Damper and clothes processing equipment

Abstract

The invention provides a damper and clothes processing equipment, and belongs to the technical field of dampers. The damper comprises a sleeve, a spring and a spring, and an opening is formed in one end of the axial direction of the sleeve; the piston rod comprises a first end and a second end which are arranged in the axial direction of the piston rod, the first end is arranged in the sleeve in a sliding mode, the second end extends out of the sleeve through the opening, the piston rod can reciprocate relative to the sleeve, a damping medium containing space is formed between the piston rod and the inner wall of the sleeve, and a center control cavity is formed in the piston rod; the central control cavity is filled with an energy storage material, and the energy storage material can conduct heat with the damping medium in the damping medium containing space through the cavity wall of the central control cavity. According to the embodiment, the temperature of the damping medium can be maintained within the optimal working temperature range, the viscosity stability of the damping medium is guaranteed, and the damping performance and the service life of the damper are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of damper technology, and more particularly to a damper and clothing treatment device. Background Technology

[0002] Dampers are typically used to absorb vibration energy to improve the operational stability of vibrating equipment. In the prior art, dampers usually adopt a single-structure combination of a sleeve and a piston rod, with a damping medium of fixed viscosity filled between the sleeve and the piston rod. The vibration reduction effect is generated by the flow of the damping medium within the sleeve.

[0003] Existing dampers, which use damping media with fixed viscosity, have fluidity significantly affected by temperature. At low temperatures, the viscosity of the damping media increases or even solidifies, leading to a decrease in damping effect; at high temperatures, the media may denature, affecting its service life. Summary of the Invention

[0004] This application provides a damper and a clothing processing device to at least solve the problem that the damper's damping medium fluidity decreases, vibration reduction performance decreases, or even fails due to changes in ambient temperature.

[0005] According to a first aspect of the embodiments of this application, a damper is provided, the damper comprising: A sleeve, with an opening at one end in the axial direction; A piston rod includes a first end and a second end arranged along its axial direction. The first end is slidably disposed inside the sleeve, and the second end extends out of the sleeve through the opening. The piston rod is capable of reciprocating relative to the sleeve. A damping medium accommodating space is formed between the piston rod and the inner wall of the sleeve. A central control cavity is provided inside the piston rod. The central control cavity is filled with energy storage material. The energy storage material can conduct heat with the damping medium in the damping medium accommodating space through the cavity wall of the central control cavity.

[0006] By using this embodiment, a central control cavity is set inside the piston rod and filled with energy storage material, the temperature of the damping medium can be maintained within the optimal operating temperature range, thereby ensuring the viscosity stability of the damping medium and guaranteeing the damping performance and service life of the damper.

[0007] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the outer wall of the piston rod and / or the inner wall of the sleeve are provided with a damping medium flow channel, and the damping medium flow channel is configured to guide the damping medium to flow along the axial and / or circumferential direction of the piston rod during the reciprocating motion of the piston rod relative to the sleeve.

[0008] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the damping medium flow channel is a spiral flow channel, and the spiral flow channel extends along the axial direction of the sleeve.

[0009] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the spiral channel has multiple spiral segments in the axial direction of the sleeve, and the multiple spiral segments have different structural parameters, including pitch, and / or helix angle, and / or spiral channel width, and / or spiral channel depth.

[0010] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the spiral flow channel includes a first flow channel segment, a second flow channel segment, and a third flow channel segment, wherein the first flow channel segment is close to the first end, the third flow channel segment is close to the second end, and the second flow channel segment is located between the first flow channel segment and the third flow channel segment; The pitch of the first flow channel section is greater than that of the second flow channel section, and the pitch of the third flow channel section is greater than that of the second flow channel section.

[0011] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the damping medium flow channel includes a first flow channel disposed on the outer wall of the piston rod, the flow channel groove of the first flow channel is a groove formed by the outer wall of the piston rod recessing into the central control cavity, the wall of the flow channel groove forms a boss corresponding to the inner wall of the central control cavity, and the energy storage material in the central control cavity wraps the boss.

[0012] In conjunction with the first aspect, in an optional implementation of the present application, the spiral flow channel includes a first spiral flow channel disposed on the outer wall of the piston rod and a second spiral flow channel disposed on the inner wall of the sleeve. The flow channel groove of the first spiral flow channel is formed by the outer wall of the piston rod recessing into the central control cavity, and the flow channel groove of the second spiral flow channel is formed by the inner wall of the sleeve recessing inward.

[0013] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the pitch of the second helical flow channel is greater than that of the first helical flow channel; and / or, The first spiral channel has the same spiral direction as the second spiral channel; and / or, The helix angle of the first helical channel is different from that of the second helical channel.

[0014] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, a plurality of flow-disrupting elements are further provided in the damping medium flow channel, the plurality of flow-disrupting elements being arranged along the extension direction of the damping medium flow channel and / or along the width direction of the damping medium flow channel.

[0015] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the aerodynamic element includes one or more combinations of aerodynamic plate, aerodynamic bulge, and an annular aerodynamic groove.

[0016] In conjunction with the first aspect, in an optional implementation of the embodiments of this application, the energy storage material further comprises thermally conductive fibers; and / or, the central control cavity is further provided with a heating tube.

[0017] In conjunction with the first aspect, in one optional implementation of the embodiments of this application, the damping medium is an oil-based damping medium, and the energy storage material is a phase change energy storage material.

[0018] According to a second aspect of the present application, a garment processing device is provided, the garment processing device including a frame, an outer cylinder and a plurality of dampers, the outer cylinder being disposed within a search frame, the plurality of dampers being disposed at the lower part of the outer cylinder, one end of a sleeve away from the second end being rotatably connected to the lower part of the outer cylinder, the second end being rotatably connected to the frame, and at least one of the plurality of dampers being the damper provided in the first aspect of the present application.

[0019] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a damper according to an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the piston rod according to an embodiment of the present invention.

[0022] Figure 3 This is a cross-sectional view of a piston rod according to an embodiment of the present invention.

[0023] Figure 4 This is a schematic diagram of the damper installation of a garment processing device according to an embodiment of the present invention.

[0024] The attached figures are labeled as follows: 1. Sleeve; 2. Piston rod; 3. Sealing ring; 4. Connector; 5. Energy storage material; 10. Outer cylinder; 11. Base; 21. Flow channel; 201. First flow channel section; 202. Second flow channel section; 203. Third flow channel section; 211. First boss section; 212. Second boss section; 213. Third boss section. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] Throughout the specification and claims, the following terms will have at least the meaning explicitly associated herein, unless the context otherwise requires. The meanings defined below are not intended to limit the terms, but are merely illustrative examples. In the description of this invention, the phrase "in one embodiment" does not necessarily refer to the same embodiment, although it may refer to the same embodiment. Similarly, the phrase "in some embodiments," as used herein, does not necessarily refer to the same embodiment when used multiple times, although it may refer to the same embodiment. As used herein, the term "or" is an inclusive "or" operator and is equivalent to the term "and / or," unless the context clearly specifies otherwise. The term "based on" is not exclusive and allows for reliance on additional factors not described, unless the context clearly specifies otherwise. The word "exemplary" herein means "serving as an example, instance, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior to or better than other embodiments. The scope of this invention is limited only by the scope of the appended claims, and any examples set forth in this specification are not intended to be limiting, but merely illustrate some of the many possible embodiments of the claimed invention. The various embodiments provided in this invention should not be construed as limiting the scope of protection of this invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] Because current dampers use oil-based damping media with fixed viscosity, their fluidity is greatly affected by temperature. For example, in low-temperature environments, the viscosity of the damping media increases or even solidifies, leading to a decrease in damping effect. In high-temperature environments, the damping media will degenerate, affecting its service life.

[0032] To address the above problems, this embodiment proposes a damper. This damper can be used for vibration reduction in equipment operating under vibration conditions, such as in clothing processing equipment; it can also be used for vibration reduction in equipment operating under vibration conditions. This embodiment does not specifically limit the type of equipment to which the damper is applied.

[0033] like Figures 1-3 As shown, the damper in this embodiment includes a sleeve 1 and a piston rod 2. The sleeve 1 is a long cylindrical structure with an opening at one end in the axial direction. A slide rail communicating with the opening is formed inside the sleeve 1, extending along the axial direction of the sleeve 1. The piston rod 2 includes a first end and a second end arranged in its axial direction. The first end is slidably disposed within the sleeve 1, and the second end extends out of the sleeve 1 from the opening. The piston rod 2 can reciprocate relative to the sleeve 1. A damping medium accommodating space is formed between the piston rod 2 and the inner wall of the sleeve 1. The damping medium, for example, is an oil-based damping medium. When the piston rod 2 is applied in a vibration scenario, the damping medium generates a damping force in the gap between the slide rail and the piston rod 2, consuming mechanical energy and absorbing vibration energy, thus achieving a vibration reduction effect.

[0034] The piston rod 2 is also equipped with a central control cavity, which is filled with energy storage material 5. The energy storage material can conduct heat with the damping medium in the damping medium accommodating space through the cavity wall of the central control cavity.

[0035] For example, the piston rod 2 includes a cylindrical body and a connector 4. The opening of the cylindrical body is threaded to the connector 4. A sealing ring 3 is provided at the connection to form a central control cavity inside the cylindrical body. Before the connector 4 seals the opening, the hollow cavity of the cylindrical structure is filled with energy storage material 5.

[0036] The energy storage material 5 is, for example, a phase change energy storage material. The energy storage material 5 can release heat to increase the temperature of the damping medium when the internal temperature of the damper is below a first preset temperature, preventing the damping medium from becoming too viscous. The energy storage material 5 can also melt and absorb heat when the internal temperature of the damper is above a second preset temperature to prevent aging of the damping medium. The energy storage material 5 can maintain the temperature of the damping medium within the optimal operating temperature range between the first and second preset temperatures, thereby ensuring the viscosity stability of the damping medium and preventing the damping performance of the damping medium from being affected by environmental and operating conditions.

[0037] In a specific example, the energy storage material 5 is a paraffin-based composite material with a density of approximately 0.95 g / cm³, a latent heat of 2,600 J / g, a heat storage capacity of 2,470 J / cm³ per unit volume, and a phase change temperature of 25°C. When the internal temperature of the damper is below 25°C, the energy storage material 5 solidifies and releases latent heat; when the temperature is above 55°C, the energy storage material 5 melts and absorbs heat, ensuring that the damping medium remains within the optimal operating temperature range of 25°C to 55°C. In the application scenario of clothing processing equipment, when the clothing processing equipment operates for 30 minutes, the heat generation of a single damper does not exceed 12 kJ. Each damper piston rod 2 contains 5 cm³ of energy storage material 5 in its central control cavity, and the total heat storage capacity of the energy storage material 5 is 5 cm³ × 2,470 J / cm³ = 12.35 kJ. The heat exchange efficiency during its phase change process meets the daily use requirements of the clothing processing equipment.

[0038] In one alternative implementation, such as Figure 2 As shown, the outer wall of the piston rod 2 and / or the inner wall of the sleeve 1 are provided with damping medium flow channels 21. The damping medium flow channels 21 are constructed such that, during the reciprocating motion of the piston rod 2 relative to the sleeve 1, they can guide the damping medium to flow along the axial and / or circumferential direction of the piston rod 2, and form a continuous turbulent flow field within the sleeve 1, suppressing the generation of eddies, making the flow of the damping medium more orderly and smoother, and the damping effect more controllable. At the same time, they can also reduce the aerodynamic noise generated by eddies, thereby achieving the effect of reducing vibration noise.

[0039] In this embodiment, the damping medium flow channel 21 can be provided only on the inner wall of the sleeve 1, or only on the outer wall of the piston rod 2, or both the inner wall of the sleeve 1 and the outer wall of the piston rod 2 can be provided with the damping medium flow channel 21.

[0040] The type of damping medium flow channel 21 in this embodiment is not limited.

[0041] In one example, the damping medium flow channel 21 includes multiple straight damping medium flow channels 21 and multiple curved damping medium flow channels 21. Taking the multiple straight damping medium flow channels 21 and multiple curved damping medium flow channels 21 located on the piston rod 2 as an example, each straight damping medium flow channel 21 extends along the axial direction of the piston rod 2, and the multiple straight damping medium flow channels 21 are arranged along the circumferential direction of the piston rod 2. The end of the nth straight damping medium flow channel 21 near the first end is connected to the end of the (n+1)th straight damping medium flow channel 21 near the first end through a curved damping medium flow channel 21, and the end of the nth straight damping medium flow channel 21 near the second segment is connected to the end of the (n-1)th straight damping medium flow channel 21 near the second segment through a curved damping medium flow channel 21, where n is an integer greater than or equal to 2.

[0042] In one example, such as Figure 2 As shown, the damping medium flow channel 21 is a spiral flow channel, which extends along the axial direction of the sleeve 1. Taking the damping medium flow channel 21 located on the inner wall of the sleeve 1 as an example, the spiral flow channel extends spirally along the inner wall surface of the sleeve 1 in the axial direction of the sleeve 1. It should be noted that the damping medium flow channel 21 in this embodiment can be a spiral damping medium flow channel 21 in its entirety, or only part of the structure can be a spiral flow channel, while other parts of the damping medium flow channel 21 can be straight or curved damping medium flow channels 21. No specific limitation is made here.

[0043] Because conventional damping media form vortices inside the piston rod 2 and sleeve 1 during the pulling and retraction process, resulting in significant aerodynamic noise, this embodiment addresses this by incorporating helical flow channels on the inner wall of sleeve 1 and / or the outer wall of piston rod 2. This breaks the vortex formation path, reduces aerodynamic noise, and avoids mechanical noise caused by damping force fluctuations. Furthermore, the helical flow channels promote efficient operation of the damping medium, significantly extending the service life of the damper.

[0044] The spiral flow channel in this embodiment can adjust parameters such as pitch and helix angle according to different damping media to adjust the performance of the damper.

[0045] In one alternative embodiment, the spiral channel in the axial direction of the sleeve 1 has multiple spiral segments with different structural parameters, including pitch, and / or helix angle, and / or spiral channel width, and / or spiral channel depth.

[0046] This embodiment does not specifically limit the formation method of the damping medium flow channel 21.

[0047] In one example, the damping medium flow channel 21 can be formed by the gap between two parallel spiral ribs. Taking the spiral flow channel on the outer wall of the piston rod 2 as an example, the outer wall of the piston rod 2 includes two parallel spiral ribs, and the gap between the two parallel spiral ribs forms the spiral flow channel.

[0048] In another example, the damping medium channel 21 can be a groove formed in the inner wall of the sleeve 1 and / or the outer wall of the piston rod 2.

[0049] When damping medium flow channels 21 are provided on both the inner wall of the sleeve 1 and the outer wall of the piston rod 2, the manner in which the damping medium flow channels 21 are formed on the inner wall of the sleeve 1 and the outer wall of the piston rod 2 can be the same or different. For example, when damping medium flow channels 21 are provided on both the inner wall of the sleeve 1 and the outer wall of the piston rod 2, the damping medium flow channel 21 on the inner wall of the sleeve 1 is formed by the gap between two parallel ribs, and the damping medium flow channel 21 on the outer wall of the piston rod 2 is a groove opened on the outer wall of the piston rod 2.

[0050] In one alternative implementation, refer to Figure 2 and Figure 3 The spiral flow channel includes a first flow channel section 201, a second flow channel section 202, and a third flow channel section 203. The first flow channel section 201 is closer to the first end, the third flow channel section 203 is closer to the second end, and the second flow channel section 202 is located between the first flow channel section 201 and the third flow channel section 203. The pitch of the first flow channel section 201 is greater than that of the second flow channel section 202, and the pitch of the third flow channel section 203 is greater than that of the second flow channel section 202. Taking the spiral flow channel being installed on the outer wall of the piston rod 2 as an example, the first flow channel section 201 is... Figure 2 and Figure 3 The damping medium flow channel 21 section is located within the dashed box above the piston rod 2, and the second flow channel section 202 is... Figure 2 and Figure 3 The damping medium flow channel 21 section is located within the dashed box in the middle of piston rod 2, and the third flow channel section 203 is... Figure 2 and Figure 3 The damping medium flow channel 21 is located within the dashed box at the lower part of piston rod 2. The direction of the damping medium flow channel 21 within the helical flow channel is referenced. Figure 2 The direction indicated by the middle arrow.

[0051] In this embodiment, the different pitches of the first flow channel section 201, the second flow channel section 202, and the third flow channel section 203 of the spiral flow channel allow the damper to withstand different damping forces under different motion amplitudes, resulting in the damping medium flowing at different velocities and thus generating different magnitudes of damping force. When dealing with larger vibration amplitudes, the damper experiences a larger stretch, and the damping medium flows along the second flow channel section 202 with its denser spiral, enhancing the damping effect. When dealing with smaller vibration amplitudes, the damper experiences a smaller stretch, and the damping medium flows in the third flow channel section 203 with its sparser flow channels, reducing the damping effect. Since the sleeve 1 will not be stretched to the extreme height of the first flow channel section 201, the use of a sparser spiral in the first flow channel section 201 prevents the damping medium from accumulating at the top during vertical flow, thus avoiding impact on the damping effect, while maintaining the uniformity of the damping medium's flow velocity between the piston rod 2 and the sleeve 1.

[0052] Taking a garment processing device as an example, the damper's movement amplitude varies depending on the rotational speed of the garment processing drum. When the garment processing drum resonates at a low speed of 200-300 rpm, it is in a low-frequency resonance state. At this time, the damper's pulling amplitude is large, and the upward movement of sleeve 1 is the largest. The contact area between piston rod 2 and sleeve 1 becomes smaller. At this time, the lower edge of sleeve 1 is basically at the second flow channel section 202. To prevent sleeve 1 from detaching from the second flow channel section 202 due to large amplitude, the second flow channel section 202 is designed with a denser spiral structure. More damping medium flows in this area, resulting in greater damping force. However, when the garment processing drum is rotating at high speed, the movement amplitude of sleeve 1 is usually smaller, moving up and down at the position of the third flow channel section 203. More damping medium flows in this area, resulting in less damping force.

[0053] In this embodiment, the lengths of the first flow channel section 201, the second flow channel section 202, and the third flow channel section 203 are flexibly designed according to the magnitude of the vibration amplitude experienced by the damper in the vibration scenario, and are not specifically limited here. The pitch of the first flow channel section 201, the second flow channel section 202, and the third flow channel section 203 is determined by the application scenario of the damper, the type of damping medium, and the magnitude of the damping force experienced, and is not specifically limited here either.

[0054] In this embodiment, the damping medium forms a continuous turbulent flow field in a spiral flow channel with a first flow channel section 201, a second flow channel section 202, and a third flow channel section 203, which avoids the local oil film rupture caused by sudden changes in the motion speed between the sleeve 1 and the piston rod 2, thereby suppressing the instability of the damping force. By controlling the flow velocity of the damping medium to change gradually along the width → narrow → wide spacing of the spiral flow channel, the fluid turbulence and heat transfer are enhanced.

[0055] In one optional implementation, the damping medium flow channel 21 includes a first flow channel disposed on the outer wall of the piston rod 2. The flow channel groove of the first flow channel is a groove formed by the outer wall of the piston rod 2 recessing into the central control cavity. The wall of the flow channel groove forms a corresponding boss on the inner wall of the central control cavity. The energy storage material 5 in the central control cavity covers the boss. (Refer to...) Figure 3 The inner wall of the flow channel groove forms a first boss section 211 at the position corresponding to the first flow channel section 201, a second boss section 212 at the position corresponding to the second flow channel section 202, and a third boss section 213 at the position corresponding to the third flow channel section 203. When the damper is in action, the damping medium is concentrated in the groove located on the outer wall of the piston rod 2. The boss formed in the central control cavity inside the piston rod 2 provides a larger heat exchange area. At the same time, the phase change material acts on the surface of the boss, further enhancing the heat exchange capacity between the damper and the phase change material.

[0056] In one alternative implementation, the spiral flow channel includes a first spiral flow channel on the outer wall of the piston rod 2 and a second spiral flow channel on the inner wall of the sleeve 1. The flow channel groove of the first spiral flow channel is formed by the outer wall of the piston rod being recessed into the central control cavity, and the flow channel groove of the second spiral flow channel is formed by the inner wall of the sleeve being recessed inward. In this way, a double spiral cooperative structure can be formed between the sleeve 1 and the piston rod 2, which enhances the fluid swirling intensity and further improves the heat exchange efficiency.

[0057] In a preferred embodiment, the pitch of the second helical channel is greater than that of the first helical channel to ensure that the double helical channel structure always maintains flow field coordination during the reciprocating motion of the sleeve 1 and the piston rod 2, and does not disrupt the continuity of the damping medium swirling flow due to the offset caused by the coaxiality deviation.

[0058] And / or, the rotation direction of the first helical channel is the same as that of the second helical channel to ensure that the damping medium is in an orderly swirling state, so as to further improve the damping effect.

[0059] And / or, the helix angle of the first helical flow channel is different from that of the second helical flow channel to avoid interference between the first and second helical flow channels when the sleeve 1 and piston rod 2 move relative to each other, thus ensuring the fluidity of the piston movement. The helix angle is the angle between the tangent to the helix of the helical flow channel and the generatrix of the cylindrical surface passing through the point of tangency. For example, the deviation between the helix angles of the first and second helical flow channels is greater than 0 degrees and less than or equal to 15 degrees.

[0060] In one optional implementation, the damping medium flow channel 21 is further provided with multiple flow-disrupting elements, which are arranged along the extension direction of the damping medium flow channel 21 and / or along the width direction of the damping medium flow channel 21. In one example, the flow-disrupting elements include one or more combinations of flow-disrupting plates, flow-disrupting bulges, and annular flow-disrupting grooves. This embodiment, by providing flow-disrupting elements within the damping medium flow channel 21, can enhance the turbulent heat transfer of the damping medium, significantly improve the convective heat transfer coefficient, and is particularly suitable for high heat flux density scenarios, thereby improving thermal response efficiency.

[0061] In one alternative implementation, the energy storage material 5 also has thermally conductive fibers, such as metal fibers, to enhance the thermal conductivity of the energy storage material 5; and / or, a heating tube is also provided in the central control cavity to compensate for the heat of the energy storage material 5, ensuring that the temperature of the damping medium is maintained within the optimal operating temperature range.

[0062] This embodiment also proposes a garment processing device, such as... Figure 4 As shown, the garment processing equipment includes a frame, an outer cylinder 10, and a plurality of dampers. The outer cylinder 10 is disposed within the frame, and the plurality of dampers are disposed at the lower part of the outer cylinder 10. The end of the sleeve 1 away from the second end is rotatably connected to the lower part of the outer cylinder 10, and the second end is rotatably connected to the frame. At least one of the plurality of dampers is the damper provided in the first aspect of the embodiments of this application.

[0063] Specifically, the top of the sleeve 1 is hinged to the bottom of the outer drum 10 via a pin structure, and the piston rod 2 is hinged to the base 11 via a pin structure. The base 11 is fixed to the frame. The dampers connect the outer drum 10 and the frame and are symmetrically arranged on both sides of the outer drum 10, typically four (two on each side). During the operation of the washing machine, due to the uneven mass distribution of the clothes inside the drum, an eccentric force is generated, causing the outer drum 10 assembly to vibrate. The sleeve 1 and piston rod 2 of the damper utilize a relatively movable linkage mechanism, which reciprocates during the spin-drying process of the washing machine. The damping medium is sheared in the gap, generating damping force, consuming mechanical energy, and absorbing the periodic vibration energy generated by the unbalanced rotation of the inner drum, thus achieving the purpose of vibration reduction and noise reduction.

[0064] In summary, the damper in this embodiment exhibits adaptive temperature control capability: by utilizing the energy storage material 5 combined with optimized structural design to regulate the damper's operating temperature, it ensures stable damper performance under various operating conditions, reducing the impact of ambient temperature and operating heat load on the damper's vibration reduction effect. This embodiment also specifically controls the aerodynamic noise generated by the damper's eddies, significantly improving the user's auditory experience. The damper in this embodiment features a spiral flow channel structure on the outer wall of the piston rod 2 and / or the inner wall of the sleeve 1 to enhance structural stiffness, while simultaneously promoting efficient operation of the damping medium, extending its service life, and significantly improving the damper's overall lifespan. The damper in this embodiment has a simple structure: through integrated structural design, damping, sound absorption, and temperature control functions are integrated into a single damper, eliminating the need for external components.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0066] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A damper, characterized in that, The damper includes: The sleeve (1) has an opening at one end in the axial direction; The piston rod (2) includes a first end and a second end arranged along its axial direction. The first end is slidably disposed inside the sleeve (1), and the second end extends out of the sleeve (1) through the opening. The piston rod (2) is capable of reciprocating relative to the sleeve (1). A damping medium accommodating space is formed between the piston rod (2) and the inner wall of the sleeve (1). A central control cavity is provided inside the piston rod (2). The central control cavity is filled with energy storage material (5). The energy storage material (5) can conduct heat with the damping medium in the damping medium accommodating space through the cavity wall of the central control cavity.

2. The damper according to claim 1, characterized in that, The outer wall of the piston rod (2) and / or the inner wall of the sleeve (1) are provided with a damping medium flow channel (21), which is configured to guide the damping medium to flow along the axial and / or circumferential direction of the piston rod (2) during the reciprocating motion of the piston rod (2) relative to the sleeve (1).

3. The damper according to claim 2, characterized in that, The damping medium flow channel (21) includes a spiral flow channel that extends along the axial direction of the sleeve (1).

4. The damper according to claim 3, characterized in that, In the axial direction of the sleeve (1), the spiral channel has multiple spiral segments, each with different structural parameters, including pitch, and / or helix angle, and / or spiral channel width, and / or spiral channel depth.

5. The damper according to claim 4, characterized in that, The spiral flow channel includes a first flow channel section (201), a second flow channel section (202), and a third flow channel section (203). The first flow channel section (201) is close to the first end, the third flow channel section (203) is close to the second end, and the second flow channel section (202) is located between the first flow channel section (201) and the third flow channel section (203). The pitch of the first flow channel section (201) is greater than that of the second flow channel section (202), and the pitch of the third flow channel section (203) is greater than that of the second flow channel section (202).

6. The damper according to claim 2, characterized in that, The damping medium flow channel (21) includes a first flow channel provided on the outer wall of the piston rod (2). The flow channel groove of the first flow channel is a groove formed by the outer wall of the piston rod (2) recessing into the central control cavity. The wall of the flow channel groove forms a boss corresponding to the inner wall of the central control cavity. The energy storage material (5) in the central control cavity wraps the boss.

7. The damper according to claim 3, characterized in that, The spiral flow channel includes a first spiral flow channel on the outer wall of the piston rod (2) and a second spiral flow channel on the inner wall of the sleeve (1). The flow channel groove of the first spiral flow channel is formed by the outer wall of the piston rod (2) recessing into the central control cavity, and the flow channel groove of the second spiral flow channel is formed by the inner wall of the sleeve (1) recessing inward.

8. The damper according to claim 7, characterized in that, The pitch of the second helical channel is greater than that of the first helical channel; and / or, The first spiral channel has the same spiral direction as the second spiral channel; and / or, The helix angle of the first helical channel is different from that of the second helical channel.

9. The damper according to claim 2, characterized in that, The damping medium flow channel (21) is also provided with a plurality of flow disturbance components, which are arranged along the extension direction of the damping medium flow channel (21) and / or along the width direction of the damping medium flow channel (21).

10. The damper according to claim 9, characterized in that, The aerodynamic element includes one or more combinations of aerodynamic vanes, aerodynamic bulges, and annular aerodynamic grooves.

11. The damper according to claim 1, characterized in that, The energy storage material (5) also contains thermally conductive fibers; and / or, the central control cavity is also provided with a heating tube.

12. The damper according to any one of claims 1-11, characterized in that, The damping medium is an oil-based damping medium, and the energy storage material is a phase change energy storage material.

13. A garment processing device, characterized in that, The garment processing device includes a frame, an outer cylinder (10), and a plurality of dampers. The outer cylinder (10) is disposed within the search frame, and the plurality of dampers are disposed at the lower part of the outer cylinder (10). The end of the sleeve (1) away from the second end is rotatably connected to the lower part of the outer cylinder (10), and the second end is rotatably connected to the frame. At least one of the plurality of dampers is the damper described in any one of claims 1-10.

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