Transmission module and fan

Abstract

The transmission module comprises a transmission body, a transmission shaft and a sealing assembly, the transmission body comprises a transmission shell and a bearing, the transmission shell is provided with a containing space, a first connecting hole and a second connecting hole, and the first connecting hole and the second connecting hole are located on the two opposite sides of the transmission shell. The first connecting hole and the second connecting hole communicate with the containing space, and the bearing is located in the containing space. The transmission shaft is connected to the bearing and penetrates through the bearing, the first connecting hole and the second connecting hole; the sealing assembly comprises a first sealing ring and a second sealing ring, the first sealing ring is arranged on the periphery of the transmission shaft in a sleeving mode and connected between the transmission shell and the transmission shaft in an abutting mode, and the second sealing ring is arranged on the periphery of the transmission shaft in a sleeving mode and connected between the transmission shell and the transmission shaft in an abutting mode. Impurities such as dust and water can be prevented from entering the transmission module, and the service life of the transmission module is prolonged.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and in particular to a transmission module and a fan. Background Art

[0002] The transmission module in the fan is a key component connecting the motor and the blades. Its main function is to transmit the rotational motion of the motor to the blades so that the blades can rotate efficiently, thereby generating airflow.

[0003] When the fan is running, it will generate strong air flow, which will suck the surrounding dust, particles, etc. into the fan. Users need to clean the fan.

[0004] However, when cleaning the fan, dust or water may easily enter the transmission module, thereby affecting the performance of the transmission module and shortening the service life of the transmission module. Utility Model Content

[0005] The present application provides a transmission module and a fan to improve at least one of the above problems.

[0006] The present application provides a transmission module, which is applied to a fan and includes:

[0007] The transmission body includes a transmission housing and a bearing. The transmission housing is provided with an accommodating space, a first connecting hole and a second connecting hole. The first connecting hole and the second connecting hole are located on opposite sides of the transmission housing. Both the first connecting hole and the second connecting hole are connected to the accommodating space. The bearing is located in the accommodating space.

[0008] a transmission shaft connected to the bearing and passing through the bearing, the first connection hole, and the second connection hole; and

[0009] The sealing assembly includes a first sealing ring and a second sealing ring. The first sealing ring is sleeved on the outer periphery of the transmission shaft and abuts between the transmission housing and the transmission shaft to seal the first connecting hole. The second sealing ring is sleeved on the outer periphery of the transmission shaft and abuts between the transmission housing and the transmission shaft to seal the second connecting hole.

[0010] In some embodiments, the transmission housing includes a first sub-shell and a second sub-shell, the second sub-shell is detachably connected to the first sub-shell, the first sub-shell and the second sub-shell together form a receiving space, the first connection hole is located in the first sub-shell, and the second connection hole is located in the second sub-shell.

[0011] In some embodiments, the first sub-shell is provided with a first snap-fit ​​structure, and the second sub-shell is provided with a second snap-fit ​​structure, and the second snap-fit ​​structure can be snap-fitted and fixed with the first snap-fit ​​structure.

[0012] In some embodiments, the sealing assembly further includes a third sealing ring, which is disposed around the circumference of the transmission shaft. The third sealing ring is located at an end of the first sub-shell and abuts between the first sub-shell and the second sub-shell.

[0013] In some embodiments, the second sub-shell is provided with a positioning groove, and the third sealing ring is embedded in the positioning groove.

[0014] In some embodiments, the first sealing ring includes a first connecting portion and a first sealing portion connected to each other, the first connecting portion being connected to the first sub-housing, the first sealing portion surrounding the outer circumference of the transmission shaft and abutting against the transmission shaft, and the inner diameter of the first sealing portion gradually decreases from the accommodating space toward a direction away from the second connecting hole;

[0015] The second sealing ring includes a second connecting portion and a second sealing portion connected to each other. The second connecting portion is connected to the second sub-shell. The second sealing portion surrounds the outer circumference of the transmission shaft and abuts against the transmission shaft. The inner diameter of the second sealing portion gradually decreases from the accommodating space toward the direction away from the first connecting hole.

[0016] In some embodiments, the first connecting portion can be adaptively mounted in the first connecting hole on the first sub-shell;

[0017] The second connecting portion can be adaptively mounted on the second connecting hole on the second sub-shell.

[0018] In some embodiments, the first sealing portion includes a first abutting section and a first inclined section, the first inclined section is connected between the first connecting portion and the first abutting section, the first inclined section is inclined, the first abutting section abuts against the transmission shaft and extends radially along the transmission shaft;

[0019] The second sealing portion includes a second abutting section and a second inclined section. The second inclined section is connected between the second connecting portion and the second abutting section. The second inclined section is inclined. The second abutting section abuts against the transmission shaft and extends radially along the transmission shaft.

[0020] In some embodiments, the first snap-fit ​​structure is a snap-fit ​​protrusion, and the second snap-fit ​​structure is a snap-fit ​​groove, and the snap-fit ​​can be embedded in the snap-fit ​​groove.

[0021] In a second aspect, the present application provides a fan, comprising:

[0022] The machine head includes a motor, and the motor is provided with an output shaft;

[0023] a fan head, the fan head being detachably connected to the machine head, the fan head comprising fan blades; and

[0024] According to any of the above transmission modules, the transmission shaft is connected to the output shaft and the fan blades.

[0025] In the transmission module provided by the embodiment of the present invention, a first sealing ring is introduced which is sleeved on the outer periphery of the transmission shaft and abuts between the transmission housing and the transmission shaft, and a second sealing ring is sleeved on the outer periphery of the transmission shaft and abuts between the transmission housing and the transmission shaft. The first sealing ring and the second sealing ring are respectively blocked by the first connecting hole and the second connecting hole to form a double seal, which effectively prevents impurities such as dust and water from entering the interior of the transmission module, reduces the damage of impurities such as dust and water to the internal bearings of the transmission module, and thereby extends the service life of the transmission module. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0029] Figure 1 A schematic cross-sectional view of a fan provided in accordance with an embodiment of the present invention.

[0030] Figure 2 This is a structural diagram of the transmission module provided in an embodiment of the present utility model.

[0031] Figure 3 for Figure 2 Schematic cross-section of .

[0032] Figure 4 for Figure 2 Schematic diagram of the structure of the first subshell in .

[0033] Figure 5 for Figure 2 Schematic diagram of the structure of the second subshell in .

[0034] Figure 6 for Figure 2 Schematic diagram of the structure of the first sealing ring and the second sealing ring.

[0035] Description of reference numerals:

[0036] Fan 1, transmission module 10, transmission body 100, transmission housing 110, first sub-shell 111, first snap-fit ​​structure 1111, second sub-shell 112, second snap-fit ​​structure 1121, positioning groove 1122, bearing 120, accommodating space 130, first connecting hole 140, second connecting hole 150, transmission shaft 200, sealing assembly 300, first sealing ring 310, first connecting portion 311, first mounting groove 3111, first sealing portion 312, first abutting section 301, first inclined section 302, second sealing ring 320, second connecting portion 321, second mounting groove 3211, second sealing portion 322, second abutting section 303, second inclined section 304, third sealing ring 330, machine head 20, motor 21, output shaft 22, fan head 30, fan blades 31. DETAILED DESCRIPTION

[0037] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] The disclosure below provides many different embodiments or examples for implementing different configurations of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0039] For ease of description, spatially relative terms may be used herein to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," "above," "front," "back," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figures undergoes a positional flip or a change in posture or a change in motion, then these directional indications will also change accordingly. For example, an element described as "below" or "below" another element or feature will subsequently be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be oriented otherwise (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein will be interpreted accordingly.

[0040] See also Figures 1 to 6 The embodiment of the present invention provides a transmission module 10 applied to a fan 1 . The transmission module 10 includes a transmission body 100 , a transmission shaft 200 and a sealing assembly 300 .

[0041] Among them, the transmission body 100 includes a transmission housing 110 and a bearing 120. The transmission housing 110 is provided with an accommodating space 130, a first connecting hole 140 and a second connecting hole 150. The first connecting hole 140 and the second connecting hole 150 are located on opposite sides of the transmission housing 110. The first connecting hole 140 and the second connecting hole 150 are both connected to the accommodating space 130, and the bearing 120 is located in the accommodating space 130.

[0042] The transmission shaft 200 is connected to the bearing 120 and passes through the bearing 120 , the first connection hole 140 , and the second connection hole 150 .

[0043] The sealing assembly 300 includes a first sealing ring 310 and a second sealing ring 320. The first sealing ring 310 is sleeved on the outer periphery of the transmission shaft 200 and abuts between the transmission housing 110 and the transmission shaft 200 to block the first connecting hole 140. The second sealing ring 320 is sleeved on the outer periphery of the transmission shaft 200 and abuts between the transmission housing 110 and the transmission shaft 200 to block the second connecting hole 150.

[0044] In this way, by introducing a first sealing ring 310 that is sleeved on the outer periphery of the transmission shaft 200 and abuts between the transmission housing 110 and the transmission shaft 200, and a second sealing ring 320 that is sleeved on the outer periphery of the transmission shaft 200 and abuts between the transmission housing 110 and the transmission shaft 200, the first sealing ring 310 and the second sealing ring 320 are respectively blocked by the first connecting hole 140 and the second connecting hole 150 to form a double seal, which effectively prevents impurities such as dust and water from entering the interior of the transmission module 10, reduces the damage of impurities such as dust and water to the bearing 120 inside the transmission module 10, and thereby extends the service life of the transmission module 10.

[0045] In some embodiments, the transmission housing 110 includes a first sub-shell 111 and a second sub-shell 112, the second sub-shell 112 is detachably connected to the first sub-shell 111, and the first sub-shell 111 and the second sub-shell 112 together enclose a accommodating space 130, the first connection hole 140 is located in the first sub-shell 111, and the second connection hole 150 is located in the second sub-shell 112.

[0046] The first sub-shell 111 can be detachably connected to the second sub-shell 112 by means of a threaded connection, a snap connection, a magnetic connection, or a latch connection.

[0047] In this way, the detachable connection between the first sub-housing 111 and the second sub-housing 112 simplifies the assembly process and improves the assembly efficiency of the transmission module 10 .

[0048] For example, in some embodiments, the first sub-shell 111 is provided with a first snap-fit ​​structure 1111 , and the second sub-shell 112 is provided with a second snap-fit ​​structure 1121 . The second snap-fit ​​structure 1121 can be snap-fitted and fixed with the first snap-fit ​​structure 1111 .

[0049] The first buckle structure 1111 may be a buckling protrusion, and the second buckle structure 1121 may be a buckling slot, and the buckle can be embedded in the buckle slot.

[0050] Thus, the snap-fit ​​connection method can be connected with a simple press or rotation action without complicated tools or operation steps. Secondly, the snap-fit ​​connection is more secure and not easy to loosen, ensuring the stability and reliability of the transmission module 10.

[0051] Since the transmission housing 110 includes the first sub-shell 111 and the second sub-shell 112, there is a gap at the connection between the first sub-shell 111 and the second sub-shell 112. Therefore, in order to prevent impurities such as dust and water from flowing into the transmission module 10 from the connection between the first sub-shell 111 and the second sub-shell 112, the overall sealing effect of the transmission module 10 is improved.

[0052] In some embodiments, the sealing assembly 300 further includes a third sealing ring 330 , which is circumferentially disposed around the transmission shaft 200 . The third sealing ring 330 is located at an end of the first sub-shell 111 and abuts between the first sub-shell 111 and the second sub-shell 112 .

[0053] In this way, by introducing the third sealing ring 330 at the connection between the first sub-shell 111 and the second sub-shell 112, impurities such as dust and water can be prevented from flowing into the transmission module 10 from the connection between the first sub-shell 111 and the second sub-shell 112, thereby improving the overall sealing effect of the transmission module 10.

[0054] In some embodiments, the second sub-shell 112 defines a positioning groove 1122 , and the third sealing ring 330 is embedded in the positioning groove 1122 .

[0055] In this way, by embedding the third sealing ring 330 in the positioning groove 1122 , the third sealing ring 330 can be prevented from shifting and loosening as the transmission shaft 200 rotates, thereby improving the stability of the connection of the third sealing ring 330 .

[0056] In some embodiments, the first sealing ring 310 includes a first connecting portion 311 and a first sealing portion 312 connected to each other, the first connecting portion 311 is connected to the first sub-shell 111, the first sealing portion 312 surrounds the outer periphery of the transmission shaft 200 and abuts against the transmission shaft 200, and the inner diameter of the first sealing portion 312 gradually decreases from the accommodating space 130 in the direction away from the second connecting hole 150.

[0057] The second sealing ring 320 includes a second connecting portion 321 and a second sealing portion 322 connected to each other. The second connecting portion 321 is connected to the second sub-shell 112. The second sealing portion 322 surrounds the outer circumference of the transmission shaft 200 and abuts against the transmission shaft 200. The inner diameter of the second sealing portion 322 gradually decreases from the accommodating space 130 in the direction away from the first connecting hole 140.

[0058] Since the transmission module 10 needs to rotate, by gradually reducing the inner diameter of the first sealing portion 312 from the accommodating space 130 toward the direction away from the second connecting hole 150 and gradually reducing the inner diameter of the second sealing portion 322 from the accommodating space 130 toward the direction away from the first connecting hole 140, it is equivalent to setting a closing position on the sealing ring (the first sealing ring 310 and the second sealing ring 320), and the thickness of the closing position is relatively thin, which can reduce the friction of the rotation of the assembly while ensuring sealing.

[0059] In some embodiments, the first connection portion 311 can be adaptively installed in the first connection hole 140 on the first sub-shell 111 ; the second connection portion 321 can be adaptively installed in the second connection hole 150 on the second sub-shell 112 .

[0060] Specifically, the first connection portion 311 may have a first mounting groove 3111 , in which the first sub-shell 111 is partially embedded; the second connection portion 321 may have a second mounting groove 3211 , in which the second sub-shell 112 is partially embedded.

[0061] In this way, by setting a first mounting groove 3111 in the first sealing ring 310 and partially embedding the first sub-shell 111 in the first mounting groove 3111, the connection between the first sealing ring 310 and the first sub-shell 111 can be made more stable. Secondly, impurities such as dust and water can be prevented from flowing into the bearing 120 in the transmission module 10 from the connection between the first sealing ring 310 and the first sub-shell 111.

[0062] Similarly, a second mounting groove 3211 is provided in the second sealing ring 320, and the second sub-shell 112 is partially embedded in the second mounting groove 3211, so that the connection between the second sealing ring 320 and the second sub-shell 112 can be made more stable. Secondly, impurities such as dust and water can be prevented from flowing into the bearing 120 in the transmission module 10 from the connection between the second sealing ring 320 and the second sub-shell 112.

[0063] In some embodiments, the first sealing portion 312 includes a first abutting section 301 and a first inclined section 302. The first inclined section 302 is connected between the first connecting portion 311 and the first abutting section 301. The first inclined section 302 is inclined. The first abutting section 301 abuts against the transmission shaft 200 and extends radially along the transmission shaft 200.

[0064] The second sealing portion 322 includes a second abutting section 303 and a second inclined section 304 . The second inclined section 304 is connected between the second connecting portion 321 and the second abutting section 303 . The second inclined section 304 is inclined. The second abutting section 303 abuts against the transmission shaft 200 and extends radially along the transmission shaft 200 .

[0065] Since there are assembly deviations in the actual production process, the elastic arms of the sealing rings (first sealing ring 310 and second sealing ring 310) can be increased by setting inclined sections (including the first inclined section 302 and the second inclined section 304), and the elastic arms can enable the sealing rings (first sealing ring 310 and second sealing ring 320) to have an assembly sealing effect under certain deviation conditions.

[0066] Furthermore, the abutting section abuts against the transmission shaft 200 and extends radially along the transmission shaft 200 , which can further improve the sealing effect of the sealing ring (the first sealing ring 310 and the first sealing ring 310 ) in the radial direction.

[0067] The embodiment of the present application further provides a fan 1 , comprising a head 20 , a fan head 30 and the above-mentioned transmission module 10 .

[0068] The machine head 20 includes a motor 21 , which is provided with an output shaft 22 ; the fan head 30 is detachably connected to the machine head 20 , and the fan head 30 includes blades 31 ; the transmission shaft 200 is connected to the output shaft 22 and the blades 31 .

[0069] Since the transmission module introduces a first sealing ring that is sleeved on the outer circumference of the transmission shaft and abuts between the transmission housing and the transmission shaft, and a second sealing ring that is sleeved on the outer circumference of the transmission shaft and abuts between the transmission housing and the transmission shaft, the first sealing ring and the second sealing ring are respectively blocked by the first connecting hole and the second connecting hole to form a double seal, so that when cleaning the fan, dust, water and other impurities can be effectively prevented from entering the interior of the transmission module, reducing the damage of dust, water and other impurities to the internal bearings of the transmission module, thereby extending the service life of the transmission module.

[0070] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an", and "" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain", and "have" are inclusive and therefore specify the presence of the stated features, steps, operations, elements, and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0071] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0072] The foregoing is merely a detailed description of the present invention, intended to enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is to be construed in the widest manner consistent with the principles and novel features claimed herein.

Claims

1. A transmission module, applied to a fan, characterized in that: include: A transmission body, comprising a transmission housing and a bearing, wherein the transmission housing is provided with an accommodating space, a first connecting hole and a second connecting hole, wherein the first connecting hole and the second connecting hole are located on opposite sides of the transmission housing, and both the first connecting hole and the second connecting hole are connected to the accommodating space, and the bearing is located in the accommodating space; a transmission shaft connected to the bearing and passing through the bearing, the first connection hole, and the second connection hole; and A sealing assembly, the sealing assembly includes a first sealing ring and a second sealing ring, the first sealing ring is sleeved on the outer circumference of the transmission shaft and abuts between the transmission housing and the transmission shaft to seal the first connecting hole, and the second sealing ring is sleeved on the outer circumference of the transmission shaft and abuts between the transmission housing and the transmission shaft to seal the second connecting hole.

2. The transmission module according to claim 1, characterized in that: The transmission housing includes a first sub-shell and a second sub-shell, the second sub-shell is detachably connected to the first sub-shell, the first sub-shell and the second sub-shell together enclose the accommodating space, the first connecting hole is located in the first sub-shell, and the second connecting hole is located in the second sub-shell.

3. The transmission module according to claim 2, characterized in that: The first sub-shell is provided with a first snap-fit ​​structure, and the second sub-shell is provided with a second snap-fit ​​structure, and the second snap-fit ​​structure can be snap-fitted and fixed with the first snap-fit ​​structure.

4. The transmission module according to claim 2, characterized in that: The sealing assembly further includes a third sealing ring, which is arranged around the circumference of the transmission shaft. The third sealing ring is located at the end of the first sub-shell and abuts between the first sub-shell and the second sub-shell.

5. The transmission module according to claim 4, characterized in that: The second subshell is provided with a positioning groove, and the third sealing ring is embedded in the positioning groove.

6. The transmission module according to claim 2, characterized in that: The first sealing ring includes a first connecting portion and a first sealing portion, the first connecting portion being connected to the first sub-shell, the first sealing portion surrounding the outer circumference of the transmission shaft and abutting against the transmission shaft, and the inner diameter of the first sealing portion gradually decreases from the accommodating space toward a direction away from the second connecting hole; The second sealing ring includes a second connecting portion and a second sealing portion connected to each other, the second connecting portion is connected to the second sub-shell, the second sealing portion surrounds the outer circumference of the transmission shaft and abuts against the transmission shaft, and the inner diameter of the second sealing portion gradually decreases from the accommodating space toward the direction away from the first connecting hole.

7. The transmission module according to claim 6, characterized in that: The first connecting portion can be adaptively mounted on the first connecting hole on the first sub-shell; The second connecting portion can be adaptively mounted on the second connecting hole on the second sub-shell.

8. The transmission module according to claim 6, characterized in that: The first sealing portion includes a first abutting section and a first inclined section, wherein the first inclined section is connected between the first connecting portion and the first abutting section, the first inclined section is inclined, and the first abutting section abuts against the transmission shaft and extends radially along the transmission shaft; The second sealing portion includes a second abutting section and a second inclined section, the second inclined section is connected between the second connecting portion and the second abutting section, the second inclined section is inclined, the second abutting section abuts against the transmission shaft and extends radially along the transmission shaft.

9. The transmission module according to claim 3, characterized in that: The first buckle structure is a buckle protrusion, and the second buckle structure is a buckle slot. The buckle can be embedded in the buckle slot.

10. A fan, characterized in that: include: A machine head, the machine head comprising a motor, the motor being provided with an output shaft; a fan head, the fan head being detachably connected to the machine head, the fan head comprising fan blades; and According to the transmission module according to any one of claims 1 to 9, the transmission shaft is connected to the output shaft and the fan blades.

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