A washing machine
By installing sensors on the inner lining of the mini washing machine to detect the swing of the drum and the status of the lid, and combining this with the electronic control module to control the spin speed, the safety hazards and space utilization issues of the mini washing machine are solved, thus improving both safety and space utilization.
Patent Information
- Application Number
- CN202522581368.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-12-04
- Filing Date
- 2025-12-04
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-04
AI Technical Summary
Existing mini washing machines pose safety hazards when overloaded or when the lid is accidentally opened, and they also have low space utilization.
Sensors are installed on the inner lining of the washing machine to detect the swing amplitude of the drum and the status of the top cover assembly. The drum speed is controlled or stopped by the electronic control module. Combined with the compact wiring and avoidance structure, safety and space utilization are ensured.
It improves the operational safety of mini washing machines, makes full use of internal space, reduces costs, and enhances aesthetics.
Smart Images

Figure CN224930821U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of washing machine technology, and more specifically, to a washing machine. Background Technology
[0002] With the improvement of living standards, sorting and washing clothes has become a common practice for most users. This not only improves washing efficiency and results but also effectively avoids cross-contamination. Existing fully automatic washing machines are mainly used for washing large items, while washing underwear, socks, etc., separately wastes water and electricity. Manually washing small items such as underwear, socks, and baby clothes is not only labor-intensive but also takes up a lot of leisure time, making it increasingly unpopular with modern people. Therefore, people need a small washing machine specifically designed for washing small items.
[0003] Application number CN202223033146.5, an earlier Chinese patent filed by the applicant, discloses a washing machine with a drying function. It incorporates an inner liner assembly between the drum and the outer shell for mounting and fixing electrical components, resulting in a more compact structure and higher space utilization, suitable for small washing machines. However, the small capacity of mini washing machines makes them prone to overloading, leading to significant drum swaying and potential safety hazards. Furthermore, if the top cover assembly is opened during washing, water can splash out, also posing a safety risk. How to further fully and rationally utilize the internal space of small washing machines while ensuring their safe and reliable operation is one of the problems that needs to be solved in this field.
[0004] In view of the above, this utility model is hereby proposed. Utility Model Content
[0005] The problem solved by this invention is how to make full use of the internal space of a small washing machine while ensuring its operational safety.
[0006] To address the aforementioned problems, this utility model provides a washing machine, comprising: a drum body for washing clothes; an inner liner disposed on the outer periphery of the drum body for fixing electrical components; the electrical components include a first sensor disposed on the upper part of the inner liner and connected to an electronic control module, for detecting whether the swing amplitude of the drum body during operation exceeds a preset value and feeding it back to the electronic control module, thereby enabling the electronic control module to selectively control the drum body to reduce its rotation speed or stop rotating.
[0007] This design ensures that the rotation speed is reduced or stopped when the cylinder swings too much, preventing it from colliding with the lining and other structures to ensure safety. At the same time, placing the first sensor on the lining results in a more compact structure, lower cost, more aesthetically pleasing appearance, and less space occupation.
[0008] Preferably, the inner liner includes an inner liner skeleton, and a first fixing seat is provided on the upper end face of the inner liner skeleton for limiting the assembly of the first sensor. The first sensor 5 includes a sensing element 51, which passes through the first fixing seat and extends downward. Placing the first sensor on the upper end face of the inner liner can more accurately detect the deflection of the drum, ensuring the operational safety of the washing machine.
[0009] Preferably, a first opening is provided at the center of the upper end of the inner liner, and the washing machine includes a top cover assembly. One end of the top cover assembly is hinged to the inner liner to selectively close the first opening. The electrical components also include a second sensor connected to the electronic control module to detect whether the top cover assembly is open and to feed back to the electronic control module, thereby enabling the electronic control module to control the drum to reduce its speed or stop rotating.
[0010] By setting a separate second sensor, it is possible to detect and identify situations where the top cover assembly is accidentally opened during the operation of the washing machine. At this time, the electronic control module reduces the speed of the drum or stops its rotation to ensure operational safety. The structure is compact and has a high space utilization rate.
[0011] Preferably, a second fixing seat is provided on the upper end face, the second fixing seat being located near the first opening and near the free end of the upper cover assembly, for limiting the assembly of the second sensor. This arrangement enables the second sensor to generate a signal when the upper cover assembly is opened, which is then transmitted to the electronic control module, thereby controlling the cylinder to reduce its rotation speed or stop rotating, ensuring operational safety; placing the second sensor at the free end of the upper cover assembly makes the movement of the upper cover assembly more noticeable, effectively preventing accidental activation.
[0012] Preferably, a wire-passing structure is provided on the upper surface of the inner lining skeleton. The wire-passing structure includes a first wire clamp for limiting the connection wires of the first sensor and / or the second sensor. This setting can constrain the connection wires of the first sensor and the second sensor, ensuring their connection is stable and reliable, and preventing excessive shaking of the cylinder 1 and the possibility of the top cover assembly opening due to accidental contact by children during operation.
[0013] Preferably, the wire guide structure further includes a limiting post and a second wire clamping buckle. There are two limiting posts with a gap between them, and the second wire clamping buckle is located on the side of the limiting post away from the first wire clamping buckle. This design is simple and easy to manufacture.
[0014] Preferably, the washing machine further includes a liquid storage device and a power device, with the inlet and outlet ends of the power device connected to the liquid storage device and the drum body, respectively. A first assembly position is provided on the side wall of the inner lining frame for limiting the assembly of the liquid storage device. The first assembly position has a first wiring groove on the side near the wiring structure. This design not only increases the mechanical strength of the first assembly position but also facilitates the downward guidance of the connecting wires, allowing for more diverse placement of the electronic control module and high space utilization. Simultaneously, the liquid storage device and power device enable automatic washing and dispensing, resulting in a better user experience.
[0015] Preferably, the inner lining frame sidewall is provided with a second assembly position, which is located below the first assembly position and is used to limit the assembly of the power device. The second assembly position has a second wiring groove on the side near the first wiring groove. This arrangement can constrain the connecting wires and improve the structural strength of the second assembly position.
[0016] Preferably, the outer periphery of the inner lining skeleton is provided with a clearance structure, which is located on the left, right, and / or front sides of the inner lining skeleton. This arrangement not only prevents the cylinder and related accessories from colliding with the inner lining due to excessive displacement during rotation, but also reduces the material consumption of the inner lining, thus reducing its weight.
[0017] Preferably, the washing capacity of the washing machine is 1-5 kg.
[0018] Compared with the prior art, the washing machine of this utility model has the following advantages: 1) By setting a first sensor in the inner lining, it is possible to detect excessive swing amplitude of the drum and feed back to the electronic control module for response, thereby improving operational safety; 2) By setting a second sensor in the inner lining, it is possible to detect the situation where the top cover assembly is accidentally opened during operation and feed back to the electronic control module for response, thereby improving operational safety; 3) By setting a wire-passing structure, the connection lines of the first and second sensors can be constrained to ensure stable and reliable connection; 4) The structure is compact and makes full use of the internal space of the washing machine. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of the washing machine according to an embodiment of the present utility model (left rear view). Figure 2 for Figure 1 A magnified view of a section at point A in the middle; Figure 3 for Figure 1 A magnified view of a section at point B in the middle; Figure 4 This is a left view of the washing machine described in this embodiment of the present invention (only the inner liner, liquid storage device, and power device are shown). Figure 5 This is another perspective view (left rear view) of the washing machine described in this embodiment of the utility model.
[0020] Explanation of reference numerals in the attached figures: 1-Cylinder body; 2-Inner liner; 21-Inner liner skeleton; 211-Upper end face; 212-First opening; 213-Avoidance structure; 2131-First avoidance hole; 2132-Second avoidance hole; 2133-Third avoidance hole; 214-Assembly port; 215-First assembly position; 216-Second assembly position; 22-First fixing seat; 23-Second fixing seat; 24-Wire guiding structure; 241-First wire clamp; 242-Limiting post; 243-Second wire clamp; 244-First wire routing groove; 245-Second wire routing groove; 3-Liquid storage device; 4-Power device; 5-First sensor; 51-Sensing element; 6-Second sensor. Detailed Implementation
[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Without conflict, the technical features of the embodiments of this utility model can be combined with each other.
[0022] The directional terms such as "up," "down," "left," "right," "front," and "back" used in this application can be found in the appendix. Figure 1 The coordinate system in the diagram. In this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.
[0023] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] With the improvement of living standards, small-capacity washing machines specifically designed for washing small items such as underwear and socks are increasingly favored by consumers. Their main characteristics are compact structure and extremely high utilization of internal space. However, due to their small capacity, these washing machines are prone to overloading. Improperly arranged clothes can lead to a significant increase in the drum's swaying amplitude, potentially causing serious safety issues. Therefore, the applicant proposes the following technical solution: like Figure 1-5As shown, a washing machine includes: Drum 1, used for washing clothes; Liner 2 is provided on the outer periphery of the cylinder 1 for fixing and installing electrical components; The electrical component includes a first sensor 5, which is disposed on the upper part of the liner 2 and connected to the electronic control module. The first sensor 5 is used to detect whether the swing amplitude of the cylinder 1 is greater than a preset value and feeds it back to the electronic control module, thereby enabling the electronic control module to selectively control the cylinder 1 to reduce its rotation speed or stop rotating.
[0025] When the clothes inside are overloaded or improperly placed, the deflection of the drum 1 during rotation is too large. At this time, the drum 1 will come into contact with the first sensor 5, and the generated signal will be transmitted to the electronic control module to reduce the speed of the drum 1 or stop rotating, so as to ensure the safety of the washing machine. Setting the first sensor 5 on the inner liner 2 makes the structure more compact, the cost lower, the appearance more beautiful, and the space occupied less, which better meets the user's needs.
[0026] Preferably, the inner liner 2 includes an inner liner skeleton 21, and the upper end face 211 of the inner liner skeleton 21 is provided with a first fixing seat 22 for limiting the assembly of the first sensor 5. The first sensor 5 includes a sensing element 51, which passes through the first fixing seat 22 and extends downward.
[0027] During rotation, the top of the drum 1 deflects more significantly. By placing the first sensor 5 at the upper end of the inner lining frame 21, the deflection of the drum 1 can be detected more accurately, ensuring the operational safety of the washing machine. Preferably, the drum 1 includes an inner drum and an outer drum, and their specific structure and assembly relationship are existing technologies.
[0028] As an example of the present invention, a first opening 212 is provided at the center of the upper end of the inner liner 2. The washing machine includes a top cover assembly, one end of which is hinged to the inner liner 2 for selectively closing the first opening 212. The electrical components also include a second sensor 6 connected to the electronic control module for detecting whether the top cover assembly is open and feeding back to the electronic control module, thereby enabling the electronic control module to control the drum 1 to reduce its speed or stop rotating.
[0029] Preferably, a second fixing seat 23 is provided on the upper end face 211. The second fixing seat 23 is located near the first opening 212 and near the free end of the upper cover assembly, and is used to limit the assembly of the second sensor 6. This arrangement enables the second sensor 6 to generate a signal when the upper cover assembly is opened and transmit it to the electronic control module, thereby controlling the cylinder 1 to reduce its rotation speed or stop rotating, ensuring operational safety. Positioning the second sensor 6 at the free end of the upper cover assembly makes the movement of the upper cover assembly more noticeable, effectively preventing accidental activation. The specific structures of the first sensor 5 and the second sensor 6 are existing technologies and will not be described in detail here.
[0030] As an example of this utility model, a wire-passing structure 24 is provided on the upper end face 211 of the inner lining skeleton 21. The wire-passing structure 24 includes a first wire clamp 241, which is used to limit the connection wires of the first sensor 5 and / or the second sensor 6. This setting can constrain the connection wires of the first sensor 5 and the second sensor 6, ensuring their connection is stable and reliable, and preventing excessive shaking of the cylinder 1 and the opening of the top cover assembly due to accidental contact by children during operation.
[0031] Preferably, the thread guide structure 24 further includes two limiting posts 242, with a gap between them. This arrangement is simple and easy to manufacture. Preferably, the thread guide structure 24 further includes a second wire clamping buckle 243, which is located on the side of the limiting post 242 away from the first wire clamping buckle 241.
[0032] As an example of this utility model, the washing machine further includes a liquid storage device 3 for holding detergent; the inner lining frame 21 is provided with a first assembly position 215 for limiting the assembly of the liquid storage device 3; the first assembly position 215 is provided with a first cable routing groove 244 on the side near the cable routing structure 24. This arrangement not only increases the mechanical strength of the first assembly position 215, but also facilitates the downward guidance of the connecting wires, making the placement of the electronic control module more diverse and improving space utilization.
[0033] As an example of this utility model, the liquid storage device 3 is provided with a liquid inlet at the top, an assembly plate is provided at the outer edge of the liquid inlet, and an assembly opening 214 is provided on the upper end face 211. The assembly plate is engaged with the assembly opening 214. This arrangement connects the main body of the liquid storage device 3 to the inner liner 2, and further engages the position of the liquid inlet of the liquid storage device 3 with the inner liner 2, which can effectively ensure the stability of the assembly of the liquid storage device 3 and prevent unnecessary displacement of the liquid inlet.
[0034] Preferably, a support plate is provided on the inner side of the assembly port 214, and the lower surface of the assembly plate abuts against the upper surface of the support plate, so that the assembly plate is supported by the support plate and is snapped in the assembly port 214. On the one hand, this creates multiple contact points between the liner 2 and the liquid storage device 3 to disperse the detergent acting on the liner 2 and the gravity of the liquid storage device 3, which helps to ensure the mechanical strength of the liner 2 and avoid stress concentration in the liner 2. On the other hand, it also helps to further improve the reliability of the assembly of the liquid storage device 3.
[0035] As an example of this utility model, the inner lining frame 21 further includes a second assembly position 216, which is located below the first assembly position 215 and is used to limit the assembly of the power device 4. The outlet of the liquid storage device 3 is connected to the inlet of the power device 4, and the outlet of the power device 4 is directly connected to the cylinder 1.
[0036] This configuration connects the liquid storage device 3, the power unit 4, and the inner liner 2, achieving the goal of installing a liquid storage box and an automatic dispensing device in a washing machine (especially a small washing machine). This fully utilizes the internal space of the washing machine and improves space utilization. The number of the liquid storage device 3 and the power unit 4 can be set as needed; for example, there can be two of each, each located on the left and right sides of the inner liner 2.
[0037] Preferably, the second assembly position 216 has a second wiring groove 245 on the side near the first wiring groove 244, for guiding the connecting wire to the lower part of the cylinder 1. This arrangement can constrain the connecting wire and improve the structural strength of the second assembly position 216.
[0038] Preferably, a clearance structure 213 is provided on the outer periphery of the inner lining skeleton 21, and the clearance structure 213 is located on the left, right and / or front sides. This arrangement not only prevents the cylinder 1 and related accessories from colliding with the inner lining 2 due to excessive displacement during rotation, but also reduces the raw material consumption of the inner lining 2, thus reducing its weight.
[0039] As an example of this utility model, the avoidance structure 213 includes a first avoidance hole 2131 and a second avoidance hole 2132, which are located on the left side wall and the front side wall of the inner lining frame 21, respectively. The first sensor 5 and the second sensor 6 are disposed between the first avoidance hole 2131 and the second avoidance hole 2132. Preferably, the avoidance structure 213 further includes a third avoidance hole 2133, which is located on the right side wall of the inner lining frame 21.
[0040] The washing machine also includes an air duct assembly, a drying module, etc., the specific structure and assembly relationship of which are existing technologies and will not be described in detail here. The washing machine of this utility model is suitable for small washing machines, such as 1kg to 5kg, preferably 3kg, but can also be 2kg, 2.5kg, 3.5kg, 4kg, or 4.5kg.
[0041] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.
Claims
1. A washing machine, comprising: A drum (1) is used for washing clothes; an inner liner (2) is provided on the outer periphery of the drum (1) for fixing electrical components; characterized in that the electrical components include a first sensor (5), which is provided on the upper part of the inner liner (2) and connected to an electronic control module, for detecting whether the swing amplitude of the drum (1) during operation is greater than a preset value and feeding it back to the electronic control module, thereby enabling the electronic control module to selectively control the drum (1) to reduce its speed or stop rotating.
2. The washing machine according to claim 1, characterized in that, The liner (2) includes a liner frame (21), and a first fixing seat (22) is provided on the upper end face (211) of the liner frame (21) for limiting the assembly of the first sensor (5). The first sensor (5) includes a sensing element (51), which passes through the first fixing seat (22) and extends downward.
3. The washing machine according to claim 1, characterized in that, The inner liner (2) has a first opening (212) at the center of its upper end. The washing machine includes a top cover assembly, one end of which is hinged to the inner liner (2) for selectively closing the first opening (212). The electrical components also include a second sensor (6) connected to the electronic control module for detecting whether the top cover assembly is open and feeding back to the electronic control module, thereby enabling the electronic control module to control the drum (1) to reduce its speed or stop rotating.
4. The washing machine according to claim 3, characterized in that, The inner liner (2) includes an inner liner frame (21). A second fixing seat (23) is provided on the upper end face (211) of the inner liner frame (21). The second fixing seat (23) is located near the first opening (212) and near the free end of the upper cover assembly, and is used to limit the assembly of the second sensor (6).
5. The washing machine according to claim 2, characterized in that, A wire guide structure (24) is provided on the upper end face (211) of the inner lining skeleton (21). The wire guide structure (24) includes a first wire clamp (241) for limiting the connection wire of the first sensor (5) and / or the second sensor (6).
6. The washing machine according to claim 5, characterized in that, The wire guide structure (24) also includes a limiting post (242) and a second wire clamp (243). There are two limiting posts (242) with a gap between them. The second wire clamp (243) is located on the side of the limiting post (242) away from the first wire clamp (241).
7. The washing machine according to claim 5, characterized in that, The washing machine also includes a liquid storage device (3) and a power device (4). The inlet and outlet of the power device (4) are connected to the liquid storage device (3) and the drum (1) respectively. The side wall of the inner lining frame (21) is provided with a first assembly position (215) for limiting the assembly of the liquid storage device (3). The first assembly position (215) is provided with a first wiring groove (244) on the side near the wiring structure (24).
8. The washing machine according to claim 7, characterized in that, The inner lining frame (21) has a second assembly position (216) on its side wall. The second assembly position (216) is located below the first assembly position (215) and is used to limit the assembly of the power device (4). The second assembly position (216) has a second wiring groove (245) on the side close to the first wiring groove (244).
9. The washing machine according to claim 2, characterized in that, The outer periphery of the inner lining frame (21) is provided with a clearance structure (213), which is located on the left, right and / or front side of the inner lining frame (21).
10. The washing machine according to claim 1, characterized in that, The washing machine has a washing capacity of 1-5 kg.
Citation Information
Patent Citations
Washing machine with drying function
CN218521472U
