plate, a second space being formed between the second side sealing plate and the second end face sealing plate;

[0021] The second space is communicated with the first space.

[0022] Further: the first space is a cylindrical space.

[0023] Further: the second space is a square space.

[0024] Further: the outer wall of the first side sealing plate is provided with two first avoidance grooves.

[0025] Further: the boss is connected to the second part, arranged in the second space, and the height dimension of the boss is smaller than the height dimension of the second side sealing plate.

[0026] Further: a third space is provided in the middle of the sealing rib, and the third space, the first space and the second space together form the stepped concave space;

[0027] The area size of the third space after plane projection from top to bottom is smaller than the area size of the first space and the second space after plane projection from top to bottom.

[0028] Furthermore: the sealing rib is provided with a second avoidance groove, and the second avoidance groove is connected to the third space.

[0029] Furthermore: the wall thickness of the main body or the sealing rib is 1 mm.

[0030] Further: the first opening is a rectangular through slot.

[0031] Furthermore: the second opening has a rectangular structure, and its area is smaller than the cross-sectional area of ​​the cover plate ear plate.

[0032] A motor using a waterproof cover comprises: a housing, a cover plate, and a connection box; the housing connects the cover plate and the connection box; and further comprises: the waterproof cover;

[0033] The waterproof cover wraps the outer shell of the motor through the stepped concave space on the cover body, and embraces the cover plate on the motor near the edge;

[0034] The sealing surface is fitted with the installation position plane;

[0035] Passing through the first opening through the connection box on the motor;

[0036] The cover plate ear plate on the cover plate passes through the second opening, and the second opening tightly embraces the cover plate ear plate, and the cover plate ear plate is used to be connected to the installation position plane.

[0037] The above technical scheme is adopted, which has the following beneficial effects: a waterproof cover and a motor using the waterproof cover, compared with the related art, are provided with a cover body; the cover body wraps the outer shell on the motor through the stepped concave space, and hugs the cover plate on the motor near the edge to form a seal; after the cover plate is connected to the installation position plane, the sealing surface fits the installation position plane to form a seal; the first opening is passed through by the connecting wire box on the motor, which will not affect the assembly of the connecting wire box; the second opening is passed through by the cover plate ear plate on the cover plate, and the second opening hugs the cover plate ear plate to form a seal, and the cover plate ear plate is used to connect with the installation position plane, which is convenient to install; the cover body can cover the gap, the coverage area is relatively large, multi-directional waterproof, and the waterproof performance is relatively good; thereby overcoming the technical problems of single waterproof direction, small coverage area, inability to cover the gap of the stepping motor, and insufficient waterproof performance, and achieving the technical effects of multi-directional waterproof, relatively large coverage area, and relatively good waterproof performance, and having practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic diagram of the structure of the cover body;

[0039] Figure 2 is a partial cross-sectional view of the cover body;

[0040] Figure 3 It is a schematic diagram of the structure after the cover body and the motor are assembled;

[0041] Figure 4 It is a schematic diagram of the structure after the cover body and the motor are assembled and connected to the installation position plane;

[0042] Figure 5 It is a partial cross-sectional view after the cover body and the motor are assembled;

[0043] Figure 6 for Figure 3 Front view of

[0044] Figure 7 for Figure 3 Rear view of

[0045] In the figure: 10. Cover body, 10-1. Main body, 10-11. First part, 10-111. First end face sealing plate, 10-112. First side sealing plate, 10-112-1. First avoidance groove, 10-113. First space, 10-12. Second part, 10-121. Second end face sealing plate, 10-122. Second side sealing plate, 10-123. Second space, 10-2. Boss, 10-3. Sealing rib, 10-31. Third space, 10-32. Second avoidance groove, 11. Stepped concave space, 12. Sealing surface, 13. First opening, 14. Second opening, 101. Shell, 102. Cover plate, 102-1. Cover plate ear plate, 103. Connecting box, 200. Installation position plane. DETAILED DESCRIPTION

[0046] 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;

[0047] A waterproof cover and a motor using the waterproof cover solve the technical problems of single waterproof direction, small coverage area, inability to cover stepper motor gaps, and insufficient waterproofness in the related art. The waterproof cover can be manufactured and used, and achieves the positive effects of multi-directional waterproofing, relatively large coverage area, and relatively good waterproofness. The overall idea is as follows:

[0048] One implementation method:

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown; a waterproof cover and a motor using the waterproof cover, the waterproof cover comprising:

[0050] A cover body 10, wherein the middle portion of the cover body 10 has a stepped concave space 11, one side of the stepped concave space 11 is open and passes through one end of the cover body 10;

[0051] The cover body 10 has a sealing surface 12 on one end and a first opening 13 on the other end. The first opening 13 penetrates the cover body 10 and communicates with the stepped concave space 11.

[0052] The side wall of the cover body 10 also has two second openings 14;

[0053] The cover body 10 wraps the housing 101 on the motor through the stepped concave space 11 and embraces the cover plate 102 on the motor near the edge;

[0054] After the cover plate 102 is connected to the installation position plane 200, the sealing surface 12 is in contact with the installation position plane 200;

[0055] The first opening 13 is penetrated by the connection box 103 on the motor;

[0056] The second opening 14 is penetrated by the cover plate ear plate 102 - 1 on the cover plate 102 , and the second opening 14 tightly embraces the cover plate ear plate 102 - 1 , and the cover plate ear plate 102 - 1 is used to connect with the installation position plane 200 ;

[0057] The cover body 10 is made of elastic material and is integrally injection-molded, and has elasticity;

[0058] The motor using the waterproof cover comprises: a housing 101, a cover plate 102, and a connection box 103; the housing 101 connects the cover plate 102 and the connection box 103; and further comprises: the waterproof cover;

[0059] The waterproof cover wraps the housing 101 on the motor through the stepped concave space 11 on the cover body 10 and embraces the edge of the cover plate 102 on the motor;

[0060] The sealing surface 12 is in contact with the installation position plane 200;

[0061] Passing through the first opening 13 and being passed through the connection box 103 on the motor;

[0062] The cover plate ear plate 102 - 1 on the cover plate 102 passes through the second opening 14 , and the second opening 14 tightly holds the cover plate ear plate 102 - 1 , and the cover plate ear plate 102 - 1 is used to connect with the installation position plane 200 ;

[0063] The cover body 10 can cover the outer shell 101, the cover plate 102 and the part of the connection box 103, and the assembly gap, and the covering area is relatively large, and the waterproof performance is relatively good in multiple directions;

[0064] Another embodiment:

[0065] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown; when implemented, the cover body 10 includes: a main body 10-1, having the first opening 13 and the second opening 14; a boss 10-2, connected to the main body 10-1, arranged in the stepped concave space 11, and arranged on one side of the first opening 13; and a sealing rib 10-3, connected to the main body 10-1, spaced from the first opening 13, having the stepped concave space 11 together with the main body 10-1, and having the sealing surface 12 on the sealing rib 10-3;

[0066] The main body 10-1 includes: a first part 10-11; and a second part 10-12; the height dimension of the first part 10-11 is greater than the height dimension of the second part 10-12, and the first part 10-11 is flush with one end surface of the second part 10-12, and the sealing rib 10-3 is connected to the end surface; the height dimension is controlled so that a part of the first part 10-11 can protrude outside the second part 10-12, such as Figure 4 In the embodiment, the first part 10-11 can form a barrier to prevent water from entering through the first opening 13, and the waterproof property is relatively good;

[0067] The first part 10-11 includes: a first end face sealing plate 10-111; and a first side sealing plate 10-112, one end of which is connected to the first end face sealing plate 10-111, and a first space 10-113 is formed between the first end face sealing plate 10-111, and the first side sealing plate 10-112 has the second opening 14;

[0068] The second part 10-12 includes: a second end face sealing plate 10-121, connected to the first side sealing plate 10-112, the second end face sealing plate 10-121 having the first opening 13; and a second side sealing plate 10-122, connected to the second end face sealing plate 10-121 and connected to the first side sealing plate 10-112, a second space 10-123 is formed between the second side sealing plate 10-122 and the second end face sealing plate 10-121;

[0069] The second space 10-123 is connected to the first space 10-113;

[0070] The first space 10-113 is a cylindrical space, and the second space 10-123 is a square space, with regular shapes, which is easy to manufacture and form, and is conducive to accommodating the housing 101 and a part of the connection box 103, forming a wrapping effect;

[0071] The cover body 10 is integrally injection-molded by an elastic material, and the elastic material is preferably soft rubber. The main body 10-1, the boss 10-2 and the sealing rib 10-3 are integrally injection-molded. The elastic and soft structure is convenient to assemble when wrapping, and the sealing effect formed is relatively good.

[0072] A first end face sealing plate 10-111, a first side sealing plate 10-112, a second end face sealing plate 10-121 and a second side sealing plate 10-122 are provided. Figure 4 In the direction of the arrow, a multi-directional barrier waterproof is formed, the coverage area is relatively large, the waterproof performance is relatively good, and the sealing surface 12 is in contact with the installation position plane 200, forming a seal, and the waterproof performance is relatively good;

[0073] Another embodiment:

[0074] like Figure 1 , Figure 6 As shown; during implementation, the outer wall of the first side sealing plate 10-112 has two first avoidance grooves 10-112-1, and the first avoidance grooves 10-112-1 are arc-shaped grooves. When the first avoidance grooves 10-112-1 are provided, when the screws are inserted into the cover plate ear plate 102-1 to connect the cover plate ear plate 102-1 and the installation position plane 200, the first side sealing plate 10-112 will not collide with or block the screws, and the installation is more convenient, and the screws will not scratch the first side sealing plate 10-112;

[0075] Another embodiment:

[0076] like Figure 1 , Figure 2 , Figure 5As shown; in implementation, the boss 10-2 is connected to the second part 10-12, and is arranged in the second space 10-123, and the height dimension of the boss 10-2 is smaller than the height dimension of the second side sealing plate 10-122; the boss 10-2 is provided to support and fix the connection box 103, and can also form a barrier to prevent water from entering;

[0077] Another embodiment:

[0078] like Figure 1 , Figure 2 , Figure 5 , Figure 7 As shown; during implementation, the middle position of the sealing rib 10-3 has a third space 10-31, and the third space 10-31, the first space 10-113 and the second space 10-123 together form the stepped concave space 11;

[0079] The area size of the third space 10-31 after plane projection from top to bottom is smaller than the area size of the first space 10-113 and the second space 10-123 after plane projection from top to bottom. The area size is controlled so that the sealing rib 10-3 is an inner turning edge toward the first space 10-113 or the second space 10-123, which can form a barrier, hug the edge close to the cover plate 102, and wrap and hug the shell 101 and the cover plate 102 together with the main body 10-1, so as to cover the assembly gap between the shell 101 and the cover plate 102, with a relatively large coverage area, multi-directional waterproofing, and relatively good waterproofing;

[0080] Another embodiment:

[0081] like Figure 1 , Figure 2 , Figure 5 , Figure 7 As shown; during implementation, the sealing rib 10-3 has a second avoidance groove 10-32, and the second avoidance groove 10-32 is connected to the third space 10-31; the second avoidance groove 10-32 is an arc-shaped groove, and the second avoidance groove 10-32 is provided, so that there will be no interference and collision with the protrusion on the cover plate 102, and the assembly is more convenient;

[0082] Another embodiment:

[0083] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7As shown; when implemented, the wall thickness of the main body 10-1 or the sealing rib 10-3 is 1 mm; the control of the wall thickness makes the structural strength of the cover body 10 relatively high, more durable, and can reduce the vibration and noise generated by the operation of the motor;

[0084] Another embodiment:

[0085] like Figure 1 , Figure 2 , Figure 3 , Figure 6 As shown; in implementation, the first opening 13 is a rectangular through slot with a regular shape, which is easy to manufacture and facilitates the connection box 103 to pass through, making assembly more convenient;

[0086] Another embodiment:

[0087] like Figure 1 , Figure 2 , Figure 3 As shown; in implementation, the second opening 14 has a rectangular shape, and its area size is smaller than the cross-sectional area size of the cover plate ear plate 102-1. The area size is controlled so that when the cover plate ear plate 102-1 passes through the second opening 14, the second opening 14 hugs the cover plate ear plate 102-1 tightly, and the positioning effect is relatively good, and the waterproof performance is relatively good;

[0088] About motors with waterproof covers:

[0089] See Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown; the motor using the waterproof cover includes: a housing 101, a cover plate 102, a connection box 103, pole claws, a rotor, a stator, a nameplate, a bearing and other structures. The nameplate is connected to the outer wall of the housing 101, and a part of the rotor, the pole claws, the bearing and the stator are arranged in the housing 101. It is a common structure in the prior art and is not the invention point of the utility model. It is only for better description of the utility model and to facilitate 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 it without paying creative labor or excessive experiments;

[0090] The working principle is as follows: the stepped concave space 11 on the cover body 10 wraps the housing 101 on the motor, hugs the cover plate 102 on the motor near the edge, and the sealing surface 12 fits with the installation position plane 200 to cover the assembly gap, with a relatively large coverage area, multi-directional waterproofing, and relatively good waterproofing, protecting the connection box 103, pole claws, rotors, stators, nameplates, bearings and other structures from contact with water;

[0091] 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;

[0092] 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;

[0093] 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 cover body (10), wherein a middle portion of the cover body (10) has a stepped concave space (11), one side of the stepped concave space (11) is open and passes through one end of the cover body (10); The cover body (10) has a sealing surface (12) on one end and a first opening (13) on the other end, wherein the first opening (13) passes through the cover body (10) and is connected to the stepped concave space (11); The side wall of the cover body (10) also has two second openings (14); The cover body (10) wraps around the outer shell (101) on the motor through the stepped concave space (11), and embraces the cover plate (102) on the motor near the edge; After the cover plate (102) is connected to the installation position plane (200), the sealing surface (12) is in contact with the installation position plane (200); The first opening (13) is penetrated by a connection box (103) on the motor; The second opening (14) is penetrated by a cover plate ear plate (102-1) on the cover plate (102), the second opening (14) tightly embraces the cover plate ear plate (102-1), and the cover plate ear plate (102-1) is used to connect with the installation position plane (200); The cover body (10) is integrally injection-molded from an elastic material and has elasticity.

2. A waterproof cover according to claim 1, characterized in that: The cover body (10) comprises: a main body (10-1) having the first opening (13) and the second opening (14); A boss (10-2) connected to the main body (10-1), arranged in the stepped concave space (11), and arranged on one side of the first opening (13); and a sealing rib (10-3) connected to the main body (10-1), spaced apart from the first opening (13), and having the stepped concave space (11) together with the main body (10-1); the sealing rib (10-3) having the sealing surface (12).

3. A waterproof cover according to claim 2, characterized in that: The main body (10-1) includes: a first part (10-11); and a second part (10-12); The height dimension of the first part (10-11) is greater than the height dimension of the second part (10-12), and one end surface of the first part (10-11) is flush with that of the second part (10-12), and the sealing rib (10-3) is connected to the end surface.

4. A waterproof cover according to claim 3, characterized in that: The first part (10-11) comprises: a first end face sealing plate (10-111); and a first side sealing plate (10-112), one end of which is connected to the first end face sealing plate (10-111) and forms a first space (10-113) between the first end face sealing plate (10-111); the first side sealing plate (10-112) has the second opening (14); The second part (10-12) comprises: a second end face sealing plate (10-121) connected to the first side sealing plate (10-112), the second end face sealing plate (10-121) having the first opening (13); and a second side sealing plate (10-122) connected to the second end face sealing plate (10-121) and connected to the first side sealing plate (10-112), a second space (10-123) being formed between the second side sealing plate (10-122) and the second end face sealing plate (10-121); The second space (10-123) is in communication with the first space (10-113).

5. A waterproof cover according to claim 4, characterized in that: The first space (10-113) is a cylindrical space.

6. A waterproof cover according to claim 5, characterized in that: The second space (10-123) is a square space.

7. A waterproof cover according to claim 4 or 6, characterized in that: Two first avoidance grooves (10-112-1) are provided on the outer wall of the first side sealing plate (10-112).

8. A waterproof cover according to claim 7, characterized in that: The boss (10-2) is connected to the second part (10-12), and is disposed in the second space (10-123), and the height dimension of the boss (10-2) is smaller than the height dimension of the second side sealing plate (10-122).

9. A waterproof cover according to claim 6, characterized in that: A third space (10-31) is provided in the middle of the sealing rib (10-3), and the third space (10-31), the first space (10-113) and the second space (10-123) together form the stepped concave space (11); The area size of the third space (10-31) after plane projection from top to bottom is smaller than the area size of the first space (10-113) and the second space (10-123) after plane projection from top to bottom.

10. A waterproof cover according to claim 9, characterized in that: The sealing rib (10-3) is provided with a second avoidance groove (10-32), and the second avoidance groove (10-32) is connected to the third space (10-31).

11. A waterproof cover according to claim 2 or 8 or 10, characterized in that: The wall thickness of the main body (10-1) or the sealing rib (10-3) is 1 mm.

12. A waterproof cover according to claim 2, 8 or 10, characterized in that: The first opening (13) is a rectangular through slot.

13. A waterproof cover according to claim 2 or 8 or 10, characterized in that: The second opening (14) has a rectangular shape, and its area is smaller than the cross-sectional area of ​​the cover plate ear plate (102-1).

14. A motor using a waterproof cover, comprising: A housing (101), a cover plate (102), and a connection box (103); the housing (101) is connected to the cover plate (102) and the connection box (103); characterized in that it also includes: a waterproof cover as described in any one of claims 1 to 13; The waterproof cover wraps the outer shell (101) on the motor from the stepped concave space (11) on the cover body (10), and embraces the cover plate (102) on the motor near the edge; The sealing surface (12) is in contact with the installation position plane (200); Passing through the first opening (13) through the connection box (103) on the motor; The cover plate ear plate (102-1) on the cover plate (102) passes through the second opening (14), and the second opening (14) tightly embraces the cover plate ear plate (102-1), and the cover plate ear plate (102-1) is used to connect with the installation position plane (200).

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