Stepping motor and air conditioning equipment

Abstract

The embodiment of the utility model provides a stepping motor and air conditioning equipment, the stepping motor comprises a motor body, a fixed support and a damping member, the fixed support is arranged on the periphery of the motor body, the fixed support is provided with a first mounting hole, the damping member is sleeved on the fixed support and is provided with a second mounting hole corresponding to the first mounting hole in position, and the damping member is arranged on the motor body. And a connecting piece is mounted between the first mounting hole and the second mounting hole. According to the embodiment, the fixing support is sleeved with the damping piece, the fixing support is isolated from the injection molding piece through the damping piece, and therefore the damping effect is achieved, and the situation that large resonance friction noise is generated when the stepping motor operates at high frequency is avoided; and moreover, the connecting piece is arranged, and the damping piece, the fixing support and the injection molding piece are fixed through the connecting piece, so that the damping piece achieves a better damping effect.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning, in particular to a stepping motor and air conditioning equipment. Background Art

[0002] Existing air conditioning equipment is usually installed indoors, such as a wall-mounted indoor unit (hereinafter referred to as the indoor unit). Existing indoor units generally adjust the air outlet direction of the indoor unit by adjusting the rotation direction of an air guide plate, and the rotation direction of the air guide plate is controlled by a stepper motor, that is, the stepper motor rotates to drive the air guide plate to rotate up and down.

[0003] In the internal structure of the indoor unit, the stepper motor is fixed on the injection molded part, but the material of the injection molded part is relatively hard, and the shell of the stepper motor is generally made of metal. When the stepper motor rotates to drive the air guide plate to rotate up and down, the body of the stepper motor and the injection molded part will collide and rub, thereby generating noise, which can easily affect the user's comfort. Utility Model Content

[0004] The utility model provides a stepping motor and air conditioning equipment, aiming to solve the problem of noise generated between the stepping motor and the injection molded parts of the existing air conditioning equipment.

[0005] An embodiment of the utility model provides a stepper motor, which is applied to air-conditioning equipment. The air-conditioning equipment includes an injection molded part, and the stepper motor is arranged on the injection molded part. The stepper motor includes a motor body, a fixed bracket and a shock-absorbing part. The fixed bracket is arranged on the outer periphery of the motor body, and the fixed bracket is provided with a first mounting hole. The shock-absorbing part is sleeved on the fixed bracket and is provided with a second mounting hole corresponding to the position of the first mounting hole, and a connecting part is installed between the first mounting hole and the second mounting hole.

[0006] Specifically, the injection molded part is provided with a first mounting groove, and the motor body is arranged in the first mounting groove.

[0007] Specifically, the shock absorbing component is provided with a connecting groove with an opening on one side, and the fixing bracket is inserted into the connecting groove through the opening.

[0008] Specifically, it also includes a gasket, on which a third mounting hole is arranged, and the connecting member is also connected to the third mounting hole, and the gasket is mounted on the injection molded part.

[0009] Specifically, the gasket includes a fixing surface and fixing claws, the fixing claws are arranged at both ends of the fixing surface, the third mounting hole is arranged on the fixing surface, the fixing surface is attached to one side of the shock absorber, and the fixing claws are fixed on the injection molded part.

[0010] Specifically, the injection molded part is provided with a fixing hole, and the fixing claw is fixed in the fixing hole.

[0011] Specifically, one or more of the four corners of the fixing surface are provided with an avoidance portion.

[0012] Specifically, the gasket is made of steel plate.

[0013] Specifically, the shock absorbing component is made of rubber.

[0014] The embodiment of the utility model further provides an air conditioning device, comprising an injection molded part and the stepping motor as described above arranged on the injection molded part.

[0015] The utility model provides a stepper motor and air conditioning equipment in an embodiment. The stepper motor includes a motor body, a fixing bracket and a shock absorber. The fixing bracket is arranged on the outer periphery of the motor body, the fixing bracket is provided with a first mounting hole, the shock absorber is sleeved on the fixing bracket and provided with a second mounting hole corresponding to the position of the first mounting hole, and a connecting member is installed between the first mounting hole and the second mounting hole. In this embodiment, the shock absorber is sleeved on the fixing bracket, and the fixing bracket is isolated from the injection molded part by the shock absorber, so as to play a shock absorbing role, thereby avoiding the stepper motor from generating a large resonance friction noise when running at a high frequency; and by providing a connecting member, and fixing the shock absorber, the fixing bracket and the injection molded part by the connecting member, the shock absorber can achieve a better shock absorbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a stepper motor provided in an embodiment of the utility model;

[0018] Figure 2 An exploded view of a stepper motor provided in the first embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of an injection molded part;

[0020] Figure 4 is a schematic diagram of the structure of the shock absorbing component;

[0021] Figure 5 is a cross-sectional view of a shock absorbing member;

[0022] Figure 6 is another structural schematic diagram of the shock absorbing member;

[0023] Figure 7 A schematic diagram of the structure of a stepping motor provided in the second embodiment of the utility model;

[0024] Figure 8 An exploded view of a stepper motor provided in the second embodiment of the utility model;

[0025] Fig. 9 Another structural schematic diagram of a stepping motor provided in the second embodiment of the utility model;

[0026] Fig.10 An exploded diagram of an air conditioning device provided by an embodiment of the utility model;

[0027] Fig.11 is a schematic diagram of the structure of the gasket;

[0028] Fig.12 Another schematic diagram of the structure of the gasket.

[0029] Description of the symbols in the figure:

[0030] 10. Injection molded parts;

[0031] 11. First mounting slot;

[0032] 12. Fixing holes;

[0033] 13. Injection hole;

[0034] 14. Second mounting slot;

[0035] 20. Stepper motor;

[0036] 21. Motor body;

[0037] 22. fixing bracket; 221. first mounting hole;

[0038] 23. shock absorbing member; 231. second mounting hole; 232. opening; 233. connecting groove; 234. recessed portion;

[0039] 30. Connectors;

[0040] 40. Gasket;

[0041] 41. The third mounting hole;

[0042] 42. fixed surface; 421. avoidance portion;

[0043] 43. Fixed claw. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0046] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0047] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0048] See also Figure 1-3 The utility model provides a stepper motor for use in air conditioning equipment. The air conditioning equipment includes an injection molded part 10. A stepper motor 20 is arranged on the injection molded part 10. The stepper motor 20 includes a motor body 21, a fixing bracket 22 and a shock absorbing member 23. The fixing bracket 22 is arranged on the outer periphery of the motor body 21. The fixing bracket 22 is provided with a first mounting hole 221. The shock absorbing member 23 is sleeved on the fixing bracket 22 and is provided with a second mounting hole 231 corresponding to the position of the first mounting hole 221. A connecting member 30 (reference Fig.10 ).

[0049] In this embodiment, the stepper motor 20 is used to control the rotation direction of the air guide plate, so as to adjust the air outlet direction of the air conditioning equipment. In a specific embodiment, the stepper motor 20 includes a motor body 21 and a fixed bracket 22, the fixed bracket 22 is arranged on the periphery of the motor body 21, one or more fixed brackets 22 are arranged, and two are preferably arranged, and are symmetrically arranged on the periphery of the motor body 21, and the motor body 21 and the fixed bracket 22 are both installed on the injection molded part 10. Since the material of the injection molded part 10 is relatively hard, and the outer shell of the motor body 21 is generally made of metal, when the stepper motor 20 is working, the motor body 21 generates vibrations and transmits them to the fixed bracket 22, so that the fixed bracket 22 vibrates up and down. During the vibration process, the fixed bracket 22 and the injection molded part 10 contact and rub to generate noise. In this embodiment, a shock absorber 23 is arranged on the fixed bracket 22, and the fixed bracket 22 is isolated from the injection molded part 10 by the shock absorber 23, so as to play a role of shock absorption, and avoid the stepper motor 20 from generating large resonance friction noise when running at high frequency.

[0050] In order to prevent the shock absorber 23 from falling off during vibration, the shock absorber 23 needs to be stably installed on the fixed bracket 22. A first mounting hole 221 can be set on the fixed bracket 22, a second mounting hole 231 is set at a position corresponding to the first mounting hole on the shock absorber 23, and an injection hole 13 is set at a position corresponding to the second mounting hole 231 on the injection molded part 10. The shock absorber 23 is sleeved on the fixed bracket 22 to form a whole, and the connecting member 30 connects the whole and the injection molded part 10, so that the three are fixedly connected, so that the shock absorber 23 can achieve a better shock absorbing effect.

[0051] Specifically, Figure 3 As shown, the injection molded part 10 is provided with a first mounting groove 11 , and the motor body 21 is disposed in the first mounting groove 11 .

[0052] In this embodiment, the first mounting groove 11 is used to mount the motor body 21, and the injection molded part 10 is provided with a second mounting groove 14 at a position corresponding to the fixing bracket 22, which is used to mount the fixing bracket 22, and the second mounting groove 14 is connected to the first mounting groove 11. The first mounting groove 11 is set as a circular groove according to the shape of the motor body 21, and the second mounting groove 14 is set as a square groove, so that there is enough space to accommodate the fixing bracket 22 and the shock absorber 23. In a specific embodiment, a new shock absorber (which may be called a second shock absorber) may be set at the bottom of the first mounting groove 11 and / or at the side where the motor body 21 contacts the first mounting groove 11. The new shock absorber is a sheet structure to isolate the injection molded part 10 from the motor body 21, and further achieve the effect of reducing noise on the basis of the shock absorber 23 (which may be called a first shock absorber) sleeved on the original fixing bracket 22.

[0053] Specifically, Figure 4-7As shown, the shock absorbing member 23 is provided with a connecting groove 233 with an opening 232 on one side, and the fixing bracket 22 is inserted into the connecting groove 233 through the opening 232 .

[0054] In this embodiment, since the fixed bracket 22 is a planar structure, the middle part of the shock absorber 23 is set as a hollow structure, that is, an opening 232 is set on the side of the shock absorber 23 facing the fixed bracket 22, and a connection groove 233 of a predetermined length is set from the opening 232 along the length direction of the shock absorber 23 to form a hollow structure, and the outer dimensions of the shock absorber 23 are set to match the fixed bracket 22, so that the shock absorber 23 can be sleeved on the fixed bracket 22 through the opening 232. Among them, the length and width of the shock absorber 23 are greater than the fixed bracket 22, and the width of the connection groove 233 is greater than the thickness of the fixed bracket 22, so as to ensure that the shock absorber 23 can completely wrap the fixed bracket 22. It should be noted that the size of the shock absorber 23 should not be too large than the fixed bracket 22 to prevent the shock absorber 23 from being easily loosened during installation.

[0055] In a specific embodiment, the outer shell of the motor body 21 is a circular structure. When the shock absorber 23 is mounted on the fixed bracket 22, the side with the opening 232 contacts the outer periphery of the motor body 21. In order to stably mount the shock absorber 23 on the fixed bracket 22, a recessed portion 234 is provided in the area with the opening 232 to fit the outer periphery of the motor body 21, thereby increasing the contact area between the shock absorber 23 and the motor body 21.

[0056] Specifically, Figure 7-10 As shown, it also includes a gasket 40 , on which a third mounting hole 41 is provided, and the connecting member 30 is also connected to the third mounting hole 41 , and the gasket 40 is installed on the injection molded part 10 .

[0057] In this embodiment, in order to prevent other factors (such as the material of the shock absorber 23) from affecting the fixation of the connector 30, a force point needs to be provided to the connector 30, that is, according to the position of the shock absorber 23, a gasket 40 is set on the injection molded part 10, and by setting a third mounting hole 41 on the gasket 40, the connector 30 is connected to the third mounting hole 41, the integral hole (that is, the hole formed by the second mounting hole 231 and the first mounting hole 221 after the shock absorber 23 is sleeved on the fixing bracket 22) and the injection hole 13, so as to fix the gasket 40, the shock absorber 23, the fixing bracket 22 and the injection molded part 10. The installation process is: first insert the rubber shock absorber 23 into the fixing bracket 22, install the stepper motor 20 on the injection molded part 10, then assemble the gasket 40, and finally fix it through the connector 30.

[0058] Specifically, Figure 11-12As shown, the gasket 40 includes a fixing surface 42 and a fixing claw 43 , the fixing claw 43 is arranged at both ends of the fixing surface 42 , the third mounting hole 41 is arranged on the fixing surface 42 , the fixing surface 42 is attached to one side of the shock absorber 23 , and the fixing claw 43 is fixed on the injection molded part 10 .

[0059] In this embodiment, the fixing surface 42 is a planar structure, and a third mounting hole 41 is arranged at a position of the fixing surface 42 corresponding to the first mounting hole 221 of the fixing bracket 22, and the fixing claw 43 is arranged as a claw structure, and the fixing claw 43 is arranged at both ends of the fixing surface 42 and is bent toward one side of the injection molded part 10, and then the fixing claw 43 is installed on the injection molded part 10, and then fixed by the connecting member 30, at this time, the fixing surface 42 fits one side of the shock absorber 23, and the fixing claw 43 is located on both sides of the shock absorber 23 and limits the shock absorber 23. In this embodiment, the bending depth of the fixing claw 43 can be 3mm, and the limiting effect is better. In other embodiments, the bending depth is determined according to the size of the fixing bracket 22.

[0060] In addition, the length and width of the fixing surface 42 are determined according to the size of the fixing bracket 22, so that the gasket 40 can cover the shock absorbing member 23 after being assembled and fix it without loosening.

[0061] Specifically, Figure 3 and Figure 11-12 As shown, the injection molded part 10 is provided with a fixing hole 12 , and the fixing claw 43 is fixed in the fixing hole 12 .

[0062] In this embodiment, the fixing holes 12 are arranged on both sides of the second mounting groove 14, and the fixing claws 43 are fixed in the fixing holes 12. At this time, the fixing surface 42 is located above the shock absorber 23 and presses the shock absorber 23. Then the connecting member 30 is connected through the third mounting hole 41, the second mounting hole 231, the first mounting hole 221 and the injection hole 13 in sequence, so that the gasket 40, the shock absorber 23, the fixing bracket 22 and the injection molded part 10 are fixedly connected to achieve a better shock absorption effect.

[0063] Specifically, Fig.11 As shown, one or more of the four corners of the fixing surface 42 is provided with an escape portion 421 .

[0064] In this embodiment, the avoidance portion 421 is an arc structure, which makes the corners of the gasket 40 smoother and more beautiful, and more uniform when subjected to force, which facilitates the stable connection of the connector 30. In addition, by setting the avoidance portion 421, interference between the gasket 40 and surrounding parts can be effectively avoided.

[0065] Specifically, the gasket 40 is made of steel plate.

[0066] In this embodiment, the gasket 40 plays the role of pressing down and fixing the shock absorber 23. The gasket 40 fixes the shock absorber 23 through the connecting member 30 (such as a screw). When fixing, the screw hits the gasket 40 and needs to be subjected to force to achieve fixation. Therefore, it is necessary to ensure that the hardness of the gasket 40 is high to avoid sagging and deformation after the screw is fixed. In this embodiment, stainless steel plate material is preferably used, such as a stainless steel plate of type 06Cr19Ni10 and size 1.0X1219XC.

[0067] Specifically, the shock absorbing member 23 is made of rubber.

[0068] In this embodiment, the shock absorber 23 plays a role in buffering and shock absorption, and a relatively soft material should be selected. In order to further improve the user's comfort, the material of the shock absorber 23 cannot have a noticeable odor to avoid causing the indoor unit to produce odor. Therefore, the material of the shock absorber 23 is preferably set to a rubber material, such as EPDM rubber, with a hardness of Shore A65±5, so the shock absorber 23 can be a rubber sleeve. In other specific embodiments, a plastic material can also be used to ensure that there is no obvious vibration or abnormal sound when the indoor unit is running.

[0069] In a specific embodiment, the shock absorber 23 can also be set as a buffer portion, which is arranged at the bottom of the second installation groove 14. The buffer portion separates the fixed bracket 22 from the injection molded part 10, thereby achieving a shock absorption effect; the shock absorber 23 can also be set as an elastic member, and an elastic member, such as a spring, is arranged on the side of the fixed bracket 22 facing the injection molded part 10. When the fixed bracket 22 vibrates, the spring can offset most of the vibration to reduce the contact friction between the fixed bracket 22 and the injection molded part 10, thereby achieving an effect of reducing noise; a noise detection device can also be arranged inside the indoor unit, and the noise is divided into first-level noise, second-level noise and third-level noise according to the decibel size, and the corresponding shock absorber is installed according to the detected noise level, such as the shock absorber 23 corresponding to the first-level noise is a rubber sleeve, the shock absorber 23 corresponding to the second-level noise is a buffer portion, and the shock absorber 23 corresponding to the third-level noise is an elastic member.

[0070] like Fig.10 As shown, an embodiment of the utility model further provides an air conditioning device, including an injection molded part 10 and a stepping motor 20 as described above and arranged on the injection molded part 10 .

[0071] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A stepper motor is applied to an air conditioning device, wherein the air conditioning device comprises an injection molded part, and the stepper motor is arranged on the injection molded part, characterized in that: The stepper motor includes a motor body, a fixing bracket and a shock absorber. The fixing bracket is arranged on the outer periphery of the motor body. The fixing bracket is provided with a first mounting hole. The shock absorber is sleeved on the fixing bracket and is provided with a second mounting hole corresponding to the position of the first mounting hole. A connecting member is installed between the first mounting hole and the second mounting hole.

2. The stepper motor according to claim 1, characterized in that: The injection molded part is provided with a first mounting groove, and the motor body is arranged in the first mounting groove.

3. The stepper motor according to claim 1, characterized in that: The shock absorbing member is provided with a connecting groove with an opening on one side, and the fixing bracket is inserted into the connecting groove through the opening.

4. The stepper motor according to claim 1, characterized in that: It also includes a gasket, on which a third mounting hole is arranged, and the connecting member is further connected to the third mounting hole, and the gasket is mounted on the injection molded part.

5. The stepper motor according to claim 4, characterized in that: The gasket includes a fixing surface and fixing claws, the fixing claws are arranged at both ends of the fixing surface, the third mounting hole is arranged on the fixing surface, the fixing surface is attached to one side of the shock absorbing component, and the fixing claws are fixed on the injection molded part.

6. The stepper motor according to claim 5, characterized in that: The injection molded part is provided with a fixing hole, and the fixing claw is fixed in the fixing hole.

7. The stepper motor according to claim 5, characterized in that: One or more of the four corners of the fixing surface is provided with an escape portion.

8. The stepper motor according to claim 4, characterized in that: The gasket is made of steel plate.

9. The stepper motor according to claim 1, characterized in that: The shock absorbing component is made of rubber.

10. An air conditioning device, characterized in that: The invention comprises an injection molded part and a stepper motor as claimed in any one of claims 1 to 9 arranged on the injection molded part.

Images